wifi-phy-cca-test.cc

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/*
 * Copyright (c) 2022
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Sébastien Deronne <sebastien.deronne@gmail.com>
 */
 
#include "ns3/constant-obss-pd-algorithm.h"
#include "ns3/eht-configuration.h"
#include "ns3/eht-phy.h"
#include "ns3/eht-ppdu.h"
#include "ns3/he-ppdu.h"
#include "ns3/ht-ppdu.h"
#include "ns3/interference-helper.h"
#include "ns3/log.h"
#include "ns3/multi-model-spectrum-channel.h"
#include "ns3/nist-error-rate-model.h"
#include "ns3/non-communicating-net-device.h"
#include "ns3/ofdm-ppdu.h"
#include "ns3/pointer.h"
#include "ns3/rng-seed-manager.h"
#include "ns3/spectrum-wifi-helper.h"
#include "ns3/spectrum-wifi-phy.h"
#include "ns3/test.h"
#include "ns3/threshold-preamble-detection-model.h"
#include "ns3/vht-configuration.h"
#include "ns3/vht-ppdu.h"
#include "ns3/waveform-generator.h"
#include "ns3/wifi-mac-header.h"
#include "ns3/wifi-net-device.h"
#include "ns3/wifi-phy-listener.h"
#include "ns3/wifi-psdu.h"
#include "ns3/wifi-spectrum-value-helper.h"
#include "ns3/wifi-standards.h"
#include "ns3/wifi-utils.h"
 
#include <algorithm>
#include <memory>
#include <vector>
 
using namespace ns3;
 
NS_LOG_COMPONENT_DEFINE("WifiPhyCcaTest");
 
constexpr MHz_u P20_CENTER_FREQUENCY{5955};
constexpr MHz_u S20_CENTER_FREQUENCY = P20_CENTER_FREQUENCY + MHz_u{20};
constexpr MHz_u P40_CENTER_FREQUENCY = P20_CENTER_FREQUENCY + MHz_u{10};
constexpr MHz_u S40_CENTER_FREQUENCY = P40_CENTER_FREQUENCY + MHz_u{40};
constexpr MHz_u P80_CENTER_FREQUENCY = P40_CENTER_FREQUENCY + MHz_u{20};
constexpr MHz_u S80_CENTER_FREQUENCY = P80_CENTER_FREQUENCY + MHz_u{80};
constexpr MHz_u P160_CENTER_FREQUENCY = P80_CENTER_FREQUENCY + MHz_u{40};
constexpr MHz_u S160_CENTER_FREQUENCY = P160_CENTER_FREQUENCY + MHz_u{160};
constexpr MHz_u P320_CENTER_FREQUENCY = P160_CENTER_FREQUENCY + MHz_u{80};
const Time testStep = Seconds(1);
const Time smallDelta = NanoSeconds(1);
const Time aCcaTime = MicroSeconds(4);
const Time legacyPhyHeaderDuration = MicroSeconds(20);
const Time hePhyHeaderDuration = MicroSeconds(32);
const Time ehtPhyHeaderDuration = MicroSeconds(40);
// add small delta to be right after aCcaTime, since test checks are scheduled before wifi events
const Time aCcaTimeWithDelta = aCcaTime + smallDelta;
const std::map<MHz_u, Time> hePpduDurations = {
    {20, NanoSeconds(1009600)},
    {40, NanoSeconds(533600)},
    {80, NanoSeconds(275200)},
};
const std::map<MHz_u, Time> ehtPpduDurations = {
    {20, NanoSeconds(1017600)},
    {40, NanoSeconds(541600)},
    {80, NanoSeconds(287200)},
    {160, NanoSeconds(178400)},
};
 
/**
 * @ingroup wifi-test
 * @ingroup tests
 *
 * @brief PHY CCA thresholds test
 */
class WifiPhyCcaThresholdsTest : public TestCase
{
  public:
    WifiPhyCcaThresholdsTest();
 
  private:
    void DoSetup() override;
    void DoTeardown() override;
    void DoRun() override;
 
    /**
     * Run tests for given CCA attributes
     */
    void RunOne();
 
    /**
     * Create a dummy PSDU whose payload is 1000 bytes
     * @return a dummy PSDU whose payload is 1000 bytes
     */
    Ptr<WifiPsdu> CreateDummyPsdu();
    /**
     * Create a non-HT PPDU
     * @param channel the operating channel of the PHY used for the transmission
     * @return a non-HT PPDU
     */
    Ptr<OfdmPpdu> CreateDummyNonHtPpdu(const WifiPhyOperatingChannel& channel);
    /**
     * Create a HT PPDU
     * @param bandwidth the bandwidth used for the transmission the PPDU
     * @param channel the operating channel of the PHY used for the transmission
     * @return a HT PPDU
     */
    Ptr<HtPpdu> CreateDummyHtPpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel);
    /**
     * Create a VHT PPDU
     * @param bandwidth the bandwidth used for the transmission the PPDU
     * @param channel the operating channel of the PHY used for the transmission
     * @return a VHT PPDU
     */
    Ptr<VhtPpdu> CreateDummyVhtPpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel);
    /**
     * Create a HE PPDU
     * @param bandwidth the bandwidth used for the transmission the PPDU
     * @param channel the operating channel of the PHY used for the transmission
     * @return a HE PPDU
     */
    Ptr<HePpdu> CreateDummyHePpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel);
    /**
     * Create a EHT PPDU
     * @param bandwidth the bandwidth used for the transmission the PPDU
     * @param channel the operating channel of the PHY used for the transmission
     * @return a EHT PPDU
     */
    Ptr<EhtPpdu> CreateDummyEhtPpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel);
 
    /**
     * Function to verify the CCA threshold that is being reported by a given PHY entity upon
     * reception of a signal or a PPDU
     * @param phy the PHY entity to verify
     * @param ppdu the incoming PPDU or signal (if nullptr)
     * @param channelType the channel list type that indicates which channel the PPDU or the
     * signal occupies
     * @param expectedCcaThreshold the CCA threshold that is expected to be reported
     */
    void VerifyCcaThreshold(const std::shared_ptr<PhyEntity> phy,
                            const Ptr<const WifiPpdu> ppdu,
                            WifiChannelListType channelType,
                            dBm_u expectedCcaThreshold);
 
    Ptr<WifiNetDevice> m_device;              ///< The WifiNetDevice
    Ptr<SpectrumWifiPhy> m_phy;               ///< The spectrum PHY
    Ptr<ObssPdAlgorithm> m_obssPdAlgorithm;   ///< The OBSS-PD algorithm
    Ptr<VhtConfiguration> m_vhtConfiguration; ///< The VHT configuration
    Ptr<EhtConfiguration> m_ehtConfiguration; ///< The EHT configuration
 
    dBm_u m_CcaEdThreshold; ///< The current CCA-ED threshold for a 20 MHz subchannel
    dBm_u m_CcaSensitivity; ///< The current CCA sensitivity threshold for signals that occupy
                            ///< the primary 20 MHz channel
 
    VhtConfiguration::SecondaryCcaSensitivityThresholds
        m_secondaryCcaSensitivityThresholds; ///< The current CCA sensitivity thresholds for
                                             ///< signals that do not occupy the primary 20 MHz
                                             ///< channel
 
    dBm_u m_obssPdLevel;         ///< The current OBSS-PD level
    dBm_u m_per20CcaSensitivity; ///< The current CCA sensitivity threshold for Per 20MHz check
};
 
WifiPhyCcaThresholdsTest::WifiPhyCcaThresholdsTest()
    : TestCase("Wi-Fi PHY CCA thresholds test"),
      m_CcaEdThreshold{-62.0},
      m_CcaSensitivity{-82.0},
      m_secondaryCcaSensitivityThresholds{dBm_u{-72}, dBm_u{-72}, dBm_u{-69}},
      m_obssPdLevel{-82.0},
      m_per20CcaSensitivity{-72.0}
{
}
 
Ptr<WifiPsdu>
WifiPhyCcaThresholdsTest::CreateDummyPsdu()
{
    Ptr<Packet> pkt = Create<Packet>(1000);
    WifiMacHeader hdr;
    hdr.SetType(WIFI_MAC_QOSDATA);
    hdr.SetQosTid(0);
    return Create<WifiPsdu>(pkt, hdr);
}
 
Ptr<OfdmPpdu>
WifiPhyCcaThresholdsTest::CreateDummyNonHtPpdu(const WifiPhyOperatingChannel& channel)
{
    WifiTxVector txVector = WifiTxVector(OfdmPhy::GetOfdmRate6Mbps(),
                                         WIFI_MIN_TX_PWR_LEVEL,
                                         WIFI_PREAMBLE_LONG,
                                         NanoSeconds(800),
                                         1,
                                         1,
                                         0,
                                         MHz_u{20},
                                         false);
    Ptr<WifiPsdu> psdu = CreateDummyPsdu();
    return Create<OfdmPpdu>(psdu, txVector, channel, 0);
}
 
Ptr<HtPpdu>
WifiPhyCcaThresholdsTest::CreateDummyHtPpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel)
{
    WifiTxVector txVector = WifiTxVector(HtPhy::GetHtMcs0(),
                                         WIFI_MIN_TX_PWR_LEVEL,
                                         WIFI_PREAMBLE_HT_MF,
                                         NanoSeconds(800),
                                         1,
                                         1,
                                         0,
                                         bandwidth,
                                         false);
    Ptr<WifiPsdu> psdu = CreateDummyPsdu();
    return Create<HtPpdu>(psdu, txVector, channel, MicroSeconds(100), 0);
}
 
Ptr<VhtPpdu>
WifiPhyCcaThresholdsTest::CreateDummyVhtPpdu(MHz_u bandwidth,
                                             const WifiPhyOperatingChannel& channel)
{
    WifiTxVector txVector = WifiTxVector(VhtPhy::GetVhtMcs0(),
                                         WIFI_MIN_TX_PWR_LEVEL,
                                         WIFI_PREAMBLE_VHT_SU,
                                         NanoSeconds(800),
                                         1,
                                         1,
                                         0,
                                         bandwidth,
                                         false);
    Ptr<WifiPsdu> psdu = CreateDummyPsdu();
    return Create<VhtPpdu>(psdu, txVector, channel, MicroSeconds(100), 0);
}
 
Ptr<HePpdu>
WifiPhyCcaThresholdsTest::CreateDummyHePpdu(MHz_u bandwidth, const WifiPhyOperatingChannel& channel)
{
    WifiTxVector txVector = WifiTxVector(HePhy::GetHeMcs0(),
                                         WIFI_MIN_TX_PWR_LEVEL,
                                         WIFI_PREAMBLE_HE_SU,
                                         NanoSeconds(800),
                                         1,
                                         1,
                                         0,
                                         bandwidth,
                                         false);
    Ptr<WifiPsdu> psdu = CreateDummyPsdu();
    return Create<HePpdu>(psdu, txVector, channel, MicroSeconds(100), 0);
}
 
Ptr<EhtPpdu>
WifiPhyCcaThresholdsTest::CreateDummyEhtPpdu(MHz_u bandwidth,
                                             const WifiPhyOperatingChannel& channel)
{
    WifiTxVector txVector{EhtPhy::GetEhtMcs0(),
                          WIFI_MIN_TX_PWR_LEVEL,
                          WIFI_PREAMBLE_EHT_MU,
                          NanoSeconds(800),
                          1,
                          1,
                          0,
                          bandwidth,
                          false};
    WifiConstPsduMap psdus;
    psdus.emplace(1, CreateDummyPsdu());
    return Create<EhtPpdu>(psdus,
                           txVector,
                           channel,
                           MicroSeconds(100),
                           0,
                           HePpdu::PSD_NON_HE_PORTION);
}
 
void
WifiPhyCcaThresholdsTest::VerifyCcaThreshold(const std::shared_ptr<PhyEntity> phy,
                                             const Ptr<const WifiPpdu> ppdu,
                                             WifiChannelListType channelType,
                                             dBm_u expectedCcaThreshold)
{
    NS_LOG_FUNCTION(this << phy << channelType << expectedCcaThreshold);
    const auto actualThreshold = phy->GetCcaThreshold(ppdu, channelType);
    NS_LOG_INFO((ppdu == nullptr ? "any signal" : "a PPDU")
                << " in " << channelType << " channel: " << actualThreshold << "dBm");
    NS_TEST_EXPECT_MSG_EQ_TOL(actualThreshold,
                              expectedCcaThreshold,
                              dB_u{1e-6},
                              "Actual CCA threshold for "
                                  << (ppdu == nullptr ? "any signal" : "a PPDU") << " in "
                                  << channelType << " channel " << actualThreshold
                                  << "dBm does not match expected threshold "
                                  << expectedCcaThreshold << "dBm");
}
 
void
WifiPhyCcaThresholdsTest::DoSetup()
{
    // WifiHelper::EnableLogComponents ();
    // LogComponentEnable ("WifiPhyCcaTest", LOG_LEVEL_ALL);
 
    m_device = CreateObject<WifiNetDevice>();
    m_device->SetStandard(WIFI_STANDARD_80211be);
    m_vhtConfiguration = CreateObject<VhtConfiguration>();
    m_device->SetVhtConfiguration(m_vhtConfiguration);
    m_ehtConfiguration = CreateObject<EhtConfiguration>();
    m_device->SetEhtConfiguration(m_ehtConfiguration);
 
    m_phy = CreateObject<SpectrumWifiPhy>();
    m_phy->SetDevice(m_device);
    m_device->SetPhy(m_phy);
    m_phy->SetInterferenceHelper(CreateObject<InterferenceHelper>());
    m_phy->AddChannel(CreateObject<MultiModelSpectrumChannel>());
 
    auto channelNum = WifiPhyOperatingChannel::FindFirst(0,
                                                         MHz_u{0},
                                                         MHz_u{320},
                                                         WIFI_STANDARD_80211be,
                                                         WIFI_PHY_BAND_6GHZ)
                          ->number;
    m_phy->SetOperatingChannel(WifiPhy::ChannelTuple{channelNum, 320, WIFI_PHY_BAND_6GHZ, 0});
    m_phy->ConfigureStandard(WIFI_STANDARD_80211be);
 
    m_obssPdAlgorithm = CreateObject<ConstantObssPdAlgorithm>();
    m_device->AggregateObject(m_obssPdAlgorithm);
    m_obssPdAlgorithm->ConnectWifiNetDevice(m_device);
}
 
void
WifiPhyCcaThresholdsTest::DoTeardown()
{
    m_device->Dispose();
    m_device = nullptr;
}
 
void
WifiPhyCcaThresholdsTest::RunOne()
{
    m_phy->SetCcaEdThreshold(m_CcaEdThreshold);
    m_phy->SetCcaSensitivityThreshold(m_CcaSensitivity);
    m_vhtConfiguration->SetSecondaryCcaSensitivityThresholds(m_secondaryCcaSensitivityThresholds);
    m_obssPdAlgorithm->SetObssPdLevel(m_obssPdLevel);
    m_ehtConfiguration->m_per20CcaSensitivityThreshold = m_per20CcaSensitivity;
 
    // OFDM PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_OFDM),
                       nullptr,
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaEdThreshold);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // OFDM PHY: 20 MHz non-HT PPDU in primary channel (20 MHz) if power above CCA sensitivity
    // threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_OFDM),
                       CreateDummyNonHtPpdu(m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // HT PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HT),
                       nullptr,
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaEdThreshold);
 
    // HT PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY,
                       m_CcaEdThreshold);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // HT PHY: 20 MHz HT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HT),
                       CreateDummyHtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // HT PHY: 40 MHz HT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HT),
                       CreateDummyHtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // VHT PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       nullptr,
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaEdThreshold);
 
    // VHT PHY: any signal in secondary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY,
                       m_CcaEdThreshold);
 
    // VHT PHY: any signal in secondary40 channel (40 MHz) if power above CCA-ED threshold + 3dB
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY40,
                       m_CcaEdThreshold + dB_u{3.0});
 
    // VHT PHY: any signal in secondary80 channel (80 MHz) if power above CCA-ED threshold + 6dB
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY80,
                       m_CcaEdThreshold + dB_u{6.0});
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // VHT PHY: 20 MHz VHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // VHT PHY: 40 MHz VHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // VHT PHY: 80 MHz VHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // VHT PHY: 160 MHz VHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{160}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // VHT PHY: 20 MHz VHT PPDU in secondary channel (20 MHz) if power above the CCA sensitivity
    // threshold corresponding to a 20 MHz PPDU that does not occupy the primary 20 MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY,
                       std::get<0>(m_secondaryCcaSensitivityThresholds));
 
    // VHT PHY: 20 MHz VHT PPDU in secondary40 channel (40 MHz) if power above the CCA
    // sensitivity threshold corresponding to a 20 MHz PPDU that does not occupy the primary 20
    // MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY40,
                       std::get<0>(m_secondaryCcaSensitivityThresholds));
 
    // VHT PHY: 40 MHz VHT PPDU in secondary40 channel (40 MHz) if power above the CCA
    // sensitivity threshold corresponding to a 40 MHz PPDU that does not occupy the primary 20
    // MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY40,
                       std::get<1>(m_secondaryCcaSensitivityThresholds));
 
    // VHT PHY: 20 MHz VHT PPDU in secondary80 channel (80 MHz) if power above the CCA
    // sensitivity threshold corresponding to a 20 MHz PPDU that does not occupy the primary 20
    // MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::get<0>(m_secondaryCcaSensitivityThresholds));
 
    // VHT PHY: 40 MHz VHT PPDU in secondary80 channel (80 MHz) if power above the CCA
    // sensitivity threshold corresponding to a 40 MHz PPDU that does not occupy the primary 20
    // MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::get<1>(m_secondaryCcaSensitivityThresholds));
 
    // VHT PHY: 80 MHz VHT PPDU in secondary80 channel (80 MHz) if power above the CCA
    // sensitivity threshold corresponding to a 80 MHz PPDU that does not occupy the primary 20
    // MHz
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_VHT),
                       CreateDummyVhtPpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::get<2>(m_secondaryCcaSensitivityThresholds));
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // HE PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       nullptr,
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaEdThreshold);
 
    // HE PHY: any signal in secondary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY,
                       m_CcaEdThreshold);
 
    // HE PHY: any signal in secondary40 channel (40 MHz) if power above CCA-ED threshold + 3dB
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY40,
                       m_CcaEdThreshold + dB_u{3.0});
 
    // HE PHY: any signal in secondary80 channel (80 MHz) if power above CCA-ED threshold + 6dB
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY80,
                       m_CcaEdThreshold + dB_u{6.0});
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // HE PHY: 20 MHz HE PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // HE PHY: 40 MHz HE PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // HE PHY: 80 MHz HE PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // HE PHY: 160 MHz HE PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{160}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // HE PHY: 20 MHz HE PPDU in secondary channel (20 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 20 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY,
                       std::max(m_obssPdLevel, std::get<0>(m_secondaryCcaSensitivityThresholds)));
 
    // HE PHY: 20 MHz HE PPDU in secondary40 channel (40 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 20 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY40,
                       std::max(m_obssPdLevel, std::get<0>(m_secondaryCcaSensitivityThresholds)));
 
    // HE PHY: 40 MHz HE PPDU in secondary40 channel (40 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 40 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level plus 3 dB
    VerifyCcaThreshold(
        m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
        CreateDummyHePpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
        WIFI_CHANLIST_SECONDARY40,
        std::max(m_obssPdLevel + dB_u{3.0}, std::get<1>(m_secondaryCcaSensitivityThresholds)));
 
    // HE PHY: 20 MHz HE PPDU in secondary80 channel (80 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 20 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
                       CreateDummyHePpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::max(m_obssPdLevel, std::get<0>(m_secondaryCcaSensitivityThresholds)));
 
    // HE PHY: 40 MHz HE PPDU in secondary80 channel (80 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 40 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level plus 3 dB
    VerifyCcaThreshold(
        m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
        CreateDummyHePpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
        WIFI_CHANLIST_SECONDARY80,
        std::max(m_obssPdLevel + dB_u{3.0}, std::get<1>(m_secondaryCcaSensitivityThresholds)));
 
    // HE PHY: 80 MHz HE PPDU in secondary80 channel (80 MHz) if power above the max between the
    // CCA sensitivity threshold corresponding to a 80 MHz PPDU that does not occupy the primary
    // 20 MHz and the OBSS-PD level plus 6 dB
    VerifyCcaThreshold(
        m_phy->GetPhyEntity(WIFI_MOD_CLASS_HE),
        CreateDummyHePpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
        WIFI_CHANLIST_SECONDARY80,
        std::max(m_obssPdLevel + dB_u{6.0}, std::get<2>(m_secondaryCcaSensitivityThresholds)));
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // EHT PHY: any signal in primary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       nullptr,
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaEdThreshold);
 
    // EHT PHY: any signal in secondary channel (20 MHz) if power above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY,
                       m_CcaEdThreshold);
 
    // EHT PHY: any signal in secondary40 channel (40 MHz) if power in any 20 MHz subchannel
    // above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY40,
                       m_CcaEdThreshold);
 
    // EHT PHY: any signal in secondary80 channel (80 MHz) if power in any 20 MHz subchannel
    // above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY80,
                       m_CcaEdThreshold);
 
    // EHT PHY: any signal in secondary160 channel (160 MHz) if power in any 20 MHz subchannel
    // above CCA-ED threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       nullptr,
                       WIFI_CHANLIST_SECONDARY160,
                       m_CcaEdThreshold);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
    // EHT PHY: 20 MHz EHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
    // EHT PHY: 40 MHz EHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // EHT PHY: 80 MHz EHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // EHT PHY: 160 MHz EHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{160}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    // EHT PHY: 320 MHz EHT PPDU in primary channel (20 MHz) if power in primary above CCA
    // sensitivity threshold
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{320}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_PRIMARY,
                       m_CcaSensitivity);
 
    //-----------------------------------------------------------------------------------------------------------------------------------
 
    // EHT PHY: 20 MHz EHT PPDU in secondary channel (20 MHz) if power above the max between the
    // CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 20 MHz EHT PPDU in secondary40 channel (40 MHz) if power above the max between
    // the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{20}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY40,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 40 MHz EHT PPDU in secondary40 channel (40 MHz) if power above the max between
    // the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY40,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 20 MHz EHT PPDU in secondary80 channel (80 MHz) if power above the max between
    // the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 40 MHz EHT PPDU in secondary80 channel (80 MHz) if power above the max between
    // the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{40}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 80 MHz EHT PPDU in secondary80 channel (80 MHz) if power above the max between
    // the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(MHz_u{80}, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY80,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
 
    // EHT PHY: 160 MHz EHT PPDU in secondary160 channel (160 MHz) if power above the max
    // between the CCA sensitivity threshold for Per 20MHz check and the OBSS-PD level
    VerifyCcaThreshold(m_phy->GetPhyEntity(WIFI_MOD_CLASS_EHT),
                       CreateDummyEhtPpdu(160, m_phy->GetOperatingChannel()),
                       WIFI_CHANLIST_SECONDARY160,
                       std::max(m_obssPdLevel, m_per20CcaSensitivity));
}
 
void
WifiPhyCcaThresholdsTest::DoRun()
{
    // default attributes
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-82};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-72}, dBm_u{-72}, dBm_u{-69});
    m_obssPdLevel = dBm_u{-82};
    m_per20CcaSensitivity = dBm_u{-72.0};
    RunOne();
 
    // default attributes with OBSS-PD level set to -80 dBm
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-82};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-72}, dBm_u{-72}, dBm_u{-69});
    m_obssPdLevel = dBm_u{-80};
    m_per20CcaSensitivity = dBm_u{-72.0};
    RunOne();
 
    // default attributes with OBSS-PD level set to -70 dBm
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-82};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-72}, dBm_u{-72}, dBm_u{-69});
    m_obssPdLevel = dBm_u{-70};
    m_per20CcaSensitivity = dBm_u{-72.0};
    RunOne();
 
    // CCA-ED set to -65 dBm
    m_CcaEdThreshold = dBm_u{-65};
    m_CcaSensitivity = dBm_u{-82};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-72}, dBm_u{-72}, dBm_u{-69});
    m_obssPdLevel = dBm_u{-82};
    m_per20CcaSensitivity = dBm_u{-72.0};
    RunOne();
 
    // CCA sensitivity for signals in primary set to -75 dBm
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-75};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-72}, dBm_u{-72}, dBm_u{-69});
    m_obssPdLevel = dBm_u{-82};
    m_per20CcaSensitivity = dBm_u{-72.0};
    RunOne();
 
    // custom CCA sensitivities for signals not in primary
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-72};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-70}, dBm_u{-70}, dBm_u{-70});
    m_obssPdLevel = dBm_u{-82};
    m_per20CcaSensitivity = -75.0;
    RunOne();
 
    // custom CCA sensitivities for signals not in primary with OBSS-PD level set to -80 dBm
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-72};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-70}, dBm_u{-70}, dBm_u{-70});
    m_obssPdLevel = dBm_u{-80};
    m_per20CcaSensitivity = -69.0;
    RunOne();
 
    // custom CCA sensitivities for signals not in primary with OBSS-PD level set to -70 dBm
    m_CcaEdThreshold = dBm_u{-62};
    m_CcaSensitivity = dBm_u{-72};
    m_secondaryCcaSensitivityThresholds = std::make_tuple(dBm_u{-70}, dBm_u{-70}, dBm_u{-70});
    m_obssPdLevel = dBm_u{-70};
    m_per20CcaSensitivity = -66.0;
    RunOne();
 
    Simulator::Destroy();
}
 
/**
 * @ingroup wifi-test
 * @ingroup tests
 *
 * @brief PHY listener for CCA tests
 */
class CcaTestPhyListener : public ns3::WifiPhyListener
{
  public:
    CcaTestPhyListener() = default;
 
    void NotifyRxStart(Time duration) override
    {
        NS_LOG_FUNCTION(this << duration);
    }
 
    void NotifyRxEndOk() override
    {
        NS_LOG_FUNCTION(this);
    }
 
    void NotifyRxEndError(const WifiTxVector& txVector) override
    {
        NS_LOG_FUNCTION(this << txVector);
    }
 
    void NotifyTxStart(Time duration, dBm_u txPower) override
    {
        NS_LOG_FUNCTION(this << duration << txPower);
    }
 
    void NotifyCcaBusyStart(Time duration,
                            WifiChannelListType channelType,
                            const std::vector<Time>& per20MhzDurations) override
    {
        NS_LOG_FUNCTION(this << duration << channelType << per20MhzDurations.size());
        NS_ASSERT(duration.IsPositive());
        const auto now = Simulator::Now();
        if (m_startCcaBusy.IsZero())
        {
            m_startCcaBusy = now;
        }
        m_endCcaBusy = now + duration;
        m_lastCcaBusyChannelType = channelType;
        m_lastPer20MhzCcaBusyDurations = per20MhzDurations;
        ++m_notifications;
    }
 
    void NotifySwitchingStart(Time duration) override
    {
    }
 
    void NotifySleep() override
    {
    }
 
    void NotifyOff() override
    {
    }
 
    void NotifyWakeup() override
    {
    }
 
    void NotifyOn() override
    {
    }
 
    /**
     * Reset function
     */
    void Reset()
    {
        m_notifications = 0;
        m_startCcaBusy = Time();
        m_endCcaBusy = Time();
        m_lastCcaBusyChannelType = WIFI_CHANLIST_PRIMARY;
        m_lastPer20MhzCcaBusyDurations.clear();
    }
 
    std::size_t m_notifications{0}; ///< Number of CCA notifications
    Time m_startCcaBusy{};          ///< Start of the CCA-BUSY duration
    Time m_endCcaBusy{};            ///< End of the CCA-BUSY duration
    WifiChannelListType m_lastCcaBusyChannelType{
        WIFI_CHANLIST_PRIMARY}; ///< Channel type indication for the last CCA-BUSY notification
    std::vector<Time>
        m_lastPer20MhzCcaBusyDurations{}; ///< End of the CCA-BUSY durations per 20 MHz
};
 
/**
 * @ingroup wifi-test
 * @ingroup tests
 *
 * @brief Test CCA_BUSY indication provided by the PHY
 *
 * Many scenarios are being tested, where one or more PPDUs are being received and/or one or more
 * (non-wifi) signals are being received. The tests verify the PHY states at different time
 * points, and the CCA_BUSY indication at various point in time (amount of notifications, start and
 * end of CCA_BUSY periods and per-20MHz bitmaps). The tests are run for all possible channel width
 * and PPDU/signal widths combinations.
 */
class WifiPhyCcaIndicationTest : public TestCase
{
  public:
    /**
     * Constructor
     *
     * @param standard the standard to use for the test
     */
    WifiPhyCcaIndicationTest(WifiStandard standard);
 
  private:
    void DoSetup() override;
    void DoRun() override;
    void DoTeardown() override;
 
    /**
     * Send a HE or EHT SU PPDU
     * @param txPower the transmit power
     * @param frequency the center frequency the transmitter is operating on
     * @param bandwidth the bandwidth to use for the transmission
     */
    void SendSuPpdu(dBm_u txPower, MHz_u frequency, MHz_u bandwidth);
 
    /**
     * Start to generate a signal
     * @param signalGenerator the signal generator to use
     * @param txPower the transmit power
     * @param frequency the center frequency of the signal to send
     * @param bandwidth the bandwidth of the signal to send
     * @param duration the duration of the signal
     */
    void StartSignal(Ptr<WaveformGenerator> signalGenerator,
                     dBm_u txPower,
                     MHz_u frequency,
                     MHz_u bandwidth,
                     Time duration);
    /**
     * Stop to generate a signal
     * @param signalGenerator the signal generator to use
     */
    void StopSignal(Ptr<WaveformGenerator> signalGenerator);
 
    /**
     * Update the CCA threshold of the PHY
     * @param ccaThreshold the new CCA threshold value to be set
     */
    void UpdateCcaThreshold(dBm_u ccaThreshold);
 
    /**
     * Check the PHY state
     * @param scenario the scenario under test
     * @param expectedState the expected state of the PHY
     */
    void CheckPhyState(const std::string& scenario, WifiPhyState expectedState);
    /// @copydoc CheckPhyState
    void DoCheckPhyState(const std::string& scenario, WifiPhyState expectedState);
 
    /**
     * Check the CCA-BUSY notifications
     * @param scenario the scenario under test
     * @param expectedCcaNotifications the expected number of CCA_BUSY notifications
     * @param expectedStartTime the expected CCA-BUSY start time
     * @param expectedEndTime the expected CCA-BUSY end time
     * @param expectedChannelType the expected channel type
     * @param expectedPer20MhzDurations the expected per-20 MHz CCA-BUSY durations
     */
    void CheckCcaBusyNotifications(const std::string& scenario,
                                   std::size_t expectedCcaNotifications,
                                   Time expectedStartTime,
                                   Time expectedEndTime,
                                   WifiChannelListType expectedChannelType,
                                   const std::vector<Time>& expectedPer20MhzDurations);
    /// @copydoc CheckCcaBusyNotifications
    void DoCheckCcaBusyNotifications(const std::string& scenario,
                                     std::size_t expectedCcaNotifications,
                                     Time expectedStartTime,
                                     Time expectedEndTime,
                                     WifiChannelListType expectedChannelType,
                                     const std::vector<Time>& expectedPer20MhzDurations);
    /**
     * Log scenario description
     *
     * @param scenario the scenario description to add to log
     */
    void LogScenario(const std::string& scenario) const;
 
    /**
     * structure that holds information to generate signals
     */
    struct TxSignalInfo
    {
        dBm_u power;      //!< transmit power to use
        Time startTime;   //!< time at which transmission will be started
        Time duration;    //!< the duration of the transmission
        MHz_u centerFreq; //!< center frequency to use
        MHz_u bandwidth;  //!< bandwidth to use
    };
 
    /**
     * structure that holds information to generate PPDUs
     */
    struct TxPpduInfo
    {
        dBm_u power;      //!< transmit power to use
        Time startTime;   //!< time at which transmission will be started
        MHz_u centerFreq; //!< center frequency to use
        MHz_u bandwidth;  //!< bandwidth to use
    };
 
    /**
     * structure that holds information to perform PHY state check
     */
    struct StateCheckPoint
    {
        Time timePoint; //!< time at which the check will performed
        WifiPhyState expectedPhyState{WifiPhyState::IDLE}; //!< expected PHY state
    };
 
    /**
     * structure that holds information to perform CCA check
     */
    struct CcaCheckPoint
    {
        Time timePoint;                          //!< time at which the check will performed
        std::size_t expectedCcaNotifications{0}; //!< expected number of CCA_BUSY notifications
        Time expectedCcaStartTime;               //!< expected CCA_BUSY start time
        Time expectedCcaEndTime;                 //!< expected CCA_BUSY end time
        WifiChannelListType expectedChannelListType{
            WIFI_CHANLIST_PRIMARY};                  //!< expected channel list type
        std::vector<Time> expectedPer20MhzDurations; //!< expected per-20 MHz CCA duration
    };
 
    /**
     * structure that holds information to perform CCA threshold update
     */
    struct CcaThresholdUpdatePoint
    {
        Time timePoint;     //!< time at which the update will be performed
        dBm_u ccaThreshold; //!< new CCA threshold value to be set
    };
 
    /**
     * Schedule test to perform.
     * @param delay the reference delay to schedule the events
     * @param scenario description of the scenario to test
     * @param generatedSignals the vector of signals to be generated
     * @param generatedPpdus the vector of PPDUs to be generated
     * @param stateCheckpoints the vector of PHY state checks
     * @param ccaCheckpoints the vector of PHY CCA checks
     * @param ccaThresholdUpdates the vector of CCA threshold updates
     */
    void ScheduleTest(Time delay,
                      const std::string& scenario,
                      const std::vector<TxSignalInfo>& generatedSignals,
                      const std::vector<TxPpduInfo>& generatedPpdus,
                      const std::vector<StateCheckPoint>& stateCheckpoints,
                      const std::vector<CcaCheckPoint>& ccaCheckpoints,
                      const std::vector<CcaThresholdUpdatePoint>& ccaThresholdUpdates = {});
 
    /**
     * Reset function
     */
    void Reset();
 
    /**
     * Reset the expected Per 20 MHz CCA durations
     */
    void ResetExpectedPer20MhzCcaBusyDurations();
 
    /**
     * Run one function
     */
    void RunOne();
 
    WifiStandard m_standard; ///< The standard to use for the test
 
    Ptr<SpectrumWifiPhy> m_rxPhy; ///< PHY object of the receiver
    Ptr<SpectrumWifiPhy> m_uxPhy; ///< PHY object of the transmitter
 
    std::vector<Ptr<WaveformGenerator>> m_signalGenerators; ///< Generators of non-wifi signals
    std::size_t m_numSignalGenerators; ///< The number of non-wifi signals generators needed for
                                       ///< the test
 
    std::shared_ptr<CcaTestPhyListener>
        m_rxPhyStateListener; ///< Listener for PHY state transitions
 
    MHz_u m_frequency;    ///< Operating frequency
    MHz_u m_channelWidth; ///< Operating channel width
 
    std::vector<std::vector<Time>>
        m_expectedPer20MhzCcaBusyDurations{}; ///< expected Per 20Mhz CCA durations per check
};
 
WifiPhyCcaIndicationTest::WifiPhyCcaIndicationTest(WifiStandard standard)
    : TestCase("Wi-Fi PHY CCA indication test for " + ((standard == WIFI_STANDARD_80211ax)
                                                           ? std::string("802.11ax")
                                                           : std::string("802.11be"))),
      m_standard{standard},
      m_numSignalGenerators{2},
      m_frequency{P20_CENTER_FREQUENCY},
      m_channelWidth{MHz_u{20}}
{
}
 
void
WifiPhyCcaIndicationTest::StartSignal(Ptr<WaveformGenerator> signalGenerator,
                                      dBm_u txPower,
                                      MHz_u frequency,
                                      MHz_u bandwidth,
                                      Time duration)
{
    NS_LOG_FUNCTION(this << signalGenerator << txPower << frequency << bandwidth << duration);
 
    BandInfo bandInfo;
    bandInfo.fc = MHzToHz(frequency);
    bandInfo.fl = bandInfo.fc - MHzToHz(bandwidth / 2);
    bandInfo.fh = bandInfo.fc + MHzToHz(bandwidth / 2);
    Bands bands;
    bands.push_back(bandInfo);
 
    Ptr<SpectrumModel> spectrumSignal = Create<SpectrumModel>(bands);
    Ptr<SpectrumValue> signalPsd = Create<SpectrumValue>(spectrumSignal);
    *signalPsd = DbmToW(txPower) / MHzToHz(bandwidth);
 
    signalGenerator->SetTxPowerSpectralDensity(signalPsd);
    signalGenerator->SetPeriod(duration);
    signalGenerator->Start();
    Simulator::Schedule(duration, &WifiPhyCcaIndicationTest::StopSignal, this, signalGenerator);
}
 
void
WifiPhyCcaIndicationTest::StopSignal(Ptr<WaveformGenerator> signalGenerator)
{
    NS_LOG_FUNCTION(this << signalGenerator);
    signalGenerator->Stop();
}
 
void
WifiPhyCcaIndicationTest::SendSuPpdu(dBm_u txPower, MHz_u frequency, MHz_u bandwidth)
{
    NS_LOG_FUNCTION(this << txPower);
 
    auto channelNum =
        WifiPhyOperatingChannel::FindFirst(0, frequency, bandwidth, m_standard, WIFI_PHY_BAND_6GHZ)
            ->number;
    m_uxPhy->SetOperatingChannel(
        WifiPhy::ChannelTuple{channelNum, bandwidth, WIFI_PHY_BAND_6GHZ, 0});
 
    const auto mcs =
        (m_standard == WIFI_STANDARD_80211ax) ? HePhy::GetHeMcs0() : EhtPhy::GetEhtMcs0();
    const auto preamble =
        (m_standard == WIFI_STANDARD_80211ax) ? WIFI_PREAMBLE_HE_SU : WIFI_PREAMBLE_EHT_MU;
    WifiTxVector
        txVector{mcs, WIFI_MIN_TX_PWR_LEVEL, preamble, NanoSeconds(800), 1, 1, 0, bandwidth, false};
    Ptr<Packet> pkt = Create<Packet>(1000);
    WifiMacHeader hdr;
    hdr.SetType(WIFI_MAC_QOSDATA);
    hdr.SetQosTid(0);
    Ptr<WifiPsdu> psdu = Create<WifiPsdu>(pkt, hdr);
 
    m_uxPhy->SetTxPowerStart(txPower);
    m_uxPhy->SetTxPowerEnd(txPower);
 
    m_uxPhy->Send(psdu, txVector);
}
 
void
WifiPhyCcaIndicationTest::UpdateCcaThreshold(dBm_u ccaThreshold)
{
    NS_LOG_FUNCTION(this << ccaThreshold);
    m_rxPhy->SetCcaEdThreshold(ccaThreshold);
}
 
void
WifiPhyCcaIndicationTest::CheckPhyState(const std::string& scenario, WifiPhyState expectedState)
{
    NS_LOG_FUNCTION(this << expectedState);
    // This is needed to make sure PHY state will be checked as the last event if a state change
    // occurred at the exact same time as the check
    Simulator::ScheduleNow(&WifiPhyCcaIndicationTest::DoCheckPhyState,
                           this,
                           scenario,
                           expectedState);
}
 
void
WifiPhyCcaIndicationTest::DoCheckPhyState(const std::string& scenario, WifiPhyState expectedState)
{
    NS_LOG_FUNCTION(this << expectedState);
    WifiPhyState currentState;
    PointerValue ptr;
    m_rxPhy->GetAttribute("State", ptr);
    Ptr<WifiPhyStateHelper> state = DynamicCast<WifiPhyStateHelper>(ptr.Get<WifiPhyStateHelper>());
    currentState = state->GetState();
    NS_TEST_ASSERT_MSG_EQ(currentState,
                          expectedState,
                          "PHY State " << currentState << " does not match expected state "
                                       << expectedState << " at " << Simulator::Now()
                                       << " for scenario: " << scenario << " (bw=" << m_channelWidth
                                       << ")");
}
 
void
WifiPhyCcaIndicationTest::CheckCcaBusyNotifications(
    const std::string& scenario,
    std::size_t expectedCcaNotifications,
    Time expectedStartTime,
    Time expectedEndTime,
    WifiChannelListType expectedChannelType,
    const std::vector<Time>& expectedPer20MhzDurations)
{
    Simulator::ScheduleNow(&WifiPhyCcaIndicationTest::DoCheckCcaBusyNotifications,
                           this,
                           scenario,
                           expectedCcaNotifications,
                           expectedStartTime,
                           expectedEndTime,
                           expectedChannelType,
                           expectedPer20MhzDurations);
}
 
void
WifiPhyCcaIndicationTest::DoCheckCcaBusyNotifications(
    const std::string& scenario,
    std::size_t expectedCcaNotifications,
    Time expectedStartTime,
    Time expectedEndTime,
    WifiChannelListType expectedChannelType,
    const std::vector<Time>& expectedPer20MhzDurations)
{
    auto printPer20Bitmap = [](const std::vector<Time>& v) -> std::string {
        if (v.empty())
        {
            return "";
        }
        std::stringstream ss;
        for (const auto& t : v)
        {
            ss << t << " ";
        }
        return ss.str();
    };
    NS_LOG_FUNCTION(this << expectedCcaNotifications << expectedStartTime << expectedEndTime
                         << expectedChannelType << printPer20Bitmap(expectedPer20MhzDurations));
    NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_notifications,
                          expectedCcaNotifications,
                          "Number of CCA busy notifications "
                              << m_rxPhyStateListener->m_notifications
                              << " does not match expected number " << expectedCcaNotifications
                              << " at " << Simulator::Now() << " for scenario: " << scenario
                              << " (bw=" << m_channelWidth << ")");
    NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_startCcaBusy,
                          expectedStartTime,
                          "PHY CCA start time " << m_rxPhyStateListener->m_startCcaBusy
                                                << " does not match expected time "
                                                << expectedStartTime << " at " << Simulator::Now()
                                                << " for scenario: " << scenario
                                                << " (bw=" << m_channelWidth << ")");
    NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_endCcaBusy,
                          expectedEndTime,
                          "PHY CCA end time " << m_rxPhyStateListener->m_endCcaBusy
                                              << " does not match expected time " << expectedEndTime
                                              << " at " << Simulator::Now() << " for scenario: "
                                              << scenario << " (bw=" << m_channelWidth << ")");
    NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_lastCcaBusyChannelType,
                          expectedChannelType,
                          "PHY CCA-BUSY for " << m_rxPhyStateListener->m_lastCcaBusyChannelType
                                              << " does not match expected channel type "
                                              << expectedChannelType << " at " << Simulator::Now()
                                              << " for scenario: " << scenario
                                              << " (bw=" << m_channelWidth << ")");
    NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_lastPer20MhzCcaBusyDurations.size(),
                          expectedPer20MhzDurations.size(),
                          "PHY CCA-BUSY per-20 MHz durations does not match expected vector"
                              << " at " << Simulator::Now() << " for scenario: " << scenario
                              << " (bw=" << m_channelWidth << ")");
    for (std::size_t i = 0; i < expectedPer20MhzDurations.size(); ++i)
    {
        NS_TEST_ASSERT_MSG_EQ(m_rxPhyStateListener->m_lastPer20MhzCcaBusyDurations.at(i),
                              expectedPer20MhzDurations.at(i),
                              "PHY CCA-BUSY per-20 MHz duration at index "
                                  << i << " does not match expected duration at "
                                  << Simulator::Now() << " for scenario: " << scenario
                                  << " (bw=" << m_channelWidth << ")");
    }
}
 
void
WifiPhyCcaIndicationTest::LogScenario(const std::string& scenario) const
{
    NS_LOG_INFO(scenario);
}
 
void
WifiPhyCcaIndicationTest::ScheduleTest(
    Time delay,
    const std::string& scenario,
    const std::vector<TxSignalInfo>& generatedSignals,
    const std::vector<TxPpduInfo>& generatedPpdus,
    const std::vector<StateCheckPoint>& stateCheckpoints,
    const std::vector<CcaCheckPoint>& ccaCheckpoints,
    const std::vector<CcaThresholdUpdatePoint>& ccaThresholdUpdates)
{
    Simulator::Schedule(delay, &WifiPhyCcaIndicationTest::LogScenario, this, scenario);
 
    Simulator::Schedule(delay, &WifiPhyCcaIndicationTest::Reset, this);
 
    for (const auto& generatedPpdu : generatedPpdus)
    {
        Simulator::Schedule(delay + generatedPpdu.startTime,
                            &WifiPhyCcaIndicationTest::SendSuPpdu,
                            this,
                            generatedPpdu.power,
                            generatedPpdu.centerFreq,
                            generatedPpdu.bandwidth);
    }
 
    std::size_t index = 0;
    for (const auto& generatedSignal : generatedSignals)
    {
        Simulator::Schedule(delay + generatedSignal.startTime,
                            &WifiPhyCcaIndicationTest::StartSignal,
                            this,
                            m_signalGenerators.at(index++),
                            generatedSignal.power,
                            generatedSignal.centerFreq,
                            generatedSignal.bandwidth,
                            generatedSignal.duration);
    }
 
    if (ccaCheckpoints.empty())
    {
        Simulator::Schedule(delay + (testStep / 2),
                            &WifiPhyCcaIndicationTest::CheckCcaBusyNotifications,
                            this,
                            scenario,
                            0,
                            Time(),
                            Time(),
                            WIFI_CHANLIST_PRIMARY,
                            std::vector<Time>{});
    }
    else
    {
        for (const auto& checkpoint : ccaCheckpoints)
        {
            Simulator::Schedule(delay + checkpoint.timePoint,
                                &WifiPhyCcaIndicationTest::CheckCcaBusyNotifications,
                                this,
                                scenario,
                                checkpoint.expectedCcaNotifications,
                                Simulator::Now() + delay + checkpoint.expectedCcaStartTime,
                                Simulator::Now() + delay + checkpoint.expectedCcaEndTime,
                                checkpoint.expectedChannelListType,
                                checkpoint.expectedPer20MhzDurations);
        }
    }
 
    for (const auto& checkpoint : stateCheckpoints)
    {
        Simulator::Schedule(delay + checkpoint.timePoint,
                            &WifiPhyCcaIndicationTest::CheckPhyState,
                            this,
                            scenario,
                            checkpoint.expectedPhyState);
    }
 
    for (const auto& ccaThresholdUpdate : ccaThresholdUpdates)
    {
        Simulator::Schedule(delay + ccaThresholdUpdate.timePoint,
                            &WifiPhyCcaIndicationTest::UpdateCcaThreshold,
                            this,
                            ccaThresholdUpdate.ccaThreshold);
    }
}
 
void
WifiPhyCcaIndicationTest::Reset()
{
    NS_LOG_FUNCTION(this);
    m_rxPhy->ConfigureStandard(m_standard); // make sure to clear PHY states
    m_rxPhyStateListener->Reset();
    UpdateCcaThreshold(dBm_u{-62}); // restore default CCA threshold
}
 
void
WifiPhyCcaIndicationTest::ResetExpectedPer20MhzCcaBusyDurations()
{
    m_expectedPer20MhzCcaBusyDurations.clear();
    switch (static_cast<uint16_t>(m_channelWidth))
    {
    case 20:
    default:
        // no Per-20 MHz CCA
        m_expectedPer20MhzCcaBusyDurations.emplace_back();
        m_expectedPer20MhzCcaBusyDurations.emplace_back();
        break;
    case 40:
        m_expectedPer20MhzCcaBusyDurations.push_back({MicroSeconds(0), MicroSeconds(0)});
        m_expectedPer20MhzCcaBusyDurations.push_back({MicroSeconds(0), MicroSeconds(0)});
        break;
    case 80:
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        break;
    case 160:
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        break;
    case 320:
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        m_expectedPer20MhzCcaBusyDurations.push_back({
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
            MicroSeconds(0),
        });
        break;
    }
}
 
void
WifiPhyCcaIndicationTest::DoSetup()
{
    // WifiHelper::EnableLogComponents ();
    // LogComponentEnable("WifiPhyCcaTest", LOG_LEVEL_ALL);
 
    Ptr<MultiModelSpectrumChannel> spectrumChannel = CreateObject<MultiModelSpectrumChannel>();
 
    Ptr<Node> rxNode = CreateObject<Node>();
    Ptr<WifiNetDevice> rxDev = CreateObject<WifiNetDevice>();
    rxDev->SetStandard(m_standard);
    auto vhtConfiguration = CreateObject<VhtConfiguration>();
    rxDev->SetVhtConfiguration(vhtConfiguration);
    if (m_standard > WIFI_STANDARD_80211ax)
    {
        auto ehtConfiguration = CreateObject<EhtConfiguration>();
        rxDev->SetEhtConfiguration(ehtConfiguration);
    }
    m_rxPhy = CreateObject<SpectrumWifiPhy>();
    m_rxPhyStateListener = std::make_unique<CcaTestPhyListener>();
    m_rxPhy->RegisterListener(m_rxPhyStateListener);
    Ptr<InterferenceHelper> rxInterferenceHelper = CreateObject<InterferenceHelper>();
    m_rxPhy->SetInterferenceHelper(rxInterferenceHelper);
    Ptr<ErrorRateModel> rxErrorModel = CreateObject<NistErrorRateModel>();
    m_rxPhy->SetErrorRateModel(rxErrorModel);
    Ptr<ThresholdPreambleDetectionModel> preambleDetectionModel =
        CreateObject<ThresholdPreambleDetectionModel>();
    m_rxPhy->SetPreambleDetectionModel(preambleDetectionModel);
    m_rxPhy->AddChannel(spectrumChannel);
    m_rxPhy->ConfigureStandard(m_standard);
    m_rxPhy->SetDevice(rxDev);
    rxDev->SetPhy(m_rxPhy);
    rxNode->AddDevice(rxDev);
 
    Ptr<Node> txNode = CreateObject<Node>();
    Ptr<WifiNetDevice> txDev = CreateObject<WifiNetDevice>();
    m_uxPhy = CreateObject<SpectrumWifiPhy>();
    m_uxPhy->SetAttribute("ChannelSwitchDelay", TimeValue(Seconds(0)));
    Ptr<InterferenceHelper> txInterferenceHelper = CreateObject<InterferenceHelper>();
    m_uxPhy->SetInterferenceHelper(txInterferenceHelper);
    Ptr<ErrorRateModel> txErrorModel = CreateObject<NistErrorRateModel>();
    m_uxPhy->SetErrorRateModel(txErrorModel);
    m_uxPhy->AddChannel(spectrumChannel);
    m_uxPhy->ConfigureStandard(m_standard);
    m_uxPhy->SetDevice(txDev);
    txDev->SetPhy(m_uxPhy);
    txNode->AddDevice(txDev);
 
    for (std::size_t i = 0; i < m_numSignalGenerators; ++i)
    {
        Ptr<Node> signalGeneratorNode = CreateObject<Node>();
        Ptr<NonCommunicatingNetDevice> signalGeneratorDev =
            CreateObject<NonCommunicatingNetDevice>();
        Ptr<WaveformGenerator> signalGenerator = CreateObject<WaveformGenerator>();
        signalGenerator->SetDevice(signalGeneratorDev);
        signalGenerator->SetChannel(spectrumChannel);
        signalGenerator->SetDutyCycle(1);
        signalGeneratorNode->AddDevice(signalGeneratorDev);
        m_signalGenerators.push_back(signalGenerator);
    }
}
 
void
WifiPhyCcaIndicationTest::RunOne()
{
    RngSeedManager::SetSeed(1);
    RngSeedManager::SetRun(1);
    int64_t streamNumber = 0;
    m_rxPhy->AssignStreams(streamNumber);
    m_uxPhy->AssignStreams(streamNumber);
 
    auto channelNum = WifiPhyOperatingChannel::FindFirst(0,
                                                         m_frequency,
                                                         m_channelWidth,
                                                         m_standard,
                                                         WIFI_PHY_BAND_6GHZ)
                          ->number;
 
    m_rxPhy->SetOperatingChannel(
        WifiPhy::ChannelTuple{channelNum, m_channelWidth, WIFI_PHY_BAND_6GHZ, 0});
    m_uxPhy->SetOperatingChannel(
        WifiPhy::ChannelTuple{channelNum, m_channelWidth, WIFI_PHY_BAND_6GHZ, 0});
 
    const auto phyHeaderDuration =
        (m_standard == WIFI_STANDARD_80211ax) ? hePhyHeaderDuration : ehtPhyHeaderDuration;
 
    const auto& ppduDurations =
        (m_standard == WIFI_STANDARD_80211ax) ? hePpduDurations : ehtPpduDurations;
 
    Time delay{Seconds(1.0)};
    ResetExpectedPer20MhzCcaBusyDurations();
 
    const auto tx1Start = MicroSeconds(0);
 
    const auto txEndSignal1 = MicroSeconds(100);
    const auto txDuration1 = txEndSignal1 - tx1Start;
 
    const auto tx2Start = MicroSeconds(50);
 
    const auto txEndSignal2 = MicroSeconds(150);
    const auto txDuration2 = txEndSignal2 - tx2Start;
 
    const auto txDiff = tx2Start - tx1Start;
 
    const auto thresholdUpdateTime = MicroSeconds(75);
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state stays IDLE and no CCA-BUSY indication is reported when a signal below the
    // energy detection threshold occupies P20
    ScheduleTest(
        delay,
        "Reception of a signal that occupies P20 below ED threshold",
        {{dBm_u{-65}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {},
        {
            {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
            {txEndSignal1 - smallDelta,
             WifiPhyState::IDLE}, // IDLE just before the transmission ends
            {txEndSignal1 + smallDelta, WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {});
    delay += testStep;
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state is CCA-BUSY as long as a 20 MHz signal above the energy detection threshold
    // occupies P20
    if (m_channelWidth > MHz_u{20})
    {
        m_expectedPer20MhzCcaBusyDurations.at(0).at(0) = txDuration1;
    }
    ScheduleTest(
        delay,
        "Reception of signal that occupies P20 above ED threshold",
        {{dBm_u{-60}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {},
        {
            {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
            {txEndSignal1 - smallDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
            {txEndSignal1 + smallDelta, WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {{txEndSignal1 - smallDelta,
          1,
          tx1Start,
          txEndSignal1,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(0)}});
    delay += testStep;
    ResetExpectedPer20MhzCcaBusyDurations();
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state is CCA-BUSY as long as the sum of 20 MHz signals occupying P20 is above the
    // energy detection threshold
    if (m_channelWidth > MHz_u{20})
    {
        m_expectedPer20MhzCcaBusyDurations.at(0).at(0) = tx2Start - tx1Start;
    }
    ScheduleTest(
        delay,
        "Reception of two 20 MHz signals that occupies P20 below ED threshold with "
        "sum above ED threshold",
        {{dBm_u{-64}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}},
         {dBm_u{-65}, tx2Start, txDuration2, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {},
        {
            {tx2Start + aCcaTimeWithDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
            {txEndSignal1 - smallDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
            {txEndSignal1 + smallDelta, WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {{txEndSignal1 - smallDelta,
          1,
          tx2Start,
          txEndSignal1,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(0)}});
    delay += testStep;
    ResetExpectedPer20MhzCcaBusyDurations();
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state stays IDLE when a 20 MHz PPDU with received power below the
    // corresponding CCA sensitivity threshold occupies P20
    ScheduleTest(delay,
                 "Reception of a 20 MHz PPDU that occupies P20 below CCA sensitivity threshold",
                 {},
                 {{dBm_u{-85}, tx1Start, P20_CENTER_FREQUENCY, MHz_u{20}}},
                 {
                     {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                     {ppduDurations.at(MHz_u{20}) - smallDelta,
                      WifiPhyState::IDLE}, // IDLE just before the transmission ends
                     {ppduDurations.at(MHz_u{20}) + smallDelta,
                      WifiPhyState::IDLE} // IDLE just after the transmission ends
                 },
                 {});
    delay += testStep;
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state transitions to CCA-BUSY when an PPDU with received power above the CCA
    // sensitivity threshold occupies P20. The per20Bitmap should indicate idle on the primary 20
    // MHz subchannel because received power is below -72 dBm (27.3.20.6.5).
    ScheduleTest(
        delay,
        "Reception of a 20 MHz PPDU that occupies P20 above CCA sensitivity threshold",
        {},
        {{dBm_u{-80}, tx1Start, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {
            {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
            {ppduDurations.at(MHz_u{20}) - smallDelta,
             WifiPhyState::RX}, // RX just before the transmission ends
            {ppduDurations.at(MHz_u{20}) + smallDelta,
             WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {{aCcaTimeWithDelta,
          1,
          aCcaTime,
          legacyPhyHeaderDuration - aCcaTime,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(0)}});
    delay += testStep;
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state stays IDLE when a 40 MHz PPDU with received power below the CCA
    // sensitivity threshold occupies P40
    ScheduleTest(delay,
                 "Reception of a 40 MHz PPDU that occupies P20 below CCA sensitivity threshold",
                 {},
                 {{dBm_u{-80}, tx1Start, P40_CENTER_FREQUENCY, MHz_u{40}}},
                 {
                     {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                     {ppduDurations.at(MHz_u{40}) - smallDelta,
                      WifiPhyState::IDLE}, // IDLE just before the transmission ends
                     {ppduDurations.at(MHz_u{40}) + smallDelta,
                      WifiPhyState::IDLE} // IDLE just after the transmission ends
                 },
                 {});
    delay += testStep;
 
    //----------------------------------------------------------------------------------------------------------------------------------
    // Verify PHY state transitions to CCA-BUSY when an PPDU with received power above the CCA
    // sensitivity threshold occupies P40. The per20Bitmap should indicate idle on the primary 20
    // MHz subchannel because received power is below -72 dBm (27.3.20.6.5).
    ScheduleTest(
        delay,
        "Reception of a 40 MHz PPDU that occupies P40 above CCA sensitivity threshold",
        {},
        {{dBm_u{-75}, tx1Start, P40_CENTER_FREQUENCY, MHz_u{40}}},
        {
            {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
            {ppduDurations.at(MHz_u{40}) - smallDelta,
             (m_channelWidth > MHz_u{20})
                 ? WifiPhyState::RX
                 : WifiPhyState::CCA_BUSY}, // RX or IDLE just before the transmission ends
            {ppduDurations.at(MHz_u{40}) + smallDelta,
             WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {{aCcaTimeWithDelta,
          1,
          aCcaTime,
          legacyPhyHeaderDuration - aCcaTime,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(0)}});
    delay += testStep;
 
    if (m_channelWidth > MHz_u{20})
    {
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported when a 20 MHz signal
        // below the energy detection threshold occupies S20
        ScheduleTest(delay,
                     "Reception of a 20 MHz signal that occupies S20 below ED threshold",
                     {{dBm_u{-65}, tx1Start, txDuration1, S20_CENTER_FREQUENCY, MHz_u{20}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is reported when a 20 MHz signal
        // above the energy detection threshold occupies S20
        m_expectedPer20MhzCcaBusyDurations.at(0).at(1) = txDuration1;
        ScheduleTest(delay,
                     "Reception of a 20 MHz signal that occupies S20 above ED threshold",
                     {{dBm_u{-60}, tx1Start, txDuration1, S20_CENTER_FREQUENCY, MHz_u{20}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {{txEndSignal1 - smallDelta,
                       1,
                       tx1Start,
                       txEndSignal1,
                       WIFI_CHANLIST_SECONDARY,
                       m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state is CCA-BUSY as long as a 40 MHz signal above the energy detection
        // threshold occupies P40
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(), 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies P40 above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, P40_CENTER_FREQUENCY, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the primary channel while the secondary channel was
        // already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(1) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S20 followed by the reception of another signal "
            "that occupies P20",
            {{dBm_u{-60}, tx1Start, txDuration1, S20_CENTER_FREQUENCY, MHz_u{20}},
             {dBm_u{-60}, tx2Start, txDuration2, P20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta,
                 WifiPhyState::CCA_BUSY}, // state of primary is CCA-BUSY after aCcaTimeWithDelta
                                          // that followed the second transmission
                {txEndSignal2 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY updates per-20 MHz CCA durations if a signal arrives on the secondary channel
        // while primary is CCA-BUSY
        m_expectedPer20MhzCcaBusyDurations.at(0).at(0) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = txDiff;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDuration2;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies P20 followed by the reception of another signal "
            "that occupies S20",
            {{dBm_u{-60}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}},
             {dBm_u{-60}, tx2Start, txDuration2, S20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta,
                 WifiPhyState::CCA_BUSY}, // state of primary is still CCA-BUSY after
                                          // aCcaTimeWithDelta that followed the second transmission
                {txEndSignal1 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the first transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the first transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE when a 20 MHz PPDU with received power below the CCA
        // sensitivity threshold occupies S40
        ScheduleTest(delay,
                     "Reception of a 20 MHz PPDU that occupies S20 below CCA sensitivity threshold",
                     {},
                     {{dBm_u{-75}, tx1Start, S20_CENTER_FREQUENCY, MHz_u{20}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{20}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{20}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is reported when a 20 MHz PPDU
        // with received power above the CCA sensitivity threshold occupies S20
        m_expectedPer20MhzCcaBusyDurations.at(0).at(1) = ppduDurations.at(MHz_u{20});
        ScheduleTest(delay,
                     "Reception of a 20 MHz PPDU that occupies S20 above CCA sensitivity threshold",
                     {},
                     {{dBm_u{-70}, tx1Start, S20_CENTER_FREQUENCY, MHz_u{20}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{20}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{20}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {{aCcaTimeWithDelta,
                       1,
                       tx1Start,
                       ppduDurations.at(MHz_u{20}),
                       WIFI_CHANLIST_SECONDARY,
                       m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is still reported as long as a signal
        // above the energy detection threshold occupies the S20 while a 40 MHz PPDU below the CCA
        // sensitivity threshold is received on P40.
        m_expectedPer20MhzCcaBusyDurations.at(0).at(1) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDiff - aCcaTime;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies S20 above ED threshold followed by a 40 "
            "MHz PPDU that occupies P40 below CCA sensitivity threshold",
            {{dBm_u{-60},
              tx1Start,
              txDuration1,
              S20_CENTER_FREQUENCY,
              MHz_u{20}}}, // signal on S20 above threshold
            {{dBm_u{-80},
              tx2Start,
              P40_CENTER_FREQUENCY,
              MHz_u{40}}}, // PPDU on P40 below threshold
            {
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // PHY state stays IDLE
            },
            {{tx2Start - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {txEndSignal1 - smallDelta,
              2,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
    }
 
    if (m_channelWidth > MHz_u{40})
    {
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported when a signal below
        // the energy detection threshold occupies S40
        ScheduleTest(
            delay,
            "Reception of a signal that occupies P20 below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S40_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the S40 as long as a signal above the energy detection
        // threshold occupies the first 20 MHz subchannel of the S40: 27.3.20.6.4: Any signal within
        // the secondary 40 MHz channel at or above a threshold of –59 dBm within a period of
        // aCcaTimeWithDelta after the signal arrives at the receiver’s antenna(s).
        m_expectedPer20MhzCcaBusyDurations.at(0).at(2) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the first subchannel of S40 above "
            "ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S40_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE for the S40 if a signal below the energy detection threshold
        // occupies the second 20 MHz subchannel of the S40
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of "
            "S40 below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S40_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the S40 as long as a signal above the energy detection
        // threshold occupies the second 20 MHz subchannel of the S40: 27.3.20.6.4: Any signal
        // within the secondary 40 MHz channel at or above a threshold of –59 dBm within a period of
        // aCcaTimeWithDelta after the signal arrives at the receiver's antenna(s).
        m_expectedPer20MhzCcaBusyDurations.at(0).at(3) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S40 "
            "above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S40_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE for the S40 if a signal below the energy detection threshold
        // occupies S40
        ScheduleTest(delay,
                     "Reception of a 40 MHz signal that occupies S40 below ED threshold",
                     {{dBm_u{-60}, tx1Start, txDuration1, S40_CENTER_FREQUENCY, MHz_u{40}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the S40 as long as a signal above the energy detection
        // threshold occupies S40: 27.3.20.6.4: Any signal within the secondary 40 MHz channel at or
        // above a threshold of –59 dBm within a period of aCcaTimeWithDelta after the signal
        // arrives at the receiver's antenna(s).
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 2, 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S40 above ED "
            "threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S40_CENTER_FREQUENCY, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state is CCA-BUSY as long as a 80 MHz signal above the energy detection
        // threshold occupies P80
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(), 4, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 80 MHz signal that occupies P80 above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, P80_CENTER_FREQUENCY, MHz_u{80}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the P20 channel while the S40 channel was already in
        // CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(2) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(2) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies S40 followed by the reception of another "
            "20 MHz signal that occupies P20",
            {{dBm_u{-55}, tx1Start, txDuration1, S40_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}},
             {dBm_u{-55}, tx2Start, txDuration2, P20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta,
                 WifiPhyState::CCA_BUSY}, // state of primary is CCA-BUSY after aCcaTimeWithDelta
                                          // that followed the second transmission
                {txEndSignal2 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal2 + txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S20 channel while the S40
        // channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(2) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(2) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S40 followed by the reception of another signal "
            "that occupies S20",
            {{dBm_u{-55}, tx1Start, txDuration1, S40_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}},
             {dBm_u{-55}, tx2Start, txDuration2, S20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE when a 40 MHz PPDU with received power below the CCA
        // sensitivity threshold occupies S40
        ScheduleTest(delay,
                     "Reception of a 40 MHz PPDU that occupies S40 below CCA sensitivity threshold",
                     {},
                     {{dBm_u{-75}, tx1Start, S40_CENTER_FREQUENCY, MHz_u{40}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{40}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{40}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is reported when a 40 MHz PPDU
        // with received power above the CCA sensitivity threshold occupies S40
        const dBm_u rxPower{(m_standard == WIFI_STANDARD_80211ax) ? -70 : -67.0};
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 2,
                    2,
                    ppduDurations.at(MHz_u{40}));
        ScheduleTest(delay,
                     "Reception of a 40 MHz PPDU that occupies S40 above CCA sensitivity threshold",
                     {},
                     {{rxPower, tx1Start, S40_CENTER_FREQUENCY, MHz_u{40}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{40}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{40}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {{aCcaTimeWithDelta,
                       1,
                       tx1Start,
                       ppduDurations.at(MHz_u{40}),
                       WIFI_CHANLIST_SECONDARY40,
                       m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is still reported as long as a signal
        // above the energy detection threshold occupies the S40 while a 80 MHz PPDU below the CCA
        // sensitivity threshold is received on P80.
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 2, 2, txDuration1);
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(1).begin() + 2, 2, txDiff - aCcaTime);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies S40 above ED threshold followed by a 80 "
            "MHz PPDU that occupies P80 below CCA sensitivity threshold",
            {{dBm_u{-55},
              tx1Start,
              txDuration1,
              S40_CENTER_FREQUENCY,
              MHz_u{40}}}, // signal on S40 above threshold
            {{dBm_u{-80},
              tx2Start,
              P80_CENTER_FREQUENCY,
              MHz_u{80}}}, // PPDU on P80 below threshold
            {
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // PHY state stays IDLE
            },
            {{tx2Start - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {txEndSignal1 - smallDelta,
              2,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
    }
    else // 20 or 40 MHz receiver
    {
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY when a 80 MHz PPDU with received power above the CCA
        // sensitivity threshold occupies P40 The per20Bitmap should indicate idle for all
        // subchannels because received power is below -62 dBm (27.3.20.6.5).
        ScheduleTest(
            delay,
            "Reception of a 80 MHz PPDU that occupies the 40 MHz band above CCA sensitivity "
            "threshold",
            {},
            {{dBm_u{-70}, tx1Start, P80_CENTER_FREQUENCY, MHz_u{80}}},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA_BUSY after aCcaTimeWithDelta
                {ppduDurations.at(MHz_u{80}) - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA_BUSY just before the transmission ends
                {ppduDurations.at(MHz_u{80}) + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta,
              1,
              aCcaTime,
              legacyPhyHeaderDuration - aCcaTime,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {ppduDurations.at(MHz_u{80}) - smallDelta,
              4, // 3 extra CCA_BUSY notifications during PHY header reception
              aCcaTime,
              ppduDurations.at(MHz_u{80}),
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY when a 80 MHz PPDU with received power above the CCA
        // sensitivity threshold occupies P40 The per20Bitmap should indicate CCA_BUSY for all
        // subchannels because received power is above -62 dBm (27.3.20.6.5).
        if (m_channelWidth > MHz_u{20})
        {
            std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(),
                        2,
                        ppduDurations.at(80) - aCcaTime);
            std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(1).begin(),
                        2,
                        ppduDurations.at(MHz_u{80}) - hePhyHeaderDuration);
        }
        ScheduleTest(
            delay,
            "Reception of a 80 MHz PPDU that occupies the 40 MHz band above CCA sensitivity "
            "threshold",
            {},
            {{dBm_u{-55}, tx1Start, P80_CENTER_FREQUENCY, MHz_u{80}}},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA_BUSY after aCcaTimeWithDelta
                {ppduDurations.at(MHz_u{80}) - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA_BUSY just before the transmission ends
                {ppduDurations.at(MHz_u{80}) + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta,
              1,
              aCcaTime,
              legacyPhyHeaderDuration - aCcaTime,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {ppduDurations.at(MHz_u{80}) - smallDelta,
              4, // 3 extra CCA_BUSY notifications during PHY header reception
              aCcaTime,
              ppduDurations.at(MHz_u{80}),
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported when a signal not
        // occupying the operational channel is being received
        ScheduleTest(delay,
                     "Reception of a 40 MHz PPDU that does not occupy the operational channel",
                     {},
                     {{dBm_u{-50}, tx1Start, S40_CENTER_FREQUENCY, MHz_u{40}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{20}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{20}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
    }
 
    if (m_channelWidth > MHz_u{80})
    {
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal below the
        // energy detection threshold occupies the first 20 MHz subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the first subchannel of S80 below "
            "ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal above the
        // energy detection threshold occupies the first 20 MHz subchannel of the S80 27.3.20.6.4:
        // Any signal within the secondary 80 MHz channel at or above –56 dBm.
        m_expectedPer20MhzCcaBusyDurations.at(0).at(4) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the first subchannel of S80 above "
            "ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the second 20 MHz
        // subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S80 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the second 20 MHz subchannel
        // of the S80 27.3.20.6.4: Any signal within the secondary 80 MHz channel at or
        // above –56 dBm.
        m_expectedPer20MhzCcaBusyDurations.at(0).at(5) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S80 "
            "above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the third 20 MHz
        // subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the third subchannel of S80 "
            "below "
            "ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the third 20 MHz subchannel of
        // the S80 27.3.20.6.4: Any signal within the secondary 80 MHz channel at or
        // above –56 dBm.
        m_expectedPer20MhzCcaBusyDurations.at(0).at(6) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the third subchannel of S80 "
            "above "
            "ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the fourth 20 MHz
        // subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the fourth subchannel of S80 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the fourth 20 MHz subchannel
        // of the S80 27.3.20.6.4: Any signal within the secondary 80 MHz channel at or
        // above –56 dBm.
        m_expectedPer20MhzCcaBusyDurations.at(0).at(7) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the fourth subchannel of S80 "
            "above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the first and second 20
        // MHz subchannels of the S80
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the first and second "
            "subchannels "
            "of S80 below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the first and second 20 MHz
        // subchannels of the S80 27.3.20.6.4: Any signal within the secondary 80 MHz
        // channel at or above –56 dBm.
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 4, 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the first and second "
            "subchannels "
            "of S80 above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the third and fourth 20
        // MHz subchannels of the S80
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the third and fourth "
            "subchannels "
            "of S80 below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the third and fourth 20 MHz
        // subchannels of the S80 27.3.20.6.4: Any signal within the secondary 80 MHz
        // channel at or above –56 dBm.
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 6, 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the third and fourth "
            "subchannels "
            "of S80 above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a
        // signal below the energy detection threshold occupies the S80
        ScheduleTest(delay,
                     "Reception of a 80 MHz signal that occupies S80 below ED threshold",
                     {{dBm_u{-65}, tx1Start, txDuration1, S80_CENTER_FREQUENCY, MHz_u{80}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal
        // above the energy detection threshold occupies the S80 27.3.20.6.4: Any
        // signal within the secondary 80 MHz channel at or above –56 dBm.
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 4, 4, txDuration1);
        ScheduleTest(delay,
                     "Reception of a 80 MHz signal that occupies S80 above ED threshold",
                     {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY, MHz_u{80}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {{txEndSignal1 - smallDelta,
                       1,
                       tx1Start,
                       txEndSignal1,
                       WIFI_CHANLIST_SECONDARY80,
                       m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE as long as a 160 MHz signal below the energy
        // detection threshold occupies the whole band
        ScheduleTest(delay,
                     "Reception of a 160 MHz signal that occupies the whole band below ED "
                     "threshold",
                     {{dBm_u{-55}, tx1Start, txDuration1, P160_CENTER_FREQUENCY, MHz_u{160}}},
                     {},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {txEndSignal1 - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {txEndSignal1 + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
 
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state is CCA-BUSY as long as a 160 MHz signal above the energy
        // detection threshold occupies the whole band
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(), 8, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 160 MHz signal that occupies the whole band above ED "
            "threshold",
            {{dBm_u{-50}, tx1Start, txDuration1, P160_CENTER_FREQUENCY, MHz_u{160}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the P20 channel while the S80 channel was
        // already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(6) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(6) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies S80 followed by the reception "
            "of another "
            "20 MHz signal that occupies P20",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}},
             {dBm_u{-55}, tx2Start, txDuration2, P20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays idle
                                                         // after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta,
                 WifiPhyState::CCA_BUSY}, // state of primary is CCA-BUSY after
                                          // aCcaTimeWithDelta that followed the second
                                          // transmission
                {txEndSignal2 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of
                                            // the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S40 channel while
        // the S80 channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(7) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(2) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(7) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S80 followed by the reception of "
            "another signal "
            "that occupies S40",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}},
             {dBm_u{-55}, tx2Start, txDuration2, S40_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE},            // state of primary stays idle
                                                                    // after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of
                                            // the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S20 channel while
        // the S80 channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(4) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(4) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S80 followed by the reception of "
            "another signal "
            "that occupies S20",
            {{dBm_u{-55}, tx1Start, txDuration1, S80_CENTER_FREQUENCY - MHz_u{30}, MHz_u{20}},
             {dBm_u{-55}, tx2Start, txDuration2, S20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE},            // state of primary stays idle
                                                                    // after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of
                                            // the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE when a 80 MHz PPDU with received power below the
        // CCA sensitivity threshold occupies S80
        ScheduleTest(delay,
                     "Reception of a 80 MHz PPDU that occupies S80 below CCA sensitivity "
                     "threshold",
                     {},
                     {{dBm_u{-70}, tx1Start, S80_CENTER_FREQUENCY, MHz_u{80}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{80}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{80}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is reported when a 80
        // MHz PPDU with received power above the CCA sensitivity threshold occupies
        // S80
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 4,
                    4,
                    ppduDurations.at(MHz_u{80}));
        ScheduleTest(delay,
                     "Reception of a 80 MHz PPDU that occupies S80 above CCA sensitivity "
                     "threshold",
                     {},
                     {{dBm_u{-65}, tx1Start, S80_CENTER_FREQUENCY, MHz_u{80}}},
                     {
                         {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                         {ppduDurations.at(MHz_u{80}) - smallDelta,
                          WifiPhyState::IDLE}, // IDLE just before the transmission ends
                         {ppduDurations.at(MHz_u{80}) + smallDelta,
                          WifiPhyState::IDLE} // IDLE just after the transmission ends
                     },
                     {{aCcaTimeWithDelta,
                       1,
                       tx1Start,
                       ppduDurations.at(MHz_u{80}),
                       WIFI_CHANLIST_SECONDARY80,
                       m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        if (m_standard == WIFI_STANDARD_80211ax)
        {
            //----------------------------------------------------------------------------------------------------------------------------------
            // Verify PHY state stays IDLE and CCA-BUSY indication is reported if only
            // the per20bitmap parameter changes
            m_expectedPer20MhzCcaBusyDurations.at(0).at(7) = txDuration1;
            ScheduleTest(
                delay,
                "Reception of a 20 MHz signal that generates a per20bitmap parameter "
                "change when previous CCA indication reports IDLE",
                {{dBm_u{-60}, tx1Start, txDuration1, S80_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}}},
                {},
                {
                    {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                    {txEndSignal1 - smallDelta,
                     WifiPhyState::IDLE}, // IDLE just before the transmission ends
                    {txEndSignal1 + smallDelta,
                     WifiPhyState::IDLE} // IDLE just after the transmission ends
                },
                {{aCcaTimeWithDelta,
                  1,
                  tx1Start,
                  tx1Start,
                  WIFI_CHANLIST_PRIMARY,
                  m_expectedPer20MhzCcaBusyDurations.at(0)}});
            delay += testStep;
            ResetExpectedPer20MhzCcaBusyDurations();
 
            //----------------------------------------------------------------------------------------------------------------------------------
            // Verify PHY state stays CCA_BUSY and CCA-BUSY indication is reported if
            // only the per20bitmap parameter changes
            std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(), 4, txDuration1);
            std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(1).begin(), 4, txDiff);
            m_expectedPer20MhzCcaBusyDurations.at(1).at(7) = txDuration2;
            ScheduleTest(
                delay,
                "Reception of a 20 MHz signal that generates a per20bitmap parameter "
                "change when "
                "previous CCA indication reports BUSY for the primary channel",
                {{dBm_u{-50}, tx1Start, txDuration1, P80_CENTER_FREQUENCY, MHz_u{80}},
                 {dBm_u{-60}, tx2Start, txDuration2, S80_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}}},
                {},
                {
                    {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                    {txEndSignal1 - smallDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the
                                                                         // transmission ends
                    {txEndSignal1 + smallDelta,
                     WifiPhyState::IDLE} // IDLE just after the transmission ends
                },
                {{aCcaTimeWithDelta,
                  1,
                  tx1Start,
                  txEndSignal1,
                  WIFI_CHANLIST_PRIMARY,
                  m_expectedPer20MhzCcaBusyDurations.at(0)},
                 {tx2Start + aCcaTimeWithDelta, // notification upon reception
                                                // of the second signal
                  2,
                  tx1Start,
                  txEndSignal1,
                  WIFI_CHANLIST_PRIMARY,
                  m_expectedPer20MhzCcaBusyDurations.at(1)}});
            delay += testStep;
            ResetExpectedPer20MhzCcaBusyDurations();
        }
    }
 
    if (m_channelWidth > 160)
    {
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal below the
        // energy detection threshold occupies the first 20 MHz subchannel of the S160
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the first subchannel of S160 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{70}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal above the
        // energy detection threshold occupies the first 20 MHz subchannel of the S160.
        // 36.3.21.6.4: (...) A signal is present on the 20 MHz subchannel at or above a threshold
        // of –62 dBm. (...)
        m_expectedPer20MhzCcaBusyDurations.at(0).at(8) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the first subchannel of S160 "
            "above ED threshold",
            {{dBm_u{-61}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{70}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal below the
        // energy detection threshold occupies the second 20 MHz subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S160 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{50}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal above the
        // energy detection threshold occupies the second 20 MHz subchannel of the S160 27.3.20.6.4:
        // 36.3.21.6.4: (...) A signal is present on the 20 MHz subchannel at or above a threshold
        // of –62 dBm. (...)
        m_expectedPer20MhzCcaBusyDurations.at(0).at(9) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the second subchannel of S160 "
            "above ED threshold",
            {{dBm_u{-61}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{50}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal below the
        // energy detection threshold occupies the third 20 MHz subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the third subchannel of S160 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal above the
        // energy detection threshold occupies the third 20 MHz subchannel of the S160 27.3.20.6.4:
        // 36.3.21.6.4: (...) A signal is present on the 20 MHz subchannel at or above a threshold
        // of –62 dBm. (...)
        m_expectedPer20MhzCcaBusyDurations.at(0).at(10) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the third subchannel of S160 "
            "above ED threshold",
            {{dBm_u{-61}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{30}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal below the
        // energy detection threshold occupies the fourth 20 MHz subchannel of the S80
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the fourth subchannel of S160 "
            "below ED threshold",
            {{dBm_u{-65}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and CCA-BUSY indication is reported if a signal above the
        // energy detection threshold occupies the fourth 20 MHz subchannel of the S160 27.3.20.6.4:
        // 36.3.21.6.4: (...) A signal is present on the 20 MHz subchannel at or above a threshold
        // of –62 dBm. (...)
        m_expectedPer20MhzCcaBusyDurations.at(0).at(11) = txDuration1;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies the fourth subchannel of S160 "
            "above ED threshold",
            {{dBm_u{-61}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the fifth and sixth 20 MHz subchannels of the S160 with received power below the energy
        // detection threshold for all occupied 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the fifth and sixth subchannels "
            "of S160 below ED threshold",
            {{dBm_u{-60}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the fifth and sixth 20 MHz subchannels of the S160 with received power above the energy
        // detection threshold for any occupied 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 12, 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the fifth and sixth subchannels "
            "of S160 above ED threshold",
            {{dBm_u{-58}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{20}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the seventh and eighth 20 MHz subchannels of the S160 with received power below the
        // energy detection threshold for all occupied 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the seventh and eighth "
            "subchannels of S160 below ED threshold",
            {{dBm_u{-60}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{60}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the seventh and eighth 20 MHz subchannels of the S160 with received power above the
        // energy detection threshold for any occupied 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 14, 2, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 40 MHz signal that occupies the seventh and eighth "
            "subchannels of S160 above ED threshold",
            {{dBm_u{-58}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{60}, MHz_u{40}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal
        // occupies the first four 20 MHz subchannels of the S160 with received power below the
        // energy detection threshold for all occupied 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 80 MHz signal that occupies the first four subchannels of "
            "S160 below ED threshold",
            {{dBm_u{-57}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{40}, MHz_u{80}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal
        // occupies the first four 20 MHz subchannels of the S160 with received power above the
        // energy detection threshold for any occupied 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 8, 4, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 80 MHz signal that occupies the first four subchannels of "
            "S160 above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S160_CENTER_FREQUENCY - MHz_u{40}, MHz_u{80}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal
        // occupies the last four 20 MHz subchannels of the S160 with received power below the
        // energy detection threshold for all occupied 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 80 MHz signal that occupies the last four subchannels of S160 "
            "below ED threshold",
            {{dBm_u{-57}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{40}, MHz_u{80}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal
        // occupies the last four 20 MHz subchannels of the S160 with received power above the
        // energy detection threshold for any occupied 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 12, 4, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 80 MHz signal that occupies the last four subchannels of S160 "
            "above ED threshold",
            {{dBm_u{-55}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{40}, MHz_u{80}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the whole S160 with received power below the energy detection threshold for all occupied
        // 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 160 MHz signal that occupies the whole S160 below ED threshold",
            {{dBm_u{-54}, tx1Start, txDuration1, S160_CENTER_FREQUENCY, MHz_u{160}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE and no CCA-BUSY indication is reported if a signal occupies
        // the whole S160 with received power above the energy detection threshold for any occupied
        // 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 8, 8, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 160 MHz signal that occupies the whole S160 above ED threshold",
            {{dBm_u{-52}, tx1Start, txDuration1, S160_CENTER_FREQUENCY, MHz_u{160}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE as long as a 320 MHz signal below the energy detection
        // threshold occupies the whole band
        ScheduleTest(
            delay,
            "Reception of a 320 MHz signal that occupies the whole band below ED threshold",
            {{dBm_u{-51}, tx1Start, txDuration1, P320_CENTER_FREQUENCY, MHz_u{320}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state is CCA-BUSY as long as a 320 MHz signal above the energy detection
        // threshold occupies the whole band
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin(), 16, txDuration1);
        ScheduleTest(
            delay,
            "Reception of a 320 MHz signal that occupies the whole band above ED threshold",
            {{dBm_u{-49}, tx1Start, txDuration1, P320_CENTER_FREQUENCY, MHz_u{320}}},
            {},
            {
                {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
                {txEndSignal1 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal1 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{txEndSignal1 - smallDelta,
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY notifies CCA-BUSY for the P20 channel while the S160 channel was already
        // in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(15) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(15) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a 20 MHz signal that occupies S160 followed by the reception of another "
            "20 MHz signal that occupies P20",
            {{dBm_u{-52}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{70}, MHz_u{20}},
             {dBm_u{-52}, tx2Start, txDuration2, P20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta,
                 WifiPhyState::CCA_BUSY}, // state of primary is CCA-BUSY after
                                          // aCcaTimeWithDelta that followed the second
                                          // transmission
                {txEndSignal2 - smallDelta,
                 WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_PRIMARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S80 channel while the S160
        // channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(14) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(5) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(14) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S160 followed by the reception of another signal "
            "that occupies S80",
            {{dBm_u{-52}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{50}, MHz_u{20}},
             {dBm_u{-52}, tx2Start, txDuration2, S80_CENTER_FREQUENCY - MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY80,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S40 channel while the S160
        // channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(13) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(3) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(13) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S160 followed by the reception of another signal "
            "that occupies S40",
            {{dBm_u{-52}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{30}, MHz_u{20}},
             {dBm_u{-52}, tx2Start, txDuration2, S40_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY40,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but notifies CCA-BUSY for the S20 channel while the S160
        // channel was already in CCA-BUSY state
        m_expectedPer20MhzCcaBusyDurations.at(0).at(12) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(1) = txDuration2;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(12) = txDiff;
        ScheduleTest(
            delay,
            "Reception of a signal that occupies S160 followed by the reception of another signal "
            "that occupies S20",
            {{dBm_u{-52}, tx1Start, txDuration1, S160_CENTER_FREQUENCY + MHz_u{10}, MHz_u{20}},
             {dBm_u{-52}, tx2Start, txDuration2, S20_CENTER_FREQUENCY, MHz_u{20}}},
            {},
            {
                {aCcaTimeWithDelta,
                 WifiPhyState::IDLE}, // state of primary stays idle after aCcaTimeWithDelta
                {tx2Start + aCcaTimeWithDelta, WifiPhyState::IDLE}, // state of primary stays IDLE
                {txEndSignal2 - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {txEndSignal2 + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta, // notification upon reception of the first signal
              1,
              tx1Start,
              txEndSignal1,
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)},
             {tx2Start + aCcaTimeWithDelta, // notification upon reception of the second signal
              2,
              tx1Start,
              txEndSignal2,
              WIFI_CHANLIST_SECONDARY,
              m_expectedPer20MhzCcaBusyDurations.at(1)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE when a 160 MHz PPDU that occupies S160 with received
        // power below the Per 20 MHz CCA threshold for all occupied 20 MHz subchannels
        ScheduleTest(
            delay,
            "Reception of a 160 MHz PPDU that occupies S160 below CCA sensitivity threshold",
            {},
            {{dBm_u{-64}, tx1Start, S160_CENTER_FREQUENCY, MHz_u{160}}},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {ppduDurations.at(MHz_u{160}) - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {ppduDurations.at(MHz_u{160}) + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {});
        delay += testStep;
 
        //----------------------------------------------------------------------------------------------------------------------------------
        // Verify PHY state stays IDLE but CCA-BUSY indication is reported when a 160 MHz PPDU
        // that occupies S160 with received power above the Per 20 MHz CCA threshold for any
        // occupied 20 MHz subchannels
        std::fill_n(m_expectedPer20MhzCcaBusyDurations.at(0).begin() + 8,
                    8,
                    ppduDurations.at(MHz_u{160}));
        ScheduleTest(
            delay,
            "Reception of a 160 MHz PPDU that occupies S160 above CCA sensitivity threshold",
            {},
            {{dBm_u{-62}, tx1Start, S160_CENTER_FREQUENCY, MHz_u{160}}},
            {
                {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
                {ppduDurations.at(MHz_u{160}) - smallDelta,
                 WifiPhyState::IDLE}, // IDLE just before the transmission ends
                {ppduDurations.at(MHz_u{160}) + smallDelta,
                 WifiPhyState::IDLE} // IDLE just after the transmission ends
            },
            {{aCcaTimeWithDelta,
              1,
              tx1Start,
              ppduDurations.at(MHz_u{160}),
              WIFI_CHANLIST_SECONDARY160,
              m_expectedPer20MhzCcaBusyDurations.at(0)}});
        delay += testStep;
        ResetExpectedPer20MhzCcaBusyDurations();
    }
 
    if (m_channelWidth > MHz_u{20})
    {
        m_expectedPer20MhzCcaBusyDurations.at(0).at(0) = txDuration1;
        m_expectedPer20MhzCcaBusyDurations.at(1).at(0) = Time();
    }
 
    ScheduleTest(
        delay,
        "Reception of signal above ED threshold that triggers CCA BUSY indication followed by CCA "
        "IDLE indication when the threshold is increased",
        {{dBm_u{-60}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {},
        {
            {aCcaTimeWithDelta, WifiPhyState::CCA_BUSY}, // CCA-BUSY after aCcaTimeWithDelta
            {thresholdUpdateTime - smallDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the threshold changes
            {thresholdUpdateTime + smallDelta,
             WifiPhyState::IDLE}, // IDLE just after the threshold changes
            {txEndSignal1 - smallDelta,
             WifiPhyState::IDLE}, // IDLE just before the transmission ends
            {txEndSignal1 + smallDelta, WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {{thresholdUpdateTime - smallDelta,
          1, // first notification CCA busy until end of transmission
          tx1Start,
          txEndSignal1,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(0)},
         {txEndSignal1 - smallDelta,
          2, // second notification CCA busy ends when threshold changed
          tx1Start,
          thresholdUpdateTime,
          WIFI_CHANLIST_PRIMARY,
          m_expectedPer20MhzCcaBusyDurations.at(1)}},
        {
            {.timePoint = thresholdUpdateTime,
             .ccaThreshold =
                 dBm_u{-50}}, // change CCA threshold during the reception to a higher value
        });
    delay += testStep;
    ResetExpectedPer20MhzCcaBusyDurations();
 
    if (m_channelWidth > MHz_u{20})
    {
        m_expectedPer20MhzCcaBusyDurations.at(0).at(0) = txDuration1 - thresholdUpdateTime;
    }
 
    ScheduleTest(
        delay,
        "Reception of signal below ED threshold that triggers CCA IDLE indication followed by CCA "
        "BUSY indication when the threshold is decreased",
        {{dBm_u{-65}, tx1Start, txDuration1, P20_CENTER_FREQUENCY, MHz_u{20}}},
        {},
        {
            {aCcaTimeWithDelta, WifiPhyState::IDLE}, // IDLE after aCcaTimeWithDelta
            {thresholdUpdateTime - smallDelta,
             WifiPhyState::IDLE}, // IDLE just before the threshold changes
            {thresholdUpdateTime + smallDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY just after the threshold changes
            {txEndSignal1 - smallDelta,
             WifiPhyState::CCA_BUSY}, // CCA-BUSY just before the transmission ends
            {txEndSignal1 + smallDelta, WifiPhyState::IDLE} // IDLE just after the transmission ends
        },
        {
            {txEndSignal1 - smallDelta,
             1, // first notification CCA busy until end of transmission since threshold changed
             thresholdUpdateTime,
             txEndSignal1,
             WIFI_CHANLIST_PRIMARY,
             m_expectedPer20MhzCcaBusyDurations.at(0)},
        },
        {
            {.timePoint = thresholdUpdateTime,
             .ccaThreshold =
                 dBm_u{-70}}, // change CCA threshold during the reception to a higher value
        });
    delay += testStep;
    ResetExpectedPer20MhzCcaBusyDurations();
 
    Simulator::Run();
}
 
void
WifiPhyCcaIndicationTest::DoRun()
{
    m_frequency = P20_CENTER_FREQUENCY;
    m_channelWidth = MHz_u{20};
    RunOne();
 
    m_frequency = P40_CENTER_FREQUENCY;
    m_channelWidth = MHz_u{40};
    RunOne();
 
    m_frequency = P80_CENTER_FREQUENCY;
    m_channelWidth = MHz_u{80};
    RunOne();
 
    m_frequency = P160_CENTER_FREQUENCY;
    m_channelWidth = MHz_u{160};
    RunOne();
 
    if (m_standard > WIFI_STANDARD_80211ax)
    {
        m_frequency = P320_CENTER_FREQUENCY;
        m_channelWidth = MHz_u{320};
        RunOne();
    }
 
    Simulator::Destroy();
}
 
void
WifiPhyCcaIndicationTest::DoTeardown()
{
    m_rxPhy->Dispose();
    m_rxPhy = nullptr;
    m_uxPhy->Dispose();
    m_uxPhy = nullptr;
    for (auto& signalGenerator : m_signalGenerators)
    {
        signalGenerator->Dispose();
        signalGenerator = nullptr;
    }
}
 
/**
 * @ingroup wifi-test
 * @ingroup tests
 *
 * @brief Wi-Fi PHY CCA Test Suite
 */
class WifiPhyCcaTestSuite : public TestSuite
{
  public:
    WifiPhyCcaTestSuite();
};
 
WifiPhyCcaTestSuite::WifiPhyCcaTestSuite()
    : TestSuite("wifi-phy-cca", Type::UNIT)
{
    AddTestCase(new WifiPhyCcaThresholdsTest, TestCase::Duration::QUICK);
    AddTestCase(new WifiPhyCcaIndicationTest(WIFI_STANDARD_80211ax), TestCase::Duration::QUICK);
    AddTestCase(new WifiPhyCcaIndicationTest(WIFI_STANDARD_80211be), TestCase::Duration::QUICK);
}
 
static WifiPhyCcaTestSuite WifiPhyCcaTestSuite; ///< the test suite