Test the switching of PHYs on EMLSR clients. More...

Inheritance diagram for EmlsrLinkSwitchTest:

Collaboration diagram for EmlsrLinkSwitchTest:

Public Member Functions
	EmlsrLinkSwitchTest (bool switchAuxPhy, bool resetCamState, uint16_t auxPhyMaxChWidth)
	Constructor.

	~EmlsrLinkSwitchTest () override=default

Public Member Functions inherited from EmlsrOperationsTestBase
	EmlsrOperationsTestBase (const std::string &name)
	Constructor.

	~EmlsrOperationsTestBase () override=default

Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete

virtual	~TestCase ()
	Destructor.

std::string	GetName () const

TestCase &	operator= (const TestCase &)=delete

Protected Member Functions
void	CheckInitialControlFrame (const WifiConstPsduMap &psduMap, const WifiTxVector &txVector, uint8_t linkId)
	Check that the Main PHY (and possibly the Aux PHY) correctly switches channel when the reception of an ICF ends.

void	CheckQosFrames (const WifiConstPsduMap &psduMap, const WifiTxVector &txVector, uint8_t linkId)
	Check that appropriate actions are taken by the AP MLD transmitting a PPDU containing QoS data frames to the EMLSR client on the given link.

void	CheckResults ()
	Check that the simulation produced the expected results.

void	DoRun () override
	Implementation to actually run this TestCase.

void	DoSetup () override
	Implementation to do any local setup required for this TestCase.

void	Transmit (Ptr< WifiMac > mac, uint8_t phyId, WifiConstPsduMap psduMap, WifiTxVector txVector, double txPowerW) override
	Callback invoked when a FEM passes PSDUs to the PHY.

Protected Member Functions inherited from EmlsrOperationsTestBase
void	CheckBlockedLink (Ptr< WifiMac > mac, Mac48Address dest, uint8_t linkId, WifiQueueBlockedReason reason, bool blocked, std::string description, bool testUnblockedForOtherReasons=true)
	Check whether QoS data unicast transmissions addressed to the given destination on the given link are blocked or unblocked for the given reason on the given device.

void	DoSetup () override
	Implementation to do any local setup required for this TestCase.

Ptr< PacketSocketClient >	GetApplication (TrafficDirection dir, std::size_t staId, std::size_t count, std::size_t pktSize) const

virtual void	Transmit (Ptr< WifiMac > mac, uint8_t phyId, WifiConstPsduMap psduMap, WifiTxVector txVector, double txPowerW)
	Callback invoked when a FEM passes PSDUs to the PHY.

Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.

void	AddTestCase (TestCase *testCase, TestDuration duration=QUICK)
	Add an individual child TestCase to this test suite.

TestCase *	GetParent () const
	Get the parent of this TestCase.

bool	IsStatusFailure () const
	Check if any tests failed.

bool	IsStatusSuccess () const
	Check if all tests passed.

void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found.

void	ReportTestFailure (std::string cond, std::string actual, std::string limit, std::string message, std::string file, int32_t line)
	Log the failure of this TestCase.

bool	MustAssertOnFailure () const
	Check if this run should assert on failure.

bool	MustContinueOnFailure () const
	Check if this run should continue on failure.

std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory.

std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory.

Private Attributes
uint16_t	m_auxPhyMaxChWidth
	max channel width (MHz) supported by aux PHYs

std::size_t	m_countQoSframes
	counter for QoS data frames

bool	m_resetCamState
	whether to reset the state of the ChannelAccessManager associated with the link on which the main PHY has just switched to

bool	m_switchAuxPhy
	whether AUX PHY should switch channel to operate on the link on which the Main PHY was operating before moving to the link of Aux PHY

std::size_t	m_txPsdusPos
	a position in the vector of TX PSDUs

Additional Inherited Members
Public Types inherited from EmlsrOperationsTestBase
enum	TrafficDirection : uint8_t { DOWNLINK = 0 , UPLINK }
	Enumeration for traffic directions. More...

Public Types inherited from ns3::TestCase
enum	TestDuration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...

Protected Attributes inherited from EmlsrOperationsTestBase
Ptr< ApWifiMac >	m_apMac
	AP wifi MAC.

std::vector< PacketSocketAddress >	m_dlSockets
	packet socket address for DL traffic

Time	m_duration {0}
	simulation duration

bool	m_establishBaDl {false}
	whether BA needs to be established (for TID 0) with the AP as originator

bool	m_establishBaUl {false}
	whether BA needs to be established (for TID 0) with the AP as recipient

uint16_t	m_lastAid {0}
	AID of last associated station.

std::set< uint8_t >	m_linksToEnableEmlsrOn
	IDs of the links on which EMLSR mode has to be enabled.

uint8_t	m_mainPhyId {0}
	ID of the main PHY.

std::size_t	m_nEmlsrStations {1}
	number of stations to create that activate EMLSR

std::size_t	m_nNonEmlsrStations {0}
	number of stations to create that do not activate EMLSR

std::vector< Time >	m_paddingDelay
	Padding Delay advertised by the non-AP MLD.

std::vector< Ptr< StaWifiMac > >	m_staMacs
	MACs of the non-AP MLDs.

std::vector< Time >	m_transitionDelay
	Transition Delay advertised by the non-AP MLD.

Time	m_transitionTimeout {MicroSeconds(128)}
	Transition Timeout advertised by the AP MLD.

std::vector< FrameInfo >	m_txPsdus
	transmitted PSDUs

std::vector< PacketSocketAddress >	m_ulSockets
	packet socket address for UL traffic

Detailed Description

Test the switching of PHYs on EMLSR clients.

An AP MLD and an EMLSR client setup 3 links, on which EMLSR mode is enabled. The AP MLD transmits 4 QoS data frames (one after another, each protected by ICF):

the first one on the link used for ML setup, hence no PHY switch occurs
the second one on another link, thus causing the main PHY to switch link
the third one on the remaining link, thus causing the main PHY to switch link again
the fourth one on the link used for ML setup; if the aux PHYs switches link, there is one aux PHY listening on such a link and the main PHY switches to this link, otherwise no PHY is listening on such a link and there is no response to the ICF sent by the AP MLD

Definition at line 2644 of file wifi-emlsr-test.cc.

Constructor & Destructor Documentation

◆ EmlsrLinkSwitchTest()

EmlsrLinkSwitchTest::EmlsrLinkSwitchTest	(	bool	switchAuxPhy,
		bool	resetCamState,
		uint16_t	auxPhyMaxChWidth
	)

Constructor.

Parameters

switchAuxPhy	whether AUX PHY should switch channel to operate on the link on which the Main PHY was operating before moving to the link of the Aux PHY
resetCamState	whether to reset the state of the ChannelAccessManager associated with the link on which the main PHY has just switched to
auxPhyMaxChWidth	max channel width (MHz) supported by aux PHYs

Definition at line 2708 of file wifi-emlsr-test.cc.

References EmlsrOperationsTestBase::m_duration, EmlsrOperationsTestBase::m_establishBaDl, EmlsrOperationsTestBase::m_linksToEnableEmlsrOn, EmlsrOperationsTestBase::m_mainPhyId, EmlsrOperationsTestBase::m_nEmlsrStations, EmlsrOperationsTestBase::m_nNonEmlsrStations, and ns3::Seconds().

Here is the call graph for this function:

◆ ~EmlsrLinkSwitchTest()

EmlsrLinkSwitchTest::~EmlsrLinkSwitchTest ( )

overridedefault

Member Function Documentation

◆ CheckInitialControlFrame()

void EmlsrLinkSwitchTest::CheckInitialControlFrame	(	const WifiConstPsduMap &	psduMap,
		const WifiTxVector &	txVector,
		uint8_t	linkId
	)

protected

Check that the Main PHY (and possibly the Aux PHY) correctly switches channel when the reception of an ICF ends.

AUX PHY switching enabled.

Parameters

psduMap	the PSDU carrying the MU-RTS TF
txVector	the TXVECTOR used to send the PPDU
linkId	the ID of the given link

|------— aux PHY A ------—|---— main PHY ---—|-----------— aux PHY B -----------— ┌───┐ ┌───┐ │ICF│ │QoS│ ──────────────────────────┴───┴┬───┬┴───┴┬──┬──────────────────────────────────────────────── [link 0] │CTS│ │BA│ └───┘ └──┘

|------— main PHY -------—|---------------— aux PHY A -------------—|— main PHY — ┌───┐ ┌───┐ ┌───┐ ┌───┐ │ICF│ │QoS│ │ICF│ │QoS│ ───┴───┴┬───┬┴───┴┬──┬──────────────────────────────────────────────────┴───┴┬───┬┴───┴┬──┬── [link 1]│CTS│ │BA│ │CTS│ │BA│ └───┘ └──┘ └───┘ └──┘

|------------------— aux PHY B -----------------—|---— main PHY ---—|– aux PHY A — ┌───┐ ┌───┐ │ICF│ │QoS│ ─────────────────────────────────────────────────┴───┴┬───┬┴───┴┬──┬───────────────────────── [link 2] │CTS│ │BA│ └───┘ └──┘

AUX PHY switching disabled

|------— aux PHY A ------—|---— main PHY ---—| ┌───┐ ┌───┐ │ICF│ │QoS│ ──────────────────────────┴───┴┬───┬┴───┴┬──┬──────────────────────────────────────────────── [link 0] │CTS│ │BA│ └───┘ └──┘

|------— main PHY -------—| ┌───┐ ┌───┐ ┌───┐ ┌───┐ ┌───┐ │ICF│ │QoS│ │ICF│ │ICF│ │ICF│ ───┴───┴┬───┬┴───┴┬──┬──────────────────────────────────────────────────┴───┴──┴───┴──┴───┴── [link 1]│CTS│ │BA│ └───┘ └──┘

|------------------— aux PHY B -----------------—|------------— main PHY -----------— ┌───┐ ┌───┐ │ICF│ │QoS│ ─────────────────────────────────────────────────┴───┴┬───┬┴───┴┬──┬───────────────────────── [link 2] │CTS│ │BA│ └───┘ └──┘

Definition at line 2950 of file wifi-emlsr-test.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::WifiPhy::GetPhyBand(), ns3::WifiMac::GetWifiPhy(), EmlsrOperationsTestBase::m_apMac, m_auxPhyMaxChWidth, m_countQoSframes, EmlsrOperationsTestBase::m_mainPhyId, EmlsrOperationsTestBase::m_staMacs, m_switchAuxPhy, m_txPsdusPos, ns3::NanoSeconds(), NS_TEST_ASSERT_MSG_EQ, NS_TEST_EXPECT_MSG_EQ, NS_TEST_EXPECT_MSG_LT, NS_TEST_EXPECT_MSG_LT_OR_EQ, NS_TEST_EXPECT_MSG_NE, and ns3::Simulator::Schedule().