A Discrete-Event Network Simulator
API
ns3::HtFrameExchangeManager Class Reference

HtFrameExchangeManager handles the frame exchange sequences for HT stations. More...

#include "ht-frame-exchange-manager.h"

+ Inheritance diagram for ns3::HtFrameExchangeManager:
+ Collaboration diagram for ns3::HtFrameExchangeManager:

Public Member Functions

 HtFrameExchangeManager ()
 
virtual ~HtFrameExchangeManager ()
 
virtual void CalculateAcknowledgmentTime (WifiAcknowledgment *acknowledgment) const override
 Calculate the time required to acknowledge a frame according to the given acknowledgment method. More...
 
void CreateBlockAckAgreement (const MgtAddBaResponseHeader *respHdr, Mac48Address originator, uint16_t startingSeq)
 
void DestroyBlockAckAgreement (Mac48Address originator, uint8_t tid)
 Destroy a Block Ack agreement. More...
 
bool GetBaAgreementEstablished (Mac48Address originator, uint8_t tid) const
 Return true if a Block Ack agreement has been established with the given originator for the given TID. More...
 
BlockAckType GetBlockAckType (Mac48Address originator, uint8_t tid) const
 Get the type of BlockAck frames sent to the given originator. More...
 
Ptr< MpduAggregatorGetMpduAggregator (void) const
 Returns the aggregator used to construct A-MPDU subframes. More...
 
Ptr< MsduAggregatorGetMsduAggregator (void) const
 Returns the aggregator used to construct A-MSDU subframes. More...
 
virtual uint16_t GetSupportedBaBufferSize (void) const
 Get the maximum supported buffer size for a Block Ack agreement. More...
 
virtual bool IsWithinAmpduSizeLimit (uint32_t ampduSize, Mac48Address receiver, uint8_t tid, WifiModulationClass modulation) const
 Check whether an A-MPDU of the given size meets the constraint on the maximum size for A-MPDUs sent to the given receiver, belonging to the given TID and transmitted using the given modulation class. More...
 
virtual bool IsWithinLimitsIfAddMpdu (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams, Time ppduDurationLimit) const override
 Check if the PSDU obtained by aggregating the given MPDU to the PSDU specified by the given TX parameters meets the constraints on the maximum A-MPDU size and its transmission time does not exceed the given PPDU duration limit (if different than Time::Min()). More...
 
virtual bool IsWithinLimitsIfAggregateMsdu (Ptr< const WifiMacQueueItem > msdu, const WifiTxParameters &txParams, Time ppduDurationLimit) const
 Check if the PSDU obtained by aggregating the given MSDU to the PSDU specified by the given TX parameters meets the constraints on the maximum A-MSDU size and its transmission time does not exceed the given PPDU duration limit (if different than Time::Min()). More...
 
void SendAddBaResponse (const MgtAddBaRequestHeader *reqHdr, Mac48Address originator)
 This method can be called to accept a received ADDBA Request. More...
 
virtual void SetWifiMac (const Ptr< RegularWifiMac > mac) override
 Set the MAC layer to use. More...
 
virtual bool StartFrameExchange (Ptr< QosTxop > edca, Time availableTime, bool initialFrame) override
 Start a frame exchange (including protection frames and acknowledgment frames as needed) that fits within the given availableTime (if different than Time::Min()). More...
 
virtual bool TryAggregateMsdu (Ptr< const WifiMacQueueItem > msdu, WifiTxParameters &txParams, Time availableTime) const
 Check if aggregating an MSDU to the current MPDU (as specified by the given TX parameters) does not violate the size and time constraints, while taking into account the possibly updated protection and acknowledgment methods. More...
 
- Public Member Functions inherited from ns3::QosFrameExchangeManager
 QosFrameExchangeManager ()
 
virtual ~QosFrameExchangeManager ()
 
virtual bool IsWithinSizeAndTimeLimits (uint32_t ppduPayloadSize, Mac48Address receiver, const WifiTxParameters &txParams, Time ppduDurationLimit) const
 Check whether the transmission time of the frame being built (as described by the given TX parameters) does not exceed the given PPDU duration limit if the size of the PSDU addressed to the given receiver becomes ppduPayloadSize. More...
 
virtual bool StartTransmission (Ptr< Txop > edca) override
 Request the FrameExchangeManager to start a frame exchange sequence. More...
 
bool TryAddMpdu (Ptr< const WifiMacQueueItem > mpdu, WifiTxParameters &txParams, Time availableTime) const
 Recompute the protection and acknowledgment methods to use if the given MPDU is added to the frame being built (as described by the given TX parameters) and check whether the duration of the frame exchange sequence (including protection and acknowledgment) does not exceed the given available time. More...
 
- Public Member Functions inherited from ns3::FrameExchangeManager
 FrameExchangeManager ()
 
virtual ~FrameExchangeManager ()
 
virtual void CalculateProtectionTime (WifiProtection *protection) const
 Calculate the time required to protect a frame according to the given protection method. More...
 
Ptr< WifiAckManagerGetAckManager (void) const
 Get the Acknowledgment Manager used by this node. More...
 
Ptr< WifiProtectionManagerGetProtectionManager (void) const
 Get the Protection Manager used by this node. More...
 
const WifiTxTimerGetWifiTxTimer (void) const
 Get a const reference to the WifiTxTimer object. More...
 
bool IsPromisc (void) const
 Check if the device is operating in promiscuous mode. More...
 
void NotifyOffNow (void)
 This method is typically invoked by the PhyMacLowListener to notify the MAC layer that the device has been put into off mode. More...
 
void NotifySleepNow (void)
 This method is typically invoked by the PhyMacLowListener to notify the MAC layer that the device has been put into sleep mode. More...
 
void NotifySwitchingStartNow (Time duration)
 
void Receive (Ptr< WifiPsdu > psdu, RxSignalInfo rxSignalInfo, WifiTxVector txVector, std::vector< bool > perMpduStatus)
 This method is intended to be called by the PHY layer every time an MPDU is received and also when the reception of an A-MPDU is completed. More...
 
virtual void ResetPhy (void)
 Remove WifiPhy associated with this MacLow. More...
 
void SetAckedMpduCallback (AckedMpdu callback)
 Set the callback to invoke when an MPDU is successfully acked. More...
 
virtual void SetAckManager (Ptr< WifiAckManager > ackManager)
 Set the Acknowledgment Manager to use. More...
 
virtual void SetAddress (Mac48Address address)
 Set the MAC address. More...
 
virtual void SetBssid (Mac48Address bssid)
 Set the Basic Service Set Identification. More...
 
virtual void SetChannelAccessManager (const Ptr< ChannelAccessManager > channelAccessManager)
 Set the channel access manager to use. More...
 
virtual void SetDroppedMpduCallback (DroppedMpdu callback)
 Set the callback to invoke when an MPDU is dropped. More...
 
virtual void SetMacRxMiddle (const Ptr< MacRxMiddle > rxMiddle)
 Set the MAC RX Middle to use. More...
 
virtual void SetMacTxMiddle (const Ptr< MacTxMiddle > txMiddle)
 Set the MAC TX Middle to use. More...
 
void SetPromisc (void)
 Enable promiscuous mode. More...
 
virtual void SetProtectionManager (Ptr< WifiProtectionManager > protectionManager)
 Set the Protection Manager to use. More...
 
virtual void SetWifiPhy (const Ptr< WifiPhy > phy)
 Set the PHY layer to use. More...
 
- Public Member Functions inherited from ns3::Object
 Object ()
 Constructor. More...
 
virtual ~Object ()
 Destructor. More...
 
void AggregateObject (Ptr< Object > other)
 Aggregate two Objects together. More...
 
void Dispose (void)
 Dispose of this Object. More...
 
AggregateIterator GetAggregateIterator (void) const
 Get an iterator to the Objects aggregated to this one. More...
 
virtual TypeId GetInstanceTypeId (void) const
 Get the most derived TypeId for this Object. More...
 
template<typename T >
Ptr< T > GetObject (void) const
 Get a pointer to the requested aggregated Object. More...
 
template<typename T >
Ptr< T > GetObject (TypeId tid) const
 Get a pointer to the requested aggregated Object by TypeId. More...
 
template<>
Ptr< ObjectGetObject () const
 
template<>
Ptr< ObjectGetObject (TypeId tid) const
 
void Initialize (void)
 Invoke DoInitialize on all Objects aggregated to this one. More...
 
bool IsInitialized (void) const
 Check if the object has been initialized. More...
 
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount ()
 Default constructor. More...
 
 SimpleRefCount (const SimpleRefCount &o)
 Copy constructor. More...
 
uint32_t GetReferenceCount (void) const
 Get the reference count of the object. More...
 
SimpleRefCountoperator= (const SimpleRefCount &o)
 Assignment operator. More...
 
void Ref (void) const
 Increment the reference count. More...
 
void Unref (void) const
 Decrement the reference count. More...
 
- Public Member Functions inherited from ns3::ObjectBase
virtual ~ObjectBase ()
 Virtual destructor. More...
 
void GetAttribute (std::string name, AttributeValue &value) const
 Get the value of an attribute, raising fatal errors if unsuccessful. More...
 
bool GetAttributeFailSafe (std::string name, AttributeValue &value) const
 Get the value of an attribute without raising erros. More...
 
void SetAttribute (std::string name, const AttributeValue &value)
 Set a single attribute, raising fatal errors if unsuccessful. More...
 
bool SetAttributeFailSafe (std::string name, const AttributeValue &value)
 Set a single attribute without raising errors. More...
 
bool TraceConnect (std::string name, std::string context, const CallbackBase &cb)
 Connect a TraceSource to a Callback with a context. More...
 
bool TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
 Connect a TraceSource to a Callback without a context. More...
 
bool TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected with a context. More...
 
bool TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected without a context. More...
 

Static Public Member Functions

static TypeId GetTypeId (void)
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::QosFrameExchangeManager
static TypeId GetTypeId (void)
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::FrameExchangeManager
static TypeId GetTypeId (void)
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId (void)
 Register this type. More...
 
- Static Public Member Functions inherited from ns3::ObjectBase
static TypeId GetTypeId (void)
 Get the type ID. More...
 

Protected Types

typedef std::pair< Mac48Address, uint8_t > AgreementKey
 agreement key typedef (MAC address and TID) More...
 

Protected Member Functions

virtual void BlockAckTimeout (Ptr< WifiPsdu > psdu, const WifiTxVector &txVector)
 Called when the BlockAck timeout expires. More...
 
virtual void CtsTimeout (Ptr< WifiMacQueueItem > rts, const WifiTxVector &txVector) override
 Called when the CTS timeout expires. More...
 
virtual void DequeueMpdu (Ptr< WifiMacQueueItem > mpdu) override
 Dequeue the given MPDU from the queue in which it is stored. More...
 
void DequeuePsdu (Ptr< const WifiPsdu > psdu)
 Dequeue the MPDUs of the given PSDU from the queue in which they are stored. More...
 
virtual void DoDispose () override
 Destructor implementation. More...
 
virtual void EndReceiveAmpdu (Ptr< const WifiPsdu > psdu, const RxSignalInfo &rxSignalInfo, const WifiTxVector &txVector, const std::vector< bool > &perMpduStatus) override
 This method is called when the reception of an A-MPDU including multiple MPDUs is completed. More...
 
virtual void ForwardMpduDown (Ptr< WifiMacQueueItem > mpdu, WifiTxVector &txVector) override
 Forward an MPDU down to the PHY layer. More...
 
virtual void ForwardPsduDown (Ptr< const WifiPsdu > psdu, WifiTxVector &txVector)
 Forward a PSDU down to the PHY layer. More...
 
Ptr< BlockAckManagerGetBaManager (uint8_t tid) const
 Get the Block Ack Manager handling the given TID. More...
 
virtual Time GetPsduDurationId (Time txDuration, const WifiTxParameters &txParams) const
 Compute how to set the Duration/ID field of PSDUs that do not include fragments. More...
 
virtual Ptr< WifiPsduGetWifiPsdu (Ptr< WifiMacQueueItem > mpdu, const WifiTxVector &txVector) const
 Get a PSDU containing the given MPDU. More...
 
virtual void MissedBlockAck (Ptr< WifiPsdu > psdu, const WifiTxVector &txVector, bool &resetCw)
 Take necessary actions when a BlockAck is missed, such as scheduling a BlockAckReq frame or the retransmission of the unacknowledged frames. More...
 
virtual bool NeedSetupBlockAck (Mac48Address recipient, uint8_t tid)
 A Block Ack agreement needs to be established with the given recipient for the given TID if it does not already exist (or exists and is in state RESET) and: More...
 
virtual void NotifyPacketDiscarded (Ptr< const WifiMacQueueItem > mpdu) override
 Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callback. More...
 
virtual void NotifyReceivedNormalAck (Ptr< WifiMacQueueItem > mpdu) override
 Notify other components that an MPDU was acknowledged. More...
 
virtual void NotifyTxToEdca (Ptr< const WifiPsdu > psdu) const
 Notify the transmission of the given PSDU to the EDCAF associated with the AC the PSDU belongs to. More...
 
virtual void ReceiveMpdu (Ptr< WifiMacQueueItem > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
 This method handles the reception of an MPDU (possibly included in an A-MPDU) More...
 
virtual void RetransmitMpduAfterMissedAck (Ptr< WifiMacQueueItem > mpdu) const override
 Retransmit an MPDU that was not acknowledged. More...
 
virtual void RetransmitMpduAfterMissedCts (Ptr< WifiMacQueueItem > mpdu) const override
 Retransmit an MPDU that was not sent because a CTS was not received. More...
 
void SendAddBaRequest (Mac48Address recipient, uint8_t tid, uint16_t timeout, bool immediateBAck)
 Sends an ADDBA Request to establish a block ack agreement with STA addressed by recipient for TID tid. More...
 
void SendBlockAck (const RecipientBlockAckAgreement &agreement, Time durationId, WifiTxVector &blockAckTxVector, double rxSnr)
 Create a BlockAck frame with header equal to blockAck and start its transmission. More...
 
virtual bool SendDataFrame (Ptr< const WifiMacQueueItem > peekedItem, Time availableTime, bool initialFrame)
 TODO Transmit a data frame, if data is available and its trasmission plus the response fits within the given available time, if the latter is not Time::Min() and this is not the initial frame of a TXOP. More...
 
void SendDelbaFrame (Mac48Address addr, uint8_t tid, bool byOriginator)
 Sends DELBA frame to cancel a block ack agreement with STA addressed by addr for TID tid. More...
 
virtual bool SendMpduFromBaManager (Ptr< QosTxop > edca, Time availableTime, bool initialFrame)
 If the Block Ack Manager associated with the given EDCA has a BlockAckReq frame to transmit (the duration of which plus the response fits within the given available time, if the latter is not Time::Min() and this is not the initial frame of a TXOP), transmit the frame and return true. More...
 
void SendPsduWithProtection (Ptr< WifiPsdu > psdu, WifiTxParameters &txParams)
 Send a PSDU (A-MPDU or BlockAckReq frame) requesting a BlockAck frame or a BlockAckReq frame followed by a BlockAck frame for the acknowledgment. More...
 
virtual void TransmissionSucceeded (void) override
 Take necessary actions upon a transmission success. More...
 
- Protected Member Functions inherited from ns3::QosFrameExchangeManager
virtual Time GetCtsToSelfDurationId (const WifiTxVector &ctsTxVector, Time txDuration, Time response) const override
 Compute how to set the Duration/ID field of a CTS-to-self frame to send to protect a frame transmitted with the given TX vector. More...
 
virtual Time GetFrameDurationId (const WifiMacHeader &header, uint32_t size, const WifiTxParameters &txParams, Ptr< Packet > fragmentedPacket) const override
 Compute how to set the Duration/ID field of a frame being transmitted with the given TX parameters. More...
 
virtual Time GetRtsDurationId (const WifiTxVector &rtsTxVector, Time txDuration, Time response) const override
 Compute how to set the Duration/ID field of an RTS frame to send to protect a frame transmitted with the given TX vector. More...
 
void PifsRecovery (void)
 Perform a PIFS recovery as a response to transmission failure within a TXOP. More...
 
virtual void PreProcessFrame (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Perform actions that are possibly needed when receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder). More...
 
virtual bool SendCfEndIfNeeded (void)
 Send a CF-End frame to indicate the completion of the TXOP, provided that the remaining duration is long enough to transmit this frame. More...
 
virtual void SetTxopHolder (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector)
 Set the TXOP holder, if needed, based on the received frame. More...
 
virtual bool StartTransmission (Ptr< QosTxop > edca, Time txopDuration)
 Request the FrameExchangeManager to start a frame exchange sequence. More...
 
virtual void TransmissionFailed (void) override
 Take necessary actions upon a transmission failure. More...
 
- Protected Member Functions inherited from ns3::FrameExchangeManager
void DoSendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiTxVector &ctsTxVector, double rtsSnr)
 Send CTS after receiving RTS. More...
 
Ptr< WifiMacQueueItemGetFirstFragmentIfNeeded (Ptr< WifiMacQueueItem > mpdu)
 Fragment the given MPDU if needed. More...
 
Ptr< WifiMacQueueItemGetNextFragment (void)
 Get the next fragment of the current MSDU. More...
 
virtual Time GetTxDuration (uint32_t ppduPayloadSize, Mac48Address receiver, const WifiTxParameters &txParams) const
 Get the updated TX duration of the frame associated with the given TX parameters if the size of the PSDU addressed to the given receiver becomes ppduPayloadSize. More...
 
virtual void NavResetTimeout (void)
 Reset the NAV upon expiration of the NAV reset timer. More...
 
void NormalAckTimeout (Ptr< WifiMacQueueItem > mpdu, const WifiTxVector &txVector)
 Called when the Ack timeout expires. More...
 
virtual void ReceivedNormalAck (Ptr< WifiMacQueueItem > mpdu, const WifiTxVector &txVector, const WifiTxVector &ackTxVector, const RxSignalInfo &rxInfo, double snr)
 Perform the actions needed when a Normal Ack is received. More...
 
void SendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiMode rtsTxMode, double rtsSnr)
 Send CTS after receiving RTS. More...
 
void SendCtsToSelf (const WifiTxParameters &txParams)
 Send CTS for a CTS-to-self mechanism. More...
 
void SendMpduWithProtection (Ptr< WifiMacQueueItem > mpdu, WifiTxParameters &txParams)
 Send an MPDU with the given TX parameters (with the specified protection). More...
 
void SendNormalAck (const WifiMacHeader &hdr, const WifiTxVector &dataTxVector, double dataSnr)
 Send Normal Ack. More...
 
void SendRts (const WifiTxParameters &txParams)
 Send RTS to begin RTS-CTS-Data-Ack transaction. More...
 
virtual void UpdateNav (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector)
 Update the NAV, if needed, based on the Duration/ID of the given psdu. More...
 
void UpdateTxDuration (Mac48Address receiver, WifiTxParameters &txParams) const
 Update the TX duration field of the given TX parameters after that the PSDU addressed to the given receiver has changed. More...
 
- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 Copy an Object. More...
 
virtual void DoInitialize (void)
 Initialize() implementation. More...
 
virtual void NotifyNewAggregate (void)
 Notify all Objects aggregated to this one of a new Object being aggregated. More...
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 Complete construction of ObjectBase; invoked by derived classes. More...
 
virtual void NotifyConstructionCompleted (void)
 Notifier called once the ObjectBase is fully constructed. More...
 

Protected Attributes

std::map< AgreementKey, RecipientBlockAckAgreementm_agreements
 agreements More...
 
Ptr< MpduAggregatorm_mpduAggregator
 A-MPDU aggregator. More...
 
Ptr< MsduAggregatorm_msduAggregator
 A-MSDU aggregator. More...
 
- Protected Attributes inherited from ns3::QosFrameExchangeManager
Ptr< QosTxopm_edca
 the EDCAF that gained channel access More...
 
Mac48Address m_txopHolder
 MAC address of the TXOP holder. More...
 
- Protected Attributes inherited from ns3::FrameExchangeManager
AckedMpdu m_ackedMpduCallback
 the acknowledged MPDU callback More...
 
Mac48Address m_bssid
 BSSID address (Mac48Address) More...
 
Ptr< ChannelAccessManagerm_channelAccessManager
 the channel access manager More...
 
Ptr< Txopm_dcf
 the DCF/EDCAF that gained channel access More...
 
DroppedMpdu m_droppedMpduCallback
 the dropped MPDU callback More...
 
Ptr< RegularWifiMacm_mac
 the MAC layer on this station More...
 
Time m_navEnd
 NAV expiration time. More...
 
EventId m_navResetEvent
 the event to reset the NAV after an RTS More...
 
Ptr< WifiPhym_phy
 the PHY layer on this station More...
 
bool m_promisc
 Flag if the device is operating in promiscuous mode. More...
 
Ptr< MacRxMiddlem_rxMiddle
 the MAC RX Middle on this station More...
 
Mac48Address m_self
 the MAC address of this device More...
 
Ptr< MacTxMiddlem_txMiddle
 the MAC TX Middle on this station More...
 
WifiTxTimer m_txTimer
 the timer set upon frame transmission More...
 

Private Member Functions

void SendPsdu (void)
 Send the current PSDU, which can be acknowledged by a BlockAck frame or followed by a BlockAckReq frame and a BlockAck frame. More...
 

Private Attributes

Ptr< WifiPsdum_psdu
 the A-MPDU being transmitted More...
 
WifiTxParameters m_txParams
 the TX parameters for the current frame More...
 

Friends

class ::AmpduAggregationTest
 allow AmpduAggregationTest class access More...
 
class ::HeAggregationTest
 allow HeAggregationTest class access More...
 
class ::TwoLevelAggregationTest
 allow TwoLevelAggregationTest class access More...
 

Additional Inherited Members

- Public Types inherited from ns3::FrameExchangeManager
typedef Callback< void, Ptr< const WifiMacQueueItem > > AckedMpdu
 typedef for a callback to invoke when an MPDU is successfully acknowledged. More...
 
typedef Callback< void, WifiMacDropReason, Ptr< const WifiMacQueueItem > > DroppedMpdu
 typedef for a callback to invoke when an MPDU is dropped. More...
 

Detailed Description

HtFrameExchangeManager handles the frame exchange sequences for HT stations.


Introspection did not find any typical Config paths.


No Attributes are defined for this type.

Attributes defined in parent class ns3::QosFrameExchangeManager

  • PifsRecovery: Perform a PIFS recovery as a response to transmission failure within a TXOP
    • Set with class: BooleanValue
    • Underlying type: bool
    • Initial value: true
    • Flags: construct write read

No TraceSources are defined for this type.
Size of this type is 696 bytes (on a 64-bit architecture).

Definition at line 44 of file ht-frame-exchange-manager.h.

Member Typedef Documentation

◆ AgreementKey

typedef std::pair<Mac48Address, uint8_t> ns3::HtFrameExchangeManager::AgreementKey
protected

agreement key typedef (MAC address and TID)

Definition at line 371 of file ht-frame-exchange-manager.h.

Constructor & Destructor Documentation

◆ HtFrameExchangeManager()

ns3::HtFrameExchangeManager::HtFrameExchangeManager ( )

Definition at line 54 of file ht-frame-exchange-manager.cc.

References m_mpduAggregator, m_msduAggregator, and NS_LOG_FUNCTION.

◆ ~HtFrameExchangeManager()

ns3::HtFrameExchangeManager::~HtFrameExchangeManager ( )
virtual

Definition at line 61 of file ht-frame-exchange-manager.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ BlockAckTimeout()

void ns3::HtFrameExchangeManager::BlockAckTimeout ( Ptr< WifiPsdu psdu,
const WifiTxVector txVector 
)
protectedvirtual

Called when the BlockAck timeout expires.

Parameters
psduthe PSDU (BlockAckReq or A-MPDU) that solicited a BlockAck response
txVectorthe TXVECTOR used to send the PSDU that solicited a BlockAck response

Definition at line 1115 of file ht-frame-exchange-manager.cc.

References ns3::WifiPsdu::begin(), ns3::QosFrameExchangeManager::m_edca, ns3::FrameExchangeManager::m_mac, m_psdu, MissedBlockAck(), NS_ASSERT, NS_LOG_FUNCTION, ns3::Txop::ResetCw(), ns3::QosFrameExchangeManager::TransmissionFailed(), and ns3::Txop::UpdateFailedCw().

Referenced by SendPsdu().

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◆ CalculateAcknowledgmentTime()

void ns3::HtFrameExchangeManager::CalculateAcknowledgmentTime ( WifiAcknowledgment acknowledgment) const
overridevirtual

◆ CreateBlockAckAgreement()

void ns3::HtFrameExchangeManager::CreateBlockAckAgreement ( const MgtAddBaResponseHeader respHdr,
Mac48Address  originator,
uint16_t  startingSeq 
)
Parameters
respHdrAdd block ack response from originator (action frame).
originatorAddress of peer station involved in block ack mechanism.
startingSeqSequence number of the first MPDU of all packets for which block ack was negotiated.

This function is typically invoked only by ns3::RegularWifiMac when the STA (which may be non-AP in ESS, or in an IBSS) has received an ADDBA Request frame and is transmitting an ADDBA Response frame. At this point MacLow must allocate buffers to collect all correctly received packets belonging to the category for which block ack was negotiated.

Definition at line 284 of file ht-frame-exchange-manager.cc.

References GetBaManager(), ns3::MgtAddBaResponseHeader::GetBufferSize(), ns3::MgtAddBaResponseHeader::GetTid(), ns3::MgtAddBaResponseHeader::GetTimeout(), ns3::MgtAddBaResponseHeader::IsAmsduSupported(), ns3::MgtAddBaResponseHeader::IsImmediateBlockAck(), m_agreements, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_rxMiddle, ns3::MakeCallback(), ns3::MicroSeconds(), NS_LOG_FUNCTION, ns3::Simulator::Schedule(), SendDelbaFrame(), ns3::RecipientBlockAckAgreement::SetMacRxMiddle(), and timeout.

Referenced by SendAddBaResponse().

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◆ CtsTimeout()

void ns3::HtFrameExchangeManager::CtsTimeout ( Ptr< WifiMacQueueItem rts,
const WifiTxVector txVector 
)
overrideprotectedvirtual

◆ DequeueMpdu()

void ns3::HtFrameExchangeManager::DequeueMpdu ( Ptr< WifiMacQueueItem mpdu)
overrideprotectedvirtual

Dequeue the given MPDU from the queue in which it is stored.

Parameters
mpduthe given MPDU

Reimplemented from ns3::FrameExchangeManager.

Definition at line 879 of file ht-frame-exchange-manager.cc.

References DequeuePsdu().

Referenced by AmpduAggregationTest::DoRun(), and TwoLevelAggregationTest::DoRun().

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◆ DequeuePsdu()

void ns3::HtFrameExchangeManager::DequeuePsdu ( Ptr< const WifiPsdu psdu)
protected

Dequeue the MPDUs of the given PSDU from the queue in which they are stored.

Parameters
psduthe given PSDU

Definition at line 885 of file ht-frame-exchange-manager.cc.

References ns3::WifiMacQueue::Dequeue(), ns3::WifiMacQueueItem::QueueIteratorPair::it, NS_ASSERT, NS_LOG_DEBUG, ns3::PeekPointer(), and ns3::WifiMacQueueItem::QueueIteratorPair::queue.

Referenced by CtsTimeout(), DequeueMpdu(), AmpduAggregationTest::DoRun(), TwoLevelAggregationTest::DoRun(), HeAggregationTest::DoRunSubTest(), and ForwardPsduDown().

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◆ DestroyBlockAckAgreement()

void ns3::HtFrameExchangeManager::DestroyBlockAckAgreement ( Mac48Address  originator,
uint8_t  tid 
)

Destroy a Block Ack agreement.

Parameters
originatorthe originator MAC address
tidthe TID associated with the Block Ack agreement

Definition at line 318 of file ht-frame-exchange-manager.cc.

References m_agreements, and NS_LOG_FUNCTION.

Referenced by NotifyReceivedNormalAck(), and SendDelbaFrame().

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◆ DoDispose()

void ns3::HtFrameExchangeManager::DoDispose ( void  )
overrideprotectedvirtual

Destructor implementation.

This method is called by Dispose() or by the Object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overridden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.

It is safe to call GetObject() from within this method.

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 67 of file ht-frame-exchange-manager.cc.

References ns3::WifiTxParameters::Clear(), ns3::QosFrameExchangeManager::DoDispose(), m_mpduAggregator, m_msduAggregator, m_psdu, m_txParams, and NS_LOG_FUNCTION.

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◆ EndReceiveAmpdu()

void ns3::HtFrameExchangeManager::EndReceiveAmpdu ( Ptr< const WifiPsdu psdu,
const RxSignalInfo rxSignalInfo,
const WifiTxVector txVector,
const std::vector< bool > &  perMpduStatus 
)
overrideprotectedvirtual

This method is called when the reception of an A-MPDU including multiple MPDUs is completed.

Parameters
psduthe received PSDU
rxSignalInfothe info on the received signal (
See also
RxSignalInfo)
Parameters
txVectorTxVector of the received PSDU
perMpduStatusper MPDU reception status

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1420 of file ht-frame-exchange-manager.cc.

References ns3::WifiPsdu::GetAckPolicyForTid(), ns3::WifiPsdu::GetAddr2(), ns3::WifiPsdu::GetDuration(), ns3::WifiPsdu::GetNMpdus(), ns3::WifiPhy::GetSifs(), ns3::WifiPsdu::GetTids(), m_agreements, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_phy, ns3::WifiMacHeader::NORMAL_ACK, NS_ASSERT, NS_LOG_DEBUG, ns3::Simulator::Schedule(), SendBlockAck(), and ns3::RxSignalInfo::snr.

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◆ ForwardMpduDown()

void ns3::HtFrameExchangeManager::ForwardMpduDown ( Ptr< WifiMacQueueItem mpdu,
WifiTxVector txVector 
)
overrideprotectedvirtual

Forward an MPDU down to the PHY layer.

Parameters
mpduthe MPDU to forward down
txVectorthe TXVECTOR used to transmit the MPDU

Reimplemented from ns3::FrameExchangeManager.

Definition at line 507 of file ht-frame-exchange-manager.cc.

References ForwardPsduDown(), and GetWifiPsdu().

Referenced by SendPsdu().

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◆ ForwardPsduDown()

void ns3::HtFrameExchangeManager::ForwardPsduDown ( Ptr< const WifiPsdu psdu,
WifiTxVector txVector 
)
protectedvirtual

Forward a PSDU down to the PHY layer.

Also, notify the Block Ack Manager of the transmission of the constituent MPDUs.

Parameters
psduthe PSDU to forward down
txVectorthe TXVECTOR used to transmit the MPDU

Definition at line 910 of file ht-frame-exchange-manager.cc.

References DequeuePsdu(), ns3::WifiPsdu::IsAggregate(), ns3::FrameExchangeManager::m_phy, NotifyTxToEdca(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::WifiPhy::Send(), and ns3::WifiTxVector::SetAggregation().

Referenced by ForwardMpduDown(), SendBlockAck(), and SendPsdu().

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◆ GetBaAgreementEstablished()

bool ns3::HtFrameExchangeManager::GetBaAgreementEstablished ( Mac48Address  originator,
uint8_t  tid 
) const

Return true if a Block Ack agreement has been established with the given originator for the given TID.

Parameters
originatorthe MAC address of the given originator
tidthe Traffic ID
Returns
true if a Block Ack agreement has been established with the given originator for the given TID

Definition at line 1282 of file ht-frame-exchange-manager.cc.

References m_agreements.

◆ GetBaManager()

Ptr< BlockAckManager > ns3::HtFrameExchangeManager::GetBaManager ( uint8_t  tid) const
protected

Get the Block Ack Manager handling the given TID.

Parameters
tidthe given TID
Returns
the Block Ack Manager handling the given TID

Definition at line 98 of file ht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_mac.

Referenced by CreateBlockAckAgreement(), MissedBlockAck(), NotifyPacketDiscarded(), NotifyReceivedNormalAck(), ReceiveMpdu(), SendAddBaRequest(), and SendDelbaFrame().

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◆ GetBlockAckType()

BlockAckType ns3::HtFrameExchangeManager::GetBlockAckType ( Mac48Address  originator,
uint8_t  tid 
) const

Get the type of BlockAck frames sent to the given originator.

Parameters
originatorthe MAC address of the given originator
tidthe Traffic ID
Returns
the type of BlockAck frames sent to the given originator

Definition at line 1288 of file ht-frame-exchange-manager.cc.

References m_agreements, and NS_ABORT_MSG_IF.

◆ GetMpduAggregator()

Ptr< MpduAggregator > ns3::HtFrameExchangeManager::GetMpduAggregator ( void  ) const

Returns the aggregator used to construct A-MPDU subframes.

Returns
the aggregator used to construct A-MPDU subframes.

Definition at line 92 of file ht-frame-exchange-manager.cc.

References m_mpduAggregator.

Referenced by AmpduAggregationTest::DoRun(), TwoLevelAggregationTest::DoRun(), and HeAggregationTest::DoRunSubTest().

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◆ GetMsduAggregator()

Ptr< MsduAggregator > ns3::HtFrameExchangeManager::GetMsduAggregator ( void  ) const

Returns the aggregator used to construct A-MSDU subframes.

Returns
the aggregator used to construct A-MSDU subframes.

Definition at line 86 of file ht-frame-exchange-manager.cc.

References m_msduAggregator.

Referenced by TwoLevelAggregationTest::DoRun().

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◆ GetPsduDurationId()

Time ns3::HtFrameExchangeManager::GetPsduDurationId ( Time  txDuration,
const WifiTxParameters txParams 
) const
protectedvirtual

Compute how to set the Duration/ID field of PSDUs that do not include fragments.

Parameters
txDurationthe duration of the PSDU transmission
txParamsthe TX parameters used to send the PSDU

Definition at line 677 of file ht-frame-exchange-manager.cc.

References ns3::QosTxop::GetRemainingTxop(), ns3::Txop::GetTxopLimit(), ns3::Time::IsZero(), ns3::WifiTxParameters::m_acknowledgment, ns3::QosFrameExchangeManager::m_edca, max, ns3::Time::Min(), NS_ASSERT, NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by SendPsdu().

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◆ GetSupportedBaBufferSize()

uint16_t ns3::HtFrameExchangeManager::GetSupportedBaBufferSize ( void  ) const
virtual

Get the maximum supported buffer size for a Block Ack agreement.

This value is typically included in ADDBA Response frames.

Returns
the maximum supported buffer size for a Block Ack agreement

Reimplemented in ns3::HeFrameExchangeManager.

Definition at line 241 of file ht-frame-exchange-manager.cc.

Referenced by SendAddBaResponse().

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◆ GetTypeId()

TypeId ns3::HtFrameExchangeManager::GetTypeId ( void  )
static

Get the type ID.

Returns
the object TypeId

Definition at line 44 of file ht-frame-exchange-manager.cc.

References ns3::TypeId::SetParent().

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◆ GetWifiPsdu()

Ptr< WifiPsdu > ns3::HtFrameExchangeManager::GetWifiPsdu ( Ptr< WifiMacQueueItem mpdu,
const WifiTxVector txVector 
) const
protectedvirtual

Get a PSDU containing the given MPDU.

Parameters
mpduthe given MPDU
txVectorthe TXVECTOR to use to send the MPDU
Returns
a PSDU containing the given MPDU

Reimplemented in ns3::VhtFrameExchangeManager.

Definition at line 513 of file ht-frame-exchange-manager.cc.

Referenced by ForwardMpduDown(), and SendBlockAck().

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◆ IsWithinAmpduSizeLimit()

bool ns3::HtFrameExchangeManager::IsWithinAmpduSizeLimit ( uint32_t  ampduSize,
Mac48Address  receiver,
uint8_t  tid,
WifiModulationClass  modulation 
) const
virtual

Check whether an A-MPDU of the given size meets the constraint on the maximum size for A-MPDUs sent to the given receiver, belonging to the given TID and transmitted using the given modulation class.

Parameters
ampduSizethe size in bytes of the A-MPDU.
receiverthe address of the station that is the receiver of the A-MPDU
tidthe TID of the A-MPDU
modulationthe modulation class used to transmit the A-MPDU
Returns
true if the constraint on the max A-MPDU size is met.

Definition at line 972 of file ht-frame-exchange-manager.cc.

References m_mpduAggregator, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by IsWithinLimitsIfAddMpdu(), and IsWithinLimitsIfAggregateMsdu().

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◆ IsWithinLimitsIfAddMpdu()

bool ns3::HtFrameExchangeManager::IsWithinLimitsIfAddMpdu ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams,
Time  ppduDurationLimit 
) const
overridevirtual

Check if the PSDU obtained by aggregating the given MPDU to the PSDU specified by the given TX parameters meets the constraints on the maximum A-MPDU size and its transmission time does not exceed the given PPDU duration limit (if different than Time::Min()).

Parameters
mpduthe given MPDU
txParamsthe TX parameters
ppduDurationLimitthe constraint on the PPDU transmission time
Returns
true if the size and time constraints are met, false otherwise

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 929 of file ht-frame-exchange-manager.cc.

References ns3::WifiTxVector::GetModulationClass(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiTxParameters::GetSize(), ns3::WifiTxParameters::GetSizeIfAddMpdu(), IsWithinAmpduSizeLimit(), ns3::QosFrameExchangeManager::IsWithinSizeAndTimeLimits(), ns3::WifiTxParameters::m_txVector, NS_ABORT_MSG, NS_ASSERT, NS_LOG_FUNCTION, and ns3::WifiTxParameters::PsduInfo::seqNumbers.

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◆ IsWithinLimitsIfAggregateMsdu()

bool ns3::HtFrameExchangeManager::IsWithinLimitsIfAggregateMsdu ( Ptr< const WifiMacQueueItem msdu,
const WifiTxParameters txParams,
Time  ppduDurationLimit 
) const
virtual

Check if the PSDU obtained by aggregating the given MSDU to the PSDU specified by the given TX parameters meets the constraints on the maximum A-MSDU size and its transmission time does not exceed the given PPDU duration limit (if different than Time::Min()).

Parameters
msduthe given MSDU
txParamsthe TX parameters
ppduDurationLimitthe constraint on the PPDU transmission time
Returns
true if the size and time constraints are met, false otherwise

Definition at line 1070 of file ht-frame-exchange-manager.cc.

References ns3::WifiTxParameters::PsduInfo::ampduSize, ns3::WifiTxVector::GetModulationClass(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiTxParameters::GetSizeIfAggregateMsdu(), IsWithinAmpduSizeLimit(), ns3::QosFrameExchangeManager::IsWithinSizeAndTimeLimits(), m_msduAggregator, ns3::WifiTxParameters::m_txVector, NS_ASSERT, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by TryAggregateMsdu().

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◆ MissedBlockAck()

void ns3::HtFrameExchangeManager::MissedBlockAck ( Ptr< WifiPsdu psdu,
const WifiTxVector txVector,
bool &  resetCw 
)
protectedvirtual

Take necessary actions when a BlockAck is missed, such as scheduling a BlockAckReq frame or the retransmission of the unacknowledged frames.

Parameters
psduthe PSDU (BlockAckReq or A-MPDU) that solicited a BlockAck response
txVectorthe TXVECTOR used to send the PSDU that solicited a BlockAck response
[out]resetCwtrue if we shall stop retransmitting the PSDU

Definition at line 1140 of file ht-frame-exchange-manager.cc.

References ns3::WifiPsdu::begin(), ns3::OriginatorBlockAckAgreement::ESTABLISHED, ns3::WifiPsdu::GetAddr1(), GetBaManager(), ns3::WifiPsdu::GetHeader(), ns3::WifiPsdu::GetNMpdus(), ns3::WifiPsdu::GetPayload(), ns3::CtrlBAckRequestHeader::GetTidInfo(), ns3::WifiPsdu::GetTids(), ns3::WifiMacHeader::IsBlockAckReq(), ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::NotifyPacketDiscarded(), NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Packet::PeekHeader(), ns3::PeekPointer(), ns3::QosTxop::PrepareBlockAckRequest(), ns3::QosTxop::ScheduleBar(), ns3::WifiMacHeader::SetRetry(), and ns3::QosTxop::UseExplicitBarAfterMissedBlockAck().

Referenced by BlockAckTimeout().

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◆ NeedSetupBlockAck()

bool ns3::HtFrameExchangeManager::NeedSetupBlockAck ( Mac48Address  recipient,
uint8_t  tid 
)
protectedvirtual

A Block Ack agreement needs to be established with the given recipient for the given TID if it does not already exist (or exists and is in state RESET) and:

  • the number of packets in the queue reaches the BlockAckThreshold value OR
  • MPDU aggregation is enabled and there is more than one packet in the queue OR
  • the station is a VHT station
Returns
true if a Block Ack agreement needs to be established, false otherwise.

Definition at line 104 of file ht-frame-exchange-manager.cc.

References ns3::QosTxop::GetBaManager(), ns3::QosTxop::GetBlockAckThreshold(), ns3::Txop::GetWifiMacQueue(), ns3::FrameExchangeManager::m_mac, m_mpduAggregator, NS_LOG_FUNCTION, ns3::OriginatorBlockAckAgreement::RESET, and ns3::WIFI_MOD_CLASS_HT.

Referenced by StartFrameExchange().

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◆ NotifyPacketDiscarded()

void ns3::HtFrameExchangeManager::NotifyPacketDiscarded ( Ptr< const WifiMacQueueItem mpdu)
overrideprotectedvirtual

Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callback.

Parameters
mpduthe discarded MPDU

Reimplemented from ns3::FrameExchangeManager.

Definition at line 594 of file ht-frame-exchange-manager.cc.

References ns3::WifiActionHeader::BLOCK_ACK, GetBaManager(), ns3::WifiActionHeader::GetCategory(), ns3::QosTxop::GetFailedAddBaTimeout(), ns3::GetTid(), ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::NotifyPacketDiscarded(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::OriginatorBlockAckAgreement::PENDING, ns3::QosTxop::ResetBa(), and ns3::Simulator::Schedule().

Referenced by CtsTimeout().

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◆ NotifyReceivedNormalAck()

◆ NotifyTxToEdca()

void ns3::HtFrameExchangeManager::NotifyTxToEdca ( Ptr< const WifiPsdu psdu) const
protectedvirtual

Notify the transmission of the given PSDU to the EDCAF associated with the AC the PSDU belongs to.

Parameters
psduthe PSDU to transmit

Definition at line 856 of file ht-frame-exchange-manager.cc.

References ns3::QosTxop::CompleteMpduTx(), ns3::FrameExchangeManager::m_mac, NS_LOG_FUNCTION, ns3::PeekPointer(), and ns3::QosTxop::SetQosQueueSize().

Referenced by ForwardPsduDown().

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◆ ReceiveMpdu()

void ns3::HtFrameExchangeManager::ReceiveMpdu ( Ptr< WifiMacQueueItem mpdu,
RxSignalInfo  rxSignalInfo,
const WifiTxVector txVector,
bool  inAmpdu 
)
overrideprotectedvirtual

This method handles the reception of an MPDU (possibly included in an A-MPDU)

Parameters
mpduthe received MPDU
rxSignalInfothe info on the received signal (
See also
RxSignalInfo)
Parameters
txVectorTxVector of the received PSDU
inAmpdutrue if the MPDU is part of an A-MPDU

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 1296 of file ht-frame-exchange-manager.cc.

References ns3::WifiTxTimer::Cancel(), ns3::SnrTag::Get(), ns3::WifiPsdu::GetAddr1(), ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::GetAddr2(), GetBaManager(), ns3::WifiMacHeader::GetDuration(), ns3::WifiMacQueueItem::GetHeader(), ns3::WifiPsdu::GetHeader(), ns3::WifiTxVector::GetMode(), ns3::WifiMacQueueItem::GetPacket(), ns3::WifiMacHeader::GetQosAckPolicy(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiTxTimer::GetReason(), ns3::WifiPhy::GetSifs(), ns3::CtrlBAckRequestHeader::GetStartingSequence(), ns3::CtrlBAckRequestHeader::GetTidInfo(), ns3::CtrlBAckResponseHeader::GetTidInfo(), ns3::WifiMacHeader::HasData(), ns3::WifiMacHeader::IsBlockAck(), ns3::WifiMacHeader::IsBlockAckReq(), ns3::WifiMacHeader::IsCtl(), ns3::WifiMacHeader::IsCts(), ns3::Mac48Address::IsGroup(), ns3::CtrlBAckRequestHeader::IsMultiTid(), ns3::WifiMacHeader::IsQosData(), ns3::WifiTxTimer::IsRunning(), m_agreements, ns3::FrameExchangeManager::m_channelAccessManager, ns3::QosFrameExchangeManager::m_edca, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_phy, m_psdu, ns3::FrameExchangeManager::m_self, m_txParams, ns3::FrameExchangeManager::m_txTimer, ns3::WifiTxParameters::m_txVector, ns3::WifiMacHeader::NORMAL_ACK, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, ns3::Packet::PeekHeader(), ns3::Packet::PeekPacketTag(), ns3::QosFrameExchangeManager::ReceiveMpdu(), ns3::Txop::ResetCw(), ns3::Simulator::Schedule(), SendBlockAck(), ns3::FrameExchangeManager::SendNormalAck(), SendPsdu(), ns3::RxSignalInfo::snr, TransmissionSucceeded(), ns3::WifiTxTimer::WAIT_BLOCK_ACK, and ns3::WifiTxTimer::WAIT_CTS.

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◆ RetransmitMpduAfterMissedAck()

void ns3::HtFrameExchangeManager::RetransmitMpduAfterMissedAck ( Ptr< WifiMacQueueItem mpdu) const
overrideprotectedvirtual

◆ RetransmitMpduAfterMissedCts()

void ns3::HtFrameExchangeManager::RetransmitMpduAfterMissedCts ( Ptr< WifiMacQueueItem mpdu) const
overrideprotectedvirtual

◆ SendAddBaRequest()

void ns3::HtFrameExchangeManager::SendAddBaRequest ( Mac48Address  recipient,
uint8_t  tid,
uint16_t  timeout,
bool  immediateBAck 
)
protected

◆ SendAddBaResponse()

void ns3::HtFrameExchangeManager::SendAddBaResponse ( const MgtAddBaRequestHeader reqHdr,
Mac48Address  originator 
)

This method can be called to accept a received ADDBA Request.

An ADDBA Response will be constructed and queued for transmission.

Parameters
reqHdra pointer to the received ADDBA Request header.
originatorthe MAC address of the originator.

Definition at line 191 of file ht-frame-exchange-manager.cc.

References ns3::Packet::AddHeader(), ns3::WifiActionHeader::BLOCK_ACK, ns3::WifiActionHeader::BLOCK_ACK_ADDBA_RESPONSE, ns3::WifiActionHeader::ActionValue::blockAck, CreateBlockAckAgreement(), ns3::MgtAddBaRequestHeader::GetStartingSequence(), GetSupportedBaBufferSize(), ns3::MgtAddBaRequestHeader::GetTid(), ns3::MgtAddBaRequestHeader::GetTimeout(), ns3::MgtAddBaRequestHeader::IsAmsduSupported(), ns3::MgtAddBaRequestHeader::IsImmediateBlockAck(), ns3::FrameExchangeManager::m_bssid, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_self, NS_LOG_FUNCTION, ns3::WifiActionHeader::SetAction(), ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetAddr2(), ns3::WifiMacHeader::SetAddr3(), ns3::MgtAddBaResponseHeader::SetAmsduSupport(), ns3::MgtAddBaResponseHeader::SetBufferSize(), ns3::MgtAddBaResponseHeader::SetDelayedBlockAck(), ns3::WifiMacHeader::SetDsNotFrom(), ns3::WifiMacHeader::SetDsNotTo(), ns3::MgtAddBaResponseHeader::SetImmediateBlockAck(), ns3::MgtAddBaResponseHeader::SetStatusCode(), ns3::StatusCode::SetSuccess(), ns3::MgtAddBaResponseHeader::SetTid(), ns3::MgtAddBaResponseHeader::SetTimeout(), ns3::WifiMacHeader::SetType(), and ns3::WIFI_MAC_MGT_ACTION.

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◆ SendBlockAck()

void ns3::HtFrameExchangeManager::SendBlockAck ( const RecipientBlockAckAgreement agreement,
Time  durationId,
WifiTxVector blockAckTxVector,
double  rxSnr 
)
protected

◆ SendDataFrame()

bool ns3::HtFrameExchangeManager::SendDataFrame ( Ptr< const WifiMacQueueItem peekedItem,
Time  availableTime,
bool  initialFrame 
)
protectedvirtual

TODO Transmit a data frame, if data is available and its trasmission plus the response fits within the given available time, if the latter is not Time::Min() and this is not the initial frame of a TXOP.

Parameters
peekedItemthe given non-broadcast QoS data frame
availableTimethe amount of time allowed for the frame exchange. Equals Time::Min() in case the TXOP limit is null
initialFrametrue if the frame being transmitted is the initial frame of the TXOP. This is used to determine whether the TXOP limit can be exceeded

Definition at line 430 of file ht-frame-exchange-manager.cc.

References ns3::WifiAcknowledgment::BAR_BLOCK_ACK, ns3::QosTxop::GetNextMpdu(), ns3::WifiTxParameters::m_acknowledgment, ns3::FrameExchangeManager::m_mac, m_mpduAggregator, ns3::WifiTxParameters::m_txVector, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::FrameExchangeManager::SendMpduWithProtection(), and SendPsduWithProtection().

Referenced by StartFrameExchange().

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◆ SendDelbaFrame()

void ns3::HtFrameExchangeManager::SendDelbaFrame ( Mac48Address  addr,
uint8_t  tid,
bool  byOriginator 
)
protected

◆ SendMpduFromBaManager()

bool ns3::HtFrameExchangeManager::SendMpduFromBaManager ( Ptr< QosTxop edca,
Time  availableTime,
bool  initialFrame 
)
protectedvirtual

If the Block Ack Manager associated with the given EDCA has a BlockAckReq frame to transmit (the duration of which plus the response fits within the given available time, if the latter is not Time::Min() and this is not the initial frame of a TXOP), transmit the frame and return true.

Otherwise, return false.

Parameters
edcathe EDCAF which has been granted the opportunity to transmit
availableTimethe amount of time allowed for the frame exchange. Equals Time::Min() in case the TXOP limit is null
initialFrametrue if the frame being transmitted is the initial frame of the TXOP. This is used to determine whether the TXOP limit can be exceeded

Definition at line 378 of file ht-frame-exchange-manager.cc.

References ns3::WifiAcknowledgment::acknowledgmentTime, ns3::WifiAcknowledgment::BLOCK_ACK, ns3::WifiBlockAck::blockAckTxVector, CalculateAcknowledgmentTime(), ns3::WifiPhy::CalculateTxDuration(), ns3::FrameExchangeManager::GetAckManager(), ns3::QosTxop::GetBaManager(), ns3::WifiPhy::GetPhyBand(), ns3::WifiPhy::GetSifs(), ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_phy, ns3::WifiTxParameters::m_txVector, ns3::Time::Min(), NS_ABORT_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, and SendPsduWithProtection().

Referenced by StartFrameExchange().

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◆ SendPsdu()

◆ SendPsduWithProtection()

void ns3::HtFrameExchangeManager::SendPsduWithProtection ( Ptr< WifiPsdu psdu,
WifiTxParameters txParams 
)
protected

Send a PSDU (A-MPDU or BlockAckReq frame) requesting a BlockAck frame or a BlockAckReq frame followed by a BlockAck frame for the acknowledgment.

Note that txParams is moved to m_txParams and hence is left in an undefined state.

Parameters
psduthe PSDU to send
txParamsthe TX parameters to use to transmit the PSDU

Definition at line 697 of file ht-frame-exchange-manager.cc.

References CalculateAcknowledgmentTime(), ns3::WifiProtection::CTS_TO_SELF, ns3::WifiTxParameters::m_acknowledgment, ns3::WifiTxParameters::m_protection, m_psdu, m_txParams, ns3::Time::Min(), ns3::WifiProtection::NONE, NS_ABORT_MSG, NS_ASSERT, NS_LOG_FUNCTION, ns3::PeekPointer(), ns3::WifiProtection::RTS_CTS, ns3::FrameExchangeManager::SendCtsToSelf(), SendPsdu(), ns3::FrameExchangeManager::SendRts(), and ns3::WifiAckManager::SetQosAckPolicy().

Referenced by SendDataFrame(), and SendMpduFromBaManager().

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◆ SetWifiMac()

void ns3::HtFrameExchangeManager::SetWifiMac ( const Ptr< RegularWifiMac mac)
overridevirtual

Set the MAC layer to use.

Parameters
macthe MAC layer to use

Reimplemented from ns3::FrameExchangeManager.

Definition at line 78 of file ht-frame-exchange-manager.cc.

References m_mpduAggregator, m_msduAggregator, third::mac, and ns3::FrameExchangeManager::SetWifiMac().

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◆ StartFrameExchange()

bool ns3::HtFrameExchangeManager::StartFrameExchange ( Ptr< QosTxop edca,
Time  availableTime,
bool  initialFrame 
)
overridevirtual

Start a frame exchange (including protection frames and acknowledgment frames as needed) that fits within the given availableTime (if different than Time::Min()).

Parameters
edcathe EDCAF which has been granted the opportunity to transmit
availableTimethe amount of time allowed for the frame exchange. Pass Time::Min() in case the TXOP limit is null
initialFrametrue if the frame being transmitted is the initial frame of the TXOP. This is used to determine whether the TXOP limit can be exceeded
Returns
true if a frame exchange is started, false otherwise

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 332 of file ht-frame-exchange-manager.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::QosTxop::GetBlockAckInactivityTimeout(), ns3::WifiMacHeader::GetQosTid(), ns3::Mac48Address::IsGroup(), ns3::WifiMacHeader::IsQosData(), ns3::FrameExchangeManager::m_mac, NeedSetupBlockAck(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosTxop::PeekNextMpdu(), SendAddBaRequest(), SendDataFrame(), SendMpduFromBaManager(), and ns3::QosFrameExchangeManager::StartFrameExchange().

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◆ TransmissionSucceeded()

void ns3::HtFrameExchangeManager::TransmissionSucceeded ( void  )
overrideprotectedvirtual

Take necessary actions upon a transmission success.

A non-QoS station transmits the next fragment, if any, or releases the channel, otherwise.

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 571 of file ht-frame-exchange-manager.cc.

References ns3::QosTxop::GetBaManager(), ns3::WifiPhy::GetSifs(), ns3::Txop::GetTxopLimit(), ns3::Time::IsZero(), ns3::QosFrameExchangeManager::m_edca, ns3::FrameExchangeManager::m_phy, NS_LOG_DEBUG, ns3::Simulator::Schedule(), ns3::Seconds(), ns3::QosFrameExchangeManager::StartTransmission(), and ns3::QosFrameExchangeManager::TransmissionSucceeded().

Referenced by ReceiveMpdu(), and SendPsdu().

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◆ TryAggregateMsdu()

bool ns3::HtFrameExchangeManager::TryAggregateMsdu ( Ptr< const WifiMacQueueItem msdu,
WifiTxParameters txParams,
Time  availableTime 
) const
virtual

Check if aggregating an MSDU to the current MPDU (as specified by the given TX parameters) does not violate the size and time constraints, while taking into account the possibly updated protection and acknowledgment methods.

If size and time constraints are met, the TX parameters are modified with the updated protection and acknowledgment methods.

Parameters
msduthe given MSDU
txParamsthe TX parameters
availableTimethe constraint on the TX time of the PSDU, if different than Time::Min()
Returns
true if aggregating an MSDU to the current PSDU does not violate the size and time constraints

Definition at line 995 of file ht-frame-exchange-manager.cc.

References ns3::WifiTxParameters::AggregateMsdu(), CalculateAcknowledgmentTime(), ns3::FrameExchangeManager::CalculateProtectionTime(), ns3::FrameExchangeManager::GetAckManager(), ns3::FrameExchangeManager::GetProtectionManager(), IsWithinLimitsIfAggregateMsdu(), ns3::WifiTxParameters::m_acknowledgment, ns3::WifiTxParameters::m_protection, ns3::Time::Min(), NS_ASSERT, NS_LOG_FUNCTION, and ns3::FrameExchangeManager::UpdateTxDuration().

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Friends And Related Function Documentation

◆ ::AmpduAggregationTest

friend class ::AmpduAggregationTest
friend

allow AmpduAggregationTest class access

Definition at line 48 of file ht-frame-exchange-manager.h.

◆ ::HeAggregationTest

friend class ::HeAggregationTest
friend

allow HeAggregationTest class access

Definition at line 52 of file ht-frame-exchange-manager.h.

◆ ::TwoLevelAggregationTest

friend class ::TwoLevelAggregationTest
friend

allow TwoLevelAggregationTest class access

Definition at line 50 of file ht-frame-exchange-manager.h.

Member Data Documentation

◆ m_agreements

std::map<AgreementKey, RecipientBlockAckAgreement> ns3::HtFrameExchangeManager::m_agreements
protected

◆ m_mpduAggregator

Ptr<MpduAggregator> ns3::HtFrameExchangeManager::m_mpduAggregator
protected

◆ m_msduAggregator

Ptr<MsduAggregator> ns3::HtFrameExchangeManager::m_msduAggregator
protected

◆ m_psdu

Ptr<WifiPsdu> ns3::HtFrameExchangeManager::m_psdu
private

the A-MPDU being transmitted

Definition at line 384 of file ht-frame-exchange-manager.h.

Referenced by BlockAckTimeout(), CtsTimeout(), DoDispose(), ReceiveMpdu(), SendPsdu(), and SendPsduWithProtection().

◆ m_txParams

WifiTxParameters ns3::HtFrameExchangeManager::m_txParams
private

the TX parameters for the current frame

Definition at line 385 of file ht-frame-exchange-manager.h.

Referenced by DoDispose(), ReceiveMpdu(), SendPsdu(), and SendPsduWithProtection().


The documentation for this class was generated from the following files: