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ns3::EhtFrameExchangeManager Class Reference

EhtFrameExchangeManager handles the frame exchange sequences for EHT stations. More...

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

+ Inheritance diagram for ns3::EhtFrameExchangeManager:
+ Collaboration diagram for ns3::EhtFrameExchangeManager:

Public Member Functions

 EhtFrameExchangeManager ()
 
 ~EhtFrameExchangeManager () override
 
bool CheckEmlsrClientStartingTxop (const WifiMacHeader &hdr, const WifiTxVector &txVector)
 Check if the frame received (or being received) is sent by an EMLSR client to start an UL TXOP.
 
Ptr< WifiMpduCreateAliasIfNeeded (Ptr< WifiMpdu > mpdu) const override
 Create an alias of the given MPDU for transmission by this Frame Exchange Manager.
 
void EmlsrSwitchToListening (Mac48Address address, const Time &delay)
 This method is intended to be called when an AP MLD detects that an EMLSR client previously involved in the current TXOP will start waiting for the transition delay interval (to switch back to listening operation) after the given delay.
 
bool GetEmlsrSwitchToListening (Ptr< const WifiPsdu > psdu, uint16_t aid, const Mac48Address &address) const
 
std::optional< dBm_uGetMostRecentRssi (const Mac48Address &address) const override
 Get the RSSI of the most recent packet received from the station having the given address.
 
EventIdGetOngoingTxopEndEvent ()
 
void NotifySwitchingEmlsrLink (Ptr< WifiPhy > phy, uint8_t linkId, Time delay)
 Notify that the given PHY will switch channel to operate on another EMLSR link after the given delay.
 
void SendEmlOmn (const Mac48Address &dest, const MgtEmlOmn &frame)
 Send an EML Operating Mode Notification frame to the given station.
 
void SetIcfPaddingAndTxVector (CtrlTriggerHeader &trigger, WifiTxVector &txVector) const
 Set the padding and the TXVECTOR of the given Trigger Frame, in case it is an Initial Control Frame for some EMLSR client(s).
 
void SetLinkId (uint8_t linkId) override
 Set the ID of the link this Frame Exchange Manager is associated with.
 
bool StartTransmission (Ptr< Txop > edca, MHz_u allowedWidth) override
 Request the FrameExchangeManager to start a frame exchange sequence.
 
bool UsingOtherEmlsrLink () const
 
- Public Member Functions inherited from ns3::HeFrameExchangeManager
 HeFrameExchangeManager ()
 
 ~HeFrameExchangeManager () override
 
void CalculateAcknowledgmentTime (WifiAcknowledgment *acknowledgment) const override
 Calculate the time required to acknowledge a frame according to the given acknowledgment method.
 
void CalculateProtectionTime (WifiProtection *protection) const override
 Calculate the time required to protect a frame according to the given protection method.
 
std::optional< Mac48AddressFindTxopHolder (const WifiMacHeader &hdr, const WifiTxVector &txVector) override
 Determine the holder of the TXOP, if possible, based on the received frame.
 
std::set< Mac48AddressGetTfRecipients (const CtrlTriggerHeader &trigger) const
 Get the (link) address of the non-AP stations solicited by the given Trigger Frame.
 
bool IsIntraBssPpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) const
 Return whether the received frame is classified as intra-BSS.
 
void SetMultiUserScheduler (const Ptr< MultiUserScheduler > muScheduler)
 Set the Multi-user Scheduler associated with this Frame Exchange Manager.
 
virtual void SetTargetRssi (CtrlTriggerHeader &trigger) const
 Set the UL Target RSSI subfield of every User Info fields of the given Trigger Frame to the most recent RSSI observed from the corresponding station.
 
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()).
 
bool UlMuCsMediumIdle (const CtrlTriggerHeader &trigger) const
 This method is intended to be called a SIFS after the reception of a Trigger Frame to determine whether the station is allowed to respond.
 
bool VirtualCsMediumIdle () const override
 
- Public Member Functions inherited from ns3::VhtFrameExchangeManager
 VhtFrameExchangeManager ()
 
 ~VhtFrameExchangeManager () override
 
Ptr< WifiPsduGetWifiPsdu (Ptr< WifiMpdu > mpdu, const WifiTxVector &txVector) const override
 Get a PSDU containing the given MPDU.
 
- Public Member Functions inherited from ns3::HtFrameExchangeManager
 HtFrameExchangeManager ()
 
 ~HtFrameExchangeManager () override
 
void CalculateAcknowledgmentTime (WifiAcknowledgment *acknowledgment) const override
 Calculate the time required to acknowledge a frame according to the given acknowledgment method.
 
Ptr< WifiMpduGetBar (AcIndex ac, std::optional< uint8_t > optTid=std::nullopt, std::optional< Mac48Address > optAddress=std::nullopt)
 Get the next BlockAckRequest or MU-BAR Trigger Frame to send, if any.
 
Ptr< MpduAggregatorGetMpduAggregator () const
 Returns the aggregator used to construct A-MPDU subframes.
 
Ptr< MsduAggregatorGetMsduAggregator () const
 Returns the aggregator used to construct A-MSDU subframes.
 
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.
 
bool IsWithinLimitsIfAddMpdu (Ptr< const WifiMpdu > 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()).
 
virtual bool IsWithinLimitsIfAggregateMsdu (Ptr< const WifiMpdu > 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()).
 
void SendAddBaResponse (const MgtAddBaRequestHeader &reqHdr, Mac48Address originator)
 This method can be called to accept a received ADDBA Request.
 
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.
 
void SetWifiMac (const Ptr< WifiMac > mac) override
 Set the MAC layer to use.
 
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()).
 
virtual bool TryAggregateMsdu (Ptr< const WifiMpdu > 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.
 
- Public Member Functions inherited from ns3::QosFrameExchangeManager
 QosFrameExchangeManager ()
 
 ~QosFrameExchangeManager () override
 
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.
 
bool StartTransmission (Ptr< Txop > edca, MHz_u allowedWidth) override
 Request the FrameExchangeManager to start a frame exchange sequence.
 
bool TryAddMpdu (Ptr< const WifiMpdu > 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.
 
- Public Member Functions inherited from ns3::FrameExchangeManager
 FrameExchangeManager ()
 
 ~FrameExchangeManager () override
 
Ptr< WifiAckManagerGetAckManager () const
 Get the Acknowledgment Manager used by this node.
 
Mac48Address GetAddress () const
 Get the MAC address.
 
MHz_u GetAllowedWidth () const
 
Mac48Address GetBssid () const
 Get the Basic Service Set Identification.
 
std::optional< std::reference_wrapper< const OngoingRxInfo > > GetOngoingRxInfo () const
 
const std::set< Mac48Address > & GetProtectedStas () const
 
Ptr< WifiProtectionManagerGetProtectionManager () const
 Get the Protection Manager used by this node.
 
std::optional< std::reference_wrapper< const WifiMacHeader > > GetReceivedMacHdr () const
 
const WifiTxTimerGetWifiTxTimer () const
 Get a const reference to the WifiTxTimer object.
 
bool IsPromisc () const
 Check if the device is operating in promiscuous mode.
 
virtual void NotifyInternalCollision (Ptr< Txop > txop)
 Notify that an internal collision has occurred for the given Txop.
 
void NotifyOffNow ()
 This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into off mode.
 
void NotifySleepNow ()
 This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into sleep mode.
 
virtual void NotifySwitchingStartNow (Time duration)
 
void Receive (Ptr< const WifiPsdu > psdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, const 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.
 
virtual void ResetPhy ()
 Remove WifiPhy associated with this FrameExchangeManager.
 
void SetAckedMpduCallback (AckedMpdu callback)
 Set the callback to invoke when an MPDU is successfully acked.
 
virtual void SetAckManager (Ptr< WifiAckManager > ackManager)
 Set the Acknowledgment Manager to use.
 
virtual void SetAddress (Mac48Address address)
 Set the MAC address.
 
virtual void SetBssid (Mac48Address bssid)
 Set the Basic Service Set Identification.
 
virtual void SetChannelAccessManager (const Ptr< ChannelAccessManager > channelAccessManager)
 Set the channel access manager to use.
 
virtual void SetDroppedMpduCallback (DroppedMpdu callback)
 Set the callback to invoke when an MPDU is dropped.
 
virtual void SetMacRxMiddle (const Ptr< MacRxMiddle > rxMiddle)
 Set the MAC RX Middle to use.
 
virtual void SetMacTxMiddle (const Ptr< MacTxMiddle > txMiddle)
 Set the MAC TX Middle to use.
 
void SetPromisc ()
 Enable promiscuous mode.
 
virtual void SetProtectionManager (Ptr< WifiProtectionManager > protectionManager)
 Set the Protection Manager to use.
 
virtual void SetWifiPhy (const Ptr< WifiPhy > phy)
 Set the PHY layer to use.
 
- Public Member Functions inherited from ns3::Object
 Object ()
 Constructor.
 
 ~Object () override
 Destructor.
 
void AggregateObject (Ptr< Object > other)
 Aggregate two Objects together.
 
void Dispose ()
 Dispose of this Object.
 
AggregateIterator GetAggregateIterator () const
 Get an iterator to the Objects aggregated to this one.
 
TypeId GetInstanceTypeId () const override
 Get the most derived TypeId for this Object.
 
template<typename T >
Ptr< T > GetObject () const
 Get a pointer to the requested aggregated Object.
 
template<>
Ptr< ObjectGetObject () const
 Specialization of () for objects of type ns3::Object.
 
template<typename T >
Ptr< T > GetObject (TypeId tid) const
 Get a pointer to the requested aggregated Object by TypeId.
 
template<>
Ptr< ObjectGetObject (TypeId tid) const
 Specialization of (TypeId tid) for objects of type ns3::Object.
 
void Initialize ()
 Invoke DoInitialize on all Objects aggregated to this one.
 
bool IsInitialized () const
 Check if the object has been initialized.
 
void UnidirectionalAggregateObject (Ptr< Object > other)
 Aggregate an Object to another Object.
 
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount ()
 Default constructor.
 
 SimpleRefCount (const SimpleRefCount &o)
 Copy constructor.
 
uint32_t GetReferenceCount () const
 Get the reference count of the object.
 
SimpleRefCountoperator= (const SimpleRefCount &o)
 Assignment operator.
 
void Ref () const
 Increment the reference count.
 
void Unref () const
 Decrement the reference count.
 
- Public Member Functions inherited from ns3::ObjectBase
virtual ~ObjectBase ()
 Virtual destructor.
 
void GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const
 Get the value of an attribute, raising fatal errors if unsuccessful.
 
bool GetAttributeFailSafe (std::string name, AttributeValue &value) const
 Get the value of an attribute without raising errors.
 
void SetAttribute (std::string name, const AttributeValue &value)
 Set a single attribute, raising fatal errors if unsuccessful.
 
bool SetAttributeFailSafe (std::string name, const AttributeValue &value)
 Set a single attribute without raising errors.
 
bool TraceConnect (std::string name, std::string context, const CallbackBase &cb)
 Connect a TraceSource to a Callback with a context.
 
bool TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
 Connect a TraceSource to a Callback without a context.
 
bool TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected with a context.
 
bool TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected without a context.
 

Static Public Member Functions

static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::HeFrameExchangeManager
static Ptr< WifiPsduGetPsduTo (Mac48Address to, const WifiPsduMap &psduMap)
 Get the PSDU in the given PSDU map that is addressed to the given MAC address, if any, or a null pointer, otherwise.
 
static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::VhtFrameExchangeManager
static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::HtFrameExchangeManager
static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::QosFrameExchangeManager
static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::FrameExchangeManager
static TypeId GetTypeId ()
 Get the type ID.
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId ()
 Register this type.
 
- Static Public Member Functions inherited from ns3::ObjectBase
static TypeId GetTypeId ()
 Get the type ID.
 

Public Attributes

TracedCallback< WifiIcfDrop, uint8_t > m_icfDropCallback
 ICF drop reason traced callback (WifiMac exposes this trace source)
 

Protected Member Functions

void BlockAcksInTbPpduTimeout (WifiPsduMap *psduMap, std::size_t nSolicitedStations) override
 Take the necessary actions after that some BlockAck frames are missing in response to a DL MU PPDU.
 
void CtsAfterMuRtsTimeout (Ptr< WifiMpdu > muRts, const WifiTxVector &txVector) override
 Called when no CTS frame is received after an MU-RTS.
 
void DoDispose () override
 Destructor implementation.
 
bool EmlsrClientCannotRespondToIcf () const
 
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.
 
void ForwardPsduDown (Ptr< const WifiPsdu > psdu, WifiTxVector &txVector) override
 Forward a PSDU down to the PHY layer.
 
void ForwardPsduMapDown (WifiConstPsduMap psduMap, WifiTxVector &txVector) override
 Forward a map of PSDUs down to the PHY layer.
 
void IntraBssNavResetTimeout () override
 Reset the intra-BSS NAV upon expiration of the intra-BSS NAV reset timer.
 
bool IsCrossLinkCollision (const std::set< Mac48Address > &staMissedResponseFrom)
 Check whether all the stations that did not respond (to a certain frame) are EMLSR clients trying to start an UL TXOP on another link.
 
void NavResetTimeout () override
 Reset the NAV upon expiration of the NAV reset timer.
 
void NotifyChannelReleased (Ptr< Txop > txop) override
 Notify the given Txop that channel has been released.
 
void PostProcessFrame (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Perform actions that are possibly needed after receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder).
 
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., storing buffer status reports).
 
void ProtectionCompleted () override
 Transmit prepared frame immediately, if no protection was used, or in a SIFS, if protection was completed successfully.
 
void PsduRxError (Ptr< const WifiPsdu > psdu) override
 This method is called when the reception of a PSDU fails.
 
void ReceivedQosNullAfterBsrpTf (Mac48Address sender) override
 Perform the actions required when receiving QoS Null frame(s) from the given sender after a BSRP Trigger Frame.
 
void ReceiveMpdu (Ptr< const WifiMpdu > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
 This method handles the reception of an MPDU (possibly included in an A-MPDU)
 
void RxStartIndication (WifiTxVector txVector, Time psduDuration) override
 
void SendCtsAfterMuRts (const WifiMacHeader &muRtsHdr, const CtrlTriggerHeader &trigger, double muRtsSnr) override
 Send CTS after receiving an MU-RTS.
 
void SendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiMode rtsTxMode, double rtsSnr) override
 Send CTS after receiving RTS.
 
void SendQosNullFramesInTbPpdu (const CtrlTriggerHeader &trigger, const WifiMacHeader &hdr) override
 Send QoS Null frames in response to a Basic or BSRP Trigger Frame.
 
bool ShallDropReceivedMpdu (Ptr< const WifiMpdu > mpdu) const
 Check if the MPDU that has been received on this link shall be dropped.
 
void TbPpduTimeout (WifiPsduMap *psduMap, std::size_t nSolicitedStations) override
 Take the necessary actions after that some TB PPDUs are missing in response to Trigger Frame.
 
void TransmissionFailed (bool forceCurrentCw=false) override
 Take necessary actions upon a transmission failure.
 
void TransmissionSucceeded () override
 Take necessary actions upon a transmission success.
 
bool UnblockEmlsrLinksIfAllowed (Mac48Address address)
 Unblock transmissions on all the links of the given EMLSR client, provided that the latter is not involved in any DL or UL TXOP on another link.
 
- Protected Member Functions inherited from ns3::HeFrameExchangeManager
virtual void BlockAckAfterTbPpduTimeout (Ptr< WifiPsdu > psdu, const WifiTxVector &txVector)
 Take the necessary actions after that a Block Ack is missing after a TB PPDU solicited through a Trigger Frame.
 
void BlockAckTimeout (Ptr< WifiPsdu > psdu, const WifiTxVector &txVector) override
 Called when the BlockAck timeout expires.
 
void ClearTxopHolderIfNeeded () override
 Clear the TXOP holder if the intra-BSS NAV counted down to zero (includes the case of intra-BSS NAV reset).
 
void CtsTimeout (Ptr< WifiMpdu > rts, const WifiTxVector &txVector) override
 Called when the CTS timeout expires.
 
void DoCtsAfterMuRtsTimeout (Ptr< WifiMpdu > muRts, const WifiTxVector &txVector, bool updateFailedCw)
 Called when no CTS frame is received after an MU-RTS.
 
void DoDispose () override
 Destructor implementation.
 
void DoTbPpduTimeout (WifiPsduMap *psduMap, std::size_t nSolicitedStations, bool updateFailedCw)
 Take the necessary actions after that some TB PPDUs are missing in response to Trigger Frame.
 
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.
 
WifiMode GetCtsModeAfterMuRts () const
 
WifiTxVector GetCtsTxVectorAfterMuRts (const CtrlTriggerHeader &trigger, uint16_t staId) const
 Get the TXVECTOR that the station having the given station ID has to use to send a CTS frame after receiving an MU-RTS Trigger Frame from the AP it is associated with.
 
WifiTxVector GetHeTbTxVector (CtrlTriggerHeader trigger, Mac48Address triggerSender) const
 Return a TXVECTOR for the UL frame that the station will send in response to the given Trigger frame, configured with the BSS color and transmit power level to use for the consequent HE TB PPDU.
 
virtual Time GetMuRtsDurationId (uint32_t muRtsSize, const WifiTxVector &muRtsTxVector, Time txDuration, Time response) const
 Compute how to set the Duration/ID field of an MU-RTS Trigger Frame to send to protect a frame transmitted with the given TX vector.
 
WifiTxVector GetTrigVector (const CtrlTriggerHeader &trigger) const
 Get the TRIGVECTOR that the MAC has to pass to the PHY when transmitting the given Trigger Frame.
 
Time GetTxDuration (uint32_t ppduPayloadSize, Mac48Address receiver, const WifiTxParameters &txParams) const override
 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.
 
void NavResetTimeout () override
 Reset the NAV upon expiration of the NAV reset timer.
 
void NormalAckTimeout (Ptr< WifiMpdu > mpdu, const WifiTxVector &txVector) override
 Called when the Ack timeout expires.
 
void PostProcessFrame (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Perform actions that are possibly needed after receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder).
 
Ptr< WifiMpduPrepareMuBar (const WifiTxVector &responseTxVector, std::map< uint16_t, CtrlBAckRequestHeader > recipients) const
 Build a MU-BAR Trigger Frame starting from the TXVECTOR used to respond to the MU-BAR (in case of multiple responders, their TXVECTORs need to be "merged" into a single TXVECTOR) and from the BlockAckReq headers for every recipient.
 
void ProtectionCompleted () override
 Transmit prepared frame immediately, if no protection was used, or in a SIFS, if protection was completed successfully.
 
void ReceiveMpdu (Ptr< const WifiMpdu > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
 This method handles the reception of an MPDU (possibly included in an A-MPDU)
 
void Reset () override
 Reset this frame exchange manager.
 
void RxStartIndication (WifiTxVector txVector, Time psduDuration) override
 
void SendMultiStaBlockAck (const WifiTxParameters &txParams, Time durationId)
 Send a Multi-STA Block Ack frame after the reception of some TB PPDUs.
 
virtual void SendMuRts (const WifiTxParameters &txParams)
 Send an MU-RTS to begin an MU-RTS/CTS frame exchange protecting an MU PPDU.
 
void SendPsduMapWithProtection (WifiPsduMap psduMap, WifiTxParameters &txParams)
 Send a map of PSDUs as a DL MU PPDU.
 
void StartProtection (const WifiTxParameters &txParams) override
 Start the protection mechanism indicated by the given TX parameters.
 
void TransmissionSucceeded () override
 Take necessary actions upon a transmission success.
 
void UpdateNav (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Update the NAV, if needed, based on the Duration/ID of the given psdu.
 
- Protected Member Functions inherited from ns3::VhtFrameExchangeManager
uint32_t GetPsduSize (Ptr< const WifiMpdu > mpdu, const WifiTxVector &txVector) const override
 Get the size in bytes of the given MPDU, which is to be transmitted with the given TXVECTOR.
 
- Protected Member Functions inherited from ns3::HtFrameExchangeManager
void CtsTimeout (Ptr< WifiMpdu > rts, const WifiTxVector &txVector) override
 Called when the CTS timeout expires.
 
void DequeuePsdu (Ptr< const WifiPsdu > psdu)
 Dequeue the MPDUs of the given PSDU from the queue in which they are stored.
 
void DoDispose () override
 Destructor implementation.
 
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.
 
void FinalizeMacHeader (Ptr< const WifiPsdu > psdu) override
 Finalize the MAC header of the MPDUs in the given PSDU before transmission.
 
void ForwardMpduDown (Ptr< WifiMpdu > mpdu, WifiTxVector &txVector) override
 Forward an MPDU down to the PHY layer.
 
Ptr< BlockAckManagerGetBaManager (uint8_t tid) const
 Get the Block Ack Manager handling the given TID.
 
virtual Time GetPsduDurationId (Time txDuration, const WifiTxParameters &txParams) const
 Compute how to set the Duration/ID field of PSDUs that do not include fragments.
 
virtual void MissedBlockAck (Ptr< WifiPsdu > psdu, const WifiTxVector &txVector)
 Take necessary actions when a BlockAck is missed, such as scheduling a BlockAckReq frame or the retransmission of the unacknowledged frames.
 
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:
 
void NotifyPacketDiscarded (Ptr< const WifiMpdu > mpdu) override
 Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callback.
 
void NotifyReceivedNormalAck (Ptr< WifiMpdu > mpdu) override
 Notify other components that an MPDU was acknowledged.
 
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.
 
void ProtectionCompleted () override
 Transmit prepared frame immediately, if no protection was used, or in a SIFS, if protection was completed successfully.
 
void ReceiveMgtAction (Ptr< const WifiMpdu > mpdu, const WifiTxVector &txVector)
 Process a received management action frame that relates to Block Ack agreement.
 
void ReceiveMpdu (Ptr< const WifiMpdu > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
 This method handles the reception of an MPDU (possibly included in an A-MPDU)
 
void ReleaseSequenceNumbers (Ptr< const WifiPsdu > psdu) const override
 Make the sequence numbers of MPDUs included in the given PSDU available again if the MPDUs have never been transmitted.
 
void RetransmitMpduAfterMissedAck (Ptr< WifiMpdu > mpdu) const override
 Retransmit an MPDU that was not acknowledged.
 
bool SendAddBaRequest (Mac48Address recipient, uint8_t tid, uint16_t startingSeq, uint16_t timeout, bool immediateBAck, Time availableTime, std::optional< Mac48Address > gcrGroupAddr=std::nullopt)
 Sends an ADDBA Request to establish a block ack agreement with STA addressed by recipient for TID tid.
 
void SendBlockAck (const RecipientBlockAckAgreement &agreement, Time durationId, WifiTxVector &blockAckTxVector, double rxSnr)
 Create a BlockAck frame with header equal to blockAck and start its transmission.
 
virtual bool SendDataFrame (Ptr< WifiMpdu > peekedItem, Time availableTime, bool initialFrame)
 Given a non-broadcast QoS data frame, prepare the PSDU to transmit by attempting A-MSDU and A-MPDU aggregation (if enabled), while making sure that the frame exchange (possibly including protection and acknowledgment) is completed within the given available time.
 
virtual bool SendMpduFromBaManager (Ptr< WifiMpdu > mpdu, Time availableTime, bool initialFrame)
 If the given MPDU contains a BlockAckReq frame (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.
 
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.
 
void TransmissionSucceeded () override
 Take necessary actions upon a transmission success.
 
- Protected Member Functions inherited from ns3::QosFrameExchangeManager
void DoDispose () override
 Destructor implementation.
 
void ForwardMpduDown (Ptr< WifiMpdu > mpdu, WifiTxVector &txVector) override
 Forward an MPDU down to the PHY layer.
 
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.
 
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.
 
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.
 
void NavResetTimeout () override
 Reset the NAV upon expiration of the NAV reset timer.
 
void PifsRecovery (bool forceCurrentCw)
 Perform a PIFS recovery as a response to transmission failure within a TXOP.
 
void PostProcessFrame (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Perform actions that are possibly needed after receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder).
 
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., storing buffer status reports).
 
void ReceiveMpdu (Ptr< const WifiMpdu > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
 This method handles the reception of an MPDU (possibly included in an A-MPDU)
 
virtual bool SendCfEndIfNeeded ()
 Send a CF-End frame to indicate the completion of the TXOP, provided that the remaining duration is long enough to transmit this frame.
 
virtual bool StartTransmission (Ptr< QosTxop > edca, Time txopDuration)
 Request the FrameExchangeManager to start a frame exchange sequence.
 
void TransmissionFailed (bool forceCurrentCw=false) override
 Take necessary actions upon a transmission failure.
 
void TransmissionSucceeded () override
 Take necessary actions upon a transmission success.
 
void UpdateNav (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector) override
 Update the NAV, if needed, based on the Duration/ID of the given psdu.
 
- Protected Member Functions inherited from ns3::FrameExchangeManager
virtual void DequeueMpdu (Ptr< const WifiMpdu > mpdu)
 Dequeue the given MPDU from the queue in which it is stored.
 
void DoCtsTimeout (Ptr< WifiPsdu > psdu)
 Take required actions when the CTS timer fired after sending an RTS to protect the given PSDU expires.
 
void DoSendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiTxVector &ctsTxVector, double rtsSnr)
 Send CTS after receiving RTS.
 
Ptr< WifiMpduDropMpduIfRetryLimitReached (Ptr< WifiPsdu > psdu)
 Wrapper for the GetMpdusToDropOnTxFailure function of the remote station manager that additionally drops the MPDUs in the given PSDU that the remote station manager requested to drop.
 
Ptr< WifiMpduGetFirstFragmentIfNeeded (Ptr< WifiMpdu > mpdu)
 Fragment the given MPDU if needed.
 
Ptr< WifiMpduGetNextFragment ()
 Get the next fragment of the current MSDU.
 
Ptr< WifiRemoteStationManagerGetWifiRemoteStationManager () const
 
virtual void ReceivedMacHdr (const WifiMacHeader &macHdr, const WifiTxVector &txVector, Time psduDuration)
 Store information about the MAC header of the MPDU being received.
 
virtual void ReceivedNormalAck (Ptr< WifiMpdu > mpdu, const WifiTxVector &txVector, const WifiTxVector &ackTxVector, const RxSignalInfo &rxInfo, double snr)
 Perform the actions needed when a Normal Ack is received.
 
void SendCtsToSelf (const WifiTxParameters &txParams)
 Send CTS for a CTS-to-self mechanism.
 
void SendMpduWithProtection (Ptr< WifiMpdu > mpdu, WifiTxParameters &txParams)
 Send an MPDU with the given TX parameters (with the specified protection).
 
void SendNormalAck (const WifiMacHeader &hdr, const WifiTxVector &dataTxVector, double dataSnr)
 Send Normal Ack.
 
void SendRts (const WifiTxParameters &txParams)
 Send RTS to begin RTS-CTS-Data-Ack transaction.
 
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.
 
- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 Copy an Object.
 
virtual void DoInitialize ()
 Initialize() implementation.
 
virtual void NotifyNewAggregate ()
 Notify all Objects aggregated to this one of a new Object being aggregated.
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 Complete construction of ObjectBase; invoked by derived classes.
 
virtual void NotifyConstructionCompleted ()
 Notifier called once the ObjectBase is fully constructed.
 

Private Member Functions

bool DropReceivedIcf ()
 
void GenerateInDeviceInterference (uint8_t linkId, Time duration, Watt_u txPower)
 Generate an in-device interference of the given power on the given link for the given duration.
 
void SwitchToListeningOrUnblockLinks (const std::set< Mac48Address > &clients)
 For each EMLSR client in the given set of clients that did not respond to a frame requesting a response from multiple clients, have the client switch to listening or simply unblock links depending on whether the EMLSR client was protected or not.
 
void TxopEnd (const std::optional< Mac48Address > &txopHolder)
 Take actions when a TXOP (of which we are not the holder) ends.
 
void UpdateTxopEndOnRxEnd (Time durationId)
 Update the TXOP end timer when a frame reception ends.
 
void UpdateTxopEndOnRxStartIndication (Time psduDuration)
 Update the TXOP end timer when receiving a PHY-RXSTART.indication.
 
void UpdateTxopEndOnTxStart (Time txDuration, Time durationId)
 Update the TXOP end timer when starting a frame transmission.
 

Private Attributes

bool m_icfReceived {false}
 whether an ICF has been received and needs to be notified to the EMLSR manager after post-processing the frame
 
EventId m_ongoingTxopEnd
 event indicating the possible end of the current TXOP (of which we are not the holder)
 
std::unordered_map< Mac48Address, EventId, WifiAddressHashm_transDelayTimer
 MLD address-indexed map of transition delay timers.
 

Additional Inherited Members

- Public Types inherited from ns3::FrameExchangeManager
typedef Callback< void, Ptr< const WifiMpdu > > AckedMpdu
 typedef for a callback to invoke when an MPDU is successfully acknowledged.
 
typedef Callback< void, WifiMacDropReason, Ptr< const WifiMpdu > > DroppedMpdu
 typedef for a callback to invoke when an MPDU is dropped.
 
- Protected Types inherited from ns3::HtFrameExchangeManager
typedef std::pair< Mac48Address, uint8_t > AgreementKey
 agreement key typedef (MAC address and TID)
 
- Protected Attributes inherited from ns3::HeFrameExchangeManager
Time m_intraBssNavEnd
 intra-BSS NAV expiration time
 
EventId m_intraBssNavResetEvent
 the event to reset the intra-BSS NAV after an RTS
 
WifiTxVector m_trigVector
 the TRIGVECTOR
 
- Protected Attributes inherited from ns3::HtFrameExchangeManager
Ptr< MpduAggregatorm_mpduAggregator
 A-MPDU aggregator.
 
Ptr< MsduAggregatorm_msduAggregator
 A-MSDU aggregator.
 
std::map< AgreementKey, Ptr< WifiMpdu > > m_pendingAddBaResp
 pending ADDBA_RESPONSE frames indexed by agreement key
 
- Protected Attributes inherited from ns3::QosFrameExchangeManager
Ptr< QosTxopm_edca
 the EDCAF that gained channel access
 
bool m_setQosQueueSize
 whether to set the Queue Size subfield of the QoS Control field of QoS data frames
 
std::optional< Mac48Addressm_txopHolder
 MAC address of the TXOP holder.
 
- Protected Attributes inherited from ns3::FrameExchangeManager
AckedMpdu m_ackedMpduCallback
 the acknowledged MPDU callback
 
MHz_u m_allowedWidth
 the allowed width for the current transmission
 
Ptr< ApWifiMacm_apMac
 AP MAC layer pointer (null if not an AP)
 
Mac48Address m_bssid
 BSSID address (Mac48Address)
 
Ptr< ChannelAccessManagerm_channelAccessManager
 the channel access manager
 
Ptr< Txopm_dcf
 the DCF/EDCAF that gained channel access
 
DroppedMpdu m_droppedMpduCallback
 the dropped MPDU callback
 
uint8_t m_linkId
 the ID of the link this object is associated with
 
Ptr< WifiMacm_mac
 the MAC layer on this station
 
Time m_navEnd
 NAV expiration time.
 
EventId m_navResetEvent
 the event to reset the NAV after an RTS
 
Ptr< WifiPhym_phy
 the PHY layer on this station
 
bool m_promisc
 Flag if the device is operating in promiscuous mode.
 
bool m_protectedIfResponded
 whether a STA is assumed to be protected if replied to a frame requiring acknowledgment
 
std::set< Mac48Addressm_protectedStas
 STAs that have replied to an RTS in this TXOP.
 
Ptr< MacRxMiddlem_rxMiddle
 the MAC RX Middle on this station
 
Mac48Address m_self
 the MAC address of this device
 
std::set< Mac48Addressm_sentFrameTo
 the STA(s) to which we sent a frame requesting a response
 
std::set< Mac48Addressm_sentRtsTo
 the STA(s) which we sent an RTS to (waiting for CTS)
 
Ptr< StaWifiMacm_staMac
 STA MAC layer pointer (null if not a STA)
 
Ptr< MacTxMiddlem_txMiddle
 the MAC TX Middle on this station
 
Time m_txNav
 the TXNAV timer
 
WifiTxTimer m_txTimer
 the timer set upon frame transmission
 

Detailed Description

EhtFrameExchangeManager handles the frame exchange sequences for EHT stations.

Config Paths

ns3::EhtFrameExchangeManager is accessible through the following paths with Config::Set and Config::Connect:

  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::VhtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::VhtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::HtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::HtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::HtFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::HtFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::HtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::HtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::HtFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::EhtFrameExchangeManager"
  • "/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/FrameExchangeManagers/[i]/$ns3::QosFrameExchangeManager/$ns3::HtFrameExchangeManager/$ns3::VhtFrameExchangeManager/$ns3::HeFrameExchangeManager/$ns3::EhtFrameExchangeManager"

No Attributes are defined for this type.

Attributes defined in parent class ns3::HeFrameExchangeManager

  • ContinueTxopAfterBsrp: Whether to continue a TXOP a SIFS after the reception of responses to a BSRP Trigger Frame when TXOP limit is zero.
    • Set with class: ns3::BooleanValue
    • Underlying type: bool
    • Initial value: false
    • Flags: constructwriteread
    • Support level: SUPPORTED

Attributes defined in parent class ns3::QosFrameExchangeManager

  • PifsRecovery: Perform a PIFS recovery as a response to transmission failure within a TXOP
    • Set with class: ns3::BooleanValue
    • Underlying type: bool
    • Initial value: true
    • Flags: constructwriteread
    • Support level: SUPPORTED
  • SetQueueSize: Whether to set the Queue Size subfield of the QoS Control field of QoS data frames sent by non-AP stations
    • Set with class: ns3::BooleanValue
    • Underlying type: bool
    • Initial value: false
    • Flags: constructwriteread
    • Support level: SUPPORTED

Attributes defined in parent class ns3::FrameExchangeManager

  • ProtectedIfResponded: Whether a station is assumed to be protected if replied to a frame requiring acknowledgment. If a station is protected, subsequent transmissions to the same station in the same TXOP are not preceded by protection mechanisms.
    • Set with class: ns3::BooleanValue
    • Underlying type: bool
    • Initial value: true
    • Flags: constructwriteread
    • Support level: SUPPORTED

No TraceSources are defined for this type.
Group: Wifi

Size of this type is 2536 bytes (on a 64-bit architecture).

Definition at line 73 of file eht-frame-exchange-manager.h.

Constructor & Destructor Documentation

◆ EhtFrameExchangeManager()

ns3::EhtFrameExchangeManager::EhtFrameExchangeManager ( )

Definition at line 65 of file eht-frame-exchange-manager.cc.

References NS_LOG_FUNCTION.

◆ ~EhtFrameExchangeManager()

ns3::EhtFrameExchangeManager::~EhtFrameExchangeManager ( )
override

Definition at line 70 of file eht-frame-exchange-manager.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ BlockAcksInTbPpduTimeout()

void ns3::EhtFrameExchangeManager::BlockAcksInTbPpduTimeout ( WifiPsduMap * psduMap,
std::size_t nSolicitedStations )
overrideprotectedvirtual

Take the necessary actions after that some BlockAck frames are missing in response to a DL MU PPDU.

This method must not be called if all the expected BlockAck frames were received.

Parameters
psduMapa pointer to PSDU map transmitted in a DL MU PPDU
nSolicitedStationsthe number of stations solicited to send a TB PPDU

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 956 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::BlockAcksInTbPpduTimeout(), ns3::WifiTxTimer::GetStasExpectedToRespond(), ns3::FrameExchangeManager::m_txTimer, NS_LOG_FUNCTION, and SwitchToListeningOrUnblockLinks().

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◆ CheckEmlsrClientStartingTxop()

bool ns3::EhtFrameExchangeManager::CheckEmlsrClientStartingTxop ( const WifiMacHeader & hdr,
const WifiTxVector & txVector )

Check if the frame received (or being received) is sent by an EMLSR client to start an UL TXOP.

If so, take the appropriate actions (e.g., block transmission to the EMLSR client on the other links). This method is intended to be called when an MPDU (possibly within an A-MPDU) is received or when the reception of the MAC header in an MPDU is notified.

Parameters
hdrthe MAC header of the received (or being received) MPDU
txVectorthe TXVECTOR used to transmit the frame received (or being received)
Returns
whether the frame received (or being received) is sent by an EMLSR client to start an UL TXOP

Definition at line 1312 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::FindTxopHolder(), ns3::WifiMacHeader::GetAddr2(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::EventId::IsPending(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, m_ongoingTxopEnd, m_transDelayTimer, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::StaticCast(), and ns3::USING_OTHER_EMLSR_LINK.

Referenced by ReceiveMpdu().

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◆ CreateAliasIfNeeded()

Ptr< WifiMpdu > ns3::EhtFrameExchangeManager::CreateAliasIfNeeded ( Ptr< WifiMpdu > mpdu) const
overridevirtual

Create an alias of the given MPDU for transmission by this Frame Exchange Manager.

This is required by 11be MLDs to support translation of MAC addresses. For single link devices, the given MPDU is simply returned.

Parameters
mpduthe given MPDU
Returns
the alias of the given MPDU for transmission on this link

Reimplemented from ns3::QosFrameExchangeManager.

Definition at line 109 of file eht-frame-exchange-manager.cc.

References ns3::QosFrameExchangeManager::CreateAliasIfNeeded(), ns3::FrameExchangeManager::GetAddress(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, NS_ASSERT, and NS_LOG_FUNCTION.

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◆ CtsAfterMuRtsTimeout()

void ns3::EhtFrameExchangeManager::CtsAfterMuRtsTimeout ( Ptr< WifiMpdu > muRts,
const WifiTxVector & txVector )
overrideprotectedvirtual

Called when no CTS frame is received after an MU-RTS.

Parameters
muRtsthe MU-RTS that solicited CTS responses
txVectorthe TXVECTOR used to transmit the MU-RTS frame

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 920 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::DoCtsAfterMuRtsTimeout(), IsCrossLinkCollision(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_sentRtsTo, NS_LOG_FUNCTION, and SwitchToListeningOrUnblockLinks().

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◆ DoDispose()

void ns3::EhtFrameExchangeManager::DoDispose ( )
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::Object.

Definition at line 76 of file eht-frame-exchange-manager.cc.

References ns3::EventId::Cancel(), ns3::HeFrameExchangeManager::DoDispose(), m_ongoingTxopEnd, and NS_LOG_FUNCTION.

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◆ DropReceivedIcf()

bool ns3::EhtFrameExchangeManager::DropReceivedIcf ( )
private
Returns
whether the received ICF must be dropped because we are unable to process it (e.g., another EMLSR link is being used or there is no time for main PHY switch)

It might happen that, while the aux PHY is receiving an ICF, the main PHY is completing a TXOP on another link or is returning to the primary link after a TXOP is completed on another link. In order to respond to the ICF, it is necessary that the main PHY has enough time to switch and be ready to operate on this link by the end of the ICF padding.

                   TXOP end
                       │
                   ┌───┐                               another

AP MLD │ACK│ link ───────────┬─────────┬┴───┴─────────────────────────────────────── EMLSR │ QoS │ │ main PHY client │ Data │ │ └─────────┘ │ ┌─────┬───┐ this AP MLD │ ICF │pad│ link ────────────────────┴─────┴───┴─────────────────────────────────── aux PHY

Definition at line 1539 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_bssid, m_icfDropCallback, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_phy, ns3::FrameExchangeManager::m_staMac, ns3::NOT_ENOUGH_TIME_SLEEP, ns3::NOT_ENOUGH_TIME_SWITCH, ns3::NOT_ENOUGH_TIME_TX, ns3::Simulator::Now(), NS_ASSERT, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::SLEEP, ns3::StaticCast(), ns3::SWITCHING, ns3::TX, ns3::USING_OTHER_EMLSR_LINK, ns3::USING_OTHER_LINK, and UsingOtherEmlsrLink().

Referenced by ReceiveMpdu().

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◆ EmlsrClientCannotRespondToIcf()

bool ns3::EhtFrameExchangeManager::EmlsrClientCannotRespondToIcf ( ) const
protected
Returns
whether this is an EMLSR client that cannot respond to an ICF received a SIFS before

Definition at line 851 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_staMac, NS_ASSERT, and NS_LOG_DEBUG.

Referenced by SendCtsAfterMuRts(), and SendQosNullFramesInTbPpdu().

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◆ EmlsrSwitchToListening()

void ns3::EhtFrameExchangeManager::EmlsrSwitchToListening ( Mac48Address address,
const Time & delay )

This method is intended to be called when an AP MLD detects that an EMLSR client previously involved in the current TXOP will start waiting for the transition delay interval (to switch back to listening operation) after the given delay.

This method blocks the transmissions on all the EMLSR links of the given EMLSR client until the transition delay advertised by the EMLSR client expires.

Parameters
addressthe link MAC address of the given EMLSR client
delaythe given delay

Definition at line 652 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::CommonInfoBasicMle::DecodeEmlsrTransitionDelay(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::Time::IsZero(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_mac, m_transDelayTimer, NS_ASSERT, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), UnblockEmlsrLinksIfAllowed(), ns3::Time::US, and ns3::WAITING_EMLSR_TRANSITION_DELAY.

Referenced by ForwardPsduDown(), ForwardPsduMapDown(), NotifyChannelReleased(), PreProcessFrame(), SwitchToListeningOrUnblockLinks(), and TxopEnd().

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◆ EndReceiveAmpdu()

void ns3::EhtFrameExchangeManager::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 1473 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::EndReceiveAmpdu(), NS_LOG_FUNCTION, and ShallDropReceivedMpdu().

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◆ ForwardPsduDown()

◆ ForwardPsduMapDown()

◆ GenerateInDeviceInterference()

void ns3::EhtFrameExchangeManager::GenerateInDeviceInterference ( uint8_t linkId,
Time duration,
Watt_u txPower )
private

Generate an in-device interference of the given power on the given link for the given duration.

Parameters
linkIdthe ID of the link on which in-device interference is generated
durationthe duration of the in-device interference
txPowerthe TX power

Definition at line 518 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::Create(), ns3::DynamicCast(), ns3::FrameExchangeManager::m_mac, ns3::FrameExchangeManager::m_phy, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Time::US.

Referenced by ForwardPsduDown(), and ForwardPsduMapDown().

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◆ GetEmlsrSwitchToListening()

bool ns3::EhtFrameExchangeManager::GetEmlsrSwitchToListening ( Ptr< const WifiPsdu > psdu,
uint16_t aid,
const Mac48Address & address ) const
Parameters
psduthe given PSDU
aidthe AID of an EMLSR client
addressthe link MAC address of an EMLSR client
Returns
whether the EMLSR client having the given AID and MAC address shall switch back to the listening operation when receiving the given PSDU

Definition at line 1084 of file eht-frame-exchange-manager.cc.

References ns3::CtrlTriggerHeader::end(), ns3::CtrlBAckResponseHeader::FindPerAidTidInfoWithAid(), ns3::CtrlTriggerHeader::FindUserInfoWithAid(), ns3::CtrlBAckResponseHeader::IsMultiSta(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_bssid, ns3::FrameExchangeManager::m_self, ns3::FrameExchangeManager::m_staMac, NS_LOG_FUNCTION, and ns3::PeekPointer().

Referenced by ForwardPsduDown(), ForwardPsduMapDown(), and PostProcessFrame().

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◆ GetMostRecentRssi()

std::optional< dBm_u > ns3::EhtFrameExchangeManager::GetMostRecentRssi ( const Mac48Address & address) const
overridevirtual

Get the RSSI of the most recent packet received from the station having the given address.

If there is no such information for the given station and the station is affiliated with an MLD, return the RSSI of the most recent packet received from another station of the same MLD.

Parameters
addressof the remote station
Returns
the RSSI of the most recent packet received from the remote station

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 756 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::GetMostRecentRssi(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_linkId, and ns3::FrameExchangeManager::m_mac.

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◆ GetOngoingTxopEndEvent()

EventId & ns3::EhtFrameExchangeManager::GetOngoingTxopEndEvent ( )
Returns
a reference to the event indicating the possible end of the current TXOP (of which this device is not the holder)

Definition at line 1387 of file eht-frame-exchange-manager.cc.

References m_ongoingTxopEnd.

◆ GetTypeId()

TypeId ns3::EhtFrameExchangeManager::GetTypeId ( )
static

Get the type ID.

Returns
the object TypeId

Definition at line 56 of file eht-frame-exchange-manager.cc.

References ns3::TypeId::SetParent().

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◆ IntraBssNavResetTimeout()

void ns3::EhtFrameExchangeManager::IntraBssNavResetTimeout ( )
overrideprotectedvirtual

Reset the intra-BSS NAV upon expiration of the intra-BSS NAV reset timer.

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 558 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::IntraBssNavResetTimeout(), NS_LOG_FUNCTION, and UsingOtherEmlsrLink().

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◆ IsCrossLinkCollision()

bool ns3::EhtFrameExchangeManager::IsCrossLinkCollision ( const std::set< Mac48Address > & staMissedResponseFrom)
protected

Check whether all the stations that did not respond (to a certain frame) are EMLSR clients trying to start an UL TXOP on another link.

Parameters
staMissedResponseFromstations that did not respond
Returns
whether all the stations that did not respond are EMLSR clients trying to start an UL TXOP on another link

Definition at line 974 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_mac, NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by CtsAfterMuRtsTimeout(), and TbPpduTimeout().

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◆ NavResetTimeout()

void ns3::EhtFrameExchangeManager::NavResetTimeout ( )
overrideprotectedvirtual

Reset the NAV upon expiration of the NAV reset timer.

Reimplemented from ns3::FrameExchangeManager.

Definition at line 546 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::NavResetTimeout(), NS_LOG_FUNCTION, and UsingOtherEmlsrLink().

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◆ NotifyChannelReleased()

void ns3::EhtFrameExchangeManager::NotifyChannelReleased ( Ptr< Txop > txop)
overrideprotectedvirtual

Notify the given Txop that channel has been released.

Parameters
txopthe given Txop

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1182 of file eht-frame-exchange-manager.cc.

References ns3::DynamicCast(), EmlsrSwitchToListening(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::EventId::IsPending(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_protectedStas, ns3::FrameExchangeManager::m_staMac, ns3::FrameExchangeManager::NotifyChannelReleased(), ns3::Simulator::Now(), NS_ASSERT, NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by StartTransmission().

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◆ NotifySwitchingEmlsrLink()

void ns3::EhtFrameExchangeManager::NotifySwitchingEmlsrLink ( Ptr< WifiPhy > phy,
uint8_t linkId,
Time delay )

Notify that the given PHY will switch channel to operate on another EMLSR link after the given delay.

Parameters
phythe given PHY
linkIdthe ID of the EMLSR link on which the given PHY is operating
delaythe delay after which the channel switch will be completed

Definition at line 703 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_phy, ns3::FrameExchangeManager::m_staMac, NS_ABORT_MSG_IF, NS_LOG_FUNCTION, ns3::FrameExchangeManager::ResetPhy(), and ns3::Time::US.

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◆ PostProcessFrame()

void ns3::EhtFrameExchangeManager::PostProcessFrame ( Ptr< const WifiPsdu > psdu,
const WifiTxVector & txVector )
overrideprotectedvirtual

Perform actions that are possibly needed after receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder).

Parameters
psduthe received PSDU
txVectorTX vector of the received PSDU

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1264 of file eht-frame-exchange-manager.cc.

References ns3::EventId::Cancel(), GetEmlsrSwitchToListening(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::EventId::IsPending(), ns3::FrameExchangeManager::m_apMac, m_icfReceived, ns3::FrameExchangeManager::m_linkId, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_self, ns3::FrameExchangeManager::m_staMac, ns3::QosFrameExchangeManager::m_txopHolder, NS_LOG_FUNCTION, ns3::HeFrameExchangeManager::PostProcessFrame(), ns3::Simulator::ScheduleNow(), TxopEnd(), and UpdateTxopEndOnRxEnd().

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◆ PreProcessFrame()

void ns3::EhtFrameExchangeManager::PreProcessFrame ( Ptr< const WifiPsdu > psdu,
const WifiTxVector & txVector )
overrideprotectedvirtual

Perform actions that are possibly needed when receiving any frame, independently of whether the frame is addressed to this station (e.g., storing buffer status reports).

Parameters
psduthe received PSDU
txVectorTX vector of the received PSDU

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1215 of file eht-frame-exchange-manager.cc.

References EmlsrSwitchToListening(), ns3::WifiTxTimer::GetStasExpectedToRespond(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::WifiTxVector::IsUlMu(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_protectedStas, ns3::FrameExchangeManager::m_staMac, ns3::FrameExchangeManager::m_txTimer, NS_LOG_FUNCTION, ns3::FrameExchangeManager::PreProcessFrame(), and ns3::Seconds().

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◆ ProtectionCompleted()

void ns3::EhtFrameExchangeManager::ProtectionCompleted ( )
overrideprotectedvirtual

Transmit prepared frame immediately, if no protection was used, or in a SIFS, if protection was completed successfully.

Reimplemented from ns3::FrameExchangeManager.

Definition at line 322 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_staMac, NS_LOG_FUNCTION, and ns3::HeFrameExchangeManager::ProtectionCompleted().

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◆ PsduRxError()

void ns3::EhtFrameExchangeManager::PsduRxError ( Ptr< const WifiPsdu > psdu)
overrideprotectedvirtual

This method is called when the reception of a PSDU fails.

Parameters
psduthe PSDU whose reception failed

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1393 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, and NS_LOG_FUNCTION.

◆ ReceivedQosNullAfterBsrpTf()

void ns3::EhtFrameExchangeManager::ReceivedQosNullAfterBsrpTf ( Mac48Address sender)
overrideprotectedvirtual

Perform the actions required when receiving QoS Null frame(s) from the given sender after a BSRP Trigger Frame.

Parameters
senderthe MAC address of the given sender

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 837 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_protectedStas, NS_LOG_FUNCTION, and ns3::HeFrameExchangeManager::ReceivedQosNullAfterBsrpTf().

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◆ ReceiveMpdu()

void ns3::EhtFrameExchangeManager::ReceiveMpdu ( Ptr< const WifiMpdu > 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::FrameExchangeManager.

Definition at line 1404 of file eht-frame-exchange-manager.cc.

References ns3::EventId::Cancel(), CheckEmlsrClientStartingTxop(), DropReceivedIcf(), ns3::CtrlTriggerHeader::end(), ns3::CtrlTriggerHeader::FindUserInfoWithAid(), ns3::WifiPhy::GetSifs(), ns3::CtrlTriggerHeader::IsBsrp(), ns3::CtrlTriggerHeader::IsMuRts(), ns3::EventId::IsPending(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_bssid, m_icfReceived, ns3::FrameExchangeManager::m_linkId, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_phy, ns3::FrameExchangeManager::m_self, ns3::FrameExchangeManager::m_staMac, ns3::NanoSeconds(), ns3::Simulator::Now(), NS_ASSERT, NS_LOG_DEBUG, ns3::HeFrameExchangeManager::ReceiveMpdu(), ns3::Time::S, ns3::Simulator::Schedule(), ShallDropReceivedMpdu(), and TxopEnd().

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◆ RxStartIndication()

void ns3::EhtFrameExchangeManager::RxStartIndication ( WifiTxVector txVector,
Time psduDuration )
overrideprotectedvirtual
Parameters
txVectorthe TXVECTOR decoded from PHY header.
psduDurationthe duration of the PSDU that is about to be received.

This method is typically invoked by the lower PHY layer to notify the MAC layer that the reception of a PSDU is starting. This is equivalent to the PHY-RXSTART primitive. If the reception is correct for at least one MPDU of the PSDU the Receive method will be called after psduDuration.

Reimplemented from ns3::FrameExchangeManager.

Definition at line 84 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::Time::MS, NS_LOG_FUNCTION, ns3::HeFrameExchangeManager::RxStartIndication(), and UpdateTxopEndOnRxStartIndication().

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◆ SendCtsAfterMuRts()

void ns3::EhtFrameExchangeManager::SendCtsAfterMuRts ( const WifiMacHeader & muRtsHdr,
const CtrlTriggerHeader & trigger,
double muRtsSnr )
overrideprotectedvirtual

Send CTS after receiving an MU-RTS.

Parameters
muRtsHdrthe MAC header of the received MU-RTS
triggerthe MU-RTS Trigger Frame header
muRtsSnrthe SNR of the MU-RTS in linear scale

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 875 of file eht-frame-exchange-manager.cc.

References EmlsrClientCannotRespondToIcf(), NS_LOG_FUNCTION, and ns3::HeFrameExchangeManager::SendCtsAfterMuRts().

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◆ SendCtsAfterRts()

void ns3::EhtFrameExchangeManager::SendCtsAfterRts ( const WifiMacHeader & rtsHdr,
WifiMode rtsTxMode,
double rtsSnr )
overrideprotectedvirtual

Send CTS after receiving RTS.

Parameters
rtsHdrthe header of the received RTS
rtsTxModethe TX mode used to transmit the RTS
rtsSnrthe SNR of the RTS in linear scale

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1040 of file eht-frame-exchange-manager.cc.

References ns3::AC_BE, ns3::WifiMacHeader::GetAddr2(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, NS_ASSERT_MSG, NS_LOG_FUNCTION, ns3::FrameExchangeManager::SendCtsAfterRts(), ns3::USING_OTHER_EMLSR_LINK, ns3::WIFI_QOSDATA_QUEUE, and ns3::WIFI_UNICAST.

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◆ SendEmlOmn()

void ns3::EhtFrameExchangeManager::SendEmlOmn ( const Mac48Address & dest,
const MgtEmlOmn & frame )

◆ SendQosNullFramesInTbPpdu()

void ns3::EhtFrameExchangeManager::SendQosNullFramesInTbPpdu ( const CtrlTriggerHeader & trigger,
const WifiMacHeader & hdr )
overrideprotectedvirtual

Send QoS Null frames in response to a Basic or BSRP Trigger Frame.

The number of QoS Null frames that are actually aggregated depends on the available time as indicated by the Trigger Frame and is at most 8 (one QoS Null frame per TID).

Parameters
triggerthe Basic or BSRP Trigger Frame content
hdrthe MAC header of the Basic or BSRP Trigger Frame

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 889 of file eht-frame-exchange-manager.cc.

References EmlsrClientCannotRespondToIcf(), ns3::CtrlTriggerHeader::IsBsrp(), NS_LOG_FUNCTION, and ns3::HeFrameExchangeManager::SendQosNullFramesInTbPpdu().

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◆ SetIcfPaddingAndTxVector()

void ns3::EhtFrameExchangeManager::SetIcfPaddingAndTxVector ( CtrlTriggerHeader & trigger,
WifiTxVector & txVector ) const

Set the padding and the TXVECTOR of the given Trigger Frame, in case it is an Initial Control Frame for some EMLSR client(s).

Parameters
triggerthe given Trigger Frame
txVectorthe TXVECTOR used to transmit the Trigger Frame

Definition at line 789 of file eht-frame-exchange-manager.cc.

References ns3::WifiMode::GetDataRate(), ns3::WifiTxVector::GetMode(), ns3::HeFrameExchangeManager::GetTfRecipients(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::CtrlTriggerHeader::IsBsrp(), ns3::CtrlTriggerHeader::IsMuRts(), ns3::FrameExchangeManager::m_protectedStas, NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_INFO, and ns3::CtrlTriggerHeader::SetPaddingSize().

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◆ SetLinkId()

void ns3::EhtFrameExchangeManager::SetLinkId ( uint8_t linkId)
overridevirtual

Set the ID of the link this Frame Exchange Manager is associated with.

Parameters
linkIdthe ID of the link this Frame Exchange Manager is associated with

Reimplemented from ns3::FrameExchangeManager.

Definition at line 93 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::GetAckManager(), ns3::FrameExchangeManager::GetProtectionManager(), ns3::HtFrameExchangeManager::m_mpduAggregator, ns3::HtFrameExchangeManager::m_msduAggregator, and ns3::FrameExchangeManager::SetLinkId().

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◆ ShallDropReceivedMpdu()

bool ns3::EhtFrameExchangeManager::ShallDropReceivedMpdu ( Ptr< const WifiMpdu > mpdu) const
protected

Check if the MPDU that has been received on this link shall be dropped.

In our model, an aux PHY, or the main PHY that is not involved in any TXOP, can receive:

  • management frames
  • CTS
  • CF-End
  • broadcast data frames Note that this method does not attempt to detect if the given MPDU is an ICF (this is done by ReceiveMpdu).
Parameters
mpduthe MPDU that has been received
Returns
whether the given MPDU shall be dropped

Definition at line 1491 of file eht-frame-exchange-manager.cc.

References ns3::EventId::IsPending(), ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_staMac, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::wifiAcList.

Referenced by EndReceiveAmpdu(), and ReceiveMpdu().

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◆ StartTransmission()

bool ns3::EhtFrameExchangeManager::StartTransmission ( Ptr< Txop > dcf,
MHz_u allowedWidth )
overridevirtual

Request the FrameExchangeManager to start a frame exchange sequence.

Parameters
dcfthe channel access function that gained channel access. It is the DCF on non-QoS stations and an EDCA on QoS stations.
allowedWidththe allowed width for the frame exchange sequence
Returns
true if a frame exchange sequence was started, false otherwise

Reimplemented from ns3::FrameExchangeManager.

Definition at line 168 of file eht-frame-exchange-manager.cc.

References ns3::AC_BE, ns3::EventId::Cancel(), ns3::Txop::CHECK_MEDIUM_BUSY, ns3::Txop::DIDNT_HAVE_FRAMES_TO_TRANSMIT, ns3::Txop::DONT_CHECK_MEDIUM_BUSY, ns3::DynamicCast(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_allowedWidth, ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_phy, ns3::FrameExchangeManager::m_staMac, NotifyChannelReleased(), NS_ASSERT, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), ns3::Txop::StartAccessAfterEvent(), ns3::FrameExchangeManager::StartTransmission(), ns3::StaticCast(), ns3::USING_OTHER_EMLSR_LINK, UsingOtherEmlsrLink(), ns3::WIFI_QOSDATA_QUEUE, and ns3::WIFI_UNICAST.

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◆ SwitchToListeningOrUnblockLinks()

void ns3::EhtFrameExchangeManager::SwitchToListeningOrUnblockLinks ( const std::set< Mac48Address > & clients)
private

For each EMLSR client in the given set of clients that did not respond to a frame requesting a response from multiple clients, have the client switch to listening or simply unblock links depending on whether the EMLSR client was protected or not.

Parameters
clientsthe given set of clients

Definition at line 902 of file eht-frame-exchange-manager.cc.

References EmlsrSwitchToListening(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_protectedStas, NS_LOG_FUNCTION, ns3::Seconds(), and UnblockEmlsrLinksIfAllowed().

Referenced by BlockAcksInTbPpduTimeout(), CtsAfterMuRtsTimeout(), and TbPpduTimeout().

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◆ TbPpduTimeout()

void ns3::EhtFrameExchangeManager::TbPpduTimeout ( WifiPsduMap * psduMap,
std::size_t nSolicitedStations )
overrideprotectedvirtual

Take the necessary actions after that some TB PPDUs are missing in response to Trigger Frame.

This method must not be called if all the expected TB PPDUs were received.

Parameters
psduMapa pointer to PSDU map transmitted in a DL MU PPDU
nSolicitedStationsthe number of stations solicited to send a TB PPDU

Reimplemented from ns3::HeFrameExchangeManager.

Definition at line 935 of file eht-frame-exchange-manager.cc.

References ns3::HeFrameExchangeManager::DoTbPpduTimeout(), ns3::WifiTxTimer::GetStasExpectedToRespond(), IsCrossLinkCollision(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_txTimer, NS_LOG_FUNCTION, and SwitchToListeningOrUnblockLinks().

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◆ TransmissionFailed()

void ns3::EhtFrameExchangeManager::TransmissionFailed ( bool forceCurrentCw = false)
overrideprotectedvirtual

Take necessary actions upon a transmission failure.

A non-QoS station releases the channel when this method is called.

Parameters
forceCurrentCwwhether to force the contention window to stay equal to the current value (normally, contention window is updated upon TX failure)

Reimplemented from ns3::FrameExchangeManager.

Definition at line 1166 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_staMac, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::FrameExchangeManager::TransmissionFailed().

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◆ TransmissionSucceeded()

void ns3::EhtFrameExchangeManager::TransmissionSucceeded ( )
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::FrameExchangeManager.

Definition at line 1150 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_staMac, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::HeFrameExchangeManager::TransmissionSucceeded().

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◆ TxopEnd()

void ns3::EhtFrameExchangeManager::TxopEnd ( const std::optional< Mac48Address > & txopHolder)
private

Take actions when a TXOP (of which we are not the holder) ends.

Parameters
txopHolderthe holder of the TXOP (if any)

Definition at line 1642 of file eht-frame-exchange-manager.cc.

References EmlsrSwitchToListening(), ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::WifiPhy::IsReceivingPhyHeader(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, m_ongoingTxopEnd, ns3::FrameExchangeManager::m_phy, ns3::FrameExchangeManager::m_staMac, ns3::MicroSeconds(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), ns3::Seconds(), TxopEnd(), and ns3::WAIT_FOR_RXSTART_DELAY_USEC.

Referenced by PostProcessFrame(), ReceiveMpdu(), TxopEnd(), UpdateTxopEndOnRxEnd(), UpdateTxopEndOnRxStartIndication(), and UpdateTxopEndOnTxStart().

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◆ UnblockEmlsrLinksIfAllowed()

bool ns3::EhtFrameExchangeManager::UnblockEmlsrLinksIfAllowed ( Mac48Address address)
protected

Unblock transmissions on all the links of the given EMLSR client, provided that the latter is not involved in any DL or UL TXOP on another link.

Parameters
addressthe link MAC address of the given EMLSR client
Returns
whether transmissions could be unblocked

Do nothing if the EMLSR client is involved in a DL or UL TXOP on another EMLSR link. This may happen, e.g., when the AP MLD sent an MU-RTS to multiple stations on this link, some of which responded, but this EMLSR client did not, e.g., because it concurrently started an UL TXOP on another link. The AP MLD then started a (long) DL MU transmission on this link, during which the EMLSR client completed the UL TXOP and started being involved in another DL or UL TXOP (note that DL TXOP is possible because the AP MLD considered the EMLSR client unprotected as soon as it detected the start of the previous UL TXOP). A Block Ack timeout for the EMLSR client occurs at the end of the DL MU transmission (which brings us here) and it may occur while the EMLSR client is still involved in a DL or UL TXOP.

     ┌─────────────┐          ┌───────────────┐
     │  MU-RTS to  │          │    Data to    │      BA timeout for us
     │us and others│          │ us and others │        |

────────┴─────────────┴┬────────┬┴───────────────┴┬───────┬────────────── [this link] │CTS from│ │BA from│ │ others │ │ others│ └────────┘ └───────┘ ┌───────┐ ┌───┐ ┌──┐ │ MU-RTS│ ┌──────┐ [other link] │CTS│ │BA│ │ to us │ │ Data │ ─────────┬────────┬┴───┴┬────┬┴──┴──────┴───────┴┬───┬┴──────┴┬──┬─────── │ RTS │ │Data│ │CTS│ │BA│ │from us │ └────┘ └───┘ └──┘ └────────┘

Definition at line 570 of file eht-frame-exchange-manager.cc.

References ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_apMac, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_mac, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::StaticCast(), and ns3::USING_OTHER_EMLSR_LINK.

Referenced by EmlsrSwitchToListening(), and SwitchToListeningOrUnblockLinks().

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◆ UpdateTxopEndOnRxEnd()

void ns3::EhtFrameExchangeManager::UpdateTxopEndOnRxEnd ( Time durationId)
private

Update the TXOP end timer when a frame reception ends.

Parameters
durationIdthe Duration/ID value carried by the received frame

Definition at line 1735 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::EventId::Cancel(), ns3::EMLSR_RX_PHY_START_DELAY, ns3::WifiPhy::GetSifs(), ns3::WifiPhy::GetSlot(), ns3::EventId::IsPending(), m_ongoingTxopEnd, ns3::FrameExchangeManager::m_phy, ns3::QosFrameExchangeManager::m_txopHolder, ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Time::S, ns3::Simulator::Schedule(), TxopEnd(), and ns3::Time::US.

Referenced by PostProcessFrame().

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◆ UpdateTxopEndOnRxStartIndication()

void ns3::EhtFrameExchangeManager::UpdateTxopEndOnRxStartIndication ( Time psduDuration)
private

Update the TXOP end timer when receiving a PHY-RXSTART.indication.

Parameters
psduDurationthe TX duration of the PSDU being received

Definition at line 1714 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::EventId::Cancel(), ns3::EventId::IsPending(), ns3::Time::IsStrictlyPositive(), m_ongoingTxopEnd, ns3::QosFrameExchangeManager::m_txopHolder, ns3::Time::MS, ns3::NanoSeconds(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Time::S, ns3::Simulator::Schedule(), and TxopEnd().

Referenced by RxStartIndication().

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◆ UpdateTxopEndOnTxStart()

void ns3::EhtFrameExchangeManager::UpdateTxopEndOnTxStart ( Time txDuration,
Time durationId )
private

Update the TXOP end timer when starting a frame transmission.

Parameters
txDurationthe TX duration of the frame being transmitted
durationIdthe Duration/ID value carried by the frame being transmitted

Definition at line 1672 of file eht-frame-exchange-manager.cc.

References ns3::Time::As(), ns3::EventId::Cancel(), ns3::EMLSR_RX_PHY_START_DELAY, ns3::WifiTxTimer::GetDelayLeft(), ns3::WifiPhy::GetSifs(), ns3::WifiPhy::GetSlot(), ns3::EventId::IsPending(), ns3::WifiTxTimer::IsRunning(), m_ongoingTxopEnd, ns3::FrameExchangeManager::m_phy, ns3::QosFrameExchangeManager::m_txopHolder, ns3::FrameExchangeManager::m_txTimer, ns3::Time::MS, ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Time::S, ns3::Simulator::Schedule(), TxopEnd(), and ns3::Time::US.

Referenced by ForwardPsduDown(), and ForwardPsduMapDown().

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◆ UsingOtherEmlsrLink()

bool ns3::EhtFrameExchangeManager::UsingOtherEmlsrLink ( ) const
Returns
whether this is an EMLSR link that has been blocked because another EMLSR link is being used

Definition at line 152 of file eht-frame-exchange-manager.cc.

References ns3::AC_BE, ns3::FrameExchangeManager::GetWifiRemoteStationManager(), ns3::FrameExchangeManager::m_bssid, ns3::FrameExchangeManager::m_linkId, ns3::FrameExchangeManager::m_staMac, NS_ASSERT_MSG, ns3::USING_OTHER_EMLSR_LINK, ns3::WIFI_QOSDATA_QUEUE, and ns3::WIFI_UNICAST.

Referenced by DropReceivedIcf(), IntraBssNavResetTimeout(), NavResetTimeout(), and StartTransmission().

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Member Data Documentation

◆ m_icfDropCallback

TracedCallback<WifiIcfDrop, uint8_t> ns3::EhtFrameExchangeManager::m_icfDropCallback

ICF drop reason traced callback (WifiMac exposes this trace source)

Definition at line 174 of file eht-frame-exchange-manager.h.

Referenced by DropReceivedIcf().

◆ m_icfReceived

bool ns3::EhtFrameExchangeManager::m_icfReceived {false}
private

whether an ICF has been received and needs to be notified to the EMLSR manager after post-processing the frame

Definition at line 303 of file eht-frame-exchange-manager.h.

Referenced by PostProcessFrame(), and ReceiveMpdu().

◆ m_ongoingTxopEnd

EventId ns3::EhtFrameExchangeManager::m_ongoingTxopEnd
private

◆ m_transDelayTimer

std::unordered_map<Mac48Address, EventId, WifiAddressHash> ns3::EhtFrameExchangeManager::m_transDelayTimer
private

MLD address-indexed map of transition delay timers.

Definition at line 308 of file eht-frame-exchange-manager.h.

Referenced by CheckEmlsrClientStartingTxop(), and EmlsrSwitchToListening().


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