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wifi: HE FEM can receive TB PPDUs containing a single QoS Null

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This commit is contained in:
Stefano Avallone
2022-05-26 19:48:53 +02:00
parent 36bd103c49
commit b627396ee5
1 changed files with 38 additions and 0 deletions
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38
src/wifi/model/he/he-frame-exchange-manager.cc
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@@ -1530,6 +1530,44 @@ HeFrameExchangeManager::ReceiveMpdu (Ptr<WifiMacQueueItem> mpdu, RxSignalInfo rx
return;
}
if (txVector.IsUlMu () && m_txTimer.IsRunning ()
&& m_txTimer.GetReason () == WifiTxTimer::WAIT_QOS_NULL_AFTER_BSRP_TF
&& !inAmpdu) // if in A-MPDU, processing is done at the end of A-MPDU reception
{
Mac48Address sender = hdr.GetAddr2 ();
if (m_staExpectTbPpduFrom.find (sender) == m_staExpectTbPpduFrom.end ())
{
NS_LOG_WARN ("Received a TB PPDU from an unexpected station: " << sender);
return;
}
if (!(hdr.IsQosData () && !hdr.HasData ()))
{
NS_LOG_WARN ("No QoS Null frame in the received MPDU");
return;
}
NS_LOG_DEBUG ("Received a QoS Null frame in a TB PPDU from " << sender);
// remove the sender from the set of stations that are expected to send a TB PPDU
m_staExpectTbPpduFrom.erase (sender);
if (m_staExpectTbPpduFrom.empty ())
{
// we do not expect any other response
m_txTimer.Cancel ();
m_channelAccessManager->NotifyAckTimeoutResetNow ();
NS_ASSERT (m_edca != 0);
m_psduMap.clear ();
m_edca->ResetCw ();
TransmissionSucceeded ();
}
// the received TB PPDU has been processed
return;
}
if (hdr.IsCtl ())
{
if (hdr.IsCts () && m_txTimer.IsRunning () && m_txTimer.GetReason () == WifiTxTimer::WAIT_CTS