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wifi: AP MLD unblocks transmissions on other links if no response to MU-RTS

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Transmissions are blocked by the AP MLD when sending the MU-RTS
This commit is contained in:
Stefano Avallone
2023-06-28 14:04:03 +02:00
committed by Stefano Avallone
parent 2dacfedaa5
commit 99cb2319cc
2 changed files with 40 additions and 0 deletions
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39
src/wifi/model/eht/eht-frame-exchange-manager.cc
View File

@@ -469,6 +469,45 @@ EhtFrameExchangeManager::SendMuRts(const WifiTxParameters& txParams)
HeFrameExchangeManager::SendMuRts(txParams);
}
void
EhtFrameExchangeManager::CtsAfterMuRtsTimeout(Ptr<WifiMpdu> muRts, const WifiTxVector& txVector)
{
NS_LOG_FUNCTION(this << *muRts << txVector);
// we blocked transmissions on the other EMLSR links for the EMLSR clients we sent the ICF to.
// Given that no client responded, we can unblock transmissions for a client if there is no
// ongoing UL TXOP held by that client
for (const auto& address : m_sentRtsTo)
{
if (!GetWifiRemoteStationManager()->GetEmlsrEnabled(address))
{
continue;
}
auto mldAddress = GetWifiRemoteStationManager()->GetMldAddress(address);
NS_ASSERT(mldAddress);
if (m_ongoingTxopEnd.IsRunning() && m_txopHolder &&
m_mac->GetMldAddress(*m_txopHolder) == mldAddress)
{
continue;
}
for (uint8_t linkId = 0; linkId < m_apMac->GetNLinks(); linkId++)
{
if (linkId != m_linkId &&
m_mac->GetWifiRemoteStationManager(linkId)->GetEmlsrEnabled(*mldAddress))
{
m_mac->UnblockUnicastTxOnLinks(WifiQueueBlockedReason::USING_OTHER_EMLSR_LINK,
*mldAddress,
{linkId});
}
}
}
HeFrameExchangeManager::CtsAfterMuRtsTimeout(muRts, txVector);
}
bool
EhtFrameExchangeManager::GetEmlsrSwitchToListening(Ptr<const WifiPsdu> psdu,
uint16_t aid,

1
src/wifi/model/eht/eht-frame-exchange-manager.h
View File

@@ -93,6 +93,7 @@ class EhtFrameExchangeManager : public HeFrameExchangeManager
void ForwardPsduDown(Ptr<const WifiPsdu> psdu, WifiTxVector& txVector) override;
void ForwardPsduMapDown(WifiConstPsduMap psduMap, WifiTxVector& txVector) override;
void SendMuRts(const WifiTxParameters& txParams) override;
void CtsAfterMuRtsTimeout(Ptr<WifiMpdu> muRts, const WifiTxVector& txVector) override;
void TransmissionSucceeded() override;
void TransmissionFailed() override;
void NotifyChannelReleased(Ptr<Txop> txop) override;