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wifi: Use higher PHY RX start delay

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Otherwise, an EMLSR client may consider the TXOP as ended before the RX START
indication for a HT/VHT/HE/EHT PPDU
This commit is contained in:
Stefano Avallone
2023-06-14 14:01:54 +02:00
committed by Stefano Avallone
parent 1f4b4cbfd6
commit 1014ac4f52
1 changed files with 5 additions and 1 deletions
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6
src/wifi/model/eht/eht-frame-exchange-manager.cc
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@@ -34,6 +34,10 @@
namespace ns3
{
/// generic value for aRxPHYStartDelay PHY characteristic (used when we do not know the preamble
/// type of the next frame)
static constexpr uint8_t RX_PHY_START_DELAY_USEC = 48;
NS_LOG_COMPONENT_DEFINE("EhtFrameExchangeManager");
NS_OBJECT_ENSURE_REGISTERED(EhtFrameExchangeManager);
@@ -491,7 +495,7 @@ EhtFrameExchangeManager::NotifyChannelReleased(Ptr<Txop> txop)
// the channel has been released; all EMLSR clients will switch back to listening
// operation after a timeout interval of aSIFSTime + aSlotTime + aRxPHYStartDelay
auto delay = m_phy->GetSifs() + m_phy->GetSlot() + MicroSeconds(20);
auto delay = m_phy->GetSifs() + m_phy->GetSlot() + MicroSeconds(RX_PHY_START_DELAY_USEC);
for (const auto& address : m_protectedStas)
{
if (GetWifiRemoteStationManager()->GetEmlsrEnabled(address))