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wifi: Aux PHY of an EMLSR client sends RTS to initiate an UL TXOP

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This commit is contained in:
Stefano Avallone
2023-05-30 12:22:55 +02:00
committed by Stefano Avallone
parent c0e199f103
commit bdc2e95cff
1 changed files with 15 additions and 1 deletions
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16
src/wifi/model/wifi-default-protection-manager.cc
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@@ -21,10 +21,12 @@
#include "ap-wifi-mac.h"
#include "frame-exchange-manager.h"
#include "sta-wifi-mac.h"
#include "wifi-mpdu.h"
#include "wifi-tx-parameters.h"
#include "ns3/boolean.h"
#include "ns3/emlsr-manager.h"
#include "ns3/erp-ofdm-phy.h"
#include "ns3/log.h"
@@ -188,8 +190,20 @@ WifiDefaultProtectionManager::GetPsduProtection(const WifiMacHeader& hdr,
return std::make_unique<WifiNoProtection>();
}
// when an EMLSR client starts an UL TXOP on a link on which the main PHY is not operating,
// the aux PHY sends an RTS frame
bool emlsrNeedRts = false;
if (auto staMac = DynamicCast<StaWifiMac>(m_mac))
{
auto emlsrManager = staMac->GetEmlsrManager();
emlsrNeedRts = emlsrManager && staMac->IsEmlsrLink(m_linkId) &&
m_mac->GetLinkForPhy(emlsrManager->GetMainPhyId()) != m_linkId;
}
// check if RTS/CTS is needed
if (GetWifiRemoteStationManager()->NeedRts(hdr, size))
if (emlsrNeedRts || GetWifiRemoteStationManager()->NeedRts(hdr, size))
{
auto protection = std::make_unique<WifiRtsCtsProtection>();
protection->rtsTxVector = GetWifiRemoteStationManager()->GetRtsTxVector(hdr.GetAddr1());