wifi: EMLSR clients switch to listening with the MAC header of broadcast frames other than TF and Multi-STA BA

RELEASE_NOTES.md

@@ -40,6 +40,7 @@ ns-3 has switched to the C++23 standard by default.
 
 - (internet) #1251 - Added check for longest prefix match in GlobalRouting
 - (wifi) Block transmission on other EMLSR links as soon as it is detected that the main PHY is receiving an A-MPDU, to prevent that the EMLSR client starts an UL TXOP before the end of the A-MPDU
+- (wifi) EMLSR clients can switch to listening operations when receiving the MAC header of a broadcast frame that is not a Trigger Frame nor a Multi-STA BA
 
 ## Release 3.45
 

src/wifi/model/eht/advanced-emlsr-manager.cc

@@ -332,7 +332,7 @@ AdvancedEmlsrManager::ReceivedMacHdr(Ptr<WifiPhy> phy,
     const auto isMainPhy = (phy->GetPhyId() == GetMainPhyId());
 
     if (ongoingTxopEnd.IsPending() && macHdr.GetAddr1() != GetEhtFem(*linkId)->GetAddress() &&
-        !macHdr.GetAddr1().IsBroadcast() &&
+        !macHdr.IsTrigger() && !macHdr.IsBlockAck() &&
         !(macHdr.IsCts() && macHdr.GetAddr1() == GetEhtFem(*linkId)->GetBssid() /* CTS-to-self */))
     {
         // the EMLSR client is no longer involved in the TXOP and switching to listening mode