F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wifi: AP MLDs take actions to send BSRP TFs as ICFs for EMLSR clients

Browse Source
This commit is contained in:
Stefano Avallone
2024-05-31 16:01:13 +02:00
parent 1f5e928167
commit 861c033146
2 changed files with 50 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/wifi/model/eht/eht-frame-exchange-manager.cc
View File

@@ -412,6 +412,40 @@ EhtFrameExchangeManager::ForwardPsduMapDown(WifiConstPsduMap psduMap, WifiTxVect
if (m_apMac)
{
// check if this is a BSRP TF used as ICF for some EMLSR client
if (IsTrigger(psduMap))
{
CtrlTriggerHeader trigger;
psduMap.cbegin()->second->GetPayload(0)->PeekHeader(trigger);
if (trigger.IsBsrp())
{
auto recipients = GetTfRecipients(trigger);
for (const auto& client : recipients)
{
if (!GetWifiRemoteStationManager()->GetEmlsrEnabled(client))
{
continue;
}
auto clientMld = GetWifiRemoteStationManager()->GetMldAddress(client);
NS_ASSERT(clientMld);
// block transmissions on the other EMLSR links of the EMLSR clients
for (uint8_t linkId = 0; linkId < m_apMac->GetNLinks(); ++linkId)
{
if (linkId != m_linkId &&
m_mac->GetWifiRemoteStationManager(linkId)->GetEmlsrEnabled(*clientMld))
{
m_mac->BlockUnicastTxOnLinks(
WifiQueueBlockedReason::USING_OTHER_EMLSR_LINK,
*clientMld,
{linkId});
}
}
}
}
}
// check if the EMLSR clients shall switch back to listening operation at the end of this
// PPDU
for (auto clientIt = m_protectedStas.begin(); clientIt != m_protectedStas.end();)

17
src/wifi/model/he/rr-multi-user-scheduler.cc
View File

@@ -9,9 +9,9 @@
#include "rr-multi-user-scheduler.h"
#include "he-configuration.h"
#include "he-frame-exchange-manager.h"
#include "he-phy.h"
#include "ns3/eht-frame-exchange-manager.h"
#include "ns3/log.h"
#include "ns3/wifi-acknowledgment.h"
#include "ns3/wifi-mac-queue.h"
@@ -363,6 +363,21 @@ RrMultiUserScheduler::TrySendingBsrpTf()
m_apMac->GetWifiRemoteStationManager(m_linkId)->GetRtsTxVector(m_triggerMacHdr.GetAddr1(),
m_allowedWidth);
// If this BSRP TF is an ICF, we need to add padding and adjust the TXVECTOR
if (auto ehtFem =
DynamicCast<EhtFrameExchangeManager>(m_apMac->GetFrameExchangeManager(m_linkId)))
{
auto prevPaddingSize = m_trigger.GetPaddingSize();
ehtFem->SetIcfPaddingAndTxVector(m_trigger, m_txParams.m_txVector);
// serialize again if padding has been added
if (m_trigger.GetPaddingSize() != prevPaddingSize)
{
auto packet = Create<Packet>();
packet->AddHeader(m_trigger);
item = Create<WifiMpdu>(packet, item->GetHeader());
}
}
if (!GetHeFem(m_linkId)->TryAddMpdu(item, m_txParams, m_availableTime))
{
// sending the BSRP Trigger Frame is not possible, hence return NO_TX. In