9#ifndef MULTI_USER_SCHEDULER_H
10#define MULTI_USER_SCHEDULER_H
14#include "ns3/ap-wifi-mac.h"
15#include "ns3/ctrl-headers.h"
16#include "ns3/object.h"
17#include "ns3/wifi-remote-station-manager.h"
18#include "ns3/wifi-tx-parameters.h"
20#include <unordered_map>
26class HeFrameExchangeManager;
28typedef std::unordered_map<uint16_t , Ptr<WifiPsdu> >
WifiPsduMap;
MultiUserScheduler is an abstract base class defining the API that APs supporting at least VHT can us...
bool m_initialFrame
true if a TXOP is being started
void NotifyNewAggregate() override
Notify all Objects aggregated to this one of a new Object being aggregated.
~MultiUserScheduler() override
void DoInitialize() override
Initialize() implementation.
TxFormat GetLastTxFormat(uint8_t linkId)
Get the format of the last transmission on the given link, as determined by the last call to NotifyAc...
Ptr< ApWifiMac > m_apMac
the AP wifi MAC
std::vector< EventId > m_accessReqTimers
the per-link timer controlling additional channel access requests
void CheckTriggerFrame()
Ensure that the Trigger Frame returned in case of UL MU transmission is correct.
static TypeId GetTypeId()
Get the type ID.
Time m_availableTime
the time available for frame exchange
Ptr< WifiRemoteStationManager > GetWifiRemoteStationManager(uint8_t linkId) const
Get the station manager attached to the AP on the given link.
UlMuInfo & GetUlMuInfo(uint8_t linkId)
Get the information required to solicit an UL MU transmission on the given link.
uint8_t m_linkId
the ID of the link over which channel access has been granted
virtual TxFormat SelectTxFormat()=0
Select the format of the next transmission.
void SetAccessReqInterval(Time interval)
Set the duration of the interval between two consecutive requests for channel access made by the Mult...
uint32_t GetMaxSizeOfQosNullAmpdu(const CtrlTriggerHeader &trigger) const
Get the maximum size in bytes among the A-MPDUs containing QoS Null frames and solicited by the given...
bool m_restartTimerUponAccess
whether the channel access timer has to be restarted upon channel access
virtual DlMuInfo ComputeDlMuInfo()=0
Compute the information required to perform a DL MU transmission.
Ptr< QosTxop > m_edca
the AC that gained channel access
Time GetAccessReqInterval() const
virtual UlMuInfo ComputeUlMuInfo()=0
Prepare the information required to solicit an UL MU transmission.
void DoDispose() override
Destructor implementation.
Ptr< WifiMpdu > GetTriggerFrame(const CtrlTriggerHeader &trigger, uint8_t linkId) const
Get an MPDU containing the given Trigger Frame.
AcIndex m_accessReqAc
AC we request channel access for.
DlMuInfo & GetDlMuInfo(uint8_t linkId)
Get the information required to perform a DL MU transmission on the given link.
MHz_u m_allowedWidth
the allowed width for the current transmission
Ptr< HeFrameExchangeManager > GetHeFem(uint8_t linkId) const
Get the HE Frame Exchange Manager attached to the AP on the given link.
Time m_accessReqInterval
duration of the interval between channel access requests
TxFormat NotifyAccessGranted(Ptr< QosTxop > edca, Time availableTime, bool initialFrame, MHz_u allowedWidth, uint8_t linkId)
Notify the Multi-user Scheduler that the given AC of the AP gained channel access.
void SetWifiMac(Ptr< ApWifiMac > mac)
Set the wifi MAC.
TxFormat
Enumeration of the possible transmission formats.
std::map< uint8_t, LastTxInfo > m_lastTxInfo
Information about the last transmission.
void AccessReqTimeout(uint8_t linkId)
Perform actions required on expiration of the channel access request timer associated with the given ...
A base class which provides memory management and object aggregation.
Smart pointer class similar to boost::intrusive_ptr.
Simulation virtual time values and global simulation resolution.
a unique identifier for an interface.
This class stores the TX parameters (TX vector, protection mechanism, acknowledgment mechanism,...
AcIndex
This enumeration defines the Access Categories as an enumeration with values corresponding to the AC ...
Every class exported by the ns3 library is enclosed in the ns3 namespace.
std::unordered_map< uint16_t, Ptr< WifiPsdu > > WifiPsduMap
Map of PSDUs indexed by STA-ID.
Information to be provided in case of DL MU transmission.
WifiTxParameters txParams
the transmission parameters
WifiPsduMap psduMap
the DL MU PPDU to transmit
Type for the information about the last transmission.
TxFormat lastTxFormat
the format of last transmission
UlMuInfo ulInfo
information required to solicit an UL MU transmission
DlMuInfo dlInfo
information required to perform a DL MU transmission
Information to be provided in case of UL MU transmission.
WifiTxParameters txParams
the transmission parameters for the Trigger Frame
CtrlTriggerHeader trigger
the Trigger Frame used to solicit TB PPDUs
WifiMacHeader macHdr
the MAC header for the Trigger Frame