EHT PPDU (11be) More...

#include "eht-ppdu.h"

Inheritance diagram for ns3::EhtPpdu:

Collaboration diagram for ns3::EhtPpdu:

Classes
struct	EhtMuPhyHeader
	PHY header for EHT MU PPDUs. More...

struct	EhtTbPhyHeader
	PHY header for EHT TB PPDUs. More...

Public Types
using	EhtPhyHeader = std::variant< std::monostate, EhtTbPhyHeader, EhtMuPhyHeader >
	type of the EHT PHY header More...

Public Types inherited from ns3::HePpdu
using	HeSigBContentChannels = std::vector< std::vector< HeSigBUserSpecificField > >
	HE SIG-B Content Channels. More...

using	HeSigHeader = std::variant< std::monostate, HeSuSigHeader, HeTbSigHeader, HeMuSigHeader >
	type of the HE-SIG PHY header More...

enum	TxPsdFlag { PSD_NON_HE_PORTION , PSD_HE_PORTION }
	The transmit power spectral density flag, namely used to correctly build PSDs for pre-HE and HE portions. More...

Public Member Functions
	EhtPpdu (const WifiConstPsduMap &psdus, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, Time ppduDuration, uint64_t uid, TxPsdFlag flag)
	Create an EHT PPDU, storing a map of PSDUs. More...

Ptr< WifiPpdu >	Copy () const override
	Copy this instance. More...

WifiPpduType	GetType () const override
	Return the PPDU type (. More...

Public Member Functions inherited from ns3::HePpdu
	HePpdu (const WifiConstPsduMap &psdus, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, Time ppduDuration, uint64_t uid, TxPsdFlag flag)
	Create an MU HE PPDU, storing a map of PSDUs. More...

	HePpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, Time ppduDuration, uint64_t uid)
	Create an SU HE PPDU, storing a PSDU. More...

Ptr< WifiPpdu >	Copy () const override
	Copy this instance. More...

Ptr< const WifiPsdu >	GetPsdu (uint8_t bssColor, uint16_t staId=SU_STA_ID) const
	Get the payload of the PPDU. More...

uint16_t	GetStaId () const override
	Get the ID of the STA that transmitted the PPDU for UL MU, SU_STA_ID otherwise. More...

uint16_t	GetTxChannelWidth () const override
	Get the channel width over which the PPDU will effectively be transmitted. More...

Time	GetTxDuration () const override
	Get the total transmission duration of the PPDU. More...

TxPsdFlag	GetTxPsdFlag () const

WifiPpduType	GetType () const override
	Return the PPDU type (. More...

void	SetTxPsdFlag (TxPsdFlag flag) const

void	UpdateTxVectorForUlMu (const std::optional< WifiTxVector > &trigVector) const
	Update the TXVECTOR for HE TB PPDUs, since the information to decode HE TB PPDUs is not available from the PHY headers but it requires information from the TRIGVECTOR of the AP expecting these HE TB PPDUs. More...

Public Member Functions inherited from ns3::OfdmPpdu
	OfdmPpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid, bool instantiateLSig=true)
	Create an OFDM PPDU. More...

Ptr< WifiPpdu >	Copy () const override
	Copy this instance. More...

Time	GetTxDuration () const override
	Get the total transmission duration of the PPDU. More...

Public Member Functions inherited from ns3::WifiPpdu
	WifiPpdu (const WifiConstPsduMap &psdus, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid)
	Create a PPDU storing a map of PSDUs. More...

	WifiPpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid=UINT64_MAX)
	Create a PPDU storing a PSDU. More...

virtual	~WifiPpdu ()
	Destructor for WifiPpdu. More...

bool	DoesOverlapChannel (uint16_t minFreq, uint16_t maxFreq) const
	Check whether the given PPDU overlaps a given channel. More...

WifiModulationClass	GetModulation () const
	Get the modulation used for the PPDU. More...

WifiPreamble	GetPreamble () const
	Get the preamble of the PPDU. More...

Ptr< const WifiPsdu >	GetPsdu () const
	Get the payload of the PPDU. More...

uint16_t	GetTxCenterFreq () const

const WifiTxVector &	GetTxVector () const
	Get the TXVECTOR used to send the PPDU. More...

uint64_t	GetUid () const
	Get the UID of the PPDU. More...

bool	IsTruncatedTx () const

void	Print (std::ostream &os) const
	Print the PPDU contents. More...

void	ResetTxVector () const
	Reset the TXVECTOR. More...

void	SetTruncatedTx ()
	Indicate that the PPDU's transmission was aborted due to transmitter switch off. More...

void	UpdateTxVector (const WifiTxVector &updatedTxVector) const
	Update the TXVECTOR based on some information known at the receiver. More...

Public Member Functions inherited from ns3::SimpleRefCount< WifiPpdu >
	SimpleRefCount ()
	Default constructor. More...

	SimpleRefCount (const SimpleRefCount &o[[maybe_unused]])
	Copy constructor. More...

uint32_t	GetReferenceCount () const
	Get the reference count of the object. More...

SimpleRefCount &	operator= (const SimpleRefCount &o[[maybe_unused]])
	Assignment operator. More...

void	Ref () const
	Increment the reference count. More...

void	Unref () const
	Decrement the reference count. More...

Static Public Member Functions
static HeSigBContentChannels	GetEhtSigContentChannels (const WifiTxVector &txVector, uint8_t p20Index)
	Get the EHT-SIG content channels for a given PPDU IEEE 802.11be-D3.1 36.3.12.8.2 EHT-SIG content channels. More...

static uint32_t	GetEhtSigFieldSize (uint16_t channelWidth, const std::vector< uint8_t > &ruAllocation, uint8_t ehtPpduType, bool compression, std::size_t numMuMimoUsers)
	Get variable length EHT-SIG field size. More...

static std::pair< std::size_t, std::size_t >	GetNumRusPerEhtSigBContentChannel (uint16_t channelWidth, uint8_t ehtPpduType, const std::vector< uint8_t > &ruAllocation, bool compression, std::size_t numMuMimoUsers)
	Get the number of RUs per EHT-SIG-B content channel. More...

Static Public Member Functions inherited from ns3::HePpdu
static HeSigBContentChannels	GetHeSigBContentChannels (const WifiTxVector &txVector, uint8_t p20Index)
	Get the HE SIG-B content channels for a given PPDU IEEE 802.11ax-2021 27.3.11.8.2 HE-SIG-B content channels. More...

static std::pair< std::size_t, std::size_t >	GetNumRusPerHeSigBContentChannel (uint16_t channelWidth, const RuAllocation &ruAllocation, bool sigBCompression, uint8_t numMuMimoUsers)
	Get the number of STAs per HE-SIG-B content channel. More...

static uint32_t	GetSigBFieldSize (uint16_t channelWidth, const RuAllocation &ruAllocation, bool sigBCompression, std::size_t numMuMimoUsers)
	Get variable length HE SIG-B field size. More...

Private Member Functions
bool	IsDlMu () const override
	Return true if the PPDU is a DL MU PPDU. More...

bool	IsUlMu () const override
	Return true if the PPDU is an UL MU PPDU. More...

void	SetEhtPhyHeader (const WifiTxVector &txVector)
	Fill in the EHT PHY header. More...

void	SetPhyHeaders (const WifiTxVector &txVector, Time ppduDuration)
	Fill in the PHY headers. More...

void	SetTxVectorFromPhyHeaders (WifiTxVector &txVector) const override
	Fill in the TXVECTOR from PHY headers. More...

Private Attributes
EhtPhyHeader	m_ehtPhyHeader
	the EHT PHY header More...

Additional Inherited Members
Protected Member Functions inherited from ns3::HePpdu
void	SetHeMuUserInfos (WifiTxVector &txVector, const RuAllocation &ruAllocation, const HeSigBContentChannels &contentChannels, bool sigBCompression, uint8_t numMuMimoUsers) const
	Reconstruct HeMuUserInfoMap from HE-SIG-B header. More...

Static Protected Member Functions inherited from ns3::HePpdu
static uint8_t	GetChannelWidthEncodingFromMhz (uint16_t channelWidth)
	Convert channel width expressed in MHz to bandwidth field encoding in HE-SIG-A. More...

static uint16_t	GetChannelWidthMhzFromEncoding (uint8_t bandwidth)
	Convert channel width expressed in MHz from bandwidth field encoding in HE-SIG-A. More...

static uint8_t	GetGuardIntervalAndNltfEncoding (uint16_t gi, uint8_t nltf)
	Convert guard interval (in ns) and NLTF to its encoding in HE-SIG-A. More...

static uint16_t	GetGuardIntervalFromEncoding (uint8_t giAndNltfSize)
	Convert guard interval (in ns) from its encoding in HE-SIG-A. More...

static uint8_t	GetMuMimoUsersEncoding (uint8_t nUsers)
	Convert number of MU-MIMO users to its encoding in HE-SIG-A. More...

static uint8_t	GetMuMimoUsersFromEncoding (uint8_t encoding)
	Convert number of MU-MIMO users from its encoding in HE-SIG-A. More...

static uint8_t	GetNssFromNstsEncoding (uint8_t nsts)
	Convert number of spatial streams from NSTS field encoding in HE-SIG-A. More...

static uint8_t	GetNstsEncodingFromNss (uint8_t nss)
	Convert number of spatial streams to NSTS field encoding in HE-SIG-A. More...

Protected Attributes inherited from ns3::HePpdu
TxPsdFlag	m_txPsdFlag
	the transmit power spectral density flag More...

Protected Attributes inherited from ns3::OfdmPpdu
LSigHeader	m_lSig
	the L-SIG PHY header More...

Protected Attributes inherited from ns3::WifiPpdu
WifiModulationClass	m_modulation
	the modulation used for the transmission of this PPDU More...

const WifiPhyOperatingChannel &	m_operatingChannel
	the operating channel of the PHY More...

WifiPreamble	m_preamble
	the PHY preamble More...

WifiConstPsduMap	m_psdus
	the PSDUs contained in this PPDU More...

uint16_t	m_txCenterFreq
	the center frequency (MHz) used for the transmission of this PPDU More...

std::optional< WifiTxVector >	m_txVector
	the TXVECTOR at TX PHY or the reconstructed TXVECTOR at RX PHY (or std::nullopt if TXVECTOR has not been reconstructed yet) More...

uint64_t	m_uid
	the unique ID of this PPDU More...

Detailed Description

EHT PPDU (11be)

EhtPpdu is currently identical to HePpdu

Definition at line 42 of file eht-ppdu.h.

Member Typedef Documentation

◆ EhtPhyHeader

using ns3::EhtPpdu::EhtPhyHeader = std::variant<std::monostate, EhtTbPhyHeader, EhtMuPhyHeader>

type of the EHT PHY header

Definition at line 82 of file eht-ppdu.h.

Constructor & Destructor Documentation

◆ EhtPpdu()

ns3::EhtPpdu::EhtPpdu	(	const WifiConstPsduMap &	psdus,
		const WifiTxVector &	txVector,
		const WifiPhyOperatingChannel &	channel,
		Time	ppduDuration,
		uint64_t	uid,
		TxPsdFlag	flag
	)

Create an EHT PPDU, storing a map of PSDUs.

This PPDU can either be UL or DL.

Parameters

psdus	the PHY payloads (PSDUs)
txVector	the TXVECTOR that was used for this PPDU
channel	the operating channel of the PHY used to transmit this PPDU
ppduDuration	the transmission duration of this PPDU
uid	the unique ID of this PPDU or of the triggering PPDU if this is an EHT TB PPDU
flag	the flag indicating the type of Tx PSD to build

Definition at line 35 of file eht-ppdu.cc.

References third::channel, NS_LOG_FUNCTION, and SetPhyHeaders().

Referenced by Copy().

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Member Function Documentation

◆ Copy()

Ptr< WifiPpdu > ns3::EhtPpdu::Copy ( void ) const

overridevirtual

Copy this instance.

Returns: a Ptr to a copy of this instance.

Reimplemented from ns3::WifiPpdu.

Definition at line 245 of file eht-ppdu.cc.

References EhtPpdu().

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◆ GetEhtSigContentChannels()

HePpdu::HeSigBContentChannels ns3::EhtPpdu::GetEhtSigContentChannels	(	const WifiTxVector &	txVector,
		uint8_t	p20Index
	)

static

Get the EHT-SIG content channels for a given PPDU IEEE 802.11be-D3.1 36.3.12.8.2 EHT-SIG content channels.

Parameters

txVector	the TXVECTOR used for the PPDU
p20Index	the index of the primary20 channel

Returns: EHT-SIG content channels

Definition at line 191 of file eht-ppdu.cc.

References ns3::WifiTxVector::GetEhtPpduType(), ns3::HePpdu::GetHeSigBContentChannels(), ns3::WifiMode::GetMcsValue(), ns3::WifiTxVector::GetMode(), and ns3::WifiTxVector::GetNss().

Referenced by SetEhtPhyHeader().

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◆ GetEhtSigFieldSize()

uint32_t ns3::EhtPpdu::GetEhtSigFieldSize	(	uint16_t	channelWidth,
		const std::vector< uint8_t > &	ruAllocation,
		uint8_t	ehtPpduType,
		bool	compression,
		std::size_t	numMuMimoUsers
	)

static

Get variable length EHT-SIG field size.

Parameters

channelWidth	the channel width occupied by the PPDU (in MHz)
ruAllocation	8 bit RU_ALLOCATION per 20 MHz
ehtPpduType	the EHT_PPDU_TYPE used by the PPDU
compression	flag whether compression mode is used by the PPDU
numMuMimoUsers	the number of MU-MIMO users addressed by the PPDU

Returns: field size in bytes

Definition at line 203 of file eht-ppdu.cc.

References GetNumRusPerEhtSigBContentChannel(), and max.

Referenced by ns3::EhtPhy::GetSigBSize().

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◆ GetNumRusPerEhtSigBContentChannel()

std::pair< std::size_t, std::size_t > ns3::EhtPpdu::GetNumRusPerEhtSigBContentChannel	(	uint16_t	channelWidth,
		uint8_t	ehtPpduType,
		const std::vector< uint8_t > &	ruAllocation,
		bool	compression,
		std::size_t	numMuMimoUsers
	)

static

Get the number of RUs per EHT-SIG-B content channel.

This function will be used once EHT PHY headers are implemented.

Parameters

channelWidth	the channel width occupied by the PPDU (in MHz)
ehtPpduType	the EHT_PPDU_TYPE used by the PPDU
ruAllocation	8 bit RU_ALLOCATION per 20 MHz
compression	flag whether compression mode is used by the PPDU
numMuMimoUsers	the number of MU-MIMO users addressed by the PPDU