The IEEE 802.11ax HE Capabilities. More...

#include "he-capabilities.h"

Inheritance diagram for ns3::HeCapabilities:

Public Member Functions
	HeCapabilities ()

uint8_t	DeserializeInformationField (Buffer::Iterator start, uint8_t length)
	Deserialize information field. More...

WifiInformationElementId	ElementId () const
	Get the wifi information element ID. More...

uint8_t	GetChannelWidthSet (void) const
	Get channel width set. More...

uint8_t	GetHeLtfAndGiForHePpdus (void) const
	Get HE LTF and GI for HE PDPUs. More...

uint32_t	GetHeMacCapabilitiesInfo1 () const
	Return the 4 first octets of the HE MAC Capabilities Info field in the HE Capabilities information element. More...

uint8_t	GetHeMacCapabilitiesInfo2 () const
	Return the last octet of the HE MAC Capabilities Info field in the HE Capabilities information element. More...

uint64_t	GetHePhyCapabilitiesInfo1 () const
	Return the 8 first octets of the HE PHY Capabilities Info field in the HE Capabilities information element. More...

uint8_t	GetHePhyCapabilitiesInfo2 () const
	Return the last octet of the HE PHY Capabilities Info field in the HE Capabilities information element. More...

uint8_t	GetHighestMcsSupported (void) const
	Get highest MCS supported. More...

uint8_t	GetHighestNssSupported (void) const
	Get highest NSS supported. More...

uint8_t	GetInformationFieldSize () const
	Get information field size. More...

uint16_t	GetSerializedSize () const
	Set serialize size function. More...

uint16_t	GetSupportedMcsAndNss () const
	Return the MCS and NSS field in the HE Capabilities information element. More...

bool	IsSupportedRxMcs (uint8_t mcs) const
	Is reeive MCS supported. More...

bool	IsSupportedTxMcs (uint8_t mcs) const
	Is transmit MCS supported. More...

Buffer::Iterator	Serialize (Buffer::Iterator start) const
	Serialize function. More...

void	SerializeInformationField (Buffer::Iterator start) const
	Serialize information field. More...

void	SetChannelWidthSet (uint8_t channelWidthSet)
	Set channel width set. More...

void	SetHeLtfAndGiForHePpdus (uint8_t heLtfAndGiForHePpdus)
	Set HE LTF and GI for HE PDPUs. More...

void	SetHeMacCapabilitiesInfo (uint32_t ctrl1, uint8_t ctrl2)
	Set the HE MAC Capabilities Info field in the HE Capabilities information element. More...

void	SetHePhyCapabilitiesInfo (uint64_t ctrl1, uint8_t ctrl2)
	Set the HE PHY Capabilities Info field in the HE Capabilities information element. More...

void	SetHeSupported (uint8_t hesupported)
	Set HE supported. More...

void	SetHighestMcsSupported (uint8_t mcs)
	Set highest MCS supported. More...

void	SetHighestNssSupported (uint8_t nss)
	Set highest NSS supported. More...

void	SetMaxAmpduLengthExponent (uint8_t exponent)
	Set maximum AMPDU length exponent. More...

void	SetSupportedMcsAndNss (uint16_t ctrl)
	Set the MCS and NSS field in the HE Capabilities information element. More...

Public Member Functions inherited from ns3::WifiInformationElement
virtual	~WifiInformationElement ()

Buffer::Iterator	Deserialize (Buffer::Iterator i)
	Deserialize entire IE, which must be present. More...

Buffer::Iterator	DeserializeIfPresent (Buffer::Iterator i)
	Deserialize entire IE if it is present. More...

uint16_t	GetSerializedSize () const
	Get the size of the serialized IE including Element ID and length fields. More...

virtual bool	operator== (WifiInformationElement const &a) const
	Compare two IEs for equality by ID & Length, and then through memcmp of serialised version. More...

virtual void	Print (std::ostream &os) const
	Generate human-readable form of IE. More...

Buffer::Iterator	Serialize (Buffer::Iterator i) const
	Serialize entire IE including Element ID and length fields. More...

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

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

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator. More...

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

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

Private Attributes
uint8_t	m_32bitBaBitmapSupport
	32bit BA bitmap support More...

uint8_t	m_4TimesHeLtfAnd800NsGiSupportForHePpdus
	4 times HE LFT and 800 HS GI support for HE PPDUs More...

uint8_t	m_aBqrSupport
	ABQR support. More...

uint8_t	m_aBsrSupport
	BSR support. More...

uint8_t	m_ackEnabledMultiTidAggregationSupport
	ack enabled multi TID aggregation support More...

uint8_t	m_allAckSupport
	ack support More...

uint8_t	m_amsduFragmentationSupport
	AMSDU fragmentation support. More...

uint8_t	m_beamformeeStsForLargerThan80Mhz
	beam formee STS for > 80MHz More...

uint8_t	m_beamformeeStsForSmallerOrEqualThan80Mhz
	beam formee STS for < 80 MHz More...

uint8_t	m_beamformingFeedbackWithTriggerFrame
	beam forming feedback with trigger frame More...

uint8_t	m_broadcastTwtSupport
	broadcast TXT support More...

uint8_t	m_bsrpAmpduAggregation
	BSRP AMPDU aggregation. More...

uint8_t	m_channelWidthSet
	channel width set More...

uint8_t	m_codebookSize42ForSuSupport
	codebook size 42 for SU More...

uint8_t	m_codebookSize75ForSuSupport
	codebook size 75 for SU More...

uint8_t	m_dcmEncodingRx
	DCM encoding receive. More...

uint8_t	m_dcmEncodingTx
	DCM encoding transmit. More...

uint8_t	m_deviceClass
	device class More...

uint8_t	m_dlMuMimoOnPartialBandwidth
	DL MU MIMO on partial bandwidth. More...

uint8_t	m_doppler
	doppler More...

uint8_t	m_dualBandSupport
	dual band support More...

uint8_t	m_flexibleTwtScheduleSupport
	flexible TWT schedule support More...

uint8_t	m_fragmentationSupport
	fragmentation support More...

uint8_t	m_groupAddressedMultiStaBlockAckInDlMuSupport
	group addressed multi STA block ack in DL support More...

uint8_t	m_heErSuPpduPayload
	HE ER SU PPDU payload. More...

uint8_t	m_heLinkAdaptation
	HE link adaptation. More...

uint8_t	m_heLtfAndGiForHePpdus
	HE LTF and GI for HE PDUs. More...

uint8_t	m_heLtfAndGiForNdp
	HE LTF and GI for NDP. More...

uint8_t	m_heSupported
	This is used to decide if this element should be added to the frame or not. More...

uint8_t	m_highestMcsSupported
	highest MCS support More...

uint8_t	m_highestNssSupportedM1
	highest NSS support M1 More...

uint8_t	m_ldpcCodingInPayload
	LDPC coding in payload. More...

uint8_t	m_maximumAmpduLengthExponent
	maximum AMPDU length exponenet More...

uint8_t	m_maximumNumberOfFragmentedMsdus
	maximum number of fragmentation MSDUs More...

uint8_t	m_minimumFragmentSize
	minimum fragment size More...

uint8_t	m_muBeamformer
	MU beam former. More...

uint8_t	m_muCascadeSupport
	MU cascade support. More...

uint8_t	m_multiTidAggregationSupport
	multi TID aggregation support More...

uint8_t	m_ngEqual16ForMuFeedbackSupport
	equal 16 for MU feedback More...

uint8_t	m_ngEqual16ForSuFeedbackSupport
	equal 16 for SU feedback More...

uint8_t	m_nstsTotalForLargerThan80Mhz
	STS total for > 80 MHz. More...

uint8_t	m_nstsTotalForSmallerOrEqualThan80Mhz
	STS total for < 80 MHz. More...

uint8_t	m_numberOfSoundingDimensionsForLargerThan80Mhz
	of sounding dimensions for > 80 MHz More...

uint8_t	m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz
	of sounding diemnsions for < 80 MHz More...

uint8_t	m_ofdmaRaSupport
	OFDM RA support. More...

uint8_t	m_omiAcontrolSupport
	OMI A control support. More...

uint8_t	m_plusHtcHeSupport
	HTC HE support. More...

uint8_t	m_powerBoostFactorAlphaSupport
	power boost factor alpha support More...

uint8_t	m_ppeThresholdPresent
	PPE threshold present. More...

uint8_t	m_preamblePuncturingRx
	preamble puncturing receive More...

uint8_t	m_qtpSupport
	QTP support. More...

std::vector< uint8_t >	m_rxBwMap
	receive BW map More...

uint8_t	m_rxControlFrameToMultiBss
	receive control frame to multi bias More...

uint8_t	m_srpBasedSrSupport
	SRP based SR support. More...

uint8_t	m_stbcTxAndRx
	STBC transmit and receive. More...

uint8_t	m_suBeamformee
	SU beam formee. More...

uint8_t	m_suBeamformer
	SU beam former. More...

uint8_t	m_triggerFrameMacPaddingDuration
	trigger frame MAC padding duration More...

uint8_t	m_twtRequesterSupport
	TWT requester support. More...

uint8_t	m_twtResponderSupport
	TWT responder support. More...

std::vector< uint8_t >	m_txBwMap
	transmit BW map More...

uint8_t	m_ulHeMuPpduPayloadSupport
	UL HE MU PDPU payload support. More...

uint8_t	m_ulMu
	UL MU. More...

uint8_t	m_ulMuResponseSchedulingSupport
	UL MU response scheduling support. More...

Detailed Description

The IEEE 802.11ax HE Capabilities.

Definition at line 33 of file he-capabilities.h.

Constructor & Destructor Documentation

◆ HeCapabilities()

ns3::HeCapabilities::HeCapabilities ( )

Definition at line 25 of file he-capabilities.cc.

References m_rxBwMap, and m_txBwMap.

Member Function Documentation

◆ DeserializeInformationField()

uint8_t ns3::HeCapabilities::DeserializeInformationField	(	Buffer::Iterator	start,
		uint8_t	length
	)

virtual

Deserialize information field.

Parameters

start	the information field iterator
length	the length

Returns: the information field size

Implements ns3::WifiInformationElement.

Definition at line 149 of file he-capabilities.cc.

References ns3::Buffer::Iterator::ReadLsbtohU32(), ns3::Buffer::Iterator::ReadLsbtohU64(), ns3::Buffer::Iterator::ReadU16(), ns3::Buffer::Iterator::ReadU8(), SetHeMacCapabilitiesInfo(), SetHePhyCapabilitiesInfo(), SetSupportedMcsAndNss(), and visualizer.core::start().

◆ ElementId()

WifiInformationElementId ns3::HeCapabilities::ElementId ( ) const

virtual

Get the wifi information element ID.

Returns: the wifi information element ID

Implements ns3::WifiInformationElement.

Definition at line 94 of file he-capabilities.cc.

References IE_HE_CAPABILITIES.

◆ GetChannelWidthSet()

uint8_t ns3::HeCapabilities::GetChannelWidthSet ( void ) const

Get channel width set.

Returns: the channel width set

Definition at line 449 of file he-capabilities.cc.

References m_channelWidthSet.

Referenced by ns3::WifiRemoteStationManager::AddStationHeCapabilities().

◆ GetHeLtfAndGiForHePpdus()

uint8_t ns3::HeCapabilities::GetHeLtfAndGiForHePpdus ( void ) const

Get HE LTF and GI for HE PDPUs.

Returns: the HE LTF and GI

Definition at line 455 of file he-capabilities.cc.

References m_heLtfAndGiForHePpdus.

Referenced by ns3::WifiRemoteStationManager::AddStationHeCapabilities().

◆ GetHeMacCapabilitiesInfo1()

uint32_t ns3::HeCapabilities::GetHeMacCapabilitiesInfo1 ( ) const

Return the 4 first octets of the HE MAC Capabilities Info field in the HE Capabilities information element.

Returns: the 4 first octets of the HE MAC Capabilities Info field in the HE Capabilities information element

Definition at line 196 of file he-capabilities.cc.

References m_32bitBaBitmapSupport, m_aBsrSupport, m_ackEnabledMultiTidAggregationSupport, m_allAckSupport, m_amsduFragmentationSupport, m_broadcastTwtSupport, m_flexibleTwtScheduleSupport, m_fragmentationSupport, m_groupAddressedMultiStaBlockAckInDlMuSupport, m_heLinkAdaptation, m_maximumAmpduLengthExponent, m_maximumNumberOfFragmentedMsdus, m_minimumFragmentSize, m_muCascadeSupport, m_multiTidAggregationSupport, m_ofdmaRaSupport, m_omiAcontrolSupport, m_plusHtcHeSupport, m_rxControlFrameToMultiBss, m_triggerFrameMacPaddingDuration, m_twtRequesterSupport, m_twtResponderSupport, and m_ulMuResponseSchedulingSupport.

Referenced by ns3::operator<<(), and SerializeInformationField().

◆ GetHeMacCapabilitiesInfo2()

uint8_t ns3::HeCapabilities::GetHeMacCapabilitiesInfo2 ( ) const

Return the last octet of the HE MAC Capabilities Info field in the HE Capabilities information element.

Returns: the last octet of the HE MAC Capabilities Info field in the HE Capabilities information element

Definition at line 226 of file he-capabilities.cc.

References m_aBqrSupport, m_bsrpAmpduAggregation, and m_qtpSupport.

Referenced by ns3::operator<<(), and SerializeInformationField().

◆ GetHePhyCapabilitiesInfo1()

uint64_t ns3::HeCapabilities::GetHePhyCapabilitiesInfo1 ( ) const

Return the 8 first octets of the HE PHY Capabilities Info field in the HE Capabilities information element.

Returns: the 8 first octets of the HE PHY Capabilities Info field in the HE Capabilities information element

Definition at line 274 of file he-capabilities.cc.

References m_beamformeeStsForLargerThan80Mhz, m_beamformeeStsForSmallerOrEqualThan80Mhz, m_beamformingFeedbackWithTriggerFrame, m_channelWidthSet, m_codebookSize42ForSuSupport, m_codebookSize75ForSuSupport, m_dcmEncodingRx, m_dcmEncodingTx, m_deviceClass, m_dlMuMimoOnPartialBandwidth, m_doppler, m_dualBandSupport, m_heErSuPpduPayload, m_heLtfAndGiForHePpdus, m_heLtfAndGiForNdp, m_ldpcCodingInPayload, m_muBeamformer, m_ngEqual16ForMuFeedbackSupport, m_ngEqual16ForSuFeedbackSupport, m_nstsTotalForLargerThan80Mhz, m_nstsTotalForSmallerOrEqualThan80Mhz, m_numberOfSoundingDimensionsForLargerThan80Mhz, m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz, m_powerBoostFactorAlphaSupport, m_ppeThresholdPresent, m_preamblePuncturingRx, m_srpBasedSrSupport, m_stbcTxAndRx, m_suBeamformee, m_suBeamformer, m_ulHeMuPpduPayloadSupport, and m_ulMu.

Referenced by ns3::operator<<(), and SerializeInformationField().

◆ GetHePhyCapabilitiesInfo2()

uint8_t ns3::HeCapabilities::GetHePhyCapabilitiesInfo2 ( ) const

Return the last octet of the HE PHY Capabilities Info field in the HE Capabilities information element.

Returns: the last octet of the HE PHY Capabilities Info field in the HE Capabilities information element

Definition at line 313 of file he-capabilities.cc.

References m_4TimesHeLtfAnd800NsGiSupportForHePpdus.

Referenced by ns3::operator<<(), and SerializeInformationField().

◆ GetHighestMcsSupported()

uint8_t ns3::HeCapabilities::GetHighestMcsSupported ( void ) const

Get highest MCS supported.

Returns: the highest MCS is supported

Definition at line 461 of file he-capabilities.cc.

References m_highestMcsSupported.

Referenced by ns3::WifiRemoteStationManager::AddStationHeCapabilities().

◆ GetHighestNssSupported()

uint8_t ns3::HeCapabilities::GetHighestNssSupported ( void ) const

Get highest NSS supported.

Returns: the highest supported NSS

Definition at line 467 of file he-capabilities.cc.

References m_highestNssSupportedM1.

Referenced by ns3::WifiRemoteStationManager::AddStationHeCapabilities().

◆ GetInformationFieldSize()

uint8_t ns3::HeCapabilities::GetInformationFieldSize ( void ) const

virtual

Get information field size.

Returns: the information field size

Implements ns3::WifiInformationElement.

Definition at line 106 of file he-capabilities.cc.

References m_heSupported, and NS_ASSERT.

◆ GetSerializedSize()

uint16_t ns3::HeCapabilities::GetSerializedSize ( void ) const

Set serialize size function.

Returns: the serialized size

Definition at line 124 of file he-capabilities.cc.

References ns3::WifiInformationElement::GetSerializedSize(), and m_heSupported.

Referenced by ns3::MgtAssocRequestHeader::GetSerializedSize(), ns3::MgtReassocRequestHeader::GetSerializedSize(), ns3::MgtAssocResponseHeader::GetSerializedSize(), ns3::MgtProbeRequestHeader::GetSerializedSize(), and ns3::MgtProbeResponseHeader::GetSerializedSize().

◆ GetSupportedMcsAndNss()

uint16_t ns3::HeCapabilities::GetSupportedMcsAndNss ( ) const

Return the MCS and NSS field in the HE Capabilities information element.

Returns: the MCS and NSS field in the HE Capabilities information element

Definition at line 339 of file he-capabilities.cc.

References m_highestMcsSupported, m_highestNssSupportedM1, m_rxBwMap, and m_txBwMap.

Referenced by ns3::operator<<(), ns3::ApWifiMac::Receive(), and SerializeInformationField().

◆ IsSupportedRxMcs()

bool ns3::HeCapabilities::IsSupportedRxMcs ( uint8_t mcs ) const

Is reeive MCS supported.

Parameters

mcs the MCS

Returns: true if MCS receive supported

Definition at line 387 of file he-capabilities.cc.

References m_highestMcsSupported, and NS_ASSERT.

Referenced by ns3::StaWifiMac::UpdateApInfoFromAssocResp(), and ns3::StaWifiMac::UpdateApInfoFromBeacon().

◆ IsSupportedTxMcs()

bool ns3::HeCapabilities::IsSupportedTxMcs ( uint8_t mcs ) const

Is transmit MCS supported.

Parameters

mcs the MCS

Returns: true if MCS transmit supported

Definition at line 360 of file he-capabilities.cc.

References m_highestMcsSupported, and NS_ASSERT.

Referenced by ns3::ApWifiMac::Receive().

◆ Serialize()

Buffer::Iterator ns3::HeCapabilities::Serialize ( Buffer::Iterator start ) const

Serialize function.

Parameters

start the information element iterator

Returns: true if MCS transmit supported

Definition at line 114 of file he-capabilities.cc.

References m_heSupported, and ns3::WifiInformationElement::Serialize().

Referenced by ns3::MgtAssocRequestHeader::Serialize(), ns3::MgtReassocRequestHeader::Serialize(), ns3::MgtAssocResponseHeader::Serialize(), ns3::MgtProbeRequestHeader::Serialize(), and ns3::MgtProbeResponseHeader::Serialize().

◆ SerializeInformationField()

void ns3::HeCapabilities::SerializeInformationField ( Buffer::Iterator start ) const

virtual

Serialize information field.

Parameters

start the information field iterator

Implements ns3::WifiInformationElement.

Definition at line 134 of file he-capabilities.cc.

References GetHeMacCapabilitiesInfo1(), GetHeMacCapabilitiesInfo2(), GetHePhyCapabilitiesInfo1(), GetHePhyCapabilitiesInfo2(), GetSupportedMcsAndNss(), m_heSupported, and visualizer.core::start().

◆ SetChannelWidthSet()

void ns3::HeCapabilities::SetChannelWidthSet ( uint8_t channelWidthSet )

Set channel width set.

Parameters

channelWidthSet the channel width set

Definition at line 414 of file he-capabilities.cc.

References m_channelWidthSet, and NS_ASSERT.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetHeLtfAndGiForHePpdus()

void ns3::HeCapabilities::SetHeLtfAndGiForHePpdus ( uint8_t heLtfAndGiForHePpdus )

Set HE LTF and GI for HE PDPUs.

Parameters

heLtfAndGiForHePpdus the HE LTF and GI

Definition at line 421 of file he-capabilities.cc.

References m_heLtfAndGiForHePpdus, and NS_ASSERT.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetHeMacCapabilitiesInfo()

void ns3::HeCapabilities::SetHeMacCapabilitiesInfo	(	uint32_t	ctrl1,
		uint8_t	ctrl2
	)

Set the HE MAC Capabilities Info field in the HE Capabilities information element.

Parameters

ctrl1	the HE MAC Capabilities Info field 1 in the HE Capabilities information element
ctrl2	the HE MAC Capabilities Info field 2 in the HE Capabilities information element

Definition at line 165 of file he-capabilities.cc.

References m_32bitBaBitmapSupport, m_aBqrSupport, m_aBsrSupport, m_ackEnabledMultiTidAggregationSupport, m_allAckSupport, m_amsduFragmentationSupport, m_broadcastTwtSupport, m_bsrpAmpduAggregation, m_flexibleTwtScheduleSupport, m_fragmentationSupport, m_groupAddressedMultiStaBlockAckInDlMuSupport, m_heLinkAdaptation, m_maximumAmpduLengthExponent, m_maximumNumberOfFragmentedMsdus, m_minimumFragmentSize, m_muCascadeSupport, m_multiTidAggregationSupport, m_ofdmaRaSupport, m_omiAcontrolSupport, m_plusHtcHeSupport, m_qtpSupport, m_rxControlFrameToMultiBss, m_triggerFrameMacPaddingDuration, m_twtRequesterSupport, m_twtResponderSupport, and m_ulMuResponseSchedulingSupport.

Referenced by DeserializeInformationField().

◆ SetHePhyCapabilitiesInfo()

void ns3::HeCapabilities::SetHePhyCapabilitiesInfo	(	uint64_t	ctrl1,
		uint8_t	ctrl2
	)

Set the HE PHY Capabilities Info field in the HE Capabilities information element.

Parameters

ctrl1	the HE PHY Capabilities Info field 1 in the HE Capabilities information element
ctrl2	the HE PHY Capabilities Info field 2 in the HE Capabilities information element

Definition at line 236 of file he-capabilities.cc.

References m_4TimesHeLtfAnd800NsGiSupportForHePpdus, m_beamformeeStsForLargerThan80Mhz, m_beamformeeStsForSmallerOrEqualThan80Mhz, m_beamformingFeedbackWithTriggerFrame, m_channelWidthSet, m_codebookSize42ForSuSupport, m_codebookSize75ForSuSupport, m_dcmEncodingRx, m_dcmEncodingTx, m_deviceClass, m_dlMuMimoOnPartialBandwidth, m_doppler, m_dualBandSupport, m_heErSuPpduPayload, m_heLtfAndGiForHePpdus, m_heLtfAndGiForNdp, m_ldpcCodingInPayload, m_muBeamformer, m_ngEqual16ForMuFeedbackSupport, m_ngEqual16ForSuFeedbackSupport, m_nstsTotalForLargerThan80Mhz, m_nstsTotalForSmallerOrEqualThan80Mhz, m_numberOfSoundingDimensionsForLargerThan80Mhz, m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz, m_powerBoostFactorAlphaSupport, m_ppeThresholdPresent, m_preamblePuncturingRx, m_srpBasedSrSupport, m_stbcTxAndRx, m_suBeamformee, m_suBeamformer, m_ulHeMuPpduPayloadSupport, and m_ulMu.

Referenced by DeserializeInformationField().

◆ SetHeSupported()

void ns3::HeCapabilities::SetHeSupported ( uint8_t hesupported )

Set HE supported.

Parameters

hesupported the HE supported indicator

Definition at line 100 of file he-capabilities.cc.

References m_heSupported.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetHighestMcsSupported()

void ns3::HeCapabilities::SetHighestMcsSupported ( uint8_t mcs )

Set highest MCS supported.

Parameters

mcs the MCS

Definition at line 435 of file he-capabilities.cc.

References m_highestMcsSupported, and NS_ASSERT.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetHighestNssSupported()

void ns3::HeCapabilities::SetHighestNssSupported ( uint8_t nss )

Set highest NSS supported.

Parameters

nss the NSS

Definition at line 442 of file he-capabilities.cc.

References m_highestNssSupportedM1, and NS_ASSERT.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetMaxAmpduLengthExponent()

void ns3::HeCapabilities::SetMaxAmpduLengthExponent ( uint8_t exponent )

Set maximum AMPDU length exponent.

Parameters

exponent the maximum AMPDU length exponent

Definition at line 428 of file he-capabilities.cc.

References m_maximumAmpduLengthExponent, and NS_ASSERT.

Referenced by ns3::RegularWifiMac::GetHeCapabilities().

◆ SetSupportedMcsAndNss()

void ns3::HeCapabilities::SetSupportedMcsAndNss ( uint16_t ctrl )

Set the MCS and NSS field in the HE Capabilities information element.

Parameters

ctrl	the MCS and NSS field in the HE Capabilities information element

Definition at line 321 of file he-capabilities.cc.

References m_highestMcsSupported, m_highestNssSupportedM1, m_rxBwMap, m_txBwMap, and NS_ASSERT.

Referenced by DeserializeInformationField().

Member Data Documentation

◆ m_32bitBaBitmapSupport

uint8_t ns3::HeCapabilities::m_32bitBaBitmapSupport

private

32bit BA bitmap support

Definition at line 229 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_4TimesHeLtfAnd800NsGiSupportForHePpdus

uint8_t ns3::HeCapabilities::m_4TimesHeLtfAnd800NsGiSupportForHePpdus

private

4 times HE LFT and 800 HS GI support for HE PPDUs

Definition at line 276 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo2(), and SetHePhyCapabilitiesInfo().

◆ m_aBqrSupport

uint8_t ns3::HeCapabilities::m_aBqrSupport

private

ABQR support.

Definition at line 241 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo2(), and SetHeMacCapabilitiesInfo().

◆ m_aBsrSupport

uint8_t ns3::HeCapabilities::m_aBsrSupport

private

BSR support.

Definition at line 227 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_ackEnabledMultiTidAggregationSupport

uint8_t ns3::HeCapabilities::m_ackEnabledMultiTidAggregationSupport

private

ack enabled multi TID aggregation support

Definition at line 231 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_allAckSupport

uint8_t ns3::HeCapabilities::m_allAckSupport

private

ack support

Definition at line 225 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_amsduFragmentationSupport

uint8_t ns3::HeCapabilities::m_amsduFragmentationSupport

private

AMSDU fragmentation support.

Definition at line 236 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_beamformeeStsForLargerThan80Mhz

uint8_t ns3::HeCapabilities::m_beamformeeStsForLargerThan80Mhz

private

beam formee STS for > 80MHz

Definition at line 262 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_beamformeeStsForSmallerOrEqualThan80Mhz

uint8_t ns3::HeCapabilities::m_beamformeeStsForSmallerOrEqualThan80Mhz

private

beam formee STS for < 80 MHz

Definition at line 260 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_beamformingFeedbackWithTriggerFrame

uint8_t ns3::HeCapabilities::m_beamformingFeedbackWithTriggerFrame

private

beam forming feedback with trigger frame

Definition at line 270 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_broadcastTwtSupport

uint8_t ns3::HeCapabilities::m_broadcastTwtSupport

private

broadcast TXT support

Definition at line 228 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_bsrpAmpduAggregation

uint8_t ns3::HeCapabilities::m_bsrpAmpduAggregation

private

BSRP AMPDU aggregation.

Definition at line 239 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo2(), and SetHeMacCapabilitiesInfo().

◆ m_channelWidthSet

uint8_t ns3::HeCapabilities::m_channelWidthSet

private

channel width set

Definition at line 245 of file he-capabilities.h.

Referenced by GetChannelWidthSet(), GetHePhyCapabilitiesInfo1(), SetChannelWidthSet(), and SetHePhyCapabilitiesInfo().

◆ m_codebookSize42ForSuSupport

uint8_t ns3::HeCapabilities::m_codebookSize42ForSuSupport

private

codebook size 42 for SU

Definition at line 268 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_codebookSize75ForSuSupport

uint8_t ns3::HeCapabilities::m_codebookSize75ForSuSupport

private

codebook size 75 for SU

Definition at line 269 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_dcmEncodingRx

uint8_t ns3::HeCapabilities::m_dcmEncodingRx

private

DCM encoding receive.

Definition at line 255 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_dcmEncodingTx

uint8_t ns3::HeCapabilities::m_dcmEncodingTx

private

DCM encoding transmit.

Definition at line 254 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_deviceClass

uint8_t ns3::HeCapabilities::m_deviceClass

private

device class

Definition at line 247 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_dlMuMimoOnPartialBandwidth

uint8_t ns3::HeCapabilities::m_dlMuMimoOnPartialBandwidth

private

DL MU MIMO on partial bandwidth.

Definition at line 272 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_doppler

uint8_t ns3::HeCapabilities::m_doppler

private

doppler

Definition at line 252 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_dualBandSupport

uint8_t ns3::HeCapabilities::m_dualBandSupport

private

dual band support

Definition at line 244 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_flexibleTwtScheduleSupport

uint8_t ns3::HeCapabilities::m_flexibleTwtScheduleSupport

private

flexible TWT schedule support

Definition at line 237 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_fragmentationSupport

uint8_t ns3::HeCapabilities::m_fragmentationSupport

private

fragmentation support

Definition at line 219 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_groupAddressedMultiStaBlockAckInDlMuSupport

uint8_t ns3::HeCapabilities::m_groupAddressedMultiStaBlockAckInDlMuSupport

private

group addressed multi STA block ack in DL support

Definition at line 232 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_heErSuPpduPayload

uint8_t ns3::HeCapabilities::m_heErSuPpduPayload

private

HE ER SU PPDU payload.

Definition at line 271 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_heLinkAdaptation

uint8_t ns3::HeCapabilities::m_heLinkAdaptation

private

HE link adaptation.

Definition at line 224 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_heLtfAndGiForHePpdus

uint8_t ns3::HeCapabilities::m_heLtfAndGiForHePpdus

private

HE LTF and GI for HE PDUs.

Definition at line 249 of file he-capabilities.h.

Referenced by GetHeLtfAndGiForHePpdus(), GetHePhyCapabilitiesInfo1(), SetHeLtfAndGiForHePpdus(), and SetHePhyCapabilitiesInfo().

◆ m_heLtfAndGiForNdp

uint8_t ns3::HeCapabilities::m_heLtfAndGiForNdp

private

HE LTF and GI for NDP.

Definition at line 250 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_heSupported

uint8_t ns3::HeCapabilities::m_heSupported

private

This is used to decide if this element should be added to the frame or not.

Definition at line 285 of file he-capabilities.h.

Referenced by GetInformationFieldSize(), GetSerializedSize(), Serialize(), SerializeInformationField(), and SetHeSupported().

◆ m_highestMcsSupported

uint8_t ns3::HeCapabilities::m_highestMcsSupported

private

highest MCS support

Definition at line 280 of file he-capabilities.h.

Referenced by GetHighestMcsSupported(), GetSupportedMcsAndNss(), IsSupportedRxMcs(), IsSupportedTxMcs(), SetHighestMcsSupported(), and SetSupportedMcsAndNss().

◆ m_highestNssSupportedM1

uint8_t ns3::HeCapabilities::m_highestNssSupportedM1

private

highest NSS support M1

Definition at line 279 of file he-capabilities.h.

Referenced by GetHighestNssSupported(), GetSupportedMcsAndNss(), SetHighestNssSupported(), and SetSupportedMcsAndNss().

◆ m_ldpcCodingInPayload

uint8_t ns3::HeCapabilities::m_ldpcCodingInPayload

private

LDPC coding in payload.

Definition at line 248 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_maximumAmpduLengthExponent

uint8_t ns3::HeCapabilities::m_maximumAmpduLengthExponent

private

maximum AMPDU length exponenet

Definition at line 235 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), SetHeMacCapabilitiesInfo(), and SetMaxAmpduLengthExponent().

◆ m_maximumNumberOfFragmentedMsdus

uint8_t ns3::HeCapabilities::m_maximumNumberOfFragmentedMsdus

private

maximum number of fragmentation MSDUs

Definition at line 220 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_minimumFragmentSize

uint8_t ns3::HeCapabilities::m_minimumFragmentSize

private

minimum fragment size

Definition at line 221 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_muBeamformer

uint8_t ns3::HeCapabilities::m_muBeamformer

private

MU beam former.

Definition at line 259 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_muCascadeSupport

uint8_t ns3::HeCapabilities::m_muCascadeSupport

private

MU cascade support.

Definition at line 230 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_multiTidAggregationSupport

uint8_t ns3::HeCapabilities::m_multiTidAggregationSupport

private

multi TID aggregation support

Definition at line 223 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_ngEqual16ForMuFeedbackSupport

uint8_t ns3::HeCapabilities::m_ngEqual16ForMuFeedbackSupport

private

equal 16 for MU feedback

Definition at line 267 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_ngEqual16ForSuFeedbackSupport

uint8_t ns3::HeCapabilities::m_ngEqual16ForSuFeedbackSupport

private

equal 16 for SU feedback

Definition at line 266 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_nstsTotalForLargerThan80Mhz

uint8_t ns3::HeCapabilities::m_nstsTotalForLargerThan80Mhz

private

STS total for > 80 MHz.

Definition at line 263 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_nstsTotalForSmallerOrEqualThan80Mhz

uint8_t ns3::HeCapabilities::m_nstsTotalForSmallerOrEqualThan80Mhz

private

STS total for < 80 MHz.

Definition at line 261 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_numberOfSoundingDimensionsForLargerThan80Mhz

uint8_t ns3::HeCapabilities::m_numberOfSoundingDimensionsForLargerThan80Mhz

private

of sounding dimensions for > 80 MHz

Definition at line 265 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz

uint8_t ns3::HeCapabilities::m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz

private

of sounding diemnsions for < 80 MHz

Definition at line 264 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_ofdmaRaSupport

uint8_t ns3::HeCapabilities::m_ofdmaRaSupport

private

OFDM RA support.

Definition at line 234 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_omiAcontrolSupport

uint8_t ns3::HeCapabilities::m_omiAcontrolSupport

private

OMI A control support.

Definition at line 233 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_plusHtcHeSupport

uint8_t ns3::HeCapabilities::m_plusHtcHeSupport

private

HTC HE support.

Definition at line 216 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_powerBoostFactorAlphaSupport

uint8_t ns3::HeCapabilities::m_powerBoostFactorAlphaSupport

private

power boost factor alpha support

Definition at line 275 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_ppeThresholdPresent

uint8_t ns3::HeCapabilities::m_ppeThresholdPresent

private

PPE threshold present.

Definition at line 273 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_preamblePuncturingRx

uint8_t ns3::HeCapabilities::m_preamblePuncturingRx

private

preamble puncturing receive

Definition at line 246 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_qtpSupport

uint8_t ns3::HeCapabilities::m_qtpSupport

private

QTP support.

Definition at line 240 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo2(), and SetHeMacCapabilitiesInfo().

◆ m_rxBwMap

std::vector<uint8_t> ns3::HeCapabilities::m_rxBwMap

private

receive BW map

Definition at line 282 of file he-capabilities.h.

Referenced by GetSupportedMcsAndNss(), HeCapabilities(), and SetSupportedMcsAndNss().

◆ m_rxControlFrameToMultiBss

uint8_t ns3::HeCapabilities::m_rxControlFrameToMultiBss

private

receive control frame to multi bias

Definition at line 238 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_srpBasedSrSupport

uint8_t ns3::HeCapabilities::m_srpBasedSrSupport

private

SRP based SR support.

Definition at line 274 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_stbcTxAndRx

uint8_t ns3::HeCapabilities::m_stbcTxAndRx

private

STBC transmit and receive.

Definition at line 251 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_suBeamformee

uint8_t ns3::HeCapabilities::m_suBeamformee

private

SU beam formee.

Definition at line 258 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_suBeamformer

uint8_t ns3::HeCapabilities::m_suBeamformer

private

SU beam former.

Definition at line 257 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_triggerFrameMacPaddingDuration

uint8_t ns3::HeCapabilities::m_triggerFrameMacPaddingDuration

private

trigger frame MAC padding duration

Definition at line 222 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_twtRequesterSupport

uint8_t ns3::HeCapabilities::m_twtRequesterSupport

private

TWT requester support.

Definition at line 217 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_twtResponderSupport

uint8_t ns3::HeCapabilities::m_twtResponderSupport

private

TWT responder support.

Definition at line 218 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

◆ m_txBwMap

std::vector<uint8_t> ns3::HeCapabilities::m_txBwMap

private

transmit BW map

Definition at line 281 of file he-capabilities.h.

Referenced by GetSupportedMcsAndNss(), HeCapabilities(), and SetSupportedMcsAndNss().

◆ m_ulHeMuPpduPayloadSupport

uint8_t ns3::HeCapabilities::m_ulHeMuPpduPayloadSupport

private

UL HE MU PDPU payload support.

Definition at line 256 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_ulMu

uint8_t ns3::HeCapabilities::m_ulMu

private

UL MU.

Definition at line 253 of file he-capabilities.h.

Referenced by GetHePhyCapabilitiesInfo1(), and SetHePhyCapabilitiesInfo().

◆ m_ulMuResponseSchedulingSupport

uint8_t ns3::HeCapabilities::m_ulMuResponseSchedulingSupport

private

UL MU response scheduling support.

Definition at line 226 of file he-capabilities.h.

Referenced by GetHeMacCapabilitiesInfo1(), and SetHeMacCapabilitiesInfo().

The documentation for this class was generated from the following files:

src/wifi/model/he-capabilities.h
src/wifi/model/he-capabilities.cc

Public Member Functions

Private Attributes

of sounding dimensions for > 80 MHz

of sounding diemnsions for < 80 MHz

Detailed Description

Constructor & Destructor Documentation

◆ HeCapabilities()

Member Function Documentation

◆ DeserializeInformationField()

◆ ElementId()

◆ GetChannelWidthSet()

◆ GetHeLtfAndGiForHePpdus()

◆ GetHeMacCapabilitiesInfo1()

◆ GetHeMacCapabilitiesInfo2()

◆ GetHePhyCapabilitiesInfo1()

◆ GetHePhyCapabilitiesInfo2()

◆ GetHighestMcsSupported()

◆ GetHighestNssSupported()

◆ GetInformationFieldSize()

◆ GetSerializedSize()

◆ GetSupportedMcsAndNss()

◆ IsSupportedRxMcs()

◆ IsSupportedTxMcs()

◆ Serialize()

◆ SerializeInformationField()

◆ SetChannelWidthSet()

◆ SetHeLtfAndGiForHePpdus()

◆ SetHeMacCapabilitiesInfo()

◆ SetHePhyCapabilitiesInfo()

◆ SetHeSupported()

◆ SetHighestMcsSupported()

◆ SetHighestNssSupported()

◆ SetMaxAmpduLengthExponent()

◆ SetSupportedMcsAndNss()

Member Data Documentation

◆ m_32bitBaBitmapSupport

◆ m_4TimesHeLtfAnd800NsGiSupportForHePpdus

◆ m_aBqrSupport

◆ m_aBsrSupport

◆ m_ackEnabledMultiTidAggregationSupport

◆ m_allAckSupport

◆ m_amsduFragmentationSupport

◆ m_beamformeeStsForLargerThan80Mhz

◆ m_beamformeeStsForSmallerOrEqualThan80Mhz

◆ m_beamformingFeedbackWithTriggerFrame

◆ m_broadcastTwtSupport

◆ m_bsrpAmpduAggregation

◆ m_channelWidthSet

◆ m_codebookSize42ForSuSupport

◆ m_codebookSize75ForSuSupport

◆ m_dcmEncodingRx

◆ m_dcmEncodingTx

◆ m_deviceClass

◆ m_dlMuMimoOnPartialBandwidth

◆ m_doppler

◆ m_dualBandSupport

◆ m_flexibleTwtScheduleSupport

◆ m_fragmentationSupport

◆ m_groupAddressedMultiStaBlockAckInDlMuSupport

◆ m_heErSuPpduPayload

◆ m_heLinkAdaptation

◆ m_heLtfAndGiForHePpdus

◆ m_heLtfAndGiForNdp

◆ m_heSupported

◆ m_highestMcsSupported

◆ m_highestNssSupportedM1

◆ m_ldpcCodingInPayload

◆ m_maximumAmpduLengthExponent

◆ m_maximumNumberOfFragmentedMsdus

◆ m_minimumFragmentSize

◆ m_muBeamformer

◆ m_muCascadeSupport

◆ m_multiTidAggregationSupport

◆ m_ngEqual16ForMuFeedbackSupport

◆ m_ngEqual16ForSuFeedbackSupport

◆ m_nstsTotalForLargerThan80Mhz

◆ m_nstsTotalForSmallerOrEqualThan80Mhz

◆ m_numberOfSoundingDimensionsForLargerThan80Mhz

of sounding dimensions for > 80 MHz

◆ m_numberOfSoundingDimensionsForSmallerOrEqualThan80Mhz