The Supported Rates Information ElementThis class knows how to serialise and deserialise the Supported Rates Element that holds the first 8 (non-HT) supported rates. More...

#include "supported-rates.h"

Inheritance diagram for ns3::SupportedRates:

Collaboration diagram for ns3::SupportedRates:

Public Member Functions
	SupportedRates ()

	SupportedRates (const SupportedRates &)
	type conversion operator More...

void	AddBssMembershipSelectorRate (uint32_t bs)
	Add a special value to the supported rate set, corresponding to a BSS membership selector. More...

void	AddSupportedRate (uint32_t bs)
	Add the given rate to the supported rates. More...

uint8_t	DeserializeInformationField (Buffer::Iterator start, uint8_t length)
	Get the information field size. More...

WifiInformationElementId	ElementId () const
	Get the ElementID. More...

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

uint8_t	GetNRates (void) const
	Return the number of supported rates. More...

uint32_t	GetRate (uint8_t i) const
	Return the rate at the given index. More...

bool	IsBasicRate (uint32_t bs) const
	Check if the given rate is a basic rate. More...

bool	IsBssMembershipSelectorRate (uint32_t bs) const
	Check if the given rate is a BSS membership selector value. More...

bool	IsSupportedRate (uint32_t bs) const
	Check if the given rate is supported. More...

SupportedRates &	operator= (const SupportedRates &rates)
	assignment operator More...

void	SerializeInformationField (Buffer::Iterator start) const
	Get the information field size. More...

void	SetBasicRate (uint32_t bs)
	Set the given rate to basic rates. 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 information elements using Element ID. 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...

Public Attributes
ExtendedSupportedRatesIE	extended
	extended suppoted rates info element More...

Static Public Attributes
static const uint8_t	MAX_SUPPORTED_RATES = 32
	This defines the maximum number of supported rates that a STA is allowed to have. More...

Private Attributes
uint8_t	m_nRates
	Number of supported rates. More...

uint8_t	m_rates [MAX_SUPPORTED_RATES]
	List of supported bitrate (divided by 500000) More...

Friends
class	ExtendedSupportedRatesIE
	We support the Extended Supported Rates Information Element through the ExtendedSupportedRatesIE object which is declared above. More...

Detailed Description

The Supported Rates Information Element

This class knows how to serialise and deserialise the Supported Rates Element that holds the first 8 (non-HT) supported rates.

The ExtendedSupportedRatesIE class (of which an instance exists in objects of this class) deals with rates beyond the first 8.

Definition at line 129 of file supported-rates.h.

Constructor & Destructor Documentation

ns3::SupportedRates::SupportedRates ( )

Definition at line 32 of file supported-rates.cc.

References NS_LOG_FUNCTION.

ns3::SupportedRates::SupportedRates ( const SupportedRates & rates )

type conversion operator

Definition at line 39 of file supported-rates.cc.

References extended, m_nRates, m_rates, MAX_SUPPORTED_RATES, NS_LOG_FUNCTION, and ns3::ExtendedSupportedRatesIE::SetSupportedRates().

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Member Function Documentation

void ns3::SupportedRates::AddBssMembershipSelectorRate ( uint32_t bs )

Add a special value to the supported rate set, corresponding to a BSS membership selector.

Parameters

bs	the special membership selector value (not a valid rate)

Definition at line 121 of file supported-rates.cc.

References BSS_MEMBERSHIP_SELECTOR_HE_PHY, BSS_MEMBERSHIP_SELECTOR_HT_PHY, BSS_MEMBERSHIP_SELECTOR_VHT_PHY, m_nRates, m_rates, NS_ASSERT_MSG, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::StaWifiMac::GetSupportedRates(), and ns3::ApWifiMac::GetSupportedRates().

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void ns3::SupportedRates::AddSupportedRate ( uint32_t bs )

Add the given rate to the supported rates.

Parameters

bs	the rate to be added

Definition at line 59 of file supported-rates.cc.

References BSS_MEMBERSHIP_SELECTOR_HE_PHY, BSS_MEMBERSHIP_SELECTOR_HT_PHY, BSS_MEMBERSHIP_SELECTOR_VHT_PHY, IsBssMembershipSelectorRate(), IsSupportedRate(), m_nRates, m_rates, MAX_SUPPORTED_RATES, NS_ASSERT, NS_ASSERT_MSG, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::MeshWifiInterfaceMac::GetSupportedRates(), ns3::StaWifiMac::GetSupportedRates(), ns3::ApWifiMac::GetSupportedRates(), and SetBasicRate().

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

virtual

Get the information field size.

Parameters

start	the information field iterator
length	the size of the information field (bytes)

Returns: the size of the field read (bytes)

Implements ns3::WifiInformationElement.

Definition at line 222 of file supported-rates.cc.

References m_nRates, m_rates, NS_ASSERT, and ns3::Buffer::Iterator::Read().

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WifiInformationElementId ns3::SupportedRates::ElementId ( ) const

virtual

Get the ElementID.

Returns: the element ID

Implements ns3::WifiInformationElement.

Definition at line 198 of file supported-rates.cc.

References IE_SUPPORTED_RATES.

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

virtual

Get the information field size.

Returns: the information field size

Implements ns3::WifiInformationElement.

Definition at line 204 of file supported-rates.cc.

References m_nRates.

uint8_t ns3::SupportedRates::GetNRates ( void ) const

Return the number of supported rates.

Returns: the number of supported rates

Definition at line 186 of file supported-rates.cc.

References m_nRates.

Referenced by ns3::operator<<().

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uint32_t ns3::SupportedRates::GetRate ( uint8_t i ) const

Return the rate at the given index.

Return the rate (converted back to raw value) at the given index.

Parameters

i	the given index

Returns: the rate

Definition at line 192 of file supported-rates.cc.

References m_rates.

Referenced by ns3::operator<<().

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bool ns3::SupportedRates::IsBasicRate ( uint32_t bs ) const

Check if the given rate is a basic rate.

The rate is encoded as it is serialized to the Supported Rates Information Element (i.e. as a multiple of 500 Kbits/sec, with MSB set to 1).

Parameters

bs	the rate to be checked

Returns: true if the rate is a basic rate, false otherwise

Definition at line 142 of file supported-rates.cc.

References m_nRates, m_rates, and NS_LOG_FUNCTION.

Referenced by ns3::operator<<(), ns3::StaWifiMac::Receive(), and ns3::MeshWifiInterfaceMac::Receive().

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bool ns3::SupportedRates::IsBssMembershipSelectorRate ( uint32_t bs ) const

Check if the given rate is a BSS membership selector value.

The rate is encoded as it is serialized to the Supporting Rates Information Element (i.e. with the MSB set to 1).

Parameters

bs	the rate to be checked

Returns: true if the rate is a BSS membership selector, false otherwise

Definition at line 173 of file supported-rates.cc.

References BSS_MEMBERSHIP_SELECTOR_HE_PHY, BSS_MEMBERSHIP_SELECTOR_HT_PHY, BSS_MEMBERSHIP_SELECTOR_VHT_PHY, and NS_LOG_FUNCTION.

Referenced by AddSupportedRate(), ns3::StaWifiMac::Receive(), and SetBasicRate().

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bool ns3::SupportedRates::IsSupportedRate ( uint32_t bs ) const

Check if the given rate is supported.

The rate is encoded as it is serialized to the Supported Rates Information Element (i.e. as a multiple of 500 Kbits/sec, possibly with MSB set to 1).

Parameters

bs	the rate to be checked

Returns: true if the rate is supported, false otherwise

Definition at line 157 of file supported-rates.cc.

References m_nRates, m_rates, and NS_LOG_FUNCTION.

Referenced by AddSupportedRate(), ns3::MeshWifiInterfaceMac::CheckSupportedRates(), ns3::StaWifiMac::Receive(), ns3::ApWifiMac::Receive(), and ns3::MeshWifiInterfaceMac::Receive().

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SupportedRates & ns3::SupportedRates::operator= ( const SupportedRates & rates )

assignment operator

Parameters

rates the rates to assign

Returns: the assigned value

Definition at line 49 of file supported-rates.cc.

References extended, m_nRates, m_rates, MAX_SUPPORTED_RATES, and ns3::ExtendedSupportedRatesIE::SetSupportedRates().

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

virtual

Get the information field size.

Parameters

start the information field iterator

Implements ns3::WifiInformationElement.

Definition at line 213 of file supported-rates.cc.

References m_nRates, m_rates, and ns3::Buffer::Iterator::Write().

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void ns3::SupportedRates::SetBasicRate ( uint32_t bs )

Set the given rate to basic rates.

Parameters

bs	the rate to be set

Definition at line 98 of file supported-rates.cc.

References AddSupportedRate(), IsBssMembershipSelectorRate(), m_nRates, m_rates, NS_ASSERT_MSG, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::MeshWifiInterfaceMac::GetSupportedRates(), and ns3::ApWifiMac::GetSupportedRates().

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Friends And Related Function Documentation

friend class ExtendedSupportedRatesIE

friend

We support the Extended Supported Rates Information Element through the ExtendedSupportedRatesIE object which is declared above.

We allow this class to be a friend so that it can access our private data detailing the rates, and create an instance as extended.

Definition at line 250 of file supported-rates.h.

Member Data Documentation

ExtendedSupportedRatesIE ns3::SupportedRates::extended

extended suppoted rates info element

Definition at line 251 of file supported-rates.h.

Referenced by ns3::dot11s::PeerLinkOpenStart::Deserialize(), ns3::MgtAssocRequestHeader::Deserialize(), ns3::dot11s::PeerLinkConfirmStart::Deserialize(), ns3::MgtAssocResponseHeader::Deserialize(), ns3::MgtProbeRequestHeader::Deserialize(), ns3::MgtProbeResponseHeader::Deserialize(), ns3::dot11s::PeerLinkOpenStart::GetSerializedSize(), ns3::MgtAssocRequestHeader::GetSerializedSize(), ns3::dot11s::PeerLinkConfirmStart::GetSerializedSize(), ns3::MgtAssocResponseHeader::GetSerializedSize(), ns3::MgtProbeRequestHeader::GetSerializedSize(), ns3::MgtProbeResponseHeader::GetSerializedSize(), operator=(), ns3::dot11s::PeerLinkOpenStart::Serialize(), ns3::MgtAssocRequestHeader::Serialize(), ns3::dot11s::PeerLinkConfirmStart::Serialize(), ns3::MgtAssocResponseHeader::Serialize(), ns3::MgtProbeRequestHeader::Serialize(), ns3::MgtProbeResponseHeader::Serialize(), and SupportedRates().

uint8_t ns3::SupportedRates::m_nRates

private

Number of supported rates.

Definition at line 255 of file supported-rates.h.

Referenced by AddBssMembershipSelectorRate(), AddSupportedRate(), ns3::ExtendedSupportedRatesIE::DeserializeInformationField(), DeserializeInformationField(), ns3::ExtendedSupportedRatesIE::GetInformationFieldSize(), GetInformationFieldSize(), GetNRates(), ns3::ExtendedSupportedRatesIE::GetSerializedSize(), IsBasicRate(), IsSupportedRate(), operator=(), ns3::ExtendedSupportedRatesIE::Serialize(), ns3::ExtendedSupportedRatesIE::SerializeInformationField(), SerializeInformationField(), SetBasicRate(), and SupportedRates().

uint8_t ns3::SupportedRates::m_rates[MAX_SUPPORTED_RATES]

private

List of supported bitrate (divided by 500000)

Definition at line 256 of file supported-rates.h.

Referenced by AddBssMembershipSelectorRate(), AddSupportedRate(), ns3::ExtendedSupportedRatesIE::DeserializeInformationField(), DeserializeInformationField(), GetRate(), IsBasicRate(), IsSupportedRate(), operator=(), ns3::ExtendedSupportedRatesIE::SerializeInformationField(), SerializeInformationField(), SetBasicRate(), and SupportedRates().

const uint8_t ns3::SupportedRates::MAX_SUPPORTED_RATES = 32

static

This defines the maximum number of supported rates that a STA is allowed to have.

Currently this number is set for IEEE 802.11b/g and SISO IEE 802.11n stations which need 2 rates each from Clauses 15 and 18, and then 8 from Clause 19.

Definition at line 150 of file supported-rates.h.

Referenced by AddSupportedRate(), ns3::ExtendedSupportedRatesIE::DeserializeInformationField(), operator=(), and SupportedRates().

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

src/wifi/model/supported-rates.h
src/wifi/model/supported-rates.cc

Public Member Functions

Public Attributes

Static Public Attributes

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation