This class contains the specification of EPS Bearers. More...

#include "eps-bearer.h"

Inheritance diagram for ns3::EpsBearer:

Collaboration diagram for ns3::EpsBearer:

Classes
struct	QciHash
	Hashing QCI. More...

Public Types
enum	Qci : uint8_t { GBR_CONV_VOICE = 1 , GBR_CONV_VIDEO = 2 , GBR_GAMING = 3 , GBR_NON_CONV_VIDEO = 4 , GBR_MC_PUSH_TO_TALK = 65 , GBR_NMC_PUSH_TO_TALK = 66 , GBR_MC_VIDEO = 67 , GBR_V2X = 75 , NGBR_IMS = 5 , NGBR_VIDEO_TCP_OPERATOR = 6 , NGBR_VOICE_VIDEO_GAMING = 7 , NGBR_VIDEO_TCP_PREMIUM = 8 , NGBR_VIDEO_TCP_DEFAULT = 9 , NGBR_MC_DELAY_SIGNAL = 69 , NGBR_MC_DATA = 70 , NGBR_V2X = 79 , NGBR_LOW_LAT_EMBB = 80 , DGBR_DISCRETE_AUT_SMALL = 82 , DGBR_DISCRETE_AUT_LARGE = 83 , DGBR_ITS = 84 , DGBR_ELECTRICITY = 85 }
	QoS Class Indicator. More...

Public Member Functions
	EpsBearer ()
	Default constructor. More...

	EpsBearer (const EpsBearer &o)
	EpsBearer copy constructor. More...

	EpsBearer (Qci x)

	EpsBearer (Qci x, GbrQosInformation y)

virtual	~EpsBearer ()
	Deconstructor. More...

virtual TypeId	GetInstanceTypeId (void) const override
	Get the most derived TypeId for this Object. More...

uint16_t	GetPacketDelayBudgetMs () const

double	GetPacketErrorLossRate () const

uint8_t	GetPriority () const

uint8_t	GetRelease () const
	GetRelease. More...

bool	IsGbr () const

void	SetRelease (uint8_t release)
	SetRelease. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising erros. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Public Attributes
AllocationRetentionPriority	arp
	allocation retention priority More...

GbrQosInformation	gbrQosInfo
	GBR QOS information. More...

enum ns3::EpsBearer::Qci	qci
	Qos class indicator. More...

Private Types
typedef std::unordered_map< Qci, std::tuple< bool, uint8_t, uint16_t, double, uint32_t, uint32_t >, QciHash >	BearerRequirementsMap
	Map between QCI and requirements. More...

Static Private Member Functions
static uint32_t	GetAvgWindow (const BearerRequirementsMap &map, Qci qci)
	Get default averaging window for the selected QCI. More...

static uint32_t	GetMaxDataBurst (const BearerRequirementsMap &map, Qci qci)
	Get maximum data burst for the selected QCI. More...

static uint16_t	GetPacketDelayBudgetMs (const BearerRequirementsMap &map, Qci qci)
	Get packet delay in ms for the selected QCI. More...

static double	GetPacketErrorLossRate (const BearerRequirementsMap &map, Qci qci)
	Get packet error rate for the selected QCI. More...

static uint8_t	GetPriority (const BearerRequirementsMap &map, Qci qci)
	Get priority for the selected QCI. More...

static BearerRequirementsMap *	GetRequirementsRel11 ()
	Retrieve requirements for Rel. More...

static BearerRequirementsMap *	GetRequirementsRel15 ()
	Retrieve requirements for Rel. More...

static uint32_t	IsGbr (const BearerRequirementsMap &map, Qci qci)
	Is the selected QCI GBR? More...

Private Attributes
uint8_t	m_release {30}
	Release (10 or 15) More...

BearerRequirementsMap *	m_requirements
	Requirements pointer per bearer. More...

Additional Inherited Members
Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted (void)
	Notifier called once the ObjectBase is fully constructed. More...

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid (void)
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

This class contains the specification of EPS Bearers.

Introspection did not find any typical Config paths.

See the following references: 3GPP TS 23.203, Section 4.7.2 The EPS bearer 3GPP TS 23.203, Section 4.7.3 Bearer level QoS parameters 3GPP TS 36.413 Section 9.2.1.15 E-RAB Level QoS Parameters

It supports the selection of different specifications depending on the release. To change the release, change the attribute "Release". Please remember that we must expose to all releases the most recent Qci. Asking for Qci parameters for a release in which it has not been created will result in a crash.

For example, if you select Release 11 (or if you don't select anything, as it is the default selection) and then ask for the packet error rate of the NGBR_MC_DELAY_SIGNAL Qci, the program will crash.

Please note that from Release 8 (the latest when the LENA project finished) to Release 11, the bearers ID and requirements are the same. From Release 12, they started to change, and the latest version is now Release 15. However, we do not support intermediate types: in other words, you can select from Release 8 to Release 11, or Release 15. Any other value will result in a program crash.

The release version only affect Bearer definitions. Other part of the LTE module are not affected when changing the Release attribute.

Attributes

Release: Change from 11 to 15 if you need bearer definition as per Release 15. Reference document: TS 23.203. The change does not impact other LTE code than bearers definition.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 11
- Flags: construct write read

No TraceSources are defined for this type.
Size of this type is 72 bytes (on a 64-bit architecture).

Definition at line 91 of file eps-bearer.h.

Member Typedef Documentation

◆ BearerRequirementsMap

typedef std::unordered_map<Qci, std::tuple<bool, uint8_t, uint16_t, double, uint32_t, uint32_t>, QciHash > ns3::EpsBearer::BearerRequirementsMap

private

Map between QCI and requirements.

The tuple is formed by: isGbr, priority, packet delay budget, packet error rate, default maximum data burst, default averaging window (0 when does not apply)

Definition at line 241 of file eps-bearer.h.

Member Enumeration Documentation

◆ Qci

enum ns3::EpsBearer::Qci : uint8_t

QoS Class Indicator.

See 3GPP 23.203 Section 6.1.7.2 for standard values. Updated to Release 15.

Enumerator
GBR_CONV_VOICE	GBR Conversational Voice.
GBR_CONV_VIDEO	GBR Conversational Video (Live streaming)
GBR_GAMING	GBR Real Time Gaming.
GBR_NON_CONV_VIDEO	GBR Non-Conversational Video (Buffered Streaming)
GBR_MC_PUSH_TO_TALK	GBR Mission Critical User Plane Push To Talk voice.
GBR_NMC_PUSH_TO_TALK	GBR Non-Mission-Critical User Plane Push To Talk voice.
GBR_MC_VIDEO	GBR Mission Critical Video User Plane.
GBR_V2X	GBR V2X Messages.
NGBR_IMS	Non-GBR IMS Signalling.
NGBR_VIDEO_TCP_OPERATOR	Non-GBR TCP-based Video (Buffered Streaming, e.g., www, e-mail...)
NGBR_VOICE_VIDEO_GAMING	Non-GBR Voice, Video, Interactive Streaming.
NGBR_VIDEO_TCP_PREMIUM	Non-GBR TCP-based Video (Buffered Streaming, e.g., www, e-mail...)
NGBR_VIDEO_TCP_DEFAULT	Non-GBR TCP-based Video (Buffered Streaming, e.g., www, e-mail...)
NGBR_MC_DELAY_SIGNAL	Non-GBR Mission Critical Delay Sensitive Signalling (e.g., MC-PTT)
NGBR_MC_DATA	Non-GBR Mission Critical Data.
NGBR_V2X	Non-GBR V2X Messages.
NGBR_LOW_LAT_EMBB	Non-GBR Low Latency eMBB applications.
DGBR_DISCRETE_AUT_SMALL	Delay-Critical GBR Discrete Automation Small Packets (TS 22.261)
DGBR_DISCRETE_AUT_LARGE	Delay-Critical GBR Discrete Automation Large Packets (TS 22.261)
DGBR_ITS	Delay-Critical GBR Intelligent Transport Systems (TS 22.261)
DGBR_ELECTRICITY	Delay-Critical GBR Electricity Distribution High Voltage (TS 22.261)

Definition at line 106 of file eps-bearer.h.

Constructor & Destructor Documentation

◆ EpsBearer() [1/4]

ns3::EpsBearer::EpsBearer ( )

Default constructor.

QCI will be initialized to NGBR_VIDEO_TCP_DEFAULT

Definition at line 68 of file eps-bearer.cc.

References ns3::ObjectBase::ConstructSelf().

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◆ EpsBearer() [2/4]

ns3::EpsBearer::EpsBearer ( Qci x )

Parameters

x	the QoS Class Indicator

Definition at line 76 of file eps-bearer.cc.

References ns3::ObjectBase::ConstructSelf().

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◆ EpsBearer() [3/4]

ns3::EpsBearer::EpsBearer	(	Qci	x,
		GbrQosInformation	y
	)

Parameters

x	the QoS Class Indicator
y	the GbrQosInformation

Definition at line 83 of file eps-bearer.cc.

References ns3::ObjectBase::ConstructSelf().

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◆ EpsBearer() [4/4]

ns3::EpsBearer::EpsBearer ( const EpsBearer & o )

EpsBearer copy constructor.

Parameters

o	other instance

Definition at line 90 of file eps-bearer.cc.

References ns3::ObjectBase::ConstructSelf(), gbrQosInfo, and qci.

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◆ ~EpsBearer()

virtual ns3::EpsBearer::~EpsBearer ( )

inlinevirtual

Deconstructor.

Definition at line 164 of file eps-bearer.h.

Member Function Documentation

◆ GetAvgWindow()

static uint32_t ns3::EpsBearer::GetAvgWindow	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Get default averaging window for the selected QCI.

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: default averaging window for the selected QCI

Definition at line 291 of file eps-bearer.h.

References qci.

◆ GetInstanceTypeId()

TypeId ns3::EpsBearer::GetInstanceTypeId ( void ) const

overridevirtual

Get the most derived TypeId for this Object.

This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.

Returns: The TypeId associated to the most-derived type of this instance.

Implements ns3::ObjectBase.

Definition at line 63 of file eps-bearer.cc.

References GetTypeId().

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◆ GetMaxDataBurst()

static uint32_t ns3::EpsBearer::GetMaxDataBurst	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Get maximum data burst for the selected QCI.

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: maximum data burst for the selected QCI

Definition at line 283 of file eps-bearer.h.

References qci.

◆ GetPacketDelayBudgetMs() [1/2]

uint16_t ns3::EpsBearer::GetPacketDelayBudgetMs ( ) const

Returns: the packet delay budget associated with the QCI of this bearer as per 3GPP 23.203 Section 6.1.7.2

Definition at line 131 of file eps-bearer.cc.

References m_requirements, and qci.

◆ GetPacketDelayBudgetMs() [2/2]

static uint16_t ns3::EpsBearer::GetPacketDelayBudgetMs	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Get packet delay in ms for the selected QCI.

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: packet delay in ms for the selected QCI

Definition at line 267 of file eps-bearer.h.

References qci.

◆ GetPacketErrorLossRate() [1/2]

double ns3::EpsBearer::GetPacketErrorLossRate ( ) const

Returns: the packet error loss rate associated with the QCI of this bearer as per 3GPP 23.203 Section 6.1.7.2

Definition at line 137 of file eps-bearer.cc.

References m_requirements, and qci.

Referenced by ns3::LteEnbRrc::GetRlcType().

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◆ GetPacketErrorLossRate() [2/2]

static double ns3::EpsBearer::GetPacketErrorLossRate	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Get packet error rate for the selected QCI.

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: packet error rate for the selected QCI

Definition at line 275 of file eps-bearer.h.

References qci.

◆ GetPriority() [1/2]

uint8_t ns3::EpsBearer::GetPriority ( void ) const

Returns: the priority associated with the QCI of this bearer as per 3GPP 23.203 Section 6.1.7.2

Definition at line 125 of file eps-bearer.cc.

References m_requirements, and qci.

◆ GetPriority() [2/2]

static uint8_t ns3::EpsBearer::GetPriority	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Get priority for the selected QCI.

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: priority for the selected QCI

Definition at line 259 of file eps-bearer.h.

References qci.

◆ GetRelease()

uint8_t ns3::EpsBearer::GetRelease ( ) const

inline

GetRelease.

Returns: The release currently set for this bearer type

Definition at line 184 of file eps-bearer.h.

References m_release.

Referenced by GetTypeId().

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◆ GetRequirementsRel11()

EpsBearer::BearerRequirementsMap * ns3::EpsBearer::GetRequirementsRel11 ( )

staticprivate

Retrieve requirements for Rel.

11

Returns: the BearerRequirementsMap for Release 11

It returns a pointer to a non-const static data. That is not thread-safe, nor safe to do in general. However, a const-correct version would have to initialize two static maps, and then returning either one or the other. But that's a huge memory increase, and EpsBearer is used everywhere.

To be revisited when GCC 4.9 will not be supported anymore.

Definition at line 143 of file eps-bearer.cc.

References GBR_CONV_VIDEO, GBR_CONV_VOICE, GBR_GAMING, GBR_NON_CONV_VIDEO, NGBR_IMS, NGBR_VIDEO_TCP_DEFAULT, NGBR_VIDEO_TCP_OPERATOR, NGBR_VIDEO_TCP_PREMIUM, and NGBR_VOICE_VIDEO_GAMING.

Referenced by SetRelease().

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◆ GetRequirementsRel15()

EpsBearer::BearerRequirementsMap * ns3::EpsBearer::GetRequirementsRel15 ( )

staticprivate

Retrieve requirements for Rel.

15

Returns: the BearerRequirementsMap for Release 15

It returns a pointer to a non-const static data. That is not thread-safe, nor safe to do in general. However, a const-correct version would have to initialize two static maps, and then returning either one or the other. But that's a huge memory increase, and EpsBearer is used everywhere.

To be revisited when GCC 4.9 will not be supported anymore.

Definition at line 174 of file eps-bearer.cc.

References DGBR_DISCRETE_AUT_LARGE, DGBR_DISCRETE_AUT_SMALL, DGBR_ELECTRICITY, DGBR_ITS, GBR_CONV_VIDEO, GBR_CONV_VOICE, GBR_GAMING, GBR_MC_PUSH_TO_TALK, GBR_MC_VIDEO, GBR_NMC_PUSH_TO_TALK, GBR_NON_CONV_VIDEO, GBR_V2X, NGBR_IMS, NGBR_LOW_LAT_EMBB, NGBR_MC_DATA, NGBR_MC_DELAY_SIGNAL, NGBR_V2X, NGBR_VIDEO_TCP_DEFAULT, NGBR_VIDEO_TCP_OPERATOR, NGBR_VIDEO_TCP_PREMIUM, and NGBR_VOICE_VIDEO_GAMING.

Referenced by SetRelease().

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◆ GetTypeId()

TypeId ns3::EpsBearer::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 45 of file eps-bearer.cc.

References GetRelease(), ns3::MakeUintegerAccessor(), ns3::TypeId::SetParent(), and SetRelease().

Referenced by GetInstanceTypeId().

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◆ IsGbr() [1/2]

bool ns3::EpsBearer::IsGbr ( ) const

Returns: true if the EPS Bearer is a Guaranteed Bit Rate bearer, false otherwise

Definition at line 119 of file eps-bearer.cc.

References m_requirements, and qci.

Referenced by ns3::NoOpComponentCarrierManager::DoSetupDataRadioBearer(), ns3::LteEnbRrc::GetLogicalChannelGroup(), and ns3::UeManager::SetupDataRadioBearer().

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◆ IsGbr() [2/2]

static uint32_t ns3::EpsBearer::IsGbr	(	const BearerRequirementsMap &	map,
		Qci	qci
	)

inlinestaticprivate

Is the selected QCI GBR?

Parameters

map	Map between QCI and requirements
qci	QCI to look for

Returns: GBR flag for the selected CQI

Definition at line 250 of file eps-bearer.h.

References qci.

◆ SetRelease()

void ns3::EpsBearer::SetRelease ( uint8_t release )

SetRelease.

Parameters

release The release the user want for this bearer

Releases introduces new types, and change values for existing ones. While we can't do much for the added type (we must expose them even if the user want to work with older releases) by calling this method we can, at least, select the specific parameters value the bearer returns.

For instance, if the user select release 10 (the default) the priority of CONV_VIDEO will be 2. With release 15, such priority will be 20.

Definition at line 98 of file eps-bearer.cc.

References GetRequirementsRel11(), GetRequirementsRel15(), m_release, m_requirements, NS_FATAL_ERROR, and ns3::release.

Referenced by GetTypeId().

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Member Data Documentation

◆ arp

AllocationRetentionPriority ns3::EpsBearer::arp

allocation retention priority

Definition at line 132 of file eps-bearer.h.

Referenced by ns3::EpcX2HandoverRequestHeader::Deserialize(), and ns3::LenaDeactivateBearerTestCase::DoRun().

◆ gbrQosInfo

GbrQosInformation ns3::EpsBearer::gbrQosInfo

GBR QOS information.

Definition at line 131 of file eps-bearer.h.

Referenced by EpsBearer(), ns3::EpcX2HandoverRequestHeader::Deserialize(), ns3::GtpcIes::DeserializeBearerQos(), ns3::NoOpComponentCarrierManager::DoSetupDataRadioBearer(), ns3::GtpcIes::SerializeBearerQos(), and ns3::UeManager::SetupDataRadioBearer().

◆ m_release

uint8_t ns3::EpsBearer::m_release {30}

private

Release (10 or 15)

Definition at line 326 of file eps-bearer.h.

Referenced by GetRelease(), and SetRelease().

◆ m_requirements

BearerRequirementsMap* ns3::EpsBearer::m_requirements

private

Requirements pointer per bearer.

It will point to a static map.

Definition at line 324 of file eps-bearer.h.

Referenced by GetPacketDelayBudgetMs(), GetPacketErrorLossRate(), GetPriority(), IsGbr(), and SetRelease().

◆ qci

enum ns3::EpsBearer::Qci ns3::EpsBearer::qci

Qos class indicator.

Referenced by EpsBearer(), ns3::GtpcIes::DeserializeBearerQos(), ns3::NoOpComponentCarrierManager::DoSetupDataRadioBearer(), GetAvgWindow(), ns3::LteEnbRrc::GetLogicalChannelPriority(), GetMaxDataBurst(), GetPacketDelayBudgetMs(), GetPacketErrorLossRate(), GetPriority(), IsGbr(), and ns3::GtpcIes::SerializeBearerQos().

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

src/lte/model/eps-bearer.h
src/lte/model/eps-bearer.cc

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Private Types

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Attributes

Member Typedef Documentation

◆ BearerRequirementsMap

Member Enumeration Documentation

◆ Qci

Constructor & Destructor Documentation

◆ EpsBearer() [1/4]

◆ EpsBearer() [2/4]

◆ EpsBearer() [3/4]

◆ EpsBearer() [4/4]

◆ ~EpsBearer()

Member Function Documentation

◆ GetAvgWindow()

◆ GetInstanceTypeId()

◆ GetMaxDataBurst()

◆ GetPacketDelayBudgetMs() [1/2]

◆ GetPacketDelayBudgetMs() [2/2]

◆ GetPacketErrorLossRate() [1/2]

◆ GetPacketErrorLossRate() [2/2]

◆ GetPriority() [1/2]

◆ GetPriority() [2/2]

◆ GetRelease()

◆ GetRequirementsRel11()

◆ GetRequirementsRel15()

◆ GetTypeId()

◆ IsGbr() [1/2]

◆ IsGbr() [2/2]

◆ SetRelease()

Member Data Documentation

◆ arp

◆ gbrQosInfo

◆ m_release

◆ m_requirements

◆ qci