This object implements the MME functionality. More...

#include "epc-mme.h"

Inheritance diagram for ns3::EpcMme:

Collaboration diagram for ns3::EpcMme:

Classes
struct	BearerInfo
	Hold info on an EPS bearer to be activated. More...

struct	EnbInfo
	Hold info on a ENB. More...

struct	UeInfo
	Hold info on a UE. More...

Public Member Functions
	EpcMme ()
	Constructor. More...

virtual	~EpcMme ()
	Destructor. More...

uint8_t	AddBearer (uint64_t imsi, Ptr< EpcTft > tft, EpsBearer bearer)
	Add an EPS bearer to the list of bearers to be activated for this UE. More...

void	AddEnb (uint16_t ecgi, Ipv4Address enbS1UAddr, EpcS1apSapEnb *enbS1apSap)
	Add a new ENB to the MME. More...

void	AddUe (uint64_t imsi)
	Add a new UE to the MME. More...

EpcS11SapMme *	GetS11SapMme ()

EpcS1apSapMme *	GetS1apSapMme ()

void	SetS11SapSgw (EpcS11SapSgw *s)
	Set the SGW side of the S11 SAP. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

virtual	~Object ()
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose (void)
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator (void) const
	Get an iterator to the Objects aggregated to this one. More...

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

template<typename T >
Ptr< T >	GetObject (void) const
	Get a pointer to the requested aggregated Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId. More...

void	Initialize (void)
	Invoke DoInitialize on all Objects aggregated to this one. More...

bool	IsInitialized (void) const
	Check if the object has been initialized. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	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 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::Object
static TypeId	GetTypeId (void)
	Register this type. More...

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

Protected Member Functions
virtual void	DoDispose ()
	Destructor implementation. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoInitialize (void)
	Initialize() implementation. More...

virtual void	NotifyNewAggregate (void)
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

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...

Private Member Functions
void	DoCreateSessionResponse (EpcS11SapMme::CreateSessionResponseMessage msg)
	Create Session Response function. More...

void	DoDeleteBearerRequest (EpcS11SapMme::DeleteBearerRequestMessage msg)
	Delete Bearer Request function. More...

void	DoErabReleaseIndication (uint64_t mmeUeS1Id, uint16_t enbUeS1Id, std::list< EpcS1apSapMme::ErabToBeReleasedIndication > erabToBeReleaseIndication)
	ERAB Release Indication function. More...

void	DoInitialContextSetupResponse (uint64_t mmeUeS1Id, uint16_t enbUeS1Id, std::list< EpcS1apSapMme::ErabSetupItem > erabSetupList)
	Initial Context Setup Response function. More...

void	DoInitialUeMessage (uint64_t mmeUeS1Id, uint16_t enbUeS1Id, uint64_t imsi, uint16_t ecgi)
	Initial UE Message function. More...

void	DoModifyBearerResponse (EpcS11SapMme::ModifyBearerResponseMessage msg)
	Modify Bearer Response function. More...

void	DoPathSwitchRequest (uint64_t enbUeS1Id, uint64_t mmeUeS1Id, uint16_t cgi, std::list< EpcS1apSapMme::ErabSwitchedInDownlinkItem > erabToBeSwitchedInDownlinkList)
	Path Switch Request function. More...

void	RemoveBearer (Ptr< UeInfo > ueInfo, uint8_t epsBearerId)
	This Function erases all contexts of bearer from MME side. More...

Private Attributes
std::map< uint16_t, Ptr< EnbInfo > >	m_enbInfoMap
	EnbInfo stored by EGCI. More...

EpcS11SapMme *	m_s11SapMme
	EpcS11SapMme. More...

EpcS11SapSgw *	m_s11SapSgw
	EpcS11SapSgw. More...

EpcS1apSapMme *	m_s1apSapMme
	EpcS1apSapMme. More...

std::map< uint64_t, Ptr< UeInfo > >	m_ueInfoMap
	UeInfo stored by IMSI. More...

Friends
class	MemberEpcS11SapMme< EpcMme >
	allow MemberEpcS11SapMme<EpcMme> class friend access More...

class	MemberEpcS1apSapMme< EpcMme >
	allow MemberEpcS1apSapMme<EpcMme> class friend access More...

Additional Inherited Members
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 object implements the MME functionality.

Introspection did not find any typical Config paths.

No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 152 bytes (on a 64-bit architecture).

Definition at line 40 of file epc-mme.h.

Constructor & Destructor Documentation

ns3::EpcMme::EpcMme ( )

Constructor.

Definition at line 35 of file epc-mme.cc.

References m_s11SapMme, m_s1apSapMme, and NS_LOG_FUNCTION.

ns3::EpcMme::~EpcMme ( )

virtual

Destructor.

Definition at line 44 of file epc-mme.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

uint8_t ns3::EpcMme::AddBearer	(	uint64_t	imsi,
		Ptr< EpcTft >	tft,
		EpsBearer	bearer
	)

Add an EPS bearer to the list of bearers to be activated for this UE.

The bearer will be activated when the UE enters the ECM connected state.

Parameters

imsi	UE identifier
tft	traffic flow template of the bearer
bearer	QoS characteristics of the bearer

Returns: bearer ID

Definition at line 109 of file epc-mme.cc.

References ns3::EpcMme::BearerInfo::bearer, ns3::EpcMme::BearerInfo::bearerId, m_ueInfoMap, NS_ASSERT_MSG, NS_LOG_FUNCTION, and ns3::EpcMme::BearerInfo::tft.

void ns3::EpcMme::AddEnb	(	uint16_t	ecgi,
		Ipv4Address	enbS1UAddr,
		EpcS1apSapEnb *	enbS1apSap
	)

Add a new ENB to the MME.

Parameters

ecgi	E-UTRAN Cell Global ID, the unique identifier of the eNodeB
enbS1UAddr	address of the eNB for S1-U communications
enbS1apSap	the ENB side of the S1-AP SAP

Definition at line 87 of file epc-mme.cc.

References ns3::EpcMme::EnbInfo::gci, m_enbInfoMap, NS_LOG_FUNCTION, ns3::EpcMme::EnbInfo::s1apSapEnb, and ns3::EpcMme::EnbInfo::s1uAddr.

void ns3::EpcMme::AddUe ( uint64_t imsi )

Add a new UE to the MME.

This is the equivalent of storing the UE credentials before the UE is ever turned on.

Parameters

imsi	the unique identifier of the UE

Definition at line 98 of file epc-mme.cc.

References ns3::EpcMme::UeInfo::bearerCounter, ns3::EpcMme::UeInfo::imsi, m_ueInfoMap, ns3::EpcMme::UeInfo::mmeUeS1Id, and NS_LOG_FUNCTION.

void ns3::EpcMme::DoCreateSessionResponse ( EpcS11SapMme::CreateSessionResponseMessage msg )

private

Create Session Response function.

Parameters

msg	EpcS11SapMme::CreateSessionResponseMessage

Definition at line 180 of file epc-mme.cc.

References ns3::EpcS11SapMme::CreateSessionResponseMessage::bearerContextsCreated, ns3::EpcS1apSapEnb::ErabToBeSetupItem::erabId, ns3::EpcS1apSapEnb::ErabToBeSetupItem::erabLevelQosParameters, m_enbInfoMap, m_ueInfoMap, NS_ASSERT_MSG, NS_LOG_FUNCTION, ns3::EpcS1apSapEnb::ErabToBeSetupItem::sgwTeid, ns3::EpcS11Sap::GtpcMessage::teid, and ns3::EpcS1apSapEnb::ErabToBeSetupItem::transportLayerAddress.

void ns3::EpcMme::DoDeleteBearerRequest ( EpcS11SapMme::DeleteBearerRequestMessage msg )

private

Delete Bearer Request function.

Parameters

msg	EpcS11SapMme::DeleteBearerRequestMessage

Definition at line 247 of file epc-mme.cc.

References ns3::EpcS11SapMme::DeleteBearerRequestMessage::bearerContextsRemoved, ns3::EpcS11SapSgw::DeleteBearerResponse(), ns3::EpcS11SapSgw::BearerContextRemovedSgwPgw::epsBearerId, m_s11SapSgw, m_ueInfoMap, NS_ASSERT_MSG, NS_LOG_FUNCTION, and RemoveBearer().

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void ns3::EpcMme::DoDispose ( void )

protectedvirtual

Destructor implementation.

This method is called by Dispose() or by the Object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overriden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.

It is safe to call GetObject() from within this method.

Reimplemented from ns3::Object.

Definition at line 50 of file epc-mme.cc.

References m_s11SapMme, m_s1apSapMme, and NS_LOG_FUNCTION.

void ns3::EpcMme::DoErabReleaseIndication	(	uint64_t	mmeUeS1Id,
		uint16_t	enbUeS1Id,
		std::list< EpcS1apSapMme::ErabToBeReleasedIndication >	erabToBeReleaseIndication
	)

private

ERAB Release Indication function.

Parameters

mmeUeS1Id	the MME UE S1 ID
enbUeS1Id	the ENB UE S1 ID
erabToBeReleaseIndication	the ERAB to be release indication list

Definition at line 225 of file epc-mme.cc.

References ns3::EpcS11SapSgw::DeleteBearerCommand(), ns3::EpcS11SapSgw::BearerContextToBeRemoved::epsBearerId, m_s11SapSgw, m_ueInfoMap, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

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void ns3::EpcMme::DoInitialContextSetupResponse	(	uint64_t	mmeUeS1Id,
		uint16_t	enbUeS1Id,
		std::list< EpcS1apSapMme::ErabSetupItem >	erabSetupList
	)

private

Initial Context Setup Response function.

Parameters

mmeUeS1Id	the MME UE S1 ID
enbUeS1Id	the ENB UE S1 ID
erabSetupList	the ERAB setup list

Definition at line 151 of file epc-mme.cc.

References NS_FATAL_ERROR, and NS_LOG_FUNCTION.

void ns3::EpcMme::DoInitialUeMessage	(	uint64_t	mmeUeS1Id,
		uint16_t	enbUeS1Id,
		uint64_t	imsi,
		uint16_t	ecgi
	)

private

Initial UE Message function.

Parameters

mmeUeS1Id	the MME UE S1 ID
enbUeS1Id	the ENB UE S1 ID
imsi	the IMSI
ecgi	the ECGI

Definition at line 127 of file epc-mme.cc.

References ns3::EpcS11SapSgw::CreateSessionRequestMessage::bearerContextsToBeCreated, ns3::EpcS11SapSgw::BearerContextToBeCreated::bearerLevelQos, ns3::EpcS11SapSgw::CreateSessionRequest(), ns3::EpcS11SapSgw::BearerContextToBeCreated::epsBearerId, ns3::EpcS11Sap::Uli::gci, ns3::EpcS11SapSgw::CreateSessionRequestMessage::imsi, m_s11SapSgw, m_ueInfoMap, NS_ASSERT_MSG, NS_LOG_FUNCTION, ns3::EpcS11Sap::GtpcMessage::teid, ns3::EpcS11SapSgw::BearerContextToBeCreated::tft, and ns3::EpcS11SapSgw::CreateSessionRequestMessage::uli.

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void ns3::EpcMme::DoModifyBearerResponse ( EpcS11SapMme::ModifyBearerResponseMessage msg )

private

Modify Bearer Response function.

Parameters

msg	EpcS11SapMme::ModifyBearerResponseMessage

Definition at line 208 of file epc-mme.cc.

References ns3::EpcS11SapMme::ModifyBearerResponseMessage::cause, m_enbInfoMap, m_ueInfoMap, NS_ASSERT, NS_ASSERT_MSG, NS_LOG_FUNCTION, and ns3::EpcS11SapMme::ModifyBearerResponseMessage::REQUEST_ACCEPTED.

void ns3::EpcMme::DoPathSwitchRequest	(	uint64_t	enbUeS1Id,
		uint64_t	mmeUeS1Id,
		uint16_t	cgi,
		std::list< EpcS1apSapMme::ErabSwitchedInDownlinkItem >	erabToBeSwitchedInDownlinkList
	)