This application is installed inside eNBs and provides the bridge functionality for user data plane packets between the radio interface and the S1-U interface. More...

#include <epc-enb-application.h>

Inheritance diagram for ns3::EpcEnbApplication:

Collaboration diagram for ns3::EpcEnbApplication:

Classes
struct	EpsFlowId_t

Public Member Functions
	EpcEnbApplication (Ptr< Socket > lteSocket, Ptr< Socket > s1uSocket, Ipv4Address enbS1uAddress, Ipv4Address sgwS1uAddress, uint16_t cellId)
	Constructor. More...

virtual	~EpcEnbApplication (void)
	Destructor. More...

EpcS1apSapEnb *	GetS1apSapEnb ()

EpcEnbS1SapProvider *	GetS1SapProvider ()

void	RecvFromLteSocket (Ptr< Socket > socket)
	Method to be assigned to the recv callback of the LTE socket. More...

void	RecvFromS1uSocket (Ptr< Socket > socket)
	Method to be assigned to the recv callback of the S1-U socket. More...

void	SetS1apSapMme (EpcS1apSapMme *s)
	Set the MME side of the S1-AP SAP. More...

void	SetS1SapUser (EpcEnbS1SapUser *s)
	Set the S1 SAP User. More...

Public Member Functions inherited from ns3::Application
	Application ()

virtual	~Application ()

Ptr< Node >	GetNode () const

void	SetNode (Ptr< Node > node)

void	SetStartTime (Time start)
	Specify application start time. More...

void	SetStopTime (Time stop)
	Specify application stop time. More...

Public Member Functions inherited from ns3::Object
	Object ()

virtual	~Object ()

void	AggregateObject (Ptr< Object > other)

void	Dispose (void)
	Run the DoDispose methods of this object and all the objects aggregated to it. More...

AggregateIterator	GetAggregateIterator (void) const

virtual TypeId	GetInstanceTypeId (void) const

template<typename T >
Ptr< T >	GetObject (void) const

template<typename T >
Ptr< T >	GetObject (TypeId tid) const

void	Initialize (void)
	This method calls the virtual DoInitialize method on all the objects aggregated to this object. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	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. 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

bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const

void	SetAttribute (std::string name, const AttributeValue &value)

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions
static TypeId	GetTypeId (void)

Static Public Member Functions inherited from ns3::Application
static TypeId	GetTypeId (void)

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)
	Noop. More...

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

Protected Member Functions
void	DoDispose (void)
	This method is called by Object::Dispose or by the object's destructor, whichever comes first. More...

Protected Member Functions inherited from ns3::Application
virtual void	DoInitialize (void)
	This method is called only once by Object::Initialize. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)

virtual void	NotifyNewAggregate (void)
	This method is invoked whenever two sets of objects are aggregated together. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)
	This method is invoked once all member attributes have been initialized. More...

Private Member Functions
void	DoInitialContextSetupRequest (uint64_t mmeUeS1Id, uint16_t enbUeS1Id, std::list< EpcS1apSapEnb::ErabToBeSetupItem > erabToBeSetupList)

void	DoInitialUeMessage (uint64_t imsi, uint16_t rnti)

void	DoPathSwitchRequest (EpcEnbS1SapProvider::PathSwitchRequestParameters params)

void	DoPathSwitchRequestAcknowledge (uint64_t enbUeS1Id, uint64_t mmeUeS1Id, uint16_t cgi, std::list< EpcS1apSapEnb::ErabSwitchedInUplinkItem > erabToBeSwitchedInUplinkList)

void	DoUeContextRelease (uint16_t rnti)

void	SendToLteSocket (Ptr< Packet > packet, uint16_t rnti, uint8_t bid)
	Send a packet to the UE via the LTE radio interface of the eNB. More...

void	SendToS1uSocket (Ptr< Packet > packet, uint32_t teid)
	Send a packet to the SGW via the S1-U interface. More...

void	SetupS1Bearer (uint32_t teid, uint16_t rnti, uint8_t bid)
	internal method used for the actual setup of the S1 Bearer More...

Private Attributes
uint16_t	m_cellId

Ipv4Address	m_enbS1uAddress
	address of the eNB for S1-U communications More...

uint16_t	m_gtpuUdpPort
	UDP port to be used for GTP. More...

std::map< uint64_t, uint16_t >	m_imsiRntiMap
	UE context info. More...

Ptr< Socket >	m_lteSocket
	raw packet socket to send and receive the packets to and from the LTE radio interface More...

std::map< uint16_t, std::map < uint8_t, uint32_t > >	m_rbidTeidMap
	map of maps telling for each RNTI and BID the corresponding S1-U TEID More...

EpcS1apSapEnb *	m_s1apSapEnb
	ENB side of the S1-AP SAP. More...

EpcS1apSapMme *	m_s1apSapMme
	MME side of the S1-AP SAP. More...

EpcEnbS1SapProvider *	m_s1SapProvider
	Provider for the S1 SAP. More...

EpcEnbS1SapUser *	m_s1SapUser
	User for the S1 SAP. More...

Ptr< Socket >	m_s1uSocket
	UDP socket to send and receive GTP-U the packets to and from the S1-U interface. More...

Ipv4Address	m_sgwS1uAddress
	address of the SGW which terminates all S1-U tunnels More...

std::map< uint32_t, EpsFlowId_t >	m_teidRbidMap
	map telling for each S1-U TEID the corresponding RNTI,BID More...

Friends
class	MemberEpcEnbS1SapProvider< EpcEnbApplication >

class	MemberEpcS1apSapEnb< EpcEnbApplication >

Additional Inherited Members
Protected Attributes inherited from ns3::Application
Ptr< Node >	m_node

EventId	m_startEvent
	The simulation time that the appliacation will end. More...

Time	m_startTime
	The node that this application is installed on. More...

EventId	m_stopEvent
	The event that will fire at m_startTime to start the application. More...

Time	m_stopTime
	The simulation time that the appliacation will start. More...

Detailed Description

This application is installed inside eNBs and provides the bridge functionality for user data plane packets between the radio interface and the S1-U interface.

Definition at line 49 of file epc-enb-application.h.

Constructor & Destructor Documentation

ns3::EpcEnbApplication::EpcEnbApplication	(	Ptr< Socket >	lteSocket,
		Ptr< Socket >	s1uSocket,
		Ipv4Address	enbS1uAddress,
		Ipv4Address	sgwS1uAddress,
		uint16_t	cellId
	)

Constructor.

Parameters

lteSocket	the socket to be used to send/receive packets to/from the LTE radio interface
s1uSocket	the socket to be used to send/receive packets to/from the S1-U interface connected with the SGW
enbS1uAddress	the IPv4 address of the S1-U interface of this eNB
sgwS1uAddress	the IPv4 address at which this eNB will be able to reach its SGW for S1-U communications
cellId	the identifier of the enb

Definition at line 82 of file epc-enb-application.cc.

References m_lteSocket, m_s1apSapEnb, m_s1SapProvider, m_s1uSocket, ns3::MakeCallback(), NS_LOG_FUNCTION, RecvFromLteSocket(), RecvFromS1uSocket(), and ns3::Socket::SetRecvCallback().

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ns3::EpcEnbApplication::~EpcEnbApplication ( void )

virtual

Destructor.

Definition at line 100 of file epc-enb-application.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

void ns3::EpcEnbApplication::DoDispose ( void )

protectedvirtual

This method is called by Object::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::Application.

Definition at line 72 of file epc-enb-application.cc.

References m_lteSocket, m_s1apSapEnb, m_s1SapProvider, m_s1uSocket, and NS_LOG_FUNCTION.

void ns3::EpcEnbApplication::DoInitialContextSetupRequest	(	uint64_t	mmeUeS1Id,
		uint16_t	enbUeS1Id,
		std::list< EpcS1apSapEnb::ErabToBeSetupItem >	erabToBeSetupList
	)

private

Definition at line 196 of file epc-enb-application.cc.

References ns3::EpcEnbS1SapUser::DataRadioBearerSetupRequestParameters::bearer, ns3::EpcEnbS1SapUser::DataRadioBearerSetupRequestParameters::bearerId, ns3::EpcEnbS1SapUser::DataRadioBearerSetupRequest(), ns3::EpcEnbS1SapUser::DataRadioBearerSetupRequestParameters::gtpTeid, m_imsiRntiMap, m_rbidTeidMap, m_s1SapUser, m_teidRbidMap, NS_ASSERT_MSG, NS_LOG_FUNCTION, and ns3::EpcEnbS1SapUser::DataRadioBearerSetupRequestParameters::rnti.

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void ns3::EpcEnbApplication::DoInitialUeMessage	(	uint64_t	imsi,
		uint16_t	rnti
	)

private

Definition at line 133 of file epc-enb-application.cc.

References ns3::EpcS1apSapMme::InitialUeMessage(), m_cellId, m_imsiRntiMap, m_s1apSapMme, and NS_LOG_FUNCTION.

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void ns3::EpcEnbApplication::DoPathSwitchRequest ( EpcEnbS1SapProvider::PathSwitchRequestParameters params )

private

Definition at line 142 of file epc-enb-application.cc.

References ns3::EpcEnbS1SapProvider::PathSwitchRequestParameters::bearersToBeSwitched, ns3::EpcEnbS1SapProvider::PathSwitchRequestParameters::cellId, ns3::EpcS1apSapMme::ErabSwitchedInDownlinkItem::enbTeid, ns3::EpcS1apSapMme::ErabSwitchedInDownlinkItem::enbTransportLayerAddress, ns3::EpcS1apSapMme::ErabSwitchedInDownlinkItem::erabId, ns3::EpcEnbApplication::EpsFlowId_t::m_bid, m_enbS1uAddress, m_imsiRntiMap, m_rbidTeidMap, ns3::EpcEnbApplication::EpsFlowId_t::m_rnti, m_s1apSapMme, m_teidRbidMap, ns3::EpcEnbS1SapProvider::PathSwitchRequestParameters::mmeUeS1Id, NS_LOG_FUNCTION, ns3::EpcS1apSapMme::PathSwitchRequest(), and ns3::EpcEnbS1SapProvider::PathSwitchRequestParameters::rnti.

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void ns3::EpcEnbApplication::DoPathSwitchRequestAcknowledge	(	uint64_t	enbUeS1Id,
		uint64_t	mmeUeS1Id,
		uint16_t	cgi,
		std::list< EpcS1apSapEnb::ErabSwitchedInUplinkItem >	erabToBeSwitchedInUplinkList
	)

private

Definition at line 227 of file epc-enb-application.cc.

References m_imsiRntiMap, m_s1SapUser, NS_ASSERT_MSG, NS_LOG_FUNCTION, ns3::EpcEnbS1SapUser::PathSwitchRequestAcknowledge(), and ns3::EpcEnbS1SapUser::PathSwitchRequestAcknowledgeParameters::rnti.

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void ns3::EpcEnbApplication::DoUeContextRelease ( uint16_t rnti )

private

Definition at line 178 of file epc-enb-application.cc.

References m_rbidTeidMap, m_teidRbidMap, and NS_LOG_FUNCTION.

EpcS1apSapEnb * ns3::EpcEnbApplication::GetS1apSapEnb ( )

Returns: the ENB side of the S1-AP SAP

Definition at line 127 of file epc-enb-application.cc.

References m_s1apSapEnb.

EpcEnbS1SapProvider * ns3::EpcEnbApplication::GetS1SapProvider ( )

Returns: the S1 SAP Provider

Definition at line 114 of file epc-enb-application.cc.

References m_s1SapProvider.

TypeId ns3::EpcEnbApplication::GetTypeId ( void )

static

Definition at line 64 of file epc-enb-application.cc.

References ns3::TypeId::SetParent().

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void ns3::EpcEnbApplication::RecvFromLteSocket ( Ptr< Socket > socket )

Method to be assigned to the recv callback of the LTE socket.

It is called when the eNB receives a data packet from the radio interface that is to be forwarded to the SGW.

Parameters

socket pointer to the LTE socket

Internal:: Workaround for Bug 231

Definition at line 241 of file epc-enb-application.cc.

References ns3::EpsBearerTag::GetBid(), ns3::EpsBearerTag::GetRnti(), m_lteSocket, m_rbidTeidMap, NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_LOGIC, NS_LOG_WARN, ns3::Socket::Recv(), ns3::Packet::RemovePacketTag(), and SendToS1uSocket().

Referenced by EpcEnbApplication().

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void ns3::EpcEnbApplication::RecvFromS1uSocket ( Ptr< Socket > socket )

Method to be assigned to the recv callback of the S1-U socket.

It is called when the eNB receives a data packet from the SGW that is to be forwarded to the UE.

Parameters

socket pointer to the S1-U socket

Internal:: Workaround for Bug 231

Definition at line 273 of file epc-enb-application.cc.

References ns3::GtpuHeader::GetTeid(), m_s1uSocket, m_teidRbidMap, NS_ASSERT, NS_LOG_FUNCTION, ns3::Socket::Recv(), ns3::Packet::RemoveHeader(), ns3::Packet::RemovePacketTag(), and SendToLteSocket().

Referenced by EpcEnbApplication().

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void ns3::EpcEnbApplication::SendToLteSocket	(	Ptr< Packet >	packet,
		uint16_t	rnti,
		uint8_t	bid
	)

private

Send a packet to the UE via the LTE radio interface of the eNB.

Parameters

packet	t
bid	the EPS Bearer IDentifier

Definition at line 293 of file epc-enb-application.cc.

References ns3::Packet::AddPacketTag(), ns3::Packet::GetSize(), m_lteSocket, NS_ASSERT, NS_LOG_FUNCTION, and ns3::Socket::Send().

Referenced by RecvFromS1uSocket().

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void ns3::EpcEnbApplication::SendToS1uSocket	(	Ptr< Packet >	packet,
		uint32_t	teid
	)

private

Send a packet to the SGW via the S1-U interface.

Parameters

packet	packet to be sent
teid	the Tunnel Enpoint IDentifier

Definition at line 304 of file epc-enb-application.cc.

References ns3::Packet::AddHeader(), ns3::Packet::GetSize(), m_gtpuUdpPort, m_s1uSocket, m_sgwS1uAddress, NS_LOG_FUNCTION, ns3::Socket::SendTo(), and ns3::GtpuHeader::SetTeid().

Referenced by RecvFromLteSocket().

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void ns3::EpcEnbApplication::SetS1apSapMme ( EpcS1apSapMme * s )

Set the MME side of the S1-AP SAP.

Parameters

s	the MME side of the S1-AP SAP

Definition at line 120 of file epc-enb-application.cc.

References m_s1apSapMme, and s.

void ns3::EpcEnbApplication::SetS1SapUser ( EpcEnbS1SapUser * s )

Set the S1 SAP User.

Parameters

s	the S1 SAP User

Definition at line 107 of file epc-enb-application.cc.

References m_s1SapUser, and s.

void ns3::EpcEnbApplication::SetupS1Bearer	(	uint32_t	teid,
		uint16_t	rnti,
		uint8_t	bid
	)

private

internal method used for the actual setup of the S1 Bearer

Parameters

teid
rnti
bid

Friends And Related Function Documentation

friend class MemberEpcEnbS1SapProvider< EpcEnbApplication >

friend

Definition at line 52 of file epc-enb-application.h.

friend class MemberEpcS1apSapEnb< EpcEnbApplication >

friend

Definition at line 53 of file epc-enb-application.h.

Member Data Documentation

uint16_t ns3::EpcEnbApplication::m_cellId

private

Definition at line 245 of file epc-enb-application.h.

Referenced by DoInitialUeMessage().

Ipv4Address ns3::EpcEnbApplication::m_enbS1uAddress

private

address of the eNB for S1-U communications

Definition at line 193 of file epc-enb-application.h.

Referenced by DoPathSwitchRequest().

uint16_t ns3::EpcEnbApplication::m_gtpuUdpPort

private

UDP port to be used for GTP.

Definition at line 215 of file epc-enb-application.h.

Referenced by SendToS1uSocket().

std::map<uint64_t, uint16_t> ns3::EpcEnbApplication::m_imsiRntiMap

private

UE context info.

Definition at line 243 of file epc-enb-application.h.

Referenced by DoInitialContextSetupRequest(), DoInitialUeMessage(), DoPathSwitchRequest(), and DoPathSwitchRequestAcknowledge().

Ptr<Socket> ns3::EpcEnbApplication::m_lteSocket

private

raw packet socket to send and receive the packets to and from the LTE radio interface

Definition at line 183 of file epc-enb-application.h.

Referenced by DoDispose(), EpcEnbApplication(), RecvFromLteSocket(), and SendToLteSocket().

std::map<uint16_t, std::map<uint8_t, uint32_t> > ns3::EpcEnbApplication::m_rbidTeidMap

private

map of maps telling for each RNTI and BID the corresponding S1-U TEID

Definition at line 204 of file epc-enb-application.h.

Referenced by DoInitialContextSetupRequest(), DoPathSwitchRequest(), DoUeContextRelease(), and RecvFromLteSocket().

EpcS1apSapEnb* ns3::EpcEnbApplication::m_s1apSapEnb

private

ENB side of the S1-AP SAP.

Definition at line 237 of file epc-enb-application.h.

Referenced by DoDispose(), EpcEnbApplication(), and GetS1apSapEnb().

EpcS1apSapMme* ns3::EpcEnbApplication::m_s1apSapMme

private

MME side of the S1-AP SAP.

Definition at line 231 of file epc-enb-application.h.

Referenced by DoInitialUeMessage(), DoPathSwitchRequest(), and SetS1apSapMme().

EpcEnbS1SapProvider* ns3::EpcEnbApplication::m_s1SapProvider

private

Provider for the S1 SAP.

Definition at line 220 of file epc-enb-application.h.

Referenced by DoDispose(), EpcEnbApplication(), and GetS1SapProvider().

EpcEnbS1SapUser* ns3::EpcEnbApplication::m_s1SapUser

private

User for the S1 SAP.

Definition at line 225 of file epc-enb-application.h.

Referenced by DoInitialContextSetupRequest(), DoPathSwitchRequestAcknowledge(), and SetS1SapUser().

Ptr<Socket> ns3::EpcEnbApplication::m_s1uSocket

private

UDP socket to send and receive GTP-U the packets to and from the S1-U interface.

Definition at line 188 of file epc-enb-application.h.

Referenced by DoDispose(), EpcEnbApplication(), RecvFromS1uSocket(), and SendToS1uSocket().

Ipv4Address ns3::EpcEnbApplication::m_sgwS1uAddress

private

address of the SGW which terminates all S1-U tunnels

Definition at line 198 of file epc-enb-application.h.

Referenced by SendToS1uSocket().

std::map<uint32_t, EpsFlowId_t> ns3::EpcEnbApplication::m_teidRbidMap

private

map telling for each S1-U TEID the corresponding RNTI,BID

Definition at line 210 of file epc-enb-application.h.

Referenced by DoInitialContextSetupRequest(), DoPathSwitchRequest(), DoUeContextRelease(), and RecvFromS1uSocket().

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

src/lte/model/epc-enb-application.h
src/lte/model/epc-enb-application.cc

Classes

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation