#include "epc-ue-nas.h"

Inheritance diagram for ns3::EpcUeNas:

Collaboration diagram for ns3::EpcUeNas:

Classes
struct	BearerToBeActivated
	BearerToBeActivated structure. More...

Public Types
enum	State { OFF = 0 , ATTACHING , IDLE_REGISTERED , CONNECTING_TO_EPC , ACTIVE , NUM_STATES }
	Definition of NAS states as per "LTE - From theory to practice", Section 3.2.3.2 "Connection Establishment and Release". More...

typedef void(*	StateTracedCallback) (const State oldState, const State newState)
	TracedCallback signature for state change events.

Public Member Functions
	EpcUeNas ()
	Constructor.

	~EpcUeNas () override
	Destructor.

void	ActivateEpsBearer (EpsBearer bearer, Ptr< EpcTft > tft)
	Activate an EPS bearer.

void	Connect ()
	Causes NAS to tell AS to go to ACTIVE state.

void	Connect (uint16_t cellId, uint32_t dlEarfcn)
	Causes NAS to tell AS to camp to a specific cell and go to ACTIVE state.

void	Disconnect ()
	instruct the NAS to disconnect

void	DoDispose () override
	Destructor implementation.

LteAsSapUser *	GetAsSapUser ()

uint32_t	GetCsgId () const

State	GetState () const

bool	Send (Ptr< Packet > p, uint16_t protocolNumber)
	Enqueue an IP packet on the proper bearer for uplink transmission.

void	SetAsSapProvider (LteAsSapProvider *s)
	Set the AS SAP provider to interact with the NAS entity.

void	SetCsgId (uint32_t csgId)

void	SetDevice (Ptr< NetDevice > dev)

void	SetForwardUpCallback (Callback< void, Ptr< Packet > > cb)
	set the callback used to forward data packets up the stack

void	SetImsi (uint64_t imsi)

void	StartCellSelection (uint32_t dlEarfcn)
	Causes NAS to tell AS to find a suitable cell and camp to it.

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

	~Object () override
	Destructor.

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

void	Dispose ()
	Dispose of this Object.

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

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

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

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object.

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

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object.

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

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

void	UnidirectionalAggregateObject (Ptr< Object > other)
	Aggregate an Object to another Object.

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

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

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

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

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

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

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

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

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

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

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

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

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

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

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

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

Private Member Functions
void	DoActivateEpsBearer (EpsBearer bearer, Ptr< EpcTft > tft)
	Activate EPS Bearer.

void	DoNotifyConnectionFailed ()
	Notify connection failed.

void	DoNotifyConnectionReleased ()
	Notify connection released.

void	DoNotifyConnectionSuccessful ()
	Notify successful connection.

void	DoRecvData (Ptr< Packet > packet)
	Receive data.

void	SwitchToState (State s)
	Switch the UE RRC to the given state.

Private Attributes
LteAsSapProvider *	m_asSapProvider
	LTE SAP provider.

LteAsSapUser *	m_asSapUser
	LTE SAP user.

std::list< BearerToBeActivated >	m_bearersToBeActivatedList
	bearers to be activated list

std::list< BearerToBeActivated >	m_bearersToBeActivatedListForReconnection
	bearers to be activated list maintained and to be used for reconnecting an out-of-sync UE

uint8_t	m_bidCounter
	bid counter

uint32_t	m_csgId
	Closed Subscriber Group identity.

Ptr< NetDevice >	m_device
	The UE NetDevice.

Callback< void, Ptr< Packet > >	m_forwardUpCallback
	upward callback

uint64_t	m_imsi
	The unique UE identifier.

State	m_state
	The current UE NAS state.

TracedCallback< State, State >	m_stateTransitionCallback
	The `StateTransition` trace source.

EpcTftClassifier	m_tftClassifier
	tft classifier

Friends
class	MemberLteAsSapUser< EpcUeNas >
	allow MemberLteAsSapUser<EpcUeNas> class friend access

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

virtual void	DoInitialize ()
	Initialize() implementation.

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

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

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

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

Detailed Description

Definition at line 25 of file epc-ue-nas.h.

Member Typedef Documentation

◆ StateTracedCallback

typedef void(* ns3::EpcUeNas::StateTracedCallback) (const State oldState, const State newState)

TracedCallback signature for state change events.

Parameters

[in]	oldState	The old State.
[in]	newState	the new State.

Definition at line 171 of file epc-ue-nas.h.

Member Enumeration Documentation

◆ State

enum ns3::EpcUeNas::State

Definition of NAS states as per "LTE - From theory to practice", Section 3.2.3.2 "Connection Establishment and Release".

Enumerator
OFF
ATTACHING
IDLE_REGISTERED
CONNECTING_TO_EPC
ACTIVE
NUM_STATES

Definition at line 150 of file epc-ue-nas.h.

Constructor & Destructor Documentation

◆ EpcUeNas()

ns3::EpcUeNas::EpcUeNas ( )

Constructor.

Definition at line 44 of file epc-ue-nas.cc.

References m_asSapUser, MemberLteAsSapUser< EpcUeNas >, and NS_LOG_FUNCTION.

◆ ~EpcUeNas()

ns3::EpcUeNas::~EpcUeNas ( )

override

Destructor.

Definition at line 54 of file epc-ue-nas.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ ActivateEpsBearer()

void ns3::EpcUeNas::ActivateEpsBearer	(	EpsBearer	bearer,
		Ptr< EpcTft >	tft )

Activate an EPS bearer.

Parameters

bearer	the characteristics of the bearer to be created
tft	the TFT identifying the traffic that will go on this bearer

Definition at line 168 of file epc-ue-nas.cc.

References ACTIVE, ns3::EpcUeNas::BearerToBeActivated::bearer, m_bearersToBeActivatedList, m_bearersToBeActivatedListForReconnection, m_state, NS_FATAL_ERROR, NS_LOG_FUNCTION, and ns3::EpcUeNas::BearerToBeActivated::tft.

Referenced by ns3::NoBackhaulEpcHelper::DoActivateEpsBearerForUe().

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◆ Connect() [1/2]

void ns3::EpcUeNas::Connect ( )

Causes NAS to tell AS to go to ACTIVE state.

The end result is equivalent with EMM Registered + ECM Connected states.

Definition at line 139 of file epc-ue-nas.cc.

References ns3::LteAsSapProvider::Connect(), m_asSapProvider, and NS_LOG_FUNCTION.

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◆ Connect() [2/2]

void ns3::EpcUeNas::Connect	(	uint16_t	cellId,
		uint32_t	dlEarfcn )

Causes NAS to tell AS to camp to a specific cell and go to ACTIVE state.

Parameters

cellId	the id of the eNB to camp on
dlEarfcn	the DL frequency of the eNB

The end result is equivalent with EMM Registered + ECM Connected states. Since RRC Idle Mode cell selection is not supported yet, we force the UE RRC to be camped on a specific eNB.

Definition at line 148 of file epc-ue-nas.cc.

References ns3::LteAsSapProvider::Connect(), ns3::LteAsSapProvider::ForceCampedOnEnb(), m_asSapProvider, and NS_LOG_FUNCTION.

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◆ Disconnect()

void ns3::EpcUeNas::Disconnect ( )

instruct the NAS to disconnect

Definition at line 160 of file epc-ue-nas.cc.

References ns3::LteAsSapProvider::Disconnect(), m_asSapProvider, NS_LOG_FUNCTION, OFF, and SwitchToState().

Referenced by DoNotifyConnectionReleased().

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◆ DoActivateEpsBearer()

void ns3::EpcUeNas::DoActivateEpsBearer	(	EpsBearer	bearer,
		Ptr< EpcTft >	tft )

private

Activate EPS Bearer.

Parameters

bearer	the EPS bearer
tft	the EPC TFT

Definition at line 258 of file epc-ue-nas.cc.

References ns3::EpcTftClassifier::Add(), m_bidCounter, m_tftClassifier, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

Referenced by SwitchToState().

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◆ DoDispose()

void ns3::EpcUeNas::DoDispose ( )

overridevirtual

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 overridden 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 60 of file epc-ue-nas.cc.

References m_asSapUser, and NS_LOG_FUNCTION.

◆ DoNotifyConnectionFailed()

void ns3::EpcUeNas::DoNotifyConnectionFailed ( )

private

Notify connection failed.

Definition at line 226 of file epc-ue-nas.cc.

References ns3::LteAsSapProvider::Connect(), m_asSapProvider, NS_LOG_FUNCTION, and ns3::Simulator::ScheduleNow().

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◆ DoNotifyConnectionReleased()

void ns3::EpcUeNas::DoNotifyConnectionReleased ( )

private

Notify connection released.

Definition at line 242 of file epc-ue-nas.cc.

References ns3::EpcTftClassifier::Delete(), Disconnect(), m_bearersToBeActivatedList, m_bearersToBeActivatedListForReconnection, m_bidCounter, m_tftClassifier, and NS_LOG_FUNCTION.

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◆ DoNotifyConnectionSuccessful()

void ns3::EpcUeNas::DoNotifyConnectionSuccessful ( )

private

Notify successful connection.

Definition at line 218 of file epc-ue-nas.cc.

References ACTIVE, NS_LOG_FUNCTION, and SwitchToState().

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◆ DoRecvData()

void ns3::EpcUeNas::DoRecvData ( Ptr< Packet > packet )

private

Receive data.

Parameters

packet the packet

Definition at line 235 of file epc-ue-nas.cc.

References m_forwardUpCallback, and NS_LOG_FUNCTION.

◆ GetAsSapUser()

LteAsSapUser * ns3::EpcUeNas::GetAsSapUser ( )

Returns: the AS SAP user exported by this RRC

Definition at line 118 of file epc-ue-nas.cc.

References m_asSapUser, and NS_LOG_FUNCTION.

◆ GetCsgId()

uint32_t ns3::EpcUeNas::GetCsgId ( ) const

Returns: csgId Closed Subscriber Group identity

Definition at line 104 of file epc-ue-nas.cc.

References m_csgId, and NS_LOG_FUNCTION.

◆ GetState()

EpcUeNas::State ns3::EpcUeNas::GetState ( ) const

Returns: The current state

Definition at line 267 of file epc-ue-nas.cc.

References m_state, and NS_LOG_FUNCTION.

◆ GetTypeId()

TypeId ns3::EpcUeNas::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 67 of file epc-ue-nas.cc.

References m_stateTransitionCallback, ns3::MakeTraceSourceAccessor(), and ns3::TypeId::SetParent().

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◆ Send()

bool ns3::EpcUeNas::Send	(	Ptr< Packet >	p,
		uint16_t	protocolNumber )

Enqueue an IP packet on the proper bearer for uplink transmission.

Parameters

p	the packet
protocolNumber	the protocol number of the packet

Returns: true if successful, false if an error occurred

Definition at line 189 of file epc-ue-nas.cc.

References ACTIVE, ns3::EpcTftClassifier::Classify(), m_asSapProvider, m_state, m_tftClassifier, NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_WARN, ns3::LteAsSapProvider::SendData(), and ns3::EpcTft::UPLINK.

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◆ SetAsSapProvider()

void ns3::EpcUeNas::SetAsSapProvider ( LteAsSapProvider * s )

Set the AS SAP provider to interact with the NAS entity.

Parameters

s	the AS SAP provider

Definition at line 111 of file epc-ue-nas.cc.

References m_asSapProvider, and NS_LOG_FUNCTION.

◆ SetCsgId()

void ns3::EpcUeNas::SetCsgId ( uint32_t csgId )

Parameters

csgId Closed Subscriber Group identity

Definition at line 96 of file epc-ue-nas.cc.

References m_asSapProvider, m_csgId, NS_LOG_FUNCTION, and ns3::LteAsSapProvider::SetCsgWhiteList().

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◆ SetDevice()

void ns3::EpcUeNas::SetDevice ( Ptr< NetDevice > dev )

Parameters

dev	the UE NetDevice

Definition at line 82 of file epc-ue-nas.cc.

References m_device, and NS_LOG_FUNCTION.

◆ SetForwardUpCallback()

void ns3::EpcUeNas::SetForwardUpCallback ( Callback< void, Ptr< Packet > > cb )

set the callback used to forward data packets up the stack

Parameters

cb	the callback

Definition at line 125 of file epc-ue-nas.cc.

References m_forwardUpCallback, and NS_LOG_FUNCTION.

◆ SetImsi()

void ns3::EpcUeNas::SetImsi ( uint64_t imsi )

Parameters

imsi	the unique UE identifier

Definition at line 89 of file epc-ue-nas.cc.

References m_imsi, and NS_LOG_FUNCTION.

◆ StartCellSelection()

void ns3::EpcUeNas::StartCellSelection ( uint32_t dlEarfcn )

Causes NAS to tell AS to find a suitable cell and camp to it.

Parameters

dlEarfcn the DL frequency of the eNB

Definition at line 132 of file epc-ue-nas.cc.

References m_asSapProvider, NS_LOG_FUNCTION, and ns3::LteAsSapProvider::StartCellSelection().

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◆ SwitchToState()

void ns3::EpcUeNas::SwitchToState ( State s )

private

Switch the UE RRC to the given state.

Parameters

s	the destination state

Definition at line 274 of file epc-ue-nas.cc.

References ACTIVE, DoActivateEpsBearer(), m_bearersToBeActivatedList, m_imsi, m_state, m_stateTransitionCallback, NS_LOG_FUNCTION, NS_LOG_INFO, and ns3::ToString().

Referenced by Disconnect(), and DoNotifyConnectionSuccessful().

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Friends And Related Symbol Documentation

◆ MemberLteAsSapUser< EpcUeNas >

friend class MemberLteAsSapUser< EpcUeNas >

friend

allow MemberLteAsSapUser<EpcUeNas> class friend access

Definition at line 1 of file epc-ue-nas.h.

Referenced by EpcUeNas().

Member Data Documentation

◆ m_asSapProvider

LteAsSapProvider* ns3::EpcUeNas::m_asSapProvider

private

LTE SAP provider.

Definition at line 220 of file epc-ue-nas.h.

Referenced by Connect(), Connect(), Disconnect(), DoNotifyConnectionFailed(), Send(), SetAsSapProvider(), SetCsgId(), and StartCellSelection().

◆ m_asSapUser

LteAsSapUser* ns3::EpcUeNas::m_asSapUser

private

LTE SAP user.

Definition at line 222 of file epc-ue-nas.h.

Referenced by EpcUeNas(), DoDispose(), and GetAsSapUser().

◆ m_bearersToBeActivatedList

std::list<BearerToBeActivated> ns3::EpcUeNas::m_bearersToBeActivatedList

private

bearers to be activated list

Definition at line 236 of file epc-ue-nas.h.

Referenced by ActivateEpsBearer(), DoNotifyConnectionReleased(), and SwitchToState().

◆ m_bearersToBeActivatedListForReconnection

std::list<BearerToBeActivated> ns3::EpcUeNas::m_bearersToBeActivatedListForReconnection

private

bearers to be activated list maintained and to be used for reconnecting an out-of-sync UE

Definition at line 243 of file epc-ue-nas.h.

Referenced by ActivateEpsBearer(), and DoNotifyConnectionReleased().

◆ m_bidCounter

uint8_t ns3::EpcUeNas::m_bidCounter

private

bid counter

Definition at line 224 of file epc-ue-nas.h.

Referenced by DoActivateEpsBearer(), and DoNotifyConnectionReleased().

◆ m_csgId

uint32_t ns3::EpcUeNas::m_csgId

private

Closed Subscriber Group identity.

Definition at line 217 of file epc-ue-nas.h.

Referenced by GetCsgId(), and SetCsgId().

◆ m_device

Ptr<NetDevice> ns3::EpcUeNas::m_device

private

The UE NetDevice.

Definition at line 211 of file epc-ue-nas.h.

Referenced by SetDevice().

◆ m_forwardUpCallback

Callback<void, Ptr<Packet> > ns3::EpcUeNas::m_forwardUpCallback

private

upward callback

Definition at line 227 of file epc-ue-nas.h.

Referenced by DoRecvData(), and SetForwardUpCallback().

◆ m_imsi

uint64_t ns3::EpcUeNas::m_imsi

private

The unique UE identifier.

Definition at line 214 of file epc-ue-nas.h.

Referenced by SetImsi(), and SwitchToState().

◆ m_state

State ns3::EpcUeNas::m_state

private

The current UE NAS state.

Definition at line 201 of file epc-ue-nas.h.

Referenced by ActivateEpsBearer(), GetState(), Send(), and SwitchToState().

◆ m_stateTransitionCallback

TracedCallback<State, State> ns3::EpcUeNas::m_stateTransitionCallback

private

The StateTransition trace source.

Fired upon every UE NAS state transition. Exporting old state and new state.

Todo: This should be a TracedValue

Definition at line 208 of file epc-ue-nas.h.

Referenced by GetTypeId(), and SwitchToState().

◆ m_tftClassifier

EpcTftClassifier ns3::EpcUeNas::m_tftClassifier

private

tft classifier

Definition at line 225 of file epc-ue-nas.h.

Referenced by DoActivateEpsBearer(), DoNotifyConnectionReleased(), and Send().

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

src/lte/model/epc-ue-nas.h
src/lte/model/epc-ue-nas.cc

Classes

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ StateTracedCallback

Member Enumeration Documentation

◆ State

Constructor & Destructor Documentation

◆ EpcUeNas()

◆ ~EpcUeNas()

Member Function Documentation

◆ ActivateEpsBearer()

◆ Connect() [1/2]

◆ Connect() [2/2]

◆ Disconnect()

◆ DoActivateEpsBearer()

◆ DoDispose()

◆ DoNotifyConnectionFailed()

◆ DoNotifyConnectionReleased()

◆ DoNotifyConnectionSuccessful()

◆ DoRecvData()

◆ GetAsSapUser()

◆ GetCsgId()

◆ GetState()

◆ GetTypeId()

◆ Send()

◆ SetAsSapProvider()

◆ SetCsgId()

◆ SetDevice()

◆ SetForwardUpCallback()

◆ SetImsi()

◆ StartCellSelection()

◆ SwitchToState()

Friends And Related Symbol Documentation

◆ MemberLteAsSapUser< EpcUeNas >

Member Data Documentation

◆ m_asSapProvider

◆ m_asSapUser

◆ m_bearersToBeActivatedList

◆ m_bearersToBeActivatedListForReconnection

◆ m_bidCounter

◆ m_csgId

◆ m_device

◆ m_forwardUpCallback

◆ m_imsi

◆ m_state

◆ m_stateTransitionCallback

◆ m_tftClassifier