This entity is installed inside an eNB and provides the functionality for the X2 interface. More...
#include "epc-x2.h"
Public Member Functions | |
EpcX2 () | |
Constructor. | |
~EpcX2 () override | |
Destructor. | |
void | AddX2Interface (uint16_t enb1CellId, Ipv4Address enb1X2Address, std::vector< uint16_t > enb2CellIds, Ipv4Address enb2X2Address) |
Add an X2 interface to this EPC X2 entity. | |
void | DoDispose () override |
Destructor implementation. | |
EpcX2SapProvider * | GetEpcX2SapProvider () |
void | RecvFromX2cSocket (Ptr< Socket > socket) |
Method to be assigned to the recv callback of the X2-C (X2 Control Plane) socket. | |
void | RecvFromX2uSocket (Ptr< Socket > socket) |
Method to be assigned to the recv callback of the X2-U (X2 User Plane) socket. | |
void | SetEpcX2SapUser (EpcX2SapUser *s) |
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. | |
Protected Member Functions | |
virtual void | DoSendHandoverCancel (EpcX2SapProvider::HandoverCancelParams params) |
Send Handover Cancel function. | |
virtual void | DoSendHandoverPreparationFailure (EpcX2SapProvider::HandoverPreparationFailureParams params) |
Send handover preparation failure function. | |
virtual void | DoSendHandoverRequest (EpcX2SapProvider::HandoverRequestParams params) |
Send handover request function. | |
virtual void | DoSendHandoverRequestAck (EpcX2SapProvider::HandoverRequestAckParams params) |
Send handover request ack function. | |
virtual void | DoSendLoadInformation (EpcX2SapProvider::LoadInformationParams params) |
Send load information function. | |
virtual void | DoSendResourceStatusUpdate (EpcX2SapProvider::ResourceStatusUpdateParams params) |
Send resource status update function. | |
virtual void | DoSendSnStatusTransfer (EpcX2SapProvider::SnStatusTransferParams params) |
Send SN status transfer function. | |
virtual void | DoSendUeContextRelease (EpcX2SapProvider::UeContextReleaseParams params) |
Send UE context release function. | |
virtual void | DoSendUeData (EpcX2SapProvider::UeDataParams params) |
Send UE data function. | |
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. | |
Protected Attributes | |
EpcX2SapProvider * | m_x2SapProvider |
X2 SAP provider. | |
EpcX2SapUser * | m_x2SapUser |
X2 SAP user. | |
Private Attributes | |
uint16_t | m_x2cUdpPort |
UDP ports to be used for the X2-C interface. | |
std::map< Ptr< Socket >, Ptr< X2CellInfo > > | m_x2InterfaceCellIds |
Map the localSocket (the one receiving the X2 message) to the corresponding (sourceCellId, targetCellId) associated with the X2 interface. | |
std::map< uint16_t, Ptr< X2IfaceInfo > > | m_x2InterfaceSockets |
Map the targetCellId to the corresponding (sourceSocket, remoteIpAddr) to be used to send the X2 message. | |
uint16_t | m_x2uUdpPort |
UDP ports to be used for the X2-U interface. | |
Friends | |
class | EpcX2SpecificEpcX2SapProvider< EpcX2 > |
allow EpcX2SpecificEpcX2SapProvider<EpcX2> class friend access | |
Additional Inherited Members | |
Related Symbols inherited from ns3::ObjectBase | |
static TypeId | GetObjectIid () |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. | |
This entity is installed inside an eNB and provides the functionality for the X2 interface.
Introspection did not find any typical Config paths.
No Attributes are defined for this type.
No TraceSources are defined for this type.
Group: Lte
Size of this type is 176 bytes (on a 64-bit architecture).
ns3::EpcX2::EpcX2 | ( | ) |
Constructor.
Definition at line 74 of file epc-x2.cc.
References EpcX2SpecificEpcX2SapProvider< EpcX2 >, m_x2SapProvider, and NS_LOG_FUNCTION.
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void ns3::EpcX2::AddX2Interface | ( | uint16_t | enb1CellId, |
Ipv4Address | enb1X2Address, | ||
std::vector< uint16_t > | enb2CellIds, | ||
Ipv4Address | enb2X2Address ) |
Add an X2 interface to this EPC X2 entity.
enb1CellId | the cell ID of the current eNodeB |
enb1X2Address | the address of the current eNodeB |
enb2CellIds | the cell IDs of the neighbouring eNodeB |
enb2X2Address | the address of the neighbouring eNodeB |
Definition at line 120 of file epc-x2.cc.
References ns3::Create(), ns3::Socket::CreateSocket(), ns3::Object::GetObject(), ns3::TypeId::LookupByName(), m_x2cUdpPort, m_x2InterfaceCellIds, m_x2InterfaceSockets, m_x2uUdpPort, ns3::MakeCallback(), NS_ASSERT, NS_ASSERT_MSG, NS_LOG_FUNCTION, RecvFromX2cSocket(), and RecvFromX2uSocket().
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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 89 of file epc-x2.cc.
References m_x2InterfaceCellIds, m_x2InterfaceSockets, m_x2SapProvider, and NS_LOG_FUNCTION.
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protectedvirtual |
Send Handover Cancel function.
params | the handover cancel parameters |
Definition at line 782 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2HandoverCancelHeader::GetLengthOfIes(), ns3::EpcX2HandoverCancelHeader::GetNumberOfIes(), ns3::EpcX2Header::HandoverCancel, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2HandoverCancelHeader::SetCause(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2HandoverCancelHeader::SetNewEnbUeX2apId(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2HandoverCancelHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), and ns3::EpcX2Header::SuccessfulOutcome.
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protectedvirtual |
Send handover preparation failure function.
params | the handover preparation failure parameters |
Definition at line 524 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2HandoverPreparationFailureHeader::GetLengthOfIes(), ns3::EpcX2HandoverPreparationFailureHeader::GetNumberOfIes(), ns3::EpcX2Header::HandoverPreparation, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2HandoverPreparationFailureHeader::SetCause(), ns3::EpcX2HandoverPreparationFailureHeader::SetCriticalityDiagnostics(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2HandoverPreparationFailureHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), and ns3::EpcX2Header::UnsuccessfulOutcome.
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protectedvirtual |
Send handover request function.
params | the send handover request parameters |
Definition at line 426 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2HandoverRequestHeader::GetLengthOfIes(), ns3::EpcX2HandoverRequestHeader::GetNumberOfIes(), ns3::EpcX2Header::HandoverPreparation, ns3::EpcX2Header::InitiatingMessage, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2HandoverRequestHeader::SetBearers(), ns3::EpcX2HandoverRequestHeader::SetCause(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2HandoverRequestHeader::SetMmeUeS1apId(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2HandoverRequestHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), ns3::EpcX2HandoverRequestHeader::SetTargetCellId(), ns3::EpcX2HandoverRequestHeader::SetUeAggregateMaxBitRateDownlink(), and ns3::EpcX2HandoverRequestHeader::SetUeAggregateMaxBitRateUplink().
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protectedvirtual |
Send handover request ack function.
params | the send handover request ack parameters |
Definition at line 476 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2HandoverRequestAckHeader::GetLengthOfIes(), ns3::EpcX2HandoverRequestAckHeader::GetNumberOfIes(), ns3::EpcX2Header::HandoverPreparation, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2HandoverRequestAckHeader::SetAdmittedBearers(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2HandoverRequestAckHeader::SetNewEnbUeX2apId(), ns3::EpcX2HandoverRequestAckHeader::SetNotAdmittedBearers(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2HandoverRequestAckHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), and ns3::EpcX2Header::SuccessfulOutcome.
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Send load information function.
params | the send load information parameters |
Definition at line 663 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2LoadInformationHeader::GetLengthOfIes(), ns3::EpcX2LoadInformationHeader::GetNumberOfIes(), ns3::EpcX2Header::InitiatingMessage, ns3::EpcX2Header::LoadIndication, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2LoadInformationHeader::SetCellInformationList(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2Header::SetNumberOfIes(), and ns3::EpcX2Header::SetProcedureCode().
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protectedvirtual |
Send resource status update function.
params | the send resource status update parameters |
Definition at line 705 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2ResourceStatusUpdateHeader::GetLengthOfIes(), ns3::EpcX2ResourceStatusUpdateHeader::GetNumberOfIes(), ns3::EpcX2Header::InitiatingMessage, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2Header::ResourceStatusReporting, ns3::EpcX2ResourceStatusUpdateHeader::SetCellMeasurementResultList(), ns3::EpcX2ResourceStatusUpdateHeader::SetEnb1MeasurementId(), ns3::EpcX2ResourceStatusUpdateHeader::SetEnb2MeasurementId(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2Header::SetNumberOfIes(), and ns3::EpcX2Header::SetProcedureCode().
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protectedvirtual |
Send SN status transfer function.
params | the SN status transfer parameters |
Definition at line 571 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2SnStatusTransferHeader::GetLengthOfIes(), ns3::EpcX2SnStatusTransferHeader::GetNumberOfIes(), ns3::EpcX2Header::InitiatingMessage, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2SnStatusTransferHeader::SetErabsSubjectToStatusTransferList(), ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2SnStatusTransferHeader::SetNewEnbUeX2apId(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2SnStatusTransferHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), and ns3::EpcX2Header::SnStatusTransfer.
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protectedvirtual |
Send UE context release function.
params | the UE context release parameters |
Definition at line 619 of file epc-x2.cc.
References ns3::Create(), ns3::EpcX2UeContextReleaseHeader::GetLengthOfIes(), ns3::EpcX2UeContextReleaseHeader::GetNumberOfIes(), ns3::EpcX2Header::InitiatingMessage, m_x2cUdpPort, m_x2InterfaceSockets, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2Header::SetLengthOfIes(), ns3::EpcX2Header::SetMessageType(), ns3::EpcX2UeContextReleaseHeader::SetNewEnbUeX2apId(), ns3::EpcX2Header::SetNumberOfIes(), ns3::EpcX2UeContextReleaseHeader::SetOldEnbUeX2apId(), ns3::EpcX2Header::SetProcedureCode(), and ns3::EpcX2Header::UeContextRelease.
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Send UE data function.
params | EpcX2SapProvider::UeDataParams |
Definition at line 751 of file epc-x2.cc.
References ns3::GtpuHeader::GetSerializedSize(), m_x2InterfaceSockets, m_x2uUdpPort, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::GtpuHeader::SetLength(), and ns3::GtpuHeader::SetTeid().
EpcX2SapProvider * ns3::EpcX2::GetEpcX2SapProvider | ( | ) |
Definition at line 113 of file epc-x2.cc.
References m_x2SapProvider, and NS_LOG_FUNCTION.
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Get the type ID.
Definition at line 99 of file epc-x2.cc.
References ns3::TypeId::SetParent().
Method to be assigned to the recv callback of the X2-C (X2 Control Plane) socket.
It is called when the eNB receives a packet from the peer eNB of the X2-C interface
socket | socket of the X2-C interface |
Definition at line 169 of file epc-x2.cc.
References ns3::EpcX2HandoverRequestAckHeader::GetAdmittedBearers(), ns3::EpcX2HandoverRequestHeader::GetBearers(), ns3::EpcX2HandoverCancelHeader::GetCause(), ns3::EpcX2HandoverPreparationFailureHeader::GetCause(), ns3::EpcX2HandoverRequestHeader::GetCause(), ns3::EpcX2LoadInformationHeader::GetCellInformationList(), ns3::EpcX2ResourceStatusUpdateHeader::GetCellMeasurementResultList(), ns3::EpcX2HandoverPreparationFailureHeader::GetCriticalityDiagnostics(), ns3::EpcX2ResourceStatusUpdateHeader::GetEnb1MeasurementId(), ns3::EpcX2ResourceStatusUpdateHeader::GetEnb2MeasurementId(), ns3::EpcX2SnStatusTransferHeader::GetErabsSubjectToStatusTransferList(), ns3::EpcX2Header::GetMessageType(), ns3::EpcX2HandoverRequestHeader::GetMmeUeS1apId(), ns3::EpcX2HandoverCancelHeader::GetNewEnbUeX2apId(), ns3::EpcX2HandoverRequestAckHeader::GetNewEnbUeX2apId(), ns3::EpcX2SnStatusTransferHeader::GetNewEnbUeX2apId(), ns3::EpcX2UeContextReleaseHeader::GetNewEnbUeX2apId(), ns3::EpcX2HandoverRequestAckHeader::GetNotAdmittedBearers(), ns3::EpcX2HandoverCancelHeader::GetOldEnbUeX2apId(), ns3::EpcX2HandoverPreparationFailureHeader::GetOldEnbUeX2apId(), ns3::EpcX2HandoverRequestAckHeader::GetOldEnbUeX2apId(), ns3::EpcX2HandoverRequestHeader::GetOldEnbUeX2apId(), ns3::EpcX2SnStatusTransferHeader::GetOldEnbUeX2apId(), ns3::EpcX2UeContextReleaseHeader::GetOldEnbUeX2apId(), ns3::EpcX2Header::GetProcedureCode(), ns3::EpcX2HandoverRequestHeader::GetTargetCellId(), ns3::EpcX2HandoverRequestHeader::GetUeAggregateMaxBitRateDownlink(), ns3::EpcX2HandoverRequestHeader::GetUeAggregateMaxBitRateUplink(), ns3::EpcX2Header::HandoverCancel, ns3::EpcX2Header::HandoverPreparation, ns3::EpcX2Header::InitiatingMessage, ns3::EpcX2Header::LoadIndication, m_x2InterfaceCellIds, m_x2SapUser, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_INFO, NS_LOG_LOGIC, ns3::EpcX2SapUser::RecvHandoverCancel(), ns3::EpcX2SapUser::RecvHandoverPreparationFailure(), ns3::EpcX2SapUser::RecvHandoverRequest(), ns3::EpcX2SapUser::RecvHandoverRequestAck(), ns3::EpcX2SapUser::RecvLoadInformation(), ns3::EpcX2SapUser::RecvResourceStatusUpdate(), ns3::EpcX2SapUser::RecvSnStatusTransfer(), ns3::EpcX2SapUser::RecvUeContextRelease(), ns3::EpcX2Header::ResourceStatusReporting, ns3::EpcX2Header::SnStatusTransfer, ns3::EpcX2Header::SuccessfulOutcome, and ns3::EpcX2Header::UeContextRelease.
Referenced by AddX2Interface().
Method to be assigned to the recv callback of the X2-U (X2 User Plane) socket.
It is called when the eNB receives a packet from the peer eNB of the X2-U interface
socket | socket of the X2-U interface |
Definition at line 396 of file epc-x2.cc.
References ns3::GtpuHeader::GetTeid(), m_x2InterfaceCellIds, m_x2SapUser, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_LOGIC, and ns3::EpcX2SapUser::RecvUeData().
Referenced by AddX2Interface().
void ns3::EpcX2::SetEpcX2SapUser | ( | EpcX2SapUser * | s | ) |
s | the X2 SAP User to be used by this EPC X2 entity |
Definition at line 106 of file epc-x2.cc.
References m_x2SapUser, and NS_LOG_FUNCTION.
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private |
UDP ports to be used for the X2-C interface.
Definition at line 218 of file epc-x2.h.
Referenced by AddX2Interface(), DoSendHandoverCancel(), DoSendHandoverPreparationFailure(), DoSendHandoverRequest(), DoSendHandoverRequestAck(), DoSendLoadInformation(), DoSendResourceStatusUpdate(), DoSendSnStatusTransfer(), and DoSendUeContextRelease().
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Map the localSocket (the one receiving the X2 message) to the corresponding (sourceCellId, targetCellId) associated with the X2 interface.
Definition at line 213 of file epc-x2.h.
Referenced by AddX2Interface(), DoDispose(), RecvFromX2cSocket(), and RecvFromX2uSocket().
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private |
Map the targetCellId to the corresponding (sourceSocket, remoteIpAddr) to be used to send the X2 message.
Definition at line 207 of file epc-x2.h.
Referenced by AddX2Interface(), DoDispose(), DoSendHandoverCancel(), DoSendHandoverPreparationFailure(), DoSendHandoverRequest(), DoSendHandoverRequestAck(), DoSendLoadInformation(), DoSendResourceStatusUpdate(), DoSendSnStatusTransfer(), DoSendUeContextRelease(), and DoSendUeData().
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X2 SAP provider.
Definition at line 200 of file epc-x2.h.
Referenced by EpcX2(), DoDispose(), and GetEpcX2SapProvider().
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X2 SAP user.
Definition at line 199 of file epc-x2.h.
Referenced by RecvFromX2cSocket(), RecvFromX2uSocket(), and SetEpcX2SapUser().
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UDP ports to be used for the X2-U interface.
Definition at line 222 of file epc-x2.h.
Referenced by AddX2Interface(), and DoSendUeData().