86 enbInfo->s1uAddr = enbS1uAddr;
87 enbInfo->s1apSapEnb = enbS1apSap;
97 ueInfo->mmeUeS1Id = imsi;
98 ueInfo->bearerCounter = 0;
106 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
109 "too many bearers already! " << it->second->bearerCounter);
111 bearerInfo.
bearerId = ++(it->second->bearerCounter);
112 bearerInfo.
tft = tft;
113 bearerInfo.
bearer = bearer;
114 it->second->bearersToBeActivated.push_back(bearerInfo);
127 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
129 it->second->cellId = gci;
137 mmeS11Fteid.
teid = imsi;
141 std::list<GtpcCreateSessionRequestMessage::BearerContextToBeCreated> bearerContexts;
142 for (std::list<BearerInfo>::iterator bit = it->second->bearersToBeActivated.begin();
143 bit != it->second->bearersToBeActivated.end();
148 bearerContext.
tft = bit->tft;
150 bearerContexts.push_back(bearerContext);
152 NS_LOG_DEBUG(
"BearerContextToBeCreated size = " << bearerContexts.size());
159 packet->AddHeader(msg);
168 std::list<EpcS1apSapMme::ErabSetupItem> erabSetupList)
179 std::list<EpcS1apSapMme::ErabSwitchedInDownlinkItem> erabToBeSwitchedInDownlinkList)
182 uint64_t imsi = mmeUeS1Id;
183 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
185 NS_LOG_INFO(
"IMSI " << imsi <<
" old eNB: " << it->second->cellId <<
", new eNB: " << gci);
186 it->second->cellId = gci;
187 it->second->enbUeS1Id = enbUeS1Id;
193 std::list<GtpcModifyBearerRequestMessage::BearerContextToBeModified> bearerContexts;
194 for (
auto& erab : erabToBeSwitchedInDownlinkList)
196 NS_LOG_DEBUG(
"erabId " << erab.erabId <<
" eNB " << erab.enbTransportLayerAddress
197 <<
" TEID " << erab.enbTeid);
202 bearerContext.
fteid.
addr = erab.enbTransportLayerAddress;
204 bearerContexts.push_back(bearerContext);
211 packet->AddHeader(msg);
220 std::list<EpcS1apSapMme::ErabToBeReleasedIndication> erabToBeReleaseIndication)
223 uint64_t imsi = mmeUeS1Id;
224 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
228 std::list<GtpcDeleteBearerCommandMessage::BearerContext> bearerContexts;
229 for (
auto& erab : erabToBeReleaseIndication)
234 bearerContexts.push_back(bearerContext);
241 packet->AddHeader(msg);
250 std::list<BearerInfo>::iterator bit = ueInfo->bearersToBeActivated.begin();
251 while (bit != ueInfo->bearersToBeActivated.end())
253 if (bit->bearerId == epsBearerId)
255 ueInfo->bearersToBeActivated.erase(bit);
256 ueInfo->bearerCounter = ueInfo->bearerCounter - 1;
270 packet->PeekHeader(header);
297 uint64_t imsi = header.
GetTeid();
299 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
301 uint16_t cellId = it->second->cellId;
302 uint16_t enbUeS1Id = it->second->enbUeS1Id;
303 uint64_t mmeUeS1Id = it->second->mmeUeS1Id;
304 NS_LOG_DEBUG(
"cellId " << cellId <<
" mmeUeS1Id " << mmeUeS1Id <<
" enbUeS1Id " << enbUeS1Id);
305 std::map<uint16_t, Ptr<EnbInfo>>::iterator jt =
m_enbInfoMap.find(cellId);
309 packet->RemoveHeader(msg);
311 std::list<EpcS1apSapEnb::ErabToBeSetupItem> erabToBeSetupList;
312 std::list<GtpcCreateSessionResponseMessage::BearerContextCreated> bearerContexts =
314 NS_LOG_DEBUG(
"BearerContextsCreated size = " << bearerContexts.size());
315 for (
auto& bearerContext : bearerContexts)
318 erab.
erabId = bearerContext.epsBearerId;
321 erab.
sgwTeid = bearerContext.fteid.teid;
323 erabToBeSetupList.push_back(erab);
326 NS_LOG_DEBUG(
"Send InitialContextSetupRequest to eNB " << jt->second->s1apSapEnb);
327 jt->second->s1apSapEnb->InitialContextSetupRequest(mmeUeS1Id, enbUeS1Id, erabToBeSetupList);
335 packet->RemoveHeader(msg);
338 uint64_t imsi = header.
GetTeid();
340 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
342 uint16_t cellId = it->second->cellId;
343 uint16_t enbUeS1Id = it->second->enbUeS1Id;
344 uint64_t mmeUeS1Id = it->second->mmeUeS1Id;
345 NS_LOG_DEBUG(
"cellId " << cellId <<
" mmeUeS1Id " << mmeUeS1Id <<
" enbUeS1Id " << enbUeS1Id);
346 std::list<EpcS1apSapEnb::ErabSwitchedInUplinkItem>
347 erabToBeSwitchedInUplinkList;
348 std::map<uint16_t, Ptr<EnbInfo>>::iterator jt =
m_enbInfoMap.find(cellId);
351 NS_LOG_DEBUG(
"Send PathSwitchRequestAcknowledge to eNB " << jt->second->s1apSapEnb);
352 jt->second->s1apSapEnb->PathSwitchRequestAcknowledge(enbUeS1Id,
355 erabToBeSwitchedInUplinkList);
362 uint64_t imsi = header.
GetTeid();
364 std::map<uint64_t, Ptr<UeInfo>>::iterator it =
m_ueInfoMap.find(imsi);
368 packet->RemoveHeader(msg);
372 std::list<uint8_t> epsBearerIds;
375 epsBearerIds.push_back(ebid);
384 if (it->second->cellId == 0)
395 packetOut->AddHeader(msgOut);
This application implements the Mobility Management Entity (MME) according to the 3GPP TS 23....
EpcMmeApplication()
Constructor.
void AddUe(uint64_t imsi)
Add a new UE to the MME.
void DoPathSwitchRequest(uint64_t enbUeS1Id, uint64_t mmeUeS1Id, uint16_t cgi, std::list< EpcS1apSapMme::ErabSwitchedInDownlinkItem > erabToBeSwitchedInDownlinkList)
Process the S1 Path Switch Request received from an eNB.
void AddEnb(uint16_t ecgi, Ipv4Address enbS1UAddr, EpcS1apSapEnb *enbS1apSap)
Add a new eNB to the MME.
std::map< uint64_t, Ptr< UeInfo > > m_ueInfoMap
UeInfo stored by IMSI.
void AddSgw(Ipv4Address sgwS11Addr, Ipv4Address mmeS11Addr, Ptr< Socket > mmeS11Socket)
Add a new SGW to the MME.
Ptr< Socket > m_s11Socket
Socket to send/receive messages in the S11 interface.
friend class MemberEpcS1apSapMme< EpcMmeApplication >
allow MemberEpcS1apSapMme<EpcMme> class friend access
EpcS1apSapMme * m_s1apSapMme
EpcS1apSapMme.
Ipv4Address m_mmeS11Addr
IPv4 address of the MME S11 interface.
Ipv4Address m_sgwS11Addr
IPv4 address of the SGW S11 interface.
~EpcMmeApplication() override
Destructor.
void DoInitialContextSetupResponse(uint64_t mmeUeS1Id, uint16_t enbUeS1Id, std::list< EpcS1apSapMme::ErabSetupItem > erabSetupList)
Process the S1 Initial Context Setup Response received from an eNB.
void DoInitialUeMessage(uint64_t mmeUeS1Id, uint16_t enbUeS1Id, uint64_t imsi, uint16_t ecgi)
Process the S1 Initial UE Message received from an eNB.
static TypeId GetTypeId()
Get the type ID.
void DoErabReleaseIndication(uint64_t mmeUeS1Id, uint16_t enbUeS1Id, std::list< EpcS1apSapMme::ErabToBeReleasedIndication > erabToBeReleaseIndication)
Process ERAB Release Indication received from an eNB.
void DoRecvCreateSessionResponse(GtpcHeader &header, Ptr< Packet > packet)
Process GTP-C Create Session Response message.
void DoRecvDeleteBearerRequest(GtpcHeader &header, Ptr< Packet > packet)
Process GTP-C Delete Bearer Request message.
void DoRecvModifyBearerResponse(GtpcHeader &header, Ptr< Packet > packet)
Process GTP-C Modify Bearer Response message.
std::map< uint16_t, Ptr< EnbInfo > > m_enbInfoMap
EnbInfo stored by EGCI.
void RemoveBearer(Ptr< UeInfo > ueInfo, uint8_t epsBearerId)
This Function erases all contexts of bearer from MME side.
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.
uint16_t m_gtpcUdpPort
UDP port for GTP-C protocol. Fixed by the standard to port 2123.
void DoDispose() override
Destructor implementation.
EpcS1apSapMme * GetS1apSapMme()
void RecvFromS11Socket(Ptr< Socket > socket)
Reads the S11 messages from a socket.
eNB side of the S1-AP Service Access Point (SAP), provides the eNB methods to be called when an S1-AP...
MME side of the S1-AP Service Access Point (SAP), provides the MME methods to be called when an S1-AP...
This class contains the specification of EPS Bearers.
GTP-C Create Session Request Message.
void SetUliEcgi(uint32_t uliEcgi)
Set the UliEcgi.
void SetBearerContextsToBeCreated(std::list< BearerContextToBeCreated > bearerContexts)
Set the Bearer Contexts.
void SetImsi(uint64_t imsi)
Set the IMSI.
void SetSenderCpFteid(GtpcHeader::Fteid_t fteid)
Set the Sender CpFteid.
GTP-C Create Session Response Message.
std::list< BearerContextCreated > GetBearerContextsCreated() const
Get the Container of Bearer Contexts.
GTP-C Delete Bearer Command Message.
void SetBearerContexts(std::list< BearerContext > bearerContexts)
Set the Bearer contexts.
GTP-C Delete Bearer Request Message.
std::list< uint8_t > GetEpsBearerIds() const
Get the Bearers IDs.
GTP-C Delete Bearer Response Message.
void SetEpsBearerIds(std::list< uint8_t > epsBearerIds)
Set the Bearers IDs.
GTP-C Modify Bearer Request Message.
void SetBearerContextsToBeModified(std::list< BearerContextToBeModified > bearerContexts)
Set the Bearer Contexts.
void SetUliEcgi(uint32_t uliEcgi)
Set the UliEcgi.
void SetImsi(uint64_t imsi)
Set the IMSI.
GTP-C Modify Bearer Response Message.
Cause_t GetCause() const
Get the Cause.
Ipv4 addresses are stored in host order in this class.
A base class which provides memory management and object aggregation.
Smart pointer class similar to boost::intrusive_ptr.
void SetRecvCallback(Callback< void, Ptr< Socket > > receivedData)
Notify application when new data is available to be read.
virtual int SendTo(Ptr< Packet > p, uint32_t flags, const Address &toAddress)=0
Send data to a specified peer.
a unique identifier for an interface.
TypeId SetParent(TypeId tid)
Set the parent TypeId.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
#define NS_ASSERT_MSG(condition, message)
At runtime, in debugging builds, if this condition is not true, the program prints the message to out...
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Hold info on an EPS bearer to be activated.
uint8_t bearerId
bearer ID
EpsBearer bearer
bearer QOS characteristics
Ptr< EpcTft > tft
traffic flow template
ErabToBeSetupItem structure.
EpsBearer erabLevelQosParameters
Level QOS parameters.
Ipv4Address transportLayerAddress
transport layer address
Bearer Context structure.
EpsBearer bearerLevelQos
bearer QOS level
uint8_t epsBearerId
EPS bearer ID.
Ptr< EpcTft > tft
traffic flow template
uint8_t m_epsBearerId
EPS bearer ID.
Bearer Context structure.
uint8_t epsBearerId
EPS bearer ID.
GtpcHeader::Fteid_t fteid
FTEID.