CN105592486A - Disaster tolerance method, network element and server - Google Patents
Disaster tolerance method, network element and server Download PDFInfo
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- CN105592486A CN105592486A CN201410564234.9A CN201410564234A CN105592486A CN 105592486 A CN105592486 A CN 105592486A CN 201410564234 A CN201410564234 A CN 201410564234A CN 105592486 A CN105592486 A CN 105592486A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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Abstract
An embodiment of the invention discloses a disaster tolerance method which is applied to a serving-call session control function S-CSCF network element side. The method comprises the following steps: receiving a user called request message; and when determining that a session border controller SBC and/or a proxy-call session control function P-CSCF corresponding to the user are/is in a state of failure according to the user called request message, sending a server assignment request SAR message to a home subscriber server HSS so as to implement a disaster tolerance process according to the SAR message, wherein the SAR message carries a P-CSCF disaster tolerance identifier. Other embodiments of the invention disclose a network element and a server.
Description
Technical field
The present invention relates to agent call interactive function entity (P-CSCF, Proxy-CallSessionCallFunction) disaster tolerance technology, relates in particular to a kind of disaster recovery method and network element, server.
Background technology
Internet protocol multimedia subsystem (IMS, IPMultimediaSubsystem) is that Future Multimedia is logicalThe developing direction of letter is also the of paramount importance part of next generation network. Described IMS is third generation cooperationNetwork enabled agreement that partner plan (3GPP, ThirdGenerationPartnershipProject) proposes (IP,InternetProtocol) subsystem of multimedia service, the notable feature of described IMS be adopted session at the beginning ofBeginning agreement (SIP, SessionInitialProtocol) system, makes communication and access way irrelevant, so,Realize that multiple multimedia service control function separates with bearing capacity, calling separates, applies and serve with sessionThe function of separation, business and network detach, and it is many to realize integrated services between mobile network and internet etc.Plant function.
Conventionally in order to ensure reliable operation, the each entity in described IMS can detect down hop by testing mechanismThe usability status of network element, when the down hop network element failure, mails to described down hop network element by subsequent messageNetwork element for subsequent use or low priority network element, to realize the disaster tolerance of each entity.
But, existing session boarder controller (SBC, SessionBorderController) and/or P-CSCFThe detection method of fault is all deposited and can be produced a large amount of wireless connections foundation and release signaling, and so, can give can LTENetwork brings a large amount of signaling traffic loads, therefore, needs a kind of method badly, can realize SBC and/or P-CSCFWhen fault detect, reduce signaling traffic load, to ensure the stability of described LTE network.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of disaster recovery method and network element, clothesBusiness device, when can realizing SBC and/or P-CSCF fault detect and fault recovery, reduces LTE netNetwork signaling traffic load.
The technical scheme of the embodiment of the present invention is achieved in that the embodiment of the present invention provides a kind of disaster tolerance sideMethod, described method is applied to service call conversation control function S-CSCF network element side; Described method comprises:
Receive the called request message of user;
Determine the Session Border Controller SBC corresponding with described user according to the called request message of described userAnd/or agent call interactive function entity P-CSCF is in the time of malfunction, to home subscriber server HSSSend service assignment request SAR message, to realize disaster tolerance process according to described SAR message;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
In such scheme, described according to the definite SBC corresponding with described user of the called request message of described userAnd/or P-CSCF is in the time of malfunction, sends SAR message to HSS, comprising:
According to the called request message of described user, determine record the SBC corresponding with described user and/orThe status information of P-CSCF, and the status information of described SBC and/or P-CSCF is while being malfunction, toHSS sends SAR message;
Or, according to the called request message of described user, determine and do not record the SBC corresponding with described userAnd/or when the status information of P-CSCF, send with described user called to described SBC and/or P-CSCFThe business request information that request message is corresponding; Do not receive when determining that described SBC and/or P-CSCF sendAfter the service response message corresponding with described business request information, send SAR message to HSS.
In such scheme, described method also comprises:
Receive described HSS according to the service assignment response SAA message of described SAR message generation; DescribedSAA message is carried success response information, or false response messages;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In such scheme, described method also comprises:
Determine while carrying described success response information in described SAA message, start timer;
Wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
In such scheme, describedly wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding appearanceCalamity processing, comprising:
When arriving the default time of described timer, and determine while not receiving described user's registration request,Send the called failed message of user, discharge this session;
When within the default time of described timer, receive described user's registration request and determine and registeredCheng Hou, continues the called request of active user.
The embodiment of the present invention also provides a kind of disaster recovery method, and described method is applied to home subscriber serverHSS side, described method comprises:
Receive service assignment request SAR message; Wherein, described SAR message is service call session controlFunction S-CSCF network element generates according to the called request message of user; In described SAR message, carrying agency exhalesBe interactive function entity P-CSCF disaster tolerance mark.
In such scheme, described method also comprises:
According to described SAR message, determine mobile management entity MME and/or the clothes corresponding with described userBusiness general packet wireless service support node SGSN supports described P-CSCF disaster tolerance to identify indicated disaster toleranceWhen function, generate service assignment response SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, in described SAA message, carry success response information; Described success response information representation is supported instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described method also comprises:
According to described SAR message, determine that MME that described user is corresponding and/or SGSN do not support described inWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described method also comprises:
When definite described MME and/or SGSN support described P-CSCF disaster tolerance to identify indicated disaster tolerance meritWhen energy, send insertion user data requests IDR message to described MME and/or SGSN, so that described inMME and/or SGSN discharge network corresponding to described user and connect, and make described user establishing network connection again;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
The embodiment of the present invention also provides a kind of disaster recovery method, and described method is applied to mobile management entity MMEAnd/or service universal grouping wireless serving GPRS support node SGSN side; Described method comprises:
Receive and insert user data requests IDR message; In described IDR message, carry agent call interactive functionEntity P-CSCF disaster tolerance mark;
According to the described P-CSCF disaster tolerance mark in described IDR message, realize corresponding the going of described user and swashLive or attachment removal flow through a network, connect so that subscriber equipment corresponding to described user can re-establish network.
The embodiment of the present invention also provides a kind of the first network element, and described the first network element comprises:
The first receiving element, for receiving the called request message of user;
The first transmitting element, for determining the meeting corresponding with described user according to the called request message of described userWords boarder controller SBC and/or agent call interactive function entity P-CSCF are in the time of malfunction, to returningBelong to client server HSS and send service assignment request SAR message;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
In such scheme, described the first transmitting element, also for according to the called request message of described user, trueSurely record the status information of SBC and/or the P-CSCF corresponding with described user, and described SBC and/orWhen the status information of P-CSCF is malfunction, send SAR message to HSS;
Or, also for according to the called request message of described user, determine do not record corresponding with described userSBC and/or when the status information of P-CSCF, send and described use to described SBC and/or P-CSCFBusiness request information corresponding to the called request message in family; Do not receive described SBC and/or P-CSCF when determiningAfter the service response message corresponding with described business request information sending, send SAR message to HSS.
In such scheme, described the first receiving element, also disappears according to described SAR for receiving described HSSThe service assignment response SAA message that breath generates; Described SAA message is carried success response information, or wrongMistake response message;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In such scheme, described the first network element also comprises:
Timing unit, while carrying described success response information, starts timing for definite described SAA messageDevice, and wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
In such scheme, described timing unit, also for working as the default time of described timer that arrives, and reallyWhile determining not receive described user's registration request, send the called failed message of user, discharge this session;
Also, for when within the default time of described timer, receive described user's registration request and determineAfter having registered, continue the called request of active user.
The embodiment of the present invention also provides a kind of home subscriber server, and described server comprises:
The second receiving element, for receiving service assignment request SAR message; Wherein, described SAR messageThat service call conversation control function S-CSCF network element generates according to the called request message of user;
Determining unit, for determining that described SAR message carries agent call interactive function entityP-CSCF disaster tolerance mark.
In such scheme, described server also comprises:
Message generation unit, for according to described SAR message, determines the mobile management corresponding with described userEntity MME and/or service universal grouping wireless serving GPRS support node SGSN support described P-CSCF disaster toleranceWhile identifying indicated disaster tolerance function, generate service assignment response SAA message;
The second transmitting element, for being sent to described S-CSCF by described SAA message;
Wherein, in described SAA message, carry success response information; Described success response information representation is supported instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described message generation unit, also, for according to described SAR message, determines described useWhen the MME that family is corresponding and/or SGSN do not support that described P-CSCF disaster tolerance identifies indicated disaster tolerance function,Generate SAA message;
Described the second transmitting element, also for being sent to described S-CSCF by described SAA message;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described the second transmitting element, also determines that for working as described MME and/or SGSN prop upWhen holding described P-CSCF disaster tolerance and identifying indicated disaster tolerance function, send to described MME and/or SGSNInsert user data requests IDR message, so that described MME and/or SGSN discharge described user is correspondingNetwork connects, and makes described user establishing network connection again;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
The embodiment of the present invention also provides a kind of the second network element, and described the second network element comprises:
The 3rd receiving element, inserts user data requests IDR message for receiving; In described IDR message, takeBand agent call interactive function entity P-CSCF disaster tolerance mark;
Business realizing unit, for according to the described P-CSCF disaster tolerance mark of described IDR message, realizesThe deexcitation that described user is corresponding or attachment removal flow through a network, so that subscriber equipment corresponding to described user canRe-establishing network connects.
Embodiment of the present invention disaster recovery method and network element, server, can be in the called request flow process of user, reallyThe primary SBC that fixed described user is corresponding and/or P-CSCF, after malfunction, send service to HSSDistribute request (SAR, Server-Assignment-Request) message, wherein, in described SAR messageCarry P-CSCF disaster tolerance mark, so, described HSS is according to the P-CSCF carrying in described SAR messageDisaster tolerance mark, determines when MME and/or SGSN support that P-CSCF disaster tolerance identifies indicated disaster tolerance function,Send the insertion user data requests of carrying described P-CSCF disaster tolerance mark to described MME and/or SGSN(IDR, InsertSubscriberDataRequest) message, so that described MME and/or SGSN initiateDeexcitation or attachment removal flow through a network, notify described user to re-establish LET connection, IMSPDN connectionAnd IMS re-injection volume, thereby realize P-CSCF disaster tolerance process; Due to embodiment of the present invention user and SBC and/ or P-CSCF between without carry out periodicity detect, be only service call conversation control function (S-CSCF,Serving-CallSessionControlFunction, CSCF receives after called subscriber's request, just detects instituteWhether state primary SBC corresponding to user and/or P-CSCF in malfunction, and definite described user coupleThe primary SBC and/or the P-CSCF that answer realize based on described user and carry out P-CSCF appearance after malfunctionCalamity is recovered flow process, and therefore, the embodiment of the present invention can be targetedly to primary SBC and/or P-CSCFCarry out fault detect, and in the time of the fault of primary SBC and/or P-CSCF, progressively complete described user's correspondencePrimary SBC and/or P-CSCF service to the switching of SBC for subsequent use and/or P-CSCF, so, energyThe signaling traffic load of enough avoiding the detection signaling between user and SBC and/or P-CSCF to bring to LTE network,And can avoid all users simultaneously to SBC for subsequent use and/or P-CSCF switch cause signaling storm, fallLow LTE network signal load.
Brief description of the drawings
Fig. 1 is the realization flow schematic diagram one of fault detection method in prior art;
Fig. 2 is the realization flow schematic diagram two of fault detection method in prior art;
Fig. 3 is the realization flow schematic diagram one of embodiment of the present invention disaster recovery method;
Fig. 4 is the structural representation of the embodiment of the present invention the first network element;
Fig. 5 is the realization flow schematic diagram two of embodiment of the present invention disaster recovery method;
Fig. 6 is the structural representation of embodiment of the present invention home subscriber server;
Fig. 7 is that embodiment of the present invention MME and/or SGSN report whether support P-CSCF disaster tolerance to HSSIdentify the realization flow schematic diagram of indicated disaster tolerance function;
Fig. 8 is the schematic diagram of the specific implementation of embodiment of the present invention disaster recovery method;
Fig. 9 is the schematic flow sheet of the specific implementation of embodiment of the present invention disaster recovery method.
Detailed description of the invention
In actual applications, the fault detection method of SBC and/or P-CSCF has two kinds conventionally, is respectively:
As shown in Figure 1, described in the first, the fault detection method of SBC and/or P-CSCF comprises:
Subscriber equipment (UE, UserEquipment) by timed sending detect-message detect described SBC and/ or the availability of P-CSCF, when the SBC of primary SBC and/or P-CSCF or high priority being detectedAnd/or when P-CSCF fault, UE can be to described SBC and/or SBC for subsequent use corresponding to P-CSCF and/orThe SBC of P-CSCF or low priority and/or P-CSCF initiate to re-register request, to ensure described UEThe normal operation of follow-up business;
As shown in Figure 2, described in the second, the fault detection method of SBC and/or P-CSCF comprises:
Examine by public data network (PDN, PublicDataNetwork) gateway (GW, GateWay)Survey SBC and/or P-CSCF and whether can use, when described PDNGW detects SBC and/or P-CSCF eventAfter barrier, can notify UE to trigger re-injection volume, to ensure the normal operation of follow-up business of described UE.
But all there are the following problems for the fault detection method of above-mentioned two kinds of described SBC and/or P-CSCF:In the time of SBC and/or P-CSCF fault, all UE that described SBC and/or P-CSCF are corresponding all needRe-register, in re-registration process, set up radio bearer, now, can give described LTE Netowrk tapeCome network signal storm and network congestion; And, between described UE and SBC and/or P-CSCF frequentlyTiming detect-message also can make Radio Resource repeatedly switch from connected state to Idle state, so, can produce largeSignaling and release signaling are set up in amount wireless connections, bring a large amount of signaling traffic loads.
For addressing the above problem, the embodiment of the present invention provides a kind of disaster recovery method and network element, server; ForCan more at large understand feature of the present invention and technology contents, below in conjunction with accompanying drawing to reality of the present inventionNow be described in detail, the use of appended accompanying drawing explanation only for reference, is not used for limiting the present invention.
Embodiment mono-
Fig. 3 is the realization flow schematic diagram one of embodiment of the present invention disaster recovery method; Described method is applied toS-CSCF network element side; As shown in Figure 3, described method comprises:
Step 301: receive the called request message of user;
Step 302: according to the called request message of described user determine the SBC corresponding with described user and/orP-CSCF is in the time of malfunction, to home subscriber server (HSS, HomeSubscriberServer)Send service assignment request (SAR, Server-Assignment-Request) message, with according to described SARMessage realizes disaster tolerance process;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
In such scheme, described according to the definite SBC corresponding with described user of the called request message of described userAnd/or P-CSCF is in the time of malfunction, sends SAR message to HSS, comprising:
According to the called request message of described user, determine record the SBC corresponding with described user and/orThe status information of P-CSCF, and the status information of described SBC and/or P-CSCF is while being malfunction, toHSS sends SAR message;
Or, according to the called request message of described user, determine and do not record the SBC corresponding with described userAnd/or when the status information of P-CSCF, send with described user called to described SBC and/or P-CSCFThe business request information that request message is corresponding; Do not receive when determining that described SBC and/or P-CSCF sendAfter the response message corresponding with described business request information, send SAR message to HSS.
In such scheme, described method also comprises:
Receive described HSS according to the service assignment response of described SAR message generation (SAA,Server-Assignment-Answer) message; Described SAA message is carried success response information, or wrongMistake response message;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In such scheme, described method also comprises:
Determine while carrying described success response information in described SAA message, start timer;
Wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
In such scheme, describedly wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding appearanceCalamity processing, comprising:
When arriving the default time of described timer, and determine while not receiving described user's registration request,Send the called failed message of user, discharge this session;
When within the default time of described timer, while receiving described user's registration request and determine registrationAfter completing, continue the called request of active user.
In the present embodiment, described S-CSCF can record the status information of SBC and/or P-CSCF, so,When described S-CSCF receives after the called request message of user, can first in self, search whether record withThe SBC that described user is corresponding and/or the status information of P-CSCF, when definite self record has and described userCorresponding SBC and/or the status information of P-CSCF, and corresponding SBC and/or the P-CSCF of described userWhen in running order, continue the called request of active user;
When determining that self record has the status information of SBC and/or the P-CSCF corresponding with described user, and instituteState SBC corresponding to user and/or P-CSCF in malfunction, now, can not continue active user calledRequest, need to carry out disaster tolerance process, specifically comprises:
Described S-CSCF sends SAR message to HSS; In described SAR message, carry P-CSCF disaster toleranceMark;
Described HSS receives described SAR message, and according to the P-CSCF disaster tolerance mark in described SAR messageKnow and determine the mobile management entity (MME, MobilityManagementEntity) corresponding with described userAnd/or service universal grouping wireless service (GPRS, GeneralPacketRadioService) support nodeWhether (SGSN, ServingGPRSSupportNode) supports P-CSCF disaster tolerance to identify indicated appearanceCalamity function, the MME that to be determined and described user is corresponding and/or SGSN support P-CSCF disaster tolerance mark instituteWhen the disaster tolerance function of instruction, generate SAA message, and described SAA message is sent to described S-CSCF;Now, described SAA message carries success response information; Described success response information representation MME and/Or SGSN supports described P-CSCF disaster tolerance to identify indicated disaster tolerance function;
When determining MME and/or SGSN that described user is corresponding, described HSS supports P-CSCF disaster tolerance markAfter indicated disaster tolerance function, send IDR message to described MME and/or SGSN; Wherein, described IDRIn message, carry P-CSCF disaster tolerance mark, so, make described MME and/or SGSN according to described IDRThe P-CSCF disaster tolerance mark of carrying in message realizes described user's PDN deexcitation or attachment removal flow process, withMake described user re-establish LTE network and connect and IMS re-injection volume, and after to be registered completing, continued to work asFront called subscriber's request.
In the present embodiment, described MME and/or SGSN are realizing described user's PDN deexcitation or are goingThe flow process of adhering to comprises: inform that subscriber equipment corresponding to described user re-establishes the connection of LTE network, IMSPDN connects and IMS re-injection volume, so, makes described user complete by SBC for subsequent use and/or P-CSCFBecome re-injection volume, to have continued the called request of active user.
In the present embodiment, when described S-CSCF receives after described SAA message, and described SAA messageIn while carrying success response information, start timer, so, complete current called according to described timerRequest.
In the present embodiment, when described S-CSCF does not record the SBC corresponding with described user and/or P-CSCFStatus information, now, described S-CSCF to SBC corresponding to described user and/or P-CSCF send withThe business request information that the called request message of described user is corresponding;
When in Preset Time, described S-CSCF determine do not receive SBC corresponding to described user and/orWhen P-CSCF response message that send, corresponding with described business request information, described S-CSCF determines instituteState SBC corresponding to user and/or P-CSCF in malfunction, now, realize disaster tolerance process, described inS-CSCF sends SAR message to described HSS; Here in described SAR message, carrying P-CSCF, holdsCalamity mark.
In the time that described S-CSCF determines SBC that described user is corresponding and/or P-CSCF in malfunction,The status information of SBC corresponding described user and/or P-CSCF is stored in self.
For realizing said method, the embodiment of the present invention also provides a kind of the first network element, as described in Figure 4, and instituteStating the first network element comprises:
The first receiving element 41, for receiving the called request message of user;
The first transmitting element 42, for determining corresponding with described user according to the called request message of described userSession Border Controller SBC and/or agent call interactive function entity P-CSCF in the time of malfunction, toHome subscriber server HSS sends service assignment request SAR message;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
In such scheme, described the first transmitting element 42, also for according to the called request message of described user,Determine and record the status information of SBC and/or the P-CSCF corresponding with described user, and described SBC and/Or the status information of P-CSCF is while being malfunction, sends SAR message to HSS;
Or, also for according to the called request message of described user, determine do not record corresponding with described userSBC and/or when the status information of P-CSCF, send and described use to described SBC and/or P-CSCFBusiness request information corresponding to the called request message in family; Do not receive described SBC and/or P-CSCF when determiningAfter the service response message corresponding with described business request information sending, send SAR message to HSS.
In such scheme, described the first receiving element 41, also for receiving described HSS according to described SARThe service assignment response SAA message of message generation; Described SAA message is carried success response information, orFalse response messages;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In such scheme, described the first network element also comprises:
Timing unit 43, while carrying described success response information, starts for definite described SAA messageTimer, and wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
In such scheme, described timing unit 43, also for working as the default time of described timer that arrives, andDetermine while not receiving described user's registration request, send the called failed message of user, discharge this session;
Also, for when within the default time of described timer, receive described user's registration request and determineAfter having registered, continue the called request of active user.
Embodiment bis-
Fig. 5 is the realization flow schematic diagram two of embodiment of the present invention disaster recovery method; Described method is applied to HSSSide, as described in Figure 5, described method comprises:
Step 501: receive SAR message; Wherein, described SAR message is that S-CSCF network element is according to userCalled request message generates; In described SAR message, carry P-CSCF disaster tolerance mark.
In the present embodiment, described SAR message is that S-CSCF is receiving the called request message of user, and determinesWhen the primary SBC that described user is corresponding and/or P-CSCF fault, generate.
In such scheme, described method also comprises:
According to described SAR message, determine described in the MME corresponding with described user and/or SGSN supportWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, in described SAA breath, carry success response information; Described in described success response information representation is supportedP-CSCF disaster tolerance identifies indicated disaster tolerance function.
In such scheme, described method also comprises:
According to described SAR message, determine that MME that described user is corresponding and/or SGSN do not support described inWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described method also comprises:
When definite described MME and/or SGSN support described P-CSCF disaster tolerance to identify indicated disaster tolerance meritWhen energy, send IDR message to described MME and/or SGSN, so that described MME and/or SGSNDischarge network corresponding to described user and connect, make described user establishing network connection again;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
In the present embodiment, in described HSS, record MME and/or SGSN and whether support P-CSCF disaster toleranceIdentify the information of indicated disaster tolerance function, so, when described HSS receives after described SAR message,The MME corresponding with described user in self, searched in meeting and/or whether SGSN supports P-CSCF disaster tolerance markKnow indicated disaster tolerance function, in the time determining that support P-CSCF disaster tolerance identifies indicated disaster tolerance function, instituteState HSS and send IDR message to MME and/or SGSN, so, make described MME and/or SGSNRealize described user's PDN deexcitation or attachment removal flow process according to described IDR message, so that described userRe-establish the connection of LTE network, IMSPDN connection and IMS re-injection volume, continued current called useFamily request.
For realizing said method, the embodiment of the present invention also provides a kind of home subscriber server, as Fig. 6 instituteShow, described server comprises:
The second receiving element 61, for receiving SA message; Wherein, described SAR message is S-CSCF netUnit is that service call conversation control function S-CSCF network element generates according to the called request message of user;
Determining unit 62, for determining that described SAR message carries agent call interactive function entityP-CSCF disaster tolerance mark.
In such scheme, described server also comprises:
Message generation unit 63, for according to described SAR message, determines the movement corresponding with described userManagement entity MME and/or service universal grouping wireless serving GPRS support node SGSN support described P-CSCFWhen disaster tolerance identifies indicated disaster tolerance function, generate service assignment response SAA message;
The second transmitting element 64, for being sent to described S-CSCF by described SAA message;
Wherein, in described SAA message, carry success response information; Described success response information representation is supported instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described message generation unit 63, also for root according to described SAR message, determineThe MME that described user is corresponding and/or SGSN do not support described P-CSCF disaster tolerance to identify indicated disaster toleranceWhen function, generate SAA message;
Described the second transmitting element 64, also for being sent to described S-CSCF by described SAA message;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
In such scheme, described the second transmitting element 64, also determines described MME and/or SGSN for working asWhile supporting that described P-CSCF disaster tolerance identifies indicated disaster tolerance function, send out to described MME and/or SGSNSend and insert user data requests IDR message, so that described MME and/or SGSN discharge described user's correspondenceNetwork connect, make described user again establishing network connect;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
Embodiment tri-
The embodiment of the present invention also provides a kind of disaster recovery method, and described method is applied to MME and/or SGSNSide; Described method comprises:
Receive IDR message; In described IDR message, carry P-CSCF disaster tolerance mark;
According to the described P-CSCF disaster tolerance mark in described IDR message, realize corresponding the going of described user and swashLive or attachment removal flow through a network, connect so that subscriber equipment corresponding to described user can re-establish network.
For realizing said method, the embodiment of the present invention also provides a kind of the second network element, described the second network element bagDraw together:
The 3rd receiving element, inserts user data requests IDR message for receiving; In described IDR message, takeBand agent call interactive function entity P-CSCF disaster tolerance mark;
Business realizing unit, for according to the described P-CSCF disaster tolerance mark of described IDR message, realizesThe deexcitation that described user is corresponding or attachment removal flow through a network, so that subscriber equipment corresponding to described user canRe-establishing network connects.
Embodiment tetra-
Fig. 7 is that embodiment of the present invention MME and/or SGSN report whether support P-CSCF disaster tolerance to HSSIdentify the realization flow schematic diagram of indicated disaster tolerance function; As shown in Figure 7, comprising:
Step 701:UE sends LTE to MME and/or SGSN and adheres to request or tracking area (TA) moreNew request message;
Here, described MME and/or SGSN are MME and/or the SGSN that described UE is corresponding.
Step 702: described MME and/or SGSN adhere to request according to LTE or tracking area (TA) upgradesRequest message, generates location update request message, and described in described location update request message is sent toHSS；
Wherein, in described location update request message, carry P-CSCF disaster tolerance mark.
In the present embodiment, the position updating request that described MME and/or SGSN send to described HSS(UpdateLocationRequest) the P-CSCF disaster tolerance of Supported-FeaturesAVP mark in message(as P-CSCFRestoration) is set to 1, so, illustrate described MME and/or SGSN support based onThe P-CSCF disaster tolerance of HSS identifies indicated disaster tolerance function.
Step 703: described HSS generates subscription data request message according to described location update request message,And described subscription data request message is sent to described MME and/or SGSN;
Particularly, whether described HSS identifies according to the P-CSCF disaster tolerance in described location update request messageSet judges whether described MME and/or SGSN support the P-CSCF disaster tolerance mark indication based on HSSThe disaster tolerance function of showing;
In the present embodiment, described HSS is according to Supported-Features in described location update request messageWhether set judges whether described MME and/or SGSN support base to the P-CSCFRestoration of AVPDescribed P-CSCF disaster tolerance in HSS identifies indicated disaster tolerance function, in the present embodiment, and institute's rhemeThe P-CSCFRestoration that puts Supported-FeaturesAVP in update request message is set to 1, so,Illustrate that described MME and/or SGSN support the described P-CSCF disaster tolerance based on HSS to identify indicated appearanceCalamity function.
Step 704: described MME and/or SGSN generate signing number according to described subscription data request messageAccording to response message, and described subscription data response message is sent to described HSS;
Now, described HSS, receiving after described subscription data response message, records described user correspondingMME and/or SGSN support to identify indicated disaster tolerance function based on described P-CSCF disaster tolerance;
Step 705: described HSS sends IDR message to described MME and/or SGSN, so that described inMME and/or SGSN realize the position of described UE and upgrade;
Step 706: the position that described MME and/or SGSN realize described UE according to described IDR messageAfter renewal, send to described UE that LTE adheres to or tracking area (TA) has upgraded message;
So, complete that this LTE adheres to or TA renewal process, described UE can normally be carried out follow-upIMS register flow path.
Embodiment five
Fig. 8 is the schematic diagram of the specific implementation of embodiment of the present invention disaster recovery method; Fig. 9 is the embodiment of the present inventionThe schematic flow sheet of the specific implementation of disaster recovery method;
In the present embodiment, when S-CSCF receives after the called request message of user, and determine self not recordThere is the status information of SBC and/or the P-CSCF1 corresponding with described user, determine and do not record with describedThe primary SBC that user is corresponding and/or the status information of P-CSCF1, now, described S-CSCF need toDescribed SBC and/or P-CSCF1 send the business request information corresponding with the called request message of described user,To determine the status information of described SBC and/or P-CSCF1; As shown in Figure 8 and Figure 9, described method toolBody comprises:
Step 901: described S-CSCF determines that described SBC and/or P-CSCF1 are in malfunction;
Now, described S-CSCF records described primary SBC corresponding to described user and/or P-CSCF1Status information, and be recorded as malfunction.
Step 902: described S-CSCF sends SAR message to HSS; Wherein, in described SAR messageCarry P-CSCF disaster tolerance mark;
In concrete application, described S-CSCF send to SBC and/or P-CSCF business request information itBefore, all can check called subscriber's login state; If called subscriber's login state is registered, andDescribed called subscriber's IMPU is only relevant to an IMPI, and primary SBC corresponding to described called subscriberAnd/or P-CSCF1 is in the time of malfunction, described S-CSCF sends and carries SAR-Flags's to HSSSAR message, wherein, carries P-CSCF disaster tolerance mark and called with described user in described SAR messageThe traffic assignments type (Server-Assignment-Type) that request message is corresponding.
Step 903: described HSS receives after described SAR message, according to the P-CSCF in described SAR messageDisaster tolerance mark determines whether the MME corresponding with described user and/or SGSN support P-CSCF disaster tolerance markIndicated disaster tolerance function, and feed back SAA message according to definite result to described S-CSCF;
In the present embodiment, described HSS searches and institute in the MME of self record and/or the information of SGSNWhether state MME corresponding to user and/or SGSN supports P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In the present embodiment, when determining the MME corresponding with described user and/or SGSN, described HSS supportsWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message, and described SAA message is sent outDeliver to described S-CSCF; Herein, described SAA message carries success response information; Described success responseInformation representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance function;
When described HSS determines that MME and/or the SGSN corresponding with described user do not support P-CSCF disaster toleranceWhile identifying indicated disaster tolerance function, generate SAA message, and described in described SAA message is sent toS-CSCF; Herein, described SAA message carries false response messages; Described false response messages characterizesDo not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
In the present embodiment, described S-CSCF receives after described SAA message, now, and no matter described SAAWhat message was carried is success response information or false response messages, and described S-CSCF all can be by described userLogin state be set to unregistered, so, temporarily interrupt network corresponding to described user and connect, with etc.After described user re-establishes network connection and IMS re-injection volume, continue current called subscriber's request.
In the present embodiment, while carrying success response information in the SAA message that described S-CSCF receives, openMoving local timer, waits for that according to local timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing;Particularly, when in the Preset Time specifying at timer, while not receiving described user's login request message,Ask corresponding calling subscribe to send the called failed message of user to current called subscriber, discharge this session;When in the Preset Time specifying at timer, receive after described user's registration request and definite registration,Continue the called request of active user.
In the present embodiment, in the time carrying false response messages in the SAA message that described S-CSCF receives,Directly ask corresponding calling subscribe to send the called failed message of user to current called subscriber.
Step 904: support when described HSS determines the MME corresponding with described user and/or SGSNP-CSCF disaster tolerance identifies indicated disaster tolerance function, sends out to MME corresponding to described user and/or SGSNSend IDR message, wherein, in described IDR message, carry P-CSCF disaster tolerance mark;
Step 905: the MME that described user is corresponding and/or SGSN receive and carry P-CSCF disaster toleranceAfter the described IDR message of mark, realize attachment removal flow process;
In the present embodiment, the P-CSCF disaster tolerance flow process of described realization based on HSS, comprising:
The MME that described user is corresponding and/or SGSN initiate PDN deexcitation or attachment removal flow process, dischargeNetwork corresponding to described user connects, and subsequently, notifies UE corresponding to described user to re-establish LTE networkConnection, IMSPDN connect and IMS re-injection volume.
Step 906: it is attached that UE corresponding to described user sends LTE to described MME and/or SGSN againRequest, adhere to complete LTE;
Here, in completing LTE and adhering to, also having completed IMSPDN connection, so, is that IMS is heavyRegistration lays the foundation.
Step 907: UE corresponding to described user carries out the heavy registration process of IMS;
Here, described UE in the process of registering, can redefine the SBC corresponding with self and/ or P-CSCF, also referred to as SBC for subsequent use and/or P-CSCF, so, called for completing smoothly this userRequest lays the foundation.
Step 908: after UE corresponding to described user registered, described S-CSCF to current be described inSBC for subsequent use and/or the P-CSCF2 of user's service send business request information, have continued active user's quiltCry request.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or meterCalculation machine program product. Therefore, the present invention can adopt hardware implementation example, implement software example or in conjunction with software andThe form of the embodiment of hardware aspect. And the present invention can adopt one or more and wherein include calculatingThe computer-usable storage medium of machine usable program code (includes but not limited to magnetic disc store and optical storageDevice etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer programFlow chart and/or block diagram describe. Should understand can be by computer program instructions realization flow figure and/or sideFlow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frameClose. Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor orThe processor of other programmable data processing device is to produce a machine, and making can by computer or otherThe instruction that the processor of programming data treatment facility is carried out produces for realizing in flow process or multiple of flow chartThe device of the function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in can vectoring computer or other programmable data processing deviceIn computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produces the manufacture that comprises command device, and this command device is realized at flow process of flow chart or multiple streamThe function of specifying in square frame of journey and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
The above is only the embodiment of the embodiment of the present invention, it should be pointed out that general for the artLogical technical staff, not departing under the prerequisite of embodiment of the present invention principle, can also make some improvementAnd retouching, these improvements and modifications also should be considered as the protection domain of the embodiment of the present invention.
Claims (20)
1. a disaster recovery method, is characterized in that, described method is applied to service call conversation control functionS-CSCF network element side; Described method comprises:
Receive the called request message of user;
Determine the Session Border Controller SBC corresponding with described user according to the called request message of described userAnd/or agent call interactive function entity P-CSCF is in the time of malfunction, to home subscriber server HSSSend service assignment request SAR message, to realize disaster tolerance process according to described SAR message;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
2. method according to claim 1, is characterized in that, described according to the called request of described userMessage determines that the SBC corresponding with described user and/or P-CSCF, in the time of malfunction, send to HSSSAR message, comprising:
According to the called request message of described user, determine record the SBC corresponding with described user and/orThe status information of P-CSCF, and the status information of described SBC and/or P-CSCF is while being malfunction, toHSS sends SAR message;
Or, according to the called request message of described user, determine and do not record the SBC corresponding with described userAnd/or when the status information of P-CSCF, send with described user called to described SBC and/or P-CSCFThe business request information that request message is corresponding; Do not receive when determining that described SBC and/or P-CSCF sendAfter the service response message corresponding with described business request information, send SAR message to HSS.
3. method according to claim 1 and 2, is characterized in that, described method also comprises:
Receive described HSS according to the service assignment response SAA message of described SAR message generation; DescribedSAA message is carried success response information, or false response messages;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
4. method according to claim 3, is characterized in that, described method also comprises:
Determine while carrying described success response information in described SAA message, start timer;
Wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
5. method according to claim 4, is characterized in that, describedly waits for institute according to described timerState P-CSCF disaster tolerance and identify corresponding disaster tolerance processing, comprising:
When arriving the default time of described timer, and determine while not receiving described user's registration request,Send the called failed message of user, discharge this session;
When within the default time of described timer, receive described user's registration request and determine and registeredCheng Hou, continues the called request of active user.
6. a disaster recovery method, is characterized in that, described method is applied to home subscriber server HSS side,Described method comprises:
Receive service assignment request SAR message; Wherein, described SAR message is service call session controlFunction S-CSCF network element generates according to the called request message of user; In described SAR message, carrying agency exhalesBe interactive function entity P-CSCF disaster tolerance mark.
7. method according to claim 6, is characterized in that, described method also comprises:
According to described SAR message, determine mobile management entity MME and/or the clothes corresponding with described userBusiness general packet wireless service support node SGSN supports described P-CSCF disaster tolerance to identify indicated disaster toleranceWhen function, generate service assignment response SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, in described SAA message, carry success response information; Described success response information representation is supported instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
8. method according to claim 6, is characterized in that, described method also comprises:
According to described SAR message, determine that MME that described user is corresponding and/or SGSN do not support described inWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message;
Described SAA message is sent to described S-CSCF;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
9. method according to claim 7, is characterized in that, described method also comprises:
When definite described MME and/or SGSN support described P-CSCF disaster tolerance to identify indicated disaster tolerance meritWhen energy, send insertion user data requests IDR message to described MME and/or SGSN, so that described inMME and/or SGSN discharge network corresponding to described user and connect, and make described user establishing network connection again;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
10. a disaster recovery method, is characterized in that, described method be applied to mobile management entity MME and/Or service universal grouping wireless serving GPRS support node SGSN side; Described method comprises:
Receive and insert user data requests IDR message; In described IDR message, carry agent call interactive functionEntity P-CSCF disaster tolerance mark;
According to the described P-CSCF disaster tolerance mark in described IDR message, realize corresponding the going of described user and swashLive or attachment removal flow through a network, connect so that subscriber equipment corresponding to described user can re-establish network.
11. a kind of first network element, is characterized in that, described the first network element comprises:
The first receiving element, for receiving the called request message of user;
The first transmitting element, for determining the meeting corresponding with described user according to the called request message of described userWords boarder controller SBC and/or agent call interactive function entity P-CSCF are in the time of malfunction, to returningBelong to client server HSS and send service assignment request SAR message;
Wherein, in described SAR message, carry P-CSCF disaster tolerance mark.
12. network elements according to claim 11, is characterized in that, described the first transmitting element, also usesAccording to the called request message of described user, determine record the SBC corresponding with described user and/orThe status information of P-CSCF, and the status information of described SBC and/or P-CSCF is while being malfunction, toHSS sends SAR message;
Or, also for according to the called request message of described user, determine do not record corresponding with described userSBC and/or when the status information of P-CSCF, send and described use to described SBC and/or P-CSCFBusiness request information corresponding to the called request message in family; Do not receive described SBC and/or P-CSCF when determiningAfter the service response message corresponding with described business request information sending, send SAR message to HSS.
13. network elements according to claim 12, is characterized in that, described the first receiving element, also usesIn receiving described HSS according to the service assignment response SAA message of described SAR message generation; Described SAAMessage is carried success response information, or false response messages;
Wherein, described success response information representation supports described P-CSCF disaster tolerance to identify indicated disaster tolerance meritCan; Described false response messages characterizes does not support described P-CSCF disaster tolerance to identify indicated disaster tolerance function.
14. network elements according to claim 13, is characterized in that, described the first network element also comprises:
Timing unit, while carrying described success response information, starts timing for definite described SAA messageDevice, and wait for that according to described timer described P-CSCF disaster tolerance identifies corresponding disaster tolerance processing.
15. network elements according to claim 14, is characterized in that, described timing unit, also for working asArrive the default time of described timer, and determine while not receiving described user's registration request, send and useThe called failed message in family, discharges this session;
Also, for when within the default time of described timer, receive described user's registration request and determineAfter having registered, continue the called request of active user.
16. 1 kinds of home subscriber servers, is characterized in that, described server comprises:
The second receiving element, for receiving service assignment request SAR message; Wherein, described SAR messageThat service call conversation control function S-CSCF network element generates according to the called request message of user;
Determining unit, for determining that described SAR message carries agent call interactive function entityP-CSCF disaster tolerance mark.
17. servers according to claim 16, is characterized in that, described server also comprises:
Message generation unit, for according to described SAR message, determines the mobile management corresponding with described userEntity MME and/or service universal grouping wireless serving GPRS support node SGSN support described P-CSCF disaster toleranceWhile identifying indicated disaster tolerance function, generate service assignment response SAA message;
The second transmitting element, for being sent to described S-CSCF by described SAA message;
Wherein, in described SAA message, carry success response information; Described success response information representation is supported instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
18. servers according to claim 17, is characterized in that, described message generation unit, alsoFor according to described SAR message, determine that MME that described user is corresponding and/or SGSN do not support described inWhen P-CSCF disaster tolerance identifies indicated disaster tolerance function, generate SAA message;
Described the second transmitting element, also for being sent to described S-CSCF by described SAA message;
Wherein, described SAA message is carried false response messages; Described false response messages characterizes does not support instituteState P-CSCF disaster tolerance and identify indicated disaster tolerance function.
19. servers according to claim 17, is characterized in that, described the second transmitting element, alsoDetermine that for working as described MME and/or SGSN support described P-CSCF disaster tolerance to identify indicated disaster tolerance meritWhen energy, send insertion user data requests IDR message to described MME and/or SGSN, so that described inMME and/or SGSN discharge network corresponding to described user and connect, and make described user establishing network connection again;
Wherein, in described IDR message, carry described P-CSCF disaster tolerance mark.
20. a kind of second network element, is characterized in that, described the second network element comprises:
The 3rd receiving element, inserts user data requests IDR message for receiving; In described IDR message, takeBand agent call interactive function entity P-CSCF disaster tolerance mark;
Business realizing unit, for according to the described P-CSCF disaster tolerance mark of described IDR message, realizesThe deexcitation that described user is corresponding or attachment removal flow through a network, so that subscriber equipment corresponding to described user canRe-establishing network connects.
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| PCT/CN2015/075237 WO2016062008A1 (en) | 2014-10-21 | 2015-03-27 | Disaster tolerance method, network element, server and storage medium |
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| CN201410564234.9A CN105592486B (en) | 2014-10-21 | 2014-10-21 | Disaster recovery method, network element and server |
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| CN107070684A (en) * | 2016-12-12 | 2017-08-18 | 国网北京市电力公司 | Disaster tolerance reverse method and device |
| CN108574596A (en) * | 2017-03-14 | 2018-09-25 | 华为技术有限公司 | A kind of disaster recovery method, mobile management entity and home signature user server |
| CN109995726A (en) * | 2017-12-30 | 2019-07-09 | 中国移动通信集团辽宁有限公司 | Proxy Call Session Control Function disaster recovery method, device, equipment and medium |
| CN109995726B (en) * | 2017-12-30 | 2021-08-03 | 中国移动通信集团辽宁有限公司 | Disaster tolerance method, device, equipment and medium for proxy call session control function |
| CN110677826B (en) * | 2018-07-03 | 2022-04-19 | 中国电信股份有限公司 | Disaster recovery method, system, terminal and computer readable storage medium |
| CN110677826A (en) * | 2018-07-03 | 2020-01-10 | 中国电信股份有限公司 | Disaster recovery method, system, terminal and computer readable storage medium |
| CN110830543B (en) * | 2018-08-13 | 2021-10-19 | 华为技术有限公司 | Communication method and communication device |
| CN110830543A (en) * | 2018-08-13 | 2020-02-21 | 华为技术有限公司 | Communication method and communication device |
| US11190602B2 (en) | 2018-08-13 | 2021-11-30 | Huawei Technologies Co., Ltd. | Communication method and communications device |
| WO2020063417A1 (en) * | 2018-09-27 | 2020-04-02 | 中兴通讯股份有限公司 | Ue migration method, apparatus, system, nrf, standby smf, and storage medium |
| CN110121166B (en) * | 2019-05-28 | 2021-09-10 | 中国联合网络通信集团有限公司 | Call establishment method and system |
| CN110121166A (en) * | 2019-05-28 | 2019-08-13 | 中国联合网络通信集团有限公司 | A kind of call method for building up and system |
| CN115766668A (en) * | 2021-09-03 | 2023-03-07 | 中国移动通信集团山东有限公司 | Automatic disaster recovery method, electronic device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105592486B (en) | 2021-01-26 |
| WO2016062008A1 (en) | 2016-04-28 |
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