CN101489245A

CN101489245A - Network disaster tolerance method, terminal and call session control function entity

Info

Publication number: CN101489245A
Application number: CNA200810247028XA
Authority: CN
Inventors: 尼凌飞; 吴越; 陈伟洪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-07-22
Anticipated expiration: 2028-12-31
Also published as: CN101489245B; WO2010075689A1

Abstract

The present invention provides a network disaster tolerance method, a terminal and a calling conversation control functional entity. The method comprises the following steps: detecting whether the calling conversation control functional entity registered presently is failed by the terminal; if the detection result is yes, initiating a registering request to the redundant calling conversation control functional entity; and receiving the registering success information returned from the redundant calling conversation control function. According to the invention, the terminal actively initiates the disaster tolerance procession, thus the independence to other device can be reduced. The disposition and application of telecommunication device are facilitated. As the method can be unitedly customized at the terminal, the invention has larger application superiority especially when the redundant unit is provided by different manufactures.

Description

Network disaster tolerance method, terminal and call conversation control function entity

Technical field

The present invention is about communications network system, especially in regard to a kind of network disaster tolerance method, terminal and call conversation control function entity.

Background technology

At present, nature remains the catastrophic event that can't prevent or avoid some mankind, for example, and earthquake, tsunami etc.After these catastrophic event take place, need the fast as far as possible recovery of communication, to shorten the disaster relief time.Most operators are in demand newly-built, that all proposed network disaster tolerance when upgrading the communication network or the network rebuilding, the telecommunication apparatus of redundancy is distributed in different geographical office points, when a geographical office point runs into the disaster affairs, provide service by the telecommunication apparatus of other geographical office point.

IP Multimedia System (IMS:IP Multimedia Subsystem) is based on an independent sessions territory of conversation control function entity (the CSCF:CALL Session Control Function) control of Session Initiation Protocol.In order to take place under the situation of disaster, make the recovery business that core side telecommunication apparatus CSCF can be fast as far as possible, this IMS system provides the mode of being made of geographic redundancy the telecommunication apparatus CSCF of redundancy, to satisfy the disaster tolerance demand.

At present, the control of CSCF that can be by network side realizes the scene graph of disaster tolerance.The inventor finds that in realizing process of the present invention the defective of the prior art is: need carry out special processing at network side, the network equipment is had specific (special) requirements, the user data that obtains in the registration process can't recover, and inapplicable and roamer's scene.

Summary of the invention

The purpose of the embodiment of the invention is to provide a kind of network disaster tolerance method, terminal and call conversation control function entity.The embodiment of the invention is initiatively initiated disaster tolerance by terminal and is handled, like this, owing to can especially when providing redundance unit, have bigger applicating superiority in the unified customization of terminal by different vendor.

For achieving the above object, the embodiment of the invention provides a kind of network disaster tolerance method, and this method comprises: whether the call conversation control function entity that terminal detects current registration breaks down; If testing result is for being, then to the call conversation control function entity initiation register requirement of redundancy; Receive the message that succeeds in registration that the call conversation control function entity of described redundancy returns.

For achieving the above object, the embodiment of the invention provides a kind of network disaster tolerance method, and when terminal detects the fault recovery of the call conversation control function entity that breaks down, and the call conversation control function entity that breaks down is preference faciltiy, and this method comprises:

Described call conversation control function entity receives the request of refunding that described terminal sends, and the described request of refunding comprises user ID and refunds sign; Receive the heavy register requirement that described terminal sends; According to described heavy register requirement from described home domain client server download user data; Return the message that succeeds in registration after downloading successfully to described terminal.

The request of refunding that the call session functions entity that reception is broken down sends, the described request of refunding comprises user ID and refunds sign; Send de-registration request to the home domain client server according to the described request of refunding, with the log-on message of the described terminal of nullifying registered call conversation control function entity; Receive the cancellation success response message that described home domain client server returns; Send redirect response message to the call conversation control function entity that breaks down, described redirect response message comprises the indication of the network device registration that described terminal gravity treatment is different.

For achieving the above object, the embodiment of the invention provides a kind of terminal, and this terminal comprises:

Whether the call conversation control function entity that first detecting unit, described first detecting unit are used to detect current registration breaks down;

First request transmitting unit, when the testing result of described first detecting unit for being that then described first request transmitting unit is used for initiating register requirement to the call conversation control function entity of redundancy;

First receiving element, described first receiving element are used to receive the message that succeeds in registration that the call conversation control function entity of described redundancy returns.

For achieving the above object, the embodiment of the invention provides a kind of call conversation control function entity, and this call conversation control function entity comprises:

The 4th receiving element, described the 4th receiving element are used for the request of refunding that receiving terminal sends, and the described request of refunding comprises user ID and refunds sign;

The 5th receiving element, described the 5th receiving element are used to receive the heavy register requirement that described terminal sends;

User data acquiring unit, described user data acquiring unit are used for according to described heavy register requirement from described home domain client server download user data;

First transmitting element, download successfully after, described first transmitting element is used for sending and succeeds in registration message to described terminal.

The 6th receiving element is used to receive the request of refunding of the call session functions entity transmission of breaking down, and the described request of refunding comprises user ID and refunds sign;

De-registration request transmitting element, described de-registration request transmitting element are used for sending de-registration request to the home domain client server according to the described request of refunding, with the log-on message of the described terminal of nullifying registered call conversation control function entity;

The 7th receiving element is used to receive the cancellation success response message that described home domain client server returns;

Second transmitting element is used to send redirect response message to the call conversation control function entity that breaks down, and described redirect response message comprises the indication of the network device registration that described terminal gravity treatment is different.

The beneficial effect of the embodiment of the invention is, initiatively initiates disaster tolerance by terminal and handles, and like this, forms at the CSCF by different vendor under the situation of redundant system, can reduce the dependence to miscellaneous equipment, helps the deployment and the application of telecommunication apparatus; Owing to can especially when providing redundance unit, have bigger applicating superiority in the unified customization of terminal by different vendor.

Description of drawings

Accompanying drawing described herein is used to provide the further understanding to the embodiment of the invention, constitutes the application's a part, does not constitute the qualification to the embodiment of the invention.In the accompanying drawings:

Fig. 1 is the network disaster tolerance method flow chart of the embodiment of the invention 1;

Fig. 2 is the network disaster tolerance method flow chart of the embodiment of the invention 2;

Fig. 3 is a standard register flow path schematic diagram in the embodiment of the invention 2;

Fig. 4 is the network disaster tolerance method flow chart of the embodiment of the invention 3;

Fig. 5 sets up call flow diagram in the embodiment of the invention 3;

Fig. 6 is the network disaster tolerance method flow chart of the embodiment of the invention 4;

Fig. 7 refunds one of process chart after the network equipment failure of the current registration of the embodiment of the invention 5 network disaster tolerance methods is recovered;

Fig. 8 refunds two of process chart after the network equipment failure of the current registration of network disaster tolerance method in the embodiment of the invention 5 is recovered;

Fig. 9 is the terminal structure schematic diagram of the embodiment of the invention 6;

Figure 10 is the first detecting unit structural representation of the terminal of the embodiment of the invention 7;

Figure 11 is the first detecting unit structural representation of the terminal of the embodiment of the invention 7;

Figure 12 is the first detecting unit structural representation of the terminal of the embodiment of the invention 7;

Figure 13 is the terminal structure schematic diagram of the embodiment of the invention 8;

Figure 14 is the call conversation control function entity structural representation of the embodiment of the invention 9;

Figure 15 is a call conversation control function entity structural representation of the embodiment of the invention 10.

Embodiment

For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.

Embodiment 1

The embodiment of the invention provides a kind of network disaster tolerance method, and as shown in Figure 1, this method comprises: the call conversation control function entity that terminal detects current registration whether break down (seeing step 101); If testing result is for being, then to the call conversation control function entity initiation register requirement (seeing step 102) of redundancy; Receive the message that succeeds in registration (seeing step 103) that this redundant call conversation control function entity returns.

In the present embodiment, this call conversation control function entity is the call conversation control function entity in IMS field.

After receiving the message of returning that succeeds in registration when this terminal, the address of call conversation control function entity (CSCF:CALL Session Control Function) that should redundancy can be saved as professional first-selected address, make a call with address by this redundant CSCF entity.

In the present embodiment, after this redundant CSCF entity receives this register requirement, can adopt existing any way to register, return the message that succeeds in registration after succeeding in registration to this terminal.

In the present embodiment, register requirement is initiated to this redundant CSCF entity in the address of this terminal this redundant CSCF entity that can obtain according to pre-configured address or from address server.

By the foregoing description as can be known, when the CSCF entity that detects current registration when terminal breaks down, would subscribe to other redundant CSCF entity, make a call by this redundant CSCF entity.

Embodiment 2

Below in conjunction with accompanying drawing, with the CSCF entity is that CSCF in the IMS field is that example is elaborated.As shown in Figure 2, the CSCF of current registration is CSCF1, and redundant CSCF entity is CSCF2.

Fig. 2 is the network disaster tolerance method flow chart of the embodiment of the invention 2.As shown in Figure 2, this network disaster tolerance method comprises:

Step 201, terminal makes a call by the call conversation control function entity CSCF1 of Invite message to current registration;

Step 202, whether this terminal judges receives response in Preset Time; If judged result determines then that for not the described CSCF entity of current registration breaks down;

Step 203, this terminal is according to the CSCF physical address of pre-configured redundancy or from server, for example, register requirement is initiated to redundant call conversation control function entity CSCF2 in the address of this redundant CSCF entity that obtains from domain name server system (DNS:Domain Name System); Wherein this register requirement adopts Register message;

Step 204, this CSCF2 registers after receiving the register requirement of this terminal transmission, and carries out between the home domain client server HSS alternately, from this home domain client server HSS download user data;

Step 205, after succeeding in registration, the address setting of the CSCF entity CSCF2 that this terminal should redundancy is professional first-selected address, makes this terminal utilize this redundant CSCF entity CSCF2 to make a call.

In addition, in step 201 and 202, also can be in the following way: this terminal UE can periodically send the CSCF entity CSCF1 of heartbeat signal to this current registration; When the number of times that sends this heartbeat signal surpasses preset value, also do not receive response, determine that then this CSCF entity of current registration breaks down.

In the present embodiment, in step 204, this CSCF2 can adopt existing any register flow path to register.Fig. 3 is the register flow path of this CSCF2 in the step 204, wherein, with this CSCF2 from being divided into proxy CSCF (P-CSCF), inquiry CSCF (I-CSCF) and serving CSCF (S-CSCF) in logic.Below be that example describes with register flow path shown in Figure 3.

Step 301,302, this proxy CSCF (P-CSCF) receive the register requirement Register that this terminal sends, and comprise information such as user ID, request unified resource indications, terminal address, registration time length in this register requirement; Should (P-CSCF) inquire about CSCF (I-CSCF:Interrogation-CSCF) address, and transmit this register requirement Register to this I-CSCF according to the request unified resource indications in this register requirement (Request-URI:Request-Uniform Resource Identifier) information acquisition.

Step 303,304, this inquiry CSCF (I-CSCF) inquiry home domain client server HSS is to obtain serving CSCF (S-CSCF:Serving-CSCF) capability set that the user contracts;

In the present embodiment, this I-CSCF is by sending the S-CSCF capability set that user-authorization-request (UAR:User-Authoriza-tion-Request) information query user contracts; This home domain client server HSS returns Query Result to this I-CSCF by user-authorization-answer (UAA:User-Authorization-Answer) message.

Step 305, this I-CSCF selects one of them S-CSCF from the S-CSCF capability set that obtains, and transmits register requirement Register to this S-CSCF;

Step 306,307, this S-CSCF of selection in this home domain client server HSS inquiry, obtains user's authorization data according to the user ID among the register requirement Register; Wherein, this authorization data can comprise information such as random challenge, desired result and network authentication token;

In the present embodiment, this S-CSCF is by sending multimedia authentication request (MAR:Muthentica-tion-Request) information query user's authorization data; This home domain client server HSS returns Query Result to this S-CSCF by multimedia authentication responses (MAA:Muthentication-Answer) message.

Step 308,309,310, this S-CSCF returns the authentication challenge responses and gives this terminal UE, indicate this terminal UE to add authentication information, the authentication information that this user adds can comprise the Authentication Response 401 of this terminal according to the shared cipher key calculation of random challenge of receiving and terminal preservation itself;

Step 311 is to 315, with step 301 to 305 similar, send this register requirement Register to this S-CSCF; Comprise the authentication information that this terminal UE adds in this register requirement;

Step 316,317, this S-CSCF obtains this authentication information from this register requirement, and the authorization data of storing with this locality compares, if the comparative result unanimity then by authentication, like this, can be downloaded user data from this HSS;

In the present embodiment, this S-CSCF goes up the inquiring user data by server-assignment request (SAR:Server-Assignment-Request) message from this HSS; This HSS replys (SAA:Server-Assignment-Answer) message by server-assignment and returns this user data to this S-CSCF.

Step 318,319,320, this S-CSCF returns success response and gives this terminal UE, succeeds in registration.In the present embodiment, this response message that succeeds in registration can be 200 response messages.

By the foregoing description as can be known, when this terminal when the CSCF of current registration entity makes a call, in Preset Time, do not receive response or also do not receive response when the periodic heartbeat signal surpasses preset value by sending, this terminal determines that the CSCF entity of this current registration breaks down, then the address according to the CSCF entity of the redundancy that prestores redundant CSCF physical address or obtain from server sends a request for registration to redundant CSCF entity, after succeeding in registration, can make a call according to the address of this redundant CSCF entity, after making a call, this redundant CSCF entity can carry out normal process to calling according to user data, comprises safety inspection, scope check, route, business etc. is provided.

Embodiment 3

Be elaborated below in conjunction with accompanying drawing.

Fig. 4 is the network disaster tolerance method flow chart of the embodiment of the invention 3.As shown in Figure 4, this network disaster tolerance method comprises:

Step 401, when the call session functions entity CSCF1 of the current registration of this terminal breaks down, the call session functions entity CSCF2 that calls out by redundancy is routed to this terminal equipment UE; Wherein, should call out by Invite message route;

Step 402, whether the address of this CSCF2 of the calling that this terminal UE judgement receives is consistent with the address of the CSCF1 of current registration, and judged result is that the address is inconsistent;

Step 403 is set up and is called out;

Step 404 has judged whether further that behind end of calling other session exists;

Step 405 if judged result does not exist for there being other session, is then initiated register requirement Register to this CSCF2.Like this, can avoid the interruption of other session.

Step 406, this CSCF2 receives the register requirement Register that this terminal sends, and makes this CSCF2 from home domain client server HSS download user data; This register flow path and register flow path shown in Figure 3 are similar, repeat no more herein;

Step 407, after succeeding in registration, this terminal is professional first-selected address with the address setting of this CSCF2, makes this terminal utilize this CSCF2 to make a call.

In the present embodiment, in step 403, can adopt existing any call setup flow process, below be that example describes with flow process shown in Figure 5, as shown in Figure 5, comprising:

Step 501,502, terminal use UE-A off-hook call, the path of setting up according to registration sends to Calling Side S-CSCF with this call request Invite message through Calling Side P-CSCF;

Step 503, this Calling Side S-CSCF obtains the inquiry CSCF (I-CSCF) of called place home domain according to called address, this call request is issued the I-CSCF of callee side ownership;

Step 504,505, this callee side I-CSCF obtains the serving CSCF (S-CSCF) of user's registration according to CSI called subscriber identification inquiry home domain client server HSS from this HSS;

In the present embodiment, this I-CSCF can inquire about by location information request (LIR:Location-Info-Request) message, and this HSS can return Query Result by location information answer (LIA:Location-Info-Answer) message;

Step 506, this callee side I-CSCF is sent to this call request this S-CSCF of acquisition;

Step 507,508, the path of setting up according to registration routes the call to terminal called UE-B;

Step 509 after this terminal called UE-B ring, responds this calling terminal UE-A along the path transmission 180 of call setup for the first time to 514;

Step 515 behind this terminal called UE-B user off-hook, responds this calling terminal UE-A along the path transmission 200 of call setup for the first time to 520;

Step 521 is to 526, and this calling terminal UE-A returns affirmation (ACK:ACKnowledgment) message to terminal called UE-B after receiving this 200 response, and conversation is set up.

By the foregoing description as can be known, when the CSCF1 of this current registration breaks down, calling sends to this terminal by the CSCF2 route of redundancy, when the address of the CSCF entity of the current registration of the address of this CSCF2 of this terminal judges and storage inconsistent, then send a request for registration to CSCF2, after succeeding in registration, can make a call according to the address of this CSCF2, after making a call, this CSCF2 can carry out normal process to calling according to user data, comprises safety inspection, scope check, route, business etc. is provided.

Embodiment 4

In the network disaster tolerance method of embodiment 1, embodiment 2 and embodiment 3, if after terminal detects the call conversation control function entity fault recovery of this current registration of breaking down, but the terminal indication network is refunded processing.

The present invention also provides a kind of network disaster tolerance method, and when terminal detected the fault recovery of the current call conversation control function entity CSCF1 that breaks down, as shown in Figure 6, this method comprised:

The request of refunding that call conversation control function entity CSCF1 receiving terminal sends, this request of refunding comprises user ID and refunds sign (seeing step 601); Receive the heavy register requirement (seeing step 604) that this terminal sends; According to this heavy register requirement from this home domain client server HSS download user data (seeing step 605); Return the message that succeeds in registration after downloading successfully to this terminal (seeing step 606).

In the present embodiment, this CSCF1 is a preferred equipment.

In the present embodiment, as shown in Figure 6, before step 604, also comprise: obtain subscription authentication data (seeing step 602) from home domain client server HSS according to this request of refunding; Send the authentication Indication message to this terminal, this authentication Indication message comprises this subscription authentication data (seeing step 603).

In step 602, this basis is refunded request and is obtained the subscription authentication data from the home domain client server, can be in the following way: refund the service available list of devices that request is disposed when home domain client server HSS obtains this terminal unit contractual according to this, to select preferential service available equipment, i.e. this CSCF1; After refunding the local no user data of request detection according to this, HSS obtains the subscription authentication data from this home domain client server.

In step 602, this basis is refunded request and is obtained the subscription authentication data from the home domain client server, can be in the following way:

Refund the registered call conversation control function entity of this terminal of acquisition request according to this; This request of refunding is forwarded to this registered call conversation control function entity; Receive the redirect response message that this registered call conversation control function entity returns, described redirect response message comprises the indication of this terminal gravity treatment call conversation control function entity registration; Obtain this subscription authentication data according to this redirect response message from this home domain client server.

By the foregoing description as can be known, detect the CSCF1 fault recovery of this current registration of breaking down when terminal after, but this terminal indication network is refunded processing.

Embodiment 5

In the network disaster tolerance method of embodiment 1, embodiment 2 and embodiment 3, if after terminal detects the CSCF1 fault recovery of this current registration of breaking down, but the terminal indication network is refunded processing.

Below with reference to Fig. 7, Fig. 8, with the call conversation control function entity CSCF1 of this current registration is that preferred equipment is that example describes.As shown in Figure 7, can adopt following steps:

Step 701, after terminal UE detects the conversation control function entity CSCF1 fault recovery of this current registration, when the Idle state transmission is heavily registered, initiatively send the request of refunding to deserving CSCF1, in the present embodiment, can adopt register requirement Register request, in this request, carry and refund sign and this user ID, but be not limited thereto, also can adopt other.

Step 702, this CSCF1 obtains to refund sign from the Register request;

Step 703,704, this CSCF1 is according to user ID and refund the sign indication, go up the provided service equipment tabulation of disposing when inquiring user is contracted from home domain client server HSS, the CSCF1 of this current registration searches to select from this tabulation can provide service equipment (configuration be preferred equipment), is this CSCF1;

In the present embodiment, this CSCF1 sends query messages, for example, can go up the provided service equipment tabulation of disposing when inquiring user is contracted from home domain client server HSS by sending user-authorization-request (UAR) message, and receive the response message that this HSS returns, for example, user-authorization-answer (UAA) message, the provided service equipment tabulation of configuration when contracting to obtain the user, but be not limited thereto, also can adopt other.

Step 705, step 706, this CSCF1 detects local no user data, judges to be registered as initial registration, and HSS obtains the subscription authentication data alternately with the home domain client server;

In the present embodiment, this CSCF1 can send authentication request, for example, multimedia authentication request (MAR) message is to home domain client server HSS, this HSS is by response message, and for example, multimedia authentication responses (MAA) message is sent to this CSCF1 with the subscription authentication data, but be not limited thereto, also can adopt other.

Step 707, this CSCF1 returns the authentication Indication message to this terminal UE, and this authentication Indication message comprises this subscription authentication data; In the present embodiment, this authentication Indication message can adopt 401 response messages, to indicate this terminal UE authentication;

Step 708,709, this home domain client server HSS finds that according to the subscription authentication data of obtaining the CSCF entity of this endpoint registration changes, promptly according to the subscription authentication data obtained with CSCF1 as effective and safe equipment, relatively the host name of this CSCF1 is different with the conversation control function entity CSCF2 host name and the address of the registered redundancy of user with the address, therefore, send de-registration request to original registered CSCF2; After this CSCF2 receives this de-registration request, the local user data of preserving of deletion, and the feedback cancellation response message is to this HSS.

In the present embodiment, this de-registration request adopts nullifies termination request (RTR) message, and this cancellation response message employing is nullified termination and replied (RTA) message, but is not limited thereto, and also can adopt other.

Wherein, this step 708 and 709 also can be finished simultaneously with step 707, might not be after step 707.

After step 710, this terminal UE receive 401 response messages of this CSCF1 transmission, initiate heavy register requirement to the CSCF of this current registration entity; Wherein, this register flow path repeats no more as shown in Figure 3 herein.

Like this, after the CSCF1 of this current registration fault recovery, can realize that redundant CSCF2 refunds the CSCF1 of current registration by above-mentioned steps.

As shown in Figure 8, also can refund processing in the following way.

As shown in Figure 8, can adopt following steps:

Step 801, after terminal UE detects the Call Control Functional Entity CSCF1 fault recovery of current registration, when the Idle state transmission is heavily registered, initiatively send the request of refunding to this CSCF1, in the present embodiment, this request of refunding can be adopted register requirement Register request, carries in this request and refunds sign and user ID, but be not limited thereto, also can adopt other message.

Step 802,803, this CSCF1 is mutual with home domain client server HSS according to this request, inquire about this terminal UE place server, promptly the server of being registered obtains the registered Call Control Functional Entity of this terminal UE (i.e. Rong Yu Call Control Functional Entity CSCF2);

In the present embodiment, this CSCF1 is mutual according to 3GPP29.228 standard and this home domain client server HSS, promptly sends query requests to this HSS, receives the message that this HSS returns; Wherein, this query requests can adopt UAR message, and this response message can adopt UAA message, but is not limited thereto, and also can adopt other message;

Step 804, this CSCF1 is transmitted to CSCF2 according to Query Result with the Register request;

Step 805, this CSCF2 gets access to from this Register request and refunds sign;

Step 806,807, this CSC2 refunds sign according to this and indicates this HSS to nullify the log-on message of this terminal at this CSCF2 by de-registration request message, and this HSS nullifies the log-on message of this terminal of this CSCF2, and returns to nullify and finish message to this this CSCF2;

In the present embodiment, this de-registration request message can adopt SAR message; Message is finished in this cancellation can adopt SAA message, but is not limited thereto, and also can adopt other message;

Step 808, after cancellation was finished, this CSCF2 returned redirect response message and gives this CSCF1; In the present embodiment, this redirect response message can adopt 3XX, and 305 message for example, this redirect response message can comprise the information such as indication of this terminal gravity treatment call conversation control function entity registration;

Step 809,810, after this CSCF1 receives this redirect response, regain the provided service equipment tabulation of disposing when the user contracts alternately according to 3GPP24.229 standard and home domain client server HSS, therefrom select first-selection service equipment (configuration be preferred equipment), i.e. this CSCF1 can be provided;

In the present embodiment, this CSCF1 can inquire about by sending UAR message; This HSS tabulates by UAA message Returning equipment, but is not limited thereto, and also can adopt other message;

Step 811,812, this CSCF1 detects local user data of no use, handles as initial registration, and HSS obtains the subscription authentication data alternately with the home domain client server; In the present embodiment, this CSCF1 sends MAR message to home domain client server HSS, and this HSS is sent to this CSCF1 by MAA message with user data, but is not limited thereto, and also can adopt other message;

Step 813, this CSCF1 returns the authentication Indication message to this terminal UE, and this authentication Indication message comprises this subscription authentication data; In the present embodiment, this authentication Indication message can adopt 401 response messages, indicating this terminal UE authentication, but is not limited thereto, and also can adopt other message;

After step 814, this terminal UE receive 401 response messages of this CSCF1 transmission, initiate heavy register requirement to this CSCF1; Wherein, register flow path repeats no more as shown in Figure 3 herein.

Like this, after the Call Control Functional Entity CSCF1 of this current registration fault recovery, can realize that redundant Call Control Functional Entity CSCF2 refunds the Call Control Functional Entity CSCF1 of current registration by above-mentioned steps.

By the foregoing description as can be known, the present invention initiatively initiates disaster tolerance by terminal and handles, and can reduce the dependence to miscellaneous equipment like this, helps the deployment and the application of telecommunication apparatus; Owing to can especially when providing redundance unit, have bigger applicating superiority in the unified customization of terminal by different vendor.In addition, detect the Call Control Functional Entity CSCF1 fault recovery of this current registration of breaking down when terminal after, but this terminal indication network is refunded processing.

Embodiment 6

The embodiment of the invention provides a kind of terminal, and as shown in Figure 9, this terminal comprises first detecting unit 901, first request transmitting unit 902 and first receiving element 903; Wherein, whether this first detecting unit 901 Call Control Functional Entity of being used to detect current registration breaks down; When the testing result of this first detecting unit 901 for being that then this first request transmitting unit 902 is used for initiating register requirement to the Call Control Functional Entity of redundancy; This first receiving element 903 is used to receive the message that succeeds in registration that this redundant Call Control Functional Entity returns.

Like this, receive the message of returning that succeeds in registration when this terminal after, the address of Call Control Functional Entity that should redundancy can be saved as professional first-selected address.

Below adopt CSCF1 to represent the Call Control Functional Entity of current registration, adopt CSCF2 to represent redundant Call Control Functional Entity.

In the present embodiment, this terminal also comprises unit 904 and memory cell 905 is set, and wherein, after succeeding in registration, this is provided with unit 904 and is used for the address setting of this CSCF2 is address at first that this memory cell 904 is used to store the address of this CSCF2.After the user redials, can make a call to this CSCF2 according to the address of this CSCF2 that stores.

In the present embodiment, this first request transmitting unit 902 can be initiated register requirement to the CSCF of redundancy entity according to the address of this locality configuration or from the address that server obtains.

By the foregoing description as can be known, in the IMS field, when the Call Control Functional Entity that detects current registration when terminal breaks down, would subscribe to other redundant Call Control Functional Entity, make a call by this redundant Call Control Functional Entity.

Embodiment 7

The embodiment of the invention provides a kind of terminal, and as shown in Figure 9, this terminal comprises first detecting unit 901, first request transmitting unit 902, first receiving element 903, unit 904 and memory cell 905 are set, and its effect is similar to Example 6, repeats no more herein.

In addition, as shown in figure 10, this first detecting unit 901 can comprise first calling unit 1001, first judging unit 1002 and the first fault determining unit 1003; Wherein, this first calling unit 1001 is used for making a call to CSCF1; This first judging unit 1002 is used to judge whether receive response in Preset Time; If the judged result of this first judging unit 1002 is not, then this first fault determining unit 1003 is used for determining that this CSCF1 breaks down.

Like this, when this terminal initiatively makes a call when determining that CSCF1 breaks down, this first request transmitting unit 1002 can be according to the CSCF2 address of this locality configuration or from server, for example, obtain the CSCF2 address from domain name server system (DNS:Domain Name System) inquiry and send register requirement.In addition, the address of this CSCF2 also can adopt existing alternate manner to obtain.

By the foregoing description as can be known, when this terminal when CSCF1 makes a call, in Preset Time, do not receive response, then this terminal determines that this CSCF1 breaks down, then the address according to the CSCF2 that prestores or obtain from server sends a request for registration to CSCF2, after succeeding in registration, can make a call according to the address of this CSCF2.Wherein, the reciprocal process of this terminal and CSCF1 and CSCF2 and Fig. 2, process shown in Figure 3 are similar, repeat no more herein.

In addition, this first detecting unit 901 can also following mode be realized:

As shown in Figure 9, this first detecting unit 901 can comprise: signal transmitting unit 1101, second judging unit 1102 and the second fault determining unit 1103; Wherein, this signal transmitting unit 1101 is used for periodically sending the CSCF entity of heartbeat signal to this current registration; This second judging unit 1102 is used to judge in the preset times that sends this heartbeat signal whether receive response; If the judged result of this second judging unit 1102 is not, then this second fault determining unit 1103 determines that this CSCF entity of current registrations breaks down.

By the foregoing description as can be known, when this terminal sends periodic heartbeat signal by this locality, do not receive response predetermined the transmission in the number of times, then this terminal determines that this CSCF1 breaks down, then the address according to the CSCF2 that prestores or obtain from server sends a request for registration to CSCF1, after succeeding in registration, can make a call according to the address of this CSCF2.Wherein, the reciprocal process of this terminal and CSCF1, CSCF2 and Fig. 2, process shown in Figure 3 are similar, repeat no more herein.

In addition, as shown in figure 12, this first detecting unit 1101 comprises calls out receiving element 1201, the 3rd judging unit 1202, the 3rd fault determining unit 1203; Wherein, this calling receiving element 1201 is used to receive the calling from the CSCF2 route of network side; This second judging unit 1202 is used to judge whether the address of this CSCF2 is consistent with the address of CSCF1; If the judged result of the 3rd judging unit 1202 is that the address is inconsistent, then the 3rd fault determining unit 1203 is used for determining that this CSCF1 breaks down.

By the foregoing description as can be known, when the Call Control Functional Entity of this current registration breaks down, calling sends to this terminal by the Call Control Functional Entity route of redundancy, when this terminal receives the calling of this redundant Call Control Functional Entity transmission, whether the address that can judge the Call Control Functional Entity that this is redundant is consistent with the address of the Call Control Functional Entity of the current registration of storage, if judged result is inconsistent, confirm that then the Call Control Functional Entity of this current registration breaks down.

Consider on some terminals and also may have other session, then determine that in this terminal this CSCF1 breaks down, and send register requirement to this CSCF2 in this first request transmitting unit 902, this terminal need judge whether that also other session exists, if do not exist, then sending register requirement.

Like this, this terminal also comprises the 4th judging unit (not shown), and behind end of calling, the 4th judging unit is used to judge whether that other session exists, if judged result does not exist for there being other session, then this first request transmitting unit 902 is used for initiating register requirement to this CSCF2.

By the foregoing description as can be known, the calling that this terminal receives by detection from the address of CSCF entity of network side whether whether consistent with the address of the Call Control Functional Entity of current registration, when detecting address change, can initiatively initiate register requirement to the Call Control Functional Entity of redundancy.The process that this terminal and CSCF1, CSCF2 are mutual and Fig. 4, process shown in Figure 5 are similar, repeat no more herein.

Embodiment 8

The embodiment of the invention provides a kind of terminal, and the formation of this terminal can be as the formation of embodiment 5,6.In addition, after the fault recovery of this CSCF1, this terminal also can be indicated and be refunded processing.

Like this, as shown in figure 13, this terminal also can comprise second detecting unit 1301, second request transmitting unit 1302, second receiving element 1303, the 3rd request transmitting unit 1304 and the 3rd receiving element 1305; Wherein, whether this second detecting unit 1301 fault of being used to detect this CSCF1 is recovered; When the testing result of this second detecting unit 1301 for being, then this second request transmitting unit 1302 is used for initiating the request of refunding to this CSCF1, and this request of refunding comprises refunds sign and user ID, can adopt the Register request, but be not limited thereto, also can adopt other message; This second receiving element 1303 is used to receive the authentication Indication message of this terminal authentication of indication that this CSCF1 returns, and this authentication Indication message comprises the subscription authentication data, can adopt 401 response messages, but be not limited thereto, and also can adopt other message; The 3rd request transmitting unit 1304 is used for initiating heavy register requirement according to this authentication Indication message to this CSCF1; The 3rd receiving element 1305 is used to receive the message that succeeds in registration that this CSCF1 returns.

In the present embodiment, this second detecting unit 1301 can detect the Call Control Functional Entity fault recovery of this current registration at one's leisure by this terminal by certain secondary response of attempting professional registration (registration) or the local periodic heartbeat signal that disposes.

From the above, after this terminal detects the Call Control Functional Entity fault recovery of this current registration by certain secondary response of attempting professional registration (registration) or the local periodic heartbeat signal that disposes at one's leisure, this terminal can be by sending the request of refunding, for example, carry during the grade of service (registration) is asked to refund and indicate that initiatively indication network is refunded processing.The reciprocal process of this terminal and CSCF entity is shown in Fig. 7,8.

Embodiment 9

The embodiment of the invention provides a kind of call conversation control function entity, and this call conversation control function entity is the Call Control Functional Entity CSCF of current registration, CSCF1 as shown in Figure 7.Detect the call conversation control function entity fault recovery of this current registration when terminal after, send and refund request to this Call Control Functional Entity.

As shown in figure 14, this Call Control Functional Entity comprises the 4th receiving element 1401,1414 the 5th receiving elements 1404, user data acquiring unit 1405 and first transmitting element 1406; Wherein,

The 4th receiving element 1401 is used for the request of refunding that receiving terminal sends, and this request of refunding comprises user ID and refund sign that this request of refunding can be adopted the Register request, but is not limited thereto, and also can adopt other message; The 5th receiving element 1405 is used to receive the heavy register requirement that this terminal sends; This user data acquiring unit 1405 is used for according to this heavy register requirement from these home domain client server download user data; After downloading successfully, this first transmitting element 1406 is used for transmission and succeeds in registration message to this terminal.

In the present embodiment, this authorization data acquiring unit 1402 obtains the dual mode that the subscription authentication data can adopt embodiment 4.

In addition, this Call Control Functional Entity also comprises: authorization data acquiring unit 1402, authentication indication transmitting element 1403.Wherein, this authorization data acquiring unit 1402 is used for obtaining the subscription authentication data according to this request of refunding from the home domain client server; This authentication indication transmitting element 1403 is used to send the authentication Indication message to this terminal, and this authentication Indication message can adopt 401 response messages, and this authentication Indication message comprises this subscription authentication data.

In the present embodiment, the course of work of this conversation control function entity can repeat no more shown in Fig. 7,10 herein.

By the foregoing description as can be known, after the CSCF of this current registration entity fault is recovered, also can refund processing by the indication of this terminal.

Embodiment 10

The embodiment of the invention also provides a kind of call conversation control function entity, and this call conversation control function entity is redundant Call Control Functional Entity CSCF, CSCF2 as shown in Figure 8.

As shown in figure 15, this call conversation control function entity comprises the 6th receiving element 1501, de-registration request transmitting element 1502, the 7th receiving element 1503 and second transmitting element 1504; Wherein,

The 6th receiving element 1501 is used to receive the request of refunding of the call session functions entity CSCF1 transmission of breaking down, and this request of refunding comprises user ID and refunds sign; This de-registration request transmitting element 1502 is used for sending de-registration request to home domain client server HSS according to this request of refunding, with the log-on message of this terminal of nullifying registered call conversation control function entity CSCF2; The 7th receiving element 1503 is used to receive the cancellation success response message that this home domain client server HSS returns; This second transmitting element 1504 is used to send redirect response message to the call conversation control function entity CSCF1 that breaks down, and this redirect response message comprises the indication of the call conversation control function entity registration that this terminal gravity treatment is different.

The course of work of this call conversation control function entity repeats no more shown in step 1004～1008 of Fig. 8 herein.

From the above, after this redundant Call Control Functional Entity CSCF2 obtains to refund request from CSCF1, can nullify user data on this CSCF2 from this home domain client server HSS according to this request of refunding, like this, when this CSCF1 more convenient when this HSS obtains user data.

By the foregoing description as can be known, when the CSCF entity that detects current registration when terminal breaks down, initiatively initiate disaster tolerance by terminal and handle, like this, form at CSCF under the situation of redundant system, can reduce dependence, help the deployment and the application of telecommunication apparatus miscellaneous equipment by different vendor; Owing to can especially when providing redundance unit, have bigger applicating superiority in the unified customization of terminal by different vendor.

In addition, after the CSCF entity fault that this terminal detects current registration is recovered, but this terminal indication network is refunded processing.

Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a network disaster tolerance method is characterized in that, described method comprises:

Whether the call conversation control function entity that terminal detects current registration breaks down;

If testing result is for being, then to the call conversation control function entity initiation register requirement of redundancy;

Receive the message that succeeds in registration that the call conversation control function entity of described redundancy returns.

2. method according to claim 1 is characterized in that, after succeeding in registration, described method also comprises: the address of the call conversation control function entity of described redundancy is saved as professional first-selected address.

3. method according to claim 1 is characterized in that, whether the call conversation control function entity that described terminal detects current registration breaks down, and comprising:

Described terminal makes a call to the described call conversation control function entity of current registration;

Judge whether in Preset Time, whether to receive response;

If judged result determines then that for not the described call conversation control function entity of current registration breaks down; Perhaps,

Whether the network equipment that described terminal detects current registration breaks down, and comprising:

Described terminal sends the network equipment of heartbeat signal to described current registration;

Whether judgement receives response in the preset times that sends described heartbeat signal;

If judged result determines then that for not the described network equipment of current registration breaks down.

4. method according to claim 1 is characterized in that, described call conversation control function entity to redundancy is initiated register requirement, comprising:

Register requirement is initiated to the call conversation control function entity of described redundancy in the address of the call conversation control function entity of the described redundancy that obtains according to pre-configured address or from address server.

5. according to any described method of claim in the claim 1 to 4, it is characterized in that whether the call conversation control function entity that described terminal detects current registration breaks down, and comprising:

Reception is from the calling of the call conversation control function entity route of the redundancy of network side;

Whether the address of call conversation control function entity of network side of judging described redundancy is consistent with the address of the call conversation control function entity of current registration;

If judged result is that the address is inconsistent, determine that then the described call conversation control function entity of current registration breaks down.

6. method according to claim 5 is characterized in that, before initiating register requirement to the call conversation control function entity of redundancy, described method also comprises:

Judged whether further that behind end of calling other session exists;

If judged result does not exist for there being other session, then initiate register requirement to the call conversation control function entity of described redundancy.

7. according to any described method of claim in the claim 1 to 4, it is characterized in that, the preferential call conversation control function entity when the call conversation control function entity of described current registration is contracted for the user, then described method also comprises:

Whether detect the fault of the call conversation control function entity of described current registration recovers;

If testing result is then initiated the request of refunding to the call conversation control function entity of the described current registration of breaking down for recovering, the described request of refunding comprises refunds sign and described user ID;

Receive the message that succeeds in registration that the call conversation control function entity of described current registration returns.

8. method according to claim 7 is characterized in that, before the message that succeeds in registration that the call conversation control function entity that receives described current registration returns, described method also comprises:

Receive the authentication Indication message of the described terminal authentication of indication that the call conversation control function entity of described current registration returns, described authentication Indication message comprises the subscription authentication data;

Initiate heavy register requirement according to described authentication Indication message to the call conversation control function entity of described current registration.

9. a network disaster tolerance method is characterized in that, when terminal detects the fault recovery of the call conversation control function entity that breaks down, and the call conversation control function entity that breaks down is preference faciltiy, and described method comprises:

Described call conversation control function entity receives the request of refunding that described terminal sends, and the described request of refunding comprises user ID and refunds sign;

Receive the heavy register requirement that described terminal sends;

According to described heavy register requirement from described home domain client server download user data;

Return the message that succeeds in registration after downloading successfully to described terminal.

10. method according to claim 9 is characterized in that, before the heavy register requirement that receives described terminal transmission, described method also comprises:

Obtain the subscription authentication data according to the described request of refunding from the home domain client server;

Send the authentication Indication message to described terminal, described authentication Indication message comprises described subscription authentication data.

11. method according to claim 10 is characterized in that, described basis is refunded request and is obtained the subscription authentication data from the home domain client server, comprising:

Refund the service available list of devices that request is disposed according to described when the home domain client server obtains described terminal unit contractual, to select preferential service available equipment;

According to described refund the local no user data of request detection after, obtain the subscription authentication data from described home domain client server.

12. method according to claim 10 is characterized in that, described basis is refunded request and is obtained the subscription authentication data from the home domain client server, comprising:

According to the described registered call conversation control function entity of the described terminal of acquisition request of refunding;

The described request of refunding is forwarded to described registered call conversation control function entity;

Receive the redirect response message that described registered call conversation control function entity returns, described redirect response message comprises the indication of described terminal gravity treatment call conversation control function entity registration;

Obtain described subscription authentication data according to described redirect response message from described home domain client server.

13. a network disaster tolerance method is characterized in that, when terminal detects the fault recovery of the call conversation control function entity that breaks down, and the call conversation control function entity that breaks down is preference faciltiy, and described method comprises:

The request of refunding that the call session functions entity that reception is broken down sends, the described request of refunding comprises user ID and refunds sign;

Send de-registration request to the home domain client server according to the described request of refunding, with the log-on message of the described terminal of nullifying registered call conversation control function entity;

Receive the cancellation success response message that described home domain client server returns;

Send redirect response message to the call conversation control function entity that breaks down, described redirect response message comprises the indication of the network device registration that described terminal gravity treatment is different.

14. a terminal is characterized in that, described terminal comprises:

15. terminal according to claim 14 is characterized in that, described terminal also comprises:

The unit is set, and after succeeding in registration, described the address setting that the unit is used for the call conversation control function entity of described redundancy is set is first-selected address;

Memory cell, described memory cell are used to store the address of the call conversation control function entity of described redundancy.

16. terminal according to claim 14 is characterized in that, described first detecting unit comprises:

First calling unit, described first calling unit are used for making a call to the described call conversation control function entity of current registration;

First judging unit, described first judging unit is used to judge whether receive response in Preset Time;

The first fault determining unit, if the judged result of described first judging unit is not, the then described first fault determining unit is used for determining that the described call conversation control function entity of current registration breaks down.

17. terminal according to claim 14 is characterized in that, described first detecting unit comprises:

Signal transmitting unit, described information transmitting unit are used to send the call conversation control function entity of heartbeat signal to described current registration;

Second judging unit, described second judging unit are used to judge in the preset times that sends described heartbeat signal whether receive response;

The second fault determining unit is if the judged result of described second judging unit is that the then described second fault determining unit does not determine that the described call conversation control function entity of current registration breaks down.

18. terminal according to claim 14 is characterized in that, described first detecting unit comprises:

Call out receiving element, described calling receiving element is used to receive the calling from the call conversation control function entity route of the redundancy of network side;

The 3rd judging unit, described the 3rd judging unit are used to judge whether the address of call conversation control function entity of described redundancy is consistent with the address of the call conversation control function entity of current registration;

The 3rd fault determining unit, if the judged result of described the 3rd judging unit is that the address is inconsistent, then described the 3rd fault determining unit is used for determining that the described call conversation control function entity of current registration breaks down.

19. terminal according to claim 14 is characterized in that, described terminal also comprises:

The 4th judging unit, behind end of calling, described the 4th judging unit is used to judge whether that other session exists, if judged result does not exist for there being other session, then described first request transmitting unit is used for initiating register requirement to the call conversation control function entity of redundancy.

20. terminal according to claim 14 is characterized in that, described terminal also comprises:

Whether second detecting unit, described second detecting unit are used to detect the fault of the call conversation control function entity of described current registration and recover;

Second request transmitting unit, when the testing result of described second detecting unit for being, then described second request transmitting unit is used for initiating the request of refunding to the call conversation control function entity of described current registration, and the described request of refunding comprises refunds sign and user ID;

The 3rd receiving element, described the 3rd receiving element are used to receive the message that succeeds in registration that the call conversation control function entity of described current registration returns.

21. terminal according to claim 20 is characterized in that, described terminal also comprises:

Second receiving element, described second receiving element are used to receive the authentication Indication message of the described terminal authentication of indication that the call conversation control function entity of described current registration returns, and described authentication Indication message comprises the subscription authentication data;

The 3rd request transmitting unit, described the 3rd request transmitting unit are used for initiating register requirement according to described authentication Indication message to the call conversation control function entity of described current registration.

22. a call conversation control function entity is characterized in that, described call conversation control function entity comprises:

23. call conversation control function entity according to claim 22 is characterized in that, described call conversation control function entity also comprises:

Authorization data acquiring unit, described authorization data acquiring unit are used for obtaining the subscription authentication data according to the described request of refunding from the home domain client server;

Authentication indication transmitting element, described authentication indication transmitting element is used to send the authentication Indication message to described terminal, and described authentication Indication message comprises described subscription authentication data.

24. a call conversation control function entity is characterized in that, described call conversation control function entity comprises: