Service continuity achievement method and system for dual-standby terminal

Dual waits the terminating service continuity is realized method and system

technical field

[0001] The invention relates to a communication field, more particularly relates to the wait the terminating service continuity (SC, ServiceContinuity) is realized method and system for.

Background method

[0002] Access irrelevant based on IP network (interworking, protocol Internet Protocol, a called) IP communication network comprises the next generation network (Next Generation Network-NGN), an IP multimedia subsystems (IP Multimedia

Core Network Subsystem, a called IMS), a Web to the real-time communication network (patrolling Communicationon Network is RTCffeb) and network, network providing professional capability of the user, comprising a voice communication, the video communication the real-time communication service, a service network category. The access network comprises a switch circuit (Circuit Switched, abbreviation) CS domain access and packet-switched (Packet - Switched, a called PS) domain access, CS domain access network a GSM, CDMA and network, PS domain access a LTE and HSPA, EDGE, EVDO and network.

[0003] A provided with multiple for accessing system user terminal (UE), and further provided with an access two pair and the accessing business pattern network access ability of called dual treats the terminal, comprising a lower a accessing system in some executed service, a of call, and UE mobile to the base are needed the using the accessing system, and UE the network of providing mode part is not UE is manner of the executed service, such capability we call the service continuity.

[0004] Digital 1) is realizing current the position prior PS and mobile to CS the service continuity in domain, where double to wait terminal UE-1 arranged and conversation of UE-2 through the MS signalling process, session's signal is a fixer AS, session's up and down media path of the PS and gateway, for example served GPRS support node and (SGSN) integral condition GPRS support node (GGSN), or service gateway (SGW) and packet date network gateway (PGW), UE-1 decision switch to CS domain, how UE-1 and a network realizes the service continuity process, wherein description is as follows:

[0005] The 101 =UE-1 and vibrates the transmission message through the CS domain, a invention claims a mounting (41-44) is an MSC light, a called number of the reversing special value; and AS

[0006] The 102 =MSC wire for media resource to MGW, a far-end receiving media data;

[0007] The 103 =MSC to AS the MS for transferring message, a of the light invited the INVITE (41-44), a volume to obtain the reversing special of AS, the information carried the MGW media resource information, the arranging decoding method for of the MGW IP address and receiving data interface, a supporting, a media and other related information, a message charges via the CSCF routing; AS

[0008] Steps: 104 and a UE-2 MS for updating information, a of for heavily the invited (reINVITE) or information updating the updating (41-44), the information carried the media resource information is obtained, the information via the CSCF routing point; UE-2

[0009] Steps: 105 UE-2 receiving information updating, according to receiving media resource information and confirm media data output as, and novel as for media data;

[0010] The updating response of claims 106 UE-2:, MS for of the light 200 OK message, a message of the UE-2 media resource information, a groove CSCF and AS;

[0011] Steps: 107 responded and a MSC for transfer, a top of “200” 0K message, the information carried the media resource information is obtained, a groove CSCF is at MSC;

[0012] The media resource information of claims 108 =MSC machine and straight MGW, wherein MGW closely the UE-2 for media data;

[0013] Steps: 109 MSC and CS domain to the top UE-1 is connected with a connection); message

[0014] Hence, UE-1 to CS domain the front MGW transfer and UE-2 casing service. A dual treats the terminal; the step 109, wherein the media and PS for domain.

[0015] Method for realizing the prior PS and mobile to CS the service continuity in domain, wherein MGW receiving the far-end media data, a signalling process is not completed, which is made UE-1 transmission media data, wherein the driving of media data at UE-1. Likewise, CS domain the mobile to the service continuity in PS domain, and a downlink media data at problem of the PS and mobile to the service continuity in PS the area of media synchronous signal without for. Prior art without aims at the MS network, PS a to the techniques' the network, for example NGN or based on Web real-time communication network equal not with interaction method.

invention content

[0016] The invention wants the solving the technical problems is to provide a service continuity realizing method and system for avoiding, a downlink media data at the switching process.

[0017] For solving is an problems, the invention claims a double waited with the terminating service continuity to method for realizing; the method comprises: The server for receiving the associated with session's transmission message, wherein the session the media resource information informing of current far-end to the volume and interactive network elements, wherein a volume and interactive network elements to of informing the opening end of the transmission message sending end of the media data.

[0018] Further, the method may further comprises the following: the

[0019] The back renewed server by session's fibre, responds to the transmission message.

[0020] Further, the method may further comprises the following: the

[0021] The session's transmission message sending end of the CS domain switch to the PS domain, or a PS domain switch to CS domain, or from a PS domain switch to the PS domain.

[0022] Further, the method may further comprises the following: the

[0023] The target and interactive network unit indication target area is arranged on the transmission message sending end media the bearing.

[0024] Further, the method may further comprises the following: the

[0025] The volume and interactive network elements received to the informing, informs to the transmission message sending end is connected to the receiving media data.

[0026] Further, the method may further comprises the following: the

[0027] The back renewed server by session's fibre, informs to the volume and interactive network elements far-end novel media resource information.

[0028] Further, the method may further comprises the following: the

[0029] When the target for domain CS domain, wherein the volume and interactive network element is mobile switching centre (MSC) or media gateway control function, (MGCF)When the target area of the PS domain, wherein the volume and interactive network element is a policy and charging rule functional (PCRF) or automatically CSCF (P-CSCF) or packet date network gateway (PGW) or gateway GPRS support node (GGSN).

[0030] For solving is an problems, the invention further claims a to realize dual treats the terminating service continuity server; the server comprises service continuity processing module; The service continuity processing module, for receiving the associated with session's transmission message, wherein the session the media resource information informing of current far-end to the volume and interactive network element.

[0031] , Wherein the server is further comprises the following: the

[0032] The service continuity processing module, further - comprising a used to updating of session's fibre, informs to the volume and interactive network elements far-end novel media resource information.

[0033] For solving is an problems, the invention further claims a to realize dual treats the terminating service continuity interactive system, system, comprising interactive network element, and interactive network unit comprises service continuity processing module; The service continuity processing module, for receiving the server is provided session's current far-end media resource information according session's transmission message informed, according to the informing the opening end of the transmission message sending end of the media data.

[0034] Further, the interactive gateway system capable further comprises the following: the

[0035] The service continuity processing module, is further used for indicating volume and connected to the transmission message sending end media the bearing.

[0036] Further, the interactive gateway system capable further comprises the following: the

[0037] The service continuity processing module, further - comprising for is screwed to the informing, informs to the transmission message sending end is connected to the receiving media data.

[0038] Further, the interactive gateway system capable further comprises the following: the

[0039] When the interactive network elements are target for domain the CS domain, wherein the interactive network element is mobile switching centre (MSC) or media gateway control function, (MGCF)When the interactive network elements are target area of the PS domain, wherein the interactive network element is a policy and charging rule functional (PCRF) or automatically CSCF (P-CSCF) or packet date network gateway (PGW) or gateway GPRS support node (GGSN).

[0040] The originally of the capacitor, the server of inform the related network elements transmission message sending end promptly the media data, wherein a avoiding a downlink media data at the switching process.

brief description fo the drawings

[0041] Digital 1 is the existing session realizing end points to CS the service continuity in personal from the PS domain, mobile

[0042] Digital is 2 to implement the session the invention to CS the service continuity in personal realizing current position of the PS domain, mobile

[0043] Digital is 3 to implement the session the invention claims a service continuity in PS domain realizing current position of the CS domain, mobile

[0044] Digital is 4 to implement the invention session to the service continuity in PS2 domain realizing current position of the PSl and mobile.

Performing is specifically

[0045] Dual waits the terminating service continuity to realizing method comprises: The server for receiving the associated with session's transmission message, wherein the session the media resource information informing of current far-end to the volume and interactive network elements, wherein a volume and interactive network elements to of informing the opening end of the transmission message sending end of the media data.

[0046] Of said method, wherein session's transmission message sending end from CS domain switch to the PS domain, or a PS domain switch to CS domain, or from a PS domain switch to the PS domain.

[0047] The back renewed server by session's fibre, responds to the transmission message.

[0048] The target and interactive network unit indication target area is arranged on the transmission message sending end media the bearing.

[0049] The volume and interactive network elements received to the informing, informs to the transmission message sending end is connected to the receiving media data.

[0050] The back renewed server by session's fibre, informs to the volume and interactive network elements far-end novel media resource information.

[0051] When the target for domain CS domain, wherein the volume and interactive network element is mobile switching centre (MSC) or media gateway control function, (MGCF)When the target area of the PS domain, wherein the volume and interactive network element is a policy and charging rule functional (PCRF) or automatically CSCF (P-CSCF) or packet date network gateway (PGW) or gateway GPRS support node (GGSN).

[0052] Realizing dual treats the terminating service continuity server comprises a service continuity processing module; The service continuity processing module, for receiving the associated with session's transmission message, wherein the session the media resource information informing of current far-end to the volume and interactive network element.

[0053] The service continuity processing module, further - comprising a used to updating of session's fibre, informs to the volume and interactive network elements far-end novel media resource information.

[0054] Realizing dual treats the terminating service continuity interactive gateway system comprises a interactive network element, and interactive network unit comprises service continuity processing module; The service continuity processing module, for receiving the server is provided session's current far-end media resource information according session's transmission message informed, according to the informing the opening end of the transmission message sending end of the media data.

[0055] The service continuity processing module, is further used for indicating volume and connected to the transmission message sending end media the bearing.

[0056] The service continuity processing module, further - comprising for is screwed to the informing, informs to the transmission message sending end is connected to the receiving media data.

[0057] When the interactive network elements are target for domain the CS domain, wherein the interactive network element is mobile switching centre (MSC) or media gateway control function, (MGCF)When the interactive network elements are target area of the PS domain, wherein the interactive network element is a policy and charging rule functional (PCRF) or automatically CSCF (P-CSCF) or packet date network gateway (PGW) or gateway GPRS support node (GGSN).

[0058] A reference on a wall detailed emitter to the diaphragm technical solution the light of the auxiliary digital and embodiment.

[0059] Digital 2 of the cross realizing current image PS and mobile to CS the service continuity in domain, where double to wait terminal UE-1 arranged and conversation of UE-2 through the signal process, session's signal of the anchor is server (Server), an MS of network AS, or NGN network Call Server, or based on Web real-time communication network Web Server equal, session's up and down media path of the PS and gateway, for example SGSN and GGSN, or SGW and PGW, UE_1 decision switch to CS domain, how UE-1 and a network realizes the service continuity process, wherein description is as follows:

[0060] The 201 =UE-1 and vibrates the transmission message to CS the interactive network elements through the CS domain, a invention claims a mounting (41-44) is an MSC light, a called for aim at said Server (; the

[0061] A MSC without providing interactive function, and MSC a message to CS the interactive network element for MGCF, for example initial address message (IAM), called number to obtain directional Server (; the

[0062] The steps: 202 CS interactive network element (MSC or MGCF) wire for media resource to MGW, a far-end receiving media data;

[0063] The steps: 203 CS interactive network elements to the Server for transferring message, a of the light invited the INVITE (41-44), the information carried the reversing Server (number of obtained, a message further of the MGW media resource information, arranging decoding method for of the MGW IP address and receiving data interface, a supporting, media type and related information;

[0064] Pedal 204, theServer is original session's signal anchor point; therefore of Server by a conversion message calling information associated and session, wherein The number of the original session's far-end media resource information, Server to CS the interactive network elements routing directive voltage reporting, a top of the Session 183 Progressing a message or the INFO message, and original session's far-end media resource information;

[0065] The steps: 205 CS interactive network element output end of the UE-1 media data according to report opening, namely and MGW and opening according to media resource information in the report output end of the UE-1 media data is;

[0066] Hence, MGW and a far-end by the media data and is UE-1 through the CS domain forwarding.

[0067] Steps: 206 CS interactive network elements through CS domain to UE-1 for early is connected with the information, for example, a CS the interactive network element is MSC, and MSC for switching ring (Alerting message), a CS the interactive network element is MGCF; and MGCF for address completes message (ACM);

[0068] Steps: 207 Server to UE-2 for updating information, a of for heavily the invited (reINVITE) or information updating the updating (41-44), the information carried the media resource information according, relating

[0069] Steps: 208 UE-2 receiving information updating, according to receiving media resource information and confirm media data output as, and novel as for media data;

[0070] Steps: 209 UE-2 for updating responded, a of the light 200 OK message, the information carried the UE-2 media resource information, a message to at Server,

[0071] The =Server 210 responded to CS the interactive network elements for transfer, a top of “200” 0K message, the information carried the media resource information according, relating

[0072] The media resource information of a step: 211 CS interactive network elements to obtaining and MGW, wherein MGW closely the UE-2 for media data;

[0073] Steps: 212 CS interactive network elements through CS domain to UE-1 for is connected with the information, for example, a CS the interactive network element is MSC, and MSC for is connected with connection (41-44), a CS the interactive network element is MGCF; and MGCF for acknowledge message (ANM);

[0074] Hence, UE-1 to CS domain the front MGW transfer and UE-2 casing service.

[0075] Digital 3 of the capacitor and mobile realizing end points to CS the service continuity in PS domain, where double to wait terminal UE-1 arranged and conversation of UE-2 through the signal process, session's signal is a fixer Server, session's up and down media path of the MGW, UE-1 decision switch to the PS domain, how UE-1 and a network to realize the service continuity process, wherein description is as follows:

[0076] The 301 =UE-1 and vibrates the transmission message to Server by PS domain, a of the light invited the INVITE (41-44), the information carried the represent session transfer's identifier; the session transfer identifier of the identifier want transfer's, session

[0077] The 302 =Server are the same session's signal anchor point; therefore of Server by a conversion message calling information or a session transfer identifier associated and session, wherein The number of the original session's far-end media resource information, Server to the PS interactive network elements for reporting, a top of the Session 183 Progressing a message or the INFO message, and original session's far-end media resource information;

[0078] PS interactive network elements can be PCRF, or PS and gateway (for example GGSN or PGW), and is an MS network, while the PS interactive network element further can be P-CSCF.

[0079] The steps: 303 PS interactive network element output end of the UE-1 media data according to report opening;

[0080] And the PS interactive network element is PCRF, and PCRF open top of the UE-1 media data to of the informing the PS and gateway performing media bearing to program and opening output end of the UE-1 media data is; and PS interactive network element is P-CSCF; and P-CSCF open top of the UE-1 media data to of the informing a PCRF resource reservation and containing is fixed to the position of the UE-1 media data, PCRF informs the PS and gateway performing media bearing to program and opening and output end of the UE-1 media data is; and PS interactive network element is a PS and gateway; and PS and gateway the output end of the UE-1 media data to of the informing the PS and gateway performing media bearing to program and opening output end of the UE-1 mediaThe data transmission.

[0081] Hence, the PS and gateway of receiving a far-end by the media data and is UE-1 by PS domain forwarding.

[0082] Steps: 304Further used, PS interactive network elements to UE-1 for early is connected with the information, for example, and PS interactive network element is P-CSCF; and P-CSCF for (183 Progressing Session a message or INFO information; and PS interactive network element is PCRF, and PCRF for informing the PS and gateway reservation performing media bearing to for increasing the indicator early is connected with the identifier, the PS and gateway to the identifier informing a media bearing to program UE-1; and PS interactive network element is a PS and gateway; and PS and gateway for informing identifier of an early is connected with the media bearing to program, UE-1

[0083] Hence, UE-1 coated to the receiving media data.

[0084] Claims 305 to 307 and 2 digital claims 207 to 209);

[0085] The =Server 308 responded to UE-1 for transfer, a top of “200” 0K message, the information carried the media resource information according, relating

[0086] A pedal 308 media resource information and step 302 media resource information different; and UE-1 of the bracket and media data the PS for domain.

[0087] Steps: 309And the damage 308 media resource information and damage 302 media resource information are different; and Server to the PS interactive network elements for reporting, a of the light INFO message, and media resource information for obtaining;

[0088] And the PS interactive network element is P-CSCF, then claims 309 or performings, wherein of claims 308 and a P-CSCF.

[0089] Steps: 310And the damage 308 media resource information and damage 302 media resource information are different; the media resource information according and a PS interactive network elements to obtaining and PS and gateway, wherein the PS and gateway to updating the media bearing;

[0090] Steps: 311And the damage 308 media resource information and damage 302 media resource information are different; and PS and gateway by PS domain to the top UE-1 is connected with the information, for example, updating media the bearing process Modify BearerRequest, message

[0091] Hence, UE-1 the PS domain front PS domain gateway's transfer and UE-2 casing service.

[0092] Digital 4 of the cross realizing current image PS and mobile to the service continuity in PS domain, where double to wait terminal UE-1 arranged and conversation of UE-2 through the signal process, session's signal is a fixer Server, session's up and down media path of the PS and gateway 1, UE-1 decision switch to the PS domain (for example from a WiFi mobile to LTE, or from the HSPA mobile to CDMA or WiFi equal), how UE-1 and a network to realize the service continuity process, wherein description is as follows:

[0093] Claims 401 to 411, and digital 3 claims 301 to 311);

[0094] Are needed to explain; the condition of the brushless conflicting, wherein the embodiment and embodiment of the application of each of the combination.

[0095]Part, the invention also provided with an or more of embodiments, which is far away from the invention mental and substantive condition, comprising familiar with a provide the field relate to act according to the invention is each corresponding change and distortions; and corresponding change and distortions the belong to any claim has a protection according the invention connector.

[0096] The field and a provide with understand switch or a part of the method may receive the related a hardware to achieve by program, wherein the program memory is connected to an of the computer the storage medium, to non-erasable memory, floppy disk or CD equal. Further used, wherein the example's switch or a part which is capable using the one or more integrated - circuits realized. , Each of which the embodiment/unit is in the form of hardware to realize, may use software function module the stepped hole of. The invention without limiting the specific to form a combination of hardware and software.