CN101605318B - Method, device and system for realizing service switching - Google Patents
Method, device and system for realizing service switching Download PDFInfo
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- H—ELECTRICITY
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
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Abstract
The embodiment of the invention discloses a method, a device and a system for realizing service switching. The method comprises the following steps: a mobile switching center receives a switching request sent by a mobile management entity; the mobile switching center acquires CAMEL data of UE; and the mobile switching center switches services of the UE according to the CAMEL data. The embodiment of the invention effectively realizes that the MSC can successfully carry out a service switching process when the user equipment UE is switched from a PS domain to a CS domain, thereby ensuring the continuity of the on-going services of the UE.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to UE switches to the CS territory from the PS territory business realizing.
Background technology
3GPP is in order to strengthen the competitiveness of future network; Studying a kind of brand-new evolvement network; Its system architecture diagram is as shown in Figure 1; The UMTS Terrestrial radio access network (E-UTRAN, Evolved UMTS Terrestrial Radio Access Network) that comprises evolution is used to realize all and the wireless function associated of evolvement network; Mobile management network element (MME, Mobility Management Entity) is responsible for the mobile management of chain of command, comprises the management of customer equipment context and mobile status, distributing user temporary identity sign etc.; Service gateway entity (SGW, Serving Gateway) is the user plane anchor point between the 3GPP access network, stops the interface of E-TURAN; Grouped data network gateway entity (PGW, Packet Data Network Gateway) is the user plane anchor point between 3GPP access network and the non-3 GPP access network network, the interface of termination and external packet data network (PDN, Packet Data Network)."Policy and Charging Rules Function entity (PCRF, Policy and Charging Rule Function) is used for policy control decision and flow based charging controlled function.Home subscriber server (HSS, Home Subscriber Server) is used to store the UE CAMEL-Subscription-Information.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of professional method, Apparatus and system that switches of realizing, to guarantee UE when the PS network switches to the CS network, the continuity of the ongoing business of UE.A kind of method that realizes professional switching is characterized in that, when user equipment (UE) is switched in the circuit domain process by packet domain: mobile switching centre receives the handoff request of carrying the CAMEL data that mobile management entity sends; Said mobile switching centre obtains the CAMEL data of said UE from said handoff request; Said mobile switching centre is that said UE carries out the business switching according to said CAMEL data.
A kind of mobile switching centre, wherein, this mobile switching centre comprises receiving element, acquiring unit, processing unit, wherein, receiving element is used to receive the handoff request of carrying the CAMEL data that mobile management entity sends; Acquiring unit is used for obtaining from described handoff request message the CAMEL data of UE; Processing unit, being used for according to said CAMEL data is that said UE carries out the business switching.
A kind of mobile management entity, wherein, this mobile management entity comprises receiving element; Transmitting element, wherein, this transmitting element; Be used for sending the request of obtaining the CAMEL data, and send the CAMEL data that receiving element is received, this receiving element to HSS or HLR; Be used to receive the CAMEL data from HSS or HLR, further comprise encapsulation unit, the independently CAMEL cell of data that is used for receiving element is received is encapsulated into non-CAMEL cell; Send the said non-CAMEL cell that carries the CAMEL data by transmitting element to mobile switching centre, so that said mobile switching centre is that said UE carries out the business switching according to said CAMEL data.
A kind of communication system, wherein, this communication system comprises mobile switching centre, mobile management entity; Wherein, this mobile management entity is used for sending the handoff request of carrying the CAMEL data to mobile switching centre; This mobile switching centre; After being used to receive said handoff request, from described handoff request, obtain the CAMEL data of UE, and carry out the session switching according to the CAMEL data of UE.
Visible by technique scheme, when user equipment (UE) in the PS territory when the CS territory switches, MSC obtains the CAMEL data of said UE, and is that said UE carries out the business switching according to said CAMEL data.Make the professional switching flow of initiation that MSC can be successful, can guarantee the continuity of the ongoing business of UE.
Description of drawings
Fig. 1 is the system architecture diagram of the evolvement network of 3GPP,
Fig. 2 is a SR VCC system architecture diagram,
Fig. 3 is the business switch method flow chart of the embodiment of the invention one,
Fig. 4 is the business switch method flow chart of the embodiment of the invention two,
Fig. 5 is the business switch method flow chart of the embodiment of the invention three,
Fig. 6 is the business switch method flow chart of the embodiment of the invention four,
Fig. 7 is the business switch method flow chart of the embodiment of the invention five,
Fig. 8 is the business switch method flow chart of the embodiment of the invention six,
Fig. 9 is the sketch map of embodiment of the invention expansion cell,
Figure 10 is the method flow diagram of the embodiment of the invention eight,
Figure 11 is the method flow diagram of the embodiment of the invention nine,
Figure 12 is the system diagram of the embodiment of the invention.
Embodiment
Since when UE from the PS network (for example: the EUTRAN network) (for example: in the time of the CS territory of GERAN/UTRAN network) switch to the CS network; UE is carrying out business (is example with the continuous professional SR VCC of single connecting system voice at this), and need switch to speech business the CS network and guarantee voice continuity this moment.Because UE can not be registered to the MSC in the CS network before switching, promptly MSC just can not obtain the CAMEL data of UE from HSS or HLR.Do not have the CAMEL data, cause the voice handoff failure thereby MSC can't route the call to the IMS territory.
It is professional that the present invention not only can apply to SR VCC, and other business of using the CAMEL data also can so be used.Wherein the CAMEL data can refer to whole C AMEL data or the relevant CAMEL data of specific transactions that UE is relevant; Include but not limited to TDP (Trigger Detection Point) List, gsmSCF (GSM Service Control Function) address, Service Key, the present invention does not do any restriction to this.But, be that example describes only among the following embodiment with SR VCC business for the convenience of describing.
As shown in Figure 3, the business switch method flow chart for the embodiment of the invention one comprises the steps:
As shown in Figure 4, the business switch method flow chart for the embodiment of the invention two comprises the steps:
In the process that subscription authentication or position are upgraded, executing location is upgraded and is inserted the subscription data flow process between mobile management network element and the HSS, with the address registration of mobile management network element in HSS.HSS is inserted into the subscription data of UE in the mobile management network element simultaneously, comprises the CAMEL data of UE etc. in this subscription data.Wherein, HSS also can be inserted into mobility management unit with the CAMEL data of UE through log-on data.
ENodeB initiates Handover Required message and gives MME, carries SR VCCindication in the message, and indication MME carries out SR VCC and switches.
Wherein mobile management network element MME send the step of the request obtain the CAMEL data can be after step 203, i.e. eNodeB indication MME carries out voice when switching, MME obtains the CAMEL data to HLR/HSS.
In addition, CAMEL data that also can pre-configured subscriber equipment on the mobile management network element then need not step 202, and mobile management network element can be issued MSC with pre-configured CAMEL data.
In another embodiment of the present invention; In the step 202; The message of the request CAMEL data that mobile management network element MME sends to HSS or HLR, the capability information of user facility and/or the capability information of wherein carrying said UE, HSS or HLR are according to said capability information of user facility and/or capability information; Filter the CAMEL data of said UE, will send to MME with the CAMEL data of capability information of user facility and/or capability information corresponding service.
Capability information of user facility and/or capability information are represented: capability information of user facility, capability information, perhaps capability information of user facility and capability information.
Wherein, When HSS or HLR can be according to capability information of user facility and capability information; The CAMEL data of the business that network side and user side can realize simultaneously are provided, and the business that can guarantee is not interrupted continuously, and the business that provides subscriber equipment and network side to support simultaneously to subscriber equipment.
In another embodiment of the present invention, the CAMEL data are carried through independent cell.
In another embodiment of the present invention, the CAMEL data are carried through expanding existing cell, wherein,
1, the cell that will carry the CAMEL data after HSS will expand brings MME, and MEE can directly carry the cell of CAMEL data in switching message.
2, HSS carries the CAMEL data and gives MME, carries the existing cell of CAMEL data after the existing cell of MME expansion, and transmission is then expanded and gives MSC.
For example, through expansion VDN number carry the CAMEL data can for:
HSS brings mobile management entity through said VDN number through expansion with it; Perhaps
HSS will carry the cell of CAMEL data and give mobile management entity, and mobile management entity expansion VDN, and through handoff request message carries the VDN number that carries the CAMEL data after the expansion and gives mobile switching centre.
As shown in Figure 5, the business switch method flow chart for the embodiment of the invention three comprises the steps:
Step 301, UE are attached to the EUTRAN network.
Step 302, UE switch between heterogeneous networks, need ongoing business (for example speech business SR VCC) be switched to the GERAN/UTRAN network from the EUTRAN network simultaneously, and eNodeB indication MME switches.Specifically can for:
ENodeB initiates Handover Required message and gives MME, carries SR VCCindication in the message, and indication MME carries out SR VCC and switches.
Step 303, MME send handoff request and give MSC.Notice MSC switches speech business.
After step 304, MSC receive the message of MME transmission; This moment is not because MSC has the CAMEL data; MSC is to the request of HSS or HLR request CAMEL data, and HSS or HLR send to MSC with the CAMEL data, can be the whole C AMEL data relevant with UE in these CAMEL data.Specifically can for:
MSC sends Map Update Location Request message to HSS or HLR, carries capability information of user facility and/or capability information in the message.HSS or HLR insert among the MSC CAMEL data of wherein carrying UE in subscription data or the log-on data according to capability information of user facility and/or capability information with subscription data or the log-on data of UE.
After step 305, MSC receive the CAMEL data,, carry out session and switch to IMS territory initiation session handoff request.
In another embodiment of the present invention; In the step 304; The message of the request CAMEL data that MSC sends to HSS or HLR, the capability information of user facility and/or the capability information of wherein carrying said UE, HSS or HLR are according to said capability information of user facility and/or capability information; Filter the CAMEL data of said UE, will send to MSC with the CAMEL data of capability information of user facility and/or capability information corresponding service.
Capability information of user facility and/or capability information are represented: capability information of user facility, capability information, perhaps capability information of user facility and capability information.
Wherein, When HSS or HLR can be according to capability information of user facility and capability information; The CAMEL data of the business that network side and user side can realize simultaneously are provided, and the business that can guarantee is not interrupted continuously, and the business that provides subscriber equipment and network side to support simultaneously to subscriber equipment.
In another embodiment of the present invention, the CAMEL data are carried through independent cell.
In another embodiment of the present invention, the CAMEL data are carried through expanding existing cell.
As shown in Figure 6; Be the signaling process figure of embodiment of the invention specific embodiment four, UE is in EPS network attachment process, and MME obtains the subscription data of UE from HSS; This subscription data comprises the CAMEL data of UE; When UE carried out speech business and switches to the GERAN/UTRAN network by the EUTRAN network, MME carries UE in handoff request (concrete message can be to transmit handoff request Forward Relocation Request) message CAMEL data guaranteed that MSC can route the call to the IMS territory; Help through SR VCC and switch, may further comprise the steps:
Step 401, SRVCC UE send Attach Request message to mobile management network element.For the EUTRAN network, mobile management network element is MME.
Carry out authorizing procedure between step 402, UE, mobile management network element, the HSS.
Executing location is upgraded and is inserted the subscription data flow process between step 403, mobile management network element and the HSS, with the address registration of mobile management network element in HSS.HSS was inserted into the subscription data of UE in the mobile management network element when wherein MME sent, and wherein comprised the CAMEL data, VDN, MSCISDN of UE etc. in this subscription data.
Step 404, mobile management network element are selected PGW according to the default APN that UE uses, and send establishment default bearer request message and carry out the establishment that default PDN connects to SGW, send default bearer foundation response after PGW sets up and accomplishes and give SGW, MME.
Step 407, HSS preserve APN and the PGW address information that UE uses, and home position upgrades response message to mobile management network element.
Step 408, UE initiate audio call under the covering of EUTRAN network.Switch to the GERAN/UTRAN area of coverage subsequently.
Step 409, UE send to eNodeB with measurement report.
Step 410, eNodeB decision are initiated to switch; And help accomplish SR VCC according to the SR VCC ability select target sub-district of UE and switch; Send Handover Required message and give MME, carry SR VCC indication in the message, indication MME carries out SR VCC and switches.
Step 411, MME send forwarding handoff request Forward Relocation Request message to MSC according to SR VCC indication and the voice QCI that eNodeB carries, and carry CAMEL data, VDN, MSISDN, MM context etc. in the message.
Step 412, MSC send Prepare Handover Request message and give target MSC.The safe context of CS is shone upon by the MM context.
Step 413, target MSC are with accomplishing the target side resource allocation through exchange HandoverRequest/Acknowledge message between the target access network side.
Step 414, target MSC send Prepare Handover Response message and give MSC.
Set up circuit through IAM and ACM message between step 415, target MSC/MGW and the MSC.
Step 416, because CAMEL data and the VDN number in the step 411 arranged, make MSC can carry the VDN number and switch to IMS territory initiation session.In this process, upgrade far-end CS access leg, descending VOIP data will be transmitted from the CS access leg.In other business, MSC need not the VDN number, just can realize the session switching according to the CAMEL data.
Step 417, MSC send Forward Relocation Response message and give MME, carry Target to Source Transparent Container in the message.
Step 418, MME send Handover Command (Target to Source TransparentContainer) message and give eNodeB.
Step 419, eNodeB send Handover Command message to the UE.
Step 420, UE switch to target GERAN/UTRAN network, and flow is identical with existing realization, repeats no more.
As shown in Figure 7, be specific embodiment five of the present invention, present embodiment obtains the CAMEL data by MSC to HSS/HLR, comprises the steps:
Step 501, UE send to eNodeB with measurement report.
Step 502, eNodeB decision are initiated to switch; And help accomplish SR VCC according to the SR VCC ability select target sub-district of UE and switch; Send Handover Required message and give MME, carry SR VCC indication in the message, indication MME carries out SR VCC and switches.
Step 503, MME send forwarding handoff request Forward Relocation Request message to MSC according to SR VCC indication and the voice QCI that eNodeB carries, and carry VDN, MSISDN, MM context etc. in the message.
After step 504, MSC receive the message of MME transmission, do not have the CAMEL data this moment, satisfy to HSS/HLR and send Map Update Location Request message, carry (IMSI, MSC sign be the capability information of address, UE perhaps) in the message.
Step 505, HSS/HLR are inserted among the MSC CAMEL data of wherein carrying UE in the subscription data according to UE ability information and/or capability information (for example comprising the SRVCC professional ability) with the subscription data of UE.
Step 506, HSS/HLR send Map Update Location Response message and give MSC, and notice MSC upgrades the position and accomplishes.
Step 507, MSC send Prepare Handover Request message and give target MSC.The safe context of CS is shone upon by the MM context.
Step 508, target MSC are with accomplishing the target side resource allocation through exchange HandoverRequest/Acknowledge message between the target access network side.
Step 509, target MSC send Prepare Handover Response message and give MSC.
Set up circuit through IAM and ACM message between step 510, target MSC/MGW and the MSC.
Step 511, because CAMEL data and the VDN number in the step 503 in the step 505 arranged, make MSC can carry the VDN number and switch to IMS territory initiation session.In this process, upgrade far-end CS access leg, descending VOIP data will be transmitted from the CS access leg.In other business, MSC need not the VDN number, just can realize the session switching according to the CAMEL data.
Step 512, MSC send Forward Relocation Response message and give MME, carry Target to Source Transparent Container in the message.
Step 513, MME send Handover Command (Target to Source TransparentContainer) message and give eNodeB.
Step 514, eNodeB send Handover Command message to the UE.
Step 515, UE switch to target GERAN/UTRAN network, and flow is identical with existing realization, repeats no more.
As shown in Figure 8, be the signaling process figure of specific embodiment six of the present invention, only comprise relevant CAMEL related data in the subscription data that HSS returns with SR VCC, other incoherent CAMEL data are filtered out by HSS, comprise the steps:
Step 601, SRVCC UE send Attach Request message to mobile management network element.For the EUTRAN network, mobile management network element is MME, and the ability information of carrying UE in this message, this information comprise the SR VCC ability of UE.
Carry out authorizing procedure between step 602, UE, mobile management network element, the HSS.
Step 603, mobile management network element send Update Location message and give HSS, the ability information and/or the capability information of carrying UE in the message.This information spinner will be in order to obtain with professional relevant subscription data, and HSS filters out irrelevant information.
Step 604, HSS filter with the CAMEL data of SRVCC independent of service according to the SRVCC ability information of UE and in inserting subscription data message, carry to MME, carry information such as the professional relevant CAMEL data of SRVCC, VDN, MSISDN in the message.
Step 605, HSS send the position renewal and reply to MME, and the expression position is upgraded and accomplished.
Step 606, mobile management network element are selected PGW according to the default APN that UE uses, and send establishment default bearer request message and carry out the establishment that default PDN connects to SGW, send default bearer foundation response after PGW sets up and accomplishes and give SGW, MME.
Step 607, mobile management network element return to adhere to and receive message to UE.
Step 608, mobile management network element send and upgrade location request message to HSS, carry the APN and the PGW address information of the default PDN connection of UE use in the message.
Step 609, HSS preserve APN and the PGW address information that UE uses, and home position upgrades response message to mobile management network element.Follow-up other flow processs repeat no more.
Specific embodiment seven of the present invention, flow chart is identical with embodiment four, is not repeating at this.Present embodiment is given MME or MSC through expansion VDN number with the CAMEL data tape.The VDN number brings MME by HSS in the prior art in the UE attaching process, and the VDN structure after the expansion is as shown in Figure 9.Also can adopt other existing subscription data of expansion to make it to comprise the CAMEL data, seldom do description at this.Comprise the steps:
Step 701, SRVCC UE send Attach Request message to mobile management network element.For the EUTRAN network, mobile management network element is MME.
Carry out authorizing procedure between step 702, UE, mobile management network element, the HSS.
Executing location is upgraded and is inserted the subscription data flow process between step 703, mobile management network element and the HSS, with the address registration of mobile management network element in HSS.HSS was inserted into the subscription data of UE in the mobile management network element when wherein MME sent; Wherein comprise VDN or the cell after other expansions after the expansion, MSCISDN etc. in this subscription data, wherein comprise the CAMEL data of UE in the cell after the VDN after the expansion or other expansions.
Step 704-step 710, with step 404-step 410 description among the embodiment four.
SR VCC indication that step 711, MME are carried according to eNodeB and voice QCI send and transmit handoff request Forward Relocation Request message and give MSC, carry VDN or the subscription data after other expansions after the expansion, MSISDN, MM context etc. in the message.
Step 712, MSC send Prepare Handover Request message and give target MSC.The safe context of CS is shone upon by the MM context.
Step 713, target MSC are with accomplishing the target side resource allocation through exchange HandoverRequest/Acknowledge message between the target access network side.
Step 714, target MSC send Prepare Handover Response message and give MSC.
Set up circuit through IAM and ACM message between step 715, target MSC/MGW and the MSC.
Step 716, because the VDN after the expansion in the step 711 has been arranged, the VDN number that MSC resolves after the expansion obtains the CAMEL data, makes MSC can carry former VDN number and switches to IMS territory initiation session.In this process, upgrade far-end CS access leg, descending VOIP data will be transmitted from the CS access leg.Follow-up with step 417-step 420 description among the embodiment four.
Shown in figure 10; Signaling process figure for specific embodiment eight of the present invention; When the service Mobility Management Entity of UE changes; CAMEL data that need the cell after the subscription data VDN that expand in the subscription data or other expansions is perhaps independent, the VDN number brings next service UE in the context transport process Mobility Management Entity are that example is described with TAU.
Step 801, since SRVCC UE moved to a new tracking area, subscriber equipment sends tracing section updating request TAU Request and gives target side mobile management network element MME.
Step 802, target side MME send context request to source MME, the contextual information of request subscriber equipment.
The contextual information that step 803, source MME are relevant with this subscriber equipment brings target side MME through ContextResponse message, wherein carries VDN number or the cell after other expansions after independent CAMEL data, VDN data or the expansion in the context.
Step 804, UE, target side MME, HSS carry out authentication.
After step 805, target side MME receive context, send Context Ack and give source MME.
Step 806, target side MME and HSS carry out position more new technological process and insertion subscription data flow process.
Step 807, target side MME send TAU Accept message and give UE.
Shown in figure 11; For the signaling process figure of specific embodiment nine of the present invention describes when the service Mobility Management Entity of UE changes to switch to example, need be with the subscription data after the subscription data VDN that expands in the subscription data or other expansions or independent CAMEL data, the VDN number brings next service UE in the context transport process Mobility Management Entity.
Switching flow is initiated in step 901, eNodeB decision.
Step 902, eNodeB send handoff request Handover Required message and give source MME.
Step 903, source MME will send Forward Relocation Request message and give target side MME, carry VDN number (carrying the CAMEL data) or the cell after other expansions after MM context, MSISDN, independent CAMEL data, VDN data or the expansion in the message.
Step 904, target side MME send Handover Request (Serving GW addressesand uplink TEID (s) for user plane) message and give target side eNodeB.This message is mainly and in target eNodeB, generates UE context.Mainly comprise beared information and safe context information.
Step 905, target eNode B are sent Handover Request Acknowledge message and are given target side MME..This message comprises S1 u interface downlink data face address and TEID.
Step 906, target side MME send Forward Relocation Response message and give source MME.
Step 907, source MME send Handover Command message and give source eNodeB.
Step 908, source eNodeB send Handover Command notice UE and switch to the target side network.
Step 909, when the UE successful switch behind Target cell, send Handover Confirm message and give target eNode B.
Step 910, target eNode B are sent Handover Notify message and are given target MME.
Step 911, target side MME send Forward Relocation Complete and give source MME.Source MME sends Forward Relocation Complete Acknowledge and gives target side MME.
Step 912, source MME send Forward Relocation Complete Ack message and give target side MME.
The serving MME of step 913, UE changes, and accomplishes GUTI and heavily distributes with TAI list and distribute so initiate the TAU flow process.
Like Figure 12, be the system diagram of the embodiment of the invention, comprise user equipment (UE) 10, moving exchanging center MSC 20; Mobile management entity MME 30, HSS or HLR40, wherein mobile switching centre 20 further comprises receiving element 204; Acquiring unit 202, processing unit 201, wherein
The receiving element 204 of mobile switching centre 20 receives the handoff request of mobile management entity MME 30; The acquiring unit 202 of mobile switching centre 20 obtains the CAMEL data of UE; The processing unit 201 of mobile switching centre 20, being used for according to said CAMEL data is that said UE carries out the business switching.
Further, said mobile switching centre also comprises transmitting element 203,
The transmitting element 203 of mobile switching centre 20; Be used for sending the message of asking the CAMEL data to HSS or HLR40; Receiving element 204; Be used to receive the message of carrying the CAMEL data of HSS or HLR40 transmission, acquiring unit 202 is used for obtaining the CAMEL data from the message of the said CAMEL of carrying data.
In an alternative embodiment of the invention,
Said mobile management entity MME 30 further comprises transmitting element 301, receiving element 303,
The transmitting element 301 of mobile management entity MME 30 is used for sending the request of obtaining the CAMEL data to HSS or HLR40; Receiving element 303; Be used to receive the CAMEL data from HSS or HLR40, transmitting element 301 sends the CAMEL data that receiving element 303 is received to the receiving element 204 of mobile switching centre.
The acquiring unit 202 of mobile switching centre is used for from the message of carrying the CAMEL data that described receiving element 204 is received, obtaining the CAMEL data.
Wherein, mobile management entity MME 30 transmitting elements 301 can directly send the CAMEL data through handoff request to the receiving element 204 of mobile switching centre, and then the acquiring unit 202 of mobile switching centre obtains the CAMEL data from described handoff request message.
Further,
Mobile management entity MME also comprises encapsulation unit 302, and the independently CAMEL cell of data that encapsulation unit 302 is used for receiving element 303 is received is encapsulated into non-CAMEL cell, sends the said non-CAMEL cell that carries the CAMEL data by transmitting element 301.
Description through above execution mode; The those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform; Can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. realize the professional method of switching for one kind, it is characterized in that, when user equipment (UE) is switched in the circuit domain process by packet domain:
The user who carries the mobile network enhancing logical that mobile switching centre's reception mobile management entity sends uses the handoff request of CAMEL data;
Said mobile switching centre obtains the CAMEL data of said UE from said handoff request;
Said mobile switching centre is that said UE carries out the business switching according to said CAMEL data.
2. the method for claim 1 is characterized in that,, mobile management entity also comprises before sending the message of carrying the CAMEL data to mobile switching centre,
The message of the request CAMEL data that mobile management entity sends to home subscriber server HSS or attaching position register HLR,
Mobile management entity receives that HSS or HLR send the message of carrying the CAMEL data.
3. method as claimed in claim 2 is characterized in that, said method also comprises:
Carry capability information of user facility and/or the capability information of said UE in the message of described request CAMEL data,
HSS or HLR will send to mobile management entity with the CAMEL data of capability information of user facility and/or capability information corresponding service according to said capability information of user facility and/or capability information.
4. method as claimed in claim 3 is characterized in that, said method also comprises:
The CAMEL data that HSS or HLR filter said UE according to said capability information of user facility and/or capability information, the CAMEL data of acquisition and capability information of user facility and/or capability information corresponding service.
5. method as claimed in claim 2 is characterized in that,
Said CAMEL data are handed down to mobile switching centre as individual cells, perhaps
Said CAMEL data are sent mobile switching centre through the cell that carries the CAMEL data.
6. method as claimed in claim 5 is characterized in that, wherein said CAMEL data are specially through the step that the cell that carries the CAMEL data sends mobile switching centre:
HSS brings mobile management entity through said continuous voice call territory conversion VDN number through expansion with it; Perhaps
HSS gives mobile management entity with the CAMEL data, mobile management entity expansion VDN number, and, give mobile switching centre with the VDN number that carries the CAMEL data through handoff request message.
7. the method for claim 1; It is characterized in that; Subscriber equipment is current to carry out speech business; Further carried continuous voice call territory conversion VDN number in the said handoff request, then said mobile switching centre is that said UE carries out the professional step of switching and is specially according to said CAMEL data
Said mobile switching centre is that said UE carries out the speech business switching according to said CAMEL data and VDN number.
8. a mobile switching centre is characterized in that, comprises receiving element, acquiring unit, and processing unit, wherein,
Receiving element is used to receive the handoff request that the user who carries the mobile network enhancing logical that mobile management entity sends uses the CAMEL data;
Acquiring unit is used for obtaining from described handoff request message the CAMEL data of user equipment (UE);
Processing unit, being used for according to said CAMEL data is that said UE carries out the business switching.
9. a mobile management entity is characterized in that, comprises receiving element, transmitting element, wherein,
Said transmitting element is used for sending the request that the user that obtains the mobile network enhancing logical uses the CAMEL data to home subscriber server HSS or attaching position register HLR, and sends the CAMEL data that receiving element is received,
Receiving element is used to receive the CAMEL data from HSS or HLR;
Further comprise encapsulation unit; Said encapsulation unit; The independently CAMEL cell of data that is used for receiving element is received is encapsulated into non-CAMEL cell; Send the said non-CAMEL cell that carries the CAMEL data by transmitting element to mobile switching centre, so that said mobile switching centre is that said UE carries out the business switching according to said CAMEL data.
10. a communication system is characterized in that, comprises mobile switching centre, mobile management entity, wherein,
Mobile management entity is used for sending the handoff request that the user who carries the mobile network enhancing logical uses the CAMEL data to mobile switching centre;
Mobile switching centre, be used to receive said handoff request after, from described handoff request, obtain the CAMEL data of user equipment (UE), and carry out session according to the CAMEL data of UE and switch.
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| CN2008100677613A CN101605318B (en) | 2008-06-13 | 2008-06-13 | Method, device and system for realizing service switching |
| PCT/CN2009/072211 WO2009149656A1 (en) | 2008-06-13 | 2009-06-10 | Method, device and system for implementing service handover |
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| CN2008100677613A CN101605318B (en) | 2008-06-13 | 2008-06-13 | Method, device and system for realizing service switching |
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| CN102612102B (en) * | 2011-01-19 | 2017-06-06 | 中兴通讯股份有限公司 | CS domains control network element obtains the method and system of the information of ps domain control network element |
| WO2013114158A1 (en) * | 2012-01-31 | 2013-08-08 | Nokia Corporation | Method and apparatus for facilitating communication session continuity |
| US20140269611A1 (en) * | 2013-03-14 | 2014-09-18 | T-Mobile Usa, Inc. | Communication Handovers from Networks Using Unlicensed Spectrum to Circuit-Switched Networks |
| CN104507129B (en) * | 2014-12-03 | 2018-01-05 | 中国联合网络通信集团有限公司 | A kind of SRVCC trigger flows method, mobile management entity and base station |
| WO2019101217A1 (en) * | 2017-11-27 | 2019-05-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Systemand user equipment |
| CN110020765B (en) * | 2018-11-05 | 2023-06-30 | 创新先进技术有限公司 | Service flow switching method and device |
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| WO2009149656A1 (en) | 2009-12-17 |
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