CN101472332A

CN101472332A - Method, system and device for negotiating CSoPS capability

Info

Publication number: CN101472332A
Application number: CNA2007103069831A
Authority: CN
Inventors: 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2009-07-01
Anticipated expiration: 2027-12-29
Also published as: CN101472332B

Abstract

The embodiment of the invention discloses a method for CSoPS capability negotiation. The method comprises the following steps: MME receives a request message sent by user equipment; the MME judges whether CSoPS capability information of EU is included in the request message; if the judged result shows that the CSoPS capability information is included, the MME selects one CSoPS capability for UE according to the CSoPS capability information reported by UE and network configuration information. The embodiment of the invention ensures that UE and network side equipment can negotiate the service capability of CSoPS, so that different UE in the same EPS network adopting various CSoPS frameworks to fulfill service can be ensured, and one UE in various networks adopting various CSoPS frameworks to fulfill service can be ensured.

Description

A kind of CSoPS capability negotiation mthods, systems and devices

Technical field

The present invention relates to the mobile communication technology field, particularly relate to a kind of CSoPS capability negotiation mthods, systems and devices.

Background technology

In the 2G/3G network, there are CS (Circuit Switch, circuit switching) territory and PS (PacketSwitch, packet switching) territory, handle the professional and PS territory business in CS territory respectively.Wherein, in the CS territory, the core network control surface entity is moving exchanging center MSC (Mobile Switching Center, mobile switching centre), and in the PS territory, the core network control surface entity is SGSN (Serving GPRS Support Node, a Serving GPRS Support Node).There is Gs interface between SGSN and the MSC, UE (User Equipment, subscriber equipment) can carry out GPRS (the General Packet Radio Service of associating, GPRS) and IMSI (International Mobile Subscriber Identity, international mobile subscriber identity) attachment flow, when UE is attached to PS territory SGSN, also can be attached on the MSC of CS territory by Gs interface.For CS territory business (for example CS speech business), MSC can send beep-page message to SGSN by Gs interface, is initiated to the paging of UE by SGSN by the PS territory again, after UE receives this beep-page message, can forward the CS territory to and carry out page response, and finish the subsequent treatment of CS territory business.As shown in Figure 1, be prior art GPRS/UMTS (Universal MobileTelecommunications System, universal mobile telecommunications system) network architecture diagram schematic diagram.

EPS (Evolved Packet System, the grouping system of evolution) also is provided in the prior art network, and EPS is the communication network of an all-IP, and its structural diagrams intention as shown in Figure 2.EPS server network control surface entity is MME (Mobility Management Entity, a mobile management entity).EPS is by the PS territory evolution of 2G/3G.

Owing in the EPS network architecture, do not have the CS territory, therefore in the EPS network, need to finish the business that original CS territory provides by IMS (IP Multimedia Subsystem, IP Multimedia System).Need handle by the IMS speech business in the EPS network such as traditional CS speech business.Therefore, after UE is attached to MME in the EPS network, need set up transmitting SIP (SessionInitiation Protocol for the IMS territory, conversation initialized protocol) carrying of signaling, UE utilizes this carrying to be accomplished to the registration in IMS territory, when needs carry out the IMS business, for example need to initiate the IMS voice, then UE is to the controlled entity S-CSCF in IMS territory (Service-Call Session Control Function, service-call session control function) sends call signaling, P-GW (Packet Data Network Gateway in call establishment in the packet network of S-CSCF indication evolution, grouped data network gateway) initiates carrying and set up flow process, set up a carrying that is used for transmitting the IMS voice and finish follow-up speech business.

Yet present IMS network is compared with traditional CS network and is also seemed very immature, and with regard to speech business, all there are gap in multinomial key index (as time delay etc.) and CS network; And with the professional supporting system of IMS also imperfection, such as for charge system, the charge system in CS territory can be chargeed by second, but the charge system of IMS does not also reach this requirement.Therefore IMS also needs certain transient process to substituting fully of traditional C territory business.

Because the EPS network must be finished business by the IMS network, comprise that traditional CS business also need be finished by the IMS network, it is excessive that this will force operator to drop at the networking initial stage, because a lot of CS business is mobile network basis business, for example speech business, and the IMS system is in order to provide these basic functions, need a plurality of systems of one-time construction, as charge system, service server system etc., this also can cause building time long simultaneously, thereby delays network design speed.In addition, for incumbent operator, there is the 2G/3G network mostly, wherein the PS territory can evolve to the EPS network, and very perfect through the CS territory of repeatedly adjusting, but can't use in the packet network stage of evolution, this has just caused the huge waste of the existing investment of operator.

Therefore, operator has proposed the requirement by EPS Network Transmission CS business, i.e. CSoPS (CSDomain Services over evolved PS access is by evolution Packet Based Network transmission CS business).Its main thought is exactly that UE has the CS core net now by the EPS network insertion, and when existing CS professional, UE can get back to the GPRS/UMTS network according to the indication of CS core net and finish the CS business, perhaps still finishes the CS business by EPS network insertion CS core net.These two methods are two branches of present major technique, and another kind of typical technical solution is called as the CSoPS scheme for combining, this scheme combines the advantage of these two schemes, and supports the smooth evolution between the different schemes, thereby can satisfy the demand of different operators, different phase.As shown in Figure 3, be the Organization Chart of CSoPS scheme for combining in the prior art.

In the CSoPS of prior art scheme for combining, the MME of EPS network communicates by the MSC/VLR (Visitor Location Register, VLR Visitor Location Register) in Z2 interface and CS territory, and the Z2 interface has the similar function of Gs interface; S-GW (Serving Gateway, gateway)/PDN-GW (Packet Data Network Gateway, grouped data network gateway) is connected to MSC/VLR by the SGi interface; MSC/VLR can also be connected to PCRF (Policy Charging Rules Function, policy charging rule function) by Rx interface as application server; And communicate by the Z1 reference point between UE and the MSC/VLR.Wherein, but this CSoPS scheme for combining can be divided into two frameworks of smooth evolution:

Framework one: MSC/VLR only is connected to the EPS network by the Z2 interface, and promptly Rx interface, SGi interface and Z1 interface do not exist.The Z2 interface only has the Gs interface similar functions under this framework.Among the present invention this framework is referred to as " basic framework of CSoPS scheme for combining ", abbreviates " basic framework " as.

Framework two: as shown in Figure 3, MSC/VLR has Z1, Z2, SGi and Rx total interface, also need MSC/VLR is upgraded to the MSC/VLR (eMSC/VLR) of evolution this moment, the Z2 interface is at least also supported the handoff functionality of CS business except having the Gs interface function at this moment.Among the present invention this framework is referred to as " the expansion framework of CSoPS scheme for combining ", abbreviates " expansion framework " as.

Under above-mentioned two kinds of frameworks, UE can adopt identical method to be attached to the MSC/VLR in CS territory by the Z2 interface when the EPS network attachment, but follow-up business may adopt diverse ways to finish.Under at basic framework, if UE need initiate the CS business, then UE at first needs to switch in the 2G/3G network coverage, is connected to MSC/VLR by the 2G/3G network then, carries out follow-up business, promptly is connected to MSC/VLR by the A/Iu interface among Fig. 3.If under basic framework, carry out callee function, then MSC/VLR need pass through Z2 interface requirement MME this UE of paging in the EPS network, after this UE receives paging, also need to switch to the 2G/3G network, and in the 2G/3G network, carry out page response, and finish subsequent treatment, after the CS service ending, UE switches back the EPS network again.

But under the expansion framework, after UE is attached to the EPS network, need set up the EPS carrying of transmission 24.008 signalings for UE, UE and MSC/VLR can utilize this EPS carrying to finish Signalling exchange.Therefore, when UE need initiate the CS business, can directly send call signaling to MSC/VLR, and finish subsequent treatment by this EPS carrying; When the expansion framework issues living callee function, MSC/VLR also can directly send call signaling by this EPS carrying to UE, and finishes subsequent treatment.

Therefore, when the different framework of network using, network and UE are different to the processing method of business, UE need switch to the 2G/3G network coverage under basic framework, and then be connected to MSC/VLR by the 2G/3G network, and UE can directly send call signaling by the EPS carrying of setting up to MSC/VLR under the expansion framework.And in a particular network, network both may support that expanding framework also may support basic framework, but also may only support basic framework and not support to expand framework by network, perhaps network is not supported the CSoPS function, the same UE that also may exist two kinds of frameworks to support in this network perhaps only supports a kind of UE of framework traffic handing capacity.

In realizing embodiment of the invention process, the inventor finds that there are the following problems at least in the prior art: because network side may be supported multiple framework, also exist the UE that supports multiple framework in the existing network, and the follow-up processing flow for different network architecture UE is also different, network side and UE can't realize the negotiation of CSoPS ability in the prior art, therefore can cause the confusion of UE follow-up processing flow.

Summary of the invention

The problem that the embodiment of the invention will solve provides a kind of CSoPS capability negotiation mthods, systems and devices, solves the technological deficiency that can't realize the CSoPS capability negotiation of network side and UE in the prior art.

For achieving the above object, the embodiment of the invention provides a kind of CSoPS capability negotiation method, may further comprise the steps:

Mobile management entity MME receives the request message that user equipment (UE) sends;

Described MME judges the CSoPS ability information that whether comprises described UE in the described request message;

Described judged result is when comprising the CSoPS ability information of described UE, and described MME is that described UE selects a kind of CSoPS ability according to CSoPS ability information and the network configuration information that described UE reports, and notifies described UE with selection result.

The embodiment of the invention also provides a kind of CSoPS capability negotiation system, comprises MME and at least one UE,

Described UE is used for sending a request message to described MME, and receives the CSoPS ability that described MME is described UE selection;

Described MME is used to receive the request message that described UE sends, and judges the CSoPS ability information that whether comprises described UE in the described request message; Described judged result is when comprising the CSoPS ability information of described UE, and the CSoPS ability information and the network configuration information that report according to described UE are that described UE selects a kind of CSoPS ability, notify described UE with selection result.

The embodiment of the invention also provides a kind of mobile management entity MME, comprising:

The request message receiver module is used to receive the request message that UE sends;

Judge module is used for judging whether request message that described request message sink module receives comprises the CSoPS ability information of described UE;

Select module, be used for when described judge module is judged as the CSoPS ability information that comprises described UE, the CSoPS ability information and the network configuration information that report according to described UE are that described UE selects a kind of CSoPS ability.

Notification module is used for notifying described UE with the selection result of described selection module.

The embodiment of the invention also provides a kind of user terminal UE, comprising:

The request message sending module is used for sending a request message to MME, includes the CSoPS ability information of described UE in the described request message;

The response message receiver module is used to receive the response message that described MME returns, and including described MME in the described response message is the CSoPS ability that described UE selects;

Processing module, being used for according to described MME is that the CSoPS ability that described UE selects is carried out subsequent treatment.

The technical scheme of the embodiment of the invention has the following advantages, the embodiment of the invention makes UE and network equipment can consult the CSoPS professional ability, like this for supporting basic framework can support to expand the EPS network of framework again, can select appropriate C SoPS ability for UE and notify this UE with different CSoPS abilities, thereby guaranteed that different UEs can adopt different CSoPS frameworks to finish business in same EPS network, can guarantee that also same UE adopts different CSoPS frameworks to finish business in heterogeneous networks.

Description of drawings

Fig. 1 is a prior art GPRS/UMTS network architecture diagram schematic diagram;

Fig. 2 is the structure chart of the packet network EPS of prior art evolution;

Fig. 3 is a prior art CSoPS scheme for combining Organization Chart;

Fig. 4 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention one;

Fig. 5 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention two;

Fig. 6 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention three;

Fig. 7 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention four;

Fig. 8 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention five;

Fig. 9 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention six;

Figure 10 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention seven;

Figure 11 is the CSoPS capability negotiation method flow diagram of the embodiment of the invention eight;

Figure 12 is an embodiment of the invention CSoPS capability negotiation system construction drawing.

Embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:

The embodiment of the invention has proposed to carry out between multiple UE and the network side method of CSoPS service capability negotiation, initiatively send the CSoPS ability information that described UE supports by embodiment of the invention UE to network side, thereby make network side select suitable mode to carry out subsequent treatment according to the CSoPS ability of UE support and the UE that is configured to of network side self, as network side support expansion framework, and UE also supports to expand framework, then network side can notify the UE network side to support the CS business in the EPS network processes, and therefore this UE need not to switch to the 2G/3G network when handling the CS business.

In embodiments of the present invention, can various definitions be arranged to the CSoPS ability of UE or network side, but these are defined on the essential meaning is identical, as support basic framework then to mean and support the professional 2G/3G network processes of switching back of CS, support the expansion framework to mean that then requirement CS business is in the EPS network processes.The ability of UE and network interaction can include but not limited to following similar description in the embodiment of the invention:

The CSoPS ability of definition 1:UE: only support basic framework; Only support the expansion framework; Support basic framework and expansion framework simultaneously; Both all do not support.The CSoPS ability of network: only support basic framework; Support expansion framework (supporting basic framework simultaneously); Both all do not support.

The CSoPS ability of definition 2:UE: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports; Do not support the CS business at the EPS network.The CSoPS ability of network: only support the professional 2G/3G of returning of CS to handle; Support the CS business EPS network processes (supporting the professional 2G/3G of returning of CS to handle simultaneously); The EPS network is not supported the CS business.

It is identical more than being defined on the essential meaning, requires the professional 2G/3G of returning of CS to handle under the basic framework; Require the CS business in the EPS network processes under the expansion framework.In the following embodiments in order to express easily, adopt the description of definition 2 to describe.

As shown in Figure 4, CSoPS capability negotiation method flow diagram for the embodiment of the invention one, this embodiment carries out the negotiation of CSoPS ability between UE and the EPS network by UE to the attachment flow of EPS network, and UE is registered to MME and (e) MSC/VLR respectively by the combined registering flow process in this embodiment.Specifically may further comprise the steps:

Step S401, UE sends Attach Request message to MME, initiates the EPS attachment flow, and wherein this Attach Request message includes the CSoPS ability information of UE.Wherein, combined registering can be divided into explicit and two kinds of methods of implicit expression, and promptly UE initiatively indicates to CS equipment of the core network (e) MSC/VLR registration (explicit) or MME and replaces the registration (implicit expression) of UE initiation to (e) MSC/VLR according to the UE ability.

Explicit registration: UE can judge EPS network support CSoPS function by broadcast, promptly can insert CS equipment of the core network (e) MSC/VLR by the Z2 interface, thereby can initiate the associating Attach Request message to MME, a kind of typical processing method is to carry the type of attachment cell in the EPS Attach Request message, and value is adhered to for associating EPS/IMSI.

Also can not indicate in the Attach Request message that implicit registration: UE sends and to be registered to the CS core net, and judge whether that according to the ability of network and UE needs are initiated to the registration in CS territory by the Z2 interface by MME.At this moment, UE need carry the ability of whether supporting CSoPS in the EPS Attach Request message.

In embodiments of the present invention, no matter UE adopts the explicit still combined registering flow process of implicit expression, and the CSoPS ability information that needs to carry UE in the EPS Attach Request message is promptly above-mentioned: UE only supports the professional 2G/3G of returning of CS to handle; UE only supports the CS business in the EPS network processes; The UE both supports; Or UE does not support CS business etc. in the EPS network.United registration method for implicit expression, as long as the UE CSoPS ability information of carrying be not " the EPS network not in support CS business " time, then MME just can replace UE to be initiated to the location registration process in CS territory, if the CSoPS ability information that UE carries is " supporting the CS business in not at the EPS network ", then MME does not need to replace UE to be initiated to the location registration process in CS territory.

Step S402 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S403, MME sends location update request message to (e) MSC/VLR.

For explicit registration: when the type of attachment in the Attach Request message that MME receives is adhered to for associating EPS/IMSI or similarly indicated, and network also supports the CS business, then needs execution in step S403～step S405.

For implicit registration: when UE did not indicate MME to be initiated to the registration of CS core net, whether MME may replace UE to initiate register flow path according to UE ability and carrier policy decision.When carrying UE support CSoPS ability in the Attach Request message that UE sends, (can be that UE only supports the professional 2G/3G of returning of CS to handle promptly; UE only supports the CS business in the EPS network processes; The UE both supports), so long as not UE " the EPS network not in support CS business ", and network also supports the CS business, then MME just can replace UE to be initiated to the location update request message of CS core net, i.e. execution in step S403～step S405.

Step S404 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S405, (e) MSC/VLR sends the position renewal to MME and accepts message, can carry (e) MSC/VLR in the message is TMSI (the Temporary Mobile Station Identity that UE distributes, Temporary Mobile Station Identity) and corresponding LAI (Location Area Identifier, lane place identification code).

Step S406 carries out default bearer and sets up flow process between MME and the SAE GW.Wherein need to prove and do not have precedence relationship between this step S406 and step S403～step S405, also can require the default bearer of first execution in step S406 to set up flow process, in this flow process, MME can obtain the IP address of UE, the position of execution in step S403～step S405 new technological process more then, this moment, MME in step S403 sent to the IP address that can carry UE in the location update request message of (e) MSC/VLR and service related information (such as port numbers, this port numbers can be distributed by MME or SAE GW), (e) MSC/VLR obtains and writes down IP address and the service related information of UE in this step.

Step S407, MME send to adhere to UE and accept message, and this adheres to accepts to include in the message CSoPS ability that MME is the UE selection.

(for example: the EPS network only supports the professional 2G/3G of returning of CS to handle to MME according to the CSoPS ability of UE and carrier policy; The EPS network only supports the CS business in the EPS network processes; EPS network both supports; The EPS network is not supported the CS business) select a kind of (situation about supporting for the both for this UE, can provide a kind of preferred mode in the carrier policy), and the CSoPS ability information that will select is included in to adhere to and accepts to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

If carried out the registration in CS territory, then this adheres to and accepts can also to comprise in the message that (e) MSC/VLR is information such as the TMSI that distributes of UE and LAI.

Step S408, UE send to adhere to MME and finish message.

Step S409, MME and SAE GW starting update load bearing flow process.

Step S410, if (e) MSC/VLR is that UE has distributed new TMSI among the step S405, then MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in Figure 5, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention two, this embodiment finishes the negotiation of CSoPS ability by mutual CSoPS ability between UE and the EPS network in the EPS attaching process.EPS adhere to finish after, UE can carry out independent CS register flow path.

Step S501, UE sends Attach Request message to MME, initiates the EPS attachment flow, carries the CSoPS ability information of UE in this Attach Request message, and is promptly above-mentioned: UE only supports the professional 2G/3G of returning of CS to handle; UE only supports the CS business in the EPS network processes; The UE both supports; Or UE does not support the CS business at the EPS network.

Step S502 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S503 carries out default bearer and sets up flow process between MME and the SAE GW.

Step S504, MME send to adhere to UE and accept message, and this adheres to accepts to carry in the message CSoPS ability that MME selects for this UE.(for example: only support the professional 2G/3G of returning of CS to handle be specially MME according to the CSoPS ability of UE and carrier policy; Only support the CS business in the EPS network processes; The both supports; Do not support the CS business at the EPS network) select a kind of CSoPS ability (situation about supporting for the both for this UE, can provide a kind of preferred mode in the carrier policy), and the CSoPS ability information that will select is included in to adhere to and accepts to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

Step S505, UE send to adhere to MME and finish message.

Step S506, MME and SAE GW starting update load bearing flow process.

Step S507, UE send to the location update request message of CS domain core net (e) MSC/VLR registration to MME.

UE can judge in the current EPS network whether MME has and (e) the Z2 interface capability of MSC/VLR by the broadcast of system, if exist, then can initiate more new technological process of independent CS position; Network side provides CSoPS ability to UE among the step S504 in embodiments of the present invention, and therefore when EPS network support CS was professional, UE can initiate more new technological process of independent CS position.

If UE does not support the CS business at the EPS network, or the EPS network do not support the CS business, then step S507 and after step does not all need to carry out.

Step S508, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S503 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S509 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S510, (e) MSC/VLR sends the position renewal to MME and accepts message, and the position is upgraded and is accepted can carry in the message TMSI and the corresponding LAI that (e) MSC/VLR is the UE distribution.

Step S511, MME sends the position renewal to UE and accepts message.

Step S512, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S513, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in Figure 6, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention three, among this embodiment, UE need not to report the CSoPS ability of self, is accepted in the message adhering to by the network based carrier policy of EPS, unilaterally notifies UE current CSoPS ability.

Step S601, UE sends Attach Request message to MME, initiates the EPS attachment flow.

Step S602 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S603 carries out default bearer and sets up flow process between MME and the SAE GW.

Step S604, MME sends to adhere to UE and accepts message, this adheres to accepts to carry the CSoPS ability that operator is unilaterally selected for UE according to carrier policy in the message, and wherein carrier policy is: the EPS network only supports that the professional 2G/3G of returning of CS handles, the EPS network only supports the CS business in the EPS network processes; The above-mentioned both of EPS network supports or the EPS network is not supported the CS business.MME is according to the strategy of current operator, for this UE selects a kind of CSoPS ability, if situation for EPS network both supports, a kind of preferred mode can be provided in the carrier policy, and the CSoPS ability information that will select is included in to adhere to and accepts in the message, requires UE to finish subsequent treatment according to this ability indication.

Step S605, UE send to adhere to MME and finish message.

Step S606, MME and SAE GW starting update load bearing flow process.

Step S607, UE send to the location update request message of CS domain core net (e) MSC/VLR registration to MME.

UE can judge in the current EPS network whether MME has and (e) the Z2 interface capability of MSC/VLR by the broadcast of system, if exist, then can initiate more new technological process of independent CS position; Network side provides CSoPS ability to UE in embodiment of the invention step S604, and therefore when EPS network support CS was professional, UE can initiate more new technological process of independent CS position.

If UE does not support the CS business at the EPS network, perhaps the EPS network is not supported the CS business, and then step S607 and step afterwards all do not need to carry out.

Step S608, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S603 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S609 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S610, (e) MSC/VLR sends the position renewal to MME and accepts message, and can carry (e) MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S611, MME sends the position renewal to UE and accepts message.

Step S612, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S613, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in Figure 7, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention four, among this embodiment, UE finishes the mutual of CSoPS ability in the CSoPS ability information that more reports UE self to the position of CS domain core net in the new technological process with the EPS network.

Step S701, UE sends Attach Request message to MME, initiates the EPS attachment flow.

Step S702 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S703 carries out default bearer and sets up flow process between MME and the SAE GW.

Step S704, MME send to adhere to UE and accept message, and indication UE carries out more new technological process of position.If MME has the Z2 interface with MSC/VLR in the current network, then MME can adhere at EPS and accepts that indication UE finishes more new technological process of independent CS position in the message, specifically can be by cell in the message or bit indication.

Step S705, UE send to adhere to MME and finish message.

Step S706, MME and SAE GW starting update load bearing flow process.

Step S707, UE send to the location update request message of CS domain core net (e) MSC/VLR registration to MME.In embodiments of the present invention after UE receives relevant indication, the CS professional ability that need in location update request message, carry UE, promptly above-mentioned: UE only supports the professional 2G/3G of returning of CS to handle; UE only supports the CS business to support in EPS network processes or UE both.If UE does not support the CS business at the EPS network, then step S707 and step afterwards all do not need to carry out.

Step S708, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S703 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S709 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S710, (e) MSC/VLR sends the position renewal to MME and accepts message, and can carry (e) MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S711, MME sends the position renewal to UE and accepts message, and this position is upgraded and is accepted to carry in the message CSoPS ability that MME selects for this UE.MME according to the CSoPS ability of UE and carrier policy (for example: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports or the EPS network is not supported the CS business) select a kind of CSoPS ability (for the situation of both's support for this UE, can provide a kind of preferred mode in the carrier policy), and the CSoPS ability information that will select is included in the position and upgrades and to accept to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

Step S712, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S713, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in Figure 8, CSoPS capability negotiation method flow diagram for the embodiment of the invention five, this embodiment moves the flow process that back and new MME carries out the CSoPS ability for the UE occurrence positions, because if finish UE occurrence positions under the EPS coverage of registration moves at the EPS network, new MME may belong to different PLMN with original MME, and the CSoPS ability of EPS network may be different in different PLMN, therefore requires UE to consult the CSoPS ability again after entering new PLMN.When UE enters the EPS network first after the 2G/3G network attachment, also can carry out the tracing section updating flow process and finish in the adhering to of EPS network, in this tracing section updating flow process, also need to finish the negotiation of the CSoPS ability of UE and network.When if the EPS network has the CSoPS ability, in the tracing section updating flow processing, also can proceed to the location area updating flow process in CS territory, comprised location area updating flow process among this embodiment, but this flow process not essential to the CS territory.

Step S801, UE sends the tracing section updating request message to MME, the initiating updating of tracking area flow process, wherein this tracing section updating request message includes the CSoPS ability information of UE.

Similar with attachment flow, also can carry out associated update in the tracing section updating flow process, and this associated update also can be divided into explicit and two kinds of methods of implicit expression, and promptly UE initiatively indicates to CS equipment of the core network MSC/VLR renewal (explicit) or MME and replaces the renewal (implicit expression) of UE initiation to MSC/VLR.

Explicit renewal: UE can judge EPS network support CSoPS function by means such as broadcasts, promptly can insert CS equipment of the core network (e) MSC/VLR by the Z2 interface, if current lane place changes, then UE can initiate associating tracking area/location area updating flow process to MME, a kind of typical processing method is to carry the updating type cell in EPS tracing section updating request message, and value is associating tracking area/location area updating.

Implicit expression is upgraded: the tracing section updating request message that UE sends also can not indicate whether to be initiated to the location area updating in CS territory, finishes this processing and judge whether to act on behalf of UE by MME.

No matter UE adopts explicit renewal in embodiments of the present invention still is the associating tracing section updating flow process that implicit expression is upgraded, and the CS professional ability that needs to carry UE in EPS tracing section updating request message is promptly above-mentioned: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports; Or do not support the CS business at the EPS network.For the implicit expression method for updating, when the CS professional ability of carrying as UE was " not supporting the CS business at the EPS network ", MME can not be initiated to the renewal in CS territory and handle.

Step S802, if change has taken place MME, then the MME of new side sends context request message to the MME of old side.If the residing PLMN of the MME of new side supports the CSoPS ability, then can in this message, comprise this ability indication, require the MME of old side that this UE is provided original CSoPS ability of consulting.If the residing PLMN of MME of new side does not support the CSoPS ability, then also can in this message, indicate the PLMN at new side MME place not support CSoPS, perhaps in this message, do not comprise this indication.

Step S803, the MME of old side sends context response information to the MME of new side.If the PLMN at the MME place of the new side of indication supports CSoPS in the context request message of receiving, and UE write down the CSoPS ability after consulting in the MME of old side, then needs to comprise the CSoPS ability after this UE negotiation in this response message.If do not indicate the PLMN at the MME place of new side to support CSoPS in the context request message of receiving, perhaps indicate the PLMN at new side MME place not support CSoPS, but UE has write down the CSoPS ability after consulting in the MME of old side, then also can comprise the CSoPS ability after this UE consults in this response message.

Step S804, the MME of new side sends context acknowledgement message to the MME of old side.

Step S805 sets up carrying if desired, and then new side MME and SAE GW initiate carrying and set up flow process.

Step S806 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S807, MME sends location update request message to (e) MSC/VLR.

If explicit renewal: current during for associating tracking area/location area updating when indication in the tracing section updating request message that MME receives, and the EPS network support CS business at new MME place then needs execution in step S807～step S809.

If implicit expression is upgraded: when the position that UE does not indicate MME to be initiated to the CS core net was upgraded, whether MME may replace UE to initiate the location area updating flow process according to UE ability and carrier policy and current location area information decision.Promptly in the tracing section updating request message that UE sends, carry UE and support that the CSoPS ability (handle for only supporting the professional 2G/3G of returning of CS by value; Only support the CS business in the EPS network processes; The both supports), and the residing PLMN of MME also supports the CSoPS ability, then MME need determine needs whether to replace position that UE is initiated to the CS core net more new technological process, i.e. execution in step 807～step 809 according to the lane place situation of current UE.Be specially: if MME judges present position-region variation has taken place, when perhaps change had taken place MME, MME need act on behalf of more new technological process of position that UE is initiated to (e) MSC/VLR.

Carry out between step S808, (e) MSC/VLR and the HLR/HSS and upgrade the position flow process, obtain the subscription data of UE in the CS territory.

Step S809, (e) MSC/VLR send the position renewal to MME and accept message, and can carry (e) MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S810, MME send tracing section updating to UE and accept message.MME according to the CSoPS ability of UE and carrier policy (for example: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports or the EPS network is not supported the CS business) select a kind of CSoPS ability (for the situation of both's support for this UE, can provide a kind of preferred mode in the carrier policy), and the ability information that will select is included in tracing section updating and accepts to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

As a kind of optional situation, because the MME of new side can obtain the CSoPS ability that UE consults in old side from the MME of old side in step S803, therefore, if new side MME is consistent with the ability that old side MME provides for the CSoPS ability that this UE selects, accept not comprise this CSoPS ability in the message then that UE still adopts original C SoPS ability to carry out follow-up business at this tracing section updating.If ability is inconsistent, then new side MME needs the CSoPS ability that this MME selects is notified to UE, the special residing PLMN of new side MME that works as does not support CSoPS, and the residing PLMN of old side MME is when supporting CSoPS, and new side MME need indicate the current EPS network of UE not support CSoPS (can adopt " the EPS network is not supported the CS business " to indicate).

Step S811, UE send tracing section updating to MME and finish message.UE receives that the tracing section updating that network sends accepts in the message, if comprise the CSoPS ability, then writes down this ability; If do not comprise the CSoPS ability, and UE had write down the CSoPS ability originally, then adopt original C SoPS ability; If do not comprise the CSoPS ability, and UE do not write down the CSoPS ability originally yet, and then expression can not be carried out the CS business in this EPS network; If the CSoPS ability that comprises is " the EPS network is not supported the CS business ", then UE need remove the CSoPS ability that has write down, and can not carry out the CS business in the EPS network coverage.

If (e) MSC/VLR is that UE has distributed new TMSI among the step S812 step S809, then MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in Figure 9, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention six, in the tracing section updating process, UE and EPS network interaction CSoPS ability are finished the negotiation of CSoPS ability among this embodiment.

Step S901, UE sends the tracing section updating request message to MME, the initiating updating of tracking area flow process, this tracing section updating request message carries the CSoPS ability of UE.UE needs to carry the CS professional ability of UE in the tracing section updating request message, promptly above-mentioned: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports; Or do not support the CS business at the EPS network.

Step S902, if change has taken place MME, then the MME of new side sends context request message to the MME of old side.If the residing PLMN of the MME of new side supports the CSoPS ability, then can in this message, comprise this ability indication, require the MME of old side that this UE is provided original CSoPS ability of consulting.If the residing PLMN of MME of new side does not support the CSoPS ability, then also can in this message, indicate the PLMN at new side MME place not support CSoPS, perhaps in this message, do not comprise this indication.

Step S903, the MME of old side sends context response information to the MME of new side.If the PLMN at the MME place of the new side of indication supports CSoPS in the context request message of receiving, and UE write down the CSoPS ability after consulting in the MME of old side, then needs to comprise the CSoPS ability after this UE negotiation in this response message.If do not indicate the PLMN at the MME place of new side to support CSoPS in the context request message of receiving, perhaps indicate the PLMN at new side MME place not support CSoPS, but UE has write down the CSoPS ability after consulting in the MME of old side, then also can comprise the CSoPS ability after this UE consults in this response message.

Step S904, the MME of new side sends context acknowledgement message to the MME of old side.

Step S905 sets up carrying if desired, and then new side MME and SAE GW initiate carrying and set up flow process.

Step S906 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S907, MME sends tracing section updating to UE and accepts message, and this tracing section updating accepts to carry in the message CSoPS ability that MME selects for this UE.(for example: the EPS network only supports the professional 2G/3G of returning of CS to handle to MME according to the CSoPS ability of UE and carrier policy; The EPS network only supports the CS business in the EPS network processes; EPS network both supports or the EPS network is not supported the CS business) select a kind of CSoPS ability (wherein for the situation of both's support for this UE, can provide a kind of preferred mode in the carrier policy), and the CSoPS ability information that will select is included in tracing section updating and accepts to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

As a kind of optional situation, because the MME of new side can obtain the CSoPS ability that UE consults in old side from the MME of old side in step step S903, therefore, if new side MME is consistent with the ability that old side MME provides for the CSoPS ability that this UE selects, accept not comprise this CSoPS ability in the message then that UE still adopts original C SoPS ability to carry out follow-up business at this tracing section updating.If ability is inconsistent, then new side MME needs the CSoPS ability that this MME selects is notified to UE, special do not support CSoPS as the residing PLMN of new side MME, and the residing PLMN of old side MME is when supporting CSoPS, newly side MME need indicate the current EPS network of UE not support CSoPS.

Step S908, UE sends tracing section updating to MME and finishes message.UE receives that the tracing section updating that network sends accepts in the message, if comprise the CSoPS ability, then writes down this ability; If do not comprise CSoPS ability (then illustrating that new side MME is consistent with the ability that old side MME provides for the CSoPS ability that this UE selects), and UE had write down the CSoPS ability originally, then adopted the CSoPS ability of the original record of UE to get final product; If do not comprise the CSoPS ability, and UE do not write down the CSoPS ability originally yet, and then expression can not be carried out the CS business in this EPS network; If the CSoPS ability that comprises is " the EPS network is not supported the CS business ", then UE need remove the CSoPS ability that has write down, and can not carry out the CS business in the EPS network coverage.

Step S909, UE send to the location update request message of CS domain core net (e) MSC/VLR to MME.

UE can judge in the current EPS network whether MME has and (e) the Z2 interface capability of MSC/VLR by the broadcast of system, if exist, then can initiate more new technological process of independent CS position; Network side provides CSoPS ability to UE in embodiments of the present invention, so UE need initiate more new technological process of independent CS position.This position more new technological process more new technological process is consistent with existing position.

If UE does not support the CS business at the EPS network, perhaps the EPS network is not supported the CS business, and then step S909 and step afterwards all do not need to carry out.

Step S910, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S905 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S911 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S912, (e) MSC/VLR sends the position renewal to MME and accepts message, and can carry (e) MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S913, MME sends the position renewal to UE and accepts message.

Step S914, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S915, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in figure 10, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention seven, this embodiment is in the tracing section updating process, and network based strategy is accepted in the message at tracing section updating, unilaterally notifies UE current CSoPS ability.May further comprise the steps:

Step S1001, UE sends tracing section updating request message, initiating updating of tracking area flow process to MME.

Step S1002, if change has taken place MME, then the MME of new side sends context request message to the MME of old side.If the residing PLMN of the MME of new side supports the CSoPS ability, then can in this message, comprise this ability indication, require the MME of old side that this UE is provided original CSoPS ability of consulting.If the residing PLMN of MME of new side does not support the CSoPS ability, then also can in this message, indicate the PLMN at new side MME place not support CSoPS, perhaps in this message, do not comprise this indication.

Step S1003, the MME of old side sends context response information to the MME of new side.If the PLMN at the MME place of the new side of indication supports CSoPS in the context request message of receiving, and UE write down the CSoPS ability after consulting in the MME of old side, then needs to comprise the CSoPS ability after this UE negotiation in this response message.If do not indicate the PLMN at the MME place of new side to support CSoPS in the context request message of receiving, perhaps indicate the PLMN at new side MME place not support CSoPS, but UE has write down the CSoPS ability after consulting in the MME of old side, then also can comprise the CSoPS ability after this UE consults in this response message.

Step S1004, the MME of new side sends context acknowledgement message to the MME of old side.

Step S1005 sets up carrying if desired, and then new side MME and SAE GW initiate carrying and set up flow process.

Step S1006 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S1007, MME sends tracing section updating to UE and accepts message, and this tracing section updating accepts to carry in the message CSoPS ability that MME unilaterally selects for this UE according to carrier policy.MME according to the strategy of current operator (for example: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports or the EPS network is not supported the CS business), for this UE selects a kind of CSoPS ability (for the situation of both's support, can provide a kind of preferred mode in the carrier policy), and this ability information is included in tracing section updating accepts in the message, require UE to finish subsequent treatment according to this ability indication.

As a kind of optional situation, because the MME of new side can obtain the CSoPS ability that UE consults in old side from the MME of old side in step S1003, therefore, if new side MME is consistent with the ability that old side MME provides for the CSoPS ability that this UE selects, accept not comprise this CSoPS ability in the message then that UE still adopts original C SoPS ability to carry out follow-up business at this tracing section updating.If ability is inconsistent, then new side MME needs the CSoPS ability that this MME selects is notified to UE, special do not support CSoPS as the residing PLMN of new side MME, and the residing PLMN of old side MME is when supporting CSoPS, newly side MME need indicate the current EPS network of UE not support CSoPS.

Step S1008, UE send tracing section updating to MME and finish message.Receive that at UE the tracing section updating that network sends accepts in the message,, then write down this ability if comprise the CSoPS ability; If do not comprise the CSoPS ability, and UE had write down the CSoPS ability originally, then adopt original C SoPS ability; If do not comprise the CSoPS ability, and UE do not write down the CSoPS ability originally yet, and then expression can not be carried out the CS business in this EPS network; If the CSoPS ability that comprises is " the EPS network is not supported the CS business ", then UE need remove the CSoPS ability that has write down, and can not carry out the CS business in the EPS network coverage.

Step S1009, UE send to the location update request message of CS domain core net (e) MSC/VLR to MME.

UE can judge in the current EPS network whether MME has and (e) the Z2 interface capability of MSC/VLR by the broadcast of system, if exist, then can initiate more new technological process of independent CS position; In embodiments of the present invention, network side provides CSoPS ability to UE, so UE can initiate more new technological process of independent CS position.This position more new technological process more new technological process is consistent with existing position.

If UE does not support the CS business at the EPS network, or the EPS network do not support the CS business, then step S1009 and after step does not all need to carry out.

Step S1010, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S1005 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S1011 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S1012, (e) MSC/VLR sends the position renewal to MME and accepts message, and can carry MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S1013, MME sends the position renewal to UE and accepts message.

Step S1014, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S1015, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in figure 11, be the CSoPS capability negotiation method flow diagram of the embodiment of the invention eight, this embodiment is initiating the position more in the new technological process, and it is mutual that UE and EPS network are finished the CSoPS ability.May further comprise the steps:

Step S1101, UE sends tracing section updating request message, initiating updating of tracking area flow process to MME.

Step S1102, if change has taken place MME, then the MME of new side sends context request message to the MME of old side.If the residing PLMN of the MME of new side supports the CSoPS ability, then can in this message, comprise this ability indication, require the MME of old side that this UE is provided original CSoPS ability of consulting.If the residing PLMN of MME of new side does not support the CSoPS ability, then also can in this message, indicate the PLMN at new side MME place not support CSoPS, perhaps in this message, do not comprise this indication.

Step S1103, the MME of old side sends context response information to the MME of new side.If the PLMN at the MME place of the new side of indication supports CSoPS in the context request message of receiving, and UE write down the CSoPS ability after consulting in the MME of old side, then needs to comprise the CSoPS ability after this UE negotiation in this response message.If do not indicate the PLMN at the MME place of new side to support CSoPS in the context request message of receiving, perhaps indicate the PLMN at new side MME place not support CSoPS, but UE has write down the CSoPS ability after consulting in the MME of old side, then also can comprise the CSoPS ability after this UE consults in this response message.

Step S1104, the MME of new side sends context acknowledgement message to the MME of old side.

Step S1105 sets up carrying if desired, and then new side MME and SAE GW initiate carrying and set up flow process.

Step S1106 carries out between MME and the HLR/HSS and upgrades the position flow process, obtains the subscription data of UE at EPS.

Step S1107, MME sends tracing section updating to UE and accepts message.If MME has the Z2 interface with MSC/VLR in the current network, then MME can accept that indication UE finishes more new technological process of independent CS position in the message at tracing section updating, specifically can be by cell in the message or bit indication.

Step S1108, UE sends tracing section updating to MME and finishes message.

Step S1109, UE send to the location update request message of CS domain core net (e) MSC/VLR to MME.After UE receives relevant indication, the CS professional ability that need in location update request message, carry UE, promptly above-mentioned: as only to support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports; Or do not support the CS business at the EPS network.

Step S1110, MME sends location update request message by the Z2 interface to (e) MSC/VLR.

Can also be carried at the UE that obtains among the step S1105 in this message in the IP address of EPS network and service related information etc., thereby these information are offered (e) MSC/VLR.

Step S1111 (e) carries out renewal position flow process between MSC/VLR and the HLR/HSS, obtain the subscription data of UE in the CS territory.

Step S1112, (e) MSC/VLR sends the position renewal to MME and accepts message, and can carry (e) MSC/VLR in the message is TMSI and the corresponding LAI that UE distributes.

Step S1113, MME sends the position renewal to UE and accepts message.MME according to the CSoPS ability of UE and carrier policy (for example: only support the professional 2G/3G of returning of CS to handle; Only support the CS business in the EPS network processes; The both supports or the EPS network is not supported the CS business) select a kind of CSoPS ability (for the situation of both's support for this UE, can provide a kind of preferred mode in the carrier policy), and this ability information is included in the position upgrades and to accept to send in the message UE, UE writes down this negotiation result, and carry out subsequent treatment (, whether return the 2G/3G network according to this ability indication decision and carry out page response and finish follow-up business and handle) such as after receiving the EPS beep-page message according to this CSoPS ability.

Equally in embodiments of the present invention, as a kind of optional situation, because the MME of new side can obtain the CSoPS ability that UE consults in old side from the MME of old side in step S1103, therefore, if new side MME is consistent with the ability that old side MME provides for the CSoPS ability that this UE selects, accept not comprise this CSoPS ability in the message then that UE still adopts original C SoPS ability to carry out follow-up business at this tracing section updating.If ability is inconsistent, then new side MME needs the CSoPS ability that this MME selects is notified to UE, special do not support CSoPS as the residing PLMN of new side MME, and the residing PLMN of old side MME is when supporting CSoPS, newly side MME need indicate the current EPS network of UE not support CSoPS.

Step S1114, if (e) MSC/VLR is that UE has distributed new TMSI, then UE sends the TMSI Reallocation Complete message to MME.

Step S1115, MME sends the TMSI Reallocation Complete message by the Z2 interface to (e) MSC/VLR.

As shown in figure 12, be embodiment of the invention CSoPS capability negotiation system construction drawing, this system comprises MME1 and at least one UE2, and UE2 is used for sending a request message to MME1, and receives the CSoPS ability that MME1 is the UE2 selection; MME1 is used to receive the request message that UE2 sends, and judges the CSoPS ability information that whether comprises UE2 in the described request message; If judge the CSoPS ability information that comprises UE2, be that UE2 selects a kind of CSoPS ability then according to CSoPS ability information and the network configuration information that UE2 reports, notify UE2 with selection result; If judge the CSoPS ability information that does not comprise UE2, be that UE2 selects a kind of CSoPS ability then according to network configuration information, notify UE2 with selection result.

Wherein, MME1 comprises: request message receiver module 11, judge module 12, selection module 13 and notification module 14.Wherein:

Request message receiver module 11 is used to receive the request message that UE2 sends;

Judge module 12 is used for judging whether described request message comprises the CSoPS ability information of UE2;

CSoPS ability information and the network configuration information of selecting module 13 to be used for reporting according to UE2 when judgement comprises the CSoPS ability information of UE2 are that UE2 selects a kind of CSoPS ability, or are that UE2 selects a kind of CSoPS ability according to network configuration information when judging the CSoPS ability information that does not comprise UE2;

Notification module 14 is used for and will selects the selection result notice UE2 of module 13.

MME1 also comprises:

Combined registering sign judge module 15 is used for when request message is Attach Request message, judges whether comprise the combined registering sign in the described Attach Request message;

CS territory Registering modules 16 is used for judging that at combined registering sign judge module 15 described Attach Request message includes described combined registering sign, then registers to the CS territory behind the subscription data of EPS network obtaining UE2.

Ability acquisition module 17 is used for consulting with the old side MME at described UE place, obtains the CSoPS ability that described UE consults at old side MME;

Ability judge module 18 is used to judge CSoPS ability that the described old side MME that obtains provides and described new side MME are whether the CSoPS ability selected of described UE is consistent; If it is consistent then notify described notification module to need not to notify described UE with the selection result of described selection module.

Ability provides module 19, is used for when associating tracing section updating takes place UE, provides described UE the CSoPS ability in this MME negotiation as the old side MME at UE place to the new MME at described UE place.

Wherein, UE2 comprises request message sending module 21, response message receiver module 22 and processing module 23, and request message sending module 21 is used for sending a request message to MME1, includes the CSoPS ability information of UE2 in the described request message; Response message receiver module 22 is used to receive the response message that MME1 returns, and including MME1 in the described response message is the CSoPS ability that UE2 selects; It is that the CSoPS ability that UE2 selects is carried out subsequent treatment that processing module 23 is used for according to MME1.

The embodiment of the invention makes UE and network equipment (as MME) can consult the method for CSoPS professional ability, thereby can guarantee that different UEs can adopt different CSoPS frameworks to finish business in the consolidated network, can guarantee that also same UE adopts different CSoPS frameworks to finish business in heterogeneous networks.The embodiment of the invention can also guarantee the smooth evolution between the CSoPS scheme for combining different phase scheme, operator can press phase deployment as required, and dynamically determine the CSoPS framework that this UE uses, thereby guaranteed realizability by evolution Packet Based Network processing CS service technique according to the ability of current network framework and UE.

Through the above description of the embodiments, 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 embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1, a kind ofly it is characterized in that, may further comprise the steps by the professional CSoPS capability negotiation of evolution Packet Based Network transmission circuit switching domain method:

Described judged result is when comprising the CSoPS ability information of described UE, and the CSoPS ability information that described MME reports according to described UE, network configuration information are that described UE selects a kind of CSoPS ability, and notify described UE with selection result.

2, CSoPS capability negotiation method according to claim 1, it is characterized in that described request message is specially Attach Request message, and described Attach Request message carries the CSoPS ability information of described UE, after described MME receives the Attach Request message of described UE, also comprise:

Described MME judges whether comprise the combined registering sign in the described Attach Request message;

When including described combined registering sign in the described Attach Request message, described MME replaces described UE to register to the CS territory;

Described MME notifies described UE to be specially selection result:

Described MME accepts message and notifies described UE with selection result by adhering to.

3, as CSoPS capability negotiation method as described in the claim 2, it is characterized in that, after described MME judges whether comprise the combined registering sign in the described Attach Request message, also comprise:

Do not comprise in the described Attach Request message that described MME judged according to the CSoPS ability information of UE in the described Attach Request message whether described UE supports the CSoPS ability when described combined registering identified;

When described UE supported the CSoPS ability, described MME replaced described UE to register to the CS territory.

4, CSoPS capability negotiation method according to claim 1 is characterized in that, after described MME notifies described UE with selection result, also comprises:

It is the CSoPS ability that described UE selects that described UE writes down described MME, and carries out subsequent treatment according to described CSoPS ability.

5, CSoPS capability negotiation method according to claim 1, it is characterized in that, described judged result is not for comprising the CSoPS ability information of described UE, and then described MME is that described UE selects a kind of CSoPS ability according to network configuration information, and notifies described UE with selection result.

6, as CSoPS capability negotiation method as described in the claim 5, it is characterized in that described request message is specially Attach Request message, and described Attach Request message do not comprise the CSoPS ability information of described UE,

Described MME notifies described UE to be specially selection result:

7, CSoPS capability negotiation method according to claim 1 is characterized in that described request message is location update request message, before mobile management entity MME receives the location update request message that user equipment (UE) sends, also comprises:

Described MME receives the Attach Request message of described UE, and accepts in the message indication UE and start more new technological process of independent position, CS territory adhering to.

8, as CSoPS capability negotiation method as described in the claim 7, it is characterized in that described location update request message carries the CSoPS ability information of described UE;

Described MME notifies described UE to be specially selection result:

Described MME accepts message by the position renewal and notifies described UE with selection result.

9, CSoPS capability negotiation method according to claim 1 is characterized in that described method also comprises:

When described UE when old side MME is registered to new side MME, described UE and described new side MME carry out the CSoPS capability negotiation again.

10, as CSoPS capability negotiation method as described in the claim 9, it is characterized in that described UE and described new side MME carry out the CSoPS capability negotiation again and specifically may further comprise the steps:

The old side MME at described new side MME and described UE place consults, and obtains the CSoPS ability that described UE consults at old side MME;

Described new side MME judges CSoPS ability that described old side MME provides and described new side MME are whether the CSoPS ability selected of described UE is consistent; If inconsistent, then described new side MME will notify described UE for the CSoPS ability that described UE selects.

As CSoPS capability negotiation method as described in the claim 10, it is characterized in that 11, the old side MME at described new side MME and described UE place consults, obtain described UE and be specially in the CSoPS ability of old side MME negotiation;

Described new side MME supports the CSoPS ability, then sends a request message to described old side MME, and comprise the indication of CSoPS ability in described request message, the CSoPS ability that requires described old side MME to provide described UE and described old side MME to consult;

Described old side MME sends response message to described new side MME, when UE has write down the CSoPS ability after the negotiation in described old side MME, comprises the CSoPS ability after described UE consults in described response message.

As CSoPS capability negotiation method as described in the claim 10, it is characterized in that 12, the old side MME at described new side MME and described UE place consults, obtain described UE and be specially in the CSoPS ability of old side MME negotiation;

Described new side MME does not support the CSoPS ability, then send a request message to described old side MME, and the described new side MME of indication does not support CSoPS in described request message, does not perhaps carry described indication;

When described UE had write down the CSoPS ability after the negotiation in described old side MME, described old side MME sent response message to described new side MME, the CSoPS ability after comprising the CSoPS ability after described UE consults in the described response message or not carrying described UE negotiation.

13, as CSoPS capability negotiation method as described in the claim 10, it is characterized in that, obtained described UE before the CSoPS ability that old side MME consults, also comprise at described new side MME:

Described new side MME receives the tracing section updating request of described UE;

Described new side MME is that the CSoPS ability that described UE selects is specially:

Carry the CSoPS ability information of described UE in the described tracing section updating request, then described MME is that described UE selects a kind of CSoPS ability according to CSoPS ability information and the network configuration information of described UE; When not carrying the CSoPS ability information that contains described UE in the described tracing section updating request, then described MME is that described UE selects a kind of CSoPS ability according to network configuration information.

14, as CSoPS capability negotiation method as described in the claim 13, it is characterized in that, also comprise:

Described new side MME accepts message by tracing section updating will notify described UE for the CSoPS ability that described UE selects.

15, as CSoPS capability negotiation method as described in the claim 10, it is characterized in that, obtain described UE after the CSoPS ability that old side MME consults, also comprise at described new side MME:

Described new side MME accepts message by tracing section updating and indicates described UE to start more new technological process of independent position, CS territory;

Described UE carries the CSoPS ability information of described UE sending location update request message to described new side MME in the described location update request message;

Described new side MME will notify described UE to be specially for the CSoPS ability that described UE selects:

Described new side MME accepts message by the position renewal will notify described UE for the CSoPS ability that described UE selects.

16, a kind of CSoPS capability negotiation system comprises MME and at least one UE, it is characterized in that,

17, a kind of mobile management entity MME is characterized in that, comprising:

18, as MME as described in the claim 17, it is characterized in that, also comprise combined registering sign judge module and CS territory Registering modules,

Described combined registering sign judge module is used for when request message is Attach Request message, judges whether comprise the combined registering sign in the described Attach Request message;

Described CS territory Registering modules is used for judging that at described combined registering sign judge module described Attach Request message includes described combined registering sign, replaces UE to register to the CS territory.

19, as MME as described in the claim 18, it is characterized in that, also comprise CSoPS ability acquisition module, be used to obtain the CSoPS ability that described UE consults at old side MME.

20, as MME as described in the claim 18, it is characterized in that described selection module also is used for:

Judged result at described judge module is when not comprising the CSoPS ability information of described UE, to be that described UE selects a kind of CSoPS ability according to network configuration information, and to notify described UE by described notification module with the selection result of described selection module.

21, as MME as described in the claim 18, it is characterized in that, also comprise:

The ability acquisition module is used for consulting with the old side MME at described UE place, obtains the CSoPS ability that described UE consults at old side MME;

The ability judge module is used to judge CSoPS ability that the described old side MME that obtains provides and described new side MME are whether the CSoPS ability selected of described UE is consistent; If it is consistent then notify described notification module to need not to notify described UE with the selection result of described selection module.

22, as MME as described in the claim 18, it is characterized in that, also comprise:

Ability provides module, is used for when the associating tracing section updating takes place UE, provides described UE CSoPS ability in this MME negotiation to the new MME at described UE place.

23, a kind of user terminal UE is characterized in that, comprising: