CN101784089A

CN101784089A - Service processing method and related equipment

Info

Publication number: CN101784089A
Application number: CN200910005545A
Authority: CN
Inventors: 陈中平; 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2010-07-21

Abstract

The invention provides a service processing method and related equipment. The method comprises the following steps: obtaining the information about whether the indicated visit place supports circuit switched domain services over evolved packet switched access (CSoEPS); and determining whether the inter working function (IWF) serving user equipment (UE) is IWF of the visit place or the home according to the information about whether the indicated visit place supports CSoEPS and adopting the determined IWF to carry out service processing. The technical scheme provided by the invention can determine whether IWF serving UE is IWF of the visit place or the home according to the information about whether the visit place supports CSoEPS.

Description

Method for processing business and relevant device

Technical field

The present invention relates to communication technical field, particularly a kind of method for processing business and relevant device.

Background technology

The main processed voice business in CS (Circuit Switched, circuit switching) territory, the signaling plane controlled entity in CS territory are MSC (Mobile Switch Center, mobile switching centre)/VLR (Visitor LocationRegister, VLR Visitor Location Register).GERAN (GSM EDGE Radio Access Network, GSM edge Radio Access Network) wireless access network element BSS (Base Station Subsystem in the network, base station sub-system) is connected with MSC by the A interface, UTRAN (UMTS Territorial Radio AccessNetwork, the universal mobile telecommunications system land radio access web) wireless access network element RNC (Radio Network Controller, radio network controller) is connected with MSC by Iu-CS interface in the network.

In order to tackle the challenge of wireless broad band technology, formulated Long Term Evolution plan (LTE, Long TermEvolution), defined the framework of new mobile communications network accordingly, this framework has only kept packet domain, therefore packet network (the EPS that is called evolution, Evolved Packet System), this server host will comprise MME (Mobility Management Entity, Mobility Management Entity), S-GW (Serving Gateway, gateway), three logic function bodies of PDN GW (PDN Gateway, data gateway).

Because a lot of business of operator all operate in the circuit domain, in order in LTE, to reuse existing C S business, CSoEPS (CS domain services over evolved PS access has been proposed, circuit domain business inserts by the packet domain of evolution) framework, this framework couples together EPS network and CS territory by IWF, the up signaling in the CS territory that UE sends or data arrive MSC by IWF (Inter Working Function, IWF); Downlink signaling that MSC sends or data arrive UE by IWF, and signaling between UE and the IWF or data interaction are transmitted by eNodeB, S-GW/PDN-GW.

UE adheres on visit ground, and request is established to the IP tunnel of visit ground IWF, if but CSoEPS is not supported on visit ground, and then follow-up UE can't carry out Business Processing by described IP tunnel, and this IP tunnel of promptly being set up is nonsensical, has caused waste of network resources.

Perhaps, UE registers on the IWF of ownership place, if UE switches to visit ground, causes the interruption of voice communication in the time of can causing follow-up the switching.

Summary of the invention

The embodiment of the invention provides a kind of method for processing business and relevant device, determines to be the IWF of UE service, and utilizes described definite IWF to carry out Business Processing.

In view of this, the embodiment of the invention provides:

A kind of method for processing business comprises:

Whether obtain indication visit ground supports circuit domain business to insert the information of CSoEPS by the packet domain of evolution;

Whether support the information of CSoEPS according to described indication visit ground, the IWF IWF that is defined as described UE service is the IWF on visit ground or the IWF of ownership place, adopts determined IWF to carry out Business Processing.

A kind of method for processing business, this method comprises:

Receive the grouped data network PDN connection request message that UE sends;

Whether support circuit domain business to insert CSoEPS by the packet domain of evolution according to visit ground, the IWF IWF that is defined as the UE service is visit ground IWF or ownership place IWF;

Send PDN to described UE and accept message, described PDN accepts to comprise in the message described definite for UE provides the IWF information of service, so that described UE adopts determined IWF to carry out Business Processing.

A kind of subscriber equipment comprises:

Whether the indication information acquiring unit is used to obtain indication visit ground and supports circuit domain business to insert the information of CSoEPS by the packet domain of evolution;

First determining unit is used for whether supporting according to described indication visit ground the information of CSoEPS, and the IWF IWF that is defined as described UE service is the IWF on visit ground or the IWF of ownership place;

Processing unit is used to adopt determined IWF to carry out Business Processing.

A kind of mobile management network element comprises:

The message sink unit is used to receive the grouped data network PDN connection request message that UE sends;

Second determining unit is used for after the PDN connection request message that receives described UE transmission, and the IWF IWF that is defined as the UE service is visit ground IWF or ownership place IWF;

Message sending unit is used for sending PDN to described UE and accepts message, and described PDN accepts to comprise in the message described definite for UE provides the IWF information of service, so that described UE adopts determined IWF to carry out Business Processing.

Whether the embodiment of the invention supports the information of CSoEPS by obtaining indication visit ground, whether support CSoEPS to know visit ground, the IWF that whether supports CSoEPS to be defined as the UE service according to visit ground is visit ground IWF or ownership place IWF, so that UE can utilize determined IWF to carry out Business Processing, avoided UE to determine to provide the IWF of service for it, and the wasting of resources that causes or service disconnection.

Description of drawings

Fig. 1 is the CSoEPS Organization Chart.

Fig. 2 is the method for processing business flow chart that the embodiment of the invention one provides;

Fig. 3 is the method for processing business flow chart that the embodiment of the invention two provides;

Fig. 4 is the method for processing business flow chart that the embodiment of the invention three provides;

Fig. 5 is the method for processing business flow chart that the embodiment of the invention four provides;

Fig. 6 is the method for processing business flow chart that the embodiment of the invention five provides;

Fig. 7 is the user device architecture figure that the embodiment of the invention six provides;

Fig. 8 is the mobile management network element structure chart that the embodiment of the invention seven provides.

Embodiment

For making the embodiment of the invention clearer, earlier the CSoEPS framework is done simple description, as shown in Figure 1, the PDN GW in the EPS network is connected to by IWF on the MSC of traditional C core net, and IWF possesses the ability of Simulation with I u-CS/A interface.By IWF EPS network and CS territory are coupled together.Under above-mentioned framework, UE carries out signaling and data interaction by Z1 and IWF.In logic, UE sends the up signaling in CS territory or data to IWF from Z1, and the function of IWF Simulation with I u-CS/A interface-promptly simulate BSS/RNS (Radio Network Subsystem, RNS) sends up signaling or data to MSC; The processing of downlink signaling is similar, and MSC sends downlink signaling or data to IWF, and IWF sends the downlink signaling in CS territory or data to UE from Z1.For MSC, in fact the IWF that it is seen thinks to be exactly a BSS/RNS.In fact, signaling between UE and the IWF or data interaction are user's face tunnel (IP tunnel) carryings by the EPS network, and their true transmission are between UE, eNodeB, S-GW/PDN-GW and IWF so.

Embodiment one:

The embodiment of the invention one provides a kind of method for processing business, and this method comprises:

Whether support the information of CSoEPS according to described indication visit ground, the IWF IWF that is defined as described UE service is the IWF on visit ground or the IWF of ownership place;

Adopt determined IWF to carry out Business Processing.

Wherein, the executive agent of this method can be UE.

Wherein, adopt determined IWF to carry out Business Processing and comprise: if be defined as the IWF of described UE service is when visiting the IWF on ground, sends register requirement to the IWF on described visit ground; When being the IWF of ownership place, send register requirement to the IWF of described ownership place as if the IWF that is defined as described UE service.If be defined as the IWF of described UE service is when visiting the IWF on ground, sends register requirement to the IWF on described visit ground; When being the IWF of ownership place, maintain the registration of the IWF of described ownership place as if the IWF that is defined as described UE service; The up signaling in the CS territory that follow-up UE sends or data are passed through determined IWF to MSC; Downlink signaling that MSC sends or data are passed through described IWF to UE.

Whether the embodiment of the invention one supports the information of CSoEPS by obtaining indication visit ground, whether support CSoEPS to know visit ground, whether support CSoEPS to decide the IWF for the UE service according to visit ground is visit ground IWF or ownership place IWF, so that UE can utilize determined IWF to carry out Business Processing, failure causes the interruption of voice communication when avoiding follow-up switch.

In order to make subsequent embodiment clear, earlier LBO (Local Breakout, the local triggering) bearing mode and HRO (Home Routed, route goes back home) bearing mode are done simple introduction:

When UE inserted on visit ground, if CSoEPS is supported on visit ground, and for the PDNGW and the IWF of UE service is positioned at visit ground, UE was called LBO (LocalBreakout, the local triggering) mode to carrying between the PDN GW on visit ground and carries;

When UE inserted on visit ground, the PDN GW and the IWF that serve for UE were positioned at ownership place, and UE is called HRO (Home Routed, route goes back home) mode to carrying between the PDN GW of ownership place and carries.

Embodiment two:

Consult Fig. 2, the embodiment of the invention two provides a kind of method for processing business, when UE adheres in the start of visit ground, UE obtains the information whether indication visit ground supports CSoEPS, whether be the IWF on visit ground or the IWF of ownership place, this method comprises for the UE service according to indication visit ground if supporting the information of CSoEPS to decide IWF:

A1, UE send Non-Access Stratum NAS request message to the MME on visit ground, and this NAS request message can be Attach Request (adhering to request) or TAU Request (tracing section updating request).

A2, MME send NAS to UE and accept message, carry indication visit ground in this message and whether support the information of CSoEPS, whether this indication visit ground supports that the information of CSoEPS can be an indication information element, such as CSoEPS Supported cell or CSoEPS Indicator cell, it also can be a particular bit position, do not support CSoEPS such as 0 expression visit ground, CSoEPS is supported on 1 expression visit ground.

A3, UE send grouped data network PDN connection request message (PDN Connectivity Request) to MME, carry APN (Access PointName in the message, APN) information, wherein, described APN information is used to notify this PDN to connect and leads to which network; If CSoEPS is supported on visit ground, the IWF that then is defined as this UE service is the IWF on visit ground, and UE carries indication and sets up LBO mode loaded information in the PDN connection request message that MME sends, such as LBOIndicator; If CSoEPS is not supported on visit ground, the IWF that then is defined as this UE service is the IWF of ownership place, and then UE carries indication and sets up HRO mode loaded information in the PDN connection request message that MME sends, such as Home Routed Indicator.

Realized that in this step the IWF that UE is defined as oneself service is the IWF on visit ground or the purpose of the IWF of ownership place, to send PDN connection request message be that request MME is established to UE is IP tunnel between the IWF of UE service to MME.

A4, MME select P-GW by APN, and and S-GW/P-GW between create dedicated bearing.

Wherein, set up LBO mode loaded information if carry indication in the PDN connection request message, then MME selects the P-GW of visited network, sets up HRO mode loaded information if carry indication in the PDN connection request message, and then MME selects the P-GW of home network.

A5, MME reply PDN to UE and accept message (PDN Connectivity Response).

So far finished the PDN establishment of connection, this PDN connection building process is the prerequisite that UE is accomplished to the IWF registration and is accomplished to the registration of CS territory.The PDN establishment of connection is actually to UE and sets up an IP tunnel to IWF.The Signalling exchange of UE and IWF and UE realize by described passage by signaling or the data interaction of IWF and MSC.

A6, UE send login request message to the IWF for the UE service by the above-mentioned IP passage.

UE sends login request message to the IWF that service is provided for it and has dual mode at least in this step, a kind ofly is: connect at PDN and set up in the process, network side (MME or P-GW) provides the address information of IWF to UE; UE directly sends login request message to this IWF according to the address information of this IWF by IP tunnel; Another kind is: connect at PDN and set up in the process, network side (MME or P-GW) sends a server address (can accept message by PDN carries) to UE, need to prove, network side knows that by PDN connection request message UE indication sets up the LBO mode and carry still the HRO mode and carry, so network side knows that the address that send the server on visit ground to UE still is the address of server of ownership place; UE is to the address information of the server requests IWF of this described network side transmission, and UE directly sends login request message to this IWF according to the address information of this IWF by IP tunnel.

A7, provide the IWF of service to reply registration to accept message for UE to UE.So far, UE is accomplished to the process of IWF registration.

Above-mentioned steps A6-A7 is the registration process of UE to IWF, and steps A 3-A5 is the prerequisite that UE finishes registration, can regard steps A 3-A7 as a complete registration process in the present invention.

UE can register to MSC then, and follow-up business just can be transmitted between UE, eNodeB, S-GW/PDN-GW, IWF and MSC.Specifically can be: up signaling or data that UE sends the CS territory arrive IWF, and IWF Simulation with I u-CS/A interface sends up signaling or data to MSC; MSC transmission downlink signaling or data are to IWF, and IWF sends downlink signaling or data arrive UE, and signaling between UE and the IWF or data interaction are transmitted by eNodeB, S-GW/PDN-GW.

UE accepts message by NAS to obtain the information whether indication visit ground supports CSoEPS from network side among this embodiment, UE also can adopt other modes to obtain to indicate visit ground whether to support the information of CSoEPS, such as, whether the broadcast indication visit ground that uses base station, visit ground to send supports CSoEPS, and UE knows according to broadcast whether visit ground supports CSoEPS.Wherein, the broadcast indication visit ground that uses base station, visit ground to send whether support CSoEPS can but be not limited to adopt following dual mode:

First kind of mode: carry the information whether expression visit ground supports CSoEPS in the broadcast, promptly utilize this visit ground of certain cell or particular bit bit representation whether to support CSoEPS.

The second way: if the information of CSoEPS is supported on visit ground, then carry indication visit ground in the broadcast and support the information of CSoEPS, if CSoEPS is not supported on visit ground, then do not carry indication visit ground in the broadcast and whether support the information of CSoEPS, UE can be defaulted as visit ground at this moment and not support CSoEPS.

Whether the embodiment of the invention two UE support the information of CSoEPS by obtaining indication visit ground, whether support CSoEPS to know visit ground, whether support CSoEPS to decide according to visit ground and be registered to the IWF that the IWF that visits ground still is registered to ownership place, avoided when not supporting CSoEPS, having set up UE to the waste of network resources that the IP tunnel between the visit ground IWF causes with visiting, avoided simultaneously when supporting CSoEPS, not carrying out the related procedure that being registered to visit ground IWF and the interruption of the follow-up voice communication when switching that causes with visiting with visiting.

Need to prove: the foregoing description two is to be described in the scene that visit ground begins to adhere to UE, if UE is registered to IWF (IWF of ownership place) at ownership place, switch to visit ground then, UE knows in the broadcast of NAS flow process or base station whether visit ground supports CSoEPS, if CSoEPS is supported on visit ground, then send the PDN connection request that the LBO mode is set up in indication to MME, the UE that is carried as between the PDN GW on MME foundation and visit ground provides IP tunnel to the IWF that visits ground, and UE registers to the IWF on this visit ground more then; If CSoEPS is not supported on visit ground, then continue to remain on the registration of the IWF of ownership place.

Embodiment three:

Consult Fig. 3, the embodiment of the invention three provides a kind of method for processing business, this method and embodiment two differences are, UE also obtained indicate whether to allow for this UE visit setting up LBO mode loaded information, whether support the information of CSoEPS and indicate whether to allow for this UE to set up LBO mode loaded information on visit ground to decide the IWF for the UE service be the IWF on visit ground or the IWF of ownership place according to indication visit ground, this method comprises:

B1, UE send the NAS request message to the MME on visit ground, and this NAS request message can be Attach Request (adhering to request) or TAU Request (tracing section updating request).

B2, MME know according to the information that presets whether visit ground supports CSoEPS, and according to the information that presets or subscription data or the roaming agreement obtained from HSS, determine whether to allow for described UE visit set up the LBO mode and carry, and send NAS to UE and accept message, carry the policy information of setting up voice bearer in this message; Wherein, the policy information of setting up voice bearer comprises: indication visit ground whether support the information of CSoEPS and indicate whether to allow for described UE visit setting up LBO mode loaded information.

Concrete, set up and can carry " CSoEPS Supported andLBO Supported " cell in the policy information of voice bearer and support CSoEPS with expression visit ground, and support for UE visit set up the LBO mode and carry.

B3, UE send PDN connection request message to MME, carry APN information in the message, when visit ground support CSoEPS and allow for described UE visit set up the LBO mode and carry, the IWF that UE is defined as oneself serving is the IWF on visit ground, carry indication in this PDN connection request message and set up LBO mode loaded information, such as LBO Indicator; If the IWF that visit ground does not support CSoEPS, UE to be defined as oneself serving is the IWF of ownership place, carries indication in this PDN connection request message and set up HRO mode loaded information, such as Home Routed Indicator; If CSoEPS is supported on visit ground, do not set up the LBO mode on visit ground and carry but do not allow for this UE, it is the IWF of ownership place that UE is defined as the own IWF that serves, and carries in this PDN connection request message to indicate and sets up HRO mode loaded information.

B4, MME select P-GW by APN, and and S-GW/P-GW between create dedicated bearing.

B5, MME reply PDN to UE and accept message, carry the addressing information of the IWF of corresponding above-mentioned bearing mode in this message.

B6, UE are according to the addressing information of IWF, send login request message to IWF by the above-mentioned IP passage, carry the sign IMSI (International Mobile SubscriberIdentification Number, international mobile subscriber identity) of UE in the message, the cell information that UE is current etc.

B7, IWF handle the register requirement of UE, reply registration to UE and accept message, carry the relevant information of IWF in the message.

UE can register to MSC then, and subsequent voice is professional just can be transmitted between UE, eNodeB, S-GW/PDN-GW, IWF and MSC.

Whether UE supports the information of CSoEPS and indicates whether to allow for this UE setting up LBO mode loaded information by obtaining indication visit ground with visiting in the embodiment of the invention three, whether support the information of CSoEPS and whether allow to carry setting up the LBO mode to know visit ground with visiting, and serve as according to deciding the IWF that is registered to visit ground still to be registered to the IWF of ownership place with these two indication informations, avoided when not supporting CSoEPS, having set up the time delay that UE carries out to waste of network resources that IP tunnel caused between the visit ground IWF and business with visiting, avoided simultaneously when visiting ground support CSoEPS, not asking the IP tunnel of IWF with being established to visit, can't be accomplished to the registration of visiting ground IWF and the interruption of the follow-up voice communication when visiting the ground switching that causes.

Need to prove: the foregoing description three is to be described in the scene that visit ground begins to adhere to UE, if UE is registered to IWF (IWF of ownership place) at ownership place, switch to visit ground then, UE knows in the NAS flow process whether visit ground is supported CSoEPS and whether allowed for UE in the carrying of setting up the LBO mode with visiting, if visit ground is supported CSoEPS and is allowed for UE in the carrying of setting up the LBO mode with visiting, then send indication and set up the PDN connection request that the LBO mode is carried to MME, the UE that is carried as between the PDN GW on MME foundation and visit ground provides IP tunnel to the IWF that visits ground, and UE registers to the IWF on this visit ground more then; If CSoEPS is not supported on visit ground, perhaps visit ground support CSoEPS but do not allow for UE visit set up the carrying of LBO mode, then continue to remain on the registration of the IWF of ownership place.

Embodiment four:

Consult Fig. 4, the embodiment of the invention four provides a kind of method for processing business, and when UE adhered in the start of visit ground, when perhaps UE switched to visit ground by ownership place, the IWF that MME is defined as this UE service was the IWF on visit ground or the IWF of ownership place, and this method comprises:

C1, UE send PDN connection request message to MME, carry a standardized APN in the message, to represent that this PDN connects is carry voice traffic, perhaps carries an APN and the indication information corresponding with it, and it is carry voice traffic that this indication information is used to indicate the PDN connection of this APN correspondence.

C2, MME know according to the information that presets whether visit ground supports CSoEPS, is defined as the IWF of this UE service, if CSoEPS is supported on visit ground, the IWF that is defined as this UE service is the IWF on visit ground; If CSoEPS is not supported on visit ground, the IWF that is defined as this UE service is the IWF of ownership place; Further, also can know whether visit ground supports CSoEPS according to the information that presets, and according to the information that presets or subscription data or the roaming agreement obtained from HSS, determine whether to allow for described UE visit set up the LBO mode and carry, when CSoEPS is supported on visit ground, and support for UE visit set up the LBO mode and carry, the IWF that then is defined as this UE service is the IWF on visit ground, should be the carrying that this UE sets up the LBO mode, select the P-GW of visited network according to APN, and and S-GW/P-GW between create IP tunnel; Do not support CSoEPS when visit ground, the IWF that is defined as this UE service is the IWF of ownership place, should be the carrying that this UE sets up the HRO mode; When CSoEPS is supported on visit ground, but do not support to carry for UE sets up the LBO mode on visit ground, being defined as the IWF that this UE serves is the IWF of ownership place, should be the carrying that this UE sets up the HRO mode, select the P-GW of home network according to APN, and and S-GW/P-GW between create IP tunnel.

If acquiescence visit ground support CSoEPS just support certainly for UE visit set up the LBO mode and carry, then the IWF that directly whether supports CSoEPS to be defined as the UE service according to visit ground in this step is the IWF on visit ground or the IWF of ownership place, be specially: when CSoEPS was supported on visit ground, the IWF that is defined as the UE service was the IWF on visit ground; When CSoEPS was not supported in visit ground, the IWF that is defined as the UE service was the IWF of ownership place.

C3, MME reply PDN to UE and accept message, carry the relevant information of the IWF of corresponding above-mentioned bearing mode in this message.If promptly being defined as the IWF of UE service is the IWF of ownership place, then this PDN accepts to carry in the message relevant information of the IWF of ownership place; If being defined as the IWF of UE service is the IWF on visit ground, then this PDN accepts to carry in the message relevant information of the IWF that visits ground.

C4, UE send login request message to IWF by the above-mentioned IP passage, carry the sign IMSI of UE in the message, the cell information that UE is current etc.

Wherein the relevant information of the IWF among the step C3 can be the address information of IWF, and then UE directly sends login request message to this IWF according to the address information of this IWF by IP tunnel in this step; Perhaps, the relevant information of above-mentioned IWF is to distribute the address of the server of IWF, and UE is to the address information of this server requests IWF, and UE directly sends login request message to this IWF according to the address information of this IWF by IP tunnel.

C5, IWF handle the register requirement of UE, reply registration to UE and accept message, carry the relevant information of IWF in the message.

Whether support CSoEPS according to visit ground and whether allow for this UE setting up the LBO mode by MME in the embodiment of the invention four with visiting, the IWF that is defined as this UE service is the IWF on visit ground or the IWF of ownership place, to be defined as the carrying that UE sets up the LBO mode still is the carrying of HRO mode, set up when having avoided not supporting CSoEPS on visit ground UE to visit IP tunnel between the IWF and the waste of network resources that causes; Avoid simultaneously when visiting ground support CSoEPS, not carrying out the related procedure that is registered to visit ground IWF and the interruption of the follow-up voice communication when visiting the ground switching that causes.

Embodiment five:

Consult Fig. 5, the embodiment of the invention five provides a kind of method for processing business, and when UE adhered in the start of visit ground, the IWF notice UE of ownership place was the IWF on visit ground or the IWF of ownership place for the IWF of this UE service, and this method specifically comprises:

D1, UE initiate PDN connection request message to MME, carry APN information and indication in this message and set up HRO mode loaded information.

Also can not carry indication in this message and set up HRO mode loaded information, MME is defaulted as the carrying of setting up the HRO mode.

D2, MME are established to the connection of P-GW1, S-GW according to the P-GW1 in the APN selection home network.

D3, MME send PDN to UE and accept message, carry the relevant information that this HRO mode is carried corresponding IWF1 (IWF of ownership place) in this message.

D4, UE utilize the HRO mode to carry the relevant information of corresponding IWF1, send register requirement to IWF1, carry current area information, PLMN (PublicLand Mobile-communication Network, the public land mobile communication network) message of IMSI, the UE of UE in this register requirement.

Also can not adopt register requirement in this step, but adopt other related news of registration, not influence realization of the present invention.

D5, IWF1 determine that UE is in visit ground, according to the configuration of operator according to current area information or the PLMN message of UE, know whether visit ground supports CSoEPS, if CSoEPS is not supported on visit ground, then IWF1 replys registration to UE and accepts message, and IWF1 is the IWF for the UE service; If CSoEPS is supported on visit ground, then IWF1 determines that IWF2 (IWF on visit ground) is the IWF for the UE service, and to UE transmission registration Transfer Message, carry in this message visit ground IWF2 address information (for example: the IP address information) and the indication of its correspondence, this indication be used to notify UE this be the IWF on a visit ground.

Need to prove: this step also can be according to the configuration of operator, know whether allow for this UE visit set up the LBO mode and carry, when CSoEPS is supported on visit ground, and allow for UE visit set up the LBO mode and carry, the IWF that then is defined as this UE service is IWF2 (IWF on visit ground), sends the registration Transfer Message to UE; When CSoEPS is not supported on visit ground, perhaps support CSoEPS when visit ground, do not set up the LBO mode on visit ground and carry but do not allow for UE, then IWF1 replys registration to UE and accepts message, and IWF1 is the IWF that serves for UE;

This embodiment supposes that IWF1 sends the registration Transfer Message to UE.

D6, UE initiate PDN connection request message on visit ground again, carry APN information and indication in this message and set up LBO mode loaded information.

D7, MME set up dedicated bearing according to the PDN GW2 that APN selects visit ground with S-GW/PDN GW2.

D8, MME send PDN to UE and accept message.

So far, UE has set up the IP tunnel of IWF2.

D9, UE send register requirement to IWF2.

D10, IWF2 reply registration to UE and accept message.

UE carries out to the MSC register flow path then, and subsequent voice is professional just can be transmitted between UE, eNodeB, S-GW/PDN-GW2, IWF2 and MSC.

Need to prove: the address of the visit ground IWF2 that the IWF1 of ownership place provides can be the address of a default IWF, when UE is visiting ground when this default IWF2 registers, if this IWF2 can't serve for UE, but IWF2 can provide the address information of the IWF3 of service UE in the visit ground to UE, and UE initiates register requirement to IWF3 again.

In the embodiment of the invention five at UE when the IWF of ownership place sends register requirement, the IWF of ownership place finds that UE is in visited network, configuration according to operator, if visited network is supported CSoEPS, the IWF of ownership place provides the address of the IWF on visit ground to UE, then UE is known visit ground support CSoEPS, can select the IWF that visits ground to be oneself service.Follow-up, UE carries indication and sets up LBO mode loaded information in the PDN connection request that MME sends, the UE that is carried as between the PDN GW on MME foundation and visit ground provides IP tunnel to the IWF that visits ground, UE registers to the IWF on this visit ground more then, avoids supporting CSoEPS on visit ground and the interruption of the follow-up voice communication when switching on visit ground of not carrying out that the registration of visit ground IWF causes.

Embodiment six:

Consult Fig. 6, the embodiment of the invention six provides a kind of method for processing business, UE is registered to IWF (IWF of ownership place) at ownership place, UE switches to visit ground by ownership place, the IWF notice UE of ownership place is the IWF on visit ground or the IWF of ownership place for the IWF of this UE service, and this method specifically comprises:

UE inserts visit ground from ownership place, because the change of positional information, UE carries out the flow process to the IWF-ownership place IWF1 register update that service is provided for it.

E1, UE send the register update request to the IWF1 of ownership place, (for example: cell information), PLMN information carry the IMSI of UE, the current location information of UE in this register requirement.

E2, IWF1 determine that UE is in visit ground, according to the configuration of operator according to current location information or the PLMN information of UE, know whether visit ground supports CSoEPS, if CSoEPS is not supported on visit ground, then IWF1 determines oneself to continue as the UE service, replys register update to UE and accepts message; If CSoEPS is supported on visit ground, then IWF1 determines that IWF2 (IWF on visit ground) can serve for UE, send the registration Transfer Message to UE, carry in this message visit ground IWF2 address information (for example: the IP address information) and the indication of its correspondence, this indication be used to notify UE this be the IWF on a visit ground.

Need to prove: this step also can be according to the configuration of operator, know whether allow for this UE visit set up the LBO mode and carry, when CSoEPS is supported on visit ground, and allow for UE visit set up the LBO mode and carry, the IWF that then is defined as this UE service is IWF2 (IWF on visit ground), sends the registration Transfer Message to UE; When CSoEPS is not supported on visit ground, perhaps support CSoEPS when visit ground, do not set up the LBO mode on visit ground and carry but do not allow for UE, then IWF1 replys register update to UE and accepts message, and IWF1 is the IWF that serves for UE;

E3, UE initiate PDN connection request message on visit ground again, carry APN information and indication in this message and set up LBO mode loaded information.

E4, MME set up dedicated bearing according to the PDN GW2 that APN selects visit ground with S-GW/PDN GW2.

E5, MME send PDN to UE and accept message.

So far, UE has set up the IP tunnel of IWF2.

E6, UE send register requirement to IWF2.

E7, IWF2 reply registration to UE and accept message.

In the embodiment of the invention six at UE when the IWF of ownership place sends the register update request, the IWF of ownership place finds that UE is in visited network, configuration according to operator, if visited network is supported CSoEPS, the IWF of ownership place sends the address of the IWF on visit ground to UE, then UE is known visit ground support CSoEPS, can select the IWF that visits ground to be oneself service.Follow-up, UE carries indication and sets up LBO mode loaded information in the PDN connection request that MME sends, the UE that is carried as between the PDN GW on MME foundation and visit ground provides IP tunnel to the IWF that visits ground, UE registers to the IWF on this visit ground more then, when avoiding supporting CSoEPS on visit ground and allowing for this UE setting up the LBO mode and carrying and do not carry out the interruption of registration caused the follow-up voice communication when switching on visit ground of visit ground IWF.

In the various embodiments described above of the present invention, UE is the registration that is accomplished to IWF, and UE at first needs to be established to the IP tunnel (logic interfacing Z1 as described in Figure 1) of IWF.This is a prerequisite, otherwise can't be accomplished to the registration of IWF.The embodiment of the invention is an example with the EPS network, and the IP tunnel that UE is established to IWF connects and sets up process and finish by carrying out PDN.The present invention does not get rid of the employing alternate manner and is established to the passage of IWF, and then is accomplished to the registration of IWF.For example, at UMTS (Universal Mobile TelecommunicationsSystem, universal mobile telecommunications system) in the network, UE is to SGSN (Serving GPRS Support Node, service GRPS support node) initiates PDP (Packet Data Protocol, packet data protocol) session activation to the IP tunnel between the IWF.

Embodiment seven:

Consult Fig. 7, the embodiment of the invention seven provides a kind of subscriber equipment, comprising:

Whether indication information acquiring unit 701 is used to obtain indication visit ground and supports circuit domain business to insert the information of CSoEPS by the packet domain of evolution;

First determining unit 702 is used for whether supporting according to described indication visit ground the information of CSoEPS, and the IWF IWF that is defined as described UE service is the IWF on visit ground or the IWF of ownership place;

Processing unit 703 is used to adopt determined IWF to carry out Business Processing.

Wherein, indication information acquiring unit 701 is broadcast receiving elements, is used to receive the broadcast of the base station transmission of visiting ground, and whether the described visit of described broadcast indication ground supports CSoEPS;

Perhaps, indication information acquiring unit 701 comprises: NAS request message transmitting element is used for sending the NAS request message to the described MME on visit ground; NAS accepts the message sink unit, is used to receive the NAS that described MME sends and accepts message, and described NAS accepts to carry in the message information whether described visit of indication ground supports CSoEPS.

Perhaps, indication information acquiring unit 701 comprises: registration related news transmitting element is used for sending the registration related news to the IWF of ownership place; The response message receiving element is used to receive the response message that the IWF of described ownership place sends, if carry the information of the IWF on visit ground in the described response message, determines described visit ground support CSoEPS.

Concrete, first determining unit 702 is used for when whether described indication visit ground supports that CSoEPS is supported on the described visit of the information representation ground of CSoEPS, and the IWF that is defined as described UE service is the IWF on visit ground; When whether described indication visit ground supported that CSoEPS is not supported in the described visit of the information representation ground of CSoEPS, the IWF that is defined as described UE service was the IWF of ownership place.

This equipment also comprises: the bearing mode acquiring unit, be used to obtain indicate whether to allow for described UE visit setting up LBO mode loaded information; Optionally, first determining unit 702 is used for whether supporting the information representation visit ground of CSoEPS when indication visit ground and supports CSoEPS, and set up LBO mode loaded information on visit ground and represent to allow for UE and set up the LBO mode on visit ground and carry when indicating whether to allow for UE, the IWF that is defined as described UE service is the IWF that visits ground; Whether support the described visit of the information representation ground of CSoEPS when described indication visit ground and support CSoEPS, and described indicate whether to allow for described UE set up on visit ground LBO mode loaded information represent not allow for described UE visit when setting up the LBO mode and carrying, being defined as the IWF that described UE serves is the IWF of ownership place; When whether described indication visit ground supported that CSoEPS is not supported in the described visit of the information representation ground of CSoEPS, the IWF that is defined as described UE service was the IWF of ownership place.

Wherein, be when visiting the IWF on ground if first determining unit 702 is defined as the IWF of described UE service, described processing unit 703 is used for sending register requirement to the IWF on described visit ground;

Perhaps,

When described UE when visit ground adheres to, and first determining unit 702 IWF that is defined as described UE service is when being the IWF of ownership place, described processing unit 703 is used for sending register requirement to the IWF of described ownership place.

This subscriber equipment also comprises: the connection request transmitting element, be used for when IWF that first determining unit 702 is defined as described UE service is the IWF on visit ground, and send to the MME on visit ground and carry indication and set up the PDN connection request that the local LBO of triggering mode is carried; When the IWF that is defined as described UE service when first determining unit 702 is the IWF of ownership place, sends to the MME on visit ground and to carry indication and set up the PDN connection request that the route HRO mode that goes back home is carried.

Whether UE supports the information of CSoEPS by obtaining indication visit ground in the embodiment of the invention seven, whether support CSoEPS to know visit ground, whether support CSoEPS to decide to the IWF on visit ground registration according to visit ground still to the IWF of ownership place registration, avoid when not supporting CSoEPS with visiting, execution is registered to waste of network resources that related procedure caused and the professional time delay of carrying out of visit ground IWF, avoided simultaneously when visit ground support CSoEPS, not carrying out the registration of visiting ground IWF and the interruption of the follow-up voice communication when the switching of visit ground that causes.

Embodiment eight:

Consult Fig. 8, the embodiment of the invention eight provides a kind of mobile management network element, comprising:

Message sink unit 801 is used to receive the PDN connection request message that UE sends;

Second determining unit 802 is used for after the PDN connection request message that receives described UE transmission, and the IWF that is defined as the UE service is visit ground IWF or ownership place IWF;

Message sending unit 803 is used for sending PDN to described UE and accepts message, and described PDN accepts to comprise in the message described definite for UE provides the IWF information of service, so that described UE adopts determined IWF to carry out Business Processing.

Wherein, second determining unit 802 is used for supporting CSoEPS when visit ground that the IWF that is defined as the UE service is visit ground IWF; Do not support CSoEPS when visit ground, the IWF that is defined as the UE service is ownership place IWF.

Optionally, second determining unit 802 is used for when visit ground is supported CSoEPS and allow for described UE to set up the LBO mode on visit ground and carry, the IWF that is defined as the UE service be visit IWF; When CSoEPS was not supported in visit ground, when perhaps visit ground was supported CSoEPS and do not allow for described UE to set up the LBO mode on visit ground and carry, being defined as the IWF that UE serves was ownership place IWF.

Whether the mobile management network element in the embodiment of the invention eight supports CSoEPS according to visit ground, be defined as the passage that passage that UE is established to visit ground IWF still arrive ownership place IWF, avoid not supporting CSoEPS and UE the request IP tunnel of IWF and the waste of network resources that causes with not being established to visit on visit ground; Avoid simultaneously supporting CSoEPS and UE does not ask to be established to the IP tunnel of visit ground IWF, can't be accomplished to the registration of visit ground IWF and the interruption of the follow-up voice communication when switching that causes on visit ground on visit ground.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, read-only memory for example, disk or CD etc.

More than method for processing business and relevant device that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a method for processing business is characterized in that, comprising:

2. method according to claim 1 is characterized in that,

Whether the described described visit of the indication ground that obtains supports the information of CSoEPS to be specially:

UE receives the broadcast of the base station transmission on visit ground, and described broadcast is used to indicate described visit ground whether to support CSoEPS;

Perhaps,

UE sends Non-Access Stratum NAS request message to the Mobility Management Entity MME on visit ground;

The NAS that receives described MME transmission accepts message, and described NAS accepts message and comprises whether the described visit of indication ground supports the information of CSoEPS;

Perhaps,

UE sends a request message to the IWF of ownership place;

Receive the response message of the IWF transmission of described ownership place,, determine described visit ground support CSoEPS if carry the information of the IWF on visit ground in the described response message.

3. method according to claim 2 is characterized in that,

The described IWF IWF that is defined as described UE service is the IWF on visit ground or the IWF of ownership place is specially:

When whether described indication visit ground supported that CSoEPS is supported on the described visit of the information representation ground of CSoEPS, the IWF that is defined as described UE service was the IWF on visit ground;

Perhaps,

When whether described indication visit ground supported that CSoEPS is not supported in the described visit of the information representation ground of CSoEPS, the IWF that is defined as described UE service was the IWF of ownership place.

4. method according to claim 2 is characterized in that,

Be that this method also comprises before the IWF or the IWF of ownership place on visit ground at the IWF IWF that is defined as described UE service:

Obtain and indicate whether to allow for described UE in the local LBO of triggering of visit ground foundation mode loaded information;

IWF that the then described IWF IWF that is defined as described UE service is visit ground or the step of the IWF of ownership place comprise:

Whether support the described visit of the information representation ground of CSoEPS when described indication visit ground and support CSoEPS, and ought describedly indicate whether to allow for described UE and set up LBO mode loaded information on visit ground and represent to allow for described UE and set up the LBO mode on visit ground and carry, the IWF that is defined as described UE service is the IWF that visits ground;

Perhaps,

Whether support the described visit of the information representation ground of CSoEPS when described indication visit ground and support CSoEPS, and described indicate whether to allow for described UE set up on visit ground LBO mode loaded information represent not allow for described UE visit when setting up the LBO mode and carrying, being defined as the IWF that described UE serves is the IWF of ownership place;

Perhaps,

5. according to claim 3 or 4 described methods, it is characterized in that,

After the IWF that is defined as described UE service is the IWF on visit ground, adopt determined IWF to carry out before the Business Processing, this method also comprises:

Send the request that the LBO mode is carried of setting up of indicating of carrying to the MME on visit ground.

6. according to claim 3 or 4 described methods, it is characterized in that,

After the IWF that is defined as described UE service is the IWF of ownership place, adopt determined IWF to carry out before the Business Processing, this method also comprises:

Send the request that the route HRO mode that goes back home is carried of setting up of indicating of carrying to the MME on visit ground.

7. according to each described method of claim 1-4, it is characterized in that,

If described UE adheres on visit ground, adopt determined IWF to carry out Business Processing and comprise:

If be defined as the IWF of described UE service is when visiting the IWF on ground, sends register requirement to the IWF on described visit ground; When being the IWF of ownership place, send register requirement to the IWF of described ownership place as if the IWF that is defined as described UE service.

8. according to each described method of claim 1-4, it is characterized in that,

If described UE switches to visit ground from ownership place, adopt determined IWF to carry out Business Processing and comprise:

If be defined as the IWF of described UE service is when visiting the IWF on ground, sends register requirement to the IWF on described visit ground; When being the IWF of ownership place, maintain the registration of the IWF of described ownership place as if the IWF that is defined as described UE service.

9. a method for processing business is characterized in that, this method comprises:

Receive the grouped data network PDN connection request message that UE sends;

10. method according to claim 9 is characterized in that,

The IWF of the described UE of being defined as service is visit ground IWF or ownership place IWF is specially:

As visit ground support CSoEPS, the IWF that is defined as the UE service is visit ground IWF;

Do not support CSoEPS when visit ground, the IWF that is defined as the UE service is ownership place IWF.

11. method according to claim 9 is characterized in that,

When visit ground is supported CSoEPS and allows for described UE to set up the LBO mode on visit ground and carry, the IWF that is defined as the UE service be visit IWF;

When CSoEPS was not supported in visit ground, when perhaps visit ground was supported CSoEPS and do not allow for described UE to set up the LBO mode on visit ground and carry, being defined as the IWF that UE serves was ownership place IWF.

12. according to claim 9,10 or 11 described methods, it is characterized in that,

Before the IWF that is defined as the UE service was visit ground IWF or ownership place IWF, this method also comprised:

Determine that the APN APN that carries in the described PDN connection request message is the APN that sign is set up the speech business carrying.

13. a subscriber equipment is characterized in that, comprising:

14. equipment according to claim 13 is characterized in that,

Described indication information acquiring unit is the broadcast receiving element, is used to receive the broadcast of the base station transmission of visiting ground, and whether the described visit of described broadcast indication ground supports CSoEPS;

Perhaps,

Described indication information acquiring unit comprises:

NAS request message transmitting element is used for sending the NAS request message to the described MME on visit ground;

NAS accepts the message sink unit, is used to receive the NAS that described MME sends and accepts message, and described NAS accepts message and comprises whether the described visit of indication ground supports the information of CSoEPS;

Perhaps,

Described indication information acquiring unit comprises:

Registration related news transmitting element is used for sending a request message to the IWF of ownership place;

The response message receiving element is used to receive the response message that the IWF of described ownership place sends, if carry the information of the IWF on visit ground in the described response message, determines described visit ground support CSoEPS.

15. equipment according to claim 14 is characterized in that,

Described first determining unit is used for when whether described indication visit ground supports that CSoEPS is supported on the described visit of the information representation ground of CSoEPS, and the IWF that is defined as described UE service is the IWF on visit ground; When whether described indication visit ground supported that CSoEPS is not supported in the described visit of the information representation ground of CSoEPS, the IWF that is defined as described UE service was the IWF of ownership place.

16. equipment according to claim 14 is characterized in that,

This equipment also comprises: the bearing mode acquiring unit is used to obtain and indicates whether to allow for described UE and set up the local LBO of triggering mode loaded information on visit ground;

Whether support the information representation visit ground of CSoEPS when indication visit ground and support CSoEPS, and set up LBO mode loaded information on visit ground and represent to allow for UE and set up the LBO mode on visit ground and carry when indicating whether to allow for UE, the IWF that described first determining unit is defined as described UE service is the IWF that visits ground; Whether support the described visit of the information representation ground of CSoEPS when described indication visit ground and support CSoEPS, and described indicate whether to allow for described UE set up on visit ground LBO mode loaded information represent not allow for described UE visit when setting up the LBO mode and carrying, it is the IWF of ownership place that described first determining unit is defined as the IWF that described UE serves; When whether described indication visit ground supported that CSoEPS is not supported in the described visit of the information representation ground of CSoEPS, the IWF that described first determining unit is defined as described UE service was the IWF of ownership place.

17., it is characterized in that this equipment also comprises according to claim 15 or 16 described equipment:

The connection request transmitting element is used for when IWF that first determining unit is defined as described UE service is the IWF on visit ground, sends to the MME on visit ground and carries indication and set up the PDN connection request that the LBO mode is carried; Perhaps, when the IWF that is defined as described UE service is the IWF of ownership place, carries indication to the MME on visit ground transmission and set up the PDN connection request that the route HRO mode that goes back home is carried.

18. according to claim 13,14,15 or 16 described equipment, it is characterized in that,

If it is when visiting the IWF on ground that first determining unit is defined as the IWF of described UE service, described processing unit is used for sending register requirement to the IWF on described visit ground;

Perhaps,

When described UE when visit ground adheres to, and first determining unit IWF that is defined as described UE service is when being the IWF of ownership place, described processing unit is used for sending register requirement to the IWF of described ownership place.

19. a mobile management network element is characterized in that, comprising:

20. network element according to claim 19 is characterized in that,

Described second determining unit is used for supporting CSoEPS when visit ground that the IWF that is defined as the UE service is visit ground IWF; Do not support CSoEPS when visit ground, the IWF that is defined as the UE service is ownership place IWF.

21. network element according to claim 19 is characterized in that,

Described second determining unit is used for when visit ground is supported CSoEPS and allow for described UE to set up the LBO mode on visit ground and carry, the IWF that is defined as the UE service be visit IWF; When CSoEPS is not supported in visit ground, perhaps visit ground and support CSoEPS and do not allow for described UE when the local LBO of triggering of visit ground foundation mode is carried that the IWF that is defined as the UE service is ownership place IWF.