CN102405683A

CN102405683A - Bearer processing method and system, and mobility management network elements

Info

Publication number: CN102405683A
Application number: CN2010800018791A
Authority: CN
Inventors: 于益俊; 陆峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2012-04-04
Anticipated expiration: 2030-08-20
Also published as: CN102405683B; WO2011109998A1

Abstract

A bearer processing method and system, and mobility management network elements are provided by the embodiments of the present invention, wherein the bearer processing method includes: during the flow of performing single radio voice call continuity, receiving a handover required message from a source side evolved Node B or a user equipment context release request message from a source side evolved Node B or a suspend message from a target side serving General Packet Radio Service (GPRS) support node; sending a serving gateway a request message, to enable the serving gateway to release the user plane resources of other bearers except voice bearers and to reserve the user plane resources of the voice bearers. The method, system and mobility management network elements provided by the present invention enable a serving gateway to release the user plane resources of other bearers except the voice bearers and to reserve the user plane resources of the voice bearers, and further enable the serving gateway and the packet data network gateway to suspend non-Guaranteed Bit Rate (GBR) bearers and to deactivate other GBR bearers except the voice bearers, thus guaranteeing the normal process of user voice services.

Description

Bearer processing method and system, and mobility management network elements

A kind of bearing processing method, system and mobile management net element

Technical field

The present invention relates to communication technical field, more particularly to a kind of bearing processing method, system and mobile management net element.Background technology

At present, many business of operator all operate in GPRS (General Packet Radio Service, GPRS)/UMTS (Universal Mobile Telecommunications System, UMTS）CS (Circuit Switched, circuit switching）In domain, SRVCC (Single Radio Voice Call Continuity, single wireless voice calling continuity）Technology is used as IMS (IP Multimedia Subsystem, IP multimedia subsystem）The voice continuity scheme at voice deployment initial stage, can be provided for user equipment from E-UTRAN (Evolved UMTS Territorial Radio Access Network, the UMTS Terrestrial radio access network of evolution）To UTRAN (land radio access web, UMTS Territorial Radio Access Network UMTS)/GERAN (GSM EDGE Radio Access Network, GSM EDGE wireless access networks）Seamless switching, obtained the lasting concern of operator.Current SRVCC performance enhancement project researchs, it is intended to improve SRVCC performance of handoffs, avoid interrupting the excessive scene appearance of time delay in handoff procedure as far as possible.

Wherein, using the SRVCC enhanced schemes of local grappling it is one of main suggested design in existing SRVCC enhanced schemes.In the SRVCC enhanced schemes using local grappling, UE performs CSFB, and (CS Fallback, circuit falls after rise）Joint attachment, and pass through MSC (Mobile Switch Center, mobile switching centre）/ MGW (Media Gate Way, WMG）It is registered to IMS, and in SRVCC handoff procedures and SCCAS (Service Centralization and Continuity Application Server, service set and continuous application server）Set up SIP (Session Initiated Protocol, session initiation protocol）Session, MSC/MGW and SGW (Serving Gateway, gateway after SRVCC switchings）Set up GTP (GPRS Tunnel Protocol, GPRS Tunneling Protocol) passage, the speech data for transmitting up-downgoing. For UE (User Equipment, user equipment) scene that SRVCC is switched to the GERAN for not supporting dual transfer mode is performed in E-UTRAN（That is SRVCC from E-UTRAN to GERAN without DTM support), in the existing technical scheme using the SRVCC enhanced schemes of local grappling, once SGW/PGW (Packet Data Network Gateway, grouped data network gateway）Receive after message on hold, SGW/PGW will hang up non-GBR (the Guaranteed Bit Rate, it is ensured that bit rate of the UE）Carry and deactivate the GBR carryings comprising voice bearer, so that the SGW/PGW will abandon the UE received all data messages for including speech business so that now can not be normally carried out speech business by above-mentioned gateway device.The content of the invention

In view of this, the embodiment of the present invention provides a kind of bearing processing method, system and mobile management net element so that during SRVCC, gateway device does not hang up the voice bearer for yet not deactivating user equipment, it is ensured that user speech business is normally carried out.

Embodiments of the invention are adopted the following technical scheme that：

A kind of bearing processing method, including：

In single wireless voice calling continuity flow is performed, the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or the message on hold from target side Serving GPRS Support Node are received；

Request message is sent to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer.

A kind of mobile management net element, including：

Receiving module, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；

Sending module, for sending release access bearer request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer. A kind of mobile management net element, including：

Sending module, message is suspended request for being sent to gateway, trigger the gateway and suspend request message to grouped data network gateway transmission, so that user plane resources of other carryings outside gateway release voice bearer, retain the user plane resource of voice bearer；

And then cause the gateway and grouped data network gateway to hang up non-GBR carryings；Or and then cause the gateway and grouped data network gateway to hang up other carryings outside voice bearer.

A kind of mobile management net element, including：

Sending module, message is suspended request for being sent to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer, non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer；Or

Message is suspended request for being sent to gateway, trigger the gateway and suspend request message to grouped data network gateway transmission, so that the user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer；And then cause grouped data network gateway to hang up non-GBR carryings, and deactivate other GBR carryings outside voice bearer.

One kind carrying processing system, including：

Mobile management net element, for sending release access bearer request message to gateway or suspending request message；

Gateway, for receiving the release access bearer request message from the mobile management net element or suspending request message, perform the user plane resource of other carryings outside release voice bearer, retain the user plane resource of voice bearer, other carryings outside non-GBR carryings or hang-up voice bearer are hung up, are deactivated Other GBR carryings outside voice bearer living.

Using bearing processing method provided in an embodiment of the present invention, system and mobile management net element, in SRVCC flows, MME (Mobility Management Entity, mobile management entity) by sending release access bearer request message to SGW or suspending request message, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it ensure that being normally carried out for user speech business.Brief description of the drawings

Fig. 1 is a kind of flow chart of bearing processing method provided in an embodiment of the present invention；

Fig. 2 a are a kind of signaling process figure of bearing processing method provided in an embodiment of the present invention；

Fig. 2 b are a kind of the second signaling process figure of bearing processing method provided in an embodiment of the present invention；A kind of signaling process figure for bearing processing method that Fig. 3 provides for another embodiment of the present invention；A kind of signaling process figure for bearing processing method that Fig. 4 a provide for further embodiment of this invention；A kind of signaling process figure for bearing processing method that a kind of second signaling process Fig. 5 for bearing processing method that Fig. 4 b provide for further embodiment of this invention provides for yet another embodiment of the invention；Fig. 6 a are a kind of the first schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 6 b are a kind of the second schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 6 c are a kind of the 3rd schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 7 is a kind of the 4th schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 8 a are a kind of the 5th schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 8 b are a kind of the 6th schematic diagram of mobile management net element provided in an embodiment of the present invention；

Fig. 9 is a kind of the 7th schematic diagram of mobile management net element provided in an embodiment of the present invention；

Figure 10 a are a kind of the first schematic diagram for carrying processing system provided in an embodiment of the present invention；

Figure 10 b are a kind of the second schematic diagram for carrying processing system provided in an embodiment of the present invention. Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

All examples below of the present invention is based on the scene of SRVCC handover schemes, that is, is to use local SGW/PGW as anchor point to transmit VoIP (Voice over Internet Protocol, internet protocol voice technology）The scheme of business, for example：Use the SRVCC enhanced schemes of local grappling.The improved description to the bearing processing method of above-mentioned scene is all based in follow-up embodiment, therefore repeatability is no longer done to this scheme scene in embodiments and repeated.

In above-mentioned scene and all examples below of the present invention, UE carrying is divided into GBR carryings and non-GBR carries two classes.Wherein, GBR carryings refer to the carrying with ensures bit rate, including：Other GBR carryings beyond voice bearer and voice bearer.MME/SGW/PGW can be based on QoS Class Identifier（QoS Class Identifier, QCI concrete numerical value) is carried and is identified to above-mentioned voice bearer, non-GBR carryings and GBR^, for example, if the QCI values that only one of which is carried in ^ ^ loads are 1, the carrying can be identified as voice bearer；Or, if the QCI values of such as one carrying are 59, the carrying is identified as non-GBR carryings.MME/SGW/PGW can do the processing such as corresponding hang-up, deactivation, reservation to carrying according to other indication information elements included in above-mentioned QCI numerical value and the message received.

Fig. 1 is a kind of flow chart of bearing processing method provided in an embodiment of the present invention, as shown in Figure 1：Bu Sudden 101, in SRVCC flows are performed, receive the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or the message on hold from target side Serving GPRS Support Node；

Bu Sudden 102, request message is sent to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer.

MME realizes other user plane resources carried outside release voice bearer by following four kinds of modes, retains the user plane resource of voice bearer according to information described in Bu Sudden 101 is received, and to carrying Perform corresponding hang-up and deactivate processing processing, please specifically see description below：

Mode one：

A) MME sends the RAB information for retaining in release access bearer request message, the release access bearer request message comprising voice bearer and indicating or including other carryings outside voice bearer to SGW（The RAB information of GBR carryings beyond non-GBR carryings and voice bearer）, so that the user plane resource of other carryings outside SGW release voice bearers, retains the user plane resource of voice bearer and receives the release access bearer response message from SGW；

B) MME sends to SGW and suspends request message, and the SGW hangs up non-GBR carryings, retains the voice bearer in GBR carryings；Or so that the SGW hangs up other carryings outside voice bearer, the voice bearer in reservation GBR carryings.

Wherein, after message that what the SGW received that MME sends suspend request, SGW sends to PGW and suspends request message, the SGW to PGW send suspend request in message comprising voice bearer retain indicate or need retain voice bearer mark or need hang up voice bearer beyond other carrying marks, the PGW hangs up non-GBR carryings, retains the voice bearer in GBR carryings；Or the PGW hangs up other carryings outside voice bearer, retains the voice bearer in GBR carryings.The mark for needing the voice retained to carry may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", and for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell；The mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell.

SGW receives the hang-up response message from PGW, and MME receives the hang-up response message from SGW, completes to hang up flow.

C) MME sends deleting bearing command messages to SGW, initiates to deactivate flow, SGW deactivates other GBR carryings outside voice bearer.In addition, MME can also initiate the deactivation flow after the release access bearer response message from SGW is received.

The no permanent order relation of execution of above-mentioned tri- steps of A, B, C, can come in MME receptions Triggered simultaneously after handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node is received, but ordinal relation and relation of interdependence without fixation.

Selectable, flow is deactivated described in above-mentioned C to be realized in the following way：SGW is received after the release access bearer request message from MME, and triggering SGW initiates to deactivate flow to PGW, and PGW deactivates other GBR carryings outside voice bearer.

Mode two：

A) MME sends the RAB information for retaining in release access bearer request message, the release access bearer request message comprising voice bearer and indicating or including other carryings outside voice bearer to SGW（The RAB information of GBR carryings beyond non-GBR carryings and voice bearer）, the SGW discharges user plane resources of other carryings outside voice bearer, the user plane resource of reservation voice bearer, and receives the release access bearer response message from SGW；

B) MME sends to SGW and suspends request message, and the SGW hangs up non-GBR carryings, retains the voice bearer in GBR carryings, and deactivate other GBR carryings outside voice bearer.

Wherein, after message that what the SGW received that MME sends suspend request, SGW sends to PGW and suspends request message, the SGW to PGW send suspend request in message comprising voice bearer retain indicate or need retain voice bearer mark or need hang up voice bearer beyond other carrying marks, the PGW hangs up the voice bearer in non-GBR carryings and reservation GBR carryings, and deactivates other GBR carryings outside voice bearer.The mark of the voice bearer for needing to retain may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", and for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell；Described other marks carried needed beyond the voice 7 hung up load may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell. SGW receives the hang-up response message from PGW, and MME receives the hang-up response message from SGW, completes to hang up flow and other processing to carrying.

The above-mentioned Ge Bu Sudden of A, B two no permanent order relation of execution, can the triggering simultaneously after MME receives the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node is received, but ordinal relation and relation of interdependence without fixation.

Mode three：

A) MME sends to SGW and suspends request message, described to suspend request in message comprising other marks carried beyond the voice bearer that voice load retains instruction or needs the mark or needs of the voice bearer retained to hang up；

The user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer, and the non-GBR of hang-up carries and retained the voice bearer in GBR carryings；Or the SGW discharges user plane resources of other carryings outside voice bearer, retains the user plane resource of voice bearer, the voice bearer in other carryings and reservation GBR carryings outside voice bearer is hung up.

Wherein, after message that what the SGW received that MME sends suspend request, SGW sends to PGW and suspends request message, the SGW to PGW send suspend request in message comprising voice bearer retain indicate or need retain voice bearer mark or need hang up voice bearer beyond other carrying marks, the PGW hangs up non-GBR carryings, retains the voice bearer in GBR carryings；Or the PGW hangs up other carryings outside voice bearer, retains the voice bearer in GBR carryings.

The mark of the voice bearer retained the need for described above may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell；The mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell. SGW receives the hang-up response message from PGW, and MME receives the hang-up response message from SGW, completes to hang up flow and other processing to carrying.

B) MME sends deleting bearing command messages to SGW, initiates to deactivate flow, so that SGW deactivates other GBR carryings outside voice bearer.

Selectable, above-mentioned deactivation flow can also be realized in the following way：SGW is received after message is suspended request described in MME, and triggering SGW initiates to deactivate flow to PGW, and PGW deactivates other GBR carryings outside voice bearer.

Mode four：

A) MME sends to SGW and suspends request message, described to suspend request in message comprising other marks carried beyond the voice bearer that the load of voice 7 retains instruction or needs the mark or needs of the voice bearer retained to hang up；The user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer；The SGW hangs up non-GBR carryings, retains the voice bearer in GBR carryings and deactivates other GBR carryings outside voice bearer.

Wherein, after message that what the SGW received that MME sends suspend request, SGW sends to PGW and suspends request message, the SGW is to marks of other carryings beyond the PGW marks suspended request comprising the voice bearer that voice bearer reservation is indicated or needs retain in message sent or the voice bearer for needing hang-up, and the non-GBR carryings of PGW hang-up, other GBR for retaining the voice bearer during GBR is carried and deactivating outside voice bearer are carried.

The mark of the voice bearer retained the need for described above may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, The present embodiment does not limit the title of the cell；The mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell.

SGW receives the hang-up response message from PGW, and MME receives the hang-up response message from SGW, completes to hang up flow and other processing to carrying.

In above-mentioned four kinds of modes, the voice bearer in the reservation GBR carryings can be：Retain the context of the voice bearer, do not change the voice bearer context（Such as MBR）And do not hang up the voice bearer；The non-GBR of hang-up is carried：Retain the context of the non-GBR carryings, and the state of the non-GBR carryings is set to hang-up；Other carryings outside the hang-up voice bearer can be：Retain the context of other carryings outside the voice bearer, and the state of other carryings outside the voice bearer is set to hang-up；Other GBR outside the deactivation voice bearer are carried：Delete the context of other GBR carryings outside the voice bearer.Wherein, if carrying（Such as non-GBR carryings）It is suspended, then SGW/PGW will be abandoned in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then SGW/PGW will normally carry out ip voice（That is VoIP) business.

Using the method described in Bu of embodiment of the present invention Sudden 101 102, in SRVCC flows are performed, MME to SGW by sending request message, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, SGW and PGW hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Fig. 2 a are a kind of signaling process figure of bearing processing method provided in an embodiment of the present invention, as shown in Figure 2 a：

201, in SRVCC flows are performed, MME is received from source eNodeB (Evolved Node B, evolution base station）Handoff requirement message or MME receive the UE context release request messages from source eNodB（UE Context Release Request) or MME receive come from target side SGSN (Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, the message on hold can be hang up notify（Suspend Notification) message, or can carry to suspend request The message of (Suspend Request) extended head（Such as SGSN context Request).

202, source MME initiate release access bearer flow, including：

202a, according to source eNodeB (the Evolved Node B, evolution base station received in 201）Handoff requirement message or MME receive the UE context release request messages from source eNodB（UE Context Release Request) or MME receive come from target side SGSN (Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, source MME to SGW send release accessCarry request（Release Access Bearer Request) message；The release accessCarry the RAB information for retaining in request message comprising voice bearer and indicating or including other carryings outside voice bearer（The RAB information of GBR carryings beyond non-GBR carryings and voice bearer）, the user plane resource of other carryings of the SGW releases in addition to voice bearer, the user plane resource of reservation voice bearer；

Wherein, the user plane resource of other carryings of the release in addition to voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, delete the downlink tunnel network element of other carryings outside voice bearer（Such as access network element）Relevant information, for example tunneling termination mark and address；It is described reservation voice bearer user plane resource can be specifically：Retain the context of the voice bearer, do not change the voice 7 | carry context（Such as voice 7 | carry tunneling termination mark and the address of corresponding downlink tunnel network element）.

202b, SGW send release access bearer response to source MME（Release Access Bearer Response) message.

203, source MME initiate to hang up flow to SGW, including：

203a, source MME send to SGW and suspend request message, and the SGW hangs up non-GBR carryings；Or source MME sends to SGW and suspends request message, the SGW hangs up other carryings outside voice is carried；

Wherein, the SGW hangs up other carryings outside non-GBR carryings or hang-up voice bearer, and following methods can be included but is not limited to by implementing：

If 1) message that suspends request is that the hang-up not extended is notified（Suspend Notification) message When, then the SGW can be with root according to the RAB information for receiving and record in local voice bearer reservation instruction or include other carryings outside voice bearer in step Sudden 202a, and other outside the non-GBR carryings of hang-up or hang-up voice bearer are carried；Or,

If 2) message package that suspends request retains containing voice bearer when indicating message, the SGW can retain according to the voice bearer to be indicated to hang up non-GBR and carries or hang up other carryings outside voice bearer；Or,

If 3) during the mark of the voice bearer for suspending request message package reservation containing needs, the mark that the voice ^ that the needs retain is carried., may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell, and the SGW can carry or hang up other carryings outside voice bearer according to the non-GBR of mark hang-up of the voice bearer for needing to retain；Or,

If 4) during marks of other carryings beyond the voice bearer for suspending request message package hang-up containing needs, the mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell, the non-GBR of mark hang-up that the SGW can be carried according to other beyond the voice bearer for needing to hang up carries or hung up other carryings outside voice bearer.

Wherein, the non-GBR of hang-up, which is carried, can be specifically:Retain the context of the non-GBR carryings, and the state of the non-GBR carryings is set to hang-up；Other carryings outside the hang-up voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, and the state of other carryings outside the voice bearer is set to hang-up.Wherein, if carrying（Such as non-GBR carryings）It is suspended, then SGW abandons Lost in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then SGW will normally carry out ip voice（That is VoIP) business.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change carrying request（Modify Bearer Request), or can be new message, such as SRVCC, which is hung up, notifies (SRVCC Suspend Notification) message, and the present embodiment is to Ci Bu Department: Limitation.

203b, SGW send to PGW and suspend request message；

SGW receive from source MME suspend request message after, SGW sends to PGW and suspends request message, the SGW suspends request message package containing other marks carried beyond the voice bearer that voice bearer retains instruction or needs the mark or needs of the voice bearer retained to hang up to what PGW was sent, now, the PGW can be proceeded as follows：Hang up non-GBR carryings；Or other carryings outside hang-up voice bearer.It implements the respective handling that may refer to that SGW is made in Bu Sudden 203a, and here is omitted.

Wherein, if carrying（Such as non-GBR carryings）It is suspended, then PGW will be abandoned in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then PGW will normally carry out ip voice（That is VoIP) business.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change 7 loads request（Modify Bearer Request) message, or can be new message, such as SRVCC, which is hung up, to be notified（SRVCC Suspend Notification) message, the present embodiment is without limitation.

203c, PGW send to SGW and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

203d, SGW send to MME and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

204, source MME are received after the release access bearer response message from SGW, initiate to deactivate flow, including：

204a, source MME send deleting bearing order (Delete Bearer Command) message to SGW；Wherein, the context of other GBR carryings outside voice bearer is carried in the deleting bearing command messages.

204b, SGW send deleting bearing order (Delete Bearer Command) message to PGW；Wherein, the context of other GBR carryings outside voice bearer is carried in the deleting bearing command messages； 204c, PGW send deleting bearing request (Delete Bearer Request) message to SGW；204d, SGW send deleting bearing request to MME（Delete Bearer Request) message；204e, MME send to delete to SGW carries response（Delete Bearer Response) message；204f, SGW send to PGW and delete 7 | and carry and respond（Delete Bearer Response) message.Above-mentioned Bu Sudden 202, the 203 and 204 no permanent order relation of execution, can the triggering simultaneously after MME receives the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node is received, but ordinal relation and relation of interdependence without fixation.

Using the method described in Bu of embodiment of the present invention Sudden 201 204, in the flow for performing SRVCC, MME is by sending release access bearer request message to SGW and suspending request message, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, SGW and PGW hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Fig. 2 b are a kind of the second signaling process figure of bearing processing method provided in an embodiment of the present invention, as shown in Figure 2 b：

In the present embodiment, compared with the embodiment shown in Fig. 2 a, first three Bu Sudden is identical with Bu Sudden 201 203 in embodiment described in Fig. 2 a, therefore specifically describes the narration that refer in Fig. 2 a embodiments, does not praise state herein.

This present embodiment only to step Sudden 204 thus be described in further detail.

204, SGW is after the release access bearer request message of source MME transmissions is received, and SGW initiates to deactivate carrying flow to PGW, is carried with deactivating other GBR in addition to voice bearer.Wherein, the step is specifically included：

204'a, SGW send deleting bearing order (Delete Bearer Command) message to PGW；Wherein, carry what other GBR in addition to voice bearer were carried in the deleting bearing command messages Context.

204'b, PGW send deleting bearing request to SGW（Delete Bearer Request) message；204'c, SGW send to delete to PGW carries response（Delete Bearer Response) message；The no permanent order relation of execution of above-mentioned steps 202,203, can the triggering simultaneously after MME receives the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node is received, but ordinal relation and relation of interdependence without fixation.

Using Bu of embodiment of the present invention Sudden 201 204, described method, in the flow for performing SRVCC,

MME is by sending release access bearer request message to SGW and suspending request message, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, SGW and PGW hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

The signaling process figure for a kind of bearing processing method that Fig. 3 provides for another embodiment of the present invention, as shown in Fig. 3：

301, in SRVCC flows are performed, MME is received from source eNodeB (Evolved Node B, evolution base station）Handoff requirement message；Or MME receives the UE context release request messages from source eNodB（UE Context Release Request );Or MME is received and is come from target side SGSN (Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, the message on hold can be hang up notify（Suspend Notification) message, or can carry to suspend request（Suspend Request) extended head message（Such as SGSN context Request).

302, source MME initiate release access bearer flow, including：

302a, according to source eNodeB (the Evolved Node B, evolution base station received in 301）Handoff requirement message or MME receive the UE context release request messages from source eNodB（UE Context Release Request) or MME receive come from target side SGSN (Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, source MME to SGW send release access carry request (Release Access Bearer Request) message；The release access carries the RAB information for retaining in request message comprising voice bearer and indicating or including other carryings outside voice bearer（The RAB information of GBR carryings beyond non-GBR carryings and voice bearer）, the user plane resource of other carryings of the SGW releases in addition to voice bearer, the user plane resource of reservation voice bearer；

Wherein, the user plane resource of other carryings of the release in addition to voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, delete the downlink tunnel network element of other carryings outside voice bearer（Such as access network element）Relevant information, for example tunneling termination mark and address；It is described reservation voice bearer user plane resource can be specifically：Retain the context of the voice bearer, do not change the voice bearer context（The tunneling termination mark of the corresponding downlink tunnel network element of such as voice bearer and address）.

302b, SGW send release access bearer response to source MME（Release Access Bearer Response) message.

303, source MME initiate to hang up flow to SGW, including：

303a, source MME send to SGW and suspend request message, and the SGW hangs up non-GBR carryings, and deactivates other GBR carryings outside voice bearer；

Wherein, the SGW hangs up non-GBR carryings, and deactivates other GBR carryings outside voice bearer, and following methods can be included but is not limited to by implementing：

If 1) message that suspends request is that the hang-up not extended is notified（Suspend Notification) message when, then the SGW can be with root according to the RAB information for receiving and record in local voice bearer reservation instruction or include other carryings outside voice bearer in step Sudden 302a, non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer；Or,

If 2) message package that suspends request retains containing voice bearer when indicating message, the SGW can retain according to the voice bearer indicates that hanging up non-GBR carries, and other GBR^ deactivated outside voice bearer are carried；Or, If 3) during the mark of the voice bearer for suspending request message package reservation containing needs, the mark for needing the voice retained to carry may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell, the SGW can hang up non-GBR according to the mark of the voice bearer for needing to retain and carry, and deactivate other GBR carryings outside voice bearer；Or,

If 4) during marks of other carryings beyond the voice bearer for suspending request message package hang-up containing needs, the mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell, the mark that the SGW can be carried according to other beyond the voice bearer for needing to hang up is hung up non-GBR and carried, and other GBR deactivated outside voice bearer are carried.

Wherein, the non-GBR of hang-up, which is carried, can be specifically:Retain the context of the non-GBR carryings, and the state of the non-GBR carryings is set to hang-up；Described other GBR for deactivating non-voice carrying are carried：Delete the context of other GBR carryings outside the voice bearer.

Wherein, if carrying（Such as non-GBR carryings）It is suspended, then SGW will be abandoned in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then SGW will normally carry out ip voice（That is VoIP) business.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change load request（Modify Bearer Request), or can be new message, such as SRVCC, which is hung up, to be notified（SRVCC Suspend Notification) message, the present embodiment is without limitation.

302b, SGW send to PGW and suspend request message；

SGW receive from source MME suspend request message after, SGW sends to PGW and suspends request message, the SGW suspends request message package containing other marks carried beyond the voice bearer that voice bearer retains instruction or needs the mark or needs of the voice bearer retained to hang up to what PGW was sent, now, the PGW can be proceeded as follows：Non- GBR carryings are hung up, and deactivate voice Other GBR carryings outside carrying.It implements the respective handling that may refer to that SGW is made in Bu Sudden 302a, and here is omitted.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change load request（Modify Bearer Request) message, or can be new message, such as SRVCC, which is hung up, to be notified（SRVCC Suspend Notification) message, the present embodiment is without limitation.

303c, PGW send to SGW and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

303d, SGW send to MME and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

Above-mentioned Bu Sudden 302, the 303 no permanent order relation of execution, can the triggering simultaneously after MME receives the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node is received, but ordinal relation and relation of interdependence without fixation.

Using the method described in Bu Sudden of embodiment of the present invention 301-303, in SRVCC flows are performed, MME to SGW by sending release access 7 | and carry request message and suspend request message, so that other user plane resources carried outside SGW release voice ^ loads, retain the user plane resource that voice ^ is carried, SGW and PGW hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

A kind of signaling process figure for bearing processing method that Fig. 4 a provide for further embodiment of this invention, as shown in fig. 4 a： 401, in SRVCC flows are performed, Μ Μ Ε are received from source eNodeB (Evolved Node B, evolution base station）Handoff requirement message；Or MME receives the UE context release request messages from source eNodB（UE Context Release Request );Or MME is received and is come from target side SGSN (Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, the message on hold can be hang up notify（Suspend Notification) message, or can carry to suspend request（Suspend Request) extended head message（Such as SGSN context Request).

402, source MME initiate to hang up flow, including：

402a, source MME send to SGW and suspend request message, the user plane resource of other carryings outside the SGW releases voice bearer, retain the user plane resource of voice bearer, hang up non-GBR carryings；Or cause the SGW to put the user plane resource of other carryings outside voice bearer, retain the user plane resource of voice bearer, hang up other carryings outside voice bearer；

Wherein, the user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer, hangs up non-GBR carryings；The user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer, hangs up other carryings outside voice bearer, following methods can be included but is not limited to by implementing：

If 1) it is described suspend request message package containing voice bearer retain indicate message when, the SGW can retain other the user plane resources carried indicated outside release voice bearer according to the voice bearer, retain the user plane resource of voice bearer, hang up non-GBR carryings；Or the user plane resource of other carryings outside release voice bearer, retain the user plane resource of voice bearer, hang up other carryings outside voice bearer；Or,

If 2) during the mark of the voice bearer for suspending request message package reservation containing needs, the mark for needing the voice retained to carry may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell, the SGW can discharge other user plane resources carried outside voice bearer according to the mark of the voice bearer for needing to retain, retain the user plane resource of voice bearer, hang up non-GBR carryings；Or the user plane resource of other carryings outside release voice bearer, retain the user plane money of voice bearer Source, hangs up other carryings outside voice bearer；Or,

If 3) during marks of other carryings beyond the voice bearer for suspending request message package hang-up containing needs, the mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell, other user plane resources carried outside the mark release voice bearer that the SGW can be carried according to other beyond the voice bearer for needing to hang up, retain the user plane resource of voice bearer, hang up non-GBR carryings；Or the user plane resource of other carryings outside release voice bearer, retain the user plane resource of voice bearer, hang up other carryings outside voice bearer.

Wherein, the user plane resource of other carryings of the release in addition to voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, delete the downlink tunnel network element of other carryings outside voice bearer（Such as access network element）Relevant information, for example tunneling termination mark and address；It is described reservation voice bearer user plane resource can be specifically：Retain the context of the voice bearer, do not change the voice bearer context（The tunneling termination mark of the corresponding downlink tunnel network element of such as voice bearer and address）；The non-GBR of hang-up is carried：Retain the context of the non-GBR carryings, and the state of the non-GBR carryings is set to hang-up；Other carryings outside the hang-up voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, and the state of other carryings outside the voice bearer is set to hang-up.Wherein, if carrying（Such as non-GBR carryings）It is suspended, then SGW will be abandoned in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then SGW will normally carry out ip voice（That is VoIP) business.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change load request（Modify Bearer Request), or can be new message, such as SRVCC, which is hung up, notifies (SRVCC Suspend Notification) message, the present embodiment not # zhangs of limitation to this.

402b, SGW send to PGW and suspend request message；

SGW receive from source MME suspend request message after, SGW sends to PGW and hung up Request message, the SGW suspends request message package containing other marks carried beyond the voice bearer that voice bearer retains instruction or needs the mark or needs of the voice bearer retained to hang up to what PGW was sent, now, the PGW can be proceeded as follows：Hang up the voice bearer in non-GBR carryings and reservation GBR carryings；Or the voice bearer in other carryings and reservation GBR carryings outside hang-up voice bearer.It implements the respective handling that may refer to that SGW is made in Bu Sudden 402a, and here is omitted.

402c, PGW send to SGW and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

402d, SGW send to MME and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

403, source MME initiate to deactivate carrying flow to SGW, are carried with deactivating other GBR in addition to voice bearer, the Bu Sudden are specifically included：

403a, source MME send deleting bearing order (Delete Bearer Command) message to SGW；

Wherein, the context of other GBR carryings outside voice bearer is carried in the deleting bearing command messages.

403b, SGW send deleting bearing order (Delete Bearer Command) message to PGW；Wherein, the context of other GBR carryings outside voice bearer is carried in the deleting bearing command messages. 403c, PGW send deleting bearing request (Delete Bearer Request) message to SGW；403d, SGW send deleting bearing request to MME（Delete Bearer Request) message；403e, MME send to delete to SGW carries response（Delete Bearer Response) message；403f, SGW send to PGW and delete 7 | and carry and respond（Delete Bearer Response) message；Above-mentioned Bu Sudden 402, the 403 no permanent order relation of execution, can the triggering simultaneously after MME receives the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；Can also respectively it be triggered after the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node is received, but ordinal relation and relation of interdependence without fixation.

Using the method described in Bu of embodiment of the present invention Sudden 401 403, in SRVCC flows are performed, Μ Μ Ε suspend request message by being sent to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, SGW and PGW hang up non-GBR carryings or hang up other carryings outside voice bearer, it is ensured that user speech business is normally carried out.

A kind of second signaling process figure of bearing processing method that Fig. 4 b provide for further embodiment of this invention, as shown in Figure 4 b:

In the present embodiment, compared with the embodiment shown in Fig. 4 a, the first two steps are identical with Bu Sudden 401 402 in embodiment described in Fig. 4 a, therefore specifically describe the narration that refer in Fig. 4 a embodiments, do not praise state herein.

In this present embodiment only to step Sudden 403, it is described in further detail.

403, SGW receive source MME transmissions suspend request message after, SGW initiates to deactivate carrying flow to PGW, is carried with deactivating other GBR in addition to voice bearer.Wherein, the Bu Sudden are specifically included：

403'a, SGW send deleting bearing order (Delete Bearer Command) message to PGW；Wherein, the context of other GBR carryings outside voice bearer is carried in the deleting bearing command messages. 403, b, PGW send deleting bearing request (Delete Bearer Request) message to SGW；403, c, SGW send to delete to PGW carries response（Delete Bearer Response) message.Using Bu of embodiment of the present invention Sudden 401 403, described method, in the flow that UE performs SRVCC switchings, MME suspends request message by being sent to SGW, so that other user plane resources carried outside SGW release voice bearers, retain the user plane resource that voice is carried, SGW and PGW hang up GBR carryings and deactivate other GBR carryings outside voice bearer, remain UE voice bearer, it is ensured that user speech business is normally carried out.

The signaling process figure for a kind of bearing processing method that Fig. 5 provides for yet another embodiment of the invention, as shown in Fig. 5：

501, in SRVCC flows are performed, MME is received from source eNodeB (Evolved Node B, evolution base station）Handoff requirement message or MME receive the UE context release request messages from source eNodB（UE Context Release Request) or MME receive come from target side SGSN

(Serving GPRS Support Node Serving GPRS Support Nodes）Message on hold, the message on hold can be hang up notify（Suspend Notification) message, or can carry the message for suspending request (Suspend Request) extended head（Such as SGSN context Request).

502, source MME initiate to hang up flow, including：

502a, source MME sends to SGW and suspends request message, the user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer, non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer.

Wherein, the user plane resource of other carryings outside the SGW releases voice bearer, retains the user plane resource of voice bearer, hangs up non-GBR carryings, and other GBR deactivated outside voice bearer are carried, following methods can be included but is not limited to by implementing：

If 1) it is described suspend request message package containing voice bearer retain indicate message when, the SGW can retain other the user plane resources carried indicated outside release voice bearer according to the voice bearer, retain the user plane resource of voice bearer, non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer；Or, If 2) during the mark of the voice bearer for suspending request message package reservation containing needs, the mark for needing the voice retained to carry may be embodied in cell " Bearer to be reserve " or " Voice Bearer ", for indicating that the network element device for receiving the information retains the carrying, the present embodiment does not limit the title of the cell, the SGW can discharge other user plane resources carried outside voice bearer according to the mark of the voice bearer for needing to retain, retain the user plane resource of voice bearer, hang up non-GBR carryings, and other GBR deactivated outside voice bearer are carried；Or,

If 3) during marks of other carryings beyond the voice bearer for suspending request message package hang-up containing needs, the mark of other carryings beyond the voice bearer for needing to hang up may be embodied in cell " Bearer to be suspend " or " Bearer Context ", for indicating that the network element device for receiving the information hangs up the carrying, the present embodiment does not limit the title of the cell, other user plane resources carried outside the mark release voice bearer that the SGW can be carried according to other beyond the voice bearer for needing to hang up, retain the user plane resource of voice bearer, hang up non-GBR carryings, and other GBR deactivated outside voice bearer are carried.

Wherein, the user plane resource of other carryings of the release in addition to voice bearer can be specifically：Retain the context of other carryings outside the voice bearer, delete the downlink tunnel network element of other carryings outside voice bearer（Such as access network element）Relevant information, for example tunneling termination mark and address；It is described reservation voice bearer user plane resource can be specifically：Retain the context of the voice bearer, do not change the voice bearer context（The tunneling termination mark of the corresponding downlink tunnel network element of such as voice bearer and address）；The non-GBR of hang-up is carried：Retain the context of the non-GBR carryings, and the state of the non-GBR carryings is set to hang-up；Other GBR outside the deactivation voice bearer are carried：Delete the context of other GBR carryings outside the voice bearer.Wherein, if carrying (such as non-GBR carryings）It is suspended, then SGW abandons Lost in its corresponding message of the carrying received, the present embodiment, because voice bearer retains and is not suspended, then SGW will normally carry out ip voice（That is VoIP) business.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change load request（Modify Bearer Request) message, or can be new disappear Breath, such as SRVCC, which is hung up, to be notified（SRVCC Suspend Notification) message, the present embodiment is without limitation.

502b, SGW send to PGW and suspend request message；

SGW receive from source MME suspend request message after, SGW sends to PGW and suspends request message, the SGW suspends request message package containing other marks carried beyond the voice bearer that voice bearer retains instruction or needs the mark or needs of the voice bearer retained to hang up to what PGW was sent, now, the PGW can be proceeded as follows：Non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer.It implements the respective handling that may refer to that SGW is made in Bu Sudden 502a, and here is omitted.

Wherein, the message that suspends request can be that existing hang up notifies（Suspend Notification) message either father change carrying request（Modify Bearer Request) message, or can be new message, such as SRVCC, which is hung up, to be notified（SRVCC Suspend Notification) message, the present embodiment is without limitation.

502c, PGW send to SGW and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

502d, SGW send to MME and hang up response message；Wherein, the hang-up response message is specially to hang up response (Suspend Acknowledge) message.

Using the method described in Bu of embodiment of the present invention Sudden 501 502, in SRVCC flows are performed, MME suspends request message by being sent to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, SGW and PGW hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Fig. 6 a are a kind of the first schematic diagram of mobile management net element provided in an embodiment of the present invention, and as shown in Figure 6 a, the mobile management net element includes： Receiving module 601, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；

Sending module 602, for sending release access bearer request message to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retains the user plane resource of voice bearer.

Fig. 6 b are a kind of the second schematic diagram of mobile management net element provided in an embodiment of the present invention, and as shown in Figure 6 b, on the basis of Fig. 6 a illustrated embodiments, the mobile management net element also includes：

Flow initiation module 603 is hung up, message is suspended request for being sent to the SGW, the SGW is triggered and suspends request message to PGW transmissions, so that the SGW and PGW hangs up non-GBR carryings, retains voice bearer；Or so that the SGW and PGW hangs up other carryings outside voice bearer.

Fig. 6 c are a kind of the 3rd schematic diagram of mobile management net element provided in an embodiment of the present invention, and as fig. 6 c, on the basis of Fig. 6 b illustrated embodiments, the mobile management net element also includes：

Flow initiation module 604 is deactivated, for initiating to deactivate flow to the SGW, so that the SGW deactivates other GBR carryings outside voice bearer.

Using the mobile management net element described in Fig. 6 a Fig. 6 of embodiment of the present invention c, in SRVCC flows are performed, processing unit is carried by sending release access bearer request message to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Fig. 7 is a kind of the 4th schematic diagram of mobile management net element provided in an embodiment of the present invention, as shown in fig. 7, the mobile management net element includes：

Receiving module 701, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；

Sending module 702, for sending release access bearer request message to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retains voice bearer. Hang up flow initiation module 703, message is suspended request for being sent to the SGW, the SGW is triggered and suspends request message to PGW transmissions, so that the SGW and PGW hangs up non-GBR carryings, retain voice bearer, and deactivate other GBR carryings outside voice bearer.

Using the mobile management net element described in Fig. 7 of the embodiment of the present invention, in SRVCC flows are performed, processing unit is carried by sending release access bearer request message to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Fig. 8 a are a kind of the 5th schematic diagram of mobile management net element provided in an embodiment of the present invention, as shown in figure 8, the mobile management net element includes：

Receiving module 801, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；

Sending module 802, message is suspended request for being sent to SGW, is triggered the SGW and is suspended request message to PGW transmissions, so that user plane resources of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer；And then cause the SGW and PGW to hang up non-GBR carryings；Or and then cause the SGW and PGW to hang up other carryings outside voice bearer.

Fig. 8 b are a kind of the 6th schematic diagram of mobile management net element provided in an embodiment of the present invention, and as shown in Figure 8 a, on the basis of Fig. 8 b illustrated embodiments, the mobile management net element also includes：

Flow initiation module 803 is deactivated, for initiating to deactivate flow to SGW, so that SGW deactivates other GBR carryings in addition to voice bearer.

Using the mobile management net element described in Fig. 8 a Fig. 8 of embodiment of the present invention b, in SRVCC flows are performed, carrying processing unit suspends request message by being sent to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out. Fig. 9 is a kind of the 7th schematic diagram of mobile management net element provided in an embodiment of the present invention, as shown in figure 9, the mobile management net element includes：

Receiving module 901, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side Serving GPRS Support Node；

Sending module 902, message is suspended request for being sent to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retains the user plane resource of voice bearer, non- GBR carryings are hung up, and deactivate other GBR carryings outside voice bearer；Or

For suspending request message to SGW, trigger the SGW and suspend request message to PGW transmissions, so that the user plane resource of other carryings outside the SGW releases voice bearer, retain the user plane resource of voice bearer, and then cause PGW to hang up non-GBR carryings, and deactivate other GBR carryings outside voice bearer.

Using the mobile management net element described in Fig. 9 of the embodiment of the present invention, in SRVCC flows are performed, carrying processing unit suspends request message by being sent to SGW, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out.

Figure 10 a are a kind of the first schematic diagram for carrying processing system provided in an embodiment of the present invention, and as shown in Figure 10 a, the load processing system includes：

Mobile management net element 1001, for sending release access bearer request message to SGW or suspending request message；

Gateway 1002, for receiving the release access bearer request message from the mobile management net element or suspending request message, perform the user plane resource of other carryings outside release voice bearer, retain the user plane resource of voice bearer, other carryings outside non-GBR carryings or hang-up voice bearer are hung up, other GBR carryings outside voice bearer are deactivated.

Figure 10 b are a kind of the second schematic diagram for carrying processing system provided in an embodiment of the present invention, such as Figure 10 b Show, on the basis of Figure 10 a, the carrying processing system further comprises：

Grouped data network gateway 1003, for receiving the message that suspends request from the SGW, performs other carryings hung up outside non-GBR carryings or hang-up voice bearer, deactivates other GBR carryings outside voice bearer.

Using the load processing system described in Figure 10 a of embodiment of the present invention 10b, in SRVCC flows are performed, carrying processing unit to SGW by sending release access bearer request message or suspends request message, so that the user plane resource of other carryings outside SGW release voice bearers, retain the user plane resource of voice bearer, and then cause SGW and PGW to hang up non-GBR carryings and deactivate other GBR carryings outside voice bearer, it is ensured that user speech business is normally carried out

One of ordinary skill in the art will appreciate that：Realizing all or part of Bu Sudden of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in computer read/write memory medium, and upon execution, execution includes above method embodiment Bu Sudden to the program；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.Bright spirit and scope.So, if these modifications and variations of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims

Claims

1st, a kind of bearing processing method, it is characterised in that including：

In single wireless voice calling continuity flow is performed, the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or the message on hold from target side Serving GPRS Support Node are received；

Request message is sent to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer.

2nd, bearing processing method according to claim 1, it is characterized in that, described to send request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retaining the user plane resource of voice bearer includes：

Release access bearer request message is sent to gateway, retain the RAB information for indicating or including other carryings outside voice bearer comprising voice bearer in the release access bearer request message, the user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer.

3rd, bearing processing method according to claim 2, it is characterised in that also include：Sent to the gateway and suspend request message；

The gateway hangs up non-guaranteed bit rate GBR carryings, retains voice bearer.

4th, bearing processing method according to claim 2, it is characterised in that also include：Sent to the gateway and suspend request message；

The gateway hangs up other carryings outside voice bearer, retains voice bearer.

5th, bearing processing method according to claim 3, it is characterised in that also include：The gateway sends to grouped data network gateway and suspends request message, and described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The grouped data network gateway hangs up non-GBR carryings, retains voice bearer.

6th, bearing processing method according to claim 4, it is characterised in that also include： The gateway sends to grouped data network gateway and suspends request message, described to suspend request in message comprising the mark that voice bearer retains instruction or the mark for needing the voice bearer retained or needs other ^ beyond the voice load hung up to carry；

The grouped data network gateway hangs up other carryings outside voice bearer, retains voice bearer.

7th, according to any described bearing processing methods of claim 3-6, it is characterised in that also include：Initiate to deactivate flow to the gateway, the gateway deactivates other GBR carryings outside voice bearer.

8th, according to any described bearing processing methods of claim 3-6, it is characterised in that after the transmission release access bearer request message to gateway, in addition to：

The gateway initiates to deactivate flow to grouped data network gateway, and the grouped data network gateway deactivates other GBR carryings outside voice bearer.

9th, bearing processing method according to claim 2, it is characterised in that also include：

Sent to the gateway and suspend request message；

The gateway hangs up non-GBR carryings, retains voice bearer, and deactivate other GBR carryings outside voice bearer.

10th, bearing processing method according to claim 9, it is characterised in that also include：The gateway sends Xiang Fen Group data network gateway and suspends request message, and described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The grouped data network gateway hangs up non-GBR carryings, retains voice bearer, and deactivate other GBR carryings outside voice bearer.

11st, the bearing processing method according to claim 1, it is characterized in that, described to send request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retaining the user plane resource of voice bearer includes：

Sent to gateway and suspend request message, other carryings beyond the mark suspended request comprising the voice bearer that voice bearer reservation is indicated or needs retain in message or the voice bearer for needing hang-up Mark；

The user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer, hangs up non-GBR carryings.

12nd, the bearing processing method according to claim 1, it is characterized in that, described to send request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retaining the user plane resource of voice bearer includes：

Sent to gateway and suspend request message, described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer, hangs up other carryings outside voice bearer.

13rd, bearing processing method according to claim 11, it is characterised in that also include：The gateway sends to grouped data network gateway and suspends request message, and described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The grouped data network gateway hangs up non-GBR carryings and retains voice bearer.

14th, bearing processing method according to claim 12, it is characterised in that also include：The gateway sends to grouped data network gateway and suspends request message, described to suspend request in message comprising the mark that voice bearer retains instruction or the mark for needing the voice bearer retained or needs other ^ beyond the voice load hung up to carry；

The grouped data network gateway hangs up other carryings outside voice bearer and retains voice bearer.

15th, according to any described bearing processing methods of claim 11-14, it is characterised in that also include：Initiate to deactivate flow to the gateway, the gateway deactivates other GBR 7 in addition to voice bearer | carry.

16th, according to any described bearing processing method of claim 11 or 14, it is characterised in that it is described sent to gateway suspend request message after, in addition to：The gateway is to packet data network Gateway initiates to deactivate flow, and the grouped data network gateway deactivates other GBR carryings outside voice bearer.

17th, the bearing processing method according to claim 1, it is characterized in that, described to send request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retaining the user plane resource of voice bearer includes：

Sent to the gateway and suspend request message, described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer；

The gateway hangs up non-GBR carryings, deactivates other GBR carryings outside voice bearer.

18th, bearing processing method according to claim 17, it is characterised in that also include：The gateway sends to grouped data network gateway and suspends request message, and described suspend request retains instruction or the mark for needing the voice bearer retained comprising voice bearer in message or need other marks carried beyond the voice bearer hung up；

The grouped data network gateway hangs up non-GBR carryings, deactivates other GBR carryings outside voice bearer.

19th, a kind of mobile management net element, it is characterised in that including：

Receiving module, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node；

Sending module, for sending release access bearer request message to gateway, so that the user plane resource of other carryings outside gateway release voice bearer, retains the user plane resource of voice bearer.

20th, mobile management net element according to claim 19, it is characterised in that also include：Flow initiation module is hung up, message is suspended request for being sent to the gateway, the gateway is triggered and suspends request message to grouped data network gateway transmission, so that the gateway and grouped data Network gateway hangs up non-GBR carryings；Or so that the gateway and grouped data network gateway hang up other carryings outside voice bearer.

21st, mobile management net element according to claim 20, it is characterised in that also include：Flow initiation module is deactivated, for initiating to deactivate flow to the gateway, so that the gateway deactivates other GBR carryings outside voice bearer.

22nd, mobile management net element according to claim 19, it is characterised in that also include：Hang up flow initiation module, message is suspended request for being sent to the gateway, trigger the gateway and suspend request message to grouped data network gateway transmission, so that the gateway and grouped data network gateway hang up non-GBR carryings, and deactivate other GBR carryings outside voice bearer.

23rd, a kind of mobile management net element, it is characterised in that including：

Receiving module, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node；

Sending module, message is suspended request for being sent to gateway, trigger the gateway and suspend request message to grouped data network gateway transmission, so that user plane resources of other carryings outside gateway release voice bearer, retain the user plane resource of voice bearer；

And then cause the gateway He Fen Group data network gateway hangs up non-GBR carryings；Or and then cause the gateway and grouped data network gateway to hang up other carryings outside voice bearer.

24th, mobile management net element according to claim 23, it is characterised in that also include：Flow initiation module is deactivated, for initiating to deactivate flow to gateway, so that gateway deactivates other GBR carryings in addition to voice bearer.

25th, a kind of mobile management net element, it is characterised in that including：

Receiving module, for receiving the handoff requirement message from source evolution base station or the customer equipment context releasing request message from source evolution base station or message on hold from target side service GPRS supporting node；

Sending module, message is suspended request for being sent to gateway, so that the gateway discharges language The user plane resource of other carryings outside sound carrying, retains the user plane resource of voice bearer, hangs up non-GBR carryings, and deactivate other GBR carryings outside voice bearer；Or

Message is suspended request for being sent to gateway, trigger the gateway and suspend request message to grouped data network gateway transmission, so that the user plane resource of other carryings outside the gateway release voice bearer, retains the user plane resource of voice bearer；And then cause grouped data network gateway to hang up non-GBR carryings, and deactivate other GBR carryings outside voice bearer.

26th, a kind of carrying processing system, it is characterised in that including：

Mobile management net element, for sending release access bearer request message to gateway or suspending request message；

Gateway, for receiving the release access bearer request message from the mobile management net element or suspending request message, perform the user plane resource of other carryings outside release voice bearer, retain the user plane resource of voice bearer, other carryings outside non-GBR carryings or hang-up voice bearer are hung up, other GBR carryings outside voice bearer are deactivated.

27th, carrying processing system according to claim 26, it is characterised in that also include：Grouped data network gateway, for receiving the message that suspends request from the gateway, performs other carryings hung up outside non-GBR carryings or hang-up voice bearer, deactivates other GBR carryings outside voice bearer.