CN102369756A

CN102369756A - Switch method and equipment

Info

Publication number: CN102369756A
Application number: CN2009801582971A
Authority: CN
Inventors: 帅扬来; 吴晓波; 戴明增; 钟鑫
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2012-03-07
Anticipated expiration: 2029-05-04
Also published as: CN102369756B; WO2010127478A1

Abstract

A switch method includes: determining whether a UE supports simultaneous 1X Voice and EV-DO Data (SVDO) (101); judging, according to network status, whether to perform an optimized or a non-optimized circuit switched fallback (CSFB) and packet-switched (PS) joint switch operation, so as to enable said UE to continue to perform data service while in the process of carrying out CSFB (102). When a UE supports SVDO capability, in the process of a CSFB operation, it is able to switch pertinent PS service to a target PS network, thereby enabling the UE to continue to use PS data service.

Description

Switch method and equipment

A kind of switching method and apparatus

Technical field

The present embodiments relate to network field, more particularly to a kind of joint handoff method and apparatus.Background technology

At present, Long Term Evolution（Long Term Evolved, hereinafter referred to as：LTE) network/system architecture evolution（System Architecture Evolved, hereinafter referred to as：SAE) network turns into an important research topic.Wherein, LTE aims to provide a kind of network that can be reduced time delay, improve user data rate, improvement power system capacity and low cost covering, and it uses packet（PS) domain business, bearer network is Internet Protocol（Internet Protocol, hereinafter referred to as：IP) carry.

From prior art, in LTE system, Voice traffic data is typically controlled by IMS, so speech business is generally known as VoIP speech businesses in SAE/LTE.And for traditional speech business, be typically all carried on CS TDM.Deployment of the LTE in the starting stage is focus covering, and provides the network of circuit domain voice service, and such as GSM/UMTS, CDMA2000 lx (abbreviation lx) can regard a kind of all standing as to a certain extent.In the LTE early deployment stage, IMS may not disposed, mainly provide high-speed data service.Therefore a kind of offer is needed to return back to CS domains to support the mechanism of audio call from LTE system.

Wish network transition to LTE system progressively now with the operator of blunt many lx networks, it is desirable to be able to which reusing lx network enables terminal that the business in CS domains is delivered into user when LTE network is serviced.With this CS fallback, (CSFB, CS retract）The terminal of ability can carry out pre-registration when E-UTRAN is connected in lx circuit domains, can set up audio call using lx system access in advance in CS.

In the research and practice process to prior art, inventor has found that prior art has problems with：When occurring IxRTT CSFB, for UE carrying, SAE/LTE networks release GBR Carrying, hangs up Non-GBR carryings, so causes UE can not be continuing with PS data services, cause the blunt difference of Consumer's Experience.

The content of the invention

The embodiments of the invention provide a kind of switching method and apparatus, UE can be worked as and support SVDO (the voice-and-data operations of simutaneous voice and DO operation simultaneously) ability, UE can receive and dispatch lxRTT data and eHRPD data simultaneously, during occurring lxRTT CSFB, can be by related PS service switchings to eHRPD network, so that UE can be continuing with PS data services.

The embodiments of the invention provide a kind of switching method, including：Determine that UE supports SVDO;Judge to perform the joint operation of CSFB and PS non-optimized switchovers according to network condition or perform CSFB and PS excellent the embodiments of the invention provide a kind of device of switching, including determining module and judge module, the determining module is used to determine that UE supports SVDO;The judge module is used to judge to perform the joint operation of CSFB and PS non-optimized switchovers according to network condition or performs the joint operation that CSFB and PS optimizes switching.

In the embodiment of the present invention, when UE supports SVDO abilities, UE can receive and dispatch lxRTT data and eHRPD data simultaneously, during occurring lxRTT CSFB, using optimization switching to non-optimized switchover by related PS service switchings to eHRPD network, so as to which UE can be continuing with PS data services, Consumer's Experience is improved.Brief description of the drawings

Fig. 1 is the flow chart of the switching method of embodiment one provided in an embodiment of the present invention；

Fig. 2 is the flow chart of embodiment two provided in an embodiment of the present invention；

Fig. 3 is the flow chart of embodiment three provided in an embodiment of the present invention； Fig. 4 is the flow chart of example IV provided in an embodiment of the present invention；

Fig. 5 is the flow chart of embodiment five provided in an embodiment of the present invention；

Fig. 6 is the flow chart of embodiment six provided in an embodiment of the present invention；

Fig. 7 is the flow chart of embodiment seven provided in an embodiment of the present invention；

Fig. 8 is the flow chart of embodiment eight provided in an embodiment of the present invention；

Fig. 9 is the structural representation of switching device provided in an embodiment of the present invention.The embodiment embodiment of the present invention is based primarily upon CSFB (CS Fallback, CS domains voice fallbacks）Calling procedure.It should be noted that it will be appreciated by those skilled in the art that for CSFB called flows, its processing procedure is similar, and just no longer Redundant is stated here.

It should be understood by those skilled in the art that; there is provided technical scheme is provided according to the present invention; there can be close or similar technical scheme to be applied to during LTE to 2G/3G CSFB, or be applied to during SRVCC, above-mentioned technical proposal all should be in protection scope of the present invention.

A kind of joint handoff method, methods described includes：

Determine that UE supports SVDO;

The joint operation for judging to perform the joint operation of CSFB and PS non-optimized switchovers or perform CSFB and PS optimization switchings according to network condition, to cause the UE to proceed data service during CSFB is carried out.

In embodiments of the present invention, UE SVDO abilities can also be carried in the information unit of UE attribute as UE wireless capability as UE network capabilities.Illustrated with reference to Fig. 2 SVDO as UE wireless capability when, UE is by the process of the capability reporting network side；As shown in Fig. 2, embodiment 2 is specially：

Step 201 represents that the initial context that eNB receives MME transmissions sets up solicited message；Step 202 represents whether the initial context that eNB analyses are received is set up in solicited message takes SVDO abilities with the UE, if not having, perform step 203a and step 203b;If so, then performing step 204;

Step 203a and step 203b represent that the eNB initiates UE capability query flows：Specifically, step 203a, the eNB sends UE capability query information to the UE, step 203b, the UE is sent to the eNB includes the UE the ability informations whether UE supports SVDO abilities, and whether eNB can support SVDO abilities to do measurement action and/or do switch decision action according to UE；

Step 204 is represented, represents that the eNB under the situation that the UE and eNB holdings are connected, stores the information whether UE supports SVDO abilities, whether the UE is supported to the information deletion of SVDO abilities when the UE enters idle condition；

Step 205 represents that eNB can send UE ability informations to MME and indicate, by the SVDO capability reportings of the UE to MME;

Step 206 represents that the MME stores the SVDO abilities of the UE when UE adheres to always.As shown in figure 3, illustrated with reference to Fig. 3 SVDO as UE network capabilities when, UE is by the process of the capability reporting network side.Embodiment 3 is specially：

Step 301 represents that UE passes through Non-Access Stratum（NAS) whether the UE is supported SVDO functions to be sent to MME by message, the Non-Access Stratum（NAS) message can be that attach request or the band of position update request or service request；

Step 302 represents whether the UE is supported SVDO functions to be sent to eNB by MME by S1 message.The S1 message can for UE CONTEXT MODIFICATION REQUEST and or INITIAL CONTEXT SETUP REQUST message.

Illustrated with reference to Fig. 4 by the combination control method of the CSFB and PS non-optimized switchovers of network controls.

Step 401 represents that UE adheres in E-UTRAN and carries out pre-registration by S102 tunnels and lxRTT CS.Whether the UE is supported SVDO capability reporting to network side, the SVDO abilities can be reported as UE network capabilities, can also be reported as the wireless capability of the UE by the UE in E-UTRAN attaching process.Specifically process is reported referring to embodiment 2 and embodiment 3; Step 402 represents that UE determines to initiate IX RTT calling procedures, and the IX RTT calling procedures are common CSFB calling procedures；

Step 403 represents that UE sends extended Service Request (service request of extension) message to MME, and MME sends solicited message to eNB according to UE state, if UE is in idle condition, performs step 404a;If UE is active, step 404b is performed;

Step 404a represents that MME sends SI initial UE Context Setup and (sets up SI initial contexts）Message is to eNB;

Step 404b represents that MME sends SI UE Context Modification (modification SI initial contexts）Message is to eNB;

Optionally, step 405 is represented, the eNB receive the initial UE Context Setu information of S 1 or

SI UE Context Modification information sends measurement solicited message to UE, and the UE receives the solicited message, and triggers progress IX RTT measurements and/or eHRPD measurements；

Step 406 is represented, UEs of the eNB based on acquisition SVDO abilities, it is preferred that, it is also based at least one in measurement report, network configuration, S1-AP information and carrying foundation that UE is reported, the eNB determines execution CSFB and Non-optimized PS HO joint operations, and the foundation that eNB judges can be at least one in following condition：

ENB determines that measurement report that terminal supports that SVDO abilities and eNB are reported according to UE determines that Pre-registration fails and there is qualified eHRPD network according to UE ability informations；With

ENB determines that terminal supports SVDO abilities according to UE ability informations, also, determines that terminal does not support PS optimization switchings；And eNB determines there is qualified eHRPD network according to the UE measurement reports reported or network configuration；With

ENB determines that terminal supports SVDO abilities according to UE ability informations；And eNB determines there is qualified eHRPD network according to the UE measurement reports reported or network configuration；And eNB determines that network does not support PS optimization switchings；With

Although eNB determines that terminal supports SVDO abilities and eNB determines that qualified eHRPD network is not present according to the UE measurement reports reported or network configuration according to UE ability informations, eNB is determined Allow terminal to carry out the blind of PS to cut (Blind Handover).

Wherein network configuration can include network for information such as support, the configurations of lx RTT or HRPD neighboring BS information of PS switching types; it should be understood by those skilled in the art that; following method is only citing, and other methods close or similar to this method all should belong to protection scope of the present invention.

Step 407 is represented, eNB determines to carry out CSFB and PS non-optimized switchover joint operations according to above-mentioned deterministic process, the eNB sends RRC connection Release message to UE and UE is redirected in IX RTT and eHRPD network, at least one of at least one in IX RTT frequency point information and cell information and the frequency point information also including eHRPD network and cell information can be included in the RRC connection Release message, the above- mentioned information that then UE can include according to the RRC connection Release message is switched over.Optionally, at least one in IX RTT frequency point information and cell information can also be included in the RRC connection Release, then UE is received after this message and to be determined that the qualified eHRPD network that periphery is present carries out non-optimized switchover to the eHRPD network according to information such as eHRPD network scanning results.Optionally, the redirection reason for representing CSFB and non-optimized switchover PS HO joint operations, such as CSFB to IX and non-optimized switchover to HRPD networks can also be included in the RRC connection Release message.Optionally, at least one in IX RTT frequency point information and cell information can also be included in the RRC connection Release, and also include the instruction for indicating that the UE is switched to HRPD networks, while make it that UE is redirected to IX networks, indicate that UE carries out non-optimized switchover to HRPD networks.Optionally, at least one in the frequency point information and cell information of eHRPD network can also be included in the RRC connection Release, and also include the instruction for indicating that the UE carries out CSFB to lx RTT, while make it that UE is redirected to eHRPD, indicate in UECSFB to lx RTT.Optionally, can also include in the RRC connection Release switching 000 (Change cell out) is to 1XRTT network and indicates that the UE is switched to the configured information of HRPD networks, the configured information can also reside in switch in CCO orders.

Optionally, step 408 is represented, eNB initiates UE context release request flows, is carried out translating for S1 connections and is put, and it is idle condition to set UE states, and the context, which is translated to put, asks flow identical with flow of the prior art.Optionally, translating to put in the UE contexts can include in solicited message representing CSFB Cause information is put with translating for PS non-optimized switchover joint operations（Release cause), such as " CSFB and PS HO triggered " (CSFB and PS handover triggers）MME to receive this to translate to put after cause information, it is controlled for the follow-up paging on the UE, such as indicates message when the SGW downlink datas for receiving the UE are sent to MME, MME receives the instruction message and do not notify the eNB initiation pagings process.The context translate put request flow it is identical with flow of the prior art, no longer Redundant is stated herein；Step 409 represents, the UE carry out standard 1X RTTMO (Mobile originated, what terminal caller was initiated）Call setup flow, this is prior art, and no longer Redundant is stated herein；

Step 410 represents that UE carries out performing flow by the non-optimized switchover of E-UTRAN networks to eHRPD, and this is prior art, and no longer Redundant is stated herein.

The embodiment of the present invention 5 is illustrated with reference to Fig. 5, this example illustrates one kind of terminal control

CSFB and PS non-optimized switchover combination control methods.As shown in figure 5,

Step 501 represents that UE adheres in E-UTRAN and carries out pre-registration by S102 tunnels and lxRTT CS.Whether the UE is supported SVDO capability reporting to network side, the SVDO abilities can be reported as UE network capabilities, can also be reported as the wireless capability of the UE by the UE in E-UTRAN attaching process.Specifically process is reported referring to embodiment 2 and embodiment 3;

Step 502 is represented, represents that UE determines to initiate 1XRTT calling procedures, the 1XRTT calling procedures are common CSFB calling procedures；

Step 503 represents that UE scanning eHRPD networks determine to perform Non-optimized PS HO.For example, UE is by measuring eHRPD network, determined to perform Non-optimized PS HO according to measurement result, optionally, UE can also determine to perform Non-optimized PS HO according to network configuration information;Step 504 is represented, UE sends Extended Service Request (service request of extension) message and Non-optimized PS HO configured information to MME, MME sends solicited message according to UE state to eNB, if UE is in idle condition, step 505a is performed;If UE is active, step 505b is performed;

Step 505a represents that MME sends the initial UE Context Setup of S 1 and (sets up the initial contexts of S 1）Message and Non-optimized PS HO configured information are to eNB； Step 505b represents that MME sends SI UE Context Modification (modification SI initial contexts) message and Non-optimized PS HO configured information to eNB；

Optionally, step 506 is represented, the eNB receives the initial UE Context Setu information of S 1 or SI UE Context Modification information and sends IX RTT measurement configured informations to UE, the UE receives the configured information, and progress IX RTT measurements are triggered, give eNB by blunt accuse of measurement 4 on IX RTT networks;

Step 507 represents that eNB sends RRC connection Release message to UE, redirects UE access lxRTT, this is prior art, no longer praises state herein..Optionally, step 508 is represented, the SVDO abilities of UE based on acquisition, at least one of it is preferred that, the Non-optimized PS HO for being also based on UE transmissions are indicated, in the information such as network configuration, eNB initiation UE contexts, which are translated, puts request flow, the release of S1 connections is carried out, it is idle condition to set UE states, the context release request flow is identical with flow of the prior art.Optionally, translating to put in the UE contexts can include in solicited message representing that CSFB and translating for non-optimized switchover PS HO joint operations put cause information（Release cause), such as " CSFB and PS HO triggered " (CSFB and PS handover triggers）, MME to receive this to translate to put after cause information, it is controlled for the follow-up paging on the UE, such as indicates message when the SGW downlink datas for receiving the UE are sent to MME, MME receives the instruction message and do not notify eNB to initiate the paging process.Optionally, if MME knows that the downlink data for having the UE is reached, MME can also indicate to judge that CSFB occurs for the UE according to the Non-optimized HO in step 504, and MME does not trigger paging UE.

Step 508 represents that eNB initiation UE contexts, which are translated, puts request flow, carries out the release of the connections of S 1, it is idle condition to set UE states.It is preferred that, translating to put in the UE contexts can include in solicited message representing that CSFB and translating for non-optimized switchover PS HO joint operations put cause information（Release cause), such as " CSFB and PS HO triggered " (CSFB and PS handover triggers), the flow is identical with flow of the prior art, no longer Redundant is stated herein, it is to be noted that, if Μ Μ Ε know that the downlink data for having the UE is reached, Μ Μ Ε judge that CSFB occurs for the UE according to step 504, and MME does not trigger paging UE.； Step 509 represents that the UE carries out the IX RTTMO call setup flows of standard, and this is prior art, and no longer Redundant is stated herein；

Step 510 represents that UE carries out performing flow by the non-optimized switchover of E-UTRAN networks to eHRPD, and this is prior art, and no longer Redundant is stated herein.

The embodiment of the present invention 6 is illustrated with reference to Fig. 6, embodiment 6 specifically describes CSFB the and PS non-optimized switchover combination control methods of another terminal control.As shown in fig. 6,

Step 601 represents that UE adheres in E-UTRAN and carries out pre-registration by S102 tunnels and lxRTT CS.Whether the UE is supported SVDO capability reporting to network side, the SVDO abilities can be reported as UE network capabilities, can also be reported as the wireless capability of the UE by the UE in E-UTRAN attaching process.Specifically process is reported referring to embodiment 2 and embodiment 3;

Step 602 is represented, represents that UE determines to initiate IX calling procedures, the IX calling procedures are common CSFB calling procedures；

Step 603 represents that UE sends Extended Service Request (service request of extension) message to MME, and the message includes the information for representing the SVDO abilities of the UE, so that MME notifies the eNB SVDO abilities.

MME sends solicited message according to UE state to eNB, if UE is in idle condition, performs step 604a;If UE is active, step 604b is performed;

Step 604a represents that MME sends SI initial UE Context Setup and (sets up SI initial contexts）Message is to eNB;

Step 604b represents that MME sends the UE Context Modification of S 1 (the modification initial contexts of S 1）Message is to eNB;

Optionally, step 605 is represented, the eNB receive the initial UE Context Setu information of S 1 or

SI UE Context Modification information, sends IX RTT to UE and measures configured information, the UE receives the configured information, and triggers progress IX RTT measurements, and the measurement report of the generation is sent into eNB;Step 606 represents that the eNB sends RRC connection Release to UE, redirects

UE accesses lxRTT, and this is prior art, no longer praises state herein. Optionally, step 607 is represented, the SVDO abilities of UE based on acquisition, it is preferred that, it is also based in the information such as network configuration, eNB initiation UE contexts, which are translated, puts request flow, carries out translating for S1 connections and puts, it is idle condition to set UE states, and the context, which is translated to put, asks flow identical with flow of the prior art..It is preferred that, translating to put in the UE contexts can include in solicited message representing that translating for CSFB and PS non-optimized switchover joint operations put cause information（Release cause), such as " CSFB and PS HO triggered " (CSFB and PS handover triggers）MME to receive this to translate to put after cause information, it is controlled for the follow-up paging on the UE, such as indicates message when the SGW downlink datas for receiving the UE are sent to MME, MME receives the instruction message and do not notify the eNB initiation pagings process.

Step 608 represents that the UE carries out the 1XRTT MO call setup flows of standard, and this is prior art, and no longer Redundant is stated herein；

Step 609 represents that UE scanning eHRPD networks obtain available frequency or cell information, decision is switched to eHRPD network；Optionally, this step can at once be performed after step 606.

Step 610 represents that UE carries out performing flow by the non-optimized switchover of E-UTRAN networks to eHRPD, and this is prior art, and no longer Redundant is stated herein.

The embodiment of the present invention 7 is illustrated with reference to Fig. 7, the embodiment of the present invention 7 specifically describes CSFB and PS the optimization switching combination control method of a kind of network controls.

Step 701 represents that UE adheres in E-UTRAN and registered by S102 tunnels in lxRTT CS, and UE is also registered in advance in eHRPD network.UE is in E-UTRAN attaching process, and UE is by the UE on supporting SVDO capability reporting to network side.UE SVDO abilities can be reported as UE network capabilities, can also be reported as UE wireless capability.Specifically process is reported referring to embodiment 2 and embodiment 3;

Step 702 represents that UE determines to initiate 1XRTT calling procedures, and the 1XRTT calling procedures are common CSFB calling procedures；

Step 703 represents that UE sends the Extended Service Request (service requests of extension to MME）Message, MME sends solicited message according to UE state to eNB, if UE is in the free time State, then perform step 704a;If UE is active, step 704b is performed;

Step 704a represents that MME sends SI initial UE Context Setup and (sets up SI initial contexts）Message is to eNB;

Step 704b represents that MME sends SI UE Context Modification (modification SI initial contexts）Message is to eNB;

Optionally, step 705 is represented, the eNB receives the initial UE Context Setu information of S 1 or SI UE Context Modification information and sends IX RTT measurement solicited messages to UE, the UE receives the solicited message, and triggers 1 X RTT of progress measurements and/or eHRPD measurements；

Step 706 is represented, UEs of the eNB based on acquisition SVDO abilities, it is preferred that, it is also based at least one in measurement report, network configuration, S1-AP information and carrying foundation that UE is reported, eNB determines execution CSFB and optimized PS HO joint operation, and the foundation that eNB judges can be：ENB determines the measurement report that terminal supports SVDO abilities and eNB to be reported according to UE according to UE ability informations, optionally, eNB can also set up at least one in situation according to network configuration, S1-AP information and carrying, determine that Pre-registration succeeds and there is qualified eHRPD network.Wherein network configuration can include network for information such as support, the configurations of lx RTT or HRPD neighboring BS information of PS switching types; it should be understood by those skilled in the art that; following method is only citing, and other methods close or similar to this method all should belong to protection scope of the present invention.

It is to be noted that, it should be understood by those skilled in the art that, if the Rule of judgment shown in conditions of the eNB in the present embodiment and the step 406 in embodiment 4, it is determined that PS optimization switchings can not be carried out, and need to carry out PS non-optimized switchovers, then eNB carries out the corresponding PS non-optimized switchovers step in embodiment 4；

Step 707 represents that, if eNB determines to perform CSFB and optimized PS HO joint operations, eNB initiates to carry out normal PS optimizations switching preparation process, and the step is prior art, and Redundant is not added with herein and is stated；Step 708 is represented, after the completion of above-mentioned normal PS optimizations switching preparation process, the eNB sends the E-UTRAN switching commands for carrying IX CSFB information to the UE, the E-UTRAN switching commands are Mobility from E-UTRAN message, indicate that UE accesses lx RTT and eHRPD network simultaneously.Wherein Include lx CSFB information in Mobility from E-UTRAN information, lx CSFB information includes at least one in correlation lxRTT carrier frequency informations or cell information, and CSFB configured informations；UE is received after this message, is gone to lx RTT CSFB flows and is performed flow to the optimization switching of eHRPD network.

Step 709 is represented, after the CSFB flows for carrying out standard, carries out the IX MO call setup flows of standard, this is prior art, is not added with praising herein and states；

Step 710 is represented, carries out the optimization switching flow from E-UTRAN network to eHRPD network, this is prior art, and Redundant is not added with herein and is stated.

The embodiment of the present invention 8 is illustrated with reference to Fig. 8, the embodiment of the present invention 8 specifically describes CSFB and PS the optimization switching combination control method of another network controls.

Step 801 represents that UE adheres in E-UTRAN and registered by S102 tunnels in lxRTT CS, and UE is also registered in advance in eHRPD network.UE is in E-UTRAN attaching process, and UE is by the UE on supporting SVDO capability reporting to network side.UE SVDO abilities can be reported as UE network capabilities, can also be reported as UE wireless capability.Specifically process is reported referring to embodiment 2 and embodiment 3;

Step 802 represents that UE determines to initiate IX calling procedures, and the IX calling procedures are common CSFB calling procedures；

Step 803 represents that UE sends Extended Service Request (service request of extension) message to MME, and MME sends solicited message to eNB according to UE state, if UE is in idle condition, performs step 804a;If UE is active, step 804b is performed;

Step 804a represents that MME sends the initial UE Context Setup of S 1 and (sets up the initial contexts of S 1）Message is to eNB;

Step 804b represents that MME sends SI UE Context Modification (modification S I initial contexts）Message is to eNB;

Optionally, step 805 is represented, the eNB receives the initial UE Context Setu information of S 1 or SI UE Context Modification information and sends IX RTT measurement solicited messages to UE, the UE receives the solicited message, and triggers 1 X RTT of progress measurements and/or eHRPD measurements； Step 806 is represented, UEs of the eNB based on acquisition SVDO abilities, it is preferred that, it is also based at least one in measurement report, network configuration, S1-AP information and carrying foundation that UE is reported, eNB determines execution CSFB and optimized PS HO joint operation, and the foundation that eNB judges can be：ENB determines the measurement report that terminal supports SVDO abilities and eNB to be reported according to UE according to UE ability informations, optionally, eNB can also set up at least one in situation according to network configuration, S1-AP information and carrying, determine that Pre-registration succeeds and there is qualified eHRPD network.Wherein network configuration can include network for information such as support, the configurations of lx RTT or HRPD neighboring BS information of PS switching types; it should be understood by those skilled in the art that; following method is only citing, and other methods close or similar to this method all should belong to protection scope of the present invention.

It is to be noted that, it should be understood by those skilled in the art that, if the Rule of judgment shown in conditions of the eNB in the present embodiment and the step 406 in embodiment 4, it is determined that PS optimization switchings can not be carried out, and need to carry out PS non-optimized switchovers, then eNB carries out the corresponding PS non-optimized switchovers step in embodiment 4；Step 807 is represented, eNB determines to carry out CSFB and PS optimization switching joint operations according to above-mentioned deterministic process, the eNB sends RRC connection Release message to UE and UE is redirected in IX RTT and eHRPD network, at least one of at least one in IX RTT frequency point information and cell information and the frequency point information also including eHRPD network and cell information can be included in the RRC connection Release message, the above- mentioned information that then UE can include according to the RRC connection Release message is switched over.Optionally, at least one in IX RTT frequency point information and cell information can also be included in the RRC connection Release, then UE is received after this message, and determining that the qualified eHRPD network of periphery presence is optimized according to information such as eHRPD network scanning results is switched to the eHRPD networks.Optionally, the redirection reason for representing CSFB and optimization switching PS HO joint operations can also be included in the RRC connection Release message, such as CSFB to IX and optimization are switched to HRPD networks.Optionally, at least one in IX RTT frequency point information and cell information can also be included in the RRC connection Release, and also include the instruction for indicating that the UE is switched to HRPD networks, while make it that UE is redirected to IX networks, indicate that UE is optimized and be switched to HRPD networks.Optionally, the frequency point information and cell of eHRPD network can also be included in the RRC connection Release At least one in information, and also include the instruction for indicating that the UE carries out CSFB to lx RTT, while make it that UE is redirected to eHRPD, indicate in UE progress CSFB to lx RTT.Optionally, can also include in the RRC connection Release switching CCO (Change cell out) is to IX networks and indicates that the UE is switched to the configured information of HRPD networks, the configured information can also reside in switch in CCO orders.

Alternatively, step 808 is represented, UE carries out context release flow, eNB initiates UE context release request flows, carry out translating for S1 connections to put, it is idle condition to set UE states, the context, which is translated to put, asks flow identical with flow of the prior art.It is preferred that, translating to put in the UE contexts can include in solicited message representing that CSFB and PS optimization translating for joint operation of switching put cause information（Release cause), such as " CSFB and PS HO triggered " (CSFB and PS handover triggers）MME to receive this to translate to put after cause information, it is controlled for the follow-up paging on the UE, such as indicates message when the SGW downlink datas for receiving the UE are sent to MME, MME receives the instruction message and do not notify the eNB initiation pagings process.

Step 809 is represented, carries out the IX MO call setup flows of standard, this is prior art, and Redundant is not added with herein and is stated；

Step 810 is represented, is carried out the optimization switching from E-UTRAN network to eHRPD network and is performed flow, this is prior art, and Redundant is not added with herein and is stated.

It should be noted that it will be appreciated by those skilled in the art that when UE is Idle state or activated state, being changed or obvious optimization in the flow for making adaptability, embodiment 7 can complete the object of the invention with the above-mentioned flow in embodiment 8.It should be noted that, it should be understood by those skilled in the art that, the function that RRC connection Release message in above-described embodiment is realized can also realize that the method for extension is as follows, but is not limited to following method by the extension of Mobility From E-UTRAN message：Extend Mobility From E-UTRAN and carry Handover Type Indication and lx CSFB information, the optimization of activated state optimization switching, non-optimized switchover, or Idle state is carried out for instruction terminal Switching.Wherein lx CSFB information can include only including at least one in lx CSFB carrier frequency or cell information, and CSFB instructions.Also, in the flow of switching is optimized using lx CSFB and PS, Mobility From E-UTRAN can also carry out extension above.

The embodiment of the present invention nine provides a kind of switching device, and described device includes determining module 901 and judge module 902, and the determining module 901 is used to determine that UE supports SVDO;The judge module 902 is used to judge to perform the joint operation of CSFB and PS non-optimized switchovers according to network condition or performs the joint operation that CSFB and PS optimizes switching.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program is upon execution, the step of execution includes above method embodiment, and foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with Jie of store program codes

It is non-that it is limited；Although the embodiment of the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the embodiment of the present invention.

Claims

Claims

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

Determine that UE supports SVDO;

The joint operation for determining to perform the joint operation of CSFB and PS non-optimized switchovers or perform CSFB and PS optimization switchings according to network condition, to cause the UE to proceed data service during CSFB is carried out.

2nd, the method as described in claim 1, it is characterised in that the determination UE supports SVDO to specifically include：Base station obtains the information that the UE supports SVDO by MME, determines that the UE supports SVDO;Or base station is inquired about by being initiated to the UE, obtains the information that the UE supports SVDO, determines that the UE supports SVDO.

3rd, method as claimed in claim 2, it is characterised in that the acquisition UE supports SVDO information to specifically include：The base station obtains the wireless capability or the information of network capabilities on the UE, passes through the information on UE supports SVDO described in the wireless capability of the UE or the acquisition of information of network capabilities.

4th, the method as described in claim 1-3 is any, it is characterized in that, before being judged to perform the joint operation of CSFB and PS non-optimized switchovers or perform the joint operation that CSFB and PS optimizes switching according to network condition, methods described also includes, the UE is measured to network condition, reports the measurement report of acquisition; It is described to judge that the joint operation for performing CSFB and PS optimization switchings is specifically included according to network condition：The measurement report that the SVDO and UE is reported is supported to judge to perform the joint operation of CSFB and PS optimization switchings according to the UE；Or at least one in the UE supports SVDO and UE measurement reports reported and following condition judges joint operation of execution CSFB and PS non-optimized switchovers, the condition includes：The UE does not support PS optimizations switching, the direct UE for carrying out UE are blind to cut and determine that network does not support PS optimization switchings.

5th, the method as described in claim 4, it is characterised in that methods described also includes：It is determined that after UE supports SVDO, the UE carries out pre-registration in target CS domains and target ps domain；If judging to perform the joint operation of CSFB and PS optimization switchings, methods described further comprises：PS optimization switchings are performed to prepare, switching command is sent to the UE, call setup flow and PS the optimization switching flow of carry out standard, the switching command includes switching type and indicated and CSFB information, the switching type indicates to be used to indicate that UE carries out activated state optimization switching or Idle state optimization switching, the CSFB information includes at least one in carrier frequency information or cell information, and CSFB configured informations.

6th, method as claimed in claim 4, it is characterised in that methods described further comprises：It is determined that after UE supports SVDO, the UE carries out pre-registration in target CS domains and target ps domain；If judging to perform the joint operation of CSFB and PS optimization switchings, methods described further comprises: RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target CS domains network, and target ps domain network frequency point information and cell information at least one, cause the UE to be redirected to CS domains network and ps domain network according to the RRC connection Release message；Or

RRC connection Release message, the RRC connection are sent to the UE

Release message includes at least one in the frequency point information and cell information of target CS domains network, the UE is redirected to the target CS domains network and the target ps domain network according to measurement report or network configuration always according to the RRC connection Release message；Or

RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target CS domains network, and indicate that the UE is switched to the instruction of the ps domain network, to cause the UE to be redirected to target CS domains network, and indicate that the UE optimizations are switched to the target ps domain network；Or

RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target ps domain network, and indicate that the UE carries out CSFB to target CS domains network, to cause the UE to be redirected to ps domain network, and indicate that the UE carries out CSFB to target CS domains network；Or

The RRC connection Release message include switching 000 to target CS domain networks and indicate that the UE is switched to the configured information of target PS networks, or switching (^0 orders include switching CCO the configured informations of target PS networks is switched to target CS domain networks and the instruction UE；The UE carries out the call setup flow and PS optimization switching flows of standard.

7th, the method as described in claim 4, it is characterised in that after sending RRC connection Release message to the UE, methods described further comprises：Context release request information is sent to the UE, described information includes representing CSFB and PS The release cause information of optimization switching joint operation, and cause network management entity to receive the release cause information, it is controlled for the follow-up paging on the UE.

8th, method as claimed in claim 4, it is characterised in that methods described further comprises：It is determined that after UE supports SVDO, the UE carries out pre-registration in target CS domains；If judging to perform the joint operation of CSFB and PS non-optimized switchovers, methods described further comprises：RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target CS domains network, and target ps domain network frequency point information and cell information at least one, cause the UE to be redirected to CS domains network and ps domain network according to the RRC connection Release message；Or

RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target CS domains network, and the UE is redirected to the target CS domains network and the target ps domain network according to measurement report or network configuration and the RRC connection Release message；Or

RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target CS domains network, and indicate that the UE is switched to the instruction of the ps domain network, to cause the UE to be redirected to target CS domains network, and indicate that the UE optimizations are switched to the target ps domain network；Or

RRC connection Release message is sent to the UE, the RRC connection Release message includes at least one in the frequency point information and cell information of target ps domain network, and indicate that the UE carries out CSFB to target CS domains network, to cause the UE to be redirected to ps domain network, and indicate that the UE carries out CSFB to target CS domains network；Or

The RRC connection Release message include switching 000 to target CS domain networks and indicate that the UE is switched to the configured information of target PS networks, or switching (bag in ^0 orders Include switching CCO the configured informations of target PS networks is switched to target CS domain networks and the instruction UE；The UE carries out the call setup flow and PS non-optimized switchover flows of standard.

9th, method as claimed in claim 4, it is characterised in that methods described further comprises：It is determined that after UE supports SVDO, the UE carries out pre-registration in target CS domains；The UE scans target ps domain network, it is determined that performing PS non-optimized switchovers, the configured information for carrying out PS non-optimized switchovers is sent to management entity, to cause the UE to receive the RRC connection Release message that base station is sent, indicate the UE access target CS domains network, the RRC connection Release message includes at least one in the frequency point information and cell information in target CS domains, the RRC connection Release message also includes the instruction for indicating that the UE is switched to target ps domain network

The UE carries out the call setup flow and PS non-optimized switchover flows of standard.

10th, method as claimed in claim 4, it is characterised in that methods described further comprises：It is determined that after UE supports SVDO, the UE carries out pre-registration in target CS domains；RRC connection Release message is sent to the UE, UE access target CS domains network is redirected；

The UE scans target ps domain network, obtains the frequency point information or cell information of the target ps domain network, and decision is switched to the target ps domain network；

The UE carries out the call setup flow and PS non-optimized switchover flows of standard.

11st, a kind of switching device, it is characterised in that described device includes determining module and judge module, the determining module is used to determine that UE supports SVDO;

The judge module is used to determine to perform the joint operation of CSFB and PS non-optimized switchovers according to network condition or performs the joint operation that CSFB and PS optimizes switching.