CN105407541A

CN105407541A - Business recovery method, device and system of radio communication network

Info

Publication number: CN105407541A
Application number: CN201510728771.7A
Authority: CN
Inventors: 黄英
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2016-03-16
Anticipated expiration: 2029-04-27
Also published as: CN105407541B

Abstract

A business recovery method of a radio communication network comprises the following steps: receiving a radio resource control (RRC) reconstruction request or a cell updating request from user equipment; if RRC reconstruction or cell updating fails, performing an RRC establishment process triggered by a non-access layer of the user equipment; and, after the RRC establishment process is completed, sending an initial user equipment message to a core network equipment. Embodiments of the invention guarantee continuity of user businesses in an active state.

Description

A kind of service restoration method of cordless communication network, Apparatus and system

Technical field

The present invention relates to wireless communication technology, relate to a kind of service restoration method of cordless communication network, Apparatus and system particularly.

Background technology

At mobile network's run duration, there is the situation that community breaks down suddenly sometimes, or unexpected power down, at this moment community cisco unity malfunction, at this moment will the business of subscriber equipment (UE, UserEquipment) under interrupt enable (active) state.Suddenly there occurs fault in community, during cisco unity malfunction, concerning UE, Radio Link Failure (RLF, RadioLinkFailure) can be detected, UE meeting gravity treatment one Ge Xin community, then initiates the link re-establishment process of wireless link.

Realizing in process of the present invention, inventor finds that prior art breaks down in community, after UE selects new community, do not provide the access network equipment of new community how to set up the technical scheme of connection with core net, the continuity of UE business under state of activation cannot be ensured.

Summary of the invention

The embodiment of the present invention provides a kind of service restoration method of cordless communication network, comprising: the radio resource control RRC received from subscriber equipment rebuilds request or cell update message; If this RRC reconstruction failure or cell update failure, carry out triggering RRC process of establishing by the Non-Access Stratum of this subscriber equipment; After above-mentioned RRC process of establishing completes, send initial user equipment message to equipment of the core network.

The embodiment of the present invention separately provides a kind of service restoration method of cordless communication network, comprising: the radio resource control RRC received from subscriber equipment rebuilds request or cell update message; If the contextual information of this subscriber equipment can not be known, then send a notification message to source base station, initiate the handover preparation process of X2 and/or S1 interface with request source base station.

The embodiment of the present invention separately provides a kind of service restoration method of cordless communication network, comprising: the radio resource control RRC received from subscriber equipment rebuilds request or cell update message; Obtain the contextual information of subscriber equipment, send a notification message to equipment of the core network, the connection with described equipment of the core network is set up in request.

The embodiment of the present invention separately provides a kind of business recovery device of cordless communication network, comprising: receiving element, rebuilds request or cell update message for the radio resource control RRC received from subscriber equipment; RRC sets up unit, for RRC reconstruction failure or cell update failure time, carry out described subscriber equipment Non-Access Stratum initiate RRC process of establishing; And processing unit, for after described RRC process of establishing completes, send initial user equipment message to equipment of the core network.

The embodiment of the present invention separately provides a kind of business recovery device of cordless communication network, comprising: receiving element, rebuilds request or cell update message for the radio resource control RRC received from subscriber equipment; Notification unit, for when not knowing the contextual information of this subscriber equipment, sends a notification message to source access network equipment, initiates the handover preparation process of X2 and/or S1 interface with request source access network equipment.

The embodiment of the present invention separately provides a kind of business recovery device of cordless communication network, comprise: receiving element, rebuild request or cell update message for the radio resource control RRC received from subscriber equipment, this RRC rebuilds the contextual information and/or the customer equipment identification that carry above-mentioned subscriber equipment in request or cell update message; Acquiring unit, for obtaining the contextual information of above-mentioned subscriber equipment; And transmitting element, for sending a notification message to equipment of the core network, the connection with this equipment of the core network is set up in request.

The embodiment of the present invention also provides a kind of business recovery of cordless communication network, comprises the business recovery device of equipment of the core network and cordless communication network as above.

The technique scheme that the embodiment of the present invention provides, at community catastrophic failure cisco unity malfunction, when UE gravity treatment is to new community, carry out the connection establishment process of business recovery Shi Xin community access network equipment and equipment of the core network, ensure that the continuity of UE business under state of activation.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the covering schematic diagram of different system cell;

Fig. 2 is the structural representation of LTE system;

Fig. 3 is the structural representation between LTE system and UMTS/GSM system;

Fig. 4 is the business recovery schematic flow sheet in the embodiment of the present invention 1;

Fig. 5 is one of business recovery schematic flow sheet in the embodiment of the present invention 2;

Fig. 6 is the business recovery schematic flow sheet two in the embodiment of the present invention 2;

Fig. 7 is the business recovery schematic flow sheet in the embodiment of the present invention 3;

Fig. 8 is the business recovery schematic flow sheet in the embodiment of the present invention 4;

Fig. 9 is the business recovery schematic flow sheet in the embodiment of the present invention 5;

Figure 10 is the business recovery schematic flow sheet in the embodiment of the present invention 6;

Figure 11 is one of business recovery apparatus structure block diagram in the embodiment of the present invention 7;

Figure 12 is the business recovery apparatus structure block diagram two in the embodiment of the present invention 7;

Figure 13 is one of business recovery apparatus structure block diagram in the embodiment of the present invention 8;

Figure 14 is the business recovery apparatus structure block diagram two in the embodiment of the present invention 8;

Figure 15 is the business recovery apparatus structure block diagram in the embodiment of the present invention 9.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

In mobile communication system, in order to continuity or the solution covering of business, generally can arrange net with covering in different system cell or alien-frequency district.As shown in Figure 1, LTE (LongTermEvolution, Long Term Evolution) community A and UMTS (UniversalMobileTelecommunicationsSystem, Universal Mobile Telecommunications System) community A ' in system covers one piece of region jointly.

The network structure of LTE system as shown in Figure 2, equipment of the core network MME (MobilityManagementEntity, mobile management entity) and evolution base station (evolvedNodeB, eNB) interface between is S1 interface, be S10 interface between different MME, between different e NB is X2 interface, and between eNB and UE is Uu interface, Uu interface carries out communication by RRC (RadioResourceControl, wireless heterogeneous networks) message.

Connection between LTE system and UMTS/GSM as shown in Figure 3, access network equipment RNC/BSC (RadioNetworkController/BaseStationController, radio network controller/base station controller) and equipment of the core network SGSN (ServingGPRSSupportNode, GPRS serving GPRS support node) between be Iu/A interface, between MME and SGSN is S3 interface.

In the following embodiment of the present invention, is broken down in the community provided in LTE system, when UE gravity treatment is to new community, the connection building process of new community access network equipment and equipment of the core network, namely wherein said new community can be the community of LTE system, also can be different system cell, such as, be UMTS community or GSM community.

Embodiment 1

The present embodiment provides a kind of service restoration method of cordless communication network, and as shown in Figure 4, the method comprises:

Step 11, the RRC that new community access network equipment receives from UE rebuilds request or cell update message.

When UE finds RLF, the meeting new community of gravity treatment, the base station to new community sends RRC and rebuilds request.This new community can be LTE community, also can be UMTS community or GSM community.The access network equipment of LTE community is the access network equipment of eNB, UMTS/GSM community is RNC/BSC.When new community is LTE community, the message that UE sends is that RRC rebuilds request message, and when new community is UMTS/GSM community, the message that UE sends is that RRC rebuilds request or cell update message.

Step 12, if the access network equipment of above-mentioned new community does not find the contextual information of this subscriber equipment, then sends corresponding RRC reconstruction failure message or cell update failed message to this subscriber equipment or does not send any message.

Step 13, carries out the RRC process of establishing triggered by NAS (Non-Access-Stratum, Non-Access Stratum).Above-mentioned RRC process of establishing is triggered by the Non-Access Stratum of UE.UE receives failed message or do not receive any message in setting-up time, then trigger the link setup with new community by Non-Access Stratum.Optionally, in above-mentioned RRC process of establishing, can, with an instruction or cause value, be used for representing that this RRC process of establishing is the process that Non-Access Stratum triggers " recovery " link from the RRC information of UE.

Step 14, after described RRC process of establishing completes, sends initial UE message to equipment of the core network.For LTE community, this equipment of the core network is MME, and for UMTS/GSM community, this equipment of the core network is SGSN.

The present embodiment by this initial UE message, establishes the connection of new cell base station and equipment of the core network, thus the continuity of UE business under ensure that state of activation.

Embodiment 2

The present embodiment provides a kind of service restoration method of cordless communication network, and in the present embodiment, the new community of UE gravity treatment is the community of LTE system, then the access network equipment of the present embodiment Zhong Xin community is the eNB of new community, i.e. new eNB.As shown in Figure 5, following flow process is comprised:

Step 101, when UE finds RLF, the meeting new community of gravity treatment, the eNB (new eNB) to new community sends RRC and rebuilds request.

Step 102, new eNB if do not find the context (UEcontext) of UE, then issues RRC reconstruction failure message after receiving above-mentioned RRC reconstruction request.

Step 103, the Non-Access Stratum of UE triggers RRC process of establishing.After NAS triggers, new eNB and UE carries out RRC process of establishing.Optionally, in this RRC process of establishing, can, with an instruction or cause value, be used for representing that this RRC process of establishing is the process that Non-Access Stratum triggers " recovery " link from the RRC information of UE.

Step 104, after RRC has set up, new eNB sends initial UE message to MME, triggers the foundation of S1 interface.Such as, after the new eNB RRC received from UE has set up message, sent initial UE message (InitialUEMessage) to MME, triggered the foundation of S1 interface.This step, by initial UE message, achieves the connection between eNB and MME.

Step 105, the initial context that new eNB receives from MME sets up request.

Step 106, carries out safety certification process between UE and new eNB.In this process, new eNB can obtain the contextual information of UE.This step is option.

Step 107, new eNB and UE carries out reshuffling of RRC.

Step 108, new eNB sends initial context to MME and sets up response.

Above-mentioned steps 105 ~ 108 is identical with existing normal service request flow process.

Optionally, also comprise step 109 after step 108, MME sends the release command of S1 interface to source eNB, and notification source eNB discharges S1 interface.The release of the S1 interface of source eNB has a lot of mode, wherein a kind of mode is only according to S1 interface release command release S1 interface, therefore the embodiment of the present invention is not limited to this, such as, can also pass through triggering timer, carry out the S1 interface between time controlled released MME and source eNB.

As another embodiment of the present invention, if the MME that the eNB of new community connects there occurs change, namely the source MME that the new MME that new eNB connects is connected with source eNB is not an entity, so can by S10 interface pass-along message between two MME, namely send to source MME the message that notification source eNB discharges S1 interface by S10 interface by new MME, then discharge S1 interface by source MME notification source eNB.

In above-described embodiment, new eNB is by initiating an originating service flow process, as initial UE message, has carried out the foundation of S1 interface.

As another embodiment of the present invention, if new community is UMTS/GSM community, new eNB then in the corresponding above-described embodiment of the access network equipment RNC/BSC of UMTS/GSM community, Iu/A interface corresponds to the S1 interface in above-described embodiment, new MME corresponds to SGSN, in this situation, RNC/BSC can send the initial UE message of an Iu/A interface to set up Iu/A interface.As shown in Figure 6, be UMTS community for new community, the service restoration method of the present embodiment comprises the steps:

Step 201, when UE finds RLF, the new community of gravity treatment, the RNC (new RNC) to new community sends RRC and rebuilds request or cell update (cellupdate) message.Optionally, a timer can be started simultaneously.

Step 202, new RNC does not find the context (UEcontext) of this subscriber equipment, issues RRC reconstruction failure or cell update failed message or do not send any message after receiving above-mentioned RRC reconstruction request or cell update message.

Step 203, the Non-Access Stratum (NAS) of UE triggers RRC process of establishing.After UE receives failed message or timer expiry, do not receive any message, then NAS triggers the link setup with new community, and new RNC and UE carries out RRC process of establishing.Optionally, in above-mentioned RRC process of establishing, can, with an instruction or cause value, be used for representing that this RRC process of establishing is the process that Non-Access Stratum triggers " recovery " link from the RRC information of UE.

Step 204, after RRC has set up, new RNC has sent initial UE message to new SGSN, triggers the foundation of Iu interface.Such as, new RNC receives after RRC set up message, and UE initiates initial direct-sending message, carries out service request, and new RNC sends initial UE message (InitialUEMessage) by Iu interface to new SGSN, triggers the foundation of Iu interface.

Step 205, new SGSN sends descending direct-sending message to UE, and new this message of RNC transfer, for the response of service request.

Step 206, new RNC and UE carries out safety certification process.This step is option.

Step 207, new SGSN sends RAB (RAB, RadioAccessBearer) to new RNC and sets up request (RABassignedrequest) message.

Step 208, new RNC and UE carries out the foundation of radio bearer.

Step 209, new RNC newly sends RAB to SGSN and sets up response message.

Above-mentioned steps 204 ~ 209 is identical with existing normal service request flow process.

Optionally, also can comprise after step 209:

Step 210, new SGSN sends the release command of S1 interface by S3 interface to source MME.

Step 211, source MME sends the release command of S1 interface to source eNB.

In the present embodiment, the RNC of new community is by an initial UE message, has carried out the foundation of the Iu interface between new community equipment of the core network SGSN, thus the continuity of UE business under ensure that state of activation.

In gsm system, the Article 1 A interface message that similar BSC is set up by normal business, has carried out the foundation with the A interface of SGSN.

Embodiment 3

The present embodiment provides a kind of service restoration method of cordless communication network, and the present embodiment Zhong Xin community is for LTE community, then the access network equipment of the present embodiment Zhong Xin community is the eNB of new community, i.e. new eNB.As shown in Figure 7, the method comprises:

Step 301, UE finds RLF, the new community of gravity treatment, sends RRC rebuild request to new eNB.

Step 302, new eNB does not find the UEcontext of this UE, then issues RRC reconstruction failure message to this UE after receiving above-mentioned RRC reconstruction request.

Step 303, after UE receives above-mentioned RRC reconstruction failure message, Non-Access Stratum triggers the RRC process of establishing with new eNB.After NAS triggers, new eNB and UE carries out RRC process of establishing.Optionally, in above-mentioned RRC process of establishing, can, with an instruction or cause value, be used for representing that this RRC process of establishing is the process that Non-Access Stratum triggers " recovery " link from the RRC information of UE.

Step 304, new eNB sends a notification message to source eNB, requires that source eNB initiates the handover preparation process of X2 interface and/or S1 interface.New eNB comprises to the method for source eNB notification message: directly sent a notification message to source eNB by X2 interface, or sent a notification message to MME by S1 interface, forward this notification message to source eNB by MME, namely initiate the handover preparation process of X2/S1 interface with direct or indirect notification source base station.

After source eNB receives this notification message, initiate the handover preparation process of X2/S1 interface.That is, after source eNB receives the notification message of the notification message from the X2 interface of new eNB or the S1 interface from MME, carry out the handover preparation process of X2/S1 interface, after handover preparation process, just set up the connection of the eNB of new community and the S1 interface of new MME.Because the handover preparation process of X2/S1 interface is prior art, do not describe in detail at this.Optionally, initiate the handover preparation process of X2/S1 interface at source eNB before, source eNB also first can send response message to the eNB of new community.

In the present embodiment step 304:

If new eNB did not know source eNB running status at that time, and newly had X2 interface between eNB and source eNB, can first be sent a notification message to source eNB by X2 interface.A timer can be started simultaneously.If the X2 interface of new eNB does not receive response message or have received failed message in official hour, so new eNB is sent a notification message to MME by S1 interface again, this notification message is passed to source eNB by S1 interface by MME, requires that source eNB initiates the handover preparation process of X2 and S1 interface.

If the MME that the eNB of new community is connected with source eNB is different, namely new eNB connects new MME, source eNB connects source MME, then new eNB is sent a notification message to new MME by S1 interface, new MME transmits this notification message to source MME by S10 interface, source MME forwards this notification message to source eNB, requires that source eNB initiates the handover preparation process of S1 interface.

If new community is UMTS/GSM community, the access network equipment of Ze Xin community is RNC/BSC, the eNB of corresponding above-mentioned new community, and Iu/A interface corresponds to above-mentioned S1 interface, the corresponding above-mentioned new MME of equipment of the core network SGSN of new community.The access network equipment RNC/BSC of new community can send the notification message of an Iu/A interface by above-mentioned SGSN and source MME to source eNB, and the source eNB of requirement carries out S1 interface handover preparation process.UE detects that the message that RLF Hou Geixin community sends can be that RRC rebuilds or cell update (cellupdate) message.Particularly, RNC/BSC is sent a notification message to SGSN by Iu/A interface, and SGSN sends this notification message by S3 interface to source MME, and source MME forwards this notification message by S1 interface to source base station, and the handover preparation process of S1 interface is initiated in notification source base station.After source eNB receives notification message, carry out the handover preparation process of S1 interface, thus set up the connection of the Iu/A interface of RNC/BSC and the SGSN of new community.Optionally, carry out the handover preparation process of S1 interface at source eNB before, source eNB also first can send response message to the eNB of new community.

In the embodiment of the present invention, the access network equipment of new community utilizes handover preparation process to set up the connection with the S1 interface of new community equipment of the core network MME, or set up the connection with the Iu/A interface of SGSN, thus the continuity of UE business under ensure that state of activation.

Embodiment 4

The present embodiment provides a kind of service restoration method of cordless communication network, and the present embodiment Zhong Xin community is for LTE community, then the access network equipment of the present embodiment Zhong Xin community is the eNB of new community, i.e. new eNB.As shown in Figure 8, the method comprises:

Step 501, UE finds RLF, and gravity treatment, to new community, sends RRC to new eNB and rebuilds request.

Step 502, new eNB receives the request of reconstruction, does not find the UEcontext of this subscriber equipment, sends a notification message to source eNB/MME, requires that source eNB initiates the handover preparation process of X2 and/or S1 interface.In this step, send a notification message to source eNB/MME and comprise: directly sent a notification message to source eNB by X2 interface, or sent a notification message to MME by S1 interface, forward this notification message to source eNB by MME, initiate the handover preparation process of X2/S1 interface with direct or indirect notification source base station.

After source eNB receives notification message, initiate the handover preparation process of X2/S1 interface, also can send response message to the eNB of new community before.

If the eNB (new eNB) of new community does not know eNB (source eNB) running status of cell-of-origin, and there is X2 interface between this eNB and source eNB, then send a notification message preferably by X2 interface as shown in Figure 8, a timer can be started simultaneously.If X2 interface does not receive response message or have received failed message in official hour, so new eNB is sent a notification message to MME by S1 interface, this notification message is passed to source eNB by S1 interface by MME, requires that source eNB initiates the handover preparation process of X2 and S1 interface.

If the MME that the eNB of new community is connected with source eNB is different, namely the source MME that the new MME that new eNB connects is connected with source eNB is not an entity, so new eNB is sent a notification message to new MME by S1 interface, new MME transmits this notification message to source MME by S10 interface, source MME forwards this notification message to source eNB again, requires that source eNB initiates the handover preparation process of S1 interface.

If new community is UMTS/GSM community, the eNB of the new community that the access network equipment RNC/BSC of Ze Xin community is corresponding above-mentioned, Iu/A interface corresponds to above-mentioned S1 interface, so RNC/BSC sends a notification message by Iu/A interface to SGSN, SGSN sends this notification message by S3 interface message to MME, MME forwards this notification message by S1 interface and carries out S1 handover preparation process to source eNB, the source eNB of requirement.Before source eNB and MME carries out the switching of S1 interface, notice response message can be sent by being given to RNC/BSC in SGSN.UE detects that the message that RLF Hou Geixin community sends can be that RRC rebuilds or cell update message.

In the embodiment of the present invention, the connection with new community equipment of the core network MME/SGSN is triggered by sending a notification message to source eNB or source MME in new community access network equipment (eNB or RNC/BSC), ensure that the continuity of UE business under state of activation.

Embodiment 5

The present embodiment provides a kind of service restoration method of cordless communication network, and the present embodiment Zhong Xin community is for LTE community, then the access network equipment of the present embodiment Zhong Xin community is the eNB of new community, i.e. new eNB.As shown in Figure 9, the method comprises:

Step 701, UE finds RLF, the new community of gravity treatment, and the eNB (new eNB) to new community sends RRC and rebuilds request.This RRC rebuilds with UEcontext in request, and new eNB rebuilds the context that can obtain UE request from this RRC.Optionally, RRC rebuilds in request S1 Application of Interface mark (S1APID) also can carrying UE mark and/or source MME and UE, and wherein said UE mark such as can be S-TMSI (SAE Temporary Mobile Station Identity) or IMSI (international mobile subscriber identity).

Step 702, new eNB sends S1 interface message to MME, and request is set up S1 and connected, such as path integration (pathswitch) message or switching notice (HANDOVERNOTIFY) or other S1 interface messages.

Step 703, new eNB receives the S1 interface response message from MME.

Step 704, sends RRC to UE and rebuilds success message.

If do not receive the S1 interface response message from MME in step 703 in setting-up time, then send RRC reconstruction failure message in step 704 to UE.

Optionally, also can comprise after step 704:

Step 705, MME sends the release command of S1 interface to source eNB, and notification source eNB discharges S1 interface.

If the MME that new eNB is connected with source eNB is different, namely new eNB connects new MME, source eNB connects source MME, can by S10 interface pass-along message between two MME, new eNB sends to new MME the message that notification source eNB discharges S1 interface by S1 interface, then this message is transmitted to source MME by S10 interface by new MME, then discharges the connection of S1 interface by source MME notification source eNB.

If new community is UMTS/GSM community, the eNB of the new community that the access network equipment RNC/BSC in Ze Xin community is corresponding above-mentioned, Iu/A interface corresponds to above-mentioned S1 interface, equipment of the core network SGSN so in RNC/BSC Hui Xiangxin community sends the notification message of an Iu/A interface, such as, can be relocationcomplete (migration completes) message or other Iu/A interface messages.SGSN sends S3 interface message to source MME, and the source eNB of requirement carries out the release of S1 interface.UE detects that the message that RLF Hou Geixin community sends can be that RRC rebuilds or cell update message.

The access network equipment eNB/RNC/BSC of the present embodiment Zhong Xin community establishes the connection with MME/SGSN by S1 interface message or Iu/A interface message, ensure that the continuity of UE business under state of activation.

Embodiment 6

The present embodiment provides a kind of service restoration method of cordless communication network, and the present embodiment Zhong Xin community is for LTE community, then the access network equipment of the present embodiment Zhong Xin community is the eNB of new community, i.e. new eNB.As shown in Figure 10, the method comprises:

Step 901, UE finds RLF, and gravity treatment is to new community, and the eNB (new eNB) to new community sends RRC and rebuilds request message, with UE mark in this message, such as S-TMSI, or IMSI.

Step 902 or 902 ', new eNB sends X2 interface message to source eNB or sends S1 interface message to core net MME, request UEcontext, with UE mark in this message, such as S-TMSI or IMSI.

Step 903 or 903 ', after source eNB/MME receives X2 interface message or S1 interface message, according to UE mark, such as S-TMSI or IMSI, passes to new eNB UEcontext.

Step 904, new eNB sends S1 interface message, request is set up S1 interface with MME and is connected, and this S1 interface message can be path switching message (as pathswitch message) or handoff notification message (as HANDOVERNOTIFY message) or other S1 interface messages.

Step 905, new eNB receives the S1 interface response message from MME.

Step 906, new eNB sends RRC to UE and rebuilds successfully.

If new eNB does not receive the S1 interface response message from MME in step 905, then send RRC reconstruction failure message in step 906 to UE.

Optionally, also can comprise after step 906:

Step 907, MME sends the release command of S1 interface to source eNB, and notification source eNB discharges S1 interface.

If the MME that the eNB of new community is connected with source eNB is different, then by S10 interface pass-along message, the connection of S1 interface can be discharged by source MME notification source eNB between two MME.

In step 902:

If the eNB of new community did not know the eNB running status of cell-of-origin at that time, if there is X2 interface, first can send the request message of X2 interface, request source eNB transmitted UEcontext.A timer can be started simultaneously.If X2 interface does not receive response message or have received failed message in official hour, so new eNB sends the request message of S1 interface to MME, requires that MME transmits UEcontext, comprises UE and identify such as S-TMSI in this request message, or IMSI.

If the MME that the eNB of new community is connected with source eNB is different, namely new eNB connects new MME, source eNB connects source MME, can by S10 interface pass-along message between two MME, new MME transmits a request message by S10 interface to source MME, comprise UE mark, such as S-TMSI or IMSI, require that source MME transmits UEcontext; Or source MME forwards this request message to source eNB, require that source eNB transmits UEcontext.

If new community is UMTS/GSM community, the eNB of the new community that the access network equipment RNC/BSC of Ze Xin community is corresponding above-mentioned, Iu/A interface corresponds to above-mentioned S1 interface, so the equipment of the core network SGSN of RNC/BSC Hui Xiangxin community sends the request message of an Iu/A interface, SGSN sends this request message by S3 interface to MME, requires that MME transmits UEcontext; Or after MME receives this request message, then send this request message to eNB, require that eNB sends this UEcontext.

New community is UMTS/GSM community, the corresponding above-mentioned pathswitch message of Iu/A interface message or HANDOVERNOTIFY message or other S1 interface messages, such as relocationcomplete message or other Iu/A interface messages.And UE detects that the message that RLF Hou Geixin community sends can be that RRC rebuilds or cell update message.

The access network equipment of the present embodiment Zhong Xin community establishes the connection with MME/SGSN by S1 interface message or Iu/A interface message, ensure that the continuity of UE business under state of activation.

One of ordinary skill in the art will appreciate that the hardware that all or part of step realized in above-described embodiment method can carry out instruction relevant by program has come, this program can be stored in a computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.

Embodiment 7

The embodiment of the present invention provides a kind of business recovery device 200 of cordless communication network, and as shown in figure 11, this device comprises: receiving element 210, RRC sets up unit 230 and processing unit 240.Wherein, the RRC that receiving element 210 receives from subscriber equipment rebuilds request or cell update message; RRC sets up unit 230 when RRC reconstruction failure or cell update failure, the RRC process of establishing that the Non-Access Stratum carrying out above-mentioned subscriber equipment is initiated; Processing unit 240, after above-mentioned RRC process of establishing completes, sends initial user equipment message to equipment of the core network.

As another embodiment of the present invention, as shown in figure 12, said apparatus 200 also can also comprise: unit 250 set up in context, sets up request for the initial context received from equipment of the core network, and sends context foundation response to above-mentioned equipment of the core network.Optionally, this device also can comprise failure response unit 220, when not carrying the contextual information of this subscriber equipment for rebuilding at this RRC in request or cell update, sends RRC reconstruction failure message or cell update failed message to above-mentioned subscriber equipment.

Embodiment 8

The embodiment of the present invention provides a kind of business recovery device 300 of cordless communication network, and as shown in figure 13, this device comprises: receiving element 310 and transmitting element 340.Wherein, the RRC that receiving element 310 receives from subscriber equipment rebuilds request or cell update message; Transmitting element 340, when not knowing the contextual information of this subscriber equipment, sends a notification message to source access network equipment, initiates the handoff procedure preliminary procedure of X2 and/or S1 interface with request source access network equipment.

As another embodiment of the present invention, as shown in figure 14, said apparatus 300 also can comprise: failure response unit 320 and RRC set up unit 330.Wherein failure response unit 320 is not when knowing the contextual information of this subscriber equipment, sends corresponding RRC reconstruction failure message or cell update failed message to above-mentioned subscriber equipment; RRC sets up the RRC process of establishing that unit 330 carries out the Non-Access Stratum initiation of above-mentioned subscriber equipment.

Further, above-mentioned transmitting element is also for sending a notification message to source access network equipment by X2 interface; When not receiving notice response message or receive failed message in setting-up time, send above-mentioned notification message to source equipment of the core network, forward above-mentioned notification message by source equipment of the core network to described source access network equipment; Or above-mentioned transmitting element, also for sending above-mentioned notification message to source equipment of the core network, forwards above-mentioned notification message by source equipment of the core network to described source access network equipment.

Embodiment 9

The present embodiment provides a kind of business recovery device 400 of cordless communication network, as shown in figure 15, comprising: receiving element 410, acquiring unit 420 and transmitting element 430.

Wherein, the RRC that receiving element 410 receives from subscriber equipment rebuilds request or cell update message, and this RRC rebuilds the contextual information and/or the customer equipment identification that carry this subscriber equipment in request or cell update message; Acquiring unit 420 obtains the contextual information of this subscriber equipment; Transmitting element 430 sends a notification message to equipment of the core network, and the connection with described equipment of the core network is set up in request.

Particularly, when above-mentioned acquiring unit 420 is further used for carrying the contextual information of subscriber equipment in above-mentioned RRC reconstruction request or cell update message, rebuild from above-mentioned RRC the contextual information obtaining subscriber equipment request or cell update message; Or, when not carrying the contextual information of subscriber equipment in above-mentioned RRC reconstruction request or cell update message, send a request message to source access network equipment or source equipment of the core network, the contextual information of request subscriber equipment, carries customer equipment identification in this request message.

More specifically, when not carrying the contextual information of subscriber equipment in above-mentioned RRC reconstruction request or cell update message, above-mentioned acquiring unit 420 is further used for sending described request message to by X2 interface to source access network equipment; When not receiving notice response message or receive failed message in setting-up time, send described request message to described source equipment of the core network.

State on the invention in embodiment, the business recovery device of described cordless communication network can be the eNB in LTE system, also can be the RNC/BSC in UMTS/GSM.

The embodiment of the present invention also provides a kind of business recovery system of cordless communication network, this system can realize the service restoration method of cordless communication network in above-described embodiment 1 ~ 6, and this system comprises business recovery device and the equipment of the core network of the cordless communication network provided in above-described embodiment 7,8 or 9.

Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a service restoration method for cordless communication network, is characterized in that, comprising:

Target access network equipment receives the radio resource control RRC reconstruction request that subscriber equipment sends;

Described target access network equipment sends a notification message to source access network equipment, and described notification message is for triggering the handover preparation process between the access network equipment initiation of described source and described target access network equipment.

2. the method for claim 1, is characterized in that, also comprises:

Described target access network equipment, by described handover preparation process, obtains the context of described subscriber equipment, to ensure described subscriber equipment business continuance in active state.

3. the method for claim 1, is characterized in that, also comprises:

Described target access network equipment sends RRC reconstruction failure message to described subscriber equipment, and described RRC reconstruction failure message is for carrying out the RRC process of establishing triggered by the Non-Access Stratum of described subscriber equipment.

4. method as claimed in claim 3, is characterized in that:

Described RRC process of establishing comprises the cause value of the RRC link release indicated by described subscriber equipment.

5. method according to claim 1 and 2, is characterized in that, described target access network equipment sends a notification message to described source access network equipment, specifically comprises:

Described target access network equipment sends a notification message to described source access network equipment, if do not receive notice response message or receive failed message in setting-up time, send described notification message to source equipment of the core network, forward described notification message by described source equipment of the core network to described source access network equipment; Or

Described target access network equipment sends described notification message to source equipment of the core network, forwards described notification message by described source equipment of the core network to described source access network equipment.

6. a service restoration method for cordless communication network, is characterized in that, comprising:

Subscriber equipment sends radio resource control RRC to target access network equipment and rebuilds request, send a notification message to source access network equipment for described target access network equipment, described notification message is for triggering the handover preparation process between the access network equipment initiation of described source and described target access network equipment.

7. method as claimed in claim 6, is characterized in that, also comprise:

Based on the context of the subscriber equipment that described handover preparation process obtains, described subscriber equipment maintains business continuance in active state.

8. method as claimed in claim 6, is characterized in that, also comprise:

Described subscriber equipment receives the RRC reconstruction failure message that described target access network equipment sends, and described RRC reconstruction failure message is for carrying out the RRC process of establishing triggered by the Non-Access Stratum of described subscriber equipment.

9. method as claimed in claim 8, is characterized in that:

10. a business recovery device for cordless communication network, is characterized in that, comprising:

Receiving element, the radio resource control RRC sent for receiving subscriber equipment rebuilds request; With

Transmitting element, for sending a notification message to source access network equipment, described notification message initiates the handover preparation process with described target access network equipment for triggering described source access network equipment.

11. devices as claimed in claim 10, is characterized in that, also comprise:

Acquiring unit, for by described handover preparation process, obtains the context of described subscriber equipment, to ensure described subscriber equipment business continuance in active state.

12. devices as claimed in claim 10, is characterized in that:

Described transmitting element, also for sending RRC reconstruction failure message to described subscriber equipment, described RRC reconstruction failure message is for carrying out the RRC process of establishing triggered by the Non-Access Stratum of described subscriber equipment.

13. devices as claimed in claim 12, is characterized in that:

14. devices as described in claim 10 or 11, is characterized in that:

If described transmitting element also for not receiving notice response message or receive failed message in setting-up time, sends described notification message to source equipment of the core network, forwards described notification message by described source equipment of the core network to described source access network equipment; Or

Described transmitting element, also for sending described notification message to source equipment of the core network, forwards described notification message by described source equipment of the core network to described source access network equipment.

The business recovery device of 15. 1 kinds of cordless communication networks, is characterized in that, comprising:

Send to target access network equipment the unit that radio resource control RRC rebuilds request for subscriber equipment, the described RRC request of rebuilding is used for described target access network equipment and sends a notification message to source access network equipment, and described notification message is for triggering the handover preparation process between the access network equipment initiation of described source and described target access network equipment.

16. devices as claimed in claim 15, is characterized in that, also comprise:

For the context of subscriber equipment obtained based on described handover preparation process, described subscriber equipment maintains the unit of business continuance in active state.

17. devices as claimed in claim 15, is characterized in that, also comprise:

Receive the unit of the RRC reconstruction failure message that described target access network equipment sends for described subscriber equipment, described RRC reconstruction failure message is for carrying out the RRC process of establishing triggered by the Non-Access Stratum of described subscriber equipment.

18. devices as claimed in claim 17, is characterized in that: