CN101399750B

CN101399750B - Processing method, system and device for mobile terminal position updating

Info

Publication number: CN101399750B
Application number: CN200710151773XA
Authority: CN
Inventors: 郭小龙; 刘岚
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2010-12-08
Anticipated expiration: 2027-09-30
Also published as: WO2009046662A1; CN101399750A

Abstract

The invention discloses a method for updating the location of a mobile terminal; the method comprises the following steps: an MME receives the TAU request sent by a UE and sends the request of release to an SGSN; the SGSN receives the request of release and releases the Iu connection of the UE. The invention also provides a system and a device for updating the location of the mobile terminal. By adopting the embodiment of the invention, under the situation that the signaling stimulation is limited and the UE in PMM_CONNECTED state enters E-UTRA, the TAU process can be started to release the Iu connection of the UE and delete the context of the UE at RAN side; therefore, the state of UE can be converted into IDLE state in 3G network.

Description

A kind of processing method of mobile terminal position updating, system and device

Technical field

The present invention relates to communication technical field, relate in particular to a kind of processing method, system and device of mobile terminal position updating.

Background technology

UMTS (Universal Mobile Telecommunication System, universal mobile telecommunications system) is a kind of third generation cordless communication network technical standard of 3GPP (Third Generation Partnership Project, third generation partner program) tissue definition.The UMTS network is made up of core net and Access Network, core net comprises CS (Circuit Switching, circuit switching) territory and PS (Packet Switching, packet switching) territory, the CS territory provides based on Circuit-switched business (for example speech business), and the PS territory provides the business based on packet switching (for example Internet visit).

Figure 1 shows that the UMTS network structure, core net is made up of PS territory and CS territory, core net PS territory is by SGSN (Serving GPRS Support Node, Serving GPRS Support Node), GGSN (GatewayGPRS Support Node, Gateway GPRS Support Node) and HLR (Home Location Register, attaching position register) forms, core net CS territory is by MSC (Mobile Services switching Center, mobile services switching centre), VLR (Visitor Location Register, VLR Visitor Location Register), GMSC (Gateway Mobile Switching Center, GMSC (gateway mobile switching center)) equipment is formed, Access Network is made up of RNC (Radio Network Controller, radio network controller) and NodeB (base station).Each RNC connects some NodeB, and each SGSN connects some RNC.Being Iub interface between NodeB and the RNC, is the Iu interface between RNC and the SGSN, is Gn or gp interface between SGSN and the GGSN, GGSN and PDN (Packet Data Network, packet data network) being the Gi interface between, is Gr interface between SGSN and the HLR, is the Gc interface between GGSN and the HLR.Wherein, a Gr interface and a Gc interface signaling message transmission do not have user's business datum.Being E interface between MSC and the GMSC, is B interface between MSC and the VLR.The Iu interface is the key interface of Access Network and core net, and the management of Radio Resource and control are isolated in the Access Network by the Iu interface, makes core net that professional providing only is provided.

At present in 3GPP, each the active research LTE of manufacturer (Long Term Evolved, long-term evolving network)/SAE (System Architecture Evolved, the System Architecture Evolution network), the purpose of LTE provides a kind of network cheaply that can reduce time delay, raising user data rate, improved power system capacity and covering, use PS territory business, network is the IP carrying.A kind of LTE/SAE network architecture of prior art as shown in Figure 2.

Followingly LTE/SAE evolution network framework and function thereof are described according to Fig. 2, in the packet-based core networks of evolution:

MME (Mobility Management Entity, Mobility Management Entity) function is to preserve UE (User Equipment, user terminal) MM Context, as user's sign, mobility management states, positional information etc., and to NAS (Non Access Stratum, Non-Access Stratum) signaling is handled, and is responsible for the safety of NAS signaling etc.

SAE GW (SAE gateway) comprises two parts S-GW (Serving Gateway, gateway) and P-GW (PDN Gateway, grouped data network gateway).S-GW and P-GW are two logic entities, are present on the same or different physical entities.User's face context of the last preservation of S-GW UE as IP address and the routing iinformation of UE, is carried out Lawful Interception, grouped data routing function etc.Interface between S-GW and the MME is S11, is responsible for communication between MME, the UPE (User Plane Entity, user entity), and the mobility management information that carries out UE and session control information etc. are alternately.

E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, evolution UMTS grounding wireless access network) is connected with MME, is connected with S-GW by S1-U by S1-MME, is responsible for being connected of chain of command and user's face respectively.MME is connected with 2G/3G SGSN respectively by the S4 interface by S3 interface, S-GW simultaneously, is responsible for mobility chain of command anchor point and the user face anchor point function of UE between 3G and SAE network respectively.

P-GW is responsible for user's face anchor point function that UE is linked into Packet Data Network, communicate by SGi reference point and external packet data net, function with grouping route and forwarding, and responsible policy, billing enhancement function, based on each user's packet filtering function etc.P-GW links to each other with S-GW by the S5 interface, transmits carrying foundation/modification/control informations such as deletion, and the grouped data route etc.PCRF (Policy andCharging Rules Function, policy charging rule function) transmits QoS and charging policy control information etc. by the S7 interface to P-GW.

Different RAT (Radio Access Technology between SAE and Pre-SAE (being the 2G/3G network), wireless access technology) limitation signaling between is an important problem, for example UE moves (as network and the evolvement network of 2G/3G) between different RAT, UE can be according to quartering at the variation that heterogeneous networks causes network registry, and frequent network registration process is a kind of great waste to eating dishes without rice or wine.As shown in Figure 3: RA1 and RA2 will initiate RAU (RoutingArea Update, Routing Area Update) process for the RA (Routing Area, route district) of existing 2G/3G, RA of the every replacing of UE of existing 2G/3G.Certainly UE also has periodic position updating process under the situation of not changing RA, and the current state of informing network UE prevents the UE deviated from network and network is not understood, and produces the situation of continuous paging UE.In the situation described below, all do not consider the situation (but it also exists) of UE periodic location update.

TA1, TA2, TA3 and TA4 are the TA (Tracking Area, tracking area are similar to the RA of 2G/3G) of evolvement network.When a multimode UE moves in these zones, if there is not certain mechanism, can cause frequent network registration process, as when UE enters RA1, need registration, when UE enters TA1, need registration again to the MME/UPE of evolvement network to the SGSN of 2G/3G, when UE moves out TA1 and enters RA1, need again again to the SGSN of 2G/3G registration.The purpose of registration is to make that network can paging be to UE in certain RAT, and still frequent registration can bring a large amount of register command expenses.

Limitation signaling proposes for addressing the above problem between Inter-RAT.The registration of present a kind of minimizing idle (free time) pattern UE under inter-RAT is specially the method for the influence of air interface: UE attach (adhering to) post-registration is to a kind of access network (2G/3G network or evolvement network), when moving to another access network, UE is registered to another access network again, UE is registered to two kinds of connecting systems simultaneously like this, and UE moved at the corresponding registration area (RA or TA) of these two networks and need not initiate any registration process this moment.When UE changes RA or TA, initiate the RAU process.Two kinds of connecting systems (SGSN of 2G/3G or the MME of evolvement network) of UE registration all have the context (context) of UE.Because the SAE network is introduced the notion of " many TA registrations ", promptly a UE can distribute a plurality of TA simultaneously, and the RA or the TA of the registration area that above-mentioned UE distributes may be RA list or TA list.Because UE also can carry out paging simultaneously in a plurality of RA or TA registration in the time of paging in SAE and the corresponding registration area of 2G/3G.Followingly this method is specifically described according to different situations.

(1) UE moves to the situation of 2G/3G network from the SAE network, and as shown in Figure 4, UPE is S-GW among Fig. 4, and regards the MME/S-GW node as an entity.Concrete steps are as follows:

Step S401, UE are attached to SAE, send attach request message to MME.

Step S402, MME are registered to HSS (Home Subscriber Server, ownership place client server).

Step S403, MME obtain context from HSS after, send AuthenticationRequest (authentication request) message, initiate verification process to UE.

Step S404, UE return Authentication Response (authentication response) and give MME.

Step S405, MME/UPE confirm that UE adheres to successfully, distribute S-TMSI (SAE-Temporary Mobile SubscriberIdentity to UE, the SAE Temporary Mobile Subscriber Identity), S-RA (SAE Routing Area, SAE route district, i.e. TA) and default bearing IP information.

Concrete, if authentication is passed through, MME is successful in the UE registration, MME distributes S-TMSI, S-RA and default bearing IP information to UE.If authentication is not passed through, then finish.

Step S406, UE move to the 2G/3G network from the SAE network, change RAT.

Step S407, UE initiate the RAU process, carry the S-TMSI/S-RA that MME distributes, and send to SGSN.

Step S408, SGSN initiate the context that SGSN ContextRequest (context request) message request is obtained UE to the MME of this S-TMSI/S-RA correspondence.

After step S409, MME receive Context Request message, the context of the UE of correspondence is sent to SGSN.This process is commonly referred to Context Retrieval (context searchig) process.

Step S410, SGSN and UE carry out verification process.This process may not exist yet.

Step S411, SGSN are registered to HSS.Perhaps SGSN is not registered to HSS, but MME is registered to MME as HSS.

Step S412, SGSN confirm to accept context, trigger the MME/UPE transferring data.This process also may not trigger the MME transferring data.

Step S413, SGSN upgrade PDP (Packet Data Protocol, packet data protocol) context and confirm with MME.Because at user's face, MME is similar to original GGSN to SGSN.

Step S414, SGSN are with U-TMSI/U-RA (UMTS-Temporary Moblie SubsciberIdentity, i.e. P-TMSI; / UMTS-Routing Area, be RA) and S-TMSI/S-RA (being TA) distributes to UE, and (perhaps described S-RA and U-RA are list, promptly distribute a plurality of S-RA or a plurality of U-RA to give a UE), UE moved between U-RA and S-RA and needn't initiate registration updating message this moment.

Step S415, SGSN and UE carry out RA and upgrade affirmation.

By above step, SGSN has set up related with MME, and promptly SGSN has preserved the address information that MME distributes to S-TMSI/S-RA or the MME of UE; MME also preserves the address information that SGSN distributes to U-TMSI/U-RA or the SGSN of UE.

(2) UE moves to the situation of SAE network from the 2G/3G network, as shown in Figure 5, be specially: UE at first is attached to SGSN, SGSN is registered to HSS, and UE enters SAE afterwards, initiates RAU, MME obtains the context of UE from SGSN, MME is registered to HSS, distributes S-RA/S-TMSI to UE, and UE moved in RA that registers and S-RA and then need not initiate position renewal/registration message this moment.Updating message then will be initiated in zone beyond UE moves to the S-RA/RA of registration.Step 515 may needn't not initiated because SGSN does not change among the figure.

UE is divided into PMM_CONNECTED (connection status), PMM_IDLE (idle condition) and PMM_DETACHED (released state) at the state of NAS, and mean that at the PMM_CONNECTED state UE exists Iu to connect and RRC (Radio Resource Control, unlimited resources control) connects.Have four kinds of state: CELL_DCH, CELL_FACH, CELL_PCH and URA_PCH state under the RRC connection status again, wherein the activity of UE reduces successively.When being in the URA_PCH state as UE, its activity is lower, consumption of network resources is less, only periodically updating device at URA_PCH expires or changes URA (UTRAN Registration Area, the UTRAN registration area) zone (being made up of some Cell) or upstream data or downlink data are arranged just can transfer other state (as CELL_DCH) to.

The conclusion of limitation signaling is that PMM_CONNECTED does not handle as the inactive of limitation signaling at present, PMM_CONNECTED is that the UE of PMM_CONNECTED state enters E-UTRA (Evolved UMTS Terrestrial Radio Access as the implication of inactive, the access technology of evolution) (UE is stationed LTE to registration area, this zone is the registration area of UE, promptly distribute to the TA of UE), should not initiate any renewal.

Because PMM_CONNECTED does not handle as the inactive of limitation signaling, under limitation signaling activation situation, after the UE of PMM_CONNECTED state moves to E-UTRA (UE is stationed LTE), then should initiate to upgrade, after the renewal, UE should be in idle condition at 3G state and SAE state.And, need carry out the Context that certain processing discharges Iu connection and RAN because UE under the PMM_CONNECTED state, connects and the RRC state at the Iu of inner this UE of existence of 3G network.

After the UE of PMM_CONNECTED state enters E-UTRA, need to initiate TAU (Track AreaUpdate, tracking area update), the Iu that SGSN need discharge this UE connects, and UE has just transferred the PMM_IDLE state at the state of 3G like this.UE initiates TAU to MME, under general T AU situation, if there is not context changes, possible MME can be not mutual with SGSN, even MME and SGSN are mutual, SGSN not can be appreciated that yet needs to discharge the Iu interface, because existing SGSN is behind the CancelLocation (canceling position) that receives the HSS transmission, just can discharge possible Iu interface.Therefore, SGSN connects at the Iu that only could discharge this UE when receiving Cancel Location in the prior art scheme; When not receiving CancelLocation, the Iu that can't discharge this UE connects, and can't make the state of UE in 3G network is the IDLE state.

Summary of the invention

The problem to be solved in the present invention provides a kind of processing method, system and device of mobile terminal position updating, is used for after the UE of PMM_CONNECTED state enters E-UTRA, and the Iu that discharges this UE in the 3G network connects and the RNC state.

Embodiments of the invention provide a kind of processing method of mobile terminal position updating, may further comprise the steps:

Mobility Management Entity MME receives the tracking area routing update TAU request that user terminal UE sends, and sends request to Serving GPRS Support Node SGSN and discharges;

Described SGSN receives described request and discharges, and the Iu that discharges described UE connects.

Embodiments of the invention also provide a kind of user terminal, comprising:

Structural unit is used for activating under the situation of limitation signaling at network side, and structure TAU request is carried triggering SGSN in the described TAU request and discharged the Iu indication;

Transmitting element is used for the TAU request of described structural unit structure is sent to MME.

A kind of MME comprises:

Receiving element is used to receive the TAU request that user terminal sends, and sends to processing unit;

Processing unit is used for asking structure to ask to discharge according to the described TAU that receives, and described request is released to existing message and carries the indication that triggering SGSN discharges the Iu connection, or realizes triggering the new information that SGSN release Iu connects;

Transmitting element is used for the described request release of described processing unit structure is sent to SGSN.

A kind of SGSN comprises:

Receiving element is used to receive the request release of MME, and sends to judging unit;

Judging unit is used to judge whether to exist the Iu of UE to connect, and judged result is sent to processing unit;

Processing unit is used to receive the judged result of described judging unit, when described judged result is that the Iu that discharges described UE connects when existing the Iu of UE to connect.

Compared with prior art, embodiments of the invention have the following advantages:

The method that the application of the invention embodiment provides, make after the UE of PMM_CONNECTED state under the limitation signaling activation situation enters E-UTRA, initiate the TAU process, discharge the Iu connection of this UE and the UE context of deletion RAN side, making the state of UE in 3G network is the IDLE state.

Description of drawings

Fig. 1 is a UMTS network structure in the prior art;

Fig. 2 is a LTE/SAE network structure in the prior art;

Fig. 3 is many RAT network structure in the prior art;

Fig. 4 is the process chart that UE moves to the 2G/3G network in the prior art from SAE;

Fig. 5 is the process chart that UE moves to the SAE network in the prior art from 2G/3G;

Fig. 6 is the schematic diagram of processing method of a kind of mobile terminal position updating of the embodiment of the invention one;

Fig. 7 is the schematic diagram of processing method of a kind of mobile terminal position updating of the embodiment of the invention two;

Fig. 8 is the schematic diagram of processing method of a kind of mobile terminal position updating of the embodiment of the invention three;

Fig. 9 is the schematic diagram of processing method of a kind of mobile terminal position updating of the embodiment of the invention four;

Figure 10 is the treatment system figure of a kind of mobile terminal position updating of the embodiment of the invention five.

Embodiment

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

In the embodiments of the invention one, a kind of processing method of mobile terminal position updating, as shown in Figure 6, concrete steps are as follows:

Under step S601, the limitation signaling activation situation, the UE of PMM_CONNECTED state enters E-UTRA.

Described UE is in URA_PCH state, CELL_PCH state, CELL_FACH state or CELL_DCH state.

Step S602, UE trigger the TAU process, send the TAU request message to MME.

After step S603, MME receive this TAU request message, send the request release message to SGSN.

Step S604, SGSN receive and according to this request release message, initiate the Iu connection that the Iu release command message discharges this UE.

After step S605, RNC received the Iu release command message of SGSN transmission, the RAN side context of deletion UE sent Iu to SGSN and discharges response message.

Step S606, SGSN send the release response message to MME after receiving Iu release response message.This moment, SGSN also may not send the release response message.

After step S607, MME receive and discharge response message, send TAU to UE and accept message, carry new S-TMSI and/or TAlist in the message, perhaps do not carry.

If step S608 S-TMSI and/or TA list change, UE sends TAU to MME and finishes message; If S-TMSI and/or TA list do not change, do not carry out this step.

In the foregoing description, send the indication (as increasing new parameter or in the Cause parameter, increasing new cause value etc.) of carrying triggering SGSN release Iu in the TAU request message to MME at UE; The request release message that MME sends to SGSN is the existing message (as Context Request (context request) message) of carrying the indication that triggers SGSN release Iu connection, or other realize triggering the new information that SGSN discharges the Iu connection.The indication of the triggering SGSN release Iu that carries in the indication of the triggering SGSN release Iu that carries in existing message and the TAU request message may be for identical or different, and its effect is and triggers SGSN release Iu.

The foregoing description also can realize that triggering SGSN discharges Iu and connects by revising SGSN, concrete, SGSN checks whether the Iu connection of UE exists after receiving and discharging request message, if the Iu that exists then discharge this UE connects, make that the state of UE is PMM_IDLE (free time) state, UE needn't carry in the TAU request message and trigger the indication that SGSN discharges the Iu connection like this, and MME also needn't carry triggering SGSN and discharge the indication that Iu connects in the request release message.

In the embodiments of the invention two, being in the URA_PCH state with UE is example, and a kind of processing method of mobile terminal position updating does not relate to the replacing of MME and/or S-GW as shown in Figure 7 in this process, and concrete steps are as follows:

Under step S701, the limitation signaling activation situation, the UE of URA_PCH state enters E-UTRA.

Step S702, UE trigger the TAU process, send TAU Request (TAU request) message to eNodeB, carry a cause specific value (or other indications) in this TAU Request message.

Concrete, no matter whether the zone that enters of UE is the registration area (after for example the UE limitation signaling activates of distributing to UE, SGSN and MME distribute a RA and a TAlist to UE respectively, the UE of IDLE state moves in these zones and needn't initiate to upgrade), as long as UE is in the URA_PCH state and enters E-UTRA, after promptly quartering at LTE, will trigger the TAU process.

In the TAU Request message that UE sends, carry special indication, as carry a new parameter or a cause specific value, perhaps in TAU Request message, carry two TMSI, one is S-TMSI, be the TMSI that MME distributes to UE, one is P-TMSI, and promptly SGSN distributes to the TMSI of UE, perhaps adopts other modes.By adopting in the aforesaid way one or more, trigger MME notice SGSN, make SGSN initiate Iu and discharge, be PMM_IDLE with the UE state recording.

After step S703, eNodeB receive TAU Request message,, this TAU Request message is sent to MME according to the S-TMSI Information Selection MME in this TAU Request message.

After step S704, MME receive TAU Request message, send Context Request (context request) message, carry a specific indication (or sending a new display message) in the message to SGSN.

Concrete, after MME receives TAU Request message, needing to initiate signaling message notifies SGSN to trigger release Iu connection, this signaling message is a new demonstration signaling, as " URA_PCH UpdateNotification (URA_PCH update notification) ", perhaps in original message, add new parameter or parameter value, as add the UE initiation TAU that an indication is used to represent the URA_PCH state, perhaps represent by a special cause value.

After step S705, SGSN receive Context Request message, according to the indication of carrying in this Context Request message, initiate Iu Release Command message, the Iu that discharges this UE connects.

After step S706, RNC received Iu Release Command message, the RAN side context of deletion UE sent Iu Release Complete response message to SGSN.

Under the situation of HSPA+ (Evolved High-Speed Packet Access, the High Speed Packet Access of evolution), RNC transfers to Node B, and as RNC, its implementation procedure is consistent with RNC with Node B, does not do being repeated in this description at this.

After step S707, SGSN receive Iu Release Complete message, send ContextResponse (context response) message to MME.

Carry out the authentication process between step S708, UE and MME, MME and the HSS.Look different situations, this process may not exist yet.

Step S709, MME send Context Acknowledge (context response) message to SGSN.

Step S710, MME send TAU Accept (TAU acceptance) message to UE, carry new S-TMSI and/or TA list in the message, perhaps do not carry.

If step S711 S-TMSI and/or TA list change, UE sends TAUComplete (TAU finishes) message to MME.

After the TAU process finished, UE was in the IDLE state of SAE and the IDLE state of 3G.

In the foregoing description, by in original message Context Request/Response (context request/response), carrying parameter or parameter value, trigger SGSN and initiate Iu release, perhaps also can use new message trigger SGSN to initiate Iu discharges, the process that its implementation procedure and the foregoing description are described is similar, does not do being repeated in this description at this.

UE moves to E-UTRA and initiates in the TAU process, may relate to the MME of meeting registered UE and/or the change of S-GW, and the process of describing among its implementation procedure and the embodiment two is slightly different, but the release request message between TAU request message and the MME/SGSN is constant.In the embodiments of the invention three, the MME that is in URA_PCH state and registered UE with UE changes and is example, a kind of method of processing of mobile terminal position updating, and as shown in Figure 8, concrete steps are as follows:

Under step S801, the limitation signaling activation situation, the UE of URA_PCH state enters E-UTRA.

Step S802, UE trigger the TAU process, send TAU Request message to MME, carry a cause specific (cause) value (or other indications) in this TAURequest message.This MME is not the MME of original registered UE.

After step S803, MME receive TAU Request message, send Context Request message, carry a specific indication (or sending a new display message) in the message to SGSN.

After step S804, SGSN receive Context Request message, according to the indication of carrying in this Context Request message, initiate Iu Release Command (Iu release command) message, the Iu that discharges this UE connects.

After step S805, RNC received Iu Release Command message, the RAN side context of deletion UE sent Iu Release Complete (Iu discharges and finishes) response message to SGSN.

After step S806, SGSN receive Iu Release Complete message, send ContextResponse message to MME.

Step S807, MME send the context that Context Request message is obtained UE to former MME.Former MME is the MME of original registered UE.

After step S808, former MME receive Context Request, send ContextResponse message, carry the context of UE in the message to MME.

Step S807 and S808 may not exist yet, and perhaps are present in before the step S803, after promptly MME receives the TAU Request message of UE transmission, obtain the context of UE to former MME.

Carry out the authentication process between step S809, UE and MME, MME and the HSS.Look different situations, this process may not exist yet.

Step S810, MME send Context Acknowledge message to SGSN.

Step S811, MME send Update Location message to HSS.

Consult the Location (position) of the former MME of cancellation in HSS between step S812, HSS and the former MME.

Carry out the process of Insert Subscriber Data between step S813, HSS and the MME, this process may not exist yet.

Step S814, HSS send Update Location Ack (renewal position informing) message to MME.

After step S815, MME receive Update Location Ack message, send TAU Accept message, carry new S-TMSI and/or TA list in the message, also may not carry to UE.

If step S816 S-TMSI and/or TA list change, UE sends TAUComplete message to MME.

After the TAU process that UE initiates finished, UE was in the IDLE state of SAE and the IDLE state of 3G.

Move to E-UTRA at UE and initiate in the TAU process, the change that relates to process that S-GW changes and MME is similar, and promptly realization flow is different, but the principle unanimity, does not do being repeated in this description at this.In the method that top embodiment provides, discharge the Iu connection, may not can trigger step S808 and/or S810 if step S803 uses other message to realize triggering SGSN.In addition, omitted the process of bearer update in this method, promptly change MME and/or S-GW after, need to upgrade beared information, set up the beared information of new MME to S-GW, after the S-GW change, also to upgrade being carried to SGSN.Because of irrelevant, omitted this process with the main idea of the present invention.

Initiate in the TAU process at UE, the change of MME also may change the specific implementation process of embodiment three, wherein MME obtains contextual information to former MME (being the MME of original registered UE), send signaling by former MME to SGSN then and trigger SGSN release Iu connection, in the embodiments of the invention four, a kind of processing method of mobile terminal position updating, as shown in Figure 9, concrete steps are as follows:

Under step S901, the limitation signaling activation situation, the UE of URA_PCH state enters E-UTRA.

Step S902, UE trigger the TAU process, send TAU Request message to MME, carry a cause specific (cause) value (or other indications) in this TAURequest message.

After step S903, MME receive TAU Request message, send the context that ContextRequest message is obtained UE, carry a specific indication (or sending a new display message) in the message to former MME.

Step S904, former MME receive Context Request message and transmit (because former MME record has the address information of SGSN) to SGSN.

After step S905, SGSN receive Context Request message,, initiate the Iu connection that Iu Release Command message discharges this UE according to the indication of carrying in this Context Request message.

After step S906, RNC received Iu Release Command message, the RAN side context of deletion UE sent Iu Release Complete response message to SGSN.

After step S907, SGSN receive Iu Release Complete message, send Context Response message to former MME.

Step S908, former MME receive Iu Release Complete message and transmit to MME.

Step S807～S815 implementation procedure is similar among following steps and the embodiment three, does not do being repeated in this description at this.After the TAU process that UE initiates finished, UE was in the IDLE state of SAE and the IDLE state of 3G.Certainly, above-mentioned Context Request also can use other signaling message to trigger SGSN to discharge Iu and connect.

The foregoing description is discharging to carry in the request message at RAU request message and MME with UE and is triggering SGSN and discharge Iu and be connected to example, has described a kind of method of mobile terminal position updating among the present invention.Except said method, can also trigger SGSN by the method for revising SGSN and discharge Iu and connect, concrete, by revising SGSN, check that the Iu that whether has UE connects after making SGSN receive to discharge request message, connect if exist then discharge Iu.UE can carry in the TAU request message and trigger SGSN and discharge the indication that Iu connects like this, and MME also needn't carry indication and trigger SGSN and discharge Iu and connected in Context Request.

The method that the application of the invention embodiment provides makes after UE enters E-UTRA under the limitation signaling activation situation, initiates the TAU process, discharges the Iu connection of this UE and the UE context of deletion RAN side, makes the state of UE in 3G network transfer the IDLE state to.

More than be that example has been introduced and initiated to upgrade and the Iu interface of releasing network side and the context of RAN side UE UE under this state enters the E-UTRA zone after limitation signaling activates after with the URA_PCH state.If CELL_PCH or CELL_FACH or CELL_DCH are as the active state of limitation signaling, also the situation that may similarly the present invention is directed to URA_PCH is handled, in this case, as long as the URA_PCH in the description of the invention is changed into CELL_PCH or CELL_FACH or CELL_DCH.Concrete grammar repeats no more.

The method that the application of the invention embodiment provides after the UE under the realization PMM_CONNECTED state enters E-UTRA, is initiated the TAU process, and is discharged the Iu connection of this UE and the UE context of RAN side, makes UE be in the IDLE state of SAE and 3G.

In the embodiments of the invention five, a kind of treatment system of mobile terminal position updating as shown in figure 10, comprises at least: user terminal 10, MME20, SGSN30 and RNC40.

User terminal 10 is used under limitation signaling activation situation, initiates the TAU process, at the TAU request message that sends to MME20.Described user terminal 10 is in the PMM_CONNECTED state.MME20 is used to receive the TAU request message that user terminal 10 sends, and sends the request release message to SGSN30.SGSN30 is used to receive and according to the request release message that MME20 sends, the Iu that discharges user terminal 10 connects.

This system also comprises: RNC40, be used to receive the Iu release command message that SGSN30 sends, and the RAN side context of deletion user terminal 10 sends Iu to SGSN30 and discharges response message.

User terminal 10 further comprises: structural unit 11, be used for activating under the situation of limitation signaling at network side, and structure TAU request is carried triggering SGSN in this TAU request and is discharged the Iu indication.Transmitting element 12 is used for the TAU request of structural unit 11 structures is sent to MME20.

MME20 further comprises: receiving element 21 is used to receive the TAU request that user terminal 10 sends, and sends to processing unit 22.Processing unit 22 is used for asking structure to ask to discharge according to the TAU that receives, and this request is released to existing message and carries the indication that triggering SGSN discharges the Iu connection, or realizes triggering the new information that SGSN release Iu connects.Transmitting element 23 is used for the request release of processing unit 22 structures is sent to SGSN30.

SGSN30 further comprises: receiving element 31 is used to receive the request release of MME20, and sends to judging unit 32.Judging unit 32 is used to judge whether to exist the Iu of UE to connect, and judged result is sent to processing unit 33.Processing unit 33 is used to receive the judged result of judging unit 32, when judged result is that the Iu that discharges user terminal 10 connects when existing the Iu of user terminal 10 to connect.

In the embodiments of the invention six, a kind of user terminal is used under limitation signaling activation situation, initiates the TAU process, and at the TAU request message that sends to MME, described user terminal is in the PMM_CONNECTED state.Comprise: structural unit, be used for activating under the situation of limitation signaling at network side, structure TAU request is carried triggering SGSN in this TAU request and is discharged the Iu indication.Transmitting element is used for the TAU request of structural unit structure is sent to MME.Its structure and identical with user terminal shown in Figure 10 in the relation of other equipment and the foregoing description five in network is not repeated in this description at this.

In the embodiments of the invention seven, a kind of MME is used to receive the TAU request message that user terminal sends, and sends the request release message to SGSN.Comprise: receiving element is used to receive the TAU request that user terminal sends, and sends to processing unit.Processing unit is used for asking structure to ask to discharge according to the TAU that receives, and this request is released to existing message and carries the indication that triggering SGSN discharges the Iu connection, or realizes triggering the new information that SGSN release Iu connects.Transmitting element is used for the request release of processing unit structure is sent to SGSN.Its structure and identical with MME shown in Figure 10 in the relation of other equipment and the foregoing description five in network is not repeated in this description at this.

In the embodiments of the invention eight, a kind of SGSN is used to receive the request release message that MME sends, and judges whether to exist the Iu of user terminal to connect, if exist, the Iu that then discharges user terminal connects.Comprise: receiving element is used to receive the request release of MME20, and sends to judging unit.Judging unit is used to judge whether to exist the Iu of user terminal to connect, and judged result is sent to processing unit.Processing unit is used to receive the judged result of judging unit, when judged result is that the Iu that discharges user terminal connects when existing the Iu of user terminal to connect.Its structure and identical with SGSN shown in Figure 10 in the relation of other equipment and the foregoing description five in network is not repeated in this description at this.

System that the application of the invention embodiment provides and device, make after the UE of PMM_CONNECTED state under the limitation signaling activation situation enters E-UTRA, initiate the TAU process, discharge the Iu connection of this UE and the UE context of deletion RAN side, make the state of UE in 3G network transfer the IDLE state to.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this obtains the machine software product and is stored in the storage medium, comprises that some instructions are used so that the network equipment is carried out the described method of each embodiment of the present invention.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

1. the processing method of a mobile terminal position updating is characterized in that, may further comprise the steps:

Mobility Management Entity MME receives the tracking area routing update TAU request that user terminal UE sends, described TAU request activates under the situation of limitation signaling for network side, the UE of grouping mobile management connection status PMM_CONNECTED enters the inserting technology networks E-UTRA of evolution, and the TAU that sends to described MME asks;

Described MME sends request to Serving GPRS Support Node SGSN and discharges, and discharges so that described SGSN receives described request, and the Iu that discharges described UE connects.

2. the processing method of mobile terminal position updating according to claim 1 is characterized in that, described MME receives the TAU request that UE sends, and sends request to SGSN and also comprises before discharging:

Network side activates under the situation of limitation signaling, and PMM_CONNECTED connection status UE enters the inserting technology networks E-UTRA of evolution, sends the TAU request to described MME.

3. the processing method of mobile terminal position updating according to claim 1 is characterized in that, described SGSN receives described request and discharges, and also comprises after the Iu that discharges described UE connects:

After RNC received the Iu release command of described SGSN transmission, the RAN side context of deletion UE sent Iu to described SGSN and discharges response;

Described SGSN receives described Iu and discharges response, sends context response to described MME;

After described MME receives described context response, send TAU to described UE and accept.

4. as the processing method of mobile terminal position updating as described in the claim 2, it is characterized in that described UE carries in the TAU request that MME sends and triggers described SGSN and discharge the indication that Iu connects, described SGSN discharges the indication that Iu connects and is specially:

A new parameter or a cause specific value; Perhaps

Two Temporary Mobile Subscriber Identity TMSI, one is System Architecture Evolution network SAE Temporary Mobile Subscriber Identity S-TMSI, another is packet TMSI P-TMSI.

5. the processing method of mobile terminal position updating according to claim 1 is characterized in that, described MME carries in the request that described SGSN sends discharges and triggers SGSN and discharge the indication that Iu connects.

6. as the processing method of mobile terminal position updating as described in the claim 5, it is characterized in that described request is released to:

Context request Context Request message is used to carry the indication that triggers SGSN release Iu connection;

Or, for realizing that triggering SGSN discharges the new information that Iu connects.

7. as the processing method of mobile terminal position updating as described in the claim 6, it is characterized in that, described Context Request message is carried and is triggered the mode that SGSN discharges the indication that Iu connects and be specially: utilize in the privately owned expansion Private Extension parameter of Context Request message and carry particular value, or add new parameter or parameter value.

8. as the processing method of mobile terminal position updating as described in the claim 7, it is characterized in that the indication of the triggering SGSN release Iu that carries in the indication that the triggering SGSN that carries in the described TAU request discharges Iu and the described Context Request message is identical or different.

9. the processing method of mobile terminal position updating according to claim 1 is characterized in that, described SGSN receives described request and discharges, and the Iu that discharges described UE connects and is specially:

Described SGSN receives described request and discharges, and whether the Iu that checks described UE connects and exist, if exist then the Iu that discharges described UE connects.

10. a user terminal is characterized in that, comprising:

Structural unit, be used for activating under the situation of limitation signaling at network side, structure TAU request, carry in the described TAU request and trigger SGSN release Iu indication, described TAU request enters the inserting technology networks E-UTRA of evolution for the UE of grouping mobile management connection status PMM_CONNECTED connection status, and the TAU that sends to MME asks;

11. a MME is characterized in that, comprising:

Receiving element, be used to receive the TAU request that user terminal sends, and send to processing unit, described TAU request activates under the situation of limitation signaling for network side, the UE of grouping mobile management connection status PMM_CONNECTED connection status enters the inserting technology networks E-UTRA of evolution, and the TAU that sends to described MME asks;

12. a SGSN is characterized in that, comprising:

Receiving element, be used to receive the request release of MME, and send to judging unit, it is to activate under the situation of limitation signaling at network side that described request discharges, after the UE of grouping mobile management connection status PMM_CONNECTED connection status entered the inserting technology networks E-UTRA of evolution, the request that described MME sends discharged;