CN101902732A - Method and system for synchronizing EPS (Evolved Packet System) bearer context statuses - Google Patents
Method and system for synchronizing EPS (Evolved Packet System) bearer context statuses Download PDFInfo
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Abstract
The invention discloses a method and a system for synchronizing EPS (Evolved Packet System) bearer context statuses. The method comprises the following steps of: informing an EMM (EPS Mobility Management) module to initiate a TAU flow when an ESM (EPS Session Management) module determines that the EPS bearer context of a UE (User Equipment) side is de-activated and the EPS bearer context of a network side is activated; and initiating the TAU flow by the EMM so as to synchronize the EPS bearer context statuses of the UE side and the network side. According to the technical scheme of the invention, the bearer context statuses of the UE side and the network side can be synchronized as soon as possible so as to avoid adverse effects of unnecessary charging generated by sending redundant data on users.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method for synchronous and system of grouping domain system (Evolved Packet System abbreviates EPS as) bearer context statuses of evolution.
Background technology
Consensus standard (Long Term Evolution (Long Time Evolution according to current land radio access web (Evolved UMTS abbreviates E-UTRAN as), abbreviate LTE as) 24.301V920 and V850) understanding, the deexcitation of EPS bearer context (EPS Bearer Context) normally realizes by corresponding signaling process, for example, subscriber equipment (User Equipment, abbreviate UE as) the EPS Bearer Context Deactivation flow process initiated of Requested Bearer Resource Modification flow process and network side, adopt above-mentioned flow process can reach UE side and the network side contextual purpose of releasing bearing simultaneously.But in the practical application, UE side and network equipment can't proper communications in some cases, the situation that this moment may occur local deexcitation (promptly not passing through aforementioned complete signaling process) alternately to delete network side and UE side bearer context simultaneously, only at UE side or network side deleting bearing context.
According to understanding to agreement, for the local deexcitation that network side takes place: if current be connected state, Mobility Management Entity (Mobile Management Entity, be called for short MME) can discharge the data surface carrying of eating dishes without rice or wine accordingly by message informing enode (E-NodeB), thereby make the UE side also carry out local deexcitation, both sides are able to synchronously; And if local deexcitation takes place Idle state lower network side, then can be when entering connected state, because of setting up Data Radio Bearer (Data Radio Bearer, abbreviating DRB as) Shi Buhui sets up the pairing DRB of the unactivated bearer context of network side, therefore can be with the UE side activating and the unactivated bearer context deexcitation of network side makes both sides be able to synchronously.After the local deexcitation of network side took place, when entering connected state (or) can not cause the unactivated situation of UE side activating and network side to occur under connected state.
In the correlation technique, the local deexcitation majority of UE side also is for itself and the contextual state of network side load synchronously, but following several situation makes an exception:
When (1) UE initiates PDN connection disconnection (disconnect) flow process, receive the PDN DISCONNECT REJECT message that network side returns, if the EPS session management that carries in the refuse information of network side (EPS Session Management, abbreviating ESM as) Cause is not #49 " last PDN disconnection not allowed ", then the UE side will be not by and MME between signaling process, directly with default bearer in this PDN connection and the local deexcitation of dedicated bearer: when network side returns PDN DISCONNECT REJECT message, corresponding bearer context may be in state of activation, and after return messages, also not necessarily can do local deactivating operation; Therefore under this scene UE side and the inconsistent situation of network side load context state might appear;
When (2) UE initiates PDN connection disconnection (disconnect) flow process, after timer T3492 the 5th is overtime, the UE side not by and MME between signaling process, directly with default bearer in this PDN connection and the local deexcitation of dedicated bearer: if network side carries out not receiving in the process PDN disconnect request in whole flow process, then network side is unknowable to the local deexcitation behavior of UE side, will cause the deexcitation and network side still activates the inconsistent situation of this state of this bearer context of UE side this moment;
(3) UE initiates bearing resource and revises (Bearer Resource Modification) flow process, after timer T3481 the 5th is overtime, if the purpose of UE start flow is to discharge the pairing whole resources of this bearer context, then UE not by and MME between signaling process, the corresponding bearer context of local deexcitation: if network side does not receive Bearer Resource Modification Request message in whole process, then network side is unknowable to the local deexcitation behavior of UE side, can cause this moment UE side and network side load context state inconsistent;
Under above-mentioned three kinds of situations, UE side bearer context may occur and be in unactivated state, and the network side load context is in this inconsistent situation of state of activation, based on current protocol description: under the connected state, the UE side do not have corresponding message or signaling process inform the network side load context activate (this context is by deexcitation, thus the UE signaling process that can't on this context, initiate the ESM module carry out this synchronously; The AS layer does not have corresponding message to give network side for the relevant DRB state of UE side active feedback yet; Agreement does not need to initiate the TAU flow process under the scene of designate similar); And if this deexcitation occurs under the Idle state, in the follow-up Service Request message when entering connected state except the L3 message header, there is no the state of activation (TAU flow process not necessarily can initiate, and wherein EPS bearer context status cell be optional cell) of extra cell to inform network side current UE side bearer context;
To sum up, this bearer context is in the un-activation of UE side, and the inconsistent state that activates at network side only carries EPS bearer context status cell at TAU next time, when perhaps the subsequent network side is initiatively operated this bearer context by behind the UE refusal, network side can know that just this bearer context is to be in deactivation status in the UE side, thereby carries out local deexcitation to reach the synchronous of network side and UE side bearer context state of activation.
Carry out local deexcitation synchronously before itself and the UE side bearer context statuses at network side, the context state of UE side and network side load is inconsistent, during this period of time in, the UE side can't send upstream data in this carrying; But network side then can send downlink data, and to during the downlink data that the sent flow and the online duration that produce charge accordingly.
Summary of the invention
At the EPS bearer context statuses of UE side and network side in the correlation technique when inconsistent, network side sends redundant data and produces the problem of unnecessary charging, the invention provides a kind of method for synchronous and system of EPS bearer context statuses, one of to address the above problem at least.
A kind of method for synchronous of EPS bearer context statuses is provided according to an aspect of the present invention.
Method for synchronous according to EPS bearer context statuses of the present invention comprises: the ESM module is determined the EPS bearer context deexcitation of UE side and the EPS bearer context of network side when being in state of activation, and notice EMM module is initiated the TAU flow process; The EMM module is initiated the TAU flow process, with the EPS bearer context statuses of simultaneous user's equipment side and network side.
A kind of synchro system of EPS bearer context statuses is provided according to a further aspect in the invention.
Synchro system according to EPS bearer context statuses of the present invention comprises: UE, be used in the EPS bearer context deexcitation of determining the UE side and the EPS bearer context of network side when being in state of activation, initiate tracking area update TAU flow process, with the EPS bearer context statuses of simultaneous user's equipment side and network side.
By the present invention, may cause under UE side and the inconsistent situation of network side load context state at the local deexcitation EPS of UE side Bearer Context, by triggering EPS Mobility Management (EPS Mobility Management, abbreviate EMM as) module initiation TAU flow process, with the bearer context statuses of synchronous UE side and network side.This treatment mechanism, the synchronous UE side that can be as early as possible and the bearer context statuses of network side avoid sending unnecessary charging that redundant data produces to harmful effect that the user produced.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the method for synchronous of the EPS bearer context statuses of the embodiment of the invention;
Fig. 2 is the flow chart of TAU Signalling exchange according to the preferred embodiment of the invention;
Fig. 3 connects the unaccepted process chart of disconnection process for PDN according to the preferred embodiment of the invention;
Fig. 4 is that PDN connects 5 overtime process charts of timer in the disconnection process according to the preferred embodiment of the invention;
Fig. 5 is according to the preferred embodiment of the invention by 5 overtime process charts of timer in the pairing resource process of Bearer Resource Modification flow process request releasing bearing;
Fig. 6 is the structured flowchart of the synchro system of EPS bearer context statuses according to the preferred embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 1 is the flow chart according to the method for synchronous of the EPS bearer context statuses of the embodiment of the invention.As shown in Figure 1, the method for synchronous of this EPS bearer context statuses comprises:
Step S102:ESM module is determined the EPS bearer context deexcitation of user equipment (UE) side and the EPS bearer context of network side when being in state of activation, and notice EMM module is initiated tracking area update TAU flow process;
Step S104:EMM module is initiated the TAU flow process, with the EPS bearer context statuses of simultaneous user's equipment side and network side.
In the correlation technique, bearer context is in the un-activation of UE side, and the inconsistent state that activates at network side only carries EPS bearer context status cell at TAU next time, when perhaps the subsequent network side is initiatively operated this bearer context by behind the UE refusal, network side can know that just this bearer context is to be in deactivation status in the UE side, thereby carries out local deexcitation to reach the synchronous of network side and UE side bearer context state of activation.The method that adopts the foregoing description to provide, can determine the EPS bearer context deexcitation of user equipment (UE) side and the EPS bearer context of network side when being in state of activation in the ESM module, notify the EMM module to trigger the TAU flow process immediately, the synchronous bearer context statuses of UE side and network side as early as possible avoids sending unnecessary charging that redundant data produces to harmful effect that the user produced.
Preferably, above-mentioned steps S104 may further include following processing:
(1) EMM module structure TAU request message and be sent to network side, wherein, the TAU request message carries EPS bearer context statuses cell;
Wherein, this message is except that comprising that forcing also must to carry EPS Bearer Context status cell the cell act as synchronous EPS bearer context statuses to indicate this time TAU; also should use existing safe context; fill in the security header type and be " integrity protection and encryption "; fill in the message authentication code Message authentication code and the sequence number Sequence number that calculate gained; avoid network to initiate security process once more, accelerate the speed of TAU flow process.
(2) deexcitation still is in the EPS bearer context of state of activation to the network element of network side according to EPS bearer context statuses cell, and wherein, this EPS bearer context is in the deexcitation of UE side.
In preferred implementation process, above-mentioned steps (2) may further include following processing:
(2.1) evolution base station is sent to MME with the TAU request message;
(2.2) MME resolves the TAU request message, send RAB (the E-utran Radio Access Bearer of evolution to enode according to EPS bearer context statuses cell, abbreviate E-RAB as) release order, and send the deleting bearing instruction to gateway;
(2.3) enode connects the specified DRB resource of reprovision instruction release by Radio Resource control (Radio Resource Control abbreviates RRC as);
(2.4) gateway is forwarded to packet data network gateway with the deleting bearing instruction, discharges the corresponding resource of deleting bearing instruction with notice PCRF;
(2.5) packet data network gateway is sent to MME via gateway with the deleting bearing request, discharges corresponding Data Radio Bearer of deleting bearing instruction and the corresponding bearer context of deexcitation deleting bearing instruction with the notice evolution base station;
(2.6) gateway receives the deleting bearing response that comes from MME, and the corresponding resource of deletion releasing bearing instruction.
Describe above-mentioned preferred implementation process in detail below in conjunction with Fig. 2.
Fig. 2 is the flow chart of TAU Signalling exchange according to the preferred embodiment of the invention.As shown in Figure 2, TAU Signalling exchange flow process mainly comprises following processing according to the preferred embodiment of the invention:
Step S202:EMM module receives EMM module ESM module _ TAU_REQ primitive that user side ESM module issues, and triggers it and initiates the EPS Bearer Context state that the TAU flow process is come synchronous UE side and network side; EMM module structure TAU Request message (wherein, this message is except that comprising that forcing also must to carry EPS Bearer Context status cell the cell act as synchronous EPS bearer context statuses to indicate this time TAU, also should use existing safe context, fill in the security header type and be " integrity protection and encryption ", fill in the message authentication code Message authentication code and the sequence number Sequence number that calculate gained, avoid network to initiate security process once more, accelerate the speed of TAU flow process), send to enode (E-NodeB) to initiate the TAU flow process;
Step S204:E-NodeB selects correct MME, and TAU Request message (being above-mentioned TAU request message) is sent to MME;
Step S206:MME resolves TAU Request message, judges that this TAU is synchronous EPS bearer context statuses, so initiate the deexcitation flow process of this bearer context; Send E-RAB to enode and release order (wherein, carry TAU and accept message), and send deleting bearing instruction (Delete Bearer Command) deexcitation UE side deexcitation but bearer context that network side still activates to S-GW;
Enode sends RRC to UE and connects reallocation message, carries TAU in the reprovision and accepts message;
The UE side discharges the DRB of the specified release of enode, returns RRC connection reprovision to enode and finishes message;
The TAU process finishes, and UE side direction enode sends up direct-sending message, carries TAU Complete message in this message, confirms that it has received TAU Accept message;
Step S208: enode returns TAU Complete message to MME.
Step S210:S-GW sends to P-GW with Delete Bearer Command;
Step S212: if used policy and charging control (Policy Charging Control, abbreviate PCC as), P-GW notification strategy and charge execution function (Policy and Charging Enforcement Function then, abbreviate PCEF as) initiate the release that IP-CAN Session Modification flow process is notified the PCRF respective resources, PCRF sends new PCC decision to P-GW;
Step S214:P-GW sends deleting bearing request (Delete Bearer Request) deexcitation to S-GW and should carry;
Step S216:S-GW sends Delete Bearer Request to MME;
Step S218:MME returns deleting bearing response (Delete Bearer Response) to S-GW;
Step S220:S-GW discharges this and carries pairing related resource, and returns the deexcitation that Delete Bearer Response confirms this carrying to P-GW.
Preferably, the EMM module of user equipment side is determined the EPS bearer context deexcitation of UE side and the EPS bearer context of network side is in state of activation under one of following situation:
(1) UE side initiation packet data network PDN connects disconnection process, and receive PDN that network side returns and connect and disconnect refuse information, when PDN connect to disconnect Reason For Denial that refuse information carries is not to be that last PDN connects and disconnects when not being allowed to, and the UE side directly connects corresponding whole EPS bearer context deexcitation with PDN;
(2) the UE side is initiated PDN connection disconnection process, and after first timer the 5th corresponding with this flow process was overtime, the UE side directly connected corresponding whole EPS bearer context deexcitation with PDN;
(3) the UE side is initiated the bearing resource modification process, after second timer the 5th corresponding with this flow process is overtime, when the purpose of initiating the bearing resource modification process is the resource of this carrying correspondence of request release, the UE side directly will be carried corresponding whole EPS bearer context deexcitation.
It should be noted that, removing under other situations of above-mentioned three kinds of situations, also may have the EPS bearer context deexcitation of UE side and the EPS bearer context of network side is in state of activation, technical scheme promptly provided by the invention also should be applicable to other application scenarioss.
Describe respectively under above-mentioned three kinds of situations below in conjunction with Fig. 3, Fig. 4 and Fig. 5, realize the synchronous processing procedure of EPS bearer context statuses of subscriber equipment (UE) side and network side.
Fig. 3 connects the unaccepted process chart of disconnection process for PDN according to the preferred embodiment of the invention.As shown in Figure 3, this flow process mainly comprises following processing:
Step S302:UE side is initiated PDN and is connected disconnection process, sends PDN and connects the request of disconnecting (PDN DISCONNECT REQUEST) afterwards, waits for receiveing the response of network side;
Step S304:UE receives the PDN connection disconnection refuse information (PDN DISCONNECT REJECT) that network side returns;
Step S306: if the ESM module Cause (being Reason For Denial) that carries in the PDN DISCONNECT REJECT message is #49 " last PDN disconnection not allowed " (being that last PDN connection disconnection is not allowed to), then PDN connects the disconnection process failure, and flow process finishes; Otherwise go to step S308;
Step S308:ESM module is with all local deexcitation of all EPS Bearer Context in this PDN connection, and the deleting bearing context-related information;
Step S310:ESM module is initiated the TAU flow process by interlayer primitive EMM module ESM module _ TAU_REQ request EMM module.
Afterwards, the EMM module is initiated the TAU flow process, and the signalling interactive process of TAU flow process can repeat no more referring to Fig. 2 herein.
Fig. 4 is that PDN connects 5 overtime process charts of timer in the disconnection process according to the preferred embodiment of the invention.As shown in Figure 4, this flow process mainly comprises following processing:
Step S402:UE side is initiated PDN and is connected disconnection process, sends after the PDNDISCONNECT REQUEST, waits for receiveing the response of network side;
Step S404: before the timer (timer T3492) corresponding with this PDN connection disconnection process was overtime, UE did not receive receiveing the response of network side;
Step S406: connect disconnection process if above-mentioned timer expiry number of times, is then initiated PDN again less than 5 times; Otherwise, then go to step S408 if timer the 5th is overtime;
Step S408:ESM module is with all local deexcitation of all EPS Bearer Context in this PDN connection, and the deleting bearing context-related information;
Step S410:ESM module is initiated the TAU flow process by interlayer primitive EMM module ESM module _ TAU_REQ request EMM module.
Afterwards, the EMM module is initiated the TAU flow process, and the signalling interactive process of TAU flow process can repeat no more referring to Fig. 2 herein.
Fig. 5 is according to the preferred embodiment of the invention by 5 overtime process charts of timer in the pairing resource process of Bearer Resource Modification flow process request releasing bearing.As shown in Figure 5, this flow process mainly comprises following processing:
Step S502:UE side is initiated bearing resource and is revised (Bearer Resource Modification) flow process, sends after the Bearer resource modification request, waits for receiveing the response of network side;
Step S504: (timer T3481) is overtime for the timer of this bearing resource modification process correspondence, and before T3481 was overtime, UE did not receive the response message of network side;
Step S506: if timer T3481 expired times, are then initiated Bearer Resource Modification flow process again less than 5 times; Otherwise, then go to step S508 if timer T3481 the 5th is overtime;
Step S508: judge that whether this Bearer Resource Modification flow process is in order to ask to discharge the relevant resource of this carrying: if not, then flow process failure, flow process finishes; Otherwise, go to step S510;
Step S510:ESM module should be carried local deexcitation, and the relevant information of deleting this bearer context;
Step S512:ESM module is initiated the TAU flow process by interlayer primitive EMM module ESM module _ TAU_REQ request EMM module;
Afterwards, the EMM module is initiated the TAU flow process, and the signalling interactive process of TAU flow process can repeat no more referring to Fig. 2 herein.
The present invention also provides a kind of synchro system of EPS bearer context statuses, and this synchro system mainly comprises: subscriber equipment (UE) 60.
Subscriber equipment 60 is used in the EPS bearer context deexcitation of determining the user equipment (UE) side and the EPS bearer context of network side when being in state of activation, initiates the TAU flow process, with the EPS bearer context statuses of simultaneous user's equipment side and network side.
In preferred implementation process, the ESM module of UE side is determined the EPS bearer context deexcitation of user equipment (UE) side and the described EPS bearer context of network side when being in state of activation, and notice EMM module is initiated tracking area update TAU flow process; This EMM module is initiated described TAU flow process, with the EPS bearer context statuses of synchronous described user equipment side and network side.
The system that adopts the foregoing description to provide, determine the EPS bearer context deexcitation of user equipment (UE) side and the EPS bearer context of network side when being in state of activation in the ESM module, notify the EMM module to trigger the TAU flow process immediately, can be as early as possible the bearer context statuses of UE side and network side synchronously, avoid sending unnecessary charging that redundant data produces to harmful effect that the user produced.
Preferably, subscriber equipment 60 can also be used to construct the TAU request message and be sent to network side, and wherein, the TAU request message carries EPS bearer context statuses cell; System can also comprise: the network element of network side, be used for the EPS bearer context that according to EPS bearer context statuses cell deexcitation still is in state of activation, and wherein, this EPS bearer context is in the deexcitation of UE side.
In preferred implementation process, the EMM module of user equipment side is initiated the TAU flow process, carry EPS bearer context status cell in the TAU request message of initiating, this cell is illustrated in which the EPS bearer context deexcitation of UE side, and which also is in state of activation.Network side is according to the content of EPS bearer context status cell indication, and deexcitation still is in the EPS bearer context of state of activation, and wherein, this EPS bearer context is in the deexcitation of UE side.By above-mentioned processing, the state of EPS bearer context between UE side and network side synchronously.
In preferred implementation process, the TAU request message can also carry following information one of at least: safe context information, EPS updating type information.
Wherein, use existing safe context, fill in the security header type and be " integrity protection and encryption ", fill in the message authentication code Message authentication code and the sequence number Sequence number that calculate gained, avoid network to initiate security process once more, can accelerate the speed of TAU flow process; Can equally be provided with initiating TAU under other situations " Active Flag "; Carrying EPS Bearer Context Status cell is synchronous EPS Bearer Context state to indicate this TAU, to reduce in the TAU process Signalling exchange between each network element of network side as far as possible.
Preferably, as shown in Figure 6, the network element of network side may further include: evolution base station 70 is used for the TAU request message is sent to MME; MME 72, are used to resolve the TAU request message, and send the deleting bearing instruction according to EPS bearer context statuses cell to gateway; Gateway 74 is used for the deleting bearing instruction is forwarded to packet data network gateway, discharges the corresponding resource of deleting bearing instruction with notice PCRF, receives the deleting bearing response that comes from MME, and discharges the corresponding resource of deleting bearing instruction; Packet data network gateway 76 is used for via gateway the deleting bearing request being sent to MME, discharges corresponding Data Radio Bearer of deleting bearing instruction and the corresponding bearer context of deexcitation deleting bearing instruction with the notice evolution base station.
The TAU Signalling exchange flow process of each network element specifically can repeat no more referring to Fig. 2 herein in above-mentioned UE side and the network side.
Preferably, subscriber equipment is determined the EPS bearer context deexcitation of UE side and the EPS bearer context of network side is in state of activation under one of following situation:
(1) UE side initiation packet data network PDN connects disconnection process, and receive PDN that network side returns and connect and disconnect refuse information, when PDN connect to disconnect Reason For Denial that refuse information carries is not to be that the last PDN connects and disconnects when not being allowed to, and the UE side directly connects corresponding whole EPS bearer context deexcitation with PDN;
(2) the UE side is initiated PDN connection disconnection process, and after first timer the 5th corresponding with this flow process was overtime, the UE side directly connected corresponding whole EPS bearer context deexcitation with PDN;
(3) the UE side is initiated the bearing resource modification process, after second timer the 5th corresponding with this flow process is overtime, when the purpose of initiating the bearing resource modification process is the resource of this carrying correspondence of request release, the UE side directly will be carried corresponding whole EPS bearer context deexcitation.
It should be noted that, removing under other situations of above-mentioned three kinds of situations, also may have the EPS bearer context deexcitation of UE side and the EPS bearer context of network side is in state of activation, technical scheme promptly provided by the invention also should be applicable to other application scenarioss.
Under above-mentioned three kinds of situations, realize that the synchronous processing procedure of EPS bearer context statuses of subscriber equipment (UE) side and network side specifically can repeat no more referring to Fig. 3 to Fig. 5 herein.
It should be noted that the synchronization scenario of EPS bearer context statuses provided by the invention, not only go for the LTE standard,, be suitable for too for other 3G standards.
In sum, by the foregoing description provided by the invention, may cause under UE side and the inconsistent situation of net side bearer context statuses at the local deexcitation EPS of UE side bearer context, initiate the TAU flow process by triggering the EMM module, with the bearer context statuses of synchronous UE side and net side.Adopt this treatment mechanism, can be as soon as possible the bearer context statuses of UE side and net side synchronously, avoid sending unnecessary charging that redundant data produces to the harmful effect that the user produced, effectively improve user experience.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for synchronous of the grouping domain system EPS bearer context statuses of an evolution is characterized in that, comprising:
EPS session management ESM module is determined the EPS bearer context deexcitation of user equipment (UE) side and the described EPS bearer context of network side when being in state of activation, and notice EPS Mobility Management EMM module is initiated tracking area update TAU flow process;
Described EMM module is initiated described TAU flow process, with the EPS bearer context statuses of synchronous described user equipment side and network side.
2. method according to claim 1 is characterized in that, described EMM module is initiated described TAU flow process, comprises with the EPS bearer context statuses of synchronous described user equipment side and network side:
Described EMM module structure TAU request message also is sent to described network side, and wherein, described TAU request message carries EPS bearer context statuses cell;
Deexcitation still is in the EPS bearer context of state of activation to the network element of described network side according to described EPS bearer context statuses cell, and wherein, this EPS bearer context is in the deexcitation of described UE side.
3. method according to claim 2 is characterized in that, the network element of the described network side EPS bearer context that deexcitation still is in state of activation according to described EPS bearer context statuses cell comprises:
Evolution base station is sent to Mobility Management Entity MME with described TAU request message;
Described MME resolves described TAU request message, and releases order to the RAB that enode sends evolution according to described EPS bearer context statuses cell, and sends the deleting bearing instruction to gateway;
Described evolution base station connects the reprovision instruction by radio resource control RRC and discharges specified Data Radio Bearer resource;
Described gateway is forwarded to packet data network gateway with described deleting bearing instruction, discharges the corresponding resource of described deleting bearing instruction with notification strategy and charging rule functions PCRF entity;
Described packet data network gateway is sent to described MME via described gateway with the deleting bearing request, discharges corresponding Data Radio Bearer of described deleting bearing instruction and the corresponding bearer context of the described deleting bearing instruction of deexcitation to notify described evolution base station;
Described gateway receives the deleting bearing response that comes from described MME, and deletes the corresponding resource of described releasing bearing instruction.
4. according to each described method in the claim 1 to 3, it is characterized in that described ESM module is determined the EPS bearer context deexcitation of described UE side and the described EPS bearer context of described network side is in state of activation under one of following situation:
Described UE side initiation packet data network PDN connects disconnection process, and receive PDN that described network side returns and connect and disconnect refuse information, to disconnect Reason For Denial that refuse information carries be not to be that last PDN connects and disconnects when not being allowed to when described PDN connects, and described UE side directly connects corresponding whole EPS bearer context deexcitation with described PDN;
Described UE side is initiated PDN and is connected disconnection process, and after first timer the 5th corresponding with this flow process was overtime, described UE side directly connected corresponding whole EPS bearer context deexcitation with described PDN;
Described UE side is initiated the bearing resource modification process, after second timer the 5th corresponding with this flow process is overtime, when the purpose of initiating described bearing resource modification process is the resource of this carrying correspondence of request release, described UE side directly will be carried corresponding whole EPS bearer context deexcitation.
5. the synchro system of the grouping domain system EPS bearer context statuses of an evolution is characterized in that, comprising:
User equipment (UE), be used in the EPS bearer context deexcitation of determining the UE side and the EPS bearer context of network side when being in state of activation, initiate described tracking area update TAU flow process, with the EPS bearer context statuses of synchronous described user equipment side and network side.
6. system according to claim 5 is characterized in that, comprising:
Described UE also is used to construct the TAU request message and is sent to described network side, and wherein, described TAU request message carries EPS bearer context statuses cell;
Described system also comprises: the network element of described network side, be used for the EPS bearer context that according to described EPS bearer context statuses cell deexcitation still is in state of activation, and wherein, this EPS bearer context is in the deexcitation of described UE side.
7. system according to claim 6 is characterized in that, the network element of described network side comprises:
Evolution base station is used for described TAU request message is sent to Mobility Management Entity MME, connects the reprovision instruction by radio resource control RRC and discharges specified Data Radio Bearer resource;
Described MME is used to resolve described TAU request message, and releases order to the RAB E-RAB that enode sends evolution according to described EPS bearer context statuses cell, and sends the deleting bearing instruction to gateway;
Described gateway, be used for described deleting bearing instruction is forwarded to packet data network gateway, discharge the corresponding resource of described deleting bearing instruction with notification strategy and charging rule functions PCRF entity, reception comes from the deleting bearing response of described MME, and discharges the corresponding resource of described deleting bearing instruction;
Described packet data network gateway, be used for the deleting bearing request being sent to described MME, discharge corresponding Data Radio Bearer of described deleting bearing instruction and the corresponding bearer context of the described deleting bearing instruction of deexcitation to notify described evolution base station via described gateway.
8. according to each described system in the claim 5 to 7, it is characterized in that described UE determines the EPS bearer context deexcitation of described UE side and the described EPS bearer context of described network side is in state of activation under one of following situation:
Described UE side initiation packet data network PDN connects disconnection process, and receive PDN that described network side returns and connect and disconnect refuse information, to disconnect Reason For Denial that refuse information carries be not to be that the last PDN connects and disconnects when not being allowed to when described PDN connects, and described UE side directly connects corresponding whole EPS bearer context deexcitation with described PDN;
Described UE side is initiated PDN and is connected disconnection process, and after first timer the 5th corresponding with this flow process was overtime, described UE side directly connected corresponding whole EPS bearer context deexcitation with described PDN;
Described UE side is initiated the bearing resource modification process, after second timer the 5th corresponding with this flow process is overtime, when the purpose of initiating described bearing resource modification process is the resource of this carrying correspondence of request release, described UE side directly will be carried corresponding whole EPS bearer context deexcitation.
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