CN101626564A

CN101626564A - Method, device for synchronizing context and mobile managment network element

Info

Publication number: CN101626564A
Application number: CN200810130555A
Authority: CN
Inventors: 陈中平; 胡伟华; 吴问付
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-07-07
Filing date: 2008-07-07
Publication date: 2010-01-13

Abstract

An embodiment of the invention relates to a method and a device for synchronizing a context and a mobile management network element. The method comprises the following steps of: when a carried context of user equipment using a signing saving ISR mechanism in an idle mode is changed, sending synchronization indicating information and carrying information to a first mobile management network element of a non-present resided network in which the user equipment is registered; and synchronizing the carried context by the first mobile managing network element according to the synchronization indicating information and carrying information, without triggering and calling the user equipment. The embodiment of the invention initiates a carried context synchronization processing flow through a network side so as to initiate the carried context synchronization processing flow through the network side and realize real-time synchronization of the user equipment under the ISR mechanism, thereby obviously reducing the complexity of synchronizing the context by the user equipment.

Description

Context synchronization method, device and mobile management net element

Technical field

The present invention relates to wireless communication field, particularly relate to a kind of context synchronization method, device and mobile management net element.

Background technology

Evolvement network need be realized signaling reduction or signaling limitation function (Idle modeSignaling Reduction under the idle pulley, hereinafter to be referred as the ISR function), for example reduce subscriber equipment (UserEquipment, hereinafter to be referred as UE) at universal mobile telecommunications system (Universal MobileTelecommunication System, hereinafter to be referred as UMTS) middle UMTS Terrestrial radio access network (UMTSTerritorial Radio Access Network) and Long Term Evolution (Long Term Evolution, hereinafter to be referred as LTE) mobile management flow process (Inter 3GPP Access System Mobility inIdle State processing) between the 3GPP connecting system under the idle pulley between the UMTS Terrestrial radio access network (Evolved UMTSTerritorial Radio Access Network is hereinafter to be referred as E-UTRAN) of evolution in the system.At present, the solution of the ISR mechanism between the 3GPP access network is two login mechanisms, be that subscriber equipment is all registered at two different access networks, subscriber equipment when mobile, will not trigger mobile management flow process between the 3GPP connecting system (for example: (inter-system RAU/TAU) flow process is upgraded in the position between system) between registered two access networks of this subscriber equipment under idle pulley like this.

Under the existing ISR mechanism, when subscriber equipment at System Architecture Evolution (System ArchitectureEvolution, hereinafter to be referred as SAE) and two kinds of networks of UMTS between set up ISR mechanism after, if the change of bearer context takes place in current residing network subscriber equipment, subscriber equipment will be provided with the state " ISR needs (ISR synch need) synchronously " of an inside.Afterwards, when user equipment to change current wireless access technology type (hereinafter to be referred as RAT) (for example: subscriber equipment moves to another network's coverage area from current residing network overlay area), subscriber equipment can initiatively be initiated more new technological process (inter-system RAU/TAU) the bearer context information of coming synchronous two networks of position, as with the position more the updating type of new technological process (Update Type) be set to " ISR is (ISR synch) synchronously ".The position is after more new technological process is finished, and subscriber equipment will be removed " ISR needs (ISR synch need) synchronously " state.

The inventor is in realizing process of the present invention, and find that there is following defective at least in prior art: bearer context Synchronous Processing flow process triggers by subscriber equipment.In order to make that subscriber equipment can be in time and trigger bearer context Synchronous Processing flow process accurately, need to guarantee the correctly variation of perception carrying of subscriber equipment, subscriber equipment is provided with the state " ISR needs (ISR synch need) synchronously " of an inside then, and when changing current RAT type, subscriber equipment is initiatively initiated the more new technological process bearer context information of coming registered two network sides of simultaneous user's equipment of position.Therefore, the prior art by subscriber equipment triggering bearer context Synchronous Processing flow process has obviously increased the complexity that subscriber equipment is handled.

Summary of the invention

The technical problem that the embodiment of the invention solves provides a kind of context synchronization method, device and mobile management net element, in order to initiate and to realize the synchronous of subscriber equipment bearer context information by network side.

For solving the problems of the technologies described above, the embodiment of the invention provides a kind of context synchronization method, comprising:

When the bearer context of the subscriber equipment of signaling reduction under enabling idle pulley (ISR) function changes, send synchronous indication information and beared information to first mobile management net element of the non-current residing network of described user equipment registration;

According to described synchronous indication information and described beared information, described first mobile management net element carries out bearer context simultaneous operation, and when carrying out described bearer context simultaneous operation, does not trigger the described subscriber equipment of paging.

In the context synchronization method that the embodiment of the invention provides, change and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function by bearer context at subscriber equipment, first mobile management net element to the non-current residing network of user equipment registration sends synchronous indication information, indicate first mobile management net element to carry out bearer context simultaneous operation according to the beared information that sends, but when carrying out bearer context simultaneous operation, do not trigger calling user device, promptly initiate the Synchronous Processing flow process of bearer context by network side, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.

For solving the problems of the technologies described above, the embodiment of the invention provides a kind of context synchronizer, comprising:

Detection module is used for detecting described subscriber equipment and whether enabling signaling reduction ISR function under the idle pulley when the bearer context of described subscriber equipment changes;

Processing module has been enabled signaling reduction function under the idle pulley if be used for described subscriber equipment, sends synchronous indication information and beared information to first mobile management net element of the non-current residing network of described user equipment registration; Described synchronous indication information is used to indicate described first mobile management net element according to described beared information, carries out bearer context simultaneous operation, and when carrying out described bearer context simultaneous operation, does not trigger the described subscriber equipment of paging.

In the context synchronizer that the embodiment of the invention provides, when the bearer context of subscriber equipment changes, detect subscriber equipment by detection module and whether enabled signaling reduction under the idle pulley (ISR) function, when subscriber equipment has been enabled ISR, send synchronous indication information and beared information by processing module to first mobile management net element of the non-current residing network of user equipment registration, indicate first mobile management net element to carry out bearer context simultaneous operation according to beared information, but when carrying out bearer context simultaneous operation, do not trigger calling user device, promptly initiate the Synchronous Processing flow process of bearer context by network side, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.

For solving the problems of the technologies described above, the embodiment of the invention provides a kind of mobile management net element, is used for carrying out the mobility of user equipment management in the communication system of enabling signaling reduction under the idle pulley (ISR) function, comprising:

Receiver module is used to receive synchronous indication information and the beared information that network side sends;

The carrying synchronization module is used for carrying out bearer context simultaneous operation according to described synchronous indication information and beared information, and when carrying out described bearer context simultaneous operation, does not trigger the described subscriber equipment of paging.

In the mobile management net element that the embodiment of the invention provides, receive synchronous indication information and the beared information that network side sends by receiver module, and by the carrying synchronization module carry out the bearer context simultaneous operation of subscriber equipment, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.

Description of drawings

Fig. 1 is the context of the invention method for synchronous first embodiment flow chart;

Fig. 2 initiates the context synchronization method signaling diagram for the prior art subscriber equipment;

Fig. 3 is the context of the invention method for synchronous second embodiment signaling diagram;

Fig. 4 is the context of the invention method for synchronous the 3rd an embodiment signaling diagram;

Fig. 5 is the context of the invention method for synchronous the 4th an embodiment signaling diagram;

Fig. 6 is the context of the invention method for synchronous the 5th an embodiment signaling diagram;

Fig. 7 is the context of the invention method for synchronous the 6th an embodiment signaling diagram;

Fig. 8 is the context of the invention synchronizer first example structure figure;

Fig. 9 is the context of the invention synchronizer second example structure figure;

Figure 10 is the context of the invention synchronizer the 3rd example structure figure;

Figure 11 is the mobile management net element first example structure figure of the present invention;

Figure 12 is the mobile management net element second example structure figure of the present invention.

Embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Fig. 1 is the context of the invention method for synchronous first embodiment flow chart.As shown in Figure 1, present embodiment comprises:

When the bearer context of step 11, the network equipment subscriber equipment of signaling reduction (ISR) function under enabling idle pulley changes, send synchronous indication information and beared information to first mobile management net element of the non-current residing network of user equipment registration; This synchronous indication information is used to indicate first mobile management net element to carry out bearer context simultaneous operation according to this beared information, but when carrying out bearer context simultaneous operation, do not trigger calling user device, that is: first mobile management net element carries out the simultaneous operation of bearer context, but first mobile management net element is not mutual with subscriber equipment, even first mobile management net element is not connected (as: first mobile management net element does not trigger calling user device) with the signaling that subscriber equipment is set up wireless side.

Step 12, according to synchronously indication information and described beared information, first mobile management net element carries out bearer context simultaneous operation, and when carrying out described bearer context simultaneous operation, does not trigger the described subscriber equipment of paging.

The bearer context of the subscriber equipment contextual variation of dedicated bearing that the dedicated bearing that can be subscriber equipment changes and causes that changes in the present embodiment, wherein the dedicated bearing of subscriber equipment changes establishment, renewal and the deletion that can comprise dedicated bearing; In addition, the bearer context of the subscriber equipment contextual variation of default bearer that the establishment of the default bearer that also can be subscriber equipment causes that changes.

When present embodiment changes at the bearer context of subscriber equipment, initiate subscriber equipment bearer context synchronous handling process in real time by network side.For subscriber equipment in the two registrations of SAE and two kinds of networks of UMTS and set up the situations of ISR mechanism, if the current resident network of subscriber equipment is the SAE network, the network equipment that present embodiment is initiated the in real time synchronous handling process of subscriber equipment bearer context can be mobile management network element (Mobility Management Entity, hereinafter to be referred as MME) or gateway (ServingGateway, hereinafter to be referred as S-GW), at this moment, the non-current resident network of subscriber equipment is the UMTS network, service universal packet wireless business affair (the General Packet Radio Service of UMTS network, be called for short GPRS) support node (Serving GPRS Support Node, hereinafter to be referred as: SGSN) be first mobile management net element of present embodiment; If the current resident network of subscriber equipment is the UMTS network, the network equipment that present embodiment is initiated the in real time synchronous handling process of subscriber equipment bearer context can be SGSN or gateway (S-GW), at this moment, the non-current resident network of subscriber equipment is the SAE network, and the MME of SAE network is first mobile management net element of present embodiment.

Preserve packet switching evolution (Evolved Packet System is hereinafter to be referred as EPS) bearer context (EPS Bearer Context) owing to delete E, and SGSN preserves packet data protocol (Packet DataProtocol is hereinafter to be referred as PDP) context; Therefore, in carrying out the customer equipment context synchronizing process, need carry out the mapping of EPS bearer context and PDP Context parameter information.

The mapping of EPS bearer context and PDP Context parameter information can be finished by the network equipment of initiating the context Synchronous Processing; For example: at beared information is EPS bearer context parameter information, and when first mobile management net element of the non-current residing network of user equipment registration is SGSN, can EPS bearer context parameter information be mapped as the PDP Context parameter information by MME or S-GW, and send the PDP Context parameter information to SGSN; Perhaps, at beared information is the PDP Context parameter information, and when first mobile management net element of the non-current residing network of user equipment registration is MME, can the PDP Context parameter information be mapped as EPS bearer context parameter information by SGSN or S-GW, and send EPS bearer context parameter information to MME.

In addition, the mapping of EPS bearer context and PDP Context parameter information also can be finished by first mobile management net element of the non-current residing network of user equipment registration; For example: at beared information is EPS bearer context parameter information, and when first mobile management net element of the non-current residing network of user equipment registration is SGSN, can send EPS bearer context parameter information to SGSN by MME or S-GW, and EPS bearer context parameter information is mapped as the PDP Context parameter information by SGSN; Perhaps, at beared information is EPS bearer context parameter information, and first mobile management net element of the non-current residing network of user equipment registration is when deleting E, can send the PDP Context parameter information to deleting E by SGSN or S-GW, and the PDP Context parameter information is mapped as EPS bearer context parameter information by deleting E.

Different with present embodiment is that prior art is to trigger context Synchronous Processing flow process by subscriber equipment.Fig. 2 initiates the context synchronization method signaling diagram for the prior art subscriber equipment.As shown in Figure 2, subscriber equipment has carried out two registrations at SAE and UMTS network, and subscriber equipment is initiated context synchronization method and comprised:

Activation, modification or the deletion flow process of carrying taken place in step 21, subscriber equipment in current resident UMTS network, subscriber equipment (UE) will be provided with the state " ISR synch need " of an inside;

Step 22, subscriber equipment are moved in the SAE network at idle pulley, and subscriber equipment is initiatively initiated the position to MME and upgraded (hereinafter to be referred as TAU) flow process;

Step 23, MME send context request (Context Request) message to SGSN, ask for the ISR ability of the contextual information and the SGSN of subscriber equipment to SGSN;

Step 24, SGSN send context response (Context Response) message, the ISR ability of carrying the contextual information and the SGSN of subscriber equipment in context response information to MME;

Step 25, MME send context to SGSN and confirm (Context Ack) message, and notice SGSN ISR mechanism is set up in context acknowledgement message;

Step 26, MME send to S-GW and upgrade bearing request message;

Step 27, S-GW are to packet data network gateway (Packet Data Network Gateway, hereinafter to be referred as P-GW) send and upgrade bearing request message, in this renewal bearing request message, carry the access technology type (Radio Access Type is hereinafter to be referred as RAT) of subscriber equipment;

Step 28, P-GW and PCRF carry out alternately, to the RAT of PCRF report of user equipment;

Step 29, P-GW reply to S-GW and upgrade bearing response message;

Step 210, S-GW reply to MME and upgrade bearing response message;

Step 211, MME send the position renewal to subscriber equipment and accept message (TAU Accept), and notifying user equipment position renewal (TAU) flow process is finished, and MME continues to keep the ISR function.The position is after more new technological process finishes, and subscriber equipment will be removed " ISR synch need " state.

The inventor is in realizing process of the present invention, and find that the defective of the prior art existence of the Synchronous Processing of passing through subscriber equipment triggering bearer context shown in Figure 2 has at least: subscriber equipment carries out bearer context Synchronous Processing operation complexity height.Prior art is in order to make that subscriber equipment can be in time and trigger bearer context Synchronous Processing flow process exactly, need to guarantee the correctly variation of perception carrying of subscriber equipment, subscriber equipment is provided with the state " ISR needs (ISR synch need) synchronously " of an inside then, and when the current RAT type of user equipment to change (being that subscriber equipment moves to non-resident network from current residing network), subscriber equipment is initiatively initiated the more new technological process bearer context information of coming registered two network sides of simultaneous user's equipment of position.As seen, the prior art by subscriber equipment triggering bearer context Synchronous Processing flow process has obviously increased the complexity that subscriber equipment is handled.In addition, ISR function main purpose is the mobile management flow process of subscriber equipment between different access networks that reduces under the idle pulley.But even but the user enabled ISR function subscriber equipment frequent carry out business, so just must realize that the carrying of two systems is synchronous by mobile management flow process (position is new technological process more), increase the Signalling exchange of handling, thereby weakened the function of ISR.

In addition, the inventor also finds in the prior art in realizing process of the present invention, if MME or SGSN recording user equipment state are under the situation of Idle state, when first mobile management net element (MME or SGSN) when receiving downlink signaling, MME or SGSN can initiatively trigger beep-page message, are used for calling user device.And be different from prior art be, the embodiment of the invention is in order to strengthen the ISR function, network equipment issues synchronous indication information to first mobile management net element, this synchronous indication information is used to indicate first mobile management net element when carrying out the context Synchronous Processing according to beared information, does not trigger calling user device.For example: for the current residing network of subscriber equipment is the situation of SAE network, when SGSN receives the dedicated bearing that carries synchronous indication information element (Bearer Synch) that S-GW sends when handling request message, SGSN carries out the context Synchronous Processing according to the beared information that the request message of indication information element and dedicated bearing processing synchronously comprises, but when SGSN carries out the simultaneous operation of subscriber equipment bearer context according to beared information, do not trigger calling user device according to synchronous indication information.

Present embodiment changes and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the bearer context of subscriber equipment by network equipment, first mobile management net element to the non-current residing network of user equipment registration sends synchronous indication information, indicate first mobile management net element to carry out bearer context simultaneous operation according to the beared information that sends, but when carrying out bearer context simultaneous operation, do not trigger calling user device, promptly initiate the Synchronous Processing flow process of bearer context by network side, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between different access networks under the idle pulley, thereby strengthen the ISR function.

Fig. 3 is the context of the invention method for synchronous second embodiment signaling diagram.In the present embodiment, the current residing network of subscriber equipment is the SAE network, and MME is second mobile management net element of the current residing network of embodiment of the invention subscriber equipment; The non-current residing network of user equipment registration is the UMTS network, and SGSN is first mobile management net element of the non-current residing network of embodiment of the invention subscriber equipment; The dedicated bearing of the subscriber equipment context that causes subscriber equipment that changes changes, and is initiated the context Synchronous Processing flow process of subscriber equipment by network equipment gateway (S-GW).As shown in Figure 3, present embodiment comprises:

Step 31, PCRF initiate IP-CAN session modification/termination (PCRF-Initiated IP-CANSession Modification/Termination) flow process, if user device configuration dynamic PCC strategy, PCRF provides PCC policy information to P-GW, as service quality (Quality of Service is hereinafter to be referred as QoS) strategy.

Step 32, P-GW use PCC policy information (qos policy), send dedicated bearing to S-GW and handle request message; It is dedicated bearing request to create message (CreateDedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (Delete Bearer Request).

Step 33, S-GW send dedicated bearing to MME and handle request message; It is dedicated bearing request to create message (Create Dedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (Delete BearerRequest).

Step 34, MME reply dedicated bearing processing response message to S-GW; This dedicated bearing processing response message is that dedicated bearing is created response message (Create Dedicated Bearer Response), upgraded bearing response message (Update Bearer Response) or deleting bearing response message (DeleteBearer Response).

Step 35, when S-GW receives the dedicated bearing processing response message that MME sends, S-GW detects subscriber equipment and whether has enabled the ISR function according to the context of the subscriber equipment of storage; If S-GW detects subscriber equipment and has enabled the ISR function, S-GW adds carrying synchronous indication information element (Bearer Synch) in dedicated bearing processing request message, and sends the dedicated bearing processing request message that carries the synchronous indication information element of carrying to SGSN; This carries synchronous indication information element and is used for indicating SGSN: handle the beared information that request message comprises and carry out the simultaneous operation of bearer context according to carrying is housed, but do not trigger this subscriber equipment of paging.Wherein, MME is that dedicated bearing is created response message, upgraded bearing response message or deleting bearing response message to the dedicated bearing processing response message of S-GW transmission; Dedicated bearing is created the dedicated bearing information that response message comprises establishment, upgrades the beared information that bearing response message comprises renewal, and the deleting bearing response message comprises the beared information of deletion.

Concrete, receiving dedicated bearing processing response message that MME sends at S-GW is that dedicated bearing is when creating response message, S-GW adds carrying synchronous indication information element (Bearer Synch) in dedicated bearing request to create message, and sending the dedicated bearing request to create message carry the synchronous indication information element of carrying (Bearer Synch) to SGSN, the beared information that comprises in the dedicated bearing request to create message can be the dedicated bearing information of needs establishment.The dedicated bearing information that the needs that comprise in the dedicated bearing request to create message are created can be carried out the information mapping of EPS bearer context parameter and PDP Context parameter by S-GW, promptly by S-GW the EPS bearer context parameter information of subscriber equipment in the SAE network is mapped as the parameter information of the PDP Context in the UMTS network.For example: after carrying out parameter information mapping processing, the beared information that comprises in the dedicated bearing request to create message (PDP Context parameter information) can be: Network Service Access Point Identifier (Network Service Access Point Identifier is hereinafter to be referred as NSAPI), consulting service quality (QoS Negotiated), default NSAPI (Linked NSAPI) etc.In addition, the dedicated bearing information that the needs that comprise in the dedicated bearing request to create message are created also can be the EPS bearer context parameter information in the SAE network, send EPS bearer context parameter information by S-GW to SGSN, and indication SGSN carries out the mapping processing of EPS bearer context parameter information and PDP Context parameter information.For example: the dedicated bearing information (EPS bearer context parameter information) that the needs that comprise in the dedicated bearing request to create message are created can be: bearing identification (Bearer Identity), bearer quality of service (Bearer QoS), default bearer sign (LBI) etc.; At this moment, S-GW is when sending the dedicated bearing information (EPS bearer context parameter information) that needs establishment, the mapping that can indicate SGSN to carry out EPS bearer context parameter information and PDP Context parameter information is handled, and respectively bearing identification (Bearer Identity) is mapped as NSAPI, bearer quality of service (Bearer QoS) is mapped as consulting service quality (QoS Negotiated) and default bearer sign (LBI) is mapped as default NSAPI etc. that is:.

The dedicated bearing processing response message that receives the MME transmission at S-GW is when upgrading bearing response message, S-GW adds carrying synchronous indication information element (Bearer Synch) in upgrading bearing request message, and send the renewal bearing request message carry the synchronous indication information element of carrying to SGSN, upgrade the beared information that the beared information that comprises in the bearing request message can be needs renewal.Upgrade the beared information after beared information that the needs that comprise in the bearing request message upgrade can be the parameter information mapping processing that S-GW carries out EPS bearer context parameter information and PDP Context, as: Network Service Access Point Identifier (NetworkService Access Point Identifier is hereinafter to be referred as NSAPI), consulting service quality (QoSNegotiated) etc.In addition, the beared information that upgrades the needs renewal that comprises in the bearing request message can be and also can be EPS bearer context parameter information, as: bearing identification (Bearer Identity), bearer quality of service (Bearer QoS) etc.; At this moment, S-GW is when sending the beared information (EPS bearer context parameter information) that needs renewal, the mapping that can indicate SGSN to carry out EPS bearer context parameter information and PDP Context parameter information is handled, and respectively bearing identification (Bearer Identity) is mapped as NSAPI, bearer quality of service (Bearer QoS) is mapped as consulting service quality (QoS Negotiated) that is:.

Receive dedicated bearing processing response message that MME sends when being the deleting bearing response message at S-GW, S-GW adds carrying synchronous indication information element (Bearer Synch) in upgrading bearing request message, and send the deleting bearing request message carry the synchronous indication information element of carrying to SGSN, upgrade the beared information that comprises in the bearing request message and can be the beared information that needs are deleted.

The beared information of the needs that comprise in deleting bearing request message deletion can be the beared information after the parameter information mapping processing that S-GW carries out EPS bearer context parameter information and PDP Context, as: NSAPI etc.In addition, the beared information of the needs deletion that comprises in the deleting bearing request message can be and also can be EPS bearer context parameter information, as: bearing identification (Bearer Identity) etc.; At this moment, S-GW is when sending the beared information (EPS bearer context parameter information) that needs renewal, the mapping that can indicate SGSN to carry out EPS bearer context parameter information and PDP Context parameter information is handled, and bearing identification (Bearer Identity) is mapped as NSAPI that is:.

In the present embodiment, step 35 for S-GW when SGSN sends synchronous indication information and beared information, send by the mode of in existing dedicated bearing processing messages, carrying synchronous indication information (carrying synchronous indication information element); In addition, S-GW sends synchronous indication information to SGSN and can also independent message (as: carrying synchronization request message) send, and the mode of carrying beared information in independent message sends, as step 35 ' shown in.

Step 35 ', when S-GW receives the dedicated bearing processing response message that MME sends, S-GW detects subscriber equipment and whether has enabled the ISR function; If S-GW detects subscriber equipment and has enabled the ISR function, S-GW carries beared information and sends to SGSN in carrying synchronization request message (Bearer Synch Request), this carrying synchronization request message that carries beared information is used for indicating SGSN: the beared information that comprises according to dedicated bearing processing request message carries out the simultaneous operation of bearer context, but does not trigger this subscriber equipment of paging.Wherein, MME is that dedicated bearing is created response message, upgraded bearing response message or deleting bearing response message to the dedicated bearing processing response message of S-GW transmission; Dedicated bearing is created the dedicated bearing information that response message comprises that needs are created, and upgrades the beared information that bearing response message comprises that needs upgrade, and the deleting bearing response message comprises the beared information of needs deletion.Accordingly, when S-GW adds the dedicated bearing information that needs establishment in carrying synchronization request message (Bearer Synch Request), the wheel synchronization type (Synch Type) that comprises in the carrying synchronization request message is set to dedicated bearing and creates synchronously, is used to the dedicated bearing information creating respective carrier of indicating SGSN to create as required; When S-GW adds the dedicated bearing information that needs renewal in carrying synchronization request message (Bearer Synch Request), the wheel synchronization type (Synch Type) that comprises in the synchronization request message in carrying is set to that more new bearer is synchronous, and the beared information that is used to indicate SGSN to upgrade is as required revised respective carrier; When S-GW adds the dedicated bearing information that needs deletion in carrying synchronization request message (Bearer Synch Request), it is synchronous that the wheel synchronization type (Synch Type) that comprises in the carrying synchronization request message is set to deleting bearing, is used to the beared information deletion respective carrier of indicating SGSN to delete as required.

Step 36, receive the dedicated bearing that carries synchronous indication information element (Bearer Synch) that S-GW sends when handling request message at SGSN, SGSN carries out the context Synchronous Processing according to the beared information that the request message of indication information element and dedicated bearing processing synchronously comprises, but when synchronously indication information element and beared information carry out the simultaneous operation of subscriber equipment bearer context, do not trigger the operation of calling user device at SGSN.SGSN sends the dedicated bearing processing response message that carries carrying sync response cell to S-GW, this carrying sync response cell user notification S-GW is when receiving the dedicated bearing processing response message that carries carrying sync response cell, S-GW and P-GW do not carry out information interaction, do not need to trigger sending corresponding dedicated bearing processing response message to P-GW (dedicated bearing is created response message, upgraded bearing response message or deleting bearing response message) etc. as: S-GW.

Concrete, the dedicated bearing processing request message that receives the S-GW transmission at SGSN is when carrying the dedicated bearing request to create message of synchronous indication information element (Bearer Synch), the beared information that SGSN creates according to the needs that this dedicated bearing request to create message comprises carries out the context Synchronous Processing, and sends the dedicated bearing establishment response message that carries the sync response cell to S-GW; The dedicated bearing processing request message that receives the S-GW transmission at SGSN is when carrying the renewal bearing request message of synchronous indication information element (Bearer Synch), the beared information that the needs that SGSN comprises according to this renewal bearing request message upgrade carries out the context Synchronous Processing, and sends the renewal load creating response message that carries the sync response cell to S-GW; The dedicated bearing processing request message that receives the S-GW transmission at SGSN is when carrying the deleting bearing request message of synchronous indication information element (Bearer Synch), SGSN carries out the context Synchronous Processing according to the beared information of the needs deletion that this deleting bearing request message comprises, and sends the deleting bearing establishment response message that carries the sync response cell to S-GW.If the beared information that the beared information that the needs that SGSN obtains are created, the beared information that need upgrade maybe need to delete is an EPS bearer context parameter information, it is the PDP Context parameter information that SGSN also needs EPS bearing parameter information mapping, and carries out the Synchronous Processing of bearer context; If the beared information that the needs that SGSN obtains are created is for finishing the PDP Context parameter information that mapping is handled on S-GW, the beared information that SGSN then can create according to the needs that obtain, the beared information that needs upgrade maybe the PDP Context parameter informations such as beared information of needs deletion carry out the context Synchronous Processing of subscriber equipment.

In the present embodiment, step 36 is SGSN when S-GW sends response message, sends by the mode of carrying the sync response cell in existing dedicated bearing processing response message; In addition, SGSN sends response message to S-GW and can also independent message (as: carrying synchronous response message) send, and comprises the sync response type information in independent message, as step 36 ' shown in.

Step 36 ', receive the dedicated bearing that carries synchronous indication information element (Bearer Synch) that S-GW sends when handling request message at SGSN, SGSN carries out the context Synchronous Processing according to the beared information that the request message of indication information element and dedicated bearing processing synchronously comprises, that is: SGSN carries out the simultaneous operation of subscriber equipment bearer context according to synchronous indication information element and beared information, but does not trigger calling user device.SGSN sends the carrying synchronous response message to S-GW, in the carrying synchronous response message, comprise and beared information corresponding synchronous respond style information, in order to notify S-GW when receiving the dedicated bearing processing response message that carries carrying sync response cell, S-GW does not need to carry out information interaction with P-GW, does not need to trigger sending the carrying synchronous response message to P-GW etc. as: S-GW.Concrete, SGSN is in the carrying synchronous response message that S-GW sends, the sync response type can be creates dedicated bearing sync response, more new bearer sync response or deleting bearing sync response, being respectively applied for notice S-GW carrying finishes synchronously, and, notice S-GW is receiving carrying during synchronous response message, and S-GW is not to the wireless access type of P-GW report of user equipment.

Present embodiment changes and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the dedicated bearing context of subscriber equipment by S-GW, the first mobile management net element SGSN to the non-current residing network of user equipment registration sends synchronous indication information, indication SGSN carries out bearer context simultaneous operation according to the beared information that sends, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between SAE network and UMTS network under the idle pulley, thereby strengthen the function of ISR mechanism saving signaling under the subscriber equipment idle condition.

Fig. 4 is the context of the invention method for synchronous the 3rd an embodiment signaling diagram.The difference of a kind of context synchronization method second embodiment of present embodiment and the present invention is that present embodiment is initiated the context Synchronous Processing flow process of subscriber equipment by network equipment MME.As shown in Figure 4, present embodiment comprises:

Step 41, PCRF initiate IP-CAN session modification/termination (PCRF-Initiated IP-CANSession Modification/Termination) flow process, if user device configuration dynamic PCC strategy, PCRF provides PCC policy information to P-GW, as service quality (Quality of Service is hereinafter to be referred as QoS) strategy.

Step 42, P-GW use PCC policy information (qos policy), send dedicated bearing to S-GW and handle request message; It is dedicated bearing request to create message (CreateDedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (Delete Bearer Request).

Step 43, S-GW send dedicated bearing to MME and handle request message; It is dedicated bearing request to create message (Create Dedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (Delete BearerRequest).

Step 44, MME reply dedicated bearing processing response message to S-GW; This dedicated bearing processing response message is that dedicated bearing is created response message (Create Dedicated Bearer Response), upgraded bearing response message (Update Bearer Response) or deleting bearing response message (DeleteBearer Response).

Step 45, at MME during to dedicated bearing processing response message that S-GW sends, MME detects subscriber equipment and whether has enabled the ISR function; If MME detects subscriber equipment and enabled the ISR function, MME adds carrying synchronous indication information element (Bearer Synch) in dedicated bearing processing request message, and sends the dedicated bearing processing request message that carries the synchronous indication information element of carrying to SGSN; This carries synchronous indication information element and is used for indicating SGSN: handle the beared information that request message comprises and carry out the simultaneous operation of bearer context according to carrying is housed, but do not trigger this subscriber equipment of paging.Wherein, MME is that dedicated bearing is created response message, upgraded bearing response message or deleting bearing response message to the dedicated bearing processing response message of S-GW transmission; The dedicated bearing that MME sends to SGSN is handled dedicated bearing request to create message, change bearing request message or the deleting bearing request message of request message for being added with the synchronous indication information element of carrying (Bearer Synch).MME is when beared information that SGSN issues, can carry out the mapping conversion of EPS bearer context parameter information and PDP Context parameter information by MME, also EPS bearer context parameter information can be handed down to SGSN and indicate SGSN to carry out the mapping conversion of EPS bearer context parameter information and PDP Context parameter information.

In the present embodiment, step 45 for MME when SGSN sends synchronous indication information and beared information, send by the mode of in existing dedicated bearing processing messages, carrying synchronous indication information (carrying synchronous indication information element); In addition, MME sends synchronous indication information to SGSN and can also independent message (as: carrying synchronization request message) send, and the mode of carrying beared information in independent message sends, as step 45 ' shown in.

Step 45 ', the synchronous indication information that sends to SGSN of MME also can be used as an independent message (carrying synchronization request message) and issues, and carries beared information in the carrying synchronization request message; At beared information is when needing the dedicated bearing information of establishment, and the wheel synchronization type that comprises in the carrying synchronization request message is set to dedicated bearing and creates synchronous; At beared information during for the beared information that need to upgrade, the wheel synchronization type that comprises in the carrying synchronization request message is set to more that new bearer is synchronous; At beared information is when needing the beared information of deletion, and it is synchronous that the wheel synchronization type that comprises in the carrying synchronization request message is set to deleting bearing.

Step 46, receive the dedicated bearing that carries synchronous indication information element (Bearer Synch) that MME sends when handling request message at SGSN, SGSN carries out the context Synchronous Processing according to the beared information that the request message of indication information element and dedicated bearing processing synchronously comprises, that is: SGSN carries out the simultaneous operation of subscriber equipment bearer context according to synchronous indication information element and beared information, but does not trigger calling user device.SGSN sends the dedicated bearing processing response message that carries carrying sync response cell to MME, this carrying sync response cell is used to notify S-GW when receiving the dedicated bearing processing response message that carries carrying sync response cell, S-GW does not need to carry out information interaction with P-GW, does not need to trigger sending corresponding dedicated bearing processing response message to P-GW etc. as: S-GW.Dedicated bearing processing response message is that the dedicated bearing that carries carrying sync response cell is created response message, upgraded bearing response message or deleting bearing response message.

In the present embodiment, step 46 is SGSN when MME sends response message, sends by the mode of carrying the sync response cell in existing dedicated bearing processing response message; In addition, SGSN sends response message to MME and can also independent message (as: carrying synchronous response message) send, and comprises the sync response type information in independent message, as step 46 ' shown in.

Step 46 ', SGSN sends the carrying synchronous response message to MME, comprises and beared information corresponding synchronous respond style information in the carrying synchronous response message, do not need to trigger sending the carrying synchronous response message to P-GW etc. in order to notice MME indication S-GW.Concrete, SGSN is in the carrying synchronous response message that MME sends, the sync response type can be creates dedicated bearing sync response, more new bearer sync response or deleting bearing sync response, being respectively applied for notice MME carrying finishes synchronously, and notice MME indication S-GW is not to the wireless access type of P-GW report of user equipment.

Present embodiment changes and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the dedicated bearing context of subscriber equipment by MME, the first mobile management net element SGSN to the non-current residing network of user equipment registration sends synchronous indication information, indication SGSN carries out bearer context simultaneous operation according to the beared information that sends, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between SAE network and UMTS network under the idle pulley, thereby strengthen the function of ISR mechanism saving signaling under the subscriber equipment idle condition.

If the current residing network of subscriber equipment is the UMTS network, the network equipment that triggers the context Synchronous Processing also can be SGSN; Trigger and realize the synchronous handling process of subscriber equipment bearer context about SGSN, trigger to present embodiment MME and realize that the synchronous processing of subscriber equipment bearer context is similar, repeat no more.

Fig. 5 is the context of the invention method for synchronous the 4th an embodiment signaling diagram.The difference of a kind of context synchronization method second embodiment of present embodiment and the present invention is that the contextual variation of present embodiment subscriber equipment causes by creating the subscriber equipment default bearer; Initiate the context Synchronous Processing flow process of subscriber equipment by network equipment S-GW.As shown in Figure 5, present embodiment comprises:

Step 51, MME send to S-GW and create default bearer request message (Create Default BearerRequest), be used to ask to create the default bearer of subscriber equipment, carry the wireless access type (RAT Type) of subscriber equipment in this default bearer request message.

Step 52, S-GW receive and create the default bearer request message and send to P-GW.

Step 53, P-GW receive when creating the default bearer request message, mutual with PCRF, the wireless access type (RAT) of subscriber equipment is sent to PCRF, PCRF initiates IP-CAN session modification/termination (PCRF-Initiated IP-CAN Session Modification/Termination) flow process, if user device configuration dynamic PCC strategy, PCRF provides PCC policy information to P-GW, as service quality (Quality of Service is hereinafter to be referred as QoS) strategy.

Step 54, P-GW send to S-GW and create default bearer response message (Create DefaultBearer Response).

Step 55, S-GW send to MME and create default bearer response message (Create Default BearerResponse).

Step 56, at S-GW during to establishment default bearer response message that MME sends, S-GW detects subscriber equipment and whether has enabled the ISR function; If S-GW detects subscriber equipment and has enabled the ISR function, S-GW adds carrying synchronous indication information element (Bearer Synch) in creating the default bearer request message, and sends the establishment default bearer request message that carries the synchronous indication information element of carrying to SGSN; This carries synchronous indication information element and is used for indicating SGSN: create the default bearer information that needs that the default bearer request message comprises create and carry out the simultaneous operation of bearer context according to being equipped with, but do not trigger this subscriber equipment of paging.

In the present embodiment, step 56 for S-GW when SGSN sends synchronous indication information and beared information, send by the mode of in existing establishment default bearer request message, carrying synchronous indication information (carrying synchronous indication information element); In addition, S-GW sends synchronous indication information to SGSN and can also independent message (as: carrying synchronization request message) send, and the mode of carrying beared information in independent message sends, as step 56 ' shown in.

Step 56 ', the default bearer information in the carrying synchronization request message, add to need created of S-GW, and send to SGSN, carrying the wheel synchronization type that comprises in the synchronization request message this moment, to be set to create default bearer synchronous.

Step 57, receive the establishment default bearer that carries synchronous indication information element (Bearer Synch) that S-GW sends when handling request message at SGSN, SGSN carries out the context Synchronous Processing according to the default bearer information that the needs that synchronous indication information element and establishment default bearer processing request message comprise are created, that is: SGSN carries out the simultaneous operation of subscriber equipment bearer context according to synchronous indication information element and beared information, but does not trigger calling user device; And SGSN sends the establishment default bearer response message that carries carrying sync response cell to S-GW, this carrying sync response cell is used to notify S-GW not need to carry out information interaction with P-GW, does not need to trigger to send as: S-GW and creates the default bearer response message to P-GW etc.

In the present embodiment, step 57 is SGSN when S-GW sends response message, sends by the mode of carrying the sync response cell in existing establishment default bearer response message; In addition, SGSN sends response message to S-GW and can also independent message (as: carrying synchronous response message) send, and comprises the sync response type information in independent message, as step 57 ' shown in.

Step 57 ', SGSN sends the carrying synchronous response message to S-GW, in the carrying synchronous response message, comprise the default bearer information corresponding synchronous respond style information of creating with needs (it is synchronous to create default bearer), S-GW does not need to carry out information interaction with P-GW in order to notice, does not need to trigger sending the carrying synchronous response message to P-GW etc. as: S-GW.

Present embodiment changes and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the default bearer context of subscriber equipment by S-GW, the first mobile management net element SGSN to the non-current residing network UMTS network of user equipment registration sends synchronous indication information, the default bearer information that indication SGSN creates according to the needs that send is carried out bearer context simultaneous operation, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between SAE network and UMTS network under the idle pulley, thereby strengthen the function of ISR mechanism saving signaling under the subscriber equipment idle condition.

Realize when being the UMTS network that context Synchronous Processing flow process is similar to present embodiment, repeat no more for the current resident network of subscriber equipment.

Fig. 6 is the context of the invention method for synchronous the 5th an embodiment signaling diagram.The variation of this enforcement customer equipment context causes by creating the subscriber equipment default bearer, be that with the difference of a kind of context synchronization method the 4th embodiment of the present invention present embodiment is initiated the context Synchronous Processing flow process of subscriber equipment by network equipment MME.As shown in Figure 6, present embodiment comprises:

Step 61, MME send to S-GW and create default bearer request message (Create Default BearerRequest), be used to ask to create the default bearer of subscriber equipment, carry the wireless access type (RAT Type) of subscriber equipment in this default bearer request message.

Step 62, S-GW receive and create the default bearer request message and send to P-GW.

Step 63, P-GW receive when creating the default bearer request message, mutual with PCRF, the wireless access type (RAT) of subscriber equipment is sent to PCRF, PCRF initiates IP-CAN session modification/termination (PCRF-Initiated IP-CAN Session Modification/Termination) flow process, if user device configuration dynamic PCC strategy, PCRF provides PCC policy information to P-GW, as service quality (Quality of Service is hereinafter to be referred as QoS) strategy.

Step 64, P-GW send to S-GW and create default bearer response message (Create DefaultBearer Response).

Step 65, S-GW send to MME and create default bearer response message (Create Default BearerResponse).

Step 66, when MME receives the establishment default bearer response message that S-GW sends, MME detects subscriber equipment and whether has enabled the ISR function; If MME detects subscriber equipment and enabled the ISR function, MME adds carrying synchronous indication information element (Bearer Synch) in creating the default bearer request message, and sends the establishment default bearer request message that carries the synchronous indication information element of carrying to SGSN; This carries synchronous indication information element and is used for indicating SGSN: create the default bearer information that needs that the default bearer request message comprises create and carry out the simultaneous operation of bearer context according to being equipped with, but do not trigger this subscriber equipment of paging.

In the present embodiment, step 66 for MME when SGSN sends synchronous indication information and beared information, send by the mode of in existing establishment default bearer request message, carrying synchronous indication information (carrying synchronous indication information element); In addition, MME sends synchronous indication information to SGSN and can also independent message (as: carrying synchronization request message) send, and the mode of carrying beared information in independent message sends, as step 66 ' shown in.

Step 66 ', the default bearer information in the carrying synchronization request message, add to need created of MME, and send to SGSN, carrying the wheel synchronization type that comprises in the synchronization request message this moment, to be set to create default bearer synchronous.

Step 67, receive the establishment default bearer that carries synchronous indication information element (Bearer Synch) that MME sends when handling request message at SGSN, SGSN carries out the context Synchronous Processing according to the default bearer information that the needs that synchronous indication information element and establishment default bearer processing request message comprise are created, that is: SGSN carries out the simultaneous operation of subscriber equipment bearer context according to synchronous indication information element and beared information, but does not trigger calling user device; And SGSN sends the establishment default bearer response message that carries carrying sync response cell to MME, this carrying sync response cell is used to notify S-GW not need to carry out information interaction with P-GW, does not need to trigger to send as: S-GW and creates the default bearer response message to P-GW etc.

In the present embodiment, step 67 is SGSN when MME sends response message, sends by the mode of carrying the sync response cell in existing establishment default bearer response message; In addition, SGSN sends response message to MME and can also independent message (as: carrying synchronous response message) send, and comprises the sync response type information in independent message, as step 67 ' shown in.

Step 67 ', SGSN sends the carrying synchronous response message to MME, in the carrying synchronous response message, comprise the default bearer information corresponding synchronous respond style information of creating with needs (it is synchronous to create default bearer), MME does not need to indicate S-GW and P-GW to carry out information interaction in order to notice, does not need to report to P-GW the wireless access type etc. of this subscriber equipment as: S-GW.

Step 68, MME send and carry synchronous indication information element (Bearer Synch) renewal bearing request message (Update Bearer Request) to S-GW, S-GW does not carry out information interaction with P-GW in order to notice, does not need to trigger sending the carrying synchronous response message to P-GW etc. as: S-GW; Perhaps, MME sends the carrying synchronization request message of the default bearer information that carries establishment to S-GW.

Step 69, S-GW reply the renewal bearing response message (Update Bearer Response) that carries the sync response cell to MME; Perhaps, S-GW replys the carrying synchronous response message of the default bearer information that carries establishment to MME.

Present embodiment changes and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the default bearer context of subscriber equipment by MME, the first mobile management net element SGSN to the non-current residing network UMTS network of user equipment registration sends synchronous indication information, the default bearer information that indication SGSN creates according to the needs that send is carried out bearer context simultaneous operation, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between SAE network and UMTS network under the idle pulley, thereby strengthen the function of ISR mechanism saving signaling under the subscriber equipment idle condition.

Fig. 7 is the context of the invention method for synchronous the 6th an embodiment signaling diagram.The difference of a kind of context synchronization method second embodiment of present embodiment and the present invention is that the current residing network of subscriber equipment is the UMTS network, and SGSN is second mobile management net element of the current residing network of embodiment of the invention subscriber equipment; The non-current residing network of user equipment registration is the SAE network, and MME is first mobile management net element of the non-current residing network of embodiment of the invention subscriber equipment; The dedicated bearing of the subscriber equipment context that causes subscriber equipment that changes changes, and is initiated the context Synchronous Processing flow process of subscriber equipment by network equipment gateway (S-GW).As shown in Figure 7, present embodiment comprises:

Step 71, P-GW should send dedicated bearing to S-GW and handle request message; It is dedicated bearing request to create message (Create Dedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (DeleteBearer Request).

Step 72, S-GW detect the state of subscriber equipment, if subscriber equipment is in Idle state, the downlink signaling that S-GW buffer memory P-GW sends (i.e. request message is handled in carrying), and send downlink data announcement message (Downlink Data Notification) to SGSN, be used for signaling and trigger the SGSN calling user device.For the downlink data announcement message, can in the downlink data announcement message, increase a type cell, be used to indicate the downlink data announcement message to trigger the type that SGSN carries out paging, for example: when the type cell was downlink data, corresponding triggering paging type was that downlink data triggers; When the type cell was downlink signaling, corresponding triggering paging type was that downlink signaling triggers.For the paging that downlink data triggers, SGSN needs to set up empty port load-supporting with subscriber equipment; And the paging that triggers for downlink signaling, SGSN does not need to set up empty port load-supporting with subscriber equipment.

Step 73, SGSN send the beep-page message calling user device.

Step 74, subscriber equipment are received beep-page message, send service request information (ServiceRequest) to SGSN.

Step 75, SGSN are when receiving the service request information of subscriber equipment transmission, and the state of recording user equipment is moved to connected state by Idle state; SGSN sends to S-GW and upgrades bearing request message.What be different from prior art is that when this step SGSN triggered and obtain the page response (the reception subscriber equipment) of subscriber equipment at downlink signaling, SGSN and S-GW carried out alternately; And prior art is in the UMTS network, if the paging that SGSN is triggered by downlink signaling, SGSN does not need to set up empty port load-supporting with subscriber equipment, and SGSN does not need with S-GW mutual yet.This step is because S-GW has gone up buffer memory beared information (i.e. request message is handled in carrying), so SGSN need be mutual with S-GW, is used to notify S-GW to issue the beared information of buffer memory.

For the current residing network of subscriber equipment is the situation of SAE network, and when subscriber equipment was moved to connected state by Idle state, MME can be initiatively mutual with S-GW, recovers the empty port load-supporting of subscriber equipment; But for the current residing network of subscriber equipment is the situation of UMTS network, and when descending signaling triggering SGSN calling user device, when SGSN received the service request of subscriber equipment, SGSN was moved to connected state to the state of subscriber equipment by Idle state; Even the state of the subscriber equipment that SGSN upward writes down in the prior art is connected state from the Idle state migration, but SGSN is not mutual with S-GW, S-GW can't send to SGSN with the downlink signaling of buffer memory.Therefore, it is the method for connected state by the Idle state migration that step 72-step 75 provides the state of SGSN notice S-GW subscriber equipment, particularly when SGSN when downlink signaling triggers paging and receive the service request information that subscriber equipment sends, the state of SGSN notice S-GW subscriber equipment is the method for connected state by the Idle state migration.

Step 76, S-GW send dedicated bearing to SGSN and handle request message; It is dedicated bearing request to create message (Create Dedicated Bearer Request) that this dedicated bearing is handled request message, upgrade bearing request message (Update Bearer Request) or deleting bearing request message (DeleteBearer Request).

Step 77, SGSN reply dedicated bearing processing response message to S-GW; This dedicated bearing processing response message is that dedicated bearing is created response message (Create Dedicated Bearer Response), upgraded bearing response message (Update Bearer Response) or deleting bearing response message (DeleteBearer Response).

Step 78-step 79 ' in S-GW and MME realize the handling process that bearer context is synchronous alternately, to a kind of context synchronization method second embodiment step 35-step 36 of the present invention ' in S-GW realize alternately that to SGSN the synchronous processing of bearer context is similar, repeat no more.

The present embodiment subscriber equipment resides in the UMTS network, and by S-GW buffer memory beared information, when subscriber equipment was moved to connected state by Idle state, SGSN notice S-GW issued the beared information of buffer memory; In addition, change and subscriber equipment when having enabled signaling reduction under the idle pulley (ISR) function at the dedicated bearing context of subscriber equipment by S-GW, the first mobile management net element MME to the non-current residing network of user equipment registration sends synchronous indication information, indication MME carries out bearer context simultaneous operation according to the beared information that sends, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing; Simultaneously, help reducing the mobile management flow process of subscriber equipment between SAE network and UMTS network under the idle pulley, thereby strengthen the function of ISR mechanism saving signaling under the subscriber equipment idle condition.

On the basis of present embodiment technical scheme, the network equipment that triggers the context Synchronous Processing also can be SGSN; Realize the handling process that bearer context is synchronous alternately about SGSN and MME, to a kind of context synchronization method the 3rd embodiment step 45-step 46 of the present invention ' in MME realize alternately that to SGSN the synchronous processing of bearer context is similar, repeat no more.

Fig. 8 is the context of the invention synchronizer first example structure figure.As shown in Figure 8, present embodiment comprises detection module 81 and processing module 82.

Detection module 81 is used for detecting subscriber equipment and whether enabling signaling reduction function under the idle pulley when the bearer context of subscriber equipment changes.

Enabled signaling reduction function under the idle pulley if processing module 82 is used for subscriber equipment, sent synchronous indication information and beared information to first mobile management net element of the non-current residing network of user equipment registration; Indication information is used to indicate first mobile management net element to carry out bearer context simultaneous operation according to beared information synchronously, but when carrying out bearer context simultaneous operation, does not trigger calling user device.

Present embodiment detects subscriber equipment by detection module and whether has enabled signaling reduction under the idle pulley (ISR) function when the bearer context of subscriber equipment changes, when subscriber equipment has been enabled ISR, send synchronous indication information and beared information by processing module to first mobile management net element of the non-current residing network of user equipment registration, indicate first mobile management net element to carry out bearer context simultaneous operation according to beared information, but when carrying out bearer context simultaneous operation, do not trigger calling user device, promptly initiate the Synchronous Processing flow process of bearer context by network side, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.

In actual applications, present embodiment can be used as a self-contained unit, also can be arranged among S-GW, MME or the SGSN, and as realizing a synchronous functional module of context, particularly, present embodiment can be wholely set with S-GW; If first mobile management net element is MME, present embodiment can be wholely set with the second mobile management net element SGSN; Perhaps, if first mobile management net element is SGSN, present embodiment can be wholely set with the second mobile management net element MME.

Fig. 9 is the context of the invention synchronizer second example structure figure.As shown in Figure 9, the difference of present embodiment and the context of the invention synchronizer first embodiment is that in the present embodiment, detection module 81 comprises first detecting unit 811 or second detecting unit 812; Present embodiment context synchronizer also comprises the first response receiver module 83.

First detecting unit 811 is used for detecting subscriber equipment and whether enabling the ISR function when the dedicated bearing processing response message of second mobile management net element transmission that receives the current residing network of subscriber equipment.

Second detecting unit 812 is used for detecting described subscriber equipment and whether enabling the ISR function when second mobile management net element to the current residing network of subscriber equipment sends establishment default bearer response message.

The first response receiver module 83 is used for not triggering the operation of the respective response message of the described synchronous indication information of transmission to packet data network gateway when the respective response message of the described synchronous indication information that receives described first mobile management net element transmission.

In the present embodiment, if second mobile management net element is service general grouping service wireless support node SGSN, the context synchronizer also can comprise buffer memory sending module 84.

Buffer memory sending module 84 is used for the described beared information of buffer memory; Send the downlink data announcement message to SGSN, described downlink data announcement message is used for signaling and triggers the described subscriber equipment of SGSN paging; When SGSN receives the service request of subscriber equipment transmission, receive the renewal bearing request message that SGSN sends; Send the described beared information of buffer memory to SGSN.

Present embodiment detects subscriber equipment by detection module and whether has enabled signaling reduction under the idle pulley (ISR) function when the dedicated bearing of subscriber equipment or default bearer context change, when subscriber equipment has been enabled ISR, send synchronous indication information and beared information by processing module to first mobile management net element of the non-current residing network of user equipment registration, indicate first mobile management net element to carry out bearer context simultaneous operation but do not trigger calling user device according to beared information, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.Present embodiment can be used as a separate equipment, realizes the synchronous functional module of customer equipment context for one that also can be used as among the S-GW, and promptly present embodiment can be wholely set with S-GW.

Figure 10 is the context of the invention synchronizer the 3rd example structure figure.As shown in figure 10, the difference of present embodiment and the context of the invention synchronizer first embodiment is that in the present embodiment, detection module 81 comprises the 3rd detecting unit 813 or the 4th detecting unit 814; Present embodiment context synchronizer also comprises the second response receiver module 85.

The 3rd detecting unit 813 is used for detecting subscriber equipment and whether enabling the ISR function when sending dedicated bearing processing response message to gateway.

The 4th detecting unit 814 is used for detecting described subscriber equipment and whether enabling the ISR function when receiving the establishment default bearer response message of gateway transmission.

The second response receiving element 85 is used for when the respective response message of the described synchronous indication information that receives described first mobile management net element transmission, sends to gateway to be used to indicate described gateway not trigger the message of the respective response message of the described synchronous indication information of transmission to the packet data network gateway operation.

Present embodiment is initiated the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.Present embodiment can be used as an independently context synchronizer, also can be used as one and realizes that the synchronous functional module of context is integrated in the mobile management net element, as be integrated among MME or the SGSN.

Figure 11 is the mobile management net element first example structure figure of the present invention.Mobile management net element embodiment of the present invention is used in and carries out the mobility of user equipment management in the communication system of enabling ISR mechanism.As shown in figure 11, present embodiment comprises receiver module 111 and carrying synchronization module 112.

Receiver module 111 is used to receive synchronous indication information and the beared information that network side sends.

Carrying synchronization module 112 is used for carrying out bearer context simultaneous operation according to described synchronous indication information and beared information, and when carrying out described bearer context simultaneous operation, does not trigger the described subscriber equipment of paging.

Present embodiment receives synchronous indication information and the beared information that network side sends by receiver module, and by the carrying synchronization module carry out the bearer context simultaneous operation of subscriber equipment, but when carrying out bearer context simultaneous operation, do not trigger calling user device, thereby initiate the Synchronous Processing flow process of bearer context by network side, and realize subscriber equipment bearer context under the ISR mechanism synchronously in real time, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.

Figure 12 is the mobile management net element second example structure figure of the present invention.As shown in figure 12, the difference of present embodiment and mobile management net element of the present invention first embodiment is that present embodiment also comprises the transmission notification module.

If sending the network equipment of synchronous indication information and beared information to mobile management net element is gateway, the transmission notification module that present embodiment comprises is the first transmission notification module 1131.First sends notification module 1131 is used for sending the corresponding response message of described synchronous indication information to gateway, and this response message is used for indicating service gateway and does not trigger the operation of this response message of transmission to packet data network gateway.

If sending the network equipment of synchronous indication information and beared information to mobile management net element is second mobile management net element of the current residing network of subscriber equipment, the transmission notification module that present embodiment comprises is the second transmission notification module 1132.Second sends notification module 1132 is used for sending the corresponding response message of synchronous indication information to second mobile management net element, and this response message is used to indicate the second mobile management net element notification service gateway not trigger the operation of this response message of transmission to packet data network gateway.

Present embodiment is by sending to network side and the synchronous corresponding response message of indication information, be used for the notification service gateway when receiving this response message, do not trigger and send of the operation of this response message to packet data gateway, thereby further strengthen the ISR function, obviously reduced the complexity that subscriber equipment carries out the context Synchronous Processing.On the basis of present embodiment technical scheme, if the network equipment that sends synchronous indication information and beared information to mobile management net element is a gateway, present embodiment also can comprise signaling page response module.Signaling page response module be used for receive that gateway sends be used for signaling and trigger the downlink data announcement message of calling user device the time, according to this subscriber equipment of downlink data announcement message paging; When receiving the service request of subscriber equipment transmission, send the renewal bearing request message to gateway, be used to ask gateway to send the beared information of buffer memory.

One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of a preferred embodiment, and module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

One of ordinary skill in the art will appreciate that: the module in the device among the embodiment can be described according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.

Claims

1, a kind of context synchronization method is characterized in that, comprising:

When the bearer context of the subscriber equipment of signaling reduction ISR function changes under enabling idle pulley, send synchronous indication information and beared information to first mobile management net element of the non-current residing network of described user equipment registration;

2, context synchronization method according to claim 1 is characterized in that, before described first mobile management net element send pacing indication information and beared information, also comprises:

Detect described subscriber equipment and whether enable I SR function.

3, context synchronization method according to claim 2 is characterized in that, whether described detection subscriber equipment enables the ISR function comprises:

The dedicated bearing processing response message that sends at second mobile management net element that receives the current residing network of subscriber equipment, or when creating the default bearer response message, detect described subscriber equipment and whether enable the ISR function.

4, context synchronization method according to claim 2 is characterized in that, whether described detection subscriber equipment enables the ISR function comprises:

Sending dedicated bearing processing response message to gateway, or when receiving the establishment default bearer response message of gateway transmission, detecting described subscriber equipment and whether enable the ISR function.

According to claim 3 or 4 described context synchronization methods, it is characterized in that 5, described synchronous indication information is the synchronous indication information element of carrying; Describedly send synchronous indication information and beared information comprises to first mobile management net element:

Handle in request message or the establishment default bearer request message at dedicated bearing, add the synchronous indication information element of described carrying, send the dedicated bearing that carries the synchronous indication information element of described carrying to described first mobile management net element and handle request message or create the default bearer request message.

6, context synchronization method according to claim 5 is characterized in that, and is described after first mobile management net element sends synchronous indication information and beared information, also comprises:

Send at described first mobile management net element of reception, when carrying the dedicated bearing processing response message of carrying sync response cell or creating the default bearer response message, do not trigger sending dedicated bearing processing response message or creating of the operation of default bearer response message to packet data network gateway.

According to claim 3 or 4 described context synchronization methods, it is characterized in that 7, described synchronous indication information is the carrying synchronization request message; Describedly send synchronous indication information and beared information comprises to first mobile management net element:

The dedicated bearing information that add to change in the carrying synchronization request message or the default bearer information of establishment concurrently are sent to described first mobile management net element.

8, context synchronization method according to claim 7 is characterized in that, and is described after first mobile management net element sends synchronous indication information and beared information, also comprises:

When receiving the carrying synchronous response message of described first mobile management net element transmission, do not trigger sending of the operation of carrying synchronous response message to packet data network gateway; Or

When receiving the carrying synchronous response message of described first mobile management net element transmission, indicating service gateway does not trigger and sends the operation of carrying synchronous response message to packet data network gateway.

9, context synchronization method according to claim 2 is characterized in that, before whether described detection subscriber equipment enables the ISR function, also comprises:

Send described beared information to described second mobile management net element.

10, context synchronization method according to claim 9 is characterized in that, described second mobile management net element is service general grouping service wireless support node SGSN; Describedly send described beared information, comprising to second mobile management net element:

The described beared information of buffer memory;

Send the downlink data announcement message to SGSN, described downlink data announcement message is used for signaling and triggers the described subscriber equipment of SGSN paging;

When SGSN receives the service request of subscriber equipment transmission, receive the renewal bearing request message that SGSN sends;

Send the described beared information of buffer memory to SGSN.

11, context synchronization method according to claim 10 is characterized in that, when SGSN receives described downlink data announcement message, also comprises:

Described SGSN triggers the described subscriber equipment of paging according to described downlink data announcement message; When receiving the service request of described subscriber equipment transmission, send the renewal bearing request message to gateway, be used to ask described gateway to send the beared information of buffer memory.

12, a kind of context synchronizer is characterized in that, comprising:

Processing module has been enabled signaling reduction function under the idle pulley if be used for described subscriber equipment, sends synchronous indication information and beared information to first mobile management net element of the non-current residing network of described user equipment registration; Described synchronous indication information is used to indicate described first mobile management net element to carry out bearer context simultaneous operation according to described beared information, and is used to indicate first mobile management net element not trigger the described subscriber equipment of paging when carrying out described bearer context simultaneous operation.

13, context synchronizer according to claim 12 is characterized in that, described context synchronizer and gateway are wholely set.

14, context synchronizer according to claim 13 is characterized in that, described detection module comprises:

First detecting unit is used for detecting subscriber equipment and whether enabling the ISR function when the dedicated bearing processing response message of second mobile management net element transmission that receives the current residing network of subscriber equipment.

15, context synchronizer according to claim 13 is characterized in that, described detection module comprises:

Second detecting unit is used for detecting described subscriber equipment and whether enabling the ISR function when second mobile management net element to the current residing network of subscriber equipment sends establishment default bearer response message.

16, according to claim 14 or 15 described context synchronizers, it is characterized in that, also comprise:

The first response receiver module is used for not triggering the operation of the respective response message of the described synchronous indication information of transmission to packet data network gateway when the respective response message of the described synchronous indication information that receives described first mobile management net element transmission.

17, context synchronizer according to claim 16 is characterized in that, described second mobile management net element is service general grouping service wireless support node SGSN; Described context synchronizer also comprises:

The buffer memory sending module is used for the described beared information of buffer memory; Send the downlink data announcement message to SGSN, described downlink data announcement message is used for signaling and triggers the described subscriber equipment of SGSN paging; When SGSN receives the service request of subscriber equipment transmission, receive the renewal bearing request message that SGSN sends; Send the described beared information of buffer memory to SGSN.

18, context synchronizer according to claim 12 is characterized in that, second mobile management net element of described context synchronizer and the current residing network of subscriber equipment is wholely set.

19, context synchronizer according to claim 18 is characterized in that, described detection module comprises:

The 3rd detecting unit is used for detecting subscriber equipment and whether enabling the ISR function when sending dedicated bearing processing response message to gateway.

20, context synchronizer according to claim 18 is characterized in that, described detection module comprises:

The 4th detecting unit is used for detecting described subscriber equipment and whether enabling the ISR function when receiving the establishment default bearer response message of gateway transmission.

21, according to claim 19 or 20 described context synchronizers, it is characterized in that described detection module comprises:

The second response receiving element, be used for when the respective response message of the described synchronous indication information that receives described first mobile management net element transmission, being used to indicate described gateway not trigger the message of the respective response message of the described synchronous indication information of transmission to the packet data network gateway operation to the gateway transmission.

22, a kind of mobile management net element is used for carrying out the mobility of user equipment management in the communication system of enabling signaling reduction ISR function under the idle pulley, it is characterized in that, comprising:

23, mobile management net element according to claim 22 is characterized in that, described network side is a gateway, and described mobile management net element also comprises:

First sends notification module, is used for sending the corresponding response message of described synchronous indication information to gateway, and described response message is used for indicating service gateway and does not trigger the operation of the described response message of transmission to packet data network gateway.

24, mobile management net element according to claim 22 is characterized in that, described network side is second mobile management net element of the current residing network of subscriber equipment, and described mobile management net element also comprises:

Second sends notification module, be used for sending the corresponding response message of described synchronous indication information to described second mobile management net element, described response message is used to indicate the described second mobile management net element notification service gateway not trigger the operation of the described response message of transmission to packet data network gateway.

25, mobile management net element according to claim 22 is characterized in that, described network side is a gateway; Described mobile management net element also comprises:

Signaling page response module, be used for receive that described gateway sends be used for signaling and trigger the downlink data announcement message of calling user device the time, according to the described subscriber equipment of described downlink data announcement message paging; Perhaps when receiving the service request of described subscriber equipment transmission, send the renewal bearing request message, be used to ask described gateway to send the beared information of buffer memory to described gateway.