CN101541050B - Method and device for processing default connection of user equipment after intersystem switching - Google Patents

Abstract

The invention discloses a method and a device for processing the default connection of user equipment after intersystem switching. The method comprises the following steps that: the user equipment enters an E-UTRAN network from a GPRS network, wherein the user equipment has a packet data protocol context which is established between GPRS networks; the user equipment executes tracking area updating; and a mobility management entity establishes the default connection of the user equipment. Under conditions that the user equipment enters the E-UTRAN from the GPRS network and establishes a bearer and that the packet data protocol context is established between the user equipment and the network, the method solves the relation between a follow-up bearer and a default bearer of the user equipment which has the packet data protocol context when the packet data protocol context bearer is a non-default QoS bearer; meanwhile, in the process, the method avoids interrupting service in a service process of the user equipment, thereby ensuring service continuity.

Description

A kind of subscriber equipment switches processing method and the device that the back acquiescence connects between system

Technical field

The present invention relates to the communications field, particularly a kind of subscriber equipment switches processing method and the device that the back acquiescence connects between system.

Background technology

In SAE (System Architecture Evolution, the 3G system of evolution), hope can realize the always online of user, has therefore introduced the notion of default bearing (default bearer) and dedicated bearer (dedicatedbearer).When the user initially inserted EPC (Evolved Packet Core, the packet-based core networks of evolution) network, network was for user's distributing IP address and set up default bearing.As other business of network or UE (UserEquipment, subscriber equipment) initiation, and when the ability of default bearing can not provide service for these business, set up dedicated bearer for UE again.

For legacy system, when UE inserts UTRAN (UMTS Terrestrial Radio AccessNetwork, UMTS Terrestrial radio access network; UMTS is Universal Mobile TelecommunicationSystem, universal mobile telecommunications system) time, GPRS (General Packet Radio Service, GPRS) core net is not set up the ability of default bearing for UE, after adhering to, UE do not have IP address and PDP (Packet Data Protocol, packet data protocol) context only just activates PDP Context when initiating business, network just is UE distributing IP address.Can be the bearer types that UE sets up for network, a kind of processing scheme is that this carrying is considered as can be any one carrying, as long as for after UE distributed the IP address, the carrying of any one activation can be handled it as default bearing.

Under this processing scheme, UE (the especially UE of pre-R8 and GPRS network) may set up a GBR (Guaranteed Bit Rate very much in GPRS network, the assurance bit rate) carrying is used for real time business, or set up one with Default QoS (Default Quality of Service, default quality of service) different non-GBR (non-Guaranteed Bit Rate, non-ensured bit rate) carrying.At this moment, if UE takes place at UTRAN and E-UTRAN (Evolved UMTS Terrestrial RadioAccess Network, the UMTS Terrestrial radio access network of evolution) between the network when mobile, because the default bearing of setting up among carrying of being set up and the EPC is different, make UE after entering EPC, can not guarantee available default bearing, so need mechanism to handle this ambulant situation.

Again the processing scheme of prior art is elaborated below.

Fig. 1 is a communication system frame structure schematic diagram, as shown in the figure, UE is when inserting UTRAN/GERAN and E-UTRAN, core net node SGSN (Serving GPRS Support Node, serving GPRS support node) and MME (Mobility Management Entity, Mobility Management Entity) provides mobile management control plane function respectively, connect by the S3 interface between SGSN and the MME.Be connected to Serving GW (gateway) by SGSN and eNodeB respectively at user plane data transport service is provided.

In defined SAE process, when UE is attached to network execution Attach (adhering to) process, UE need to indicate whether PDN GW (Packet Data Network GateWay to network, packet data network gateway) is its distributing IP address, still from outside PDN (Packet Data Network, Packet Data Network) request IP address.MME for Default APN (Default Access PointName, acquiescence APN) selects a PDN-GW to set up a default bearing, selects a Serving GW for UE according to the CAMEL-Subscription-Information of UE simultaneously.After PDN-GW receives that default bearing is set up request, can be from PCRF (PolicyControl and Charging Rules Function, policy control and charging rule functions) obtain user's strategy and charging regulation, comprise user's the default bearing and the relevant parameter of dedicated bearer, these information return to Serving GW and MME, be respectively applied for the carrying of setting up between PDN-GW and the Serving GW, and the default bearing information such as IP address of UE are sent to UE.

When UE at first is linked among the UTRAN/GERAN, subsequent movement enters in the process of E-UTRAN may exist two kinds of situations, the one, UE does not set up PDP Context (context) with network, this situation might occur in the core net that UE has inserted pre-R8, and perhaps network successfully is not UE distributing IP address; Another kind of situation is to have set up PDP Context between UE and the network.

When not setting up PDP Context between UE and the GPRS network, enter E-UTRAN and at first carry out TAU (Tracking Area Update, tracing section updating) process, network finds that UE does not have PDP Context, then refuse current TAU request and send the TAU refusal, the follow-up initiation of indication UE Attach process inserts the SAE system again in refuse information.

When UE is in connection status, and PDP is when being in state of activation, enters in the process of E-UTRAN and carries out handoff procedure.If UE is in idle condition, and PDP is in state of activation when (keeping, just deleted the connection of air interface in network), enters in the process of E-UTRAN and should carry out the TAU process.

Though existing scheme has solved the problem when not having PDP Context, but its deficiency is: under the situation of existing PDP Context, and this PDP is that a carrying that does not meet acquiescence QoS (as is used for the GBR carrying of real time business (as session service, stream business etc.), or the non-GBR that does not meet acquiescence QoS carries) time, there is not scheme to handle the follow-up carrying of the UE that has PDP Context and the relation between the default bearing.

Summary of the invention

The invention provides a kind of processing method and device that the back acquiescence connects that between system, switch, in order to solve under the situation of existing PDP Context between UE and the network, when this PDP is a carrying that does not meet acquiescence QoS, solve the follow-up carrying of UE of existing PDP Context and the relation between the default bearing.

The invention provides a kind of subscriber equipment and between system, switch the processing method that the back acquiescence connects, comprise the steps:

UE enters E-UTRAN by GPRS network, and described UE establishes PDPContext between GPRS network;

UE carries out TAU;

MME is that UE sets up the acquiescence connection;

Wherein, described MME is that UE sets up the acquiescence connection, is specially:

The bearing resource that MME receives described UE discharges request; Determine that described carrying is the unique carrying in the unique PDN connection of described UE, and be the carrying of non-acquiescence QoS; MME initiates Detach (deexcitation) and Attach process;

Or,

Determine that described carrying is the unique carrying in the unique PDN connection of described UE, and be the carrying of non-acquiescence QoS; MME notice PDN GW initiates to revise to described carrying;

Or,

When UE enters E-UTRAN, determine in the PDN connection, to be not used in the mark that indicates default bearing; MME determines that according to strategy one of them is carried as default bearing.

Preferably, described MME initiates Detach and Attach process, is specially:

MME initiates Detach, and indication Detach type is re-attach in Detach;

UE initiates the Attach process after finishing Detach.

Preferably, described PDN GW initiates to revise to described carrying, is specially:

PDN GW initiates to revise to described carrying according to Default QoS.

Preferably, when MME determines that according to strategy one of them is carried as default bearing, further comprise:

LBI (Linked Bearer Identifier, link bearing identification symbol) is designated as the value of the EPSBearer ID (Evolved Packet System Bearer ID, the grouping system bearing identification of evolution) of this carrying.

The present invention also provides a kind of subscriber equipment to switch the processing unit that the back acquiescence connects between system, comprising:

The tracing section updating module is used for after UE enters E-UTRAN by GPRS network, carries out UETAU, and described UE establishes PDP Context between GPRS network;

Acquiescence connection processing module is used for after the tracing section updating module is carried out TAU, and making MME is that UE sets up the acquiescence connection;

Wherein, described acquiescence connection processing module comprises: first determining unit and the first connection processing unit, perhaps comprise second determining unit and the second connection processing unit, and perhaps comprise the 3rd determining unit and the 3rd connection processing unit;

First determining unit, be used for after Mobility Management Entity receives the bearing resource release request of described subscriber equipment, determine that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and be the carrying of non-acquiescence QoS, then trigger the first connection processing unit;

The first connection processing unit is used for being triggered Mobility Management Entity and initiating deexcitation and attaching process by after the triggering of first determining unit;

Second determining unit is used for determining that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and is the carrying of non-acquiescence QoS, then triggers the second connection processing unit;

The second connection processing unit is used for by after the triggering of second determining unit, triggers Mobility Management Entity notice packet data network gateway described carrying is initiated to revise;

The 3rd determining unit is used for when subscriber equipment enters E-UTRAN, determines to be not used in the mark that indicates default bearing on Packet Data Network connects, and then triggers the 3rd connection processing unit;

The 3rd connection processing unit is used for by after the triggering of the 3rd determining unit; Trigger Mobility Management Entity and determine that according to strategy one of them is carried as default bearing.

Preferably, the described first connection processing unit comprises:

The deexcitation subelement is used to trigger Mobility Management Entity and initiates deexcitation, and indication deexcitation type is reattachment in deexcitation;

Adhere to subelement, be used for after finishing the subscriber equipment deexcitation, initiating attaching process.

Preferably, the described second connection processing subelement comprises:

Obtain subelement, be used to obtain acquiescence QoS;

Revise subelement, be used to trigger packet data network gateway and described carrying initiated to revise according to obtaining the acquiescence QoS that subelement obtains.

Preferably, described acquiescence connection processing module further comprises:

The indication subelement is used for the link bearing identification being accorded with the value of the grouping system bearing identification of the evolution that is designated as this carrying when the triggering Mobility Management Entity determines that according to strategy one of them is carried as default bearing.

Beneficial effect of the present invention is as follows:

By above-mentioned enforcement, can find out that the present invention not only provides at UE is entered E-UTRAN and is set up carrying by GPRS network, this UE and network have established under the situation of PDP Context, when this PDP is the carrying of a non-acquiescence QoS, the follow-up carrying of UE of existing PDP Context and the relation between the default bearing have been solved; Simultaneously also need be in the business procedure of UE in this process interrupting service, thereby guaranteed professional continuity.

Description of drawings

Fig. 1 is a communication system frame structure schematic diagram in the prior art;

Fig. 2 is the connection processing method in the subscriber equipment deleting load-bearing described in the embodiment of the invention;

Fig. 3 comes to provide for UE the implementing procedure schematic diagram of acquiescence connection for the mode that adopts the UE reattachment described in the embodiment of the invention;

Fig. 4 comes to provide for UE the implementing procedure schematic diagram of acquiescence connection for the mode that adopts bearing modification described in the embodiment of the invention;

Fig. 5 enters the TAU implementing procedure schematic diagram of E-UTRAN from UTRAN for UE described in the embodiment of the invention;

Fig. 6 switches the processing unit structural representation that the back acquiescence connects between system described in the embodiment of the invention;

Fig. 7 is the first execution mode structural representation described in the embodiment of the invention;

Fig. 8 is the second execution mode structural representation described in the embodiment of the invention;

Fig. 9 is the 3rd an execution mode structural representation described in the embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.

At first several schemes that may solve are analyzed, made when disclosing its shortcoming that may bring, also reach the purpose that throws a flood of light on technical solution of the present invention simultaneously.

A kind of scheme is, when the existing business of UE is not interactive class (interactive) business or background class (background) business, if do not have the situation of PDP Context to handle according to UE, promptly, when finding that after carrying out TAU bearer types does not meet requiring of default bearing, then refuse the TAU request of UE and require UE to initiate the Attach process again.But under this processing mode, the service disconnection that can cause UE to initiate, thus influence the experience of UE to business continuance, for the user, be to be ready to accept this service disconnection.Therefore to handle be improper to this mode.

If another program of design is in the later stage of TAU process, when MME finds that the existing carrying of UE is used for the GBR business, to initiate the foundation of default bearing.Yet this process need is revised the behavior of existing P DNGW, makes PDN GW not for UE redistributes the IP address, because UE has had the IP address, if conflicting between the IP address between the distributing IP address will not cause default bearing and other carries again.Yet the definition of among the SAE default bearing being set up process be might but be not to be necessary for UE to redistribute the IP address, so this can influence the continuity of existing business equally.And, though UE can give UE distributing IP address (it is because UE also may use PDN to connect from outside PDN network requests IP address that this indication is sent by UE) in network indicates whether to set up the process of default bearing in the Attach process, but in the TAU process, UE can not send this indication.

Also has another kind of possible scheme, when connecting (or the non-GBR carrying that QoS is different with default QoS) when UE has only a GBR in the UTRAN/GERAN network, and this connects because certain reason is retained, as at VoIP (Voice over IP, IP-based audio call) user presses the time-out talk key in the process, and this reason can make that UE enters idle condition.The state of UE was idle condition but the PDP Context of activation was arranged this moment, therefore when this UE enters E-UTRAN, should carry out the TAU process, but when this GBR carrying is released because of reasons such as professional terminations, just without any being connected, this moment, UE will enter exit state according to the 3GPP standard between UE and the core net, yet this moment, possible actual conditions were that UE does not wish to nullify from network, and UE also just wishes to carry out a common professional termination procedure to the deletion of this GBR carrying.

In view of the analysis that above various possible schemes are handled, the present invention proposes following settling mode.

Fig. 2 is the connection processing method in the subscriber equipment deleting load-bearing, as shown in the figure, can comprise the steps:

Step 201, UE enter E-UTRAN by GPRS network, and described UE establishes PDP Context between GPRS network;

Step 202, UE carry out TAU;

Step 203, MME are that UE sets up the acquiescence connection.

Wherein, the MME in the step 203 is that UE sets up the acquiescence connection, can be specially one of following three kinds of modes:

1, MME receives the bearing resource release request of described UE;

Determine that described carrying is the unique carrying in the unique PDN connection of described UE, and be the carrying of non-acquiescence QoS;

MME initiates Detach and Attach process.

Concrete, MME initiate Detach and Attach process can for:

MME initiates Detach, and indication Detach type is re-attach in Detach;

UE initiates the Attach process after finishing Detach.

2, determine that described carrying is the unique carrying in the unique PDN connection of described UE, and be the carrying of non-acquiescence QoS;

MME notice PDN GW initiates to revise to described carrying.

Concrete, when PDN GW initiated to revise to described carrying in follow-up process, PDN GW can initiate to revise to described carrying according to Default QoS in follow-up process.

3, when UE enters E-UTRAN, determine in the PDN connection, to be not used in the mark that indicates default bearing;

MME determines that according to strategy one of them is carried as default bearing.

Further, when MME determines that according to strategy one of them is carried as default bearing, LBI can also be designated as the value of the EPS Bearer ID of this carrying.

The objective of the invention is to, make to be carried as a GBR carrying, or a non-GBR different with Default QoS can take a decision as to whether UE by network and set up default bearing when carrying when UE is existing.

Like this, when having following situation, UE has only a PDP Context in the UTRAN/GERAN network, and this PDP Context is used for real time business, this moment, this connected because certain reason is retained (press as user in the VoIP process and suspend talk key), and UE enters idle condition.When UE enters E-UTRAN, should carry out the TAU process in this case.After TAU finishes, an EPS Bearer (Evolved Packet System Bearer, the grouping system carrying of evolution) is arranged between UE and the EPC, be connected among the PDN.Because when professional termination the and deleting load-bearing, determine that this carrying is that network can determine follow-up action and UE is nullified from network after the unique carrying in the unique PDN connection of this UE when UE or network.

How following specific embodiment implements so that connect for UE provides acquiescence if describing.

Embodiment one:

In the present embodiment, find current EPS (the Evolved Packet System that needs deletion at MME, the grouping system of evolution) carrying is that last (also being unique) in unique PDN connections of UE carried, and this carrying that need delete carrying that is not a non-GBR; Then MME initiates Detach (deexcitation) process to UE, and deletes all carryings of UE in the Detach process, and indication UE initiates Re-Attach (reattachment) process in Detach type (deexcitation type) simultaneously.

Fig. 3 comes to provide for UE the implementing procedure schematic diagram of acquiescence connection for the mode that adopts the UE reattachment, and wherein step 305 is to the load bearing deactivation process of step 313 for PDN GW initiation; The bearing resource dispose procedure that step 301 is initiated for UE to step 313.Present embodiment mainly in the load bearing deactivation process that PDN GW initiates, implementation step 311 judge whether to initiate the Detach process by MME, then, as shown in the figure, can comprise the steps:

Step 301, UE initiate bearing resource to MME and discharge request, discharge existing bearing resource, carrying parameter is LBI, PTI (Protocol Transaction Identifier, the protocol transaction identifier) and TFT (Traffic Flow Template, the Business Stream masterplate), wherein LBI is the EPS Bearer ID of this carrying.

Step 302, MME select the original Serving GW that connects of this carrying, and transmit request bearing resource release message.

Step 303, Serving GW will ask the bearing resource release message to be transmitted to the PDNGW of LBI indication.

If step 304 has been used the PCC framework, then carry out alternately with PCRF.

The process of load bearing deactivation is initiated in step 305, PDN GW decision.

Step 306, PDN GW send the deleting bearing request to Serving GW, require the carrying of deletion EPS BearerID indication.

Step 307, Serving GW are transmitted to MME with the deleting bearing request message.

Step 308, MME send out to eNodeB and activate the carrying request, require deleting bearing from the S1 interface.

Step 309, eNodeB discharge the air interface carrying of UE.

Step 310, eNodeB carry deexcitation to the MME response.

Step 311, MME judge whether to initiate Detach.

In this step, MME judges that this carrying is the unique carrying in the unique PDN connection of UE, and not the non-GBR carrying, then MME not only continues to finish the following step 312 of PDN GW initiation, 313 load bearing deactivation process, also the Detach process is initiated in decision, and Detach type is set to re-attach, requires UE to initiate the Attach process after finishing the Detach process, deletes UE all carryings in EPC simultaneously.

Step 312, MME are to Serving GW response deleting load-bearing.

Step 313, Serving GW are to PDN GW response deleting load-bearing.

Step 314, MME initiate the Detach process, and wherein Detach Type is Re-attach.

This step also can just be initiated after step 311.

Step 315, UE initiate the Attach process, and the PDN indicated with DefaultAPN connects, and set up default bearing on connecting.

Embodiment two:

In the present embodiment, illustrated at network and found that the EPS carrying of current deletion is last carrying in this PDN connection, and when the carrying of this deletion is the carrying of a non-acquiescence QoS, network is initiated a dedicated bearer modification process, the QoS of this carrying is revised as Default QoS, and this carrying is designated as the implementation process of default bearing.

Fig. 4 comes to provide for UE the implementing procedure schematic diagram of acquiescence connection for the mode that adopts bearing modification, as shown in the figure, can comprise the steps:

Step 401, UE initiate bearing resource to MME and discharge request.

In this step, UE initiates request in order to discharge existing bearing resource, and carrying parameter in the request message is LBI, PTI and TFT, and wherein LBI is the EPS Bearer ID of this carrying.

Step 402, MME transmit bearing resource to Serving GW and discharge request.

In this step, MME is forwarded to Serving GW with request, and MME discerns this LBI and is a carrying in this PDN connection; Simultaneously, MME judges that this carrying is the unique carrying in the unique PDN connection of UE, and not the non-GBR carrying, then MME carries bearer modification (bearing modification) indication in sending to the message of ServingGW, requires PDN GW according to the modification of the default QoS initiation of carrying in the message to carrying.These two parameters that increase newly do not need Serving GW to understand in the enforcement.

Step 403, Serving GW will carry the request of release and send to the PDNGW that this carrying is connected.

If step 404 has been used the PCC framework, then carry out alternately the release of notice carrying between PDN GW and the PCRF.

Step 405, PDN GW initiate the dedicated bearer modification process.

In this step, the qos parameter of the carrying of carrying in message must be Default QoS, and using this process can be the default bearing that meets Default QoS with original bearing modification just, will carry the carrying that is revised as a non-GBR from GBR simultaneously.

Embodiment three:

Present embodiment has been described the TAU process that UE enters E-UTRAN from UTRAN/GERAN, in this process, is default bearing if there is not which carrying of mark, then selects one from existing PDP Context and is labeled as default bearing.Because of RAB ID/NSAPI (the Radio Access Bearer Identifier/Network Service Access Point Identifier of UE in the UTRAN/GERAN network, wireless access bearing sign symbol/Network Service Access Point Identifier symbol) be one to one with EPS Bearer ID, therefore after RAB/NSAPI being mapped to EPS Bearer ID, selecting a bearing mark from the carrying that each PDN connects is default bearing, and LBI is designated as the EPS Bearer ID of this carrying.If UE has only a PDP Context, then LBI is designated as the value of the EPSBearer ID after this PDP Context shines upon.This process is obtained from SGSN at MME after the PDP context of UE, realizes in the process of doing the carrying mapping.After following step 505 or step 507, the PDP context that preserves in the MME acquisition origin node can specify one to be carried as default bearing, sets up the LBI value.And, the LBI value is notified to new Serving GW and PDN-GW by follow-up carrying foundation, renewal process.

Fig. 5 for UE from the TAU implementing procedure schematic diagram that UTRAN enters E-UTRAN, as shown in the figure, can comprise the steps:

Step 501, UE enter E-UTRAN from UTRAN.

Step 502, UE send the tracing section updating request to eNodeB.

Step 503, eNodeB send the tracing section updating request to MME.

Step 504, MME send the PDP Context request to the former Old MME for the UE service.

Step 505, Old MME respond PDP Context to MME.

Step 506, MME send the PDP Context request to SGSN.

Step 507, SGSN respond PDP Context to MME.

Step 508, network carry out authentication to UE.

Step 509, MME and Old MME carry out PDP Context and confirm.

Step 510, MME and SGSN carry out PDP Context and confirm.

Step 511, MME send the carrying request of setting up to the New Serving GW that service is provided for UE.

Step 512, New Serving GW send more new bearer request to PDN GW.

Step 513, PDN GW and PCRF are mutual.

Step 514, PDN GW send more new bearer response to New Serving GW.

Step 515, New Serving GW send to MME and set up the carrying response.

Step 516, MME send location update message to HSS.

Step 517, HSS initiate cancel location message to Old MME.

Step 518, SGSN send the Iu release command to RNC.

Step 519, RNC discharge to SGSN feedback Iu and finish.

Step 520, Old MME confirm to HSS feedback canceling position.

Step 521, HSS insert subscription data to MME.

Step 522, MME insert subscription data to the HSS feedback and confirm.

Step 523, HSS send the position to MME and upgrade affirmation.

Step 524, SGSN send the deleting bearing request to Old Serving GW.

Step 525, Old Serving GW send the deleting bearing response to SGSN.

Step 526, MME upgrade to UE feedback and tracking district and accept.

Step 527, UE send tracing section updating to MME and finish.

The present invention also provides switches the processing unit that the back acquiescence connects between a kind of system, describe below in conjunction with the embodiment of accompanying drawing to this device.

Fig. 6 switches the processing unit structural representation that the back acquiescence connects between system, as shown in the figure, can comprise tracing section updating module 601, acquiescence connection processing module 602 in the device, wherein:

Tracing section updating module 601 is carried out UETAU after UE enters E-UTRAN by GPRS network, described UE establishes PDP Context between GPRS network;

Acquiescence connection processing module 602 is after the tracing section updating module is carried out TAU, and making MME is that UE sets up the acquiescence connection.

In the device, acquiescence connection processing module 602 can have following several execution mode, describes respectively below.

Fig. 7 is the first execution mode structural representation, as shown in the figure, can comprise in the acquiescence connection processing module 602:

First determining unit 701 is used for determining that described carrying is the unique carrying in the unique PDN connection of described UE, and being the carrying of non-acquiescence QoS after MME receives the bearing resource release request of described UE, then triggers the first connection processing unit;

The first connection processing unit 702 is used for being triggered MME and initiating Detach and Attach process by after the triggering of first determining unit.

Can comprise in the described first connection processing unit:

Deexcitation subelement 7021 is used to trigger MME and initiates Detach, and indication Detach type is re-attach in Detach;

Adhere to subelement 7022, be used for after finishing UE Detach, initiating the Attach process.

Fig. 8 is the second execution mode structural representation, as shown in the figure, can comprise in the acquiescence connection processing module 602:

Second determining unit 801 is used for determining that described carrying is the unique carrying in the unique PDN connection of described UE, and is the carrying of non-acquiescence QoS, then triggers the second connection processing unit;

The second connection processing unit 802 is used for by after the triggering of second determining unit, triggers MME notice PDN GW described carrying is initiated to revise.

Can comprise in the described second connection processing subelement:

Obtain subelement 8021, be used to obtain Default QoS;

Revise subelement 8022, be used to trigger PDN GW and described carrying initiated to revise according to obtaining the Default QoS that subelement obtains.

Fig. 9 is the 3rd execution mode structural representation, as shown in the figure, can comprise in the acquiescence connection processing module 602:

The 3rd determining unit 901 is used for when UE enters E-UTRAN, determines to be not used in the mark that indicates default bearing in the PDN connection, then triggers the 3rd connection processing unit;

The 3rd connection processing unit 902 is used for by after the triggering of the 3rd determining unit; Trigger MME and determine that according to strategy one of them is carried as default bearing.

Can further include in the described acquiescence connection processing module:

Indicating member 903 is used for LBI being designated as the value of the EPS Bearer ID of this carrying when triggering MME determines that according to strategy one of them is carried as default bearing.

By above-mentioned enforcement as can be seen, when UE has only when carrying in network, and this carrying is not the carrying that meets Default QoS, carries as a GBR, or the carrying that QoS is higher, then MME can continue as the connection that UE provides always-on according to the current connection situation decision of UE.

Concrete, provide Detach to be embodied as UE in force being connected of always-on is provided with the mode of initiating bearing modification.Under the Detach mode, the Detach process is initiated in MME decision, and indication UE initiates an Attach process again in finishing the Detach process, regains and being connected of default APN, IP address and default bearing from network; Under the mode of bearing modification, can only initiate the bearing modification process by MME notice PDN GW, be a carrying that meets Default QoS with the current bearing modification that needs to delete.

Further, also proposing in the enforcement when UE enters E-UTRAN, is default bearing if there is not which carrying of mark, and bearing mark of then network based policy selection is a default bearing; Is default bearing if UE has only a carrying with this bearing mark, to meet all signaling processes of EPS network.

By above-mentioned enforcement, can find out that the present invention not only provides at UE is entered E-UTRAN and is set up carrying by GPRS network, this UE and network have established under the situation of PDP Context, when this PDP is the carrying of a non-acquiescence QoS, solved the relation between existing PDP Context and the default bearing; Simultaneously also need be in the business procedure of UE in this process interrupting service, thereby guaranteed professional continuity.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (8)

1. a subscriber equipment switches the processing method that the back acquiescence connects between system, it is characterized in that, comprises the steps:

Subscriber equipment enters the universal mobile telecommunications system land radio access web E-UTRAN network of evolution by general packet radio service (GPRS) network, and described subscriber equipment establishes block data protocol context between GPRS network;

Subscriber equipment is carried out tracing section updating;

Mobility Management Entity is that subscriber equipment is set up the acquiescence connection;

Wherein, described Mobility Management Entity is that subscriber equipment is set up the acquiescence connection, is specially:

The bearing resource that Mobility Management Entity receives described subscriber equipment discharges request; Determine that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and be the carrying of non-acquiescence QoS; Mobility Management Entity is initiated deexcitation and attaching process;

Or, determine that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and be the carrying of non-acquiescence QoS; Mobility Management Entity notice packet data network gateway initiates to revise to described carrying;

Or, when subscriber equipment enters E-UTRAN, determine on Packet Data Network connects, to be not used in the mark that indicates default bearing; Mobility Management Entity determines that according to strategy one of them is carried as default bearing.

2. the method for claim 1 is characterized in that, described Mobility Management Entity is initiated deexcitation and attaching process, is specially:

Mobility Management Entity is initiated deexcitation, and indication deexcitation type is reattachment in deexcitation;

Subscriber equipment is initiated attaching process after finishing deexcitation.

3. the method for claim 1 is characterized in that, described packet data network gateway initiates to revise to described carrying, is specially:

Packet data network gateway initiates to revise to described carrying according to acquiescence QoS.

4. the method for claim 1 is characterized in that, when Mobility Management Entity determines that according to strategy one of them is carried as default bearing, further comprises:

The link bearing identification is accorded with the value of the grouping system bearing identification of the evolution that is designated as this carrying.

5. a subscriber equipment switches the processing unit that the back acquiescence connects between system, it is characterized in that, comprising:

The tracing section updating module is used for after subscriber equipment enters E-UTRAN by GPRS network, carries out the subscriber equipment tracing section updating, and described subscriber equipment establishes block data protocol context between GPRS network;

Acquiescence connection processing module is used for after the tracing section updating module is carried out tracing section updating, and making Mobility Management Entity is that subscriber equipment is set up the acquiescence connection;

Wherein, described acquiescence connection processing module comprises: first determining unit and the first connection processing unit, perhaps comprise second determining unit and the second connection processing unit, and perhaps comprise the 3rd determining unit and the 3rd connection processing unit;

First determining unit, be used for after Mobility Management Entity receives the bearing resource release request of described subscriber equipment, determine that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and be the carrying of non-acquiescence QoS, then trigger the first connection processing unit;

The first connection processing unit is used for being triggered Mobility Management Entity and initiating deexcitation and attaching process by after the triggering of first determining unit;

Second determining unit is used for determining that described carrying is the unique carrying that the unique Packet Data Network of described subscriber equipment connects, and is the carrying of non-acquiescence QoS, then triggers the second connection processing unit;

The second connection processing unit is used for by after the triggering of second determining unit, triggers Mobility Management Entity notice packet data network gateway described carrying is initiated to revise;

The 3rd determining unit is used for when subscriber equipment enters E-UTRAN, determines to be not used in the mark that indicates default bearing on Packet Data Network connects, and then triggers the 3rd connection processing unit;

The 3rd connection processing unit is used for by after the triggering of the 3rd determining unit; Trigger Mobility Management Entity and determine that according to strategy one of them is carried as default bearing.

6. device as claimed in claim 5 is characterized in that, the described first connection processing unit comprises:

The deexcitation subelement is used to trigger Mobility Management Entity and initiates deexcitation, and indication deexcitation type is reattachment in deexcitation;

Adhere to subelement, be used for after finishing the subscriber equipment deexcitation, initiating attaching process.

7. device as claimed in claim 5 is characterized in that, the described second connection processing subelement comprises:

Obtain subelement, be used to obtain acquiescence QoS;

Revise subelement, be used to trigger packet data network gateway and described carrying initiated to revise according to obtaining the acquiescence QoS that subelement obtains.

8. device as claimed in claim 5 is characterized in that, described acquiescence connection processing module further comprises:

The indication subelement is used for the link bearing identification being accorded with the value of the grouping system bearing identification of the evolution that is designated as this carrying when the triggering Mobility Management Entity determines that according to strategy one of them is carried as default bearing.

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