CN101877841B

CN101877841B - Method, system and network equipment for realizing urgent services

Info

Publication number: CN101877841B
Application number: CN200910083260.9A
Authority: CN
Inventors: 周汉; 吴问付; 孙晓姬; 王珊珊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2014-09-03
Anticipated expiration: 2029-04-28
Also published as: CN101877841A; WO2010124644A1

Abstract

The embodiment discloses a method, a system and network equipment for realizing urgent services. The method comprises: receiving a switching request from terminal equipment UICC less UE without signing data; making sure that UICC less UE switches between a 3GPP (3rd Generation Partner Project) network and a non-3GPP (3rd Generation Partner Project) network in the process of performing urgent services; and resuming the Packet Data Network (PDN) connection of UICC less UE for urgent services according to the obtained information of the PDN connection of UICC less UE. The technical scheme can prevent interruptions when UICC less UE switches between the 3GPP (3rd Generation Partner Project) network and the non-3GPP (3rd Generation Partner Project) network.

Description

Urgency traffic implementation method, System and Network equipment

Technical field

The present invention relates to network communications technology field, be specifically related to urgency traffic implementation method, urgency traffic is realized System and Network equipment.

Background technology

UE (subscriber equipment) is when 3GPP network or Non-3GPP (non-3GPP) network attachment, conventionally need to be from HSS (HomeSubscriber Service, attribution assigned user server) locate to obtain the subscription data of UE, for example the MME in 3GPP network (Mobility Management Entity, Mobility Management Entity) obtains the subscription data of UE from HSS.Yet, UICCless UE (subscriber equipment of default subscription data), when 3GPP network attachment or Non-3GPP network attachment, does not obtain the subscription data of UE, now from HSS, UICC less UE is merely able to carry out urgency traffic, as emergence call service.

In realizing process of the present invention, inventor finds: when UICC less UE carries out urgency traffic (as emergence call service), if UICC less UE moves between 3GPP network or Non-3GPP network, can cause urgency traffic to interrupt.Below to UICC less UE from 3GPP Network Mobility to Non-3GPP network and UICC less UE occur that the phenomenon that emergence call service interrupts describes from Non-3GPP Network Mobility to 3GPP network development process.

In the situation that UICC less UE is attached to 3GPP network, the urgent APN that MME carries in adhering to request according to UICC less UE (Access Point Name, APN) information is that UICC less UE selects a PDN GW (PacketData Network Gateway, and set up PDN and connect grouped data network gateway).Because UICC less UE does not have IMSI (international mobile subscriber identity, international mobile subscriber identity) information, therefore, MME cannot select a HSS for UICC less UE, also just cannot be by the PDN GW information registering of above-mentioned selection in HSS.Afterwards, UICC less UE moves in Non-3GPP network, because cannot obtaining the PDN setting up for the urgent call of UICC lessUE in 3GPP network, Non-3GPP network connects selected PDN GW information, therefore, the PDN that Non-3GPP network also just cannot recover to set up for the urgent call of UICC less UE in 3GPP network connects, thereby causes emergence call service to interrupt.

In like manner, in the situation that UICC less UE is attached to Non-3GPP network, because Non-3GPP network also cannot be that UICCless UE selects a HSS, also just cannot be by for the selected PDN GW of urgent call information registering be in HSS.Afterwards, this UICC less UE moves in 3GPP network, because cannot obtaining the PDN setting up for the urgent call of UICC less UE in Non-3GPP network, MME connects selected PDN GW information, therefore, the PDN that MME also just cannot recover to set up for the urgent call of UICCless UE in Non-3GPP network connects, thereby causes emergence call service to interrupt.

Summary of the invention

Embodiment of the present invention provides a kind of urgency traffic implementation method, System and Network equipment, can avoid the disruption of the urgency traffic of UICC less UE.

The urgency traffic implementation method that embodiment of the present invention provides, comprising:

Reception does not have the handover request of the terminal equipment UICC less UE of subscription data;

Determine that described UICC less UE, in the process of carrying out urgency traffic, the switching between 3GPP network and non-3GPP network has occurred;

The PDN that the information connecting according to the packet data network PDN of the described UICC less UE obtaining is recovered the urgency traffic of described UICC less UE connects.

A kind of urgency traffic that embodiment of the present invention provides is realized system, comprising:

The first mobile management entity, the packet data network PDN setting up for the urgency traffic for UICC less UE connects, and sends the described PDN of foundation connect required information to storage network element;

The second mobile management entity, for receiving described UICC less UE handover request, determines that described UICC less UE, in the process of carrying out urgency traffic, the switching between 3GPP network and non-3GPP network has occurred; The PDN that the information connecting according to the PDN of the described UICC lessUE obtaining is recovered described UE connects.

A kind of network equipment that embodiment of the present invention provides, comprising:

Set up module, for set up packet data network PDN for the urgency traffic of UICC less UE, connect;

Sending module, connects for the PDN for described foundation, sends the described PDN of foundation connect required information to storage network element.

Receiver module, for receiving the handover request of cutting UICC less UE;

Judge module, for determining that described UICC less UE, in the process of carrying out urgency traffic, the switching between 3GPP network and non-3GPP network has occurred;

Recover module, the PDN that recovers the urgency traffic of described UICC less UE for the information connecting according to the packet data network PDN of the described UICC less UE obtaining connects.

Description by technique scheme is known, by in predetermined network element place storage for the urgency traffic of UICC less UE and the packet data network PDN that success is set up connects the corresponding PDN that sets up and connects information needed, thereby while moving between 3GPP network and non-3GPP network in UICC less UE carries out urgency traffic process, can from predetermined network element, obtain and set up PDN connection information needed, further, can utilize this information of obtaining to carry out PDN and connect recovery; Finally avoid the disruption of the urgency traffic of UICC lessUE, improved the reliability of urgency traffic.

Accompanying drawing explanation

Fig. 1 is the urgency traffic implementation method flow chart of the embodiment of the present invention one;

Fig. 2 a is that the UICC less UE of the embodiment of the present invention two is in 3GPP network insertion and initiate the flow chart of emergence call service;

Fig. 2 b is that the UICC less UE of the embodiment of the present invention four is in 3GPP network insertion and initiate the flow chart of emergence call service;

Fig. 3 a be the UICC less UE of the embodiment of the present invention two in carrying out emergency calling process, from 3GPP Network Mobility, to non-3GPP network, initiation type of attachment is the attachment flow figure of Handover (switching);

Fig. 3 b be the UICC less UE of the embodiment of the present invention four in carrying out emergency calling process, from 3GPP Network Mobility, to non-3GPP network, initiation type of attachment is the attachment flow figure of Handover (switching);

Fig. 4 a is that the UICC less UE of the embodiment of the present invention three is in non-3GPP network insertion and initiate the flow chart of emergence call service;

Fig. 4 b is that the UICC less UE of the embodiment of the present invention five is in non-3GPP network insertion and initiate the flow chart of emergence call service;

Fig. 5 a be the UICC less UE of the embodiment of the present invention three in carrying out emergency calling process, from non-3GPP Network Mobility, to 3GPP network, initiation type of attachment is the attachment flow figure of Handover (switching);

Fig. 5 b be the UICC less UE of the embodiment of the present invention five in carrying out emergency calling process, from non-3GPP Network Mobility, to 3GPP network, initiation type of attachment is the attachment flow figure of Handover (switching);

Fig. 6 is that the emergence call service of the embodiment of the present invention ten is realized system schematic;

Fig. 7 is the network equipment structural representation of the embodiment of the present invention 11;

Fig. 8 A, B and C are the structural representations of the sending module of the embodiment of the present invention 11;

Fig. 9 is the network equipment schematic diagram of the embodiment of the present invention 12;

Figure 10 A, B are the structural representations of the recovery module of the embodiment of the present invention 12.

Embodiment

Below in conjunction with accompanying drawing, various embodiments of the present invention are described.

Embodiment mono-, urgency traffic implementation method.The present embodiment and following each embodiment all take that urgency traffic describes as emergence call service as example, and the urgency traffic of other types and the implementation procedure of emergence call service are similar, no longer repeat specification.The flow process of the implementation method of emergence call service as shown in Figure 1.

Step 100, for the urgent call of UICC less UE and the PDN that success is set up connects, mobile management entity sends and sets up PDN and connect required information to storage network element.Mobile management entity is responsible for obtaining the network equipment of setting up PDN connection information needed.For example, mobile management entity is the MME in 3GPP network; Again for example, mobile management entity is Mobile Access Gateway in non-3GPP network etc.

It can be to carry out in the initial attaching process of urgent call at UICC less UE that the PDN that above-mentioned success is set up connects, the PDN successfully setting up for the urgent call of UICCless UE connects, also can be to carry out in the 3GPP network and the switching attaching process between non-3GPP network of urgent call at UICC less UE, the PDN successfully recovering for the urgent call of UICC less UE connects.

The above-mentioned PDN of foundation connects information needed and comprises: APN and PDN GW information.PDN GW information is as PDN GW sign or PDN GW address etc.

Above-mentioned storage network element can be UICC less UE, can be also attribution assigned user server.When storage network element is attribution assigned user server, this attribution assigned user server can be the attribution assigned user server of default configuration in mobile management entity, can be also the attribution assigned user server that mobile management entity is selected according to the IMSI of UICC less UE.In addition, when storage network element is attribution assigned user server, in attribution assigned user server, can store the corresponding relation of IMSI and APN and PDN GW information, also (international mobile equipment identification number, IMEI) with the corresponding relation of APN and PDN GW information can to store International Mobile EquipmentIdentifier.IMSI is wherein connected the corresponding PDN of foundation connection information needed with IMEI for searching the PDN successfully setting up.

In the situation that attribution assigned user server is the attribution assigned user server that mobile management entity is selected according to IMSI, mobile management entity need to distribute IMSI for carrying out the UICC less UE of urgent call.Mobile management entity can carry out in initial attaching process for carrying out urgent call at UICCless UE, for this UICC less UE distributes IMSI.

If mobile management entity is UICC less, UE has distributed IMSI, mobile management entity should be notified the IMSI of distribution the UE to UICC less, afterwards, when UICC less UE adheres to request owing to moving between 3GPP network and non-3GPP network to mobile management entity transmission, should in adhering to request, carry the IMSI that mobile management entity is its distribution.Like this, at follow-up PDN, connect in Recovery processing process, mobile management entity can be selected attribution assigned user server according to adhering to the IMSI carrying in request, and sets up PDN connection information needed to the attribution assigned user server request of selecting.Now, in the attribution assigned user server of selection, can store the corresponding relation of IMSI and APN and PDN GW information.

In the situation that attribution assigned user server is the attribution assigned user server that mobile management entity is selected according to IMSI, owing to not having the CAMEL-Subscription-Information of UICC less UE in attribution assigned user server, therefore, according to common processing mode, attribution assigned user server is after receiving IMSI, APN and PDN GW information, can not carry out stores processor, but also can return to error message to mobile management entity.In order to make attribution assigned user server, can correctly store IMSI, APN and PDN GW information, mobile management entity is when carrying the message of IMSI, APN and PDN GW information to attribution assigned user server transmission, can in message, carry indication information, to indicate attribution assigned user server in the situation that there is no the CAMEL-Subscription-Information of UICC less UE, also should store IMSI, APN and PDN GW information.

In the situation that the attribution assigned user server that attribution assigned user server is default configuration, mobile management entity can not distribute IMSI for carrying out the UICC less UE of urgent call.No matter be that UICC less UE carries out in the initial attaching process of urgent call, or carry out in the switching attaching process of urgent call at UICC less UE, mobile management entity all should be sent as to default attribution assigned user server PDN that the urgent call of UICC less UE successfully sets up and connect the corresponding PDN of foundation and connect information needed, so that the PDN that success is set up connects the corresponding PDN of foundation, connects information needed and can be stored in default attribution assigned user server.Now, in default attribution assigned user server, can store the corresponding relation of IMEI and APN and PDN GW information.

In the situation that the attribution assigned user server that attribution assigned user server is default configuration, same, owing to not having the CAMEL-Subscription-Information of UICC less UE in attribution assigned user server, therefore, according to common processing mode, attribution assigned user server, after receiving IMEI, APN and PDN GW information, can not carry out stores processor, but also can return to error message to mobile management entity.In order to make attribution assigned user server, can correctly store IMEI, APN and PDN GW information, mobile management entity is when carrying the message of IMEI, APN and PDN GW information to attribution assigned user server transmission, can in message, carry indication information, to indicate attribution assigned user server in the situation that there is no the CAMEL-Subscription-Information of UICC less UE, also should store IMEI, APN and PDN GW information.It should be noted that, in the message that mobile management entity sends, also can not carry indication information, now, when attribution assigned user server carries IMEI in judging message, the IMEI in message, APN and PDN GW information are carried out to stores processor.

In the situation that storage network element is UICC less UE, mobile management entity should to storing network element transmission for the urgent call of UICC less UE, the PDN that success is set up connects corresponding APN and PDN GW information.Now, mobile management entity can not be that UICC less UE distributes IMSI.Afterwards, when UICC less UE adheres to request owing to moving between 3GPP network and non-3GPP network to mobile management entity transmission, should in adhering to request, carry IMEI, APN and PDN GW information.IMEI wherein can carry out when PDN connects recovery operation using for PDN GW.It should be noted that, APN and PDN GW information also can send to mobile management entity by other message except adhering to request.

Step 110, mobile management entity are adhered to after request receiving, utilization is adhered to the request information of carrying and is judged that this adheres to request and is whether: UICC less UE carries out between 3GPP network and non-3GPP network, moving the request of adhering to sending in emergency calling process, for example mobile management entity judges the type that sends this UE type of adhering to request and adhere to request, take determine send adhere to request UE whether as UICC less UE, whether this to adhere to request be the request of adhering to of switching type.The request of adhering to of the switching type here refers at UE and carries out in emergency calling process, because UE moves between 3GPP network and non-3GPP network to the request of adhering to of mobile management entity transmission.

Above-mentioned judgment result is that send the UE adhere to request be UICC less UE and this adhere to request for UE, carry out emergency calling process in the situation that move the request of adhering to sending between 3GPP network and non-3GPP network, to step 120, otherwise, to step 130.

Mobile management entity can adopt existing method to judge that UE type and the type of adhering to request judge, concrete deterministic process no longer describes in detail at this.

Step 120, mobile management entity are obtained and are sent the PDN that sets up corresponding to UE that adheres to request and connect information needed from storage network element, and connect and carry out Recovery processing operation sending the PDN of the urgent call of the UE that adheres to request according to this information.

When storage network element is UICC less UE, mobile management entity can be from the message that UICC less UE sends (as adhering in request) get IMEI, APN and PDN GW information, afterwards, mobile management entity can utilize APN and PDN GW information to determine and set up the PDN GW that PDN is connected, then, the PDN GW that mobile management entity indication is determined connects and carries out Recovery processing (PDN corresponding to IMEI connected and carry out hand-off process) PDN corresponding to IMEI.

When storage network element is attribution assigned user server, mobile management entity can be from the message that UICC less UE sends (as adhering in request) get IMEI or IMSI.If that carry in the message that UICC less UE sends is IMSI, mobile management entity can be selected attribution assigned user server according to IMSI, afterwards, mobile management entity is to corresponding APN and the PDN GW information of attribution assigned user server request IMSI of selecting, like this, the APN that mobile management entity can utilize request to obtain determines and sets up the PDN GW that PDN is connected with PDN GW information, then, the PDNGW that mobile management entity indication is determined connects and carries out Recovery processing PDN corresponding to IMSI.If that carry in the message that UICC less UE sends is IMEI, mobile management entity can be to APN corresponding to the attribution assigned user server request IMEI of default setting and PDN GW information, like this, the APN that mobile management entity can utilize request to obtain determines and sets up the PDN GW that PDN is connected with PDN GW information, then, the PDN GW that mobile management entity indication is determined connects and carries out Recovery processing PDN corresponding to IMEI.

The emergence call service implementation method of step 130, the present embodiment finishes.Mobile management entity can carry out follow-up processing operation according to the existing handling process to urgent call.

It should be noted that, successfully PDN is being connected and carried out after Recovery processing, the PDN after Recovery processing must be connected to the corresponding PDN connection information needed of setting up and send to storage network element, return to step 100, and continue to wait for to receive and adhere to request.In addition, at step 130 place, mobile management entity can in the situation that judge receive adhere to request for UICC less UE be carry out that urgent call sends initially adhere to request, be that UICC less UE distributes IMSI, and according to this IMSI, carry out follow-up PDN and connect process of establishing.After PDN successful connection is set up, the PDN connection information needed of setting up that the PDN that mobile management entity is set up this success connects correspondence sends to storage network element, returns to step 100, and continues to wait for the request of adhering to that receives subscriber equipment transmission.

It should be noted that in addition, type of attachment in above-described embodiment one for switch to adhere to request be a kind of of handover request, type of attachment in this embodiment mono-for the request of adhering to of switching can be also the handover request of other form, if PDN connection type is the PDN connection request that switches etc.The type of attachment of recording in following embodiment is that the request of adhering to of switching can be also the handover request of other form, no longer for the adhering to request in following each embodiment, carries out repeat specification one by one below.Also have, step 100 in embodiment mono-, 110 and 120 operation can be carried out by same mobile management entity, also can have two different mobile management entities to carry out; In the situation that being carried out by same mobile management entity, the UICC less UE in step 100 and the UICC less UE in step 110 and 120 do not refer to same UICC less UE; In the situation that being carried out by two mobile management entities, the UICC less UE in step 100 and the UICC less UE in step 110 and 120 refer to same UICC lessUE.

The description of above-described embodiment one is known, by in predetermined network element place storage for the urgent call of UICC less UE and the packet data network PDN that success is set up connects the corresponding PDN that sets up and connects information needed, thereby while moving between 3GPP network and non-3GPP network in UICC less UE carries out emergency calling process, can from predetermined network element, obtain and set up PDN connection information needed, further, can utilize this information of obtaining to carry out PDN and connect recovery; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment bis-, UICC less UE access and initiate emergence call service at 3GPP, mobile management network element is IMSI of UICC lessUE dynamic assignment, mobile management network element is selected an attribution assigned user server according to the IMSI distributing, and the PDN that the urgent call for UICC less UE is set up connects corresponding PDN GW information registering in the attribution assigned user server of selecting, after this, UICC less UE from 3GPP Network Mobility to non-3GPP network; In these cases, emergence call service realization flow is as shown in accompanying drawing 2a and accompanying drawing 3a.

Fig. 2 a shows UICC less UE in 3GPP network insertion and initiates the flow process of emergence call service, and UICC less UE is in the initial attachment flow of 3GPP network.

Step 1, UE send Attach Request message to mobile management network element, carry the information of urgent call in this Attach Request message.

Step 2, mobile management network element carry in UICC less UE and Attach Request message after the information of urgent call judging UE, mobile management network element is IMSI of this UE dynamic assignment, mobile management network element can select an IMSI to distribute to UE from the IMSI being retained, to avoid the IMSI of this dynamic assignment and the IMSI of other normal UE to conflict mutually.Mobile management network element sends and creates default bearer request message to gateway.

Step 3, gateway send and create default bearer request message to grouped data network gateway.

Step 4, grouped data network gateway, after receiving establishment default bearer request message, return and create default bearer response message to gateway.

Step 5, gateway return and create default bearer response message to mobile management network element.

Step 6, mobile management network element return to adhere to UE accepts message, and this adheres to accepts to carry in message the IMSI that mobile management network element is UE dynamic assignment.

Step 7, UE are returned and have been adhered to message to mobile management network element receiving to adhere to after accepting message.

Step 8, mobile management network element send and upgrade bearing request message to gateway.

Step 9, gateway, after receiving renewal bearing request message, return to renewal bearing response message to mobile management network element.

Step 10, mobile management network element send notification request message to attribution assigned user server, in this notification request message, carry the PDN that promising UE successfully sets up and connect corresponding APN and PDN GW address, also carry indication information so that by APN and PDN GW address registration in attribution assigned user server.This indication information is as UICC less EMC.This indication information is called on and is being shown effectively time: this registration is because UICC less UE carries out the registration that urgent call is carried out, and attribution assigned user server should be carried out registration operation, and does not need to return error message.

Step 11, attribution assigned user server are after receiving notification request message, according to the indication information carrying in message by APN and PDN GW address registration in attribution assigned user server, as attribution assigned user server obtains IMSI, APN and PDN GW address from notification request message, and preserve the corresponding relation of IMSI information, APN and PDN GW information.Attribution assigned user server returns to push-notification-answer message to mobile management network element.

Fig. 3 a shows UICC less UE in carrying out emergency calling process, and from 3GPP Network Mobility, to non-3GPP network, initiation type of attachment is the attachment flow of Handover (switching).

Step 1, UE trigger the attachment flow of Mobile Access Gateway, and UE sends and adheres to request to Mobile Access Gateway, and this adheres to the type of attachment of carrying in request is Handover, and this adheres to and in request, carries the IMSI that mobile management network element is UE dynamic assignment.

Step 2, Mobile Access Gateway are adhered to after request receiving, judging the information, the UE that carry urgent call in adhering to request, be after UICC less UE and type of attachment are Handover, Mobile Access Gateway is selected attribution assigned user server according to adhering to the IMSI carrying in request, and utilizes IMSI to obtain APN and PDNGW sign (or PDN GW address) from the attribution assigned user server of selecting.

Step 3, Mobile Access Gateway send agent binding request message according to the APN obtaining from attribution assigned user server and PDN GW sign to grouped data network gateway.

Step 4, grouped data network gateway, after receiving agent binding request message, return to proxy binding acknowledgment messages to Mobile Access Gateway.

Step 5, Mobile Access Gateway and UE are mutual, and to notify this attachment flow of UE to be successfully completed, i.e. the PDN successful connection of UE recovers.

The description of above-described embodiment two is known, mobile management network element is by for accessing and initiate the UICC less UE dynamic assignment IMSI of emergence call service at 3GPP, thereby mobile management network element can be that UICC less UE selects attribution assigned user server according to this IMSI, mobile management network element sends indication information, APN and PDN GW information by the attribution assigned user server to selecting, and attribution assigned user server can successfully be registered APN and PDN GW information according to this indication information; Mobile management network element is by sending IMSI to UICC less UE, and UICC less UE carries out in emergency calling process when from 3GPP Network Mobility to non-3GPP network, UICC less UE sends to Mobile Access Gateway by the IMSI receiving, make Mobile Access Gateway select corresponding attribution assigned user server according to this IMSI, and obtain APN and PDN GW information from the attribution assigned user server of selecting, further, Mobile Access Gateway can utilize this information of obtaining to carry out PDN connection recovery; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment tri-, UICC less UE access and initiate emergence call service at non-3GPP, Mobile Access Gateway is IMSI of UICC lessUE dynamic assignment, Mobile Access Gateway is selected an attribution assigned user server according to the IMSI distributing, and the PDN that the urgent call for UICC less UE is set up connects corresponding PDN GW information registering in the attribution assigned user server of selecting, after this, UICC less UE from non-3GPP Network Mobility to 3GPP network; In these cases, emergence call service realization flow is as shown in accompanying drawing 4a and accompanying drawing 5a.

Fig. 4 a shows UICC less UE in non-3GPP network insertion and initiates the flow process of emergence call service, and UICC less UE is in the initial attachment flow of non-3GPP network.

Step 1, UE find and select Mobile Access Gateway in non-3GPP network.

Step 2, UE trigger the attachment flow of Mobile Access Gateway, and UE sends and adheres to request to Mobile Access Gateway, and this adheres to the information that carries urgent call in request.

Step 3, Mobile Access Gateway carry in UICC less UE and Attach Request message after the information of urgent call judging UE, Mobile Access Gateway is IMSI of this UE dynamic assignment, Mobile Access Gateway can select an IMSI to distribute to UE from the IMSI being retained, to avoid the IMSI of this dynamic assignment and the IMSI of other normal UE to conflict mutually.Mobile Access Gateway sends agent binding request message to selected grouped data network gateway, and in this agent binding request message, carrying Mobile Access Gateway is the IMSI of UICC less UE dynamic assignment.

Step 4, grouped data network gateway receive after agent binding request message, according to the IMSI carrying in agent binding request message, are that UE selects attribution assigned user server.Grouped data network gateway requires the attribution assigned user server of selecting to upgrade gateway information of packet data network (as upgraded the address of grouped data network gateway), be that grouped data network gateway sends and upgrades PDN GW address message to attribution assigned user server, in this renewal grouped data network gateway address message, carry indication information, this indication information is as UICC less EMC.This indication information is called on and is being shown effectively time: this more new registration be because UICC less UE carries out the more new registration that urgent call is carried out, attribution assigned user server should be carried out more new registration operation, and does not need to return error message.Attribution assigned user server is after receiving renewal PDN GW address message, according to the indication information carrying in message by APN and PDN GW address registration in attribution assigned user server, as attribution assigned user server obtains IMSI, APN and PDN GW address from upgrade PDN GW address message, and upgrade the corresponding relation of preserving IMSI information, APN and PDN GW information.

Step 5, grouped data network gateway send proxy binding acknowledgment messages to Mobile Access Gateway.

Step 6, Mobile Access Gateway, after receiving proxy binding acknowledgment messages, carry out information interaction with UE, and to notify this initial attachment flow of UE to be successfully completed, PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send and to have adhered to message to UE, and this has adhered to and in message, carries the IMSI that Mobile Access Gateway is UE dynamic assignment.

Fig. 5 a shows UICC less UE in carrying out emergency calling process, and from non-3GPP Network Mobility, to 3GPP network, initiation type of attachment is the attachment flow of Handover (switching).

Step 1, UE send Attach Request message to mobile management network element, and this adheres to the type of attachment of carrying in request is Handover, and this adheres to and in request, carries the IMSI that Mobile Access Gateway is UE dynamic assignment.

Step 2, mobile management network element are after UICC less UE and type of attachment are Handover judging the information, the UE that carry urgent call in adhering to request, mobile management network element is selected attribution assigned user server according to adhering to the IMSI carrying in request, and utilizes IMSI to obtain APN and PDN GW sign (or PDN GW address) from the attribution assigned user server of selecting.

Step 3, mobile management network element send and create default bearer request message to gateway.

Step 4, gateway send and create default bearer request message to grouped data network gateway.

Step 5, grouped data network gateway, after receiving establishment default bearer request message, return and create default bearer response message to gateway.

Step 6, gateway return and create default bearer response message to mobile management network element.

Step 7, mobile management network element, after receiving establishment default bearer response message, return to adhere to UE and accept message.

Step 8, UE are returned and have been adhered to message to mobile management network element receiving to adhere to after accepting message.

Step 9, mobile management network element send and upgrade bearing request message to gateway.

Step 10, gateway, after receiving renewal bearing request message, return to renewal bearing response message to mobile management network element.

The description of above-described embodiment three is known, Mobile Access Gateway is by for accessing and initiate the UICC less UE dynamic assignment IMSI of emergence call service at non-3GPP, thereby Mobile Access Gateway can be that UICC less UE selects attribution assigned user server according to this IMSI, Mobile Access Gateway sends indication information, APN and PDN GW information by the attribution assigned user server to selecting, and attribution assigned user server can successfully be registered APN and PDN GW information according to this indication information; Mobile Access Gateway is by sending IMSI to UICC less UE, and UICC less UE carries out in emergency calling process when from non-3GPP Network Mobility to 3GPP network, UICC less UE sends to mobile management network element by the IMSI receiving, make mobile management network element select corresponding attribution assigned user server according to this IMSI, and obtain APN and PDN GW information from the attribution assigned user server of selecting, further, mobile management network element can utilize this information of obtaining to carry out PDN connection recovery; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment tetra-, UICC less UE access and initiate emergence call service at 3GPP, mobile management network element is not for UICCless UE distributes IMSI, mobile management network element is being selected after grouped data network gateway for UE, APN and gateway information of packet data network are sent to UE, after this, UICC less UE is from 3GPP Network Mobility to non-3GPP network, and UE offers mobile management network element by the APN receiving and gateway information of packet data network.Below in conjunction with accompanying drawing 2b and accompanying drawing 3b, embodiment tetra-is described.

Fig. 2 b shows UICC less UE in 3GPP network insertion and initiates the flow process of emergence call service, and UICC less UE is in the initial attachment flow of 3GPP network.

Step 2, mobile management network element carry in UICC less UE and Attach Request message after the information of urgent call judging UE, and mobile management network element sends and creates default bearer request message to gateway.

Step 6, mobile management network element return to adhere to UE accepts message, and this adheres to accepts to carry in message APN and mobile management network element is the gateway information of packet data network that UE selects.

Fig. 3 b shows UICC less UE in carrying out emergency calling process, and from 3GPP Network Mobility, to non-3GPP network, initiation type of attachment is the attachment flow of Handover (switching).

Step 1, UE trigger the attachment flow of Mobile Access Gateway, be that UE sends and adheres to request to Mobile Access Gateway, this adheres to the type of attachment of carrying in request is Handover, and this adheres to and in request, carries APN and the gateway information of packet data network that mobile management network element sends to UE.

Step 2, Mobile Access Gateway are adhered to after request receiving, and carry APN information and PDNGW information judging in adhering to request, and Mobile Access Gateway sends agent binding request message according to APN information and PDN GW information to grouped data network gateway.

Step 3, grouped data network gateway, after receiving agent binding request message, return to proxy binding acknowledgment messages to Mobile Access Gateway.

Step 4, Mobile Access Gateway and UE are mutual, and to notify this attachment flow of UE to be successfully completed, i.e. the PDN successful connection of UE recovers.

The description of above-described embodiment four is known, mobile management network element is by selecting APN and PDN GW for access and initiate the UICC less UE of emergence call service at 3GPP, and the APN of selection and PDN GW information are sent to UICC less UE, UICCless UE is carried out in emergency calling process when from 3GPP Network Mobility to non-3GPP network, the APN receiving and PDNGW information can be sent to Mobile Access Gateway, make Mobile Access Gateway can from the message receiving, obtain APN and PDN GW information, thereby Mobile Access Gateway can utilize this information of obtaining to carry out PDN connects recovery, finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment five, UICC less UE access and initiate emergence call service at non-3GPP, Mobile Access Gateway is not for UICCless UE distributes IMSI, Mobile Access Gateway is being selected after grouped data network gateway for UE, APN and gateway information of packet data network are sent to UE, after this, UICC less UE is from non-3GPP Network Mobility to 3GPP network, and UE offers Mobile Access Gateway by the APN receiving and gateway information of packet data network.Still 4b and accompanying drawing 5b describe embodiment five by reference to the accompanying drawings below.

Fig. 4 b shows UICC less UE in non-3GPP network insertion and initiates the flow process of emergence call service, and UICC less UE is in the initial attachment flow of non-3GPP network.

Step 1, UE find and select Mobile Access Gateway in non-3GPP network.

Step 2, UE trigger the attachment flow of Mobile Access Gateway, and UE sends and adheres to request to Mobile Access Gateway, and this adheres to information and the IMEI that carries urgent call in request.

Step 3, Mobile Access Gateway carry in UICC less UE and Attach Request message after the information of urgent call judging UE, Mobile Access Gateway is this UE selection grouped data network gateway, and Mobile Access Gateway sends agent binding request message to the grouped data network gateway of selecting.In this agent binding request message, carry IMEI.

Step 4, grouped data network gateway send proxy binding acknowledgment messages to Mobile Access Gateway.

Step 5, Mobile Access Gateway, after receiving proxy binding acknowledgment messages, carry out information interaction with UE, and to notify this initial attachment flow of UE to be successfully completed, PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send and to have adhered to message to UE, and this has adhered to and in message, carries APN and Mobile Access Gateway is the gateway information of packet data network that UE selects.UE should be according to being attached APN and the PDN GW information that completes its preservation of information updating of carrying in message.

Fig. 5 b shows UICC less UE in carrying out emergency calling process, and from non-3GPP Network Mobility, to 3GPP network, initiation type of attachment is the attachment flow of Handover (switching).

Step 1, UE send Attach Request message to mobile management network element, and this adheres to the type of attachment of carrying in request is Handover, and this adheres to and in request, carries IMEI, APN and Mobile Access Gateway is the gateway information of packet data network that UE selects.

Step 2, mobile management network element carry APN information in adhering to request and gateway information of packet data network, UE are after UICC less UE and type of attachment are Handover judging, and mobile management network element sends and creates default bearer request message to gateway.

Step 6, mobile management network element, after receiving establishment default bearer response message, return to adhere to UE and accept message.

The description of above-described embodiment five is known, Mobile Access Gateway is by selecting APN and PDN GW for access and initiate the UICC less UE of emergence call service at non-3GPP, and the APN of selection and PDN GW information are sent to UICC less UE, UICCless UE is carried out in emergency calling process when from non-3GPP Network Mobility to 3GPP network, the APN receiving and PDNGW information can be sent to mobile management network element, make mobile management network element can from the message receiving, obtain APN and PDN GW information, thereby mobile management network element can utilize this information of obtaining to carry out PDN connects recovery, finally avoid the disruption of the emergence call service of UICC lessUE, improved the reliability of emergence call service.

Embodiment six, UICC less UE is in 3GPP network insertion and initiate emergence call service, mobile management network element is not for UICCless UE distributes IMSI, mobile management network element is that UE selects after grouped data network gateway, and the PDN that the urgent call for UICC less UE is set up connects corresponding PDN GW information registering in default attribution assigned user server.After this, UICCless UE from 3GPP Network Mobility to non-3GPP network.Mobility IAD obtains APN and PGW GW information from default attribution assigned user server, with the PDN to urgent call, connects and recovers.Still 2a and accompanying drawing 3a describe embodiment six by reference to the accompanying drawings below.

Step 1, UE send Attach Request message to mobile management network element, carry the information of urgent call in this Attach Request message.In this Attach Request message, also carry IMEI.

Step 6, mobile management network element return to adhere to UE accepts message.

Step 10, mobile management network element send notification request message to default attribution assigned user server, in this notification request message, carry the PDN that promising UE successfully sets up and connect corresponding APN and PDN GW address, also carry indication information so that by APN and PDN GW address registration in attribution assigned user server.This indication information is as UICC less EMC.This indication information is called on and is being shown effectively time: this registration is because UICC less UE carries out the registration that urgent call is carried out, and attribution assigned user server should be carried out registration operation, and does not need to return error message.

Step 11, default attribution assigned user server are after receiving notification request message, according to the indication information carrying in message by APN and PDN GW address registration in attribution assigned user server, as attribution assigned user server obtains IMEI, APN and PDN GW address from notification request message, and preserve the corresponding relation of IMEI information, APN and PDN GW information.Attribution assigned user server returns to push-notification-answer message to mobile management network element.

Step 1, UE trigger the attachment flow of Mobile Access Gateway, and UE sends and adheres to request to Mobile Access Gateway, and this adheres to the type of attachment of carrying in request is Handover, and this adheres to and in request, carries IMEI.

Step 2, Mobile Access Gateway are adhered to after request receiving, judging the information, the UE that carry urgent call in adhering to request, be after UICC less UE and type of attachment are Handover, Mobile Access Gateway utilizes IMEI to obtain APN and PDN GW sign (or PDN GW address) from default attribution assigned user server.

Step 3, Mobile Access Gateway send agent binding request message according to the APN obtaining from default attribution assigned user server and PDN GW sign to grouped data network gateway.

The description of above-described embodiment six is known, mobile management network element is by selecting APN and PDN GW for access and initiate the UICC less UE of emergence call service at 3GPP, and send indication information, APN and PDNGW information to default attribution assigned user server, attribution assigned user server can successfully be registered APN and PDN GW information according to this indication information; Thereby UICC less UE carries out in emergency calling process when from 3GPP Network Mobility to non-3GPP network, Mobile Access Gateway can obtain APN and PDN GW information from default attribution assigned user server, further, Mobile Access Gateway can utilize this information of obtaining to carry out PDN connection recovery; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment seven, UICC less UE is in non-3GPP network insertion and initiate emergence call service, Mobile Access Gateway is not for UICCless UE distributes IMSI, Mobile Access Gateway is that UE selects after grouped data network gateway, and the PDN that the urgent call for UICC less UE is set up connects corresponding PDN GW information registering in default attribution assigned user server.After this, UICCless UE from non-3GPP Network Mobility to 3GPP network.Mobile management network element obtains APN and PGW GW information from default attribution assigned user server, with the PDN to urgent call, connects and recovers.Still 4a and accompanying drawing 5a describe embodiment seven by reference to the accompanying drawings below.

Step 1, UE find and select Mobile Access Gateway in non-3GPP network.

Step 3, Mobile Access Gateway carry in UICC less UE and Attach Request message after the information of urgent call judging UE, and Mobile Access Gateway is that this UE selects grouped data network gateway.Mobile Access Gateway sends agent binding request message to selected grouped data network gateway, in this agent binding request message, carries IMEI.

Step 4, grouped data network gateway receive after agent binding request message, grouped data network gateway requires default attribution assigned user server to preserve APN and gateway information of packet data network (as upgraded the address of grouped data network gateway), be that grouped data network gateway sends and upgrades PDN GW address message to default attribution assigned user server, in this renewal grouped data network gateway address message, carry IMEI, APN and PDN GW address.Default attribution assigned user server is after receiving renewal PDN GW address message, utilize IMEI that the APN carrying in message and the renewal of PDN GW address are registered in attribution assigned user server, as attribution assigned user server obtains IMEI, APN and PDN GW address from upgrade PDN GW address message, and upgrade the corresponding relation of preserving IMEI information, APN and PDN GW information.

Step 6, Mobile Access Gateway, after receiving proxy binding acknowledgment messages, carry out information interaction with UE, and to notify this initial attachment flow of UE to be successfully completed, PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send and adhere to message to UE.

Step 1, UE send Attach Request message to mobile management network element, and this adheres to the type of attachment of carrying in request is Handover, and this adheres to the IMEI that carries UE in request.

Step 2, mobile management network element are after UICC less UE and type of attachment are Handover judging the information, the UE that carry urgent call in adhering to request, and mobile management network element obtains APN and PDN GW sign (or PDN GW address) according to adhering to the IMEI carrying in request from default attribution assigned user server.

The description of above-described embodiment seven is known, Mobile Access Gateway is by selecting APN and PDN GW for access and initiate the UICC less UE of emergence call service at non-3GPP, and send indication information, APN and PDNGW information to default attribution assigned user server, attribution assigned user server can successfully be registered APN and PDN GW information according to this indication information; Thereby UICC less UE carries out in emergency calling process when from non-3GPP Network Mobility to 3GPP network, mobile management network element can obtain APN and PDN GW information from default attribution assigned user server, further, mobile management network element can utilize this information of obtaining to carry out PDN connection recovery; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment eight, UICC less UE is in 3GPP network insertion and initiate emergence call service, and mobile management network element is not that UICCless UE distributes IMSI, and mobile management network element is that UE selects default grouped data network gateway.After this, UICC less UE from 3GPP Network Mobility to non-3GPP network.Mobile Access Gateway utilizes default grouped data network gateway that the PDN of urgent call is connected and recovered.Still 2b and accompanying drawing 3b describe embodiment eight by reference to the accompanying drawings below.

Step 3, gateway send and create default bearer request message to default grouped data network gateway.

Step 4, default grouped data network gateway create after default bearer request message receiving, and to gateway, return and create default bearer response message.

Step 2, Mobile Access Gateway are adhered to after request receiving, judging the information, the UE that carry urgent call in adhering to request, be after UICC less UE and type of attachment are Handover, Mobile Access Gateway sends agent binding request message to default grouped data network gateway.

Step 3, default grouped data network gateway, after receiving agent binding request message, return to proxy binding acknowledgment messages to Mobile Access Gateway.

The description of above-described embodiment eight is known, mobile management network element is selected default PDN GW to set up PDN by the UICC less UE for accessing and initiate emergence call service at 3GPP to connect, thereby UICC less UE carries out in emergency calling process when from 3GPP Network Mobility to non-3GPP network, Mobile Access Gateway can utilize this default PDN GW to recover PDN to connect; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment nine, UICC less UE is in non-3GPP network insertion and initiate emergence call service, and Mobile Access Gateway is not that UICCless UE distributes IMSI, and Mobile Access Gateway is that UE selects default grouped data network gateway.After this, UICC less UE from non-3GPP Network Mobility to 3GPP network.Mobile management network element utilizes default grouped data network gateway that the PDN of urgent call is connected and recovered.Still 4b and accompanying drawing 5b describe embodiment nine by reference to the accompanying drawings below.

Step 1, UE find and select Mobile Access Gateway in non-3GPP network.

Step 3, Mobile Access Gateway carry in UICC less UE and Attach Request message after urgent APN information judging UE, Mobile Access Gateway sends agent binding request message to default grouped data network gateway, in this agent binding request message, carries IMEI.

Step 4, default grouped data network gateway receive after agent binding request message, to Mobile Access Gateway, send proxy binding acknowledgment messages.

Step 5, Mobile Access Gateway, after receiving proxy binding acknowledgment messages, carry out information interaction with UE, and to notify this initial attachment flow of UE to be successfully completed, PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send and adhere to message to UE.

Step 2, mobile management network element are after UICC less UE and type of attachment are Handover judging the information, the UE that carry urgent call in adhering to request, and mobile management network element sends and creates default bearer request message to gateway.Create in default bearer request message and carry default gateway information of packet data network and IMEI.

The description of above-described embodiment nine is known, Mobile Access Gateway is selected default PDN GW to set up PDN by the UICC less UE for accessing and initiate emergence call service at non-3GPP to connect, thereby UICC less UE carries out in emergency calling process when from non-3GPP Network Mobility to 3GPP network, mobile management network element can utilize this default PDN GW to recover PDN to connect; Finally avoid the disruption of the emergence call service of UICC less UE, improved the reliability of emergence call service.

Embodiment ten, emergence call service are realized system.The structural representation of this system as shown in Figure 6.

Emergence call service shown in Fig. 6 is realized system and is comprised: the first mobile management entity 610 and the second mobile management entity 620.This system can also comprise storage network element 630.

For the urgent call of UICC less UE and the packet data network PDN that success is set up connects, the first mobile management entity 610 sends and sets up PDN and connect information needed to storage network element.It can be to carry out in the initial attaching process of urgent call at UICC less UE that the PDN that above-mentioned success is set up connects, the PDN successfully setting up for the urgent call of UICC less UE connects, also can be to carry out in the 3GPP network and the switching attaching process between non-3GPP network of urgent call at UICC less UE, the PDN successfully recovering for the urgent call of UICCless UE connects.The above-mentioned PDN of foundation connects information needed and comprises: APN and PDN GW information.PDN GW information is as PDN GW sign or PDN GW address etc.

If UICC less UE is in carrying out emergency calling process, between 3GPP network and non-3GPP network, move, the second mobile management entity 620 can receive the handover request of subscriber equipment, the information that the second mobile management entity 620 judgement handover request are carried, judgment result is that this handover request is between 3GPP network and non-3GPP network, to move after the handover request sending during UICC less UE carries out emergency calling process, the second mobile management entity 620 connects and carries out Recovery processing the PDN of the urgent call of this subscriber equipment according to the PDN connection information needed of setting up corresponding to the subscriber equipment obtaining from storage network element 630.

If UICC less UE is in carrying out emergency calling process, between 3GPP network and non-3GPP network, move, thereby need to carry out PDN, connect switching, the first mobile management entity 610 is arranged in the source network of switching, and the second mobile management entity 620 is arranged in the objective network of switching.

In UICC less UE carrying out emergency calling process, from 3GPP Network Mobility to non-3GPP network, the first mobile management entity 610 is the mobile management network element in 3GPP network, and the second mobile management entity 620 is the Mobile Access Gateway in non-3GPP network.

In UICC less UE carrying out emergency calling process, from non-3GPP Network Mobility to 3GPP network, the first mobile management entity 610 is the Mobile Access Gateway in non-3GPP network, and the second mobile management entity 620 is the mobile management network element in 3GPP network.

The PDN that sets up that storage network element 630 reception the first mobile management entities 610 send connects information needed, and storage.The storage network element 630 here can be UICC less UE, can be also attribution assigned user server.In the situation that storage network element 630 is attribution assigned user server, this attribution assigned user server can be the attribution assigned user server of default configuration in the first mobile management entity 610 and the second mobile management entity 620, can be also the attribution assigned user server that the first mobile management entity 610 and the second mobile management entity 620 are selected according to the IMSI of UICC less UE.In addition, when storage network element 630 is attribution assigned user server, in attribution assigned user server, can store the corresponding relation of IMSI and APN and PDN GW information, also can store the corresponding relation of IMEI and APN and PDN GW information.IMSI is wherein connected the corresponding PDN of foundation connection information needed with IMEI for searching the PDN successfully setting up.

In the situation that attribution assigned user server is the attribution assigned user server that the first mobile management entity 610 is selected according to IMSI, indicating that the first mobile management entity 610 need to distribute IMSI for carrying out the UICC less UE of urgent call.The first mobile management entity 610 can carry out in initial attaching process for carrying out urgent call at UICC less UE, for this UICCless UE distributes IMSI.

If the first mobile management entity 610 has distributed IMSI for UICC less UE, the first mobile management entity 610 should be notified the IMSI of distribution the UE to UICC less, afterwards, when UICC less UE adheres to request owing to moving between 3GPP network and non-3GPP network to the second mobile management entity 620 transmissions, should in adhering to request, carry the IMSI that mobile management entity is its distribution.Like this, at follow-up PDN, connect in Recovery processing process, the second mobile management entity 620 can be selected attribution assigned user server (storing network element 630) according to adhering to the IMSI carrying in request, and sets up PDN connection information needed to the attribution assigned user server request of selecting.Now, in the attribution assigned user server of selection, can store the corresponding relation of IMSI and APN and PDN GW information.

In the situation that the attribution assigned user server that attribution assigned user server (storing network element 630) is selected according to IMSI for mobile management entity, owing to not having the CAMEL-Subscription-Information of UICC less UE in attribution assigned user server, therefore, according to common processing mode, attribution assigned user server is after receiving IMSI, APN and PDN GW information, can not carry out stores processor, but also can return to error message to mobile management entity.In order to make attribution assigned user server, can correctly store IMSI, APN and PDN GW information, the first mobile management entity 610 is when carrying the message of IMSI, APN and PDN GW information to attribution assigned user server transmission, can in message, carry indication information, to indicate attribution assigned user server in the situation that there is no the CAMEL-Subscription-Information of UICC less UE, also should store IMSI, APN and PDN GW information.

In the situation that the attribution assigned user server that attribution assigned user server is default configuration, the first mobile management entity 610 can not distribute IMSI for carrying out the UICC less UE of urgent call.No matter be that UICC less UE carries out in the initial attaching process of urgent call, or carry out in the switching attaching process of urgent call at UICC less UE, the first mobile management entity 610 all should be sent as to default attribution assigned user server PDN that the urgent call of UICC less UE successfully sets up and connect the corresponding PDN of foundation and connect information needed, so that the PDN that success is set up connects the corresponding PDN of foundation, connects information needed and can be stored in default attribution assigned user server.Now, in default attribution assigned user server, can store the corresponding relation of IMEI and APN and PDN GW information.

In the situation that the attribution assigned user server that attribution assigned user server is default configuration, same, owing to not having the CAMEL-Subscription-Information of UICC less UE in attribution assigned user server, therefore, according to common processing mode, attribution assigned user server, after receiving IMEI, the APN and PDN GW information of the first mobile management entity 610 transmissions, can not carry out stores processor, but also can return to error message to the first mobile management entity 610.In order to make attribution assigned user server, can correctly store IMEI, APN and PDN GW information, the first mobile management entity 610 is when carrying the message of IMEI, APN and PDN GW information to attribution assigned user server transmission, can in message, carry indication information, to indicate attribution assigned user server in the situation that there is no the CAMEL-Subscription-Information of UICC less UE, also should store IMEI, APN and PDN GW information.It should be noted that, in the message that the first mobile management entity 610 sends, also can not carry indication information, now, when attribution assigned user server carries IMEI in judging message, the IMEI in message, APN and PDN GW information are carried out to stores processor.

In the situation that storage network element 630 is UICC less UE, the first mobile management entity 610 should to storing network element 630 transmissions for the urgent call of UICC less UE, the PDN that success is set up connects corresponding APN and PDN GW information.Now, the first mobile management entity 610 can not be that UICC less UE distributes IMSI.Afterwards, when UICC less UE adheres to request owing to moving between 3GPP network and non-3GPP network to the second mobile management entity 620 transmissions, should in adhering to request, carry IMEI, APN and PDN GW information.IMEI wherein can carry out when PDN connects recovery operation using for the second mobile management entity 620.It should be noted that, APN and PDN GW information also can send to by other message except adhering to request the second mobile management entity 620.

The second mobile management entity 620 adheres to after request receiving, utilization is adhered to the request information of carrying and is judged that this adheres to request and is whether: UICC less UE carries out between 3GPP network and non-3GPP network, moving the request of adhering to sending in emergency calling process, for example 620 pairs of the second mobile management entities send this type of adhering to UE type of request and adhering to request and judge, take determine send adhere to request UE whether as UICC less UE, whether this to adhere to request be the request of adhering to of switching type.The request of adhering to of the switching type here refers at UE and carries out in emergency calling process, because UE moves between 3GPP network and non-3GPP network to the request of adhering to of the second mobile management entity 620 transmissions.

When storage network element 630 is UICC less UE, and above-mentionedly judgment result is that sending the UE adhere to request is UICC less UE, and this adheres to asks to carry out in emergency calling process in the situation that move the request of adhering to sending between 3GPP network and non-3GPP network for UE, the second mobile management entity 620 can be from the message that UICC less UE sends (as adhering in request) get IMEI, APN and PDN GW information, afterwards, the second mobile management entity 620 can utilize APN and PDN GW information to determine and set up the PDN GW that PDN is connected, then, the PDN GW that the second mobile management entity 620 indications are determined connects and carries out Recovery processing PDN corresponding to IMEI.

When storage network element 630 is attribution assigned user server, and above-mentionedly judgment result is that sending the UE adhere to request is that UICCless UE and this adhere to request and for UE, carry out in emergency calling process in the situation that move the request of adhering to sending between 3GPP network and non-3GPP network, the second mobile management entity 620 can be from the message that UICC less UE sends (as adhering in request) get IMEI or IMSI.If that carry in the message that UICC less UE sends is IMSI, the second mobile management entity 620 can be selected attribution assigned user server according to IMSI, afterwards, the second mobile management entity 620 is to corresponding APN and the PDN GW information of attribution assigned user server request IMSI of selecting, like this, the APN that the second mobile management entity 620 can utilize request to obtain determines and sets up the PDN GW that PDN is connected with PDN GW information, then, the PDN GW that the second mobile management entity 620 indications are determined connects and carries out Recovery processing PDN corresponding to IMSI.If that carry in the message that UICC less UE sends is IMEI, the second mobile management entity 620 can be to APN corresponding to the attribution assigned user server request IMEI of default setting and PDN GW information, like this, the APN that the second mobile management entity 620 can utilize request to obtain determines and sets up the PDN GW that PDN is connected with PDNGW information, then, the PDN GW that the second mobile management entity 620 indications are determined connects and carries out Recovery processing PDN corresponding to IMEI.

It should be noted that, successfully PDN is being connected and carrying out after Recovery processing, PDN after Recovery processing must be connected to the corresponding PDN connection information needed of setting up and send to storage network element 630, now, above-mentioned the second mobile management entity 620 becomes the first mobile management entity 610, while again carrying out mobile between 3GPP network and non-3GPP network in UICC less UE carrying out emergency calling process, the mobile management entity in objective network becomes the second mobile management entity 620.

The concrete structure of above-mentioned the first mobile management entity 610 and the second mobile management entity 620 is as the description in following embodiment.

Embodiment 11, the network equipment.This network equipment is the mobile management entity in network, as mobile management network element or Mobile Access Gateway etc.The structure of this network equipment as shown in Figure 7.

The network equipment in Fig. 7 comprises: set up module 710 and sending module 720.

For the urgent call of UICC less UE, set up module 710 and set up packet data network PDN connection.The PDN connection of setting up module 710 foundation can be to carry out in the initial attaching process of urgent call at UICC less UE, and the PDN setting up for the urgent call of UICC less UE connects.

For the urgent call of UICC less UE and the PDN that success is set up connects, sending module 720 sends and sets up PDN and connect information needed to storage network element.It can be to carry out in the initial attaching process of urgent call at UICC less UE that the PDN that above-mentioned success is set up connects, the PDN successfully setting up for the urgent call of UICC less UE connects, also can be to carry out in the 3GPP network and the switching attaching process between non-3GPP network of urgent call at UICC less UE, the PDN successfully recovering for the urgent call of UICC less UE connects.The above-mentioned PDN of foundation connects information needed and comprises: APN and PDN GW information.PDN GW information is as PDN GW sign or PDN GW address etc.

In the situation that storage network element is UICC less UE, the concrete structure of above-mentioned sending module 720 is as shown in accompanying drawing 8A.

Sending module 720 in Fig. 8 A comprises: the first acquisition module 800 and the first sending module 810.

The first acquisition module 800 obtains for the urgent call of UICC less UE and PDN that success is set up connects corresponding APN and PDN GW information.The first acquisition module 800 can be that the grouped data network gateway that UE selects obtains APN and PDN GW information according to its place network equipment.

The information that the first sending module 810 obtains the first acquisition module 800 sends to described UICC less UE.For example, the APN that the first sending module 810 obtains the first acquisition module 800 and PDN GW information are carried to adhere to be accepted in message, and to UICCless UE, sends this and adhere to and accept message.

In the situation that storage network element is attribution assigned user server, a kind of concrete structure of above-mentioned sending module 720 is as shown in accompanying drawing 8B.

Sending module 720 in Fig. 8 B comprises: the second acquisition module 820 and the second sending module 830.

The second acquisition module 820 obtains the IMSI of UICC less UE and for the urgent call of UICC less UE and the PDN that success is set up connects corresponding APN and PDN GW information; This IMSI is: set up module 710 and for carrying out the UICCless UE of urgent call, set up first the IMSI of dynamic assignment in PDN connection procedure.The second acquisition module 820 can receive from its network equipment, UICC less UE sends adheres to and request, obtain IMSI.Adhere to IMSI in request and be the message that UICC less UE sends from the network equipment and obtain.For example, setting up module 710, be UICC less UE dynamic assignment after IMSI, set up module 710 to UICC less UE send the IMSI carry dynamic assignment message (as set up module 7100, IMSI be carried to adhere to accept in message, and to UICC less UE send this adhere to accept message).

The information that the second sending module 830 obtains indication information and the second acquisition module 820 sends to attribution assigned user server; This indication information is used to indicate attribution assigned user server in the situation that IMSI, APN and the PDN GW information that does not have the subscription data information storing received of UICC less UE to arrive.The IMSI that the second sending module 830 can obtain according to the second acquisition module 820 selects attribution assigned user server, and sends indication information, IMSI, APN and PDN GW information to the attribution assigned user server of selecting.

At storage network element be attribution assigned user server in the situation that, the concrete structure of the another kind of above-mentioned sending module 720 is as shown in accompanying drawing 8C.

Sending module 720 in Fig. 8 C comprises: the 3rd acquisition module 840 and the 3rd sending module 850.

The 3rd acquisition module 840 obtains the IMEI of UICC less UE and for the urgent call of UICC less UE and the PDN that success is set up connects corresponding APN and PDN GW information.The IMEI that the 3rd acquisition module 840 obtains derives from the message that UICC less UE sends, as Attach Request message etc.The APN that the 3rd acquisition module 840 obtains can be to set up module 710 to be connected for setting up PDN APN and the PDN GW information of selecting with PDN GW information.

The information that the 3rd sending module 850 obtains the 3rd acquisition module 840 sends to default attribution assigned user server.For example, the 3rd sending module 850 is carried at IMEI, APN and PDN GW information in notification message, and sends this message to default attribution assigned user server.In this notification message, can also carry indication information, this indication information is called on and is being shown effectively time: this registration is because UICC less UE carries out the registration that urgent call is carried out, attribution assigned user server should be carried out registration operation, and does not need to return error message.Above-mentioned default attribution assigned user server is determined by the default configuration of the network equipment.

Embodiment 12, the network equipment.This network equipment is the mobile management entity in network, as mobile management network element or Mobile Access Gateway etc.The structure of this network equipment as shown in Figure 9.

The network equipment in Fig. 9 comprises receiver module 910, judge module 920 and recovers module 930.

Receiver module 910 receives the handover request that subscriber equipment sends.This handover request can be that UICC less UE carries out between 3GPP network and non-3GPP network, moving in emergency calling process and the handover request that sends.This handover request is as adhered to request etc.

In the situation that storage network element is attribution assigned user server, in the handover request that receiver module 910 receives, can carry IMSI or IMEI.The IMSI is here that the network equipment in source network is the IMSI of UICC less UE dynamic assignment.

In the situation that storage network element is UICC less UE, in the handover request that receiver module 910 receives, can carry IMEI.

The information that the handover request that 920 pairs of receiver modules 910 of judge module receive is carried judges, for example, whether be whether the type that in UICC less UE, Attach Request message whether carry the information of urgent call and adhere to request be switch etc. in judgement if sending the UE adhere to request.

In the described handover request of judgment result is that of judge module 920, be during UICC less UE carries out emergency calling process in the situation that move the handover request sending between 3GPP network and non-3GPP network, recovery module 930 connects according to the PDN that sets up corresponding to the subscriber equipment obtaining from storage network element the PDN connection recovery that information needed is carried out the urgent call of this subscriber equipment; Recover module 930 and also can recover according to prefabricated default PDN GW the PDN connection of the urgency traffic of described UICC less UE, that is to say, setting up in the process that PDN connects carrying out urgent call for this UICC less UE, is all to utilize default PDN GW to realize PDN establishment of connection.。

At storage network element be attribution assigned user server in the situation that, recover obtaining operation and can carrying out of module 930 after the decision operation of judge module 920.And, recover module 930 and can select attribution assigned user server according to the IMSI carrying in request that adheres to receiving, then, recover module 930 and utilize this IMSI to obtain APN and PDN GW information to the attribution assigned user server inquiry of selecting.In addition, recover module 930 and can obtain IMEI from adhering to the information that request carries of receiving, then, recover module 930 and utilize this IMEI to obtain APN and PDNGW information to default attribution assigned user server inquiry.

In the situation that storage network element is UICC less UE, the decision operation of obtaining operation and judge module 920 of recovering module 930 can not have the restriction of sequencing.And, the information that the message (as Attach Request message) that recovery module 930 can be sent from UICC less UE is carried, obtain APN and PDN GW information.

In the situation that storage network element is attribution assigned user server, recover a kind of concrete structure of module 930 as shown in accompanying drawing 10A.

Recovery module 930 in Figure 10 A comprises: the first inquiry submodule 1000 and recovery submodule 1010.

In the described handover request of judgment result is that of judge module 920, be during UICC less UE carries out emergency calling process in the situation that move the handover request sending between 3GPP network and non-3GPP network, the information that the handover request that the first inquiry submodule 1000 receives from receiver module 910 is carried, obtain IMSI, then, the IMSI that the first inquiry submodule 1000 obtains according to this selects attribution assigned user server, and send to the attribution assigned user server of selection the message (as query messages) that carries IMSI, the message that the first inquiry submodule 1000 returns from attribution assigned user server, obtain and set up PDN connection information needed, and this communication is given and recovered submodule 1010.

The PDN that sets up that recovery submodule 1010 comes according to the first inquiry submodule 1000 transmission connects the PDN connection recovery that information needed is carried out the urgent call of subscriber equipment.

At storage network element be attribution assigned user server in the situation that, recover the concrete structure of the another kind of module 930 as shown in accompanying drawing 10B.

Recovery module 930 in Figure 10 B comprises: the second inquiry submodule 1020 and recovery submodule 1010.

In the described handover request of judgment result is that of judge module 920, be during UICC less UE carries out emergency calling process in the situation that move the handover request sending between 3GPP network and non-3GPP network, the information that the handover request that the second inquiry submodule 1020 receives from receiver module 910 is carried, obtain IMEI, then, the IMEI that the second inquiry submodule 1020 obtains according to this sends the message (as query messages) that carries IMEI to default attribution assigned user server, the message that the second inquiry submodule 1020 returns from attribution assigned user server, obtain and set up PDN connection information needed, and this communication is given and recovered submodule 1010.

The PDN that sets up that recovery submodule 1010 comes according to the second inquiry submodule 1020 transmission connects the PDN connection recovery that information needed is carried out the urgent call of subscriber equipment.

It should be noted that in a network equipment, to there is the module of recording in embodiment 11 and embodiment 12 simultaneously; The in the situation that of having the module of foundation 710, sending module 720, receiver module 910, judge module 920 simultaneously and recover module 930 in a network equipment, the UICC less UE setting up in module 710 and sending module 720 executable operations does not refer to same UICC less UE with the UICC less UE in receiver module 910, judge module 920 and recovery module 930 executable operations.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential hardware platform by software and realize, can certainly all by hardware, implement, but in a lot of situation, the former is better execution mode.Understanding based on such, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.

Although described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not depart from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.

Claims

1. a urgency traffic implementation method, is characterized in that, described method comprises:

The first mobile management entity is not have the urgency traffic of the terminal equipment UICC less UE of subscription data to set up PDN connection, and the information that the described PDN setting up is connected sends to storage network element; Described the first mobile management entity is positioned at 3GPP network;

The second mobile management entity receives the handover request of described UICC less UE; Determine that described UICC less UE, in the process of carrying out urgency traffic, the switching between 3GPP network and non-3GPP network has occurred; The PDN that the information connecting according to the packet data network PDN of the described UICC less UE obtaining is recovered the urgency traffic of described UICC less UE connects; Described the second mobile management entity is positioned at non-3GPP network;

Described storage network element is UICC less UE, and the information that described the first mobile management entity connects the described PDN setting up sends to storage network element, comprising:

The PDN of described UICC less UE is connected to corresponding APN APN to described the first mobile management entity and grouped data network gateway PDN GW information sends to described UICC less UE;

Described UICC less UE carries out between 3GPP network and non-3GPP network, switching in urgency traffic process and carries international mobile equipment identification number IMEI, APN and PDN GW information in the handover request that sends, and described IMEI is used for recovering described PDN and connects.

2. the method for claim 1, is characterized in that, the PDN that the information that the packet data network PDN of the described UICC less UE that described basis is obtained connects is recovered the urgency traffic of described UICC less UE connects, and comprising:

The PDN that the information connecting according to the packet data network PDN of the described UICC less UE obtaining from storage network element is recovered the urgency traffic of described UICC less UE connects.

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

Attribution assigned user server is: default attribution assigned user server; Or

Described attribution assigned user server is: the attribution assigned user server of selecting according to the international mobile subscriber identity IMSI of described UICC less UE, described IMSI is: the IMSI distributing for carrying out the described UICC less UE of urgency traffic.

4. method as claimed in claim 3, is characterized in that, when described attribution assigned user server stores the IMSI of described UICC less UE, described method also comprises:

Described the first mobile management entity sends to described UICC less UE by described IMSI, and described UICC less UE carries out between 3GPP network and non-3GPP network, switching in urgency traffic process and carries described IMSI in the described handover request that sends;

The IMSI carrying in described handover request is for selecting the PDN that sets up that attribution assigned user server is stored with attribution assigned user server to be connected information needed, or in the situation that attribution assigned user server is default attribution assigned user server, for selecting the PDN that sets up that attribution assigned user server is stored to connect required information.

5. method as claimed in claim 3, is characterized in that: when described attribution assigned user server stores the IMEI of described UICC less UE, described method also comprises:

UICC less UE carries out between 3GPP network and non-3GPP network, switching in urgency traffic process and carries described IMEI in the handover request that sends;

The described IMEI carrying in described handover request is for selecting the PDN that sets up that attribution assigned user server is stored to connect information needed.

6. urgency traffic is realized a system, it is characterized in that, described system comprises:

The first mobile management entity, sets up packet data network PDN and connects for the urgency traffic for UICC less UE, send the described PDN of foundation connect required information to storage network element;

The second mobile management entity, for receiving described UICC less UE handover request, determines that described UICC less UE, in the process of carrying out urgency traffic, the switching between 3GPP network and non-3GPP network has occurred; The PDN that the information connecting according to the PDN of the described UICC less UE obtaining is recovered described UE connects;

7. system as claimed in claim 6, it is characterized in that, the PDN that the information that described the second mobile management entity connects according to the packet data network PDN of the described UICC less UE obtaining from storage network element is recovered the urgency traffic of described UICC less UE connects; Or the PDN that recovers the urgency traffic of described UICC less UE according to prefabricated default PDN GW connects.

8. system as claimed in claim 7, is characterized in that, described system also comprises:

Storage network element, sets up described PDN and connect required information, and described storage network element is UICC less UE for receiving and storing.

9. the system as described in claim 6,7 or 8, is characterized in that, described the first mobile management entity is the mobile management network element in 3GPP network, and described the second mobile management entity is the Mobile Access Gateway in non-3GPP network; Or described the second mobile management entity is the mobile management network element in 3GPP network, described the first mobile management entity is the Mobile Access Gateway in non-3GPP network.

10. a network equipment, is characterized in that, comprising:

Sending module, connects for the PDN for described foundation, sends the described PDN of foundation connect required information to storage network element;

Described sending module comprises:

The first acquisition module, connects corresponding APN and PDN GW information for obtaining described PDN;

The first sending module, sends to described UICC less UE for APN and the PDN GW information that described the first acquisition module is obtained;

Or described sending module comprises:

The second acquisition module, for obtaining IMSI and described APN and the PDN GW information of UICC less UE; Described IMSI is: the described module of setting up is that the UICC less UE that carries out urgency traffic sets up in PDN connection procedure and distributes IMSI;

The second sending module, for the IMSI that obtains according to described the second acquisition module, select attribution assigned user server, and the APN that indication information and described the second acquisition module are obtained and the PDN GW information attribution assigned user server that sends to described selection; Described indication information is used to indicate attribution assigned user server in the situation that IMSI, APN and the PDN GW information that does not have the subscription data information storing received of described UICC less UE to arrive;

Or described sending module comprises:

The 3rd acquisition module, for obtaining IMEI and described APN and the PDN GW information of UICC less UE;

The 3rd sending module, sends to default attribution assigned user server for APN and the PDN GW information that described the 3rd acquisition module is obtained.

11. 1 kinds of network equipments, is characterized in that, comprising:

Receiver module, for receiving the handover request of UICC less UE;

Recover module, the PDN that recovers the urgency traffic of described UICC less UE for the information connecting according to the packet data network PDN of the described UICC less UE obtaining connects;

The PDN that the information that described recovery module connects according to the packet data network PDN of the described UICC less UE obtaining from storage network element is recovered the urgency traffic of described UICC less UE connects; Or the PDN that recovers the urgency traffic of described UICC less UE according to prefabricated default PDN GW connects;

Described storage network element is attribution assigned user server, in the handover request that described receiver module receives, carries IMSI; And described recovery module comprises:

The first inquiry submodule, selects attribution assigned user server for the IMSI carrying according to handover request, and from the attribution assigned user server of described selection, inquiry is obtained and set up PDN connection information needed, and output;

Recover submodule, for connecting according to the PDN that sets up receiving the PDN connection that required information is recovered the urgency traffic of described subscriber equipment;

Or at described storage network element, is attribution assigned user server, in the handover request that described receiver module receives, carries IMEI, and recovery module comprises:

The second enquiry module is inquired about to obtain for the IMEI carrying according to described handover request and is set up PDN and connect required information from default attribution assigned user server, and output;

Recover submodule, for connecting according to the PDN that sets up receiving the PDN connection that information needed is recovered the urgency traffic of described subscriber equipment.