CN101877841A

CN101877841A - Method, system and network equipment for realizing urgent services

Info

Publication number: CN101877841A
Application number: CN2009100832609A
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: 2010-11-03
Anticipated expiration: 2029-04-28
Also published as: CN101877841B; 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 the network equipment

Technical field

The present invention relates to the network communications technology field, be specifically related to urgency traffic implementation method, urgency traffic realization system and the network equipment.

Background technology

UE (subscriber equipment) is when 3GPP network or Non-3GPP (non-3GPP) network attachment, usually need be from HSS (HomeSubscriber Service, attribution assigned user server) locates to obtain the subscription data of UE, for example the MME in the 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) does not obtain the subscription data of UE, at this moment from HSS when 3GPP network attachment or Non-3GPP network attachment, UICC less UE is merely able to carry out urgency traffic, as emergence call service.

In realizing process of the present invention, the 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, then can cause urgency traffic to interrupt.Below UICC less UE being moved to Non-3GPP network and UICC less UE from the 3GPP network moves to from the Non-3GPP network and occurs the phenomenon that emergence call service interrupts the 3GPP network development process and describe.

Under the situation of UICC less UE attached to the 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 can't select a HSS for UICC less UE, also just the PDN GW information of above-mentioned selection can't be registered among the HSS.Afterwards, UICC less UE moves in the Non-3GPP network, because the PDN that the Non-3GPP network can't obtain to set up for the urgent call of UICC lessUE in the 3GPP network connects selected PDN GW information, therefore, the PDN that the Non-3GPP network also just can't recover to set up for the urgent call of UICC less UE in the 3GPP network connects, thereby causes emergence call service to interrupt.

In like manner, under the situation of UICC less UE, because the Non-3GPP network also can't also just can't will be registered among the HSS for the selected PDN GW of urgent call information for UICCless UE selects a HSS attached to the Non-3GPP network.Afterwards, this UICC less UE moves in the 3GPP network, because the PDN that MME can't obtain to set up for the urgent call of UICC less UE in the Non-3GPP network connects selected PDN GW information, therefore, the PDN that MME also just can't recover to set up for the urgent call of UICCless UE in the 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 the 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 comprises:

Reception does not have the handoff 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 switching between 3GPP network and the non-3GPP network has taken place;

The PDN that the information that connects according to the packet data network PDN of the described UICC less UE that obtains 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:

First mobile management entity, the packet data network PDN that is used for setting up at the urgency traffic of UICC less UE connects, and sends the described PDN that sets up to the storage network element and connects required information;

Second mobile management entity is used to receive described UICC less UE handoff request, determines that described UICC less UE in the process of carrying out urgency traffic switching between 3GPP network and the non-3GPP network has taken place; The PDN that the information that connects according to the PDN of the described UICC lessUE that obtains is recovered described UE connects.

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

Set up module, be used for setting up packet data network PDN and connect at the urgency traffic of UICC less UE;

Sending module is used for connecting at the PDN of described foundation, sends the described PDN that sets up to the storage network element and connects required information.

Receiver module is used to receive the handoff request of cutting UICC less UE;

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

Recover module, be used for information that the packet data network PDN according to the described UICC less UE that obtains connects and recover the PDN of the urgency traffic of described UICC less UE and connect.

Description by technique scheme as can be known, by in the storage of predetermined network element place at the urgency traffic of UICC less UE and the packet data network PDN that success is set up connects the pairing PDN that sets up and connects information needed, thereby carry out in the urgency traffic process between 3GPP network and non-3GPP network when mobile at UICC less UE, 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.

Description of drawings

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

Fig. 2 a is that the UICC less UE of the embodiment of the invention two is in the 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 invention four is in the 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 invention two in carrying out emergency calling process, move to non-3GPP network from the 3GPP network after, the 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 invention four in carrying out emergency calling process, move to non-3GPP network from the 3GPP network after, the 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 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 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 invention three in carrying out emergency calling process, move to the 3GPP network from non-3GPP network after, the 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 invention five in carrying out emergency calling process, move to the 3GPP network from non-3GPP network after, the 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 invention ten is realized system schematic;

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

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

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

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

Embodiment

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

Embodiment one, urgency traffic implementation method.Present embodiment and following each embodiment all are that emergence call service is that example describes with the urgency traffic, 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, at the urgent call of UICC less UE and the PDN that success is set up connects, mobile management entity sends to the storage network element and sets up PDN and connect required information.Mobile management entity promptly is responsible for obtaining the network equipment of setting up PDN connection information needed.For example, mobile management entity is the MME in the 3GPP network; Again for example, mobile management entity is Mobile Access Gateway in the non-3GPP network or the like.

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 that successfully sets 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 the non-3GPP network of urgent call at UICC less UE, the PDN that successfully recovers 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 such as PDN GW sign or PDN GW address etc.

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

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

UE has distributed IMSI if mobile management entity is UICC less, then mobile management entity should be notified to UICC less UE with the IMSI that distributes, afterwards, UICC less UE is owing to when request is adhered in the mobile management entity transmission, should carry the IMSI of mobile management entity for its distribution moving between 3GPP network and the non-3GPP network in adhering to request.Like this, connect in the recovery processing procedure at subsequent P DN, mobile management entity can be selected attribution assigned user server according to adhering to the IMSI that carries in the request, and sets up PDN connection information needed to the attribution assigned user server request of selecting.At this moment, can store the corresponding relation of IMSI and APN and PDN GW information in the attribution assigned user server of selection.

At attribution assigned user server is under the situation of mobile management entity according to the attribution assigned user server of IMSI selection, owing to do not have the CAMEL-Subscription-Information of UICC less UE in the 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 error message to mobile management entity.Can correctly store IMSI, APN and PDN GW information in order to make attribution assigned user server, mobile management entity is when the attribution assigned user server transmission carries the message of IMSI, APN and PDN GW information, can in message, carry indication information, under the situation of the CAMEL-Subscription-Information that does not have UICC less UE, also should store IMSI, APN and PDN GW information with the indication attribution assigned user server.

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

Be under the situation of attribution assigned user server of default configuration at attribution assigned user server, same, owing to do not have the CAMEL-Subscription-Information of UICC less UE in the attribution assigned user server, therefore, according to common processing mode, attribution assigned user server can not carry out stores processor, but also can return error message to mobile management entity after receiving IMEI, APN and PDN GW information.Can correctly store IMEI, APN and PDN GW information in order to make attribution assigned user server, mobile management entity is when the attribution assigned user server transmission carries the message of IMEI, APN and PDN GW information, can in message, carry indication information, under the situation of the CAMEL-Subscription-Information that does not have UICC less UE, also should store IMEI, APN and PDN GW information with the indication attribution assigned user server.Need to prove, also can not carry indication information in the message that mobile management entity sends, at this moment, when attribution assigned user server carries IMEI in judging message, the IMEI in the message, APN and PDN GW information are carried out stores processor.

At the storage network element is under the situation of UICC less UE, and mobile management entity should send at the urgent call of UICC less UE and the PDN that success is set up connects pairing APN and PDN GW information to the storage network element.At this moment, mobile management entity can not be that UICC less UE distributes IMSI.Afterwards, UICC less UE is owing to when request is adhered in the mobile management entity transmission, should carry IMEI, APN and PDN GW information moving between 3GPP network and the non-3GPP network in adhering to request.IMEI wherein can carry out using when PDN connects recovery operation for PDN GW.Need to prove that APN and PDN GW information also can send to mobile management entity by other message except that adhering to request.

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

At above-mentioned judged result is adhered to request for transmission UE is that UICC less UE and this adhere to request and carry out for UE moving between 3GPP network and the non-3GPP network under the situation of adhering to request that sends in the emergency calling process, 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 that concrete deterministic process no longer describes in detail at this.

Step 120, mobile management entity are obtained the PDN that sets up that sends the UE correspondence of adhering to request from the storage network element and are connected information needed, and the PDN of urgent call that transmission is adhered to the UE of request according to this information connects and recovers to handle operation.

When the storage network element is UICC less UE, mobile management entity can be from the message that UICC less UE sends (as adhering in the request) get access to 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 determines of mobile management entity indication connects and recovers to handle (promptly the PDN of IMEI correspondence is connected and carry out hand-off process) to the PDN of IMEI correspondence.

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

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

Need to prove, after successfully connection has been carried out recovering processing to PDN, must the PDN connection information needed of setting up that the PDN connection after the recovery processing is corresponding send to the storage network element, promptly return step 100, and request is adhered in continuation wait reception.In addition, at step 130 place, mobile management entity can be to carry out under the situation of initially adhering to request that urgent call sends for UICC less UE judging the request of adhering to that receives, and is that UICC less UE distributes IMSI, and carries out subsequent P DN according to this IMSI and connect the process of setting up.After the PDN successful connection was set up, the PDN that mobile management entity will success be set up connected the corresponding PDN that sets up and connects information needed and send to the storage network element, promptly returns step 100, and continues to wait for the request of adhering to of reception subscriber equipment transmission.

Need to prove in addition, type of attachment in the foregoing description one is a kind of of handoff request for asking adhering to of switching, type of attachment among this embodiment one is adhered to request and also can be the handoff request of other form for what switch, as the PDN connection type for the PDN connection request that switches etc.The type of attachment of putting down in writing among the following embodiment is adhered to request and also can be the handoff request of other form for what switch, no longer carries out one by one repeat specification at the adhering to request among following each embodiment below.Also have, step 100 among the embodiment one, 110 and 120 operation can be carried out by same mobile management entity, also can have two different mobile management entities to carry out; Under situation about being carried out by same mobile management entity, UICC less UE in the step 100 and the UICC less UE in

step

110 and 120 are not meant same UICC less UE; Under situation about being carried out by two mobile management entities, UICC less UE in the step 100 and the UICC less UE in

step

110 and 120 are meant same UICC lessUE.

The description of the foregoing description one as can be known, by in the storage of predetermined network element place at the urgent call of UICC less UE and the packet data network PDN that success is set up connects the pairing PDN that sets up and connects information needed, thereby carry out in the emergency calling process between 3GPP network and non-3GPP network when mobile at UICC less UE, 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 two, UICC less UE insert 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 that distributes, and the PDN GW information that will connect correspondence for the PDN that the urgent call of UICC less UE is set up is registered in the attribution assigned user server of selection, after this, UICC less UE moves to the non-3GPP network from the 3GPP network; In these cases, the emergence call service realization flow is shown in accompanying drawing 2a and accompanying drawing 3a.

Fig. 2 a shows UICC less UE in the 3GPP network insertion and initiate the flow process of emergence call service, and promptly 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 are after to judge UE be to carry the information of urgent call in UICC less UE and the Attach Request message, 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 that is retained, and conflicts mutually with the IMSI of other normal UE with the IMSI that avoids this dynamic assignment.Mobile management network element sends to gateway and creates the default bearer request message.

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

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

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

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

Step 7, UE are finished message receiving to adhere to return to adhere to mobile management network element after accepting message.

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

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

Step 10, mobile management network element send notification request message to attribution assigned user server, carry corresponding APN and the PDN GW address of PDN connection that promising UE successfully sets up in this notification request message, also carry indication information so that with APN and PDN GW address registration in attribution assigned user server.This indication information such as UICC less EMC.This indication information is called on effectively the time and shown: this registration is owing to UICC less UE carries out the registration that urgent call is carried out, and attribution assigned user server should be carried out the 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 that carries in the message with APN and PDN GW address registration in attribution assigned user server, from notification request message, obtain IMSI, APN and PDN GW address as attribution assigned user server, and preserve the corresponding relation of IMSI information, APN and PDN GW information.Attribution assigned user server returns push-notification-answer message to mobile management network element.

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

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

Step 2, Mobile Access Gateway receive adhere to request after, to adhere to the information, the UE that carry urgent call in the request be after UICC less UE and type of attachment are Handover judging, Mobile Access Gateway is selected attribution assigned user server according to adhering to the IMSI that carries in the 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 the agent binding request message according to APN that obtains from attribution assigned user server and PDN GW sign to grouped data network gateway.

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

Step 5, Mobile Access Gateway and UE are mutual, complete successfully with this attachment flow of notice UE, i.e. the PDN successful connection of UE recovers.

The description of the foregoing description two as can be known, mobile management network element is by being the UICC less UE dynamic assignment IMSI at 3GPP access and initiation emergence call service, thereby mobile management network element can be that UICC less UE selects attribution assigned user server according to this IMSI, mobile management network element can successfully register attribution assigned user server according to this indication information by sending indication information, APN and PDN GW information to the attribution assigned user server of selecting to APN and PDN GW information; Mobile management network element is by sending IMSI to UICC less UE, and UICC less UE carries out in the emergency calling process when moving to non-3GPP network from the 3GPP network, UICC less UE sends to Mobile Access Gateway with the IMSI that receives, make Mobile Access Gateway select corresponding attribution assigned user server according to this IMSI, and from the attribution assigned user server of selecting, obtain APN and PDN GW information, 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 three, UICC less UE insert 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 that distributes, and the PDN GW information that will connect correspondence for the PDN that the urgent call of UICC less UE is set up is registered in the attribution assigned user server of selection, after this, UICC less UE moves to the 3GPP network from non-3GPP network; In these cases, the emergence call service realization flow is shown in accompanying drawing 4a and accompanying drawing 5a.

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

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

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

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

After step 4, grouped data network gateway receive the agent binding request message, be that UE selects attribution assigned user server according to the IMSI that carries in the agent binding request message.Grouped data network gateway requires the attribution assigned user server update packet data network gateway information (as the address of update packet data network gateway) of selection, be that grouped data network gateway sends renewal PDN GW address message to attribution assigned user server, carry indication information in this update packet data network gateway address message, this indication information such as UICC less EMC.This indication information is called on effectively the time and shown: this registration updating is owing to UICC less UE carries out the registration updating that urgent call is carried out, and attribution assigned user server should be carried out the registration updating 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 that carries in the message with APN and PDN GW address registration in attribution assigned user server, from upgrade PDN GW address message, obtain IMSI, APN and PDN GW address as attribution assigned user server, 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 carry out information interaction with UE after receiving proxy binding acknowledgment messages, complete successfully with this initial attachment flow of notice UE, and the PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send to adhere to UE finishes message, and this adheres to finish and carries the IMSI that Mobile Access Gateway is the UE dynamic assignment in the message.

Fig. 5 a shows UICC less UE in carrying out emergency calling process, move to the 3GPP network from non-3GPP network after, the 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 the request is Handover, and this adheres to and carries the IMSI that Mobile Access Gateway is the UE dynamic assignment in the request.

To adhere to the information, the UE that carry urgent call in the request be after UICC less UE and type of attachment are Handover judging for step 2, mobile management network element, mobile management network element is selected attribution assigned user server according to adhering to the IMSI that carries in the 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 to gateway and create the default bearer request message.

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

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

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

Step 7, mobile management network element receive create the default bearer response message after, return to adhere to UE and accept message.

Step 8, UE are finished message receiving to adhere to return to adhere to mobile management network element after accepting message.

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

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

The description of the foregoing description three as can be known, Mobile Access Gateway is by being the UICC less UE dynamic assignment IMSI at non-3GPP access and initiation emergence call service, thereby Mobile Access Gateway can be that UICC less UE selects attribution assigned user server according to this IMSI, Mobile Access Gateway can successfully register attribution assigned user server according to this indication information by sending indication information, APN and PDN GW information to the attribution assigned user server of selecting to APN and PDN GW information; Mobile Access Gateway is by sending IMSI to UICC less UE, and UICC less UE carries out in the emergency calling process when non-3GPP network moves to the 3GPP network, UICC less UE sends to mobile management network element with the IMSI that receives, make mobile management network element select corresponding attribution assigned user server according to this IMSI, and from the attribution assigned user server of selecting, obtain APN and PDN GW information, 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 four, UICC less UE insert and initiate emergence call service at 3GPP, mobile management network element does not distribute IMSI for UICCless UE, mobile management network element is after having selected grouped data network gateway for UE, APN and gateway information of packet data network are sent to UE, after this, UICC less UE moves to the non-3GPP network from the 3GPP network, and UE offers mobile management network element with APN and the gateway information of packet data network that receives.Below in conjunction with accompanying drawing 2b and accompanying drawing 3b embodiment four is described.

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

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

Step 6, mobile management network element return to adhere to UE accepts message, and this adheres to accepts to carry in the 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, move to non-3GPP network from the 3GPP network after, the 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 adheres to request to the Mobile Access Gateway transmission, this adheres to the type of attachment of carrying in the request is Handover, and this adheres to and carries APN and the gateway information of packet data network that mobile management network element sends to UE in the request.

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

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

Step 4, Mobile Access Gateway and UE are mutual, complete successfully with this attachment flow of notice UE, i.e. the PDN successful connection of UE recovers.

The description of the foregoing description four as can be known, mobile management network element is by selecting APN and PDN GW for the UICC less UE that inserts and initiate emergence call service at 3GPP, and APN and the PDN GW information of selecting sent to UICC less UE, UICCless UE is carried out in the emergency calling process when moving to non-3GPP network from the 3GPP network, APN and the PDNGW information that receives can be sent to Mobile Access Gateway, make Mobile Access Gateway can from the message that receives, obtain APN and PDN GW information, connect recovery thereby Mobile Access Gateway can utilize this information of obtaining to carry out PDN; 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 insert and initiate emergence call service at non-3GPP, Mobile Access Gateway does not distribute IMSI for UICCless UE, Mobile Access Gateway is after having selected grouped data network gateway for UE, APN and gateway information of packet data network are sent to UE, after this, UICC less UE moves to the 3GPP network from non-3GPP network, and UE offers Mobile Access Gateway with APN and the gateway information of packet data network that receives.Still 4b and accompanying drawing 5b describe embodiment five in conjunction with the accompanying drawings below.

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

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

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

Step 3, Mobile Access Gateway are after to judge UE be to carry the information of urgent call in UICC less UE and the Attach Request message, Mobile Access Gateway is selected grouped data network gateway for this UE, and Mobile Access Gateway sends the agent binding request message to the grouped data network gateway of selecting.Carry IMEI in this agent binding request message.

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

Step 5, Mobile Access Gateway carry out information interaction with UE after receiving proxy binding acknowledgment messages, complete successfully with this initial attachment flow of notice UE, and the PDN connection is successfully set up in the urgent call that is UE.In this information interactive process, Mobile Access Gateway can send to adhere to UE finishes message, and this adheres to finish and carries APN in the message 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 of finishing its preservation of information updating of carrying in the message.

Fig. 5 b shows UICC less UE in carrying out emergency calling process, move to the 3GPP network from non-3GPP network after, the 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 the request is Handover, and this adheres to, and to carry IMEI, APN and Mobile Access Gateway in the request be the gateway information of packet data network that UE selects.

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

Step 6, mobile management network element receive create the default bearer response message after, return to adhere to UE and accept message.

The description of the foregoing description five as can be known, Mobile Access Gateway is by selecting APN and PDN GW for the UICC less UE that inserts and initiate emergence call service at non-3GPP, and APN and the PDN GW information of selecting sent to UICC less UE, UICCless UE is carried out in the emergency calling process when non-3GPP network moves to the 3GPP network, APN and the PDNGW information that receives can be sent to mobile management network element, make mobile management network element can from the message that receives, obtain APN and PDN GW information, connect recovery thereby mobile management network element can utilize this information of obtaining to carry out PDN; 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 the 3GPP network insertion and initiate emergence call service, mobile management network element does not distribute IMSI for UICCless UE, mobile management network element is after UE selects grouped data network gateway, will connect corresponding PDN GW information for the PDN that the urgent call of UICC less UE is set up and be registered in the default attribution assigned user server.After this, UICCless UE moves to the non-3GPP network from the 3GPP network.The mobility IAD obtains APN and PGW GW information from default attribution assigned user server, connects with the PDN to urgent call and recovers.Still 2a and accompanying drawing 3a describe embodiment six in conjunction with 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.Also carry IMEI. in this Attach Request message

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, carry corresponding APN and the PDN GW address of PDN connection that promising UE successfully sets up in this notification request message, also carry indication information so that with APN and PDN GW address registration in attribution assigned user server.This indication information such as UICC less EMC.This indication information is called on effectively the time and shown: this registration is owing to UICC less UE carries out the registration that urgent call is carried out, and attribution assigned user server should be carried out the 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 that carries in the message with APN and PDN GW address registration in attribution assigned user server, from notification request message, obtain IMEI, APN and PDN GW address as attribution assigned user server, and preserve the corresponding relation of IMEI information, APN and PDN GW information.Attribution assigned user server returns push-notification-answer message to mobile management network element.

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

Step 2, Mobile Access Gateway receive adhere to request after, to adhere to the information, the UE that carry urgent call in the request be after UICC less UE and type of attachment are Handover judging, and 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 the agent binding request message according to APN that obtains from default attribution assigned user server and PDN GW sign to grouped data network gateway.

The description of the foregoing description six as can be known, mobile management network element is by selecting APN and PDN GW for the UICC less UE that inserts and initiate emergence call service at 3GPP, and, attribution assigned user server can successfully be registered to APN and PDN GW information according to this indication information to default attribution assigned user server transmission indication information, APN and PDNGW information; Thereby UICC less UE carries out in the emergency calling process when moving to non-3GPP network from the 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 does not distribute IMSI for UICCless UE, Mobile Access Gateway is after UE selects grouped data network gateway, will connect corresponding PDN GW information for the PDN that the urgent call of UICC less UE is set up and be registered in the default attribution assigned user server.After this, UICCless UE moves to the 3GPP network from non-3GPP network.Mobile management network element obtains APN and PGW GW information from default attribution assigned user server, connects with the PDN to urgent call and recovers.Still 4a and accompanying drawing 5a describe embodiment seven in conjunction with the accompanying drawings below.

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

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

After step 4, grouped data network gateway receive the 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 the address of update packet data network gateway), be that grouped data network gateway sends renewal PDN GW address message to default attribution assigned user server, carry IMEI, APN and PDN GW address in this update packet data network gateway address message.Default attribution assigned user server is after receiving renewal PDN GW address message, utilize IMEI with the APN that carries in the message and PDN GW address registration updating in attribution assigned user server, from upgrade PDN GW address message, obtain IMEI, APN and PDN GW address as attribution assigned user server, and upgrade the corresponding relation of preserving IMEI information, APN and PDN GW information.

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

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

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

The description of the foregoing description seven as can be known, Mobile Access Gateway is by selecting APN and PDN GW for the UICC less UE that inserts and initiate emergence call service at non-3GPP, and, attribution assigned user server can successfully be registered to APN and PDN GW information according to this indication information to default attribution assigned user server transmission indication information, APN and PDNGW information; Thereby UICC less UE carries out in the emergency calling process when non-3GPP network moves to the 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 the 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 moves to the non-3GPP network from the 3GPP network.Mobile Access Gateway utilizes default grouped data network gateway that the PDN connection of urgent call is recovered.Still 2b and accompanying drawing 3b describe embodiment eight in conjunction with the accompanying drawings below.

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

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

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

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

The description of the foregoing description eight as can be known, mobile management network element is by connecting for the UICC less UE that inserts and initiate emergence call service at 3GPP selects default PDN GW to set up PDN, thereby UICC less UE carries out in the emergency calling process when moving to non-3GPP network from the 3GPP network, and 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 moves to the 3GPP network from non-3GPP network.Mobile management network element utilizes default grouped data network gateway that the PDN connection of urgent call is recovered.Still 4b and accompanying drawing 5b describe embodiment nine in conjunction with the accompanying drawings below.

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

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

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

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

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

The description of the foregoing description nine as can be known, Mobile Access Gateway is by connecting for the UICC less UE that inserts and initiate emergence call service at non-3GPP selects default PDN GW to set up PDN, thereby UICC less UE carries out in the emergency calling process when non-3GPP network moves to the 3GPP network, and 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 realization system shown in Figure 6 comprises: first mobile management entity 610 and second mobile management entity 620.This system can also comprise storage network element 630.

At the urgent call of UICC less UE and the packet data network PDN that success is set up connects, first mobile management entity 610 sends to the storage network element and sets up PDN and connect information needed.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 that successfully sets 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 the non-3GPP network of urgent call at UICC less UE, the PDN that successfully recovers 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 such 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, then second mobile management entity 620 can receive the handoff request of subscriber equipment, second mobile management entity 620 is judged the information that handoff request is carried, in judged result is that UICC less UE carries out in the emergency calling process after moving the handoff request that sends between 3GPP network and the non-3GPP network for this handoff request, and second mobile management entity 620 connects information needed and the PDN of the urgent call of this subscriber equipment is connected recovers processing according to the PDN that sets up of the subscriber equipment correspondence of 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, connect switching thereby need carry out PDN, then first mobile management entity 610 is arranged in the source network of switching, and second mobile management entity 620 is arranged in the objective network of switching.

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

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

The PDN that sets up that storage network element 630 receptions first mobile management entity 610 sends connects information needed, and storage.The storage network element 630 here can be UICC less UE, also can be attribution assigned user server.At storage network element 630 is under the situation of attribution assigned user server, this attribution assigned user server can be the attribution assigned user server of default configuration in first mobile management entity 610 and second mobile management entity 620, the attribution assigned user server that also can be first mobile management entity 610 and second mobile management entity 620 select according to the IMSI of UICC less UE.In addition, when storage network element 630 is attribution assigned user server, can store the corresponding relation of IMSI and APN and PDN GW information in the attribution assigned user server, also can store the corresponding relation of IMEI and APN and PDN GW information.IMSI wherein is used to search the PDN that successfully sets up with IMEI and is connected the pairing PDN of foundation connection information needed.

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

If first mobile management entity 610 has distributed IMSI for UICC less UE, then first mobile management entity 610 should be notified to UICC less UE with the IMSI that distributes, afterwards, UICC less UE is owing to when request is adhered in 620 transmissions of second mobile management entity, should carry the IMSI of mobile management entity for its distribution moving between 3GPP network and the non-3GPP network in adhering to request.Like this, connect in the recovery processing procedure at subsequent P DN, second mobile management entity 620 can be selected attribution assigned user server (promptly storing network element 630) according to adhering to the IMSI that carries in the request, and sets up PDN connection information needed to the attribution assigned user server request of selecting.At this moment, can store the corresponding relation of IMSI and APN and PDN GW information in the attribution assigned user server of selection.

Under the situation of the attribution assigned user server that attribution assigned user server (promptly storing network element 630) is selected according to IMSI for mobile management entity, owing to do not have the CAMEL-Subscription-Information of UICC less UE in the 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 error message to mobile management entity.Can correctly store IMSI, APN and PDN GW information in order to make attribution assigned user server, first mobile management entity 610 is when the attribution assigned user server transmission carries the message of IMSI, APN and PDN GW information, can in message, carry indication information, under the situation of the CAMEL-Subscription-Information that does not have UICC less UE, also should store IMSI, APN and PDN GW information with the indication attribution assigned user server.

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

Be under the situation of attribution assigned user server of default configuration at attribution assigned user server, same, owing to do not have the CAMEL-Subscription-Information of UICC less UE in the attribution assigned user server, therefore, according to common processing mode, ownership place is signatory with producing server behind IMEI, the APN and PDN GW information that receive 610 transmissions of first mobile management entity, can not carry out stores processor, but also can return error message to first mobile management entity 610.Can correctly store IMEI, APN and PDN GW information in order to make attribution assigned user server, first mobile management entity 610 is when the attribution assigned user server transmission carries the message of IMEI, APN and PDN GW information, can in message, carry indication information, under the situation of the CAMEL-Subscription-Information that does not have UICC less UE, also should store IMEI, APN and PDN GW information with the indication attribution assigned user server.Need to prove, also can not carry indication information in the message that first mobile management entity 610 sends, at this moment, when attribution assigned user server carries IMEI in judging message, the IMEI in the message, APN and PDN GW information are carried out stores processor.

At storage network element 630 be under the situation of UICC less UE, and first mobile management entity 610 should send at the urgent call of UICC less UE and the PDN of success foundation connects pairing APN and PDN GW information to storage network element 630.At this moment, first mobile management entity 610 can not be that UICC less UE distributes IMSI.Afterwards, UICC less UE is owing to when request is adhered in 620 transmissions of second mobile management entity, should carry IMEI, APN and PDN GW information moving between 3GPP network and the non-3GPP network in adhering to request.IMEI wherein can carry out using when PDN connects recovery operation for second mobile management entity 620.Need to prove that APN and PDN GW information also can send to second mobile management entity 620 by other message except that adhering to request.

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

When storage network element 630 is UICC less UE, and above-mentioned judged result is UICC less UE for sending the UE that adheres to request, and this adheres to request and carries out moving between 3GPP network and the non-3GPP network under the situation of adhering to request that sends in the emergency calling process for UE, second mobile management entity 620 can be from the message that UICC less UE sends (as adhering in the request) get access to IMEI, APN and PDN GW information, afterwards, 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 determines of second mobile management entity 620 indication connects the PDN of IMEI correspondence and recovers to handle.

When storage network element 630 is an attribution assigned user server, and the UE that above-mentioned judged result is adhered to request for transmission is that UICCless UE and this adhere to request and carry out moving between 3GPP network and the non-3GPP network under the situation of adhering to request that sends in the emergency calling process for UE, second mobile management entity 620 can be from the message that UICC less UE sends (as adhering in the request) get access to IMEI or IMSI.If that carry in the message that UICC less UE sends is IMSI, then second mobile management entity 620 can be selected attribution assigned user server according to IMSI, afterwards, second mobile management entity 620 is to the APN and the PDN GW information of the attribution assigned user server request IMSI correspondence of selecting, like this, the APN that second mobile management entity 620 can utilize request to obtain determines with PDN GW information and sets up the PDN GW that PDN is connected, then, the PDN GW that determines of second mobile management entity 620 indication connects the PDN of IMSI correspondence and recovers to handle.If that carry in the message that UICC less UE sends is IMEI, then second mobile management entity 620 can be to the APN and the PDN GW information of the attribution assigned user server request IMEI of default setting correspondence, like this, the APN that second mobile management entity 620 can utilize request to obtain determines with PDNGW information and sets up the PDN GW that PDN is connected, then, the PDN GW that determines of second mobile management entity 620 indication connects the PDN of IMEI correspondence and recovers to handle.

Need to prove, after successfully connection has been carried out recovering to handle to PDN, PDN after recover handling must be connected the corresponding PDN that sets up connects information needed and sends to storage network element 630, at this moment, above-mentioned second mobile management entity 620 becomes first mobile management entity 610, when carrying out mobile between 3GPP network and the non-3GPP network once more in UICC less UE carrying out emergency calling process, the mobile management entity in the objective network becomes second mobile management entity 620.

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

Embodiment 11, the network equipment.This network equipment is the mobile management entity in the 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 among Fig. 7 comprises: set up module 710 and sending module 720.

At 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 that sets up for the urgent call of UICC less UE connects.

At the urgent call of UICC less UE and the PDN that success is set up connects, sending module 720 sends to the storage network element and sets up PDN and connect information needed.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 that successfully sets 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 the non-3GPP network of urgent call at UICC less UE, the PDN that successfully recovers 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 such as PDN GW sign or PDN GW address etc.

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

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

First acquisition module 800 obtains at the urgent call of UICC less UE and PDN that success is set up connects pairing APN and PDN GW information.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 first sending module 810 obtains first acquisition module 800 sends to described UICC less UE.For example, APN that first sending module 810 obtains first acquisition module 800 and PDN GW information are carried to adhere to be accepted in the message, and sends this to UICCless UE and adhere to and accept message.

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

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

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

Second sending module 830 sends to attribution assigned user server with the information that indication information and second acquisition module 820 obtain; This indication information is used to indicate attribution assigned user server to store IMSI, APN and the PDN GW information that receives under the situation of the subscription data information that does not have UICC less UE.Second sending module 830 can be selected attribution assigned user server according to the IMSI that second acquisition module 820 obtains, and sends indication information, IMSI, APN and PDN GW information to the attribution assigned user server of selecting.

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

Sending module 720 among 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 at the urgent call of UICC less UE and the PDN that success is set up connects pairing 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 APN and the PDN GW information of selecting for setting up PDN with PDN GW information.

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

Embodiment 12, the network equipment.This network equipment is the mobile management entity in the 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 among Fig. 9 comprises receiver module 910, judge module 920 and recovers module 930.

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

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

At the storage network element is under the situation of UICC less UE, can carry IMEI in the handoff request that receiver module 910 receives.

The information that the handoff request that 920 pairs of receiver modules 910 of judge module receive is carried is judged, whether for example, judge to send the UE that adheres to request is whether the type that whether carries the information of urgent call in UICC less UE, the Attach Request message and adhere to request is to switch etc.

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

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

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

At the storage network element is under the situation of attribution assigned user server, and a kind of concrete structure of recovering module 930 is shown in accompanying drawing 10A.

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

Judged result at judge module 920 is that described handoff request is that UICC less UE carries out moving between 3GPP network and the non-3GPP network under the situation of the handoff request that sends in the emergency calling process, obtain IMSI the information that the handoff request that the first inquiry submodule 1000 receives from receiver module 910 is carried, then, the first inquiry submodule 1000 is selected attribution assigned user server according to this IMSI that obtains, and send the message (as query messages) that carries IMSI to the attribution assigned user server of selecting, the first inquiry submodule 1000 obtains from the message that attribution assigned user server returns sets up PDN connection information needed, and gives recovery submodule 1010 with this message transmission.

Recovery submodule 1010 is inquired about the next PDN that sets up of submodule 1000 transmission according to first and is connected the PDN connection recovery that information needed is carried out the urgent call of subscriber equipment.

At the storage network element is under the situation of attribution assigned user server, and the another kind of concrete structure of recovering module 930 is shown in accompanying drawing 10B.

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

Judged result at judge module 920 is that described handoff request is that UICC less UE carries out moving between 3GPP network and the non-3GPP network under the situation of the handoff request that sends in the emergency calling process, obtain IMEI the information that the handoff request that the second inquiry submodule 1020 receives from receiver module 910 is carried, then, the second inquiry submodule 1020 sends the message (as query messages) that carries IMEI according to this IMEI that obtains to default attribution assigned user server, the second inquiry submodule 1020 obtains from the message that attribution assigned user server returns sets up PDN connection information needed, and gives recovery submodule 1010 with this message transmission.

Recovery submodule 1010 is inquired about the next PDN that sets up of submodule 1020 transmission according to second and is connected the PDN connection recovery that information needed is carried out the urgent call of subscriber equipment.

Need to prove to have the module of putting down in writing among embodiment 11 and the embodiment 12 simultaneously in the network equipment; Have module set up 710, sending module 720, receiver module 910, judge module 920 simultaneously and recover under the situation of module 930 in a network equipment, the UICC less UE that sets up in module 710 and sending module 720 executable operations is not meant same UICC less UE with 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 present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement, but the former is better execution mode under a lot of situation by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.

Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away 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:

2. require 1 described method as power, it 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 that connects according to the packet data network PDN from the described UICC less UE that obtains of storage network element is recovered the urgency traffic of described UICC less UE connects; Perhaps

The PDN that recovers the urgency traffic of described UICC less UE according to prefabricated default PDN GW connects.

3. method as claimed in claim 2 is characterized in that, described storage network element is described UICC less UE, and perhaps described storage network element is an attribution assigned user server.

4. method as claimed in claim 3 is characterized in that:

Described attribution assigned user server is: default attribution assigned user server; Perhaps

Described attribution assigned user server is: according to the attribution assigned user server that the international mobile subscriber identity IMSI of described UICC less UE selects, described IMSI is: the IMSI that distributes for the described UICC less UE that carries out urgency traffic.

5. method as claimed in claim 2 is characterized in that, when described executive agent was second mobile management entity, described method also comprised:

Before described UICC less UE switched, first mobile management entity was that the urgency traffic of described UICC less UE is set up the PDN connection, and the information that the described PDN that will set up connects sends to the storage network element; Wherein said first mobile management entity and second mobile management entity lay respectively at 3GPP network and non-3GPP network.

6. method as claimed in claim 5 is characterized in that, described storage network element is UICC less UE, and the information that the described PDN that described first mobile management entity will be set up connects sends to the storage network element, comprising:

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

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

7. method as claimed in claim 5 is characterized in that, described storage network element is an attribution assigned user server, and the information that the described PDN that described first mobile management entity will be set up connects sends to the storage network element, comprising:

Described first mobile management entity is with the IMSI of indication information, described UICC less UE and set up that described PDN connects pairing APN and PDN GW information sends to described attribution assigned user server;

Described indication information is used to indicate described attribution assigned user server to store described IMSI, APN and the PDN GW information that receives under the situation of the subscription data information that does not have described UICC less UE;

Perhaps, the information that the described PDN that described first mobile management entity will be set up connects sends to the storage network element, comprising:

Described first mobile management entity is with the IMEI of described UICC less UE and described PDN connects pairing APN and PDN GW information sends to described attribution assigned user server, IMEI, APN and PDN GW information that described attribution assigned user server storage is received.

8. method as claimed in claim 7 is characterized in that, when described attribution assigned user server stored the IMSI of described UICC less UE, described method also comprised:

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

The PDN that sets up that the IMSI that carries in the described handoff request is used for selecting attribution assigned user server and attribution assigned user server to store is connected information needed, be under the situation of default attribution assigned user server at attribution assigned user server perhaps, the PDN that sets up that is used for selecting attribution assigned user server to store connects required information.

9. method as claimed in claim 7 is characterized in that: when described attribution assigned user server stored the IMEI of described UICC less UE, described method also comprised:

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

The PDN that sets up that the described IMEI that carries in the described handoff request is used for selecting attribution assigned user server to store connects information needed.

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

Second mobile management entity is used to receive described UICC less UE handoff request, determines that described UICC less UE in the process of carrying out urgency traffic switching between 3GPP network and the non-3GPP network has taken place; The PDN that the information that connects according to the PDN of the described UICC less UE that obtains is recovered described UE connects.

11. system as claimed in claim 10, it is characterized in that the PDN that described second mobile management entity recovers the urgency traffic of described UICC less UE according to the information of the packet data network PDN connection of the described UICC less UE that obtains from the storage network element connects; Perhaps recover the PDN connection of the urgency traffic of described UICC less UE according to prefabricated default PDN GW.

12. system as claimed in claim 11 is characterized in that, described system also comprises:

The storage network element is used to receive and store and sets up described PDN and connect required information, and described storage network element is UICC lessUE, and perhaps described storage network element is an attribution assigned user server.

13., it is characterized in that described first mobile management entity is the mobile management network element in the 3GPP network as claim 10,11 or 12 described systems, described second mobile management entity is the Mobile Access Gateway in the non-3GPP network; Perhaps described second mobile management entity is the mobile management network element in the 3GPP network, and described first mobile management entity is the Mobile Access Gateway in the non-3GPP network.

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

15. the network equipment as claimed in claim 14 is characterized in that, described sending module comprises:

First acquisition module is used to obtain described PDN and connects pairing APN and PDN GW information;

First sending module, the APN and the PDN GW information that are used for described first acquisition module is obtained send to described UICC lessUE;

Perhaps described sending module comprises:

Second acquisition module is used to obtain 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 the PDN connection procedure and distributes IMSI;

Second sending module, be used for the IMSI that obtains according to described second acquisition module and select attribution assigned user server, and the APN that indication information and described 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 to store IMSI, APN and the PDN GW information that receives under the situation of the subscription data information that does not have described UICC less UE;

Perhaps described sending module comprises:

The 3rd acquisition module is used to obtain IMEI and described APN and the PDN GW information of UICC less UE;

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

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

Receiver module is used to receive the handoff request of cutting UICC less UE;

17. the network equipment as claimed in claim 16 is characterized in that, the PDN that described recovery module is recovered the urgency traffic of described UICC less UE according to the information of the packet data network PDN connection of the described UICC less UE that obtains from the storage network element connects; Perhaps recover the PDN connection of the urgency traffic of described UICC less UE according to prefabricated default PDN GW.

18. the network equipment as claimed in claim 17 is characterized in that, described storage network element is UICC less UE, carries IMEI, APN and PDN GW information in the handoff request that described receiver module receives, and described IMEI is used to recover described PDN and connects.

19. the network equipment as claimed in claim 17 is characterized in that:

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

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

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

Is attribution assigned user server perhaps, carries IMEI in the handoff request that described receiver module receives, and the recovery module comprises at described storage network element:

Second enquiry module, the IMEI that is used for carrying according to described handoff request are inquired about to obtain from default attribution assigned user server and are set up the required information of PDN connection, and output;

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