CN101472264B

CN101472264B - Method, device and system for processing network switch abolition

Info

Publication number: CN101472264B
Application number: CN2007101606714A
Authority: CN
Inventors: 吴问付
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2011-11-02
Anticipated expiration: 2027-12-26
Also published as: CN101472264A; WO2009082968A1

Abstract

The invention discloses a processing method for canceling network switch, which comprises the following steps: a target mobile managing network element informs a target user plane network element to delete the resource allocated to UE (user equipment) after receiving a switching canceling message sent by a source access network element or the UE; the target user plane network element deletes the target network resource allocated to the UE after receiving the request. The invention further provides a processing device for canceling network switch and a system thereof corresponding to the method. The invention has the advantage that the resource waste of a target network can be effectively avoided.

Description

Cancellation network switching processing method, Apparatus and system

Technical field

The present invention relates to networking technology area, relate in particular to a kind of cancellation network switching processing method, Apparatus and system.

Background technology

In some cases, for example, as subscriber equipment (User Equipment, when UE) current place network environment worsens, UE need be switched to another network from current network, this is comprising from third generation partner program (3rd Generation Partner Project, 3GPP) network four kinds of switch instances switching to non-3GPP network, switch to the 3GPP network, switch to the 3GPP network and switch to non-3GPP network from non-3GPP network from the 3GPP network from non-3GPP network.The 3GPP network is meant some networks of 3GPP tissue definition, except comprising traditional GPRS (General Packet Radio Service, GPRS) network and universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) network, also comprise 3GPP Long Term Evolution (Long Time Evolution, LTE) network; Non-3GPP network is meant some access networks of non-3GPP tissue definition, as WLAN (wireless local area network) (Wireless Local Area Network, WLAN), micro-wave access global inter communication (Worldwide Interoperability for Microwave Access, Wimax), (Code Division Multiple Access CDMA) waits network in the code division multiple access access.

Switching to the 3GPP network with non-3GPP network below is the present network switching flow of example explanation, more specifically, be with non-3GPP cdma network high speed grouped data (High Rate Packet Data, HR D) network switches to evolved UMTS Access Network (Evolved UMTS Terrestrial Radio Access Network, the E-UTRAN) network among the 3GPP LTE.

For 3GPP LTE network is had a understanding, at first the E-UTRAN network architecture is introduced below in conjunction with Fig. 1.Among Fig. 1, E-UTRAN is used to realize all and evolved network function associated; (Mobility Management Entity MME) mainly is responsible for mobile management and session management to Mobility Management Entity, comprises the management of user's context and mobile status, distributing user identity temporary mark etc.; Gateway (Serving Gateway, Serving GW) is UE (User Equipment, the UE) user entity of access core net, the interface of termination E-UTRAN; Grouped data network gateway (Packet Data Network-Gateway, PDN GW) is the user's face anchor point network element between 3GPP network and the non-3GPP network, stops and external packet data (Packet Data Network, PDN) interface of network; Between Serving GW and the PDN GW interface can adopt GPRS Tunnel Protocol (GPRS Tunneling Protocol, GTP) or act on behalf of mobile Internet Protocol (Proxy Mobile Internet Protocol, PMIP); (Home Subscriber Server HSS) is used for storing user subscription information to the user attaching server; (Policy and Charging Rule Function PCRF) is used for policy control decision and flow based charging controlled function to the "Policy and Charging Rules Function entity; Authenticating, authorize accounting server (Authentication, Authorization and Accounting Server, AAA Server) is used for UE is carried out access authentication, mandate and billing function; (Serving GPRS switching support node SGSN) is used for realizing functions such as GPRS network routing forwarding, mobile management and user profile storage to the service GPRS support node; UMTS Terrestrial radio access network (UMTS Terrestrial Radio Access Network, UTRAN), GSM EDGE Radio Access Network (GSM/EDGE Radio Access Network, GERAN), be used for realizing all and the wireless function associated of existing GPRS/UMTS network.Need to prove that LTE is in conceptual phase at present, Fig. 1 provides a kind of possible LTE network diagram.

Participating in Fig. 2, be 3GPP network and the network coexisted configuration diagram of non-3GPP, more specifically, is E-UTRAN network shown in Figure 1 and CDMA high speed grouped data (High Rate Packet Data, HRPD) the coexistence framework schematic diagram of network.Wherein, MME and HRPD access network entity (HRPDAccess Network, HRPD AN have the mobile management network element function and the access network element function of HRPD network concurrently) by the S101 interface communication, are used to transmit the signaling between MME and the HRPD AN; (Packet Data Serving Node PDSN) is user's veil unit in the HRPD network to packet data serving node, and the user's face that is used to carry out the HRPD network is handled.

Participate in Fig. 3, the optimization switching flow figure for from the HRPD network to the E-UTRAN network comprises:

Step 301:UE is in the HRPD network insertion;

Step 302:UE or HRPD AN decision are carried out and are switched to the E-UTRAN network;

Step 303:UE sends by the HRPD network and adheres to request (Attach Request) message to MME;

Step 304: carry out authentication procedure;

Step 305:MME sends the position and upgrades (Update Location) message to HSS, obtains the subscription data of UE; HSS returns the subscription data of UE, comprises the PDN GW address information that UE uses;

Step 306:MME selects Serving GW, sends to Serving GW and creates default bearer request (Create Default Bearer Request) message;

Step 307: if the interface protocol between Serving GW and the PDN GW is GTP, then Serving GW sends and creates carrying request (Create Bearer Request) message to PDN GW; PDN GW returns and creates carrying response (Create Bearer Response) message to Serving GW;

Step 308:Serving GW returns and creates default bearer response (Create Default Bearer Response) message to MME;

Step 309:MME sends re-positioning request (Relocation Request) message and sets up the wireless side resource to evolved base station (eNodeB) the request eNodeB among the E-ETRAN; ENodeB finishes and returns re-positioning request after the establishment of wireless side resource and confirm that (Relocation Request Acknowledge) message gives MME;

Step 310:MME sends more, and new bearer request (Update Bearer Request) message arrives eNodeB to the downlink user face path that Serving GW upgrades Serving GW; Serving GW returns more, and new bearer response (Update Bearer Response) message arrives MME;

Step 311:MME sends S101 switching command HO Command message to HRPD AN, comprises Attach Accept message and HO Command message in the message;

Step 312:HRPD AN sends HRPD AN L2 message to UE, comprises in the message and adheres to acceptance (Attach Accept) message and HO Command message;

Step 313:UE switches to the E-UTRAN network, sends to switch to finish (HO Complete) message to eNodeB;

Step 314:eNodeB sends reorientation and finishes (Relocation Complete) message to MME, and notice MME UE has switched to the E-UTRAN network;

Step 315:MME sends more new bearer request (Update Bearer Request) message and gives Serving GW;

Step 316:Serving GW notice PDN GW switches user plane path to Serving GW; If the interface protocol between Serving GW and the PDN GW uses the GTP agreement, then Serving GW sends Update Bearer Request message to PDN GW, and PDN GW switches user plane path and return Update Bearer Response message to Serving GW behind Serving GW.

If the interface protocol between Serving GW and the PDN GW uses the PMIP agreement, then Serving GW sends agent binding update (Proxy Binding Update, Proxy BU) message is given PDN GW, PDN GW switch user plane path behind the Serving GW back substitution reason binding acknowledgement (Proxy Binding Acknowledge, Proxy BA) message to Serving GW.

Step 317:Serving GW returns Update Bearer Response message and gives MME.

The step that dotted line is represented among Fig. 3 is optional.

The Attach flow process of step 301 in this flow process～step 312 generally also is referred to as pre-registration (pre-registration) or is referred to as to optimize to switch (Optimized Handover), and registered in advance was to target access network when promptly UE also resided in the source access network.The present application people finds after deliberation, in some cases, after pre-registration, need to cancel the network handover operation, the for example covering of shifting out objective network during in pre-registration stage at the objective network ecological deterioration situation that simultaneously the source network environment is good or UE, at this moment can be with the network handover cancelling, but, then there is not concrete technical scheme for how cancelling the network switching at present, this can cause objective network is the waste of UE pre-registration allocation of network resources.With above-mentioned flow process for being example, UE is also when source network, respectively in above-mentioned steps 307 and step 310, just created the resource that the 3GPP access network uses among the Serving GW of objective network and the PDN GW, when UE gets back to source HRPD network when UE handover cancelling or optimization handover cancelling or pre-registration cancellation, how the resource that these objective networks are created is handled, and prior art does not also have mechanism to finish.

Summary of the invention

In view of this, the purpose of the embodiment of the invention provides a kind of cancellation network switching processing method, Apparatus and system, to solve the problem of target network resource waste.

For this reason, the embodiment of the invention adopts following technical scheme:

A kind of cancellation network switching processing method, comprise: after receiving the handover cancelling notification message of source access network element or UE initiation, target mobility management network element notification target user veil unit deletion resource, described target mobility management network element increases indicating bit information in described deleting bearing request message, notify the described deleting bearing request message of described targeted customer's veil unit owing to handover cancelling causes; The target network resource of distributing into described UE is deleted by described targeted customer's veil unit after receiving described notice;

Described method also comprises:

Described target mobility management network element notification target access network element discharges resource;

If it is because handover cancelling causes that described targeted customer's veil unit finds described deleting bearing request message, then described targeted customer's veil unit does not notify user's face anchor point network element to discharge resource, and wherein, described targeted customer's veil unit comprises Serving GW.

A kind of mobile management network element of cancelling the network switching, comprising: handover cancelling is known the unit, is used for receiving handover cancelling message from source access network element or UE; Deleting load-bearing is informed the unit, after described handover cancelling message knows that the unit receives described handover cancelling message, is used for the resource that the deletion of notification target user veil unit distributes for UE.

A kind of user's veil unit that cancels the network switching, comprising: deleting load-bearing is known the unit, is used for receiving the notification message that resource discharges from target mobility management network element; The deleting load-bearing performance element after described deleting load-bearing knows that the unit receives the notification message of described resource release, is used to delete the target network resource of distributing into UE.

A kind of UE that cancels the network switching,, comprising: the handover cancelling judging unit is used to judge whether to carry out handover cancelling; Handover cancelling is informed the unit, when described handover cancelling judging unit is determined to carry out handover cancelling, is used for sending the handover cancelling notification message to target mobility management network element.

A kind of user's face anchor point network element, comprising: deleting load-bearing is known the unit, is used for receiving deleting bearing request or agent binding update messages from user's veil unit; The deleting load-bearing performance element after described deleting load-bearing knows that the unit receives described deleting bearing request or agent binding update messages, is used to delete the target network resource into user equipment allocation.

A kind of system that cancels the network switching, comprise UE, source access network element, target mobility management network element and targeted customer's veil unit, it is characterized in that, described UE or source access network element, judge whether to carry out handover cancelling, if send the handover cancelling notification message to target mobility management network element; Described target mobility management network element after receiving described handover cancelling notification message, is used for the deletion of notification target user veil unit and discharges resource for resource and the notification target access network element that UE distributes; And in described deleting bearing request message, increase indicating bit information, notify the described deleting bearing request message of described targeted customer's veil unit owing to handover cancelling causes; Described targeted customer's veil unit after receiving described notice, is used to delete the target network resource of distributing into described UE; And if find that described deleting bearing request message is because handover cancelling causes, then do not notify user's face anchor point network element to discharge resource, wherein, described targeted customer's veil unit comprises Serving GW.

As seen, behind the handover cancelling notification message that receives source access network element or UE initiation, the resource that the deletion of target mobility management network element notification target user veil unit distributes for UE, the deletion of ideal user's veil unit is the target network resource of described UE distribution, thereby can effectively avoid the wasting of resources of objective network.

Description of drawings

Fig. 1 is a prior art E-UTRAN configuration diagram;

Fig. 2 is prior art E-UTRAN and HRPD coexistence framework schematic diagram;

Fig. 3 for prior art HRPD to E-UTRAN switching flow figure;

Fig. 4 is the embodiment of the invention one flow process Fig. 1;

Fig. 5 is that the embodiment of the invention one cancellation HRPD is to E-UTRAN switching flow Fig. 2;

Fig. 6 is the embodiment of the invention two flow process Fig. 1;

Fig. 7 is that the embodiment of the invention two cancellation HRPD are to E-UTRAN switching flow Fig. 2;

Fig. 8 is the embodiment of the invention three flow charts 1;

Fig. 9 is that the embodiment of the invention three cancellation E-UTRAN are to HRPD switching flow Fig. 2;

Figure 10 is the embodiment of the invention four flow charts 1;

Figure 11 is that the embodiment of the invention four cancellation E-UTRAN are to HRPD switching flow Fig. 2;

Figure 12 is the embodiment of the invention five flow charts 1;

Figure 13 is switching flow Fig. 2 between the embodiment of the invention five cancellation 3GPP networks;

Figure 14 is the embodiment of the invention six flow charts 1;

Figure 15 is switching flow Fig. 2 between the non-3GPP network of the embodiment of the invention six cancellations;

Figure 16 is the embodiment of the invention seven flow charts 1;

Figure 17 is switching flow Fig. 2 between the non-3GPP network of the embodiment of the invention seven cancellations.

Embodiment

The embodiment of the invention is at the deficiency of existing scheme target network resource waste, a kind of method that network switches of cancelling is proposed, promptly, after receiving handover cancelling message, targeted customer's facial canal reason entity (for example, Serving GW among the 3GPP network E-UTRAN, PDSN among the non-3GPP network HRPD) will discharge for the target network resource that UE distributes, and for UE distributes under the situation of target network resource, PDN GW also will discharge in the resource that objective network distributes for UE at PDN GW.Utilize the embodiment of the invention, can in time discharge objective network is the Internet resources that UE distributes, and reduces the wasting of resources.

The embodiment of the invention one and embodiment two introduce the cancellation scheme of switching from non-3GPP network to the 3GPP network, embodiment three and embodiment four introduce the cancellation scheme of switching to non-3GPP network from the 3GPP network, embodiment five introduces the cancellation scheme of switching between the 3GPP network, and embodiment six introduces the cancellation scheme of switching between the non-3GPP network.

At first introduce the inventive method embodiment one, cancellation HRPD switches to the network of E-UTRAN.

Referring to Fig. 4, be method embodiment one flow process Fig. 1, comprising:

Step 401:UE or HRPD AN send handover cancelling (Handover Cancel or Detach Request) notification message through the network condition test to MME, inform that the cancellation network switches;

Step 402:MME sends deleting bearing request (Delete Bearer Request) message to Serving GW;

Step 403:Serving GW deletes the resource of distributing for UE in the E-UTRAN network, and is released to the resource that UE distributes by Delete Bearer Request or agent binding update (Proxy BU) notice PDN GW in target access network;

The resource that step 404:PDN GW deletion distributes in the E-UTRAN network for UE.

Referring to Fig. 5, be method embodiment one detailed process Fig. 2, comprising:

Step 501:UE arrives the E-UTRAN network by the pre-switch of HRPD network;

Particularly, finish operation by step 301～step 310 in the execution graph 3 from the pre-switch of HRPD network to the E-UTRAN network.

Step 502:MME sends S101 HO Command message to HRPD AN, comprises Attach Accept and HO Command message in the message;

Step 503: if the handover cancelling decision is carried out by HRPD AN and HRPD AN carries out handover cancelling operation (finding the covering that UE has shifted out the E-UTRAN network as HRPD AN) through network condition test decision, then HRPD AN sends handover cancelling (Handover Cancel) message to UE; Otherwise HRPD AN sends HRPD L2 message to UE, comprises Attach Accept and HO Command message in the message;

Step 504:UE or HRPD AN notice MME cancellation are switched;

1) UE notice MME cancellation is switched:

Need to prove that the switching here is the switching of broad sense, comprise switching, optimize and switch and pre-registration.

As step 503, the handover cancelling decision is made by HRPD AN, and HRPD AN sends Handover Cancel message to UE notice UE handover cancelling, and UE reinforms the MME cancellation and switches.

Perhaps, handover cancelling is made (finding oneself to have shifted out the covering of E-UTRAN network as UE) by UE, and then UE carries out handover cancelling by HRPD network transmission Handover Cancel message or Detach Request message to MME notice MME.

When UE when MME sends Detach Request message, UE increases indicating bit information in Detach Request message, to notify this Detach Request message of MME owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration cancel " causes.

Indicating bit information is specifically as follows one of following mode:

1. UE increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Detach Request message;

2. UE increases " Detach Type " cell in Detach Request message, and this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

3. UE increases " Cause " cell in Detach Request message, and this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

This indicating bit cell is optional.

If UE does not carry this indicating bit cell, if then MME receives and finds after the Detach Request message to be pre-registered among the MME before the UE, then MME thinks that the Detach Request message received causes owing to Handover Cancel or Optimized Handover Cancel or pre-registration cancel.

2) HRPD AN sends Handover Cancel message to MME, and the decision cancellation is switched.

Step 505:MME separates (Detach) with UE after receiving above-mentioned Handover Cancel or Detach Request message from MME;

If exist S1 to connect between MME and the eNodeB, then MME sends S1 resource release command (S1Release Command) message to eNodeB notice eNodeB release S1 connection resource and Access Network side bearing resource; ENodeB returns S1 Release Complete message to MME after discharging S1 connection resource and Access Network side bearing resource, thereby finishes the resource dispose procedure of Access Network side.

Step 506:MME sends deleting bearing request (Delete Bearer Request) message to Serving GW, the resource that request Serving GW deletion distributes for UE;

MME increases indicating bit information to notify this Delete Bearer Request message of Serving GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-re gistration Cancel " causes in Delete Bearer Request message.

Indicating bit information is specifically as follows one of following mode:

(1) MME increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Delete Bearer Request message;

(2) MME increases " Delete Type " cell in Delete Bearer Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

(3) MME increases " Cause " cell in Delete Bearer Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

Need to prove that step 505 and step 506 do not have the sequencing requirement.

The resource that step 507:Serving GW deletion distributes at E-UTRAN for UE, the bearer context that deletion distributes at E-UTRAN for UE as Serving GW.

If the interface protocol between Serving GW and the PDN GW uses the PMIP agreement, notice PCRF was with the information deletions of preserving such as Serving GW address after then Serving GW received above-mentioned message.

Step 508:Serving GW sends Delete Bearer Request message or Proxy BU message to PDN GW, the resource that notice PDN GW deletion distributes in the E-UTRAN access network for UE;

[1] to have notified PDN GW in pre-registration stage be UE Resources allocation in the E-UTRAN access network if the interface protocol between Serving GW and the PDN GW is GTP and Serving GW, and then Serving GW sends Delete Bearer Request message to PDN GW.

Wherein, Serving GW increases indicating bit information to notify this Delete Bearer Request message of PDN GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes in Delete Bearer Request message, PDNGW will switch to user plane path user's veil unit of source HRPD access network like this, and is released to the resource that UE distributes in the E-UTRAN access network.

Indicating bit information is specifically as follows one of following mode:

A) Serving GW increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Delete Bearer Request message.

B) Serving GW increases " Delete Type " cell in Delete Bearer Request message, and this cell of Serving GW is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

C) Serving GW increases " Cause " cell in Delete Bearer Request message, and this cell of Serving GW is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

[2] if when the interface protocol between Serving GW and the PDN GW uses PMIP agreement and Serving GW to find that user plane path on the PDN GW has switched to Serving GW (be Serving GW send Proxy BU message informing PDN GW in pre-registration stage switch user plane path to ServingGW), then Serving GW sends Proxy BU message and arrives PDN GW.

Wherein, Serving GW in Proxy BU message, increase indicating bit information with this Proxy BU message of notice PDN GW be since " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " cause and Proxy BU message in the Lifetime cell be set to 0, PDN GW will switch to user plane path user's veil unit of source HRPD access network like this, and is released to the resource that UE distributes in the E-UTRAN access network.

Indicating bit information is specifically as follows one of following mode:

A) Serving GW increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-re gistration Cancel Indication " in Proxy BU message.

B) Serving GW increases " Update Type " cell in Proxy BU message, and this cell of Proxy BU is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel Indication ".

C) Serving GW increases " Cause " cell in Proxy BU message, and this cell of Serving GW is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

After step 509:PDN GW receives Delete Bearer Request message or Proxy BU message, if find that these message are owing to handover cancelling causes, then PDN GW deletes the resource of distributing for UE in the E-UTRAN access network, the banding cache list item of creating as the bearer context (Bearer Context) that distributes in the E-UTRAN access network for UE or for UE (Binding Cache Entry) keeps the IP address resource of UE;

If PDN GW has switched to user plane path Serving GW in the program of pre-registration, after then PDN GW receives above-mentioned message, user plane path is switched back to PDSN network element in the HRPD network of source, obtain the strategy of UE the HRPD network of source and charge control (PCC from PCRF, Policy and Charging Control) rule is recovered the resource between PDN GW and the source HRPD network.

Step 510:PDN GW returns deleting bearing response (Delete Bearer Response) message or Proxy BA to Serving GW;

Step 511:Serving GW returns Delete Bearer Response message to MME;

Step 512:MME returns handover cancelling and confirms (Handover Cancel Acknowledge) message or attachment removal acceptance (Detach Accept) message to UE, and perhaps MME returns Handover Cancel Acknowledge message to HRPD AN.

The step that dotted line is represented among Fig. 5 is optionally, for Fig. 7,9,11,13 and 15 similar.

Embodiment one this mechanism also can be applied to various non-3GPP and handle to the handover cancelling of 3GPP network, handle to the handover cancelling of UTRAN network as Wimax, at this moment, the HRPD access network will be replaced by the Wimax access network, the MME network element will replace with the SGSN network element in the UTRAN network, and the eNodeB network element among the E-UTRAN will replace with the RNC network element in the UTRAN network, and other handling process and mechanism are not described in detail here with the processing among the top embodiment.

Following introduction method embodiment two, it also is the scheme of describing from HRPD to the E-UTRAN handover cancelling, in the foregoing description one, be to be the resource that UE distributes at E-UTRAN by Serving GW notice PDN GW deletion, and in the present embodiment, be the resource that employing source mobile management network element (for example HRPD AN) distributes at target E-UTRAN for UE by source user veil unit (as PDSN) notice PDN GW deletion.

Referring to Fig. 6, be method embodiment two flow process Fig. 1, comprising:

Switching or the pre-registration of step 601:UE or HRPD AN decision cancellation UE send Handover Cancel message or Detach Request message to MME;

Step 602:MME sends Delete Bearer Request message to Serving GW, and Serving GW discharges resource;

Step 603:HRPD AN sends A11 Registration Request message to PDSN;

Step 604:PDSN sends Proxy BU message to PDN GW;

Step 605:PDN GW switches back to PDSN network element in the HRPD network of source with user plane path, and PDN GW discharges the resource among the objective network E-UTRAN simultaneously.

Referring to Fig. 7, be method embodiment two detailed process Fig. 2, wherein step 701～step 706 is similar with embodiment one, comprising:

Step 701 to step 705 with the processing of step 501 to step 505.

Step 706:MME sends the resource that Delete Bearer Request message is distributed for UE to Serving GW request Serving GW deletion, and Serving GW discharges resource after receiving message, returns Delete Bearer Response message then to MME;

Wherein, MME increases indicating bit information to notify this Delete Bearer Request message of Serving GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes in Delete Bearer Request message.

The concrete processing of indicating bit information is with the processing among the embodiment one.

Need to prove that step 705 and step 706 do not have the sequencing requirement.

Step 707: if Handover Cancel/Detach Request message that MME receives is sent by UE, then MME sends Handover Cancel Acknowledge/Detach Accept message to UE.

Step 708: if Handover Cancel message that MME receives is sent by HRPD AN, then MME sends Handover Cancel Acknowledge message to HRPD AN; If the Handover Cancel message that MME receives is sent by UE, then MME sends Handover Cancel message to HRPDAN;

After step 709:HRPD AN receives above-mentioned Handover Cancel Acknowledge or Handover Cancel message, if finding above-mentioned message is HRPD to the E-UTRAN handover cancelling or optimizes handover cancelling or the pre-registration cancellation causes, then HRPD AN transmission A11 register requirement (A11 Registration Request) message or A11 path are revised request (A11 Path Update Request) message and to PDSN request PDSN notice PDN GW user plane path are switched to PDSN, notify PDN GW to delete the resource of distributing for UE simultaneously in target access network.

HRPD AN in A11 Registration Request message, increase indicating bit information with notice PDSN this A11 Registration Request message owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes, and the Lifetime cell is set to non-0 a numerical value.

Indicating bit information is specifically as follows one of following mode:

A) HRPD AN increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in A11 Registration Request message;

B) HRPD AN increases " Registration Type " cell in A11 Registration Request message, and this cell of HRPD AN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) HRPD AN increases " Cause " cell in A11 Registration Request message, and this cell of HRPD AN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

After step 710:PDSN receives above-mentioned A11 Registration Request message or A11 Path Update Request message, when determining user's face have been switched to E-UTRAN, send Proxy BU message to PDN GW, PDN GW discharges target network resource, recovers the source network resource;

PDSN increases indicating bit information to notify this Proxy BU message of PDN GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes in Proxy BU message, and the Lifetime cell is set to non-0 a numerical value, like this, PDN GW will switch to user plane path source user veil unit (PDSN), and is released to the resource that UE distributes in the E-UTRAN access network.

Indicating bit information is specifically as follows one of following mode:

A) PDSN increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Proxy BU message;

B) PDSN increases " Registration Type " cell in Proxy BU message, and this cell of PDSN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) PDSN increases " Cause " cell in Proxy BU message, and this cell of PDSN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

PDN GW operation is specially, after PDN GW receives above-mentioned message, user plane path is switched back to the PDSN network element, PDN GW discharges the resource of E-UTRAN side simultaneously, as PDN GW is the bearer context (Bearer Context) that distributes in the E-UTRAN access network of UE or the banding cache list item (Binding Cache Entry) created for UE, keeps the IP address resource of UE; And after PDN GW received above-mentioned message, contact PCRF obtained the PCC rule of UE in the HRPD network of source, recovers the resource between PDNGW and the source HRPD network.

Step 711:PDSN returns A11 Registration Reply message or A11 Path Update Reply message arrives HRPD AN;

Step 712: if HRPD AN receives the Handover Cancel message that MME sends in step 708 in the step, then HRPD AN returns Handover Cancel Acknowledge message to MME.

Embodiment two this mechanism also can be applied to various non-3GPP and handle to the handover cancelling of 3GPP network, handle to the handover cancelling of UTRAN network as Wimax.At this moment the HRPD access network will be replaced by the Wimax access network, the MME network element will replace with the SGSN network element in the UTRAN network, and the eNodeB network element among the E-UTRAN will replace with the RNC network element in the UTRAN network, other handling process and mechanism are not described in detail here with the processing among the top embodiment.

Introduce the inventive method embodiment three below, cancellation E-UTRAN switches to the network of HRPD.

Referring to Fig. 8, be method embodiment three flow charts 1, comprising:

The switching of step 801:UE or eNodeB decision cancellation UE sends Handover Cancel message or HRPD Deregistration to HRPD AN;

Step 802:HRPD AN sends A11 register requirement (A11 Registration Request) message to PDSN;

The resource that step 803:PDSN deletion distributes in the HRPD network for UE, and notice PDN GW deletion is the resource of UE in the HRPD network allocation;

Step 804:PDN GW deletion is the resource of UE in the HRPD network allocation.

Referring to Fig. 9, be method embodiment three detailed process Fig. 2, comprising:

Step 901:UE arrives the HRPD network by the pre-switch of E-UTRAN network;

Step 902:HRPD AN sends S101 HO Command message to MME, comprises the HRPD transmission channel in the message and distributes (TCA, Traffic Channel Assignment) message;

Step 903:MME sends reorientation order (Relocation Command) message to eNodeB, comprises HRPD TCA message in the message;

Step 904: if the handover cancelling decision is carried out by eNodeB and eNodeB carries out handover cancelling operation (finding the covering that UE has shifted out the HRPD network as eNodeB) through network condition test decision, then eNodeB sends handover cancelling (Handover Cancel) notification message to UE; Otherwise eNodeB sends HO Command message to UE, and order UE switches to the HRPD network, comprises HRPD TCA message in the message;

The switching of step 905:UE or eNodeB notice HRPD AN cancellation UE.Notice is specifically as follows:

1] UE notice HRPD AN cancellation is switched:

As step 904, the handover cancelling decision is made by eNodeB, and eNodeB sends Handover Cancel message to UE notice UE handover cancelling, and UE reinforms HRPD AN cancellation and switches.

Perhaps, the handover cancelling decision is made (finding oneself to have shifted out the covering of HRPD network as UE) by UE, then UE sends Handover Cancel message to HRPD AN by the E-UTRAN network, perhaps UE sends HRPD Deregistration message to HRPD AN, the switching of notice HRPD AN cancellation UE.

UE increases indicating bit information in HRPD Deregistration message, to notify this HRPD Deregistration message of HRPD AN owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes.

Indicating bit information is specifically as follows one of following mode:

I.UE increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in HRPD Deregistration message.

Ii.UE increases " Deregistration Type " cell in HRPD Deregistration message, this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

Iii.UE increases " Cause " cell in HRPD Deregistration message, this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

This indicating bit cell is optional.

If UE does not carry this indicating bit cell, if then HRPD AN receives and finds after the HRPD Deregistration message to be pre-registered among the HRPD AN before the UE, then HRPD AN think the HRPD Deregistration message received owing to Handover Cancel or or Optimized Handover Cancel or Pre-registration Cancel cause.

2] switching of eNodeB decision cancellation UE, eNodeB sends Handover Cancel message to HRPDAN.

Step 906:HRPD AN separates (Detach) with UE from HRPD AN after receiving above-mentioned Handover Cancel or HRPD Deregistration message;

HRPD AN sends A11 Registration Request message or A11 Deregistration Request message is deleted the resource of distributing for UE to PDSN request PDSN;

HRPD AN increases indicating bit information in A11 Registration Request message, owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes, and the Lifetime cell is set to 0 with notice PDSN this A11 Registration Request message.

Indicating bit information is specifically as follows one of following mode:

1-1 HRPD AN increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in A11 Registration Request message;

1-2 HRPD AN increases " Registration Type " cell in A11 Registration Request message, this cell of HRPD AN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

1-3 HRPD AN increases " Cause " cell in A11 Registration Request message, this cell of HRPDAN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

After step 907:PDSN receives above-mentioned A11 Registration Request message, be released to the resource that UE distributes, notice PCRF is with the information deletions of preserving such as PDSN address;

Step 908: if when PDSN finds that user plane path on the PDN GW has switched to PDSN (be PDSN sent Proxy BU message informing PDN GW processing stage of pre-registration switch user plane path to PDSN), then PDSN sends Proxy BU message and arrives PDN GW notice PDN GW switching user plane path to Serving GW, notifies PDN GW deletion to be the resource of UE in the target access network distribution simultaneously;

PDSN in Proxy BU message, increase indicating bit information with this Proxy BU message of notice PDN GW be since " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " cause and Proxy BU message in the Lifetime cell be set to 0, PDN GW will switch to user plane path user's veil unit of source E-UTRAN access network like this, and is released to the resource that UE distributes in the HRPD access network.

Indicating bit information is specifically as follows one of following mode:

A_1 PDSN increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Proxy BU message;

A_2 PDSN increases " Update Type " cell in Proxy BU message, this cell of Proxy BU is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

A_3 PDSN increases " Cause " cell in Proxy BU message, this cell of PDSN is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

After step 909:PDN GW receives above-mentioned Proxy BU message, user plane path is switched back to Serving GW network element in the E-UTRAN network of source, the resource that PDN GW deletion simultaneously distributes in the HRPD access network for UE, as the banding cache list item (Binding Cache Entry) that distributes for UE, the IP address resource that keeps UE, PDN GW obtains the PCC rule of UE the E-UTRAN network of source from PCRF, recovers the resource between PDN GW and the source E-UTRAN network;

Step 910:PDN GW returns Proxy BA message to PDSN;

Step 911:PDSN returns A11 Registration Reply message or A11 Deregistration Reply message arrives HRPD AN;

Step 912:HRPD AN returns Handover Cancel Acknowledge message or HRPDDeregistration Acknowledge message arrives UE, and perhaps HRPD AN returns Handover Cancel Acknowledge message to eNodeB.

Embodiment three this mechanism also can be applied to 3GPP and handle to the handover cancelling of non-3GPP network, handle to the handover cancelling of Wimax network as UTRAN.At this moment the HRPD access network will be replaced by the Wimax access network, PDSN will be replaced by the ASN-GW in the Wimax network, the MME network element will replace with the SGSN network element in the UTRAN network, and the eNodeB network element among the E-UTRAN will replace with the RNC network element in the UTRAN network, other handling process and mechanism are not described in detail here with the processing among the top embodiment.

Following introduction method embodiment four, it is the scheme of describing from E-UTRAN to the HRPD handover cancelling, in the foregoing description three, be to be the resource that UE distributes at HRPD by PDSN notice PDN GW deletion, and in the present embodiment, be the resource that adopts source network network element (for example Serving GW) notice PDN GW deletion to distribute at HRPD for UE.

Referring to Figure 10, be method embodiment four flow charts 1, comprising:

Switching or the pre-registration of step 1001:UE or eNodeB decision cancellation UE send Handover Cancel message or HRPD Deregistration message to HRPD AN;

Step 1002:HRPD AN sends A11 Registration Request message to PDSN, and PDSN is released to the HRPD Internet resources that UE distributes;

Step 1003:MME sends Update Bearer Request message to Serving GW;

Step 1004:Serving GW sends Update Bearer Request message to PDN GW;

Step 1005:PDN GW switches back to network element Serving GW in the E-UTRAN network of source with user plane path, and PDN GW discharges the resource among the target access network HR D simultaneously.

Referring to Figure 11, be method embodiment four detailed process Fig. 2, comprising:

Step 1101 to step 1105 with the processing of step 901 to step 905.

Step 1106:HRPD AN separates (Detach) with UE from HRPD AN after receiving above-mentioned Handover Cancel or HRPD Deregistration message;

HRPD AN sends A11 Registration Request message or A11 Degistration Request deletes the resource of distributing for UE to PDSN request PDSN; PDSN discharges resource after receiving above-mentioned A11 Registration Request message or A11 Degistration Request, returns A11 Registration Reply message or A11 Degistration Reply message then to HRPD AN;

Wherein, HRPD AN increases indicating bit information in A11 Registration Request message, owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes, and the Lifetime cell is set to 0 with notice PDSN this A11 Registration Request message.

The indicating bit information processing is with the processing among the embodiment three.

Step 1107: if Handover Cancel/HR D Deregistration message that HRPD AN receives is sent by UE, then HRPD AN sends Handover Cancel Acknowledge/HRPDDeregistration Acknowledge message to UE;

Step 1108: if Handover Cancel message that HRPD AN receives is sent by eNodeB, then HRPD AN sends Handover Cancel Acknowledge message to MME; Otherwise HRPD AN sends Handover Cancel message to MME;

After step 1109:MME receives above-mentioned message, if finding above-mentioned message is E-UTRAN to the HRPD handover cancelling or optimizes handover cancelling or the pre-registration cancellation causes, then MME sends Update Bearer Request message and arrives Serving GW request Serving GW notice PDN GW switching user plane path to Serving GW, notifies PDN GW the resource that deletion distributes in the HRPD access network for UE simultaneously;

MME increases indicating bit information to notify this Update Bearer Request message of Serving GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes in Update Bearer Request message.

Indicating bit information is specifically as follows one of following mode:

A) MME increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Update Bearer Request message;

B) MME increases " Update Type " cell in Update Bearer Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) MME increases " Cause " cell in Update Bearer Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

Step 1110:Serving GW judges whether user plane path to be switched to objective network after receiving above-mentioned Update Bearer Request message, if send message informing PDN GW user plane path is switched back to Serving GW.

If the interface protocol between Serving GW and the PDN GW uses GTP, then Serving GW sends Update Bearer Request message to PDN GW.

If the interface protocol between Serving GW and the PDN GW uses PMIP, then Serving GW sends Proxy BU message to PDN GW.

Serving GW increases indicating bit information to notify this Proxy BU message of PDN GW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes in Proxy BU message or Update Bearer Request message, for Proxy BU message, Lifetime cell in the Serving GW Proxy BU message is set to non-0 a numerical value, and PDN GW will switch to user plane path Serving GW and be released to the resource that UE distributes in target access network like this.

Indicating bit information is specifically as follows one of following mode:

A) Serving GW increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Proxy BU message or Update Bearer Request message;

B) Serving GW increases " Registration Type " cell in Proxy BU message or Update Bearer Request message, and this cell of Serving GW is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) Serving GW increases " Cause " cell in Proxy BU message or Update Bearer Request message, and this cell of Serving GW is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

PDN GW switches back to Serving GW network element with user plane path after receiving above-mentioned message, and PDN GW discharges the resource of HRPD side simultaneously, as is the banding cache list item (Binding Cache Entry) that UE distributes in the HRPD side, keeps the IP address resource of UE.

Contact PCRF obtained the PCC rule of UE in the E-UTRAN network of source after PDN GW received above-mentioned message, recovered the resource between PDN GW and the source E-UTRAN network.

Step 1111:Serving GW sends Update Bearer Response message to MME.

Step 1112: if MME receives the Handover Cancel message that HR D AN sends in step 1108, then MME sends Handover Cancel Acknowledge message to HRPD AN; HRPD AN returns Handover Cancel Acknowledge message or HRPD Deregistration Acknowledge message arrives UE, and perhaps HRPD AN returns Handover Cancel Acknowledge message to eNodeB.

Embodiment four this mechanism also can be applied to 3GPP and handle to the handover cancelling of non-3GPP network, handle to the handover cancelling of Wimax network as UTRAN.At this moment the HRPD access network will be replaced by the Wimax access network, PDSN will be replaced by the ASN-GW in the Wimax network, the MME network element will replace with the SGSN network element in the UTRAN network, and the eNodeB network element among the E-UTRAN will replace with the RNC network element in the UTRAN network, other handling process and mechanism are not described in detail here with the processing among the top embodiment.

Introduce the inventive method embodiment five below, the network between the cancellation 3GPP network switches.

Referring to Figure 12, be method embodiment five flow charts 1, comprising:

The switching of the access network element decision cancellation UE of step 1201:UE or source access network sends Handover Cancel message or the Detach Request mobile management network element (as MME/SGSN) to target access network;

Step 1202: the mobile management network element of target access network sends Delete Bearer Request message to user entity, for example Serving GW;

The resource that step 1203:Serving GW deletion distributes in objective network for UE.

Referring to Figure 13, be embodiment five detailed process Fig. 2, comprising:

Step 1301:UE arrives objective network by the source network pre-switch;

Source network and objective network can be in the 3GPP network any, as GPRS, UMTS, E-UTRAN.

Step 1302: the access network element (NE of source network, Network Element) or the switching of UE decision cancellation UE, send Handover Cancel or Detach Request message mobile management network element (mobile management network element is also referred to as core network element) to the source access network;

The source access network element can be among BSS, RNC, the eNodeB, and the source mobile management network element can be among SGSN, the MME.

UE increases indicating bit information in Detach Request message, with notification source mobile management network element or this Detach Request message of target mobility management network element owing to " Handover Cancel " causes.

Indicating bit information is specifically as follows one of following mode:

1) UE increases " Handover Cancel Indication " in Detach Request message;

2) UE increases " Detach Type " cell in Detach Request message, and this cell of UE is set to " Handover Cancel ";

UE increases " Cause " cell in Detach Request message, this cell of UE is set to " Handover Cancel ".

This indicating bit cell is optional.

If UE does not carry this indicating bit cell, if then source mobile management network element or target mobility management network element are found UE pre-switch before in target access network after receiving Detach Request message, then source mobile management network element or target mobility management network element think that the Detach Request message of receiving is owing to Handover Cancel causes.

Step 1303: source mobile management network element transmission Handover Cancel or Detach Request message are to the mobile management network element (being the mobile management network element of target access network) of target access network;

Target mobility management network element can be among SGSN, the MME.

Step 1304: target mobility management network element is initiated user Detach flow process after receiving above-mentioned Handover Cancel or Detach Request message, and UE is separated from target mobility management network element.

Target mobility management network element notification target access network element discharges resource.If target access network is E-UTRAN, then MME sends S1 Release Command message to eNodeB notice eBodeB release resource; If target access network is UTRAN, then SGSN sends Iu Release Command message to RNC notice RNC release resource; If target access network is GERAN, then SGSN sends Delete PFC Request message to BSS notice BSS release resource.

Step 1305: target mobility management network element sends Delete Bearer Request message to Serving GW; Target mobility management network element increases indicating bit information to notify this Delete Bearer Request message of Serving GW owing to " Handover Cancel " causes in Delete Bearer Request message.

Indicating bit information is specifically as follows one of following mode:

A) target mobility management network element increases " Handover Cancel Indication " in Delete Bearer Request message;

B) target mobility management network element increases " Delete Type " cell in Delete Bearer Request message, and this cell of target mobility management network element is set to " Handover Cancel ";

C) target mobility management network element increases " Cause " cell in Delete Bearer Request message, and this cell of target mobility management network element is set to " Handover Cancel ".

If step 1306:Serving GW finds the deleting bearing request owing to handover cancelling causes after receiving above-mentioned message, then Serving GW does not notify PDN GW to discharge resource.

If the interface protocol between Serving GW and the PDN GW uses the PMIP agreement, after then Serving GW received above-mentioned Delete Bearer Request message, notice PCRF was with the information deletions of preserving such as Serving GW address;

Step 1307:Serving GW returns Delete Bearer Response message to target mobility management network element;

Step 1308: target mobility management network element returns Handover Cancel Acknowledge message or Detach Accept message arrives UE (by source access network element and source mobile management network element), and perhaps target mobility management network element is returned Handover Cancel Acknowledge message to source access network element (by the source mobile management network element).

Introduce the inventive method embodiment six below, the network of cancelling between the non-3GPP network switches.

Referring to Figure 14, be method embodiment six flow charts 1, comprising:

The switching of step 1401:UE or source access network element decision cancellation UE, send Handover Cancel message or Deregistration message to target mobility management network element, as the HRPDAN in the HRPD network, ASN GW (access business network gateway in the Wimax network, Access Service Network Gateway), EPDG in the wlan network (evolution packet data gateway, Evolved Packet Data Gateway);

Step 1402: target mobility management network element sends resource release request message to targeted customer's face entity, as the PDSN in the HRPD network, and ASN GW in the Wimax network, the EPDG in the wlan network, the resource that the deletion of request target user veil unit distributes for UE;

Need to prove that the embodiment of the invention does not limit the title of resource release request message.For different non-3 GPP access network networks, its message name is different, as being A11 Registration Request for this message in the HRPD network or being A11 Deregistration Request message, for the Wimax network, if its mobile management network element and user entity realize at ASN GW that all then this resource release request message just is inside story.

Step 1403: targeted customer's face entity is deleted the resource of distributing for UE in target access network, and is released to the resource that UE distributes by agent binding update (Proxy BU) message informing user face anchor point network element (PDN GW) in target access network;

The resource that step 1404:PDN GW deletion distributes in target access network for UE.

Referring to Figure 15, be embodiment five detailed process Fig. 2, comprising:

Step 1501:UE arrives objective network by the source network pre-switch;

Source network and objective network can be in the non-3GPP network any, as networks such as WLAN, Wimax and CDMA.

Step 1502: target mobility management network element sends switching command to the source mobile management network element;

Target mobility management network element (mobile management network element of target access network) can be the HRPD AN in the HRPD network, can be the ASN GW in the Wimax network, can be the ePDG in the wlan network.

Step 1503: source mobile management network element (mobile management network element of source access network) sends switching command to the source access network element;

Source access network element (access network element of source access network) can be the HRPD AN of HRPD network, can be the BS in the Wimax network (base station, Base Station).

Step 1504: if the handover cancelling decision is carried out by the source access network element and the source access network element is carried out handover cancelling operation (finding the covering that UE has shifted out target access network as the source access network element) through network condition test decision, then the source access network element sends handover cancelling (Handover Cancel) notification message to UE; Otherwise the source access network element sends switching command message to UE;

Step 1505:UE or the cancellation of source access network element notification target mobile management network element are switched;

1) UE notification target mobile management network element (mobile management network element of target access network) cancellation is switched:

As step 1504, the handover cancelling decision is made by the source access network element, and the source access network element sends Handover Cancel message to UE notice UE handover cancelling, and UE reinforms the mobile management network element cancellation switching of target access network.

Perhaps the handover cancelling decision is made (finding oneself to have shifted out the covering of target access network as UE) by UE, then UE sends Handover Cancel message or goes registration message to arrive target mobility management network element by the source access network, notification target mobile management network element handover cancelling.

When UE sends when removing registration message to target mobility management network element, UE increases indicating bit information in removing registration message this goes registration message owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration cancel " causes with the notification target mobile management network element.

Indicating bit information is specifically as follows one of following mode:

1. UE increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in removing registration message;

2. UE increases " Detach Type " cell in removing registration message, and this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

3. UE increases " Cause " cell in removing registration message, and this cell of UE is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

This indicating bit cell is optional.

If UE does not carry this indicating bit cell, after then target mobility management network element is received registration message, if find to be pre-registered in the mobile management network element of target access network before the UE, then target mobility management network element thinks that the registration message of receiving that goes causes owing to Handover Cancel or Optimized Handover Cancel or pre-registration cancel.

2) the source access network element sends Handover Cancel message to target mobility management network element, and the decision cancellation is switched.

Step 1506: target mobility management network element is separated (Detach) with UE after receiving above-mentioned Handover Cancel or removing registration message from target mobility management network element

Target mobility management network element sends resource release request (Resource Release Request) message to targeted customer's veil unit, the resource that the deletion of request target user veil unit distributes for UE;

Target mobility management network element increases indicating bit information in Resource Release Request message, with this Resource Release Request message of notification target user veil unit (user's veil unit of objective network) owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-re gistration Cancel " causes.

Indicating bit information is specifically as follows one of following mode:

(1) mobile management network element of target access network increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Resource Release Request message;

(2) mobile management network element of target access network increases " Delete Type " cell in Resource Release Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-re gistration Cancel ";

(3) mobile management network element of target access network increases " Cause " cell in Resource Release Request message, and this cell of MME is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

Step 1507: the resource that the deletion of targeted customer's veil unit distributes in target access network for UE.

After above-mentioned message was received by targeted customer's veil unit, notice PCRF was with the information deletions of preserving such as targeted customer's veil unit address.

Step 1508: if when the user plane path on the PDN GW has switched to targeted customer's veil unit (be user's veil unit of target access network sent Proxy BU message informing PDNGW in pre-registration stage switch the user veil unit of user plane path to target access network), then targeted customer's veil unit sends Proxy BU message to PDN GW;

Wherein, targeted customer's veil unit increases indicating bit information in Proxy BU message, to notify this Proxy BU message of PDNGW owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " causes, and the Lifetime cell in the Proxy BU message is set to 0, PDN GW will switch to user plane path source user veil unit like this, and is released to the resource that UE distributes in target access network.

Indicating bit information is specifically as follows one of following mode:

A) user's veil unit of target access network increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Proxy BU message.

B) user's veil unit of target access network increases " Update Type " cell in Proxy BU message, and this cell of Proxy BU is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel Indication ".

C) user's veil unit of target access network increases " Cause " cell in Proxy BU message, and this cell of user's veil unit of target access network is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-re gistration Cancel ".

After step 1509:PDN GW receives above-mentioned Proxy BU message, the resource that deletion distributes in target access network for UE, the banding cache list item of creating as the bearer context (Bearer Context) that distributes in the E-UTRAN access network for UE or for UE (Binding Cache Entry) keeps the IP address resource of UE;

If PDN GW has switched to user plane path targeted customer's veil unit in the program of pre-registration, after then PDN GW receives above-mentioned message, user plane path is switched back to source user veil unit, obtain the PCC rule of UE the access network of source from PCRF, recover the resource between PDN GW and the source access network.

Step 1510:PDN GW returns Proxy BA to targeted customer's veil unit;

Step 1511: targeted customer's veil unit returns resource and discharges response message to target mobility management network element;

Step 1512: target mobility management network element is returned handover cancelling and is confirmed (Handover Cancel Acknowledge) message or go accreditation verification (Deregistration Ack) message to UE that perhaps target mobility management network element is returned Handover Cancel Acknowledge message to the source access network element.

Following introduction method embodiment seven, it also is the scheme of describing handover cancelling between the non-3GPP, in the foregoing description six, be to be the resource that UE distributes in target access network by targeted customer's veil unit notice PDN GW deletion, and in the present embodiment, it is the resource that adopts source user veil unit (for example the PDSN of HRPD network, the ASN GW of Wimax network, the EPDG of wlan network etc.) notice PDN GW deletion to distribute in target access network for UE.

Referring to Figure 16, be method embodiment seven flow charts 1, comprising:

Switching or the pre-registration of step 1601:UE or source access network element decision cancellation UE send Handover Cancel message or go registration message to arrive target mobility management network element;

Step 1602: the resource that the deletion of target mobility management network element notification target user veil unit distributes in target access network for UE; The resource that user's veil unit deletion of target access network distributes for UE;

Step 1603: the source mobile management network element sends and upgrades path request message to source user veil unit;

Need to prove that the embodiment of the invention does not limit this title of upgrading path request message, for different non-3GPP networks, this message name may be different, as, for the HRPD network, this message is A11 Registration Request message.

Step 1604: source user veil unit sends Proxy BU message to PDN GW;

Step 1605:PDN GW switches back to source user veil unit with user plane path, and PDN GW discharges the resource in the target access network simultaneously.

Referring to Figure 17, be method embodiment seven detailed process Fig. 2, wherein,

Step 1701 to step 1707 with the processing of step 1501 to step 1507;

Step 1708: targeted customer's veil unit returns resource and discharges response message to target mobility management network element.

Step 1709: if Handover Cancel/Deregistration message that target mobility management network element is received is sent by UE, then target mobility management network element sends Handover Cancel Acknowledge/Deregistration Ack message to UE

Step 1710: if Handover Cancel message that target mobility management network element is received is sent by the source access network element, then target mobility management network element sends Handover Cancel Acknowledge message to the source mobile management network element; If the Handover Cancel message that target mobility management network element is received is sent by UE, then target mobility management network element sends Handover Cancel message to the source mobile management network element;

Step 1711: after the source mobile management network element is received above-mentioned Handover Cancel Acknowledge or Handover Cancel message, if finding above-mentioned message is the source access network to the target access network handover cancelling or optimizes handover cancelling or the pre-registration cancellation causes, then the source mobile management network element sends and upgrades path request (Update Path Request) message to source user veil unit, the notice PDN GW of request source user veil unit switches to source user veil unit with user plane path, notifies PDN GW the resource that deletion distributes in target access network for UE simultaneously.

The source mobile management network element increases indicating bit information in upgrading path request message, this upgrades path request message owing to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-re gistration Cancel " causes with notification source user veil unit.

Indicating bit information is specifically as follows one of following mode:

A) mobile management network element of source access network increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in upgrading path request message;

B) mobile management network element of source access network increases " Registration Type " cell in upgrading path request message, and this cell of the mobile management network element of source access network is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) mobile management network element of source access network increases " Cause " cell in upgrading path request message, and this cell of the mobile management network element of source access network is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

Need to prove that the embodiment of the invention does not limit the message name that comprises indicating bit information, for different non-3GPP networks, this message name may be different, as, for the HRPD network, this message is A11 Registration Request message.

Step 1712: after above-mentioned renewal path request message is received by source user veil unit, send Proxy BU message to PDN GW, PDN GW discharges target network resource, recovers the source network resource;

Source user veil unit increases indicating bit information in Proxy BU message, with this Proxy BU message of notice PDN GW be since " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel " cause and Proxy BU message in the Lifetime cell be set to non-0 a numerical value, like this, PDN GW will switch to user plane path source user veil unit and be released to the resource that UE distributes in target access network.

Indicating bit information is specifically as follows one of following mode:

A) user's veil unit of source access network increases " Handover Cancel Indication " or " Optimized Handover Cancel Indication " or " Pre-registration Cancel Indication " in Proxy BU message;

B) user's veil unit of source access network increases " Registration Type " cell in Proxy BU message, and this cell of user's veil unit of source access network is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ";

C) user's veil unit of source access network increases " Cause " cell in Proxy BU message, and this cell of user's veil unit of source access network is set to " Handover Cancel " or " Optimized Handover Cancel " or " Pre-registration Cancel ".

PDN GW operation is specially, after PDN GW receives above-mentioned message, user plane path is switched back to source user veil unit, PDN GW discharges (is the banding cache list item (Binding Cache Entry) that UE creates as PDN GW) with the resource of target access network side in target access network simultaneously, keeps the IP address resource of UE; And after PDN GW received above-mentioned message, contact PCRF obtained the PCC rule of UE in the access network of source, recovers the resource between PDN GW and the source access network.

Step 1713: source user veil unit returns and upgrades path response message to the source mobile management network element;

Step 1714: if the source mobile management network element is received the Handover Cancel message that target mobility management network element sends in step 1710 in the step, then the source mobile management network element returns Handover Cancel Acknowledge message to target mobility management network element.

Corresponding with said method, the embodiment of the invention also provides a kind of mobile management network element that network switches of cancelling, this mobile management network element comprises that handover cancelling knows that unit and deleting load-bearing inform the unit, wherein, handover cancelling knows that the unit is mainly used in from source access network element or UE reception handover cancelling notification message, deleting load-bearing informs that the unit is mainly used in after described handover cancelling message knows that the unit receives described handover cancelling message, the resource that the deletion of notification target user veil unit distributes for UE.Preferentially, this mobile management network element comprises that also indicating bit informs the unit, is used to inform described targeted customer's veil described notice of unit because handover cancelling or optimize handover cancelling or pre-registration is cancelled and being caused.Preferably, this mobile management network element also comprises user's face anchor point deletion notification unit, is used for sending to source user veil unit the notice of deletion user face anchor point target network resource.Wherein, described mobile management network element comprises SGSN, MME or HRPD AN, and described user's veil unit comprises Serving GW or PDSN.

In addition, the embodiment of the invention also provides a kind of user's veil unit that network switches that cancels, this user's veil unit comprises that deleting load-bearing knows unit and deleting load-bearing performance element, wherein, deleting load-bearing knows that the unit is mainly used in from target mobility management network element reception resource release command (as the deleting bearing request, message such as A11 register requirement); The deleting load-bearing performance element mainly after described deleting load-bearing knows that the unit receives described resource release command, is used to delete the target network resource of distributing into UE.Preferably, above-mentioned targeted customer's veil unit comprises that also deleting load-bearing informs the unit, and this deleting load-bearing informs that the unit is mainly used in the resource that notice PDN GW deletion distributes in target access network for UE.Preferentially, above-mentioned user's veil unit comprises that also indicating bit informs the unit, is used to inform that the described notice of described user's face anchor point network element is owing to handover cancelling or optimize handover cancelling or the pre-registration cancellation causes.Preferably, this user's veil unit comprises that also user's face anchor point deletion knows the unit, is used for receiving from the source target mobility management network element notice of deletion user face anchor point target network resource.Wherein, described mobile management network element comprises SGSN, MME or HRPD AN, and described user's veil unit comprises Serving GW or PDSN.

In addition, the embodiment of the invention also provides a kind of UE that network switches that cancels, and this UE comprises that handover cancelling judging unit and handover cancelling inform the unit, and wherein, the handover cancelling judging unit is mainly used in and judges whether to carry out handover cancelling; Handover cancelling informs that the unit mainly when described handover cancelling judging unit determines to carry out handover cancelling, is used for sending the handover cancelling notification message to target mobility management network element.Preferably, above-mentioned UE comprises that also indicating bit informs the unit, is used to inform that the described handover cancelling notification message of described target mobility management network element is owing to handover cancelling or optimize handover cancelling or the pre-registration cancellation causes.

In addition, the embodiment of the invention also provides a kind of user's face anchor point network element, and this user's face anchor point network element comprises that deleting load-bearing knows the unit, is used for receiving deleting bearing request or agent binding update messages from user's veil unit; The deleting load-bearing performance element after described deleting load-bearing knows that the unit receives described deleting bearing request or agent binding update messages, is used to delete the target network resource into user equipment allocation.Preferably, this user's face anchor point network element comprises that also indicating bit is known the unit, is used to know that described deleting bearing request or agent binding update messages are owing to handover cancelling, optimization handover cancelling or pre-registration cancellation cause.

And, the embodiment of the invention also provides a kind of system that network switches that cancels, this system comprises UE, source access network element, target mobility management network element and targeted customer's veil unit at least, wherein, described UE or source access network element, judge whether to carry out handover cancelling, if send handover cancelling message to target mobility management network element; Described target mobility management network element after receiving described handover cancelling message, is used for the resource that the deletion of notification target user veil unit distributes for UE; Described targeted customer's veil unit is used to delete the target network resource of distributing into described UE.Preferably, this system also comprises PDN GW; Described PDN GW is used to receive first deleting bearing request or the agent binding update that sends of described targeted customer's veil, and is used for deleting the target network resource of distributing for described UE according to described deleting bearing request or agent binding update; Perhaps, described PDN GW is used for the reception sources user veil unit agent binding update messages that indication sends according to described source access network element, and is used for according to the target network resource of described agent binding update messages deletion for described UE distribution.Further, described PDN GW judges whether the user plane path of described UE is switched to objective network, if described PDN GW is further used for user plane path is switched back to source network from objective network.When described source network was the 3GPP network, described source access network element comprised BSS, RNC or eNodeB, and source user veil unit comprises Serving GW; When described source network was non-3GPP network, described source access network element comprised HRPD AN, and described source user veil unit comprises PDSN; When described objective network was the 3GPP network, described target mobility management network element comprised SGSN or MME, and described targeted customer's veil unit comprises Serving GW; When described objective network was non-3GPP network, described target mobility management network element comprised HRPD AN, and described targeted customer's veil unit comprises PDSN.

The specific implementation details of target mobility management network element, targeted customer's veil unit, UE and the system that provides for the embodiment of the invention can not repeat them here referring to said method embodiment.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. a cancellation network switching processing method is characterized in that, comprising:

The switching of source access network element decision cancellation user equipment (UE) sends handover cancelling message to the source mobile management network element;

Described source mobile management network element sends handover cancelling message to target mobility management network element;

After receiving described handover cancelling message, described target mobility management network element notification target access network element discharges resource and described target mobility management network element transmission deleting bearing request message is notified the first deletion of described targeted customer's veil resource to targeted customer's veil unit, described target mobility management network element increases indicating bit information in described deleting bearing request message, notify the described deleting bearing request message of described targeted customer's veil unit owing to handover cancelling causes;

The target network resource into described user equipment allocation is deleted by described targeted customer's veil unit after receiving described deleting bearing request message;

2. according to the described method of claim 1, it is characterized in that, also comprise:

Source mobile management network element notification source user veil unit upgrades the user plane path of user's face anchor point network element;

After receiving described notice, described source user veil unit sends agent binding update messages or upgrades bearing request message to described user's face anchor point;

After receiving described agent binding update messages or upgrading bearing request message, described user's face anchor point network element deletion is the target network resource of described user equipment allocation.

3. according to the described method of claim 2, it is characterized in that, also comprise:

Judge whether user plane path to be switched to objective network, if described user's face anchor point network element switches back to source network with user plane path from objective network.

4. according to the described method of claim 2, it is characterized in that, described source mobile management network element increases indicating bit information in described notification message, notify the described notification message of described source user veil unit owing to handover cancelling, optimization handover cancelling or pre-registration cancellation cause.

5. according to the described method of claim 2, it is characterized in that, described source user veil unit increase indicating bit information in described agent binding update messages or renewal bearing request message is notified the described described agent binding update messages of user's face anchor point network element or is upgraded bearing request message owing to handover cancelling, optimization handover cancelling or pre-registration cancellation cause.

6. according to each described method in the claim 1 to 5, it is characterized in that,

Source network is 3GPP network or non-3GPP network, and objective network is 3GPP network or non-3GPP network.

7. cancel the system that network switches for one kind, comprise target mobility management network element and targeted customer's veil unit, it is characterized in that,

Described target mobility management network element, after the handover cancelling message that receives source access network element initiation, be used for notification target access network element release resource and send the deleting bearing request message being the resource of user equipment allocation to first deletion of the notification target user of targeted customer's veil unit veil; And in described deleting bearing request message, increase indicating bit information, notify the described deleting bearing request message of described targeted customer's veil unit owing to handover cancelling causes;

Described targeted customer's veil unit after receiving described deleting bearing request message, is used to delete the target network resource into described user equipment allocation; And if find that described deleting bearing request message is because handover cancelling causes, then do not notify user's face anchor point network element to discharge resource, wherein, described targeted customer's veil unit comprises Serving GW.