CN104427485A

CN104427485A - Flow mobility support capability processing method, flow mobility support capability processing device and PDN GW (packet data network gateway)

Info

Publication number: CN104427485A
Application number: CN201310396241.8A
Authority: CN
Inventors: 严为; 霍玉臻; 周娜; 雷小燕
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-09-03
Filing date: 2013-09-03
Publication date: 2015-03-18
Also published as: WO2014177022A1

Abstract

The invention provides a flow mobility support capability processing method, a flow mobility support capability processing device, a PDN GW (packet data network gateway) and an ANDSF (access network discovery and selection function). The method comprises the following steps that the flow mobility support capability information of terminal UE (user equipment) is obtained through the ANDSF; the flow mobility processing of the UE is executed according to the flow mobility support capability information of the UE. Through the method, the device, the PDN GW and the ANDSF, the problem that the mutual communication of the flow mobility support capability information of the UE cannot be realized under the condition of not modifying a protocol or a network architecture in the related technologies is solved, and the effect of greatly lowering the operation complexity is achieved.

Description

Flow mobility tenability processing method, device, PDN GW

Technical field

The present invention relates to the communications field, specifically, relate to a kind of flow mobility tenability processing method, device, grouped data network gateway (Packet Data Network Gateway, referred to as PDN GW) and access network discovery and selection function (Access Network Discovery and Selection Function, referred to as ANDSF).

Background technology

Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) grouping system (the Evolved Packet System of evolution, referred to as EPS) primarily of packet-based core networks (Evolved PacketCore, referred to as the EPC) composition of Access Network and evolution.Fig. 1 is the schematic diagram that in correlation technique, subscriber equipment accesses EPC by non-3 GPP access network, as shown in Figure 1, grouping system (the Evolved Packet System of evolution, referred to as EPS) Access Network can be evolution universal land radio access web (Evolved Universal Terrestrial Radio Access Network, referred to as E-UTRAN) or etc., EPC comprises: mobile management unit (Mobility Management Entity, referred to as MME), Serving GPRS Support Node ((Serving GPRS(General Packet Radio Service, referred to as GPRS) SupportNode, referred to as SGSN), gateway (Serving Gateway, referred to as S-GW), grouped data network gateway (PacketData Network Gateway, referred to as PDN GW), home subscriber server (Home Subscriber Server, referred to as HSS), 3GPP authentication and authorization charging server (Authentication, Authorization, Accounting, referred to as 3GPPAAA), "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) and other support node.

Wherein, there is the base station (evolved NodeB, referred to as eNB) of evolution E-UTRAN inside, and there is base station (NodeB, referred to as NB) UTRAN inside; MME is responsible for mobile management that subscriber equipment (User Equipment, referred to as UE) accesses from EUTRAN, Non-Access Stratum (Non Access Stratum, referred to as NAS) the chain of command related work such as the process of signaling and the management of user's context; The work such as the mobile management that terminal UE of being responsible for SGSN accesses from E-UTRAN, the process of Non-Access Stratum signaling and the management of user's context; S-GW is the accessing gateway equipment be connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and is responsible for carrying out Slow to pending datas such as pagings and depositing.P-GW is then the borde gateway of 3GPP evolved packet system and packet data network (Packet Data Network, referred to as PDN), be responsible for user terminal to the access of PDN, between EPS and PDN forwarding data etc.Be connected by S5/S8 interface between S-GW and P-GW, Bian general packet radio service tunnel agreement (General Packet Radio Service Tunneling Protocol, referred to as GTP) agreement or proxy-mobile IP version 6(Proxy Mobile IP version6, referred to as PMIPv6) agreement.PCRF is "Policy and Charging Rules Function entity, be connected with the IP operation network that operator provides by Rx interface, obtain business information, and be connected with the gateway device in network by Gx/Gxa/Gxb/Gxc interface, be responsible for the foundation that initiation Internet protocol (InternetProtocol, referred to as IP) carries, ensure service quality (the Quality of Service of business datum, referred to as QoS), and carry out charging control.

In addition, EPS also supports that UE passes through the access of other non-3 GPP system except E-UTRAN, and wherein, the access of non-3 GPP system is by S2a/S2b/S2c Interface realization, and now, P-GW is as the data anchor point of the access of 3GPP system and the access of non-3 GPP system.In the system architecture of EPS, non-3 GPP system is divided into trusted non-3 gpp IP Access Network (Trusted non-3GPP IP Access) and trustless non-3 gpp IP Access Network (Untrusted non-3GPP IP Access).Trusted non-3 gpp IP Access Network can be directly connected with P-GW by S2a interface; Trustless non-3 gpp IP Access Network needs to be connected with P-GW through the packet data gateway (Evolved Packet Data Gateway, referred to as ePDG) of evolution, and the interface between ePDG and P-GW is S2b.S2a/S2b interface all can Bian GTP or PMIPv6 agreement.

Multiple access 3GPP system has been introduced in Release8EPS.In such a system, different access networks is connected in a common core net.But in R8EPS, user can not use multiple access to communicate simultaneously, all business must by identical connecting system route.

At present, along with multiplex roles equipment is more and more general, the application run on the mobile device may be adapted at different connecting systems runs.Based on the strategy of operator, User Priority, the feature of application and access, Business Stream carries out route by different access networks.Such as, Audio and Video flows through 3GPP access; Non-3 GPP access is passed through in data service.

3GPP TR23.861 have studied scene, demand and the solution that multi-interface terminal is connected to 3GPP access and other access simultaneously.Wherein comprise UE to be connected by different accesses simultaneously, access the mechanism that identical PDN connects and flow mobility manages.

The process of IP flow mobility management can be divided into three parts:

First, UE supports flow mobility ability, and namely UE flow to identical PDN connection (with reference to 3GPP TS23.402IFOM capable UE) by the IP that different access network routes is different.Such as 3GPP-WLAN, the support of flow mobility ability provides different business to be distributed on distinct interface, can mating or triggering according to side strategy according to type of service and access technology.In order to realize such flow mobility management, network side needs the connection knowing UE to be the object (non-switching) of multiple access, and UE has required Host Properties to support the ability of shared address/prefix on multiplex roles, to support virtual interface (see 3GPPTR23.861-1707.4.2.3.2).

Moreover, changed by external condition (comprising UE triggering, changes in network condition, priority policy etc.), flow mobility is caused to manage the change of routing rule, need to provide routing rule that is new or amendment to related network elements (as PDN GW, PCRF etc.), provide flow mobility management service with triggering network element;

Finally, the convection current mobile management of related network elements is supported, needs the distinct interface for UE to distribute identical IP address.Trigger according to various condition and realize the migration of stream between UE distinct interface.

Current 3GPP TR23.861, IETF draft-koodli-netext-multiaccess-indicator-03(Multi-acces sIndicator for Mobility), draft-savolainen-netext-intertech-handover-00(Inter-tech nology handover inPMIPv6domain) for Problems existing in above-mentioned correlation technique carried out some describe.

Describe in TR23.861, UE is performing in the process being simultaneously connected to another access, should lead to and comprise multiple access instruction and relevant parameter.In attachment, PDN connection establishment process, access network transmits these multiple access relevant informations to PDN GW.PDN GW should safeguard multiple bindings that PDN connects.UE should send multiple access instruction and relevant parameter.Multiple access instruction is carried in signaling information, PCO IE or attach type IE.

Describe in draft-koodli-netext-multiaccess-indicator-03, MN carries a new attribute AT_MA_IND in EAP-Response/AKA-Challenge message, show that the connection of MN is for the purpose of multiple access, and MN supports that required attribute (logic interfacing) is to support flow mobility.3GPP AAA allows to use flow mobility by the subscription record checking MN in HSS, and informs PDN GW.After PDN GW knows that MN supports flow mobility, access identical IP address/prefix for UE distributes with 3GPP.

Describe in draft-savolainen-netext-intertech-handover-00, MN can by arranging P marker bit in RS message, show its can and be willing to be intended to distinct interface carries out the migration of IP session stream.Also above-mentioned information can be transmitted by a DHCP link information option.

Above-mentioned multiple method depends on the support of two layers or three layer protocol stacks, needs terminal to improve the transformation of corresponding protocol stack and could realize, from realizing angle relatively complexity.

Therefore, in the related when not revising agreement or the network architecture, the intercommunication of UE flow mobility tenability information cannot be realized.

Summary of the invention

The invention provides a kind of flow mobility tenability processing method and device, can not ensure that user can use multiple access to communicate, the problem that the complexity that UE accesses simultaneously is high at least to solve in correlation technique simultaneously.

According to an aspect of the present invention, provide a kind of flow mobility tenability processing method, comprising: the flow mobility tenability information being obtained terminal UE by access network discovery and selection function ANDSF; According to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

Preferably, the flow mobility tenability information obtaining described UE by described ANDSF comprise following one of at least: the flow mobility tenability information obtaining described UE from described ANDSF, wherein, described ANDSF obtains the flow mobility tenability information of described UE from described UE.The flow mobility tenability information of described UE is obtained from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.The flow mobility tenability information of described UE is obtained from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE; Obtain the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.The flow mobility tenability information of described UE is obtained from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.The flow mobility tenability information of described UE is obtained from home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.

According to a further aspect in the invention, provide a kind of flow mobility tenability processing method, comprising: obtain the flow mobility tenability information obtaining described UE from terminal UE; The flow mobility tenability information of described UE obtained is supplied to grouped data network gateway PDN GW, wherein, described PDN GW according to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

Preferably, the flow mobility tenability information obtaining described UE comprises: receive the inquiry request message for inquiring about access network discovery and selection function ANDSF from described UE, wherein, the flow mobility tenability information of described UE is carried in described inquiry request message.

Preferably, one of at least the flow mobility tenability information of the described UE obtained is supplied to grouped data network gateway PDN GW in the following manner: the flow mobility tenability information of the described UE obtained is supplied to grouped data network gateway PDN GW; With charging rule functions PCRF, the flow mobility tenability information of the described UE obtained is supplied to described PCRF by strategy, wherein, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF; By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PCRF by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF; By Access Network, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to Access Network, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network; By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of described UE is supplied to Access Network by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network; By home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described HSS server and/or described aaa server.

According to a further aspect in the invention, additionally provide a kind of flow mobility tenability processing unit, comprising: the first acquisition module, for being obtained the flow mobility tenability information of terminal UE by access network discovery and selection function ANDSF; Executive Module, for the flow mobility process of UE described in the flow mobility tenability information and executing according to described UE.

Preferably, described acquisition module comprise following one of at least: the first acquiring unit, for obtaining the flow mobility tenability information of described UE from described ANDSF, wherein, described ANDSF obtains the flow mobility tenability information of described UE from described UE; Second acquisition unit, for obtaining the flow mobility tenability information of described UE from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE; 3rd acquiring unit, for obtaining the flow mobility tenability information of described UE from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE; 4th acquiring unit, for obtaining the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE; 5th acquiring unit, for obtaining the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE; 6th acquiring unit, for obtaining the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.

In accordance with a further aspect of the present invention, provide a kind of grouped data network gateway, comprise any one device recited above.

According to another aspect of the invention, provide a kind of flow mobility tenability processing unit, comprising: the second acquisition module, for obtaining the flow mobility tenability information obtaining described UE from terminal UE; Module is provided, for the flow mobility tenability information of described UE obtained is supplied to grouped data network gateway PDN GW, wherein, described PDN GW according to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

Preferably, described second acquisition module comprises: receiving element, for receiving the inquiry request message for inquiring about access network discovery and selection function ANDSF from described UE, wherein, the flow mobility tenability information of described UE is carried in described inquiry request message.

Preferably, described in provide module comprise following one of at least: the first providing unit, for the flow mobility tenability information of the described UE obtained is supplied to grouped data network gateway PDN GW, second providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by strategy with charging rule functions PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF, 3rd providing unit, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PCRF by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF, 4th providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to Access Network, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network, 5th providing unit, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of described UE is supplied to Access Network by described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network, 6th providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described HSS server and/or described aaa server.

In accordance with a further aspect of the present invention, provide a kind of access network discovery and selection function ANDSF, comprise any one device recited above.

By the present invention, adopt the flow mobility tenability information being obtained terminal UE by access network discovery and selection function ANDSF; According to described UE flow mobility tenability information and executing described in the flow mobility processing method of UE, solve in the related when not revising agreement or the network architecture, the problem of the intercommunication of UE flow mobility tenability information cannot be realized, and reach the effect of the complexity greatly reducing operation.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is that in correlation technique, subscriber equipment accesses EPC by non-3 GPP access network;

Fig. 2 is the flow chart one of the flow mobility tenability processing method according to the embodiment of the present invention;

Fig. 3 is the flowchart 2 of the flow mobility tenability processing method according to the embodiment of the present invention;

Fig. 4 is the structured flowchart of the flow mobility tenability processing unit one according to the embodiment of the present invention;

Fig. 5 is the structured flowchart of the first acquisition module 42 of flow mobility tenability processing unit one according to the embodiment of the present invention;

Fig. 6 is the structured flowchart of the grouped data network gateway PDN GW according to the embodiment of the present invention;

Fig. 7 is the structured flowchart of the flow mobility tenability processing unit two according to the embodiment of the present invention;

Fig. 7 a is the preferred structure block diagram according to the second acquisition module 72 in the flow mobility tenability processing unit two of the embodiment of the present invention;

Fig. 8 is the structured flowchart providing module 74 of the flow mobility tenability processing unit two according to the embodiment of the present invention;

Fig. 9 is access network discovery according to the embodiment of the present invention and selection function ANDSF structured flowchart;

Figure 10 is the schematic diagram according to the ANDSF of the embodiment of the present invention and the interface of other network element;

Figure 11 is the flow chart one obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention;

Figure 12 is the flowchart 2 obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention;

Figure 13 is the flow chart 3 obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention;

Figure 14 is the flow chart four obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention;

Figure 15 is the flow chart five obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention;

Figure 16 is the flow chart of the UE flow mobility ability information of informing PDN GW according to the UE of the embodiment of the present invention.

Embodiment

Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

Provide a kind of flow mobility tenability processing method and device in the present embodiment, Fig. 2 is the flow chart one of the flow mobility tenability processing method according to the embodiment of the present invention, and as shown in Figure 2, this flow process comprises the steps:

Step S202, obtains the flow mobility tenability information of terminal UE by access network discovery and selection function ANDSF;

Step S204, according to the flow mobility process of the flow mobility tenability information and executing UE of UE;

Pass through above-mentioned steps, the flow mobility tenability information of terminal UE is obtained by access network discovery and selection function ANDSF, also need to modify to agreement or the network architecture relative to the flow mobility tenability information obtaining UE in correlation technique, not only solve in the related when not revising agreement or the network architecture, the problem of the intercommunication of UE flow mobility tenability information cannot be realized, and reach the effect of the complexity greatly reducing operation.

The flow mobility tenability information being obtained terminal UE by access network discovery and selection function ANDSF can adopt various ways, such as, directly can obtain the flow mobility tenability information of UE from this ANDSF, wherein, ANDSF obtains the flow mobility tenability information of UE from UE.UE passes through ANDSF, there is provided the flow mobility tenability of UE to network side, the PDN GW of network side is again according to this information, and whether decision-making provides flow mobility management service for it, so just for the follow-up multiple access operation of UE is got ready, improve system operating efficiency.

Again such as, the flow mobility tenability information of UE can also be obtained indirectly by ANDSF, and indirectly can adopt various ways from this flow mobility tenability information of ANDSF acquisition UE, such as, the flow mobility tenability information of UE is obtained from strategy and charging rule functions PCRF, wherein, this PCRF obtains the flow mobility tenability information of UE from ANDSF, ANDSF obtains the flow mobility tenability information of UE from UE, in addition, the approach that ANDSF obtains the flow mobility tenability information of UE also has multiple, does not describe in detail at this.For another example, the flow mobility tenability information of UE is obtained from strategy and charging rule functions PCRF, wherein, PCRF obtains the flow mobility tenability information of UE from home subscriber server HSS and/or authentication and authorization charging aaa server, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.It should be noted that, except approach as above, can also by ANDSF the flow mobility tenability about UE obtained to be informed to HSS/AAA, HSS/AAA again by the flow mobility tenability information notification of UE that obtains to PCRF.PCRF can know the flow mobility tenability information of UE by number of ways, make PCRF better can obtain the flow mobility tenability information of UE.

For another example, the flow mobility tenability information of UE can be obtained from Access Network by the flow mobility tenability information of ANDSF acquisition UE, wherein, Access Network obtains the flow mobility tenability information of UE from ANDSF, ANDSF obtains the flow mobility tenability information of UE from UE, need to send inquiry request to ANDSF before when Access Network obtains the flow mobility tenability information of UE from ANDSF, and in this inquiry request, carry UE mark, the approach that access network obtains ANDSF address is also diversified, such as, DNS can be passed through, DHCP, the approach such as multicast inquiry.This ensure that the fail safe of network and obtain the rapidity of UE flow mobility tenability information, convenience.

For another example, the flow mobility tenability information of UE can also be obtained from Access Network by the flow mobility tenability information of ANDSF acquisition UE, wherein, Access Network obtains the flow mobility tenability information of UE from home subscriber server HSS and/or authentication and authorization charging aaa server, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.Directly obtain the flow mobility tenability information of UE from ANDSF relative to above-mentioned Access Network, Access Network is first from HSS server and/or aaa server, the flow mobility tenability information of this UE is obtained from ANDSF by HSS server and/or aaa server, a kind of selection that the flow mobility tenability information making to obtain this UE from Access Network is many again, the multipath flow mobility tenability information being retrieved as Access Network acquisition UE provides more choices, and illustrates very large superiority.

Also such as, the flow mobility tenability information being obtained UE by ANDSF can also from the flow mobility tenability information of home subscriber server HSS and/or authentication and authorization charging aaa server acquisition UE, wherein, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.The method also well ensure that the promptness and accuracy that obtain UE flow mobility tenability information, for follow-up work is laid a good groundwork, make grouped data network gateway PDN GW can obtain the flow mobility tenability of UE faster, like this when external condition trigger business stream needs to move on the distinct interface of UE, the service that PDN GW can provide flow mobility to manage for user according to this tenability.

In the present embodiment, additionally provide a kind of flow mobility tenability processing method, Fig. 3 is the flowchart 2 of the flow mobility tenability processing method according to the embodiment of the present invention, and as shown in Figure 3, this flow process comprises the steps:

Step S302, obtains the flow mobility tenability information obtaining UE from terminal UE;

Step S304, is supplied to grouped data network gateway PDN GW by the flow mobility tenability information of the UE of acquisition, and wherein, PDN GW is according to the flow mobility process of the flow mobility tenability information and executing UE of UE.

Pass through above-mentioned steps, the flow mobility tenability information of terminal UE is obtained by access network discovery and selection function ANDSF, by this ANDSF, the flow mobility tenability information of this UE is supplied to PDN GW afterwards, also need to modify to agreement or the network architecture relative to the flow mobility tenability information obtaining UE in correlation technique, not only solve in the related when not revising agreement or the network architecture, the problem of the intercommunication of UE flow mobility tenability information cannot be realized, and reach the effect of the complexity greatly reducing operation.

More preferably, when obtaining the flow mobility tenability information of UE, the simply direct mode obtained from request message can be adopted, such as, the inquiry request message for inquiring about access network discovery and selection function ANDSF from UE can be received, wherein, the flow mobility tenability information of UE is carried in this inquiry request message.

Be supplied to grouped data network gateway PDN GW with the above-mentioned corresponding flow mobility tenability information by the UE of acquisition and also can comprise various ways, such as, can comprise following one of at least:

The flow mobility tenability information of the UE of acquisition is supplied to grouped data network gateway PDN GW; With charging rule functions PCRF, the flow mobility tenability information of the UE of acquisition is supplied to PCRF by strategy, wherein, the flow mobility tenability information of the UE of acquisition is supplied to PCRF, and the flow mobility tenability information of UE is supplied to PDNGW by PCRF; By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the UE of acquisition is supplied to PCRF by PCRF, wherein, the flow mobility tenability information of the UE of acquisition is supplied to HSS and/or aaa server, the flow mobility tenability information of UE is supplied to PCRF by HSS and/or aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by PCRF; By Access Network, the flow mobility tenability information of the UE of acquisition is supplied to PCRF, wherein, the flow mobility tenability information of the UE of acquisition is supplied to Access Network, the flow mobility tenability information of UE is supplied to PDN GW by Access Network; By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the UE of acquisition is supplied to PCRF by Access Network, wherein, the flow mobility tenability information of the UE of acquisition is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of UE is supplied to Access Network by HSS and/or aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by Access Network; By home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of the UE of acquisition is supplied to PCRF, wherein, the flow mobility tenability information of the UE of acquisition is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by HSS server and/or aaa server.

Additionally provide a kind of flow mobility tenability processing unit in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.

Fig. 4 is the structured flowchart of the flow mobility tenability processing unit one according to the embodiment of the present invention, and as shown in Figure 4, this device comprises the first acquisition module 42 and Executive Module 44, is described below to this device.

First acquisition module 42, for obtaining the flow mobility tenability information of terminal UE by access network discovery and selection function ANDSF; Executive Module 44, is connected to above-mentioned first acquisition module 42, for the flow mobility process of the flow mobility tenability information and executing UE according to UE.

Fig. 5 is the structured flowchart of the first acquisition module 42 of flow mobility tenability processing unit one according to the embodiment of the present invention, as shown in Figure 5, this first acquisition module 42 comprise following one of at least: the first acquiring unit 51, second acquisition unit 52, the 3rd acquiring unit 53, the 4th acquiring unit 54, the 5th acquiring unit 55, the 6th acquiring unit 56, be described this first acquisition module 42 below.

First acquiring unit 51, for obtaining the flow mobility tenability information of UE from ANDSF, wherein, this ANDSF obtains the flow mobility tenability information of UE from UE.

Second acquisition unit 52, for obtaining the flow mobility tenability information of UE from strategy and charging rule functions PCRF, wherein, PCRF obtains the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.

3rd acquiring unit 53, for obtaining the flow mobility tenability information of UE from strategy and charging rule functions PCRF, wherein, PCRF obtains the flow mobility tenability information of UE from home subscriber server HSS and/or authentication and authorization charging aaa server, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.

4th acquiring unit 54, for obtaining the flow mobility tenability information of UE from Access Network, wherein, Access Network obtains the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.

5th acquiring unit 55, for obtaining the flow mobility tenability information of UE from Access Network, wherein, Access Network obtains the flow mobility tenability information of UE from home subscriber server HSS and/or authentication and authorization charging aaa server, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.

6th acquiring unit 56, for obtaining the flow mobility tenability information of UE from home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, HSS server and/or aaa server obtain the flow mobility tenability information of UE from ANDSF, and ANDSF obtains the flow mobility tenability information of UE from UE.

Fig. 6 is the structured flowchart of the grouped data network gateway PDN GW according to the embodiment of the present invention, and as shown in Figure 6, this grouped data network gateway PDN GW60 comprises above-mentioned any one flow mobility tenability processing unit 62.

Fig. 7 is the structured flowchart of the flow mobility tenability processing unit two according to the embodiment of the present invention, and as shown in Figure 7, this device comprises the second acquisition module 72 and provides module 74, is described below to this device.

Second acquisition module 72, for obtaining the flow mobility tenability information obtaining UE from terminal UE; Module 74 is provided, be connected to above-mentioned second acquisition module 72, flow mobility tenability information for the UE by acquisition is supplied to grouped data network gateway PDN GW, and wherein, PDN GW is according to the flow mobility process of the flow mobility tenability information and executing UE of UE.

Fig. 7 a is the preferred structure block diagram according to the second acquisition module 72 in the flow mobility tenability processing unit two of the embodiment of the present invention, as shown in Figure 7a, this second acquisition module comprises: receiving unit 7a2, is described below to the preferred structure block diagram of this second acquisition module 72.

Receiving element 7a2, for receiving the inquiry request message for inquiring about access network discovery and selection function ANDSF from UE, wherein, carries the flow mobility tenability information of UE in inquiry request message.

Receiving element, for receiving the inquiry request message for inquiring about access network discovery and selection function ANDSF from UE, wherein, carries the flow mobility tenability information of UE in inquiry request message.

Fig. 8 is the structured flowchart providing module 74 of the flow mobility tenability processing unit two according to the embodiment of the present invention, as shown in Figure 8, this provide module 74 comprise following one of at least: the first providing unit 81, second providing unit 82, the 3rd providing unit 83, the 4th providing unit 84, the 5th providing unit 85, the 6th providing unit 86, provide module 74 to be described to this below.

First providing unit 81, the flow mobility tenability information for the UE by acquisition is supplied to grouped data network gateway PDN GW;

Second providing unit 82, for the flow mobility tenability information of the UE of acquisition being supplied to PCRF by strategy with charging rule functions PCRF, wherein, the flow mobility tenability information of the UE of acquisition is supplied to PCRF, and the flow mobility tenability information of UE is supplied to PDN GW by PCRF;

3rd providing unit 83, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the UE of acquisition is supplied to PCRF by PCRF, wherein, the flow mobility tenability information of the UE of acquisition is supplied to HSS and/or aaa server, the flow mobility tenability information of UE is supplied to PCRF by HSS and/or aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by PCRF;

4th providing unit 84, for the flow mobility tenability information of the UE of acquisition being supplied to PCRF by Access Network, wherein, the flow mobility tenability information of the UE of acquisition is supplied to Access Network, the flow mobility tenability information of UE is supplied to PDN GW by Access Network;

5th providing unit 85, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the UE of acquisition is supplied to PCRF by Access Network, wherein, the flow mobility tenability information of the UE of acquisition is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of UE is supplied to Access Network by HSS and/or aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by Access Network;

6th providing unit 86, for the flow mobility tenability information of the UE of acquisition being supplied to PCRF by home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, the flow mobility tenability information of the UE of acquisition is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of UE is supplied to PDN GW by HSS server and/or aaa server.

Fig. 9 is access network discovery according to the embodiment of the present invention and selection function ANDSF structured flowchart, and as shown in Figure 9, this access network discovery and selection function ANDSF90 comprise above-mentioned any one flow mobility tenability processing unit 92.

For how to ensure in correlation technique that user can use multiple access to communicate simultaneously, reduce the problem of the complexity that UE accesses simultaneously, the present invention proposes a kind of method and system consulting flow mobility ability, UE passes through ANDSF, the flow mobility tenability of UE is provided to network side, PDN GW is according to this information, and whether decision-making provides flow mobility management service for it.Comprise PDN GW respectively and (comprise 3GPP and non-3 GPP access network element from ANDSF, access network element, as S-GW, trusted WLAN IAD (Trusted WLAN Access Gateway, referred to as TWAG), trusted WLAN AAA acts on behalf of (TrustedWLAN AAA Proxy, referred to as TWAP), access controller (Access Controller, referred to as AC) etc.), PCRF, HSS/AAA obtain user and to drift dynamic tenability.The present invention mainly solves between UE and network and consults this problem of flow mobility ability, only under UE and network support the prerequisite that flow mobility manages, could provide flow mobility management service for UE.The present invention proposes a kind of new method to consult the method and system of flow mobility ability, UE does not need the protocol stacks such as expansion EAP/3GPP, and it is lower that such UE implements complexity.In this kind of method, UE is by ANDSF, and provide the flow mobility tenability of UE to network side, network side is according to this information, and whether decision-making provides flow mobility management service for it.

Figure 10 is the schematic diagram according to the ANDSF of the embodiment of the present invention and the interface of other network element, and as shown in Figure 10, the S14 interface in figure describes the Organization Chart of access network discovery and selection.ANDSF comprises data management and controlling functions, provides Network finding and selection.The result that triggering Network Based or UE communicated last time, ANDSF should respond UE request for access network discovery information (pull pattern) and possible initialize data transfer to UE(push pattern).The strategy that ANDSF is supplied to UE comprises: inter-system mobility strategy, routing policy between access network discovery information and system.UE may use the information received from ANDSF, for the selection of network between different access technologies.And the dotted line interface in Figure 10 is ANDSF newly-increased in the embodiment of the present invention and the interface of other network element.

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

In embodiment described below, network reference model as shown in figs. 1 and 10.After supporting the UE of multiple access to access EPC by a kind of access technology, its mutual by with ANDSF, informs the tenability of himself flow mobility of ANDSF.ANDSF informs PDN GW by other correlated process.When possessing external condition and triggering the generation of flow mobility, PDN GW referring again to the tenability of subscriber equipment flow mobility, for subscriber equipment provides the management of flow mobility.

Embodiment one

In this embodiment, PDN GW obtains the flow mobility tenability of UE from PCRF.Figure 11 is the flow chart one obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention, and as shown in figure 11, this flow process comprises the steps:

Step S1102, UE are connected to EPC by 3GPP access.UE is the subscriber equipment supporting multiple access interface, successively can be connected to different access networks by multiple interface.In the embodiment of the present invention, be all first connected to EPC, be described by non-3 GPP access EPC again by 3GPP access for UE.The network insertion order of the different access interface of UE does not affect the summary of the invention of this patent.

Mutual by with ANDSF of step S1104, UE, informs the flow mobility tenability of UE.UE can by Procedure Acquisition ANDSF addresses such as DNS, DHCP, and how UE obtains ANDSF address is not discussed within the scope of the present invention.This process is shown in Figure 16, and Figure 16 is the flow chart of the UE flow mobility ability information of informing ANDSF according to the UE of the embodiment of the present invention, and as shown in figure 16, this flow process comprises the steps:

Step S1602, UE carry its flow mobility tenability and UE mark in ANDSF inquiry request, with reference to 3GPP TS24.312, can expand new management object (Management Object, referred to as ANDSF MO) parameter and realize.

After step S1604, ANDSF receive the inquiry request coming from UE, the UE mark in preservation request and UE support the ability of flow mobility.

The flow mobility tenability about UE obtained is informed that how obtaining PCRF address to PCRF(ANDSF does not discuss within the scope of the present invention by step S1106, ANDSF.ANDSF can obtain this address information by DNS, DHCP or from AAA/HSS).The interface of standard is not had between current ANDSF and PCRF, UE flow mobility tenability and UE identification information can adopt any suitable message to carry, such as expanding policy and charging control (Policy and ChargingControl, referred to as PCC) message, or the private message that the new attribute of an expansion aaa protocol realizes or defines realizes.

Step S1108, PCRF preserve the mobility support ability information of UE mark and UE.

Step S1106 and step S1108 also can by process implementation below: the flow mobility tenability about UE that ANDSF just obtains is informed and to be informed the ability information of acquisition to PCRF to HSS/AAA, HSS/AAA again.

Step S1110 ~ step S1114 and step S1118, step S1122, UE access EPC by non-3 GPP network, the reciprocal process that trigger policy controls and carrying is set up.Access procedure can with reference to standards such as 3GPP TS23.402.

Step S1116, the carrying in access procedure is set up and is triggered PDN GW initiation IP-CAN session modification request to PCRF.

Step S1120, PCRF send IP-CAN session modification response message to PDN GW, carry the mark of UE and the mobility support ability of UE in response message.The mobility support ability of UE can be realized by the coherent element of expansion IP-CAN conversation message.

PDN GW obtains the flow mobility tenability of UE, when external condition triggers (as access network signal quality or some policy reasons, as price, QoS, available bandwidth etc.) Business Stream needs when moving on the distinct interface of UE, the service that PDN GW provides flow mobility to manage according to this tenability for user.

Embodiment two

In this embodiment, PDN GW obtains the flow mobility tenability of UE from ANDSF.Figure 12 is the flowchart 2 obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention, and as shown in figure 12, this flow process comprises the steps:

Step S1202, UE are connected to EPC by 3GPP access.UE is the subscriber equipment supporting multiple access interface, successively can be connected to different access networks by multiple interface.In the embodiment of the present invention, be all first connected to EPC, be described by non-3 GPP access EPC again by 3GPP access for UE.The network insertion order of the different access interface of UE does not affect the summary of the invention of this patent.

Mutual by with ANDSF of step S1204, UE, informs the flow mobility tenability of UE.This process is shown in Figure 16.

Step S1602, UE carry its flow mobility tenability and UE mark in ANDSF inquiry request.Because ANDSF in embodiment for this reason needs the IP address knowing PDN GW, so the IP address of PDN GW also can be carried (if ANDSF can know the PDN GW address of UE by other approach in this request, then can not carry), for the realization of step S1206 below.Above-mentioned information with reference to 3GPP TS24.312, can be expanded new management object (Management Object, referred to as ANDSF MO) parameter and realizes.

After step S1604, ANDSF receive the inquiry request coming from UE, the UE preserved in request identifies, UE supports flow mobility ability and PDN GW address.

The flow mobility tenability about UE obtained is informed that the address how obtaining PDN GW to PDN GW(ANDSF is not discussed within the scope of the present invention by step S1206, ANDSF.Such as UE can obtain the address of PDNGW after access network from network side, and then informs ANDSF.In addition, the address of PDN GW also may be stored on the network elements such as HSS/AAA/PCRF, and ANDSF obtains the PDN GW of UE connection from these network elements).Do not have the interface of standard between current ANDSF and PDN GW, UE flow mobility tenability and UE identification information can adopt any suitable message to carry, and the private message that the new attribute such as expanding an aaa protocol realizes or defines realizes.

Step S1208, PDN GW preserves UE mark and the mobility support force information of UE, and returns and confirm message to ANDSF accordingly.

Step S1210 ~ step S1214 and step S1218, step S1222, UE access EPC by non-3 GPP network, the reciprocal process that trigger policy controls and carrying is set up.Access procedure can with reference to standards such as 3GPP TS23.402.

Step S1216, the carrying in access procedure is set up triggering PDN GW initiation IP-CAN session modification request (having carried UE mark in request) and, to PCRF, is carried the flow mobility tenability of UE in request.Flow mobility tenability can be realized by the coherent element in expansion IP-CAN conversation message.

Step S1220, PCRF preserve the flow mobility tenability of UE mark and UE, and return IP-CAN session modification response message to PDN GW.

Embodiment three

In this embodiment, non-3 GPP access network obtains the flow mobility tenability of UE from ANDSF, and PDN GW obtains this information from non-3 GPP access network again.Figure 13 is the flow chart 3 obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention, and as shown in figure 13, this flow process comprises the steps:

Step S1302, UE are connected to EPC by 3GPP access.UE is the subscriber equipment supporting multiple access interface, successively can be connected to different access networks by multiple interface.In the embodiment of the present invention, be all first connected to EPC, be described by non-3 GPP access EPC again by 3GPP access for UE.The network insertion order of the different access interface of UE does not affect the summary of the invention of this patent.

Mutual by with ANDSF of step S1304, UE, informs the flow mobility tenability of UE.This process is shown in Figure 16.

Step S1602, UE carry its flow mobility tenability and UE mark in ANDSF inquiry request, with reference to 3GPP TS24.312, can expand new ANDSF MO parameter and realize.

Step S1306, UE are by non-3 gpp interface access network.

Step S1308, UE access non-3 GPP access network, and triggering access network network, to the flow mobility tenability of ANDSF inquiry request UE, also carries UE mark in inquiry request.How non-3 GPP access network obtains the address of ANDSF, does not describe in the present invention.The ANDSF address that can be used by approach acquisition UE such as DNS, DHCP, multicast inquiry.

Step S1310, ANDSF respond Query Result to non-3 GPP access network, return the flow mobility tenability of UE.The message of step S1308 and step S1310 can realize with reference to existing ANDSF query messages, and UE mark and flow mobility tenability with reference to 3GPP TS24.312, can be expanded new ANDSF MO parameter and realize.

Step S1312, UE access the gateway control session process of establishing that non-3 GPP access network triggers.Process can with reference to standards such as 3GPPTS23.203.

Step S1314, non-3 GPP access network initiates loading establishing process.

If set up carrying by PMIP, then non-3 gpp IP access is sent to the flow mobility tenability needing to carry UE in the PBU message of PDN GW.The flow mobility tenability of UE can be realized by flag in expansion PBU message or relevant options.Such as expansion " M " marker bit in the reserved field of PBU message or relevant options, if be set to 1, shows that UE supports flow mobility.

If set up GTP tunnel carrying, then non-3 GPP access network carries the mark of UE and the flow mobility support element of UE in the Create Default BearerRequest message being sent to PDN GW.The flow mobility support of UE can by expanding above-mentioned message to realize.

Step S1316, the carrying in access procedure is set up triggering PDN GW initiation IP-CAN session modification request (having carried UE mark in request) and, to PCRF, is carried the flow mobility tenability of UE in request.Flow mobility tenability can be realized by the coherent element in expansion IP-CAN conversation message.

Step S1318, gateway control session and PCC rule provide process, and PCRF provides relevant QoS regular to non-3 GPP access network.

Step S1320, PCRF preserve the flow mobility tenability of UE mark and UE, and return IP-CAN session modification response message to PDN GW.

Step S1322, PDN GW returns carrying and sets up response message to non-3 GPP access network.

Embodiment four

In this embodiment, non-3 GPP access network obtains the flow mobility tenability of UE from HSS/AAA, and PDN GW obtains this information from non-3 GPP access network again.Figure 14 is the flow chart four obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention, and as shown in figure 14, this flow process comprises the steps:

Step S1402, UE are connected to EPC by 3GPP access.UE is the subscriber equipment supporting multiple access interface, successively can be connected to different access networks by multiple interface.In the embodiment of the present invention, be all first connected to EPC, be described by non-3 GPP access EPC again by 3GPP access for UE.The network insertion order of the different access interface of UE does not affect the summary of the invention of this patent.

Mutual by with ANDSF of step S1404, UE, informs the flow mobility tenability of UE.This process is shown in Figure 16.

The flow mobility tenability about UE obtained is informed to HSS/AAA by step S1406, ANDSF.Do not have the interface of standard between current ANDSF and HSS/AAA, UE flow mobility tenability and UE identification information can adopt any suitable message to carry, and the private message that the new attribute such as expanding an aaa protocol realizes or defines realizes.How ANDSF obtains HSS/AAA address, does not discuss within the scope of the present invention.The inquiries such as DNS, DHCP, static configuration can be passed through obtain.

Step S1408, HSS/AAA preserve UE mark and the mobility support force information of UE, and return and confirm message to ANDSF accordingly.

Step S1410, UE find non-3 GPP access network, and prepare to start to access non-3 GPP network.

Step S1412, UE access non-3 GPP access network, and perform authorization identifying process.After being successfully completed this process, HSS/AAA carries subscriber equipment flow mobility tenability to non-3 GPP access network in authentication success message.Such as HSS/AAA is in the AAA message of EAP Success being sent to non-3 GPP access network, and newly-increased property value, for carrying the flow mobility tenability of user.

Step S1414, UE access the gateway control session process of establishing that non-3 GPP access network triggers.Process can with reference to standards such as 3GPPTS23.203.

Step S1416, non-3 GPP access network initiates loading establishing process.

Step S1418, the carrying in access procedure is set up triggering PDN GW initiation IP-CAN session modification request (having carried UE mark in request) and, to PCRF, is carried the flow mobility tenability of UE in request.Flow mobility tenability can be realized by the coherent element in expansion IP-CAN conversation message.

Step S1420, gateway control session and PCC rule provide process, and PCRF provides relevant QoS regular to non-3 GPP access network.

Step S1422, PCRF preserve the flow mobility tenability of UE mark and UE, and return IP-CAN session modification response message to PDN GW.

Step S1424, PDN GW returns carrying and sets up response message to non-3 GPP access network.

Embodiment five

In this embodiment, the flow mobility tenability obtained from UE is informed HSS/AAA by ANDSF, and PDN GW obtains this information from HSS/AAA again.Figure 15 is the flow chart five obtaining UE flow mobility ability information according to the PDN GW of the embodiment of the present invention, and as shown in figure 15, this flow process comprises the steps:

Step S1502, UE are connected to EPC by 3GPP access.UE is the subscriber equipment supporting multiple access interface, successively can be connected to different access networks by multiple interface.In the embodiment of the present invention, be all first connected to EPC, be described by non-3 GPP access EPC again by 3GPP access for UE.The network insertion order of the different access interface of UE does not affect the summary of the invention of this patent.

Mutual by with ANDSF of step S1504, UE, informs the flow mobility tenability of UE.This process is shown in Figure 16.

The flow mobility tenability about UE obtained is informed to HSS/AAA by step S1506, ANDSF.Do not have the interface of standard between current ANDSF and HSS/AAA, UE flow mobility tenability and UE identification information can adopt any suitable message to carry, and the private message that the new attribute such as expanding an aaa protocol realizes or defines realizes.

Step S1508, HSS/AAA preserve UE mark and the mobility support force information of UE, and return and confirm message to ANDSF accordingly.

Step S1510, UE are by non-3 gpp interface access network.

Step S1512, UE access the gateway control session process of establishing that non-3 GPP access network triggers.Process can with reference to standards such as 3GPPTS23.203.

Step S1514, non-3 GPP access network initiates loading establishing process.Such as, PMIP can be adopted set up carrying, also can set up carrying by GTP.

Step S1516, PDN GW initiates to examine to the UE flow mobility ability of HSS/AAA.Whether inquiry UE supports flow mobility.Message implementation in step S1516, step S1518 has multiple, and the private message that the new attribute such as can expanding an aaa protocol realizes or defines realizes.

Step S1518, HSS/AAA return the UE flow mobility tenability that obtains from ANDSF to PDN GW.

Step S1520, the carrying in access procedure is set up triggering PDN GW initiation IP-CAN session modification request (having carried UE mark in request) and, to PCRF, is carried the flow mobility tenability of UE in request.Flow mobility tenability can be realized by the coherent element in expansion IP-CAN conversation message.

Step S1522, gateway control session and PCC rule provide process, and PCRF provides relevant QoS regular to non-3 GPP access network.

Step S1524, PCRF preserve the flow mobility tenability of UE mark and UE, and return IP-CAN session modification response message to PDN GW.

Step S1526, PDN GW returns carrying and sets up response message to non-3 GPP access network.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a flow mobility tenability processing method, is characterized in that, comprising:

The flow mobility tenability information of terminal UE is obtained by access network discovery and selection function ANDSF;

According to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

2. method according to claim 1, is characterized in that, the flow mobility tenability information obtaining described UE by described ANDSF comprise following one of at least:

Obtain the flow mobility tenability information of described UE from described ANDSF, wherein, described ANDSF obtains the flow mobility tenability information of described UE from described UE;

The flow mobility tenability information of described UE is obtained from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

The flow mobility tenability information of described UE is obtained from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

Obtain the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

The flow mobility tenability information of described UE is obtained from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

The flow mobility tenability information of described UE is obtained from home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.

3. a flow mobility tenability processing method, is characterized in that, comprising:

Obtain the flow mobility tenability information obtaining described UE from terminal UE;

The flow mobility tenability information of described UE obtained is supplied to grouped data network gateway PDN GW, wherein, described PDN GW according to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

4. method according to claim 3, is characterized in that, the flow mobility tenability information obtaining described UE comprises:

Receiving the inquiry request message for inquiring about access network discovery and selection function ANDSF from described UE, wherein, in described inquiry request message, carrying the flow mobility tenability information of described UE.

5. the method according to claim 3 or 4, is characterized in that, one of at least the flow mobility tenability information of the described UE obtained is supplied to grouped data network gateway PDN GW in the following manner:

The flow mobility tenability information of the described UE obtained is supplied to grouped data network gateway PDN GW;

With charging rule functions PCRF, the flow mobility tenability information of the described UE obtained is supplied to described PCRF by strategy, wherein, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF;

By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PCRF by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF;

By Access Network, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to Access Network, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network;

By home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of described UE is supplied to Access Network by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network;

By home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described HSS server and/or described aaa server.

6. a flow mobility tenability processing unit, is characterized in that, comprising:

First acquisition module, for obtaining the flow mobility tenability information of terminal UE by access network discovery and selection function ANDSF;

Executive Module, for the flow mobility process of UE described in the flow mobility tenability information and executing according to described UE.

7. device according to claim 6, is characterized in that, described acquisition module comprise following one of at least:

First acquiring unit, for obtaining the flow mobility tenability information of described UE from described ANDSF, wherein, described ANDSF obtains the flow mobility tenability information of described UE from described UE;

Second acquisition unit, for obtaining the flow mobility tenability information of described UE from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

3rd acquiring unit, for obtaining the flow mobility tenability information of described UE from strategy and charging rule functions PCRF, wherein, described PCRF obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

4th acquiring unit, for obtaining the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

5th acquiring unit, for obtaining the flow mobility tenability information of described UE from Access Network, wherein, described Access Network obtains the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE;

6th acquiring unit, for obtaining the flow mobility tenability information of described UE from home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, described HSS server and/or described aaa server obtain the flow mobility tenability information of described UE from described ANDSF, and described ANDSF obtains the flow mobility tenability information of described UE from described UE.

8. a grouped data network gateway PDN GW, is characterized in that, comprises the device according to any one of claim 6 to 7.

9. a flow mobility tenability processing unit, is characterized in that, comprising:

Second acquisition module, for obtaining the flow mobility tenability information obtaining described UE from terminal UE;

Module is provided, for the flow mobility tenability information of described UE obtained is supplied to grouped data network gateway PDN GW, wherein, described PDN GW according to described UE flow mobility tenability information and executing described in the flow mobility process of UE.

10. device according to claim 9, is characterized in that, described second acquisition module comprises:

Receiving element, for receiving the inquiry request message for inquiring about access network discovery and selection function ANDSF from described UE, wherein, carries the flow mobility tenability information of described UE in described inquiry request message.

11. devices according to claim 9 or 10, is characterized in that, described in provide module comprise following one of at least:

First providing unit, for being supplied to grouped data network gateway PDN GW by the flow mobility tenability information of the described UE obtained;

Second providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by strategy with charging rule functions PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described PCRF, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF;

3rd providing unit, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described PCRF, wherein, the flow mobility tenability information of the described UE obtained is supplied to described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PCRF by described HSS and/or described aaa server, and the flow mobility tenability information of described UE is supplied to described PDN GW by described PCRF;

4th providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to Access Network, and the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network;

5th providing unit, for passing through home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of the described UE obtained is supplied to described PCRF by described Access Network, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, the flow mobility tenability information of described UE is supplied to Access Network by described HSS and/or described aaa server, the flow mobility tenability information of described UE is supplied to described PDN GW by described Access Network,

6th providing unit, for the flow mobility tenability information of the described UE obtained being supplied to described PCRF by home subscriber server HSS and/or authentication and authorization charging aaa server, wherein, the flow mobility tenability information of the described UE obtained is supplied to home subscriber server HSS and/or authentication and authorization charging aaa server, and the flow mobility tenability information of described UE is supplied to described PDNGW by described HSS server and/or described aaa server.

12. 1 kinds of access network discoveries and selection function ANDSF, is characterized in that, comprises the device according to any one of claim 9 to 11.