CN103796280A

CN103796280A - Method, device and system for discovering and selecting hotspot 2.0 access network

Info

Publication number: CN103796280A
Application number: CN201210424243.9A
Authority: CN
Inventors: 陈淑; 霍玉臻; 朱春晖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2014-05-14
Also published as: WO2014067429A1

Abstract

The invention discloses a method, device and system for discovering and selecting a hotspot 2.0 access network. The method comprises: UE sends an access network request message to an ANDSF, the access network request message including access network characteristic information of location information of the UE, hotspot 2.0 capacity and expectation; and the ADNSF returns an access network response message to the UE, the access network response message including an intersystem mobility strategy or an intersystem routing strategy, and access network discovery information, and the intersystem mobility strategy or the intersystem routing strategy and the access network discovery information including the access network characteristic information. By adopting the method, device and system for discovering and selecting the hotspot 2.0 access network, the UE can obtain related characteristic information of the hotspot 2.0 access network, and select and access the hotspot 2.0 access network according to the related characteristic information.

Description

A kind of methods, devices and systems of finding and selecting focus 2.0 Access Networks

Technical field

The present invention relates to mobile communication technology field, relate in particular to a kind of methods, devices and systems of finding and selecting focus 2.0 Access Networks.

Background technology

In order to keep the competitiveness of 3-G (Generation Three mobile communication system) in the communications field, for user provides, speed is faster, the lower and more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) standard operation group is just being devoted to the research of evolved packet system (Evolved Packet System, be called for short EPS).Whole EPS system is divided into wireless access network and core net two parts.Wireless access network is divided into 3GPP Access Network and non-3 GPP access network.

Wireless access network, by evolution base station (Evolved NodeB, referred to as eNB) and 3G radio network controller (Radio Network Controller, referred to as RNC) composition, it is the transmitting-receiving of responsible wireless signal mainly, by air interface and terminal contact, Radio Resource, scheduling of resource and the access control of management air interface.

In core net, mainly comprise home subscriber server (Home Subscriber Server, referred to as HSS), Mobility Management Entity (Mobility Management Entity, referred to as MME), Serving GPRS Support Node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW) and packet data gateway (PDN Gateway, referred to as P-GW).

Fig. 1 a is the structural representation of the packet-based core networks (EvolvedPacket Core, referred to as EPC) of 3GPP and non-3GPP connecting system access evolution.

As shown in Figure 1a, EPS system is supported 3GPP access.HSS is the permanent storage place of user contracting data, is positioned at the signing home network of user.MME is responsible for the chain of command correlation function such as the processing of mobile management, Non-Access Stratum signaling and the management of user mobility managing context.S-GW is the accessing gateway equipment being connected with 3GPP Access Network, forwarding data between 3GPP access and P-GW, and data are carried out to buffer memory.P-GW is the borde gateway of EPS and packet data network (Packet Data Network, referred to as PDN), is responsible for the access of PDN and the function such as forwarding data between EPS and PDN.PCRF is "Policy and Charging Rules Function entity, it is connected with Operator Specific Service network by receiving interface Rx, be responsible for providing charging control, online credit control, thresholding control and service quality (Qualityof Service, referred to as QoS).SGSN is the service support node of GEARN and UTRAN user access core network network, similar with Mobility Management Entity in function, the functions such as responsible user's position renewal, paging management and bearer management.

As shown in Figure 1a, EPS system is also supported non-3GPP access.Wherein, by S2a/S2b/S2c Interface realization, P-GW is as the anchor point between 3GPP and non-3GPP access with the intercommunication of non-3GPP access.Non-3GPP access is divided into the non-3GPP access of credit and the non-3GPP access of non-credit.Wherein, the non-3GPP access of credit can directly be connected with P-GW by S2a interface, and S2a interface adopts proxy-mobile IP (Proxy Mobile IP, referred to as PMIP) agreement to carry out information interaction.The non-3GPP access of non-credit 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.S2c interface provides subscriber equipment (UserEquipment, referred to as UE) and P-GW between the control of user's face and mobility support, the mobility protocol of its support is the mobile IP v 6 (Mobile IPv6support for Dual StackHosts and Routers, referred to as DSMIPv6) of supporting two stacks.

At present, along with the fast development of intelligent terminal and mobile Internet application, Mobile data flow increases sharply with speed difficult to the appraisal.In order effectively to alleviate flow pressure, the lasting development that promotes mobile communication business, WLAN (wireless local area network) (Wireless Local AreaNetwork selects to greatly develop in the increasing operator in the whole world, referred to as WLAN), and to adopt the WLAN of low cost, high bandwidth be Cellular Networks shunting.

Access network discovery and selection functional entity (Access Network Discovery and SelectionFunction, referred to as ANDSF) as access anchor point, can realize Intelligent network-selecting, mutual by network and terminal, realize effective shunting of network insertion, the operator that meets following multi-network cooperative to.ANDSF generates strategy, and helps terminal use to select the network formats of best access, realizes the collaborative of plurality of access modes.

In prior art, ANDSF proposes at R8.In the time that UE will select network to register, if there is 3GPP Access Network and non-3 GPP access network simultaneously, EPS can be current according to UE positional information, provide available access network discovery information by ANDSF to UE, or (the Inter-System Mobility Policy of mobility strategy between system, referred to as ISMP), the information that UE uses ANDSF to provide, selects suitable Access Network to register.If there are multiple non-3 GPP access networks simultaneously, EPS can be current according to UE positional information, provide (the Inter-System Routing Policy of routing policy between system by ANDSF to UE, referred to as ISRP), the information that UE uses ANDSF to provide, selects suitable Access Network to shunt.As shown in Figure 1 b, ANDSF is connected with UE by S14 interface, and this interface adopts open mobile alliance device management (Open Mobile Alliance DeviceManagement, referred to as OMA DM) agreement.

In prior art, ANDSF can solve 3GPP and be switched to the access network selection problem of non-3GPP.Also can solve the shunting routing problem of multi-access terminal, such as: UE (the IP Flow Mobility capable UE that possesses and activate IP stream migration ability, referred to as IFOM capable UE), possesses and activates UE (the Multiple Access PDN Connectivity capable UE of multiple access PDN concatenation ability, referred to as MAPCON capable UE), possesses and activates UE (the Non-seamless WLAN offload capable UE of seamed WLAN shunting ability, referred to as NSWO capable UE) shunting routing problem.

WLAN technology is also in sustainable development, focus 2.0 (Hotspot 2.0, referred to as HS 2.0) be also referred to as focus of future generation (Next Generation Hotspot, referred to as NGH), by Advertisement Server (Advertisement Server) by AP (Access Point, access point) push and the external network information of its intercommunication to UE, for WLAN user provides the ability of seamless roam, seamless authentication, WLAN user possessed approach Cellular Networks user's experience and impression.

Advertisement Server in ANDSF and focus 2.0 technology can merge, in the mode of built-in or external interface, for UE provides the characteristic information of some focus 2.0 Access Networks.Similarly, the characteristic information that ANDSF also can static configuration focus 2.0 Access Networks.The characteristic information of described focus 2.0 Access Networks, transmits on the S14 interface shown in Fig. 1 b in the prior art.

But there are the following problems for prior art:

1, ANDSF of the prior art, in the time being UE choose WLAN Access Network, can not indicate whether charging of this WLAN Access Network of UE/free.

Generally, for instance, the focus that the places such as McDonald, Startbuck are disposed is normally free; The normally charging of focus that the place such as the Capital Airport is disposed; And the focus that operator arranges in place is all charging conventionally, there is the freely preferential of on probation or test period but also do not get rid of.But, concerning UE, grasp near whether charging of all available hotspots its present position/freely also impossible, ANDSF management object also fails to indicate whether charging of this WLAN Access Network of UE/free.

2, ANDSF of the prior art, in the time being UE choose WLAN Access Network, can not indicate UE to use this WLAN Access Network whether can be connected to internet.

ANDSF finds to UE and the WLAN Access Network of selection may can only be connected to local area network (LAN), also internet may can be connected to, if UE expects the WLAN Access Network of selecting one can be connected to internet, current ANDSF management object but fails to indicate this WLAN Access Network of UE whether can be connected to internet.

3, ANDSF of the prior art, in the time being UE choose WLAN Access Network, can not provide this WLAN Access Network to be currently connected to the link condition of internet.

If the WLAN Access Network that ANDSF provides to UE can be connected to internet, UE wishes to understand the link condition of this WLAN Access Network as back haul link (backhaul link), such as link be communicated with or interrupt, the information such as Uplink/Downlink speed, so that UE can select, whether access this WLAN Access Network, but existing ANDSF management object can not provide this WLAN Access Network to be currently connected to the link condition of internet.

4, ANDSF of the prior art, in the time being UE choose WLAN Access Network, can not allow UE know the frequency range that this WLAN Access Network uses in advance.

The current frequency range that may use of WLAN Access Network and UE has two kinds of 2.4GHz and 5GHz, and UE uses identical frequency range correctly to set up and to communicate by letter with AP.But under current mechanism, UE cannot predict the frequency range that near the AP its present position uses in advance by ANDSF.

Summary of the invention

The technical problem that the present invention solves is to provide a kind of methods, devices and systems of finding and selecting focus 2.0 Access Networks, make UE can get the relevant information of focus 2.0 Access Networks, and relevant information is selected and access focus 2.0 Access Networks accordingly.

For solving the problems of the technologies described above, the invention provides a kind of method of finding and selecting focus 2.0 Access Networks, subscriber equipment (UE) sends access network request message to access network discovery and selection functional entity (ANDSF), and described access network request message comprises the Access Network characteristic information of positional information, focus 2.0 abilities and the expectation of described UE;

Described ANDSF returns to access network response message to described UE, described access network response message comprises between system routing policy between mobility strategy or system, and access network discovery information, and routing policy between mobility strategy or system between described system, and comprise Access Network characteristic information in described access network discovery information.

Further, when described UE judgement has been initiated non-third generation partner program (3GPP) switching and found ANDSF, send described access network request message to described ANDSF;

The described access network response message that described ANDSF returns to described UE comprises mobility strategy between system, and access network discovery information;

Described UE receives mobility strategy between described system, and the Access Network characteristic information comprising in described access network discovery information, carry out selection and the switching of target access network, and described target access network is identified jointly by described Access Network characteristic information and service set (SSID).

Further, described UE has initiated that stream migration, multi-grouping data network (PDN) connect or multiple access connects, and while having found ANDSF, sends described access network request message to described ANDSF;

The described access network response message that described ANDSF returns to described UE comprises routing policy between system, and access network discovery information;

Described UE receives routing policy between described system, and the Access Network characteristic information comprising in described access network discovery information, flow Route Selection, and the target access network of this stream is identified jointly by described Access Network characteristic information and SSID.

Further, the Access Network characteristic information that described UE expects, comprises the one or any multiple combination in following information:

Access Network charging identifier, indicates Access Network freely or charging;

Access Network enters the Internet and identifies, and indicates Access Network and can access or can not enter the Internet;

Access Network WLAN link condition, indicates Access Network and is currently connected to the corresponding Link State of wide area network (WAN) link, uplink speed, downlink speed, uplink load;

Access Network frequency range mark, the frequency range that indicates Access Network is 2.4 gigahertz (GHZ)s (GHz) or is 5GHz.

Further, described ANDSF safeguards Access Network characteristic information, and based on described Access Network characteristic information and access technology, access mark between the system of described ANDSF between mobility strategy or system the Access Network priority in routing policy sort;

In the time that described ANDSF receives described access network request message, by routing policy between mobility strategy or system between described system, and described access network discovery information exchange is crossed described access network response message and is sent to described UE.

Further, when described ANDSF receives the described access network request message that comprises described positional information, near available focus 2.0 Access Networks searching;

Described ANDSF obtains the corresponding Access Network characteristic information of described each access point by Advertisement Server to each access point (AP) of described available focus 2.0 Access Networks, and corresponding described each access point Access Network characteristic information is sent to described UE by described access network response message.

Further, described ANDSF obtains the corresponding Access Network characteristic information of described each access point by Advertisement Server to each AP of described available focus 2.0 Access Networks, specifically comprises:

Described ANDSF sends focus 2.0 Access Network request messages to Advertisement Server, and described focus 2.0 Access Network request messages comprise the corresponding basic service set identifier of each AP (BSSID) and/or homogeneity ESSID (HESSID) and/or the SSID of described available focus 2.0 Access Networks;

Described Advertisement Server sends focus 2.0 Access Network request messages to described each AP, and the corresponding Access Network characteristic information of each access point comprising in the focus 2.0 Access Network response messages that the each AP receiving is returned, send to described ANDSF by focus 2.0 Access Network response messages.

The present invention also provides a kind of device of finding and selecting focus 2.0 Access Networks, is applied to access network discovery and selects entity (ANDSF), and described device comprises that Access Network characteristic information administration module and Access Network characteristic information transmit module,

Described Access Network characteristic information administration module, for safeguarding Access Network characteristic information;

Described Access Network characteristic information transmits module, while being used for the access network request message of Access Network characteristic information of the positional information that comprises described UE, focus 2.0 abilities and the expectation that receive UE transmission, return to access network response message to described UE, described access network response message comprises between system routing policy between mobility strategy or system, and access network discovery information, and routing policy between mobility strategy or system between described system, and in described access network discovery information, comprise described Access Network characteristic information.

Further, described Access Network characteristic information administration module is used for, and safeguards the one or any multiple combination in the following characteristic information of Access Network:

Access Network WLAN link condition, indicates Access Network and is currently connected to the corresponding Link State of wide-area network link, uplink speed, downlink speed, uplink load;

Access Network frequency range mark, the frequency range that indicates Access Network is 2.4GHz or is 5GHz.

Further, described Access Network characteristic information transmits module and is used for, based on access technology, access mark, and the Access Network characteristic information safeguarded of described Access Network characteristic information administration module between system between mobility strategy or system the Access Network priority in routing policy sort; And while receiving described access network request message, by routing policy between mobility strategy or system between the described system that comprises described Access Network characteristic information, and described access network discovery information exchange is crossed described access network response message and is sent to described UE.

Further, described Access Network characteristic information transmits module and is used for, while receiving the described access network request message that comprises described positional information, and near available focus 2.0 Access Networks searching; And obtain the corresponding Access Network characteristic information of described each access point by Advertisement Server to each AP of described available focus 2.0 Access Networks, corresponding described each access point Access Network characteristic information is sent to described UE by described access network response message.

Further, described Access Network characteristic information transmits module, for obtaining in such a way the corresponding Access Network characteristic information of described each access point:

Described Access Network characteristic information transmits module and sends focus 2.0 Access Network request messages to Advertisement Server, and described focus 2.0 Access Network request messages comprise the corresponding BSSID of each AP and/or HESSID and/or the SSID of described available focus 2.0 Access Networks;

Described Access Network characteristic information transmits module and receives the focus 2.0 Access Network response messages that described Advertisement Server sends, and gets the corresponding Access Network characteristic information of each access point comprising in described focus 2.0 Access Network response messages.

In addition, the present invention also provides a kind of device of finding and selecting focus 2.0 Access Networks, is applied to Advertisement Server, and described device comprises:

Access Network characteristic information inquiry request module, while being used for receiving the corresponding BSSID of each AP that comprises available focus 2.0 Access Networks of ANDSF transmission and/or the focus 2.0 Access Network request message of HESSID and/or SSID, obtain the corresponding Access Network characteristic information of described each AP to each AP of described available focus 2.0 Access Networks, and corresponding described each AP Access Network characteristic information is sent to described ANDSF by access network response message.

Further, described Access Network characteristic information inquiry request module is used for, and obtains the one or any multiple combination in the following characteristic information of Access Network to described AP:

In addition, the present invention also provides a kind of device of finding and selecting focus 2.0 Access Networks, is applied to access point, and described device comprises:

Access Network characteristic information inquiry response module, while being used for receiving the BSSID that comprises AP, the HESSID of Advertisement Server transmission and/or the focus 2.0 Access Network request message of SSID, corresponding described AP Access Network characteristic information is returned to described Advertisement Server by access network response message.

Further, described Access Network characteristic information inquiry response module is used for, while receiving the described focus 2.0 Access Network request message of Advertisement Server transmission, the one or any multiple combination in following Access Network characteristic information is returned to described Advertisement Server:

In addition, the present invention also provides a kind of device of finding and selecting focus 2.0 Access Networks, is applied to subscriber equipment (UE), and described device comprises:

Access network discovery module, for sending access network request message, the Access Network characteristic information of the positional information that comprises this subscriber equipment (UE) in described access network request message, focus 2.0 abilities and expectation to ANDSF;

Access network selection module, for receiving the access network response message that described ANDSF returns, and according to routing policy between mobility strategy or system between the system in described access network response message, and the Access Network characteristic information comprising in access network discovery information, carry out selection and the switching of target access network or flow Route Selection.

Further, described access network discovery module is used for, and judges when described UE has initiated non-3GPP switching and found ANDSF, sends described access network request message to described ANDSF;

Described access network selection module is used for, while receiving the described access network response message that described ANDSF returns, mobility strategy between the system comprising according to described access network response message, and the Access Network characteristic information that contains of access network discovery packets of information, carry out selection and the switching of target access network, and described target access network is identified jointly by described Access Network characteristic information and SSID.

Further, described access network discovery module is used for, and judges that described UE has initiated that stream migration, many PDN connect or multiple access connects, and while having found ANDSF, while obtaining between system routing policy to described ANDSF, send described access network request message to described ANDSF;

Described access network selection module is used for, while receiving the described access network response message that described ANDSF returns, routing policy between the system comprising according to described access network response message, and the Access Network characteristic information that contains of access network discovery packets of information, flow Route Selection, and the target access network of this stream is identified jointly by described Access Network characteristic information and SSID.

Further, the Access Network characteristic information that described access network discovery module sends to ANDSF the expectation comprising in described access network request message, comprises the one or any multiple combination in following information:

In addition, the present invention also provides a kind of system of finding and selecting focus 2.0 Access Networks, comprise the device that is applied to ANDSF described in any one as above, and/or the device that is applied to Advertisement Server described in any one as above, and/or the device that is applied to access point described in any one as above, and/or the device that is applied to subscriber equipment described in any one as above.

In sum, the invention provides a kind of implementation of finding and selecting focus 2.0 Access Networks, compared with prior art, the present invention at least has following beneficial effect:

1), in the time being UE choose WLAN Access Network, ANDSF can indicate whether charging of this WLAN Access Network of UE/free;

2) if UE expects the WLAN Access Network of selecting one can be connected to internet, current ANDSF management object can indicate this WLAN Access Network of UE whether can be connected to internet;

3) ANDSF can be currently connected to the link condition of internet for UE provides WLAN Access Network, make UE can understand the link condition of this WLAN Access Network as back haul link (backhaul link), such as link be communicated with or interrupt, the information such as Uplink/Downlink speed, so that UE can select whether to access this WLAN Access Network;

4) UE can predict the frequency range that near the AP its present position uses in advance by ANDSF.

Accompanying drawing explanation

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

Fig. 1 a is the structural representation of 3GPP connecting system and non-3GPP connecting system access EPS in prior art;

Fig. 1 b is the interface schematic diagram of UE and ANDSF in prior art;

Fig. 2 is discovery provided by the invention and the method flow schematic diagram of selecting focus 2.0 Access Networks;

Fig. 3 is the flow chart that in the embodiment of the present invention, UE considers charging identifier in the time that ANDSF obtains mobility strategy between system, access network discovery information;

Fig. 4 is the flow chart that in the embodiment of the present invention, UE considers charging identifier in the time that ANDSF obtains routing policy between system;

Fig. 5 is that in the embodiment of the present invention, ANDSF is obtained the charging identifier of focus 2.0 Access Networks and passes to the schematic diagram of UE to access point by Advertisement Server;

Fig. 6 is the flow chart of considering access mark when UE obtains mobility strategy between system, access network discovery information to ANDSF in the embodiment of the present invention;

Fig. 7 is UE consider to enter the Internet in the time that ANDSF obtains routing policy between the system flow chart of mark in the embodiment of the present invention;

Fig. 8 is the schematic diagram that access that in the embodiment of the present invention, ANDSF obtains focus 2.0 Access Networks by from Advertisement Server to access point identified and passed to UE;

Fig. 9 is that in the embodiment of the present invention, ANDSF obtains to access point the schematic diagram that focus 2.0 Access Networks are currently connected to the link condition of internet and pass to UE by Advertisement Server;

Figure 10 is the flow chart that in the embodiment of the present invention, UE considers the frequency range of focus 2.0 Access Networks uses in the time that ANDSF obtains mobility strategy between system, access network discovery information;

Figure 11 is the flow chart that in the embodiment of the present invention, UE considers the frequency range that focus 2.0 Access Networks use in the time that ANDSF obtains routing policy between system;

Figure 12 is that in the embodiment of the present invention, ANDSF is obtained the frequency range that focus 2.0 Access Networks use and passes to the schematic diagram of UE to access point by Advertisement Server;

Figure 13 is the discovery in the embodiment of the present invention and the composition schematic block diagram of selecting the system of focus 2.0 Access Networks.

Embodiment

Present embodiment provides a kind of method of finding and selecting focus 2.0 Access Networks, and as shown in Figure 2, concrete scheme is as follows:

Step 1, UE sends access network request message to ANDSF, and this access network request message comprises the Access Network characteristic information of positional information, focus 2.0 abilities and the expectation of described UE;

Step 2, ANDSF returns to access network response message to UE, this access network response message comprises between system routing policy between mobility strategy or system, and access network discovery information, and routing policy between mobility strategy or system between described system, and comprise Access Network characteristic information in described access network discovery information.

Wherein, described Access Network characteristic information, comprises the one or any multiple combination in following information:

For the ease of setting forth the present invention, below with reference to drawings and the specific embodiments, the enforcement of technical solution of the present invention is described in further detail.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.

Embodiment mono-

The present embodiment has been described UE and in the time that ANDSF obtains mobility strategy between system, access network discovery information, has been considered the whether method of charging of this WLAN.

As shown in Figure 3, the concrete steps of the present embodiment method are described below:

Step 301, the expansion of ANDSF management object positional information, the newly-increased Access Network charging identifier leaf of expecting.

The Access Network charging identifier of this expectation, span can be 0-1, and 0 represents the WLAN Access Network of expecting that access is free, and 1 represents to expect the WLAN Access Network of accounting access.

Step 302, mobility strategy expansion between ANDSF management object system, preferably, under access node, increases charging identifier leaf newly.

This charging identifier, span can be 0-1, and 0 represents that this WLAN Access Network of access is free, and 1 represents this WLAN Access Network charging of access.

Step 303, between the system of ANDSF, mobility strategy carries out the prioritization of Access Network, increases the consideration to charging identifier.

According to access technology, access mark, charging identifier and Access Network priority, combination obtains the preferably sequence of access.For instance, user wishes to access free WLAN Access Network, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, and charging identifier is charging, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, and charging identifier is free, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and charging identifier, the preferred access order that combination obtains is the WLAN Access Network that free WLAN Access Network is preferable over charging.

Further, if, identify according to access technology and access the Access Network priority of obtaining, with combine according to access technology, access mark and charging identifier the Access Network priority of obtaining, between the two, there is conflict, should combine according to access technology, access mark and charging identifier the Access Network priority of obtaining and be as the criterion with more fine-grained so.

Step 304, ANDSF management object access network discovery Information expansion, under the WLAN nodes of locations of Access Network Area Node, newly-increased charging identifier leaf.

Step 305, non-3GPP switching has been initiated in UE judgement.

Step 306, UE sends access network request message to ANDSF, brings the Access Network charging identifier of expectation newly-increased in positional information, focus 2.0 abilities and the present invention of UE.

Step 307, ANDSF sends access network response message to UE, access network response message comprises mobility strategy and access network discovery information between system, wherein in the present invention, support the ability of focus of future generation when the focus 2.0 abilities indications UE of the UE described in step 306 possess, while carrying the Access Network charging identifier of expectation, the newly-increased charging identifier of mobility strategy between system, access network discovery information increases charging identifier newly.

This mode by UE triggering acquisition strategy and access network discovery information is PULL pattern.

Alternatively, ANDSF also can adopt PUSH pattern, initiatively to mobility strategy and access network information between UE transmitting system.

Step 308, UE, according to the access network response message of receiving, carries out target access network selection and switches decision, and this target access network identifies jointly according to the charging identifier of WLAN and SSID, this Access Network characteristic information, except SSID, also comprises WLAN charging identifier.

Step 309, UE carries out non-3 GPP system switching flow.

Embodiment bis-

The present embodiment has been described the UE that supports multi-access technology and has considered in the time that ANDSF obtains routing policy between system the method for charging identifier.

As shown in Figure 4, the concrete steps of the present embodiment method are described below:

Step 401, routing policy expansion between ANDSF management object system, newly-increased charging identifier leaf under routing rule node.

Step 402, between the system of ANDSF, routing policy carries out the prioritization of Access Network, increases the consideration to charging identifier.

According to access technology, access mark, charging identifier and Access Network priority, combination obtains the sequence of routing rule.For instance, user wishes to access free WLAN Access Network, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, and charging identifier is charging, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, and charging identifier is free, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and charging identifier, the routing rule order that combination obtains is the WLAN Access Network that free WLAN Access Network is preferable over charging.

Step 403, UE initiates that stream migration, multiple access PDN connect or the multiple access connection such as seamed WLAN shunting, and has found ANDSF.

Step 404, UE sends access network request message to ANDSF, brings the Access Network charging identifier of positional information, focus 2.0 abilities and the expectation of UE.

Step 405, ANDSF sends access network response message to UE, access network response message comprises routing policy between system, wherein in the present invention, support the ability of focus of future generation when the focus 2.0 abilities indications UE of the UE described in step 404 possess, while carrying the Access Network charging identifier of expectation, the newly-increased charging identifier of routing policy between system.

This mode by UE triggering acquisition strategy is PULL pattern.

Alternatively, ANDSF also can adopt PUSH pattern, initiatively to routing policy between UE transmitting system.

Step 406, UE, according to the access network response message of receiving, flows Route Selection, and the target access network of this stream identifies jointly according to the charging identifier of WLAN and SSID.

Step 407, UE according to the stream of selecting by, carry out other multiple accesses such as stream migration, multiple access PDN connect, seamed WLAN shunting and connect.

Embodiment tri-

The present embodiment has been described ANDSF and has been obtained the charging identifier of Access Network and pass to UE to AP by Advertisement Server, carries out the method for Access Network prioritization.

As shown in Figure 5, the concrete steps of the present embodiment method are described below:

Step 501, UE judges, has initiated non-3GPP and has switched, and found ANDSF; Or UE has initiated stream migration, many PDN connect or other multiple accesses connect, and has found ANDSF.

Step 502, UE sends access network request message to ANDSF, brings the Access Network charging identifier of positional information, focus 2.0 abilities and the expectation of UE.

Step 503, the focus 2.0 abilities indications UE of message described in ANDSF determining step 502 support focuses 2.0, carry the Access Network charging identifier of expectation, and ANDSF searches near available focus 2.0 Access Networks it according to positional information.

Step 504, ANDSF sends focus 2.0 Access Network request messages to Advertisement Server, in message, comprise the corresponding basic service set identifier 1 of each access point (the Basic Service Set Identifier1 of the Access Network of available hotspots 2.0 described in step 503, referred to as BSSID1)～basic service set identifier n (BSSIDn), and/or homogeneity ESSID (Homogeneous Extended Service SetIdentifier1, referred to as HESSID1)～homogeneity ESSID n (HESSIDn), and/or SSID1～SSIDn.Wherein n represents the number of available focus 2.0 Access Networks that ANDSF actual queries arrives.

Step 505, Advertisement Server sends focus 2.0 Access Network request messages to AP1, comprises the BSSID1 of AP1, HESSID1, SSID1 in message.

Step 506, AP1, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises charging identifier 1 in message.

Step 507, Advertisement Server sends focus 2.0 Access Network request messages to APn, comprises the BSSIDn of APn, HESSIDn, SSIDn in message.Wherein n is described in step 504, and Advertisement Server need to all send focus 2.0 Access Network request messages to n AP, to inquire about its corresponding charging identifier.

Step 508, APn, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises charging identifier n in message.

Step 509, timer arrives, or the charging identifier information of neat all available hotspots 2.0 Access Networks of Advertisement Server collection, and, Advertisement Server, to ANDSF loopback focus 2.0 Access Network response messages, comprises charging identifier 1～charging identifier n in message.

Step 510, ANDSF stores the charging identifier information of each focus 2.0 Access Networks.

Step 511, ANDSF sends access network response message to UE.If in step 501, what UE initiated is that non-3GPP switches, and, access network response message comprises mobility strategy between system, and/or access network discovery information; If in step 501, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, access network response message comprises routing policy between system, and/or access network discovery information.In these message, all comprise the corresponding charging identifier of each Access Network.

This mode by UE triggering acquisition strategy and/or access network discovery information is PULL pattern.

Alternatively, ANDSF also can adopt PUSH pattern, initiatively to UE sending strategy and/or access network discovery information.

Step 512, if in step 501, what UE initiated is that non-3GPP switches,, UE, according to the access network response message of receiving, carries out target access network selection and switches determining; If in step 501, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, UE, according to the access network response message of receiving, carries out the Route Selection of this stream.

Step 513, if in step 501, what UE initiated is that non-3GPP switches,, UE carries out non-3 GPP system switching flow, is switched to target access network; If in step 501, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect,, UE according to the stream of selecting by, start stream migration, multiple access PDN connects or other multiple access connection procedures.

Embodiment tetra-

The present embodiment has been described when UE obtains mobility strategy between system, access network discovery information to ANDSF and has been considered whether this WLAN of access can be connected to the method for internet.

As shown in Figure 6, the concrete steps of the present embodiment method are described below:

Step 601, the expansion of ANDSF management object positional information, the newly-increased mark leaf of expecting to enter the Internet.

This expectation is entered the Internet and is identified, and span can be 0-1, and 0 represents not expect to enter the Internet, and 1 represents to expect access.

Step 602, mobility strategy expansion between ANDSF management object system, preferably, under access node, newly-increased access identifies leaf.

This access mark, span can be 0-1, and 0 represents that this WLAN Access Network of access can not enter the Internet, and 1 represents that this WLAN Access Network of access can enter the Internet.

Step 603, between the system of ANDSF, mobility strategy carries out the prioritization of Access Network, increases the consideration to the mark that enters the Internet.

According to access technology, access mark, enter the Internet mark and Access Network priority, combination obtains the preferably sequence of access.For instance, user wishes the WLAN Access Network that access can be entered the Internet, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, enters the Internet and is designated and can not enters the Internet, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, enters the Internet and is designated and can enters the Internet, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and the mark that enters the Internet, the preferred access order that combination obtains is that the WLAN Access Network that can enter the Internet is preferable over the WLAN Access Network that can not enter the Internet.

Further, if, identify according to access technology and access the Access Network priority of obtaining, with the Access Network priority of obtaining according to access technology, access mark and access identifier combination, between the two, there is conflict, should be as the criterion with the more fine-grained Access Network priority of obtaining according to access technology, access mark and access identifier combination so.

Step 604, ANDSF management object access network discovery Information expansion, under the WLAN nodes of locations of Access Network Area Node, the newly-increased mark leaf that enters the Internet.

Step 605, non-3GPP switching has been initiated in UE judgement.

Step 606, UE sends access network request message to ANDSF, brings expectation newly-increased in positional information, focus 2.0 abilities and the present invention of UE to enter the Internet and identifies.

Step 607, ANDSF sends access network response message to UE, access network response message comprises mobility strategy and access network discovery information between system, wherein in the present invention, when the focus 2.0 abilities indications UE of the UE described in step 606 possess support focus of future generation ability, carry while expecting to enter the Internet mark, the newly-increased mark that enters the Internet of mobility strategy between system, the newly-increased mark that enters the Internet of access network discovery information.

Step 608, UE, according to the access network response message of receiving, carries out target access network selection and switches decision, and this target access network identifies jointly according to access mark and the SSID of WLAN.

Step 609, UE carries out non-3 GPP system switching flow.

Embodiment five

The present embodiment has been described the UE that supports multi-access technology and considered whether this WLAN of access can be connected to the method for internet in the time that ANDSF is obtained between system routing policy.

As shown in Figure 7, the concrete steps of the present embodiment method are described below:

Step 701, routing policy expansion between ANDSF management object system, the newly-increased mark leaf that enters the Internet under routing rule node.

Step 702, between the system of ANDSF, routing policy carries out the prioritization of Access Network, increases the consideration to the mark that enters the Internet.

According to access technology, access mark, enter the Internet mark and Access Network priority, combination obtains the sequence of routing rule.For instance, user wishes the WLAN Access Network that access can be entered the Internet, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, enters the Internet and is designated and can not enters the Internet, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, enters the Internet and is designated and can enters the Internet, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and the mark that enters the Internet, the routing rule order that combination obtains is that the WLAN Access Network that can enter the Internet is preferable over the WLAN Access Network that can not enter the Internet.

Step 703, UE initiates that stream migration, multiple access PDN connect or the multiple access connection such as seamed WLAN shunting, and has found ANDSF.

Step 704, UE sends access network request message to ANDSF, brings positional information, focus 2.0 abilities of UE and expects the mark that enters the Internet.

Step 705, ANDSF sends access network response message to UE, access network response message comprises routing policy between system, wherein in the present invention, when the focus 2.0 abilities indications UE of the UE described in step 704 possess while supporting that the ability of focus of future generation, the Access Network that carries expectation enter the Internet mark, the newly-increased mark that enters the Internet of routing policy between system.

This mode by UE triggering acquisition strategy is PULL pattern.

Step 706, UE, according to the access network response message of receiving, flows Route Selection, and the target access network of this stream identifies jointly according to access mark and the SSID of WLAN.

Step 707, UE according to the stream of selecting by, carry out other multiple accesses such as stream migration, multiple access PDN connect, seamed WLAN shunting and connect.

Embodiment six

The present embodiment has been described ANDSF and has been obtained the access mark of WLAN Access Network by Advertisement Server to AP, and carries out the method for Access Network prioritization.

As shown in Figure 8, the concrete steps of the present embodiment method are described below:

Step 801, UE judges, has initiated non-3GPP and has switched, and found ANDSF; Or UE has initiated stream migration, many PDN connect or other multiple accesses connect, and has found ANDSF.

Step 802, UE sends access network request message to ANDSF, brings positional information, focus 2.0 abilities of UE and expects the mark that enters the Internet.

Step 803, the focus 2.0 abilities indications UE of message described in ANDSF determining step 802 support focuses 2.0, carry and expect the mark that enters the Internet, and ANDSF searches near available focus 2.0 Access Networks it according to positional information.

Step 804, ANDSF sends focus 2.0 Access Network request messages to Advertisement Server, in message, comprise the corresponding basic service set identifier 1 of each access point (the Basic Service Set Identifier1 of the Access Network of available hotspots 2.0 described in step 803, referred to as BSSID1)～basic service set identifier n (BSSIDn), and/or homogeneity ESSID (Homogeneous Extended Service SetIdentifier1, referred to as HESSID1)～homogeneity ESSID n (HESSIDn), and/or SSID1～SSIDn.Wherein n represents the number of available focus 2.0 Access Networks that ANDSF actual queries arrives.

Step 805, Advertisement Server sends focus 2.0 Access Network request messages to AP1, comprises the BSSID1 of AP1, HESSID1, SSID1 in message.

Step 806, AP1, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises the mark 1 that enters the Internet in message.

Step 807, Advertisement Server sends focus 2.0 Access Network request messages to APn, comprises the BSSIDn of APn, HESSIDn, SSIDn in message.Wherein n is described in step 804, and Advertisement Server need to all send focus 2.0 Access Network request messages to n AP, to inquire about the access mark of its correspondence.

Step 808, APn, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises the mark n that enters the Internet in message.

Step 809, timer arrives, or the access identification information of neat all available hotspots 2.0 Access Networks of Advertisement Server collection,, Advertisement Server, to ANDSF loopback focus 2.0 Access Network response messages, comprises the mark 1 that the enters the Internet～mark that enters the Internet n in message.

Step 810, ANDSF stores the access identification information of each focus 2.0 Access Networks.

Step 811, ANDSF sends access network response message to UE.If in step 801, what UE initiated is that non-3GPP switches, and, access network response message comprises mobility strategy between system, and/or access network discovery information; If in step 801, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, access network response message comprises routing policy between system, and/or access network discovery information.In these message, all comprise the corresponding access mark of each WLAN Access Network.

Step 812, if in step 801, what UE initiated is that non-3GPP switches,, UE, according to the access network response message of receiving, carries out target access network selection and switches determining; If in step 801, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, UE, according to the access network response message of receiving, carries out the Route Selection of this stream.

Step 813, if in step 801, what UE initiated is that non-3GPP switches,, UE carries out non-3 GPP system switching flow, is switched to target access network; If in step 801, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect,, UE according to the stream of selecting by, start stream migration, multiple access PDN connects or other multiple access connection procedures.

Embodiment seven

The present embodiment has been described ANDSF by Advertisement Server, obtains to AP the method that focus 2.0 Access Networks are currently connected to the link condition of internet/wide area network (Wide Area Network, referred to as WAN) and pass to UE.

As shown in Figure 9, the concrete steps of the present embodiment method are described below:

Step 901, UE judges, has initiated non-3GPP and has switched, and found ANDSF; Or UE has initiated stream migration, many PDN connect or other multiple accesses connect, and has found ANDSF.

Step 902, UE sends access network request message to ANDSF, brings positional information, focus 2.0 abilities and the expectation of UE to obtain the mark of wide-area network link situation.

Step 903, the focus 2.0 abilities indications UE of message described in ANDSF determining step 902 support focuses 2.0, carry the mark of expecting to obtain wide-area network link situation, and ANDSF searches near available focus 2.0 Access Networks it according to positional information.

Step 904, ANDSF sends focus 2.0 Access Network request messages to Advertisement Server, in message, comprise the corresponding basic service set identifier 1 of each access point (the Basic Service Set Identifier1 of the Access Network of available hotspots 2.0 described in step 903, referred to as BSSID1)～basic service set identifier n (BSSIDn), and/or homogeneity ESSID (Homogeneous Extended Service SetIdentifier1, referred to as HESSID1)～homogeneity ESSID n (HESSIDn), and/or SSID1～SSIDn.Wherein n represents the number of available focus 2.0 Access Networks that ANDSF actual queries arrives.

Step 905, Advertisement Server sends focus 2.0 Access Network request messages to AP1, comprises the BSSID1 of AP1, HESSID1, SSID1 in message.

Step 906, AP1, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises Link State 1, uplink speed 1, downlink speed 1, uplink load 1 in message.

Wherein Link State span is 0-1, and 0 represents link down, and 1 represents that link is communicated with;

Wherein uplink speed, downlink speed are measured with kbps;

Wherein uplink load represents that take 255 load is as 100%, proportional linearity metering according to this.In the time that AP does not know the load of up link, its value is 0.

Step 907, Advertisement Server sends focus 2.0 Access Network request messages to APn, comprises the BSSIDn of APn, HESSIDn, SSIDn in message.Wherein n is described in step 904, and Advertisement Server need to all send focus 2.0 Access Network request messages to n AP, to inquire about its corresponding WLAN link condition.

Step 908, APn, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises Link State n, uplink speed n, downlink speed n, uplink load n in message.

Step 909, timer arrives, or Advertisement Server is collected the information of the WLAN link condition of neat all available hotspots 2.0 Access Networks,, Advertisement Server, to ANDSF loopback focus 2.0 Access Network response messages, comprises BSSID1～BSSIDn, Link State 1～Link State n, uplink speed 1～uplink speed n, downlink speed 1～downlink speed n, uplink load 1～uplink load n in message.

Step 910, ANDSF stores the wide-area network link situation information of each focus 2.0 Access Networks based on BSSID, is joined in ISMP, ISRP, the access network discovery information of expansion, and carries out the Access Network prioritization based on BSSID and wide-area network link situation.

Step 911, ANDSF sends access network response message to UE.If in step 901, what UE initiated is that non-3GPP switches, and, access network response message comprises mobility strategy between system, and/or access network discovery information; If in step 901, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, access network response message comprises routing policy between system, and/or access network discovery information.In these message, all comprise the corresponding Link State of BSSID, wide-area network link, uplink speed, downlink speed, the uplink load of each WLAN Access Network.

Step 912, if in step 901, what UE initiated is that non-3GPP switches,, UE, according to the access network response message of receiving, carries out target access network selection and switches determining; If in step 901, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, UE, according to the access network response message of receiving, carries out the Route Selection of this stream.

Step 913, if in step 901, what UE initiated is that non-3GPP switches,, UE carries out non-3 GPP system switching flow, is switched to target access network; If in step 901, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect,, UE according to the stream of selecting by, start stream migration, multiple access PDN connects or other multiple access connection procedures.

Embodiment eight

The present embodiment has been described method from access network discovery information to ANDSF that consider this WLAN frequency range of access when UE obtains mobility strategy between system.

As shown in figure 10, the concrete steps of the present embodiment method are described below:

Step 1001, the expansion of ANDSF management object positional information, newly-increased expectation access frequency range leaf.

This expectation access frequency range, span can be 0-1, and 0 represents to expect that the frequency range of access is 2.4GHz, and 1 represents to expect that the frequency range of access is 5GHz.

Step 1002, mobility strategy expansion between ANDSF management object system, preferably, under access node, newly-increased frequency range identifies leaf.

This frequency range mark, span can be 0-1, and 0 represents that the frequency range of these focus 2.0 Access Networks is 2.4GHz, and 1 represents that the frequency range of these focus 2.0 Access Networks of access is 5GHz.

Step 1003, between the system of ANDSF, mobility strategy carries out the prioritization of Access Network, increases the consideration to frequency range mark.

According to access technology, access mark, frequency range mark and Access Network priority, combination obtains the preferably sequence of access.For instance, user wishes to access focus 2.0 Access Networks that frequency range is 2.4GHz, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, the frequency range of these focus 2.0 Access Networks of frequency range mark indication is 5GHz, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, and the frequency range of these focus 2.0 Access Networks of frequency range mark indication is 2.4GHz, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and frequency range mark, the preferred access order that combination obtains is that frequency range is that the WLAN Access Network of 2.4GHz is preferable over the WLAN Access Network that frequency range is 5GHz.

Further, if, identify according to access technology and access the Access Network priority of obtaining, with the Access Network priority of obtaining according to access technology, access mark and frequency range identifier combination, between the two, there is conflict, should be as the criterion with the more fine-grained Access Network priority of obtaining according to access technology, access mark and frequency range identifier combination so.

Step 1004, ANDSF management object access network discovery Information expansion, under the WLAN nodes of locations of Access Network Area Node, newly-increased frequency range mark leaf.

Step 1005, non-3GPP switching has been initiated in UE judgement.

Step 1006, UE sends access network request message to ANDSF, brings expectation access frequency range mark newly-increased in positional information, focus 2.0 abilities and the present invention of UE.

Step 1007, ANDSF sends access network response message to UE, access network response message comprises mobility strategy and access network discovery information between system, wherein in the present invention, when the focus 2.0 abilities indications UE of the UE described in step 1006 possess support focus of future generation ability, carry while expecting access frequency range mark, the newly-increased frequency range mark of mobility strategy between system, the newly-increased frequency range mark of access network discovery information.

Step 1008, UE, according to the access network response message of receiving, carries out target access network selection and switches decision, and this target access network identifies jointly according to frequency range mark and the SSID of WLAN.

Step 1009, UE carries out non-3 GPP system switching flow.

Embodiment nine

The present embodiment has been described the UE that supports multi-access technology and has considered in the time that ANDSF obtains routing policy between system the method for this WLAN frequency range of access.

As shown in figure 11, the concrete steps of the present embodiment method are described below:

Step 1101, routing policy expansion between ANDSF management object system, newly-increased frequency range mark leaf under routing rule node.

Step 1102, between the system of ANDSF, routing policy carries out the prioritization of Access Network, increases the consideration to frequency range mark.

According to access technology, access mark, frequency range mark and Access Network priority, combination obtains the sequence of routing rule.For instance, user wishes to access focus 2.0 Access Networks that frequency range is 2.4GHz, and the Access Network priority in strategy is: when access technology is WLAN, access is designated SSID1, the frequency range of these focus 2.0 Access Networks of frequency range mark indication is 5GHz, and its corresponding Access Network priority is 2; When access technology is WLAN, access is designated SSID2, and the frequency range of these focus 2.0 Access Networks of frequency range mark indication is 2.4GHz, and its corresponding Access Network priority is 1.In this example, in conjunction with access technology, access mark and frequency range mark, the routing rule order that combination obtains is that frequency range is that the WLAN Access Network of 2.4GHz is preferable over the WLAN Access Network that frequency range is 5GHz.

Step 1103, UE initiates that stream migration, multiple access PDN connect or the multiple access connection such as seamed WLAN shunting, and has found ANDSF.

Step 1104, UE sends access network request message to ANDSF, brings positional information, focus 2.0 abilities of UE and expects access frequency range mark.

Step 1105, ANDSF sends access network response message to UE, access network response message comprises routing policy between system, wherein in the present invention, when the focus 2.0 abilities indications UE of the UE described in step 1104 possess support focus of future generation ability, carry while expecting access frequency range mark the newly-increased frequency range mark of routing policy between system.

This mode by UE triggering acquisition strategy is PULL pattern.

Step 1106, UE, according to the access network response message of receiving, flows Route Selection, and the target access network of this stream identifies jointly according to frequency range mark and the SSID of WLAN.

Step 1107, UE according to the stream of selecting by, carry out other multiple accesses such as stream migration, multiple access PDN connect, seamed WLAN shunting and connect.

Embodiment ten

The present embodiment has been described ANDSF and has been obtained the frequency range mark of WLAN Access Network by Advertisement Server to AP, and carries out the method for Access Network prioritization.

As shown in figure 12, the concrete steps of the present embodiment method are described below:

Step 1201, UE judges, has initiated non-3GPP and has switched, and found ANDSF; Or UE has initiated stream migration, many PDN connect or other multiple accesses connect, and has found ANDSF.

Step 1202, UE sends access network request message to ANDSF, brings positional information, focus 2.0 abilities of UE and expects access frequency range mark.

Step 1203, the focus 2.0 abilities indications UE of message described in ANDSF determining step 1202 support focuses 2.0, carry and expect access frequency range mark, and ANDSF searches near available focus 2.0 Access Networks it according to positional information.

Step 1204, ANDSF sends focus 2.0 Access Network request messages to Advertisement Server, in message, comprise the corresponding basic service set identifier 1 of each access point (the Basic Service Set Identifier1 of the Access Network of available hotspots 2.0 described in step 1203, referred to as BSSID1)～basic service set identifier n (BSSIDn), and/or homogeneity ESSID (Homogeneous Extended ServiceSet Identifier1, referred to as HESSID1)～homogeneity ESSID n (HESSIDn), and/or SSID1～SSIDn.Wherein n represents the number of available focus 2.0 Access Networks that ANDSF actual queries arrives.

Step 1205, Advertisement Server sends focus 2.0 Access Network request messages to AP1, comprises the BSSID1 of AP1, HESSID1, SSID1 in message.

Step 1206, AP1, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises frequency range mark 1 in message.

Step 1207, Advertisement Server sends focus 2.0 Access Network request messages to APn, comprises the BSSIDn of APn, HESSIDn, SSIDn in message.Wherein n is described in step 1204, and Advertisement Server need to all send focus 2.0 Access Network request messages to n AP, to inquire about its corresponding frequency range mark.

Step 1208, APn, to Advertisement Server loopback focus 2.0 Access Network response messages, comprises frequency range mark n in message.

Step 1209, timer arrives, or the frequency range identification information of neat all available hotspots 2.0 Access Networks of Advertisement Server collection, and, Advertisement Server, to ANDSF loopback focus 2.0 Access Network response messages, comprises frequency range mark 1～frequency range mark n in message.

Step 1210, ANDSF stores the frequency range identification information of each focus 2.0 Access Networks.

Step 1211, ANDSF sends access network response message to UE.If in step 1201, what UE initiated is that non-3GPP switches, and, access network response message comprises mobility strategy between system, and/or access network discovery information; If in step 1201, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, access network response message comprises routing policy between system, and/or access network discovery information.In these message, all comprise the corresponding frequency range mark of each WLAN Access Network.

Step 1212, if in step 1201, what UE initiated is that non-3GPP switches,, UE, according to the access network response message of receiving, carries out target access network selection and switches determining; If in step 1201, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect, and, UE, according to the access network response message of receiving, carries out the Route Selection of this stream.

Step 1213, if in step 1201, what UE initiated is that non-3GPP switches,, UE carries out non-3 GPP system switching flow, is switched to target access network; If in step 1201, what UE initiated is that stream migration, many PDN connect or other multiple accesses connect,, UE according to the stream of selecting by, start stream migration, multiple access PDN connects or other multiple access connection procedures.

In addition, also provide a kind of device of finding and selecting focus 2.0 Access Networks in the embodiment of the present invention, be applied to ANDSF, as shown in figure 13, this device mainly comprises that Access Network characteristic information administration module and Access Network characteristic information transmit module, wherein:

In addition, also provide a kind of device of finding and selecting focus 2.0 Access Networks in the embodiment of the present invention, be applied to Advertisement Server, as shown in figure 13, this device mainly comprises:

In addition, a kind of device of finding and selecting focus 2.0 Access Networks is also provided in the embodiment of the present invention, be applied to access point, as shown in figure 13, this device comprises: Access Network characteristic information inquiry response module, while being used for receiving the BSSID that comprises AP, the HESSID of Advertisement Server transmission and/or the focus 2.0 Access Network request message of SSID, corresponding described AP Access Network characteristic information is returned to described Advertisement Server by access network response message.

In addition, also provide a kind of device of finding and selecting focus 2.0 Access Networks in the embodiment of the present invention, be applied to UE, as shown in figure 13, this device mainly comprises:

As shown in figure 13, a kind of system of finding and selecting focus 2.0 Access Networks is also provided in the embodiment of the present invention, and this system comprises the above-mentioned device that is applied to ANDSF, is applied to the device of Advertisement Server, be applied to the device of access point, and the device that is applied to subscriber equipment as above.In addition, in other embodiments of the invention, find and select the system of focus 2.0 Access Networks can comprise above-mentioned discovery and select focus 2.0 Access Networks device at least one or multiple arbitrarily between combination in any.

These are only preferred case study on implementation of the present invention; be not limited to the present invention; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

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 the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.

Claims

1. a method of finding and select focus 2.0 Access Networks, is characterized in that,

Subscriber equipment (UE) sends access network request message to access network discovery and selection functional entity (ANDSF), and described access network request message comprises the Access Network characteristic information of positional information, focus 2.0 abilities and the expectation of described UE;

2. the method for claim 1, is characterized in that,

When described UE judgement has been initiated non-third generation partner program (3GPP) switching and found ANDSF, send described access network request message to described ANDSF;

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

Described UE has initiated that stream migration, multi-grouping data network (PDN) connect or multiple access connects, and while having found ANDSF, sends described access network request message to described ANDSF;

4. the method for claim 1, is characterized in that,

The Access Network characteristic information that described UE expects, comprises the one or any multiple combination in following information:

5. the method as described in claim 1,2,3 or 4, is characterized in that,

Described ANDSF safeguards Access Network characteristic information, and based on described Access Network characteristic information and access technology, access mark between the system of described ANDSF between mobility strategy or system the Access Network priority in routing policy sort;

6. the method as described in claim 1,2,3 or 4, is characterized in that,

When described ANDSF receives the described access network request message that comprises described positional information, near available focus 2.0 Access Networks searching;

7. method as claimed in claim 6, is characterized in that, described ANDSF obtains the corresponding Access Network characteristic information of described each access point by Advertisement Server to each AP of described available focus 2.0 Access Networks, specifically comprises:

8. a device of finding and select focus 2.0 Access Networks, is characterized in that, is applied to access network discovery and selects entity (ANDSF), and described device comprises that Access Network characteristic information administration module and Access Network characteristic information transmit module,

9. device as claimed in claim 8, is characterized in that,

Described Access Network characteristic information administration module is used for, and safeguards the one or any multiple combination in the following characteristic information of Access Network:

10. install as claimed in claim 8 or 9, it is characterized in that,

Described Access Network characteristic information transmits module and is used for, based on access technology, access mark, and the Access Network characteristic information safeguarded of described Access Network characteristic information administration module between system between mobility strategy or system the Access Network priority in routing policy sort; And while receiving described access network request message, by routing policy between mobility strategy or system between the described system that comprises described Access Network characteristic information, and described access network discovery information exchange is crossed described access network response message and is sent to described UE.

11. install as claimed in claim 8 or 9, it is characterized in that,

Described Access Network characteristic information transmits module and is used for, while receiving the described access network request message that comprises described positional information, and near available focus 2.0 Access Networks searching; And obtain the corresponding Access Network characteristic information of described each access point by Advertisement Server to each AP of described available focus 2.0 Access Networks, corresponding described each access point Access Network characteristic information is sent to described UE by described access network response message.

12. devices as claimed in claim 11, is characterized in that,

Described Access Network characteristic information transmits module, for obtaining in such a way the corresponding Access Network characteristic information of described each access point:

13. 1 kinds of devices of finding and selecting focus 2.0 Access Networks, is characterized in that, be applied to Advertisement Server, described device comprises:

14. devices as claimed in claim 13, is characterized in that,

Described Access Network characteristic information inquiry request module is used for, and obtains the one or any multiple combination in the following characteristic information of Access Network to described AP:

15. 1 kinds of devices of finding and selecting focus 2.0 Access Networks, is characterized in that, be applied to access point, described device comprises:

16. devices as claimed in claim 15, is characterized in that,

Described Access Network characteristic information inquiry response module is used for, and while receiving the described focus 2.0 Access Network request message of Advertisement Server transmission, the one or any multiple combination in following Access Network characteristic information is returned to described Advertisement Server:

17. 1 kinds of devices of finding and selecting focus 2.0 Access Networks, is characterized in that, be applied to subscriber equipment (UE), described device comprises:

18. devices as claimed in claim 17, is characterized in that,

Described access network discovery module is used for, and judges when described UE has initiated non-3GPP switching and found ANDSF, sends described access network request message to described ANDSF;

19. devices as claimed in claim 17, is characterized in that,

Described access network discovery module is used for, and judges that described UE has initiated that stream migration, many PDN connect or multiple access connects, and while having found ANDSF, while obtaining between system routing policy, sends described access network request message to described ANDSF to described ANDSF;

20. devices as described in claim 17,18 or 19, is characterized in that,

The Access Network characteristic information that described access network discovery module sends to ANDSF the expectation comprising in described access network request message, comprises the one or any multiple combination in following information:

21. 1 kinds of systems of finding and selecting focus 2.0 Access Networks, it is characterized in that, comprise the device that is applied to ANDSF as described in claim 8,9,10,11 or 12 any one, and/or the device that is applied to Advertisement Server as described in any one of claim 13 or 14, and/or the device that is applied to access point as described in any one of claim 15 or 16, and/or the device that is applied to subscriber equipment as described in claim 17,18,19 or 20 any one.