CN102388629B

CN102388629B - Method, system and device for obtaining WLAN configuration information

Info

Publication number: CN102388629B
Application number: CN201180002037.2A
Authority: CN
Inventors: 王珊珊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2014-01-22
Anticipated expiration: 2031-09-26
Also published as: WO2012149769A1; CN102388629A

Abstract

The invention relates to communication technical field, in particular to a method, system and device for obtaining WLAN configuration information. The invention provides a method for obtaining WLAN configuration information. First registration information is sent according to network elements of a mobile network, wherein the first registration information includes WLAN information corresponding to the current position of a user's device, and idendification information of the user's device. An access network discovers the mapping relation between WLAN information corresponding to the current position of a user's device recorded by a selection entity and idendification information of the user's device. Through the method, the access network can obtain the mapping relation in time, and can provide the user's device with the WLAN information of the location where the user's device is situated.

Description

A kind of method, system and device that obtain WLAN configuration information

Technical field

The present invention relates to communication technical field, relate in particular to a kind of method, system and device that obtain WLAN configuration information.

Background technology

Along with the development of the communication technology, various new wireless access wide band technologies continue to bring out.In order to guarantee 3GPP (The 3rd Generation Partnership Project, third generation partner program) in long competitiveness in future, 3GPP has proposed LTE (Long Term Evolution in wireless side, Long Term Evolution) plan, at network side, SAE (System Architecture Evolution, System Architecture Evolution) plan has been proposed.Fig. 1 is current wireless evolution network framework figure.

As shown in Figure 1, MME (Mobility Management Entity, Mobility Management Entity) and SGSN (Serving GPRS Support Node, Serving GPRS Support Node) be mobile management net element, be responsible for the mobile management of chain of command, comprise the management of user's context and mobile status, the distribution of customer temporary identity sign and peace congruous function; It is downlink data initiation paging that SGW (Serving Gateway, gateway) is responsible under idle condition, the information such as the interior route of managing I P bearing parameter and network; PGW (PDNGateway, block domain data network gateway) is responsible for the distribution of UE (User Equipment, subscriber equipment) IP address.

As shown in Figure 1, the wireless access of 2G network is partly GERAN (GSM EDGE Radio AccessNetwork, GSM EDGE Radio Access Network), by BTS (Base Transceiver Station, base transceiver station) and BSC (Base Station Controller, base station controller) form; The wireless access of 3G network is partly UTRAN (Universal Mobile Telecommunication System TerritorialRadio Access Network, universal mobile telecommunications system land radio access web), by RNC (RadioNetwork Controller, radio network controller) and NodeB (Node B), formed; The wireless access of LTE network is partly E-UTRAN (Evolved UTRAN, evolved universal mobile communication system land radio access web), eNodeB, consists of.

Along with the development of mobile technology, mobile network user quantity is increased sharply, and has caused mobile network's overload, has occurred the situations such as network congestion.WLAN (Wireless Local Area Network, WLAN (wireless local area network)), as a kind of access way of mobile broadband cheaply, has become first-selected dividing technology.Wlan network and mobile network's fusion is just becoming a kind of networking pattern generally adopting.Therefore and do not know that current present position has wlan network the multimode UE simultaneously with 3GPP access capability and WLAN access capability, when carrying out 3GPP access, because UE does not open WLAN switch,, thereby can not shunt effectively.

For reducing multimode UE access Wi-Fi (Wireless Fidelity, Wireless Fidelity) find the time delay of selection course during network, SAE network has defined access network discovery selection function (Access Network Discoveryand Selection Function is called for short ANDSF) entity.In the ANDSF mechanism of standard definition, UE provides the positional information of UE to access network discovery selection functional entity, and access network discovery selection functional entity is returned to wireless local area network information corresponding to position therewith.Fig. 2 is while adopting ANDSF mechanism, the schematic flow sheet that UE is used Wi-Fi to access by credible access way, wherein,

Step S201:UE is linked into network, obtains IP address;

Step S202:UE and access network discovery selection functional entity are set up security association;

Step S203-step S204:UE obtains the wireless local area network information corresponding with its current location;

Whether step S205:UE initiates Wi-Fi access or switches according to strategy decision.

By the analysis to prior art, inventor thinks that prior art at least exists following problem:

ANDSF mechanism of the prior art requires the corresponding relation of preset all WLAN and its position to provide applicable wireless local area network information for UE, and in actual deployment, WLAN is dynamic change, likely increase, reduce or substitute, the corresponding relation of WLAN and its position can correspondingly change.For access network discovery selection functional entity, owing to cannot obtaining in time up-to-date WLAN and the corresponding relation of its position, its actual playing a role has just run into bottleneck, often cannot provide to UE the wireless local area network information of its position.Prior art does not provide effective mechanism to solve this problem.

Summary of the invention

The embodiment of the present invention provides a kind of method, system and device that obtain WLAN configuration information, makes access network discovery selection functional entity that the wireless local area network information of its position can be provided to subscriber equipment.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, the method comprises:

Access network discovery selection functional entity receives the first registration message that mobile network's network element sends, and described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment;

Described access network discovery selection functional entity, according to described the first registration message, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

The another kind that the embodiment of the present invention provides obtains the method for WLAN configuration information, and the method comprises:

Mobile network's network element, according to the positional information of subscriber equipment, is determined wireless local area network information corresponding to described subscriber equipment current location;

Described mobile network's network element sends the first registration message to access network discovery selection functional entity, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment, so that described access network discovery selection functional entity records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

A kind of access network discovery selection functional entity that the embodiment of the present invention provides, comprising:

Receiving element, the first registration message sending for receiving mobile network's network element, described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment;

Record cell, the first registration message for receiving according to described receiving element, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

A kind of mobile network's that the embodiment of the present invention provides network element, comprising:

Determining unit, for according to the positional information of subscriber equipment, determines wireless local area network information corresponding to described subscriber equipment current location;

Transmitting element, for determining after wireless local area network information corresponding to described subscriber equipment current location in described determining unit, to access network discovery selection functional entity, send the first registration message, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment, so that described access network discovery selection functional entity records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

A kind of system of obtaining WLAN configuration information that the embodiment of the present invention provides, this system comprises:

Mobile network's network element, be used for according to the positional information of subscriber equipment, to access network discovery selection functional entity, send the first registration message, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment.

Access network discovery selection functional entity, the first registration message for sending according to described mobile network's network element, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, system and device, by wireless local area network information corresponding to mobile network's reported by network elements subscriber equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment, so that access network discovery selection functional entity can provide to subscriber equipment the wireless local area network information of its position.

Accompanying drawing explanation

Fig. 1 is current wireless evolution network framework figure;

Fig. 2 is the schematic flow sheet that while adopting ANDSF mechanism, UE is used Wi-Fi to access by credible access way;

A kind of method of obtaining WLAN configuration information that Fig. 3 provides for the embodiment of the present invention;

The another kind that Fig. 4 provides for the embodiment of the present invention obtains the method for WLAN configuration information;

Fig. 5 is the networking structure figure that the network element of the mobile network in the embodiment of the present invention is PGW;

A kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 5 that Fig. 6 provides for the embodiment of the present invention;

Fig. 7 is the networking structure figure that the network element of the mobile network in the embodiment of the present invention is SGW;

A kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 7 that Fig. 8 provides for the embodiment of the present invention;

Fig. 9 is the networking structure figure that the network element of the mobile network in the embodiment of the present invention is MME;

A kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 9 that Figure 10 provides for the embodiment of the present invention;

The network element of mobile network in Figure 11 embodiment of the present invention is the networking structure figure of eNodeB;

A kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Figure 11 that Figure 12 provides for the embodiment of the present invention;

The another kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 5 that Figure 13 provides for the embodiment of the present invention;

A kind of access network discovery selection functional entity that Figure 14 provides for the embodiment of the present invention;

A kind of mobile network's that Figure 15 provides for the embodiment of the present invention network element;

A kind of system of obtaining WLAN configuration information that Figure 16 provides for the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.

As shown in Figure 3, be a kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, the method comprises:

Step S301: access network discovery selection functional entity receives the first registration message that mobile network's network element sends, described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment.

Described mobile network's network element can obtain wireless local area network information corresponding to subscriber equipment current location in the following manner: each WLAN that described mobile network's network element is pre-configured in its compass of competency and the mapping relations of described each WLAN position information, described mobile network's network element is searched after described mapping relations according to the positional information of described subscriber equipment, obtains wireless local area network information corresponding to described subscriber equipment current location.

Certainly, it will be appreciated by those skilled in the art that, described mobile network's network element can also obtain wireless local area network information corresponding to subscriber equipment current location by other approach, for example, described mobile network's network element sends request to the network equipment that configures the mapping relations of WLAN and its position information, so that the described network equipment is to described mobile network's wireless local area network information corresponding to network element transmission subscriber equipment current location.

Wherein, the mobile network's of the embodiment of the present invention network element can include but not limited to following one of arbitrarily: MME, SGW, PGW, eNodeB, RNC, BSC, SGSN.

Step S302: described access network discovery selection functional entity, according to described the first registration message, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, network element by mobile network is to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in mobile network's network element in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in mobile network's network element, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity.

As shown in Figure 4, the another kind providing for the embodiment of the present invention obtains the method for WLAN configuration information, and the method comprises:

Step S401: mobile network's network element, according to the positional information of subscriber equipment, is determined wireless local area network information corresponding to described subscriber equipment current location.

Described mobile network's network element can obtain wireless local area network information corresponding to subscriber equipment current location in the following manner: each WLAN that described mobile network's network element is pre-configured in its compass of competency and the mapping relations of described each WLAN position information, described mobile network's network element is searched after described mapping relations according to the positional information of described subscriber equipment, determines wireless local area network information corresponding to described subscriber equipment current location.

Step S402: described mobile network's network element sends the first registration message to access network discovery selection functional entity, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment, so that described access network discovery selection functional entity records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

As shown in Figure 5,, wherein, there is interface between PGW and access network discovery selection functional entity in the networking structure figure for the network element of the mobile network in the embodiment of the present invention is PGW.

As shown in Figure 6, a kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 5 providing for the embodiment of the present invention, in the present embodiment, PGW assists access network discovery selection functional entity to obtain the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, and this embodiment comprises:

S601:UE sends and to adhere to request (Attach Request) or PDN connects request to create (PDN Connction Setup Request) message to MME, described in adhere to the positional information that request or PDN connection request to create are carried UE;

S602:MME sends and creates session request (Create Session Request) message to SGW, and described establishment conversation request message is carried the positional information of UE;

S603:SGW sends and creates conversation request message to PGW, and described establishment conversation request message is carried the positional information of UE;

S604:PGW is UE distributing IP (Internet Protocol, Internet protocol) address and temporary mark (IDentification, abbreviation: ID);

PGW sends and creates conversational response (Create Session Response) message to SGW, and described establishment conversational response message is carried the identification information of UE, and the identification information of described UE comprises the temporary mark of described UE, and/or the IP address of described UE;

S605:PGW is according to the positional information of UE, determine the wireless local area network information corresponding with UE current location, described wireless local area network information comprises WLAN service set (Service SetIDentification, be called for short: SSID) or WLAN basic service set identification (Base Service SetIDentification, is called for short: BSSID);

PGW can obtain wireless local area network information corresponding to UE current location in the following manner: each WLAN in its compass of competency that PGW is pre-configured and the mapping relations of described each WLAN position information, described PGW searches after described mapping relations according to the positional information of UE, obtains wireless local area network information corresponding to UE current location;

Certainly, it will be appreciated by those skilled in the art that, PGW can also obtain wireless local area network information corresponding to UE current location by other approach, for example, PGW sends request to the network equipment that configures the mapping relations of WLAN and its position information, so that the described network equipment is to described mobile network's wireless local area network information corresponding to network element transmission UE current location;

PGW determines after the wireless local area network information corresponding with UE current location, PGW sends first registration (Register) message to access network discovery selection functional entity, and described the first registration message comprises wireless local area network information that UE current location is corresponding and the identification information of described UE;

Access network discovery selection functional entity receives after described the first registration message, according to described the first registration message, records the mapping relations between wireless local area network information corresponding to UE current location and the identification information of described UE;

S606:SGW sends and creates conversational response message to MME, and described establishment conversational response message is carried the identification information of UE;

It should be noted that, this step S606 can afterwards, or occur before step S605 simultaneously, did not have sequencing;

S607: if MME receives the Attach Request message that UE sends, MME sends initialization context creation request (Initial Context Setup Request) message and adheres to acceptance (AttachAccept) message to eNodeB; Or

If MME receives the PDN connection request to create message that UE sends, MME sends bearer context request to create (Bearer Context Setup Request) message and PDN connection establishment response (PDN ConnectionSetup Response) message to eNodeB;

Any one message in above-mentioned two kinds of message that send to eNodeB can be carried the identification information of UE, for example, when MME receives the Attach Request message that UE sends, the initialization context creation request message that MME sends to eNodeB and adhering to is accepted one of any all identification informations of portability UE of message;

S608:eNodeB sends Radio Resource to UE and controls (Radio Resource Control, abbreviation: RRC) connect configuration messages, described RRC connects the identification information that configuration messages carries UE;

S609:UE sends RRC connection to eNodeB and has configured (RRC ConnectionConfiguration Complete) message;

S610:eNodeB sends initialization context creation response (Initial Context SetupResponse) message or bearer context establishment response (Bearer Context Setup Response) message to MME, particularly:

If eNodeB receives the initialization context creation request message of MME transmission and adheres to and accept message, eNodeB sends initialization context creation response message to MME; Or

If eNodeB receives bearer context request to create message and PDN connection establishment response message that MME sends, eNodeB sends bearer context to MME and creates response message;

S611:MME sends and revises session request (Modify Session Request) message to SGW;

S612:MME receives modification conversational response (the Modify Session Response) message that SGW sends;

Security association between S613:UE foundation and access network discovery selection functional entity;

S614:UE sends access network information request (AccessNetwork Information Request) message to access network discovery selection functional entity, and described access network information request message carries the identification information of UE;

Due to what preserve in access network discovery selection functional entity, be the mapping relations between wireless local area network information corresponding to UE current location and the identification information of UE, therefore, UE need to send the identification information of UE to access network discovery selection functional entity, to obtain the wireless local area network information associated with identification information;

Alternatively, described access network information request message carries the access capability of UE;

S615: access network discovery selection functional entity is according to the identification information of the UE in access network information request message, search wireless local area network information corresponding to UE current location associated with the identification information of UE, and sending access network information response (Access Network Information Response) message to UE, described access network information response message carries wireless local area network information corresponding to UE current location;

Whether S616:UE initiates Wi-Fi access according to strategy decision.

In the present embodiment, UE is by LTE access way access to mobile network, and for other access waies, as GERAN or UTRAN, its realization flow and the present embodiment similar, does not repeat them here.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, by PGW to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in PGW in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in PGW, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network.

As shown in Figure 7,, wherein, there is interface between SGW and access network discovery selection functional entity in the networking structure figure for the network element of the mobile network in the embodiment of the present invention is SGW.

As shown in Figure 8, a kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 7 providing for the embodiment of the present invention, in the present embodiment, SGW assists access network discovery selection functional entity to obtain the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, and this embodiment comprises:

S801:UE sends and to adhere to request or PDN connects request to create message to MME, described in adhere to request or PDN connects the positional information that request to create is carried UE;

S802:MME sends and creates conversation request message to SGW, and described establishment conversation request message is carried the positional information of UE;

S803:SGW sends and creates conversation request message to PGW;

S804:PGW is UE distributing IP address;

PGW sends and creates conversational response message to SGW, and described establishment conversational response message is carried the IP address of UE;

S805:SGW is the temporary mark that UE distributes UE;

SGW sends and creates conversational response message to MME, and described establishment conversational response message is carried the identification information of UE, and the identification information of described UE comprises the temporary mark of described UE, and/or the IP address of described UE;

S806:SGW, according to the positional information of UE, determines the wireless local area network information corresponding with UE current location, and described wireless local area network information comprises WLAN SSID or WLAN BSSID;

SGW can obtain wireless local area network information corresponding to UE current location in the following manner: each WLAN in its compass of competency that SGW is pre-configured and the mapping relations of described each WLAN position information, described SGW searches after described mapping relations according to the positional information of UE, obtains wireless local area network information corresponding to UE current location;

Certainly, it will be appreciated by those skilled in the art that, SGW can also obtain wireless local area network information corresponding to UE current location by other approach, for example, SGW sends request to the network equipment that configures the mapping relations of WLAN and its position information, so that the described network equipment is to described mobile network's wireless local area network information corresponding to network element transmission UE current location;

SGW determines after the wireless local area network information corresponding with UE current location, SGW sends first registration (Register) message to access network discovery selection functional entity, and described the first registration message comprises wireless local area network information that UE current location is corresponding and the identification information of described UE;

S807: if MME receives the Attach Request message that UE sends, MME sends initialization context creation request message and adheres to and accept message to eNodeB; Or

If MME receives the PDN connection request to create message that UE sends, MME sends bearer context request to create message and PDN connection establishment response message to eNodeB;

It should be noted that, this step S807 can afterwards, or occur before step S806 simultaneously, did not have sequencing;

S808:eNodeB sends Radio Resource control connection configuration messages to UE, and described Radio Resource control connection configuration messages carries the identification information of UE;

S809:UE sends Radio Resource control connection to eNodeB and has configured message;

S810:eNodeB sends initialization context creation response message or bearer context establishment response message to MME, particularly:

S811:MME sends and revises conversation request message to SGW;

S812:MME receives the modification conversational response message that SGW sends;

Security association between S813:UE foundation and access network discovery selection functional entity;

S814:UE sends access network information request message to access network discovery selection functional entity, and described access network information request message carries the identification information of UE;

Due to what preserve in access network discovery selection functional entity, be the mapping relations between wireless local area network information corresponding to UE current location and the identification information of UE, therefore, UE need to send the identification information of UE to access network discovery selection functional entity, to obtain the wireless local area network information associated with identification information; Alternatively, described access network information request message carries the access capability of UE;

S815: access network discovery selection functional entity is according to the identification information of the UE in access network information request message, search wireless local area network information corresponding to UE current location associated with the identification information of UE, and sending access network information response message to UE, described access network information response message carries wireless local area network information corresponding to UE current location;

Whether S816:UE initiates Wi-Fi access according to strategy decision.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, by SGW to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in SGW in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in SGW, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network.

As shown in Figure 9,, wherein, there is interface between MME and ANDSF in the networking structure figure for the network element of the mobile network in the embodiment of the present invention is MME.

As shown in figure 10, a kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 9 providing for the embodiment of the present invention, in the present embodiment, MME assists access network discovery selection functional entity to obtain the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, and this embodiment comprises:

S1001:UE sends and to adhere to request or PDN connects request to create message to MME, described in adhere to request or PDN connects the positional information that request to create is carried UE;

S1002:MME sends and creates conversation request message to SGW;

S1003:SGW sends and creates conversation request message to PGW;

S1004:PGW is UE distributing IP address;

S1005:MME receives the establishment conversational response message that SGW sends, and described establishment conversational response message is carried the IP address of UE;

S1006:MME is the temporary mark that UE distributes UE;

If MME receives the Attach Request message that UE sends, MME sends initialization context creation request message and adheres to and accept message to eNodeB; Or

Any one message in above-mentioned two kinds of message that send to eNodeB can be carried the identification information of UE, the identification information of described UE comprises the temporary mark of described UE, and/or the IP address of described UE, for example, when MME receives the Attach Request message that UE sends, the initialization context creation request message that MME sends to eNodeB and adhering to is accepted one of any all identification informations of portability UE of message;

S1007:MME, according to the positional information of UE, determines the wireless local area network information corresponding with UE current location, and described wireless local area network information comprises WLAN SSID or WLAN BSSID;

MME can obtain wireless local area network information corresponding to UE current location in the following manner: each WLAN in its compass of competency that MME is pre-configured and the mapping relations of described each WLAN position information, described MME searches after described mapping relations according to the positional information of UE, obtains wireless local area network information corresponding to UE current location;

Certainly, it will be appreciated by those skilled in the art that, MME can also obtain wireless local area network information corresponding to UE current location by other approach, for example, MME sends request to the network equipment that configures the mapping relations of WLAN and its position information, so that the described network equipment is to described mobile network's wireless local area network information corresponding to network element transmission UE current location;

MME determines after the wireless local area network information corresponding with UE current location, MME sends first registration (Register) message to access network discovery selection functional entity, and described the first registration message comprises wireless local area network information that UE current location is corresponding and the identification information of described UE;

S1008:eNodeB sends Radio Resource control connection configuration messages to UE, and described Radio Resource control connection configuration messages carries the identification information of UE;

It should be noted that, this step S1008 can afterwards, or occur before step S1007 simultaneously, did not have sequencing;

S1009:UE sends Radio Resource control connection to eNodeB and has configured message;

S1010:eNodeB sends initialization context creation response message or bearer context establishment response message to MME, particularly:

S1011:MME sends and revises conversation request message to SGW;

S1012:MME receives the modification conversational response message that SGW sends;

Security association between S1013:UE foundation and access network discovery selection functional entity;

S1014:UE sends access network information request message to access network discovery selection functional entity, and described access network information request message carries the identification information of UE;

S1015: access network discovery selection functional entity is according to the identification information of the UE in access network information request message, search wireless local area network information corresponding to UE current location associated with the identification information of UE, and sending access network information response message to UE, described access network information response message carries wireless local area network information corresponding to UE current location;

Whether S1016:UE initiates Wi-Fi access according to strategy decision.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, by MME to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in MME in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in MME, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network.

As shown in figure 11,, wherein, there is interface between eNodeB and access network discovery selection functional entity in the networking structure figure for the network element of the mobile network in the embodiment of the present invention is eNodeB.

As shown in figure 12, a kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Figure 11 providing for the embodiment of the present invention, in the present embodiment, eNodeB assists access network discovery selection functional entity to obtain the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, and this embodiment comprises:

S1201:UE sends and to adhere to request or PDN connects request to create to eNodeB, and described in being forwarded to MME by eNodeB, adheres to request or PDN connects request to create message, wherein, described in adhere to request or PDN connects the positional information that request to create message is carried UE;

S1202:MME sends and creates conversation request message to SGW;

S1203:SGW sends and creates conversation request message to PGW;

S1204:PGW is UE distributing IP address;

S1205:SGW sends and creates conversational response message to MME, and described establishment conversational response message is carried the IP address of UE;

S1206: if MME receives the Attach Request message that UE sends, MME sends initialization context creation request message and adheres to and accept message to eNodeB; Or

The IP address that any one message in above-mentioned two kinds of message that send to eNodeB can be carried UE, for example, when MME receives the Attach Request message that UE sends, the initialization context creation request message that MME sends to eNodeB and adhering to is accepted one of any all IP addresses of portability UE of message;

S1207:eNodeB is the temporary mark that UE distributes UE;

ENodeB sends Radio Resource control connection configuration messages to UE, and described Radio Resource control connection configuration messages carries the identification information of UE, and the identification information of described UE comprises the temporary mark of described UE, and/or the IP address of described UE;

S1208:eNodeB, according to the positional information of UE, determines the wireless local area network information corresponding with UE current location, and described wireless local area network information comprises WLAN SSID or WLAN BSSID;

ENodeB can obtain wireless local area network information corresponding to UE current location in the following manner: each WLAN in its compass of competency that eNodeB is pre-configured and the mapping relations of described each WLAN position information, described eNodeB searches after described mapping relations according to the positional information of UE, obtains wireless local area network information corresponding to UE current location;

Certainly, it will be appreciated by those skilled in the art that, eNodeB can also obtain wireless local area network information corresponding to UE current location by other approach, for example, eNodeB sends request to the network equipment that configures the mapping relations of WLAN and its position information, so that the described network equipment is to described mobile network's wireless local area network information corresponding to network element transmission UE current location;

ENodeB determines after the wireless local area network information corresponding with UE current location, eNodeB sends first registration (Register) message to access network discovery selection functional entity, and described the first registration message comprises wireless local area network information that UE current location is corresponding and the identification information of described UE;

S1209:UE sends Radio Resource control connection to eNodeB and has configured message;

It should be noted that, this step S1209 can afterwards, or occur before step S1208 simultaneously, did not have sequencing;

S1210:eNodeB sends initialization context creation response message or bearer context establishment response message to MME, particularly:

S1211:MME sends and revises conversation request message to SGW;

S1212:MME receives the modification conversational response message that SGW sends;

Security association between S1213:UE foundation and access network discovery selection functional entity;

S1214:UE sends access network information request message to access network discovery selection functional entity, and described access network information request message carries the identification information of UE;

S1215: access network discovery selection functional entity is according to the identification information of the UE in access network information request message, search wireless local area network information corresponding to UE current location associated with the identification information of UE, and sending access network information response message to UE, described access network information response message carries wireless local area network information corresponding to UE current location;

Whether S1216:UE initiates Wi-Fi access according to strategy decision.

In the present embodiment, UE is by LTE access way access to mobile network, for other access waies, as GERAN or UTRAN, the mapping relations of each WLAN and described each WLAN position information can be configured on BSC or RNC, its realization flow and the present embodiment similar, does not repeat them here.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, by eNodeB to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in eNodeB in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in eNodeB, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network.

As shown in figure 13, the another kind of method realization flow figure that obtains WLAN configuration information under the networking structure of Fig. 5 providing for the embodiment of the present invention, the present embodiment for UE access network after, the scene that the position of described UE changes, particularly, it is example that the UE of take triggers switching (Handover) flow process, and this embodiment comprises:

S1301:UE carries out switching flow;

Positional information after S1302:PGW changes according to UE position, determines with UE position and changes rear corresponding wireless local area network information, described wireless local area network information comprises WLAN SSID or WLANBSSID;

PGW can obtain in the following manner UE position and change rear corresponding wireless local area network information: each WLAN in its compass of competency that PGW is pre-configured and the mapping relations of described each WLAN position information, positional information after described PGW changes according to the position of UE is searched after described mapping relations, obtains UE position and changes rear corresponding wireless local area network information;

Certainly, it will be appreciated by those skilled in the art that, PGW can also obtain UE position and change rear corresponding wireless local area network information by other approach, for example, PGW sends request to the network equipment that configures the mapping relations of WLAN and its position information so that the described network equipment to described mobile network's network element, send UE position and change after corresponding wireless local area network information;

PGW determines with after wireless local area network information corresponding after the change of UE position, PGW sends second registration (Register) information to access network discovery selection functional entity, described the second log-on message comprises that UE position changes rear corresponding wireless local area network information and the identification information of described UE, the identification information of described UE comprises the temporary mark of described UE, and/or the IP address of described UE;

Access network discovery selection functional entity receives after described the second registration message, upgrades UE position change rear corresponding wireless local area network information and the mapping relations between the identification information of described UE according to described the second log-on message;

Alternatively, access network discovery selection functional entity is upgraded the identification information of UE;

S1303: access network discovery selection functional entity is according to the identification information of the subscriber equipment in the second registration message, search the UE position associated with the identification information of UE and change rear corresponding wireless local area network information, and corresponding wireless local area network information after initiatively changing to UE propelling movement UE position;

Alternatively, corresponding wireless local area network information after ANDSF can also directly change according to the UE position in the second registration message, corresponding wireless local area network information after initiatively pushing described UE position and change to UE;

Whether S1304:UE initiates Wi-Fi according to strategy decision switches.

At UE occurrence positions, more realization flow and above-mentioned flow process during new technological process is similar, at this, narrate no longer one by one, wherein, described position update flow comprises TAU (Tracking Area Update, tracking area position is upgraded) flow process or RAU (Routing Area Update, position, Route Area is upgraded) flow process.

In the present embodiment, can also other mobile network network element (for example: SGW, MME or eNodeB) each WLAN in upper pre-configured its compass of competency and the mapping relations of described each WLAN position information, the flow process of its realization flow and the present embodiment is similar, at this, narrates no longer one by one.

In addition, in the present embodiment, UE is by LTE access way access to mobile network, for other access waies, as GERAN or UTRAN, can be by the mapping relations of each WLAN in pre-configured its compass of competency and described each WLAN position information on SGSN or RNC or BSC, and the wireless local area network information of correspondence and the mapping relations between the identification information of described UE after upgrading UE position and changing, its realization flow and the present embodiment similar, does not repeat them here.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, the wireless local area network information of correspondence and the identification information of described subscriber equipment after changing to access network discovery selection functional entity report of user device location by PGW, make access network discovery selection functional entity can upgrade in time location of user equipment corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment after changing, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in PGW in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in PGW, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when location of user equipment changes, access network discovery selection functional entity can change by the position of PGW perception subscriber equipment, and corresponding wireless local area network information after initiatively changing to subscriber equipment propelling movement location of user equipment, guaranteed that the wireless local area network information on subscriber equipment can be upgraded in time, reduced the time delay of subscriber equipment switching WLAN.

As shown in figure 14, a kind of access network discovery selection functional entity for the embodiment of the present invention provides, comprising:

Receiving element 1401, the first registration message sending for receiving mobile network's network element, described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment;

Wherein, described wireless local area network information comprises WLAN service set or WLAN basic service set identification, and the identification information of described subscriber equipment comprises the temporary mark of described subscriber equipment, and/or the IP address of described subscriber equipment;

Record cell 1402, the first registration message for receiving according to described receiving element 1401, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

In the present embodiment, the access network information request message that described receiving element 1401 can also send for receiving described subscriber equipment, described access network information request message carries the identification information of described subscriber equipment,

, this access network discovery selection functional entity also comprises:

The first transmitting element, be used for according to the identification information of the subscriber equipment of the access network information request message of described receiving element 1401 receptions, to described subscriber equipment, send access network information response message, described access network information response message carries wireless local area network information corresponding to described subscriber equipment current location.

In the present embodiment, the second registration message that described receiving element 1401 can also send for receiving described mobile network's network element, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment

, this access network discovery selection functional entity also comprises:

Updating block, for the second registration message receiving according to described receiving element 1401, upgrades described location of user equipment and changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment;

The second transmitting element, for the second registration message receiving according to described receiving element 1401, corresponding wireless local area network information after initiatively pushing described location of user equipment and change to described subscriber equipment.

A kind of access network discovery selection functional entity that the embodiment of the present invention provides, by wireless local area network information corresponding to mobile network's reported by network elements subscriber equipment present position and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network, secondly, when location of user equipment changes, access network discovery selection functional entity can be by mobile network the position of network element perception subscriber equipment change, and corresponding wireless local area network information after initiatively changing to subscriber equipment propelling movement location of user equipment, guaranteed that the wireless local area network information on subscriber equipment can be upgraded in time, reduced the time delay of subscriber equipment switching WLAN.

As shown in figure 15, a kind of mobile network's who provides for the embodiment of the present invention network element, comprising:

Determining unit 1501, for according to the positional information of subscriber equipment, determines wireless local area network information corresponding to described subscriber equipment current location;

Wherein, described wireless local area network information comprises WLAN service set or WLAN basic service set identification;

Transmitting element 1502, for determining after wireless local area network information corresponding to described subscriber equipment current location in described determining unit 1501, to access network discovery selection functional entity, send the first registration message, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment, so that described access network discovery selection functional entity records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

Described mobile network's network element also comprises:

Dispensing unit, for each WLAN in pre-configured described mobile network's network element compass of competency and the mapping relations of described each WLAN position information, so that described determining unit 1501 obtains wireless local area network information corresponding to described subscriber equipment current location according to the pre-configured mapping relations of described dispensing unit.

In the present embodiment, when described determining unit 1501 also changes for the position at described subscriber equipment, according to the positional information after the change of described subscriber equipment, determine that described location of user equipment changes rear corresponding wireless local area network information,

, described transmitting element 1502 is also for determining that in described determining unit 1501 described location of user equipment changes after rear corresponding wireless local area network information, to described access network discovery selection functional entity, send the second registration message, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment, so that upgrading described location of user equipment, described access network discovery selection functional entity changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

In addition, described transmitting element 1502 can also be for sending the identification information of described subscriber equipment to described subscriber equipment, the identification information of described subscriber equipment comprises the temporary mark of described subscriber equipment, and/or the internet protocol address of described subscriber equipment, so that subscriber equipment is according to the identification information of described subscriber equipment, to wireless local area network information corresponding to subscriber equipment position described in the request of access network discovery selection functional entity.

A kind of mobile network's that the present embodiment provides network element, by transmitting element to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in mobile network's network element in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in mobile network's network element, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when in the compass of competency of mobile network's network element, WLAN changes, for example there is new WLAN to increase, described mobile network's network element can configure the mapping relations between relevant WLAN and its position information in time, make when subscriber equipment access or change in location, described mobile network's network element can be notified access network discovery selection functional entity in time, make access network discovery selection functional entity can obtain in time up-to-date wireless local area network information corresponding to subscriber equipment current location and the mapping relations between the identification information of subscriber equipment, again, when location of user equipment changes, mobile network's network element can redefine location of user equipment by determining unit and change rear corresponding wireless local area network information, and inform access network discovery selection functional entity by transmitting element, the position of access network discovery selection functional entity perception in time subscriber equipment is changed.

As shown in figure 16, be a kind of system of obtaining WLAN configuration information that the embodiment of the present invention provides, this system comprises: mobile network's network element 1601, and access network discovery selection functional entity 1602, wherein,

Described mobile network's network element 1601, be used for according to the positional information of subscriber equipment, to access network discovery selection functional entity 1602, send the first registration messages, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment;

Described access network discovery selection functional entity 1602, the first registration message for sending according to described mobile network's network element 1601, records wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment.

In the present embodiment, described mobile network's network element 1601 is also for sending the identification information of described subscriber equipment to described subscriber equipment, the identification information of described subscriber equipment comprises the temporary mark of described subscriber equipment, and/or the internet protocol address of described subscriber equipment;

; described access network discovery selection functional entity 1602 receives after the access network information request message of described subscriber equipment transmission; to described subscriber equipment, send access network information response message; wherein; described access network information request message carries the identification information of described subscriber equipment, and described access network information response message carries wireless local area network information corresponding to described subscriber equipment current location.

In the present embodiment, described mobile network's network element 1601 is also for the positional information after changing according to described location of user equipment, to described access network discovery selection functional entity 1602, send the second registration message, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment

; described access network discovery selection functional entity 1602 is the second registration message for sending according to described mobile network's network element 1601 also, upgrades described location of user equipment and changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment;

Wherein, described access network discovery selection functional entity 1602 is also for according to described the second registration message, corresponding wireless local area network information after initiatively pushing described location of user equipment and change to described subscriber equipment.

Described mobile network's network element 1601 comprises:

Determining unit, be used for according to the current location information of described subscriber equipment, determine wireless local area network information corresponding to described subscriber equipment current location, or while changing in the position of described subscriber equipment, positional information after changing according to the position of described subscriber equipment, determines that described location of user equipment changes rear corresponding wireless local area network information;

Transmitting element, for determining after wireless local area network information corresponding to described subscriber equipment current location in described determining unit, to described access network discovery selection functional entity, send described the first registration message, or determine that in described determining unit described location of user equipment changes after rear corresponding wireless local area network information, sends described the second registration message to described access network discovery selection functional entity.

Described mobile network's network element 1601 also comprises:

Dispensing unit, for each WLAN in pre-configured described mobile network's network element 1601 compasss of competency and the mapping relations of described each WLAN position information, so that described determining unit obtains wireless local area network information corresponding to described subscriber equipment current location according to the pre-configured described mapping relations of described dispensing unit.

Described access network discovery selection functional entity 1602 comprises:

Receiving element, for receiving described first registration message of described mobile network's network element 1601 transmissions, or receives described second registration message of described mobile network's network element 1601 transmissions;

Record cell, when receiving the first registration message of network element 1601 transmissions of described mobile network when described receiving element, according to described the first registration message, record wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment;

Updating block, when receiving the second registration message of network element 1601 transmissions of described mobile network when described receiving element, according to described the second registration message, upgrade described location of user equipment and change rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

A kind of method of obtaining WLAN configuration information that the embodiment of the present invention provides, system, access network discovery selection functional entity and mobile network's network element, a kind of method of obtaining wireless local area network information under 3GPP access is provided, improved user's experience, by shunting, reduced the load of 3GPP Access Network, in addition, network element by mobile network is to wireless local area network information corresponding to access network discovery selection functional entity report of user equipment current location and the identification information of described subscriber equipment, make access network discovery selection functional entity can obtain in time the mapping relations between wireless local area network information corresponding to subscriber equipment current location and the identification information of described subscriber equipment, possesses the ability that wireless local area network information corresponding to its position is provided to subscriber equipment, in addition, the mapping relations of each WLAN in mobile network's network element in pre-configured its compass of competency and described each WLAN position information, described mapping relations are distributed to be kept in mobile network's network element, alleviated the load of access network discovery selection functional entity, simplified the information configuration of access network discovery selection functional entity, secondly, when WLAN changes, for example there is new WLAN to increase, subscriber equipment and access network discovery selection functional entity are carried out alternately, make subscriber equipment can obtain in time wireless local area network information corresponding to described UE current location, reduced the time delay of subscriber equipment accessing WLAN network, again, when location of user equipment changes, access network discovery selection functional entity can be by mobile network the position of network element perception subscriber equipment change, and corresponding wireless local area network information after initiatively changing to subscriber equipment propelling movement location of user equipment, guaranteed that the wireless local area network information on subscriber equipment can be upgraded in time, reduced the time delay of subscriber equipment switching WLAN.

In a word, the foregoing is only the preferred embodiment of technical solution of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a method of obtaining WLAN configuration information, is characterized in that, the method comprises:

Access network discovery selection functional entity receives the first registration message of mobile network's network element transmission, described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment, wherein, wireless local area network information corresponding to described subscriber equipment current location is that described mobile network's network element is searched each WLAN in described mobile network's pre-configured in described mobile network's network element network element compass of competency according to the positional information of described subscriber equipment and the mapping relations of described each WLAN position information obtain,

2. method according to claim 1, is characterized in that, described method also comprises:

Described mobile network's network element sends the identification information of described subscriber equipment to described subscriber equipment, the identification information of described subscriber equipment comprises the temporary mark of described subscriber equipment, and/or the internet protocol address of described subscriber equipment.

3. method according to claim 2, is characterized in that, described method also comprises:

Described access network discovery selection functional entity receives the access network information request message that described subscriber equipment sends, and described access network information request message carries the identification information of described subscriber equipment;

Described access network discovery selection functional entity is according to the identification information of the subscriber equipment in described access network information request message, to described subscriber equipment, send access network information response message, described access network information response message carries wireless local area network information corresponding to described subscriber equipment current location.

4. method according to claim 1, is characterized in that, described method also comprises:

If the position of described subscriber equipment changes, described access network discovery selection functional entity receives the second registration message of described mobile network's network element transmission, and described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment;

Described access network discovery selection functional entity, according to described the second registration message, is upgraded described location of user equipment and is changed rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

5. method according to claim 4, is characterized in that, described method also comprises:

Described access network discovery selection functional entity is according to the identification information of the subscriber equipment in described the second registration message, corresponding wireless local area network information after initiatively pushing described location of user equipment and change to described subscriber equipment.

6. a method of obtaining WLAN configuration information, is characterized in that, the method comprises:

Mobile network's network element is according to the positional information of subscriber equipment, determine wireless local area network information corresponding to described subscriber equipment current location, wherein, in described mobile network's network element, be provided with each WLAN in described mobile network's network element compass of competency and the mapping relations of described each WLAN position information in advance, and described mobile network's network element is according to the positional information of described subscriber equipment, determine wireless local area network information corresponding to described subscriber equipment current location, comprise: described mobile network's network element is searched after described mapping relations according to the positional information of described subscriber equipment, obtain wireless local area network information corresponding to described subscriber equipment current location,

7. method according to claim 6, is characterized in that, described method also comprises:

8. method according to claim 7, is characterized in that, described mobile network's network element sends the identification information of described subscriber equipment to described subscriber equipment, comprising:

Described mobile network's network element passes through to create conversational response message and Radio Resource control connection configuration messages, or by RAB request to create message, sends the identification information of described subscriber equipment to described subscriber equipment.

9. method according to claim 7, is characterized in that, described method also comprises:

10. method according to claim 6, is characterized in that, described method also comprises:

If the position of described subscriber equipment changes, the positional information after described mobile network's network element changes according to the position of described subscriber equipment, determines that described location of user equipment changes rear corresponding wireless local area network information;

Described mobile network's network element sends the second registration message to described access network discovery selection functional entity, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment, so that described access network discovery selection functional entity is upgraded described location of user equipment, changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

11. methods according to claim 10, is characterized in that, described method also comprises:

12. 1 kinds of access network discovery selection functional entity, is characterized in that, comprising:

Receiving element, the first registration message sending for receiving mobile network's network element, described the first registration message comprises wireless local area network information that subscriber equipment current location is corresponding and the identification information of described subscriber equipment, wherein, wireless local area network information corresponding to described subscriber equipment current location is that described mobile network's network element is searched each WLAN in described mobile network's pre-configured in described mobile network's network element network element compass of competency according to the positional information of described subscriber equipment and the mapping relations of described each WLAN position information obtain,

13. entities according to claim 12, is characterized in that, the access network information request message that described receiving element also sends for receiving described subscriber equipment, and described access network information request message carries the identification information of described subscriber equipment;

, described entity also comprises:

The first transmitting element, be used for according to the identification information of the subscriber equipment of the access network information request message of described receiving element reception, to described subscriber equipment, send access network information response message, described access network information response message carries wireless local area network information corresponding to described subscriber equipment current location.

14. according to the entity described in claim 12 or 13, it is characterized in that, the second registration message that described receiving element also sends for receiving described mobile network's network element, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment;

, described entity also comprises:

Updating block, for the second registration message receiving according to described receiving element, upgrades described location of user equipment and changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

15. entities according to claim 14, is characterized in that, also comprise:

The second transmitting element, for the second registration message receiving according to described receiving element, corresponding wireless local area network information after initiatively pushing described location of user equipment and change to described subscriber equipment.

16. 1 kinds of mobile networks' network element, is characterized in that, comprising:

Determining unit, be used for according to the positional information of subscriber equipment, determine wireless local area network information corresponding to described subscriber equipment current location, wherein, in described mobile network's network element, be provided with each WLAN in described mobile network's network element compass of competency and the mapping relations of described each WLAN position information in advance, and described determining unit, specifically for searching after described mapping relations according to the positional information of described subscriber equipment, obtains wireless local area network information corresponding to described subscriber equipment current location;

17. network elements according to claim 16, is characterized in that:

When described determining unit also changes for the position at described subscriber equipment, according to the positional information after the change of described subscriber equipment, determine that described location of user equipment changes rear corresponding wireless local area network information;

Described transmitting element is also for determining that in described determining unit described location of user equipment changes after rear corresponding wireless local area network information, to described access network discovery selection functional entity, send the second registration message, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment, so that described access network discovery selection functional entity is upgraded described location of user equipment, changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

18. 1 kinds of systems of obtaining WLAN configuration information, is characterized in that, this system comprises:

Mobile network's network element, be used for according to the positional information of subscriber equipment, to access network discovery selection functional entity, send the first registration message, described the first registration message comprises wireless local area network information that described subscriber equipment current location is corresponding and the identification information of described subscriber equipment, wherein, in described mobile network's network element, be provided with each WLAN in described mobile network's network element compass of competency and the mapping relations of described each WLAN position information in advance, and wireless local area network information corresponding to described subscriber equipment current location is that described mobile network's network element is searched described mapping relations acquisition according to the positional information of described subscriber equipment,

19. systems according to claim 18, it is characterized in that, described mobile network's network element is also for sending the identification information of described subscriber equipment to described subscriber equipment, the identification information of described subscriber equipment comprises the temporary mark of described subscriber equipment, and/or the internet protocol address of described subscriber equipment;

; described access network discovery selection functional entity is also for receiving after the access network information request message of described subscriber equipment transmission; to described subscriber equipment, send access network information response message; wherein; described access network information request message carries the identification information of described subscriber equipment, and described access network information response message carries wireless local area network information corresponding to described subscriber equipment current location.

20. according to the system described in claim 18 or 19, it is characterized in that, described mobile network's network element is also for the positional information after changing according to described location of user equipment, to described access network discovery selection functional entity, send the second registration message, described the second registration message comprises that described location of user equipment changes rear corresponding wireless local area network information and the identification information of described subscriber equipment

; described access network discovery selection functional entity is the second registration message for sending according to described mobile network's network element also, upgrades described location of user equipment and changes rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.

21. systems according to claim 20, it is characterized in that, described access network discovery selection functional entity is also for according to described the second registration message, corresponding wireless local area network information after initiatively pushing described location of user equipment and change to described subscriber equipment.

22. systems according to claim 20, is characterized in that, described mobile network's network element comprises:

23. systems according to claim 20, is characterized in that, described access network discovery selection functional entity comprises:

Receiving element, for receiving described first registration message of described mobile network's network element transmission, or receives described second registration message of described mobile network's network element transmission;

Record cell, when receiving the first registration message of network element transmission of described mobile network when described receiving element, according to described the first registration message, record wireless local area network information corresponding to described subscriber equipment current location and the mapping relations between the identification information of described subscriber equipment;

Updating block, when receiving the second registration message of network element transmission of described mobile network when described receiving element, according to described the second registration message, upgrade described location of user equipment and change rear corresponding wireless local area network information and the mapping relations between the identification information of described subscriber equipment.