WO2014048190A1

WO2014048190A1 - Wlan access processing, access method and apparatus

Info

Publication number: WO2014048190A1
Application number: PCT/CN2013/082054
Authority: WO
Inventors: 胡学川; 霍玉臻; 陈淑; 周娜
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-09-27
Filing date: 2013-08-22
Publication date: 2014-04-03
Also published as: CN103702388B; CN103702388A

Abstract

The invention provides a wireless local area networks (WLAN) access processing, access method and apparatus, wherein said access processing method comprising: ANDSF entity receiving location information reported by UE; ANDSF entity sending WLAN access information to UE according the location information; wherein, the WLAN access information is used to indicate the WLAN network access policy of UE. According to the technical solution of present invention, the technical problems in related technology, users cannot select the appropriate WLAN access according to their actual needs and other technical problems are solved, so as to enhance the user experience.

Description

WLAN access processing, access method and device

The present invention relates to the field of communications, and in particular, to a WLAN access processing, access method, and apparatus. BACKGROUND OF THE INVENTION In order to maintain the competitiveness of the third generation mobile communication system in the communication field, users are provided with faster, less delayed, and more personalized mobile communication services, and at the same time, reduce operating costs of operators, the third generation The 3rd Generation Partnership Project (3GPP) Standards Working Group is working on the Evolved Packet System (EPS). The entire EPS system is divided into two parts: the wireless access network and the core network. The radio access network is composed of an Evolved NodeB (eNB) and a 3G radio network controller (RNC). It is mainly responsible for transmitting and receiving wireless signals, and is connected through the air interface and the terminal. Radio resources, resource scheduling, and access control for the air interface. In the core network, a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Serving GPRS Support Node (SGSN), and a policy are included. The Policy and Charging Rule Function (PCRF), the Serving Gateway (S-GW), and the PDN Gateway (P-GW). As shown in FIG. 1, an evolved packet core network (Evolved Packet Core, EPC for short) system supports 3GPP access. The HSS is a permanent storage location for user subscription data, located in the home network to which the user subscribes. The MME is responsible for control plane related functions such as mobility management, processing of non-access stratum signaling, and management of user mobility management context. The S-GW is an access gateway device connected to the radio access network, and forwards data between the radio access and the P-GW, and buffers the data. The P-GW is a border gateway between the EPS and the Packet Data Network (PDN), and is responsible for the access of the PDN and the forwarding of data between the EPS and the PDN. The PCRF is a policy and charging rule function entity. It is connected to the carrier service network through the receiving interface Rx, and is responsible for providing charging control, online credit control, threshold control, and Quality of Service (QoS). SGSN is GERAN (GSM EDGE radio access network, GSM EDGE radio access network, GSM is the abbreviation of Global System for Mobile communications, namely global mobile communication system, enhanced data rate GSM evolution technology EDGE is Enhanced Data Rate for GSM Evolution Abbreviation) and UTMS Terrestrial Radio Access Network (UTRAN) user access The service support node of the core network is similar in function to the mobility management entity and is responsible for user location update, paging management, and bearer management. As shown in Figure 1, the EPS system also supports non-3GPP access. The interworking with the non-3GPP access is implemented through the S2a/S2b/S2c interface, and the P-GW serves as an anchor point between the 3GPP and the non-3GPP access. Non-3GPP access is divided into credit non-3GPP access and non-credit non-3GPP access. The non-3GPP access can be directly connected to the P-GW through the S2a interface, and the S2a interface uses the Proxy Mobile IP (PMIP) protocol for information exchange. The untrusted non-3GPP access is connected to the P-GW through an Evolved Packet Data Gateway (ePDG). The interface between the ePDG and the P-GW is S2b. The S2c interface provides user plane control and mobility support between User Equipment (UE) and P-GW. The mobility protocol supported by the S2c interface is Mobile IPv6 support for Dual Stack Hosts. And Routers, referred to as DSMIPv6). The rapid development of smart terminals and mobile Internet applications has made mobile data traffic proliferating at an incalculable rate. In order to effectively alleviate the traffic pressure and continue to promote the development of mobile communication services, more and more operators around the world choose to develop wireless local area network (WLAN), and use low-cost, high-bandwidth WLAN as the cellular network. Diversion. The Access Network Discovery and Selection Function (ANDSF) is used as an access anchor to enable intelligent network selection and effective network offloading through interaction between the network and the terminal. Collaborative operational direction. ANDSF develops strategies to help end users choose the best access network standard and achieve synergy for multiple access methods. In the prior art, the ANDSF is proposed in the R8 version in the 23.402 protocol in 3GPP. When the UE wants to select a network for registration, if there are both a 3GPP access network and a non-3GPP access network, the EPS may provide available access network discovery information to the UE through the ANDSF according to the current location information of the UE, or inter-system mobility. The Inter-System Mobility Policy (ISMP) is used by the UE to select the appropriate access network for registration using the information provided by the ANDSF. If there are multiple non-3GPP access networks at the same time, the EPS may provide an Inter-System Routing Policy (ISRP) to the UE through the ANDSF according to the current location information of the UE, and the UE uses the information provided by the ANDSF to select an appropriate one. The access network is offloaded. As shown in Figure 2, the ANDSF is connected to the UE through the S14 interface. The interface uses the Open Mobile Alliance-Device Management (OMA-DM) protocol. In the prior art, the ANDSF can solve the problem of 3GPP handover to non-3GPP access network selection. It can also solve the problem of the offloading of multiple access terminals, such as: IP Flow Mobility capable UE (referred to as IFOM capable UE), which has and activates the multi-access PDN connection capability. A split routing problem of a UE (Multiple Access PDN Connectivity capable UE, abbreviated as MAPCON capable UE) and a UE (Non-seamless WLAN offload capable UE, abbreviated as NS WO capable UE).

WLAN technology is also continuing to develop. Hotspot 2.0 (referred to as HS 2.0) is also called Next Generation Hotspot (NGH), which provides seamless roaming capabilities, enabling WLAN users to have close to cellular networks. User experience and feelings. However, in the related art, the ANDSF entity simply sends out its discovered WLAN information (such as a WLAN list), and the user cannot select an appropriate WLAN access according to his actual needs (such as bandwidth, tariff, etc.), affecting the user experience. In view of the above problems in the related art, an effective solution has not yet been proposed. SUMMARY OF THE INVENTION In the related art, the ANDSF entity simply sends the WLAN information (such as a WLAN list) that is discovered by the user, and the user cannot select a suitable WLAN access and the like according to the actual needs of the user. A WLAN access processing, access method and apparatus to solve at least the above problems. According to an embodiment of the present invention, a method for accessing a WLAN is provided, including: an access network discovery and selection function (ANDSF) entity receiving location information reported by a UE; and an ANDSF entity transmitting the location information to the UE according to the received location information The WLAN access information of the WLAN is used to indicate the access policy of the UE to the WLAN network. The WLAN access information includes at least one of the following information: WLAN geographic location information; location name information of the administrative area where the WLAN is located; WLAN priority information; authentication mode information supported by the WLAN operator; 3GPP association of the third generation partner plan of the WLAN Cell information. The ANDSF entity sends the WLAN access information to the UE according to the received location information, and the ANDSF entity sends the ANDSF management object to the UE according to the received location information, where the WLAN access information is carried in the ANDSF management object. Before receiving the location information reported by the UE, the ANDSF entity includes: the ANDSF entity, in response to the initialization message reported by the UE, requesting the UE to report the location information, where the initialization message carries a command for requesting the WLAN access information to the ANDSF entity. The above ANDSF initialization message is an OMA-DM protocol message. The receiving, by the ANDSF entity, the location information reported by the UE, includes: the ANDSF entity receiving the initialization message reported by the UE, where the specified field in the initialization message carries the location information of the UE. The ANDSF entity receives the initialization message reported by the UE, where the ANDSF entity receives the Open Mobile Alliance device management OMA-DM protocol message reported by the UE, and the device information (Devlnfo) in the OMA-DM protocol message carries the location information of the UE. . Before the ANDSF entity receives the location information reported by the UE, the method includes: the ANDSF entity receives the initialization message reported by the UE; the ANDSF entity sends a response message of the initialization message to the UE; the ANDSF entity receives the request message sent by the UE after receiving the response message, where The request message is used to request WLAN access information from the ANDSF entity. Before receiving the location information reported by the UE, the ANDSF entity further includes: when the WLAN access information changes, the ANDSF entity sends a notification message to the UE. The WLAN access information is obtained by: configuring the WLAN access information in the ANDSF entity in advance; the WLAN actively reports the WLAN access information to the ANDSF entity via the advertisement server; and triggering the trigger message sent by the advertisement server, the WLAN directly The ANDSF entity reports the WLAN access information; the ANDSF entity actively requests the advertised server to report the WLAN access information. According to another embodiment of the present invention, a method for accessing a WLAN is provided, including: receiving, by a UE, wireless local area network WLAN access information delivered by an ANDSF entity of an access network discovery and selection function, where The WLAN access information indicating the access policy of the UE to the WLAN network; the WLAN access information indicated by the UE accessing the foregoing access policy includes at least one of the following information: WLAN geographic location information; location name information of the administrative area where the WLAN is located; Level information; authentication mode information supported by the WLAN operator; 3GPP affiliated cell plan 3GPP associated cell information to which the WLAN belongs. According to still another embodiment of the present invention, a WLAN access processing apparatus is provided, which is located in an ANDSF entity, and includes: a receiving module, configured to receive location information reported by a user equipment UE; and a sending module, configured to be based on the received location The information is used to send the WLAN access information to the UE, where the WLAN access information is used to indicate the access policy of the UE to the WLAN network. The sending module is configured to send WLAN access information to the UE when the WLAN access information includes at least one of the following: WLAN geographic location information; location name information of the administrative area where the WLAN is located; WLAN Priority information; authentication mode information supported by the WLAN operator; 3GPP affiliated cell plan 3GPP-associated cell information to which the WLAN belongs. According to still another embodiment of the present invention, a WLAN access device is provided, which is located in a UE, and includes: a receiving module, configured to receive WLAN access information delivered by an ANDSF entity, where In the access module, the WLAN is instructed to access the WLAN network. The WLAN is configured to indicate the access policy of the UE to the WLAN by using the ANDSF entity. The technical means of wireless access information solves the technical problems in the related art that the user cannot select an appropriate WLAN access according to his actual needs, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a schematic diagram of a packet core network structure of 3GPP and non-3GPP access system access evolution according to the related art; FIG. 2 is an ANDSF non-roaming architecture diagram according to the related art; FIG. 3 is a diagram of an ANDSF non-roaming architecture according to the related art; FIG. 4 is a block diagram showing a structure of an access processing apparatus for a WLAN according to Embodiment 1 of the present invention; FIG. 5 is a flowchart of a method for accessing a WLAN according to Embodiment 2 of the present invention; 6 is a structural block diagram of an access processing apparatus for a WLAN according to Embodiment 2 of the present invention; FIG. 7 is a schematic diagram showing a position of WLAN access information in an ANDSF management object according to Embodiment 4 of the present invention; FIG. 9 is a flowchart of a WLAN discovery and selection method in a PULL mode according to Embodiment 6 of the present invention; FIG. 10 is a PUSH mode according to Embodiment 7 of the present invention; Flow chart of the WLAN discovery and selection method; 11 is a flowchart of a WLAN discovery and selection method in a PUSH mode according to Embodiment 8 of the present invention; FIG. 12 is a flowchart of WLAN active reporting location information according to Embodiment 10 of the present invention; FIG. 13 is a flowchart according to Embodiment 11 of the present invention. The advertisement server triggers a flow chart of the WLAN actively reporting the location information. FIG. 14 is a flowchart of the UE requesting WLAN information from the ANDSF through the packet 3 according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. Considering the related art, the ANDSF entity simply sends the WLAN information it discovers (for example

WLAN list), the user can not select the appropriate WLAN access and other technical problems according to their actual needs. The following provides a related solution in combination with the embodiments, which will be described in detail. Embodiment 1 FIG. 3 is a flowchart of a method for processing access of a WLAN according to Embodiment 1 of the present invention. As shown in FIG. 3, the method includes: Step S302: The ANDSF entity receives the location information reported by the UE. Step S304: The ANDSF entity sends the WLAN access information to the UE according to the received location information, where the WLAN access information is used to indicate UE access policy to the WLAN network. Through the foregoing processing steps, the ANDSF entity sends the indication information for indicating the UE's access policy to the WLAN network to the UE, so that the UE can select an appropriate WLAN access according to the foregoing access policy, and therefore, the ANDSF entity is only solved. It is a simple WLAN information (such as a WLAN list) that is discovered by the user. The user cannot select a suitable WLAN access and other technical problems according to his actual needs, thereby improving the user experience. In this embodiment, the following problems exist in the related art: The 3GPP process cannot be represented by using the DM protocol; the authentication modes supported by different operators are different, and the terminal can only try to access one by one, which affects the performance of the terminal. When the fee is charged, the user experience is not good; multiple WLANs have no priority. When the UE obtains multiple WLANs, the UE cannot know the optimal. The bandwidth after the connection is not good, and the user experience is not good. There is no 3GPP associated cell information. When the UE reports large location information (such as LAI/TAI), the UE puts the LAI/TAI All the WLAN information is delivered. In this case, there is no 3GPP associated cell information, and the UE cannot be accurately located to select a suitable WLAN. The WLAN access information may include at least one of the following information: WLAN geographical location information; location name information of the administrative area where the WLAN is located (eg, city information: XX cafe in the XX street XX building); WLAN priority information; WLAN operation Authentication mode information supported by the provider; 3GPP affiliated cell information of the third generation partner plan of the WLAN. Before the step S304, after receiving the location information reported by the UE, the related data is queried for screening; and then the WLAN access information is sent to the UE. In the step S304, the ANDSF entity sends the WLAN access information to the UE in multiple manners. For example, the message dedicated to the WLAN access information may be directly delivered. In a preferred embodiment of the embodiment, The ANDSF entity sends an ANDSF management object to the UE according to the received location information, where the WLAN access information is carried in the ANDSF management object book. In step S302, the ANDSF entity receives the location information reported by the UE in multiple manners, for example, by receiving a message specific to receiving the location information reported by the UE. In a preferred embodiment of the embodiment, the following may also be adopted. The implementation manner is as follows: The ANDSF entity receives the initialization message reported by the UE, where the specified field in the initialization message carries the location information of the UE, and may be implemented by the following specific processing procedure: The OMA-DM protocol (for example, packet 1 packet) packet, and the device information (Devlnfo) in the OMA-DM protocol packet carries the location information of the UE. In this embodiment, the location information of the UE may be received by: the ANDSF entity receives the initialization message reported by the UE before the ANDSF entity receives the location information reported by the UE; and the ANDSF entity requests the UE to report the response in response to the initialization message. Location information, where the initialization message carries a command for requesting WLAN access information from the ANDSF entity. In this case, the ANDSF entity receives the OMA-DM protocol message reported by the UE (for example, the packet 1 packet) before the ANDSF entity receives the location information reported by the UE; the ANDSF entity responds to the OMA-DM protocol. The message, and requests the UE to report the location information, that is, the initialization message may be an OMA-DM protocol packet. The timing at which the UE requests the WLAN access information from the ANDSF entity is not limited to first sending a message (such as an initialization message) to the ANDSF entity (such as the embodiment shown in FIG. 8), and may be another stage in the process of the ANDSF entity interacting with the UE information. For example, before the ANDSF entity receives the location information reported by the UE, the ANDSF entity receives the initialization message reported by the UE; the ANDSF entity sends a response message of the initialization message to the UE; and the ANDSF entity receives the response message that the UE receives the UE. A request message sent later, wherein the request message is used to request WLAN access information from the ANDSF entity. It should be noted that the above UE receives the response. The timing of sending the request message later is not limited to immediate transmission, and may be any timing after receiving the response message, that is, in the subsequent process after receiving the response message. The ANDSF entity sends a notification message to the UE when the WLAN access information changes. For example, when the WLAN topology associated with the cell cell changes in the ANDSF entity, the notification message is also sent to the UE: Before the ANDSF entity receives the location information reported by the UE, the ANDSF entity sends a notification message to the UE, where the notification message is used. The following information is notified to the UE: The WLAN topology associated with the cell (Cell) in the ANDSF entity changes. In this embodiment, the WLAN access information may be obtained by, but not limited to, one of the following manners: WLAN access information is configured in advance in the ANDSF entity; the WLAN actively reports WLAN access information to the ANDSF entity via the advertisement server; The WLAN directly reports the WLAN access information to the ANDSF entity. The ANDSF entity actively requests the advertised server to report the WLAN access information. In this embodiment, a WLAN access processing device is also provided, which is located in the ANDSF entity, and is used to implement the foregoing embodiments and preferred embodiments. The modules involved are explained. As used hereinafter, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. 4 is a block diagram showing the structure of an access processing apparatus for a WLAN according to Embodiment 1 of the present invention. As shown in FIG. 4, the device includes: a receiving module 40, connected to the sending module 42, configured to receive location information reported by the UE, and a sending module 42 configured to send WLAN access information to the UE according to the received location information, where ,

The WLAN access information is used to indicate an access policy of the UE to the WLAN network. Through the functions implemented by the foregoing modules, the UE can also select an appropriate WLAN access according to the foregoing access policy to provide a user experience. In this embodiment, a processing module (not shown) may be added. After receiving the location information reported by the UE, the related data is queried for screening. Then, the WLAN access information is sent by the sending module. Therefore, the processing is not the focus of the embodiment, and therefore, details are not described herein. In this embodiment, the sending module 42 is configured to send WLAN access information to the UE when the WLAN access information includes at least one of the following information: WLAN geographic location information; Location name information (eg, city information); WLAN priority information; authentication mode information supported by the WLAN operator; 3GPP-related 3GPP partner-related 3GPP-related cell information. Embodiment 2 This embodiment corresponds to Embodiment 1, and the access of the WLAN is described on the UE side. FIG. 5 is a flowchart of a method for accessing a WLAN according to Embodiment 2 of the present invention. As shown in FIG. 5, the method includes: Step S502: The UE receives the WLAN access information that is sent by the ANDSF entity, where the WLAN access information is used to indicate the access policy of the UE to the WLAN network; Step S504, the UE receives Enter the WLAN indicated by the above access policy. In this embodiment, the foregoing access policy includes at least one of the following information: WLAN geographic location information; location name information of an administrative area where the WLAN is located; WLAN priority information; authentication mode information supported by the WLAN operator; third generation of the WLAN The partner plans 3GPP to associate cell information. In this embodiment, a WLAN access device is also provided, which is located in the UE, and is used to implement the foregoing access method. As shown in FIG. 6, the device includes: a receiving module 60, connected to the access module. 62. The WLAN access information sent by the ANDSF entity is received, where the WLAN access information is used to indicate an access policy of the UE to the WLAN network, and the access module 62 is configured to access the WLAN indicated by the access policy. . In order to better understand the above embodiments, the following detailed description will be given in conjunction with Embodiments 3-11. Embodiment 3 This embodiment provides a method for an ANDSF network element to deliver a WLAN location according to location information reported by a UE. In this embodiment, the UE reports the location, and the ANDSF provides the WLAN information to the UE. Its main design idea is -

The ANDSF provides the UE with WLAN geographic location information (including longitude, latitude, altitude, etc.); the ANDSF provides the WLAN local information to the UE;

The ANDSF provides the WLAN priority to the UE; The ANDSF provides the WLAN operator with the authentication mode information to the UE; the ANDSF provides the UE with the 3GPP associated cell information to which the WLAN belongs.

The WLAN management object tree adds WLAN geographic location information (including longitude, latitude, altitude, etc.), city information, priority, operator support authentication mode, and 3GPP associated cell information. For details, see Figure 7. The specific location and sequence of information are independent of the hierarchical order, which means that the information may be a child node or a leaf under any node. In this embodiment, the process of acquiring access and discovery information by the UE in 3GPP is extended. In this embodiment, when the UE sends a packet 1 to the ANDSF server, the UE adds the UE address information to the device information object, so that the UE location information is reported. In Embodiments 4-9, all OMA-DM commands are just examples, and can be implemented with other functions similar to the commands. Example 4

The WLAN management object tree adds WLAN geographic location information (including longitude, latitude, altitude, etc.), city information, priority, operator support authentication mode, and 3GPP associated cell information. An example of the location of the managed object tree in which the added information of Figure 7 is located. As shown in FIG. 7, the 3GPP associated cell information sub-node is added under "X/Access Network Discovery Information/X/Access Network Area/X/WLAN Location", and in addition, "X/Access Network Discovery Information/X" / access network area / X / WLAN location X ", added a sub-tree WLAN location (including WLAN longitude, WLAN latitude, WLAN altitude three leaves), three leaves (WLAN city information, WLAN priority, carrier-supported authentication method). Embodiment 5 This embodiment provides a WLAN discovery and selection method in a PULL mode. In this embodiment, the UE has accessed the mobile core network through the 3GPP or Non-3GPP, and the UE is ready to initiate the data service or the 3GPP location information change during the data service initiation. As shown in FIG. 8, the following steps are performed: Step S802, the packet 1: The UE initializes to the ANDSF. The UE initializes to the ANDSF; the UE sends the packet 1 to the ANDSF, including an Alert command (the purpose is to request the server to initiate a session), a Generic Alert (TJE tells the ANDSF specific tasks, such as the UE to obtain nearby WLAN information), one Replace command (reporting UE device information) Step S804, packet 2: The ANDSF initializes to the UE. The ANDSF response packet 1 acquires location information from the UE through the UE_Location MO at the same time; the ANDSF sends the packet 2 to the UE, including three Status messages (one reply to SyncHdr, one is a response to the Alert command in the packet 1, and one is to the packet 1 In the response of the Replace message), a Get command (requesting the UE to report the location information). Step S806, packet 3: the UE responds to the packet 2, and simultaneously sets the current UE location information (which may be a CellID in the 3GPP,

PLMA, LAI/TAI, may also be Winmax, WLAN, or geographical location in 3GPP2) Reply to ANDSF through UE_Location MO; include two status messages (one reply to SyncHdr, one to Get in Package2) Response), a Result message (reply to Get in Package2, reporting the location information of the UE). Step S808, the ANDSF queries the location information of the WLAN according to the location information of the UE. In addition to the Service Set Identifier (SSID) and/or the Basic Service Set Identifier (BSSID), there are also city information (such as Starbucks, 2nd Floor, Xinjiekou Water City). Geographical location of the WLAN, 3GPP associated cell, priority. The details are as follows: If the UE reports the Cell ID, query the WLAN list in the cell where the user is located in the database, and query the WLAN under the neighboring Cell; if the large location information (such as LAI/TAI) is reported, Then query all the cell lists in the LAI/TAI of this user, and the WLAN in each cell. If the WLAN is reported, the WLAN list of the cell to which the current WLAN belongs belongs is queried in the database, and the WLAN list under the cell near the WLAN is queried. If the query does not have a cell at the current location, then all WLAN lists near the current WLAN are queried. If the reported WINMAX, the WLAN information near the location is queried according to the information; if the geographical location information is reported, the WLAN near the location is queried. According to the carrier configuration, the WLAN is prioritized according to the algorithm or according to the priority (Algorithm 1, according to the WLAN priority of the user accessing the Cell is higher than the WLAN of the adjacent cell. Algorithm 2, if the WLAN has payment information, according to the access Whether the WLAN needs to pay to prioritize. Algorithm 3, if the WLAN has load information, prioritize according to the load information. The algorithm reports the location of the UE and the latitude, longitude and altitude of the WLAN. The four algorithms are configurable, that is, available. An algorithm can also be used in a variety of ways. Which algorithm is preferred and configurable when using multiple algorithms. It should be noted that the priority algorithm includes, but is not limited to, the above four algorithms. Step S810, packet 4: ANDSF pair Confirmation of UE status, response packet 3, and discovery information at the same time (Discovery

Information) The managed object (Managed Object, MO for short) replies the associated WLAN list to the UE; the ANDSF sends the packet 4 to the UE, including a status message (response to SyncHdr), and a replacement replace command (delivery option) WLAN information list. The specific content of WLAN information includes SSID and BSSID, and WLAN local information, WLAN geographical location, priority, 3GPP associated cell); Step S812, the UE saves relevant WLAN location information, and selects the accessed WLAN according to its own configuration, signal strength, and the like. Or the 3GPP network; Step S814, packet 3: UE response, the UE sends the packet 3 to the ANDSF, including two statuses (one reply to SyncHdr, one reply to the replace message in the packet 4); Step S816, packet 4: The ANDSF closes the session and sends a packet 4 to the UE with only one status message (reply to SyncHdr), terminating the session. In this embodiment, the specific task is processed by the first request. In fact, the UE requests the specific task from the ANDSF (for example, the UE acquires nearby WLAN information) may not be placed in the packet 1. As in the embodiment shown in Fig. 14, steps S1408-S1420 in Fig. 14 are the same as steps S804-S816 in Fig. 8. There may be other steps between steps S1402-S1404 (for example, the steps of the UE acquiring routing policy information from the ANDSF). The UE requests a specific task from the ANDSF (for example, the UE acquires nearby WLAN information) and puts the packet 3 in step S1406. Embodiment 6 This embodiment provides another WLAN discovery and selection method in PULL mode. In this embodiment, as shown in FIG. 9, the UE has accessed the mobile core network through the 3GPP or Non-3GPP, and the UE is ready to initiate the data service or the 3GPP location information change during the data service initiation, as shown in FIG. Steps: Step S902, Packet 1: The UE initializes to the ANDSF. The UE initializes to the ANDSF; the UE sends the packet 1 to the ANDSF, including an Alert command (the purpose is to request the server to initiate a session), a Generic Alert (the UE tells the ANDSF to perform specific tasks, such as obtaining WLAN information near the UE), and a Replace command (reporting) UE device information). In order to report the UE location information, we have extended the device information by adding UE_Location to Devlnfo. Steps S904 to S912 are the same as steps S808 to S816 in the fifth embodiment. In this embodiment, the specific task is processed by the first request. In fact, the UE requests specific tasks from the ANDSF (for example, the UE acquires nearby WLAN information) and may be placed in other packets. Embodiment 7 This embodiment provides a WLAN discovery and selection method in PUSH mode. In this embodiment, when the WLAN topology associated with the Cell in the ANDSF is changed, as shown in FIG. 10, the following steps are performed: Step S1002, packet 0: The ANDSF sends a notification message to the UE, and the WLAN topology changes; Step S1004 - Step S1018 is the same as Step S802 - Step S816 in Embodiment 5. In this embodiment, the specific task is processed by the first request. In fact, the UE requests specific tasks from the ANDSF (for example, the UE acquires nearby WLAN information) and may be placed in other packets. Embodiment 8 This embodiment provides a WLAN discovery and selection method in a PUSH mode. In this embodiment, when the WLAN topology associated with the Cell in the ANDSF is changed, as shown in FIG. 11, the following steps are performed: Step S1102, Packet 0: The ANDSF sends a notification message to the UE, and the WLAN topology changes; Step S Step 1 - Step S1114 is the same as Step S902 to Step S912 in Embodiment 5. In this embodiment, the specific task is processed by the first request. In fact, the UE requests specific tasks from the ANDSF (for example, the UE acquires nearby WLAN information) and may be placed in other packets. Embodiment 9 This embodiment provides a method for statically configuring WLAN location information (corresponding to WLAN access information in the above embodiment). The geographic location of the WLAN (including latitude/longitude/altitude) information, the geographic information of the city, the priority of the WLAN, the 3GPP associated cell information, and the operator user authentication mode are statically configured through the ANDSF network element backend database. Embodiment 10 This embodiment provides a method for WLAN to actively report location information (corresponding to WLAN access information in the foregoing embodiment). In this embodiment, the geographic location (latitude and longitude/altitude) information of the WLAN, the geographic information of the city, the priority of the WLAN, the 3GPP associated cell information, the operator user authentication mode, and the like are actively reported by the WLAN to the ANDSF. As shown in FIG. 12, the specific steps are as follows: Step S1202: The WLAN reports its own location information to the advertisement server; Step S1204: The advertisement server reports the location information of the WLAN to the ANDSF; Step S1206: The ANDSF saves the location information of the WLAN; Step S1208 - Step S1210: The ANDSF returns a successful response to the WLAN.

Embodiment 11 In this embodiment, the advertisement server triggers the WLAN to actively report the location information. The geographic location (latitude and longitude/altitude) information of the WLAN, the geographic information of the city, the priority of the WLAN, the 3GPP associated cell information, the operator user authentication mode, and the like are triggered by the advertisement server, and the WLAN is reported to the ANDSF. As shown in FIG. 13, the specific steps are as follows: Step S1302: The advertisement server notifies the WLAN to report the location information; Step S1304: The WLAN reports its location information to the advertisement server; Step S1306: The advertisement server reports the location information of the WLAN to the ANDSF; Step S1308 : ANDSF saves the location information of the WLAN; Step S1310 - Step S1312: The ANDSF returns a successful response to the WLAN. Embodiment 12 In this embodiment, the ANDSF server actively acquires location information of the WLAN. The ANDSF server triggers the advertisement server to request the WLAN in the advertisement server to report its geographical location information, city geographic information, WLAN priority, 3GPP associated cell information, carrier user authentication mode, and the like. It can be seen that the foregoing embodiments of the present invention achieve the following beneficial effects: The 3GPP process is extended, and the DM protocol can be used to indicate that the UE obtains an access network discovery and selection process; different carrier-supported authentication methods Differently, the terminal obtains the authentication mode, selects the WLAN supported by the UE, and does not need to try, which greatly improves the performance of the terminal, saves power and saves time, and the user experience is good; when the UE obtains multiple WLANs, selects a connection with a high priority. When the UE reports large location information (such as LAI/TAI), the UE sends all the WLAN information under the LAI/TAI, and at this time, with the 3GPP associated cell information, the UE can The information is precisely positioned to select the appropriate WLAN, and the user experience is good. In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments. In another embodiment, a storage medium is provided, the software being stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A WLAN access processing method, including:

The access network discovery and selection function ANDSF entity receives the location information reported by the user equipment UE; the ANDSF entity sends the wireless local area network WLAN access information to the UE according to the received location information, where the WLAN access information Used to indicate the UE's access policy to the WLAN network.

2. The method of claim 1, wherein the WLAN access information comprises at least one of the following information -

WLAN location information; location name information of the administrative area where the WLAN is located; WLAN priority information; authentication mode information supported by the WLAN operator; 3rd generation partner plan of the WLAN belongs to the 3GPP associated cell information.

The method according to claim 1, wherein the ANDSF entity sends the WLAN access information to the UE according to the received location information, including:

And the ANDSF entity sends an ANDSF management object to the UE according to the received location information, where the WLAN access information is carried in the ANDSF management object.

The method according to claim 1, wherein before the AND SF entity receives the location information reported by the UE, the method includes:

The ANDSF entity requests the UE to report the location information in response to the initialization message reported by the UE, where the initialization message carries a command to request the WLAN access information from the ANDSF entity.

The method according to claim 4, wherein the ANDSF initialization message is an OMA-DM protocol message.

The method according to claim 1, wherein the receiving, by the ANDSF entity, the location information reported by the UE includes:

The ANDSF entity receives the initialization message reported by the UE, where the specified field in the initialization message carries the location information of the UE.

The method according to claim 6, wherein the receiving, by the ANDSF entity, the initialization message reported by the UE includes:

The ANDSF entity receives the Open Mobile Alliance Device Management OMA-DM protocol message reported by the UE, and the device information Devlnfo in the OMA-DM protocol message carries the location information of the UE.

The method according to claim 1, wherein, before the ANDSF entity receives the location information reported by the UE, the method includes:

The ANDSF entity receives an initialization message reported by the UE;

The ANDSF entity sends a response message of the initialization message to the UE; the ANDSF entity receives a request message sent by the UE after receiving the response message, where the request message is used to request a WLAN from an ANDSF entity. Access information.

The method according to any one of claims 4-8, wherein before the ANDSF entity receives the location information reported by the UE, the method further includes:

When the WLAN access information changes, the ANDSF entity sends a notification message to the UE.

The method according to any one of claims 1 to 8, wherein the WLAN access information is obtained by one of the following methods:

Configuring the WLAN access information in the ANDSF entity in advance;

The WLAN actively reports the WLAN access information to the ANDSF entity via an advertisement server;

The WLAN directly reports the WLAN access information to the ANDSF entity, triggered by the trigger message sent by the advertisement server;

The ANDSF entity actively requests the advertisement server to report the WLAN access information to the WLAN.

11. A method for accessing a WLAN, comprising:

The user equipment UE receives the WLAN access information of the WLAN from the access network discovery and selection function, and the WLAN access information is used to indicate the access policy of the UE to the WLAN network.

The UE accesses the WLAN indicated by the access policy.

The method according to claim 11, wherein the WLAN access information comprises at least one of the following information:

An WLAN access processing device, located in an access network discovery and selection function ANDSF entity, comprising: a receiving module, configured to receive location information reported by the user equipment UE;

The sending module is configured to send the wireless local area network WLAN access information to the UE according to the received location information, where the WLAN access information is used to indicate the UE access policy to the WLAN network.

The device according to claim 13, wherein the sending module is configured to send the WLAN access information to the UE when the WLAN access information includes at least one of the following information:

An WLAN access device, located in the user equipment UE, includes:

The receiving module is configured to receive the WLAN access information sent by the ANDSF entity of the access network discovery and selection function, where the WLAN access information is used to indicate the access policy of the UE to the WLAN network; And setting to access the WLAN indicated by the access policy.