WO2012149797A1

WO2012149797A1 - Method and device for acquiring wireless local area network information

Info

Publication number: WO2012149797A1
Application number: PCT/CN2011/080544
Authority: WO
Inventors: 王珊珊
Original assignee: 华为技术有限公司
Priority date: 2011-10-08
Filing date: 2011-10-08
Publication date: 2012-11-08
Also published as: CN102440045A

Abstract

The present invention relates to the field of communications, and relates specifically to a method and device for acquiring wireless local area network information. In the method provided in the present invention for acquiring the wireless local area network information, on the basis of current location information of a user equipment, a network element of a mobile network determines the wireless local area network information corresponding to the current location of the user equipment, and transmits to the user equipment the wireless local area information corresponding to the current location of the user equipment. Employment of the method provided in the present invention allows the user equipment to acquire timely the wireless local area network information corresponding to the location where the user equipment is at.

Description

A method for obtaining wireless local area network information

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for acquiring wireless local area network information.

Background technique

With the development of communication technologies, various new broadband wireless access technologies are emerging. to ensure that

3GPP (The 3rd Generation Partnership Project) has long-term competitiveness in the future. 3GPP proposed the LTE (Long Term Evolution) plan on the wireless side and SAE (System Architecture) on the network side. Evolution, System Architecture Evolution) Planning. Figure 1 is a current wireless evolution network architecture diagram.

As shown in FIG. 1, the MME (Mobility Management Entity) and the SGSN (Serving GPRS Support Node) are mobile management network elements, which are responsible for control plane mobility management, including user context and mobility status. Management, user temporary identity assignment and security functions; SGW (Serving Gateway) is responsible for paging for downlink data, managing IP bearer parameters and intra-network routes in idle state; PGW (PDN Gateway, grouping) The domain data network gateway is responsible for the allocation of the IP address of the UE (User Equipment).

As shown in Figure 1, the wireless access part of the 2G network is GERAN (GSM EDGE Radio Access Network, GSM/EDGE Radio Access Network), BTS (Base Transceiver Station), and Base Station Controller (BSC). Controller); the wireless access part of the 3G network is UTRAN (Universal Mobile Telecommunication System Territorial Radio Access Network), by RNC (Radio Network Controller, Radio Network Controller) and NodeB (Node B); The radio access part of the LTE network is E-UTRAN (Evolved UTRAN, Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network), evolved by eNodeB (evolved NodeB, evolved) Node B) constitutes.

With the development of mobile technology, the number of mobile network users has soared, resulting in heavy load on the mobile network and network congestion. As a low-cost mobile broadband access method, WLAN (Wireless Local Area Network) has become the preferred shunt technology. The convergence of WLAN networks and mobile networks is becoming a commonly adopted network construction model. When a multimode UE having both 3GPP access capability and WLAN access capability performs 3GPP access, since the UE does not open the WLAN switch, it does not know that the current location has a WLAN network, and thus cannot be effectively offloaded.

In order to reduce the delay of the selection process when the multimode UE accesses the Wi-Fi (Wireless Fidelity) network, the SAE network defines the Access Network Discovery and Selection Function (ANDS) entity. . In the standard defined ANDSF mechanism, the UE provides the current location information of the UE to the access network discovery selection function entity, and the access network discovery selection function entity returns the wireless local area network information corresponding to the location. 2 is a schematic diagram of a process in which a UE accesses a trusted access method by using Wi-Fi when the ANDSF mechanism is used, where

Step S201: The UE accesses the network to obtain an IP address.

Step S202: The UE establishes a security association with the access network discovery selection function entity.

Step S203: Step S204: The UE acquires wireless local area network information corresponding to the current location. Step S205: The UE determines whether to initiate Wi-Fi access or handover according to the policy.

Through the analysis of the prior art, the inventor believes that the prior art has at least the following problems: The ANDSF mechanism in the prior art requires that all the correspondence between the WLAN and its location be preset to provide suitable WLAN information for the UE. In actual deployment, the WLAN is dynamically changing, and it is possible to increase, decrease, or replace, and the correspondence between the WLAN and its location changes accordingly. The prior art does not provide an effective mechanism for the user equipment to be obtained in time. Get the latest WLAN information corresponding to its location.

Summary of the invention

The embodiment of the invention provides a method and a device for acquiring wireless local area network information, so that the user equipment can obtain the wireless local area network information corresponding to the location in time.

A method for obtaining wireless local area network information is provided by the embodiment of the present invention. The method includes: determining, by the network element of the mobile network, the wireless local area network information corresponding to the current location of the user equipment according to the current location information of the user equipment;

The network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment. A network element of a mobile network provided by the embodiment of the present invention includes:

a determining unit, configured to determine, according to current location information of the user equipment, wireless local area network information corresponding to the current location of the user equipment;

And a sending unit, configured to send the wireless local area network information corresponding to the current location of the user equipment to the user equipment after the determining unit determines the wireless local area network information corresponding to the current location of the user equipment.

A user equipment provided by the embodiment of the present invention includes:

a location information providing unit, configured to provide a current location information of the user equipment to the network element of the mobile network

a receiving unit, configured to receive wireless local area network information corresponding to a current location of the user equipment that is sent by a network element of the mobile network, where the network element of the mobile network is sent according to the user equipment sent by the location information providing unit The current location information determines the wireless local area network information corresponding to the current location of the user equipment.

The method for acquiring wireless local area network information, the network element of the mobile network, and the user equipment provided by the embodiment of the present invention, the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment, so that the user equipment can Get the WLAN corresponding to its location in time Information.

DRAWINGS

1 is a current wireless evolution network architecture diagram;

2 is a schematic diagram of a process in which a UE accesses a trusted access method using Wi-Fi when the ANDSF mechanism is used;

3 is a schematic diagram of a method for obtaining wireless local area network information according to an embodiment of the present invention; FIG. 4 is a flowchart of an implementation of a second embodiment of a method according to an embodiment of the present invention;

FIG. 5 is a flowchart of implementing Embodiment 3 of a method according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of an implementation of Embodiment 4 of a method according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of an implementation manner of Embodiment 5 of a method according to an embodiment of the present disclosure;

FIG. 8 is a flowchart of an implementation manner of Embodiment 6 of a method according to an embodiment of the present disclosure;

FIG. 9 is a network element of a mobile network according to an embodiment of the present invention;

FIG. 10 is a user equipment according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.

As shown in FIG. 3, a method for obtaining wireless local area network information according to an embodiment of the present invention includes:

Step S301: The network element of the mobile network determines the wireless local area network information corresponding to the current location of the user equipment according to the current location information of the user equipment.

The network element of the mobile network can obtain the wireless local area network information corresponding to the current location of the user equipment in the following manner: the network element of the mobile network is pre-configured with each wireless local area network within its jurisdiction and the wireless local area network a mapping relationship between the location information, the network element of the mobile network searching for the mapping relationship according to the current location information of the user equipment, and obtaining the current The location of the corresponding wireless local area network information.

Certainly, those skilled in the art can understand that the network element of the mobile network can obtain the wireless local area network information corresponding to the current location of the user equipment by other means, for example, the network element of the mobile network is configured with the wireless local area network and The network device that is in the mapping relationship of the location information sends a request, where the request carries the current location information of the user equipment, so that the network device sends the wireless local area network information corresponding to the current location of the user equipment to the network element of the mobile network, where The network device may include, but is not limited to: an eNodeB, an MME, an SGW, a PGW, an RNC, a BSC, an SGSN, an ANDSF, or various gateways.

The network element of the mobile network in the embodiment of the present invention may include, but is not limited to, any one of the following: ΜΜΕ, SGW, PGW, eNodeB, RNC, BSC, SGSN.

Step 302: The network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

The network element of the mobile network sends the WLAN information corresponding to the current location of the user equipment to the user equipment, including but not limited to any of the following methods:

The first mode is a pull model: after receiving the request message sent by the user equipment, the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment as a response.

In the second mode, the push mode (push modd): the network element of the mobile network actively pushes the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

The method for obtaining the wireless local area network information is provided by the embodiment of the present invention, and the wireless local area network information corresponding to the current location of the user equipment is sent to the user equipment by the network element of the mobile network, so that the user equipment can obtain the wireless corresponding to the current location of the user equipment in time. The local area network information, in addition, the mapping relationship between the WLANs in the jurisdiction and the location information of the WLANs is pre-configured in the network element of the mobile network, so that the mapping relationship is distributed in the network of the mobile network. In the element, the configuration of the mapping relationship is centralized, and secondly, the network element of the mobile network can be pulled by a model or a push model The user equipment sends the wireless local area network information corresponding to the location of the user equipment, so that the manner of transmitting the wireless local area network information corresponding to the location of the user equipment is more flexible. As shown in FIG. 4, it is a flowchart of the implementation of the second embodiment of the method provided by the embodiment of the present invention. In this embodiment, the network element of the mobile network is the SGW, and the embodiment includes:

S401: The UE sends an Attach Request or a PDN Connction Setup Request message to the MME, where the attach request or the PDN connection creation request carries the current location information of the UE.

Optionally, the attach request or PDN connection creation request may carry a WLAN Capability of the UE;

S402: The MME sends a Create Session Request message to the SGW, where the Create Session Request message carries the current location information of the UE.

Optionally, the create session request message carries a wireless local area network access capability of the UE;

S403: The SGW sends a create session request message to the PGW.

S404: The PGW allocates an IP address to the UE.

The PGW sends a Create Session Response message to the SGW;

S405: The SGW determines, according to the current location information of the UE, the WLAN information corresponding to the current location of the UE, where the WLAN information includes a WLAN service set identifier (Service Set IDentification, a device name: SSID) or a WLAN basic month. Base Service Set IDentification (tube name: BSSID);

The SGW can obtain the WLAN information corresponding to the current location of the UE in the following manner: The SGW pre-configures a mapping relationship between each WLAN in its jurisdiction and the location information of each WLAN, where the SGW is based on the current UE. After the location information is searched for the mapping relationship, the wireless local area network information corresponding to the current location of the UE is obtained;

Certainly, those skilled in the art can understand that the SGW can obtain the wireless local area network information corresponding to the current location of the UE by other means, for example, the SGW is configured to the configured wireless local area network. The network device in the mapping relationship of the location information sends a request, where the request carries the current location information of the UE, so that the network device sends the wireless local area network information corresponding to the current location of the UE to the network element of the mobile network;

After determining the WLAN information corresponding to the current location of the UE, the SGW sends a create session response message to the MME, where the create session response message carries the WLAN corresponding to the current location of the UE.

S406: If the MME receives the attach request message sent by the UE, the MME sends an Initial Context Setup Request message and an Attach Accept message to the eNodeB; or

If the MME receives the PDN connection setup request message sent by the UE, the MME sends a bearer context setup request (Bearer Context Setup Request) message and a PDN Connection Setup Response message to the eNodeB;

Any one of the two types of messages sent to the eNodeB may carry the WLAN information corresponding to the current location of the UE, for example, the initialization context creation request message sent by the MME to the eNodeB when the MME receives the attach request message sent by the MME. And any one of the attach accept message may carry the wireless local area network information corresponding to the current location of the UE;

S407: The eNodeB sends a radio resource control to the UE (Radio Resource Control).

RRC) a configuration message, where the RRC connection configuration message carries WLAN information corresponding to the current location of the UE;

S408: The UE sends a radio resource control connection configuration to the eNodeB (RRC Connection)

Configuration Complete ) message;

S409: The eNodeB sends an initialization context creation response to the MME (Initial Context Setup

Response ) Message or Bearer Context Setup Response message, specifically:

If the eNodeB receives the initialization context creation request message sent by the MME and the attach accepting cancellation The eNodeB sends an initialization context creation response message to the MME; or

If the eNodeB receives the bearer context creation request message and the PDN connection creation response message sent by the MME, the eNodeB sends a context creation response message to the MME;

S410: The MME sends a Modify Session Request message to the SGW. S411: The MME receives the Modify Session Response message sent by the SGW, and completes the connection establishment process.

S412: The UE determines, according to the policy, whether to initiate Wi-Fi access.

It should be noted that this step S412 can be performed before, after or at the same time as step S409, and there is no sequence, but the Wi-Fi access can be completed only after the step S411 is performed.

In this embodiment, mappings between the wireless local area networks in the jurisdiction and the location information of the wireless local area networks may be pre-configured on the network elements (eg, PGW, MME, or eNodeB) of other mobile networks. And sending the WLAN information corresponding to the current location of the UE to the UE in the process of the connection creation, and the implementation process is similar to the process in this embodiment, and is not described here.

In this embodiment, the UE accesses the mobile network through the LTE access mode. For other access methods, such as GERAN or TURAN, each WLAN in the jurisdiction can be pre-configured on the SGSN, RNC or BSC. The mapping relationship between the location information of each wireless local area network is described, and the wireless local area network information corresponding to the current location of the UE is sent to the UE through a radio access bearer setup message during the connection creation process, and the implementation process and the implementation Similar to the example, here ^ again - narrative „

The second embodiment of the method provided by the embodiment of the present invention sends the WLAN information corresponding to the current location of the user equipment to the user equipment by using the SGW, so that the user equipment can obtain the WLAN information corresponding to the current location of the user equipment in time, and in the SGW. Pre-configuring the mapping relationship between the WLANs in the jurisdiction and the location information of the WLANs, so that the mapping relationship is stored in the SGW, and the configuration of the mapping relationship is centralized. Second, the SGW is directly in the SGW. Sending, in the connection establishment process, the wireless local area network information corresponding to the current location of the user equipment to the user equipment, The process of obtaining the wireless local area network information by the user equipment is simplified, and the real-time performance of the user equipment to obtain the wireless local area network information corresponding to the current location of the user equipment is improved, and the delay of the user equipment accessing the wireless local area network is reduced. As shown in FIG. 5, it is a flowchart of the implementation of the third embodiment of the method according to the embodiment of the present invention. In this embodiment, the network element of the mobile network is a PGW, and the embodiment includes:

S501: The UE sends an attach request message or a PDN connection creation request message to the MME. S502: The MME sends a create session request message to the SGW.

S503: The SGW sends a create session request message to the PGW.

S504: The PGW allocates an IP address to the UE, and sends a create session response message to the SGW. S505: The SGW sends a create session response message to the MME.

S506: If the MME receives the attach request message sent by the UE, the MME sends an initialization context creation request message and an attach accept message to the eNodeB; or

If the MME receives the PDN connection creation request message sent by the UE, the MME sends a bearer context creation request message and a PDN connection creation response message to the eNodeB;

S507: The eNodeB sends a radio resource control connection configuration message to the UE.

S508: The UE sends a radio resource control connection configuration completion message to the eNodeB.

S509: The eNodeB sends an initialization context creation response message to the MME or? The context-creating response message, specifically:

If the eNodeB receives the initialization context creation request message sent by the MME and the attach accept message, the eNodeB sends an initialization context creation response message to the MME; or

S510: The MME sends a modify session request message to the SGW.

S511: The MME receives the modify session response message sent by the SGW, and completes the connection establishment process. S512: The UE sends a WLAN information request message to the PGW, where the WLAN message is sent. The information request message carries the current location information of the UE;

Optionally, the WLAN information request message may carry the WLAN access capability of the UE;

It should be noted that, the step S512 can be performed before, after or simultaneously with the step S509, and there is no sequence, but only after the step S511 is executed, the wireless local area network information can be sent.

S513: The PGW determines, according to the current location information of the UE, the wireless local area network information corresponding to the current location of the UE, where the wireless local area network information includes a wireless local area network service set identifier or a wireless local area network basic service set identifier.

The PGW can obtain the WLAN information corresponding to the current location of the UE in the following manner: The PGW pre-configures the mapping relationship between the WLANs in its jurisdiction and the location information of the WLANs, where the PGW is based on the current UE. After the location information is searched for the mapping relationship, the wireless local area network information corresponding to the current location of the UE is obtained;

Certainly, those skilled in the art can understand that the PGW can obtain the WLAN information corresponding to the current location of the UE by other means, for example, the PGW sends a request to the network device that has configured the mapping relationship between the WLAN and the location information thereof. The request carries the current location information of the UE, so that the network device sends the wireless local area network information corresponding to the current location of the UE to the network element of the mobile network;

After determining the WLAN information corresponding to the current location of the UE, the PGW sends a wireless local area network information response message to the UE, where the WLAN information response message carries the wireless local area network information corresponding to the current location of the UE;

S514: The UE determines, according to the policy, whether to initiate Wi-Fi access.

In this embodiment, mappings between the wireless local area networks in the jurisdiction and the location information of the wireless local area networks may be pre-configured on the network elements (eg, SGW, MME, or eNodeB) of other mobile networks. And sending a WLAN information response message to the user equipment according to the WLAN information request message sent by the user equipment, and implementing the process and the process class of the embodiment Like, no longer here - narrative.

In this embodiment, the UE accesses the mobile network through the LTE access mode. For other access methods, such as GERAN or TURAN, each WLAN in the jurisdiction can be pre-configured on the SGSN, RNC or BSC. The mapping relationship between the location information of each WLAN is described, and the WLAN information response message is sent to the user equipment according to the WLAN information request message sent by the user equipment, and the implementation process is similar to that in this embodiment. - Narrative.

The third embodiment of the method provided by the embodiment of the present invention, after the connection establishment is completed, requests the PGW to request the wireless local area network information corresponding to the current location of the user equipment, so that the user equipment can obtain the wireless local area network information corresponding to the current location of the user equipment in time. In addition, the mapping relationship between each WLAN in the jurisdiction and the location information of each WLAN is pre-configured in the PGW, so that the mapping relationship is stored in the PGW, and the mapping relationship is configured. As shown in FIG. 6, the flowchart of the implementation of the fourth embodiment of the method is provided in the embodiment of the present invention. In this embodiment, the network element of the mobile network is an MME, and the embodiment includes:

S601: The UE sends an attach request message or a PDN connection creation request message to the MME, where the attach request or the PDN connection creation request carries the current location information of the UE.

S602: The MME sends a create session request message to the SGW.

S603: The SGW sends a create session request message to the PGW.

S604: The PGW allocates an IP address to the UE, and sends a create session response message to the SGW. S605: The SGW sends a create session response message to the MME.

S606: If the MME receives the attach request message sent by the UE, the MME sends an initialization context creation request message and an attach accept message to the eNodeB; or

S607: The eNodeB sends a radio resource control connection configuration message to the UE.

S608: The UE sends a radio resource control connection configuration completion message to the eNodeB. S609: The eNodeB sends an initialization context creation response message or a context creation response message to the MME, specifically:

S610: The MME sends a modify session request message to the SGW.

S611: The MME receives the modify session response message sent by the SGW, and completes the connection establishment process.

S612: The MME determines, according to the current location information of the UE, the wireless local area network information corresponding to the current location of the UE, where the WLAN local area network information includes a wireless local area network service set identifier or a wireless local area network basic service set identifier.

The MME can obtain the WLAN information corresponding to the current location of the UE in the following manner: The MME pre-configures the mapping relationship between the WLANs in its jurisdiction and the location information of the WLANs, where the MME is based on the current UE. After the location information is searched for the mapping relationship, the wireless local area network information corresponding to the current location of the UE is obtained;

Certainly, those skilled in the art may understand that the MME may obtain the WLAN information corresponding to the current location of the UE by other means, for example, the MME sends a request to the network device that has configured the mapping relationship between the WLAN and the location information thereof. The request carries the current location information of the UE, so that the network device sends the wireless local area network information corresponding to the current location of the UE to the network element of the mobile network;

After determining the WLAN information corresponding to the current location of the UE, the MME actively sends the WLAN information corresponding to the current location of the UE to the UE.

S613: The UE determines, according to the policy, whether to initiate Wi-Fi access.

In this embodiment, each wireless local area network within the jurisdiction and the wireless local area network may be pre-configured on network elements (eg, SGW, PGW, or eNodeB) of other mobile networks. After the connection is established, the WLAN information corresponding to the current location of the UE is actively pushed to the UE. The implementation process is similar to the process in this embodiment, and is not described here.

In this embodiment, the UE accesses the mobile network through the LTE access mode. For other access methods, such as GERAN or TURAN, each WLAN in the jurisdiction can be pre-configured on the SGSN, RNC or BSC. The mapping relationship between the location information of each WLAN is described, and after the connection is established, the WLAN information corresponding to the current location of the UE is actively pushed to the UE, and the implementation process is similar to that in this embodiment. .

In the fourth embodiment of the method provided by the embodiment of the present invention, the MME actively pushes the WLAN information corresponding to the current location of the user equipment to the user equipment, so that the user equipment can obtain the WLAN information corresponding to the current location of the user equipment in time, and improve the user equipment. Obtaining the real-time performance of the wireless local area network information corresponding to the current location of the user equipment, reducing the delay of the user equipment accessing the wireless local area network, and pre-configuring each wireless local area network within the jurisdiction and the wireless local area network in the MME The mapping relationship between the location information of the network is such that the mapping relationship distribution is stored in the MME, and the configuration of the mapping relationship is compressed. As shown in FIG. 7, a flowchart for implementing the fifth embodiment of the method is provided in the embodiment of the present invention. In this embodiment, the network element of the mobile network is the target network side MME, and the network in the embodiment of the present invention is called before the UE moves. For the source network side, the network where the UE is moved is referred to as the target network side. In this embodiment, the scenario in which the location of the UE changes after the UE accesses the network, specifically, the UE triggers the handover (Handover) process. For example, this embodiment includes:

S701: Handover Preparation P, the target network side MME acquires the location information of the UE after the location change, and the location information after the location change of the UE refers to the location information after the UE switches to the target network side;

S702: The target network side MME determines, according to the changed location information of the UE, the WLAN information corresponding to the changed location of the UE, where the WLAN information includes the WLAN SSID. Or WLAN BSSID;

The target network side MME can obtain the WLAN information corresponding to the location change of the UE in the following manner: The target network side MME pre-configures the mapping relationship between each WLAN in its jurisdiction and the location information of each WLAN. The target network side MME searches for the mapping relationship according to the changed location information of the UE, and obtains the wireless local area network information corresponding to the changed location of the UE;

Certainly, those skilled in the art can understand that the target network side MME can also obtain the corresponding wireless local area network information after the UE location change by other means, for example, the mapping relationship between the target network side MME and the configured wireless local area network and its location information. The network device sends a request, where the request carries the location information of the changed location of the UE, so that the network device sends the wireless local area network information corresponding to the changed location of the UE to the network element of the mobile network;

After the target MME determines the WLAN information corresponding to the location change of the UE, the MME sends a Forward Relocation Request message to the source network side MME, where the Forward Redirection Request message carries the WLAN corresponding to the UE after the location change. Network information;

S703: The source network side MME sends a handover command (Handover Command) message to the source network side eNodeB, where the handover command message carries the wireless local area network information corresponding to the UE location change.

S704: The source network side eNodeB forwards a handover command message to the UE, where the handover command message is sent by the source network side MME to the source network side eNodeB.

S705: Handover execution P section;

S706: The UE determines, according to the policy, whether to initiate a Wi-Fi handover.

It should be noted that this step S706 can be performed before, after or at the same time as step S705, and there is no sequence, but the Wi-Fi switching can be completed only after the step S705 is performed.

The implementation process when the UE performs the location update process is similar to the foregoing process, except that the target network side MME sends a location update response to the UE, where the location update response carries the UE location change. Corresponding WLAN information, wherein the location update process includes a TAU process or a RAU process.

In this embodiment, each of the wireless local area networks within the jurisdiction of the network element (for example, the target network side PGW, the target network side SGW, or the target network side eNodeB) of the other mobile network may be pre-configured with the foregoing The mapping relationship between the location information of the WLAN and the WLAN information corresponding to the location change of the UE is sent to the UE by using the forwarding redirection request message or the location update response message during the handover or location update process. The flow of the embodiment is similar, and will be described again here.

In this embodiment, the UE accesses the mobile network through the LTE access mode. For other access modes, such as GERAN or UTRAN, the jurisdiction may be pre-configured on the target network side SGSN, the target network side RNC, or the target network side BSC. a mapping relationship between the WLANs and the location information of the WLANs, and the WLAN information corresponding to the location change of the UE is sent to the UE in the process of the handover or the location update, and the implementation process is the same as the embodiment. Similar, I will not repeat them here.

In the fifth embodiment of the method provided by the embodiment of the present invention, the mapping relationship between the WLANs in the MME and the location information of the WLANs is pre-configured in the MME of the target network, so that the mapping relationship is saved. In the target network side MME, the configuration of the mapping relationship is collapsed. In addition, when the location of the user equipment changes, the target network side MME directly sends the user equipment location change to the user equipment in the handover process or the location update process. The corresponding wireless local area network information ensures that the wireless local area network information on the user equipment can be updated in time, reducing the delay of the user equipment switching the wireless local area network. As shown in FIG. 8, the flowchart of the implementation of the sixth embodiment of the method is provided in the embodiment of the present invention. In this embodiment, the network element of the mobile network is the target network side MME, and the embodiment is directed to the UE accessing the network. For example, the scenario in which the location of the UE is changed, specifically, the UE triggers a handover (Handover) process, and the embodiment includes:

S801: Handover Preparation P segment, the target network side MME acquires the UE Position information after the location change, the location information after the location change of the UE refers to location information after the UE switches to the target network side;

S802: The target network side MME sends a forwarding redirection request message to the source network side MME.

S803: The source network side MME sends a handover command message to the source network side eNodeB.

S804: The source network side eNodeB forwards a handover command message to the UE, where the handover command message is sent by the source network side MME to the source network side eNodeB.

S805: switching the execution phase;

S806: The target network side MME determines, according to the changed location information of the UE, the WLAN information corresponding to the location change of the UE, where the WLAN information includes a WLAN SSID or a WLAN BSSID;

After the MME determines the WLAN information corresponding to the changed location of the UE, the MME actively pushes the WLAN corresponding to the UE after the location change of the UE;

S807: The UE determines, according to the policy, whether to initiate a Wi-Fi handover.

The implementation process of the location update process of the UE is similar to the foregoing process, and is not described here. In this embodiment, network elements of other mobile networks (for example, a target network side PGW, A mapping relationship between each WLAN in the jurisdiction and the location information of each WLAN is pre-configured on the target network side SGW or the target network side eNodeB, and is actively sent to the UE after the handover or location update is performed. The corresponding WLAN information after the location change of the UE is similar to the process of this embodiment, and is not described here.

In this embodiment, the UE accesses the mobile network through the LTE access mode. For other access modes, such as GERAN or UTRAN, the jurisdiction may be pre-configured on the target network side SGSN, the target network side RNC, or the target network side BSC. a mapping relationship between each WLAN and the location information of each WLAN, and after the handover or location update is performed, actively send the WLAN corresponding local area network information to the UE after the handover is performed, and the implementation process is The similarities of the embodiments are not described herein.

Embodiment 6 of the method provided by the embodiment of the present invention, by pre-configuring a mapping relationship between each WLAN in the jurisdiction and the location information of each WLAN in the target network side MME, so that the mapping relationship is saved. In the target network side MME, the configuration of the mapping relationship is encapsulated. In addition, when the location of the user equipment changes, the target network side MME directly pushes the wireless local area network information corresponding to the location change of the user equipment to the user equipment, thereby ensuring the user. The wireless local area network information on the device can be updated in time, which reduces the delay for the user equipment to switch the wireless local area network. As shown in FIG. 9, a network element of a mobile network according to an embodiment of the present invention includes: a determining unit 901, configured to determine, according to current location information of a user equipment, information about a wireless local area network corresponding to a current location of the user equipment;

The wireless local area network information includes a wireless local area network service set identifier or a wireless local area network basic monthly service set identifier;

The sending unit 902 is configured to send the wireless local area network information corresponding to the current location of the user equipment to the user equipment after the determining unit 901 determines the wireless local area network information corresponding to the current location of the user equipment.

The network element of the mobile network further includes:

a configuration unit, configured to pre-configure each wireless local area network within the jurisdiction of the network element of the mobile network The mapping relationship between the network and the location information of the WLAN is performed, so that the determining unit 901 obtains the WLAN information corresponding to the current location of the user equipment according to the mapping relationship pre-configured by the configuration unit.

In this embodiment, the sending unit 902 further includes:

a first sending unit, configured to send, by using a radio access bearer creation message, the wireless local area network information corresponding to the current location of the user equipment in the connection establishment process; or

a second sending unit, configured to: after receiving the wireless local area network information request message sent by the user equipment, send a wireless local area network corresponding to the current location of the user equipment to the user equipment by using the wireless local area network information response message Information, wherein the WLAN information request message carries current location information of the user equipment; or

The third sending unit is configured to: after the connection establishment is completed, actively push the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

In this embodiment, the determining unit 901 is further configured to determine, according to the changed location information of the user equipment, the corresponding wireless local area network information after the location change of the user equipment, when the location of the user equipment changes;

Shellfish ¹ J, further transmission unit 902 for transmitting wireless local area network user equipment location information corresponding to the changed user equipment;

The sending unit 902 further includes:

a fourth sending unit, configured to send, by using a forwarding redirect request message or a location update response message, a wireless local area network information corresponding to the location change of the user equipment to the user equipment during the handover or the location update process; or

The fifth sending unit is configured to actively push the wireless local area network information corresponding to the current location of the user equipment to the user equipment after the handover or the location update is performed.

A network element of a mobile network provided by the embodiment of the present invention, by sending a user equipment to a user equipment The wireless local area network information corresponding to the location enables the user equipment to obtain the wireless local area network information corresponding to the current location of the user equipment in time. In addition, each wireless local area network within its jurisdiction is pre-configured in the network element of the mobile network. The mapping relationship between the location information of the WLAN is such that the mapping relationship is stored in the network element of the mobile network, and the mapping relationship is configured. Secondly, the network element of the mobile network can be sent to the user equipment in multiple manners. The WLAN information corresponding to the location of the user equipment makes the manner in which the user equipment obtains the WLAN information corresponding to the location of the user equipment is more flexible. Again, when the location of the user equipment changes, the network element of the mobile network is switched or updated. During the process, the WLAN information corresponding to the location change of the user equipment is sent to the user equipment, and the process of obtaining the WLAN information corresponding to the location change of the user equipment is ensured, thereby ensuring that the WLAN information on the user equipment can be timely Update, Less delay the user equipment is switched wireless local area network. As shown in FIG. 10, a user equipment according to an embodiment of the present invention includes:

The location information providing unit 1001 is configured to provide the network element of the mobile network with current location information of the user equipment.

The receiving unit 1002 is configured to receive the wireless local area network information corresponding to the current location of the user equipment that is sent by the network element of the mobile network, where the network element of the mobile network determines the current location information of the user equipment sent by the location information providing unit 1001. The wireless local area network information corresponding to the current location of the user equipment.

In this embodiment, the user equipment further includes:

The access determining unit is configured to determine, according to the policy, whether to access the wireless local area network associated with the wireless local area network information corresponding to the current location of the user equipment received by the receiving unit 1002.

In this embodiment, the location information providing unit 1001 is further configured to provide the network element of the mobile network with location information after the location change of the user equipment;

Shellfish ¹ J, the receiving unit 1002 is further configured to WLAN information corresponding to the user equipment after the network element receives location change of the mobile network in transmission; The user equipment further includes:

And a handover determining unit, configured to determine, according to the policy, whether to switch to a wireless local area network associated with the wireless local area network information corresponding to the changed location of the user equipment received by the receiving unit 1002.

The method for obtaining wireless local area network information, the network element of the mobile network, and the user equipment provided by the embodiment of the present invention, the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment, so that the user equipment can Obtaining wireless local area network information corresponding to the current location of the user equipment in time, and pre-configuring a mapping relationship between each wireless local area network in the jurisdiction and the location information of each wireless local area network in the network element of the mobile network, so that the The mapping relationship is stored in the network element of the mobile network, and the configuration of the mapping relationship is centralized. Secondly, the network element of the mobile network can send the WLAN corresponding to the current location of the user equipment to the user equipment in the process of establishing the connection. The information streamifies the flow of the user equipment to obtain the wireless local area network information, improves the real-time performance of the user equipment to obtain the wireless local area network information corresponding to the current location of the user equipment, reduces the delay of the user equipment accessing the wireless local area network, and again, moves The network element of the network can In the process of establishing the connection, the wireless local area network information corresponding to the current location of the user equipment is sent to the user equipment after the connection is established, so that the manner in which the user equipment obtains the wireless local area network information corresponding to the current location is more flexible. When the location of the user equipment changes, the network element of the mobile network actively pushes the corresponding wireless local area network information to the user equipment after the location change of the user equipment, so that the wireless local area network information on the user equipment can be updated in time, thereby reducing the user. The device switches the delay of the WLAN, and when the location of the user equipment changes, the network element of the mobile network may send the user to the user equipment after the handover or location update is performed, or after the handover or location update is performed. The corresponding wireless local area network information after the device location is changed, so that the user equipment obtains the corresponding wireless local area network information after the location change is more flexible.

In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of 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 method for obtaining wireless local area network information, the method comprising: determining, by the network element of the mobile network, the wireless local area network information corresponding to the current location of the user equipment according to the current location information of the user equipment;

The network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

The method according to claim 1, wherein the method further comprises: pre-configuring a mapping between each wireless local area network within the jurisdiction of the network element of the mobile network and the location information of each wireless local area network; Relationship

Shellfish ¹ J, network element of the mobile network based on the current location information of the user equipment, determines the wireless local area network information corresponding to the current location of the user equipment, comprising:

The network element of the mobile network searches for the mapping relationship according to the current location information of the user equipment, and obtains the wireless local area network information corresponding to the current location of the user equipment.

The method according to claim 1 or 2, wherein the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment, including: in the connection establishment process The network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment by creating a session response message or by using a radio access bearer creation message.

The method according to claim 1 or 2, wherein the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment, including: after the connection establishment is completed. After receiving the WLAN information request message sent by the user equipment, the network element of the mobile network sends the WLAN information corresponding to the current location of the user equipment to the user equipment by using a WLAN information response message. The wireless local area network information request message carries current location information of the user equipment.

The method according to claim 1 or 2, wherein the network element of the mobile network Sending, to the user equipment, the wireless local area network information corresponding to the current location of the user equipment, including: after the connection establishment is completed, the network element of the mobile network actively pushes the wireless corresponding to the current location of the user equipment to the user equipment Local area network information.

The method according to any one of claims 1-5, further comprising: if the location of the user equipment changes, the network element of the mobile network changes according to the location of the user equipment After the location information, determining the corresponding wireless local area network information after the location of the user equipment is changed;

The network element of the mobile network sends the wireless local area network information corresponding to the location change of the user equipment to the user equipment.

The method according to claim 6, wherein the network element of the mobile network sends, to the user equipment, the wireless local area network information corresponding to the location change of the user equipment, including: the network of the mobile network In the process of the handover or the location update, the WLAN information corresponding to the location change of the user equipment is sent to the user equipment by forwarding a redirect request message or a location update response message.

The method according to claim 6, wherein the network element of the mobile network sends, to the user equipment, the wireless local area network information corresponding to the location change of the user equipment, including: the network of the mobile network After the handover or the location update is performed, the MME automatically pushes the WLAN information corresponding to the current location of the user equipment to the user equipment.

The method according to any one of claims 1-5, wherein after the network element of the mobile network sends the wireless local area network information corresponding to the current location of the user equipment to the user equipment, Also includes:

The user equipment determines, according to the policy, whether to access a wireless local area network associated with the wireless local area network information corresponding to the current location of the user equipment.

The method according to any one of claims 6-8, wherein the network element of the mobile network sends the corresponding wireless office to the user equipment after the location change of the user equipment After the domain network information, it also includes:

The user equipment determines, according to the policy, whether to switch to a wireless local area network associated with the wireless local area information corresponding to the location change of the user equipment.

A network element of a mobile network, comprising:

The network element according to claim 11, further comprising:

a mapping unit, configured to pre-configure a mapping relationship between each WLAN in the jurisdiction of the network element and location information of each WLAN, so that the determining unit obtains a mapping relationship pre-configured according to the configuration unit. The wireless local area network information corresponding to the current location of the user equipment.

The network element according to claim 11 or 12, wherein the sending unit comprises: a first sending unit, configured to create a session response message or create a radio access bearer in the connection establishment process Sending, by the message, the wireless local area network information corresponding to the current location of the user equipment to the user equipment; or

a second sending unit, configured to: after receiving the WLAN information request message sent by the user equipment, send the current location of the user equipment to the user equipment by using a WLAN information response message Wireless local area network information, wherein the wireless local area network information request message carries current location information of the user equipment; or

And a third sending unit, configured to: after the connection establishment is completed, actively push the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

The network element according to claim 11 or 12 or 13, wherein the determining unit is further configured to: when the location of the user equipment changes, according to the location of the user equipment, The location information is used to determine the WLAN information corresponding to the location change of the user equipment. Then, the sending unit is further configured to send, to the user equipment, the WLAN information corresponding to the location change of the user equipment.

The network element according to claim 14, wherein the sending unit further comprises: a fourth sending unit, configured to forward a redirect request message or a location update response message during a handover or location update process, Transmitting, to the user equipment, the wireless local area network information corresponding to the location change of the user equipment; or

And a fifth sending unit, configured to: after the switching or the location update is performed, actively push the wireless local area network information corresponding to the current location of the user equipment to the user equipment.

16. A user equipment, comprising:

a location information providing unit, configured to provide, to a network element of the mobile network, a current location information receiving unit of the user equipment, configured to receive wireless local area network information corresponding to a current location of the user equipment that is sent by the network element of the mobile network, where The network element of the mobile network determines the wireless local area network information corresponding to the current location of the user equipment according to the current location information of the user equipment sent by the location information providing unit.

The user equipment according to claim 16, further comprising:

The access determining unit is configured to determine, according to the policy, whether to access a wireless local area network associated with the wireless local area network information corresponding to the current location of the user equipment received by the receiving unit.

The user equipment according to claim 16 or 17, wherein the location information providing unit is further configured to provide the network element of the mobile network with location information after the location change of the user equipment;

The receiving unit is further configured to receive the wireless local area network information corresponding to the location change of the user equipment that is sent by the network element of the mobile network, where the network element of the mobile network is based on the location Position information after the location change of the user equipment sent by the information providing unit, determining the user setting The corresponding wireless local area network information after the location change.

The user equipment according to claim 18, further comprising:

And a handover determining unit, configured to determine, according to the policy, whether to switch to a wireless local area network associated with the wireless local area network information corresponding to the location change of the user equipment received by the receiving unit.