WO2014008806A1

WO2014008806A1 - Method and device for determining wireless local area network neighboring user equipment

Info

Publication number: WO2014008806A1
Application number: PCT/CN2013/077645
Authority: WO
Inventors: 陈淑; 宗在峰; 梁爽
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-07-09
Filing date: 2013-06-21
Publication date: 2014-01-16
Also published as: CN103546926A

Abstract

Disclosed are a method and device for determining a wireless local area network (WLAN) neighboring user equipment (UE). The method comprises: a neighbor discovery server receiving a WLAN neighbor request message sent by a source UE, the WLAN neighbor request message carrying first UE attribute information of the source UE; the neighbor discovery server determining, according to the first UE attribute information and pre-stored second UE attribute information of one or more UEs, a neighboring UE of the source UE from a plurality of target UEs currently detected. Through the present invention, a neighbor discovery server provides, to a UE, available WLAN neighbor information or current geographical location information of the UE, so that the UE can use the information provided by the neighbor discovery server to select a proper or optimal WLAN neighbor and directly perform WLAN communication with the selected WLAN neighbor.

Description

The present invention relates to the field of communications, and in particular to a method and apparatus for determining a neighboring user equipment of a wireless local area network. 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 whole EPS system is divided into two parts: a radio access network and a core network. The radio access network is divided into a 3GPP access network and a non-3GPP access network. The 3GPP access network is composed of an Evolved NodeB (eNB), which is mainly responsible for receiving and receiving wireless signals, and communicating with the terminal through the air interface to manage radio resources, resource scheduling, and access control of the air interface. The core network includes a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Policy and Charging Rule Function (PCRF), and a service. Gateway (Serving Gateway, S-GW for short) and Packet Data Gateway (PDN Gateway, P-GW for short). Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of an Evolved Packet Core (EPC) for accessing an evolved 3GPP and non-3GPP access systems according to the related art. As shown in Figure 1, the EPS 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, non-access stratum signaling processing, and user mobility management context management; S-GW is The access gateway device connected to the 3GPP access network forwards data between the 3GPP access and the P-GW and buffers the data; the P-GW is the boundary between the EPS and the Packet Data Network (PDN). The gateway is responsible for PDN access and forwarding 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 and online credit. Control, Threshold Control, and Quality of Service (QoS for short). 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 needs to be connected to the P-GW through an evolved Packet Data Gateway (ePDG), and 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). In the Long Term Evolution (LTE) system, even if the locations between devices are very close, devices need to communicate communication data through the base station and the core network. The resources occupied by the base station and the core network are very large. . In order to improve the resource utilization rate and increase the capacity of the base station and the core network, the Proximity Services (ProSeimation Services, referred to as ProSe) function provides a direct communication technology between the devices. In the prior art, the ProSe function can implement LTE discovery and LTE communication under LTE coverage. 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. In the traditional WLAN system, even if the locations between the devices are very close, the communication data needs to be transmitted between the devices through the access point and the access controller, and the resource occupancy of the access point is very considerable. In order to increase the resource usage rate of the access point and increase the capacity of the access point, in the prior art, the devices supporting the Wi-Fi function may also be configured as a wireless ad hoc network (Ad hoc) mode to implement the Wi-Fi device. Direct communication between. In the prior art, Wi-Fi devices can also be implemented between devices supporting Wi-Fi Direct (Wi-Fi Direct) technology, and between devices supporting Wi-Fi Direct technology and traditional Wi-Fi technology. Direct communication. However, the prior art has the following problems: Most LTE/Wi-Fi terminals are still single-mode terminals, and can only work in one access mode, and generally choose to work in LTE mode, and only turn on Wi in specific scenarios. -Fi wireless switch. Even for dual-mode terminals that support LTE/Wi-Fi, users may turn off the Wi-Fi wireless switch based on power saving and other options, and choose to work in LTE mode. Thus, even if the user is already very close, it may not be possible to choose to configure the Ad hoc mode or use Wi-Fi Direct technology for WLAN direct communication. In view of the problem that the related art cannot notify the neighbor to open the Wi-Fi switch for direct WLAN communication, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION The present invention provides a method and apparatus for determining a wireless local area network neighbor user equipment to at least solve the above problems. According to an aspect of the present invention, a method for determining a WLAN neighboring user equipment is provided, including: a neighbor discovery server receiving a wireless local area network (WLAN) neighbor request message sent by a source user equipment (UE), where a WLAN neighbor request message is received Carrying the first UE attribute information of the source UE; the neighbor discovery server determines the source UE from the currently detected multiple target UEs according to the first UE attribute information and the second UE attribute information of the one or more UEs stored in advance Neighbor UE. Preferably, the second UE attribute information of one or more UEs is obtained by: performing, in each UE, querying surrounding devices by using a dynamic host configuration protocol (DHCP) manner or a domain name resolution server (DNS) manner, and querying After the neighbor discovery server, the neighbor discovery server receives the second UE attribute information reported by the UE through the first interface, where the second UE attribute information includes the WLAN capability, and the first interface adopts the Open Mobile Alliance Device Management (OMA DM) protocol; After the neighbor discovery server sends the neighbor request message to the UE with the Long Term Evolution (LTE) discovery capability, the second UE attribute information that is reported by the UE in the UE with the LTE discovery capability is received by the first interface, where the second UE attribute information includes WLAN capability, the first interface uses the Open Mobile Alliance Device Management (OMA DM) protocol. Preferably, the neighbor discovery server determines the neighbor UE of the source UE from the currently detected multiple target UEs according to the first UE attribute information and the second UE attribute information of the one or more UEs stored in advance, including: determining each Whether the third UE attribute information of the target UE belongs to the second UE attribute information; if the determination result is yes, continue to determine whether the third UE attribute information matches the first UE attribute information; In case, the target UE is determined as a neighbor UE of the source UE. Preferably, the first UE attribute information and the third UE attribute information each include: a WLAN capability; the first UE attribute information, the second UE attribute information, and the third UE attribute information each further include at least one of the following: a geographic location, a third a partner partnership program (3GPP) location, an International Mobile Subscriber Identity (IMSI), a Media Access Control (MAC) address, and a right to restrict discovery; the first UE attribute information further includes: WLAN neighbor information that the source UE wishes to discover The wireless local area network neighbor information that the source UE wants to discover may also be from the subscription information of the home subscriber server (HSS). Preferably, the WLAN capability indicates whether the UE supports WLAN. Preferably, the geographic location includes: longitude and latitude, wherein the longitude is used to store the longitude of the geographical location where the UE is currently located, and the latitude is used to store the latitude of the geographical location where the UE is currently located. Preferably, the 3GPP location comprises at least: a Public Land Mobile Network (PLMN), a Tracking Area Code (TAC), and an Evolved Global System for Mobile Communications Radio Access Network (E-UTRAN) cell identity. Preferably, the restricted access rights include: an IMSI of the target UE and a restricted discovered attribute, where the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, and the restricted attribute indicates the UE. Whether restrictions are discovered; restrictions on discovered permissions can also be derived from HSS contract information. According to another aspect of the present invention, a device for determining a WLAN neighboring user equipment is provided, including: a receiving module, configured to receive a wireless local area network (WLAN) neighbor request message sent by a source user equipment (UE), where the WLAN neighbor The request message carries the first UE attribute information of the source UE, and the determining module is configured to: according to the first UE attribute information and the second UE attribute information of the one or more UEs stored in advance, from the currently detected multiple target UEs The neighbor UE of the source UE is determined. Preferably, the receiving module includes: a first receiving unit, configured to: after each UE queries a neighboring device through a dynamic host configuration protocol (DHCP) manner or a domain name resolution server (DNS) manner, and queries the neighbor discovery server, The first interface receives the second UE attribute information reported by the UE, where the second UE attribute information includes a WLAN capability, the first interface adopts an Open Mobile Alliance Device Management (OMA DM) protocol, or the second receiving unit is configured to have The UE of the Long Term Evolution (LTE) discovery capability, after transmitting the Neighbor Solicitation message, receives the second UE attribute information reported by the UE in the UE with the LTE discovery capability through the first interface, where the second UE attribute information includes the WLAN capability, the first The interface uses the Open Mobile Alliance Device Management (OMADM) protocol. Preferably, the determining module includes: a first determining unit, configured to determine whether the third UE attribute information of each target UE belongs to the second UE attribute information; and the second determining unit is configured to determine that the determining result in the first determining unit is If the third UE attribute information is matched with the first UE attribute information, the determining unit is configured to determine that the target UE is the source UE if the continuation determination result of the second determining unit is yes. Neighbor UE. Preferably, the first UE attribute information and the third UE attribute information each include: a WLAN capability; the first UE attribute information, the second UE attribute information, and the third UE attribute information each further include at least one of the following: a geographic location, a third Generation Partnership Project (3GPP) Location, International Mobile Subscriber Identity (IMSI), Media Access Control (MAC) address, restricted access rights; First UE attribute information further includes: Source UE hopes to discover WLAN neighbor information, where the wireless LAN neighbor information that the source UE wishes to discover may also be from the subscription information of the home subscriber server (HSS). Preferably, the WLAN capability indicates whether the UE supports WLAN. Preferably, the geographic location includes: longitude and latitude, wherein the longitude is used to store the longitude of the geographical location where the UE is currently located, and the latitude is used to store the latitude of the geographical location where the UE is currently located. Preferably, the 3GPP location comprises at least: a Public Land Mobile Network (PLMN), a Tracking Area Code (TAC), and an Evolved Global System for Mobile Communications Radio Access Network (E-UTRAN) cell identity. Preferably, the restricted access rights include: an IMSI of the target UE and a restricted discovered attribute, where the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, and the restricted attribute indicates the UE. Whether restrictions are discovered; restrictions on discovered permissions can also be derived from HSS contract information. The invention adopts a method of introducing a neighbor discovery server, and solves the problem that the related technology cannot notify the neighbor to open the Wi-Fi switch for direct WLAN communication, and thus the available wireless local area network neighbor information can be provided to the UE through the neighbor discovery server. To enable the UE to use the information provided by the neighbor discovery server to select the appropriate or best WLAN neighbor and to communicate directly with the WLAN. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a schematic structural diagram of a 3GPP and non-3GPP access system accessing an evolved packet core network according to the related art; FIG. 2 is a flowchart of a method for determining a wireless local area network neighbor user equipment according to an embodiment of the present invention; 3 is a flow chart of reporting capability and location information to a neighbor discovery server after the UE is powered on, geographically changed, changed, or restricted, and the neighbor server is discovered, according to a preferred embodiment of the present invention; A schematic diagram of a management object of UE capability and location information according to a preferred embodiment of the present invention; 5 is a flowchart of acquiring, by a UE, wireless local area network neighbor information from a neighbor discovery server according to a discovered LTE neighbor, a geographical location, and a cell according to a preferred embodiment of the present invention; FIG. 6 is a wireless local area network according to a preferred embodiment of the present invention. FIG. 7 is a schematic diagram of a management object of a wireless local area network neighbor response message according to a preferred embodiment of the present invention; FIG. 8 is a schematic diagram of a UE according to a preferred embodiment of the present invention to a neighbor according to a geographic location. FIG. 9 is a flowchart of obtaining a wireless local area network neighbor information by a server according to a third embodiment of the present invention. The UE obtains wireless local area network neighbor information from a neighbor discovery server according to the discovered LTE neighbor, geographical location, cell, and triggering each target UE. FIG. 10 is a schematic diagram of a management object of a wireless local area network neighbor trigger request message according to a preferred embodiment 3 of the present invention; FIG. 11 is a structural block diagram of a determining apparatus of a wireless local area network neighbor user equipment according to an embodiment of the present invention; Is a wireless according to a preferred embodiment of the present invention Means for determining a block diagram of the neighbor network domain the user equipment; FIG. 13 is a UE according to a preferred embodiment of the present invention, a schematic view of the architecture and information transmission interface between the HSS server and neighbor discovery. 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. First, a brief introduction to the idea proposed by the present invention is provided. For the problem raised in the background, considering that the LTE discovery is already supported in the prior art, the neighbor discovery server can be used to trigger the discovery on the basis of the existing LTE discovery. The LTE neighbors turn on the Wi-Fi switch. Further, in consideration of the fact that some UEs in the prior art support the reporting of the geographic location, the neighbor discovery server is used to trigger the proximity of the neighbor to turn on the Wi-Fi switch, so as to solve the problem that the neighbor cannot be notified in the prior art. Turn on the Wi-Fi switch for direct WLAN communication. 2 is a flowchart of a method for determining a neighboring user equipment of a wireless local area network according to an embodiment of the present invention. As shown in FIG. 2, the method mainly includes the following steps (step S202-step S204): Step S202: The neighbor discovery server receives a wireless local area network (WLAN) neighbor request message sent by the source user equipment (UE), where the WLAN neighbor request message carries the first UE attribute information of the source UE. Step S204: The neighbor discovery server determines the neighbor UE of the source UE from the currently detected multiple target UEs according to the first UE attribute information and the second UE attribute information of the one or more UEs stored in advance. Before the step S202 of the embodiment is performed, the second UE attribute information of one or more UEs may be obtained by using one of the following methods: each UE adopts a Dynamic Host Configuration Protocol (DHCP) method or After the neighboring device is queried by the domain name resolution server (DNS), and the neighbor discovery server is queried, the neighbor discovery server receives the second UE attribute information reported by the UE through the first interface, where the second UE The attribute information includes the WLAN capability, and the first interface adopts the Open Mobile Alliance Device Management (OMA DM) protocol; the neighbor discovery server sends the neighbor request message to the UE with Long Term Evolution (LTE) discovery capability, and then passes the The first interface receives the second UE attribute information reported by the UE in the UE with the LTE discovery capability, where the second UE attribute information includes the WLAN capability, and the first interface adopts the Open Mobile Alliance Device Management (0MA DM) protocol. In this embodiment, step S204 may be implemented to: determine whether the third UE attribute information of each target UE belongs to the second UE attribute information; if the determination result is yes, continue to determine whether the third UE attribute information is the same The UE attribute information is matched; if the judgment result is YES, the target UE is determined as the neighbor UE of the source UE. In this embodiment, the first UE attribute information and the third UE attribute information each include: a WLAN capability; the first UE attribute information, the second UE attribute information, and the third UE attribute information may further include at least one of the following: Location, Third Generation Partnership Project (3GPP) Location, International Mobile Subscriber Identification Number (IMSI), Media Access Control (MAC) The first UE attribute information further includes: the wireless local area network neighbor information that the source UE wants to discover, wherein the wireless local area network neighbor information that the source UE wants to discover may also be from the home subscriber server (HSS) subscription information. . In this embodiment, the WLAN capability indicates whether the UE supports the WLAN. In this embodiment, the geographic location may include: longitude and latitude, where the longitude is used to store the longitude of the geographic location where the UE is currently located, and the latitude is used to store the latitude of the geographic location where the UE is currently located. In this embodiment, the 3GPP location may include at least: a Public Land Mobile Network (PLMN), a Tracking Area Code (TAC), and an evolved global mobile communication system radio access network. (Evolved Universal Terrestrial Radio Access Network, abbreviated as E-UTRAN) Cell ID. In this embodiment, the restricted access rights may include: an IMSI of the target UE and a restricted discovered attribute, where the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, and the restriction is restricted. The discovery attribute indicates whether the UE is restricted from being discovered; the permission to be discovered is restricted, and the contract information of the HSS may also be obtained. The method for determining the wireless local area network neighbor user equipment will be described in detail below with reference to FIG. 3 to FIG. 10, FIG. 13, and the preferred embodiment 1, the preferred embodiment 2 and the preferred embodiment 3. FIG. 3 is a flowchart of reporting UE capability and location information to a neighbor discovery server after the UE is powered on, geographically changed, changed, or restricted, and the neighbor server is discovered according to a preferred embodiment of the present invention. As shown in FIG. 3, the process (for the UE, the manner of actively reporting UE capability and location information (ie, the first UE attribute information described above)) includes: Step S301, UE starting, or optionally, UE geography The location changes, or alternatively, the UE's restrictions are changed by the discovered permissions. Step S302: The UE may query the surrounding devices by using DHCP or DNS, and discover the neighbor discovery server. Step S303: The UE reports the UE capability and location information to the neighbor discovery server through the Uv interface, that is, the first interface. Here, please refer to FIG. 13 at the same time ( FIG. 13 is a schematic diagram of the architecture of the UE, the neighbor discovery server, and the HSS and the information transmission interface between them according to the preferred embodiment of the present invention). As shown in FIG. 13, the UE is through the Uv. The interface and the neighbor discovery server transmit information, wherein the Uv interface adopts the OMA DM protocol, and is used to transmit related information discovered by the wireless local area network between the neighbor discovery server and the UE, so as to help the user select an appropriate or optimal wireless local area network neighbor. User equipment. 4 is a schematic diagram of a management object of UE capability and location information according to a preferred embodiment of the present invention. As shown in FIG. 4, under the node of the UE capability and location information management object, a geographic location node (the node is optional), 3GPP Location node (optional for this node), WLAN-capable leaf, IMSI leaf (optional for the leaf), MAC address leaf (optional for the leaf), restricted access node for the discovery (the node is optional). The geographic location node (optional) has longitude and latitude leaves. When the UE supports geographic location reporting, the current longitude and latitude of the UE need to be filled in. The 3GPP location node (which is optional) has a Public Land Mobile Network (PLMN) leaf, a Tracking Area Code (TAC) leaf, and an E-UTRAN cell identifier leaf. When the UE supports the scenario discovered by the WLAN neighbor after the LTE neighbor discovery, the current 3GPP location of the UE needs to be filled in. The range of values of the WLAN capability leaf: 0 - does not support WLAN; 1- supports WLAN. The IMSI leaf (which is optional) fills in the IMSI of the UE. If the UE supports the function of limiting the discovery, the leaf must be filled in. The MAC address leaf (which is optional) fills in the MAC address of the UE. If the UE supports the WLAN function, the leaf needs to be filled in. The MAC address is the MAC address of the Wi-Fi wireless network card of the UE. Wherein, the restricted access node (which is optional) has an IMSI leaf of the target UE (the leaf is optional), and the discovered leaf is restricted. The IMSI leaf of the target UE is valid, indicating that the specified UE is restricted or allowed to be discovered for the current UE. Which limits the range of values in which the leaves are found: 0 - allowed to be discovered; 1 - restricted to be found. Further, the restricted access node may be 0 to many times, and the meaning of 0 to many times is shown as follows: The node does not appear: indicates that the UE is allowed to be discovered by all UEs; the node appears once and the node The IMSI leaf of the target UE is invalid, and the restricted found leaf is 1: indicating that the UE restriction is found by all UEs; the node appears once and the IMSI leaf of the target UE of the node is valid, and the restricted found leaf is 1: indicating the UE restriction It is discovered by a specific UE; the node appears multiple times and the IMSI leaf of the target UE of the node is valid, and the restricted found leaf is 1: indicating that the UE restriction is found by a specific multiple UE (UE list). FIG. 5 is a flowchart of obtaining, by a UE, a wireless local area network neighbor information from a neighbor discovery server according to a discovered LTE neighbor, a geographical location, and a cell according to a preferred embodiment of the present invention. As shown in FIG. 5, the process includes : Step S501, the source UE has discovered neighbors by LTE, and the neighbors may be one or more. Step S502: The source UE sends a wireless local area network neighbor request message to the neighbor discovery server by using the Uv interface shown in FIG. 13, including the IMSI of the source UE, the WLAN capability of the source UE, the geographic location of the optional source UE, and an optional source. The 3GPP location of the UE, the optional IMSI of the target UE (the target UE may be one or more), and the optional list of wireless local area networks that the source UE wishes to discover (ie, the wireless local area network neighbor information that the source UE wishes to discover to list The form exists, and the neighbors that the source UE wishes to discover may be one or more. 6 is a schematic diagram of a management object of a wireless local area network neighbor trigger request message according to a preferred embodiment of the present invention. As shown in FIG. 6, a geographic location node of an active UE under a node of a wireless local area network neighbor request information object (the node may Select), the 3GPP location node of the source UE (the node is optional), the IMSI leaf of the source UE, the WLAN capability leaf of the source UE, the IMSI leaf of the target UE (the leaf is optional). The optional geographic location node is valid when the UE supports the geographic location report. There are longitude and latitude leaves under the geographic location node. When the UE supports geographic location reporting, the current longitude and latitude of the UE need to be filled in. The optional 3GPP location node needs to fill in the current 3GPP location of the UE when the UE supports the scenario discovered by the WLAN neighbor after the LTE neighbor discovery. The IMSI leaf of the source UE fills in the IMSI of the source UE. The range of the WLAN capability leaf of the source UE is: 0 - does not support WLAN; 1- supports WLAN. The IMSI leaf of the optional target UE is valid when the source UE has obtained neighbor information through LTE neighbor discovery. The IMSI leaf of the target UE may appear 0 to many times. Further, the IMSI leaf of the target UE is described as follows: The IMSI leaf of the target UE does not appear: indicates that the neighbor is not found; or the LTE discovery process has not been implemented before. The IMSI leaf of the target UE appears once: It indicates that an LTE neighbor is found. The IMSI leaf of the target UE appears multiple times: It indicates that multiple LTE neighbors (neighbor list) are found. The optional WLAN neighbor list node that the source UE wants to discover is valid when the source UE has set and stores the neighbor list that is to be discovered. The WLAN neighbor list node that the source UE wishes to discover may appear 0 to many times. Further, the WLAN neighbor list node that the source UE wishes to discover is as follows: The WLAN neighbor list node that the source UE wishes to discover may include: an IMSI leaf of the neighbor that is desired to be discovered and a leaf that is desired to be found. The IMSI of the neighbor that is to be discovered is used to indicate that the UE that wants to discover or does not want to be discovered, and the value of the UE that is to be discovered is 0 or 1. The 0 indicates that the UE is not expected to be discovered, and 1 indicates that the UE is desired to be discovered. The WLAN neighbor list node that the source UE wishes to discover does not appear: indicates that the source UE does not set a specific WLAN neighbor that is desired to be discovered, that is, the source UE wishes to discover all WLAN neighbors. The WLAN neighbor list node that the source UE wishes to discover appears once: indicating that the source UE wishes to discover or does not wish to discover a WLAN neighbor. The WLAN neighbor list node that the source UE wishes to discover appears multiple times: It indicates that the source UE wishes to discover or does not wish to discover multiple WLAN neighbors (neighbor list). Step S503, the neighbor discovery server is based on the IMSI of the source UE, the IMSI of the target UE, the WLAN capability of the source UE, the geographic location of the source UE, the 3GPP location of the source UE, the list of wireless local area networks that the source UE wishes to discover, and steps S301 and S303. The UE location and capability message that has been reported by each target UE before, the neighbor discovery server queries the capability and location management object reported by each UE stored in the neighbor discovery server. If one of the target UEs does not support the WLAN capability, the next target UE is matched; if all the target UEs do not support the WLAN capability, the process ends and exits; if the target UE supports the WLAN capability, further querying its corresponding restriction is found. permission. If the restriction of one of the target UEs is found to be 1 indicating that the restriction is found, the next target UE is matched; if the permission of all the target UEs is found to be 1, the flow ends and exits; if the target UE is allowed to be If found, it further matches the list of wireless local area networks that the source UE wishes to discover. If the WLAN neighbor list that the source UE does not want to discover matches one of the target UEs, the next target UE is matched; if all the target UEs are not the WLAN neighbors that the source UE wishes to discover, the process ends and exits; if the source If the UE wants to discover one or some target UEs, it further queries its corresponding geographical location. If the geographic location of one of the target UEs is valid and does not match the geographic location of the source UE, matching the next target UE; if the geographic location of the target UE is empty, the target UE is considered to be geographically successful; if one or If the geographical locations of multiple or all target UEs match successfully, they are considered to be successful. If the geographic locations of all the target UEs are valid and do not match the geographic location of the source UE, the 3GPP locations of the source UE and the target UE are further matched. If the 3GPP location of one of the target UEs is valid and does not match the 3GPP location of the source UE, the next target UE is matched; if the 3GPP location of the target UE is empty, the target UE is considered to be 3GPP location matching success; if one or If the 3GPP locations of the multiple or all target UEs are successfully matched, they are considered to be successful. If the 3GPP locations of all the target UEs are valid and do not match the 3GPP location of the source UE, the matching fails and the process exits. If the matching is successful, the neighbor discovery server obtains the MAC address information of the target UE corresponding to the neighbors that match the success. Step S504: The neighbor discovery server sends a neighbor subscription information query to the HSS, and carries the IMSI of the UE of the wireless local area network (the one or more) of the wireless local area network target neighbor obtained by the IMSI of the source UE and the process in step S503. Step S505: The HSS responds to the neighbor discovery server with a response to the neighbor subscription information, where the MSISDN of the MSISDN target UE of the source UE, the target UE restricts the discovered right, and the wireless LAN neighbor list that the source UE wants to discover. Step S506, the neighbor discovery server sends a wireless local area network neighbor response message to the source UE. An IMSI including an optional target UE (the target UE may be one or more), a WLAN capability of the target UE, an optional target UE's MSISDN, and an optional target UE's MAC address. 7 is a schematic diagram of a management object of a wireless local area network neighbor response message according to a preferred embodiment of the present invention. As shown in FIG. 7, an IMSI leaf of an optional source UE is available under a node of a wireless local area network neighbor discovery response management object. The selected source UE's MSISDN leaf, the optional source UE's MAC address leaf, the source UE's WLAN capability leaf, and the target UE information node (occurs 0 to many times). The optional IMSI leaf of the source UE fills in the IMSI of the source UE. The optional MSISDN leaf of the source UE fills in the MSISDN of the source UE. The optional source UE's MAC address leaf is filled in with the source UE's MAC address. The range of the WLAN capability leaf of the source UE is: 0 - does not support WLAN; 1- supports WLAN. The target UE node includes an optional IMSI leaf of the target UE, an optional MSISDN leaf of the target UE, an optional target UE's MAC address leaf, a target UE's WLAN capability leaf, The way in which the UE triggers the acquisition of wireless local area network neighbor information is the PULL mode. Step S507, the source UE turns on the WLAN switch, and starts WLAN scanning. Step S508, the neighbor discovery server sends a wireless local area network neighbor response message to the target UE by using the interface shown in FIG. 13, including an optional source UE's IMSI, an optional source UE's MAC address, and an optional source UE's MSISDN. The WLAN capability of the source UE. The way in which the neighbor discovery server actively sends wireless local area network neighbor information to the UE is the PUSH mode. Step S509, the target UE turns on the WLAN switch, and starts WLAN scanning. Step S510, the source UE and the target UE initiate a WLAN device discovery process and an optional WLAN service discovery process. This discovery process can be based on existing Wi-Fi direct communication technologies or configured direct communication methods such as wireless ad hoc network models. Step S511, the source UE and the target UE establish a direct communication path. This direct communication process can be based on existing Wi-Fi direct communication technology or a configured direct communication method such as a wireless ad hoc network mode. The preferred embodiment is shown in FIG. 8. FIG. 8 is a flowchart of the UE acquiring the wireless local area network neighbor information from the neighboring server according to the geographic location according to the preferred embodiment of the present invention. As shown in FIG. 8, the process in this embodiment includes: Step S801, the source UE Through the Uv interface shown in FIG. 13, the wireless local area network neighbor request message is sent to the neighbor discovery server, including the IMSI of the source UE, the WLAN capability of the source UE, the geographical location of the source UE, and the source.

A list of wireless LAN neighbors that the UE wishes to discover. Here, please refer to FIG. 6 simultaneously, under the node of the WLAN neighbor request information object, the geographical location node of the active UE, the IMSI leaf of the source UE, the WLAN capability leaf of the source UE, and the WLAN neighbor list node that the source UE wants to discover. . Step S802, the neighbor discovery server reports the IMS capability of the source UE, the WLAN capability of the source UE, the geographic location of the source UE, the WLAN neighbor list node that the source UE wishes to discover, and the target UEs described in steps 301-303. The UE location and capability message, the neighbor discovery server queries the capability and location management object reported by each UE stored in the neighbor discovery server. If one of the target UEs does not support the WLAN capability, the next target UE is matched; if all the target UEs do not support the WLAN capability, the process ends and exits; if the target UE supports the WLAN capability, further querying its corresponding restriction is found. permission. If the restriction of one of the target UEs is found to be 1 indicating that the restriction is found, the next target UE is matched; if the permission of all the target UEs is found to be 1, the flow ends and exits; if the target UE is allowed to be If found, it further matches the list of wireless local area networks that the source UE wishes to discover. If the WLAN neighbor list that the source UE does not want to discover matches one of the target UEs, the next target UE is matched; if all the target UEs are not the WLAN neighbors that the source UE wishes to discover, the process ends and exits; if the source If the UE wants to discover one or some target UEs, it further queries its corresponding geographical location. If the geographic location of one of the target UEs is valid and does not match the geographic location of the source UE, matching the next target UE; if the geographic location of the target UE is empty, the target UE is considered to be geographically successful; if one or If the geographical locations of the multiple or all target UEs are successfully matched, they are considered to be successful. If the geographic locations of all the target UEs are valid and do not match the geographic location of the source UE, the process ends and exits. If the matching is successful, the neighbor discovery server obtains the MAC address information of the target UE corresponding to the neighbors that match the success. Step S803, the neighbor discovery server sends a neighbor subscription information query to the HSS, and carries the IMSI of the UE of the wireless local area network (the one or more) of the wireless local area network target neighbor obtained by the IMSI of the source UE and the process in step S802. Step S804, the HSS responds to the neighbor discovery server with a response to the neighbor subscription information, where the source UE is included.

The MSISDN, the MSISDN of the target UE, the target UE restricts the discovered rights, and the information of the wireless local area network neighbor list that the source UE wishes to discover. Steps S805 to S810 are the same as steps S506 to S511, and are not described again. The method for determining the WLAN neighboring user equipment provided by the foregoing embodiment, by introducing a neighbor discovery server, using the neighbor discovery server to provide available wireless local area network neighbor information to the UE, so that the UE can use the information provided by the neighbor discovery server, This achieves the effect of selecting the appropriate or optimal wireless LAN neighbor and communicating directly with it. Preferred Embodiment 3 FIG. 9 is a flowchart of acquiring, by a UE according to a preferred embodiment 3 of the present invention, a wireless local area network neighbor information from a neighbor discovery server according to the discovered LTE neighbor, geographic location, and cell. As shown in FIG. 9, the process includes Steps S901 to S902 are the same as steps S501 to S502, and are not described again. In step SS903, the neighbor discovery server sends a WLAN neighbor trigger request message to the LTE-discovered neighbor target UE1 to the target UEn (for the UE, the UE capability and location information (ie, the first UE attribute information described above) are passively reported. Mode), and set up a timer waiting for response, the message contains the IMSI of the target UE, the IMSI of the source UE, here, in order to more clearly understand the management object of the WLAN neighbor trigger request message, please refer to FIG. 10 (FIG. 10 is A schematic diagram of a management object of a wireless local area network neighbor trigger request message according to a preferred embodiment 3 of the present invention. Step S904, the target UE1~target UEn match the IMSI of the source UE in the WLAN neighbor trigger request message, if the target UE restriction is found by the source UE, the target UE does not respond back; if the target UE is allowed to be found by the source UE, the target The UE sends a WLAN neighbor trigger response message, where the message includes UE capability and location information. Here, please refer to FIG. 4 at the same time. Step S905, the neighbor discovery server according to the IMSI of the source UE, the IMSI of the target UE, the WLAN capability of the source UE, the geographic location of the source UE, the 3GPP location of the source UE, and the target UEs previously reported in step 904 have been reported. The UE location and capability message, the neighbor discovery server queries the capabilities and location management objects reported by the UEs stored in the neighbor discovery server. If one of the target UEs does not support the WLAN capability, the next target UE is matched; if all the target UEs do not support the WLAN capability, the process ends and exits; if the target UE supports the WLAN capability, further querying its corresponding restriction is found. permission. If the geographic location of one of the target UEs is valid and does not match the geographic location of the source UE, matching the next target UE; if the geographic location of the target UE is empty, the target UE is considered to be geographically successful; if one or If the geographical locations of the multiple or all target UEs are successfully matched, they are considered to be all successful. If the geographic locations of all the target UEs are valid and do not match the geographic location of the source UE, the 3GPP locations of the source UE and the target UE are further matched. . If the 3GPP location of one of the target UEs is valid and does not match the 3GPP location of the source UE, the next target UE is matched; if the 3GPP location of the target UE is empty, the target UE is considered to be 3GPP location matching success; if one or If the 3GPP locations of multiple or all target UEs match successfully, they are considered Both match successfully; if all 3GPP locations of the target UE are valid and do not match the 3GPP location of the source UE, the match fails and the process exits. If the matching is successful, the neighbor discovery server obtains the MAC address information of the target UE corresponding to the neighbors that match the success. Steps S906 to S913 are the same as steps S504 to S511, and are not described again. 11 is a structural block diagram of a determining apparatus of a WLAN neighboring user equipment according to an embodiment of the present invention. The apparatus is configured to implement the determination of a WLAN neighboring user equipment provided by the foregoing embodiment. As shown in FIG. 11, the apparatus mainly includes: The receiving module 10 and the determining module 20 are received. The receiving module 10 is configured to receive a wireless local area network (WLAN) neighbor request message sent by the source user equipment (UE), where the WLAN neighbor request message carries the first UE attribute information of the source UE, and the determining module 20 is connected to receive The module 10 is configured to determine a neighbor UE of the source UE from the currently detected multiple target UEs according to the first UE attribute information and the second UE attribute information of the one or more UEs stored in advance. FIG. 12 is a structural block diagram of a determining apparatus of a WLAN neighboring user equipment according to a preferred embodiment of the present invention. As shown in FIG. 12, in the apparatus provided in the preferred embodiment, the receiving module 10 may include: a first receiving unit 12, The second UE attribute that is reported by the UE is received by the first interface after the neighboring device is queried by using a dynamic host configuration protocol (DHCP) or a domain name resolution server (DNS). Information, where the second UE attribute information includes a WLAN capability; or the second receiving unit 14 is configured to receive the UE with the LTE discovery capability by using the first interface after sending the neighbor request message to the UE with Long Term Evolution (LTE) discovery capability The second UE attribute information reported by the UE in the second UE attribute information includes a WLAN capability, and the first interface adopts an Open Mobile Alliance Device Management (OMADM) protocol. In the apparatus provided by the preferred embodiment, the determining module 20 may include: a first determining unit 22, configured to determine whether the third UE attribute information of each target UE belongs to the second UE attribute information; the second determining unit 24, the connection The first determining unit 22 is configured to continue to determine whether the third UE attribute information matches the first UE attribute information if the determination result of the first determining unit is yes; the determining unit 26 is connected to the second determining unit 24. Set, in a case that the continuation determination result of the second judging unit is yes, determine the target UE as a neighbor UE of the source UE. In a practical application, the first UE attribute information and the third UE attribute information each include: a WLAN capability; the first UE attribute information, the second UE attribute information, and the third UE attribute information each include at least one of the following: a third generation partnership project (3GPP) location node, an international mobile subscriber identity (IMSI), a medium access control (MAC) address, a right to limit discovery; the first UE attribute information further includes: a source UE The wireless local area network neighbor information that is desired to be discovered, wherein the wireless local area network neighbor information that the source UE wishes to discover may also be from the subscription information of the home subscriber server (HSS). Preferably, the WLAN capability indicates whether the UE supports WLAN. Preferably, the geographic location node includes: longitude and latitude, wherein the longitude is used to store the longitude of the geographical location where the UE is currently located, and the latitude is used to store the latitude of the geographical location where the UE is currently located. Preferably, the 3GPP location node may further include at least: a Public Land Mobile Network (PLMN), a Tracking Area Code (TAC), and an Evolved Global System for Mobile Communications (LTE) cell identity. Preferably, the restricted access authority node comprises: an IMSI of the target UE and a restricted discovered attribute, wherein the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, and the restricted attribute representation is restricted. Whether the UE is restricted from being discovered; restricting the discovered rights, and may also be from the HSS subscription information. The determining device of the WLAN neighboring user equipment provided by the foregoing embodiment, by introducing a neighbor discovery server, using the UE to report the geographical location information to the neighbor discovery server, and the neighbor discovery server provides the available wireless local area network neighbor information to the UE, so that the UE can Using the way the neighbors discover the information provided by the server, the effect of selecting the appropriate or best WLAN neighbor and direct WLAN communication with it is achieved. From the above description, it can be seen that the present invention achieves the following technical effects: When the UE wants to select a wireless local area network neighbor, if there are both a 3GPP access network and a non-3GPP access network, the neighbor discovery server can provide the UE with the available WLAN neighbor information, so that the UE can use the information provided by the neighbor discovery server to select a suitable WLAN neighbor and directly communicate with the WLAN. If there are multiple WLAN neighbors at the same time, the neighbor discovery server can optionally be based on the UE. The current geographic location information provides the UE with the best wireless local area network neighbors to enable the UE to use the information provided by the neighbor discovery server to select the best wireless local area network neighbor for WLAN direct communication. It should be noted that, the present invention does not limit the number of groups of wireless local area network neighbors, and both the source UE and the target UE can directly communicate with multiple groups of wireless local area network neighbors, that is, the source UE and the target UE can have multiple WLAN direct communication sessions. Concurrency. 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, thereby Storing them in a storage device is performed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or they may be separately fabricated into individual integrated circuit modules, or Multiple of these 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 is only the preferred embodiment of the present invention, and is 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 method for determining a neighboring user equipment of a wireless local area network, comprising:

The neighbor discovery server receives the WLAN WLAN neighbor request message sent by the source user equipment UE, where the WLAN neighbor request message carries the first UE attribute information of the source UE, and the neighbor discovery server is configured according to the first UE attribute. And the second UE attribute information of the one or more UEs that are pre-stored, and the neighbor UEs of the source UE are determined from the currently detected multiple target UEs.

2. The method according to claim 1, wherein the second UE attribute information of the one or more UEs is obtained by one of the following manners: at each UE by a dynamic host configuration protocol DHCP mode or a domain name resolution server DNS mode After querying the neighboring device and querying the neighbor discovery server, the neighbor discovery server receives the second UE attribute information reported by the UE by using the first interface, where the second UE attribute information includes WLAN capability, the first interface adopts an Open Mobile Alliance device to manage the OMA DM protocol;

After the neighbor discovery server sends a neighbor request message to the UE with the long-term evolution LTE discovery capability, the second UE receives the second UE attribute information reported by the UE in the UE with the LTE discovery capability by using the first interface, where The second UE attribute information includes a WLAN capability, and the first interface uses an Open Mobile Alliance device to manage the OMA DM protocol.

The method according to claim 2, wherein the neighbor discovery server is configured from the currently detected multiple targets according to the first UE attribute information and the second UE attribute information of one or more UEs stored in advance. Determining the neighbor UE of the source UE in the UE includes:

Determining whether the third UE attribute information of each target UE belongs to the second UE attribute information; if the determination result is yes, continuing to determine whether the third UE attribute information matches the first UE attribute information;

In the case where the judgment result is YES, the target UE is determined as the neighbor UE of the source UE.

4. The method according to claim 3, wherein

The first UE attribute information and the third UE attribute information each include: the WLAN capability; The first UE attribute information, the second UE attribute information, and the third UE attribute information each further include at least one of the following: a geographic location, a third generation partnership plan 3GPP location, an international mobile subscriber identity IMSI, The media access controls the MAC address and limits the discovered permissions;

The first UE attribute information further includes: wireless local area network neighbor information that the source UE wants to discover, wherein the wireless local area network neighbor information that the source UE wishes to discover may also be from the subscription information of the home user server HSS.

The method according to any one of claims 2 to 4, wherein the WLAN capability indicates whether the UE supports the WLAN.

The method according to claim 5, wherein the geographic location comprises: longitude and latitude, wherein the longitude is used to store the longitude of the geographical location where the UE is currently located, and the latitude is used to store the current location of the UE. The latitude of the geographic location.

The method according to claim 5, wherein the 3GPP location comprises at least: a public land mobile network PLMN, a tracking area code TAC, and an evolved global mobile communication system radio access network E-UTRAN cell identity.

8. The method according to claim 5, wherein

The privilege for limiting the discovery includes: an IMSI of the target UE and a restricted discovery attribute, where the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, The restriction found attribute indicates whether the UE is restricted from being discovered;

The permission to limit the discovery may also be from the subscription information of the HSS.

9. A device for determining a neighboring user equipment of a wireless local area network, comprising:

a receiving module, configured to receive a WLAN WLAN neighbor request message sent by the source user equipment UE, where the WLAN neighbor request message carries the first UE attribute information of the source UE, and the determining module is configured to be according to the first The UE attribute information and the second UE attribute information of the one or more UEs stored in advance determine a neighbor UE of the source UE from the currently detected multiple target UEs.

The device according to claim 9, wherein the receiving module comprises:

The first receiving unit is configured to: after each UE queries the neighboring device through the dynamic host configuration protocol DHCP mode or the domain name resolution server DNS mode, and after querying the neighbor discovery server, receiving the UE reporting by using the first interface The second UE attribute information, where The second UE attribute information includes a WLAN capability, and the first interface uses an Open Mobile Alliance device to manage the OMA DM protocol; or

a second receiving unit, configured to: after the neighboring request message is sent to the UE with the long-term evolution LTE discovery capability, receive, by using the first interface, the second UE attribute information reported by the UE in the UE with the LTE discovery capability, The second UE attribute information includes a WLAN capability, and the first interface uses an Open Mobile Alliance device to manage the OMA DM protocol.

The device according to claim 10, wherein the determining module comprises:

a first determining unit, configured to determine whether the third UE attribute information of each target UE belongs to the second UE attribute information; and the second determining unit is configured to continue if the determining result of the first determining unit is yes Determining whether the third UE attribute information matches the first UE attribute information;

The determining unit is configured to determine the target UE as the neighbor UE of the source UE if the continuation determination result of the second determining unit is yes.

12. The device according to claim 11, wherein

The first UE attribute information and the third UE attribute information each include: the WLAN capability; the first UE attribute information, the second UE attribute information, and the third UE attribute information each further include the following At least one of: geographic location, 3rd Generation Partnership Project 3GPP location, International Mobile Subscriber Identity (IMSI), Media Access Control MAC address, restricted access rights;

The apparatus according to any one of claims 10 to 12, wherein the WLAN capability indicates whether the UE supports the WLAN.

The device according to claim 13, wherein the geographic location comprises: longitude and latitude, wherein the longitude is used to store the longitude of the geographical location where the UE is currently located, and the latitude is used to store the current location of the UE. The latitude of the geographic location.

15. The apparatus of claim 13, wherein the 3GPP location comprises at least: a public land mobile network PLMN, a tracking area code TAC, and an evolved global mobile communication system radio access network E-UTRAN cell identity.

16. The apparatus according to claim 13, wherein

The privilege of the restricted discovery includes: an IMSI of the target UE and a restricted discovery attribute, where the IMSI of the target UE is used to indicate whether the target UE has a restriction or permission to be discovered for the current UE, The restriction found attribute indicates whether the UE restriction is found; the permission to limit the discovery may also be from the subscription information of the HSS.