WO2007000117A1 - Procede permettant de localiser un terminal mobile - Google Patents

Procede permettant de localiser un terminal mobile Download PDF

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Publication number
WO2007000117A1
WO2007000117A1 PCT/CN2006/001488 CN2006001488W WO2007000117A1 WO 2007000117 A1 WO2007000117 A1 WO 2007000117A1 CN 2006001488 W CN2006001488 W CN 2006001488W WO 2007000117 A1 WO2007000117 A1 WO 2007000117A1
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WIPO (PCT)
Prior art keywords
positioning
supl
terminal
slp
user
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PCT/CN2006/001488
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English (en)
French (fr)
Inventor
Zhengkai Ge
Qiang Fang
Hui Zhao
Original Assignee
Huawei Technologies Co., Ltd.
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37579023&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2007000117(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to DE602006009882T priority Critical patent/DE602006009882D1/de
Priority to CN2006800124099A priority patent/CN101160986B/zh
Priority to AT06753054T priority patent/ATE446655T1/de
Priority to EP06753054A priority patent/EP1773076B1/en
Publication of WO2007000117A1 publication Critical patent/WO2007000117A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/52Network services specially adapted for the location of the user terminal

Definitions

  • the present invention relates to the field of mobile communication technologies, and more particularly to a positioning method for a mobile terminal. Background technique
  • the location service (LCS) of the mobile communication network obtains the location information of the target user (which may be the latitude and longitude information or the location of the local street, etc.) through a certain technology, and provides it to the target user himself (for its own positioning). ), provided to the communication system itself (for sub-regional billing or operator operation and maintenance functions), or to other institutions and individuals requesting the location of the user (for value-added services). Therefore, the location business mainly includes emergency rescue, vehicle navigation and intelligent transportation systems, work scheduling and team management, mobile yellow page query, and enhanced network performance.
  • OMA Open Mobile Alliance
  • SUPL Secure User-Plane Location
  • SET SUPL Enabled Terminal
  • SUPL is divided into network origination (NI, Network Initiated) and terminal origination (SI, SET Initiated) processes.
  • NI Network Initiated
  • SI terminal origination
  • the SI process implements the ability of SET to initiate its own positioning.
  • A. Secure User Level Location Protocol Agent built into the SET The SUPL Agent receives the location request initiated by the application running on the SET. If the SET is not connected to the packet data network, connect the SET to the packet data network, or SET will establish a circuit switch data connection;
  • the SUPL Agent on the SET sends a secure user plane positioning protocol start message SUPL
  • the START begins a positioning session with the SUPL positioning platform (SLP, SUPL Platform).
  • the SUPL START message contains at least the session identification session-id, the quality requirement parameter QoS, the SET capability, and the location identifier.
  • the SET capability includes the positioning methods it supports, such as: AGPS SET-Assisted A-GPS with auxiliary positioning, AGPS SET-Based A-GPS based on terminal positioning and corresponding positioning protocols, such as Radio Resource Location Service Protocol RRLP, Radio Resource Control Protocol RRC or TIA-801 Positioning Protocol TIA-801 .
  • the SLP will determine the posmethodo used.
  • the SLP will use the supported positioning protocol carried in the SUPL START message (eg: RRLP, RRC, TIA) -801) Positioning. If the SLP has calculated the location of the SET based on the information in the SUPL START message and the requested QoS is satisfied, then the location result will be brought back by the SUPL END message of the end session in a subsequent step G.
  • the supported positioning protocol eg: RRLP, RRC, TIA
  • the SLP determines that the destination terminal is not currently roaming.
  • the SLP returns a SUPL response message SUPL RESPONSE to the SET.
  • the SUPL RESPONSE message contains the session-id and the null SLP address, indicating that the SET cannot establish a new connection.
  • SUPL RESPONSE can also contain the posmethod parameter.
  • the SET After receiving the SUPL response message SUPL RESPONSE message, the SET sends a positioning start message SUPL POS INIT message.
  • the SUPL POS INIT message contains at least the session-id.
  • SET capabilities include supported positioning methods (eg SET-Assisted A-GPS, SET-Based A-GPS) and related positioning protocols (eg RRLP, RRC, TIA-801).
  • supported positioning methods eg SET-Assisted A-GPS, SET-Based A-GPS
  • related positioning protocols eg RRLP, RRC, TIA-801.
  • the SLP determines the posmethod to be used. If posmethod is requested, the SLP will use the SET-supported positioning protocol (eg: RRLP, RRC, TIA-801) obtained from the SUPL POS INIT message. SET and SLP may exchange some positioning process messages continuously. The SLP calculates the position based on the received position measurement information and estimates the result (SET-Assisted) or has the position estimation result (SET-Based) calculated by the SET based on the auxiliary data provided by the SLP.
  • the SET-supported positioning protocol eg: RRLP, RRC, TIA-801
  • the SLP will send a SUPL End message SUPL END message to the SET, notifying the SET that the positioning process is finished, and the positioning session has been completed.
  • the SLP may add the determined location to the SUPL END message.
  • SET will release all resources related to this session.
  • the SLP will release all resources related to this session.
  • the SET can only request its own location information, and cannot obtain other terminal location information.
  • FIG. 2 is a flow chart of another positioning method in the prior art.
  • another solution for implementing positioning is to implement a process of triggering SUPL positioning from the network side in the network originating NI process of OMA SUPL.
  • the SUPL Agent associated with the SLP sends a positioning protocol to the SLP _Standard Immediate Location Request MLP SLIR message.
  • the SLP determines that the destination terminal is not currently roaming.
  • the SLP initializes the positioning session with the SUPL INIT message, and the SUPL INIT message may be carried by the WAP PUSH or SMS trigger.
  • the SUPL INIT message contains at least the session-id, the address of the SLP, and the specified positioning method. SUPL INIT may also contain the expected Qos. If the result of the privacy check in step A is that the destination user needs to confirm or notify the intended user, the SLP will also include the notification parameter Notification in the SUPL INIT message.
  • the SET When the SET receives the SUPL INIT, it can bind itself to the packet data network (if it is not bound) or establish a circuit switched data connection.
  • the SET identifies the Notification and responds appropriately.
  • the SET establishes a data connection with the SLP based on the SLP address received in step C, and sends a SUPL POS INIT message to start a positioning session with the SLP.
  • the SUPL POS INIT message contains at least session-id, SET capability and location identifier lid.
  • the capabilities of SUPL-enabled terminal SETs include SET-supported positioning methods (eg SET-Assisted A-GPS, SET-Based A-GPS) and associated positioning protocols (eg R LP, RRC, IS-801).
  • the SET may provide a network measurement report NMR related to the currently used wireless technology (eg, GSM network is time advance TA, channel power measurement parameter RXLEV).
  • the SET may provide the required location or network time information.
  • SET may be specified in SUPL POS INIT message
  • the SLP determines the posmethocL used. If posmethod is specified, the SLP adopts the supported positioning protocol obtained from the SUPL POS INIT (eg RRLP, RRC, TIA-801). There may be several consecutive positioning process message interactions between the SET and the SLP. SLP The position information is calculated based on the received position measurement information and the result of the estimation (SET-Assisted) or the SET calculates the positioning result (SET-Based) based on the auxiliary data provided by the SLP.
  • the supported positioning protocol obtained from the SUPL POS INIT.
  • the SLP After the positioning calculation is completed, the SLP sends a SUPL END message to the SET, indicating that there will be no new positioning process and ending the positioning session. SET releases all resources related to this session.
  • SLP sends a mobile positioning protocol to the SUPL Agent, a standard immediate location response MLP SLIA message, and returns the positioning result.
  • the SLP releases all resources associated with this session.
  • a method for locating a mobile terminal according to the present invention includes:
  • the requesting terminal sends a positioning request message to the SUPL positioning platform, where the positioning request message carries the identifier of the located user;
  • the SUPL positioning platform identifies the identifier of the located user, and obtains location information of the located user;
  • the SUPL positioning platform sends a positioning end message carrying the location information of the located user to the requesting terminal.
  • the method also includes:
  • a data connection is established between the requesting terminal and the SUPL positioning platform SLP, and a step of establishing a data connection between the located user and the SUPL positioning platform SLP.
  • the user terminal that is located to locate the capability information of its own support is given to the SUPL positioning platform.
  • the SUPL positioning platform performs corresponding positioning processing according to the capability of the user terminal to be located, wherein the capability of the user terminal to support positioning includes a positioning method supported by the user terminal and an associated positioning protocol.
  • the related positioning protocol includes a radio resource location service protocol RRLP, a radio resource control protocol RC or a TIA-801 positioning protocol IS-801.
  • RRLP radio resource location service protocol
  • RC radio resource control protocol
  • the identifier of the located user is information for uniquely identifying the identity of the terminal, including an IMSI identifier and an MSISDN identifier.
  • the SLP sends a location end message carrying the failure information to the requesting terminal.
  • the location end message carrying the location information of the located user is a SUPL END message.
  • the SLP identifies the identifier of the located user.
  • the SUPL INIT message is sent to initialize the positioning session to start the corresponding SUPL positioning process.
  • the SLP identifies the identifier of the located user.
  • the SLP sends a message to the home location register of the located user to request the VMSC/MSC address or the SGSN address of the current location of the user. To start the corresponding MT-LR positioning process.
  • FIG. 1 is a schematic flow chart of a positioning method in the prior art
  • FIG. 3 is a schematic structural diagram of a system for implementing positioning of a mobile terminal
  • FIG. 4 is a schematic flowchart of a positioning method of a mobile terminal provided by the present invention.
  • FIG. 5 is a schematic flow chart of a mobile terminal positioning method according to a first embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a mobile terminal positioning method according to a second embodiment of the present invention.
  • 3 is a structural diagram of a system for implementing positioning of a mobile terminal.
  • the system consists of a SUPL Agent, a network containing the LCS system, and a SET.
  • the core idea of the present invention is that when the SET initiates the SUPL START, in the START message, the identifier of the other terminal that needs to be located is carried, and after receiving the START message, the SLP identifies the identifier of the other terminal in the message, and the identifier of the other terminal in the message is
  • the ability to perform corresponding positioning, the capabilities of the SUPL-enabled terminal SET include SET-supported positioning methods (eg SET-Assisted A-GPS, SET-BasedA-GPS) and related positioning protocols (eg RRLP, RRC, IS-801). Supported by SUPL-enabled terminal SET and SUPL positioning platform H-SLP, the mobile terminal can provide the required location information or network time information. After the positioning is completed, the positioning result is returned to the SET requesting the positioning through SUPL END.
  • FIG. 4 is a schematic flowchart of a positioning method of a mobile terminal according to the present invention. As shown in FIG. 4, the method of the present invention includes the following steps:
  • the SUPL Agent built in the SET receives a positioning request initiated by an application running on the SET. If the SET is not yet connected to the packet data network, connect it to the packet data network, or SET to establish a circuit switched data connection.
  • the SUPL Agent on the SET sends a SUPL START message to start a positioning session with the SLP.
  • the SUPL START message contains at least the session-id, QoS, and the identity of the located user.
  • the identity of the located user may be IMSI, MSISDN or other information that can uniquely identify a terminal.
  • the SLP identifies the identifier of the located user, and performs a corresponding positioning process according to the terminal capability of the user.
  • the positioning process may be a SUPL positioning process, a positioning process defined by 3GPP 03.71 or 3GPP 23.271, or may be another type of terminal. Locate the process and get the location information of the user.
  • the SLP will send a SUPL END message to the SET to notify that the positioning session has been completed.
  • the SLP adds the location of the located user to the SUPL END message. If the positioning fails, the SUPL END message carries the information of the positioning failure.
  • SET will release all resources related to this session.
  • the SLP will release all resources related to this session.
  • the SUPL Agent built in the SET receives the positioning request initiated by the application running on the SET. If the SET is not connected to the packet data network, connect it to the packet data network, or SET will establish a circuit switched data connection.
  • the SUPL Agent on the SET sends a SUPL START message to start a positioning session with the SLP.
  • the SUPL START message contains at least session-id, Qos, requestorld and the identity of the located user (IMSI, International Mobile Subscriber Identity).
  • the SLP identifies the identifier of the located user, and determines that the terminal supports SUPL according to the capability of the located terminal, and then sends a SUPL INIT message to initialize the positioning session, and the SUPL INIT message may be carried by the WAP PUSH or SMS trigger mode.
  • the SUPL INIT message contains at least the session-id, the address of the SLP and the specified positioning method.
  • SUPL INIT may also contain the expected QoS.
  • the user privacy protection can be set as needed. Accordingly, the SLP needs to perform privacy authentication on the request, that is, according to the requested user terminal ID, it is checked whether the user has the right to use the service requested by the user, for example: querying other terminals position. If the privacy authentication result requires the destination user to confirm or notify the intended user, the SLP will also include the Notification parameter in the SUPL INIT message.
  • the location terminal SET After the location terminal SET receives the SUPL INIT, it can bind itself to the packet data network (if not bound) or establish a circuit switched data connection.
  • Target SET identifies the Notification and reports an appropriate response.
  • the Target SET establishes a data connection with the SLP according to the SLP address received in step S13, and transmits a SUPL POS INIT message to start a positioning session with the SLP.
  • the SUPL POS INIT message contains at least the session-id, SET capability and location identifier (lid).
  • the SET capabilities include SET-supported positioning methods (eg SET-Assisted A-GPS, SET-Based A-GPS) and related positioning protocols (eg RRLP, RRC, IS-801).
  • the Target SET may provide NMR related to the wireless technology currently used (eg GSM network is TA, RXLEV). With Target SET and SLP support, SET may provide the required location or network Time information.
  • the Target SET may specify the Assistance Data Requested Assistance Data parameter in the SUPL POS INIT message.
  • the SLP determines the adopted posmethod according to the posmethod supported by the Target SET included in the SUPL POS INIT message. If posmethod is specified, the SLP uses the supported positioning protocols (such as RRLP, RRC, TIA-801) obtained from SUPL POS INIT. There may be several consecutive positioning process message interactions between the Target SET and the SLP. The SLP calculates the position information based on the received position measurement information and estimates the result (SET-Assisted) or Target SET to calculate the positioning result (SET-Based) based on the auxiliary data provided by the SLP.
  • the supported positioning protocols such as RRLP, RRC, TIA-801
  • the SLP sends a SUPL END message to the Target SET, indicating that there is no new positioning process, and ending the session with the Target SET.
  • the SLP will send a SUPL END message to the requesting terminal Original SET to notify that the positioning session has been completed.
  • the SLP adds the location of the located user to the SUPL END message.
  • Original SET will release all resources related to this session.
  • the SLP will release all resources related to this session.
  • the SET actively initiates a SUPL session and requests the SLP for the location of another terminal.
  • the corresponding processing flow is as shown in FIG. 6: S21.
  • the SUPL Agent built in the SET receives the operation on the SET.
  • the application initiated the location request. If the SET is not yet connected to the packet data network, connect it to the packet data network, or SET will establish a circuit switched data connection.
  • the SUPL Agent on the SET sends a SUPL START message to start a positioning session with the SLP.
  • the SUPL START message contains at least the session-id, Qos, requestorld, and the identity of the located user (MSISDN).
  • the SLP identifies the identifier of the located user, and determines that the terminal does not support the SUPL according to the capability of the located terminal. It is an ordinary UE terminal (also referred to as an MS in the 2G network), and then starts the terminal suspension-positioning defined by the 3GPP. Request MT-LR positioning process. SLP sends location service routing message SRI for LCS to the HLR of the located user Routing Info for LCS), requesting the address of the visited mobile switching center/mobile switching center VMSC/MSC Server or the General Packet Radio Service SGSN (Serving GPRS Support Node) of the current location of the user.
  • SRI location service routing message
  • the HLR returns an SRI for LCS response message to the SLP, where the response message carries the address of the VMSC/MSC Server or the SGSN where the located terminal is located.
  • the SLP sends a PSL (Recommended Subscriber Location) message to the VMSC/MSC Server or the SGSN according to the obtained address.
  • PSL Recommended Subscriber Location
  • the VMSC/MSC Server or the SGSN interacts with the located terminal to obtain location information of the terminal.
  • the VMSC/MSC Server or the SGSN returns the location information of the located terminal to the SLP through the PSL response message.
  • the SLP will send a SUPL END message to the requesting terminal Original SET to notify that the positioning session has been completed.
  • the SLP adds the location of the located user to the SUPL END message.
  • Original SET will release all resources related to this session.
  • the SLP will release all resources related to this session.

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Description

一种定位移动终端的方法
技术领域 本发明涉及移动通信技术领域, 更确切地说是涉及移动终端的定位 方法。 背景技术
移动通信网络的位置业务(LCS, Location service )是通过一定的技 术,得到目标用户的位置信息(可以是经纬度信息或当地街道的位置等), 将其提供给该目标用户本人(用于自身定位),提供给通信系统本身(用 于分区域计费或运营商操作维护功能) , 或提供给其他请求得到该用户 位置的机构和个人(用于增值业务)。 因此, 位置业务主要有紧急救援、 车辆导航和智能交通系统、 工作调度和团队管理、 移动黄页查询、 增强 网络性能等几个方面的应用。
开放移动联盟(OMA, Open Mobile Alliance )作为移动数据业务领 域的标准组织, 在位置业务方面制定了很多应用层的协议, 安全用户层 面定位协议(SUPL, Secure User-Plane Location )就是针对支持 SUPL的 终端 (SET, SUPL Enabled Terminal )制定的定位协议。
SUPL中根据发起方的不同, 分为网络始发(NI, Network Initiated ) 和终端始发(SI, SET Initiated )流程, 其中 SI流程实现了 SET主动发起 对自身定位的能力。
典型的非漫游 SI实现定位的流程如图 1所示:
A、 内置在 SET上的安全用户层面定位协议代理程序 SUPL Agent接 收运行在 SET上的应用程序发起的定位请求。 如果 SET还未连接到分组 数据网上, 则将 SET连接至分组数据网上, 或者 SET将建立一个电路交 换数据连接;
B、 SET上的 SUPL Agent发送安全用户层面定位协议开始消息 SUPL
START开始与 SUPL定位平台 (SLP, SUPL Platform )之间的定位会话。 SUPL START消息至少包含了会话标识 session-id、 质量要求参数 QoS、 SET能力和位置标识。 SET能力包含了其所支持的定位方法, 例如: 终端 辅助定位的 AGPS SET-Assisted A-GPS , 基于终端定位的 AGPS SET- Based A-GPS和相应的定位协议, 如无线资源位置业务协议 RRLP, 无线资源控制协议 RRC或 TIA-801定位协议 TIA-801。 依据 SUPL START 消息包含的 SET所支持的定位方法 posmethod ( s ) , SLP将确定采用的 posmethodo 如果指定了 posmethod, SLP将使用 SUPL START消息中所携 带的支持的定位协议(例如: RRLP, RRC, TIA-801 )进行定位。 如果 SLP根据 SUPL START消息中的信息已经计算出了 SET的位置,且满足所 请求的 QoS , 则此位置结果会在后续步骤 G由结束会话的 SUPL END消息 带回。
C、 SUPL定位平台 SLP确定目的终端当前未漫游。
D、 SLP向 SET返回 SUPL响应消息 SUPL RESPONSE。 SUPL RESPONSE消息包含了 session-id和空值的 SLP地址, 指示 SET不能再建 立新的连接。 SUPL RESPONSE还可包含 posmethod参数。
E、 SET收到 SUPL响应消息 SUPL RESPONSE消息后,发送定位开始 消息 SUPL POS INIT消息。 SUPL POS INIT消息至少包含了 session-id,
SET能力和位置标识。 SET能力包括了支持的定位方法 (例如: SET-Assisted A-GPS, SET- Based A-GPS )和相关的定位协议 (例如 RRLP, RRC, TIA-801 ) 。
F、 (可选步驟) 依据 SUPL POS INIT消息中包含的 SET支持的 posmethod, SLP确定采用的 posmethod。 如果请求了 posmethod, SLP将 使用从 SUPL POS INIT消息中获得的 SET支持的定位协议 (例如: RRLP, RRC, TIA-801 ) 。 SET和 SLP可能会连续交换一些定位过程消息。 SLP 根据收到的位置测量信息计算位置并估计结果( SET-Assisted )或者已经 有了 SET根据 SLP提供的辅助数据计算出的位置估计结果( SET-Based )。
G、 当定位计算完成后, SLP将向 SET发送 SUPL结束消息 SUPL END 消息, 通知 SET本次定位过程结束, 并且定位会话已经完成。 根据定位 方法和采用的定位协议, SLP可能会把确定的位置加入 SUPL END消息 中。 SET将释放所有与本次会话相关的资源。 SLP将释放所有与本次会话 相关的资源。 该技术方案中, SET仅能请求自身位置信息, 无法获取其它终端位 置信息。
图 2为现有技术中的另一种定位方法流程图, 参照图 2, 另一实现定 位的方案是在 OMA SUPL的网絡始发 NI流程中,实现从网络侧触发 SUPL 定位的流程。
A、 与 SLP相关联的 SUPL Agent向 SLP发送定位协议 _标准立即定位 请求 MLP SLIR消息。
B、 SLP确定目的终端当前未漫游。
C、 SLP用初始化消息 SUPL INIT消息初始化定位会话, SUPL INIT 消息可能由 WAP PUSH或 SMS触发方式承载。 SUPL INIT消息至少包含 了 session-id, SLP的地址和指定的定位方式。 SUPL INIT可能还包含期望 的 Qos。如果在第 A步的隐私检查结果是需要目的用户确认或通知目的用 户, 则 SLP还将在 SUPL INIT消息中包含通知参数 Notification
D、 当 SET收到 SUPL INIT后, 可以将自己绑定到分组数据网上(如 果未绑定的话) , 或者建立电路交换数据连接。
E、 SET对 Notification进行鉴定并做出适当的响应。 SET根据在第 C 步中收到的 SLP地址与 SLP建立数据连接, 发送 SUPL POS INIT消息开始 与 SLP的定位会话。 SUPL POS INIT消息至少包含 session-id, SET能力和 位置标识 lid。 支持 SUPL的终端 SET的能力包含 SET支持的定位方法(例 如 SET-Assisted A- GPS, SET-Based A-GPS ) 和相关的定位协议(例如 R LP, RRC, IS-801 ) 。 SET可能会提供与当前所使用的无线技术相关 的网络测量报告 NMR (例如 GSM网为时间提前量 TA, 频道功率测量参 数 RXLEV ) 。 在 SET和 H-SLP支持的情况下, SET可能提供所需的自身 位置或网络时间信息。 SET在 SUPL POS INIT消息中可能会指定
Figure imgf000005_0001
F、 (可选步骤) 依据 SUPL POS INIT消息中包含的 SET支持的 posmethod, SLP确定采用的 posmethocL 如果指定了 posmethod, 则 SLP 采用从 SUPL POS INIT中获得的支持的定位协议(例如 RRLP, RRC, TIA-801 )。 SET与 SLP之间可能会有几条连续的定位过程消息交互。 SLP 根据收到的位置测量信息计算位置信息并估计结果(SET-Assisted )或 SET根据 SLP提供的辅助数据计算出定位结果(SET-Based ) 。
G、 完成定位计算后 SLP向 SET发送 SUPL END消息, 指示不会再有 新的定位过程, 并且结束定位会话。 SET释放所有与本次会话相关的资 源。
H、 SLP向 SUPL Agent发送移动定位协议一标准立即定位应答 MLP SLIA消息, 返回定位结果。 SLP释放所有与本次会话相关的资源。
该技术方案虽然可以定位其它终端, 但是需要 SET在支持 SUPL协 议的同时, 还需要支持移动定位协议 MLP协议, 会增加终端的成本。 发明内容
本发明的目的在于提供一种定位移动终端的方法, 以使得在定位其 他终端时不需要支持多协议, 而降低终端成本。
根据本发明提供的一种定位移动终端的方法, 包括:
请求方终端向 SUPL定位平台发送定位请求消息, 该定位请求消 息中携带被定位用户的标识;
SUPL定位平台识别被定位用户的标识, 获取该被定位用户的位 置信息;
SUPL定位平台向请求方终端发送携带被定位用户的位置信息的 定位结束消息
该方法还包括:
请求方终端与 SUPL定位平台 SLP之间建立数据连接,以及被定位 用户与 SUPL定位平台 SLP之间建立数据连接的步骤。
被定位用户终端将自身支持定位的能力信息上 ·^艮给 SUPL定位平 台 .
所述 SUPL定位平台 >据该被定位用户终端的能力进行相应的定 位处理, 其中用户终端支持定位的能力包括该用户终端支持的定位方 法和相关的定位协议。
所述相关的定位协议包括无线资源位置业务协议 RRLP、 无线资源 控制协议 R C或 TIA- 801定位协议 IS- 801。 更适宜地, 在 SLP发送定位结束消息之后, 释放所有与本次定位 会话相关的资源。
所述被定位用户的标识为用于唯一标识终端身份的信息, 包括 IMSI 标识、 MSISDN标识。
如果所述定位过程失败,则所述 SLP向请求方终端发送携带失败信 息的定位结束消息。
所述携带被定位用户的位置信息的定位结束消息是 SUPL END 消息。
SLP识别被定位用户的标识, 根据被定位终端的能力判断出该终 端支持 SUPL定位过程时,发送 SUPL INIT消息对定位会话初始化以开 始相应的 SUPL定位过程。
SLP识别被定位用户的标识, 根据被定位终端的能力判断出该终 端不支持 SUPL定位过程时, 则向被定位用户的归属位置寄存器发送 消息请求该用户当前所在地的 VMSC/MSC地址、 或者 SGSN地址以 开始相应的 MT-LR定位过程。
如上所述, 本发明提供的定位移动终端的方法中, 请求方终端向 SUPL定位平台发送携带被定位用户的标识定位请求消息, SUPL定位平台 响应该请求, 识别被定位用户的标识, 获取该被定位用户的位置信息, 并将所获取的被定位用户的位置信息发送给请求方终端, 使支持 SUPL 的终端 (SET )可利用 SUPL协议实现自身定位的同时, 也可以定位 其它终端, 无需支持移动定位协议 MLP协议,从而可降低终端成本低。 附图说明 图 1为现有技术中的一种定位方法流程示意图;
图 2为现有技术中的另一种定位方法流程图;
图 3为用于实现移动终端定位的系统结构示意图;
图 4为本发明提供的移动终端的定位方法流程示意图;
图 5为才 据本发明的第一实施例的移动终端定位方法流程示意图; 图 6为根据本发明的第二实施例的移动终端定位方法流程示意图。 具体实施方式 图 3 为用于实现用于实现移动终端定位的系统结构图。 该系统由 SUPL Agent, 一个包含 LCS系统的网络以及 SET组成。 本发明的核心 思想是当 SET发起 SUPL START的时候, 在 START消息中, 携带需要 定位的其它终端的标识, SLP收到 START消息后, 识別消息中的其它终 端的标识, 针对被定位终端的能力进行相应的定位, 支持 SUPL的终端 SET 的能力包括 SET 支持的定位方法 (例如 SET-Assisted A-GPS, SET-BasedA-GPS )和相关的定位协议(例如 RRLP, RRC, IS-801 )。 在 支持 SUPL的终端 SET和 SUPL定位平台 H-SLP支持下, 移动终端可 提供所需的自身位置信息或网络时间信息。 定位完成后, 将定位结果通 过 SUPL END返回给请求定位的 SET。
图 4为本发明提供的移动终端的定位方法流程示意图,如图 4所示, 本发明所述方法包括如下步驟:
501、内置在 SET上的 SUPL Agent接收到运行在 SET上的应用程序 发起的定位请求。 如果 SET还没有连接到分组数据网上, 则将其连接 至分组数据网上, 或者 SET建立一个电路交换数据连接。
502、 SET上的 SUPL Agent发送 SUPL START消息开始与 SLP之间 的定位会话。 SUPL START消息至少包含了 session-id, QoS和被定位 用户的标识。 被定位用户的标识可以是 IMSI、 MSISDN或者其它可以 唯一标识一个终端的信息。
503、 SLP识別出被定位用户的标识,根据该用户的终端能力进行 相应的定位过程, 定位过程可以是 SUPL定位过程、 3GPP 03.71或 3GPP23.271定义的定位过程、 也可以是其它类型终端的定位过程, 并 获取到该用户的位置信息。
S04、 当定位计算完成后, SLP将向 SET发送 SUPL END消息, 通 知定位会话已经完成。 SLP将被定位用户的位置加入 SUPL END消息 中。如果定位失败, 则 SUPL END消息中携带了定位失败的信息。 SET 将释放所有与本次会话相关的资源。 SLP将释放所有与本次会话相关 的資源。 本发明的实施例 1
当 SET通过 SUPL流程主动向 SLP发起一个请求, 请求另一个 SET 的位置信息时, 其相应的处理流程如图 5所示:
S 11、内置在 SET上的 SUPL Agent接收到运行在 SET上的应用发起 的定位请求。 如果 SET还没有连接到分组数据网上, 则将其连接到分 組数据网上, 或者 SET将建立一个电路交换数据连接。
S12、 SET上的 SUPL Agent发送 SUPL START消息开始与 SLP之间 的定位会话。 SUPL START消息至少包含了 session-id, Qos, requestorld 和被定位用户的标识( IMSI, International Mobile Subscriber Identity )。
S13、 SLP识别出被定位用户的标识,根据被定位终端的能力判断 出该终端支持 SUPL, 则发送 SUPL INIT消息初始化定位会话, SUPL INIT消息可能由 WAP PUSH或 SMS触发方式承载。 SUPL INIT消息至 少包含了 session-id, SLP的地址和指定的定位方式。 SUPL INIT可能 还包含期望的 QoS。
另外, 可根据需要设定用户隐私保护, 相应地, SLP需要对该次 请求进行隐私鉴权, 即根据被请求定位用户终端 ID检查该用户是否有权 使用其请求的服务, 如: 查询其他终端位置。 如果隐私鉴权结果是需要 目的用户确认或通知目的用户, 则 SLP还将在 SUPL INIT消息中包含 Notification参数。
S 14、 当被定位终端 Target SET收到 SUPL INIT后, 可以将自己绑 定到分组数据网上(如果未绑定的话),或者建立电路交换数据连接。
S 15、 Target SET对 Notification进行鉴定并文出适当的响应。 Target SET根据在步驟 S13中收到的 SLP地址与 SLP建立数据连接,发送 SUPL POS INIT消息开始与 SLP的定位会话。 SUPL POS INIT消息至少包含 了 session-id, SET能力和位置标识 (lid ) 。 SET能力包含了 SET支持 的定位方法 (例如 SET- Assisted A-GPS, SET- Based A-GPS )和相关的 定位协议(例如 RRLP, RRC, IS-801 ) 。 Target SET可能会提供与当 前所使用的无线技术相关的 NMR (例如 GSM网为 TA, RXLEV )。 在 Target SET和 SLP支持的情况下, SET可能提供所需的自身位置或网络 时间信息。 Target SET在 SUPL POS INIT消息中可能会指定协助数据 Requested Assistance Data参数。
S16、 (可选步骤)依据 SUPL POS INIT消息中包含的 Target SET 支持的 posmethod, SLP确定采用的 posmethod。如果指定了 posmethod, 则 SLP采用从 SUPL POS INIT中获得的支持的定位协议(例如 RRLP, RRC, TIA-801 ) 。 Target SET与 SLP之间可能会有几条连续的定位过 程消息交互。 SLP根据收到的位置测量信息计算位置信息并估计结果 ( SET-Assisted )或 Target SET根据 SLP提供的辅助数据计算出定位结 果 ( SET-Based ) 。
S17、 完成定位计算后 SLP向 Target SET发送 SUPL END消息, 指 示不会再有新的定位过程, 并且结束和 Target SET定位会话。 Target
SET释放所有与本次会话相关的资源。
S18、 SLP将向请求方终端 Original SET发送 SUPL END消息, 通知定位会话已经完成。 SLP把被定位用户的位置加入 SUPL END消 息中。 Original SET将释放所有与本次会话相关的资源。 SLP将释放 所有与本次会话相关的资源。
本发明的实施例 2
在实际 LCS应用中, SET主动发起 SUPL会话, 向 SLP请求另 外一个终端的位置, 根据本发明, 相应的处理流程如图 6所示: S21、 内置在 SET上的 SUPL Agent接收到运行在 SET上的应用 程序发起的定位请求。如果 SET还没有连接到分组数据网上, 则将其 连接至分组数据网上, 或者 SET将建立一个电路交换数据连接。
522、 SET上的 SUPL Agent发送 SUPL START消息开始与 SLP 之间的定位会话。 SUPL START 消息至少包含了 session-id、 Qos、 requestorld和被定位用户的标识 ( MSISDN ) 。
523、 SLP 识别出被定位用户的标识, 根据被定位终端的能力判 断出该终端不支持 SUPL, 是个普通的 UE终端(2G网络中也称其为 MS ),则开始 3GPP定义的终端中止-定位请求 MT-LR定位流程。 SLP 向被定位用户的 HLR发送位置业务路由消息 SRI for LCS ( Send Routing Info for LCS ) , 请求用户当前所在地的拜访地移动交换中心 / 移动交换中心 VMSC/MSC Server 或者通用分组无线业务 GPRS (General Packet Radio Service)支持节点 SGSN(Serving GPRS Support Node)的地址。
S24、 HLR向 SLP返回 SRI for LCS响应消息, 响应消息中携带 了被定位终端当前所在地的 VMSC/MSC Server或者 SGSN的地址。
525、 SLP根据得到的地址, 向 VMSC/MSC Server或者 SGSN发 起用户位置请求 PSL ( Provide Subscriber Location ) 消息。
526、 VMSC/MSC Server或者 SGSN和被定位终端进行交互, 获 取终端的位置信息。
527、 VMSC/MSC Server或者 SGSN通过 PSL响应消息向 SLP 返回被定位终端的位置信息。
528、 SLP将向请求方终端 Original SET发送 SUPL END消息, 通知定位会话已经完成。 SLP把被定位用户的位置加入 SUPL END消 息中。 Original SET将释放所有与本次会话相关的资源。 SLP将释放 所有与本次会话相关的资源。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱 离本发明的精神和范围。 这样, 倘若对本发明的这些修改和变型属于本 发明权利要求及其等同技术的范围之内, 则本发明包含这些改动和变型 在内。

Claims

权 利 要 求
1、 一种定位移动终端的方法, 其特征在于, 包括:
请求方终端向 SUPL定位平台发送定位请求消息, 该定位请求消 息中携带被定位用户的标识;
SUPL定位平台识别被定位用户的标识, 获取该被定位用户的位 置信息;
SUPL定位平台向请求方终端发送携带被定位用户的位置信息的 定位结束消息。
2、 如权利要求 1所述的方法, 其特征在于, 该方法还包括: 请求方终端与 SUPL定位平台 SLP之间建立数据连接, 以及被定位 用户与 SUPL定位平台 SLP之间建立数据连接的步骤。
3、 如权利要求 1所述的定位移动终端的方法, 其特征在于, 该方法 进一步包括:
被定位用户终端将自身支持定位的能力信息上报给 SUPL定位平 台;
所述 SUPL定位平台根据该被定位用户终端的能力信息进行相应 的定位处理; 其中所述用户终端支持定位的能力包括该用户终端支持 的定位方法和相关的定位协议。
4、 如权利要求 3所述的定位移动终端的方法, 其特征在于, 所述相关的定位协议包括无线资源位置业务协议 RRLP、 无线资源 控制协议 RRC或 TIA-801定位协议 IS-801。
5、 如权利要求 1所述的定位移动终端的方法, 其特征在于, 该方法 还包括:
在 SLP发送定位结束消息之后, 释放所有与本次定位会话相关的 资源。
6、 如权利要求 1所述的定位移动终端的方法, 其特征在于, 所述被 定位用户的标识为用于唯一标识终端身份的信息, 包括 IMSI标识、 MSISDN标识。
7、 如权利要求 1所述的定位移动终端的方法, 其特征在于, 如果所 述定位过程失败,则所述 SLP向请求方终端发送携带失败信息的定位结 束消息。
8、 如权利要求 1所述的定位移动终端的方法, 其特征在于, 所述 携带被定位用户的位置信息的定位结束消息是 SUPL END消息。
9、 如权利要求 1或 3所述的定位移动终端的方法, 其特征在于, SLP识别被定位用户的标识, 根据被定位终端的能力判断出该终端支 持 SUPL定位过程时,发送 SUPL INIT消息对定位会话初始化以开始相 应的 SUPL定位过程。
10、 如权利要求 1或 3所述的定位移动终端的方法, 其特征在于,
SLP识别被定位用户的标识, 根据被定位终端的能力判断出该终端不 支持 SUPL定位过程时, 则向被定位用户的归属位置寄存器发送消息 请求该用户当前所在地的 VMSC/MSC地址、 或者 SGSN地址以开始 相应的 MT-LR定位过程。
PCT/CN2006/001488 2005-06-29 2006-06-28 Procede permettant de localiser un terminal mobile WO2007000117A1 (fr)

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