WO2007016859A1 - Procédé de réalisation d'un service de localisation de suivi dans un système de communication mobile - Google Patents
Procédé de réalisation d'un service de localisation de suivi dans un système de communication mobile Download PDFInfo
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- WO2007016859A1 WO2007016859A1 PCT/CN2006/001935 CN2006001935W WO2007016859A1 WO 2007016859 A1 WO2007016859 A1 WO 2007016859A1 CN 2006001935 W CN2006001935 W CN 2006001935W WO 2007016859 A1 WO2007016859 A1 WO 2007016859A1
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- Prior art keywords
- positioning
- tracking
- service
- user equipment
- location
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
Definitions
- the present invention relates to location services in a mobile communication system and, more particularly, to a method of implementing tracking and tracking services in the system.
- the main applications of the mobile positioning service include: emergency call location service for user security; tracking and positioning application; personal location service (such as traffic, accommodation and other service industry information query); intelligent transportation positioning; wireless network system design and Resource management; billing for wireless network systems (determining communication charges for certain locations based on call rate), etc.
- the tracking and positioning service of the present invention refers to a positioning service that continuously obtains the location of the located user, such as a real-time tracking navigation and positioning service, a non-real-time tracking period positioning service, and the like.
- the mobile user determines the geographic location (ie, based on the user equipment UE) by measuring the wireless signal and the information of the surrounding cell base station, and then reporting it to the network side;
- the network side of the wireless network determines the geographic location of the mobile user (ie, the UE assists) by measuring the wireless signal and the base station information of the surrounding cells.
- the Third Generation Mobile Communication Project Organization (3GPP, The 3rd Generation Partnership Project) follows the description of the positioning method of the Global System for Mobile Communications (GSM) in the description of the positioning method of WCDMA, and has made certain improvements. .
- GSM Global System for Mobile Communications
- WCDMA Global System for Mobile Communications
- ODOA observed time difference of arrival
- IPD Idle Period of Down Link
- AGPS Assisted Global Positioning System
- the event types for location requests in the 3GPP protocol now define two categories: Immediate location request and extension Late positioning request.
- the immediate positioning request needs to access the network side radio network controller (RNC) to receive the positioning request forwarded by the core network (CN, Core Network), and then determine the positioning method to immediately locate the UE, and obtain the positioning result. Sent to the CN, then the CN is handed over to the location service client (LCS client).
- RNC network side radio network controller
- UE User Equipment
- SA Service Area
- the events in the report request type corresponding to the 3GPP Iu interface protocol are: direct report (direct) and change of service area.
- the technical problem to be solved by the present invention is to provide a method for implementing a tracking and positioning service in a mobile communication system, which makes the tracking and positioning service simple and responsive.
- the present invention provides a method for implementing a tracking and positioning service in a mobile communication system, which includes the following steps:
- the core network sends a location request message to the radio network controller, requesting to perform a tracking and positioning service of a certain user;
- the radio network controller identifies that the request is for tracking the positioning service, and sends a positioning measurement control message to the corresponding user equipment, and requests the tracking and positioning service measurement according to the specified positioning type; (c) after receiving the measurement control message, the user equipment determines a period of tracking and positioning, performs positioning processing every other period, and reports the result to the radio network controller;
- the foregoing implementation method may further have the following features: further comprising the following steps: in the process of performing the tracking and positioning service, when the service needs to be terminated, the core network sends a positioning termination request message to the wireless network control Device
- the radio network controller After receiving the location termination request message, the radio network controller notifies the user equipment to terminate the measurement of the tracking and positioning service, and delete local information and resources related to the service;
- the user equipment After receiving the message requesting termination of the measurement, the user equipment terminates the positioning measurement and reporting, and deletes the locally stored information related to the current positioning.
- the foregoing implementation method may further have the following features: the positioning type specified by the radio network controller is based on the positioning of the user equipment, and the user equipment reports the positioning measurement and calculates its own position, and reports the wireless. After receiving the location information of the user equipment, the network controller directly reports the core network.
- the foregoing implementation method may further have the following features: the positioning type specified by the radio network controller is a positioning assisted by the user equipment, and the user equipment reports the positioning measurement every time, the radio network controller according to the After the measurement result calculates the location of the user equipment, it is uploaded to the core network.
- the positioning request message and the positioning measurement control message further include an option of “tracking positioning service period”, when the item is configured with a period value, the user equipment The period value is used as the period for tracking the positioning service. Otherwise, the user equipment uses the default value as the period for tracking the positioning service.
- the positioning request message further includes information about required positioning accuracy
- the wireless network controller first selects a positioning method according to the positioning accuracy. ', and then determine whether the positioning method requires user equipment to participate, if necessary, then send a positioning measurement control message to the corresponding user equipment, by the user equipment The selected positioning method is used for positioning measurement.
- the foregoing implementation method may further have the following feature: when the core network requests the radio network controller to perform tracking and positioning services and terminate tracking and positioning, the event item of the request type is specified as tracking in the positioning request message. Positioning and terminating tracking positioning is achieved.
- the foregoing implementation method may further have the following features: when the wireless network controller requests the user equipment to perform tracking and positioning service measurement, the positioning service is added by positioning the UE in the positioning measurement control message.
- the type is specified as "the tracking business of the periodic report”.
- the present invention further provides a method for implementing a tracking and positioning service in a mobile communication system, which includes the following steps:
- the core network sends a location request message to the radio network controller, requests to perform a tracking and positioning service of a certain user, and includes information of required positioning accuracy;
- the radio network controller identifies that the request is for tracking the positioning service, and selects a positioning method according to the positioning precision.
- the wireless The network controller locally sets the period of the tracking service locally, performs a positioning calculation on the user according to the selected positioning method every other period, and obtains the obtained positioning result on the core network.
- the positioning request message further includes an option of “tracking and positioning service period”, and when the item is configured with a period value, the radio network controller uses the period value as This time, the period of the tracking service is tracked. Otherwise, the default value is used as the period of the current positioning service.
- the method of the present invention adds an event type of a positioning request: a tracking report, and the CN sends a positioning request to the RNC to continuously receive the location information of the tracking and positioning, thereby realizing the implementation of the existing 3GPP protocol flow.
- Figure 1 is a block diagram of the positioning service in WCDMA.
- FIG. 2 is a schematic diagram showing the overall flow of a general positioning request (CS_MT_LR) network positioning message of a mobile station termination type.
- CS_MT_LR general positioning request
- FIG. 3 is a flowchart of normal processing of tracking and positioning services according to an embodiment of the present invention.
- FIG. 4 is a schematic flowchart of tracking termination of positioning according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of message flow of a tracking process according to an embodiment of the present invention. Preferred embodiment of the invention
- FIG. 1 is a structural block diagram of a positioning service in a WCDMA system, showing a positioning service client (LCS client), a gateway mobile positioning center (GMLC), a radio network controller (RNC), and a Node B (Node B) related to the positioning service. And devices such as user equipment (UE) and their connection relationship.
- LCS client positioning service client
- GMLC gateway mobile positioning center
- RNC radio network controller
- Node B Node B related to the positioning service.
- devices such as user equipment (UE) and their connection relationship.
- FIG. 2 shows the network positioning message flow of the mobile station termination type general positioning request (CS_MT_LR), which generally describes a positioning process, including the following steps:
- Step 201 The positioning service client (LCS client) initiates a location request, and notifies the gateway mobile location center (GMLC, Gateway Mobile Location Centre);
- GMLC Gateway Mobile Location Centre
- Step 202 The GMLC sends a Provide Subscriber Location message to the Mobile Services Switching Center (MSC) or a General Packet Radio System (GPRS) Served GPRS Support Node (SGSN). , informing them to perform a positioning;
- MSC Mobile Services Switching Center
- GPRS General Packet Radio System
- SGSN General Packet Radio System Support Node
- Step 203 The MSC or the SGSN interacts with the UE, and the circuit switching (CS, Circuit Switched) domain needs to complete the paging and authentication function, and the packet switching (PS, Packet Switch) domain needs to complete the paging and security process;
- CS Circuit Switched
- PS Packet Switch
- Step 204 the MSC or the SGSN sends a location service location notification (LCS Location) Notification) message to the UE;
- LCS Location location service location notification
- Step 205 the UE returns a location service location notification return (LCS Location Notification Return) message to the MSC or SGSN;
- LCS Location Notification Return location service location notification return
- Step 206 After receiving the location service location notification return message, the MSC or the SGSN sends a location request (Location Request) message to the RNC, requesting to locate the UE.
- a location request Location Request
- Step 207 After receiving the positioning request of the MSC or the SGSN, the RNC starts to perform an independent positioning process on the access network side;
- Step 208 the RNC sends a Location Report to the MSC or the SGSN;
- Step 209 the MSC or the SGSN sends a Provide Subscriber Location ack message to the GMLC;
- Step 210 The GMLC sends the positioning result to the LCS Client through the mobile station lower request process.
- steps 206-208 which are for the mobile station to initiate (MO) tracking and positioning services. In the end, the two are the same.
- FIG. 3 is a flowchart of an implementation of a tracking and positioning service according to an embodiment of the present invention, which mainly relates to a positioning request message of an Iu interface, a positioning measurement control message of a Uu interface, and processing by an RNC and a UE.
- Step 301 The CN (such as the MSC or the SGSN) sends a location request message to the R C, requesting location location of the tracking service of the user;
- the contents of the location request message are as follows:
- Precision code The encoding corresponding to the positioning accuracy is optional.
- the LCS client type See 3GPP TS25.413 The table above lists the cell descriptions that need to be added to the tracking service. The unlisted parts are not explicitly stated in the 3GPP protocol.
- the event item in the request type adds two types of events, namely, tracking positioning and stopping tracking positioning, with respect to the existing positioning request message, where the event type needs to be set to "3", that is, the positioning service is tracked.
- a message is also added to the message to track the locating service period.
- the cell is optional when the event is tracking and locating the service, and does not exist in other event types.
- the period of the tracking service is set in the message, the UE The positioning measurement is performed according to the period. If not set, the UE performs measurement according to the default period value. By setting the period value, real-time (shorter period, such as "second") and non-real-time (longer period) positioning tracking can be realized.
- this embodiment assumes that the positioning accuracy required in the message is a higher precision positioning, and the AGPS or OTDOA positioning method should be adopted at this time, and these methods require the participation of the UE in the positioning process.
- Step 302 After receiving the positioning request message, the RNC stores related information, and determines whether to track the positioning service according to the event item of the request type in the message. If yes, go to step 303; otherwise, according to the normal positioning service processing, it is irrelevant to the present invention. Not described here;
- the RNC performs some initialization processing before receiving the request location, including the acquisition and storage of the auxiliary data.
- Step 303 the RC determines, according to the service shield quantity (QoS) information of the request message (including the positioning accuracy, the positioning response time, and the like) and the capability information of the terminal and the access network device, the positioning method (AGPS or OTDOA) and the positioning type (ie, UE-based positioning or UE-assisted positioning);
- Step 304 The RC sends a positioning measurement control message to the UE of the user, and requests the positioning measurement of the tracking service type, where the message includes an identifier with the selected positioning method and the positioning type.
- the service type is as follows:
- the positioning service type is a tracking service of the periodic report, and the period value is also optional.
- Step 305 the R C waits to receive the positioning measurement report message from the UE (the processing process of the UE is as shown in step 315 317 );
- Step 306 After receiving the positioning measurement report message of the UE, if the RC has a positioning result, the RP fills the result into the positioning report message and sends the result to the CN. If the measurement result is the measurement result, the positioning result is calculated first. That is, the location of the UE, and the result is sent to the CN through the location 4 report message, and the process returns to step 305.
- the processing flow on the UE side is as follows:
- Step 315 After receiving the positioning measurement control message, the UE analyzes the content of the cell in the message, and learns that the request is the tracking and positioning service measurement. If the period of the tracking and positioning service is specified in the message, the period of the positioning timer is set to the period value. Otherwise, the period of setting the positioning timer is the default period of the tracking and positioning service preset by the UE;
- Step 316 The UE performs a positioning measurement according to the specified positioning method and the positioning type, or locates the measurement and calculation process, and then sends a positioning measurement report message to the RNC, and resets the positioning timer to restart the timing.
- the report message sent to the RNC carries the positioning result, that is, the calculated location information of the UE; if the specified positioning type is UE Assisted, it is sent to the RNC.
- the report message contains measurement results.
- Step 317 the UE returns to step 316 when the positioning timer expires
- the period measurement and reporting of the UE and the reporting process of the RNC to the CN are always present during the tracking and positioning service until the CN's location termination request message is received.
- FIG. 4 is a flow chart of processing when a tracking service needs to be terminated in a tracking service.
- the method includes the following steps: Step 401: In the tracking service, the CN sends a positioning termination request message to the RNC, and the RNC may receive the message at any time during the normal positioning process.
- Step 402 After receiving the location termination request message, the RNC determines that there is a local tracking service request termination.
- Step 404 After receiving the message requesting termination of the measurement, the UE terminates the positioning timer, ends the positioning measurement and the uploading, deletes the locally stored information related to the current positioning, and ends.
- FIG. 5 illustrates the message flow of the tracking process and the local processing of each device according to another illustrated method, including the process of tracking the normal processing of the positioning service and the process of terminating the tracking, the content of which is in FIG. 3 and FIG. It has been reflected in the description and will not be repeated here.
- the method of the invention can conveniently implement the processing of the tracking period service in the existing location service processing flow, and make up for the defects that the existing 3GPP protocol has incomplete definition of the event in the location request type and complicated process implementation, and at the same time makes the tracking service positioning.
- the response time is faster.
- the technical solution of the present invention can also be modified and modified, for example: If the positioning request message of the tracking type sent by the CN to the RNC only requires low-precision positioning, after receiving the message, the RNC decides to select the Cell ID positioning mode, that is, when the positioning process does not require UE participation, the internal positioning request message is given.
- the RNC may also directly send the positioning measurement control message to the UE without performing the selection of the positioning method.
- the present invention is also applicable to a TD-SCDMA communication system.
- the present invention discloses a method for implementing a tracking and positioning service in a mobile communication system, which is used for implementing a tracking and positioning service in a mobile communication system, in view of the incompleteness of the event definition and the complexity of the process implementation in the location request type of the existing 3GPP protocol. .
- the method of the invention adds an event type of the positioning request: the tracking report, the CN sends the positioning request to the RNC, and can continuously receive the location information of the tracking and positioning, thereby realizing the implementation of the existing 3GPP protocol flow, without the Iu interface Frequent message interaction with Uu interface minimizes the complexity of message processing, makes it easier to implement, clearer processing, and makes the response time of tracking service positioning more rapid.
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Description
移动通信系统中跟踪定位业备的实现方法
技术领域
本发明涉及移动通信系统中的定位业务, 更具体地, 涉及在该系统中实 现跟踪定位业务的方法。
背景技术
无线网络系统中的移动定位业务越来越受到广泛的关注。移动定位业务 主要的应用包括有: 用于用户安全的紧急呼叫定位业务; 跟踪定位应用; 个 人定位服务(例如交通、住宿等服务行业信息的查询); 智能交通运输定位; 无线网络系统的设计和资源管理; 用于无线网络系统的计费(根据呼叫率确 定某些位置的通信费用)等。本发明所述的跟踪定位业务是指持续获得被定 位用户位置的一种定位业务,例如实时跟踪导航定位业务、 非实时跟踪周期 定位业务等。 现在无线网络系统中的定位实现通常有两种类型:一类是移动用户通过 无线信号的测量和周围小区基站的信息自主确定地理位置(即基于用户设备 UE的情况) , 再上报给网络侧; 一类是由无线网络的网络侧通过无线信号 的测量和周围小区的基站信息来最终确定移动用户的地理位置(即 UE辅助 的情况) 。
第三代移动通信项目組织( 3GPP , The 3rd Generation Partnership Project ) 对 WCDMA 的定位方法描述中沿袭了全球移动通信系统 (GSM, Global System for Mobile Communications ) 的定位方法部分内容, 并文了一定的改 进。 3GPP中对 WCDMA规定的定位方法有三种: 基于小区标识( Cell Id ) 的定位方法; 可能包含网络辅助配置空闲周期 (IPDL, Idle Period of Down Link ) 的观测到的到达时间差 ( OTDOA, Observed Time Difference Of Arrived ) 定位方法; 网络辅助的全球定位系统 (AGPS , Assisted Global Positioning System )方法。
3GPP协议中定位请求的事件类型现在定义了两类: 立即定位请求和延
迟定位请求。
立即定位请求需要接入网侧无线网络控制器 ( RNC , Radio Network Controller )在收到核心网(CN, Core Network )转发来的定位请求之后, 确 定定位方法对 UE立即进行定位, 得到定位结果并发送给 CN, 然后 CN转 交给定位业务客户端 (LCS client ) 。
延迟定位现阶段定义的延迟事件有两类: 用户设备 (UE, User Equipment )可用 (临时不可用后发生、 或者第一次接入网络时发生)定位 结果上报和区域(现在 3GPP协议定义的有业务区 (SA, Service Area ) ) 变化时定位结果上报。
对应到 3GPP Iu接口协议 ( RNC和 CN之间的接口)上的报告请求类型 中的事件就是: 直接报告 ( direct )和业务区变化时报告 ( Change of service area ) 。
由于现阶段 3GPP协议只定义了两类报告事件:直接报告和事件触发(业 务区变化事件发生)报告, 那么对于跟踪业务只能采用直接报告方式, 由 CN频繁发送 direct方式的定位请求消息给 RNC进行定位。这种方式一方面 增加了消息量, 使得一次跟踪定位在接入网和 UE被分作独立的多次定位处 理, 实现起来十分复杂, 响应也不够迅速。
发明内容
本发明要解决的技术问题是提供了一种移动通信系统中跟踪定位业务 的实现方法, 使得跟踪定位业务的实现简单, 响应迅速。
为了解决上述技术问题,本发明提供了一种移动通信系统中跟踪定位业 务的实现方法, 包括以下步骤:
( a )核心网发送定位请求消息给无线网络控制器, 请求进行某用户的 跟踪定位业务;
( b )所述无线网络控制器收到所述请求消息后, 识别出是跟踪定位业 务的请求, 向相应的用户设备发送定位测量控制消息,要求其按指定的定位 类型进行跟踪定位业务测量;
( c )所述用户设备收到所述测量控制消息后, 确定跟踪定位的周期, 每隔一个周期执行一次定位处理, 并向所述无线网络控制器上报结果;
( d )所述无线网絡控制器每次收到所述用户设备的上报后, 得到所述 用户设备的位置信息, 并作为定位结果上 ^艮所述核心网。
进一步地, 上述实现方法还可具有以下特点: 还包括以下步骤: 在所述跟踪定位业务进行的过程中, 当需要终止该业务时, 所述核心网 发送定位终止请求消息给所述无线网络控制器;
所述无线网络控制器收到定位终止请求消息后,通知所述用户设备终止 此次跟踪定位业务的测量, 并删除本地与该业务相关的信息和资源;
所述用户设备收到要求其终止测量的消息后, 终止定位测量和上报, 删 除本地存储的与本次定位相关的信息。
进一步地, 上述实现方法还可具有以下特点: 所述无线网络控制器指定 的定位类型是基于用户设备的定位,所述用户设备每次完成定位测量并计算 出自己的位置后上报,所述无线网络控制器收到所述用户设备的位置信息后 直接上报所述核心网。
进一步地,上述实现方法还可具有以下特点: 所述无线网络控制器指定 的定位类型是用户设备辅助的定位,所述用户设备每次完成定位测量后即上 报, 所述无线网络控制器根据该测量结果计算出所述用户设备的位置后,再 上 ^艮到所述核心网。
进一步地, 上述实现方法还可具有以下特点: 所述定位请求消息和定位 测量控制消息中还包含 "跟踪定位业务周期" 的可选项, 当该项配置有周期 值时, 所述用户设备将该周期值作为此次跟踪定位业务的周期, 否则, 用户 设备将预设的缺省值作为此次跟踪定位业务的周期。
进一步地, 上述实现方法还可具有以下特点: 所述定位请求消息中还包 含有所要求的定位精度的信息, 所述步骤(b ) 中, 无线网絡控制器先根据 该定位精度选择一个定位方法', 然后判断该定位方法是否需要用户设备参 与, 如需要时, 再向相应的用户设备发送定位测量控制消息, 由用户设备按
选择的定位方法进行定位测量。
进一步地, 上述实现方法还可具有以下特点: 所述核心网请求所述无线 网络控制器进行跟踪定位业务和终止跟踪定位时,是通过将所迷定位请求消 息中请求类型的事件项指定为跟踪定位和终止跟踪定位来实现的。
进一步地, 上述实现方法还可具有以下特点: 所述无线网落控制器请求 所述用户设备进行跟踪定位业务测量时, 是通过将定位测量控制消息中 UE 定位报告量信元下增加的定位业务类型指定为 "周期报告的跟踪业务"来实 现的。
为了解决上述技术问题,本发明又提供了一种移动通信系统中跟踪定位 业务的实现方法, 包括以下步骤:
( A )核心网发送定位请求消息给无线网络控制器, 请求进行某用户的 跟踪定位业务, 并包含要求的定位精度的信息;
( B ) 所述无线网络控制器收到所述请求消息后, 识别出是跟踪定位业 务的请求, 并根据所述定位精度选择一个定位方法, 当该定位方法不需用户 设备参与时,该无线网络控制器在本地设置此次跟踪业务的周期,每隔一个 周期按选择的定位方法对所述用户进行一次定位计算,并将得到的定位结果 上^ =艮所迷核心网。
进一步地, 上述实现方法还可具有以下特点: 所述定位请求消息中还包 含 "跟踪定位业务周期" 的可选项, 当该项配置有周期值时, 所述无线网絡 控制器将该周期值作为此次跟踪定位业务的周期, 否则, 将预设的缺省值作 为此次^踪定位业务的周期。
由上可知,本发明方法增加了一种定位请求的事件类型:跟踪报告, CN 发送一次定位请求给 RNC就可以后续不断收到跟踪定位的位置信息, 从而 筒化了现有 3GPP协议流程的实现,无需 Iu接口和 Uu接口频繁的消息交互, 把消息处理的复杂度降到最低, 实现更方便, 处理更清晰, 同时使得跟踪业 务定位的响应时间更迅速。
附图概述
图 1是 WCDMA中定位业务的结构框图。
图 2是移动台终止类型的一般定位请求(CS—MT— LR )网络定位消息的 总体流程示意图。
图 3是本发明实施例跟踪定位业务的正常处理流程图。
图 4是本发明实施例跟踪定位终止的流程示意图。
图 5是本发明实施例跟踪处理的消息流示意图。 本发明的较佳实施方式
下面结合附图对本实施例跟踪定位业务的实现方法做详细说明。
图 1是 WCDMA系统中定位业务的结构框图, 示出了与定位业务相关 的定位业务客户端 ( LCS client ) 、 网关移动定位中心 ( GMLC ) 、 无线网 络控制器(RNC ) 、 节点 B ( Node B )和用户设备 ( UE )等设备及其连接 关系。
图 2示出了移动台终止类型的一般定位请求(CS— MT— LR)的网络定位 消息流, 从总体上描述了一次定位过程, 包括以下步骤:
步骤 201, 定位业务客户端( LCS client )发起定位请求, 通知网关移动 定位中心 ( GMLC, Gateway Mobile Location Centre ) ;
步骤 202, GMLC发送提供用户位置( Provide Subscriber Location ) 消 息给移动交换中心(MSC, Mobile Services Switching Center )或通用分组无 线系统( GPRS, General Packet Radio System )业务支持节点( SGSN, Serving GPRS Support Node ) , 通知其进行一次定位;
步骤 203, MSC或 SGSN和 UE交互, 电路交换(CS, Circuit Switched ) 域需要完成寻呼和鉴权功能, 分组交换(PS, Packet Switch )域需要完成寻 呼、 安全过程;
步骤 204 , MSC 或 SGSN发送位置业务定位通知 ( LCS Location
Notification ) 消息给 UE;
步骤 205, UE返回位置业务定位通知返回 (LCS Location Notification Return ) 消息到 MSC或 SGSN;
步骤 206, 收到位置业务定位通知返回消息后, MSC或 SGSN向 RNC 发送定位请求(Location Request ) 消息, 请求对 UE进行定位;
步骤 207, RNC收到 MSC或 SGSN的定位请求后, 开始执行接入网侧 独立的定位过程;
步骤 208, RNC把定位报告 ( Location Report )发送给 MSC或 SGSN; 步驟 209, MSC或 SGSN发送提供用户位置响应 (Provide Subscriber Location ack) 消息给 GMLC;
步骤 210, GMLC 通过移动台下位请求过程把定位结果发送给 LCS Client。
上述各步骤描述了移动台终止(MT-LR )的一次正常定位过程的完整流 程, 本发明所作改进密切相关的过程是步骤 206~208, 这几步对于移动台发 起(MO ) 的跟踪定位业务来说, 两者是相同的。
图 3是本发明实施例跟踪定位业务实现的流程图, 主要涉及 Iu接口的 定位请求消息、 Uu接口的定位测量控制消息以及 RNC、 UE的处理。
步骤 301, CN (如 MSC或者 SGSN )发送定位请求消息给 R C, 请求 进行某用户的跟踪业务的位置定位;
该定位请求消息的内容如下表所示:
定位请求消息 信元 描述 是否必须存在 内容
请求的类型
事件 取值类型: 必选
1直接报告,
2业务区变化时报告,
3跟踪定位,
4停止直接报告,
5停止业务区变化时报告
停止跟踪定位
报告区域 取值类型: 必选
1地理区域
2业务区域
精度码 定位精度对应的编码 可选
参见 3GPP TS25.413
跟踪定位业务的周期 周期值设定: 仅事件为跟踪 单位: 秒 业务时可选 垂直精度码 参见 3GPP TS25.413
响应时间 参见 3GPP TS25.413
定位优先级 参见 3GPP TS25.413
LCS client类型 参见 3GPP TS25.413 上表列出了跟踪业务需要添加的信元描述, 未列出部分在 3GPP协议中 巳有明确说明。其中,请求类型中的事件项相对于现有的定位请求消息增加 了跟踪定位和停止跟踪定位两类事件, 该处需将事件类型设置为 "3" , 即 跟踪定位业务。
消息中还增加了跟踪定位业务周期的信元,该信元在事件为跟踪定位业 务时可选,在其它事件类型时一定不存在,如果在该消息中设置了跟踪定位 业务的周期, 则 UE按该周期进行定位测量, 如果没有设置, 则 UE按缺省 的周期值进行测量。通过周期值的设置,可以实现实时(周期较短,如以 "秒" 记)和非实时(周期较长) 的定位跟踪。
另外, 本实施例假定消息中要求的定位精度是较高精度的定位, 此时应 采用 AGPS或 OTDOA定位方法, 这些方法在定位过程中需要 UE的参与。
步骤 302, RNC收到该定位请求消息后, 存储相关信息, 根据消息中请 求类型的事件项判断是否跟踪定位业务, 如果是, 执行步骤 303; 否则, 按 照通常定位业务处理, 与本发明无关, 这里不作描述;
另外, RNC在收到请求定位之前会进行一些初始化处理, 包括辅助数 据的获取存储等。
步骤 303, R C根据请求消息的服务盾量( QoS )信息(包括定位精度、 定位响应时间等) 以及终端和接入网设备的能力信息确定采用的定位方法 ( AGPS或 OTDOA )和定位类型 (即基于 UE的定位还是 UE辅助的定位 );
步骤 304, R C发送定位测量控制消息给所述用户的 UE, 请求其进行 跟踪业务类型的定位测量, 消息中含带所选定位方法和定位类型的标识; 该定位测量控制消息中的信息参见 3GPP TS25.331 , 其中的 UE定位报 告量(UE positioning reporting quantity )信元下需新增 '定位业务类型, ( service type ) , 业务类型的具体描述如下表所示:
即在定位测量控制消息中指明了定位业务类型是 '周期报告的跟踪业 务, , 该周期值也是可选的。
步骤 305, R C等待接收来自 UE的定位测量报告消息 (UE的处理过 程见步骤 315 317 ) ;
步骤 306, R C收到 UE的定位测量报告消息后, 如杲消息中有定位结 果, 则将该结果填入定位报告消息发送给 CN, 如果消息中是测量结果, 则 先计算得到定位结杲, 即 UE的位置, 再将该结果通过定位 4艮告消息发送给 CN, 返回步驟 305。
UE侧的处理流程如下:
步骤 315, UE收到定位测量控制消息后, 分析消息中信元内容, 得知 请求的是跟踪定位业务测量, 如果消息中指定了跟踪定位业务的周期, 则设 置定位计时器的周期为该周期值, 否则设置定位计时器的周期为 UE预先设 置的缺省的跟踪定位业务的周期值;
步骤 316, UE按照指定的定位方法和定位类型执行一次定位测量, 或 者定位测量和计算过程, 然后发送定位测量报告消息给 RNC, 同时将定位 计时器复位, 重新开始计时;
在该步骤中, 如果指定的定位类型是 UE based, 则发送给 RNC的报告 消息中带有定位结果, 即计算出的 UE的位置信息; 如果指定的定位类型是 UE Assisted, 则发送给 RNC的报告消息中带有测量结果。
步骤 317, UE在定位计时器定时到时, 返回步骤 316;
上述 UE的周期测量和上报, 以及 RNC向 CN的上报过程在跟踪定位 业务持续期间一直存在, 直到收到 CN的定位终止请求消息。
图 4是在一个跟踪业务进行中, 需要终止该跟踪业务时的处理流程图。 包括以下步骤: 步驟 401 , 在跟踪业务进行中, CN发送定位终止请求消息给 RNC, 在 正常定位过程的任何时刻, RNC都有可能收到该消息;
步骤 402, RNC收到定位终止请求消息后, 判断出本地存在请求终止的 跟踪业务; 步骤 403, RNC发送定位测量控制消息 (release )给与该业务相关的 UE, 要求 UE终止跟踪定位业务的测量, 同时, RNC删除本地与该跟踪定 位相关的信息和占用资源, 结束本次跟踪定位;
步骤 404, 该 UE收到要求终止测量的消息后, 终止定位定时器, 结束 定位测量和上艮, 删除本地存储的与本次定位相关的信息, 结束。
图 5 以另一种图示方法描述了本实施例跟踪处理的消息流和各设备的 本地处理, 包括跟踪定位业务的正常处理和跟踪定位终止的过程, 其内容在 对图 3和图 4的说明中已得到体现, 在此不再重复。
采用本发明方法可以方便地在现有位置业务处理流程中实现跟踪周期 业务的处理, 弥补了现有 3GPP协议对定位请求类型中事件定义不完备和流 程实现复杂的缺陷, 同时使得跟踪业务定位的响应时间更迅速。
在上述实施例的基础上, 本发明的技术方案还可以做一些变换和修改, 例如:
如果 CN发送给 RNC的跟踪类型的定位请求消息中只要求进行低精度 的定位, RNC收到消息后, 决定选择 Cell ID定位方式, 即定位过程无需 UE参与时, 在内部按定位请求消息中给定的周期值或在本地预先设置的缺 省周期值设置该业务的跟踪周期定时, 周期定时到达时, 按 Cell ID定位方 法进行定位计算, 然后向 CN报告定位结果。此时, 不需要与 UE进行交互, 可以把网元交互量降到最小、 效率最高的进行定位过程的处理。
又如,当网络只提供某种定位方法的服务且该定位方法需要 UE参与时, RNC也可以不进行定位方法的选择, 直接向 UE发送定位测量控制消息。
另外, 本发明也适用于 TD-SCDMA通信系统。 工业实用性
针对现有 3GPP协议对定位请求类型中事件定义不完备和流程实现复杂 的缺陷,本发明公开了一种移动通信系统中跟踪定位业务的实现方法, 用于 在移动通信系统中的实现跟踪定位业务。本发明方法增加了一种定位请求的 事件类型: 跟踪报告, CN发送一次定位请求给 RNC就可以后续不断收到 跟踪定位的位置信息,从而筒化了现有 3GPP协议流程的实现,无需 Iu接口 和 Uu接口频繁的消息交互, 把消息处理的复杂度降到最低, 实现更方便, 处理更清晰, 同时使得跟踪业务定位的响应时间更迅速。
Claims
1、 一种移动通信系统中跟踪定位业务的实现方法, 其特征在于, 包括 如下步骤:
( a )核心网发送定位请求消息给无线网络控制器, 请求进行某用户的 跟踪定位业务;
( b )所述无线网络控制器收到所述请求消息后, 识别出是跟踪定位业 务的请求, 向相应的用户设备发送定位测量控制消息,要求其按指定的定位 类型进行跟踪定位业务测量;
( c )所述用户设备收到所述测量控制消息后, 确定跟踪定位的周期, 每隔一个周期执行一次定位处理, 并向所述无线网络控制器上^ 1结果;
( d )所述无线网络控制器每次收到所述用户设备的上报后 , 得到所述 用户设备的位置信息, 并作为定位结果上报所述核心网。
2、 如权利要求 1所述的实现方法, 其特征在于, 所述实现方法还包括 如下步骤: 在所述跟踪定位业务进行的过程中, 当需要终止该业务时, 所述核心网 发送定位终止请求消息给所述无线网络控制器;
所述无线网络控制器收到定位终止请求消息后,通知所述用户设备终止 此次跟踪定位业务的测量, 并删除本地与该业务相关的信息和资源;
所述用户设备收到要求其终止测量的消息后, 终止定位测量和上报, 删 除本地存储的与本次定位相关的信息。
3、 如权利要求 1 所述的实现方法, 其特征在于, 步骤(b ) 中所述无 线网络控制器指定的定位类型是基于用户设备的定位时, 步骤(c ) 中所述 用户设备每次完成定位测量并计算出自己的位置后上 步骤(d ) 中所述 无线网络控制器收到所述用户设备的位置信息后直接上报所述核心网。
4、 如权利要求 1 所述的实现方法, 其特征在于, 步骤(b ) 中所述无 线网络控制器指定的定位类型是用户设备辅助的定位时, 步骤(c ) 中所述 用户设备每次完成定位测量后即上报, 步骤(d ) 中所述无线网络控制器根 据该测量结果计算出所述用户设备的位置后, 再上报到所述核心网。
5、 如权利要求 1所述的实现方法, 其特征在于, 所述定位请求消息和 定位测量控制消息中还包含 "跟踪定位业务周期" 的可选项, 当该项配置有 周期值时, 所述用户设备将该周期值作为此次跟踪定位业务的周期, 否则, 用户设备将预设的缺省值作为此次跟踪定位业务的周期。
6、 如权利要求 1所述的实现方法, 其特征在于, 所述定位请求消息中 还包含有所要求的定位精度的信息, 所述步骤(b ) 中, 无线网络控制器先 根据该定位精度选择一个定位方法,然后判断该定位方法是否需要用户设备 参与, 如需要时, 再向相应的用户设备发送定位测量控制消息, 由用户设备 按选择的定位方法进行定位测量。
7、 如权利要求 1或 2所述的实现方法, 其特征在于, 所述核心网请求 所述无线网络控制器进行跟踪定位业务和终止跟踪定位时,是通过将所述定 位请求消息中请求类型的事件项指定为跟踪定位和终止跟踪定位来实现的。
8、 如权利要求 1 所述的实现方法, 其特征在于, 步骤(b ) 中所述无 线网络控制器请求所述用户设备进行跟踪定位业务测量时,是通过将定位测 量控制消息中 UE定位报告量信元下增加的定位业务类型指定为 "周期报告 的跟踪业务" 来实现的。
9、 一种移动通信系统中跟踪定位业务的实现方法, 其特征在于, 包括 如下步骤:
( A )核心网发送定位请求消息给无线网络控制器, 请求进行某用户的 跟踪定位业务, 并包含所要求的定位精度的信息;
( B )所述无线网络控制器收到所述请求消息后, 识别出是跟踪定位业 务的请求, 并根据所述定位精度选择一个定位方法, 当该定位方法不需用户 设备参与时, 该无线网絡控制器在本地设置此次跟踪业务的周期,每隔一个 周期按选择的定位方法对所述用户进行一次定位计算,并将得到的定位结果 上报所述核心网。
10、 如权利要求 9所述的实现方法,其特征在于,所述定位请求消息中 还包含 "跟踪定位业务周期" 的可选项, 当该项配置有周期值时, 所述无线 网络控制器将该周期值作为此次跟踪定位业务的周期, 否则,将预设的缺省 周期值作为此次跟踪定位业务的周期。
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| CN1411316A (zh) * | 2001-07-09 | 2003-04-16 | 日本电气株式会社 | 移动终端,位置搜索系统,位置搜索方法及其程序 |
| CN1518369A (zh) * | 2003-01-17 | 2004-08-04 | 华为技术有限公司 | 位置业务中周期性位置信息请求的信息交互方法 |
| US20040202292A1 (en) * | 2002-10-17 | 2004-10-14 | Jennifer Cook | Mobile station tracking in a wireless telecommunication system |
| US20050020276A1 (en) * | 2001-11-23 | 2005-01-27 | Markus Maanoja | Location request control |
| CN1596001A (zh) * | 2003-09-13 | 2005-03-16 | 华为技术有限公司 | 无线网络控制器面向用户的故障检测方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536850A (zh) * | 2003-04-09 | 2004-10-13 | 深圳市中兴通讯股份有限公司南京分公 | 一种基于小区标识和环回时间的移动定位方法 |
| CN1266956C (zh) * | 2003-06-10 | 2006-07-26 | 大唐移动通信设备有限公司 | 移动通信系统中rnc间小区或用户注册区更新的方法 |
| FR2864414B1 (fr) * | 2003-12-19 | 2006-03-03 | Nortel Networks Ltd | Procede de localisation dans un systeme de radiocommunication, systeme et dispositif de localisation pour la mise en oeuvre du procede |
-
2005
- 2005-08-10 CN CNB2005100902054A patent/CN100409719C/zh not_active Expired - Fee Related
-
2006
- 2006-08-02 WO PCT/CN2006/001935 patent/WO2007016859A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411316A (zh) * | 2001-07-09 | 2003-04-16 | 日本电气株式会社 | 移动终端,位置搜索系统,位置搜索方法及其程序 |
| US20050020276A1 (en) * | 2001-11-23 | 2005-01-27 | Markus Maanoja | Location request control |
| US20040202292A1 (en) * | 2002-10-17 | 2004-10-14 | Jennifer Cook | Mobile station tracking in a wireless telecommunication system |
| CN1518369A (zh) * | 2003-01-17 | 2004-08-04 | 华为技术有限公司 | 位置业务中周期性位置信息请求的信息交互方法 |
| CN1596001A (zh) * | 2003-09-13 | 2005-03-16 | 华为技术有限公司 | 无线网络控制器面向用户的故障检测方法 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12425804B2 (en) | 2019-05-10 | 2025-09-23 | Samsung Electronics Co., Ltd. | Method and apparatus for obtaining and managing location information of mobile terminal in edge computing system |
| CN112565315A (zh) * | 2019-09-10 | 2021-03-26 | 维沃移动通信有限公司 | 位置信息获取、位置服务配置方法和通信设备 |
| EP4114101A4 (en) * | 2020-03-30 | 2023-08-16 | Samsung Electronics Co., Ltd. | METHOD AND DEVICE FOR CONTROLLING THE POSITIONING DEPENDING ON THE MOVEMENT OF THE TERMINAL IN A WIRELESS COMMUNICATION SYSTEM |
| CN113543304A (zh) * | 2020-04-17 | 2021-10-22 | 大唐移动通信设备有限公司 | 一种辅助定位方法、装置及通信设备 |
| CN113543304B (zh) * | 2020-04-17 | 2023-01-31 | 大唐移动通信设备有限公司 | 一种辅助定位方法、装置及通信设备 |
| WO2026067132A1 (zh) * | 2024-09-26 | 2026-04-02 | 华为技术有限公司 | 定位方法及通信装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1913700A (zh) | 2007-02-14 |
| CN100409719C (zh) | 2008-08-06 |
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