WO2011015074A1 - 利用基站进行终端定位的方法及装置 - Google Patents

利用基站进行终端定位的方法及装置 Download PDF

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Publication number
WO2011015074A1
WO2011015074A1 PCT/CN2010/073273 CN2010073273W WO2011015074A1 WO 2011015074 A1 WO2011015074 A1 WO 2011015074A1 CN 2010073273 W CN2010073273 W CN 2010073273W WO 2011015074 A1 WO2011015074 A1 WO 2011015074A1
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Prior art keywords
terminal
positioning
message
information
base station
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PCT/CN2010/073273
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English (en)
French (fr)
Inventor
高音
吴昊
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/257,125 priority Critical patent/US8929923B2/en
Priority to EP10805978.3A priority patent/EP2464181B1/en
Priority to BRPI1006485A priority patent/BRPI1006485A2/pt
Priority to JP2012523190A priority patent/JP5410607B2/ja
Publication of WO2011015074A1 publication Critical patent/WO2011015074A1/zh

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a wireless cellular communication system, and more particularly to a Long Term Evolution (LTE) and Long Term Evolution Enhanced (LTE-A) mobile communication system, using a base station for terminal positioning method.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • the LTE (Long Term Evolution) network is composed of an E-UTRAN (Evolved UTRAN) base station eNB (Evolved NodeB) and an EPC (Evolved Packet Core), and the network is flattened.
  • the EUTRAN includes a set of eNBs connected to the EPC through the S1 interface, and the eNBs can be connected through X2. S l and X2 are logical interfaces.
  • One EPC can manage one or more eNBs, and one NodeB can also be controlled by multiple EPCs, and one eNB can manage one or more cells.
  • the LTE-A system evolved from the LTE system, and the network architecture is based on LTE.
  • OAM Operation Management System
  • building and operating a network requires a lot of work, such as planning, configuration, optimization, calculation, adjustment, testing, error prevention, failure reduction, self-recovery, how to reduce operating costs and maintenance costs has become the focus of operators.
  • the user needs to simplify the use process, such as the Home NodeB device.
  • the user buys home, he hopes to be a plug-and-play device, and the power-on can automatically obtain the configuration operation.
  • the trend of the next generation mobile network must be self-configuration, self-optimization, and adaptive. The influence of human factors on the network is getting smaller and smaller.
  • Self-organizing network includes self-configuration and self-optimization.
  • coverage optimization and mobility optimization are included, in which coverage detection involves coverage vulnerability detection and insufficient coverage detection, and mobility optimization needs to collect and analyze various handover event information occurring in the current cell.
  • the location information of the terminal at the time of the event plays an important role in the analysis of the above optimization scenario.
  • the traditional positioning methods are as follows: CELL - ID, CELL -ID + RTT ( Round Trip Time ), OTDOA ( Observed Time Difference Of Arrival ), where
  • the CELL-ID positioning technology is a basic positioning method, and the location of the user is determined according to the cell ID number of the mobile station.
  • the positioning accuracy of the CELL-ID technology depends on the radius of the cell, that is, the size of the cell in which the mobile station is located, ranging from several hundred meters to several tens of kilometers. In the suburbs, rural areas, The coverage of the cell is large. In this case, the positioning accuracy of the CELL-ID is poor.
  • the urban area coverage is small, and the general cell radius is l ⁇ 2km. For dense urban areas, where the microcells are used, the radius of the cell may be several hundred meters. At this time, the positioning accuracy of the CELL-ID will be increased to several hundred meters.
  • CELL-ID positioning technology has the lowest positioning accuracy.
  • the CELL-ID cannot meet the requirements.
  • CELL-ID positioning does not require the positioning measurement of the mobile station, and the positioning signaling of the air interface is rarely transmitted, so the positioning response time is short, generally within 3 s.
  • CELL -ID+RTT (Round Trip Time) is an improved technology based on CELL-ID positioning technology. It uses the current CELL-ID of the terminal serving cell and the RTT information of the terminal to the base station for positioning.
  • OTDOA Observed Time Difference Of Arrival
  • E-OTD Enhanced Observed Time Difference
  • the downlink pilot signals of different base stations are measured by the mobile station to obtain the TOA (Time of Arrival) of the downlink pilot of different base stations.
  • TOA Time of Arrival
  • the position of the mobile station is calculated by using an appropriate position estimation algorithm.
  • the terminal since the terminal is a user equipment, which directly affects the user experience, how to fully utilize the base station information in the terminal positioning to achieve positioning helps reduce the terminal energy consumption and improve user satisfaction.
  • the present invention provides a method for performing terminal location using a base station, including the following steps: constructing a location message by augmenting a location report message or by an independent message; transmitting a location message to a location decision center; and using the located message pair The terminal performs positioning.
  • the location message includes information about a transmit and receive round trip time RTT of the terminal to the current serving base station, a global identifier of the serving cell where the current terminal is located, terminal information, and neighboring area signal information.
  • the information about the transmission and reception round-trip time RTT of the terminal to the current serving base station is RTT, or the distance from the terminal to the current serving base station calculated by using the RTT.
  • the terminal information includes one or more of the following: an international mobile subscriber identity IMSI of the terminal, a unique connection identifier of the base station and the terminal on the S1 interface, and a unique connection identifier of the mobility management entity and the terminal on the S1 interface. .
  • the neighboring area signal information includes a global identifier of the neighboring area, a reference signal received power of the neighboring area, and/or a reference signal receiving quality of the neighboring area.
  • the location message may further include longitude and latitude information of the current serving base station.
  • the location message may further include path loss information, and the positioning of the terminal by using the location message includes: obtaining, by using the path loss information, cross information of the possible range of the terminal in the multiple cells; and determining, by the decision center, the terminal according to the cross information accurate locating.
  • the location determination center is located in the core network element or the operation management system.
  • the present invention provides an apparatus for performing terminal positioning by using a base station, comprising: a construction unit, constructing a positioning message by augmenting a location message or by an independent message; a sending unit, sending the positioning message to the positioning decision center; , using the positioning message to locate the terminal.
  • the positioning message can be obtained according to the base station, and reported to the positioning decision center, and the location of the terminal is estimated according to the positioning information of the top 4, and the positioning of the terminal can be used to solve the problems of coverage optimization and mobility optimization. Making full use of the information that can be obtained by the base station side for positioning helps to reduce the energy consumption of the UE.
  • FIG. 1 is a flow chart of a method for terminal positioning using a base station according to an embodiment of the present invention
  • FIG. 2 is a flowchart of terminal positioning according to a first embodiment of the present invention
  • 4 is a flowchart of terminal positioning in a third embodiment of the present invention
  • FIG. 1 is a flow chart of a method for terminal positioning using a base station according to an embodiment of the present invention
  • FIG. 2 is a flowchart of terminal positioning according to a first embodiment of the present invention
  • 4 is a flowchart of terminal positioning in a third embodiment of the present invention
  • FIG. 1 is a flow chart of a method for terminal positioning using a base station according to an embodiment of the present invention
  • FIG. 2 is a flowchart of terminal positioning according to a first embodiment of the present invention
  • 4 is a flowchart of terminal positioning in a third embodiment of the
  • FIG. 5 is a structural diagram of a positioning message according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of terminal positioning
  • FIG. 8 is a schematic diagram of an apparatus in accordance with an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the drawings and specific embodiments.
  • 1 is a flowchart of a method for performing terminal location by using a base station according to an embodiment of the present invention. The method includes the following steps: Step S102: construct a positioning message by expanding a location message or by using a separate message; Step S 104: Send a positioning message to the positioning decision center; and step S106, use the positioning message to locate the terminal.
  • the base station information is not fully utilized for positioning, and the power consumption of the terminal is increased, which directly affects the user's satisfaction.
  • the positioning message includes information about a transmission and reception round trip time RTT of the terminal to the current serving base station, a global identifier of the serving cell where the terminal is currently located, terminal information, and neighboring area signal information.
  • the information about the transmission and reception round-trip time of the terminal to the current monthly base station may be an RTT, or a distance calculated by the terminal from the RTT to the current serving base station. If the information is RTT, the location determining center can calculate the distance from the terminal to the current serving base station according to the RRT. If the information is the distance from the terminal calculated by the RTT to the current serving base station, the positioning decision center can directly utilize the distance. The distance is positioned to speed up the judgment and improve the efficiency of positioning.
  • the terminal information comprises one or more of the following: an international mobile subscriber identity IMSI of the terminal, a unique connection identifier of the base station and the terminal on the SI interface, and a unique connection identifier of the mobility management entity and the terminal on the S1 interface.
  • the neighboring area signal information includes a global identifier of the neighboring cell, a reference signal received power of the neighboring cell, and/or a reference signal receiving quality of the neighboring cell.
  • the positioning message further includes longitude and latitude information of the current serving base station. With this information, the location decision center can be positioned more directly.
  • the positioning message further includes path loss information
  • the positioning of the terminal by using the positioning message comprises: obtaining the cross-over information of the possible range of the terminal in the plurality of cells by using the path loss information; and determining, by the determination center, the terminal according to the cross information.
  • the positioning decision center can be located in the core network element (MME) or the operation management system (OAM).
  • MME core network element
  • OAM operation management system
  • Step 1 The MME requests the eNB to perform location reporting on the current UE by using a LOCATION REPORTING CONTROL message.
  • the request type includes the event and the report content.
  • the event is currently defined in three types: Direct, Change of service cell, Stop Change of service cell, and the report content includes the global identifier of the cell.
  • Step 2 After receiving the control message, the eNB receives the control message. If the processing succeeds, the MME is reported according to the type of the request, and is reported by the LOCATION REPORT message, and the content of the report includes the global identifier of the current serving cell, where the embodiment of the present invention is expanded, and the content of the foregoing may also include the terminal to the service. transmission and reception of cells or the RTT is calculated by the base station, the terminal in terms of distance (RTT * 3 * 10 a 8/2 ) to the serving cell, further, the content may further include Gen 4 terminal measured o The location location message includes the cell global identifier of the neighboring cell and the neighbor measured by the terminal.
  • Step 3 The eNB sends a LOCATION REPORT FAILURE INDICATION message to the MME, and includes the reason for the failure.
  • Step 1 The eNB reports the current terminal-related positioning message to the MME according to the requirement, for example, periodically uploading the command or the MME according to the request of the MME.
  • Step 2 The eNB constructs a positioning message, where the message content includes terminal related information (such as the IMSI of the terminal, and/or the unique connection flag of the base station and the terminal on the S1 interface, and/or the mobility management entity and the UE at S1.
  • the unique connection identifier on the interface may also include the RTT of the terminal to the serving cell or calculated by the base station, converted into the distance from the terminal to the serving cell, and further
  • the reported content may further include a neighbor location location message measured by the terminal, including a cell global identifier of the neighboring area and an RSRP and/or an RSRQ of the neighboring area measured by the terminal, and further, the base station may also set its own geographical location.
  • the information such as the longitude and latitude information of the base station plan, is carried in the positioning message, as shown in FIG. 5.
  • positioning messages can also be implemented by constructing independent messages.
  • Step 1 The eNB reports the current terminal-related positioning message to the OAM according to the requirement, for example, periodically uploading the command or the OAM request to trigger the uplink.
  • Step 2 The eNB constructs a positioning message, where the message content includes terminal related information (such as the IMSI of the terminal, and/or the unique connection flag of the base station and the terminal on the S1 interface, and/or the mobility management entity and the UE at S1.
  • terminal related information such as the IMSI of the terminal, and/or the unique connection flag of the base station and the terminal on the S1 interface, and/or the mobility management entity and the UE at S1.
  • the unique connection identifier on the interface), the global identifier of the current monthly traffic cell of the terminal, may also include the RTT of the terminal to the serving cell or calculated by the base station, converted into the distance from the terminal to the serving cell, and further
  • the reported content may further include a neighbor location location message measured by the terminal, including a cell global identifier of the neighboring area and an RSRP and/or an RSRQ of the neighboring area measured by the terminal, and further, the base station may also set its own geographical location.
  • the information such as the longitude and latitude information of the base station plan, is carried in the positioning message.
  • the terminal may be located by using different determining methods, and the positioning decision center may be located in the MME or the OAM.
  • the location of the current serving cell and the distance from the terminal to the base station calculated according to the RTT can determine the location of the terminal 4, as shown in FIG. 6.
  • the rough decision method is based on the strength of the signal quality of the neighboring area and the location of the neighboring area to determine the current terminal position.
  • the terminal is closer to the base station of the serving cell with good signal quality.
  • FIG. 8 shows an apparatus for performing terminal location using a base station according to an embodiment of the present invention.
  • the apparatus includes: a constructing unit 82, constructing a positioning message by augmenting a location report message or by an independent message; and transmitting unit 84, positioning The message is sent to the location decision center; and the location unit 86 locates the terminal by using the location message.
  • a general-purpose computing device which can be centralized on a single computing device or distributed over a network of multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be fabricated into individual integrated circuit modules, or multiple of them Modules or steps are made in a single integrated circuit module.

Description

利用基站进行终端定位的方法^^置 技术领域 本发明涉及无线蜂窝通信系统， 更具体地说， 是长期演进 （LTE ) 及长 期演进增强 （LTE-A ) 移动通信系统中， 利用基站进行终端定位方法。 背景技术
LTE ( Long Term Evolution ) 网络由 E-UTRAN(Evolved UTRAN)基站 eNB ( Evolved NodeB ) 和演进分组交换中心 EPC ( Evolved Packet Core ) 组 成， 网络扁平化。 其中 EUTRAN包含和 EPC通过 S 1接口连接的 eNB的集 合， eNB之间能通过 X2连接。 S l、 X2是逻辑接口。 一个 EPC可以管理一 个或多个 eNB, —个 NodeB也可以受控于多个 EPC, —个 eNB可以管理一 个或多个小区。 LTE-A系统由 LTE系统演进而来， 网络架构与 LTE—致。 同时网络架构中存在操作管理系统 （OAM ), 可以对其中一个或者多个网元 进行操作和管理。 一方面， 建立和运营一个网络需要艮多工作， 比如规划、 配置、 优化、 计算、 调整、 测试、 预防错误、 减少失败、 自我恢复， 如何减少运营成本和 维护成本已成为运营商关注的主题， 另一方面， 用户需要简化使用流程， 比 如 Home NodeB设备， 用户买回家即希望是一个即插即用设备， 一上电能够 自动获取配置运行。 下一代移动网络的趋势必然是自配置、 自优化、 自适应， 人为因素对网络的影响越来越小， 因此提出了自组织网络概念， 自组织网络 包括自配置和自优化两方面。 在自优化中包含覆盖优化、 移动性优化， 其中 覆盖优化中涉及到覆盖漏洞的检测、 以及覆盖不充分的检测， 移动性优化则 需要对当前小区内发生的各种切换事件信息进行搜集和分析， 其中事件发生 时的终端的位置信息对以上优化场景的分析起着重要的作用。 传统地定位方法有以下几种： CELL - ID、 CELL -ID+RTT ( Round Trip Time )、 OTDOA ( Observed Time Difference Of Arrival ), 其中，
CELL-ID定位技术是一种最基本的定位方法， 根据移动台所处的蜂窝小 区 ID号来确定用户的位置。 CELL-ID技术的定位精度取决于蜂窝小区的 半径， 即移动台所处小区的大小， 从几百米到几十公里不等。 在郊区、 农村， 小区的覆盖范围较大， 这种情况下 CELL-ID的定位精度就较差。 市区的小区 覆盖范围较小， 一般小区半径在 l ~ 2km。 对于密集市区， 釆用微蜂窝的区 域，小区半径可能到几百米，此时 CELL-ID的定位精度将相应提高为几百米。 与其它技术相比， CELL-ID定位技术的定位精度是最低的。 当需要精度较高 的紧急定位服务时， CELL-ID就无法满足要求。 另一方面， CELL-ID定位不 需要移动台的定位测量， 并且空中接口的定位信令传输很少， 所以定位响应 时间较短， 一般在 3s以内。
CELL -ID+RTT ( Round Trip Time )是在 CELL -ID定位技术的基础上的 改进技术， 利用当前终端服务小区的 CELL - ID以及终端当前到基站的 RTT 信息进行定位。
OTDOA(Observed Time Difference Of Arrival)类似 GSM 网络中的 E-OTD(Enhanced Observed Time Difference) , 通过移动台测量不同基站的下 行导频信号， 得到不同基站下行导频的 TOA(Time of Arrival, 到达时刻）， 根 据该测量结果并结合基站的坐标， 釆用合适的位置估计算法， 计算出移动台 的位置。 在网络实现中， 由于终端是用户设备， 直接影响到用户感受， 因此在终 端定位中如何充分利用基站信息实现定位， 有助于减少终端能耗， 提高用户 感受满意度。 因此当用户终端在连接状态的时候， 如何充分利用基站能够获 取的信息来实现终端定位是本发明需要解决的问题。 发明内容 针对目前终端定位时终端能耗过高导致用户满意度降低等问题而提出本 发明， 为此， 本发明的主要目的在于提供一种终端定位解决方案， 以解决上 述问题。 本发明提出了一种利用基站进行终端定位的方法， 包括以下步骤： 通过 扩充位置上报消息或者通过独立的消息来构造定位消息； 将定位消息发送至 定位判决中心； 以及利用所定位消息对所述终端进行定位。 其中， 定位消息包括关于所述终端到当前服务基站的发射和接收往返时 间 RTT的信息、 当前终端所在的服务小区的全局标志符、 终端信息、 以及邻 区信号信息。 其中， 关于终端到当前服务基站的发射和接收往返时间 RTT 的信息是 RTT, 或者是利用 RTT计算出的所述终端到当前服务基站的距离。 其中， 终端信息包括以下各项的一个或多个： 终端的国际移动用户识别 IMSI、 基站和终端在 S 1接口上的唯一连接标志、 以及移动管理实体和终端 在 S 1接口上的唯一连接标志。 其中， 邻区信号信息包括邻区的全局标志符、 邻区的参考信号接收功率 和 /或邻区的参考信号接收质量。 其中， 定位消息还可以包括所述当前服务基站的经度和纬度信息。 其中， 定位消息还可以包括路损信息， 利用所定位消息对所述终端进行 定位包括： 利用路损信息获得终端在多个小区的可能范围的交叉信息； 判决 中心根据交叉信息对从而对终端进行精确定位。 其中， 定位判决中心位于核心网网元或操作管理系统。 本发明提出了一种利用基站进行终端定位的装置， 包括： 构造单元， 通 过扩充位置上 4艮消息或者通过独立的消息来构造定位消息； 发送单元， 将定 位消息发送至定位判决中心； 定位单元， 利用定位消息对终端进行定位。 通过本发明， 能够根据基站获得定位消息， 并上报给定位判决中心， 根 据上 4艮的定位消息估算出终端的位置， 通过对终端的定位可以有利于解决覆 盖优化、 移动性优化等问题， 同时充分利用基站侧能获取的信息来进行定位 有助于减少 UE的能耗。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中： 图 1是根据本发明实施例的利用基站进行终端定位的方法的流程图； 图 2是才艮据本发明第一实施例的终端定位流程图； 图 3是根据本发明第二实施例的终端定位流程图； 图 4是 居本发明第三实施例的终端定位流程图； 图 5是根据本发明一个实施例的定位消息结构图； 图 6是终端定位的示意图； 图 7是通过终端在多个小区的可能范围交叉而获得的终端位置信息的示 意图； 图 8是 居本发明实施例的装置的示意图。 具体实施方式 下面结合附图和具体实施方式对本发明作进一步的说明。 图 1是根据本发明实施例的利用基站进行终端定位的方法的流程图， 方 法包括以下步 4聚： 步骤 S 102 , 通过扩充位置上 4艮消息或者通过独立的消息来构造定位消 息； 步骤 S 104, 将定位消息发送至定位判决中心； 以及 步骤 S 106, 利用该定位消息对终端进行定位。 相关技术中， 没有充分利用基站信息实现定位， 增加了终端的能耗， 直 接了影响用户的满意度。 本发明实施例提供的方法中， 通过将构造的定位消 息通知给定位判决中心进行定位， 减少了终端的能耗， 从而提高了用户的满 意度。 优选地， 定位消息包括关于终端到当前服务基站的发射和接收往返时间 RTT有关的信息、 终端当前所在的服务小区的全局标志符、 终端信息、 以及 邻区信号信息。 通过提供以上的信息， 能够更加精确的实现定位。 优选地， 关于终端到当前月艮务基站的发射和接收往返时间的信息可以是 RTT, 或者是利用 RTT计算出的终端到当前服务基站的距离。 其中， 若该信 息为 RTT,则可以由定位判决中心根据 RRT计算处终端到当前服务基站的距 离， 若该信息为利用 RTT计算出的终端到当前服务基站的距离， 则定位判决 中心可以直接利用该距离进行定位，加快了判决的速度，提高了定位的效率。 优选地， 终端信息包括以下各项的一个或多个： 终端的国际移动用户识 别 IMSI、 基站和终端在 S I接口上的唯一连接标志、 以及移动管理实体和终 端在 S 1接口上的唯一连接标志。 优选地， 邻区信号信息包括邻区的全局标志符、 邻区的参考信号接收功 率和 /或邻区的参考信号接收质量。 优选地， 定位消息还包括当前服务基站的经度和纬度信息。通过该信息， 定位判决中心可以更加直接 J 青确地进行定位。 优选地， 定位消息还包括路损信息， 利用定位消息对终端进行定位包括： 利用路损信息获得终端在多个小区的可能范围的交叉信息； 判决中心根据交 叉信息对终端进行定位。 £定定位判决中心可位于核心网网元 （ MME ) 或者操作管理系统 ( OAM )„ 结合图 2, 具体实施例一描述如下： 步骤 1 : MME通过 LOCATION REPORTING CONTROL消息要求 eNB 对当前 UE进行位置上报， 其中包含请求类型， 包括事件和上报内容， 事件 目前定义三种： Direct, Change of service cell, Stop Change of service cell, 上 报内容包含小区的全局标志符。 步骤 2: eNB接收到该控制消息后，若处理成功，则根据请求类型对 MME 进行上报， 通过 LOCATION REPORT消息进行上报， 上报内容包括当前服 务小区的全局标志符， 这里本发明实施例进行扩充， 上 4艮内容还可以包括终 端到服务小区的发射和接收往返时间 RTT或者由基站进行计算，换算为终端 到服务小区的距离 （RTT*3* 10A8/2 ), 更进一步地， 上 4艮内容还可以包括终 端测量到的邻区定位消息， 包括邻区的小区全局标志符以及终端最新测量到 的邻区的 RSRP和 /或 RSRQ, 再进一步地， 基站也可以将自身的地理位置信 息， 比如基站规划的经度和纬度信息在定位消息中携带。 否则， 若处理失败， 则转到步骤 3。 步骤 3: eNB发送 LOCATION REPORT FAILURE INDICATION消息给 MME, 并包含失败原因。 结合图 3 , 具体实施例二描述如下: 步骤 1 : eNB根据需求将当前终端相关的定位消息上报给 MME, 比如定 期上 4艮或者才艮据 MME的请求来触发上 4艮。 步骤 2: eNB构造定位上 4艮消息， 消息内容包括终端相关的信息 （比如 终端的 IMSI、和 /或基站和终端在 S 1接口上的唯一连接标志和 /或移动管理实 体和 UE在 S 1接口上的唯一连接标志）， 上 4艮终端的当前月艮务小区的全局标 志符， 还可以包括终端到服务小区的 RTT或者由基站进行计算， 换算为终端 到服务小区的距离， 更进一步地， 上报内容还可以包括终端测量到的邻区定 位消息， 包括邻区的小区全局标志符以及终端最新测量到的邻区的 RSRP和 / 或 RSRQ, 再进一步地， 基站也可以将自身的地理位置信息， 比如基站规划 的经度和纬度信息在定位消息中携带， 如图 5所示。 另外， 定位消息也可以 通过构造独立消息来实现。 结合图 4, 具体实施例三描述如下： 步骤 1 : eNB根据需求将当前终端相关的定位消息上报给 OAM, 比如定 期上 4艮或者才艮据 OAM的请求来触发上 4艮。 步骤 2: eNB构造定位上 4艮消息， 消息内容包括终端相关的信息 （比如 终端的 IMSI、和 /或基站和终端在 S 1接口上的唯一连接标志和 /或移动管理实 体和 UE在 S 1接口上的唯一连接标志）， 上 4艮终端的当前月艮务小区的全局标 志符， 还可以包括终端到服务小区的 RTT或者由基站进行计算， 换算为终端 到服务小区的距离， 更进一步地， 上报内容还可以包括终端测量到的邻区定 位消息， 包括邻区的小区全局标志符以及终端最新测量到的邻区的 RSRP和 / 或 RSRQ, 再进一步地， 基站也可以将自身的地理位置信息， 比如基站规划 的经度和纬度信息在定位消息中携带。 以上所有实施例中， 当定位判决中心得到该信息后， 可通过不同的判决 方法对终端进行定位， 定位判决中心可以位于 MME或者 OAM。 比如通过当 前服务小区的覆盖范围以及根据 RTT 计算出来的终端到基站的距离可以确 定终端的大 4既位置， 如图 6所示。 对于全向小区和扇形小区范围有所区别。 再根据上报的邻区的信号质量， 比如粗略的判决方式是根据邻区信号质量的 强弱， 以及邻区的分布位置判决当前终端位置。 通常地， 终端离信号质量好 的服务小区的基站较近。 然而， 由于终端测量到的小区信号质量的强弱和路 损有直接的关系， 路损越大， 则信号质量越弱， 因此更准确地， 可以利用终 端上报的路损信息， 或者基站根据 Pathloss = 导频发射功率 - RSRP的计算 公式， 通过路损和邻区小区覆盖信号传播模型进行对比， 得到该终端在邻区 的可能范围， 并通过终端在多个小区的可能范围交叉后可获得较为准确的位 置信息。 如图 7所示。 图 8示出了根据本发明实施例的一种利用基站进行终端定位的装置， 该 装置包括： 构造单元 82 , 通过扩充位置上报消息或者通过独立的消息来构造 定位消息； 发送单元 84 , 将定位消息发送至定位判决中心； 以及定位单元 86 , 利用定位消息对终端进行定位。 领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计 算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来 实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 或者将它们 分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作成单个 集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的^"神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种利用基站进行终端定位的方法， 其特征在于， 所述方法包括以下步 骤：
通过扩充位置上报消息或者通过独立的消息来构造定位消息； 将所述定位消息发送至定位判决中心； 以及
利用所述定位消息对所述终端进行定位。
2. 根据权利要求 1所述的方法， 其特征在于， 所述定位消息包括关于所述 终端到当前服务基站的发射和接收往返时间 RTT有关的信息、 所述终端 当前所在的服务小区的全局标志符、 所述终端信息、 以及邻区信号信息。
3. 根据权利要求 2所述的方法， 其特征在于， 关于所述终端到当前服务基 站的发射和接收往返时间的信息是 RTT,或者是利用所述 RTT计算出的 所述终端到所述当前服务基站的距离。
4. 居权利要求 2所述的方法， 其特征在于， 所述终端信息包括以下各项 的一个或多个： 所述终端的国际移动用户识别 IMSI、 基站和所述终端在 S 1接口上的唯一连接标志、 以及移动管理实体和所述终端在 S 1接口上 的唯一连接标志。
5. 根据权利要求 2述的方法， 其特征在于， 所述邻区信号信息包括邻区的 全局标志符、 邻区的参考信号接收功率和 /或邻区的参考信号接收质量。
6. 根据权利要求 2所述的方法， 其特征在于， 所述定位消息还包括所述当 前服务基站的经度和纬度信息。
7. 根据权利要求 5所述的方法， 其特征在于， 所述定位消息还包括路损信 息， 利用所述定位消息对所述终端进行定位包括：
利用所述路损信息获得所述终端在多个小区的可能范围的交叉信 息；
所述判决中心根据所述交叉信息对所述终端进行定位。
8. 根据权利要求 1所述的方法， 其特征在于， 所述定位判决中心位于核心 网网元或操作管理系统。 种利用基站进行终端定位的装置， 包括：
构造单元， 通过扩充位置上报消息或者通过独立的消息来构造定位 消息；
发送单元， 将所述定位消息发送至定位判决中心；
定位单元， 利用所述定位消息对所述终端进行定位。
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EP2464181A4 (en) 2013-11-06
BRPI1006485A2 (pt) 2017-05-09
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US8929923B2 (en) 2015-01-06
CN101990299A (zh) 2011-03-23
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