监听移动用户位置的方法和监听系统 Method and monitoring system for monitoring mobile user location
技术领域Technical field
本发明实施例涉及移动通信技术， 尤其涉及一种监听移动用户位置的方 法和监听系统。 背景技术 Embodiments of the present invention relate to mobile communication technologies, and in particular, to a method and a listening system for monitoring a location of a mobile user. Background technique
为了给精确打击犯罪和预防犯罪提供位置依据， 各国政府安全部门均要 求移动运营商为移动通信系统部署监听系统。 In order to provide a basis for precise crime prevention and crime prevention, national government security departments require mobile operators to deploy monitoring systems for mobile communication systems.
目前的监听系统由合法监听网关（ Lawf l Interception Gateway,简称 LIG ) 和法律执行机构（Law Enforcement Agency, 简称 LEA )组成。 其中， LIG通 过 XI接口、 X2接口和 X3接口与移动通信系统中的网元（ Network Element, 简称 NE )连接， 该 NE具体可以为移动交换中心 （ Mobile Switching Center, 简称 MSC ) 、 归属位置寄存器（ Home Location Register, 简称 HLR ) 、 服务 通用分组无线服务技术支持节点 （ Serving General Packet Radio Service Support Node,简称 SGSN )、呼叫会话控制功能（ Call Session Control Function, 简称 CSCF )等通信设备中的任意一种。采用现有的监听系统及其监听移动用 户位置的方法， 当移动用户在移动通信系统中进行位置登记、 开机、 关机、 收发短消息或者通话等活动时， 移动通信系统能够获取该移动用户所处的小 区位置， 同时， 上述 NE能够感知到该用户的上述活动。 NE感知到上述活动 后， 如果该用户为需要监听的用户， 则 NE向监听系统中的 LIG发送监听相 关信息（ Interception Related Information, 简称 IRI )报告， 该 IRI中包含该用 户所处小区位置的小区全球标识（ Cell Global Identity, 简称 CGI信息 )。 LIG 通过 HI接口将该 IRI提供给 LEA。 The current monitoring system consists of a Lawy l Interception Gateway (LIG) and a Law Enforcement Agency (LEA). The LIG is connected to a network element (NE) in the mobile communication system through the XI interface, the X2 interface, and the X3 interface. The NE may be a Mobile Switching Center (MSC) or a home location register. Home Location Register (HLR), any of the communication devices such as the Serving General Packet Radio Service Support Node (SGSN) and the Call Session Control Function (CSCF). . The existing monitoring system and the method for monitoring the position of the mobile user, when the mobile user performs location registration, power on, power off, send/receive short messages or call activities in the mobile communication system, the mobile communication system can acquire the mobile user At the same time, the NE can sense the above activities of the user. After the NE senses the activity, if the user is a user that needs to be monitored, the NE sends an Interception Related Information (IRI) report to the LIG in the monitoring system, where the IRI includes the cell where the user is located. Global Global Identity (CGI Information). The LIG provides the IRI to the LEA via the HI interface.
采用上述现有的监听系统及其监听移动用户位置的方法， 所获得的用户 位置信息基于小区粒度， 其精度依赖于小区覆盖范围的设置。 如果小区覆盖 范围大， 则获取的监听位置的精度低； 如果小区覆盖范围小， 则获取的监听 位置的精度高。 在市区等移动基站覆盖较为密集的区域， 单个基站的覆盖范 围较小， 锁定目标的区域小； 而如果在郊区或者人烟稀少的区域， 单个基站 覆盖范围较大， 锁定目标的区域就大。 因此， 现有监听系统及其监听移动用 户位置的方法的定位精度不利于政府安全部门快速精确追踪锁定目标， 难以 起到精确打击和快速预防犯罪的作用。Using the above existing monitoring system and its method of monitoring the location of the mobile user, the obtained user location information is based on the cell granularity, and its accuracy depends on the setting of the cell coverage. If the coverage of the cell is large, the accuracy of the acquired listening position is low; if the cell coverage is small, the accuracy of the acquired listening position is high. In areas where mobile base stations are densely covered, such as urban areas, the coverage of a single base station is small, and the area of the target is small; and in a suburban or sparsely populated area, a single base station The coverage is large and the area where the target is locked is large. Therefore, the positioning accuracy of the existing monitoring system and its method of monitoring the position of the mobile user is not conducive to the government security department to quickly and accurately track the locking target, and it is difficult to accurately strike and quickly prevent crime.
并且， 采用上述现有的监听系统及其监听移动用户位置的方法， 只能在 移动用户进行位置登记、 开机、 关机、 收发短消息或者通话等活动时， 由移 动通信系统的 NE向监听系统上报位置信息，监听系统只能被动接收 NE上报 的位置信息， 而无法通过该监听系统主动获取目标的位置信息， 因而不利于 实时定位。 Moreover, the above-mentioned existing monitoring system and the method for monitoring the position of the mobile user can only be used by the NE to the monitoring system of the mobile communication system when the mobile user performs activities such as location registration, power on, power off, sending and receiving short messages or calls. When the location information is reported, the monitoring system can only passively receive the location information reported by the NE, but cannot actively obtain the location information of the target through the monitoring system, which is not conducive to real-time positioning.
总之， 采用上述现有的监听系统及其监听移动用户位置的方法， 定位精 度和实时性差， 从而导致监听结果的准确性差。 发明内容 In summary, with the above-mentioned existing monitoring system and its method of monitoring the position of the mobile user, the positioning accuracy and the real-time performance are poor, resulting in poor accuracy of the monitoring result. Summary of the invention
本发明实施例提供一种监听移动用户位置的方法和监听系统， 用以解决 现有技术中无法通过监听系统主动获取目标位置信息和定位精度低的缺陷。 The embodiment of the invention provides a method for monitoring the location of a mobile user and a monitoring system for solving the defect that the target location information cannot be actively acquired by the monitoring system and the positioning accuracy is low in the prior art.
本发明的第一个方面是提供一种监听移动用户位置的方法， 包括： 合法监听网关 LIG向网关移动定位中心 GMLC发送定位请求消息，所述 定位请求消息包括目标用户的标识， 以使所述 GMLC与移动通信系统协作对 所述目标用户进行定位； 本发明的另一个方面是提供一种监听系统， 包括： A first aspect of the present invention provides a method for monitoring a location of a mobile subscriber, including: a lawful interception gateway LIG transmitting a location request message to a gateway mobile location center GMLC, where the location request message includes an identifier of a target user, so that the The GMLC cooperates with the mobile communication system to locate the target user; another aspect of the present invention provides a monitoring system, including:
合法监听网关 LIG, 用于向定位系统的网关移动定位中心 GMLC发送定 位请求消息， 所述定位请求消息包括目标用户的标识， 以使所述 GMLC与移 动通信系统协作对所述目标用户进行定位， 所述 LIG还用于获取所述 GMLC 返回的所述目标用户的位置信息。 The lawful interception gateway LIG is configured to send a location request message to the gateway mobile location center GMLC of the positioning system, where the location request message includes an identifier of the target user, so that the GMLC cooperates with the mobile communication system to locate the target user. The LIG is further configured to acquire location information of the target user returned by the GMLC.
由上述发明内容可见， 采用上述监听移动用户位置的方法和监听系统， 监听系统的 LIG向定位系统的 GMLC发送定位请求消息， GMLC与移动通信 系统协作对目标用户进行定位并向 LIG返回位置信息， 从而监听系统能够在 任意时刻主动获知目标用户的位置信息， 因此增强了监听移动用户位置的时 效性， 并且， 由于定位系统获取的位置信息的定位精度显著高于现有方法中 根据用户所处小区获得位置信息的定位精度， 因此提高了定位精度。 由于位 置信息的精度和时效性获得提高， 因此上述方法提高了监听结果的准确性。 附图说明It can be seen from the above description that the method for monitoring the location of the mobile user and the monitoring system are used, and the LIG of the monitoring system sends a positioning request message to the GMLC of the positioning system, and the GMLC cooperates with the mobile communication system to locate the target user and return the location information to the LIG. Therefore, the monitoring system can actively know the location information of the target user at any time, thereby enhancing the timeliness of monitoring the location of the mobile user, and the positioning accuracy of the location information acquired by the positioning system is significantly higher than that of the existing method according to the location of the user. The positioning accuracy of the position information is obtained, thereby improving the positioning accuracy. Due to bit The accuracy and timeliness of the information is improved, so the above method improves the accuracy of the monitoring result. DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.
图 1为本发明实施例一的监听移动用户位置的方法的流程图； 1 is a flowchart of a method for monitoring a location of a mobile user according to Embodiment 1 of the present invention;
图 2为本发明实施例二的监听移动用户位置的方法的信令流程图； 图 3为本发明实施例三的监听系统的结构示意图。 具体实施方式 FIG. 2 is a signaling flowchart of a method for monitoring a location of a mobile user according to Embodiment 2 of the present invention; FIG. 3 is a schematic structural diagram of a monitoring system according to Embodiment 3 of the present invention. detailed description
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
目前， 在现有技术中出现了多种利用现有移动通信系统对用户进行定位 的技术， 例如全球卫星定位系统（Global Positioning System, 简称 GPS )技 术等， 建立定位系统， 该定位系统通过其中的网关移动定位中心 （Gateway Mobile Location Center, 简称 GMLC )与移动通信系统连接， 通过 GMLC与 移动通信系统协作完成定位过程。采用此种定位方法的定位精度高于根据 UE 所处小区位置获得的定位精度， 最高的定位精度可以达到 5米。 在本发明的 下述实施例中， 将监听系统与上述定位系统结合， 以实现对移动用户位置的 监听。 At present, in the prior art, a plurality of technologies for locating users by using an existing mobile communication system, such as a Global Positioning System (GPS) technology, are established, and a positioning system is established, and the positioning system passes through The Gateway Mobile Location Center (GMLC) is connected to the mobile communication system, and the positioning process is completed by the GMLC and the mobile communication system. The positioning accuracy using this positioning method is higher than the positioning accuracy obtained according to the location of the cell where the UE is located, and the highest positioning accuracy can reach 5 meters. In the following embodiments of the invention, the listening system is combined with the positioning system described above to enable monitoring of the location of the mobile subscriber.
图 1为本发明实施例一的监听移动用户位置的方法的流程图。 如图 1所 示， 该方法包括以下过程。 FIG. 1 is a flowchart of a method for monitoring a location of a mobile user according to Embodiment 1 of the present invention. As shown in Figure 1, the method includes the following process.
步骤 101 : LIG向 GMLC发送定位请求消息。 Step 101: The LIG sends a location request message to the GMLC.
在本步骤中， LIG向 GMLC发送定位请求消息， 该定位请求消息中包括 目标用户的标识。 LIG通过向 GMLC发送定位请求消息，使 GMLC与移动通 信系统协作对目标用户进行定位。 步骤 102： LIG获取 GMLC返回的目标用户的位置信息。In this step, the LIG sends a location request message to the GMLC, where the location request message includes the identifier of the target user. The LIG enables the GMLC to collaborate with the mobile communication system to locate the target user by transmitting a location request message to the GMLC. Step 102: The LIG acquires location information of the target user returned by the GMLC.
在本发明实施例一中，监听系统的 LIG向定位系统的 GMLC发送定位请 求消息， GMLC与移动通信系统协作对目标用户进行定位并向 LIG返回位置 信息， 从而监听系统能够在任意时刻主动获知目标用户的位置信息， 因此增 强了监听移动用户位置的时效性， 并且， 由于定位系统获取的位置信息的定 位精度显著高于现有方法中根据用户所处小区获得位置信息的定位精度， 因 此提高了定位精度。 由于采用本发明实施例一的监听移动用户位置的方法， 能够提高位置信息的精度和时效性， 因此提高了监听结果的准确性。 In the first embodiment of the present invention, the LIG of the monitoring system sends a positioning request message to the GMLC of the positioning system, and the GMLC cooperates with the mobile communication system to locate the target user and return the location information to the LIG, so that the monitoring system can actively know the target at any time. The location information of the user is enhanced, and the timeliness of monitoring the location of the mobile user is enhanced, and the positioning accuracy of the location information acquired by the positioning system is significantly higher than the positioning accuracy of the location information obtained by the user in the existing method, thereby improving the positioning accuracy. positioning accuracy. The method for monitoring the position of the mobile user according to the first embodiment of the present invention can improve the accuracy and timeliness of the location information, thereby improving the accuracy of the monitoring result.
图 2为本发明实施例二的监听移动用户位置的方法的信令流程图。 参见 图 2, 在该信令流程涉及的各个通信设备中， LIG属于监听系统， GMLC属 于定位系统， HLR或归属用户服务器（ Home Subscriber Server, 简称 HSS ) 、 MSC、 无线接入网 ( Radio Access Network, 简称 RAN )属于移动通信系统， 用户设备 ( User Equipment, 简称 UE ) 为在该移动通信系统中需要监听的目 标用户使用的 UE。 如图 2所示， 该方法包括以下过程。 FIG. 2 is a signaling flowchart of a method for monitoring a location of a mobile user according to Embodiment 2 of the present invention. Referring to FIG. 2, in each communication device involved in the signaling process, the LIG belongs to a monitoring system, and the GMLC belongs to a positioning system, an HLR or a Home Subscriber Server (HSS), an MSC, and a Radio Access Network. The RAN is a mobile communication system, and a User Equipment (UE) is a UE used by a target user that needs to be monitored in the mobile communication system. As shown in Figure 2, the method includes the following process.
步骤 201： LIG向 GMLC发送定位请求消息。 Step 201: The LIG sends a location request message to the GMLC.
在本步骤中， LIG与 GMLC之间通过 Le接口连接， LIG具体通过该 Le 接口向 GMLC发送定位请求消息。 In this step, the LIG and the GMLC are connected through a Le interface, and the LIG sends a positioning request message to the GMLC through the Le interface.
具体地， 步骤 201可以采用三种触发条件， 当触发条件满足时， 执行步 骤 201。 Specifically, step 201 may adopt three trigger conditions, and when the trigger condition is satisfied, step 201 is performed.
触发条件一： 通过移动通信系统向 LIG发送 IRI报告， 触发步骤 201。 采用触发条件一， 在步骤 201之前还包括如下步骤： 移动通信系统向 LIG发 送 IRI报告， LIG获取来自移动通信系统的 IRI报告， 该 IRI报告中包括目标 用户标识。 当 LIG接收到该 IRI报告时， 执行步骤 201。 采用触发条件一可 以将本发明的监听系统与现有的监听系统相结合， 当移动通信系统的网元获 取目标用户的开机、 关机、 收发短消息、 通话等事件时， 按照现有的监听方 法向 LIG发送 IRI报告， LIG获取到该 IRI报告后， 向 GMLC发送定位请求 消息， 通过该定位请求消息触发 GMLC与移动通信系统协作对目标用户进行 定位。 Trigger Condition 1: An IRI report is sent to the LIG through the mobile communication system, and step 201 is triggered. Using the trigger condition one, before step 201, the following steps are further included: The mobile communication system sends an IRI report to the LIG, and the LIG obtains an IRI report from the mobile communication system, where the target user identifier is included in the IRI report. When the LIG receives the IRI report, step 201 is performed. The triggering condition can be used to combine the monitoring system of the present invention with the existing monitoring system. When the network element of the mobile communication system acquires the event of starting, shutting down, sending and receiving short messages, calls, etc. of the target user, according to the existing monitoring The method sends an IRI report to the LIG. After obtaining the IRI report, the LIG sends a location request message to the GMLC, and the positioning request message triggers the GMLC to cooperate with the mobile communication system to locate the target user.
触发条件二： 通过 LEA向 LIG发送定位请求消息， 触发步骤 201。 采用 触发条件二， 在步骤 201之前还包括如下步骤： LEA向 LIG发送定位请求消 息， LIG获取来自 LEA的定位请求消息， 上述定位请求消息中包括所述目标 用户标识。 采用触发条件二， 国家安全部门可以通过 LEA发送的定位请求消 息， 主动向 LIG发送对于目标用户的定位指令， LIG获取到 LEA发送的定位 请求消息后， 向 GMLC发送定位请求消息， 通过该定位请求消息触发 GMLC 与移动通信系统协作对目标用户进行定位。Trigger condition 2: The location request message is sent to the LIG through the LEA, and step 201 is triggered. The triggering condition 2 is adopted. Before step 201, the following steps are further included: The LEA sends a positioning request to the LIG. The LIG obtains a location request message from the LEA, and the location request message includes the target user identifier. The triggering condition 2, the national security department can actively send a positioning instruction to the LIG through the positioning request message sent by the LEA, and the LIG obtains the positioning request message sent by the LEA, and then sends a positioning request message to the GMLC, and the positioning request is sent through the positioning request. The message triggers the GMLC to collaborate with the mobile communication system to locate the target user.
触发条件三： LIG自发触发步骤 201。 采用触发条件三， LIG自发地发起 步骤 201 ,步骤 201具体可以包括： LIG根据预先配置或人工触发命令向 GMLC 发送定位请求消息。 采用触发条件三， 可以预先为 LIG配置发送定位请求消 息的条件， 当配置的条件满足时， LIG自发发起步骤 201。 例如， 上述发送定 位请求消息的条件可以为： 在预设时间发送定位请求消息， 或， 根据预设周 期周期性地发送定位请求消息等等。在 LIG根据人工触发命令向 GMLC发送 定位请求消息的情况下， 该人工触发命令可以指示周期性发送， LIG按照该 人工触发命令中规定的周期， 周期性地发送定位请求消息。 Trigger condition three: LIG spontaneously triggers step 201. The triggering condition 3 is used by the LIG to initiate the step 201. The step 201 may specifically include: the LIG sends a location request message to the GMLC according to a pre-configured or manually triggered command. With the trigger condition 3, the condition for sending the location request message may be configured in advance for the LIG. When the configured condition is met, the LIG spontaneously initiates step 201. For example, the condition for sending the location request message may be: sending a location request message at a preset time, or periodically transmitting a location request message or the like according to a preset period. In the case that the LIG sends a location request message to the GMLC according to the manual trigger command, the manual trigger command may indicate periodic transmission, and the LIG periodically transmits the location request message according to the period specified in the manual trigger command.
在步骤 201之后， GMLC收到 LIG发送的定位请求消息， 然后， GMLC 通过与移动通信系统协作， 对目标用户进行定位。 在本发明实施例二中， 定 位过程具体包括以下的步骤 202至步骤 209。 After step 201, the GMLC receives the location request message sent by the LIG, and then the GMLC coordinates the target user by cooperating with the mobile communication system. In the second embodiment of the present invention, the positioning process specifically includes the following steps 202 to 209.
步骤 202: GMLC向 HLR或 HSS发送目标用户路由信息请求消息。 在本步骤中， 目标用户路由信息请求消息中包括目标用户的标识。 Step 202: The GMLC sends a target user routing information request message to the HLR or the HSS. In this step, the target user routing information request message includes the identifier of the target user.
步骤 203: HLR或 HSS向 GMLC返回目标用户的路由信息。 Step 203: The HLR or the HSS returns the routing information of the target user to the GMLC.
在本步骤中， HLR或 HSS根据目标用户的实时位置登记信息， 获取该目 标用户的路由信息并返回给 GMLC。 In this step, the HLR or HSS obtains the routing information of the target user according to the real-time location registration information of the target user and returns it to the GMLC.
步骤 204: GMLC根据目标用户的路由信息， 向 MSC发起定位请求。 步骤 205: MSC寻呼目标用户的 UE, 确认目标用户的 UE所在位置。 步骤 206: MSC向目标用户的 UE所在的 RAN发送定位请求消息。 在本步骤中， 该定位请求消息中包括目标用户的标识。 Step 204: The GMLC initiates a location request to the MSC according to the routing information of the target user. Step 205: The MSC pages the UE of the target user, and confirms the location of the UE of the target user. Step 206: The MSC sends a location request message to the RAN where the UE of the target user is located. In this step, the location request message includes an identifier of the target user.
步骤 207: RAN对目标用户进行定位， 获取目标用户的位置信息。 Step 207: The RAN locates the target user, and obtains location information of the target user.
在本步骤中， 具体可以采用多种定位方式对目标用户进行定位。 例如， 可以采用以下定位方式中的一项或两项以上的结合对目标用户进行定位， 包 括： 小区标识定位方式、 小区标识结合往返时延定位方式、 可观察到达时差 ( Observed Time Difference of Arrival, 简称 OTDOA )定位方式、 上行链路到 达时差 （Uplink-Time Difference of Arrival, 简称 U-TDOA )定位方式、 控制 面辅助全球卫星定位系统（ Assisted Global Positioning System, 简称 A-GPS ) 定位方式或用户面 A-GPS定位方式。 其中， 小区标识定位方式和小区标识结 合往返时延定位方式的定位精度较低： 采用小区标识定位方式的定位精度从 几百米到几千米不等； 小区标识结合往返时延定位方式的定位精度在一千米 以内。 采用 OTDOA定位方式和 U-TDOA定位方式的定位精度中等， 采用 OTDOA定位方式的定位精度为几十米到几百米， 采用 U-TDOA定位方式的 定位精度为几十米到一、两百米。采用控制面 A-GPS定位方式和用户面 A-GPS 定位方式的定位精度高，可以达到 5至 50米。较佳地，在本发明实施例二中， 在 GMLC 与移动通信系统协作完成定位的过程中， 可以优先采用控制面 A-GPS定位方式或用户面 A-GPS定位方式。In this step, the target user may be specifically located by using multiple positioning methods. For example, the target user may be located by using one or more of the following positioning modes, including: cell identity positioning mode, cell identity combined with round-trip delay location mode, and Observed Time Difference of Arrival (observed) Referred to as OTDOA) positioning method, uplink to Uplink-Time Difference of Arrival (U-TDOA) positioning method, Assisted Global Positioning System (A-GPS) positioning method or user plane A-GPS positioning method. The positioning accuracy of the cell identifier positioning mode and the cell identifier combined with the round-trip delay positioning mode is low: the positioning accuracy of the cell identifier positioning mode ranges from several hundred meters to several kilometers; the cell identifier is combined with the round-trip delay positioning mode. The accuracy is within one kilometer. The positioning accuracy of the OTDOA positioning method and the U-TDOA positioning method is medium. The positioning accuracy of the OTDOA positioning method is several tens of meters to several hundred meters. The positioning accuracy of the U-TDOA positioning method is several tens of meters to one or two hundred meters. . The positioning accuracy of the control plane A-GPS positioning mode and the user plane A-GPS positioning mode is high, and can reach 5 to 50 meters. Preferably, in the second embodiment of the present invention, in the process of performing the positioning by the GMLC and the mobile communication system, the control plane A-GPS positioning mode or the user plane A-GPS positioning mode may be preferentially used.
步骤 208: RAN向 MSC上报目标用户的位置信息。 Step 208: The RAN reports the location information of the target user to the MSC.
步骤 209: MSC向 GMLC发送目标用户的位置信息。 Step 209: The MSC sends the location information of the target user to the GMLC.
步骤 210: GMLC向 LIG返回目标用户的位置信息。 Step 210: The GMLC returns the location information of the target user to the LIG.
在本步骤中， LIG与 GMLC之间通过 Le接口连接， GMLC通过该 Le接 口返回目标用户的位置信息。 LIG具体通过该 Le接口向 GMLC发送定位请 求消息。 In this step, the LIG and the GMLC are connected through a Le interface, and the GMLC returns the location information of the target user through the Le interface. The LIG sends a positioning request message to the GMLC through the Le interface.
在本发明实施例二中，监听系统的 LIG向定位系统的 GMLC发送定位请 求消息， GMLC与移动通信系统协作对目标用户进行定位并向 LIG返回位置 信息， 从而监听系统能够在任意时刻主动获知目标用户的位置信息， 因此增 强了监听移动用户位置的时效性， 并且， 由于定位系统获取的位置信息的定 位精度显著高于现有方法中根据用户所处小区获得位置信息的定位精度， 因 此提高了定位精度。 由于采用本发明实施例一的监听移动用户位置的方法， 能够提高位置信息的精度和时效性， 因此提高了监听结果的准确性。 并且， LIG可以根据移动通信系统发送的 IRI报告向定位系统触发定位操作， 或者， 还可以根据安全部门采用 LEA下发的命令向定位系统触发定位操作， 或者， 还可以根据配置或人工下发的命令向定位系统触发定位操作， 因此， 该监听 方法能够采用多种方式开启定位过程， 进一步提高了该监听移动用户位置的 方法的应用范围。 In the second embodiment of the present invention, the LIG of the monitoring system sends a positioning request message to the GMLC of the positioning system, and the GMLC cooperates with the mobile communication system to locate the target user and return the location information to the LIG, so that the monitoring system can actively know the target at any time. The location information of the user is enhanced, and the timeliness of monitoring the location of the mobile user is enhanced, and the positioning accuracy of the location information acquired by the positioning system is significantly higher than the positioning accuracy of the location information obtained by the user in the existing method, thereby improving the positioning accuracy. positioning accuracy. The method for monitoring the position of the mobile user according to the first embodiment of the present invention can improve the accuracy and timeliness of the location information, thereby improving the accuracy of the monitoring result. In addition, the LIG may trigger a positioning operation according to the IRI report sent by the mobile communication system to the positioning system, or may also trigger the positioning operation according to the command issued by the security department by using the LEA, or may be delivered according to the configuration or manually. The command triggers the positioning operation to the positioning system. Therefore, the monitoring method can open the positioning process in multiple ways, which further improves the application range of the method for monitoring the position of the mobile user.
图 3为本发明实施例三的监听系统的结构示意图。 如图 3所示， 该监听 系统中至少包括： LIG 31。FIG. 3 is a schematic structural diagram of a monitoring system according to Embodiment 3 of the present invention. As shown in Figure 3, the monitor The system includes at least: LIG 31.
其中， LIG 31用于向定位系统的 GMLC发送定位请求消息， 该定位请求 消息包括目标用户的标识， 以使 GMLC与移动通信系统协作对目标用户进行 定位。 LIG 31还用于获取 GMLC返回的目标用户的位置信息。 The LIG 31 is configured to send a positioning request message to the GMLC of the positioning system, where the positioning request message includes an identifier of the target user, so that the GMLC cooperates with the mobile communication system to locate the target user. LIG 31 is also used to obtain the location information of the target user returned by the GMLC.
在上述技术方案的基础上， 进一步地， LIG 31还用于获取来自移动通信 系统的 IRI报告，该 IRI报告中包括目标用户标识。 LIG 31根据该 IRI报告向 GMLC发送定位请求消息。 Based on the above technical solution, further, the LIG 31 is further configured to acquire an IRI report from the mobile communication system, where the target user identifier is included in the IRI report. The LIG 31 sends a location request message to the GMLC based on the IRI report.
或者， 上述监听系统中还包括： LEA 32。 LEA 32用于向 LIG 31发送定 位请求消息， 该定位请求消息中包括目标用户标识。 LIG 31还用于获取来自 LEA 32的定位请求消息， 根据该定位请求消息向 GMLC发送定位请求消息。 Alternatively, the above monitoring system further includes: LEA 32. The LEA 32 is configured to send a location request message to the LIG 31, where the location request message includes the target user identity. The LIG 31 is further configured to acquire a positioning request message from the LEA 32, and send a positioning request message to the GMLC according to the positioning request message.
或者， LIG 31具体用于根据预先配置或人工触发命令向 GMLC发送定位 请求消息。 Alternatively, the LIG 31 is specifically configured to send a location request message to the GMLC according to a pre-configured or manually triggered command.
在上述技术方案的基础上， 具体地， LIG 31与 GMLC通过 Le接口连接。 LIG 31具体用于通过该 Le接口向 GMLC发送定位请求消息， 并接收 GMLC 通过该 Le接口返回的目标用户的位置信息。 Based on the above technical solution, specifically, the LIG 31 and the GMLC are connected through a Le interface. The LIG 31 is specifically configured to send a location request message to the GMLC through the Le interface, and receive location information of the target user returned by the GMLC through the Le interface.
在上述技术方案的基础上， 具体地， GMLC具体用于与移动通信系统协 作，采用以下定位方式中的一项或两项以上的结合对所述目标用户进行定位， 包括： 小区标识定位方式、 小区标识结合往返时延定位方式、 OTDOA定位 方式、 U-TDOA定位方式、 控制面 A-GPS定位方式或用户面 A-GPS定位方 式。 On the basis of the foregoing technical solutions, specifically, the GMLC is specifically configured to cooperate with the mobile communication system, and the target user is located by using one or more of the following positioning modes, including: a cell identifier positioning manner, The cell identifier is combined with a round-trip delay positioning mode, an OTDOA positioning mode, a U-TDOA positioning mode, a control plane A-GPS positioning mode, or a user plane A-GPS positioning mode.
在本发明实施例三中，监听系统中的 LIG向定位系统中的 GMLC发送定 位请求消息， 以使 GMLC与移动通信系统协作对目标用户进行定位并向 LIG 返回位置信息， 从而该监听系统能够在任意时刻主动获知目标用户的位置信 息， 因此增强了监听移动用户位置的时效性， 并且， 由于定位系统获取的位 置信息的定位精度显著高于现有方法中根据用户所处小区获得位置信息的定 位精度， 因此提高了定位精度。 由于采用本发明实施例三的监听系统能够提 高位置信息的精度和时效性， 因此能够提高监听结果的准确性。 In the third embodiment of the present invention, the LIG in the monitoring system sends a positioning request message to the GMLC in the positioning system, so that the GMLC cooperates with the mobile communication system to locate the target user and return the location information to the LIG, so that the monitoring system can The location information of the target user is actively learned at any time, thereby enhancing the timeliness of monitoring the location of the mobile user, and the positioning accuracy of the location information acquired by the positioning system is significantly higher than the location information obtained by the location of the user in the existing method. Accuracy, thus improving positioning accuracy. Since the monitoring system of the third embodiment of the present invention can improve the accuracy and timeliness of the location information, the accuracy of the monitoring result can be improved.
在上述本发明实施三中， 以 GMLC属于定位系统， 监听系统与定位系统 为两个互相连接并且均与移动通信系统连接的独立系统为例，在实际应用中， 上述定位系统可以采用任何可以实现移动用户定位的定位系统， 或者， 在实 际应用中， 还可以将定位系统作为监听系统的一个子系统， 将其集成到监听 系统中， 该定位子系统可以与任何可以实现移动用户定位的定位系统相同。In the third implementation of the present invention, the GMLC belongs to the positioning system, and the monitoring system and the positioning system are two independent systems that are connected to each other and are connected to the mobile communication system. In practical applications, the positioning system may adopt any implementation. Positioning system for mobile user positioning, or In the inter-application, the positioning system can also be used as a subsystem of the monitoring system and integrated into the monitoring system, which can be the same as any positioning system that can realize mobile user positioning.
需要说明的是： 对于前述的各方法实施例， 为了简单描述， 故将其都表 述为一系列的动作组合， 但是本领域技术人员应该知悉， 本发明并不受所描 述的动作顺序的限制， 因为依据本发明， 某些步骤可以采用其他顺序或者同 时进行。 其次， 本领域技术人员也应该知悉， 说明书中所描述的实施例均属 于优选实施例， 所涉及的动作和模块并不一定是本发明所必须的。 It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
在上述实施例中， 对各个实施例的描述都各有侧重， 某个实施例中没有 详述的部分， 可以参见其他实施例的相关描述。 In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其 限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通技术 人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修改， 或 者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。 It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.