本文件规定了GMR-1基于职位的服务。移动地球站（MES）包含一个全球定位系统（GPS）接收器，该接收器定期确定MES的位置。MES在接入网络时向网关站（GS）报告其位置。GPS位置用于支持以下程序和服务:点波束选择；基于国家或地区的访问限制；主动断开呼叫；基于位置的征税和结算；MES位置显示；国家编号计划；紧急呼叫路由；合法拦截路由；打电话给巴林。该网络通过广播GPS的星历和历书数据来协助MES定位过程 卫星。该信息减少了选择卫星和测量位置所需的时间。GPS测量的定时和频率由系统信息中广播的参数、MES空闲模式程序（GMR）确定- 1 03.022[3]），通过信道分配过程中传输的参数、主动呼叫断开过程以及MES接收GPS广播信号的能力。MES将最新的GPS测量作为RACH上通道请求消息的一部分进行传输。作为主动呼叫断开的一部分，车辆终端（VT）在专用连接期间传输其GPS位置 程序交通控制子系统（TCS）是GS的组成部分，负责提供基于位置的服务。许多服务基于MES所在国的国家和地区。TCS在接收到GPS位置时确定MES所在的国家和地区。作为呼叫设置过程的一部分，TCS通过A接口传递国家和地区信息。基于位置的服务受到GPS系统的限制和可用性。GMR-1可以在没有GPS和位置传感器的情况下运行- 基于GPS的服务，因为GPS不可用或运营商不希望使用它。

The present document specifies the GMR-1 position-based services. The Mobile Earth Station (MES) contains a Global Positioning System (GPS) receiver, which periodically determines the position of the MES. The MES reports its position to the Gateway Station (GS) when it accesses the network. The GPS position is used to support the following procedures and services:spot beam selection;access restrictions based on country or region;active call disconnection;location-based tariffing and settlement;MES position display;national numbering plans;emergency call routing;lawful interception routing;call barring.The network assists the MES position-determination process by broadcasting ephemeris and almanac data for GPS satellites. This information reduces the time required to select satellites and measure the position.The timing and frequency of GPS measurements are determined by parameters broadcast in the system information, by MES idle mode procedures (GMR-1 03.022 [3]), by parameters transmitted during the channel assignment procedure, by the active call disconnection procedure, and by the MES's ability to receive the GPS broadcast signals. The MES transmits the most recent GPS measurement as part of the CHANNEL REQUEST message on the RACH. Vehicular Terminals (VTs) transmit their GPS position during dedicated connections as part of the active call disconnection procedure.The Traffic Control Subsystem (TCS) is the element of the GS responsible for providing position-based services. Many services are based upon the country and region within that country where the MES is located. The TCS determines the MES's country and region when it receives a GPS position. The TCS passes the country and region information across the A-Interface as part of the call set-up process.Position-based services are subject to the limitations and availability of the GPS system. GMR-1 may be operated without GPS and position-based services because GPS is not available or because the operator does not wish to make use of it.