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    • 2. 发明授权
    • Short message service initiated cellular mobile positioning system
    • 短消息服务启动蜂窝移动定位系统
    • US6052597A
    • 2000-04-18
    • US894151
    • 1997-08-15
    • Tommy Ekstrom
    • Tommy Ekstrom
    • G01S5/14H04W64/00H04Q7/22
    • H04W64/00G01S5/14
    • The position of a mobile station in a cellular mobile telephone system, particularly a GSM system, is determined by carrying out a simulated call setup, i.e., the call setup is interrupted subsequent to a telephone switching center (MSC) having received a paging response containing the identity of the cell and, optionally, a timing advance. The simulated call setup is initiated by generating a modified short message signal (SMS) which is not registered in the SMS catalogue of the mobile station and which is not shown to the user of the mobile station. The SMS commands the mobile station to carry out a position determining sequence in order to establish parameters for use in establishing the position of the mobile station, for example by commanding the mobile station to connect itself to a base station contained in its neighbor list, analyze the geographical position of the base station, and subsequently send the position determining parameters to a position handler. The geographical position of the base station is analyzed from the cell identity and, if available, the timing advance, the position of the mobile station being presented graphically on a picture screen and constantly updated after each call setup. The call setups are generated by the position handler.
    • PCT No.PCT / SE96 / 00210 Sec。 371日期:1997年8月15日 102(e)日期1997年8月15日PCT PCT 1996年2月16日PCT公布。 出版物WO96 / 25830 PCT 日期1996年8月22日通过执行模拟呼叫建立来确定移动台在蜂窝移动电话系统,特别是GSM系统中的位置,即,在具有电话交换中心(MSC)的呼叫建立被中断之后 接收到包含小区的身份的寻呼响应,以及可选的定时提前。 模拟呼叫建立是通过生成未注册在移动台的SMS目录中并且未向移动台的用户示出的修改的短消息信号(SMS)来发起的。 SMS命令移动台执行位置确定序列,以建立用于建立移动台的位置的参数,例如通过命令移动台将其自身连接到包含在其邻居列表中的基站,分析 基站的地理位置,并且随后将位置确定参数发送到位置处理器。 从小区标识分析基站的地理位置,并且如果可用的话,分时定时提前,移动台的位置以图形方式呈现在画面上,并且在每个呼叫建立之后不断更新。 呼叫建立由位置处理程序生成。