Method and apparatus for geographic based control in a communication
system
    1.
    发明授权
    Method and apparatus for geographic based control in a communication system 失效
    用于通信系统中基于地理的控制的方法和装置

    公开(公告)号:US5857155A

    公开(公告)日:1999-01-05

    申请号:US675318

    申请日:1996-07-10

    摘要: A selective call transceiver (20) in a messaging system (100) having a plurality of transmitters (90, 94, 99), comprises a receiver module (26), a transmitter module (22) coupled to the receiver module and a controller (28) coupled to the receiver module and the transmitter module for controlling the operation of the selective call transceiver. Additionally the selective call transceiver comprises a GPS receiver (24) for receiving GPS information and coupled to the controller, wherein the controller uses the GPS information to assist in the control of functions selected from the group consisting of transmitter power control, site selection switching, sub-zone selection switching, forward error correction, retry transmission decisions, Doppler frequency shifting, synchronization, and frequency scanning and selection.

    摘要翻译: 具有多个发射机(90,94,99)的消息收发系统(100)中的选择性呼叫收发机(20)包括接收机模块(26),耦合到接收机模块的发射机模块(22)和控制器 28),其耦合到接收器模块和发射器模块,用于控制选择性呼叫收发器的操作。 此外,选择呼叫收发器包括用于接收GPS信息并耦合到控制器的GPS接收器(24),其中控制器使用GPS信息来辅助控制从发射机功率控制,站点选择切换, 子区域选择切换,前向纠错,重试传输决策,多普勒频移,同步和频率扫描和选择。