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    • 2. 发明授权
    • Wireless personal mobile data terminal receiving a wide-area broadcast and capable of two-way communication in a local area
    • 无线个人移动数据终端接收广域广播并且能够在本地区域进行双向通信
    • US06711418B1
    • 2004-03-23
    • US08543101
    • 1995-10-13
    • Weijia WangNhan Tri Nguyen
    • Weijia WangNhan Tri Nguyen
    • H04Q700
    • H04W88/02H04W52/0216Y02D70/00
    • A wireless personal mobile terminal in a cellular data network includes a packet radio transceiver for communicating with cellular base stations and a paging receiver for receiving paging signals from a paging transmitter serving a large geographical area. The wireless personal mobile message unit has power-saving features built into the signal format. This personal mobile message unit accommodates many communication applications due to the high bandwidth and the low latency achieved in the cellular data network. Low-power operation and wide coverage is achieved using existing one-way paging infrastructure. The wireless personal mobile unit can be achieved inexpensively by modifying a conventional one-way pager.
    • 蜂窝数据网络中的无线个人移动终端包括用于与蜂窝基站通信的分组无线电收发机和用于从服务于大地理区域的寻呼发射机接收寻呼信号的寻呼接收机。 无线个人移动消息单元具有内置在信号格式中的省电功能。 由于在蜂窝数据网络中实现的高带宽和低延迟,该个人移动消息单元容纳许多通信应用。 使用现有的单向寻呼基础设施实现了低功耗操作和广泛的覆盖。 通过修改常规的单向寻呼机,可以廉价地实现无线个人移动单元。