A geographic area or zone surrounding a transmitter in a cellulartelephonesystem.
围绕蜂窝式电话系统的发射器的地理区域。
2
The cellular digital packet data (CDPD) is a system which borrows idle radio channels from the existing cellular mobile telephone networks for packet data transmission.
蜂窝数字分组数据(CDPD)是利用现有的模拟蜂窝电话网来传输数据的一种新技术。
3
As shown in FIG. 5, system 305 May be a cellulartelephone handset, although the scope of the present invention is not so limited.