fixed satellite service
美 [fɪkst ˈsætəlaɪt ˈsɜːrvɪs]英 [fɪkst ˈsætəlaɪt ˈsɜːvɪs]
- 网络固定卫星服务;固定卫星业务
fixed satellite service-
In order to improve the spectrum usage of the up-band of fixed satellite service ( FSS ), an unlicensed access scheme is presented .
为了提高卫星固定业务上行频段的频谱利用效率，提出了一种无授权接入该频段的方案。
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An SS / CDMA system can provide both multiple access and switching to a multibeam geostationary fixed satellite service . The uplink access method is based on CDMA , the downlink on code division multiplexing ( CDM ), and the onboard switching on code division switching ( CDS ) .
SS/CDMA系统能为多波束对地静止卫星的固定业务提供多址和交换功能，该系统上行接入采用CDMA，下行采用码分复用，星上交换采用码分交换，整个系统采取按需分配控制。
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