上行频率
上行频率-
研究OFDMA上行载波频率偏移校正问题。
CFOs correction issue in OFDMA uplink is studied .
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有线电视运营商设备上的cablemodem在以5mhz至42mhz频段的不同上行流频率组合上接收所有下行流cablemodem的信号。
The cable modem at the cable operator 's facility receives signals from all the downstream cable modems on a different set of upstream frequencies in the5-MHz to42-MHz band .
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至于接收系统，只要将接收频率搜索范围扩大到上行信道频率范围就可以了。
As for the receiving system , as long as the receiving frequency search will extend to the upstream channel frequency range of it .
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在不同调制下，分析了Ka频段卫星的上行和下行频率在不同链路余量时的误码率特性。
The BER characteristics in different link margin for up-link and down-link in Ka-band are analyzed at different modulations , respectively .