| 摘要 |
PURPOSE:To take a large number of information bits on a control channel by setting the transmission power of data transmission on the control channel larger than that of data transmission on a passing channel. CONSTITUTION:The up/down transmission power of the control channel is set larger than that of a communication channel. Namely, Pt<Pc and pt<pc. Since the transmission power of the control channel whose necessary bit error rate is high is set to be larger than that of the communication channel, a carrier wave power to a noise power ratio (CNR) of the control channel on a reception side can be set higher than CNR of the communication channel. Thus, an error correction code on the information can be eliminated or only the error correction code whose encoding rate is high is required as against the control channel whose necessary bit error rate is high, and the number of the information bits of the control channel are taken much.
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