| 摘要 |
<P>PROBLEM TO BE SOLVED: To actualize reduction of PAPR (Ratio of transmission peak electric power transmission average electric power) without causing impairment in a code error rate. <P>SOLUTION: For every symbol of multiplexed transmission sample or transmission chip, each sample signal P0(0)-P0(N-1) is entered in a transmitter of a communication system. For every pair of specific sample signal(for example, P0(0) and P0(N/2) in pair), the sum of pair of the sample signals is sought by an adder 21. A dispersal signal P1(N/2), in which the power is attenuated to one half by an attenuator 23, and a dispersal signal P1(0), in which the power is attenuated to one half by the attenuator 23 after a difference of the sample signal pair is sought by a subtractor 22, are generated as an output. The dispersion signals P1(0), P1(N/2) are each correlated with a first sub-symbol and a second sub-symbol, which are each generated by separation inside the symbol. <P>COPYRIGHT: (C)2008,JPO&INPIT |
