Patent ID: 7852956

Claim:
A communications system having a transmitter and a receiver, wherein: the transmitter comprises a transmission power peak detecting unit configured to measure each transmission power within a symbol, and to detect whether or not a measured value exceeds a preset threshold value, for each symbol of a multiplexed transmission sample or transmission chip, a power dispersing unit configured to generate and output a dispersion signal by dispersing each transmission power within the symbol to a plurality of subsymbols configured by partitioning the symbol, a dispersion indicate signal generating unit configured to generate a dispersion indicate signal, which indicates that the transmission power within the symbol is dispersed to the plurality of subsymbols, if said transmission power peak detecting unit detects that the measured value exceeds the threshold value, and a dispersion indicate signal multiplexing unit configured to multiplex the dispersion indicate signal to the transmission signal, and the transmitter makes a transmission to the receiver by using the dispersion signal output from said power dispersing unit if said transmission power peak detecting unit detects that the measured value exceeds the preset threshold value; and the receiver comprises a dispersion detecting unit, upon receipt of a signal transmitted from the transmitter, configured to detect whether or not the reception signal is the dispersion signal for each symbol of the reception signal, and to output a detection signal, a power combiner configured to synthesize power dispersed to the plurality of subsymbols within the symbol, and to output a synthesis signal, and a selecting unit configured to select and output either of the reception signal and the synthesis signal according to the detection signal.