| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve effective diversity under small throughput and reduced power consumption. <P>SOLUTION: The system includes a transmitting apparatus which is composed to create a first transmission RF signal and a second transmission RF signal which are carried out code spreading by a first spreading code and a second spreading code which have respective power spectrums of symmetrical shapes on a frequency axis from a data signal to be transmitted, and output at different times, and a transmission antenna which transmits the first transmission RF signal and the second transmission RF signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
