DEMODULATOR AND DEMODULATING METHOD

摘要

The spread codes multiplexed in the received signal are counted. If the number of spread codes is under a predetermined threshold, switches (4, 5) are operated to be connected to a RAKE demodulation section (2); and if the number is a predetermined threshold or more, they are operated to be connected to a joint detection demodulation section (3). Thus, only when the number of multiplexed spread codes is large, namely, only when the number of users is large, the joint detection demodulation requiring a large power consumption is performed, and thereby power for demodulation is saved.