COMMUNICATION APPARATUS AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To accurately detect propagation delay for each mobile station (each channel) without exerting adverse influence on the number of channels to be accommodated.

SOLUTION: In a communication terminal device, a correlation unit 204 uses a received signal from a separation unit 203 for each unit time and a cyclic basic code to perform correlation value calculation processing so as to create a delay profile for each unit time. A storage unit 205 stores the delay profile for each unit time from the correlation unit 204. A comparison/line estimation unit 206 compares the delay profile for each unit time stored in the storage unit 205 to detect propagation delay of each channel.

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