| 摘要 |
Proposed is a signal transmission method, etc., which is suitable, with respect to a receiver, for moving TD, and FD code correlators separately, and retrieving a time offset, and a frequency offset separately. If the receiver (5) receives a transmission signal, the TD code correlator (29), and the FD code correlator (31) calculate a TD code correlation value, and an FD code correlation value, respectively, on the basis of a reception signal. A td retrieving unit (33) uses the TD code correlation value to retrieve a new time offset value in relation to a previously retrieved frequency offset value. Furthermore, an fD retrieving unit (35) uses the FD code correlation value to retrieve a new frequency offset value in relation to a previously retrieved time offset value. A retrieved value transmitting unit (27) feeds back the newly retrieved time, and frequency offset values to a transmitter (3). A phase correction unit (15) of the transmitter (3) uses the received time, and frequency offsets to adjust the phase of the transmission signal. |
