Patent ID: 8537946

Claim:
A wireless communication method of conducting wireless communication between a mobile station and a base station by using an Orthogonal Frequency Division Multiplexing (ODFM) modulation scheme, the method comprising: notifying the mobile station of a notification channel from the base station; in the mobile station, providing a channel to be frame synchronized with the notification channel and transmitting an OFDM symbol to the base station; in the base station, removing a guard interval from the transmitted OFDM symbol at two different timings to obtain two effective symbols; detecting two correlation peaks between the two respective effective symbols and a known symbol; calculating a timing correction amount by adding a timing, which corresponds to a guard interval removed when generating the effective symbols exhibiting a first correlation peak detected within a predetermined timing detection range that is shorter than an effective symbol length of the two correlation peaks, to a differential between the first correlation peak and reference timing of the base station; transmitting the timing correction amount to the mobile station by means of a timing correction burst; in the mobile station, correcting transmission timing in accordance with the timing correction amount; and transmitting a communication channel assignment request to the base station at the corrected transmission timing.