TIMING ESTIMATION METHOD OF RANDOM ACCESS PREAMBLE RANDOM ACCESS PREAMBLE DETECTION METHOD AND RANDOM ACCESS PREAMBLE DETECTION APPRATUS

摘要

A random access preamble detection method of a base station comprises the steps of: removing a cyclic prefix (CP) from a reception signal; converting a frequency of the CP-removed reception signal to detect a plurality of first symbols corresponding to a plurality of first subcarriers constituting an uplink available resource; measuring a reception power for each of the plurality of first symbols corresponding to each of a plurality of second subcarriers allocated to a random access channel among the plurality of first subcarriers; according to a predetermined frequency hopping pattern, accumulating a reception power for each of the plurality of second subcarriers; and when the reception power accumulation according to the frequency hopping pattern is completed, detecting a preamble sequence using an accumulated value of the reception power of each of the plurality of second subcarriers.