Patent ID: 8165106

Claim:
An apparatus for a base station of a wireless communication network, the apparatus comprising: a detector for detecting an access code received from a mobile station in each of a plurality of time durations and for detecting a timing offset of the access code detected in each of the plurality of time durations; an estimator for estimating a Carrier-to-Interference Noise Ratio (CINR) during each of the plurality of time durations; and a determining unit for determining a timing offset correction value to be applied to subsequent signals from the mobile station using the CINR, the timing offset, and the access code detected in each of the plurality of time durations, wherein, if an access code of a first time duration is the same as an access code of a second time duration, and a difference between a timing offset of the first time duration and a timing offset of the second time duration is less than a threshold value, then the timing offset correction value is set as any one of the two timing offsets or as an average value of the two timing offsets.