Patent ID: 8660509

Claim:
A mobile terminal station comprising: a gain setting unit that sets a fixed gain set value that is a predetermined gain value at initial synchronization; a received signal amplifying unit that amplifies a received signal received from a base station in accordance with the fixed gain set value set by the gain setting unit; a synchronizing signal detecting unit that detects a synchronizing signal pattern from the received signal amplified by the received signal amplifying unit; and a fixed gain set value control unit that performs an automatic gain control by using the fixed gain set value as an initial value of the automatic gain control when the synchronizing signal pattern is detected by the synchronizing signal detecting unit, and that modifies the fixed gain set value set by the gain setting unit when the synchronizing signal pattern is not detected, wherein, when the fixed gain set value control unit modifies the fixed gain set value, the received signal amplifying unit, the synchronizing signal detecting unit, and the fixed gain set value control unit performs subsequent processes based on the fixed gain set value modified by the fixed gain set value control unit.