Patent ID: 8630261
Filing Date: 2014-01-14
Classification: H04W

Abstract:
1. A base station apparatus, comprising: a notification unit configured to convey a transmit timing of a signal to a terminal apparatus; a receiver configured to receive the signal transmitted from the terminal apparatus after the transmit timing is conveyed from said notification unit; a derivation unit configured to derive a displacement of timing between a first receive timing in said receiver and a second receive timing estimated based on the transmit timing in said notification unit; and a determining unit configured to determine a new transmit timing for the terminal apparatus, based on the displacement of timing derived by said derivation unit and configured to output the new transmit timing determined thereby to said notification unit, wherein when a number of consecutive occurrences in which the first receive timing lags the second receive timing is larger than a threshold value, said determining unit instructs the terminal apparatus to start a handover.