Compensation for the frequency shift and the timing shift in the frequency and time tracking loop based on the speed of the mobile unit

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for adjusting a communication receiver based on the velocity of a wireless communication device in relation to a base station.;SOLUTION: A receiver is adjusted by estimating a frequency shift of a communication signal transmitted between a base station and a wireless communication device (WCD) based on the WCD velocity. Using this estimate, adjustments are made to the communication receiver to account for the frequency shift of the communication signal. Adjustments to the receiver can include adjusting frequency and time tracking loops to account for the change in frequency of a signal received by, and from, the WCD as it moves relative to the base station. The receiver may be located in the WCD, or in the network infrastructure, or in both.;COPYRIGHT: (C)2010,JPO&INPIT