Patent ID: 8068567
Filing Date: 2011-11-29
Classification: H04L

Abstract:
1. A method for controlling a receiver of a multi-carrier system in response to the frequency characteristic of a local oscillator used for downconverting the received signal, comprising: a) estimating and using a common phase value of subcarriers of a received data symbol for correcting the phase of all subcarriers of the data symbol, wherein b) with a time-variant frequency of the local oscillator, using a first method for phase estimation and acquisition of the common phase value to be used for the phase correction, wherein the first method operates on the basis of pilot subcarriers, and c) with a time-invariant frequency of the local oscillator, using a second method for phase estimation and acquisition of the common phase value to be used for the phase correction, wherein the second method operates on the basis of data subcarriers, wherein for a predetermined period after the local oscillator has been switched on or over, performing b) and then performing c) wherein the predetermined period is predetermined as a number M of data symbols.