US 2008/0165674 A1 · Apparatus, Method, Receiver, And Computer Readable Medium For Time Synchronization Offset Compensation

Abstract

Provided are an apparatus, a method, a receiver, and a computer readable recording medium for time synchronization offset compensation. The apparatus comprises an average time synchronization offset calculator, a reference clock frequency difference calculator, and a time synchronization offset compensator. The average time synchronization offset calculator calculates an average time synchronization offset between a phase reference symbol of a time-synchronization acquired frame and phase reference symbols of frames subsequent to the time-synchronization acquired frame. The reference clock frequency difference calculator calculates a reference clock frequency difference between a transmitter and a receiver. The time synchronization offset compensator compensates a time synchronization offset.

Claims16

Dependent claims

A time synchronization offset compensation apparatus for Orthogonal Frequency Division Multiplexing (OFDM) symbol demodulation, the apparatus comprising:

an average time synchronization offset calculator for calculating an average time synchronization offset between a phase reference symbol of a time-synchronization acquired frame and phase reference symbols of frames subsequent to the time-synchronization acquired frame, on the basis of the phase reference symbol of the time-synchronization acquired frame;
a reference clock frequency difference calculator for calculating a reference clock frequency difference between a transmitter and a receiver on the basis of the average time synchronization offset and a time difference between two phase reference symbols;
and
a time synchronization offset compensator for compensating a time synchronization offset on the basis of the average time synchronization offset and the reference clock frequency difference.

1 more element

A time synchronization offset compensation method for OFDM symbol demodulation, the method comprising:

compensating a wireless channel effect comprised in a phase reference symbol of a time-synchronization acquired frame and phase reference symbols of frames subsequent to the time-synchronization acquired frame;
calculating an average time synchronization offset between the phase reference symbol of the time-synchronization acquired frame and the phase reference symbols of the frames subsequent to the time-synchronization acquired frame;
calculating a reference clock frequency difference between a transmitter and a receiver on the basis of the average time synchronization offset and a time difference between two phase reference symbols;
and
compensating a time synchronization offset on the basis of the average time synchronization offset and the reference clock frequency difference.

2 more elements

Dependencies are inferred from the claim text.

Apparatus, Method, Receiver, And Computer Readable Medium For Time Synchronization Offset Compensation

Life of this patent

Apparatus, Method, Receiver, And Computer Readable Medium For Time Synchronization Offset Compensation

Life of this patent

Abstract

Claims16