IDCC Premium Board (IDCC)

[Gamco]

United States Patent 7,639,729
Pan , et al. December 29, 2009

--------------------------------------------------------------------------------
Channel estimation method and apparatus using fast fourier transforms


Abstract
A low cost method and system for efficiently implementing channel estimation in a wireless communication system using any desired length of a fast Fourier transform (FFT) independent of burst type or signal structure. The hardware complexity required to perform the channel estimation to process a plurality of different burst types is reduced. Simple tail zero-padding is used when the length of FFT is extended to a desired length for more efficient computation.


--------------------------------------------------------------------------------
Inventors: Pan; Jung-Lin (Selden, NY), Haim; John W. (Baldwin, NY), Zeira; Ariela (Huntington, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 10/618,227
Filed: July 11, 2003

--------------------------------------------------------------------------------

Related U.S. Patent Documents

--------------------------------------------------------------------------------

Application Number Filing Date Patent Number Issue Date
60460852 Apr., 2003


--------------------------------------------------------------------------------

Current U.S. Class: 375/139 ; 375/142; 375/219; 375/260; 375/347
Current International Class: H04B 1/00 (20060101)
Field of Search: 375/260,347,130,340,222 370/210,203 711/5