公开(公告)号：JP2000353993A

公开(公告)日：2000-12-19

申请号：JP2000123004

申请日：2000-04-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BUEHRER MICHAEL R ,  LIU SHANG-CHIEH ,  NICOLOSO STEVEN P ,  UPTEOGROVE DIRCK

IPC: H04L27/01 ,  H04B7/005 ,  H04L25/02 ,  H04Q7/38 ,  H04J13/00

Abstract: PROBLEM TO BE SOLVED: To provide a channel prediction which changes together with environments fluctuating at high speed by assuming that the channel linearly changes to a time and executing linear regression to a sample in a sampling window of a first signal component in a reception signal. SOLUTION: A frequency offset prediction value f"(t) is generated by a frequency offset predicator 10 by using a known signal component in a reception signal and is outputted together with a reception symbol r(t). A frequency offset compensator 12 uses the frequency offset prediction value f"(t) and generates a reception symbol r'(t) compensated by known and unknown signal components in the reception signal. A channel predicator 14 generates a channel prediction value g'(t) which constitutes a linear regression coefficient by using the reception symbol r'(t) whose known signal component is compensated and a window size. A channel compensator 16 compensates a channel distortion in the reception symbol r'(t) by using the channel prediction value g'(t).