公开(公告)号：IE80438B1

公开(公告)日：1998-07-15

申请号：IE329590

申请日：1990-09-11

Applicant: MOTOROLA INC

Inventor： LABEDZ GERALD PAUL ,  BORTH DAVID EDWARD ,  RASKY PHILIP DAVID

IPC: H04L25/08 ,  H04L25/03 ,  H04L27/00 ,  H04L27/01 ,  H04L25/30 ,  H03M13/00

Abstract: In a communications network having time-dispersed signals, there is provided a mechanism for soft decision decoding. It comprises: radio reception of a time-dispersed signal, at least partly equalizing those time-dispersal effects, recovering information contained in the signal, multiplying with that recovered information the absolute value of that at-least-partly-equalized signal (scaled by a number derived from channel conditions over a time during which at least part of the information to be recovered is distributed), and error-correcting the multiplied information by a Viterbi algorithm channel decoding scheme of error correction. Accordingly, soft decision information is generated from within the equalization process itself.