Global Patent Index - EP 1072122 A1

EP 1072122 A1 2001-01-31 - OPTIMIZED RATE-COMPATIBLE TURBO ENCODING

Title (en)

OPTIMIZED RATE-COMPATIBLE TURBO ENCODING

Title (de)

OPTIMIERTE RATENKOMPATIBLE TURBOKODIERUNG

Title (fr)

TURBO CODAGE COMPATIBLE AVEC UNE VITESSE AMELIOREE

Publication

EP 1072122 A1 (EN)

Application

EP 99906939 A

Priority

US 9902995 W

Abstract (en)

[origin: WO0048353A1] A method and apparatus for Turbo encoding uses a set of rate-compatible Turbo Codes optimized at high code rates and derived from a universal constituent code. The Turbo Codes have rate-compatible puncturing patterns. The method comprises: encoding a signal at a first and second encoder using a best rate 1/2 constituent code universal with higher code rates, the first encoder and the second encoder each producing a respective plurality of parity bits for each information bit; puncturing the respective plurality of parity bits at each encoder with a higher rate best puncturing patterns; and puncturing the respective plurality of parity bits at each encoder with a lower rate best puncturing pattern. In a variation, the best rate 1/2 constituent code represents a concatenation of polynomials 1+D<2>+D<3> (octal 13) and 1+D+D<3> (octal 15), D data bit. A Turbo Encoder is provided which has hardware to implement the method.

IPC 1-7 (main, further and additional classification)

H04L 1/00; H03M 13/00; H04L 1/12

IPC 8 full level (invention and additional information)

H03M 13/00 (2006.01); H03M 13/29 (2006.01); H04L 1/00 (2006.01)

CPC (invention and additional information)

H04L 1/0066 (2013.01); H03M 13/2957 (2013.01); H03M 13/6381 (2013.01); H04L 1/0041 (2013.01); H04L 1/0069 (2013.01); H03M 13/35 (2013.01); H03M 13/6306 (2013.01); H04L 1/1819 (2013.01)

Citation (search report)

See references of WO 0048353A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0048353 A1 20000817; AU 2673299 A 20000829; EP 1072122 A1 20010131

INPADOC legal status


2008-10-29 [18R] REFUSED

- Effective date: 20080617

2006-11-22 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20061019

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000927

2001-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE