Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
多重送受信における時空間組合わせによりコード化されたデジタル・データ・ストリームのための反復コード化/復号方法およびシステム
Document Type and Number:
Japanese Patent JP4184798
Kind Code:
B2
Abstract:
The invention relates to a method of coding and of decoding a digital data stream coded by spatio-temporal combinations, in multiple transmission and reception. On transmission, the initial stream (IDS) is subjected to an outer coding (A), a blockwise interleaving (B), a demultiplexing (C) over a plurality of pathways, to an inner coding Xim on each pathway, then transmitted on a plurality (nu) of distinct antennas forming a space-diversity array. On reception, the coded symbol streams transmitted are observed (F) by means of a number nu of reception antennas which is independent of the number of transmission antennas, the observed coded symbol streams { MSDS r } r = 1 r = rho are subjected to a process of turbo-detection by equalization and joint decoding (G), deinterleaving (H), outer decoding (I), interleaving (J), so as to generate an a priori information item (api) on the coded bits, which is reinjected (K) into the turbo-detection process. Application to the implementation of a universal radiofrequency interface, in particular for mobile radio telephony.

Inventors:
アントワーヌ・ベルテ
ラファエル・ヴィソズ
Application Number:
JP2002566894A
Publication Date:
November 19, 2008
Filing Date:
February 14, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
フランス テレコム
International Classes:
H04B7/06; H04J99/00; H03M13/25; H03M13/29; H03M13/45; H04B7/02; H04L1/00; H04L1/06; H04L25/03
Foreign References:
US6891897
US6678263
US6128330
Attorney, Agent or Firm:
志賀 正武
高橋 詔男
渡邊 隆
青山 正和
鈴木 三義
西 和哉
村山 靖彦
実広 信哉