Method and system of iterative coding/decoding of digital data streams coded by spatio-temporal combinations, in multiple transmission and reception
US7170948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03337
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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 Ξm on each pathway, then transmitted on a plurality (ν) of distinct antennas forming a space-diversity array. On reception, the coded symbol streams transmitted are observed (F) by means of a number ν of reception antennas which is independent of the number of transmission antennas, the observed coded symbol streamsare 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.