METHOD FOR TRANSMITTING A DIGITAL SIGNAL FOR A MARC SYSTEM HAVING A DYNAMIC HALF-DUPLEX RELAY, CORRESPONDING PROGRAM PRODUCT AND RELAY DEVICE

摘要

A relaying method performed by a half duplex relay for a telecommunications system. The method includes a reception stage of receiving codewords transmitted by a source, the successive codewords corresponding to B blocks, the first of which can be decoded independently of the other blocks. This stage includes a decoding step of estimating a message from each source based on received codewords, the message being associated with the codewords transmitted by the source. The relay performs an error detection and decision-taking step on messages that are decoded without error. The relay encodes a signal and forwards it to the destination, wherein the signal is representative of only those messages that are decoded without error, such that the relay passes from non-selective reception to selective reception after receiving B1 blocks and switches from the reception stage to the encoding and forwarding stage under control of the error detection and decision stage.

主权项

1. A relaying method performed by a half duplex relay for a telecommunications system comprising a plurality of sources, the relay, and a destination, the method comprising:
a reception stage of receiving codewords transmitted by the sources during N uses of the transmission channel, the successive codewords transmitted by a source corresponding to B blocks, the first of which can be decoded independently of the other blocks, the reception stage including a decoding step of estimating a message from each source on the basis of received codewords, the message being associated with the codewords transmitted by the source; an error detection and decision-taking step performed by the relay on messages that are decoded without error; and a stage of encoding a signal and forwarding it to the destination, which signal is representative of only those messages that have been decoded without error; such that the relay passes from non-selective reception to selective reception after receiving B1 blocks and switches from the reception stage to the encoding and forwarding stage under the control of the error detection and decision step, where 1≦B12.