Patent ID: 7558347
Filing Date: 2009-07-07
Classification: H04B,H04L

Abstract:
1. Method of evaluating received signals for a device comprising: receiving a signal modulated simultaneously over a plurality of carriers, each carrier transporting a sequence of symbols, all the symbols transmitted simultaneously over all the carriers forming a series of symbols, separately evaluating the signal received by both a first antenna and a second antenna along a common evaluation path, the evaluation for the signal received at each of the first and second antennas being carried out for at least one evaluation period, wherein, for the evaluation period: a confidence indicator is determined for the signal corresponding to each carrier and to each symbol received, the symbols received are then transformed into a bitstream to which a stream of confidence indicators is allocated, each confidence indicator being allocated to a bit of a received symbol, the stream of confidence indicators being ordered identical to the bitstream, sliding averages are then determined, the sliding averages being obtained from a number of confidence indicators from said stream of confidence indicators, this number being less than the total number of bits which can be transmitted simultaneously over the plurality of carriers, and selecting one of the first and second antennas according to the separate evaluation for the signal received at each of the first and second antennas.