SYMBOL PROCESSING IN A BI-DIRECTIONAL COMMUNICATION BY TIME REVERSAL

摘要

According to the invention, in order to process symbols transmitted in frames and separated by front porches through a propagation channel between first and second communicating entities (EC1, EC2) according to a time duplexing, the second entity receives at least one pulse (IMP) emitted from the first entity (EC1). The second entity estimates the pulse response of the propagation channel based on the received pulse, then time-reverses the estimated pulse response in order to filter the symbols depending on the time-reversed pulse response. The second entity then emits the modulated symbols and a second pulse during a front porch in a frame (TR2) to the first entity in order to process the modulated symbols.