Patent ID: 9100165
Filing Date: 2015-08-04
Classification: H03H,H04L

Abstract:
1. A method for direct data recovery using parameters of cycles or half-cycles of (tones (DDR PCT) of a received orthogonal frequency division multiplexing (OFDM) signal, wherein the parameters are derived and outputted by a transmission system which includes a coding circuit encoding transmitted data symbols into a transmitted OFDM signal, a transmission link transforming the transmitted OFDM signal into the received OFDM signal and introducing deterministic or random distortions affecting the received OFDM signal, a processor deriving the parameters from the received OFDM signal wherein subranges of the parameters correspond to the transmitted data symbols; wherein the DDR PCT method comprises the steps of: deriving references defining the subranges; deriving an assignment of the transmitted data symbols to the defined subranges; processing, using the processor, the received OFDM signal in order to derive the parameters characterizing amplitudes and phases of the cycles or the half-cycles of the tones; using the references for identifying the defined subranges comprising the derived parameters; applying the derived assignment to the identified subranges in order to recover the transmitted data symbols, wherein the derived parameters and the identified subranges remain affected by the deterministic or random distortions.