Patent ID: 8817902
Filing Date: 2014-08-26
Classification: H04B,H04L

Abstract:
1. A receiving device, comprising: a receiver configured to receive an OFDM symbol that is modulated by phase shift keying; an FFT processor configured to apply an FFT process to the received OFDM symbol to obtain a subcarrier signal; a demapping unit configured to demap the subcarrier signal to generate a bit string; a norm calculator configured to calculate a norm of the subcarrier signal; a weighting factor generator configured to generator a weighting factor by taking statistics of the calculated norm; and a weighting unit configured to obtain a soft decision value by weighting the bit string after demapping based on the weighting factor, wherein the weighting factor generator is configured to generate the weighting factor so that a greater a variation of the norm calculated by the norm calculator, a smaller a likelihood of the soft decision value.