Patent ID: 9485000
Filing Date: 2016-11-01
CPC Classification: H03M,H04B,H04L,H04W

Claim Text:
1. A wireless communication system comprising a transmitting device and a receiving device each including a plurality of antennas, wherein a plurality of transmission streams are subjected to spatial multiplexing and are transmitted in a downlink in which blocks are transmitted from the transmitting device to the receiving device, wherein the transmitting device comprises: a bit separation unit configured to divide a plurality of transmission data series into blocks, wherein each block includes a bit-series item and each block is assigned to a respective one of N power levels, wherein N is an integer number equal to or more than 2; wherein, for each block, the transmitting device comprises: a first encoder to an N-th encoder configured to encode the bit-series item according to an assigned encoding rate; a first modulator to an N-th modulator configured to modulate the plurality of encoded items encoded by the encoders in accordance with an assigned modulation method; and a weighting unit configured to weight, using weight factors, the plurality of modulated items modulated by the modulators in accordance with at least the assigned power level, wherein the plurality of weighted items are subjected to at least one synthesizing process to generate the plurality of transmission streams, and wherein the plurality of transmission streams are spatially multiplexed and transmitted.