Patent ID: 9130635
Filing Date: 2015-09-08
Classification: H03M,H04B,H04L,H04W

Abstract:
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 included in a transmission data series are subjected to spatial multiplexing and are transmitted in a downlink in which packets are transmitted from the transmitting device to the receiving device, wherein the transmitting device comprises: a bit separation unit configured to divide the transmission data series into N bit-series groups, wherein each bit-series group includes N bit-series items and each bit-series item is assigned to a respective one of N priority levels, wherein N is an integer number equal to or more than 2; wherein, for each bit-series group, the transmitting device comprises: a first priority level encoder to an N-th priority level encoder configured to encode of the N bit-series items according to the assigned priority level; a first priority level modulator to an N-th priority level modulator configured to modulate the plurality of encoded items encoded by the encoder in accordance with the assigned priority level; and a weighting unit configured to weight, using weight factors W wherein the plurality of weighted items are subjected to at least one synthesizing process to generate the plurality of transmission streams, and wherein each of the plurality of synthesized transmission streams is spatially multiplexed and transmitted.