Patent ID: 9722683
Date: 2017-08-01
CPC Classifications: H04B,H04L,H04W

Claim:
1. An apparatus of a mobile device, the apparatus comprising: symbol alteration circuitry arranged to generate a group of input symbols comprising a plurality of input symbols from codebits in a bitstream, and map and linearly transform the group of input symbols to form a group of output symbols comprising a plurality of output symbols; a controller to control the symbol alteration circuitry such that the group of input symbols are mixed across a plurality of subcarriers, output symbols on non-adjacent subcarriers carrying redundant information such that fewer than all of the output symbols are sufficient to enable reconstruction of the group of input symbols; multiple-input, multiple-output (MIMO) transmitter circuitry arranged to generate beamformed signals from the group of output symbols, the beamformed signals free from unequal modulation configurations by having a same modulation and coding level and transmit the beamformed signals to another apparatus; and MIMO receiver circuitry arranged to measure a rotated channel from beamformed preambles of received beamformed signals from the other apparatus, and demodulate loaded symbols of the received beatnformed signals using a maximum-likelihood decoder.