Patent ID: 8693575
Filing Date: 2014-04-08
Classification: H04B,H04L

Abstract:
1. A wireless transmitter comprising: plural input serial data bit streams; bit allocation blocks having inputs coupled to the input serial data streams and having outputs, the bit allocation blocks apportioning data bits among available tones and each bit allocation block outputting a quadrature amplitude modulation (QAM) constellation signal point for each tone; tone group precoding matrix blocks having inputs coupled to the outputs of the bit allocation blocks and having outputs, the tone group precoding matrix blocks distributing signal energy across the tone groups for each of the multiple data streams to distribute the data bits across multiple tones and maximize the communications bandwidth of the system; antenna precoding matrix blocks having inputs coupled to the outputs of the tone group precoding matrix blocks and having outputs, the antenna precoding matrix blocks being applied to the tones to distribute the energy of the tones across the outputs of the antenna precoding matrix blocks to distribute the data bits across multiple antennas and maximize the communications bandwidth of the system; and inverse fast Fourier Transform and parallel to serial blocks having inputs coupled to the outputs of the antenna precoding matrix blocks.