Patent ID: 7203249
Filing Date: 2007-04-10
Classification: H04B,H04L,H04W

Abstract:
1. Apparatus for operating a transmitter to transmit into a channel via a plurality of antenna elements, said apparatus comprising: an information allocation unit that distributes information for transmission among a plurality of spatial subchannels, each spatial subchannel defined by a frequency bin of a plurality of substantially orthogonal frequency bins and by a spatial direction of a set of spatial directions, the distributing in accordance with a measure of the quality of each frequency bin; a plurality of transmit frequency bin to time signal converters to convert the frequency bins for each spatial direction to a time signal; a spatial processor that establishes, for each of said substantially orthogonal frequency bins, said set of spatial directions for communication from said transmitter to at least one receiver by weighting the time signals for each spatial direction subchannels by transmit weights corresponding to said plurality of antenna elements; a modulation and RF system that transmits said weighted signals via said plurality of antenna elements to send said information for transmission via said plurality of spatial subchannels.