Multi-band transmission system

A method, comprising:

• separating data into a plurality of frequency bands, wherein each frequency band has an associated symbol time, and each associated symbol time is a whole multiple of one half of a smallest symbol time of all of the frequency bands;
• and
• multiplexing the data into a plurality of spatial channels;
• and
• providing the data in the plurality of frequency bands and the plurality of spatial channels to a transmission medium.

A system, comprising:

• a receiver device including:
• a plurality of receive chains including a set of first receive chains associated with a first frequency band and a set of one or more second receive chains associated with a second frequency band;
• and
• a multiple input, multiple output (MIMO) processing block configured to demultiplex a plurality of spatial channels on the plurality of frequency bands,
• wherein:
• the plurality of frequency bands have been transmitted by a transmitter device i) utilizing a plurality of first transmit chains corresponding to the first frequency band, and ii) utilizing a plurality of second transmit chains corresponding to the second frequency band,
• a number of receive chains in the set of first receive chains is different than a number of transmit chains in the plurality of first transmit chains, and
• a number of receive chains in the set of one or more second receive chains is different than a number of transmit chains in the plurality of second transmit chains.

A method, comprising:

• receiving, at a receiver device, signals transmitted via a plurality of frequency bands by a transmitter using respective sets of one or more transmit chains, including via a first frequency band by the transmitter using a set of first transmit chains, and via a second frequency band by the transmitter using a set of second transmit chains;
• processing the signals at the receiver using a plurality of receive chains, including
• using a set of first receive chains associated with the first frequency band, and
• using a set of one or more second receive chains associated with the second frequency band, wherein
• the number of receive chains in the first set of receive chains is different than the number of transmit chains in the first set of transmit chains, and
• the number of receive chains in the second set of receive chains is different than the number of transmit chains in the second set of transmit chains;
• and
• performing multiple input, multiple output (MIMO) processing on outputs of the set of first receive chains.