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Multiple-input multiple-output communication system

  • US 20080107202A1
  • Filed: 10/02/2007
  • Published: 05/08/2008
  • Est. Priority Date: 11/07/2006
  • Status: Abandoned Application
First Claim
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1. A multiple-input multiple-output (MIMO) communication system comprising a base station and a relay station that are connected through an optical fiber, said MIMO communication system wirelessly transmitting through a plurality of antennas at the relay station a signal received from the base station, wherein the base station comprises:

  • a plurality of symbol mappers mapping input bit streams into respective symbol signals;

    a MIMO multiplexer for generating a plurality of respective exchange signals by exchanging bits of the respective symbol signals; and

    a plurality of code spreaders for generating a plurality of spread signals by band spreading the exchange signals.

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