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System and method for distinguishing between antennas in hybrid MIMO RDN systems

  • US 8,599,955 B1
  • Filed: 02/07/2013
  • Issued: 12/03/2013
  • Est. Priority Date: 05/29/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a multiple-input-multiple-output (MIMO) receiving system having N branches and configured to operate in accordance with a channel estimation MIMO receiving scheme; and

    a radio distribution network (RDN) connected to the MIMO receiving system, the RDN comprising at least one beamformer, being fed by two or more antennas, so that a total number of antennas in the system is M, wherein M is greater than N and wherein N is an integer greater than 1, wherein each of the beamformers includes a combiner configured to combine signals coming from a plurality of antennas associated with the respective beamformer into a single signal, and wherein at least one of the combiners has antenna distinguishing circuitry,wherein the antenna distinguishing circuitry is configured to distinguish between any one of the signals feeding the combiner.

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