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Mitigating interferences for a multi-layer MIMO system augmented by radio distribution network

  • US 8,811,522 B2
  • Filed: 10/31/2013
  • Issued: 08/19/2014
  • Est. Priority Date: 05/29/2012
  • Status: Expired due to Fees
First Claim
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1. A wireless User Equipment (UE) receiving system comprising:

  • two or more beamformers, each beamformer having a plurality of tunable receiving antennas; and

    a control module configured to;

    carry out a periodic, non-continuous channel estimation on a plurality of desired signals and a plurality of undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of antennas; and

    identify the undesired co-channel downlink signals having a strongest interference level,wherein the control module is configured to select between two alternative weights tuning based on highest signal plus interference to noise ratio (SINR) by;

    tuning said plurality of tunable receiving antennas so as to maximize a total average power of said desired signals; and

    tuning said plurality of tunable receiving antennas so as to minimize a total average power of the identified undesired co-channel downlink signals having the strongest interference level.

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