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System and method for inter-cell interference avoidance in co-channel networks

  • US 8,442,541 B2
  • Filed: 03/28/2011
  • Issued: 05/14/2013
  • Est. Priority Date: 03/29/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • sensing downlink (DL) interference at a macrocell mobile station of a macrocell network from a femtocell base station of a co-channel femtocell network within a coverage area of the macrocell network, wherein the macrocell mobile station is initially scheduled in the DL in resource blocks spanning a first bandwidth;

    re-scheduling uplink (UL) and DL spectrum resources for the macrocell mobile station to address the interference such that the mobile station is rescheduled in the DL in first resource blocks spanning a second bandwidth that is less than the first bandwidth;

    sensing a change in UL interference at the femtocell base station responsive to the re-scheduling for the macrocell mobile station; and

    re-scheduling femtocell UL and DL spectrum resources for a femtocell mobile station within the femtocell network to address the change in UL interference such that the re-scheduling in the UL for the femtocell network avoids at least some of the first resource blocks.

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