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Cognitive interference management in wireless networks with relays, macro cells, micro cells, pico cells and femto cells

  • US 9,661,643 B2
  • Filed: 03/18/2015
  • Issued: 05/23/2017
  • Est. Priority Date: 03/20/2009
  • Status: Active Grant
First Claim
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1. A method for interference management in heterogeneous/homogeneous communication networks, wherein the communication networks comprise one or more Base Stations (BS), Relay Stations (RS), Femto Base Stations (FBS), Pico Base Stations (PBS), and Micro Base Stations (MBS), said method comprising:

  • a plurality of User Equipment (UEs) performing interference measurement for a specific group of said BS, RS, FBS, PBS, and MBS and said UE sending said interference measurement to a serving BS;

    said serving BS classifying each of the UEs as either a victim UE of said BS, RS, FBS, PBS, and MBS or as a safe UE based on the measurement received from said UEs;

    said serving BS sending to each of said BS, FBS, PBS, and MBS a list of victim UEs, and said RS either receiving a list of its victim UEs from said serving BS or from uplink (UL) signaling; and

    each of said BS, RS, FBS, PBS, and MBS performing resource allocation for said UEs of said BS, RS, FBS, PBS, and MBS, wherein a set of resources in said resource allocation is partially or completely orthogonal to resources in time and/or frequency and/or code and/or space utilized by said victim UEs of said BS, RS, FBS, PBS, and MBS.

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