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Quasi co-location and PDSCH resource element mapping signaling for network assisted interference mitigation

  • US 10,103,797 B2
  • Filed: 12/16/2013
  • Issued: 10/16/2018
  • Est. Priority Date: 03/01/2013
  • Status: Active Grant
First Claim
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1. An apparatus to be employed in user equipment, the apparatus comprising:

  • channel determination circuitry to;

    receive, from an access node associated with a serving cell of a radio access network (RAN), downlink channel information associated with an interfering cell; and

    determine, based on the downlink channel information, downlink parameters of the interfering cell, the downlink parameters including an indicator to indicate;

    whether an antenna port used for a reference signal or a physical downlink shared channel (PDSCH) in the interfering cell is quasi co-located with another antenna port;

    or an interfering PDSCH resource element (RE) mapping; and

    interference estimation circuitry coupled with the channel determination circuitry, the interference estimation circuitry to estimate an interference profile associated with the interfering cell based on the determined downlink parameters of the interfering cell, wherein the downlink parameters of the interfering cell include;

    a number of common reference signal (CRS) antenna ports for the interfering PDSCH RE mapping;

    a CRS frequency shift for the interfering PDSCH RE mapping;

    a multicast-broadcast single-frequency network (MBSFN) subframe configuration for the interfering PDSCH RE mapping;

    a zero-power channel state information-reference signal (CSI-RS) resource configuration for the interfering PDSCH RE mapping;

    a non zero-power CSI-RS resource configuration for the interfering PDSCH RE mapping; and

    /ora PDSCH starting position for the interfering PDSCH RE mapping.

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