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Systems and Methods for Reference Signals and CSI Feedback

  • US 20180262938A1
  • Filed: 05/14/2018
  • Published: 09/13/2018
  • Est. Priority Date: 03/16/2012
  • Status: Active Grant
First Claim
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1. A method, by a user equipment (UE) for wireless communications, the method comprising:

  • receiving, from a network, a first set of first indexes that each indicates a corresponding non-zero-power CSI reference signal (CSI-RS) resource, a second set of second indexes that each indicates a corresponding zero-power CSI-RS resource, a third set of third indexes that each indicates a corresponding CSI interference measurement (CSI-IM) resource, and a fourth set of fourth indexes that each indicates a corresponding report configuration;

    performing an interference measurement according to at least one report configuration of the report configurations indicated by the fourth set of indexes, wherein the at least one report configuration is associated with;

    in response to a channel measurement resource and an interference measurement resource being configured for the at least one report configuration by the network, at least one of a subset of the non-zero-power CSI-RS resources indicated by the first indexes and a subset of the CSI-IM resources indicated by the third indexes; and

    in response to only the channel measurement resource being configured for the at least one report configuration by the network, only a subset of the non-zero-power CSI-RS resources indicated by the first indexes; and

    reporting a CSI to the network according to the interference measurement.

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