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Method and radio node for handling CSI reporting

  • US 10,575,202 B2
  • Filed: 01/16/2019
  • Issued: 02/25/2020
  • Est. Priority Date: 08/15/2013
  • Status: Active Grant
First Claim
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1. A method performed by a User Equipment, UE, to handle separate aperiodic channel state information, CSI, reports for one or more static subframes, in which the direction of signal transmission is fixed, and one or more flexible subframes, in which the direction of signal transmission is variable, the method comprising:

  • receiving a trigger for an aperiodic CSI report as part of an uplink, UL, grant from a radio node in a static downlink, DL, subframe, said trigger indicating a CSI subframe set related to the one or more static subframes;

    reporting to the radio node, in a CSI reporting subframe, a result of an aperiodic CSI measurement for a CSI reference in the CSI subframe set;

    receiving a second trigger for a second aperiodic CSI report as part of a second UL grant from the radio node in a second static DL subframe, said second trigger indicating a second CSI subframe set that relates to the one or more flexible subframes; and

    reporting to the radio node, in a second CSI reporting subframe, a result of a second aperiodic CSI measurement for a second CSI reference in the second CSI subframe set.

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