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Aperiodic channel state information (CSI) reporting for carrier aggregation

  • US 9,883,491 B2
  • Filed: 05/11/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 01/29/2015
  • Status: Active Grant
First Claim
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1. A user equipment (UE), comprising:

  • a receiver circuit configured to receive transmissions via a plurality of serving cells according to a carrier aggregation (CA) mode and to receive an aperiodic channel state information (CSI) reporting request that indicates a set for CSI reporting, wherein the plurality of serving cells comprises more than five serving cells, wherein the more than five serving cells comprise at most thirty-two serving cells, and wherein one or more of the plurality of serving cells is associated with the indicated set;

    a processor operably coupled to the receiver circuit and configured to;

    calculate one or more CSI parameters for each serving cell of the plurality of serving cells that is associated with the indicated set; and

    generate an aperiodic CSI report based at least in part on the calculated CSI parameters for each serving cell associated with the indicated set; and

    a transmitter circuit configured to transmit the aperiodic CSI report to an Evolved NodeB (eNB) via a physical uplink shared channel (PUSCH).

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