×

Method and apparatus for determining application time of CSI report, and device

  • US 10,616,785 B2
  • Filed: 10/09/2017
  • Issued: 04/07/2020
  • Est. Priority Date: 04/10/2015
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising:

  • receiving, by user equipment (UE), a configuration message sent by a base station;

    determining, by the UE according to the configuration message, which secondary cells report channel status information (CSI) CSI reports using a physical uplink control channel (PUCCH) of a primary cell and which secondary cells report CSI reports using a PUCCH of a first secondary cell different from the PUCCH of the primary cell;

    receiving, by the UE, a secondary cell activation command that is sent by the base station and that carries a cell identity corresponding to a second secondary cell; and

    determining, by the UE, according to whether a type of a PUCCH used by the second secondary cell to report a CSI report is the PUCCH of the primary cell or the PUCCH of the first secondary cell and according to the secondary cell activation command, an application time of the CSI report of the second secondary cell;

    wherein the determining the application time of the CSI report of the second secondary cell corresponding to the cell identity comprises;

    when the type of the PUCCH used by the second secondary cell corresponding to the cell identity to report the CSI report is the PUCCH of the first secondary cell, determining, by the UE, whether the first secondary cell is in an active state;

    when the first secondary cell is in the active state, starting, by the UE at a preset time point after the secondary cell activation command is received, to apply the CSI report of the second secondary cell corresponding to the cell identity; and

    when the first secondary cell is in an inactive state, determining, by the UE according to an application time of a CSI report of the first secondary cell, the application time of the CSI report of the second secondary cell corresponding to the cell identity.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×