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Method and device for transmitting control information in wireless communication system

  • US 9,844,030 B2
  • Filed: 03/14/2012
  • Issued: 12/12/2017
  • Est. Priority Date: 03/14/2011
  • Status: Active Grant
First Claim
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1. A method of receiving downlink information at a user equipment (UE) configured with a plurality of cells in a wireless communication system, the method comprising:

  • receiving, by the UE, a Radio Resource Control (RRC) signaling indicating specific subframes in which the UE monitors UE specific search spaces,wherein each of the UE specific search spaces is associated with a respective carrier indicator field (CIF) value; and

    monitoring, by the UE, at least one first physical downlink control channel (PDCCH) candidate, in the specific subframes indicated by the RRC signaling, for a first cell among the plurality of cells,wherein the monitoring, by the UE, of the at least one first PDCCH candidate is for the first cell in two or more UE specific search spaces for PDCCH candidates havingdifferent CIF values andthe same downlink control information (DCI) format size,wherein the at least one first PDCCH candidate is monitored, by the UE, on a first region other than a control region on which a second PDCCH different from a first PDCCH is monitored, by the UE, in the specific subframes, andwherein the UE only monitors the at least one second PDCCH candidate for the first cell without monitoring the at least one first PDCCH candidate for the first cell in subframes other than the specific subframes indicated by the RRC signaling.

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