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Method for receiving downlink control information in wireless communication system and device therefor

  • US 9,769,811 B2
  • Filed: 09/17/2013
  • Issued: 09/19/2017
  • Est. Priority Date: 09/17/2012
  • Status: Active Grant
First Claim
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1. A method for receiving downlink control information by a first user equipment (UE) in a wireless communication system, the method comprising:

  • configuring a start OFDM (Orthogonal Frequency Division Multiplexing) symbol location of a common search space (CSS) in an initial access procedure; and

    monitoring an enhanced physical downlink control channel (EPDCCH) on the CSS,wherein the CSS includes a specific reference signal and downlink control information of the EPDCCH,wherein, if a specific location allocated to the first UE in the initial access procedure is not commonly applicable to a second UE, the specific reference signal is mapped on resource elements excluding the specific location through a puncturing,wherein the downlink control information of the EPDCCH is allocated through a rate matching to a subframe excluding the resource elements to which the specific reference signal is mapped, andwherein the downlink control information is first allocated from the start OFDM symbol location toward a last OFDM symbol of the subframe and then allocated from the start OFDM symbol location toward an initial OFDM symbol of the subframe.

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