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Method of reference signaling resource allocation for control channel transmission in wireless communication system

  • US 9,167,572 B2
  • Filed: 11/14/2012
  • Issued: 10/20/2015
  • Est. Priority Date: 11/14/2011
  • Status: Active Grant
First Claim
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1. A method for monitoring a control channel by a user equipment in a wireless communication system, the method comprising:

  • receiving configuration information of the control channel from a base station;

    identifying a subframe in which the user equipment monitors the control channel based on the configuration information;

    identifying an aggregation level of the control channel;

    determining a demodulation reference signal (DMRS) port index for monitoring the control channel depending on the identified aggregation level; and

    monitoring the control channel in the subframe using the determined the DMRS port index,wherein at least four DMRS port indices are used for monitoring the control channel if the aggregation level is 1.

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