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Method for forming resource block for search region in downlink control channel in wireless communication system, and apparatus therefor

  • US 9,844,044 B2
  • Filed: 04/02/2013
  • Issued: 12/12/2017
  • Est. Priority Date: 04/02/2012
  • Status: Active Grant
First Claim
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1. A method for receiving an EPDCCH (Enhanced Physical Downlink Control Channel) from a base station by a user equipment (UE) in a wireless communication system, the method comprising:

  • defining a first number of EREGs (Enhanced Resource Element Groups) in each of physical resource block (PRB) pairs for the EPDCCH; and

    receiving the EPDCCH by monitoring EPDCCH candidates comprising one or more ECCEs (Enhanced Control Channel Elements) in the PRB pairs,wherein each of the one or more ECCEs comprises a second number of EREGs,wherein a spacing of indexes of the second number of EREGs included in each of the one or more ECCEs is determined based on a number of ECCEs per PRB pair, regardless of whether the one or more ECCEs are configured as localized ECCEs or distributed ECCEs, andwherein, when an index of the ECCE is 0, the indexes of the second number of EREGs included in the ECCE configured as the localized ECCEs are the same as the indexes of the second number of EREGs included in the ECCE configured as the distributed ECCEs.

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