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Search space determination

  • US 8,755,348 B2
  • Filed: 03/28/2012
  • Issued: 06/17/2014
  • Est. Priority Date: 11/04/2011
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • an encoder configured to;

    determine a set of search space candidates of an enhanced-physical downlink control channel (E-PDCCH) based on an aggregation level of downlink control information (DCI), predetermined spacing between adjacent search space candidates, and a number of virtual resource blocks (VRBs) of the E-PDCCH, the set of search space candidates to be potential bearers of DCI;

    select one or more VRBs from the set of search space candidates; and

    encode DCI onto the selected VRBs; and

    a mapper configured to map the VRBs of the E-PDCCH to physical resource blocks (PRBs) for transmission to a user equipment in a downlink frame,wherein the predetermined spacing is to provide an even distribution of the search space candidates across VRBs of the E-PDCCH to enable a frequency scheduling gain.

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