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Communication apparatus and method that can promptly and efficiently perform decoding/processing of a downlink control information that is related to a search space

  • US 9,258,763 B2
  • Filed: 11/25/2010
  • Issued: 02/09/2016
  • Est. Priority Date: 11/30/2009
  • Status: Active Grant
First Claim
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1. A mobile station apparatus that is configured to communicate with a base station apparatus, the mobile station apparatus comprising:

  • a reception unit configured to perform detecting of Downlink Control Information with CRC (cyclic redundancy check) bits scrambled by C-RNTI (cell-radio network temporary identity) in a first search space which is commonly determined for mobile station apparatuses in a cell and a second search space which is a mobile station apparatus specific search space determined based on at least the C-RNTI; and

    the reception unit configured to perform detecting of the Downlink Control Information with the CRC bits scrambled by the C-RNTI in a third search space which is different from the first search space and the second search space, the third search space being configured by using at least a dedicated RRC (Radio Resource Control) signaling which includes at least information indicating a location of the third search space, whereinthe first search space, the second search space and the third search space are configured in a same component carrier.

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