Method and apparatus for transmission and reception in multi-carrier wireless communication systems

  • US 10,075,946 B2
  • Filed: 07/03/2017
  • Issued: 09/11/2018
  • Est. Priority Date: 06/08/2010
  • Status: Active Grant
First Claim
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1. A communication apparatus, comprising:

  • a memory; and

    a processor operably coupled to the memory,wherein the processor, when executing program instructions stored in the memory, is configured to;

    cause the communication apparatus to monitor Physical Downlink Control Channel (PDCCH) candidates in Common Search Space (CSS) and User equipment-specific Search Space (USS), wherein the PDCCH candidates include a first PDCCH candidate in the CSS and a second PDCCH candidate in the USS; and

    cause the communication apparatus to select the first PDCCH candidate as PDCCH transmitted from an e-Node B (eNB) if the first PDCCH candidate and the second PDCCH candidate satisfy a first set of conditions,wherein the first set of conditions includes;

    (1) Cyclic redundancy check (CRC) of the first PDCCH candidate and CRC of the second PDCCH candidate are scrambled by a same Radio Network Temporary Identifier (RNTI),(2) the first PDCCH candidate and the second PDCCH candidate have a same payload size,(3) the first PDCCH candidate and the second PDCCH candidate have a same first Control Channel Element (CCE) index, and(4) the communication apparatus is configured with a carrier indicator field.

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