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Method and apparatus for communicating downlink control information in an asymmetric multicarrier communication network environment

  • US 10,033,504 B2
  • Filed: 09/06/2013
  • Issued: 07/24/2018
  • Est. Priority Date: 09/06/2012
  • Status: Active Grant
First Claim
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1. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:

  • identifying a carrier type, of a plurality of carrier types, related to DCI to be transmitted to a mobile station, the plurality of carrier types including a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier;

    encoding the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, the DCI format comprising the sets of fields related to the plurality of carrier types; and

    transmitting the encoded DCI to the mobile station on a downlink control channel,wherein the DCI format further comprises a carrier index field indicating the identified carrier type, andwherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier.

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