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Methods and system for communicating control information using carrier aggregation

  • US 8,817,755 B2
  • Filed: 09/28/2011
  • Issued: 08/26/2014
  • Est. Priority Date: 04/29/2011
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a radio frequency (RF) transceiver to receive a first message over a first carrier in a first band in a downlink sub-frame of a first radio frame in a communications link, the communications link comprising interband carriers aggregated over a primary and a secondary cell;

    a processor; and

    a reply message assignment module operable on the processor to;

    determine a first time division duplex uplink-downlink (UL-DL) configuration in which transmission is received;

    map the first UL-DL configuration to a first UL-DL group of a multiplicity of UL-DL groups, the first UL-DL group comprising a set of UL-DL configurations sharing a common uplink sub-frame set of each radio frame; and

    adjust timing of a reply/acknowledge message to be sent by the transceiver in response to the first message so as to coincide with a predetermined uplink sub-frame of a radio frame.

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