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METHOD AND APPARATUS FOR IMPROVEMENT OF TDD INTER-BAND CARRIER AGGREGATION IN A WIRELESS COMMUNICATION SYSTEM

  • US 20130083708A1
  • Filed: 09/28/2012
  • Published: 04/04/2013
  • Est. Priority Date: 09/30/2011
  • Status: Active Grant
First Claim
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1. A method of Time Division Duplex (TDD) inter-band carrier aggregation in a wireless communication system comprising:

  • aggregating multiple cells with different Time Division Duplex (TDD) uplink (UL)-downlink (DL) configurations;

    transmitting a Physical Uplink Share Channel (PUSCH) transmission on a first cell, the subframe for Hybrid Automatic Repeat and reQuest (HARQ) feedback reception, for the PUSCH in a first cell colliding with a UL subframe in a second cell; and

    performing one ofsetting the corresponding HARQ feedback to Acknowledge (ACK);

    flushing the corresponding HARQ buffer; and

    changing the corresponding HARQ feedback subframe for the PUSCH to another subframe.

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