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Method and apparatus for transmitting/receiving data on multiple carriers in mobile communication system

  • US 9,521,692 B2
  • Filed: 10/24/2014
  • Issued: 12/13/2016
  • Est. Priority Date: 02/06/2012
  • Status: Active Grant
First Claim
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1. A random access method of a terminal in a mobile communication system supporting carrier aggregation, the method comprising:

  • transmitting, on a primary cell, a first random access preamble;

    receiving, on the primary cell, a first control message for a first random access response of the first random access preamble;

    transmitting, on the primary cell, a first physical uplink shared channel (PUSCH) according to a first uplink grant included in the first random access response;

    transmitting, on a secondary cell, a second random access preamble;

    receiving, on the primary cell, a second control message for a second random access response of the second random access preamble; and

    transmitting, on the secondary cell, a second PUSCH according to a second uplink grant included in the second random access response.

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