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METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A MOBILE COMMUNICATION SYSTEM

  • US 20150223270A1
  • Filed: 01/29/2015
  • Published: 08/06/2015
  • Est. Priority Date: 01/29/2014
  • Status: Active Grant
First Claim
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1. A method for performing random access in a mobile communication system, the method comprising:

  • receiving a configuration request message for configuring a Serving Cell Group (SCG) from a second eNB located in a service area of a first eNB through the first eNB;

    configuring an SCG cell based on the configuration request message, and sending a configuration response message in response to the configuration request message to the second eNB through the first eNB; and

    performing random access if there is uplink data present on a logic channel (LCH) relocated into the SCG cell.

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