Method and apparatus for controlling random access in wireless communication system supporting carrier aggregation

摘要

A random access procedure control method and apparatus is provided for controlling a random access procedure efficiently in a mobile communication system supporting carrier aggregation. The method for controlling random access procedure of a terminal in a wireless communication system having a primary cell and at least one secondary cell includes initiating a random access procedure in the primary cell and the at least one secondary cells, detecting a random access failure of a terminal performing the random access procedure, determining whether the random access failure is detected in the primary cell or the at least one secondary cell, and determining whether to continue the random access procedure according to a result of the determining of whether the random access failure is detected.

主权项

1. A method in a wireless communication system, the method comprising:
transmitting, by a terminal, a random access preamble on a primary cell or a secondary cell; determining, by the terminal, a random access problem is detected based on a number of transmissions of the random access preamble; indicating, by the terminal, the random access problem to upper layers and performing a radio resource control (RRC) connection re-establishment procedure if the random access preamble is transmitted on the primary cell; and stopping a random access procedure if the random access preamble is transmitted on the secondary cell.