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 for controlling a random access procedure by a terminal in a wireless communication system, the method comprising:
transmitting a random access preamble to a base station; determining whether a number of transmissions of the random access preamble reaches a predetermined value; determining whether the random access preamble is transmitted on a primary cell or a secondary cell if the number of transmissions of the random access preamble reaches the predetermined value; indicating the random access problem to upper layers if the random access preamble is transmitted on the primary cell; and determining that the random access procedure is completed if the random access preamble is transmitted on the secondary cell.