METHOD AND APPARATUS FOR ACTIVATING CARRIERS IN A MOBILE COMMUNICATION SYSTEM

摘要

The present invention relates to a method and apparatus for activating carriers in a mobile communication system, and includes determining, when an instruction message for aggregating multiple carriers is received, a bit position per carrier according to an identifier per carrier in the instruction message; checking, when a carrier state message including a state bitmap indicating state per carrier, the state per carrier according to the bit position per carrier in the state bitmap; and activating/deactivating the carriers according to the per-carrier states. According to the present invention, it is possible to minimize signaling overhead caused by carrier activation and deactivation.

主权项

1. A communication method of a terminal in a mobile communication system, the method comprising:
receiving a first message from a base station on a higher layer signal, the first message including an index for at least one secondary cell (SCell) to be configured; receiving a second message from the base station, the second message including information indicating activation or deactivation for each of the at least one SCell; and activating or deactivating the at least one SCell based on the first message and the second message, wherein the second message includes a bitmap, each bit of the bitmap indicating activating or deactivating an SCell with an index corresponding to a bit position of the each bit of the bitmap, and wherein the first message further includes a physical cell identity (ID) corresponding to the index for the at least one SCell and information on a carrier frequency corresponding to the index for the at least one SCell.