APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING ACTIVATION INDICATOR REGARDING COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM

摘要

A method for supporting activation/deactivation of serving cells by a base station (eNB) in a wireless communication system is provided. The method includes configuring M supportable serving cells in a user equipment (UE), configuring an indicator indicating activation/deactivation of each of the M serving cells, configuring a medium access control (MAC) message which includes a MAC control element (CE) and a logical channel identifier (LCID), the MAC CE including the indicator configured for each of the M serving cells and having a length corresponding to an integer multiple of 8 bits, the LCID indicating that the MAC CE includes the indicator indicating activation/deactivation of each serving cell, and transmitting the configured MAC message to the UE. Accordingly, a control channel or data channel regarding a component carrier is selectively received depending on whether the component carrier is activated. Therefore, decoding overhead of the user equipment may be decreased, and power consumption may be decreased.