APPARATUS AND METHOD OF TRANSMITTING POWER INFORMATION REGARDING COMPONENT CARRIER IN MULTI-COMPONENT CARRIER SYSTEM

摘要

An apparatus and method for transmitting maximum transmit power information in a multi-component carrier system. A method for transmitting power information regarding a component carrier includes: calculating power headroom which can be additionally output from an activated uplink component carrier; calculating maximum transmit power configured for the activated uplink component carrier; generating a medium access control (MAC) message including a first field indicating the power headroom and a second field indicating the maximum transmit power; and transmitting the MAC message to a base station (BS). The BS can know about maximum transmit power of each uplink component carrier, preventing excessive uplink scheduling to thus reduce interference. Also, the BS can clearly know about to which uplink component carrier maximum transmit power is related.