METHOD AND APPARATUS FOR IDENTIFYING A DOWNLINK MESSAGE RESPONSIVE TO RANDOM ACCESS PREAMBLES TRANSMITTED IN DIFFERENT UPLINK CHANNELS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION, PARTICULARLY FOR DETERMINING AN UPLINK CHANNEL USED IN A RANDOM ACCESS PROCEDURE

摘要

PURPOSE: A method and apparatus for identifying a downlink message responsive to random access preambles transmitted in different uplink channels in a mobile communication system supporting carrier aggregation are provided to identify downlink messages in correspondence to random access preambles transferred to the different uplink channels.;CONSTITUTION: A transceiver(605) transfers a preamble to a BS(Base Station) through at least one channel among plural channels, and receives a response from the BS. A message analysis unit(620) classifies the response based on an identifier special for a channel resource in order to identify a channel to the preamble is transferred. The message analysis unit determines the identifier by using the channel resource information used in the transmission of the preamble.;COPYRIGHT KIPO 2011