METHOD FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM

摘要

Provided is a communication system for transmitting a control channel using a downlink. The communication system transmits, to a terminal, uplink-allocation-information transmission or non-transmission information representing whether or not uplink allocation information is transmitted using a downlink; and the terminal determines whether or not a downlink frame includes uplink allocation information on the basis of the uplink-allocation-information transmission or non-transmission information. In addition, a base station transmits, to the terminal, information on resources through which a downlink physical control channel can be transmitted; and the terminal decodes a downlink control channel only within available resources through which a downlink physical control channel can be transmitted.