Method and apparatus for transceiving a downlink control channel in a wireless communication system

摘要

The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving a downlink control channel. According to one embodiment of the present invention, a method in which a base station transmits a downlink control channel to a terminal in a wireless communication system comprises the steps of: transmitting one or more enhanced-physical downlink control channels (E-PDCCHs) within a resource region allocable for an E-PDCCH; and transmitting E-PDCCH allocation resource information for the one or more E-PDCCHs to the terminal. The E-PDCCH allocation resource information indicates the resource in which the one or more E-PDCCHs exist from among the resource region allocable to the E-PDCCH. An effective physical downlink shared channel (PDSCH) allocation resource region for the terminal can be determined on the basis of the E-PDCCH allocation resource information.

主权项

1. A method for transmitting a downlink control channel by a base station to a user equipment (UE) in a wireless communication system, the method comprising:
transmitting, by the base station, enhanced physical downlink control channel (E-PDCCH) allocation resource information, through a RRC (Radio Resource Control) message, indicating E-PDCCH resource regions in which one or more E-PDCCHs can be transmitted to the UE; transmitting, by the base station, the one or more E-PDCCHs to the UE, wherein each of the one or more E-PDCCHs includes downlink control information (DCI) on a first E-PDCCH resource region, wherein a valid physical downlink shared channel (PDSCH) allocation resource region for the UE is a resource region that excludes the first E-PDCCH resource region, and wherein the first E-PDCCH resource region is identified by blind decoding by the UE, and wherein the DCI of each of the one or more E-PDCCHs includes information on a second E-PDCCH resource region other than the first E-PDCCH resource region.