Method and device for monitoring downlink control channel in wireless communication system

摘要

A method and device for monitoring a control channel in a wireless communication system are provided. In particular, in consideration of multiple carrier aggregation, indication information is provided which includes information on a cell for monitoring a downlink control channel and information on a channel type defined to identify whether a downlink control channel to be transmitted from a corresponding cell is a legacy PDCCH (LPDCCH) or an enhanced PDCCH (EPDCCH). The indication information may be set in consideration of whether to arrange cross carrier scheduling. Thus, a terminal uses the indication information to adaptively monitor LPDCCH and/or EPDCCH through a predetermined search section of a corresponding cell. Thus, it is possible to adaptively schedule a downlink control channel and an enhanced downlink control channel.

主权项

1. A method for monitoring a control channel in a wireless communication system, the method comprising:
receiving, by a user equipment (UE), indication information including channel type information indicating a type of a downlink control channel to be monitored and cell information indicating a cell for monitoring the downlink control channel; and monitoring, by the UE, the downlink control channel having the type indicated by the channel type information in the cell indicated by the cell information, wherein the indication information is defined with a length varying depending on a configuration of cross carrier scheduling, wherein the type of the downlink control channel includes a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH), and wherein the indication information is defined with a length varying depending on a number of secondary cells aggregated according to carrier aggregation.