PDCCH monitoring method and apparatus in a carrier junction system

摘要

The present invention relates to a PDCCH monitoring method in a carrier junction system, comprising: monitoring a plurality of candidate PDCCHs in an overlapping region between a PDCCH search space of a first component carrier and a PDCCH search space of a second component carrier; and receiving downlink control information through one PDCCH out of the plurality of candidate PDCCHs, which has succeeded in decoding. The PDCCH having succeeded in decoding is a shared PDCCH that contains shared control information, a PDCCH for a self-scheduling component carrier without a carrier indicator field, or a PDCCH for a primary component carrier.

主权项

1. A method for receiving a downlink control information (DCI) from a base station (BS) by a user equipment (UE) in a wireless communication system, the method comprising:
monitoring physical downlink control channel (PDCCH) candidates in a common search space and a UE-specific search space on a serving cell to receive the DCI; and if a plurality of the monitored PDCCH candidates have identical payload sizes in the common search space and the UE-specific search space, determining that only a PDCCH in the common search space is transmitted from among the plurality of the monitored PDCCH candidates.