Method and wireless device for monitoring downlink control channel

摘要

Provided are a method and a wireless device for monitoring a downlink control channel in a wireless communication system. The wireless device monitors a first downlink control channel in a first search space, and monitors a second downlink control channel in a second search space. The first downlink control channel is modulated by a first reference signal, which is generated on the basis of an identifier of a first serving cell, and the second downlink control channel is modulated by a second reference signal, which is generated on the basis of an identifier of a second serving cell.

主权项

1. A method of monitoring an enhanced physical downlink control channel (EPDCCH) in a wireless communication system, the method comprising:
receiving, by a wireless device from a base station, a radio resource control (RRC) signal, the RRC signal including first information indicating at least one subframe on which at least one EPDCCH is monitored and second information on a first search space and a second search space; monitoring, by the wireless device, a first EPDCCH in the first search space on the at least one subframe indicated by the first information; and monitoring, by the wireless device, a second EPDCCH in the second search space on the at least one subframe indicated by the first information, wherein the first EPDCCH is set to a local mode and is demodulated by a first demodulation reference signal (DMRS), and wherein the second EPDCCH is set to a distributed mode and is demodulated by a second DMRS.