Method for receiving downlink control information by UE in wireless communication system, and apparatus for same
The present invention relates to a method for receiving control information by a UE in a wireless communication system, and an apparatus for same. More specifically, the method includes a step of receiving reconfiguration downlink control information (DCI), wherein the reconfiguration DCI includes a plurality of reconfigurations relating to a UE group including the UE and is configured so as to be received on the basis of a radio network temporary identifier (RNTI) defined for the reconfiguration DCI.
1. A method for receiving downlink control information (DCI) by a user equipment (UE) served by a plurality of cells in a wireless communication system, the method comprising:
receiving Radio Resource Control (RRC) configuration information including Radio Network Temporary Identifier (RNTI) information used for resource format indication;
receiving a Physical Downlink Control Channel (PDCCH) including the DCI related to the resource format indication using the RNTI,
wherein the DCI included in the PDCCH includes a plurality of resource format indicators related to reconfiguration of uplink-downlink configurations (UL-DL configurations),
wherein each of the plurality of resource format indicators is related to one of a plurality of uplink-downlink (UL-DL) configurations for the plurality of cells,
communicating, with one cell of the plurality of cells, based on a UL-DL configuration reconfigured based on one resource format indicator pre- configured for the one cell among the plurality of resource format indicators,
wherein the RRC configuration information further includes a predetermined offset value, and
wherein the DCI is monitored during a period determined based on the predetermined offset value.
2. The method according to claim 1 , wherein a number of the plurality of resource format indicators is determined according to a size related to a format for the DCI.
3. The method according to claim 1 , wherein the DCI is received through a common search space of the plurality of cells.
4. The method of claim 1 , wherein each of the plurality of resource format indicators is pre-configured for a corresponding one of the plurality of cells based on other RRC configuration information.
5. The method of claim 1 , wherein a PDSCH (Physical Downlink Shared Channel) is received only from a resource indicated as a downlink by a resource format indicator.
6. A user equipment (UE), served by a plurality of cells, for receiving downlink control information (DCI) in a wireless communication system, the UE comprising:
a transmitter and a receiver; and
a processor coupled to the transmitter and receiver,
wherein the processor is configured to:
control the receiver to receive Radio Resource Control (RRC) configuration information including Radio Network Temporary Identifier (RNTI) information used for resource format indication,
control the receiver to receive a Physical Downlink Control Channel (PDCCH) including the DCI related to the resource format indication using the RNTI,
wherein the DCI included in the PDCCH includes a plurality of resource format indicators,
wherein each of the plurality of resource format indicators is related to one of a plurality of uplink-downlink (UL-DL) configurations for the plurality of cells; and
communicate, with one cell of the plurality of cells, based on a UL-DL configuration reconfigured based on one resource format indicator pre-configured for the one cell among the plurality of resource format indicators,
wherein the RRC configuration information further includes a predetermined offset value, and
wherein the DCI is monitored during a period determined based on the predetermined offset value.