Method and apparatus for transmitting/receiving wireless signal in wireless communication system
According to one embodiment of the present invention, a method by which a wireless communication apparatus receives a signal comprises: monitoring control channel candidates in a bandwidth part (BWP) comprising one or more sub-bands (SBs), on the basis of a control channel search-space set (SS) configuration and a control resource set (CORSET) configuration that are associated with each other; and obtaining control information from the control channel detected as the result of monitoring the candidates, wherein, in monitoring of the candidates, the wireless communication apparatus sets the CORESET frequency resource region of each SB in the BWP on the basis of the CORESET frequency resource region of a specific SB in the BWP, and the specific SB can be restricted to one SB located in the lowest frequency, from among the one or more SBs included in the BWP.
1. A method of receiving a signal by a wireless communication device, the method comprising:
monitoring control channel candidates in a bandwidth part (BWP) including a plurality of subbands (SBs) based on a control channel search space set (SS) configuration and a control resource set (CORESET) configuration which are associated with each other; and
obtaining control information from a control channel detected as a result of monitoring the control channel candidates,
wherein every CORESET frequency resource area in every SB of the BWP is configured based on a CORESET frequency resource area of only one SB located at a lowest frequency among the plurality of SBs included in the BWP.
2. The method according to claim 1 , wherein each SB corresponds to a resource block (RB) set, and the only one SB is an RB set #0 having a lowest index in the BWP.
3. The method according to claim 1 , wherein the control channel SS configuration includes information indicating at least one SB located at a frequency in which the wireless communication device is to monitor the control channel candidates among the plurality of SBs included in the BWP.
4. The method according to claim 3 , wherein the wireless communication device configures a same CORESET frequency resource area as the CORESET frequency resource area of the only one SB in the at least one SB indicated by the control channel SS configuration.
5. The method according to claim 2 , wherein the wireless communication device obtains information about a CORESET frequency resource area of the RB set #0 from the CORESET configuration, and applies the obtained information about the CORESET frequency resource area of RB set #0 commonly to each RB set for monitoring the control channels candidates.
6. The method according to claim 1 , wherein the wireless communication device obtains information about the CORESET frequency resource area of the only one SB from a bitmap indicating CORESET frequency-domain resources included in the CORESET configuration.
7. The method according to claim 1 , wherein each CORESET frequency resource area configured in each SB of the BWP is related to a same one CORESET index.
8. The method according to claim 1 , wherein the wireless communication device applies same antenna port quasi co-location (QCL) information to each CORESET frequency resource area configured in each SB of the BWP.
9. The method according to claim 1 , wherein the wireless communication device wakes up and monitors the control channel candidates during an On Duration of a discontinuous reception (DRX) cycle.
10. The method according to claim 1 , wherein the wireless communication device is a user equipment (UE) configured to operate in a 3rd generation partnership project (3GPP)-based wireless communication system, the control information is downlink control information (DCI), and the control channel is a physical downlink control channel (PDCCH) carrying the DCI.
11. A non-transitory processor-readable recording medium recorded thereon a program for performing the method according to claim 1 .
12. A device configured to process a signal in a wireless communication system, the device comprising:
at least one memory storing one or more instructions; and
at least one processor configured to execute the one or more instructions stored in the at least one memory to perform operations comprising:
monitoring control channel candidates in a bandwidth part (BWP) including a plurality of subbands (SBs) based on a control channel search space set (SS) configuration and a control resource set (CORESET) configuration which are associated with each other, and
obtaining control information from a control channel detected as a result of monitoring the control channel candidates,
wherein every CORESET frequency resource area in every SB of the BWP is configured based on a CORESET frequency resource area of only one SB located at a lowest frequency among the plurality of SBs included in the BWP.
13. A wireless communication device comprising:
a receiver; and
at least one processor configured to control the receiver,
wherein the at least one processor is configured to monitor control channel candidates in a bandwidth part (BWP) including a plurality of subbands (SBs) based on a control channel search space set (SS) configuration and a control resource set (CORESET) configuration which are associated with each other, and obtain control information from a control channel detected as a result of monitoring the control channel candidates,
wherein every CORESET frequency resource area in every SB of the BWP is configured based on a CORESET frequency resource area of only one SB located at a lowest frequency among the plurality of SBs included in the BWP.
14. A method of transmitting a signal by a wireless communication device, the method comprising:
selecting at least one of control channel candidates in a bandwidth part (BWP) including a plurality of subbands (SBs) based on a control channel search space set (SS) configuration and a control resource set (CORESET) configuration which are associated with each other; and
transmitting a control channel carrying control information in the at least one control channel candidate,
wherein every CORESET frequency resource area in every SB of the BWP is configured based on a CORESET frequency resource area of only one SB located at a lowest frequency among the plurality of SBs included in the BWP.
15. A wireless communication device comprising:
a transmitter; and
at least one processor configured to control the transmitter,
wherein the at least one processor is configured to select at least one of control channel candidates in a bandwidth part (BWP) including a plurality of subbands (SBs) based on a control channel search space set (SS) configuration and a control resource set (CORESET) configuration which are associated with each other, and transmit a control channel carrying control information in the at least one control channel candidate,
wherein every CORESET frequency resource area in every SB of the BWP is configured based on a CORESET frequency resource area of only one SB located at a lowest frequency among the plurality of SBs included in the BWP.