Method and device for transmitting and receiving wireless signal in wireless communication system
The present invention relates to a wireless communication system and particularly to a method and a device therefor, the method comprising the steps of: detecting an SSB, the SSB comprising 15 kHz-granularity-based offset information; determining, on the basis of the 15 kHz-granularity-based offset information, a subcarrier offset used to identify the frequency position of a CORESET linked to the SSB; and monitoring, on the basis of the subcarrier offset, the CORESET linked to the SSB.
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
detecting a synchronization signal/physical broadcast channel (SS/PBCH) block including 15 kHz subcarrier spacing-based offset information;
determining a control resource set (CORESET) for Type0-physical downlink control channel (PDCCH) common search space (CSS) set based on the SS/PBCH block,
wherein a subcarrier offset between the CORESET for Type0-PDCCH CSS set and the SS/PBCH block is determined based on the 15 kHz subcarrier spacing-based offset information;
monitoring the CORESET for Type0-PDCCH CSS set,
wherein, based on the SS/PBCH block detected in a shared spectrum, a frequency of the SS/PBCH block is separated from a synchronization raster by k*30 kHz, where k is an integer greater than or equal to zero, and one least significant bit (LSB) of the subcarrier offset is ‘0’.
2. The method of claim 1 ,
wherein the subcarrier offset indicates a multiple of 30 kHz.
3. The method of claim 1 ,
wherein 4 LSBs of the subcarrier offset are determined based on a higher-layer parameter, ssb-SubcarrierOffset.
4. The method of claim 1 ,
wherein based on the SS/PBCH block being detected in the shared spectrum, the one LSB of the 15 kHz subcarrier spacing-based offset information is used to identify SS/PBCH block candidates in a quasi-co-location (QCL) relationship.
5. A user equipment (UE) for use in a wireless communication system, the UE comprising:
at least one processor; and
at least one computer memory operably connected to the at least one processor and configured to, when executed, cause the at least one processor to perform operations comprising:
detecting a synchronization signal/physical broadcast channel (SS/PBCH) block including 15 kHz subcarrier spacing-based offset information;
determining a control resource set (CORESET) for Type0-physical downlink control channel (PDCCH) common search space (CSS) set based on the SS/PBCH block,
wherein a subcarrier offset between the CORESET for Type0-PDCCH CSS set and the SS/PBCH block is determined based on the 15 kHz subcarrier spacing-based offset information;
monitoring the CORESET for Type0-PDCCH CSS set,
wherein, based on the SS/PBCH block detected in a shared spectrum, a frequency of the SS/PBCH block is separated from a synchronization raster by k*30 kHz, where k is an integer greater than or equal to zero, and one least significant bit (LSB) of the subcarrier offset is ‘0’.
6. The UE of claim 5 ,
wherein the subcarrier offset indicates a multiple of 30 kHz.
7. The UE of claim 5 ,
wherein 4 LSBs of the subcarrier offset are determined based on a higher-layer parameter, ssb-SubcarrierOffset.
8. The UE of claim 5 ,
wherein based on the SS/PBCH block being detected in the shared spectrum, the one LSB of the 15 kHz subcarrier spacing-based offset information is used to identify SS/PBCH block candidates in a quasi-co-location (QCL) relationship.