Method and device for transmitting and receiving wireless signal in wireless communication system

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

detecting a synchronization signal block (SSB), wherein the SSB includes 15 kHz-subcarrier spacing-based offset information;

based on the 15 kHz-subcarrier spacing-based offset information, determining a value of a subcarrier offset used to identify a frequency location of a control resource set (CORESET) related to the SSB, wherein the 15 kHz-subcarrier spacing-based offset information includes 4 bits of ssb-SubcarrierOffset as least significant bits (LSBs); and

based on the value of the subcarrier offset, monitoring the CORESET related to the SSB,

wherein, based on the SSB being detected in a shared spectrum, (1) a difference between a synchronization raster in the shared spectrum and a center frequency of the SSB is limited to a multiple of 30 kHz, (2) the value of the subcarrier offset indicates only the multiple of 30 kHz based on the 15 kHz-subcarrier spacing-based offset information, and (3) one LSB of the value of the subcarrier offset is ‘0’.

2. The method of claim 1 , wherein based on the SSB being detected in the shared spectrum, the one LSB of the 15 kHz-subcarrier spacing-based offset information is used to identify SSB candidates in a quasi-co-location (QCL) relationship.

3. 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 block (SSB), wherein the SSB includes 15 kHz-subcarrier spacing-based offset information, wherein the 15 kHz-subcarrier spacing-based offset information includes 4 bits of ssb-SubcarrierOffset as least significant bits (LSBs);

based on the 15 kHz-subcarrier spacing-based offset information, determining a value of a subcarrier offset used to identify a frequency location of a control resource set (CORESET) related to the SSB; and

based on the subcarrier offset, monitoring the CORESET related to the SSB,

wherein, based on the SSB being detected in a shared spectrum, (1) a difference between a synchronization raster in the shared spectrum and a center frequency of the SSB is limited to a multiple of 30 kHz, (2) the value of the subcarrier offset indicates only the multiple of 30 kHz based on the 15 kHz-subcarrier spacing-based offset information, and (3) one LSB of the value of the subcarrier offset is ‘0’.

4. The UE of claim 3 , wherein based on the SSB being detected in the shared spectrum, the one LSB of the 15 kHz-subcarrier spacing-based offset information is used to identify SSB candidates in a quasi-co-location (QCL) relationship.

5. An apparatus for a user equipment (UE), the apparatus comprising:

at least one processor; and

at least one computer memory operably connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:

detecting a synchronization signal block (SSB), wherein the SSB includes 15 kHz-subcarrier spacing-based offset information, wherein the 15 kHz-subcarrier spacing-based offset information includes 4 bits of ssb-SubcarrierOffset as least significant bits (LSBs);

based on the 15 kHz-subcarrier spacing-based offset information, determining a value of a subcarrier offset used to identify a frequency location of a control resource set (CORESET) related to the SSB; and

based on the subcarrier offset, monitoring the CORESET related to the SSB,

wherein, based on the SSB being detected in a shared spectrum, (1) a difference between a synchronization raster in the shared spectrum and a center frequency of the SSB is limited to a multiple of 30 kHz, (2) the value of the subcarrier offset indicates only a multiple of 30 kHz based on the 15 kHz-subcarrier spacing-based offset information, and (3) one LSB of the value of the subcarrier offset is ‘0’.

6. The apparatus of claim 5 , wherein based on the SSB being detected in the shared spectrum, the one LSB of the 15 kHz subcarrier spacing-based offset information is used to identify SSB candidates in a quasi-co-location (QCL) relationship.

7. At least one computer memory storing instructions that, based on being executed by at least one processor, perform operations comprising:

detecting a synchronization signal block (SSB), wherein the SSB includes 15 kHz-subcarrier spacing-based offset information, wherein the 15 kHz-subcarrier spacing-based offset information includes 4 bits of ssb-SubcarrierOffset as least significant bits (LSBs);

based on the 15 kHz-subcarrier spacing-based offset information, determining a value of a subcarrier offset used to identify a frequency location of a control resource set (CORESET) related to the SSB; and

based on the subcarrier offset, monitoring the CORESET related to the SSB,

wherein, based on the SSB being detected in a shared spectrum, (1) a difference between a synchronization raster in the shared spectrum and a center frequency of the SSB is limited to a multiple of 30 kHz, (2) the value of the subcarrier offset indicates only a multiple of 30 kHz based on the 15 kHz-subcarrier spacing-based offset information, and (3) one LSB of the value of the subcarrier offset is ‘0’.

8. The at least one computer memory of claim 7 , wherein based on the SSB being detected in the shared spectrum, the one LSB of the 15 kHz subcarrier spacing-based offset information is used to identify SSB candidates in a quasi-co-location (QCL) relationship.