Method and apparatus for measuring synchronization signal block

A User Equipment (UE) configured to measure a Synchronization Signal Block (SSB) in a wireless communication system, the UE comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• receiving, through the transceiver, (i) first SSB transmission periodicity information regarding a first periodicity of SSB transmissions for a carrier, and (ii) information regarding a cell list comprising at least one cell that is configured with the first periodicity of SSB transmissions;
• receiving, through the transceiver, second SSB transmission periodicity information regarding a second periodicity of SSB transmissions for the carrier;
• measuring Reference Signal Received Power (RSRP) for an SSB of a first cell that is among the at least one cell in the cell list, based on the first periodicity of SSB transmissions;
• and
• measuring RSRP for an SSB transmitted of a second cell that is not among the at least one cell in the cell list, based on the second periodicity of SSB transmissions,
• wherein the first periodicity, based on which the RSRP for the SSB of the first cell included in the cell list is measured, and the second periodicity, based on which the RSRP for the SSB of the second cell not included in the cell list is measured, are configured such that the first periodicity cannot be longer than the second periodicity,
• wherein measuring the RSRP for the SSB of the first cell is based on a first SSB measurement window that is configured based on the first SSB transmission periodicity information, and
• wherein measuring the RSRP for the SSB of the second cell is based on a second SSB measurement window that is configured based on the second SSB transmission periodicity information.

A processing apparatus configured to control a User Equipment (UE) to measure a Synchronization Signal Block (SSB) in a wireless communication system, the processing apparatus comprising:

• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• receiving (i) first SSB transmission periodicity information regarding a first periodicity of SSB transmissions for a carrier, and (ii) information regarding a cell list comprising at least one cell that is configured with the first periodicity of SSB transmissions;
• receiving second SSB transmission periodicity information regarding a second periodicity of SSB transmissions for the carrier;
• measuring Reference Signal Received Power (RSRP) for an SSB of a first cell that is among the at least one cell in the cell list, based on the first periodicity of SSB transmissions;
• and
• measuring RSRP for an SSB transmitted of a second cell that is not among the at least one cell in the cell list, based on the second periodicity of SSB transmissions,
• wherein the first periodicity, based on which the RSRP for the SSB of the first cell included in the cell list is measured, and the second periodicity, based on which the RSRP for the SSB of the second cell not included in the cell list is measured, are configured such that the first periodicity cannot be longer than the second periodicity,
• wherein measuring the RSRP for the SSB of the first cell is based on a first SSB measurement window that is configured based on the first SSB transmission periodicity information, and
• wherein measuring the RSRP for the SSB of the second cell is based on a second SSB measurement window that is configured based on the second SSB transmission periodicity information.