Method and apparatus for transmitting and receiving system information

A user equipment (UE) configured to receive remaining minimum system information (RMSI) in a wireless communication system, the UE comprising:

• at least one 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 at least one transceiver, a synchronization signal (SS)/physical broadcast channel (PBCH) block (SS/PBCH block) comprising an SS and a PBCH in a half-frame;
• obtaining, via the PBCH, information related to a monitoring window for receiving a physical downlink control channel (PDCCH);
• determining a starting slot for the monitoring window, wherein the monitoring window has a duration of 2 slots;
• receiving, through the at least one transceiver, the PDCCH within the monitoring window;
• and
• receiving the RMSI based on the PDCCH,
• wherein based on at most 1 control resource set (CORESET) for the RMSI being included per slot among the 2 slots of the monitoring window, and based on the SS/PBCH block having an SS/PBCH block index n which is a non-negative integer:
• the starting slot of the monitoring window is different for each value of the SS/PBCH block index n, and
• wherein based on at most 2 CORESETs for the RMSI being included per slot among the 2 slots of the monitoring window:
• based on the SS/PBCH block having an SS/PBCH block index 2n, the starting slot of the monitoring window is a first starting slot,
• based on the SS/PBCH block having an SS/PBCH block index 2n+1, the starting slot of the monitoring window is the first starting slot,
• based on the SS/PBCH block having an SS/PBCH block index 2n+2, the starting slot of the monitoring window is a second starting slot that is 1 slot after the first starting slot, and
• based on the SS/PBCH block having an SS/PBCH block index 2n+3, the starting slot of the monitoring window is the second starting slot.

At least one computer-readable storage medium encoded with at least one computer program comprising instructions that, when executed, operate to cause at least one processor to perform operations comprising:

• receiving a synchronization signal (SS)/physical broadcast channel (PBCH) block (SS/PBCH block) comprising an SS and a PBCH in a half-frame;
• obtaining, via the PBCH, information related to a monitoring window for receiving a physical downlink control channel (PDCCH);
• determining a starting slot for the monitoring window, wherein the monitoring window has a duration of 2 slots;
• receiving the PDCCH within the monitoring window;
• and
• receiving remaining minimum system information (RMSI) based on the PDCCH,
• wherein based on at most 1 control resource set (CORESET) for the RMSI being included per slot among the 2 slots of the monitoring window, and based on the SS/PBCH block having an SS/PBCH block index n which is a non-negative integer:
• the starting slot of the monitoring window is different for each value of the SS/PBCH block index n, and
• wherein based on at most 2 CORESETs for the RMSI being included per slot among the 2 slots of the monitoring window:
• based on the SS/PBCH block having an SS/PBCH block index 2n, the starting slot of the monitoring window is a first starting slot,
• based on the SS/PBCH block having an SS/PBCH block index 2n+1, the starting slot of the monitoring window is the first starting slot,
• based on the SS/PBCH block having an SS/PBCH block index 2n+2, the starting slot of the monitoring window is a second starting slot that is 1 slot after the first starting slot, and
• based on the SS/PBCH block having an SS/PBCH block index 2n+3, the starting slot of the monitoring window is the second starting slot.