Method for transmitting a paging message and device supporting the same

A wireless device in a wireless communication system, the wireless device comprising:

• at least one transceiver;
• at least processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
• receiving a paging from a distribution unit (DU) of a base station;
• and
• upon receiving the paging, initiating a service request procedure,
• wherein the paging is based on paging information transmitted from a central unit (CU) of the base station to the DU of the base station,
• wherein the paging information includes paging discontinuous reception (DRX) information and paging priority information,
• wherein the DU of the base station has a radio link control (RLC) layer, a media access control (MAC) layer and a physical layer of the base station, and
• wherein the CU of the base station has a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, and a packet data convergence protocol (PDCP) layer of the base station.

A wireless device in a wireless communication system, the wireless device comprising:

• a processor;
• and
• a memory coupled to the processor, wherein the processor is configured to:
• obtain a paging from a distribution unit (DU) of a base station;
• and
• upon obtaining the paging, initiate a service request procedure,
• wherein the paging is based on paging information transmitted from a central unit (CU) of the base station to the DU of the base station,
• wherein the paging information includes paging discontinuous reception (DRX) information and paging priority information,
• wherein the DU of the base station has a radio link control (RLC) layer, a media access control (MAC) layer and a physical layer of the base station, and
• wherein the CU of the base station has a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, and a packet data convergence protocol (PDCP) layer of the base station.