Patent ID: 11882515
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A User Equipment (UE) in RRC_IDLE and/or RRC_INACTIVE configured to operate in a wireless communication system,
wherein the wireless communication system includes an NG-RAN including a distributed unit (DU) and a central unit (CU), and
wherein the DU receives, from the CU, an F1 setup response message including multiple system information blocks (SIBs) provided by the CU,
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, based on being executed by the at least one processor, perform operations comprising:
transmitting, to the NG-RAN, a system information request for a specific system information block (SIB),
wherein a distributed unit (DU) transmits, to a central unit (CU), the system information request via a first message including a container which piggybacks the system information request,
wherein the DU receives, from the CU, a second message including an enumerated type of the specific SIB, wherein the enumerated type identifies the specific SIB among the multiple SIBs provided by the CU, and
wherein, upon receiving the second message from the CU, the DU broadcasts a system information (SI) message related to the specific SIB; and
receiving, from the DU, the SI message related to the specific SIB,
wherein the CU has a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, and a packet data convergence protocol (PDCP) layer, and
wherein the DU has a radio link control (RLC) layer, a media access control (MAC) layer, and a physical (PHY) layer.