Patent ID: 11950296
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A base station (BS) used in a wireless communication system, the BS comprising:
at least one processor, and
at least one computer memory storing instructions which, when executed, cause the at least one processor to perform operations comprising:
receiving a random access preamble (RAP) on a physical random access channel (PRACH) and a control channel (CCCH) service data unit (SDU) on a physical uplink shared channel (PUSCH); and
transmitting a medium access control (MAC) protocol data unit (PDU) based on receiving the RAP and the CCCH SDU,
wherein the MAC PDU includes a first part that includes a long UE contention resolution identity (CRID) MAC control element (CE), a second part after the first part, and a MAC subheader for the long UE CRID MAC CE,
wherein the long UE CRID MAC CE includes multiple UE CRIDs for multiple UEs,
wherein the second part includes respective timing advance commands for the multiple UE CRIDs, and
wherein the MAC subheader includes a logical channel identity (LCID) field set to a value representing the long UE CRID MAC CE and a length field set to a value indicating the size of the long UE CRID MAC CE.