Patent ID: 11910232
Assignee: NEC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. User Equipment (UE), comprising:
one or more memories configured to store instructions; and
one or more processors configured to execute the instructions to:
send, to a Radio Access Network (RAN) node, first security information for User Plane (UP) integrity protection,
receive, from the RAN node, second security information for the UP integrity protection, wherein the second security information is decided by the RAN node for security information negotiation, and
generate a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) including a PDCP header, data, and a Message Authentication Code-Integrity (MAC-I) using the second security information, wherein the PDCP header comprises at least one bit that indicates whether the integrity protection is used in the PDU or not.