US Patent No. 10,893,558

METHOD FOR PROCESSING RECEIVED RLC PDUS FOR D2D COMMUNICATION SYSTEM AND DEVICE THEREFOR


Patent No. 10,893,558
Issue Date January 12, 2021
Title Method For Processing Received Rlc Pdus For D2d Communication System And Device Therefor
Inventorship Seungjune Yi, Seoul (KR)
Sunyoung Lee, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 10,893,558

1. A method for a User Equipment (UE) operating in a wireless communication system, the method comprising:receiving a Radio Link Control (RLC) Protocol Data Unit (PDU) including a Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) from a peer UE;
establishing a RLC entity and a PDCP entity for a UE-to-UE direct communication;
initializing one or more state variables of the RLC entity to a sequence number (SN) of the RLC PDU when the RLC entity is established for the UE-to-UE direct communication;
processing the RLC PDU using the initialized state variables;
deciphering the PDCP SDU based on a PDCP SN of the PDCP SDU,
wherein deciphering the PDCP SDU does not requires a Hyper Frame Number (HFN) of the PDCP SDU to be incremented when the PDCP SN reaches to a maximum value.