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1. (WO2018128452) METHOD FOR TRANSMITTING LOSSLESS DATA PACKET BASED ON QUALITY OF SERVICE (QOS) FRAMEWORK IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

Pub. No.:    WO/2018/128452    International Application No.:    PCT/KR2018/000237
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Sat Jan 06 00:59:59 CET 2018
IPC: H04W 28/02
H04W 28/06
H04W 28/04
Applicants: LG ELECTRONICS INC.
Inventors: CHO, Heejeong
LEE, Sunyoung
YI, Seungjune
LEE, Youngdae
Title: METHOD FOR TRANSMITTING LOSSLESS DATA PACKET BASED ON QUALITY OF SERVICE (QOS) FRAMEWORK IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR
Abstract:
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting lossless data packet based on QoS framework in wireless communication system, the method comprising: transmitting one or more PDCP SDUs via a first DRB to a receiver; determining whether each of the one or more PDCP SDUs is successfully transmitted or not on the first DRB, when a DRB mapped to a QoS flow is changed from the first DRB to a second DRB; re-transmitting one or more first PDCP SDUs via the first DRB to the receiver; and transmitting one or more second PDCP SDUs via the second DRB to the receiver.