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1. (WO2015119428) METHOD AND APPARATUS FOR DELAYING AUTONOMOUS RESOURCE FALLBACK FOR D2D OPERATION IN WIRELESS COMMUNICATION SYSTEM

Pub. No.:    WO/2015/119428    International Application No.:    PCT/KR2015/001157
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Thu Feb 05 00:59:59 CET 2015
IPC: H04W 72/04
H04W 8/00
Applicants: LG ELECTRONICS INC.
Inventors: JUNG, Sunghoon
SEO, Hanbyul
Title: METHOD AND APPARATUS FOR DELAYING AUTONOMOUS RESOURCE FALLBACK FOR D2D OPERATION IN WIRELESS COMMUNICATION SYSTEM
Abstract:
A method and apparatus for performing device-to-device (D2D) transmission in a wireless communication system is provided. A user equipment (UE) determines that it is out of coverage (OOC). Even though the UE is OOC, the UE continues to perform D2D transmission by using D2D resources for in-coverage under a specific condition. Based on a specific condition, if the UE determines that is in coverage before the specific condition is met, the UE performs D2D transmission by using the D2D resources for in-coverage. If the specific condition is met while the UE is OOC, the UE performs D2D transmission by using the D2D resources for OOC.