5G 속도는 '세계 2위' 한국, 지연시간은 '최하위권'…체감품질 중심으로 전환 필요

South Korea's 5G network paradox—leading in speed but trailing in latency—exposes why raw throughput metrics fail to capture real user experience. Low latency is essential for smooth multimedia consumption and real-time services; when latency is high, users experience buffering and quality degradation regardless of available bandwidth. The government's shift toward Quality of Experience (QoE)-based evaluation frameworks, centered on 5G SA deployment, represents a critical industry realignment that will better drive network improvements aligned with actual user needs.