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Small Cell
for 5G mobile communication
김영환
메가트렌드 (사용자 요구 사항)
• M1: 트래픽 양 증가
• M2: 디바이스 수 증가
• M3: 클라우드 의존성 증가
• M4: 다양한 모바일 융합 서비스
성능 지표 (시스템 요구 사항)
핵심 성능지표
(시스템 요구사항)
내용 메가트렌드 관련 기능
User Experienced Data Rate
(체감 전송률)
100Mbps – 1Gbps M1. 트래픽 증가 단말, 기지국
Peak Data Rate
(최대 전송률)
10Gbps – 50Gbps M1. 트래픽 증가 단말, 기지국
Mobility
(이동 속도)
Up to 500Km/h M1. 다양한 모바일 융합 서비스 단말, 기지국
Latency
(전송 지연)
~ 1ms
(radio interface)
M3. 클라우드 의존성 증가 단말, 기지국, 코어망
Connection Density
(연결기기 밀도)
106 – 107 per Km2 M2. 디바이스 수 증가 기지국, 코어망
Energy Efficiency
(에너지 효율)
IMT-A 대비
50 – 100배 효율화
M4. 다양한 모바일 융합 서비스 단말
Spectrum Efficiency
(주파수 효율)
IMT-A 대비
5 – 15배 효율화
M1. 트래픽 증가 단말, 기지국
Traffic Volume Density*
(면적당 용량)
1TB - 10TB/s/Km2 * M1. 트래픽 증가 기지국
R1. End-to-End Latency에 대한 고려
• Requirement on latency
– 청각 (Audio data): < 100 ms
– 시각 (Video data for vehicle): < 10 ms
– 촉각 (Tactile data for emergency): < 1 ms
• 필요한 기술: move Cloud to user location, eNodeB
R2. User Experienced Data Rate에 대한 고려
• 사용자의 위치 (inner/outer/edge)에 상관없이 어디에서든지 1 Gbps를 사용
• 필요한 기술:
- Interference Management
- HetNet using small cell
- Distributed Antenna System (DAS)
- Beam forming using advanced MIMO
• In-Building System 을 구성하는 방법에는 Small Cell 및 DAS 가 있음.
Small Cell for 5G mobile communication
기능 요구 사항 실현 방안 세부 기술
Reduce
latency
Move cloud to
user location
- eNodeB with cache
- use private cloud
Uniform
experience
Install small cell
or DAS
- enhanced ICIC
- Carrier Aggregation
- Multiple session for data transfer with
integrated Wi-Fi or LTE-U
- Various backhaul interface such wireless
mmWave, G-PON, Ethernet, and xDSL

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Small cell for 5 g

  • 1. Small Cell for 5G mobile communication 김영환
  • 2. 메가트렌드 (사용자 요구 사항) • M1: 트래픽 양 증가 • M2: 디바이스 수 증가 • M3: 클라우드 의존성 증가 • M4: 다양한 모바일 융합 서비스
  • 3. 성능 지표 (시스템 요구 사항) 핵심 성능지표 (시스템 요구사항) 내용 메가트렌드 관련 기능 User Experienced Data Rate (체감 전송률) 100Mbps – 1Gbps M1. 트래픽 증가 단말, 기지국 Peak Data Rate (최대 전송률) 10Gbps – 50Gbps M1. 트래픽 증가 단말, 기지국 Mobility (이동 속도) Up to 500Km/h M1. 다양한 모바일 융합 서비스 단말, 기지국 Latency (전송 지연) ~ 1ms (radio interface) M3. 클라우드 의존성 증가 단말, 기지국, 코어망 Connection Density (연결기기 밀도) 106 – 107 per Km2 M2. 디바이스 수 증가 기지국, 코어망 Energy Efficiency (에너지 효율) IMT-A 대비 50 – 100배 효율화 M4. 다양한 모바일 융합 서비스 단말 Spectrum Efficiency (주파수 효율) IMT-A 대비 5 – 15배 효율화 M1. 트래픽 증가 단말, 기지국 Traffic Volume Density* (면적당 용량) 1TB - 10TB/s/Km2 * M1. 트래픽 증가 기지국
  • 4. R1. End-to-End Latency에 대한 고려 • Requirement on latency – 청각 (Audio data): < 100 ms – 시각 (Video data for vehicle): < 10 ms – 촉각 (Tactile data for emergency): < 1 ms • 필요한 기술: move Cloud to user location, eNodeB
  • 5. R2. User Experienced Data Rate에 대한 고려 • 사용자의 위치 (inner/outer/edge)에 상관없이 어디에서든지 1 Gbps를 사용 • 필요한 기술: - Interference Management - HetNet using small cell - Distributed Antenna System (DAS) - Beam forming using advanced MIMO • In-Building System 을 구성하는 방법에는 Small Cell 및 DAS 가 있음.
  • 6. Small Cell for 5G mobile communication 기능 요구 사항 실현 방안 세부 기술 Reduce latency Move cloud to user location - eNodeB with cache - use private cloud Uniform experience Install small cell or DAS - enhanced ICIC - Carrier Aggregation - Multiple session for data transfer with integrated Wi-Fi or LTE-U - Various backhaul interface such wireless mmWave, G-PON, Ethernet, and xDSL