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AGENDA 1. 5G 요구 환경 및 서비스 비전
2. 5G 연구기관 동향
3. 5G 구현 기술
4. Cisco 5G 비전
5. 요약
2
1. 5G 요구 환경 및 서비스 비전
4
5G 요구 환경
IoT(Internet of Things) MTC(Machine-Type-Communication)
Gigabit wireless connectivity More capacity
Better cost efficiency Long battery lifetime
Low latency
5
5G 서비스 비전
유비쿼터스 접속
만지는
몰입서비스
클라우드 기반
실시간서비스
사물통신
인터넷
2. 5G 연구기관 동향
7
5G 연구기관 동향
METIS
5G-‐PPP
3GPP
2013 2014 2015 2016 2017 2018 2019 2020 2021 2012
WRC: World RadiocommunicaSon Conference ITU-‐R: ITU-‐R: InternaSonal TelecommunicaSon Union RadiocommunicaSon Sector
Dev.: Development
Req: requirement 5G-‐PPP: 5G-‐Public Private Partnership
METIS: Mobile and wireless communicaSons Enablers for the Twenty-‐twenty InformaSon Society
Op+miza+on and Standardiza+on Implementa+on and trial Commercial
Req. submission Research and Dev. Standardiza+on Detail of STD Commercial
NSF Future Internet Architecture Next Phase
ITU-‐R IMT for 2020 and beyond
IMT vision Requirements Proposal Specifica+on
Rel 12 Rel 13 Rel 14 Rel 15 Rel 16 Rel 17
5G Standard Commercial
WRC-‐18/19 Spectrum AllocaSon
Market 동계 올림픽 하계 올림픽
System requirements
NSF: NaSonal Science FoundaSon
8
5G 품질 요구 사항
100
Source: METIS, Towards the METIS 5G Concepts
10
1
0.1 1000 100
10 1
10 1
0.1
1000
100
10
x1000
x100
x10
x1
1000 100
10 1
1
10 100
지연시간 [ms]
연결수 [104/km2]
비용 효율 [Bit/$]
이동속도 [Km/h]
주파수 효율성 [bps/Hz]
셀경계 속도
[Mbps] 5G
최대 속도 [Gbps]
트래픽 용량
사용자 데이터 속도
주파수 대역폭
지연 속도 [ms]
신뢰성
단말 연결수
이동속도
에너지 효율
1000
100
10
대용량
고속
광대역
1
10
고신뢰성
4G
3. 5G 구현 기술 요소
10
무선통신 세대별 진화
MulSple Access FDMA TDMA CDMA W-‐CDMA OFDMA
TDD NOMA FBMC GFDM
ModulaSon/Coding QPSK DS/FH ST coding MIMO QAM
MU-‐MIMO Massive MIMO
Network Topology Frequency Reuse Handover Pico
Relay
FFR CoMP F-‐eICIC
3D beamforming FQAM
FFR: FracSonal Frequency Reuse CoMP: Coordinated MulS-‐Point operaSon F-‐eICIC: Further enhanced Inter-‐Cell Interference CancellaSon NOMA: Non-‐Orthogonal OFDMA DS/FH: Direct Spreading/Frequency Hopping
1G 2G 3G 4G 5G
ST coding: Space Time coding FQAM: Frequency Quadrature Amplitude ModulaSon FBMC: Filter-‐bank Based MulS-‐Carrier GFDM: Generalized Frequency Division MulSplexing
11
5G 기술 요소
Network virtualization: core to radio
Control and user plane split
Decoupled downlink and uplink
Light MAC and optimized RRM Better cost efficiency
Massive MIMO/Beamforming, active antenna
Device-to-Device(D2D) communication
New Air Interfaces
mmWaves
12
NOMA: Non-Orthogonal OFDMA
주파수, 코드
전력
주파수
Orthogonal among users Non-‐Orthogonal among users
전력
CDMA, OFDMA NOMA
w/o SIC
w/ SIC Decoding UE1 Signal and CancellaSon
UE1
UE2
전력
주파수
UE1
UE2
SIC: Successive Interference CancellaSon
13
mmWave, Massive MIMO, 3D-Beamforming
mmWave & higher bandwidth 3D-‐beamforming
데이터 지연 속도 8ms
최대 데이터 속도 1Gbps > 50Gbps
1ms
주파수 대역폭 100MHz 1GHz
1GHz 2GHz 4GHz 5GHz 500MHz
2G ~ 4G Satellite Wi-Fi
3GHz
2G, 4G
Satellite
Broadcast TV
AM/FM Radio
GPS
Wi-Fi Weather
radar
S band L band
50GHz
mmWave above 6GHz 3D-channel model, full dimension MIMO
14
FQAM Inter-‐Cell Interference Design FQAM DistribuSon of ICI
+
+
+
Sn
Sm
S
Desired Signal
Inter-‐cell Interference Signal
Inter-‐cell Interference Signal
Interference
Interference
Interference
Interference
R = S + N
간섭 신호 변조를 이용한 셀간 간섭 특성을 변화
FSK QAM
셀간 간섭의 통계적 특성이 비가우시안(non-‐Gaussian)
QAM(Blue): Gaussian
FQAM(Red): Non-‐Gaussian
Moving Wireless Backhaul
mmWave backhaul link (Gbps) Inside hotspot
Sub 6GHz access link
Giga Wi-‐Fi/LTE-‐A Femto
MHN: Mobile Hotspot Network
15
16
In-band full duplexing
Half-‐duplex
Time#2 or Freq #2
Time#1 or Freq #1 Full-‐duplex
Same Time/Freq
D S U U D S U U U
UE1, UL heavy
D S D D D S D D D
UE2, DL heavy
U U U U U U U U U
D D D D D D D D D
Full-‐duplex TDD Carrier
17
Core Network Considerations
Wire-‐line and wireless Separated Control plane from data plane VirtualizaSon RAN/GW co-‐located content/service cache
GW-‐GW mobility MulSple RATs service Higher peak user throughput
Future Internet Architecture
18
Flat Core Architecture 분산형 클라우드
이동성 인증 과금
게이트웨이 기능
코어 제어부
분산형 클라우드
GW Data Plane
동기화
4G Hot Spot 5G Giga Wi-‐Fi IoT
Distributed virtualizaSon + separate control and user plane
이동성 인증 과금
게이트웨이 기능
코어 제어부
19
GW-GW mobility
IP1 IP1 + IP2 IP1 + IP2 + IP3
Seamless mulSple GW mobility + mulSple tunnel management for a UE
응용서비스 서버 응용서비스 서버
유휴 자원 해제
이동성 인증 과금
게이트웨이 기능
코어제어부
이동성 인증 과금
게이트웨이 기능
코어제어부
GW Data Plane
20
Multi-RAT & Multi-Path Service
UE
GW-‐level mulS-‐path management • Different control/user plane • Semi-‐staSc scheduling on radio condiSon • Hard handover on mulS-‐RAT • Same IP address
MulS-‐RAT carrier aggregaSon • Individual control/user plane on mulS-‐RAT • Real-‐Sme dynamic scheduling on mulS-‐radio condiSon • Lossless handover • Same IP address
Peer-‐level mulS-‐path management • Independent data path under mulS-‐APN • ApplicaSon-‐level packet scheduling • Different IP address
AP
eNB
GW
GW
Peer
AP
21
Future Internet
Content Provider
Client
RouSng Table
Dest IP
Interest Packet Content Name
Content Store
FIB
FIB
Data Packet Content Name
Content
PIT 채Content Store
Interest Packet Content Name
matching Data Packet Content Name
Content
• Content Centric Network • Named-‐Data Networking
Client
IP Datagram
Dest IP
Src IP
4. Cisco 5G 비전
23
네트워크 연결
1
5
2
3
4
Knowledge & Learning Network
Dynamic Network
Virtualized & Orchestrated
Intelligence & Optimization
Connectivity
Start with a robust Telco architecture
Mobile Backhaul,
Packet Core, Gi-LAN Small Cell
(SP Wi-Fi & Licensed) Increasing Sophistication
Expanding Capabilities & Capacity
24
네트워크 최적화
Enable Intelligence to Optimize the Network
Portfolio:
SON, WAN Orchestration, Policy (PCRF) Suite
1
5
2
3
4
Knowledge & Learning Network
Dynamic Network
Virtualized & Orchestrated
Intelligence & Optimization
Connectivity
Increasing Sophistication
Expanding Capabilities & Capacity
25
가상화
Increase Elasticity & Agility at Lower Cost Points
Virtualized Platforms
1
5
2
3
4
Knowledge & Learning Network
Dynamic Network
Virtualized & Orchestrated
Intelligence & Optimization
Connectivity
Increasing Sophistication
Expanding Capabilities & Capacity
26
다이나믹 네트워크
Realizing Dynamic Network Service Delivery through Service Orchestration, Dynamic, Self Service, Service C
hains & 3rd party Hosting
1
5
2
3
4
Knowledge & Learning Network
Dynamic Network
Virtualized & Orchestrated
Intelligence & Optimization
Connectivity
Increasing Sophistication
Expanding Capabilities & Capacity
27
지능형 네트워크
Knowledge & Learning Network
Learns, Understands and Anticipates
1
5
2
3
4
Knowledge & Learning Network
Dynamic Network
Virtualized & Orchestrated
Intelligence & Optimization
Connectivity
Increasing Sophistication
Expanding Capabilities & Capacity
28
▶ 고성능 데이터 서비스: 무선/유선 ▶ 데이터 전송 지연 최소화 ▶ MulS-‐RAT and vHetNet ▶ 제어부와 사용자 평면 분리 ▶ VirtualizaSon and SDN ▶ Future Internet: 주소 컨텐츠
요약
Thank You
