next-generation mobile communications system: 5g · evolution of mobile technology 1980s 1990s...
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Next-generation Mobile Communications System: 5G
Evolution of Mobile Technology
1980s 1990s 2000s 2010s 2020s
1G Analog
3G IMT-2000
4G IMT-Advanced LTE-Advanced
5G
2G Digital
LTE
IMT-Advanced LTE-Advanced
IMT-2000
Steady evolution toward higher capacity
and data rates
Communications in 2020 and Beyond
Multiple personal devices
Transportation (Car/Bus/Train)
Consumer electronics
Watches/ jewelry/clothes
Houses Sensors Cloud computing
Video streaming
New types of terminals/HI
Healthcare Education
Safety and lifeline systems
4K
Everything connected by wireless
Extended and enriched wireless services
5G Target Performance 5G radio access will provide a total solution for a wider range of requirements in 2020 and beyond
Higher data rate Reduced latency
Massive device connectivity
Energy savings & cost reductions
• 100x more connected devices (e.g., crowded areas, M2M services)
• Energy savings for networks & terminals • Reduced network costs, incl. backhaul
Higher system capacity
• RAN latency: < 1ms
• 1000x capacity/km2
5G • Typical data rate: 100x faster (Peak data rate: > 10Gbps)
2014 2015 2016 2017 2018 2019 2020 202x
Schedule for 5G and 5G+
WRC15 WRC19
Rel. 13 Rel. 14 Rel. 15
5G launch
Requirements
Workshop Proposals Specifications
5G+ launch
Channel Model SI
Commercial system development for 5G by 2020
Rel. 16
Technology SI Requirement SI
WIs WIs
WIs
eLTE+5G New RAT
5G Evolution for 2020 and Beyond
2020 2025 2030
5G+ 5G
5G will evolve by incorporating new frequency bands and technologies in 2020 and beyond Future compatibility is key for system design to continue evolutions
Frequency
More higher & wider freq. bands
More advanced technologies (e.g., Massive MIMO with higher
number of antenna elements)
Peak: Several Gbps Peak: Above 10Gbps
・ Existing frequency bands ・ New bands licensed by 2019 ・ Unlicensed bands
Introduction of 5G New RAT
+New bands licensed after 2020 (Tight interworking with LTE)
eMBB and New Uses 5G will support both eMBB and MTC uses
together with LTE evolution
5G in 2020 5G+ in 202X
eMBB
Massive MTC
Critical MTC
eLTE New RAT
eMBB
Massive MTC
Critical MTC
eLTE New RAT
Low latency
New RAT will mainly focus on eMBB
New RAT will be enhanced for all uses
5G Key Technologies for 2020 Deployment New RAT
Massive MIMO/ beamforming
Cell range extension
Improved spectral efficiency
Well localized waveform
Frequency
Time
New numerology with shorter TTI Wider bandwidth and
low latency
LTE
New RAT
f
t
Lean radio frame Less inter-cell interference,
energy saving, good forward compatibility
5G 5G 5G 5G 5G
5G 5G + 5G 5G
++ 5G +
5G (2020)
5G (202X)
Tight LTE integration
Flexible duplex with unlicensed spectrum
Licensed Band (LTE)
Unlicensed Band
(New RAT)
f
C/U-plane split (dual connectivity, CA)
eLTE/new RAT (C/U-plane)
New RAT (U-plane)
NOMA on LTE Further cellular
enhancement with massive connectivity
Intentional non-orthogonality
f NOMA
f OMA
IoT-related LTE enhancements
Low-cost & long-battery-life devices
(e.g. LTE-assisted access)
shared resources
Virtualization layer
・・・
Slices configured dynamically according to services
Future Core Network Network Slices accommodate versatile services,
enabling a single network to fulfill diverse requirements.
Smart meters Smart agriculture
Slice
Manager
LTE/LTE-A
5G
Non-cellular (Wi-Fi, LoRa, etc.)
Slice 1 (M2M)
Factory automation
ITS
Slice 2 (Low latency)
Results of 5G Trials
5G Experimental Trials (with 13 vendors) 5G experimental trials under way since Q4 of 2014
UHF bands Ex. 800MHz, 2GHz
Frequency
Low SHF bands 3-6GHz
High SHF bands 6-30GHz
EHF bands > 30GHz
Existing bands Exploitation of higher frequency bands
Key devices & chipset vendors
Measuring instrument vendors
System solution vendors
Massive-MIMO antenna
BS Antenna Unit
UE #1
UE #2
Ericsson’s 15GHz MU-MIMO Experiment
100m
120m
BS Antenna Unit
UE #1
UE #2
Ericsson’s 15GHz Beamforming Experiment
100 m 300 m 500 m
Base Station (BS)
antenna units
Mobile station
(MS)
BS MS
(40 km/h)
Ericsson’s 15GHz Beamforming Experiment
◎ Mobile station with 8 antenna elements mounted inside a 120mm x 60mm (smartphone-size) box
◎ MIMO multiplexing of 2 streams with 64QAM achieved 3.77Gbps by employing beamforming at both the base and mobile stations
ビーム追従 Beam tracking control
Moving at nearly 150km/h
Supported by: NTT Access Network Service Systems Laboratories
and DOCOMO Team Dandelion Racing
8 antenna elements
120mm
42 mm
56 m
m
Samsung’s 28GHz Beam Tracking Experiment
Mobile station
Base station
48 (8x6) elements
Beam tracking achieved max. 2.59Gbps at speeds of nearly 150km/h
Samsung’s 28GHz Beam Tracking Experiment
NEC’s 5.2GHz Experiments Indoor experiment
0
1
2
3
4
5
6
7
8
0 5 10 15 20 25 30Average SNR (dB)
Tota
l th
roughput
(Gbps)
No. of beams: 48
No. of beams: 32
BS antenna: 64 UE antenna: 2 No. of UEs: 8
MS Pole BS (AAS)
Measurement example
Outdoor experiment
AASx1
MS
Radio propagation experiments have been performed in indoor and outdoor environments to analyze channel response and angle of arrival/departure By using measured propagation
channel data, simulations showed that proposed digital beamforming algorithms can achieve over 5 Gbps throughput for a total of 8 users
Fujitsu’s 4.6GHz YRP Outdoor Experiment Thanks to flexible small-size antenna units, distributed deployments were compared with localized deployments in real-life experiments
Localizeddeployment
8 UEs, 1antenna/UE
Distributeddeployment
Distributeddeployment
Experimental results show that distributed deployment (4 antennas/TP x 4TPs) can achieve higher channel capacity with stability compared to localized deployment (16 antennas/TP x 1TP)
Huawei’s 4.6GHz System Trial in Yokohama
Yokohama Media Tower (base station)
Yokohama Media Tower
Yokohama Media Tower NLOS
Huawei‘s 4.6GHz Experiment in 5G Testbed
Indoor facility
Optical fiber
Base band unit
Base Station (BS) User Equipment (UE)
Test vehicle
RF/BBU
8 TRx
E-cart (including 2 UEs)
Number of antennas
BS: 64 TRX UE: 8 TRX 2 TRX
Antenna spacing
BS: 3.72cm x 5.21cm UE: 11cm
Antenna tilting
16.4°
Antenna height
BS: 108m UE: 3.2m
Maximum transmit power
BS: 46dBm UE: 23dBm
DL SU-MIMO (1s average) = 1.5 Gbps (200MHz BW, 3 layers)
DL total user throughput (1s average) = 11.29 Gbps (200MHz BW and 23 UEs*)
DL peak spectral efficiency (1s average) = 79.82 bps/Hz/cell
* Number of connected UEs: 23 UEs / 200MHz (11 UEs using lower 100MHz, 11 UEs using upper 100MHz, & 1 UE using 200MHz) * Number of spatial layers: 24 layers / 100MHz (12 user & 2 layers/user)
Huawei‘s 4.6GHz Large-scale MU-MIMO
NOKIA‘s 4.5GHz MU-MIMO experiment
2
0 1
3
4
Open House
(85.4m)
• Outdoor environment
– Outdoor to Indoor more than 1.2 Gbps
(BS: 6th Floor of YRP 2nd building; UE:Annnex-R)
– Outdoor LOS environment more than 500Mbps
(BS: YRP parking, UE: Up to 160m from YRP parking lot)
The transmission of ultra-high-resolution 8K video was achieved by combining an experimental system developed by DOCOMO and Nokia with H.265/HEVC encoding techniques developed by NTT Media Intelligence Laboratories. In the trial, 8K video (145Mbps) was successfully transmitted.
Base station
8K encoder
8K server
8K Display
Mobile station #1
8K decoder
Base station Mobile station
NOKIA's 70GHz 8K Transmission experiment
5G Beam Visualizer for Multi-vendors Real-time beam information from 5G multi-vender trial system added to HMD camera images
5G Beam Visualizer for Multi-vendors (video)
5G Beam Visualizer: Multi-vendor, Multi-frequency Version
5G Trial Sites
Schedule for 5G Deployment in 2020 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
Standardization
Research
NTT DOCOMO Trials
NTT DOCOMO Commercial
System Development 5G commercial
launch Upgrade to 5G+
5G commercial system development
Rel. 13 Rel. 14 Rel. 15 Rel. 16
Requirements Proposals Specifications
WRC15 WRC19
5G National Project in Japan
5GMF PoC Trials
Technical SI WIs WIs
Trials for 5G key technologies
EU Projects
System Trials in Tokyo 5G Trial Sites
NTT DOCOMO 5G Trial Sites Mainly Odaiba waterfront and Tokyo SKYTREE TOWN districts of Tokyo from May 2017
Tokyo SKYTREE TOWN
Odaiba waterfront DOCOMO cloud services are available via LTE network even outside of 5G area
Users can experience 5G’s higher performance, higher data rate and lower latency
LTE cell
5G cell
DOCOMO cloud services
Connect to LTE cells outside 5G area
Connect to 5G cells in 5G area
Support mobility between 5G cells
Support mobility between LTE and 5G
• Support mobility between 5G and commercial LTE networks • Utilize 28 GHz and 4.5 GHz frequency bands
Tokyo SKYTREE TOWN Area Trial will be conducted in/around commercial facilities of Tokyo SKYTREE TOWN and nearby Asakusa, and in trains/buses in the area.
Asakusa
Tokyo SKYTREE TOWN
DOCOMO will collaborate
with partner companies to
demonstrate the following:
VR applications
High-definition services
And more …
Odaiba Waterfront Utilizing wide area, PoC on coverage, high mobility and connected car aspects will be addressed in this area
Remote control for emergencies during autonomous driving
Connected car control
Support for autonomous driving
High presence public viewing