network energy performance of 5g systems
TRANSCRIPT
Network Energy Performance of 5G Systems
Dr. Ylva Jading Senior Specialist Ericsson Research
Network Energy Performance Targeting reduced energy consumption
Economy Ecology Engineering
Ericsson AB 2015 | September 2015
The big picture network Energy consumption
4G
3G
2G 1G
Ericsson AB 2015 | September 2015
Current and future Traffic the challenge for mobile communication
Cells sorted in increasing average throughput [%]Tim
e sort
ed in
incre
asing
throu
ghpu
t [%
]
Sorted tx power utilization Traffic [%]
0 10 20 30 40 50 60 70 80 90 100
0
10
20
30
40
50
60
70
80
90
100 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Low average traffic
Large variations
Peak dimensioning
Some two weeks of metropolitan traffic Ericsson AB 2015 | September 2015
Large variations and Low average traffic
Current and future Traffic
Cells sorted in increasing average throughput [%]Tim
e sort
ed in
incre
asing
throu
ghpu
t [%
]
Sorted tx power utilization Traffic [%]
0 10 20 30 40 50 60 70 80 90 100
0
10
20
30
40
50
60
70
80
90
100 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
“Most parking spaces are unused most of the time”
Ericsson AB 2015 | September 2015
Current and future Traffic
Cells sorted in increasing average throughput [%]Tim
e sort
ed in
incre
asing
throu
ghpu
t [%
]
Sorted tx power utilization Traffic [%]
0 10 20 30 40 50 60 70 80 90 100
0
10
20
30
40
50
60
70
80
90
100 0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
“But not the one I want to use when I want to use it” Ericsson AB 2015 | September 2015
Framework contains: Deployment scenarios Traffic scenarios Power models 24h traffic profile
Evaluation model – EARTH e3F Energy-efficiency evaluation Framework
Increased focus on low load
Ericsson AB 2015 | September 2015
0.2 0.4 0.6 0.8 10
200
400
600
800
1000
Relative RF Output Power [%]
BS
Pow
er C
onsu
mpt
ion
[W]
Macro-cell * Baseline System (EARTH OFF)
PARFBBDCCOPS
Breakdown per component : Power amplifier (PA) Radio Frequency (RF) Base band processing (BB) DC-DC conversion (DC) Cooling (CO) Main power supply (PS)
EARTH MACRO BS Power model maps RF output power to BS power usage
Macro BS Comparably load dependent Ericsson AB 2015 | September 2015
Low average traffic and large variations
Networks dimensioned for peak demand
Considerable static energy consumption
Traffic vs Energy consumption the challenge for mobile communication
Improve load dependence
Network Traffic Load 50%
40%
30%
20%
10%
0%
Network Energy Consumption
Normal traffic Very high traffic Extreme traffic
Ericsson AB 2015 | September 2015
5G Energy Performance
Load adaptive energy consumption
Only active when and where needed
One network many use cases
Ericsson AB 2015 | September 2015
5G Wireless Access
• High data rates everywhere
• Very high traffic capacity
• Massive number of devices
• Very low device cost
• Very low device energy consumption
• Very low latency
• Ultra-high reliability and availability
• Very high network energy performance
• ...
A wide range of requirements and capabilities
Ericsson AB 2015 | September 2015
v
Data rates
• More than 10 Gbps in specific scenarios
• Several 100 Mbps generally available in urban/suburban scenarios
• Tens of Mbps essentially everywhere IMT/LTE- Advanced
3G
HSPA
LTE
5G
2 Mbps
14 Mbps
100 Mbps
1 Gbps
? High data rates everywhere Ericsson AB 2015 | September 2015
5G Radio Access
NX
“Existing” spectrum
Below 6 GHz
Tight interworking
“New” spectrum
Above 6 GHz New spectrum below 6 GHz
Evolution of LTE
1 GHz 3 GHz 10 GHz 30 GHz 100 GHz 1 GHz 3 GHz 10 GHz 30 GHz 100 GHz
No compatibility constraints
Evolution of existing technology + new radio-access technology
@ Ericsson AB 2015 | September 2015
New radio-access technology
Only transmit when needed 5G Radio Access
Control Data/control separation
Ultra-lean transmission
Data
Zzzz...
Ericsson AB 2015 | September 2015
Only transmit where needed 5G Radio Access
Massive beam-forming
Multi-site transmission
Small nodes
Ericsson AB 2015 | September 2015
One network – multiple industries
@
A common network platform with dynamic and secure Network Slices
Ericsson AB 2015 | September 2015
Network Architecture – Core/IP Software Defined Networking (SDN)
Virtualization
VNF VNF
VNF VNF
Central Data Center
VNF VNF
Distributed Data Center
Network Slicing Distributed Cloud
Ericsson AB 2015 | September 2015
Typically low load dependence of network-energy consumption today
Evaluation methodology available for energy performance EARTH Energy-Efficiency Evaluation Framework (E3F)
Design principles for high network-energy performance Only be active and transmit when needed Only be active and transmit where needed
Ericsson white paper available: 5G Energy Performance – Key Technologies and Design Principles
Summary Energy Performance
Ericsson AB 2015 | September 2015
Thank you! Any questions?
Ericsson AB 2015 | September 2015
