Network Energy Performance of 5G Systems. Dr. Ylva Jading Senior Specialist Ericsson Research

Transcription

1 Network Energy Performance of 5G Systems Dr. Ylva Jading Senior Specialist Ericsson Research

2 Network Energy Performance Targeting reduced energy consumption Economy Ecology Engineering

3 The big picture network Energy consumption 4G 3G 1G 2G

4 Current and future Traffic the challenge for mobile communication 0 Sorted tx power utilization Traffic [%] 1 Low average traffic Large variations Peak dimensioning Time sorted in increasing throughput [%] Cells sorted in increasing average throughput [%] Some two weeks of metropolitan traffic

5 Current and future Traffic 0 10 Sorted tx power utilization Traffic [%] Most parking spaces are unused most of the time Time sorted in increasing throughput [%] Cells sorted in increasing average throughput [%] Large variations and Low average traffic

6 Current and future Traffic 0 10 Sorted tx power utilization Traffic [%] Time sorted in increasing throughput [%] Cells sorted in increasing average throughput [%] But not the one I want to use when I want to use it

7 Evaluation model EARTH e 3 F Energy-efficiency evaluation Framework Framework contains: Deployment scenarios Traffic scenarios Power models 24h traffic profile Increased focus on low load

8 EARTH MACRO BS Power model maps RF output power to BS power usage Breakdown per component : Power amplifier (PA) Radio Frequency (RF) Base band processing (BB) DC-DC conversion (DC) Cooling (CO) Main power supply (PS) BS Power Consumption [W] Macro-cell * Baseline System (EARTH OFF) PA 400 RF BB 200 DC CO PS Relative RF Output Power [%] Macro BS Comparably load dependent

9 Traffic vs Energy consumption the challenge for mobile communication Low average traffic and large variations Networks dimensioned for peak demand Considerable static energy consumption 50% 40% 30% 20% 10% 0% Network Traffic Load Network Energy Consumption Improve load dependence Normal traffic Very high traffic Extreme traffic

10 5G Energy Performance Load adaptive energy consumption Only active when and where needed One network many use cases

11 5G Wireless Access High data rates everywhere Very high traffic capacity Massive number of devices Very low device cost Very low device energy consumption A wide range of requirements and capabilities Very low latency Ultra-high reliability and availability Very high network energy performance...

12 v Data rates 3G HSPA LTE IMT/LTE- Advanced 2 Mbps 14 Mbps 100 Mbps 1 Gbps More than 10 Gbps in specific scenarios Several 100 Mbps generally available in urban/suburban scenarios Tens of Mbps essentially everywhere 5G? High data rates everywhere

13 5G Radio Access Evolution of existing technology + new radio-access technology Evolution of LTE Tight interworking New radio-access technology NX No compatibility constraints Existing spectrum New spectrum 1 GHz 3 GHz 10 GHz 30 GHz 100 GHz 1 GHz 3 GHz 10 GHz 30 GHz 100 GHz Below 6 GHz Above 6 GHz New spectrum below 6 Ericsson AB 2015 September 2015

14 Only transmit when needed 5G Radio Access Data/control separation Control Data Zzzz... Ultra-lean transmission

15 Only transmit where needed 5G Radio Access Multi-site transmission Massive beam-forming Small nodes

16 One network multiple A common network platform with dynamic and secure Network Slices

17 Network Architecture Core/IP Network Slicing Distributed Cloud Virtualization VNF VNF Software Defined Networking (SDN) VNF VNF VNF VNF Distributed Data Center Central Data Center

18 Summary Energy Performance Typically low load dependence of network-energy consumption today Evaluation methodology available for energy performance EARTH Energy-Efficiency Evaluation Framework (E 3 F) 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

19 Thank you! Any questions?

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