challenges and opportunities for implementing a new 5g network
TRANSCRIPT
© 2019 Arm Limited
Yan WangArm Tech Symposia China
Challenges and Opportunities for
Implementing a New 5G Network
2 © 2019 Arm Limited
Agenda5G Infrastructure Networks
• Overview main components of 5G
• Highlight some of the commercial and technological challenges facing stakeholders
• Focus on Arm’s approach in supporting a scalable platform and extending the portfolio of IP and software support for radio and network hierarchy technologies.
© 2019 Arm Limited
5G Market Perspective
4 © 2019 Arm Limited
5G and the Global Market• Commercial and roll out challenges – new use cases
• Multiple radio, base station and core network configurations to meet diverse use cases
• 5G performance requirements drive new architectures
• Radio Access Network dominated by purpose-built systems with virtualized/containerized technologies near the core
Global mobile traffic
2018: 28 EB/mth
2025: 130 EB/mth
Unique mobile broadband subscribers
2019: 8 bn
2025: 9 bn
Mobile data traffic
2025: 74% video
IoT connectivity
2019: 7.5 bn
2025: 25 bnSource: Ericsson Mobility Report and ReThink.
5 © 2019 Arm Limited
5G Broad Use Cases – Driving Promises and RequirementsUltra Reliable Low Latency Communications
(URLLC)
- Industrial automation
- Intelligent transportation
- Remote healthcare
Ultra-low latencyLess than 1ms
High availabilityEven in high mobility
Ultra-high reliabilityHigher than 99.999%
High accuracy positioningLess than 2m in 80% of situations
Ultra low interrupt time0ms
Enhanced Mobile Broadband
(eMBB)- Immersive AR and VR
- Advanced gaming/8K video streaming
- Enterprise broadband connectivity
- Connected transportation infotainment
Ultra-high Spectral EfficiencyDL peak: 30bps/Hz
Extreme data ratesDL peak: 20Gbps
Deep coverageEnhancements over 4G
Massive Machine Type Communications
(mMTC)
- Lighting & road sign control
- Smart waste management
- Asset tracking
- Structure & environmental monitoring
Ultra-low energy10 years + battery life
Low complexityLimited comms requirements
Ultra-high density1 million devices per Km2
URLLCmMTC
eMBB
5G
Broad level 5G use case criteria
Roll outs for 3GPP R’15 -> R’17
6 © 2019 Arm Limited
Providing the Building Blocks to Transform 5G
Radio Access Network
4G 5G
RAN
5G network access
Cloud data center
Hyper-scaler cloud
Storage of critical data
Use case processing
Core network
MNO
Core network
RAN Management
Edge
processing
Edge cloud
5G content cache
Round trip latency requirements for emerging applications
Robotics/Medical 2.2 ms
V2X augmented apps 10 ms
Smart City, IoT control15-20 ms
Analyze & Store Filter & React Local Decisions
© 2019 Arm Limited
5G RAN Challenges
8 © 2019 Arm Limited
RAN Challenges: Data Processing
Data Processing Challenges
• More complex algorithms will be used to achieve higher spectrum efficiency
• End to end latency becomes shorter
• Performance/Power/Costs are still important factors
1990 1995 2000 2005 2010 2015 2020
10K
1M
100M
10G
Bits/Sec
OPS
(Sig Proc)
Application & Air interface complexity
Per component
Per user
Round trip latency (ms) LTE 10ms, 5G 1ms
Increased integration
Key requirements for effective designs:• Offload some computation/processing to
SW• HW accelerators are still necessary for
certain functions
9 © 2019 Arm Limited
RAN Challenges: Deployment Scenarios
Different deployment scenarios to enable different use cases (eMBB, uRLLC, mMTC)
• Change in radio deployment. Many options.
1
2
3
Layer 3 Layer 2 Layer 1
L2
L1
RF
• Radio Cloud center (RCC)
• Packet data convergence protocol (PDCP)
• MAC
• Radio link control (RLC)
• Low-PHY
• High PHY
DIGITAL UNIT (DU) RU
L2
L3
split
split
CPRI, ECPRI
Split Option 8
Ethernet
Split Options 6, 7
Ethernet
Split Options 2, 3, 4, 5
4G CORE
5G NR Non stand alone.
C-RAN approach.
3GPP R16 through R18.
5G NR Stand alone.
CEN
TRA
LIZE
D U
NIT
(C
U)
EDG
E C
OM
PU
TE
5G
CO
RE
DAT
A C
ENTE
R
• Change in network hierarchy/architecture.• C-RAN, Macro-centric, Small cell, UCPS, Dual-connectivity, LAA, etc improve the capacity, throughput etc,
but also introduce more deployment scenarios
• Split C-Plane & U-Plane
One size cannot fit all. Need solutions to handle different scenarios efficiently
New network/function splitting may introduce diverse equipment and & SoC options
10 © 2019 Arm Limited
RAN Challenges: Open Initiatives & Commercial Challenges
Commercial Challenges
• New disruptive initiatives in supply chain
• MNO community pushing for greater autonomy
• 5G opportunity brings new commercial opportunity
Open Initiatives
Telecom Infrastructure Project (sponsored by Facebook to enable disruptive technology and a new approach to deploying network technology)
O-RAN (Open RAN Alliance)
11 © 2019 Arm Limited
Commercial/Engagement Dynamic more complex for 5G.
12 © 2019 Arm Limited
ML Challenges
RB carrier RAT slice
Orchestration and Automation
RU DU CU
RIC Near-RT
RIC Non-RT
UPF
5GC Ctrl.
DN
ms
minute
month
NWDAF
© 2019 Arm Limited
Arm’s Approach to 5G Enablement
14 © 2019 Arm Limited
Arm Neoverse: Enabling 5G• 5G foundation for the connectivity of 1T devices.
• This initiative is aimed to broadening Arm IP for 5G enablement by developing full eco
system for IP, solutions and platforms.
Scalable from hyperscale to the edge
High performance, secure IP and architectures
Diverse solutions and ecosystem
15 © 2019 Arm Limited
Neoverse N1 platform: Accelerating the transformation to a scalable cloud to edge infrastructure
Neoverse E1 platform: Empowering the infrastructure to meet next generation throughput demands
Arm Neoverse N1 and E1 platforms
16 © 2019 Arm Limited
Arm Neoverse – Investing in 5G IP Enablement for a Stronger Ecosystem
Complementary IP> 12 unique IP blocks provided and verified by Arm and Partners
Compiler Optimizations
Open Source & Commercial
SW Ecosystem
EDA Tools
Development Environments
Foundry Partnerships & Optimizations
Standards & Certification
Major contributor to over 100 OSS initiatives, & commercial SW partnerships
Integrated environments that span boards to servers to cloud
Active participation on over 25 standards and certification organizations
> 70% performance improvement for some workloads
Architecture & Reference
Designs
Over a dozen reference designs spanning edge to core
Support for all major EDA platforms
Optimized methodology, physical IP, & design utilities for advanced nodes
17 © 2019 Arm Limited
Neoverse Solutions
Complementary IP
Compiler Optimizations
Open Source & Commercial
SW Ecosystem
EDA Tools
Development Environments
Foundry Partnerships & Optimizations
Standards & Certification
Architecture & Reference
Designs
Reference Application Design
Application Specific Software
System Architecture
18 © 2019 Arm Limited
Arm SOC 5G: Compute and AccelerationTargeting the right balance of processing and acceleration for heterogeneous designs
High bandwidth, low latency interconnectWide range of implementations from few to many
coherent devices -> integrated SOC’sCombination of Arm IP and partner differentiation
l1
N1 N1
N1N1
Control Plane Processing
▪ 10’s x 000 instructions per packet▪ Fast event processing▪ Complex signalling▪ Trend: Evolving softwareNeed: Efficient, High-compute performance & IPC.
Arm IP & Software
N1 N1
4x E1
N1
Contextual Computing
▪ 1’s x 000 instructions per packet▪ Flexible cluster architecture▪ Context switching: cores & clusters▪ Trend: more complexity (LTE-A, 5G)Need: high-compute, low-latency performance
Arm IP & Software
4x E1
4x E1
4x E1
4x E1
User Plane Processing (eg. Packet processing)
▪ 1’s x 00 instructions per packet▪ Throughput driven, IO intensive▪ Deterministic performance▪ Trend: higher packet ratesNeed: small cores at maximum efficiency
Arm IP & Software
A
A
Specialized Processing (eg. User Plane Acceleration)
▪ ML, L1, content delivery, security▪ Diverse requirements▪ Trend: advanced modulation schemesNeed: DSPs, Accelerators
Accelerators
Accelerators
Partner differentiation & enablement
19 © 2019 Arm Limited
Arm: Accelerating Platform Availability for 5G NR
SoC -> RAN
Multi chip module -> RAN/Edge
Disaggregated SoCs
through PCB -> Edge/Core
Coherent Gateway
Neoverse CMN
3rd Party IP
Neoverse IP
Specialized Link/PHY
Tx Rx
Coherent Gateway
Accelerator IPML/AI, PP &
Security
CPU subsystem IP Augmented by:• Software• L1 capability• Network interface
& Security• POC’s & Platforms
20 © 2019 Arm Limited
5G RAN Configurations -- Examples
DFEPHY Low
PHY High
MACLow
MACHigh
RLCRRC
PDCPCoreRF
ML E1 N1 ML
Server
DFEPHY Low
PHY High
MACLow
MACHigh
RLCRRC
PDCPCoreRF
A5x E1NG
Efficiency core*
ML N1 ML N1 MLNG
Performance core*
NG Efficiency
core*A5x E1
NG Performance core*
NG Performance core*
NG Performance core*
For illustration purpose. The function splits may vary in the real implementations
21 © 2019 Arm Limited
Arm Software Platform Architecture for 5G
Linux OS
Infra Orchestration and Installer vSwitch
Apps Apps Apps
Bare metal Container VM
FirmwareArm Trusted
FirmwareDevice
Management
Device Drivers
Edge HW Platform
Arm Compute Subsystem
Accelerators MemoryIO
SDN Controller
Data Plane SR-IOV VirtIO
The basis for 5G enablement on Arm based platforms
Enablement of a full software ecosystem for 5G• Containerized & virtualized capability• Various OSS platforms pre-ported and
optimized• Availability of POC’s
• mCORD, Akraino etc.
Scaling from RAN to Core network
22 © 2019 Arm Limited
Arm IPG’s Approach to 5G Technology EnablementGeneral purpose compute
Heterogeneous SOC with mix of the above functions.
Infrastructure
5G Dynamic
New IP Commitments and Delivery Supplementing compute only capability.
PlatformsRadio, BBU, Edge and Core.
Consolidation of Silicon Supply basesNo. of players offering Arm based solutions.
ETSI 3GPP vs. More Open Platform approach
Changing Commercial Dynamic
Rollout TimescalesTechnology, Partnerships & Intercept
Client
Ind & Auto
Network Storage Security Ml/ai l1
23 © 2019 Arm Limited
Summary – Meeting the Platform Demands for 5G Across the Arm Ecosystem• We have a good starting position across the Arm eco-system in 4G RAN
• 5G ramping quickly, need for coverage for existing use case.
• Understanding challenges, priorities and execute• Use cases and platform requirements – Enterprise companies, Hyper-scalers and MNO’s• Radio – option splits, ML requirements and timelines• Network hierarchy – Virtualization, Containerization and Smart NICs• Open platforms – understanding & prioritizing need and executing
• Success of 5G is dependant on flexible, scalable platforms - power, throughput, latency
• A focus set of collaborative activities required to target DFE, BBU, Edge Compute and Core/DC architectures.• Hardware platforms with silicon partners and OEMs.• Software to target containerized/virtualized capability, API’s and abstraction of accelerator capability.• POC’s to fine tune performance & deliverables.
• Collaboration between multiple parties is key.
Thank YouDankeMerci谢谢
ありがとうGracias
Kiitos감사합니다
धन्यवाद
شكرًاתודה
© 2019 Arm Limited