november 16, 2015 vp & gm, communications business unit ... · pdf filevp & gm,...
TRANSCRIPT
Why Virtualization is Essential for 5G
Francis ChowVP & GM, Communications Business UnitNovember 16, 2015
Evolution of Wireless Technology
3
1G• 1st
Generation Wireless Network
• Basic voice• NMT, AMPS
2G• 2nd
Generation Wireless Network
• Mobile voice quality
• Coverage and Capacity
• First digital standards [GSM, CDMA]
3G• 3rd
Generation Wireless Network
• Voice plus some data [Multimedia, Text, Internet]
• First Mobile Broadband [WCDMA, CMDA-2000, TDSCDMA]
4G• 4th
Generation Wireless Network
• Designed for data
• IP based protocols [Voice over IP]
• True mobile broadband
• Heterogeneous Network [FDD-LTE, TD-LTE]
2.4kbps
64kbps
2Mbps
100Mbps
1984 1991 2002 2010
Speed& Coverage
Time
5GVoice
Data
Vertically integrated applications
Traditional Wireless Cellular Network
4
• OPEX dominates expenses− Power bill− Site acquisition/renting costs increasing
• Insufficient Flexibility and Scalability− Overprovision capacity to handle load dynamics
• Office vs Residential area/time
− Proprietary Custom solution• Unable to support diverse application services
− Challenge to launch different network configurations• Self-Organizing Networks, New Spectrum & Access Technologies
Processing Loadidle
utilized
RRU
BBU
Source: China Mobile
5G Vision
5
• Massive capacity and massive connectivity − 100x connected device with 100x user data rates
• Efficient use of spectrum and network resource to reduce Total-Cost-of-Ownership
• Flexible and scalable infrastructure to enable value added services
Requirements to Realize 5G vision
6
• Enhance Network Smartness− Smart capacity/spectrum allocation− Application awareness− Coordinated communication
• Enable Telecom Cloud− Move cloud to mobile edge− Ultra Low-latency and high bandwidth − Hardware Platform Standardization
Network Efficiency
Capacity Increase
User Experience
Network Virtualization
Market Creation
Business Model
Not Only Any Time, Any Where … But also Any Thing, Any Service …
Figure source:: ZTE
Evolution to Centralized RAN
7
• Centralized Radio Access Network (C-RAN) with pooled baseband− Site Reduction− Lower Cooling cost
• Coordinated processing− Lower Blocking Rate− Improve capacity
RRU
RRU
RRU
RRU
BBU Pool
Cloud RAN
8
• Virtualized Cloud-RAN− Generic hardware platform− Network Virtualization − Load Balance − Multiple Radio Access Technologies
• New service enablement− Location-based services− “Zero” latency provision
• Virtualized function support− Seamless upgrades− Processing resource reuse when idle
RRU
RRU
RRU
RRU
BBU Servers
Processing Load
UHD Video Steam Location Service Low Latency App
9
Layer 2/3Core
PHY LayerFEC5G
LTE-ULayer 2/3
CorePHY Layer
PHY + FECRRU
RRU
RRU
RRU
Cloud RAN
• Virtualized Cloud-RAN− Generic hardware platform− Network Virtualization − Load Balance − Multiple Radio Access Technologies
• New service enablement− Location-based services− “Zero” latency provision
• Virtualized function support− Seamless upgrades− Processing resource reuse when idle
10
Layer 2/3Core
PHY + FECGaming
5GLTE-U
LTE-IoTAugmented
RealityLocation Services
RRU
RRU
RRU
RRU
Cloud RAN
• Virtualized Cloud-RAN− Generic hardware platform− Network Virtualization − Load Balance − Multiple Radio Access Technologies
• New service enablement− Location-based services− “Zero” latency provision
• Virtualized function support− Seamless upgrades− Processing resource reuse when idle
Cloud-RAN Architecture
11
• CPU Elements− Multiple radio access technology
stacks and protocols
− New application services
− Control and monitor interfaces
• FPGA Elements − Acceleration for real-time function
− Switching for scalable load-balancing
− Peripherals for high bandwidth
interfaces/ connections L1 Accelerator
VM
VM
VM
FPGA
External
connectivity
External
connectivity
CPU
VM
Hypervisor
Interconnect
Interconnect
Priority Management
Switch
L2/3 AcceleratorVideo/Security Accelerator Other Services
Accelerator
2G/3G Service
SW Stack
LTE-IoTService
SW Stack
5GService
SW Stack
Low LatencyServices
CDNCache
Other Services
CloudM vEPC
Sell spare processing capacity
Lease additional capacity
Virtualized RAN Example
• Centralized Processing Capability− Traffic and Load-balancing− Network optimization
• Virtualized Processing− Reuse or resell unused capacity− Value-added (e.g. location based) services
• Low-cost radio end-points− Independent processing for each end-point
improves capacity over traditional DAS− Connectivity with fiber, radio fronthaul or
Ethernet
Load
ing
M T W T F Sa Su
New local capacity design Total
Levi StadiumConvention Center
Great America
V-CRAN Data Center
Conventional local capacity design
Infrastructure Business Model
Service Provider
Site and Infrastructure
RAN Hardware
RAN Software
Network Optimization
Value Add Services
Network
Operator
Traditional
OEM
• Current business model is dominated by large incumbents
• Limited opportunity for disruption
Service Provider
Site and Infrastructure
RAN Hardware
RAN Software
Network Optimization
Value Add Services
Enhanced Network Operator
Infrastructure Business Model
Virtualized Cloud-RAN enables new business models• Expanded Operator
Capability− Value-added services
− Hardware access for network/application optimization
Service Provider
Site and Infrastructure
RAN Hardware
RAN Software
Network Optimization
Value Add Services
Traditional
OEM
Infrastructure Business Model
Virtualized Cloud-RAN enables new business models• Expanded Operator
Capability• Enlarged OEM
Scope− Value-added services
Service Provider
Site and Infrastructure
RAN Hardware
RAN Software
Network Optimization
Value Add Services
SoftwareProvider
Infrastructure Business Model
Virtualized Cloud-RAN enables new business models• Expanded Operator
Capability• Enlarged OEM Scope• New Entrants
− Data Center Providers to enable RAN hardware
− New-style OEM with hardware-agnostic, software solution
− Vertical market applications migrate to new software providers
Summary
17
• 5G means smartness, efficiency and business model disruption
• Virtualized CRAN provides an effective solution for 5G
• CPU and FPGA reprogrammable acceleration enables 5G vision