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Laying the Foundation for 5G
Erik Gronvall VP Strategy and Market Development
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Three 5G use cases
Each shift in network technology brings new opportunities and new user experiences
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Three key 5G strategies
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Converged networks can range from shared physical assets to fully integrated software & hardware platforms and more
Network convergence can be defined in many ways
Physical Spectrum Technology
Convergence delivers a competitive advantage by improving efficiency, agility, scale, and time-to-market
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A Journey of Transformation Convergence: Merging of Wireless and Wireline
Drivers
Roadmap
Results
Cell Densification New Spectrum Enabling Technologies New Services
SCALABILITY SPEED SAVINGS
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Convergence: The Merging of Wireless & Wireline Start from shared assets and work towards fully integrated systems
• Densification of the wireless network & fixed broadband deployments
• Leverage existing footprint and locations for multi-use, multi-service delivery
• Plan and build wireless/wireline simultaneously
• Common hardware for SDN/NFV • Applications run on COTS • Similar processes
• Network functions converge • Common credentials & policies • Containerization
Efficiency, agility, scale, and time-to-market all improve when networks and systems are converged.
Converged Access
Infrastructure
Converged Networking Platforms
Converged Applications
v-OLT SDN
NFV
Multi-Access Edge Computing
C-RAN
1 fiber cabinets/hubs
2 3
locations closures
Network Slicing CORD
v-BBU COTS
NGPON2
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Converged Access Network Architecture Overview
• Networks should to be designed and constructed keeping cost, flexibility and capacity in mind
• Media installation is a cost driver, resulting in a parallelization to serialization conversion
• Multiple Fibers
• Multiple Wavelengths • Converged Residential/Business/Mobile Services
• Higher Data Rates
G/EPON OLT
LTE BBU
5G CU/DU
OpticalDistributionFrame
(ODF)
C/DWDM
FTdd
P
AccessDistribution
Flexible
DistributionPoint
SitesCentralOffice/C-RANhub
FTTH
Small Cells
Businesses
xWDM
5G Fixed Wireless
1:4
splitter
xWDM
Multi-UseAccessTerminal
LAA
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Reducing latency: Where to place C-RAN (BBU/MEC) hubs?
Backhaul (IP)
Cell site MSC/Central Office
BBUBBUBBUMEC Fronthaul (CPRI/eCPRI)
BBU/MEC hub
Closer to the core
Closer to the edge
• Consolidates a large number of sectors
• Resembles a small data center: power, cooling, cabling, COTS
• Incorporates SDN, NFV, virtualization
• Supports a smaller number of sectors • Leverages existing sites – huts, shelters,
cabinets • Increased requirements for power and fiber
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Solving backhaul challenges
FTTH
Small Cells
Businesses
G/EPON OLT
LTE BBU
5G CU/DU
OpticalDistributionFrame
(ODF)
C/DWDM
FTdd
P
xWDM
Multi-UseAccessTerminal
5G Fixed Wireless
1:4
splitter
xWDM
AccessDistribution
Flexible
DistributionPoint
SitesCentralOffice/C-RANhub
Flexible Distribution Points • Fiber Counts
• Optical Components
• Mix of services
• Documenting Changes
• Installation Location
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Flexibility is Key • Fiber Counts
• Test Access
• Optical Components
• Locations for Installation
Converged Networks will provide leverage
FTTH
Small Cells
Businesses
G/EPON OLT
LTE BBU
5G CU/DU
OpticalDistributionFrame
(ODF)
C/DWDM
FTdd
P
xWDM
5G Fixed Wireless
1:4
splitter
xWDM
AccessDistribution
Flexible
DistributionPoint
SitesCentralOffice/C-RANhub
Multi-UseAccessTerminal
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Convergence: Driving a Change in Network Deployments
Drivers
Roadmap
Results
Cell Densification New Spectrum Enabling Technologies New Services
SCALABILITY SPEED SAVINGS
Thanks
LAA
Backup Slides
CRAN
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C-RAN solutions for macro and in-building networks
OneCell® • Interference and handover elimination • Cell virtualization for added capacity • Radio coordination for performance • Simplified, lower-cost deployment
Radio
ION-evolution • Flexible, efficient baseband capacity
allocation • Leverage C-RAN macro hubs for IBW • Reduce space and power costs
Signal Distribution
5G FWA • Delivers residential fixed wireless
broadband services over millimeter wave spectrum (28GHz, 39GHz, and more)
• 256 element antenna array with beam-steering
mmWave Radio
C-RAN Hubs • Centralized hubs for BBU pools improve
efficiencies and inter-cell coordination • Optical infrastructure supports wavelength
management and CPRI monitoring
Hubs
Fronthaul Fiber • Access terminals, C/DWDM, closures,
FTTA and fiber from the RRU to the CO • Remote power solutions with hybrid cable
(fiber + copper) for small cells
Outside Plant Fiber Network
C-RAN Cabinets • Single solution for power, cooling,
connectivity • Deploy quickly with a small footprint • Minimal acoustic signature and power
Outdoor Cabinets
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Distribution or RAN Core
BBU
ManagedwithSDN&NFV
Virtualization will lead to commoditized equipment, Centralization will also drive demand for flexibility in the physical layer, more fiber between the RRH & BBU, and different types of RRHs
BBUPoolswilllookmorelikeadatacenterwithSDN/NFVequipment,fiber,power–ifcloseenough.
CRANMigration
Baseofthetowerwilllookmorelikeanintelligentservicehub,managingpowerandfiber–requiringmoresolutions(Cabinets,Steel,SiteRise,PowerShift,Fiber,Connectivity,etc.)
BBUBBUPoolNode
Hut/Shelter
Cabinet
Fronthaul&backhaulwillconverge,macro&smallcellswillconnectwithfiber,resemblingFTTHArchitectures
VirtualCore
BBUPools&MicroDC’swillmoveclosertoedge;CO’swillhostthese
FronthaulBackhaul
The Future Of The RAN Centralization Before Virtualization
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Evolution of RAN Architectures Cloud RAN
Inter BBU Pooling + CoMP
vBBU1 vBBU2 vBBU3 Switching Layer
Backhaul to Core
Backhaul to Core
Backhaul to Core
BBU Pool
30 or > cells per BBU
30 or > cells per BBU
Future C-RAN
30 or > cells per BBU
Fiber Fronthaul
Fiber Fronthaul
Fiber Fronthaul
Standard BS BBU Remoted
Fibr
e
Radio
BBU
Co -
Ax
Conventional RAN
Traditional Site
Remote Head Site
(RRU)
BBU
Radio
Backhaul Fiber/M-Wave
Backhaul Fiber/M-Wave
BS
BS
Core Network Core Network
BBU Centralised
Phase 1 Centralization
BBU1
Backhaul to Core
Backhaul to Core
BBU Pool
Radio Radio
3 cells per BBU
3 cells per BBU
BBU2
Fiber Fronthaul
Centralised RAN
CP
RI/O
BS
AI
CP
RI/O
BS
AI
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RAN Fronthaul Transport Options
Microwave For situations where CPRI transport between RRH and BBU is required over short distances and fiber is not available, microwave transport is an attractive option.
+ Flexible Deployment + Cost effective - Bandwidth limited - Distance limited
Dedicated Fiber An attractive option for scenarios where an operator has a large installed base of available fiber. Also an option for scenarios where it is more cost effective to lease/install fiber than to deploy an optical transport element at the cell site. + Simplicity + Grey SFP’s - Large use of fiber - Cost prohibitive
Active Wavelength Based Systems Utilizing OTN for CPRI transport does require careful consideration as a number of the highly valuable features of OTN also add latency.
+ Use of Grey SFP’s + Enables rings & mesh - High Latency - Powering Requirements
Passive Wavelength Based Systems Passive WDM offers a good combination of characteristics for CPRI transport. In particular, CWDM supports low propagation delays and high data throughout. It is an economical choice, both in equipment costs and in its use of fiber resources. + Increases fiber capacity + No increase in latency - No native OAM - Coloured SFP’s needed
Passive Optical Network PON is a potentially attractive option for CPRI transport as it can provide access to an existing fiber plant located in high-traffic areas, where small cell deployment are most likely to occur.
+ Additional revenue stream + Access to fiber in high density
areas - Limited footprint - Coloured SFP’s needed
ALL FRONTHAUL OPTIONS WILL NEED TOBE CONSIDERED