Converged Access Network Architecture Overview

Home , OLT (mobile network)

Impact of 5G on Fiber Infrastructure

Colin Bryce Director, Mobile Network Engineering The next network evolution is shaping up to be the next revolution

>20 Gbps Peak Rates

>1 M/km2 X100 Connections Network Efficiency

<1 ms Latency Ultra-low latency

TRAFFIC Revenues & Traffic decoupled

Voice dominant

REVENUES

Data dominant

TIME

SCALABLE FLEXIBLE COST EFFECTIVE

Data Centers Enterprise / Venues

Wireless Wireline

4 PRIVATE AND CONFIDENTIAL © 2017 CommScope, Inc.Inc || v1.1v1.1 Network Densification is occurring with a variety of smaller cells, achieving greater coverage and capacity Traditional Network Future Network Structure: Structure: Much of the RAN network changes for 5G will be at higher frequencies & for greater capacity– this will mean greater density of smaller cells with shorter ranges… Re-farm of 2G & 3G spectrum at macro sites Capex Spend*

-26% Lower frequencies New Macro Build Increased sectorization Improved antennas, intelligence at the top -6% Upgrade Macro

Fiber ring +49%

Macro Small Cell Smaller form factor Higher frequencies Integrated antennas 2015 2016 2017 2018 2019

*Sources: ABI, Mobile Experts … increasing the number of sites; Power, Backhaul, and Site Acquisition (PBS) will continue to be significant carrier issues. Backhauled over Air or fiber, need-dependent. Macro/small cell growth will differ across geographies, depending on available fiber for backhaul– mix of microwave & fiber for backhaul. Saturation of DAS means new builds in tier II venues

Centralized RAN Centralized RAN • Large impact on transmission RU(s) DU+CU • Pooling and Co-ordination Gains • Ethernet fronthaul possible Hybrid RAN Hybrid RAN

• Large impact on transmission RU-DU RU(s) DU CU • Attractive if CU can be virtualized • Not suitable if small cells integrated with BBU DU-Distributed RAN

DU-Distributed RAN RU(s)+DU CU • Smooth migration from fully dist. RAN Network Core • Limited impact on transport (S1 like) • Ethernet Distributed RAN CU/DU at the site CU/DU-Distributed RAN RU(s)+DU+CU • Limited requirements on backhaul • Supports low latency • Suitable with xPON

New OSP

Dedicated Fiber Dedicated Fiber

Greenfield Coordination Coordination Distributed RAN

Centralized RAN Gains

Required

Latency Latency

Gains Data Data Rate

CU DU CU DU Required

Coordination Latency

Required WDM

Brownfield Required Data Rate Data High Layer WDM Split Ethernet CU/DU BBU Ethernet PON Low Layer DOCSIS Split

Reuse OSP

• Backhaul A Flexible • Site Acquisition Network

• Networks should to be designed and constructed keeping cost, flexibility and capacity in mind Businesses • Media installation is a cost driver, resulting in a parallelization to serialization conversion splitter

• Multiple Fibers 1:4 • Multiple Wavelengths • Converged Residential/Business/Mobile Services FTTH • Higher Data Rates

xWDM

Optical G/EPON Distribution Frame OLT (ODF) Multi-Use Flexible Access Small Cells LTE Terminal BBU Distribution Point xWDM 5G C/DWDM

CU/DU FTddP 5G Fixed Wireless

Central Office/C-RAN hub Distribution Access Sites

Key Technology Key Technology • Coexistance elements • Coexistance elements • High Density ODF Businesses • High Density ODF • WDM integration splitter • WDM integration

• Demark Panels 1:4 • Demark Panels • Edge Compute Handoff FTTH • Edge Compute Handoff MPO ODF

xWDM

Optical G/EPON Distribution Frame OLT (ODF) Multi-Use EHD Flexible Access Small Cells NGPON2 Distribution Terminal Point xWDM 5G C/DWDM tap/monitor

CU/DU FTddP 5G Fixed Wireless

Central Office/C-RAN hub Distribution DWDM Access Sites

Key Technology

• High Density Fiber Management Businesses

• Splitters splitter

• WDMs 1:4 • Ease of documentation and use • Cross Haul Capability FTTH

xWDM

Optical G/EPON Distribution Frame OLT (ODF) Multi-Use Flexible Small Cells LTE Access BBU Distribution Terminal Point xWDM 5G C/DWDM

CU/DU FTddP 5G Fixed Wireless

Central Office/C-RAN hub Distribution Access Sites

Key Technology • Different handoffs to Radios Businesses • Hardened Connectors • Multifiber Connectivity splitter

• WDM 1:4 • Splitters FTTH

Optical xWDM G/EPON Distribution Frame OLT (ODF)

Multi-Use LTE Small Cells BBU Flexible Access Distribution Terminal Point 5G C/DWDM xWDM

CU/DU FTddP 5G Fixed Wireless

Central Office/C-RAN hub Distribution Access Sites

1212 PRIVATE AND CONFIDENTIAL © 20172018 CommScope, Inc.Inc || v1.1v1.1 Distributed Power Connectivity system • Hybrid connectivity ( copper + fiber) Distributed Power • Options to combine FTTH, PON and WDM Connectivity Common infrastructure for power and communication networks

✓ Enables faster roll outs ✓ Reduces installation cost up to 60% compared to AC power from the grid ✓ Future proof infrastructure Distributed Power Connectivity architecture • A single grid injection point can feed up to 30 cell sites • Re-use available points at macro sites • Possible redundancy in micro-grid using additional cabinets • Combination of star and daisy chain

Businesses

splitter 1:4

FTTH

xWDM

Optical G/EPON Distribution Frame OLT (ODF) Multi-Use Flexible Access Small Cells NGPON2 Distribution Terminal Point xWDM 5G C/DWDM

CU/DU FTddP 5G Fixed Wireless

Central Office/C-RAN hub Distribution Access Sites