® Adtran, Inc. 2009 All rights reserved

Robert Conger Director, Product Management

HetNet Backhaul and Mobile Data Offload Solutions

2

Enabling Mobile Services Expansion

“39% of mobile data will be offloaded by 2015” - Cisco VNI

Cell site expansion

drives 1G/10G optical access

Small cell expansion drives 50-100M ubiquitous access

Street level small cell deployments augment roof top macro cell coverage.

Macro Cell Expansion and 4G Upgrade – Build more marcocell site towers – Upgrade 3G to 4G LTE/LTE-Advanced

Small Cell Rollout and Expansion – Reduced cell radius increases user capacity Metro, Pico and FemtoCell deployment Remote Radio Head/Distributed Antennas

Leverage Wi-Fi Access for Mobile Offload – Use of non-licensed spectrum frees up 4G

spectrum for capacity elsewhere

3

Key Trends in Fixed Access

Speed – Competition driving the demand for higher bandwidth

services – GPON, P2P Ethernet and Bonded VDSL2 w/ system

level vectoring emerging as leading access technologies to deliver these bandwidths

Convergence – Leverage wide-scale FTTx broadband access

networks to serve residential, business, and mobile networks

– Increase reach of high-capacity Ethernet services to high-value enterprise and mobile services

High-Capacity Wireline Broadband Networks Evolving to Support Mobile Backhaul Services

4

CSR/ EAG

NodeB/ eNodeB

Ethernet

Mobile Core

PE Routers

CSR/ EAG

NodeB/ eNodeB

Ethernet

1G or 2G per cell site

MPLS Tunnel Nx10G

Redundant Edge Aggregation

Increasing Macro Cell Scalability Optical Networking for Service

Separation and Scalability

Fiber Hub Site

Architectural Recommendations for Macro Cell Backhaul: Maximize the use of optical networking in order to increase scalability,

reduce latency, and provide required service separation Eliminate single points of failure through redundant edge aggregation Reduce multi-hop access networks to minimize complexity and latency Implement SLA monitoring through advanced OAM tools (e.g., Y.1731)

5

Flexible Small Cell Backhaul

Exchange

Indoor/Outdoor Remote NTEs

GE/10GE

GPON/GE Uplink Metro Cells

Cabinet Mobile Core

Architectural Recommendations for Small Cell Backhaul: Utilize a mix of access architectures (fiber, copper, uwave) to

deliver high-capacity Carrier Ethernet services to metro cells Implement consistent OAM protocols for macro cell and small cell

architectures Mix of indoor and outdoor NTEs are required for service delivery L2VPN and L3VPN connectivity back to mobile core

Bonded VDSL2

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Wavelength Service Delivery for MBH

Mobile Operator

Exchange

Metro Cell

Remote Radio Head

Centralized Baseband Processing

Wavelength Service Delivery for RRHs and Macro Cells: Transparent wavelength services to the cell site: low latency, scalable, and

reduced complexity Edge-optimized optical networking reduces cost of all-optical backhaul networks CPRI-aware, low-latency OTN for remote radio head connectivity

Ethernet over

DWDM

CPRI

Macro Cell

Tranparent Wavelength

Service

CPRI CPRI over DWDM Ring w/ OTN

DWDM w/ Optional OTN

OTN PM for SLA Monitoring

DWDM Transport

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IP/MPLS Core

Scalable Service Separation

Wavelength separation of services in converged access networks: residential, enterprise, and mobile backhaul services

Mix of GPON and fully redundant Ethernet edge aggregation

GPON

GigE

N x λ Wavelength Services

FTTH Deployment

Metro Ethernet Services

GigE

Ethernet, xOADM and OTN Metro Cells

and Remote Radio Heads

Optimized HetNet Backhaul with Broadband Access and Packet Optical in Single Platform

8 12 ® ADTRAN, Inc. 2011 All rights reserved ADTRAN Company Confidential

This is a lot more expensive than this This was designed for voice and this was designed for data So, carriers are devising ways to keep voice on the current cellular infrastructure and move all data sessions to available Wi-Fi infrastructure

Mobile Data Offload

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Mobile Backhaul Network

(SLA-Based)

Exchange Bonded Copper

Bonded xDSL or GPON/GE Uplink

GE Cabinet

Outdoor AP or Metro Cell

TTG/ PDG

Internet

Mobile Core

AAA Secure Mobile Core Tunnel for Seamless Mobility

AP Mgmt & SLA Monitoring

(Control Plane)

802.11n 5Hz Directional

Challenges with Wi-Fi Offload Managing scalability of thousands of APs Ensuring seamless connectivity and mobility between 3G/4G and Wi-Fi networks Taming unpredictable nature of traditional Wi-Fi networks

Scalable, cloud-based virtual control from

existing data centers

3G/4G Voice

Wi-Fi Offload Addresses Bottlenecks in Radio

Network and MBH network

Wi-Fi Offload Architecture

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Hosted Carrier Wi-Fi

Customer 1

Customer 2

Customer 3

Master – Full Control Domain Admin - Reports & Monitoring Only

Domain - Full Control

Domain - No Control Access

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Service Assurance

Ethernet services and Y.1731 OAM PM reporting End to end service performance

reporting Service level statistics

Customer service OAM PM monitoring and reporting SLA monitoring

Customer Portal Enables secure customer

service quality visibility Backhaul and Wireless Carrier

requirements compliance Distributed data collection

points Ongoing enhancements

Configurable reports Multi-interval reporting

SLA enforcement to insure revenue stream

12

Mobile Backhaul/Offload Solutions

vWLAN Solution Carrier Wi-Fi and Mobile Backhaul

WLAN Access Enterprise Connectivity

End-to-End WLAN Service Management

Appliance based option

13

• Small cell, centralized baseband processing, and Wi-Fi offload technologies must complement macro cell improvements to meet mobile broadband demand

• Backhaul architectures must evolve to support a mix of residential, enterprise, and mobile backhaul service delivery

• vWLAN along with new Wi-Fi standards (e.g. Wi-Fi Passpoint) provide the scalability, interoperability, and functionality required to integrate licensed and unlicensed spectrum solutions

Summary

® Adtran, Inc. 2011 All rights reserved

Thank You Please visit: http://adtran.com/access Email info@adtran.com or call 800-9ADTRAN

Mobile Backhaul and Mobile Offload Solutions