1 ® Adtran, Inc. 2010 All rights reserved Proprietary and Confidential 1 ® Adtran, Inc. 2007 All rights reserved Cost-effectively Positioning Your Network

1® Adtran, Inc. 2010 All rights reserved Proprietary and Confidential 1® Adtran, Inc. 2007 All rights reserved

Cost-effectively Positioning Your Network for 4G/LTE

July 25th, 2012

Kurt RaaflaubEthernet and Optical SolutionsCarrier Networks DivisionADTRANhttp://www.adtran.com/mobilebackhaul

2® Adtran, Inc. 2012 All rights reserved

Delivering Scalable Reliability

Meeting Rigid QoS Requirements in the Presence of Service Expansion


A good backhaul solution…

Maintains a reliable, low cost connection between cell sites and mobile exchange

Assures compliance to service level agreements (SLAs) via the use of performance monitoring customer web-portal

Provides a scalable architecture reliably supporting future growth in service, customer, and network size

Supports both legacy and next generation service (including synchronization) delivery and transport

Minimizes the operational costs associated with end to end service activation, assurance and diagnostics.


Reliable, Low CostHigh QoE, High Availability, Simple

Always-on– Service Availability via Network Resiliency

Quality of Experience (QoE)– Low latency <5ms one-way delay– Predicates fiber; home-run point to point– Limited switch points and router hops

Prioritizes Real-time applications– H-QoS mechanisms– Policing, Queuing, Scheduling, Shaping– MEF compliant traffic management

Low-cost, simplified network– Ethernet access/aggregation– Minimal re-architecting

SLA Attribute

SLA Requirement

Max 1-way frame delay < 5msMax frame delay variation +/- 1msBit Error Rate (BER) < 1E10-9Frame Error Rate (FER) or Frame Loss Ratio (FLR)

< 1E10-6

Typical Mobile Backhaul SLA


Building a Strong ReputationSupporting SLA Monitoring and Reporting

Understanding SLAs– Well defined in any RFI

Meeting stringent demands of MNO– Building a robust network

Performance measurement and monitoring

– Standard-based PM tool set supporting ITU-T Y.1731, Y.1564

Proving compliance in near real-time– Customer Viewable PM Dashboard/

Web Portal– Sub 1ms measurement accuracy

Circuit-based

Because All Packet Networks are not Created Equal

Packet-based

Traffic Management

Performance Monitoring


Customer Viewable Web PortalProving SLA Compliance in Real-time

Creates a Precarious Situation

Collect/ Store Stats

Measure Accurately

to <1ms

Compare against

SLA

Present Compliance (Infractions)


Low Cost, Low Latency … Low Scale?

Layer 1 & 2Layer 2 & 2.5

Layer 3 (IP-connection)

Aggregation

Backhaul NetworkBackhaulOptimization

BackhaulOptimization

MobileNetwork

MobileNetwork

MobileApp

Client

MobileApp

Server

MetroAccess Mobile Core

4GIP/Ethernet

2GDS0/1/T1

3GML-PPP/T1 or

ATM IMA/T1

Internet

EPCIMS

MME

SGW

Router

DCS

EPC

MME

SGW

IMS

Router

Router

MNO 1MNO 1

MNO 2MNO 2

CSU

M13 or ADM

CSR

GigE

SLA Assurance & Sync Delivery

10 GigE


Mobile Video and Tablets

Mobile video traffic exceeded 50 percent for the first time in 2011.

Mobile network connection speeds will increase 9-fold to 2.9Mbps by 2016.

Source: Cisco VNI 1012

9® Adtran, Inc. 2012 All rights reserved Proprietary and Confidential

Multiple Drivers for Edge TransformationAll Segments Services are Scaling

Business Services

Metro Ethernet Services 100Mbps – 10Gbps

Mobile Backhaul4G/LTE Backhaul

Ethernet over Fiber

Residential Broadband

FCC Mandate for 100Mbps per Home


Reliability in the Presence of GrowthDelivering Scalable Reliability

Scalable architecture– 300Mbps up to 1Gbps per site, per MNO– 10Gbps interface to MTSO

Accelerating service delivery– More Applications– More Services

Lowering network complexity– More Customers– More Sites

Preserving QoE through the explosion– Multiple MNO customer per site– Mobile Video

Now what? More Fiber? 100G?


Scalability Through Packet OpticalBeing Ready for Ethernet Services Growth

Layer 1 & 2Layer 2 & 2.5

Layer 3 (IP-connection)

Aggregation

Backhaul NetworkBackhaulOptimization

BackhaulOptimization

MobileNetwork

MobileNetwork

MobileApp

Client

MobileApp

Server

MetroAccess Mobile Core

4GIP/Ethernet

2GDS0/1/T1

Internet

EPCIMS

MME

SGW

Router

DCS

EPC

MME

SGW

IMS

Router

Router

MNO 1

MNO 2

CSU

M13 or ADM

CSR

Backhaul Network

10G l

EoF

GigE

3GML-PPP/T1 or

ATM IMA/T1

SLA Assurance & Sync Delivery

EoF

EoF

Dual Homing


Optical Networking Transformation

SONET

+ WDM

WDM ROADM

Ethernet added

+ OTN

SONET

Voice-centric solutions limit packet services

Voice Centric Video Centric


Dedicated facilities per MNO or Service

– 1 or 10Gig increments– Wavelength separation– Resilient ring protection

Dedicated switch fabric per MNO or Service

– Hierarchical QoS– Physically isolated traffic paths

Service Flexibility/Applicability– Ethernet or OTN (SONET/SDH) services

Scalable Service Separation

Speed of LightLow latency Optical switching (Transponding)

Logical Path P2P with limited Ethernet switching

IP/MPLS Core

44, 88 or more 10Gig l

Dedicated pairs of Ethernet, OTN or Optical switching fabric separated

per MNO or per service

Ethernet Aggregation

PlatformMNO C

MNO B

MNO A


IP/MPLS Core

Typical Capacity Requirement (>10G)10G services drive need for Packet Optical

Service Type

Bandwidth per Type

Service Quantity

Bandwidth Sub-Total

Client l allocated

Network l allocated

Mobile Backhaul (4G)

300Mbps 3 MNO per cell site x 5 sites

4.5Gbps(1.5 G per MNO)

l1, l2, l3 (1 Gig per MNO)

l1, l2, l3 (10 Gig per MNO)

Mobile Backhaul (2/3G)

30Mbps 3 MNO per cell site x 5 sites

0.5Gbps n/a l5(1 Gig ODU0)

FTTH (GPON) 2.5 Gbps 1 Deployment 2.5 Gbps n/a l6

Metro Ethernet 1 Gbps 2 Enterprises 2 Gbps n/a l6

2.5 GigE

GigE

3 x GigE l

MNO C

MNO BMNO A

FTTH Deployment

Metro Ethernet Services

GigE

Total >10 Gbps

Quantity 5 Ethernet, xOADM and OTNDual Homing

MNO – Mobile Network Operator

Common Service Management


Broad Ethernet Market Applicability Cost-effective; Time-to-Market Sensitive

OR

LTE Backhaul Applicable

Any Ethernet Service Applicable – NOW or FUTURE


Reliable, Low Cost: Today & TomorrowDelivering Scalable Reliability

Delivering a Reliable, Low cost connection

– Always-on– Quality of Experience– Prioritizes Real-time applications– Low CapEx and OpEx

Building a Strong Reputation– Understanding SLAs– Meeting stringent demands of MNO– Proving compliance in near real-time– Continuous compliance

Maintaining Reliability through Growth– Scalable architecture– Lowering Network Complexity– Accelerating Service Delivery – Preserving QoE through the explosion

Meeting Rigid QoS Requirements in the Presence of Service Expansion


4G/LTE alone can not meet Demand


Methods to Increase Mobile Broadband Capacity– Growth in small cells: decrease cell radius

increase bandwidth per subscriber– Centralized baseband processing increase in

fiber connectivity to remote radio heads– Spectral efficiency improvements in LTE– Increases in spectrum availability– Use of non-license spectrum (i.e. Wi-Fi) for data

offload

Pico

BB Proc

Backhaul network

BB Proc

BB ProcPico

Pico

BB Proc

BB Proc

Current 2/3G170 MHz

4G/coming on line347 MHz

To be allocated by 2015300 MHz

By 2020200 MHz

FCC Spectrum

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

Increasing Mobile BB Capacity

19® Adtran, Inc. 2007 All rights reserved 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


Mobile Backhaul Network

(SLA-Based)

Wi-Fi Offload Architecture

ExchangeBonded Copper

Bonded xDSL or GPON/GE Uplink

GE

Cabinet

Outdoor AP or Metro Cell

TTG/PDG

Internet

Mobile Core

AAASecure 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

Solution: vWLAN enables scalable provisioning and policy enforcement for highly distributed Carrier Wi-Fi access networks, while enforcing predictable and repeatable behavior of unlicensed Wi-Fi spectrum


Roaming Hubs

Wi-Fi Advancements: Hotspot 2.0

Provider SSIDs RADIUS

Proxy

HLRs (Subscriber Info)

Service Provider Network

802.11u HS 2.0 AP

Hotspot 2.0 Overview– Hotspot 2.0 allows for seamless and secure roaming between

3G/4G and Wi-Fi networks: simple and secure as roaming between cell towers

– Phase 1: Discovery (covered by 802.11u) and Security (Covered by WPA2 Enterprise (includes EAP-SIM)

– Phase 2: Registration (account creation) and Provisioning (subscriber credentials and policy assignment)

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http://www22.verizon.com/

Documents

1 ® Adtran, Inc. 2010 All rights reserved Proprietary and Confidential 1 ® Adtran, Inc. 2007 All rights reserved Cost-effectively Positioning Your Network