EXFO eBook Fronthaul to Backhaul Field Testing En

LTELTEL

LTELTELRRH

RRH

mote Radio H

Radio Heads

Head

s

Mac

ro C

ell

SCPRI

CPRI

FTTT

OSBAI

OSBAI

DASA

S

LTELTELTE

RRH

RRH

io Heads

Macro Cell S CPRI

CPRI F

FTT

4G

3G

3GOSBAI

OSBAI

AI

DASoDAS4GS4G A

FTTATAT FTTATAT

FTTTCellMacro Cell

Macro Cell

Small CellsSm

LTELTEL

LTELTEL

LTELTELLTELTEL

RRH

RRH

mote Radio H

Rem

Cell

iDAS

CPRIFTTT

4GOSBAI

OSBAI

FTTATAT

FTTTSLA

SLA

Macro Cell

Small Cells

S

LTELTELTE

RRH

RRH

RRH

io Heads

iDAS

CPRI

CPRI F

T

4G

3G

3GSBAI

OSBAI

AI

oDASTATAT FTTATAT

FTTT

FTTT

cro Cell

CellMacro Cell

Macro Cell

all Cells

Sm

Quick Reference Guide

LTELTELRRH

mote Radio H

o AS CPRI

4GOSBAI oDASTATAT

FTTTSLA

Macro Cell

AS4G OSBAI oDASAcro Cell

iDASRRH

io Heads CPRI F4G OSBAIFT

TT

FRONTHAUL TO BACKHAUL FIELD TESTING

TEadiOSBAIcro C

S

TEadi4GOS

OSBAI

FTT

cro C

Small

adi4G


RRH

RRH

m

AI

FTTT

lls

FTTT


RRH

eads

Rem

ote

Radi

Mac

ro C

eFTTT

SLA

4G 3G4G

LTELTELRRH

Remote Ra

Mac

ro C

ell

iDAS CPRICP

RSL

A

FTTTO

FTTATAT

FTTT Ma

Macro Cell

all CellsoDAS

LTELTELLTELTEL

RRH

eads

mote Radio HeadsRe

mot

e Ra

dio

Head

s

Rem

ote

Radi

o He

ads

Mac

ro C

ell

Macro Cell

iDAS

CPRI

CPRI

CPRIFTTT

SLA

4G 3G

AI

OSBAI

oDAS FTTATAT

4G

FTTT

lls LTELTEL

LTELTEL

RRH

RRH

Remote Ra

Macro CellM

acro

Cel

l

iDAS CPRICP

RISL

A

FTTT

4G4GT4GTA4GATAT4GTAT

3G

O

O

OSBAI

oDAS4GS4G

FTTATAT

FTTATAT

F

FTTATAT

FTTT

SLAMacro Cell

Ma

Macro Cell

S

all CellsoDAS

LTELTELeads

Rem

o

o He

ads

ll

Macro CellCPRICPRI

FTTTOSBAIFT

TT RRH

Remote RaRI

4GFTTATATSLAMacro Cell


2

TABLE OF CONTENTS

1 Introduction Market Conditions ................................................................... 4 Mobile Network ....................................................................... 5 Critical Testing Requirement ................................................. 6

2 FTTA/Remote Radio Heads (RRH) ............. 8 Construction ............................................................................ 9 Troubleshooting .................................................................... 11 Service Validation and Troubleshooting ............................. 12

3 Distributed Antenna System (DAS) ...... 14 Construction .......................................................................... 15

4 Mobile Backhaul Construction .......................................................................... 17 Turn-up and Troubleshooting ............................................... 18

5 FTTA/RRH/DAS/Backhaul Reporting ................................................................................21

6 FTB-1 Tri-Pak Series Solution ..................................................................................22 Top Takeaways ....................................................................... 24

Authors Marc Rondeau, Product Specialist, EXFOHammadoun Dicko, Product Specialist, EXFOOlivier Tremblay-Lavoie, Marketing Manager, EXFOSylvain Cornay, Marketing Manager, EXFO

EXFO Inc.October 2013

3

Mobile network operators (MNOs) are constantly looking for ways to improve their subscribers’ experience, while trying to keep their operational expenses under control. Given the proliferation of OTT applications and the ever-increasing bandwidth consumption that comes with it, maintaining high-quality services at a reasonable cost is becoming quite a challenge.

Operators are forced to evaluate and deploy new technologies and network confi gurations to meet their objectives. We are referring here to the deployment of packet-based networks, bringing fi ber not only to the base of the tower, but all the way up the antenna, as well as strategically setting up any number of small cells and remote radio heads to increase capacity and coverage effi ciently.

So what do these new deployments and forklift upgrades of mobile infrastructures have in common? In both cases fi ber and Ethernet are the preferred technology to overcome the many technical and operational challenges encountered.

INTRODUCTION

Mobile network operators (MNOs) are constantly looking for ways to improve their subscribers’ experience, while trying to keep their operational expenses under control. Given the proliferation of OTT applications and the ever-increasing bandwidth consumption that comes with it, maintaining high-quality services at a reasonable

Operators are forced to evaluate and deploy new technologies and network confi gurations to meet their objectives. We are referring here to the deployment of packet-based networks, bringing fi ber not only to the base of the tower, but all the way up the antenna, as well as strategically setting up any number of small cells and

So what do these new deployments and forklift upgrades of mobile infrastructures have in common? In both cases fi ber and Ethernet are the preferred technology to overcome the many technical and operational challenges encountered.

3

Mobile network operators (MNOs) are constantly looking for ways to improve their subscribers’ experience, while trying to keep their operational expenses under control. Given the proliferation of OTT applications and the ever-increasing bandwidth consumption that comes with it, maintaining high-quality services at a reasonable

Operators are forced to evaluate and deploy new technologies and network confi gurations to meet their objectives. We are referring here to the deployment of packet-based networks, bringing fi ber not only to the base of the tower, but all the way up the antenna, as well as strategically setting up any number of small cells and

So what do these new deployments and forklift upgrades of mobile infrastructures have in common? In both cases fi ber and Ethernet are the preferred technology to

4

TODAY’S MOBILE NETWORK REALITYExpanding coverage and capacity through various architectures

5

CRITICAL TESTINGMobile network requirements

Technological progress stops for no one. Mobile operators are always racing to be fi rst-to-market. Field technicians must be, or even become, all-around technical experts, with abilities to effi ciently address any situation they face, regardless of technology or network architecture. They can not afford to wait for external help, or come back later to complete the job.

CONSTRUCTION TURN-UP & TROUBLESHOOTING OPERATIONAL EFFICIENCY

NetworkConnectivity

Service Validation

Performance Optimization

› Services & SLAs › Ethernet Services › CPRI/OBSAI Protocols › Packet Transport

Network Synchronization

› Cloud-Based Solution › Automated Test

Confi guration › Automated Test Data

Management › Asset Management

› Testing the OpticalPhysical Layer

› Connectors (dirty and/or damaged)

› Link Characterization › Network Documentation

6

FIBER CHARACTERIZATION

Insertion Loss,Splices andConnectors

Link ORL

Connector Cleanliness

LossBudget

Macrobends

What to look for

7

FTTA/REMOTE RADIO HEAD (RRH)

Antenna

Remote Radio Unit

Fiber Jumper

Fiber Terminal

Fiber Cable

Baseband Unit

COAX Jumper

Base Junction Box

8


CONSTRUCTION: STEP 1

WHAT

WHO

WHERE

Connector Inspection

Two Technicians

Ground and Top

9



WHAT

WHO

WHERE

End-to-end IL

Two Technicians

Ground and Top

iOLM Results

Link length: 557,6 ft

Acquisition status: Completed

Wavelength (nm) Link loss (dB) Link ORL (dB)

1550 1,035 45,36

1310 1,051 44,36

Pass

10


Technician 1

40 ft

425 ft

100 ft

TROUBLESHOOTING: STEP 1

WHAT

WHO

WHERE

Power

One Technician

Ground

› If power is within specs = possible issue with Rx› If power is not within specs = possible issue with fi ber

11


FTB-1 with iOLM

Technician 1

40 ft

425 ft

100 ft


WHAT

WHO

WHERE

Distance to Fault

One Technician

Ground

iOLM Results

Link length: 573,9 ft

Acquisition status: Completed

Wavelength (nm) Link loss (dB) Link ORL (dB)

1550 2,673 45,60

1310 1,901 44,36

FAIL

12


Technician 2

Technician 1

40 ft

425 ft

100 ft

WHAT

WHO

WHERE

CPRI/OBSAI Data RateLoopbackHardwareRequired

BERT and Latency

Ground and Top

Supported on FTB-860/860G/870/880and 7xxG Series.

SERVICE VALIDATION AND TROUBLESHOOTING

› Unframed BERT (Layer 1) at Following Two Interfaces: 2.4G and 3.1G

› PRBS and CJPAT Patterns› Round-Trip-Delay (Latency) Measurement

13

DISTRIBUTED ANTENNA SYSTEM (DAS)

CONSTRUCTION: (BIDIR)

CONSTRUCTION: (UNIDIR)

WHAT

WHAT

DIRECTION

DIRECTION

Connector Inspection and Insertion Loss

Connector Inspection and Insertion Loss

Bidirectional

Unidirectional (Technician at A)

Characterization Parameters

Uplink Fiber Downlink Fiber

END A END B END A END B

Connector Yes Yes Yes Yes

ILFrom A to BFrom B to A

From A to BFrom B to A

ORLView from AView from B

View from AView from B

Characterization Parameters

Uplink Fiber Downlink Fiber

END A END B END A END B

Connector Yes Yes Yes Yes

IL From A to B From A to B

ORL View from A View from A

14


DAS Head End (Host Unit)

Remote Unit

COAX

Remote Unit

CONSTRUCTION: STEP 1 CONNECTOR INSPECTION

15


DAS Head End (Host Unit)

Remote Unit

COAX

Remote Unit

CONSTRUCTION: STEP 1 CONNECTOR INSPECTION

iOLM Results

Link Length: 557,6 ft

Acquisition Status: Completed

Wavelength (nm) Link Loss (dB) Link ORL (dB)

1550 1,035 45,36

1310 1,051 44,36

16

MOBILE BACKHAUL

S-GWS-GW

eNBBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAULBACKHAUL

eNBeNB


WHAT

HOW

› Characterize Physical Link› Validate Loss Budget› Locate and Fix Problems

› Connector Inspectionand Maintenance

› iOLM/OTDR Testing: ›Fiber Link Continuity ›Fault Finding/Distance to Fault› Documentation

17

MOBILE BACKHAUL

TURN-UP AND TROUBLESHOOT: STEP 2

WHAT

HOW

› Validate Confi guration/Performance (SLA)› Detect and Locate Network Issues/Failures

Automated Remote and/or Local Service Validation: › EtherSAM (Y-1564) ›Service Confi guration Test

› CIR / EIR / BWP ›Service Performance Test

› Frame delay, Frame delay variation, frame loss ratio, throughput

›Simultaneous Bidirectional Tests or Roundtrip ›Burst Test

18

MOBILE BACKHAUL

TURN-UP AND TROUBLESHOOT: STEP 2

WHAT

HOW

› Validate Sync Confi guration/Performance› Detect and Locate Sync Issues/Failures

Synchronization performance validation: › SyncE/1588: › Packet Transport Network Synchronization › Connectivity to Grandmaster Clock › Synchronization to Towers

19

MOBILE BACKHAUL


WHAT

HOW

› Validate TCP Performance› Detect and Locate Network Issues/Failures

Server and/or Client Service Validation: › TCP Throughput Test ›Determine Optimum Window Size ›Measure Round-Trip Time (RTT) ›Measure Maximum TCP Throughput

20

FTTA/REMOTE RADIO HEAD/DAS/BACKHAUL

DOCUMENTATION/REPORTING: STEP 3

EDIT ANALYZE DOCUMENT CENTRALIZE

21

ONE FIELD-OPTIMIZED TESTING SOLUTIONFTB-700G Series

As fi ber and Ethernet become the leading technologies of choice for MNOs, it makes perfect sense for fi eld technicians to be equipped with a solution that lets them characterize fiber links as well as the services that run over it, be it Ethernet, CPRI/OBSAI, SyncE, etc.

EXFO’s FTB-700G Series is the only handheld, user-friendly and automated testing solution on the market that integrates all the required testing functionalities needed to effectively activate, validate and troubleshoot mobile services into a SINGLE module.

The FTB-700G Series is the ONE testing solution that is specifi cally designed to address the needs of today’s mobile network fi eld technicians.

Explore the possibilities!

As fi ber and Ethernet become the leading technologies of choice for MNOs, it makes perfect sense for fi eld technicians to be equipped with a solution that lets them characterize fiber links as well as the services that run over it, be it Ethernet, CPRI/OBSAI, SyncE, etc.

EXFO’s FTB-700G Series is the only handheld, user-friendly and automated testing solution on the market that integrates all the required testing functionalities needed to effectively activate, validate and troubleshoot mobile services into a SINGLE module.

The FTB-700G Series is the ONE testing solution that is specifi cally designed to address the needs of today’s mobile network fi eld technicians.

Explore the possibilities!

22

FTB-700G SERIESExplore the possibilities!

A N A L Y S I S S O F T W A R E

Automatic pass/fail connector analysis in seconds

No risk of misinterpretation

Aligns repeatably for consistencyof reports

Available as an on-board option with the FIP-400B Fiber Inspection Probe

Automatic fi ber image centering

On-board connector endface analysis

Optimal digital image quality with three levels of magnifi cation

Re-engineered, rugged design with ergonomic access to all controls

The best of OTDR-based technologiesEvents are detected with the best resolution, by using multiwavelength and multipulse widths.

Turning complexity into simplicityAll OTDR traces are analyzed and integrated into a single link view converting complex data into simple results.

Optimized fi ber deploymentsA short learning curve and low risk of misinterpretation ensure consistent test results across all test teams.

SLA validation in a single test

Simultaneous bidirectional testing

Standards-based (ITU-T Y.1564)

100% fi rst-time-right results

8× faster deployment

FIP-400BNext-Generation FiberInspection Probe

› Automation and business intelligence › Cloud-based equipment and test data

management

› Budget fl exibility › Available anywhere, anytime and to anyone › Eliminating barrier to fi eld-testing effi ciency › Feature-rich solution

23

› Activate and maintain a high numberof towers and small cells.

› Overcome limited technical resourcesand knowledge.

› Work with tight schedules and budget constraints (OPEX pressure).

› Maintain accuracy standards acrossthe various deployed technologies.

› Validate numerous service classes.

› Optimize network performance.

› Eliminate unnecessary truck rolls.

TOP TAKEAWAYS

23

COMBINING ETHERNET AND OPTICAL IN ONE TESTING SOLUTION

Find out more at EXFO.com/ONESOLUTION

Tackling today’s mobile network challenges

EXFO eBook Fronthaul to Backhaul Field Testing En

Documents

Transcript of EXFO eBook Fronthaul to Backhaul Field Testing En