Viavi Solutions for Small Cells: Pushing the EDGE with Small Cells

Viavi Solutions for Small Cells: Pushing the EDGE with Small Cells
Viavi Solutions
for Small Cells
Pushing the EDGE with small cells
Users expect app availability everywhere, at
any time, on their smartphones, tablets, and
mobile-enabled devices. This demand is driving
mobile service providers to deploy new mobile
infrastructure using small cells that:
• Increase capacity and coverage, ensuring
content and application delivery and high
According to ABI Research, sales of outdoor small cells will grow at a
53.8 percent compound annual growth rate (CAGR) by 2017, with 9.3
million units sold. Outdoor femtocells will be the fastest growing class
of small cells, growing at an 81.5 percent CAGR and reaching 1.5 million
units worth $5.4 billion by 2017.
Small cells provide a small radio footprint that can range from 10
meters within urban and in-building locations to 2 km for a rural
location. In comparison, macrocells have a range of a few miles or
kilometers. With its smaller range, small cells can provide in-building
and outdoor wireless service.
• Offer improved depth of coverage and boost
LTE and 3G services in busy urban areas
• Improve the customer user experience,
increasing typical available data rates
• Easily enable value-added services, particularly
those requiring high-precision location
Small Cells
Offload for
Depth of
Improved user
Small cells encompass femtocells, picocells, and microcells. Smallcell networks can also be realized by means of distributed radio
Why Small Cells?
technology consisting of centralized baseband units and remote
Small cells are vital to 3G data off-loading, and mobile operators see
is that they are centrally managed by mobile operators and network
small cells, rather than macrocells, as the key to efficiently managing
LTE spectrum.
radio heads. A common factor in all these approaches to small cells
equipment manufacturers (NEMs).
Small cells have come a long way in recent years. Initially, they were
used as a way to expand the coverage of a mobile network in remote
locations. However, small cells now increase network capacity in
densely-populated urban areas.
According to Informa Telecoms and Media, 97.5 percent of mobileoperator respondents believe that small cells are key for the future
Source: Small Cell Forum
of mobile networks. In addition, Informa estimates that the number
of small cells deployed overtook the total number of macro cells
between October and November 2012.
Cell radius
On towers or
rooftops 50–200
Antennas are mounted on ground-based masts, rooftops
and other existing structures, at a height that provides a
clear view over the surrounding buildings and terrain.
~10 miles
On street poles
20–30 ft
Short-range base station used for enhancing indooor and/
or outdoor coverage (mall, hotel, transportation hub)
Up to ~1
In-building with
Typically used for indoor applications such as buildings,
airports, malls
Up to 750
In-building with Indoor
single low-power
Small and low power. Typically used for a home, flat, or a
small business
40 ft
2 Viavi Solutions for Small Cells
Small-cell deployment challenges broadly agreed upon by mobile
Small cells also face challenges, particularly outdoors, with respect to
operators include:
backhaul, deployment, and radio performance.
yy Determining how best to manage backhaul delivery to small cells to
yy Backhaul challenges — how to cost-effectively link small cells into the
obtain appropriate performance, cost, and location
core network without compromising performance
yy Dealing with site logistical issues, including placement locations,
aesthetics, power, and planning issues
yy Radio performance — how to ensure traffic is balanced between
small cells and macrocells in a way that maximizes small-cell benefits
yy Obtaining, in actual practice, the overall radio performance that small
cells theoretically deliver
without creating unacceptable interference
yy Deployment issues — how to acquire and use suitable sites at the right
yy Delivering the higher data speeds to support the mobile app explosion
cost and in short timescales
The following diagram depicts major network elements used for
yy Reducing cost-per-bit
indoor and outdoor small cells:
yy Creating differentiation and adding value for the end user
yy Monetizing over-the-top (OTT) applications
yy Retaining and upselling value to customers
Radio network subsystem (RNS)
Small cell
Home node B subsystem (HNS)
Home IP
node B
Packet IMS
3GPP Architecture
Viavi Solutions for Small Cells
Small cells are the best solution to expand capacity and coverage and
meet customer expectations.
Deploying small cells translates into many more network elements
to be commissioned, maintained, and monitored. It is now even more
important to focus on efficient test and monitoring solutions, take
At Viavi, we understand that your business
success depends on maximizing the value you
get from your services.
Online or onsite, day or night, Viavi solutions
give you the control you need to meet your
business goals
control of operating expenses, and minimize time-to-revenue.
Viavi Solutions for Small Cells deliver unmatched visibility to help you
plan, protect, and profit from your deployments.
PLAN to reduce OpEx, get the job done right the first time, dispatch
to fix not to find, and minimize time-to-revenue with solutions that:
yy Provide automated and efficient roll outs of the exponentially scaling
number of network devices
yy Resolve performance, capacity, and functional issues dramatically faster
yy Minimize the cost and time of cell deployment and turn-up
yy Optimize networks to cost-effectively scale traffic capacity and rates
PROTECT network performance and customer quality of experience
(QoE), identify OTT apps that compromise network performance,
identify chatty apps, and prevent traffic surges that cause 3G and LTE
Rollout Planning
Cell-Site Turn-Up
yy Improve network performance and SLA compliance
Field to Lab Correlation
yy Reduce time to identify, isolate, and troubleshoot performance issues
Mobile Backhaul
Mobile Service Assurance
Customer Experience
networks to crash or perform poorly with solutions that:
yy Scale network visibility and monitoring without scaling costs
PROFIT by improving QoE, reducing customer churn, adding highvalue services, and enabling new revenue opportunities with solutions
yy Ensure QoE for VIP customers
yy Monetize small-cell investment
yy Reduce time to revenue
4 Viavi Solutions for Small Cells
Solutions for Rollout Planning
Operators can get the most out of small-cell deployments through
precise placement and by mastering the interaction between
the small cells and the traditional macro layer of the network. To
maximize return on investment, small-cell site locations must be
determined based on actual, localized data-traffic demand.
Customers who are today making use of ariesoGEO-generated
location intelligence as part of their planning process report that
in over 50% of cases, they select a candidate site that will deliver
better performance than one chosen by traditional methods.
This leads directly to a significant improvement in the customer
experience and a greater return on capital investment.
Using geo-located information is also important to reveal data
hot spots and customer experience “black holes.” This intelligently
drives the process of planning small cells and data-offload solutions.
Efficient planning leads directly to a significant improvement in both
the customer experience and the return from capital investments.
As understanding and optimizing wireless networks becomes
increasingly complex, the impact of small cells on the macro layer is
challenging to determine. By revealing the true customer experience
along with detailed RF KPIs for all calls and data sessions, rolloutplanning solutions such as ariesoGEO let operators accurately assess
and optimize small-cell placement.
ariesoGEO locates, stores, and analyzes data from billions of mobile
connection events, giving operators a rich source of intelligence to
help boost network performance and enrich the user experience.
This intelligence transforms the effectiveness of networkperformance engineering; enables customer-centric self-optimizing
networks; creates true understanding of the customer experience;
and, enables the monetization of unique insights.
Solutions for Cell-Site Turn-Up
CellAdvisor analyzers are an ideal small cell site field testing solution
Viavi has a broad portfolio of analyzers and instruments that support
extended operation, and performance with its multifunction
the installation and maintenance of small cells:
yy CellAdvisor
– Cable and Antenna Analyzers
– Base Station Analyzers
that combines portability due to its lightweight design and battery,
The CellAdvisor analyzers have all the necessary functions integrated
to effectively test small cells. This combined functionality includes
spectrum analysis, cable and antenna analysis, power meter,
interference analysis, channel scanner, E1/T1 analysis, and signal
– RF Analyzers
– Signal Analyzers
yy RANAdvisor (Indoor/Outdoor Optimization)
yy Reflection measurements (VSWR, return loss, or smith charts)
– Handheld
yy DTF - Distance to Fault Measurement
– Backpack Solution
yy Cable loss measurement
– Vehicle Based
yy RF power meter with external power sensors
yy Unique Optical power meter with external optical power sensors
Most wireless-network problems occur within the base-station
yy Insertion gain/loss measurement
infrastructure: the antenna system, cables, and connectors. It is
yy RF source verification
essential to have the optimal instrument for properly servicing or
installing cell sites.
yy Demodulation of all wireless technologies up to LTE
yy RF and Modulation analysis presented in a summary screen provided
through the easy to use auto-measure function
yy Spectrum analyzer
yy Interference analyzer
yy Channel scanner
yy CW signal generator
6 Viavi Solutions for Small Cells
A handheld version of the solution is also available on Android phones
The Viavi RANAdvisor platform is the industry’s most flexible,
with the latest models of LTE Samsung Galaxy S3 available.
customizable, and scalable solution for the optimization of wireless
networks and data services. The platform includes a receiver with
up to eight frequency bands and software that can simultaneously
measure and troubleshoot network RF coverage and service delivery
across all existing 2G, 3G, and 4G technologies including WiMAX™, LTE,
and VoIP. Going beyond vehicle based testing, the most demanding
indoor locations are now easily tested via the Viavi backpack—the
lightest and most comfortable indoor solution available as well as
with our handheld solutions based on Android phones.
Outdoor Use Model
Indoor Use Model
Attended drive test with laptop PC and
phone/receiver equipment in moving vehicle
Laptop PC and phone/receiver equipment
in backpack or RANAdvisor Handheld
Base Station Analyzer
trouble ticket,
initial planning,
Optimization process
Drive/walk testing
Post processing
data analysis
Cable and Antenna Analyzer
Solutions for Field-to-Lab Correlation
Viavi solutions collect critical measurements in the field; analyze the
data in the lab; and, deliver actionable intelligence to continuously
improve wireless networks—from wireless silicon to service providers.
To ensure service performance before deployment, these solutions
are used in the lab to model real field environments. QoE and E2E
application-aware testing resolves interoperability and service issues
before deployment. As shown below, these solutions are segmented in
six product lines:
yy Active Test — The Remote Cellular Active Test System (RCATS)
is a patented, end-to-end service-quality monitoring solution
for mobile service providers. Using a distributed architecture of
probes, test controllers, and subscriber identity module (SIM)
servers, the RCATS solution automatically tests a variety of voice,
data, messaging, and billing services from an end-user perspective.
The solution is typically deployed across multiple geographic
locations, providing a consolidated view of service quality and
detailed reports for each individual service and geographical
location. As the leading solution for end-to-end service quality
monitoring for wireless networks, RCATS lets service providers
meet their challenges with real-time, network-wide performance
and availability information, leading to increased service quality,
increased revenue, reduced costs, and improved customer
8 Viavi Solutions for Small Cells
yy CellAdvisor (base station test) — The JD7105B and JD745A Base
Station Analyzers are the optimal test tools for installation and
maintenance of cell sites. The analyzers include all the necessary
functions to effectively test cell sites. Combined functionality
includes spectrum analysis, cable and antenna analysis, power
meters, interference analysis, channel scanners, E1/T1 analysis, and
signal analysis.
yy CapacityAdvisor — Viavi has the industry’s most advanced and
scalable wireless subscriber simulation and test systems for 3G
and LTE technologies. CapacityAdvisor provides advanced load
generation for 3G/4G mobile networks, giving customers an
unmatched ability to test equipment and services under realistic
traffic scenarios in their labs.
yy RANAdvisor — The drive test platform is the industry’s most
flexible, customizable, and scalable solution for the optimization
of wireless networks and data services. The platform includes
a receiver with up to eight frequency bands and software that
can simultaneously measure and troubleshoot network RF
coverage and service delivery across all existing 2G, 3G, and 4G
technologiesincluding WiMAX™, LTE, and VoIP. Going beyond drive
test, the most demanding locations are now easily tested via the
Viavi backpack—the lightest and most comfortable indoor solution
available. A handheld version of the solution is also available for
the HTC Desire (UMTS and CDMA) and HTC Thunderbolt (LTE). The
version also supports multiple Nokia Symbian devices.
–– PacketInsight is a revolutionary, real-time network monitoring
and diagnostics tool designed for the retrieval of historical
data. It offers a unique ability to intelligently capture network
traffic of interest while performing lightning-fast, real-time
post-capture flow analysis of correlated control- and userplane traffic. PacketInsight can be integrated with SART and
yy Protocol Test — protocol test platforms and applications include:
–– SART, the Viavi Signaling Analyzer Real Time, is a highperformance solution for 2G, 2.5G, 3G, and 4G system
verification, troubleshooting, and radio access network (RAN)
optimization. Its intelligent call trace-centric approach enables
distributed call trace, performance measurements, and drilldown problem isolation. It enables complete testing of network
and individual call performance across mobile networks, which
simplifies the resolution of the most complex interoperability
problems in telephony. PacketPortal extends SART capabilities
to let operators see the network the way customers experience
it. PacketPortal provides immediate visibility and reach,
right to the network edge, making it possible for any optical
transceiver in the network to analyze packets. The combined
SART-PacketPortal solution unlocks network blind spots, letting
users quickly troubleshoot call handover issues, performance
problems, dropped calls, packet loss, voice-quality issues,
and network errors before they become significant service
Active test
Base Station Analyzer
Protocol test
Packet capture
Solutions for Mobile Backhaul
Conducting complex tests in short time frames without errors and
return visits is vital for service providers to maintain profitability and
establish a competitive advantage. Viavi products perform the right
tests at the right place at the right time. From network installation and
turn-up to service provisioning, troubleshooting, and maintenance,
Viavi instruments, systems and software help service providers and
technicians quickly roll out small-cells networks, transported services,
and apps.
As shown below, small-cell backhaul can be based on microwave, fiber,
copper, and other technologies. Current Viavi solutions support fiber,
copper/xDSL, and HFC:
Viavi also addresses the importance of a good and solid backhaul
connection to ensure a high-quality end-user experience and avoid
unnecessary bandwidth consumption, for example, that caused by
retransmissions. Our solutions:
yy Improve Ethernet mobile-backhaul activation by over 60% with
automated test and turn-up time
yy Provide scalable, open software solutions including multi-vendor
performance management systems, which can be integrated into
existing third-party operating support systems (OSSs), preserving
existing tool investments
yy Obtain granular performance analytics to monitor backhaul-network
SLAs to detect issues before they affect customers and reduce backhaulnetwork costs
yy Improve network performance, reduce troubleshooting time, and
optimize network performance using industry-leading microprobe
technologies to obtain granular insight into network and service
Viavi is uniquely experienced with full life-cycle management, from
the handset to core, to enable reliable and scalable small-cell networks.
The following sections describe solutions for mobile backhaul:
yy Physical Installation and Troubleshooting — Sub-6 GHz Backhaul,
Qualifying Fiber, Copper, and HFC
yy Ethernet/IP Commissioning and Troubleshooting
yy Ethernet/IP Service Assurance
Viavi has a wide portfolio of products and services to accelerate
backhaul deployment, activation, and turn up. Viavi solutions also
continuously validate mobile-backhaul SLAs and prioritize issues for
business efficiency.
10 Viavi Solutions for Small Cells
Physical Installation and
Troubleshooting— Sub-6 GHz Backhaul
Small-cell backhaul is a major challenge because wired backhaul
Viavi CellAdvisor supports sub-6 GHz backhaul testing that is
applicable for any implementation, P-P or P-MP, or LOS and NLOS:
yy Channel power
availability is limited and traditional microwave and millimeter-wave
yy Occupied bandwidth
line of site (LoS) wireless backhaul cannot guarantee availability to
yy Spectrum emission mask
street-level small-cell installations.
Non line of sight (NLoS) and near line of site (NrLoS) wireless
backhaul using sub-6 GHz bands are promising candidates for
yy Spurious emissions
yy Adjacent channel power
ubiquitous small-cell backhaul. However, the spectrum below 6 GHz
is limited compared to higher frequencies and it is also more sensitive
to interference.
Sub-6 GHz links support two types of architecture:
Sub-6 GHz
Capacity (full duplex)
50-100 Mbps
50-100 Mbps
Spectrum generally
Unlicensed but
licensed options
Unlicensed but
licensed options
Spectrum cost
Free when unlicensed,
moderate to high
when licensed
Free when unlicensed, moderate
to high
when licensed
Line-of-Sight needed
Test needs
LOS: Power and
frequency testing
NLOS: Power, frequency, and
modulation testing
LOS: Power and
frequency testing
NLOS: Power, frequency, and
modulation testing
Typical latency
3 to 8 ms (depending
on LOS)
3 to 8 ms (depending
on LOS)
Installation cost
Base Station Analyzer
Physical Installation and Troubleshooting—
Qualifying Fiber
The first consideration to ensure reliable small-cell service delivery
starts with the correct qualification of fiber-plant cabling and
terminals. A series of measurements are performed to ensure fiber
cable integrity and to analyze the ability of the cable and equipment
to function at peak performance, assessing its ability to survive
network aging and environmental affects.
OTDR Measurements — Fiber Acceptance and Maintenance
During network construction, fiber may be rolled out in a variety of
ways: in ducts, direct-buried, or aerial-strewn in elevated locations.
The location of the cable often limits the ability to determine
installation quality or to see any direct impairment on the cable itself.
The T-BERD/MTS-2000 is an OTDR that characterizes the quality of
cable, splices, and terminations and measures fiber loss, locates events
and impairments, measures the impact (loss) of each, and provides
the distance to the event. SmartLink Mapper (SLM) is a fieldinstallable software application that removes any complexity from
yy Certify fiber connector end-face quality for all terminal components and
OTDR testing and results interpretation. Using advanced software,
SLM analyzes the passive elements, impairments, and faults on the
optical fiber link and displays each of these in a simple icon-based
yy Fiber acceptance testing using an optical time domain reflectometer
map view that is understandable at any skill level.
(OTDR) to measure fiber length, signal loss, connectors, and splice joints
during construction
yy Verify optical power levels at terminals: insertion loss and optical return
loss and channel loss during terminal provisioning
yy Fiber monitoring analysis, monitoring of network performance, and SLA
Fiber Inspection — Connector Certification
Dirty connectors are the number-one cause for troubleshooting in
optical networks. Microscopic particles of dirt can create enough signal
loss and back reflection to cause significant downtime and network
damage. Typically, they create random bit errors that make them the
most difficult items to troubleshoot.
The increasing bandwidth requirements in today’s mobile networks
leave little room for errors caused by dirt.
Using the Viavi P5000i, the world’s most versatile and reliable analysis
microscope, you can easily overcome these problems and adopt the
best practices when handling fiber. The P5000i microscope is used to
certify connector end-face quality in accordance with IEC standards or
the customer’s specification. This certification guarantees the link will
perform at the highest level possible.
P5000i connector certification
12 Viavi Solutions for Small Cells
Optical Power Measurements
Fiber-acceptance testing often generates a report to prove the
During network provisioning and troubleshooting, a power
quality of work, and the performance of the network, and establish a
meter ensures the performance of network devices by measuring
transmitted and received optical power at end terminals. It also
confirms that the completed cable subsystem is suitable for the
intended transmission system between the serving terminals. A
reference birth certificate for the system installation. Birth certificates
can be centrally stored and securely accessed from anywhere in the
world via the Viavi StrataSync cloud-enabled asset, configuration, and
test-data management platform.
SmartClass Fiber OLP-82 is an optical handheld system that integrates
a power meter with pass/fail fiber inspection in a single, portable
device that can verify receipt of the correct range of power (not
too little, not too much), ensuring that equipment functions at
peak performance. Some transmission devices are sensitive to back
reflection and an optical return loss (ORL) meter ensures that return
power is within system specifications. Where backhaul networks
integrate a CWDM or DWDM system, an optical channel checker
(OCC) scans the xWDM and automatically records all channels with
the wavelength and the related power level.
P5000i digital pass/fail inspect
SmartClass fiber optical
power meter
Performing a power-level measurement using a
SmartClass Fiber OLP-82
Physical Installation and Troubleshooting —
Qualifying Copper and XDSL
Technicians worldwide use the HST-3000 Handheld Services Tester
Because small cells are typically located in dense urban environments,
test tool, combining compete copper qualification tests, advanced
they let wireline operators take advantage of their remote DSLAMs
TDR, and RFL. The HST-3000 also performs wideband noise and
to create new revenue streams. However, maximizing existing
impulse noise analysis for fault-finding. It emulates CPE devices
infrastructures also requires qualifying the copper access plant to carry
to perform xDSL (for example, ADSL2+, VDSL2) testing combined
high-speed small-cell services.
with application layer IP video, IP class of service, and VoIP phone-
yy Planners must test for foreign voltage, leakage resistance, capacitive
or the SmartClass Triple Play (TPS) to carry out these important
tests. The HST-3000 is the industry’s most versatile multilayer field
emulation testing—all in a single, modular, portable platform.
and longitudinal balance, loop-length wideband noise, and wideband
impulse noise
yy Identification of wide band noise and analysis of pair balance is
Applications (web, IPTV, VoD, VoIP…)
increasingly important to facilitate higher bandwidth through the use of
wider frequency spectrums
yy Technicians need to qualify copper pairs and fix chronic impairments
that would otherwise cause repeat dispatches. They must fix it right the
first time.
yy Backhaul SLAs are tighter than consumer-grade data services
14 Viavi Solutions for Small Cells
SmartClass TPS
Physical Installation and Troubleshooting —
Qualifying HFC
Because small cells are deployed in dense urban environments, cable
TV operators are well positioned to take advantage of their existing
HFC network to create new revenue streams. However, maximizing
the utilization of these infrastructures also means qualifying the RF
portion of the network for high-speed data services.
yy Operators must verify HFC alignment, signal (QAM) quality, upstream
noise and ingress levels, plus DOCSIS channel bonding and throughput
MACTrak live troubleshooting
yy To cover SLA requirements, a close watch must be kept on HFC node RF
performance including downstream and upstream carrier health
yy Tools must proactively identify and locate network issues as well as
certify any install or repair immediately to eliminate OpEx-consuming
Viavi has a wide range of test-and-measurement products and
services with signature features including advanced functionality,
reliability, portability, ease-of-use, and value. Superior customer service
and strong support adds value by helping technicians get maximum
use from their Viavi equipment.
yy Coaxial RF performance and sweep testing — SDA 5500, DSAM 6300
yy System monitoring — PathTrak return-path monitoring, PathTrak video
DSAM field-view QAM
Ethernet/IP Commissioning and
Viavi Handheld Solutions for Ethernet backhaul
Advanced Viavi solutions for 10/100 Ethernet and Gigabit Ethernet
testing support RFC-2544 traffic testing as well as ITU-T Y.1564
All of this is done using automated test sequences that can guide
technicians at all skill levels though the test, ensuring fastest possible
operation and consistently reducing the risk of human errors. The
tester produces clear pass/fail results based on the SLA criteria and
documents the result in auditable test reports for clean handoffs
between different groups or operators.
service-activation testing to verify structured video, voice, and data
services. The Viavi solutions offer flexibility to perform across various
network infrastructures and tunneling technologies (VLAN Q-in-Q
and MPLS) to quickly analyze jitter, throughput, and latency to assess
QoS. Revolutionary TrueSpeed™ (RFC-6349) automated TCP testing
validates TCP performance to end customers to accurately validate
SLA performance. These easy-to-use tools are application specific to
help any field technician quickly turn-up and test Ethernet and IP
As an example, the T-BERD®/MTS 5800 is the industry’s smallest 10
G handheld instrument that supports testing throughout the entire
Ethernet service life cycle including installation, troubleshooting, and
maintenance. It addresses the challenges of carrier Ethernet evolution.
The T-BERD/MTS 5800 ensures successful mobile backhaul transitions
by validating new Ethernet synchronization deployments (1588v2 and
SyncE) that guarantee successful mobile handoff between cell sites,
thereby avoiding service degradation.
Enhanced RFC
T-BERD/MTS 5800 J-Complete automated tool suite
Y.1564 SAMComplete
16 Viavi Solutions for Small Cells
Service Assurance
The JMEP SFProbe™, the latest addition to the PacketPortal family, is a
Small Cell Backhaul Assurance Solution
Both are based on industry-standard small form factor pluggable (SFP)
The Viavi Small-Cell Backhaul Assurance solution addresses the
gigabit Ethernet transceivers. PacketPortal SFProbes meet or exceed
microprobe complementing the existing Intelligent Visibility SFProbe.
standards and can be deployed inline in existing network equipment
complete life cycle of challenges faced by mobile network operators,
starting with backhaul service activation, performance assurance and
optimization, and monitoring. Viavi offers operators a comprehensive
suite of products and software applications to automate backhaul
such as NodeB/eNodeB and cell-site routers. PacketPortal-distributed
SFProbes deployed at the network edge are centrally managed and
controlled by a software platform, supplying centralized tools and
network activation, centrally troubleshoot, and monitor backhaul
software applications.
performance to service level agreements.
The JMEP SFProbe addresses the unique requirements for activating
It eliminates the need for costly and impractical external
and monitoring next-generation Ethernet services, including not only
instrumentation providing significant space and power savings,
and dramatically reduced total-cost-of-ownership and helps mobile
operators accelerate rollout and improve time to revenue and
service while addressing the unique backhaul networking challenges
introduced by small cells. The Viavi solution specifically automates
the backhaul test and solves the network-visibility challenges at
aggregation points in the network, minimizing test time, eliminating
field dispatches, and obtaining key network performance indicators
small-cell mobile backhaul but other markets using Ethernet services
such as business services. The JMEP SFProbe supports industry
standards such as RFC-2544, Y.1564, and Y.1731 test methodologies.
When combined together with Intelligent Visibility SFProbes,
PacketPortal provides a highly-scalable approach to overcome the
complex service activation, performance monitoring and assurance,
and network troubleshooting/segmentation that new multi-vendor
hub-and-spoke topologies introduce.
including one-way latency without having to re-architect their
networks or deploy additional equipment.
Small cell
Small cell #1
Small cell #2
Mobile switching center
PacketPortal JMEP SFProbe
Small cell #3
PacketPortal IV SFProbe
Together with NetComplete EtherAssure service-aware OSS and the
rapidly segment the network, demarcating the location of quality
QT-600 centralized test probe, the Small Cell Backhaul Assurance
issues between the network of the mobile carrier and the backhaul
solution delivers the necessary applications to ensure backhaul
network, and they monitor both service and network performance
services meet the most stringent performance requirements of the
that includes alerting the provider of SLA threshold violations.
industry. These applications let backhaul providers verify whether
circuits are performing in accordance with SLAs at turn-up. They
Loopback and test
Small cell #1
Segment, timestamp
Small cell #2
PacketPortal JMEP SFProbe
Small cell #3
18 Viavi Solutions for Small Cells
PacketPortal IV SFProbe
Small cell #1
Small cell #2
Small cell #3
Solutions for Customer Experience
When the “Voice of the Customer” is not enough, providers need
all-around insight into a customer’s experience and usage. The current
mobile network environment is experiencing a ramp in the use of
smartphones, downloaded applications, and OTT services, especially
video. Likewise, with new mobile-network technologies such as
LTE offering greater service bandwidths and multiple QoS levels,
the opportunities for new mobile revenue sources have never been
greater. However, there are downsides to this environment where
customer service usage and QoE become individualistic and highly
impacted by the choice of smartphone and downloaded applications.
Also, service volumes are growing almost exponentially while the
revenue-per-data-unit carried is dropping. To maintain profitability,
service providers must find new or incremental revenue sources and/
or reduce operational costs.
InTouch functional diagram
Viavi is a long-term leading supplier of assurance and customer
experience management (CEM) solutions, providing real-time
monitoring, troubleshooting, and reporting for 2G, 3G, and LTE
Using collected network and reference data, InTouch scores every
networks and services. In support of the evolving needs of mobile-
service transaction (call, SMS, or data session) for QoE, providing
service providers, Viavi recently introduced the following innovative
MOS-like scoring from 1 through 5. InTouch then stores this QoE score
solutions addressing the growing importance of customer usage and
along with the transaction usage information and provides usage
experience insight to:
and QoE reports, both individual customer and aggregated, based on
yy Optimize marketing and customer care with real-time granular
yy Collect and correlate meaningful intelligence across the end-to-end
the stored data. InTouch offers hundreds of pre-defined reports, but
users can also define their own reports to provide custom views and
interpretations of data specific to their interests.
yy Prioritize data analytics by customer value and priority
yy Maximize service quality through application-aware performance
assurance, real-time troubleshooting, and granular customer QoE insight
InTouch is a Viavi monitoring and reporting application focused on
customer-experience and usage insight.
Sample InTouch QoE scoring
InTouch delivers subscriber-level usage and experience data to
mobile-service providers, enabling more effective ways to manage
their networks, services, and customers. Using network-signaling and
user-plane data from Viavi assurance probes, the InTouch application
provides deep insight into mobile usage and experience with profiling
by individual customer, handset, cell location, and core network
element. In this way, the solution provides key subscriber-level insight.
InTouch not only improves customer satisfaction and retention, but
also lets providers make operational management decisions with the
customer in mind.
InTouch GIS Map
Solutions for Mobile Service Assurance
With a Viavi assurance solution delivering an integrated suite
Viavi mobile data assurance solutions monitor and troubleshoot
more than three clicks away from diagnosing problems. You get
GPRS, UMTS, CDMA 2K, and LTE networks (including interoperability)
and are a key tool for monetizing data bandwidth with unmatched
business intelligence (BI) functionality.
of monitoring and troubleshooting applications, you are never
unparalleled scalability, up to 80 percent reduced problem-resolution
time, and the ability to cost effectively re-allocate resources. Your
customers win with high-quality and consistent service; your
company wins with substantial savings and more revenue; and, your
employees win with greater job satisfaction.
The Viavi mobile assurance portfolio includes accessLTE to assure LTE
mobile networks and services.
Converged assurance solution
20 Viavi Solutions for Small Cells
Deploying small-cell services brings vast complexities and challenges
to network planning, testing, maintenance, service assurance, and
CEM. A comprehensive, application-aware test and service-assurance
strategy that covers installation, provisioning, and management is
needed to address these challenges. Viavi is a single source for all
these solutions. With complete ability to verify and troubleshoot the
physical plant, the network circuit, and the full range of services and
apps, Viavi competitive advantages are clear.
Small-cell challenges include:
yy Lab pre-deployment testing
yy Turn-up and deployment
yy Backhaul quality
yy End-to-end assurance
Viavi is building on its extensive mobile experience and is partnering
with NEMs to help service providers manage the deployment
and OpEx costs of small cells, as well as time-to-revenue while
maintaining service quality. From pre-deployment planning through
turn-up and assurance, service providers and NEMs can ensure small
cells deliver the capacity and coverage needed to enhance the overall
end-customer experience. Service providers and NEMs can be sure
the physical transport of small cells, as well as content-aware realtime customer intelligence, can be leveraged across a range of Viavi
customer and partner applications.
Benefits include:
yy Minimize the cost of small-cell deployments
yy Minimize time-to-revenue
yy Measure user experience before the customer does
yy Simple one-touch modes combine with engineering modes
yy Integrated solution set from silicon to apps, RAN to core
yy Content aware for application analysis
yy One device verifies RF and backhaul
yy One-touch service verification/service assurance
Products and Solutions
Rollout Planning
CellAdvisor Cable and Antenna Analyzers
CellAdvisor Base Station Analyzers
CellAdvisor RF Analyzers
Cell-Site Turn-Up
CellAdvisor Signal Analyzers
RANAdvisor solutions
Field-to-Lab Correlation
Active test (RCATS)
CellAdvisor Base Station Analyzers
CapacityAdvisor solutions
RANAdvisor solutions
Signaling Analyzer (SART) — wireless protocol
All technologies
All technologies
Mobile Backhaul
DSAM Digital Service Activation Meter
Fiber inspection and test
HST-3000 Handheld Services Tester
PathTrak™ return path monitoring system
SmartClass™ testers
HFC, RF, Ethernet, IP
Outdoor/indoor fiber
Outdoor/indoor copper, VDSL,
Ethernet, IP
All technologies (fiber, copper,
VDSL, Ethernet)
Metro/Business Ethernet services test tools
10 Mbps/100 Mbps/1 G Ethernet
OTDR, FTTx, fiber characterization, Ethernet, BERT, 40 GE, OTN
Mobile Service Assurance Solutions
NetComplete® EtherAssure
Ethernet, signaling
Service-usage Ethernet,
Ethernet, signaling
Service-usage Ethernet,
Mobile Service Assurance
22 Viavi Solutions for Small Cells
Viavi Services
Consulting Services — Small-cell deployments create the need
for more equipment, more manpower, more expertise, and unbiased
test results. Support your current workforce with experienced test
engineers or automate your method of procedures (MOPs) to reduce
testing time and testing complications.
Education Services — Renewed education is a must-have for the
rapidly changing environment created by small-cell deployments.
The Viavi education services team provides training and
development on new method of procedures (MOPs) in addition to
hands-on and virtual training on new technologies, testing practices,
and products.
Test-Equipment Management — Solutions spanning calibration
and repair to detailed test equipment tracking let installers,
providers, and equipment manufacturers achieve the highest return
on investment by increasing utilization and internal efficiency in
tracking equipment.
Contact Us
+1 844 GO VIAVI
(+1 844 468 4284)
To reach the Viavi office nearest you,
© 2015 Viavi Solutions, Inc.
Product specifications and descriptions in this
document are subject to change without notice.
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