& cplSiteName &

Integrated Analytics Make or Break VoLTE Rollouts

Vivek Vadakkuppattu
7/14/2014
50%
50%

How does one ensure the smooth rollout of new, revolutionary, disruptive technologies such as VoLTE, especially when subscribers have high expectations for performance and reliability that evolved out of their experience with mature, legacy technologies?

Start with an old cliché: You can only manage what you can measure. However, most old clichés are grounded in truth and comprehensive, intensive, end-to-end measurement is the foundation for successful technology deployments. Reliable and repeatable performance test capabilities ensure that issues are caught and addressed before new technology is rolled out to end customers.

But for many reasons, this is not easy. As one example, during a VoLTE rollout, there are multiple new interactions which must be managed, including interactions between networks, devices, and the environment. Resolving problems to the appropriate domain and identifying root causes to the device, network, or interaction consumes considerable amounts of time and resources. By definition, innovative technologies are in their infancy and one should therefore expect that new issues appear frequently. Debugging can be quite complicated, often requiring systems engineering support which may create additional bottlenecks during rollout.

A new perspective on test is required. Two case studies highlight the value of device-network analytics. In both cases, the analysis focused on the device-network interaction which provided direct insight into the root cause of the issue.

Case Study 1: Video stalling issue

  • Test need: Pre-launch testing a new smartphone
  • Test application: Streaming YouTube
  • Symptom: Device under test (DUT) displayed inadequate performance when compared to the reference device.
  • Results: An analysis of device and network logs showed that not only was the DUT's YouTube performance worse, it was also signaling the network more. So, in essence, the device was delivering poor user performance and loading the network, i.e. the worst scenario for an operator. The TCP/IP settings on the DUT weren't optimal (for YouTube) thereby causing a TCP reset and a network reconnection.

Case Study 2: Chatty device

  • Test need: Pre-launch test of a new smartphone
  • Test requirements: Networks in which the device was being tested reported increased load on the network or network congestion though there were no signs at a device level
  • Symptoms: The field team was not able to see an issue since the throughput of the DUT was comparable to the throughput of the reference device
  • Results: Analysis of device and network logs showed immediately that while the two devices had similar (user) throughput, the DUT consumed twice as much network resource as the reference device to achieve the same throughput, thereby putting greater load on the network.

Clearly, isolated testing of either devices or networks is no longer sufficient to identify and troubleshoot performance issues. This problem will only grow as networks continue to become more complex. Rollouts of advanced features such as VoLTE will only go smoothly if the interaction of the device and networks while running the application is analyzed. Successful rollouts will require effective tools and integrated analytics for device network interaction will be essential.

— Vivek Vadakkuppattu, Director & Head, Analytics Business Unit, Azimuth Systems Inc.

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
More Blogs from Column
In the second part of a two-part series, Paul Robinson explains why the move to live IP production is an opportunity to significantly change the viewing experience, and more importantly, open up new revenue and business opportunities.
One thing is certain: the coming technology changes will affect everyone to varying degrees, including content providers, service providers and equipment makers.
It's time for our industry to call BS on the US government's position on Chinese telco manufacturers.
There are important considerations for companies to keep in mind when moving Domain Name System (DNS) infrastructure to an NFV implementation.
The lies, damned lies and statistics of real open access network operations.
From The Founder
Light Reading sits down at CES with the head of Cisco's service provider video business, Conrad Clemson, to discuss how NFV and cloud security relate to video, the challenge of managing 4K/8K traffic, the global expansion of Netflix and virtual reality.
Flash Poll
Live Streaming Video
CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
LRTV Huawei Video Resource Center
TeliaSonera: Striving for Independence

2|12|16   |     |   (0) comments


Peter Lagergren discusses the importance of decoupling the network from services.
LRTV Huawei Video Resource Center
Ken Wang on U-vMOS

2|12|16   |     |   (0) comments


Ken Wang discusses how video will take of the traffic on carrier networks and become a basic service to provide to end users.
LRTV Documentaries
All Change in Video

2|11|16   |   33:12   |   (1) comment


At this moderated panel at 2020 Vision in Dublin, Alan Breznick, Cable/Video Practice Leader of Light Reading, sits down with Jeff Finkelstein, director of network architecture at Cox Communications, to discuss the rapidly changing video market.
LRTV Custom TV
Hosting in Ireland, Past & Present

2|10|16   |   16:07   |   (0) comments


Garry Connolly, president of Host in Ireland, presents the keynote at Light Reading's 2020 Vision Executive Summit in Dublin.
Women in Comms Introduction Videos
What's Hot in Mobile Commerce?

2|10|16   |   12:18   |   (1) comment


Claire Maslen, financial services relationship manager at the GSMA, talks about the development of the digital commerce sector and the types of relationships that mobile operators are developing to further their m-commerce strategies.
LRTV Documentaries
EANTC Tests Nokia IP Routing & Mobile Gateway VNFs for Real World Deployment

2|9|16   |   5:08   |   (1) comment


Nokia obtained validation of its virtualized router and virtualized mobile gateway capabilities through rigorous testing performed by EANTC. The results set a new industry benchmark for outstanding performance, scalability, resiliency and manageability. Nokia VNFs are ready for telco cloud deployment, so that service providers can accelerate mobile, business and ...
Between the CEOs
CEO Chat With Level 3's Jack Waters

2|8|16   |   26:15   |   (1) comment


Light Reading CEO and founder Steve Saunders sits down with Level 3 Communications' CTO Jack Waters to discuss hot topics like virtualization, 4K and the future of telecom...
LRTV Custom TV
The Composable Telco

2|8|16   |   24:46   |   (0) comments


Heavy Reading's Principal Analyst Caroline Chappell presents the keynote at Light Reading's 2020 Vision Executive Summit in Dublin.
LRTV Custom TV
Join Us at the Digital Operations Transformation Summit

2|4|16   |   03:52   |   (0) comments


The Digital Operations Transformation Summit on February 21, 2016 at the Crowne Plaza Barcelona Fira Centre will bring together 50 senior executives to engage in a unique debate on the opportunities and challenges presented by the transformative evolving digital landscape. RSVP now at events@lightreading.com.
LRTV Custom TV
Making the Test: ADVA Ensemble Connector vs. Open vSwitch

2|4|16   |   01:28   |   (0) comments


Light Reading, in partnership with EANTC, recently tested ADVA's Ensemble Connector, which replaces open vSwitch and offers carrier-grade capability and interoperability. The test results strengthen ADVA's credibility as a provider in the virtualization space.
LRTV Custom TV
Bridging the Gap Between PoCs & Deployment in NFV

2|4|16   |   31:50   |   (0) comments


Charlie Ashton of Wind River presents the keynote at Light Reading's 2020 Vision executive summit in Dublin.
Between the CEOs
CEO Chat With Mike Aquino

2|3|16   |   17:34   |   (0) comments


The former CEO of Overture Networks, Mike Aquino, discusses why truly open virtualization solutions provide service providers with the greatest choice.
Upcoming Live Events
March 10, 2016, The Cable Center, Denver, CO
April 5, 2016, The Ritz Carlton, Charlotte, NC
May 23, 2016, Austin, TX
May 24-25, 2016, Austin Convention Center, Austin, TX
All Upcoming Live Events
Hot Topics
Yahoo & Verizon Sitting in a Tree...
Brian Santo, Senior editor, Test & Measurement / Components, Light Reading, 2/8/2016
Vodafone: Flexible Work Policies Boost Profits
Sarah Thomas, Editorial Operations Director, 2/8/2016
AT&T Lights Fire Under 5G, Plans 2016 Trials
Iain Morris, News Editor, 2/12/2016
Andreessen Facepalms on Facebook Free Basics
Mitch Wagner, West Coast Bureau Chief, Light Reading, 2/10/2016
It's Time to Integrate OTT Video
Alan Breznick, Cable/Video Practice Leader, 2/8/2016
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
Light Reading CEO and founder Steve Saunders sits down with Level 3 Communications' CTO Jack Waters to discuss hot topics like virtualization, 4K and the future of telecom...
The former CEO of Overture Networks, Mike Aquino, discusses why truly open virtualization solutions provide service providers with the greatest choice.
Live Digital Audio

Broadband speeds are ramping up across Europe as the continent, at its own pace, follows North America towards a gigabit society. But there are many steps to take on the road to gigabit broadband availability and a number of technology options that can meet the various requirements of Europe’s high-speed fixed broadband network operators. During this radio show we will look at some of the catalysts for broadband network investments and examine the menu of technology options on offer, including vectoring and G.fast for copper plant evolution and the various deployment possibilities for FTTH/B.