Light Reading

Integrated Analytics Make or Break VoLTE Rollouts

Vivek Vadakkuppattu

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
Adding virtualized local content delivery capabilities to broadband networks would bring content closer to consumers and boost OTT quality.
As OTT video traffic soars, CSPs can use new probing tools to measure and improve their data customers' quality of experience more effectively.
The edge router's days are numbered, argues Scott Sumner.
Don't panic – the platform isn't burning but is evolving quickly through open source, writes OPNFV director Heather Kirksey.
Cisco has once again set the bar and challenged the New IP networking sector by opening its doors and welcoming independent testing, something more vendors should be doing.
From The Founder
Steve Saunders provides an overview of white box networking and introduces a new "slim line" version of the OSI 7-layer model.
Flash Poll
Live Streaming Video
CLOUD / MANAGED SERVICES: Prepping Ethernet for the Cloud
Moderator: Ray LeMaistre Panelists: Jeremy Bye, Leonard Sheahan
Between the CEOs
Centec on Ethernet Switching

11|26|15   |   09:58   |   (0) comments

Centec CEO James Sun talks to Steve Saunders about Ethernet switching and the white box revolution.
LRTV Custom TV
Delivering Service Agility in the Virtualization Era

11|25|15   |   5.41   |   (0) comments

Interview with Massimo Fatato, WW OSS Business Lead, Hewlett Packard Enterprise.
Wagner’s Ring
How Might Open Source Fail?

11|24|15   |     |   (10) comments

Open source, SDN, and NFV are looking inevitable – but performance, standards proliferation and regulatory capture could derail the movement.
LRTV Custom TV
NFV Lifecycle Orchestration – a Fresh Vision for Telco

11|23|15   |   6.40   |   (0) comments

Simon Osborne, CTO Comptel, and Heavy Reading's Caroline Chappell reveal the business impacts of new SDN and NFV, and what the term service orchestration actually means. Together they define Lifecycle Service Orchestration and how the virtualized future will look for telecoms operators.
Between the CEOs
Cisco's Virtual Role in Saudi

11|20|15   |   12:15   |   (2) comments

Light Reading founder and CEO Steve Saunders talks with Zayan Sadek, Regional Manager at Cisco Systems, about the competitive communications services market and advance of virtualization in Saudi Arabia.
LRTV Huawei Video Resource Center
Huawei Leads With Kubernetes for Cloud PaaS

11|19|15   |   08:26   |   (0) comments

Huawei is looking to Kubernetes as a key tool for building robust open source technologies for customers and partners, said Ying Xiong, chief architect of cloud platform at Huawei, in an interview with Light Reading West Coast Bureau Chief Mitch Wagner at the recent Kubecon conference.
Women in Comms Introduction Videos
WiC in London: The Highlight Reel

11|19|15   |   5:33   |   (1) comment

NetCracker's Mervat El Dabae headlines an inspiring morning in London with help from leading women from Vodafone, TalkTalk, Hyperoptics and Ciena.
LRTV Documentaries
Why Saudi's So Hot for New Tech

11|19|15   |   05:07   |   (0) comments

Light Reading's Steve Saunders reports from Saudi Arabia, a hyper-competitive market desperate to embrace the next generation of communications technologies and services.
LRTV Custom TV
Why Data Models Deliver More Value Than Information Models

11|19|15   |   5.08   |   (0) comments

Stefan Vallin argues that more automation is needed to manage end-to-end services and the hybrid networks they run on, and that data models are key to achieving this.
Telecom Innovators Video Showcase
SDN Management & Orchestration in the WAN

11|17|15   |   7.20   |   (0) comments

Carol Wilson and Packet Design CTO Cengiz Alaettinoglu discuss CSPs' SDN service delivery and assurance requirements. Learn about a modular approach to building automated control, orchestration and management functions for the WAN that are policy- and analytics-driven.
LRTV Custom TV
Flash Networks: Optimizing for Radio Spectral Efficiency

11|17|15   |   3:34   |   (0) comments

Today most optimization vendors only focus on optimizing voice or data. Ofer Gottfried, Flash Networks' CTO, shows how improving data throughput and maximizing spectral efficiency reduces capital and operating expenses while also providing a platform for user engagement.
LRTV Custom TV
Making Pay-TV User Experiences Millennial-Friendly

11|16|15   |   6:42   |   (0) comments

The unique challenge of reaching and engaging Millennials is driving pay-TV video experience transformation that can include higher quality UIs, viewing of multiple content streams at once and seamless transitions between handheld devices and the television.
Allot MobileTrends Report H2/2015 reveals how daily online behavior can be used to discover smarter ways to profile customers and propose valuable, real-time offers to them.
Hot Topics
Samsung to Sell Wireless Networking Unit?
Dan Jones, Mobile Editor, 11/23/2015
Samsung: No Sale of Wireless Unit
Dan Jones, Mobile Editor, 11/25/2015
How Might Open Source Fail?
Mitch Wagner, West Coast Bureau Chief, Light Reading, 11/24/2015
Sprint to Get $1.2B From New Leasing Venture
Dan Jones, Mobile Editor, 11/23/2015
Networking Shines in HP's Gloomy Final Earnings
Mitch Wagner, West Coast Bureau Chief, Light Reading, 11/25/2015
Like Us on Facebook
Twitter Feed
December 15, 2015
Virtualizing Cable Services
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
Centec CEO James Sun talks to Steve Saunders about Ethernet switching and the white box revolution.
Light Reading founder and CEO Steve Saunders talks with Zayan Sadek, Regional Manager at Cisco Systems, about the competitive communications services market and advance of virtualization in Saudi Arabia.
Cats with Phones
Can't Find the Phone on Thanksgiving? Click Here
Check under the cat! (hint: bottom right)
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 for copper plant evolution and the various deployment possibilities for FTTH/B.