Today’s networks need to successfully support a vast array of services, everything from simple text messages to services characterized by demanding requirements such as high bandwidth (e.g. 4K video streaming) or very low latency (e.g. e-gaming).
The challenge for mobile operators is that network performance statistics provide very little insight into a customer’s quality of experience across various services. User experience testing is therefore critical to ensure the network is delivering the quality expected by customers for any app or service.
Infovista’s user experience testing portfolio includes solutions for native voice services such as VoNR and VoLTE, OTT voice services, OTT video streaming, and interactive services such as e-gaming, remote drone control and video conferencing. By combining machine learning algorithms with sophisticated traffic modeling, Infovista enables mobile operators to understand the user experience for all these applications and services.
Focus on user experience for better 5G networks
A generic testing approach provides a practical and financially viable solution to validating the performance of all OTT apps
and services. Ongoing standards initiatives have proven that if the generic approach closely mimics the real service/application, then the generic approach delivers trustful and representative results.
Why take a generic approach to testing?
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Voice quality testing for VoNR, VoLTE and OTT voice
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Accurately measure QoE for all native and OTT applications and services
User Experience Testing
If we look at the multitude of OTT apps and the ever-expanding range of devices, it’s simply not practical or financially viable to test every device, every OTT app and every interactive service. Instead, by testing the network against the key parameters of the most demanding and/or most commonly used OTT application/service, we can give operators the confidence they need to not just deliver a network capable of supporting less intensive and/or less common OTT apps and services, but make user experiences promises, safe in the knowledge that their network will deliver.
Dr. Irina Cotanis, Technology Director, Network Testing at Infovista
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Test any OTT application
ETSI compliant KPIs
Commercial off-the-shelf devices
Network-centric testing approach
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Unlike other solutions, Infovista’s user experience testing approach doesn’t require customized OTT applications.
Key benefits
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The solution offers support for industry standard ETSI compliant KPIs.
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The ability to use commercial off-the-shelf (COTS) devices for user experience testing reduces the cost to test and time to market.
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A network-centric and device-agnostic approach provides an accurate and holistic view of network quality while removing the requirement to test every device model.
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The challenge with testing OTT applications today is that parameters change with every release update. How to login or the layout and behavior of the application can change without any notice, and can differ between devices, countries and even networks.
Infovista’s generic OTT (gOTT) solution solves this by providing UI automation on setting up the tests, while the test methodology and KPIs remain generic across all evaluated OTT media applications and in accordance with ETSI specifications. Infovista’s generic framework approach allows operators to quickly test any new OTT media application with consistency and confidence.
OTT media application testing with a generic framework approach
Testing all native and OTT voice and video streaming services and applications is practically impossible due to the large number of mobile OTT applications, multiple different platforms and device-based operating systems, proprietary codecs and clients, and error concealment schemes. Perhaps the most challenging aspect, however, is the level of encryption within these applications, which in many cases is device OS dependent as well as continuously, and even dynamically changing.
To overcome these challenges, Infovista’s innovative sQLEAR algorithm provides QoE modeling and testing of mobile all-IP voice services, including Voice over LTE (VoLTE), Voice over New Radio (VoNR) and OTT voice. The sQLEAR algorithm takes network parameters, standardized voice codec and client information and uses machine learning to provide mobile operators with a view of the true voice quality being delivered through their network. This approach significantly reduces both cost and time to market of new 5G voice services, and cost-efficiently ensures high quality standards for existing VoLTE services are maintained.
The ability of 5G to deliver very high bandwidth and very low latency provides the foundation for a new category of highly interactive services and applications such as e-gaming and remote drone control, for which testing of interactivity becomes critical.
However, these services and applications come in an even larger variety and diversity of genres, flavors and application use cases than their OTT voice/video counterparts. This again necessitates a generic testing approach.
Infovista’s testing approach for interactivity uses generic traffic patterns which emulate both the traffic behavior as well as its adaptability to the network conditions in the same way as a real application would. The generic application server is an adaptive two-way active measurement protocol (TWAMP) server, which has been designed to change the reflected packet patterns according to the network conditions as measured on the device-based client.
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User interactivity testing with generic OTT service/application traffic patterns
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sQLEAR a novel voice quality predictor for 4G and 5G voice services
sQLEAR is a network centric voice QoE algorithm, based on Machine Learning (ML) technology and tailored for drive testing. It’s a cost-efficient optimization solution focusing on real network issues rather than device rooted problems.
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A generic testing is not without its risks and the approach must be carefully thought out. Our generic testing approach provides results that are highly correlated to real live testing and provides operators with the confidence that their network will deliver the expected user experience for even the most challenging applications.
Practical and cost-effective
Highly correlated
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Why take a generic approach to testing?
A generic testing approach provides a practical and financially viable solution to validating the performance of all OTT apps and services. Ongoing standards initiatives have proven that if the generic approach closely mimics the real service/application, then the generic approach delivers trustful and representative results.
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LEARN MORE IN BLOG ARTICLE
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