QoS and QoE performance testing based on harmonized mobile network methodologies

Maximize QoS and QoE and get ahead of competition

Delivering consistent, high-quality mobile connectivity is more critical than ever. Mobile network operators, regulators, and service providers face the challenge of ensuring both technical performance (Quality of Service, QoS) and the actual experience perceived by users (Quality of Experience, QoE).

Our approach combines both perspectives — from deep network-level metrics to real-world user satisfaction — to provide a comprehensive view of mobile network quality. By leveraging harmonized and standardized test methodologies, we help ensure accurate, reproducible results that reflect true end-user experiences.

Whether you are optimizing your network, validating a rollout, or benchmarking against industry standards, our solutions provide the performance insights you need to deliver the experience your users expect — and deserve.

The benefits of a harmonized test methodology

Numerous studies confirm: mobile network quality — and in particular, quality of experience (QoE) — has a direct impact on user satisfaction and business success. Harmonized test methodologies offer a fully transparent, objective, and technology- and vendor-independent basis for evaluating and comparing QoE across networks — advantages that proprietary approaches simply do not provide. Such standardized assessments empower mobile network operators and regulators to gain actionable insights and ensure that network investments lead to measurable improvements in user experience and competitive performance.

As pioneers in QoE-centric testing, we have played a leading role in shaping international standards from the earliest days of cellular technology. Our applied research teams have actively contributed to the development of key methodologies and hold intellectual property in multiple test standards now widely licensed and adopted across the industry. We remain committed to transparent, standardized testing — to advance QoS and QoE for the benefit of the entire mobile ecosystem.

Quality of Service (QoS) network performance testing

Quality of Service (QoS) testing focuses on the technical performance of the mobile network infrastructure — from radio access to core network elements. It measures key performance indicators (KPIs) such as latency, throughput, packet loss, availability, and coverage. These parameters directly influence the network’s ability to reliably deliver services and meet contractual performance requirements.

Our solutions enable mobile network operators and regulators to systematically assess QoS under real-world conditions, identify bottlenecks, verify service-level compliance, and ensure a consistent baseline for performance benchmarking. QoS testing is essential to maintaining a high-performing, robust network and serves as the foundation for improving overall Quality of Experience (QoE).

Quality of Experience (QoE) testing: Understanding the end-user experience

While QoS testing assesses technical performance, Quality of Experience (QoE) testing shifts the focus to what truly matters — how users perceive the quality of mobile services. It reflects the real-world experience across a wide range of services and applications, helping mobile network operators and regulators understand how technical parameters translate into user satisfaction.QoE testing uses device-based measurements and sophisticated quality prediction models to assess perceived quality from the end-user’s perspective. This enables targeted optimization and ensures that improvements to the network truly benefit the subscriber.

Service quality testing

Voice and video services remain essential for mobile users — and highly sensitive to network impairments. Our service quality testing solutions evaluate call quality and video playback experience using industry-standard models such as POLQA for voice and ITU-T J.343.1 for video.

By simulating real usage scenarios with smartphone-based probes and applying psychoacoustic and psychovisual models, we deliver accurate, repeatable assessments of service quality. These insights help operators and regulators identify weaknesses, benchmark against competition, and ensure compliance with regulatory expectations.

Read more on our expertise pages:

App testing

Today’s mobile subscribers expect instant and smooth performance across all applications — from browsing and messaging to video streaming and social media. App performance testing evaluates responsiveness, loading times, and stability of commonly used apps in real-world conditions.

Our testing solutions enable benchmarking across networks, time, and geography, providing visibility into the factors affecting user satisfaction.

By identifying performance gaps, operators can prioritize optimizations that directly improve daily user experience and competitive positioning.

QoS/QoE led testing across entire network lifecycle

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Adopt QoS/QoE‑led testing across the entire mobile network lifecycle

QoS and QoE: A Unified Perspective — From deep‑layer RF performance to app‑level responsiveness, we provide a complete, actionable view of network quality.

Drawing on Trusted Methodologies such as ETSI TR 103 559, ITU-T G.1051, ITU T J.343.1 and POLQA, our test solutions ensure reproducibility and transparency, and through an Active Standardization Role—with our experts contributing to ETSI and ITU working groups—many of our innovations, including the Network Performance Score (NPS) and the Interactivity Test, have become industry benchmarks.

Verify and ensure device, service and network readiness

Verify and improve QoS/QoE KPI before network deployment:

Verify device performance
Verify network coverage and RF performance KPI

Verify technologies, features and services

Tune and validate QoS/QoE KPIs

Validate and improve QoS/QoE during network roll-out:

Assess, optimize and monitor QoS/QoE KPIs

Test and improve QoS/QoE during network operation:

Explore more relevant content

White paper: Interactivity test

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QoS and QoE performance testing​ based on harmonized mobile network methodologies​