Connectivity has become integral to how we live, work, and interact. From cars to workplaces to leisure activities, connected devices underpin our daily routines. They enable efficiency and convenience, allowing us to work productively, stay in constant contact with friends and family, navigate cities safely, stream entertainment while commuting and so much more.
As our reliance on connectivity grows, so does the expectation that devices will operate seamlessly in real-world environments. Any disruption can have significant consequences, making consistent and dependable performance essential.
Innovation and complexity
Rapid technological innovation has created increasingly complex ecosystems. The proliferation of devices and evolving wireless technologies – such as 5G, the Internet of Things (IoT), Wi-Fi 6, and Bluetooth 5.0 – means networks must perform to defined parameters to avoid interference or degradation.
At the same time, governments worldwide have strengthened regulatory frameworks to ensure safety, interoperability, and resilience. Compliance requirements are designed to protect consumers and maintain trust in connected systems through frameworks including the US Federal Communications Commission (FCC) Part 15, the EU Radio Equipment Directive (RED) and ETSI EN 301 489 (EMC), plus radio frequency (RF) exposure requirements such as specific absorption rate (SAR) and IEC/IEEE 62704.
Failure to operate safely and effectively in the real world could result in:
- Device malfunctions caused by interference or poor signal propagation
- Navigation errors that compromise safety
- Vulnerabilities that expose users to cyberattacks or data breaches
- Service disruptions that erode consumer confidence
- Regulatory non-compliance leading to delays, fines and market withdrawal
Wireless field testing: a practical solution
Wireless field testing bridges the gap between design and user experience. It replicates real-world operability, verifying coverage, speed, and reliability in diverse conditions.
Standardised field testing protocols provide structure and consistency, ensuring replicable results, helping operators meet regulatory requirements and customer expectations while optimising performance through reference methods such as 3GPP drive-test key performance indicators (KPIs), ITU-T quality metrics and GSMA field interoperability testing (FIT) guidelines.
Key components include:
- Test plan development – defining objectives, parameters and KPIs
- Location selection – representative of real usage scenarios (urban, suburban or rural)
- Equipment and tools – ensuring appropriate analysers, drive-test systems, and mobile devices equipped with specialised software are available
- Data collection and analysis – evaluating KPIs such as signal quality, throughput and handover success
Challenges to wireless field testing might include adverse weather conditions, interference and logistical hurdles. These may impact the reliability of results and should be addressed early in the planning stage through adaptive strategies such as contingency routing, backup equipment and spectrum monitoring scans.
Wireless field testing is essential to delivering the performance and reliability consumers expect. It provides invaluable insights into factors such as antenna placement, power levels and frequency allocations. Ongoing monitoring ensures networks remain robust and responsive as wireless technologies advance and demands evolve.
SGS offers a comprehensive suite of services via specialised teams around the world who conduct handset and network verification using standard test plans across diverse environments. Testing covers voice, data and feature performance under many coverage conditions, ensuring devices operate seamlessly wherever consumers rely on them.
Through FIT evaluations, teams also validate the performance of handsets and other wireless devices against reference platforms in real-world conditions. Tests include call processing, emergency services (e911), data performance and feature validation across multiple technologies based on GSMA and operator-specific criteria. Tests are executed in both static and mobile environments following industry-accepted and certified methodologies.
Such end-to-end support accelerates approval and ensures seamless performance, helping manufacturers and operators deliver reliable, compliant, and future-ready products with confidence.
