The Critical Value of SGS Wireless Communications Laboratories in Regulatory and Conformance Verification

You need a trustworthy verification partner

The deep integration of 5G and Wi-Fi 7 technologies has made mobile device verification more complex than ever before. The close proximity of multiple wireless technologies within devices, such as multi-band radios and Bluetooth, often results in interference between RF, EMC and antenna systems. This creates challenging 'coexistence hotspots' and noise issues that are difficult to resolve.

Additionally, to ensure users experience no delays or interruptions due to poor wireless signals when streaming movies on platforms such as Netflix or watching videos on YouTube, product design engineers strive to maximize wireless communication transmission power. However, Specific Absorption Rate (SAR) values are directly correlated with transmission output power, so it is highly likely that they will exceed regulatory limits if wireless devices are equipped with multiple wireless communication modules and transmit at maximum power for extended periods. To address this issue, wireless communication chip manufacturers have developed Time-Averaged Specific Absorption Rate (TAS) algorithms that intelligently manage the transmission power of multiple radio antennas. This technology ensures that the SAR value remains within regulatory limits over a specified time period, while enabling the device to maintain optimal wireless transmission performance.

Notably, the FCC's new rules now prohibit and withdraw recognition for test labs and TCBs controlled by untrustworthy entities, like foreign adversary governments. This action highlights the market's need for reliable testing sources, making it critical for brands to choose globally recognized, independently operated laboratories with cross-regional capabilities for better risk management and supply chain resilience, such as SGS.

 

The Differentiation and Key Advantages of SGS

At SGS, we fully understand the complexities involved in verification processes within the global mobile communications market. Therefore, we are committed to providing comprehensive services through highly integrated verification strategies. By simplifying service workflows with a single point of contact at our laboratories, we help to shorten product development cycles.

Our goal regarding consistency extends beyond merely ensuring products 'pass certification' to guaranteeing they 'perform reliably in the field'. In addition to comprehensive coverage of PTCRB/GCF protocols, we enhance CTIA OTA testing to incorporate grip/housing effects and conduct pre-testing of critical functions such as VoNR and emergency calls to ensure stable, real-world user experiences.

In particular, we are the one of the laboratoruies in Taiwan with the most comprehensive TAS verification scope, and our professional capabilities have made us the world's first MTK-authorized provider for WLAN/BT TA-SAR 2.0 and other leading qualifications. This offers customers a wider range of service options.

 

Conformance × OTA: transforming 'specifications' into 'experience' in one go

SGS offers three key advantages in mobile phone testing for conformance and over-the-air (OTA) testing.

1. Complete regulatory scope coverage.
2. Standardized testing processes
3. Field trial

We hold PTCRB/GCF recognized qualification for RF/RRM/protocol compliance, which covers conformance. We effectively reduce re-testing and schedule risks by integrating multi-carrier variance matrices and pre-checklists.

For OTA, we measure TRP/TIS and MIMO/beamforming in accordance with the CTIA methodology, taking into account ergonomic factors such as grip, casing materials and screen protectors. In terms of processes, SGS shortens critical paths through multi-site parallel testing and automated measurements. Measurement results are fully tied to FW builds, RF BoMs, antenna versions and SKUs, ensuring regression test traceability and comparability. For products incorporating satellite/IoT-NTN (e.g. Skylo), we integrate the relevant scenario validation to complete the closed-loop process, taking it from 'passing tests' to 'deployment readiness and an excellent user experience'.

 

Leave the complexity to SGS and the speed to the market

In the fast-paced market for mobile communications products, we believe that compliance is merely the entry ticket — customer trust is the key. With our in-depth knowledge of FCC and global regulatory changes, our advanced TA-SAR verification methods, our thorough PTCRB/GCF and carrier approvals, and our GMA (Global Market Access) services in over 180 countries and areas, SGS can help your wireless products obtain essential certifications efficiently and robustly. We support your products every step of the way, from prototype to achieving global recognition.

 

For more information about SGS Wireless Lab, please contact us:

• Email: twwireless.MKT@sgs.com
• Tel: (02) 2299-3279 # 1530 / 1522 / 1567