GRGTEST, together with its subsidiary Guangzhou Shanfeng Measurement & Control Technology, has independently developed China's first "4G IoT Satellite Communication Integrated Test System." It fully covers all test items under Chapters 6 and 7 of the 3GPP 36.521-4 4G IoT NTN international standard, supporting multi-mode, multi-frequency, and multi-scenario automated testing. This system provides end-to-end test support for satellite communication devices and helps overcome technical barriers in the industry.
NTN (Non-Terrestrial Network) is a core direction of 6G, extending traditional terrestrial networks into space, air, sea, and land to achieve global coverage and all-scenario access. GRGTEST focuses on both 4G IoT and 5G NR aligned with international standards.
This breakthrough system fills a domestic gap and offers RF switching, remote filtering control, and multi-instrument integration, adaptable to complex test environments with one-click automation. Its core capabilities include automated testing, test configuration, data management, instrument setup, system calibration, and connection management-highlighting flexible configuration and efficient validation.
With this advancement, GRGTEST strengthens its technological leadership and comprehensive service capabilities in satellite communication testing, delivering highly reliable and customized test solutions to the industry.
About NTN (Non-Terrestrial Network)
It is a non-terrestrial network technology that enables traditional 3GPP terrestrial networks to break through the limitations of the earth's surface and expand into natural spaces such as space, sky, ocean, and land, forming an integrated ubiquitous access network that enables on-demand connectivity across all scenarios. The sixth generation of communication technology, namely 6G, considers NTN a core technical direction. Through deep integration of satellite communication and terrestrial networks, a global communication network will be constructed. This integration will overcome the geographical constraints of traditional terrestrial networks, extending coverage to high-altitude, marine, and other scenarios, achieving comprehensive all-scenario access capability spanning land, sea, air, and space.
Global 3GPP Standards define the international standard for NTN (Non-Terrestrial Public Network) based satellite communication, which under these standards is categorized into 4G IoT and 5G NR.