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Will Korea's radio wave model be applied to international standards for mmWave and THz communication?
Published2020.08.24 15:51The National Radio Research Institute of the Ministry of Science and ICT announced on the 23rd that it has laid the foundation to secure next-generation communication technology by submitting a domestically developed radio wave model as an international standard at the meeting of the Group 3 (Segment 3) of the International Telecommunication Union Radiocommunication (ITU-R) held online for two weeks starting August 10.
A radio wave model is a model that simulates the path loss and characteristics of radio waves transmitted via multipath, and is used for purposes such as base station location and power output settings.
The international standard submitted this time was prepared to analyze the propagation characteristics of domestic 5G frequency bands (3.5 GHz, 28 GHz) and to develop propagation models for various environments such as smart factories, while also preparing for terahertz propagation models for future 6G frequencies.
Until now, bands above millimeter wave (30–300 GHz) have the advantage of providing large amounts of information, but their use has been limited to satellite communication and astronomical research due to significant path loss caused by obstacles.
Specifically, the 5G radio wave model presented the results of an analysis of radio wave loss caused by obstacles (glass, concrete, etc.) in high-speed mobile environments such as Vehicle to Vehicle (V2V) and KTX, as well as in indoor environments such as smart factories.
Previously, propagation models were devised through simulation. On the other hand, this standard has laid the foundation for the full-scale use of bands longer than millimeter waves in mobile communications and other applications in the future by providing a radio wave model suitable for domestic urban environments based on data measured in real-world settings such as Gwangju and Cheongju.
In addition, in order to discover and utilize radio resources in the terahertz band, which is currently being researched as a next-generation wireless communication frequency band, a radio wave model for the 275–450 GHz band was developed and submitted as an international standard, thereby laying the foundation for securing future radio resources.
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