- Keysight Technologies announced it has provided a 28 GHz Channel Sounding Solution to the Japan’s mobile service provider NTT Docomo, for a channel-sounding research project.
This project is part of an ongoing agreement between the two companies to develop next-generation 5G wireless communication systems by conducting channel-sounding studies at mmWave frequencies.
5G channel sounding is required to characterize the air interface for the new 5G radio-communication system in order to design reliable 5G channel models.. It means measuring parameters such as path loss, power delay profile, reflection, and various fading profiles including Doppler shift.
Using the Keysight 5G 28 GHz Channel Sounding Solution with wideband MIMO data capture techniques enables to measure angular spread with fewer measurements and improve resolution of the multi-path parameters.
The Japanese high frequency channel sampling project is using this 5G MIMO solution at 28 GHz. Keysight and NTT Docomo recently cooperated on a similar project in a 60 GHz fixed use case. The results of this research were presented in an article entitled “Scattering Characteristics of the Human Body in 67-GHz Band”, published in IEICE Transaction on Communications.
For Yukihiko Okumura, Group leader of 5G Radio Access Network Research Group, Research Laboratories of NTT Docomo, “the technical support and expertise from Keysight in 5G channel-sounding techniques for mobility helped us understand the channel behavior at mmWave frequencies, especially travelling at high speeds.”