Abstract:

Firstly, the inevitable trend was discussed that the available spectrum of the future mobile communication systems would be found in the higher frequency band, since the gap between the future spectrum requirements and the current planned total spectrum in the low-band was considerable. Then the status of the development of global hig h frequency wireless communications were introduced, in terms of high frequency band planning, related standardization and organization activities. Next, the propagation characteristics of high frequency bands were analyzed and summarized. Finally, the advantages and challenges of future high-band communications were proposed from potential available bands, transmission technologies, networking technologies, and radio frequency technologies.

Key words: spectrum requirement, high frequency band, wireless communication, 5G