Abstract
This paper focuses on the sharing and compatibility studies of International Mobile Telecommunications 2020 (IMT-2020) and inter-satellite service (ISS) in 26 GHz frequency band, which was selected by International Telecommunications Union (ITU) as one of the most promising candidate frequency bands for 5G. Based on relevant ITU recommendations and reports, and current technical characteristics of both systems, a methodology is developed for the interference coexistence analysis between them. The spatial and temporal distribution analysis is proposed and the calculation of IMT-2020 aggregate interference takes the actual urban population into consideration. The results show that these two systems have considerable possibilities in coexistence in 26 GHz frequency band.
Highlights
Spectrum is one of the most basis factors of the development of IMT industry
International Telecommunications Union (ITU)-R set up Task Group 5/1 and established Agenda Item (AI) 1.13 in WRC-19 to explore whether it is possible to share frequency bands between IMT and incumbent services
24.25-27.5 GHz band is the lowest section in these candidate frequency bands of WRC-19 AI 1.13 and this band is already allocated to mobile service as a primary service in ITU Radio Regulations [3]
Summary
Spectrum is one of the most basis factors of the development of IMT industry. As the demand for broadband wireless communication is growing at a high rate of speed, the deficits of spectrum requirement continue to increase. There is almost no more abundant frequency band can be used below 6 GHz, and finding several higher frequency bands for IMT-2020 is extremely necessary [1]. In this regard, International Telecommunications Union (ITU) has pointed out 11 candidate frequency bands (ranging 24.25-86 GHz) above 6 GHz during 2015 World Radiocommunication Conference (WRC-15) and asked for some feasibility verification on a worldwide scale [2]. ITU-R set up Task Group 5/1 and established Agenda Item (AI) 1.13 in WRC-19 to explore whether it is possible to share frequency bands between IMT and incumbent services. It is obligatory to ensure IMT system do not interfere with other incumbents
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