Research Article
Co-channel Interference Between Satellite and 5G System in C Band
@INPROCEEDINGS{10.1007/978-3-030-66785-6_44, author={Xinxin Miao and Mingchuan Yang}, title={Co-channel Interference Between Satellite and 5G System in C Band}, proceedings={Machine Learning and Intelligent Communications. 5th International Conference, MLICOM 2020, Shenzhen, China, September 26-27, 2020, Proceedings}, proceedings_a={MLICOM}, year={2021}, month={1}, keywords={5G FSS earth station Co-channel interference Protection distance}, doi={10.1007/978-3-030-66785-6_44} }- Xinxin Miao
Mingchuan Yang
Year: 2021
Co-channel Interference Between Satellite and 5G System in C Band
MLICOM
Springer
DOI: 10.1007/978-3-030-66785-6_44
Abstract
The 2019 World Radio Conference proposed to add 11 candidate frequency bands for the 5G system. Some of the C-bands are frequencies currently operated by the fixed-satellite service. When the 5G system and the fixed-satellite service share the same frequency band, the problem of co-frequency interference between systems is bound to occur. This paper studies the co-channel interference analysis from the 5G system to the FSS downlink in the 3400–3600 MHz frequency band. According to the specific interference scenario, antenna model and path loss model, Monte Carlo algorithm is used to evaluate the distribution of 5G interfering base stations, and the interference simulation analysis is carried out through link calculation, power control and system scheduling. The research results show that to meet the protection standards of the FSS system, the distance between the base station and the earth station needs to be at least 15 to 20 km. Moreover, the interference factors of the 5G system to the FSS mainly include angle between the main axis of the FSS earth station antenna and the direction of the base station interference signal, the number of 5G base stations, and the transmission power of 5G base stations.
