The National Natural Science Foundation of China(62471061);Beijing Natural Science Foundation-Xiaomi Innovation Joint Fund(L243028);Shenzhen Undertakes the National Science and Technology Major Project Collaborative Innovation Special Project(CJGJZD20230724092759005)
WANG Haomin,WANG Wenchao,HUAN Qingzhou,et al.Perspective on OTA testing methods and key technologies for 6G space-air-ground integrated systems[J].Telecommunications Science,2025,41(11):107-117.
WANG Haomin,WANG Wenchao,HUAN Qingzhou,et al.Perspective on OTA testing methods and key technologies for 6G space-air-ground integrated systems[J].Telecommunications Science,2025,41(11):107-117. DOI: 10.11959/j.issn.1000-0801.2025205.
Perspective on OTA testing methods and key technologies for 6G space-air-ground integrated systems
Space-air-ground integrated technology is one of the core enabling technologies for realizing the vision of ubiquitous connectivity in 6G networks. Efficient over-the-air (OTA) testing solutions are urgently needed for the verification of key technologies and the performance evaluation of devices. Firstly
the development status
network architecture
and channel characteristics of space-air-ground integrated systems were analyzed. Then
based on the specific characteristics and testing requirements of 6G space-air-ground integrated systems
a satellite-ground integrated OTA testing system was proposed to align with the channel environment characteristics of the communication devices in space-air-ground integrated systems
thereby enabling highly efficient OTA testing. Finally
the standardization and technical challenges that future OTA testing research for 6G space-air-ground integrated systems will encounter were summarized
and potential research directions were outlined
providing a theoretical foundation and guidance for future studies.
关键词
Keywords
references
CHEN S Z , SUN S H , KANG S L . System integration of terrestrial mobile communication and satellite communication: the trends, challenges and key technologies in B5G and 6G [J ] . China Communications , 2020 , 17 ( 12 ): 156 - 171 .
ITU-R . Framework and overall objectives of the future development of IMT for 2030 and beyond : ITU-R M.2160-0 [S ] . 2023 .
SUN Y H , FENG X A , PENG M G . Mega LEO satellite constellations networking: Challenges and key technologies [J ] . Space-Integrated-Ground Information Networks , 2024 , 5 ( 4 ): 57 - 74 .
CHENG N , CHEN F J , CHEN W , et al . 6G omni-scenario on-demand services provisioning: vision, technology and prospect [J ] . Scientia Sinica (Informationis) , 2024 , 54 ( 5 ): 1025 - 1054 .
GAO H Q , WANG Z Q , ZHANG X , et al . Over-the-air performance testing of 5G new radio user equipment: standardization and challenges [J ] . IEEE Communications Standards Magazine , 2022 , 6 ( 2 ): 71 - 78 .
CORREIA R , VARUM T , MATOS J N , et al . User terminal segments for low-earth orbit satellite constellations: commercial systems and innovative research ideas [J ] . IEEE Microwave Magazine , 2022 , 23 ( 10 ): 47 - 58 .
SU M D , SU X , ZHAO Q L , et al . BeiDou augmented navigation from low earth orbit satellites [J ] . Sensors , 2019 , 19 ( 1 ): 198 .
3GPP. Study on new radio (NR) to support non-terrestrial networks: TR 38.811 (V15.4.0) [S ] . 2020 .
ITU-R . Propagation data and prediction methods required for the design of Earth-space telecommunication systems : ITU-R P.618 [S ] . 2023 .
ITU-R . Prediction of clutter loss : ITU-R P.2108 [S ] . 2021 .
ITU-R . Propagation data required for the design systems in the land mobile-satellite service : ITU-R P.681 [S ] . 2019 .
3GPP. Study on channel model for frequencies from 0.5 to 100 GHz (Release 17): TR38.901 (V19.0.0) [S ] . 2025 .
FAN W , CARREÑO BAUTISTA DE LISBONA X C B , SUN F , et al . Emulating spatial characteristics of MIMO channels for OTA testing [J ] . IEEE Transactions on Antennas and Propagation , 2013 , 61 ( 8 ): 4306 - 4314 .
FAN W , KYOSTI P , FAN S , et al . 3D channel model emulation in a MIMO OTA setup [C ] // Proceedings of the 2013 IEEE 78th Vehicular Technology Conference (VTC Fall) . Piscataway : IEEE Press , 2013 : 1 - 5 .
FAN W , CARTON I , KYOSTI P , et al . A step toward 5G in 2020: low-cost OTA performance evaluation of massive MIMO base stations [J ] . IEEE Antennas and Propagation Magazine , 2017 , 59 ( 1 ): 38 - 47 .
KYÖSTI P , HENTILÄ L , FAN W , et al . On radiated performance evaluation of massive MIMO devices in multiprobe anechoic chamber OTA setups [J ] . IEEE Transactions on Antennas and Propagation , 2018 , 66 ( 10 ): 5485 - 5497 .
LI Y , XIN L J , LIU X Q , et al . Dual anechoic chamber setup for over-the-air radiated testing of 5G devices [J ] . IEEE Transactions on Antennas and Propagation , 2020 , 68 ( 3 ): 2469 - 2474 .
FAN W , CARTON I , KYÖSTI P , et al . Emulating ray-tracing channels in multiprobe anechoic chamber setups for virtual drive testing [J ] . IEEE Transactions on Antennas and Propagation , 2016 , 64 ( 2 ): 730 - 739 .
LI Y , XIN L J , ZHANG X . On probe weighting for massive MIMO OTA testing based on angular spectrum similarity [J ] . IEEE Antennas and Wireless Propagation Letters , 2019 , 18 ( 7 ): 1497 - 1501 .