SONG Yanjun,XIAO Yongwei,SUN Chenhua.Analysis and future development of direct-to-handset satellite key technologies[J].Telecommunications Science,2024,40(04):1-9.
SONG Yanjun,XIAO Yongwei,SUN Chenhua.Analysis and future development of direct-to-handset satellite key technologies[J].Telecommunications Science,2024,40(04):1-9. DOI: 10.11959/j.issn.1000-0801.2024097.
Analysis and future development of direct-to-handset satellite key technologies
The technology of direct-to-handset satellite is developing rapidly
which is the result of many factors such as the breakthrough of payload technology
the innovation in mobile phone technology
and the standards verification. Through the introduction of direct-to-handset satellite
two technical routes and three realization methods of direct-to-handset satellite were summarized. According to the technical problems of satellite-ground frequency sharing
space-borne antenna and space-borne base station
the key research contents were given based on the actual system and application scenarios. As the component of 5G communication and the basic of 6G communication
the future development of direct-to-handset satellite were discussed.
SUN Y H , PENG M G . Low earth orbit satellite communication supporting direct connection with mobile phones: key technologies, recent progress and future directions [J ] . Telecommunications Science , 2023 , 39 ( 2 ): 25 - 36 .
SUN C H , ZHANG J S , ZHAO W S , et al . Comparative analysis of GEO and LEO broadband satellite communication system [J ] . Radio Communications Technology , 2020 , 46 ( 5 ): 505 - 510 .
CHEN S Z . Analysis of LEO satellite communication and suggestions for its development strategy in China [J ] . Telecommunications Science , 2020 , 36 ( 6 ): 1 - 13 .
WANG Y F , GU L H , LIU H P . Status quo and future development of LEO satellite mobile communication [J ] . Communications Technology , 2020 , 53 ( 10 ): 2447 - 2453 .
SUN Y H , XU H T , PENG M G . Direct-to-mobile low earth orbit satellite communication: architecture, key technologies, and future perspective [J ] . Mobile Communications , 2024 , 48 ( 1 ): 103 - 110 .
MIAO D S , CHAI L , SUN J C , et al . Key technologies and evolution of 5G non-terrestrial network [J ] . Telecommunications Science , 2022 , 38 ( 3 ): 10 - 21 .
3GPP. Study on new radio (NR) to support non-terrestrial networks: TR 38.811 [S ] . 2020 .
3GPP. Solutions for NR to support non-terrestrial networks (NTN): TR 38.821 [S ] . 2019 .
3GPP. Study on using satellite access in 5G: TR 22.822 [S ] . 2018 .
EL JAAFARI M , CHUBERRE N , ANJUERE S , et al . Introduction to the 3GPP-defined NTN standard: a comprehensive view on the 3GPP work on NTN [J ] . International Journal of Satellite Communications and Networking , 2023 , 41 ( 3 ): 220 - 238 .
HOSSEINIAN M , CHOI J P , CHANG S H , et al . Review of 5G NTN standards development and technical challenges for satellite integration with the 5G network [J ] . IEEE Aerospace and Electronic Systems Magazine , 2021 , 36 ( 8 ): 22 - 31 .
TANG J Y , LI G X , BIAN D M , et al . Review on resource allocation for beam-hopping satellite [J ] . Mobile Communications , 2019 , 43 ( 5 ): 21 - 26 .
DING X , XU X , ZHANG S B , et al . Service-adaptive resource allocation method for satellite beam-hooping systems [J ] . Journal of Army Engineering University of PLA , 2022 , 1 ( 3 ): 29 - 35 .