免授权频段通信技术与未来频谱需求
刘胜利, 余官定
Unlicensed spectrum communication technology and future spectrum requirement
Shengli LIU, Guanding YU
电信科学 . 2023, (12): 29 -41 .  DOI: 10.11959/j.issn.1000-0801.2023256