On August 16, 2024, the U.S. Federal Communications Commission (FCC) released a Notice of Proposed Rulemaking (NPRM) and Declaratory Ruling seeking to revise the rules for the Citizens Broadband Radio Service (CBRS) band, 3.55-3.7 GHz [1]. While CBRS was developed specifically for the U.S. spectrum regulatory regime, it has inspired similar use of shared, locally licensed spectrum in other countries, for example in the U.K., where Ofcom is seeking to enhance access to shared spectrum in 3.8-4.2 GHz and aligning operational rules with CBRS [2]. This column will briefly summarize the background of the band, existing CBRS deployments and interesting research problems arising from the enhancements proposed in [1].

中文翻译：

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CBRS 共享频段的持续创新


2024 年 8 月 16 日，美国联邦通信委员会 (FCC) 发布了拟议规则制定通知 (NPRM) 和声明性裁决，寻求修订公民宽带无线电服务 (CBRS) 频段 3.55-3.7 GHz 的规则 [1]。虽然 CBRS 是专门为美国频谱监管制度开发的，但它也激发了其他国家/地区对共享、本地许可频谱的类似使用，例如在英国，Ofcom 正在寻求增强对 3.8-4.2 GHz 共享频谱的访问，并调整CBRS 的操作规则 [2]。本专栏将简要总结该频段的背景、现有的 CBRS 部署以及[1]中提出的增强功能所产生的有趣的研究问题。