The era of the fifth-generation (5G) New Radio (NR) technology has just begun, and its promises to substantially improve the system performance have turned into reality. The 5G NR enabled Non-Terrestrial Network (NTN) is almost upon us and will represent an effective solution to provide services anytime, anywhere, and over wider coverage areas. In this context, high throughput satellite systems with advanced multi-beam transmissions have gained significant attention owing to their ability to boost the system capacity through beam frequency re-use, increased user data rates, and system spectral efficiency. In this paper, we propose a novel radio resource management scheme, named Single-Frequency Multi-Beam Transmission (SF-MBT), for efficient delivery of the enhanced Mobile Broadband (eMBB) services over the 5G NR multi-beam NTN systems. The main thinking is to group beams into the dedicated Beam Areas, wherein a certain content flow is delivered via simultaneous multi-beam transmissions over the same radio resources without causing inter-beam interference. A simulation campaign is conducted under different scenarios to assess the effectiveness of the proposed SF-MBT algorithm as compared to the current schemes based on frequency reuse. System-wide performance is evaluated in terms of the aggregate data rate, mean throughput, and system spectral efficiency.

中文翻译：

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通过启用5G NR的多波束非地面网络的广播服务

第五代（5G）新无线电（NR）技术的时代才刚刚开始，其大幅提高系统性能的承诺已成为现实。支持5G NR的非地面网络（NTN）即将到来，它将代表一种有效的解决方案，可随时随地提供更广泛的覆盖范围。在这种情况下，具有先进的多波束传输的高吞吐量卫星系统由于能够通过重用波束频率，增加用户数据速率和系统频谱效率来提高系统容量而备受关注。在本文中，我们提出了一种新颖的无线资源管理方案，称为单频多波束传输（SF-MBT），用于在5G NR多波束NTN系统上有效交付增强的移动宽带（eMBB）服务。主要思想是将波束分组到专用波束区域，其中通过同一无线电资源上的同时多波束传输传递一定的内容流，而不会引起波束间干扰。与基于频率重用的当前方案相比，在不同情况下进行了模拟活动以评估所提出的SF-MBT算法的有效性。系统会根据总数据速率，平均吞吐量和系统频谱效率来评估系统范围的性能。与基于频率重用的当前方案相比，在不同情况下进行了模拟活动以评估所提出的SF-MBT算法的有效性。系统将根据总数据速率，平均吞吐量和系统频谱效率对系统范围的性能进行评估。与基于频率重用的当前方案相比，在不同情况下进行了模拟活动以评估所提出的SF-MBT算法的有效性。系统将根据总数据速率，平均吞吐量和系统频谱效率对系统范围的性能进行评估。