The 7.3 GHz (350 MHz bandwidth) Earth Observation Satellite (EOS) band, while not protected, is used for Passive Sea Surface Temperature (P-SST) measurements that provide important data for weather forecasts, coastal disaster prevention, climate modeling, and oceanographic research. The full 7 GHz band (7.125 to 8.4 GHz), which encompasses these EOS frequencies, is the largest contiguous block of potentially available mid-band spectrum and will play a significant role in meeting the anticipated demand for wireless services. A Real Time Geofenced Spectrum Sharing (RGSS) system is shown to be a practical and near term solution to spectrum sharing between P-SST measurements and 5G or 6G networks in the 7GHz band. RGSS enables IMT networks and EOS radiometers to share 350MHz of overlapping spectrum centered at 7.3 GHz. It prevents interference to P-SST measurements while simultaneously allowing IMT systems un-constrained access to the shared spectrum greater than 99.9% of the time. Subscriber impact during the less than 0.1 percent paused access time can be prevented by using 3GPP defined capabilities and O-RAN APIs to move subscribers to other frequencies. Paused access time data from a proof-of-concept RGSS system is available to academic, government, and industry researchers through a web or programmatic interface.
翻译:7.3 GHz(350 MHz带宽)的地球观测卫星频段虽未受保护,但被用于被动海表温度测量,为天气预报、海岸防灾、气候建模和海洋学研究提供重要数据。涵盖这些地球观测卫星频率的完整7 GHz频段(7.125至8.4 GHz)是潜在可用的最大连续中频频谱块,将在满足预期无线服务需求方面发挥重要作用。实时地理围栏频谱共享系统被证明是7 GHz频段中实现被动海表温度测量与5G或6G网络频谱共享的实用近期解决方案。该系统使IMT网络与地球观测卫星辐射计能够共享以7.3 GHz为中心的350 MHz重叠频谱。该方案在防止对被动海表温度测量产生干扰的同时,允许IMT系统在超过99.9%的时间内无约束地访问共享频谱。通过利用3GPP定义的功能和O-RAN API将用户切换到其他频率,可避免在少于0.1%的接入暂停时段对用户造成影响。概念验证系统的接入暂停时间数据可通过网络或编程接口提供给学术、政府及产业研究人员。