The 4G and 5G deployment of massive MIMO capable radios increase peak EIRPs, which in turn increase the sizes of the RF EMF exclusion zones applied for the general public and workers if time averaging is not considered, sometimes to dimensions exceeding 20 meters. The deployment becomes even more challenging when multiple massive MIMO transmitters are co-sited with overlapping antenna ranges. This letter therefore proposes an algorithm for joint control of the time averaged EIRP produced by all co-sited radio transmitters at a site. The algorithm minimizes a new throughput degradation criterion, based on long term traffic averages of each radio transmitter. Simulations show that the controller improves the total throughput of the site and/or reduces the size of the total computed RF EMF exclusion zone, as compared to when per-radio average power control is applied.

中文翻译：

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用于 EMF 禁区计算的无线电发射机的协调平均 EIRP 控制

4G 和 5G 部署的大规模 MIMO 无线电增加了峰值 EIRP，如果不考虑时间平均，这反过来又增加了适用于普通公众和工作人员的 RF EMF 禁区的大小，有时甚至超过 20 米。当多个大规模 MIMO 发射器与重叠天线范围共址时，部署变得更具挑战性。因此，这封信提出了一种算法，用于联合控制一个站点上所有共站无线电发射机产生的时间平均 EIRP。该算法基于每个无线电发射机的长期流量平均值，最小化新的吞吐量降级标准。模拟表明，控制器提高了站点的总吞吐量和/或减少了总计算出的 RF EMF 禁区的大小，