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Fifth-Generation Technologies Trials

机译：第五代技术试用

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Ericsson and NTT DOCOMO announced that in a joint fifthgeneration (5G) technologies trial, the companies achieved a cumulative 20 Gb/s of data throughput in an outdoor environment, using the 15-GHz frequency band with two simultaneously connected mobile devices of a downlink bitrate of more than 10 Gb/s each. In a separate trial, the companies also achieved data throughput that exceeded 10 Gb/s at a distance of approximately 70 m from the base station. Moreover, the tests reached data transmissions exceeding 9 Gb/s at a distance of approximately 120 m from the base station. The trials used Ericsson 5G radio prototypes with multiple user, multiple-input, multiple-output (MU-MIMO) and massive MIMO to increase downlink throughput. Ericsson 5G radio prototypes use MU-MIMO to transmit data to several user devices using the same time and frequency resources, thus increasing the system?s spectral efficiency. Massive MIMO?the combination of MIMO and beamforming with a large number of antenna elements-improves both throughput and energy efficiency. With beam tracking, Ericsson 5G radio prototypes track the position and movements of a given device and point one or more beams in the best direction for that device in real time, to ensure consistently reliable connections. These beams can originate from multiple transmission points. Each compact 5G radio prototype, the size of a piece of carry-on luggage, supports the equivalent of 40 long-term evolution (LTE) carriers.
机译：爱立信与NTT DOCOMO宣布，在第五代（5G）联合技术试验中，两家公司在15 GHz频段，两个同时连接的下行链路比特率移动设备一起使用的室外环境中，实现了累计20 Gb / s的数据吞吐量每个都超过10 Gb / s。在另一项试验中，两家公司在距基站约70 m的距离上也实现了超过10 Gb / s的数据吞吐量。此外，测试在距基站约120 m的距离处达到了超过9 Gb / s的数据传输。这些试验使用了具有多用户，多输入，多输出（MU-MIMO）和大规模MIMO的爱立信5G无线电原型，以提高下行链路吞吐量。爱立信5G无线电原型使用MU-MIMO使用相同的时间和频率资源将数据传输到多个用户设备，从而提高了系统的频谱效率。大规模MIMO – MIMO和波束赋形的结合以及大量天线元件，可提高吞吐量和能效。通过波束跟踪，爱立信5G无线电原型可以跟踪给定设备的位置和移动，并实时为该设备指向一个或多个波束的最佳方向，以确保始终如一的可靠连接。这些光束可以来自多个传输点。每个紧凑型5G无线电原型机的大小仅为一件随身行李的大小，相当于支持40个长期演进（LTE）运营商。

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