Dear Tom. Huawei has shipped 600,000 of your Massive MIMO systems

Tom Marzetta introduced Massive MIMO in his classic 2010 paper, Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas. Huawei has now shipped 200,000 4G MM radios and 400,000 5G radios. All 5G systems to date are designed for Massive MIMO.

In 2014, Tom told me to expect systems in four or five years. So I was startled to discover ZTE and Huawei shipping MM systems in 2016. I believe I was the first to report that China Mobile was buying 4G MM from Huawei. Huang Yuhong of China Mobile told me to expect MM would deliver about three times the capacity.

Although Marzetta invented MM at Nokia Bell Labs, Nokia did not ship until 2018. Ericsson and Samsung also began deliveries in 2018. The Chinese are clearly ahead.

Huawei announced their third generation of MM at their Zurich event, with improved software/algorithms. Ryan Ding told us Huawei employs 700 mathematicians, surely more than competitors.

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Huawei 5G videos for geeks

Peter Clarke, a medical student with a hobby, visits telecom sites in England and shoots videos. Along the way, he provides more technical detail on 4G and especially 5G than any other source I know.

Clarke’s second video is from Yorkshire.

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