Overcoming 5G’s tree problem

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it has been known for a long time That trees can slow down some 5G signals. A recent federal study aims to build a more accurate signal strength prediction model to find out how much.

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Why this matters: 5G has the potential to supercharge wireless networks, but its rollout has revealed a number of complex challenges.

What they found: Researchers at National Institute of Standards and Technology strength gauge The number of signals transmitted through different types of trees during different seasons of the year depends on the high-frequency millimeter wave spectrum.

  • Researchers have known that obstacles such as foliage or rain can reduce millimeter wave signal strength, but the NIST team wanted to measure the effect of trees more precisely.
  • The researchers conducted measurements on seven types of trees on their campus in Gaithersburg, MD.
  • As expected, the higher the tree, the more strength the signal will lose, Nada Golmi, head of NIST’s Wireless Networks Division in the Communications Technology Laboratory, told Nerdshala.
  • The research, which is part of an ongoing project, aims to provide more accurate measurements of that signal loss, which Golmey says NIST is sharing to help make the modeling more accurate.
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What are they saying: “By providing a way to measure and measure, we are enabling others to more accurately, accurately assess damage so that it can be overcome,” Golmey said. “We believe this can be overcome.”

big picture: Verizon already uses millimeter wave spectrum for some of its 5G services, but both it and AT&T plan to use airwaves at a lower frequency known as C-band. Extend 5G service,

  • Spectrum at that lower frequency can penetrate barriers better, but C-band comes with its own set of controversies amid aviation industry concerns about potential interference. (T-Mobile is not using C-band for its 5G services and has avoided the drama.)
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What will happen next: With more services congesting the airwaves, Golmi says harnessing the millimeter wave spectrum — and overcoming its limitations — will be essential.

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