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Blog Posts by Michael O’Rielly

Driving Wi-Fi Ahead: the Upper 5 GHz Band

February 23, 2015 - 05:02 PM

Today’s Wi-Fi spectrum bands are wildly popular.  But with more and more people and devices taking advantage of this technology, these bands are getting congested.  It reminds us of the famous Yogi Berra quote, “Nobody goes there anymore; it’s too crowded.” 

In response to the growing use of Wi-Fi, the Federal Communications Commission has taken steps to meet the growing demand for additional unlicensed spectrum.  Last year, we added 100 megahertz of spectrum for Wi-Fi in the lower 5 GHz band.  The Commission is also seeking to secure some unlicensed spectrum opportunities in the 600 MHz band as part of our upcoming incentive auction.  But more needs to be done—and soon.

One spectrum band that we believe needs greater attention is in the upper 5 GHz band.  In light of the proximity to spectrum in other parts of the 5 GHz band that are already used for unlicensed services, this is a prime candidate to help meet the demand for Wi-Fi.  Unlicensed services generally share spectrum with other radio services on a non-interference basis.  So one of the bands identified for potential new sharing is the 75 megahertz of spectrum located at 5850 to 5925 MHz (also known as the U-NII-4 band) that was allocated by the Commission in 1999 for Dedicated Short Range Communications Service (DSRC) systems intended to improve roadway safety. 

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