Tag Archives: Dave Wright

It’s Time for YOU to Get Wise About CBRS

CBRS search

It stands for Citizens Broadband Radio Service, and has nothing to do with CB radio despite the similarities in the acronym. It’s time for my fellow Wi-Fi types to start paying attention to CBRS for real, and I’ll explain why in a bit.

A Quick Look Back to 2105

The CBRS thing been simmering for at least a half-dozen years. Let me quickly take you back to 2015, where I sat in on a related session at Wireless Network Field Day 8, by Dave Wright. Back then, Dave worked for Ruckus Wireless, now he’s the Director of Regulatory Affairs & Network Standards at CommScope, and President of the CBRS Alliance. Dave’s a fantastic gent, if you ever get the chance to talk with him. But even though that 2015 presentation could not have been delivered by anyone better, it still felt kinda faraway and foreign to the ears of a room full of Wi-Fi folks.

Almost There- 2019

But 2015 gave way to the future, and Dave’s vision very much would come to fruition. Sticking with Field Day, I was fortunate enough to go to Mobility Field Day 4 in 2019. This time the presenting vendor on the topic was startup Celona (new company, but staffed with some deep wireless experience and familiar names to us in the WLAN industry). At the time Celona presented, CBRS had long since advanced from being a twinkle in the eye of folks like Dave Wright, but still wasn’t quite ready for market as a production option for Private LTE and other applications. (What other applications? There’s a good paragraph on that in this Network World article.)

Early 2020- The FCC Opens the Floodgates for CBRS

Just a few weeks ago (it’s mid-February as I write this), the FCC delivered the news that everyone with a stake in CBRS, Private LTE, and in-building cellular was waiting for: the 3.5 GHz spectrum was officially available for sharing for these applications. Here’s a good article on that, along with the FCC’s own reference pages on 3.5 GHz.

Now things are moving… and we get to why we as Wi-Fi folks need to start paying attention.

Our Turf is Soon to Be Trampled On

I find the marketing blather that has 5G making Wi-Fi extinct, or that has Wi-Fi 6 making cellular irrelevant, to be pretty asinine. But then again…marketers. Whatever. It’s pretty clear that several trains have left the station, and they all will impact our environments and possibly/hopefully our employment, skills, and project opportunities.

Wi-Fi 6 is a given- it’s what comes next for us WLAN doers. 5G has new relevance given that a small cell will need to bolted up to every street light, cactus, bus stop and homeless person to get the coverage and performance that the mobile industry is promising out of Millimeter-wave 5G systems. Bringing 5G (or even 4G) inside of modern RF-unfriendly buildings gets us back to discussions of CBRS and private LTE. And so does the notion of industrial settings where maybe LTE-style wireless makes more sense than Wi-Fi for wireless connectivity, for a number of reasons.

We need to not only understand the changing wireless landscape, but also to embrace it and try to stake our claims in it.

Get Educated

There are no shortage of general-information articles out there for CBRS, private-LTE, etc. here’s a great one from Corning (I just spoke with them on this topic, but that will be it’s own blog). And there is certainly a lot of marketing floofypoo to be stepped around.

But if you want more formalized learning, check out this offering from CommScope. I have not taken it yet, but have heard good things from esteemed colleagues who have. Coursera also has a CBRS offering, and I have every reason to believe that CBRS will eventually manifest itself through CWNP’s excellent training materials in some form or fashion.

So… why care about CBRS? It’s here, for real, for starters. It’s being deployed. Someone needs to design it’s coverage, and tools like iBwave are already being used by many of us to do Wi-Fi. Why not get a piece of the new pie? If we don’t, someone else will. People are gonna luuuuuuv their Wi-Fi 6, yet are still going to demand rock-sold in-building cellular after spending fat coin on those $1K+ mobile devices and as more devices become “wireless” in every possible definition of the word.

This is the new world, my friends. Digital transformation, blah blah blah. There’s no escaping it.

A Voice of Clarity in the Fog of LTE-U

Open your web browser. Type in “LTE-U” news. Note the 19 million or so results that are returned.

Now scroll a bit through the first dozen, and you’ll pretty quickly see a mish-mash of opinions both pro and con. You’ll also get lost real quick in a sea of acronyms, political posturing, and turfy claims by all sides right before your brain starts to numb up. But let’s back up a bit…

For those who don’t know, LTE-U is the twinkle in the eye of the mobile carriers that expands the use of their services out of licensed frequencies and into the same unlicensed 5 GHz spectrum that the WLAN community has come to hold sacred. It could be devastating to Wi-Fi, or it may be non-disruptive. It all depends on what rhetoric you believe, and how it will be implemented. Notice that I didn’t say “how it MAY be implemented”, because it will absolutely become a reality in some form despite those of us on the WLAN side that don’t want it to. And the meanderings of the issue can be really, really hard to follow because tech + politics + emotion = confusion.

But I found my light in the fog, at Wireless Field Day 8. He works for Ruckus Wireless, and his name is Dave Wright.

I knew Dave just a bit before hearing his excellent presentation on LTE-U. I knew that he’s a straight-up guy, a gentleman with a good sense of humor, and just a pleasure to talk with about technology and things in common. But after Dave’s presentation at Field Day, I also realized that I finally found someone who not only gets the big picture of the LTE-U situation, but is also actively trying to guide it to a reasonable conclusion for both Ruckus’ product aspirations and the WLAN industry.

Dave’s presentation is a must-see. My friend and WLAN biggie Keith Parsons was also at Wireless Field Day, and did a nice job with his own treatment of both the topic, and Dave’s session.

I won’t say that I agree with every opinion Dave might have on LTE-U, but I will say that when he explains the various groups involved and potential technical outcomes of the LTE-U battle, you can actually understand them.

Given the complexity of the issues, that’s saying a lot.