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Can 5G Replace Everybody’s Home Broadband?

When it comes to the possibility of home broadband competition, we want to believe. And in the case of 5G mobile broadband, wireless carriers want us to believe, too. But whether or not technological and commercial realities will reward that faith remains unclear. As with 5G smartphones, the basic challenge here sits at the intersection of the electromagnetic spectrum and telecom infrastructure economics.

When delivered over millimeter-wave frequencies and their copious amounts of free spectrum, 5G can match the speed and latency of fiber-optic broadband, with downloads of 1 gigabit per second and ping times under 10 milliseconds. But on those frequencies of 24GHz and up, signals struggle to reach more than a thousand feet outdoors.

Carriers can fix that by building many more cell sites, each with its own fiber backhaul, but a fiber-to-the-block build-out may not be appreciably cheaper than fiber-to-the-home deployments. And while residences don’t move and don’t mind wireless antennas larger than a shirt pocket—unlike individual wireless subscribers—residences also have walls that often block mmWave signals. (Presumably also unlike individual wireless subscribers.)

The other frequency flavors of 5G (the low- and mid-band ones) don’t suffer mmWave’s allergies to distance or drywall. But they also can’t match its speed or its spectrum availability—which in the context of residential broadband means they may not sustain uncapped bandwidth.

So as much as residential customers might yearn for an alternative to their local telecom monopoly—or for any form of high-speed access besides laggy connectivity from satellites in geosynchronous orbit—5G doesn’t yet rank as a sure thing. There’s a promise, but many things still need to go right for that promise to be fulfilled.

Or, as New Street Research analyst Jonathan Chaplin phrased things in an email: “If your fundamental question is ‘will 5G allow you to dump Comcast’ the answer is absolutely! Depending.”

Verizon’s bet on millimeter-wave broadband

Consider the 5G Home service that Verizon Wireless launched in parts of Houston, Indianapolis, Los Angeles, and Sacramento in October 2018 (later expanded to parts of Chicago).

At $70 a month for unlimited data—with a $20 discount if you have a $30 or higher Verizon Wireless smartphone plan—and with download speeds from 300 to 940 megabits per second, the service would compare well with cable even if so many cable Internet plans didn’t include data caps and slap on modem-rental fees.

Reddit threads about the service in Houston, Sacramento and elsewhere offer a mix of praise for its performance (including reports of upload speeds in the range of 200Mbps, significantly faster than what most cable services offer) and complaints about it not being available at individual redditors’ addresses.

Verizon's 5G Houston coverage as of December 2019, with 5G "Ultra Wideband" in dark pink. For an idea of how much of the Houston metro this covers, you can zoom out from the same location at <a href="https://www.google.com/maps/place/Houston,+TX/@29.733833,-95.429167,14z/data=!4m5!3m4!1s0x8640b8b4488d8501:0xca0d02def365053b!8m2!3d29.7604267!4d-95.3698028">this Google Maps link</a>.
Enlarge / Verizon’s 5G Houston coverage as of December 2019, with 5G “Ultra Wideband” in dark pink. For an idea of how much of the Houston metro this covers, you can zoom out from the same location at this Google Maps link.

“Towards the beginning of service, there were a few firmware issues with the modem Verizon provided, but they patched that within a month,” said a software engineer in Sacramento who asked not to be named. “Since then, there’s not been significant downtime that I noticed.”

“Overall I’m happy with my 5G,” wrote another 5G Home user in Houston who runs a crisis-management firm. “No downtime that I can remember. I don’t have my exact speeds but it seems pretty quick. More than enough for my TV streaming and Web surfing.”

“There were only a few short (less than 30 min?) cases of 5G service downtime that I can recall, and they were all mostly toward the beginning of my service, so I imagine they were able to fix those stability issues quickly enough,” wrote Vincent Garcia, a software engineer in Sacramento. “My speeds seem to be the same as when I first got the service: 300-600 Mbps down, 120-140 Mbps up.”

Garcia noted one other benefit: “One interesting thing I’ve noticed is that other ISPs in my area seem to have stepped up their game in terms of value (at least in terms of their initial contract period).”

One early fear raised about millimeter-wave 5G, that it would suffer from “rain fade” akin to what cuts out satellite-TV reception during showers, doesn’t yet appear to have emerged as a serious problem. Those Reddit discussions about Verizon’s service don’t mention it, while a Twitter search reveals no firsthand reports of rain-faded 5G.

Ashutosh Dutta, a research scientist at the Johns Hopkins University’s Applied Physics Laboratory, pointed to a 2019 study by researchers at the Indian Institute of Information Technology Kalyani and the University of Calcutta’s Institute of Radio Physics and Electronics in West Bengal, India. They found that “proper fade mitigation techniques” can keep even heavy rain from disrupting millimeter-wave communication at frequencies up to 40 GHz. Verizon’s 5G Home, at 28 and 39 GHz, sits on the forgiving side of that line.

Source: Can 5G replace everybody’s home broadband? | Ars Technica

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