Category Archives: IEEE Spectrum

Broadcasters Explore a New Option for TV: 5G

TV broadcasters may have a new way to reach the cordless generation: 5G. In July, the Federal Communications Commission (FCC) granted a six-month experimental license to a low-power television network in Massachusetts to transmit video and other data one-way following the 5G protocol over a portion of the ultra high frequency (UHF) band via television towers.

If television broadcasters can meet some of consumers’ voracious demand for Internet video streaming using TV hardware and spectrum, it will free up some network bandwidth in spectrum previously used for two-way cellular signals and create new business opportunities. The FCC granted the Sinclair Broadcasting Group a similar license in 2021, and Czech telecom CRA began broadcasting to mobile phones earlier this year as well.

Low-power television networks—which already target audiences that major broadcasters don’t—may be able to figure out how to make 5G work.

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Political Backlash Ramps Up Digital Privacy Laws

The wheels of justice may turn slowly, but tech ramifications sometimes turn around on a shorter timetable. 

The U.S. Supreme Court’s 2022 overruling of its landmark 1973 Roe v. Wade decision—alongside subsequent state-level prosecutions for abortions—provoked a proprivacy backlash now wending its way through administrations and legislatures. At the same time, though, there may be a catch. Between industry lobbying and legislative mistakes, some of the proposed or recent rules may leave room for data brokers to still profit and for buyers to still continue obtaining people’s locations without explicit consent.

At the moment, unlike in the early 1970s when the previous Supreme Court precedent was set, broad-sweeping digital tool kits are widely available. In states tightening their abortion laws and seeking to prosecute women seeking or obtaining abortions in defiance of those laws, prosecutors have access to mobile-phone location histories—currently available on the open market throughout the United States.

“I think there is increased anxiety that is being spurred in part by the overruling of Roe v. Wade,” says Alex Marthews, national chair of Restore the Fourth, a civil-society organization in Boston. “There is anxiety about residents’ browser and location information being subject to information requests in states that have essentially outlawed abortion,” he says.

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Heat Pumps—the Well-Tempered Future of A/Cs

During heat waves in Phoenix, while some people fry eggs on sidewalks, Matt Heath, a heating, ventilation, and air-conditioning (HVAC) service manager at AC by J, is on the front line, helping maintain air conditioners in people’s homes. Heath has great job security: Half of Phoenix residents are at risk of an emergency-room visit or worse if their electricity fails during a future heat wave, according to a recent study. Air-conditioning is what keeps people there comfortable—and alive—a growing fraction of the year. The extreme heat already kills hundreds of Phoenix-area residents every year, a number that went up by 25 percent from 2021 to 2022.

Phoenix is a harbinger of life in the many hot parts of the world that are getting richer, where people are demanding ever more air conditioners. This in turn exacerbates the extremes of climate change due to increased demand for fossil-fuel-intensive sources of electricity, as well as leakage of refrigerants, themselves noteworthy greenhouse gases. “Most of the growth of air-conditioning will be in other countries,” says mechanical engineer Vince Romanin, cofounder and CEO of the San Francisco–based Gradient Comfort, “and restricting access is not fair.” Instead, he and others are trying to invent new climate-control technology that doesn’t further increase the dangers facing the planet’s climate.

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CubeSat Operators Launch an IoT Space Race

A rocket carrying CubeSats launched into Earth orbit two years ago, on 22 March 2021. Two of those CubeSats represented competing approaches to bringing the Internet of Things (IoT) to space. One, operated by Lacuna Space, uses a protocol called LoRaWAN, a long-range, low-power protocol owned by Semtech. The other, owned by Sateliot, uses the narrowband IoT protocol, following in the footsteps of OQ Technology, which launched a similar IoT satellite demonstration in 2019. And separately, in late 2022, the cellular industry standard-setter 3GPP incorporated satellite-based 5G into standard cellular service with its release 17.

In other words, there is now an IoT space race.

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