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Submission + - 5G's Waveform Is a Battery Vampire (ieee.org)

schwit1 writes: In 2017, members of the mobile telephony industry group 3GPP were bickering over whether to speed the development of 5G standards. One proposal, originally put forward by Vodafone and ultimately agreed to by the rest of the group, promised to deliver 5G networks sooner by developing more aspects of 5G technology simultaneously.

Adopting that proposal may have also meant pushing some decisions down the road. One such decision concerned how 5G networks should encode wireless signals. 3GPP’s Release 15, which laid the foundation for 5G, ultimately selected orthogonal frequency-division multiplexing (OFDM), a holdover from 4G, as the encoding option.

But Release 16, expected by year’s end, will include the findings of a study group assigned to explore alternatives. Wireless standards are frequently updated, and in the next 5G release, the industry could address concerns that OFDM may draw too much power in 5G devices and base stations. That’s a problem, because 5G is expected to require far more base stations to deliver service and connect billions of mobile and IoT devices.

And Kimery notes that these concerns apply beyond 5G handsets. China Mobile has “been vocal about the power consumption of their base stations,” he says. A 5G base station is generally expected to consume roughly three times as much power as a 4G base station. And more 5G base stations are needed to cover the same area.

Comment Don't expect them to work well in L.A. (Score 2) 277

The phrase "Little old lady from Pasadena" was, after all, coined in L.A. to describe someone who basically drives like a self driving car. In Los Angeles you are either driving aggressively or you're parked. There is no moderate option. I spent about 40 years driving there and learned the basic rule is to always drive as fast as you can. That may be anywhere between 80 and 0 mph and it's subject to change at any moment. If you attempt to leave a "safe" interval between cars on a L.A. freeway you can be pretty sure someone will simply change lanes and pull into that space. And don't even think about Mexico City.

Comment Most people are just not too brite (Score 2) 465

We techie folks spend much of our lives hanging out with our peers. This tends to give us a rather warped sense of the average intelligence and rationality of the general population. The fact is that most folks just feel overwhelmed by facts and data and really don't want the responsibility of choosing their own path through life. They would rather have someone they trust tell them what to do and think. Hence the popularity of religion and autocrats. It is counterproductive to try engaging these folks in some sort of rational fact based argument. That just makes them fearful. Try to remember that they are not acting stupid in order to annoy us; they're just in over their heads.

Comment Re:A big part of the problem is... (Score 1) 281

"And you may not have noticed this, but if you let a kid question you once... it rapidly escalates until they question EVERYTHING"

But that's a good thing. Yes, it's a pain in the ass for the parents. But hey, nobody said parenthood was supposed to be simple or painless. I sometimes lament that sperm count isn't more closely related to IQ.

Comment A big part of the problem is... (Score 3, Insightful) 281

religious brainwashing early in life. Innocent children are taught that they should be unquestioningly accepting of wacky ideas just because their elders seem to believe them. Their natural scepticism is denounced as heresy.

The whole idea that anything should just be accepted as a matter of faith is a threat to democracy. Sunday school is clearly a form of child abuse. (even when it's done on Saturday)

Comment Re:Why retail? (Score 1) 298

Not correct. At least where I live my electric bill includes a separate fee that is supposed cover the effort expended to deliver the power from it's source to my home. Then on top of that I pay still more for the power itself. I understand that a regulated monopoly utility should be paid for what it does. I don't see why it should also get a retail markup on the power. This is equivalent to UPS charging their normal shipping fee and then adding a 20% markup to the price of the goods they deliver.

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