Having power issues sometimes is the "It's always DNS" equivalent in the embedded electronics world.
When we wanted to put one of our customer projects into operation, we noticed strange problems with a Quectel modem that we had not had before. Of course, from a software developer's point of view, the software was initially suspected of causing problems. But slowly a different picture emerged ...
Read the full story and learn how important it is to always consider hardware when you're having software problems (and vice versa!):
🌲 🚒 🌳 We have successfully tested our Nomadic Node set-up for temporary 5G campus networks for fighting forest fires with our partners in the ALADIN project in Brandenburg: 🎬 https://www.youtube.com/watch?v=8YI0ZMsLAnA
The #CampusOS flagship project adapted our Nomadic 5G Node for a blueprint for modular, portable campus networks. Together with industrial partners, we will be presenting the benefits of 5G campus networks for construction at HANNOVER MESSE next week.
Die Basisstation wollten @inviridi und ich heute eigentlich am Stand von Vodafone mal ansehen bzw genauer nachfragen. Leider hatten die Mitarbeiter den Stand schon fast abgebaut und waren nicht mehr anwesend. Schade!
Wir werden dem aber sicherlich weiter nachgehen. Sehr spannend!
At this year's Hannover Messe, the #CampusOS lead project, funded by the German Federal Ministry for Economic Affairs and Climate Protection, is demonstrating how a #5G campus network can be successfully set up and operated in industry.
UK folks, anybody gone #5G sim based broadband? Any opinions on #routers. Friend in a rural area has great 5G signal but dreadful Internet over the phone line and fibre is years away. What kit will work well for a family of non tech folks?
House has a games console, iPads, Netflix TV etc.
Soooo, auch wenn es mir etwas widerstrebt 1&1 (hat gerade mal eine Hand voll Antennen in München) mit Telekom, Vodafone und Telefonica zu vergleichen, so muss ich es doch tun, wenn ich hier keinen Blödsinn verbreiten möchte.
Also alle vier deutschen Mobilfunknetze unterstützen #ipv6 . https://www.thomas--schaefer.de/apn-ipv4-ipv6.html #5G
An der Freien Waldorfschule Freiburg-Rieselfeld warnte man am vergangenen Freitag vor angeblichen Strahlungs-Gefahren durch den 5G-Handystandard.
Auf der Bühne: Der radikale Mobilfunk-Gegner Jörg Gutbier, Fraktionsvorsitzender der Grünen in Herrenberg und Vorsitzender der Verschwörungsideologen-Lobbygruppe "Diagnose-Funk“.
"Diagnose Funk" ist eng mit der Anthroposophie Rudolf Steiners verbunden. Ihr Autor Ralf Lankau ist bei den NachDenkSeiten aktiv und Teil der Anthro-Lobbygruppe "ELIANT". Der Verschwörungsideologe nennt digitale Medien "Kindeswohlgefährdung".
In 2023 sprach Lankau an der Freien Waldorfschule Hitzacker.
« Rien ne nous aliène à nous-mêmes et ne nous aliène le monde plus désastreusement que de passer notre vie, désormais presque constamment, en compagnie de ces être faussement intimes, de ces esclaves fantômes que nous faisons entrer dans notre salon d’une main engourdie par le sommeil – car l’alternance du sommeil et de la veille a cédé la place à l’alternance du sommeil et de la radio – pour écouter les émissions au cours desquelles, premiers fragments du monde que nous rencontrons, ils nous parlent, nous regardent, nous chantent des chansons, nous encouragent, nous consolent et, ne nous détendant ou nous stimulant, nous donnent le la d’une journée qui ne sera pas la nôtre. Rien ne rend l’auto-aliénation plus définitive que de continuer la journée sous l’égide de ces apparents amis : car ensuite, même si l’occasion se présente d’entrer en relation avec des personnes véritables, nous préférons rester en compagnie de nos portable chums, nos copains portatifs, puisque nous ne les ressentons plus comme des ersatz d’hommes mais comme de véritables amis ».
For the people who care about #5g stuff here, apparently my phone can do pretty well on mmW. This is downtown Austin last night, on 400 MHz of AT&T n260 (38 GHz), anchored by 10 MHz of B5 LTE. Latency isn't great, but throughout is.
Two footmen dressed in white approach the vehicle as it arrives. One opens the rear door. #Guo#Ping, one of #Huawei's rotating chairmen, steps forward and extends a hand as the guest emerges.
After walking a red carpet, the two men enter the magnificent marble-floored building, ascend a stairway, and pass through French doors to a palatial ballroom.
Several hundred people arise from their chairs and clap wildly.
The guest is welcomed by Huawei's founder, #Ren#Zhengfei, whose sky-blue blazer and white khakis signify that he has attained the power to wear whatever the hell he wants.
After some serious speechifying by a procession of dark-suited executives, Ren
—who is China's Bill Gates, Lee Iacocca, and Warren Buffett rolled into one
—comes to the podium.
Three young women dressed in white uniforms enter the room, swinging their arms military style as they march to the stage, then about-face in unison as one holds out a framed #gold#medal the size of a salad plate.
Embedded with a red Baccarat crystal, it depicts the Goddess of Victory and was manufactured by the Monnaie de Paris. Ren is almost glowing as he presents the medal to the visitor.
This #honored#guest is not a world leader, a billionaire magnate, nor a war hero. He is a relatively unknown Turkish academic named #Erdal#Arıkan.
Throughout the ceremony he has been sitting stiffly, frozen in his ill-fitting suit, as if he were an ordinary theatergoer suddenly thrust into the leading role on a Broadway stage.
Arıkan isn't exactly ordinary.
Ten years earlier, he'd made a major discovery in the field of information theory.
Huawei then plucked his theoretical breakthrough from academic obscurity and, with large investments and top engineering talent, fashioned it into something of value in the realm of commerce.
The company then muscled and negotiated to get that innovation into something so big it could not be denied:
the basic #5G#technology now being rolled out all over the world.
Huawei's rise over the past 30 years has been heralded in China as a triumph of smarts, sweat, and grit. Perhaps no company is more beloved at home
—and more vilified by the United States.
That's at least in part because Huawei's ascent also bears the fingerprints of China's nationalistic industrial policy and an alleged penchant for intellectual property theft;
the US Department of Justice has charged the company with a sweeping conspiracy of misappropriation, infringement, obstruction, and lies.
As of press time, Ren Zhengfei's #daughter was under house arrest in Vancouver, fighting extradition to the US for allegedly violating a ban against trading with Iran.
The US government has banned Huawei's 5G products and has been lobbying other countries to do the same. Huawei denies the charges; Ren calls them political.
Huawei is settling the score in its own way. One of the world's great technology powers, it nonetheless suffers from an inferiority complex.
Despite spending billions on research and science, it can't get the respect and recognition of its Western peers. Much like China itself.
So when Ren handed the solid-gold medal
—crafted by the French mint!
—to Erdal Arıkan, he was sticking his thumb in their eye.
ERDAL ARIKAN WAS born in 1958 and grew up in Western Turkey, the son of a doctor and a homemaker.
He loved science.
When he was a teenager, his father remarked that, in his profession, two plus two did not always equal four.
This fuzziness disturbed young Erdal; he decided against a career in medicine. He found comfort in engineering and the certainty of its mathematical outcomes.
“I like things that have some precision,” he says. “You do calculations and things turn out as you calculate it.”
Arıkan entered the electrical engineering program at Middle East Technical University. But in 1977, partway through his first year, the country was gripped by political violence, and students boycotted the university.
Arıkan wanted to study, and because of his excellent test scores he managed to transfer to #CalTech, one of the world's top science-oriented institutions, in Pasadena, California.
He found the US to be a strange and wonderful country. Within his first few days, he was in an orientation session addressed by legendary physicist #Richard#Feynman. It was like being blessed by a saint.
The field was still young, launched in 1948 by #Claude#Shannon, who wrote its seminal paper while he was at Bell Labs;
he would later become a revered MIT professor.
Shannon's achievement was to understand how the hitherto fuzzy concept of information could be quantified, creating a discipline that expanded the view of communication and data storage.
By publishing a general mathematical theory of information
—almost as if Einstein had invented physics and come up with relativity in one swoop
—Shannon set a foundation for the internet, mobile communications, and everything else in the digital age.
The subject fascinated Arıkan, who chose #MIT for graduate studies.
There was one reason: “#Bob#Gallager was there,” he says.
Robert Gallager had written the textbook on information theory. He had also been mentored by Shannon's successor.
In the metrics of the field, that put him two steps from God.
“So I said, if I am going to do information theory,” Arıkan says, “MIT is the place to go.”
By the time Arıkan arrived at MIT, in 1981, Gallager had shifted his focus and was concentrating on how data networks operated.
Arıkan was trembling when he went to Gallager's office for the first time. The professor gave him a paper about packet radio networks.
“I was pushing him to move from strict information theory to looking at network problems,” Gallager says.
“It was becoming very obvious to everyone that sending data from one place to another was not the whole story
—you really had to have a system.”
It had failed to adapt, disappointed its customers, and was ill-prepared to respond to new Chinese competition.
And there was that hack.
Huawei seized the moment.
Nortel's most valuable asset was the unmatched talent in its Ottawa research lab, known as the Canadian equivalent of the legendary Bell Labs.
For years, Huawei had been building up its research capacity, trying to shed its reputation as a low-cost provider whose tech came from purloining the discoveries of others. It had a number of R&D labs around the world.
Now, with Nortel's demise, it could pursue a bigger prize than market share:
technical mastery. And respect.
The head of research at Nortel's lab in Ottawa, #Wen#Tong, grew up in China and joined Nortel's wireless lab in 1995 after earning a doctorate at Concordia University in Montreal.
He had contributed to every generation of mobile technology and held 470 patents in the US.
If telecommunications companies staged a research scientist draft in 2009, Wen Tong would have been a first-round pick.
Now he was a free agent, and Google, Intel, and others courted him.
Tong picked Huawei. He wanted to keep his networking scientists together, and the team didn't want to leave Canada.
The Chinese company was happy to recruit the group and let them stay in place.
Huawei also promised them freedom to attack the signature challenge for networking science in the 21st century:
creating the infrastructure for #5G.
In this iteration of mobile platforms, billions of mobile devices would seamlessly connect to networks. It promised to transform the world in ways even the scientists could not imagine, and it would mean vast fortunes for those who produced the technology.
The race for #patents would be intense, a matter not only of profit but also national pride.
Not long after Tong joined Huawei, in 2009, a research paper came to his attention.
Tong had helped produce the technology that provided the radio-transmission error correction for the current standard, known as turbo codes.
He thought the polar codes concept could be its replacement in 5G.
But the obstacles were considerable, and Tong originally couldn't interest his Canadian researchers in attacking the problem.
Then, in 2012, Huawei asked Tong to restructure its communications lab in China.
He took the opportunity to assign several smart young engineers to work on polar codes.
It involved the none-too-certain process of taking a mathematical theory and making it actually work in practical design, but they made progress and the team grew.
With each innovation, Huawei rushed to the patent office.
In 2013, Wen Tong asked Huawei's investment board for $600 million for 5G research.
“Very simple,” Tong says. “20 minutes, and they decided.”
The answer was yes, and a good deal of that money went into polar codes.
After Huawei came up with software that implemented the theory, the work shifted to testing and iterating. Eventually hundreds of engineers were involved.
Tong was not the only information scientist who had seen Arıkan's paper. #Alexander#Vardy of the Jacobs School of Engineering at UC San Diego says the paper achieved “something that people were trying to do for 60 years.”
The challenge was that polar codes were not suited for 5G's short blocklengths
—the amount of 0s and 1s strung together.
Vardy and his postdoc, #Ido#Tal of the #Technion-Israel Institute of Technology, modified the error-correcting technology so it outperformed other state-of-the-art codes when applied to 5G's short blocklengths.
Vardy says he presented his findings in a conference in 2011.
“Huawei was there in the audience, and right after that they ran with it,” he says, seemingly without rancor.
(UC San Diego owns Vardy and Tal's patent and has licensed it to Samsung on a nonexclusive basis.)
Today Huawei holds more than two-thirds of the polar code patent “families”
—10 times as many as its nearest competitor.
The general feeling in the field, Vardy said, was that Huawei “invested a lot of research time and effort into developing this idea.”
It seemed “all the other companies were at least a few years behind.”
But all that work and all those patents would be wasted if the technology didn't fit into the 5G platform.
“It has to be adopted by everybody,” Tong says.
“You have to convince the entire industry that this is good for 5G.”
If polar codes were to be the symbol of Huawei's superiority, there was one more hurdle:
“I had the responsibility,” Wen Tong says, “to make it a standard.”
In 2009, a Turkish graduate of the California Institute of Technology and the Massachusetts Institute of Technology, #Erdal#Arikan, published a paper that solved a fundamental problem in information theory, allowing for much faster and more accurate data transfers.
Unable to get an academic appointment or funding to work on this seemingly esoteric problem in the United States, he returned to his home country.
As a foreign citizen, he would have had to find a U.S. employer interested in his project to be able to stay.
Back in Turkey, Arikan turned to #China.
It turned out that Arikan’s insight was the breakthrough needed to leap from 4G telecommunications networks to much faster #5G mobile internet services.
Four years later, China’s national telecommunications champion, #Huawei, was using Arikan’s discovery to invent some of the first 5G technologies.
Today, Huawei holds over two-thirds of the #patents related to Arikan’s solution
—10 times more than its nearest competitor.
And while Huawei has produced one-third of the 5G infrastructure now operating around the world, 💥the United States does not have a single major company competing in this race. 💥
Had the United States been able to retain Arikan
—simply by allowing him to stay in the country instead of making his visa contingent on immediately finding a sponsor for his work
—this history might well have been different.
In a twist of irony, US immigration policies have left China with the upper hand in 5G technology. Who knew denying a Caltech and MIT graduate a visa renewal could be such a game-changer?