Technologies

AT&T Is Using an Advanced Video Game Feature to Improve Your Phone Coverage

«Whatever Nvidia is doing for games, whatever Disney is doing … we are doing at a much bigger scale,» said AT&T’s Velin Kounev about using ray tracing to improve its network.

When you think of cellular networks, you probably envision radio towers and invisible data streams. But AT&T, by necessity, needs to see everything in between: buildings, trees and the multitude of obstacles that can interfere with wireless signals getting to your phone.

The cellular provider is turning to a key technology from gaming and computer graphics to get an accurate picture. AT&T Wireless Geo Modeler is a new system that uses ray tracing and AI to generate detailed representations of the areas covered by its network and improve connectivity. In doing so, AT&T says it can react to service interruptions quickly and also better predict how its network can be configured in response to large social events or during natural disasters.

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How ray tracing works in a cellular context

In computer graphics, ray tracing is a technique for rendering three-dimensional scenes. Software simulates light beams emanating from a virtual camera and calculates how the light affects objects and materials in the scene. Ray tracing is notable for rendering shadows and reflections, leading to more realistic-looking environments.

In the past, ray tracing was computationally challenging. Early examples, such as the original Toy Story movie, required rooms full of processing hardware and up to 24 hours to render a single frame of footage. The graphics processor in high-end smartphones can now render photorealistic, ray-traced scenes in games in real time.

According to Velin Kounev, lead inventive scientist at AT&T Labs, the technology’s cellular application works the same way. «Whatever Nvidia is doing for games, whatever Disney is doing… we are doing at a much bigger scale,» he said.

In the context of AT&T’s Geo Modeler, Kounev explained, radio propagation from cellular towers is high-frequency light that our eyes cannot see. The towers measure how the rays react to the surrounding environment, such as colliding with structures or reflecting off surfaces. That collected data is processed and analyzed by several internal AT&T systems and machine learning models to determine if changes or optimizations need to be made, in what AT&T calls «near scale time.»

Those changes can include everyday adjustments to the angle of nearby antennas or compensating for a tower that has gone offline during a natural disaster. Modifications can be deployed automatically in seconds or minutes, ideally in a way that doesn’t impact customers.

«We don’t want [customers] to notice,» said Jennifer Yates, assistant vice president of inventive science, network and service automation at AT&T Labs. «The network is self-healing [and] autonomous behind the scenes so they don’t have to think about it.»

The benefit can also be a technical challenge that you would never notice as an AT&T subscriber. «When you hit Lincoln Tunnel traffic at 5 o’clock in the afternoon and you can get your website loaded, that’s when we come in,» said Kounev. «We’re optimizing the network traffic … in rush hour, where you’re able to get your connection.»

Predicting where to deploy resources

Although day-to-day network optimization is one advantage of using the Geo Modeler, it’s also a tool for determining how and where the company should deploy resources during situations such as weather events. For instance, if a prominent tree is blown over during a storm, ray tracing can quickly build a new representation of how towers should compensate.

For large events like music festivals, where tens of thousands of phones are accessing the network or impending natural disasters, the technology can be used to predict upcoming changes that are needed; Kounev mentioned Geo Modeler was applied in April at the Coachella festival.

Kounev also explained that if a hurricane is coming, for example, knowing its estimated size and timing, «we can go in and within two minutes remove [within the model] the towers that we think are going to be affected, and then see what the network coverage is going to look like.» Knowing where to expect holes in the network allows AT&T to position resources, such as generators or mobile cellular towers, in place before the hurricane strikes.

Most predictive tools, said Kounev, rely on existing measurement data. «Because we use ray tracing, we can predict in places where there’s no measurement data.»

AT&T has been building the Geo Modeler for a year and has accumulated enough data from different use cases over that time to be confident about deploying it more broadly. Yates said that AT&T has performed extensive validation of data, comparing the modeler’s results with measurements in the field.

«Over the last year,» said Kounev, «we had to convince people that this thing can actually work in real time with the many tower stations they have.»

Technologies

Today’s NYT Strands Hints, Answers and Help for Feb. 7 #706

Here are hints and answers for the NYT Strands puzzle for Feb. 7, No. 706.

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.

Today’s NYT Strands puzzle is especially tricky, as a variety of words could fit the theme. Some of the answers are difficult to unscramble, so if you need hints and answers, read on.

I go into depth about the rules for Strands in this story.

If you’re looking for today’s Wordle, Connections and Mini Crossword answers, you can visit CNET’s NYT puzzle hints page.

Read more: NYT Connections Turns 1: These Are the 5 Toughest Puzzles So Far

Hint for today’s Strands puzzle

Today’s Strands theme is: Boo-o-o-o-ring

If that doesn’t help you, here’s a clue: Zzzz… not very exciting.

Clue words to unlock in-game hints

Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:

HIND, DATE, DRUM, MOST, CHIN, PAIN, RAIN, NOSE, TOME, TOMES

Answers for today’s Strands puzzle

These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:

DULL, DREARY, HUMDRUM, MUNDANE, TIRESOME

Today’s Strands spangram

Today’s Strands spangram is WATCHINGPAINTDRY. To find it, start with the W that’s three letters up from the bottom on the far-left row, and wind up, across and down.

Toughest Strands puzzles

Here are some of the Strands topics I’ve found to be the toughest.

#1: Dated slang. Maybe you didn’t even use this lingo when it was cool. Toughest word: PHAT.

#2: Thar she blows! I guess marine biologists might ace this one. Toughest word: BALEEN or RIGHT.

#3: Off the hook. Again, it helps to know a lot about sea creatures. Sorry, Charlie. Toughest word: BIGEYE or SKIPJACK.

Technologies

Spotify Launches ‘About the Song’ Beta to Reveal Stories Behind the Music

The stories are told on swipeable cards as you listen to the song.

Did you know Chappell Roan drew inspiration for her hit song Pink Pony Club from The Pink Cadillac, the name of a hot-pink strip club in her Missouri hometown? Or that Fountains of Wayne’s song Stacy’s Mom was inspired by a confessed crush a friend had on the late co-founder Adam Schlesinger’s grandmother?

If you’re a fan of knowing juicy little tidbits about popular songs, you might find more trivia in About the Song, a new feature from streaming giant Spotify that’s kind of like the old VH1 show Pop-Up Video.

About the Song is available in the US, UK, New Zealand and Australia, initially for Spotify Premium members only. It’s only on certain songs, but it will likely keep rolling out to more music. Music facts are sourced from a variety of websites and summarized by AI, and appear below the song’s lyrics when you’re playing a particular song.

«Music fans know the feeling: A song stops you in your tracks, and you immediately want to know more. What inspired it, and what’s the meaning behind it? We believe that understanding the craft and context behind a song can deepen your connection to the music you love,» Spotify wrote in a blog post.

While this version of the feature is new, it’s not the first time Spotify has featured fun facts about the music it plays. The streaming giant partnered with Genius a decade ago for Behind the Lyrics, which included themed playlists with factoids and trivia about each song. Spotify kept this up for a few years before canceling due to multiple controversies, including Paramore’s Hayley Williams blasting Genius for using inaccurate and outdated information.

Spotify soon started testing its Storyline feature, which featured fun facts about songs in a limited capacity for some users, but was never released as a central feature.

About the Song is the latest in a long string of announcements from Spotify, including a Page Match feature that lets you seamlessly switch to an audiobook from a physical book, and an AI tool that creates playlists for you. Spotify also recently announced that it’ll start selling physical books.

How to use About the Song

If you’re a Spotify Premium user, the feature should be available the next time you listen to music on the app.

Start listening to any supported song.
Scroll down past the lyrics preview box to the About the Song box.
Swipe left and right to see more facts about the song.

I tried this with a few tracks, and was pleased to learn that it doesn’t just work for the most recent hits. Spotify’s card for Metallica’s 1986 song Master of Puppets notes the song’s surge in popularity after its cameo in a 2022 episode of Stranger Things. The second card discusses the band’s album art for Master of Puppets and how it was conceptualized.

To see how far support for the feature really went, I looked up a few tracks from off the beaten path, like NoFX’s The Decline and Ice Nine Kills’ Thank God It’s Friday. Spotify supported every track I personally checked.

There does appear to be a limit to the depth of the fun facts, which makes sense since not every song has a complicated story. For those songs, Spotify defaults to trivia about the album that features the music or an AI summary of the lyrics and what they might mean.

Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for Feb. 7, #502

Here are hints and the answers for the NYT Connections: Sports Edition puzzle for Feb. 7, No. 502.

Looking for the most recent regular Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles.

Today’s Connections: Sports Edition features a fun batch of categories. The purple one requires you to find hidden words inside some of the grid words, but they’re not too obscure. If you’re struggling with today’s puzzle but still want to solve it, read on for hints and the answers.

Connections: Sports Edition is published by The Athletic, the subscription-based sports journalism site owned by The Times. It doesn’t appear in the NYT Games app, but it does in The Athletic’s own app. Or you can play it for free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Golden Gate.

Green group hint: It’s «Shotime!»

Blue group hint: Same first name.

Purple group hint: Tweak a team name.