Showing posts with label T-Mobile USA. Show all posts
Showing posts with label T-Mobile USA. Show all posts

Thursday, 12 July 2018

Minimum Bandwidth Requirement for 5G Non-Standalone (NSA) Deployment

I was attending the IEEE 5G World Forum live-stream, courtesy of IEEE Tv and happen to hear Egil Gronstad, Senior Director of Technology Development and Strategy at T-Mobile USA. He said that they will be building a nationwide 5G network that will initially be based on 600 MHz band.


During the Q&A, Egil mentioned that because of the way the USA has different markets, on average they have 31 MHz of 600 MHz (Band 71). The minimum is 20 MHz and the maximum is 50 MHz.

So I started wondering how would they launch 4G & 5G in the same band for nationwide coverage? They have a good video on their 5G vision but that is of course probably going to come few years down the line.

In simple terms, they will first deploy what is known as Option 3 or EN-DC. If you want a quick refresher on different options, you may want to jump to my tutorial on this topic at 3G4G here.

The Master Node (recall dual connectivity for LTE, Release-12. See here) is an eNodeB. As with any LTE node, it can take bandwidths from 1.4 MHz to 20 MHz. So the minimum bandwidth for LTE node is 1.4 MHz.

The Secondary Node is a gNodeB. Looking at 3GPP TS 38.101-1, Table 5.3.5-1 Channel bandwidths for each NR band, I can see that for band 71


NR band / SCS / UE Channel bandwidth
NR Band
SCS
kHz
5 MHz
101,2 MHz
152 MHz
202 MHz
252 MHz
30 MHz
40 MHz
50 MHz
60 MHz
80 MHz
90 MHz
100 MHz
n71
15
Yes
Yes
Yes
Yes








30

Yes
Yes
Yes








60













The minimum bandwidth is 5MHz. Of course this is paired spectrum for FDD band but the point I am making here is that you need just 6.4 MHz minimum to be able to support the Non-Standalone 5G option.

I am sure you can guess that the speeds will not really be 5G speeds with this amount of bandwidth but I am looking forward to all these kind of complaints in the initial phase of 5G network rollout.

I dont know what bandwidths T-Mobile will be using but we will see at least 10MHz of NR in case where the total spectrum is 20 MHz and 20 MHz of NR where the total spectrum is 50 MHz.

If you look at the earlier requirements list, the number being thrown about for bandwidth was 100 MHz for below 6 GHz and up to 1 GHz bandwidth for spectrum above 6 GHz. Don't think there was a hard and fast requirement though.

Happy to hear your thoughts.

Tuesday, 3 April 2018

Some interesting April Fools' Day 2018 Technology Jokes

This year April Fools' Day wasn't as fun as the last one. Couple of reasons being that it was on a Sunday and it coincided with Easter Sunday. Here are some of the jokes that I found interesting.

Sprint's Magic Ball:

It was good to see that the US mobile operator joined the party this year. Their magicball (based on their highly successful Magic Box) advert was really good. Here is the video:



Good to see that they managed to squeeze in references to 5G and small cells

Official site: http://newsroom.sprint.com/sprint-magic-ball.htm


T-Mobile Sidekicks Re-booted:


T-Mobile USA has consistently come up with the best tech pranks. Last year they had the OneSie with Human HotSpot and BingeOnUp the year before. This year the re-booted sidekicks was the joke of the day. The video is embedded below. As the description says, T-Mobile’s Sidekick gets a remake! Inspired by the past but stepping boldly into the future, it has revolutionary AI, headphones that double as chargers, personalized GPS guidance by John Legere, and more!



Official site: https://www.t-mobile.com/offers/sidekicks


The Chegg Osmosis Pillow:


"A top-secret team of Chegg engineers from Zurich spent two years developing a new patent-pending revolutionary proprietary method of making memory foam using special blends of matcha and lavender. Thanks to their discoveries, Chegg’s memory foam actually improves your memory. Got a final exam tomorrow? Sleep on it. Got a lab report due? Sleep on it. Need to outline your entire thesis? Sleep on it."

Official Website: https://www.chegg.com/play/memory-foam-pillow/


Pindrop TonguePrinting:


"Tongueprinting technology analyzes thousands of tiny bumps called papillae, as well as factors such as shape, size, and temperature to accurately identify yourself by licking your phone. This technology will be the mouthpiece of Pindrop’s latest authentication and anti-fraud solutions." Video:


Official website: https://www.pindrop.com/resources/video/video/tongueprinting/


Roku Happy Streaming Socks: "Do messy snack hands keep you from using your Roku remote? Meet the new Roku Happy Streaming Socks with built-in motion sensors, plus toe-toasting and anti-loss technology."


Official Website: https://blog.roku.com/roku-happy-streaming-socks


The other jokes were, well, not very funny but here are some worth mentioning...

Virgin Voyages Wa-Fi: "Here at Virgin Voyages we are excited to be bringing underwater WiFi, or as we call it “Wa-Fi” service, to all Virgin Voyages ships." Website: https://www.virginvoyages.com/wa-fi.html

Logitech BS Detection Software: "Today, I’m proud to announce that we are taking video calls to a whole new level with the introduction of Logitech Business Speak (BS) Detection software. Logitech BS Detection revolutionizes our meeting capabilities with built-in artificial intelligence (AI) that flags the…well…BS in business communications. "

Website: https://blog.logitech.com/2018/03/30/logitech-revolutionizes-business-communication-with-the-introduction-of-business-speak-detection-software/

Josh Ultra by Josh.Aihttps://www.cepro.com/article/josh.ai_josh_ultra_premium_voice_control

Jabra Sneakershttps://www.jabra.com/jabra-sneakers


Genetic Select by Lexus: Introducing Genetic Select by Lexus in partnership with 23andMe. The world’s first service that uses human genetics to match you with the car of your genes. http://www.lexus.com/geneticselect/

Google Maps is adding a Where’s Waldo? mini-game for the next week: Link.

Google Japan's Gboardhttps://japan.googleblog.com/2018/04/tegaki.html

Google Cloud Hummus API - Find your Hummus!: https://www.youtube.com/watch?v=0_5X6N6DHyk

Tech21 Flexichoc casehttps://twitter.com/Tech21Official/status/979392283106824192

Audi Downsizing Assistanthttps://twitter.com/AudiOfficial/status/979991696657203201

Lego VacuSorthttps://twitter.com/LEGO_Group/status/980369210789507072

Did I miss any good ones?


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Saturday, 1 April 2017

Some interesting April Fools' Day 2017 Technology Jokes

Here are the interesting April Fools' Day 2017 Technology Jokes. If I have missed one, please add them in comments. For those who don't know what April Fools' Day means, see here.

Google Windmill from Google Nederland: Interesting use of Wind and Cloud to keep Rain away.




Amazon Petlexa (Alexa for Pets): It allows dogs, cats, and other animals to communicate with Alexa just like you do. The Petlexa feature gives pets the freedom to place orders from Amazon, and to activate smart home enabled toys.




Google Play for Pets: A new category of games, apps and training tools to keep your pet stimulated. Honestly, I cant see why this cannot be real.



Honda Horn Emoji's: Horn Emojis offer a range of horn sounds for a variety of scenarios, from seeing your kids off to school to commiserating with other drivers in rush-hour traffic.


See video here. Honda has also launched In-car dating app to help lonely drivers find love at the wheel. More details here.


T-Mobile ONEsie: T-Mobile CEO John Legere has designed this Onesie and CTO Neville Ray has also participated in testing. Its got a lot of Amazing properties, including creating Human SotSpots.


See videos here and here.


Virgin Atlantic Dreambird 1417: World’s first-ever aircraft using new patented technology – flapology – to create the world’s first aircraft with flappable wings.




Virgin Trains (UK) Tickink: Innovative new contactless ticket system, offering customers the opportunity to have their train ticket permanently tattooed on their body, preventing frequent passengers from ever losing their tickets again. Details here.


Virgin Mobile Australia PhoYo:


Prysm Avatar: I quite like this concept. A work drone that enables you to reap the benefits of working from home, without sacrificing the interpersonal advantages of being in the office. Each drone is equipped with sophisticated sensors and a holographic projector that displays your likeness as a realistic, life-sized avatar.




Telenor prohibits the word ‘Digital’ in all communication: There is a small chance this may be true ;-). See here.


Finally, there was also Google Gnome (like Google home), Google Ms. Pac-ManLexus LC: Lane ValetShake Me - by Trade Me, Huawei Mate 9.2 with 2 headphone jacks


There is also this picture from 1992 circulating, showing how standards body (ETSI) celebrated April Fools' before twitter/youtube :-)


Related Posts:

Monday, 16 January 2017

Gigabit LTE?


Last year Qualcomm announced the X16 LTE modem that was capable of up to 1Gbps, category 16 in DL and Cat 13 (150 Mbps) in UL. See my last post on UE categories here.


Early January, it announced Snapdragon 835 at CES that looks impressive. Android central says "On the connectivity side of things, there's the Snapdragon X16 LTE modem, which enables Category 16 LTE download speeds that go up to one gigabit per second. For uploads, there's a Category 13 modem that lets you upload at 150MB/sec. For Wi-Fi, Qualcomm is offering an integrated 2x2 802.11ac Wave-2 solution along with an 802.11ad multi-gigabit Wi-Fi module that tops out at 4.6Gb/sec. The 835 will consume up to 60% less power while on Wi-Fi."

Technology purists would know that LTE, which is widely referred to as 4G, was in fact pre-4G or as some preferred to call it, 3.9G. New UE categories were introduced in Rel-10 to make LTE into LTE-Advanced with top speeds of 3Gbps. This way, the ITU requirements for a technology to be considered 4G (IMT-Advanced) was satisfied.


LTE-A was already Gigabit capable in theory but in practice we had been seeing peak speeds of up to 600Mbps until recently. With this off my chest, lets look at what announcements are being made. Before that, you may want to revisit what 4.5G or LTE-Advanced Pro is here.

  • Qualcomm, Telstra, Ericsson and NETGEAR Announce World’s First Gigabit Class LTE Mobile Device and Gigabit-Ready Network. Gigabit Class LTE download speeds are achieved through a combination of 3x carrier aggregation, 4x4 MIMO on two aggregated carriers plus 2x2 MIMO on the third carrier, and 256-QAM higher order modulation. 
  • TIM in Italy is the first in Europe to launch 4.5G up to 500 Mbps in Rome, Palermo and Sanremo
  • Telenet in partnership with ZTE have achieved a download speed of 1.3 Gbps during a demonstration of the ZTE 4.5G new technology. That's four times faster than 4G's maximum download speed. Telenet is the first in Europe to reach this speed in real-life circumstances. 4.5G ZTE technology uses 4x4 MIMO beaming, 3-carrier aggregation, and a QAM 256 modulation.
  • AT&T said, "The continued deployment of our 4G LTE-Advanced network remains essential to laying the foundation for our evolution to 5G. In fact, we expect to begin reaching peak theoretical speeds of up to 1 Gbps at some cell sites in 2017. We will continue to densify our wireless network this year through the deployment of small cells and the use of technologies like carrier aggregation, which increases peak data speeds. We’re currently deploying three-way carrier aggregation in select areas, and plan to introduce four-way carrier aggregation as well as LTE-License Assisted Access (LAA) this year."
  • T-Mobile USA nearly reached a Gigabit and here is what they say, "we reached nearly 1 Gbps (979 Mbps) on our LTE network in our lab thanks to a combination of three carrier aggregation, 4x4 MIMO and 256 QAM (and an un-released handset)."
  • The other US operator Sprint expects to unveil some of its work with 256-QAM and massive MIMO on Sprint’s licensed spectrum that pushes the 1 gbps speed boundary. It’s unclear whether this will include an actual deployment of the technology

So we are going to see a lot of higher speed LTE this year and yes we can call it Gigabit LTE but lets not forget that the criteria for a technology to be real '4G' was that it should be able to do 1Gbps in both DL and UL. Sadly, the UL part is still not going Gigabit anytime soon.

Saturday, 2 April 2016

Some interesting April Fools' Day 2016 Technology Jokes

When I posted April Fools' jokes on the blog last couple of years (see 2014 & 2015) , they seem to be very popular so I thought its worth posting them this year too. If I missed any interesting ones, please add in comments.


The one I really liked best is the Samsung Internet of Trousers (IoT) featuring:

Wi-Fly: Gone are the days of unnoticed, unzipped trouser zippers upon exiting the restroom. Should your fly remain open for more than three minutes, the ZipARTIK module will send a series of notifications to your smartphone to save you from further embarrassment.

Get Up! Alert: Using pressure sensors, Samsung’s intelligent trousers detect prolonged periods of inactivity and send notifications to ‘get up off of that thing’ at least once an hour. Should you remain seated for more than three hours, devices embedded in each of the rear pockets send mild electrical shocks to provide extra motivation.

Keep-Your-Pants-On Mode: Sometimes it’s easy to get carried away with the moment. The Samsung Bio-Processor in your pants checks your bio-data including your heart rate and perspiration level. If these indicators get too high, Samsung’s trousers will send you subtle notifications as a reminder of the importance of keeping your cool.

Fridge Lock: If the tension around your waist gets too high, the embedded ARTIK chip module will send signals to your refrigerator to prevent you from overeating. The fridge door lock can then only be deactivated with consent from a designated person such as your mother or significant other.



Microsoft has an MS-DOS mobile in mind for this day. I wont be surprised if a real product like this does become popular with older generation. I personally wouldn't mind an MS-DOS app on my mobile. Here is a video:




It would have been strange if we didnt have a Robot for a joke. Domino's have introduced the Domimaker. Here's how it works:




T-Mobile USA is not shy pulling punches on its rivals with the Binge On data plan where it lets people view certain video channels without using up their data. Here is the video and more details on mashable.



Samsung ExoKinetic helps your phone self-charge

Google had quite a few pranks as always. I will ignore 'mic drop' which backfired and caused them headache.

Google Express has a new delivery mechanism, just for the April Fool's day. (There has to be one drone idea)





Google Cardboard Plastic is an interesting one too. Here is the video:


Finally, its the Google Fiber Teleportation.



Other interesting ones: