Lmst

Mavenir and Terrestar make first NB-IoT call in NTN mode https://iottechnews.com/news/mavenir-and-terrestar-first-nb-iot-call-ntn-mode/ #mavenir #terrestar #nbiot #telecoms #connectivity #iot #tech #news #technology

@heiseonline Das klingt auch nach einem Fortschritt für die Nutzung von #NBIoT im Umfeld von Bahnstrecken und Bahnhöfen - denn das lag gerne in eben jenen Randfrequenzen. Auch wenn ich #LoRaWAN trotzdem persönlich lieber mag (aber beides hat seine Anwendungsfälle)

2G и 4G с нами надолго: обзор основных архитектур сетей операторов связи

Привет, Хабр! На связи Михаил Бухтеев, ведущий технический менеджер продукта в YADRO. Я отвечаю за планирование функционала базовой станции LTE. В статье я расскажу об устройстве сетей сотовых операторов в России, которые обеспечивают работу более 260 млн активных SIM-карт. Мобильные сети — это не просто «связь», а сложная экосистема, которая помогает десяткам миллионов людей быть онлайн. 2G, 3G, 4G, а скоро и 5G — каждое поколение выполняет свою задачу. Давайте разберемся, как операторы управляют этим технологическим коктейлем, узнаем, почему 3G уходит в прошлое, а 2G остается с нами надолго. Также поговорим о преимуществах сетей пятого поколения.

https://habr.com/ru/companies/yadro/articles/881320/

#2G #3G #4G #5G #сотовая_связь #LTE #handover #HSPA #IoT #nbiot

This week we worked out that EE now (it was announced last year, not sure when it got turned on) has an NB-IoT network.

We noticed because it decides to start dropping UDP packets after about 120KB of transfer, which is about 41% of the way through downloading a new firmware version.

Turns out the devices we thought were in poor network coverage and wouldn't update over the air had just chosen the EE network rather than the Vodafone one...

#IoT #NBIoT #weeknotes

Mavenir and Terrestar achieve live satellite NB-IoT sessions https://iottechnews.com/news/mavenir-and-terrestar-live-satellite-nb-iot-sessions/ #mavenir #terrestar #satellites #nbiot #space #connectivity #networks #iot #tech #news #technology

European Investment Bank loans €30M to Sateliot https://iottechnews.com/news/european-investment-bank-loans-30m-sateliot/ #sateliot #eib #satellites #europe #5g #nbiot #connectivity #eu #networks #iot #space #tech #news #technology

Eseye and Sateliot deliver global satellite IoT connectivity https://iottechnews.com/news/eseye-and-sateliot-deliver-global-satellite-iot-connectivity/ #eseye #sateliot #lpwan #5g #nbiot #space #connectivity #iot #satellites #tech #news #technology

Sateliot expands 5G NB-IoT satellite constellation https://iottechnews.com/news/sateliot-expands-5g-nb-iot-satellite-constellation/ #sateliot #5g #nbiot #satellites #networks #connectivity #space #telecoms #iot #tech #news #technology

Hat hier wer Erfahrungen mit NB-IoT und/oder LTE-M für privaten Bastelkram? Ich würde dem Wohnmobil gern mikrocontrollergestützt etwas Telemetrie verpassen. Wichtig sind mir vor allem:

• okaye Kosten (Hardware & Betrieb)
• verwendbar als Privatperson, für ein einzelnes Gerät, nicht ne ganze Sensorflotte
• gute Netzabdeckung in DE & EU ohne zusätzliche Roamingkosten
• Modem entweder mit brauchbarer Doku oder existierendem MicroPython-Treiber (eingebautes MQTT nehm ich auch)

#IoT #NBIoT #LTEM

NB-IoT and LoRa dominate the LPWAN IoT market https://www.iottechnews.com/news/2024/jun/19/nb-iot-and-lora-dominate-lpwan-iot-market/ #iot #lora #nbiot #lpwan #connectivity #tech #news #technology

Хватит ли места на рынке D2D после прихода SpaceX?

В марте 2024 года регулятор FCC согласовал нормативно-правовую базу для сервиса прямого спутникового доступа (Direct-to-Device, D2D) в США. SpaceX, использующий на правах сублизинга частоты сотового оператора T-Mobile, будут иметь вторичный приоритет. Такое правило закреплено в п. 4.4 Регламента радиосвязи ITU (non-protected/non-interference basis) — не создавать помех приоритетным сервисам, которым частоты в диапазоне были выделены ранее. Однако США стали первой страной, применившей его для D2D. Вероятно, вскоре их примеру последуют и другие страны. Использование сотовых частот даёт возможность подключить обычные устройства. Сначала это будут сообщения/сигнал SOS с координатами, потом добавится голос, а затем и передача данных на скоростях 2-4 Мбит/с. Пока D2D воспринимается как премиальный сервис (Apple iPhone и флагманы Huawei). Но приоритетным для него будут наименее развитые страны Африки и Азии, где на «границе сети» живут оставшиеся полмиллиарда абонентов, нуждающиеся в базовых услугах. И на этом рынке уже тесно и без SpaceX.

https://habr.com/ru/companies/ruvds/articles/804127/

#ruvds_статьи #spacex #d2d #илон_маск #starlink #ast_spacemobile #Link_global #iridium #qualcomm #gsma #5g #спутниковая_связь #iot #nbiot #lorawan

My open source #cellular #iot module, called Walter, is finally live on Crowd Supply https://www.crowdsupply.com/dptechnics/walter. Walter is an #LTE-M, #NBIoT, #GPS, #WiFi and #Bluetooth module that is fully certified (CE, UKCA, FCC, IC, RCM). We have created fully open source libraries for ESP-IDF, #Arduino, #micropython and Toit. I would love for you to have a look at my project page and join me in the exciting world of cellular IoT by backing the Walter campaign!

BT launches NB-IoT network to support UK smart cities https://www.iottechnews.com/news/2024/feb/22/bt-launches-nb-iot-network-support-uk-smart-cities/ #bt #iot #nbiot #ee #telecoms #connectivity #networks #uk #smartcities #tech #news #technology

Over the past few days, we have been working with the Waveshare SIM7070G Cat-M/NB-IoT/GPRS HAT for the Raspberry Pi and have put it into operation. In the process, we have noticed incomplete documentation and other pitfalls at various points that we do not want to leave unmentioned.

The result: a relatively detailed blog post about our commissioning. We published the post in the hope that it might be helpful to others.

"Connecting a Raspberry Pi to the Internet with Waveshare NB-IoT HAT / Simcom SIM7070G modem" by @thomas

https://blog.zero-iee.com/en/posts/nb-iot-internet-connection-with-simcom-sim7070g-modem/

#NBIoT #iot #internet #electronics #waveshare #raspberry #raspi #raspberryPi #mobileNetwork #cellular

Just resolved a nasty timing issue regarding AT-commands and serial auto-baud config on our SIM7070 NB-IoT module. Phew! 😅

The MB-IoT module talks to our system via a serial interface using AT commands. Our PPP daemon for the mobile data connection needs to send various AT commands (using ChatScript), but communication didn't work in the first place.

Well - it worked when using the serial-to-USB converter, but it did not work via the native serial connection. The datasheet mentions that by default "auto-baud" is enabled, which tries to configure the module's baud rate by detecting a predefined bit sequence. That is why we need to send an "AT" before we issue any more AT commands. We do that - but probably we're too fast sending the next AT command, because if we introduce a bit of delay by sending another "AT", everything works fine. 🥳

Probably the serial-to-usb converter introduces just enough delay to make it work properly. 🤔

#iot #nbIoT #ppp #raspi #simcom #mobileNetwork

Today on the test bench: A Waveshare module for Raspberry Pi with a SimCom SIM7070G NB-IoT modem on it.

We evaluate the module and chipset for use in our IoT products and try to get it working properly with Deutsche Telekom M2M IoT SIM cards 🙂

As the bring-up process turned out to be non trivial and the documentation is poor, we are going to publish a blog post about it, soon 😉

#iot #NBIoT #telekom #cellular #mobile #network

"What is the minimum network speed required to run simple bash commands over SSH?" we just asked ourselves.

We are trying to find out if an NB-IoT network is fast enough to remotely perform our SSH-based provisioning and maintenance tasks on our #AMPS devices and were looking for a simple way to test how our nodes behave at a certain network speed.

Fortunately, there is a simple method to do this:

ssh -o ProxyCommand='pv -qL 37K | nc %h %p | pv -qL 37K' user@amps-node

This limits the network speed for SSH to 37 kBytes/s (~300 kBit/s) for upload (first parameter) and download (second parameter 37K). ProxyCommand can also be specified in the ~/.ssh/config file if you are looking for a more permanent solution.

(Btw: Yes, 300 KBit/s is more than enough for our purpose 😉)

#ssh #linux #NBIoT #iot #network #internet