One 5G frame, two security contexts — reading a decrypted NR attach
A 5G radio capture can be encrypted twice over, by two separate networks holding two different sets of keys. Wireshark work-item 19757 published a 5…
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F1-U flow control: how a 5G base station's two halves stay in step
In 5G, the gNB is not a single box. Under the 3GPP higher-layer split (TS 38.401), a Central Unit owns the upper radio-protocol layers, and one or m…
Когда автономные машины заменят таксистов?
Привет, Хабр! Если судить по новостям, то до повсеместного распространения автономного транспорта осталось совсем чуть-чуть: Waymo расширяет парк ро…
Cars Communicating Badly Is an Already-Solved Problem
The history of networking is full of tools that repurposed solutions to very different kinds of problems first. Wi-Fi’s origins trace back in part t…
Designing .NET Microservices for Edge Computing in IoT and 5G
Key Takeaways Cloud roundtrips sound fine until you’re building something where the response window is 10 milliseconds. At that point, the architect…
Building a 5G UPF That Actually Saturates a 10G Link: VPP + DPDK + Open5GS in Production
Most writing about DPDK and VPP stays comfortably abstract. Libraries and drivers for fast packet processing. Kernel bypass. Zero-copy I/O. Poll-mod…
Home Broadband Is 5G’s Surprise Killer App
5G telecommunications, according to industry hype when 5G first launched in 2019 , was going to be all about buzzy applications like mobile augmente…
Как я написал E2EE-мессенджер на Spring Boot и WebCrypto — и почему сервер не видит сообщения
Разбор архитектуры E2EE-мессенджера на Spring Boot 3, React и WebCrypto: X3DH, symmetric ratchet, AES-GCM, WebSocket, multi-device и ограничения реа…