The 3G4G Blog

Lorenzo Casaccia, Vice President of Technical Standards, IP Qualcomm Europe, Inc. has been with Qualcomm since 2000. During that time he'...

Metaverse means different things for different people. If you explain Metaverse with an example, many people understand but they are general...

Ralf Kreher explained EPS Fallback mechanism in his post earlier, which is still quite popular. This post contains couple of videos that al...

I looked at Control and User Plane Separation (CUPS) in a tutorial, nearly five years back here . Since then most focus has been on 5G, not ...

Over the last couple of years, I keep on coming across Zero-Trust Architecture (ZTA). A simple way to explain is that the standard model of ...

I looked at IMS briefly in my LTE voice tutorial here . The Nokia Lectures covered IMS in-depth in part 5 of the video. I recently came acr...

Cross posting from LinkedIn , please post any comments there! One of the advantages of having been in the industry for a very long time is o...

I come across a question relating to the different type of RAN architectures once per month on an average. Even though we have covered the t...

Having been writing about Open RAN for a while , I thought it was important to make simple beginners tutorials for O-RAN. As my full time jo...

We looked at the 5G Enhanced URLLC ( eURLLC ) earlier. One of the ways to improve reliability is to have redundancy in the user plane. This ...

We often get questions about 5G Service Based Architecture. Luckily, we have a tutorial that we can redirect people to. It's available h...

I have been meaning to write a post on RAN functional splits and even make a video. Recently I came across multiple of these things so I am ...

It's been just over a year since I wrote a detailed post on what I called '5G and Fixed-Mobile Convergence (FMC)'. The technica...

Earlier this year, MediaTek had announced that its MT2625 NB-IoT chip has been validated for LwM2M over NIDD on SoftBank Corp.’s cellular n...

One of the interesting features of 5G is Ultra-Reliability and Low-Latency Communication or URLLC. It has been enhanced as part of 3GPP Rele...

Last week I read about Jio looking at 5G Network Architecture Option 6. There were also a few discussions on Twitter with users sounding a ...

Back in 2012, we were talking about migration from HLR to HSS . Now we are discussing how to interface HSS to the UDM (Unified Data Managem...