The 3G4G Blog

I had been meaning to add this session to the blog for a while. Some security researchers may find these useful.  At RSA Conference 2022 , B...

I hear in many presentations that half the world is still unconnected so we need a solution XYZ. In this post I will explore how many people...

I recently participated in a webinar, discussing one of my favourite topics, 5G Standalone (5G SA). If you do not know about 5G SA, you may ...

You have probably heard me a complaining about the pace of VoLTE rollout, 2G/3G shutdowns, 4G Voice roaming, etc. This post highlights all t...

eCall (an abbreviation of "emergency call") is an initiative by the European Union , intended to bring rapid assistance to motoris...

The GSMA Mobile Economy report series provides the latest insights on the state of the mobile industry worldwide. Produced by GSMA's in...

5G Telehealth has been one of the main driving use cases for upgrading the infrastructure. While some use cases definitely make sense, some ...

Detailed post below but if you are after a quick summary, it's in the picture above. Couple of weeks back someone quoted that there were...

I have received quite a few requests to do a 5G Network Slicing tutorial but have still not got around to doing it. Luckily there are so man...

GSMA recently published updated " 5G Implementation Guidelines: SA Option 2 ". It explains the two types of SMS in 5G, the sam...

SEPP (Security Edge Protection Proxy) is part of the roaming security architecture as shown in the figure above. Ericsson's article ,...

It's been a while since I wrote detailed posts explaining UICC and SIM cards . Since then the SIM cards have evolved from Mini SIM to M...

We have been meaning to make a tutorial on augmented reality (AR), virtual reality (VR), mixed reality (MR) and extended reality (XR) fo...

GSMA have recently published a series of reports related to China. This includes the ' The Mobile Economy China ' report as well...