The 3G4G Blog

I am fascinated by and have previously written blog posts about transparent antennas. Back in 2019 NTT Docomo announced that they have been...

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 ...

When we made our little Open RAN explainer , couple of years back, we never imagined this day when so many people in the industry will be ta...

This topic keeps coming up every few months with either someone asking me for clarifications or someone asking us to make a video. While...

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...

One of the most controversial 5G use cases is the remote surgery. In this post I want to quickly look at the history and what is possibl...

NTT Docomo released a whitepaper on 5G Evolution and 6G. In a press release they announced : NTT DOCOMO has released a white paper on ...

With 4G maturing, private cellular networks are finally getting the attention that they deserve and has been promised for quite a while....

The Japanese operator, NTT Docomo is a very bold MNO. Not only do they do interesting research but they are very open about what they ha...

5G has dominated the 3G4G blog for last few years. Top 10 posts for 2018 featured 6 posts on 5G while top 10 posts for 2017 featured 7....

I recently realised that I have never written a post just on Network slicing. So here is one on the topic. So the first question asked is, ...

There seems to be a good amount of research going on in higher frequencies to see how a lot more spectrum with a lot more bandwidth can b...

From a press release by NTT Group : Nippon Telegraph and Telephone Corporation (NTT, Head Office: Chiyoda-ku, Tokyo, President and CEO...