Page 2 of 6

What’s next in mobile? #MWC2017

Topics seen at MWC this year – Day 1

Continue reading

LTE Radio Coverage vs Frequency Band

I found some time ago a good PDF document from ZTE talking about APT 700 band for LTE and which was also showing a table of the theorical LTE coverage performance versus the radio frequency used. This is a very useful input to do quick coverage planning estimation based on the frequency band you can use.

Continue reading

Measurement units in Telecommunications – kilo, mega, giga

I got a comment about the conversion of bps to kbps used in the LTE throughout calculator that reminded me about this bizarre situation that we usually do not convert telecom bits into kilobits the same way we convert storage bytes into kilobytes. Here is the reason why.

Continue reading

5G will be called 5G and has an official logo

3GPP has unveiled the logo and name which will be used for 5G networks, which will be called 5G (unlike 4G which official name has been LTE). This designation and logo are meant to be used from 3GPP Release 15 and onwards and intend to show some kind of continuity between LTE and 5G.

Continue reading

GSM-R, LTE-R and Hyperloop at 1,200 kph

Hyperloop Transportation Technologies (HTT), one of the American start-up which develops a concept of super fast train moving on electromagnetic suspension at 1,200 km/h has recently signed an MoU with the region of Occitania in France to set-up its European R&D center. This made me wonder how it will be possible to communicate from an Hyperloop train with our smartphone.

Continue reading

5G Network Architecture

Here is a diagram that I found interesting, showing the logical architecture of a 5G network including the Core and Radio subsystems, as it is being discussed in the 3GPP working groups.

Continue reading

FieldTest / NetMonitoring app for Android 7

I have released a first version of the field test / network monitoring application for Android 7 (Nougat) devices. With this app, you will be able to collect xARFCN data from the network and know which frequency band your smartphone is using.

Continue reading

Quick overview of the Wi-Fi on board SilkAir flights

Recently I had a flight to Singapore on a SilkAir plane equipped with free Wi-Fi on board providing a streaming access to a selection recent movies, TV short features and some music for all passengers, but no access to Internet which is the very costly part in an airplane. SilkAir is the short-haul carrier of Singapore Airlines which operates a fleet of Airbus A320 and Boeing B737-800 aircrafts.

Continue reading

Test: Termux, your Linux terminal on Android

Recently I was looking for a way to run some commands that I used to do under Linux command line and I found the Termux app.

Continue reading

Developping a FieldTest app with Android N (Part 3)

Playing with the app in Singapore: I bought a Singtel tourist SIM card while traveling in Singapore for a few days and tested the app to see what they were using for their 3G and 4G networks.

Continue reading

© 2017 The 8 Layers

Theme by Anders NorénUp ↑