TagLTE

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.

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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.

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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.

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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.

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Developping a FieldTest app with Android N (Part 2)

I started to develop a FieldTest application for Android that I will publish on Google Play for everyone to use. I wanted to do this because of the frustration of not being able to find an app that is both eye-candy and reports useful information from my network.

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Developping a FieldTest app with Android N (Part 1)

​Recently I discovered that Android N (7.0) provides a new method getArfcn() to get the Absolute Radio Frequency Channel Number, which gives you the exact frequency identifier that is used by the mobile phone on 2G (ARFCN), 3G (UARFCN) or 4G (EARFCN).

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Android field test shortcode

Did you know that by entering a shortcode on most Android phones, you can access a hidden menu which gives you a lot of information about the network and device, including radio frequency used (ARFCN) and signal performance?

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Calculate the maximum throughput of TD-LTE

In a previous post I presented how to calculate the maximum throughput of LTE, and this was focusing on LTE FDD (Frequency Division Duplex), where an equal bandwidth of spectrum is allocated for both the Downlink and the Uplink. As a reader asked, in this post we do the same for LTE TDD (Time Division Duplex) a.k.a TD-LTE.

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Triple-play is the only way

Recently I have been trying to find studies on how people consume data on Internet during a typical day, in order to find out what is the proportion of data volume actually done in conditions of mobility and the rest which done in fixed locations. Although I think it could be a very interesting subject for a thesis or a research paper, I could not find anything. So I tried to come up my own evaluation.

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What is the maximum speed of LTE?

Snapdragon just announced the X16 LTE Modem that can achieve 1 Gbps throughput thanks to higher order modulation (256 QAM), 4×4 MIMO and 4x Carrier Aggregation of 20 MHz. But how can we calculate the maximum theorical peak LTE throughput depending on those parameters?

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