Adnan Ghayas

Hey, I am Adnan, and I started this website a few years ago to create a free online space where mobile communications concepts are explained properly in plain English. While most topics in mobile communications are well-documented, the use of complex terminologies can make the information a bit hard to follow. That’s where the industry experience can help. I have been part of the cellular industry for a while and have been lucky enough to have worked for and with some of the largest telecom operators and vendors globally. This website aims to keep things simple, and it is for anyone who wants to learn about mobile networks, phones and the technologies that make it all happen.

Moving from engineering to product management in telecom

Making a change in your career trajectory can be intimidating, especially if you move into an area that is outside of your comfort zone. While there are various types of moves you can make, the more significant ones are those that require you to change your entire mindset. Transitioning from an engineering role into product …

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Finding your first engineering job in mobile communications

Finding your first job after completing your engineering degree can be challenging. In mobile communications or any other industry, if you don’t already have a network of people, things can potentially take a little longer for you. But there is absolutely nothing to worry about because many of us go through the same journey when …

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Cellular IoT (CIoT) – Mobile IoT using NB-IoT and LTE-M

Today, mobile networks are not limited to just mobile phones for consumers and businesses, but they also provide connectivity for machine-to-machine (M2M) and Internet of Things (IoT) devices. IoT, or the Internet of Things, has been around for a long time, and it is a system of devices connected to the internet to communicate with …

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FDD vs TDD: What are FDD and TDD in mobile networks?

FDD and TDD are two fundamental concepts in mobile communications and other telecom systems. Together they represent the duplexing schemes in mobile networks that deal with two-way communication. FDD (Frequency Division Duplex) is a technique in mobile networks that uses separate frequency bands for uplink and downlink communication; TDD (Time Division Duplex) is a technique …

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Difference between 5G mobile networks and 5GHz WiFi

With the growth of mobile internet and hotspots in recent years, people have found themselves in situations where cellular technology and WiFi can be used side by side to complement each other. However, some of the terminologies within these two very different technologies sound similar and can lead to confusion. One such confusion is between …

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EDGE 2G or 3G: Is EDGE in GSM a 2G or 3G technology?

EDGE is a network enhancement in second-generation (2G) GSM networks and is represented by an E symbol on cell phones. It is a successor of the GPRS enhancement that introduced the packet-switched mobile internet in GSM networks. EDGE or Enhanced Data for Global Evolution is a 2G technology introduced in GSM networks to increase the …

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