When we hear about automotive electronics as a specific field of electronic engineering, one often wonders what makes it so special. As regular consumers, we are familiar with consumer electronics and tend to believe that everything (design, manufacturing, and testing) can be replicated in the same manner. However, a multimedia electronic device (or one used to process or transmit data) that is...
Railway vehicle manufacturers, suppliers and rolling stock operating companies are required to meet mandatory, voluntary and contractual requirements for the construction, commissioning and operation of rolling stock and components. Rail testing companies provide independent, third-party assessment of rolling stock and components to ensure they are compliant with relevant standards. Testing will...
5G is allowing rail operators to gain a competitive edge through digitalizing its rolling stock. However, managing large volumes of widely dispersed network equipment can be challenging.
This post discusses how SD-WAN technology provides rail operators with the software tools they need to overcome these challenges.
eSIM (or embedded SIM) technology is destined to replace the traditional SIM cards that you insert in your mobile phones when you buy a new terminal or switch mobile phone operators. The eSIM is an eUICC (Embedded Universal Integrated Circuit Card) chip on the circuit board of an electronic device with a cellular connection. A virtual SIM, which we shall refer to as a mobile operator profile, is...
Future deployments of 5G mobile telephone networks will bring large-scale small-cell roll-outs. A small cell is nothing more than a miniature base station, or low-powered mobile telephone node, that improves a network’s spectral efficiency by allowing the same frequencies to be reused within a geographic area thanks to its limited range (10 meters to a few kilometers). The desire to improve...
You may not have heard of voice over LTE (VoLTE) technology, but that does not mean you are not using it! Carriers around the world are deploying this technology to get rid of GSM or CDMA-based circuit networks. The first commercial solution was presented in South Korea in August 2012 and most mobile terminals already support it. The main idea is to use a single network (the packet network),...
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