5G Explained - GoTechTalk


Sunday, February 10, 2019

5G Explained

No matter what kind of mobile technology that you have in your pocket it quickly becomes yesterday's news and that may never be more evident than right now as telecommunications providers worldwide are working on 5G which might be just as big of a deal as when we astonished at being able to look at full-fat webpages on tiny phone screens.

Another G just after LTE became super widespread, well while it's admittedly a bit tricky to keep up with all different wireless standards and the G`s, the industry is hoping that 5g will be good enough to end constant talk of what the next G is and we'll hopefully only need incremental improvements over time, so what is supposed to be so special about 5g anyway, well it's being cantered around the idea that the Internet of Things that is connected devices that enable self-driving cars automated homes and more will become very important in the near future and that mobile data networks will need to be very robust to handle it all with wearables appliances vehicles mobile AR and VR devices and so on expected to push so much traffic through mobile data networks with some devices needing as many as multiple gigabytes per second we will need not only faster overall speeds but also lower latency imagine if your self-driving car took half a second too long to make a critical turn and suddenly you've got a huge dent in your fender or more frighteningly in your body, 5G however is not only aiming to reduce latency to as low as one millisecond to allow real-time operation of important devices it also boasts a theoretical maximum speed of 20 gigabits per second way faster than the quickest LTE networks today or even google fiber connections of course this is a theoretical maximum and it looks like the bare minimum for the average user will be about a hundred megabits though again this is still quite a bit faster than real-world performance of many LTE deployments.

Part of this awesomeness is due to 5 G's usage of higher frequency waves which also gives it a much greater capacity for beam forming meaning signals can be focused on to areas where there's more data traffic compared to existing cellular antennas many of which are just omnidirectional and just kind of send signals out without regard for where usage is actually concentrated which is not good, combine that with massive MIMO (Multiple Input and Multiple Output), which will allow many users to share the same connection simultaneously with multiple antennas on a transmitter, similar to the newer MU-MiMO (Multiuser – Multiple Input and Multiple Outpu t) networks for home Wi-Fi connections and you'll have a network that is not only quicker but also has better through put so the quickly growing number of things connected to the mobile Internet don't become bottle necked in fact the industry is hoping to have a million devices supported per square kilo meter possibly meaning no more delays at places like concerts conventions or sporting events of course this is a very ambitious project so it's not available quite yet current projections have 5g hitting the market later this year (2019) with it becoming widespread around 2025 since providers not only are trying to make 5g a more uniform standards than what exists today to ensure better compatibility around the world but they also need time to build more infrastructure, that infrastructure would include signal boosters since 5 G's shorter wavelength means it's more prone to signal degradation across great distances but even though most of us will have to wait a while to experience, 5g trials are already underway in a few places around the world and small scale deployments are expected at the end of 2019 and 2020 Olympics to give attendees an early look at the tech before it reaches the mainstream, so in summary don't chunk your LTE phone just yet but don't be surprised if in a few years whatever you're carrying in your pocket ends up putting your home internet connection to shame.

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