In addition, one of the reasons why 5G femtocells will be so small is that the brains behind the network will no longer be on the towers, but on the cloud. Deploying high-speed fiber doesn’t come cheap. While some of that will be delivered by the new femtocells sharing with each other, at the end of the day you need fiber. Then there’s the little problem of getting enough bandwidth to all those 5G femtocells so you can stream your video. How easy? That stop sign in front of your car? Bleck! There went your signal. Now, in 5G’s new, shiny future, cell “towers” will be much smaller femtocells, about the size of microwave ovens, and they’ll be pretty much everywhere: on power poles, buses (no, really!) and signs. That’s a heck of a lot of new cell towers, isn’t it? The real range of mmWave appears to be about about a third of a mile. ![]() While a seminal research paper boldly proclaimed, “ Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!” there are still real doubts. ![]() It makes use of multiple-input and multiple-output, (MIMO) and millimeter wave (mmWave) to, in theory, deliver up to gigabit speeds as you walk down the street and watch Star Wars: Chewy’s Story in 3D and try not to walk in front of a self-driving truck. Enhanced Mobile Broadband (eMBB), which is only one of three flavors of 5G, is the one you’ll be using with your smartphone. ![]() Then there are purely practical matters such as, say, 5G’s range. Then there’s what the vendors are actually doing, which bears some resemblance to all these proposals. The Next Generation Mobile Networks Alliance has one 5G definition, 3GPP has another one and the International Telecommunications Union (ITU) has yet another one, which has just passed first-stage approvals. First, on the tech side, we don’t have any common understanding of what 5G is.
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