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Most people think 5G means faster downloads. It does—but is that all? The deeper story is about what ‘faster’ even means, and why three different answers lead to three different engineering problems.
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A satellite covering half a continent and a phone in your pocket were not designed for each other. Getting them to talk is a harder engineering problem than it might look—and the industry is still working out how.
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A 6G base station and a radar have more in common than it might seem. ISAC—Integrated Sensing and Communication—is the 6G scenario that takes that similarity seriously. Here is where the value proposition holds up, and where it deserves a harder look.
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Wireless systems have been built on a Gaussian approximation for decades. At higher frequencies, that approximation starts to cost something real. AI-native 6G is, in part, a proposal to uncover and take advantage of the hidden structure.