mmWave doesn’t penetrate walls Most building materials, such as cement and brick, attenuate and reflect very high-frequency signals with a big enough loss you’re unlikely to receive a very useful signal moving from inside to outside.
Read moreWhat is the range of 5G mid band?
Arguably the most useful band for 5G is mid-band, the range between 1 GHz and 6 GHz . Compared with low-band, there is more mid-band spectrum so it can deliver much faster throughput speeds and has far greater capacity.
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