| fatslob-:O said: Sure massive MIMO can be deployed with LTE but it's very rarely that it happens since massive MIMO antennae are very heavy for the given cell site loading and not many mobile network operators like the idea of stressing the cell site only for it to fall down because it couldn't handle some strong winds so deploying massive MIMO in the past usually wasn't worth it since towers needed to be upgraded to handle the extra loading ... The latest iterations of massive MIMO antennae are getting lighter which are making them a more suitable option for increasing bandwidth capacity with no extra spectrum added which will make them far more deployable outside of urban areas ... |
Maybe in your part of the world!
| fatslob-:O said: Meh, the interference posed by extreme weather conditions aren't much of a concern for sub-6 GHz frequencies since they'll penetrate obstacles just fine ... Weather condition interference and line of sight is a much bigger issue with mmWaves ... |
Allot of rural/regional towers here are fed by Microwave backhaul, which is extremely susceptible to poor weather conditions like hail and even rain.
Before VDSL got rolled out with a fiber line to feed the whole network we were relying on microwave backhaul to feed ADSL connections untill just a few years ago, whenever there was any bit of shit weather, the backhaul fell over. - NextGen Networks actually installed a second microwave link as a fallback... And that often fell over as-well, requiring eventually a third link.
2G/3G and 4G all collapsed here on monday during a massive bushfire, the ash and smoke took down all mobile communications.
| fatslob-:O said: Eh, I wouldn't call it a device by itself. It's an "integrated circuit" so let's just leave it at that ... |
You knew exactly what I was talking about, you are just playing semantics. Haha
| fatslob-:O said: "But due to the smaller cell size which reduces the amount of users per cell meaning less bandwidth competition between users" I thought it was implied from the above statement but anyways bandwidth capacity for a cell site is a complex topic ... It's all about the air interface/waveform (TDMA vs CDMA vs W-CDMA vs OFDMA), channel coding technology (turbo code vs convolutional code vs LDPC code vs polar code), MIMO (spatial multiplexing), duplexing techniques (FDD vs TDD/TDD configuration), duplexing modes (full duplex vs half duplex), SINR (signal interference noise ratio), carrier aggregation, un/paired spectrum, etc ... |
It is certainly a complex topic, the ramble you posted doesn't contradict my statement.
Cell sizes of 5G are smaller than 3G or 4G.
Everything you listed is important, but... It doesn't change that underlying principle.
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