Pemalite said:
* 5G is a shared spectrum. Bandwidth is shared between all users of a cell. * 5G signal quality will attenuate depending on distance, air quality and even the weather and thus will also affect speed. * Switch/Xbox/Playstation doesn't have 5G support. - It needs a 3rd party (another) device to piggy-back from.
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Massive MIMO can be used to increase the capacity of a cell site without adding more spectrum resources ...
Weather is only a real issue when considering millimeter wave bands ...
Don't need another device, just need to have a baseband technology supplier (in Vita's case it was a MDM6200 from Qualcomm) and a RF antenna module supplier (Broadcom supplied Vita's RF antenna modules) integrated into the chipset just like the Vita's 3G SKU ...
Pemalite said:
Although 5G uses a different wavelength to prior technologies, it's range for each Cell is also shorter, so there should be less users per cell. However, being a shared medium, it's likely to garner data caps still. - 4G here in Australia, despite being one of the fastest and most expansive networks in the world still has data limits which can be entirely used within minutes, such limitations don't exist for fixed line.
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5G NR can potentially be deployed on LTE bands as well like for example with T-Mobile's n71 band (600MHz) which will provide for both LTE/NR ...
Cell range is perfectly serviceable with C-band radio frequencies (n77/n78/n79) and its the sweet spot as well in terms of capacity/coverage. It's millimeter waves that has a short range but mmWaves in itself poses problems for coverage anyway ...
Qualcomm are banking om the life of their business that mmWaves will take off since they were the biggest proponents at 3GPP to have mmWaves standardized for 5G NR ...
Pemalite said:
Is 5G the future? Sure. But due to the smaller cell size which reduces the amount of users per cell meaning less bandwidth competition between users, it's going to take allot longer to rollout as you need more cells to cover any given geographical area.
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Smaller cell size doesn't necessarily correlate to lower bandwidth. It mostly correlates with the size of the antenna arrays which are also dependent on the radio frequencies. A cell built for 24 GHz frequency will naturally have smaller individual antenna elements compared to a cell built for the 1 GHz frequency ...
A 4T4R LTE antenna operating at 1 GHz frequencies with 20MHz of bandwidth will be no match against a mmWave small cell antenna operating at 24GHz with 400MHz of bandwidth in terms of capacity despite the fact that the former is a far bigger cell ...
Rollout for 5G NR will definitely be a bigger challenge compared to LTE but it can be made a lot more manageable if mobile network service operators don't opt-in to deploy mmWaves like we are seeing with early 5G deployments in the US with AT&T or Verizon ...