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kq4ym
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kq4ym,
User Rank: Light Sabre
9/16/2016 | 8:25:28 AM
Re: European 5G Spectrum
One would think there might be some solution to the increase in fragmentation of the frequency bands. As "the spectrum fragmentation that has bedeviled 4G will also be a feature of the future 5G industry," seems to be wholly true, could there be an international agreement of future band use to consolidate use and alleviate the current problems in finding bands?
TV Monitor
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TV Monitor,
User Rank: Light Sabre
9/6/2016 | 12:04:10 PM
Re: European 5G Spectrum
In the US, 3.4 Ghz is a CBRS band and cannot be used for generic LTE service. Ditto for Korea.

This leaves Europe, China, and Japan as markets that could implement low-band 5G in 3.4 Ghz band. But do Nokia and Ericsson want to compete against Huawei and ZTE in this band's equipment market?

Samsung @ 28 Ghz can be sure it has no competition, but not Nokia and Ericsson @ 3.4 Ghz. In essense, European telecomm market could be taken over by Chinese if EU regulators play it wrong and that would be a disaster for EU from national security perspective.
Gabriel Brown
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Gabriel Brown,
User Rank: Light Sabre
9/6/2016 | 6:19:59 AM
Re: European 5G Spectrum
You would have a different number of antennas in 3.4GHz as in the 28GHz band, obviously. Think 24x4 MIMO for the lower band, for example.

Neverthless, I agree with this:

The solutions at >cmWave will be different to those at mmWave and one needs a flexible mind to view these are part of the same 5G ecosystem.

But think I they are part of the same system. One can imagine that the device connects simultaneously to sub-6GHz and mmwave radios. 
Gabriel Brown
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Gabriel Brown,
User Rank: Light Sabre
9/6/2016 | 3:50:23 AM
European 5G Spectrum
"In its summer statement, the RSPG identified spectrum in the 700MHz and 3.4-3.8GHz ranges as 5G-ready, going as far as claiming the latter ranges would constitute "the primary band suitable for the introduction of 5G use in Europe even before 2020."

This makes sense. 

Higher bands would be great (for shorter-range high-speed links), but realistically mobile operators also want wide-area coverage. These lower bands provide that. With massive MIMO technolgy 3.4-3.8 can de deployed on the same cell site grid as 3G/4G making the deployment fast and cost effective. And the timing of 700MHz in Europe could work out pretty well.

The low-band variant of 5G may not look massively different to LTE, but still, there will be improvements.

[I also agree the Europeans / CEPT were 'caught on the hop' a bit by the high-band spectrum opportunities. Not ideal, but not disastrous either.] 

 


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