Thread: 4G on the tube
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Old August 1st 19, 07:12 AM posted to uk.transport.london
Someone Somewhere Someone Somewhere is offline
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Default 4G on the tube

On 31/07/2019 16:25, Roland Perry wrote:
In message , at 16:00:22 on Wed, 31 Jul
2019, Someone Somewhere remarked:

No, because the emergency services contract (which this is
piggy-backedÂ* upon) is 4G.

Is this something to replace the tetra based network in the UK?
Â*Yes. And it's also much delayed. But that's not really a surprise
for aÂ* large government IT project!

It's also going to be a total waste of time and money. Tetra just
worked, why change it..?
Â*I think the problem is it's proprietary, and rather old. Replacing
wornÂ* out equipment and paying ongoing licence fees, was regarded as
lessÂ* effective than using an 'open source' idea like 4G.


Wasn't it also the lack of development of the standard and basically
being stuck on GPRS like speeds?


Yes, that's part of it. And the new handsets are also half the price of
Airwave ones.

What's concerning is that they are still rolling out a 4G solution
when 5G is already here...


The Emergency Network requires the whole country to be flooded with 4G.
They aren't even sufficiently close to that yet. Let alone start from
scratch with 5G.

The original switch-off date for Airwave was supposed to be the end of
2019. Many don't expect that to happen for a least five years, and
that's sticking with 4G.


Well yes, but surely if it's layered on top of 4G it could also be
layered on top of 5G and any subsequent radio data bearer of a similar
ilk? I wasn't suggesting it could only be on 4G but made forward
compatible so it wasn't getting to be obsolete by the time rollout was
completed.