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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#21
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In message , at 12:45:00 on Wed, 31
Jul 2019, MissRiaElaine remarked: On Tue 30/07/2019 14:04, Roland Perry wrote: In message , at 13:55:47 on Tue, 30 Jul 2019, Jarle Hammen Knudsen remarked: No, because the emergency services contract (which this is piggy-backed upon) is 4G. Is this something to replace the tetra based network in the UK? Yes. And it's also much delayed. But that's not really a surprise for a large government IT project! It's also going to be a total waste of time and money. Tetra just worked, why change it..? I think the problem is it's proprietary, and rather old. Replacing worn out equipment and paying ongoing licence fees, was regarded as less effective than using an 'open source' idea like 4G. -- Roland Perry |
#22
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On 31/07/2019 14:00, Roland Perry wrote:
In message , at 12:45:00 on Wed, 31 Jul 2019, MissRiaElaine remarked: On Tue 30/07/2019 14:04, Roland Perry wrote: In message , at 13:55:47 onÂ* Tue, 30 Jul 2019, Jarle Hammen Knudsen remarked: No, because the emergency services contract (which this is piggy-backed 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..? I think the problem is it's proprietary, and rather old. Replacing worn out equipment and paying ongoing licence fees, was regarded as less 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? What's concerning is that they are still rolling out a 4G solution when 5G is already here... |
#23
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In message , at 16:00:22 on Wed, 31 Jul
2019, Someone Somewhere remarked: No, because the emergency services contract (which this is piggy-backed upon) is 4G. Is this something to replace the tetra based network in the UK? *Yes. And it's also much delayed. But that's not really a surprise for a* large government IT project! It's also going to be a total waste of time and money. Tetra just worked, why change it..? I think the problem is it's proprietary, and rather old. Replacing worn out equipment and paying ongoing licence fees, was regarded as less 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. -- Roland Perry |
#24
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On Wed, 31 Jul 2019 16:00:22 +0100, Someone Somewhere
wrote: On 31/07/2019 14:00, Roland Perry wrote: In message , at 12:45:00 on Wed, 31 Jul 2019, MissRiaElaine remarked: On Tue 30/07/2019 14:04, Roland Perry wrote: In message , at 13:55:47 onÂ* Tue, 30 Jul 2019, Jarle Hammen Knudsen remarked: No, because the emergency services contract (which this is piggy-backed 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..? I think the problem is it's proprietary, and rather old. Replacing worn out equipment and paying ongoing licence fees, was regarded as less 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? What's concerning is that they are still rolling out a 4G solution when 5G is already here... Whe haven't finished rolling out our Tetra ntework in Norway yet... -- jhk |
#25
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On Wed, 31 Jul 2019 14:00:30 +0100
Roland Perry wrote: In message , at 12:45:00 on Wed, 31 Jul 2019, MissRiaElaine remarked: On Tue 30/07/2019 14:04, Roland Perry wrote: In message , at 13:55:47 on Tue, 30 Jul 2019, Jarle Hammen Knudsen remarked: No, because the emergency services contract (which this is piggy-backed upon) is 4G. Is this something to replace the tetra based network in the UK? Yes. And it's also much delayed. But that's not really a surprise for a large government IT project! It's also going to be a total waste of time and money. Tetra just worked, why change it..? I think the problem is it's proprietary, and rather old. Replacing worn Not that old in radio terms. Plod was still using motorola analogue trunking systems only 15 years ago - I used to listen to them on a scanner. Tetra is a lot newer than DAB! |
#26
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On Wed, 31 Jul 2019 16:25:50 +0100
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-backed upon) is 4G. Is this something to replace the tetra based network in the UK? *Yes. And it's also much delayed. But that's not really a surprise for a* large government IT project! It's also going to be a total waste of time and money. Tetra just worked, why change it..? I think the problem is it's proprietary, and rather old. Replacing worn out equipment and paying ongoing licence fees, was regarded as less 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. 5G is all hype. Yes it allows fantastic download speeds - as long as you're within site of a transmitter. Go behind a wall or around a corner and the speed soon drops off as the frequency simply doesn't penetrate matter very well. Blanket coverage of 5G simply won't happen as it'll require far too many base stations and associated equipment and wired links and would cost an absolute fortune which the phone companies don't have. Its just marketing hype to part the usual techno-suckers from their money in order to get smartphone sales back up. |
#27
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#28
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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. |
#29
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In message , at 08:12:22 on Thu, 1 Aug
2019, Someone Somewhere remarked: No, because the emergency services contract (which this is piggy-backed* upon) is 4G. Is this something to replace the tetra based network in the UK? *Yes. And it's also much delayed. But that's not really a surprise for a* large government IT project! It's also going to be a total waste of time and money. Tetra just worked, why change it..? *I think the problem is it's proprietary, and rather old. Replacing worn* out equipment and paying ongoing licence fees, was regarded as less* 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. The money to put the 4G on the tube is coming from the much-delayed Emergency Network project. There isn't any money to install 5G, and it's far too late to start changing the Emergency Network spec to include 5G. That's the kind of thing which makes large government IT projects even later and more over budget than they already are. -- Roland Perry |
#30
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On 01/08/2019 11:35, Roland Perry wrote:
In message , at 08:12:22 on Thu, 1 Aug 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 surpriseÂ* 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? Â*Yes, that's part of it. And the new handsets are also half the price ofÂ* Airwave ones. What's concerning is that they are still rolling out a 4G solution when 5G is already here... Â*The Emergency Network requires the whole country to be flooded with 4G.Â* They aren't even sufficiently close to that yet. Let alone start fromÂ* scratch with 5G. Â*The original switch-off date for Airwave was supposed to be the end ofÂ* 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?Â* 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. The money to put the 4G on the tube is coming from the much-delayed Emergency Network project. There isn't any money to install 5G, and it's far too late to start changing the Emergency Network spec to include 5G. That's the kind of thing which makes large government IT projects even later and more over budget than they already are. And even more out of date. Combined base stations and aerial arrays are already available and they should have been using those even if they aren't turning on the 5G bit now. This is particularly true as 5G is far better at dealing with high densities of users which a tube station / train is a rather good example of. |
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