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February 15, 2020 at 10:35 am #6027UK SentinelModerator
BT Openreach UK Trial Finally Brings G.INP to ECI FTTC Broadband
Openreach (BT) has announced plans to trial ReTransmission (ReTx / G.INP) technology on “more” of their Fibre-to-the-Cabinet (FTTC / VDSL2) based broadband network, but what the public briefing doesn’t tell you is that this time they’re going to try rolling it out on their estate of ECI street cabinets.
Admittedly talking about FTTC improvements when the focus these days is on FTTP might seem a bit old hat, but that doesn’t change the fact that a huge proportion of broadband consumers in the UK are using the service. As such any improvement to Openreach’s original hybrid fibre technology is worth a mention.
Just to recap. G.INP (ITU G.998.4) is an error correction solution that is designed to help resolve spikes of Electromagnetic Interference (impulse noise), which can improve a line’s stability and thus performance. The introduction of this technology can, on some VDSL2 lines, even produce a small increase in service speed.
The technology is nothing new to Openreach and they’ve had better luck getting it to work on their larger estate of Huawei based cabinets, although unfortunately the same cannot be said for those using kit from ECI. Various past attempts have been made to get G.INP working on ECI and all have run into problems.
Officially the public copy of this briefing makes no mentioned of ECI and merely informs ISPs that “we’ll be running a trial to assess the impact of applying ReTransmission to more of the VDSL network.” Naturally we were curious and asked around, which has enabled us to confirm a few more details.
The feedback confirms that Openreach will be testing ReTransmission on lines fed via ECI DSLAMs (i.e. FTTC street cabinets). The plan seems to be to test this on up to around 100,000 lines via supporting ISPs (opt in). The trial itself is currently pencilled in to start on 12th March 2020 and it will then probably run until around August 2020. Hopefully this time the solution they’ve developed has better luck than previous attempts.
Success in this trial will be viewed primarily as a reduction in faults driven by an increase in stability and increase in speed. Assuming the results are as expected then the G.INP lines will remain enabled and it will then be rolled out to the remaining ECI estate
Article Origin – Openreach UK Trial Finally Brings G.INP to ECI FTTC Broadband
In a completely sane world, madness is the only freedom (J.G.Ballard).March 14, 2020 at 7:46 am #6184Mrk26Participant
Still nothing changed yet, according to plusnet forum some exercises are expected to take place in next week. I also didn’t heard back from my isp (EE) so just waiting game at the moment.March 14, 2020 at 8:07 am #6185UK SentinelModerator
There is some chat on the PlusNet forums about G.inp trials for ECI cabs , but does seem very informal – I assume BT Openreach have already decided which lines / circuits are going to be tested and told effected ISP to be sympathetic / patient
Alas from a BT perspective, (I had BT engineer visit me last week as profile was wrong) it seems Cabs / DSLAM management / Admin is done via India still
In a completely sane world, madness is the only freedom (J.G.Ballard).
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