New Zealand issues 4G spectrum

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old3eyes

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#55015 23-Dec-2009 14:16

FYI,

http://www.zdnet.com.au/news/communications/soa/New-Zealand-issues-4G-spectrum/0,130061791,339300160,00.htm

"New Zealand has made a push towards 4G network services, with its government confirming the initial frequency allocation from the old analog tv spectrum.

Some will go towards digital television, with the remainder for 4G networks and other "new uses". "These decisions will enable New Zealand to realize the productivity and economic benefits of emerging radio technologies, as well as helping to bring fast broadband to rural parts of the country," said ICT Minister Stephen Joyce."

Maybe we need a 4G forum??

Regards,

Old3eyes

sbiddle

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#284841 23-Dec-2009 14:27

Also worth noting is that this will mean a major change in Freeview|HD frequencies across a large number of sites.

Large scale retunes are always a problem, especially with all the non approved boxes that don't handle duplicate MUXs as well as the certified boxes such as the Zinwell.

timestyles

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#284851 23-Dec-2009 15:08

Won't it be at least 5 years until the old analog frequencies are available? Digital use is about 60% at the moment, increasing by about 1% a month, but that rate will drop as it gets closer to 100%.

sbiddle

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#284854 23-Dec-2009 15:34

Rememer this spectrum is UHF only - once Sky UHF is gone Freeview|HD channel reallocations could occur and if MTS agreed to stop analogue transmissions before the official ASO date then this spectrum could be available from 2012 onwards.

VHF could still continute until ASO in ~2014, the only thing that's preventing is the rollout of a DAB+ Digital Radio network which needs the VHF III band.

cyril7

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#284975 24-Dec-2009 10:50

Hi guys, I see there are reports from Europe that LTE700 has screwed home owners TV reception, and often their neighbours. When I first saw it reported that they were going to use BandIV/V channels for LTE my first thought was I hope they have done their spectrum management leg work, it appears they have not!

Issue is that most TV tuners (analog or DVB-T) are not designed for large power variances in band. They typically have little if any selectivity in the front end so will struggle if a near by signal 20-40dB higher than the wanted exists, which will happen when the LTE return channel transmitter fires up.

Interesting times ahead

Cyril

VFNZPaulBrislen

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#284980 24-Dec-2009 11:28

When you hand over the spectrum previously used for one purpose to another industry for another purpose then the previous users' experiences will indeed be impacted.

By the time we get LTE underway all the analog TVs will be switched off or will become useless.

Cheers

Paul

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cyril7

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#284984 24-Dec-2009 11:39

Hi Paul, the reports from Switzerland relate to DVB-T services in the UHF band not analog, so the problem is real and of current/future TV services not outgoing analog ones.

Edit: there were inital dutch reports regarding DVB-C services, however there are now reported issues with general DVB-T services, it will be interesting to see what transpires.

Cheers
Cyril

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#284989 24-Dec-2009 12:55

Oh that makes more sense... I had this fear that it was simply a case of some hick complaining because they'd missed the revolution and their TV didn't work any more.

cheers

Paul

Paul Brislen
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