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bealtine

This just shows how 4th world .ie has become. Thanks eamo. We'll remember all the useless stuff you have done at the next election.

http://www.engadget.com/2008/01/24/indian-telecom-company-to-rollout-massive-wimax-network/

Indian telecom company to rollout massive WiMax network

Posted Jan 24th 2008 8:05AM by Nilay Patel

Even as Sprint tentatively rolls out the XOHM network here in the States, the largest Indian telecom company is planning to build a mobile WiMax network covering three states on the subcontinent capable of serving 250 million people. State-owned Bharat Sanchar Nigam Limited is leaning on Soma Networks to build the broadband-speed network in response to government requirement that 20 million broadband lines be in service by 2010. The WiMax rollout will first hit the largest and most-connected states, but BSNL is planning on extending the network if things go well. Soma says it's shipping thousands of base stations to get the network operational at full speed, and that when it's done, 400 Indian cities will be covered, with downstream speeds of 1.5 megabits per seconds. No word on when that might be, but the race is officially on, Sprint.

crawler

To make it worse - the way the FWALA licences are done here means that WISPS will never be able to roll out true mobile Wimax with 100% coverage....there is only one national license and guess who has that?

Low frequency national spectrum should be freed up in line with the European guidelines on spectrum usage e.g. 2.5Ghz (sorry UPC no offence!! )

watty

Unless everyone has 2.5Ghz for Internet, then there won't be any WiMax gear for it.

Or... If someone buys ALL the wisps?

Or 900/1800/2100 GSM&3G made technology neutral instead of dedicated. That's what Ofcom in UK wants for all Spectrum. Methinks that most spectrum should not be neutral. You really want your DTT set or wireless Microphone or Phone to keep working and not be obsolete because someone resells the license. True SDR/Cognitive radio is still far off and making it multiband needs HARDWARE, not software. Each band needs a different physical aerial and printed tracks/filters for receive & Transmitt.

Boston

watty wrote: »

Unless everyone has 2.5Ghz for Internet, then there won't be any WiMax gear for it.

Or... If someone buys ALL the wisps?

Or 900/1800/2100 GSM&3G made technology neutral instead of dedicated. That's what Ofcom in UK wants for all Spectrum. Methinks that most spectrum should not be neutral. You really want your DTT set or wireless Microphone or Phone to keep working and not be obsolete because someone resells the license. True SDR/Cognitive radio is still far off and making it multiband needs HARDWARE, not software. Each band needs a different physical aerial and printed tracks/filters for receive & Transmitt.

wireless Microphone frequencies are protected. Also define what a band is?

Sponge Bob

There is a strong argument for 'persuading' UPC to kindly piss off to the commercial DTT muxes thereby freeing up the 2.5ghz band .

If there is no serious interest in these muxes when the BCI tries to auction them off this year the proposal should be slapped on the table with an earmark for new CPE from the proceeds of the auction .

Then again the fact that wimax is now a 3g technology , officially , could lead to some resistance from the mobile operators to this proposal.

UPC are within their rights to hang on in there to the bitter end, 2014 I believe is when the 'MMDS band' disappears , forever.

watty

Boston wrote: »

wireless Microphone frequencies are protected. Also define what a band is?

Only after a huge outcry!

Depends on exact Radio system and how highly tuned an aerial is.
The "smallest" band size tends to be about +/- 10% (the range a higher gain aerial still has usable SWR) or at most just under one octave, (2:1 frequency range). It's not really feasible to have much more than 2:1 in one band. Hence TV tuners for 45MHz to 860MHz usually have three sets of coils, mixer frequencies and preamp circuits. 1.8MHz to 30MHz HF transmitters about 6 bands for similar reasons. More smaller bands of circuits usually gives better Intermodulation and noise performance on RX and lower spurious signals on TX.

At microwave frequencies a waveguide may handle rather less than 2:1 frequency range.