scusate se faccio (nuovamente) la kind-of-cassandra. sono stato la prima (e per lungo tempo unica) voce fuori dal coro quando veniva reclamizzato il wimax come la tecnologia che avrebbe dato banda illimitata gratis ovunque... IMHO "unlicensed" e "mobile" sono un quasi-ossimoro come "ruota" e "ovale" "mobile" implica che non sai dove sta il terminale e che devi gestire il passaggio da una cella all'altra. ciò implica che devi irradiare a 360 gradi e che devi gestire la prenotazione di risorse sulla cella successiva nel "fixed", invece, la casa non si muove e puoi fare link altamente direzionali dove non hai quasi problemi di collisione con altri una buona analogia e' pensare alla lampadina vs. il laser. se acceso e' "1" e spento e' "0", nel primo caso bisogna dividersi i colori della luce tra chi vuole trasmettere e nel secondo invece non serve. fintanto ch enon ci sara' l'adaptive beamforming (una sorta di lampadina che illumina in un fascio stretto, simile al laser) e le radio cognitive (che se si accorgono che disturbano qualcuno, si spostano da un'altra parte), non mi pare ci siano alternative al mobile e licensed. pero' queste tecnologie arriveranno e allora potrebbe esserci anche il mobile unlicensed, quindi il license dovrebbe essere per l'appunto license (per poter usare diversamente le frequenze quando si potra) e non property, IMHO ciao,s. On 13/01/2012 02:43, J.C. DE MARTIN wrote:
-------- Original Message -------- Subject: [IP] Google pleads for more unlicensed spectrum instead of more auctions Date: Thu, 12 Jan 2012 20:20:42 -0500 From: Dave Farber <dave@farber.net> Reply-To: dave@farber.net To: ip <ip@listbox.com>
---------- Forwarded message ---------- From: *Dewayne Hendricks* <dewayne@warpspeed.com <mailto:dewayne@warpspeed.com>> Date: Thu, Jan 12, 2012 at 8:01 PM Subject: [Dewayne-Net] Google pleads for more unlicensed spectrum instead of more auctions To: Multiple recipients of Dewayne-Net <dewayne-net@warpspeed.com <mailto:dewayne-net@warpspeed.com>>
Google pleads for more unlicensed spectrum instead of more auctions Cites inability to compete with big carriers in auctions By Brad Reed, Network World January 12, 2012 <http://www.networkworld.com/news/2012/011212-google-spectrum-254842.html>
LAS VEGAS - Google would really, really like to see the Federal Communications Commission open up a huge swath of unlicensed spectrum for mobile broadband. However, it doesn't look like the company will get its wish. During a panel discussion at the Consumer Electronics Show yesterday, Google senior policy counsel Rick Whitt outlined his company's case for making more unlicensed spectrum available instead of simply auctioning off spectrum to the highest bidders. In particular, Whitt cited Google's inability to compete with Verizon when bidding on the so-called "C Block" of spectrum on the 700MHz band that the FCC auctioned off in 2008 that now forms the backbone of Verizon's nationwide LTE network.
"We thought, 'What would it take for us to outbid Verizon?' And every one of the game theorists we talked to across the spectrum said the same thing: 'You'll never outbid Verizon,' " he said. "They are the incumbents and they will do everything they can to foreclose your entry into the market."
Whitt also cited concerns about the proposed spectrum auction legislation that recently passed in the House of Representatives. In particular, Whitt said that an all-licensed approach to spectrum wouldn't give carriers the spectrum they need to build out common infrastructure.
"The concern that many of us have ... is that [the proposed House legislation] seems to say, 'Everything that's cleared must be auctioned and everything that's auctioned must be licensed,' which in our mind would rule out unlicensed," said Whitt. "If nothing else, if you are an advocate of licensed usage there are things like guard bands or things like duplex gaps that are going to be really necessary to have the next generation of LTE networks built... This is beachfront spectrum. How about a couple public beaches?"
But Neil Fried, the chief telecommunications counsel for the House Energy and Commerce Committee, said that the spectrum in question would be wasted if it was used for short-field communications and said that it needed a national telecom carrier to properly build out and manage a nationwide mobile broadband network.
"There is a need for unlicensed spectrum and that will remain," said Fried. "The type of things we're talking about, the offloading? That's short haul, that's not long haul. If we're talking about beach-front property, are we talking about a place to go surfing or are we talking about a shipping lane? ... What we've done is we've set the right balance. The 700MHz and below, that's the prime stuff for the long-haul licensed wireless broadband use ... creating an oasis for unlicensed use would be essentially preventing the use for licensed."
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