Obama Admin. Aims to "Share" Combat Aircraft Training Spectrum
March 28, 2012 3:51 PM
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Block of spectrum is currently occupied by USAF and other federal users, could soon see smartphone use
America's largest smartphone carrier, Verizon Wireless -- a joint venture between Verizon Communications Inc. (
) and Vodafone Group Plc.'s (
) -- has been active in warning of a dire "
" that could cripple expansion and upgrades of its U.S. wireless network. AT&T Inc. (
), the nation's second largest carrier,
voiced similar concerns
I. TV Spectrum Reauction Gets the Greenlight
The Obama administration has
been on top of this issue
, and has proposed some solutions, although they are not without controversy. His official goal is to double the amount of spectrum available to telecommunication companies.
To achieve that end he's proposed a special
U.S. Federal Communications Commission
, which would allow TV providers to
sell their unused TV spectrum
left over from the
transition to digital
. The auction was recently authorized by Congress as a line item on the payroll taxcut extension bill (officially "
The Middle Class Tax Relief and Job Creation Act
The contentious TV spectrum reauction narrowly squeaked through Congress.
[Image Source: U.S. Congress]
However, many remain concerned that the auction will
create interference problems with TV broadcasts
. These fears are accentuated by the fact that "Obama's" FCC recently
let LightSquared, Inc.
heavy donor to the Obama campaign
-- deploy a risky satellite LTE project, which was estimated to cause catastrophic interference with
75 percent of GPS receivers
. Critics are also concerned that the authorization could offer a backdoor to mandatory spectrum seizures.
II. Attention Turns to Federal Spectrum Reallocation, Sharing
A key second-tier of the spectrum push is in scrounging up unused or relocateable spectrum in the federal government's current holdings.
U.S. Department of Commerce
National Telecommunications and Information Administration
(NTIA) has just released
evaluating the 1755–1850 MHz block (95 MHz total) for reallocation.
The block is currently allocated in chunks to 20 federal agencies, with 3,100 total chunks granted. The spectrum is being actively used by law enforcement surveillance, military tactical communications, air combat training, and precision-guided munitions.
While the NTIA report indicates that there is strong promise for reallocation, it urges caution in considering this an "overnight" solution. It indicates that reallocation could take "more than a decade". And it says that complete reallocation may be "no longer feasible".
As an alternative, it suggests a slow reallocation process, piece by piece. In the meantime it advocates a "sharing" solution. Private-public sector spectrum sharing is a relatively new development. And it won't necessarily be easy. Sharing brings a lot of new complications to the traditional scheme of direct allocation -- for instance, who gets priority if a commercial-utilized chunk of spectrum suddenly is needed for federal use.
It will take over a decade to reallocate and/or share the 115 MHz of spectrum in the 1755-1850 MHz block, which is currently used for federal purposes, such as air combat training.
[Image Source: USAF photo/Senior Airman Clay Lancaste]
Nonetheless, sharing could turn President Obama's 10-year spectrum doubling proposal from unlikely to very doable. The NTIA has already advised reallocation/sharing of a separate 115 MHz block of spectrum, so the total proposed push would be a major chunk of 210 MHz. That makes the total proposed reallocation reach 40 percent of the president's goal (500+ MHz).
While that figure may be a bit overoptimistic given that the contingent word in the 1755 MHz block's sharing/reallocation proposed scheme is "partial", the NTIA still has approximately 2,000 MHz worth of federally allocated spectrum chunks to look at. So the possibility of eliminating federal spectrum waste via public-private spectrum sharing and/or direct reallocation could yield fruit for years to come.
While the finer details must certainly be debated and critiqued (recall, the government did accidentally sell a key chunk of spectrum used for
B2 stealth bomber communications
), the efforts are certainly worthwhile and warranted. While
the issue of "spectrum hoarding"
by large carriers does need to be addressed, the fact remains that faster and more reliable wireless internet services to devices invariably requires more spectrum. Thus whether or not spectrum is running out today, it will almost certainly run out tomorrow (metaphorically speaking), and it's good to start preparing for that inevitability.
NTIA [press release]
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RE: Just to point out the obvious....
3/29/2012 5:25:57 PM
Most military grade hardware that operates using radio frequencies is designed to not "share". That wimpy little Cell Phone is going to have a tiny fraction of the signal power of its military spec equivalent. Any military equipment in use will effectively jam the civilian lines because it will simply overpower them. Civilian spec equipment must meet strict FCC regulations that limit the power and output of a radio frequency device, the military has no such restriction and never will.
RE: Just to point out the obvious....
3/29/2012 9:32:59 PM
Exactly! And what is going to happen when a bunch of people are streaming the last seconds of the NCAA tournament on their phones and a military transmission crashes the feed just as the last second winning shot is being made? I would hate to be the internet provider on that day lol.
RE: Just to point out the obvious....
3/30/2012 5:37:29 AM
I dunno where to start really.
Once again going back to the usefulness in an actual combat situation - any military system that is solely reliant on brute electronic force to suppress others so it can operate will fail dismally in a warzone as all the opposition has to do is find more powerful jammers to drown out the useful transmissions. Jammers will always be able to generate more powerful noise than any transmitter will signal.
The military systems do have high powered capabilities - but that is to counter jamming by amplifying their signal to a level where it stands out from the noise. That capability is only used when it needs to be used.
For instance, the Air Force transmissions are now specifically designed to be low powered and highly compressed databursts, so that signal detection and triangulation is much tougher. But extremely high powered signalling is still possible - its just not preferable whatsoever (and would not be used in training).
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