Monday March 26, 2012 – Myra Moore
As the broadcast regulators of the world ponder redistributing spectrum (700 MHz band changes in Europe and efforts to reallocate spectrum by the U.S. Congress) TV broadcasters are finding themselves in a tight spot. Arguments for moving some TV broadcasters from prime real estate on the band include claims of inefficient use of existing spectrum and a dwindling viewership of terrestrial television.
I’m not writing here about the merits or flaws of these arguments but to pose a question. If rules for the most efficient use of spectrum, which are, in part, justification for spectrum reallocation, are considered, shouldn’t all incumbent and potential spectrum holders be held up to the “efficiency light”? TV broadcasters may be able to improve on their efficient use of spectrum but point-to-point transmission for all traffic and content to smartphones isn’t an efficient use of spectrum, either.
This fight wouldn’t be occurring if not for the spectacular success of ultra-converged devices like smartphones and tablets. So if convergence can take place on the device, why can’t it take place on the transmission side? If we really want to make the most efficient use of spectrum, wouldn’t it make sense to use transmission techniques that best suit individual applications and their related content? Say, cellular transmission technology for voice, text, multiway audio and video communication; IP for select media streaming; and broadcast transmissions for live events and HD video content?
Putting aside, for a moment, the eye-roll inducing naiveté of this premise that doesn’t consider entrenched business models, current infrastructure, or the complexity and hyper political nature of forming government communications policy, it is already occurring incrementally on the device side.
In Europe and Asia there is a respectable market for receivers that tune one or more broadcast transmissions (satellite, digital terrestrial, for example) with IP streaming to offer more programming choices. IPTV operators have been combining QAM and IP delivery for some years now. And in Japan, smartphones receive cellular, IP and digital terrestrial signals.
Placing multiple tuners into a single device does little to improve efficient use of the spectrum, but it does illustrate an important point. There’s not a good reason why each transmitted piece of content to a single device must travel over a single type of transmission. Dynamic use of spectrum may not be easy from a business perspective, but it seems like if the privilege of having a spectrum license really involves an element of public trust, and not just a simple exchange of money, it should at least be taken into consideration.
