The International Telecommunications Union recently defined “LTE-Advanced” and “WirelessMAN-Advanced” as the only "official definitiions of "fourth generation" networks, automatically making networks operated by Sprint, Clearwire, Verizon, MetroPCS and all other operators of WiMAX and Long Term Evolution networks something other than standards-based "4G" networks.
Now the ITU has muddied the waters even more, saying that some "3G" networks are "4G," while the formal "pre-4G" networks in existence, or about to be built, also are "4G."
"As the most advanced technologies currently defined for global wireless mobile broadband communications, IMT-Advanced is considered as “4G”, although it is recognized that this term, while undefined, may also be applied to the forerunners of these technologies, LTE and WiMax, and to other evolved 3G technologies providing a substantial level of improvement in performance and capabilities with respect to the initial third generation systems now deployed," the ITU says in a new statement.
Huh? Some of us have had no issue with T-Mobile USA saying its new HSPA+ network offers "speeds equivalent to 4G," because the WiMAX and HSPA+ networks do offer comparable access speeds. But it does create a definitional muddle. It's one thing for marketplace contestants to position their networks in one way or another.
It might be quite another for a "standards" body to argue that 3G is 4G, existing 4G is 4G, and other possible networks might also be 4G.
What's the point of a standard when it isn't a standard any longer? In this case, it might mean that the "non-standard" standards will grow organically to the point that the newly-minted "4G" standard simply ceases to be relevant, much as adherence to the supposedly-"legacy" TCP/IP completely killed the shift to new protocols for layers one through four of the data communications protocols.
One might say the ITU flip flop is merely embarassing, and yet another example of standards bodies attempting to define "next generation" networks. It might result in something far more substantial than that. One might suggest that the whole effort now is questionable, in terms of helping shape the development of 4G.
Once critical mass developments around the real-world 4G and advanced 3G networks, services, revenue elements and devices, evolution will happen based on those factors. That doesn't mean operators will abandon the effort to keep developing more-capable networks. But as we have seen with TCP/IP and other data "standards," the market often decides what a standard is.
So far, the markets, and end users, have decided the path for next-generation networks, in large part. That could well happen here as well. No matter what the ITU thinks, if voluntary groups such as the GSM decide to evolve LTE in some other direction, the existence of a formal standard will not deter them.
That is not to fault the well-intentioned hard work of the technologists working on the standard. The point is simply that the global telecommunications industry has yet to prove it can devise a "next-generation" network standard that real-world operators actually embrace obviously, and with great commercial success. Instead, the pattern so far has been that network operators and end users sort of grope towards better solutions as best they can.
But it is equally true that, up to this point, real-world commercial success has not been driven so much by the standards as by solutions that users believe are workable and useful.
For a discussion f the ITU standards, read this: http://www.itu.int/itunews/manager/display.asp?lang=en&year=2008&issue=10&ipage=39&ext=html and this http://www.networkworld.com/news/2010/121710-itu-softens-on-the-definition.html.
For a discussion of the change, arguing that the ITU now has erred twice on the same subject, see http://www.abiresearch.com/research_blog/1520.
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