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Sunday, December 03, 2006

Great Future of Wireless Broadband (4) WiMax, 3G and 4G

WiMax will eventually engage with 3G in the field of voice communication.

[+] The declining communication revenue

Imagine this: you will be able to make mobile phone calls for unlimited minutes so long as you pay a fixed amount of money each month; if you want to watch a movie or download music or use other value-added services, you pay additional charges, but there's no such costs as communication fee or transmission fee any more.

For telecom operators, this is a nightmare. No more are the good days of waiting for subscribers to make phone calls and printing phone bills calculated on talking minutes. They now have to earn their meals by providing sufficient contents. But that is too troublesome and not the specialty for operators. Worst of all, they will have to share money with content providers.

This is what's happening to your phone line at home. For an ADSL line, the telecom operator is able to charge only two types of fee: the lease for the line (including voice and data services) and the Internet access fee. Both are almost fixed each month.

If, instead of dialing traditional phone calls, you use the line only to dial Skype VoIP calls, you will be able to use both the Internet and the voice services with that amount of monthly payment. Eventually, telecom operators will have to sell IPTV to you to look forward to earning more through contents.

Yes, wireless bandwidth resources are limited and incomparable with the cable broadband. But who can say that some kind of a novel technology will not appear in the future to change all this? After all, consumer demands are always there and the amount of bandwidth that a consumer can buy with each dollar has been on the rise over the past years.

[+] The unpredictable future of WiMax

In the field of 4G, a concept which is not even clearly defined so far, players are already fighting for the ability to set the standards. Thanks to the promotion of Intel, WiMax has got the support of many telecom equipment suppliers and handset manufacturers, and is now the hottest bidder for the 4G technology.

Intel is going to embed WiMax into its notebook computers, in a hope to get the popularity that WiFi once had. Despite the slower-than-expectation progress, the ambition of the giant should never be ignored. In addition, Nokia has also got into the line of supporters, announcing its plan of introducing WiMax handsets.

However, in view of the current status of 3G services around the world, WiMax, which claims to be 10 times faster than 3G, is really in an awkward position. As 3G has been in commercial use for only a few years, mobile operators who are yet to retrieve the return of their investments are really hesitating about making additional investments in WiMax.

A more possible solution is to issue licenses to fixed-line telecom operators or emerging mobile operators and allow them to build WiMax APs. As a matter of fact, struggling to stem the multi-year decline in revenue, fixed-line operators have been longing for accessing the mobile market for many years. For them, WiMax could be an opportunity.

When mobile operators have little interest in WiMax, a fallacy has appeared in the market, holding that WiMax is a complementary service, instead of substitute of 3G. This has rendered wider imagination for WiMax, particularly in the China market, where 3G has not been launched yet.

[+] 3G and WiMax: foes, not friends

The two services are considered by some to be complementary because the priority of 3G is the mobile voice communication, while WiMax, with its advantages in data transmission, can provide notebooks with the Internet access. In this regard, mobile operators could build two types of network to separate the services: "3G serves people on feet, and WiMax serves people on seats."

In Korea, dual-mode handsets supporting both 3G and WiMax are already available in the market. It seems possible for both to co-exist peacefully? However, we see now that the two technologies are born to fight each other to death and there could never be such a thing as complementation for each other in the real market.

First of all, if fixed-line operators get the WiMax license, they will use the data transmission capability of WiMax to provide wireless VoIP services, which is bound to dig a portion of subscribers away from mobile operators. With so many world-leading suppliers involved in the development of WiMax handsets, the supply of terminal devices will not be a problem sooner or later.

It is reported that the data transmission cost of WiMax is only one tenth of that of 3G. Maybe the WiMax community led by Intel is too optimistic. But if it were true, the fee rate of WiMax-based VioP could be as low as one tenth of that of 3G too.

If the operators that have got the license forget the fact that the number of mobile phone subscribers is far larger than that of notebook users, and only plan to provide
Internet services to notebook or PDA users with WiMax, then they must be crazy. WiMax will definitely engage with 3G in the field of the voice communication.

[+] Mobile phone flat rate with unlimited minutes

Were WiMax to appear a little bit later, the follow-on versions of 3G might have the chance to provide larger bandwidth and a more comprehensive IP environment; or, in plain words, a 4G network environment upgraded from 3G might be able to provide the VoIP service, thus render WiMax unnecessary?

Could VoIP all-you-can-eat monthly flat rate become a reality in the 4G time? It will have to depend on how low the transmission cost is. Even if it is low enough, the 4G-based VoIP service might still be charged by minutes in the initial stage. Operators will not withdraw to the bottom line of monthly flat rate at once, so long as the fee rate is acceptable to consumers.

Yet for 4G Internet accessing for notebooks, which does not go through a phone number, operators might consider to offer monthly flat rate. Although 4G is a comprehensive IP environment, operators might still want to separate the Internet access from the voice communication after taking into consideration the reality in the marketplace.

However, there's one thing uncertain here. Today, WiFi handsets with embedded Yahoo! Messenger or Skype are already available. Such handsets will be supported in the 4G wireless network too. With such handset and access to the 4G network of an operator, consumers would be able to make phone calls free by only paying the monthly fee.

Such handset might not have their own phone numbers, or would have to go through troublesome procedures (e.g. SkypeIn) for the numbers, or might encounter the containment from telecom operators. But anyhow, the competition is there and operators have no way to pass it by. It will eventually drive 4G VoIP toward the destiny of monthly flat rate.

The trick is that if 4G really offers monthly flat rate, it will deprive Skype of its room of survival on the mobile terminal. How could Skype, a service that depends on consumers' hunger for lower fee rates, expect to survive any longer once the mobile phone service is as cheap as what monthly flat rate offer?

To be able to make free phone calls has been the dream of mankind, and unintentionally become the driver for the evolvement of the communication technology. Telecom operators who depend solely on the switching of phone calls or transmission of data for their income would face severe challenges sooner or later. They will have to transform into service providers with diversified abilities. ( 2006/12/03 - By Digitalwall.com - Way to China Internet/Telecom )