3G iPhone's WiMAX rumors
Thursday, May 1, 2008
Craig Mathias wrote a piece last week on 802.21, a convergence standard promoted by the likes of InterDigital and Intel. Folks at 9to5 Mac immediately saw the iPhone connection and hatched what I thought was a highly speculative story. That Apple will push this yet official standard to include WiMAX into its impending 3G iPhone, based on convenient interpretation of a series of events, is the work of a very creative mind.
For the uninitiated, 802.21 is one of the various standards being promoted for convergence. So, if the infrastructure is in place, devices using this standard will perform ‘vertical’ handovers across the standards such as WiFi, WiMAX and 3G.
Before I move on to argue why I don’t see signs of a WiMAX-enabled iPhone yet, I should mention that as a fan of the convergence movement, I would love for one of the convergence standards to succeed. The idea of an iPhone enabling this seamless mobility does sound very appealing to me. Just that I don’t see the impending 3G iPhone implementing it to include WiMAX.
Let me dissect the evidence that the 9 to 5 Mac article presents to defuse the speculation –
“In March, that company revealed it has signed-up Apple (and RIM) as a licensee for its 3G technologies….. This news generated sparks of speculation that InterDigital’s SlimChip architecture might be deployed in products from Apple.”
The license agreement between Apple and IDCC is perhaps two-fold. Firstly, it is for the 3G intellectual property. Secondly, as I have written earlier, the iPhone will most likely have Infineon’s 3G chipset. Infineon, in turn, uses InterDigital’s 3G stack for which the latter gets a per-unit royalty. I think that Infineon’s solution has InterDigital’s contribution to the baseband design. But to think that the SlimChip will be central to the iPhone based on these signs is a stretch. In any case, 802.21 support or WiMAX is independent of SlimChip. You can read more about my iPhone 3G speculations here.
Promoting a mobile standard is a much more complicated task. With WiFi, you are talking about interfacing with the consumer directly. With mobile-phones, the effort needs the confluence of the chipset vendor, handset vendor and the carrier. Also, InterDigital joined the WiFi alliance because of the technology’s role as a key component for 802.21. Neither this nor its modem technology licensing moves should relate to the iPhone.
While the idea of WiMAX+3G is great on paper, the logistics involve high-levels of risk that Apple will be unwilling to take. Platform stability and testing issues will limit Apple’s short-term options for iPhone. Hence, Infineon and most others who have already been designed into the current iPhone will retain their places. We will perhaps see GPS capabilities, but WiMAX, in my mind, is a non-starter for this version.