With iPhones already earning the reputation as ‘bandwidth hogs’, and networks with heavy smartphone use already under intense pressure, devices like netbooks and USB dongles are adding even more stress to carriers’ infrastructure.

With today’s introduction of the Apple iPad - a device for which users’ quality-of-service expectations are extremely high – operators’ capacity challenges are mounting and may push their networks over the edge.

What we know about the Apple iPad:

Every iPad has Wi-Fi, but Apple also has models with 3G.

There are two wireless data plans. The first provides up to 250 MB per month for $14.99. The second provides unlimited data for $29.99. AT&T is the exclusive service provider and includes free use of AT&T Wi-Fi hotspots. In the U.S., wireless operators typically charge about $60 a month for a laptop data plan.

There is no contract — service is prepaid, so consumers can cancel any time. That’s a big change from the iPhone. All iPad 3G models are unlocked, so consumers can use them with any carrier that supports micro-SIM technology.

The question is: are carriers’ networks equipped to handle another, even more massive, explosion of mobile data consumption?

If Apple’s new iPad lives up to the usage patterns – and more importantly – the bandwidth problems of the iPhone, then the answer is: probably not.

In a recent Wall Street Journal blog post, Niraj Sheth wrote:

…the iPhone is hardly the kind of data guzzler the tablet is widely expected to be. After all, it’s one thing to squint at movies on a 3.5-inch screen and quite another to watch them in a relatively cinematic 10 inches.

With this in mind, carriers can surely expect a ‘secondary’ explosion in video and other multimedia traffic. They need to prepare their networks now in order to avoid consumer backlash. Another quantum leap in data traffic will not only strain the network - and thus the user experience - but will also strain profit margins due to out-of-control infrastructure costs.

We should expect to see the wireless industry put a priority on intelligently managing network traffic and experimenting with new ways to curtail the margin squeeze - whether through tiered pricing plans, stricter enforcement of fair use policies or new value-added services.

-Stacey Infantino

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AT&T’s making MMS available on the iPhone is big news – something for which its users have clamored. Of course, AT&T isn’t the only carrier that is concerned about how to make sure its network is prepared for an increase in multimedia traffic. To better understand why carriers are justifiably nervous, let’s take a look at the following data which represents traffic over a 24-hour period in a cross-section of some of our larger customers’ 3G networks.

Note that 90% of the users are browsing the web, which accounts for 40-50% of the total traffic.

Streaming video accounts for 30-40%, but that is generated by less than 1% of the users. It’s not difficult to do the math and envision the magnitude of the impact as more users consume video and other multimedia applications.

P2P file sharing is also a bandwidth hog, with less than 1/10 of 1% of users accounting for 5-10% of the total traffic.

It is clear that intelligent traffic control is necessary, enabling carriers to enforce fair use policies adaptively without damaging customer relationships. By increasing network efficiency and capacity, operators can manage the effects of continued traffic growth within the footprint of their existing installation and scale their networks ahead of rising data usage trends. This will also help to ensure a compelling user experience.

-Stacey Infantino

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