The carrier is spending $7 billion to build its LTE network, using unused 1900MHz spectrum. And if the company can get regulatory approval, it will use spectrum in the 800MHz range for LTE service as well, by early 2014. That spectrum is currently used by Sprint for its IDEN network which is being phased out by 2013. According to Sprint CEO Dan Hesse, the carrier will start an "aggressive rollout" of LTE with the first devices for it launching in the middle of next year. The problem, according to Reuters, is that Sprint has committed only 10MHz of spectrum to LTE while Verizon and AT&T are working with twice that amount of spectrum for their respective LTE build-out. As a result, should LTE become popular among the carrier's customers, Sprint might find itself with a 4G pipeline offering its customers slower browsing speeds and putting a huge strain on the network.
If this scenario plays out, the more popular LTE becomes at Sprint, the slower the service might become. Tolaga Research analyst Phil Marshall says that the carrier's version of LTE is "bare-bones" and without the spectrum to expand, speeds will have to come down as the number of users go up. Marshall says that in this situation, Sprint will have to stop offering unlimited service plans. "Unlimited is going to kill them, I think they're going to have to back off from the all-you-can-eat plan," says the analyst.
While other analysts say that Sprint will have no choice but to kill off the unlimited service plans, it could still have a selling tool by offering higher caps than the competition, which could still drive business over to the mobile operator. Currently, AT&T, Verizon and T-Mobile offer tiered pricing which punishes those going over the data cap by charging a penalty fee or by throttling data speeds in certain circumstances until the current month is over. Speculation that Sprint would start throttling data this past summer obviously turned out to be incorrect.