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At Sunday, AT & T finally flip the switch on its 4G LTE network - in Atlanta, Chicago, Dallas, Houston and San Antonio - almost a year after announcing plans to launch LTE.Although AT & T's marketing machine has relied on the company's current HSPA + network to fill the gap 4G, AT & T progress remains three-quarters of a year's delay Verizon's LTE network , which now covers more than half of U.S.Suffice to say that AT & T customers have been waiting a long time to LTE, 4G hunger more advanced and higher speeds it brings. Unfortunately, phone owners will have to wait a little longer. Getting the juices flowing does not mean LTE 4G network is ready for faster data digest smartphone.Wait a minute - my phone doesn't already have 4G?I just think it is. AT & T and LG phones and Samsung 4G Infuse excitement 4G running on AT & T's HSPA + network. Despite recognition of the ITU (International Telecommunication Union) 's HSPA + as 4G, is actually a totally different race from the network, and one that is technologically more related to what is 3G LTE.LTE What else do for me?The LTE rate thresholds are higher than HSPA +, and higher average data rate faster downloads, streaming rich media, and faster page load time. LTE can theoretically reach speeds of 100 Mbps downstream. At most, HSPA + can deliver up to 84Mbps down, with emphasis on theory. In practice, the results are often a fraction of that.For its part, AT & T has said previously that LTE could be more than three times faster than its HSPA + and up to 10 times faster than 3G. More specifically, a spokesman for AT & T told CNET that "we expect that most of our markets will speed 4G LTE in the downlink and 12 Mbps in 5 2 5 Mbps range uplink speeds." In comparison, Verizon Motorola Droid Bionic 10.18Mbps average 4.62Mbps down and during our tests in San Francisco.When I can start using LTE?At this time, as long as you have the AT & T USBConnect 4G Momentum, the AT & T Mobile Hotspot Raise 4G, Jetstream HTC or AT & T USBConnect adrenaline, which are two cards laptop, tablet and a mobile hotspot.Although these four LTE-ready devices are available now, not hold your breath that you download movies at high speed from your phone this weekend. Although technically the five cities will receive the kiss of LTE this weekend will not be able to use your existing "4G" (HSPA +) network phone in LTE. This will require an LTE-compatible phone, do not expect to see until closer to the holiday season and year-end. Company Director of Technology, John Donovan, confirmed that both in May.In addition, AT & T will expand its network to support sales of smartphones. The telecommunications plans to add ten markets by the end of 2011.Therefore, I can not use my current phone HSPA + LTE?No more than you can use your 3G HSPA +. They use different technologies.Ok, well, I can use on other networks LTE, Verizon and MetroPCS (and vice versa)?That's fighting words. Each wireless service provider protects your business. After all, you can not use your phone AT & T 3G T-Mobile, although they are both GSM networks and can not use Verizon's 3G phones on Sprint's turf, though the two are CDMA .If I have a phone HSPA +, I get a discount if the upgrade to LTE?Since the technologies are incompatible, to get a new phone list LTE will require the same process as the change to any other phone, a new contract for two years.Do all LTE mobile smartphones?At this point, AT & T refers to its LTE phones as smartphones. That makes more sense that way. LTE networks are new and the wireless spectrum is scarce. Carriers need more spectrum to build LTE, a difficult prospect given the limited supply until the FCC auctions for more. Owners of smartphones have increased demand for faster data and higher price with higher-priced smartphones bring you closer monthly plans of carriers cover the costs.That said, the first mobile LTE MetroPCS, Samsung Craft, a phone feature, not a smartphone. As LTE networks are completed, we will see a wider range of devices feed technology as it begins to replace the 3G data.What is AT & T in position HSPA +?Although LTE is AT & T long-term goal (a project that is scheduled for completion in 2013), HSPA + AT & T has been a lifeguard on the battle for 4G coverage. AT & T also is taking its HSPA + as a reserve network beneficial to the owners of mobile LTE for speeds faster than 3G when roaming outside the coverage areas of AT & T LTE
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