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700mhz

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T-Mobile Updates Its Xperia Z3 To Lollipop, Throws In Band 12 LTE Support For Good Measure

Most over-the-air updates include a few bug fixes, maybe a new bloatware app or two, and are thus not really worth getting excited over. Not so for the latest addition to T-Mobile's customized version of the Sony Xperia Z3. In addition to the long-awaited upgrade to Android 5.0, today's update flips a software switch that enables access to band 12, the 700MHz spectrum that T-Mobile began using for LTE earlier this year.

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T-Mobile Will Buy Over $3 Billion In 700MHz Spectrum From Verizon For LTE Expansions

T-Mobile has rapidly expanded its LTE footprint in the last year, but there is only so much the carrier can do with existing spectrum licenses. It was previously rumored the Un-carrier was working on a spectrum deal with Verizon, and now its official. T-Mobile will hand over AWS licenses worth $950 million and throw in another $2.365 billion in cash to get its hands on new Block A 700MHz licenses.

700MHz

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Qualcomm Working On A Chip That Would Support Multiple LTE Bands, Carrier Networks

According to a recent FCC filing, Qualcomm is hard at work on a new radio chipset that would support seven spectrum bands, including three below 1GHz. The introduction of this chipset could offer an effective solution to LTE spectrum fragmentation, which is a thorn in the side of manufacturers looking to cleanly execute broad product releases.

LTE fragmentation has also stirred debate among carriers, though. Smaller carriers operate within the Lower A block of the 700MHz band, in Band Class 12 while larger carriers like AT&T operate on the Lower B and C blocks in Band Class 17.

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PSA: Verizon Locking Bootloaders On LTE Devices Likely Does Not Violate FCC Block C Spectrum Rules

It seems there's been some renewed interest in the subject of Block C LTE "no locking" provisions after news that the Motorola RAZR will come equipped with a locked bootloader per Verizon's request. About four months ago, I published an article on this very topic. To summarize: Verizon can basically do almost anything it wants with handsets on its network in the name of reasonable network management - subject to a few limitations and caveats.

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