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T-Mobile Debuts 4x4 MIMO, 256 QAM to Double Speed

Sep 6, 2016, 8:52 AM by Eric M. Zeman

T-Mobile today announced two significant updates to its network: first, it has launching 4x4 MIMO, and second, it has increased its network footprint. The 4x4 MIMO (multiple-in, multiple-out) technology falls under the LTE-Advanced category. It doubles the number of channels between cell towers and cell phones, which improves capacity and speed. T-Mobile has deployed 4x4 MIMO across 319 cities. Moreover, T-Mobile is adopting 256 QAM (quadrature amplitude modulation) for downloads and 64 QAM for uploads. This technology boosts the number of bits that can be delivered per transmission. T-Mobile claims 4x4 MIMO and 256 QAM together can double speeds, pushing them up to 400Mbps. The 256/64 QAM technology is already live on half of T-Mobile's network, with the rest to follow by the end of October. The Samsung Galaxy S7 and S7 Edge will be the first to take advantage of this tech with a software update planned for October, with more phones to be supported later. Last, T-Mobile says its LTE network now reaches 312 million Americans, or 99.7% of Verizon's LTE footprint.

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tzsm98

Sep 7, 2016, 6:54 PM

Still Drops Calls

I don't know if any of this new-fangled stuff is live in Oklahoma City but as of yesterday, and since late June, I continue to see incoming calls routed directly to voicemail and to have calls fail to connect when I make them on their 4G network even with a cell amplifier properly deployed (three bars on window unit; 9 on house unit). If I absolutely HAVE to make a call I use a Samsung Katalyst, on UMA WiFi. I hope it isn't live here because that means there is still hope for improvement.

GettingSleepy

Sep 6, 2016, 3:38 PM

This vs Verizon's LTE-A

So how is this better than Verizon's?

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T-Mobile Debuts 4x4 MIMO, 256 QAM to Double Speed

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