Mobile Completes First Successful LAA Test In US

Bruno Cirelli
Giugno 28, 2017

LTE-U is now live in select locations in Bellevue, Washington; Brooklyn, New York; Dearborn, Michigan; Las Vegas, Nevada; Richardson, Texas, and Simi Valley, California, with the company planning to roll-out LTE-U support to more locations later this year. More locations will be rolling out later this year, T-Mobile noted.

Ray added that both LTE-U and License Assisted Access (LAA) will be a "big deal" in terms of boosting the capacity and capability of wireless networks in 2018 and 2019, and said testing and trials of both technologies were ongoing.

LTE-U uses 5GHz spectrum to bolster existing LTE capacity. Further, T-Mobile says that it is the first national wireless provider to make LTE-Unlicensed (LTE-U) technology available to its customers. Previously, the mobile giant tested LTE-LAA at the Mobile World Congress in Barcelona earlier this year, reaching download speeds of up to 1Gbps by using LTE-LAA in tandem with CA, 4×4 multiple-input, multiple-output (4×4 MIMO) and 256 QAM functionality.

It demonstrated a 741Mbps download over 80MHz of aggregated spectrum in the 5GHz band.

LAA enables carrier aggregation than LTE-U, enabling mobile operators to combine larger amounts of unlicensed and licensed spectrum.

T-Mobile US started its testing in Los Angeles, Calif., on Sunday; while AT&T and Ericsson did their testing in downtown San Francisco. And to T-Mobile's credit, it does march to the beat of its own drum.

T-Mobile likes to talk up its network enhancements, and today the magenta carrier made two more announcements. Customers with compatible smartphones in these cities should see the benefits of this network automatically: LTE-U takes advantage of unused frequency from the 5 GHz band of spectrum (typically used by Wi-Fi routers) for faster LTE service.

As America's Un-carrier, T-Mobile US, Inc.

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