T-Mobile, Ericsson Claim 1.1 Gbps in Wireless Test

Dec. 5, 2017
T-Mobile (NASDAQ:TMUS) and Ericsson (NASDAQ:ERIC) say they have achieved speeds of 1.1 Gbps in lab tests of 12-layer Licensed Assisted ...

T-Mobile (NASDAQ:TMUS) and Ericsson (NASDAQ:ERIC) say they have achieved speeds of 1.1 Gbps in lab tests of 12-layer Licensed Assisted Access (LAA) wireless technology on unlicensed spectrum.

Neville Ray, chief technology officer for T-Mobile, said: "T-Mobile has built the nation's fastest LTE network by innovating and bringing new technologies to market for our customers. This LAA technology builds upon our deployments of 4x4 MIMO and 256-QAM and will give customers even greater access to near gigabit speeds in 2018."

Fredrik Jejdling, executive vice president and head of networks at Ericsson, said: "Breaking the 1 Gbps mark means that commercial gigabit speeds are not far from reality for many broadband users, with our LAA and MIMO technologies as key enablers. It is also an example of how innovatively we work with partners to push the boundaries of technology and achieve new milestones."

The demo took place at T-Mobile's Bellevue, WA, lab using Ericsson Radio System and TM500 network test equipment from Cobham Wireless. The data speeds were achieved by combining several LTE technologies including 256-QAM, 4x4 MIMO, and LAA by aggregating two licensed carriers and three unlicensed carriers.

The use of the LTE technologies on unlicensed spectrum is intended to complement licensed spectrum and make it possible for a larger number of operators to reach gigabit speeds in their networks.

LAA has been demonstrated previously on 10 layers, reaching downstream speeds of up to 1 Gbps. Extending to 12 layers enables speeds exceeding 1 Gbps.

The Ericsson Radio 2205 is designed to support LTE on the 5 GHz unlicensed band in outdoor micro cell environments. Using LAA, the unlicensed carriers on the radios can be aggregated with licensed carriers on the micro cells or on nearby macro cells.

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