February 27, 2018
BARCELONA -- MWC 2018 -- T-Mobile pumped the gas on its mobile 5G deployment plans on Tuesday evening -- promising to introduce a next-gen network supporting both high- and low-band 5G in 30 cities in the US in 2018 -- but it won't go commercial with service until devices are available in 2019.
T-Mobile US Inc. 's CTO Neville Ray told reporters in Barcelona Tuesday that the "Un-carrier" will deploy 5G on 600MHz, 28GHz and 39GHz frequencies in those cities this year, including New York, Los Angeles, Las Vegas and Dallas.
The infrastructure will be split "roughly 50/50" between Nokia Corp. (NYSE: NOK) and Ericsson AB (Nasdaq: ERIC). For instance, he said, NYC is an Ericsson city, while Nokia will handle Dallas. (See Nokia makes 5G waves with its ReefShark chip and T-Mobile, Nokia Start Nationwide US 5G Rollout.)
The 600MHz push has already started with "5G-ready" LTE upgrades in the field. The millimeter-wave infrastructure updates will have to wait a little longer, as Ray explained to Light Reading after the press conference.
"To be honest, standards-based 39GHz and 28GHz gear will only be coming in the fourth quarter of this year," the CTO noted. He claimed that T-Mobile has 200MHz of millimeter wave spectrum "across dense urban pops" to play with.
Initially, T-Mobile plans to deploy mmWave to add speed and capacity in urban areas, while Ray acknowledged that 5G small cells might only see a coverage range with 200 meters.
He was also cautious about what exact speeds mobile 5G will offer initially. "I don't know," he said in response to questions, while suggesting that competitors may be over-promising with talk of "multi-gigabit" speeds. Ray suggested he "would love to see" a tripling of average 4G LTE speeds with the initial 5G service.
"Are we going to see average speeds move up by tens of megabits per second? For sure," he said. But he noted that he couldn't promise this would be consistent, at least initially.
"There's a lot to learn" with millimeter wave, he stated, which is partly why T-Mobile is going to deploy in NYC and other big cities, rather than smaller markets, at first.
Ray couldn't resist taking a pop at AT&T's announced mobile 5G plans at the press conference: "Why are we in New York and not Waco? Because New York matters."
As for delivering a commercial 5G service with devices that can run on the network, Ray stated that he was "confident" that "by this time next year," 5G smartphones will be available.
— Dan Jones, Mobile Editor, Light Reading
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