ATT 94 meg 5G 230

Gordon Mansfield of AT&T "told [management] that I want every day that’s left in the year ... The equipment is literally coming off production lines and going into the field — we are not even using normal shipping channels.” AT&T is the first in the world to use 39 GHz, a remarkable achievement.

AT&T has one of the best and most experienced senior engineering teams in the world, but the first efforts are struggling. It claims the supplier - probably Ericsson - isn't ready with the equipment in the 39 GHz band. They refuse to provide information on network speed. It may be as low as 250 megabits, half the LTE speed at T-Mobile in Manhattan.

Lessons learned:  

 “Now, in mmWave, it’s a new frontier.  Sometimes you expect the signal to be there and it isn’t, so you have to adjust. As you move through the coverage area, you will be served by different beams, and you have to understand transitions between beams,” said Hristov. “RF engineers have to be hyper-accurate about placing and facing nodes … [because] if you don’t land on the right beam, you won’t get maximum performance.”

Mansfield also said, "The first IoT devices will be really high-end." Most users will "trade off capability for cost.” said Mansfield, noting that the first 5G IoT devices will be “really high-end.” I believe almost everyone will continue to use Bluetooth, Wi-Fi and 4G for IoT for years. 5G units will not just be expensive. They will be large and run down the battery. 

Todd Zeiler confirms that mmWave and sub-6 are very different. "We need to explain that we have a fork in the road now. Millimeter wave will have a similar improvement, but sub-6 is about a more efficient interface with improved latency — it’s not about speed-doubling." 3GPP did the world a disservice by calling both 5G.

The AT&T folks agree there's a long way to go. Hristov notes, “It will take years to get to the point where you have the right tooling to accurately predict what you are trying to cover and serve," Zeiler adds, "software upgrades in 2019 that enhance beam-forming capabilities not expected to be mature until sometime in 2020."  

The good news: "Coverage and data rates have generally been better than expected."

Quotes from 5G Networks Under Construction by Rick Merritt of EE Times.

The picture is a pre-launch demonstration by AT&T shot  by Corinne Reichart of ZD Net

 

dave ask

@davescomm

Details on all 5G phones, as prices drop to $285 ** All actual 5G networks worldwide ** Facebook ordered to repost Italian fascist page. ** Apple China sales down 35%** Qorvo sees 300M 5G 2020 & 750M 2023 mmWave <10%

** Bharti demands India Gov more than double prices and enforce cartel. Sunil Mittal "Situation is dire. It is a matter of survival for everyone." ** Wi-Fi 6 meets ITU 5G criteria @stephenjcrowley ** Samsung $8B for Chinese memory plants ** Morgan paying billions for Altice fiber

Dec 10 Sprint bringing $300-500 5G phones to US 2020. Nokia, Lenovo, HMD ** H., Apple, and AMD doing 5 nm test runs on TSMC's 5 nm. Early results are 15-30% better than 7 nm ** AT&T low-band 5G built to >65% US. Speeds slower than 4G at launch. ** 

Verizon CEO Ronan Dunne: >1/2 VZ 5G "will approximate to a good 4G service" Midband in "low hundreds" Mbps ** CFO John Stephens says AT&T is going to cut capex soon. ** Huawei in 16 days sold 1,000,000 5G Mate 20s.  

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Welcome  Asia is installing hundreds of thousands of 5G radios and adding 5G subs by the tens of millions. The west is far behind. 200,000,000 in 2020

The demand is there, and most of the technology works. Meanwhile, the hype is unreal. Time for reporting closer to the truth.

I'm Dave Burstein, Editor. I've been reporting telecom since 1999. I love to hear from readers, especially when you find an error. daveb@dslprime.com

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analysisbranch.com,

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