OnoeMost previously expected deployments before 2022 to be extremely modest. The highly respected NTT DOCOMO CTO in 2015 predicted little mmWave mobile before 2022-2023. That became the common wisdom among leading engineers despite the massive pr it would be sooner. At the Brooklyn 5G, he acknowledged advances have been made and he now expects sooner. Ted Rappaport is no longer the outlier on projected volume deployment. Nothing is certain yet, but many think Onoe is on target. 3GPP, under pressure from telcos, is cooperating.

3GPP, under pressure from telcos, is cooperating. They are expediting the ridiculously named "5G New Radio Non-standalone." That's mostly a 4G LTE system with some software tweaks and the ability to use mmWave as well as Wi-Fi spectrum. The existing LTE network will handle the hard stuff,

such as handovers when a car driving 60 mph rapidly crosses cells. Existing LTE will "control" the network; the extra spectrum will add more data capacity. Inoe in his 2016 presentation "5G Myths" dispelled any thoughts of shutting down LTE for a decade or more. That too has become common wisdom, so the telcos can depend on LTE for the control plan for many years.

"Non-standalone" will have additional capacity from the added spectrum, possibly 5 gigabits to 200-600 homes. Towers will have generally transmit about a gigabit to 2-4 times as many. Unlike "New Radio" in 3.5 GHz spectrum, it's not "fake 5G." Careful thinkers call "Non-standalone" and "fixed 5G mmWave" Phase One. The full 5G won't be available until Phase Two and Three next decade.

Intel is promising mmWave chip samples later in 2017 for deployment. Qualcomm is similar. Both are expecting production chips in 2019. The first chips will almost certainly be power-hungry, hot, and require large batteries. Some will get to testing and perhaps early adopters in 2019, making 2020 for a wider deployment perhaps reasonable.

Verizon I believe has decided to go ahead with a ~$20B small cell network to cover 1/3rd to 1/2 of the U.S. between 2019 & 2022. Officially, all they promise is "commercial deployments of fixed wireless mmWave & 4G small cells in 2019." Mobile 5G will be added when ready. They already are going full speed ahead with the small cells. Equipment is in place in 11 cities and the official announcement will be very soon. The vendors (Ericsson, Nokia, Samsung) are all promising an easy and inexpensive upgrade to mmWave mobile. 

Massive mobile capacity ~2020 is extremely encouraging to Verizon, who just had their worst quarter in 20 years. Verizon's entire business model is based on charging premium prices for a better network. T-Mobile's network is now so close to Verizon performance in most cities customers are going for the lower prices. That's an important reason Verizon is rushing; they need to maintain an image of superiority.

10,0000+ engineers are working away but nothing is guaranteed.

dave ask

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The 3.3-4.2 spectrum should be shared, not exclusively used by one company, concludes an important U.S. Defense Innovation Board report. If more wireless broadband is important, sharing is of course right because shared networks can yield far more

It does work! Verizon's mmWave tests over a gigabit in the real world. 
The $669 OnePlus 7 Pro outclasses the best Apples and probably the new Galaxy 10 or Huawei P30 Pro. Optical zoom, three cameras, liquid cooling, Qualcomm 855 and more.
Korea at 400,000 5G May 15. Chinese "pre-commercial" signing customers, 60,000-120,000 base stations in 2019, million+ remarkable soon. 
5G phones Huawei Mate 20, Samsung Galaxy 10, ZTE Nubia, LG V50, and OPPO are all on sale at China Unicom. All cost US$1,000 to 1,500 before subsidy. Xiaomi promises US$600.
Natural monopoly? Vodafone & Telecom Italia to share 5G, invite all other companies to join.
Huawei predicts 5G phones for US$200 in 2021, $300 even earlier
NY Times says "5G is dangerous" is a Russian plot. Really.
Althiostar raised US$114 million for a virtual RAN system in the cloud. Rakuten, Japan's new #4, is using it and invested.
Ireland is proposing a US$3 billion subsidy for rural fibre that will be much too expensive. Politics.
Telefonica Brazil has 9M FTTH homes passed and will add 6M more within two years. Adjusted for population, that's more than the U.S. The CEO publicly urged other carriers to raise prices together.
CableLabs and Cisco have developed Low Latency XHaul (LLX) with 5-15 ms latency for 5G backhaul,  U.S. cable is soon to come in very strong in wireless. Details 
Korea Telecom won 100,000 5G customers in the first month. SK & LG added 150,000 more. KT has 37,500 cells. planning 90% of the country by yearend. 
The Chinese giants expect 60,000 to 90,000 5G cells by the end of 2019.
China Telecom's Yang Xin warns, "Real large-scale deployment of operators' edge computing may be after 2021." Customers are hard to find.
Reliance Jio registered 97.5% 4G availability across India in Open Signal testing. Best in world.

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Welcome On Oct 1, 2019 Verizon turned on the first $20B 5G mmWave network with extraordinary hopes. The actual early results have been dismal. Good engineers tell me that will change. Meanwhile, the hype is unreal. Time for reporting closer to the truth.

The estimates you hear about 5G costs are wildly exaggerated. Verizon is building the most advanced wireless network while reducing capex. Deutsche Telekom and Orange/France Telecom also confirm they won't raise capex.

Massive MIMO in either 4G or "5G" can increase capacity 3X to 7X, including putting 2.3 GHz to 4.2 GHz to use. Carrier Aggregation, 256 QAM, and other tools double and triple that. Verizon sees cost/bit dropping 40% per year.

Cisco & others see traffic growth slowing to 30%/year or less.  I infer overcapacity almost everywhere.  

Believe it or not, 80% of 5G (mid-band) for several years will be slower than good 4G, which is more developed.