BT LTE Coverage Open SIgnal 180Fotis Karonis sees everything before that as "proof of concept." He's Managing Director of Mobile and also IT, where he's advancing Software Enabled Networks. He believes BT will be first in Britain, implying the other British companies will be later. He didn't say the "first commercial" cells in 2020 will be many, so his date doesn't conflict with the 2022-2024 plan for volume mmWave from NTT's Seizo Onoe.

He acknowledges that BT still has a long way to go in LTE deployment. While they claim 99% population coverage with LTE, these maps from Open Signal suggest they are not using a robust measure of actual coverage. The map above is based on tested connections to LTE. Below, the 4G and 3G maps are side by side. Note how many places 3G is working but you can't even get 4G. That's strongly suggestive of either a crowded LTE network or optimistic coverage estimates.  

Karonis is strong on the need for reliability, particularly as BT adds security services as customers.

Stanford Professor Paulraj has been particularly strong on the need for reliability as we become more dependent on telco networks. Everyone agrees that's critical for 5G, but we'll see whether networks are built to that standard.   

In this video interview with Justin Springham of Mobile World at HWMBBF16, Fotis is clearly talking about mmWave as 5G but not Massive MIMO. At that show, I learned that both Softbank Japan and China Mobile on ordering thousands of Massive MIMO cells, getting 3X to 10X capacity improvements with better to follow. I think if he thought about it, he'd include Massive MIMO in "5G," and make clear when he's discussing mmWave exclusively. Here are the video and the two maps.

BT LTE Coverage Open SIgnal 325BT 2G 3G coverage Open Signal 325

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.