millimeter wave – IEEE ComSoc Technology Blog

Huawei 5G “Wireless to the Home” Trial with Telus in Canada + U.S. Sales?

Posted on February 19, 2018 by

Huawei and Canadian telco Telus will work together on a trial for providing 5G wireless connectivity to residences in Vancouver, Canada. The companies will use tested millimeter-wave technology with 800 megahertz of bandwidth on the 28-gigahertz spectrum.

The end-to-end trial is based in the “5G Living Lab” — a downtown co-venture between the two companies — and conducted in the homes of Telus employees based in the city.

Officials said the system could provide 5G service similar to fiber networks while helping reduce operator costs and bolster accessibility. Initial trials conducted in December saw download speeds of more than 2 Gbps.

“This trial represents continued progress toward the launch of 5G as we start to replicate both the in-home experience and network footprint we will see when 5G becomes commercially available in the near future,” Telus CTO Ibrahim Gedeon said in a statement.

The latest trials are based on successful 3GPP-compliant millimeter wave specification tests conducted by the companies last June. They operate with 800 MHz of bandwidth on 28 GHz spectrum and utilize Massive MIMO, F-OFDM, Polar Code and other technologies. The tests also use a specially-designed 5G Customer Premise Equipment unit and a 5G gNodeB built at the Living Lab.

The companies said the “Wireless to the Home” trial is believed to be the first of its kind in North America and among the first in the world.

“Millimeter wave technology will be an important tool in ensuring widespread deployment of 5G technology in Canada,” Huawei Wireless CTO Wen Tong said in the statement. “Huawei’s 5G solutions and terminals will enable 5G coverage over a neighborhood or small community cost-effectively, while providing more convenient and high-speed home broadband internet access services.”

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Separately, U.S. intelligence officials said “don’t use Huawei products” in testimony last week before the Senate Intelligence Committee.

“We’re deeply concerned about the risks of allowing any company or entity that is beholden to foreign governments that don’t share our values to gain positions of power inside our telecommunications networks,” FBI Director Chris Wray said. “That provides the capacity to exert pressure or control over our telecommunications infrastructure. It provides the capacity to maliciously modify or steal information. And it provides the capacity to conduct undetected espionage.”

NSA Director Michael Rogers added, “This is a challenge I think that is only going to increase, not lessen over time for us. You need to look long and hard at companies like this.”

Based on the information leaked out of the agency by Edward Snowden, the NSA conducted an operation dubbed Shotgiant, which resulted in U.S. intelligence operatives hacking into Huawei source code to conduct surveillance. As the New York Times reported in 2014, “The agency pried its way into the servers in Huawei’s sealed headquarters in Shenzhen…It obtained information about the workings of the giant routers and complex digital switches that Huawei boasts connect a third of the world’s population, and monitored communications of the company’s top executives.”

According to reporting, as well as the documents Snowden made public, the NSA hacked into Huawei’s networking equipment “so that when the company sold equipment to other countries–including both allies and nations that avoid buying America products–the NSA could roam through their computer and telephone networks to conduct surveillance.”

To put that another way, the agencies that conclusively hacked into Huawei equipment to conduct cyber espionage are warning against using Huawei equipment because it may be used by the Chinese to conduct cyber espionage.

In response to the Senate testimony, Huawei said in a statement that the company “is aware of a range of U.S. government activities seemingly aimed at inhibiting Huawei’s business in the U.S. market. Huawei is trusted by governments and customers in 170 countries worldwide and poses no greater cybersecurity risk than any ICT vendor, sharing as we do common global supply chains and production capabilities.”

Both Verizon and AT&T recently backed out of deals to sell Huawei mobile devices in the U.S. Furthermore, there are bills in the House and Senate that would prohibit the U.S. government from using gear sold by Huawei and ZTE (the other major Chinese telecom equipment vendor).

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References:

https://www.wirelessweek.com/news/2018/02/huawei-conducts-5g-wireless-home-trial-canada

Huawei, Telus launch 5G fixed wireless trial in Canada

Intelligence chiefs blast Huawei in Senate testimony

https://www.cnbc.com/2018/02/13/chinas-hauwei-top-us-intelligence-chiefs-caution-americans-away.html

AT&T: Mobile 5G will use mm wave & small cells

Posted on January 14, 2018 by

AT&T says it will use small cells for its mobile “5G” service planned for 12 U.S. cities this year. The company’s first of these roll outs will use millimeter wave [1] spectrum, which offers higher capacity rates than low-band spectrum but does not propagate over large distances. That requires transmit/receive radios need to closer together than they are in LTE deployments.

Note 1. Millimeter wave (also millimeter band) is the band of spectrum between 30 gigahertz (Ghz) and 300 Ghz.

“Millimeter wave is more associated with small cell-like ranges and heights,” said AT&T’s Hank Kafka, VP of network architecture. “It can be on telephone poles or light poles or building rooftops or on towers, but generally if you’re putting it on towers it’s at a lower height than you would put a high-powered macrocell, because of the propagation characteristics.”

“5G will change the way we live, work and enjoy entertainment,” said Melissa Arnoldi, president, AT&T Technology and Operations. “We’re moving quickly to begin deploying mobile 5G this year and start unlocking the future of connectivity for consumers and businesses. With faster speeds and ultra-low latency, 5G will ultimately deliver and enhance experiences like virtual reality, future driverless cars, immersive 4K video and more.”

AT&T has announced 23 cities that are getting its 5G Evolution infrastructure, which the company describes as “the foundation for mobile 5G.” Those cities are Atlanta; Austin; Boston; Bridgeport, Connecticut; Buffalo, New York; Chicago; Fresno, CA; Greenville, South Carolina; Hartford, Connecticut; Houston; Indianapolis; Los Angeles; Louisville; Memphis; Nashville; New Orleans; Oklahoma City; Pittsburgh; San Antonio; San Diego; San Francisco; Tulsa, Oklahoma and Sacramento, California.

AT&T’s deployment of small cells to support mobile 5G will be largely independent of another 2017 AT&T infrastructure initiative – the build-out of the 700 MHz spectrum for FirstNet.

“Where appropriate we’re always going to try and get as much synergy as we can … but there’s a difference between dealing with small cell sites and dealing with macro sites,” Kafka said.

“You’ll find that a lot of radios that suppliers are putting out now are going to be upgradeable to support 5G,” Kafka said. “Some of the radios we’re deploying now do have that capability in the hardware.”

Kafka said that in some instances, tower crews might be able to add “5G” equipment near the base of the tower at the same time they add 700 MHz radios to the top. But the synergies between the two deployments are limited.

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In sharp contrast to AT&Ts endorsement of millimeter wave technology, Sprint’s CTO John Saw said last week that he is not sure that using millimeter waves to deliver 5G services is a practical economic use of the high-band spectrum and that Sprint will be focusing on using its existing bandwidth to initially deploy 5G.

“What is the cost to deliver a bit over millimeter waves? Where is the business case on that?” John Saw asked at the Citi conference in Las Vegas.

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Verizon CTO Hans Vestberg told a CES panel last week that Verizon “will be first” to deploy 5G. Verizon is moving ahead with deployment of pre-standard fixed-wireless 5G service, starting with a rollout in Sacramento, California in the second half of this year. But Vestberg noted fixed-wireless is just one part of what Verizon plans to do with 5G.

“From 5G you can do different slices. We are now focusing on one slice, which is basically residential broadband to deliver superior performance quicker to market…That’s one use case, we can talk about many others.”

References:

https://www.rcrwireless.com/20180111/carriers/att-mobile-5g-will-rely-on-small-cells-tag4

https://policyforum.att.com/att-innovations/preparing-5g-need-small-cell-technology/

http://about.att.com/story/att_to_launch_mobile_5g_in_2018.html

https://techblog.comsoc.org/category/5g/

http://www.lightreading.com/mobile/5g/sprint-says-no-to-mmwave-yes-to-mobile-5g/d/d-id/739592