Talk:5G

Useful for an update (20160530)?

(source: http://www.telecomasia.net/content/huawei-validates-key-5g-technologies) Huawei validates key 5G technologies... Dylan Bushell-Embling... May 30, 2016... telecomasia.net

Huawei has announced it has completed the first stage of key 5G technology tests as part of a series of 5G field trials organized by the IMT-2020 5G Promotion Group.

The vendor completed outdoor macro-cell tests in Chengdu, China consisting of a number of key 5G enabling technologies and an integrated 5G air interface.

As part of the trial, Huawei evaluated three foundational technologies - filtered orthogonal frequency division multiplexing (F-OFDM), sparse code multiple access (SCMA) and polar code - the air interface technology.

Results show that F-OFDM was able to improve system throughput by 10%, SCMA was able to increase uplink connections by 300% and downlink system throughput by up to 80%, and polar code provided coding gain of between 0.5dB and 2dB compared to the code used in LTE systems.

Huawei said results of the test demonstrate that the new 5G air interface technology can improve spectral efficiency and meet the ITU-R's diverse service requirements for the standard.

The IMT-2020 5G Promotion Group was launched by the China Academy of Information and Communication Technology to encourage joint efforts to promote 5G field trials and evaluations among the global mobile industry.

Earlier this year the group announced a three-phase 5G trial plan spanning from 2016 to 2018.

-- Jo3sampl (talk) 13:20, 30 May 2016 (UTC)

Current status?

"Is 5G Over-Hyped?

" . . . [speed] depends on what frequency bands are used — 6GHz, 28GHz, 27 GHZ. The higher the frequency the more fibre you need closer to the user in order to deliver those higher speeds. Currently less than 50% of mobile towers are connected to fibre, and the rollout of fibre can't keep up with the rapid deployment of mobile broadband. 5G means more mobile towers so it is unlikely that all of these towers will be linked to fibre in the near future. [etc.]"

http://www.circleid.com/posts/20160530_is_5g_over_hyped/

-- Jo3sampl (talk) 20:17, 31 May 2016 (UTC)

Current status is negotiation and planning. Results are a matter of what year. A few users may expect all these wonders to become an everyday experience the same year that the new standard makes its splashy first appearance, or the following year. Most of those will be disappointed. Deployment will take years. Years after first 4G, it isn't everywhere yet, and won't be when 5G starts. Jim.henderson (talk) 13:21, 3 June 2016 (UTC)

5g demo from Sprint

http://www.techtimes.com/articles/163045/20160604/sprint-shows-off-5g-with-blazing-fast-speeds-at-copa-américa-centenario.htm

"Sprint Shows Off 5G With Blazing Fast Speeds At Copa América Centenary”

Excerpts:

“The demonstration employed beam stitching, which works by tracking the device in use, selecting the best antenna and sending the signal to a set location.”

"An FCC spectrum auction last month also showed strong implication, further paving the way toward fast and reliable 5G networks. AT&T, Verizon and T-Mobile will likely spend billions on 600 MHz spectrum, but Sprint is not interested. Sprint already has plenty of 2.5 GHz spectrum – more than any of its rivals – and when it comes to 5G, it's considered low-frequency spectrum. This means that it should be better at penetrating walls and buildings and traveling farther, thus translating to wider coverage.”

Also — up to 2Gbps during demo; used 73 GHz millimeter wavelength spectrum for demo.

-- Jo3sampl (talk) 15:17, 5 June 2016 (UTC)

As of June 2016

"5G remains the driver for new product development . . .

"However there is no standard for 5G deployments and no one knows what the final specs will look like. Consensus suggests that 5G will utilize Massive MIMO (multiple input, multiple output) antennas — perhaps dozens (or hundreds) per basestation — each with their own spectrum and modulation scheme. Thus, every RF supplier — no matter how narrow their focus — will claim a slot among the MIMO attachments. "If you can’t find channel bandwidth on the upper spectrum of the millimeter wave bands, consider carrier aggregation at lower frequencies. WiFi and LTE, for example, will likely “co-exist” on the same tower.

"Orthogonal frequency division multiplexing (OFDM) is one way of putting additional data channels on a given frequency range . . . . OFDM is a modulation technique, which can utilize multiple carriers, within an allocated bandwidth and could enable a 10 Gbits/second data. Each carrier utilize one of the several available digital modulation techniques such as binary phase shift keying (BPSK) or quadrature phase shift keying (QPSK), or quadrature amplitude modulation (QAM) with 256 or 1024 constellation points. (802.11ac, for example, uses a 256-point QAM for every data bit transmitted.)"

http://www.eetimes.com/author.asp?section_id=36&doc_id=1329841 accessed 20160707

-- Jo3sampl (talk) 13:30, 7 June 2016 (UTC)

And:

Power amplifier research with implications for 5G phones

"Purdue research could lead to faster cell phone technology

"[A team of researchers at Purdue created for the first time] power amplifiers (components commonly used in cell phones) using silicon technology that are efficient enough to be suitable for 5G cell phones. . . ."

(http://www.purdueexponent.org/campus/article_91c49b5e-e38f-5be0-8ca1-c16d2ba4f2f2.html)

-- Jo3sampl (talk) 17:35, 13 June 2016 (UTC)

Wavelength controversy?

http://spectrum.ieee.org/tech-talk/telecom/wireless/real-5g-will-broadcast-above-6-gigahertz-analyst-says

retrieved 20160920

'Stéphane Téral, an analyst at IHS Markit, recently weighed in by criticizing the use of “5G” to describe sub-6 gigahertz developments in a research note.'

'Many [carriers] have set their sights on much shorter millimeter waves that fall between 30 and 300 GHz. There are plenty of frequencies available in the millimeter-wave range, because they’ve been used only for specialized applications such as remote sensing and military radar. But waves at these frequencies can’t travel as far or make it through as many obstacles . . .'

'[5G analyst Anshel] Sag thinks it’s a mistake to rule out anything other than millimeter waves as true 5G. He says 5G New Radio, a wireless standard defined by the global wireless standards group 3GPP, should count as 5G no matter which frequencies it handles.'

-- Jo3sampl (talk) 20:25, 20 September 2016 (UTC)

Standards for 5G still not coming until 2018

AT&T will launch its first 5G wireless service in Indianapolis and Austin later this year, offering theoretical top speeds of 400Mbps or higher, the company said.

http://www.computerworld.com/article/3164831/mobile-wireless/att-to-launch-5g-wireless-this-year-in-indy-and-austin.html 2/2/2017

-- Jo3sampl (talk) 22:11, 10 February 2017 (UTC)

5G definition and Chinese company ZTE

'Asked about plans in South Korea to launch some form of 5G in 2018, Alex Wang said 5G can be a marketing name, with different operators defining 5G in different ways: “We follow closely the 3GPP standard and believe it’s a more neutral and technically sound definition.”

' “We consider Chinese and Japanese operators as following the more strict 3GPP-based definition, with 5G launches around 2020. Any launch earlier than that is up to the indivdual operator to define, but we don’t think that’s standard compliant 5G.”

'With phase two of China’s national 5G implementation already underway, ZTE is working closely with China Mobile on different aspects of the operator’s 5G trials, including radio and core networks, and the interworking of network features.'

(https://www.mobileworldlive.com/featured-content/home-banner/zte-steps-up-role-in-5g-global-standards-process/)

-- Jo3sampl (talk) 17:56, 30 May 2017 (UTC)

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Complete update and rewrite

The article was mostly unchanged since 2016 in a very fast moving field. Many references were to 2011 and 2013. Rewrote entire article, removing many out of date datapoints, obvious pr, and errors. Actual deployments replaced trials. Shortened some sections with extraneous material. (I'm a tech reporter covering this field and have written over 50 articles. That doesn't mean I got everything right. Improvements welcome.) I made a major change/update to paragraph 2, which said 5G was millimeter wave only. Since then, Massive MIMO and low band 5G have been accepted by most as part of 5G. There's no formal definition so I included all 3 saying "some consider." At the MWC this week, it appeared 3/4ths of the announced 5G plans were low band, which had been left out. Is that the right solution? The article would be improved with more technical information and more links to recently published books/articles. Dave Burstein daveb@dslprime.com — Preceding unsigned comment added by Daveburstein (talk • contribs) 09:50, 28 February 2018 (UTC)

I agree. It needs a comparison table of: 0G, 1G, 2G, 3G, 4G and 5G.