What is the 5G technology?

What is 5G?

5G technology is a breakthrough.

The next-generation of telecom networks (fifth generation or 5G) has started hitting the market end of 2018 and will continue to expand worldwide.

Beyond speed improvement, the technology is expected to unleash a massive 5G IoT (Internet of Things) ecosystem where networks can serve communication needs for billions of connected devices, with the right trade-offs between speed, latency, and cost. 

5G technology is driven by 8 specification requirements:

ü  Up to 10Gbps data rate - > 10 to 100x speed improvement over 4G and 4.5G networks

ü  1-millisecond latency

ü  1000x bandwidth per unit area

ü  Up to 100x number of connected devices per unit area (compared with 4G LTE)

ü  99.999% availability

ü  100% coverage

ü  90% reduction in network energy usage

ü  Up to 10-year battery life for low power IoT device

How fast is 5G?

5G speed tops out at 10 gigabits per second (Gbps).

5G is 10 to x100 faster than what you can get with 4G.

What makes 5G faster? Good question!

According to communication principles, the shorter the frequency, the larger the bandwidth.

The use of shorter frequencies (millimeter waves between 30GHz and 300GHz) for 5G networks is why 5G can be faster. This high-band 5G spectrum provides the expected boost not only in speed but also in capacity, low latency, and quality.

However,5G download speed may differ widely by area.

According to the February 2020 issue of Fortune Magazine, average 5G speed measures done in Q3/Q4 2019 range from:

·         220 megabytes per second (Mbps) in Las Vegas, 

·         350 in New York,

·         380 in Los Angeles,

·         450 in Dallas,

·         to 550 Chicago,

·         and over 950 in Minneapolis and Providence approximatively.

That's 10 to 50 times more than 4G LTE.

What is 5G low latency? 

5G technology offers an extremely low latency rate,the delay between the sending and receiving of information. From 200 milliseconds for 4G, we go down to 1 millisecond(1ms) with 5G.

 
Just think about it.
 
A millisecond is 1/1000 of a second. 
 

The average reaction time for humans to a visual stimulus is 250 ms or 1/4 of a second. People are capped at around 190-200 ms with proper training.

Imagine now that your car could react 250 times faster than you.

Imagine it could also respond to hundreds of incoming information and can also communicate its reactions back to other vehicles and road signals all within milliseconds.

At 60 mph (100km/h), the reaction distance is about 33 yards (30 meters) before you pull on the brakes. With a 1ms reaction time, the car would only have rolled a bit more than one inch (less than 3 centimeters). 

Use cases associated with low latency are: 

·         V2X (Vehicle-to-Everything) communication: V2V: (Vehicle-to-Vehicle), V2I (Vehicle-to-Infrastructure), autonomous, connected cars

·         Immersive Virtual Reality Gaming (5G will bring VR to the masses)

·         Remote surgical operations (aka telesurgery)

·         Simultaneous translating.

In other words, 5G and IoT create the perfect match.

So, let's see what makes 5G so different from 4G.

5G vs. 4G - What is the difference?

The 5^th generation of wireless networks addresses the evolution beyond mobile internet to massive IoT (Internet of Things) from 2019/2020. 

The main evolution compared with today’s 4G and 4.5G (LTE advanced) is that, beyond data speed improvements, new IoT and critical communication use cases will require a new level of improved performance. 

·         For example, low latency provides real-time interactivity for services using the cloud: this is key to the success of self-driving cars, for example.   

·         5G vs. 4G also means at least x100 devices connected. 5G must be able to support 1 million devices for 0.386 square miles or 1 km².

·         Also, low power consumption is what will allow connected objects to operate for months or years without the need for human assistance.

Unlike current IoT services that make performance trade-offs to get the best from current wireless technologies (3G, 4G, WiFi, Bluetooth, Zigbee, etc.), 5G networks will be designed to bring the level of performance needed for massive IoT. 

It will enable a perceived entirely ubiquitous connected world.

In short, that’s what makes it transformational. 

5G and the previous mobile generations at a glance

In the last four decades, mobile phones, more than any other technology, have quietly changed our lives forever.

Do you remember how much you loved your 2G Nokia 3310?

·         1G, the first generation of telecom networks (1979), lets us talk to each other and be mobile

·         2G digital networks (1991) let us send messages and travel (with roaming services)

·         2.5G and 2.75G brought some improvement to data services (GPRS and EDGE)

·         3G (1998) brought a better mobile internet experience (with limited success)

·         3.5G brought a truly mobile internet experience, unleashing the mobile apps eco-system

·         4G (2008) networks brought all-IP services (Voice and Data), a fast broadband internet experience, with unified networks architectures and protocols

·         4G LTE ( for Long Term Evolution), starting in 2009, doubled data speeds

5G networks expand broadband wireless services beyond mobile internet to IoT and critical communications segments.

Virtual networks (5G slicing) tailored to each use case.

5G will support all communication needs from low power Local Area Network (LAN) – like home networks, such as Wide Area Networks (WAN), with the right latency/speed settings.

This need is addressed today by aggregating a broad variety of communication networks (WiFi, Z-Wave, LoRa, 3G, 4G, etc.)

And 5G is smarter.  

5G is designed to allow simple virtual network configurations to better align network costs with application needs. 

This new approach will allow 5G Mobile Network operators to catch a larger piece of the IoT market pie by delivering cost-effective solutions for low-band, low-power applications.  

What are the real 5G use cases?

Each new generation wireless network came with a new set of new usages. 

The next coming 5G will make no exception and will be focused on IoT and critical communications applications. 

In terms of the schedule, we can mention the following uses cases over time:

·         Fixed wireless access (from 2018-2019 onwards)

·         Enhanced mobile broadband with 4G fall-back (from 2019-2020-2021)

·         Massive M2M / IoT (from 2021-2022)

·         Ultra low-latency IoT critical communications (from 2024-2025)

Some critical applications like self-driving cars require very aggressive latency (fast response time) while they do not require fast data rates.  

Conversely, enterprise cloud base services with massive data analysis will require speed improvements more than latency improvements.

When is 5G coming? 

Where is 5G technology in terms of roll-out, standardization, and how long will this take?

·         As of November 2020, 146 mobile operators have launched commercial 5G services according to the Ericsson mobility report. The study forecasts 220m subscriptions by end of 2020.

·         Countries across all continents, according to the Global mobile Suppliers Association (GSA).

·         ITU-R launched “IMT for 2020 and beyond” in 2012, setting the stage for 5G.

·         Japan and Korea started to work on 5G requirements in 2013.

·         NTT Docomo did the first 5G experimental trials in 2014.

·         Samsung, Huawei, and Ericsson started prototype development in 2013.

·         South Korean SK Telecom demoed 5G in 2018 at the Pyeongchang Winter Olympics.

·         Ericsson and TeliaSonera made commercial services available in Stockholm and Tallinn in 2018.

·         North America 5G is available in some locations in 2019. It won't take off in most areas until 2020.

·         In the US, more precisely, ATT is announcing nationwide coverage in the first half of 2020. Verizon 5G was the first carrier to roll out 5G.

·         Deutsche Telekom started 5G in Berlin, Darmstadt, Munich, Bonn, and Cologne in Sept 2019.

·         Telcos in France are to announce 5G offers by the very end of 2020 for real availability in 2021.

·         In the UK, many cities have seen 5G in 2019 and more in 2020. EE, Vodafone, and O2 are actively deploying 5G since mid-2019.

·         India Telcos are getting prepared for the 5G roll-out in 2021.

·         Japan's target is to launch 5G for the 2020 Tokyo summer Olympics.

·         China Unicom has set up 5G in a few locations in 2019. GSMA expects 460 million 5G connections in China by 2025.

Find more resources: 5G availability around the world as of 3 December 2020 or check the interactive weekly-updated Ookla 5G map.

How fast will 5G take-up be?