Which network has the fastest speed

5G speed is data communication in real time

All over the world, people are mobile on the Internet. The number of networked devices is increasing rapidly. Machines will soon also be communicating with one another in the Internet of Things. In order for the digital society to develop further and for the Internet of Things to work, a high-performance radio network is necessary for the fast transmission of large amounts of data.

How fast is 5G?

5G will significantly improve mobile internet. LTE is currently the fastest available cellular technology that enables a maximum data rate of up to 300 megabits per second (Mbit / s). Even after the introduction of 5G, LTE will still be available to private users.

The speed is a measure of the performance of a radio network and is also known as bandwidth, data transmission rate, data rate or connection speed. This refers to the amount of digital data that is exchanged between two end devices via a channel over a period of time.

The network speed is generally measured in bits per second (bit / s). Bit stands for binary digit. If the amount of data increases, for example with 5G speed, kilobits (kb / s), megabits (Mbit / s) and in the future also gigabits (Gbit / s) or terabits (Tbit / s) are specified.

Telekom tested a 5G network in live operation at IFA 2018. A speed of three gigabits per second was measured. Under ideal conditions, the 5G speed should be up to ten Gbit / s in the future. That is a twenty-fold increase.

How fast ten Gbit / s really is can be shown with a simple example: To download the content of a DVD (4.7 GB), a user needs about 13 minutes via a DSL connection with a bandwidth of 50 Mbit / s. A 5G-capable smartphone or laptop could ideally load the content of an entire DVD via a mobile 5G data connection within just four seconds.

However, 5G technology is about more than just speed. Further decisive factors are availability and reliability.

Low latency as a requirement for real-time applications

The term latency is used to describe the specific time span in which an individual user activity via a mobile device triggers a subsequent reaction, the ping, on another device.

Self-driving cars are an example of the importance of low latencies. In the area of ​​networked driving, data transmission and reactions must take place in real time. Because decisions have to be made in a split second. Only then will the car come to a stop or swerve in time for an obstacle.

Let's remember our driving school. A person's reaction time from recognizing danger to pressing the brake pedal is one second. A car traveling at 100 km / h covers a distance of around 28 meters in this time.

An autonomous vehicle, which can evaluate data with a latency of one millisecond, reacts 1,000 times faster than a human and can thus trigger a braking maneuver within less than a centimeter.

The reaction time between the human eye and the brain is around ten milliseconds. With a latency of one millisecond, real communication between networked machines and devices is feasible for the first time, for example in Industry 4.0 or medicine.

Virtual reality is also possible with LTE, but with the potential of 5G and edge computing it becomes much better and more impressive.

Intelligent machines communicate in real time

The average latency in the LTE network is around 50 milliseconds. 5G will significantly improve latency times and data rates. In its first practical tests with 5G in Germany, Deutsche Telekom achieved a time of three milliseconds. With experiments in a laboratory environment, researchers even achieved a record value of one millisecond. The aim is to permanently guarantee the super-fast response times of 5G.

Reliable latencies and high connection speeds play a decisive role in the networking of intelligent devices in Industry 4.0. Guaranteed response times are important here, not one-off top performances. Faster data transmission with 5G, in conjunction with artificial intelligence and edge computing, will enable reliable communication between machines and automated and autonomous production.

Connectivity based on 5G is becoming an important component for the digitization of industry. With the provision of virtual network levels, mobile robots can also be used flexibly and efficiently in economic production, depending on special requirements.

Real-time data communication based on 5G speed will play a key role in many future applications.