Things About 4G You Need To Know

In 2021, mobile network communication technology has been popularized in all walks of life, but do you really know what 4G is? This article will help you understand the things about mobile communication.

What 4G means?

The full name of 4G communication is the fourth generation of network communication technology, and when it comes to network communication, we should start from the most basic electromagnetic wave. So-called wireless communication or mobile communication, in fact, is electromagnetic communication.

We see people gesture and make faces because of the light (visible light waves) captured by our eyes, which is also a form of ‘wireless communication’. We talk through a walkie-talkie, through radio waves, which is also wireless communication. Light waves, radio waves, are essentially electromagnetic waves.

Electromagnetic waves are things that cannot be seen or touched, but they are always around us as a form of energy transmission. Light waves, like the gamma rays that we operate on, or the ultraviolet rays that we use to kill bacteria, and the sunlight that warms us, these are light waves, and they have energy.

According to the propagation characteristics of electromagnetic wave, we find that it can be carried for information, that is, used for communication. Use electromagnetic wave, be about to occupy frequency resource. However, this frequency resource is not inexhaustible, inexhaustible. The frequency resources that can be used for civil mobile communication are only a part of all the radio frequency resources. We usually say that spectrum resources are limited.

What is Spectrum/Band?

Spectrum is a family of electromagnetic waves arranged continuously according to their wavelength (or frequency). For example, this continuous family of electromagnetic waves with frequencies between 800 MHz and 810 MHz is a spectrum. The frequencies are continuous, not discrete. Similar frequencies tend to interfere with each other, and each use occupies a band, so we don’t use them one by one, we use them one by one.

To prevent spectrum misuse and interference, spectrum resources are centrally managed and allocated. Each country has specific regulatory authorities. These organizations control how frequencies are used and assigned. Using unauthorized frequencies without permission is illegal and may lead to penalties.

For mobile phones or industrial tablets like the Proculus, the situation is more complicated. In this case, we will use a rank ‘band’ and we can see that the phone parameters will say: this phone supports band 38, 39, 40, etc. Each band represents a range of frequencies. The correspondence is as follows:

What Proculus Does

Most consumers cannot fully understand frequency band details, and switching carriers may change network requirements. To meet market needs, manufacturers often launch all-network phones. These devices support multiple formats for broader compatibility. However, more supported formats mean higher development, production, and patent costs. This makes all-network phones more expensive.

To reduce costs, Proculus customizes 4G modules with specific bands for each country and industry. This ensures reliable mobile network communication for different users. The 4G modules are tailored to match customer needs while keeping expenses low. Additionally, Proculus includes GPS functionality to support outdoor device applications and broader use cases. For more information, please refer to: www.proculustech.com