Growth in the rapidM2M module family: Worldwide long-term availability and extreme energy efficiency

The impending 2G/3G sunset hangs over the mobile communications world like a sword of Damocles. Increasing requirements in terms of the number of subscribers, data rates and energy consumption are leading to further developments in the mobile communications sector. New technologies such as CAT-M1/NB1 and 5G are replacing 2G/3G and require the frequency bands that will be freed up by the sunset.

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In the white paper on frequency bands, mobile communications and channels, hardware engineer Stefan Lechner explains the basics in an easy-to-understand way. He shows the development and dives into the technical depths for those who want to know more.

How exactly does it work with these frequency bands and how did it all evolve?

The technological development leads to growth in the rapidM2M module family. With the rapidM2M M22x 2G/3G/4G there is future-proof, worldwide availability. The rapidM2M M22x M1/NB1 EU is the right choice for application that need to get along with little energy for a long time.

Worldwide long-term availability

The rapidM2M M22x 2G/3G/4G World module can be used worldwide. Depending on the country, it books itself into the strongest network. If there is no 2G or 3G network, 4G is used. If, for example, 2G is switched off, the module simply books itself into the 3G or 4G network at the next connection. By default, the modem in the rapidM2M M22x 2G/3G/4G World automatically decides which uplink technology to use.

301269 rapidM2M M22x 2G/3G/4G World

For future-proof applications, the module is excellent because it can also be used with 5G and 5G New Radio (NR).

Energy efficient with new technologies

New technologies bring new technical possibilities. While with GSM (2G) the peak current during transmission is 2A, this has been reduced to 0.4A with modern LTE (4G) technology. This opens up completely new possibilities for battery-powered devices.

The peak of 2A required for GSM transmission can only be achieved with special lithium D cells. Accroding to the size of the D-cells, but also to the price, there are limits for the application and the business model.

Comparison of power consumption for 2G/3G/4G vs M1/NB
Required power for rapidM2M M22x 2G/3G/4G compared to rapidM2M M22x M1/NB

The rapidM2M M22x M1/NB1 EU transmits data exclusively via CAT M1/NB1. This has the great advantage that it can be supplied with a wide range of available batteries due to the peak current of only 0.4A required. Thus, it can be operated with the significantly cheaper alkaline cells (Mignon AA).

The wide selection of usable batteries gives hardware designers new possibilities.

The new additions

Frequency Bands, Mobile Radio, Channels - Basics & Deep Dive

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NTN…Non Terrestrial Network

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