GSM is a global mobile communication standard that is widely used in 2G networks to provide voice communication and text messaging functions for mobile phone users. As a key component supporting the GSM network, how does the GSM module work? Let’s find out together.
The working principle of the GSM module involves the basic principles of mobile communications . Mobile communications are achieved through wireless signals between base stations and mobile devices. The main function of the GSM module is to connect mobile devices to base stations through wireless signals to implement communication services. Its workflow can be roughly divided into four parts: signal reception, signal processing, data transmission and signal sending .
1. In the signal receiving stage, the GSM module receives the wireless signal sent by the base station, converts the signal into an electrical signal through the antenna, and sends it to the receiver for processing. The receiver amplifies and filters the wireless signal, and then converts the signal into a digital signal for subsequent processing.
2. Next is the signal processing stage. The GSM module demodulates and descrambles the received digital signal to restore the original digital data, and then decodes and decodes the digital data into identifiable information, such as voice or text message.
3. In the data transmission stage, the GSM module identifies the user’s identity and communication permissions through the SIM card, and then transmits the processed data to the mobile phone terminal to facilitate user communication and information interaction.
4. It is the signal transmission stage. The GSM module converts the information sent by the user into a digital signal through the data transmission protocol. After encoding and modulation, it is sent to the base station through the antenna to realize communication between users or between users and fixed phones.
In this workflow, the GSM module plays a vital role and is an indispensable component in mobile communications. Through the working principle of the GSM module, we can have an in-depth understanding of the technical mysteries in the field of mobile communications, which is of great significance to our understanding and application of mobile communication technology. It is recommended to understand the principles of the gsm SMS module.