GSM Full Form

Global System for Mobile Communication

GSM Full Form

Global System for Mobile Communication

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What is the full form of GSM?

The full form of GSM is 'Global System for Mobile Communication.' Developed by the European Telecommunications Standards Institute (ETSI), GSM is a standard developed to describe protocols for second-generation (2G) digital cellular networks. It was a replacement for first-generation (1G) cellular networks and is a key technology in mobile communication.

What Are the Key Features of GSM Technology?

  • GSM uses Narrowband Time Division Multiple Access (TDMA) technology for signal transmission.
  • It is a circuit-switching system that divides each 200 kHz channel into eight 25 kHz time slots.
  • GSM primarily operates on 900 MHz and 1800 MHz mobile communication bands globally.

How Is the GSM Network Structured?

The GSM network comprises four main components:

  • Mobile phone.
  • Network Switching Subsystem (NSS).
  • Base Station Subsystem (BSS).
  • Operation and Support Subsystem (OSS).

What Are the Pros and Cons of GSM?

  • Advantages:
    • Enhanced security, making it difficult to duplicate services.
    • Compatibility with a wide range of applications.
    • Simultaneous use of voice and data services.
    • Improved voice clarity.
  • Disadvantages:
    • Potential interference due to shared bandwidth.
    • Limited compatibility with newer cellular networks like 3G compared to CDMA technology.
    • Possible electronic interference due to pulse transmission technology.


GSM, or Global System for Mobile Communication, revolutionised mobile telecommunications. Its widespread adoption and technological advancements have significantly contributed to the evolution of mobile communication, despite some limitations in comparison to newer technologies.

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