Friday, May 8, 2009

GSM/GPRS/UMTS Mobile Wireless Network Evolution


n the past decades, the mobile wireless network has migrated from the first generation (1G) to the third generation (3G), and 4G is in the time table. As one of the technology branches in the mobile wireless communication, the GSM has been upgraded to GPRS, and then UMTS. The road map of the GSM/UMTS network evolution is charged by the Third Generation Partnership Project (3GPP).

The GSM/GPRS/UMTS network evolution contains not only technical evolution but also expansion to network architecture and services.

  • Technical evolution: how network elements are developed and with which technology.
  • Network evolution: in result of network element evolutions the general architecture and functionality of the network is changing.
  • Service evolution: demand generated by the end-users that can be supported by the technical features of the network.
GSM GPRS UMTS
Network Elements
  • Mobile station (MS)
  • Base transceiver station (BTS) Base station controller (BSC) Base station subsystem (BSS)
  • Mobile switching center (MSC)
  • Authentication center (AuC) Home location register (HLR) Visitor location register (VLR)
    		•
  • Terminal Equipment (TE)Base transceiver site (BTS)
  • Base Station Controller (BSC) GPRS Support Nodes (GSNs)
  • Serving GPRS support node (SGSN)
  • Gateway GPRS support node (GGSN)
    		•  Radio Network Controller (RNC)Node BUMTS User EquipmentPlus GPRS components
    Network Functions Circuit Switched Voice/DataNarrow band access
  • Circuit Switched Voice
  • Packet Switched data
  • Narrow band access
    		•  Packet switch for voice and dataIP multimedia subsystem (IMS)Broadband access using UTRAN
    Services Voice VoiceShort messagesLow speed data VoiceMessagesHigh speed dataMultimedia

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    1 comment:

    1. AnonymousFebruary 21, 2014 at 4:34 AM

      GSM stands for Global System for Mobile Communication and is an open, digital cellular technology used for transmitting mobile voice and data services. The GSM standard is the most widely accepted standard and is implemented globally.The GSM provides basic to advanced voice and data services including Roaming service.Using your own phone abroad, understanding your phone's technology can help you determine whether to use it abroad. If you have a GSM phone, you can convert it to a local phone abroad by buying a local SIM card for it . This is especially useful
      for making cheap, local calls.To use local sim card you may need to unlock
      from network lock .It is not a big issue to get it unlocked, you may be able to do it by finding the relevant software in the internet or by an online provider like Mobile-Unlocker.com

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