• The slot is then the time that is allocated to the particular user, and
  • the GSM burst is the transmission that is made in this time.
  • Each GSM slot, and hence each GSM burst lasts for 0.577 mS (15/26 mS).
  • Eight of these burst periods are grouped into what is known as a TDMA frame.
    • Building unit of physical channel
    • Types of bursts

    –Normal Burst: for transmitting messages in traffic and control channels

    –Frequency Correction Burst: sent by base station for frequency correction at mobile station

    –Synchronization Burst: sent by base station for synchronization

    –Access Burst: for call setup

    –Dummy Burst: to fill an empty timeslot in the absence of data

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