1.

Explain Channel Encoding Scheme In Gprs?

Answer»
  • Channel Encoding Scheme is based on a convolution code at various code rates and GMSK modulation
  • The table below SUMMARIZES the options:
  • Coding Scheme Speed
    • CS-1 8.0
    • CS-2 12.0
    • CS-3 14.4
    • CS-4 20.0
  • The LEAST robust and FASTED coding scheme is CS-4 and is AVAILABLE near a Base Transceiver Station
  • The most robust coding scheme is CS-1 and is used in case of mobile station is further away from a BTS
  • A speed of 20.0 Kbit/s/time slots can be achieved with CS-4 and has 25% normal cell coverage
  • A speed of 8.0 Kbit/s/time slots can be achieved with CS-1 and has 98% of normal coverage


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