Question: Explain the difference between a logical channel and a physical channel in the GSM specifications. For GSM, show the frequency division of the available bandwidth

  1. Explain the difference between a logical channel and a physical channel in the GSM specifications.

  1. For GSM, show the frequency division of the available bandwidth and the time division multiplex frame structure. Also determine:

The overall transmission rate

The transmission rate per time slot

The actual user data rate per time slot

  1. Provide an explanation of the methods of open loop and closed loop power control on the reverse channel between a base station and the mobile station and give the reason for its use.

  1. Describe the changes in GSM leading to GPRSS and EDGE and state their major features.

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