Tdma
- N users share same radio channel
- But uses only particular slot
- Only gsm technology
- Data streams divided in frames which contains N slots.
- Duplex mode
- Bw is N times the Bw required to transmit for single user.
- Less expansive and smaller
- N down link it is simple - just multiplexing.
- In unlink - hard as user has to be aligned in time.
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