(FDD)
* Echo cancellation

Hybrid application examples

Note that hybrids of these techniques are frequently used. Some examples:
* The GSM cellular system combines the use of frequency-division duplex (FDD) to prevent interference between outward and return signals, with FDMA and TDMA to allow multiple handsets to work in a single cell.
* GSM with the GPRS packet-switched service combines

1.Previous
3.Next