Another important factor in determining the capacity of a mobile system is the channel. A channel is a frequency or set of frequencies which can be allocated for the transmission and possibly the receipt, of information. Communication channels 0 form can be one of the following types :
Table 7.2 Types of Communication Channels
Table 7.2 Types of Communication Channels
Type Description Example
Simplex One way only FM radio, television
Half Duplex Two way, only one way at a time Police radio
Full Duplex Two way, both at the same time Mobile system
A simplex channel, such as a FM radio music station, uses a single frequency single direction only. A duplex channel, such as that used during a mobile call uses two frequencies: one to the MS and one from the MS (Uplink, Downlink).
Full Duplex Two way, both at the same time Mobile system
A simplex channel, such as a FM radio music station, uses a single frequency single direction only. A duplex channel, such as that used during a mobile call uses two frequencies: one to the MS and one from the MS (Uplink, Downlink).
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