Discontinuous Transmission (DTX) is a mechanism which allows the radio transmitter to be switched off most of the time during SPEECH pauses.

DTX may be applied INDEPENDENTLY to each direction, so that the control of DTX must take into account two components:

• The uplink mode
• The DOWNLINK mode

DTX can be enabled or disabled for the uplink and/or downlink mode on a per-cell basis.

Reasons for DTX When DTX is applied, actual transmission on the radio path is REDUCED. This will cause a decrease of the interference level in co-channel cells (using the same frequency). Another advantage will appear when using DTX in the uplink mode: it saves battery power for the mobile station. However, a disadvantage of the DTX mode is that it slightly deteriorates the quality of transmission. Note that transmitting in DTX mode does not save timeslots on the air-interface.

Discontinuous Transmission (DTX) is a mechanism which allows the radio transmitter to be switched off most of the time during speech pauses.

DTX may be applied independently to each direction, so that the control of DTX must take into account two components:

DTX can be enabled or disabled for the uplink and/or downlink mode on a per-cell basis.

Reasons for DTX When DTX is applied, actual transmission on the radio path is reduced. This will cause a decrease of the interference level in co-channel cells (using the same frequency). Another advantage will appear when using DTX in the uplink mode: it saves battery power for the mobile station. However, a disadvantage of the DTX mode is that it slightly deteriorates the quality of transmission. Note that transmitting in DTX mode does not save timeslots on the air-interface.