Discontinuous Transmission - Ericsson CME 20 R6.1 Reference Manual

11

Discontinuous Transmission

"Discontinuous Transmission" is a mechanism which allows the radio
transmitter to be switched off during speech or data (non-transparent)
pauses.
The following benefits are achieved:
•
•
•
The RBS supports downlink DTX (Discontinuous Transmission) as well
as uplink DTX.
11.1 References
/GSM:04.06/
/GSM:04.21/
/GSM:05.02/
/GSM:05.08/
/GSM:06.12/
/GSM:06.22/
/GSM:06.31/
/GSM:06.32/
/GSM:06.41/
/GSM:06.42/
/GSM:06.81/
/GSM:08.20/
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
11.2 Functions
11.2.1 DTX Downlink
The DTX function is described in:
/GSM:06.12/
/GSM:06.22/
/GSM:06.31/
/GSM:06.32/
/GSM:06.41/
EN/LZT 123 2697 R5A
1998-08-13
Power is saved in the MS uplink
The overall interference level on the air is reduced
Reduced RBS power consumption downlink
© Ericsson Radio Systems AB
— All Rights Reserved —
Discontinuous Transmission
GSM 04.06 (phase 2) version 4.1.0
GSM 04.21 (phase 2) version 4.2.1
GSM 05.02 (phase 2) version 4.3.0
GSM 05.08 (phase 2) version 4.6.0
GSM 06.12 (phase 2) version 4.0.1
GSM 06.22 (phase 2) version 4.0.0
GSM 06.31 (phase 2) version 4.0.0
GSM 06.32 (phase 2) version 4.0.1
GSM 06.41 (phase 2) version 4.0.0
GSM 06.42 (phase 2) version 4.0.0
GSM 06.81 (phase 2) (t.b.d)
GSM 08.20 (phase 2) version 4.1.0
Comfort Noise Aspects
Comfort Noise Aspects (half rate speech)
Overall DTX Operation (full rate speech)
Voice Activity Detection (full rate speech)
Overall DTX Operation (half rate speech)
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