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TS 43.050 (SA4)
Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system

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V14.0.0 (PDF)    2017/03    42 p.
V13.0.0    2015/12    42 p.
V12.0.0    2014/09    42 p.
V11.0.0    2012/09    42 p.
V10.0.0    2011/04    42 p.
V9.0.0    2009/12    42 p.
V8.0.0    2008/12    42 p.
V7.1.0    2008/03    42 p.
V6.0.0    2005/01    42 p.
V5.0.0    2001/04    42 p.
V4.0.0    2001/04    43 p.

Rapporteur:  Mr. Usai, Paolino
Antecedent:  TS 03.50    

This TS describes the transmission planning aspects pertaining to the speech service in the GSM PLMN system. Due to technical and economic factors, there cannot be full compliance with the general characteristics of international telephone connections and circuits recommended by the ITU-T.

This TS gives guidance as to the precautions, measures and minimum requirements needed for successful interworking of the PLMN with the national and international PSTN. This TS identifies a number of routeing and network configurations. The objective is to reach a quality as close as possible to ITU-T standards in order to safeguard the performance seen by PSTN customers.

The requirements stated for acoustics in dual mode GSM/3GPP handsets shall be interpreted as requirement on acoustics in the GSM mode.


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1   Scope   PDF-p. 7
2   Network configurations
3   Transmission performance
3.1   Overall Loss/Loudness ratings   PDF-p. 13
3.2   Stability Loss   PDF-p. 14
3.3   Delay
3.4   Echo
3.5   Clipping      Up
3.6   Idle channel noise (handset and headset MS)
3.7   Noise contrast
3.8   Sensitivity/frequency characteristics
3.9   Distortion (handset and headset MS)
3.10   Sidetone (handset and headset MS)   PDF-p. 22
3.11   Not used
3.12   Requirements for information tones
3.13   Crosstalk   PDF-p. 23
3.14   MS Ambient Noise Rejection
A   Considerations on the Acoustic Interface of the Mobile Station   PDF-p. 32
B  (Normative)   Test considerations   PDF-p. 33
C  (Normative)   Transmission requirements testing   PDF-p. 34
D  (Normative)   MS delay requirement definition   PDF-p. 37      Up
E   Adaptive gain control   PDF-p. 39
F   Change History   PDF-p. 40

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