ETSI EN 300 903 V7.1.1 (2000-11)

Digital cellular telecommunications system (Phase 2+) (GSM); Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (GSM 03.50 version 7.1.1 Release 1998)

REN/SMG-110350Q7R1

Digitalni celični telekomunikacijski sistem (faza 2+) – Vidiki načrtovanja oddajanja govorne storitve v javnem kopenskem mobilnem omrežju (PLMN) sistema GSM (GSM 03.50, različica 7.1.1, izdaja 1998)

General Information

• Status: Published
• Publication Date: 27-Nov-2000
• Technical Committee: SMG 11 - Speech Aspects
• Current Stage: 12 - Completion
• Due Date: 24-Nov-2000
• Completion Date: 28-Nov-2000
• Ref Project: SIST EN 300 903 V7.1.1:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (GSM 03.50 version 7.1.1 Release 1998)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 300 903 V7.1.1:2003
01-december-2003
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JRYRUQHVWRULWYHYMDYQHPNRSHQVNHPPRELOQHPRPUHåMX3/01VLVWHPD*60
*60UD]OLþLFDL]GDMD
Digital cellular telecommunications system (Phase 2+) (GSM); Transmission planning
aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system
(GSM 03.50 version 7.1.1 Release 1998)
Ta slovenski standard je istoveten z: EN 300 903 Version 7.1.1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST EN 300 903 V7.1.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 903 V7.1.1:2003

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SIST EN 300 903 V7.1.1:2003

ETSI EN 300 903 V7.1.1 (2000-11)
European Standard (Telecommunications series)


Digital cellular telecommunications system (Phase 2+);
Transmission planning aspects
of the speech service in the GSM
Public Land Mobile Network (PLMN) system
(GSM 03.50 version 7.1.1 Release 1998)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS

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SIST EN 300 903 V7.1.1:2003
2 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)



Reference
REN/SMG-110350Q7R1
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
ETSI
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© European Telecommunications Standards Institute 2000.
All rights reserved.

ETSI

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SIST EN 300 903 V7.1.1:2003
3 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)
Contents
Intellectual Property Rights . 7
Foreword. 7
1 Scope . 8
1.1 References .8
1.2 Abbreviations .10
1.3 Introduction .10
2 Network configurations. 11
2.1 General .11
2.2 Model of the PLMN .11
2.3 Interfaces .11
2.4 Configurations of connections.12
2.4.1 General configurations of connections.12
2.4.2 Reference configurations to illustrate delay and echo control issues.12
2.5 4-wire circuits in the PLMN.12
3 Transmission performance . 13
3.1 Overall Loss/Loudness ratings .13
3.1.1 Connections with handset MSs.14
3.1.2 Connections with handsfree MSs.14
3.1.3 Connections with headset MSs .14
3.2 Stability Loss.15
3.3 Delay .15
3.3.1 General.15
3.3.2 Sources of delay.15
3.3.2.1 Elements of the PLMN that cause delay .15
3.3.2.2 Elements of the PSTN that cause delay.16
3.3.3 Effects of delay .16
3.3.4 Allocation of delay to the PLMN.16
3.3.4.1 Allocation of delay to the PLMN when using a full rate system.16
3.3.4.2 Allocation of delay to the PLMN when using a half rate system.16
3.3.5 Delay of various network configurations.17
3.3.5.1 National and international connections with no echo control in the PSTN (reference
configurations A) .17
3.3.5.2 National and international connections with echo control in the PSTN (reference configurations
B).17
3.3.5.3 Connections where re-routeing leads to a significant increase in transmission path length
(reference configurations C).17
3.3.6 Delay related requirements on the MS.17
3.3.6.1 Full rate MS.17
3.3.6.2 Half rate MS.17
3.3.6.3 Handsfree MS.17
3.4 Echo.18
3.4.1 General.18
3.4.2 Electrical echo control in the PLMN (Reference configurations A).18
3.4.3 Acoustic echo control in the PLMN .18
3.4.3.1 Acoustic echo control in a handsfree MS.19
3.4.3.2 Acoustic echo control in a handset MS .19
3.4.3.3 Acoustic echo control in a headset MS .19
3.4.4 Interaction between tandem echo control devices (reference configurations B & C).19
3.5 Clipping.19
3.5.1 General.19
3.5.2 Properties of voice switches in the PLMN.19
3.5.3 Problems of tandem voice switching .20
3.6 Idle channel noise (handset and headset MS).20
3.6.1 Sending .20
3.6.2 Receiving .20
ETSI

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SIST EN 300 903 V7.1.1:2003
4 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)
3.7 Noise contrast .20
3.7.1 General.20
3.7.2 Elements of a PLMN which can cause noise contrast impairment .21
3.7.3 Reduction of noise contrast.21
3.7.3.1 Reduction of noise contrast by limiting the noise received by the microphone .21
3.7.3.1.1 Headset MS .21
3.7.3.1.2 Handset MS .22
3.7.3.1.3 Handsfree MS.22
3.7.3.2 Reduction of noise contrast by insertion of comfort noise .22
3.7.4 Consequence of the introduction of high comfort noise levels on other voice-operated devices .22
3.8 Sensitivity/frequency characteristics .22
3.8.1 Headset and Handset MSs .22
3.8.1.1 Sending.22
3.8.1.2 Receiving .23
3.8.2 Handsfree MS .23
3.8.2.1 Sending.23
3.8.2.2 Receiving .24
3.9 Distortion (handset and headset MS).24
3.9.1 Sending .24
3.9.2 Receiving .25
3.10 Sidetone (handset and headset MS).26
3.10.1 Sidetone loss .26
3.10.2 Sidetone distortion .26
3.11 Out-of-band signals .26
3.11.1 Discrimination against out-of-band input signals .26
3.11.1.1 Handset and headset MS .26
3.11.1.2 Handsfree MS.26
3.11.2 Spurious out-of-band signals .27
3.11.2.1 Handset and headset MS .27
3.11.2.2 Handsfree MS.27
3.12 Requirements for information tones .27
3.13 Crosstalk.27
3.13.1 Near and far end crosstalk.27
3.13.2 Go/return crosstalk.28
3.14 MS Ambient Noise Rejection.28
3.14.1 Full-Rate, (TCH-FS) MS Ambient Noise Rejection (handset MS) .28
3.14.2 Full-Rate, (TCH-FS) MS Ambient Noise Rejection (handsfree MS) .28
3.14.3 Half-Rate, (TCH-HS) MS and Dual-Rate (TCH-FS and TCH-HS) MS Ambient Noise Rejection .28
Annex A (informative): Considerations on the Acoustic Interface of the Mobile Station . 37
A.1 Handsfree MS. 37
A.2 Handset MS . 37
A.3 Headset MS . 37
A.4 Inter-reaction with DTX. 37
Annex B (normative): Test considerations.38
B.1 Test signals. 38
B.1.1 Sinusoidal signals .38
B.1.2 Artificial voice.38
B.2 Test signal levels . 38
B.2.1 Sending.38
B.2.1.1 Handset and headset MSs .38
B.2.1.2 Office type Handsfree MS .38
B.2.1.3 Car type Handsfree MS.39
B.2.2 Receiving.39
B.3 Test rooms . 39
B.3.1 Anechoic room .39
ETSI

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SIST EN 300 903 V7.1.1:2003
5 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)
B.4 Test arrangement . 40
B.4.1 Electro-acoustic equipment .40
B.4.2 Test arrangement for handsfree MS .41
B.4.2.1 Office type handsfree MS .41
B.4.2.2 Car type handsfree MS.41
B.4.2.3 Use of HATS for testing the receive characteristics of the car type handsfree MS .42
B.4.2.3.1 Equalization of HATS.42
B.4.2.3.2 Combination of ear signals.43
Annex C (normative): Transmission requirements testing . 44
C.1 Loudness ratings. 44
C.1.1 Sending Loudness Rating (SLR) - Handset MS .44
C.1.2 Sending Loudness Rating (SLR) - Handsfree MS.44
C.1.3 Receiving Loudness Rating (RLR) - Handset MS.44
C.1.4 Receiving Loudness Rating (RLR) - Handsfree MS .45
C.2 Idle Channel Noise . 45
C.2.1 Sending.45
C.2.2 Receiving.45
C.3 Sensitivity/frequency characteristics. 45
C.3.1 Sending - Handset MS.45
C.3.2 Sending - Handsfree MS .46
C.3.3 Receiving - Handset .46
C.3.4 Receiving - Handsfree .47
C.4 Distortion. 47
C.4.1 Sending.47
C.4.2 Receiving.47
C.5 Variation of gain with input level. 48
C.5.1 Sending.48
C.5.2 Receiving.48
C.6 Sidetone. 48
C.6.1 Talker sidetone (STMR).48
C.6.2 Listener sidetone (LSTR) .48
C.7 Sidetone distortion. 49
C.8 Out-of-band signals . 49
C.8.1 Discrimination against out-of-band input signal for handset and headset MS .49
C.8.2 Spurious out-of-band signals for handset and headset MS.49
C.8.3 Discrimination against out-of-band signals for handsfree MS .49
C.8.4 Spurious out-of-band emissions for handsfree MS.49
C.9 Acoustic echo loss . 50
C.9.1 Acoustic echo loss - Handset MS .50
C.9.2 Acoustic echo loss - Handsfree MS.50
C.10 Delay for handsfree MS. 51
C.10.1 Uplink.51
C.10.2 Downlink.51
C.10.3 Result.51
C.11 Ambient noise rejection. 51
C.11.1 Full-Rate, (TCH-FS) MS Ambient Noise Rejection (handset MS).53
C.11.2 Full-Rate, (TCH-FS) MS Ambient Noise Rejection (handsfree MS).53
C.11.3 Half-Rate, (TCH-HS) MS and Dual-Rate (TCH-FS and TCH-HS) MS Ambient Noise Rejection.53
ETSI

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SIST EN 300 903 V7.1.1:2003
6 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)
Annex D (normative): MS delay requirement definition. 54
D.1 Full rate MS delay requirement definition . 54
D.2 Half rate MS delay requirement definition. 55
Annex E (informative): Adaptive gain control . 56
Annex F (informative): Change Request History. 57
History . 58

ETSI

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SIST EN 300 903 V7.1.1:2003
7 ETSI EN 300 903 V7.1.1 (2000-11)
(GSM 03.50 version 7.1.1 Release 1998)
Intellectual Property Rights
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server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications serie
...