ETSI ETS 300 176-2 ed.2 (1996-11)
Digital Enhanced Cordless Telecommunications (DECT); Approval test specification; Part 2: Speech
Digital Enhanced Cordless Telecommunications (DECT); Approval test specification; Part 2: Speech
RE/RES-03028-2
Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Specifikacija odobritvenega preskusa - 2. del: Govor
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST ETS 300 176-2:1999
01-julij-1999
'LJLWDOQHL]EROMãDQHEUH]YUYLþQHWHOHNRPXQLNDFLMH '(&7 6SHFLILNDFLMD
RGREULWYHQHJDSUHVNXVDGHO *RYRU
Digital Enhanced Cordless Telecommunications (DECT); Approval test specification;
Part 2: Speech
Ta slovenski standard je istoveten z: ETS 300 176-2 Edition 2
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
'(&7
SIST ETS 300 176-2:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST ETS 300 176-2:1999
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SIST ETS 300 176-2:1999
EUROPEAN ETS 300 176-2
TELECOMMUNICATION November 1996
STANDARD Second Edition
Source: ETSI TC-RES Reference: RE/RES-03028-2
ICS: 33.020, 33.060.50
Key words: DECT, radio, speech, testing, type approval
Radio Equipment and Systems (RES);
Digital Enhanced Cordless Telecommunications (DECT);
Approval test specification;
Part 2: Speech
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1996. All rights reserved.
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ETS 300 176-2: November 1996
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
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ETS 300 176-2: November 1996
Contents
Foreword .7
1 Scope .9
2 Normative references.10
3 Definitions and abbreviations .12
3.1 Definitions .12
3.2 Abbreviations .14
4 Interpretation of the measurement results .15
5 General test requirements.15
5.1 Test philosophy.15
5.1.1 Equipment supporting an ETSI approved profile.15
5.1.2 Equipment not supporting an ETSI approved profile.16
5.1.3 Applicant's declaration.16
5.2 Low noise room.17
5.3 Lower Tester (LT) .17
5.3.1 Description .17
5.3.2 Connections between the EUT and the LT .17
5.3.3 Functions and abilities.17
5.3.4 Measurement uncertainty.17
6 General testing conditions.18
6.1 Environment for tests.18
6.2 Power supply limitations .18
6.3 Power source.18
7 Speech and telephony tests .18
7.1 Test configurations .18
7.1.1 General.18
7.1.2 Testing a DECT system .18
7.1.3 Testing a separate PP or FP.19
7.1.4 Reference FP (ReFP) and Reference PP (RePP) .20
7.1.5 Applicability of tests.21
7.2 Digital signal level .21
7.3 General conditions of test .22
7.4 Ideal codec.22
7.5 Electro-acoustical equipment.23
7.6 Speech coding scheme .23
7.6.1 Requirement for speech coding algorithm .23
7.6.2 Applicant's declaration on speech coding algorithm .23
7.6.3 Requirement for the TAP in the FP .23
7.6.4 Applicant's declaration on the TAP in the FP .23
7.7 PP sending frequency response.24
7.7.1 Requirement.24
7.7.2 Method of measurement .24
7.8 PP receiving frequency response .24
7.8.1 Requirement.24
7.8.2 Method of measurement .25
7.9 PP loudness rating.25
7.9.1 Requirement.25
7.9.2 Method of measurement .25
7.9.2.1 SLR .25
H
7.9.2.2 RLR .25
H
7.10 User controlled volume control in the PP.25
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7.10.1 Requirement . 25
7.10.2 Method of measurement. 26
7.10.2.1 SLR . 26
H
7.10.2.2 RLR . 26
H
7.11 PP talker sidetone masking rating. 26
7.11.1 Requirement . 26
7.11.2 Method of measurement. 26
7.12 Listener SideTone (LST) . 27
7.12.1 LSTR requirement . 27
7.12.2 Protocol requirement for EUTs with declared noise rejection capability. 27
7.12.3 Method of measurement for LSTR . 27
7.12.4 Method of measurement for the protocol requirement for EUTs with
declared noise rejection capability applying to be approved separately . 28
7.12.5 Applicant's declaration for the protocol requirement for EUTs applying to
be approved as a DECT system. 28
7.13 Terminal Coupling Loss (TCLw) of a PP. 28
7.13.1 TCLw requirement . 28
7.13.2 Protocol requirement . 28
7.13.3 Method of measurement for TCLw for a PP being approved separately. 28
7.13.4 Method of measurement for TCLw for a PP being approved as part of a
DECT system. 29
7.13.5 Method of measurement for the protocol requirement for EUTs applying
to be approved separately . 29
7.13.6 Applicant's declaration for the protocol requirement for EUTs applying to
be approved as a DECT system. 29
7.14 FP echo control functions with a 4-wire interface. 30
7.14.1 Static requirements. 30
7.14.2 Dynamic requirements. 30
7.14.2.1 Minimum TCLw. 30
7.14.2.2 Full TCLw. 30
7.14.3 Artificial echo loss of a FP with a 4-wire interface . 30
7.14.3.1 Requirement for artificial echo loss. 30
7.14.3.2 Requirement for the ability to disable the artificial echo
loss. 31
7.14.3.3 Method of measurement of artificial echo loss . 31
7.14.3.4 Method of measurement for ability to disable artificial
echo loss. 31
7.14.3.4.1 EUTs being approved as separate
items. 31
7.14.3.4.2 EUTs being approved as a DECT
system with a PP having full TCLw . 31
7.14.4 Echo control device of a FP with a 4-wire interface. 31
7.14.4.1 Requirement for the echo control device . 31
7.14.4.2 Requirement for the ability to disable the echo control
device. 31
7.14.4.3 Method of measurement for the echo control device. 32
7.14.4.4 Method of measurement for the ability to disable the echo
control function. 32
7.14.4.4.1 EUTs being approved as separate
items. 32
7.14.4.4.2 EUTs being approved as a DECT
system with a PP having full TCLw . 32
7.15 Stability loss - fixed geometry. 32
7.15.1 Requirement . 32
7.15.2 Method of measurement. 32
7.16 Stability loss variable geometry. 33
7.16.1 Requirement . 33
7.16.2 Method of measurement. 33
7.17 Sending distortion. 33
7.17.1 Requirement . 33
7.17.2 Method of measurement. 33
7.18 Receiving distortion. 34
7.18.1 Requirement . 34
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7.18.2 Method of measurement .34
7.19 Side tone distortion .34
7.19.1 Requirement.34
7.19.2 Method of measurement .34
7.20 Out of band (sending) .34
7.20.1 Requirement.34
7.20.2 Method of measurement .34
7.21 Out of band (receiving) .35
7.21.1 Requirement.35
7.21.2 Method of measurement .35
7.22 Sending noise .35
7.22.1 Requirement.35
7.22.2 Method of measurement .35
7.23 Sending noise (narrow band).36
7.23.1 Requirement.36
7.23.2 Method of measurement .36
7.24 Receiving noise.36
7.24.1 Requirement.36
7.24.2 Method of measurement .36
7.25 Sampling frequency level (receiving).36
7.25.1 Requirement.36
7.25.2 Method of measurement .36
7.26 Acoustic shock.36
7.27 DECT network delay.37
7.27.1 Requirement.37
7.27.2 Method of measurement .37
7.28 PP delay.38
7.28.1 Requirement.38
7.28.2 Method of measurement .38
7.29 FP delay.40
7.29.1 Requirement.40
7.29.2 Method of measurement .40
7.30 Echo control at the network side.41
7.30.1 Requirement.41
7.30.2 Method of measurement .41
7.30.2.1 4-wire interface .42
7.30.2.2 Analogue 2-wire interface.42
7.30.2.2.1 Requirement 1 .42
7.30.2.2.2 Requirement 2 .43
7.31 Variation of gain with input level-sending.44
7.31.1 Requirement.44
7.31.2 Method of measurement .44
7.32 Variation of gain with input level- receiving.45
7.32.1 Requirement.45
7.32.2 Method of measurement .45
8 Loudspeaking and handsfree telephony .45
Annex A (informative): Essential requirement justification.46
Annex B (informative): Description of the CSS .47
B.1 General.47
B.2 Test signal.47
B.3 Measurement .48
B.4 Calculation.49
Annex C (normative): Description of the cross-correlation method.51
C.1 Test signal.51
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C.2 Calculation . 51
Annex D (informative): Acoustic shock requirements. 52
D.1 Continuous signal . 52
D.2 Peak signal . 52
Annex E (informative): Bibliography . 53
History. 54
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Foreword
This 2nd edition European Telecommunication Standard (ETS) has been produced by the Radio
Equipment and Systems (RES) Technical Committee of the European Telecommunications Standards
Institute (ETSI).
This ETS contains text pertaining to approval testing of the Digital Enhanced Cordless
Telecommunications (DECT) Common Interface. Such text should be considered as guidance to approval
(or licensing) authorities.
Details of the DECT Common Interface may be found in ETS 300 175, parts 1 to 9 [1] to [9]. Further
details of the DECT system may be found in ETR 015, ETR 043, and ETR 056 (see annex E).
This ETS consists of 2 parts as follows:
Part 1: "Radio";
Part 2: "Speech".
Transposition dates
Date of adoption of this ETS: 25 October 1996
Date of latest announcement of this ETS (doa): 28 February 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 August 1997
Date of withdrawal of any conflicting National Standard (dow): 31 August 1997
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1 Scope
This European Telecommunications Standard (ETS) specifies the approval tests applicable to all Digital
Enhanced Cordless Telecommunications (DECT) equipment accessing the DECT frequency band
1 880 MHz to 1 900 MHz (including provisions for testing other or extended frequency bands) and the
approval tests applicable to DECT speech transmission using CCITT Recommendation G.726 [23]
ADPCM speech codec at 32 kbit/s.
The aims of this ETS are to ensure:
- efficient use of frequency spectrum;
- no harm done to any connected network and its services;
- no harm done to other radio networks and services;
- no harm done to other DECT equipment or its services;
- interworking of terminal equipment via the public telecommunications network,
through testing those provisions of ETS 300 175, parts 1 to 9 [1] to [9] which are relevant to these aims.
The tests of this ETS split into two parts:
- part 1 covers testing of radio frequency parameters, security elements and those DECT protocols
that facilitate the radio frequency tests and efficient use of frequency spectrum;
- this part describes testing of DECT 32 kbit/s ADPCM speech requirements between network
interface and DECT PT, or between a DECT CI air interface and alternatively a DECT PT or FT.
This part is not applicable to terminal equipment specially designed for the disabled (e.g. with
amplification of received speech as an aid for the hard of hearing).
DECT comprises two equipment elements, referred to as a Fixed Part (FP) and a Portable Part (PP). This
part is structured to allow type approval of either:
a) the FP and PP together; or
b) the FP and PP as separate items.
Where the DECT FP is connected to a PSTN, and there are any national peculiarities in the requirements
for voice telephony, these shall be accommodated within the FP.
NOTE: The contents of this ETS may be amended according to changes to the associated
regulatory requirements.
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2 Normative references
This ETS incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ETS 300 175-1: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 1:
Overview".
[2] ETS 300 175-2: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 2: Physical
Layer".
[3] ETS 300 175-3: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 3: Medium
Access Control (MAC) layer".
[4] ETS 300 175-4: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 4: Data
Link Control (DLC) layer".
[5] ETS 300 175-5: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network
(NWK) layer".
[6] ETS 300 175-6: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 6:
Identities and addressing".
[7] ETS 300 175-7: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 7: Security
features".
[8] ETS 300 175-8: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 8: Speech
coding and transmission".
[9] ETS 300 175-9: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Common Interface (CI); Part 9: Public
Access Profile (PAP)".
[10] ETS 300 001 (1992): "Attachments to Public Switched Telephone Network
(PSTN); General technical requirements for equipment connected to an
analogue subscriber interface in the PSTN (NET 4)".
[11] ETS 300 111: "Integrated Services Digital Network (ISDN); Telephony 3,1 kHz
teleservice; Service description".
[12] ETS 300 444: "Radio Equipment and Systems (RES); Digital European
Cordless Telecommunications (DECT); Generic Access Profile (GAP)".
[13] TBR 3: "Integrated Services Digital Network (ISDN); Attachment requirements
for terminal equipment to connect to an ISDN using ISDN basic access."
[14] TBR 8 (1994): "Integrated Services Digital Network (ISDN); Telephony 3,1 kHz
teleservice; Attachment requirements for handset terminals".
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[15] 73/23/EEC: "Council Directive of 19 February 1973 on the harmonization of the
laws of the Member States relating to electrical equipment designed for use
within certain voltage limits." (Low Voltage Directive).
[16] 91/263/EEC: "Council Directive of 29 April 1991 on the approximation of the
laws of the Member States concerning telecommunications terminal equipment,
including the mutual recognition of their conformity" (Terminal Directive).
[17] CCITT Recommendation G.101 (1988): "The transmission plan".
[18] ITU-T Recommendation G.111: "Loudness ratings (LRs) in an international
connection".
[19] CCITT Recommendation G.122 (1988): "Influence of national systems on
stability talker echo in international connections".
[20] CCITT Recommendation G.223 (1988): "Assumptions for the calculation of
noise on hypothetical reference circuits for telephony".
[21] CCITT Recommendation G.711 (1988): "Pulse code modulation (PCM) of voice
frequencies".
[22] CCITT Recommendation G.712 (1992): "Transmission performance character-
istics of pulse code modulation".
[23] CCITT Recommendation G.726 (1991): "40, 32, 24, 16 kbit/s adaptive
differential pulse code modulation (ADPCM)".
[24] CCITT Recommendation O.132 (1988): "Quantizing distortion measuring
equipment using a sinusoidal test signal".
[25] CCITT Recommendation O.133 (1988): "Equipment for measuring the
performance of PCM encoders and decoders".
[26] ITU-T Recommendation P.50 (1993): "Artificial voices".
[27] ITU-T Recommendation P.51 (1993): "Artificial mouth".
[28] ITU-T Recommendation P.57 (1993): "Artificial ears".
...
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