1、 ETSI TS 126 131 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; Terminal acoustic characteristics for telephony; Requirements (3GPP TS 26.131 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 126 131 V15.0.0 (2018-07)13GPP TS 26.131 version 15.0.0 Release 15R
2、eference RTS/TSGS-0426131vf00 Keywords LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice
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15、ryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and
16、“must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 131 V15.0.0 (2018-07)33GPP TS 26.131 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 7g3Introduction 7g31 Scope 8g32 References
17、8g33 Definitions, symbols and abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 9g34 Interfaces 10g35 Narrowband telephony transmission performance . 11g35.1 Applicability . 11g35.2 Overall loss/loudness ratings 11g35.2.1 General 11g35.2.2 Connections with handset UE . 11g35.2.2a Connections
18、 with handset UE in the presence of background noise . 11g35.2.3 Connections with desktop and vehicle-mounted hands-free UE. 11g35.2.4 Connections with hand-held hands-free UE . 12g35.2.5 Connections with headset UE . 12g35.2.5a Connections with headset UE in the presence of background noise . 12g35
19、.3 Idle channel noise (handset and headset UE) . 12g35.3.1 Sending . 12g35.3.2 Receiving 13g35.4 Sensitivity/frequency characteristics 13g35.4.1 Handset and headset UE sending 13g35.4.2 Handset and headset UE receiving . 14g35.4.3 Desktop and vehicle-mounted hands-free UE sending . 15g35.4.4 Desktop
20、 and vehicle-mounted hands-free UE receiving . 16g35.4.5 Hand-held hands-free UE sending 17g35.4.6 Hand-held hands-free UE receiving 18g35.5 Sidetone characteristics (handset and headset UE) 19g35.5.1 Sidetone loss . 19g35.5.2 Sidetone delay. 19g35.6 Stability loss . 20g35.7 Acoustic echo control .
21、20g35.7.1 General 20g35.7.2 Acoustic echo control in desktop and vehicle-mounted hands-free UE . 20g35.7.3 Acoustic echo control in hand-held hands-free UE 20g35.7.4 Acoustic echo control in a handset UE . 21g35.7.5 Acoustic echo control in a headset UE . 21g35.8 Distortion 21g35.8.1 Sending distort
22、ion . 21g35.8.2 Receiving 22g35.9 Void 22g35.10 Information on other parameters (not normative) 23g35.11 Sending performance in the presence of ambient noise . 23g35.11.1 General 23g35.11.2 Connections with handset UE . 23g35.11.3 Connections with Handheld hands-free UE 23g35.12 Delay 23g35.12.0 UE
23、delay definition . 23g35.12.1 Handset UE . 24g3ETSI ETSI TS 126 131 V15.0.0 (2018-07)43GPP TS 26.131 version 15.0.0 Release 155.12.2 Headset UE . 25g35.12.2.1 Wired headset 25g35.12.2.2 Wireless headset 26g35.13 Echo control characteristics 26g35.13.1 Handset . 27g35.13.2 Headset . 27g35.13.3 Handhe
24、ld hands-free . 27g35.13.4 Desktop and vehicle mounted hands-free . 27g35.14 Clock accuracy . 27g35.15 Jitter buffer management behaviour . 28g36 Wideband telephony transmission performance 28g36.1 Applicability . 28g36.2 Overall loss/loudness ratings 28g36.2.1 General 28g36.2.2 Connections with han
25、dset UE . 28g36.2.2a Connections with handset UE in the presence of background noise . 29g36.2.3 Connections with desktop and vehicle-mounted hands-free UE. 29g36.2.4 Connections with hand-held hands-free UE . 29g36.2.5 Connections with headset UE . 29g36.2.5a Connections with headset UE in the pres
26、ence of background noise . 30g36.3 Idle channel noise (handset and headset UE) . 30g36.3.1 Sending . 30g36.3.2 Receiving 30g36.4 Sensitivity/frequency characteristics 30g36.4.1 Handset and headset UE sending 30g36.4.2 Handset and headset UE receiving . 31g36.4.3 Desktop and vehicle-mounted hands-fre
27、e UE sending . 32g36.4.4 Desktop and vehicle-mounted hands-free UE receiving . 33g36.4.5 Hand-held hands-free UE sending 34g36.4.6 Hand-held hands-free UE receiving 35g36.5 Sidetone characteristics (handset and headset UE) 37g36.5.1 Sidetone loss . 37g36.5.2 Sidetone delay. 37g36.6 Stability loss .
28、37g36.7 Acoustic echo control . 38g36.7.1 General 38g36.7.2 Acoustic echo control in desktop and vehicle-mounted hands-free UE . 38g36.7.3 Acoustic echo control in hand-held hands-free UE 38g36.7.4 Acoustic echo control in a handset UE . 38g36.7.5 Acoustic echo control in a headset UE . 39g36.8 Dist
29、ortion 39g36.8.1 Sending distortion . 39g36.8.2 Receiving 40g36.9 Void 40g36.10 Sending performance in the presence of ambient noise . 40g36.10.1 General 40g36.10.2 Connections with handset UE . 40g36.10.3 Connections with Handheld hands-free UE 41g36.11 Delay 41g36.11.0 UE delay definition . 41g36.
30、11.1 Handset UE . 41g36.11.2 Headset UE . 43g36.11.2.1 Wired headset 43g36.11.2.2 Wireless headset 44g36.12 Echo control characteristics 44g36.12.1 Handset . 45g36.12.2 Headset . 45g36.12.3 Handheld hands-free . 45g36.12.4 Desktop and vehicle mounted hands-free . 45g36.13 Clock accuracy . 45g36.14 J
31、itter buffer management behaviour . 45g3ETSI ETSI TS 126 131 V15.0.0 (2018-07)53GPP TS 26.131 version 15.0.0 Release 157 Super-wideband telephony transmission performance . 45g37.1 Applicability . 45g37.2 Overall loss/loudness ratings 46g37.2.1 General 46g37.2.2 Connections with handset UE . 46g37.2
32、.2a Connections with handset UE in the presence of background noise . 46g37.2.3 Connections with desktop and vehicle-mounted hands-free UE. 46g37.2.4 Connections with hand-held hands-free UE . 47g37.2.5 Connections with headset UE . 47g37.2.5a Connections with headset UE in the presence of backgroun
33、d noise . 47g37.3 Idle channel noise (handset and headset UE) . 48g37.3.1 Sending . 48g37.3.2 Receiving 48g37.4 Sensitivity/frequency characteristics 48g37.4.0 General 48g37.4.1 Handset and headset UE sending 48g37.4.2 Handset and headset UE receiving . 49g37.4.2.1 Handset UE receiving . 49g37.4.2.2
34、 Headset UE receiving 51g37.4.3 Desktop and vehicle-mounted hands-free UE sending . 51g37.4.4 Desktop and vehicle-mounted hands-free UE receiving . 52g37.4.5 Hand-held hands-free UE sending 53g37.4.6 Hand-held hands-free UE receiving 53g37.5 Sidetone characteristics (handset and headset UE) 54g37.5.
35、1 Sidetone loss . 54g37.5.2 Sidetone delay. 55g37.6 Stability loss . 55g37.7 Acoustic echo control . 55g37.7.1 General 55g37.7.2 Acoustic echo control in desktop and vehicle-mounted hands-free UE . 55g37.7.3 Acoustic echo control in hand-held hands-free UE 56g37.7.4 Acoustic echo control in a handse
36、t UE . 56g37.7.5 Acoustic echo control in a headset UE . 56g37.8 Distortion 56g37.8.1 Sending distortion . 56g37.8.2 Receiving 57g37.9 Void 58g37.10 Sending performance in the presence of ambient noise . 58g37.10.1 General 58g37.10.2 Connections with handset UE . 58g37.10.3 Connections with Handheld
37、 hands-free UE 58g37.11 Delay 59g37.11.0 UE delay definition . 59g37.11.1 Handset UE . 59g37.11.2 Headset UE . 60g37.11.2.1 Wired headset 60g37.11.2.2 Wireless headset 62g37.12 Echo control characteristics 62g37.12.1 Handset . 63g37.12.2 Headset . 63g37.12.3 Handheld hands-free . 63g37.12.4 Desktop
38、and vehicle mounted hands-free . 63g37.13 Clock accuracy . 63g37.14 Jitter buffer management behaviour . 64g38 Fullband telephony transmission performance . 64g38.1 Applicability . 64g38.2 Overall loss/loudness ratings 64g38.2.1 General 64g38.2.2 Connections with handset UE . 64g38.2.2a Connections
39、with handset UE in the presence of background noise . 64g38.2.3 Connections with desktop and vehicle-mounted hands-free UE. 64g3ETSI ETSI TS 126 131 V15.0.0 (2018-07)63GPP TS 26.131 version 15.0.0 Release 158.2.4 Connections with hand-held hands-free UE . 64g38.2.5 Connections with headset UE . 64g3
40、8.2.5a Connections with headset UE in the presence of background noise . 65g38.3 Idle channel noise (handset and headset UE) . 65g38.3.1 Sending . 65g38.3.2 Receiving 65g38.4 Sensitivity/frequency characteristics 65g37.4.0 General 65g38.4.1 Handset and headset UE sending 65g38.4.2 Handset and headse
41、t UE receiving . 65g38.4.2.1 Handset UE receiving . 65g38.4.2.2 Headset UE receiving 65g38.4.3 Desktop and vehicle-mounted hands-free UE sending . 65g38.4.4 Desktop and vehicle-mounted hands-free UE receiving . 65g38.4.5 Hand-held hands-free UE sending 66g38.4.6 Hand-held hands-free UE receiving 66g
42、38.5 Sidetone characteristics (handset and headset UE) 66g38.5.1 Sidetone loss . 66g38.5.2 Sidetone delay. 66g38.6 Stability loss . 66g38.7 Acoustic echo control . 66g38.7.1 General 66g38.7.2 Acoustic echo control in desktop and vehicle-mounted hands-free UE . 66g38.7.3 Acoustic echo control in hand
43、-held hands-free UE 66g38.7.4 Acoustic echo control in a handset UE . 66g38.7.5 Acoustic echo control in a headset UE . 66g38.8 Distortion 67g38.8.1 Sending distortion . 67g38.8.2 Receiving 67g38.9 Void 67g38.10 Sending performance in the presence of ambient noise . 67g38.10.1 General 67g38.10.2 Con
44、nections with handset UE . 67g38.10.3 Connections with Handheld hands-free UE 67g38.11 Delay 67g38.11.0 UE delay definition . 67g38.11.1 Handset UE . 68g38.11.2 Headset UE . 68g38.11.2.1 Wired headset 68g38.11.2.2 Wireless headset 69g38.12 Echo control characteristics 69g38.12.1 Handset . 69g38.12.2
45、 Headset . 69g38.12.3 Handheld hands-free . 70g38.12.4 Desktop and vehicle mounted hands-free . 70g38.13 Clock accuracy . 70g38.14 Jitter buffer management behaviour . 70g3Annex A (informative): Change history . 71g3History 73g3ETSI ETSI TS 126 131 V15.0.0 (2018-07)73GPP TS 26.131 version 15.0.0 Rel
46、ease 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document,
47、 it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control.
48、y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. Introduction The present document specifies minimum performance requirements fo
49、r the acoustic characteristics of 3G, LTE, and WLAN terminals when used to provide narrowband, wideband, super-wideband or fullband telephony. The objective for narrowband services is to reach a quality as close as possible to ITU-T standards for PSTN circuits. However, 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. The performance requirements are specified in the main body of the text; the test methods and considerations are described in TS 2
