1、 ETSI TS 126 269 V14.1.0 (2018-01) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); eCall data transfer; In-band modem solution; Conformance testing (3GPP TS 26.269 version 14.1.0 Release 14) floppy3TECHNICAL SPECIFICATION GLOBAL SYSTEM
2、FOR MOBILE COMMUNICATIONSRETSI ETSI TS 126 269 V14.1.0 (2018-01)13GPP TS 26.269 version 14.1.0 Release 14Reference RTS/TSGS-0426269ve10 Keywords GSM,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
3、 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic
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9、ademarks registered and owned by the GSM Association. ETSI ETSI TS 126 269 V14.1.0 (2018-01)23GPP TS 26.269 version 14.1.0 Release 14Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaini
10、ng to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretaria
11、t. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the
12、 ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the p
13、roperty of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS)
14、 has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cros
15、s reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.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 describ
16、ed in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 269 V14.1.0 (2018-01)33GPP TS 26.269 version 14.1.0 Release 14Contents Intellectual Property R
17、ights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 Normative references . 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 General . 6g35 Conformance 7g35.1 Bit-exactness 7g35.2 Minimum performance requirements . 8g35.2.1 MSD transmission
18、time 8g35.2.1.1 Full campaign (all AMR-FR codec modes plus GSM-FR) . 9g35.2.1.2 Error-free case for AMR 12.2 and FR . 9g35.2.1.3 GSM-HR codec . 9g35.2.1.4 Noisy conditions . 9g35.2.1.5 Scaling of PCM signals . 10g35.2.2 CRC check quality 10g35.2.3 Transmission failures 10g35.2.4 False detection due
19、to signalling tones . 11g35.2.5 Push messages 11g35.2.6 HLACK messages 11g36 IMS eCall Conformance of In-band Modem 11g36.1 General . 11g36.2 Initial Settings 11g36.3 No Time-Warping Conformance Test 12g36.4 Time-Warping Conformance Test 12g3Annex A (normative): Test sequences and scripts for testin
20、g bit-exact implementation of eCall in-band modem. 13g3A.1 Testing a bit-exact implementation of the IVS transmitter function 13g3A.2 Testing a bit-exact implementation of the PSAP transmitter function . 14g3A.3 Testing a bit-exact implementation of the IVS receiver function 15g3A.4 Testing a bit-ex
21、act implementation of the PSAP receiver function . 15g3Annex B (normative): Test set-up and sequences for testing minimum performance of eCall in-band modem receivers 17g3B.1 Modem Transmission Performance 17g3B.1.2 Test Tone Sensitivity 18g3Annex C (normative): Additional Performance Requirements .
22、 19g3Annex D (informative): Change history . 20g3History 21g3ETSI ETSI TS 126 269 V14.1.0 (2018-01)43GPP TS 26.269 version 14.1.0 Release 14Foreword The present document has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing
23、work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, 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
24、 to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. 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 ch
25、anges have been incorporated in the document. ETSI ETSI TS 126 269 V14.1.0 (2018-01)53GPP TS 26.269 version 14.1.0 Release 141 Scope This Technical Specification (TS) specifies minimum performance requirements, test procedures and digital test sequences to be used for conformance testing of implemen
26、tations of the eCall in-band modem. The eCall in-band modem PSAP and IVS transmitters and receivers are specified in TS 26.267 1. The reference fixed point ANSI-C implementation for the specified eCall modem is provided in TS 26.268 2. The eCall in-band modem is a technology that transmits data reli
27、ably over the speech channel of the cellular and PSTN networks. It is specifically designed for transmission of the Minimum Set of Data (MSD) from IVS to PSAP for the Pan-European eCall initiative. For the purpose of the present specification, conformance is determined for the transmission of one si
28、ngle MSD of length 140 bytes. Other applications of the eCall in-band modem are out of scope of this document. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (ide
29、ntified by date of publication, edition number, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific ref
30、erence implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 26.267: “eCall Data Transfer; In-band modem solution; General Description“. 2 3GPP TS 26.268: “eCall Data Transfer; In-band modem solution; ANSI-C reference code“. 3 3GPP TR 26.969:
31、 “eCall data transfer; In-band modem solution; Characterization report“. 4 3GPP TS 46.001: “Full rate speech; Processing functions“. 5 3GPP TS 26.071: “Mandatory speech CODEC speech processing functions; AMR speech Codec; General description“. 6 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“.
32、7 3GPP TS 23.167: “IP Multimedia Subsystem (IMS) emergency sessions“. 8 3GPP TS 24.229: “IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 “ 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present do
33、cument, the terms and definitions given in TR 21.905 6 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 6. eCall: manually or automatically initiated emergency call (TS12) from a vehicle, supplemented with a m
34、inimum set of emergency related data (MSD), as defined under the EU Commissions eSafety initiative. eCall In-band Modem: modem pair (consisting of transmitters and receivers at IVS and PSAP) that operates full-duplex and allows reliable transmission of eCall Minimum Set of Data from IVS to PSAP via
35、the voice channel of the emergency voice call through cellular and PSTN networks. ETSI ETSI TS 126 269 V14.1.0 (2018-01)63GPP TS 26.269 version 14.1.0 Release 14eSafety: European Commission sponsored forum to improve safety aspects of European citizens. feedback frame: downlink signal transmission i
36、nterval containing feedback data - corresponds to a time interval of 180 ms or 1 440 samples at an 8 kHz sampling rate frame: time interval equal to 20 ms (corresponding to one AMR or FR speech frame, represented by 160 samples at an 8 kHz sampling rate) Minimum Set of Data (MSD): forming the data c
37、omponent of an eCall sent from a vehicle to a Public Safety Answering Point or other designated emergency call centre. The MSD has a maximum size of 140 bytes and includes, for example, vehicle identity, location information and time-stamp. 3.2 Abbreviations For the purposes of the present document,
38、 the following abbreviations apply. ACK ACKnowledgement AMR Adaptive Multi-Rate (speech codec) CRC Cyclic Redundancy Check CTM Cellular Text Telephone Modem eIM eCall In-band Modem EU European Union FEC Forward Error Correction FoM Figure of Merit FR Full Rate (speech codec) GSM Global System for Mo
39、bile communications IVS In-Vehicle System MSD Minimum Set of Data NACK Negative ACKnowledgement PCM Pulse Code Modulation PSAP Public Safety Answering Point PSTN Public Switched Telephone Network UMTS Universal Mobile Telecommunications Systems VAD Voice Activity Detection 4 General This specificati
40、on provides minimum performance requirements and test procedures that are necessary to test implementations of the eCall in-band modem for correctness. Correctness in this context means that the tested eCall modem implementation works within the performance parameter range defined in this document.
41、The eCall modem set consists of four main functional entities, i.e., the transmitter and receiver functions within the IVS and PSAP eCall modems. These functional entities are illustrated in Figure 1. ETSI ETSI TS 126 269 V14.1.0 (2018-01)73GPP TS 26.269 version 14.1.0 Release 14g87g94g4g87g3g3 g393
42、g381g396g410g3g282g258g410g258g3 g3 g24g62g3g272g346g258g374g374g286g367 g3g3 g3 g3g47g115g94g3g90g454 g3 g3g3 g87g94g4g87g3g100g454 g3g3 g3 g24g62g3g381g437g410g393g437g410g3g87g18g68g3g400g349g336g374g258g367g3g3 g104 g62g3g272g346g258g374g374g286g367 g3 g3 g3 g3g47g115g94g3g100g454 g3 g3g3 g87g94
43、g4g87g3g90g454 g3g3 g3 g3 g47g115g94g3g3 g393g381g396g410g3g282g258g410g258g3 g3 g47g115g94g3g373g381g282g286g373 g3 g87g94g4g87g3g373g381g282g286g373 g3 g24g62g3g349g374g393g437g410 g3 g87g18g68g3g400g349g336g374g258g367 g3g104g62g3g349g374g393g437g410g3g3 g104g62g3g381g437g410g393g437g410g3 g3 Fig
44、ure 1: Functional components of the IVS and PSAP eCall modems Clause 5 contains the procedures for conformance testing as well as the detailed performance requirements. Annex A explains the digital test sequences and scripts to be executed for conformance testing of bit-exact eCall in-band modem imp
45、lementations. The test sequences and scripts are attached to this specification. Annex B describes the eCall test set-up to be used for minimum performance testing of eCall in-band modem implementations. 5 Conformance Conformance testing of the fixed-point IVS and PSAP transmitters shall be performe
46、d by demonstrating bit-exactness to the fixed-point reference C-code implementation (given in TS 26.268 2). Bit-exactness means that given a specific input sequence, the corresponding digital output sequence of the component under test shall exactly match the time-aligned output sequence of the refe
47、rence implementation 2 of that component. The delay of the output sequence shall not exceed a certain specified limit. Conformance testing of the IVS and PSAP receiver implementations shall be performed by either demonstrating bit-exactness to the reference C-code, or by testing against a set of min
48、imum performance requirements by means of objective measures. The bit-exact approach should be preferred over the application of objective measures if the implementation of the IVS and PSAP receivers follows the one given in the reference C-code. The MSDs, codecs and channel conditions to be used in
49、 the testing for bit-exactness as well as for minimum performance requirements are further described in Annexes A and B. Annex B also specifies the procedures for evaluating the conformance of a receiver implementation with respect to the minimum performance requirements. 5.1 Bit-exactness To guarantee interoperability and data integrity, the implementation of PSAP and IVS transmitters shall be bit-exact. For the IVS and PSAP receivers, the conformance of the implementation may be tested by showing bit-exactness. For bit-exact fixed-point implemen
