1、 ETSI TS 1Digital cellular telecommUniversal Mobile TeleCIn-banCon(3GPP TS 26.2floppy3TECHNICAL SPECIFICATION126 269 V13.0.0 (2016mmunications system (Phase elecommunications System (eCall data transfer; and modem solution; o formance testing .269 version 13.0.0 Release 1316-02) e 2+) (GSM); (UMTS);
2、 13) ETSI ETSI TS 126 269 V13.0.0 (2016-02)13GPP TS 26.269 version 13.0.0 Release 13Reference RTS/TSGS-0426269vd00 Keywords LTE 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
3、 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 and/or print versions of
4、the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific ne
5、twork drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the
6、 present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as aut
7、horized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, P
8、LUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Associ
9、ation. ETSI ETSI TS 126 269 V13.0.0 (2016-02)23GPP TS 26.269 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETS
10、I 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 Secretariat. Latest updates are available on the ETSI Web server (https:/ip
11、r.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 ETSI Web server) which are, or may be, or may become, essential
12、to the present document. Foreword This Technical Specification (TS) 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 a
13、s being references to the corresponding ETSI deliverables. The cross 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“, “wil
14、l“, “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 “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 269 V13.0.0 (2016-02)33GPP
15、TS 26.269 version 13.0.0 Release 13Contents Intellectual Property Rights 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 7
16、g35.2 Minimum performance requirements . 8g35.2.1 MSD transmission 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 qua
17、lity 10g35.2.3 Transmission failures 10g35.2.4 False detection due to signalling tones . 11g35.2.5 Push messages 11g35.2.6 HLACK messages 11g3Annex A (normative): Test sequences and scripts for testing bit-exact implementation of eCall in-band modem. 12g3A.1 Testing a bit-exact implementation of the
18、 IVS transmitter function 12g3A.2 Testing a bit-exact implementation of the PSAP transmitter function . 13g3A.3 Testing a bit-exact implementation of the IVS receiver function 14g3A.4 Testing a bit-exact implementation of the PSAP receiver function . 14g3Annex B (normative): Test set-up and sequence
19、s for testing minimum performance of eCall in-band modem receivers 16g3B.1 Modem Transmission Performance 16g3B.1.2 Test Tone Sensitivity 17g3Annex C (normative): Additional Performance Requirements . 18g3Annex D (informative): Change history . 19g3History 20g3ETSI ETSI TS 126 269 V13.0.0 (2016-02)4
20、3GPP TS 26.269 version 13.0.0 Release 13Foreword The present document 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
21、 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 to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved docume
22、nt 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 changes have been incorporated in the document. ETSI ETSI TS 126 269 V13.0.0 (2016-02)53GPP TS 26.269
23、version 13.0.0 Release 131 Scope This Technical Specification (TS) specifies minimum performance requirements, test procedures and digital test sequences to be used for conformance testing of implementations of the eCall in-band modem. The eCall in-band modem PSAP and IVS transmitters and receivers
24、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 reliably over the speech channel of the cellular and PSTN networks. It is specifically designed for tran
25、smission 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 single MSD of length 140 bytes. Other applications of the eCall in-band modem are out of scope of this
26、 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 (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific
27、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 reference implicitly refers to the latest version of that document in the same Release as the present docum
28、ent. 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: “eCall data transfer; In-band modem solution; Characterization report“. 4 3GPP TS 46.001: “Full rate sp
29、eech; 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“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and
30、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 minimum set of emergenc
31、y related data (MSD), as defined under the EU Commission“s 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 the voice channel of
32、the emergency voice call through cellular and PSTN networks. eSafety: European Commission sponsored forum to improve safety aspects of European citizens. ETSI ETSI TS 126 269 V13.0.0 (2016-02)63GPP TS 26.269 version 13.0.0 Release 13feedback frame: downlink signal transmission interval containing fe
33、edback 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 component of an eCall
34、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, the following abbrev
35、iations 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 Mobile communications I
36、VS 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 specification provides minimum p
37、erformance 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. The eCall modem set c
38、onsists 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 V13.0.0 (2016-02)73GPP TS 26.269 version 13.0.0 Release 13g87g94g4g87g3g3 g393g381g396g410g3g282g25
39、8g410g258g3 g3 g24g62g3g272g346g258g374g374g286g367 g3g3 g3 g3g47g115g94g3g90g454 g3 g3g3 g87g94g4g87g3g100g454 g3 g3 g3 g24g62g3g381g437g410g393g437g410g3 g87g18g68g3g400g349g336g374g258g367 g3 g3 g104 g62g3g272g346g258g374g374g286g367 g3 g3 g3 g3g47g115g94g3g100g454 g3 g3g3 g87g94g4g87g3g90g454 g3
40、 g3 g3 g3 g47g115g94g3g3 g393g381g396g410g3g282g258g410g258g3 g3 g47g115g94g3g373g381g282g286g373 g3 g87g94g4g87g3g373g381g282g286g373 g3 g24g62g3g349g374g393g437g410 g3 g87g18g68g3g400g349g336g374g258g367 g3g104g62g3g349g374g393g437g410g3g3 g104g62g3g381g437g410g393g437g410g3 g3 Figure 1: Functiona
41、l 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 implementations. Th
42、e 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 performed by demonstrati
43、ng 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 reference implementa
44、tion 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 minimum performance
45、 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 the testing for
46、 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 interoperabi
47、lity 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 implementations, test sequences and scripts are used for conformance te
48、sting. The test cases consist of input and output reference MSDs, control sequences, and PCM data files. For testing transmitters, input control sequences are fed into the IVS/PSAP transmitter and the corresponding PCM data output of the IVS/PSAP transmitter is recorded. To meet the bit exactness cr
49、iterion, all test cases must yield bit-exact results for the durations of the reference sequences, compared to the provided reference IVS/PSAP PCM output files, starting from the first non-zero output sample. ETSI ETSI TS 126 269 V13.0.0 (2016-02)83GPP TS 26.269 version 13.0.0 Release 13The maximum delay, measured as the number of zero-valued output samples of the IVS transmitter, as a reaction to any of the reference input sequences, shall not exceed 160 samples. The maximum delay, measured as the number of zero-valued output samples of the PSAP t
