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SIST EN 301 246 V4.0.1:2003

(Main)

Digital cellular telecommunications system (Phase 2) (GSM); Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.61 version 4.0.1)

Digital cellular telecommunications system (Phase 2) (GSM); Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.61 version 4.0.1)

EN created for GSM Phase2 MS type approval purposes (a revision of GSM Phase 2+ ETS)

Digitalni celični telekomunikacijski sistem (faza 2) – Nadomeščanje in utišanje izgubljenih okvirov pri prometnih kanalih za izboljšani govor s polno hitrostjo (EFR) (GSM 06.61, različica 4.0.1)

General Information

Status
Published
Publication Date
30-Nov-2003
ICS
33.070.50 - Global System for Mobile Communication (GSM)
Technical Committee
SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003
Mandate
T-172
Ref Project
ETSI EN 301 246 V4.0.1 (1997-12) - Digital cellular telecommunications system (Phase 2) (GSM); Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.61 version 4.0.1)

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EN 301 246 V4.0.1:2003EN 301 246 V4.0.1:2003
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EN 301 246 V4.0.1:2003
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2) (GSM); Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.61 version 4.0.1)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 301 246 Version 4.0.1SIST EN 301 246 V4.0.1:2003en01-december-2003SIST EN 301 246 V4.0.1:2003SLOVENSKI
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SIST EN 301 246 V4.0.1:2003



European Telecommunications Standards InstituteEN 301 246 V4.0.1 (1997-12)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2);Substitution and muting of lost frames for EnhancedFull Rate (EFR) speech traffic channels(GSM 06.61 version 4.0.1)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 301 246 V4.0.1:2003



EN 301 246 V4.0.1 (1997-12)2GSM 06.61 version 4.0.1ReferenceDEN/SMG-110661P (bjc0200o.PDF)KeywordsDigital cellular telecommunications system,Global System for Mobile communications (GSM)ETSI SecretariatPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88X.400c= fr; a=atlas; p=etsi; s=secretariatInternetsecretariat@etsi.frhttp://www.etsi.frCopyright NotificationNo 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 1997.All rights reserved.SIST EN 301 246 V4.0.1:2003



EN 301 246 V4.0.1 (1997-12)3GSM 06.61 version 4.0.1ContentsIntellectual Property Rights.4Foreword.41Scope.52Normative references.53Definitions and abbreviations.53.1Definitions.53.2Abbreviations.54General.65Requirements.65.1Error detection.65.2Lost speech frames.65.3First lost SID frame.65.4Subsequent lost SID frames.66Example solution.66.1Example solution for substitution and muting of lost speech frames.66.2Example solution for substitution and muting of lost SID frames.9History.10SIST EN 301 246 V4.0.1:2003



EN 301 246 V4.0.1 (1997-12)4GSM 06.61 version 4.0.1Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect ofETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSIWeb server (http://www.etsi.fr/ipr).Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. Noguarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates onhttp://www.etsi.fr/ipr) which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by the Special Mobile Group (SMG)Technical Committee of the European Telecommunications Standards Institute (ETSI.This EN defines a frame substitution and muting procedure which is used by the Receive (RX) DiscontinuousTransmission (DTX) handler when one or more lost speech or Silence Descriptor (SID) frames are received from theRadio Sub System (RSS) within the digital cellular telecommunications system.This EN corresponds to GSM technical specification, GSM 06.61, version 4.0.0.National transposition datesDate of adoption of this EN:19 December 1997Date of latest announcement of this EN (doa):31 March 1998Date of latest publication of new National Standardor endorsement of this EN (dop/e):30 September 1998Date of withdrawal of any conflicting National Standard (dow):30 September 1998SIST EN 301 246 V4.0.1:2003



EN 301 246 V4.0.1 (1997-12)5GSM 06.61 version 4.0.11ScopeThis EN defines a frame substitution and muting procedure which shall be used by the Receive (RX) DiscontinuousTransmission (DTX) handler when one or more lost speech or Silence Descriptor (SID) frames are received from theRadio Sub System (RSS).The requirements of this EN are mandatory for implementation in all GSM Base Station Systems (BSS)s and MobileStations (MS)s capable of supporting the enhanced Full Rate speech traffic channel. It is not mandatory to follow the bitexact implementation outlined in this EN and the corresponding C-source code.2Normative referencesThis EN incorporates by dated and undated reference, provisions from other publications. These normative referencesare cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequentamendments to or revisions of any of these publications apply to this EN only when incorporated in it by amendment orrevision. For undated references, the latest edition of the publication referred to applies.[1]GSM 05.03 (ETS 300 575): "Digital cellular telecommunications system (Phase 2); Channelcoding".[2]GSM 06.60 (EN 301 245): "Digital cellular telecommunications system; Enhanced Full Rate(EFR) speech transcoding".[3]GSM 06.81 (EN 301 248): "Digital cellular telecommunications system; Discontinuoustransmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels".[4]GSM 08.60 (ETS 300 737): "Digital cellular telecommunications system (Phase 2+); Inbandcontrol of remote transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate trafficchannels".3Definitions and abbreviations3.1Defi
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