1、 ETSI TR 1Digital cellular telecommUniversal Mobile TelTechnical Specifi(3GPP TR 21.9TECHNICAL REPORT 121 900 V12.1.0 (2016mmunications system (Phase elecommunications System (LTE; ification Group working meth.900 version 12.1.0 Release 1216-04) e 2+) (GSM); (UMTS); thods 12) ETSI ETSI TR 121 900 V1
2、2.1.0 (2016-04)13GPP TR 21.900 version 12.1.0 Release 12Reference RTR/TSGS-0021900vc10 Keywords GSM,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 enregistr
3、e 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 the present documen
4、t 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 network drive within
5、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 present document,
6、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 authorized by written
7、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, PLUGTESTSTM, UMTSTMa
8、nd 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 Association. ETSI ETSI TR
9、 121 900 V12.1.0 (2016-04)23GPP TR 21.900 version 12.1.0 Release 12Intellectual 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 ETSI members and non-m
10、embers, 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:/ipr.etsi.org/). Pursu
11、ant 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 to the present docu
12、ment. Foreword This Technical Report (TR) 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
13、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“, “will“, “will not“, “can“ and
14、“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 TR 121 900 V12.1.0 (2016-04)33GPP TR 21.900 version 12.1.0 R
15、elease 12Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g31 Scope 5g31A References 5g3Annex A: Change history 6g3History 8g3ETSI ETSI TR 121 900 V12.1.0 (2016-04)43GPP TR 21.900 version 12.1.0 Release 12Foreword This Technical Specificat
16、ion 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, it will be re-released by the TSG with a
17、n 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. y the second digit is incremented for all
18、 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 In order to ensure correctness and consistency of the specifications (i.e., technical specifications and te
19、chnical reports) under responsibility of the Technical Specification Groups (TSG) of the 3rdGeneration Partnership Project (3GPP), clear, manageable and efficient mechanisms are necessary to handle version control, change control, document updating, distribution and management. The provisions for th
20、is Release are identical with those for the latest Release of TR 21.900 1. ETSI ETSI TR 121 900 V12.1.0 (2016-04)53GPP TR 21.900 version 12.1.0 Release 121 Scope This document outlines the working methods to be used by the 3GPP Technical Specification Groups and their Working Groups and their Sub-Gr
21、oups, and by the 3GPP Support Team in relation to document management, i.e. handling of specifications, updating procedures, Change Request procedures, version control mechanisms, specifications status information etc. It complements the rules and procedures defined for 3GPP. This document does not
22、stipulate the details of the internal working of the TSG Sub-Groups. From the Technical Specification Group point of view, a task and responsibility is given to a Working Group directly answering to the Technical Specification Group. In practice, the work/task may be carried out in a subgroup of tha
23、t Working Group. 1A 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
24、 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 do
25、cument. 1 3GPP TR 21.900 Release 13: “Technical Specification Group working methods“. ETSI ETSI TR 121 900 V12.1.0 (2016-04)63GPP TR 21.900 version 12.1.0 Release 12Annex A: Change history Change history TSG SA# Version CR Tdoc SA New Version Subject/Comment SP-04 3.0.0 001 SP-99288 3.1.0 Alignment
26、with TSG SA decisions made at TSG#3. Deletion of Strategic/non strategic CR references. Change of PT to Support Team, editorial corrections. 002 SP-99289 Harmonisation of the use of software for 3GPP documents in order to minimise the errors due to software conversion problems and to allow efficient
27、 interchange of electronic files for electronic working. SP-05 3.1.0 003 SP-99428 3.2.0 Addition of new text related to electronic working practices. SP-08 3.2.0 005 SP-000279 3.3.0 Clarification and editorial corrections to provisions covering the management of specifications and Work Items. SP-09
28、3.3.0 007 r1 SP-000402 3.4.0 Role of rapporteur for both Specifications and Work Items. 008 r2 SP-000492 Clarification of CR categories. 010 SP-000461 Clarification of CR categories for a frozen 3GPP release. editorial Change of Release 2000 into Release 4, addition of Release 5. SP-10 3.4.0 011 r1
29、SP-000693 3.5.0 Release numbers appearing in CR cover sheets 3.4.0 012 r1 SP-000693 Clarification of the “freezing“ of specifications 3.4.0 013 r2 SP-000693 Release mechanisms SP-11 3.5.0 014 r1 SP-010178 3.6.0 Inclusion of GSM spec numbering scheme 3.6.0 - - 4.0.0 Upgrade to Rel-4. SP-16 4.0.0 - -
30、5.0.0 Upgrade to Rel-5. 2002-09-17 5.0.0 - - 5.0.1 Editorial correction to front cover (change title to read Release 5 instead of Release 4) SP-21 5.0.1 015 SP-030499 6.0.0 Addition of stage 1-2-3 specification structure description SP-22 6.0.0 019 SP-030575 6.1.0 Corrects references SP-23 6.1.0 - -
31、 6.1.1 Corrects Release shown on cover page SP-24 6.1.1 020 SP-040310 6.2.0 Rlease planning: target date setting - Editorial: Correction of second clause 6.0.2 to 6.0.3. SP-25 6.2.0 021 r3 SP-040705 6.3.0 Introduction of “Early Implementation“ process 024 SP-040706 Improved tracking of Work Item sta
32、tus SP-26 6.3.0 025 SP-040824 7.0.0 Editorial clarification of version numbering system, upgrade to Rel-7 SP-28 7.0.0 7.0.1 Editorial corrections to harmonize use of capitalization plus a typographical error SP-29 7.0.1 028 SP-050537 7.1.0 Introduction of the concept of “study item“ SP-32 7.1.0 029
33、SP-060403 7.2.0 Inclusion of “study item“ in definition of “work item“ 030 Change “short“ to “long“ WG abbreviations 031 r1 Correct references to obsolete TSG. 032 Registration of code points with external bodies SP-37 7.2.0 034 r2 SP-070703 8.0.0 Alignment of working methods with alignment CR pract
34、ice agreed in TSG SA #36 SP-38 8.0.0 035 SP-070900 8.1.0 Addition of 36.-series to Specs series table 8.1.0 8.1.1 Correct typo in previous entry in history table SP-39 8.1.1 036 r2 SP-080079 8.2.0 Clarification of version nomenclature SP-42 8.2.0 037 r3 SP-080897 8.3.0 Determination of freeze dates
35、for stages of a Release. (Correction recommended by OP ad hoc group on improvements.) 038 r1 SP-080721 Cross-TSG work coordination. (Correction recommended by OP ad hoc group on improvements.) 039 r2 Introduction of concept of “exception sheets“ for late-running work items SP-46 8.3.0 9.0.0 Upgrade
36、without technical change to Rel-9 SP-51 9.0.0 10.0.0 Upgrade without technical change to Rel-10 SP-54 10.0.0 045 SP-110802 11.0.0 The use of Category A CRs 11.0.0 11.0.12013-06: Corrects cased of letter “i“ shown against value 18 in table 5. SP-65 11.0.1 047 SP-140445 11.1.0 Correction to implementa
37、tion of CR0045 043r2 SP-140446 Encourage allocation of CR number at first sight ETSI ETSI TR 121 900 V12.1.0 (2016-04)73GPP TR 21.900 version 12.1.0 Release 12Change history TSG SA# Version CR Tdoc SA New Version Subject/Comment 11.1.0 12.0.0 Upgrade to Release 12 without technical change Change his
38、tory Date Meeting TDoc CR Rev Cat Subject/Comment New version 2016-03 SA#71 SP-160183 0051 F Eliminate contents of Rel-12 and substitute with pointer to Rel-13 12.1.0 ETSI ETSI TR 121 900 V12.1.0 (2016-04)83GPP TR 21.900 version 12.1.0 Release 12History Document history V12.0.0 September 2014 Publication V12.1.0 April 2016 Publication
