1、 ETSI TS 132 541 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Self-Organizing Networks (SON); Self-healing concepts and requirements (3GPP TS 32.541 version 14.0.0 Release 14) TECH
2、NICAL SPECIFICATION ETSI ETSI TS 132 541 V14.0.0 (2017-04)13GPP TS 32.541 version 14.0.0 Release 14Reference RTS/TSGS-0532541ve00 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 7
3、42 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 a
4、nd/or print versions of 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) versi
5、on kept on a specific network 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 https:/portal.etsi.org/TB/ETSIDeliverableSta
6、tus.aspx If you find errors in the 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 photoc
7、opying and microfilm except as authorized 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 20
8、17. All rights reserved. DECTTM, PLUGTESTSTM, 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. oneM2M logo is protected for the benefit
9、of its Members GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 132 541 V14.0.0 (2017-04)23GPP TS 32.541 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI.
10、 The information pertaining 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
11、 from the ETSI Secretariat. 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 3
12、14 (or the updates on the ETSI Web server) which are, or may be, or may become, essential 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 usi
13、ng their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as 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
14、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 “must not“ are NOT allowed in ETSI deli
15、verables except when used in direct citation. ETSI ETSI TS 132 541 V14.0.0 (2017-04)33GPP TS 32.541 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g
16、33.1 Definitions 6g33.2 Abbreviations . 7g34 Concepts and background 7g34.1 Overview 7g34.1.1 General description . 7g34.1.2 Recovery actions . 8g34.1.3 General Self-healing procedure 8g34.2 Self-healing Concept 11g34.2.1 Logical Function Blocks . 11g34.2.1.1 Self-healing Input Monitoring Function (
17、SH_MON_F) . 11g34.2.1.2 Self-healing Diagnosis Function (SH_DG_F). 11g34.2.1.3 Triggering Recovery Action/s Function (SH_TG_F) 11g34.2.1.4 Self-healing Evaluating Function (SH_EV_F) 11g34.1.2.5 Self-healing Fallback Function (SH_FB_F) 11g34.2.1.6 NRM IRP Update Function (NRM_UF) . 11g34.2.1.7 Self-h
18、ealing Monitoring and Management Function (SH_MMF). 11g34.2.1.7.1 Self-healing Monitoring and Management Function (SH_MMF_NM). 11g34.2.1.7.2 Self-healing Monitoring and Management Function (SH_MMF_EM) . 11g34.2.1.8 Self-healing of Cell Outage Function (SH_CO_F) . 11g34.2.1.9 Self Recovery of NE soft
19、ware Function (SR_NSW_F) 11g34.2.1.10 Self-healing of Board Fault Function (SH_BF_F) 11g35 Business level requirements . 12g35.1 Requirements 12g35.2 Actor roles 12g35.3 Telecommunications Resources . 12g35.4 High-Level use case . 13g35.4.1 Alarm Triggered Self-healing . 13g35.4.2 Cell outage scenar
20、ios 13g36 Specification level requirements 14g36.1 Requirements 14g36.1.1 Monitoring and Management part 14g36.1.2 Self-healing of Cell Outage Function . 14g36.2 Actor roles 15g36.3 Telecommunications Resources . 15g36.4 Use case 15g36.4.1 Self Recovery of NE Software 15g36.4.2 Self-healing of board
21、 faults . 16g36.4.3 Self Healing of Cell Outage 17g36.4.3.1 Use case Cell Outage Detection 17g36.4.3.2 Use case Cell Outage Recovery 17g36.4.3.3 Use case Cell Outage Compensation. 18g36.4.3.4 Use case Return from Cell Outage Compensation 18g37 Functions and Architecture 19g3ETSI ETSI TS 132 541 V14.
22、0.0 (2017-04)43GPP TS 32.541 version 14.0.0 Release 147.1 Self-healing Logical Architecture 19g37.2 Self-healing Reference Model 20g3Annex A (informative): Change history . 21g3History 22g3ETSI ETSI TS 132 541 V14.0.0 (2017-04)53GPP TS 32.541 version 14.0.0 Release 14Foreword This Technical Specific
23、ation 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
24、 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. y the second digit is incremented for a
25、ll 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 is part of a TS-family covering the 3rdGeneration Partnership Project Technical Spec
26、ification Group Services and System Aspects, Telecommunication management; as identified below: 32.541: “Self-Organizing Networks (SON); Self-Healing Concepts and Requirements“ Stage 2 for Self-Healing is not in a TS of its own. Stage 2 for selected Self-Healing functions is or will be part of 32.52
27、2 6 and 32.762 7. ETSI ETSI TS 132 541 V14.0.0 (2017-04)63GPP TS 32.541 version 14.0.0 Release 141 Scope The present document describes concept and requirements of OAM for Self-Healing of Self-Organizing Networks (SON). 2 References The following documents contain provisions which, through reference
28、 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 reference, subsequent revisions do not apply. - For a non-specific reference, the latest version
29、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 document. 1. 3GPP TS 32.101: “Telecommunication management; Principles and high level requirements“.
30、 2 3GPP TS 32.102: “Telecommunication management; Architecture“. 3 3GPP TS 32.111-1: “Telecommunication management; Fault Management; Part 1: 3G fault management requirements“. 4 3GPP TS 32.301: “Telecommunication management; Configuration Management (CM); Notification Integration Reference Point (I
31、RP): Requirements“. 5 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 6 3GPP TS 32.522: “Telecommunication management; Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS)“ 7 3GPP TS 32.762: “Telecommunication management
32、; Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS)“ 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21.905 5 and the fo
33、llowing apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 5. alarm: See 3GPP TS 32.111-1 3. Cell Outage: Cell outage is the total loss of radio services in the coverage area of a cell. fault: See 3GPP TS 32.111-1 3. Stop conditi
34、on: The Self-healing procedure may include one or more iterations until the related fault is resolved or the thresholds of some parameters (e.g. iteration counter or iteration duration time, etc.) are reached. These thresholds may be used to determine whether to stop the procedure if the related fau
35、lt is still not resolved after several iterations or a long time. We call these thresholds as well as fault resolution the stop conditions. Self-healing Process: When a TCoSH is reached, particular action(s) will be triggered to solve or mitigate the particular fault. ETSI ETSI TS 132 541 V14.0.0 (2
36、017-04)73GPP TS 32.541 version 14.0.0 Release 14Self-healing Function: a Self-healing Function is to monitor a particular TCoSH and then, if necessary, to trigger a Self-healing Process to solve or mitigate the particular fault. Trigger Condition of Self-Healing (TCoSH): it is the condition which is
37、 used to judge whether a Self-healing Process needs to be started. This condition could be an alarm or the detection of a fault. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 5 and the following apply. An abbreviation defined in the present document
38、 takes precedence over the definition of the same abbreviation, if any, in TR 21.905 5. ADAC Automatically Detected and Automatically Cleared ADMC Automatically Detected and Manually Cleared EM Element Manager EPC Evolved Packet Core E-UTRAN Evolved Universal Terrestrial Radio Access Network NE Netw
39、ork Element NM Network ManagerOAM Operation Administration Maintenance SON Self Organizing Networks TCoSH Trigger Condition of Self-Healing UE User Equipment4 Concepts and background 4.1 Overview 4.1.1 General description Self-healing is a functionality of SON. The purpose of Self-healing is to solv
40、e or mitigate the faults which could be solved automatically by triggering appropriate recovery actions. From the point of view of fault management, for each detected fault, appropriate alarms shall be generated by the faulty network entity, regardless of whether it is an ADAC or an ADMC fault. The
41、trigger of Self-healing can be an alarm. In this case, the Self-healing functionality monitors the alarms, and when it finds alarm/s which could be solved automatically, it gathers more necessary information (e.g. measurements, testing result, etc) and does deep analysis, and then according to the a
42、nalysis result, if necessary, it triggers appropriate recovery actions to solve the fault automatically. For some Self-healing functions which are located in NEs and require more rapid response, the trigger of Self-healing can be the detection of a fault. Hence, when a fault is detected, an appropri
43、ate Self-healing Process will be triggered to try to heal the fault automatically. The Self-healing functionality also monitors the execution of the recovery action/s and decides the next step accordingly. After a Self-healing procedure ended, the Self-healing functionality shall generate and forwar
44、d appropriate notifications to inform the IRPManager about the Self-healing result and all the information of the performed recovery actions may be logged. ETSI ETSI TS 132 541 V14.0.0 (2017-04)83GPP TS 32.541 version 14.0.0 Release 144.1.2 Recovery actions In the case of software faults, the recove
45、ry actions may beg20972 a) system initializations (at different levels), b) reload of a backup of software, c) activation of a fallback software load, d) download of a software unit, e) reconfiguration, etc. In the case of hardware faults, the recovery actions depend on the existence and type of red
46、undant (i.e. back-up) resources. If the faulty resource has no redundancy, the recovery actions may be: a) Isolate and remove the faulty resource from service so that it does not disturb other working resources; b) Remove the physical and functional resources (if any) from the service, which are dep
47、endent on the faulty one. This prevents the propagation of the fault effects to other fault-free resources; c) State management related activities for the faulty resource and other affected/dependent resources; d) Reset the faulty resource; e) Other reconfiguration actions, etc. If the faulty resour
48、ce has redundancy, the recovery action shall be changeover, which includes the action a), c) and d) above and a specific recovery sequence. The detail of the specific recovery sequence is out of the scope of the present document. In the case of other kinds of faults, the recovery actions are FFS. 4.
49、1.3 General Self-healing procedure The Self-healing Function has two parts: the monitoring part and the healing process part. The logic view of the general Self-healing procedure is shown in figure 4.1.3-1: ETSI ETSI TS 132 541 V14.0.0 (2017-04)93GPP TS 32.541 version 14.0.0 Release 14Figure 4.1.3-1: logic view of the general Self-healing procedure ETSI ETSI TS 132 541 V14.0.0 (2017-04)103GPP TS 32.541 version 14.0.0 Release 14The general Self-healing procedure includes following steps: Monitoring part: SH01The Self-healing Function monitors
