1、 ETSI TS 132 391 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Delta synchronization Integration Reference Point (IRP); Requirements (3GPP TS 32.391 version 15.0.0 Release 15) TECHN
2、ICAL SPECIFICATION ETSI ETSI TS 132 391 V15.0.0 (2018-07)13GPP TS 32.391 version 15.0.0 Release 15Reference RTS/TSGS-0532391vf00 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 74
3、2 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 an
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9、marks registered and owned by the GSM Association. ETSI ETSI TS 132 391 V15.0.0 (2018-07)23GPP TS 32.391 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertainin
10、g 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 Secretariat
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13、operty 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 cross
15、 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 describe
16、d 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 132 391 V15.0.0 (2018-07)33GPP TS 32.391 version 15.0.0 Release 15Contents Intellectual Property Ri
17、ghts 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 Requirements for Delta Synchronization between IRP Manager and IRP Agent 6g34.1 Concept 6g34.2 General requiremen
18、ts . 6g34.3 Requirements for operations related to delta synchronization 7g3Annex A (informative): Change history . 9g3History 10g3ETSI ETSI TS 132 391 V15.0.0 (2018-07)43GPP TS 32.391 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership P
19、roject (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 an identifying change of release date and an increase in
20、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 changes of substance, i.e. technical enhancements, corr
21、ections, 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 Specification Group Services and System Aspects; Telecommunic
22、ation management; as identified below: 32.391: “Delta Synchronization Integration Reference Point (IRP): Requirements“. 32.392: “Delta Synchronization Integration Reference Point (IRP); Information Service (IS)“. 32.396: “Delta Synchronization Integration Reference Point (IRP); Solution Set (SS) def
23、initions“. The Itf-N interface is built up by a number of IRPs and a related Name Convention, which realise the functional capabilities over this interface. The basic structure of the IRPs is defined in 3GPP TS 32.101 1 and 3GPP TS 32.102 2. IRPManagers (typically Network Management Systems) and IRP
24、Agents (typically EMs or NEs) synchronize their data concerning alarms or configuration data. In certain scenarios this synchronization is lost or not done. This IRP provides functionality to significantly reduce the amount of data which needs to be transferred in order to re-establish synchronizati
25、on. ETSI ETSI TS 132 391 V15.0.0 (2018-07)53GPP TS 32.391 version 15.0.0 Release 151 Scope The purpose of Delta Synchronization IRP is to define an interface through which an IRPManager can request only those data which changed (i.e. changed, were created or deleted) from a synchronization point onw
26、ards. The present document contains the Requirements of Delta Synchronization IRP. It defines, for the purpose of Delta Synchronization, the basic requirements to be fulfilled on Itf-N. 2 References The following documents contain provisions that, through reference in this text, constitute provision
27、s 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 applies. In the case of a reference
28、 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“. 2 3GPP TS 32.102: “Telecommunicatio
29、n management; Architecture“. 3 3GPP TS 32.302: “Telecommunication management; Configuration Management (CM); Notification Integration Reference Point (IRP); Information Service (IS)“. 4 3GPP TS 32.342: “Telecommunication management; File Transfer (FT); Integration Reference Point (IRP); Information
30、Service (IS)“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: changed instance / alarm: it refers to a managed object instance or an alarm that has changed during a period defined two time based references A manage
31、d object instance / alarm is considered changed if: a) It is present at the beginning of the period and absent at the end of the period; or b) It is absent at the beginning of the period and present at the end of the period; or c) At least one of its attribute / parameter values is different at the
32、beginning and at the end of the period. CM data: data which can be managed by CM (no matter if basic or bulk CM) delta synchronization: state of MIB is the totality of states of all managed object instances in that MIB State of MIB can be changed. AlarmList content can be changed. Delta synchronizat
33、ion refers to a process where the IRPManagers view of the MIB state or the AlarmList content at T1 (sometimes referred to as the beginning of the Delta Synchronization period) can be updated to that at T2 (sometimes referred to as the end of the Delta Synchronization period) by receiving and process
34、ing only those data involving changed instances. delta synchronization point: it refers to a point in time based on the clock used by the IRPAgent It relates to the T1 and T2 of the Delta Synchronization process. FM data: alarm data as it would be retrieved with operation getAlarmList ETSI ETSI TS 1
35、32 391 V15.0.0 (2018-07)63GPP TS 32.391 version 15.0.0 Release 15full synchronization: it is a specialized Delta Synchronization process in that at T1 (beginning of the Delta Synchronization period), there is no managed object instance or the AlarmList content is empty IRP: See 3GPP TS 32.101 1. IRP
36、Agent: See 3GPP TS 32.102 2. IRPManager: See 3GPP TS 32.102 2. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: CM Configuration Management EM Element Manager IRP Integration Reference Point IS Information Service (see 3GPP TS 32.101 1) Itf-N Interface N
37、 MIB Management Information Base NE Network Element 4 Requirements for Delta Synchronization between IRP Manager and IRP Agent 4.1 Concept Delta Synchronization allows an IRPManager to request information about changes which took place since a specific point in time (synchronization point) and appli
38、es both to the alarm list and configuration data. This gives the IRPManager an efficient way to align his picture with the picture the IRPAgent has. 4.1.1 Difference to full synchronization: “Full synchronization“, provided in TS 32.60n and 32.111-n series by operations such as getMOAttributes and g
39、etAlarmList, on the other hand delivers - in the requested scope (and filter, if applied) - the complete data at that point in time when the IRPAgent prepares the response to such an operation request. For all cases when only a few data have changed, a “full synchronization“ would deliver too many d
40、ata and the potentially huge amount of data would have to be checked where changes took place. Delta synchronization can be beneficial in these cases. This benefit would be destroyed, if in responses to delta synchronization request the IRPAgent would deliver the same data as in full synchronization
41、 responses. Therefore this is not allowed (except in the trivial cases where the changed data is identical to the existing data). 4.1.2 Difference to logging: A suitably administered log contains a history of the changes which took place, potentially also since the synchronization point. But many of
42、 these changes could refer to the same instances which e.g. changed several times or where changes were undone again. Delta synchronization tries to compress this information as far as possible to only one set of delta synchronization data per changed instance and not to report undone changes. There
43、fore it is not allowed to deliver the full change history since the synchronization point (except for those trivial cases when there were no “compressible“ changes). NOTE: Delta synchronization not necessarily has to be based on a log. For cases where changes take place which are not recorded in a l
44、og - e.g. because the changes do not result in a notification to be logged - using the log would fail to produce the correct delta synchronization data. 4.2 General requirements 4.2.1 Data which require delta synchronization: ETSI ETSI TS 132 391 V15.0.0 (2018-07)73GPP TS 32.391 version 15.0.0 Relea
45、se 154.2.1.2 CM data 4.2.1.2 FM data 4.2.2 Scenarios when delta synchronization can be required: 4.2.2.1 IRPManager recognizes that its data may not be up-to-date 4.2.2.2 Interruption and re-establishment of the Manager-Agent communication (especially useful for interruptions when not a very big amo
46、unt of data changed) 4.2.2.3 IRPAgent does not generate CM-related notifications (notifyObjectCreation / notifyObjectDeletion / notifiyAttributeValueChange) 4.2.2.4 IRPManager does not evaluate CM-related notifications (notifyObjectCreation / notifyObjectDeletion / notifiyAttributeValueChange) 4.2.2
47、.5 IRPManager regularly synchronizes its data 4.2.3 Time aspects 4.2.3.1 Time parameters in the context of the delta synchronization refer to the IRPAgents time. 4.3 Requirements for operations related to delta synchronization 4.3.1 The Itf-N shall allow an IRPManager to request delta synchronizatio
48、n data for the managed resources of the whole or optionally only a part of the network. 4.3.2 The Itf-N shall allow an IRPManager to specify in its request if it wants delta synchronization data starting from a synchronization point in time or from the last synchronization (i.e. the last time the IR
49、PAgent stored a section of the delta data). The IRPAgent may choose to only accept a request for delta data related to the IRPAgents own synchronizationPoints 4.3.3 The Itf-N should allow an IRPManager to request if it wants in delta synchronization responses - only the identification of the changed instances (concerning configuration or alarm status) or - the complete data (attributes/parameters) of the changed instances (including identification). This choice is not possible, if the delta data is delivered in files, not in the operation response. 4.3.4
