1、 ETSI TS 128 627 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP); Requirements (3GPP TS 28.627 version 14.0.0 Release 14) TECHNICAL SPECIFICATI
2、ON ETSI ETSI TS 128 627 V14.0.0 (2017-04)13GPP TS 28.627 version 14.0.0 Release 14Reference RTS/TSGS-0528627ve00 Keywords 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
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9、he GSM Association. ETSI ETSI TS 128 627 V14.0.0 (2017-04)23GPP TS 28.627 version 14.0.0 Release 14Intellectual 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 avai
10、lable 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. Latest updates are available on the ETSI Web serv
11、er (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 000 314 (or the updates on the ETSI Web server) which are, or may be, or may becom
12、e, 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 using their 3GPP identities, UMTS identities or GSM identities. These should be
13、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 the present document “shall“, “shall not“, “should“, “should not“, “may“, “ne
14、ed 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 deliverables except when used in direct citation. ETSI ETSI TS 128 627 V14.0.0 (2
15、017-04)33GPP TS 28.627 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Concepts and background 7g34.1 O
16、verview 7g34.2 Self-Optimization Concept . 9g34.2.1 Logical Function Blocks . 9g34.2.1.1 Self-Optimization Input Monitoring Function (SO_MON_F) 9 g34.2.1.2 Triggering Optimization Function (TG_F) . 9g34.2.1.3 Optimization Fallback Function (O_FB_F) 9g34.2.1.4 Self-Optimization Progress Update Functi
17、on (SO_PGS_UF) . 9g34.2.1.5 NRM IRP Update Function (NRM_UF) . 9g34.2.1.6 Self-Optimization Monitoring and Management Function (SO_MMF) . 9g34.2.1.6.1 Self-Optimization Monitoring and Management Function (SO_MMF_NM) . 9g34.2.1.6.2 Self-Optimization Monitoring and Management Function (SO_MMF_EM) 9g34
18、.2.1.7 Load Balancing Function (LB_F) . 10g34.2.1.8 Interference Control Function (IC_F) . 10g34.2.1.9 Coverage and Capacity Function (CC_F) . 10g34.2.1.10 RACH Optimization Function (RACH_F) 10g34.2.1.11 HandOver Optimization Function (HO_F) . 10g34.2.1.12 NM centralized Coverage and Capacity Funct
19、ion (CC_F_NM) . 10g34.3 SON Coordination Concepts 10g35 Business level requirements . 10g35.1 Requirements 11g35.1.1 Self-Optimization Monitoring and Management 11g35.1.2 Load Balancing . 11g35.1.3 Handover (HO) Parameter optimization . 12g35.1.4 Interference control . 12g35.1.5 Coverage and Capacit
20、y optimization 12g35.1.6 RACH optimization 12g35.1.7 SON Coordination 12g35.2 Actor roles 13g35.3 Telecommunications Resources . 13g35.4 High-Level use case . 13g35.4.1 Load Balancing . 13g35.4.2 Interference control . 15g35.4.3 Coverage and capacity optimization . 16g35.4.4 NM centralized Coverage
21、and Capacity Optimization . 18g35.4.4.0 General 18g35.4.4.1 Use case 1: Cell coverage adapting to traffic demand. 18g35.4.4.2 Use case 2: Coverage and accessibility . 18g35.4.4.3 Use case 3: LTE coverage holes with underlaid UTRAN/GERAN 18g35.4.4.4 Use case 4: LTE Connection failure . 19g35.4.4.5 Us
22、e case 5: Radio link quality . 21g36 Specification level requirements 21g3ETSI ETSI TS 128 627 V14.0.0 (2017-04)43GPP TS 28.627 version 14.0.0 Release 146.1 Requirements 21g36.1.1 Self-Optimization Monitoring and Management 21g36.1.1.1 Management Part 21g36.1.2 Load Balancing . 22g36.1.3 Handover (H
23、O) Parameter optimization . 22g36.1.3.1 HO failure categorization 22g36.1.3.1.1 HO failures due to too late and too early HO triggering 22g36.1.3.2 Reducing inefficient use of network resources due to unnecessary HOs 23g36.1.3.3 Requirements 24g36.1.4 Interference control 24g36.1.5 Coverage and capa
24、city optimization . 24g36.1.6 RACH optimization 25g36.1.7 SON Coordination 25g36.1.8 NM centralized coverage and capacity optimization 25g36.2 Actor roles 25g36.3 Telecommunications Resources . 25g36.4 Use case 26g36.4.1 Use case Self-Optimization Monitoring and Management . 26g36.4.2 Use case Load
25、Balancing Allowed/Prohibited Management 26g36.4.3 Use case NM centralized Coverage and Capacity Optimization 28g37 Functions and Architecture 29g37.1 Self-Optimization Logical Architecture . 29g37.2 Self-Optimization Reference Model . 29g3Annex A (informative): Steps for SON self-optimization Techni
26、cal Specifications . 30g3Annex B (informative): General descriptions related to NM centralized CCO high level use cases . 31g3B.1 General . 31g3B.2 Monitoring of UE distribution 32g3Annex C (informative): Change history . 34g3History 35g3ETSI ETSI TS 128 627 V14.0.0 (2017-04)53GPP TS 28.627 version
27、14.0.0 Release 14Foreword This Technical Specification 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
28、 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 document under change
29、 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. Introduction The present document is part of a TS-family covering the
30、 3rdGeneration Partnership Project Technical Specification Group Services and System Aspects, Telecommunication management; as identified below: 28.627: “Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP): Requirements” 28.628: “Self-Organizing Netwo
31、rks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP): Information Service (IS)” 28.629: “Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP): Solution Set (SS) definitions” ETSI ETSI TS 128 627 V14.0.0 (2017-04)63GPP TS 28.6
32、27 version 14.0.0 Release 141 Scope The present document describes concept and requirements of SON Policy management for Self-Optimization and SON coordination. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present documen
33、t. - 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 to a 3GPP document (inc
34、luding 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: “Telecommunication management; Architectu
35、re“. 3 3GPP TS 32.150: “Telecommunication management; Integration Reference Point (IRP) Concept and definitions“. 4 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 5 3GPP TS 32.600: “Telecommunication management; Configuration Management (CM); Concept and high-level requirements“. 6 3GPP TS 28
36、.620: “Telecommunication management; Fixed Mobile Convergence (FMC) Federated Network Information Model (FNIM) Umbrella Information Model (UIM)“. 7 3GPP TS 37.320: “Universal Terrestrial Radio Access (UTRA) and Evolved Universal Terrestrial Radio Access (E-UTRA); Radio measurement collection for Min
37、imization of Drive Tests (MDT); Overall description; Stage 2“. 8 3GPP TS 36.133: “Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of radio resource management“. 9 3GPP TS 36.213: “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures“. 10 3GPP T
38、S 36.321: “Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification“. 11 3GPP TS 36.214: “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present
39、 document, the terms and definitions given in 3GPP TS 32.101 1, 3GPP TS 32.102 2, 3GPP TS 32.150 3 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TS 32.101 1, TS 32.102 2, TS 32.150 3 and TR 21.905 4, in that order. E
40、TSI ETSI TS 128 627 V14.0.0 (2017-04)73GPP TS 28.627 version 14.0.0 Release 14Target: Target provides a clear basis for assessing performance of self-optimization functions. Targets need to be carefully specified in terms of a series of performance measurements and/or KPIs, which can be specific, an
41、d which can be used also to identify problems. A target should be expressed in terms of a specific value or specific value range. The present document does not specify the specific value or desired value range of each target since those should be set by operators according to their policy and differ
42、ent network situation. Trigger condition: The condition at which self-optimization should be triggered. Different self-optimization algorithms may have different trigger conditions for achieving same objectives and targets. 3.2 Abbreviations For the purposes of the present document, the following ab
43、breviations apply: CCO Coverage and Capacity Optimization CQI Channel Quality Indicator EM Element Manager eNodeB evolved NodeB EPC Evolved Packet Core E-UTRA Evolved Universal Terrestrial Radio Access E-UTRAN Evolved Universal Terrestrial Radio Access Network HO Handover ICIC Inter Cell Interferenc
44、e Coordination LB Load Balancing LTE Long Term Evolution NE Network Element NM Network ManagerNRM Network Resource Model OAM Operation Administration Maintenance PRB Physical Resource Block RCEF RRC Connection Establishment Failure RLF Radio Link Failure RSRP Reference Signal Received Power RSRQ Ref
45、erence Signal Received Quality SON Self Organizing Networks UE User Equipment 4 Concepts and background 4.1 Overview A self-optimization functionality will monitor input data such as performance measurements, fault alarms, notifications etc. After analyzing the input data, optimization decisions wil
46、l be made according to the optimization algorithms. Finally, corrective actions on the affected network node(s) will be triggered automatically or manually when necessary. IRPManager should be able to control the self-optimization procedures according to the operators objectives and targets. The fol
47、lowing diagram is illustrated how the self-optimization functionality works: ETSI ETSI TS 128 627 V14.0.0 (2017-04)83GPP TS 28.627 version 14.0.0 Release 14Figure 4-1 Logical view of self-optimization procedure The self-optimization functionality working procedure could be interpreted logically as f
48、ollowing: 1. The self-optimization functionality keeps monitoring input data according to the operators objectives and targets. 2. Whenever the objectives and targets are not met, optimization algorithms will be triggered. 3. Corrective actions are provided and executed. 4. Then the self-optimizatio
49、n functionality evaluates the result of the executed corrective actions. Loop: Keep Monitoring Is system status better after the corrective actions Analyse input data with Optimization Algorithms Execute corrective actions Monitor input data One time Self-optimization procedure ends Fallback may be needed to reverse the system to the previous status, which is before the corrective actions executed. Yes No Meet the targets? Yes No ETSI ETSI TS 128 627 V14.0.0 (2017-04)93GPP TS 28.627 version 14.0.0 Release 14a) If the system status is no
