1、EN 301 129 1.1.2 (1999-05) European Standard (Telecommunications series) Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Synchronous Digital Hierarchy (SDH); System performance monitoring parameters of SDH DRRS 2 ETSI EN 301 129 V1.1.2 (1999-05) Reference DEN/TM-04037 (agcOOi
2、dc.PDF) Keywords SDH, DRRS, transmission, petformance ETSI Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06)
3、 No 7803/88 Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariatetsi.fr Individual copies of this ETSI deliverable can be downloaded from http:/www.etsi.org If you find errors in the present document, send your comment to: editoretsi.fr Cowriaht Notification No part may be reproduced
4、except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 1999. All rights reserved. ETSI 3 ETSI EN 301 129 V1.1.2 (1999-05) Contents Intellectual Property Rights 5 Foreword 5 1 Scope
5、 6 2 References 7 3 Symbols and abbreviations 8 Symbols . 8 3.1 3.2 Abbreviations . 8 4 Introduction 9 5 Functional architecture . 10 6 Radio specific maintenance parameters . 10 6.1 6.1.1 Performance primitives . . 10 6.1.1.1 Received Level (RL) . . 10 6.1.1.2 Transmitted Level (TL) . 6.1.2 Perform
6、ance events 6.1.2.1 Received Level . 12 6.1.2.2 . 12 6.1.2.3 6.1.2.4 6.1.3 6.1.4 Performance data threshold treatment . 13 6.2 6.2.1 Performance primitives 6.2.1.1 Protection Switch A . 14 6.2.1.2 . . 14 6.2.2 Performance events . 6.2.2.1 6.2.2.2 6.2.2.3 . 15 6.2.2.4 6.2.3 6.2.4 . 17 6.3 Radio OverH
7、ead Access (ROHA) perfo . 17 7 Radio specific transmission quality monitoring 17 Annex A (informative): point XT dependent on the allocation of RPS functional block 18 management and error performance management . 21 Examples of RSPI and RPS events and counters behaviours . 21 B.1.2 RPS performance
8、events . 23 equipment fault 25 Radio Synchronous Physical Interface (RSPI) performance management . Failed Switch Request Count (FSRC) Description of radio specific performance monitoring at reference Annex B (informative): Application of additional performance parameters for fault B.l B . 1.1 Recei
9、ved Level (RL) performance primitive, Received Level Tide Mark (RLTD) and Received Level Threshold Second (RLTS) performance events . 21 B.2 B.2.1 Rain induced fading event B.2.1.1 DRSS without ATPC . . 25 B.2.1.2 . 26 B.2.2 Example of usage of additional performance parameters in case of fading phe
10、nomena and Rain induced fading event: DRRS with the ATPC . Far end equipment failure at Tx side . ETSI B.2.3 B.2.3.1 B.2.3.2 B.2.3.3 B.2.4 B.2.5 B.2.5.1 B.2.5.2 4 ETSI EN 301 129 V1.1.2 (1999-05) Unexpected bad quality in a high frequency SDH DRRS . Interference . 28 Equipment degradation Fading eff
11、ects in a low freque . Unexpected bad quality i . 30 . B.3 B.3.1 B.3.1.1 Example of maintenance principles . 3 1 B.3.1.1.1 Fault detection and fault analysis . 32 B.3.1.1.2 Maintenance procedure based on error performance parameters 33 B.3.1.2.1 Fault detection and fault analysis . . Maintenance pro
12、cedure based on error performance parameters. . 35 B.3.2 DRRS with 1+1 protection switching 35 High frequency DRRS in configuration without protection switching . DRRS implemented as a Regenerator Section (RS) B.3.1.2 B.3.1.2.2 B.3.2.1 B.3.2.1.1 DRRS implemented as a Multiplex Section . DRRS impleme
13、nting protection type C Maintenance procedure based on error performance parameters, Annex C (informative): Performance monitoring functional architecture 38 C. 1 Performance primitive and event generation. 38 C.2 Data collection, history and threshold treatment architecture . 38 C.2.1 15 minute reg
14、ister . C.2.2 24 hour register . C.2.3 Threshold crossing notification . 40 C.2.4 History register 40 History . .4 1 ETSI 5 ETSI EN 301 129 V1.1.2 (1999-05) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pe
15、rtaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in SR O00 3 14: “Intellectual Property Rights (IPRs); Essential, orpotentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available free of charge from the
16、 ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/www.etsi.fr/ipr or http:/www.etsi.org/ipr). 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 reference
17、d in SR O00 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). The present document describes
18、 the performance monitoring functional architecture and requirements which are specific to the Digital Radio Relay System (DRRS) Network Elements (NE) that use the Synchronous Digital Hierarchy (SDH) multiplexing structure. The present Version 1.1.2 has been published in order to correct a mistake w
19、ithin table 1. “R*“ was omitted in the last column, last row of table 1. National transposition dates Date of adoption of this EN: Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (dople): Date of withdrawal of any conflictin
20、g National Standard (dow): 18 September 1998 3 1 December 1998 30 June 1999 30 June 1999 ETSI 6 ETSI EN 301 129 V1.1.2 (1999-05) 1 Scope The present document defines the additional specific performance monitoring functional architecture and requirements to be used for management of Digital Radio Rel
21、ay Systems (DRRS) which use the Synchronous Digital Hierarchy (SDH). Considering that: - ETS 300 635 4 and ITU-R Recommendation F.750 3 define the SDH radio specific functional blocks for transmission at STM-n data rate; - ETS 300 785 5 and ITU-R Recommendation F.750 3 define the SDH radio specific
22、functional blocks for transmission at Synchronous Transport Module O (STM-O) data rate; EN 301 167 6, ETS 300 417 7, ITU-T Recommendations G.783 i and G.784 2 defie the performance monitoring architecture and requirements for generic functional blocks used on SDH DRRS and other SDH equipment; ITU-T
23、Recommendation M.30 10 SI defies the standardized logical and functional Telecommunication Management Network (TMN) architecture. - - The present document defies: - the specific performance primitives and events to be used for performance management of radio specific functional blocks; - - the gener
24、al requirements for history treatment associated to each performance event; the general requirements for thresholding treatment associated to each performance event; - the specific transmission quality information which is required for maintenance purpose. The present document does not define: - - -
25、 - the F interface performance monitoring; the performance monitoring related to non radio specific functional blocks; the information model to be used on Q interface which is on the study in TC TMN, (ES 201 652 181). the protocol stack to be used for the message communication function; - any radio
26、specific additional performance parameter to be used at network level management. The present document applies on each SDH DRRS independently of the transmission data rate supplied (STM-n or STM-O). The parameters defied in the present document are only intended to be used for radio equipment mainte
27、nance. The present document should provide guidance and supporting information for the definition of object-oriented models within SDH DRRS. It is not required for that equipment developed prior to the present document to be fully compliant with the present document. ETSI 7 ETSI EN 301 129 V1.1.2 (1
28、999-05) 2 Re fe ren ces References may be made to: a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in which case, subsequent revisions to the referenced document do not apply; or b) all versions up to and including the identified versio
29、n (identified by “up to and including“ before the version identity); or c) all versions subsequent to and including the identified version (identified by “onwards“ following the version identity); or d) publications without mention of a specific version, in which case the latest version applies. A n
30、on-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. il ITU-T Recommendation G.783 (1 994): “Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks“. ITU-T Recommendation G.784 (1994): “Synchronous digital
31、 hierarchy (SDH) management“. 21 31 ITU-R Recommendation F.750: “Architectural and functional aspects of radio-relay systems for SDH-based networks“. 41 ETS 300 635: “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH Radio specific functional blocks for transmission of M x
32、 STM-N“. 51 ETS 300 785: “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH Radio specific functional blocks for transmission of M x sub-STM-1“. EN 301 167: “Transmission and Multiplexing (TM); Management of Synchronous Digital Hierarchy (SDH) transmission equipment; Fault
33、 management and performance monitoring; Functional description“. 61 71 ETS 300 417: “Transmission and Multiplexing (TM); Generic functional requirements for Synchronous Digital Hierarchy (SDH) equipment“. ITU-T Recommendation M.3010: “Principles for a Telecommunications management network“. ITU-T Re
34、commendation G. 826: “Error performance parameters and objectives for international constant bit rate digital paths at or above the primary rate“. ITU-T Recommendation G.EPMRS: “Error Performance Events for SDH Multiplex Sections“. ETS 300 41 1 : “Performance monitoring information model for the Net
35、work Element (NE) view“. ITU-T Recommendation G.774.0 1 : “Synchronous Digital Hierarchy (SDH) performance monitoring for the network element view“. ITU-T Recommendation G.707 (1 996): “Network node interface for the synchronous digital hierarchy (SDH)“. SI 91 lo1 111 121 i31 i41 Void. i51 TR 101 03
36、5: “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH) aspects regarding Digital Radio Relay Systems (DRRS)“. ITU-T Recommendation M.20: “Maintenance philosophy for telecommunications networks“. ITU-T Recommendation G.861: “Principles and guidelines for the integration of satell
37、ite and radio systems in SDH transport networks“. 161 i71 ETSI 8 ETSI EN 301 129 V1.1.2 (1999-05) ES 20 1 652: “Telecommunications Management Network (TMN); Radio specific performance monitoring information model for Synchronous Digital Hierarchy (SDH) radio relay network element“. 3 Symbols and abb
38、reviations 3.1 Symbols For the purposes of the present document, the following symbols apply: dB decibel dBm decibel relative to 1 milliwatt 3.2 Ab brevi at ions For the purposes of the present document, the following abbreviations apply: ATPC BBE DRRS ES EW FEC FSRD FSRC HBER HO IF LBER LOS MCF MS
39、MSA MST NE os POH PM PSA PSAC PSAD PSR RF RL RLTD RLTM RLTS ROHA RPS RRR RRT RS RSOH RSPI RST SDH SES SEMF Automatic Transmit Power Control Background Block Error Digital Radio Relay System Errored Second Early Warning Forward Error Correction Failed Switch Request Duration Failed Switch Request Cou
40、nt High Bit Error Rate High Order Intermediate Frequency Low Bit Error Rate Loss of Signal Message Communication Function Multiplex Section Multiplex Section Adaptation Multiplex Section Termination Network Element Operating System Path OverHead Performance Monitoring Protection Switch Actual Protec
41、tion Switch Actual Count Protection Switch Actual Duration Protection Switch Request Radio Frequency Received Level Received Level Tide Mark Received Level Tide Mark Received Level Threshold Second Radio OverHead Access Radio Protection Switching Radio Relay Regenerator Radio Relay Terminal Regenera
42、tor Section Regenerator Section OverHead Radio Synchronous Physical Interface Regenerator Section Termination Synchronous Digital Hierarchy Severely Erorred Second Synchronous Element Management Function ETSI 9 ETSI EN 301 129 V1.1.2 (1999-05) SF STM-n Sub-STM-1 TL TLTD TLTM TLTS TMN UAS UAT VC-n Si
43、gnal Fail Synchronous Transport Module n Sub-Synchronous Transport Module 1 (also defined as STM-O in ITU-T Recommendation G.861 17) Transmitted Level Transmitted Level Tide Mark Transmitted Level Tide Mark Transmitted Level Threshold Second Telecommunication Management Network UnAvailable Second Un
44、Available Time Virtual Containern 4 I nt rod uct ion The SDH multiplexing frame structure allows in-service quality transmission monitoring at different levels such as regenerator and multiplex sections and lowhigh order paths. SDH Performance Monitoring (PM) is described starting from the definitio
45、n of the performance primitives, events and parameters and defiing the PM data collection and history treatment together with the way to present PM information to a managing system at a Q3 interface. The whole matter is covered by several ITU-T Recommendations and ETSI standards e.g. ITU-T Recommend
46、ations G.783 i, G.784 2, G.826 9, G.EPMRS lo, andG.774.01 12; EN 301 167 6, ETS 300 411 li and ETS 300 417 7. SDH radio Network Elements (NE) may terminate, depending on applications, regenerator and multiplex sections and also higWlow order paths. For each one of the above SDH layers implemented in
47、side a SDH radio NE, the associated standardized PM shall be implemented. Signal transmission on microwave radios may be affected by mid-air propagation phenomena that may result in transmission quality degradation. In order to counteract such typical radio feature several counter measures are or ma
48、y be implemented inside radio transmission equipment. The close relationship between transmission quality and radio link propagation cannot be well understood if the PM is limited only to quality of service. In particular it is not possible, for a given measured quality, to discriminate among errors
49、 due to equipment degradations, countermeasure unefficiency and unusual or unpredicted bad propagation. From such a reason the present document covers the need to have radio specific performance parameters to be used in close conjunction with the ordinary ones related to quality transmission: Severely Errored Second (SES), Errored Second (ES), Background Block Error (BBE) and UnAvailable Second (UAS). Radio specific PM defies new radio specific performance primitives, events and parameters with associated requirements for da
