1、 IEC 62657-2 Edition 2.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Wireless communication networks Part 2: Coexistence management Rseaux de communication industriels Rseaux de communication sans fil Partie 2: Gestion de coexistence IEC 62657-2:2017-05(en-f
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19、donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62657-2 Edition 2.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial communication networks Wireless communication networks Part 2: Coexistence management Rseaux de communication
20、industriels Rseaux de communication sans fil Partie 2: Gestion de coexistence INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 25.040.40; 33.040; 35.100 ISBN 978-2-8322-4214-8 Registered trademark of the International Electrotechnical Commission Marque dpose d
21、e la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 62657-2:2017 IEC 2017 CONTENTS FOREWORD . 6 INTRO
22、DUCTION . 8 1 Scope 10 2 Normative references 10 3 Terms, definitions, abbreviated terms and conventions 10 3.1 Terms and definitions 10 3.2 Abbreviated terms . 21 3.3 Conventions 22 4 Coexistence concept in industrial automation 22 4.1 Overview. 22 4.2 Objective 24 4.3 Necessity to implement a coex
23、istence management 26 4.4 Interference potential 28 4.5 Ancillary conditions . 29 4.6 Requirements to wireless devices for support of coexistence management . 30 4.7 Concepts 30 4.7.1 Manual coexistence management 30 4.7.2 Automated non-collaborative metrics-based coexistence management 31 4.7.3 Aut
24、omated collaborative metrics-based coexistence management . 31 4.8 Best practices to achieve coexistence . 32 4.9 Coexistence conceptual model 34 4.10 Coexistence management and selection of a wireless solution 36 4.11 Coexistence management system . 38 5 Coexistence management parameters . 38 5.1 G
25、eneral . 38 5.1.1 Definition and usage of parameters . 38 5.1.2 Physical link 38 5.2 Adjacent channel selectivity 38 5.3 Antenna gain 39 5.4 Antenna radiation pattern 39 5.5 Antenna type 39 5.6 Availability 39 5.7 Bandwidth . 40 5.8 Bit rate of physical link 40 5.9 Centre frequency 40 5.10 Character
26、istic of the area of operation 40 5.11 Communication load . 40 5.12 Cut-off frequency 42 5.13 Data throughput 43 5.14 Device type information 43 5.15 Distance between wireless devices . 43 5.16 Duty cycle . 44 5.17 Dwell time . 46 5.18 Equivalent isotropic radiated power. 47 5.19 Equivalent radiated
27、 power . 47 5.20 Frequency band 47 IEC 62657-2:2017 IEC 2017 3 5.21 Frequency channel . 47 5.22 Frequency hopping procedure . 48 5.23 Future expansion plan 48 5.24 Geographical dimension of the plant . 48 5.25 Infrastructure device . 48 5.26 Initiation of data transmission . 48 5.27 ISM application
28、. 49 5.28 Length of user data per transfer interval 49 5.29 Limitation from neighbours of the plant . 49 5.30 Maximum number of retransmissions 49 5.31 Mechanism for adaptivity 49 5.32 Medium access control mechanism . 50 5.33 Modulation 50 5.34 Natural environmental condition 50 5.35 Network topolo
29、gy 50 5.36 Packet loss rate 51 5.37 Position of wireless devices 51 5.38 Power spectral density 51 5.39 Purpose of the automation application 52 5.40 Receiver blocking . 52 5.41 Receiver input level 52 5.42 Receiver sensitivity . 53 5.43 Regional radio regulations 53 5.44 Relative movement . 53 5.45
30、 Response time 53 5.46 Security level 54 5.47 Spatial coverage of the wireless communication network 54 5.48 Spurious response 54 5.49 Total radiated power . 54 5.50 Transfer interval 54 5.51 Transmission gap 55 5.52 Transmission time . 56 5.53 Transmitter output power 59 5.54 Transmitter sequence .
31、 59 5.55 Transmitter spectral mask . 60 5.56 Update time 60 5.57 Wireless device density 61 5.58 Wireless communication network density 61 5.59 Wireless technology or standard . 62 6 Coexistence management information structures . 62 6.1 General . 62 6.2 General plant characteristic 63 6.3 Applicati
32、on communication requirements 64 6.3.1 Overview . 64 6.3.2 Requirements influencing the characteristic of wireless solutions 65 6.3.3 Performance requirements . 66 6.4 Characteristic of wireless system type and wireless device type . 66 6.4.1 Overview . 66 6.4.2 Wireless system type . 67 4 IEC 62657
33、-2:2017 IEC 2017 6.4.3 Wireless device type 67 6.5 Characteristic of wireless solution . 70 6.5.1 Overview . 70 6.5.2 Characteristic of a wireless network solution 70 6.5.3 Characteristic of a wireless device solution 71 7 Coexistence management process 72 7.1 General . 72 7.1.1 Overview . 72 7.1.2
34、Documentation 72 7.1.3 Suitable documentation method . 75 7.1.4 Application of tools 76 7.2 Establishment of a coexistence management system 76 7.2.1 Nomination of a coexistence manager . 76 7.2.2 Responsibility of a coexistence manager . 77 7.2.3 Support by radio experts 77 7.2.4 Training . 77 7.3
35、Maintaining coexistence management system . 78 7.4 Phases of a coexistence management process . 78 7.4.1 Investigation phase 78 7.4.2 Planning phase 81 7.4.3 Implementation phase 83 7.4.4 Operation phase 84 8 Coexistence parameter templates 86 Bibliography 90 Figure 1 Issues of consideration 25 Figu
36、re 2 Applications using frequency spectrum 26 Figure 3 Progression of expense to achieve coexistence corresponding to the application classes . 30 Figure 4 Separation of wireless systems according to frequency and time 33 Figure 5 Coexistence conceptual model . 35 Figure 6 Flow chart of the coexiste
37、nce conceptual model . 36 Figure 7 Selection of a wireless system in the coexistence management process 37 Figure 8 Communication load in case of two wireless devices 41 Figure 9 Communication load in the case of several wireless devices 42 Figure 10 Cut-off frequencies derived from maximum power le
38、vel 43 Figure 11 Distance of the wireless devices 44 Figure 12 Duty cycle 45 Figure 13 Maximum dwell time . 46 Figure 14 Power spectral density of an IEEE 802.15.4 system . 52 Figure 15 Communication cycle, application event interval and machine cycle . 55 Figure 16 Minimum transmission gap . 56 Fig
39、ure 17 Example of the density functions of transmission time 57 Figure 18 Example of the distribution functions of transmission time 58 Figure 19 Transmitter sequence . 59 Figure 20 Transmitter spectral mask of an IEEE 802.15.4 system 60 IEC 62657-2:2017 IEC 2017 5 Figure 21 Example of distribution
40、functions of the update time . 61 Figure 22 Principle for use of coexistence parameters . 63 Figure 23 Parameters to describe the general plant characteristic . 63 Figure 24 Parameters to describe application communication requirements 65 Figure 25 Parameters to describe wireless network type and de
41、vice type 66 Figure 26 Power spectral density and transmitter spectral mask of a DECT system . 68 Figure 27 Medium utilization in time and frequency of a DECT system . 68 Figure 28 Parameters to describe a wireless solution . 70 Figure 29 Relations of the documents in a coexistence management system
42、 specification 75 Figure 30 Planning of a wireless system in the coexistence management process . 82 Figure 31 Implementation and operation of a wireless system in the coexistence management process 85 Table 1 Example of a classification of application communication requirements . 24 Table 2 Applica
43、tion profile dependent observation time values . 45 Table 3 Parameter options for frequency channel 48 Table 4 List of parameters used to describe the general plant characteristic 64 Table 5 List of parameters used to describe the requirements influencing the characteristic of wireless solutions 65
44、Table 6 List of parameters used to describe performance requirements . 66 Table 7 List of parameters used to describe the wireless system type 67 Table 8 List of parameters used to describe the transmitter of a wireless device type 69 Table 9 List of parameters used to describe the receiver of a wir
45、eless device type 69 Table 10 List of parameters used to describe a wireless network solution 70 Table 11 List of parameters used to describe the transmitter of a wireless device solution . 71 Table 12 List of parameters used to describe the receiver of a wireless device solution . 72 Table 13 Templ
46、ate used to describe the general plant characteristic 86 Table 14 Template used to describe the application communication requirements . 87 Table 15 Template used to describe the wireless system type . 87 Table 16 Template used to describe a wireless device type . 88 Table 17 Template used to descri
47、be the wireless network solution . 88 Table 18 Template used to describe a wireless device solution 89 Table 19 Template used to describe an ISM application . 89 6 IEC 62657-2:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL COMMUNICATION NETWORKS WIRELESS COMMUNICATION NETWORKS
48、Part 2: Coexistence management FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions co
49、ncerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical co
