1、 ETSI TR 103 820 V1.1.1 (2015-11) Fixed Radio Systems; Energy efficiency metrics and test procedures for Point-to-point fixed radio systems TECHNICAL REPORT ETSI ETSI TR 103 820 V1.1.1 (2015-11) 2 Reference DTR/ATTM-04021 Keywords energy efficiency, point-to-point, radio ETSI 650 Route des Lucioles
2、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 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-s
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7、 foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. 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
8、 the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 103 820 V1.1.1 (2015-11) 3 Contents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g3Introduction 5g31 Scope 7g3
9、2 References 7g32.1 Normative references . 7g32.2 Informative references 7g33 Symbols and abbreviations . 8g33.1 Symbols 8g33.2 Abbreviations . 8g34 Definition of the EE metrics of Point-to-point fixed radio systems . 9g34.1 General . 9g34.2 Parameters affecting the EE of Point-to-point fixed radio
10、systems 9g34.3 Equipment Energy Efficiency Ratio . 10g34.3.1 Definition of EEER . 10g34.3.2 EEER applicability . 11g35 EEER evaluation 12g35.1 EEER at different frequency ranges . 12g35.2 EEER for frequencies up to 13 GHz 12g35.2.1 Introduction. 12g35.2.2 Reference factors 13g35.2.2.1 Reference syst
11、em 13g35.2.2.2 Reference parameters 13g35.2.3 Reference case 13g35.2.3.1 Reference system 13g35.2.3.2 Reference parameters 14g35.2.4 SG, Signature and HLM. 15g35.2.4.1 Methodology . 15g35.2.4.2 Reference tables for (SG + Signature) barb2leftbarb2right HLM conversion . 16g35.2.4.3 Example of EEER cal
12、culation for 6 GHz 19g35.3 EEER for 15 GHz frequency range and above . 20g35.3.1 Introduction. 20g35.3.2 Reference factors 20g35.3.2.1 Reference system 20g35.3.2.2 Reference parameters 20g35.3.2.3 Reference case . 21g35.3.2.3.1 Reference system . 21g35.3.2.3.2 Reference parameters 21g35.3.3 Referenc
13、e table for SG barb2leftbarb2right HLM conversion 22g36 Test conditions . 23g36.1 Introduction 23g36.2 Capacity 23g36.3 Power Consumption . 23g36.4 Measurements . 24g36.4.1 Measurements conditions . 24g36.4.2 Not considered equipment 24g37 Conclusions 24g3Annex A: Relationship between HLMand SG for
14、frequencies above 15 GHz 26g3Annex B: EEER examples . 28g3ETSI ETSI TR 103 820 V1.1.1 (2015-11) 4 B.1 Practical equipment 28g3B.1.1 Calculations and frequency bands 28g3B.1.2 Input parameters . 28g3B.2 Numerical results 28g3B.3 Analysis and comments 29g3B.3.1 PinW versus dBW . 29g3B.3.2 EEER variati
15、on with RX threshold 30g3B.3.3 EEER absolute values versus rain-rate . 31g3B.4 Conclusions 31g3Annex C: Comparison between Vigants-Barnett and Recommendation ITU-R P.530-15 methods 33g3C.1 4 GHz case . 33g3C.2 11 GHz case . 34g3Annex D: Bibliography 35g3History 36g3ETSI ETSI TR 103 820 V1.1.1 (2015-
16、11) 5 Intellectual 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 available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Pr
17、operty 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 server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR sea
18、rches, 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 become, essential to the present document. Foreword This Technical Report (TR) has been produced by
19、ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). 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 described in clause 3.2 of the ETSI Draft
20、ing Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. Introduction The present document deals with the definition of the metrics, methodology and test conditions for the evaluation of the Energy Effi
21、ciency of Point-to-point fixed radio systems. The tremendous growing of telecom applications is leading to a strong escalation in bandwidth needed to expand telecom solutions. Improved telecommunication networks are under deployment, and consequently the power needed to operate and cool the connecte
22、d equipment is also likely to increase. As a consequence, the concept of “Energy Efficiency“ is getting more and more important in the telecommunication world. Numerous definitions are in use according to the different technologies and network segments they are applied to. Most of the standardizatio
23、n organizations have identified “Energy Efficiency“ as a key area, looking at it from different perspectives as the standards can help providing a common base of understandings, concepts and targets. The initial stimulus for the present document comes from the European Mandate M/462 i.1 on the “effi
24、cient energy use in fixed and mobile information and communication networks“, which among other things states that “it is vital to consider ways to maintain sustainable growth in the transmission capacity of telecommunication networks while limiting and optimizing the energy consumption“. However, i
25、n line with the European Code of Conduct on Energy Consumption i.2, it is as much important that the intention of reducing the energy consumption is pursued without hampering the technological developments and the services provided. Although in the European Mandate M/462 i.1 and most of the relevant
26、 technical documents, Fixed Radio access and transport infrastructures are still mostly disregarded or just mentioned without any specific treatment, the present document aims at giving a correct technical interpretation of the concept of Energy Efficiency when applied to Point-to-point fixed radio
27、systems. It is important to consider that unlike wired networks, the performance characteristics of a microwave radio system is prone to variations, either due to external factors (e.g. weather) or by the action of the network operator. In a given frequency band, there may be requirements for maximu
28、m radiated power levels, particular efficient modulation types, and even standards for the radiation patterns of directional antennas. These criteria are established to reduce or minimize interference among systems that share the same spectrum, and to ensure that the spectral efficiency is sufficien
29、tly high to justify the occupancy of the spectrum. ETSI ETSI TR 103 820 V1.1.1 (2015-11) 6 Moreover, propagation characteristics of the microwave signal can differ significantly according to the operating conditions, like frequency band and geographical location. All the different operating conditio
30、ns summarily mentioned here above have led to the development of many types of equipment that can address different applications and can work in a large variety of set-up. It follows that any definition of the Energy Efficiency for Point-to-point fixed radio systems should not be considered without
31、taking into account the specific characteristics of those systems collected in the present document. The present document is thus intended also to provide the necessary technical background in the event that in the future any of the Technical Committees in charge wanted to define any Energy Efficien
32、cy KPIs related to P-t-p wireless fixed radio systems. ETSI ETSI TR 103 820 V1.1.1 (2015-11) 7 1 Scope The present document defines the Energy Efficiency specifically for Point-to-point fixed radio systems, taking into account the specific characteristics of that technology. The technical background
33、 and the methodology used to obtain the formula are described together with the test conditions within which carrying out the related measures. Due to the peculiarity of fixed wireless systems, having various architectures, applications and set-ups, the target to define the Energy Efficiency with a
34、single formula valid for all the categories of systems is very challenging and could be even technically misleading. As consequence, the main part of the present document is intended to explain the methodology used to derive the EEER, defined as the Equipment Energy Efficiency Ratio. The provided te
35、chnical description is the necessary complement of the given definition, as it helps to understand the complexity of the matter and how the formula should be used. That is particularly important in the event that Technical Committees intend to further proceed with the present analysis and derive fro
36、m the given definition any practical standardization activities. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific
37、 references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at
38、 the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references References are either specific (identified by date of publication and/or edition number o
39、r version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI can
40、not guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 European Commission - M/462 EN: “Standardisation mandate addressed to CEN, CENELEC and ETSI
41、in the field of ICT to enable efficient energy use in fixed and mobile information and communication networks“. i.2 European Commission, Veer 4, Feb 2011: “Code of Conduct on Energy Consumption of Broadband Equipment“. i.3 Recommendation ITU-R F.1703 (2005): “Availability objectives for real digital
42、 fixed wireless links used in 27 500 km hypothetical reference paths and connections“. i.4 ETSI EN 302 217-1 (V1.3.1): “Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part 1: Overview and system-independent common characteristics“. ETSI ETSI TR 103 8
43、20 V1.1.1 (2015-11) 8 i.5 ETSI EN 302 217-2-2 (V2.2.1): “Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part 2-2: Digital systems operating in frequency bands where frequency co-ordination is applied; Harmonized EN covering the essential requirements
44、 of article 3.2 of the R Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)“. 3 Symbols and abbreviations 3.1 Symbols For the purposes of the present document, the following symbols apply: Kn normalized system signatur
45、e parameter p0 multipath occurrence factor Pininput power (power consumption) PTx output transmitted (radio) power 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AC Alternating Current AM Adaptive Modulation C Capacity CS Channel Spacing DC Direct Curr
46、entdN1 point refractivity gradient EE Energy EfficiencyEEER Equipment Energy Efficiency Ratio fBAND Frequency Band FS Fixed ServiceHL Hop Length ETSI ETSI TR 103 820 V1.1.1 (2015-11) 9 HLMMaximum Hop Length IDU InDoor Unit L2 Layer 2MW MicroWave ODU Outdoor Unit QAM Quadrature Amplitude Modulation R
47、F Radio Frequency RIC Radio Interface Capacity RTh Receiver Threshold SES Severely Errored Second SG System Gain 4 Definition of the EE metrics of Point-to-point fixed radio systems 4.1 General In general, the energy efficiency of a system should reflect its ability in exploiting the external resour
48、ces (energy) needed for its operation in order to reach a certain defined level of quality in terms of performance. The list here below summarizes the different factors that heavily influence the performance of a wireless Fixed Service system: Type of application: FS systems can be used in different
49、 network segments like access, short haul or long haul. Systems located in different portions of the network are required to provide different features and to work for different link lengths, capacity and quality of service, with consequent impact on their settings and power consumption. Frequency bands: FS applications expand from “low“ frequencies at around 2 GHz up to 95 GHz or more, though the typical use can be restricted from 6 GHz to 42 GHz. It is well known that in such a wide spectrum range the propagation characteristics are rather different
