1、 ETSI TR 102 616 V1.1.1 (2008-03)Technical Report PowerLine Telecommunications (PLT);Report from Plugtests 2007 oncoexistence between PLT andshort wave radio broadcast;Test cases and resultsETSI ETSI TR 102 616 V1.1.1 (2008-03) 2 Reference DTR/PLT-00024 Keywords EMC, powerline, radio ETSI 650 Route
2、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 non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded fr
3、om: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall b
4、e the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available
5、 at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyr
6、ight and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a T
7、rade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 4 1 Scope 5 2 References 5 2.1 Normative references .5 2.2 Informative references5 3 Abbreviatio
8、ns .6 3.1 Abbreviations .6 4 Test cases6 4.1 PlugtestsTMspecification 6 4.1.1 Verification of concept in a Building7 4.1.1.1 Test environment.7 4.1.1.2 Verify Reception Quality of Radio Stations8 4.1.1.3 Revise thresholds, Level and Timings 11 4.1.1.4 More Tests in the Building11 4.1.1.5 Further tes
9、ts to verify the concept in Lab / Anechoic chamber.11 4.1.2 Laboratory Test with Participants.12 4.1.2.1 Test environment.12 4.1.2.2 Test Procedure.12 4.1.3 Field-tests with Participants in Building.14 4.1.3.1 Test environment.14 4.1.3.2 Test procedure.14 5 Results 15 5.1 PlugtestsTMspecification 15
10、 5.1.1 Verification of concept in a Building15 5.1.1.1 Test environment.15 5.1.1.2 Verify Reception Quality of Radio Stations16 5.1.1.3 Revise thresholds, Level and Timings 21 5.1.1.4 More Tests in the Building23 5.1.1.5 Further tests to verify the concept in Lab / Anechoic chamber.23 5.1.2 Laborato
11、ry Test with Participants.23 5.1.2.1 Test environment.24 5.1.2.2 Test Procedure.24 5.1.3 Field-tests with Participants in Building.29 5.1.3.1 Test environment.29 5.1.3.2 Test procedure and results.29 6 Statistical evaluation of Results .42 Annex A: An Overview of Frequency Scheduling in HF Broadcast
12、ing 45 Annex B: Some pictures from the tests on 10thand 11thof October 2007.47 Annex C: Some pictures from the tests from 20thto 23rdof November 200750 Annex D: Change history 54 D.1 Change history of the test cases part 54 D.2 Change history of the results part.54 History 55 ETSI ETSI TR 102 616 V1
13、.1.1 (2008-03) 4 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: “Inte
14、llectual 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 server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no inves
15、tigation, 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 become, essential to the present document. Foreword This Technical Report
16、 (TR) has been produced by ETSI Technical Committee Powerline Telecommunications (PLT) (STF 332). The present document is the report from a Plugtests event in 2007 on coexistence between PLT and short wave radio broadcast, and is structured in two parts as identified below: Part 1: “Test cases“; Par
17、t 2: “Results“. Introduction In order to verify draft TS 102 578 of Work Item 21 (WI21) 5 which deals with coexistence between PLT and short wave radio services including DRM (Digital Radio Mondiale) a Plugtests event was requested by many ETSI members. During the coexistence Plugtests event differe
18、nt PLT modems from different vendors implementing the draft TS related to TS 102 578 will be evaluated. A Special Task Force (STF) 332 has been established to perform the Plugtestsevent. The STF will validate the concept of Smart Notching which is specified in TS 102 578 5. Measurements demonstratin
19、g the ingress of SW radio broadcasts to the electrical installation in a building will be made. Further, using real implementations of PLT modems the practicality of the draft TS will be verified. Verification of levels and thresholds will be carried out along with the performance of the coexistence
20、 implementations. Recommendations for possible improvement to the current draft TS 102 578 of Work Item 21(WI21) will be made as appropriate. The tasks of the STF are in detail: validate or revise the thresholds and resolution bandwidths needed to detect ingress from a receivable radio broadcast; ve
21、rify test bench levels and thresholds; provide feedback from implementations to the ongoing work in TS 102 578 5 as well as to PLT modem implementers; check the feasibility of detecting and notching narrow bands; determine, if it is possible to detect SW radio ingress without demodulating signals by
22、 PLT PHY; determine probability of false detection by PLT modems; verify if there is a way of classifying the narrow band signals source (radio station or switching power supply, or class D amp). Therefore STF 332 will organize the Plugtestsevent. At the execution of the Plugtestsevent any ETSI memb
23、er is free to participate in the execution of any or all of the Plugtestsevent proposed in the present document. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 5 1 Scope Results of the verification of the proposed mechanism to improve coexistence between PLT and short wave radio broadcast. 2 References Refer
24、ences are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if i
25、t is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Ref
26、erence. For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the
27、 expected life of the document. The reference shall include the method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication E
28、TSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (
29、including any amendments) applies. Not applicable. 2.2 Informative references 1 ITU-R Radio Regulations, edition of 2004. 2 ETSI ES 201 980 (V2.2.1): “Digital Radio Mondiale (DRM); System Specification“. 3 ITU-R Recommendation BS.1284: “General methods for the subjective assessment of sound quality“
30、. NOTE: See http:/stason.org/TULARC/radio/shortwave/08-What-is-SINPO-SIO-Shortwave-radio.html. 4 CISPR 16-1-1 (2006-11): “Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus“. 5 ETSI TS
31、102 578 (draft version of 12 October 2007): “PowerLine Telecommunications (PLT); Coexistence between PLT Modems and Short Wave Radio broadcasting services“. NOTE: See http:/webapp.etsi.org/WorkProgram/Report_WorkItem.asp?WKI_ID=24584. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 6 6 ITU-R recommendation BS
32、.1615: “Planning parameters“ for digital sound broadcasting at frequencies below 30 MHz“. 7 ITU-R Recommendation P372: “Radio noise“. 3 Abbreviations 3.1 Abbreviations For the purposes of the present document, the following abbreviations apply: AE Auxiliary Equipment AM Amplitude Modulation CE Consu
33、mer ElectronicsDRM Digital Radio Mondiale NOTE: See ES 201 980 2 (http:/www.drm.org/). EUT Equipment Under Test HFCC High Frequency Co-ordination Conference NOTE: See http:/www.hfcc.org. LI Level of Ingress (in dBm) NHB Noise higher frequency block (in dBm) NLB Noise lower frequency block (in dBm) P
34、LT PowerLine Telecommunications NOTE: See http:/www.etsi.org/plt. S second SINPO Signal Strength, Interference, Noise, Propagation, Overall SW Short Wave 4 Test cases 4.1 PlugtestsTMspecification There are 2 tests to be performed: 1) The concept, as specified in the current draft TS 102 578 5 shall
35、be verified. Levels, Thresholds, Timing, definition of useable radio service reception quality, lower level and slopes of the notch, verification method, etc. This test will be performed on 10th/ 11thof October 2007 in Stuttgart area (Germany). Revised values will be published by 17thof October 2007
36、. 2) Tests with participants. Implementations from modem manufacturers will be verified versus this test specification. These tests will be performed from 19thto 23rdof November 2007. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 7 4.1.1 Verification of concept in a Building 4.1.1.1 Test environment Test wi
37、ll be carried out in a private home. The detailed installation of the power infrastructure is unknown to test participants. The 300 kW SW radio broadcast station in Skelton (UK) will schedule some radio transmission according to the demands of this test. A Spectrum Analyser, Test Receiver and a sele
38、ction of DRM and AM SW radio receivers are available to perform the tests. A calibrated active biconal antenna verifies the field strength in the air. Figure 1: Test Setup in a private living unit Equipment needed: CE SW Radio receiver: - AOR AR7030, Sony ICF-SW77, ICF-1000, Sangean ATS909, TECSUN 9
39、700, etc. DRM: Roberts MP-40, etc. Cable snap ferrites. Spectrum Analyser, PLT coupler 50:100 Impedance matching. Calibrated antenna in 1 MHz f 30 MHz, wooden tripod. Artificial white noise generator: - Coupler to feed noise to the mains grid. - Antenna to broadcast noise inside the building. ETSI E
40、TSI TR 102 616 V1.1.1 (2008-03) 8 4.1.1.2 Verify Reception Quality of Radio Stations This test will be done on the 10thof October 2007. Using a SW radio receiver, scan the SW radio band and record the frequency, service name and reception quality wherever the automatic scan stops. Check for a good p
41、osition of the receiver in the living unit and monitor the field strength there. Connect the Spectrum Analyser to the mains (sequentially at several outlets) and measure the level of ingress of HF broadcast signals there. Do this process in turn 3 times and take the average from the numeric reading
42、as result. Classification for reception quality of AM stations shall be according to SINPO system 3. The empirical rating of the signal quality will be done “democratically“ by the three STF 332 experts. Tables 1 and 2 will be compiled during the tests. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 9 Table
43、1: Reception quality, field strength and level of ingress of AM services Used AM Radio In dBm Measured at outlet No: Level of Ingress noise levels of adjacent frequency block: Lower Block / Higher Block Frequency in kHz Station name Field strength in dB (V/m) SINPO Signal SINPO Interference SINPO No
44、ise SINPO Propagation SINPO Overall 1 2 3 4 LI NLB 6 123 Example AM 50 3 4 4 5 4 NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB Classification for reception quality of DRM stations shall be done according the reception of a DRM channel: DRM Radio Stations using e.g.
45、 Roberts MP-40. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 10Table 2: Reception quality, field strength and level of ingress of DRM services Used DRM Radio In dBm Measured at outlet No: Level of Ingress / noise levels of adjacent frequency block: Noise Lower Block / Noise Higher Block Frequency in kHz St
46、ation name Field strength in dB(V/m) Service receivable? Y/N 1 2 3 4 LI -75 -70 -69 -73 NLB Example DRM 50 Y NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB LI NLB NHB After monitoring radio broadcast services at the Plugtests location, the HFCC Database (see http:/www.hfcc.org
47、) provides information on day and seasonal variations of reception quality. The HFCC Database may help to give an estimate of the necessity of notch parameters. ETSI ETSI TR 102 616 V1.1.1 (2008-03) 114.1.1.3 Revise thresholds, Level and Timings Revise threshold of ingress as defined in draft TS 102
48、 578 5, where an ingress shall be identified as a receivable radio broadcast service, to create a notch. Revise lower level of Notch defined in draft TS 102 578 5, by feeding known noise level to the mains in vicinity of outlet where radio receiver is connected to. Record the level when reception qu
49、ality gets worse (using SINPO). Revise response timings defined in draft TS 102 578 5 to activate notch and reuse the frequencies. Monitor fading behaviour in time domain of a transmission to the test location. Schedule Skelton (UK) test broadcast transmission with 300 kW to monitor its field strength at various times in the test location. Compare it with 2ndlocation. 4.1.1.4 More Tests in the Building If ther
