ETSI TR 102 753-2008 Terrestrial Trunked Radio (TETRA) TETRA mobiles moving at high velocity (V1 1 1)《陆地集群无线电(TETRA) 高速率下的TETRA移动性(版本1 1 1)》.pdf

1、 ETSI TR 102 753 V1.1.1 (2008-05)Technical Report Terrestrial Trunked Radio (TETRA);TETRA mobiles moving at high velocityETSI ETSI TR 102 753 V1.1.1 (2008-05) 2 Reference DTR/TETRA-01188 Keywords MS, radio, TETRA ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 4

2、2 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 from: http:/www.etsi.org The present document may be made available in mor

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7、GPP Organizational Partners. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 2.1 Normative references .5 2.2 Informative references5 3 Abbreviations .6 4 Air to ground field test .6 4.1 Configuration and test area.6 4.2 Results 7 5 P

8、erformance test in High speed train8 5.1 Configuration and test area.8 5.2 Results 10 History 14 ETSI ETSI TR 102 753 V1.1.1 (2008-05) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these es

9、sential IPRs, if any, is publicly available 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 upda

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11、 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 ETSI Technical Committee Terrestrial Trunked Radio (TETRA). ETSI ETSI TR 102 753 V1.1.1 (2008-05) 5 1 Scope The present document describes the setup and

12、results of operational tests with TETRA terminals at high velocity. In September 2004 tests were performed with a mobile radio temporarily built into a fixed wing airplane. In March 2006 tests were performed using a portable radio in a high speed train. 2 References References are either specific (i

13、dentified 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 it is accepted that it will b

14、e 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/Reference. For online reference

15、d 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 expected life of the docume

16、nt. 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 ETSI cannot guarantee their l

17、ong 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 (including any amendments) ap

18、plies. Not applicable. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amend

19、ments) applies. Not applicable. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 6 3 Abbreviations For the purposes of the present document, the following abbreviations apply: GPS Global Positioning System MER Message Erasure Rate MS Mobile Station RSSI Received Signal Strength Indication 4 Air to ground field

20、 test 4.1 Configuration and test area The test at high speed was part of a general Air to Ground field test held in September 2004 in the Netherlands. For the Air to Ground test a fixed wing airplane was used with a mobile TETRA radio. See figures 1 and 2. Figure 1: Airplane used during the test Fig

21、ure 2: Mobile radio built into a cradle ETSI ETSI TR 102 753 V1.1.1 (2008-05) 7 The test was performed in the north west part of the Netherlands at the coast of the IJsselmeer. See figure 3. Test area Figure 3: Test area Air to Ground high speed The MS behaviour and the position, speed and altitude

22、of the airplane were recorded with a laptop PC running logging software. For this the laptop PC was connected to the mobile and a GPS receiver. 4.2 Results The normal air speed of the airplane used for the test is around 200 km/h. Due to a strong tale wind and descent of the airplane a ground speed

23、just above 300 km/h was reached during the test. Figure 4 shows the recorded ground speed versus time. 0 50 100 150 200 250 300 350 0 100 200 300 400 500 600 Travel distance Ground speed (km/h) Figure 4: Ground speed during the trip In figure 5 the Received Signal Strength Indication (RSSI) during t

24、he flight is shown. In the area with speeds above 300 km/h (between travel distance 80 km to 180 km) the RSSI is between -80 and -75 dBm. The max value of the RSSI in the test stretch is -50 dBm, when the airplane is very close to the Air to Ground base station. ETSI ETSI TR 102 753 V1.1.1 (2008-05)

25、 8 -100 -90 -80 -70 -60 -50 -40 0 100 200 300 400 500 600 Travel distance RSSI (dBm) Airplane in close proximity of the base station Figure 5: RSSI during the flight. Figure 6 shows the Message Erasure Rate (MER) during the flight. At speeds 300 km/h the MER remains zero. 0 0,1 0,2 0,3 0,4 0,5 0,6 0

26、,7 0,8 0,9 1 0 100 200 300 400 500 600 Travel distance MER (%) Figure 6: Message Erasure Rate (MER) during the flight 5 Performance test in High speed train 5.1 Configuration and test area The test at high speed was part of a general performance test held in March 2006 in the Netherlands. For the co

27、verage test a portable TETRA radio was used in the High speed train. See figures 7 and 8. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 9 Figure 7: The High speed train Figure 8: Test setup (portable radio on the far left) The radio was positioned close to the window. The MS behaviour and position and speed

28、 of the train were recorded with a laptop PC running logging software. For this the laptop PC was connected to the MS and a GPS receiver. The test was performed in the south-western part of the Netherlands travelling from Rotterdam towards the Belgian border. See figure 9. Test area Figure 9: Test a

29、rea High speed train ETSI ETSI TR 102 753 V1.1.1 (2008-05) 105.2 Results Figure 10: Speed (km/h) Figures 10 and 11 show the speed of the train during the test run. Most of the run the speed was over 300 km/h. The maximum speed that was reached was 332 km/h. 2802903003103203303401 917 25 33 41 49 57

30、65 73 81 89 97105 113 121 129 137 145 153 161 169 177 185 193 201 209 217 225 233 241 249 257 265 273 281 289 297 305 313Travel distanceSpeedkm/h)Figure 11: Speed (km/h) ETSI ETSI TR 102 753 V1.1.1 (2008-05) 11Figure 12: Cell reselection behaviour Figure 12 shows the cell reselection behaviour of th

31、e TETRA radio during the test run. At the start of the test run the radio uses base station 1403 (not on the map). Soon it switches to basestation 1210, followed by basestation 1204, 1203 and 1223. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 12Figure 13: Received Signal Strength Indication (dBm) Figure 13

32、 shows the Received Signal Strength Indication (RSSI) as reported by the TETRA radio. Most of the run the level is above -80 dBm. At the Belgian border the reported level is between -90 dBm and -100 dBm. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 13Figure 14: Message Erasure Rate (%) Figure 14 shows the

33、Message Erasure Rate (MER) reported by the TETRA radio. Around the cell reselections the MER increases to 10 %. At the cell reselection near the Belgian border the MER exceeds 10 % and the radio loses coverage for a short while. During the rest of the high speed part of the test run the MER stays below 4 %. ETSI ETSI TR 102 753 V1.1.1 (2008-05) 14History Document history V1.1.1 May 2008 Publication