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The Technical and Economic Consequences of Protecting GSM-R in Sweden
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS.
2016 (engelsk)Inngår i: 2016 IEEE 83RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING), IEEE, 2016Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

A number of protection criteria were implemented by the Swedish regulator PTS in order to protect the GSM-R operations in Sweden. In order to protect the GSM-R receivers from interference and blocking, two different constraints were implemented: First, a limitation of the "out-of-band" emissions from the mobile operators' existing base stations operating in the 900MHz band was implemented. Secondly, a limitation of the aggregated power received over the railroad within the operator's spectrum allocation in the 900 band was added. In this study, the background of these protection criteria is presented and their technical and economic consequences estimated. Regarding "out-of-band" emissions from base stations, four alternative protection levels have been investigated: -92, -95, -98 and -107 dBm. It is found that in order to meet these requirements, safety distances of between 280 and 1200m need to be introduced, which means that between 1500 and 2700 base stations would be needed to be taken out of service. In order to avoid blocking, the received power over the embankment from each base station within the public GSM band would also be needed to be limited. The consequences of limiting the received power levels to either -10, -23 or -40 dBm were here investigated. Given the level of blocking protection, it is found that between 1085 and 2330 base stations within the vicinity of the railway track would be affected and possibly needed to be shut down To avoid causing interference, all operators - with the exception of Hi3G - may limit their "out-of-band" emissions by installing filters on the base stations. The cost of such installations is estimated at 50 000 SEK per base station. Depending on the protection level that is applied, the estimated total cost for the mobile operators is between 67 and 113 million SEK (about 12 million Euros). In order to protect the GSM-R receivers from blocking, some 3500 locomotives would need to be equipped with additional filters at a total cost of around 130 million SEK (about 14 million Euros).

sted, utgiver, år, opplag, sider
IEEE, 2016.
Serie
IEEE Vehicular Technology Conference Proceedings, ISSN 1550-2252
Emneord [en]
GSM-R, out-of-band emissions, blocking, interference
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-197030DOI: 10.1109/VTCSpring.2016.7504505ISI: 000386528400453Scopus ID: 2-s2.0-84979729414ISBN: 978-1-5090-1698-3 (tryckt)OAI: oai:DiVA.org:kth-197030DiVA, id: diva2:1053114
Konferanse
IEEE 83rd Vehicular Technology Conference (VTC Spring), MAY 15-18, 2016, Nanjing, PEOPLES R CHINA
Merknad

QC 20161208

Tilgjengelig fra: 2016-12-08 Laget: 2016-11-28 Sist oppdatert: 2016-12-08bibliografisk kontrollert

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