O. Apilo et al., "Measured GPS performance under LTE-M in-device interference," 2018 9th ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC), Noordwijk, Netherlands, 2018, pp. 1-7. doi: 10.1109/NAVITEC.2018.8642666
Measured GPS performance under LTE-M in-device interference
|Author:||Apilo, Olli1; Hiivala, Mikko1; Kuosmonen, Atte2;|
1VTT Technical Research Centre of Finland Ltd, Kaitovayla 1, P.O. Box 1100, FI-90571 Oulu, Finland
2Polar Electro Oy, Professorintie 5, FI-90440 Kempele, Finland
3Verkotan, Elektroniikkatie 17, FI-90590 Oulu, Finland
4Centre for Wireless Communications, University of Oulu, FI-90014 Oulu, Finland
|Online Access:||PDF Full Text (PDF, 0.2 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019081524357
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2019-08-15
In this paper we present the measurement results for time-to-fix, position accuracy, and carrier-to-noise ratio of mass-market Global Positioning System (GPS) receivers under the in-device interference from an LTE-M transmitter. The laboratory measurement set-up is built using software-defined radio (SDR) platforms to conductively feed emulated GPS L1 signals and LTE-M interference signals to the antenna input of the GPS receivers. The LTE-M interference from second harmonics is accurately modelled taking into account the transmitter activity patterns in different coverage enhancement modes. According to measurements, there are large variations in interference tolerance between different GPS receivers. REC01 was able to tolerate high level of interference during tracking and also in acquisition as long as the interference pulse duration is not too long (tens of milliseconds). REC02 performed clearly worse and tolerated only low levels of LTE-M interference during both acquisition and tracking. The same measurement set-up can be used with any GPS receiver for designing proper isolation and filtering levels for co-existing LTE-M transmitters.
ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing
|Pages:||1 - 7|
2018 9th ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC)
ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
The work was done in the Hilla WERME project that is partly funded by Business Finland.
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