Development of SDR-based Network Positioning Technology. LTE Reference Signals Reception and Processing Procedures
https://doi.org/10.55648/1998-6920-2023-17-1-52-65
Abstract
Introduction. The search for technical solutions to improve the positioning accuracy of devices using the infrastructure of base stations of existing and planned cellular radio networks is an important area of research and development in the last decade. Interest in network positioning is due to the unreliable reception of signals from global navigation satellite systems in dense urban areas. The instrument for experimental approbation of technical solutions is the software and hardware of the SDR software defined radio technology. This work is a continuation of the research on the use of SDR technology for network positioning tasks in terms of issues related to the reception and processing of reference signals of the LTE standard. Materials and methods. The paper presents an experimentally tested sequence of procedures for receiving and processing LTE reference signals in order to collect primary differential-range measurements for software implementation on a mock-up of a user device built using SDR software defined radio technology. Results. The software implementation of the presented procedures underlies the SDR layout of the user device for receiving and processing reference signals of the LTE standard. Discussion and conclusions. Approbation of the operation of the SDR testbed of the user device in laboratory conditions with SDR testbeds of base stations, as well as in the field with base stations of functioning LTE networks, makes it possible to search for technical solutions to improve the accuracy of positioning.
Supporting agencies: Исследование выполнено при финансовой поддержке Российского научного фонда (грант № 22-29- 00528), https://rscf.ru/project/22-29-00528/.
About the Authors
G. A. Fokin
The Bonch-Bruevich Saint Petersburg State University of Telecommunications (SPbSUT)
Russian Federation
Russian Federation
Grigoriy A. Fokin, Dr. of Sci. (Engineering), Docent; Professor of the Department of Radio Communication and Broadcasting
193232, Saint Petersburg, Bolshevikov Prospect 22
D. B. Volgushev
The Bonch-Bruevich Saint Petersburg State University of Telecommunications (SPbSUT)
Russian Federation
Russian Federation
Dmitry B. Volgushev, Research assistant
193232, Saint Petersburg, Bolshevikov Prospect 22
References
1. Fokin G.A. Tekhnologii setevogo pozitsionirovaniya [Network positioning technologies]. St. Petersburg, Sankt-Peterburgskiy gosudarstvennyy universitet telekommunikatsiy im. prof. M.A. Bonch-Bruyevicha, 2020. 558 p.
2. Fokin G.A. Tekhnologii setevogo pozitsionirovaniya 5G [5G network positioning technologies]. Moscow, Goryachaya liniya–Telekom, 2021. 456 p.
3. Fokin G.A. Kompleks modeley i metodov pozitsionirovaniya ustroystv v setyakh pyatogo pokoleniya. Dissertatsiya na soiskaniye uchenoy stepeni doktora tekhnicheskikh nauk [A set of models and methods for positioning devices in fifth-generation networks], Doctor’s degree dissertation, St. Petersburg, 2021. 499 p.
4. Gelgor A.L., Pavlenko I.I., Gorlov A.I., Fokin G.A., Popov E.A., Lavrukhin V.A., Sivers M.A. Pervichnaya sinkhronizatsiya s bazovymi stantsiyami LTE [Primary synchronization with LTE base stations]. Electromagnetic waves and electronic systems, 2014, vol. 19, no. 7, pp. 54-62.
5. Gelgor A.L., Pavlenko I.I., Fokin G.A., Gorlov A.I., Popov E.A., Lavrukhin V.A., Sivers M.A. Pelengatsiya bazovykh stantsiy v setyakh LTE [Direction finding of base stations in LTE networks]. Electrosvyaz, 2014, no. 9, pp. 34-39.
6. Fokin G.A., Volgushev D.B., Kharin V.N. Ispol'zovaniye SDR tekhnologii dlya zadach setevogo pozitsionirovaniya. Formirovaniye opornykh signalov LTE [Using SDR technology for network positioning tasks. Formation of LTE reference signals]. T-Comm: Telecommunications and transport, 2022. vol. 16, no. 5, pp. 28-47.
7. Fokin G.A., Lavrukhin V.A., Volgushev D.A., Kireev A.V. Model'no-oriyentirovannoye proyektirovaniye na osnove SDR [Model-Based Design Based on SDR]. Control Systems and Information Technologies, 2015, no. 2 (60), pp. 94-99.
8. Fokin G.A., Bulanov D.V., Volgushev D.B. Model'no-oriyentirovannoye proyektirovaniye sistem radiosvyazi na osnove PKR [Model-Based Design of Radio Communication Systems Based on SDR]. Vestnik svyazi, 2015, no. 6, pp. 26-30.
9. Fokin G.A. Tekhnologii programmno-konfiguriruyemogo radio [Software Defined Radio Technologies]. Moscow, Goryachaya liniya-Telekom, 2019. 316 p.
10. Fokin G.A., Volgushev D.B. Ispol'zovaniye SDR-tekhnologii dlya zadach setevogo pozitsionirovaniya. Modeli priyema i obrabotki opornykh signalov LTE [Development of SDR-based network positioning technology. LTE reference signals reception and processing models]. Vestnik SibGUTI, 2022, no. 3 (59), pp. 62-83.
11. Shamaei K., Khalife J., Kassas Z. Performance characterization of positioning in LTE systems. Proceedings of the 29th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2016), 2016, pp. 2262-2270.
12. Shamaei K., Kassas Z.M. Receiver Design and Time of Arrival Estimation for Opportunistic Localization With 5G Signals. IEEE Transactions on Wireless Communications, 2021, vol. 20, no. 7, pp. 4716- 4731.
13. Shamaei K. Exploiting Cellular Signals for Navigation: 4G to 5G. University of California, Irvine, 2020.
14. Shamaei K., Khalife J., Kassas Z.M. Comparative results for positioning with secondary synchronization signal versus cell specific reference signal in LTE systems. Proceedings of the 2017 International Technical Meeting of the Institute of Navigation, 2017, pp. 1256-1268.
15. Shamaei K., Khalife J., Kassas Z.M. Exploiting LTE Signals for Navigation: Theory to Implementation. IEEE Transactions on Wireless Communications, 2018, vol. 17, no. 4, pp. 2173-2189.
16. Kassas Z.M., Shamaei K., Khalife J. SDR for navigation with LTE signals. Patent US11187774B2. United States. University of California. Publication 30.11.2021.
17. 3GPP TS 36.211 V16.7.0 (2021-12). Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 17).
18. 3GPP TS 36.212 V17.1.0 (2022-03). Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (Release 17).
19. 3GPP TS 38.211 V17.2.0 (2022-06). NR; Physical channels and modulation (Release 17).
20. Fokin G.A., Volgushev D.B. Programmnyy modul' pervichnoy obrabotki opornykh signalov standarta LTE pri pozitsionirovanii ustroystv [Software module for primary processing of reference signals of the LTE standard when positioning devices]. Certificate of state registration of the computer program 2022619804. Application 2022618875, submitted on 05.16.2022, published on 05.26.2022.
21. Cell Search, MIB and SIB1 Recovery. LTE Toolbox. MathWorks. available at: https://www.mathworks.com/help/lte/ug/cell-search-mib-and-sib1-recovery.html (accessed 31.03.2023).
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For citations:
Fokin G.A., Volgushev D.B. Development of SDR-based Network Positioning Technology. LTE Reference Signals Reception and Processing Procedures. The Herald of the Siberian State University of Telecommunications and Information Science. 2023;17(1):52-65. (In Russ.) https://doi.org/10.55648/1998-6920-2023-17-1-52-65
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