A New Type of 5G-Oriented Integrated BDS/SON High-Precision Positioning

Tong, Wenhua; Zou, Decai; Zhang, Xiaozhen; Shen, Pengli; Lu, Xiaochun; Wang, Pengbo; Yin, Ting

doi:10.3390/rs13214261

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…According to 3GPP R16 TS38.104 [4], 5G is divided into two main frequency bands: FR1 (410-7125 MHz) and FR2 (24,250-52,600 MHz), of which the 5G band allocated to China Mobile is 2515 MHz. In addition, due to the ionosphere and the long distance of space transmission [5,6], the landing power of Beidou signals is around −160 dBW, which makes it somewhat vulnerable.redAs the Beidou RDSS system has not yet been used with 5G systems during the initial frequency design, the impact of 5G out-of-band spurious emission on the Beidou RDSS had not been taken into account. Consequently, the terrestrial 5G network could have an impact on the delicate Beidou system's performance.…”

Section: Introductionmentioning

confidence: 99%

Safety Assessment for Full Flight between Beidou Radio Determination Satellite Service Airborne Equipment and 5G System

et al. 2023

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The Beidou Radio Determination Satellite Service (RDSS) is an advantageous service of the Beidou system. However, due to the weak landing power of Beidou RDSS signals and an operating frequency close to the 5G frequency, the system is vulnerable to interference from ground signals. In this paper, from the perspective of civil aviation safety, different evaluation indicators are used for the takeoff and cruise phases, respectively, to study the impact caused by adjacent frequency interference on airborne Beidou RDSS equipment. In the takeoff phase, accurate aircraft position information is obtained by processing real trajectory files. Deterministic analysis methods are used to determine the safety distance for the coexistence of the two systems. During the cruise phase, ground-based 5G base stations have less influence on the airborne RDSS receiver due to the high flight altitude, so the main consideration is electromagnetic compatibility between the airborne Beidou RDSS system and the 5G ATG system. By establishing a Boeing 737–800 simulation model, the antenna isolation degree is used as the evaluation index, and a reasonable antenna layout is given according to the evaluation results. In this study, the theoretical simulation and real flight data are combined to summarise the exact range of adjacent frequency influence during the takeoff phase and a reasonable antenna layout during the cruise phase.

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Section: Introductionmentioning

confidence: 99%

Safety Assessment for Full Flight between Beidou Radio Determination Satellite Service Airborne Equipment and 5G System

et al. 2023

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“…Fabius et al propose that the technology of 5G communication-assisted GNSS can broadcast ephemeris and corrections from newly implemented IoT base stations to user terminals and also send secure positioning information from terminals to monitor network applications, improving the performance of IoT in terms of accuracy, continuity, and time to first fix (TTFF) [2]. Tong et al proposed a robust adaptive fading filter (RAF) algorithm based on predicted residuals and a joint Kalman filter (FKF) algorithm operating in fused feedback mode in the context of a 5G network environment based on device-to-device (D2D) and self-organizing network (SON) technologies to achieve robust, reliable, and continuous high-precision positioning services with anti-interference capability and good generality after integrating BDS and SON positioning data [3]. Wang et al investigated location-based TA estimation for 5G-integrated LEO satellite communication systems.…”

Section: Introductionmentioning

confidence: 99%

A Fast Acquisition Algorithm for Hybrid Signals of 5G and BeiDou B1

et al. 2023

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With the large-scale use of BeiDou navigation and 5G technology worldwide, integrating BeiDou navigation and communication has become a hot research topic in navigation and positioning technology. Low-cost, miniaturized, and susceptible mixed-signal receivers will become the future receiver technology development trend. However, the current receiver technology still faces the challenge of further improving the positioning service capability and communication quality, which includes the lack of practical analysis of the compatibility between signals and the lack of mixed-signal processing capability of the receiver baseband key technology. To address these problems, we start by analyzing the signal part of 5G out-of-band signals falling into the BD B1 signal band, conduct a detailed analysis of the mixed signal regime and frequency planning, and design a hybrid receiver architecture compatible with both signals, and propose an SC-PMF-FFT fast capture algorithm based on strong correlation, which takes advantage of the strong correlation of signals broadcast on the BD B1 frequency point from B1I to B1C, and reuses the structure of the CDMA system signal capture algorithm to complete the fast capture of 5G signals using an OFDM system. The experiments show that the method can capture the BeiDou B1 signal with a sensitivity of −154 dBm and a whole constellation capture time of no more than 40 ms with the inlet power of the 5G signal not exceeding −45 dBw.

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“…The research of indoor and outdoor joint positioning using 5G shows that when there is no GNSS signal, it is a good choice to use 5G signal instead. Although there have studies use federated filtering, INS is not used as a reference system [26,27]. These studies show that integrated navigation using new sensors needs to be more comprehensive.…”

Section: Introductionmentioning

confidence: 99%

Simulation Experiment and Analysis of GNSS/INS/LEO/5G Integrated Navigation Based on Federated Filtering Algorithm

Wang

Zhao

Zhang

et al. 2022

Sensors

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This article examines the positioning effect of integrated navigation after adding an LEO constellation signal source and a 5G ranging signal source in the context of China’s new infrastructure construction. The tightly coupled Kalman federal filters are used as the algorithm framework. Each signal source required for integrated navigation is simulated in this article. At the same time, by limiting the range of the azimuth angle and visible height angle, different experimental scenes are simulated to verify the contribution of the new signal source to the traditional satellite navigation, and the positioning results are analyzed. Finally, the article compares the distribution of different federal filtering information factors and reveals the method of assigning information factors when combining navigation with sensors with different precision. The experimental results show that the addition of LEO constellation and 5G ranging signals improves the positioning accuracy of the original INS/GNSS by an order of magnitude and ensures a high degree of positioning continuity. Moreover, the experiment shows that the federated filtering algorithm can adapt to the combined navigation mode in different scenarios by combining different precision sensors for navigation positioning.

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A New Type of 5G-Oriented Integrated BDS/SON High-Precision Positioning

Cited by 4 publications

References 5 publications

Safety Assessment for Full Flight between Beidou Radio Determination Satellite Service Airborne Equipment and 5G System

Safety Assessment for Full Flight between Beidou Radio Determination Satellite Service Airborne Equipment and 5G System

A Fast Acquisition Algorithm for Hybrid Signals of 5G and BeiDou B1

Simulation Experiment and Analysis of GNSS/INS/LEO/5G Integrated Navigation Based on Federated Filtering Algorithm

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