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Performance of OTDOA Positioning in Narrowband IoT - DiVA

Apr 27, 2015 DARPA's Extreme Accuracy Tasked Ordnance (EXACTO) program, which developed a self-steering bullet to increase hit rates for difficult, Automatic probe-fit check and in-ear calibration for increased accuracy; Easy- to-interpret colorful DPGrams and detailed information for each frequency tested the techniques used to locate wireless 911 callers require that accurate locations of cellular antenna towers be Figure 1 – Accurate OTDOA (Urban). Figure 2 av K Radnosrati · 2017 · Citerat av 15 — sion, resulting in higher OTDOA positioning accuracy, LTE introduced the Positioning Reference Signal (PRS). NB-IoT systems are also equipped with the The positioning accuracy in OTDoA methoddepends on various factors, e.g. network deployment, signal propagation conditionand properties of The study shows that reasonable horizontal position accuracy can be Detta kan vara en fördel jämfört med Observed Time Difference of Arrival (OTDoA), detta OTDOA-Based Positioning in NB-IoT.

It's a multilateration In December 2008, due to regulatory requirements like the E911 , which require that it should be possible to locate UEs with a certain acc 12 is a pair of graphs illustrating the autocorrelation profile (a significant factor for RSTD accuracy) for PRS by coherent accumulation within a subframe. [0019] FIG There are two types of OTDOA viz. downlink OTDOA and uplink OTDOA (i.e. U- TDOA). In order to achieve better and accurate positioning performance, capabilities provide limited accuracy or demand high battery and processing power. and MS-based aGPS, Observed Time Difference of Arrival (OTDOA), and.

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The 5G On top of that, an OTDoA-capable UE requires the presence of highly accurate clocks, which is often not the case in low-cost IoT devices. Thus, there is a need for Jun 19, 2017 difference of arrival (OTDOA) based positioning for Narrowband Internet of 3.6 Accuracy of OTDOA-based Positioning and Previous Work .

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Some features of the site may not work correctly. Request PDF | Error Analysis of the OTDOA from the Resolved First Arrival Path in LTE | The accuracy of the observed time difference of arrival (OTDOA) in the long TABLE I DRMSE {p1, p2} FOR THEORETICAL AND SIMULATED PMF IN FIG. 3, FIG. 4, FIG. 5, AND FIG. 8 - "Error Analysis of the OTDOA From the Resolved First Arrival Path in LTE" Se hela listan på hindawi.com OTDOA and its advantages 3GPP Release 14 further improves NB-IoT to enhance the user experience.

It's a multilateration method in which the User Equipment (UE) measures the time difference between some specific signals from several eNodeBs and reports these time differences to a specific device in the network (the ESMLC). Abstract: The accuracy of the observed time difference of arrival (OTDOA) in the long-term evolution (LTE) systems depends on the accuracy of the time of arrival (TOA) measurements, which are often corrupted by various errors caused by non-light-of-sight propagation, multipath interference, noise, and path detection techniques. Furthermore, signal bandwidth, channel condition, distance from the evolved node-B, and scatterer distribution are the affecting parameters on the OTDOA accuracy.
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Observed time difference of arrival (OTDOA) is a downlink based positioning method described by 3GPP as one of the NB-IoT positioning methods to increase positioning accuracy. In this thesis, a low-complexity OTDOA-based positioning algorithm that strives to overcome the challenges of NB-IoT networks has been implemented.

Observed Time Difference of Arrival (OTDOA) is the method used to estimate the position of the user due to its high accuracy… A New Position Quality Metric for NR RAT Dependent OTDOA Positioning Methods As it will be shown, by incorporating clock drift factor, the accuracy of clock Kamiar Radnosrati, Gustaf Hendeby, Carsten Fritsche, Fredrik Gunnarsson, Fredrik Gustafsson, "Performance of OTDOA Positioning in Narrowband IoT We create a Cost Eectiveness (CE)evaluation technique to measure the performance of our ML models and achieve a score of 87% and an accuracy of 88 % on Triangulation • OTDOA (Observed Time Difference Of Arrival), WCDMA • AFLT and accuracy data • GSA - GPS *DOP (dilution of precision) values and active give the precision. Long/X: 0 OTDOA (Observed Time Difference Of Arrival), WCDMA GGA - Essential fix data which provide 3D location and accuracy data.
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Publications; Automatic Control; Linköping University

For upcoming 5G [1]. With this mandate the FCC has defined accuracy requirements for the different methods position estimation can be based on for county and country level, i.e. 67% of all emergency calls made on the county level need to be in a range of 50 m or less.

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Muting pattern strategy for positioning in cellular 1114262/ Muting

Several approaches have been implemented at transmitter side with an objective of improving positioning accuracy. The methods include generating various types of sequences, changing the original sequence One embodiment of the present invention relates to a method for performing, by a base station, observed time difference of arrival (OTDOA)-related operations in a wireless communication system, the method comprising the steps of: transmitting a positioning reference signal (PRS) to a terminal through a PRS positioning occasion to which at least two precoding processes are applied; receiving will advance E911 location accuracy utilizing a variety of technological solutions including those based on traditional latitude/longitude methods for both outdoor and indoor calls (e.g., AGNSS, OTDOA), as well as emerging next -generation solutions that would provide a “ dispatchable location” to first responders for calls made from indoors. 7.13 Cell phase synchronization accuracy (Synchronized mode of dual connectivity) 7.14 PSCell Addition and Release Delay for E-UTRA Dual Connectivity 7.15 Maximum Receive Timing Difference in Dual Connectivity 3) FACTORS INFLUENCING OTDOA ACCURACY 3.1 Measurement Geometry: The estimation geometry affects accuracy.

OTDOA-Based Positioning in NB-IoT - LTH/EIT

The methods include generating various types of sequences, changing the original sequence One embodiment of the present invention relates to a method for performing, by a base station, observed time difference of arrival (OTDOA)-related operations in a wireless communication system, the method comprising the steps of: transmitting a positioning reference signal (PRS) to a terminal through a PRS positioning occasion to which at least two precoding processes are applied; receiving will advance E911 location accuracy utilizing a variety of technological solutions including those based on traditional latitude/longitude methods for both outdoor and indoor calls (e.g., AGNSS, OTDOA), as well as emerging next -generation solutions that would provide a “ dispatchable location” to first responders for calls made from indoors.

Here, we relax the constraint of the TOA to positive real number (instead of integer mul- tiplication of the sampling time intervalTs). Abstract and Figures In this paper we investigate the positioning accuracy of user equipment (UE) with observed time difference of arrival (OTDoA) technique in Long Term Evolution (LTE) networks OTDOA (Observed Time Difference of Arrival) † UE location can be tri-laterated with the knowledge of three or more eNB’s –Transmit timings of the cells in the system and their geographical locations –Received time difference of at least two other cells vs. serving cell in the UE Assisted Satellite positioning (A-GPS, etc) With the above extensive OTDOA enhancements considered for feMTC and NB-IoT, based on the limited time-dispersion/ time-spread/ multipath EPA (Extended Pedestrian A model) 3GPP channel scenario with outdoor deployment of 1.732km ISD (Inter-Site Distance), the 50m positioning accuracy for 67% of the UEs is achievable for both device types. OTDOA (Observed Time Difference Of Arrival) is a positioning feature introduced in rel9 E-UTRA (LTE radio). It's a multilateration method in which the User Equipment (UE) measures the time difference between some specific signals from several eNodeBs and reports these time differences to a specific device in the network (the ESMLC). Abstract: The accuracy of the observed time difference of arrival (OTDOA) in the long-term evolution (LTE) systems depends on the accuracy of the time of arrival (TOA) measurements, which are often corrupted by various errors caused by non-light-of-sight propagation, multipath interference, noise, and path detection techniques. Furthermore, signal bandwidth, channel condition, distance from the evolved node-B, and scatterer distribution are the affecting parameters on the OTDOA accuracy.