TDOA - Uppsatser.se
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The e-cid technique improves this estimate by using measurements such as Round Trip Time (rtt) and Angle of Arrival (aoa). If many bss are in range, otdoa can give a position from combined Reference Signal … 8.2.3 OTDOA Positioning Procedures 8.2.3.1 Capability Transfer Procedure. The Capability Transfer procedure for OTDOA positioning is described in 8.2.3.2 Assistance Data Transfer Procedure. The purpose of this procedure is to enable the LMF to provide assistance 8.2.3.3 Location Information 2020-10-23 Hu, Sha et al. "Improving the Performance of OTDOA based Positioning in NB-IoT Systems".
2. Techniques for observed time difference of arrival (OTDOA) positioning based on heterogeneous reference signals (RSs) are discussed. One example 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 Hybrid-GNSS or GNSS + Mobile Radio Cellular Positioning like OTDOA. Control Plane (C-Plane) and User Plane (U-Plane) session handling: LPP, SUPL 2.0.
Toggle navigation. Home About ION 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. It utilizes neighbor cells to derive an observed time difference of arrival (ToA) relative to the serving cell.
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Let the unknown UE’s position in two-dimensional (2D) coordinates be denoted by p = (p x;p y)T. Further, let N be the set of eNBs in the cellular network; N= f1;:::;Ng. Then, for each i2N, the known location of the eNB is given by ‘i=(‘i x;‘ i y) T. in its most basic form returns the position of the serving cell in the network. The e-cid technique improves this estimate by using measurements such as Round Trip Time (rtt) and Angle of Arrival (aoa).
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summarize the designs of OTDOA positioning reference signals, and present simulation Performance of OTDOA positioning in narrowband IoT systems.
The following is from that whitepaper: Release-15 NR provides support for RAT-independent positioning techniques and Observed Time Difference Of Arrival (OTDOA) on LTE carriers. Hybrid-GNSS or GNSS + Mobile Radio Cellular Positioning like OTDOA Control Plane (C-Plane) and User Plane (U-Plane) session handling: LPP, SUPL 2.0 Mobile phone users expect the same Quality of Service whether they are stationary, on the move, in a city, or on the countryside.
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We investigate opportunities for device tracking in NB-IoT systems using Observed Time Difference of Arrival (OTDOA) measurements.
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Hybrid-GNSS or GNSS + Mobile Radio Cellular Positioning like OTDOA Control Plane (C-Plane) and User Plane (U-Plane) session handling: LPP, SUPL 2.0 Mobile phone users expect the same Quality of Service whether they are stationary, on the move, in a city, or on the countryside. C. Position Estimation The OTDOA method applies multilateration to estimate the position. Let the unknown UE’s position in two-dimensional (2D) coordinates be denoted by p = (p x;p y)T.
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Performance of OTDOA Positioning in Narrowband IoT Systems - DiVA
To enhance positioning accuracy for all types of environment, LTE uses complementary positioning methods. The main location technologies used are Observed Time Difference of Arrival (OTDOA) and Assisted Global Navigation Satellite System (A-GNSS), due to the a Positioning Method in LTE Thomas Arthur Herbert Bressner 890419-2872 länk OTDoA, studerar denna avhandling den potentiella användningen av UTDoA i LTE med The OTDOA positioning method is illustrated in Figure 1-1, where the UE measures three TOA’s relative to the UE internal time base, τ 1, τ 2, and τ 3. The measurement from eNodeB 1 is selected as reference, and two OTDOA’s are formed: t 2,1 = τ 2 – τ 1 and t 3,1 = τ 3 – τ 1. eNB 1 eNB 2 eNB 3 t 3(t 1 t 2(t 1 Measurement0 u ncer tai y t 2 t 1 t 3 (OTDOA) is a downlink based positioning method de-scribed by 3GPP as one of the NB-IoT positioning methods to increase positioning accuracy. It utilizes neighbor cells to derive an observed time difference of arrival (ToA) rela-tive to the serving cell. Depending on which positioning mode is configured, either UE based or UE assisted, the While this protocol supports several positioning methods such as A-GNSS and WiFi; the OTDOA and E-CID positioning methods are specified in the 3GPP Release 14 together with the new Narrowband Positioning Reference signals (NPRS) and support for idle mode positioning. OTDOA and E-CID positioning methods are explained in the following paragraphs.