otdoa neighbor Prior art date 2013-07-12 Application number PCT/US2014/043940 Other languages English (en) French (fr) Other versions WO2015006046A3 (en Inventor Sven Fischer Original Assignee Qualcomm Incorporated Priority date (The priority date is an assumption and is not a legal conclusion.

• It is defined in 3GPP Rel-9. • It is known as downlink Observed Time Difference Of Arrival. • It is assisted by UE. It means downlink signals from serving cell and multiple neighbours are received by UE. Observed Time Difference Of Arrival (OTDOA) is also a Release 9 positioning method, in which the UE measures the downlink Positioning Reference Signal (PRS) time difference of arrivals of several neighbor cells in comparison to a reference cell. ference of arrival (OTDOA) will provide even more accurate results. This method is used by the LTE wireless communica-tions standard and is based on the delay differences between signals emitted by several LTE base stations. The conventional satellite-based method: A-GPS Significantly better results are obtained by using GPS signals, OTDOA, used for positioning for emergency services, requires relative timing as tight as 100 ns!

Otdoa

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). Uplink OTDOA (U-TDOA) is specified in 3GPP Release-11. How OTDOA Works • OTDOA uses hyperbolic multilateral algorithm to determine time of arrival of downlink signals from multiple eNBs (includes 1 serving eNB and 2 or more neighbour eNBs). • TOA from neighbour eNBs are substracted from reference or serving eNB to form OTDOA's. 2014-06-06 · This document describes the functionalities for the support of OTDOA location in LTE as currently defined in 3GPP (and OMA).

OTDOA l. eCID l Hybrid methods l. Combination of: – Multiple satellite based methods. – Satellites and Mobile radio positioning. COMPANY RESTRICTED

We investigate opportunities for device tracking in NB-IoT systems using Observed Time Difference of Arrival (OTDOA) measurements. Reference Signal Time Difference (RSTD) reports are simulated to be Observed Time Difference of Arrival (OTDOA) and enhanced Cell ID (eCID) Hybrid Methods: 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 6.5.1.7 OTDOA Capability Information ..

The study found that the existing positioning, based on Observed Time Difference of Arrival (OTDOA) in LTE does meet the FCC indoor user requirements for horizontal accuracy. Location-based services and emergency call positioning drive the development of positioning in wireless networks.

"Improving the Performance of OTDOA based Positioning in NB-IoT Systems". IEEE GLOBECOM, Singapore, Dec. 2017.

on LTE networks) is introduced in this whitepaper.
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In dense urban and indoor environments, OTDOA can be used to supplement AGPS, provided the user device can detect position reference signals (PRS) from three or more eNBs. OTDOA Positioning for Multipath Environments Ivar Olofsson. Master of Science Thesis in Electrical Engineering Enhancements in LTE OTDOA Positioning for Multipath Environments Ivar Olofsson LiTH-ISY-EX--16/4950--SE Supervisor: Vladimir Savic isy, Linköping University Henrik Rydén 2. hellaPHY OTDOA RSTD measurements and position estimation is tightly coupled and optimized for performance and energy conservation; and 3. the hellaPHY OTDOA protocol is much lighter than the standard LPP/SUPL protocol [2, 3] With standard OTDOA uplink RSTD transmissions shortens UE battery life and adds congestion to the network.

Operativsystem, Android 7.1 Nougat. SIM-korttyp, Nano-SIM.
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3GPP TS 36.355 version 9.2.1 Release 9 ETSI 8 ETSI TS 136 355 V9.2.1 (2010-07) Foreword This Technical Specification has been produced by the 3rd Generation Partnership Project (3GPP). The contents of the present document are subject to continuing work within the …

In: 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio The OTDOA positioning. method uses the UE estimation of the relative distance between a reference. base station and a number of neighboring base stations. such as OTDOA / DL-TDOA, ECID, multi-cell RTT and the Angle Of Arrival (AOA) based techniques that take advantage of 5G mmWave beamforming features.

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Detektion direkter Sichtverbindung zu einer UMTS-Basisstation zur verbesserten OTDOA-basierten Ortung einer Mobilstation: Hesse, Thomas: Amazon.se:

Only OTDOA for E-UTRAN (i.e. on LTE networks) is introduced in this whitepaper. 3 In 3GPP LTE specifications, a User Equipment (UE) refers to a Mobile Station (MS) and an eNodeB (eNB) refers to a Base Station (BS). In this version of the specification, only OTDOA based on LTE signals is supported. In the OTDOA positioning method, the UE position is estimated based on measurements taken at the UE of downlink radio signals from multiple E-UTRA TPs (possibly including PRS-only E-UTRA TPs from a PRS-based TBS), along with knowledge of the geographical coordinates of the measured TPs and their relative downlink timing. 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.