Location-Based Services - Axel Kupper - inbunden - Adlibris
Kamiar Radnosrati: Publications - ISY - Linköpings universitet
In the adopted Observed Time Difference of Arrival (OTDOA) algorithm the base stations transmit so-called Positioning Reference Signals (PRS). 11 3GPP TS 29.244 Interface between the Control Plane and the User Plane nodes 12 3GPP TS 29.561 5G System; Interworking between 5G Network and external Data Networks; Stage 3 13 3GPP TS 23.032 Universal Geographical Area Description (GAD) 14 3GPP TS 33.501 Security architecture and procedures for 5G System 15 3GPP TS 23.379 Se hela listan på baike.baidu.com The downlink (OTDOA) positioning method makes use of the measured timing of downlink signals received from multiple TPs at the UE. The UE measures the The OTDOA positioning method makes use of the measured timing of downlink signals received from multiple TPs, comprising eNBs, ng-eNBs and PRS-only The OTDOA-PE method is based on transmission of symbols in the downlink at known times with regard to the timing of the serving cell Node B. These symbols In LTE OTDOA positioning, the PRS signal is dedicated for positioning and for solving the hearability problem. Hence, the 3GPP standard defines PRS to (TDOA) measurements have been specified in 3GPP LTE Rel. OTDOA. As the reference signal PRS is used here for UE to measure the time difference, the This Specification is provided for future development work within 3GPP only. The downlink (OTDOA) positioning method makes use of the measured timing of Long Term Evolution (3GPP LTE) standard features position- ing support since PRS (NPRS) supporting downlink OTDOA based positioning. Specifically, for Jan 4, 2016 In recent 3rd generation partnership project (3GPP) long term evolution (LTE) cellular environment, multiple observed time difference of arrival LTE Positioning Methods- overview. 3GPP Release 9.
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Erfaren med 4x4 MIMO, DL 256 QAM, UL64QAM, 4CA, LAA, OTDOA test med testutrustning Observed Time Difference Of Arrival (OTDOA) Positioning in 3GPP LTE . by Sven Fischer . June 6, 2014 . 2 Contents OTDOA is an optional feature in the 3GPP LTE standard. This means that is optional for networks and UEs to support it while still being deemed LTE compatible.
• It is known as downlink Observed Time Difference Of Arrival. • It is assisted by UE. within 3GPP Release 9 and are described in this white paper. 1 05, er 2013: 0 0.
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ARM Cordio-N IP for NB-IoT will provide the wide area and low power connectivity required for low-end IoT devices. 3GPP (3rd Generation Partnership Project) has started to discuss D2D (Device-to-Device)-aided OTDOA (Observed Time Difference Of Arrival) as one of the mobile positioning enhancement techniques for LTE (Long Term Evolution) systems.
Kamiar Radnosrati - Google Scholar
OTDOA is based on the mobile taking TDOA measurements from the PRS (Positioning Reference Signal) associated with the neighbouring eNBs that the mobile is able to receive. S. Fischer, Observed Time Difference of Arrival (OTDOA) Positioning in 3GPP LTE, Qualcomm Technologies, Inc., June 2014. Google Scholar; 3GPP TS 36.305 v12.2.0, Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Stage 2 functional specification of User Equipment (UE) positioning in E-UTRAN (Release 12), www.3gpp.org, Dec. 2014.
• In uplink OTDOA, eNBs receive the uplink transmission from UE and determines position of UE. 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
3GPP Release 9 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)
Another new OTDOA functionality in the 3GPP R14 specification is the possibility of multiple PRS transmission configurations to enable higher positioning accuracy.
• It is known as uplink Time Difference Of Arrival. • It is assisted by eNB. The uplink transmissions from UE are received by highly sensitive receivers which will determine the time differences of arrival and hence UE position. Maximum likelihood TOA and OTDOA estimation with ﬁrst arriving path detection for 3GPP LTE system W. Xu 1*, M. Huang , C. Zhu2 and A. Dammann3 1 Intel Mobile Communications, Am Campeon 10-12, D-85579 Neubiberg, Germany 2 Technische Universität München, Arcisstr. 21, D-80333 München, Germany All results are summarized in the technical report 3GPP TR 37.857 "Study on Indoor Positioning Enhancements for UTRA and LTE", available from the 3GPP web site. We in Ericsson recently presented some of the results at the International Conference on Localization and GNSS (ICL-GNSS) conference, in the paper "Baseline Performance of LTE Positioning in 3GPP 3D MIMO Indoor User Scenarios". 8.2.1 General.
3GPP (the Third Generation Partnership Project) defines OTDOA by using the Positioning Reference Signal (PRS).  Indoor UEs will experience more
Release-15 NR provides support for RAT-independent positioning techniques and Observed Time. Difference Of Arrival (OTDOA) on LTE carriers. Release 16
OTDOA the UE requires to detect multiple neighbor cell sig- nals, these signals suffer from poor hearability. Hence, PRSs have been introduced in 3GPP LTE
Positioning Reference Signal of 3GPP LTE. José A. del (OTDoA), as complimentary methods. on OTDoA due to the use of a dedicated downlink signal for. In Observed Time Difference of Arrival (OTDOA) based positioning, the mobile station may PRS, which have been defined in 3GPP Long Term Evolution (LTE )
This paper gives an overview of algorithms for positioning a mobile phone using 3GPP-FDD mode signals.
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Observed time difference of arrival (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 Regulatory requirements on emergency call positioning have historically been based on horizontal accuracy for outdoor terminals. However, most emergency calls are made from wireless phones and from indoor locations. Therefore, the American FCC (Federal Communications Commission) launched new requirements in February of this year, to address indoor accuracy requirements in particular. 3GPP, the 3GPP TDocs (written contributions) at meeting Meeting: R1-82 - 2015-08-24 to 2015-08-28, Beijing meeting id: R1-82 (click id for more info on this meeting)
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Downlink OTDOA is specified in 3GPP Release-9.
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Kamiar Radnosrati: Research - ISY
IEEE Trans. Veh. Performance of OTDOA positioning in narrowband IoT systems. Localization in 3GPP LTE Based on One RTT and One TDOA Observation. IEEE Trans. Veh. Performance of OTDOA positioning in narrowband IoT systems. A Performance of OTDOA positioning in NB-IoT Systems 81.
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Location-Based Services: Fundamentals and Operation: Kupper
The downlink (OTDOA) positioning method makes use of the measured timing of Long Term Evolution (3GPP LTE) standard features position- ing support since PRS (NPRS) supporting downlink OTDOA based positioning. Specifically, for Jan 4, 2016 In recent 3rd generation partnership project (3GPP) long term evolution (LTE) cellular environment, multiple observed time difference of arrival LTE Positioning Methods- overview.