Carsten Fritsche: Publications - ISY - Linköpings universitet

Skåne Sweden Escort Badoo Dejting Globen Thai Massage Älvsjö

ARM Cordio-N IP for NB-IoT will provide the wide area and low power connectivity required for … Following are the applications of OTDOA: • It is used as positioning method in all the LTE enabled mobile phones. • It is used for E911 emergency services in the USA. • It is used for various commercial applications which include maps, location based advertising on the mobile as per interest of the users and search history. OTDOA is a suitable positioning method candidate as it is based on broadcast signals and so enables good scalability which is required for massive IoT scenarios. Considering the different use cases, radio environments, device capabilities and supported bandwidths, NB-IoT and feMTC could properly support the positioning requirements. The OTDOA positioning method makes use of the measured timing of downlink signals received from multiple TPs, comprising eNBs, ng-eNBs and PRS-only TPs, at the UE. The UE measures the timing of the received signals using assistance data received from the positioning server, and the resulting measurements are used to locate the UE in relation to the neighbouring TPs. I wrote about the 5G Americas white paper titled, "The 5G Evolution: 3GPP Releases 16-17" highlighting new features in 5G that will define the next phase of 5G network deployments across the globe. 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.

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. For the multiple OTDOA based positioning, several weighted average method can be utilized by applying equal gain weighting or received power of signals. 3 Feb 2015 (SDR) receiver is developed for OTDoA positioning in LTE. A preliminary scenario with four synchronized base stations is used to validate the for OTDOA. 36.133 · 0433, RSTD Measurement Requirements for OTDOA 36.133 · 0726, Requirements for reporting criteria with positioning measurements .

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.

‪Axel Berg‬ - ‪Google Scholar‬

summarize the designs of OTDOA positioning reference signals, and present simulation Performance of OTDOA positioning in narrowband IoT systems. K Radnosrati, G Hendeby, C Fritsche, F Gunnarsson, F Gustafsson. 2017 IEEE 28th Annual Enhancements in LTE OTDOA Positioning for Multipath Environments The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference 1.

Qualcomm Snapdragon 7c 8nm och Snapdragon 8c 7nm

OTDOA is a feature to determine the location of a User Equipment based on radio access network information. Downlink OTDOA assistance provides the UE the cell PRS position for intra or inter-frequency RSTD measurements.

2020-04-01 ETSI 3GPP TS 37.355 version 16.1.0 Release 16 1 ETSI TS 137 355 V16.1.0 (2020-07) Reference RTS/TSGR-0237355vg10 Keywords 5G,LTE ETSI 650 Route des Lucioles ETSI TS 136 355 V10.0.0 (2011-01) Technical Specification LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Positioning Protocol (LPP) (3GPP TS 36.355 version 10.0.0 Release 10) ETSI TS 138 305 V15.0.0 (2018-09) 5G; NG Radio Access Network (NG-RAN); Stage 2 functional specification of User Equipment (UE) positioning in NG-RAN (3GPP TS 38.305 version 15.0.0 Release 15) 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 ).
Schema releasy

"Improving the Performance of OTDOA based Positioning in NB-IoT Systems". IEEE GLOBECOM, Singapore, Dec. 2017. IEEE - Institute of Electrical and Electronics Engineers Inc. 2018, 1-7.

OTDOA is a feature to determine the location of a User Equipment based on radio access network information Downlink OTDOA assistance provides the UE the cell PRS position for intra or inter-frequency RSTD measurements Positioning reference signals are transmitted on antenna port 6 The PRS sequences use QPSK modulation (2 bits per symbol) Following are the applications of OTDOA: • It is used as positioning method in all the LTE enabled mobile phones.
Invånare karlskoga

sami o skala
skatteverket servicekontor mariestad
pia bergmann bonding
kalle blomberg
svensk elmix co2 kwh
dyslexi fast i matte

observed time difference of arrival - idle period downlink

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. Se hela listan på hindawi.com to positioning via OTDOA method can be found in [1]. The positioning accuracy in OTDOA method depends on various factors e.g., network deployment, signal propagation condition, and properties of PRS. For 4G cellular (LTE) indoor users, positioning accuracy can be around 50 meters [2].

Lennart starkenberg huskvarna
skolavslutning åland

Performance of OTDOA Positioning in Narrowband IoT - DiVA

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.

‪Kamiar Radnosrati‬ - ‪Google Scholar‬

In this context, we have developed a new positioning approach called Adaptive Observed Time Difference of Arrival (A-OTDOA) which is compatible with both 3G and 4G user equipment and respond to the emergency calls accuracy criteria. (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 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.

With today’s technology, the User Equipment (UE) position is determined based on a combination of cell identity, OTDOA and A-GNSS information from the UE. 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. Hu, Sha et al. "Improving the Performance of OTDOA based Positioning in NB-IoT Systems". IEEE GLOBECOM, Singapore, Dec. 2017.