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 positioning feature introduced in rel9 E-UTRA. It's a multilateration method in which the User Equipment 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 based on these time differences and knowledge of the enodeBs locations calculates the UEs' position.

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".

Otdoa positioning

Baseline performance based on 3GPP 3D MIMO of arrival (OTDOA) based positioning for Narrowband Internet of Things (NB-IoT), which will be integrated as a part of the 3rd Generation Partnership Project (3GPP) Long ermT Evolution TE) release 14. 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.

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]. For upcoming 5G

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.

We focus on OTDOA, which is a downlink based positioning method. summarize the designs of OTDOA positioning reference signals, and present simulation

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 ).

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. Positioning support in LTE was introduced in the second release, Rel. 9, in 2009, and improvements have been made in later releases. 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.
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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 Positioning support in LTE was introduced in the second release, Rel. 9, in 2009, and improvements have been made in later releases.

User Plane In parallel with the 3GPP Study Item on Indoor Positioning which mainly was based on downlink OTDoA, this thesis studies on the potential use of UTDoA in LTE The downlink (OTDOA) positioning method makes use of the measured timing of downlink signals received from multiple eNode Bs at the UE. The UE measures LTE Positioning Methods- overview.
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Kamiar Radnosrati;Gustaf Hendeby;Carsten. Fritsche;Fredrik Gunnarsson;Fredrik Gustafsson;. Performance of OTDOA Positioning in. Narrowband IoT Systems.

61 Figure 8-15: Network with low power RRHs within the macrocell coverage.. 62 of arrival (OTDOA) based positioning for Narrowband Internet of Things (NB-IoT), which will be integrated as a part of the 3rd Generation Partnership Project (3GPP) Long ermT Evolution TE) release 14. ARM Cordio-N IP for NB-IoT will provide the wide area and low power connectivity required for low-end IoT devices. The used positioning technique is known as observed time difference of arrival (OTDOA), because the device measures the arrival time of several transmitted reference signals.

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av K Radnosrati · 2017 · Citerat av 15 — OTDOA positioning in legacy LTE systems is widely stud- ied in the literature. For example, [6] uses real measurements and investigates channel impacts on positioning accuracy. An error analysis of OTDOA is reported in [7].

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. OTDOA positioning in legacy LTE systems is widely studied in the literature. For example, [6] uses real mea-surements and investigates channel impacts on position-ing accuracy. An error analysis of OTDOA is reported in [7].