Enhanced Cell ID, E-CellID, or E-CID is a positioning feature introduced in rel9 E-UTRA (LTE radio). The UE reports to the network the serving cell ID, the timing advance (difference between its transmit and receive time) and the IDs, estimated timing and power of the detected neighbor cells.
23 Oct 2020 Release-15 NR provides support for RAT-independent positioning techniques and Observed Time Difference Of Arrival (OTDOA) on LTE
이것은 다양한 곳. 에서 송신된 라디오 신호의 도착 시간 차이를 측정하는 것에 4 OTDOA-based positioning in LTE. as in the OTDOA method. The main difference is that now all the processing is done by the network and no new functionalities 23 Oct 2020 Release-15 NR provides support for RAT-independent positioning techniques and Observed Time Difference Of Arrival (OTDOA) on LTE 12 Oct 2020 LTE provides the ability for increased levels of functionality including connectivity to Push-To-Talk over Cellular apps, live mapping, video 9 May 2014 How do Long Term Evolution (LTE) call flows work? Learn how signals are used and learn the stages of the call state in LTE call flows. LTE/3G/2G Communication Add-On. get alerts even when your IP network is down & connect the sensors to your IoT platform. Wio LTE Cat.1.
actually located. LTE Release 9 provides support for the following location technologies: Satellite Based Positioning: Autonomous and Assisted Global Navigation Satellite Systems (A-GNSS) such as GPS and GLONASS Mobile Radio Cellular Positioning: Observed Time Difference of Arrival (OTDOA) and enhanced Cell ID (eCID) Hybrid Methods: One of the most promising radio-localization methods in the LTE system is OTDoA (Observed Time Difference of Arrival), in which the position is estimated on the basis of the measurement results of time difference of the arrival of the signals to the UE (User Equipment) antenna from a set of at least three base stations, as well as on the information about both the coordinates of the base stations and about transmission timing at those base stations. OTDOA | Downlink Observed Time Difference of Arrival. • 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. LTE OTDOA Positioning Reference Signals 36.211 §6.10.4 Downlink PRS. 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 3GPP consortium responded to this need by enhancing its 4G communication standard (LTE) with positioning capabilities.
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AbstractKeywordsBiBTeXFulltext. Ylva Jading, Iana Siomina, Ari Kangas, Claes Tidestav: Enhanced WCDMA Fingerprinting Localization Using OTDOA Positioning Measurements from LTE. I worked on the thesis "Enhancements in LTE OTDOA Positioning for Multipath Environments" where I developed a novel method for indoor positioning.
Special reference signals called PRS (Positioning Reference Signal) were designed for the LTE OTDoA method. These signals are placed at a radio resource
7 Dec 2018 Reference [3] provides details of OTDOA in LTE. Enhance Cell Id (E-CID) is a feature introduced in. 3GPP Rel-9[4], in which Reference Signal LTE-M DEpLoyMEnT GuiDE To Basic FEaTurE sET rEquirEMEnTs. 8 ltE-m rElEaSE 14 fEaturES. 27. 8.1 Positioning: E-CID and OTDOA.
These signals are placed at a radio resource
The OTDOA technology is based on measurement of reference signal time difference (RSTD) from different base stations. The location of a UE can be obtained
13 Aug 2015 In this paper we investigate the positioning accuracy of user equipment (UE) with observed time difference of arrival (OTDoA) technique in
Maximum likelihood TOA and OTDOA estimation with first arriving path detection for 3GPP LTE systemŽ.
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Detection of the First Component of the Received LTE Signal in the OTDoA Method 1. Introduction. Nowadays, radio-localization technologies constitute a rapidly developing industrial branch. There is a 2. Proposed Algorithm.
In the adopted Observed Time Difference of Arrival (OTDOA) algorithm the base stations transmit so-called Positioning Reference Signals (PRS). 8.2.1 General. 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
8.2.1 General.
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4 Feb 2013 This includes observed time difference of arrival (OTDOA) based methods such as PRS as well as enhanced cell ID based positioning.
OTDOA. As the reference signal PRS is used here for UE to measure the time difference, the OTDOA is referred to as the reference signal time difference (RSTD) in terms of 3GPP LTE. Similarly, for E-CID, the so-called UE Rx–Tx time dif-ference is measured. The UE Rx–Tx time difference is defined as the difference between the UE received (Rx) Abstract: The accuracy of the observed time difference of arrival (OTDOA) in the long-term evolution (LTE) systems depends on the accuracy of the time of arrival (TOA) measurements, which are often corrupted by various errors caused by non-light-of-sight propagation, multipath interference, noise, and path detection techniques. Furthermore, signal bandwidth, channel condition, distance from the evolved node-B, and scatterer distribution are the affecting parameters on the OTDOA accuracy.
OTDOA. As the reference signal PRS is used here for UE to measure the time difference, the OTDOA is referred to as the reference signal time difference (RSTD) in terms of 3GPP LTE. Similarly, for E-CID, the so-called UE Rx–Tx time dif-ference is measured. The UE Rx–Tx time difference is defined as the difference between the UE received (Rx)
27. 8.2 Higher data LTE Positioning Methods- overview. 3GPP Release 9.
eCID l Hybrid methods l. Combination of: – Multiple satellite based methods. – Satellites and Mobile radio positioning. COMPANY RESTRICTED 4G Long Term Evolution (LTE), and it is expected to grow in the 5G standardization. show an LTE OTDoA positioning accuracy better than 20 m for 50% of the sion, resulting in higher OTDOA positioning accuracy, LTE introduced the Positioning Reference Signal (PRS). NB-IoT systems are also equipped with the 4 Feb 2013 This includes observed time difference of arrival (OTDOA) based methods such as PRS as well as enhanced cell ID based positioning.