Publikationer 2012 - Institutionen för informationsteknologi

Vecka 49, 2019 Starta Roundup Vivo iQOO Neo, Motorola

7 028,00 kr Black Edition, pekskärmsmobil, dual-SIM, 4G LTE, 128 GB, microSDXC slot, GSM, 4.5", 1620 x 1080 pixlar (433 ppi), IPS, RAM 6 GB (8 MP främre  Fading Channels -- Performance of Enhanced LTE OTDOA Positioning Approach Through Nakagami-m Fading Channel -- Chaotic ZKP based Authentication  Beamforming för LTE FDD multipelantennsystem OTDOA-baserad positionering för NB-IoT Quantization Noise Shaping for LTE Fronthaul Downlink Enhanced WCDMA fingerprinting localization using OTDOA positioning measurements from LTE . Torbjörn Wigren, Ylva Jading, Iana Siomina,  "Localization in 3GPP LTE Based on One RTT and One TDOA Observation", Fredrik Gunnarsson, Fredrik Gustafsson, "Performance of OTDOA Positioning  av en av nätverksbaserad och telefonbaserad teknik för platsbestämning. Sådana system inkluderar Google Maps, liksom, LTE: s OTDOA och E-CellID. Mobiltelefonspårning är en process för att identifiera placeringen av en Sådana system inkluderar Google Maps, liksom, LTE: s OTDOA och. Integrerat X15 LTE-modem; Cat 15/13 hastigheter på upp till 800 Mbps nedåt: Support: Assisted GPS, OTDOA (LTE-baserad positionering), Beidou, Galileo,  Fredrik, Gustafsson, Fredrik och Hendeby, Gustaf, Localization in 3GPP LTE Performance of OTDOA Positioning in Narrowband IoT Systems [Elektronisk  Netto: GSM (B2 / 3/5/8), WCDMA (B1 / 5/8), FDD-LTE (B1 / 3/5/7/8/20), TDD-LTE (B38 / 40/41) Navigering: A-GPS, GLONASS, Beidou, Galileo, OTDOA.

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It is Arduino and Grove compatible  If your Wio LTE is currently connected to your computer in DFU mode, you can switch to Normal mode without unplugging the USB cable by simply pressing the   22 Sep 2018 ØCheck value of pmBadCovEvalReport (if MCPC enabled, need to check pmCriticalBorderEvalReport). If this counter is pegging high in  23. Jan. 2020 Allerdings können Otelo Kunden nicht das gesamte Vodafone Netz nutzen. Es gibt an der Stelle einige gravierende Einschränkungen und LTE ist  In currently deployed LTE networks, the User Equipment (UE) position is The positioning accuracy in OTDOA method depends on various factors e.g., network. For example, the UE can use standalone GNSS based on satellite systems, AGNSS with network assistance, LTE OTDOA relying on LTE cellular radio signals,  30 Jan 2019 In OTDOA, an IoT device measures the time difference between specific signals from several the LTE base stations (eNodeB) and reports these  av K Radnosrati · 2017 · Citerat av 15 — A well known technique to model a wireless channel in LTE is to use a (Finite Impulse Response) FIR filter.

Claes Tidestav - dblp

The work in [9] 2016-06-29 · In addition, we propose an LTE OTDOA positioning technique that compensates the mean TOA offset in the TDOA measurements before applying a positioning algorithm, and we demonstrate the performance improvement using Monte Carlo simulations. In this paper, we do not include OTDOA errors due to the network synchronization and intercell interference.

Location Based Service in Cellular Networks: from GSM to 5G NR

downlink oTdoA is a handset-based method, where the  as for LTE OTDOA method, a new physical signal- position reference signal (PRS ) [7] dedicated for positioning is introduced to enhance positioning. Because of scalable measurement bandwidth in long term evolution (LTE), the performance of reference signal time difference (RSTD) suffers from small  Special reference signals called PRS (Positioning Reference Signal) were designed for the LTE OTDoA method. 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.

Home About ION The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference (RSTD) reports based on the Time of Arrival (TOA) for a Positioning Reference Signal (PRS). In the current reporting format, only one RSTD for each base station is considered, but for indoor environments this is easily biased due to fading and multipath issues, resulting in a Non-Line of Sight (NLOS) bias. 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) The 3GPP consortium responded to this need by enhancing its 4G communication standard (LTE) with positioning capabilities. In the adopted Observed Time Difference of Arrival (OTDOA) algorithm the base stations transmit so-called Positioning Reference Signals (PRS).
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A Novel Weighting Method for Multiple OTDOA based Positioning in 3GPP LTE System Han Jun Kim Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon-si, Gyunggy-do, Korea +82-31-290-7207 Kyunghoon Lee Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon-si, Gyunggy-do, Korea +82-31-290-7207 Hyung-Jin Choi Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon-si, Gyunggy-do Evaluating OTDOA Technology in Support of PS-LTE As mobile device usage becomes more ubiquitous, there is an increasing need for location accuracy, especially in the event of an emergency. 2017-05-09 · OTODA LTE Nakagami-m Adaptive OTDOA AWGN Adaptive filters Fading channels Positioning This is a preview of subscription content, log in to check access.

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. W. Xu1*, M. Huang1, C. Zhu2 and A. Dammann3. In recent 3rd generation partnership project (3GPP) long term evolution (LTE) cellular environment, multiple observed time difference of arrival (OTDOA) based   6 Jun 2014 Observed Time Difference Of Arrival (OTDOA) is a downlink positioning method in LTE. Rel-9.
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Kamiar Radnosrati - dblp

An error analysis of OTDOA is reported in [7]. Baseline performance based on 3GPP 3D MIMO OTDOA — This method uses the measured timing of downlink signals received from multiple eNBs to locate the user device in relation to neighboring eNBs. 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. 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.

PDF Time of Flight Estimation for Radio Network Positioning

Computer Science. 2016. TLDR. By using existing radio network  Localization in 3GPP LTE Based on One RTT and One TDOA Observation. IEEE Trans.

Uplink OTDOA? downlink oTdoA is a handset-based method, where the  as for LTE OTDOA method, a new physical signal- position reference signal (PRS ) [7] dedicated for positioning is introduced to enhance positioning. Because of scalable measurement bandwidth in long term evolution (LTE), the performance of reference signal time difference (RSTD) suffers from small  Special reference signals called PRS (Positioning Reference Signal) were designed for the LTE OTDoA method. 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.