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Angle of Arrival Positioning System for Tracking Objects

An angle, wireless system technology, applied in the field of wireless communication and wireless network systems, can solve problems such as high cost, low accuracy, huge effort, etc., to achieve the effect of improving positioning accuracy

Active Publication Date: 2021-11-05
QUALCOMM TECHNOLOGIES INC
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  • Application Information

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Problems solved by technology

Furthermore, in the case of active DAS, the best accuracy (lower limit of error) is limited to 50 meters
Finally, Chen et al. do not address the impact of multipath on positioning accuracy in indoor environments, which are most severe (compared to outdoors) and in many cases lead to positioning errors much larger than claimed More (2 times -4 times)
[0026] The modifications made by Chen et al. for indoor wireless network antenna systems are not always feasible due to the enormous effort and cost involved in upgrading existing systems
Furthermore, in the case of an active DAS, the best theoretical accuracy is only 50 meters, and in practice this accuracy will be significantly lower due to RF propagation phenomena involving multipath

Method used

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  • Angle of Arrival Positioning System for Tracking Objects
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  • Angle of Arrival Positioning System for Tracking Objects

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Embodiment Construction

[0062] Reference will now be made in detail to the preferred embodiments of embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0063] Embodiments of the present invention relate to a method and system for RF-based identification, tracking and localization of objects, including RTLS. According to an embodiment, the methods and systems employ narrow bandwidth ranging signals. The described embodiment operates in the VHF band, but can also be used in the HF, LF and VLF bands as well as the UHF band and higher frequencies. It employs a multipath mitigation processor. The use of a multipath mitigation processor improves the accuracy of tracking and positioning performed by the system.

[0064] Embodiments include a small, very portable base unit that allows a user to track, locate and monitor multiple people and objects. Each unit has its own ID. Each unit broadcasts an RF signal with its ID and each unit is able to send back a retur...

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Abstract

Systems and methods are described for determining a location of a user equipment (UE) within a wireless network using a reference signal of the wireless network. The disclosed systems and methods use multiple in-phase and quadrature (I / Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. The reference signal within the signal is identified from each of the receive channels based on the received reference signal parameters. An angle of arrival between a baseline of the two or more antennas and incident energy of the UE to the two or more antennas is determined based on the reference signals identified from each receive channel. The position of the UE is then calculated using the angle of arrival. The angle of arrival may be a horizontal angle of arrival and / or a vertical angle of arrival.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the following application under 35 U.S.C. §119(e): An invention filed on October 8, 2015 entitled Angle of Arrival (AOA) Location Method and System for Locating and Tracking Objects Using Reduced Attenuation RF Techniques (ANGLE OF ARRIVAL (AOA) POSITIONING METHOD AND SYSTEM FOR POSITIONAL FINDINGAND TRACKING OBJECTS USING REDUCED ATTENUATION RF TECHNOLOGY) No. 62 / 239,195 U.S. provisional application; the title of the invention submitted on February 2, 2016 is "Using Reduced Attenuation RF Technology Positioning and Finding and Tracking Object Angle of Arrival (AOA) Positioning Method and System (ANGLE OF ARRIVAL (AOA) POSITIONING METHODAND SYSTEM FOR POSITIONAL FINDING AND TRACKING OBJECTS USING REDUCEDATTENUATION RF TECHNOLOGY) "U.S. Provisional Application No. 62 / 290,087, which is cited in its entirety way incorporated into this article. [0003] This application is submitted on A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/80H04W64/00G01S3/82
CPCG01S5/10H04W4/023H04W4/80H04W4/029H04W64/006G01S3/82H04W4/021H04W4/33G01S5/06G01S5/12G01S3/50
Inventor 杜鲁曼·普雷瓦特
Owner QUALCOMM TECHNOLOGIES INC
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