Determining positions based on dynamic path loss index (PLE) and intercept (INT) estimates

A path loss, location-specific technology used in location-based services, environment-specific services, positioning, and other directions

Pending Publication Date: 2022-06-17
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, indoor environments are generally not suitable for position determination via GPS

Method used

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  • Determining positions based on dynamic path loss index (PLE) and intercept (INT) estimates
  • Determining positions based on dynamic path loss index (PLE) and intercept (INT) estimates
  • Determining positions based on dynamic path loss index (PLE) and intercept (INT) estimates

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Embodiment Construction

[0027] Existing solutions for locating wireless devices typically utilize constant or static values ​​of the path loss parameter. However, the path loss function (PLF) parameters vary based on the time and location of the wireless device. For example, a device moving through a building will change its position relative to walls and other objects between the wireless device and the wireless transmitter. For example, when the wireless device is in the first position, the signal from the wireless transmitter may need to pass through and / or be reflected by a series of objects to reach the wireless device. At the second location, the signal may need to pass through and / or be reflected by another series of objects to reach the wireless device. These differences in the signal paths taken by the signals generated by the wireless transmitter and received by the wireless device result in different path losses between the two devices depending on the location of the wireless device. Th...

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Abstract

The disclosure relates to determining positions based on dynamic path loss index (PLE) and intercept (INT) estimates. There is provided a method of deriving location information of a wireless device, comprising deriving a location of the wireless device and at least one path loss function parameter of temporal and positional variation in a continuous domain. Coordinates and parameters are derived based on signal strength measurements made at a wireless device, as well as measured signals originating from a plurality of wireless transmitters, such as access points. The derived path loss function parameters may include one or more of a path loss index parameter, an intercept parameter, a receiver antenna gain parameter, a transmitter antenna gain parameter, or a transmit power parameter.

Description

[0001] This application claims the benefit of US Application No. 17 / 453,752, filed November 5, 2021, which claims the benefit of US Provisional Application No. 63 / 125,595, filed December 15, 2020, the entire contents of which are incorporated by reference in their entirety. into this article. technical field [0002] The present disclosure generally relates to location function determinations based on received radio signals. Background technique [0003] Knowing the location of a wireless terminal is useful in a variety of applications. In some examples, the wireless terminal location is obtained via a satellite positioning receiver, such as a global positioning system (GPS) receiver integrated into the wireless terminal. However, indoor environments are generally not suitable for location determination via GPS. Therefore, when the wireless device is located indoors, a variety of other techniques are used to locate the wireless device. Many of these techniques rely on sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/33H04W64/00
CPCH04W4/025H04W4/33H04W64/006G01S5/0278G01S5/0252H04W4/029H04W24/08
Inventor M·佐胡里安R·D·贝里
Owner JUMIPER NETWORKS INC
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