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Wireless positioning systems

A wireless signal and wireless receiver technology, which is applied in radio wave measurement systems, positioning, baseband system components, etc., can solve the problems of not being able to indicate the relative orientation of the equipment, and not reporting the indoor positioning accuracy

Active Publication Date: 2017-05-10
ORIGIN WIRELESS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a system may be able to estimate the distance of the device from the access point, but may not be able to indicate the relative orientation of the device, i.e., whether the device is in front of or behind or to the side of the access point
In some cases, signals from multiple wireless access points can be used to estimate a device's location using triangulation, but such schemes have not reported indoor positioning accuracy better than a few meters

Method used

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Embodiment Construction

[0113] The present invention relates to wireless systems, devices and methods that can utilize location-specific wireless signatures to improve communication, location, identification and security systems, among others. The technology exploits the rich multipath in wireless signal propagation, and can also exploit the physics of resonant interactions with the environment to focus signal energy to specific locations. The techniques and methods described herein can improve the resolution of indoor positioning systems, provide detection of any physical change within a given environment, and can be used to monitor discrete movements of physical objects within a space with a spatial resolution of 5 cm or less . Additionally, the technology can enable multiple connected devices within a wireless network to communicate with a physical security at or near full data rate with minimal impact from other devices or other wireless networks present within the same physical spectrum. This t...

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Abstract

A time-reversal positioning system includes a storage storing first data representing channel impulse responses derived from probe signals sent from a plurality of positions and second data representing coordinates of the positions. A data processor determines a position of a terminal device based on the stored channel impulse responses and a time-reversed signal determined based on a time-reversed version of a channel impulse response that is estimated based on a channel probing signal sent from the terminal device.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Patent Application 14 / 605,611, filed January 26, 2015, which claims U.S. Patent Application 62 / 025,795, filed July 17, 2014 and filed in 2014 Priority to U.S. Patent Application 62 / 069,090, filed October 27. This application also claims priority to US Patent Application 62 / 148,019, filed April 15, 2015. The entire disclosure of the above application is incorporated herein by reference. technical field [0003] The present disclosure relates to collecting and processing location specific wireless waveforms for use in wireless communication, positioning, security and identification systems, components, methods and apparatus. Background technique [0004] One challenge that can be addressed in the future using emerging wireless signaling protocols is high-speed and efficient wireless data transmission to and from a large number of potentially closely spaced devices. Th...

Claims

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Application Information

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IPC IPC(8): H04L25/02
CPCG01S5/0054
Inventor 陈彦H-Q·赖Y·韩C·陈Z-H·吴刘国瑞
Owner ORIGIN WIRELESS
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