Systems and methods for positioning with channel measurements

A channel measurement, channel technology, applied in the field of communication

Pending Publication Date: 2021-09-28
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many conventional techniques do not use the information in the NLOS signal for localization

Method used

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  • Systems and methods for positioning with channel measurements
  • Systems and methods for positioning with channel measurements
  • Systems and methods for positioning with channel measurements

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Embodiment Construction

[0024] Many traditional techniques do not use information in the NLOS signal for positioning purposes. Instead, conventional systems typically treat multipath signals as a source of positioning errors and / or a decrease in signal quality, and attempt to mitigate the effects of multipath. Since the multipath signal is reflected, the multipath signal will experience the delay relative to the LOS transmit signal. The term "NLOS channel tap" can refer to a multipath signal that meets certain specified delay criteria relative to the LOS signal corresponding to (e.g., from the same WAP). The term "NLOS" may refer to the channel of the signal received (e.g., by the UE). A large number of NLOS signals may occur in the urban canyon with a large number of structures or indoor spaces such as an internal wall. Therefore, techniques that advantageously positioned with information in NLOS signals, since NLOS taps are typically produced by reflection of still objects such as walls, buildings, e...

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Abstract

Position determination of user equipment (UE) is supported using channel measurements obtained for Wireless Access Points (WAPs), wherein the channel measurements are for Line of Sight (LOS) and Non-LOS (NLOS) signals. Based on WAP almanac information and the channel measurements, channel parameters indicative of positions of signal sources relative to a first position of UE may be determined. Using the first position of the UE and an association of the signal sources with corresponding channel parameters, a second position of the UE may be determined. The position of the UE may be a probability density function. Additionally, position information for signal sources may be determined, such as a probability density function, as well as signal blockage probability and an antenna geometry and the WAP almanac information may be updated accordingly.

Description

[0001] Cross-reference [0002] The present invention is submitted by US Temporary Application No. 62 / 807, 487, filed on February 19, 2019, will be submitted to "SYSTEMS AND Methods for Positioning" Systems and Methods for Positioning on January 30, 2019 The US Non-Primary Patent Application No. 16 / 776, 871, is assigned to this patent application, and all of its content is explicitly incorporated herein by reference. Technical field [0003] The present disclosure generally relates to communication, and more particularly to techniques for supporting location determination of the user equipment (UE). Background technique [0004] Typical positioning solutions in wireless networks depends on technologies based on trial measurement or variants thereof. The term "position" and "locations" can be interchangeable here. In the three-sided measurement, the location of the user equipment (UE) can be determined by determining the distance between the UE and the plurality of spatially separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02
CPCG01S5/0218G01S5/0236G01S5/0242G01S5/02521G01S5/0273G01S5/0278H04W64/00H04B17/27H04B7/02G01S19/46H04W84/12
Inventor L.弗拉里T.俞S.马利克
Owner QUALCOMM INC
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