17791365. METHOD AND APPARATUS FOR PERFORMING SIDELINK-BASED POSITIONING simplified abstract (LG ELECTRONICS INC.)
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METHOD AND APPARATUS FOR PERFORMING SIDELINK-BASED POSITIONING
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METHOD AND APPARATUS FOR PERFORMING SIDELINK-BASED POSITIONING - A simplified explanation of the abstract
This abstract first appeared for US patent application 17791365 titled 'METHOD AND APPARATUS FOR PERFORMING SIDELINK-BASED POSITIONING
Simplified Explanation
The patent application describes a system for determining the location of a device using positioning reference signals (PRS) received from a positioning reference. Here is a simplified explanation of the abstract:
- A first device receives information about the absolute location of a positioning reference.
- The first device obtains the timing of the first PRS reception based on the PRS received from the positioning reference.
- The second device obtains the timing of the second PRS reception based on the phase difference between first reference signals (RS) received on first subcarriers from the second device.
- The third device obtains the timing of the third PRS reception based on the phase difference between second RS received on second subcarriers from the third device.
- The relative location of the positioning reference is estimated using the first, second, and third PRS reception timings.
- The location information of the first device is obtained based on the absolute location and the relative location.
Potential applications of this technology:
- Indoor positioning systems: The system can be used to accurately determine the location of devices within indoor environments, where GPS signals may not be reliable.
- Asset tracking: The technology can be applied to track the location of valuable assets within a facility or a large area.
- Navigation systems: The system can enhance navigation systems by providing more accurate location information to users.
Problems solved by this technology:
- Accurate indoor positioning: The technology addresses the challenge of accurately determining the location of devices within indoor environments where GPS signals are often weak or unavailable.
- Relative positioning: By estimating the relative location of the positioning reference, the system can provide more precise location information for the first device.
Benefits of this technology:
- Improved accuracy: By combining absolute and relative location information, the system can provide more accurate location data for the first device.
- Versatility: The system can be used in various applications and environments, making it a versatile solution for location tracking.
- Cost-effective: The technology utilizes existing PRS signals and subcarriers, reducing the need for additional infrastructure or hardware.
Original Abstract Submitted
A first device receives information related to an absolute location of a positioning reference from the positioning reference; obtains a first PRS reception timing based on a positioning reference signal (PRS) received from the positioning reference; obtains a second PRS reception timing at which a second device receives the PRS from the positioning reference based on a phase difference value between first RSs received on first subcarriers from the second device; obtains a third PRS reception timing at which a third device receives the PRS from the positioning reference, based phase difference value between second RSs received on second subcarriers from the third device; estimates a relative location of the positioning reference based on the first PRS reception timing, the second PRS reception timing, and the third PRS reception timing; and obtains location information of the first device based on the absolute location and the relative location.
