17643069. INTER-SATELLITE LINK AIDED UE POSITIONING IN NON-TERRESTRIAL NETWORK simplified abstract (QUALCOMM Incorporated)
Contents
INTER-SATELLITE LINK AIDED UE POSITIONING IN NON-TERRESTRIAL NETWORK
Organization Name
Inventor(s)
Weimin Duan of San Diego CA (US)
Mehmet Izzet Gurelli of San Diego CA (US)
INTER-SATELLITE LINK AIDED UE POSITIONING IN NON-TERRESTRIAL NETWORK - A simplified explanation of the abstract
This abstract first appeared for US patent application 17643069 titled 'INTER-SATELLITE LINK AIDED UE POSITIONING IN NON-TERRESTRIAL NETWORK
Simplified Explanation
The abstract describes a technology that improves the precision and performance of a TDOA-based UE positioning scheme associated with an NTN (Non-Terrestrial Network).
- A UE (User Equipment) receives a first PRS (Pseudo Random Sequence) from a first satellite at a specific reception time.
- The UE also receives a second PRS from a second satellite at a different reception time.
- The second satellite provides an indication of a transmission-reception time difference, which is the time delay between the second satellite transmitting the second PRS and receiving a reference signal (RS) from the first satellite.
- The UE calculates an RSTD (Received Signal Time Difference) for both the first and second PRS based on the reception times and the transmission-reception time difference.
Potential applications of this technology:
- Improved precision and performance of UE positioning in a TDOA-based scheme.
- Enhancing the accuracy of location-based services, such as navigation, asset tracking, and emergency services.
- Supporting NTN systems that rely on precise positioning information for efficient network management and resource allocation.
Problems solved by this technology:
- Tackles the challenge of accurately determining the position of a UE in a TDOA-based positioning scheme associated with an NTN.
- Addresses the issue of transmission-reception time differences between satellites and the UE, which can affect the accuracy of positioning calculations.
Benefits of this technology:
- Increased precision in determining the location of a UE, leading to improved user experience and reliability of location-based services.
- Enhanced performance of NTN systems by providing more accurate positioning information for efficient network management.
- Enables better resource allocation and optimization in NTN systems, resulting in improved network capacity and overall performance.
Original Abstract Submitted
Aspects presented herein may improve the precision and performance of a TDOA-based UE positioning scheme that is associated with an NTN. In one aspect, a UE receives, from a first satellite, a first PRS at a first reception time. The UE receives, from a second satellite, a second PRS at a second reception time and an indication of a transmission-reception time difference, the transmission-reception time difference being a difference between a time the second satellite transmits the second PRS to the UE and a time the second satellite receives an RS from the first satellite. The UE calculates an RSTD for the first PRS and the second PRS based at least in part on the first reception time of the first PRS, the second reception time of the second PRS, and the transmission-reception time difference.
