Multi-UE Positioning Using Shared Terminal Capability Information
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Solution Overview
Problem
Conventional positioning methods for multiple user equipments (UEs) in close proximity result in significant signaling overheads due to network-side positioning of each UE independently.
Innovation Solution
A method where a first terminal shares its capability information, allowing its positioning result to determine the positioning result of other terminals, reducing the need for network-side measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network side independently positions each UE, then positioning accuracy is maintained, but signaling overhead increases significantly
Solution Approach 1:
The patent merges the positioning measurements of multiple UEs by using the first UE's positioning result to determine the positioning results of second UEs. This combining approach reduces the need for separate network-side measurements for each UE, thereby maintaining positioning accuracy while significantly reducing signaling overhead between the network and multiple UEs.
Solution Approach 2:
The first UE's positioning capability serves a universal function by enabling positioning determination for multiple second UEs. The capability information of the first UE is reused to derive positioning results for other terminals, making a single measurement serve multiple purposes and reducing overall network signaling requirements.
2Measurement precision
If the network side performs positioning measurement on each terminal, then individual positioning accuracy is ensured, but network resource consumption increases
Solution Approach 1:
The patent combines positioning measurements by using the first UE's positioning result to determine positioning results for multiple second UEs. This merging strategy ensures that individual positioning accuracy is maintained through the derived results while significantly reducing network resource consumption by avoiding redundant separate measurements for each terminal.
Solution Approach 2:
The positioning result of the first UE is copied and used to determine the positioning results of second UEs. This copying approach allows the network to leverage existing measurement data rather than performing new measurements, thereby ensuring positioning accuracy while reducing network energy consumption and resource usage.
3Productivity
If capability information is shared between terminals, then positioning efficiency improves, but system complexity increases
Solution Approach 1:
The patent introduces capability information as an intermediary element that enables efficient positioning determination. By sharing capability information between terminals, the system allows the first UE's positioning result to be used for determining second UE positioning results, thereby improving positioning efficiency while managing system complexity through structured information exchange.
Data Source
AI summary
A positioning method of this application, a plurality of terminals send respective capability information to an LMF or an access network device, and the LMF or the access network device sends a plurality of pieces of second information to the plurality of terminals. The second information indicates that a first positioning result of a first terminal is used to determine a positioning result of at least one second terminal, and the plurality of terminals include the first terminal and the at least one second terminal.