UE Positioning Capability Updates for Adaptive Measurement Accuracy
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Solution Overview
Problem
Existing wireless communication systems fail to dynamically adjust positioning measurements based on changes in user equipment (UE) capabilities during a positioning session, leading to suboptimal location determination.
Innovation Solution
The UE indicates capability changes to the network, allowing the network to adjust assistance data and parameters accordingly, enabling dynamic refinement of positioning measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE uses initial capabilities information for positioning measurements throughout the session, then the positioning process is simple and stable, but the positioning accuracy deteriorates when UE capabilities change
Solution Approach 1:
The patent implements dynamic capability indication where the UE can update its capabilities information during the positioning session. The location server receives updated capabilities information from the UE and adjusts positioning measurements accordingly, allowing the system to adapt to changing UE capabilities rather than relying on static initial capabilities
Solution Approach 2:
The patent establishes a feedback mechanism where the UE monitors its own capabilities during the positioning session and sends updates to the location server when capabilities change. The location server then uses this feedback to adjust the positioning measurements, creating a closed-loop system that maintains accuracy despite capability changes
2Measurement precision
If the network adjusts assistance data based on updated capabilities, then positioning accuracy improves, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent extracts only the changed capabilities information from the full capabilities set and transmits only these specific updates to the location server. This selective transmission approach reduces signaling overhead compared to sending complete capabilities information repeatedly, while still enabling accurate adjustments to positioning measurements
Data Source
AI summary
Methods, systems, computer-readable media, and apparatuses for UE positioning are described. In some embodiments, a UE is configured to perform positioning measurements according to capabilities of the UE. Over time, the capabilities may change. Based on a change, the UE reports, to a location server, an indication that the capabilities have changed. This indication can include updated capabilities information or an error related to previously reported capabilities information and/or availability of the updated capabilities information. In turn, the location server may indicate, to the UE, updated assistance data and/or a request for updated location information, such that next position measurements performed by the UE may be based on the updated assistance data and/or the request.