UE Positioning Method Selection Based on Device-Specific Criteria
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Solution Overview
Problem
Current positioning methods for user equipment (UE) in wireless networks do not consider UE-specific preferences, leading to suboptimal performance due to the lack of UE-based decision-making in selecting positioning methods.
Innovation Solution
User equipment (UE) evaluates available positioning methods based on criteria to determine a prioritized method and communicates this selection to a location server, allowing the network to accept or reject the choice, thereby enhancing the selection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network selects positioning methods without UE-specific considerations, then the positioning process is simple and fast, but the positioning performance and accuracy are suboptimal
Solution Approach 1:
The patent inverts the traditional positioning selection approach by enabling the UE (user equipment) to autonomously evaluate and select positioning methods based on its own capabilities and preferences, rather than having the network make the selection. This inversion allows the system to achieve better positioning accuracy through UE-specific optimization while maintaining reasonable complexity through standardized evaluation criteria.
Solution Approach 2:
The UE performs self-evaluation of available positioning methods by assessing its own capabilities, constraints, and preferences against the positioning method requirements. The UE autonomously determines the most suitable positioning method without requiring complex network-side analysis, thereby improving positioning accuracy while keeping the system simple.
2Reliability
If multiple positioning methods are evaluated with multiple criteria, then positioning performance is optimized, but the evaluation process becomes more complex and time-consuming
Solution Approach 1:
The UE maintains pre-configured capability information and preference criteria that are prepared in advance for positioning method evaluation. When positioning is needed, the UE can quickly perform the evaluation by comparing available methods against its pre-established criteria, reducing the time required for selection while ensuring reliable and consistent decision-making.
3Adaptability or versatility
If the UE provides detailed criteria information to the network, then the network can make better decisions for subsequent positioning requests, but the signaling overhead increases
Solution Approach 1:
The patent extracts only the essential UE preference information and criteria that are most relevant for positioning method selection, rather than transmitting all possible UE capabilities and parameters. This selective information exchange enables the network to adapt to UE preferences for subsequent positioning requests while minimizing signaling overhead by including only the most critical criteria data.
Data Source
AI summary
Methods and techniques are described for supporting location services for a user equipment (UE) in which the UE evaluate available positioning methods based on one or more criteria to determine a prioritized positioning method and provides an indication of the prioritized positioning method to a location server. The UE may additionally provide an indication of the criteria upon which the prioritized positioning method was determined. The UE may send the indication of the prioritized positioning method before the UE performs the positioning measurements and the location server may accept or reject the prioritized positioning method. The UE may alternatively send the indication of the prioritized positioning method and the criteria used in the priority determination after the UE performs the positioning measurements. The location server may use the prioritized positioning method and the criteria used in the priority determination, e.g., in subsequent positioning requests for the UE.