Angular Validity Region for Timing Error Group Reporting
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Solution Overview
Problem
Current mobile and wireless telecommunication systems face challenges in accurately reporting timing errors due to phase center offset variations in user equipment antennas, which affect positioning accuracy, especially in applications requiring centimeter-level precision.
Innovation Solution
The method involves calculating an angular validity region around a reference direction for which timing error groups are valid, and transmitting this information along with a reference direction identifier to a location management node, allowing for enhanced timing error group reporting and improved positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If timing error groups are reported without angular validity indication, then the reporting process is simple, but positioning accuracy deteriorates due to phase center offset variations
Solution Approach 1:
The patent segments the timing error information by angular validity regions. Instead of reporting a single timing error group for all directions, the system divides the angular space into multiple validity regions (e.g., different azimuth/elevation ranges) and reports separate timing error groups for each region. This segmentation allows the location management node to select the appropriate timing error group based on the actual angular direction, thereby improving positioning accuracy while maintaining manageable reporting complexity through structured regional division.
Solution Approach 2:
The patent introduces angular dimensions (azimuth and elevation angles) to the timing error reporting framework. By adding these angular validity indicators as new dimensions to the reporting structure, the system enables the location management node to differentiate timing errors based on spatial direction. This dimensional expansion transforms a scalar timing error value into a spatially-aware parameter, significantly improving positioning accuracy without overwhelming complexity through systematic angular region management.
2Measurement precision
If angular validity region calculation is performed, then timing error group accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary calculation of angular validity regions and associates timing error groups with specific angular ranges in advance. By pre-establishing the relationship between angular directions and applicable timing error groups, the system avoids real-time calculation overhead during positioning operations. The location management node can directly query pre-computed timing error groups based on measured angular parameters, thereby maintaining high timing error accuracy while minimizing processing time loss.
3Measurement precision
If multiple timing error groups are reported for different angular regions, then positioning precision is improved, but information processing complexity increases
Solution Approach 1:
The patent segments timing error information into multiple groups organized by angular validity regions. Each segment corresponds to a specific directional range with its own timing error characteristics. This segmentation enables the location management node to process only the relevant timing error group for the actual measurement direction, rather than handling all possible groups simultaneously. The structured segmentation reduces information processing complexity through selective application while maintaining high positioning precision.
Solution Approach 2:
The patent applies local quality by providing direction-specific timing error groups tailored to each angular region. Instead of using a uniform timing error value for all directions, the system offers locally optimized timing error groups that reflect the specific phase center offset characteristics of each angular region. This local customization improves positioning precision for each directional measurement while the modular structure keeps overall data processing manageable through region-based organization.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for TEG reporting with angular validity indication. One method may include a UE calculating an angular validity region around a reference direction for which at least one timing error group is valid, and transmitting at least one of the timing error groups comprising an indication about the angular validity region and a reference direction identifier associated with the reference direction to a location management node.