Uplink Timing Error Group Reporting for Positioning Accuracy
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Solution Overview
Problem
Current techniques for reporting uplink transmission timing errors in wireless communication devices are inadequate, particularly in dynamic environments where timing errors can vary over time, affecting positioning accuracy.
Innovation Solution
A method is introduced that involves obtaining measurement time durations for assessing uplink transmission timing errors, transmitting positioning reference signals during these durations, and providing a timing error group report that indicates changes in parameter values associated with timing error groups. This report is based on measurements of uplink transmission timing errors and is used to configure and provide advanced TEG reports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If timing error measurements are performed continuously to maintain positioning accuracy, then positioning accuracy is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent implements dynamic measurement time duration configuration, where the network can adjust the measurement window size based on timing error variation characteristics. When timing errors are stable, measurements are performed less frequently; when variations are detected, measurement frequency increases automatically, optimizing the balance between accuracy and complexity
Solution Approach 2:
The system changes measurement parameters (time duration, resource sets) based on observed timing error patterns. The network configures different measurement time durations and resource sets dynamically, adapting the measurement strategy to current conditions rather than using fixed continuous measurements
2Device complexity
If timing error measurements are performed less frequently to reduce complexity, then device complexity is reduced, but positioning accuracy deteriorates due to timing error variations over time
Solution Approach 1:
The UE reports timing error group information to the network, which uses this feedback to adjust future measurement configurations. The network observes timing error patterns over time and configures appropriate measurement time durations and resource sets based on the reported variations, creating a closed-loop system that adapts to actual conditions
3Measurement precision
If comprehensive timing error reports are provided to eliminate all timing errors, then positioning accuracy is improved, but loss of time increases due to extensive measurement and reporting
Solution Approach 1:
The patent extracts only the essential timing error information that actually impacts positioning accuracy. Instead of reporting all possible timing error parameters, the system identifies and reports only the critical timing error group identifiers and variations, reducing reporting overhead while maintaining effectiveness
Solution Approach 2:
The system performs measurements on selected resource sets rather than all available resources. The network configures specific measurement time durations that cover the critical measurement needs without requiring exhaustive measurement of all possible timing error sources, achieving sufficient accuracy with reduced time investment
Data Source
AI summary
Various examples of the disclosure generally relate to timing error groups and timing error group reports of transmission timing errors, specifically uplink transmission timing errors of uplink positioning reference signals. Thereby, high-accuracy positioning of a wireless communication device is enabled.