UE Positioning Measurement Timelines for Low-Latency Reporting
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Solution Overview
Problem
Existing wireless communication systems lack enhancements for configuring UE processing timelines to meet stringent latency and accuracy requirements in RAT-dependent positioning, particularly for UE-assisted and UE-based positioning methods, leading to inefficiencies in processing and reporting of positioning-related reference signals.
Innovation Solution
The solution introduces mechanisms to dynamically manage UE processing timelines based on UE capabilities, prioritize measurements, and utilize uplink configured grants to reduce latency, while optimizing reporting to location servers by dropping obsolete measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional positioning measurement configurations are used, then the system maintains simplicity in implementation, but positioning latency exceeds the stringent requirements of Release 17 3GPP specifications
Solution Approach 1:
The patent implements dynamic positioning measurement configurations where the network can adjust measurement timing, reporting intervals, and processing requirements based on current conditions. This allows the system to optimize for low latency when needed while maintaining flexibility in handling different positioning scenarios and UE capabilities, directly addressing the contradiction between reducing positioning latency and managing configuration complexity.
Solution Approach 2:
The patent segments the positioning measurement and reporting process into distinct configurable phases including measurement timing configurations, reporting trigger conditions, and processing timeline definitions. By dividing the overall positioning procedure into manageable segments with independent configuration parameters, the system can optimize specific phases for low latency without overwhelming complexity in the entire positioning framework.
2Reliability
If all positioning measurements are processed and reported, then measurement completeness is maximized, but processing time and latency increase
Solution Approach 1:
The patent implements selective measurement reporting where the UE processes and reports only the most relevant positioning measurements based on configured criteria, such as measurement quality thresholds, timing requirements, and positioning method priorities. This partial action approach ensures that critical positioning information is captured and reported within latency requirements, while less critical measurements can be deferred or omitted, balancing completeness with processing time constraints.
Solution Approach 2:
The patent enables dynamic adjustment of measurement processing parameters including reporting thresholds, measurement selection criteria, and processing priority levels. By changing these parameters based on current positioning requirements, UE capabilities, and network conditions, the system can optimize the balance between measurement completeness and processing time, ensuring reliable positioning without excessive latency.
3Reliability
If uplink resources are allocated for every positioning report, then reporting reliability is ensured, but resource overhead and system complexity increase
Solution Approach 1:
The patent enables positioning measurement reports to be transmitted using existing uplink resource structures and channels that are already configured for other purposes, such as uplink shared channels configured for data transmission. This multi-functional approach allows positioning reports to utilize already-allocated uplink resources without requiring dedicated positioning-specific resource allocations, thereby ensuring reliable report delivery while minimizing additional resource overhead and system complexity.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for configuring positioning measurements and reports. One apparatus in a mobile communication network includes a transceiver that receives, from a mobile wireless communication network, a positioning configuration defining a positioning configuration timeline and a measurement and processing time window for the UE The apparatus includes a processor that performs at least one positioning measurement for the UE according to the positioning processing timeline in response to receiving the positioning configuration. The transceiver sends a positioning measurement report comprising the at least one positioning measurement and measurement timeline performed of the at least one positioning measurement within the configured time window from the UE to the mobile wireless communication network.