Aggregated Positioning Signal Processing for Low-Latency 5G Accuracy
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Solution Overview
Problem
Existing positioning methods in 5G wireless networks face challenges in efficiently determining the location of mobile devices, particularly in terms of latency, accuracy, and resource allocation, which are not adequately addressed by current standards and technologies.
Innovation Solution
User equipment provides processing capability indications for different assistance-data availabilities, allowing a server to coordinate positioning schedules and update rates based on available assistance data, thereby optimizing positioning signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning methods process all assistance data to maximize accuracy, then position accuracy is improved, but processing time and latency increase
Solution Approach 1:
The patent applies partial action by processing only a subset of assistance data rather than all available data. The UE indicates processing capability for different assistance-data availabilities, allowing the network to send only the necessary assistance data for achieving required positioning accuracy, thereby reducing processing time while maintaining acceptable accuracy levels.
2Measurement precision
If the network provides comprehensive assistance data to improve positioning accuracy, then position accuracy is improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent implements dynamics by making the assistance data transmission adaptive rather than static. The network dynamically adjusts the amount and type of assistance data provided based on real-time feedback about UE processing capabilities and positioning requirements, optimizing the balance between accuracy and device complexity.
Solution Approach 2:
The patent changes the parameter of assistance data availability to match UE processing capabilities. By indicating processing capability for different assistance-data availabilities, the system adjusts the data transmission parameters dynamically, ensuring that the network provides appropriate levels of assistance data without overwhelming the UE with excessive processing requirements.
3Loss of time
If the system updates positioning information at high rates to reduce latency, then response time is improved, but energy consumption and processing load increase
Solution Approach 1:
The patent applies periodic action by establishing update rates for positioning information that are optimized rather than continuously maximum. The server coordinates positioning schedules with appropriate update rates based on UE capabilities and positioning needs, reducing unnecessary energy consumption from excessive updates while maintaining acceptable latency for the application.
Data Source
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AI summary
A example method of determining a positioning signal measurement includes: sending, from a user equipment to a network entity, a processing-capability message indicating a processing capability of the user equipment for processing an aggregated positioning reference signal, where the processing-capability message corresponds to one or more assistance-data types; obtaining, at the user equipment, the aggregated positioning reference signal; and processing, at the user equipment, the aggregated positioning reference signal based on assistance data to determine the positioning signal measurement, the assistance data including the one or more assistance-data types.