PSI Report Element Postponement for Low-Latency 5G Positioning
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing the transmission of positioning state information (PSI) reports, particularly in 5G networks, which require enhanced spectral efficiency and reduced latency, leading to potential congestion and resource wastage.
Innovation Solution
The implementation of a mechanism to postpone the transmission of lower priority PSI report elements on a lower layer channel, allowing for more strategic management of network resources and reducing unnecessary reporting, thereby optimizing network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If PSI reports are transmitted frequently to maintain accurate positioning capabilities, then positioning accuracy is improved, but network congestion and resource wastage increase
Solution Approach 1:
The patent applies partial action by selectively transmitting only necessary PSI report elements based on priority levels and current positioning requirements. Instead of transmitting all PSI elements in every report, the system transmits only those elements that are currently needed, reducing network traffic while maintaining positioning accuracy when required.
Solution Approach 2:
The patent implements dynamic PSI report transmission by adjusting reporting behavior based on current positioning needs, device mobility state, and network conditions. The system dynamically determines which PSI elements to report and when, rather than using fixed periodic reporting, thereby optimizing the balance between positioning accuracy and network efficiency.
2Reliability
If all PSI report elements are transmitted to ensure complete positioning information, then positioning reliability is improved, but signaling overhead and latency increase
Solution Approach 1:
The patent extracts and separates PSI report elements into different priority levels, allowing the system to transmit only the most critical positioning information first. High-priority elements essential for basic positioning are transmitted immediately, while lower-priority elements are deferred or omitted when resources are constrained, reducing latency while maintaining sufficient positioning reliability.
Solution Approach 2:
The patent changes the transmission parameters of PSI reports by adjusting the set of included elements based on current conditions. The system modifies report content dynamically, changing which parameters are included or excluded based on positioning requirements, device state, and network conditions, thereby optimizing the balance between reliability and latency.
3Speed
If PSI reporting is performed continuously to maintain real-time positioning, then positioning responsiveness is improved, but energy consumption and network resource usage increase
Solution Approach 1:
The patent implements periodic PSI reporting with variable intervals based on device mobility state and positioning requirements. Instead of continuous reporting, the system uses periodic reports adjusted in frequency according to current needs - more frequent when the device is moving or positioning accuracy is critical, and less frequent when the device is stationary or basic positioning suffices, thereby reducing energy consumption while maintaining responsiveness.
Solution Approach 2:
The patent applies dynamic reporting intervals that adapt to current device state and network conditions. The system dynamically adjusts the frequency and content of PSI reports based on mobility detection, positioning service requirements, and available network resources, optimizing the balance between positioning responsiveness and energy efficiency.
Data Source
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AI summary
A user equipment (UE) generates a positioning state information (PSI) report that is transmitted in a lower layer channel container, e.g., in the Physical channel or Medium Access Control channel, to a network entity to reduce latency. The PSI report is generated based on a plurality of PSI report elements determined from uplink (UL), downlink (DL) or UL and DL positioning measurements performed by the UE. Each PSI report element includes information related to positioning measurements performed by the UE. The transmission of at least one PSI report element generated by the UE may be postponed and not included in a current PSI report. The PSI report includes one or more indications of postponement, indicating that one or more PSI report elements have been postponed. A serving base station may grant a lower layer channel container for a second PSI report to contain the previously postponed PSI report elements.