Positioning State Information Compression for Lower-Layer 5G Channels
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Solution Overview
Problem
The overhead associated with positioning state information (PSI) reports in wireless communication systems is high, particularly in 5G networks, which can lead to inefficiencies and increased latency.
Innovation Solution
The solution involves compressing and omitting low-priority PSI report elements to fit within lower layer channels, using iterative methods to ensure the report fits within the channel container, thereby reducing the overall overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complete PSI report elements are transmitted, then positioning accuracy is improved, but overhead increases
Solution Approach 1:
The patent extracts and transmits only the most essential PSI report elements that are critical for positioning accuracy, omitting less important elements to reduce overhead while maintaining necessary positioning precision
Solution Approach 2:
The patent applies different transmission priorities to different PSI report elements based on their importance, transmitting high-priority elements completely and reducing or omitting low-priority elements, thereby optimizing the balance between positioning accuracy and overhead
2Loss of information
If all PSI report elements are included, then positioning information completeness is improved, but latency increases
Solution Approach 1:
The patent extracts and transmits only the most time-critical PSI report elements first, enabling faster processing and reduced latency while maintaining essential positioning information completeness
Solution Approach 2:
The patent segments PSI report elements into different priority levels and transmits them in staged batches, allowing the network to process critical positioning information faster while less critical elements follow, thereby reducing overall latency
3Reliability
If high-priority PSI elements are transmitted, then positioning reliability is improved, but spectral efficiency decreases
Solution Approach 1:
The patent dynamically adjusts the transmission parameters of PSI report elements based on network conditions, changing the level of detail or compression applied to different elements to optimize the balance between positioning reliability and spectral efficiency
Data Source
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AI summary
A user equipment (UE) generates a positioning state information (PSI) report that is transmitted to a network entity in a lower layer channel container, e.g., in the Physical channel or Medium Access Control channel, to reduce latency. The PSI report may be generated based on a plurality of PSI report elements determined from positioning measurements performed by the UE. Each PSI report element includes information related to positioning measurements performed by the UE. One or more of the PSI report elements may be compressed based on a compression configuration, in order to reduce overhead. If the size of the PSI report elements, after one or more PSI report elements are compressed, is larger than the lower layer channel container, one or more of the PSI reports may be omitted from the PSI report. A network entity may receive and process the PSI report based on the compression configuration.