Joint Downlink Sidelink Positioning Capability Reporting
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Solution Overview
Problem
Current wireless communication systems, particularly in the context of 5G, face challenges in efficiently processing and reporting positioning capabilities for both downlink and sidelink reference signals, which affects the accuracy and reliability of user equipment (UE) location determination, especially in scenarios with limited cellular connectivity or complex network configurations.
Innovation Solution
A method and system where user equipment (UE) engages in downlink and sidelink positioning sessions, transmitting positioning capability reports to network entities, including parameters for processing both downlink and sidelink positioning reference signals, enhancing joint capability reporting and positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE processes both downlink and sidelink positioning reference signals separately, then the positioning capability reporting is simple, but the positioning accuracy and reliability deteriorate in scenarios with limited cellular connectivity
Solution Approach 1:
The patent combines separate downlink positioning capability parameters and sidelink positioning capability parameters into a unified joint positioning capability report. The UE transmits both DL-PRS and SL-PRS processing capabilities together in a single capability report to the network entity, enabling integrated positioning that improves accuracy especially in limited cellular connectivity scenarios while managing reporting complexity through standardized parameter structures.
2Reliability
If the UE integrates downlink and sidelink positioning capabilities, then the positioning reliability improves in limited cellular connectivity scenarios, but the positioning capability report complexity increases
Solution Approach 1:
The patent creates a universal positioning capability report structure that handles both downlink and sidelink positioning functions. The joint capability report includes parameters that can represent both DL-PRS and SL-PRS processing capabilities using a unified framework, allowing the same reporting mechanism to serve multiple positioning modes and improving reliability across different connectivity scenarios without requiring separate reporting procedures.
3Productivity
If the UE transmits detailed joint capability parameters, then the network positioning efficiency improves, but the signaling overhead increases
Solution Approach 1:
The patent employs parameter changes by representing both downlink and sidelink positioning capabilities through standardized capability parameters that can be efficiently encoded. The joint capability report uses structured parameters that convey comprehensive positioning information while maintaining compact representation, enabling the network to efficiently determine UE positioning capabilities and configure appropriate positioning procedures without excessive signaling overhead.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) engages in a downlink positioning session, a sidelink positioning session, or both with one or more first network entities, and transmits at least one positioning capability report to one or more second network entities, the at least one positioning capability report including one or more parameters indicating joint downlink and sidelink capabilities of the UE to process both downlink positioning reference signals (DL-PRS) and sidelink positioning reference signals (SL-PRS).