UE Positioning Capability Reporting for Joint Downlink Signals
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Solution Overview
Problem
Existing communication systems lack a mechanism for reporting user equipment (UE) capability when multiple positioning signals are jointly used to support positioning functions, which limits the potential improvement in positioning accuracy due to bandwidth constraints.
Innovation Solution
A method for reporting positioning capability where a terminal device communicates a first UE capability to a network device through signaling, indicating the support for joint use of multiple downlink positioning signals, enhancing positioning accuracy by effectively utilizing larger equivalent bandwidths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple positioning signals are jointly used to support positioning function, then positioning accuracy is improved, but device complexity increases due to lack of capability reporting mechanism
Solution Approach 1:
The capability reporting is segmented into multiple independent capability parameters (first UE capability, second UE capability, third UE capability) that can be reported separately. This allows the system to break down the complex capability reporting into manageable segments, reducing the overall complexity while enabling detailed capability description for multiple positioning signal joint use scenarios.
Solution Approach 2:
The capability reporting mechanism is designed to be dynamic and flexible, allowing terminal devices to report only the capabilities they actually support. The network device can adaptively request and process capability information based on specific positioning scenarios, avoiding the need for a fixed complex reporting structure for all possible scenarios.
2Measurement precision
If spectrum of a single carrier is limited, then bandwidth is constrained, but positioning accuracy improvement is limited
Solution Approach 1:
The patent combines multiple positioning signals from different carriers into a joint positioning function. By merging the bandwidth resources of multiple carriers through capability reporting and joint processing, the system achieves an equivalent total bandwidth that exceeds the limitation of any single carrier, thereby improving positioning accuracy without requiring additional spectrum per carrier.
3Adaptability or versatility
If no UE capability reporting mechanism exists for multiple positioning signals, then positioning function flexibility is reduced, but implementation simplicity is maintained
Solution Approach 1:
The capability reporting mechanism is designed with universal applicability, using standardized capability parameters (first, second, third UE capabilities) that can accommodate various positioning scenarios and signal combinations. This universal framework provides flexibility for different positioning functions while maintaining a consistent reporting structure that avoids unnecessary complexity.
Data Source
AI summary
Provided are a method for reporting positioning capability, a terminal device, and a network device. In the method, a terminal device reports through a first signaling to a network device a first user equipment (UE) capability supported by the terminal device, and the first UE capability is a positioning function based on joint use of multiple downlink (DL) positioning signals.