Multi-TRP Positioning Capability Reporting for 5G UEs
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G networks, face challenges in accurately reporting positioning capabilities when operating in multi-transmission-reception point (multi-TRP) modes, which can enhance positioning operations but require effective measurement and reporting of positioning reference signals (PRS).
Innovation Solution
A method for wireless communication where a user equipment (UE) operates in a multi-TRP mode, engages in positioning sessions with network entities, and reports enhanced positioning capabilities. This involves measuring an enhanced set of PRS resources during a measurement period, which includes more PRS resources than what is possible in a single-transmission-reception point (S-TRP) mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE measures an enhanced set of PRS resources in multi-TRP mode, then positioning accuracy is improved, but the complexity of measurement and reporting increases
Solution Approach 1:
The patent segments the positioning capability reporting into multiple independent capability indicators (e.g., first positioning capability for S-TRP mode, second positioning capability for multi-TRP mode). Each capability is reported separately, allowing the network to selectively activate appropriate modes without requiring complex integrated reporting mechanisms.
Solution Approach 2:
The patent enables dynamic switching between different positioning capabilities based on operational mode. The UE can adaptively report different capability sets (S-TRP vs. multi-TRP) depending on the current deployment scenario, allowing the system to optimize measurement complexity according to actual positioning requirements.
2Reliability
If the UE operates in multi-TRP mode with enhanced positioning capabilities, then positioning effectiveness is improved, but the number of PRS resources to be measured increases
Solution Approach 1:
The patent creates a universal positioning capability framework where the same measurement mechanisms can handle both S-TRP and multi-TRP modes. The enhanced capability indicator enables the system to universally support multiple TRP configurations without requiring entirely separate measurement procedures for each mode.
Solution Approach 2:
The patent changes the capability parameter to indicate support for enhanced multi-TRP positioning. By modifying the capability indication parameter rather than the fundamental measurement process, the system can handle increased PRS resources through parameter-based adaptation rather than structural complexity increases.
3Adaptability or versatility
If the network configures multiple positioning capabilities for different modes, then adaptability to various deployment scenarios is improved, but the complexity of capability reporting increases
Solution Approach 1:
The patent segments capability reporting into distinct, mode-specific capability indicators. Instead of requiring a single complex capability message that covers all possible scenarios, the system divides capability reporting into separate first capability (S-TRP) and second capability (multi-TRP) indicators, simplifying the overall reporting structure.
Solution Approach 2:
The patent implements partial capability reporting where the UE reports only the specific capability level needed for the current operational context. The enhanced capability for multi-TRP mode is reported as an additional optional indicator rather than a mandatory comprehensive capability set, reducing reporting overhead while maintaining adaptability.
Data Source
AI summary
In an aspect, a user equipment (UE) may operate in a multi-transmission-reception (multi-TRP) mode. The UE may engage in a positioning session with a network entity while operating in the multi-TRP mode. The UE may report a set of positioning capabilities for the positioning session to the network entity, wherein the set of positioning capabilities indicate one or more enhanced positioning capabilities of the UE to perform positioning operations based on the UE operating in the multi-TRP mode, and wherein the one or more enhanced positioning capabilities are greater than one or more corresponding positioning capabilities of the UE to perform positioning operations based on the UE operating in a single-transmission-reception (S-TRP) mode.