Wireless Signal Positioning via Reception Beam Index and QCL Mapping
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately transmitting and receiving signals, particularly in positioning methods, due to limitations in reporting reception beam information and quasi-co-location relationships between reference signals, which affect the precision and effectiveness of positioning in next-generation communication systems.
Innovation Solution
The method involves a user equipment (UE) receiving and transmitting measurement reports that include information on the reception beam used for positioning, such as an index and quasi-co-location (QCL) information between preconfigured reference signals and positioning reference signals, allowing for improved beam configuration and mapping, thereby enhancing signal transmission and reception accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed beam configuration and mapping information is reported in measurement reports, then positioning accuracy is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent extracts only the essential beam information (reception beam index and QCL information) from the complete beam configuration, reporting only what is necessary for positioning accuracy while omitting redundant details. This selective extraction reduces reporting complexity while maintaining positioning precision.
Solution Approach 2:
The reported beam information serves multiple functions: it enables positioning measurements, supports beam management, and provides spatial relationship context. By making the measurement report multi-functional, the patent reduces the need for separate signaling messages, thereby reducing overall reporting complexity while improving positioning accuracy.
2Reliability
If comprehensive QCL information is included in measurement reports, then signal reception accuracy is improved, but information loss and reporting overhead increase
Solution Approach 1:
The patent applies local quality by providing detailed QCL information only where it is most critical for positioning accuracy - specifically for the reception beams used in positioning measurements. Not all beams receive the same level of detailed reporting, optimizing the balance between reliability and overhead.
Solution Approach 2:
The network pre-configures QCL relationships between reference signals and positioning reference signals before measurements are taken. This preliminary establishment of QCL information reduces the amount of data that needs to be reported afterward, as the foundation is already in place, thereby reducing reporting overhead while maintaining signal reception accuracy.
Data Source
AI summary
Various embodiments relate to a next generation wireless communication system for supporting a data transmission rate or the like higher than that of a 4th generation (4G) wireless communication system. According to various embodiments, a method for transmitting and receiving a signal in a wireless communication system and an apparatus supporting same may be provided, and various other embodiments may be provided.