Aggregated UE RF Mapping for Beam Management in Dynamic Environments
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Solution Overview
Problem
Existing wireless communication systems, such as 5G NR, face challenges in constructing accurate RF maps due to the need for dense UE sampling and the impact of dynamic environmental changes, which affect beam management quality.
Innovation Solution
User Equipment (UE) transmits sensing reports including RF measurements and environmental representations to generate an RF map, allowing for improved beam management and communication reliability without dense sampling, and the base station aggregates UE reports to generate an RF map adaptable to dynamic changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dense sampling from multiple UEs at different locations and orientations is performed to generate accurate RF maps, then measurement precision is improved, but device complexity and loss of time increase
Solution Approach 1:
The patent combines RF measurements and environmental representations from multiple UEs to generate a collective RF map. By merging data from multiple sources, the system achieves comprehensive coverage and high accuracy without requiring each individual UE to perform dense sampling alone, thus reducing per-device complexity while maintaining overall measurement precision.
Solution Approach 2:
The system performs preliminary RF measurements and environmental sensing by UEs before generating the RF map. These preliminary actions collect necessary data in advance, allowing the network to construct accurate RF maps without requiring intensive real-time sampling during actual communication, thereby reducing time consumption and device complexity.
2Measurement precision
If dense sampling from multiple UEs is performed to generate accurate RF maps, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent implements preliminary RF measurements and environmental sensing by UEs before RF map generation. This preliminary data collection occurs in advance, allowing the network to quickly construct accurate RF maps when needed, significantly reducing the time required for RF map generation while maintaining high measurement precision.
Solution Approach 2:
UEs autonomously perform RF measurements and environmental sensing using their own sensors and processing capabilities. This self-service approach distributes the measurement workload across multiple devices, eliminating the need for centralized intensive sampling, thereby reducing overall time consumption while achieving accurate RF maps through aggregated data.
3Device complexity
If traditional RF map generation is performed without environmental representations, then device complexity is reduced, but adaptability to dynamic environmental changes deteriorates
Solution Approach 1:
The patent introduces environmental representations as an intermediary that bridges RF measurements and RF map generation. These representations capture dynamic environmental characteristics, enabling the system to adapt to changing conditions. The intermediary layer processes environmental data and integrates it with RF measurements, providing adaptability without requiring complex real-time reconfiguration of the entire system.
Solution Approach 2:
The system dynamically updates RF maps by incorporating real-time environmental representations from UEs. This dynamic approach allows the RF maps to adapt to changing environmental conditions such as moving objects or changing obstructions. The system maintains simplicity by updating only the necessary portions of RF maps based on current environmental data rather than regenerating entire maps.
Data Source
AI summary
A method of wireless communication at a UE is described herein. The method includes transmitting a sensing report including (1) a first indication of at least one radio frequency (RF) measurement associated with at least one BPL and (2) a second indication of a representation of an environment of the UE. The method includes obtaining an RF map based on the transmitted sensing report, where the RF map is indicative of at least one surface in the environment of the UE that is associated with at least one suitable BPL. The method includes communicating based on the RF map.