Differentiated SINR Reporting for Multi-TRP Beam Management
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Solution Overview
Problem
Current beam management and scheduling systems in multi-transmission reception point (TRP) scenarios face challenges in accurately determining and reporting signal-to-interference-and-noise ratio (SINR), particularly due to inter-TRP interference, which affects receiver performance and beam pair selection.
Innovation Solution
The method involves determining reference signal received power and SINR at multiple TRPs, and transmitting this information to enable the user equipment to differentiate between SINR including and excluding inter-TRP interference, allowing for improved beam management and scheduling decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If SINR is determined including inter-TRP interference, then measurement precision is improved, but device complexity increases due to multiple TRP measurements and reporting
Solution Approach 1:
The patent segments the SINR measurement process into multiple modes: first mode measures SINR including inter-TRP interference, second mode measures SINR excluding inter-TRP interference. This segmentation allows the system to selectively apply different measurement approaches based on specific needs, improving precision without always incurring the full complexity cost
Solution Approach 2:
The patent implements partial action by providing differentiated SINR reporting only when inter-TRP interference is significant. The network can configure whether to enable differentiated reporting based on deployment scenarios, avoiding unnecessary complexity in scenarios where simple SINR reporting suffices
2Reliability
If differentiated SINR reporting is implemented, then reliability of beam management is improved, but loss of information increases due to additional reporting overhead
Solution Approach 1:
The patent implements dynamic SINR reporting where the reporting mode (first mode including interference, second mode excluding interference) can be flexibly configured by the network based on current channel conditions, TRP configurations, and interference levels. This dynamic approach ensures reliability when needed while minimizing overhead when not required
Solution Approach 2:
The patent applies local quality by providing differentiated SINR information specifically for TRPs experiencing significant inter-TRP interference, rather than uniformly across all TRPs. This targeted approach improves beam management reliability for affected TRPs while minimizing overall reporting overhead
3Adaptability or versatility
If multiple SINR measurement modes are provided, then adaptability of the system is improved, but ease of operation deteriorates due to mode selection complexity
Solution Approach 1:
The patent implements self-service by enabling the network to automatically select and configure the appropriate SINR measurement mode based on observed interference patterns and system performance. The network can monitor inter-TRP interference levels and dynamically switch between first mode and second mode without manual intervention, maintaining adaptability while simplifying operation
Solution Approach 2:
The patent applies preliminary action by pre-configuring multiple SINR measurement modes and their corresponding reporting mechanisms before deployment. This allows the system to be highly adaptable to different scenarios while the complexity of mode selection is resolved in advance through configuration rather than real-time decision-making
Data Source
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AI summary
A method including determining a first reference signal received power and a first signal to interference and noise ratio at a user equipment in relation to a first transmission reception point; determining a second reference signal received power and a second signal to interference and noise ratio at the user equipment in relation to a second transmission reception point, where the first and second transmission reception points are spaced from each other; transmitting a signal from the user equipment, where the signal comprises information in regard to the reference signal received powers and the signal to interference and noise ratios for the first and second transmission reception points.