Full-Duplex Beam Management Self-Interference Reporting
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Solution Overview
Problem
Full-duplex wireless communications systems face limitations in beam management and optimization due to incomplete interference assessment, as they primarily consider base station interference without accounting for user equipment (UE) self-interference, which hampers the effectiveness of beam selection and scheduling.
Innovation Solution
The system enables UEs to measure and report both base station interference and UE self-interference metrics to the base station, allowing for comprehensive beam and link management optimization by transmitting signal strength metrics for various beam pairs, enabling the base station to select optimal transmit and receive beams for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex communications are implemented to increase communication capacity, then productivity is improved, but interference (both base station interference and UE self-interference) increases
Solution Approach 1:
The patent implements feedback mechanisms where UEs report self-interference metrics and beam quality information to the base station. This feedback enables the base station to adjust beamforming parameters and scheduling decisions to mitigate interference while maintaining full-duplex communication capacity.
Solution Approach 2:
The patent dynamically changes communication parameters including beamforming weights, transmit power levels, and resource allocation based on measured interference conditions. By adjusting these parameters in response to interference levels, the system maintains productivity while managing the harmful effects of full-duplex operation.
2Device complexity
If beam management optimization is performed using only base station interference metrics, then device complexity is reduced, but measurement precision is insufficient
Solution Approach 1:
The patent segments the interference assessment into two distinct components: base station interference measurement and UE self-interference measurement. Each component is measured and reported separately, allowing the base station to comprehensively assess total interference without overwhelming complexity at the UE level.
Solution Approach 2:
The patent creates a universal beam management framework that handles both base station interference and UE self-interference through a unified measurement and reporting mechanism. This multi-functional approach improves measurement precision while keeping the overall system complexity manageable through standardized procedures.
3Measurement precision
If UE self-interference measurement and reporting is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having UEs perform self-interference measurements and prepare reports in advance before actual communication occurs. This allows the base station to have accurate interference information available for beam selection and scheduling decisions, improving measurement precision while managing UE complexity through structured, pre-planned measurement procedures.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a first set of signal strength metrics for signal strengths of transmit beams of a base station using receive beams of the UE. The UE may identify a second set of signal strength metrics for signal strengths of transmit beams of the UE using receive beams of the UE. The UE may transmit an indication of the first set of signal strength metrics and the second set of signal strength metrics to the base station. The UE may communicate with the base station based at least in part on the indication.