Sidelink Beam Control for Interference Management
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Solution Overview
Problem
In wireless communication systems, especially NR-V2X operating in mmWave frequency bands, the existing resource allocation mechanism for sidelink communication fails to effectively manage beamforming, leading to interference and inefficient data transmission between user equipment (UE) devices.
Innovation Solution
Implementing a method where a first electronic device schedules periodic sidelink data transmission using multiple beam patterns, including a narrower beam with higher gain and a wider, omni-directional beam, to avoid interfering with other UE transmissions and optimize resource allocation based on measured channel qualities and signal strength thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single narrow beam is used for sidelink transmission, then data transmission efficiency is improved, but interference with other UE transmissions increases
Solution Approach 1:
The patent divides the transmission into multiple beam patterns (first beam pattern with narrow beam for high gain, second beam pattern with wider beam for omnidirectional coverage). The transmitting UE alternates between these different beam patterns to serve multiple purposes: maintaining high data rates with the narrow beam while reducing interference to other UEs with the wider beam, thus segmenting the transmission function into complementary components.
2Device complexity
If beamforming is not implemented, then device complexity is reduced, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements periodic beam pattern alternation where the transmitting UE switches between the first beam pattern (narrow beam) and second beam pattern (wider beam) at regular intervals. This periodic action allows the system to achieve effective resource allocation and interference management through beamforming without requiring complex continuous beam adjustment mechanisms, thus balancing complexity and efficiency.
3Object-affected harmful factors
If multiple beam patterns are used for transmission, then interference management is improved, but device complexity increases
Solution Approach 1:
The patent employs dynamic beam pattern selection where the transmitting UE adapts between different beam patterns based on communication conditions. The system dynamically switches between the narrow beam pattern (for high-gain directional transmission) and wider beam pattern (for omnidirectional interference reduction), allowing flexible interference management while maintaining manageable device complexity through predefined pattern alternatives.
Data Source
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AI summary
A computer-implemented method for transmission beam control in a data communication by an electronic device includes scheduling a periodic data transmission to a second electronic device on a first resource using at least a first beam and a second beam during a first time period. The electronic device transmits data, through a sidelink between the electronic device and the second electronic device, to the second electronic device on the first resource using at least the first beam and the second beam during the first time period.