Directional Repeater Initialization With RRC Beam Steering
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Solution Overview
Problem
Existing wireless communication systems, particularly in NR and LTE, face challenges in optimizing directional wireless transmissions, necessitating improvements in beamforming and signal relaying to enhance mobile broadband access and support diverse communication services.
Innovation Solution
The implementation of a directional repeater that exchanges RRC messages with a base station to initialize and steer RF signals, utilizing a codebook map to enhance signal relaying and beam selection, thereby optimizing directional wireless transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If directional repeaters are deployed to extend wireless coverage and improve signal relaying, then communication efficiency and service support are improved, but device complexity and initialization difficulty increase
Solution Approach 1:
The directional repeater performs self-initialization by autonomously determining its location based on reference signals from multiple base stations, calculating angle of arrival (AoA) independently, and selecting optimal beams without manual configuration. This self-service approach reduces deployment complexity while maintaining high communication efficiency.
Solution Approach 2:
The system performs preliminary beam training and location determination during the initialization phase, establishing optimal beam pairs and configuration parameters before actual data transmission begins. This preliminary action ensures that the repeater is fully operational with optimized settings, avoiding interruptions during service.
2Reliability
If beamforming and directional transmissions are implemented to enhance signal quality, then spectral efficiency and coverage are improved, but beam selection complexity and initialization time increase
Solution Approach 1:
The directional repeater performs beam training and optimal beam pair selection during the initialization phase before data transmission begins. By pre-determining the best transmit and receive beams using reference signals and AoA calculations, the system ensures high signal quality from the start without requiring time-consuming beam adjustments during operation.
Solution Approach 2:
The system uses feedback from reference signal measurements and angle of arrival calculations to automatically adjust and optimize beam selection. The repeater continuously monitors signal quality metrics and refines beam parameters, ensuring reliable communication while minimizing initialization time through adaptive optimization.
3Adaptability or versatility
If smart repeaters with beamforming capabilities are deployed to support diverse communication services, then service versatility and mobile broadband access are improved, but system complexity and configuration difficulty increase
Solution Approach 1:
The smart repeater autonomously configures its beamforming parameters by receiving reference signals from base stations, determining its geographic location, calculating angle of arrival, and selecting optimal beams for different communication services. This self-configuration capability enables support for diverse services including mobile broadband and machine type communications without manual intervention, reducing system complexity while maintaining high versatility.
Data Source
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AI summary
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for initiating directional repeaters (wireless devices that relay directional wireless signals) that have an ability to be controlled by a base station (BS), for example, for beamforming purposes.