Antenna Panel Beam Configuration for Wireless Reliability
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing different antenna panels across transmissions, leading to suboptimal beam and TCI state configurations, which affect communication reliability and quality.
Innovation Solution
A method and apparatus for wireless communication that allow a base station to indicate specific antenna panels and beams for different transmissions, enabling the use of the same beam and TCI state for repetition across multiple antenna panels to enhance reliability and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same antenna panel is used for all transmissions, then the configuration is simple, but the communication reliability and quality are suboptimal
Solution Approach 1:
The UE antenna array is divided into multiple antenna panels, each capable of independent operation. The base station receives separate indications for each antenna panel regarding beam usage and TCI state configurations, allowing independent optimization of each panel for different transmission types (initial vs. repetition), thereby improving communication reliability without requiring a completely new system architecture
Solution Approach 2:
The system dynamically configures different beam and TCI state settings for different antenna panels based on transmission type. The base station receives dynamic indications from the UE about which beams and TCI states to use for initial transmissions versus repetition transmissions, allowing the system to adapt to changing channel conditions and optimize performance for each specific transmission scenario
2Reliability
If different antenna panels are used for different transmissions, then the communication quality improves, but the system complexity increases
Solution Approach 1:
The indication mechanism is designed to be universal, working for both initial transmissions and repetition transmissions through a single framework. The base station uses the same indication procedure to configure both types of transmissions, but with different parameter values appropriate for each transmission type, reducing the need for separate configuration systems and minimizing overall complexity
Solution Approach 2:
Different quality settings (beams and TCI states) are applied to different antenna panels based on their specific functions. Initial transmission panels use configurations optimized for establishing connectivity, while repetition transmission panels use configurations optimized for reliability and error correction, allowing each panel to operate at optimal quality levels for its specific purpose
3Productivity
If suboptimal beam configurations are used, then the system operation is simple, but the transmission efficiency decreases
Solution Approach 1:
The UE performs measurements and determines optimal beam and TCI state configurations in advance before actual transmissions occur. The base station receives these predetermined indications and configures the antenna panels accordingly, so that when transmissions occur, the optimal configurations are already in place, maximizing transmission efficiency without requiring complex real-time adjustment mechanisms
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication of at least one first beam and at least one first antenna panel of the UE, to use for one or more first transmissions, and of at least one second beam and at least one second antenna panel of the UE, to use for one or more second transmissions. Accordingly, the UE may communicate the one or more first transmissions, with the base station, using the at least one first beam and the at least one first antenna panel. Additionally, the UE may communicate the one or more second transmissions, with the base station, using the at least one second beam and the at least one second antenna panel. Numerous other aspects are provided.