Relay Beam Management via DCI Fields in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing beams for communication devices with relay functions, particularly in next-generation wireless communication systems that require enhanced mobile broadband, massive machine-type communications, and ultra-reliable and low-latency communications, where existing technologies struggle to optimize beam control and link quality between base stations and user equipment (UE) effectively.
Innovation Solution
A method and apparatus for beam management in wireless communication systems, where a user equipment (UE) receives downlink control information (DCI) from a base station, using a communication device that relays signals, with the DCI containing fields for beam and time resource information, allowing for dynamic beam determination and optimization based on the capabilities of the communication device, thereby improving relay efficiency and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a communication device with relay function is introduced to extend coverage, then coverage area is improved, but beam control complexity increases
Solution Approach 1:
The communication device acts as an intermediary relay node between the base station and user equipment. It receives DCI from the base station, determines appropriate beams based on the DCI fields, and performs communication with the UE using the determined beams, thereby extending coverage while managing beam control complexity through standardized processing
Solution Approach 2:
The system dynamically changes beam parameters by interpreting the first field (beam information) and second field (time resource) in the DCI. The communication device determines beams aperiodically based on these parameter changes, allowing adaptive beam control that extends coverage without requiring permanently complex beam management
2Productivity
If dynamic beam determination is implemented based on DCI fields, then relay efficiency is improved, but processing time increases
Solution Approach 1:
Multiple beams are pre-configured and associated with different time resources before actual communication occurs. When the communication device receives the DCI, it can quickly determine the appropriate beam by referencing the pre-configured associations rather than performing complex real-time beam calculations, thus improving relay efficiency while minimizing processing time
Solution Approach 2:
The beam determination is performed aperiodically based on dynamic DCI reception rather than continuously. The communication device adapts its beam selection dynamically according to the time resource indicated in the DCI, allowing efficient relay operation with processing only when needed rather than constant processing overhead
Data Source
AI summary
A beam management and control method of a communication device performing a relay function, a method of communicating with a UE of the communication device according to the quality of a link between the communication device and a base station, and a method of measuring the quality of a link between the communication device and the UE are provided.