Repeater Beam Control via Base Station Feedback
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Solution Overview
Problem
Current repeaters lack effective methods for controlling their beams, which is essential for optimizing communication quality in advanced wireless communication systems like 5G.
Innovation Solution
A repeater system that includes a reception section to receive multiple beams from a base station and a control section to determine the appropriate beam for a terminal based on beam information included in each time unit of the received beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional amplify-and-forward repeaters are used, then signal transmission is simple, but beam control capability is lacking
Solution Approach 1:
The patent introduces beam information as an intermediary element that carries identification information about beams from the base station to the repeater. This mediator enables the repeater to identify and select appropriate beams without requiring complex beamforming capabilities, thus improving adaptability while maintaining relatively simple repeater structure.
Solution Approach 2:
The patent segments the beam control function into two parts: the base station generates and transmits beam information, while the repeater receives and uses this information for beam selection. This segmentation allows the complex beam control functionality to be implemented in the base station rather than the repeater, resolving the contradiction between adaptability and device complexity.
2Measurement precision
If beam information is included in each time unit, then beam control precision is improved, but information processing load increases
Solution Approach 1:
The patent extracts only the essential beam identification information from the complete beam data and transmits it as compact beam information in each time unit. This extraction approach provides sufficient beam control precision for the repeater to identify the correct beam while minimizing the information processing load compared to transmitting full beamforming parameters.
3Reliability
If multiple beams are received from base station, then communication quality can be optimized, but beam selection complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the base station transmits beam information that includes identification data about the beams. The repeater uses this feedback information to automatically select the appropriate beam for signal transmission, enabling communication quality optimization through multiple beams while keeping the selection process simple through automated feedback-driven selection.
Data Source
AI summary
This repeater comprises: a reception unit that receives a plurality of beams from a base station; and a control unit that determines a terminal-oriented beam on the basis of beam information of the base station included in each of the time units of a received beam and associated with each of the plurality of beams.