Repeater Beam Control via Intermediary Information
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Solution Overview
Problem
There is a need for improved methods to control the beam of network-controlled repeaters in communication systems, particularly in 5G and future radio access technologies, to enhance communication efficiency and quality.
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 associated with each beam, which is included in each time unit of the received beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional amplify-and-forward repeaters are used, then the system is simple to implement, but beam control capability is insufficient for 5G and future radio access technologies
Solution Approach 1:
The patent introduces beam information as an intermediary element that carries identification information between the base station and terminal through the repeater. This beam information acts as a mediator that enables beam control functionality without requiring complex direct control mechanisms, thus improving adaptability while managing device complexity
Solution Approach 2:
The patent applies preliminary action by having the base station transmit beam information in advance through the repeater before actual beamformed signal transmission. This allows the terminal to acquire beam identification information beforehand, enabling proper beam selection and alignment without requiring complex real-time control adjustments
2Measurement precision
If beam information is transmitted through the repeater, then beam control precision is improved, but information loss may occur during relay transmission
Solution Approach 1:
The patent implements feedback mechanisms where the terminal measures reference signals and reports beam quality information back to the base station. This feedback loop allows the base station to verify beam information accuracy and adjust beam selection, ensuring high beam identification accuracy while compensating for any information loss during repeater transmission
Solution Approach 2:
The repeater acts as a copy mechanism that receives beam information from the base station and forwards it to the terminal. By creating and transmitting copies of beam information through the repeater, the system maintains beam identification accuracy while enabling distributed beam control across the network infrastructure
3Productivity
If multiple beams are transmitted from the base station, then communication coverage is improved, but beam selection complexity increases
Solution Approach 1:
The patent segments the beam selection process into distinct components: beam information transmission from base station, beam information relay through repeater, beam measurement by terminal, and beam selection based on measurement results. This segmentation allows multiple beams to be transmitted for improved coverage while managing selection complexity through structured, modular processing steps
Solution Approach 2:
The terminal performs self-service by autonomously measuring reference signals and selecting the appropriate beam based on measured quality metrics. This self-service capability allows the system to handle multiple transmitted beams efficiently without requiring complex centralized control, thus improving communication efficiency while managing beam selection complexity
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 repeater included in each of the time units of a received beam and associated with each of the beams from the repeater.