Repeater Beam Selection With Phase-Shift Feedback for High-Frequency Links
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Solution Overview
Problem
Existing communication systems face challenges in improving beam transmission and reception performance in high-frequency bands due to high path loss, particularly when using repeaters for signal relay.
Innovation Solution
A method and apparatus for controlling beams by selecting the most suitable repeater and determining optimal beam combinations through phase shift configurations, using signaling procedures between communication nodes to enhance repeater-based communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If repeaters are used to relay wireless signals in high-frequency bands, then signal transmission coverage is extended, but path loss increases and signal quality deteriorates
Solution Approach 1:
The patent changes the phase shift parameter of the repeater to optimize signal transmission. By adjusting the phase shift configuration, the system compensates for path loss in high-frequency bands and improves signal quality at the receiving end, directly addressing the contradiction between extended coverage and energy loss.
Solution Approach 2:
The patent implements a feedback mechanism where the second communication node measures signal quality and reports back to the first communication node. Based on this feedback, the system selects the optimal repeater and configures appropriate phase shifts, enabling adaptive optimization that mitigates path loss while maintaining extended coverage.
2Reliability
If multiple repeaters are deployed to improve beam transmission performance, then signal relay capability is enhanced, but system complexity increases
Solution Approach 1:
The patent segments the beam transmission system into distinct components: first communication node, second communication node, and multiple repeaters with different phase shift configurations. This segmentation allows independent optimization of each component and simplifies the management of multiple repeaters by treating them as modular units with specific functions.
Solution Approach 2:
The patent introduces dynamic selection of repeaters based on channel conditions and phase shift requirements. Instead of a fixed repeater configuration, the system dynamically determines which repeater to use and what phase shift to apply, optimizing beam transmission performance while managing system complexity through adaptive rather than static configuration.
3Measurement precision
If phase shift configurations are optimized for each repeater, then beam reception quality improves, but signaling overhead increases
Solution Approach 1:
The patent applies partial optimization by configuring phase shifts only for the selected repeater rather than all possible repeaters. The system determines the optimal repeater based on channel conditions and configures phase shifts only for that specific repeater, reducing signaling overhead while maintaining beam reception quality through targeted rather than exhaustive configuration.
Data Source
AI summary
An operation method of a first communication node in a communication system may include the steps of: transmitting, to a second communication node, a first indication including information about one or more repeaters; transmitting a first signal group corresponding to the one or more repeaters to the second communication node through the one or more repeaters; receiving, from the second communication node, a first response including a measurement result for the first signal group; determining a first repeater from among the one or more repeaters on the basis of the first response; determining beam combination information for one or more beam combinations between the first communication node, the first repeater, and the second communication node; and performing wireless communication with the first repeater and the second communication node.