Network-Controlled Repeater Beam Indication for Link Quality
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Solution Overview
Problem
Current network-controlled repeaters (NCRs) lack methods for beam indication and characterization, leading to degraded link quality and coverage, which affects the performance of wireless communication systems.
Innovation Solution
Implementing a method where NCRs receive beam information from a base station to determine and apply spatial filters for downlink forwarding and uplink reception, including beam identification, reference signal information, and power control, to enhance beam management and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network-controlled repeaters operate without beam indication methods, then device complexity is reduced, but link quality and coverage performance deteriorate
Solution Approach 1:
The patent introduces beam indication information as an intermediary element transmitted from the base station to the repeater. This intermediary carries beam identification and characterization data that enables the repeater to properly manage beams without requiring complex local decision-making capabilities, thus improving link quality while keeping repeater complexity manageable.
Solution Approach 2:
The patent implements dynamic beam management where the base station can update beam indication information periodically or event-triggered. This allows the system to adapt beam configurations dynamically based on channel conditions while maintaining a structured approach where the repeater follows base station instructions rather than autonomously determining beam parameters.
2Reliability
If beam indication information is transmitted frequently to improve coverage, then link quality improves, but information transmission overhead increases
Solution Approach 1:
The patent specifies that the base station transmits beam indication information periodically with a configurable period. This periodic transmission allows the system to maintain coverage through regular updates while avoiding continuous information flooding. The period parameter enables optimization between coverage maintenance and overhead reduction.
Solution Approach 2:
The repeater autonomously determines when to transmit beam indication information based on events such as channel conditions or timing requirements. This event-triggered mechanism allows the system to send information only when necessary to maintain coverage, reducing unnecessary transmissions and associated overhead while ensuring coverage requirements are met.
3Adaptability or versatility
If repeaters operate autonomously without base station control, then operational flexibility improves, but beam management precision deteriorates
Solution Approach 1:
The patent segments beam management responsibilities between the base station and repeater. The base station provides precise beam indication information including identification and characterization parameters, while the repeater handles local application of these beams for forwarding and reception. This segmentation maintains precision in beam characterization (base station function) while allowing operational flexibility in beam application (repeater function).
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. An aspect of the disclosure provides a method performed by a repeater in a communication system and the repeater performing the method, wherein the method comprises: receiving first beam information from a base station; and applying the first beam information for downlink forwarding and/or uplink reception. Another aspect of the disclosure provides a method performed by a repeater in a communication system and the repeater performing the method, wherein the method comprises: receiving a plurality of beam information from a base station; determining a mapping relationship and/or a grouping relationship between the plurality of beam information.