Beam Information Reporting via Unified UCI Format
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Solution Overview
Problem
In 5G New Radio (NR) systems operating at high frequencies, pathloss is a significant issue, and existing technologies lack efficient methods for reporting beam information, which is crucial for beam selection and failure detection, leading to increased signaling overhead and complexity.
Innovation Solution
A system and method for reporting beam information using a single uplink control information (UCI) format that includes beam indices, reference beam quality measurements, and differential beam quality measurements, allowing for partial and total beam failure reporting, thereby reducing signaling overhead and improving communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate reporting formats are used for different beam information types, then beam management functionality is comprehensive, but signaling overhead increases
Solution Approach 1:
The patent applies universality by designing a single UCI format that can carry multiple types of beam information reports (beam quality reports, beam failure reports, and combined reports). The report type field within the unified format indicates what specific information is being conveyed, allowing one structure to serve multiple functions and thereby reducing signaling overhead while maintaining comprehensive beam management capabilities.
Solution Approach 2:
The patent merges previously separate reporting mechanisms into a single integrated UCI format. Instead of having separate control information structures for beam quality reporting and beam failure reporting, the invention combines them into one unified format that can convey either type of information depending on the report type field value, thus reducing the total signaling overhead.
2Measurement precision
If detailed beam quality measurements are reported for all beams, then beam selection accuracy is improved, but reporting complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the beam reporting process into different report types based on the specific information needed. Rather than always reporting detailed measurements for all beams, the system can segment the reporting to only include necessary information (e.g., only beam failure information when needed, or only quality measurements for beam selection), thereby reducing reporting complexity while maintaining accuracy when required.
Solution Approach 2:
The patent applies partial action by enabling the UE to report only the necessary beam information based on the report type indicated by the network. The UE can provide partial reports containing only essential beam quality measurements or failure information rather than always providing complete detailed measurements for all beams, thus reducing complexity while maintaining sufficient precision for the specific task at hand.
Data Source
AI summary
A method for reporting beam information includes setting, by a user equipment (UE), a report type of a beam information report, wherein the beam information report includes beam indices of communications beams being reported, a reference beam quality measurement of one of the communications beams reported, and a report type field conveying the report type, and sending, by the UE to an access node, the beam information report.