Uplink Control Information Beam Group Reporting
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Solution Overview
Problem
Current methods lack effective solutions for beam group-based and beam-based uplink control information reporting in millimeter-wave systems, leading to inefficiencies in beam management and increased reporting overheads.
Innovation Solution
A data transmission method where a terminal sends uplink control information in a specific format, including measurement results and identifiers of beam groups or beams, with a reference measurement result and offset, to efficiently report beam group or beam measurements, reducing reporting overheads and improving beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam grouping is applied for millimeter-wave transmission, then beam management efficiency is improved, but uplink control information reporting complexity increases
Solution Approach 1:
The patent segments the uplink control information reporting into two parts: beam group level information (coarse granularity) and beam level information (fine granularity). The terminal first reports measurement results at beam group level, then selectively reports detailed beam level information only when needed, thereby simplifying the overall reporting process while maintaining beam management efficiency.
Solution Approach 2:
The patent introduces a hierarchical dimension to the reporting structure by organizing beam information into multiple levels (beam group level and beam level). This dimensional organization allows the system to manage complexity by handling information at appropriate granularities, reducing the burden on uplink control information while preserving beam management capabilities.
2Measurement precision
If detailed beam measurement information is reported for all beams, then measurement precision is improved, but reporting overhead increases
Solution Approach 1:
The patent extracts and reports only the essential beam group level measurement information first, which provides sufficient precision for most beam management decisions. Detailed beam level measurement information is extracted and reported separately only when specifically needed, thereby reducing overall reporting overhead while maintaining measurement precision when required.
Solution Approach 2:
Instead of reporting all beam measurement information uniformly, the patent applies partial action by reporting beam level details only for specific beams that require detailed measurement. This selective reporting reduces overhead significantly while maintaining measurement precision for the beams that actually need it.
Data Source
AI summary
A transmission control method includes sending, by a terminal, uplink control information (UCI) in a first format of the UCI to a radio access network device, where the UCI includes at least one of measurement result information of beam groups or information of the beam groups. The measurement result information of the beam groups includes a measurement result of a first beam group and an offset of a measurement result of a second beam group relative to the measurement result of the first beam group. The measurement result of the first beam group is a reference measurement result, and the information of the beam groups indicates a beam group corresponding to at least one of the measurement result of the first beam group or the measurement result of the second beam group.