UE-Initiated Beam Reporting Using Quality Thresholds and Counters
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Solution Overview
Problem
Existing wireless communication systems face issues with outdated beam reporting and excessive signaling overhead due to frequent network-configured beam reporting, leading to performance degradation and inefficient resource utilization.
Innovation Solution
Implementing UE-initiated beam reporting based on quality comparisons between current and candidate beams, with a counter mechanism to manage beam changes, reducing unnecessary reporting and enhancing timely beam adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If network-configured beam reporting is implemented frequently, then beam management timeliness is improved, but signaling overhead increases
Solution Approach 1:
The UE autonomously determines when beam reporting is needed by comparing current beam quality against threshold values, eliminating the need for frequent network-configured reporting triggers. The UE initiates reporting only when beam quality degrades below a threshold or improves above a threshold, making the system self-regulating based on actual beam conditions rather than following network-scheduled reporting intervals.
Solution Approach 2:
The reporting mechanism dynamically adjusts to actual beam quality conditions rather than operating on a fixed schedule. The UE continuously monitors beam quality and adaptively triggers reporting events based on real-time comparisons with configured thresholds, allowing the system to respond dynamically to changing channel conditions while minimizing unnecessary reporting.
2Measurement precision
If network-configured beam reporting is implemented frequently, then beam management accuracy is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The UE autonomously monitors beam quality metrics and independently determines when reporting conditions are met, eliminating wasteful network-configured reporting that occurs regardless of actual beam conditions. This self-service approach ensures reporting only happens when beam quality changes warrant attention, improving resource utilization while maintaining accuracy.
Solution Approach 2:
Instead of implementing continuous or frequently-scheduled reporting, the system uses partial action by triggering reports only when necessary - specifically when beam quality crosses configured thresholds. This selective reporting approach maintains beam management accuracy while significantly reducing the volume of reporting transmissions compared to exhaustive periodic reporting.
3Quantity of substance
If beam reporting is triggered by quality comparison, then reporting overhead is reduced, but beam change responsiveness may be delayed
Solution Approach 1:
The network pre-configures the UE with threshold values (first threshold for degradation, second threshold for improvement) and reporting configurations before beam quality issues arise. The UE has these parameters ready and can immediately trigger reporting when beam quality crosses these pre-set thresholds, eliminating delays associated with waiting for network configuration during rapid beam changes.
Solution Approach 2:
The system implements continuous feedback by having the UE monitor beam quality and compare it against configured thresholds in real-time. When beam quality crosses a threshold, the UE immediately triggers a report, creating a closed-loop feedback mechanism that responds quickly to beam conditions while maintaining low overhead by reporting only when thresholds are crossed rather than continuously.
4Quantity of substance
If counter mechanism for beam changes is implemented, then unnecessary reporting is reduced, but system complexity increases
Solution Approach 1:
The UE autonomously manages beam reporting by maintaining and updating its own counter based on beam quality comparisons. The counter increments when beam quality degrades below the first threshold and resets when it improves above the second threshold. This self-service counter management eliminates unnecessary reporting while keeping the implementation simple and distributed at the UE level rather than centralized in the network.
Data Source
AI summary
Methods, systems, and apparatuses are provided for handling User Equipment (UE)-initiated beam reporting in a wireless communication system, wherein a method of a UE comprises being configured with a first UE-initiated beam reporting associated with a Serving Cell, wherein the first UE-initiated beam reporting is (initiated or triggered) based on comparison between a quality of a current beam of the Serving Cell and a quality of a candidate beam of the Serving Cell, maintaining a counter associated with the first UE-initiated beam reporting of the Serving Cell, and resetting the counter in response to a beam change of the current beam on the Serving Cell.