Event-Triggered CSI Reporting for Priority-Based Beam Management
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Solution Overview
Problem
In 5G NR communications systems, the process of beam management is challenged by the need to efficiently handle multiple event-triggered channel state information (CSI) reports with varying priorities, leading to potential conflicts and resource allocation issues due to overlapping events and limited uplink resources.
Innovation Solution
An apparatus and method for determining the transmission of event-triggered CSI reports based on priority levels, allowing prioritization and efficient resource allocation by considering the timing and priority of events, thereby resolving conflicts and optimizing network communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple event-triggered CSI reports are transmitted simultaneously, then beam management accuracy is improved, but uplink resource conflicts increase and transmission reliability deteriorates
Solution Approach 1:
The patent segments multiple event-triggered CSI reports into different priority levels (e.g., high priority for beam switching events, low priority for routine measurements). This segmentation allows the system to handle critical beam management reports separately from less critical ones, preventing resource conflicts and ensuring reliable transmission of time-sensitive beam information while still maintaining comprehensive beam management accuracy.
2Loss of time
If all event-triggered CSI reports are transmitted at highest priority, then transmission timeliness is improved, but uplink resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different types of CSI reports based on their specific characteristics and urgency. Critical beam switching reports receive high priority with low latency requirements, while routine measurement reports receive lower priority. This differentiated approach ensures timely transmission of critical beam information without wasting uplink resources on less time-sensitive reports, thereby optimizing overall resource utilization efficiency.
3Productivity
If priority-based filtering is applied to CSI reports, then uplink resource efficiency is improved, but report completeness may deteriorate
Solution Approach 1:
The patent implements preliminary action by establishing priority levels and transmission scheduling decisions before actual uplink transmission occurs. The system pre-determines which reports should be transmitted immediately, which can be delayed, and which can be dropped based on priority rules. This preliminary classification ensures that when uplink resources are allocated, the most critical beam management information is already identified and prepared for timely transmission, maintaining report completeness for essential data while improving resource efficiency.
Data Source
AI summary
Example embodiments relate to event-triggered reporting. For example, a method may comprise: obtaining a first priority level associated with a first event-triggered channel state information, CSI, report for being transmitted to a network node; and determining whether to transmit or not, to the network node at a time occasion, the first event-triggered CSI report, or a message associated with the first event-triggered CSI report, based at least in part on the first priority level.