CSI Report Prioritization Across Colliding Physical-Channel Resources
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Solution Overview
Problem
In wireless communication systems, UEs often face conflicts when multiple CSI reports are allocated for transmission using the same resources, leading to potential dropping of high-priority communications.
Innovation Solution
The UE prioritizes CSI reports based on various criteria such as the order of receiving CSI RSs, target time periods, and the number of CSI RSs involved to resolve conflicts and ensure high-priority communications are not dropped.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple CSI reports are allocated for transmission using the same resources, then the quantity of CSI reports transmitted is increased, but the reliability of high-priority communications deteriorates due to potential dropping
Solution Approach 1:
The patent segments the transmission of multiple CSI reports by dividing them into different priority groups. When resource conflicts occur, the system segments the reports and transmits only the high-priority ones, ensuring that critical communications are not dropped while still attempting to transmit lower-priority reports in alternative resources or at different times.
Solution Approach 2:
The patent applies local quality by assigning different priority levels to different CSI reports based on their importance. The system treats high-priority reports differently from low-priority reports, allocating transmission resources preferentially to high-priority reports when conflicts arise, thereby ensuring local optimization of communication reliability for critical data.
2Loss of information
If the UE transmits all CSI reports simultaneously, then the completeness of channel quality information is improved, but the device complexity increases due to resource management conflicts
Solution Approach 1:
The patent applies preliminary action by pre-establishing priority criteria and resource allocation rules for CSI reports before conflicts occur. The UE is configured with prioritization rules in advance, allowing it to automatically resolve resource conflicts without complex real-time decision-making, thereby reducing device complexity while maintaining information completeness through systematic resource management.
Solution Approach 2:
The patent changes the parameter of resource allocation by introducing priority-based resource assignment. Instead of treating all CSI reports equally, the system modifies the resource allocation parameters to favor high-priority reports, allowing the UE to manage multiple reports with different resource assignments, thus reducing conflict complexity while preserving necessary information.
3Reliability
If the UE prioritizes high-priority CSI reports, then the reliability of critical communications is improved, but the quantity of transmitted CSI reports decreases due to resource allocation
Solution Approach 1:
The patent merges the transmission of high-priority and low-priority CSI reports by allocating different time-frequency resources to each priority level. This allows the system to transmit both high-priority reports (ensuring reliability) and low-priority reports (maintaining productivity) simultaneously without conflict, effectively combining the benefits of both approaches through resource multiplexing.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, for an occasion of a resource of a physical channel, a collision of a first channel state information (CSI) report associated with a first target time period and a second CSI report a second target time period; prioritize one of the first CSI report or the second CSI report based at least in part on one or more prioritization criteria; and transmit the one of the first CSI report or the second CSI report based at least in part on prioritizing the one of the first CSI report or the second CSI report. Numerous other aspects are provided.