Wireless Uplink Cancellation Timing for Scheduling Conflicts
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Solution Overview
Problem
In wireless communication systems, unnecessary uplink transmission cancellations occur due to resource scheduling conflicts between terminals with different priority levels, leading to decreased performance and inefficient resource use.
Innovation Solution
Implement methods and systems for user equipment (UE) to perform timing analysis on control information messages, including downlink control information (DCI) and uplink cancellation information (ULCI), to determine the appropriate sequence and mode of transmission cancellation based on predefined or configured timelines and conditions, thereby avoiding redundant cancellations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission cancellation is implemented to resolve resource scheduling conflicts, then resource utilization efficiency is improved, but unnecessary cancellations of higher-priority services occur leading to decreased performance
Solution Approach 1:
The system performs preliminary timing analysis on control information messages before executing transmission cancellation. By analyzing timeline information and reference time points in advance, the system determines whether cancellations are actually necessary, preventing premature or unnecessary cancellation of higher-priority services while still resolving genuine resource conflicts efficiently
Solution Approach 2:
The system implements a feedback mechanism where the outcome of timing analysis feeds into the cancellation decision process. By continuously monitoring whether cancellations are necessary based on timing relationships, the system adjusts its cancellation behavior to maintain both high resource utilization and service reliability, avoiding the performance degradation caused by unnecessary cancellations
2Reliability
If timing analysis is performed on control information messages, then unnecessary cancellations are avoided, but system complexity increases
Solution Approach 1:
The timing analysis process is segmented into distinct analytical steps: extracting timeline information from control messages, determining reference time points, comparing timing relationships, and making cancellation decisions. This segmentation makes the complex analysis more manageable and implementable while maintaining high cancellation accuracy through systematic processing
Solution Approach 2:
The system performs self-service timing analysis using its own processing capabilities to evaluate control information messages autonomously. By implementing the timing analysis within the terminal device itself rather than relying on external control, the system achieves accurate cancellation decisions while maintaining operational independence and reducing overall system complexity
Data Source
AI summary
Apparatuses, methods, systems, and computer readable media are disclosed. In one aspect, a wireless communication method is disclosed. The method includes receiving, by a first wireless device, one or more control information messages, at least one of the control information messages including a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled, and performing, by the first wireless device, a timing analysis on the at least one of the control information messages including the transmission cancellation indication.