Priority-Based Configured Transmission Cancellation in Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing configured transmissions that overlap with dynamically scheduled transmissions, often resulting in automatic cancellation regardless of priority, which can lead to suboptimal resource allocation and performance.
Innovation Solution
Implementing a priority-based decision mechanism for user equipment (UE) to determine whether to cancel or maintain configured transmissions when they overlap with dynamically scheduled transmissions, based on the priority of the configured transmission and associated uplink or downlink transmissions, considering the time threshold between downlink control information and the start of the configured transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If configured transmissions are automatically cancelled when overlapping with dynamically scheduled transmissions, then resource allocation simplicity is improved, but transmission reliability deteriorates due to unnecessary cancellations of high-priority transmissions
Solution Approach 1:
The patent introduces a priority parameter (priority indicator) associated with configured transmissions to differentiate between high-priority and low-priority transmissions. When a configured transmission has high priority, it is maintained even when overlapping with dynamically scheduled transmissions, whereas low-priority transmissions are cancelled. This parameter-based differentiation resolves the contradiction by enabling reliable transmission of critical data while maintaining simple automatic cancellation for non-critical transmissions.
2Reliability
If priority-based decision mechanisms are implemented, then transmission reliability is improved, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent applies preliminary action by pre-configuring priority indicators for configured transmissions before they occur. The network entity assigns priority levels to configured transmissions in advance, allowing the UE to make rapid decisions based on pre-established criteria rather than performing complex real-time analysis. This reduces device complexity while maintaining transmission reliability, as the decision logic is simplified to compare pre-assigned priorities.
Solution Approach 2:
The UE autonomously determines whether to cancel or maintain configured transmissions based on the priority indicator and overlap conditions, without requiring complex network intervention or coordination. This self-service approach enables the UE to make independent decisions, reducing overall system complexity while ensuring reliable transmission of high-priority data through locally executed priority-based logic.
3Productivity
If all configured transmissions are cancelled upon overlap, then resource allocation efficiency is improved, but loss of information increases due to cancellation of important transmissions
Solution Approach 1:
The patent applies local quality by treating different configured transmissions differently based on their specific priority characteristics. Instead of applying a uniform cancellation policy to all configured transmissions, the system selectively maintains high-priority transmissions (such as those carrying critical control information or time-sensitive data) while cancelling low-priority transmissions. This localized differentiation prevents information loss for critical transmissions while maintaining resource allocation efficiency for non-critical ones.
Data Source
AI summary
Aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms for priority based decisions regarding when to cancel or maintain configured transmissions that overlap with dynamically scheduled transmissions. An example method performed by a user equipment (UE) generally includes determining that a configured transmission overlaps in time with a dynamically scheduled transmission, and deciding whether to cancel or maintain the configured transmission based on a priority of at least one of the configured transmission or an uplink transmission associated with the dynamically scheduled transmission when the time between an end of a downlink control information (DCI) that scheduled the dynamically scheduled transmission and a start of the configured transmission is greater than a threshold processing time.