Intra-UE Transmission Switching With Capability-Based Timing
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing intra-user equipment transmissions, particularly in unlicensed or shared bands, leading to potential communication failures due to the need to cancel low-priority transmissions and initiate high-priority ones, which can result in resource wastage and latency issues.
Innovation Solution
A method and apparatus for user equipment (UE) to receive an indication to modify a first data transmission with a second data transmission, identifying a single time to cancel the first and initiate the second, based on UE capabilities, thereby optimizing transmission timing to maintain channel access and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the UE cancels a low-priority transmission to initiate a high-priority transmission, then the latency for high-priority data is reduced, but communication failures may occur due to timing conflicts
Solution Approach 1:
The patent implements dynamic transmission timing adjustment by determining a cancellation time for the first transmission and a start time for the second transmission based on UE capabilities. The time gap between cancellation and start is dynamically optimized to ensure the UE can reliably switch transmissions without communication failures, while minimizing overall latency.
Solution Approach 2:
The patent performs preliminary determination of transmission timing parameters before actual transmission occurs. The UE identifies the cancellation time and start time in advance based on its capabilities, ensuring that the transition between transmissions is smooth and reliable without causing communication failures.
2Reliability
If the UE performs channel sensing before transmission, then transmission reliability is improved, but resource consumption and latency increase
Solution Approach 1:
The patent extracts the channel sensing step from the transmission process for prioritized data. When the UE has an active grant for high-priority transmission, it skips the channel sensing procedure and directly transmits, thereby reducing energy consumption and latency while maintaining reliability through the pre-determined timing mechanism.
3Reliability
If the UE maintains a time gap between canceling first transmission and starting second transmission, then transmission reliability is improved, but resource wastage and latency occur
Solution Approach 1:
The patent optimizes the time gap parameter between transmission cancellation and new transmission start by determining specific cancellation and start times based on UE capabilities. This parameter optimization ensures the gap is long enough for reliable transmission switching but short enough to minimize resource wastage and maintain high transmission efficiency.
4Adaptability or versatility
If the UE supports multiple simultaneous transmissions, then transmission flexibility is improved, but device complexity increases
Solution Approach 1:
The patent segments the transmission management into distinct time intervals: a cancellation period for the first transmission and a start period for the second transmission. This temporal segmentation allows the UE to handle multiple transmissions systematically based on its capabilities, improving flexibility while managing device complexity through structured time division.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may receive an indication that a transmission of first data is to be modified and that second data is to be transmitted in place of a portion of the transmission of the first data; and identify a single time at which the transmission of the first data is to be canceled and transmission of the second data can begin, based at least in part on capabilities of the UE. Numerous other aspects are provided.