Uplink Resource Priority Selection for Overlapping PUSCH Scheduling
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Solution Overview
Problem
In wireless communication systems, uplink resources can overlap or partially overlap in the time domain, leading to increased data transmission latency, particularly for services with higher latency requirements such as ultra-reliable low-latency communication (URLLC), which existing methods fail to address effectively.
Innovation Solution
A method for selecting uplink transmission resources based on transmission priorities, determining target logical channels and uplink resources that match transmission-format configuration parameters, and using preset resource selection conditions to prioritize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal sends scheduling request signals on all available physical uplink shared channels (PUSCH) to improve scheduling request success rate, then the scheduling request success rate increases, but the network side interference increases and terminal power consumption increases
Solution Approach 1:
The patent applies local quality by making different terminals select different PUSCH resources for scheduling requests. Each terminal determines a specific PUSCH resource based on its assigned cell indices, creating localized differentiation in resource usage. This ensures that while multiple terminals send scheduling requests simultaneously, they do so on different resources, reducing mutual interference while maintaining high success rates.
2Reliability
If a terminal sends scheduling request signals on all available physical uplink shared channels (PUSCH) to improve scheduling request success rate, then the scheduling request success rate increases, but the terminal power consumption increases
Solution Approach 1:
The patent segments the PUSCH resources by dividing them into multiple groups based on cell indices. Each terminal is assigned to specific groups, and only transmits scheduling requests on PUSCH resources within its assigned groups. This segmentation reduces the total number of resources a terminal needs to monitor and transmit on, thereby reducing power consumption while maintaining reliable scheduling request delivery through dedicated resource pools.
3Productivity
If multiple terminals send scheduling request signals on the same physical uplink shared channel simultaneously, then the scheduling request transmission efficiency improves, but the collision rate between scheduling request signals increases
Solution Approach 1:
The patent introduces an additional dimension for resource differentiation by using cell indices to determine PUSCH resource selection. Instead of only varying time-frequency resources, the system adds the dimension of cell-based resource grouping. Terminals select PUSCH resources based on their assigned cell indices, creating a multi-dimensional resource allocation scheme that reduces collisions while maintaining transmission efficiency.
Data Source
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AI summary
The present disclosure relates to an uplink resource selection method, a terminal, and a storage medium. Said method comprises: receiving at least one piece of uplink scheduling information; determining, according to the uplink scheduling information, a transmission priority of uplink resources indicated by the uplink scheduling information; and selecting an uplink resource for data transmission according to the transmission priority of the uplink resources. According to the embodiments of the present disclosure, in case where uplink resources overlap or partially overlap in a time domain, an uplink resource for current transmission is selected according to a transmission priority, so as to satisfy service data transmission requirements with a relatively high delay requirement.