Uplink Resource Indication for Precise Time-Frequency Preemption
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Solution Overview
Problem
Existing wireless communication systems lack effective methods for accurately notifying terminals of preempted time and frequency domain resources, leading to inefficiency and poor reliability in resource allocation for high-priority traffic like URLLC, which is highly random and has a low probability of recurring.
Innovation Solution
A resource indication method that sends first resource indication information to user terminals, indicating uplink data transmission mechanisms, including time and frequency domain patterns, to refine resource preemption information, thereby improving efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resources are allocated to high-priority traffic (URLLC) by preempting resources allocated to low-priority traffic, then transmission reliability and latency requirements for high-priority traffic are met, but the efficiency of resource indication to terminals deteriorates due to lack of accurate notification methods
Solution Approach 1:
The patent segments the resource indication process into two distinct parts: (1) indicating the time domain pattern of preempted resources, and (2) indicating the frequency domain resources within those time patterns. This segmentation allows for more precise and efficient resource indication by dividing the complex indication task into manageable components, thereby improving resource indication efficiency while maintaining transmission reliability for high-priority traffic
Solution Approach 2:
The patent introduces a time domain pattern dimension to the resource indication mechanism. By indicating not only frequency domain resources but also the time domain patterns in which preemption occurs, the system creates a two-dimensional resource indication framework. This dimensional expansion enables more accurate notification to terminals about preempted resources, resolving the contradiction between reliability and indication efficiency
2Loss of time
If resource preemption is implemented for high-priority traffic, then transmission latency is reduced, but measurement precision of preempted resources deteriorates due to ineffective notification methods
Solution Approach 1:
The patent divides the resource preemption indication into time domain pattern indication and frequency domain resource indication. This segmentation enables precise specification of both when preemption occurs (time patterns) and what resources are preempted (frequency resources), thereby improving measurement precision of preempted resources while maintaining low transmission latency for high-priority traffic
Solution Approach 2:
The patent replaces the conventional single-dimension resource indication mechanism with a enhanced two-dimensional indication system that incorporates time domain patterns. This substitution transforms the indication mechanism from merely frequency-based to a combined time-frequency framework, improving the accuracy of resource preemption notification without increasing transmission latency
Data Source
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AI summary
Provided are a resource indication method and apparatus, a serving node and a storage medium. The resource indication method includes: sending first resource indication information to a user terminal, where the first resource indication information is used for indicating an uplink data transmission mechanism to the user terminal; and receiving uplink data sent by the user terminal.