Uplink Channel Priority Rules for Time-Domain Transmission Conflicts
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Solution Overview
Problem
In the NR system, simultaneous transmission of multiple uplink channels can lead to conflicts in the time domain, causing ambiguity in how a terminal device should proceed with channel transmission, as existing solutions do not adequately address priority determination in such scenarios.
Innovation Solution
A method for determining priorities among conflicting uplink channels based on transmission start time, duration, and carried information, ensuring that channels with earlier start times, shorter durations, or higher priority information are given precedence, thereby resolving ambiguity and improving communication effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple uplink channels are transmitted simultaneously in the NR system, then the system can meet diversified service requirements (eMBB, URLLC, mMTC), but transmission conflicts occur in the time domain causing ambiguous terminal behavior
Solution Approach 1:
The patent applies parameter changes by establishing a priority determination mechanism based on multiple parameters including service type (eMBB, URLLC, mMTC), transmission timing, and resource allocation. This resolves the technical contradiction by transforming the ambiguous conflict scenario into a structured decision process where channels are prioritized according to predefined rules, ensuring reliable transmission handling while maintaining support for diversified services
2Ease of operation
If different transmission start times and durations are configured for uplink channels, then flexible resource allocation is achieved, but time domain conflicts arise when channels overlap
Solution Approach 1:
The patent applies preliminary action by pre-establishing priority determination rules before conflicts occur. The terminal device is configured with predefined priorities for different uplink channel types and service scenarios, allowing it to automatically resolve conflicts without complex real-time calculations. This maintains resource allocation flexibility while reducing the actual conflict resolution complexity during transmission
3Reliability
If existing collision handling solutions are applied, then some conflict scenarios are addressed, but ambiguity remains in determining transmission priorities among multiple overlapping channels
Solution Approach 1:
The patent applies segmentation by breaking down the priority determination process into distinct segments or stages: first determining service type priorities (eMBB, URLLC, mMTC), then evaluating transmission timing, and finally applying resource allocation rules. This segmented approach eliminates ambiguity by providing a clear hierarchical decision framework, ensuring that priority information is preserved and transmitted channels are handled reliably
Data Source
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AI summary
An uplink transmission method and a device are provided. The method includes: determining, in a case that transmissions of at least two uplink channels conflict in a time domain, priorities of the at least two uplink channels according to at least one of a transmission-related time duration, a transmission start time or carried information; and performing uplink transmission according to the priorities of the at least two uplink channels.