Sidelink Transmission Resource Indication for Reliable Scheduling
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Solution Overview
Problem
In sidelink communication systems, there is a lack of consistent understanding among transmitters, receivers, and control nodes regarding sidelink transmission methods, leading to reliability issues, resource utilization inefficiencies, and increased interference due to inconsistent resource allocation and HARQ feedback mechanisms.
Innovation Solution
A method for determining indication information in sidelink control signaling is defined, ensuring that receivers, transmitters, and control nodes have a consistent understanding of sidelink transmission methods by using sidelink resource control signaling to provide and indicate transmission resources, thereby reducing scheduling errors and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sidelink control signaling is used to indicate transmission methods without unified determination rules, then transmission flexibility is improved, but reliability and resource utilization deteriorate due to inconsistent understanding among TX UE, RX UE, and control node
Solution Approach 1:
The patent changes the parameter determination rules by establishing that indication information in sidelink control signaling must be determined based on indication information in sidelink resource control signaling. This parameter alignment ensures that TX UE, RX UE, and control node use consistent parameters for transmission method determination, resolving the reliability issue while preserving flexibility through the indication mechanism
Solution Approach 2:
The patent implements a feedback mechanism where the control node provides sidelink resource control signaling with indication information, and this information is reflected in the sidelink control signaling between terminals. This feedback loop ensures all parties have consistent understanding of transmission methods, improving reliability without sacrificing adaptability
2Productivity
If sidelink resource control signaling provides multiple transmission resources without precise indication rules, then resource utilization flexibility is improved, but scheduling errors increase due to inconsistent understanding
Solution Approach 1:
The patent establishes that indication information in sidelink control signaling shall be determined based on indication information in sidelink resource control signaling. This parameter linkage ensures that when multiple transmission resources are provided, all parties consistently understand which resource is indicated, eliminating scheduling errors while maintaining resource utilization flexibility
Solution Approach 2:
The patent uses the indication information in sidelink resource control signaling as an intermediary that mediates between the control node's resource allocation and the terminals' transmission execution. This intermediary ensures precise and consistent interpretation of which transmission resource to use, improving scheduling accuracy without reducing resource utilization efficiency
Data Source
AI summary
A sidelink transmission method and a terminal are provided. The sidelink transmission method includes: determining indication information in sidelink control signaling; and performing transmission based on the indication information. The indication information in the sidelink control signaling is determined based on indication information in sidelink resource control signaling, or the indication information in the sidelink control signaling indicates one transmission resource in a target transmission resource. The target transmission resource is provided by the sidelink resource control signaling.