LTE NR Sidelink Priority Configuration for Collision Resolution
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Solution Overview
Problem
In wireless communication systems, particularly in sidelink communication between terminals, there is a need to determine a reference for transmitting or receiving LTE-based and NR-based sidelink signals simultaneously, as existing methods lack a clear prioritization mechanism for these signals.
Innovation Solution
A method and apparatus for configuring priorities between LTE and NR sidelink signals, allowing a terminal with both LTE and NR sidelink functions to determine the physical channel and signal to transmit or receive based on the configured priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal simultaneously supports both LTE and NR sidelink functions, then the terminal can transmit or receive both LTE-based and NR-based sidelink signals, but there is no clear prioritization mechanism when resource collision occurs between these signals
Solution Approach 1:
The patent applies parameter changes by introducing priority values as a new parameter to differentiate between LTE and NR sidelink signals. The network configures priority information for different signal types, and the terminal uses these priority parameters to determine transmission behavior when resource collision occurs, resolving the complexity of managing dual sidelink support without clear prioritization
2Productivity
If the terminal transmits both LTE and NR sidelink signals simultaneously, then more diverse services can be provided, but resource collision between the two signal types cannot be avoided
Solution Approach 1:
The patent applies inversion by reversing the traditional approach of avoiding resource collision through resource allocation. Instead of the network carefully allocating non-overlapping resources, the patent allows resource overlap to occur and resolves conflicts through priority-based dropping decisions at the terminal side. This inverted approach maintains service diversity while ensuring reliable transmission of high-priority signals
3Reliability
If the terminal drops one signal to transmit another, then resource collision is resolved, but transmission efficiency is reduced due to signal dropping
Solution Approach 1:
The patent applies self-service by enabling the terminal to autonomously resolve resource collision without extensive network intervention. The terminal uses locally stored priority information to automatically determine which signal to drop and which to transmit, resolving conflicts efficiently while maintaining reliability for high-priority signals and minimizing unnecessary drops that would reduce overall transmission efficiency
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure relates to a transmission method of a terminal comprising: determining a simultaneous transmission of first and second communication-based sidelink signals; determining a priority of the first and second communication-based sidelink signals in case that the simultaneous transmission is configured; and processing the first and second communication-based sidelink signals on the basis of the priority.