User Equipment Sidelink SCI Symbol Determination
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Solution Overview
Problem
Current V2X communication technologies face challenges in determining the optimal number of coded modulation symbols for second-stage sidelink control information transmission in 5G NR networks, affecting the efficiency and reliability of vehicle-to-everything (V2X) communications, particularly in high-speed and high-node density environments.
Innovation Solution
A method for user equipment to determine the number of coded modulation symbols for second-stage sidelink control information transmission based on sidelink resource pool configuration information, including the number of subcarriers carrying the physical sidelink control channel, DMRS, CSI-RS, and PT-RS, ensuring efficient resource allocation and reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of coded modulation symbols for second-stage SCI is increased to improve communication reliability, then the reliability of V2X communication is improved, but the resource allocation efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the number of coded modulation symbols for second-stage SCI based on channel conditions and communication requirements. The system determines the optimal number of symbols (Q'SCI2) by considering factors such as subcarrier spacing, resource pool configuration, and communication reliability requirements, thereby resolving the contradiction between reliability and resource efficiency through adaptive parameter modification
Solution Approach 2:
The patent implements dynamics by making the number of coded modulation symbols configurable and adjustable rather than fixed. The system allows dynamic determination of Q'SCI2 based on real-time communication needs, channel conditions, and resource availability, enabling the system to adapt between reliability-oriented and efficiency-oriented modes as needed
2Reliability
If more subcarriers are allocated for PSCCH transmission to improve control information reliability, then the reliability of control information transmission is improved, but the overall communication productivity deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the resource allocation for different types of control information. Instead of uniformly allocating resources, the system determines specific numbers of subcarriers (MSCPSCCH(l)) and coded modulation symbols (Q'SCI2) tailored to the requirements of second-stage SCI transmission, optimizing resources for where they are most needed while maintaining overall system efficiency
Data Source
AI summary
The present invention provides a method performed by user equipment, and user equipment. The method includes: determining sidelink resource pool configuration information; and determining the number Q′SCI2 of coded modulation symbols of second stage SCI. The second stage SCI is second stage sidelink control information carried by a physical sidelink shared channel (PSSCH).