Sidelink Resource Configuration for Flexible PSFCH Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sidelink communication systems in LTE and NR are designed for licensed spectrum and need improvements to meet regulatory requirements for communication in unlicensed spectrum, particularly in the flexibility of resource configuration and allocation for sidelink communication, specifically addressing the sidelink communication in unlicensed spectrum.
Innovation Solution
A method and device for configuring sidelink communication resources, including obtaining and transmitting configuration information for Physical Sidelink Feedback Channels (PSFCH) to enhance resource allocation flexibility, especially in unlicensed spectrum, by indicating PSFCH format, frequency and time domain resources, and transmission opportunities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current sidelink communication is used in unlicensed spectrum, then spectral efficiency and transmission delay are improved, but regulatory requirements cannot be met
Solution Approach 1:
The patent applies dynamics by making the resource configuration flexible and adaptable. The network device dynamically configures PSFCH transmission opportunities based on actual communication needs, allowing the system to adjust between different transmission modes (with or without PSFCH) depending on regulatory requirements and performance needs, thus resolving the contradiction between spectral efficiency and regulatory compliance
Solution Approach 2:
The patent changes key parameters including the number of PSFCH transmission opportunities (X), PSFCH format types, time domain resources, and frequency domain resources. By varying these parameters, the system can meet different regulatory requirements while maintaining high spectral efficiency and low transmission delay characteristics
2Reliability
If flexible resource configuration is implemented for unlicensed spectrum, then regulatory compliance is improved, but device complexity increases
Solution Approach 1:
The patent segments the resource configuration into distinct components: first configuration information for basic sidelink resources, second configuration information for PSFCH-specific parameters, and tenth indication information for transmission opportunities. This segmentation allows the complex configuration to be managed through modular, organized parameters, reducing the practical complexity while maintaining flexibility
Solution Approach 2:
The configuration information structure is designed to be universal, serving both licensed and unlicensed spectrum scenarios. The same configuration framework can accommodate different regulatory requirements by adjusting parameters like PSFCH transmission opportunities and formats, eliminating the need for separate complex configuration systems for different spectrum types
3Reliability
If multiple PSFCH transmission opportunities are provided, then transmission reliability is improved, but time consumption increases
Solution Approach 1:
The patent implements periodic PSFCH transmission opportunities where feedback information can be transmitted at multiple scheduled occasions. This periodic structure allows the receiver to transmit feedback at the most appropriate time based on channel conditions and regulatory requirements, achieving high reliability without requiring continuous transmission time
Solution Approach 2:
The system dynamically determines the number of PSFCH transmission opportunities (X) based on actual communication needs. When high reliability is required, multiple opportunities are provided; when time is critical, fewer opportunities are used. This dynamic adjustment resolves the contradiction between reliability and time consumption
Data Source
Figure 1~3A
Figure 3B~5
Figure 6
AI summary
The embodiments of the present disclosure provide a resource configuration method, a device, and a storage medium. The method includes: obtaining, by a terminal device, first configuration information, the first configuration information being used for configuring sidelink communication resources; obtaining, by the terminal device, a structure of a resource allocation unit according to the first configuration information; and allocating, by the terminal device, one or more resource allocation units for sidelink communication of the terminal device. In this way, the flexibility of resource allocation can be improved.