Sidelink Resource Pool Configuration for LTE-NR Subcarrier Adaptation
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Solution Overview
Problem
Current sidelink communication technologies are not adaptable to the different requirements of LTE and NR systems, particularly in terms of subcarrier spacing, which limits their effectiveness in supporting higher carrier frequencies and increased data rates.
Innovation Solution
A method and device for transmitting sidelink signals that determine and adjust the subcarrier spacing and cyclic prefix for Physical Sidelink Control CHannel (PSCCH) and Physical Sidelink Shared CHannel (PSSCH) based on traffic coverage and congestion levels, allowing multiple subcarrier spacings in the PSSCH resource pool and optimizing transmission modes to enhance data transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed sidelink signal transmission scheme is used, then the implementation is simple, but it cannot adapt to different requirements of LTE and NR systems
Solution Approach 1:
The patent applies dynamics by making the sidelink transmission scheme flexible and adaptable. The base station dynamically configures different transmission schemes for different UEs based on their specific requirements (LTE or NR system). This allows the system to transition from a fixed to a dynamic configuration, resolving the contradiction between simplicity and adaptability.
Solution Approach 2:
The patent changes key transmission parameters (such as subcarrier spacing, cyclic prefix length, resource allocation) based on the specific system requirements. By allowing parameter customization for different UEs and systems, the patent achieves adaptability to both LTE and NR systems while maintaining manageable complexity through standardized parameter sets.
2Productivity
If traditional sidelink communication is used, then the implementation is straightforward, but it cannot support higher carrier frequencies and increased data rates
Solution Approach 1:
The patent creates a universal sidelink transmission framework that can serve multiple functions and systems. By designing a flexible configuration mechanism that accommodates both LTE and NR requirements, the patent enables a single system to support multiple carrier frequencies and data rate requirements, achieving both high productivity and broad compatibility.
Solution Approach 2:
The patent enables support for higher carrier frequencies and increased data rates by allowing parameter changes in the transmission scheme. Specifically, it configures appropriate subcarrier spacings and resource allocations based on the carrier frequency and data rate requirements, while maintaining compatibility with different systems through standardized configuration procedures.
3Manufacturing precision
If separate resource pools are configured for each UE, then resource allocation is precise, but the system complexity increases
Solution Approach 1:
The patent applies local quality by configuring resource pools with specific characteristics tailored to each UE's requirements. Instead of using a uniform resource pool for all UEs, the base station assigns resource pools with appropriate parameters (subcarrier spacing, cyclic prefix, resource blocks) according to each UE's specific system requirements and channel conditions, achieving precise allocation while managing complexity through localized optimization.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a method for transmitting a sidelink signal. The method comprises: determining a Physical Sidelink Control CHannel (PSCCH) transmission mode allowed in a PSCCH transmission resource pool and a Physical Sidelink Shared CHannel (PSSCH) transmission mode allowed in a PSSCH transmission resource pool, respectively; determining a resource for transmitting a PSCCH and a resource for transmitting a PSSCH from the PSCCH transmission resource pool and the PSSCH transmission resource pool respectively; and transmitting the PSCCH according to the determined PSCCH transmission mode and the resource for transmitting the PSCCH and transmitting the PSSCH according to the determined PSSCH transmission mode and the resource for transmitting the PSSCH. The present disclosure also provides a corresponding device and storage media.