Sidelink Resource Configuration with TDD-UL-DL Pattern Signaling
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Solution Overview
Problem
The method of configuring sidelink resources in 3GPP LTE and NR specifications is not explicitly defined, necessitating a clear framework for efficient sidelink resource management in V2X communications.
Innovation Solution
The proposed solution involves generating and transmitting TDD-UL-DL configuration information to user equipment, including DL, UL, and SL patterns, along with flexible resources, to reconfigure UL resources as SL resources for efficient sidelink communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sidelink resources are configured without explicit definition in 3GPP specifications, then flexibility in resource allocation is improved, but resource management efficiency deteriorates
Solution Approach 1:
The patent changes the parameter of resource configuration from implicit to explicit by defining specific TDD-UL-DL configuration parameters including SL pattern information. This explicit definition maintains flexibility through configurable parameters while improving resource management efficiency through structured allocation rules.
Solution Approach 2:
The patent segments the TDD-UL-DL configuration into distinct components: DL pattern information, UL pattern information, and SL pattern information. Each segment can be independently configured and managed, allowing flexible resource allocation while maintaining overall system efficiency through organized resource management.
2Manufacturing precision
If TDD-UL-DL configuration information is transmitted to user equipment, then sidelink resource configuration precision is improved, but signaling overhead increases
Solution Approach 1:
The patent uses the existing TDD-UL-DL configuration framework for multiple purposes: downlink resource allocation, uplink resource allocation, and sidelink resource allocation. This multi-functional approach improves configuration precision while avoiding duplicate signaling for different link types.
Solution Approach 2:
The patent combines sidelink resource configuration with the existing TDD-UL-DL configuration structure. By merging SL pattern information into the established configuration framework, the patent achieves precise sidelink resource configuration without adding separate signaling mechanisms.
3Productivity
If UL resources are reconfigured to SL resources, then sidelink communication efficiency is improved, but uplink resource availability deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where UL resources can be reconfigured to SL resources based on actual communication needs. The TDD-UL-DL configuration allows flexible switching between UL and SL resource usage, optimizing sidelink efficiency while maintaining UL availability when needed.
Solution Approach 2:
The patent uses periodic TDD-UL-DL configuration patterns that alternate between UL and SL resource allocation. This periodic structure enables efficient sidelink communication during designated SL periods while ensuring uplink resources become available again in subsequent periods.
Data Source
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AI summary
An operation method of a base station in a communication system is provided. The method includes generating TDD-uplink-downlink configuration common information including information regarding a DL-UL transmission period, a DL pattern indicating DL resources, a UL pattern indicating UL resources, and a SL pattern indicating SL resources and transmitting to a UE system information including the TDD-UL-DL-configuration common information. Therefore, the performance of the communication system is improved.