Sidelink Carrier Aggregation Resource Alignment
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Solution Overview
Problem
Current sidelink communication systems face challenges in efficiently managing and aligning resources across multiple component carriers, which affects the performance and reliability of sidelink communication in New Radio (NR) systems, particularly in high-frequency bands.
Innovation Solution
A method and apparatus for supporting carrier aggregation in sidelink communication by aligning sidelink resources across multiple component carriers, including configuring start symbols, resource lengths, cyclic prefixes, and synchronization signal blocks, and transmitting these resources based on received configuration information to ensure synchronized communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple carriers are used for sidelink communication to improve performance, then communication reliability is improved, but resource management complexity increases
Solution Approach 1:
The patent applies homogeneity by aligning resource configurations across multiple component carriers to be uniform. Specifically, it configures the same start symbol, resource length, and cyclic prefix type for sidelink resources on different carriers, creating a homogeneous resource structure that simplifies management while maintaining multi-carrier reliability benefits
Solution Approach 2:
The patent implements universality by establishing a unified resource alignment mechanism that works across all component carriers simultaneously. The base station configures a common reference point and alignment parameters that apply universally to multiple carriers, allowing the same resource management approach to function across diverse carrier frequencies and configurations
2Productivity
If resource alignment across multiple carriers is implemented to improve synchronization, then communication efficiency is improved, but configuration complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring resource alignment parameters through base station signaling before sidelink communication begins. The base station provides advance configuration information including reference point indicators, offset values, and alignment rules that terminals use to automatically align resources across carriers without real-time coordination complexity
Solution Approach 2:
The patent uses the base station as an intermediary to manage the complexity of multi-carrier resource alignment. The base station acts as a central coordinator that configures alignment parameters and provides reference information to terminals, eliminating the need for direct terminal-to-terminal coordination and simplifying the overall configuration process
Data Source
AI summary
The method and apparatus for supporting sidelink carrier aggregation are disclosed. A method of a first terminal may comprise: aligning sidelink (SL) resources in a first component carrier (CC) and a second CC; and performing SL communication with a second terminal using the SL resources aligned within the first CC and the second CC.