Pro-UE Sidelink Grant for Resource Allocation
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in managing sidelink communication resources efficiently, leading to congestion and interference among user equipment (UEs) due to the lack of effective scheduling mechanisms, which affects quality of service and spectrum utilization.
Innovation Solution
Implementing a central scheduler that designates a UE to manage sidelink communications, transmitting grants and control information to prioritize sidelink transmissions and reserve resources, thereby reducing conflicts and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a distributed resource allocation approach is used in sidelink communication, then device autonomy and flexibility are improved, but resource conflicts and interference increase leading to congestion
Solution Approach 1:
The patent introduces a sidelink grant message as an intermediary mechanism that mediates resource allocation between UEs. The grant message contains resource allocation information transmitted from one UE to another, enabling coordinated resource usage without centralized control. This intermediary structure allows UEs to autonomously negotiate and allocate resources while preventing conflicts through pre-coordinated resource reservations.
2Reliability
If sidelink transmissions are prioritized over grant transmissions, then quality of service for sidelink communication is improved, but grant transmission reliability may be affected
Solution Approach 1:
The patent implements preliminary resource reservation through the sidelink grant message, which reserves resources for future sidelink transmissions before actual data transmission occurs. By pre-allocating and reserving resources in advance, the system ensures that sidelink transmissions have guaranteed resources available, preventing delays and conflicts during actual data transmission while maintaining grant transmission reliability through proper resource coordination.
Data Source
AI summary
This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for a UE scheduling grant based on a pro-UE implementation. A first UE may receive, from one or more UEs, a scheduling request for sidelink resources, and transmit, to the one or more UEs, a sidelink grant using resources for sidelink grant transmissions. The one or more UEs may transmit a sidelink transmission based on the sidelink grant.