Multi-Transport Block Sidelink Scheduling for Multi-UE Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multi-transport block sidelink scheduling, particularly in scenarios involving direct UE-to-UE communication, which can lead to resource allocation inefficiencies and interference.
Innovation Solution
Implementing a system where UEs receive scheduling information from a network node for transmitting multiple sidelink transport blocks, along with associated receiving UEs, and transmit these blocks based on the allocated resources, while also receiving physical uplink control channel feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional single-transport block scheduling is used in sidelink communications, then the system maintains simple scheduling mechanisms, but resource allocation efficiency deteriorates and interference increases in multi-UE scenarios
Solution Approach 1:
The patent segments the scheduling mechanism into multiple independent transport block scheduling entries within a single downlink control information (DCI) message. Each entry contains resource allocation parameters for a specific transport block, allowing the network node to schedule multiple TBs simultaneously to different UEs or the same UE, thereby improving resource allocation efficiency without requiring multiple separate scheduling messages
Solution Approach 2:
The patent creates a universal scheduling framework where a single DCI message can serve multiple functions by including multiple transport block scheduling entries. This multi-functional DCI structure enables simultaneous scheduling of multiple UEs or multiple transport blocks for a single UE, reducing control signaling overhead and improving resource utilization while maintaining manageable system complexity
2Productivity
If multiple transport blocks are scheduled simultaneously to multiple UEs, then resource utilization improves, but interference management becomes more difficult
Solution Approach 1:
The patent applies local quality by providing UE-specific resource allocation parameters within each transport block scheduling entry. Each UE receives tailored resource allocations including specific time-frequency resources, modulation and coding schemes, and precoding parameters optimized for its channel conditions, thereby enabling high resource utilization while minimizing inter-UE interference through localized resource customization
3Productivity
If scheduling information includes multiple transport block allocations, then transmission efficiency increases, but feedback mechanism complexity increases
Solution Approach 1:
The patent merges multiple individual feedback mechanisms into a unified feedback structure where UEs submit channel state information, acknowledgment, and resource quality feedback for all received transport blocks through a consolidated feedback message. This approach maintains high transmission efficiency by supporting multiple TBs while reducing feedback mechanism complexity through aggregation and unified processing at the network node
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, scheduling information that indicates resource allocations for transmitting multiple sidelink transport blocks (TBs) and one or more receiving UEs associated with the multiple sidelink TBs. The UE may transmit one or more sidelink TBs of the multiple sidelink TBs based at least in part on the resource allocations and the one or more receiving UEs indicated in the scheduling information. Numerous other aspects are described.