Single-DCI Sidelink Grants for Multiple Transport Blocks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource allocation for multiple transport blocks (TBs) in sidelink transmissions, leading to increased latency and signaling overhead due to the need for multiple DCI messages.
Innovation Solution
A UE requests resource modifications for sidelink communications based on multiple TBs, allowing a network entity to allocate resources via a single DCI message, enabling flexible management of TB transmissions and receptions using granted resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple DCI grants are used to transmit multiple TBs via sidelink, then the UE can communicate multiple transport blocks, but the latency and signaling overhead increase
Solution Approach 1:
The patent combines multiple TB transmissions into a single DCI grant by merging the resource allocation indicators for multiple transport blocks into one Downlink Control Information message. This allows the UE to receive resource allocations for multiple TBs simultaneously rather than requiring separate DCI messages for each TB, thereby reducing latency and signaling overhead while maintaining the ability to communicate multiple transport blocks via sidelink
2Productivity
If multiple DCI grants are received for multiple TBs, then complete TB communication is enabled, but signaling overhead increases
Solution Approach 1:
The patent merges resource allocation information for multiple TBs into a single DCI grant by incorporating multiple resource indicator fields within one Downlink Control Information message. This consolidation reduces the number of separate signaling messages required while ensuring that all necessary resource allocation information for complete TB communication is conveyed to the UE in a unified manner
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may transmit to a network entity a first signal requesting a modification of allocated resources for sidelink transmission, sidelink reception, or both based on multiple transport blocks (TBs) for communication for the UE. The UE may receive, from the network entity, a downlink control information (DCI) signal granting one or more resources to the UE for sidelink communications based on the first signal. In some cases, the DCI signal may dynamically or periodically grant one or more resources for sidelink transmission, one or more resources for sidelink reception, or both for the UE. The UE may use the granted resources to communicate multiple TBs with one or more other UEs based on the DCI signal. For example, a single DCI message may allocate resources for sidelink communication of multiple TBs.