PUSCH Transport Block Subset Selection for Uplink Resource Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource utilization due to binary rules that either transmit or skip all configured transport blocks (TBs) during physical uplink shared channel (PUSCH) occasions, leading to wasted resources and increased latency when data amounts are variable.
Innovation Solution
Implementing mechanisms that allow user equipment (UEs) to selectively drop subsets of TBs from PUSCH messages, enabling transmission of only a subset of configured TBs based on data availability, with rules determining which TBs to omit and using bit fields in uplink control information (UCI) messages to indicate included TBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If binary rules are used to transmit or skip all configured transport blocks during PUSCH occasions, then system simplicity is maintained, but resource utilization efficiency deteriorates when data amounts are variable
Solution Approach 1:
The patent segments the transport blocks into configurable sets where each PUSCH occasion can transmit a subset of TBs based on data availability. The system divides the maximum TB set into multiple smaller sets, allowing selective transmission of only necessary TBs rather than transmitting all configured TBs or skipping entirely, thereby improving resource utilization while maintaining manageable system complexity through structured segmentation.
Solution Approach 2:
The patent introduces dynamic configuration where the UE can adaptively select which TBs to transmit based on actual data availability. The system transitions from static binary rules to dynamic subset selection, where the UE determines the appropriate TB subset to transmit in each PUSCH occasion, enabling flexible adaptation to varying data conditions and optimizing resource utilization.
2Device complexity
If binary rules require transmitting all configured transport blocks or skipping all, then implementation simplicity is maintained, but latency increases when only a subset of data needs transmission
Solution Approach 1:
The patent segments TBs into configurable sets that can be independently selected for transmission. By dividing the maximum TB set into multiple smaller sets, the system enables selective transmission of only the necessary TBs, allowing the UE to transmit partial data without waiting for all configured TBs, thereby reducing latency while maintaining implementation simplicity through structured segmentation.
Solution Approach 2:
The patent implements dynamic subset selection where the UE can adaptively determine which TBs to transmit based on actual data availability. This dynamic approach allows the system to transmit only necessary TBs in each PUSCH occasion, avoiding unnecessary waiting time and reducing latency while keeping the implementation relatively simple through configured grant mechanisms.
3Device complexity
If all configured transport blocks must be transmitted or none, then rule simplicity is maintained, but resource wastage increases when data amounts are small
Solution Approach 1:
The patent segments the TBs into configurable sets, allowing the UE to select and transmit only the necessary subset based on data availability. This segmentation enables the system to avoid transmitting unnecessary TBs, thereby reducing resource wastage while maintaining rule simplicity through structured configuration of TB sets and defined selection criteria.
Solution Approach 2:
The patent applies partial action by enabling the UE to transmit only the necessary subset of TBs rather than all configured TBs. The system allows partial transmission when data amounts are small, avoiding excessive action that would waste resources, while maintaining relatively simple rules through configured grant mechanisms that define how subsets are selected.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive radio resource control (RRC) signaling that indicates (e.g., schedules, configures) resources for a set of physical uplink control channel (PUSCH) transmission occasions, each of the PUSCH transmission occasions configured with a capacity for transmission of a maximum quantity of transport blocks (TBs), the maximum quantity including two or more TBs. The UE may generate a PUSCH message in accordance with the RRC signaling, where the PUSCH message includes one or more TBs, the one or more TBs being less than the maximum quantity of TBs, and may transmit the PUSCH message within a PUSCH transmission occasion of the set of PUSCH transmission occasions.