NR Uplink Grant Handling for Repetition Bundle Resource Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G NR technologies face challenges in efficiently managing repetition-based uplink grants for Ultra-Reliable Low-Latency Communications (URLLC) due to limitations in logical channel prioritization and resource allocation, leading to suboptimal radio resource utilization.
Innovation Solution
User equipment (UE) determines how to use resources of a repetition-based uplink grant based on criteria related to data packets, such as logical channels, quality of service, and availability of higher priority data, allowing for dynamic adjustment of transmissions within a repetition bundle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the UE repeats PUSCH transmission K>=1 times automatically using pre-assigned resources, then the data delivery delay is reduced and HARQ retransmission is performed autonomously, but the radio resource efficiency deteriorates due to suboptimal resource utilization
Solution Approach 1:
The patent applies dynamics by enabling the UE to dynamically determine whether to repeat transmissions or generate new transmissions based on real-time criteria such as data packet type, QoS requirements, and buffer status. This dynamic decision-making process allows the system to adapt resource usage to actual needs, improving radio resource efficiency while maintaining low latency performance.
Solution Approach 2:
The patent changes the parameter of transmission behavior from fixed repetition to variable transmission mode. The UE evaluates criteria including data packet characteristics, QoS parameters, and buffer status to determine transmission mode, thereby optimizing radio resource efficiency while preserving the low-latency benefit of autonomous HARQ retransmission.
2Productivity
If the UE generates the same data packet for repetition transmission, then the HARQ retransmission is performed autonomously without waiting for base station assignment, but the radio resource efficiency deteriorates due to inability to adapt to higher priority data
Solution Approach 1:
The patent introduces dynamic decision-making at the UE side, where the transmission behavior (repetition vs. new transmission) is determined based on real-time evaluation of data packet characteristics, QoS requirements, and buffer status. This dynamic approach enables autonomous HARQ retransmission to adapt to changing conditions, improving resource efficiency while maintaining high productivity.
Solution Approach 2:
The patent applies local quality by treating different data packets and transmission opportunities differently based on their specific characteristics. The UE evaluates each transmission opportunity individually against defined criteria, allowing high-priority data to receive appropriate treatment while maintaining autonomous operation, thus optimizing both productivity and resource efficiency.
3Speed
If the UE uses pre-assigned resources for repetition transmission, then the latency is reduced, but the radio resource efficiency deteriorates due to rigid resource allocation
Solution Approach 1:
The patent transforms rigid pre-assigned resource allocation into a dynamic system where the UE decides transmission mode based on real-time criteria. This maintains the speed advantage of pre-assigned resources by enabling immediate transmission while improving resource efficiency through adaptive decision-making about whether to repeat or generate new transmissions.
Solution Approach 2:
The patent changes the resource allocation parameter from fixed to variable by introducing criteria-based decision-making. The UE evaluates data packet characteristics, QoS parameters, and buffer status to determine transmission mode, allowing the system to maintain low latency while optimizing radio resource efficiency through parameter-driven adaptation.
Data Source
AI summary
A user equipment, UE, comprising at least one processor, and memory storing instructions that, when executed by the at least one processor, cause the UE at least to determine how to use resources of a repetition-based uplink grant based on a criterion related to at least one data packet prepared for a transmission on resources associated with the repetition-based uplink grant.