Configured Grant Resource Sharing for Low-Latency Small Data
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Solution Overview
Problem
Existing solutions for managing configured grant (CG) resources for small data transmission in wireless communications suffer from inefficiencies due to periodic resource allocation, leading to increased latency and wasted resources, especially when dealing with aperiodic data arrival and shared resources among multiple UEs.
Innovation Solution
A method and system for managing dedicated CG resources that estimate availability based on periodicity, detect trusted devices using signal strength indicators (RSSI), and select the most suitable device for data transmission based on signal power, SNR, and CG periodicity, reserving resources for efficient uplink data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If periodic CG resources are allocated for small data transmission, then resource management is simplified, but latency increases and resource utilization efficiency decreases due to aperiodic data arrival
Solution Approach 1:
The patent applies dynamics by transitioning from static periodic resource allocation to dynamic resource selection. The UE dynamically determines the optimal CG resource for data transmission by evaluating multiple parameters including signal power, SNR, and resource availability, allowing the system to adapt to aperiodic data arrival patterns while maintaining low latency without increasing management complexity
2Productivity
If CG resources are shared among multiple UEs, then resource utilization improves, but reliability decreases due to potential collisions and interference
Solution Approach 1:
The patent applies local quality by enabling each UE to evaluate and select CG resources based on its local channel conditions and priorities. Each UE independently determines the most suitable resource for its data transmission by assessing signal power, SNR, and other local parameters, thereby maintaining high reliability through localized optimization while still utilizing shared resources efficiently across multiple UEs
3Adaptability or versatility
If frequent transitions between RRC idle state and RRC connected state are performed, then data transmission flexibility is improved, but signalling load on the network increases
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously manage its data transmission without requiring frequent network involvement. The UE independently evaluates CG resource availability, determines optimal transmission parameters, and executes data transmission directly, thereby maintaining transmission flexibility while significantly reducing the signalling load on the network through autonomous decision-making
Data Source
AI summary
The present disclosure relates to method for managing a set of dedicated configured grant (CG) resources for small data transmission in a primary device. The method comprises: estimating an availability of one or more dedicated CG resources in the primary device; receiving one or more signal strength indicator (RSSI) values of one or more secondary devices related to the primary; detecting one or more trusted devices from the one or more secondary devices based on the one or more RSSI values; selecting at least one target trusted device from the one or more trusted devices and transmitting a CG resource release message to the target trusted device; and transmitting a small data related to the primary device on one or more available CG resources of the target trusted device.