Small Data Transmission Connection Resume Handling
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Solution Overview
Problem
Existing communication technologies face challenges in efficiently managing small and infrequent data transmission in inactive terminal devices, leading to unnecessary power consumption and signaling overhead.
Innovation Solution
The proposed solution involves methods and devices that enable communication during small data transmission (SDT) procedures in inactive terminal devices, including handling connection reject messages, initiating second connection resume procedures, and managing configured grant resources to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device resumes connection to transmit small data, then data transmission is enabled, but power consumption and signaling overhead increase
Solution Approach 1:
The patent segments data transmission into two distinct modes: Small Data Transmission (SDT) for small packets while inactive, and full connection resume for large data. This segmentation allows the system to use the minimal necessary resources (SDT) for small data, avoiding the energy cost of full connection resume, while still providing full capability when needed.
Solution Approach 2:
The patent applies partial action by implementing SDT which provides just enough connectivity for small data transmission without the complete overhead of full connection resume. This partial action (SDT) suffices for small data needs, reducing energy consumption while maintaining adequate functionality.
2Productivity
If the terminal device resumes connection to transmit small data, then data transmission is enabled, but signaling overhead increases
Solution Approach 1:
The patent segments the transmission protocol into SDT mode for small data and full connection mode for large data. This segmentation reduces signaling overhead for small data by using a simplified SDT procedure that omits unnecessary connection resume signaling, while preserving full signaling capability when required.
Solution Approach 2:
The patent uses partial action by implementing SDT which provides minimal necessary signaling for small data transmission. This partial signaling approach reduces overhead compared to full connection resume, while still enabling adequate data transmission functionality for small packets.
3Productivity
If the terminal device initiates a second connection resume procedure after receiving connection reject, then data transmission can proceed, but procedure complexity increases
Solution Approach 1:
The patent applies preliminary action by having the terminal device prepare and initiate a second connection resume procedure as a pre-planned fallback before the first procedure fully completes. This preliminary preparation of alternative actions ensures smooth transition and data transmission completion while managing complexity through structured procedure handling.
Solution Approach 2:
The patent implements feedback by monitoring the connection resume procedure outcome (connection reject message) and using this feedback to trigger the second connection resume procedure. This feedback mechanism enables automatic adaptation to ensure data transmission completion while managing complexity through condition-based procedure initiation.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. The method comprises if receiving, at a terminal device and from a network device, a connection reject message while the terminal device is performing a first connection resume procedure initiated for small data transmission (SDT); and initiating a second connection resume procedure. In this way, the SDT procedure can be rejected in case of network congestion.