Small Data Transmission Configuration for Downlink Delivery
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Solution Overview
Problem
In current wireless communication systems, wireless mobile devices are required to establish a connection with the network for data transmission regardless of the amount of data, leading to inefficiencies and potential challenges in managing small data transmissions.
Innovation Solution
A data transmission method and apparatus that involves receiving and sending specific information related to the configuration status of small data transmission for terminal devices, allowing core network devices to determine whether to transmit buffered downlink information based on parameters such as configuration status, extended discontinuous reception cycles, and quality of service flow identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless mobile devices establish a connection with the network for data transmission, then data can be transmitted reliably, but connection establishment overhead increases and network resources are consumed unnecessarily for small data transmissions
Solution Approach 1:
The patent segments data transmission into two distinct modes: small data transmission (SDT) for small packets and connection-based transmission for large packets. The access network device determines the transmission mode based on data size thresholds, allowing small data to be transmitted without full connection establishment, thereby reducing overhead while maintaining reliability for appropriate data sizes
Solution Approach 2:
The patent introduces configurable parameters including data size thresholds, extended discontinuous reception (eDRX) cycle parameters, and SDT configuration parameters that can be adjusted based on network conditions and device capabilities. These parameter changes enable flexible optimization of connection management and small data transmission efficiency
2Productivity
If connection establishment is required for all data transmissions, then network control is maintained, but transmission efficiency decreases due to repeated connection setup overhead
Solution Approach 1:
The access network device pre-configures small data transmission parameters including data size thresholds and eDRX cycle parameters before actual data transmission occurs. This preliminary configuration allows the device to immediately transmit small data without going through full connection establishment procedures, significantly reducing setup time and improving transmission efficiency
Solution Approach 2:
The patent implements extended discontinuous reception (eDRX) cycles where the terminal device periodically wakes up to check for downlink data and transmit small uplink data. This periodic action pattern optimizes power consumption and network resource usage while maintaining efficient small data transmission capabilities without requiring continuous connection
3Speed
If small data transmission is enabled without configuration parameters, then transmission speed increases, but network resource management becomes difficult
Solution Approach 1:
The access network device monitors small data transmission performance and network resource usage, then dynamically adjusts configuration parameters including data size thresholds and eDRX cycle parameters. This feedback mechanism ensures optimal network resource management while maintaining high transmission speeds for small data, preventing resource exhaustion or inefficient usage patterns
Data Source
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Figure 2e~3d
Figure 3e~4b
AI summary
Disclosed are a method and apparatus for data transmission, a storage medium, a communication device, and a communication system. The method comprises: receiving first information sent by a network access device, wherein the first information is related to a configuration condition for small data transmission of a terminal device; or sending second information to the network access device, wherein the second information is related to incoming communication of a mobile station based on a core network. According to the present disclosure, when core network equipment processes downlink information of the terminal device, the configuration condition for small data transmission of the terminal device can be considered, and the network access device can acquire the condition related to the incoming communication of the mobile station based on the core network.