Small Data Transmission Mode Selection for Wireless Terminals
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Solution Overview
Problem
Current data transmission modes in wireless communications are inefficient for small data services, as they do not effectively select an appropriate mode for small data transmission, leading to increased signaling load and power consumption.
Innovation Solution
A method and apparatus for determining a small data transmission mode based on a preset policy, where small data refers to data amounts less than or equal to a preset value, allowing the terminal or base station to notify each other through uplink or downlink messages, thereby selecting an appropriate mode to reduce signaling load and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal migrates from inactive state to full connection state to transmit data, then the data transmission reliability is improved, but the signaling load and power consumption increase
Solution Approach 1:
The patent segments data transmission into two distinct modes: small data transmission (≤200 bytes) and large data transmission (>200 bytes). For small data, the terminal remains in inactive state using simplified signaling, while large data triggers full connection establishment. This segmentation allows optimized resource usage based on data size, reducing unnecessary power consumption for small transmissions while maintaining reliability for larger data.
Solution Approach 2:
The patent changes the parameter of data size threshold (200 bytes) to determine transmission mode. When data size is ≤200 bytes, the system uses inactive state transmission with reduced signaling; when >200 bytes, full connection state is established. This parameter-based decision mechanism dynamically adapts the transmission reliability and power consumption levels according to actual data requirements.
2Productivity
If the terminal uses full connection state for data transmission, then the data transmission capability is improved, but the signaling load increases
Solution Approach 1:
The patent divides data transmission into small data mode (≤200 bytes) and large data mode (>200 bytes). Small data transmissions use simplified inactive state procedures with minimal signaling, while large data transmissions use full connection state. This segmentation reduces overall signaling load by avoiding full connection establishment for small data packets, thereby improving system efficiency.
Solution Approach 2:
For small data transmissions, the patent applies partial action by using only the essential minimum signaling required for inactive state transmission, rather than performing the complete connection establishment procedure. This partial approach suffices for small data needs and significantly reduces signaling load compared to full connection procedures.
3Use of energy by moving object
If the terminal remains in inactive state for small data transmission, then the power consumption is reduced, but the transmission mode selection complexity increases
Solution Approach 1:
The patent uses a simple parameter threshold (200 bytes) to determine transmission mode. The terminal compares data size against this threshold: if ≤200 bytes, use inactive state; if >200 bytes, establish full connection. This single-parameter decision rule simplifies the mode selection process while enabling optimal power consumption based on actual data size requirements.
4Device complexity
If a unified transmission mode is used for all data sizes, then the system simplicity is maintained, but the transmission efficiency for small data decreases
Solution Approach 1:
The patent segments the transmission system into two pathways based on data size: small data (≤200 bytes) uses inactive state with simplified procedures, while large data (>200 bytes) uses full connection state. This segmentation improves transmission efficiency for small data by avoiding unnecessary connection establishment, while maintaining sufficient complexity only where needed for larger transmissions.
Data Source
AI summary
Disclosed are a method and an apparatus for determining a data transmission mode, and a computer storage medium. The method includes: determining, by a terminal, a small data transmission mode corresponding to service data based on a preset policy, where small data refer to data of which data amount is less than or equal to a preset value; acquiring, by the terminal, the small data transmission mode supported by the base station through a system message; and transmitting, by the terminal, the service data through the small data transmission mode; where the small data transmission mode comprises at least one of: the terminal migrates from an inactive state to a full connection state, and transmits the service data in the full connection state; or the terminal transmits the service data in the inactive state.