MTC Data Transmission via Control Plane Signaling
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Solution Overview
Problem
Current mobile communication systems, particularly those using 3GPP technologies, are inefficient in transmitting small-sized data between Machine-Type Communication (MTC) devices and servers, leading to high control signaling overhead and resource utilization inefficiencies due to the need for packet data bearer setup, even for small amounts of data.
Innovation Solution
A method is proposed to encapsulate MTC data within control signaling messages and transmit it before bearer setup, allowing for efficient online and offline transmission of small data, and broadcasting to single or grouped user equipment (UEs) without the need for conventional packet data bearer setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If packet data bearer setup is performed for MTC data transmission, then data transmission capability is improved, but control signaling overhead increases and resource utilization efficiency deteriorates
Solution Approach 1:
The patent combines MTC data transmission with existing control signaling procedures (attach procedure, tracking area update procedure, service request procedure). By merging data transmission functionality into these existing control plane procedures, the system eliminates the need for separate packet data bearer setup for small data transmissions, thereby reducing control signaling overhead while maintaining data transmission capability.
Solution Approach 2:
The control plane procedures are enhanced to serve multiple functions: they simultaneously perform mobility management tasks and transmit MTC data. This multi-functionality allows the same signaling messages to handle both control operations and data transmission, improving resource utilization efficiency and reducing the need for dedicated data transmission resources.
2Productivity
If packet data bearer setup is performed for MTC data transmission, then data transmission capability is improved, but system load increases
Solution Approach 1:
The patent merges MTC data transmission with existing control signaling procedures, eliminating the need for separate packet data bearer setup. This combination reduces the quantity of signaling messages and network resource allocations required, thereby decreasing system load while maintaining data transmission capability for MTC devices.
3Reliability
If conventional packet data bearer setup is used for small data transmission, then data transmission reliability is improved, but transmission delay increases
Solution Approach 1:
The patent establishes that MTC devices maintain control plane connectivity through periodic tracking area updates and attach procedures. By keeping the control plane connection alive and utilizing it for data transmission, the system eliminates the need for time-consuming packet data bearer setup before each small data transmission, thereby reducing transmission delay while maintaining reliability through the established control plane connection.
Data Source
AI summary
The present invention relates to a mobile communication system, and more particularly relates to a method for transmitting a small-sized control signal (also known as “small data”) using a control plane in a MTC (machine-type communication) service in a mobile communication system. In the present invention, MTC data is encapsulated in an existing control procedure or control message or the like, on a control signal, without performing packet data bearer setup, and the control signal having the encapsulated MTC data is sent between a network and a terminal, thereby optimizing network resource efficiency and reducing the wireless channel load.