Connectionless Data Transmission Mode for Packet Mobile Networks
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Solution Overview
Problem
Current mobile communication networks face inefficiencies in signaling and resource management, particularly for Machine Type Communication (MTC) devices that experience frequent idle-to-active transitions, leading to excessive control plane transactions and network resource waste.
Innovation Solution
Implementing a connectionless data transmission mode that uses predefined tunnels shared by multiple devices, eliminating the need for dedicated tunnels per device and reducing state in network nodes, by utilizing Connection ID information for packet forwarding and security state management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated tunnels and bearers are established per device for data transmission, then connection reliability is improved, but signaling overhead and network resource consumption increase significantly during idle-to-active transitions
Solution Approach 1:
The patent merges multiple device-specific tunnels into a single shared tunnel that serves multiple devices. Instead of establishing separate dedicated bearers for each MTC device, the network creates one common bearer that multiple devices can share during idle-to-active transitions, thereby reducing signaling overhead while maintaining reliable data transmission.
Solution Approach 2:
The patent implements a universal tunnel structure that serves multiple functions: it acts as a shared data transmission path for multiple devices simultaneously, eliminates the need for device-specific tunnel establishment during idle-to-active transitions, and provides a common security context that benefits all connected devices, thereby improving network efficiency.
2Reliability
If dedicated bearers are established for each device during idle-to-active transitions, then data transmission security is improved, but the number of control plane transactions increases
Solution Approach 1:
The patent combines multiple device-specific security contexts into a single shared security context that protects data transmission for multiple devices. This shared security context is established once at the tunnel level rather than requiring separate security setup for each device during idle-to-active transitions, reducing control plane transactions while maintaining security.
3Adaptability or versatility
If connection-oriented mode is used with dedicated tunnels per device, then QoS management is improved, but device complexity and state management in network nodes increase
Solution Approach 1:
The patent extracts the complex device-specific state management from individual device bearers and consolidates it into the shared tunnel context. By taking out the per-device tunnel establishment and state tracking, the system reduces complexity in network nodes while maintaining the ability to manage QoS through the shared tunnel's parameters.
Data Source
AI summary
In an embodiment, there is provided a method for the support of data transmission in a packet mobile network, for PDN connectivity over the packet mobile network between an User Equipment UE and an external Packet Data Network PDN, the packet mobile network comprising a Core Network CN accessed by a Radio Access Network RAN, the data transmission using a tunnel over an interface between a serving RAN node and a serving user plane CN node, the method including support of the data transmission in a mode referred to as connectionless transmission mode, wherein the tunnel over the interface is predefined and identified using information referred to as Connection ID information, providing a reference to the PDN and to the serving user plane CN node.