MTC-IWF Entity Roaming Triggering Signaling Optimization
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Solution Overview
Problem
Current systems for triggering roaming Machine Type Communication (MTC) devices generate significant signaling traffic in home networks, affecting communication quality and resource utilization, especially when a large number of devices roam.
Innovation Solution
The system employs an MTC-IWF entity in the home network to receive registration information from roaming MTC devices, determine the corresponding visitor network, and send triggering requests directly to the MTC-IWF entity in the visitor network, thereby reducing signaling traffic in the home network and ensuring communication security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MTC server sends triggering requests through the MTC-IWF entity in the home network to trigger roaming MTC devices, then the MTC device can be successfully triggered, but a large amount of signaling traffic is generated in the home network, occupying network resources and affecting communication quality
Solution Approach 1:
The patent extracts the triggering function from the home network's MTC-IWF entity and relocates it to the visitor network's MTC-IWF entity. When an MTC device roams to a visitor network, the MTC server sends triggering requests directly to the MTC-IWF entity in the visitor network, which then triggers the device. This extraction removes the burden of processing triggering requests from the home network, significantly reducing signaling traffic volume while maintaining triggering reliability through direct connection to the device's current location.
Solution Approach 2:
The patent introduces a roaming indication parameter as an intermediary mechanism. The MTC server obtains roaming indication information about the MTC device and uses this intermediary data to determine whether to send triggering requests through the home network or directly through the visitor network. This intermediary information enables intelligent routing of triggering requests, optimizing network resource usage while ensuring reliable device triggering.
2Reliability
If the MTC server sends triggering requests through the home network nodes to the visitor network, then the roaming MTC device can be triggered, but the communication quality of normal non-roaming MTC devices in the home network is degraded
Solution Approach 1:
The patent extracts the triggering request processing function from the home network and relocates it to the visitor network. By sending triggering requests directly to the MTC-IWF entity in the visitor network instead of routing them through home network nodes, the home network is relieved of the harmful burden of processing roaming device triggering. This extraction eliminates the interference with normal non-roaming MTC device communication while maintaining reliable triggering of roaming devices through the visitor network's local MTC-IWF entity.
3Reliability
If security authentication is performed through the MTC security gateway in the home network for roaming MTC devices, then communication security is ensured, but signaling traffic and resource occupation in the home network increase
Solution Approach 1:
The patent extracts the security authentication function from the home network's MTC security gateway and relocates it to the visitor network's MTC-IWF entity. The MTC server performs security authentication directly with the MTC-IWF entity in the visitor network, ensuring communication security without requiring signaling traffic to traverse the home network. This extraction maintains security requirements while eliminating the resource occupation and signaling traffic burden in the home network.
Data Source
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AI summary
The present invention provides a system, an apparatus and a method for triggering a roaming Machine Type Communication (MTC) device. The system comprises an MTC InterWorking Function (MTC-IWF) entity of a home network and an MTC-IWF entity of a visitor network, wherein the MTC-IWF entity of the home network is configured to receive the registration information reported by the roaming MTC device, and send the triggering request message to the MTC-IWF entity of the visitor network according to the registration information when receiving the triggering request message for triggering the roaming MTC device; and the MTC-IWF entity of the visitor network is configured to receive the triggering request message and trigger the roaming MTC device. The present invention solves the problem that a lot of signalling traffic may be generated in the home network when security is ensured in the process of triggering the roaming MTC device in the conventional art, so as to improve the performance of the home network and be favourable for improving the communication quality of the home network and the user experience.