Network Gateway Trigger Suppression for MTC Congestion
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Solution Overview
Problem
Current mobile communication networks lack an effective mechanism for managing back-off status during network congestion, leading to wasted resources and delayed trigger requests for machine-type communication (MTC) devices, as they cannot process trigger requests due to congestion and lack of congestion information.
Innovation Solution
Implementing a method where the network gateway node selectively performs trigger suppression operations based on congestion levels, receiving trigger suppression settings from the network control node to manage signaling and data transmission for MTC devices, thereby preventing resource wastage and ensuring timely delivery of trigger requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network gateway node processes all trigger requests during network congestion, then the service coverage is improved, but the network overload increases and resources are wasted
Solution Approach 1:
The network gateway node performs preliminary assessment of network congestion status before processing trigger requests. When congestion is detected, the node proactively suppresses or queues trigger requests before they can consume network resources, preventing resource wastage while maintaining service coverage during normal conditions
Solution Approach 2:
The trigger suppression mechanism dynamically adjusts its behavior based on real-time network congestion conditions. The network gateway node monitors congestion levels and adaptively enables or disables trigger suppression, transitioning between processing all requests and suppressing requests based on current network state
2Stress or pressure
If the network gateway node suppresses trigger requests during congestion, then the network overload is reduced, but the trigger request delivery time increases
Solution Approach 1:
The trigger suppression mechanism operates periodically based on congestion detection cycles. When congestion subsides, the node periodically checks and releases queued trigger requests, ensuring they are delivered once network conditions improve, thus balancing load reduction with eventual delivery
Solution Approach 2:
The network gateway node acts as an intermediary between the MTC server and the network, temporarily holding (queuing) trigger requests during congestion rather than immediately rejecting them. This intermediary buffering function preserves requests for later delivery when network conditions improve
3Loss of substance
If the network gateway node queues trigger requests during congestion, then the resource wastage is prevented, but the device complexity increases
Solution Approach 1:
The trigger suppression and queuing functionality is extracted as a distinct operational mechanism within the network gateway node. This separate functional module handles congestion management independently, managing complexity by isolating the congestion control logic from the core trigger processing path
Data Source
AI summary
A method of handling signaling and data transmission for machine-type communication (MTC) for a core network in a wireless communication system is disclosed. The core network includes at least one of a network control node, a data base and a network gateway node. The method includes the network gateway node selectively performing trigger suppression operation on at least a trigger request from a MTC server according to whether the core network is congested or overloaded, wherein each of the at least a trigger request is used to trigger at least an MTC application on a MTC device, wherein the trigger suppression operation is performed according to a trigger suppression setting received from the network control node.