Targeted Overload Management in Mobile Networks
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Solution Overview
Problem
Conventional mobile communication networks face challenges in managing overload, particularly in the control plane, where all machine type communication (MTC) user devices are affected even if the overload is specific to one or a limited number of nodes, leading to inefficient congestion handling and resource management.
Innovation Solution
A method that detects network overload, generates an overload report with resource identifiers, identifies affected user devices and applications, and informs serving entities to temporarily suppress communication requests, allowing for targeted congestion management and resource optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional congestion handling is applied to all MTC user devices during network overload, then network overload is managed, but unnecessary data traffic is generated and network resources are wasted
Solution Approach 1:
The patent applies local quality by differentiating between MTC user devices based on their service profiles and the specific overload conditions. Instead of uniformly applying congestion handling to all MTC devices, the system identifies and targets only those devices whose data transmissions would actually contribute to the overload, allowing other devices to continue normal operation without unnecessary traffic suppression or generation.
2Reliability
If conventional congestion handling is applied to all MTC user devices during network overload, then network overload is managed, but network congestion is increased
Solution Approach 1:
The system implements local quality by applying congestion handling selectively to specific MTC user devices based on their service profiles and the identified overload sources. This targeted approach prevents the blanket suppression that would increase overall network congestion, while still effectively managing the specific overload conditions by blocking only the necessary device data transmissions.
3Reliability
If device trigger requests are suppressed during overload, then network overload is reduced, but affected user devices cannot communicate
Solution Approach 1:
The patent applies local quality by differentiating between affected and non-affected MTC user devices during overload conditions. The system identifies specific devices whose transmissions contribute to the overload and blocks only those devices' data transmissions, while allowing other MTC devices to continue communicating normally. This selective approach reduces network overload without unnecessarily disrupting communication for unaffected devices.
4Reliability
If all MTC user devices are affected by overload even when specific to limited nodes, then network overload is managed, but resource utilization is inefficient
Solution Approach 1:
The system implements local quality by identifying and targeting only the specific MTC user devices and network nodes involved in the overload condition. Instead of affecting all MTC devices across the network, the system applies congestion handling locally to the affected nodes and devices, thereby maintaining efficient resource utilization in unaffected parts of the network while still effectively managing the overload.
Solution Approach 2:
The patent applies segmentation by dividing the network into affected and non-affected segments based on the overload conditions. The congestion handling is applied only to the affected segments (specific nodes and devices), while the rest of the network continues normal operation. This segmentation allows for efficient resource utilization overall while still managing the local overload conditions effectively.
Data Source
AI summary
A mobile communication network (MCN) and method for managing (overload in) an MCN having a radio access network and core network connected to the radio access network, wherein a plurality of user devices in form of non-MTC user devices like mobile phones and MTC user devices is connected to base station(s) of the radio access network, includes: a) detecting a presence of a network overload in the MCN, b) generating an overload report according to the detected network overload comprising one or more resource identifiers of the resources of the MCN on which the overload was detected, c) identifying (W1) user device(s) (UD) and/or application(s) affected by the network overload (OL) based on the overload report, and d) informing one or more serving entities serving the resolved UD for temporarily suppressing communication requests, preferably in form of devices triggers (DT), for the resolved UD, preferably MTC UD.