MME Connection Control for M2M Network Overload
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Solution Overview
Problem
Current M2M communication systems lack the ability to selectively control network connections based on the emergency state of service data, leading to inefficient resource allocation and potential network overload.
Innovation Solution
A method and system where a Mobility Management Entity (MME) determines the priority of network connection requests and the network overload state to control connections between user equipment and the network, rejecting low-priority requests during overload and allowing non-low priority connections when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single network connection with low priority is established for M2M devices, then device complexity is reduced, but network resource allocation efficiency deteriorates during overload states
Solution Approach 1:
The patent implements dynamic connection priority adjustment by allowing M2M devices to switch between low priority and non-low priority states based on service data emergency levels. The MME dynamically adjusts connection handling policies according to real-time network overload states and device priority levels, transforming the static single-priority system into a flexible multi-priority framework that adapts to changing conditions.
2Reliability
If all network connection requests are accepted, then connection reliability is improved, but network overload worsens during high traffic states
Solution Approach 1:
The patent applies local quality differentiation by treating connection requests with different priorities differently. Low priority connections are rejected or delayed during network overload states, while non-low priority connections receive preferential treatment and are accepted even under overload conditions. This localized differential handling ensures critical services maintain reliability while non-critical services yield to prevent system-wide collapse.
3Productivity
If low priority connections are rejected during network overload, then network resource allocation efficiency is improved, but connection reliability for low priority devices deteriorates
Solution Approach 1:
The patent implements periodic retry mechanisms where devices whose connections are initially rejected due to low priority and network overload can attempt reconnection after back-off intervals. The network periodically checks for improved conditions, and devices can transition from low to non-low priority status based on changing service emergency levels, allowing them to retry connection establishment when network conditions improve.
Data Source
AI summary
A method for controlling a connection between a user equipment and a network includes receiving, by a MME, a network connection request sent by a user equipment. The method further includes determining a priority of the network connection request and a network overload state. The method further includes controlling a connection between the user equipment and a network according to the priority of the network connection request and the network overload state.