Dynamic Region-Based Allowed List for MTC Network Access
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Solution Overview
Problem
It is challenging to determine the actual deployment location of a Machine-Type Communication (MTC) device and which base station it receives service from, making it difficult to set up an allowed list for network access control.
Innovation Solution
A method and system that dynamically generate and update an allowed list based on regions for a stationary wireless terminal, allowing network access control without pre-defined lists, by having the MTC terminal or Mobility Management Entity (MME) create and manage the list based on available cell information and signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an allowed list is pre-configured for MTC devices, then network access control can be established, but it becomes impossible to accommodate devices deployed at unknown locations
Solution Approach 1:
The allowed list is transformed from a static pre-configured structure to a dynamic structure that is automatically generated and updated based on the MTC device's actual deployment location. The network creates the allowed list after the device is deployed, using location information from attach requests or tracking area updates, thereby resolving the contradiction between having control mechanisms in place and adapting to unknown deployment locations.
Solution Approach 2:
Instead of performing the allowed list configuration action before deployment (which fails for unknown locations), the system performs the configuration action after deployment. The network generates the allowed list based on actual deployment information received from the device, effectively reversing the timing of the configuration action to resolve the contradiction.
2Adaptability or versatility
If the allowed list is generated dynamically after deployment, then deployment location flexibility is achieved, but the complexity of network procedures increases
Solution Approach 1:
The MTC device itself provides the location information needed for allowed list generation by including it in attach requests or tracking area update messages. The network simply processes this self-provided information to generate the allowed list, rather than requiring complex external location determination procedures, thus reducing overall system complexity while maintaining dynamic adaptability.
3Measurement precision
If the allowed list is updated frequently to track device movement, then access control accuracy is maintained, but signaling overhead increases
Solution Approach 1:
The allowed list is updated periodically based on scheduled tracking area update timings rather than continuously tracking every device movement. This periodic update approach maintains sufficient access control accuracy for stationary and low-mobility MTC devices while significantly reducing the signaling overhead compared to continuous tracking, resolving the contradiction between precision and information loss.
Data Source
AI summary
A method and system for generating an allowed list based on regions for a wireless terminal are disclosed. The method generates an allowed list based on regions to control network access of a stationary wireless terminal, and includes: sending, by the wireless terminal, an attach request to a network; creating, by the network, an allowed list that contains information on regions in which the wireless terminal is permitted to access the network; and controlling, by the network, network access of the wireless terminal on the basis of the allowed list. Hence, the allowed list, which stores information regarding regions in which the MTC terminal 110 is permitted to access the network, may be dynamically created by the terminal or the MME.