Modem Chipset Identifier Binding for Fraudulent Network Access
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Solution Overview
Problem
Telecommunications networks face significant fraudulent activities due to unauthorized access by legitimate subscribers who illegitimately use network services, often by changing the International Mobile Equipment Identity (IMEI) of their devices to exploit different rate plans, leading to financial and resource burdens.
Innovation Solution
An enhanced method involving the 'burning in' of a device/hardware identifier, such as a portion of the IMEI, into UE capability information within the modem chipset, allowing for automated detection and suspension of fraudulent network access by comparing IMEI values across RRC messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual fraud detection methods are used, then detection accuracy can be maintained, but the resource burden and time consumption increase significantly
Solution Approach 1:
The patent applies preliminary action by 'burning in' the device identifier into the modem chipset before the device connects to the network. This pre-provisioning of the identifier allows the network to automatically recognize and detect fraudulent devices without requiring manual analysis after the fact, thus maintaining detection accuracy while reducing the time burden on service providers
Solution Approach 2:
The system enables self-service by having the modem automatically report its burned-in device identifier during network attachment procedures. The network can then autonomously compare this identifier against authorized lists and detect fraud without human intervention, reducing both time loss and resource burden while maintaining detection capabilities
2Measurement precision
If comprehensive fraud detection analysis is performed, then fraud identification accuracy improves, but system complexity and resource consumption increase
Solution Approach 1:
The patent extracts the device identifier directly from the modem chipset through the 'burning in' process, separating this critical identification function from the complex fraud analysis system. By obtaining the identifier directly from the hardware at the modem level, the system achieves accurate fraud identification without requiring complex analysis of multiple device parameters, thus reducing system complexity while maintaining detection accuracy
3Adaptability or versatility
If device identifiers are changed by users, then adaptability to different rate plans increases, but fraudulent access becomes possible
Solution Approach 1:
The patent applies preliminary anti-action by pre-provisioning the device identifier in the modem chipset before the device can access the network. This burned-in identifier serves as a permanent hardware anchor that prevents users from changing identifiers to exploit different rate plans. The network can verify this pre-established identifier during attachment, maintaining security reliability while still allowing legitimate rate plan changes through authorized procedures
Data Source
AI summary
Aspects of the subject disclosure may include, for example, including, in user equipment (UE) capability information, at least a portion of a device identifier of a UE, and causing the UE capability information to be transmitted in resource control messaging. Other embodiments are disclosed.