SIM Binding Mechanism for 5G IoT Network Resource Optimization
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Solution Overview
Problem
The existing 3GPP system lacks a mechanism to identify whether multiple subscriber identity modules (SIMs) belong to the same or different user equipment (UE) and network operators, leading to potential security vulnerabilities and incorrect optimizations that can result in service loss or denial-of-service attacks.
Innovation Solution
A method is introduced where a user equipment (UE) registers multiple SIMs with a network entity, receives non-access stratum (NAS) security contexts and temporary identifiers, and determines if the SIMs are registered on the same public land mobile network (PLMN). The UE then transmits a message indicating that the SIMs are associated with the same UE, and generates a message authentication code to verify this association.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple SIMs are registered with the network without binding mechanism, then network resource optimization is hindered, but implementing binding mechanism increases system complexity
Solution Approach 1:
The patent introduces a binding identifier as an intermediary element that links multiple SIMs to a single UE. This binding identifier acts as a mediator that enables the network to recognize and optimize resources for multiple SIMs belonging to the same device without requiring complex direct relationships between SIMs and UE, thus resolving the contradiction between network optimization and system complexity.
2Reliability
If no binding mechanism is implemented, then system complexity remains low, but security vulnerabilities and service loss occur
Solution Approach 1:
The patent implements preliminary binding between SIMs and UE by assigning binding identifiers during the registration process. This preliminary action ensures that the network has advance knowledge of the relationship between multiple SIMs and their parent UE, enabling security verification and preventing service loss before any potential security threats or optimization scenarios arise.
3Measurement precision
If binding mechanism is implemented, then correct SIM-UE association is achieved, but message transmission complexity increases
Solution Approach 1:
The patent uses binding identifiers as simplified copies or representations of the complex SIM-UE relationship. Instead of transmitting complex association data structures or performing complex verification protocols, the system uses concise binding identifier values that carry the essential association information, thereby maintaining measurement precision while reducing message transmission complexity.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Accordingly, the embodiments herein provide a method for binding a plurality of subscriber identity modules (SIMs) (150) associated with a user equipment (UE) (100) to optimize network resources in a wireless network.