Secondary Endpoint IMSI Generation via Primary Device

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Solution Overview

Problem

Current mobile data and communications networks face challenges in authorizing and managing secondary endpoint devices without modifying existing network infrastructure, as they lack a standardized method to uniquely identify and authenticate these devices within the existing IMSI framework.

Innovation Solution

Generating a locally-assigned IMSI for secondary endpoint devices, which includes a reserved MCC, a telephone number, and a counter value, allowing these devices to access communications services without conflicting with existing IMSIs and requiring minimal reprogramming of network components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a standardized identification method is implemented for secondary endpoint devices, then device authentication and authorization are improved, but device complexity and implementation difficulty increase

Engineering Contradiction:
Improvedevice authenticationVSAvoidimplementation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by making the primary endpoint device perform multiple functions: it serves as both an endpoint that consumes services and as an authorization server that authenticates secondary endpoints. The primary endpoint uses its existing IMSI to generate authorized IMSIs for secondary endpoints, eliminating the need for separate authentication infrastructure. This multi-functionality resolves the contradiction by improving authentication reliability without adding external system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements self-service by enabling the primary endpoint device to autonomously generate and manage authorized IMSIs for its associated secondary endpoints without requiring network operator intervention or external authentication servers. The primary device stores the relationship between secondary endpoints and their authorized IMSIs locally, performing self-contained authentication operations that improve reliability while avoiding additional system complexity.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If existing IMSI framework is used without modification, then network infrastructure compatibility is maintained, but the ability to identify secondary endpoint devices is limited

Engineering Contradiction:
Improveidentifier flexibilityVSAvoidIMSI structure
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by making modifications only where needed - specifically in how IMSIs are generated and assigned for secondary endpoints, while leaving the core IMSI structure and existing network processing unchanged. The authorized IMSI format mirrors the standard IMSI structure, allowing local adaptation for secondary device identification without disrupting the overall stability of the IMSI framework.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses parameter changes by modifying the IMSI assignment process rather than the IMSI structure itself. The primary endpoint device generates authorized IMSIs using its own IMSI as input, transforming it into a new IMSI that follows the same format rules. This parameter transformation approach enables flexible identification of secondary endpoints while maintaining structural compatibility with the existing IMSI framework.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If network infrastructure is modified to support secondary endpoint authentication, then authentication capability is improved, but deployment cost and complexity increase

Engineering Contradiction:
Improveauthorization capabilityVSAvoiddeployment ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent eliminates the need for separate authentication infrastructure by making the primary endpoint device serve as its own authorization server. This multi-functionality approach improves authorization capability for secondary endpoints without requiring any modifications to network infrastructure, thereby maintaining ease of deployment and avoiding additional deployment costs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements self-service authentication where the primary endpoint device autonomously generates authorized IMSIs and manages secondary endpoint authentication locally. This eliminates the need for network operator deployment of additional authentication servers or infrastructure modifications, improving authorization capability while maintaining simple deployment procedures and avoiding additional costs.

Inventive Principle:
Principle #25Self-service

4Measurement precision

If unique identification for each secondary endpoint is implemented, then device differentiation is improved, but information management complexity increases

Engineering Contradiction:
Improvedevice identificationVSAvoidinformation management
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies universality by using the primary endpoint device's existing IMSI as the basis for generating all secondary endpoint identifiers. This single source IMSI serves multiple purposes: identifying the primary device itself and serving as the template for generating unique authorized IMSIs for each secondary endpoint. This approach improves device differentiation precision while avoiding the complexity of managing separate identification systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements local quality by storing and managing the relationships between secondary endpoints and their authorized IMSIs locally within the primary endpoint device's memory. This local management approach ensures precise unique identification for each secondary endpoint while avoiding the complexity of centralized information management systems, as each primary device independently manages its own secondary endpoints' identifiers.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9801050B2Formatting an endpoint as a private entity
Publication Date: 2017.10.24 VERIZON PATENT & LICENSING INC
  • US9801050B2 patent drawing
  • US9801050B2 patent drawing
  • US9801050B2 patent drawing

AI summary

An identifier may be generated for an endpoint device associated with a user device. The identifier may include first data indicating that the identifier is generated, second data identifying the user device, and third data identifying the endpoint device from a plurality of endpoint devices associated with the user device. The identifier may be formatted as an International Mobile Subscriber Identity (IMSI). The first data may include a three-digit mobile country code (MCC) not associated with a country. The second data may include a telephone number associated with the user device. The third data includes a counter value incremented for endpoint devices associated with the user device.