CPE Authentication via Local Infrastructure Trigger Signals

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Solution Overview

Problem

Existing systems face challenges in authenticating wireless customer premises equipment (CPE) to ensure that authorized devices are used at their designated location, particularly with the advancement of wireless network technologies that increase range, leading to potential unauthorized access and service theft.

Innovation Solution

Implementing a system that transmits an authentication trigger signal via a first communication mechanism associated with the service location and monitors a second communication mechanism to detect authentication trigger response signals, utilizing location-specific infrastructure such as powerline connections or wireless links to authenticate CPE, ensuring only authorized devices respond and are authenticated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If wireless network range is increased to provide broader service coverage, then service accessibility is improved, but vulnerability to unauthorized access and service theft increases

Engineering Contradiction:
Improveservice coverage areaVSAvoidunauthorized access risk
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces location-specific infrastructure (such as local wired networks, power line communication, or specific wireless access points) as an intermediary authentication channel. The system transmits authentication trigger signals through this local infrastructure and requires responses via the same channel, creating a mediator that verifies the CPE's physical location without limiting the wireless service coverage area.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If CPE authentication is simplified to ease deployment, then ease of operation is improved, but reliability of location verification deteriorates

Engineering Contradiction:
Improveauthentication deployment easeVSAvoidlocation verification accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent extracts the authentication verification function from the general wireless communication protocol and implements it as a separate, dedicated authentication mechanism using local infrastructure. This separation allows the main wireless service to operate with standard protocols while the extracted authentication subsystem provides reliable location verification through a specialized channel that is insensitive to wireless signal propagation variations.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If traditional wireless authentication methods are used, then device compatibility is improved, but security against service theft deteriorates

Engineering Contradiction:
Improvedevice compatibilityVSAvoidservice theft vulnerability
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the authentication process into two distinct phases: a compatibility phase that uses standard wireless protocols for initial device recognition and connection, and a verification phase that uses location-specific infrastructure for security confirmation. This segmentation allows the system to maintain broad device compatibility in the first phase while implementing enhanced security in the second phase, preventing service theft without sacrificing versatility.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10080137B2System and method for authenticating local CPE
Publication Date: 2018.09.18 CHARTER COMM OPERATING LLC
  • US10080137B2 patent drawing
  • US10080137B2 patent drawing
  • US10080137B2 patent drawing

AI summary

Systems, methods, apparatus and other mechanisms for authenticating wireless customer premises equipment (CPE) at a service location by transmitting an authentication trigger signal via a first communication mechanism associated with the service location toward CPE associated with the service location; monitoring a second communication mechanism associated with the service location to detect therefrom any received authentication trigger response signals; and authenticating only CPE associated with a received authentication trigger response signal, wherein at least one of the first and second communication mechanisms comprises a local infrastructure element.