CPE Bandwidth Allocation for Multi-Network Security

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Solution Overview

Problem

Current bandwidth management systems in fixed-mobile convergence struggle to efficiently allocate and secure bandwidth across multiple networks, particularly in scenarios where secondary subscriber identities need to connect to a secondary wireless local area network associated with a primary subscriber's customer premises equipment, while ensuring network security and maintaining the targeted bandwidth levels for primary subscribers.

Innovation Solution

Implementing a bandwidth management method that allows secondary subscriber UEs to connect to a WLAN associated with a CPE of a primary subscriber, while ensuring network security and allocating bandwidth based on the primary subscriber's purchased level, and excluding non-subscribers from accessing the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If secondary subscriber UEs are allowed to connect to the primary subscriber's WLAN, then network resource utilization and bandwidth efficiency are improved, but network security and bandwidth control for primary subscribers deteriorate

Engineering Contradiction:
Improvebandwidth utilization efficiencyVSAvoidnetwork security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent divides the WLAN network into multiple virtual networks (VLANs) with different access levels. Primary subscribers and secondary subscribers are assigned to different virtual network segments, allowing controlled access to network resources while maintaining security boundaries. This segmentation enables bandwidth sharing without compromising the security of the primary network.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a network gateway or access controller as an intermediary between secondary subscribers and the primary subscriber's network resources. This intermediary enforces authentication, authorization, and bandwidth policy rules, allowing secondary devices to access the network while preventing unauthorized access and ensuring bandwidth constraints are maintained.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple networks are integrated in CPE, then network functionality and service coverage are improved, but device complexity and bandwidth management difficulty increase

Engineering Contradiction:
Improvenetwork functionalityVSAvoidbandwidth management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal bandwidth management framework in the CPE that handles multiple network types (wired, wireless, cellular, Wi-Fi) through a single centralized controller. This multi-functional approach allows the CPE to manage diverse network connections and subscriber types using unified policies, reducing operational complexity despite increased functionality.

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

Solution Approach 2:

The patent employs real-time feedback mechanisms where the bandwidth management system continuously monitors network usage, device connections, and bandwidth consumption across all integrated networks. Based on this feedback, the system dynamically adjusts bandwidth allocation and enforces policies, simplifying management of complex multi-network environments through automated closed-loop control.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10158532B1Bandwidth management in a customer premises equipment comprising multiple networks
Publication Date: 2018.12.18 AT&T INTELLECTUAL PROPERTY I L P
  • US10158532B1 patent drawing
  • US10158532B1 patent drawing
  • US10158532B1 patent drawing

AI summary

A customer premises equipment (CPE) can allocate bandwidth to a primary user equipment (UE) connected to the CPE via a first network connection of first network (e.g., primary network) associated with the CPE. The allocation can be based upon a usage of bandwidth through the first network over a sample period. In response to a request from a secondary UE to connect to a wireless second network associated with CPE. In response to a determination that the secondary UE is authorized to access the second network, the CPE can facilitate the connection of the secondary UE to the CPE via the second network. The CPE can allocate bandwidth to the secondary user equipment based upon the first amount of bandwidth allocated to the primary user equipment, and based upon the bandwidth capacity of the link between the CPE and the fixed packet network.