Dynamic Security Gateway Selection for Backhaul Traffic Offloading

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Solution Overview

Problem

Current telecommunication systems face challenges in efficiently managing backhaul traffic congestion and selecting the optimal security gateway for picocells to offload data to macrocells, leading to potential latency and network congestion issues.

Innovation Solution

A system and method that utilize a default security gateway to execute discovery functions to identify the best security gateway based on distance and available capacity, allowing picocells to disconnect from the default gateway and connect to the optimal macrocell for efficient traffic offloading, which includes periodic updates to reflect changing network conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If picocells connect to default security gateway, then security management is simplified, but network congestion increases and latency increases

Engineering Contradiction:
Improvesecurity management complexityVSAvoidnetwork efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system segments the security gateway function into default security gateways (handling authentication and discovery) and optimal security gateways (handling actual traffic forwarding). This segmentation allows picocells to connect to default gateways for simplified security management while dynamically selecting optimal gateways for traffic offloading, thereby reducing network congestion and latency without compromising security management simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The default security gateway acts as an intermediary that facilitates the connection between picocells and optimal security gateways. It executes discovery functions to identify optimal gateways and provides the necessary routing information, enabling picocells to bypass congested paths while maintaining simplified security management through the intermediary's coordination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If picocells use default security gateway, then connection setup is simplified, but backhaul traffic congestion occurs

Engineering Contradiction:
Improveconnection setup simplicityVSAvoidbackhaul traffic congestion
Core Design Contradiction:
Ease of operationVSStress or pressure

Solution Approach 1:

The system performs preliminary actions by having the default security gateway execute discovery functions to identify optimal security gateways and macrocells before actual traffic offloading occurs. This preliminary identification of the best path allows picocells to maintain simplified connection setup procedures while avoiding backhaul traffic congestion by pre-determining the optimal routing path.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces dynamics by enabling picocells to dynamically switch from default security gateways to optimal security gateways based on real-time network conditions. The discovery function continuously identifies the best available path, allowing the system to adapt to changing traffic patterns and reduce congestion while maintaining operational simplicity through automated dynamic routing.

Inventive Principle:
Principle #15Dynamics

3Productivity

If picocells dynamically select best security gateway, then network efficiency improves, but system complexity increases

Engineering Contradiction:
Improvenetwork efficiencyVSAvoidgateway selection system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system implements self-service by enabling picocells to autonomously perform discovery functions and automatically select optimal security gateways based on their own network conditions and requirements. This self-service capability improves network efficiency through dynamic gateway selection while minimizing system complexity by eliminating the need for centralized control mechanisms, as each picocell independently makes routing decisions.

Inventive Principle:
Principle #25Self-service

4Quantity of substance

If macrocells have limited capacity, then network resources are conserved, but traffic offloading capability is reduced

Engineering Contradiction:
Improveavailable network capacityVSAvoidtraffic offloading capability
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The system applies parameter changes by dynamically adjusting the selection criteria for optimal security gateways based on real-time macrocell capacity parameters. The discovery function monitors available capacity parameters and adapts gateway selections to utilize underutilized macrocells, thereby improving traffic offloading capability without requiring additional network resources. This allows the system to conserve existing network resources while maximizing their utilization efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9338133B1Locating optimum security gateway
Publication Date: 2016.05.10 T MOBILE INNOVATIONS LLC
  • US9338133B1 patent drawing
  • US9338133B1 patent drawing
  • US9338133B1 patent drawing

AI summary

A method, system, and medium are provided for locating an optimal security gateway. A default gateway receives a request to access a macrocell. The default security gateway obtains a current location for each macrocell in response to a security gateway discovery function. Based on the response, routes to a best security gateway for each macrocell are determined. A best security gateway is identified based on factors that include the distance from a picocell connected to the default security gateway having backhaul traffic to offload to the appropriate macrocells connected to the best security gateway.