Session Continuity Controller for Lawful Interception Transmission

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Solution Overview

Problem

Lawful interception content transmission across networks often fails due to buffer-overflow and insufficient network resources, leading to defective or failed content packet delivery to Law Enforcement Agencies, causing delays and quality issues.

Innovation Solution

A session continuity server controller determines defects in lawful interception content transmission, executes corrective measures such as selecting new content duplication elements and session continuity servers based on network conditions, and ensures stability to maintain effective and reliable content transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If content duplication and aggregation are performed during lawful interception, then content transmission capability is improved, but buffer-overflow and insufficient network resources cause transmission failures

Engineering Contradiction:
Improvecontent transmission capabilityVSAvoidcontent packet delivery reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary defect detection and network condition assessment before content transmission. The session continuity server controller proactively identifies potential transmission issues and executes corrective measures in advance, preventing buffer-overflow and resource exhaustion before they cause transmission failures.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous monitoring of network conditions and transmission quality, using this feedback to dynamically adjust transmission parameters. The controller detects defects in real-time and executes corrective measures based on current network state, ensuring reliable transmission under varying conditions.

Inventive Principle:
Principle #23Feedback

2Reliability

If network resources are increased to prevent buffer-overflow, then transmission reliability is improved, but network cost and complexity increase

Engineering Contradiction:
Improvelawful interception content transmission reliabilityVSAvoidnetwork resource requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system dynamically adjusts transmission parameters and resource allocation based on current network conditions. Rather than provisioning for maximum capacity statically, the controller adapts buffer sizes, transmission rates, and aggregation levels to match actual network state, reducing overall resource requirements while maintaining reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as buffer thresholds, aggregation window sizes, and transmission priorities based on detected network conditions. This allows the same network infrastructure to support reliable transmission under varying loads without requiring additional resources.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If content aggregation is performed to improve transmission efficiency, then productivity is improved, but buffer-overflow causes aggregation failure

Engineering Contradiction:
Improvecontent transmission efficiencyVSAvoidaggregation success rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system determines network conditions and defect states before performing content aggregation. By assessing buffer availability and network capacity in advance, the controller can safely aggregate content without risking buffer-overflow, maintaining both efficiency and reliability.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If transmission speed is increased to reduce delays, then productivity is improved, but insufficient network resources cause transmission failures

Engineering Contradiction:
Improvecontent delivery speedVSAvoidcontent delivery success rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts transmission speed based on real-time network conditions. When resources are available, transmission proceeds at high speed; when resources are constrained, the controller reduces speed to prevent failures. This maintains high productivity while ensuring reliable delivery.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3151596B1System and method for effective and reliable lawful interception content transmission across networks
Publication Date: 2019.09.25 WIPRO LTD
  • EP3151596B1 patent drawingFigure 1
  • EP3151596B1 patent drawingFigure 2
  • EP3151596B1 patent drawingFigure 3

AI summary

A session continuity server controller, the controller comprising: a memory; and a processor coupled to the memory storing processor executable instructions which when executed by the processor causes the processor to perform operations comprising: determining one or more defects in lawful interception content transmission associated with a user session, wherein the one or more defects comprise one or more degraded network conditions and degraded LI content; executing one or more corrective measures based on the one or more defects in lawful interception content transmission; and determining stability of the lawful interception content transmission post one or more corrective measures for effective and reliable lawful interception content transmission.