Mobile Flow Record Generation via Signaling-Bearer Correlation

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Solution Overview

Problem

IP flow records are inadequate for tracking flows in wireless networks as they fail to associate IP layer activity with the impacts on the underlying wireless network and cannot use IP addresses to track wireless subscribers due to dynamic address assignment.

Innovation Solution

Generating a mobile flow record that includes both IP layer information and wireless layer information by correlating signaling traffic and bearer traffic information, enabling better visibility and management of wireless networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If IP flow records are used for tracking flows in wireless networks, then network monitoring and management functions can be performed, but IP addresses cannot be used to track wireless subscribers due to dynamic address assignment

Engineering Contradiction:
Improvesubscriber tracking capabilityVSAvoidtracking accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces an intermediary mapping mechanism that associates dynamic IP addresses with permanent subscriber identifiers (such as IMSI or MSISDN). This mapping table acts as a mediator between the transient IP layer and the persistent subscriber identity, enabling reliable subscriber tracking despite dynamic IP assignment. The system maintains correspondence relationships between IP addresses and subscriber identities to enable accurate flow tracking.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If IP flow records are used in wireless networks, then some network monitoring functions are available, but there is no way to associate IP layer activity with impacts on the underlying wireless network

Engineering Contradiction:
Improveinformation completenessVSAvoidrecord structure complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent merges IP layer flow information with wireless layer resource information into a unified mobile flow record structure. This combination integrates data from multiple layers (IP addresses, ports, protocol, QoS parameters, radio resource identifiers, cell information) into a single comprehensive record, eliminating information loss while managing complexity through structured organization of the combined data elements.

Inventive Principle:
Principle #5Merging (Combining)

3Loss of information

If comprehensive mobile flow records are generated including both IP layer and wireless layer information, then enhanced visibility and management capabilities are achieved, but the complexity of generating and processing these records increases

Engineering Contradiction:
Improvenetwork visibilityVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent segments the mobile flow record generation process into distinct functional modules: IP layer information extraction, wireless layer information extraction, correlation/mapping operations, and record assembly. This segmentation allows each module to handle specific tasks independently, reducing overall system complexity while achieving comprehensive network visibility through the integration of segmented information streams.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8681770B2Method and apparatus for mobile flow record generation and analysis
Publication Date: 2014.03.25 ALCATEL LUCENT SA
  • US8681770B2 patent drawing
  • US8681770B2 patent drawing
  • US8681770B2 patent drawing

AI summary

A method, apparatus, and computer-readable storage medium for generating a mobile flow record for a mobile flow of a mobile node are provided. A method includes receiving information associated with signaling traffic of the mobile node, receiving information associated with bearer traffic of the mobile node, and generating the mobile flow record by correlating the information associated with signaling traffic of the mobile node and the information associated with bearer traffic of the mobile node. The mobile flow record includes IP layer information associated with the mobile flow and wireless layer information associated with the mobile flow.