Enriching Location Session Records with AMF Probe Data

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Solution Overview

Problem

Location session record datasets often lack essential data such as International Mobile Subscriber Identity (IMSI) or Mobile Station Integrated Services Digital Network (MSISDN), which hampers their reliability and utility for radio engineers and network performance analysis.

Innovation Solution

The proposed solution enriches location session record data by comparing it with access and mobility management function (AMF) probe data, specifically using Temporary Mobile Subscriber Identity (TMSI), cell name, and timestamp to identify matches and fill in missing IMSI or MSISDN values.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If location session record data is collected from LSR probes, then location information is obtained, but essential data such as IMSI or MSISDN is missing

Engineering Contradiction:

Improvemissing IMSI or MSISDN dataVSAvoidreliability of location session record data

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The patent merges location session record data from LSR probes with AMF probe data by comparing common fields (TMSI, cell name, timestamp) to enrich and complete the location records with missing IMSI or MSISDN information

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses AMF probe data as an intermediary source to fill in missing information from LSR probes, where the AMF data serves as a reference database to enrich location session records

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If location session record data is enriched with AMF probe data, then data completeness is improved, but data processing complexity increases

Engineering Contradiction:

Improvedata completenessVSAvoiddata processing complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The patent segments the data enrichment process into distinct steps: receiving LSR data, comparing with AMF data, identifying matches, and enriching records, which simplifies the overall processing complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs partial data enrichment by only adding missing fields (IMSI/MSISDN) rather than processing all possible data fields, reducing processing complexity while achieving the primary goal of data completeness

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250056209A1Location session record enrichment using access and mobility management function probes

Publication Date: 2025.02.13 T MOBILE INNOVATIONS LLC

AI summary

According to aspects herein, methods and systems for enriching location session record data are provided. More particularly, missing data of the location session record, such as an IMSI or MSISDN, is enriched with data from AMF probes. Initially, a location session record (LSR) dataset is received from an LSR probe. At least a portion of data from an access and mobility management function (AMF) dataset is compared to at least a portion of data from an LSR dataset to identify a match between a record in the AMF dataset and a corresponding record in the LSR dataset. Upon identifying the match, the corresponding record in the LSR dataset is enriched with IMSI or MSISDN from the record in the AMF dataset.