MSISDN Reassignment via Segmented Storage
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Solution Overview
Problem
Telecommunication service providers face challenges in managing Mobile Station International Subscriber Directory Numbers (MSISDNs) due to delayed Call Detail Records (CDRs), which can lead to MSISDNs being unavailable for reassignment after account cancellation, causing inefficiencies in resource management and billing processes.
Innovation Solution
A system comprising a Billing System node, a Charging System node, and a mediation node that shifts memory and processing requirements, allowing for immediate or timely reassignment of MSISDNs by replacing MSISDNs with line identifiers, enabling efficient reassignment and billing report generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the service provider node stores the MSISDN with association to the user account for an additional period after receiving cancellation request, then the billing accuracy is improved (to handle delayed CDRs), but the MSISDN reassignment speed deteriorates (unavailable for 60-90 days)
Solution Approach 1:
The system separates the MSISDN storage from the user account association by introducing a separate holding table that stores only the MSISDN without active account linkage. This segmentation allows the MSISDN to be preserved for billing purposes while being immediately available for reassignment to new accounts, resolving the contradiction between billing accuracy and reassignment speed.
Solution Approach 2:
The patent extracts the MSISDN from the user account association by storing it in a separate holding table after account cancellation. This extraction allows the MSISDN to be detached from the canceled account while remaining preserved for potential billing matches, enabling both billing accuracy maintenance and immediate reassignment capability.
2Reliability
If the service provider node stores charging information associated with the post-paid plan, then the billing completeness is improved, but the memory requirements deteriorate
Solution Approach 1:
The system extracts and preserves only the essential MSISDN identifier in a holding table rather than storing complete user account records and charging information. This selective extraction maintains billing completeness by preserving the key identifier needed for matching delayed CDRs while significantly reducing memory requirements by avoiding storage of redundant account data.
Solution Approach 2:
The patent applies local quality by storing different types of information in different locations: the MSISDN holding table stores only essential identifiers for billing matching, while detailed charging information remains associated with active user accounts. This localized storage strategy optimizes memory usage by storing data only where it is needed.
Data Source
AI summary
Systems, methods, and apparatuses may include a Billing System (BS) node, Charging System (CS) node, and a mediation node for managing Mobile Station International Subscriber Directory Numbers (MSISDN)s for a telecommunication network. The system may make an MSISDN available for reassignment immediately or shortly after (e.g., seconds, minutes, days, or weeks after) receiving a cancelation request associated with the MSISDN. For instance, upon receiving the cancelation request, the system may store a line identifier with an association to the MSISDN and/or an International Mobile Subscriber Identity (IMSI) in a line identifier database, and the system may delete the MSISDN/IMSI from a user account database. The system may receive a Telephone Account Procedure (TAP) Call Detail Record (CDR) associated with the MSISDN/IMSI after receiving the cancelation request. Accordingly, the system may use the line identifier stored in the line identifier database to generate a billing report corresponding to the TAP CDR.