Implicit Registration Set for Multiple Calling Identities

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Solution Overview

Problem

Existing methods for implementing multiple calling identities in mobile telephony require mobile devices to be 'burned' with multiple Subscriber Identity Modules (SIMs) or have them switched out, which is inefficient and inconvenient.

Innovation Solution

The implementation of implicit registration in the Internet Protocol (IP) multimedia subsystem (IMS) network, where multiple Mobile Directory Numbers (MDNs) are linked in an Implicit Registration Set within a Home Subscriber Server, allowing a single SIM to manage multiple calling identities without the need for SIM switching or re-burning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple SIMs are burned with multiple MDNs or SIMs are switched out, then multiple calling identities can be implemented, but the process becomes inefficient and inconvenient

Engineering Contradiction:

Improvemultiple calling identitiesVSAvoidSIM switching or re-burning process

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements multi-functionality by enabling a single SIM to support multiple MDNs through implicit registration in the IMS network. The Implicit Registration Set allows one SIM to be associated with multiple MDNs, eliminating the need for multiple SIMs or physical SIM switching, thus making the SIM card universal for multiple calling identities

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent creates a virtual copy mechanism where the Implicit Registration Set stores multiple MDN associations in the HSS. Instead of physically copying or switching SIM cards, the system creates virtual representations of multiple identities linked to a single SIM through registration data, allowing seamless identity switching without physical intervention

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If multiple SIMs are used for multiple calling identities, then different MDNs can be supported, but device complexity increases

Engineering Contradiction:

Improvemultiple MDN supportVSAvoidmultiple SIM management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple MDN management functions into a single SIM through the Implicit Registration Set mechanism. Instead of managing multiple separate SIM cards, the system combines multiple identity associations into one SIM registration record stored in the HSS, reducing device complexity while maintaining multiple calling identity support

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces the Implicit Registration Set as an intermediary mechanism between the SIM and multiple MDNs. This intermediary structure in the HSS manages the associations between a single SIM and multiple MDNs, eliminating the need for complex multiple SIM management in the device while maintaining versatility

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9088885B2Implicit registration for multiple identities

Publication Date: 2015.07.21 VERIZON PATENT & LICENSING INC

AI summary

A device receives a personal Mobile Directory Number (MDN) associated with an individual subscriber, where the individual subscriber is further associated with one or more subscriber devices. The device receives a corporate MDN assigned to the individual subscriber. The device links the corporate MDN, the personal MDN, and the one or more subscriber devices within an Implicit Registration Set (IRS) at a Home Subscriber Server (HSS) in an Internet Protocol Multimedia Subsystem (IMS) for routing calls to the individual subscriber's corporate MDN or personal MDN at the one or more subscriber devices.