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Method to assign and use mobile virtual SIM

IP.com Disclosure Number: IPCOM000233901D
Publication Date: 2013-Dec-27
Document File: 2 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Abstract

The solution disclosed here provides a phone user with a virtual SIM card giving him a whatever type of supported credit (voice, SMS, network connection) so that he can solve temporary situation of credit unavailability. The solution is valid between different users but in general between different real SIM cards that therefore could also belong to the same user. So, theoretically with this solution, a single mobile phone account can be shared between different mobile phones and persons (for instance in a family).

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Method to assign and use mobile virtual SIM

The solution disclosed here provides a phone user with a virtual SIM card giving him a whatever type of supported credit (voice, SMS, network connection) so that he can solve temporary situation of credit unavailability. The solution is valid between different users but in general between different real SIM cards that therefore could also belong to the same user.

So, theoretically with this solution, a single mobile phone account can be shared between different mobile phones and persons (for instance in a family).

In the communication systems nodes it is possible today to provide the capability to a mobile number to operate under a second subscriber number. We here intend to have a same credit under the same operator (that can be different from the federated users one) let for use by multiple device/users.

A user uses his own SIM card to create other SIM cards that are virtual and disposable. The virtual SIM cards are created on the originator mobile device. These SIM cards have a portion of the originator capacity assigned to them (it can be money, minutes available for calling, number of SMSs, network connection data amount such as 1 GB) and they can be sent as an SMS or similarly to whoever. The mobile/user receiving the SIM card can decide to accept it or not. Accepting it, the user acquires the contained capacity and can start exploiting it authenticating and if needed roaming to the originator phone service provider. A SIM (Subscriber Identity Module) card contains encrypted IMSI, used to identify the account, and phone service authentication key. The IMEI is instead related to identify the device and together with the information above are used to authenticate to the phone service provider and have access to the available services.

When the originator generates a virtual SIM card, the allocated mobile capacity is locked on its account from the phone service mobile provider. A child IMSI is also created and related to the parent one. This IMSI has no need to be universally unique as general IMSI, but only under the parent IMSI, being meaningful only in the pair [parent IMSI, child IMSI]. So, it is this pair that needs to be universally unique.

A virtual S...