US 11,601,797 B2 · Methods and systems of using remote subscriber identification modules at a device

Abstract

The present invention discloses methods and systems for communicating at a cellular router between a first wireless communication module and a first subscriber identity module (SIM). The cellular router receives a first request from a first wireless communication module and encapsulates the first request in a first modified request. The cellular router then sends the first modified request to a first SIM card in a first communication apparatus and waits for a first modified reply. While waiting for the first modified reply the cellular router sends at least one halt message to the first wireless communication module after a first time threshold. After receiving the first modified reply, the cellular router decapsulates the first modified reply to retrieve a first reply and sends the first reply to the first wireless communication module where the first modified reply is a reply to the first modified request.

Claims20

Dependent claims

A method of establishing a communication session between a subscriber identification module (SIM) card and a wireless communication module (WCM), wherein the SIM card is in a communication apparatus and the WCM is in a cellular router, the method comprising:

at the communication apparatus:
(a) sending an activation message to the SIM card;
(b) receiving an answer to reset (ATR) from the SIM card;
(c) storing the ATR in a non-transitory storage medium of the communication apparatus;
and
(d) when the activation message is received from the cellular router:
retrieving the ATR from the non-transitory storage medium of the communication apparatus, and sending the ATR to the cellular router;
at the cellular router:
(e) when the ATR is received from a SIM bank, storing the ATR in a non-transitory storage medium of the cellular router;
(f) receiving a reset signal from the WCM;
(g) retrieving the ATR from the non-transitory storage medium of the cellular router, and sending the ATR to the WCM;
and
(h) establishing the communication session between the SIM card and the WCM;
wherein the communication apparatus and the cellular router are connected through at least one connection.

11 more elements

A system of establishing a communication session between a subscriber identification module (SIM) card and a wireless communication module (WCM), the system comprising:

a communication apparatus;
and
a cellular router;
wherein the communication apparatus comprises:
at least one first processing unit;
at least one first non-transitory storage medium;
and
a plurality of SIM cards;
the SIM card is in the plurality of SIM cards;
wherein the cellular router comprises:
at least one second processing unit;
at least one second non-transitory storage medium;
and
a plurality of WCMs;
the WCM is in the plurality of WCMs;
wherein the at least one first non-transitory storage medium stores program instructions executable by the at least one first processing unit for:
(a) sending an activation message to the SIM card;
(b) receiving an answer to reset (ATR) from the SIM card;
(c) storing the ATR in the at least one first non-transitory storage medium;
and
(d) when the activation message is received from the cellular router:
retrieving the ATR from the at least one first non-transitory storage medium, and sending the ATR to the cellular router;
wherein the at least one second non-transitory storage medium stores program instructions executable by the at least one second processing unit for:
(e) when the ATR is received from a SIM bank, storing the ATR in the at least one second non-transitory storage medium;
(f) receiving a reset signal from the WCM;
(g) retrieving the ATR from the at least one second non-transitory storage medium, and sending the ATR to the WCM;
and
(h) establishing the communication session between the SIM card and the WCM;
wherein the communication apparatus and the cellular router are connected through at least one connection.

26 more elements

Dependencies are inferred from the claim text.

Methods and systems of using remote subscriber identification modules at a device

Life of this patent

Methods and systems of using remote subscriber identification modules at a device

Life of this patent

Abstract

Claims20