US 2026/0313722 A1Published application

Methods and systems of sending and receiving messages between a cellular router and a server

AssigneePismo Labs Technology Limited

InventorsUzair Ahmed CHUGHTAI, Fawad AHMED, Tomas ŠEIRYS, Man Kit KWAN, Al-Amin QUYYUM, Yu YEUNG, Ka Ho HO

Life of this patent

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Abstract

The present invention discloses methods and systems for using one or more substitute connections between a cellular router and a server. When the server detects that one or more connections fail, the server starts using one or more substitute connections to the one or more failed connections. The connections are used to transmit requests and responses between the cellular router and the server. The requests comprise authentication requests that are transmitted to the server from the cellular router. The responses comprise authentication responses that are transmitted to the cellular router from the server. The authentication requests and the authentication responses are to authenticate one or more SIM cards housed in the server. The cellular router authenticates the one or more SIM cards by utilizing the authentication responses to keep maintaining respective cellular connections established using the one or more SIM cards from the server.

Claims20

Dependent claims

A method for sending requests and receiving responses between a cellular router and a subscriber identification module (SIM) station, comprising:

(a) at the cellular router, establishing a plurality of connections with a plurality of SIM cards of the SIM station by using a plurality of wireless communication modules (WCMs) of the cellular router;
(b) at the cellular router, sending at least one first request to the SIM station through a first connection;
(c) at the SIM station, sending at least one first response to the cellular router through the first connection in responding to the at least one first request;
(d) at the SIM station, detecting whether the at least one first response is failed to be sent through the first connection;
(e) when the at least one first response is failed to be sent through the first connection:
(i) at the SIM station, determining a number of available connections established through the plurality of WCMs of the cellular router;
(ii) at the SIM station, based on the number of the available connections, creating a plurality of second responses at least comprising the at least one first response;
(iii) at the SIM station, sending the plurality of second responses through the available connections;
and
(iv) at the cellular router, receiving the plurality of second responses through the available connections;
and
(f) when the at least one first response is sent through the first connection, at the cellular router, receiving the at least one first response through the first connection;
wherein the first connection is one of the plurality of connections established through a first WCM of the plurality of WCMs;
and
wherein the available connections are at least one connection of the plurality of connections other than the first connection.

12 more elements

A system for sending requests and receiving responses between a cellular router and a subscriber identification module (SIM) station, comprising:

the cellular router;
and
the SIM station;
wherein the cellular router comprises:
at least one first processing unit;
at least one first non-transitory computer readable storage medium;
and
a plurality of wireless communication modules (WCMs);
wherein the SIM station comprises:
at least one second processing unit;
at least one second non-transitory computer readable storage medium;
and
at least one wide area network (WAN) interface;
wherein the at least one first non-transitory computer readable storage medium stores program instructions executable by the at least one first processing unit for:
(a) establishing a plurality of connections with a plurality of SIM cards of the SIM station by using the plurality of WCMs;
(b) sending at least one first request to the SIM station through a first connection;
(c) when at least one first response is failed to be sent through the first connection:
(i) receiving a plurality of second responses through available connections;
and
(d) when the at least one first response is sent through the first connection, receiving the at least one first response through the first connection;
wherein the at least one second non-transitory computer readable storage medium stores program instructions executable by the at least one second processing unit for:
(e) sending the at least one first response to the cellular router through the first connection in responding to the at least one first request;
(f) detecting whether the at least one first response is failed to be sent through the first connection;
and
(g) when the at least one first response is failed to be sent through the first connection:
(i) determining a number of the available connections established through the plurality of WCMs;
(ii) based on the number of the available connections, creating the plurality of second responses at least comprising the at least one first response;
and
(iii) sending the plurality of second responses through the available connections;
wherein the first connection is one of the plurality of connections established through a first WCM of the plurality of WCMs;
and
wherein the available connections are at least one connection of the plurality of connections other than the first connection.

29 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/711,960Filed 18 Jun 2026
Priority: 28 May 2021
Published: 8 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 76/10
Connection management: connection setup
H04W 48/18
Access restriction ; Network selection; Access point selection: selecting a network or a communication service
H04W 84/042
Large scale networks; Deep hierarchical networks: public Land Mobile systems, e.g. cellular systems
H04W 88/06
Terminal devices: adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Family

Application17/762,381Continuation · filed 28 May 2021
Application19/711,960Continuation
US 12,690,073 B2Related patent
US 2024/0057176 A1Published application
US 2026/0313722 A1This patent

From the US filing history. Foreign family members aren’t listed.