DATA TRANSMISSION METHOD, CHECK POINT DEVICE, USER EQUIPMENT AND SYSTEM Russian patent published in 2015 - IPC H04W36/14 

FIELD: radio engineering, communication.

SUBSTANCE: data transmission method includes the following stages: update, when the first radio interface is inaccessible, of the connection context information, conforming to the user equipment service on the first radio interface by means of which the user equipment is connected to the base network through the first access network; sending the first message with update information relating to the updated connection context information to the user equipment so the user equipment updates the connection context information, at the current moment conforming to the service on the first radio interface, according to the update information; and execution of the user equipment data transmission according to the updated connection context information.

EFFECT: prevention of interruption for all services conforming to the data transmission performed by means of the first radio interface when the first radio interface is inaccessible.

24 cl, 17 dwg