METHOD OF MOBILE COMMUNICATION AND MOBILE STATION Russian patent published in 2013 - IPC H04W12/04 

FIELD: radio engineering, communication.

SUBSTANCE: in a mobile station the first key is saved (K_eMB[n]), which is intended for generation of the second key designed for generation of a certain key used when communicating between the initial base station and the mobile station, besides, the first key (K_eMB[n]) is determined with a parameter (KI), contained in a signal of a command for a handover received in a mobile station. At the same time, when the parameter (KI), contained in the signal of the command for handover implementation is increased in comparison with the previous parameter saved in a mobile station (UE), in the mobile station on the basis of the main key (K_ASME) and the first key (K_eMB[n]), defined by the specified previous parameter (KI), a new first key (K_eMB[n+1]) is generated, and when the parameter (KI) is not increased, in the mobile station on the basis of the second key (K_eMB[n][m]) a new second key (K_eMB[n][m+1]) is generated, being intended for generation of a certain key used when communicating between the initial base station and the mobile station.

EFFECT: generation of the first key used in a target base station in accordance with a simplified procedure.

4 cl, 12 dwg