METHOD AND APPARATUS FOR SECURITY COMMUNICATION OF CARRIER AGGREGATION BETWEEN BASE STATIONS

摘要

This invention discloses a method for security communication of carrier aggregation between base stations, which method comprises receiving, by a user equipment, a first message to add a cell controlled by a secondary base station as a service cell sent by a primary base station; and creating, by the user equipment, a security key for communication with cells controlled by the secondary base station according to security context of the primary base station and the first message. This invention further discloses the corresponding user equipment and base stations. Implementation of the method and apparatus according to the present invention makes it possible to effectively protect security of data transmission of the air interface and to avoid attacks on air interface security.

主权项

1. A method for security communication of carrier aggregation between base stations, comprising:
receiving, by a user equipment, a first message sent by a primary base station, the first message indicating to add a cell controlled by a secondary base station as a service cell of the user equipment; and creating, by the user equipment, a security key of the secondary base station according to security context of the primary base station and the first message; and communicating according to the second security key of the secondary base station, by the user equipment, with the secondary base station while keeping in touch with the primary base station wherein the first message is Radio Resource Control connection reconfiguration message comprising a security algorithm determined by the secondary base station according to safety capacity of the user equipment.