Patent ID: 8331910
Filing Date: 2012-12-11
Classification: H04L,H04W

Abstract:
1. An access authority changing method in a cellular system including at least one terminal, a core network apparatus, and a base station included in a cell to which only a terminal permitted to make access can be connected, the core network apparatus storing a first list, which is a white list obtained by listing cells accessible by terminals, and the terminals storing a second list, which is a white list obtained by listing cells to which the terminals can access, the access authority changing method comprising: the base station notifying the core network apparatus that the base station permits access of a predetermined terminal not permitted to access a cell of the base station; the core network apparatus, which receives the notification, adding a cell of the base station to the first list as a cell to which the predetermined terminal can access; the core network apparatus transmitting the first list added with the cell to the base station; the base station transmitting the first list received from the core network apparatus to the cell in a broadcast manner; and the predetermined terminal adding, based on contents of the first list received from the base station, a cell of the base station to the second list, accessing the cell, and starting communication with the core network apparatus.