To provide a base station and its method that can be shared among network business operators and can independently manage arriving connection requests.SOLUTION: In a telecommunication system 1, a base station measures an amount of resource use for each PLMN (Public Land Mobile Network), compares the measurement value with a threshold vale, and thereby sets ac-Barring information for each PLMN. Furthermore, in a shared cell, the base station distributes a system information block 2 (SIB2) including the ac-Barring information for each PLMN, thereby regulates access by a user device, and blocks a new connection.SELECTED DRAWING: Figure 1
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