Patent ID: 8649767

Claim:
A Femtocell base station comprising: a determination unit that, upon receiving a location update request message from UE (user equipment), determines whether a first message that prompts said UE to again attempt a location update should be transmitted to said UE, whether a second message that prompts said UE to divert to another network should be transmitted to said UE, or whether a third message notifying said UE that the location update request is accepted should be transmitted to said UE; a transmission unit that transmits to said UE either said first message, or said second message, or said third message according to the determination of said determination unit; and a control unit that manages regulation information for determining that a UE is a UE to which said second message should be transmitted; wherein said determination unit, upon accepting a location update request from said UE, acquires information that specifies said UE, refers to said regulation information that is managed by said control unit, and, if the information that specifies said UE corresponds to said regulation information, determines to transmit said second message to said UE.