Patent ID: 8880074

Claim:
An operating method of a femto base station comprising: broadcasting a plurality of public land mobile network (PLMN) identities; broadcasting a plurality of closed subscriber group (CSG) identities correlated with the plurality of PLMN identities; and establishing wireless communication with user equipment based on the broadcasted PLMN and CSG identities, wherein the establishing wireless communication with user equipment based on the broadcasted PLMN and CSG identities comprises: receiving a selected one of the plurality of PLMN identities and a selected one of the plurality of CSG identities from the user equipment; sending the selected PLMN identity and the selected CSG identity to an evolved packet core; receiving a grant message or a refusal message from the evolved packet core; and sending a grant message or a refusal message to the user equipment according to the message received from the evolved packet core.