A gateway apparatus for managing terminals (10-1 to 10-L) and a plurality of base stations (20-1 to 20-M), comprising: at least one C-plane processing unit that processes a C-plane and controls signaling to transfer a control signal; N U-plane processing units (32-1 to 32-N) that process a U plane and transfer user data of target terminals that are included in their own entry, N being an integer of 2 or more, wherein each of N U-plane processing units is adapted to make the target terminal allocated to the each U-plane processing unit to perform to entry to the each U-plane processing unit, and guarantee a band for the allocated target terminal; and a switch that connects the plurality of base stations to the C-plane processing unit and the N U-plane processing units, wherein each of the N U-plane processing units includes: a load status information notification unit that notifies the C-plane processing unit of its own load status, and wherein the C-plane processing unit includes: a load status information acquisition unit that acquires information on a load status from each of the N U-plane processing units; a service level information acquisition unit that acquires information on service levels of the target terminals from a server apparatus which authenticates the target terminals when the target terminals try to perform entry to a network in which the base stations and the gateway apparatus are located; and a terminal allocation unit that allocates, based on the load status of each of the N U-plane processing units and the service levels of the target terminals, one of the N U-plane processing units as an entry destination to the target terminals. at least one C-plane processing unit that processes a C-plane and controls signaling to transfer a control signal; N U-plane processing units (32-1 to 32-N) that process a U plane and transfer user data of target terminals that are included in their own entry, N being an integer of 2 or more, wherein each of N U-plane processing units is adapted to make the target terminal allocated to the each U-plane processing unit to perform to entry to the each U-plane processing unit, and guarantee a band for the allocated target terminal; and a switch that connects the plurality of base stations to the C-plane processing unit and the N U-plane processing units, wherein each of the N U-plane processing units includes: a load status information notification unit that notifies the C-plane processing unit of its own load status, and a load status information notification unit that notifies the C-plane processing unit of its own load status, and wherein the C-plane processing unit includes: a load status information acquisition unit that acquires information on a load status from each of the N U-plane processing units; a service level information acquisition unit that acquires information on service levels of the target terminals from a server apparatus which authenticates the target terminals when the target terminals try to perform entry to a network in which the base stations and the gateway apparatus are located; and a terminal allocation unit that allocates, based on the load status of each of the N U-plane processing units and the service levels of the target terminals, one of the N U-plane processing units as an entry destination to the target terminals. a load status information acquisition unit that acquires information on a load status from each of the N U-plane processing units; a service level information acquisition unit that acquires information on service levels of the target terminals from a server apparatus which authenticates the target terminals when the target terminals try to perform entry to a network in which the base stations and the gateway apparatus are located; and a terminal allocation unit that allocates, based on the load status of each of the N U-plane processing units and the service levels of the target terminals, one of the N U-plane processing units as an entry destination to the target terminals.