Patent ID: 8340571

Claim:
A repeater that relays a signal between a base station and a service side comprising: a variable attenuator that attenuates an input signal that is received from the base station according to a predetermined attenuation value; a forward direction signal processor that performs an amplifying and filtering processing and outputs an output signal of the variable attenuator; a repeater controller that detects output signal intensity of the forward direction signal processor and that controls an attenuation value of the variable attenuator; and a repeater supervisor that transmits output signal intensity that is detected by the repeater controller to a management server, and that receives an attenuation value change request, which includes an attenuation value to be changed, from the management server, and that transfers the attenuation value change request to the repeater controller, wherein the repeater controller changes an attenuation value of the variable attenuator according to an attenuation value that is transferred from the management server through the repeater supervisor.