A method, in a UPnP environment, for processing input signals from electronic devices (120, 130 or 400, 420 430) of a home network, the method comprising: requesting, by a control point (110 or 410), the electronic devices (120, 130 or 400, 420, 430) in the home network to transmit input capability information; receiving, by said control point, the input capability information from the electronic devices (120, 130 or 400, 420, 430) in response to the request; determining, by said control point, among the electronic devices (120, 130, or 400, 420, 430), a receiver (130 or 400), for receiving first input signals, and at least two senders (120 or 420, 430), for sending the first input signals; performing, by said control point, sessions setup between the receiver (130 or 400) and the at least two senders (120 or 420, 430), based on the input capability information; and according to a preset multiple-input mode, setting (230, 240) an input signal processing scheme for the receiver (130 or 400) to process the first input signals transmitted from said at least two senders (120 or 420, 430), wherein when the input signal processing scheme is in a monopolized mode, second input signals transmitted from non-monopolized senders (120 or 420) except for inputs from a monopolized sender among the at least two senders (120 or 420, 430) are blocked by the receiver (130 or 400) according to the input signal processing scheme, wherein said setting (230, 240) the input signal processing scheme comprises selecting the monopolized sender among the at least two senders (120 or 420, 430) based on the input capability information, and wherein a second input signal transmitted from the monopolized sender is not to be blocked. requesting, by a control point (110 or 410), the electronic devices (120, 130 or 400, 420, 430) in the home network to transmit input capability information; receiving, by said control point, the input capability information from the electronic devices (120, 130 or 400, 420, 430) in response to the request; determining, by said control point, among the electronic devices (120, 130, or 400, 420, 430), a receiver (130 or 400), for receiving first input signals, and at least two senders (120 or 420, 430), for sending the first input signals; performing, by said control point, sessions setup between the receiver (130 or 400) and the at least two senders (120 or 420, 430), based on the input capability information; and according to a preset multiple-input mode, setting (230, 240) an input signal processing scheme for the receiver (130 or 400) to process the first input signals transmitted from said at least two senders (120 or 420, 430), wherein when the input signal processing scheme is in a monopolized mode, second input signals transmitted from non-monopolized senders (120 or 420) except for inputs from a monopolized sender among the at least two senders (120 or 420, 430) are blocked by the receiver (130 or 400) according to the input signal processing scheme, wherein said setting (230, 240) the input signal processing scheme comprises selecting the monopolized sender among the at least two senders (120 or 420, 430) based on the input capability information, and wherein a second input signal transmitted from the monopolized sender is not to be blocked.