Provided are a method of transmitting a signal of a multi-node system. The method includes: transmitting a first signal to a user equipment via the plurality nodes by applying a first power factor; receiving power feedback information as a feedback from the user equipment; and transmitting a second signal to the user equipment via at least one node among the plurality of nodes by applying a second power factor, wherein the first power factor and the second power factor are elements for determining transmit power to be applied to the plurality of nodes, wherein the power factor information includes information for transmit power applicable to each of the plurality of nodes by measuring the first signal, and wherein the second power factor is determined based on the power factor information.