A network node constituting a telecommunications system together with one or more neighboring nodes includes a telecommunications control device, which includes a timing control signal receiver for receiving timing control signals transmitted from the neighboring nodes, and a transmission timing calculator for determining data transmission timing of the network node, based on reception timing of the timing controls signal of the neighboring nodes. The device further includes a timing control signal transmitter for transmitting a timing control signal with a phase indicative of data transmission timing of the network node reflected, a data communicator for transmitting and receiving a data signal to and from the neighboring nodes, and a phase state manager for controlling transmission of the timing control signal and data signal in accordance with the phase state of the network node.