A method is described synchronization in a communication system which comprises a master anchor device, a first anchor device, and a second anchor device. The method comprises: i) transmitting, by the master anchor device, a first message to the first anchor device and to the second anchor device using a first ultra-wide band (UWB) communication, wherein the first message is indicative of a master clock of the master anchor device receiving, by the first anchor device, the first message, and synchronizing a first clock of the first anchor device based on the master clock, and iii) receiving, by the second anchor device, the first message, and synchronizing a second clock of the second anchor device based on the master clock. Furthermore, a communication system and a use of UWB communication is described.