A method performed by a broadcast controller , the broadcast controller being in radio frequency, RF, communication with one or more independent units , each of the one or more independent units including one or more commanders and one or more energy controllers, the method comprising: communicating, via RF signals, with a first node of a first independent unit to obtain an address of the first node, the first node being at least one of a first commander or a first energy controller of the first independent unit; obtaining from the first node an address of a second node of the first independent unit with which the first node is configured to communicate, the second node being at least one of a second commander or a second energy controller of the first independent unit ; communicating, via the RF signals, with the second node of the first independent unit; determining if the first node or the second node is configured to communicate with at least one third node of the first independent unit ; when the first node or the second node is configured to communicate with the at least one third node of the first independent unit, obtaining an address of the at least one third node from the first node or the second node that is configured to communicate with the at least one third node of the first independent unit ; and when the first node and the second node each fail to be configured to communicate with the at least one third node of the first independent unit, determining that each of the nodes of the first independent unit have been identified upon the determination indicating that the first node fails to be configured to communicate with nodes other than the second node and the second node fails to be configured to communicate with nodes other than the first node. communicating, via RF signals, with a first node of a first independent unit to obtain an address of the first node, the first node being at least one of a first commander or a first energy controller of the first independent unit; obtaining from the first node an address of a second node of the first independent unit with which the first node is configured to communicate, the second node being at least one of a second commander or a second energy controller of the first independent unit ; communicating, via the RF signals, with the second node of the first independent unit; determining if the first node or the second node is configured to communicate with at least one third node of the first independent unit ; when the first node or the second node is configured to communicate with the at least one third node of the first independent unit, obtaining an address of the at least one third node from the first node or the second node that is configured to communicate with the at least one third node of the first independent unit ; and when the first node and the second node each fail to be configured to communicate with the at least one third node of the first independent unit, determining that each of the nodes of the first independent unit have been identified upon the determination indicating that the first node fails to be configured to communicate with nodes other than the second node and the second node fails to be configured to communicate with nodes other than the first node. <EOS>