Embodiments herein relate to a method performed in a transmitting node (12) for transmitting at least one burst of energy to one or more receiving nodes (10,13) in a wireless communication network (1). The transmitting node (12) comprises a number of transmit antennas being more than one and wherein the at least one burst of energy carries a payload for one or more receiving nodes (10,13). The transmitting node (12) determines a shift, for one or more transmit antennas, in one or more signal characteristics of a burst of energy of the at least one burst of energy. The shift indicates one or more additional information bits, in addition to the payload, for a first receiving node (10). The transmitting node further transmits, over the one or more transmit antennas, the burst of energy of the at least one burst of energy with the shift in the signal characteristic carrying the payload to one or more receiving nodes (10,13) in the wireless communication network (1).