Configuring each of two signals having a frequency bandwidth which is less than a system frequency bandwidth available to the network node for wireless transmissions. The method includes allocating a first signal of the two signals on a first time and frequency resource based on a configuration in which the first signal is included, allocating a second signal of the two signals on a second time and frequency resource based on the configuration, wherein frequency use of the second time and frequency resource is at least partly different from frequency use of the first time and frequency resource, and providing signalling for a wireless communication device enabling the wireless communication device to derive the first and second time and frequency resources. Allocating the first and second signals includes allocating another time and frequency resource adjacent in time or frequency to at least one of the first and the second signals.