Communication is implemented between at least one access node of a wireless network and a terminal attached to the wireless network. The communication is on at least one narrowband carrier (311-1, 311-2) comprising resources (308) in a first spectrum (301) and operating according to a first radio access technology, e.g., Narrowband Internet of Things, NB-IoT. The first spectrum (301) is arranged at least partly within a second spectrum (302) on which communication between the at least one access node and a second terminal is executed on a wideband carrier (312). The wideband carrier (312) comprises resources (308) in the second spectrum (302) and operates according to a second radio access technology different to the first radio access technology, e.g., Machine-Type Communication, MTC, or evolved UMTS radio access, E-UTRA. In some examples, the first spectrum (301) and the second spectrum (302) both may comprise a shared spectrum.