A small cell base station, a method, a computer program product and a wireless telecommunications network are disclosed. The small cell base station is deployable in a wireless telecommunications network in which a macro base station provides a first region of radio coverage using a first frequency band and a second region of radio coverage using a second frequency band, the first region of radio coverage comprising a plurality of angularly spaced first radio beams, the second region of radio coverage comprising at least a second radio beam, the second radio beam being arranged to radiate from the macro base station between adjacent angularly spaced first radio beams, the small cell base station comprising: transmission logic operable to provide a third region of radio coverage using a small cell frequency band, the small cell frequency band comprising one of the first frequency band and the second frequency band; reception logic operable to measure a signal quality of transmissions received from macro base stations using the first frequency band and the second frequency band and to identify as an excluded frequency band that one of the first frequency band and the second frequency band which has a highest signal quality; and transmission frequency band selection logic operable to select as the small cell frequency band that frequency band other than the excluded frequency band. Through this approach both the macro base stations and the small cell base station can share frequency bands. By excluding the highest signal quality frequency band from the set and excluding that high-quality frequency band from being used by the small cell base station, the overall performance of the wireless telecommunications network is improved.