A method of operating a user equipment, UE, device, comprising: operating, at said UE device, a first modem in said UE device associated with a first communications protocol and a second modem in said UE device associated with a second communications protocol, said first modem being in a powered-up mode and said second modem being in a powered-down mode; monitoring, by said first modem, a first frequency band for discovery signals from small coverage area base stations; receiving, at said first modem, a discovery signal via said first frequency band from a small coverage area base station, said discovery signal being in accordance with said first communications protocol, said first frequency band and said first communications protocol being used by a macro base station to communicate user data, the discovery signal comprising information for identifying a second frequency band and said second communications protocol being used by the small coverage area base station to communicate user data; identifying a second frequency band and said second communications protocol being used by the small coverage area base station to communicate user data based on the discovery signal; determining that the UE device supports communications in the identified second communications band using the identified second communications protocol and that the UE desires to attach to the small coverage area base station; in response to receiving said discovery signal, switching said second modem to a powered-up mode; and operating said second modem to scan said second frequency band for a signal from said small coverage area base station in accordance with said second communications protocol or transmit a probe signal to said small coverage area base station in said second frequency band, said probe signal being in accordance with said second communications protocol, said second communications protocol being different from said first communications protocol. operating, at said UE device, a first modem in said UE device associated with a first communications protocol and a second modem in said UE device associated with a second communications protocol, said first modem being in a powered-up mode and said second modem being in a powered-down mode; monitoring, by said first modem, a first frequency band for discovery signals from small coverage area base stations; receiving, at said first modem, a discovery signal via said first frequency band from a small coverage area base station, said discovery signal being in accordance with said first communications protocol, said first frequency band and said first communications protocol being used by a macro base station to communicate user data, the discovery signal comprising information for identifying a second frequency band and said second communications protocol being used by the small coverage area base station to communicate user data; identifying a second frequency band and said second communications protocol being used by the small coverage area base station to communicate user data based on the discovery signal; determining that the UE device supports communications in the identified second communications band using the identified second communications protocol and that the UE desires to attach to the small coverage area base station; in response to receiving said discovery signal, switching said second modem to a powered-up mode; and operating said second modem to scan said second frequency band for a signal from said small coverage area base station in accordance with said second communications protocol or transmit a probe signal to said small coverage area base station in said second frequency band, said probe signal being in accordance with said second communications protocol, said second communications protocol being different from said first communications protocol.