A base station (110, 120, 210, 300), comprising: a radio configured to communicate with a user equipment (150, 400) served by the base station; and a processor and/or one or more circuits, coupled to the radio, configured to: acquire device capabilities of the user equipment; transmit notification configuration parameters to the user equipment based on the device capabilities, wherein the device capabilities identify whether the user equipment is capable of performing interworking notification in which the user equipment notifies the base station of the occurrence of a first trigger, receives a measurement configuration message for configuring scanning parameters used by the user equipment when performing an environmental scan, the measurement configuration message comprising a second trigger, and performs the environment scan and reports the results of the environment scan to the base station upon detecting the occurrence of the second trigger; and receive a measurement report from the user equipment providing results of the environment scan performed by the user equipment, and determine whether to instruct the user equipment to handover communication to a wireless access point (165, 175, 185, 195, 230) based on the results of the environment scan, the wireless access point using a different radio access technology than the base station. a radio configured to communicate with a user equipment (150, 400) served by the base station; and a processor and/or one or more circuits, coupled to the radio, configured to: acquire device capabilities of the user equipment; transmit notification configuration parameters to the user equipment based on the device capabilities, wherein the device capabilities identify whether the user equipment is capable of performing interworking notification in which the user equipment notifies the base station of the occurrence of a first trigger, receives a measurement configuration message for configuring scanning parameters used by the user equipment when performing an environmental scan, the measurement configuration message comprising a second trigger, and performs the environment scan and reports the results of the environment scan to the base station upon detecting the occurrence of the second trigger; and receive a measurement report from the user equipment providing results of the environment scan performed by the user equipment, and determine whether to instruct the user equipment to handover communication to a wireless access point (165, 175, 185, 195, 230) based on the results of the environment scan, the wireless access point using a different radio access technology than the base station. acquire device capabilities of the user equipment; transmit notification configuration parameters to the user equipment based on the device capabilities, wherein the device capabilities identify whether the user equipment is capable of performing interworking notification in which the user equipment notifies the base station of the occurrence of a first trigger, receives a measurement configuration message for configuring scanning parameters used by the user equipment when performing an environmental scan, the measurement configuration message comprising a second trigger, and performs the environment scan and reports the results of the environment scan to the base station upon detecting the occurrence of the second trigger; and receive a measurement report from the user equipment providing results of the environment scan performed by the user equipment, and determine whether to instruct the user equipment to handover communication to a wireless access point (165, 175, 185, 195, 230) based on the results of the environment scan, the wireless access point using a different radio access technology than the base station.