A system, method, and apparatus are presented for coordinating handover. A first controller that is associated with a first RAN cell determines a first handover parameter value that is for use in determining whether to cause handover from the first RAN cell to a second RAN cell having a different RAT. The first controller transmits, to a second controller associated with the second RAN cell, information relating to the first handover parameter value. The first controller further transmits, to the second controller, a value of a QoS parameter or a UE capability parameter associated with the information. The first controller receives, from the second controller, an indication of whether the second controller has adjusted a second handover parameter value based on the transmitted information, where the second handover parameter value is for use in determining whether to cause handover from the second RAN cell to the first RAN cell.