The present invention relates to the provision of a middleware platform apparatus and related method operating on top of the heterogeneous wireless network. In other words, there is provided at least one bearer service in a heterogeneous wireless network for at least one application running at a mobile endpoint roaming in the heterogeneous wireless network. It is proposed to dynamically adjust (S10, S12) the at least one bearer service provided through the heterogeneous wireless network (10) according to an operational context of a mobile endpoint (12).