A novel dynamic data collection paradigm enables the mobile users to access the network wide data from anywhere and anytime along their walks. In this paper, the authors propose a new and powerful protocol for mobile users to collect their dynamic data in a ubiquitous way. As the mobile user moves, the routing structure of data collection (tree) is additively updated. Here, a little modification is done to the existing routing structure while the routing performance is confined and assured with regard to the optimal value. The proposed protocol is easy to carry out.