Managing aggregated node group power states. A reflected energy device may transmit energy to one of multiple aggregated node groups. Each aggregated node group includes multiple device nodes. The aggregated node group may be moved from one location to another. The transmitted energy is reflected to detect occurrence of a state change condition. A communication device such as the reflected energy device or an anchor node then instructs device node(s) of the aggregated node group to enter a high power state and to enter a low power state.