Abstract: Provided are systems, devices and methods for determining a spatial location of a target radio frequency node/nodes of a first type, located in a defined space. The system includes a plurality of radio frequency nodes of a second type also located within the defined space and communicate with the target radio frequency node. A radio frequency node of a third type located within/outside the defined space communicates with the plurality of radio frequency nodes of the second type to determine the spatial location of the target radio frequency node.