Physical sensor model

The typical configuration in a system is to have one NFP provider that implements NFC. However, there can be multiple NFP providers on a given system, each supporting a different or the same NFP technologies. For example, a given tablet form-factor system may have multiple NFC antennas placed around its edges, and the back of the tablet could have an additional combined NFC/TransferJet touch-point used to connect to a wireless dock. In the physical modeling of NFP on this example system, these additional antennas are not individually addressable within a single provider. To provide individually-addressable touchpoints, the system maker would need to implement a specific NFP provider instance for each of the antennas and NFP technologies. When any device becomes proximate across one of these providers, the published messages are transmitted to all subscribers.

NFC device driver interface (DDI) overview
Near field proximity DDI reference