Mobile Positioning Center. The MPC serves as the point of interface to the wireless network for the location network.

The MPC serves as the entity which retrieves, forwards, stores, and controls position data within the location network. It

can select the PDE(s) to use in position determination and forwards the position to the requesting entity or stores it for

subsequent retrieval. In the case of a PDE with autonomous determination capability, the MPC receives and stores the

position estimation for subsequent retrieval. The MPC may restrict access to position information (e.g. require that the

MS be engaged in an emergency services call or only release position information to authorized nodes).