The position of a mobile terminal is determined including receiving location
determination signals from satellite positioning system transmitters. Location
assistance information is received from a wide area wireless communication network
in an associated format defined by a protocol of the network. Location assistance
information is received from a local wireless transmitter in the associated format.
The local wireless transmitter and the wide area wireless communication network
are uncoordinated and have different associated wireless transmission protocols.
The position of the mobile terminal is determined based on the received signals
from the satellite positioning system transmitters and location assistance information
received from either the wide area wireless communication network or the local
wireless transmitter. The source of the location assistance information may be
selected based on availability and may be an ad hoc protocol wireless transmitter,
such as a Bluetooth transmitter.