Methods for reference determination in inter-RAT TDOA

A wireless device configured to obtain positioning reference signal configuration information, the wireless device comprising:

• transceiver circuitry configured for communicating directly or indirectly with a location server and one or more wireless communication networks;
• and
• processing circuitry operatively associated with the transceiver circuitry and configured to:
• send, to a location server, a request for assistance, the request for assistance comprising information about a cell serving the wireless device according to a first radio access technology (RAT);
• receive, in response to the request for assistance, positioning reference signal configuration information, the positioning reference signal configuration information identifying one or more signals transmitted according to a second RAT, for measurement by the wireless device;
• and
• measure at least one of the identified one or more signals.

A location server configured to provide positioning reference signal configuration information to a wireless device, the location server comprising:

• communication circuitry configured for communicating directly or indirectly with the wireless device;
• and
• processing circuitry operatively associated with the communication circuitry and configured to:
• receive, from the wireless device, a request for assistance, the request for assistance including information comprising information about a cell serving the wireless device according to a first radio access technology (RAT);
• and
• send to the wireless device, in response to the request for assistance, positioning reference signal configuration information, the positioning reference signal configuration information identifying one or more signals transmitted according to a second RAT, for measurement by the wireless device.