Preservation of positioning integrity associated with wireless systems

A wireless transmit/receive unit (WTRU) comprising:

• a processor configured to:
• receive a first subset of positioning reference signal (PRS) configuration information, a second subset of PRS configuration information, and a third subset of PRS configuration information;
• receive configuration information indicating error source information, a first switching pattern, and a positioning uncertainty threshold;
• perform a first set of measurements using the first switching pattern, the first subset of PRS configuration information, and the second subset of PRS configuration information;
• determine a first positioning uncertainty based on the first set of measurements and the error source information;
• determine that the first positioning uncertainty is greater than the positioning uncertainty threshold;
• and
• send, based on the determination that the first positioning uncertainty is greater than the positioning uncertainty threshold, an indication indicating measurement information and positioning uncertainty information.

A method comprising:

• receiving a first subset of positioning reference signal (PRS) configuration information, a second subset of PRS configuration information, and a third subset of PRS configuration information;
• receiving configuration information indicating error source information, a first switching pattern, and a positioning uncertainty threshold;
• performing a first set of measurements using the first switching pattern, the first subset of PRS configuration information, and the second subset of PRS configuration information;
• determining a first positioning uncertainty based on the first set of measurements and the error source information;
• determining that the first positioning uncertainty is greater than the positioning uncertainty threshold;
• and
• sending, based on the determination that the first positioning uncertainty is greater than the positioning uncertainty threshold, an indication indicating measurement information and positioning uncertainty information.