INTERFERENCE MITIGATION FOR POSITIONING REFERENCE SIGNALS

摘要

Techniques are provided, which may be used for determining a position of a user equipment (mobile device). In certain example implementations, tones in positioning signals from one or more sources that may interfere with certain positioning signals be estimated and some form of interference mitigation may be applied, which may better enable the user equipment to acquire certain other positioning signals that may be useful in determining a position of the user equipment.

主权项

1. A method for use in determining a position of a user equipment, the method comprising:
measuring, by a wireless transceiver in the user equipment, a plurality of positioning signals that are synchronized relative to one another, to obtain initial positioning measurements; estimating, by a processor in the user equipment, a first plurality of tones of one or more interfering station(s), based on the initial positioning measurements measured in a current cyclical period during which positioning signals are transmitted per a transmission schedule, and based on identification of the one or more interfering station(s); mitigating, by the processor in the user equipment, the first plurality of tones of one or more interfering station(s), from the initial positioning measurements measured in the current cyclical period, to obtain modified positioning measurements of the current cyclical period; determining, by the processor in the user equipment, a first plurality of arrival times at the user equipment, based at least on the initial positioning measurements; determining, by the processor in the user equipment, a second plurality of arrival times at the user equipment, based at least on the modified positioning measurements; and computing, by the processor in the user equipment, a position of the user equipment based, at least in part, on the first plurality of arrival times and the second plurality of arrival times.