Multipath correction method for fine timing measurements

A network device, comprising:

• a processor;
• at least one network interface controller configured to provide access to a network;
• and
• a memory communicatively coupled to the processor, wherein the memory comprises a ranging logic that is configured to:
• select a transmit chain in a plurality of transmit chains of the network device and a receive chain in a plurality of receive chains of the network device for a ranging measurement associated with a first network device;
• determine whether a channel between the network device and the first network device experiences a line-of-sight (LOS) condition or a non-LOS (nLOS) condition, wherein the determination is based on a spread of tentative ranging measurements;
• transmit a ranging request frame to the first network device based on the selected transmit chain;
• receive a ranging response frame from the first network device based on the selected receive chain;
• and
• determine a distance between the network device and the first network device based on a round-trip time between the network device and the first network device and the channel being determined to experience the LOS condition or the nLOS condition.

A method for performing a ranging measurement, comprising:

• selecting a transmit chain in a plurality of transmit chains of a network device and a receive chain in a plurality of receive chains of the network device for the ranging measurement associated with a first network device;
• transmitting a ranging request frame to the first network device based on the selected transmit chain;
• receiving a ranging response frame from the first network device based on the selected receive chain;
• determining a distance between the network device and the first network device based on a round-trip time between the network device and the first network device;
• and
• determining whether a channel between the network device and the first network device experiences an LOS condition or an nLOS condition, wherein the determination is based on a spread of tentative ranging measurements.