Abstract: In a method for determining a candidate line of sight path, a wireless local area network device receives a signal, where the signal includes radio signals sent by a to-be-identified terminal through a plurality of paths. The radio signal includes a first training sequence, and the signal includes superposition of a plurality of first training sequences transmitted through the plurality of paths. The wireless local area network device matches the signal and a second training sequence to obtain time points at which the plurality of first training sequences transmitted through the plurality of paths are received. The wireless local area network device determines a path of an earliest-received radio signal as a candidate line of sight path.

Abstract: A method for identifying a line of sight path and a wireless device are disclosed. In the method, an access point (AP) receives radio signals sent by a to-be-identified terminal through a plurality of paths, and obtains an energy of the radio signal transmitted through each of the paths. When a ratio of an energy of the radio signal transmitted through a candidate path to a total energy of the radio signals transmitted through the plurality of paths is greater than a threshold, the AP determines that the candidate path of the plurality of paths is a line of sight path.