A method includes receiving, from a reference node, a first positioning measurement reference signal transmitted through N transmission paths, where N is an integer greater than 1; measuring first positioning information based on the first positioning measurement reference signal on a first transmission path, where the first transmission path is one of the N transmission paths; and sending first indication information and a second positioning measurement reference signal to the reference node, where the first indication information is used to indicate the first transmission path, so that the reference node measures second positioning information on the first transmission path.