In one or more embodiments of the present disclosure, the method further includes: receiving locating information fed back by the target mobile terminal.

Sending the supplementary broadcast frame instruction to the gateway device and the at least one other gateway device within the first preset distance range relative to the gateway device includes:

determining a second preset distance range according to the locating information, wherein the second preset distance range is a range defined by taking a positioned location in the locating information as a center and a second distance as a radius; and

sending the supplementary broadcast frame instruction to the gateway device and other gateway devices within the first preset distance range and the second preset distance range.

In this embodiment, the second preset distance range is determined according to the locating information fed back by the target mobile terminal, and other gateway devices to which the supplementary broadcast frame instruction is to be sent is determined on the basis of the first preset distance range and the second preset distance range, thus other gateway devices that are more likely to be connected to the target mobile terminal can be accurately positioned, and the number of other gateway devices to which the temporary supplementary broadcast frame needs to be sent may be reduced to a certain extent, and thereby reducing the overall power consumption of the system.

In one or more embodiments of the present disclosure, the method further includes the following:

determining locating information fed back by the target mobile terminal last time.