Signal transmission method, receiving end, transmitting end and terminal equipment

Abstract

Embodiments of the invention disclose a signal transmission method, a receiving end, a transmitting end and terminal equipment, relate to the technical field of communication, and can solve the problem of lowering of charging efficiency of the terminal equipment caused by lowering of actual power received by the terminal equipment due to a reduced induction area of a wireless charging transmitterand the terminal equipment when the terminal equipment suffers from offset or movement in the charging process of the terminal equipment. According to a specific scheme: the receiving end obtains a difference value between target power and first power, wherein the target power is power requested by the receiving end from the transmitting end, and the first power is power of a wireless electric signal transmitted to the receiving end by the transmitting end according to the target power; the receiving end transmits the difference value to the transmitting end, wherein the absolute value of thedifference value is not within a preset range, and the difference value is used for allowing the transmitting end to adjust the first power; and the receiving end receives the wireless electric signalfrom the transmitting end, and the power of the wireless electric signal is the adjusted first power.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a signal transmission method, a receiving end, a sending end, and a terminal device. Background technique [0002] Wireless charging technology is a new technology based on the principle of electromagnetic induction. A wireless charging transmitter based on wireless charging technology can charge terminal devices without a charging power cord. Generally, a wireless charging transmitter includes one or more primary coils, and when the wireless charging transmitter is working, only one of the primary coils can be activated at a time. [0003] At present, most wireless charging transmitters include three primary coils, two of which are placed side by side, and another primary coil is stacked in the middle of the two primary coils. After the user places the terminal device on the wireless charging transmitter, the wireless charging transmitter c...

AI Technical Summary

Problems solved by technology

[0004] However, in the above method, in the process of charging the terminal device, if the induction area between the wireless charging transmitter and the terminal device is reduced due to the offset or movement of the terminal device, then the electrical signal sent by the wireless charging transmitter The power may also be reduced, which may reduce the actual power received by the terminal device, thereby reducing the charging efficiency of the terminal device

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