Method and device for reducing sideband radiation stray in charging scene, and terminal
A stray, terminal technology, applied in circuit devices, battery circuit devices, different battery charging directions, etc., can solve the problems of low frequency of interference signals, affecting the quality of radio frequency signals, and greatly affecting the charging experience.
Active Publication Date: 2021-09-24
HONOR DEVICE CO LTD
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Problems solved by technology
The radio frequency module is mainly used to transmit radio frequency signals, and the interference signal coupled to the radio frequency module will produce sideband radiation spurious with the main frequency modulation such as GSM / LTE, thus affecting the quality of the transmitted radio frequency signal
[0004] And because the interference signal generated on the power supply has low frequency and strong energy, it cannot be suppressed by means of filter capacitors on the terminal
In one implementation, the sideband radiation spurious problem caused by fast charging is solved by directly unplugging the fast charging source, and this solution has a great impact on the user's charging experience
Method used
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[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0055] Before describing the technical solution of the present application, the technical scenario of the present application will be described first. The implementation of the embodiment of the present application will be described in detail below with reference to the accompanying drawings. In the embodiment of the present application, the terminal may be a mobile phone, a tablet computer, a personal digital assistant, a router, a media player, and the like. ...
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The embodiment of the invention provides a method and device for reducing sideband radiation stray in a charging scene and a terminal. The method comprises the steps of obtaining a service state of at least one of a call service and a data service of the terminal; if at least one of the call service and the data service of the terminal is in a service state, determining a first communication frequency band; acquiring the current charging power of the charging unit; and if the interference frequency generated by the current charging power is larger than or equal to the first frequency interference threshold value, sending first indication information to the charging unit, wherein the first indication information is used for indicating that the current charging power is adjusted to be first target charging power, and the interference frequency generated by the first target charging power is smaller than the first frequency interference threshold value, and after the charging power is adjusted to the first target charging power, the interference frequency generated by the first target charging power is smaller than the interference frequency generated by the charging power before adjustment, so that sideband radiation stray generated to the current communication frequency band can be reduced.
Description
technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method, device and terminal for reducing spurious sideband radiation in a charging scenario. Background technique [0002] In order to meet people's demand for fast charging of mobile terminals, fast charging technology has emerged as the times require. The fast charging technology mainly shortens the charging time by increasing the charging power. Although the fast charging technology shortens the charging time, it will generate a strong interference signal on the fast charging source, and the generated interference signal will have a negative impact on some functions of the terminal, thus affecting the user experience. [0003] For example: the radio frequency module used in the terminal includes an internal power module and a radio frequency module. Since the radio frequency module has the problem of poor isolation between the internal power modu...
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Patent Timeline
Login to View More IPC IPC(8): H02J7/00H04B15/00
CPCH02J7/007H02J7/00712H02J7/0047H02J7/0029H04B15/00
Inventor 陈旭陈嘉琪靳应祥郭奇
Owner HONOR DEVICE CO LTD