US 12,452,360 B2
Signal processing method for regulating interference and interference immunity in terminal device and related apparatus
Ming Yin, Shenzhen (CN); Longfei Shi, Shenzhen (CN); and Jiaqi Chen, Shenzhen (CN)
Assigned to Honor Device Co., Ltd., Shenzhen (CN)
Appl. No. 18/010,122
Filed by Honor Device Co., Ltd., Shenzhen (CN)
PCT Filed May 11, 2022, PCT No. PCT/CN2022/092142
§ 371(c)(1), (2) Date Dec. 13, 2022,
PCT Pub. No. WO2023/015998, PCT Pub. Date Feb. 16, 2023.
Claims priority of application No. 202110906987.3 (CN), filed on Aug. 9, 2021.
Prior Publication US 2024/0244130 A1, Jul. 18, 2024
Int. Cl. H04M 1/72454 (2021.01); H04B 15/02 (2006.01); H04M 1/02 (2006.01)
CPC H04M 1/72454 (2021.01) [H04B 15/02 (2013.01); H04M 1/0264 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A signal processing method for regulating interference and interference immunity in a terminal device, the method comprising:
obtaining, by the terminal device, a state factor, wherein the state factor is used for reflecting a communication state of a communication component and a usage state of a functional component in the terminal device, wherein the state factor comprises a communication parameter of the communication component and a source drive voltage or source drive current of a signal line corresponding to the functional component, and the communication parameter comprises a working frequency range and a transmit parameter of the communication component;
down-regulating, by the terminal device, the source drive voltage of the signal line corresponding to the functional component, or down-regulating, by the terminal device, the source drive current of the signal line corresponding to the functional component based on a frequency division frequency or frequency multiplication frequency of a signal transmitted on the signal line corresponding to the functional component falling within the working frequency range of the communication component, to reduce interference of the functional component to the communication component; and
up-regulating, by the terminal device, the source drive voltage of the signal line corresponding to the functional component, or up-regulating, by the terminal device, the source drive current of the signal line corresponding to the functional component based on a voltage amplitude of an electromagnetic wave component that is of an electromagnetic wave radiated by the communication component working in the working frequency range and at the transmit parameter and that is coupled to the signal line corresponding to the functional component being greater than a threshold, to increase interference immunity of the functional component against the communication component;
wherein the functional component comprises a camera component and a display component;
wherein based on a frequency of a mobile industry processor interface (MIPI) signal line of the camera component being 760 MHZ, a communication standard of the communication component is Long Term Evolution (LTE), and a frequency band of the communication component is B8, and wherein the terminal device down-regulates a source drive voltage of the MIPI signal line of the camera component to 150 mV, or the terminal device down-regulates a source drive current of the MIPI signal line of the camera component to 0.5 mA, to reduce interference of the camera component to the communication component;
wherein based on the communication standard of the communication component being New Radio (NR), a frequency band of the communication component is N78, and wherein based on the MIPI signal line of the camera component transmitting a signal, the terminal device up-regulates the source drive voltage of the MIPI signal line of the camera component to 320 mV, or the terminal device up-regulates the source drive current of the MIPI signal line of the camera component to 1.5 mA, to increase interference immunity of the camera component against the communication component;
wherein based on the frequency of the MIPI signal line of the display component being 500 MHz, the communication standard of the communication component is Global System for Mobile Communications (GSM), the frequency band of the communication component is 850, and a channel number of the communication component ranges from 128 to 190, and wherein the terminal device down-regulates the source drive voltage of the MIPI signal line of the display component to 150 mV, or the terminal device down-regulates the source drive current of the MIPI signal line of the display component to 0.5 mA, to reduce interference of the display component to the communication component; and
wherein based on the communication standard of the communication component being GSM, the frequency band of the communication component is 850 and the channel number of the communication component ranges from 191 to 251, and wherein based on the MIPI signal line of the display component transmitting a signal, the terminal device up-regulates the source drive voltage of the MIPI signal line of the display component to 320 mV, or the terminal device up-regulates the source drive current of the MIPI signal line of the display component to 1.5 mA, to increase the interference immunity of the display component against the communication component.