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CN-122002489-A - Power control method and device of communication chip

CN122002489ACN 122002489 ACN122002489 ACN 122002489ACN-122002489-A

Abstract

The application provides a power control method and device of a communication chip, wherein the method comprises the steps of determining a power control signal, wherein the power control signal is used for adjusting power supply power of a radio frequency front-end module, the power supply power has a corresponding relation with transmitting power of at least one signal frame, the communication chip comprises the radio frequency front-end module, transmitting the power control signal, and transmitting the at least one signal frame according to the transmitting power of the at least one signal frame. The power control method of the communication chip can reduce the power consumption of the communication chip.

Inventors

  • WANG SHUQI
  • WANG HAO
  • FAN DONGLEI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (20)

  1. 1. A power control method of a communication chip, comprising: determining a power control signal, wherein the power control signal is used for adjusting the power supply power of a radio frequency front end module, the power supply power has a corresponding relation with the transmitting power of at least one signal frame, and the communication chip comprises the radio frequency front end module; Transmitting the power control signal; and transmitting the at least one signal frame according to the transmission power of the at least one signal frame.
  2. 2. The method of claim 1, wherein determining the power control signal comprises: and determining the power control signal according to the transmitting power of the at least one signal frame, the transmitting rate of the at least one signal frame or the service type of the at least one signal frame.
  3. 3. The method of claim 1 or 2, wherein the communication chip further comprises a power controller, the power control signal comprises a first voltage control signal, The transmitting the power control signal includes: And sending the first voltage control signal to the power supply controller, wherein the first voltage control signal is used for indicating the power supply controller to output a first power supply voltage for the radio frequency front end module, and the first power supply voltage has a corresponding relation with the transmitting power of at least one signal frame.
  4. 4. A method according to claim 3, characterized in that the method further comprises: And after the transmission of the at least one signal frame is finished, transmitting a second voltage control signal to the power supply controller, wherein the second voltage control signal is used for indicating the power supply controller to output a preset second power supply voltage for the radio frequency front-end module.
  5. 5. The method of claim 3 or 4, wherein the power supply controller comprises a dc-to-dc buck converter or a low dropout regulator.
  6. 6. The method of any one of claims 3 to 5, wherein the sending the first voltage control signal to the power supply controller comprises: The first voltage control signal is sent to the power supply controller through a mobile industry processor interface MIPI or a general purpose input output GPIO interface.
  7. 7. The method according to any one of claims 1 to 6, wherein the power control signal comprises a first current control signal, The transmitting the power control signal includes: And sending the first current control signal to the radio frequency front end module, wherein the first current control signal is used for adjusting the bias current of the radio frequency front end module, and the bias current has a corresponding relation with the transmitting power of the at least one signal frame.
  8. 8. The method of claim 7, wherein a minimum supply voltage that a power controller in the communication chip can output for the radio frequency front end module is greater than a preset threshold.
  9. 9. The method according to claim 7 or 8, characterized in that the method further comprises: And after the transmission of the at least one signal frame is finished, a second current control signal is transmitted to the radio frequency front end module, wherein the second current control signal is used for controlling the bias current of the radio frequency front end module to be a preset current value.
  10. 10. The method according to any one of claims 7 to 9, wherein said sending the first current control signal to the radio frequency front end module comprises: and sending the first current control signal to the radio frequency front end module through a serial peripheral interface SPI or a synchronous serial interface SSI.
  11. 11. The method of any one of claims 1 to 10, wherein the communication chip further comprises a WiFi chip, and the radio frequency front end module is external to the WiFi chip or integrated within the WiFi chip.
  12. 12. A computer apparatus for use with a communication chip, the communication chip including a radio frequency front end module, the apparatus comprising: The processing module is used for determining a power control signal, wherein the power control signal is used for adjusting the power supply power of the radio frequency front end module, and the power supply power has a corresponding relation with the transmitting power of at least one signal frame; a transmitting module, configured to transmit the power control signal; The transmitting module is further configured to transmit the at least one signal frame according to a transmission power of the at least one signal frame.
  13. 13. The apparatus according to claim 12, wherein the processing module is specifically configured to: and determining the power control signal according to the transmitting power of the at least one signal frame, the transmitting rate of the at least one signal frame or the service type of the at least one signal frame.
  14. 14. The apparatus of claim 12 or 13, wherein the communication chip further comprises a power controller, the power control signal comprises a first voltage control signal, The transmitting module is specifically configured to transmit the first voltage control signal to the power supply controller, where the first voltage control signal is configured to instruct the power supply controller to output a first power supply voltage for the radio frequency front end module, and the first power supply voltage has a corresponding relationship with the transmitting power of the at least one signal frame.
  15. 15. The apparatus of claim 14, wherein the transmitting module is further configured to: And after the transmission of the at least one signal frame is finished, transmitting a second voltage control signal to the power supply controller, wherein the second voltage control signal is used for indicating the power supply controller to output a preset second power supply voltage for the radio frequency front-end module.
  16. 16. The apparatus of claim 14 or 15, wherein the power supply controller comprises a dc-to-dc buck converter or a low dropout regulator.
  17. 17. The apparatus according to any one of claims 14 to 16, wherein the transmitting module is configured to transmit the first voltage control signal to the power supply controller via a mobile industry processor interface MIPI or a general purpose input output GPIO interface.
  18. 18. The apparatus according to any one of claims 10 to 15, wherein the power control signal comprises a first current control signal, and wherein the transmitting module is configured to specifically transmit the first current control signal to the radio frequency front end module, and wherein the first current control signal is configured to adjust a bias current of the radio frequency front end module, and wherein the bias current has a correspondence with a transmit power of the at least one signal frame.
  19. 19. The apparatus of claim 18, wherein a minimum supply voltage that a power controller in the communication chip can output for the radio frequency front end module is greater than a preset threshold.
  20. 20. The apparatus according to claim 18 or 19, wherein the transmitting module is further configured to send a second current control signal to the radio frequency front end module after the end of the transmission of the at least one signal frame, where the second current control signal is configured to control the bias current of the radio frequency front end module to a preset current value.

Description

Power control method and device of communication chip Technical Field The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling power of a communication chip. Background In modern intelligent equipment and the application of the internet of things, the communication chip enables the equipment to be connected to the internet through a wireless local area network, so that various equipment can communicate with each other and automatically operate, and an intelligent application scene is realized. At present, the working time of the communication chip applied in the equipment is longer and longer, such as a game scene, a video, various live broadcasting scenes and the like, which become one of main power consumption reasons, so how to reduce the power consumption of the communication chip in the equipment is a technical problem to be solved. Disclosure of Invention The application provides a power control method and device of a communication chip, which can reduce the power consumption of the communication chip. In a first aspect, a power control method of a communication chip is provided, and the method includes determining a power control signal, wherein the power control signal is used for adjusting power supply power of a radio frequency front end module, the power supply power has a corresponding relation with transmission power of at least one signal frame, the communication chip comprises the radio frequency front end module, transmitting the power control signal, and transmitting the at least one signal frame according to the transmission power of the at least one signal frame. In the prior art, the power supply power of the radio frequency front end module is fixed, and the waste of the power consumption of the communication chip can be caused when the transmitting power of the signal frame is smaller. The application provides a communication chip power control method, a WiFi chip can adjust the power supply power of a radio frequency front end module through a power control signal, and when the transmitting power of a signal frame is smaller, the power supply power of the radio frequency front end module is correspondingly smaller, so that the power consumption of the communication chip is reduced. With reference to the first aspect, in certain implementation manners of the first aspect, the determining the power control signal includes determining the power control signal according to a transmission power of the at least one signal frame, a transmission rate of the at least one signal frame, or a traffic type of the at least one signal frame. The communication chip comprises a wireless fidelity (WIRELESS FIDELITY, wiFi) chip, a power supply controller and a radio frequency front-end module. The WiFi chip may determine the power control signal according to a transmission power of a signal frame to be transmitted, a transmission rate of the signal frame, or a traffic type of the signal frame. The transmission rate of a signal frame refers to the amount of data transmitted per unit time, typically in bits per second (bps). The transmission power of a signal frame is the energy output per unit time, typically in watts (W) or decibel milliwatts (dBm). Illustratively, the service types of the signal frames include data frames, management frames, control frames and the like, and the power control signals determined by different service types can adjust the power supply of the radio frequency front end module to different sizes. In the power control method of the communication chip, the WiFi chip can determine the power control signal according to the transmitting power of the signal frame to be transmitted, the transmitting rate of the signal frame or the service type of the signal frame, so that the power supply power of the radio frequency front end module is adjusted to different sizes, and the power control method is suitable for different transmitting powers, transmitting rates or service types, thereby reducing the power consumption of the communication chip. With reference to the first aspect, in certain implementation manners of the first aspect, the communication chip further includes a power controller, the power control signal includes a first voltage control signal, and the sending the power control signal includes sending the first voltage control signal to the power controller, where the first voltage control signal is used to instruct the power controller to output a first supply voltage for the radio frequency front end module, and the first supply voltage has a corresponding relationship with a transmission power of the at least one signal frame. The power supply controller is used for supplying power to the radio frequency front-end module, and the radio frequency front-end module is used for amplifying a signal frame sent by the WiFi chip. The first supply voltage is proportional to the transmission power