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Radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization

A power amplifier and radio frequency technology, applied in power management, energy consumption reduction, electrical components, etc., can solve problems such as accelerating battery discharge process, affecting terminal standby time, and poor user experience, so as to reduce power consumption and prolong standby And battery life, the effect of reducing power consumption

Active Publication Date: 2020-02-18
SHANGHAI CHUANGGONG COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But even if this solution is adopted, the current of HPUE terminals on the market can still reach 600mA at full power, and the transmit current of 2*2TX MIMO terminals at full power can even reach 1000mA, while the high power consumption of RF PA TX (transmitter), It is bound to accelerate the discharge process of the battery, which will directly affect the standby time of the terminal and bring a bad experience to users

Method used

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  • Radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization
  • Radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization
  • Radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization

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Embodiment 1

[0057] Please refer to figure 2 , an embodiment of the present invention provides a radio frequency power consumption reduction circuit based on power amplifier power supply optimization, including a system power supply module 10, a power coupling module 20, an RFIC LDO module 30, a virtual current node 40, and a power amplifier 50;

[0058] One end of the virtual current node 40 is connected to the power amplifier 50, and the other end is connected to the system power supply module 10 and the RFIC LDO module 30 respectively; the power coupling module 20 is connected to the RFIC LDO module 30;

[0059] The power coupling module 20 is used to couple the transmit power on the target channel, and deliver the coupled electromagnetic wave to the RFIC LDO module 30;

[0060] The RFIC LDO module 30 is used to process the electromagnetic wave coupled to the power coupling module 20 into a DC signal, and feed back the DC signal to the virtual current node 40;

[0061] The virtual cur...

Embodiment 2

[0105] Please refer to Figure 17 The embodiment of the present invention provides a radio frequency power consumption reduction method based on power amplifier power supply optimization, which is implemented by using the radio frequency power consumption reduction circuit based on power amplifier power supply optimization described in Embodiment 1. The method includes:

[0106] S201. The power coupling module couples the transmit power on the target channel, and transmits the coupled electromagnetic wave to the RFIC LDO module;

[0107] S202. The RFIC LDO module processes the electromagnetic wave coupled to the power coupling module into a DC signal, and feeds the DC signal back to the virtual current node;

[0108] S203. The virtual current node calculates a difference between the transmit power and the DC signal, and outputs the difference to the system power supply module;

[0109] S204. The system power supply module adjusts the power supply voltage output to the power a...

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Abstract

The invention discloses a radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization. The circuit comprises a system power supply module, a powercoupling module, an RFIC LDO module, a virtual current node and a power amplifier. One end of the virtual current node is connected with the power amplifier, and the other end of the virtual currentnode is connected with the system power supply module and the RFIC LDO module. The power coupling module is connected with the RFIC LDO module; the power coupling module is used for coupling transmitting power on a target channel and transmitting coupled electromagnetic waves to the RFIC LDO module; the RFIC LDO module is used for processing the electromagnetic wave into a direct current signal; the virtual current node is used for adjusting the power supply voltage output to the power amplifier by the system power supply module according to the difference between the transmitting power and the DC signal. According to the invention, the bias voltage of the power amplifier is compensated by adopting the coupling electromagnetic wave, so that the power extraction amount of the power amplifier from the system power supply module is reduced, the power consumption of the power amplifier during working is effectively reduced, and the standby and endurance time of the mobile terminal is prolonged.

Description

technical field [0001] The invention relates to the technical field of radio frequency circuits, in particular to a radio frequency power consumption reduction circuit and method based on power amplifier power supply optimization. Background technique [0002] With the advancement of science and technology and the development of mobile terminals, HPUE technology and MIMO technology have become hot topics in the current communication field and are increasingly favored by people. [0003] MIMO technology, that is, Multiple-Input Multiple-Output, multiple-input multiple-output technology, that is, multiple-antenna technology. It refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and the receiving end, respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and the receiving end, thereby improving communication quality. It can make full use of space resources, realize multi-tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04B7/0413
CPCH04W52/0209H04W52/0261H04B7/0413Y02D30/70
Inventor 赵鑫
Owner SHANGHAI CHUANGGONG COMM TECH
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