Radio frequency system based on millimeter wave communication, transmitting power adjustment method, and terminal

A radio frequency system and transmission power technology, applied in the field of communication to ensure signal quality, improve efficiency, and increase standby time.

Active Publication Date: 2018-09-28
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present application provide a radio frequency system based on millimeter wave communication, a transmission power adjustment method, and a terminal to solve the problem of improving the efficiency of the power amplifier as much as possible while ensuring the signal quality in the prior art. The problem of power consumption of terminal equipment

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  • Radio frequency system based on millimeter wave communication, transmitting power adjustment method, and terminal
  • Radio frequency system based on millimeter wave communication, transmitting power adjustment method, and terminal
  • Radio frequency system based on millimeter wave communication, transmitting power adjustment method, and terminal

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Embodiment 1

[0030] In the 5G network, the millimeter wave (Millimeter Wave) will become an important communication frequency band. The millimeter wave frequency band has a large amount of available spectrum resources, which can meet the growing business traffic demand of mobile communications. In addition, due to the short wavelength of the millimeter wave, according to the antenna theory, the antenna size of the millimeter wave system can also be small, so that multiple antennas can be placed in a small space, which is beneficial to the large-scale antenna array system (Massive MIMO ) applications in real systems. Although the mmWave system has the disadvantage of excessive channel path fading, the beamforming technology (Beam Forming) provided by the large-scale antenna can be used to make up for the disadvantage of excessive mmWave channel path fading. Communication makes it possible. Beamforming technology can improve the directivity of the antenna, resulting in more obvious array ga...

Embodiment 2

[0040] An embodiment of the present application provides another radio frequency system based on millimeter wave communication. The radio frequency system based on mmWave communication includes Figure 1 ~ Figure 2 All the functional units of the radio frequency system based on millimeter wave communication are shown, and on the basis of it, it has been improved, and the improvements are as follows:

[0041] Such as image 3 As shown, based on the characteristics of the power amplifying unit of the Doherty structure, the above-mentioned two-way power amplifier may include a main amplifier 103 and a peak amplifier 104, wherein the main amplifier 103 and the peak amplifier 104 are connected in parallel, and the saturation of the main amplifier 103 and the peak amplifier 104 The power ratio can be 1:2. In addition, the main amplifier 103 and the peak amplifier 104 can form a 2-way Doherty power amplifier (at this time, the first switch controller 1021 connected to the main ampl...

Embodiment 3

[0050] Such as Figure 7 As shown, the embodiment of the present application provides a transmission power adjustment method, the execution body of the method may be a mobile terminal, and the mobile terminal may include a radio frequency system based on millimeter wave communication, wherein the mobile terminal may be such as a mobile phone, a tablet computer etc., the mobile terminal may be a mobile terminal used by the user. The method can be applied to processing such as adjusting the transmission power of the radio frequency system in the mobile terminal. The method specifically may include the following steps:

[0051] In step S702, according to the downlink signal of the network side device, level information corresponding to the downlink signal is determined.

[0052] Wherein, the network side device 400 may be a device for communicating with a mobile terminal (such as a mobile phone or a tablet computer, etc.), and the network side device 400 may be a GSM (Global Sy...

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Abstract

The embodiment of the invention discloses a radio frequency system based on millimeter wave communication, a transmitting power adjustment method, and a terminal. The radio frequency system based on millimeter wave communication comprises a Doherty power amplifier unit, an antenna array unit and a micro control unit MCU, wherein an output end of the Doherty power amplifier unit is connected with an input end of the antenna array unit, a control end of the Doherty power amplifier unit and the control end of the antenna array unit are respectively connected with the MCU, and the MCU controls theradiation direction of antennas in the antenna array unit; the Doherty power amplifier unit is composed of two paths of power amplifiers, the two paths of power amplifiers have different saturation power, each path of power amplifiers is connected with a switch controller connected in series, and the MCU controls the opening and closing of the switch controller in the Doherty power amplifier unitto control the transmitting power of the Doherty power amplifier unit.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a radio frequency system based on millimeter wave communication, a transmission power adjustment method, and a terminal. Background technique [0002] At present, in 3G and 4G networks, in order to benefit the transmission efficiency of the radio frequency system of the terminal equipment and prolong the standby time of the terminal equipment, an uplink signal with a lower signal peak-to-average ratio (PAPR, Peak to Average Power Ratio) is usually selected. For this reason, a variety of technologies for generating uplink signals with lower signal peak-to-average ratios have been produced. For example, in 3G and 4G networks, uplink signals mostly use SC-FDMA (Single-carrier Frequency-Division Multiple Access). ) technology generation. [0003] However, in 5G or higher-end communication networks, in order to improve signal processing efficiency, the uplink (UL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04H04B1/3827H04B1/40H04W52/02
CPCH04B1/0458H04B1/3827H04B1/40H04B2001/0408H04W52/0209H03F1/0288H03F3/195H03F3/245H03F3/68H03F2200/451H04B1/0475H04B1/0483H04W52/028Y02D30/70H01Q1/24H01Q21/00H01Q23/00H04B2001/045H04W52/52
Inventor 王坤
Owner VIVO MOBILE COMM CO LTD
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