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a terminal

A terminal and delay value technology, applied in the field of communication, can solve problems such as adjacent channel leakage and terminal performance not being optimal

Active Publication Date: 2019-04-12
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The delay value set by technicians based on their own experience is not necessarily the delay value corresponding to the optimal performance of the terminal, that is, when the terminal works based on the delay value, the performance of the terminal may not be optimal. As a result, the adjacent channel leakage of the terminal is relatively high

Method used

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Embodiment Construction

[0038] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples consistent with aspects of the disclosure as recited in the appended claims.

[0039] The embodiment of the present disclosure provides a terminal, such as figure 1 As shown, the terminal includes a radio frequency power amplifier 1, a directional coupler 2, and a delay value control component 3, wherein: the input port of the directional coupler 2 is electrically connected to the output port of the radio frequency power amplifier 1, and the coupling of the directional coupler 2 The output port i...

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Abstract

The invention discloses a terminal, and belongs to the technical field of communication. The terminal comprises a radio-frequency power amplifier, a directional coupler and a delay value control component. The input end port of the directional coupler and the output end port of the radio-frequency power amplifier are electrically connected. The coupling output end port of the directional coupler and the input end port of the delay value control component are electrically connected. The output end port of the delay value control component and the power supply end port are electrically connected. The directional coupler is used for coupling the output signals of the radio-frequency power amplifier to obtain coupling signals. The delay value control component is used for determining the adjacent channel leakage power ratio of the terminal based on the coupling signals in the condition of setting the delay value to different preset values to obtain the adjacent channel leakage power ratio corresponding to each preset value; determining the lowest target preset value of the corresponding adjacent channel leakage power ratio, setting the delay value of the delay value control component to the target preset value. The terminal can make the adjacent channel leakage power ratio of the terminal in a low level.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular to a terminal. Background technique [0002] In the communication system, mobile phones and other terminals will have corresponding working frequency (for example, fc), where the working frequency can be the frequency corresponding to the working channel when the mobile phone and the base station transmit data. However, the radio frequency transmission system in the mobile phone and other terminals is working In the process, an unwanted signal whose frequency is the frequency of the adjacent channel (when the channel bandwidth is 5 MHz, the frequency of the adjacent channel is fc+5) will often be generated, and the unwanted signal will be the terminal of the adjacent channel to the working channel. This phenomenon can be called adjacent channel leakage, and the interference degree of the terminal to other terminals can be measured by the adjacent channel leakage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04B1/52
CPCH04B1/1027H04B1/525H04B2001/1045
Inventor 底浩
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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