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Radio frequency circuit, radio frequency circuit configuration method and device

A radio frequency circuit and radio frequency chip technology, which is applied in the field of communication, can solve the problems of large insertion loss of combiners and affect the reception of high frequency signals, and achieve the effect of reducing insertion loss

Active Publication Date: 2021-11-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a radio frequency circuit, a radio frequency circuit configuration method and device, to at least solve the problems in the related art that each mode signal in the existing LTE radio frequency circuit shares one antenna through the combiner, and the insertion loss of the combiner is too large. Causes problems affecting high-frequency signal reception

Method used

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  • Radio frequency circuit, radio frequency circuit configuration method and device
  • Radio frequency circuit, radio frequency circuit configuration method and device
  • Radio frequency circuit, radio frequency circuit configuration method and device

Examples

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Embodiment 1

[0044] Radio frequency circuit is provided for operating a mobile terminal in the present embodiment, figure 2 It is a schematic structural diagram of a radio frequency circuit of the embodiment of the present invention, such as figure 2 As shown, the radio frequency circuit comprises:

[0045] Antenna 22, antenna switch group 24, multiplexer 26 and the RF chip 28; wherein an output port of the RF chip 28 are respectively input of the first group of antenna switch 24 connected to the antenna switch, and a second switch group 24 and the antenna an input terminal connected to the second antenna switch; a first antenna switch, a signal for classifying non-polymeric carrier, to obtain various types of signal frequencies; input of multiplexer 26 to the output terminal of the first switch is connected to the antenna, combiner an output terminal 26 and the second antenna switch is connected, a signal for performing combination of various types of frequency; second antenna switch input te...

Embodiment 2

[0076] Configuration provides a method for operating the RF circuit to the RF circuit in the present embodiment, Image 6 Is a flowchart of a method for configuring a radio frequency circuit of the present embodiment of the invention, as Image 6 As shown, the process includes the following steps:

[0077] Step S602, in case of receiving a radio frequency signal through an antenna, a radio frequency signal includes determining a predetermined frequency band signal;

[0078] Step S604, the determination result is YES in the case where isolated by a radio frequency signal from the second antenna switch in a predetermined frequency band signal;

[0079] Step S606, the preset frequency band signal is returned to the RF chip, wherein the second antenna switch returns other signals to a predetermined frequency band signal separated by the first RF chip antenna switch.

[0080] RF circuit configuration method according to an embodiment of the present application, since in case of receiving...

Embodiment 3

[0093] In the present embodiment, the configuration is also provided an apparatus for the RF circuit, the means for achieving the above examples and preferred embodiment has been described will not be repeated. As used herein, the term "module" can achieve a combination of software and / or hardware of a predetermined function. Although the apparatus described in the following examples is preferably implemented in software, the implementation of hardware, or combinations of software and hardware may also be conceived.

[0094] Figure 7 It is a block diagram configuration of the radio apparatus circuit of the embodiment of the present invention, such as Figure 7 , The apparatus comprising: a determining module 72, a signal separation module 74 and a signal receiving module 76, wherein,

[0095] Determining module 72, configured to, when receiving RF signals through an antenna, a radio frequency signal includes determining a predetermined frequency band signal; signal separation mo...

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Abstract

The present invention provides a radio frequency circuit and a radio frequency circuit configuration method and device. Through the present invention, when a radio frequency signal is received through an antenna, it is judged whether the radio frequency signal contains a preset frequency band signal; if the judgment result is yes, Separate the preset frequency band signal from the radio frequency signal through the second antenna switch; return the preset frequency band signal to the radio frequency chip, wherein, return to the radio frequency chip through the first antenna switch other signals after the second antenna switch separates the preset frequency band signal , to solve the problem that each mode signal in the existing LTE radio frequency circuit shares an antenna through the combiner, and the problem that the high-frequency signal reception is affected due to the too large insertion loss of the combiner, thereby achieving the effect of reducing the insertion loss of the receiving path.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular, to a radio frequency circuit, a configuration method and apparatus of a radio frequency circuit. Background technique [0002] The current mobile phone has entered the fourth-generation mobile communication (4G) era, Long Termevolution, referred to as LTE) has become standard, and the current domestic LTE is divided into two systems. The long-term evolved time division, referred to as TDD LTE and long-term evolution Duplexing, referred to as FDD LTE). [0003] The frequency band allocated by these two types of TDD LTE is mainly relatively high frequency band. The high frequency signal is large on the RF pathway. In 4G + technology evolution, carrier aggregation puts higher requirements for high frequency radio frequency indicators, especially Metal shell mobile phone, the main antenna is structural restrictions generally no way to separate high-frequency and medium and low freq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/00H04W88/06
CPCH04B1/006H04B1/0064H04B1/401H04W88/06
Inventor 罗迤宝王立李林
Owner ZTE CORP
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