CN107689812A - Radio-frequency front-end module, mobile terminal and signal processing method - Google Patents
Radio-frequency front-end module, mobile terminal and signal processing method Download PDFInfo
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- CN107689812A CN107689812A CN201710772662.4A CN201710772662A CN107689812A CN 107689812 A CN107689812 A CN 107689812A CN 201710772662 A CN201710772662 A CN 201710772662A CN 107689812 A CN107689812 A CN 107689812A
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- signal
- low
- duplexer
- loss
- module
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1018—Means associated with receiver for limiting or suppressing noise or interference noise filters connected between the power supply and the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
The embodiment of the invention discloses a kind of radio-frequency front-end module, the module includes：Antenna, duplexer, low-loss signal processing module and signal transceiver, duplexer is connected with antenna and low-loss signal processing module, duplexer is by connecting preset global system for mobile communications frequency range passage, the signal that control antenna receives enters low-loss signal processing module, low-loss signal processing module is connected with signal transceiver, the signal of reception is filtered and input signal transceiver after amplifying.The embodiment of the invention also discloses a kind of mobile terminal and signal processing method, can improve signal sensitivity, improves speech quality.
Description
Technical field
At technical field of mobile terminals, more particularly to a kind of radio-frequency front-end module, mobile terminal and signal
Reason method.
Background technology
As mobile device functionality is stronger and stronger, the network frequency range of support is more and more, and RF front-end module is into moving
An indispensable part in dynamic equipment.For example, Mobile phone at least needs to support following standard network：2G(2-
GENERATION WIRELESS TELEPHONE TECHNOLOGY)、3G(3-GENERATION WIRELESS TELEPHONE
TECHNOLOGY), 4G (THE 4TH GENERATION MOBILE COMMUNICATION TECHNOLOGY) and WiFi
Network formats such as (WIRELESS FIDELITY), and each standard is required for the structure of radio-frequency front end of oneself.
In the prior art, radio-frequency front-end includes antenna, and the signal received from antenna enters current GSM (global mobile communications
System, Global System for Mobile Communication) frequency range passage, by members such as duplexers (DUPLEXER)
Device enters transceiver, and above-mentioned the defects of showing technology is that the loss of duplexer is big, the sensitvity constraint of the GSM frequency band signals, shadow
Ring speech quality.
The content of the invention
The embodiment of the present invention provides a kind of radio-frequency front-end module, mobile terminal and signal processing method, can solve GSM frequencies
The sensitvity constraint of segment signal, the problem of influenceing speech quality.
The radio-frequency front-end module that first aspect of the embodiment of the present invention provides, including：
Antenna, duplexer, low-loss signal processing module and signal transceiver；
The duplexer is connected with the antenna and the low-loss signal processing module, and the duplexer passes through
Preset global system for mobile communications frequency range passage is connected, the signal for controlling the antenna to receive enters at the low-loss signal
Manage module；
The low-loss signal processing module is connected with the signal transceiver, and the signal of the reception is filtered and put
The input signal transceiver after big.
The mobile terminal that second aspect of the embodiment of the present invention provides, including the radio frequency that first aspect of the embodiment of the present invention provides
Front end module.
A kind of signal processing method that the third aspect of the embodiment of the present invention provides, is carried using first aspect of the embodiment of the present invention
The radio-frequency front-end module process signal of confession, including：
Duplexer is controlled to connect preset global system for mobile communications frequency range passage, the signal that antenna is received passes
It is defeated by low-loss signal processing module；
The signal is filtered and enhanced processing by the low-loss signal processing module；
The filtered signal for involving enhanced processing is transferred to signal transceiver.
It was found from the embodiments of the present invention, radio-frequency front-end module, mobile terminal and signal transacting side provided by the invention
Method, the signal of preset GSM frequency ranges being handled by low-loss signal processing module, duplexer connects the preset GSM frequency ranges passage,
Control the signal received from antenna to be handled into the low-loss signal processing module, reduce the loss of the GSM frequency ranges, carry
The sensitivity of the GSM frequency band signals is risen, improves speech quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, without having to pay creative labor, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the radio-frequency front-end module that first embodiment of the invention provides；
Fig. 2 is the structural representation for the radio-frequency front-end module that second embodiment of the invention provides；
Fig. 3 is the structural representation for including the radio-frequency front-end module that duplexer leads to that second embodiment of the invention provides；
Fig. 4 is the schematic flow sheet for the signal processing method that third embodiment of the invention provides；
Fig. 5 is the schematic flow sheet for the signal processing method that fourth embodiment of the invention provides.
Embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiment in the present invention, people in the art
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Radio-frequency front-end module in embodiments of the invention can be applicable to in mobile terminal, and wherein mobile terminal can wrap
Include mobile phone, tablet personal computer, camera, wearable device etc..
Fig. 1 is referred to, Fig. 1 is the radio-frequency front-end modular structure schematic diagram that first embodiment of the invention provides, and be can be applied to
In mobile terminal, the radio-frequency front-end module includes：
Antenna 10, duplexer 20, low-loss signal processing module 30 and signal transceiver 40.
Wherein, duplexer 20 is connected with antenna 10, low-loss signal processing module 30 respectively.
The processor control duplexer 20 of mobile terminal switches different GSM frequency ranges and signal transmitting and receiving state.GSM frequency ranges can
Including：GSM 900, corresponding working frequency is 900MHz；GSM1800, corresponding working frequency is 1800MHz；GSM-1900, it is corresponding
Working frequency 1900MHz etc..
Duplexer 20 enters low damage by connecting preset GSM frequency range passages, the signal that control antenna 10 receives in Fig. 1
Consume signal processing module 30.The signal that antenna 10 receives i.e. Rx (Receive) signal.The preset GSM frequency range passages can
Think GSM900 passages, or GSM1800 passages, or other GSM frequency ranges passages.
Low-loss signal processing module 30 is connected with signal transceiver 40, and the signal of reception is filtered and inputted after amplifying
Signal transceiver 40.
In the embodiment of the present invention, the signal of preset GSM frequency ranges is handled by low-loss signal processing module, duplexer connects
Lead to the preset GSM frequency ranges passage, control the signal received from antenna to be handled into the low-loss signal processing module, drop
The loss of the low GSM frequency ranges, the sensitivity of the GSM frequency band signals is lifted, improve speech quality.
Referring specifically to Fig. 2, Fig. 2 is the radio-frequency front-end modular structure schematic diagram that second embodiment of the invention provides, and this is penetrated
Frequency front end module is with foregoing embodiment illustrated in fig. 1 difference：
Low-loss signal processing module 30 includes：Low-noise amplifier 301 and highly selective filter 302.
One end of high selectivity wave filter 302 is connected with duplexer 20, high selectivity wave filter 302 it is another
End is connected with one end of low-noise amplifier 301, and high selectivity wave filter 302 is used to enter the signal received from antenna 10
Row filtering process.The performance of highly selective filter 302 is good, can filter out unwanted signal, improves signal quality.
The other end of low-noise amplifier 301 is connected with signal transceiver 40, for highly selective filter 302 to be entered
Signal after row filtering process is amplified processing.Low-noise amplifier 301 reduces noise, can carried while amplified signal
High RST quality.
Also, the power consumption of low-noise amplifier 301 and highly selective filter 302 is smaller, power consumption sum is less than duplex
Device, the signal sensitivity of the GSM frequency ranges can be improved.
Further, highly selective filter 302 can be specifically surface acoustic wave (SAW, SURFACE ACOUSTIC
WAVE) wave filter, it can be bulk acoustic wave (BAW, BODY ACOUSTIC WAVE) wave filter, can also be membrane well acoustic resonance
(FBAR, FILM BULK ACOUSTIC RESONATOR) wave filter.SAW filter, BAW wave filters and FBAR wave filters are all
Low-loss device.
Low-noise amplifier 301 includes the low amplifier of all noises, such as LNA (LOW NOISE AMPLIFIER).
Further, low-loss signal processing module 30 is opened between signal transceiver 40 and duplexer 20 close to antenna
Close 20 to set, be relatively distant from signal transceiver 40, i.e., will between signal transceiver 40 and duplexer 20 in the circuit board
Low-noise amplifier 301 and highly selective filter 302 are put close to duplexer 20, reduce line loss.
The inventive concept of the embodiment of the present invention is to be based on, in each GSM frequency ranges of mobile terminal, to signal of communication sensitivity
Influence maximum is the noise coefficient (NF, Noise Figure) between antenna to LNA, the sensitivity of promotion signal will
Reduce total NF.Total NF is the intrinsic NF of LNA and other components LOSS summations, the LOSS of other components include aerial loss,
The loss of the loss of duplexer, duplexer or wave filter, and cabling loss.
That is, other components of total intrinsic NF+ of NF=LNA LOSS.
The LOSS of any one component therein is reduced, total NF can be reduced.
Further, as shown in figure 3, the radio-frequency front-end module also includes：Duplexer 50.
One end connection duplexer 20 of duplexer 50, other end connection signal transceiver 40.
The signal that duplexer 20 is received by the signal transmission passage where connecting duplexer 50, control antenna 10
Signal transceiver 40 is transferred into duplexer 50, and by duplexer 50, the signal transmission passage can be B8.
It should be noted that duplexer 20 can only connect signal transmission passage all the way in a time, therefore, connecting
While low-noise amplifier 301 and the signal transmission passage at the place of highly selective filter 302, the signal where duplexer 50
Transmission channel does not receive the signal from antenna 10, conversely, while the signal transmission passage where connecting duplexer 50, it is low
Signal transmission passage where noise amplifier 301 and highly selective filter 302 does not receive the signal from antenna 10.
In the embodiment of the present invention, duplexer connects the preset GSM frequency ranges passage, controls the signal received from antenna to enter
Enter high selectivity wave filter, highly selective filter filters to the signal of preset GSM frequency ranges, and is put by low-noise amplifier
Big filtered signal, highly selective filter and low-noise amplifier are the less device of loss, can reduce the GSM frequency ranges
Loss, lift the sensitivity of the GSM frequency band signals, improve speech quality, also, highly selective filter and low noise are put
Big device is set close to duplexer, can reduce line loss, is further lifted the sensitivity of the GSM frequency band signals and is improved call matter
Amount.
Fig. 4 is referred to, Fig. 4 is the schematic flow sheet for the signal processing method that third embodiment of the invention provides, and can be applied
Radio-frequency front-end module process signal in earlier figures 1, embodiment illustrated in fig. 2, this method include：
The concrete structure of the radio-frequency front-end module, referring to shown in Fig. 1, Fig. 2, it may include：It is antenna 10, duplexer 20, low
Signal processing module 30 and signal transceiver 40 is lost.Wherein low-loss processing module 30 includes：Low-noise amplifier 301 and height
Selective wave filter 302.Low-noise amplifier 301 and high selectivity wave filter 302, are opened in signal transceiver 40 and antenna
Set between closing 20 and close to duplexer 20.
S401, control duplexer connect preset GSM frequency range passages, and the signal that antenna is received is transferred to low damage
Consume signal processing module；
The processor control duplexer of mobile terminal connects preset GSM frequency range passages, the structure of duplexer and connects
Logical state is as shown in Figure 2.
The signal is filtered and enhanced processing by S402, the low-loss signal processing module；
The low-loss signal processing module is filtered the signal and enhanced processing, the low-loss signal processing module damage
Consume low, the sensitivity of the GSM frequency band signals is preferable.
S403, the filtered signal for involving enhanced processing is transferred to signal transceiver.
Details is not use up in the present embodiment, and referring to the description of 1~embodiment illustrated in fig. 2 of earlier figures, here is omitted.
In the embodiment of the present invention, control duplexer connects preset GSM frequency range passages, and the signal that antenna is received passes
Low-loss signal processing module is defeated by, after the signal is filtered and amplified by the low-loss signal processing module, transmission
To signal transceiver, the low-loss signal processing module can reduce the loss of the GSM frequency ranges, thus lift the GSM frequency band signals
Sensitivity, improve speech quality.
Fig. 5 is referred to, Fig. 5 is the schematic flow sheet for the signal processing method that fourth embodiment of the invention provides, and can be applied
Radio-frequency front-end module process signal in earlier figures 1, embodiment illustrated in fig. 2, the radio-frequency front-end mould applied in embodiment illustrated in fig. 5
Group and the difference of the radio-frequency front-end module of embodiment illustrated in fig. 4 application are that the low-loss signal processing module includes low
Noise amplifier and high selectivity wave filter.One end of high selectivity wave filter is connected with duplexer, high selectivity
The other end of wave filter is connected with one end of low-noise amplifier, and high selectivity wave filter is used to receive from antenna
Signal is filtered processing.The other end of low-noise amplifier is connected with signal transceiver, for by highly selective filter
It is filtered the signal after processing and is amplified processing.This method includes：
S501, control duplexer connect preset GSM frequency range passages, and the signal that antenna is received is transferred to Gao Xuan
Selecting property wave filter；
The processor control duplexer of mobile terminal connects preset GSM frequency range passages, the structure of duplexer and connects
Logical state is as shown in Figure 2.
S502, high selectivity wave filter enter low-noise amplifier after the signal is filtered into processing, and low noise is put
The signal that the high selectivity wave filter is filtered after processing is amplified processing by big device；
It should be noted that low-noise amplifier and high selectivity wave filter are set close to duplexer.
Wherein, highly selective filter can be specifically that SAW filter, bulk accoustic wave filter or membrane well sound are humorous
Polarization filter.
S503, the filtered signal for involving enhanced processing is transferred to signal transceiver.
Method in the embodiment of the present invention, techniques not described details is identical with earlier figures 1, Fig. 2, embodiment illustrated in fig. 3,
Here is omitted.
In the embodiment of the present invention, control duplexer connects preset GSM frequency range passages, and the signal that antenna is received passes
Low-loss signal processing module is defeated by, after the signal is filtered and amplified by the low-loss signal processing module, transmission
To signal transceiver, the low-loss signal processing module can reduce the loss of the GSM frequency ranges, thus lift the GSM frequency band signals
Sensitivity, improve speech quality.
The embodiment of the present invention additionally provides a kind of mobile terminal, and the mobile terminal includes the radio frequency shown in 1~Fig. 3 of earlier figures
Front end module, in addition to the hardware configuration such as processor, memory, input unit, output device.Wherein input unit includes key
Disk, mouse, voice recording module etc., output device include screen, loudspeaker.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
It is above the description to radio-frequency front-end module provided by the present invention, mobile terminal and signal processing method, for
Those skilled in the art, according to the thought of the embodiment of the present invention, change is had in specific embodiments and applications
Part, to sum up, this specification content should not be construed as limiting the invention.
Claims (10)
- A kind of 1. radio-frequency front-end module, it is characterised in that including：Antenna, duplexer, low-loss signal processing module and signal transceiver；The duplexer is connected with the antenna and the low-loss signal processing module, and the duplexer passes through connection Preset global system for mobile communications frequency range passage, the signal for controlling the antenna to receive enter the low-loss signal transacting mould Block；The low-loss signal processing module is connected with the signal transceiver, after the signal of the reception is filtered and amplified Input the signal transceiver.
- 2. module according to claim 1, it is characterised in that the low-loss signal processing module includes：Low-noise amplifier and high selectivity wave filter；One end of the high selectivity wave filter is connected with the duplexer, the other end and the low-noise amplifier One end is connected, for the signal of the reception to be filtered into processing；The other end of the low-noise amplifier is connected with the signal transceiver, for the highly selective filter to be entered Signal after row filtering process is amplified processing.
- 3. module according to claim 2, it is characterised in thatThe low-noise amplifier and the high selectivity wave filter, between the signal transceiver and the duplexer Set close to the duplexer.
- 4. module according to claim 3, it is characterised in that the highly selective filter includes：SAW filter, bulk accoustic wave filter or membrane well acoustic resonance wave filter.
- 5. module according to claim 4, it is characterised in that the module also includes：Duplexer；One end of the duplexer connects the duplexer, and the other end connects the signal transceiver；By the signal transmission passage where connecting the duplexer, the signal for controlling the antenna to receive enters the duplexer Enter the duplexer.
- 6. a kind of mobile terminal, it is characterised in that including the radio-frequency front-end module described in any one of the claims 1 to 5.
- A kind of 7. signal processing method, it is characterised in that radio-frequency front-end module of the application as described in any one of claim 1 to 5 Process signal, methods described include：Duplexer is controlled to connect preset global system for mobile communications frequency range passage, the signal that antenna is received is transferred to Low-loss signal processing module；The signal is filtered and enhanced processing by the low-loss signal processing module；The filtered signal for involving enhanced processing is transferred to signal transceiver.
- 8. according to the method for claim 7, it is characterised in that the low-loss signal processing module includes：Low noise is put Big device and highly selective filter；One end of the high selectivity wave filter is connected with the duplexer, the other end and the low-noise amplifier One end is connected, and the other end of the low-noise amplifier is connected with the signal transceiver；The signal is filtered and enhanced processing by the low-loss signal processing module, including：The signal is filtered processing by the high selectivity wave filter；The signal that the high selectivity wave filter is filtered after processing is amplified processing by the low-noise amplifier.
- 9. the method according to claim 7 or 8, it is characterised in thatThe low-noise amplifier and the high selectivity wave filter, between the signal transceiver and the duplexer Set close to the duplexer.
- 10. according to the method for claim 9, it is characterised in that the highly selective filter includes：SAW filter, bulk accoustic wave filter or membrane well acoustic resonance wave filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772662.4A CN107689812B (en) | 2017-08-31 | 2017-08-31 | Radio frequency front-end module, mobile terminal and signal processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772662.4A CN107689812B (en) | 2017-08-31 | 2017-08-31 | Radio frequency front-end module, mobile terminal and signal processing method |
Publications (2)
| Publication Number | Publication Date |
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| CN107689812A true CN107689812A (en) | 2018-02-13 |
| CN107689812B CN107689812B (en) | 2020-09-25 |
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| CN201710772662.4A Expired - Fee Related CN107689812B (en) | 2017-08-31 | 2017-08-31 | Radio frequency front-end module, mobile terminal and signal processing method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063409A (en) * | 2003-12-22 | 2005-06-28 | 자화전자 주식회사 | Quad band antenna switch module circuit |
| CN101064521A (en) * | 2006-04-26 | 2007-10-31 | 日立金属株式会社 | High-frequency circuit, high-frequency device and communications apparatus |
| CN102404882A (en) * | 2011-11-04 | 2012-04-04 | 中兴通讯股份有限公司 | Multi-mode radio frequency receiving and processing chip and multi-mode terminal |
| CN102510270A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Duplexer, radio-frequency front module, multi-mode terminal and filtering method of duplexer |
| CN202309698U (en) * | 2011-11-04 | 2012-07-04 | 中兴通讯股份有限公司 | Filtering device, antenna switch module and dual-mode terminal |
| CN105871392A (en) * | 2015-10-26 | 2016-08-17 | 乐视移动智能信息技术（北京）有限公司 | Receiver and communication terminal |
| CN105897284A (en) * | 2015-10-26 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Receiver and communication terminal |
-
2017
- 2017-08-31 CN CN201710772662.4A patent/CN107689812B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063409A (en) * | 2003-12-22 | 2005-06-28 | 자화전자 주식회사 | Quad band antenna switch module circuit |
| CN101064521A (en) * | 2006-04-26 | 2007-10-31 | 日立金属株式会社 | High-frequency circuit, high-frequency device and communications apparatus |
| CN102404882A (en) * | 2011-11-04 | 2012-04-04 | 中兴通讯股份有限公司 | Multi-mode radio frequency receiving and processing chip and multi-mode terminal |
| CN102510270A (en) * | 2011-11-04 | 2012-06-20 | 中兴通讯股份有限公司 | Duplexer, radio-frequency front module, multi-mode terminal and filtering method of duplexer |
| CN202309698U (en) * | 2011-11-04 | 2012-07-04 | 中兴通讯股份有限公司 | Filtering device, antenna switch module and dual-mode terminal |
| CN105871392A (en) * | 2015-10-26 | 2016-08-17 | 乐视移动智能信息技术（北京）有限公司 | Receiver and communication terminal |
| CN105897284A (en) * | 2015-10-26 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Receiver and communication terminal |
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