CN105099478B - Improve the device and method of radio frequency link receiving sensitivity - Google Patents
Improve the device and method of radio frequency link receiving sensitivity Download PDFInfo
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- CN105099478B CN105099478B CN201510520477.7A CN201510520477A CN105099478B CN 105099478 B CN105099478 B CN 105099478B CN 201510520477 A CN201510520477 A CN 201510520477A CN 105099478 B CN105099478 B CN 105099478B
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Abstract
The disclosure discloses a kind of device and method improving radio frequency link receiving sensitivity, belongs to the communications field.The device includes signal receiving module, signal amplification module and signal processing module, wireless communication signals, which are received, by signal processing module is sent to signal amplification module, signal amplification module is amplified the wireless communication signals received, obtain the first signal, and the first signal is sent to signal processing module, signal processing module demodulates the first signal received, obtains second signal；Solve it is related open in, the problem of radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference enters receiver by antenna, but the small-signal often cannot be decoded normally；The intensity for having reached the signal that enhancing receiver receives, enables the signal received normally to demodulate and decode, obtains the effect of the demodulated signal of low error rate.
Description
Technical field
This disclosure relates to the communications field, more particularly to a kind of device and method improving radio frequency link receiving sensitivity.
Background technology
Have become trend using metal shell on mobile terminals.Currently, many mobile terminals are all in accordance with complete machine metal
Change to design.
When mobile terminal uses full metal jacket, wireless signal can be received to mobile terminal and form interference.In other words,
Radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference enters the collection of letters by antenna
Machine.But the small-signal often cannot be decoded normally.
Invention content
The disclosure provides a kind of device and method improving radio frequency link receiving sensitivity.Technical solution is as follows：
According to the first aspect of the embodiments of the present disclosure, a kind of device improving radio frequency link receiving sensitivity, the dress are provided
Set including：Signal receiving module, signal amplification module and the signal processing module being sequentially connected；
Signal receiving module receives wireless communication signals and is sent to signal amplification module；
Signal amplification module is amplified the wireless communication signals received, obtains the first signal, and by the first signal
It is sent to signal processing module；
Signal processing module demodulates the first signal received, obtains second signal.
As an alternative embodiment, signal amplification module, including：One low-noise amplifier, low noise amplification
The input terminal of device is connected with signal receiving module, and the output end of low-noise amplifier is connected with signal processing module.
As an alternative embodiment, signal amplification module, including：Selecting switch and at least two low noise amplifications
The common end of device, selecting switch is connected with signal receiving module, the input terminal of each low-noise amplifier and the one of selecting switch
A selection end is connected, and the output end of each low-noise amplifier is connected with signal processing module input terminal.
As an alternative embodiment, between the corresponding working frequency range of at least two low-noise amplifiers mutually not
Overlapping.
As an alternative embodiment, signal receiving module is antenna；
Signal processing module is receiver.
According to the second aspect of the embodiment of the present disclosure, a kind of method improving radio frequency link receiving sensitivity, application are provided
The device of any raising radio frequency link receiving sensitivity in the first aspect and its optional embodiment of the embodiment of the present disclosure,
The device includes that the signal receiving module being sequentially connected, signal amplification module and signal processing module, this method include：
Wireless communication signals are received by signal receiving module；
The wireless communication signals that signal receiving module receives are sent to signal amplification module；
Wireless communication signals are amplified by signal amplification module, obtain the first signal；
The first signal that signal amplification module obtains is sent to signal processing module；
The first signal received is demodulated by signal processing module, obtains second signal.
As an alternative embodiment, signal amplification module includes a low-noise amplifier；
Wireless communication signals are amplified by signal amplification module, obtain the first signal, including：
Wireless communication signals are amplified by low-noise amplifier, obtain the first signal.
As an alternative embodiment, signal amplification module includes selecting switch and at least two low noise amplifications
Device；
Wireless communication signals are amplified by signal amplification module, obtain the first signal, including：
Signal receiving module and i-th of low-noise amplifier are attached by control selections switch；
Judge whether to be successfully accessed mobile communications network；
Can not accessing mobile communication network when, enable i=i+1, re-execute control selections switch by signal receiving module
The step of being attached with i-th of low-noise amplifier；
When being successfully accessed mobile communications network, wireless communication signals are amplified by i-th of low-noise amplifier,
Obtain the first signal.
As an alternative embodiment, control selections are switched signal receiving module and i-th of low-noise amplifier
It is attached, including：
According to putting in order for preset low-noise amplifier, control selections switch is low by signal receiving module and i-th
Noise amplifier is attached.
As an alternative embodiment, wireless communication signals are received by signal receiving module, including：
Wireless communication signals are received by antenna.
As an alternative embodiment, being demodulated by the first signal of signal processing module pair, the second letter is obtained
Number, including：
It is demodulated by the first signal of receiver pair, obtains second signal.
The technical scheme provided by this disclosed embodiment can include the following benefits：
By including signal receiving module, signal amplification module and signal processing module, signal receiving module receives wireless
Signal of communication is sent to signal amplification module, and signal amplification module is amplified wireless communication signals, obtains the first signal, and
First signal is sent to signal processing module, the first signal of signal processing module pair demodulates, and obtains second signal；It solves
In related disclosure, radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference is logical
It crosses antenna and enters receiver, but the problem of the small-signal often cannot be decoded normally；Reach what enhancing receiver received
The intensity of signal enables the signal received normally to demodulate and decode, and obtains the effect of the demodulated signal of low error rate.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
It is open.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is a kind of structural frames of the device of raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure；
Fig. 2 is a kind of structure of the device of the raising radio frequency link receiving sensitivity shown according to another exemplary embodiment
Block diagram；
Fig. 3 is a kind of structure of the device of the raising radio frequency link receiving sensitivity shown according to a further exemplary embodiment
Block diagram；
Fig. 4 is a kind of flow of the method for raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure；
Fig. 5 is a kind of flow of the method for the raising radio frequency link receiving sensitivity shown according to another exemplary embodiment
Figure；
Fig. 6 is a kind of flow of the method for the raising radio frequency link receiving sensitivity shown according to a further exemplary embodiment
Figure.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of structural frames of the device of raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure, the device can be mobile phones, computer, digital broadcast terminal, messaging devices, tablet device, and individual digital helps
The electronic equipment with transmission-receiving function such as reason.As shown in Figure 1, the device includes but not limited to：
Signal receiving module 102, signal amplification module 104 and the signal processing module 106 being sequentially connected.
Signal receiving module 102 receives wireless communication signals and is sent to signal amplification module 104.
Signal amplification module 104 is amplified wireless communication signals, obtains the first signal, and the first signal is sent to
Signal processing module 106.
Signal processing module 106 demodulates the first signal received, obtains second signal.
In conclusion the device of the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, including signal connect
Module, signal amplification module and signal processing module are received, receiving wireless communication signals by signal receiving module is sent to signal
Amplification module, signal amplification module are amplified wireless communication signals, obtain the first signal, and the first signal is sent to letter
Number processing module, signal processing module demodulate the first signal received, obtain second signal；It solves related open
In, radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference is entered by antenna
Receiver, but the problem of the small-signal often cannot be decoded normally；Reach the intensity for the signal that enhancing receiver receives,
So that the signal received is normally demodulated and decoded, obtains the effect of the demodulated signal of low error rate.
Fig. 2 is a kind of structure of the device of the raising radio frequency link receiving sensitivity shown according to another exemplary embodiment
Block diagram, the device can be mobile phone, computer, digital broadcast terminal, messaging devices, tablet device, individual digital
Assistants etc. have the electronic equipment of transmission-receiving function.As shown in Fig. 2, the device includes but not limited to：
Signal receiving module 202, signal amplification module 204 and the signal processing module 206 being sequentially connected；
Signal receiving module 202 receives wireless communication signals and is sent to signal amplification module 204.
Signal amplification module 204 is amplified wireless communication signals, obtains the first signal, and the first signal is sent to
Signal processing module 206.
Signal processing module 206 demodulates the first signal received, obtains second signal.
Signal receiving module 202 includes antenna ANT, and signal receiving module 202 receives signal of communication by antenna ANT.
Optionally, signal amplification module 204, including a low-noise amplifier LAN, the input of low-noise amplifier LAN
End is connected with the antenna ANT of signal receiving module 202, output end and 206 phase of signal processing module of low-noise amplifier LAN
Even.
Low-noise amplifier LAN is wideband low noise amplifier, i.e., the upper limit operation frequency of low-noise amplifier LAN is under
The band limits limited between working frequency is wider.Low-noise amplifier LAN can be to the wireless communication signals of wider frequency segment limit
It is amplified, obtains the first signal.
Optionally, signal processing module 206 includes receiver RVR.The output of receiver RVR and low-noise amplifier LAN
End is connected, and can be demodulated to the first signal, obtain second signal.
Optionally, receiver RVR is that have the transceiver for receiving signal capabilities and sending signal capabilities simultaneously.This implementation
Only it is that only there is the receiver of reception signal capabilities to illustrate with receiver RVR in example.
In conclusion the device of the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, including signal connect
Module, signal amplification module and signal processing module are received, receiving wireless communication signals by signal receiving module is sent to signal
Amplification module, signal amplification module are amplified wireless communication signals, obtain the first signal, and the first signal is sent to letter
Number processing module, signal processing module demodulate the first signal received, obtain second signal；It solves related open
In, radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference is entered by antenna
Receiver, but the problem of the small-signal often cannot be decoded normally；Reach the intensity for the signal that enhancing receiver receives,
So that the signal received is normally demodulated and decoded, obtains the effect of the demodulated signal of low error rate.
Further, since low-noise amplifier corresponds to a fixed working frequency range, low-noise amplifier can only be to place
It is amplified, the noise signal other than working frequency range range cannot be amplified in the signal of working frequency range, so as to
To the noise signal outside the working frequency range range in low-noise amplifier while enough signal strengths for receiving signal in enhancing
It is filtered, has reached the technique effect for improving the signal-to-noise ratio for receiving signal.
Fig. 3 is a kind of structure of the device of the raising radio frequency link receiving sensitivity shown according to a further exemplary embodiment
Block diagram, the device can be mobile phone, computer, digital broadcast terminal, messaging devices, tablet device, individual digital
Assistants etc. have the electronic equipment of transmission-receiving function.As shown in figure 3, the device includes but not limited to：
Signal receiving module 302, signal amplification module 304 and the signal processing module 306 being sequentially connected.
Signal receiving module 302 receives wireless communication signals and is sent to signal amplification module 304.
Signal amplification module 304 is amplified the wireless communication signals received, obtains the first signal, and by described
One signal is sent to the signal processing module 306.
Signal processing module 306 demodulates the first signal received, obtains second signal.
Signal receiving module 302 includes antenna ANT, and signal receiving module 302 receives signal of communication by antenna ANT.
Signal amplification module 304, including selecting switch K and at least two low-noise amplifiers, with low noise amplification in figure
The number of device is illustrated for four.Four low-noise amplifiers are respectively LAN1, LAN2, LAN3 and LAN4.
The common end of selecting switch K is connected with the antenna ANT of signal receiving module 302, each low-noise amplifier it is defeated
Enter end with a selection end of selecting switch to be connected, the output end of each low-noise amplifier and the one of signal processing module 306
A input terminal is connected.As shown, signal processing module 306 includes four input terminals P1, P2, P3 and P4, low-noise amplifier
The output end of LAN1 is connected with the input terminal P1 of signal processing module 306, at the output end and signal of low-noise amplifier LAN2
The input terminal P2 for managing module 306 is connected ... ..., and the rest may be inferred.
Optionally, each low-noise amplifier LAN1, LAN2, LAN3 and LAN4 correspond to a working frequency range, each low noise
Working frequency range non-overlapping copies between acoustic amplifier.Between low-noise amplifier LAN1, LAN2, LAN3 and LAN4 and working frequency range
Relationship be exemplified below：
| Low-noise amplifier | Working frequency range |
| LAN1 | 890-896MHz |
| LAN2 | 897-903MHz |
| LAN3 | 904-909MHz |
| LAN4 | 910-915MHz |
Table one
Optionally, the working frequency range between each low-noise amplifier LAN1, LAN2, LAN3 and LAN4 can also be weighed partly
Folded or all overlappings.
Optionally, receiver RVR is that have the transceiver for receiving signal capabilities and sending signal capabilities simultaneously.This implementation
Only it is that only there is the receiver of reception signal capabilities to illustrate with receiver RVR in example.
Each low-noise amplifier can be amplified the wireless communication signals in respective working frequency range range, obtain
Enhance signal.
Signal processing module 306 includes receiver RVR.Receiver RVR is connected with the output end of signal amplification module 304,
First signal can be demodulated, obtain second signal.
In conclusion the device of the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, including signal connect
Module, signal amplification module and signal processing module are received, receiving wireless communication signals by signal receiving module is sent to signal
Amplification module, signal amplification module are amplified wireless communication signals, obtain the first signal, and the first signal is sent to letter
Number processing module, signal processing module demodulate the first signal received, obtain second signal；It solves related open
In, radio-frequency module includes antenna and the receiver that is connected with the antenna, and the small-signal after interference is entered by antenna
Receiver, but the problem of the small-signal often cannot be decoded normally；Reach the intensity for the signal that enhancing receiver receives,
So that the signal received is normally demodulated and decoded, obtains the effect of the demodulated signal of low error rate.
Further, since the present apparatus includes multiple low-noise amplifiers, each low-noise amplifier corresponds to one admittedly
The amplification effect of fixed relatively narrow working frequency range, amplifier can be improved, and reception letter is further enhanced to reach
Number signal strength, filter amplifier operation band limits outside noise signal technique effect.
Fig. 4 is a kind of flow of the method for raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure, as shown in figure 4, the method for the raising radio frequency link receiving sensitivity, which is applied to raising radio frequency link shown in FIG. 1, receives spirit
In the device of sensitivity, which includes the signal receiving module 102, signal amplification module 104 and signal processing mould being sequentially connected
Block 106, this approach includes the following steps.
In step 401, wireless communication signals are received by signal receiving module.
In step 402, the wireless communication signals that signal receiving module receives are sent to signal amplification module.
In step 403, wireless communication signals are amplified by signal amplification module, obtain the first signal.
Signal amplification module generally includes low-noise amplifier.
In step 404, the first signal that signal amplification module obtains is sent to signal processing module.
In step 405, the first signal received is demodulated by signal processing module, obtains second signal.
Since the signal of communication that signal amplification module receives signal receiving module is amplified, signal processing module
The signal strength of the signal received is enhanced, and signal-to-noise ratio is also improved.Decode the error code of obtained second signal
Rate is low.
In conclusion the method for the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, by receiving nothing
Line signal of communication, is amplified wireless communication signals, obtains the first signal, demodulates, obtains to the first signal received
To second signal；Solve it is related open in, radio-frequency module includes antenna and the receiver that is connected with the antenna, by interfering
The problem of small-signal afterwards enters receiver by antenna, but the small-signal often cannot be decoded normally；Enhancing is reached
The intensity for the signal that receiver receives enables the signal received normally to demodulate and decode, and obtains the demodulation of low error rate
The effect of signal.
Fig. 5 is a kind of flow of the method for raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure, as shown in figure 5, the method for the raising radio frequency link receiving sensitivity, which is applied to raising radio frequency link shown in Fig. 2, receives spirit
In the device of sensitivity, which includes the signal receiving module 202, signal amplification module 204 and signal processing mould being sequentially connected
Block 206, this approach includes the following steps.
In step 501, wireless communication signals are received by antenna.
Optionally, antenna usually has the function of receiving signal and emits signal, in the present embodiment, only has with antenna and connects
The function of the collection of letters number is illustrated.
In step 502, the wireless communication signals that antenna receives are sent to signal amplification module.
Since antenna is connected with signal amplification module, antenna received signal directly passes through the input terminal of signal amplification module
Entering signal amplification module, the signal amplification module in the present embodiment are that a low-noise amplifier is illustrated.
In step 503, wireless communication signals are amplified by low-noise amplifier, obtain the first signal.
In the present embodiment, low-noise amplifier is wideband low noise amplifier, i.e. the upper limit operation of low-noise amplifier
Band limits between frequency and lower limit working frequency is wider.Low-noise amplifier can be to the wireless communication of wider frequency segment limit
Signal is amplified, and obtains the first signal.
In step 504, the first signal that signal amplification module obtains is sent to signal processing module.
Since the output end of signal amplification module is directly connected with the input terminal of signal processing module, the first signal passes through letter
The input terminal arriving signal processing module of number amplification module.
In step 505, it is demodulated by the first signal of receiver pair, obtains second signal.
Optionally, receiver is that have the transceiver for receiving signal capabilities and sending signal capabilities simultaneously.The present embodiment
In, only it is that only there is the receiver of reception signal capabilities to illustrate with receiver.
Since the signal of communication that low-noise amplifier receives antenna is amplified, and to other than its working frequency range
Noise signal is filtered, therefore the signal strength of signal that receiver obtains is enhanced, and signal-to-noise ratio is also improved.
The bit error rate for decoding obtained demodulated signal is low.
In conclusion the method for the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, by receiving nothing
Line signal of communication, is amplified wireless communication signals, obtains the first signal, demodulates, obtains to the first signal received
To second signal；Solve it is related open in, radio-frequency module includes antenna and the receiver that is connected with the antenna, by interfering
The problem of small-signal afterwards enters receiver by antenna, but the small-signal often cannot be decoded normally；Enhancing is reached
The intensity for the signal that receiver receives enables the signal received normally to demodulate and decode, and obtains the demodulation of low error rate
The effect of signal.
Further, since low-noise amplifier corresponds to a fixed working frequency range, low-noise amplifier can only be to place
It is amplified, the noise signal other than working frequency range range cannot be amplified in the signal of working frequency range, so as to
To the noise signal outside the working frequency range range in low-noise amplifier while enough signal strengths for receiving signal in enhancing
It is filtered, has reached the technique effect for improving the signal-to-noise ratio for receiving signal.
Fig. 6 is a kind of flow of the method for raising radio frequency link receiving sensitivity shown according to an exemplary embodiment
Figure, as shown in fig. 6, the method for the raising radio frequency link receiving sensitivity, which is applied to raising radio frequency link shown in Fig. 3, receives spirit
In the device of sensitivity, which includes the signal receiving module 302, signal amplification module 304 and signal processing mould being sequentially connected
Block 306, this approach includes the following steps.
In step 601, wireless communication signals are received by antenna.
Optionally, antenna usually has the function of receiving signal and emits signal, in the present embodiment, only has with antenna and connects
The function of the collection of letters number is illustrated.
In step 602, the wireless communication signals that signal receiving module receives are sent to signal amplification module.
Signal amplification module includes selecting switch and at least two low-noise amplifiers, with low noise amplification in the present embodiment
The number of device is illustrated for four.Four low-noise amplifiers are respectively LAN1, LAN2, LAN3 and LAN4.
In step 603A, signal receiving module and i-th of low-noise amplifier are attached by control selections switch.
It being illustrated for 1 with i, antenna and the 1st low-noise amplifier LAN1 are attached by selecting switch, if
The frequency of antenna received signal is in the working frequency range of low-noise amplifier LAN1 at this time, then signal can be put by low noise
Big device LAN1 is amplified and enters receiver by the input terminal P1 of corresponding frequency band；If the frequency of antenna received signal is not
In the frequency range, then signal cannot enter low-noise amplifier LAN1.
Optionally, putting in order according to preset low-noise amplifier, control selections switch by signal receiving module and
I-th of low-noise amplifier is attached.
Putting in order for low-noise amplifier can be mobile communication protocol according to corresponding to respective working frequency range
Version is by newly to the sequence after old arranged.
The version of wherein mobile communication protocol includes but not limited to 2G (second generation, Generation Mobile Telecommunication System
Agreement), 3G (third generation, 3G (Third Generation) Moblie agreement) and 4G (forth generation, forth generation movement
Communication protocol).Low-noise amplifier put in order for according to the version of the mobile communication protocol corresponding to its working frequency range by
The sequence after old arranged newly is arrived, as the working frequency of the 1st low-noise amplifier LAN1 corresponds to GSM900MHz institutes inside 4G
The working frequency of the frequency range, the 2nd low-noise amplifier LAN2 that use corresponds to frequency range used in GSM1800MHz inside 4G, the
The working frequency of 3 low-noise amplifier LAN3 corresponds to the work of frequency range used in 3G and the 4th low-noise amplifier LAN4
Frequency corresponds to frequency range used in 2G.
In step 603B, judge whether to be successfully accessed mobile communications network.
Whether the mobile terminal where improving the device of radio frequency link receiving sensitivity is successfully accessed movement to mobile terminal
Network is judged.The method of judgement can whether detect signal or other according to the output end of low-noise amplifier
Mode.
In step 603C, can not accessing mobile communication network when, enable i=i+1, re-execute sub-step 603A.
That is, if the frequency for the signal of communication that antenna receives not in the working frequency range of low-noise amplifier LAN1, detects
To mobile terminal can not accessing mobile communication network, then control selections switch by antenna and the 2nd low-noise amplifier LAN2 into
Row connection.
When being successfully accessed mobile communications network, step 604 is executed.
In step 604, the first signal that signal amplification module obtains is sent to signal processing module.
In step 605, the first signal received is demodulated by receiver, obtains second signal.
Since the signal of communication that low-noise amplifier receives antenna is amplified, and to other than its working frequency range
Noise signal is filtered, therefore the signal strength of signal that receiver obtains is enhanced, and signal-to-noise ratio is also improved.
The bit error rate for decoding obtained demodulated signal is low.
In conclusion the method for the raising radio frequency link receiving sensitivity provided in the embodiment of the present disclosure, by receiving nothing
Line signal of communication, is amplified wireless communication signals, obtains the first signal, demodulates, obtains to the first signal received
To second signal；Solve it is related open in, radio-frequency module includes antenna and the receiver that is connected with the antenna, by interfering
The problem of small-signal afterwards enters receiver by antenna, but the small-signal often cannot be decoded normally；Enhancing is reached
The intensity for the signal that receiver receives enables the signal received normally to demodulate and decode, and obtains the demodulation of low error rate
The effect of signal.
Further, since the present apparatus includes multiple low-noise amplifiers, each low-noise amplifier corresponds to one admittedly
The amplification effect of fixed relatively narrow working frequency range, amplifier can be improved, and reception letter is further enhanced to reach
Number signal strength, filter amplifier operation band limits outside noise signal technique effect.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (7)
1. a kind of device improving radio frequency link receiving sensitivity, which is characterized in that described device includes：The signal being sequentially connected
Receiving module, signal amplification module and signal processing module；
The signal receiving module receives wireless communication signals and is sent to the signal amplification module；
The signal amplification module is amplified the wireless communication signals received, obtains the first signal, and will be described
First signal is sent to the signal processing module；
The signal processing module demodulates first signal received, obtains second signal；
The signal amplification module includes：Selecting switch and at least two low-noise amplifiers, the common end of the selecting switch
It is connected with the signal receiving module, the input terminal of each low-noise amplifier and a selection end of the selecting switch
It is connected, each output end of the low-noise amplifier is connected with an input terminal of the signal processing module；
The selecting switch be controlled to according to preset low-noise amplifier put in order the signal receiving module and
I-th of low-noise amplifier is attached, wherein putting in order for the preset low-noise amplifier is put according to low noise
The version of mobile communication protocol corresponding to the big respective working frequency range of device is by newly to the sequence after old arranged, in reception
The frequency of signal of communication not in the working frequency range of i-th of low-noise amplifier and can not accessing mobile communication network when, enable i=
I+1, the selecting switch, which is also utilised by, connects the signal receiving module and i-th of low-noise amplifier to re-execute
The step of connecing；When being successfully accessed the mobile communications network, i-th of low-noise amplifier is to the wireless communication signals
It is amplified, obtains first signal.
2. the apparatus according to claim 1, which is characterized in that the corresponding work of at least two low-noise amplifiers
Make non-overlapping copies between frequency range.
3. device according to claim 1 or 2, which is characterized in that
The signal receiving module is antenna；
The signal processing module is receiver.
4. a kind of method improving radio frequency link receiving sensitivity, which is characterized in that it is any described to be applied to claims 1 to 3
Device, described device includes the signal receiving module being sequentially connected, signal amplification module and signal processing module, the method
Including：
Wireless communication signals are received by the signal receiving module；
The wireless communication signals that the signal receiving module receives are sent to the signal amplification module；
The wireless communication signals are amplified by the signal amplification module, obtain the first signal；
First signal that the signal amplification module obtains is sent to the signal processing module；
First signal received is demodulated by the signal processing module, obtains second signal；
The signal amplification module includes selecting switch and at least two low-noise amplifiers；
It is described that the wireless communication signals are amplified by the signal amplification module, the first signal is obtained, including：
Control the selecting switch putting in order the signal receiving module and i-th according to preset low-noise amplifier
Low-noise amplifier is attached, wherein putting in order for the preset low-noise amplifier is each according to low-noise amplifier
From working frequency range corresponding to mobile communication protocol version by newly to the sequence after old arranged；
Judge whether to be successfully accessed mobile communications network；
The movement can not be accessed in the frequency of the signal of communication of reception in the working frequency range of i-th of low-noise amplifier
When communication network, i=i+1 is enabled, re-executes the control selecting switch by the signal receiving module and i-th of low noise
The step of acoustic amplifier is attached；
When being successfully accessed the mobile communications network, by i-th of low-noise amplifier to the wireless communication signals
It is amplified, obtains first signal.
5. according to the method described in claim 4, it is characterized in that, the signal is received mould by the control selecting switch
Block and i-th of low-noise amplifier are attached, including：
According to putting in order for the preset low-noise amplifier, control the selecting switch by the signal receiving module and
I-th of low-noise amplifier is attached.
6. method according to claim 4 or 5, which is characterized in that described to be received wirelessly by the signal receiving module
Signal of communication, including：
Wireless communication signals are received by antenna.
7. method according to claim 4 or 5, which is characterized in that it is described by the signal processing module to described
One signal is demodulated, and second signal is obtained, including：
First signal is demodulated by receiver, obtains second signal.
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| CN106330213A (en) * | 2016-09-18 | 2017-01-11 | 深圳铂睿智恒科技有限公司 | Radio frequency device enhancing sensitivity |
| CN106330248A (en) * | 2016-09-18 | 2017-01-11 | 深圳铂睿智恒科技有限公司 | Radio frequency system enhancing 2G/3G sensitivity |
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| US20100197263A1 (en) * | 2009-01-30 | 2010-08-05 | Research In Motion Limited | Method and apparatus for combined multi-carrier reception and receive antenna diversity |
| US20130016633A1 (en) * | 2011-07-14 | 2013-01-17 | Lum Nicholas W | Wireless Circuitry for Simultaneously Receiving Radio-frequency Transmissions in Different Frequency Bands |
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