CN107835045A - Intercommunication signal processing method, circuit and the mobile terminal of a kind of mobile terminal - Google Patents
Intercommunication signal processing method, circuit and the mobile terminal of a kind of mobile terminal Download PDFInfo
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- CN107835045A CN107835045A CN201711138855.0A CN201711138855A CN107835045A CN 107835045 A CN107835045 A CN 107835045A CN 201711138855 A CN201711138855 A CN 201711138855A CN 107835045 A CN107835045 A CN 107835045A
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- mobile terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present invention discloses intercommunication signal processing method, circuit and the mobile terminal of a kind of mobile terminal.The intercommunication signal processing method is applied to the mobile terminal provided with diversity antenna and intercommunication antenna, and the intercommunication signal processing method includes：By the diversity antenna be tuned to the antenna condition of intercommunication frequency band match；The intercommunication signal that the intercommunication signal and the intercommunication antenna received according to the diversity antenna receives, obtains target intercommunication signal, wherein, the signal to noise ratio of the target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that the intercommunication antenna receives.In order to increase transmission range and expand intercommunication activity extent, the embodiment of the present invention is by the way that the diversity antenna for receiving non-intercommunication signal to be multiplexed with to the diversity antenna of intercommunication antenna, it is set to receive intercommunication signal, add the receiving path of intercommunication signal, and then improve the receiving sensitivity of intercommunication signal, avoid in the prior art using increase send intercommunication signal mobile terminal transmission power by the way of caused by problem.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of intercommunication signal processing method of mobile terminal, circuit and
Mobile terminal.
Background technology
With the continuous innovation of the communication technology, mobile terminal (such as mobile phone) mobile phone for having intercommunication function obtains extensive pass
Note.The mobile terminal is commonly conversed due to that can either support, and can enough supports intercommunication function, so as to realize dual-use, improves
The practicality of mobile phone, application are increasingly extensive.
In the prior art, in order to realize the intercommunication function of mobile terminal, can be combined using application software with mobile terminal
Scheme.In the program, intercommunication application is installed in the terminal in advance, when user needs to use intercommunication function, operation should
Intercommunication application, by network transmission intercommunication signal, to realize intercommunication.But the program has to rely on network, without network environment
Or under the higher scene of network occupancy, then it can not apply intercommunication function.Therefore, second scheme, the program at present also be present
In, intercommunication receiving circuit built in mobile terminal and intercommunication radiating circuit, the intercommunication receiving circuit are used to receive intercommunication signal, intercommunication
Radiating circuit is used to launch intercommunication signal, is the intercommunication work(that mobile phone can be achieved by intercommunication receiving circuit and intercommunication radiating circuit
Can, without relying on network.
But inventor has found in the research process of the application, when carrying out intercommunication by intercommunication receiving circuit, intercommunication letter
Number it is radio wave, and radio wave is in communication process, easily by extraneous barrier (such as building and trees) and the external world
The influence of environment, causing intercommunication signal to be weakened, cause path attenuation, speech quality declines, so that transmission range shortens,
Reduce intercommunication activity extent.And currently in order to solving the problems, such as the diminution of intercommunication activity extent, common practice is increase intercommunication
The transmission power of the transmitting terminal of signal, but this can cause the power consumption for sending the mobile terminal of intercommunication signal to increase.And move end
What the battery capacity at end was usually fixed, the operating time of mobile terminal will necessarily be reduced by increasing the power consumption of mobile terminal, even
Clutter can be produced, interferes with the normal work of other equipment in mobile terminal (such as display screen and image first-class).
The content of the invention
When carrying out intercommunication by intercommunication receiving circuit and intercommunication transmitter in the prior art, in order to solve intercommunication activity extent
The problem of diminution, the transmission power of intercommunication signal sending end can be increased, but this can cause the mobile terminal of transmission intercommunication signal
Power consumption increase, so as to reduce the operating time of mobile terminal, or even produce clutter, influenceing in mobile terminal other equipment just
Often work.In order to solve this problem present in prior art, the embodiment of the present invention discloses a kind of intercommunication letter of mobile terminal
Number processing method, circuit and mobile terminal.
In the first aspect of the present invention, a kind of intercommunication signal processing method of mobile terminal disclosed, in the mobile terminal
Provided with intercommunication antenna and for receiving the diversity antenna of non-intercommunication signal, the intercommunication signal processing method includes：
By the diversity antenna be tuned to the antenna condition of intercommunication frequency band match；
The intercommunication signal that the intercommunication signal and the intercommunication antenna received according to the diversity antenna receives, obtains target pair
Signal is said, wherein, the signal to noise ratio of the target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that the intercommunication antenna receives.
Optionally, it is described by the diversity antenna be tuned to the antenna condition of intercommunication frequency band match the step of, specific bag
Include：
If the intensity of main collection antenna reception signal is more than predetermined threshold value in the mobile terminal, the diversity antenna is adjusted
The humorous antenna condition to intercommunication frequency band match.
Optionally, the intercommunication that the intercommunication signal received according to the diversity antenna and the intercommunication antenna receive is believed
Number, the step of obtaining target intercommunication signal, specifically include：
Intercommunication signal and the intercommunication antenna reception that the diversity antenna receives are synthesized using the mode of maximum-ratio combing
Intercommunication signal, to obtain target intercommunication signal.
Optionally, the intercommunication that the intercommunication signal received according to the diversity antenna and the intercommunication antenna receive is believed
Number, the step of obtaining target intercommunication signal, specifically include：
If the signal to noise ratio for the intercommunication signal that the diversity antenna receives is more than the intercommunication signal that the intercommunication antenna receives
Signal to noise ratio, then using the intercommunication signal that the diversity antenna receives as target intercommunication signal.
In the second aspect of the present invention, a kind of mobile terminal is disclosed, provided with intercommunication antenna and for receiving non-intercommunication signal
Diversity antenna, the mobile terminal includes memory and processor；
The memory is used to store computer program；
The processor is used to perform the computer program, to realize method as described in relation to the first aspect.
In the third aspect of the present invention, a kind of intercommunication signal processing circuit of mobile terminal disclosed, in the mobile terminal
Provided with intercommunication antenna and for receiving the diversity antenna of non-intercommunication signal, the intercommunication signal processing circuit includes antenna tuner
And signal processor；
The diversity antenna is connected by the antenna tuner with the signal processor, the intercommunication antenna with it is described
Signal processor connects；
The antenna tuner be used for by the diversity antenna be tuned to the antenna condition of intercommunication frequency band match；
The signal processor is used for what is received according to the intercommunication signal and the intercommunication antenna of diversity antenna reception
Intercommunication signal, target intercommunication signal is obtained, wherein, the signal to noise ratio of the target intercommunication signal is more than what the intercommunication antenna received
The signal to noise ratio of intercommunication signal.
Optionally, the intercommunication signal processing circuit also includes controller, on-off circuit and the first radio-frequency transmitter, institute
Switching circuit in series is stated between the diversity antenna and first radio-frequency transmitter, first radio-frequency transmitter is used to locate
Manage the non-intercommunication signal that the diversity antenna receives；
When the intensity of the non-intercommunication signal that main collection antenna receives in the mobile terminal is more than the instruction of predetermined threshold value, institute
State controller to be used to control the on-off circuit to disconnect, and enable the antenna tuner；
Otherwise, the controller is used to control the on-off circuit to turn on, and disables the antenna tuner.
Optionally, the signal processor is specifically used for synthesizing the diversity antenna reception using the mode of maximum-ratio combing
Intercommunication signal and the intercommunication antenna receive intercommunication signal, to obtain target intercommunication signal.
Optionally, the signal to noise ratio for the intercommunication signal that the signal processor is specifically used for receiving in the diversity antenna is more than
During the signal to noise ratio for the intercommunication signal that the intercommunication antenna receives, the intercommunication signal that the diversity antenna is received is as target intercommunication
Signal.
In the fourth aspect of the present invention, a kind of mobile terminal is disclosed, provided with intercommunication antenna and for receiving non-intercommunication signal
Diversity antenna, the mobile terminal includes intercommunication signal processing circuit as described in third aspect present invention.
Compared with it can only receive intercommunication signal all the way by intercommunication antenna in the prior art, the embodiment of the present invention can receive
Two-way intercommunication signal, specifically, intercommunication signal all the way is received by intercommunication antenna, and be used to connect by existing in mobile terminal
Receive non-intercommunication signal diversity antenna be tuned to the antenna condition of intercommunication frequency band match, its is received another way intercommunication signal.
This two-way intercommunication signal received by different antennae is orthogonal, and the embodiment of the present invention utilizes the orthogonal intercommunication of this two-way
Signal obtains the target intercommunication signal bigger than the signal to noise ratio of the intercommunication signal of the reception of intercommunication antenna in the prior art.
Due to the signal to noise ratio and receiving sensitivity correlation of signal, i.e. the signal to noise ratio of signal is bigger, and signal connects
It is higher to receive sensitivity, therefore, compared with the receiving sensitivity for the intercommunication signal that intercommunication antenna in the prior art receives, the present invention is real
The receiving sensitivity for applying the target intercommunication signal of example is improved, and the receiving sensitivity for improving signal can make mobile terminal
With the ability for more strongly capturing weak signal, so with the increase of transmission range, the intercommunication signal weaker of reception, high sensitivity
Mobile terminal can still receive intercommunication signal, maintain to be stably connected with, greatly improve transmission range, expand intercommunication activity extent.
Therefore, in order to increase transmission range and expand intercommunication activity extent, the embodiment of the present invention is by will receive point of non-intercommunication signal
Integrate the antenna multiplexed diversity antenna as intercommunication antenna, it is received intercommunication signal, add the receiving path of intercommunication signal, and then
The receiving sensitivity of intercommunication signal is improved, avoids the hair for the mobile terminal for sending intercommunication signal using increase in the prior art
Problem caused by the mode of power is penetrated, such as the power consumption of mobile terminal can be caused to increase, produce the clutter of interference other equipment
Deng.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the intercommunication signal processing method of mobile terminal disclosed in the embodiment of the present invention；
Fig. 2 is the flow chart of the intercommunication signal processing method of another mobile terminal disclosed in the embodiment of the present invention；
Fig. 3 is a kind of structural representation of the intercommunication signal processing circuit of mobile terminal disclosed in the embodiment of the present invention；
Fig. 4 is the structural representation of the intercommunication signal processing circuit of another mobile terminal disclosed in the embodiment of the present invention；
Fig. 5 is the structural representation of antenna tuner disclosed in the embodiment of the present invention；
Fig. 6 is the structural representation of the intercommunication signal processing circuit of another mobile terminal disclosed in the embodiment of the present invention；
Fig. 7 is the signal processor in the intercommunication signal processing circuit of a kind of mobile terminal disclosed in the embodiment of the present invention
Circuit diagram；
Fig. 8 is the frequency mixer in the shared intercommunication transmitter of frequency mixer in the second frequency mixing module disclosed in the embodiment of the present invention
Electrical block diagram.
Embodiment
When carrying out intercommunication by intercommunication receiving circuit and intercommunication transmitter in the prior art, in order to solve intercommunication activity extent
The problem of diminution, the transmission power of intercommunication signal sending end can be increased, but this can cause the mobile terminal of transmission intercommunication signal
Power consumption increase, so as to reduce the operating time of mobile terminal, or even produce clutter, influenceing in mobile terminal other equipment just
Often work.In order to solve this problem present in prior art, the embodiment of the present invention discloses a kind of intercommunication letter of mobile terminal
Number processing method, circuit and mobile terminal.
First embodiment of the invention discloses a kind of intercommunication signal processing method of mobile terminal, is provided with the mobile terminal
Intercommunication antenna and the diversity antenna for receiving non-intercommunication signal.In the mobile terminal of prior art, main collection antenna is generally used
In sending and receiving non-intercommunication signal, and diversity antenna is generally used for receiving non-intercommunication signal, to assist the work of main collection antenna,
Reduce the influence for the non-intercommunication signal that rapid fading receives to main collection antenna.Here non-intercommunication signal is specifically as follows honeycomb letter
Number, such as 2G signals, 3G signals or 4G signals etc., can also be gps signal or WIFI signal etc..
Workflow schematic diagram shown in Figure 1, the intercommunication signal processing method comprise the following steps：
Step S11, by diversity antenna be tuned to the antenna condition of intercommunication frequency band match.
It is to be appreciated that intercommunication antenna and the diversity antenna for receiving non-intercommunication signal are operated in different frequencies respectively
Section.Such as in mobile phone, the working frequency range of diversity antenna is usually 700MHz-2.6GHz, and the working frequency range of intercommunication antenna leads to
Often it is 300MHz-800MHz.Intercommunication frequency range in the present embodiment can be 300MHz-800MHz.
In the embodiment of the present invention, by step S11, the work shape that diversity antenna is tuned to match with intercommunication frequency range
State, so that diversity antenna no longer assists main collection Antenna Operation, but for receiving intercommunication signal.
Step S12, the intercommunication signal that the intercommunication signal and intercommunication antenna received according to diversity antenna receives, obtains target pair
Say signal.Wherein, the signal to noise ratio of target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that intercommunication antenna receives.
In the present embodiment, the two-way intercommunication signal received by intercommunication antenna and diversity antenna is orthogonal, step S12 profits
Obtained with the orthogonal intercommunication signal of this two-way bigger than the signal to noise ratio of the intercommunication signal of the reception of intercommunication antenna in the prior art
Target intercommunication signal.
In the prior art, formula is followed between receiving sensitivity and signal to noise ratio：S=10lg (KTB)+NF+SNR, wherein, S
For receiving sensitivity, KTB represents the thermal noise power in bandwidth range, and NF represents noise coefficient, and SNR represents signal to noise ratio.Signal
Signal to noise ratio and receiving sensitivity correlation, i.e. the signal to noise ratio of signal is bigger, and the receiving sensitivity of signal is higher, because
This, compared with the receiving sensitivity for the intercommunication signal that intercommunication antenna in the prior art receives, the target intercommunication of the embodiment of the present invention
The receiving sensitivity of signal is improved, and the receiving sensitivity for improving signal can make mobile terminal have more strongly capture
The ability of weak signal, so as the increase of transmission range, reception signal die down, highly sensitive mobile terminal can still receive
Intercommunication signal, maintain to be stably connected with, greatly improve transmission range, expand intercommunication activity extent.With passing through increase in the prior art
The transmission power for sending the mobile terminal of intercommunication signal is compared, and the embodiment of the present invention is by will receive the diversity day of non-intercommunication signal
Line is multiplexed with the diversity antenna of intercommunication antenna, it is received intercommunication signal, adds the receiving path of intercommunication signal, and then improve
The receiving sensitivity of intercommunication signal, it is achieved thereby that increase transmission range and expanding intercommunication activity extent.
In a kind of optional embodiment, when the intensity of the non-intercommunication signal that main collection antenna receives in mobile terminal is more than
During predetermined threshold value, by the diversity antenna be tuned to the antenna condition of intercommunication frequency band match.In the present embodiment, however, it is determined that main collection
The intensity for the non-intercommunication signal that antenna receives is more than predetermined threshold value, then illustrates that the non-intercommunication signal that main collection antenna receives is stronger,
Non- intercommunication signal is received by main collection antenna itself, the work of the main collection antenna, this feelings are assisted without diversity antenna
Under condition, can by diversity antenna be tuned to the antenna condition of intercommunication frequency band match, receive intercommunication signal will pass through diversity antenna.
Specifically, comprise the following steps referring to Fig. 2, the present embodiment：
Step S21, the intensity of the non-intercommunication signal that main collection antenna receives in mobile terminal is obtained.
Wherein, the intensity for the non-intercommunication signal that main collection antenna receives can generally pass through the signal of diversified forms in mobile terminal
Intensive parameter represents.For example, the signal strength parameter, which can be RSCP, (Received Signal Code Power, receives letter
Same level) and/or carrier to noise ratio C/N0 etc., it is, of course, also possible to determine main collection antenna by the signal strength parameter of other forms
The intensity of the non-intercommunication signal received, the embodiment of the present invention are not limited this.
Step S22, judge whether the intensity of the non-intercommunication signal that main collection antenna receives in mobile terminal is more than predetermined threshold value,
If so, step S23 operation is then performed, if it is not, then performing step S25 operation.
Step S23, by diversity antenna be tuned to the antenna condition of intercommunication frequency band match.
Step S24, the intercommunication signal that the intercommunication signal and intercommunication antenna received according to diversity antenna receives, obtains target pair
Say signal.Wherein, the signal to noise ratio of target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that intercommunication antenna receives.
Step S25, keep the antenna condition of diversity antenna constant.
Wherein, if the intensity for the non-intercommunication signal that main collection antenna receives is less than or equal to predetermined threshold value in mobile terminal, say
The non-intercommunication signal intensity that bright main collection antenna receives is poor, it is necessary to which diversity antenna receives non-intercommunication signal to assist main collection antenna
Work, in this case, keep the antenna condition of diversity antenna constant.
Above-mentioned steps S12 or S24, i.e., the intercommunication that the intercommunication signal and intercommunication antenna received according to diversity antenna receives are believed
Number, the step of obtaining target intercommunication signal, can be accomplished in several ways, so that the letter of obtained target intercommunication signal
Make an uproar than the signal to noise ratio of the intercommunication signal received more than intercommunication antenna.
In a kind of optional embodiment, the intercommunication signal of diversity antenna reception is synthesized using the mode of maximum-ratio combing
The intercommunication signal received with intercommunication antenna, to obtain target intercommunication signal.Wherein, maximum-ratio combing (maximal rate
Combination, MRC), refer to multiple signals are carried out with mutually weighting to merge, weight is as the letter corresponding to each tributary signal
What number power and the ratio of noise power were determined, the output signal-to-noise ratio (SIGNAL-NOISE RATIO, SNR) of maximum-ratio combing
Equal to each road signal to noise ratio sum.In the present embodiment, the signal to noise ratio of target intercommunication signal is equal to the intercommunication signal that diversity antenna receives
The intercommunication signal that receives of signal to noise ratio and intercommunication antenna signal to noise ratio and.
In optional another embodiment, if the signal to noise ratio for the intercommunication signal that diversity antenna receives is more than intercommunication antenna
The signal to noise ratio of the intercommunication signal of reception, then the intercommunication signal received diversity antenna is as target intercommunication signal.In the present embodiment,
If the signal to noise ratio for the intercommunication signal that diversity antenna receives is more than the signal to noise ratio for the intercommunication signal that intercommunication antenna receives, abandon pair
Say the intercommunication signal that antenna receives, but the intercommunication signal for directly receiving diversity antenna is as target intercommunication signal,
Accordingly, in an alternative embodiment of the invention, a kind of mobile terminal is disclosed.The mobile terminal be provided with intercommunication antenna and
For receiving the diversity antenna of non-intercommunication signal, also, the mobile terminal includes memory and processor.
Wherein, the memory is used to store computer program.
The processor is used to perform the computer program, to realize pair disclosed in the above-mentioned each embodiment of the present invention
Say signal processing method.
Another embodiment of the present invention discloses a kind of intercommunication signal processing circuit of mobile terminal, wherein, set in mobile terminal
There are intercommunication antenna and the diversity antenna for receiving non-intercommunication signal.Structural representation shown in Figure 3, intercommunication signal transacting
Circuit includes antenna tuner 100 and signal processor 200.Wherein, diversity antenna passes through at antenna tuner 100 and signal
Reason device 200 is connected, and intercommunication antenna is connected with signal processor 200.
Antenna tuner 100 be used for by diversity antenna be tuned to the antenna condition of intercommunication frequency band match.
Signal processor 200 is used for the intercommunication signal that the intercommunication signal received according to diversity antenna and intercommunication antenna receive,
Obtain target intercommunication signal.Wherein, the signal to noise ratio of target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that intercommunication antenna receives.
In a kind of optional embodiment, structural representation shown in Figure 4, above-mentioned intercommunication signal processing circuit is also
Including controller 210, the radio-frequency transmitter 230 of on-off circuit 220 and first, on-off circuit 220 is series at diversity antenna and
Between one radio-frequency transmitter 230, the first radio-frequency transmitter is used for the non-intercommunication signal for handling diversity antenna reception.
When the intensity of the non-intercommunication signal that main collection antenna receives in mobile terminal is more than the instruction of predetermined threshold value, controller
210 disconnect for controlling switch circuit 220, and enabled antenna tuner 100.Now, antenna tuner 100 is in enabled shape
State, can by diversity antenna be tuned to the antenna condition of intercommunication frequency band match, i.e. diversity antenna be now used to receive intercommunication signal,
In Fig. 4, the path between diversity antenna and the first radio-frequency transmitter 230 is off, and signal processor 200 is used to receive
The intercommunication signal that the intercommunication signal and intercommunication antenna that diversity antenna receives receive, and target pair is obtained according to two-way intercommunication signal
Say signal.
When the intensity of the non-intercommunication signal that main collection antenna receives in mobile terminal is less than or equal to the instruction of predetermined threshold value, control
Device 210 processed is used for the electric 220 tunnels conducting of controlling switch, and disables antenna tuner 100.Now, antenna tuner 100 is in disabling
State, the antenna condition of diversity antenna remain unchanged, for assisting main collection antenna to receive non-intercommunication signal, in Fig. 4, and diversity antenna
Path between the first radio-frequency transmitter 230 is in the conduction state, and the first radio-frequency transmitter is used to handle diversity antenna reception
Non- intercommunication signal.
In a kind of optional embodiment, structural representation shown in Figure 5, above-mentioned antenna tuner 100 includes
Switch S1, and tunable capacitor C and controllable impedance L.In the present embodiment, it can be turned on by controlling switch S1 and be adjusted with enabling antenna
Humorous device 100, disconnected by controlling switch S1 to disable antenna tuner 100.Wherein, tunable capacitor C and controllable impedance L value have
Body is adjusted according to the working frequency range of intercommunication frequency range and diversity antenna, that is to say, that tunable capacitor C and adjustable electric after regulation
Feel L can by diversity antenna be tuned to the antenna condition of intercommunication frequency band match.
As long as can by diversity antenna be tuned to can be with the antenna condition of intercommunication frequency band match, antenna tuner 100
There is the other embodiment in addition to Fig. 5, such as can will switch S1 serial adjustable senses, can also be by the adjustable electric in Fig. 5
Sense L is replaced by the inductance with fixed inductance value, and tunable capacitor C is replaced by into electric capacity with fixed capacitance etc..
In a kind of optional embodiment, structural representation shown in Figure 6, above-mentioned signal processor 200 includes
Second radio-frequency transmitter 240, the 3rd radio-frequency transmitter 250 and output unit 260.
Wherein, the second radio-frequency transmitter 240 is used for the intercommunication signal for handling diversity antenna reception, the 3rd radio-frequency transmitter
250 are used to handle the intercommunication signal that the intercommunication antenna receives, and output unit 260 is used to be received according to the intercommunication antenna after processing
Intercommunication signal and processing after diversity antenna receive intercommunication signal, obtain target intercommunication signal.Wherein, target intercommunication is believed
Number signal to noise ratio be more than intercommunication antenna receive intercommunication signal signal to noise ratio.
Further, in embodiments of the present invention, the second radio-frequency transmitter generally includes：Second radio frequency low-noise amplifies
Device, the second wave filter being connected with the second radio frequency low-noise amplifier, the second frequency mixing module being connected with the second wave filter,
And the second intermediate frequency low-noise amplifier being connected with the second frequency mixing module.
Second radio frequency low-noise amplifier is used for the intercommunication signal for receiving diversity antenna transmission, and the intercommunication to receiving is believed
Number processing is amplified, the intercommunication signal being amplified after processing, the intercommunication signal after the enhanced processing is usually pair of high frequency
Say signal.Second wave filter is filtered after the intercommunication signal after receiving enhanced processing to the intercommunication signal after enhanced processing
Ripple processing, to filter out the interference signal beyond intercommunication signal, then filtered intercommunication signal is transmitted to the second frequency mixing module.The
After two frequency mixing modules receive filtered intercommunication signal, Frequency mixing processing is carried out to it, obtains the intercommunication signal after Frequency mixing processing,
Intercommunication signal after Frequency mixing processing is usually the intercommunication signal of intermediate frequency.First intermediate frequency low-noise amplifier is received at mixing
After intercommunication signal after reason, processing is amplified to it, the intercommunication signal after being amplified, then the intercommunication signal after amplification is passed
Transport to output unit.
Accordingly, the 3rd radio-frequency transmitter includes：3rd radio frequency low-noise amplifier and the 3rd radio frequency low-noise amplifier
The 3rd wave filter being connected, the 3rd frequency mixing module being connected with the 3rd wave filter, and be connected with the 3rd frequency mixing module
The 3rd intermediate frequency low-noise amplifier.
Wherein, the 3rd radio frequency low-noise amplifier is used to receiving the intercommunication signal of intercommunication antenna transmission, and is receiving pair
After saying the intercommunication signal of antenna transmission, the 3rd radio frequency low-noise amplifier is amplified processing to the intercommunication signal, is amplified
Intercommunication signal after processing, the intercommunication signal after the enhanced processing are usually the intercommunication signal of high frequency.3rd wave filter is receiving
After intercommunication signal after to enhanced processing, processing is filtered to it, to filter out the interference signal beyond intercommunication signal, then will filter
Intercommunication signal after ripple is transmitted to the 3rd frequency mixing module.After 3rd frequency mixing module receives filtered intercommunication signal, it is entered
Row Frequency mixing processing, the intercommunication signal after Frequency mixing processing is obtained, the intercommunication signal after Frequency mixing processing is usually the intercommunication of intermediate frequency
Signal.After 3rd intermediate frequency low-noise amplifier receives the intercommunication signal after Frequency mixing processing, processing is amplified to it, is put
Intercommunication signal after big, then the intercommunication signal after amplification is transmitted to output unit.
In embodiments of the present invention, the second frequency mixing module and the 3rd frequency mixing module can be two independent frequency mixing modules.
In this case, the second frequency mixing module includes：Second frequency mixer, the second voltage controlled oscillator and second frequency synthesizer.Wherein,
Two frequency mixers are connected with the second voltage controlled oscillator；Second voltage controlled oscillator and second frequency synthesizer form closed circuit, lead to
Cross the second voltage controlled oscillator and export the second local oscillation signal to the second frequency mixer；Second frequency mixer receives the output of the second wave filter
After filtering signal and the second local oscillation signal, Frequency mixing processing is carried out to filtering signal and the second local oscillation signal, obtains the intercommunication of intermediate frequency
Signal, then the intercommunication signal of intermediate frequency is transmitted to the second intermediate frequency low-noise amplifier.
Accordingly, the 3rd frequency mixing module includes：Three-mixer, the 3rd voltage controlled oscillator and the 3rd frequency synthesizer.Its
In, three-mixer is connected with the 3rd voltage controlled oscillator；3rd voltage controlled oscillator and the 3rd frequency synthesizer form close ring
Road, the 3rd local oscillation signal is exported to three-mixer by the 3rd voltage controlled oscillator；Three-mixer receives the 3rd wave filter
After the filtering signal of output and the 3rd local oscillation signal, Frequency mixing processing is carried out to filtering signal and the 3rd local oscillation signal, obtains intermediate frequency
Intercommunication signal, then the intercommunication signal of intermediate frequency is transmitted to the 3rd intermediate frequency low-noise amplifier.
Further, in order to save circuit devcie, voltage controlled oscillator in the second frequency mixing module and the 3rd frequency mixing module and
Frequency synthesizer can share.In this case, structural representation shown in Figure 7, the 3rd radio-frequency transmitter bag in Fig. 7
Include：3rd radio frequency low-noise amplifier 251, the 3rd wave filter 252, the 3rd frequency mixing module and the 3rd intermediate frequency low-noise amplifier
254。
Accordingly, the second radio-frequency transmitter includes：Second radio frequency low-noise amplifier 241, the second wave filter 242, second
Frequency mixing module and the second intermediate frequency low-noise amplifier 244.
In addition, the 3rd frequency mixing module includes：Three-mixer 253, the 3rd voltage controlled oscillator 255 and the 3rd frequency synthesizer
256.Second frequency mixing module includes：Second frequency mixer 243.
Wherein, the frequency mixer 243 of three-mixer 253 and the 4th is connected with the 3rd voltage controlled oscillator 255.3rd is voltage-controlled
Closed circuit is formed between the frequency synthesizer 256 of oscillator 255 and the 3rd.
When the 3rd frequency synthesizer 256 receives the first level signal, the control the 3rd of the 3rd frequency synthesizer 256 is voltage-controlled
Oscillator 255 exports the 3rd local oscillation signal to three-mixer 253, and exports the second local oscillation signal to the second frequency mixer 243；
After three-mixer 253 receives the filtering signal and the 3rd local oscillation signal of the output of the 3rd wave filter, to filtering signal and the 3rd
Local oscillation signal carries out Frequency mixing processing, obtains the intercommunication signal of intermediate frequency, then the intercommunication signal of intermediate frequency is transmitted to the 3rd intermediate frequency low noise
Acoustic amplifier 254；After second frequency mixer 243 receives the filtering signal and the second local oscillation signal of the output of the second wave filter, to filter
Ripple signal and the second local oscillation signal carry out Frequency mixing processing, obtain the intercommunication signal of intermediate frequency, then by the intercommunication signal of intermediate frequency transmit to
Second intermediate frequency low-noise amplifier 244.
In addition, the chip built in mobile terminal can be controlled to the 3rd frequency synthesizer, for different to its input
Level signal.
Further, intercommunication transmitter is additionally provided with the terminal, for launching intercommunication signal.The work side of intercommunication
Formula is usually transmit-receive cofrequency half-duplex mode, that is to say, that in the same time, can only receive intercommunication signal, or can only launch
Intercommunication signal, the two can not be carried out simultaneously.That is, when receiving intercommunication signal, frequency mixer in intercommunication transmitter not work
Make.In this case, the second radio-frequency transmitter can share the frequency mixer in intercommunication transmitter
When the frequency mixer in the second frequency mixing module in the second radio-frequency transmitter shares the frequency mixer in intercommunication transmitter, the
Two radio-frequency transmitters also include：First path selection circuit and alternate path selection circuit.Wherein, the first path selection circuit
300 and alternate path selection circuit 400 with the attachment structures of other devices as shown in figure 8, the second radio-frequency transmitter shares pair
The 4th frequency mixer 300 in transmitter is said, when receiving intercommunication signal, by controlling the first path selection circuit and alternate path
The direction of selection circuit, it may be such that the second wave filter, the first path selection circuit, the 4th frequency mixer, alternate path selection circuit
And second form path between intermediate frequency low-noise amplifier.
In second radio-frequency transmitter of the present embodiment, the mixing in frequency mixer and intercommunication transmitter in the second frequency mixing module
Sharing for device, saves circuit devcie, so as to reduce the occupancy to mobile terminal inner space.
In an alternative embodiment of the invention, a kind of mobile terminal is also disclosed, intercommunication antenna and use are provided with the mobile terminal
In the diversity antenna for receiving non-intercommunication signal.Also, the mobile terminal includes the intercommunication disclosed in the above embodiment of the present invention
Signal processing circuit.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on such understanding, the technical scheme in the embodiment of the present invention substantially or
Say that the part to be contributed to prior art can be embodied in the form of software product, the computer software product can be deposited
Storage is in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are causing a computer equipment (can be with
Be personal computer, server, either network equipment etc.) perform some part institutes of each embodiment of the present invention or embodiment
The method stated.
In this specification between each embodiment identical similar part mutually referring to.Especially for ... implement
For example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring in embodiment of the method
Explanation.
Invention described above embodiment is not intended to limit the scope of the present invention..
Claims (10)
- Intercommunication antenna and non-right for receiving is provided with 1. a kind of intercommunication signal processing method of mobile terminal, in the mobile terminal Say the diversity antenna of signal, it is characterised in that the intercommunication signal processing method includes：By the diversity antenna be tuned to the antenna condition of intercommunication frequency band match；The intercommunication signal that the intercommunication signal and the intercommunication antenna received according to the diversity antenna receives, obtain target intercommunication letter Number, wherein, the signal to noise ratio of the target intercommunication signal is more than the signal to noise ratio for the intercommunication signal that the intercommunication antenna receives.
- 2. intercommunication signal processing method according to claim 1, it is characterised in that it is described by the diversity antenna be tuned to The step of with the antenna condition of intercommunication frequency band match, specifically include：If the intensity for the non-intercommunication signal that main collection antenna receives is more than predetermined threshold value in the mobile terminal, by the diversity day Line be tuned to the antenna condition of intercommunication frequency band match.
- 3. intercommunication signal processing method according to claim 1 or 2, it is characterised in that described according to the diversity antenna The intercommunication signal that the intercommunication signal of reception and the intercommunication antenna receive, the step of obtaining target intercommunication signal, specifically include：The intercommunication signal of the diversity antenna reception and pair of intercommunication antenna reception are synthesized using the mode of maximum-ratio combing Signal is said, to obtain target intercommunication signal.
- 4. intercommunication signal processing method according to claim 1 or 2, it is characterised in that described according to the diversity antenna The intercommunication signal that the intercommunication signal of reception and the intercommunication antenna receive, the step of obtaining target intercommunication signal, specifically include：If the signal to noise ratio for the intercommunication signal that the diversity antenna receives is more than the noise for the intercommunication signal that the intercommunication antenna receives Than then using the intercommunication signal that the diversity antenna receives as target intercommunication signal.
- 5. a kind of mobile terminal, provided with intercommunication antenna and for receiving the diversity antenna of non-intercommunication signal, it is characterised in that described Mobile terminal includes memory and processor；The memory is used to store computer program；The processor is used to perform the computer program, to realize the method as any one of claim 1-4.
- Intercommunication antenna and non-right for receiving is provided with 6. a kind of intercommunication signal processing circuit of mobile terminal, in the mobile terminal Say the diversity antenna of signal, it is characterised in that the intercommunication signal processing circuit includes antenna tuner and signal processor；The diversity antenna is connected by the antenna tuner with the signal processor, the intercommunication antenna and the signal Processor connects；The antenna tuner be used for by the diversity antenna be tuned to the antenna condition of intercommunication frequency band match；The signal processor is used for the intercommunication that the intercommunication signal received according to the diversity antenna and the intercommunication antenna receive Signal, target intercommunication signal is obtained, wherein, the signal to noise ratio of the target intercommunication signal is more than the intercommunication that the intercommunication antenna receives The signal to noise ratio of signal.
- 7. intercommunication signal processing circuit according to claim 6, it is characterised in that the intercommunication signal processing circuit is also wrapped Controller, on-off circuit and the first radio-frequency transmitter are included, the switching circuit in series is in the diversity antenna and described first Between radio-frequency transmitter, first radio-frequency transmitter is used to handle the non-intercommunication signal that the diversity antenna receives；When the intensity of the non-intercommunication signal that main collection antenna receives in the mobile terminal is more than the instruction of predetermined threshold value, the control Device processed is used to control the on-off circuit to disconnect, and enables the antenna tuner；Otherwise, the controller is used to control the on-off circuit to turn on, and disables the antenna tuner.
- 8. the intercommunication signal processing circuit according to claim 6 or 7, it is characterised in that the signal transacting implement body is used The intercommunication signal of the diversity antenna reception and the intercommunication of intercommunication antenna reception are synthesized in the mode using maximum-ratio combing Signal, to obtain target intercommunication signal.
- 9. the intercommunication signal processing circuit according to claim 6 or 7, it is characterised in that the signal transacting implement body is used It is more than the signal to noise ratio for the intercommunication signal that the intercommunication antenna receives in the signal to noise ratio of the intercommunication signal received in the diversity antenna When, using the intercommunication signal that the diversity antenna receives as target intercommunication signal.
- 10. a kind of mobile terminal, provided with intercommunication antenna and for receiving the diversity antenna of non-intercommunication signal, it is characterised in that institute Stating mobile terminal includes the intercommunication signal processing circuit as any one of claim 6-9.
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| CN201711138855.0A CN107835045B (en) | 2017-11-16 | 2017-11-16 | Intercom signal processing method and circuit of mobile terminal and mobile terminal |
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| CN201711138855.0A CN107835045B (en) | 2017-11-16 | 2017-11-16 | Intercom signal processing method and circuit of mobile terminal and mobile terminal |
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| CN107835045B (en) | 2021-05-28 |
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