CN104065423B - Signal processing system and the signal processing method - Google Patents
Signal processing system and the signal processing method Download PDFInfo
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- CN104065423B CN104065423B CN201310084700.9A CN201310084700A CN104065423B CN 104065423 B CN104065423 B CN 104065423B CN 201310084700 A CN201310084700 A CN 201310084700A CN 104065423 B CN104065423 B CN 104065423B
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Abstract
A kind of signal processing system, for an antenna transmission signal, comprising the first signal processing unit, first path and the second path.First signal processing unit receives the first signal and produces the first subsignal and the second subsignal.One end of first path receives the first subsignal, and the other end exports the first subsignal to antenna.First signal of one end reception antenna transmission in the second path, the other end export the first signal.Wherein, secondary signal processing unit, gain unit and circuit unit are included at least in the second path.Secondary signal processing unit receives the first signal and produces the 3rd subsignal and the 4th subsignal.Gain unit receives the 3rd subsignal and to the first signal of gain.Circuit unit after the 4th subsignal is received judges whether enable gain unit, or adjusts its gain size.In addition, the present invention also provides a kind of signal processing method, the method is applied in above-mentioned signal processing system.
Description
【Technical field】
The present invention relates to a kind of signal processing system, and in particular to a kind of signal processing system and the signal processing method.
【Background technology】
In general, electronic installation utilizes a micro controller unit（Microcontroller Unit,MCU）To control nothing
The transmitting-receiving action of line signal, wireless signal such as WLAN（Wireless Local Area Network,WLAN）
Deng.However, when receive wireless signal it is excessively weak when, it is possible to cause micro controller unit cannot normal operation, for example cannot be correct
Deciphering receive wireless signal.On the other hand, when the signal of electronic installation transmission is short of enough energy, signal then cannot be as
It is expected to be transferred into predetermined destination.Therefore, how this is possessing under original framework, strengthens for the receipts of wireless signal
The ability of sending out, becomes the important research topic in this area one.
【The content of the invention】
The present invention provides a kind of signal processing system, can be according to the enable of the strong and weak control gain unit for receiving signal.
The present invention provides a kind of signal processing system, for an antenna transmission signal, comprising the first signal processing unit, the
One path and the second path.First signal processing unit receives the first signal and after producing the first signal processing unit processes
First subsignal and the second subsignal.One end of first path receives the first subsignal, the other end output first of first path
Subsignal is to antenna.First signal of one end reception antenna transmission in the second path, the other end output antenna in the second path are passed
The first signal for sending.
Wherein, secondary signal processing unit, the first gain unit and the first circuit unit are included at least in the second path, the
Binary signal processing unit receives the first signal that the second path receives the after producing secondary signal processing unit processes the 3rd sub
Signal and the 4th subsignal, the first gain unit receive the 3rd subsignal and to the first signal of gain, the first circuit unit in
After receiving the 4th subsignal, the enable of the first gain unit is controlled.
In addition, the present invention provides a kind of signal processing method, it is adaptable to a signal processing system.First, receive first to believe
Number to the first signal processing unit, the first signal processing unit produces the first subsignal and the second subsignal according to the first signal.
Then, the first subsignal is transmitted to first path.When the first signal to a secondary signal processing unit is received from the second path,
Secondary signal processing unit produces the 3rd subsignal and the 4th subsignal.Then, the 3rd subsignal is transmitted to the first gain unit
With the first signal of gain, and the 4th subsignal of transmission, to the first circuit unit, the first circuit unit is according to the 4th subsignal control
Make the enable of the first gain unit.
A kind of signal processing system provided compared to prior art, the present invention and the signal processing method, but self is detectd
Signal is surveyed for transmission signal or signal is received, and switching transmits signal through first path and letter received through the second path
Number, and the enable of gain unit is controlled according to the signal strength signal intensity for receiving signal.
【Description of the drawings】
Fig. 1 is schematically shown as the first functional block diagram of signal processing system of the present invention.
Fig. 2 is schematically shown as the functional block diagram of circuit unit of the present invention.
Fig. 3 is schematically shown as the second functional block diagram of signal processing system of the present invention.
Fig. 4 is schematically shown as the 3rd functional block diagram of signal processing system of the present invention.
Fig. 5 is schematically shown as the 4th functional block diagram of signal processing system of the present invention.
The flow chart that Fig. 6 is schematically shown as signal processing method of the present invention.
【Specific embodiment】
Refer to Fig. 1, signal processing system 10 is by 200 transmission signal of antenna, including signal processing unit 110, first
Path 120, the second path 130 and circuit unit 140.Signal processing unit 110, receives the first signal S1, and produces signal
Subsignal SS1 and the second subsignal SS2 after the process of processing unit 110.
One end coupling signal processing unit 110 of first path 120, receives subsignal SS1.First path 120 it is another
End coupling antenna 200, subsignal SS1 is to antenna 200 for output.One end coupling antenna 200 in the second path 130, receives from antenna
First signal S1 of 200 transmission.The other end coupling signal processing unit 110 in the second path 130, to signal processing unit 110
Export the first signal S1 from the transmission of antenna 200.
In the present embodiment, gain unit 131 is further comprises in the second path 130, to gain the first signal S1.And the
Also include in one path 120 that gain unit 121 is sent to the subsignal SS1 of antenna 200 with gain.
Circuit unit 140 couples signal processing unit 110 and gain unit 131, receives son from signal processing unit 110
Signal SS2, and the enable of gain unit 121 is controlled according to subsignal SS2.
Following situation is then included according to the enable of subsignal SS2 controls.First, decide whether to cause according to subsignal SS2
Can gain unit 121 or gain unit 131.And gain unit 121 and gain unit 131 have a preset gain value respectively,
After gain unit 121 and/or gain unit 131 are by 140 enable of circuit unit, then gain unit 131 and/or gain unit 131
According to preset gain value gain signal SS1 and/or signal S1.Or, gain unit 121 and/or gain unit 131 are according to subsignal
The intensity of SS2, determines a yield value respectively, and according to above-mentioned yield value gain subsignal SS1 and/or signal S1.
It should be noted that signal processing system 10 includes two kinds of mode of operations, transfer mode and reception pattern, and
Switch above-mentioned two kind mode of operation through 140 selective enable gain unit 121 of circuit unit or gain unit 131.
But before two kinds of above-mentioned mode of operations are illustrated, it is necessary to which what is first illustrated is the function mode of signal processing unit 110.
Signal processing unit 110 is via signaling point SIN and electronic installation（Do not illustrate）In other components, such as wireless telecommunications
Module, or a microcontroller of control signal transmitting-receiving ability（Microcontroller Unit,MCU）Connection.Signal transacting
Unit 110 can receive the first signal S1 from signaling point SIN, produce subsignal SS1 and SS2, then distinguish after processing the first signal S1
Subsignal SS1 and SS2 are sent to into first path 120 and circuit unit 140.Signal processing unit 110 also can be from the second tunnel
Footpath 130 receives the first signal S1, produces subsignal SS1 and SS2 after processing the first signal S1, and signal processing unit 110 is distinguished again
Subsignal SS1 and SS2 are sent to into signaling point SIN and circuit unit 140.
Wherein, signal processing unit 110 produces subsignal SS1 and SS2 in the way of separating or couple.In the present embodiment
In, signal processing unit 110 receives the first signal S1, couples the first signal S1 and produces subsignal SS2, the first original signal
S1 is then converted to subsignal SS1.That is, in the present embodiment, the first signal S1 is identical with subsignal SS1, and subsignal
SS2 then has the proportionate relationship in intensity between the first signal S1, but the intensity that also can arrange subsignal SS2 is and the first signal
S1 is equal.Here, need to only guarantee that the intensity size of subsignal SS2 is directly proportional i.e. to the intensity size of the first original signal S1
Can.
And when signal processing unit 110 takes detached mode to produce subsignal SS1, SS2, subsignal SS1, SS2's
Intensity then all has a proportionate relationship with the intensity size of the first signal S1, but due to the first signal S1 and subsignal SS1, SS2
It is essential identical.In the present invention, subsignal SS1 is still regarded as and the first signal S1 identical signals.
In the present invention, signal processing unit 110 have judge the first signal S1 be from signaling point SIN inflow or
From the ability that the second path 130 flows into, therefore there is no the energy for judging that current first signal S1 is transmission signal or reception signal
Power.Therefore, 10 it is also provided with circuit unit 140 to switch transfer mode and reception pattern in signal processing system, both
Mode of operation.Circuit unit 140 is switching transfer mode or reception pattern, that is, basis with the intensity of subsignal SS2
The intensity of subsignal SS2 is selecting enable gain unit 121 or 131.Hereinafter the start then for circuit unit 140 is said
It is bright.
Fig. 2 is refer to, circuit unit 140 includes judging unit 141 and control unit 142.Above-mentioned content is carry over,
Judging unit 141 receives subsignal SS2 from signal processing unit 110, and subsignal SS2 is converted to judges signal DS2.At this
In embodiment, the intensity size conversion subsignal SS2 of 141 corresponding subsignal SS2 of judging unit is to judge signal DS2, and judges
Signal DS2 is then a data signal, intensity size of its numerical value corresponding to subsignal SS2.
Control unit 142 couples judging unit 141, receives from judging unit 141 and judges signal DS2, according to judging signal
DS2 decides whether enable gain unit 121 and 131.In the present embodiment, 142 multilevel iudge signal DS2 of control unit is pre- with one
If the size between threshold values.When the numerical value for judging signal DS2 is more than pre-set threshold value, control unit 142 is judged at current signal
Reason system 10 is transfer mode, and the first signal S1 is to flow into signal processing unit 110 by signaling point SIN.Therefore, control unit
142 transmission control signals ES21 are to gain unit 121 with enable gain unit 121.And when the numerical value for judging signal DS2 is less than in advance
If during threshold values, control unit 142 judges current signal processing system 10 as reception pattern, the first signal S1 is by the second path
130 flow into signal processing unit 110.Therefore, control unit 142 is transmitted control signal ES22 and is increased with enable to gain unit 131
Beneficial unit 131.
The judgement reason of above-mentioned switching working mode is, when the first signal S1 is a transmission signal, signal source is letter
The electronic installation connected by number processing system 10.And when the first signal S1 is a reception signal, signal source is signal transacting
A signal launch point outside system 10.In such event just it is found that the intensity when the first signal S1 is transmission signal is big
It is little, there should be considerable degree of difference with the intensity size when the first signal S1 is reception signal.That is, when the first signal
It will be intensity size when receiving signal much larger than the first signal S1 that S1 is intensity size when transmitting signal.Control unit 142
Just the first signal S1 can relatively be judged to receive signal or transmitting signal by subsignal SS2 and pre-set threshold value.
It is noted that the setting of the numerical values recited of pre-set threshold value includes many factors, predominantly the first signal S1
It is poor with the ratio between subsignal SS2, and conversion subsignal SS2 is quantization level when judging signal DS2
（quantization level）Fine degree.In addition to above-mentioned factor, each signal may be also must account for（Such as
One signal S1 and subsignal SS1, SS2 etc.）Power consumption when each path in system is transmitted.Therefore, pre-set threshold value is necessary
Its numerical values recited is set according to above-mentioned factor, and while is adjusted in view of actual situation about implementing.
Also there are many kinds of set-up modes by the mode of control signal ES21, ES22 enable gain unit 121,131.For example,
The power supply of gain unit 121,131 is controlled with control signal ES21, ES22, or in first path 120 and the second path 130
It is upper that switch, control signal ES21 or control signal ES22 for receiving enable gain unit 121 or gain unit 131 waiting are set
When, then turn on first path 120 or the second path 130.When control unit 142 transmits control signal ES21 enable gain unit
When 121, control unit 142 can be set while transmitting control signal ES22 forbidden energy gain unit 131（Control signal is for example set
ES21 and control signal ES22 inversion signal each other）.The present invention is not limited to above-mentioned set-up mode.
Referring again to Fig. 1, via above-mentioned start flow process, signal processing system 10 just can be in the way of self-sensing, root
According to transmission signal or the state of reception signal, the mode of operation of switching signal processing system 10.In the present embodiment, at signal
Reason system 10 is preset as reception pattern, receives the first signal S1 from antenna 200, via the gain unit 131 in the second path 130
After gain intensity, signaling point SIN is sent to by signal processing unit 110 and its electronic installation that connected in other groups
Part.Therefore, in the present embodiment, gain unit 131 is a low-noise amplifier（Low Noise Amplifier,LNA）,
While amplifying the first signal S1, the situation of low noise and low distortion is kept.
And when the first signal S1 flows into signal processing unit 110, that is, the first signal for transmission signal from signaling point SIN
When, circuit unit 140 judges to obtain signal processing system 10 through the subsignal SS2 being coupled out by signal processing unit 110
Transfer mode should be converted to.Gain unit 121 in 140 enable first path 120 of circuit unit, in the second path of forbidden energy 131
Gain unit 131 so that subsignal SS1（It is same as the first signal S1）The amplification of permeable gain unit 121, is resent to
Antenna 200.In the present embodiment, gain unit 121 is a power amplifier（Power Amplifier,PA）, for increasing son
Signal SS1（First signal S1）Signal strength signal intensity.As for the internal circuit configuration and set-up mode of power amplifier, the present invention is simultaneously
Do not limit.
By the current signal of 10 self-sensing of signal processing system（First signal S1）To transmit signal or receiving signal,
The mode of operation of switching signal processing system 10, signal processing system 10 just simultaneously can be in the mode of operations（Reception pattern or
Transfer mode）The lower gain for increasing signal.
According to the difference of actual conditions, gain unit 121 and gain unit 131 are also optionally implemented.Such as first
When signal S1 intensity itself sufficiently achieves the requirement of user, then gain unit need not be set in first path 120
121.When first path 120 is not provided with gain unit 121 or the second path 130 is not provided with gain unit 131, first path
120 or second path 130 then still respectively including one switch, be controlled signal ES21, ES22 control and turn on/cut off first
Path 120 or the second path 130.It is in the situation of some actual enforcements, strong as the signal of the first signal S1 for receiving signal
Degree is with the external device (ED) of enough rear ends（Other external modules that signaling point SIN is connected）With, but in the second path 130
Gain unit 131 be exaggerated intensity become with the close intensity of the first signal S1 as transmission signal.In such event,
Therefore circuit unit 140 just cannot may normally switch the both of which of the signal processing system 10（Reason for example, sentence by conversion
The quantization level of break signal DS2 is not fine etc. enough）.Therefore, present invention also offers following set-up mode is above-mentioned to avoid
Problem is produced.
Each component coupling relation in embodiment illustrated in fig. 3 is identical with embodiment illustrated in fig. 1, and in which not repeat.Wherein,
In embodiment illustrated in fig. 3 from unlike embodiment illustrated in fig. 1, in the embodiment shown in fig. 3, also include in the second path 130
Signal processing unit 132 and circuit unit 133.
Fig. 3 is refer to, signal processing unit 132 is coupled between antenna 200 and gain unit 131, is connect from antenna 200
Receive the first signal S1, process the first signal S1 and produce subsignal SS3, SS4, and transmit subsignal SS3 to gain unit 131 with
Gain the first signal S1.In the present embodiment, signal processing unit 132 couples the first signal S1 and produces subsignal SS4, and by the
One signal S1 is converted to subsignal SS3.That is, subsignal SS3 is identical with the first original signal S1, subsignal SS4 is then
There is the proportionate relationship in intensity with the first signal S1.
Circuit unit 133 couples signal processing unit 132 and gain unit 131, receives son from signal processing unit 132
Signal SS4, according to the enable that subsignal SS4 controls gain unit 131, for example, judges whether enable gain according to subsignal SS4
Unit 131.
When 133 enable gain unit 131 of circuit unit, gain unit 131 is according to preset gain value gain subsignal
SS3.Or, when gain unit 131 is according to the intensity of subsignal SS4, a yield value is determined, and according to above-mentioned yield value gain
Subsignal SS3.
Refer to Fig. 4, with embodiment illustrated in fig. 3 except that, embodiment illustrated in fig. 4 provide circuit unit 133,
140 more detailed embodiments.Fig. 4 is refer to, judging unit 1331 and control unit in circuit unit 133, is further comprises
1332.Judging unit 1331 receives subsignal SS4 from signal processing unit 132, and subsignal SS4 is converted to judgement signal
DS1.In the present embodiment, the intensity size conversion subsignal SS4 of 1331 corresponding subsignal SS4 of judging unit is to judge signal
DS1, and signal DS1 is judged then for a data signal, intensity size of its numerical value corresponding to subsignal SS4.
Control unit 1332 couples judging unit 1331, receives from judging unit 1331 and judges signal DS1, according to judgement letter
Number DS21 controls the enable of gain unit 131.In the present embodiment, control unit 1332 multilevel iudge signal DS1 and presets
Size between threshold values.When the numerical value for judging signal DS1 is more than pre-set threshold value, control unit 1332 then judges current first letter
Number S1（Or it is same as the subsignal SS3 of the first signal S1）Intensity reached by force, it is not necessary to increase through gain unit 131 again
Intensity.Therefore, control unit 1332 just transmits control signal ES1 to gain unit 131 with forbidden energy gain unit 131.
On the other hand, when the numerical value for judging signal DS1 is less than pre-set threshold value, control unit 1332 then judges current first
Signal S1（Or it is same as the subsignal SS3 of the first signal S1）Intensity it is excessively faint, the therefore just transmission control of control unit 1332
Signal ES1 processed is to gain unit 131 with enable gain unit 131.And each component coupling relation and work in circuit unit 133
Dynamic principle refer to embodiment illustrated in fig. 2, then not repeat at this.
In fact, in the present embodiment, signal processing unit 110 is identical with the start of signal processing unit 132, circuit list
The start of unit 140 and circuit unit 133 is also identical, only signal processing unit 110 and circuit unit 140, with circuit unit 132
It is different with effect of the circuit unit 133 in signal processing system 30.Circuit unit 140 controlled for signal processing system 30
Mode of operation（Transfer mode, reception pattern）Switching, and then for gain unit 131 cause controlled by circuit unit 133
Can, and control gain unit 131 is according to the yield value gain signal of how many sizes.
Even it should be noted that circuit unit 133 transmits control signal ES1 to gain unit 131 with forbidden energy gain
During unit 131, therefore the second path 130 also will not be cut off.And in some above-mentioned embodiments, by circuit unit
During 140 switching working mode, the situation of first path 120 or the second path 130 with the presence of disconnection.
In Fig. 3, embodiment illustrated in fig. 4, increase in the second path 130 and be provided with signal processing unit 132 and electricity
Road unit 133, when too strong as the first signal S1 intensity for receiving signal, forbidden energy gain unit 131 so that signal transacting system
System 20,30 is just can be avoided as the first signal S1 intensity and the first signal S1 as transmission signal for receiving signal（Or
First subsignal SS1）Similar intensity, and cause circuit unit 140 cannot correct switching signal processing system 20,30 two kinds of moulds
The situation of formula.
On the other hand, the present invention also provides a kind of signal processing system, and the transmitting-receiving for the wireless signal of two kinds of frequencies is entered
The enhanced effect of row.Fig. 5 is refer to, wherein to receive and dispatch the first signal SS1（Or subsignal SS1）Each unit, including signal
The coupling relation of processing unit 110, first path 120, the second path 130 and circuit unit 140 and start are referred to
Fig. 1～embodiment illustrated in fig. 3 is stated, in which not repeat.And to receive and dispatch secondary signal S2（Or subsignal SS5）Each unit,
Also above-mentioned Fig. 1～figure is referred to including signal processing unit 150, the 3rd path 160, the 4th path 170 and circuit unit 180
Embodiment shown in 3, will not be described here.
And except for the difference that, the frequency of the first signal S1 and secondary signal S2 is different.Such as the first signal S1 and second
Signal S2 can respectively meet wireless fidelity（Wireless Fidelity,WiFi）Standard, centre frequency be 2.4G hertz with
And the wireless network signal of 5G hertz, but the present invention is not limited to this.
Signal processing system 40 further comprises frequency separation unit 190,191.Frequency separation unit 190 is coupled at signal
Between reason unit 110,150 and signaling point SIN.Signal TS is transmitted when frequency separation unit 190 receives one from signaling point SIN（Example
Signaling point SIN is sent a signal to by wireless network module transmission one such as）, frequency separation unit 190 is i.e. using this transmission signal TS
Frequency（Centre frequency）To judge this transmission signal TS for the first signal S1 or secondary signal S2.When frequency separation unit
190 judge transmit signal TS for the first signal S1 when, then transmit the first signal S1 to signal processing unit 110.
When frequency separation unit 190 judges signal TS to be transmitted for secondary signal S2, then transmit secondary signal S2 to signal
Processing unit 150.On the other hand, when frequency separation unit 190 receives the first signal S1 from signal processing unit 110（Subsignal
SS1）When, the first signal S1 is sent to frequency separation unit 190 external device (ED) connected by signaling point SIN and signaling point SIN.
When frequency separation unit 190 receives secondary signal S2 from signal processing unit 150（Subsignal SS5）When, frequency separation unit 190
Also secondary signal S2 is sent to into signaling point SIN.
Frequency separation unit 191 is coupled in first path 120, the second path 130, the 3rd path 160 and the 4th path
Between 170 and antenna.When frequency separation unit 191 receives signal RS from antenna, frequency separation unit 191 utilizes this
Receive the frequency of signal RS（Centre frequency）To judge that this receives signal RS for the first signal S1 or secondary signal S2.Work as frequency
When separative element 191 judges signal RS to be received for the first signal S1, then transmit the first paths of signal S1 to second 130.Work as frequency
When separative element 190 judges signal RS to be transmitted for secondary signal S2, then transmit secondary signal S2 to the 4th path 170.
In fact, when frequency separation unit 191 judges to receive signal RS for the first signal S1, frequency separation unit 191
First signal S1 can be reached first path 120 and the second path 130 simultaneously.But as first path 120 is in signal transacting system
It is open circuit when system 40 is reception pattern, therefore the first signal S1 still can only passes through the second path 140.In the same manner, when frequency separation list
When unit 191 judges to receive signal RS for secondary signal S2, secondary signal S2 can be reached the 3rd tunnel by frequency separation unit 191 simultaneously
Footpath 150 and the 4th path 170.But as the 3rd path 120 is open circuit when signal processing system 40 is reception pattern, therefore the
Binary signal S2 still can only pass through the 4th path 170.
On the other hand, when frequency separation unit 191 receives the first signal S1 from first path 120（Subsignal SS1）When, frequency
First signal S1 is sent to antenna 200 by rate separative element 191.When frequency separation unit 191 receives second from the 3rd path 160
Signal S2（Subsignal SS5）When, secondary signal S2 is also sent to antenna 200 by frequency separation unit 191.
Therefore, the transmission/reception signal of two kinds of different frequencies is isolated by frequency separation unit 190,191, at signal
Reason system 40 just can with self-sensing and increase by two kinds of different center frequencies signal signal strength signal intensity.
If frequency separation unit 190,191 can isolate more multifrequency radio frequency signal, signal processing system
40 also in parallel between frequency separation unit 190,191 can be closed with the coupling of existing signal processing unit, path and circuit unit
It is identical signal processing unit, path and circuit unit, signal processing system 40 just may be used to process more centre frequencies
Different radio frequency signals.The present invention is not limited to above-mentioned.
In addition, the signal processing system 40 as shown in Figure 5 only ability with either simplex, that is to say, that when signal transacting system
When system 40 is operated, only have all the way with time first path 120, the second path 130, the 3rd path 160 and the 4th path 170
Footpath has signal to pass through, and comes the path of switched conductive through circuit unit 140,180.But, through frequency separation unit
190th, 191 redesign and other components and path adjustment with the wire of coupled components in front and back, signal processing system 40 can also
For the signal processing system of a multitask, the present invention is not limited to above-mentioned embodiment.
The present invention one provides a kind of signal processing method, it is adaptable to a signal processing system.Fig. 6 is refer to, first in step
During rapid S601, the first signal to the first signal processing unit is received, the first signal processing unit produces first according to the first signal
Subsignal and the second subsignal.Then, in step S602, the first subsignal of transmission is to first path.In step S603, also
It is that, when the first signal to a secondary signal processing unit is received from the second path, secondary signal processing unit produces the 3rd son letter
Number and the 4th subsignal.Then, in step S604, the 3rd subsignal to the first gain unit is transmitted with the first signal of gain,
And transmission the 4th subsignal to the first circuit unit, the first circuit unit is according to the 4th subsignal the first gain unit of control
Enable.The detailed implementation content of said method then can refer to the explanation of the embodiment of Fig. 1～Fig. 5, and in which not repeat.
It is noted that the present invention is not only defined in be arranged between antenna and wireless communication module, other
Similar concept, needs by the use of signal strength signal intensity to switch the setting of foundation as path, also can be using at signal provided by the present invention
Reason system.
Claims (23)
1. a kind of signal processing system, which is used for an antenna transmission signal, it is characterised in that the system is included：
One first signal processing unit, its receive one first signal and produce after first signal processing unit processes one first
Subsignal and one second subsignal；
One first path, one end of the first path receive first subsignal, the other end of the first path export this first
Subsignal is to the antenna；
One second path, the one end in second path receive first signal of the antenna transmission, the other end in second path
Export first signal of the antenna transmission；
Wherein, a secondary signal processing unit, one first gain unit and one first circuit list are included at least in second path
Unit, the secondary signal processing unit receive the first signal of second path reception and produce the secondary signal processing unit processes
One the 3rd subsignal afterwards and one the 4th subsignal, first gain unit receive the 3rd subsignal and believe to gain first
Number, after first circuit unit receives the 4th subsignal, control the enable of first gain unit；
Wherein, first circuit unit includes：One first judging unit, which couples the secondary signal processing unit, receive this
Four subsignals are simultaneously changed the 4th subsignal and judge signal into one first；One first control unit, it is single which couples first judgement
Unit, first judges signal according to this, controls the enable of first gain unit；First control unit compares first judgement
Size between signal and a predetermined threshold value, judges first signal to receive signal or transmission signal.
2. signal processing system according to claim 1, it is characterised in that second subsignal is by first signal transacting
Unit is separated or is coupled produced by first signal.
3. signal processing system according to claim 1, it is characterised in that the 4th subsignal is processed by the secondary signal
Unit is separated or is coupled produced by first signal.
4. signal processing system according to claim 1, it is characterised in that also include one second gain in the first path
Unit；And the system also includes a second circuit unit, which couples first signal processing unit, receives the second son letter
Number, enable first gain unit or second gain unit are judged whether according to second subsignal.
5. signal processing system according to claim 4, it is characterised in that the second circuit unit includes：
One second judging unit, which couples the secondary signal processing unit, receives second subsignal and changes the second son letter
Number signal is judged for one second；
One second control unit, which couples second judging unit, second judges signal according to this, decide whether enable this first
Gain unit or second gain unit.
6. signal processing system according to claim 4, it is characterised in that first gain unit includes that a low noise is put
Big device；And second gain unit includes a power amplifier.
7. signal processing system according to claim 1, it is characterised in that the system also includes：
One the 3rd signal processing unit, receives a secondary signal and produces one the 5th sub after the 3rd signal processing unit processes
Signal and one the 6th subsignal；
One the 3rd path, the one end in the 3rd path receive the 5th subsignal, and the other end in the 3rd path exports the 5th
Subsignal is to the antenna；
One the 4th path, the one end in the 4th path receive the secondary signal of the antenna transmission, and the other end in second path is defeated
Go out the secondary signal of the antenna transmission；
Wherein, one the 4th signal processing unit, one the 3rd gain unit and a tertiary circuit list are included at least in the 4th path
Unit, the 4th signal processing unit receive the secondary signal of the 4th path reception and produce the 4th signal processing unit processes
One the 7th subsignal afterwards and one the 8th subsignal, the 3rd gain unit receive the 7th subsignal and believe to gain second
Number, after the third circuit unit receives the 8th subsignal, control the enable of the 3rd gain unit.
8. signal processing system according to claim 7, it is characterised in that the system is also separated including a first frequency
Unit, which couples first signal processing unit and the 3rd signal processing unit, receives one from its exterior and transmits signal,
Judge that the transmission signal is first signal or the secondary signal according to the frequency of the transmission signal, when the transmission signal for this
During one signal, first signal is transmitted to first signal processing unit, and when the transmission signal is the secondary signal, pass
The secondary signal is given to the 3rd signal processing unit.
9. signal processing system according to claim 8, it is characterised in that the system also includes：
One second frequency separative element, which couples the first path, the second path, the 3rd path and the 4th path；
When signal is received from the antenna, according to the frequency of the reception signal, the second frequency separative element judges that this connects
The collection of letters number is first signal or the secondary signal, when the reception signal is first signal, the second frequency separative element
First signal is transmitted to second path, and when the reception signal is the secondary signal, the second frequency separative element
The secondary signal is transmitted to the 4th path；
And when the second frequency separative element receives first subsignal or the 5th from the first path or the 3rd path
During subsignal, the second frequency separative element transmits first subsignal or the 5th subsignal to the antenna.
10. signal processing system according to claim 7, it is characterised in that the 6th subsignal is by the 3rd signal
Reason unit is separated or is coupled produced by the secondary signal.
11. signal processing systems according to claim 7, it is characterised in that the 8th subsignal is by the 4th signal
Reason unit is separated or is coupled produced by the secondary signal.
12. signal processing systems according to claim 7, it is characterised in that the third circuit unit includes：
One the 3rd judging unit, which couples the 4th signal processing unit, receives the 8th subsignal and changes the 8th son letter
Number signal is judged for one the 3rd；
One the 3rd control unit, which couples the 3rd judging unit, judges signal according to the 3rd, decides whether enable the 3rd
Gain unit.
13. signal processing systems according to claim 7, it is characterised in that also increase including one the 4th in the 3rd path
Beneficial unit；And the system also includes one the 4th circuit unit, which couples the 3rd signal processing unit, receives the 6th son letter
Number, the 3rd gain unit of enable or the 4th gain unit are judged whether according to the 6th subsignal.
14. signal processing systems according to claim 13, it is characterised in that the 4th circuit unit includes：
One the 4th judging unit, which couples the 3rd signal processing unit, receives the 6th subsignal and changes the 6th son letter
Number signal is judged for one the 4th；
One the 4th control unit, which couples the 4th judging unit, judges signal according to the 4th, decides whether enable the 4th
Gain unit.
15. signal processing systems according to claim 13, it is characterised in that the 3rd gain unit includes a low noise
Amplifier；And the 4th gain unit include a power amplifier.
A kind of 16. signal processing methods a, it is adaptable to signal processing system, the wherein signal processing system include one first signal
Processing unit, sends a signal to an antenna through a first path, and receives signal from the antenna through one second path, its
In second path include one first gain unit and one first circuit unit, it is characterised in that methods described includes：
One first signal is received to first signal processing unit, first signal processing unit produces one according to first signal
First subsignal and one second subsignal；
First subsignal is transmitted to the first path；
When first signal is received to a secondary signal processing unit from second path, the secondary signal processing unit produces one
3rd subsignal and one the 4th subsignal；
The 3rd subsignal is transmitted to first gain unit with gain first signal, and transmits the 4th subsignal and extremely should
First circuit unit, first circuit unit control the enable of first gain unit according to the 4th subsignal；
Wherein, first circuit unit includes one first judging unit and one first control unit, first circuit unit according to
The step of 4th subsignal controls the enable of first gain unit includes：Transmit the 4th subsignal single to first judgement
Unit, the judging unit change the 4th subsignal and judge signal into one first；Transmit this first judge signal to this first control
Unit, first control unit first judge signal according to this, control the enable of first gain unit；
Wherein, first control unit compares first size judged between signal and a predetermined threshold value, judge this
One signal is reception signal or transmission signal.
17. signal processing methods according to claim 16, it is characterised in that first gain unit is with a default increasing
Benefit value, it is described according to the 4th subsignal control the first gain unit enable after the step of include：When the first gain list
After unit is enabled, first gain unit is according to the preset gain value gain first signal.
18. signal processing methods according to claim 16, it is characterised in that described according to the 4th subsignal control the
The step of after the enable of one gain unit, includes：
First gain unit determines a yield value according to a signal strength signal intensity of first signal and the 3rd subsignal；
First gain unit is according to the yield value gain first signal.
19. signal processing methods according to claim 16, it is characterised in that the signal processing system is also including one the
Also include one second gain unit in two circuit units, and the first path, described first signal processing unit foundation should
The step of first signal is produced after first subsignal and second subsignal also includes：
Second subsignal is transmitted to the second circuit unit；
The second circuit unit judges whether enable first gain unit or second gain unit according to second subsignal.
20. signal processing methods according to claim 16, it is characterised in that the signal processing system also includes one the 3rd
Signal processing unit, one the 3rd path and one the 4th path, at least include one the 4th signal transacting in wherein the 4th path
Unit, one the 3rd gain unit and a third circuit unit, methods described include：
A secondary signal to the 3rd signal processing unit is received, the 3rd signal processing unit produces one according to the secondary signal
5th subsignal and one the 6th subsignal；
The 5th subsignal is transmitted to the 3rd path；
When the secondary signal is received to the 4th signal processing unit from the 4th path, the 4th signal processing unit produces one
7th subsignal and one the 8th subsignal；
The 7th subsignal to the 3rd gain unit is transmitted with the gain secondary signal, and transmits the 8th subsignal and extremely should
Third circuit unit, the third circuit unit control the enable of the 3rd gain unit according to the 8th subsignal.
21. signal processing methods according to claim 20, it is characterised in that the 3rd gain unit is with a default increasing
Benefit value, it is described according to the 8th subsignal control the 3rd gain unit enable after the step of include：When the 3rd gain list
After unit is enabled, the 3rd gain unit is according to the preset gain value gain secondary signal.
22. signal processing methods according to claim 20, it is characterised in that described according to the 8th subsignal control the
The step of after the enable of three gain units, includes：
3rd gain unit determines a yield value according to a signal strength signal intensity of the secondary signal and the 7th subsignal；
3rd gain unit is according to the yield value gain secondary signal.
23. signal processing methods according to claim 20, it is characterised in that the signal processing system is also including one the
Also include one the 4th gain unit in four circuit units, and the 3rd path, the 3rd signal processing unit foundation should
The step of secondary signal is produced after the 5th subsignal and the 6th subsignal also includes：
The 6th subsignal is transmitted to the 4th circuit unit；
4th circuit unit judges whether the 3rd gain unit of enable or the 4th gain unit according to the 6th subsignal.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207918A (en) * | 2006-12-18 | 2008-06-25 | 启碁科技股份有限公司 | Stand-by communication device simultaneous for multi mobile communication systems |
| CN101359924A (en) * | 2007-08-01 | 2009-02-04 | 联发科技（美国）股份有限公司 | Radio frequency integrated circuit and transmit/receive switch |
| CN101471636A (en) * | 2007-12-26 | 2009-07-01 | 财团法人工业技术研究院 | Amplifier with variable gain and high dynamic range |
-
2013
- 2013-03-18 CN CN201310084700.9A patent/CN104065423B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207918A (en) * | 2006-12-18 | 2008-06-25 | 启碁科技股份有限公司 | Stand-by communication device simultaneous for multi mobile communication systems |
| CN101359924A (en) * | 2007-08-01 | 2009-02-04 | 联发科技（美国）股份有限公司 | Radio frequency integrated circuit and transmit/receive switch |
| CN101471636A (en) * | 2007-12-26 | 2009-07-01 | 财团法人工业技术研究院 | Amplifier with variable gain and high dynamic range |
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