CN107294557A - The RF front-end circuit and complete-machine coupling method of testing of mobile terminal - Google Patents
The RF front-end circuit and complete-machine coupling method of testing of mobile terminal Download PDFInfo
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- CN107294557A CN107294557A CN201610192775.2A CN201610192775A CN107294557A CN 107294557 A CN107294557 A CN 107294557A CN 201610192775 A CN201610192775 A CN 201610192775A CN 107294557 A CN107294557 A CN 107294557A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
The embodiments of the invention provide a kind of RF front-end circuit of mobile terminal and complete-machine coupling method of testing.The RF front-end circuit includes：Main collection antenna, diversity antenna, diversity antenna switch and the first power-sensing circuit.Diversity antenna receives the test signal of main collection antenna transmitting using the coupling effect between main collection antenna and diversity antenna；The input of diversity antenna switch is connected with diversity antenna, and for receiving test signal from diversity antenna, the output end of diversity antenna switch is used to export test signal to the first power-sensing circuit；First power-sensing circuit is used to carry out power detection to test signal, to realize the complete-machine coupling test to mobile terminal, so as to eliminate the dependence to comprehensive test instrument, hardware cost during reduction complete-machine coupling test.
Description
Technical field
The present invention relates to the communications field, and relate more specifically to a kind of mobile terminal in the communications field
RF front-end circuit and complete-machine coupling method of testing.
Background technology
The mobile terminals such as mobile phone, card of surfing Internet, data card are after the completion of complete machine production and assembly, it is necessary to carry out
Complete-machine coupling is tested, for verifying whether the radio communication function of mobile terminal is normal.Specifically,
Be verify mobile terminal whether radio-frequency enabled normal and antenna and mainboard between whether matched well.
When carrying out complete-machine coupling test, tested mobile terminal is set up with comprehensive test instrument by signaling or non-signaling and is connected,
By judging the transmission power of main collection antenna and the receiving power of diversity antenna, to judge tested mobile terminal
Radio communication function it is whether normal, whether antenna performance meets standard.
Complete-machine coupling test mainly use coupling plate in shielding box as the antenna of comprehensive test instrument and is tested
Mobile terminal is coupled, and is tested so as to set up non-signaling connection.Complete-machine coupling, which is surveyed, is divided into main collection day
Line complete-machine coupling is surveyed and the test of diversity antenna complete-machine coupling.
1st, the coupling measurement process of main collection antenna
Comprehensive test instrument parameter is configured, the test frequency of comprehensive test instrument corresponding frequency band is set, according to calibrated coupling
Loss value configures the pad value of comprehensive test instrument radio frequency (Radio Frequency, RF) passage.Then judge to treat
Survey whether mobile terminal and personal computer (Personal Computer, PC) can communicate, Yi Jishi
It is no to be in factory test mode (Factory Test Mode, FTM).Next corresponding session is started, so
Descending pilot frequency signaling is obtained afterwards, is switched to new test channel.And configure comprehensive during maximum transmission power test
Survey the parameter of instrument.The last maximum transmission power value that mobile terminal to be measured is read from comprehensive test instrument, judges whether
Meet test index scope, if met, terminate session, preserve test result.
2nd, the coupling measurement process of diversity antenna
Configure the RF channel attenuation values of comprehensive test instrument.Check whether mobile terminal port communication to be measured is normal,
The pattern for configuring mobile terminal to be measured is FTM patterns, and sets frequency range, test channel.Next set
Mobile terminal pattern to be measured is put for reception pattern, and opens the diversity passage of mobile terminal to be measured, is set low
Noise amplifier (Low Noise Amplifier, LNA) gain level is LNA0.Instrument is configured
Down channel and descending power be -80.0dBm after, from mobile terminal to be measured obtain receive automatic gain
(Automatic Gain Control, AGC) value is controlled, and conversion processing is receiving power, judging should
Whether performance number is in the range of test index.If do not met, failure is returned, test is exited, if
Meet, then switching off diversity passage.
But, when carrying out complete-machine coupling test using the above method, each complete-machine coupling test station needs
Comprehensive test instrument, PC and shielding box (containing coupling cramp) are equipped with, cost is higher.
The content of the invention
The embodiments of the invention provide a kind of RF front-end circuit of mobile terminal and complete-machine coupling test side
Method so that when carrying out complete-machine coupling test to mobile terminal, the dependence to comprehensive test instrument can be eliminated, from
And cost can be reduced.And the parallel detection to main collection antenna and diversity antenna can be realized, inspection is improved
Survey efficiency.
First aspect there is provided a kind of RF front-end circuit of mobile terminal, including：Main collection antenna, point
Collect antenna, diversity antenna switch and the first power-sensing circuit.
Diversity antenna receives main collection antenna transmitting using the coupling effect between main collection antenna and diversity antenna
Test signal.
The input of diversity antenna switch is connected with diversity antenna, for receiving test letter from diversity antenna
Number, the output end of diversity antenna switch is used to export test signal to the first power-sensing circuit.
First power-sensing circuit is used to carry out power detection to test signal, to determine the nothing of mobile terminal
Whether the performance of line communication function and main collection antenna and diversity antenna meets standard.
The RF front-end circuit of the mobile terminal of the embodiment of the present invention, it is not necessary to set by comprehensive test instrument etc. is outside
It is standby, it is only necessary to the test letter of the main collection antenna transmitting received to the diversity antenna in the RF front-end circuit
Number carry out power detection, it is possible to determine the radio communication function and main collection antenna and diversity of mobile terminal
Whether the performance of antenna meets standard, realizes the purpose of complete-machine coupling test.So as to reduce complete machine coupling
Close hardware cost during test.
On the other hand, launched by the main collection antenna received to the diversity antenna in the RF front-end circuit
Test signal carry out power detection, can realize to it is main collection antenna and diversity antenna parallel detection, carry
High detection efficiency.Also, when being tested due to complete-machine coupling, directly entered by the main diversity antenna of mobile terminal
Row coupling, it is not necessary to outside coupling plate, so as to eliminate conventional complete-machine coupling test due to outside coupling
The test error that plywood is brought.
With reference in a first aspect, in the first possible implementation of first aspect, RF front-end circuit
Coupler can also be included and switching is switched.
Coupler is located in the main collection RF front-end circuit in RF front-end circuit, before to main collection radio frequency
First communication traffic signal of terminal circuit transmitting is coupled, and obtains coupled signal.
The first input end of switching switch is used to receive test signal, and the second input of switching switch is used for
Coupled signal is received, the output end that switching switch is used for switching switch is defeated to the first power-sensing circuit
Go out test signal or coupled signal.
Now, the first power-sensing circuit can carry out power detection to test signal or coupled signal.
The RF front-end circuit of the mobile terminal of the embodiment of the present invention, can support test signal via main collection
After antenna transmitting, then by diversity antenna reception, and finally enter to the first power-sensing circuit.Both may be used
With the closed loop control realized (the first communication traffic signal) coupling firing of radiofrequency signal in mobile terminal and received
System, also can synchronously detect the watt level for the test signal that diversity antenna is received.Sent out in main collection antenna
Penetrate test signal power it is controllable and known under the premise of, be that can determine whether main collection by the first power-sensing circuit
The transmitting of antenna, the reception of diversity antenna, the exception of each link such as the isolation of main collection and diversity antenna is real
The purpose of existing complete-machine coupling test.
With reference to the above-mentioned possible implementation of first aspect, in second of possible realization of first aspect
In mode, the RF front-end circuit can also include coupler and the second power-sensing circuit.
Coupler is located in the main collection RF front-end circuit in RF front-end circuit, before to main collection radio frequency
First communication traffic signal of terminal circuit transmitting is coupled, and obtains coupled signal.
Second power-sensing circuit, power detection is carried out for receiving coupled signal, and to coupled signal.
The RF front-end circuit of the mobile terminal of the embodiment of the present invention, can support test signal via main collection
After antenna transmitting, then by diversity antenna reception, and finally enter to the first power-sensing circuit.Can
Radiofrequency signal in mobile terminal (the first communication traffic signal) coupling is enough realized by the second power-sensing circuit
Transmitting and the closed-loop control received are closed, also can synchronously detect that diversity antenna connects by the first power-sensing circuit
The watt level of the test signal received.Launch test signal power in main collection antenna controllable and known
Under the premise of, it is that can determine whether the main transmitting for collecting antenna by the first power-sensing circuit, the reception of diversity antenna,
The exception of each links such as the isolation of main collection and diversity antenna, realizes the purpose of complete-machine coupling test.
With reference to the above-mentioned possible implementation of first aspect, in the third possible realization of first aspect
In mode, diversity antenna switch also includes at least one second communication traffic signal output end, at least one
The diversity reception radio circuit output that second communication traffic signal output end is used for into RF front-end circuit
The second communication traffic signal that diversity antenna is received.
With reference to the above-mentioned possible implementation of first aspect, in the 4th kind of possible realization of first aspect
In mode, switching switch is single-pole double-throw switch (SPDT) or multithrow switch.
With reference to the above-mentioned possible implementation of first aspect, in the 5th kind of possible realization of first aspect
In mode, the first power-sensing circuit is high-power detection (High power Detect, HDET) circuit.
Second aspect includes any possibility of first aspect and first aspect there is provided a kind of mobile terminal
Implementation in RF front-end circuit.
There is provided a kind of complete-machine coupling method of testing of mobile terminal, complete-machine coupling test for the third aspect
Method is applied in the RF front-end circuit of mobile terminal, and the RF front-end circuit includes main collection antenna, point
Collect antenna, diversity antenna switch and the first power-sensing circuit, the input and diversity of diversity antenna switch
Antenna is connected, and the output end of diversity antenna switch is connected with the first power-sensing circuit, the complete machine coupling
Closing method of testing includes：Test signal is obtained, when wherein test signal is that mobile terminal enters test pattern
The signal of transmitting；The test signal of main collection antenna transmitting is received from diversity antenna；By test signal input point
Collect duplexer, and test signal is output to the first power-sensing circuit；Obtain the first power detection
Circuit carries out the result that power detection is obtained to test signal, to determine the radio communication function of mobile terminal
And whether the performance of main collection antenna and diversity antenna meets standard.
With reference to the third aspect, in the first of the third aspect in possible implementation, radio-frequency front-end electricity
Road can also include coupler and switching is switched, and coupler is located at before the main collection radio frequency in RF front-end circuit
In terminal circuit, main collection RF front-end circuit is used to launch communication traffic signal, and switching switch includes switching and opened
The output end that the first input end of pass, the second input of switching switch and switching are switched, switching switch
Output end is connected with first power-sensing circuit, and the complete-machine coupling method of testing can also include：
Obtain the coupled signal exported after coupler is coupled to communication traffic signal；Test signal input is cut
The first input end of switch is changed, coupled signal is inputted to the second input for switching switch, and test is believed
Number and coupled signal switch over output；Wherein, the test signal is output to the first power detection electricity
Road, including：The will be output to from the test signal or the coupled signal of the output end output of switching switch
One power-sensing circuit；Wherein, obtain first power-sensing circuit and power inspection is carried out to test signal
The result measured, including：The first power-sensing circuit is obtained to enter test signal or the coupled signal
The result that row power detection is obtained.
With reference to the above-mentioned possible implementation of the third aspect, in second of possible realization of the third aspect
In mode, the RF front-end circuit can also include coupler and the second power-sensing circuit, coupler position
In main collection RF front-end circuit in the RF front-end circuit, for main collection RF front-end circuit hair
The communication traffic signal penetrated is coupled, and obtains coupled signal, and the test of this method complete-machine coupling also includes：
Obtain the coupled signal exported after coupler is coupled to communication traffic signal；By coupled signal input the
Two power-sensing circuits；Obtain the second power-sensing circuit and the knot that power detection is obtained is carried out to coupled signal
Really.
The complete-machine coupling method of testing of the mobile terminal of the embodiment of the present invention, it is not necessary to outer by comprehensive test instrument etc.
Portion's equipment, it is only necessary to the survey of the main collection antenna transmitting received to the diversity antenna in the RF front-end circuit
Trial signal carry out power detection, it is possible to determine mobile terminal radio communication function and main collection antenna and
Whether the performance of diversity antenna meets standard, realizes the purpose of complete-machine coupling test.So as to reduce into
Hardware cost when row complete-machine coupling is tested.
On the other hand, launched by the main collection antenna received to the diversity antenna in the RF front-end circuit
Test signal carry out power detection, can realize to it is main collection antenna and diversity antenna parallel detection, carry
High detection efficiency.Also, when being tested due to complete-machine coupling, directly entered by the main diversity antenna of mobile terminal
Row coupling, it is not necessary to outside coupling plate, so as to eliminate conventional complete-machine coupling test due to outside coupling
The test error that plywood is brought.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to embodiment or existing skill
The accompanying drawing used required in art description is briefly described, it should be apparent that, drawings in the following description
It is some embodiments of the present invention, for those of ordinary skill in the art, is not paying creative labor
On the premise of dynamic, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic frame of the RF front-end circuit of mobile terminal according to an embodiment of the invention
Figure.
Fig. 2 is the schematic frame of the RF front-end circuit of mobile terminal according to another embodiment of the present invention
Figure.
Fig. 3 is the schematic frame of the RF front-end circuit of mobile terminal according to an embodiment of the invention
Figure.
Fig. 4 is the schematic frame of the RF front-end circuit of mobile terminal according to an embodiment of the invention
Figure.
Fig. 5 is the schematic frame of the RF front-end circuit of mobile terminal according to an embodiment of the invention
Figure.
Fig. 6 is the signal of the complete-machine coupling method of testing of mobile terminal according to an embodiment of the invention
Property flow chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making wound
The every other embodiment obtained under the premise of the property made work, belongs to the scope of protection of the invention.
It should be noted that in following description, in two element connections, the two elements can be directly connected to,
Can also indirectly it be connected by one or more intermediary elements or medium.The mode of two element connections can
Including the way of contact or cordless, or it may include wired mode or wireless mode.Art technology
Personnel can carry out equivalencing or modification to example described below connection, and such substitution or modification is equal
Fall within the scope of the present invention.
It should be understood that the RF front-end circuit of mobile terminal is applicable to support according to an embodiment of the invention
In the mobile terminal of main collection diversity double antenna.Specifically, diversity antenna technology is utilized in wireless propagation environment
Incoherent feature between the independent sample of same signal, reception is improved using certain signal folding
Signal, to resist the harmful effect of decline.Moved in fact, diversity antenna technology has become 3G and 4G
The standard configuration of mobile communication terminal.In realization, main collection antenna is responsible for signal transmitting and main collection is received, point
Collection antenna is responsible for the diversity reception of signal.
Fig. 1 is the schematic frame of the RF front-end circuit of mobile terminal according to an embodiment of the invention
Figure.Mobile terminal in the embodiment of the present invention can be mobile phone, card of surfing Internet, data card etc..Before the radio frequency
Terminal circuit includes main collection antenna 110, diversity antenna 120, diversity antenna switch 130 and the first power detection
Circuit 140.
Main collection antenna 110 is used for the transmitting of radiofrequency signal (such as test signal), i.e., by RF front-end circuit
Main collection RF front-end circuit in conduction radiofrequency signal be converted to electromagnetic wave.
Diversity antenna 120 receives master using the coupling effect between main collection antenna 110 and diversity antenna 120
Collect the test signal that antenna 110 is launched.
Test signal can be the letter that mobile terminal enters the predetermined power launched during test pattern, i.e. FTM
Number, for example can be the signal that mobile terminal is in that main collection antenna 110 is launched during non-signaling working condition.
Diversity antenna 120 can receive the signal for the predetermined power that main collection antenna 110 is launched.
Diversity antenna switch 130 includes input and output end.Input can be with the phase of diversity antenna 120
Connection, and receive test signal from diversity antenna 120.Output end is defeated to the first power-sensing circuit 130
Go out test signal.
Alternatively, diversity antenna switch 130 can also include the output of at least one second communication traffic signal
End, the diversity reception that at least one second communication traffic signal output end is used for into RF front-end circuit is penetrated
The second communication traffic signal that frequency circuit output diversity antenna is received.
When second communication traffic signal can be that mobile terminal is in normal operating conditions (non-test, mode)
The signal for the network side transmitting that diversity antenna 120 is received.Mobile terminal, such as mobile phone, in normal
During working condition, at a time diversity antenna 120 can receive the signal of a certain power of Base Transmitter,
And one of them corresponding output of 130 the second communication traffic signal output end can be switched by diversity
End exports the signal.
The test signal that first power-sensing circuit 130 can switch 130 outputs to diversity antenna carries out work(
Rate is detected, to determine that the radio communication function of mobile terminal and the performance of main collection antenna and diversity antenna be
It is no to meet standard.
Specifically, the test signal launched by the main collection antenna 110 received to diversity antenna 120 is entered
Row power detection, can obtain corresponding measurement result.By comparing the measurement result and the test signal
Transmission power, it can be determined that the transmission power of main collection antenna 110 and the receiving power of diversity antenna 120
It is whether normal, and then the radio communication function and main collection antenna 110 and diversity of mobile terminal can be determined
Whether the performance of antenna 120 meets standard.
The RF front-end circuit of the mobile terminal of the embodiment of the present invention, it is not necessary to set by comprehensive test instrument etc. is outside
It is standby, it is only necessary to the test letter of the main collection antenna transmitting received to the diversity antenna in the RF front-end circuit
Number carry out power detection, it is possible to determine the radio communication function and main collection antenna and diversity of mobile terminal
Whether the performance of antenna meets standard, realizes the purpose of complete-machine coupling test.So as to reduce complete machine coupling
Close hardware cost during test.
On the other hand, launched by the main collection antenna received to the diversity antenna in the RF front-end circuit
Test signal carry out power detection, can realize to it is main collection antenna and diversity antenna parallel detection, carry
High detection efficiency.Also, when being tested due to complete-machine coupling, directly entered by the main diversity antenna of mobile terminal
Row coupling, it is not necessary to outside coupling plate, so as to eliminate conventional complete-machine coupling test due to outside coupling
The test error that plywood is brought.
Alternatively, as shown in Fig. 2 the RF front-end circuit can also include coupler 150 and switching is opened
Close 160.
Coupler 150, in main collection RF front-end circuit, for main collection RF front-end circuit transmitting
The first communication traffic signal coupled, obtain coupled signal.
When first communication traffic signal can be that mobile terminal is in normal operating conditions (non-test, mode)
The signal of main collection antenna transmitting.
It should be understood that when mobile terminal is in test pattern, coupler 150 does not work or test not believed
Number handled.
Switching switch 160, the first input end of switching switch is used to receive test signal, switching switch
Second input switches switch for switching the output end switched to first for receiving coupled signal
Power-sensing circuit exports test signal or coupled signal.
Switching switch 160 can be single-pole double-throw switch (SPDT) or multithrow switch.Mobile terminal is in test mould
Under formula, switching switch can export test signal.Mobile terminal is under normal operating conditions, and switching is opened
Pass can be with output coupling signal.
First power-sensing circuit 140 specifically for：Power detection is carried out to test signal or coupled signal.
Alternatively, the first power-sensing circuit 140 can be HDET circuits.
HDET is the standard configuration technology of 3G, 4G mobile communication terminal, for detecting and controlling transmission power
Size so that accomplish communication up-downgoing close-loop power control, with the maximization of supporting network capacity.
It realizes to be exactly to increase power coupler in transmitting path, is output to after transmission power is coupled
HDET power-sensing circuits are detected, and according to the adjustment of testing result closed-loop control transmission power.
In the embodiment of the present invention, coupler 150 can be directional coupler, it is possible to achieve above-mentioned power
The effect of coupler, you can be output to HDET power-sensing circuits after transmission power is coupled, for example
First power-sensing circuit 140, carries out power detection, and according to testing result closed-loop control transmission power
Adjustment.
Therefore, the RF front-end circuit of the mobile terminal of the embodiment of the present invention, can support test signal to pass through
Receive, and finally entered to the first power-sensing circuit after main collection antenna transmitting, then by diversity antenna.
Both (the first communication traffic signal) coupling firing of radiofrequency signal in mobile terminal and closing for receiving can have been realized
Ring is controlled, and also can synchronously detect the watt level for the test signal that diversity antenna is received.In main collection antenna
It is that can determine whether by the first power-sensing circuit under the premise of launched test signal power is controllable and known
The transmitting of main collection antenna, the reception of diversity antenna, the exception of each link such as the isolation of main collection and diversity antenna,
Realize the purpose of complete-machine coupling test.
Alternatively, as shown in figure 3, the RF front-end circuit can also include the work(of coupler 170 and second
Rate detects circuit 180.
Coupler 170 can be above-mentioned coupler 150, will not be repeated here.
Second power-sensing circuit 180, can be used for receiving coupled signal, and carry out work(to coupled signal
Rate is detected.
Specifically, RF front-end circuit can include two power-sensing circuits, i.e. the first power detection electricity
The power-sensing circuit 180 of road 140 and second.The input of first power-sensing circuit 140 can be with dividing
The output end of collection duplexer is connected, and the test signal that 130 outputs can be switched to diversity antenna is carried out
Power detection, to determine the radio communication function of mobile terminal and the performance of main collection antenna and diversity antenna
Whether standard is met.Second power-sensing circuit 180 can receive the coupled signal of the output of coupler 170,
Power detection is carried out to coupled signal, radiofrequency signal coupling firing and the closed loop received in mobile terminal is realized
Control.
That is, mobile terminal is under test pattern, that is, when carrying out complete-machine coupling test, the first work(
Rate detection circuit 140 is in running order, and the second power-sensing circuit 180 is in off working state.Move
Dynamic terminal is under normal operating conditions, and the second power-sensing circuit 180 is in running order, the first work(
Rate detection circuit 140 is in off working state.
The RF front-end circuit of the mobile terminal of the embodiment of the present invention, can support test signal via main collection
After antenna transmitting, then by diversity antenna reception, and finally enter to the first power-sensing circuit.Can
Radiofrequency signal in mobile terminal (the first communication traffic signal) coupling is enough realized by the second power-sensing circuit
Transmitting and the closed-loop control received are closed, also can synchronously detect that diversity antenna connects by the first power-sensing circuit
The watt level of the test signal received.Launch test signal power in main collection antenna controllable and known
Under the premise of, it is that can determine whether the main transmitting for collecting antenna by the first power-sensing circuit, the reception of diversity antenna,
The exception of each links such as the isolation of main collection and diversity antenna, realizes the purpose of complete-machine coupling test.
With reference to Fig. 4 and Fig. 5, the radio-frequency front-end of the mobile terminal of embodiments of the invention is described in detail
Circuit.
As shown in figure 4, when mobile terminal is in test pattern, main collection RF front-end circuit can be produced
Test signal, and the test signal is launched by main collection antenna 210.By the coupling of main divided antenna, survey
Trial signal inputs diversity antenna switch 230 by diversity antenna 220, and by the defeated of diversity antenna switch 230
Go out one of input port of passage n+1 input switchings switch 240.Non-test is in mobile terminal
During pattern, main collection RF front-end circuit can produce the first communication traffic signal, in RF front-end circuit
The coupled signal of first communication traffic signal, i.e. coupled signal are exported via coupler 250.The coupling
Signal can input another input port of switching switch 240.When mobile terminal is in test pattern,
Switching switch 240 exports test signal, and the test signal is inputted into HDET power-sensing circuits 260,
Power detection is carried out to test signal by HDET power-sensing circuits 260, to determine the nothing of mobile terminal
Whether the performance of line communication function and main collection antenna and diversity antenna meets standard.It is in mobile terminal
During non-test, mode, switching 240 output coupling signals of switch, and the test signal is inputted into HDET work(
Rate detects circuit 260, and power detection is carried out to coupled signal by HDET power-sensing circuits 260, with
Realize radiofrequency signal coupling firing and the closed-loop control received in mobile terminal.
On the other hand, when mobile terminal is in non-test, mode, diversity antenna 220 can also receive example
Such as base station network side send the second communication traffic signal, second communication traffic signal can via point
Collect one of passage input diversity reception radio circuit in 1~passage of passage n of duplexer 230,
Second communication traffic signal is handled by diversity reception radio circuit.
It should be understood that HDET power-sensing circuits 260 can be the first above-mentioned power-sensing circuit 140,
Can also be the second above-mentioned power-sensing circuit 180, this is not limited by the present invention.
Fig. 5 is the RF front-end circuit of mobile terminal according to another embodiment of the present invention.
As shown in figure 5, when mobile terminal is in test pattern, main collection RF front-end circuit can be produced
Test signal, and the test signal is launched by main collection antenna 310.By the coupling of main divided antenna, survey
Trial signal inputs diversity antenna switch 330 by diversity antenna 320, and by the defeated of diversity antenna switch 330
Go out passage n+1 input HDET power-sensing circuits 340.And by 340 pairs of HDET power-sensing circuits
Test signal carries out power detection, to determine the radio communication function and main collection antenna of mobile terminal and divide
Whether the performance of collection antenna meets standard.When mobile terminal is in non-test, mode, main collection radio-frequency front-end
Circuit can produce the first communication traffic signal, should via the output of coupler 360 in RF front-end circuit
The coupled signal of first communication traffic signal, i.e. coupled signal.The coupled signal can input HDET work(
Rate detects circuit 350, and power detection is carried out to coupled signal by HDET power-sensing circuits 350, with
Realize radiofrequency signal coupling firing and the closed-loop control received in mobile terminal.
On the other hand, when mobile terminal is in non-test, mode, diversity antenna 320 can also receive example
Such as base station network side send the second communication traffic signal, second communication traffic signal can via point
Collect one of passage input diversity reception radio circuit in 1~passage of passage n of duplexer 330,
The signal is handled by diversity reception radio circuit.
Before the radio frequency that the mobile terminal of embodiments of the invention is described in detail above in conjunction with Fig. 1 to Fig. 5
Terminal circuit.The complete-machine coupling method of testing of the mobile terminal of the embodiment of the present invention is described with reference to Fig. 6.
Complete-machine coupling method of testing shown in Fig. 6 can be as shown in Figure 1 RF front-end circuit realize.
610, test signal is obtained, wherein the test signal, which is the mobile terminal, enters test pattern
When the signal launched.
When the complete-machine coupling for moving terminal is tested, mobile terminal can be positioned over screening arrangement
In, meet under certain condition, the screening arrangement can also be saved.And pass through wired or wireless way and control
End, sets up control connection such as PC.Control end can control mobile terminal to enter test pattern
And launch predetermined power signal, i.e. test signal.
620, the test signal of the main collection antenna transmitting is received from the diversity antenna.
630, the test signal is inputted into the diversity antenna and switched, and the test signal is defeated
Go out to first power-sensing circuit.
640, obtain first power-sensing circuit and carry out what power detection was obtained to the test signal
As a result, to determine the radio communication function and the main collection antenna and the diversity day of the mobile terminal
Whether the performance of line meets standard.
Test signal is coupled by main collection antenna transmitting through main divided antenna, is switched by diversity antenna, defeated
Enter to the first power-sensing circuit.First power-sensing circuit carries out power detection to the test signal,
And testing result is reported into mobile terminal, mobile terminal then reports control end, and control end is according to
The data of calibration verification are as criterion, whether succeeding for complete-machine coupling test judged, that is, determine to move
Whether the radio communication function of dynamic terminal and the performance of main collection antenna and diversity antenna meet standard.
The complete-machine coupling method of testing of the mobile terminal of the embodiment of the present invention, it is not necessary to outer by comprehensive test instrument etc.
Portion's equipment, it is only necessary to the survey of the main collection antenna transmitting received to the diversity antenna in the RF front-end circuit
Trial signal carry out power detection, it is possible to determine mobile terminal radio communication function and main collection antenna and
Whether the performance of diversity antenna meets standard, realizes the purpose of complete-machine coupling test.So as to reduce into
Hardware cost when row complete-machine coupling is tested.
On the other hand, launched by the main collection antenna received to the diversity antenna in the RF front-end circuit
Test signal carry out power detection, can realize to it is main collection antenna and diversity antenna parallel detection, carry
High detection efficiency.Also, when being tested due to complete-machine coupling, directly entered by the main diversity antenna of mobile terminal
Row coupling, it is not necessary to outside coupling plate, so as to eliminate conventional complete-machine coupling test due to outside coupling
The test error that plywood is brought.
610,620,630, the 640 of Fig. 6 may be referred to Fig. 1 corresponding device, circuit or equipment
Operation and function.Exemplified by avoid repeat, will not be repeated here.
Alternatively, when the RF front-end circuit of complete-machine coupling method of testing as shown in Figure 2 is to realize,
The complete-machine coupling method of testing can also include：Obtain defeated after coupler is coupled to communication traffic signal
The coupled signal gone out；Test signal is inputted to the first input end of the switching switch, coupled signal is defeated
Enter the second input of switching switch, and output is switched over to test signal and coupled signal；Wherein,
In 630, the can will be output to from the test signal or coupled signal of the output end output of switching switch
One power-sensing circuit；In 640, the first power-sensing circuit can be obtained to test signal or coupling
Signal carries out the result that power detection is obtained.
It should be understood that communication traffic signal can be above-mentioned first communication traffic signal.
In above-mentioned complete-machine coupling method of testing each step may be referred to Fig. 2 corresponding device, circuit or
The operation of equipment and function.Exemplified by avoid repeat, will not be repeated here.
Alternatively, when the RF front-end circuit of complete-machine coupling method of testing as shown in Figure 3 is to realize,
The complete-machine coupling method of testing can also include：The coupler is obtained to couple communication traffic signal
The coupled signal exported afterwards；The coupled signal is inputted into second power-sensing circuit；Obtain described
Second power-sensing circuit carries out the result that power detection is obtained to the coupled signal.
In above-mentioned complete-machine coupling method of testing each step may be referred to Fig. 3 corresponding device, circuit or
The operation of equipment and function.Exemplified by avoid repeat, will not be repeated here.
The complete-machine coupling method of testing of the mobile terminal of the embodiment of the present invention, it is not necessary to outer by comprehensive test instrument etc.
Portion's equipment, it is only necessary to the survey of the main collection antenna transmitting received to the diversity antenna in the RF front-end circuit
Trial signal carry out power detection, it is possible to determine mobile terminal radio communication function and main collection antenna and
Whether the performance of diversity antenna meets standard, realizes the purpose of complete-machine coupling test.So as to reduce into
Hardware cost when row complete-machine coupling is tested.
On the other hand, launched by the main collection antenna received to the diversity antenna in the RF front-end circuit
Test signal carry out power detection, can realize to it is main collection antenna and diversity antenna parallel detection, carry
High detection efficiency.Also, when being tested due to complete-machine coupling, directly entered by the main diversity antenna of mobile terminal
Row coupling, it is not necessary to outside coupling plate, so as to eliminate conventional complete-machine coupling test due to outside coupling
The test error that plywood is brought.Those of ordinary skill in the art are it is to be appreciated that with reference to disclosed herein
Embodiment description each example device, circuit or equipment and associative operation, can with electronic hardware,
Or the combination of computer software and electronic hardware is realized.These functions are actually with hardware or software side
Formula is performed, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can be with
Described function is realized using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
It is apparent to those skilled in the art that, it is for convenience and simplicity of description, above-mentioned to retouch
The specific work process of system, device and the unit stated, may be referred to the correspondence in preceding method embodiment
Process, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can be realized by another way.For example, device embodiment described above is only to show
Meaning property, for example, the division of the unit, only a kind of division of logic function can when actually realizing
To there is other dividing mode, such as multiple units or component can combine or be desirably integrated into another
System, or some features can be ignored, or not perform.It is another, it is shown or discussed each other
Coupling or direct-coupling or communication connection can be the INDIRECT COUPLING of device or unit by some interfaces
Or communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, make
It can be for the part that unit is shown or may not be physical location, you can with positioned at a place,
Or can also be distributed on multiple NEs.Can select according to the actual needs part therein or
Person's whole units realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit
In or unit be individually physically present, can also two or more units be integrated in one
In individual unit.
If the function is realized using in the form of SFU software functional unit and as independent production marketing or made
Used time, it can be stored in a computer read/write memory medium.Understood based on such, the present invention
The part that is substantially contributed in other words to prior art of technical scheme or the technical scheme portion
Dividing can be embodied in the form of software product, and the computer software product is stored in a storage medium
In, including some instructions to cause a computer equipment (can be personal computer, server,
Or the network equipment etc.) perform all or part of step of each embodiment methods described of the invention.And it is preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can
With the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
In this, any one skilled in the art the invention discloses technical scope in, can be easily
Expect change or replacement, should all be included within the scope of the present invention.Therefore, protection of the invention
Scope described should be defined by scope of the claims.
It should be understood that in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not intended to
The priority of execution sequence, the execution sequence of each process should be determined with its function and internal logic, without answering
Implementation process to the embodiment of the present invention constitutes any limit.
Claims (10)
1. a kind of RF front-end circuit of mobile terminal, it is characterised in that including：
Main collection antenna, diversity antenna, diversity antenna switch and the first power-sensing circuit；
The diversity antenna is received using the coupling effect between the main collection antenna and the diversity antenna
The test signal of the main collection antenna transmitting；
The input of diversity antenna switch is connected with the diversity antenna, for from diversity day
Line receives the test signal, and the output end of the diversity antenna switch is used for first power detection
Test signal described in circuit output；
First power-sensing circuit is used to carry out power detection to the test signal, described to determine
Whether the performance of the radio communication function of mobile terminal and the main collection antenna and the diversity antenna accords with
Standardization.
2. RF front-end circuit as claimed in claim 1, it is characterised in that the radio-frequency front-end electricity
Road also includes：
Coupler, the coupler is located in the main collection RF front-end circuit in the RF front-end circuit,
Coupled for the first communication traffic signal to the main collection RF front-end circuit transmitting, obtain coupling
Signal；
Switching switch, the first input end of the switching switch is used to receive the test signal, described to cut
Changing the second input of switch is used to receive the coupled signal, and the switching is switched for switching described cut
The output end for changing switch exports the test signal or coupling letter to first power-sensing circuit
Number；
Wherein, first power-sensing circuit specifically for：
Power detection is carried out to the test signal or the coupled signal.
3. RF front-end circuit as claimed in claim 1, it is characterised in that the radio-frequency front-end electricity
Road also includes：
Coupler, the coupler is located in the main collection RF front-end circuit in the RF front-end circuit,
Coupled for the first communication traffic signal to the main collection RF front-end circuit transmitting, obtain coupling
Signal；
Second power-sensing circuit, work(is carried out for receiving the coupled signal, and to the coupled signal
Rate is detected.
4. RF front-end circuit as claimed any one in claims 1 to 3, it is characterised in that institute
Stating diversity antenna switch also includes at least one second communication traffic signal output end, it is described at least one the
The diversity reception radio circuit that two communication service signal output parts are used for into the RF front-end circuit is defeated
Go out the second communication traffic signal that the diversity antenna is received.
5. RF front-end circuit as claimed in claim 2, it is characterised in that the switching, which is switched, is
Single-pole double-throw switch (SPDT) or multithrow switch.
6. the RF front-end circuit as any one of claim 1 to 5, it is characterised in that institute
The first power-sensing circuit is stated for high-power detection HEDT circuits.
7. a kind of mobile terminal, it is characterised in that including as any one of claim 1 to 6
RF front-end circuit.
8. the complete-machine coupling method of testing of a kind of mobile terminal, it is characterised in that the complete-machine coupling is surveyed
Method for testing is applied in the RF front-end circuit of the mobile terminal, and the RF front-end circuit includes main collection
Antenna, diversity antenna, diversity antenna switch and the first power-sensing circuit, the diversity antenna switch
Input is connected with the diversity antenna, the output end and first power of the diversity antenna switch
Detection circuit is connected, and the complete-machine coupling method of testing includes：
Test signal is obtained, wherein the test signal is launched when entering test pattern for the mobile terminal
Signal；
The test signal of the main collection antenna transmitting is received from the diversity antenna；
The test signal is inputted into the diversity antenna switch, and the test signal is output to institute
State the first power-sensing circuit；
Obtain first power-sensing circuit and the result that power detection is obtained carried out to the test signal,
To determine the radio communication function and the main collection antenna and the diversity antenna of the mobile terminal
Whether performance meets standard.
9. complete-machine coupling method of testing as claimed in claim 8, it is characterised in that before the radio frequency
Terminal circuit also includes coupler and switching is switched, and the coupler is located at the master in the RF front-end circuit
Collect in RF front-end circuit, the main collection RF front-end circuit is used to launch communication traffic signal, described to cut
Change the second input and described that switch includes the first input end of the switching switch, the switching is switched
Switch the output end of switch, the output end of the switching switch is connected with first power-sensing circuit
Connect, the complete-machine coupling method of testing also includes：
Obtain the coupled signal exported after the coupler is coupled to the communication traffic signal；
The test signal is inputted to the first input end of the switching switch, the coupled signal is inputted
Second input of the switching switch, and the test signal and the coupled signal are switched over defeated
Go out；
Wherein, it is described that the test signal is output to first power-sensing circuit, including：
It will be exported from the test signal or the coupled signal of the output end output of the switching switch
To first power-sensing circuit；
Wherein, acquisition first power-sensing circuit is obtained to test signal progress power detection
The result arrived, including：
Obtain first power-sensing circuit and power is carried out to the test signal or the coupled signal
Detect obtained result.
10. complete-machine coupling method of testing as claimed in claim 8, the RF front-end circuit also includes
Coupler and the second power-sensing circuit, the main collection that the coupler is located in the RF front-end circuit are penetrated
In frequency front-end circuit, the main collection RF front-end circuit is used to launch communication traffic signal, the complete machine coupling
Closing method of testing also includes：
Obtain the coupled signal exported after the coupler is coupled to the communication traffic signal；
The coupled signal is inputted into second power-sensing circuit；
Obtain second power-sensing circuit and the result that power detection is obtained is carried out to the coupled signal.
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| CN201610192775.2A CN107294557B (en) | 2016-03-30 | 2016-03-30 | Radio frequency front-end circuit and complete machine coupling test method of mobile terminal |
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| CN108111236A (en) * | 2017-12-28 | 2018-06-01 | 上海传英信息技术有限公司 | A kind of computer readable storage medium and test system for antenna measurement |
| CN110098840A (en) * | 2019-04-30 | 2019-08-06 | 维沃移动通信有限公司 | A kind of radio-frequency unit and terminal device |
| CN111654341A (en) * | 2020-05-29 | 2020-09-11 | 北京小米移动软件有限公司 | Method, device, equipment and storage medium for testing wireless communication equipment |
| CN112217583A (en) * | 2020-10-13 | 2021-01-12 | 北京电子工程总体研究所 | Embedded self-checking system and method for on-orbit wireless communication equipment |
| CN112311930A (en) * | 2020-11-24 | 2021-02-02 | 惠州Tcl移动通信有限公司 | Terminal testing method and device, storage medium and mobile terminal |
| CN112532287A (en) * | 2020-11-17 | 2021-03-19 | 广州技象科技有限公司 | Communication relay selection method and device for terminal of Internet of things |
| CN112584413A (en) * | 2020-11-13 | 2021-03-30 | 普联国际有限公司 | Wireless communication link self-checking protection method, device, equipment and storage medium |
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| CN113765533A (en) * | 2021-07-19 | 2021-12-07 | 上海闻泰信息技术有限公司 | Antenna detection method and device, electronic equipment and storage medium |
| CN113824511A (en) * | 2021-08-24 | 2021-12-21 | 上海闻泰信息技术有限公司 | Detection method and device for diversity antenna, electronic equipment and storage medium |
| CN114325340A (en) * | 2021-12-31 | 2022-04-12 | 南京矽典微***有限公司 | Test system and test method of radio frequency chip |
| CN114826441A (en) * | 2018-12-04 | 2022-07-29 | 三星电子株式会社 | Antenna module |
| CN116760484A (en) * | 2023-08-22 | 2023-09-15 | 北京唯得科技有限公司 | Test system, method, medium and equipment of TDD system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108111236A (en) * | 2017-12-28 | 2018-06-01 | 上海传英信息技术有限公司 | A kind of computer readable storage medium and test system for antenna measurement |
| CN114826441A (en) * | 2018-12-04 | 2022-07-29 | 三星电子株式会社 | Antenna module |
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| CN112532287A (en) * | 2020-11-17 | 2021-03-19 | 广州技象科技有限公司 | Communication relay selection method and device for terminal of Internet of things |
| CN112311930A (en) * | 2020-11-24 | 2021-02-02 | 惠州Tcl移动通信有限公司 | Terminal testing method and device, storage medium and mobile terminal |
| CN113765533A (en) * | 2021-07-19 | 2021-12-07 | 上海闻泰信息技术有限公司 | Antenna detection method and device, electronic equipment and storage medium |
| CN113765533B (en) * | 2021-07-19 | 2023-07-04 | 上海闻泰信息技术有限公司 | Antenna detection method and device, electronic equipment and storage medium |
| CN113824511A (en) * | 2021-08-24 | 2021-12-21 | 上海闻泰信息技术有限公司 | Detection method and device for diversity antenna, electronic equipment and storage medium |
| CN114325340A (en) * | 2021-12-31 | 2022-04-12 | 南京矽典微***有限公司 | Test system and test method of radio frequency chip |
| CN114325340B (en) * | 2021-12-31 | 2024-01-19 | 南京矽典微***有限公司 | Test system and test method of radio frequency chip |
| CN116760484A (en) * | 2023-08-22 | 2023-09-15 | 北京唯得科技有限公司 | Test system, method, medium and equipment of TDD system |
| CN116760484B (en) * | 2023-08-22 | 2023-10-17 | 北京唯得科技有限公司 | Test system, method, medium and equipment of TDD system |
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