CN106533455A - Antenna switching system and switching method - Google Patents
Antenna switching system and switching method Download PDFInfo
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- CN106533455A CN106533455A CN201610836796.3A CN201610836796A CN106533455A CN 106533455 A CN106533455 A CN 106533455A CN 201610836796 A CN201610836796 A CN 201610836796A CN 106533455 A CN106533455 A CN 106533455A
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- Prior art keywords
- antenna
- chip
- diversity
- over switch
- control signal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
The invention discloses an antenna switching system and method. The antenna switching system is applied to a mobile terminal. The system comprises a chip module, an antenna switching switch and an antenna module. The chip module comprises a first chip and a second chip. The first chip and the second chip receive and/or transmit signals through the antenna module. The antenna module comprises a main set antenna and a diversity antenna. The antenna switching switch is connected with the antenna module, and is used for controlling the switching between the main set antenna and the diversity antenna according to the control signal of the first chip. According to the invention, the problem that dual mobile terminal chips cannot coordinate the control of the antenna switching switch can be effectively solved, and the speech call performance and the network performance of the mobile terminal can be ensured.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of antenna switching system and changing method.
Background technology
The antenna design of the non-all-metal mobile phone of tradition is lower antenna as main collection dual-mode antenna, and upper antenna is used as diversity
Reception antenna.And all-metal mobile phone adopts slot antenna design, if still using the antenna of above-mentioned traditional non-all-metal mobile phone
Can there is a drawback in design：When the left hand or the right hand of user hold the gap of lower antenna, the performance of lower antenna will
Drastically decline, the serious harmful effect such as voice call drop or net drop can be produced.
In order to solve problem above, all-metal mobile phone introduces transmission antenna and selects (TAS) technology.Instantly antenna performance declines
During to a threshold value, interior of mobile phone processor will by TAS technique algorithms switch antenna change-over switch, so as to realize upper antenna with
Switching between lower antenna.
At present, the logical mobile phone of all-metal the whole network typically using the radio architectures of dual chip such as duplex MODEM, deposit by the framework
Problem be cannot coordinate control antenna change-over switch to complete TAS functions.
The content of the invention
Invention broadly provides a kind of antenna switching system and changing method, can make the mobile terminal with dual chip
Tunable controls antenna change-over switch.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of antenna switching system is provided, is used
In mobile terminal, including：Chip module, antenna change-over switch and antenna modules；
The chip module includes the first chip, the second chip；First chip and the second chip pass through the day
Line module is received and/or is signaled；
The antenna modules include main collection antenna and diversity antenna；
The antenna change-over switch is connected with the antenna modules, for the control signal according to first chip, control
Make the switching between the main collection antenna and diversity antenna.
First chip includes main collection path and diversity path, and the main collection path of first chip passes through the antenna
Switching switch is connected with the main collection antenna, and the diversity path of first chip passes through the antenna change-over switch with described point
Collection antenna connection, to realize that first chip is received and/or signaled by the antenna modules.
A kind of antenna switching system that the present invention is provided, also including frequency divider, the diversity path of first chip and institute
The transmission channel for stating the second chip is connected with the antenna change-over switch by the frequency divider, and then is switched by the antenna
Switch is connected with the diversity antenna, to realize that second chip is received and/or signaled by the antenna modules.
A kind of antenna switching system that the present invention is provided, further includes to open with first chip and antenna switching
The controller that connection connects, the control signal for being sent according to first chip control whether the antenna change-over switch is carried out
Switching between the main collection antenna and diversity antenna.
First chip includes the first detection circuit and the first decision circuitry；
The first detection circuit is used for measuring first received signal strength and the diversity antenna of the main collection antenna
The second received signal strength, and export to first decision circuitry；
First decision circuitry for first received signal strength is compared with second received signal strength,
And judging that first received signal strength is lower than second received signal strength and when being less than threshold value, output first is controlled
Signal is to the controller；Judging that first received signal strength is lower than second received signal strength but is not less than threshold
During value, then the second control signal is exported to the controller.
The controller is input into and work shape at present to the antenna change-over switch when first control signal is received
The contrary level of state, the antenna change-over switch carry out the switching between the main collection antenna and diversity antenna；The controller
When second control signal is received, stop to the antenna change-over switch input signal, the antenna change-over switch does not enter
Switching between the row main collection antenna and diversity antenna.
After the controller receives first control signal or the second control signal, TAS is selected to calculate using transmission antenna
Method determines the level to antenna change-over switch input or whether input signal.
Second chip includes the second detection circuit and output circuit；
The second detection circuit is used for detecting that whether the business of current transmission to be speech business, and testing result is transmitted
To the output circuit；
The output circuit is used for receiving the testing result, is judging the business of current transmission for institute's voice traffic
When, the 3rd control signal of output is to the controller；
The controller cuts out the control to the antenna change-over switch when three control signal is received.
3rd control signal is that AT instructs (Attention command), and the AT application of instruction is in terminal unit
Connection and communication between application.
For solving above-mentioned technical problem, another technical solution used in the present invention is：A kind of antenna switching method is provided,
In for mobile terminal including the first chip and the antenna switching system of the second chip, including：
First chip obtains the reception of main collection antenna and diversity antenna in the antenna modules of the antenna switching system
Signal intensity；
Control signal is produced according to the received signal strength of the acquisition, is cut with the antenna for controlling the antenna switching system
Change whether switch carries out the switching between the main collection antenna and diversity antenna.
It is described that control signal is produced according to the received signal strength of the acquisition, to control the day of the antenna switching system
The step of whether line switching switch carries out the switching between the main collection antenna and diversity antenna includes：
Judge whether the first received signal strength of the main collection antenna is stronger than the second reception signal of the diversity antenna
Degree is low and is less than threshold value；
If so, the controller of the first control signal to the antenna switching system is then exported, so that the controller is connecing
When receiving first control signal, controlling the antenna change-over switch carries out cutting between the main collection antenna and diversity antenna
Change；Second control signal is exported otherwise to the controller, so that the controller is when second control signal is received, control
Making the antenna change-over switch does not carry out the switching between the main collection antenna and diversity antenna.
The invention has the beneficial effects as follows：The situation of prior art is different from, the present invention is by the first chip transmission control letter
Number give controller, active control antenna change-over switch, it is to avoid the antenna change-over switch problem of disharmony of dual chip control.
Description of the drawings
Fig. 1 is inventive antenna switched system schematic diagram；
Fig. 2 is the circuit diagram that the first chip is included in Fig. 1；
Fig. 3 A are inventive antenna switched system initial condition schematic diagrams；
Fig. 3 B are schematic diagrams after the switching of inventive antenna switched system antenna change-over switch；
Fig. 4 is the circuit diagram that the second chip is included in Fig. 1；
It is circuit diagram that the first chip is additionally comprised that Fig. 5 is Fig. 1；
Fig. 6 is inventive antenna changing method schematic flow sheet；
Fig. 7 is S601 step detailed process schematic diagrams in Fig. 6；
Fig. 8 is mobile terminal structure schematic diagram of the present invention；
Specific embodiment
For overcoming current mobile terminal dual chip coordinate to control the problem of antenna change-over switch, the invention provides one
Plant antenna switching system and changing method.
Refer to Fig. 1, a kind of antenna switching system schematic diagram that Fig. 1 is provided for the present invention.
Antenna switching system shown in Fig. 1 is used for mobile terminal, including：Chip module 1, antenna change-over switch 2 and antenna
Module 3；Wherein, chip module 1 includes that the first chip 4, the second chip 5, the first chip 4 and the second chip 5 pass through antenna mould
Group 3 is received and/or is signaled；Antenna modules 3 include main collection antenna and diversity antenna；Antenna change-over switch 2 is connected with antenna modules 3
Connect, for the control signal according to the first chip 4, control the switching between main collection antenna and diversity antenna.
In the present embodiment, antenna change-over switch 2 is preferably double-point double-throw switch DPDT.First chip 4 and the second chip 5
It can be modem.
It should be noted that mobile terminal receive generally using main collection antenna and the mechanism that is operated together of diversity antenna and
Transmission signal, collection path typically main with mobile terminal be connected based on collect antenna, be connected with diversity path for diversity antenna.
In embodiments of the present invention, upper antenna 8 and lower antenna 9 correspond to above-mentioned main collection antenna and diversity antenna, concrete which root antenna respectively
The main collection antenna of correspondence, which root antenna pair answer diversity antenna not to be restricted herein, because in embodiments of the present invention, mobile terminal meeting
Antenna or diversity antenna will be collected based on antenna on this and the switching of lower antenna according to actual needs.In addition, above-mentioned upper antenna is with
Antenna can with but do not limit and be interpreted as：Upper antenna is positioned close on the position at the top of mobile terminal, and lower antenna is to be positioned close to
On the position of mobile terminal bottom, in different embodiments, on this, antenna and lower antenna may also be understood to be
Two kinds of different antennas of terminal diverse location or attribute.And above-mentioned upper antenna and lower antenna can be included one or more day
Line.
In the present embodiment, the first chip 4 includes main collection path 6 and diversity path 7, and the main collection path 6 of the first chip 4 passes through
Antenna change-over switch 2 is connected with main collection antenna, and the diversity path 7 of the first chip 4 is connected with diversity antenna by antenna change-over switch 2
Connect, to realize that the first chip 4 is received and/or signaled by antenna modules 3.For example, the first chip 4 is by its main collection 6 He of path
Main collection antenna 6 is achievable to be received and signals, and the first chip 4 passes through its diversity path 6 and diversity antenna is capable of achieving the collection of letters number.
Antenna switching system in the present embodiment further includes a frequency divider 11, the diversity path 7 of the first chip 4 and
The transmission channel 10 of two chips 5 is combined into a path 12 by frequency divider 11 and is connected with antenna change-over switch 2, and then passes through antenna
Switching switch 2 is connected with diversity antenna, to realize that the second chip 5 is received and/or signaled by antenna modules 3.For example, work as diversity
When antenna receives signal, the signal is believed with realizing that second chip is received by exporting to the second chip 5 after frequency divider 11
Number.
Antenna switching system in the present embodiment also includes controller 13, and the controller 13 is serially connected with the first chip 4 and day
Between line switching switch 2, whether the control signal control antenna change-over switch 2 for being sent according to the first chip 4 carries out main collection
Switching between antenna and diversity antenna.
Fig. 2-Fig. 3 is referred to, the switching for describing how the first chip 4 controls antenna change-over switch 2 in detail to illustrate.
Fig. 2 is the circuit diagram included in the first chip 4, and the first chip 4 includes the first detection circuit 201 and first
Decision circuitry 202；First detection circuit 201 is used for measuring first received signal strength and the second of diversity antenna of main collection antenna
Received signal strength, and output result is to the first decision circuitry 202；First decision circuitry 202 is strong for receiving signal by first
Degree is compared with the second received signal strength, and is judging that the first received signal strength is lower than the second received signal strength and is less than threshold
During value, the controller 13 in the first control signal to Fig. 1 is exported；Judging that it is strong that the first received signal strength receives signal than second
Degree is low but when being not less than threshold value, then exports the second control signal to controller 13.Controller 13 receive the first control signal when,
The level contrary with current working condition is input into antenna change-over switch 2, antenna change-over switch 3 carries out main collection antenna and diversity day
Switching between line；Controller 13 stops to 2 input signal of antenna change-over switch when the second control signal is received, and antenna is cut
Changing switch 3 does not carry out the switching between main collection antenna and diversity antenna.
Specifically, as shown in Figure 3A, the master of lower antenna 9 and the first chip 4 can be first set to during electricity on first chip
Collection path 6 connects, and upper antenna 8 is connected with diversity path 7, i.e., descend at present, and upper antenna 8 is diversity antenna.
Certainly, in other embodiments, lower antenna can be first set for diversity antenna, is collected antenna based on upper antenna, be not limited thereto.
When user uses mobile terminal, the first detection circuit 201 in the first chip 4 measures now main collection antenna respectively
Second received signal strength of first received signal strength of (that is, lower antenna 9) and diversity antenna (that is, upper antenna 8), and export
As a result to the first decision circuitry 202；It is strong that the first received signal strength for receiving is received signal with second by the first decision circuitry 202
Degree is compared.
If judge the first received signal strength it is lower than the second received signal strength and less than threshold value when, threshold value in the present embodiment
Preferably 6dB, the first control signal of output is to controller 13；Then controller 13 is input into and current work to antenna change-over switch 2
Make the contrary level of state, that is to say, that if current operating state is high level, believe to antenna change-over switch input low level
Number；Antenna change-over switch 2 carries out the switching between main collection antenna and diversity antenna, and after switching as shown in Figure 3 B, i.e., diversity is led to
Road 12 is connected with lower antenna 9, and main collection path 6 is connected with upper antenna 8, and now, lower antenna 9 is changed into diversity antenna, and upper antenna 8 is changed into
Main collection antenna, the second chip 5 are passively switched to and are connected with lower antenna 9.
If judging that the first received signal strength is lower than the second received signal strength but when being not less than threshold value, in the present embodiment
Threshold value is preferably 6dB, then export the second control signal to controller 13.Controller 13 stops to the input of antenna change-over switch 2 believing
Number, antenna change-over switch 3 does not carry out the switching between main collection antenna and diversity antenna, i.e. duplexer and connects still in Fig. 3 A
State, lower antenna 9 still based on collect antenna, upper antenna 8 is still diversity antenna.
Wherein, after controller noted above 13 receives the first control signal or the second control signal, selected using transmission antenna
TAS algorithms determine the level to the input of antenna change-over switch 2 or whether input signal.
By above-described embodiment as can be seen that the control signal received in controller 13 is provided by the first chip 4, the
Two chips 5 are controlled by the first chip 4 with the connected mode of upper antenna 8 or lower antenna 9, belong to the state of passive switching,
Thus avoid the problem conflicted when mobile terminal dual chip works.And, in above-described embodiment, 4 basis of the first chip
The received signal strength of antenna determines whether switching, it is ensured that on the antenna of better performances that its main collection path 6 is arranged in pairs or groups.
Mobile terminal using business be generally divided into data service and speech business, data service is generally breakpoint transmission,
2 frequent switching of antenna change-over switch is little using affecting on its business；And speech business is to continuously transmit, if antenna change-over switch
The harmful effect such as voice can be caused to go offline of 2 frequent switchings.Fig. 4-Fig. 5 is referred to, and citing is described in detail and language is in when mobile terminal
During sound business environment, how effective control antenna change-over switch 2.
Fig. 4 is the circuit diagram of the second chip 5, and the second chip 5 includes the second detection circuit 401 and output circuit 402；
Second detection circuit 401 is used for detecting whether the business of current transmission to be speech business, and testing result is transmitted to output electricity
Road 402；Output circuit 402 is used for receiving testing result, and when the business of current transmission is judged for speech business, output the 3rd is controlled
Signal processed is to controller 13；Controller 13 cuts out the control to antenna change-over switch 2 when three control signals is received；This reality
Apply in example, the 3rd control signal is preferably AT instructions.
Specifically, in the present embodiment, the second chip 5 is preferably capable supporting that the chip of CDMA mode of operations, for example, connection are sent out
Section's MT6158 chips；First chip 4 is preferably capable supporting GSM/WCDMA/TDSCDMA/LTE TDD/LTE FDD mode of operations
Chip, for example, Lian Fa sections MT6169 chips.
In an applied environment, mobile terminal is in the mode of operation of the second chip 5, if the of the second chip 5
Two detection circuits 401 are detected and are currently using speech business, and the result is transmitted to output circuit 402, output circuit 402
Export the 3rd control signal AT to instruct to controller 13, controller 13 cuts out its TAS function, and then closes to antenna change-over switch
2 control, i.e. antenna change-over switch 2 stop switching, it is ensured that the stability of voice call.
In another applied environment, the first chip 4 also includes three testing circuit 501 and the second output circuit 502.If
Mobile terminal is in the mode of operation of the first chip 4, if the three testing circuit 501 of the first chip 4 is just detected currently
Using speech business and transmit the result to the second output circuit 502, the second output circuit 502 exports the 4th control signal AT and refers to
Make to controller 13, controller 13 cuts out its TAS function, and then closes the control to antenna change-over switch 2, i.e. antenna switching is opened
Close 2 and stop switching.
It is understood that in a particular application, the first detection circuit 201 of above-mentioned first chip 4, the first decision circuitry
202nd, three testing circuit 501 and the second output circuit 502 can respectively by independent circuit realiration, or by identical circuit
A for example, processor is realized.Equally, the second detection circuit 401 and output circuit 402 of above-mentioned second chip 5 can also be respectively
By independent circuit realiration, or it is, for example, that a processor is realized by identical circuit.
Refer to Fig. 6-Fig. 7, present invention also offers a kind of antenna switching method, for mobile terminal in including first
The antenna switching system of chip 4 and the second chip 5, its antenna switching system are consistent with the above, will not be described here.
It is as shown in Figure 6 the step of antenna switching method in the present embodiment：
The reception letter of main collection antenna and diversity antenna in the antenna modules 3 of the acquisition antenna switching system of the first chips of S601 4
Number intensity；
S602 produces control signal according to the received signal strength for obtaining, and is switched with the antenna for controlling antenna switching system and is opened
Close whether 2 carry out the switching between main collection antenna and diversity antenna.
Above-mentioned S602 steps are further comprising the steps, as shown in Figure 7：
S701 judges whether the first received signal strength of main collection antenna is lower than the second received signal strength of diversity antenna
And it is less than threshold value；
If so, S702 then exports the controller 13 of the first control signal to antenna switching system, so that controller 13 is connecing
When receiving the first control signal, controlling antenna change-over switch 2 carries out the switching between main collection antenna and diversity antenna；
S703 if it is not, then export the second control signal to controller 13 so that controller 13 is receiving the second control letter
Number when, control antenna change-over switch 2 do not carry out it is main collection antenna and diversity antenna between switching.
Fig. 8 is referred to, present invention also offers a kind of mobile terminal, using above-mentioned antenna switching system and changing method,
Both the problem that dual chip is unable to co-ordination had been avoided, the stability of mobile phone speech business had been in turn ensure that.
Wherein, the mobile terminal in above-described embodiment can be specially all-metal mobile phone.
The mobile terminal of such scheme has the first chip and the second chip, the transmission channel of the second chip and the first chip
Diversity path and a path is shared by frequency divider, and then be connected with diversity antenna by antenna change-over switch；Work as movement
During terminal works, if the first chip detection is lower than diversity antenna to the now main received signal strength for collecting antenna and is less than threshold value
When, switching signal is sent to controller, after controller receives signal, switched by TAS function controls antenna change-over switch, now
Second chip and the state that the connected mode of antenna is in passive switching, it is uncoordinated so as to avoid conventional dual chip control
Problem.
Further, mobile terminal using business be generally divided into data service and speech business, data service is generally disconnected
Point transmission, antenna change-over switch frequent switching are little using affecting on its business；And speech business is to continuously transmit, if antenna is cut
Change the harmful effect such as voice can be caused to go offline of switch frequent switching.When mobile terminal is in the speech business of the second chip,
Second chip output AT is instructed to controller, and controller cuts out its TAS function, and antenna change-over switch stops switching, it is to avoid now
First chip controls antenna change-over switch frequent switching；Similarly, when mobile terminal is in the speech business of the first chip,
First chip output AT is instructed to controller, and controller cuts out its TAS function, and antenna change-over switch stops switching, so that language
Sound call performance is stable.
Embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using the present invention
Equivalent structure or equivalent flow conversion that description and accompanying drawing content are made, or directly or indirectly it is used in other related technologies
Field, is included within the scope of the present invention.
Claims (10)
1. a kind of antenna switching system, for mobile terminal, it is characterised in that include：
Chip module, antenna change-over switch and antenna modules；Wherein,
The chip module includes the first chip, the second chip；First chip and the second chip pass through the antenna mould
Group is received and/or is signaled；
The antenna modules include main collection antenna and diversity antenna；
The antenna change-over switch is connected with the antenna modules, for the control signal according to first chip, controls institute
State the switching between main collection antenna and diversity antenna.
2. antenna switching system according to claim 1, it is characterised in that
First chip includes main collection path and diversity path, and the main collection path of first chip is switched by the antenna
Switch is connected with the main collection antenna, and the diversity path of first chip is by the antenna change-over switch and the diversity day
Line connects, to realize that first chip is received and/or signaled by the antenna modules.
3. antenna switching system according to claim 2, it is characterised in that
Also pass through the frequency divider including the transmission channel of frequency divider, the diversity path of first chip and second chip
It is connected with the antenna change-over switch, and then is connected with the diversity antenna by the antenna change-over switch, it is described to realize
Second chip is received and/or is signaled by the antenna modules.
4. antenna switching system according to claim 1, it is characterised in that
Also include the controller being connected with first chip and the antenna change-over switch, for sending out according to first chip
The control signal sent controls whether the antenna change-over switch carries out the switching between the main collection antenna and diversity antenna.
5. antenna switching system according to claim 4, it is characterised in that
First chip includes the first detection circuit and the first decision circuitry；
The first detection circuit is used for measuring the of the first received signal strength and the diversity antenna of the main collection antenna
Two received signal strengths, and export to first decision circuitry；
First decision circuitry for first received signal strength is compared with second received signal strength, and
Judge that first received signal strength is lower than second received signal strength and when being less than threshold value, export the first control signal
To the controller；Judging that first received signal strength is lower than second received signal strength but is not less than threshold value
When, then the second control signal is exported to the controller.
The controller is input into and current working condition phase to the antenna change-over switch when first control signal is received
Anti- level, the antenna change-over switch carry out the switching between the main collection antenna and diversity antenna；The controller is connecing
When receiving second control signal, stop to the antenna change-over switch input signal, the antenna change-over switch does not carry out institute
State the switching between main collection antenna and diversity antenna.
6. antenna switching system according to claim 5, it is characterised in that
After the controller receives first control signal or the second control signal, select TAS algorithms true using transmission antenna
Orient the level of antenna change-over switch input or whether input signal.
7. antenna switching system according to claim 4, it is characterised in that
Second chip includes the second detection circuit and output circuit；
The second detection circuit is used for detecting whether the business of current transmission to be speech business, and testing result is transmitted to institute
State output circuit；
The output circuit is used for receiving the testing result, when the business of current transmission is judged for institute's voice traffic, defeated
Go out the 3rd control signal to the controller；
The controller cuts out the control to the antenna change-over switch when three control signal is received.
8. antenna switching system according to claim 7, it is characterised in that
3rd control signal is instructed for AT.
9. a kind of antenna switching method, it is characterised in that for the antenna switching system described in claim 1, including：
First chip obtains the reception signal of main collection antenna and diversity antenna in the antenna modules of the antenna switching system
Intensity；
Control signal is produced according to the received signal strength of the acquisition, is switched with the antenna for controlling the antenna switching system and is opened
Whether pass carries out the switching between the main collection antenna and the diversity antenna.
10. antenna switching method according to claim 9, it is characterised in that
It is described that control signal is produced according to the received signal strength of the acquisition, cut with the antenna for controlling the antenna switching system
Changing the step of whether switch carries out the switching between the main collection antenna and the diversity antenna includes：
Judge whether the first received signal strength of the main collection antenna is lower than the second received signal strength of the diversity antenna
And it is less than threshold value；
If so, the controller of the first control signal to the antenna switching system is then exported, so that the controller is receiving institute
When stating the first control signal, controlling the antenna change-over switch carries out the switching between the main collection antenna and diversity antenna；It is no
The second control signal is then exported to the controller, so that the controller is when second control signal is received, institute is controlled
Stating antenna change-over switch does not carry out the switching between the main collection antenna and diversity antenna.
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| CN201610836796.3A CN106533455B (en) | 2016-09-20 | 2016-09-20 | A kind of antenna switching system and switching method |
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| CN107294545A (en) * | 2017-05-04 | 2017-10-24 | 努比亚技术有限公司 | A kind of method that terminal and working condition to terminal antenna are switched over |
| WO2019011231A1 (en) * | 2017-07-10 | 2019-01-17 | 惠州Tcl移动通信有限公司 | Method for reducing sar value of mobile terminal, storage medium and mobile terminal |
| CN109547054A (en) * | 2018-12-28 | 2019-03-29 | 维沃移动通信有限公司 | Signal control circuit, terminal device and signal control method |
| CN109687150A (en) * | 2018-12-17 | 2019-04-26 | 惠州Tcl移动通信有限公司 | A kind of antenna structure and electronic equipment |
| CN110072271A (en) * | 2018-01-23 | 2019-07-30 | 展讯通信（上海）有限公司 | The control method and device of dual-antenna system |
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| CN110808809B (en) * | 2018-08-06 | 2021-08-06 | 中国移动通信有限公司研究院 | Signal transmission method and device |
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| CN112202467B (en) * | 2020-09-02 | 2021-09-21 | 珠海格力电器股份有限公司 | Method, device, equipment and medium for controlling main diversity change-over switch |
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