CN106533455B - A kind of antenna switching system and switching method - Google Patents

A kind of antenna switching system and switching method Download PDF

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Publication number
CN106533455B
CN106533455B CN201610836796.3A CN201610836796A CN106533455B CN 106533455 B CN106533455 B CN 106533455B CN 201610836796 A CN201610836796 A CN 201610836796A CN 106533455 B CN106533455 B CN 106533455B
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China
Prior art keywords
antenna
chip
over switch
change
diversity
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CN201610836796.3A
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CN106533455A (en
Inventor
黎宇彪
王文
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Hangzhou Southeast Jitong Network Co ltd
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Huizhou TCL Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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
    • H04B1/0053Details 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
    • H04B1/006Details 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00Antennas with active circuits or circuit elements integrated within them or attached to them

Abstract

The invention discloses a kind of antenna switching system and method, which is used for mobile terminal, comprising: chip module, antenna change-over switch and antenna modules;Wherein, chip module includes the first chip, the second chip;First chip and the second chip are received and/or are signaled by the antenna modules;Antenna modules include main collection antenna and diversity antenna;Antenna change-over switch is connect with antenna modules, for the control signal according to the first chip, controls the switching between the main collection antenna and diversity antenna.By the above-mentioned means, the present invention can effectively solve the problem that the problem of mobile terminal dual chip is unable to coordinated control antenna change-over switch, it can guarantee mobile terminal sound call performance and network performance.

Description

A kind of antenna switching system and switching method
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of antenna switching system and switching method.
Background technique
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 as diversity Receiving antenna.And all-metal mobile phone uses slot antenna design scheme, if still using the antenna of the non-all-metal mobile phone of above-mentioned tradition Design scheme can have a drawback: when the left hand of user or the right hand hold the gap of lower antenna, the performance of lower antenna will Sharply decline, the serious adverse effect such as voice call drop or net drop can be generated.
In order to solve problem above, all-metal mobile phone introduces transmission antenna and selects (TAS) technology.Instantly antenna performance declines When to a threshold value, interior of mobile phone processor will switch antenna change-over switch by TAS technique algorithm, thus realize upper antenna with Switching between lower antenna.
Currently, all-metal the whole network leads to the radio architectures that mobile phone generally uses dual chip such as duplex MODEM, which is deposited The problem of be can not coordinated control antenna change-over switch to complete TAS function.
Summary of the invention
Invention broadly provides a kind of antenna switching system and switching methods, can make the mobile terminal with dual chip Tunable controls antenna change-over switch.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of antenna switching system is provided, is used In mobile terminal, comprising: 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 mould group is received and/or signals;
The antenna modules include main collection antenna and diversity antenna;
The antenna change-over switch is connect 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 access and diversity access, and the main collection access of first chip passes through the antenna Switching switch is connect with the main collection antenna, and the diversity access of first chip passes through the antenna change-over switch and described point Collect antenna connection, to realize that first chip is received and/or signaled by the antenna modules.
A kind of antenna switching system provided by the invention, further includes frequency divider, the diversity access of first chip and institute The transmission channel for stating the second chip is connect by the frequency divider with the antenna change-over switch, and then is switched by the antenna Switch is connect with the diversity antenna, to realize that second chip is received and/or signaled by the antenna modules.
A kind of antenna switching system provided by the invention further comprises opening with first chip and antenna switching The controller connect is correlated, the control signal for sending according to first chip controls whether the antenna change-over switch carries out Switching between the main collection antenna and diversity antenna.
First chip includes the first detection circuit and the first decision circuitry;
First detection circuit is used to measure the 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 is used for by first received signal strength compared with second received signal strength, And judging that first received signal strength is lower than second received signal strength and when lower than threshold value, the first control of output Signal is to the controller;Judging that first received signal strength is lower than second received signal strength but is not less than threshold When value, then second control signal is exported to the controller.
The controller is when receiving the first control signal, the input of Xiang Suoshu antenna change-over switch and work shape at present The opposite level of state, the antenna change-over switch carry out the switching between the main collection antenna and diversity antenna;The controller When receiving the second control signal, stop to the antenna change-over switch input signal, the antenna change-over switch not into Switching between the row main collection antenna and diversity antenna.
After the controller receives the first control signal or second control signal, calculated using transmission antenna selection TAS Method determine the level that is inputted to the antenna change-over switch or whether input signal.
Second chip includes the second detection circuit and output circuit;
Second detection circuit will test result transmission for detecting whether the business of current transmission is voice service To the output circuit;
The output circuit is for receiving the testing result, in the business for judging current transmission for institute's voice traffic When, output third controls signal to the controller;
The controller closes the control to the antenna change-over switch when receiving the third control signal.
The third control signal is that AT instructs (Attention command), and the AT application of instruction is in terminal device Connection and communication between application.
In order to solve the above technical problems, another technical solution used in the present invention is: a kind of antenna switching method is provided, For the antenna switching system including the first chip and the second chip in mobile terminal, comprising:
First chip obtains the reception of main collection antenna and diversity antenna in the antenna modules of the antenna switching system Signal strength;
Control signal is generated according to the received signal strength of the acquisition, is cut with controlling the antenna of the antenna switching system Change whether switch carries out the main switching collected between antenna and diversity antenna.
It is described that control signal is generated according to the received signal strength of the acquisition, to control the day of the antenna switching system Line switching switchs that the step of whether carrying out the main switching collected between 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 It spends low and is lower than threshold value;
If so, controller of the output first control signal to the antenna switching system, so that the controller is connecing When receiving the first control signal, controls the antenna change-over switch and carry out cutting between the main collection antenna and diversity antenna It changes;Otherwise output second control signal is to the controller, so that the controller when receiving the second control signal, is controlled The antenna change-over switch is made without the switching between the main collection antenna and diversity antenna.
The beneficial effects of the present invention are: being in contrast to the prior art, the present invention passes through the first chip transmission control letter Number give controller, active control antenna change-over switch, avoid dual chip control antenna change-over switch problem of disharmony.
Detailed description of the invention
Fig. 1 is inventive antenna switching system schematic diagram;
Fig. 2 is the circuit diagram that the first chip includes in Fig. 1;
Fig. 3 A is inventive antenna switching system reset condition schematic diagram;
Fig. 3 B is schematic diagram after the switching of inventive antenna switching system antenna change-over switch;
Fig. 4 is the circuit diagram that the second chip includes in Fig. 1;
Fig. 5 is that Fig. 1 is the circuit diagram that the first chip additionally comprises;
Fig. 6 is inventive antenna switching method flow diagram;
Fig. 7 is S601 step detailed process schematic diagram in Fig. 6;
Fig. 8 is mobile terminal structure schematic diagram of the present invention;
Specific embodiment
To overcome the problems, such as that current mobile terminal dual chip is unable to coordinated control antenna change-over switch, the present invention provides one Kind antenna switching system and switching method.
Referring to Fig. 1, Fig. 1 is a kind of antenna switching system schematic diagram provided by the invention.
Antenna switching system shown in FIG. 1 is used for mobile terminal, comprising: chip module 1, antenna change-over switch 2 and antenna Mould group 3;Wherein, chip module 1 includes the first chip 4, the second chip 5, and the first chip 4 and the second chip 5 pass through antenna mould Group 3 is received and/or signals;Antenna modules 3 include main collection antenna and diversity antenna;Antenna change-over switch 2 and antenna modules 3 connect It connects, for the control signal according to the first chip 4, controls the switching between main collection antenna and diversity antenna.
Antenna change-over switch 2 is preferably double-point double-throw switch DPDT in the present embodiment.First chip 4 and the second chip 5 It can be modem.
It should be noted that mobile terminal generally use main collection antenna and the mechanism that is operated together of diversity antenna receiving and Emit signal, be generally connected with collection access main in mobile terminal based on collect antenna, being connected with diversity access is diversity antenna. In embodiments of the present invention, upper antenna 8 and lower antenna 9 respectively correspond above-mentioned main collection antenna and diversity antenna, which specific root antenna Corresponding main collection antenna, which root antenna correspond to diversity antenna herein with no restriction, 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 under Antenna can with but unlimited understanding are as follows: heaven line be positioned close on the position at the top of mobile terminal, lower antenna be positioned close to On the position of mobile terminal bottom, in different embodiments, antenna and lower antenna may also be understood to be any and be arranged in movement on this Terminal different location or the different two kinds of antennas of attribute.And above-mentioned upper antenna and lower antenna may include one or more day Line.
In the present embodiment, the first chip 4 includes main collection access 6 and diversity access 7, and the main collection access 6 of the first chip 4 passes through Antenna change-over switch 2 is connect with main collection antenna, and the diversity access 7 of the first chip 4 is connected by antenna change-over switch 2 and diversity antenna It connects, to realize that the first chip 4 is received and/or signaled by antenna modules 3.For example, the first chip 4 passes through its main 6 He of collection access Main collection antenna 6 can realize receipts and signalling, and the first chip 4 can realize the collection of letters number by its diversity access 6 and diversity antenna.
Antenna switching system in the present embodiment further comprises a frequency divider 11, the diversity access 7 of the first chip 4 and The transmission channel 10 of two chips 5 is combined into an access 12 by frequency divider 11 and connect with antenna change-over switch 2, and then passes through antenna Switching switch 2 is connect with diversity antenna, to realize that the second chip 5 is received and/or signaled by antenna modules 3.For example, working as diversity When antenna receives signal, output is to the second chip 5 after which passes through frequency divider 11, to realize that second chip receives letter Number.
Antenna switching system in the present embodiment further includes controller 13, which is serially connected with the first chip 4 and day Line switches between switch 2, and 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 please referred to, the switching of antenna change-over switch 2 how is controlled with the first chip 4 of detailed description of illustrating.
Fig. 2 is 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 to measure the second of main the first received signal strength for collecting antenna and diversity antenna Received signal strength, and result is exported to the first decision circuitry 202;First decision circuitry 202 is used to receive signal for first strong Degree is judging that the first received signal strength is lower than the second received signal strength and is lower than threshold compared with the second received signal strength When value, controller 13 of the first control signal into Fig. 1 is exported;Judging that the first received signal strength is stronger than the second reception signal It spends low but when not less than threshold value, then exports second control signal to controller 13.Controller 13 when receiving first control signal, The level opposite with current working condition is inputted to 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, antenna is cut when receiving second control signal Switch 3 is changed without the switching between main collection antenna and diversity antenna.
Specifically, as shown in Figure 3A, when first chip powers on, the master of lower antenna 9 and the first chip 4 can be first set as Collect access 6 to connect, upper antenna 8 is connect with diversity access 7, i.e., collects antenna based on lower antenna 9 at present, upper antenna 8 is diversity antenna. Certainly, in other embodiments, it is diversity antenna that lower antenna, which can first be arranged, collects antenna based on upper antenna, is not limited thereto.
When user uses mobile terminal, the first detection circuit 201 in the first chip 4 measures main collection antenna at this time respectively First received signal strength of (that is, lower antenna 9) and second received signal strength of diversity antenna (that is, upper antenna 8), and export As a result to the first decision circuitry 202;First decision circuitry 202 is strong by received first received signal strength and the second reception signal Degree is compared.
If judging, the first received signal strength is lower than the second received signal strength and when lower than threshold value, threshold value in the present embodiment Preferably 6dB, output first control signal to controller 13;Then controller 13 inputs and current work to antenna change-over switch 2 Make the opposite level of state, that is to say, that if current working status 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 as shown in Figure 3B after switching, i.e., diversity is logical Road 12 is connected with lower antenna 9, and main collection access 6 is connected with upper antenna 8, at this point, lower antenna 9 becomes diversity antenna, upper antenna 8 becomes Main collection antenna, the second chip 5 is passively switched to be connect with lower antenna 9.
If judging that the first received signal strength is lower than the second received signal strength but when not less than threshold value, in the present embodiment Threshold value is preferably 6dB, then exports second control signal to controller 13.Controller 13, which stops inputting to antenna change-over switch 2, to be believed Number, antenna change-over switch 3 is without the switching between main collection antenna and diversity antenna, i.e. duplexer connection is still in Fig. 3 A State, lower antenna 9 still based on collect antenna, upper antenna 8 is still diversity antenna.
It wherein, after above controller 13 receives first control signal or second control signal, is selected using transmission antenna TAS algorithm determine the level that is inputted to antenna change-over switch 2 or whether input signal.
It can be seen from above-described embodiment that the received control signal of institute is provided by the first chip 4 in controller 13, the The connection type of two chips 5 and upper antenna 8 or lower antenna 9 is controlled by the first chip 4, and the state passively switched is belonged to, The problem of conflicting when thus avoiding the work of mobile terminal dual chip.Moreover, in above-described embodiment, 4 basis of the first chip The received signal strength of antenna determines whether to switch, and guaranteeing will be in its main collection access 6 collocation to the antenna of better performances.
The business that mobile terminal uses is generally divided into data service and voice service, and data service is generally breakpoint transmission, 2 frequent switching of antenna change-over switch is little using influencing on its business;And voice service is to continuously transmit, if antenna change-over switch 2 frequent switchings will lead to the adverse effects such as voice goes offline.Fig. 4-Fig. 5 is please referred to, citing is described in detail when mobile terminal is in language When sound business environment, how to effectively 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 will test result and be transmitted to output electricity for detecting whether the business of current transmission is voice service Road 402;Output circuit 402 is for receiving testing result, when the business for judging current transmission is voice service, exports third control Signal processed is to controller 13;Controller 13 closes the control to antenna change-over switch 2 when receiving third control signal;This reality It applies in example, third control signal is preferably AT instruction.
Specifically, the second chip 5 is preferably capable supporting the chip of CDMA operating mode, for example, connection hair in the present embodiment Section's MT6158 chip;First chip 4 is preferably capable supporting GSM/WCDMA/TDSCDMA/LTE TDD/LTE FDD operating mode Chip, for example, Lian Fa section MT6169 chip.
In an application environment, mobile terminal is in the operating mode of the second chip 5, if the of the second chip 5 Two detection circuits 401 are detected currently using voice service, and the result is transmitted to output circuit 402, output circuit 402 Output third control signal AT is instructed to controller 13, and controller 13 closes its TAS function, and then closes to antenna change-over switch 2 control, i.e. antenna change-over switch 2 stop switching, guarantee the stability of voice communication.
In another application environment, the first chip 4 further includes third detection circuit 501 and the second output circuit 502.If Mobile terminal is in the operating mode of the first chip 4, if the third detection circuit 501 of the first chip 4 detects currently just Using voice service and the second output circuit 502 is transmitted the result to, the 4th control signal AT of the second output circuit 502 output refers to It enables to controller 13, controller 13 closes its TAS function, and then closes the control to antenna change-over switch 2, i.e. antenna switching is opened It closes 2 and stops switching.
It is understood that in a particular application, the first detection circuit 201, the first decision circuitry of above-mentioned first chip 4 202, third detection circuit 501 and the second output circuit 502 can be realized by independent circuit respectively, or by identical circuit A for example, processor is realized.Equally, the second detection circuit 401 of above-mentioned second chip 5 and output circuit 402 can also be distinguished Realized by independent circuit, or by identical circuit be, for example, a processor realize.
Fig. 6-Fig. 7 is please referred to, the present invention also provides a kind of antenna switching method, in mobile terminal including first The antenna switching system of chip 4 and the second chip 5, antenna switching system is consistent with above content, and details are not described herein.
It is as shown in Figure 6 the step of antenna switching method in the present embodiment:
The first chip of S601 4 obtains the reception letter of main collection antenna and diversity antenna in the antenna modules 3 of antenna switching system Number intensity;
S602 generates control signal according to the received signal strength of acquisition, is opened with controlling the antenna switching of antenna switching system Close whether 2 carry out the main switching collected between antenna and diversity antenna.
Above-mentioned S602 step further comprises 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 lower than threshold value;
S702 is if so, export the controller 13 of first control signal to antenna switching system, so that controller 13 is connecing When receiving first control signal, control antenna change-over switch 2 carries out the switching between main collection antenna and diversity antenna;
S703 is if it is not, then export second control signal to controller 13, so that controller 13 controls letter in reception second Number when, control antenna change-over switch 2 without it is main collection antenna and diversity antenna between switching.
Referring to Fig. 8, the present invention also provides a kind of mobile terminal, using above-mentioned antenna switching system and switching method, Both the problem of dual chip is unable to co-ordination is avoided, in turn ensures the stability of mobile phone speech business.
Wherein, the mobile terminal in above-described embodiment can be specially all-metal mobile phone.
The mobile terminal of above scheme has the first chip and the second chip, the transmission channel of the second chip and the first chip Diversity access and an access is shared by frequency divider, and then connect by antenna change-over switch with diversity antenna;Work as movement When terminal works, if the first chip detects that the received signal strength of main collection antenna at this time is lower than diversity antenna and is lower than threshold value When, switching signal is sent to controller, after controller receives signal, is switched by TAS function control antenna change-over switch, at this time The connection type of second chip and antenna is to control in the state passively switched so as to avoid conventional dual chip uncoordinated Problem.
Further, the business that mobile terminal uses is generally divided into data service and voice service, and data service is generally disconnected Point transmission, antenna change-over switch frequent switching are little using influencing on its business;And voice service is to continuously transmit, if antenna is cut Changing switch frequent switching will lead to the adverse effects such as voice goes offline.When mobile terminal is in the voice service of the second chip, Second chip output AT is instructed to controller, and controller closes its TAS function, and antenna change-over switch stops switching, avoids at this time First chip controls antenna change-over switch frequent switching;Similarly, when mobile terminal is in the voice service of the first chip, First chip output AT is instructed to controller, and controller closes its TAS function, and antenna change-over switch stops switching, to make language Sound call performance is stablized.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies Field is included within the scope of the present invention.

Claims (10)

1. a kind of antenna switching system is used for mobile terminal characterized by comprising
Chip module, antenna change-over switch and antenna modules, controller;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 signals;
The antenna modules include main collection antenna and diversity antenna;
The antenna change-over switch is connect with the antenna modules, for the control signal according to first chip, controls institute State the switching between main collection antenna and diversity antenna;
The controller is serially connected between the antenna change-over switch and first chip, detects currently used language for working as When sound business, its control to the antenna change-over switch is closed, so that the antenna change-over switch stops switching.
2. antenna switching system according to claim 1, which is characterized in that
First chip includes main collection access and diversity access, and the main collection access of first chip is switched by the antenna Switch is connect with the main collection antenna, and the diversity access of first chip passes through the antenna change-over switch and the diversity day Line connection, to realize that first chip is received and/or signaled by the antenna modules.
3. antenna switching system according to claim 2, which is characterized in that
It further include frequency divider, the transmission channel of the diversity access of first chip and second chip passes through the frequency divider It connect with the antenna change-over switch, and then is connect by the antenna change-over switch with the diversity antenna, described in realizing Second chip is received and/or is signaled by the antenna modules.
4. antenna switching system according to claim 1, which is characterized in that
The controller be also used to be controlled according to the control signal that first chip is sent the antenna change-over switch whether into Switching between the row main collection antenna and diversity antenna.
5. antenna switching system according to claim 4, which is characterized in that
First chip includes the first detection circuit and the first decision circuitry;
First detection circuit be used to measure the main collection antenna the first received signal strength and the diversity antenna the Two received signal strengths, and export to first decision circuitry;
First decision circuitry is used for by first received signal strength compared with second received signal strength, and Judge that first received signal strength is lower than second received signal strength and when lower than threshold value, exports 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 second control signal is exported to the controller;
The controller is when receiving the first control signal, the input of Xiang Suoshu antenna change-over switch and current working condition phase 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 the second control signal, stop to the antenna change-over switch input signal, the antenna change-over switch is without institute State the switching between main collection antenna and diversity antenna.
6. antenna switching system according to claim 5, which is characterized in that
It is true using transmission antenna selection TAS algorithm after the controller receives the first control signal or second control signal Orient antenna change-over switch input level or whether input signal.
7. antenna switching system according to claim 1, which is characterized in that
Second chip includes the second detection circuit and output circuit;
Second detection circuit will test result and be transmitted to institute for detecting whether the business of current transmission is voice service State output circuit;
The output circuit is defeated when the business for judging current transmission is institute's voice traffic for receiving the testing result Third controls signal to the controller out;
The controller closes the control to the antenna change-over switch when receiving the third control signal.
8. antenna switching system according to claim 7, which is characterized in that
The third control signal is AT instruction.
9. a kind of antenna switching method, which is characterized in that be used for antenna switching system described in claim 1, comprising:
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 generated according to the received signal strength of the acquisition, is opened with controlling the antenna switching of the antenna switching system Close the switching whether carried out between the main collection antenna and the diversity antenna;
And when detecting currently used voice service, the control that is serially connected between the antenna change-over switch and first chip Device processed closes its control to the antenna change-over switch, so that the antenna change-over switch stops switching.
10. antenna switching method according to claim 9, which is characterized in that
It is described that control signal is generated according to the received signal strength of the acquisition, it is cut with controlling the antenna of the antenna switching system Change that 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 lower than threshold value;
If so, controller of the output first control signal to the antenna switching system, so that the controller is receiving institute When stating first control signal, controls the antenna change-over switch and carry out the main switching collected between antenna and diversity antenna;It is no Second control signal is then exported to the controller, so that the controller when receiving the second control signal, controls institute Antenna change-over switch is stated without the switching between the main collection antenna and diversity antenna.
CN201610836796.3A 2016-09-20 2016-09-20 A kind of antenna switching system and switching method Active CN106533455B (en)

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