CN106452473A - Common receiving channel radio frequency circuit, double card bypass method and mobile terminal - Google Patents
Common receiving channel radio frequency circuit, double card bypass method and mobile terminal Download PDFInfo
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- CN106452473A CN106452473A CN201610585787.1A CN201610585787A CN106452473A CN 106452473 A CN106452473 A CN 106452473A CN 201610585787 A CN201610585787 A CN 201610585787A CN 106452473 A CN106452473 A CN 106452473A
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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
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The embodiments of the invention disclose a common receiving channel radio frequency circuit, a double card bypass method and a mobile terminal, involving: an antenna, an antenna switch, a receiving channel switch, and at least two diplexers, wherein the antenna is connected to the antenna switch which is connected to the receiving channel switch, and the receiving channel switch is connected to the at least two diplexers. The receiving channel switch is intended for simultaneously turning on a first receiving channel and a second receiving channel. The first receiving channel is intended for receiving a first call-in signal transmitted by a first base station to a first terminal card. The second receiving channel is intended for a second call-in signal transmitted by a second base station to a second terminal card. According to the embodiments of the invention, the receiving channel switch can enable simultaneous call-in of the base station to the first terminal card and the second terminal card, such that the double card bypass of the receiving channels is realized for the first terminal card and the second terminal card.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a common receiving channel radio frequency circuit, a double-card double-pass method and a mobile terminal.
Background
The dual-card dual-pass mobile phone is a difficult problem to be solved by the industry all the time.
Today there are several main solutions in the industry: firstly, two sets of radio frequency systems are utilized to carry out double-card double-pass, the cost of the scheme is extremely high, and the scheme is not beneficial to large-area use in practice: in the second scheme, any one card is switched to another card, so that double-card double-pass is realized.
Disclosure of Invention
The embodiment of the invention provides a common receiving channel radio frequency circuit, a double-card double-pass method and a mobile terminal, aiming to solve the problems that the prior art has the disadvantages of low cost and high cost
The embodiment of the invention provides a common receiving channel radio frequency circuit, which comprises:
the antenna, an antenna switch, a receiving channel switch and at least two duplexers; wherein,
the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers;
the receiving channel switch is used for simultaneously switching on a first receiving channel and a second receiving channel, the first receiving channel is used for receiving a first incoming call signal sent by a first base station aiming at a first terminal card, and the second receiving channel is used for receiving a second incoming call signal sent by a second base station aiming at a second terminal card.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a classical radio frequency path of a mobile terminal in the prior art;
fig. 2 is a schematic structural diagram of a common receive channel rf circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another common receive channel rf circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another common receive channel rf circuit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another common receive channel rf circuit according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of another common receive channel rf circuit according to an embodiment of the disclosure;
FIG. 7 is a schematic flow chart of a dual-card dual-pass method disclosed in the embodiments of the present invention;
FIG. 8 is a schematic flow chart of a dual-card dual-pass method disclosed in the embodiments of the present invention;
fig. 9 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another mobile terminal disclosed in the embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Generally, the method shown in fig. 1 is mainly adopted for the classical radio frequency path of the mobile terminal, that is, a duplexer method is adopted for both the receiving RX and the transmitting TX of each system (there is also a part of the frequency band shared RX between 2G/3G/4G), and the rest is strictly distinguished. The antenna switch in fig. 2, whose path is open only when the corresponding frequency band is used for communication, and the other paths are closed, is generally called a single-pole four-throw switch (SP 4T). For example, when we realize GSM850 communication, the rest of the path is disconnected from the switch. That is to say, if the dual-card dual-pass needs to be supported on hardware, two sets of such device channels are needed to operate, and the hardware cost is extremely high.
With respect to the above prior art, the following describes embodiments of the present invention in detail.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a common receive channel rf circuit according to an embodiment of the present invention, and as shown in the figure, the common receive channel rf circuit includes: the antenna, an antenna switch, a receiving channel switch and at least two duplexers; wherein,
the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers;
the receiving channel switch is used for simultaneously switching on a first receiving channel and a second receiving channel, the first receiving channel is used for receiving a first incoming call signal sent by a first base station aiming at a first terminal card, and the second receiving channel is used for receiving a second incoming call signal sent by a second base station aiming at a second terminal card.
The first terminal card and the second terminal card may be, for example, a Subscriber Identity Module (SIM) card. The first base station and the second base station may be the same base station of the same cell, or may be different base stations of different cells.
It can be seen that the common receiving channel radio frequency circuit provided in the embodiment of the present invention can implement simultaneous call incoming to the first terminal card and the second terminal card by the base station through the receiving channel switch, thereby implementing receiving channel double-card double-pass of the first terminal card and the second terminal card.
Optionally, in some possible implementations, as shown in fig. 3, in a case that the low-frequency operating band and the high-frequency operating band of the antenna are separately tuned, and the at least two duplexers include a first low-frequency duplexer, a second low-frequency duplexer, a first high-frequency duplexer, and a second high-frequency duplexer, the receiving channel switch includes a low-frequency receiving channel switch and a high-frequency receiving channel switch, where:
the antenna switch is connected with the low-frequency receiving channel switch and the high-frequency receiving channel switch, the low-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer, and the high-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer;
the low-frequency receiving channel switch is configured to simultaneously connect a first low-frequency receiving channel and a second low-frequency receiving channel, where the first low-frequency receiving channel is configured to receive a first low-frequency incoming call signal sent by the first base station for the first terminal card, and the second low-frequency receiving channel is configured to receive a first low-frequency incoming call signal sent by the second base station for the second terminal card;
the high-frequency receiving channel switch is used for simultaneously switching on a first high-frequency receiving channel and a second high-frequency receiving channel, the first high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the first base station aiming at the first terminal card, and the second high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the second base station aiming at the second terminal card.
In one possible implementation manner, as shown in fig. 4, the antenna switch is a single-pole four-throw switch, the low-frequency receiving channel switch is a first dual-input dual-output single-pole two-throw switch, the high-frequency receiving channel switch is a second dual-input dual-output single-pole two-throw switch, the first low-frequency duplexer is a GSM850 duplexer, the second low-frequency duplexer is a GSM900 duplexer, the first high-frequency duplexer is a GSM1800 duplexer, and the second high-frequency duplexer is a GSM1900 duplexer.
Optionally, in some possible implementations, as shown in fig. 5, in the case that the low-frequency operating band and the high-frequency operating band of the antenna are synchronously tuned, the at least two duplexers include a first low-frequency duplexer, a second low-frequency duplexer, a first high-frequency duplexer, and a second high-frequency duplexer, the antenna switch is connected to the receiving channel switch, and the receiving channel switch is connected to the first low-frequency duplexer, the second low-frequency duplexer, the first high-frequency duplexer, and the second high-frequency duplexer.
In a possible implementation manner, as shown in fig. 6, the antenna switch is a single-pole four-throw switch, the receiving channel switch is a multiple-input multiple-output single-pole multiple-throw switch, the first low-frequency duplexer is a GSM850 duplexer, the second low-frequency duplexer is a GSM900 duplexer, the first high-frequency duplexer is a GSM1800 duplexer, and the second high-frequency duplexer is a GSM1900 duplexer.
Referring to fig. 7, fig. 7 is a schematic flow chart of a dual card dual pass method according to an embodiment of the present invention, consistent with the embodiments shown in fig. 2 to fig. 6. The double-card double-pass method is applied to a mobile terminal comprising a common receiving channel radio frequency circuit, wherein the common receiving channel radio frequency circuit comprises an antenna, an antenna switch, a receiving channel change-over switch and at least two duplexers; the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers; as shown, the method comprises:
s701, a first receiving channel and a second receiving channel are simultaneously connected through a receiving channel switch, where the first receiving channel is used to receive a first incoming call signal sent by a first base station for a first terminal card, and the second receiving channel is used to receive a second incoming call signal sent by a second base station for a second terminal card.
The first terminal card and the second terminal card may be SIM cards, for example.
It can be seen that the mobile terminal provided in the embodiment of the present invention can implement simultaneous call incoming to the first terminal card and the second terminal card by the base station through the receiving channel switch, thereby implementing receiving channel double-card double-pass of the first terminal card and the second terminal card.
Optionally, in some possible implementation manners, the low-frequency operating band and the high-frequency operating band of the antenna are separately tuned, and the receiving channel switch includes a low-frequency receiving channel switch and a high-frequency receiving channel switch under the condition that the at least two duplexers include a first low-frequency duplexer, a second low-frequency duplexer, a first high-frequency duplexer, and a second high-frequency duplexer, where: the antenna switch is connected with the low-frequency receiving channel switch and the high-frequency receiving channel switch, the low-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer, and the high-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer;
as shown in fig. 8, the implementation of the receiving channel switch in step S701 includes:
s801, simultaneously turning on a first low-frequency receiving channel and a second low-frequency receiving channel through the low-frequency receiving channel switch, where the first low-frequency receiving channel is used to receive a first low-frequency incoming call signal sent by the first base station for the first terminal card, and the second low-frequency receiving channel is used to receive a first low-frequency incoming call signal sent by the second base station for the second terminal card; or,
s802, simultaneously turning on a first high-frequency receiving channel and a second high-frequency receiving channel through the high-frequency receiving channel switch, where the first high-frequency receiving channel is used to receive a first high-frequency incoming call signal sent by the first base station for the first terminal card, and the second high-frequency receiving channel is used to receive a first high-frequency incoming call signal sent by the second base station for the second terminal card.
Wherein, antenna switch is single-pole four-throw switch, low frequency receiving channel change over switch is first two input dual output single-pole two-throw switch, high frequency receiving channel change over switch is second two input dual output single-pole two-throw switch, first low frequency duplexer is the GSM850 duplexer, the second low frequency duplexer is the GSM900 duplexer, first high frequency duplexer is the GSM1800 duplexer, the second high frequency duplexer is the GSM1900 duplexer.
Optionally, in some possible implementations, the low-frequency operating band and the high-frequency operating band of the antenna are synchronously tuned, and the at least two duplexers include a first low-frequency duplexer, a second low-frequency duplexer, a first high-frequency duplexer and a second high-frequency duplexer, where the antenna switch is connected to the receiving channel switch, and the receiving channel switch is connected to the first low-frequency duplexer, the second low-frequency duplexer, the first high-frequency duplexer and the second high-frequency duplexer.
Wherein, antenna switch is single-pole four-throw switch, receiving channel change over switch is multiple input multiple output single-pole multiple throw switch, first low frequency duplexer is the GSM850 duplexer, the second low frequency duplexer is the GSM900 duplexer, first high frequency duplexer is the GSM1800 duplexer, the second high frequency duplexer is the GSM1900 duplexer.
An embodiment of the present invention further provides a mobile terminal, as shown in fig. 9, including: a processor 101, a memory 102, a common receiving channel radio frequency circuit 103 and a communication bus 104; the processor 101, the memory 102 and the common receiving channel radio frequency circuit 103 are connected through a communication bus 104 and complete mutual communication; the processor 101 controls wireless communications with an external cellular network through the common receive channel radio circuit 103. The common receiving channel radio frequency circuit specifically comprises an antenna, an antenna switch, a receiving channel switch and at least two duplexers; wherein,
the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers;
the receiving channel switch is used for simultaneously switching on a first receiving channel and a second receiving channel, the first receiving channel is used for receiving a first incoming call signal sent by a first base station aiming at a first terminal card, and the second receiving channel is used for receiving a second incoming call signal sent by a second base station aiming at a second terminal card.
It can be seen that the mobile terminal provided in the embodiment of the present invention can implement simultaneous call incoming to the first terminal card and the second terminal card by the base station through the receiving channel switch, thereby implementing receiving channel double-card double-pass of the first terminal card and the second terminal card.
In addition, a specific implementation manner of the common receive channel radio frequency circuit 103 in the mobile terminal according to the embodiment of the present invention may be any one of the embodiments in fig. 3 to fig. 6.
As shown in fig. 10, for convenience of description, only the parts related to the embodiment of the present invention are shown, and details of the specific technology are not disclosed, please refer to the method part in the embodiment of the present invention. The mobile terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, and the like, taking the mobile terminal as the mobile phone as an example:
fig. 10 is a block diagram showing a partial structure of a cellular phone related to a mobile terminal provided by an embodiment of the present invention. Referring to fig. 10, the cellular phone includes: common receive channel radio frequency circuit 910, memory 920, first terminal card 930, second terminal card 940, sensor 950, audio circuit 960, Wireless Fidelity (WiFi) module 970, processor 980, and power supply 990. Those skilled in the art will appreciate that the handset configuration shown in fig. 10 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 10:
the common receive channel rf circuit 910 may be used for receiving and transmitting information. The method comprises the following steps: the antenna, an antenna switch, a receiving channel switch and at least two duplexers; the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers; the receive channel switch is configured to simultaneously switch on a first receive channel and a second receive channel, where the first receive channel is configured to receive a first incoming call signal sent by a first base station for a first terminal card 930, and the second receive channel is configured to receive a second incoming call signal sent by a second base station for a second terminal card 940.
The memory 920 may be used to store software programs and modules, and the processor 980 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 920. The memory 920 may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, an application program (touch operation detection function, etc.) required by at least one function, and the like; the storage data area may store data (such as a web page identifier, etc.) created according to the use of the mobile phone, and the like. Further, the memory 920 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The handset may also include at least one sensor 950, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 941 according to the brightness of ambient light, and the proximity sensor may turn off the display screen 941 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
Audio circuitry 960, speaker 961, microphone 962 may provide an audio interface between a user and a cell phone. The audio circuit 960 may transmit the electrical signal converted from the received audio data to the speaker 961, and the audio signal is converted by the speaker 961 to be played; on the other hand, the microphone 962 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 960, and then processes the audio data by the audio data playing processor 980, and then sends the audio data to, for example, another mobile phone through the RF circuit 910, or plays the audio data to the memory 920 for further processing.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 970, and provides wireless broadband Internet access for the user. Although fig. 10 shows the WiFi module 970, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 980 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 920 and calling data stored in the memory 920, thereby integrally monitoring the mobile phone. Alternatively, processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.
The handset also includes a power supply 990 (e.g., a battery) for supplying power to the various components, which may preferably be logically connected to the processor 980 via a power management system, thereby providing management of charging, discharging, and power consumption via the power management system.
Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
The common receive channel rf circuit shown in any of the embodiments of fig. 2 to 6 can be used for implementing the structure of the mobile phone.
In the embodiments shown in fig. 7 to fig. 8, the method flows of the steps may be implemented based on the structure of the mobile phone.
An embodiment of the present invention further provides a computer storage medium, where the computer storage medium may store a program, and the program includes, when executed, some or all of the steps of any one of the dual-card dual-pass methods described in the foregoing method embodiments.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (11)
1. A common receive channel radio frequency circuit, comprising: the antenna, an antenna switch, a receiving channel switch and at least two duplexers; wherein,
the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers;
the receiving channel switch is used for simultaneously switching on a first receiving channel and a second receiving channel, the first receiving channel is used for receiving a first incoming call signal sent by a first base station aiming at a first terminal card, and the second receiving channel is used for receiving a second incoming call signal sent by a second base station aiming at a second terminal card.
2. A common receive channel radio frequency circuit as claimed in claim 1, wherein in a case where the low frequency operating band and the high frequency operating band of said antenna are separately tuned, and said at least two duplexers include a first low frequency duplexer, a second low frequency duplexer, a first high frequency duplexer, and a second high frequency duplexer, said receive channel switch includes a low frequency receive channel switch and a high frequency receive channel switch, wherein:
the antenna switch is connected with the low-frequency receiving channel switch and the high-frequency receiving channel switch, the low-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer, and the high-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer;
the low-frequency receiving channel switch is configured to simultaneously connect a first low-frequency receiving channel and a second low-frequency receiving channel, where the first low-frequency receiving channel is configured to receive a first low-frequency incoming call signal sent by the first base station for the first terminal card, and the second low-frequency receiving channel is configured to receive a first low-frequency incoming call signal sent by the second base station for the second terminal card;
the high-frequency receiving channel switch is used for simultaneously switching on a first high-frequency receiving channel and a second high-frequency receiving channel, the first high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the first base station aiming at the first terminal card, and the second high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the second base station aiming at the second terminal card.
3. The common receive channel radio frequency circuit of claim 2, wherein the antenna switch is a single-pole four-throw switch, the low frequency receive channel switch is a first dual-input dual-output single-pole two-throw switch, the high frequency receive channel switch is a second dual-input dual-output single-pole two-throw switch, the first low frequency duplexer is a GSM850 duplexer, the second low frequency duplexer is a GSM900 duplexer, the first high frequency duplexer is a GSM1800 duplexer, and the second high frequency duplexer is a GSM1900 duplexer.
4. A common receive channel radio frequency circuit as claimed in claim 1, wherein in case of synchronous tuning of the low frequency operating band and the high frequency operating band of said antenna, said at least two duplexers comprise a first low frequency duplexer, a second low frequency duplexer, a first high frequency duplexer and a second high frequency duplexer, said antenna switch is connected to said receive channel switch, said receive channel switch is connected to said first low frequency duplexer, said second low frequency duplexer, said first high frequency duplexer and said second high frequency duplexer.
5. The common receive channel radio frequency circuit of claim 4, wherein the antenna switch is a single-pole four-throw switch, the receive channel switch is a multiple-input multiple-output single-pole multiple-throw switch, the first low frequency duplexer is a GSM850 duplexer, the second low frequency duplexer is a GSM900 duplexer, the first high frequency duplexer is a GSM1800 duplexer, and the second high frequency duplexer is a GSM1900 duplexer.
6. A double-card double-pass method is applied to a mobile terminal comprising a common receiving channel radio frequency circuit, and is characterized in that the common receiving channel radio frequency circuit comprises an antenna, an antenna switch, a receiving channel change-over switch and at least two duplexers; the antenna is connected with the antenna switch, the antenna switch is connected with the receiving channel switch, and the receiving channel switch is connected with the at least two duplexers; the method comprises the following steps:
and simultaneously switching on a first receiving channel and a second receiving channel through a receiving channel switching switch, wherein the first receiving channel is used for receiving a first incoming call signal sent by a first base station aiming at a first terminal card, and the second receiving channel is used for receiving a second incoming call signal sent by a second base station aiming at a second terminal card.
7. The method of claim 6, wherein the receive channel switch comprises a low frequency receive channel switch and a high frequency receive channel switch where the low frequency operating band and the high frequency operating band of the antenna are tuned separately and the at least two duplexers comprise a first low frequency duplexer, a second low frequency duplexer, a first high frequency duplexer, and a second high frequency duplexer, wherein: the antenna switch is connected with the low-frequency receiving channel switch and the high-frequency receiving channel switch, the low-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer, and the high-frequency receiving channel switch is connected with the first low-frequency duplexer and the second low-frequency duplexer;
the implementation of the receiving channel switch comprises:
simultaneously switching on a first low-frequency receiving channel and a second low-frequency receiving channel through the low-frequency receiving channel selector switch, wherein the first low-frequency receiving channel is used for receiving a first low-frequency incoming call signal sent by the first base station for the first terminal card, and the second low-frequency receiving channel is used for receiving a first low-frequency incoming call signal sent by the second base station for the second terminal card; or,
and simultaneously switching on a first high-frequency receiving channel and a second high-frequency receiving channel through the high-frequency receiving channel switching switch, wherein the first high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the first base station aiming at the first terminal card, and the second high-frequency receiving channel is used for receiving a first high-frequency incoming call signal sent by the second base station aiming at the second terminal card.
8. The method of claim 7, wherein the antenna switch is a single-pole four-throw switch, the low-frequency receive channel switch is a first dual-input dual-output single-pole double-throw switch, the high-frequency receive channel switch is a second dual-input dual-output single-pole double-throw switch, the first low-frequency duplexer is a GSM850 duplexer, the second low-frequency duplexer is a GSM900 duplexer, the first high-frequency duplexer is a GSM1800 duplexer, and the second high-frequency duplexer is a GSM1900 duplexer.
9. The method of claim 6, wherein the antenna switch connects the receive path switch, the receive path switch connecting the first low-frequency duplexer, the second low-frequency duplexer, the first high-frequency duplexer, and the second high-frequency duplexer, in the case where the low-frequency operating band and the high-frequency operating band of the antenna are synchronously tuned, and the at least two duplexers include a first low-frequency duplexer, a second low-frequency duplexer, a first high-frequency duplexer, and a second high-frequency duplexer.
10. The method of claim 9, wherein the antenna switch is a single-pole four-throw switch, the receive channel switch is a multiple-input multiple-output single-pole multiple-throw switch, the first low-frequency duplexer is a GSM850 duplexer, the second low-frequency duplexer is a GSM900 duplexer, the first high-frequency duplexer is a GSM1800 duplexer, and the second high-frequency duplexer is a GSM1900 duplexer.
11. A mobile terminal, comprising:
a processor, a memory, a communication bus, and the common receive channel radio frequency circuit of any of claims 1-5;
the processor, the memory and the common receiving channel radio frequency circuit are connected through the communication bus and complete mutual communication.
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