WO2017128796A1 - Double-channel mobile terminal and radio-frequency calibration system - Google Patents

Abstract

A double-channel mobile terminal, comprising: a master processor (10), a master radio-frequency circuit (101), a slave processor (20) and a slave radio-frequency circuit (201), wherein the master processor (10) is connected to the master radio-frequency circuit (101), and the slave processor (20) is connected to the slave radio-frequency circuit (201). The master processor (10) and the slave processor (20) are respectively provided with a USB differential signal line pin. The mobile terminal further comprises a communication connection module (30). The communication connection module (30) is used for connecting, when receiving a connection instruction sent by the master processor (10), the USB differential signal line pin of the master processor (10) and the USB differential signal line pin of the slave processor (20), so that the master processor (10) and the slave processor (20) establish a USB connection and conduct double-channel data merging processing. Also disclosed is a radio-frequency calibration system for a double-channel mobile terminal.

Description

Dual channel mobile terminal and RF calibration system Technical field

The present invention relates to the field of communications technologies, and in particular, to a dual channel mobile terminal and a radio frequency calibration system.

Background technique

Existing dual-channel mobile terminals, such as dual-card dual-standby mobile phones, can only realize simultaneous answering calls, but cannot achieve simultaneous Internet access. The key problem lies in the hardware structure of the first channel and the second channel in the dual-channel mobile terminal. The hardware structure is different. If the first channel can perform voice service and data service, the second channel can only perform voice service, that is, the user can use the card 1 to perform Internet access and call in the first channel, and the card 2 is used. The second channel can only be used to make calls but not to access the Internet.

Summary of the invention

In order to solve the above technical problem, the embodiment of the present invention provides a dual-channel mobile terminal and a radio frequency calibration system, which aims to solve the technical problem of realizing the simultaneous Internet access of a dual-channel mobile terminal on the premise of the existing dual-channel hardware structure.

To achieve the above objective, a first aspect of the embodiments of the present invention provides a dual-channel mobile terminal, where the dual-channel mobile terminal includes a main processor configured to perform first channel service processing and a main radio frequency circuit, and configured to perform a second a slave processor and a slave radio frequency circuit; the slave processor is coupled to the master radio frequency circuit; the slave processor is coupled to the slave radio frequency circuit; the master processor and the slave processor are Each of the USB differential signal line pins is disposed; the mobile terminal further includes a communication connecting device;

The communication communication device is configured to communicate a USB differential signal line pin of the main processor and a USB differential signal of the slave processor when receiving a connection instruction sent by the main processor a line pin for the host processor to establish a USB connection with the slave processor and perform dual channel data merge processing.

In the above solution, the communication communication device includes a detection signal output module and a switch chip; the detection signal output module is respectively connected to the main processor and the slave processor; and the plurality of switch ends of the switch chip respectively correspond to Connecting to the USB differential signal line of the main processor and the slave processor;

When the main processor is a USB host device, the slave processor is a USB slave device, and before performing dual channel data merging processing, the main processor outputs a first control signal to the switch chip to control the a switch chip is connected to the USB differential signal line pin of the main processor and the slave processor;

The main processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the slave processor to trigger the slave processor on its own USB differential signal line pin. Generating a differential signal thereon and outputting to the USB differential signal line pin of the main processor through the communication of the switch chip;

When the main processor detects the differential signal on its own USB differential signal line pin, initiating an enumeration process to the slave processor for establishing a USB connection with the slave processor and performing dual channel data merge processing .

In the above solution, the mobile terminal further includes an application processor, the main processor includes a master modem, and the slave processor includes a slave modem, and the application processor is integrated with the master modem.

In the above solution, when the main processor and the slave processor have established a USB connection, the application processor is configured to combine the data service data of the first channel with the data service data of the second channel.

In the above solution, the dual channel mobile terminal can be processed simultaneously by the primary modem of the first channel and the primary radio frequency circuit, the slave modem of the second channel, and the secondary radio frequency circuit. 4G data service.

In the above solution, the switch chip is a single-pole single-throw switch chip.

In the above solution, the main processor further includes a first control line pin, a second control line pin and a third control line pin; the slave processor further includes a power pin;

The single-pole single-throw switch chip includes a resident switch end and a non-resident switch end, and the resident switch end is connected to a USB differential signal line pin of the main processor, and the non-resident switch end and the slave processing USB differential signal line pin connection;

The single-pole single-throw switch chip further includes an enable pin, a level configuration pin, the first control line pin is connected to the enable pin, and the second control line pin is connected to the level The pin connection is configured, the third control line pin is connected to the signal input end of the detection signal output module, and the power supply pin of the slave processor is connected to the signal output end of the detection signal output module.

In the above solution, the main processor outputs a signal to the enable pin of the single-pole single-throw switch chip through the first control line pin to enable the single-pole single-throw switch chip;

The main processor outputs a signal to the level configuration pin of the single-pole single-throw switch chip through the second control line pin to control the resident switch end and the non-parking switch of the single-pole single-throw switch chip Terminal conduction;

The main processor outputs a signal to the signal input end of the detection signal output module through the third control line pin to control the detection signal output module to turn on or off the detection signal output.

A second aspect of the present invention provides a dual-channel mobile terminal, where the dual-channel mobile terminal includes a first processor configured to perform a first channel service processing and a first radio frequency circuit, and configured to perform a second channel service processing. And a second radio frequency circuit, a power management chip configured to manage power of the mobile terminal, and a USB socket configured to connect to the external device; the first processor is coupled to the first radio frequency circuit, a second processor is coupled to the second radio frequency circuit; the first processor is a master processor, and the second processor is a slave processor The first processor, the second processor, and the USB socket are respectively provided with differential signal line pins; the mobile terminal further includes a USB port multiplexing device;

The USB port multiplexing device is configured to, when receiving the first connectivity instruction sent by the first processor, connect the differential signal line pin of the first processor and the differential signal line of the USB socket a foot for establishing a USB communication channel between the first RF circuit and an external device connected to the USB socket; and when receiving the second communication command sent by the first processor, connecting the a differential signal line pin of a processor and a differential signal line pin of the second processor for establishing a USB communication channel between the first processor and the second RF circuit.

In the above solution, the USB port multiplexing device includes a detection signal output module and a switch chip; the detection signal output module is respectively connected to the first processor and the second processor; and the switch chip is multiple The switch ends are respectively connected to the differential signal line pins of the first processor, the second processor, and the USB socket;

When the first processor is a USB host device, the second processor is a USB slave device, and before performing USB communication, the first processor outputs a first control signal to the switch chip to control the a switch chip is connected to the differential signal line pins of the first processor and the second processor;

The first processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the second processor to trigger the second processor to be in its own differential signal line. Generating a differential signal on the pin and outputting to the differential signal line pin of the first processor through communication of the switch chip;

When the first processor detects the differential signal at its own differential signal line pin, initiating an enumeration process to the second processor for establishing a USB connection with the second processor to establish the A USB communication channel between a processor and the second RF circuit.

In the above solution, the power management chip is connected to the USB socket, and the power management a communication channel is disposed between the chip and the first processor;

When the mobile terminal inserts into the external device through the USB socket, if the power management chip detects a feedback signal output by the external device to the USB socket, performing a charging protocol interaction with the external device to determine the And an external device, and sending an external device access notification message to the first processor.

In the above solution, when the first processor and the second processor perform USB communication and the power management chip detects that the external device connected to the USB socket is a computer, the power management chip is The first processor sends a notification message of the computer access;

After receiving the notification message, the first processor controls the switch chip to connect the differential signal line pins of the first processor and the USB socket; and load the pin on the differential signal line pin Constant voltage to generate a differential signal and output to the differential signal line pin of the USB socket through the communication of the switch chip;

The first processor and the computer perform an enumeration process for establishing a USB connection with the computer to establish a USB communication channel between the first RF circuit and a computer connected to the USB socket, wherein when the computer detects the location When the differential signal is described, an enumeration process is initiated to the first processor, where the computer is a USB host device and the first processor is a USB slave device.

In the above solution, the switch chip is a single-pole double-throw switch chip; the first processor includes an application processor and a first modem, and the second processor includes a second modem.

In the above solution, the first processor further includes a first control line pin, a second control line pin and a third control line pin; the second processor further includes a first power pin; the power source The management chip includes a second power pin; the USB socket further includes a third power pin;

The single-pole double-throw switch chip includes a common switch end, a first switch switch end, and a second switch switch end, and the common switch end is connected to a differential signal line pin of the first processor, the first switch The end is connected to a differential signal line pin of the second processor, and the second switch end is connected to a differential signal line pin of the USB socket;

The single-pole double-throw switch chip further includes an enable pin and a level configuration pin, the first control line pin is connected to the enable pin, and the second control line pin is connected to the level Configuring a pin connection, the third control line pin is connected to a signal input end of the detection signal output module, and the first power supply pin is connected to a signal output end of the detection signal output module, the second A power pin is connected to the third power pin.

In the above solution, the first processor outputs a signal to the enable pin of the single-pole double-throw switch chip through the first control line pin to enable the single-pole double-throw switch chip;

The first processor outputs a signal to the level configuration pin of the single-pole double-throw switch chip through the second control line pin to control a common switch end and a first switch of the single-pole double-throw switch chip The switch end or the second switch end is turned on;

The first processor outputs a signal to the signal input end of the detection signal output module through the third control line pin to control the detection signal output module to turn on or off the detection signal output.

In the above solution, the detection signal output module is disposed inside the first processor or is disposed outside the first processor.

A third aspect of the embodiments of the present invention provides a radio frequency calibration system for a dual channel mobile terminal, including a radio frequency calibration device, where the radio frequency calibration system further includes the dual channel mobile terminal according to the second aspect;

The radio frequency calibration device is configured to perform radio frequency calibration on the first radio frequency circuit and the second radio frequency circuit of the dual channel mobile terminal by using a USB communication channel established by the USB port multiplexing device of the dual channel mobile terminal.

In the above solution, the radio frequency calibration device comprises a radio frequency tester and a computer, and the radio frequency tester and the computer are connected by a GPIB bus, wherein the computer passes the built-in calibration application to the radio frequency integrated The measuring instrument, the first RF circuit and the second RF circuit respectively send corresponding calibration commands and RF parameters for performing RF calibration and saving the calibration The obtained calibration parameters;

Wherein, when the radio frequency calibration device performs radio frequency calibration on the first radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the first radio frequency circuit, and the computer and the dual channel mobile The USB socket of the terminal is wired.

When the radio frequency calibration device performs radio frequency calibration on the second radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the second radio frequency circuit, and the computer and the dual channel mobile terminal The first processor is wirelessly connected.

In the above solution, the radio frequency calibration device includes a radio frequency tester, wherein the dual channel mobile terminal passes the built-in calibration application to the radio frequency tester, the first radio frequency circuit, and the second radio frequency circuit. Send corresponding calibration commands and RF parameters respectively to perform RF calibration and save the calibration parameters obtained after calibration;

Wherein, when the radio frequency calibration device performs radio frequency calibration on the first radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the first radio frequency circuit, and the radio frequency comprehensive measuring instrument and the The first processor of the dual channel mobile terminal is wirelessly connected;

When the radio frequency calibration device performs radio frequency calibration on the second radio frequency circuit of the dual channel mobile terminal, the radio frequency meter is wiredly connected to the second radio frequency circuit, and the radio frequency meter and the dual channel The first processor of the mobile terminal is wirelessly connected.

In the embodiment of the present invention, the dual-channel mobile terminal can communicate with the slave processor of the first channel and the slave processor of the second channel through the communication connection device to implement dual-channel data combination, thereby implementing simultaneous access to the dual-channel mobile terminal. In the embodiment of the present invention, a dual-channel mobile terminal can realize the combined processing of the dual-channel data service in the mobile terminal through a communication connection device, thereby satisfying the requirement of the user to increase the network speed and the like.

DRAWINGS

The drawings described herein are provided to provide a further understanding of the embodiments of the invention, Improper limitations to the invention. In the drawing:

1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention;

2 is a schematic diagram of functional modules of an embodiment of a dual dual-channel mobile terminal according to the present invention;

3 is a schematic diagram of functional modules of an embodiment of the communication communication device of FIG. 2;

4 is a schematic diagram of connection of major components in an embodiment of a dual-channel mobile terminal according to the present invention;

5 is a schematic diagram of connection of main components and pins thereof in an embodiment of a dual-channel mobile terminal according to the present invention;

6 is a schematic diagram of functional modules of an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention;

7 is a schematic diagram of functional modules of an embodiment of the USB port multiplexing device of FIG. 6;

FIG. 8 is a schematic diagram of connection of major components in an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention; FIG.

FIG. 9 is a schematic diagram of connection of main components and pins thereof in an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention; FIG.

10 is a schematic diagram of functional modules of another embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention;

11 is a schematic diagram of connection of major components in another embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention;

12 is a schematic diagram of functional modules of an embodiment of a radio frequency calibration system for a dual channel mobile terminal according to the present invention;

13 is a schematic diagram of a refinement function module of the radio frequency calibration device of FIG. 12;

14 is a schematic diagram of a connection circuit of a first embodiment of a radio frequency calibration system for a dual channel mobile terminal according to the present invention;

15 is a schematic diagram of a connection circuit of a second embodiment of a radio frequency calibration system for a dual channel mobile terminal according to the present invention;

16 is a schematic diagram of a connection circuit of a third embodiment of a radio frequency calibration system for a two-channel mobile terminal according to the present invention;

17 is a schematic diagram of a connection circuit of a fourth embodiment of a radio frequency calibration system for a dual channel mobile terminal of the present invention.

detailed description

The technical solution of the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

A mobile terminal embodying various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, the suffixes such as "module," "component," or "unit" used to denote an element are merely illustrative of the embodiments of the present invention, and do not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

The mobile terminal can be implemented in various forms. For example, the terminal described in the embodiments of the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device Mobile terminals of the like and fixed terminals such as digital TVs, desktop computers, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.

FIG. 1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention.

The mobile terminal 100 may include a user input unit 110, an output unit 120, a memory 130, a controller 140, a power supply unit 150, and the like. Figure 1 illustrates a mobile terminal having various components, but it should be understood that not all illustrated components are required to be implemented. Output unit 120 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner.

The output unit 120 may include a display unit 121 and the like. The display unit 121 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in the phone call mode, Display unit 121 can display a user interface (UI) or graphical user interface (GUI) associated with a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 121 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.

Meanwhile, when the display unit 121 and the touch panel are superposed on each other in the form of a layer to form a touch screen, the display unit 121 can function as an input device and an output device. The display unit 121 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. According to a particular desired embodiment, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown) . The touch screen can be used to detect touch input pressure as well as touch input position and touch input area.

The memory 130 may store a software program or the like for processing and control operations performed by the controller 140, or may temporarily store data (for example, a phone book, a message, a still image, a video, etc.) that has been output or is to be output. Moreover, the memory 130 may store data regarding various manners of vibration and audio signals that are output when a touch is applied to the touch screen.

The memory 130 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM). , read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like. Moreover, the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 130 through a network connection.

Controller 140 typically controls the overall operation of the mobile terminal. For example, controller 140 performs the control and processing associated with voice calls, data communications, video calls, and the like. The controller 140 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 150 receives external power or internal power under the control of the controller 140 and provides appropriate power required to operate the various components and components.

The various embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementations, the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein is implemented, in some cases such an embodiment may be at the controller 140 Implemented in the middle. For software implementations, implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 130 and executed by controller 140.

In addition, the mobile terminal 100 further includes an application processor 200 (Application Processor, AP), a master modem 310 and a primary radio frequency integrated circuit 320, a slave modem 410, and a slave radio frequency integrated circuit 420. The master modem 310 and the primary radio frequency integrated circuit 320 form a first channel for the dual channel mobile terminal to perform service processing, and the slave modem 410 and the slave radio frequency integrated circuit 420 form a second channel for the dual channel mobile terminal to perform service processing, wherein The application processor 200 is connected to the main modem 310 to receive the operation command triggered by the user and obtain the type corresponding to the operation instruction. Then, according to the type corresponding to the operation instruction, the operation instruction is correspondingly sent to the main modem 310 for processing.

Based on the above hardware structure of the mobile terminal and the communication system, various implementations of the method of the present invention are proposed example.

Embodiment 1

Referring to FIG. 2, FIG. 2 is a schematic diagram of functional modules of an embodiment of a dual-channel mobile terminal according to the present invention. In this embodiment, the dual-channel mobile terminal specifically includes a main processor 10 configured to perform first-channel service processing, a main radio frequency circuit 101, and a slave processor 20 and a slave radio frequency circuit 201 configured to perform second-channel service processing.

In this embodiment, the dual-channel mobile terminal further includes a communication communication device 30, and the main processor 10 and the slave processor 20 are respectively provided with USB differential signal line pins (that is, D+, D-data signal lines, and voltage-passing The change generates a differential signal, and at the same time, the data can be transmitted in the USB port specification. Therefore, in the embodiment, the USB differential signal line pin and the slave processor 20 are connected to the main processor 10 through the communication communication device 30. USB differential signal line pins, thereby implementing data communication between the main processor 10 and the slave processor 20 for data merging processing, that is, by establishing a communication channel between the main processor 10 and the slave processor 20, In turn, the related hardware resources in the dual channel are shared. For example, the first channel can be connected to the Internet and can be connected to the phone, while the second channel can only make calls, and the second channel can also access the Internet by sharing the related hardware of the first channel. Features.

In an embodiment, the dual channel mobile terminal further includes an application processor 200, wherein the main processor 10 includes a master modem 310, the slave processor 20 includes a slave modem 410, and the application processor 200 is integrated with the master modem 310, such as The integration is set on the same chip. Therefore, the data service and the voice service of the first channel can be completed by the application processor 200, the main modem 310, and the main radio frequency circuit 101, and can be completed by the communication communication device 30, the application processor 200, the slave modem 410, and the slave radio frequency circuit 201. The second channel of data services and voice services.

For example, the application processor 200 can receive an operation instruction triggered by a user, and acquire a type corresponding to the operation instruction, and then send the operation instruction to the main adjustment according to the type corresponding to the operation instruction. The modem 310, at this time, when the operation instruction is a network operation instruction (that is, performing data service), the network operation instruction can be simultaneously sent to the master modem 310 and the slave modem 410, and the dual channel mobile terminal can pass two modems. The dual channel provided improves communication efficiency, and in particular, the two modems can perform data transmission through the 4G network both the master modem 310 and the slave modem 410 when the type of operation command is a network operation command. Compared with the prior art, when the main modem 310 performs data services through the 4G network, the slave modem 410 can still perform data services through the 4G network without being dropped to the 3G or 2G network, so that the mobile terminal can significantly improve communication. Data transfer efficiency.

For example, in the case of a network service such as the Internet access, data transmission is simultaneously processed by the master modem 310 and the slave modem 410.

When the Internet access is performed through the LTE of the first USIM card corresponding to the primary modem 310, the data flow of the data channel is:

Uplink data: user data → application processor → master modem → main radio frequency integrated circuit → carrier network → internet network;

Downstream data: internet network → carrier network → main radio frequency integrated circuit → main modem → application processor → user data;

At the same time, when the Internet access is performed from the LTE of the second USIM card corresponding to the modem 410, the data flow of the data channel is:

Uplink data: user data→application processor→from modem→from radio frequency integrated circuit→operator network→internet network;

Downstream data: internet network → carrier network → from radio frequency integrated circuit → slave modem → application processor → user data.

In addition, in this embodiment, the setting of the connection instruction is not limited, and is specifically set according to actual needs. In this embodiment, the dual-channel mobile terminal can communicate with the slave processor 20 of the first channel and the slave processor 20 of the second channel through the communication communication device 30 to implement dual channel data merge. And realize the dual-channel mobile terminal to access the Internet at the same time. In this embodiment, the dual-channel data service can be combined and processed by the communication communication device 30 on the dual-channel mobile terminal, so that the user can meet the requirements of increasing the network speed and the like.

Referring to FIG. 3, FIG. 3 is a schematic diagram of functional modules of an embodiment of the communication communication device of FIG. Based on the above embodiment, in the embodiment, the communication communication device 30 includes a detection signal output module 301 and a switch chip 302.

Figure 4 is a connection diagram. The detection signal output module 301 is respectively connected to the main processor 10 and the slave processor 20; the plurality of switch terminals of the switch chip 302 are respectively connected to the USB differential signal line pins of the main processor 10 and the slave processor 20.

In this embodiment, when the main processor 10 is a USB host device and the slave processor 20 is a USB slave device, that is, when the main processor 10 is a USB host (USB host device), the slave processor 20 is a USB device (USB slave device). When the data merging processor is required, for example, the user sends a data request to the main processor 10 through the application processor 200 to start the dual channel data merging process. The specific implementation process is as follows:

(1) The main processor 10 outputs a first control signal to the switch chip 302 to control the switch chip 302 to communicate with the USB differential signal line pins of the main processor 10 and the slave processor 20, thereby physically turning on the main processor 10. a data transmission channel with the slave processor 20;

(2) The main processor 10 outputs a second control signal to the detection signal output module 301 to control the detection signal output module 301 to output a detection signal to the slave processor 20 to trigger the slave processor 20 to generate on its own USB differential signal line pin. The differential signal is output to the USB differential signal line pin of the main processor 10 through the communication of the switch chip 302;

In this step, the detection signal output module 301 can be selected as a DC-DC circuit module for generating a corresponding voltage for supplying the USB plug/unplug detection from the processor 20. In this embodiment, the detection signal output module 301 may be disposed inside the main processor 10 or external to the main processor 20, and may be set according to actual conditions. In this step, by The physical data transmission channel of the main processor 10 and the slave processor 20 is turned on. Therefore, the differential signal generated from the processor 20 on its own USB differential signal line pin will also be output to the USB differential signal of the main processor 10. On the line pin. In addition, the main processor 10 can further determine the device type of the USB device to be connected by using the received differential signal, such as a low-speed transmission device, a full-speed transmission device, a high-speed transmission device, and the like.

(3) When the main processor 10 detects a differential signal at its own USB differential signal line pin, an enumeration process is initiated to the slave processor 20 for establishing a USB connection with the slave processor 20 and performing a dual channel data combining process.

In this step, when detecting the differential signal outputted from the processor 20, the main processor 10 can determine that there is an access USB device, thereby initiating an enumeration process to the slave processor 20, thereby establishing with the slave processor 20. USB connection, and dual channel data merge processing can be performed after the USB connection is successfully established. The enumeration process in this step is the same as the prior art, and therefore will not be described in detail. The main processor 10 passes the enumeration process for determining the characteristics of the slave processor 20 to further determine which connection mode to use for USB connection with the slave processor 20.

In a specific embodiment, when the main processor 10 and the slave processor 20 have established a USB connection, the application processor 200 is configured to combine the data service data of the first channel with the data service data of the second channel. For example, if the first channel and the second channel both download resources on the same source address, the dual-channel mobile terminal performs the process of combining the data service data through the application processor 200, thereby improving the download speed of the resource, and The accumulation of resource download speeds.

In this embodiment, based on the hardware structure of the existing dual-channel mobile terminal, considering the problems of new hardware cost and hardware integration, the main processor 10 and the slave processor 20 are implemented by the communication communication device 30. The communication between the main processor 10 and the slave processor 20 is shared, thereby implementing dual channel data combining processing. In addition, in this embodiment, the switch chip 302 can also selectively implement the establishment and disconnection of the communication channel, and the USB connection can further improve the processing efficiency of the data, thereby improving the user experience. For example, to improve the speed of the Internet, and so on.

In a specific embodiment, the switch chip 302 can be selected as a single pole single throw switch chip.

FIG. 5 is a schematic diagram showing the connection of an embodiment of the dual-channel mobile terminal of the present invention. Wherein, the main processor (processor 1#) further includes a first control line pin (control line 1), a second control line pin (control line 2) and a third control line pin (control line 3); The processor (processor 2#) also includes a power supply pin (VBUS pin), and the detection signal output module can be selected as a DC-DC circuit module T1.

The single-pole single-throw switch chip (S1) includes a resident switch terminal (A1, B1), a non-stationary switch terminal (A2, B2), a resident switch terminal (A1, B1) and a host processor (processor 1#) USB The differential signal line pins (D+, D-) are connected, and the non-resident switch terminals (A2, B2) are connected to the USB differential signal line pins (D+, D-) of the slave processor (processor 2#);

The single-pole single-throw switch chip (S1) also includes an enable pin (EN pin), a level configuration pin (DIR pin), a first control line pin (control line 1) and an enable pin (EN lead). The second control line pin (control line 2) is connected to the level configuration pin (DIR pin), and the third control line pin (control line 3) is connected to the signal input end of the detection signal output module. The power supply pin of the processor (the VBUS pin of processor 2#) is connected to the signal output of the detection signal output module.

As shown in Figure 5, the process of establishing a USB connection between the host processor and the slave processor is as follows:

(1) The main processor (processor 1#) outputs a signal to the enable pin (EN pin) of the single-pole single-throw switch chip (S1) through the first control line pin (control line 1) to enable single-pole Throw the switch chip (S1), such as the processor 1# output control line 1 is low to enable the single-pole single-throw switch chip S1;

(2) The main processor (processor 1#) outputs a signal to the level configuration pin (DIR pin) of the single-pole single-throw switch chip (S1) through the second control line pin (control line 2) to control the single-pole The resident switch terminals (A1, B1) of the throw switch chip (S1) are turned on with the non-station switch terminals (A2, B2), for example, the processor 1# output control line 2 is at a high level, and thus the DIR pin is configured. Level If the level is high, the resident switch terminals (A1, B1) and the non-stationary switch terminals (A2, B2) are turned on.

In addition, when the USB connection is established by performing data merge processing between the main processor 10 and the slave processor 20, that is, the processor 1# is a USB host device, and the processor 2# is a USB slave device for USB connection, the main processor Further includes:

(3) The main processor (processor 1#) outputs a signal to the signal input terminal of the detection signal output module through the third control line pin (control line 3) to control the detection signal output module to turn on or off the detection signal output. Since the main processor 10 and the slave processor 20 are USB connections established between different components of the same device, the USB-based related protocol specifies that the USB slave device needs to output a differential signal to the USB host device, that is, it needs to bring its own Voltage) Therefore, in this embodiment, the differential signal is triggered by the detection signal output module, thereby informing the main processor (processor 1#) that there is an input of the USB slave device.

In this embodiment, when performing the layout of the components and devices of the dual-channel mobile terminal, the switch single-pole single-throw switch chip S1 needs to be as close as possible to the processor #2, thereby minimizing the influence of data path multiplexing on signal integrity. .

In this way, the embodiment of the present invention can communicate with the slave processor of the first channel and the slave processor of the second channel through the communication communication device to implement dual channel data combination, thereby implementing simultaneous access to the dual channel mobile terminal. In the embodiment of the present invention, a dual-channel mobile terminal can realize the combined processing of the dual-channel data service in the mobile terminal through a communication connection device, thereby satisfying the requirement of the user to increase the network speed and the like.

Embodiment 2

Referring to FIG. 6, FIG. 6 is a schematic diagram of functional modules of an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention. In this embodiment, the dual-channel mobile terminal specifically includes a first processor 600 configured to perform the first channel service processing, a first radio frequency circuit 6001, and a second processor 700 and a second radio frequency configured to perform the second channel service processing. The circuit 7001 is configured to manage the mobile terminal The power management chip 800 of the power source and the USB socket 40 configured to connect to the external device, wherein the first processor 600 is connected to the first RF circuit 6001, and the second processor 700 is connected to the second RF circuit 7001.

In the embodiment of the present invention, the dual-channel mobile terminal can simultaneously process the same or different 4G data services through the first processor 600 and the second processor 700, and when processing the 4G data service at the same time, the first processor needs to be performed. 600. The merging process of the data downloaded by the second processor 700. Further, if the data processing is required to be performed between the first processor 600 and the second processor 700, the first processor 600 and the second processor are required to be connected. The processor 700 is configured to perform data transmission. In this embodiment, the mobile terminal further includes a USB port multiplexing device 500, and the first processor 600 and the second processor 700 are respectively provided with differential signal line pins (that is, D+, D-data signal lines, and through voltages). The change generates a differential signal, and the data can be transmitted in the USB port specification. Therefore, in this embodiment, the differential signal line pin and the first processor 600 are connected through the USB port multiplexing device 500. The differential signal line pins of the second processor 700 further establish a USB communication channel between the first processor 600 and the second processor 700, that is, the first processor 600, the second processor 700, and the first RF circuit are established. USB communication channel between 6001.

In this embodiment, the settings of the first processor 600 and the second processor 700 are not limited, and the existing dual-channel mobile terminal is generally divided into a main processor and a slave processor, and the first processing is specifically performed in this embodiment. The device 600 will be described as a main processor. The main processor specifically includes the application processor 200 and the main modem 310 in the above embodiment, and the slave processor specifically includes the slave modem 410 in the above embodiment. It should be further noted that the first processor 600 and the second processor 700 may include an application processor, a modem, and a power management circuit, and are specifically configured according to actual needs (the power management circuit is not limited to one chip, for example, the first process) A plurality of PMIC circuits can be integrated on the device 600, and the PMIC circuit can also be independently disposed on other chips of the mobile terminal.

The application processor 200 can receive the operation instruction triggered by the user, and acquire the type corresponding to the operation instruction, and then send the operation instruction to the main modem 310 according to the type corresponding to the operation instruction. At this time, when the operation instruction is a network operation When the command (that is, performing data service), the network operation command can be simultaneously sent to the master modem 310 and the slave modem 410, and the dual channel mobile terminal can improve the communication efficiency through the two channels provided by the two modems, especially the two modems can be When the type of operation command is a network operation command, both the master modem 310 and the slave modem 410 complete the transmission of data through the 4G network. Compared with the prior art, when the main modem 310 performs data services through the 4G network, the slave modem 410 can still perform data services through the 4G network without being dropped to the 3G or 2G network, so that the mobile terminal can significantly improve communication. Data transfer efficiency.

For example, in the case of a network service such as the Internet access, data transmission is simultaneously processed by the master modem 310 and the slave modem 410.

When the Internet access is performed through the LTE of the first SIM card corresponding to the primary modem 310, the data flow of the data channel is:

Uplink data: user data → application processor → master modem → main radio frequency integrated circuit → carrier network → internet network;

Downstream data: internet network → carrier network → main radio frequency integrated circuit → main modem → application processor → user data;

At the same time, when the Internet access is performed from the LTE of the second SIM card corresponding to the modem 410, the data flow of the data channel is:

Uplink data: user data→application processor→from modem→from radio frequency integrated circuit→operator network→internet network;

Downstream data: internet network → carrier network → from radio frequency integrated circuit → slave modem → application processor → user data.

In addition, in this embodiment, in view of the fact that the general mobile terminal needs to pass through the USB socket 400 and the outside The device is connected. Therefore, in order to improve the utilization efficiency of the USB port of the mobile terminal and improve the hardware integration in the mobile terminal, and also to flexibly switch the communication channel between the RF calibration device and the two sets of RF circuits, in this embodiment, The first processor 600 can be further connected to an external device through the USB port multiplexing device 500, such as data transmission, charging, or radio frequency calibration. Therefore, in the embodiment, the USB socket 400 is also provided with a differential signal line pin. Therefore, in this embodiment, the differential signal line pin and the USB of the first processor 600 are connected through the USB port multiplexing device 500. The differential signal line pins of the socket 400, in turn, enable data communication between the first processor 600 and external devices for data transmission, charging, or radio frequency calibration.

In this embodiment, the settings of the first connectivity command and the second connectivity command are not limited, and are specifically set according to actual needs. It should be further noted that the USB port multiplexing device 500 in this embodiment is also applicable to other processor devices having a high-speed interface (such as USB), such as a dual-core computer. In this embodiment, through the USB port multiplexing device 500, the first processor 600 and the second processor 700 can be connected to establish a USB communication channel between the first processor 600 and the second RF circuit 7001, and can also be connected. The first processor 600 and the USB socket 400 establish a USB communication channel between the first RF circuit 6001 and an external device connected to the USB socket 400. In this embodiment, multiple USB communication channels can be established through a USB port on the mobile terminal, thereby implementing multiple multiplexing of the USB ports of the dual-channel mobile terminal and flexible switching of the USB communication channel, while improving the utilization of the USB port. It also simplifies the calibration operation of the dual-channel RF circuit.

Referring to FIG. 7, FIG. 7 is a schematic diagram of functional modules of an embodiment of the USB port multiplexing device of FIG. Based on the above embodiment, in the embodiment, the USB port multiplexing device 500 includes a detection signal output module 5001 and a switch chip 5002.

Figure 8 is a connection diagram. The detection signal output module 5001 is respectively connected to the first processor 600 and the second processor 700; the plurality of switch ends of the switch chip 5002 are respectively corresponding to the first The differential signal line pins of the processor 600, the second processor 700, and the USB socket 400 are connected.

In this embodiment, when the first processor 600 is a USB host device and the second processor 700 is a USB slave device, that is, when the first processor 600 is a USB host (USB host device), the second processor 700 is In the case of a USB device (USB slave device), when a data merge processor is required, for example, the user sends a data request to the first processor 600 through the application processor to start dual channel data merge processing. The specific implementation process is as follows:

(1) The first processor 600 outputs a first control signal to the switch chip 5002 to control the switch chip 5002 to communicate with the differential signal line pins of the first processor 600 and the second processor 700, thereby physically turning on the first a data transmission channel of the processor 600 and the second processor 700;

(2) The first processor 600 outputs a second control signal to the detection signal output module 5001 to control the detection signal output module 5001 to output a detection signal to the second processor 700 to trigger the second processor 700 at its own differential signal line pin. Generating a differential signal on the differential signal line pin of the first processor 600 through the communication of the switch chip 5002;

In this step, the detection signal output module 5001 can be selected as a DC-DC circuit module, and the circuit module is configured to generate a voltage for supplying the second processor 700 for USB plug/unplug detection. In this embodiment, the detection signal output module 5001 may be disposed inside the first processor 600 or external to the first processor 700, and may be set according to actual conditions. In this step, since the physical data transmission channel of the first processor 600 and the second processor 700 is turned on, the differential signal generated by the second processor 700 on the differential signal line pin of the second processor 700 is also output to the first The differential signal line pins of the processor 600. In addition, the first processor 600 can further determine the device type of the USB device to be connected by using the received differential signal, such as a low-speed transmission device, a full-speed transmission device, a high-speed transmission device, and the like.

(3) When the first processor 600 detects a differential signal at its own differential signal line pin, an enumeration process is initiated to the second processor 700 for establishing a USB connection with the second processor 700 and communicating.

In this step, when detecting the differential signal output by the second processor 700, the first processor 600 can determine that there is an access USB device, thereby initiating an enumeration process to the second processor 700, and thus The processor 700 establishes a USB connection, that is, establishes a USB communication channel between the first processor 600 and the second RF circuit 7001. The enumeration process in this step is the same as the prior art, and therefore will not be described in detail. The first processor 600 uses an enumeration process for determining features of the second processor 700 to further determine which connection mode is used to make a USB connection with the second processor 700.

In an embodiment of the dual-channel mobile terminal that multiplexes the USB port of the present invention, the power management chip 800 is connected to the USB socket 400, and the power management chip 800 and the first processor 600 are provided with a communication channel, and the communication channel can be transmitted and controlled. Command, status and other information, as shown in Figure 8.

In this embodiment, when the mobile terminal 800 is inserted into the external device through the USB socket 400, if the power management chip 800 detects the feedback signal output by the external device to the USB socket 400, the charging protocol is exchanged with the external device to determine the The external device, such as determining whether the external device is a charging device or a non-charging device, transmits an external device access notification message to the first processor 600.

In an embodiment of the dual-channel mobile terminal for multiplexing the USB port of the present invention, the process of establishing a USB connection between the first processor 600 and the external device when the first processor 600 and the second processor 700 perform the dual-channel data combining process. as follows:

(1) When the first processor 600 and the second processor 700 communicate and the power management chip 800 detects that the external device connected to the USB socket 400 is a computer, the power management chip 800 transmits the computer connection to the first processor 600. Incoming notification message, the form of the notification message is not limited;

(2) after receiving the notification message, the first processor 600 controls the switch chip 5002 to connect the differential signal line pins of the first processor 600 and the USB socket 400; and loads the set voltage on the differential signal line pins of the self. To generate a differential signal and output to the differential signal line pin of the USB socket 400 through the communication of the switch chip 5002;

(3) The first processor 600 performs an enumeration process with the computer for establishing a USB connection with the computer and communicating. In this embodiment, the computer functions as a USB host device, and the first processor 600 functions as a USB slave device. Therefore, the enumeration process is initiated by the computer, that is, when the computer detects the differential signal, the enumeration process is initiated to the first processor 600.

In an embodiment of the dual-channel mobile terminal that multiplexes the USB port of the present invention, the switch chip 5002 is a single-pole double-throw switch chip; the first processor 600 is a main processor, that is, the first processor 600 includes an application processor 200 and The first modem (i.e., master modem 310), and the second processor 700 includes a second modem (i.e., slave modem 410).

FIG. 9 is a schematic diagram of a connection of an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention, wherein the first processor (processor 1#) further includes a first control line pin (control line 1), a second control line pin (control line 2) and a third control line pin (control line 3); the second processor (processor 2#) further includes a first power supply pin (VBUS pin), a power management chip The (PMIC) includes a second power pin (VBUS pin), the USB socket (USB socket X1) further includes a third power pin (VBUS pin), and the detection signal output module is selectable as a DC-DC circuit module T1.

The single-pole double-throw switch chip (S1) includes a common switch terminal (A1, B1), a first switch switch terminal (A2, B2), a second switch switch terminal (A3, B3), and a common switch terminal (A1, B1) and a The differential signal line pins (D+, D-) of one processor (processor 1#) are connected, and the differential signal line pins of the first switching switch end (A2, B2) and the second processor (processor 2#) are connected. (D+, D-) connection, the second switch end (A3, B3) is connected to the differential signal line pins (D+, D-) of the USB socket (USB socket X1);

The single-pole double-throw switch chip (S1) also includes an enable pin (EN pin), a level configuration pin (DIR pin), a first control line pin (control line 1) and an enable pin (EN lead). The second control line pin (control line 2) is connected to the level configuration pin (DIR pin), and the third control line pin (control line 3) is connected to the signal input end of the detection signal output module. The first power pin (the VBUS pin of the processor 2#) is connected to the voltage output terminal of the detection signal output module, and the second The power supply pin (the VBUS pin of the PMIC) is connected to the third power supply pin (the VBUS pin of the USB socket X1).

Further optionally, as shown in FIG. 9, the control process of the first processor for USB port multiplexing is as follows:

(1) The first processor (processor 1#) outputs a signal to the enable pin (EN pin) of the single-pole double-throw switch chip (S1) through the first control line pin (control line 1) to enable single-pole Double-throw switch chip (S1), such as processor 1# output control line 1 is low level to enable single-pole double-throw switch chip S1;

(2) The first processor (processor 1#) outputs a signal to the level configuration pin (DIR pin) of the single-pole double-throw switch chip (S1) through the second control line pin (control line 2) to control the single-pole The common switch terminals (A1, B1) of the double-throw switch chip (S1) are turned on with the first switch terminal (A2, B2) or the second switch terminal (A3, B3), for example, the processor 1# output control line 2 is high level, and then the level of the DIR pin (such as a high level) is configured, so that the common switch terminals (A1, B1) and the first switch end (A2, B2) are turned on; otherwise, the processor 1 # Output control line 2 is low level, and then the level of the DIR pin (such as low level) is configured, so that the common switch terminals (A1, B1) and the second switch switch terminals (A3, B3) are turned on.

In addition, when the data is merged between the first processor 600 and the second processor 700 to establish a USB connection, that is, when the processor 1# is a USB host device and the processor 2# is a USB slave device, the USB connection is performed. The first processor further includes:

(3) The first processor (processor 1#) outputs a signal to the signal input terminal of the detection signal output module through the third control line pin (control line 3) to control the detection signal output module to turn on or off the voltage output. Since the first processor 600 and the second processor 700 are USB connections established between different components of the same device, the USB-based related protocol specifies that the USB slave device needs to output a differential signal to the USB host device, that is, Self-contained voltage), therefore, in the embodiment, the differential signal is triggered by the detection signal output module to notify the first processor The processor 1#) has an input from the USB slave device.

In this embodiment, when performing the layout of the components and devices of the dual-channel mobile terminal, the switch single-pole double-throw switch chip S1 needs to be as close as possible to the processor #2, thereby minimizing the influence of data path multiplexing on signal integrity. .

In the following, based on the connection mode of FIG. 9 described above, several cases of multiplexing of USB ports will be described in detail.

1. Communication between processor #1 and processor #2

In this example, the processor #1 is a USB host, and the processor #2 is a USB device. The processor #1 output control line 1 is a low level enable switch chip S1, and the output control line 2 is at a high level, so that the A1 pin of the switch S1 is connected to the A2 pin, and the B1 pin is connected to the B2 pin;

The processor #1 output control line 3 is a high level enable detection signal output module (such as the DC-DC circuit module T1), and outputs a corresponding voltage to the VBUS pin of the processor #2;

After the VBUS pin of processor #2 is powered up, the level of D+/D- changes. After processor #1 detects this change, it considers that there is a USB device inserted, and then initiates the enumeration process, processor #1. #2 Establish a USB connection.

2, external USB host (such as computer) / charger plugged in

At this time, according to the state of the processor #1, it is divided into the following two cases:

2.1 processor #1 is communicating with processor #2, at this time, the A1 pin of the switch chip S1 is connected with the A2 pin, and the B1 pin is connected with the B2 pin;

When the mobile terminal is inserted into the external device, the external device outputs a corresponding voltage to be loaded onto the VBUS of the USB socket X1. After the PMIC detects the voltage on the VBUS, it first performs the interaction of the charging protocol to judge the type of the external device. If it is judged that the inserted external device is:

(I) Charger, the PMIC informs the processor #1 through the communication channel, and the processor #1 continues to maintain communication with the processor #2 after receiving the notification, and the PMIC then turns on the charging channel to allow the charger to charge the battery;

(II) Computer, the PMIC informs the processor #1 through the communication channel, and after receiving the notification, the processor #1 loads the corresponding voltage on the USB data line D+ (or D-), and the output control line 3 is low. Turn off the output of the detection signal output module; processor #1 processor output control line 1 is the low level enable switch chip S1, the output control line 2 is low level, so that the A1 pin of the switch S1 is connected with the A3 pin, B1 The foot is connected to the B3 pin; at this time, after the computer detects that the level of the D+/D-foot has changed, it considers that the USB device is inserted, and then initiates the enumeration process, and the computer establishes a USB connection with the processor #1.

2.2 The processor #1 is not in communication with the processor #2. At this time, the A1 pin of the switch chip S1 is connected to the A3 pin, and the B1 pin is connected to the B3 pin. In this case, it is equivalent to the existing single-channel mobile terminal, so it is handled in the same way as the existing single-channel mobile terminal, and therefore will not be described in detail.

Referring to FIG. 10, FIG. 10 is a schematic diagram of functional modules of another embodiment of a dual-channel mobile terminal for multiplexing a USB port according to the present invention. Based on the foregoing embodiment, in the embodiment, the mobile terminal further includes an isolation circuit 900. The power management chip 800 is provided with a differential signal line pin, and the differential signal line pin of the power management core 800 passes through the isolation circuit 900 and the USB socket 400. The differential signal line is pin-connected, and the isolation circuit 900 is configured to isolate the interference when the power management chip 800 communicates with the first processor 600 and the second processor 700, as shown in FIG.

In this embodiment, the isolation circuit 900 can be an active circuit or a passive circuit, or an active and passive hybrid circuit.

Referring to FIG. 12, FIG. 12 is a schematic diagram of functional modules of an embodiment of a radio frequency calibration system for a dual channel mobile terminal according to the present invention. In this embodiment, the radio frequency calibration system includes a radio frequency calibration device 510 and the dual channel mobile terminal 520 described in the above embodiments.

In this embodiment, the radio frequency calibration device 510 is configured to perform the first radio frequency circuit 6001 and the second radio frequency circuit 7001 of the dual channel mobile terminal 520 through the USB communication channel established by the USB port multiplexing device 500 of the dual channel mobile terminal 520. RF calibration.

In this embodiment, the radio frequency calibration device 510 functions as an external device of the dual channel mobile terminal 520. The USB socket 400 of the dual-channel mobile terminal 520 can be connected to the dual-channel mobile terminal 520, and the USB communication channel established by the USB port multiplexing device 500 (including the first processor 600 and the first RF circuit 6001) a USB communication channel, and a USB communication channel between the first processor 600 and the USB socket 400), thereby establishing the RF calibration device 510 and the first RF circuit 6001 and the second by switching the two USB communication channels A USB communication channel between the RF circuits 7001.

For example, if the radio frequency calibration device 510 needs to perform radio frequency calibration on the first radio frequency circuit 6001, the radio frequency calibration device 510, the USB socket 400, the first processor 600, and the first radio frequency circuit 6001 can be established through the USB port multiplexing device 500. In the case of the USB communication channel, the RF calibration operation is performed. Similarly, if the RF calibration device 510 needs to perform radio frequency calibration on the second RF circuit 7001, the first processor 600 and the second processor can be established through the USB port multiplexing device 500. The USB communication channel between the processor 700 and the second RF circuit 7001, and the RF calibration device 510 only needs to establish a communication connection with the first processor 600 to perform a radio frequency calibration operation (note that the second processor 700 is For the slave processor, that is, the docking process with the user interface cannot be directly implemented).

In this embodiment, the external device (such as the radio frequency calibration device 510) connected to the USB socket 400 by the first processor 600 can be connected through the USB port multiplexing device 500, thereby establishing the connection between the first RF circuit 6001 and the USB socket 400. A USB communication channel between the external devices; and a first processor 600 and a second processor 700 are also connected to establish a USB communication channel between the first processor 600 and the second RF circuit 7001.

Through the embodiment, multiple USB communication channels can be established through a USB port on the dual-channel mobile terminal 520, thereby realizing multiple multiplexing of the USB ports of the dual-channel mobile terminal and flexible switching of the USB communication channel, and improving the USB port. The utilization process also simplifies the calibration operation process of the dual-channel RF circuit, that is, in the RF calibration process, by implementing the RF calibration device 510 and the two sets of RF circuits (the first RF circuit 6001 and the second RF circuit 7001) ) The flexible switching between the communication channels enables the radio frequency calibration of the two sets of radio frequency circuits to be completed under the premise that the dual-channel mobile terminal 520 is turned on, thereby improving the dual-channel mobile terminal by only one reset operation. 520 RF calibration efficiency.

Referring to FIG. 13, in an embodiment of the radio frequency calibration system of the dual-channel mobile terminal of the present invention, the radio frequency calibration device 510 includes a radio frequency meter 5101 and a computer 5102, and the radio frequency meter 5101 and the computer 5102 are connected through a universal interface bus GPIB. . In this embodiment, the computer 5102 sends corresponding calibration commands and radio frequency parameters to the radio frequency comprehensive measuring instrument 5101, the first radio frequency circuit 6001, and the second radio frequency circuit 7001 through the built-in calibration application to perform radio frequency calibration and save the calibration. The calibration parameters obtained.

As shown in FIG. 14, when the radio frequency calibration device 510 performs radio frequency calibration on the first radio frequency circuit 6001 of the dual channel mobile terminal 520, the radio frequency meter 5101 is wiredly connected to the first radio frequency circuit 6001, and the computer 5102 and the dual channel mobile terminal 520 are connected. The USB socket 400 is wired.

The dual-channel mobile terminal 520 establishes a USB connection with the computer 5102. The user only needs to manipulate the calibration application on the computer 5102 to generate a corresponding calibration command and radio frequency parameters, and the USB communication channel established by the USB port multiplexing device 500 (USB) The socket 400, the first processor 600, and the first RF circuit 6001) send corresponding calibration commands and radio frequency parameters to the first processor 600, so that the first processor 600 completes the setting of the calibration environment parameter of the first RF circuit 6001 and At the same time, the corresponding calibration command and radio frequency parameters are sent to the radio frequency measuring instrument 5101 through the GPIB bus, so that the radio frequency comprehensive measuring instrument 5101 completes the setting and operation of the calibration environment parameter of the radio frequency measuring instrument 5101 end; finally, the first processing is integrated. The result of the feedback from the device 600 and the radio frequency meter 5101 is completed, and the radio frequency calibration of the first radio frequency circuit 6001 is completed. The implementation and process of the specific radio frequency calibration are the same as those in the prior art, and therefore, no further description is made.

When the first RF circuit 6001 is calibrated, the A1 pin of the switch chip S1 needs to be connected to the A3 pin, and the B1 pin is connected to the B3 pin, so that the USB data pin of the first processor 600 is connected to the USB data pin of the USB socket 400. And then establish a USB communication channel for both.

After the first RF circuit 101 is calibrated, the first processor 600 controls the A1 pin of the switch chip S1 to connect to the A2 pin, and the B1 pin connects to the B2 pin, so that the USB data pin of the first processor 600 is connected to the second processor. The USB data pin of the 700, in turn, establishes a USB communication channel for both.

As shown in FIG. 15, when the radio frequency calibration device 510 performs radio frequency calibration on the second radio frequency circuit 7001 of the dual channel mobile terminal 520, the radio frequency meter 5101 and the second radio frequency circuit 7001 are wired, and the computer 5102 and the dual channel mobile terminal 520 are connected. The first processor 600 is wirelessly connected. The radio frequency calibration mode and process of the second radio frequency circuit 7001 are similar to those of the first radio frequency circuit 6001, and therefore are not described in detail.

It should be noted that after the radio frequency calibration is completed, the calibration parameters of the two radio frequency circuits may be saved into a non-volatile memory, which may be the memory of the first processor 600 and the second processor 700, or may be The memory shared by both. Finally, resetting the dual channel mobile terminal 520 by resetting enables the saved calibration parameters to take effect. In addition, the radio frequency meter 5101 and the first radio frequency circuit 6001 or the second radio frequency circuit 7001 may also be connected in a wireless manner.

Further optionally, after the RF calibration is completed, a corresponding calibration log file can also be generated and saved. For example, the calibration log file of the first RF circuit 6001 is saved in the computer, and the calibration log file of the second RF circuit 7001 can be saved on the cloud server for viewing by wireless transmission such as wifi.

In an embodiment of the radio frequency calibration system of the dual channel mobile terminal of the present invention, the radio frequency calibration device 510 includes a radio frequency measurement instrument 5101, wherein the dual channel mobile terminal 520 passes the built-in calibration application to the radio frequency measurement instrument 5101, the first radio frequency. The circuit 6001 and the second RF circuit 7001 respectively send corresponding calibration commands and radio frequency parameters for performing radio frequency calibration and saving calibration parameters obtained after calibration.

As shown in FIG. 16, when the radio frequency calibration device 510 performs radio frequency calibration on the first radio frequency circuit 6001 of the dual channel mobile terminal 520, the radio frequency meter 5101 is wired to the first radio frequency circuit 6001 and the radio frequency meter 5101 and the first The processor 600 is wirelessly connected.

The dual-channel mobile terminal 520 (that is, equivalent to the first processor 600) establishes a wireless connection (such as wifi, BT, etc.) with the radio frequency meter 5101, and the user only needs to generate a calibration application on the dual-channel mobile terminal 520 to generate a Corresponding calibration commands and radio frequency parameters, and corresponding calibration commands and radio frequency parameters are sent to the first processor 600 through the internal communication channel of the dual-channel mobile terminal 520, so that the calibration of the first radio frequency circuit 6001 is completed by the first processor 600. The setting and operation of the environmental parameters; at the same time, the corresponding calibration command and the radio frequency parameter are sent to the radio frequency measuring instrument 5101 via wifi, so that the radio frequency comprehensive measuring instrument 5101 completes the setting and operation of the calibration environment parameter of the radio frequency measuring instrument 5101 end; The radio frequency calibration of the first radio frequency circuit 6001 is completed by synthesizing the results of the feedback from the first processor 600 and the radio frequency meter 5101. The implementation and process of the specific radio frequency calibration are the same as those in the prior art, and therefore are not described in detail.

As shown in FIG. 17, when the radio frequency calibration device 510 performs radio frequency calibration on the second radio frequency circuit 7001 of the dual-channel mobile terminal 520, the radio frequency meter 5101 and the second radio frequency circuit 7001 are wired and the radio frequency meter 5101 and the dual channel are connected. The first processor 600 of the mobile terminal 520 is wirelessly connected. The radio frequency calibration mode and process of the second radio frequency circuit 7001 are similar to those of the first radio frequency circuit 6001, and therefore are not described in detail. In addition, the radio frequency meter 5101 and the first radio frequency circuit 6001 or the second radio frequency circuit 7001 may also be connected in a wireless manner.

In an embodiment of the radio frequency calibration system of the dual channel mobile terminal of the present invention, the radio frequency calibration device 510 includes a radio frequency meter 5101 and a computer 5102.

When the radio frequency calibration device 510 performs radio frequency calibration on the first radio frequency circuit 6001 of the dual channel mobile terminal 520, the radio frequency meter 5101 is wiredly connected to the first radio frequency circuit 6001, and the computer 5102 is wiredly connected to the USB socket 400 of the dual channel mobile terminal 520. The computer 5102 sends corresponding calibration commands and radio frequency parameters to the radio frequency meter 5101, the first radio frequency circuit 6001, and the second radio frequency circuit 7001 through the built-in calibration application to perform radio frequency calibration and save the calibration. The calibration parameters, the implementation manner and the process of the specific radio frequency calibration are the same as those of the above embodiment, and therefore will not be described in detail.

When the radio frequency calibration device 510 performs radio frequency calibration on the second radio frequency circuit 7001 of the dual channel mobile terminal 520, the radio frequency meter 5101 and the second radio frequency circuit 7001 are wiredly connected, and the first of the radio frequency meter 5101 and the dual channel mobile terminal 520 The processor 600 is wirelessly connected. The dual-channel mobile terminal 520 sends corresponding calibration commands and radio frequency parameters to the radio frequency tester 5101, the first radio frequency circuit 6001, and the second radio frequency circuit 7001 through the built-in calibration application to perform radio frequency calibration and save the calibration. The obtained calibration parameters, the implementation manner and the process of the specific radio frequency calibration are the same as those of the above embodiment, and therefore will not be described in detail.

In this way, the USB port multiplexing device of the present invention can connect the external device connected to the first processor and the USB socket to establish a USB communication channel between the first RF circuit and an external device connected to the USB socket; The first processor and the second processor are also connected to establish a USB communication channel between the first processor and the second RF circuit. The invention can establish multiple USB communication channels through a USB port on the mobile terminal, thereby realizing multiple multiplexing of the USB ports of the dual-channel mobile terminal and flexible switching of the USB communication channel, while improving the utilization of the USB port. It also simplifies the calibration operation of the dual-channel RF circuit.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention may be a software product in essence or in part contributing to the prior art. In the form of a computer software product stored in a storage medium (such as ROM / RAM, disk, CD), including a number of instructions to make a terminal device (can be a mobile phone, computer, server, air conditioner, or Network devices, etc.) perform the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

On the one hand, the embodiment of the present invention can connect the main processor of the first channel and the slave processor of the second channel to realize dual channel data merging through the communication connecting device, thereby realizing the simultaneous access of the dual channel mobile terminal to the Internet. In the embodiment of the present invention, a dual-channel mobile terminal can realize the combined processing of the dual-channel data service in the mobile terminal through a communication connection device, thereby satisfying the requirement of the user to increase the network speed and the like. On the other hand, through the USB port multiplexing device, the external device connected to the first processor and the USB socket can be connected to establish a USB communication channel between the first RF circuit and an external device connected to the USB socket; The first processor and the second processor are configured to establish a USB communication channel between the first processor and the second RF circuit. The invention can establish multiple USB communication channels through a USB port on the mobile terminal, thereby realizing multiple multiplexing of the USB ports of the dual-channel mobile terminal and flexible switching of the USB communication channel, while improving the utilization of the USB port. It also simplifies the calibration operation of the dual-channel RF circuit.

Claims (20)

A dual-channel mobile terminal, comprising: a main processor configured to perform first channel service processing and a main radio frequency circuit, and a slave processor and a slave radio frequency circuit configured to perform second channel service processing; a main processor is connected to the main radio frequency circuit; the slave processor is connected to the slave radio frequency circuit; the main processor and the slave processor are respectively provided with a USB differential signal line pin; the mobile terminal Also including a communication communication device; The communication communication device is configured to connect a USB differential signal line pin of the main processor and a USB differential signal line pin of the slave processor when receiving the connection instruction sent by the main processor The main processor establishes a USB connection with the slave processor and performs dual channel data merge processing. The dual-channel mobile terminal of claim 1 , wherein the communication communication device comprises a detection signal output module and a switch chip; and the detection signal output module is respectively connected to the main processor and the slave processor; The plurality of switch ends of the switch chip are respectively connected to the USB differential signal line pins of the main processor and the slave processor; When the main processor is a USB host device, the slave processor is a USB slave device, and before performing dual channel data merging processing, the main processor outputs a first control signal to the switch chip to control the a switch chip is connected to the USB differential signal line pin of the main processor and the slave processor; The main processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the slave processor to trigger the slave processor on its own USB differential signal line pin. Generating a differential signal thereon and outputting to the USB differential signal line pin of the main processor through the communication of the switch chip; When the main processor detects the differential signal on its own USB differential signal line pin, initiating an enumeration process to the slave processor for establishing a USB connection with the slave processor and performing dual channel data merge processing . A dual channel mobile terminal according to claim 2, wherein said mobile terminal further comprises an application processor, said main processor comprising a master modem, said slave processor comprising a slave modem, said application processor and said Master modem integration settings. The dual channel mobile terminal of claim 3, wherein the application processor is configured to compare data traffic data of the first channel with the second when the host processor and the slave processor have established a USB connection The data service data of the channel is merged. The dual-channel mobile terminal according to claim 4, wherein said dual-channel mobile terminal can simultaneously process 4G through a primary modem of said first channel and a primary radio frequency circuit, said slave modem of said second channel, and a slave radio frequency circuit Data business. A two-channel mobile terminal according to any one of claims 2 to 5, wherein the switch chip is a single-pole single-throw switch chip. The dual channel mobile terminal of claim 6 wherein said main processor further comprises a first control line pin, a second control line pin and a third control line pin; said slave processor further comprising a power supply Pin The single-pole single-throw switch chip includes a resident switch end and a non-resident switch end, and the resident switch end is connected to a USB differential signal line pin of the main processor, and the non-resident switch end and the slave processing USB differential signal line pin connection; The single-pole single-throw switch chip further includes an enable pin, a level configuration pin, the first control line pin is connected to the enable pin, and the second control line pin is connected to the level The pin connection is configured, the third control line pin is connected to the signal input end of the detection signal output module, and the power supply pin of the slave processor is connected to the signal output end of the detection signal output module. The dual channel mobile terminal of claim 7, wherein said main processor outputs a signal to said enable pin of said single-pole single-throw switch chip through said first control line pin to enable said Single pole single throw switch chip; Passing, by the main processor, the second control line pin to the single-pole single-throw switch chip The level configuration pin output signal is used to control the resident switch end of the single-pole single-throw switch chip to be turned on with the non-resident switch end; The main processor outputs a signal to the signal input end of the detection signal output module through the third control line pin to control the detection signal output module to turn on or off the detection signal output. A dual-channel mobile terminal includes a first processor configured to perform first channel service processing, a first radio frequency circuit, and a second processor configured to perform second channel service processing and a second radio frequency a circuit, a power management chip configured to manage power of the mobile terminal, and a USB socket configured to connect to the external device; the first processor being coupled to the first RF circuit, the second processor and the second a radio frequency circuit connection; the first processor is a main processor, the second processor is a slave processor, and the first processor, the second processor, and the USB socket are respectively provided with differential signals a line pin; the mobile terminal further includes a USB port multiplexing device; The USB port multiplexing device is configured to, when receiving the first connectivity instruction sent by the first processor, connect the differential signal line pin of the first processor and the differential signal line of the USB socket a foot for establishing a USB communication channel between the first RF circuit and an external device connected to the USB socket; and when receiving the second communication command sent by the first processor, connecting the a differential signal line pin of a processor and a differential signal line pin of the second processor for establishing a USB communication channel between the first processor and the second RF circuit. The dual-channel mobile terminal according to claim 9, wherein the USB port multiplexing device comprises a detection signal output module and a switch chip; and the detection signal output module is respectively associated with the first processor and the second processing The plurality of switch ends of the switch chip are respectively connected to the differential signal line pins of the first processor, the second processor, and the USB socket; When the first processor is a USB host device, the second processor is a USB slave device, and before performing USB communication, the first processor outputs a first control signal to the switch chip to control the a switch chip is connected to the differential signal line pins of the first processor and the second processor; The first processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the second processor to trigger the second processor to be in its own differential signal line. Generating a differential signal on the pin and outputting to the differential signal line pin of the first processor through communication of the switch chip; When the first processor detects the differential signal at its own differential signal line pin, initiating an enumeration process to the second processor for establishing a USB connection with the second processor to establish the A USB communication channel between a processor and the second RF circuit. The dual channel mobile terminal of claim 10, wherein the detection signal output module is disposed inside the first processor or is disposed outside the first processor. The dual-channel mobile terminal of claim 10, wherein the power management chip is connected to the USB socket, and a communication channel is disposed between the power management chip and the first processor; When the mobile terminal inserts into the external device through the USB socket, if the power management chip detects a feedback signal output by the external device to the USB socket, performing a charging protocol interaction with the external device to determine the And an external device, and sending an external device access notification message to the first processor. The dual-channel mobile terminal according to claim 12, wherein when the first processor and the second processor perform USB communication and the power management chip detects that the external device connected to the USB socket is a computer, the power management chip sends a notification message of the computer access to the first processor; After receiving the notification message, the first processor controls the switch chip to communicate a differential signal line pin of the first processor and the USB socket; and loading a set voltage on the self differential signal line pin to generate a differential signal and output to the USB socket through the communication of the switch chip Differential signal line pin; The first processor and the computer perform an enumeration process for establishing a USB connection with the computer to establish a USB communication channel between the first RF circuit and a computer connected to the USB socket, wherein when the computer detects the location When the differential signal is described, an enumeration process is initiated to the first processor, where the computer is a USB host device and the first processor is a USB slave device. The dual-channel mobile terminal according to any one of claims 10 to 13, wherein the switch chip is a single-pole double-throw switch chip; the first processor includes an application processor and a first modem, and the second The processor includes a second modem. The dual channel mobile terminal of claim 14, wherein the first processor further comprises a first control line pin, a second control line pin and a third control line pin; the second processor further The first power pin is included; the power management chip includes a second power pin; the USB socket further includes a third power pin; The single-pole double-throw switch chip includes a common switch end, a first switch switch end, and a second switch switch end, and the common switch end is connected to a differential signal line pin of the first processor, the first switch The end is connected to a differential signal line pin of the second processor, and the second switch end is connected to a differential signal line pin of the USB socket; The single-pole double-throw switch chip further includes an enable pin and a level configuration pin, the first control line pin is connected to the enable pin, and the second control line pin is connected to the level Configuring a pin connection, the third control line pin is connected to a signal input end of the detection signal output module, and the first power supply pin is connected to a signal output end of the detection signal output module, the second A power pin is connected to the third power pin. The dual channel mobile terminal of claim 15 wherein said first processor outputs a signal to said enable pin of said single pole double throw switch chip via said first control line pin To enable the single-pole double-throw switch chip; The first processor outputs a signal to the level configuration pin of the single-pole double-throw switch chip through the second control line pin to control a common switch end and a first switch of the single-pole double-throw switch chip The switch end or the second switch end is turned on; The first processor outputs a signal to the signal input end of the detection signal output module through the third control line pin to control the detection signal output module to turn on or off the detection signal output. A radio frequency calibration system for a dual channel mobile terminal, comprising a radio frequency calibration device, wherein the radio frequency calibration system further comprises the dual channel mobile terminal of any one of claims 9-16; The radio frequency calibration device is configured to perform radio frequency calibration on the first radio frequency circuit and the second radio frequency circuit of the dual channel mobile terminal by using a USB communication channel established by the USB port multiplexing device of the dual channel mobile terminal. The radio frequency calibration system for a two-channel mobile terminal according to claim 17, wherein said radio frequency calibration device is an external device of said two-channel mobile terminal, and is connected to said dual channel through a USB socket of said two-channel mobile terminal On the mobile terminal. The radio frequency calibration system of the two-channel mobile terminal of claim 17, wherein the radio frequency calibration device comprises a radio frequency tester and a computer, and the radio frequency tester and the computer are connected by a GPIB bus, wherein The computer sends corresponding calibration commands and radio frequency parameters to the radio frequency tester, the first radio frequency circuit, and the second radio frequency circuit respectively through a built-in calibration application to perform radio frequency calibration and save the calibration. Calibration parameters; Wherein, when the radio frequency calibration device performs radio frequency calibration on the first radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the first radio frequency circuit, and the computer and the dual channel mobile The USB socket of the terminal is wired. When the radio frequency calibration device performs radio frequency calibration on the second radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the second radio frequency circuit, the computer and the The first processor of the dual channel mobile terminal is wirelessly connected. A radio frequency calibration system for a two-channel mobile terminal according to claim 17, wherein said radio frequency calibration device comprises a radio frequency meter, wherein said two-channel mobile terminal passes said built-in calibration application to said radio frequency meter The first RF circuit and the second RF circuit respectively send corresponding calibration commands and RF parameters to perform RF calibration and save the calibration parameters obtained after calibration; Wherein, when the radio frequency calibration device performs radio frequency calibration on the first radio frequency circuit of the dual channel mobile terminal, the radio frequency tester is wiredly connected to the first radio frequency circuit, and the radio frequency comprehensive measuring instrument and the The first processor of the dual channel mobile terminal is wirelessly connected; When the radio frequency calibration device performs radio frequency calibration on the second radio frequency circuit of the dual channel mobile terminal, the radio frequency meter is wiredly connected to the second radio frequency circuit, and the radio frequency meter and the dual channel The first processor of the mobile terminal is wirelessly connected.

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