CN105893304A - Terminal supporting dual network data transmission and realization method thereof - Google Patents

Terminal supporting dual network data transmission and realization method thereof Download PDF

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Publication number
CN105893304A
CN105893304A CN201610186818.6A CN201610186818A CN105893304A CN 105893304 A CN105893304 A CN 105893304A CN 201610186818 A CN201610186818 A CN 201610186818A CN 105893304 A CN105893304 A CN 105893304A
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China
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described
usb
processor
pin
pmic
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CN201610186818.6A
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Chinese (zh)
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CN105893304B (en
Inventor
李春林
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努比亚技术有限公司
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/40Bus structure
    • G06F13/4063Device-to-bus coupling
    • G06F13/4068Electrical coupling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The invention discloses a terminal and method supporting dual network data transmission, wherein the terminal comprises a first processor, a second processor and a PMIC (Power Management Integrated Circuit), wherein the first processor supports to be set into a USB (Universal Serial Bus) host and/or a USB device; the second processor supports to be set into a USB device; the first processor is used for performing USB communication in a USB mode after the communication between the first processor and the second processor is triggered; and the PMIC is used for transmitting a control command and/or state information through a communication passage built between the PMIC and the first processor so as to trigger the communication between the first processor and the second processor, the USB charging communication and/or the USB normal communication.

Description

A kind of terminal supporting double network data transmission and its implementation

Technical field

The present invention relates to download technology, particularly relate to a kind of terminal supporting double network data transmission and realization side thereof Method.

Background technology

At present, the application of Intelligent mobile equipment is more and more extensive, and the function such as smart mobile phone, panel computer is more come The most powerful.Along with people are growing to the demand of message transmission rate, a lot of mobile devices use double modulation The mode of demodulator (modem) realizes double-channel data and downloads, and such as, mobile device can be by two The Global Subscriber identification card (USIM) of Zhang Butong blocks download of simultaneously surfing the Net, and forms twin-channel download data. Owing to final double-channel data to gather, carry out data aggregate etc. and process, then this relates to adopt Which kind of with physical channel carry out data transmission.

As it is shown in figure 1, one of them modem (such as MDM#1) with application processor (AP) Being integrated in a chip, another modem (such as MDM#2) is an other individual chips.Double Side, by respective RF transceiver and front-end module, antenna, obtains the data that eat dishes without rice or wine (air) transmits, It is aggregated into eventually in AP, carries out data aggregate etc. and process, carry out next step operation the most again (as downloaded Video playback etc.).The high-speed physical passage of two chip chambers is exactly the passage of data transmission, such as by logical Carry out data transmission by universal serial bus (USB) mode.

It addition, Intelligent mobile equipment the most all has external interface, carry out the copy etc. of data, the most also It is to utilize USB interface, uses USB mode to carry out data transmission.Meanwhile, equipment manufacturers research and development, During production equipment, also it is the factory mode such as the download operation being carried out program by these USB interface, for this In the application of a little different scenes, being all that USB mode is transmitted, the most also not having can be the most compatible Support the terminal that above-mentioned all different scenes communicate in USB mode.

Summary of the invention

In view of this, the embodiment of the present invention is desirable to provide a kind of terminal supporting double network data transmission and realization thereof Method, solve at least the problem that prior art exists.

The technical scheme of the embodiment of the present invention is achieved in that

A kind of terminal supporting double network data transmission of the embodiment of the present invention, described terminal includes: first processes Device, the second processor, power management integrated circuit PMIC;Wherein,

Described first processor support is set to USB (universal serial bus) main equipment USB host and/or general serial Bus driver equipment USB device, described second processor support is set to USB device, wherein, institute State first processor for after the communication triggered between first processor and described second processor, use USB Mode carries out usb communication;

PMIC, for by between described first processor set up communication port transmission control command and/or Status information, to trigger the communication between first processor and described second processor and the communication of USB charging And/or USB communicates normally.

In such scheme, described terminal also includes:

Duplex MODEM, is used for supporting double network data transmission, and respectively by respective RF transceiver, The data eating dishes without rice or wine to transmit downloaded by front-end module and antenna, by the data summarization downloaded respectively to same application In processor AP;

Described AP, for carrying out data aggregate process by the described data downloaded respectively;

Described duplex MODEM is divided into the first modem and second modem, described first modulation Demodulator and described AP are integrated in same described first processor, and described second modem is arranged In described second processor.

In such scheme, described terminal also includes: detection signal output apparatus;

First processor, for as USB host and use USB mode with as the of USB device When two processors carry out usb communication, export the first control line to enable detection signal output apparatus output effectively High level;

Described detection signal output apparatus, for exporting effective high level and being supplied to described second processor VBUS pin;

Described second processor, for making self D+ data wire/D-after the VBUS pin of self powers on The level of data wire changes;

Described first processor, is additionally operable to detect that the level of described second processor changes, and determines and works as Front is USB device insert state, then initiate enumeration process, sets up USB and connects.

In such scheme, described terminal also includes: USB socket X1 being connected with described PMIC;Described PMIC, is further used for:

After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is charger, opens and fill Electric channel, makes charger can be charged battery;Or,

After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is PC, by communication Passage notifies described first processor;

Described first processor, after being further used for receiving described notice, by voltage-drop loading in USB socket On the D+ data wire/D+ data wire of X1 so that PC can detect the D+/D-pin of USB socket X1 Level changes, and determines that current is USB device insert state, then initiates enumeration process, set up USB Connect.

In such scheme, USB socket X1 being connected with described PMIC;Described PMIC, is further used for: Detect that outside OTG equipment inserts the USB_ID pin that described USB socket X1 causes PMIC self After voltage pull-down, notify described first processor by communication port;

Described first processor, after being further used for receiving described notice, at described outside OTG equipment by electricity Pressure is carried on the D+ data wire/D+ data wire of USB socket X1, first processor self detected The level of D1+/D1-pin changes, and determines that current is USB device insert state, then initiates to enumerate Process, sets up USB and connects.

In such scheme, described terminal, also include:

The isolation circuit being connected with PMIC, for by PMIC USB circuit corresponding for described PMIC and institute State AP USB high-speed communication corresponding for AP to be separated by and leave;

The switch S1 being connected with first processor, is used for being set to twin-channel single-pole double-throw switch (SPDT), described S1 includes A1 pin, B1 pin ,/EN pin, DIR pin, A2 pin, B2 pin, A3 Pin, B3 pin;Wherein, A1 pin and B1 pin are set to common port, in described S1/EN Under the state that pin enables, by configuring the level of DIR pin, S1 is made to be connected to A2 pin, B2 pipe Foot or A3 pin and B3 pin;

The interrupt signal generator circuit being connected with first processor, for the high level signal VBUS2 by input Be converted to the interrupt signal of required level, be supplied to described first processor interruption detect line detect Use;

The diode D3 being connected with detection signal output apparatus, for stopping the VBUS of USB socket X1 Signal pours in down a chimney to detection signal output apparatus;

The diode D4 being connected with interrupt signal generator circuit, for the output of isolation detection signal output apparatus To interrupt signal generator circuit.

A kind of method supporting double network data transmission of the embodiment of the present invention, described method includes:

It is set to described first processor support USB (universal serial bus) main equipment USB host and/or general string Row bus drives equipment USB device, is set to described second processor support USB device;

Power management integrated circuit PMIC is by the communication port transmission control set up between described first processor System order and/or status information, to trigger the communication between first processor and described second processor and USB Communication and/or the USB of charging communicate normally.

In such scheme, the communication between described first processor and described second processor includes:

First processor is as USB host and uses USB mode and the second process as USB device When device carries out usb communication, export the first control line to enable the detection the highest electricity of signal output apparatus output Flat;

Detection signal output apparatus is exporting effective high level and is being supplied to the VBUS pipe of described second processor Foot;

Second processor makes the electricity of self D+ data wire/D-data wire after the VBUS pin of self powers on Put down and change;

First processor detects that the level of the second processor changes, and determines and currently inserts for USB device Enter state, then initiate enumeration process, set up USB and connect.

In such scheme, the communication of described USB charging, including:

After PMIC detects the voltage on the VBUS inserting described USB socket X1, it is charged agreement Mutual, mutual after, when the external equipment judging to insert described USB socket X1 is charger, Open charge tunnel, make charger can battery be charged;Or,

After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is PC, by communication Passage notifies described first processor;

After first processor receives described notice, by voltage-drop loading at the D+ data wire/D+ of USB socket X1 On data wire so that PC can detect that the level of the D+/D-pin of USB socket X1 changes, really It is USB device insert state before settled, then initiates enumeration process, set up USB and connect.

In such scheme, described USB communicates normally, including:

PMIC detects that outside OTG equipment inserts described USB socket X1 and causes PMIC's self After USB_ID pin voltage drags down, notify described first processor by communication port;

After first processor receives described notice, at described outside OTG equipment, voltage-drop loading is inserted at USB On the D+ data wire/D+ data wire of seat X1, the electricity of the D1+/D1-pin of first processor self detected Put down and change, determine that current is USB device insert state, then initiate enumeration process, set up USB Connect.

The terminal of the support of the embodiment of the present invention double network data transmission includes: first processor, the second processor, Power management integrated circuit (PMIC);Wherein, described first processor is set to support USB (universal serial bus) Main equipment (USB host) and/or USB (universal serial bus) drive equipment (USB device), and described second processes Device is set to support USB device, and wherein, described first processor is for triggering first processor and institute After stating the communication between the second processor, USB mode is used to carry out usb communication;PMIC for by with institute State the communication port transmission control command and/or status information set up between first processor, to trigger the first process Communication between device with described second processor and the communication of USB charging and/or USB communicate normally.Adopt By the embodiment of the present invention, the most compatible support between above-mentioned first processor and described second processor communication, And the communication of USB charging and/or all different scenes such as USB communication normally lead in USB mode The terminal of letter.

Accompanying drawing explanation

Fig. 1 is that the mode using duplex MODEM in prior art is to realize the terminal that double-channel data is downloaded Hardware architecture diagram;

Fig. 2 is the telecommunications architecture schematic diagram that embodiment of the present invention terminal communicates;

Fig. 3 is the terminal particular make-up structural representation using the embodiment of the present invention one application scenarios;

Fig. 4 is the terminal particular make-up structural representation using the another application scenarios of the embodiment of the present invention;

Fig. 5 is the schematic diagram of embodiment of the present invention method flow.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do furtherly referring to the drawings Bright.

Detailed description of the invention

Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit The present invention.

The terminal realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description, make With the suffix of such as " module ", " parts " or " unit " for representing element only for being conducive to this The explanation of bright embodiment, itself does not has specific meaning.Therefore, " module " can mix with " parts " Ground uses.

Terminal can be implemented in a variety of manners.Such as, the terminal described in the embodiment of the present invention can include Such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant (PDA, Personal Digital Assistant), panel computer (PAD), portable media player (PMP, Portable Media Player), the terminal of guider etc. and such as numeral TV, desk computer etc. fixing Terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except Being used in particular for outside the element of mobile purpose, structure according to the embodiment of the present invention can also apply to solid Determine the terminal of type.

Fig. 2 is the telecommunications architecture schematic diagram that embodiment of the present invention terminal communicates, as shown in Figure 2 Mobile terminal 100 may be constructed such that utilization via frame or the most wired and channel radio of packet transmission data Communication system and satellite-based communication system operate.The communication that the mobile terminal of the present embodiment is operable to System can use different air interfaces and/or physical layer.Such as, communication system the air interface used Including such as frequency division multiple access (FDMA, Frequency Division Multiple Access), time division multiple acess (TDMA, Time Division Multiple Access), CDMA (CDMA, Code Division Multiple Access) and UMTS (UMTS, Universal Mobile Telecommunications System) (especially, Long Term Evolution (LTE, Long Term Evolution)), Global system for mobile communications (GSM) etc..As non-limiting example, explained below relates to CDMA Communication system, but such teaching is equally applicable to other type of system.

With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 100, multiple base station (BS, Base Station) 270, base station controller (BSC, Base Station Controller) 275 and mobile switch Center (MSC, Mobile Switching Center) 280.MSC280 is configured to and public telephone switch Network (PSTN, Public Switched Telephone Network) 290 forms interface.MSC280 is also The BSC275 formation interface being configured to and base station 270 can be couple to via back haul link.Back haul link If can construct according to any one in the interface that Ganji knows, described interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system as shown in Figure 2 System can include multiple BSC275.

Each BS270 can service one or more subregion (or region), by multidirectional antenna or point to specific Each subregion that the antenna in direction covers is radially away from BS270.Or, each subregion can be by being used for Two or more antennas of diversity reception cover.Each BS270 may be constructed such that support multiple frequencies distribution, And the distribution of each frequency has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).

Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station Transceiver subsystem (BTS, Base Transceiver Station) or other equivalent terms.Such In the case of, term " base station " may be used for broadly representing single BSC275 and at least one BS270.Base Stand and can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be referred to as multiple cellular station.

As shown in Figure 2, broadcsting transmitter (BT, Broadcast Transmitter) 295 is by broadcast singal It is sent in system the mobile terminal 100 of operation.In fig. 2 it is shown that several global positioning systems (GPS) satellite 300.Satellite 300 helps to position at least one in multiple mobile terminals 100.

In fig. 2, depict multiple satellite 300, it is understood that be, it is possible to use any number of defend Star obtains useful location information.Substitute GPS tracking technique or outside GPS tracking technique, permissible Use other technology of the position that can follow the tracks of mobile terminal.It addition, at least one gps satellite 300 is permissible Optionally or additionally process satellite dmb transmission.

As a typical operation of wireless communication system, BS270 receives from various mobile terminals 100 Reverse link signal.Mobile terminal 100 generally participates in call, information receiving and transmitting communicates with other type of.Special The each reverse link signal determining base station 270 reception is processed in specific BS270.The data obtained It is forwarded to the BSC275 being correlated with.BSC provides call resource distribution and the soft handover included between BS270 The mobile management function of the coordination of process.The data received also are routed to MSC280 by BSC275, and it carries For the extra route service for forming interface with PSTN290.Similarly, PSTN290 and MSC280 Forming interface, MSC Yu BSC275 forms interface, and BSC275 correspondingly controls BS270 with will just It is sent to mobile terminal 100 to link signal.

Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.

Embodiment one:

The terminal of the support of the embodiment of the present invention double network data transmission, including: first processor, the second process Device, PMIC;Wherein, described first processor support is set to USB (universal serial bus) main equipment USB host And/or USB (universal serial bus) drives equipment USB device, described second processor support is set to USB Device, wherein, described first processor is for triggering between first processor and described second processor After communication, USB mode is used to carry out usb communication.And PMIC for by with described first processor Between the communication port transmission control command and/or status information set up, to trigger first processor and described second Communication between processor and the communication of USB charging and/or USB communicate normally.It need to be noted that It is that described second processor is also supported to be set to USB host, is simply to process with second in the present embodiment Device support is set to USB device and is illustrated.

It is pointed out here that PMIC can corresponding first processor and the second processor, be respectively Oneth PMIC and the 2nd PMIC, the two PMIC can be merged into a PMIC and occur, answers as follow-up With the PMIC in terminal concrete structure as shown in Figure 3-4 in scene.Described PMIC is except having the present embodiment In function, be also equipped with being powered for first processor, the function managements such as clock being provided, to this, if point For becoming a PMIC and the 2nd PMIC, be then: a PMIC be first processor be powered, Thering is provided the function managements such as clock, the 2nd PMIC is powered for the second processor, provides the function pipes such as clock Reason.

Here, as a example by 4G network, use the embodiment of the present invention to be specially the end supporting double 4G data transmission End, including: duplex MODEM, it is used for supporting double network data (such as double 4G data) transmission, and difference Downloaded the data eating dishes without rice or wine to transmit by respective RF transceiver, front-end module and antenna, will download respectively Data summarization in same application processor (AP).And described AP, for downloading described respectively Data carry out data aggregate process.Wherein, described duplex MODEM can be divided into the first modem And second modem, described first modem and described AP are integrated at same described first In reason device, described second modem is arranged in described second processor.Demodulated by this double modulation The structure of device, it is possible to achieve the communication between dual processors, the 4G data summarization that two sides are downloaded to CPU In carry out polymerization process, it is achieved the data copy process communicated in USB mode.

Embodiment two:

Based on embodiment one, trigger in the scene of the communication between first processor and described second processor, this The described terminal of inventive embodiments also includes: detection signal output apparatus;And first processor, for conduct USB host and use USB mode with when carrying out usb communication as second processor of USB device, Export the first control line (or referred to as control line 1) and export effective high level to enable detection signal output apparatus. Wherein, described detection signal output apparatus, for exporting effective high level and being supplied to described second process The VBUS pin of device.And described second processor, for make after the VBUS pin of self powers on from The level of body D+ data wire/D-data wire changes.And described first processor, it is additionally operable to institute be detected The level stating the second processor changes, and determines that current is USB device insert state, then initiates to enumerate Process, sets up USB and connects.

Embodiment three:

Based on embodiment one, in the scene of the communication triggering USB charging, the described terminal of the embodiment of the present invention, Also include: USB socket X1 being connected with described PMIC;Described PMIC, is further used for: detect After inserting the voltage on the VBUS of described USB socket X1, it is charged the mutual of agreement, the most complete After, when the external equipment judging to insert described USB socket X1 is charger, open charge tunnel, Charger is made can battery to be charged.

Or, described PMIC, it is additionally operable to the electricity on the VBUS inserting described USB socket X1 be detected After pressure, be charged the mutual of agreement, mutual after, when judging to insert described USB socket X1 When external equipment is PC, notify described first processor by communication port;Accordingly, at described first Reason device, after being further used for receiving described notice, by voltage-drop loading at the D+ data wire/D+ of USB socket X1 On data wire so that PC can detect that the level of the D+/D-pin of USB socket X1 changes, really It is USB device insert state before settled, then initiates enumeration process, set up USB and connect.

Embodiment four:

Based on above-described embodiment one, trigger in the scene that USB communicates normally, the embodiment of the present invention described Terminal also includes: USB socket X1 being connected with described PMIC;Described PMIC, is further used for: inspection Measure outside OTG equipment and insert the USB_ID pin electricity that described USB socket X1 causes PMIC self After pressure drags down, notify described first processor by communication port;And described first processor, use further After receiving described notice, at described outside OTG equipment by voltage-drop loading at the D+ number of USB socket X1 According on line/D+ data wire, detect that the level of the D1+/D1-pin of first processor self changes, really It is USB device insert state before settled, then initiates enumeration process, set up USB and connect.

In any one scheme of the invention described above embodiment, the described terminal of the embodiment of the present invention, also include: The isolation circuit being connected with PMIC, for by PMIC USB circuit corresponding for described PMIC and described AP Corresponding AP USB high-speed communication is separated by be left;And the switch S1 being connected with first processor, it is used for arranging For twin-channel single-pole double-throw switch (SPDT), described S1 includes A1 pin, B1 pin ,/EN pin, DIR Pin, A2 pin, B2 pin, A3 pin, B3 pin;Wherein, A1 pin and B1 pin are set Be set to common port, in described S1/EN pin enable, by configuring the level of DIR pin, S1 is made to be connected to A2 pin, B2 pin or A3 pin and B3 pin;And be connected with first processor Interrupt signal generator circuit, for the high level signal VBUS2 of input is converted in required level Break signal, be supplied to described first processor interruption detect line carry out detection use;And with detection signal The diode D3 that output circuit is connected, pours in down a chimney to detection for stopping the VBUS signal of USB socket X1 Signal output apparatus, in order to avoid causing damage to this circuit;The diode D4 being connected with interrupt signal generator circuit, For the output of isolation detection signal output apparatus to interrupt signal generator circuit, in order to avoid producing unnecessary touching Send out and interrupt.

Embodiment five:

Based on embodiment one, trigger in the scene of the communication between first processor and described second processor, this The described terminal of inventive embodiments also includes: detection signal output apparatus;And first processor, for conduct USB host and use USB mode with when carrying out usb communication as second processor of USB device, Exporting the second control line (or referred to as control line 2) is that low level enables switch chip S1, and exports the 3rd control Line processed (or referred to as control line 3) is that high level makes the A1 pin of switch S1 connect with A2 pin, and B1 manages Foot connects with B2 pin;Exporting the first control line (or referred to as control line 1) is that high level enables detection signal Output circuit;Detection signal output apparatus is used for exporting significant level and is supplied to the second process through diode D3 The VBUS pin of device.Second processor, for making self D+ after the VBUS pin of self powers on The level of data wire/D-data wire changes.And first processor is additionally operable to detect the electricity of the second processor Put down and change, determine that current is USB device insert state, then initiate enumeration process, set up USB Connect.

Embodiment six:

Based on embodiment one, trigger in the scene that USB communicates normally, the described terminal of the embodiment of the present invention Also include: USB socket X1 being connected with described PMIC, interrupt signal generator circuit;Described PMIC, Being further used for detecting that the external equipment inserting described USB socket X1 is PC, now exterior PC is inserted In the second road USB passage of terminal, PC out-put supply load the VBUS2 pipe of USB socket X1 On foot;Described interrupt signal generator circuit, for receiving the voltage of VBUS2 pin input, triggers and produces Interrupt signal, passes to first processor 1;And described first processor, it is further used for being detected by interruption After line detects described interrupt signal, exporting the second control line (or referred to as control line 2) is that low level enables Switch chip S1, output the 3rd control line (or referred to as control line 3) is low level, makes the A1 of switch S1 Pin connects with A3 pin, and B1 pin connects with B3 pin.And described second processor, use further In the voltage detecting that VBUS2 is loaded on the second processor self VBUS pin by diode D4, By voltage-drop loading on the D+ data wire of self USB of the second processor so that PC can detect at first The level of the D2+/D2-pin of reason device self changes, and determines that current is USB device insert state, Then initiate enumeration process, set up USB and connect.

Use the invention described above embodiment, as a example by 4G network, it is possible to achieve the communication between dual processors, will The 4G data that two sides are downloaded can be aggregated in a CPU, meanwhile, also can complete normal USB Communication, charging etc. operate, thus terminal can compatibility be supported to communicate between such as dual processors simultaneously, normal USB The data-transformation facility of all different scenes such as communication, charging, data copy.

In order to simplify example, after RF transceiver, RF front-end module and antenna etc. being omitted, Fig. 3-4 is to adopt With the device structure schematic diagram of the two of the embodiment of the present invention application scenarios.

Application scenarios one:

Equipment based on Fig. 3 composition structure, specific implementation process is as follows: by AP+MDM#1, MDM#2 Representing with processor #1, processor #2, meanwhile, this programme is not only applicable to the scheme containing modem, As long as the processor with high-speed interface.It addition, herein the processor of indication refer to comprise AP, Modem etc. are at interior chip or chipset.Processor #1 can support to be USB host or/and USB device, Processor #2 also can support to be USB host or/and USB device.In this example, processor #2 only regards USB device uses.

There is communication port can transmit the information such as control command, state between PMIC and processor 1#.

Isolation circuit D1 effect is to reduce the impact on AP USB high-speed communication of the PMIC USB circuit, should Circuit can be active or passive circuit or a combination thereof.

Detection signal output module T1, this circuit module, for producing the voltage of 5V, is used for supplying processor #2 carries out the plug/unplug detection of USB.In example, T1 is positioned at the outside of processor #1, and T1 also may be used alternatively To be positioned at the inside of processor #1.T1 accepts the control line of processor 1 and controls.

USB socket X1, in example as a example by Micro USB stand.

When device layout, it is proposed that by switch S1 close proximity to processor #2, reduce due to data path as far as possible The multiplexing impact on signal integrity.

Form structure based on the said equipment, implement step and divide following several situation:

(1) communication between processor #1 and processor #2:

With processor #1 for USB host in this example, processor #2 is USB device.Processor 1 is defeated Go out control line 1 and enable detection signal output module T1, be allowed to export effective high level and be supplied to processor #2 VBUS pin.After the VBUS pin of processor #2 powers on, the level of D+/D-can change, place After reason device #1 detects this change, it is believed that have USB device to insert, initiate enumeration process so that process Set up USB between device #1 and processor #2 to connect.

(2) during external USB host (such as PC)/charger inserts the terminal of the embodiment of the present invention:

When terminal is inserted in exterior PC/charger, PC/ charger output 5V power supply is loaded into USB seat On the VBUS of sub-X1.After PMIC detects the voltage on VBUS, first carry out the mutual of charge protocol, After Jiao Hu, communicated by isolation circuit and USB socket X1 by the D+/D-pin of PMIC, It is charger or PC for judging the charger type being connected in USB socket X1.Concrete, one Kind of situation is: if it is determined that insert be insert be charger time, then PMIC opens charge tunnel, allows Battery is charged by charger;Another kind of situation is: if it is determined that insert be PC time, then PMIC passes through Communication port informs processor #1, after processor #1 is notified, by 3.3V voltage-drop loading at the number of USB According on line D+, now, PC detects that the level of D+/D-foot changes, it is believed that have USB device to insert Entering, initiate enumeration process, the two is set up USB and connects.It need to be noted that: described PC detects The level of D+/D-foot changes, and D+/D-herein refers to the pin of USB socket X1, and PC is by number Connecting USB socket X1 according to line, therefore what PC detected is D+, D-pin of USB socket X1, it is believed that There is USB device to insert, initiate enumeration process.

(3) during outside OTG equipment inserts the terminal of the embodiment of the present invention:

Outside OTG equipment is inserted in terminal, is dragged down by the USB_ID foot of PMIC, and PMIC passes through Communication port informs processor #1, and 3.3V level is added in data wire D+ (or D-) by OTG equipment subsequently On, processor #1 detects that the level of D1+/D1-foot changes, it is believed that have USB device to insert, and sends out Playing enumeration process, the two is set up USB and connects.

It need to be noted that: PMIC can corresponding first processor and the second processor, respectively the One PMIC and the 2nd PMIC, the two PMIC can be merged into a PMIC and occur, as shown in Figure 3 PMIC in terminal concrete structure.

If processor 2 is partially due to download, calibrate, combine survey etc., it is also desirable to interact with PC, USB socket X1 needs to support two groups of USB, and the scheme of its modification is as shown in Figure 4.

Application scenarios two:

Equipment based on Fig. 4 composition structure, compared with the structure of Fig. 3, adds such as lower module:

Switch S1, this is twin-channel single-pole double throw (SPDT) switch, and A1, B1 are common ports, at/EN Foot enable state under, by configuring the level of DIR, make switch be connected to A2, B2 or A3, B3。

Interrupt signal generator circuit, the high level signal (VBUS2) of input is converted to required electricity by this circuit Flat interrupt signal, it is provided that detect line to the interruption of processor #1.

Diode D3 is to prevent the VBUS signal of X1 stand from pouring in down a chimney to detection signal output apparatus T1, This circuit is caused damage;

The effect of diode D4 is that the output of isolation detection signal output apparatus T1 is to interrupt signal generation module D2, interrupts in order to avoid producing unnecessary triggering.

Form structure based on the said equipment, implement step and divide following several situation:

(1) communication between processor #1 and processor #2:

With processor #1 for USB host in this example, processor #2 is USB device.Processor exports Control line 2 enables switch chip S1 for low level, and output control line 3 makes the A1 of switch S1 for high level Foot connects with A2 foot, and B1 foot connects with B2 foot;It is defeated that output control line 1 enables detection signal for high level Go out circuit T1, be allowed to export significant level and be supplied to the VBUS pin of processor #2 through diode D3.Place After the VBUS pin of reason device #2 powers on, the level of D+/D-can change, and processor #1 detects this After change, it is believed that have USB device to insert, initiating enumeration process, the two is set up USB and connects.

(2) external USB host (such as PC) inserts the second road USB passage of embodiment of the present invention terminal In:

When exterior PC is inserted in the second road USB passage of terminal, PC output 5V power supply is loaded into On the VBUS2 of USB socket X1, meanwhile, VBUS2 as the input of interrupt signal generator circuit D2, Trigger and produce interrupt signal, after passing to the interruption detection of processor 1#, processor 1# line detecting signal, place Reason device #1 processor output control line 2 enables switch chip S1 for low level, and output control line 3 is low level, The A1 foot making switch S1 connects with A3 foot, and B1 foot connects with B3 foot;

Owing to VBUS2 is carried on the VBUS detection foot of processor 2# by diode D4 simultaneously, place Reason device #2 detects the voltage on VBUS, by 3.3V voltage-drop loading on the data wire D+ of USB, this Time, PC detects that the level of D2+/D2-foot changes, it is believed that have USB device to insert, initiation piece Act process, the two is set up USB and connects.

It is to be herein pointed out first via USB passage refers to: D1+/D1-to the USB of processor #1 inserts The D1+/D1-of seat X1;Second road USB passage refers to: the D+/D-of processor #2 is by switch S1, even Receive the D2+/D2-of USB socket X1;So-called first via USB passage is relative to the second road USB passage For speech is for USB socket X1.

It need to be noted that: PMIC can corresponding first processor and the second processor, respectively the One PMIC and the 2nd PMIC, the two PMIC can be merged into a PMIC and occur, as shown in Figure 4 PMIC in terminal concrete structure.

Embodiment seven:

A kind of method supporting double network data transmission of the embodiment of the present invention, as it is shown in figure 5, described method bag Include:

Step 501, described first processor is set to support USB host and/or USB device, by institute State the second processor to be set to support USB device;

Step 502, power management integrated circuit PMIC are by the communication set up between described first processor Channel transfer control command and/or status information, to trigger leading between first processor and described second processor Letter and the communication of USB charging and/or USB communicate normally.

The most all there is external interface due to terminal, it is possible to use USB interface, use USB mode to enter Row data are transmitted, and carry out the copy etc. of data.Meanwhile, equipment manufacturers are when research and development, production equipment, also It is the factory mode such as the download operation being carried out program by these USB interface, uses the embodiment of the present invention, energy For the application of these different scenes, communicate in USB mode, it is proposed that a kind of energy is the most compatible to be supported The terminal that above-mentioned all different scenes communicate in USB mode.

In the embodiment of the present invention one embodiment, leading between described first processor and described second processor Letter includes: first processor is as USB host and uses USB mode and as the second of USB device When processor carries out usb communication, export the first control line the highest to enable detection signal output apparatus output Level;Detection signal output apparatus is exporting effective high level and is being supplied to the VBUS of described second processor Pin;Second processor makes self D+ data wire/D-data wire after the VBUS pin of self powers on Level changes;First processor detects that the level of the second processor changes, and determines current for USB Device insert state, then initiate enumeration process, sets up USB and connects.

In the embodiment of the present invention one embodiment, the communication of described USB charging, including: PMIC detects After voltage on the VBUS inserting described USB socket X1, it is charged the mutual of agreement, the completeest Bi Hou, when the external equipment judging to insert described USB socket X1 is charger, opens charge tunnel, Charger is made can battery to be charged;Or, detect on the VBUS inserting described USB socket X1 Voltage after, be charged the mutual of agreement, mutual after, when judging to insert described USB socket When the external equipment of X1 is PC, notify described first processor by communication port;First processor receives After described notice, by voltage-drop loading on the D+ data wire/D+ data wire of USB socket X1 so that PC Can detect that the level of the D1+/D1-pin of first processor self changes, determine current for USB Device insert state, then initiate enumeration process, sets up USB and connects.

In the embodiment of the present invention one embodiment, described USB communicates normally, including: PMIC detects The USB_ID pin voltage that described USB socket X1 causes PMIC self is inserted to outside OTG equipment After dragging down, notify described first processor by communication port;After first processor receives described notice, Voltage-drop loading on the D+ data wire/D+ data wire of USB socket X1, is examined by described outside OTG equipment The level of the D1+/D1-pin measuring first processor self changes, and determines current for USB device Insert state, then initiate enumeration process, sets up USB and connects.

It will be appreciated by those skilled in the art that the function that each unit in above-mentioned terminal is realized can refer to aforementioned The associated description of data reconstruction method understands.

It should be noted that in this article, term " include ", " comprising " or its any other variant meaning Containing comprising of nonexcludability, so that include the process of a series of key element, method, article or dress Put and not only include those key elements, but also include other key elements being not expressly set out, or also include for The key element that this process, method, article or device are intrinsic.In the case of there is no more restriction, by The key element that statement " including ... " limits, it is not excluded that including the process of this key element, method, thing Product or device there is also other identical element.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

Through the above description of the embodiments, those skilled in the art is it can be understood that arrive above-mentioned reality Execute example method to add the mode of required general hardware platform by software and realize, naturally it is also possible to by firmly Part, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the technical side of the present invention The part that prior art is contributed by case the most in other words can embody with the form of software product, This computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD), bag Include some instructions with so that a station terminal equipment (can be mobile phone, computer, server, air-conditioner, Or the network equipment etc.) perform the method described in each embodiment of the present invention.

These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every profit The equivalent structure made by description of the invention and accompanying drawing content or equivalence flow process conversion, or directly or indirectly transport It is used in other relevant technical fields, is the most in like manner included in the scope of patent protection of the present invention.

Claims (10)

1. the terminal supporting double network data transmission, it is characterised in that described terminal includes: first processes Device, the second processor, power management integrated circuit PMIC;Wherein,
Described first processor support is set to USB (universal serial bus) main equipment USB host and/or general serial Bus driver equipment USB device, described second processor support is set to USB device, wherein, institute State first processor for after the communication triggered between first processor and described second processor, use USB Mode carries out usb communication;
PMIC, for by between described first processor set up communication port transmission control command and/or Status information, to trigger the communication between first processor and described second processor and the communication of USB charging And/or USB communicates normally.
Terminal the most according to claim 1, it is characterised in that described terminal also includes:
Duplex MODEM, is used for supporting double network data transmission, and respectively by respective RF transceiver, The data eating dishes without rice or wine to transmit downloaded by front-end module and antenna, by the data summarization downloaded respectively to same application In processor AP;
Described AP, for carrying out data aggregate process by the described data downloaded respectively;
Described duplex MODEM is divided into the first modem and second modem, described first modulation Demodulator and described AP are integrated in same described first processor, and described second modem is arranged In described second processor.
Terminal the most according to claim 1, it is characterised in that described terminal also includes: detection signal Output circuit;
First processor, for as USB host and use USB mode with as the of USB device When two processors carry out usb communication, export the first control line to enable detection signal output apparatus output effectively High level;
Described detection signal output apparatus, for exporting effective high level and being supplied to described second processor VBUS pin;
Described second processor, for making self D+ data wire/D-after the VBUS pin of self powers on The level of data wire changes;
Described first processor, is additionally operable to detect that the level of described second processor changes, and determines and works as Front is USB device insert state, then initiate enumeration process, sets up USB and connects.
Terminal the most according to claim 1, it is characterised in that described terminal also includes: with described USB socket X1 that PMIC is connected;Described PMIC, is further used for:
After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is charger, opens and fill Electric channel, makes charger can be charged battery;Or,
After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is PC, by communication Passage notifies described first processor;
Described first processor, after being further used for receiving described notice, by voltage-drop loading in USB socket On the D+ data wire/D+ data wire of X1 so that PC can detect the D+/D-pin of USB socket X1 Level changes, and determines that current is USB device insert state, then initiates enumeration process, set up USB Connect.
Terminal the most according to claim 1, it is characterised in that the USB being connected with described PMIC Socket X1;Described PMIC, is further used for: detect that outside OTG equipment inserts described USB socket After X1 causes the USB_ID pin voltage of PMIC self to drag down, notified at described first by communication port Reason device;
Described first processor, after being further used for receiving described notice, at described outside OTG equipment by electricity Pressure is carried on the D+ data wire/D+ data wire of USB socket X1, first processor self detected The level of D1+/D1-pin changes, and determines that current is USB device insert state, then initiates to enumerate Process, sets up USB and connects.
6., according to the terminal described in any one of claim 1 to 5, it is characterised in that described terminal, also wrap Include:
The isolation circuit being connected with PMIC, for by PMIC USB circuit corresponding for described PMIC and institute State AP USB high-speed communication corresponding for AP to be separated by and leave;
The switch S1 being connected with first processor, is used for being set to twin-channel single-pole double-throw switch (SPDT), described S1 includes A1 pin, B1 pin ,/EN pin, DIR pin, A2 pin, B2 pin, A3 Pin, B3 pin;Wherein, A1 pin and B1 pin are set to common port, in described S1/EN Under the state that pin enables, by configuring the level of DIR pin, S1 is made to be connected to A2 pin, B2 pipe Foot or A3 pin and B3 pin;
The interrupt signal generator circuit being connected with first processor, for the high level signal VBUS2 by input Be converted to the interrupt signal of required level, be supplied to described first processor interruption detect line detect Use;
The diode D3 being connected with detection signal output apparatus, for stopping the VBUS of USB socket X1 Signal pours in down a chimney to detection signal output apparatus;
The diode D4 being connected with interrupt signal generator circuit, for the output of isolation detection signal output apparatus To interrupt signal generator circuit.
7. the method supporting double network data transmission, it is characterised in that described method includes:
It is set to described first processor support USB (universal serial bus) main equipment USB host and/or general string Row bus drives equipment USB device, is set to described second processor support USB device;
Power management integrated circuit PMIC is by the communication port transmission control set up between described first processor System order and/or status information, to trigger the communication between first processor and described second processor and USB Communication and/or the USB of charging communicate normally.
Method the most according to claim 7, it is characterised in that described first processor and described second Communication between processor includes:
First processor is as USB host and uses USB mode and the second process as USB device When device carries out usb communication, export the first control line to enable the detection the highest electricity of signal output apparatus output Flat;
Detection signal output apparatus is exporting effective high level and is being supplied to the VBUS pipe of described second processor Foot;
Second processor makes the electricity of self D+ data wire/D-data wire after the VBUS pin of self powers on Put down and change;
First processor detects that the level of the second processor changes, and determines and currently inserts for USB device Enter state, then initiate enumeration process, set up USB and connect.
Method the most according to claim 7, it is characterised in that the communication of described USB charging, bag Include:
After PMIC detects the voltage on the VBUS inserting described USB socket X1, it is charged agreement Mutual, mutual after, when the external equipment judging to insert described USB socket X1 is charger, Open charge tunnel, make charger can battery be charged;Or,
After the voltage on the VBUS inserting described USB socket X1 being detected, it is charged the mutual of agreement, After Jiao Hu, when the external equipment judging to insert described USB socket X1 is PC, by communication Passage notifies described first processor;
After first processor receives described notice, by voltage-drop loading at the D+ data wire/D+ of USB socket X1 On data wire so that PC can detect that the level of the D+/D-pin of USB socket X1 changes, really It is USB device insert state before settled, then initiates enumeration process, set up USB and connect.
Method the most according to claim 7, it is characterised in that described USB communicates normally, bag Include:
PMIC detects that outside OTG equipment inserts described USB socket X1 and causes PMIC's self After USB_ID pin voltage drags down, notify described first processor by communication port;
After first processor receives described notice, at described outside OTG equipment, voltage-drop loading is inserted at USB On the D+ data wire/D+ data wire of seat X1, the electricity of the D1+/D1-pin of first processor self detected Put down and change, determine that current is USB device insert state, then initiate enumeration process, set up USB Connect.
CN201610186818.6A 2016-03-28 2016-03-28 A kind of terminal and its implementation for supporting double network data transmission CN105893304B (en)

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