CN101577986B - Mobile communication terminal - Google Patents

Mobile communication terminal Download PDF

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Publication number
CN101577986B
CN101577986B CN2009101464182A CN200910146418A CN101577986B CN 101577986 B CN101577986 B CN 101577986B CN 2009101464182 A CN2009101464182 A CN 2009101464182A CN 200910146418 A CN200910146418 A CN 200910146418A CN 101577986 B CN101577986 B CN 101577986B
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China
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described
module
passage
application processing
usb
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CN2009101464182A
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Chinese (zh)
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CN101577986A (en
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张永亮
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中兴通讯股份有限公司
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Abstract

The invention discloses a mobile communication terminal, comprising a five-pin USB connector, an application processing module, a CDMA wireless module, a bluetooth module, an audio coding and decodingmodule, a WIFI module and a first analog switch; wherein, the application processing module comprises a UART channel and a USB channel; the first analog switch is connected with the USB connector and the application processing module and is used for switching the UART channel and the USB channel; the application processing module is used for receiving and outputting debugging information from the CDMA wireless module via the UART channel under the condition that the first analog switch is switched to the UART channel, and for providing programs to the CDMA wireless module via the USB channel under the condition that the first analog switch is switched to the USB channel; the CDMA wireless module is used for sending the debugging information to the application processing module via the UART channel and for downloading the programs from the application processing module via the USB channel. The mobile communication terminal solves the problem of complex debugging information output and download program interface setting.

Description

Mobile communication terminal

Technical field

The present invention relates to the communications field, in particular to a kind of mobile communication terminal.

Background technology

WLAN (wireless local area network) (Wireless Local Area Network, abbreviate WLAN as) based on Internet protocol (Internet Protocol, abbreviate IP as), can provide the high-speed data of certain limit to connect, can the mutual communication and the network system that realizes resource-sharing.The characteristics of WLAN (wireless local area network) essence are not re-use telecommunication cable computer and network is coupled together, but connect by wireless mode, thereby make moving of the structure of network and terminal more flexible.It adopts 2.4GHz or 5.8GHz industrial science medical wireless electricity broadcast band communication (Industrial, Scientific, Medical abbreviate ISM as) frequency to transmit, and transmission range can reach tens meters, adopts special technique can reach hundreds of rice.WLAN has series of standards such as 802.11a/b/g/n.

Wireless compatibility authentication (Wireless Fidelity abbreviates WIFI as) is not a technical standard at a certain WLAN standard.Because IEEE 802.11b is the wireless local area network technology standard that relatively early proposes, therefore, early stage people just are equal to WIFI to IEEE 802.11b standard.But along with the variation of wireless technology standard, variation has correspondingly taken place in the intension of WIFI because it at be whole WLAN field.

Along with using wireless router in more and more families, simultaneously domesticly also extensively making " wireless city ", at home and city wireless access node (Access point, abbreviate AP as, wherein, AP, session point or network bridge, be one and comprise very wide title, it not only comprises simple property WAP (wireless access point), is the general designation that wireless router comprises kind equipments such as radio network gateway, wireless bridge too) the covering place utilizes the wireless digital connection of mobile terminal into network to carry out data whenever and wherever possible and voice service becomes a kind of widespread demand; Simultaneously owing to use the user of the digital mobile terminal of WIFI function mostly to be the middle and high end user greatly, for intelligentized demand than higher, such as multi-faceted requirements such as speech, data, image, music and multimedias.Becoming more and more important to support the WIFI function for existing portable terminal increases the WIFI module, is being to increase the problem that there is the following aspects in the WIFI module in code division multiple access (Code Division Multiple Access the abbreviates CDMA as) system terminal:

One, in the mobile terminal design process, need debug the output Debugging message to terminal, simultaneously, also need to download corresponding software in each functional module of terminal, at present, the output Debugging message is downloaded software other interface of branch, Interface design complexity need be set.

Two, the audio frequency handover mechanism between WIFI module, application processing module, CDMA module and the bluetooth module is unsound.

Three, the WIFI module needs bigger electric current, might cause the under-supply situation such as unusual shutdown that causes of terminal power supply.

Summary of the invention

At the output Debugging message of correlation technique and the interface that downloads be provided with complexity, audio frequency handover mechanism unsound, may cause that the terminal power supply is under-supply to be caused the problem of unusual shutdown and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of improved mobile communication terminal, one of to address the above problem at least.

To achieve these goals, according to an aspect of the present invention, provide a kind of mobile communication terminal.

According to mobile communication terminal of the present invention, comprise 5 pin general-purpose serial bus USB connectors, application processing module, code division multiple access cdma wireless module, bluetooth module, audio coding decoding module, wireless compatibility authentication WIFI module, wherein, application processing module comprises universal asynchronous reception/dispensing device UART passage and USB passage, above-mentioned mobile communication terminal also comprises: first analog switch, be connected to 5 pin USB connector and application processing modules, be used to switch UART passage and USB passage; Application processing module also is used for switching under the situation of UART passage at first analog switch, by the UART passage receive and output from the Debugging message of cdma wireless module, switch at first analog switch under the situation of USB passage, provide program to the cdma wireless module by the USB passage; The cdma wireless module also is used for sending Debugging message by the UART passage to application processing module, downloads from application processing module by the USB passage.

Preferably, the USB passage comprises a USB passage and the 2nd USB passage, and wherein, a USB passage is connected to first analog switch, and the 2nd USB passage is connected to the cdma wireless module; Application processing module also is used for downloading by a USB passage.

Preferably, application processing module also comprises USB slave unit end, is used for downloading by a USB passage; Application processing module also comprises USB main equipment end, is used to receive the program that USB slave unit end is transmitted; The cdma wireless module also is used for downloading from USB main equipment end by the 2nd USB passage.

Preferably, the UART passage comprises a UART passage and the 2nd UART passage, and wherein, a UART passage connects first analog switch, and the 2nd UART passage connects the cdma wireless module; Application processing module also is used for the Debugging message by UART passage output application processing module.

Preferably, the cdma wireless module also is used for sending to application processing module by the 2nd UART passage the Debugging message of cdma wireless module; Application processing module also is used to receive and export by a UART passage Debugging message of cdma wireless module.

Preferably, 5 pin USB connector comprise: pin D+ and pin D-, be used for switching under the situation of USB passage at first analog switch, be connected to the pin D+ and the pin D-of USB passage, switch at first analog switch under the situation of UART passage, be connected to the reception Rx passage/transmission Tx passage of UART passage.

Preferably, application processing module also is used to control the unlatching of cdma wireless module and/or close.

Preferably, the WIFI module comprises the WIFI module, and the WIFI module comprises: the IP phone submodule is used for carrying out control command and encoding and decoding speech according to the indication of carrying out application processing module; WLAN (wireless local area network) modulation submodule is used for realizing interface control function according to the indication of carrying out application processing module.

Preferably, above-mentioned mobile communication terminal also comprises: second analog switch, and an end is connected to bluetooth module, and the other end is connected to cdma wireless module or WIFI module, is used to receive the digital audio stream from cdma wireless module or WIFI module; Application processing module also is used for controlling second analog switch by the high-low level of general input/output port.

Preferably, the pattern of the pattern of cdma wireless module and WIFI module is holotype or from pattern.

Preferably, above-mentioned mobile communication terminal also comprises: hardware start voltage is provided with module, is used to detect the hardware start voltage of mobile communication terminal, and testing result is sent to application processing module, so that application processing module is determined software start voltage.

Preferably, above-mentioned mobile communication terminal also comprises: WIFI modular power source supply module is used for providing power supply to the WIFI module.

Preferably, the audio coding decoding module also comprises: the analog-to-digital conversion sampling module is used for cell voltage is sampled and reported sampled result by synchronous serial interface to application processing module.

By the present invention, employing connects USB connector by analog switch and application processing module carries out the method that program is downloaded and Debugging message is exported, solve in the correlation technique output Debugging message and the interface that downloads is provided with complicated problems, and then simplified the interface setting that program is downloaded and Debugging message is exported.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the structured flowchart that is used for the CDMA digital mobile communication terminal with WIFI function of the embodiment of the invention;

Fig. 2 downloads and/or the mutual schematic diagram of Debugging message printing and application processing module and cdma wireless modulation, bluetooth module, WIFI module according to 5 pin USB connector of the embodiment of the invention;

Fig. 3 is the schematic diagram that switches according to the WIFI module of the embodiment of the invention and bluetooth module, cdma wireless module voice;

Fig. 4 is the structured flowchart according to the power management module of the embodiment of the invention.

Embodiment

Functional overview

Consider the output Debugging message of correlation technique and the interface that downloads be provided with complexity, audio frequency handover mechanism unsound, may cause the under-supply problem that causes unusual shutdown of terminal power supply, the embodiment of the invention provides a kind of improved mobile communication terminal, is primarily aimed at the following aspects and improves: (1) single 5 pin USB connector reply application processing module program downloads/Debugging message is printed, the download/Debugging message printing of cdma wireless modular program and application processing module and cdma wireless module, bluetooth module, WIFI module alternately; (2) the audio frequency handover mechanism between WIFI module and application processing module, CDMA modulation module and the bluetooth module; (3) power management module of the big current working mode of reply WIFI.

Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Device embodiment

According to embodiments of the invention, a kind of mobile communication terminal is provided, Fig. 1 is the structured flowchart that is used for the CDMA digital mobile communication terminal with WIFI function of the embodiment of the invention, as shown in Figure 1, this mobile communication terminal comprises: application processing module 1, cdma wireless modulation/global positioning system (Global Position System, abbreviate GPS as) module 2, WIFI module 3, memory 4, audio codec 5, bluetooth module 6, FM receiver 7, power supply supplies management module 8, LCD lcd touch display floater 9, keyboard 10, motor 11, camera 12, storage card 13,5 pin USBs (UniversalSerial Bus abbreviates USB as) connectors (mini), 14 grades are partly formed.

Wherein, the power supply supplies management module 8 outer batteries 15 that connect, audio codec 4 outer loud speaker 16, receiver 17 and the microphones 18 of connecting.Application processing module 1 is in core position, communicates by USB between itself and the cdma wireless modulation/GPS module 2; Undertaken alternately by the memory-mapped mode between application processing module 1 and the WIFI module 3; Connect by I2S (Inter-IC Sound is a kind of bus standard of formulating for the audio data transmission between the digital audio-frequency apparatus) bus between application processing module 1 and the audio codec 5, so that the broadcast of digital audio media; Communicate by universal asynchronous reception/dispensing device (Universal AsynchronousReceiver/Transmitter abbreviates UART as) bus between application processing module 1 and the bluetooth module 6.

What the application processing module 1 in the present embodiment adopted is the intelligent use processing platform, what cdma wireless modulation/GPS module 2 adopted is the 800/1900MHz double frequency modulation+GPS function platform of cdma wireless modulation/GPS functional module one, WIFI module 3 adopts memory-mapped mode and the mutual WIFI module scheme of application processing module, that memory 4 adopts is flash memory (Flash) and synchronous dynamic random-access device (Synchronous Dynamic Random Access Memory, abbreviate SDRAM as) mass storage, audio coding decoding 5 devices adopt the audio codec with contact screen information detection and analog to digital converter (ADC) sampling function (can be used for battery voltage detection), be equipped with bluetooth commonly used, FM receiver, LCD display floater with touch function, motor, keyboard, camera, peripheral hardwares such as storage card realize having audio frequency with one, video, data, the application processing module master control cdma wireless modulation module of Streaming Media application processing function, the intelligent digital mobile communication terminal system of WIFI module and other peripheral modules.The system of the embodiment of the invention is outside the wireless communication function of routine, AP wireless Internet access, GPS location navigation, bluetooth, FM receiver, extension storage and high-quality a series of functions such as take pictures/make a video recording can be realized inserting, and other application functions such as USB flash disk, business card identification, electronic document processing can be realized according to development requirement.

Also in conjunction with the accompanying drawings the mobile communication terminal of the embodiment of the invention is described in detail below by following three aspects.

Aspect one

Application processing module according to the mobile communication terminal of the embodiment of the invention comprises UART passage and USB passage.This mobile communication terminal also comprises: first analog switch, be connected to 5 pin USB connector and application processing modules, and be used to switch UART passage and USB passage; Application processing module also is used for switching under the situation of UART passage at first analog switch, by the UART passage receive and output from the Debugging message of cdma wireless module, switch at first analog switch under the situation of USB passage, provide program to the cdma wireless module by the USB passage; The cdma wireless module also is used for sending Debugging message by the UART passage to application processing module, downloads from application processing module by the USB passage.That is, this mobile communication terminal by single 5 pin USB connector realize that application processing module program downloads/Debugging message is printed, the download/Debugging message printing of cdma wireless modular program and application processing module and cdma wireless module, bluetooth module, WIFI module alternately.

Need to prove that the USB passage of application processing module comprises a USB passage and the 2nd USB passage, the UART passage of application processing module comprises a UART passage and the 2nd UART passage, will be described in detail below.

The one a UART passage and a USB passage are connected to 5 pin USB connector by an analog switch SW1, and then and PC (Personal Computer, PC) debug machine communication.When analog switch SW1 switches to a UART passage, be used for exporting to the PC side under the complete machine start situation Debugging message of application processing module, also be used for triggering the cdma wireless module with self-defining EO Engineering Order under the complete machine start situation and send Debugging message by the 2nd UART passage to application processing module, application processor receives by a UART passage and output comes this Debugging message to the PC side.When analog switch SW1 switches to a USB passage, on the one hand, (machine system that adopts many key combination to enter do not start shooting work, only be the operating state of LCD viewing hardware detecting information) PC side can download to application processing module via this passage corresponding to downloading of application processing module under the hardware testing pattern; On the other hand, trigger at user-defined press key under the hardware testing pattern under the situation of the 2nd USB passage connection between cdma wireless module and the application processing module, the PC side can download to the USB slave unit end of application processing module via this passage corresponding to downloading of cdma wireless module, USB slave unit end is transmitted the USB main equipment of this application processing module that downloads, and the USB debugging (diag) of cdma wireless module by the 2nd USB passage mouthful USB main equipment end from application processing module downloads the self-contained memory of cdma wireless module module.Be elaborated below in conjunction with Fig. 2.

Fig. 2 downloads and/or the mutual schematic diagram of Debugging message printing and application processing module and cdma wireless modulation, bluetooth module, WIFI module according to 5 pin USB connector of the embodiment of the invention, as shown in Figure 2, connect by an alternative analog switch SW1 between 5 pin USB connector 14 and the application processor module 1, the 2nd UART passage and two interface channels of the 2nd USB passage are then arranged between application processor module 1 and the cdma wireless modulation/GPS module 2 (that is cdma wireless module).In addition,, mutual between application processor module 1 and the WIFI module 3 between application processor module 1 and the bluetooth module 6 by the memory-mapped mode by UART communication.

Because complete machine has only one 5 pin USB connector 14,, the information of the program download of application processing module 1 side, cdma wireless module 2 sides and system test, debugging must rely on this interface so printing all.This interface has only 5 pins, a Vcharger charge power supply, a ground, a usb signal D+, a usb signal D-, also has one usually as type identification (USB ID) pin (this pin is utilized the battery supply as Vbat in the present invention simultaneously, can realize the complete machine start under the situation that can not have battery under some debugging situation with the special USB line access power supply through transformation).Can see that being used for realizing downloading what use with the debug communications signal can only be usb signal D+ and this two single data pin of D-.

Being public usb data D+/D-line between alternative analog switch SW1 and the 5 pin USB connector 14, then is two passes between itself and the application processing module 1, and one is the USB passage, and one is the UART passage, i.e. a USB passage and a UART passage.When switching to a USB passage, the D+/D-of 5 pin USB connector 14 extends to the D+/D-of USB passage naturally; When switching to a UART passage, the D+/D-of 5 pin USB connector 14 then is connected to the Rx (reception) of a UART passage, Tx (transmission) passage, the D+/D-of this moment no longer has been synchronous differential data passage, and becomes the independent separately asynchronous serial-port data passage that flows to.Present embodiment can trigger the hardware testing mode interface by the side button under the situation that complete machine is not started shooting, at this interface, when needs application side program is downloaded the SW1 switch is switched to the USB download channel and realize downloading; SW1 then switches to a UART passage and realizes the information printing of Debugging message in PC (PC) side behind the complete machine normal boot-strap.

Download and the Debugging message printing for the program of the cdma wireless module that does not have directly to link to each other, then adopt forwarding mechanism with 5 pin USB connector 14.This forwarding mechanism mainly depends on the USB passage.The CDMA module master chip that present embodiment adopts is the high pass chip, the USB mouth that its acquiescence is supported has modulation (modem) mouth and debugging (diag) mouth, with modem oral instructions transmission of data business (main) for the use of dialling up on the telephone, AT (Attention is failed in the diag oral instructions, the control command that terminal equipment sends to travelling carriage) order, mainly be the AT between application processing module 1 and the cdma wireless module 2, because the GPS function need increase a NMEA (The National Marine Electronics Associa-tion newly, by a cover communication protocol of American National ocean Institution of Electronics formulation, in order in different GPS (global positioning system) navigator, to set up unified standard) the defeated gps data of oral instructions.When needs carried out the program download of cdma wireless module 2, the PC side was as USB main equipment (Host), by downloading USB slave unit (Client) end that software downloads to the program of the wireless module on the PC by a USB passage application processing module 1; Application processing module USB Client end data is forwarded to the USB Host end that self possesses then; And then, via the 2nd USB passage, utilize the USB diag mouth of cdma wireless module 2, the program that before downloaded to application processing module is forwarded to cdma wireless module 2 (the cdma wireless module is as the USBClient end of corresponding application processing module USB HOST end) again.This download at first also is to trigger the debugging routine interface by the side button, select some interfaces key assignments at this interface, can identify cdma wireless module 2 port numbers by respective keys by USB diag mouth through serial initialization then, thereby the realization program is downloaded.Debugging message printing, daily record extracting and the complete machine that also can be used for cdma wireless module 2 are in this case surveyed eventually.But for obtaining of the Debugging message of cdma wireless module 2, general approach is still used tupe and is read by the EO Engineering Order mode by entering after the complete machine start.Under this mode, CDMA side Debugging message arrives application processing module 1 by the 2nd UART channel transfer between cdma wireless module 2 and the application processing module 1, and then by the UART passage between application processing module 1 and the 5 pin USB connector 14 (start back SW1 then switches to the UART passage) Debugging message is transferred to the printing of PC (PC) side realization information.

Transmit download with respect to this USB, can also carry out level conversion by UART downloads, the wireless module program that is the PC side arrives the 2nd UART passage between application processing module 1 and the cdma wireless module 2 by the direct level conversion of a UART passage between 5 pin USB connector and the application processing module 2, downloads to cdma wireless module 2 then.But this mode speed is slow, and is not very reliable and stable, but can be used as the USB reflecting software realization standby download scenarios before that realizes that difficulty is comparatively complicated.

Between application processing module 1 and the bluetooth module 6 is to be connected by UART, is used for two transfer of data between the module, between the two also be to finish alternately by the AT order, wherein application processing module is held as HOST.For the bluetooth earphone function, send out AT order via UART to bluetooth by application processing module, the PCM path to be got through, voice data just can be sent to the earphone end by Bluetooth chip.

Undertaken alternately by memory-mapped between application processing module 1 and the WIFI module 3.The application processing main chip of application processing module 1 links to each other with the WiFi module by chip selection signal, and the mode of employing memory-mapped visits the register of WiFi module.The memory-mapped register is usually as device register, but memory headroom is enrolled in the address unification, that is to say, physically this register does not belong to internal memory, but logically it belongs to internal memory, use access memory instruction access it.For example, the various control registers on the WiFi module 3 all are embodied as the memory-mapped register.

Aspect two

Audio frequency handover mechanism between WIFI module and application processing module, CDMA modulation module and the bluetooth module.

The present invention program adopts the WIFI module to comprise the WIFI module, the WIFI module comprises: Internet protocol (Internet Protocol, abbreviate IP as) phone (Voice over IP, abbreviating VoIP as) subsystem is (promptly, the VoIP submodule) and 802.11b/g WLAN modulation subsystem (that is WLAN modulation submodule).Wherein, the VoIP submodule is used for carrying out control command and encoding and decoding speech according to the indication of carrying out application processing module; WLAN modulation submodule is used for realizing interface control function according to the indication of carrying out application processing module that in addition, application processing module also is used to control the unlatching of cdma wireless module and/or close.

WLAN modulation subsystem is controlled by module internal Digital Signal Processing (DigitalSignal Processor abbreviates DSP as) nuclear.DSP nuclear is realized the control of exterior storage interface, safe digital card input/output interface (Secure Digital Input/Output by memory-mapped interface and application processing main chip, abbreviate SDIO as) control, DMA control, high-speed serial bus control, main system interface (Enhanced Host-Port Interface, abbreviate EHPI as) a series of interface control functions such as control, input/output interface able to programme (Program Input Output abbreviates PIO as) control, the control of internal audio frequency codec and the control of 802.11b/g WLAN interface.

For 802.11b/g WLAN modulation subsystem,, relate to problem with Bluetooth coexistence because it comprises a 802.11b/g MAC and radio-frequency module.The bluetooth electric wave uses 2.4~2.48GHz frequency range,, also is operated in ISM band that is.The three-way coexistence interface that this WLAN modulation subsystem provides allows WIFI and bluetooth to be operated in same radio frequency environment.Owing to adopted the three-way co-existence schemes (with respect to another traditional three-way co-existence schemes) that is more conducive to the mutual expansion of bluetooth to realize between the two mutual, therefore, realized good coexistence effect.

For the VoIP subsystem, this VoIP subsystem comprises the codec of a DSP engine and a voice grade.By application processing module Run Sessions initiation protocol (Session Initiation Protocol, abbreviate SIP as, IP-based application layer control protocol, can manage the meeting of different access networks etc.) protocol stack and application programming interface (Application Programming Interface, abbreviate API as) software, and control command and encoding and decoding speech are carried out by the VoIp engine.Like this, the VoIP subsystem of application processing module (Host, main system) and WIFI module has just formed an organic whole.

Because application processing module master control simultaneously cdma wireless modulation/GPS module, the opening and closing of application processing module control cdma wireless modulation/GPS module, communicating alternately by the mode of usb bus alternately between the two after the open wireless module with the AT order.Like this, just form a dual mode system,, can also be implemented in to set up between digital mobile terminal and the wireless lan (wlan) and call out except that setting up the calling between digital mobile terminal and the cdma wireless base station.

In native system, the in addition bluetooth module relevant with voice.Bluetooth earphone inserts bluetooth module by wireless mode, and under the application model of routine, the pcm audio data flow of bluetooth module can I/O arrive the cdma wireless module, and I/O is to eating dishes without rice or wine then.But owing to exist the user, so the I/O between the VoIP subsystem of necessary consideration bluetooth pcm audio data flow and WIFI module while the use scene of surfing the Net and conversing with bluetooth earphone.

Fig. 3 is the schematic diagram that switches according to the WIFI module of the embodiment of the invention and bluetooth module, cdma wireless module voice, as shown in Figure 3, comprise: application processing module 1, cdma wireless module 2, WIFI module 3, audio coding decoding module 5 and bluetooth module 6 will be described the concrete processing procedure of voice data below.

The pulse code modulation of CDMA and WIFI (pulse code modulation, abbreviating PCM as) digital audio stream is by the alternative analog switch (promptly, second analog switch) to bluetooth module 1, analog switch is controlled by the high-low level of a general input/output port (General Purpose Input Output abbreviates GPIO as) of application processing module 1.

Particularly, the second above-mentioned analog switch, an end is connected to bluetooth module, and the other end is connected to cdma wireless module or WIFI module, is used to receive the digital audio stream from cdma wireless module or WIFI module.Application processing module also is used for controlling second analog switch by the high-low level of general input/output port.

In addition, this mobile communication terminal also comprises: the 3rd analog switch, one end is connected to the audio coding decoding module, and the other end is connected to WIFI module or cdma wireless module, is used for the analogue audio frequency from the audio coding decoding module is transmitted to WIFI module or cdma wireless module; The 4th analog switch, an end is connected to the audio coding decoding module, and the other end is connected to WIFI module or cdma wireless module, is used for will being transmitted to the audio coding decoding module from the analogue audio frequency of WIFI module or cdma wireless module according to application processing module; Application processing module also is used for controlling the 3rd analog switch and the 4th analog switch by the high-low level of general input/output port.

Spkr﹠amp; (spearker and reciever write a Chinese character in simplified form rcv, promptly, loud speaker and receiver) and Mic (microphone writes a Chinese character in simplified form, microphone) is connected to audio coding decoding module 5, receive analogue audio frequency and send analogue audio frequency from audio coding decoding module 5 respectively to audio coding decoding module 5, these two kinds of analogue audio frequencies are not handled through digitlization in audio coding decoding module 5 again, only are that signal amplifies.Therefore, the two paths of signals of the audio coding decoding module 5 right-hand members correspondence of coming out remains analogue audio frequency.Like this, come to control respectively synchronously two alternative analog switches by the GPIO identical with aforementioned applications processing module 1, just can be so that the analogue audio frequency of cdma wireless module and WIFI module is connected to SPKR and Mic (promptly via audio coding decoding module 5 simultaneously at certain GPIO level state, SPKR and Mic only are connected to the wherein some separate modular of CDMA/WIFI simultaneously, and the module that this module is connected with PCM is same module).

This connection has been considered bluetooth PCM digital audio stream simultaneously with respect to CDMA module and WIFI modules configured problem, can realize that bluetooth PCM digital audio stream can not produce any delay for the switching of two kinds of modules.Because some wireless module has requirement to main equipment and slave unit, therefore, selected two wireless modules preferably can be unified for holotype or from pattern, promptly, the pattern of the pattern of cdma wireless module and WIFI module is holotype or from pattern, otherwise, can cause very big delay, can not be used for reality.What the technical scheme of the embodiment of the invention adopted is that CDMA and WIFI are holotype.Simultaneously, all carrying out the consideration of condition of equivalent aspect clock frequency, coded system, the frame synchronization mode, because have only the audio frequency handover scheme that provides with the present invention program in this case just can reach optimum efficiency.

Aspect three

The power management module of the big current working mode of reply WIFI.

Because the power consumption of WIFI data communication big (can arrive 200~300mA, add original radio communication, use and handle power consumption, electric current can more reach more than the 500mA), therefore, it is particularly important that power management just seems.

Fig. 4 is the structured flowchart according to the power management module of the embodiment of the invention, as shown in Figure 4, power management scheme of the present invention mainly comprises: power supply supplies management module 8, hardware start voltage-setting circuitry module 42, charge management module 44, cdma wireless modular power source administration module 46, WIFI power management module 48.

Wherein, hardware start voltage is provided with module 42, is used to detect the hardware start voltage of mobile communication terminal, and testing result is sent to application processing module, so that application processing module is determined software start voltage; WIFI modular power source supply module 48 is used for providing power supply to the WIFI module.

In addition, audio coding decoding module 5 also comprises: analog-to-digital conversion sampling module 5 is used for cell voltage is sampled and reported sampled result by synchronous serial interface to application processing module.

Particularly, power supply supplies management module 8, hardware start voltage is provided with module 42, charge management module 44 all is connected to battery 15, and simultaneously, the sampling of the analog-to-digital conversion (ADC) of audio coding decoding module 5 inside is sampled to cell voltage, then, report sampled result to arrive application processing module 1 by continuous peripheral interface (serial peripheral interface abbreviates SPI as, belongs to a kind of synchronous serial interface) and obtain real-time battery voltage value.Here Charge Management and power supply supplies management are split, it is clear to guarantee that both divide the work, and is convenient to independent debugging.Power supply supplies management module 8 provides simultaneously to camera, keyboard, motor, the LCD module, storage card, bluetooth module, LCD is backlight, the power supply supply of audio frequency power amplifier, wherein, storage card, bluetooth module, LCD is backlight, audio frequency power amplifier has adopted special low pressure difference linear voltage regulator (low dropout regulator from power supply module output, abbreviate LDO as) or DC/DC (Direct Current/Direct Current, typically referring to is that direct current is changed to direct current by the power supply apparatus that on-off mode realizes, is divided three classes: booster type, voltage-dropping type and buck-boost type transducer) suitable driving and isolation be provided.

By embodiments of the invention, power management module has been added special hardware start voltage-setting circuitry, like this software and hardware start start voltage is split, and hardware start voltage is lower, is convenient to start as early as possible constant current charge; Software start voltage appropriateness is higher than hardware start voltage, is operated under enough voltage supply situations to guarantee WIFI, is close so as not to both, causes the under-supply situation such as unusual shutdown that causes of power supply.In addition, set up power supply circuit separately, enough current drives when guaranteeing the work of the high power consumption of WIFI at the WIFI module.In fact above-mentioned two kinds of approach be exactly at WIFI high power consumption work taked enough safeguard measures.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (13)

1. mobile communication terminal, comprise 5 pin general-purpose serial bus USB connectors, application processing module, code division multiple access cdma wireless module, bluetooth module, audio coding decoding module, wireless compatibility authentication WIFI module, wherein, described application processing module comprises universal asynchronous reception/dispensing device UART passage and USB passage, it is characterized in that described mobile communication terminal comprises:
First analog switch is connected to described 5 pin USB connector and described application processing module, is used to switch described UART passage and described USB passage;
Described application processing module also is used for switching under the situation of described UART passage at described first analog switch, by described UART passage receive and output from the Debugging message of described cdma wireless module, switch under the situation of described USB passage at described first analog switch, provide program to described cdma wireless module by described USB passage;
Described cdma wireless module also is used for sending described Debugging message by described UART passage to described application processing module, downloads described program by described USB passage from described application processing module.
2. mobile communication terminal according to claim 1 is characterized in that,
Described USB passage comprises a USB passage and the 2nd USB passage, and wherein, a described USB passage is connected to described first analog switch, and described the 2nd USB passage is connected to described cdma wireless module;
Described application processing module also is used for downloading described program by a described USB passage.
3. mobile communication terminal according to claim 2 is characterized in that,
Described application processing module also comprises USB slave unit end, is used for downloading described program by a described USB passage;
Described application processing module also comprises USB main equipment end, is used to receive the described program that described USB slave unit end is transmitted;
Described cdma wireless module also is used for downloading described program by described the 2nd USB passage from described USB main equipment end.
4. mobile communication terminal according to claim 1 is characterized in that,
Described UART passage comprises a UART passage and the 2nd UART passage, and wherein, a described UART passage connects described first analog switch, and described the 2nd UART passage connects described cdma wireless module;
Described application processing module also is used for exporting by a described UART passage Debugging message of described application processing module.
5. mobile communication terminal according to claim 4 is characterized in that,
Described cdma wireless module also is used for sending to described application processing module by described the 2nd UART passage the Debugging message of described cdma wireless module;
Described application processing module also is used to receive and export by a described UART passage Debugging message of described cdma wireless module.
6. according to each described mobile communication terminal in the claim 1 to 5, it is characterized in that, described 5 pin USB connector comprise: pin D+ and pin D-, be used for switching under the situation of described USB passage at described first analog switch, be connected to the pin D+ and the pin D-of described USB passage, switch under the situation of described UART passage at described first analog switch, be connected to the reception Rx passage/transmission Tx passage of described UART passage.
7. according to each described mobile communication terminal in the claim 1 to 5, it is characterized in that described application processing module also is used to control the unlatching of described cdma wireless module and/or close.
8. mobile communication terminal according to claim 7 is characterized in that, described WIFI module comprises the WIFI module, and described WIFI module comprises:
The IP phone submodule is used for carrying out control command and encoding and decoding speech according to the indication of carrying out described application processing module;
WLAN (wireless local area network) modulation submodule is used for realizing interface control function according to the indication of carrying out described application processing module.
9. mobile communication terminal according to claim 1 is characterized in that, also comprises:
Second analog switch, an end is connected to described bluetooth module, and the other end is connected to described cdma wireless module or described WIFI module, is used to receive the digital audio stream from described cdma wireless module or described WIFI module;
Described application processing module also is used for controlling described second analog switch by the high-low level of general input/output port.
10. mobile communication terminal according to claim 9 is characterized in that, the pattern of the pattern of described cdma wireless module and described WIFI module is holotype or from pattern.
11. according to each described mobile communication terminal in the claim 1 to 5,8 to 9, it is characterized in that, also comprise:
Hardware start voltage is provided with module, is used to detect the hardware start voltage of described mobile communication terminal, and testing result is sent to described application processing module, so that described application processing module is determined software start voltage.
12. according to each described mobile communication terminal in the claim 1 to 5,8 to 9, it is characterized in that, also comprise:
WIFI modular power source supply module is used for providing power supply to described WIFI module.
13., it is characterized in that described audio coding decoding module also comprises according to each described mobile communication terminal in the claim 1 to 5,8 to 9:
The analog-to-digital conversion sampling module is used for cell voltage is sampled and reported sampled result by synchronous serial interface to described application processing module.
CN2009101464182A 2009-06-02 2009-06-02 Mobile communication terminal CN101577986B (en)

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