CN106850210A - Mobile terminal sound call handling method and mobile terminal - Google Patents
Mobile terminal sound call handling method and mobile terminal Download PDFInfo
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- CN106850210A CN106850210A CN201710116979.2A CN201710116979A CN106850210A CN 106850210 A CN106850210 A CN 106850210A CN 201710116979 A CN201710116979 A CN 201710116979A CN 106850210 A CN106850210 A CN 106850210A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/73—Battery saving arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of mobile terminal sound call handling method and mobile terminal, mobile terminal includes BP and ADSP, BP is used to obtain downlink speech frame, when the downlink speech frame is speech scrambling, the downlink speech frame is sent after being decrypted treatment to external encryption hardware, feed back to the ADSP；ADSP is used to obtain ascending voice frame, when the ascending voice frame is speech scrambling, the ascending voice frame is sent to external encryption hardware after being encrypted, and feeds back to the BP.The present invention is moved towards by redefining the voice flow that voice encryption is conversed, and solves the drawbacks of power consumption is big when voice flow causes mobile phone communication via AP, and shorten voice flow time delay.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of mobile terminal sound call handling method and movement
Terminal.
Background technology
Voice call always is the basic service of mobile communication, in order to ensure the privacy and security of communication process,
People devise various different encipherment schemes.Its essence is all that the voice flow (up UpLink) sent to mobile phone is carried out
Encryption, the voice flow (descending DownLink) to receiving is decrypted, the purpose for the arrangement is that in order to avoid call voice is in
Way is ravesdropping.Current speech ciphering method is divided into soft encryption and hardware encryption, and soft encryption is exactly software cryptography, i.e., third party adds solution
During close algorithm is integrated into mobile phone in the form of the software code, these encryption and decryption codes carry out encryption and decryption to voice flow；Hardware encryption refers to
Hardware is encrypted, and voice flow sends into special hardware (for example encrypting T cards) from mobile phone, via sending mobile phone back to again after hardware enciphering and deciphering,
AES is transparent for mobile phone, so security is higher.
Existing hardware encryption principle is as follows：
Android phone includes two processors, AP (Application Processor, application processor) and BP
(Baseband Processor, BBP), the former runs android system and application, and the latter is responsible for wireless telecommunications.Firmly
Encrypt and the data that network sends (up) (descending) or that be sent to network are first forwarded to AP by BP, be then sent to via AP outer
Portion's encryption hardware carries out encryption and decryption treatment, and Zai Yanyuan roads are sent back to afterwards.So produce two drawbacks：First, AP is in speech scrambling
During cannot get dormancy, ceaselessly to process the data that BP is transmitted, and normal speech phone is in the case of the screen that goes out, AP is can
With dormancy；Second, voice flow transmission path is excessive to increased time delay.
The content of the invention
It is a primary object of the present invention to propose a kind of mobile terminal sound call handling method and mobile terminal, it is intended to solve
The drawbacks of power consumption is big when certainly voice flow causes mobile phone communication via AP, and shorten voice flow time delay.
To achieve the above object, a kind of mobile terminal sound call handling method that the present invention is provided, the mobile terminal
Including BP and ADSP, the BP and ADSP (audio digital signal processor, audio digital signal processor)
It is connected with external encryption hardware communication respectively, methods described includes：
The BP or ADSP obtains speech frame；
When the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and is decrypted by the BP
After treatment, the ADSP is fed back to, or, the speech frame is sent to external encryption hardware and is encrypted by the ADSP
Afterwards, the BP is fed back to.
Alternatively, the step of BP obtains speech frame includes：
The BP receives the downlink speech frame that network side sends, and judges whether the downlink speech frame is speech scrambling；
It is described when the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and carried out by the BP
Include after decryption processing, the step of feed back to the ADSP：
If the downlink speech frame is speech scrambling, the downlink speech frame is sent hard to external encryption by the BP
Part, treatment is decrypted by the external encryption hardware to the downlink speech frame；
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and to the downlink speech frame at
Exported after reason and played.
Alternatively, the step of ADSP obtains speech frame includes：
The ADSP obtains ascending voice frame, after processing the ascending voice frame, judges the ascending voice frame
Whether it is speech scrambling；
The ADSP is sent to external encryption hardware the speech frame after being encrypted, and feeds back to the step of the BP
Suddenly include：
If the ascending voice frame is speech scrambling, the ascending voice frame is sent hard to external encryption by the ADSP
Part, is encrypted by the external encryption hardware to the ascending voice frame；
The BP receives the ascending voice frame after the external encryption hardware encryption, is sent after being processed to network
Side.
Alternatively, the BP judges also to include after the step of whether downlink speech frame is speech scrambling：
If the downlink speech frame is not speech scrambling, the BP sends to the ADSP downlink speech frame,
Exported after being processed by the ADSP and played.
Alternatively, the ADSP judges also to include after the step of whether the ascending voice frame is speech scrambling：
If the ascending voice frame is not speech scrambling, the ADSP sends to the BP ascending voice frame,
Sent after being processed by the BP to network side.
The embodiment of the present invention also propose it is a kind of process voice call mobile terminal, the mobile terminal include BP and
ADSP, the BP and ADSP are connected with external encryption hardware communication respectively, wherein：
The BP, for obtaining downlink speech frame, when the downlink speech frame is speech scrambling, by the downlink voice
Frame is sent after being decrypted treatment to external encryption hardware, feeds back to the ADSP；
ADSP, for obtaining ascending voice frame, when the ascending voice frame is speech scrambling, by the ascending voice frame
After transmission is encrypted to external encryption hardware, the BP is fed back to.
Alternatively, the BP, is additionally operable to receive the downlink speech frame that network side sends；Whether judge the downlink speech frame
It is speech scrambling；If the downlink speech frame is speech scrambling, the downlink speech frame is sent to external encryption hardware, by
The external encryption hardware is decrypted treatment to the downlink speech frame；
The ADSP, is additionally operable to receive the downlink speech frame after the external encryption hardware decryption treatment, and descending to this
Speech frame is exported after being processed and played.
Alternatively, the ADSP, is additionally operable to obtain ascending voice frame, after processing the ascending voice frame, judges
Whether the ascending voice frame is speech scrambling；If the ascending voice frame is speech scrambling, by ascending voice frame hair
External encryption hardware is delivered to, the ascending voice frame is encrypted by the external encryption hardware；
The BP, is additionally operable to receive the ascending voice frame after the external encryption hardware encryption, is sent out after being processed
Deliver to network side.
Alternatively, the BP, if it is not speech scrambling to be additionally operable to the downlink speech frame, by downlink speech frame hair
The ADSP is delivered to, is exported after being processed by the ADSP and played；
The ADSP, if being additionally operable to the ascending voice frame for speech scrambling, by the ascending voice frame send to
The BP, sends to network side after being processed by the BP.
Alternatively, the external encryption hardware is connected with the BP and ADSP by serial communication；The ascending voice frame
Transmitted using independent tunnel with downlink speech frame.
A kind of mobile terminal sound call handling method proposed by the present invention and mobile terminal, the downlink voice of scrambler phone
Stream by network transmission to BP after, be no longer transmitted to AP, but external encryption hardware, external encryption hardware decryption are directly transmitted to by BP
Afterwards, then it is transmitted to ADSP；In contrast, spread to external encryption by the ascending voice after ADSP treatment in the path of ascending voice stream
Hardware is encrypted, and BP is transmitted to after the completion of encryption, and network is sent to by BP.Wherein AP is only involved in the controlling stream of call, from there through again
The voice flow trend of voice encryption call is defined, the drawbacks of power consumption is big when voice flow causes mobile phone communication via AP is solved, and
And shorten voice flow time delay.
Brief description of the drawings
Fig. 1 is a hardware architecture diagram for optional mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the block schematic illustration of the mobile terminal preferred embodiment of present invention treatment voice call；
Fig. 4 is the handling process schematic diagram of downlink voice stream in the embodiment of the present invention；
Fig. 5 is the handling process schematic diagram of ascending voice stream in the embodiment of the present invention；
Fig. 6 is the schematic flow sheet of mobile terminal sound call handling method preferred embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for being conducive to explanation of the invention, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine 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 movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is the hardware architecture diagram of the mobile terminal for realizing each embodiment of the invention.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190 etc..Fig. 1 shows
Mobile terminal with various assemblies, it should be understood that being not required for implementing all components for showing.Can be alternatively
Implement more or less component.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include mobile communication module 112, wireless Internet mould
At least one of block 113, short range communication module 114.
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
ToothTM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybeeTMEtc..
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 1220, the static map that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
The view data of piece or video is processed.Picture frame after treatment may be displayed on display unit 151.At camera 121
Picture frame after reason can be stored in memory 160 (or other storage mediums) or carried out via wireless communication unit 110
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (voice data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio (voice) data after treatment can be changed in the case of telephone calling model
For the form that can be sent to mobile communication base station via mobile communication module 112 is exported.Microphone 122 can implement all kinds
Noise eliminate (or suppress) algorithm eliminating (or suppression) in the noise for receiving and producing during sending audio signal or
Person disturbs.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to being touched caused by resistance, pressure, electric capacity etc. change sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 in the form of layer, touch-screen can be formed.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for reception and come from
The input (for example, data message, electric power etc.) of the external device (ED) and input that will be received is transferred in mobile terminal 1 00
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides to the path of mobile terminal 1 00 from base or can serve as allowing the various command signals being input into from base to pass through it
It is transferred to the path of mobile terminal.Be can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include display
Unit 151, dio Output Modules 152 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, show video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when display unit 151 and touch pad in the form of layer it is superposed on one another to form touch-screen when, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to be watched from outside, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired implementation method, mobile terminal 1 00 can include two or more display units (or other display devices), for example, moving
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used to detect touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Memory 160 can store software program for the treatment and control operation performed by controller 180 etc., Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And, memory 160 can store the vibration of various modes on being exported when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
Communication, video calling etc. related control and treatment.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or can be structured as and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, the handwriting input that will be performed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various implementation methods described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implemented.Implement for hardware, implementation method described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
At least one in electronic unit is implemented, and in some cases, such implementation method can be implemented in controller 180.
For software implementation, the implementation method of such as process or function can with allow to perform the single of at least one function or operation
Software module is implemented.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and performed by controller 180.
Specifically, in the present embodiment, mobile terminal can include BP and ADSP, the BP and ADSP respectively with external encryption
Hardware communication is connected, wherein：
The BP, for obtaining downlink speech frame, when the downlink speech frame is speech scrambling, by the downlink voice
Frame is sent after being decrypted treatment to external encryption hardware, feeds back to the ADSP；
ADSP, for obtaining ascending voice frame, when the ascending voice frame is speech scrambling, by the ascending voice frame
After transmission is encrypted to external encryption hardware, the BP is fed back to.
So far, oneself according to its function through describing mobile terminal.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 1 00 as shown in Figure 1 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operated.
The communication system that mobile terminal wherein of the invention can be operated is described referring now to Fig. 2.
Such communication system can use different air interface and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
If any one in the interface that back haul link can be known according to Ganji is constructed, the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion of line covering is radially away from BS270.Or, each subregion can be by two or more for diversity reception
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersects can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
It is multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.Used as a typical operation of wireless communication system, BS270 is received from the reverse of various mobile terminal 1s 00
Link signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.It is every that certain base station 270 is received
Individual reverse link signal is processed in specific BS270.The data of acquisition are forwarded to the BSC275 of correlation.BSC is provided
Call resource allocation and the mobile management function of the coordination including the soft switching process between BS270.BSC275 will also be received
Data be routed to MSC280, its provide for PSTN290 formed interface extra route service.Similarly, PSTN290
Interface is formed with MSC280, MSC and BSC275 forms interface, and BSC275 correspondingly controls BS270 to believe with by forward link
Number it is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the invention is proposed.
Because in existing hardware encryption technology, network sends the data of (up) (descending) or that be sent to network first by BP
AP is forwarded to, being then sent to external encryption hardware via AP carries out encryption and decryption treatment, and Zai Yanyuan roads are sent back to afterwards, so that language
Sound flows through the drawbacks of power consumption is big when AP causes mobile phone communication, and shortens voice flow time delay.
Therefore, the present invention proposes a solution, power consumption when voice flow causes mobile phone communication via AP can be solved big
The drawbacks of, and shorten voice flow time delay.
Specifically, it is described as shown in figure 3, present pre-ferred embodiments propose a kind of mobile terminal for processing voice call
Mobile terminal includes BP and ADSP (audio digital signal processor, audio digital signal processor), described
BP and ADSP are connected with external encryption hardware communication respectively, wherein：
The BP, for obtaining downlink speech frame, when the downlink speech frame is speech scrambling, by the downlink voice
Frame is sent after being decrypted treatment to external encryption hardware, feeds back to the ADSP；
ADSP, for obtaining ascending voice frame, when the ascending voice frame is speech scrambling, by the ascending voice frame
After transmission is encrypted to external encryption hardware, the BP is fed back to.
Further, the BP, is additionally operable to receive the downlink speech frame that network side sends；Judging the downlink speech frame is
No is speech scrambling；If the downlink speech frame is speech scrambling, the downlink speech frame is sent to external encryption hardware,
Treatment is decrypted to the downlink speech frame by the external encryption hardware；
The ADSP, is additionally operable to receive the downlink speech frame after the external encryption hardware decryption treatment, and descending to this
Speech frame is exported after being processed and played.
Further, the ADSP, is additionally operable to obtain ascending voice frame, after processing the ascending voice frame, sentences
Whether the ascending voice frame that breaks is speech scrambling；If the ascending voice frame is speech scrambling, by the ascending voice frame
Send to external encryption hardware, the ascending voice frame is encrypted by the external encryption hardware；
The BP, is additionally operable to receive the ascending voice frame after the external encryption hardware encryption, is sent out after being processed
Deliver to network side.
Further, the BP, if it is not speech scrambling to be additionally operable to the downlink speech frame, by the downlink speech frame
Send to the ADSP, exported after being processed by the ADSP and played；
The ADSP, if being additionally operable to the ascending voice frame for speech scrambling, by the ascending voice frame send to
The BP, sends to network side after being processed by the BP.
Specifically, this embodiment scheme is related to the hardware encryption of voice call.By taking Android phone as an example, (it is certain, other
The mobile terminals such as the mobile phone of system can also carry out the treatment of voice call with reference to this embodiment scheme principle), Android phone
Generally comprise two processors, AP (Application Processor, application processor) and BP (Baseband
Processor, BBP), the former runs android system and application, and the latter is responsible for wireless telecommunications.
The BP and ADSP are connected with external encryption hardware communication respectively, BP and ADSP communication connections, BP connection extranets
Network, ADSP connections speech input output device (output equipment such as, loudspeaker (Speaker), receiver, input equipment such as wheat
Gram wind (Mic)).
Voice call includes ascending voice stream and downlink voice stream, and the voice flow that mobile phone sends is ascending voice stream,
Need to be encrypted, the voice flow that mobile phone is received is downlink voice stream, is sent by network side, need to be decrypted.
Wherein, ascending voice stream is received by voice-input devices such as microphones by ADSP and obtained；Downlink voice stream is by BP
Uploaded by network side and obtained.
As it was previously stated, existing hardware encryption principle is as follows：
The data that network sends (up) (descending) or that be sent to network are first forwarded to AP, Ran Houjing by hardware encryption by BP
Being sent to external encryption hardware by AP carries out encryption and decryption treatment, and Zai Yanyuan roads are sent back to afterwards.So produce two drawbacks：First, AP
Cannot get dormancy during speech scrambling, ceaselessly to process the data that BP is transmitted, and normal speech phone is in the feelings of screen of going out
Under condition, AP can be dormancy；Second, voice flow transmission path is excessive to increased time delay.
In the present embodiment, voice flow (the present embodiment claims speech frame) trend of voice encryption call is redefined, solve language
Sound flows through the drawbacks of power consumption is big when AP causes mobile phone communication, and can shorten voice flow time delay.
The realization approach of this embodiment scheme as shown in figure 3, scrambler phone downlink voice stream by network transmission to BP after,
AP is no longer transmitted to, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then be transmitted to ADSP；Up language
In contrast, spread by the ascending voice after ADSP treatment and give the encryption of external encryption hardware, after the completion of encryption in the path of sound stream
BP is transmitted to, network is sent to by BP.In the present embodiment AP be only involved in call controlling stream, such as converse foundations, end of conversation, commonly
Mutually phase transformation between call and speech scrambling.
In the present embodiment, voice call can be the language in phone, or instant messaging application (such as QQ, wechat)
Sound is chatted.The present embodiment mobile terminal is the communication terminal for supporting voice encryption function, especially supports the communication end of hardware encryption
End.
Voice encryption function refers to that communicating pair all uses coded communication terminal, and opens the situation of coded communication business
Under, carry out end-to-end encrypted communication service.Following two patterns can generally be used：Automatic mode and manual mode.Wherein：
Automatic mode is directly to initiate encrypted word, and its cardinal principle is：Calling party is for the known feelings for being called and having ciphering terminal
Under condition, rise exhale when Choice encryption converse, initiate call encryption, callee directly answers, without pressing speech scrambling key, builds automatically
Vertical End to End Encryption call.
By taking call voice speech scrambling as an example, calling party rise exhale when Choice encryption call can be using following several sides
Formula：
1st, input will carry out dialing the number of speech scrambling, then select " call encryption "；
2nd, in phone directory, contact person is chosen, then selects " call encryption "；
3rd, in short message, short message is chosen, then selects " call encryption ".
In the application scenarios of call encryption herein, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to
AP, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The road of ascending voice stream
Footpath in contrast, is spread by the ascending voice after ADSP treatment and gives the encryption of external encryption hardware, and BP is transmitted to after the completion of encryption, by
BP is sent to network.AP is only involved in the controlling stream of call, such as converse foundation, end of conversation etc., from there through redefining voice
The voice flow trend of speech scrambling, changes AP role so that AP can be obtained during speech scrambling in the case of the screen that goes out
Dormancy, without ceaselessly processing the data that BP is transmitted, power consumption when reducing mobile phone communication is caused so as to solve voice flow via AP
The drawbacks of power consumption is big during mobile phone communication, and because talk path is reduced via the link of AP, so as to shorten voice flow time delay.
Manual mode can be that general words are transferred to encrypted word, and its cardinal principle is：Between coded communication service-user, first set up general
Logical (plaintext) call, then by oral negotiation, is built by each pressing the speech scrambling key in coded communication terminal or menu
Vertical speech scrambling.
In the application scenarios of call encryption herein, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to
AP, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The road of ascending voice stream
Footpath in contrast, is spread by the ascending voice after ADSP treatment and gives the encryption of external encryption hardware, and BP is transmitted to after the completion of encryption, by
BP is sent to network.AP is only involved in the controlling stream of call, such as call is set up, end of conversation and common call and speech scrambling it
Between mutually phase transformation etc., moved towards from there through the voice flow for redefining voice encryption call, change AP role so that AP is in encryption
Dormancy can be obtained in the case of the screen that goes out in communication process, without ceaselessly processing the data that BP is transmitted, mobile phone communication is reduced
When power consumption, so as to solve the drawbacks of power consumption is big when voice flow causes mobile phone communication via AP, and because talk path is reduced
Via the link of AP, so as to shorten voice flow time delay.
In the embodiment above, the setting of encryption function can be set by system, it is also possible to by user according to default
Function choosing-item or button selection set.
It should be noted that in above two call mode, user is in communication process, it is also possible to which it is logical that encryption is cancelled in selection
Words function, such as, system sets the function choosing-item that encryption is cancelled or opened in call interface, or, terminals physical is set and is pressed
Key, as the function button that switching encryption is opened and closed, switching is selected for user as needed, meets user's different demands,
Improve user's communication experience.
The handling process of downlink voice stream detailed below and the handling process of ascending voice stream.
Specifically, the handling process of the present embodiment downlink voice stream is as follows：
Shown in reference picture 4, first, BP receives the downlink speech frame that network side sends, and judges that the downlink speech frame is
No is speech scrambling.
When the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and is decrypted by the BP
After treatment, the ADSP is fed back to.
Specifically, if the downlink speech frame is speech scrambling, the BP sends to outside the downlink speech frame
Encryption hardware, after external encryption hardware receives speech frame, treatment is decrypted to the downlink speech frame, by data after decryption
Feeding ADSP.
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and to the downlink speech frame at
Exported after reason to Speaker or receiver and played out.
If the downlink speech frame is not speech scrambling, be sent directly to for the downlink speech frame described by the BP
ADSP, exports to Speaker or receiver after being processed by the ADSP and plays out.
Concrete application scene is exemplified below：
By taking wechat voice call as an example：
User A (hereinafter referred to as A ends) and user B (hereinafter referred to as B ends) carry out voice call by handset Wechat.Two users are made
With terminal all for the communication terminal for supporting voice encryption to converse, and user A and user B select to be encrypted call automatically.
A ends are callee, and B ends are calling party, and after calling is initiated in B ends to A ends, in A sides, terminal system BP receives net
The downlink speech frame that network side sends, and judge whether the downlink speech frame is speech scrambling.
When it is speech scrambling to judge the call, BP directly sends to external encryption hardware the speech frame BP, and nothing
After external encryption hardware receives speech frame, treatment need to be decrypted to the downlink speech frame via AP treatment, will after decryption
Data send into ADSP.
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and to the downlink speech frame at
Exported after reason to Speaker or receiver and played out.
If the downlink speech frame is not speech scrambling, be sent directly to for the downlink speech frame described by the BP
ADSP, exports to Speaker or receiver after being processed by the ADSP and plays out
QQ voice calls are similar to.
The handling process of the present embodiment ascending voice stream is as follows：
Shown in reference picture 5, first, ADSP obtains ascending voice frame, after processing the ascending voice frame, judges institute
State whether ascending voice frame is speech scrambling.
ADSP is sent to external encryption hardware the speech frame after being encrypted, and feeds back to the BP.
Specifically, if the ascending voice frame is speech scrambling, the ADSP sends to outer the ascending voice frame
Portion's encryption hardware, after external encryption hardware receives speech frame, is encrypted to the ascending voice frame, is sent into after encryption
BP。
The BP receives the ascending voice frame after the external encryption hardware encryption, is sent after being processed to network
Side.
If the ascending voice frame is not speech scrambling, be sent directly to for the ascending voice frame described by the ADSP
BP, sends to network side after being processed by the BP.
It should be noted that in the present embodiment, external encryption device and BP/ADSP can specifically be filled by serial communication
Divide has the adjustable advantage of controllable-rate using serial ports.
In addition, uplink and downlink voice flow sets up two tunnels, independent control respectively.So external encryption device,
BP and ADSP can individually be processed based on passage, such as external encryption device does decryption processing to the data of down going channel, to upper
The data of row of channels do the encryption process.
The present embodiment by such scheme, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to AP,
But external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The path of ascending voice stream with
Conversely, by ADSP treatment after ascending voice spread encryption to external encryption hardware, BP is transmitted to after the completion of encryption, by BP send out
To network.Wherein AP is only involved in the controlling stream of call, is moved towards from there through the voice flow for redefining voice encryption call, solves
The drawbacks of power consumption is big when voice flow causes mobile phone communication via AP, and shorten voice flow time delay.
Accordingly, mobile terminal sound call handling method embodiment of the present invention is proposed.
As shown in fig. 6, present pre-ferred embodiments propose a kind of mobile terminal sound call handling method, it is described mobile whole
End include BP and ADSP (audio digital signal processor, audio digital signal processor), the BP with
ADSP is connected with external encryption hardware communication respectively, and methods described includes：
Step S101, the BP or ADSP obtain speech frame；
This embodiment scheme is related to the hardware encryption of voice call.The inner frame of the present embodiment mobile terminal is referred to figure
Shown in 3, (certainly, the mobile terminal such as mobile phone of other systems can also be former with reference to this embodiment scheme by taking Android phone as an example
Reason carries out the treatment of voice call), Android phone generally comprises two processors, AP (Application Processor,
Application processor) and BP (Baseband Processor, BBP), the former runs android system and application, the latter
It is responsible for wireless telecommunications.
The BP and ADSP are connected with external encryption hardware communication respectively, BP and ADSP communication connections, BP connection extranets
Network, ADSP connections speech input output device (output equipment such as, loudspeaker (Speaker), receiver, input equipment such as wheat
Gram wind (Mic)).
Voice call includes ascending voice stream and downlink voice stream, and the voice flow that mobile phone sends is ascending voice stream,
Need to be encrypted, the voice flow that mobile phone is received is downlink voice stream, is sent by network side, need to be decrypted.
Wherein, ascending voice stream is received by voice-input devices such as microphones by ADSP and obtained；Downlink voice stream is by BP
Uploaded by network side and obtained.
Step S102, when the speech frame is speech scrambling, the speech frame is sent hard to external encryption by the BP
After part is decrypted treatment, the ADSP is fed back to, or, the speech frame is sent to external encryption hardware by the ADSP
After row encryption, the BP is fed back to.
As it was previously stated, existing hardware encryption principle is as follows：
The data that network sends (up) (descending) or that be sent to network are first forwarded to AP, Ran Houjing by hardware encryption by BP
Being sent to external encryption hardware by AP carries out encryption and decryption treatment, and Zai Yanyuan roads are sent back to afterwards.So produce two drawbacks：First, AP
Cannot get dormancy during speech scrambling, ceaselessly to process the data that BP is transmitted, and normal speech phone is in the feelings of screen of going out
Under condition, AP can be dormancy；Second, voice flow transmission path is excessive to increased time delay.
In the present embodiment, voice flow (the present embodiment claims speech frame) trend of voice encryption call is redefined, solve language
Sound flows through the drawbacks of power consumption is big when AP causes mobile phone communication, and can shorten voice flow time delay.
The realization approach of this embodiment scheme as shown in figure 3, scrambler phone downlink voice stream by network transmission to BP after,
AP is no longer transmitted to, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then be transmitted to ADSP；Up language
In contrast, spread by the ascending voice after ADSP treatment and give the encryption of external encryption hardware, after the completion of encryption in the path of sound stream
BP is transmitted to, network is sent to by BP.In the present embodiment AP be only involved in call controlling stream, such as converse foundations, end of conversation, commonly
Mutually phase transformation between call and speech scrambling.
In the present embodiment, voice call can be the language in phone, or instant messaging application (such as QQ, wechat)
Sound is chatted.The present embodiment mobile terminal is the communication terminal for supporting voice encryption function, especially supports the communication end of hardware encryption
End.
Voice encryption function refers to that communicating pair all uses coded communication terminal, and opens the situation of coded communication business
Under, carry out end-to-end encrypted communication service.Following two patterns can generally be used：Automatic mode and manual mode.Wherein：
Automatic mode is directly to initiate encrypted word, and its cardinal principle is：Calling party is for the known feelings for being called and having ciphering terminal
Under condition, rise exhale when Choice encryption converse, initiate call encryption, callee directly answers, without pressing speech scrambling key, builds automatically
Vertical End to End Encryption call.
By taking call voice speech scrambling as an example, calling party rise exhale when Choice encryption call can be using following several sides
Formula：
1st, input will carry out dialing the number of speech scrambling, then select " call encryption "；
2nd, in phone directory, contact person is chosen, then selects " call encryption "；
3rd, in short message, short message is chosen, then selects " call encryption ".
In the application scenarios of call encryption herein, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to
AP, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The road of ascending voice stream
Footpath in contrast, is spread by the ascending voice after ADSP treatment and gives the encryption of external encryption hardware, and BP is transmitted to after the completion of encryption, by
BP is sent to network.AP is only involved in the controlling stream of call, such as converse foundation, end of conversation etc., from there through redefining voice
The voice flow trend of speech scrambling, changes AP role so that AP can be obtained during speech scrambling in the case of the screen that goes out
Dormancy, without ceaselessly processing the data that BP is transmitted, power consumption when reducing mobile phone communication is caused so as to solve voice flow via AP
The drawbacks of power consumption is big during mobile phone communication, and because talk path is reduced via the link of AP, so as to shorten voice flow time delay.
Manual mode can be that general words are transferred to encrypted word, and its cardinal principle is：Between coded communication service-user, first set up general
Logical (plaintext) call, then by oral negotiation, is built by each pressing the speech scrambling key in coded communication terminal or menu
Vertical speech scrambling.
In the application scenarios of call encryption herein, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to
AP, but external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The road of ascending voice stream
Footpath in contrast, is spread by the ascending voice after ADSP treatment and gives the encryption of external encryption hardware, and BP is transmitted to after the completion of encryption, by
BP is sent to network.AP is only involved in the controlling stream of call, such as call is set up, end of conversation and common call and speech scrambling it
Between mutually phase transformation etc., moved towards from there through the voice flow for redefining voice encryption call, change AP role so that AP is in encryption
Dormancy can be obtained in the case of the screen that goes out in communication process, without ceaselessly processing the data that BP is transmitted, mobile phone communication is reduced
When power consumption, so as to solve the drawbacks of power consumption is big when voice flow causes mobile phone communication via AP, and because talk path is reduced
Via the link of AP, so as to shorten voice flow time delay.
In the embodiment above, the setting of encryption function can be set by system, it is also possible to by user according to default
Function choosing-item or button selection set.
It should be noted that in above two call mode, user is in communication process, it is also possible to which it is logical that encryption is cancelled in selection
Words function, such as, system sets the function choosing-item that encryption is cancelled or opened in call interface, or, terminals physical is set and is pressed
Key, as the function button that switching encryption is opened and closed, switching is selected for user as needed, meets user's different demands,
User's communication experience is provided.
The handling process of downlink voice stream detailed below and the handling process of ascending voice stream.
Specifically, the handling process of the present embodiment downlink voice stream is as follows：
Shown in reference picture 4, first, BP receives the downlink speech frame that network side sends, and judges that the downlink speech frame is
No is speech scrambling.
When the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and is decrypted by the BP
After treatment, the ADSP is fed back to.
Specifically, if the downlink speech frame is speech scrambling, the BP sends to outside the downlink speech frame
Encryption hardware, after external encryption hardware receives speech frame, treatment is decrypted to the downlink speech frame, by data after decryption
Feeding ADSP.
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and to the downlink speech frame at
Exported after reason to Speaker or receiver and played out.
If the downlink speech frame is not speech scrambling, be sent directly to for the downlink speech frame described by the BP
ADSP, exports to Speaker or receiver after being processed by the ADSP and plays out.
Concrete application scene is exemplified below：
By taking wechat voice call as an example：
User A (hereinafter referred to as A ends) and user B (hereinafter referred to as B ends) carry out voice call by handset Wechat.Two users are made
With terminal all for the communication terminal for supporting voice encryption to converse, and user A and user B select to be encrypted call automatically.
A ends are callee, and B ends are calling party, and after calling is initiated in B ends to A ends, in A sides, terminal system BP receives net
The downlink speech frame that network side sends, and judge whether the downlink speech frame is speech scrambling.
When it is speech scrambling to judge the call, BP directly sends to external encryption hardware the speech frame BP, and nothing
After external encryption hardware receives speech frame, treatment need to be decrypted to the downlink speech frame via AP treatment, will after decryption
Data send into ADSP.
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and to the downlink speech frame at
Exported after reason to Speaker or receiver and played out.
If the downlink speech frame is not speech scrambling, be sent directly to for the downlink speech frame described by the BP
ADSP, exports to Speaker or receiver after being processed by the ADSP and plays out
QQ voice calls are similar to.
The handling process of the present embodiment ascending voice stream is as follows：
Shown in reference picture 5, first, ADSP obtains ascending voice frame, after processing the ascending voice frame, judges institute
State whether ascending voice frame is speech scrambling.
ADSP is sent to external encryption hardware the speech frame after being encrypted, and feeds back to the BP.
Specifically, if the ascending voice frame is speech scrambling, the ADSP sends to outer the ascending voice frame
Portion's encryption hardware, after external encryption hardware receives speech frame, is encrypted to the ascending voice frame, is sent into after encryption
BP。
The BP receives the ascending voice frame after the external encryption hardware encryption, is sent after being processed to network
Side.
If the ascending voice frame is not speech scrambling, be sent directly to for the ascending voice frame described by the ADSP
BP, sends to network side after being processed by the BP.
It should be noted that in the present embodiment, external encryption device and BP/ADSP can specifically be filled by serial communication
Divide has the adjustable advantage of controllable-rate using serial ports.
In addition, uplink and downlink voice flow sets up two tunnels, independent control respectively.So external encryption device,
BP and ADSP can individually be processed based on passage, such as external encryption device does decryption processing to the data of down going channel, to upper
The data of row of channels do the encryption process.
The present embodiment by such scheme, the downlink voice stream of scrambler phone by network transmission to BP after, be no longer transmitted to AP,
But external encryption hardware is directly transmitted to by BP, after external encryption hardware decryption, then it is transmitted to ADSP；The path of ascending voice stream with
Conversely, by ADSP treatment after ascending voice spread encryption to external encryption hardware, BP is transmitted to after the completion of encryption, by BP send out
To network.AP is only involved in the controlling stream of call in the present embodiment, therefore the voice conversed by redefining voice encryption flows away
To solving the drawbacks of power consumption is big when voice flow causes mobile phone communication via AP, and shorten voice flow time delay.
It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row
His property is included, so that process, method, article or device including a series of key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably implementation method.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used to so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. it is a kind of process voice call mobile terminal, it is characterised in that the mobile terminal include BBP BP and sound
Frequency word signal processor ADSP, the BP and ADSP are connected with external encryption hardware communication respectively, wherein：
The BP, for obtaining downlink speech frame, when the downlink speech frame is speech scrambling, by downlink speech frame hair
Deliver to external encryption hardware be decrypted treatment after, feed back to the ADSP；
ADSP, for obtaining ascending voice frame, when the ascending voice frame is speech scrambling, the ascending voice frame is sent
After being encrypted to external encryption hardware, the BP is fed back to.
2. it is according to claim 1 treatment voice call mobile terminal, it is characterised in that
The BP, is additionally operable to receive the downlink speech frame that network side sends；Judge whether the downlink speech frame is speech scrambling；
If the downlink speech frame is speech scrambling, the downlink speech frame is sent to external encryption hardware, added by the outside
Close hardware is decrypted treatment to the downlink speech frame；
The ADSP, is additionally operable to receive the downlink speech frame after the external encryption hardware decryption treatment, and to the downlink voice
Frame is exported after being processed and played.
3. it is according to claim 2 treatment voice call mobile terminal, it is characterised in that
The ADSP, is additionally operable to obtain ascending voice frame, after processing the ascending voice frame, judges the ascending voice
Whether frame is speech scrambling；If the ascending voice frame is speech scrambling, the ascending voice frame is sent to external encryption
Hardware, is encrypted by the external encryption hardware to the ascending voice frame；
The BP, is additionally operable to receive the ascending voice frame after the external encryption hardware encryption, sent after being processed to
Network side.
4. it is according to claim 3 treatment voice call mobile terminal, it is characterised in that
The BP, if it is not speech scrambling to be additionally operable to the downlink speech frame, the downlink speech frame is sent to described
ADSP, exports after being processed by the ADSP and plays；
The ADSP, if being additionally operable to the ascending voice frame for speech scrambling, the ascending voice frame is sent to described
BP, sends to network side after being processed by the BP.
5. according to any one of claim 1-4 treatment voice call mobile terminal, it is characterised in that the outside
Encryption hardware is connected with the BP and ADSP by serial communication；The ascending voice frame and downlink speech frame use independent void
Intend channel transfer.
6. a kind of mobile terminal sound call handling method, it is characterised in that the mobile terminal includes BP and ADSP, the BP
It is connected with external encryption hardware communication respectively with ADSP, methods described includes：
The BP or ADSP obtains speech frame；
When the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and is decrypted treatment by the BP
Afterwards, the ADSP is fed back to, or, the ADSP is sent to external encryption hardware the speech frame after being encrypted,
Feed back to the BP.
7. voice call processing method according to claim 6, it is characterised in that the step of BP obtains speech frame is wrapped
Include：
The BP receives the downlink speech frame that network side sends, and judges whether the downlink speech frame is speech scrambling；
It is described when the speech frame is speech scrambling, the speech frame is sent to external encryption hardware and is decrypted by the BP
Include after treatment, the step of feed back to the ADSP：
If the downlink speech frame is speech scrambling, the BP sends to external encryption hardware the downlink speech frame, by
The external encryption hardware is decrypted treatment to the downlink speech frame；
ADSP receives the downlink speech frame after external encryption hardware decryption treatment, and after processing the downlink speech frame
Output is played.
8. voice call processing method according to claim 6, it is characterised in that the step of ADSP obtains speech frame
Including：
Whether the ADSP obtains ascending voice frame, after processing the ascending voice frame, judges the ascending voice frame
It is speech scrambling；
The ADSP is sent to external encryption hardware the speech frame after being encrypted, and is wrapped the step of feed back to the BP
Include：
If the ascending voice frame is speech scrambling, the ADSP sends to external encryption hardware the ascending voice frame,
The ascending voice frame is encrypted by the external encryption hardware；
The BP receives the ascending voice frame after the external encryption hardware encryption, is sent after being processed to network side.
9. voice call processing method according to claim 7, it is characterised in that
The BP judges also to include after the step of whether downlink speech frame is speech scrambling：
If the downlink speech frame is not speech scrambling, the BP sends to the ADSP downlink speech frame, by institute
State to be exported after ADSP is processed and play.
10. voice call processing method according to claim 8, it is characterised in that
The ADSP judges also to include after the step of whether the ascending voice frame is speech scrambling：
If the ascending voice frame is not speech scrambling, the ADSP sends to the BP ascending voice frame, by institute
State and sent after BP is processed to network side.
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| CN109951590B (en) * | 2017-12-21 | 2020-11-06 | 成都鼎桥通信技术有限公司 | Private network terminal audio isolation automatic test method and terminal |
| CN110035082A (en) * | 2019-04-15 | 2019-07-19 | 北京北信源信息安全技术有限公司 | A kind of interchanger admission authentication method, interchanger and system |
| CN110035082B (en) * | 2019-04-15 | 2020-10-13 | 北京北信源信息安全技术有限公司 | Switch access authentication method, switch and system |
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Application publication date: 20170613 |