WO2018133792A1 - 一种数据处理方法和语音数据卡 - Google Patents

一种数据处理方法和语音数据卡 Download PDF

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Publication number
WO2018133792A1
WO2018133792A1 PCT/CN2018/072985 CN2018072985W WO2018133792A1 WO 2018133792 A1 WO2018133792 A1 WO 2018133792A1 CN 2018072985 W CN2018072985 W CN 2018072985W WO 2018133792 A1 WO2018133792 A1 WO 2018133792A1
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data
voice data
mbim
voice
processing module
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PCT/CN2018/072985
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English (en)
French (fr)
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田军
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中兴通讯股份有限公司
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Publication of WO2018133792A1 publication Critical patent/WO2018133792A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/0012Details of application programming interfaces [API] for telephone networks; Arrangements which combine a telephonic communication equipment and a computer, i.e. computer telephony integration [CPI] arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

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  • Embodiments of the present invention relate to, but are not limited to, the field of mobile communications, and in particular, to a data processing method and a voice data card.
  • a data card product with a voice call function (hereinafter referred to as a voice data card) is mainly connected to a host through a USB (Universal Serial Bus) port, mainly by enumerating individual voices to the host. Port to complete the call function.
  • USB Universal Serial Bus
  • MBIM Mobile Broadband Interface Model
  • the MBIM protocol is an efficient and highly scalable protocol.
  • MBIM is widely used in mobile devices such as notebook/Ultrabook, Tablet, and Pad with mobile broadband. It is powered by multiple USB/IFs such as Intel and Microsoft. Forum, USB Developer Forum)
  • USB/IFs such as Intel and Microsoft. Forum, USB Developer Forum
  • a new interface standard proposed by members, MBIM unifies mobile broadband devices (USB data card/net card, NGFF (next-generation form factor) data card, etc.) and PC End interface standard.
  • USB data card/net card NGFF (next-generation form factor) data card, etc.
  • PC End interface standard PC End interface standard.
  • this protocol has gradually become a general-purpose protocol, and drivers have been integrated internally on both Windows and Linux systems.
  • Embodiments of the present invention provide a data processing method and a voice data card.
  • an embodiment of the present invention provides a data processing method, including: receiving MBIM data from a USB module; determining whether the MBIM data is predetermined format data; and determining that the MBIM data is the predetermined format data, The voice data is extracted from the predetermined format data; the voice data is sent to the voice data processing module for processing.
  • the predetermined format data is data in a Device Service Stream (DSS) format.
  • DSS Device Service Stream
  • the method before receiving the MBIM data from the USB module, the method further includes: reporting the supported service to the host, where the supported service includes: a DSS data service.
  • the method further includes: the MBIM CID processing module receiving the control command issued by the host, wherein the control command includes: And turning on the instruction; the MBIM CID processing module, in response to the opening instruction, controls to allow the voice data to be carried through the predetermined format data.
  • the method further includes: the MBIM CID processing module receiving a control command sent by the host, where the control command includes: a shutdown command
  • the MBIM CID processing module controls to prohibit the carrying of the voice data by the predetermined format data in response to the closing instruction.
  • the method further includes: receiving voice data from the voice data processing module; packaging the voice data into an NCM Transfer Block (NTB Transfer Block, NTB for short), and passing the NTB through the USB module. Send to the host.
  • NCM Transfer Block NTB Transfer Block, NTB for short
  • the foregoing NTB includes: an NCM Transfer Headers (NCM), an NCM Datagram Pointers (NDP), and a voice data carrier, where: the foregoing NTH is used. Identifying the transmission type, length, and offset address information of the NDP; the NDP is used to carry the offset address and length of each voice data packet in the DSS data packet; the voice data carrier is used to store the voice data packet.
  • NCM Transfer Headers NCM
  • NDP NCM Datagram Pointers
  • voice data carrier is used to store the voice data packet.
  • one of the above NTBs includes: DSS data, or DSS data and IP data.
  • the computer readable storage medium of the embodiment of the present invention stores computer executable instructions, and the computer executable instructions are implemented by the processor to implement the data processing method described above.
  • an embodiment of the present invention provides a voice data card, including: an MBIM data processing module, where the MBIM data processing module includes: a first receiving unit configured to receive MBIM data from a USB module; determining a unit, setting Determining whether the MBIM data is the predetermined format data; the extracting unit is configured to extract the voice data from the predetermined format data in a case where the MBIM data is determined to be the predetermined format data; and the transmitting unit is configured to set the voice data Send to the voice data processing module for processing.
  • the predetermined format data is data of a device service data stream DSS format.
  • the voice data card further includes: a Mobile Broadband Network Adapter Command Identifier (MBIM CID) processing module, configured to before the MBIM data processing module receives the MBIM data from the USB module. And reporting the supported service to the host, wherein the supported services include: DSS data service.
  • MBIM CID Mobile Broadband Network Adapter Command Identifier
  • the MBIM CID processing module is further configured to: after the MBIM CID processing module reports the supported service to the host, the MBIM data processing module receives the MBIM data from the USB module, and receives the MBIM data from the USB module. And a control instruction, wherein the control command includes: an open command; and in response to the open command, the control allows the voice data to be carried through the predetermined format data.
  • the MBIM CID processing module is further configured to: after the MBIM data processing module sends the voice data to the voice data processing module for processing, receive the control command sent by the host, where the control command includes The closing command, in response to the closing command, controls prohibiting the carrying of the voice data by the predetermined format data.
  • the MBIM data processing module further includes: a second receiving unit configured to receive voice data from the voice data processing module; and a packaging unit configured to encapsulate the voice data into an NTB, and the NTB Send to the host through the above USB module.
  • the NTB includes: an NTH, an NDP, and a voice data carrier, where: the NTH is used to identify a transmission type, a length, and an offset address information of the NDP; and the NDP is configured to carry each of the DSS data packets. Offset address and length of the voice data packet; the voice data carrier is used to store voice data packets.
  • one of the above NTBs includes: DSS data, or DSS data and IP data.
  • the beneficial effects of the embodiments of the present invention are as follows:
  • the protocol can not only transmit IP data, but also transmit data in a predetermined format, so that the hardware interface is not added, and there is no need to enumerate multiple serial ports. Then, the voice data transmission between the voice data card and the host can be realized, thereby simply and effectively realizing the data transmission between the voice data card and the host.
  • FIG. 1 is a schematic structural diagram of realizing voice data transmission between a data card and a host by enumerating a plurality of serial ports;
  • FIG. 2 is a schematic structural diagram of realizing voice data transmission between a data card and a host by adding a hardware interface
  • FIG. 3 is a schematic structural diagram of a voice data card in an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for processing a data in an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of implementing voice data transmission between a data card and a host in an embodiment of the present invention
  • FIG. 6 is a flowchart of receiving control of a control command in an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a protocol data format in an embodiment of the present invention.
  • the present application provides a data processing method and a voice data card.
  • the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.
  • the data card product is connected to the host through a USB (Universal Serial Bus) port, in addition to providing data access, it can also support voice call function, using the MIC (microphone, microphone) and SPEAKER on the host ( The speaker) acts as a carrier for voice acquisition and playback, and then makes a voice call through the data card.
  • MIC microphone, microphone
  • SPEAKER SPEAKER
  • Method 1 Enumerate a separate AT port and VOUSB port to the host to specifically complete the voice call function. As shown in FIG. 1, the AT port is set to send/receive voice control commands, and the VOUSB port is set to implement voice data transmission.
  • Mode 2 As shown in FIG. 2, a separate AT port or MBIM port is enumerated to the host, and is set to implement, for example, a voice call related control function, and an interface is added to the hardware (for example: I2C bus, or MIC, SPEAKER) Hard link), through the hardware interface to achieve voice data transmission with the host.
  • a voice call related control function for example: I2C bus, or MIC, SPEAKER) Hard link
  • the device that exists in the above mode 1 needs to enumerate at least two serial ports to the host. You need to install the serial port driver on the host. The host needs to maintain the state between multiple ports. In addition, because multiple ports increase the transmission protocol overhead, the impact is affected. Transmission efficiency, the presence of the above mode 2 adds additional hardware connections, requiring the host device to provide an additional hardware-specific connection interface in addition to the USB interface, and does not have versatility.
  • the MBIM data processing module may include: a first receiving unit 301, The determining unit 302, the extracting unit 303, and the transmitting unit 304, wherein:
  • the first receiving unit 301 is configured to receive MBIM data from the USB module.
  • the voice data card supports the DSS (Device Service Stream) data extension function by replying to the host, indicating that the voice data card supports DSS custom data transmission in addition to IP (Internet Protocol) data transmission.
  • a control command can be provided for controlling whether the voice data module opens the voice channel.
  • the MBIM data processing module mainly processes data transmission between the data card and the host, and extends the NCM (Network Control Model) protocol based on the original support only standard IP data.
  • NCM Network Control Model
  • the MBIM data can be received from the USB module without an additional hardware interface, such as an I2C bus or the like.
  • the determining unit 302 is arranged to determine whether the MBIM data is predetermined format data.
  • the predetermined format data may be data in a DSS format.
  • the determining unit 302 may determine whether the received data is data in a DSS format. If the received data is not data in a DSS format, for example, it is an IP. The data is processed according to the flow of IP data. If it is determined to be data in the DSS format, it means that it carries the voice data from the host.
  • the extracting unit 303 is configured to extract the voice data from the predetermined format data in the case where it is determined that the MBIM data is the predetermined format data.
  • the extracting unit 303 After determining that the DSS data carrying the voice data is carried, the extracting unit 303 can extract the voice data therefrom.
  • the sending unit 304 is configured to send the voice data to the voice data processing module for processing.
  • the MBIM data processing module may be configured to report the supported service to the host before receiving the MBIM data from the USB module, where the supported services include : DSS Data Service.
  • the transmitted instructions may mainly have an open command (OPEN) and a close command (CLOSE), that is, the MBIM CID processing module may also be configured to receive the supported service after the MBIM CID processing module reports the support to the host, and the MBIM data processing module receives the received from the USB module.
  • OPEN open command
  • CLOSE close command
  • the MBIM CID processing module may also be configured to receive the supported service after the MBIM CID processing module reports the support to the host, and the MBIM data processing module receives the received from the USB module.
  • the control command includes: an open command
  • the control allows the voice data to be carried through the predetermined format data
  • the voice data is sent to the voice data processing in the MBIM data processing module.
  • the module receives a control command issued by the host, where the control command includes: a shutdown command; and in response to the shutdown command, the control prohibits carrying the voice data through the predetermined format data.
  • the method may include: a second receiving unit configured to receive voice data from the voice data processing module; and a packaging unit configured to encapsulate the voice data into NTB (NCM Transfer) Block, NCM transmission unit), sends NTB to the host through the USB module. That is, voice data is transmitted to the host.
  • NTB NCM Transfer
  • NCM transmission unit NTB
  • the IP data and the DSS data can be transmitted by, for example, a single NTB can only contain DSS data, or can be a single NTB. Contains DSS data and IP data.
  • this example also provides a data processing method, as shown in FIG. 4, which may include steps 401-424.
  • Step 401 Receive MBIM data from the USB module.
  • the MBIM data from the USB module can be received by the MBIM data processing module.
  • the MBIM CID processing module can report the supported service to the host, wherein the supported services include: a DSS data service.
  • the MBIM CID processing module may receive the control command issued by the host, before the MBIM data processing module receives the MBIM data from the USB module.
  • the control command includes: an open command; and the MBIM CID processing module controls to allow the voice data to be carried through the predetermined format data in response to the open command.
  • the MBIM CID processing module may receive a control instruction issued by the host, where the control instruction includes: a shutdown instruction; MBIM The CID processing module controls to prohibit the carrying of the voice data by the predetermined format data in response to the closing instruction.
  • Step 402 Determine whether the MBIM data is predetermined format data.
  • the predetermined format data may be data in a DSS format.
  • Step 403 In the case where it is determined that the MBIM data is the predetermined format data, the voice data is extracted from the predetermined format data.
  • Step 404 Send the voice data to the voice data processing module for processing.
  • voice data from the voice data processing module may be received by the MBIM data processing module; the MBIM data processing module encapsulates the voice data into NTB, and the NTB passes the USB The module is sent to the host.
  • the NTB may include only DSS data, and may also include: DSS data and IP data.
  • the MBIM protocol is extended, and voice data transmission can be implemented through the MBIM port, including: MBIM CID processing module, MBIM data processing module, and voice data processing module.
  • the data card device supports the DSS data extension function by replying to the host, indicating that the device itself supports DSS custom data transmission in addition to supporting IP data transmission.
  • the MBIM CID processing module processes the command to notify the voice data processing module to open the voice channel.
  • the MBIM data processing module mainly deals with data transmission between the data card and the host.
  • the NCM protocol is expanded, and the DSS data format is extended to transmit voice data, and the voice data is encapsulated. Transfer to NTB.
  • the voice data is extracted and sent to the voice processing module.
  • the voice data is encapsulated according to the NCM protocol, then transmitted to the USB module, and sent to the host by the USB module.
  • the voice processing module completes the processing of the voice data, and when receiving the DSS data control CID, implements some initialization operations, and turns on or off the voice channel and other functions. In addition, the voice processing module performs interaction with the DSS voice data in the MBIM data processing module to implement voice transmission.
  • FIG. 5 is a schematic structural diagram of a data card that provides voice data transmission through an MBIM port, which enumerates MBIM ports to a host.
  • the implementation of voice data transmission is mainly completed by three modules: MBIM CID processing module, MBIM data processing module and voice data processing module.
  • the MBIM CID processing module (corresponding to the MBIM CID processing module of FIG. 3) mainly deals with the interaction of various control commands between the data card and the host. Based on the original standard CID and voice call CID, the DSS data control CID is expanded to control the voice data stream.
  • the MBIM data processing module (corresponding to the MBIM data processing module of FIG. 3) mainly processes data transmission between the data card and the host, and expands the NCM protocol on the basis of the original support only standard IP data, and expands the DSS data.
  • the format is used to transfer voice data.
  • the voice data is extracted and sent to the voice processing module.
  • the voice data is encapsulated according to the NCM protocol, then transmitted to the USB module, and sent to the host through the USB module.
  • the voice processing module (corresponding to the voice data processing module of FIG. 3) completes the processing of the voice data, and when receiving the DSS data control CID, implements some initialization operations, and turns on or off the voice channel and the like. In addition, the voice processing module performs interaction with the DSS voice data in the MBIM data processing module to implement voice transmission.
  • the DSS data service When the service supported by the host is reported to the host, the DSS data service is added, indicating that the custom DSS data other than the IP packet is supported in the data transmission.
  • the unique identifier for the DSS data service is c08a26dd-7718-4382-8482-6e0d583c4d0e.
  • one or more data streams can be defined in the DSS service, and are respectively represented by DSS0, DSS1 or DSSx (x is an integer). Considering that in this example only extended support for voice data transmission, only DSS0 can be defined.
  • the CID includes, but is not limited to, an OPEN instruction and a CLOSE instruction.
  • OPEN instruction the voice data processing module is notified to prepare for voice data transmission.
  • CLOSE command the voice data processing module is notified to turn off the voice data transmission.
  • the original data transmission protocol is expanded.
  • the DSS data format is extended in the NTB, and the voice data is encapsulated in the DSS data, and each NTB (NCM Transfer Block, NCM transmission)
  • NCM Network Control Model
  • network control model can be divided into NTH (NCM Transfer Headers), NDP (NCM Datagram Pointers), and actual data.
  • the NTH is used to identify the transmission type, the length, and the offset address information of the NDP.
  • the NDP includes the detailed information of the DSS packet, which may include: an offset address and a length of each voice packet; the actual data portion stores the voice. data pack.
  • the module judges that if it is a DSS (Device Service Stream) data format, the voice data packet is extracted and sent to the voice data processing module.
  • DSS Device Service Stream
  • the voice data packet may be encapsulated into NTB according to the protocol format as shown in FIG. 7, and then sent to the USB module.
  • Mode 1 A single NTB contains only DSS data
  • Mode 2 A single NTB contains DSS data and IP data.
  • the voice processing module performs interaction with the DSS voice data in the MBIM data processing module to implement voice transmission.
  • the user can directly connect the data card to the on-board computer, and only need a USB interface to complete the transmission of voice data, which is relatively versatile. .
  • the computer readable storage medium of the embodiment of the present invention stores computer executable instructions, and the computer executable instructions are implemented by the processor to implement the data processing method described above.
  • computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media.
  • Computer storage media include, but are not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), and Electrically Erasable Programmable Read-only Memory (EEPROM). Flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical disc storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or Any other medium used to store the desired information and that can be accessed by the computer.
  • communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .
  • the data processing method and the voice data card provided by the embodiments of the present invention can easily and effectively implement the voice data between the voice data card and the host without adding a hardware interface and without enumerating multiple serial ports. transmission.

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Abstract

一种数据处理方法和语音数据卡,其中,该方法包括:接收来自USB模块的MBIM数据;确定上述MBIM数据是否为预定格式数据;在确定上述MBIM数据为上述预定格式数据的情况下,从上述预定格式数据中提取出语音数据;将上述语音数据发送至语音数据处理模块进行处理。

Description

一种数据处理方法和语音数据卡 技术领域
本发明实施例涉及但不限于移动通讯领域,特别是一种数据处理方法和语音数据卡。
背景技术
目前,带有语音通话功能的数据卡产品(以下简称为语音数据卡),主要是通过USB(Universal Serial Bus,通用串行总线)端口与主机连接,主要是通过向主机枚举出单独的语音端口以完成通话功能。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
在完成一款车载MiFi(Mobile Wi-Fi,便携式Wi-Fi)项目的研发过程中,发现需要维护的端口数量太多,针对语音传输,就存在AT端口和VOUSB(Voice Over USB,基于USB的语音)端口,其中,AT端口用来发送/接收语音控制指令,VOUSB端口用来传输通话中的语音数据。这种方式,需要在主机上安装串口驱动,以及维护多个端口的状态,用户使用起来不方便。
还有一种方式,是在使用MBIM(Mobile Broadband Interface Model,移动宽带网络适配器)端口来承载语音控制功能,同时扩展另外的硬件接口来完成语音数据的传输(例如:I2C总线等方式)。与上一种方式相比,有一定的改善,但是由于增加了硬件上的连接,限制了使用的广泛性。例如,在车机这种一般只提供USB接口的主机上无法使用。
同时,MBIM协议是一种高效传输,扩展性很强的协议,MBIM是伴随着移动宽带在notebook/Ultrabook,Tablet,Pad等移动设备广泛应用,由Intel,Microsoft等多家USB/IF(USB Implementers Forum,USB开发者论坛)成员提出的一个新的接口标准,MBIM统一了移动宽带设备(USB数据卡/上网卡 之类,NGFF(next-generation form factor,下一代规格)数据卡等)和PC端的接口标准。另外,随着最新的Linux内核已经对MBIM协议的支持,此协议已经逐渐成为一种通用协议,在windows和Linux系统上都已经内部集成了驱动程序。
本发明实施例提供一种数据处理方法和语音数据卡。
一方面,本发明实施例提供一种数据处理方法,包括:接收来自USB模块的MBIM数据;确定上述MBIM数据是否为预定格式数据;在确定上述MBIM数据为上述预定格式数据的情况下,从上述预定格式数据中提取出语音数据;将上述语音数据发送至语音数据处理模块进行处理。
在示例性的实施方式中,上述预定格式数据为设备服务数据流(Device Service Stream,简称为DSS)格式的数据。
在示例性的实施方式中,在接收来自USB模块的MBIM数据之前,上述方法还包括:向主机上报支持的服务,其中,上述支持的服务包括:DSS数据服务。
在示例性的实施方式中,在向主机上报支持的服务之后,接收来自USB模块的MBIM数据之前,上述方法还包括:MBIM CID处理模块接收主机下发的控制指令,其中,上述控制指令包括:开启指令;上述MBIM CID处理模块响应于上述开启指令,控制允许通过上述预定格式数据携带语音数据。
在示例性的实施方式中,在将上述语音数据发送至语音数据处理模块进行处理之后,上述方法还包括:上述MBIM CID处理模块接收主机下发的控制指令,其中,上述控制指令包括:关闭指令;上述MBIM CID处理模块响应于上述关闭指令,控制禁止通过上述预定格式数据携带语音数据。
在示例性的实施方式中,上述方法还包括:接收来自上述语音数据处理模块的语音数据;将上述语音数据封装成NCM传输单元(NCM Transfer Block,简称为NTB),将上述NTB通过上述USB模块发送至主机。
在示例性的实施方式中,上述NTB包括:NCM传输头部(NCM Transfer Headers,简称为NTH)、NCM数据块指针(NCM Datagram Pointers,简称为NDP)和语音数据载体,其中:上述NTH用于标识传输类型、长度以及 NDP的偏移地址信息;上述NDP用于携带DSS数据包中每一个语音数据包的偏移地址和长度;上述语音数据载体用于存放语音数据包。
在示例性的实施方式中,一个上述NTB包括:DSS数据,或者,DSS数据和IP数据。
本发明实施例计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现上述的数据处理方法。
另一方面,本发明实施例提供一种语音数据卡,包括:MBIM数据处理模块,其中,上述MBIM数据处理模块包括:第一接收单元,设置成接收来自USB模块的MBIM数据;确定单元,设置成确定上述MBIM数据是否为预定格式数据;提取单元,设置成在确定上述MBIM数据为上述预定格式数据的情况下,从上述预定格式数据中提取出语音数据;发送单元,设置成将上述语音数据发送至语音数据处理模块进行处理。
在示例性的实施方式中,上述预定格式数据为设备服务数据流DSS格式的数据。
在示例性的实施方式中,语音数据卡还包括:移动宽带网络适配器命令标识符(MBIM Command Identifier,简称为MBIM CID)处理模块,设置成在上述MBIM数据处理模块接收来自USB模块的MBIM数据之前,向主机上报支持的服务,其中,上述支持的服务包括:DSS数据服务。
在示例性的实施方式中,上述MBIM CID处理模块还设置成:在上述MBIM CID处理模块向主机上报支持的服务之后,上述MBIM数据处理模块接收来自USB模块的MBIM数据之前,接收主机下发的控制指令,其中,上述控制指令包括:开启指令;响应于上述开启指令,控制允许通过上述预定格式数据携带语音数据。
在示例性的实施方式中,上述MBIM CID处理模块还设置成在上述MBIM数据处理模块将上述语音数据发送至语音数据处理模块进行处理之后,接收主机下发的控制指令,其中,上述控制指令包括:关闭指令,响应于上述关闭指令,控制禁止通过上述预定格式数据携带语音数据。
在示例性的实施方式中,上述MBIM数据处理模块还包括:第二接收单 元,设置成接收来自上述语音数据处理模块的语音数据;封装单元,设置成将上述语音数据封装成NTB,将上述NTB通过上述USB模块发送至主机。
在示例性的实施方式中,上述NTB包括:NTH、NDP和语音数据载体,其中:上述NTH用于标识传输类型、长度以及NDP的偏移地址信息;上述NDP用于携带DSS数据包中每一个语音数据包的偏移地址和长度;上述语音数据载体用于存放语音数据包。
在示例性的实施方式中,一个上述NTB包括:DSS数据,或者,DSS数据和IP数据。
本发明实施例有益效果如下:通过扩展了MBIM协议,使得该协议不仅可以传输IP数据,还可以传输预定格式的数据,从而使得在不增加硬件接口,且不需要枚举出多个串口的情况下,就可以实现语音数据卡与主机之间的语音数据传输,从而简单有效实现语音数据卡与主机之间的数据传输。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
图1是通过枚举多个串口实现数据卡与主机之间语音数据传输的结构示意图;
图2是通过增加硬件接口实现数据卡与主机之间语音数据传输的结构示意图;
图3是本发明实施例中语音数据卡的结构示意图;
图4是本发明实施例中数据处理方法的方法流程图;
图5是本发明实施例中实现数据卡与主机之间语音数据传输的结构示意图;
图6是本发明实施例中控制指令的接收控制流程图;
图7是本发明实施例中协议数据格式示意图。
本发明的实施方式
本申请提供了一种数据处理方法和语音数据卡,以下结合附图以及实施例,对本申请进行进一步详细说明。
考虑到数据卡产品通过USB(Universal Serial Bus,通用串行总线)端口与主机连接,除了提供数据上网功能之外,还可以支持语音通话功能,利用主机上的MIC(microphone,麦克风)和SPEAKER(扬声器)作为语音采集和播放的载体,然后通过数据卡实现语音通话。目前,数据卡实现语音通话功能的主要做法有以下两种方式:
方式1:向主机枚举出单独的AT端口以及VOUSB端口,专门完成语音通话功能。如图1所示,其中,AT端口设置成发送/接收语音控制指令,VOUSB端口设置成实现语音数据的传输。
这种方式需要在主机上安装串口驱动,以及维护多个端口的状态,用户使用起来不方便。
方式2:如图2所示,向主机枚举出单独的AT端口或者MBIM端口,设置成实现例如:语音通话相关的控制功能,同时在硬件上增加接口(例如:I2C总线,或者MIC、SPEAKER的硬连接线),通过硬件接口来实现和主机之间的语音数据传输。
针对上述方式1所存在的设备需要向主机枚举至少两个串口,需要在主机上安装串口驱动,主机需要维护多个端口之间的状态,另外由于多个端口会增加传输协议的开销,影响传输效率,上述方式2所存在的增加了额外的硬件连接,要求主机设备除了USB接口之外,还需要提供额外的硬件专用连接接口,不具备通用性。
考虑到可以对MBIM协议进行扩展,通过MBIM端口实现语音数据的传输。为此,在本例中,提供了一种语音数据卡,该语音数据卡中增加了MBIM数据处理模块,其中,如图3所示,该MBIM数据处理模块可以包括:第一接收单元301、确定单元302、提取单元303和发送单元304,其中:
第一接收单元301,设置成接收来自USB模块的MBIM数据。
语音数据卡通过向主机答复支持DSS(Device Service Stream,设备服务数据流)数据扩展功能,表明该语音数据卡除了支持IP(Internet Protocol, 网络协议)数据传输之外,还支持DSS自定义数据传输。在示例性的实施方式中,可以设置一个控制命令,用于控制语音数据模块是否打开语音通道。
该MBIM数据处理模块主要是处理数据卡与主机之间的数据传输,在原有仅支持标准IP数据的基础上,对NCM(Network Control Model,网络控制模型)协议进行了扩展。
对于第一接收单元301而言,可以从USB模块接收MBIM数据,而不需要通过额外的硬件接口,例如:I2C总线等。
确定单元302,设置成确定MBIM数据是否为预定格式数据。
该预定格式数据可以是DSS格式的数据,在接收到数据之后,确定单元302可以判断接收到的这个数据是否为DSS格式的数据,如果接收到的这个数据不是DSS格式的数据,例如:是IP数据,那就按照IP数据的流程进行处理。如果确定是DSS格式的数据,那么就表示其中携带有来自主机的语音数据。
提取单元303,设置成在确定MBIM数据为预定格式数据的情况下,从预定格式数据中提取出语音数据。
在确定是携带有语音数据的DSS数据之后,提取单元303就可以从其中提取出语音数据。
发送单元304,设置成将语音数据发送至语音数据处理模块进行处理。
对于上述语音数据卡中的MBIM CID处理模块(设置成进行指令传输),还可以设置成在MBIM数据处理模块接收来自USB模块的MBIM数据之前,向主机上报支持的服务,其中,支持的服务包括:DSS数据服务。
传输的指令主要可以有开启指令(OPEN)和关闭指令(CLOSE),即,上述MBIM CID处理模块还可以设置成在MBIM CID处理模块向主机上报支持的服务之后,MBIM数据处理模块接收来自USB模块的MBIM数据之前,接收主机下发的控制指令,其中,控制指令包括:开启指令;响应于开启指令,控制允许通过预定格式数据携带语音数据;在MBIM数据处理模块将语音数据发送至语音数据处理模块进行处理之后,接收主机下发的控制指令,其中,控制指令包括:关闭指令;响应于关闭指令,控制禁止通过预定格式 数据携带语音数据。
在一个实施方式中,对于上述MBIM数据处理模块而言,其可以包括:第二接收单元,设置成接收来自语音数据处理模块的语音数据;封装单元,设置成将语音数据封装成NTB(NCM Transfer Block,NCM传输单元),将NTB通过USB模块发送至主机。即,向主机发送语音数据。
考虑到MBIM协议主要是为了传输IP数据,当扩展了DDS数据之后,可以通过以下方式进行IP数据和DSS数据的传输,例如,可以单独一个NTB中只包含DSS数据,也可以是单独一个NTB中包含了DSS数据和IP数据。
基于上述的语音数据卡,本例还提供了一种数据处理方法,如图4所示,可以包括步骤401-步骤404。
步骤401:接收来自USB模块的MBIM数据。
实际实现的时候,可以由MBIM数据处理模块接收来自USB模块的MBIM数据。为了实现基于MBIM协议的语音数据传输,在MBIM数据处理模块接收来自USB模块的MBIM数据之前,MBIM CID处理模块可以向主机上报支持的服务,其中,支持的服务包括:DSS数据服务。
在示例性的实施方式中,在MBIM CID处理模块向主机上报支持的服务之后,MBIM数据处理模块接收来自USB模块的MBIM数据之前,MBIM CID处理模块可以接收主机下发的控制指令,其中,上述控制指令包括:开启指令;MBIM CID处理模块响应于上述开启指令,控制允许通过预定格式数据携带语音数据。
在一个示例性的实施方式中,在MBIM数据处理模块将语音数据发送至语音数据处理模块进行处理之后,MBIM CID处理模块可以接收主机下发的控制指令,其中,控制指令包括:关闭指令;MBIM CID处理模块响应于上述关闭指令,控制禁止通过预定格式数据携带语音数据。
步骤402:确定MBIM数据是否为预定格式数据。
在示例性的实施方式中,上述预定格式数据可以是DSS格式的数据。
步骤403:在确定MBIM数据为预定格式数据的情况下,从上述预定格式数据中提取出语音数据。
步骤404:将语音数据发送至语音数据处理模块进行处理。
在一个示例性的实施方式中,为了实现向主机的语音数据发送,可以由MBIM数据处理模块接收来自语音数据处理模块的语音数据;MBIM数据处理模块将语音数据封装成NTB,将NTB通过上述USB模块发送至主机。该NTB可以仅包括DSS数据,也可以包括:DSS数据和IP数据。
下面结合一具体实施例对上述数据处理方法和语音数据卡进行说明,然而,值得注意的是,该具体实施例仅是为了更好地说明本申请,并不构成对本申请的不当限定。
在本实施例中,对MBIM协议进行了扩展,通过MBIM端口可以实现语音数据的传输,包括:MBIM CID处理模块、MBIM数据处理模块和语音数据处理模块。
数据卡设备通过向主机答复支持DSS数据扩展功能,表示设备本身除了支持IP数据传输,还支持DSS自定义数据传输。当接收到主机下发的激活DSS自定义数据连接CID命令的时候,MBIM CID处理模块处理此命令,通知语音数据处理模块打开语音通道。
MBIM数据处理模块主要处理数据卡与主机之间的数据传输,在原有仅支持标准IP数据的基础之上,对NCM协议进行了扩充,扩展了DSS数据格式用来传输语音数据,将语音数据封装到NTB中进行传输。当接收到来自USB模块的MBIM数据时,判断如果是DSS数据格式,提取其中的语音数据,发往语音处理模块。当接收到来自语音处理模块的语音数据时,对语音数据按照NCM协议进行封装,然后传递给USB模块,由USB模块发送至主机。
语音处理模块完成对语音数据的处理,当接收到DSS数据控制CID时,实现一些初始化操作,打开或者关闭语音通道等功能。另外,语音处理模块完成和MBIM数据处理模块中的DSS语音数据的交互,以实现语音传输。
如图5所示为通过MBIM端口提供语音数据传输的数据卡的示意性结构图,该数据卡向主机枚举MBIM端口。语音数据传输的实现主要由MBIM CID处理模块、MBIM数据处理模块和语音数据处理模块三个模块来完成。
其中,MBIM CID处理模块(对应于图3的MBIM CID处理模块)主要处理数据卡与主机之间的各种控制指令的交互。在原有的标准CID以及语音通话CID的基础之上,扩充了DSS数据控制CID,用来实现对语音数据流的控制。
MBIM数据处理模块(对应于图3的MBIM数据处理模块)主要处理数据卡与主机之间的数据传输,在原有仅支持标准IP数据的基础之上,对NCM协议进行了扩充,扩展了DSS数据格式用来传输语音数据。当接收到来自USB模块的MBIM数据时,如果是DSS数据格式,则提取其中的语音数据,发送至语音处理模块。当接收到来自语音处理模块的语音数据时,则对语音数据按照NCM协议进行封装,然后传递给USB模块,通过USB模块发送至主机。
语音处理模块(对应于图3的语音数据处理模块)完成对语音数据的处理,当接收到DSS数据控制CID时,实现一些初始化操作,打开或者关闭语音通道等功能。另外,语音处理模块完成和MBIM数据处理模块中的DSS语音数据的交互,以实现语音传输。
下面对图5所示的三个模块进行具体说明如下:
1)MBIM CID处理模块:
在向主机上报本身支持的服务时,增加DSS数据服务,表明在数据传输中支持除IP数据包之外的自定义DSS数据。DSS数据服务的唯一识别码是c08a26dd-7718-4382-8482-6e0d583c4d0e。其中,DSS服务中可以定义一个或以上的数据流,分别用DSS0、DSS1或者DSSx(x为整数)表示。考虑到在本例中仅是扩展支持语音数据传输,因此,可以仅定义DSS0。
如图6所示,当数据卡收到主机下发的针对DSS数据控制的相关CID时,其中,CID包括但不限于OPEN指令和CLOSE指令。针对OPEN指令,会通知语音数据处理模块,准备进行语音数据传输。针对CLOSE指令,会通知语音数据处理模块关闭语音数据传输。
2)MBIM数据处理模块:
针对MBIM数据传输部分,对原有的数据传输协议进行了扩充,如图7 所示,在NTB中扩展了DSS数据格式,DSS数据中封装了语音数据,每个NTB(NCM Transfer Block,NCM传输单元,其中,NCM为Network Control Model,网络控制模型)可以分为NTH(NCM Transfer Headers,NCM传输头部)、NDP(NCM Datagram Pointers,NCM数据块指针)以及实际数据三部分。其中,NTH用于标识传输类型、长度以及NDP的偏移地址信息;NDP中包括DSS数据包的详细信息,可以包括:每一个语音数据包的偏移地址和长度;实际数据部分存放的是语音数据包。本模块通过解析NTB,判断如果是DSS(Device Service Stream,设备服务数据流)数据格式,会将其中的语音数据包提取出来,发送给语音数据处理模块。
另外,当本模块接收到语音数据处理模块发送发来的语音数据包时,可以按照如图7所示的协议格式,将语音数据包封装成NTB,然后发送到USB模块。
由于MBIM协议主要是为了传输IP数据,当扩展了DSS数据之后,可以有以下几种方式来进行IP数据和DSS数据的传输。方式1:单独一个NTB中只包含DSS数据;方式2:单独一个NTB中包含了DSS数据和IP数据。
3)语音数据处理模块:
当接收到DSS数据控制CID时,可以实现初始化操作,打开或者关闭语音通道等功能。另外,语音处理模块完成和MBIM数据处理模块中的DSS语音数据的交互,以实现语音传输。
对于已经集成了MBIM协议的相关支持的主机,通过上例所提供的方案,通过用户可以直接将数据卡连接到车载电脑上,仅仅需要一个USB接口就可以完成语音数据的传输,通用性比较强。
本发明实施例计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现上述的数据处理方法。
本领域普通技术人员可以理解,上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中,在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分;例如,一个物理组件可以具有多个功能,或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实 施为由处理器,如数字信号处理器或微处理器执行的软件,或者被实施为硬件,或者被实施为集成电路,如专用集成电路。这样的软件可以分布在计算机可读介质上,计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的,术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于随机存取存储器(RAM,Random Access Memory)、只读存储器(ROM,Read-Only Memory)、电可擦除只读存储器(EEPROM,Electrically Erasable Programmable Read-only Memory)、闪存或其他存储器技术、光盘只读存储器(CD-ROM,Compact Disc Read-Only Memory)、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外,本领域普通技术人员公知的是,通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据,并且可包括任何信息递送介质。
本领域的普通技术人员可以理解,可以对本申请的技术方案进行修改或者等同替换,而不脱离本申请技术方案的精神和范围,均应涵盖在本申请的权利要求范围当中。
工业实用性
通过本发明实施例提供的数据处理方法和语音数据卡,在不增加硬件接口,且不需要枚举出多个串口的情况下,就可以简单有效实现语音数据卡与主机之间的语音数据的传输。

Claims (17)

  1. 一种数据处理方法,包括:
    接收来自通用串行总线USB模块的移动宽带网络适配器MBIM数据;
    确定所述MBIM数据是否为预定格式数据;
    在确定所述MBIM数据为所述预定格式数据的情况下,从所述预定格式数据中提取出语音数据;
    将所述语音数据发送至语音数据处理模块进行处理。
  2. 如权利要求1所述的方法,其中,所述预定格式数据为设备服务数据流DSS格式的数据。
  3. 如权利要求2所述的方法,在接收来自USB模块的MBIM数据之前,所述方法还包括:
    向主机上报支持的服务,其中,所述支持的服务包括:设备服务数据流DSS数据服务。
  4. 如权利要求3所述的方法,在向主机上报支持的服务之后,接收来自USB模块的MBIM数据之前,所述方法还包括:
    接收主机下发的控制指令,其中,所述控制指令包括:开启指令;
    响应于所述开启指令,控制允许通过所述预定格式数据携带语音数据。
  5. 如权利要求3所述的方法,在将所述语音数据发送至语音数据处理模块进行处理之后,所述方法还包括:
    接收主机下发的控制指令,其中,所述控制指令包括:关闭指令;
    响应于所述关闭指令,控制禁止通过所述预定格式数据携带语音数据。
  6. 如权利要求2所述的方法,所述方法还包括:
    接收来自所述语音数据处理模块的语音数据;
    将所述语音数据封装成网络控制模型NCM传输单元NTB,将所述NTB通过所述USB模块发送至主机。
  7. 如权利要求6所述的方法,其中,所述NTB包括:NCM传输头部 NTH、NCM数据块指针NDP和语音数据载体,其中:
    所述NTH用于标识传输类型、长度以及NDP的偏移地址信息;
    所述NDP用于携带DSS数据包中每一个语音数据包的偏移地址和长度;
    所述语音数据载体设置成存放语音数据包。
  8. 如权利要求6所述的方法,其中,一个所述NTB包括:DSS数据,或者,DSS数据和网络协议IP数据。
  9. 一种语音数据卡,包括:移动宽带网络适配器MBIM数据处理模块,其中,所述MBIM数据处理模块包括:
    第一接收单元,设置成接收来自USB模块的MBIM数据;
    确定单元,设置成确定所述MBIM数据是否为预定格式数据;
    提取单元,设置成在确定所述MBIM数据为所述预定格式数据的情况下,从所述预定格式数据中提取出语音数据;
    发送单元,设置成将所述语音数据发送至语音数据处理模块进行处理。
  10. 如权利要求9所述的语音数据卡,其中,所述预定格式数据为设备服务数据流DSS格式的数据。
  11. 如权利要求9所述的语音数据卡,还包括:移动宽带网络适配器命令标识符MBIM CID处理模块,设置成在所述MBIM数据处理模块接收来自USB模块的MBIM数据之前,向主机上报支持的服务,其中,所述支持的服务包括:DSS数据服务。
  12. 如权利要求11所述的语音数据卡,所述MBIM CID处理模块还设置成:在所述MBIM CID处理模块向主机上报支持的服务之后,所述MBIM数据处理模块接收来自USB模块的MBIM数据之前,接收主机下发的控制指令,其中,所述控制指令包括:开启指令;响应于所述开启指令,控制允许通过所述预定格式数据携带语音数据。
  13. 如权利要求11所述的语音数据卡,所述MBIM CID处理模块还设置成在所述MBIM数据处理模块将所述语音数据发送至语音数据处理模块进行处理之后,接收主机下发的控制指令,其中,所述控制指令包括:关闭 指令,响应于所述关闭指令,控制禁止通过所述预定格式数据携带语音数据。
  14. 如权利要求10所述的语音数据卡,所述MBIM数据处理模块还包括:
    第二接收单元,设置成接收来自所述语音数据处理模块的语音数据;
    封装单元,设置成将所述语音数据封装成NTB,将所述NTB通过所述USB模块发送至主机。
  15. 如权利要求14所述的语音数据卡,其中,所述NTB包括:NCM传输头部NTH、NCM数据块指针NDP和语音数据载体,其中:
    所述NTH设置成标识传输类型、长度以及NDP的偏移地址信息;
    所述NDP设置成携带DSS数据包中每一个语音数据包的偏移地址和长度;
    所述语音数据载体设置成存放语音数据包。
  16. 如权利要求14所述的语音数据库卡,其中,一个所述NTB包括:DSS数据,或者,DSS数据和IP数据。
  17. 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现权利要求1所述的数据处理方法。
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