CN101868050A - Data card and network access method thereof - Google Patents
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- CN101868050A CN101868050A CN201010207600A CN201010207600A CN101868050A CN 101868050 A CN101868050 A CN 101868050A CN 201010207600 A CN201010207600 A CN 201010207600A CN 201010207600 A CN201010207600 A CN 201010207600A CN 101868050 A CN101868050 A CN 101868050A
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Abstract
The invention provides a data card and a network access method thereof. The data card comprises a camera unit module, an ECM module, a USB bus interface module, wherein the camera unit module enables the data card to be identified as a camera device by an PC operating system; the ECM module processes and encapsulates a network request transmitted by a PC side, sends the network request to a 3G network, meanwhile, takes charge of receiving a network data packet returned by the 3G network, de-encapsulates the network data packet and transmits the network data packet to the camera unit module; the camera unit module transmits the network data packet to the PC side; and the USB bus interface module takes charge of data transmission. The technical scheme of the invention can effectively solve the problems that a Windows user installs a USB driver and the UI software is fussy and has authority limit, and can further improve the data transmission performance and enhance the user experience compared with the conventional drive-free scheme.
Description
Technical field
The present invention relates to the mobile communication technology field, more specifically, relate to a kind of data card and internet access method thereof.
Background technology
Increasingly mature along with 3G mobile broadband network technology, the user has not only proposed high request to the traditional voice service of wireless network, and the data, services of wireless network is also more and more paid attention to.The mode that usb data card wireless network inserts is good a kind of replacement scheme.Data card embeds notebook computer, not only can realize data application such as seamless broadband wireless online and video request program, the proprietary feature of mobile phones such as all right support voice communication and transmitting-receiving note.High speed USB data card wireless network access way has following advantage:
(1) can realize the quick-downloading of Large Volume Datas such as audio frequency, video and browse;
(2) have USB plug and play, advantage that transmission rate is high, can use the network service convenient, fast, efficiently.
Generally speaking, utilize the mode of usb data card online that two big classes are arranged at present: (1) device drives and software such as UI by installation usb data card on PC, i.e. usb data card and PC communication need be by self-defining device drives and application software; (2) oneself enumerating into system standard equipment, such as scsi device or HID equipment, with the trouble that the self-defined USB of less installation drives, just so-called free drive scheme.
But the place that present existing usb data card online scheme mainly has the following disadvantages and haves much room for improvement:
The mode of self-defined driving at first, is installed for need: (1) set-up time is long, operation is more loaded down with trivial details.The user needs 3-5 minute time at least, and when the user uses data card on an other computer, also needs to reinstall driver and UI software driving and the whole installations of UI software, uses more loaded down with trivial details; (2) installation process is subjected to some restrictions, might cause installing failure.Such as the enterprise customer, computer authorizing may limit (not being administrator right) to some extent, may cause software to install, and data card can't use; The software environment of subscriber computer varies, and some anti-virus software or monitoring software can stop the installation of driving and UI program, causes the PC software installation process failure of data card, and the user can't use equipment.
Secondly, drive for need not that self-defined USB is installed, it is the mode of free drive, be equipment oneself enumerate into HID equipment and (or) scsi device, though these drive systems all carry, but utilizing virtual this kind equipment that comes out of USB also is not the fastest on transfer of data, and dialer software is to be stored in the virtual CD of USB, need to move dialer software after the optical disk start-up, the use that like this can incur loss through delay the user, and in view of the deficiency of CD mode in top first kind of mode, this has also limited the further raising of online Experience Degree, so also there is at present the factor that influence user experience in the free drive method, it is longer to be mainly reflected in the time of connecting to network, and connects to network afterwards that speed is not very fast.
Summary of the invention
The objective of the invention is to propose a kind of data card and internet access method thereof for addressing the above problem.
For achieving the above object, the present invention proposes a kind of data card, and it comprises camera unit module, ECM module and usb bus interface module, wherein:
Described camera unit module makes described data card be identified as a camera equipment by PC operating system;
The network requests that described ECM module issues the PC side is handled and is encapsulated, and issues 3G network, simultaneously, be responsible for to receive the network packet that 3G network returns, and by decapsulation and be handed down to the camera unit module, passes to the PC side by the camera unit module;
Described usb bus module is responsible for the transmission of data.
Further, described data card has the middleware software that is stored in its firmware, and this middleware software is transferred to PC from described data card after described data card inserts PC.
Further, the ECM module in the described data card chip software has camera function and drives, and drives and the synergy of ECM module by camera function, for the transmission of network data provides passage.
Further, described ECM module comprises ECM driven element module and the professional submodule of ECM; Described ECM driven element module reads the data of described camera unit module, and on give the professional submodule of ECM to mail to the encapsulation work of packet before the network side, simultaneously, after the professional submodule of ECM is received network return data bag and is carried out decapsulation, ECM driven element module is responsible for the form of the data after unpacking according to webcam driver encapsulated, and issues the PC side by this data channel of webcam driver.
The present invention also proposes a kind of data card internet access method, comprising: data card is enumerated into camera equipment; The PC side system loads camera equipment corresponding driving, the network requests that described data card issues the PC side is handled and is encapsulated, and issue 3G network, simultaneously, be responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to the camera unit module, pass to the PC side by the camera unit module.
Further, utilize the characteristics of usb protocol stack under the PC side system, enumerated into the middleware software that the camera equipment stage will be stored in the data card equipment firmware at data card and be transferred to data card PC side from the data card equipment side.
Further, the newly-increased camera function of the ECM module in the data card chip software drives, and drives and the synergy of ECM module by camera function, for the transmission of network data provides the plate wing passage.
Further, when starting the camera function driver module, realize and the docking of ECM module, return or mail to the form that the data encapsulation of network side becomes camera equipment to discern, and pass through this passage of camera device drives and transmit at PC and equipment room from network side.
Further, described the middle layer software module sends to camera equipment to dialing request and other network requests interface function by PC side webcam driver, issue the webserver after these requests of camera device parses, obtain the network informations such as IP address and DNS, data clamp side is issuing camera equipment after these network information packings, camera equipment is passed to the middle layer software to these information by the webcam driver interface function, sets up dial-up connection.
Further, described system is the Windows system.
The invention has the beneficial effects as follows: adopt technical solution of the present invention, can either effectively solve the loaded down with trivial details and authority restricted problem that the Windows user installs USB driver and UI software, can further improve data transmission performance and strengthen user's Experience Degree with respect to existing free drive scheme again.
Description of drawings
Fig. 1 is the composition module map of usb data card PC side and data card equipment side among the present invention;
Fig. 2 is the realization schematic diagram of embodiment of the invention data card online;
Fig. 3 is the flow chart of embodiment of the invention data card online;
Fig. 4 is embodiment of the invention data card and PC side data interaction flow schematic diagram;
Fig. 5 is the data interaction schematic flow sheet of embodiment of the invention PC side to the data card equipment side;
Fig. 6 is the schematic flow sheet that utilizes MOD mechanism transmission the middle layer software in the embodiment of the invention.
Embodiment
The present invention utilizes the characteristics of usb protocol stack under the Windows, a kind of self-defined USB device driving that neither needs to install is proposed, can further improve the using method of speed of surfing the Internet and user experience again, to solve many defectives and the problem that existing Windows user utilizes the data card online.
The present invention is a kind of major tuneup and the lifting of present Windows being used usb data card network access down.This improvement is the result who makes full use of Windows system own characteristic, has also done corresponding modification and perfect simultaneously on the framework of equipment side.
After data card of the present invention is plugged PC, data card is enumerated into camera equipment, because it is subsidiary voluntarily that the driver of camera equipment is Windows, so system can very fast loading corresponding driving, utilize the characteristics of usb protocol stack under the Windows simultaneously, (realize dial feature and network data forwarding capability at the middleware software that the USB enumeration stage will be stored in the data card equipment firmware, certainly, this middleware software also can be that the PC side itself has) be transferred to data card PC side from the data card equipment side, for the data card equipment side, the present invention is by (the Ethernet Control Model of the ethernet control module in the data card chip software, ECM), a newly-increased camera function drives, and drives and the synergy of ECM module by camera function, for the transmission of network data provides the plate wing passage.The Windows user can realize only utilizing system's browser just can enjoy the purpose of fast network access like this, and the lifting of this speed comprises two aspects: (1) is plugged data from the user and is snapped into the connect to network reduction of time of success; (2) raising of uploading downloading rate behind the networking.
The method of utilizing the usb data card to surf the Net at the Windows user of the present invention mainly may further comprise the steps:
The first step: start the camera function driver module, and the docking of realization and ECM module.Because the present invention only need enumerate into data card a single camera equipment, and camera equipment is realized according to USB video equipment class standard, return or mail to the form that the data encapsulation of network side becomes camera equipment to discern from network side, and pass through this passage of camera device drives in PC and equipment room transmission, improve the transmission rate of network greatly.
Second step: the transmission of the middle layer software module and operation.This middle layer software module is equipment side (being the data card side) camera equipment and the mutual bridge of browser.Downwards, its can send to camera equipment to dialing request and other network requests interface function by PC side webcam driver, issues the webserver after these requests of camera device parses, obtains the network informations such as IP address and DNS.Upwards, data clamp side is issuing camera equipment after these network information packings, and camera equipment is passed to the middle layer software to these information by the webcam driver interface function, sets up dial-up connection.
The 3rd step: realize that according to MOD (MS OS DESCRIPTOR) mechanism the middle layer software module is in the storage of equipment side with report.MOD is that IHV (separate hardware manufacturer) provides a kind of method of storing the various vendor specific information of description that are called as the OS feature descriptor in equipment firmware, and supports the Windows of MOD and the version of window application to utilize control request to obtain these device descriptors under the situation that does not need user interactions.In this step, we will be according to standard and the flow process of Microsoft to MOD, and in equipment firmware, and the USB enumeration stage after equipment is plugged PC utilizes MOD mechanism to realize that the middle layer software module slave unit side reports the PC side the middleware software module stores.
The 4th step: behind device ready, promptly by system identification be camera equipment and see the middle layer software that reports in the PC side after, start the middle layer software and browser successively, begin various online application.At this moment, the online request that the PC side is initiated sends to the webserver by the webcam driver of PC side and the camera unit module of equipment side, and the data that network returns can pass through ECM module, webcam driver passage and the middle layer software module successively and flow to browser, thereby have realized the online overall process.
Characteristics of the present invention are: one, MOD mechanism can be so that dialer software be obtained by Windows in the USB enumeration stage, thereby utilize the high characteristics of USB transmission rate, make the user from plugging data card, to shorter in the mode before during this period of time of seeing dialer software and operation on the Windows, thus the rising that brings user experience.Two, USB device is directly enumerated and is camera equipment, and the PC side drive need not be installed, and utilizes the characteristic of USB camera equipment code and the characteristics of ECM module, can improve the transmission rate of data.Three, browser software or the chat tool (IE, MSN) that directly uses operating system itself to carry need not just can easily be realized functions such as web page browsing or Internet chat by other self-defining network softwares.
Further set forth the present invention below in conjunction with accompanying drawing and specific implementation.Fig. 1 is the composition module map of usb data card PC side and data card equipment side among the present invention.
As shown in Figure 1, the PC side includes browser module, the middle layer software module, webcam driver module and usb bus interface module.The effect of webcam driver module has two: (1) sends to equipment side to the various data that application program issues; (2) also be responsible for simultaneously receiving the data that the slave unit side sends over, and give the application software of PC side, as the middle layer software module in the present embodiment.So can regard the webcam driver module as connect PC side and equipment side " highway ".And the middle layer software module role and webcam driver module class are seemingly, only its connects is the driver module (as the webcam driver here) of PC side upper application software (as the browser here etc.) and lower floor, particularly, be that the diverse network request that browser is initiated is encapsulated and handles, be transmitted to the webcam driver module; Read the network data of PC side webcam driver module simultaneously, and hand to browser.The usb bus module couples together host computer side and equipment side.
Equipment side in the present embodiment (data card side) mainly comprises camera unit module, ECM module and usb bus interface module.The camera unit module equipment that makes is identified as a camera equipment by PC operating system, system just can load the webcam driver that carries like this, this is the basis of realizing free drive, the more important thing is, this programme has utilized the advantage of webcam driver itself, enlarge velocity of liquid assets and the capacity of network data on this passage, promoted the carrying capacity and the efficient of this " highway ".ECM module ACM module (as the Modem passage) more in the past, preferable performance is arranged on transmission rate, specifically, its effect is that the network requests that the PC side issues is handled and encapsulated, and issue 3G network, simultaneously, be responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to the camera unit module, give PC side by the camera unit module.
Please refer to shown in Figure 2ly, is the realization schematic diagram of present embodiment data card online.Why the internet access method that the present embodiment data card is described below in conjunction with Fig. 2 can have advantage than the occupation mode of data with existing card (comprise needs are installed drive and free drive).
Increased the camera unit module among the present invention between in the past usb bus interface and ECM module, promptly originally the network data by the transfer of ECM module drives through camera function now and receives and dispatches.Do like this for following two considerations: (1) equipment must be enumerated and be system standard equipment, can drive without user installation like this; (2) bigger than the data transmission capabilities in the existing free drive scheme, based on above factor, utilizing the camera unit module is device enumeration optimal scheme for camera equipment, and all data mutual between PC side and network all are responsible for forwarding by the camera unit module.ECM module among Fig. 2 specifically is divided into ECM driven element module and the professional submodule of ECM.ECM driven element module is responsible for reading the data of camera unit module, and on give the professional submodule of ECM to mail to the work such as encapsulation of packet before the network side, simultaneously, after the professional submodule of ECM is received network return data bag and is carried out decapsulation, ECM driven element module can be responsible for again the form of the data after unpacking according to webcam driver encapsulated, and issues the PC side by this data channel of webcam driver.Here also has a middle layer software module, though this module is the Flash district in the equipment of being stored in, but its effect is in the PC side, and be to pass to the PC side in the USB enumeration stage by the MOD mechanism among the present invention, the effect that this module is concrete is the bridge joint that carries out network dial and network data, promptly receive and dispatch the data flow between application software such as browser and the webcam driver, so its status is extremely important.
Please refer to shown in Figure 3ly, it is the flow chart of present embodiment data card online, comprises the steps:
The S301:PC side detects whether plug data card equipment, plugs data card if detect, and then enters step S302, does not plug data card as detecting, and then finishes;
S302:USB enumerates;
USB interface is enumerated described data card.
S303: judge whether the middle layer software uploads to PC,, then enter step S304, if do not upload to PC, then process ends if uploaded to PC;
The middle layer software module can the slave unit side upload to the PC side by the usb protocol stack, and understands controlled appear at (such as at desktop) in the Windows system.
S304: judge whether data card equipment is enumerated into camera equipment, if, then enter step S305, if not, process ends then;
S305: operation the middle layer software;
S306: running browser online.
After finding this executable program of described the middle layer software and operation, but the user begins to enjoy various online application with regard to open any browser.
In the said process, the transmittability of utilizing high speed USB is exposed to the PC side with the middle layer software module, rather than existing CD mode, and camera equipment is more suitable for carrying out large-capacity data transmission than HID equipment, thus the comprehensive rising that brings user experience.
Please refer to shown in Figure 4ly, is present embodiment data card and PC side data interaction flow schematic diagram, may further comprise the steps:
S401: whether the judgment data card receives the network return data, if receive, then enters step S402, if do not receive, and then cycle criterion;
The S402:ECM module is carried out the reception and the processing of network data;
S403: data by the webcam driver passage from the data card equipment effluent to the PC side;
S404: the middle layer software receives data from PC side webcam driver, and to its parsing, and enter step S405 or S406;
S405: carry out dial-up connection;
S406: browser is handled network data.
From said process as can be known, the network packet of coming from network side is at first received and is handled by the ECM module, repack with the discernible form of webcam driver, camera passage by data card equipment side and PC side flows to the PC side, and read by running the middle layer software module, and then by the corresponding analysis processing, the work of setting up of perhaps dialling perhaps reports data upper level applications such as browser.
Please refer to shown in Figure 5ly, is present embodiment PC side to the data interaction schematic flow sheet of data card equipment side, comprises the steps:
S501: whether move the middle layer software and carry out dial-up connection, if, then enter step S502, if not, step S503 then entered;
S502: the operation the middle layer software is to dial;
S503: browser is initiated network requests;
S504: the middle layer software is transmitted to webcam driver with request;
S505: judge whether to exist camera equipment,, then enter step S506 if exist, if there is no, process ends then;
S506:PC side webcam driver receives data and described data is delivered to plate side webcam driver;
The S507:ECM module reads the data of slave plate side webcam driver outflow and handles;
S508: judge whether the network requests receive is correct,, then enter step S509 if correct, if incorrect, process ends then;
S509: please described request send to network side.
From above-mentioned flow process as can be known, when the middle layer software moves, webcam driver can be received corresponding data, be transmitted to the camera unit module of equipment side through the USB passage, then the ECM module by the upper strata receives and handles, will issue network side to this dialing request at last, network can be given our the data card equipment distributing IP and network information such as DNS then, like this when upper level applications such as browser bring into operation, diverse network request meeting is issued network side according to same flow process, and receive corresponding network data, thereby finished the function of surfing the Net of this programme.
Please refer to Fig. 6, shown in, it is the schematic flow sheet that utilizes MOD mechanism transmission the middle layer software in the present embodiment, comprises the steps:
S601: beginning USB enumerates;
S602:PC obtains device descriptor;
S603: whether judgment device supports MOD, if support, then enters step S604, if do not support, and process ends then;
S604:PC obtains MOD by standard USB request;
S605: judge whether the middle layer module file is stored in correct position, if, then enter step S606, if not, process ends then;
S606:PC obtains middle layer module software by self-defined USB request;
S607: beginning the middle layer software transmission;
S608: judge whether all end of transmission of middle layer module, if, process ends then, if not, then change step S607 over to and continue transmission.
MOD mechanism, i.e. Microsoft OS Descriptor (OS of Microsoft descriptor).This mechanism is fully to excavate the result of usb protocol, because data card in the past only can utilize the word string descriptor report the string number etc. simple information, in fact according to the characteristics of Windows usb protocol stack, what it can support to reach the 16M byte-sized reports content (also relevant with Flash size in our equipment certainly), and the content that reports can be supported most of form, we have utilized this USB mechanism just, the middleware software module slave unit side when USB enumerates that is used among the present invention dial with forwarding capability is moved to the PC side, played and passed through the same function of CD mode in the past, but more faster than CD, more efficient.The flow chart of enumerating according to figure six, the middle layer software module is placed on relevant position in the equipment, and after supporting MOD mechanism by the relative set equipment that makes, in enumeration stage, at first PC can utilize the USB request of standard to obtain Microsoft OS Descriptor, after successfully obtaining this descriptor, PC can utilize self-defining USB request further to ask to be stored in the middle layer software content of equipment side ad-hoc location again, each data of supporting to upload the 64K size, actual size according to the middle layer software, by repeatedly transmission, just can successfully all be put into middle layer module the ad-hoc location of PC side at last.
Certainly; the present invention also can have numerous embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making various corresponding changes or variation according to the present invention; in every case any modification of being done within the spirit and principles in the present invention, be equal to replacements, improvement, all should be included within protection scope of the present invention.
Claims (10)
1. data card, it comprises camera unit module, ECM module and usb bus interface module, wherein:
Described camera unit module makes described data card be identified as a camera equipment by PC operating system;
The network requests that described ECM module issues the PC side is handled and is encapsulated, and issues 3G network, simultaneously, be responsible for to receive the network packet that 3G network returns, and by decapsulation and be handed down to the camera unit module, passes to the PC side by the camera unit module;
Described usb bus module is responsible for the transmission of data.
2. data card as claimed in claim 1 is characterized in that: described data card has the middleware software that is stored in its firmware, and this middleware software is transferred to PC from described data card after described data card inserts PC.
3. data card as claimed in claim 2 is characterized in that: the ECM module in the described data card chip software, and have camera function and drive, drive and the synergy of ECM module by camera function, for the transmission of network data provides passage.
4. data card as claimed in claim 3 is characterized in that: described ECM module comprises ECM driven element module and the professional submodule of ECM; Described ECM driven element module reads the data of described camera unit module, and on give the professional submodule of ECM to mail to the encapsulation work of packet before the network side, simultaneously, after the professional submodule of ECM is received network return data bag and is carried out decapsulation, ECM driven element module is responsible for the form of the data after unpacking according to webcam driver encapsulated, and issues the PC side by this data channel of webcam driver.
5. data card internet access method, comprising: data card is enumerated into camera equipment; The PC side system loads camera equipment corresponding driving, the network requests that described data card issues the PC side is handled and is encapsulated, and issue 3G network, simultaneously, be responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to the camera unit module, pass to the PC side by the camera unit module.
6. data card internet access method as claimed in claim 5, it is characterized in that: utilize the characteristics of usb protocol stack under the PC side system, enumerated into the middleware software that the camera equipment stage will be stored in the data card equipment firmware at data card and be transferred to data card PC side from the data card equipment side.
7. data card internet access method as claimed in claim 5, it is characterized in that: the newly-increased camera function of the ECM module in the data card chip software drives, drive and the synergy of ECM module by camera function, for the transmission of network data provides the plate wing passage.
8. data card internet access method as claimed in claim 5, it is characterized in that: when starting the camera function driver module, realization is docked with the ECM module, return or mail to the form that the data encapsulation of network side becomes camera equipment to discern from network side, and by this passage of camera device drives in PC and equipment room transmission.
9. data card internet access method as claimed in claim 6, it is characterized in that: described the middle layer software module sends to camera equipment to dialing request and other network requests interface function by PC side webcam driver, issue the webserver after these requests of camera device parses, obtain the network informations such as IP address and DNS, data clamp side is issuing camera equipment after these network information packings, camera equipment is passed to the middle layer software to these information by the webcam driver interface function, sets up dial-up connection.
10. data card internet access method as claimed in claim 5 is characterized in that: described system is the Windows system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010207600.7A CN101868050B (en) | 2010-06-22 | 2010-06-22 | Data card and network access method thereof |
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| CN201010207600.7A CN101868050B (en) | 2010-06-22 | 2010-06-22 | Data card and network access method thereof |
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| CN101868050A true CN101868050A (en) | 2010-10-20 |
| CN101868050B CN101868050B (en) | 2014-12-10 |
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| CN102123215A (en) * | 2011-03-21 | 2011-07-13 | 中兴通讯股份有限公司 | Voice transmission method, system and device |
| CN102156648A (en) * | 2011-01-30 | 2011-08-17 | 中兴通讯股份有限公司 | Wireless communication terminal starting method and device |
| CN102201953A (en) * | 2011-04-14 | 2011-09-28 | 中兴通讯股份有限公司 | Networking method and system |
| CN102869125A (en) * | 2012-08-21 | 2013-01-09 | 中兴通讯股份有限公司 | Data card and communication method and system thereof |
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| US20050268324A1 (en) * | 2004-05-04 | 2005-12-01 | Samsung Electronics Co., Ltd. | Network interface card for supporting multi-streaming format and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102096646A (en) * | 2011-01-30 | 2011-06-15 | 中兴通讯股份有限公司 | Method and device for starting wireless communication terminal |
| CN102156648A (en) * | 2011-01-30 | 2011-08-17 | 中兴通讯股份有限公司 | Wireless communication terminal starting method and device |
| CN102123215A (en) * | 2011-03-21 | 2011-07-13 | 中兴通讯股份有限公司 | Voice transmission method, system and device |
| CN102201953A (en) * | 2011-04-14 | 2011-09-28 | 中兴通讯股份有限公司 | Networking method and system |
| WO2012139450A1 (en) * | 2011-04-14 | 2012-10-18 | 中兴通讯股份有限公司 | Networking method and system |
| CN102869125A (en) * | 2012-08-21 | 2013-01-09 | 中兴通讯股份有限公司 | Data card and communication method and system thereof |
| WO2013178167A1 (en) * | 2012-08-21 | 2013-12-05 | 中兴通讯股份有限公司 | Data card and communication method and system therefor |
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| CN102869125B (en) * | 2012-08-21 | 2018-04-27 | 中兴通讯股份有限公司 | Data card and its communication means, system |
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|---|---|
| CN101868050B (en) | 2014-12-10 |
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