CN101868050B - Data card and network access method thereof - Google Patents
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- CN101868050B CN101868050B CN201010207600.7A CN201010207600A CN101868050B CN 101868050 B CN101868050 B CN 101868050B CN 201010207600 A CN201010207600 A CN 201010207600A CN 101868050 B CN101868050 B CN 101868050B
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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 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, 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 of usb data card wireless network access is good a kind of replacement scheme.Data card embeds notebook computer, not only can realize the market demands such as seamless broadband wireless online and video request program, the proprietary feature of the 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 the Large Volume Data such as audio frequency, video and browse;
(2) have advantages of that USB plug and play, transmission rate are high, can use network service convenient, fast, efficiently.
Generally speaking, utilize at present the mode of usb data card online to have two large classes: (1) by the software such as device drives and UI of usb data card is installed on PC, i.e. usb data card and PC communication need to be by self-defining device drives and application software; (2) oneself enumerating into system standard equipment, such as scsi device or HID equipment, the trouble driving with the self-defined USB of less installation, namely so-called free drive scheme.
But the place that current existing usb data card online scheme mainly has the following disadvantages and haves much room for improvement:
First, the mode of self-defined driving is installed for need: (1) set-up time is long, operation is more loaded down with trivial details.User, driving and the whole installations of UI software, needs the time of 3-5 minute at least, and on an other computer, when usage data card, also needs to reinstall driver and UI software as user, uses more loaded down with trivial details; (2) installation process is subject to some restrictions, likely causes installing unsuccessfully.Such as enterprise customer, computer authorizing may limit (not being administrator right) to some extent, may cause software to install, and data card cannot 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 user cannot use equipment.
Secondly, for driving without self-defined USB is installed, it is the mode of free drive, that equipment oneself is enumerated into HID equipment and (or) scsi device, although these drive systems all carry, but it is not also the fastest utilizing virtual this kind equipment out of USB in transfer of data, and dialer software is to be stored in the virtual CD of USB, need could move dialer software after optical disk start-up, like this can incur loss through delay user's use, and in view of the deficiency of CD mode in first kind of way above, this has also limited the further raising of online Experience Degree, so also there is at present the factor that affects user experience in free drive method, be mainly reflected in the time of connecting to network longer, and after connecting to network, speed is not very fast.
Summary of the invention
The object 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 device by PC operating system;
The network request that described ECM module issues PC side is processed and is encapsulated, and issues 3G network, meanwhile, is responsible for receiving the network packet returned of 3G network, by decapsulation and be handed down to camera unit module, passes to PC side by camera unit module;
Described usb bus module is responsible for the transmission of data.
Further, described data card has the middleware software being stored in its firmware, and this middleware software inserts after PC at described data card, is transferred to PC from described data card.
Further, the ECM module in described data card chip software, has a camera function and drives, by the synergy of camera function driving and ECM module, for the transmission of network data provides passage.
Further, described ECM module comprises ECM driven element module and ECM business submodule; Described ECM driven element module reads the data of described camera unit module, and on give ECM business submodule to mail to the encapsulation work of packet before network side, simultaneously, after ECM business submodule is received network return data bag and is carried out decapsulation, ECM driven element module is responsible for the data after unpacking to encapsulate according to the form of webcam driver, and issues 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 device; PC side system loads camera device and drives accordingly, the network request that described data card issues PC side is processed 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 camera unit module, pass to PC side by camera unit module.
Further, utilize the feature of usb protocol stack under PC side system, enumerated into the camera device stage at data card the middleware software being stored in data card equipment firmware is transferred to data card PC side from data card equipment side.
Further, the newly-increased camera function of ECM module in data card chip software drives, by the synergy of camera function driving and ECM module, for the transmission of network data provides plate wing passage.
Further, when starting camera function driver module, realize and the docking of ECM module, return to or mail to from network side the form that the data encapsulation of network side becomes camera device to identify, and drive this passage to transmit at PC and equipment room by camera device.
Further, described middleware software sends to camera device dialing request and other network request by the interface function of PC side webcam driver, camera device is issued the webserver after resolving these requests, obtain the network informations such as IP address and DNS, data clamp side is issuing camera device after these network information packings, camera device is crossed webcam driver interface function these information exchanges and is passed to middleware software, sets up dial-up connection.
Further, described system is 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 Warrant Bounds problem that 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.
Brief description of the drawings
Fig. 1 is the composition module map of usb data card PC side and data card equipment side in the present invention;
Fig. 2 is the schematic diagram of realizing of embodiment of the present invention data card online;
Fig. 3 is the flow chart of embodiment of the present invention data card online;
Fig. 4 is embodiment of the present invention data card and PC side data interaction flow schematic diagram;
Fig. 5 is the data interaction schematic flow sheet of embodiment of the present invention PC side to data card equipment side;
Fig. 6 is the schematic flow sheet that utilizes MOD mechanism transmission middleware software in the embodiment of the present invention.
Embodiment
The present invention utilizes the feature of usb protocol stack under Windows, propose one and neither need to install self-defined USB device driving, can further improve again the using method of speed of surfing the Internet and user experience, utilize many defects and the problem of data card online to solve existing Windows user.
The present invention is a kind of major tuneup and the lifting to using usb data card network access under current Windows.This improvement is the result that makes full use of Windows system own characteristic, has also made corresponding amendment and perfect simultaneously on the framework of equipment side.
Data card of the present invention is plugged after PC, data card is enumerated into camera device, because the driver of camera device is that Windows is subsidiary voluntarily, so system can load corresponding driving very soon, utilize the feature of usb protocol stack under Windows simultaneously, in USB enumeration stage, the middleware software being stored in data card equipment firmware (is realized to dial feature and network data forwarding capability, certainly, this middleware software can be also that PC side has itself) be transferred to data card PC side from data card equipment side, for data card equipment side, the present invention is by (the Ethernet Control Model of the ethernet control module in data card chip software, ECM), a newly-increased camera function drives, by the synergy of camera function driving and ECM module, for the transmission of network data provides plate wing passage.Windows user can realize the object of only utilizing system browser just can enjoy fast network access like this, and the lifting of this speed comprises two aspects: (1) plugs data and snap into the reduction of the time of successfully connecting to network from user; (2) raising of uploading downloading rate after networking.
The method of utilizing usb data card to surf the Net for Windows user of the present invention mainly comprises the following steps:
The first step: start camera function driver module, and the docking of realization and ECM module.Because the present invention only need to enumerate into data card a single camera equipment, and camera device is realized according to USB video equipment class specification, return to or mail to from network side the form that the data encapsulation of network side becomes camera device to identify, and drive this passage in PC and equipment room transmission by camera device, greatly improve the transmission rate of network.
Second step: the transmission of middleware software operation.This middleware software is the mutual bridge of equipment side (being data card side) camera device and browser.Downwards, it can send to camera device by the interface function of PC side webcam driver dialing request and other network request, and camera device is issued the webserver after resolving these requests, obtains the network informations such as IP address and DNS.Upwards, data clamp side is issuing camera device after these network information packings, and camera device is crossed webcam driver interface function these information exchanges and passed to middleware software, sets up dial-up connection.
The 3rd step: realize middleware software in the storage of equipment side and report according to MOD (MS OS DESCRIPTOR) mechanism.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 OS feature descriptor in equipment firmware, controls these device descriptors of acquisition request and support the Windows of MOD and the version of window application to utilize in the situation that not needing user interactions.In this step, we will be according to Microsoft the specification to MOD and flow process, middleware software is stored in equipment firmware, and plugs the USB enumeration stage after PC at equipment, utilize MOD mechanism to realize middleware software and report PC side from equipment side.
The 4th step: after device ready, be camera device by system identification and see in PC side after the middleware software reporting, start successively middleware software and browser, start various online application.Now, the online request that 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 successively ECM module, webcam driver passage and middleware software and flow to browser, thereby realize online overall process.
Feature of the present invention is: one, MOD mechanism can make dialer software be obtained by Windows in USB enumeration stage, thereby utilize the feature that USB transmission rate is high, make user from plugging data card, shorter to the mode before during this period of time of seeing dialer software and operation on Windows, thus the rising that brings user experience.Two, USB device is directly enumerated as camera device, and PC side drive need not be installed, and utilizes the characteristic of USB camera device specification and the feature of ECM module, can improve the transmission rate of data.Three, the browser software or the chat tool (IE, MSN) that directly use operating system itself to carry, need not just can easily realize the function 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 in the present invention.
As shown in Figure 1, PC side includes browser module, middleware software, webcam driver module and usb bus interface module.The effect of webcam driver module has two: the various data that (1) issues application program send to equipment side; (2) be also responsible for receiving the data that send over from equipment side simultaneously, and give the application software of PC side, as the middleware software in the present embodiment.So webcam driver module can be regarded as to " highway " that connect PC side and equipment side.And middleware software role and webcam driver module class are seemingly, the driver module (as the webcam driver here) of PC side upper application software that what only its connected is (as the browser here etc.) and lower floor, particularly, be that the diverse network request that browser is initiated encapsulates and processes, be transmitted to webcam driver module; Read the network data of PC side webcam driver module simultaneously, and hand to browser.Usb bus module couples together host computer side and equipment side.
Equipment side (data card side) in the present embodiment mainly comprises camera unit module, ECM module and usb bus interface module.Camera unit module makes equipment be identified as a camera device by PC operating system, system just can load the webcam driver carrying 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, expand velocity of liquid assets and the capacity of network data on this passage, promoted carrying capacity and the efficiency of this " highway ".ECM module ACM module (as Modem passage) more in the past, in transmission rate, there is good performance, specifically, its effect is that the network request that PC side is issued is processed and encapsulated, and issue 3G network, meanwhile, be responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to camera unit module, give PC side by camera unit module.
Please refer to shown in Fig. 2, is the schematic diagram of realizing of the 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 compared with the occupation mode of data with existing card (comprise needs are installed drive and free drive).
In the present invention, between usb bus interface in the past and ECM module, increase camera unit module, originally driven to receive and dispatch through camera function now by the network data of ECM module transfer.Do like this for following two considerations: (1) equipment must be enumerated as system standard equipment, can drive without user installation like this; (2) larger than the data transmission capabilities in existing free drive scheme, based on above factor, utilize camera unit module device enumeration for camera device be optimal scheme, all data mutual between PC side and network are all responsible for forwarding by camera unit module.ECM module in Fig. 2 is specifically divided into ECM driven element module and ECM business submodule.ECM driven element module is responsible for reading the data of camera unit module, and on give ECM business submodule to mail to the work such as the encapsulation of packet before network side, simultaneously, after ECM business submodule is received network return data bag and is carried out decapsulation, ECM driven element module can be responsible for again the data after unpacking to encapsulate according to the form of webcam driver, and issues PC side by this data channel of webcam driver.Here also has a middleware software, although this module is the Flash district in the equipment of being stored in, but its effect is in PC side, and be to pass to PC side by the MOD mechanism in the present invention in USB enumeration stage, the effect that this module is concrete is the bridge joint that carries out network dial and network data, receive and dispatch the data flow between the application software such as browser and webcam driver, so its status is extremely important.
Please refer to shown in Fig. 3, it is the flow chart of the present embodiment data card online, comprises the steps:
S301:PC side detects whether plug data card equipment, if detect and plug data card, enters step S302, does not plug data card as detected, and finishes;
S302:USB enumerates;
USB interface is enumerated described data card.
S303: judge whether middleware software uploads to PC, if uploaded to PC, enter step S304, if do not upload to PC, process ends;
Middleware software can upload to PC side from equipment side by usb protocol stack, and understands controlled appear at (such as at desktop) in Windows system.
S304: judge whether data card equipment to enumerate into camera device, if so, enter step S305, if not, process ends;
S305: operation middleware software;
S306: running browser online.
After finding this executable program of described middleware software operation, user just can open any browser start to enjoy various online application.
In said process, middleware software is exposed to PC side by the transmittability of utilizing high speed USB, instead of existing CD mode, and camera device is more suitable for carrying out jumbo transfer of data compared with HID equipment, thus the comprehensive rising that brings user experience.
Please refer to shown in Fig. 4, is the present embodiment data card and PC side data interaction flow schematic diagram, comprises the following steps:
S401: judge whether data card receives network return data, if received, enter step S402, if do not received, cycle criterion;
S402:ECM module is carried out reception and the processing of network data;
S403: data are passed through webcam driver passage from data card equipment effluent to PC side;
S404: middleware software receives data from PC side webcam driver, and it is resolved, and enter step S405 or S406;
S405: carry out dial-up connection;
S406: browser is processed network data.
From said process, first the network packet of coming from network side is received and is processed by ECM module, repack with the discernible form of webcam driver, camera passage by data card equipment side and PC side flows to PC side, and read by running middleware software, and then by corresponding analysis processing, or the work of setting up of dialling, or data are reported to the upper level applications such as browser.
Please refer to shown in Fig. 5, is the data interaction schematic flow sheet of the present embodiment PC side to data card equipment side, comprises the steps:
S501: whether move middleware software and carry out dial-up connection, if so, enter step S502, if not, enter step S503;
S502: operation middleware software is to dial;
S503: browser is initiated network request;
S504: request is transmitted to webcam driver by middleware software;
S505: judge whether to exist camera device, if existed, enter step S506, if there is no, process ends;
S506:PC side webcam driver receives data and described data is delivered to plate side webcam driver;
S507:ECM module reads the data of slave plate side webcam driver outflow and processes;
S508: whether the network request that judgement is received is correct, if correct, enters step S509, if incorrect, process ends;
S509: please described request send to network side.
From above-mentioned flow process, in the time that middleware software moves, webcam driver can be received corresponding data, be transmitted to the camera unit module of equipment side through USB passage, then receive and process by the ECM module on upper strata, finally this dialing request will be issued to network side, then network can be given our network information such as data card equipment distributing IP and DNS, like this in the time that the 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 complete 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 middleware software in the present embodiment, comprises the steps:
S601: start USB and enumerate;
S602:PC obtains device descriptor;
S603: whether judgment device supports MOD, if supported, enters step S604, if do not supported, and process ends;
S604:PC obtains MOD by standard USB request;
S605: judge whether middleware software file is stored in correct position, if so, enter step S606, if not, process ends;
S606:PC obtains middleware software software by self-defined USB request;
S607: start middleware software transmission;
S608: judge whether all end of transmission of middleware software, if so, process ends, if not, proceed to step S607 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 word string descriptor report string number etc. simple information, in fact according to the feature of Windows usb protocol stack, what it can support to reach 16M byte-sized reports content (certainly also relevant with Flash size in our equipment), and the content reporting can be supported most of form, we have utilized this USB mechanism just, moving PC side from equipment side with the middleware software of forwarding capability for dialling when USB enumerates in the present invention, play in the past by the same function of CD mode, but more faster than CD, more efficient.According to the flow chart of enumerating of figure six, middleware software is placed on to relevant position in equipment, and by relative set, equipment is supported after MOD mechanism, in enumeration stage, first PC can utilize the USB request of standard to obtain Microsoft OS Descriptor, after successfully obtaining this descriptor, PC can utilize again self-defining USB request further to ask to be stored in the middleware software content of equipment side ad-hoc location, each data of supporting to upload 64K size, according to the actual size of middleware software, finally by repeatedly transmitting, just can successfully middleware software be all put into the ad-hoc location of PC side.
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 according to the present invention various corresponding changes or variation; in every case any amendment of doing within the spirit and principles in the present invention, be equal to replacements, improvement, within protection scope of the present invention all should be included in.
Claims (6)
1. a data card, it comprises camera unit module, ECM module, middleware software and usb bus interface module, wherein:
Described camera unit module makes described data card be identified as a camera device by PC operating system;
Described middleware software is stored in the firmware of described data card, this middleware software is plugged the USB enumeration stage after PC at equipment, utilize MOD mechanism to realize middleware software and report PC side from equipment side, the camera function that the upper application software in described middleware software connection PC and PC operating system carry drives;
The network request that described ECM module issues PC side is processed and is encapsulated, and issues 3G network, meanwhile, is responsible for receiving the network packet returned of 3G network, by decapsulation and be handed down to camera unit module;
Described usb bus module is responsible for the transmission of data;
The upper application software of PC side issues network request to middleware software, described middleware software transfers to described camera function by network request and drives, described camera function drives and then network request is sent to described camera unit module, described camera unit module is forwarded to described ECM module again, described ECM module is processed and is encapsulated network request, and issues 3G network; Described ECM module is responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to camera unit module, the camera function that is passed to PC side by camera unit module drives, described camera function drive so that by data packet transmission to middleware software, described middleware software is handed to the upper application software of PC side again.
2. data card as claimed in claim 1, is characterized in that: described ECM module comprises ECM driven element module and ECM business submodule; Described ECM driven element module reads the data of described camera unit module, and on give ECM business submodule to mail to the encapsulation work of packet before network side, simultaneously, after ECM business submodule is received network return data bag and is carried out decapsulation, ECM driven element module is responsible for the data after unpacking to encapsulate according to the form of webcam driver, and issues PC side by this data channel of webcam driver.
3. a data card internet access method, comprising: data card is enumerated into camera device; PC side system loads camera device and drives accordingly; Utilize the feature of usb protocol stack under PC side system, plug the USB enumeration stage after PC at data card, utilize MOD mechanism to realize middleware software and report PC side from equipment side;
The upper application software of PC side issues the middleware software of network request to PC side, the camera function that network request is transferred to PC side by described middleware software drives, described camera function drives and then network request is sent to the camera unit module of data card side, described camera unit module is forwarded to the ECM module of data card side again, described ECM module is processed and is encapsulated network request, and issues 3G network; Described ECM module is responsible for receiving the network packet that 3G network returns, by decapsulation and be handed down to described camera unit module, passing to described camera function by described camera unit module drives, described camera function drives and then by extremely described middleware software of data packet transmission, described middleware software is handed to described upper application software again.
4. data card internet access method as claimed in claim 3, it is characterized in that: when starting the camera function driver module of PC side, realization is docked with ECM module, return to or mail to from network side the form that the data encapsulation of network side becomes camera device to identify, and drive this passage in PC and equipment room transmission by camera device.
5. data card internet access method as claimed in claim 3, it is characterized in that: described middleware software sends to camera device dialing request and other network request by the interface function of PC side webcam driver, camera device is issued the webserver after resolving these requests, obtain the network information, data clamp side is issuing camera device after these network information packings, camera device is crossed webcam driver interface function these information exchanges and is passed to middleware software, sets up dial-up connection.
6. data card internet access method as claimed in claim 3, is characterized in that: described system is Windows system.
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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 |
| 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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| CN201393219Y (en) * | 2009-02-20 | 2010-01-27 | 浩海江 | Wireless internet access card |
| CN101655823A (en) * | 2009-06-12 | 2010-02-24 | 中兴通讯股份有限公司 | Realizing method, operating method and system free of installing data card drive |
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| KR100631758B1 (en) * | 2004-05-04 | 2006-10-09 | 삼성전자주식회사 | Network I / F card supporting multi streaming format and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201393219Y (en) * | 2009-02-20 | 2010-01-27 | 浩海江 | Wireless internet access card |
| CN101655823A (en) * | 2009-06-12 | 2010-02-24 | 中兴通讯股份有限公司 | Realizing method, operating method and system free of installing data card drive |
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