CN1889491A - Wireless network, accessing card and wireless data transmitting method - Google Patents
Wireless network, accessing card and wireless data transmitting method Download PDFInfo
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- CN1889491A CN1889491A CN 200610098898 CN200610098898A CN1889491A CN 1889491 A CN1889491 A CN 1889491A CN 200610098898 CN200610098898 CN 200610098898 CN 200610098898 A CN200610098898 A CN 200610098898A CN 1889491 A CN1889491 A CN 1889491A
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Abstract
A radio on-line card of network sets cable adapter between host and radio on-line unit of network in order to realize radio connection between host and radio on-line card of network by utilizing radio technique of converting cable data signal and radio data signal to each other. The method for realizing radio on-line of network is also disclosed.
Description
Technical field
The present invention relates to the wireless Internet access technology, relate in particular to the method for a kind of wireless Internet card and wireless data transmission.
Background technology
Along with notebook computer day by day popularize and with people's inseparable internet, applications of living, the demand of mobile office, mobile Internet access is increase thereupon also, this demand has been complied with in the appearance of this new portable terminal product of wireless Internet card just.Present wireless Internet card is connected roughly with the data of computer to be realized by three kinds of interfaces, be personal computer memory card international association (PCMCIA, Personal ComputerMemory Card International Association) interface: use the wireless Internet card of this interface generally to supply mobile device special uses such as notebook; Compact flash (CF, Compact Flash) interface: use the wireless Internet card of this interface to be mainly used in personal digital assistant equipment such as (PDA, Personal DigitalAssistant); USB (USB, Universal Serial Bus) interface: use the wireless Internet card of this interface to can be applicable to such as on the main frames such as notebook computer, desktop computer.Therefore, for those users that need between desktop computer and notebook computer, frequently move, the wireless Internet card of USB interface will be first-selected, in addition, because the USB interface transmission rate is far longer than traditional parallel port and serial port, equipment is installed simple and is supported hot plug, therefore also more and more is subjected to liking of manufacturer and user.But three kinds of above-mentioned interfaces all utilize data patchcord and main frame to communicate, and all are subjected to the constraint of cable.Even if the wireless Internet card of the USB interface of plurality of advantages is arranged, this also is a shortcoming undoubtedly, and when needs moved the notebook computer of surfing the Net, the computer that is connecting a lot of equipment by cable was carried very inconvenient naturally.
Summary of the invention
In view of this, one aspect of the present invention provides a kind of wireless Internet card, and this card of surfing Internet can be realized the wireless connections with main frame.
The present invention provides a kind of method of utilizing wireless Internet card to carry out wireless data transmission on the other hand, and this method can realize the radio communication of wireless Internet card and main frame.
Wireless Internet card provided by the invention is achieved by following technical solution:
A kind of wireless Internet card, this wireless Internet card comprises: main frame cable adapter and wireless Internet access unit.
Wherein, main frame cable adapter, be used to receive the cable data signal of main frame, with the cable data conversion of signals that receives is wireless data signal, give the wireless Internet access unit by antenna transmission, and, the wireless data signal that receives is converted to the cable data signal by the wireless data signal of antenna reception from the wireless Internet access unit, send to main frame.
The wireless Internet access unit, be used for by the wireless data signal of antenna reception from described main frame cable adapter, the wireless data signal that receives is transmitted to network, and receives the wireless data signal of automatic network, be transmitted to described main frame cable adapter by antenna.
Above-mentioned wireless Internet access unit comprises: equipment cable adaptation module, interface module and network communication module.
Wherein, equipment cable adaptation module, be used for receiving the wireless data signal that main frame cable adapter sends by antenna, send to interface module after the wireless data signal that receives is converted to the cable data signal, and the cable data signal of receiving interface module, with the cable data conversion of signals that receives is wireless data signal, issues main frame cable adapter by antenna.
Interface module is used to receive the signal of described equipment cable adaptation module, sends to the network communication module, and receives the signal of network communication module, sends to equipment cable adaptation module.
The network communication module is used to receive the wireless data signal of automatic network, sends to interface module after being converted to the cable data signal, and receives the cable data signal from described interface module, sends to network after being converted to wireless data signal.
Wherein, described interface module is: the interface module that includes the general-purpose serial bus USB controller.
Described network communication module in the above-mentioned wireless Internet card comprises: radio receiving transmitting module, string and interface modular converter and central processing module.
Wherein, radio receiving transmitting module is used for receiving by antenna the signal of automatic network, sends to central processing module, and receives the signal of central processing module, sends to network.
Central processing module, be used to receive signal from radio receiving transmitting module, give string and interface modular converter with this data-signal by direct memory DMA channel transfer, perhaps through sending string and interface modular converter behind the buffer memory to, receive the data that string and interface modular converter send, send to radio receiving transmitting module, and mutual by holding wire and described interface module, carry out synchronous initiation.
String and interface modular converter, be used to receive the parallel data that central processing module sends, send to interface module after described parallel data is converted to serial data, and the serial data that sends of receiving interface module, send to central processing module after described serial data is converted to parallel data.
Preferably, described network communication module further comprises: the SIM/UIM card module is used for storing subscriber information, and provides institute's stored user information for radio receiving transmitting module.
Preferably, described network communication module further comprises: the interface module of external extension storage card, be used for linking to each other with central processing module, and memory card interface is provided.
Wherein, described equipment cable adaptation module can be integrated in the described interface module.
Wherein, described wireless Internet access unit may further include: power management control module and battery.Wherein, the power management control module, be used for determining the operating voltage of equipment cable adaptation module, interface module and network communication module,, the electric energy in the battery offered described equipment cable adaptation module, interface module and network communication module according to determined operating voltage.Battery is used to the power management control module that electric energy is provided.
And, described wireless Internet access unit may further include: power-supply battery charging module and power supply adaptor, wherein, power supply adaptor, be used to carry out the adaptive of described power-supply battery charging module and external power source, by power-supply battery charging module, interface module and power management control module, give described battery with the power delivery of external power source.
The power-supply battery charging module is used for cooperating with power supply adaptor, by interface module and power management control module, gives battery with the power delivery of external power source, and shows the state of battery according to the battery charge amount.
Preferably, described wireless Internet access unit further comprises: hub module be used for transmitting data-signal between described interface module and network communication module, and the electric weight that the power-supply battery charging module is transported flows to interface module.
The method of utilizing wireless Internet card to carry out wireless data transmission provided by the invention is achieved by following technical solution:
A kind of method of utilizing wireless Internet card to carry out wireless data transmission, this method comprises:
A, main frame cable adapter in the wireless Internet card receives the cable data signal that main frame sends, after this conversion of signals is wireless data signal, give wireless Internet access unit in this wireless Internet card by antenna transmission, the wireless Internet access unit is transmitted to network with the wireless data signal that receives, and after described wireless Internet access unit receives the wireless data signal of network-feedback, by antenna the wireless data signal that receives is transmitted to described main frame cable adapter, main frame cable adapter sends to main frame after the wireless data signal that receives is converted to the cable data signal.
Wherein, described wireless Internet access unit comprises equipment cable adaptation module, and interface module and network communication module describedly are transmitted to network with the wireless data signal that receives and are:
The wireless data signal that equipment cable adaptation module will come from main frame cable adapter is converted to the cable data signal, send to network communication module in this wireless Internet access unit by interface module, the cable data signal that network communication module basis receives is determined the destination address in the network, and be wireless data signal with this cable data conversion of signals, send to network.
Described wireless Internet access unit is transmitted to described main frame cable adapter with the wireless data signal that receives:
The wireless data signal that the network communication module will come from network is converted to the cable data signal, send to equipment cable adaptation module by interface module, equipment cable adaptation module is that wireless data signal is given described main frame cable adapter by antenna transmission with the cable data conversion of signals that is received.
Wherein, before the described steps A, further comprise: the initialization card of surfing Internet, and finish authentication with main frame.
And described initialization card of surfing Internet is also finished authentication with main frame and is comprised:
A01, wireless Internet card power on and initialization, and main frame and wireless Internet card carry out oneself's identification respectively;
A02, wireless Internet card judge whether to have a pair of connection identifier sign indicating number that is complementary with main frame, if exist then execution in step A03; Otherwise return execution in step A02;
A03, main frame and wireless Internet card generate session key, finish Certificate Authority.
Wherein, before the described steps A, further comprise: wireless Internet card reads the fine setting degree management control command MMC that main frame sends;
Judge according to MMC whether described wireless Internet card is in the main frame affairs and arranges the progress stage, if then carry out described steps A, otherwise wireless Internet card sends solicited message to main frame, enters power save mode.
Wherein, described wireless Internet card to main frame transmission solicited message is: wireless Internet card sends sleep request or interrupts connection request to main frame.
The wireless Internet card that provides among the present invention and utilize wireless Internet card to carry out the method for wireless data transmission, by main frame cable adapter and equipment cable adaptation module are set between main frame and wireless Internet card, or equipment cable adaptation module and interface module integrated, utilize wireless technology that cable data signal and wireless data signal are changed mutually, realized the wireless connections of main frame and card of surfing Internet.Owing to do not have the constraint of cable, thereby improved the convenience that moves.
In addition, owing to need not to use cable to be connected between wireless Internet card and the main frame, so the distance between wireless Internet card and the main frame need not to be subjected to the restriction of line length again, in the radio communication allowed band, and random mobile host.
At last, owing to need not to communicate, thereby the problems such as communication failure that cause because of the damage of cable or loose contact have been avoided by cable.
Description of drawings
Fig. 1 is the structural representation of wireless Internet card in the embodiment of the invention one.
Fig. 2 is the internal structure schematic diagram in the present invention's middle network communication module embodiment illustrated in fig. 1.
Fig. 3 is the structural representation of wireless Internet card in the embodiment of the invention two.
Fig. 4 is the structural representation of wireless Internet card in the embodiment of the invention three.
Fig. 5 is the structural representation of wireless Internet card in the embodiment of the invention four.
Fig. 6 is the structural representation of wireless Internet card in the embodiment of the invention five.
Fig. 7 utilizes wireless Internet card to carry out the exemplary process diagram of the method for wireless data transmission in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail below in conjunction with embodiment.
Be that example is done an introduction in detail to the wireless Internet card among the present invention with interface module and the UWB wireless technology that includes the USB controller below.
Embodiment one:
Fig. 1 is the structural representation of wireless Internet card in the embodiment of the invention one.This wireless Internet card is based on the UWB technology, and the wireless data that is implemented between main frame and the wireless Internet card transmits.UWB technology wherein, it is the state-of-the-art wireless communication technology of the above bandwidth of a kind of 1GHZ of use, different with conventional communication techniques is, UWB is a kind of carrierfree communication technology, be that it does not adopt carrier wave, but utilize the non-sinusoidal waveform burst pulse transmission data of nanosecond to the picosecond level, so its shared spectral range is very wide, is applicable at a high speed, in-plant wireless personal communications.
Referring to Fig. 1, the wireless Internet card among this embodiment comprises: main frame cable adapter 110 and wireless Internet access unit 100.
Wherein, main frame cable adapter 110, be used to receive the cable data signal of main frame, with the cable data conversion of signals that receives is wireless data signal, give wireless Internet access unit 100 by antenna transmission, and, the wireless data signal that receives is converted to the cable data signal by the wireless data signal of antenna reception from wireless Internet access unit 100, send to main frame;
Wireless Internet access unit 100, be used for by the wireless data signal of antenna reception from described main frame cable adapter 110, the wireless data signal that receives is transmitted to network, and receives the wireless data signal of automatic network, be transmitted to described main frame cable adapter 110 by antenna.
The unit 100 of wherein getting online without being tethered to a cable comprises: equipment cable adaptation module 101, interface module 102, include the USB controller in this module, usb hub module 103, network communication module 104, power management control module 105, battery 106, power-supply battery charging module 107 and external power adapter 108.
Main frame cable adapter 110 and equipment cable adaptation module 101 and interface module 102, be used for after finishing authentication between main frame and the wireless Internet card, at first receive the fine setting degree supervisory instruction (MMC) of main frame by main frame cable adapter 110, by equipment cable adaptation module 101 and interface module 102 this MMC instruction is transferred to network communication module 104 again, then under the control of network communication module 104, in the corresponding time, finish radio communication between main frame and the card of surfing Internet together according to the MMC instruction of main frame.Wherein comprise host clock information in the MMC instruction, the time started of next MMC, channel time distributes (CTA) and wireless channel management information.Each distributes and comprises the scheduling that equipment and main frame communicate time.
Wherein, main frame cable adapter 110, be used to receive the USB cable data signal that main frame sends, utilize the physical layer protocol of UWB and the application layer protocol of USB, with this conversion of signals is the UWB wireless data signal, gives equipment cable adaptation module 101 by the antenna transmission of self, and the UWB wireless data signal that sends by this antenna receiving apparatus cable adaptation module 101, utilizing the physical layer protocol of UWB and the application layer protocol of USB, is that USB cable data signal sends main frame to this conversion of signals.Separate with card of surfing Internet during use, be connected on the USB interface of main frame, the time spent is not stuck on the card of surfing Internet.
Equipment cable adaptation module 101, be used for receiving the UWB wireless data signal that main frame cable adapter 110 sends by the antenna of self, utilize the physical layer protocol of UWB this conversion of signals to be become USB cable data signal with the application layer protocol of USB, send to interface module 102, and the USB cable data signal of receiving interface module 102, utilize the physical layer protocol of UWB and the application layer protocol of USB to give main frame cable adapter 110 for the UWB wireless data signal by the antenna transmission of self with this conversion of signals.
Power management control module 105, by power line and data/control time division multiplexing line respectively with equipment cable adaptation module 101, interface module 102, and link to each other with network communication module 104 with usb hub module 103 by interface module 102, power management control module 105 is used for the instruction according to the transmission of data/control time division multiplexing line, by power line a certain amount of electric energy in the battery 106 is offered each module according to the size of the operating voltage of above-mentioned each module that links to each other with power management control module 105.
Power-supply battery charging module 107, be used for by the power line of usb hub module 103, interface module 102 and power management control module 105 is battery 106 chargings of wireless Internet card, and show the state of battery according to the charge volume of battery 106, show during as battery 106 electric weight underfills and charge, show when battery 106 electric weight are full of to be full of.
Wherein, the internal structure of network communication module 104 comprises radio receiving transmitting module as shown in Figure 2, string and interface modular converter, central processing module and SIM/UIM card module.
Wherein, radio receiving transmitting module, the integrated radio transmission-receiving function of CDMA/GPRS, be used for carrying out information interaction with the CDMA/GPRS network, receive the network wireless data-signal of CDMA/GPRS, it is carried out being converted to the cable data signal behind the demodulating and decoding send to central processing module, and the cable data signal that will be received from central processing module carries out being converted to the network wireless data-signal after the coded modulation and sends to the CDMA/GPRS network.
Central processing module, be used to receive the signal that radio receiving transmitting module sends over, send this data-signal to string and interface modular converter after by central processing module internal storage buffer memory, perhaps directly pass through by the pre-configured direct memory (DMA of central processing module, Direct Memory Access) passage sends data to string and interface modular converter, and the parallel data that reception is gone here and there and interface modular converter sends, send to radio receiving transmitting module; When the wireless Internet access that central processing module also is used for present embodiment is stuck in initialization, carry out synchronous initiation, comprise and set up communication line and configuration register and various communication patterns etc. by holding wire and through usb hub module 103 and interface module 102.And, central processing module also is used for receiving by equipment cable adaptation module 101 and main frame cable adapter 110 according to the MMC commands for controlling interface module 102 of main frame the data of main frame, or sending data to main frame, the data of finishing between wireless Internet card and the main frame transmit.Central processing module in the present embodiment can be made of dsp chip or ARM chip.
String and interface modular converter, be used to receive the parallel data that central processing module sends, parallel data is converted to serial data, send to interface module 102 by data wire and through usb hub module 103, and the serial data that sends over by usb hub module 103 of receiving interface module 102, serial data is converted to parallel data, sends to central processing module.
The SIM/UIM card module is used for storing subscriber information, for radio receiving transmitting module provides institute's stored user information, is used for connecting with the CDMA/GPRS network, assists to authenticate, authentication and charging.
In the practical application, can not use usb hub module 103 to carry out the interface expansion, interface module 102 directly links to each other with network communication module 104 by holding wire, data wire and power line, and links to each other with power-supply battery charging module 107 by power line.
In addition, power-supply battery charging module 107 directly can also be linked to each other with battery 106, during charging, the electric energy of the external power source that power-supply battery charging module 107 directly will transmit by power supply adaptor 108 charges in the battery 106, and need not to use usb hub module 103, interface module 102 directly links to each other with network communication module 104 by holding wire, data wire and power line.
Embodiment two:
Referring to Fig. 3, Fig. 3 is the structural representation of wireless Internet card in the invention process two.As shown in Figure 3, comprise interface module 302 in the wireless Internet card among this embodiment, this module is integrated in inside with equipment cable adaptation module 101 and the interface module 102 in embodiment illustrated in fig. 1, and main frame cable adapter 301 is complementary with this interface module 302, and is identical among the function of other module and annexation and embodiment illustrated in fig. 1 one.
Wherein, main frame cable adapter 301, be used for and interface module 302 is finished radio communication between main frame and the card of surfing Internet together, receive the USB cable data signal that main frame sends, with this conversion of signals is the UWB wireless data signal, give interface module 302 by antenna transmission, and the UWB wireless data signal that sends by antenna receiving interface module 302, and be that USB cable data signal sends main frame to this conversion of signals.Separate with wireless Internet card during use, be connected on the USB interface of main frame, the time spent is not stuck on the wireless Internet card.
Embodiment three:
Referring to Fig. 4, Fig. 4 is the structural representation of wireless Internet card in the embodiment of the invention three.As shown in Figure 4, comprise interface module 401 in the wireless Internet card among this embodiment, this module is integrated in inside with power-supply battery charging module 107 and the interface module 102 in embodiment illustrated in fig. 1, and need not to be provided with usb hub module 103, network communication module 104 directly links to each other with interface module 401; Power supply adaptor 108 also links to each other with this interface module 401, and is identical among the function of other module and annexation and embodiment illustrated in fig. 1 one.
In the present embodiment, power supply adaptor 108, be used to connect external power source and interface module 401, power line by interface module 401 and power management control module 105 fills into the external power source electric energy in the battery 106 in the wireless Internet card, finishes the charging into the battery in the wireless Internet card 106.
Embodiment four:
Referring to Fig. 5, Fig. 5 is the structural representation of wireless Internet card in the embodiment of the invention four.As shown in Figure 5, comprise interface module 501 in the wireless Internet card among this embodiment, this module is integrated in inside with power-supply battery charging module 107 and the interface module 302 in embodiment illustrated in fig. 3 two, and need not to be provided with usb hub module 103, network communication module 104 directly links to each other with interface module 501; The power supply adaptor 108 also interface by interface module 501 links to each other with this interface module 501, and is identical among the function of other module and annexation and embodiment illustrated in fig. 3 two.
Wherein, power supply adaptor 108, be used to connect external power source and interface module 501, the power line of external power source electric energy by interface module 501 and power management control module 105 filled in the battery 106 in the wireless Internet card, finish charging into the battery in the wireless Internet card 106.
Embodiment five:
Referring to Fig. 6, Fig. 6 is the structural representation of wireless Internet card in the embodiment of the invention five.As shown in Figure 6, comprise outside charger 601 in the wireless Internet card among this embodiment, this charger 601 is integrated in inside with power-supply battery charging module in embodiment illustrated in fig. 1 one 107 and power supply adaptor 108, and need not to be provided with usb hub module 103, network communication module 104 directly links to each other with interface module 102.Wherein the battery in the wireless Internet card 106 can take out externally and charge in the charger 601.Identical among the function of other module and annexation and embodiment illustrated in fig. 1 one.
Wherein, interface module 102 is used for the signal of receiving equipment cable adaptation module 101, sends to network communication module 104, and receives the signal of network communication module 104, sends to equipment cable adaptation module.
Wireless Internet card in the foregoing description one to embodiment four all can dispose an external charger 601 again according to the mode shown in the embodiment five.Battery 106 in the wireless Internet card both can directly charge in wireless Internet card, also can take out separately and charge; Battery wherein can be lithium ion battery, also can be nickel-cadmium cell, Ni-MH battery, perhaps is other rechargeable battery.
Wireless Internet card in the various embodiments described above in network communication module 104, all can be provided with the interface module of an external extension storage card, is used to provide the interface of external memory card, and this extension storage card can be arranged in the central processing module 203; In addition, network communication module 104 can also be the integrated module of other network transmission-receiving functions, as integrated TD-SCDMA network or WCDMA network etc.
In the wireless Internet card in the various embodiments described above, battery can also be storage battery, and need not be provided with power-supply battery charging module and power supply adaptor module in the card of surfing Internet this moment, and when accumulator electric-quantity was not enough, the storage battery that more renews got final product.
Be that example is done the method for utilizing wireless Internet card to carry out wireless data transmission among the present invention and described in further detail still below with the interface module that includes the USB controller and UWB wireless technology.
Among the embodiment of this method, main frame cable adapter in the wireless Internet card receives the cable data signal that main frame sends, after this conversion of signals is wireless data signal, give wireless Internet access unit in this wireless Internet card by antenna transmission, the wireless Internet access unit is transmitted to network with the wireless data signal that receives, and after described wireless Internet access unit receives the wireless data signal of network-feedback, by antenna the wireless data signal that receives is transmitted to described main frame cable adapter, main frame cable adapter sends to main frame after the wireless data signal that receives is converted to the cable data signal.
Fig. 7 utilizes wireless Internet card to carry out the exemplary process diagram of the method for wireless data transmission in the embodiment of the invention.Referring to Fig. 7, this wireless Internet card is that (DN, DEVICENOTIFICATION) mode of package is notified relevant host event to employing aerial device notice, comprising: connect DN, cut off host event such as DN and remote activation DN.Idiographic flow is as follows:
In this step, during initialization, the central processing module of wireless Internet card will be set up the communication line with interface module, and disposes each autocorrelative register and communication pattern etc., and wireless Internet card also will be set up authentication and the authentication with network in addition.
In this step, main frame is connected main frame identifier (CHID by 128 respectively with wireless Internet card, Connect Host Identify Device) with 128 connection device identifier (CDID, Connect DeviceIdentify Device) carries out oneself's identification, this moment main frame can to produce the connection identifier CHID-CDID of unique a pair of main frame and wireless Internet card right, the authentication of this CHID-CDID when being used for carrying out transfer of data between main frame and the card of surfing Internet.
Step 704, main frame and wireless Internet card generate session key and finish Certificate Authority.
In this step, when connecting for the first time, in main frame and the card of surfing Internet utilization band with outband channel with 128 to be connected cipher key delivery CHID-CDID right, main frame will use with equipment and be connected key afterwards, start four road handshaking process, discern each other.In four tunnel handshaking stages, main frame and equipment can generate session key (SK) and finish the process of mutual mandate.
In this step, the play drinking games package of board (TOKEN) of main frame advanced person is all TOKEN information integrations a controlling packet, is MMC, comprises host clock information in this information, and the time started of next MMC, channel time distributes (CTA) and wireless channel management information.Each distributes and comprises equipment and the scheduling that main frame communicates time, is determined the progress of channel time distribution by main frame.Main frame sends to main frame cable adapter with this MMC instruction then, and main frame cable adapter is that the wireless data signal of UWB is gone out by the antenna transmission of self with this MMC instruction by USB cable data conversion of signals.
In this step, equipment cable adaptation module or the interface module that possesses this adaption function receive the UW wireless data signal that contains MMC that main frame cable adapter sends by antenna, and this conversion of signals is become USB cable data signal.
Then the MMC instruction that receives is judged, judged whether to be in the main frame affairs and arrange the progress stage, if execution in step 707 then; Otherwise send solicited message to main frame, enter power save mode.Wherein, send solicited message to main frame, the method that enters power save mode can send sleep request DN to main frame for wireless Internet card, and request enters resting state; Or sending interruption connection request DN, the request interruption is connected with main frame.
In this step, main frame cable adapter in the wireless Internet card receives the USB cable data signal that main frame sends, and to be the UWB wireless data signal with this conversion of signals give wireless Internet access unit in the wireless Internet card by antenna transmission; The wireless Internet access unit will be received from the UWB wireless data signal that main frame cable adapter sends by antenna by equipment cable adaptation module or the interface module that possesses this adaption function, convert USB cable data signal to, send string and interface modular converter to, string and interface modular converter are converted to serial data after the parallel data, send to central processing module, central processing module is finished packing and coded modulation to data by the radio receiving transmitting module of integrated CDMA/GPRS network wireless transmission-receiving function after treatment to the data that receive then, gives the CDMA/GPRS network by antenna transmission afterwards.
Wherein, can adopt the internal storage buffer memory transmission of central processing module to the data of main frame or directly by transmitting by the pre-configured DMA passage of central processing module.
In this step, the transmission of data can be adopted the internal storage buffer memory of central processing module to transmit or be direct by being transmitted by the pre-configured DMA passage of central processing module.
Wherein, can finish unpacking and demodulating and decoding by radio receiving transmitting module to the data that are received from the CDMA/GPRS network, send the data to central processing module afterwards, after central processing module is handled it, by string and interface modular converter, parallel data is converted to serial data, send to interface module afterwards, become the UWB wireless data signal to issue main frame cable adapter by antenna USB cable data conversion of signals by equipment cable adaptation module or by the interface module that possesses this adaption function itself, this UWB wireless data signal that main frame cable adapter will receive converts USB cable data signal to and sends to main frame.
So far, finished wireless data transmission between main frame and the card of surfing Internet.
In the method for present embodiment, comprise based on the UWB adapter in the wireless Internet card of UWB technology: main frame cable adapter, equipment cable adaptation module or possess the interface module of this adaption function, and be to receive and transmit package according to CTA during the work of above-mentioned wireless Internet card.The method of carrying out wireless data transmission between wireless Internet card and the main frame is: main frame cable adapter and equipment cable adaptation module or and the application layer protocol that possesses the physical layer protocol of utilizing UWB between the interface module of this adaption function and USB finish the conversion and the transmission of the wireless data signal of USB cable data signal and UWB.
In addition, in the process of transmission,, can take the mode of data burst to transmit in order to save power consumption.The scope of data burst usually can be between a data package and 16 data packages, and the capacity that happens suddenly certainly also is variable, and the wireless Internet access that has the data burst function usually is stuck in its burst capability of report in its descriptor.Main frame can select any it can start the burst combination of transmission wireless Internet card.
By such scheme as seen, can realize the wireless transmission of data between main frame and the wireless Internet card, reach the purpose of wireless connections, improve the convenience that moves, and need not to be subjected to again the constraint of cable, also avoided causing problems such as communication failure owing to the damage or the loose contact of cable.
The various embodiments described above are a kind of displaying of thought of the present invention, are not to be used for limiting protection scope of the present invention.Though main frame cable adapter, the equipment cable adaptation module of the wireless Internet card in the embodiment of the invention and the interface module that possesses this adaption function all are to be that example describes with the USB interface based on the UWB technology, but be appreciated that, thought of the present invention can be applied to the wireless Internet card based on other interface of UWB wireless technology, also can be for based on the USB interface of other wireless technology or the wireless Internet card of other interface.Therefore within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1, a kind of wireless Internet card is characterized in that, this wireless Internet card comprises: main frame cable adapter and wireless Internet access unit, wherein
Main frame cable adapter, be used to receive the cable data signal of main frame, with the cable data conversion of signals that receives is wireless data signal, give the wireless Internet access unit by antenna transmission, and by the wireless data signal of antenna reception from the wireless Internet access unit, the wireless data signal that receives is converted to the cable data signal, sends to main frame;
The wireless Internet access unit, be used for by the wireless data signal of antenna reception from described main frame cable adapter, the wireless data signal that receives is transmitted to network, and receives the wireless data signal of automatic network, be transmitted to described main frame cable adapter by antenna.
2, wireless Internet card as claimed in claim 1 is characterized in that, described wireless Internet access unit comprises: equipment cable adaptation module, interface module and network communication module, wherein
Equipment cable adaptation module, be used for receiving the wireless data signal that main frame cable adapter sends by antenna, send to interface module after the wireless data signal that receives is converted to the cable data signal, and the cable data signal of receiving interface module, with the cable data conversion of signals that receives is wireless data signal, gives main frame cable adapter by antenna transmission;
Interface module is used to receive the signal of described equipment cable adaptation module, sends to the network communication module, and receives the signal of network communication module, sends to equipment cable adaptation module;
The network communication module is used to receive the wireless data signal of automatic network, sends to interface module after being converted to the cable data signal, and receives the cable data signal from described interface module, sends to network after being converted to wireless data signal.
3, wireless Internet card as claimed in claim 2 is characterized in that, described interface module is: the interface module that includes the general-purpose serial bus USB controller.
As claim 1,2 or 3 described wireless Internet cards, it is characterized in that 4, described network communication module comprises: radio receiving transmitting module, string and interface modular converter and central processing module, wherein
Radio receiving transmitting module is used for receiving by antenna the signal of automatic network, sends to central processing module, and receives the signal of central processing module, sends to network;
Central processing module, be used to receive signal from radio receiving transmitting module, give string and interface modular converter with this data-signal by direct memory DMA channel transfer, perhaps through sending string and interface modular converter behind the buffer memory to, receive the data that string and interface modular converter send, send to radio receiving transmitting module, and mutual by holding wire and described interface module, carry out synchronous initiation;
String and interface modular converter, be used to receive the parallel data that central processing module sends, send to interface module after described parallel data is converted to serial data, and the serial data that sends of receiving interface module, send to central processing module after described serial data is converted to parallel data.
5, wireless Internet card as claimed in claim 4 is characterized in that, described network communication module further comprises:
The SIM/UIM card module is used for storing subscriber information, and provides institute's stored user information for radio receiving transmitting module.
6, wireless Internet card as claimed in claim 4 is characterized in that, described network communication module further comprises:
The interface module of external extension storage card is used for linking to each other with central processing module, and memory card interface is provided.
7, wireless Internet card as claimed in claim 2 is characterized in that, described equipment cable adaptation module is integrated in the described interface module.
As claim 2,3 or 7 described wireless Internet cards, it is characterized in that 8, described wireless Internet access unit further comprises: power management control module and battery, wherein
The power management control module, be used for determining the operating voltage of equipment cable adaptation module, interface module and network communication module, according to determined operating voltage, the electric energy in the battery is offered described equipment cable adaptation module, interface module and network communication module;
Battery is used to the power management control module that electric energy is provided.
9, wireless Internet card as claimed in claim 8 is characterized in that, described wireless Internet access unit further comprises: power-supply battery charging module and power supply adaptor, wherein
Power supply adaptor is used to carry out the adaptive of described power-supply battery charging module and external power source, by power-supply battery charging module, interface module and power management control module, gives described battery with the power delivery of external power source;
The power-supply battery charging module is used for cooperating with power supply adaptor, by interface module and power management control module, gives battery with the power delivery of external power source, and shows the state of battery according to the battery charge amount.
10, wireless Internet card as claimed in claim 9 is characterized in that, described wireless Internet access unit further comprises:
Hub module be used for transmitting data-signal between described interface module and network communication module, and the electric weight that the power-supply battery charging module is transported flows to interface module.
11, a kind of method of utilizing wireless Internet card to carry out wireless data transmission is characterized in that, this method comprises:
A, main frame cable adapter in the wireless Internet card receives the cable data signal that main frame sends, after this conversion of signals is wireless data signal, give wireless Internet access unit in this wireless Internet card by antenna transmission, the wireless Internet access unit is transmitted to network with the wireless data signal that receives, and after described wireless Internet access unit receives the wireless data signal of network-feedback, by antenna the wireless data signal that receives is transmitted to described main frame cable adapter, main frame cable adapter sends to main frame after the wireless data signal that receives is converted to the cable data signal.
12, method as claimed in claim 11 is characterized in that, described wireless Internet access unit comprises equipment cable adaptation module, and interface module and network communication module describedly are transmitted to network with the wireless data signal that receives and are:
The wireless data signal that equipment cable adaptation module will come from main frame cable adapter is converted to the cable data signal, send to network communication module in this wireless Internet access unit by interface module, the cable data signal that network communication module basis receives is determined the destination address in the network, and be wireless data signal with this cable data conversion of signals, send to network;
Described wireless Internet access unit is transmitted to described main frame cable adapter with the wireless data signal that receives:
The wireless data signal that the network communication module will come from network is converted to the cable data signal, send to equipment cable adaptation module by interface module, equipment cable adaptation module is that wireless data signal is given described main frame cable adapter by antenna transmission with the cable data conversion of signals that is received.
13, method as claimed in claim 11 is characterized in that, before the described steps A, further comprises:
The initialization card of surfing Internet, and finish authentication with main frame.
14, method as claimed in claim 13 is characterized in that, described initialization card of surfing Internet is also finished authentication with main frame and comprised:
A01, wireless Internet card power on and initialization, and main frame and wireless Internet card carry out oneself's identification respectively;
A02, wireless Internet card judge whether to have a pair of connection identifier sign indicating number that is complementary with main frame, if exist then execution in step A03; Otherwise return execution in step A02;
A03, main frame and wireless Internet card generate session key, finish Certificate Authority.
15, method as claimed in claim 11 is characterized in that, before the described steps A, further comprises: wireless Internet card reads the fine setting degree management control command MMC that main frame sends;
Judge according to MMC whether described wireless Internet card is in the main frame affairs and arranges the progress stage, if then carry out described steps A, otherwise wireless Internet card sends solicited message to main frame, enters power save mode.
16, method as claimed in claim 15 is characterized in that, described wireless Internet card sends solicited message to main frame and is:
Wireless Internet card sends sleep request or interrupts connection request to main frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100988986A CN100450059C (en) | 2006-07-19 | 2006-07-19 | Wireless network, accessing card and wireless data transmitting method |
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| CNB2006100988986A CN100450059C (en) | 2006-07-19 | 2006-07-19 | Wireless network, accessing card and wireless data transmitting method |
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| CN101572570A (en) * | 2009-06-10 | 2009-11-04 | 青岛海信移动通信技术股份有限公司 | Message processing method and system of wireless network card through mobile termination |
| CN101833367A (en) * | 2010-03-24 | 2010-09-15 | 中兴通讯股份有限公司 | Method and device for realizing low power consumption of China Mobile Multimedia Broadcasting (CMMB) equipment |
| CN101388913B (en) * | 2008-10-27 | 2011-09-14 | 华为终端有限公司 | Data transmission method based on data card and data card thereof |
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| CN101657043B (en) * | 2009-09-23 | 2013-01-09 | 中兴通讯股份有限公司 | Wireless access gateway |
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| AU2005222111B2 (en) * | 2004-03-08 | 2009-10-01 | Koninklijke Philips Electronics N.V. | System and method to enable WUSB applications in a distributed UWB MAC |
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| CN101388913B (en) * | 2008-10-27 | 2011-09-14 | 华为终端有限公司 | Data transmission method based on data card and data card thereof |
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| CN101572570A (en) * | 2009-06-10 | 2009-11-04 | 青岛海信移动通信技术股份有限公司 | Message processing method and system of wireless network card through mobile termination |
| CN101657043B (en) * | 2009-09-23 | 2013-01-09 | 中兴通讯股份有限公司 | Wireless access gateway |
| CN101833367A (en) * | 2010-03-24 | 2010-09-15 | 中兴通讯股份有限公司 | Method and device for realizing low power consumption of China Mobile Multimedia Broadcasting (CMMB) equipment |
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| CN104796158A (en) * | 2015-05-05 | 2015-07-22 | 大连理工大学 | LDPC (low density parity check code) coding and decoding system platform for fixed information length |
| CN104796158B (en) * | 2015-05-05 | 2018-11-06 | 大连理工大学 | A kind of LDPC coding/decoding system platforms for fix information length |
| CN108197053A (en) * | 2018-01-18 | 2018-06-22 | 挖财网络技术有限公司 | Interface Expanding equipment and system |
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