CN101505354B - Fax service implementing method, interconnection functional unit and terminal - Google Patents
Fax service implementing method, interconnection functional unit and terminal Download PDFInfo
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- CN101505354B CN101505354B CN 200910117867 CN200910117867A CN101505354B CN 101505354 B CN101505354 B CN 101505354B CN 200910117867 CN200910117867 CN 200910117867 CN 200910117867 A CN200910117867 A CN 200910117867A CN 101505354 B CN101505354 B CN 101505354B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32358—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter
- H04N1/32363—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter at the transmitter or at the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
- H04N1/32765—Initiating a communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
- H04N1/32765—Initiating a communication
- H04N1/32771—Initiating a communication in response to a request, e.g. for a particular document
- H04N1/3278—Initiating a communication in response to a request, e.g. for a particular document using a protocol or handshaking signal, e.g. non-standard set-up [NSS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
- H04N1/32789—Details of handshaking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3285—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter
- H04N2201/3298—Checking or indicating the storage space
Abstract
The invention provides a method for realizing fax service, which comprises the following steps that: after sending a multipage signal message to a called terminal, a service layer of an interworking functional unit IWF on a called side does not receive a message of message confirmation returned by the called terminal beyond a first time threshold, constructs and sends the message of the message confirmation to a modem of the IWF on the called side; after receiving a connecting message sent by the modem on the called side, the service layer of the IWF on the called side receives fax data sent by the modem of the IWF on the called side and stores the fax data in a buffer region; and if the service layer of the IWF on the called side receives the message of the message confirmation returned by the called terminal before the buffer region overflows, the service layer of the IWF on the called side sends the connecting message and the fax data in the buffer region to the called terminal. The invention also provides the interworking functional unit and a terminal.
Description
Technical field
The present invention relates to field of wireless communication, relate in particular to a kind of implementation method, intercommunication function unit and terminal of facsimile service.
Background technology
Radio communication relies on it to be subjected to the few and good characteristics of real-time of space-time restriction, has become one of most popular means of communication of people today.It can provide polytype service, as voice, data, fax or the like.Along with the continuous expansion in mankind's activity space, the coverage rate of mobile communication, convenient and flexibility are proposed higher requirement, satellite begins to be applied to moving communicating field under this background.
Satellite communication with the obvious advantage: communication range is big, as long as the scope that the wave beam of satellites transmits covers all can communicate; Be not subject to land disaster influence; Construction speed is fast or the like.But itself also there are many shortcomings to overcome,, can cause certain influence the business of original wireless product such as time delay and shake, such as: Packet data service; Some is professional even can not normally use under satellite link, such as: facsimile service.
Because the time delay of satellite link is bigger, come and go about about 700 milliseconds, add system's time delay, under the satellite link condition, carry out a business and will bear and prolonged for a long time in 1 second.When time delay is big, if generation loss of data, TCP (Transmission Control Protocol, transmission control protocol) layer retransmits a bag and comes and goes the increase processing time more than 1 second, even this problem also is difficult to avoid under the very high situation of TCP/IP (Intemet Protocol, Internet protocol) treatment effeciency.But facsimile service is a synchronous transmission process, be to consult or transfer of data all has certain requirement to time point, especially page or leaf with page between negotiations process.So in case take place that data overstock, when negotiation signal is late, original fax flow process just can't operate as normal, thereby causes facsimile service can't carry out under the satellite link condition.
Summary of the invention
Technical problem to be solved by this invention provides a kind of implementation method, intercommunication function unit and terminal of facsimile service, thereby can normally use facsimile service under the satellite link condition.
In order to solve the problems of the technologies described above, the invention provides a kind of facsimile service implementation method, comprise: after the operation layer of callee side intercommunication function unit IWF sends to terminal called with the multipage signal message, do not receive the message acknowledge message that terminal called returns if surpass very first time thresholding, then construct the message acknowledge message and send to the modulator-demodulator of callee side IWF, after the operation layer of callee side IWF receives the connection message of callee side modulator-demodulator transmission, the facsimile data that the modulator-demodulator of reception callee side IWF sends also is kept in the buffering area, if the operation layer of described callee side IWF is received the message acknowledge message that terminal called returns before described buffering area overflows, the operation layer of described callee side IWF sends to terminal called with the facsimile data in described connection message and the described buffering area.
Further, said method also can have following characteristics, if the operation layer of described callee side IWF is not received the message acknowledge message that terminal called returns before buffering area overflows, then discharges this connection.
Further, said method also can have following characteristics, and the size of described buffering area can only be preserved one page facsimile data.
Further, said method also can have following characteristics, described method also comprises, after the operation layer of described callee side IWF sends to terminal called with the flow process end, do not receive the message acknowledge message that terminal called returns if surpass second time threshold, then construct the message acknowledge message and send to the modulator-demodulator of callee side IWF, the disconnection connection message that the modulator-demodulator of callee side IWF is sent sends to terminal called.
Further, said method also can have following characteristics, and the operation layer of described callee side IWF carries out following processing to the facsimile data that the modulator-demodulator from callee side IWF receives, and the filler that occurs being no less than preset times in the facsimile data is continuously removed.
The present invention also proposes a kind of facsimile service implementation method, comprise: after terminal called is received the multipage signal message of callee side IWF operation layer, if also do not receive the message acknowledge message of callee side picture unit, then construct the message acknowledge message and send to callee side IWF, the current page facsimile data that does not send to the callee side picture unit is saved in the buffering area, continues to send this current page facsimile data to the callee side picture unit.
Further, said method also can have following characteristics, described terminal called is after receiving described multipage signal message, receive the next page facsimile data that callee side IWF operation layer sends, after the transmission of current page facsimile data finishes and receives the message acknowledge message of callee side picture unit, send this next page facsimile data to the callee side picture unit.
The present invention also proposes a kind of intercommunication function unit of callee side, and described callee side intercommunication function unit IWF comprises operation layer and modulator-demodulator, wherein,
Described operation layer comprises,
Transmitting element is used for the multipage signal message is sent to terminal called; When also being used for before buffering area overflows, receiving the message acknowledge message that terminal called returns, the facsimile data in connection message and the buffering area is sent to terminal called;
Structure and transmitting element are used for after transmitting element sends the multipage signal message, and when surpassing the message acknowledge message that very first time thresholding do not receive that terminal called returns, structure message acknowledge message sends to described modulator-demodulator;
Receiving element is used to receive connection message and the facsimile data that described modulator-demodulator sends, and described facsimile data is kept in the buffering area.
Further, above-mentioned intercommunication function unit also can have following characteristics, and the operation layer of described IWF also comprises releasing unit, when being used for not receiving the message acknowledge message that terminal called returns before buffering area overflows, discharges this connection.
The present invention also provides a kind of terminal of callee side, and described terminal comprises,
Receiving element is used to receive the multipage signal message of callee side IWF operation layer, also is used to receive the facsimile data that callee side IWF operation layer sends;
Structure and transmitting element are used for after the multipage signal message that receives callee side IWF operation layer, and when also not receiving the message acknowledge message of callee side picture unit, structure message acknowledge message sends to callee side IWF operation layer;
Buffer unit, the current page facsimile data that is used for not sending to the callee side picture unit is saved in buffering area;
Transmitting element is used for sending facsimile data to the callee side picture unit, comprises the current page facsimile data in the buffering area.
Adopt the method for the invention and device, compared with prior art, realized under the satellite link condition, realizing facsimile service, reached the effect that normally to use facsimile service under the satellite link condition, remedy the deficiency that to use facsimile service under the existing satellite link condition, improved the compatibility of wireless system.
Description of drawings
Fig. 1 is the application schematic diagram of cdma system under a kind of satellite link condition, and each equipment corresponding protocols level; Mark the position of the protocol hierarchy that the present invention relates to revise with boldface letter;
Fig. 2 is the normal negotiations flow process between the professional one page of digital fax and another page;
Fig. 3 is one page of callee side IWF increase of the present invention and the handling process between another page;
Fig. 4 is one page of called terminal side increase of the present invention and the handling process between another page.
Embodiment
The present invention proposes following solution: at the fax receiver side, in prevpage and following one page negotiations process, by the constructing virtual signal with open up extra buffer and guarantee that system and terminal still can cooperate the continuation operate as normal under the situation that data overstock, thereby better be fit to than transmission work under the long time delay situation.The present invention is not only applicable to the facsimile service under the satellite link, is applicable to the situation that time delay is bigger under other links (reaching about 500ms such as round-trip delay) yet.
Shown in Figure 1 is facsimile service system schematic under the satellite link condition, mainly comprise Calling Side facsimile machine, calling terminal, Calling Side IWF (Inter-WorkingFunction, intercommunication function unit), callee side IWF, terminal called, the callee side facsimile machine, only show among Fig. 1 caller and called in a side, opposite side and each device that has illustrated are corresponding, omit in Fig. 1.Wherein, also other can realize the picture unit of faxing being not limited to facsimile machine for Calling Side facsimile machine and callee side facsimile machine.IWF (Calling Side IWF and callee side IWF) comprises operation layer and has the modulator-demodulator of facsimile function, abbreviates modulator-demodulator as in the follow-up explanation.This modulator-demodulator is used for modulation, handles the AT order, such as with the negotiation of some instructions of IWF operation layer.This modulator-demodulator generally includes facsimile protocol software section of handling and the chip with facsimile function, and wherein, the chip with facsimile function can be made up of the CSMV6 chip, and it is equivalent to a modem pond (6 modem chips are formed).During transfer of data, the Calling Side facsimile machine sends to calling terminal with data, and calling terminal sends to Calling Side IWF, and Calling Side IWF sends it to callee side IWF, and callee side IWF sends to terminal called, and terminal called sends to the callee side facsimile machine.Wherein, calling terminal sends to data the operation layer of Calling Side IWF, the operation layer of Calling Side IWF sends to the modem with facsimile function of callee side IWF by its modem with facsimile function with data, is re-send to the operation layer of callee side IWF by the modem with facsimile function of callee side IWF.
The present invention is by the following technical solutions:
Requirement according to the TCP/IP regulation keeps foundation among existing Transmission TCP/IP, termination and transition between states mode; Keep the basic interaction flow and the sequencing of the facsimile service negotiation of original facsimile protocol regulation, carry out following improvement:
A, callee side IWF remove the continuous filler " 0 " of some in the data;
Particularly, the operation layer of callee side IWF removes the continuous filler of some in the facsimile data that the modulator-demodulator of callee side IWF sends, and filler is generally " 0 ".
The modulator-demodulator of callee side IWF sends in the data of operation layer of callee side IWF can add some fillers " 0 "; Follow the regulation of agreement T.4 according to ITU-T, whether filler exists does not influence True Data and prints at facsimile machine, so the filler that removes some is to avoid that unnecessary data is issued terminal; The filling mode of modulator-demodulator that removes the number of filler and IWF is relevant.
B, callee side fax page or leaf with page between in the negotiations process, terminal called is received " MPS " (MultiPage Signal that the operation layer of callee side IWF sends, the multipage signal) no matter whether receives " MCF " (Message Confirmation of callee side facsimile machine during message, the message affirmation) message all can be constructed the operation layer that " MCF " message sends to callee side IWF earlier, and the current page data that will not distribute to the callee side facsimile machine are saved in extra buffer continuation transmission simultaneously; If terminal called is received next page data that callee side IWF sends then normally received at this moment, the current page data send next page data after sending " MCF " message of receiving the callee side facsimile machine that finishes again by the time;
C, callee side fax page or leaf with page between in the negotiations process, the operation layer of callee side IWF send MPS message to terminal called after, surpass certain hour and do not receive " MCF " message of terminal called yet, then construct the modulator-demodulator that " MCF " message sends to callee side IWF.The operation layer of callee side IWF receives after " CONNECT " (connection) message of modulator-demodulator of callee side IWF that next page data that the modulator-demodulator with callee side IWF sends over is saved in extra buffer, if before this extra buffer overflows, receive " MCF " message of terminal called, send " CONNECT " message and give terminal called and the data of extra buffer are sent to terminal called; If do not receive " MCF " message of terminal called before extra buffer overflows, then discharge this link according to normal flow.
The facsimile service implementation method may further comprise the steps under the satellite link that the present invention proposes:
Step 110, calling terminal by eating dishes without rice or wine and the protocal layers reliability transmission arrives the fax application layer of Calling Side IWF, is handled according to facsimile protocol facsimile negotiation message and data then to negotiation message and data; After one page data processing is finished, if last page execution in step 120 then, if also have down one page then execution in step 130;
Step 120, Calling Side IWF and calling terminal are all according to the normal protocol flow processing; The operation layer of callee side IWF is received " EOP " (End Of Procedures from the modulator-demodulator of callee side IWF, the flow process end) after message sends it to terminal called, if surpass " MCF " message that second time threshold is not received terminal called, then structure " MCF " message sends to the modulator-demodulator of callee side IWF, " DCN " that will receive from the modulator-demodulator of callee side IWF (Disconnect disconnects connection) message sends to terminal called simultaneously.Terminal called will judge whether earlier data are sent to the callee side facsimile machine fully after receiving " DCN " message, if transmission finishes then normally hang up; If not, hang up again after then waiting data to send to finish; Execution in step 150 then;
Step 130, Calling Side IWF and calling terminal are all according to the normal protocol flow processing; The operation layer of callee side IWF sends it to terminal called after receiving " MPS " message, if surpass " MCF " message that very first time thresholding is confiscated terminal called, then structure " MCF " message sends to the modulator-demodulator of callee side IWF, and " CONNECT " message that the modulator-demodulator of callee side IWF is issued is preserved simultaneously; The modulator-demodulator of callee side IWF can send to next page data the operation layer of callee side IWF at this moment, the operation layer of callee side IWF is opened up extra buffer and is preserved this data, receives that before this extra buffer overflows " MCF " message of terminal called then sends to terminal together with " CONNECT " message and these data; If the operation layer of callee side IWF was not received " MCF " message of terminal called before this extra buffer overflowed, then discharge this link according to normal flow;
If the operation layer of callee side IWF has been constructed the modulator-demodulator that MCF message sends to callee side IWF, when receiving the MCF message of terminal called before extra buffer overflows, the operation layer of callee side IWF does not send to this MCF message the modulator-demodulator of callee side IWF.
The size of described buffering area is generally only held one page facsimile data, and the present invention is not limited to this certainly.
Step 140, terminal called carries out following operation: receive " MPS " message of operation layer of callee side IWF when terminal called after, if received " MCF " message of callee side facsimile machine, show that this moment, this page data finished to facsimile transmission, this moment " MCF " message is sent to the operation layer of callee side IWF; If do not receive " MCF " message of callee side facsimile machine this moment yet, then structure " MCF " message sends to the operation layer of callee side IWF, simultaneously this page data that not send to the callee side facsimile machine is saved in extra buffer and continues to send to the callee side facsimile machine.Then normally receive if receive the follow-up facsimile data that the operation layer of callee side IWF sends (as, next page data), particularly, terminal called receives next page data after receiving the CONNECT message of callee side IWF operation layer.Finish in the transmission of current page data, and after receiving " MCF " message of callee side facsimile machine, send next page data again to the callee side facsimile machine.
Wherein, step 130, step 140 parallel processing.
Step 150 if also have one page down, is then restarted from step 110; If last page is received then normal termination flow process of the normal release message of terminal, the overtime message of hanging up of modulator-demodulator of waiting for callee side IWF if terminal does not have to send the message of normal release flow process, last process ends.
In above-mentioned processing procedure, the data that send to the operation layer of callee side IWF from the modulator-demodulator of called IWF need be carried out following processing: remove occurring " 0 " of n (for example n is 5) more than inferior the data continuously.Operation layer by callee side IWF removes the continuous filler of some in the facsimile data.
With CDMA (Code Division Multiple Access, code division multiple access) system in IWF and terminal to carry out digital fax be example, introduce (the Base Station Controller of BSC in the base station sub-system, base station controller) and BTS (Base Transceiver System, a kind of realization of facsimile service when adopting the satellite chain to connect base station transceiver), but not as a limitation of the invention.
IWF and terminal between satellite link nextpage and page or leaf to handle step through consultation as follows:
Step 210, calling terminal by eating dishes without rice or wine and protocal layers (referring to accompanying drawing 1) reliability transmission arrives the fax application layer of Calling Side IWF, is handled (referring to accompanying drawing 2) according to facsimile protocol to negotiation message and data with facsimile negotiation message and data then; After one page data processing is finished; If last page execution in step 220 then, if also have down one page then execution in step 230;
Step 220, Calling Side IWF and calling terminal are all according to the normal protocol flow processing; After the operation layer of callee side IWF receives that "+FET:2 " (digital fax is represented a piece of news of EOP) sends it to terminal called, if surpass " AT+FDR " (representing a piece of news of MCF in the digital fax) that certain hour is not received terminal called, then structure " AT+FDR " sends to the modulator-demodulator of callee side IWF, and "+FHNG:0 " (the representing a piece of news of DCN in the digital fax) with the modulator-demodulator of callee side IWF sends to terminal called simultaneously.Terminal called receives at this moment "+FHNG:0 " back wants judgment data whether to send to the callee side facsimile machine fully earlier, if transmission finishes then normally hang up; If not, hang up again after then waiting data to send to finish; Execution in step 250;
Step 230, Calling Side IWF and calling terminal are all according to the normal protocol flow processing; The operation layer of callee side IWF sends it to terminal called after receiving "+FET:0 (representing a piece of news of MPS in the digital fax) ", 4 seconds, (4s only was an example if surpass, the present invention does not limit this) confiscate " AT+FDR " of terminal called, then structure " AT+FDR " sends to the modulator-demodulator of callee side IWF, and " CONNECT " that issue with the modulator-demodulator of callee side IWF preserves simultaneously; The modulator-demodulator of callee side IWF can send to next page data the operation layer of callee side IWF at this moment, the operation layer of callee side IWF is opened up extra buffer and is preserved data, if received " AT+FDR " of terminal called then " CNNECT " and data are sent to terminal called together before this extra buffer overflows; If still do not receive " AT+FDR " of terminal called after this extra buffer overflows, then discharge this link according to normal flow; Referring to accompanying drawing 3;
Step 240, terminal called carries out following operation in the time of execution in step 230: receive "+the FET:0 " of operation layer of callee side IWF when terminal called after, if received " MCF " of callee side facsimile machine, show that this moment, this page data finished to the transmission of callee side facsimile machine, this moment " AT+FDR " sent to the operation layer of callee side IWF; If do not receive yet this moment " MCF " of callee side facsimile machine, then structure " AT+FDR " sends the operation layer of callee side to IWF, simultaneously this page data that not send to the callee side facsimile machine is saved in extra buffer and continues to send to the callee side facsimile machine.Continue normal the reception if receive next page data that the operation layer of callee side IWF sends this moment, particularly, terminal called receives next page data after receiving the CONNECT message of callee side IWF operation layer, by the time current page send finish and receive " MCF " of callee side facsimile machine after send next page data again; Wherein, if the overtime CONNECT message of not receiving the operation layer transmission of callee side IWF then discharges this connection; If the overtime MCF message of not receiving that the callee side facsimile machine returns then discharges this connection.Specifically referring to accompanying drawing 4;
Step 250 is if also have down one page then restart from step 210; If last page is received then normal termination flow process of the normal release message of terminal, the overtime message of hanging up of modulator-demodulator of waiting for callee side IWF if terminal does not have to send the message of normal release flow process, last process ends.
In above-mentioned processing procedure, the data that send to the operation layer of callee side IWF from the modulator-demodulator of callee side IWF need be carried out following processing: " 0 " that occurs more than 5 times continuously the data is removed.
The present invention also provides a kind of intercommunication function unit, and described intercommunication function unit IWF comprises operation layer and modulator-demodulator, wherein,
Described operation layer comprises,
Transmitting element is used for the multipage signal message is sent to terminal called; When also being used for before buffering area overflows, receiving the message acknowledge message that terminal called returns, the facsimile data in connection message and the buffering area is sent to terminal called;
Structure and transmitting element are used for after transmitting element sends the multipage signal message, and when surpassing the message acknowledge message that very first time thresholding do not receive that terminal called returns, structure message acknowledge message sends to described modulator-demodulator;
Receiving element is used to receive connection message and the facsimile data that described modulator-demodulator sends, and described facsimile data is kept in the buffering area;
Releasing unit when being used for not receiving the message acknowledge message that terminal called returns before buffering area overflows, discharges this connection.
Data processing unit, the filler that occurs being no less than preset times in the facsimile data that receiving element is received continuously removes.
The present invention also provides a kind of terminal, and described terminal comprises,
Receiving element is used to receive the multipage signal message of IWF operation layer, also is used to receive the facsimile data that the IWF operation layer sends;
Structure and transmitting element are used for after the multipage signal message that receives the IWF operation layer, and when also not receiving the message acknowledge message of callee side picture unit, structure message acknowledge message sends to the IWF operation layer;
Buffer unit, the current page facsimile data that is used for not sending to the callee side picture unit is saved in buffering area;
Transmitting element is used for sending facsimile data to the callee side picture unit, comprises the current page facsimile data in the buffering area; Current page facsimile data in sending buffering area and receive the message acknowledge message of callee side picture unit after, send the next page facsimile data to the callee side picture unit.
Claims (8)
1. facsimile service implementation method, it is characterized in that, comprise: after the operation layer of callee side intercommunication function unit IWF sends to terminal called with the multipage signal message, do not receive the message acknowledge message that terminal called returns if surpass very first time thresholding, then construct the message acknowledge message and send to the modulator-demodulator of callee side IWF, after the operation layer of callee side IWF receives the connection message of callee side modulator-demodulator transmission, the facsimile data that the modulator-demodulator of reception callee side IWF sends also is kept in the buffering area, if the operation layer of described callee side IWF is received the message acknowledge message that terminal called returns before described buffering area overflows, the operation layer of described callee side IWF sends to terminal called with the facsimile data in described connection message and the described buffering area, after terminal called is received the multipage signal message of callee side IWF operation layer, if also do not receive the message acknowledge message of callee side picture unit, then construct the message acknowledge message and send to callee side IWF, the current page facsimile data that does not send to the callee side picture unit is saved in the buffering area, continues to send this current page facsimile data to the callee side picture unit.
2. the method for claim 1 is characterized in that, if the operation layer of described callee side IWF is not received the message acknowledge message that terminal called returns before buffering area overflows, then discharges this connection.
3. the method for claim 1 is characterized in that, the size of described buffering area can only be preserved one page facsimile data.
4. the method for claim 1, it is characterized in that, described method also comprises, after the operation layer of described callee side IWF sends to terminal called with the flow process end, do not receive the message acknowledge message that terminal called returns if surpass second time threshold, then construct the message acknowledge message and send to the modulator-demodulator of callee side IWF, the disconnection connection message that the modulator-demodulator of callee side IWF is sent sends to terminal called.
5. as the arbitrary described method of claim 1 to 4, it is characterized in that, the operation layer of described callee side IWF carries out following processing to the facsimile data that the modulator-demodulator from callee side IWF receives, and the filler that occurs being no less than preset times in the facsimile data is continuously removed.
6. the method for claim 1, it is characterized in that, described terminal called is after receiving described multipage signal message, receive the next page facsimile data that callee side IWF operation layer sends, after the transmission of current page facsimile data finishes and receives the message acknowledge message of callee side picture unit, send this next page facsimile data to the callee side picture unit.
7. a facsimile service implement device is characterized in that, described device comprises callee side intercommunication function unit IWF and terminal called, and described callee side intercommunication function unit IWF comprises operation layer and modulator-demodulator, wherein,
Described operation layer comprises,
Transmitting element is used for the multipage signal message is sent to terminal called; When also being used for before buffering area overflows, receiving the message acknowledge message that terminal called returns, the facsimile data in connection message and the buffering area is sent to terminal called;
Structure and transmitting element are used for after transmitting element sends the multipage signal message, and when surpassing the message acknowledge message that very first time thresholding do not receive that terminal called returns, structure message acknowledge message sends to described modulator-demodulator;
Receiving element is used to receive connection message and the facsimile data that described modulator-demodulator sends, and described facsimile data is kept in the buffering area;
Described terminal called comprises,
Receiving element is used to receive the multipage signal message of callee side IWF operation layer, also is used to receive the facsimile data that callee side IWF operation layer sends;
Structure and transmitting element are used for after the multipage signal message that receives callee side IWF operation layer, and when also not receiving the message acknowledge message of callee side picture unit, structure message acknowledge message sends to callee side IWF operation layer;
Buffer unit, the current page facsimile data that is used for not sending to the callee side picture unit is saved in buffering area;
Transmitting element is used for sending facsimile data to the callee side picture unit, comprises the current page facsimile data in the buffering area.
8. device as claimed in claim 7 is characterized in that the operation layer of described callee side IWF also comprises releasing unit, when being used for not receiving the message acknowledge message that terminal called returns before buffering area overflows, discharges this connection.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910117867 CN101505354B (en) | 2009-03-13 | 2009-03-13 | Fax service implementing method, interconnection functional unit and terminal |
| MX2011009581A MX2011009581A (en) | 2009-03-13 | 2009-12-24 | Fax service realization method, inter-working function unit and terminal. |
| PCT/CN2009/075984 WO2010102501A1 (en) | 2009-03-13 | 2009-12-24 | Fax service realization method, inter-working function unit and terminal |
| RU2011139362/07A RU2504098C2 (en) | 2009-03-13 | 2009-12-24 | Method of providing fax service, internetworking function unit and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910117867 CN101505354B (en) | 2009-03-13 | 2009-03-13 | Fax service implementing method, interconnection functional unit and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101505354A CN101505354A (en) | 2009-08-12 |
| CN101505354B true CN101505354B (en) | 2011-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910117867 Active CN101505354B (en) | 2009-03-13 | 2009-03-13 | Fax service implementing method, interconnection functional unit and terminal |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101505354B (en) |
| MX (1) | MX2011009581A (en) |
| RU (1) | RU2504098C2 (en) |
| WO (1) | WO2010102501A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505354B (en) * | 2009-03-13 | 2011-04-20 | 中兴通讯股份有限公司 | Fax service implementing method, interconnection functional unit and terminal |
| JP5185359B2 (en) | 2010-12-15 | 2013-04-17 | キヤノン株式会社 | MODEM CONTROL DEVICE, ITS CONTROL METHOD, PROGRAM, AND IMAGE PROCESSING DEVICE |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ286929B6 (en) * | 1993-08-05 | 2000-08-16 | Motorola Inc | Telefax communication process within a communication system with selective calling and communication system for making the same |
| US5491565A (en) * | 1993-12-03 | 1996-02-13 | Telefonaktiebolaget Lm Ericsson | System and method for varying the transmission rate of facsimile data in a telecommunication system |
| EP0835581B1 (en) * | 1995-06-30 | 2000-09-06 | Inmarsat Ltd. | Communication method and apparatus |
| US5815809A (en) * | 1996-04-16 | 1998-09-29 | Amsc Subsidiary Corporation | Mobile earth terminal communication device providing voice, data, facsimile, and/or roaming communication features |
| CA2310075C (en) * | 1997-11-21 | 2008-08-26 | Horst Froessl | Document control and transmission system |
| JP4008632B2 (en) * | 1999-09-27 | 2007-11-14 | 株式会社沖データ | Facsimile communication system |
| US6937709B2 (en) * | 2000-02-11 | 2005-08-30 | Lsi Logic Corporation | Fax transmission over congested or corrupted wideband network, or narrowband network, using ECM error block flow control |
| CN1303802C (en) * | 2004-11-03 | 2007-03-07 | 华为技术有限公司 | Method for processing fax service |
| JP4487928B2 (en) * | 2005-12-29 | 2010-06-23 | ブラザー工業株式会社 | Communication terminal device and facsimile communication method |
| CN101505354B (en) * | 2009-03-13 | 2011-04-20 | 中兴通讯股份有限公司 | Fax service implementing method, interconnection functional unit and terminal |
-
2009
- 2009-03-13 CN CN 200910117867 patent/CN101505354B/en active Active
- 2009-12-24 RU RU2011139362/07A patent/RU2504098C2/en not_active IP Right Cessation
- 2009-12-24 WO PCT/CN2009/075984 patent/WO2010102501A1/en active Application Filing
- 2009-12-24 MX MX2011009581A patent/MX2011009581A/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010102501A1 (en) | 2010-09-16 |
| CN101505354A (en) | 2009-08-12 |
| MX2011009581A (en) | 2011-09-28 |
| RU2011139362A (en) | 2013-04-27 |
| RU2504098C2 (en) | 2014-01-10 |
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