CN105281863A - Communication data frame transmission method - Google Patents
Communication data frame transmission method Download PDFInfo
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- CN105281863A CN105281863A CN201410302227.1A CN201410302227A CN105281863A CN 105281863 A CN105281863 A CN 105281863A CN 201410302227 A CN201410302227 A CN 201410302227A CN 105281863 A CN105281863 A CN 105281863A
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Abstract
The invention discloses a communication data frame transmission method, which comprises the step that a transmitting end and a receiving end transmits and receives a data frame according to a same random transmission time base T, and further comprises the steps that: S1, the transmitting end generates a random number T1 through a default transmission time base T0, and the random number T1 is set to be a first frame data transmission time base; S2, the transmitting end establishes communication with the receiving end, and the transmitting end transmits the random number T1 to the receiving end through the default transmission time base T0; S3, the transmitting end transmits first frame data via the transmission time base T1, and subsequent data frames generate corresponding transmission time bases on the basis of the transmission time base of the previous frame; S4, and the receiving end receives the first frame data according to the transmission time base T1, generates corresponding transmission time bases of subsequent data frames according to a corresponding transmission time base method generated by the transmitting end, and receives data according to the corresponding transmission time bases. The communication data frame transmission method establishes a reliable transmission mechanism by introducing a variable transmission time base, makes the communication confidentiality higher and application simpler, and is suitable for communication occasions requiring confidentiality for communication content.
Description
Technical field
The invention of this reality relates to a kind of communication data frame transmission method.
Background technology
Communications protocol, also known as communication regulations, refers to that communication two party is arranged the one of data transfer control.Agreement comprises data format, the method for synchronization, transfer rate, transfer step, and the problems such as EDC error detect correction mode and control character definition make Uniform provisions, and communication two party must be observed jointly, and it is also called link control procedure.Based on this agreement, the equipment that different manufacturers is produced could be correct, Effec-tive Function.This for uniformity and the open design considered, really accelerate the development of electronic technology, but bring the safety issue of data itself equally.Owing to have employed the communication interface of standard, if the parsing person outside two modules attempts the meaning obtaining data and the data transmitted between them, as long as know their standard given protocol, adopt the mode image data of access in parallel, more just can go out data sense by conversed analysis according to action and response.
For protecting the fail safe of communication; designer deliberately need increase some invalid datas on original data basis; and send together, but due to designer design module pre-defined agreement, just can respond valid data and invalid data be filtered.But parsing person can be more than authentic and valid data by the data that instrument gets, and being difficult to differentiate effective data, being difficult to determine when resolving data.
The above-mentioned means of communication are nearly all from data, do not change communications protocol, and parsing person just can get data itself according to agreement, just likely successfully parse data and meaning thereof.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the invention provides a kind of design of communication data frame transmission method.
A kind of communication data frame transmission method, comprises the following steps: transmitting terminal carries out the transmitting-receiving of Frame with receiving terminal according to base T during identical opportunistic transmission.
And comprise the following steps:
S1, transmitting terminal generates random number T1 by base T0 during default transport, base when T1 being set as the first frame data transmit; S2, transmitting terminal and receiving terminal set up communication, and T1 is sent to receiving terminal by base T0 during default transport by transmitting terminal; S3, when transmitting terminal is to transmit, base T1 sends the first frame data, base subsequent data frame generates the transmission of its correspondence when the transmission of previous frame based on base time; S4, receiving terminal receives the first frame data according to base T1 during transmission, and when during the transmission of the correspondence generated according to transmitting terminal, base mode generates the correspondence transmission of subsequent data frame base and transmission according to correspondence time base receive data.
Described step is gathered S2 and is specifically comprised: S21, and when transmitting terminal sends Frame, data stored in the data buffer zone of transmitting terminal, and trigger the Frame sent in function transmission data buffer zone; S22, when receiving terminal receives Frame, data are stored in the reception data buffer of receiving terminal.
Described step S3 also comprises: after completing the first frame data transmission, if need carry out the second frame, the 3rd frame, n-th frame data transmission, then set second frame data transmission time base be T2=f (T1), the 3rd frame data transmission time base be f (T2)=f (f (T1)), n-th frame data transmission time base be Tn=f (f
n-1(T1)), and continue send the second frame, the 3rd frame, the n-th frame data to receiving terminal.
Also comprise ack msg frame re-transmission step: after transmitting terminal sends Frame, if do not receive the ACK frame of receiving terminal feedback, then dataframe failure, and point out transmitting terminal to resend Frame.
Also comprise sending times detecting step: when transmitting terminal resend Frame number of times exceed regulation maximum times time, then Communications failure, and point out transmitting terminal to re-establish communication.
Base generation step when also comprising transmission: after transmitting terminal and receiving terminal complete a complete data frame communication, then base when transmitting terminal regenerates new transmission; During the transmission of described generation, base is the random number of specified scope.
Described communication is both-way communication.
In sum, the present invention has following beneficial effect: improve communication security by base during introducing variable propagation, and set up reliable and stable transmission mechanism and make communication security higher, and application is simple, is applicable to the communication occasion that needs are maintained secrecy to Content of communciation.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of communication data frame transmission method of the present invention;
Base schematic diagram when Fig. 2 is transmission of the present invention.
Embodiment
In order to allow those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the invention will be further elaborated.
As shown in Figure 1, present invention is disclosed a kind of communication data frame transmission method, comprise the following steps: transmitting terminal carries out the transmitting-receiving of Frame with receiving terminal according to base T during identical opportunistic transmission.Further comprising the steps of: S1, transmitting terminal generates random number T1 by base T0 during default transport, base when T1 being set as the first frame data transmit; S2, transmitting terminal and receiving terminal set up communication, and T1 is sent to receiving terminal by base T0 during default transport by transmitting terminal; S3, when transmitting terminal is to transmit, base T1 sends the first frame data, base subsequent data frame generates the transmission of its correspondence when the transmission of previous frame based on base time; S4, receiving terminal receives the first frame data according to base T1 during transmission, and when during the transmission of the correspondence generated according to transmitting terminal, base mode generates the correspondence transmission of subsequent data frame base and transmission according to correspondence time base receive data.
During concrete enforcement, described step is gathered S2 and is specifically comprised: when transmitting terminal sends Frame, and data stored in the data buffer zone of transmitting terminal, and trigger the Frame sent in function transmission data buffer zone; When receiving terminal receives Frame, data are stored in the reception data buffer of receiving terminal; Described step S3 also comprises: after completing the first frame data transmission, if need carry out the second frame, the 3rd frame, n-th frame data transmission, then set second frame data transmission time base be T2=f (T1), the 3rd frame data transmission time base be f (T2)=f (f (T1)), n-th frame data transmission time base be Tn=f (f
n-1(T1)), and continue send the second frame, the 3rd frame, the n-th frame data to receiving terminal.As shown in Figure 2, after receiving terminal successfully receives the random number T1 of transmitting terminal, the time base T2 of the second frame data is exactly f (T1), and during the transmission of the 3rd frame data, base just becomes f (T2), the like.Basic function f (x) when wherein running same set of transmission in transmitting terminal and receiving terminal, therefore transmitting terminal and the time base of receiving terminal both sides can ensure to obtain synchronous.
Cause dataframe in order to prevent transmitting terminal or receiving terminal due to other reason or receive unsuccessful, also comprise ack msg frame re-transmission step: after transmitting terminal sends Frame, if do not receive the ACK frame of receiving terminal feedback, then dataframe failure, and point out transmitting terminal to resend Frame; Namely transmitting terminal does not correctly receive ACK frame and just thinks this Communications failure after sending Frame in official hour, transmitting terminal is needed to resend Frame, when transmitting terminal resend Frame number of times exceed regulation maximum times time, then Communications failure, and point out transmitting terminal to re-establish communication.After transmitting terminal and receiving terminal complete a complete Frame communication success, base when transmitting terminal just can regenerate new transmission; In order to ensure communication efficiency, during the transmission of described generation, base is the random number of specified scope.
In order to ensure transmitting terminal and receiving terminal communication certainty, described communication is both-way communication.
The present embodiment is more excellent execution mode of the present invention, and the part be not described in detail all adopts known mature technology.It should be noted that; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (8)
1. a communication data frame transmission method, is characterized in that, comprises the following steps: transmitting terminal carries out the transmitting-receiving of Frame with receiving terminal according to base T during identical opportunistic transmission.
2. a kind of communication data frame transmission method according to claim 1, is characterized in that, comprise the following steps:
S1, transmitting terminal generates random number T1 by base T0 during default transport, base when T1 being set as the first frame data transmit;
S2, transmitting terminal and receiving terminal set up communication, and T1 is sent to receiving terminal by base T0 during default transport by transmitting terminal;
S3, when transmitting terminal is to transmit, base T1 sends the first frame data, base subsequent data frame generates the transmission of its correspondence when the transmission of previous frame based on base time;
S4, receiving terminal receives the first frame data according to base T1 during transmission, and when during the transmission of the correspondence generated according to transmitting terminal, base mode generates the correspondence transmission of subsequent data frame base and transmission according to correspondence time base receive data.
3. a kind of communication data frame transmission method according to claim 2, it is characterized in that, described step is gathered S2 and is specifically comprised:
S21, when transmitting terminal sends Frame, data stored in the data buffer zone of transmitting terminal, and trigger the Frame sent in function transmission data buffer zone;
S22, when receiving terminal receives Frame, data are stored in the reception data buffer of receiving terminal.
4. a kind of communication data frame transmission method according to claim 2, it is characterized in that, described step S3 also comprises: after completing the first frame data transmission, if need carry out the second frame, the 3rd frame, n-th frame data transmission, then set second frame data transmission time base be T2=f (T1), the 3rd frame data transmission time base be f (T2)=f (f (T1)), n-th frame data transmission time base be Tn=f (f
n-1(T1)), and continue send the second frame, the 3rd frame, the n-th frame data to receiving terminal.
5. a kind of communication data frame transmission method according to claim 4, it is characterized in that, also comprise ack msg frame re-transmission step: after transmitting terminal sends Frame, if do not receive the ACK frame of receiving terminal feedback, then dataframe failure, and point out transmitting terminal to resend Frame.
6. a kind of communication data frame transmission method according to claim 4, it is characterized in that, also comprise sending times detecting step: when transmitting terminal resend Frame number of times exceed regulation maximum times time, then Communications failure, and point out transmitting terminal to re-establish communication.
7. a kind of communication data frame transmission method according to claim 6, is characterized in that, base generation step when also comprising transmission: after transmitting terminal and receiving terminal complete a complete data frame communication, then base when transmitting terminal regenerates new transmission; During the transmission of described generation, base is the random number of specified scope.
8. a kind of communication data frame transmission method according to claim 7, is characterized in that, described communication is both-way communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410302227.1A CN105281863B (en) | 2014-06-30 | 2014-06-30 | A kind of communication data frame transmission method |
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| CN201410302227.1A CN105281863B (en) | 2014-06-30 | 2014-06-30 | A kind of communication data frame transmission method |
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| CN105281863A true CN105281863A (en) | 2016-01-27 |
| CN105281863B CN105281863B (en) | 2019-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933092A (en) * | 2016-06-14 | 2016-09-07 | Tcl移动通信科技（宁波）有限公司 | Data transmission method and system based on circuit switching |
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| CN1350726A (en) * | 1999-04-22 | 2002-05-22 | 因芬尼昂技术股份公司 | Method for synchronising the frequency in a wireless telephone system, anddevice for carrying out said method |
| CN1411187A (en) * | 2001-09-25 | 2003-04-16 | 华为技术有限公司 | Link self adaptation method based on self adaptation coded modulation and automatic retransmission request |
| US20110045857A1 (en) * | 2007-11-27 | 2011-02-24 | Ineichen Alois | Method for transmitting data between a control unit and a plurality of remote i/o units of an automated installation |
| CN102244682A (en) * | 2011-07-19 | 2011-11-16 | 中国科学院软件研究所 | Covert communication method under cloud computing environment |
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2014
- 2014-06-30 CN CN201410302227.1A patent/CN105281863B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350726A (en) * | 1999-04-22 | 2002-05-22 | 因芬尼昂技术股份公司 | Method for synchronising the frequency in a wireless telephone system, anddevice for carrying out said method |
| CN1411187A (en) * | 2001-09-25 | 2003-04-16 | 华为技术有限公司 | Link self adaptation method based on self adaptation coded modulation and automatic retransmission request |
| US20110045857A1 (en) * | 2007-11-27 | 2011-02-24 | Ineichen Alois | Method for transmitting data between a control unit and a plurality of remote i/o units of an automated installation |
| CN102244682A (en) * | 2011-07-19 | 2011-11-16 | 中国科学院软件研究所 | Covert communication method under cloud computing environment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933092A (en) * | 2016-06-14 | 2016-09-07 | Tcl移动通信科技（宁波）有限公司 | Data transmission method and system based on circuit switching |
| CN105933092B (en) * | 2016-06-14 | 2020-04-07 | Tcl移动通信科技（宁波）有限公司 | Data transmission method and system based on circuit switching |
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| CN105281863B (en) | 2019-03-22 |
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