CN104219079A - Method and device for data transmission - Google Patents
Method and device for data transmission Download PDFInfo
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- CN104219079A CN104219079A CN201310218844.9A CN201310218844A CN104219079A CN 104219079 A CN104219079 A CN 104219079A CN 201310218844 A CN201310218844 A CN 201310218844A CN 104219079 A CN104219079 A CN 104219079A
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Abstract
An embodiment of the invention discloses a method and a device for data transmission. The method includes detecting whether a data transmission link contains a fault link or not; if not, transmitting communication data through the data transmission link; if yes, stopping using the fault link; compressing the communication data to enable quantity of the communication data after being compressed to be matched with transmission quantity of an available data link in the data link; using the available data link in the data transmission link to transmit the communication data after being compressed. The method and the device are suitable for processing faults of data communication links to guarantee reliability of faulted data communication links.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method of transfer of data and device.
Background technology
Along with the high speed development of integrated circuit technique, in computer system, the demand of the data link of two-forty is sharply increased, the requirement of the reliability of data link is also improved greatly simultaneously.In communication link system, the reliability that improves communication link is significant to the design of communication system.Adopt parallel link to carry out transfer of data, and corresponding link fault tolerant mechanism can effectively guarantee speed and the reliability of link transmission, the fault that minimizing brings because of hardware designs defect.
At present, when design parallel link, the main reliability that adopts following two kinds of solutions assurance parallel link: the one,, adopt redundant link, parallel link comprises normal transmission link and redundant link, when transmission link breaks down, with standby redundant link, substitute the link breaking down, with this, guarantee the reliability of parallel link transfer of data.The 2nd,, adopt link degradation transmission means, after one or more link occurs fault being detected, carry out faulty link location; The width of parallel link is reduced to original half, half parallel link at shielding faulty link place; If fault still detected, continue to reduce link width, until mask all faulty links.
In prior art, at least there are the following problems: in scheme one, from link circuit resource, utilize angle, during communication link fault-free, can cause the wasting of resources of redundant link; In order not waste link circuit resource, the quantity of redundant link is conditional, and therefore, when the quantity of faulty link surpasses redundant link, this scheme can not guarantee the reliability of communication link.In scheme two, although can guarantee the reliability of communication link, seriously reduced the transmission bandwidth of communication link, link circuit resource utilance is low.
Summary of the invention
A kind of method and device of transfer of data are provided, in the time of can solving parallel link and break down, cause the problem that parallel link reliability is low, improve reliability and the link circuit resource utilization ratio of parallel link.
First aspect, provides a kind of method of transfer of data, comprising:
Detect data transmission link and whether have faulty link;
If there is no described faulty link, by described data transmission link transport communication data;
If there is described faulty link, stop using described faulty link;
Described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match;
Use the communication data after the available link transmission compression in described data transmission link.
In the possible implementation of the first, described described communication data compressed and comprised:
The bit of take in described communication data is unit, and described communication data is compressed, and the bit number of communication data and the link number of described available link after compression are equated.
In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second, described method also comprises: if the bit number of the communication data after compression is less than the link number of described available link, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
Further, described method also comprises: if the bit number of the communication data after compression is greater than the link number of described available link, the described communication data before compression is divided into at least two sub-communication datas;
Sub-communication data described in each is compressed, the bit number of described sub-communication data and the link number of described available link after compression are equated.
In conjunction with the possible implementation of the second of the possible implementation of the first of first aspect, first aspect and first aspect, in the third possible implementation, described method also comprises:
To receiving terminal, send the notice of communication data compression; And/or
Described receiving terminal decompresses to the communication data through described available link transmission, recovers described communication data.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, the described communication data to the described available link transmission of process decompresses, and recovers described communication data and comprises:
The sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
Second aspect, provides a kind of device of transfer of data, comprising:
Whether detecting unit, there is faulty link for detection of data transmission link;
, for when not there is not described faulty link, by described data transmission link transport communication data in transmission unit;
Stop element, for when there is described faulty link, stops using described faulty link;
Compression unit, for described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match;
Described transmission unit is also for being used the communication data after the available link transmission of described data transmission link is compressed.
In the possible implementation of the first, described compression unit specifically for: the bit of take in described communication data is unit, described communication data is compressed, the bit number of communication data and the link number of described available link after compression are equated.
In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, described device also comprises: adding device, while being less than the link number of described available link for the bit number of the communication data after compressing, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
Further, described device also comprises:
Cutting unit, while being greater than the link number of described available link for the bit number of communication data after compression, is divided at least two sub-communication datas by the described communication data before compression;
Described compression unit also for: sub-communication data described in each is compressed, make compression after the bit number of described sub-communication data and the link number of described available link equate.
The possible implementation of the second in conjunction with the possible implementation of the first of second aspect, second aspect and second aspect, in the third possible implementation, described device also comprises: transmitting element, for send the notice of communication data compression to receiving terminal; And/or
Recovery unit, decompresses to the communication data through described available link transmission for described receiving terminal, recovers described communication data.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described recovery unit specifically for:
The sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
Compared with prior art, the embodiment of the present invention, after data transmission link being detected and breaking down, will exist the link of fault to stop using; Communication data is compressed, make the data consistent of the number of bits of communication data and the available link of data transmission link; By available link, transmit the communication data after compression; Communication data through described available link transmission is decompressed, recover described communication data.Solved the problem that after data transmission link breaks down, reliability reduces.When data transmission link breaks down, data are compressed, it is mated with remaining non-faulty link.Thereby in the situation that not using additional chain circuit resource, guarantee the high reliability of data transmission link, and guarantee that link circuit resource maximizes the use.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram that Fig. 1 provides for the embodiment of the present invention one;
The method flow diagram that Fig. 2 provides for the embodiment of the present invention two;
The apparatus structure schematic diagram that Fig. 3, Fig. 4 provide for the embodiment of the present invention three;
The apparatus structure schematic diagram that Fig. 5, Fig. 6 provide for the embodiment of the present invention four.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
For making the advantage of technical solution of the present invention clearer, below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment mono-
The present embodiment provides a kind of method of transfer of data, and as shown in Figure 1, described method comprises:
101, detect data transmission link and whether have faulty link.
102, if there is no described faulty link, by described data transmission link transport communication data.
If 103 exist described faulty link, stop using described faulty link.
104, described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match.
105, use the communication data after the available link transmission compression in described data transmission link.
Wherein, described described communication data compressed and comprised:
The bit of take in described communication data is unit, and described communication data is compressed, and the bit number of communication data and the link number of described available link after compression are equated.For example, data transmission link comprises 10 parallel links, wherein there are 2 links to occur fault, so after faulty link being detected, the follow-up data of transmission that need are compressed, the bit of tentation data is 10, for example, 1111100000, in order to make these data, can transmit by remaining parallel link, wherein a kind of compression method is using the number of consecutive identical bit and content as a kind of method for expressing, above-mentioned data can be expressed as 10111010 (01 decimal system 5 of binary one, represent 5150, 51, 5 0), just in time can transmit by 8 parallel links.If available parallel link is 9, needing is so invalid bit of 10111010 interpolation.It should be noted that, above be only two kinds of numerous data compression methods for example, the embodiment of the present invention does not limit used data compression method.
Optionally, described method also comprises:
If the bit number of the communication data after compression is less than the link number of described available link, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
Optionally, described method also comprises:
If the bit number of the communication data after compression is greater than the link number of described available link, the described communication data before compression is divided into at least two sub-communication datas;
Sub-communication data described in each is compressed, the bit number of described sub-communication data and the link number of described available link after compression are equated.
Optionally, described method also comprises:
If the bit number of the communication data after compression is greater than the link number of described available link, the described communication data after compression is divided into at least two sub-communication datas; Sub-communication data described in each is compressed, the bit number of described sub-communication data and the link number of described available link after compression are equated.
Further, described method also comprises: the notice that sends communication data compression to receiving terminal; And/or
Described receiving terminal decompresses to the communication data through described available link transmission, recovers described communication data.
Optionally, if the described communication data before compression is divided into at least two sub-communication datas before step 105, recovering described communication data also comprises: the sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
Compared with prior art, the embodiment of the present invention, after data transmission link being detected and breaking down, will exist the link of fault to stop using; Communication data is compressed, make the data consistent of the number of bits of communication data and the available link of data transmission link; By available link, transmit the communication data after compression; Communication data through described available link transmission is decompressed, recover described communication data.Solved the problem that after data transmission link breaks down, reliability reduces.When data transmission link breaks down, data are compressed, it is mated with remaining non-faulty link.Thereby in the situation that not using additional chain circuit resource, guarantee the high reliability of data transmission link, and guarantee that link circuit resource maximizes the use.
Embodiment bis-
The present embodiment provides a kind of method of transfer of data, and as shown in Figure 2, described method comprises:
201, data transmission link is detected, judge whether to exist faulty link, if there is faulty link, execution step 202; If there is not faulty link, execution step 210.
202, by the faulty link shielding detecting, stop using.
203, according to the available parallel link of residue, communication data is compressed.
Concrete, the bit of take in compression process in described communication data is unit, and described communication data is compressed, and the bit number of communication data and the link number of described available link after compression are equated.For example, data transmission link comprises 10 parallel links, wherein there are 2 links to occur fault, so after faulty link being detected, the follow-up data of transmission that need are compressed, the bit of tentation data is 10, for example, 1111100000, in order to make these data, can transmit by remaining parallel link, wherein compression method is that above-mentioned data can be expressed as 10111010, just in time can transmit by 8 parallel links using the number of consecutive identical bit and content as an a kind of method for expressing.If available parallel link is 9, needing is so invalid bit of 10111010 interpolation.It should be noted that, above be only two kinds of numerous data compression methods for example, the embodiment of the present invention does not limit used data compression method.
204, whether the number of bits of the communication data after judgement compression equates with the number that remains available parallel link, if equate, and execution step 208, if unequal, execution step 205.
205, whether the number of bits of the communication data after judgement compression is greater than the number of the available parallel link of residue, if be greater than the number of the available parallel link of residue, execution step 206; If be less than the number of the available parallel link of residue, execution step 207.
206, the communication data after compression is cut apart, and the communication data after cutting apart is compressed respectively, the number of bits of the data after cutting apart is equated with the number that remains available parallel link.
After execution step 206, execution step 208.
Optionally, in this step, also can cut apart the communication data before compression, and then data are compressed, can reach identical technique effect equally.
207,, for the communication data after compression adds invalid bit, the number of bits of the communication data after compression is equated with the number that remains available parallel link.
After execution step 207, execution step 208.
208, by the available parallel link transport communication data of residue.
209, the communication data being transmitted is decompressed, recover initial-communication data.
It should be noted that, in the branch of step 206-208-209, after the communication data being transmitted is decompressed, also need the data of cutting apart to merge, and then recover initial-communication data.
210, by data transmission link transport communication data.
Compared with prior art, the embodiment of the present invention, after data transmission link being detected and breaking down, will exist the link of fault to stop using; Communication data is compressed, make the data consistent of the number of bits of communication data and the available link of data transmission link; By available link, transmit the communication data after compression; Communication data through described available link transmission is decompressed, recover described communication data.Solved the problem that after data transmission link breaks down, reliability reduces.When data transmission link breaks down, data are compressed, it is mated with remaining non-faulty link.Thereby in the situation that not using additional chain circuit resource, guarantee the high reliability of data transmission link, and guarantee that link circuit resource maximizes the use.
Embodiment tri-
The present embodiment provides a kind of device 30 of transfer of data, and as shown in Figure 3, described device 30 comprises:
Whether detecting unit 31, there is faulty link for detection of data transmission link;
, for when not there is not described faulty link, by described data transmission link transport communication data in transmission unit 32;
Stop element 33, for when there is described faulty link, stops using described faulty link;
Compression unit 34, for described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match;
Described transmission unit 32 is also for being used the communication data after the available link transmission of described data transmission link is compressed;
Further, as shown in Figure 4, described device 30 can also comprise:
Transmitting element 35, for sending the notice of communication data compression to receiving terminal; And/or
Recovery unit 36, decompresses to the communication data through described available link transmission for described receiving terminal, recovers described communication data.
Wherein, described recovery unit 36 is specifically for the sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, and obtains described communication data.
Further, described compression unit 34 specifically for: the bit of take in described communication data is unit, and described communication data is compressed, make compression after the bit number of communication data and the link number of described available link equate.
Further, as shown in Figure 4, described device 30 can also comprise:
Adding device 37, while being less than the link number of described available link for the bit number of the communication data after compressing, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
Further, as shown in Figure 4, described device 30 can also comprise:
Cutting unit 38, while being greater than the link number of described available link for the bit number of communication data after compression, is divided at least two sub-communication datas by the described communication data before compression;
Described compression unit 34 also for: sub-communication data described in each is compressed, make compression after the bit number of described sub-communication data and the link number of described available link equate.
Compared with prior art, the embodiment of the present invention, after data transmission link being detected and breaking down, will exist the link of fault to stop using; Communication data is compressed, make the data consistent of the number of bits of communication data and the available link of data transmission link; By available link, transmit the communication data after compression; Communication data through described available link transmission is decompressed, recover described communication data.Solved the problem that after data transmission link breaks down, reliability reduces.When data transmission link breaks down, data are compressed, it is mated with remaining non-faulty link.Thereby in the situation that not using additional chain circuit resource, guarantee the high reliability of data transmission link, and guarantee that link circuit resource maximizes the use.
Embodiment tetra-
The present embodiment provides a kind of device 40 of transfer of data, and as shown in Figure 5, described device 40 comprises:
Whether processor 41, there is faulty link for detection of data transmission link; And, for when not there is not described faulty link, by described data transmission link transport communication data; And, for when there is described faulty link, stop using described faulty link; And, for described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match; And, for using the communication data after the available link transmission of described data transmission link is compressed.
Further, described processor 41 specifically for: the bit of take in described communication data is unit, and described communication data is compressed, make compression after the bit number of communication data and the link number of described available link equate.
Further, described processor 41 also for:
When the bit number of the communication data after compression is less than the link number of described available link, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
Further, described processor 41 also for:
When the bit number of the communication data after compression is greater than the link number of described available link, the described communication data before compression is divided into at least two sub-communication datas; Sub-communication data described in each is compressed, the bit number of described sub-communication data and the link number of described available link after compression are equated.
Further, as shown in Figure 6, described device 40 can also comprise:
Transmitter 42, for sending the notice of communication data compression to receiving terminal; And/or
Described processor 41 also decompresses to the communication data through described available link transmission for described receiving terminal, recovers described communication data.
Further, described processor 41 specifically also for: the sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
The workflow of the device 40 of the transfer of data that the embodiment of the present invention provides please refer to the description of previous methods embodiment, here no longer repeats.
Compared with prior art, the embodiment of the present invention, after data transmission link being detected and breaking down, will exist the link of fault to stop using; Communication data is compressed, make the data consistent of the number of bits of communication data and the available link of data transmission link; By available link, transmit the communication data after compression; Communication data through described available link transmission is decompressed, recover described communication data.Solved the problem that after data transmission link breaks down, reliability reduces.When data transmission link breaks down, data are compressed, it is mated with remaining non-faulty link.Thereby in the situation that not using additional chain circuit resource, guarantee the high reliability of data transmission link, and guarantee that link circuit resource maximizes the use.
The above-mentioned embodiment of the method providing can be provided the device of the transfer of data that the embodiment of the present invention provides, and concrete function is realized and referred to the explanation in embodiment of the method, does not repeat them here.The method of the transfer of data that the embodiment of the present invention provides and device go for the fault of handle data communication link, the reliability of the data link that assurance is broken down, but be not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. a method for transfer of data, is characterized in that, comprising:
Detect data transmission link and whether have faulty link;
If there is no described faulty link, by described data transmission link transport communication data;
If there is described faulty link, stop using described faulty link;
Described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match;
Use the communication data after the available link transmission compression in described data transmission link.
2. method according to claim 1, is characterized in that, described described communication data is compressed and comprised:
The bit of take in described communication data is unit, and described communication data is compressed, and the bit number of communication data and the link number of described available link after compression are equated.
3. method according to claim 2, is characterized in that, described method also comprises:
If the bit number of the communication data after compression is less than the link number of described available link, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
4. method according to claim 2, is characterized in that, described method also comprises:
If the bit number of the communication data after compression is greater than the link number of described available link, the described communication data before compression is divided into at least two sub-communication datas;
Sub-communication data described in each is compressed, the bit number of described sub-communication data and the link number of described available link after compression are equated.
5. according to the either method described in claim 1-4, it is characterized in that, described method also comprises:
To receiving terminal, send the notice of communication data compression; And/or
Described receiving terminal decompresses to the communication data through described available link transmission, recovers described communication data.
6. method according to claim 5, is characterized in that, the described communication data to the described available link transmission of process decompresses, and recovers described communication data and comprises:
The sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
7. a device for transfer of data, is characterized in that, comprising:
Whether detecting unit, there is faulty link for detection of data transmission link;
, for when not there is not described faulty link, by described data transmission link transport communication data in transmission unit;
Stop element, for when there is described faulty link, stops using described faulty link;
Compression unit, for described communication data is compressed, make compression after amount of communication data and the transmission quantity of the data available link in described data link match;
Described transmission unit is also for being used the communication data after the available link transmission of described data transmission link is compressed.
8. device according to claim 7, it is characterized in that, described compression unit specifically for: the bit of take in described communication data is unit, and described communication data is compressed, make compression after the bit number of communication data and the link number of described available link equate.
9. device according to claim 8, is characterized in that, described device also comprises:
Adding device, while being less than the link number of described available link for the bit number of the communication data after compressing, in communication data after described compression, add invalid bit, the bit number of communication data and the link number of described available link after compression are equated.
10. device according to claim 8, is characterized in that, described device also comprises:
Cutting unit, while being greater than the link number of described available link for the bit number of communication data after compression, is divided at least two sub-communication datas by the described communication data before compression;
Described compression unit also for: sub-communication data described in each is compressed, make compression after the bit number of described sub-communication data and the link number of described available link equate.
11. according to the arbitrary device described in claim 7-10, it is characterized in that, described device also comprises: transmitting element, for send the notice of communication data compression to receiving terminal; And/or
Recovery unit, decompresses to the communication data through described available link transmission for described receiving terminal, recovers described communication data.
12. devices according to claim 11, is characterized in that, described recovery unit specifically for:
The sub-communication data receiving is decompressed, and the described sub-communication data decompressing out is merged, obtain described communication data.
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| CN201310218844.9A CN104219079A (en) | 2013-06-04 | 2013-06-04 | Method and device for data transmission |
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| CN201310218844.9A CN104219079A (en) | 2013-06-04 | 2013-06-04 | Method and device for data transmission |
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