CN104579579B - A kind of big data package transmission method and system - Google Patents
A kind of big data package transmission method and system Download PDFInfo
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- CN104579579B CN104579579B CN201510050832.9A CN201510050832A CN104579579B CN 104579579 B CN104579579 B CN 104579579B CN 201510050832 A CN201510050832 A CN 201510050832A CN 104579579 B CN104579579 B CN 104579579B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 158
- 238000012937 correction Methods 0.000 claims abstract description 114
- 241000209094 Oryza Species 0.000 claims abstract description 85
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 85
- 235000021186 dishes Nutrition 0.000 claims abstract description 85
- 235000009566 rice Nutrition 0.000 claims abstract description 85
- 238000012795 verification Methods 0.000 claims abstract description 44
- 230000007774 longterm Effects 0.000 claims description 19
- 230000002708 enhancing effect Effects 0.000 claims description 11
- 230000011218 segmentation Effects 0.000 claims description 8
- 208000011580 syndromic disease Diseases 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 238000004590 computer program Methods 0.000 description 8
- 238000010295 mobile communication Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 125000003729 nucleotide group Chemical group 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention is suitable for the communications field, provide a kind of big data package transmission method and system, this method comprises: source data packet is divided into a data sectional by the first communication node, after carrying out Error Correction of Coding respectively, the formation a first attached bag that passes is sent to the second communication node after carrying out punctured operation according to code rate R；Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, if decoding failure, feedback reception failure information；First communication node receives the reception failure information, b Error Correction of Coding attached bag is selected from a Error Correction of Coding attached bag according to scheduled selection mode, b re-transmission attached bag is generated based on the b Error Correction of Coding attached bag, xor operation is carried out to the b re-transmission attached bag, form a verification attached bag, the b re-transmission attached bag forms to retransmit with the verification attached bag and eat dishes without rice or wine data packet and to send.The present invention can be improved data packet transmission performance and the code efficiency of verification attached bag can be improved.
Description
Technical field
The invention belongs to the communications field more particularly to a kind of big data package transmission method and systems.
Background technique
With universal and various businesses the development of data network, such as video, net fun, video calling are watched,
Need a large amount of network capacity.Under normal conditions, the data packet of these business generation is bigger, due to biggish data packet
Decoding complexity is very high, and relatively low to the tolerance of noisy channels transmission situation, therefore in practical communication, each data packet
It is further partitioned into several smaller channel coding code blocks (i.e. code block segmentation) again to be transmitted, such channel decoding module phase
It is smaller to complexity and higher to the tolerance of error bit.
In order to improve the service quality of communication system, communication underlying protocol needs support HARQ (Hybrid Auto
Repeat Request, hybrid automatic repeat-request) mechanism.I.e. if physical layer data packet error of transmission, sent by repeating
Physical layer data packet, to guarantee the reliable transmission of data.It can be diffused into upper-layer protocol, cause more to avoid error of transmission in this way
Big transport overhead wastes valuable transfer resource.For example, in existing 3gpp LTE (Long Term Evolution, length
Phase evolution agreement) in, the maximum retransmission of HARQ is 4 times, and retransmitting data packet can be merged or steadily increase redundancy using pursuit
Coding mode generates.
The main application scenarios and demand of 5th Generation Mobile Communication System include terminal direct connection communication D2D (Device to
Device), Internet of Things Network Communication MMC (Massive Machine Communication), ultra dense degree network communication UDN (Ultra
Denstiy Network), mobile network communication MN (Moving Network) and super reliable communication URN (Ultra Reliable
Network).In order to meet new business demand, the link enhancing technology in the 5th following Generation Mobile Communication System needs full
Sufficient low latency, high-throughput feature.But existing LTE is merged based on pursuit or the HARQ retransmission mechanism of steadily increase redundancy, sends out every time
Sending end can not judge the case where specific attached bag receives success or not in data packet of eating dishes without rice or wine that receiving end receives, and between attached bag
There is no any protection technique, cause bigger air interface transmission time delay, is unfavorable for meeting the business need of future mobile communication system
It asks.
Summary of the invention
The purpose of the present invention is to provide a kind of big data package transmission method and systems, to solve the prior art due to LTE
Merged based on pursuit or the HARQ retransmission mechanism of steadily increase redundancy, each transmitting terminal can not judge the data of eating dishes without rice or wine that receiving end receives
Specific attached bag receives the case where success or not in packet, and does not have any protection technique between attached bag, causes bigger eat dishes without rice or wine
The problem of propagation delay time.
On the one hand, the embodiment of the invention provides a kind of big data package transmission methods, which comprises
Source data packet is divided into a data sectional by the first communication node, carries out error correction volume respectively to a data sectionals
A Error Correction of Coding attached bag is formed after code, 1 head of formation passes son after each Error Correction of Coding attached bag carries out punctured operation according to code rate R
Packet constitutes head by a first biography attached bags and passes data packet of eating dishes without rice or wine, and wherein a is the integer greater than 1, and R is greater than 0.5 less than or equal to 1；
First communication node sends the first data packet of eating dishes without rice or wine that passes to the second communication node；
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, if decoding failure, to institute
State the first communication node feedback reception failure information；
First communication node receives the reception failure information, and first communication node is according to scheduled selecting party
Formula selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, generates b weight based on the b Error Correction of Coding attached bag
Attached bag is passed, xor operation is carried out to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the school
It tests attached bag and is formed to retransmit and eat dishes without rice or wine data packet and to send, wherein b is the positive integer less than or equal to a.
With reference to first aspect, in the first possible embodiment of first aspect, first communication node is according to pre-
Fixed selection mode selects b Error Correction of Coding attached bag step from a Error Correction of Coding attached bag are as follows:
Second communication node is into the first communication node feedback reception failure information, including a data of instruction
C data subsection receiing success in segmentation；
First communication node selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, and the b error correction is compiled
It does not include the corresponding Error Correction of Coding attached bag of the c data sectional in numeral packet, the value of b is less than or equal to (a-c).
With reference to first aspect, in second of possible embodiment of first aspect, first communication node is according to pre-
Fixed selection mode selects b Error Correction of Coding attached bag step from a Error Correction of Coding attached bag are as follows:
Second communication node generates reception failure information according to long term evolution agreement and feeds back to the first communication node, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, the value of the b is equal to a-1.
With reference to first aspect, in the third possible embodiment of first aspect, first communication node is according to pre-
Fixed selection mode selects b Error Correction of Coding attached bag step from a Error Correction of Coding attached bag are as follows:
Second communication node generates reception failure information according to long term evolution agreement and feeds back to the first communication node, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, the value of the b is equal to a, and
The each re-transmission attached bag retransmitted in attached bag to b carries out bit selection, so that the length of at least d re-transmission attached bag is equal to | l*
(a-1)/(a-2) |, wherein l is the length for verifying attached bag.
With reference to first aspect, in the 4th kind of possible embodiment of first aspect, the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, then passes through
The verification attached bag and other re-transmission attached bags carry out xor operation, obtain an enhancer corresponding with reception failure re-transmission attached bag
Packet retransmits the data sectional content that attached bag carries by decoding to the enhancing attached bag to obtain reception failure.
With reference to first aspect, in the 5th kind of possible embodiment of first aspect, the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, then passes through
The verification attached bag and other re-transmission attached bags carry out xor operation, obtain an enhancer corresponding with reception failure re-transmission attached bag
Packet, is decoded by being added to the enhancing attached bag with reception failure re-transmission attached bag, retransmits son to obtain reception failure
Wrap the data sectional content carried.
With reference to first aspect, in the 6th kind of possible embodiment of first aspect, the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, and verifies
Attached bag reception failure, then second communication node thinks that the re-transmission is eated dishes without rice or wine data packet reception failure.
With reference to first aspect, in the 7th kind of possible embodiment of first aspect, first communication node is according to pre-
Fixed selection mode selects b Error Correction of Coding attached bag step from a Error Correction of Coding attached bag are as follows:
First communication node according to random selection, according to preset lookup table mode from a Error Correction of Coding attached bag
B Error Correction of Coding attached bag of middle selection.
With reference to first aspect, in the 8th kind of possible embodiment of first aspect, the ratio for retransmitting data packet of eating dishes without rice or wine
Special number is less than the first bit number for passing data packet of eating dishes without rice or wine.
Second aspect, the invention proposes a kind of big data packet transmission system, the system comprises:
Segmentation module, for source data packet to be divided into a data sectional by the first communication node, to a data point
Section forms a Error Correction of Coding attached bag after carrying out Error Correction of Coding respectively, and each Error Correction of Coding attached bag carries out punctured operation according to code rate R
1 head of formation passes attached bag afterwards, constitutes head by a first biography attached bags and passes data packet of eating dishes without rice or wine, wherein a is the integer greater than 1, and R is big
It is less than or equal to 1 in 0.5；
Sending module, for sending the first data packet of eating dishes without rice or wine that passes to the second communication node by first communication node；
Feedback module is decoded, eats dishes without rice or wine data packet and to be decoded for receiving first pass by second communication node,
If decoding failure, to the first communication node feedback reception failure information；
Sending module is verified, for receiving the reception failure information, first communication by first communication node
Node selects b Error Correction of Coding attached bag according to scheduled selection mode from a Error Correction of Coding attached bag, based on the b
Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification attached bag, institute
It states b re-transmission attached bag and the verification attached bag and is formed to retransmit and eat dishes without rice or wine data packet and to send, wherein b is just whole less than or equal to a
Number.
In the present invention, by carrying out xor operation to each re-transmission attached bag, so that there are one between all re-transmission attached bags
Fixed association can use the association in receiving end and be decoded, data packet transmission performance can be improved.It is entangled by getting rid of
The code efficiency of verification attached bag can be improved, so as to preferably adapt to future in partial bit in miscoding subdata packet
In ultrahigh speed communication system, the communication requirement of data source very greatly, more than breakout code number of blocks.
Detailed description of the invention
Fig. 1 is the implementation flow chart of big data packet transmission provided in an embodiment of the present invention；
Fig. 2 is that retransmission window data packet provided in an embodiment of the present invention generates schematic diagram；
Fig. 3 is re-transmission attached bag successive bits provided in an embodiment of the present invention delete position schematic diagram；
Fig. 4 is re-transmission attached bag discrete bits provided in an embodiment of the present invention delete position schematic diagram；
Fig. 5 is the structural schematic diagram of big data packet transmission system provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Biggish source data packet is passed through code block segmentation at multiple data sectionals (subdata packet), then to these by the present invention
Data sectional carries out channel error correction coding, then, to xor operation is carried out between Error Correction of Coding code block, is generating in retransmission processes
A small amount of verification attached bag, the re-transmission after coding to be sent is obtained by bit selection operation method are eated dishes without rice or wine data packet, to have
Effect reduces air interface transmission time delay, meets the business demand of future mobile communication system.
Big data package transmission method of the invention is as shown in Figure 1, at least include the following steps:
Step 102, the first communication node carries out code block segmentation to the source data packet for needing to be sent to the second communication node, obtains
To a data sectional, a is greater than 1 integer；To each data sectional in a data sectional, cyclic redundancy school is added
Test (Cyclic Redundancy Check, CRC) sequence；Error correction is carried out to each data sectional for being added to CRC sequence nucleotide sequence
Coding, obtains a Error Correction of Coding attached bag；Each Error Correction of Coding attached bag forms 1 first biography after carrying out punctured operation according to code rate R
Packet, R are greater than 0.5 and are less than or equal to 1；The described a first attached bag composition head that passes passes data packet of eating dishes without rice or wine；
Step 104, the first communication node sends the first data packet of eating dishes without rice or wine that passes to the second communication node；
Step 106, the second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, if decoding failure,
To the first communication node feedback reception failure information；
Step 108, first communication node receives the reception failure information, and first communication node is according to specific
Selection mode selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, raw based on the b Error Correction of Coding attached bag
At b re-transmission attached bag, xor operation is carried out to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag
It is formed with the verification attached bag and retransmits data packet of eating dishes without rice or wine, wherein b is the positive integer less than or equal to a.
Further illustrate the present invention below by specific embodiment, it is to be appreciated that the first communication node in embodiment and
Second communication node can be base station and terminal or terminal and base station respectively.
Embodiment one
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, and Xiang Suoshu first is communicated
Node feeding back reception failure information indicates the c data subsection receiing success in a data sectional, and wherein the value of c is big
It is less than a in 0.
First communication node receives the reception failure information, and first communication node is according to specific selection mode from institute
B Error Correction of Coding attached bag of selection in a Error Correction of Coding attached bag is stated, does not include the c data in the b Error Correction of Coding attached bag
It is segmented corresponding Error Correction of Coding attached bag, the value of b is less than or equal to (a-c), generates b weight based on the b Error Correction of Coding attached bag
Attached bag is passed, xor operation is carried out to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the school
It tests attached bag formation and retransmits data packet of eating dishes without rice or wine, Fig. 2 gives the generation schematic diagram for retransmitting data packet of eating dishes without rice or wine.
Embodiment two
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, and decoding failure is assisted according to long term evolution
View generates reception failure information and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, b's
Value is equal to (a -1), it is preferable that the ad hoc fashion is to randomly choose from a Error Correction of Coding attached bag or according to tabling look-up
Mode selects b Error Correction of Coding attached bag (table has been set in advance), generates b weight based on the b Error Correction of Coding attached bag
Attached bag is passed, xor operation is carried out to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the school
It tests attached bag formation and retransmits data packet of eating dishes without rice or wine.
Embodiment three
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, and decoding failure is assisted according to long term evolution
View generates reception failure information and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, at this time
B=a (can be understood as whole selection modes), and first communication node is based on b Error Correction of Coding attached bag and generates b re-transmission
Packet carries out xor operation to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the syndrome
Packet formed retransmit eat dishes without rice or wine data packet when, need to b retransmit attached bag in each re-transmission attached bag carry out bit delete operation, deletion
The length of at least d re-transmission attached bag is equal to and (is rounded (length * (a-2)/(a-1) of the verification attached bag) downwards) afterwards,
Namely | l* (a-1)/(a-2) |, wherein l is the length for verifying attached bag.Wherein, the value of d is less than or equal to b, b re-transmission
The position of each re-transmission attached bag deleted bit in packet is different, and the position can be continuously (as shown in Fig. 2, white
Color part is to be deleted bit position, and grey parts are reservation bit position) or it is discrete (as shown in figure 3, white portion is quilt
Deleted bit position, grey parts are reservation bit position).The purpose for the arrangement is that making the length for retransmitting data packet of eating dishes without rice or wine as far as possible
Data packet of eating dishes without rice or wine is passed less than or equal to head, just redundancy overhead is brought after introducing verification attached bag in face, guarantees the relatively long-term evolution association of scheme
Discuss the fairness of existing program.
Example IV
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
Breath, and feed back to first communication node, wherein data packet is passed headed by the content that the reception failure information carries receives mistake
It loses but does not indicate it is which first biography attached bag reception failure, or head passes data packet reception failure and which first biography attached bag reception instruction is
The first of partial acceptance failure in failure, or the first first biography attached bag for passing data packet reception failure and only indicating all reception failures passes
Attached bag, it is preferable that the different type of the reception failure information corresponds to different feedback resources, the feedback resources can from when
Domain, and/or frequency domain, and/or code domain are distinguished, such as different types corresponds to different time-domain resources or different frequency domain resources,
Or different CDMA spreads code domain resource.
First communication node receives the reception failure information, and first communication node is according to the reception failure information
The content of offer selects b Error Correction of Coding attached bag according to specific selection mode from a Error Correction of Coding attached bag, it is preferable that
The ad hoc fashion is the random selection or sub according to lookup table mode b Error Correction of Coding of selection from a Error Correction of Coding attached bag
Packet, generates b re-transmission attached bag based on the b Error Correction of Coding attached bag, carries out xor operation to the b re-transmission attached bag, is formed
One verification attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine.
Embodiment five
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, preferably
Ground, the ad hoc fashion are the modes or described first that first communication node and second communication node are arranged in advance
Communication node notifies second communication node by control signaling, generates b re-transmission based on the b Error Correction of Coding attached bag
Attached bag carries out xor operation to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the verification
Attached bag, which is formed, retransmits data packet of eating dishes without rice or wine.
Embodiment six
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, be based on
The b Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification
Attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine.
The reception of second communication node is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, referred to as receives and loses
Re-transmission attached bag is lost, then xor operation is carried out by the verification attached bag and other re-transmission attached bags, obtains one and reception failure weight
The corresponding enhancing attached bag of attached bag is passed, attempts to obtain reception failure re-transmission attached bag carrying by decoding the enhancing attached bag
The data sectional content, it is preferable that described other retransmit attached bags and receive success, and the verification attached bag in this case
It receives successfully.
Embodiment seven
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, be based on
The b Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification
Attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine.
The reception of second communication node is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, referred to as receives and loses
Re-transmission attached bag is lost, then xor operation is carried out by the verification attached bag and other re-transmission attached bags, obtains one and reception failure weight
The corresponding enhancing attached bag of attached bag is passed, is tasted by being added to the enhancing attached bag to be decoded with reception failure re-transmission attached bag
Examination obtains reception failure and retransmits the data sectional content that attached bag carries, it is preferable that described other retransmit son in this case
At least one attached bag reception failure in packet, and the verification attached bag receives successfully.
Embodiment eight
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, be based on
The b Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification
Attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine.
The reception of second communication node is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, and verifies attached bag
Reception failure, then second communication node thinks that the re-transmission is eated dishes without rice or wine data packet reception failure.
Embodiment nine
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, be based on
The b Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification
Attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine, it is preferable that retransmits data packet packet of eating dishes without rice or wine
Containing the verification attached bag for repeating e times, e is the integer that value is greater than 1, the advantage of doing so is that increasing verification attached bag to channel burst mistake
Tolerance accidentally increases the second communication node and the probability for retransmitting data packet of eating dishes without rice or wine is successfully decoded.
Embodiment ten
First communication node forms concurrent comprising a first first biography for passing attached bag data packet of eating dishes without rice or wine according to long term evolution agreement
It send.
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, decoding failure, generates reception failure letter
It ceases and feeds back to first communication node, it is preferable that the feedback resources index used eats dishes without rice or wine to connect in data packet with first pass
Successfully there are corresponding relationships for first biography attached bag or the first biography attached bag of reception failure for receipts, and the corresponding relationship is by first communication section
Point and the second communication node offered obtain, for example, if being first biography 1 reception failure of attached bag, then select feedback resources rope
Draw the 1 transmission reception failure information, pass attached bag n reception failure if it is head, then selects to connect described in feedback resources index n transmission
Receive failure information.
First communication node receives the reception failure information, can not know which specific data sectional receives successfully, institute
It states the first communication node and selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag according to specific selection mode, be based on
The b Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification
Attached bag, the b re-transmission attached bag and the verification attached bag, which are formed, retransmits data packet of eating dishes without rice or wine.
The method proposed by this patent, the number of retransmissions of HARQ reduce 60% than long term evolution agreement, are effectively reduced
Propagation delay of eating dishes without rice or wine, while the handling capacity of system is increased, it can meet the business of the 5th Generation Mobile Communication System well
Demand.
Embodiment 11:
Fig. 5 shows the structural schematic diagram of big data Transmission system provided in an embodiment of the present invention, big number of the present invention
Include: according to Transmission system
Segmentation module 501, for source data packet to be divided into a data sectional by the first communication node, to a data
Segmentation forms a Error Correction of Coding attached bag after carrying out Error Correction of Coding respectively, and each Error Correction of Coding attached bag carries out punctured behaviour according to code rate R
1 head of formation passes attached bag after work, constitutes head by a first biography attached bags and passes data packet of eating dishes without rice or wine, wherein a is the integer greater than 1, R
It is less than or equal to 1 greater than 0.5；
Sending module 502, for sending the first data packet of eating dishes without rice or wine that passes to the second communication section by first communication node
Point；
Feedback module 503 is decoded, eats dishes without rice or wine data packet and to be translated for receiving first pass by second communication node
Code, if decoding failure, to the first communication node feedback reception failure information；
Sending module 504 is verified, for receiving the reception failure information by first communication node, described first is logical
Believe that node selects b Error Correction of Coding attached bag according to scheduled selection mode from a Error Correction of Coding attached bag, is based on the b
A Error Correction of Coding attached bag generates b re-transmission attached bag, carries out xor operation to the b re-transmission attached bag, forms a verification attached bag,
The b re-transmission attached bag and the verification attached bag form to retransmit and eat dishes without rice or wine data packet and to send, wherein b is just whole less than or equal to a
Number.
Big data Transmission system described in the embodiment of the present invention is corresponding with above-mentioned big data transmission method, is not repeated herein
It repeats.
If support described in the embodiment of the present invention improves the method and apparatus of data packet transmission performance with software function module
Form realize and when sold or used as an independent product, also can store in a computer-readable storage medium
In.Based on this understanding, it should be understood by those skilled in the art that, embodiments herein can provide for method, system or
Computer program product.Therefore, the application can be used complete hardware embodiment, complete software embodiment or in conjunction with software and firmly
The form of embodiment in terms of part.Moreover, it wherein includes computer available programs generation that the application, which can be used in one or more,
The form for the computer program product implemented in the computer-usable storage medium of code, the storage medium includes but is not limited to U
Disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), magnetic disk storage, CD-ROM, optical memory etc..
The application be according to the method for the embodiment of the present application, the flow chart of equipment (system) and computer program product and/
Or block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/
Or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions
To general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one
A machine so that by the instruction that the processor of computer or other programmable data processing devices executes generate for realizing
The device for the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Correspondingly, the embodiment of the present invention also provides a kind of computer storage medium, wherein it is stored with computer program, the meter
Calculation machine program is used to execute the method and apparatus that the support of the embodiment of the present invention improves data packet transmission performance.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of big data package transmission method, which is characterized in that the described method includes:
Source data packet is divided into a data sectional by the first communication node, after carrying out Error Correction of Coding respectively to a data sectionals
A Error Correction of Coding attached bag is formed, each Error Correction of Coding attached bag forms 1 first biography attached bag after carrying out punctured operation according to code rate R, by
The a first attached bag composition head that pass pass data packet of eating dishes without rice or wine, and wherein a is the integer greater than 1, and R is greater than 0.5 less than or equal to 1；
First communication node sends the first data packet of eating dishes without rice or wine that passes to the second communication node；
Second communication node receives first pass and eats dishes without rice or wine data packet and to be decoded, if decoding failure, to described the
One communication node feedback reception failure information；
First communication node receives the reception failure information, first communication node according to scheduled selection mode from
B Error Correction of Coding attached bag is selected in a Error Correction of Coding attached bag, and b re-transmission is generated based on the b Error Correction of Coding attached bag
Packet carries out xor operation to the b re-transmission attached bag, forms a verification attached bag, the b re-transmission attached bag and the syndrome
Packet forms to retransmit and eats dishes without rice or wine data packet and to send, wherein retransmitting data packet of eating dishes without rice or wine includes the verification attached bag for repeating e time, and e is big for value
In 1 integer, b is the positive integer less than or equal to a, passes data packet reception failure headed by the content that the reception failure information carries
Which but do not indicate to be first biography attached bag reception failure, or head passes data packet reception failure and instruction is which first biography attached bag reception is lost
It loses, or the first of partial acceptance failure in the first first biography attached bag for passing data packet reception failure and only indicating all reception failures passes son
Packet, the different type of the reception failure information correspond to different feedback resources, the feedback resources from time domain, and/or frequency domain,
And/or code domain is distinguished, different types corresponds to different time-domain resources or different frequency domain resources or different CDMA spread spectrum
Code domain resource.
2. method according to claim 1, which is characterized in that first communication node is according to scheduled selection mode from institute
State b Error Correction of Coding attached bag step of selection in a Error Correction of Coding attached bag are as follows:
Second communication node is into the first communication node feedback reception failure information, including a data sectional of instruction
In c data subsection receiing success；
First communication node selects b Error Correction of Coding attached bag, b Error Correction of Coding from a Error Correction of Coding attached bag
It does not include the corresponding Error Correction of Coding attached bag of the c data sectional in packet, the value of b is less than or equal to (a-c).
3. method according to claim 1, which is characterized in that first communication node is according to scheduled selection mode from institute
State b Error Correction of Coding attached bag step of selection in a Error Correction of Coding attached bag are as follows:
Second communication node generates reception failure information according to long term evolution agreement and feeds back to the first communication node, and described the
One communication node selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, and the value of the b is equal to a-1.
4. method according to claim 1, which is characterized in that first communication node is according to scheduled selection mode from institute
State b Error Correction of Coding attached bag step of selection in a Error Correction of Coding attached bag are as follows:
Second communication node generates reception failure information according to long term evolution agreement and feeds back to the first communication node, and described the
One communication node selects b Error Correction of Coding attached bag from a Error Correction of Coding attached bag, and the value of the b is equal to a, and to b
The each re-transmission attached bag retransmitted in attached bag carries out bit selection, so that the length of at least d re-transmission attached bag is equal to | and l* (a-1)/
(a-2) |, wherein l is the length for verifying attached bag.
5. method according to claim 1, which is characterized in that the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, if there is retransmitting attached bag reception failure, then by described
It verifies attached bag and other retransmits attached bag and carry out xor operation, obtain an enhancing attached bag corresponding with reception failure re-transmission attached bag,
By decoding to the enhancing attached bag, the data sectional content that attached bag carries is retransmitted to obtain reception failure.
6. method according to claim 1, which is characterized in that the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, if there is retransmitting attached bag reception failure, then by described
It verifies attached bag and other retransmits attached bag and carry out xor operation, obtain an enhancing attached bag corresponding with reception failure re-transmission attached bag,
It is decoded by being added to the enhancing attached bag with reception failure re-transmission attached bag, is taken with obtaining reception failure re-transmission attached bag
The data sectional content of band.
7. method according to claim 1, which is characterized in that the method also includes:
The second communication node reception is described to retransmit data packet of eating dishes without rice or wine, and if there is retransmitting attached bag reception failure, and verifies attached bag
Reception failure, then second communication node thinks that the re-transmission is eated dishes without rice or wine data packet reception failure.
8. method according to claim 1, which is characterized in that first communication node is according to scheduled selection mode from institute
State b Error Correction of Coding attached bag step of selection in a Error Correction of Coding attached bag are as follows:
First communication node is selected from a Error Correction of Coding attached bag according to random selection, according to preset lookup table mode
Select b Error Correction of Coding attached bag.
9. method according to claim 1, which is characterized in that the bit number for retransmitting data packet of eating dishes without rice or wine is less than the first biography
The bit number for data packet of eating dishes without rice or wine.
10. a kind of big data packet transmission system, which is characterized in that the system comprises:
Segmentation module, for source data packet to be divided into a data sectional by the first communication node, to a data sectionals point
A Error Correction of Coding attached bag carry out not be formed after Error Correction of Coding, each Error Correction of Coding attached bag is according to shape after the punctured operation of code rate R progress
Attached bag is passed at 1 head, head is constituted by a first biography attached bags and passes data packet of eating dishes without rice or wine, wherein a is the integer greater than 1, and R is greater than 0.5
Less than or equal to 1；
Sending module, for sending the first data packet of eating dishes without rice or wine that passes to the second communication node by first communication node；
Feedback module is decoded, eats dishes without rice or wine data packet and to be decoded for receiving first pass by second communication node, if
Decoding failure, then to the first communication node feedback reception failure information；
Sending module is verified, for receiving the reception failure information, first communication node by first communication node
B Error Correction of Coding attached bag is selected from a Error Correction of Coding attached bag according to scheduled selection mode, is based on the b error correction
It encodes attached bag and generates b re-transmission attached bag, xor operation is carried out to the b re-transmission attached bag, forms a verification attached bag, the b
A re-transmission attached bag and the verification attached bag form to retransmit and eat dishes without rice or wine data packet and to send, wherein re-transmission data packet of eating dishes without rice or wine includes to repeat e
Secondary verification attached bag, e are the integer that value is greater than 1, and b is the positive integer less than or equal to a, and the reception failure information carries interior
Data packet reception failure is passed headed by appearance but does not indicate it is which first biography attached bag reception failure, or head passes data packet reception failure and refers to
Show it is which first biography attached bag reception failure, or head passes data packet reception failure and only indicates that the first of all reception failures passes in attached bag
The first of partial acceptance failure pass attached bag, the different type of the reception failure information correspond to different feedback resources, it is described instead
It presents resource to distinguish from time domain, and/or frequency domain, and/or code domain, different types corresponds to different time-domain resources or different frequencies
Domain resource or different CDMA spread code domain resource.
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| CN106097251B (en) * | 2016-06-22 | 2019-03-19 | 深圳信息职业技术学院 | Non-homogeneous sparse sampling video super-resolution method |
| CN107733551B (en) * | 2016-08-11 | 2021-02-23 | 华为技术有限公司 | Data transmission method, device and system |
| CN106656435B (en) * | 2016-11-01 | 2019-06-25 | 深圳职业技术学院 | A kind of data head passes, repeating method |
| US10784989B2 (en) * | 2018-03-14 | 2020-09-22 | Cypress Semiconductor Corporation | Bit error correction for wireless retransmission communications systems |
| CN113411370A (en) * | 2020-07-06 | 2021-09-17 | 丰疆智能(深圳)有限公司 | Terminal, server, data transmission method of Internet of things and data transmission system |
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|---|---|---|---|---|
| CN1482779A (en) * | 2002-09-13 | 2004-03-17 | 北京威速科技有限公司 | Forward error correction in internet multimedia realtime communication |
| CN101854230A (en) * | 2010-05-10 | 2010-10-06 | 武汉大学 | Device and method for improving retransmission efficiency of communication system |
| CN104301077A (en) * | 2013-07-16 | 2015-01-21 | 普天信息技术研究院有限公司 | Hybrid retransmission method |
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| US8149938B2 (en) * | 2007-08-07 | 2012-04-03 | Texas Instruments Incorporated | Transmission of ACK/NACK bits and their embedding in the CQI reference signal |
| CN101667904B (en) * | 2009-10-19 | 2012-10-24 | 上海奇微通讯技术有限公司 | All-in-one feedback retransmission method based on fountain codes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482779A (en) * | 2002-09-13 | 2004-03-17 | 北京威速科技有限公司 | Forward error correction in internet multimedia realtime communication |
| CN101854230A (en) * | 2010-05-10 | 2010-10-06 | 武汉大学 | Device and method for improving retransmission efficiency of communication system |
| CN104301077A (en) * | 2013-07-16 | 2015-01-21 | 普天信息技术研究院有限公司 | Hybrid retransmission method |
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