CN104579579A - Method and system for transmitting big data packets - Google Patents
Method and system for transmitting big data packets Download PDFInfo
- Publication number
- CN104579579A CN104579579A CN201510050832.9A CN201510050832A CN104579579A CN 104579579 A CN104579579 A CN 104579579A CN 201510050832 A CN201510050832 A CN 201510050832A CN 104579579 A CN104579579 A CN 104579579A
- Authority
- CN
- China
- Prior art keywords
- attached bag
- communication node
- error correction
- correction coding
- packet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 158
- 238000012937 correction Methods 0.000 claims abstract description 115
- 238000012795 verification Methods 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 241000209094 Oryza Species 0.000 claims description 80
- 235000007164 Oryza sativa Nutrition 0.000 claims description 80
- 235000021186 dishes Nutrition 0.000 claims description 80
- 235000009566 rice Nutrition 0.000 claims description 80
- 230000007774 longterm Effects 0.000 claims description 20
- 230000002708 enhancing effect Effects 0.000 claims description 12
- 230000011218 segmentation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000004590 computer program Methods 0.000 description 9
- 238000010295 mobile communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease 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
- 230000018109 developmental process Effects 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
Landscapes
- 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 invention is applicable to the field of communication and provides a method and a system for transmitting big data packets. The method includes: a first communication node separates a source data packet into a data segments, error correction coding is performed on each data segment, and puncturing is performed on the data segments according to a code rate R to form a first-transmission sub-packets which are transmitted to a second communication node; the second communication node receives the first-transmission air-interface data packets, performs decoding, and feeds back receiving failure information if decoding fails; the first communication node receives the failure information, selects b error correction coding sub-packets from the a error correction coding sub-packets according to a preset selection manner, generates b retransmission sub-packets on the basis of the b error correction coding sub-packets and performs XOR operation on the b retransmission sub-packets to form a verification sub-packet, and the b retransmission sub-packets and the verification sub-packet form retransmission air-interface data packets which are transmitted. By the method, data packet transmission performance can be increased, and the coding efficiency of the verification sub-packet can be increased.
Description
Technical field
The invention belongs to the communications field, particularly relate to a kind of large data pack transmission method and system.
Background technology
Along with the development of the universal of data network and miscellaneous service, as viewing video, net fun, video calling etc., need a large amount of network capacitys.Under normal circumstances, the packet that these business produce is larger, because larger packet decoding complexity is very high, and it is lower to the tolerance of noisy channels transmission situation, therefore in practical communication, each packet is divided into again several smaller chnnel coding code blocks (i.e. code block segmentation) again and transmits, and such channel decoding module relative complexity is less and higher to the tolerance of error bit.
In order to improve the service quality of communication system, communication underlying protocol needs to support HARQ (Hybrid AutoRepeat Request, hybrid automatic repeat-request) mechanism.If i.e. physical layer data bag error of transmission, by repeating to send physical layer data bag, ensure the transmitting of data.Error of transmission can be avoided like this to be diffused in upper-layer protocol, to cause larger transport overhead, the transfer resource that waste is valuable.Such as, in existing 3gpp LTE (Long Term Evolution, Long Term Evolution agreement), the maximum retransmission of HARQ is 4 times, and retransmission data packet may can adopt the coded system of catching up with merging or steadily increase redundancy to generate.
Main application scenarios and the demand of the 5th Generation Mobile Communication System comprise terminal direct connection and to communicate D2D (Device to Device), Internet of Things communication MMC (Massive Machine Communication), ultra dense degree network service UDN (Ultra Denstiy Network), mobile network communication MN (MovingNetwork) and super reliable communication URN (Ultra Reliable Network).In order to meet new business demand, the link in the 5th following Generation Mobile Communication System strengthens the low delay of technology demand fulfillment, high-throughput feature.But; existing LTE is based on the HARQ retransmission mechanism catching up with merging or steadily increase redundancy; each transmitting terminal cannot judge that attached bag concrete in the packet of eating dishes without rice or wine that receiving terminal receives receives the situation of success or not; and without any resist technology between attached bag; cause larger air interface transmission time delay, be unfavorable for the business demand meeting future mobile communication system.
Summary of the invention
The object of the present invention is to provide a kind of large data pack transmission method and system; to solve prior art because LTE is based on the HARQ retransmission mechanism catching up with merging or steadily increase redundancy; each transmitting terminal cannot judge that attached bag concrete in the packet of eating dishes without rice or wine that receiving terminal receives receives the situation of success or not; and without any resist technology between attached bag, cause the problem of larger air interface transmission time delay.
On the one hand, embodiments provide a kind of large data pack transmission method, described method comprises:
Source data packet is divided into a data sectional by the first communication node, a error correction coding attached bag is formed after respectively error correction coding is carried out to a described data sectional, each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, form head by a described head biography attached bag and pass packet of eating dishes without rice or wine, wherein a be greater than 1 integer, R is greater than 0.5 and is less than or equal to 1;
Described first communication node sends described head biography and eats dishes without rice or wine packet to second communication node;
Described second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information;
Take defeat described in described first communication node receives information, described first communication node selects b error correction coding attached bag according to predetermined selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet sending, and wherein, b is the positive integer being less than or equal to a.
In conjunction with first aspect, may in execution mode in the first of first aspect, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node, in described first communication node feedback reception failure information, comprises c data subsection receiing success in instruction a data sectional;
First communication node selects b error correction coding attached bag from described a error correction coding attached bag, and do not comprise error correction coding attached bag corresponding to a described c data sectional in described b error correction coding attached bag, the value of b is less than or equal to (a-c).
In conjunction with first aspect, may in execution mode at the second of first aspect, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node takes defeat information feed back to the first communication node according to Long Term Evolution protocol generation, and described first communication node selects b error correction coding attached bag from described a error correction coding attached bag, and the value of described b equals a-1.
In conjunction with first aspect, may in execution mode at the third of first aspect, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node takes defeat information feed back to the first communication node according to Long Term Evolution protocol generation, described first communication node selects b error correction coding attached bag from described a error correction coding attached bag, the value of described b equals a, and bit selection is carried out to each re-transmission attached bag that b retransmits in attached bag, make to have at least d the length retransmitting attached bag to equal | l* (a-1)/(a-2) |, wherein l is the length of verification attached bag.
In conjunction with first aspect, in the 4th kind of possibility execution mode of first aspect, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, by carrying out decoding to described enhancing attached bag, to obtain the described data sectional content that the re-transmission attached bag that takes defeat is carried.
In conjunction with first aspect, in the 5th kind of possibility execution mode of first aspect, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, by retransmitting attached bag to described enhancing attached bag and be added with described taking defeat and carry out decoding, retransmit to obtain to take defeat the described data sectional content that attached bag carries.
In conjunction with first aspect, in the 6th kind of possibility execution mode of first aspect, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, retransmit attached bag and take defeat, and verification attached bag takes defeat if had, then described second communication node thinks that described re-transmission is eated dishes without rice or wine receives data packets failure.
In conjunction with first aspect, may in execution mode at the 7th kind of first aspect, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described first communication node according to Stochastic choice, according to preset lookup table mode from described a error correction coding attached bag, select b error correction coding attached bag.
In conjunction with first aspect, may in execution mode at the 8th kind of first aspect, the eat dishes without rice or wine bit number of packet of described re-transmission is less than the bit number that described head passes packet of eating dishes without rice or wine.
Second aspect, the present invention proposes a kind of large data packet transmission system, described system comprises:
Segmentation module, for source data packet being divided into a data sectional by the first communication node, a error correction coding attached bag is formed after respectively error correction coding is carried out to a described data sectional, each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, form head by a described head biography attached bag and pass packet of eating dishes without rice or wine, wherein a be greater than 1 integer, R is greater than 0.5 and is less than or equal to 1;
Sending module, eats dishes without rice or wine packet to second communication node for being sent described head biography by described first communication node;
Decoding feedback module, passes packet of eating dishes without rice or wine to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information for being received described head by described second communication node;
Verification sending module, to take defeat information described in being received by described first communication node, described first communication node selects b error correction coding attached bag according to predetermined selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet sending, wherein, b is the positive integer being less than or equal to a.
In the present invention, by carrying out xor operation to each re-transmission attached bag, making to there is certain association between all re-transmission attached bags, described association can be utilized to carry out decoding at receiving terminal, data packet transmission performance can be improved.By getting rid of the partial bit in error correction coding subdata bag, the code efficiency of verification attached bag can be improved, thus can better adapt in following ultrahigh speed communication system, the communication requirement that data source is very large, breakout code number of blocks is many.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the large data packet transmission that the embodiment of the present invention provides;
Fig. 2 is that the retransmission window packet that the embodiment of the present invention provides generates schematic diagram;
Fig. 3 is the re-transmission attached bag successive bits delete position schematic diagram that the embodiment of the present invention provides;
The re-transmission attached bag discrete bits delete position schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the large data packet transmission system that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Larger source data packet is become multiple data sectional (subdata bag) by code block segmentation by the present invention, then channel error correction coding is carried out to these data sectionals, then in retransmission processes, xor operation is carried out between error correction coding code block, produce a small amount of verification attached bag, to be eated dishes without rice or wine packet by the re-transmission after bit selection operation method obtains coding to be sent, thus effectively reduce air interface transmission time delay, meet the business demand of future mobile communication system.
Large data pack transmission method of the present invention as shown in Figure 1, at least comprises the following steps:
Step 102, the first communication node carries out code block segmentation to needing the source data packet sending to second communication node, obtains a data sectional, a be greater than 1 integer; To each data sectional in a described a data sectional, add cyclic redundancy check (CRC) (Cyclic Redundancy Check, CRC) sequence; Error correction coding is carried out to each data sectional that with the addition of CRC sequence nucleotide sequence, obtains a error correction coding attached bag; Each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, and R is greater than 0.5 and is less than or equal to 1; Described a the first attached bag formation head that passes passes packet of eating dishes without rice or wine;
Step 104, the first communication node sends described head biography and eats dishes without rice or wine packet to second communication node;
Step 106, second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information;
Step 108, take defeat described in described first communication node receives information, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, forms a verification attached bag, described b re-transmission attached bag and described verification attached bag form re-transmission and to eat dishes without rice or wine packet, wherein, b is the positive integer being less than or equal to a.
Further illustrate the present invention below by specific embodiment, need to illustrate, the first communication node in embodiment and second communication node can be base station and terminal respectively, or terminal and base station.
Embodiment one
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, decoding failure, and to described first communication node feedback reception failure information, indicate c data subsection receiing in a described a data sectional successfully, wherein the value of c is greater than 0 and is less than a.
Take defeat described in first communication node receives information, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, error correction coding attached bag corresponding to a described c data sectional is not comprised in described b error correction coding attached bag, the value of b is less than or equal to (a-c), generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet, Fig. 2 gives the generation schematic diagram retransmitting packet of eating dishes without rice or wine.
Embodiment two
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, decoding failure, to take defeat information feed back to described first communication node according to Long Term Evolution protocol generation.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, the value of b equals (a – 1), preferably, described ad hoc fashion is Stochastic choice from described a error correction coding attached bag, or select b error correction coding attached bag (described form sets in advance) according to lookup table mode, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet.
Embodiment three
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, decoding failure, to take defeat information feed back to described first communication node according to Long Term Evolution protocol generation.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, now b=a (can be understood as whole selection mode), described first communication node generates b based on b error correction coding attached bag and retransmits attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmit attached bag and described verification attached bag formed re-transmission eat dishes without rice or wine packet time, the each re-transmission attached bag to b retransmits in attached bag is needed to carry out bit deletion action, d the length retransmitting attached bag is had at least to equal (rounding (length * (a-2)/(a-1) of described verification attached bag)) described in after deleting downwards, also be | l* (a-1)/(a-2) |, wherein l is the length of verification attached bag.Wherein, the value of d is less than or equal to b, the position of described b each re-transmission attached bag deleted bit retransmitted in attached bag is different, and described position can be continuous print (as shown in Figure 2, white portion is deleted bit position, grey parts is reservation bit position) or discrete (as shown in Figure 3, white portion is deleted bit position, and grey parts is reservation bit position).As far as possible the object done like this makes the eat dishes without rice or wine length of packet of re-transmission be less than or equal to and firstly pass packet of eating dishes without rice or wine, and just redundancy overhead is brought, the fairness of assured plan relative Long Term Evolution agreement existing program after introducing verification attached bag in face.
Embodiment four
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, decoding failure, generation takes defeat information, and feed back to described first communication node, wherein, passing receives data packets failure headed by the content that the described information of taking defeat is carried but not indicating is which first attached bag that passes takes defeat, or first pass receives data packets failure and which instruction is that the first attached bag that passes takes defeat, or first pass receives data packets failure and the head of the partial acceptance failure only indicating all head taken defeat to pass in attached bag passes attached bag, preferably, the feedback resources that the dissimilar correspondence of the described information that takes defeat is different, described feedback resources can from time domain, and/or frequency domain, and/or code domain is distinguished, the time-domain resource that such as different types is corresponding different, or different frequency domain resource, or different CDMA spread spectrum code domain resources.
Take defeat described in first communication node receives information, described first communication node according to described in the content that provides of the information of taking defeat, from described a error correction coding attached bag, b error correction coding attached bag is selected according to specific selection mode, preferably, described ad hoc fashion is Stochastic choice from described a error correction coding attached bag, or select b error correction coding attached bag according to lookup table mode, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet.
Embodiment five
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, and decoding failure, generates the information that takes defeat and feed back to described first communication node.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, preferably, described ad hoc fashion is the mode that described first communication node and described second communication node are arranged in advance, or described first communication node notifies described second communication node by control signal, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet.
Embodiment six
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, and decoding failure, generates the information that takes defeat and feed back to described first communication node.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b re-transmission attached bag and described verification attached bag form re-transmission and to eat dishes without rice or wine packet.
Second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, be called the re-transmission attached bag that takes defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, the attached bag described data sectional content of carrying is retransmitted by carrying out decoding to attempt obtaining to described enhancing attached bag taking defeat, preferably, in this case other re-transmission attached bags described all receive successfully, and described verification attached bag receives successfully.
Embodiment seven
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, and decoding failure, generates the information that takes defeat and feed back to described first communication node.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b re-transmission attached bag and described verification attached bag form re-transmission and to eat dishes without rice or wine packet.
Second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, be called the re-transmission attached bag that takes defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, by retransmitting attached bag to described enhancing attached bag and be added to carry out decoding to attempt obtaining taking defeat with described taking defeat and retransmit the described data sectional content that attached bag carries, preferably, in this case described other retransmit in attached bag and have at least an attached bag to take defeat, and described verification attached bag receives successfully.
Embodiment eight
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, and decoding failure, generates the information that takes defeat and feed back to described first communication node.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b re-transmission attached bag and described verification attached bag form re-transmission and to eat dishes without rice or wine packet.
Second communication node receives described re-transmission and to eat dishes without rice or wine packet, retransmit attached bag and take defeat, and verification attached bag takes defeat if had, then described second communication node thinks that described re-transmission is eated dishes without rice or wine receives data packets failure.
Embodiment nine
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, and decoding failure, generates the information that takes defeat and feed back to described first communication node.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet, preferably, retransmit the verification attached bag that packet of eating dishes without rice or wine comprises repetition e time, e is the integer that value is greater than 1, the benefit done like this increases verification attached bag to the tolerance of channel burst mistake, add second communication node successfully to decode and retransmit the probability of packet of eating dishes without rice or wine.
Embodiment ten
First communication node is formed according to Long Term Evolution agreement and comprises a the first head biography passing attached bag and to eat dishes without rice or wine packet sending.
Second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, decoding failure, generation takes defeat information feed back to described first communication node, preferably, the feedback resources index and described head that use pass in packet of eating dishes without rice or wine and receive successful head and pass attached bag or the head that takes defeat and pass attached bag and there is corresponding relation, described corresponding relation is obtained by described first communication node and described second communication node as offered, such as if the first attached bag 1 that passes takes defeat, then select feedback resources index 1 send described in take defeat information, pass attached bag n if first to take defeat, then select the information that takes defeat described in feedback resources index n transmission.
Take defeat described in first communication node receives information, cannot know which data sectional concrete receives successfully, described first communication node selects b error correction coding attached bag according to specific selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b re-transmission attached bag and described verification attached bag form re-transmission and to eat dishes without rice or wine packet.
By the method that this patent proposes, the number of retransmissions of HARQ decreases 60% than Long Term Evolution agreement, effectively reduces propagation delay of eating dishes without rice or wine, and adds the throughput of system simultaneously, can meet the business demand of the 5th Generation Mobile Communication System well.
Embodiment 11:
Fig. 5 shows the structural representation of the large data transmission system that the embodiment of the present invention provides, and large data transmission system of the present invention comprises:
Segmentation module 501, for source data packet being divided into a data sectional by the first communication node, a error correction coding attached bag is formed after respectively error correction coding is carried out to a described data sectional, each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, form head by a described head biography attached bag and pass packet of eating dishes without rice or wine, wherein a be greater than 1 integer, R is greater than 0.5 and is less than or equal to 1;
Sending module 502, eats dishes without rice or wine packet to second communication node for being sent described head biography by described first communication node;
Decoding feedback module 503, passes packet of eating dishes without rice or wine to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information for being received described head by described second communication node;
Verification sending module 504, to take defeat information described in being received by described first communication node, described first communication node selects b error correction coding attached bag according to predetermined selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet sending, wherein, b is the positive integer being less than or equal to a.
Described in the embodiment of the present invention, large data transmission system is corresponding with above-mentioned large data transmission method, does not repeat at this.
If the method and apparatus supporting to improve data packet transmission performance described in the embodiment of the present invention using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.Based on such understanding, those skilled in the art should understand, the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And, the application can adopt in one or more form wherein including the computer program that the computer-usable storage medium of computer usable program code is implemented, described storage medium includes but not limited to USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), magnetic disc store, CD-ROM, optical memory etc.
The application is that the flow chart of method, equipment (system) and computer program according to the embodiment of the present application and/or block diagram describe.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Accordingly, the embodiment of the present invention also provides a kind of computer-readable storage medium, wherein stores computer program, and this computer program improves the method and apparatus of data packet transmission performance for the support performing the embodiment of the present invention.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. a large data pack transmission method, is characterized in that, described method comprises:
Source data packet is divided into a data sectional by the first communication node, a error correction coding attached bag is formed after respectively error correction coding is carried out to a described data sectional, each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, form head by a described head biography attached bag and pass packet of eating dishes without rice or wine, wherein a be greater than 1 integer, R is greater than 0.5 and is less than or equal to 1;
Described first communication node sends described head biography and eats dishes without rice or wine packet to second communication node;
Described second communication node receives described head and passes packet of eating dishes without rice or wine and to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information;
Take defeat described in described first communication node receives information, described first communication node selects b error correction coding attached bag according to predetermined selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet sending, and wherein, b is the positive integer being less than or equal to a.
2. method according to claim 1, is characterized in that, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node, in described first communication node feedback reception failure information, comprises c data subsection receiing success in instruction a data sectional;
First communication node selects b error correction coding attached bag from described a error correction coding attached bag, and do not comprise error correction coding attached bag corresponding to a described c data sectional in described b error correction coding attached bag, the value of b is less than or equal to (a-c).
3. method according to claim 1, is characterized in that, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node takes defeat information feed back to the first communication node according to Long Term Evolution protocol generation, and described first communication node selects b error correction coding attached bag from described a error correction coding attached bag, and the value of described b equals a-1.
4. method according to claim 1, is characterized in that, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described second communication node takes defeat information feed back to the first communication node according to Long Term Evolution protocol generation, described first communication node selects b error correction coding attached bag from described a error correction coding attached bag, the value of described b equals a, and bit selection is carried out to each re-transmission attached bag that b retransmits in attached bag, make to have at least d the length retransmitting attached bag to equal | l* (a-1)/(a-2) |, wherein l is the length of verification attached bag.
5. method according to claim 1, it is characterized in that, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, by carrying out decoding to described enhancing attached bag, to obtain the described data sectional content that the re-transmission attached bag that takes defeat is carried.
6. method according to claim 1, it is characterized in that, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, if there is re-transmission attached bag to take defeat, then retransmit attached bag by described verification attached bag and other and carry out xor operation, obtaining one with taking defeat retransmits enhancing attached bag corresponding to attached bag, by retransmitting attached bag to described enhancing attached bag and be added with described taking defeat and carry out decoding, retransmit to obtain to take defeat the described data sectional content that attached bag carries.
7. method according to claim 1, it is characterized in that, described method also comprises:
Described second communication node receives described re-transmission and to eat dishes without rice or wine packet, retransmit attached bag and take defeat, and verification attached bag takes defeat if had, then described second communication node thinks that described re-transmission is eated dishes without rice or wine receives data packets failure.
8. method according to claim 1, is characterized in that, described first communication node selects b error correction coding attached bag step to be according to predetermined selection mode from described a error correction coding attached bag:
Described first communication node according to Stochastic choice, according to preset lookup table mode from described a error correction coding attached bag, select b error correction coding attached bag.
9. method according to claim 1, is characterized in that, the eat dishes without rice or wine bit number of packet of described re-transmission is less than the bit number that described head passes packet of eating dishes without rice or wine.
10. a large data packet transmission system, is characterized in that, described system comprises:
Segmentation module, for source data packet being divided into a data sectional by the first communication node, a error correction coding attached bag is formed after respectively error correction coding is carried out to a described data sectional, each error correction coding attached bag forms 1 head after carrying out deleting remaining operation according to code check R and passes attached bag, form head by a described head biography attached bag and pass packet of eating dishes without rice or wine, wherein a be greater than 1 integer, R is greater than 0.5 and is less than or equal to 1;
Sending module, eats dishes without rice or wine packet to second communication node for being sent described head biography by described first communication node;
Decoding feedback module, passes packet of eating dishes without rice or wine to go forward side by side row decoding, if decoding failure, then to described first communication node feedback reception failure information for being received described head by described second communication node;
Verification sending module, to take defeat information described in being received by described first communication node, described first communication node selects b error correction coding attached bag according to predetermined selection mode from described a error correction coding attached bag, generate b based on described b error correction coding attached bag and retransmit attached bag, retransmit attached bag to described b and carry out xor operation, form a verification attached bag, described b retransmits attached bag and described verification attached bag and forms re-transmission and to eat dishes without rice or wine packet sending, wherein, b is the positive integer being less than or equal to a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050832.9A CN104579579B (en) | 2015-01-30 | 2015-01-30 | A kind of big data package transmission method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050832.9A CN104579579B (en) | 2015-01-30 | 2015-01-30 | A kind of big data package transmission method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104579579A true CN104579579A (en) | 2015-04-29 |
| CN104579579B CN104579579B (en) | 2019-05-14 |
Family
ID=53094884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510050832.9A Expired - Fee Related CN104579579B (en) | 2015-01-30 | 2015-01-30 | A kind of big data package transmission method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104579579B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097251A (en) * | 2016-06-22 | 2016-11-09 | 深圳信息职业技术学院 | Non-homogeneous sparse sampling video super-resolution method |
| CN106656435A (en) * | 2016-11-01 | 2017-05-10 | 深圳职业技术学院 | Data first transmission and retransmission method |
| WO2018028682A1 (en) * | 2016-08-11 | 2018-02-15 | 华为技术有限公司 | Data transmission method and apparatus, and system |
| 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 |
| CN113645013A (en) * | 2018-03-14 | 2021-11-12 | 赛普拉斯半导体公司 | Bit error correction for wireless retransmission communication systems |
Citations (5)
| 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 |
| US20090042558A1 (en) * | 2007-08-07 | 2009-02-12 | Zukang Shen | Transmission of ACK/NACK Bits and their Embedding in the CQI Reference Signal |
| CN101667904A (en) * | 2009-10-19 | 2010-03-10 | 上海奇微通讯技术有限公司 | All-in-one feedback retransmission method based on fountain codes |
| 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 |
-
2015
- 2015-01-30 CN CN201510050832.9A patent/CN104579579B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| US20090042558A1 (en) * | 2007-08-07 | 2009-02-12 | Zukang Shen | Transmission of ACK/NACK Bits and their Embedding in the CQI Reference Signal |
| CN101667904A (en) * | 2009-10-19 | 2010-03-10 | 上海奇微通讯技术有限公司 | All-in-one feedback retransmission method based on fountain codes |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 何元权: "混合自动请求重传（HARQ）研究综述", 《广东通信技术》 * |
| 史治平: "《多元LDPC码及其在无线通信中的应用》", 31 January 2012 * |
| 陈运 等: "《信息论与编码》", 31 August 2002 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097251A (en) * | 2016-06-22 | 2016-11-09 | 深圳信息职业技术学院 | Non-homogeneous sparse sampling video super-resolution method |
| 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 |
| WO2018028682A1 (en) * | 2016-08-11 | 2018-02-15 | 华为技术有限公司 | Data transmission method and apparatus, and system |
| CN107733551A (en) * | 2016-08-11 | 2018-02-23 | 华为技术有限公司 | A kind of data transmission method, device and system |
| CN107733551B (en) * | 2016-08-11 | 2021-02-23 | 华为技术有限公司 | Data transmission method, device and system |
| CN106656435A (en) * | 2016-11-01 | 2017-05-10 | 深圳职业技术学院 | Data first transmission and retransmission method |
| CN106656435B (en) * | 2016-11-01 | 2019-06-25 | 深圳职业技术学院 | A kind of data head passes, repeating method |
| CN113645013A (en) * | 2018-03-14 | 2021-11-12 | 赛普拉斯半导体公司 | Bit error correction for wireless retransmission communication systems |
| CN113645013B (en) * | 2018-03-14 | 2024-04-26 | 赛普拉斯半导体公司 | Bit error correction for wireless retransmission communication 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104579579B (en) | 2019-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10834737B2 (en) | Wireless communication method and apparatus | |
| KR101374680B1 (en) | Apparatus and method for arq feedback message generating in wireless communication system | |
| JP5710795B2 (en) | Bundling of ACK information in a wireless communication system | |
| US11212036B2 (en) | Data communication method, device, and system | |
| JP6965925B2 (en) | Base station equipment, terminal equipment, wireless communication systems, and communication methods | |
| CN107682129B (en) | HARQ feedback processing method, HARQ transmission processing method and HARQ feedback processing device | |
| WO2018171711A1 (en) | Retransmission processing method and equipment | |
| CN106031072A (en) | Harq frame data structure and method of transmitting and receiving with harq in systems using blind detection | |
| CN109964431A (en) | For the base station of wireless communication, user equipment and system and corresponding method | |
| CN109155704A (en) | The triggering of short delay Fast retransmission | |
| CN104579579A (en) | Method and system for transmitting big data packets | |
| EP3836450A1 (en) | Ue, base station, and data transmission method and apparatus | |
| CN110535558A (en) | A kind of data transmission method, device and storage medium | |
| JP2015188255A (en) | Method for wirelessly charging mobile terminal | |
| WO2016119245A1 (en) | User equipment, network device, and transmission method for acknowledgement information | |
| WO2010029764A1 (en) | Wireless communication apparatus and error detection result feedback method | |
| US9402201B2 (en) | Method and apparatus for storing code block | |
| CN108347311A (en) | Send and receive method, access network equipment and the terminal device of feedback information | |
| CN104429013A (en) | Method for transmitting feedback information, user equipment and base station | |
| CN109120373B (en) | Channel coding method, data receiving method and related equipment | |
| CN107733551A (en) | A kind of data transmission method, device and system | |
| JP7035089B2 (en) | Data mapping transmission method and related products | |
| CN111294143B (en) | PDSCH soft combining method and device, storage medium, user terminal and base station | |
| KR102317852B1 (en) | Methods and devices for determining data corruption | |
| KR101766531B1 (en) | Packet retransmitting method using HARQ and index coding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |