CN107294652A - A kind of data mixing retransmission processing method and device - Google Patents

A kind of data mixing retransmission processing method and device Download PDF

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Publication number
CN107294652A
CN107294652A CN201610227740.8A CN201610227740A CN107294652A CN 107294652 A CN107294652 A CN 107294652A CN 201610227740 A CN201610227740 A CN 201610227740A CN 107294652 A CN107294652 A CN 107294652A
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China
Prior art keywords
data
bit
packet
bit number
verification
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CN201610227740.8A
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Chinese (zh)
Inventor
李立广
徐俊
许进
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ZTE Corp
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ZTE Corp
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Priority to CN201610227740.8A priority Critical patent/CN107294652A/en
Priority to PCT/CN2017/080294 priority patent/WO2017177926A1/en
Publication of CN107294652A publication Critical patent/CN107294652A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • 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
    • 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
    • H04L1/1806—Go-back-N protocols
    • 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]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application proposes a kind of data mixing retransmission processing method and device, including：The feedback information of receiving terminal is received, according to the feedback information, data processing is carried out one of in the following manner：Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original packet being made up of many parts of channel coding blocks, packet encoder acquisition verification bag is carried out to the original packet, it is first to many parts of channel coding block sum checks bag progress bit selection acquisition to pass data；Or, determine to retransmit data bit number, the re-transmission data are selected from the first data acquisition system according to the re-transmission data bit number, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system at least includes the bit set of verification packet system bit；Second data acquisition system at least includes the bit set of original packet check bit.

Description

A kind of data mixing retransmission processing method and device
Technical field
The present invention relates to the communications field, and in particular to a kind of data mixing retransmission processing method and device.
Background technology
At present, a large amount of of various handheld devices such as mobile phone, electronic wristwatch, tablet personal computer etc. are used, and radio communication is answered Rapidly increased with demand.Following various wireless mobile services types, such as e-bank, electronic health care and e-learning, in advance Count needs the capacity requirement of nearly 1000 times of increase for 10 years following.And can progressively be converted by present communication focusing on people Into largely with communication, referred to as Internet of Things (Internet of Things) between thing thing, these applications can cause the mankind's Life is more efficient, more comfortable and safer.Following 5th generation (5G) wireless mobile standard will progressively design to meet these demands.
In radio digital communication system, including two major parts of transmitting terminal and receiving terminal, wherein general transmitting terminal includes Information source module, channel coding module, modulation module and transmitter module etc., and receiving terminal then includes receiving signaling module, solution Mode transfer block, channel decoding module and acquisition information source data module etc..In digital communication, channel coding is a key modules, Primarily to the reliability of data transfer is improved, by increasing the redundancy of channel coding code word by data in transmitting procedure The error correcting of appearance comes, so as to resist the influence of decline and various noises to transmission data in channel.Now The more commonly used channel coding technology, such as LDPC (Low Density Parity Check Code, low density parity check code) Coding, Turbo (turbine) coding, convolutional encoding, RM (Reed and Muller initial) coding, RS (Reed- and Solomon, Reed-Solomon) coding, (BCH code is derived from the lead-in of 3 names such as Bose, Ray-Chaudhuri and Hocquenghem to BCH It is female) etc..Wherein, LDPC check matrix is very sparse, so decoding complexity is not high, while having natural decoding parallel Property, it can obtain higher decoding handling capacity with parallel decoding, and performance closely shannon limit, present LDPC coding staffs Formula is had been used in plurality of communication systems；Turbo codings are encoded by two component codes to information, utilize two parts component code Decoding is iterated, decoding performance can be improved, performance is very good in middle low bit- rate, and code check and code length can be cleverer It is living to set, various communication datas are adapted to very well, in existing LTE (Long Term Evolution, Long Term Evolution) communication system In mainly use Turbo coded systems；Convolutional encoding present encoding output not only it is relevant with current information also and in the past Some information-related, similar to convolution property, decoding effect is relatively good, also uses in many systems；RS codings are one Most short code is planted away from maximization code, and decoding can be using pipeline system decoding, decoding speed high speed and handling capacity height.In order to Receiving terminal is allowed correctly to judge that the block of information in the packet or coding codeword that receive is correct, in digital communication also Need to verify packet or codeword information block, that is, add some verification sequence CRC sequences (CRC, Cyclical Redundancy Check)。
In practical communication system, not only need channel coding technology to improve the reliability of data transfer, in addition it is also necessary to weight Biography mechanism ensures the reliability and Consumer's Experience of data transfer.Conventional repeating method is hybrid automatic repeat-request (Hybrid Automatic Repeat reQuest, HARQ) is a kind of by forward error correction coding (FEC, Forward Error Correction) and HARQ (ARQ, Automatic Repeat Request) be combined formed by technology.Pass System HARQ scheme, it only introduces channel coding on the basis of ARQ, i.e., to sending packet increase CRC (CRC) bit and forward channel coding is carried out.Receiving terminal carries out channel decoding and CRC check to the data of reception, if wrong The data of erroneous packet are then abandoned, and NACK (Negative Acknowledgement, negative response) letters are fed back to transmitting terminal Cease request retransmission and previous frame identical packet.In general, in communication system, physical layer can all set maximum retransmission Limitation, prevent because channel is chronically at severe slow fading and causes the packet of some user constantly to be retransmitted so that Waste channel resource.If reach the number of retransmissions of maximum, receiving terminal is still unable to correct decoding, it is determined that the packet is transmitted Mistake simultaneously abandons the bag, then notifies transmitting terminal to send new packet.Also another complete incremental redundancy scheme, this Under scheme, after information bit is encoded, the check bit after coding is punched according to certain cycle, it is former according to code-rate-compatible Receiving terminal is then sent to successively.Receiving end is not abandoned to the erroneous packet passed, but is entered with the re-transmission packet assembling that receives Row decoding；It is not to have passed the simple copy of data wherein to retransmit data, but addition of redundancy.Receiving terminal enters every time Row combination decoding, by the code word of all bit combinations received before formation more low bit- rate, it is hereby achieved that bigger coding Gain, reaches the purpose of steadily increase redundancy.And the also retransmission mechanism of multimode feedback information, that is, retransmit the bit number of data Indicated, because multimode feedback information not only carries the information of receiving end correctness, but also taken by feedback information Some information related to channel of band, so can cause re-transmission data bit number and coded modulation scheme (MCS, Modulation Code Scheme) more flexible configuration.
It is due to that its is heavy although can all obtain certain throughput performance in above-described data mixing repeating method All it is that incremental redundancy re-transmission is carried out to all channel coding blocks in original packet during biography, problem is some channel codings Block is perhaps received correct, if source data packet receives mistake, still to retransmit those and decode correct channel coding blocks Redundant data (now without retransmit the partial data again), the efficiency for retransmitting data can be so substantially reduced, so as to reduce and be System handling capacity.Moreover, (leading in following 5G mobile radio systems or other communications between WiFi communication, each middle kind of equipment Letter etc.) in, it is required for transmitting substantial amounts of data supporting various user's application demands and improving Consumer's Experience.
The content of the invention
The effect of requirement and each HARQ transmission of lifting of the invention in order to meet higher and higher communication system throughput Rate, the present invention provides a kind of data mixing retransmission processing method and device, can improve the handling capacity and efficiency of communication system.
In order to realize foregoing invention purpose, the technical scheme that the present invention takes is as follows：
A kind of data mixing retransmission processing method, for transmitting terminal, including：
The feedback information of receiving terminal is received, according to the feedback information, data processing is carried out one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；
First data acquisition system at least includes the bit set of verification packet system bit；
Second data acquisition system at least includes the bit set of original packet check bit；
The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Alternatively, if the feedback information indicates to receive mistake, handled by data are retransmitted.
Alternatively, when the re-transmission data bit number is less than or equal to N0, institute is selected from the first data acquisition system State re-transmission data；Wherein, N0 is positive integer.
Alternatively, packet encoder is carried out to the original packet, including：
The bit set that the E bits of the same index of the E part packets included to the original packet are constituted is verified Coding, obtains the verification set that n parts of length are e bits, index constitutes i-th of son for i n-bit in the n parts of verification set Verification bag, i=0,1 ..., (e-1), obtain e one's shares of expenses for a joint undertaking verification bag, the verification includes the e one's shares of expenses for a joint undertaking and verified to wrap, wherein, E It is number of data packets in the original packet, n is the packet bit number in the original packet, and e is greater than 0 integer, described Check code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
Alternatively, when check code is encoded using single-parity check, the verification bag includes 1 son verification bag.
Alternatively, first data acquisition system includes at least one of：
Verify all bits, all systematic bits of verification bag of bag.
Alternatively, second data acquisition system includes at least one of：
What all check bits of original packet, all bits of original packet, all check bits of original packet and verification were wrapped All check bits.
Alternatively, any part during T times that any part of packet bit number in data is passed headed by the N0 or verification are wrapped T times of son verification packet system bit number, wherein, T is positive integer.
Alternatively, when the re-transmission data bit number is more than N0, from the first data acquisition system and the second data acquisition system The re-transmission data are selected, determine to retransmit bit number and each number that each one's share of expenses for a joint undertaking in data verifies bag according at least one of According to the bit number of bag：Head passes the bit of any data bag in number of data packets, original packet in data total bit number mesh, original packet Number, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number；Wherein, N0 is positive integer.
Alternatively, the total bit number mesh for retransmitting many one's share of expenses for a joint undertaking verification bags in data passes data total bit number equal to the head Mesh and all many parts of packets total bit number purpose differences in the re-transmission data；Or, equal to the retransmission resource number and The product of the order of modulation and all many parts of packets total bit number purpose differences in the re-transmission data；Or, equal to institute State re-transmission data total bit number mesh and all many parts of packets total bit number purpose differences in the re-transmission data.
Alternatively, the re-transmission data bit number includes at least one of：
The product of retransmission resource number and order of modulation；Head passes data total bit number mesh；A default positive integer.
Alternatively, described method also includes：The transmitting terminal receives the feedback information of receiving terminal, if the feedback information Garbled-reception is indicated, then the data bit number that retransmits is greater than or equal to the first ratio for passing any part of packet in data Special number and pass data total bit number one integer of purpose less than or equal to first.
Alternatively, the feedback information at least includes 2 kinds of error conditions, at least indicating that retransmitting data bit number is One below：Head passes data total bit number mesh, the first bit number for passing any part of packet in data.
Alternatively, described method also includes：
The transmitting terminal receives the feedback information of receiving terminal, and data bit number is retransmitted from default according to the feedback information Determine to retransmit data bit number in set, wherein, presetting the set of re-transmission data bit number includes a element, presets and retransmits First element value is equal to 0 in data bit number set, and the i-th -1 element value is less than the i-th element value, i=2 ..., (a-1), a It is greater than 1 integer.
Alternatively, in the default re-transmission data bit number set, second element value is equal to first any passed in data The bit number of part packet.
Alternatively, in the default re-transmission data bit number set, the i-th element value adds Δ D equal to the i-th -1 element value, Wherein, i=2 ..., (a-1), Δ D are greater than 1 integer.
Alternatively, in the default re-transmission data bit number set, second element value is more than or equal to first biography data In any part of packet bit number, tail element value, which is more than or equal to, first passes data total bit number mesh.
Alternatively, if the feedback information indicates that data receiver is correct, handled by source data packet mode.
Alternatively, channel after Cj parts of codings is wherein included in jth part packet comprising E parts of packets in the original packet Encoding block；The original packet check bit is the check bit of all channel coding blocks in original packet, the verification packet system ratio Spy is that original packet systematic bits progress packet encoder is obtained, and original packet systematic bits are the systems of all channel coding blocks in original packet Bit, verification bag check bit is that original packet check bit progress packet encoder is obtained；Wherein, E is positive integer, j=0,1 ..., (E-1), Cj is positive integer；The channel coding is one of following coded system：Turbo codings, LDPC codings, convolutional encoding, Polar is encoded.
The present invention also provides a kind of data mixing retransmission processing method, for receiving terminal, including：
The transmission data of receiving end/sending end are gone forward side by side capable decoded；
If the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used to indicate the transmission End carries out data processing one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Alternatively, described method also includes：
If the transmission data errors block rate of the reception is equal to 0, send feedback information 0, for indicating transmitting terminal by source number Handled according to packet mode；Otherwise, if the transmission data errors block rate of the reception is more than T (i-1) and less than or equal to Ti, send Feedback information i, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and T(i-1)<Ti, feedback information i are i-th of elements in default feedback information set, and Di is default re-transmission data bit number set I-th of element in D, Di is greater than 0 integer, and D (i-1)<Di；Predetermined threshold value set T includes a element and wherein first and tail Element value is respectively equal to 0 and 1, and presetting feedback information set includes a element, and presetting the set of re-transmission data bit number includes a Individual element, a is greater than 1 integer, and the errored block rate is that all errored block numbers received in Q parts of transmission data connect with described The ratio of all channel coding blocks numbers in Q parts of transmission data is received, wherein, Q is positive integer.
Alternatively, in the default re-transmission data bit number set D, the i-th element value adds Δ D equal to the i-th -1 element value, Wherein, i=2 ..., (a-1), Δ D are greater than 1 integer.
Alternatively, in the default re-transmission data bit number set D, second element value D1 is equal to first times passed in data The bit number of a packet, D (a-1) is more than or equal to first biography data total bit number mesh.
The present invention also provides a kind of data mixing retransmission process device, is arranged at transmitting terminal, including：
First receiving module, is set to the feedback information of receiving terminal；
Head passes data processing module, including：Cutting unit, is set to carry out source data packet many one's share of expenses for a joint undertaking data of segmentation acquisition Block；Adding device, is set to add CRC sequences respectively to many one's share of expenses for a joint undertaking data blocks；Channel encoding unit, is set to described Sub-block after addition CRC sequences is respectively channel encoded the original packet for obtaining and being made up of many parts of channel coding blocks；Bag is compiled Code unit, is set to carry out the original packet packet encoder acquisition verification bag；First bit selecting unit, is set to described many Part channel coding block sum check bag carries out bit selection and obtains first biography data；
Data processing module is retransmitted, including：Determining unit, is set to determine to retransmit data bit number；Second than special Unit is selected, is set to select the re-transmission data, Huo Zhecong from the first data acquisition system according to the re-transmission data bit number The re-transmission data are selected in first data acquisition system and the second data acquisition system；
First data acquisition system at least includes the bit set of verification packet system bit；Second data acquisition system is at least Include the bit set of original packet check bit；The original packet includes many parts of packets, and the verification bag is to described original Bag carries out packet encoder acquisition.
Alternatively, the second bit selecting unit, is also configured to when the re-transmission data bit number is less than or waited When N0, the re-transmission data are selected from the first data acquisition system；Wherein, N0 is positive integer.
Alternatively, the re-transmission data processing module also includes packet encoder unit；The packet encoder unit includes verification and compiled Numeral unit and verification bag obtain subelement；
The check code subelement, is set to the E ratios of the same index of the E part packets included to the original packet The bit set that spy is constituted carries out check code, obtains the verification set that n parts of length are e bits；
The verification bag obtains subelement, is set to index in the n parts of verification set and constitutes i-th of son for i n-bit Verification bag, i=0,1 ..., (e-1), obtain e one's shares of expenses for a joint undertaking verification bag, the verification includes the e one's shares of expenses for a joint undertaking and verified to wrap, wherein, E It is number of data packets in the original packet, n is the packet bit number in the original packet, and e is greater than 0 integer, described Check code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
Alternatively, the second bit selecting unit, is also configured to when the re-transmission data bit number is more than N0, from The re-transmission data are selected in first data acquisition system and the second data acquisition system, determine to retransmit according at least one of each in data The bit number of one's share of expenses for a joint undertaking verification bag and the bit number of each part packet：Head passes packet in data total bit number mesh, original packet The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number in number, original packet Mesh；Wherein, N0 is positive integer.
Alternatively, the second bit selecting unit, is also configured to when the feedback information for receiving receiving terminal indicates that mistake connects Receive, then the data bit number that retransmits is greater than or equal to the first bit number for passing any part of packet in data and small In or equal to first biography data total bit number one integer of purpose.
Alternatively, the second bit selecting unit, also sets up and is retransmitted according to the feedback information for receiving receiving terminal from default Determine to retransmit data bit number in data bit number set, wherein, presetting the set of re-transmission data bit number includes a member Element, presets the header element value retransmitted in data bit number set and is equal to 0, and the i-th -1 element value is less than the i-th element value, i= 2 ..., (a-1), a are greater than 1 integer.
The present invention also provides a kind of data mixing retransmission process device, is arranged at receiving terminal, including：
Second receiving module, the transmission data for being set to receiving end/sending end are gone forward side by side capable decoded；
Feedback module, if being set to the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used In indicating that the transmitting terminal is handled one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Alternatively, the feedback module, is also configured to：If the transmission data errors block rate of the reception is equal to 0, send anti- Feedforward information 0, for indicating that transmitting terminal is handled by source data packet mode；Otherwise, if the transmission data errors block of the reception Rate is more than T (i-1) and less than or equal to Ti, send feedback information i, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti It is predetermined threshold value set T i-th of element, and T (i-1)<Ti, feedback information i are i-th yuan in default feedback information set Element, Di is i-th of element in default re-transmission data bit number set D, and Di is greater than 0 integer, and D (i-1)<Di；It is default Threshold value set T includes a element and wherein first and tail element value is respectively equal to 0 and 1, and presetting feedback information set includes a member Element, presetting the set of re-transmission data bit number includes a element, and a is greater than 1 integer, and the errored block rate is Q parts and receives biography All errored block numbers in transmission of data receive the ratio for transmitting all channel coding blocks numbers in data with described Q parts, wherein, Q is positive integer.
Compared to the prior art the present invention, has the advantages that：
The present invention, can improve the robustness of throughput of system and enhancing data transfer.
Brief description of the drawings
Fig. 1 is the flow chart of the method for transmission processing of the embodiment 5 provided according to the related fields of the present invention；
Fig. 2 is the packet encoder exemplary plot of the embodiment 1 provided according to the related fields of the present invention；
Fig. 3 is system/check bit and verification bag in the original packet according to the embodiment 1 of related fields offer of the invention Middle system/check bit exemplary plot；
Fig. 4 is that the structure of the data mixing retransmission process device of the embodiment 2 provided according to the related fields of the present invention is shown It is intended to；
Fig. 5 is the structural representation of the packet encoder device of the embodiment 2 provided according to the related fields of the present invention；
Fig. 6 is the first flow chart for passing data processing method of the embodiment 3 provided according to the related fields of the present invention；
Fig. 7 is base station and the communication link figure of onboard system of the example 1 provided according to the related fields of the present invention；
Fig. 8 is the original packet and verification bag exemplary plot of the example 1 provided according to the related fields of the present invention；
Fig. 9 is the throughput performance exemplary plot in the example 1 provided according to the related fields of the present invention；
Figure 10 is the Turbo encoder structural representation that code check is 1/3 in LTE system；
Figure 11 is the rate-matched figure of the output codons bit sequence of Turbo codings in LTE system；
Figure 12 is the convolutional encoding exemplary plot in the example 5 provided according to the related fields of the present invention；
Figure 13 is that the bit in the embodiment 1 provided according to the related fields of the present invention selects exemplary plot；
Figure 14 be according to the present invention related fields provide embodiment 4 in the data mixing re-transmission for receiving terminal at Manage exemplary plot；
Figure 15 be according to the present invention related fields provide example 5 in transmitting terminal packet encoder exemplary plot；
Figure 16 be according to the present invention related fields provide example 5 in by retransmit version carry out bit selection example Figure；
Figure 17 is that the carry out sequential bits in the example 5 provided according to the related fields of the present invention select exemplary plot；
Figure 18 is the flow chart of the HARQ transmission processing method of the embodiment 1 provided according to the related fields of the present invention；
Figure 19 is that the first of embodiment 5 provided according to the related fields of the present invention passes data instance figure；
Figure 20 is the example of the Polarization Coding method of the example 7 provided according to the related fields of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the feature in embodiment and embodiment and each example in the application can be mutually combined.
Embodiment 1
A kind of data mixing retransmission processing method is provided in the present embodiment, and Figure 18 is number according to embodiments of the present invention According to the flow chart of retransmission processing method, for transmitting terminal, as shown in figure 18, the flow comprises the following steps：
S1800, determination retransmit data bit number；
S1801, according to it is described re-transmission data bit number the re-transmission data, Huo Zhecong are selected from the first data acquisition system The re-transmission data are selected in first data acquisition system and the second data acquisition system；First data acquisition system at least includes verification bag system The bit set of system bit；Second data acquisition system at least includes the bit set of original packet check bit；The original packet Including many parts of packets, the verification bag is to carry out packet encoder acquisition to the original packet.
In step S1801 described above, if retransmitting data bit number is less than or equal to N0, from the first data acquisition system The re-transmission data are selected, wherein, N0 is a default positive integer., can be direct when re-transmission data bit number is less Selected from the first data, now only needing to the data of transfer check bag can allow receiving terminal greater probability to compile all channels Code block is successfully decoded, takes less re-transmission transfer resource, therefore efficiency of transmission is higher, can improve the handling capacity of system.
Further, in step S1801, verification bag is to carry out packet encoder acquisition, the packet encoder to the original packet Method, including：Check code is carried out to the bit set that the E bits of the same index of all E parts of packets in original packet are constituted, The verification set that n parts of length are all e bits is obtained, is indexed in the n parts of verification set and all constitutes i-th of sub- school for i n-bit Test bag, i=0,1 ..., (e-1), e one's shares of expenses for a joint undertaking verification bag is obtained, the verification bag is made up of e one's shares of expenses for a joint undertaking verification bag, wherein, E is institute Number of data packets in original packet is stated, n is the packet bit number in the original packet, and e is greater than 0 integer, the verification Coding is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
The packet encoder to the index of all E parts of packets 200 in original packet for j E bits 202 as shown in Fig. 2 carry out Check code 210, obtains verification set 203, j=0,1 ..., (n-1) of the jth part length for e bits, can obtain n parts of schools Set is tested, is indexed in all verification set and all constitutes i-th of son verification bag Pi for i n-bit, wherein, i=0,1 ..., (e- 1), so as to obtain the verification bag 201 being made up of e son verification bag.The check code can also be above-described coding staff The shortening coding of method and/or punctured coding, obtain the verification set that corresponding bits number is e bits.The benefit of packet encoder method It is all channel coding blocks can be connected, iterative decoding method can be so used when receiving decoding, improves Decoding performance.The single-parity check coding, the then only verification set of e=1 bits is such as entered to length for y bit set Row single-parity check is encoded, then the verification set of 1 bit is equal to the accumulation XOR of all y bits in bit set, such as p0= A0 ⊕ a1 ⊕ ... ⊕ a (y-1), wherein, p0 is check bit, and a0...a (y-1) is bit set；The Bose-Chaudhuri-Hocquenghem Code is a kind of Cyclic code (abbreviation for being derived from Bose, Ray-Chaudhuri and Hocquenghem), calculates with perfect algebraic process, can entangle Just multiple mistakes, its cataloged procedure is according to generator polynomial g (x)=g0 × x(e-1)+g1×x(e-2)+ ...+g (e-1) is carried out Polynomial repressentation is also used in coding, input bit set, and such as input bit collection is combined into [a0...a (t-1)], uses multinomial can be with It is expressed as a (x)=a0 × x(t-1)+a1×x(t-2)+ ...+a (t-1), it can be counted according to Bose-Chaudhuri-Hocquenghem Code rule c (x)=a (x) g (x) Bose-Chaudhuri-Hocquenghem Code word is calculated, wherein, c (x) is Bose-Chaudhuri-Hocquenghem Code word, and it is that can obtain checksum set to close that check bit is taken out from the c (x), can be with Selected section bit constitutes verification set from check bit；RS codings are one of Bose-Chaudhuri-Hocquenghem Code etc, are polynary domain codings, A generator polynomial g (x) is also required to, it is a (x)=a0 × x to input polynary domain multinomial(t-1)+a1×x(t-2)+...+a(t- 1), now, the coefficient in g (x) and a (x) is all polynary domain, and RS coded words c can be calculated according to c (x)=a (x) g (x) (x), wherein, polynary domain refers to polynary galois field, is represented for example with 4 bits, then is 16 yuan of domains；RM codings are a kind of packets Code, need to provide a kind of generator matrix G, and input information bits sequence is s, then RM code words are c=G*s, and it is to be that code word c, which needs, herein System code, RM code words c check bit, which is taken out, can obtain verification set；The check code can also include e bits Check code is as follows：Input bit collection is combined into s, carries out binary system XOR addition to s a subset Set0, obtains the 0th school Test bit；Binary system XOR phase is carried out to a subset Set1 of the new set of bit set s and the 0th check bit composition Plus, obtain the 1st check bit；The one of the new set constituted to bit set s and the 0th check bit, the 1st check bit Individual subset Set2 carries out binary system XOR addition, obtains the 2nd check bit；The like, to the s and e-1 being computed The a subset Set (e) of the new set of check bit composition carries out binary system XOR addition, obtains (e-1) individual check bit, Wherein described Set0=[0,1,2 ..., (n-1)], Set1 is the 0 whole even numbers or odd number for arriving n.By to coding information bag Packet encoder is carried out, multiple channel coding blocks can be connected, is beneficial to improve decoding gain, and compile by the bag Code scheme can make it that the bit number scope for retransmitting data is larger, if it is smaller can direct transfer check bag data, it is clever Activity is very big.
More specifically, as shown in figure 3, jth part packet S in the original packet 300jIn comprising Cj part encode after letter Road encoding block, wherein, Cj is greater than 0 integer, and the channel coding is one of following coded system：Turbo codings, LDPC are compiled Code, convolutional encoding, Polar codings.Verification bag 301 is obtained by packet encoder method, the packet encoder method is as described above.As schemed Shown in 3, also include C parts of data blocks in the i-th one's share of expenses for a joint undertaking verification bag in verification bag, because the C parts of data block is by many parts of channels Encoding block is obtained by packet encoder, and the C parts of data block falls within respective channel coding codeword space, so can also be believed Road is decoded, so C part data blocks in the verification bag also have systematic bits and check bit, systematic bits are completely by original Systematic bits in bag are obtained by packet encoder, and check bit is to be obtained completely by the check bit in original packet by packet encoder , i.e. the verification packet system bit is that original packet systematic bits progress packet encoder is obtained, and verification bag check bit is original packet Check bit carries out packet encoder and obtained, and, the original packet check bit is the verification ratio of all channel coding blocks in original packet Spy, original packet systematic bits are the systematic bits of all channel coding blocks in original packet；The C is equal to C0, C1 ..., C (E-1) In maximum, i=0,1 ..., (e-1).Wherein, original packet systematic bits are to enter channel coding in all channel coding blocks Information bit (systematic bits of all channel codings), as shown in Figure 3；During original packet check bit is all channel coding blocks Bit (verification of all channel codings or redundant bit) in addition to systematic bits, as shown in Figure 3；Described verification bag system System bit is all original packet systematic bits by the bit obtained after packet encoder, as shown in Figure 3；It is school to verify packet system bit The bit in addition to systematic bits in bag is tested, as shown in Figure 3.
Further, before packet encoder, n-ni bits are filled to i-th part of packet of original packet so that every part The bit number of packet all reaches n-bit, wherein, i=0,1 ..., (E-1), ni is i-th part of packet bit number, ni It is greater than the integer equal to 0.Purpose is, the bit number phase of the every part of packet first allowed before packet encoder in original packet Deng facilitating the execution of packet encoder, the bit of the filling is " 0 " or some dummy bits, it is to the check code in packet encoder Do not work.
In the packet encoder, if check code is encoded using single-parity check, the verification bag is only comprising 1 son verification Bag.That is, verification bag is can be expressed as P0=S0 ⊕ S1 ⊕ ... ⊕ S (E-1), and wherein P0 is verification bag, S0, S1 ..., S (E- 1) it is E parts of packets in the original packet.Now, the coding of single-parity check coding is relatively simple, directly uses accumulation XOR I.e. can be achieved, and decoding end be also fairly simple, can such as be realized using min-sum algorithms, performance can also obtain compared with It is big to improve.
Further, first data acquisition system includes all bits of verification bag, i.e., as shown in figure 3, including verification bag Systematic bits and check bit；Second data acquisition system includes all check bits of original packet, original packet verification as shown in Figure 3 Bit.Or, first data acquisition system includes all bits of verification bag, i.e., as shown in figure 3, including verification packet system bit And check bit；Second data acquisition system includes all bits of original packet, and the systematic bits of original packet as shown in Figure 3 and verification are compared It is special.Now, the default positive integer N0 is equal to the first bit number for passing packet in data, i.e., equal to original as shown in Figure 3 The bit number of any data bag in beginning bag.
Can also, first data acquisition system includes all systematic bits of verification bag, i.e., only include the system of verification bag Bit, it is to be selected by the systematic bits block of channel coding blocks for unit now to carry out special select of recycle ratio from the first data acquisition system Select；Second data acquisition system includes the check bit of original packet and the check bit of verification bag.Or, first data acquisition system Include all systematic bits of verification bag, that is, only include the systematic bits of verification bag；Second data acquisition system includes the institute of original packet There is bit.Or, first data acquisition system includes all systematic bits of verification bag, and the second data acquisition system includes original packet Check bit.Now, the N0 is equal to the systematic bits number of verification bag.
In above-described re-transmission data, including：In the bit number for retransmitting many parts of re-transmission packets in data, most The difference of big value and minimum value is less than or equal to 1.Be conducive to the bit number of every part of packet in original packet as far as possible equal so that its property Can be basically identical, be not in " short slab " effect, increase retransmits the overall of data and receives Packet Error Ratio performance.
Determine to retransmit the bit number of data according to feedback information and the first data that pass, if the feedback information of the receiving terminal refers to Show garbled-reception, then retransmit data bit number and be equal to one of following parameter：Head is passed in the total bit number mesh of data, first biography data Any part of packet bit number；Now, the feedback information of the receiving terminal at least includes 2 kinds of error conditions, indicates institute State different re-transmission data bit numbers.Or, if the feedback information of the receiving terminal indicates garbled-reception, retransmit data bit Number is equal to one of described parameter：Head passes the total bit number mesh, Q0, the first bit number for passing any part of packet in data of data Mesh；Wherein, Q0 is greater than first passing in data the bit number of any part of packet and to pass data total bit number purpose whole less than first Number；Now, the feedback information of the receiving terminal at least includes 3 kinds of error conditions, indicates the different re-transmission data bit numbers.
Further, in the re-transmission data, retransmit data bit number and be equal to order of modulation and default retransmission resource number Purpose product, order of modulation is the bit number that single constellation modulation symbol is carried, such as BPSK (binary phase shift keying) modulation order Number is equal to 1, and such as QPSK (QPSK) order of modulation is equal to 2,8PSK (eight phase-shift keying (PSK)s) order of modulation and is equal to 3, such as 16QAM (16 ary quadrature Modulation and Amplitude Modulation) order of modulation is equal to 4, such as 32QAM (32 ary quadrature Modulation and Amplitude Modulation) order of modulation In 5, such as 64QAM (64 ary quadrature Modulation and Amplitude Modulation) order of modulation is equal to 6, and such as 128QAM (128 ary quadrature Modulation and Amplitude Modulation) is adjusted Exponent number processed is equal to 7, and such as 256QAM (256 ary quadrature Modulation and Amplitude Modulation) order of modulation is equal to 8；Presetting retransmission resource number is The constellation modulation symbol number of the transmission transmission of systemic presupposition.The bit number for retransmitting verification bag, which is equal to, retransmits data bit number Mesh and all many parts re-transmission packet total bit number purpose differences.Or, retransmit data bit number be equal to it is first pass data always than Special number.Or, retransmit data bit number and be equal to a default positive integer, the positive integer can be indicated by feedback information or Person's systemic presupposition, and other are not limited to the mode and obtain the positive integer.It is described re-transmission data be from the first data acquisition system and/ Or second circulate selection in data acquisition system, wherein data take out data from circular buffer, from head if end bit is got Bit starts to take, it is known that untill getting corresponding bits number, and the initial bits for circulating selection are obtained by version number is retransmitted, or The index position for bit in the first data acquisition system or the second data acquisition system that person is equal to upper one transmission data adds one.Such as Figure 13 It is shown, all bits 1300 of the second data acquisition system including original packet (including original packet systematic bits and original packet verification ratio It is special), the first data acquisition system include verification packet system bit 1301 (the first data acquisition system does not include verification bag check bit, so Do not drawn in figure), it is described that circulation selection is carried out to the second data acquisition system, it is that unit carries out bit selection by channel coding blocks, And in the bit number of the channel coding blocks after all carry out bit selections in every part of packet, maximum and minimum value Difference is less than or equal to 1, when the bit that bit is selected has been respective channels encoding block and belongs to the tail ratio of the second data acquisition system The recycle ratio of the 0th part of channel coding blocks in the special then selection since the first bit of the channel coding blocks, such as the 0th part packet S0 It is special to be selected as collecting bit data since initial bits, selected when reaching tail bit since first bit；It is described from first Data acquisition system and performance cycle selection, are to carry out circulation bit by every part of systematic bits rate of correspondence in every one's share of expenses for a joint undertaking verification bag for unit Selection, when the tail bit for choosing systematic bits block then proceeds by selection from first bit.
Embodiment 2
A kind of data mixing retransmission process device is provided in the present embodiment, and Fig. 4 is number according to embodiments of the present invention According to the block diagram of retransmission process device, for transmitting terminal, as shown in figure 4, retransmitting data processing module 401 such as lower unit：
Determining unit, for determining to retransmit data bit number；
Second bit selecting unit, for according to data bit number is retransmitted, one of selection in the following manner to obtain described heavy Pass data：A, the re-transmission data are selected from the first data acquisition system；B, the re-transmission data are from the second data acquisition system and/or Selected in one data acquisition system；Wherein, first data acquisition system is at least to include the bit set of verification packet system bit, described Second data acquisition system is at least to include the bit set of original packet check bit, and original packet includes many parts of packets, the verification Bag is to carry out packet encoder acquisition to the original packet.
The verification bag is to carry out packet encoder acquisition by the original packet, retransmits data processing module including as described below Packet encoder unit, as shown in Figure 5：Check code subelement 500, for the same index to all E parts of packets in original packet E bits constitute bit set carry out check code, obtain n part length all for e bits verification set；Verification bag obtains son Unit 501, all i-th of son verification bag, i=0,1 ..., (e- are constituted for being indexed in described n parts verification set for i n-bit 1) e one's shares of expenses for a joint undertaking verification bag, is obtained, the verification bag is made up of e one's shares of expenses for a joint undertaking verification bag, wherein, E is number-of-packet in the original packet Mesh, n is the packet bit number in the original packet, and e is greater than 0 integer, and the check code uses following coding staff One of formula：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.Wherein, above-described coded system such as embodiment 1 It is described.
Embodiment 3
A kind of data mixing retransmission processing method is provided in the present embodiment, for transmitting terminal, is comprised the following steps：
S0, receiving terminal feedback information；
S1, if feedback information indicate garbled-reception, and if the 1st time re-transmission, then send the 1st re-transmission to receiving terminal Data, including：It is determined that retransmitting data bit number；According to data bit number is retransmitted, one of selection in the following manner obtains described Retransmit data：A, the re-transmission data are selected from the first data acquisition system；B, the re-transmission data from the second data acquisition system and/or Selected in first data acquisition system；Wherein, first data acquisition system is at least to include the bit set of verification packet system bit, institute It is at least to include the bit set of original packet check bit to state the second data acquisition system, and original packet includes many parts of packets, the school It is to carry out packet encoder acquisition to the original packet to test bag.
Further, the corresponding head of data is retransmitted with described 1st time and passes data, head passes processing procedure such as Fig. 6 of data It is shown, comprise the following steps：S600, carries out segmentation to source data packet and obtains E one's share of expenses for a joint undertaking data blocks；S601, to jth one's share of expenses for a joint undertaking data block Carry out channel coding and obtain jth part packet, j=0,1 ..., (E-1), obtain the original packet being made up of E parts of packets； S602, carries out bit selection to original packet by predetermined code check and obtains first biography data.
The verification bag is to carry out packet encoder acquisition by the original packet, wherein, above-described packet encoder method is strictly according to the facts Apply described in example 1.The purpose for carrying out packet encoder is, many parts of data blocks are set up by packet encoder and contacted, are translated in receiving terminal It can be obtained during code and compare larger gain.The verification bag of packet encoder is main to be transmitted in data are retransmitted, and can not change first biography number In the case of, you can with compatible original communication system, and the throughput performance for retransmitting data can be improved.
Further, in step sl, the bit number for retransmitting data is equal to the first bit number for passing data；With And, in the re-transmission data, in the bit number of E part packets of bit selection output, the difference of maxima and minima is small In the integer that 1 is greater than equal to 1, E.
Further, encoded in the packet encoder using single-parity check, i.e., only verify bag comprising 1 one's share of expenses for a joint undertaking in verification bag, Length is n, in step sl, and the bit number for the verification bag that the bit selection is obtained, which is equal to, retransmits data bit number and institute The E parts for having bit selection to obtain retransmit the total bit number purpose difference of packet, wherein retransmitting data bit number is equal to first pass Data bit number.It is described many parts re-transmission packet bit numbers be：The bit number for having d1 parts of re-transmission packets is n1, is had The length of E-d1 channel coding blocks is n1-1, wherein,D1=mod (N-n', n1-1)；Or, It is equal to [(N-n')/(E+1)]；Wherein, N is to retransmit data bit number, and n' is the first ratio for passing any part of packet in data Special number, E is the number of packet in original packet, calculating formulaRepresent the smallest positive integral more than or equal to real number x, mod (x1, x2) represent integer x2To integer x1Modulo operation, calculating formula [x] represent round number or downward round numbers or Upper round numbers under person.Retransmit data bit number be equal to it is first pass data bit number, can be passed according to head data bit number come The bit for calculating the verification bag for retransmitting data and every part of packet is ripe, calculates simple, and shared resource and the first data that pass are The same, it can be transmitted on identical scheduling resource, it is not necessary to resend instruction to indicate resource scheduling information.Or institute State and retransmit the product that data bit number is equal to order of modulation and systemic presupposition number of resources, now, described re-transmission data The number of resources distributed by system of bit number of verification bag and every part of packet is calculated, and now can more be made full use of current System resource, is transmitted in new system resource, and resource utilization is high.
Embodiment 4
A kind of data mixing retransmission processing method is provided in the present embodiment, for receiving terminal, as shown in figure 14, including Following steps：
S1400, the transmission data of receiving end/sending end；
The transmission data received are decoded by S1401；
S1402, if the decoded result mistake, to transmitting terminal send feedback information, including：By the feedback information and head Pass data to determine to retransmit data bit number, one of selection in the following manner obtains the re-transmission data：A, the re-transmission data from Selected in first data acquisition system；B, the re-transmission data are selected from the second data acquisition system and/or the first data acquisition system；Wherein, First data acquisition system is at least to include the bit set of verification packet system bit, and second data acquisition system is at least to include The bit set of original packet check bit, original packet includes many parts of packets, and the verification bag is that the original packet is wrapped Coding is obtained.
In step S1402, if the transmission data errors block rate of the reception is more than T (i-1) and less than Ti, feedback letter is sent I is ceased, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and 0<T(i- 1)<Ti<1, feedback information i are i-th of elements in feedback information set, and Di is default retransmits i-th in data bit number set D Individual element, Di is greater than 0 integer, and D (i-1)<Di；The transmission data errors block rate of the reception is to receive Q parts of transmission numbers The ratio of all error code block numbers and all channel coding block numbers in described Q parts of transmission data of reception in, wherein, Q is just whole Number.In general, the 0th element T 0=0 in predetermined threshold value set T；The 0th element is that ACK (is indicated just in feedback information set Really receive), other elements represent garbled-reception；Retransmit the 0th element D0=0 in data bit number set D.Methods described Benefit is that feedback information is multi-mode, and re-transmission data bit number can flexibly be set, and adapt to the change of channel, The bit number that data only need to estimate is retransmitted, resource utilization can be greatly improved, the handling capacity of whole system can be improved Performance and system summation capacity.
In step S1402, including：If the errored block rate of the transmission data of the reception is more than 0 and less than T ', send anti- Feedforward information 1 (NACK1), indicates that retransmitting data bit number is equal to the first any part of packet bit number passed in data；If institute The errored block rate for stating the transmission data of reception is more than or equal to T ', and send feedback information 2 (NACK2) indicates to retransmit data bit number Mesh is equal to the first bit number for passing data；Wherein, T ' is greater than 0 real number for being less than 1, and errored block rate is that described receive transmits data In error code block number and all code block numbers ratio.
In step S1402, it can also include：If the errored block rate of the transmission data of the reception is more than 0 and less than T0, Send feedback information 1 (NACK1), indicates that retransmitting data bit number is equal to the first any part of packet bit number passed in data Mesh；If the errored block rate of the transmission data of the reception is more than or equal to T0 and less than T1, feedback letter 2 (NACK2) is sent, weight is indicated Pass data bit number and be equal to Q0；If the errored block rate of the transmission data of the reception is more than or equal to T1, send feedback information 3 (NACK3), indicate that retransmitting data bit number is equal to the first bit number for passing data；Wherein, 0<T0<T1<1, errored block rate is The error code block number and the ratio of all code block numbers received in transmission data, Q0 is greater than any part of packet in first biography data Bit number and pass data total bit number purpose integer less than first.
Embodiment 5
A kind of data mixing retransmission processing method is provided in the present embodiment, for transmitting terminal, as shown in figure 1, including Following steps：
Receive the feedback information of receiving terminal；
According to the feedback information, data processing is carried out one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
As shown in figure 18, step S1800, it is determined that retransmitting data bit number；
Step S1801, the re-transmission data are selected according to the re-transmission data bit number from the first data acquisition system, or Person selects the re-transmission data from the first data acquisition system and the second data acquisition system；First data acquisition system at least includes verification The bit set of packet system bit；Second data acquisition system at least includes the bit set of original packet check bit；The original Beginning includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
As shown in figure 19, step S190 specifically includes following steps：
S1900, to source data packet carry out segmentation obtain H1 one's share of expenses for a joint undertaking data blocks；
S1901, the H1 one's shares of expenses for a joint undertaking data block is added respectively length be I bits CRC sequences；
S1902, the H1 one's shares of expenses for a joint undertaking data block after the addition CRC sequences is carried out respectively Polarization Coding obtain H1 part polarization volume Code block；
S1903, whole bits to the H1 parts of Polarization Coding block or partial bit carry out packet encoder and obtain H2 one's shares of expenses for a joint undertaking Verification is wrapped, and the H1 parts of Polarization Coding block and H2 one's shares of expenses for a joint undertaking verification bag constitute first biography data, and wherein H1 is greater than 1 integer, H2 is greater than 0 integer, and I is greater than or equal to 0 integer.
Further, in step S1801, when the re-transmission data bit number is less than or equal to N0, from the first number According to selecting the re-transmission data in set；Wherein, N0 is positive integer.When retransmit data bit number it is less when, can directly from Selected in first data, now only needing to the data of transfer check bag can allow receiving terminal greater probability can be by all channel codings Block decoding success, takes less re-transmission transfer resource, therefore efficiency of transmission is higher, can improve the handling capacity of system.
Wherein, the original packet carries out packet encoder acquisition, including：The phase of the E part packets included to the original packet The bit set constituted with the E bits of index carries out check code, obtains the verification set that n parts of length are e bits, described n parts Index constitutes i-th of son verification bag for i n-bit in verification set, i=0, and 1 ..., (e-1), obtain e one's shares of expenses for a joint undertaking verification bag, institute Stating verification includes the e one's shares of expenses for a joint undertaking and verifies to wrap, wherein, E is number of data packets in the original packet, during n is the original packet Packet bit number, e is greater than 0 integer, and the check code is using one of following coded system：Single-parity check is compiled Code, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.When check code is encoded using single-parity check, the verification bag includes 1 sub- school Test bag.
Further, first data acquisition system includes at least one of：Verify all bits, the institute of verification bag of bag There are systematic bits.Second data acquisition system includes at least one of：All check bits of original packet, original packet it is all All check bits of bit, all check bits of original packet and verification bag.
Further, T times that any part of packet bit number in data is passed headed by the N0 or verification are any in wrapping T times of one's share of expenses for a joint undertaking verification packet system bit number, wherein, T is positive integer.When the re-transmission data bit number is more than N0, from The re-transmission data are selected in first data acquisition system and the second data acquisition system, determine to retransmit according at least one of each in data The bit number of one's share of expenses for a joint undertaking verification bag and the bit number of each part packet：Head passes packet in data total bit number mesh, original packet The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number in number, original packet Mesh；Wherein, N0 is positive integer.Wherein, the total bit number mesh for retransmitting many one's share of expenses for a joint undertaking verification bags in data passes number equal to the head According to total bit number mesh and all many parts of packets total bit number purpose differences in the re-transmission data；Or, retransmitted equal to described The product of number of resources and the order of modulation and all many parts of packets total bit number purpose differences in the re-transmission data；Or Person, equal to the re-transmission data total bit number mesh and all many parts of packets total bit number purpose differences in the re-transmission data. The re-transmission data bit number includes at least one of：The product of retransmission resource number and order of modulation；It is total that head passes data Bit number；A default positive integer.
Further, before it is determined that retransmitting data bit number, in addition to：Step 1802, the transmitting terminal connects The feedback information of receiving end, if the feedback information indicates that the data that receiving terminal is received are wrong, the re-transmission data bits Number is greater than or equal to the first bit number for passing any part of packet in data and total less than or equal to first biography data One integer of bit number.The feedback information at least includes 2 kinds of error conditions, at least indicating to retransmit data bit number Mesh is one below：Head passes data total bit number mesh, the first bit number for passing any part of packet in data.
Further, or, it is determined that retransmit data bit number before, in addition to：Step 1802, it is described to send termination The feedback information of receiving terminal is received, determines to retransmit data ratio from default re-transmission data bit number set according to the feedback information Special number, wherein, presetting the set of re-transmission data bit number includes a element, presets first in re-transmission data bit number set Individual element value is equal to 0, and the i-th -1 element value is less than the i-th element value, and i=2 ..., (a-1), a are greater than 1 integer.It is described pre- If retransmitting in data bit number set, second element value is equal to the first bit number for passing any part of packet in data.With And, in the default re-transmission data bit number set, the i-th element value adds Δ D equal to the i-th -1 element value, wherein, i= 2 ..., (a-1), Δ D are greater than or equal to the default integer for retransmitting second element value in data bit number set.Or, In the default re-transmission data bit number set, second element value is more than or equal to the first any part of packet passed in data Bit number, tail element value, which is more than or equal to, first passes data total bit number mesh.
Further, letter after Cj parts of codings is wherein included in jth part packet comprising E parts of packets in the original packet Road encoding block；The original packet check bit is the check bit of all channel coding blocks in original packet, the verification packet system Bit is that original packet systematic bits carry out packet encoder and obtained, and original packet systematic bits are that all channel coding blocks are in original packet System bit, verification bag check bit is that original packet check bit progress packet encoder is obtained；Wherein, E is positive integer, j=0, 1 ..., (E-1), Cj is positive integer；The channel coding is one of following coded system：Turbo codings, LDPC codings, convolution Coding, Polar codings.
Embodiment 6
A kind of data mixing retransmission processing method is provided in the present embodiment, for receiving terminal, as shown in figure 14, including Following steps：
Step S1400, the transmission data of receiving end/sending end；
The transmission data received are decoded by step S1401；
Step S1402, if the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used to refer to Show that the transmitting terminal carries out data processing one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Further, in step S1402, in addition to：If the transmission data errors block rate of the reception is equal to 0, send anti- Feedforward information 0, for indicating that transmitting terminal need not retransmit data, transmitting terminal is handled by source data packet mode；If described receive Transmission data errors block rate be more than T (i-1) and less than or equal to Ti, send feedback information i, for indicating to retransmit data bit number Mesh is equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and T (i-1)<Ti, feedback information i are default feedback letters I-th of element in breath set, Di is i-th of element in default re-transmission data bit number set D, and Di is greater than 0 integer, and D(i-1)<Di；Predetermined threshold value set includes a element and wherein first and tail element value is respectively equal to 0 and 1, presets feedback information Set includes a element, and presetting the set of re-transmission data bit number includes a element, and a is greater than 1 integer, the errored block Rate is the errored block number received in transmission data and the ratio for receiving all channel coding blocks numbers in transmission data Value.
Further, in the default re-transmission data bit number set D, the i-th element value adds Δ equal to the i-th -1 element value D, wherein, i=2 ..., (a-1), Δ D are greater than 1 integer.Or, in the default re-transmission data bit number set D, Second element value D1 is more than or equal to the first bit number for passing any part of packet in data, and D (a-1) is more than or equal to Head passes data total bit number mesh.
Embodiment 7
A kind of data mixing retransmission process device is provided in the present embodiment, transmitting terminal is arranged at, as shown in figure 4, bag Include following module：
First receiving module, is set to the feedback information of receiving terminal；
Head passes data processing module 400, including：Cutting unit, is set to carry out source data packet many one's shares of expenses for a joint undertaking of segmentation acquisition Data block；Adding device, is set to add CRC sequences respectively to many one's share of expenses for a joint undertaking data blocks；Channel encoding unit, is set to pair Sub-block after the addition CRC sequences is respectively channel encoded the original packet for obtaining and being made up of many parts of channel coding blocks； Packet encoder unit, is set to carry out the original packet packet encoder acquisition verification bag；First bit selecting unit, is set to institute State many parts of channel coding block sum check bags and carry out the first biography data of bit selection acquisition；
Data processing module 401 is retransmitted, including：Determining unit, is set to determine to retransmit data bit number；Second bit Selecting unit, is set to select the re-transmission data from the first data acquisition system according to the re-transmission data bit number, or The re-transmission data are selected from the first data acquisition system and the second data acquisition system；
First data acquisition system at least includes the bit set of verification packet system bit；Second data acquisition system is at least Include the bit set of original packet check bit；The original packet includes many parts of packets, and the verification bag is to described original Bag carries out packet encoder acquisition.
Further, the second bit selecting unit, be also configured to when it is described re-transmission data bit number be less than or During equal to N0, the re-transmission data are selected from the first data acquisition system；Wherein, N0 is positive integer.
Further, the re-transmission data processing module also includes packet encoder unit；As shown in figure 5, the packet encoder list Member includes the bag of check code subelement 500 and obtains subelement 501；
The check code subelement 500, the same index of E part packets for being set to include the original packet The bit set that E bits are constituted carries out check code, obtains the verification set that n parts of length are e bits；
The verification bag obtains subelement 501, is set to index in the n parts of verification set and constitutes i-th for i n-bit Height verification bag, i=0,1 ..., (e-1), obtain e one's shares of expenses for a joint undertaking verification bag, the verification includes the e one's shares of expenses for a joint undertaking and verified to wrap, its In, E is number of data packets in the original packet, and n is the packet bit number in the original packet, and e is greater than 0 integer, The check code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
Further, the second bit selecting unit, is also configured to when the re-transmission data bit number is more than N0, The re-transmission data are selected from the first data acquisition system and the second data acquisition system, are determined to retransmit in data according at least one of The bit number of each one's share of expenses for a joint undertaking verification bag and the bit number of each part packet：Head passes data in data total bit number mesh, original packet The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource in bag number, original packet Number；Wherein, N0 is positive integer.
Or, the second bit selecting unit also sets up the feedback information instruction garbled-reception when reception receiving terminal, then It is described retransmit data bit number be greater than or equal to the first bit number for passing any part of packet in data and be less than or Person is equal to first biography data total bit number one integer of purpose.
Further, the second bit selecting unit, also sets up according to receiving the feedback information of receiving terminal from default weight Pass and determine to retransmit data bit number in data bit number set, wherein, presetting the set of re-transmission data bit number includes a Element, presets the header element value retransmitted in data bit number set and is equal to 0, and the i-th -1 element value is less than the i-th element value, i= 2 ..., (a-1), a are greater than 1 integer.
Specifically, it is first to pass cutting unit in data processing module, it is set to carry out source data packet segmentation acquisition H1 one's shares of expenses for a joint undertaking Data block；
Adding device, is set to add the H1 one's shares of expenses for a joint undertaking data block respectively the CRC sequences that length is I bits；
Channel encoding unit, is set to carry out Polarization Coding respectively to the H1 one's shares of expenses for a joint undertaking data block after the addition CRC sequences Obtain H1 parts of Polarization Coding blocks；
Packet encoder unit, is set to carry out packet encoder to the whole bits or partial bit of the H1 parts of Polarization Coding block H2 one's shares of expenses for a joint undertaking verification bag is obtained,
First bit selecting unit, is set to determine that the H1 parts of Polarization Coding block and H2 one's shares of expenses for a joint undertaking verification bag constitute head Pass data；
Wherein H1 is greater than 1 integer, and H2 is greater than 0 integer, and I is greater than or equal to 0 integer.
Embodiment 8
A kind of data mixing retransmission process device is provided in the present embodiment, is arranged at receiving terminal, including following module：
Second receiving module, the transmission data for being set to receiving end/sending end are gone forward side by side capable decoded；
Feedback module, if being set to the decoded result mistake, to transmitting terminal send feedback information, the feedback Information is used to indicate that the transmitting terminal is handled one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC sequences are added respectively to many one's share of expenses for a joint undertaking data blocks, Then the sub-block after the addition CRC sequences is respectively channel encoded and obtains the original being made up of many parts of channel coding blocks Begin bag, and packet encoder is carried out to the original packet and obtains verification bag, many parts of channel coding block sum checks bag is carried out than special Select the first biography data of acquisition；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Further, the feedback module, is also configured to：If the transmission data errors block rate of the reception is equal to 0, send Feedback information 0, for indicating that transmitting terminal need not retransmit data, transmitting terminal is handled by source data packet mode；If described connect The transmission data errors block rate of receipts is more than T (i-1) and less than or equal to Ti, send feedback information i, for indicating to retransmit data bit Number is equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and T (i-1)<Ti, feedback information i are default feedbacks I-th of element in information aggregate, Di is i-th of element in default re-transmission data bit number set D, and Di is greater than 0 integer, And D (i-1)<Di；Predetermined threshold value set includes a element and wherein first and tail element value is respectively equal to 0 and 1, presets feedback letter Breath set includes a element, and presetting the set of re-transmission data bit number includes a element, and a is greater than 1 integer, the error code Block rate is to receive all errored block numbers in Q parts of transmission data and all channel coding blocks in described Q parts of transmission data of reception The ratio of number, wherein, Q is positive integer.
Embodiment 9
A kind of data mixing retransmission processing method is provided in the present embodiment, for receiving terminal, including：
The feedback information of receiving terminal is received, according to the feedback information, data processing is carried out one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, cyclic redundancy is added respectively to many one's share of expenses for a joint undertaking data blocks Check (CRC) sequence, is then respectively channel encoded acquisition to the sub-block after the addition CRC sequences and is compiled by many parts of channels The original packet that code block is constituted, packet encoder is carried out to the original packet and obtains verification bag, to many parts of channel coding block sum checks Bag carries out bit selection acquisition head and passes data；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；
First data acquisition system at least includes the bit set of verification packet system bit；
Second data acquisition system at least includes the bit set of original packet check bit；
The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Preferably, if the feedback information indicates to receive mistake, handled by data are retransmitted.When the re-transmission data When bit number is less than or equal to N0, the re-transmission data are selected from the first data acquisition system；Wherein, N0 is positive integer.
Wherein, packet encoder is carried out to the original packet, including：The E part packets included to the original packet it is identical The bit set that the E bits of index are constituted carries out check code, obtains the verification set that n parts of length are e bits, the n parts of school Test in set index and constitute i-th of son verification bag for i n-bit, i=0,1 ..., (e-1), e one's shares of expenses for a joint undertaking verification bag is obtained, it is described Verification includes the e one's shares of expenses for a joint undertaking verification bag, wherein, E is number of data packets in the original packet, and n is the number in the original packet According to bag bit number, e is greater than 0 integer, and the check code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.When check code is encoded using single-parity check, the verification bag includes 1 son verification Bag.
Preferably, first data acquisition system includes at least one of：Verify all bits of bag, verify all of bag Systematic bits.And then, second data acquisition system includes at least one of：All check bits of original packet, original packet All check bits of all bits, all check bits of original packet and verification bag.
Preferably, any part during T times that any part of packet bit number in data is passed headed by the N0 or verification are wrapped T times of son verification packet system bit number, wherein, T is positive integer.When the re-transmission data bit number is more than N0, from the The re-transmission data are selected in one data acquisition system and the second data acquisition system, are determined to retransmit each part in data according at least one of The bit number of son verification bag and the bit number of each part packet：Head passes number-of-packet in data total bit number mesh, original packet The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number in mesh, original packet； Wherein, N0 is positive integer.The total bit number mesh of many one's share of expenses for a joint undertaking verification bags is equal to the first biography total bit of data in the re-transmission data Number and all many parts of packets total bit number purpose differences in the re-transmission data；Or, equal to the retransmission resource number With the product and all many parts of packets total bit number purpose differences in the re-transmission data of the order of modulation；Or, it is equal to The re-transmission data total bit number mesh and all many parts of packets total bit number purpose differences in the re-transmission data.Preferably, Characterized in that, the re-transmission data bit number includes at least one of：The product of retransmission resource number and order of modulation； Head passes data total bit number mesh；A default positive integer.Also include：The transmitting terminal receives the feedback information of receiving terminal, if The feedback information indicates garbled-reception, then the data bit number that retransmits is greater than or equal to first any passed in data The bit number of part packet and pass data total bit number one integer of purpose less than or equal to first.
Preferably, the feedback information at least includes 2 kinds of error conditions, at least indicating that retransmitting data bit number is One below：Head passes data total bit number mesh, the first bit number for passing any part of packet in data.
Further, the transmitting terminal receives the feedback information of receiving terminal, according to the feedback information from default re-transmission number Data bit number is retransmitted according to determination in bit number set, wherein, preset the set of re-transmission data bit number first including a Element, presets first element value in re-transmission data bit number set and is equal to 0, and the i-th -1 element value is less than the i-th element value, i= 2 ..., (a-1), a are greater than 1 integer.In the default re-transmission data bit number set, second element value is equal to first pass The bit number of any part of packet in data.And, in the default re-transmission data bit number set, the i-th element value Add Δ D equal to the i-th -1 element value, wherein, i=2 ..., (a-1), Δ D are greater than 1 integer.Or, the default re-transmission number According in bit number set, second element value is more than or equal to the first bit number for passing any part of packet in data, tail Element value is more than or equal to first biography data total bit number mesh.If the feedback information indicates that data receiver is correct, by source number Handled according to packet mode.
Preferably, channel after Cj parts of codings is wherein included in jth part packet comprising E parts of packets in the original packet Encoding block；The original packet check bit is the check bit of all channel coding blocks in original packet, the verification packet system ratio Spy is that original packet systematic bits progress packet encoder is obtained, and original packet systematic bits are the systems of all channel coding blocks in original packet Bit, verification bag check bit is that original packet check bit progress packet encoder is obtained；Wherein, E is positive integer, j=0,1 ..., (E-1), Cj is positive integer；The channel coding is one of following coded system：Turbo codings, LDPC codings, convolutional encoding, Polar is encoded.
Embodiment 10
A kind of data mixing retransmission processing method is provided in the present embodiment, for receiving terminal, including：
The transmission data of receiving end/sending end are gone forward side by side capable decoded；If the decoded result mistake, send anti-to transmitting terminal Feedforward information, the feedback information is used to indicate that the transmitting terminal carries out data processing one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, cyclic redundancy is added respectively to many one's share of expenses for a joint undertaking data blocks Check (CRC) sequence, is then respectively channel encoded acquisition to the sub-block after the addition CRC sequences and is compiled by many parts of channels The original packet that code block is constituted, packet encoder is carried out to the original packet and obtains verification bag, to many parts of channel coding block sum checks Bag carries out bit selection acquisition head and passes data；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Preferably, if the transmission data errors block rate of the reception is equal to 0, send feedback information 0, for indicating transmitting terminal Handled by source data packet mode；Otherwise, if the transmission data errors block rate of the reception is more than T (i-1) and is less than or equal to Ti, send feedback information i, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti is i-th of predetermined threshold value set T Element, and T (i-1)<Ti, feedback information i are i-th of elements in default feedback information set, and Di is default re-transmission data bit I-th of element in number set D, Di is greater than 0 integer, and D (i-1)<Di；Predetermined threshold value set T include a element and its Middle first and tail element value is respectively equal to 0 and 1, and presetting feedback information set includes a element, presets and retransmits data bit number collection Conjunction includes a element, and a is greater than 1 integer, and the errored block rate is to receive all errored block numbers in Q parts of transmission data The ratio of all channel coding blocks numbers in data is transmitted with Q parts of the reception, wherein, Q is positive integer.
Preferably, in the default re-transmission data bit number set D, the i-th element value adds Δ D equal to the i-th -1 element value, Wherein, i=2 ..., (a-1), Δ D are greater than 1 integer.Further, the default re-transmission data bit number set D In, second element value D1 is equal to the first bit number for passing any part of packet in data, and D (a-1) is more than or equal to head and passes number According to total bit number mesh.
Embodiment 11
A kind of data mixing retransmission process device is provided in the present embodiment, is arranged at transmitting terminal, including：
First receiving module, is set to the feedback information of receiving terminal；
Head passes data processing module, including：Cutting unit, is set to carry out source data packet many one's share of expenses for a joint undertaking data of segmentation acquisition Block；Adding device, is set to add cyclic redundancy check (CRC) sequence respectively to many one's share of expenses for a joint undertaking data blocks；Channel encoding unit, It is set to be respectively channel encoded the sub-block after the addition CRC sequences and obtains what is be made up of many parts of channel coding blocks Original packet；Packet encoder unit, is set to carry out the original packet packet encoder acquisition verification bag；First bit selecting unit, if It is set to and the first biography data of bit selection acquisition is carried out to many parts of channel coding block sum checks bag；
Data processing module is retransmitted, including：Determining unit, is set to determine to retransmit data bit number；Second than special Unit is selected, is set to select the re-transmission data, Huo Zhecong from the first data acquisition system according to the re-transmission data bit number The re-transmission data are selected in first data acquisition system and the second data acquisition system；
First data acquisition system at least includes the bit set of verification packet system bit；Second data acquisition system is at least Include the bit set of original packet check bit；The original packet includes many parts of packets, and the verification bag is to described original Bag carries out packet encoder acquisition.
The second bit selecting unit, is also configured to when the re-transmission data bit number is less than or equal to N0, The re-transmission data are selected from the first data acquisition system；Wherein, N0 is positive integer.
The re-transmission data processing module also includes packet encoder unit；The packet encoder unit includes check code subelement Subelement is obtained with verification bag；The check code subelement, is set to the phase of E part packets included to the original packet The bit set constituted with the E bits of index carries out check code, obtains the verification set that n parts of length are e bits；The verification Bag acquisition subelement, is set to index in the n parts of verification set and is wrapped for i i-th of son verification of n-bit composition, i=0, 1 ..., (e-1), obtain e one's shares of expenses for a joint undertaking verification bag, the verification includes the e one's shares of expenses for a joint undertaking and verified to wrap, wherein, E is the original packet Middle number of data packets, n is the packet bit number in the original packet, and e is greater than 0 integer, and the check code is used One of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
Preferably, the second bit selecting unit, is also configured to when the re-transmission data bit number is more than N0, from The re-transmission data are selected in first data acquisition system and the second data acquisition system, determine to retransmit according at least one of each in data The bit number of one's share of expenses for a joint undertaking verification bag and the bit number of each part packet：Head passes packet in data total bit number mesh, original packet The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number in number, original packet Mesh；Wherein, N0 is positive integer.
And, the second bit selecting unit is also configured to when the feedback information instruction garbled-reception for receiving receiving terminal, Then the data bit number that retransmits is greater than or equal to the first bit number for passing any part of packet in data and is less than Or pass data total bit number one integer of purpose equal to head.
The second bit selecting unit, also sets up according to receiving the feedback information of receiving terminal from default re-transmission data bit Determine to retransmit data bit number in number set, wherein, presetting the set of re-transmission data bit number includes a element, presets Retransmit the header element value in data bit number set and be equal to 0, and the i-th -1 element value is less than the i-th element value, i=2 ..., (a- 1), a is greater than 1 integer.
Embodiment 12
A kind of data mixing retransmission process device is provided in the present embodiment, receiving terminal is arranged at, it is characterised in that bag Include：
Second receiving module, the transmission data for being set to receiving end/sending end are gone forward side by side capable decoded；
Feedback module, if being set to the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used In indicating that the transmitting terminal is handled one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, cyclic redundancy is added respectively to many one's share of expenses for a joint undertaking data blocks Check (CRC) sequence, is then respectively channel encoded acquisition to the sub-block after the addition CRC sequences and is compiled by many parts of channels The original packet that code block is constituted, packet encoder is carried out to the original packet and obtains verification bag, to many parts of channel coding block sum checks Bag carries out bit selection acquisition head and passes data；Or,
It is determined that data bit number is retransmitted, according to the re-transmission data bit number is selected from the first data acquisition system Data are retransmitted, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system At least include the bit set of verification packet system bit；Second data acquisition system at least includes the bit of original packet check bit Set；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
Preferably, the feedback module, is also configured to：If the transmission data errors block rate of the reception is equal to 0, send anti- Feedforward information 0, for indicating that transmitting terminal is handled by source data packet mode；Otherwise, if the transmission data errors block of the reception Rate is more than T (i-1) and less than or equal to Ti, send feedback information i, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti It is predetermined threshold value set T i-th of element, and T (i-1)<Ti, feedback information i are i-th yuan in default feedback information set Element, Di is i-th of element in default re-transmission data bit number set D, and Di is greater than 0 integer, and D (i-1)<Di；It is default Threshold value set T includes a element and wherein first and tail element value is respectively equal to 0 and 1, and presetting feedback information set includes a member Element, presetting the set of re-transmission data bit number includes a element, and a is greater than 1 integer, and the errored block rate is Q parts and receives biography All errored block numbers in transmission of data receive the ratio for transmitting all channel coding blocks numbers in data with described Q parts, wherein, Q is positive integer.
Illustrate the present invention below with some instantiations：
Example 1
According to the one side of this patent, for wireless data communication system, wherein can be used for a kind of base station, including： Access point (AP) is properly termed as node B (node B), radio network controller (RNC), evolved Node B (Evolved Node B, eNB), base station controller (BSC), base transceiver station (BTS), base station (BS), transceiver function (TF), radio Router, wireless set, basic service unit (BSS), expansion service unit (ESS), radio base station (RBS), or one A little other terms.
As shown in fig. 7, be a link instance of the wireless communication system of the related many aspects using the present invention, For the communication between onboard system and base station.Transmitting terminal 700 sends data 703 and arrives receiving terminal 701, and the basis of receiving terminal 701 Receive the correct situation of data and send feedback signal 702 to transmitting terminal 700, described transmitting terminal 700 is base station, naturally it is also possible to be Other devices as described above, and the receiving terminal 701 is onboard system or tablet personal computer, reads mechanical, electrical The handheld devices such as sublist, and other need access internet electronic equipment or interconnection electronic equipment, wireless-modulated solution Adjust device, laptop computer, personal computer, mobile unit, mobile phone, radio access node, sensor node etc..
Various algorithms of the present invention and method and apparatus module can be used for base station 700 in a wireless communication system The transmission carried out between onboard system 701.The method for transmission processing of the present invention can be used for LTE communication system, WiFi systems System, high frequency communication system and for 5G communication systems etc..The length of the source data packet of required transmission is 4240 bits, channel Coding is using the Turbo codings in LTE system, and the encoder bit rate of default is 1/2, and constellation modulation system is 16QAM, maximum Number of retransmissions M=3 (that is, maximum transmission times are 4 times).As shown in fig. 7, base station 700 sends business number to onboard system 701 According to, and receive the feedback information of the transmission of onboard system 701, the transmission business datum if first pass data, then it is first to pass data Processing procedure comprise the following steps：
1st, segmentation is carried out for the source data packet of 4240 bits to length and obtains d=10 one's share of expenses for a joint undertaking data blocks, per one's share of expenses for a joint undertaking data block Bit number be 424；
2nd, Turbo codings are carried out to jth one's share of expenses for a joint undertaking data block and obtain jth part packet, j=0,1 ..., 9 is obtained by d= The original packet that 10 parts of packets are constituted；Comprising the Turbo encoding blocks after Cj=1 parts of codings in the jth part packet, carrying out 8 bit CRC sequences are first added before Turbo codings so that reach 432 bits per the length of one's share of expenses for a joint undertaking data block, compare described 432 It is the Turbo encoding blocks after the coding of 1308 bits that special sub-block, which carries out Turbo codings and obtains length,；
3rd, bit selection is carried out to original packet by predetermined code check 1/2 and obtains first biography data.Described bit selection, which is used, to follow Ring system of selection, length is placed in a circular buffer for the Turbo encoding blocks of 1308 bits, and bit takes out ratio successively when selecting Special data, selection is proceeded by if tail bit is reached from first bit.Because predetermined code check is 1/2, so each speed The bit number of Turbo encoding blocks after matching somebody with somebody is 864, so that the first total bit number mesh for passing data is 8640.If entered in order Row bit is selected, then the starting index position selected is 0, i.e., since first bit, and retransmit data next time then in its tail ratio The index position that special index position adds one starts selection, and the bit transmitted next time the selection starting index position of this example is 864；And if carrying out bit selection using version number, then the starting index position of bit selection is by retransmitting version number ri、Turbo Encoding block total length NcbWith interleave depth RsbRelevant, the initial bits index position in this example is sti=Rsb×(2[Ncb/ (8Rsb)]×ri+ 2), version number's collection is combined into r=[0 21 3], and 4 elements (most 4 transmission numbers are included in set According to), the version number of each the number of transmissions is corresponded to, the 0th element is the version number transmitted first, and the 1st element is the 1st re-transmission number According to version number, the 2nd element be the 2nd time re-transmission data version number, the 3rd element be the 3rd time re-transmission data version number.Due to In this example, Rsb=14, Ncb=1344, r0=0, now during first biography data, st0=28, and correspondingly re-transmission data are respectively st1=700, st2=364, st3=1036.
4th, d=10 part packets after the bit selection are sent, bit number is all 864 bits, every part of packet bag The Turbo encoding blocks after 1 part of rate-matched are included, the starting index position of the bit selection wherein in rate-matched is 28.By tune Mode processed is that 16QAM (i.e. order of modulation is M=4) enters planetary modulation to the first data (d=10 parts of packets) that pass, And send the data flow after the modulation to onboard system 701.
After base station 700 has sent first biography data to onboard system 701, the feedback information of onboard system 701 is received, if instead Feedforward information indicates Data reception errors, then is operated according to the following steps：
1st, the bit set that the d=10 bits of the same index of all d=10 parts of packets in original packet are constituted is carried out Check code (check code is encoded using single-parity check in this example, i.e. e=1), it is all e=1 to obtain n=1308 parts of length The verification set of bit, only has 1 bit due to now verifying set, so the n=1308 parts of verification set constitutes the 0th son Verification bag, obtains 1 one's share of expenses for a joint undertaking verification bag p0, and the verification bag is made up of=1 one's share of expenses for a joint undertaking verification bag.Also it can be expressed as follows：Verifying bag is P0=a0 ⊕ a1 ⊕ ... ⊕ a (d-1) can be expressed as, wherein p0 is verification bag, a0, a1 ..., a (d-1) be the original packet Middle d parts of packet.Now, every part of packet is only comprising 1 part of Turbo encoding block in original packet, and verification bag is only comprising the verification of 1 one's share of expenses for a joint undertaking Bag, systematic bits and check bit wherein in original packet 800 and systematic bits and check bit point in verification bag 801 Not as shown in figure 8, the first data acquisition system is include verifying the bit set of packet system bit and check bit (verification bag owns Bit), the second data acquisition system is to include the bit set (all bits of original packet) of original packet systematic bits and check bit.
2nd, determine retransmit data bit number, according to feedback information indicate, feedback information at least include 3 states (ACK, NACK1, NACK2), represent to be properly received if ACK is received as；Garbled-reception is indicated if NACK1 is received as, ith is retransmitted The bit number of data is 864 × i, i=1,2,3；Garbled-reception is indicated if NACK2 is received as, ith retransmits the ratio of data Special number is 8640.
3rd, according to data bit number is retransmitted, one of selection in the following manner obtains the re-transmission data：A, the re-transmission number Selected according to from the first data acquisition system；B, the re-transmission data are selected from the second data acquisition system.Ith is retransmitted in data, in advance If positive integer N0 be equal to first pass the packet bit number in data t=i times, i=1,2,3, packet in first biography data Bit number is 864, so the 1st (or 2 or 3) secondary re-transmission data of correspondence, N0 is equal to 864 (or 864 × 2 or 864 × 3).If weight Pass data bit number and be less than or equal to N0, selection mode a, if retransmitting data bit number is more than N0, selection mode b.If described The bit number for retransmitting data is 8640, is selected from the second data acquisition system, then the bit for the every part of packet selected Number is 864, i.e., the bit of each Turbo code selects 864 bits, is selected by version number is retransmitted.
According to re-transmission data mode described above, the modulation system of transmission data is all that (order of modulation is 16QAM every time 4), under AWGN (additive white Gaussian noise) channel, system Normalized throughput performance comparision is as shown in Figure 9, it can be seen that described Blended data retransmission processing method can obtain larger throughput gain, and 900 signal to noise ratio that there are about 1.1dB are retransmitted at the 1st time Gain, 900 snr gains that there are about 0.9dB are retransmitted at the 2nd time, and 900 snr gains that there are about 0.6dB are retransmitted at the 3rd time, This method has larger novelty.Gain mostlys come from 2 aspects, and the 1st is to retransmit to include the less school of bit number in data The bit set of bag is tested, resource occupation takes less, the 2nd is the coding gain that packet encoder method is brought, and multiple packets are passed through Packet encoder method, which is connected, is similarly constructed a big channel coding blocks, is greatly lowered the Packet Error Ratio performance of source data packet.
This example and used Turbo coding methods in example as described below are all using specified in LTE standard Coding method.Its cataloged procedure is as follows：
In LTE system, Turbo encoding schemes use parallel cascade convolutional encoding (PCCC, Parallel Concatenated Convolutional Code), it has been used interweaves in two 8 state sub-encoders and a Turbo code Device.The code check of Turbo encoder is that the transfer function of 8 state sub-encoders in 1/3, PCCC is：G (D)=[1, g1(D)/g0 (D)], g0(D)=1+D2+D3, g1(D)=1+D+D3, when proceeding by coding, shift register in 8 state sub-encoders Initial value is 0, and specific coding structure is as shown in Figure 10.Turbo encoder is output as：Its In, k=0,1,2, L, K-1.
The bit of input Turbo encoder is expressed as c0,c1,c2,c3,L,cK-1, first and second 8 state subgroups coding The output bit of device is respectively z0,z1,z2,z3,L,zK-1With z '0,z′1,z′2,z′3,L,z′K-1.From Turbo code interleaver Output bit is expressed as c '0,c′1,L,c′K-1, these bits will second 8 state sub-encoders of input.
The ZF processing of Turbo codings is by being obtained from the shift register feedback after all information bits coding Tail bit come complete coding, tail bit information bit coding after add.First three tail is encoded for terminating first coding Device, now second sub-encoders is disabled.Last three tail bits are used to terminate second sub-encoders, now first son Encoder is disabled.So, the transmitted bit for grid termination scheme is：
Turbo code interleaver, the bit of input Turbo code interleaver is expressed as c0,c1,L,cK-1, wherein K is input The number of bit.The output of Turbo code interleaver is expressed as c '0,c′1,L,c′K-1.Input and the relation for exporting bit are as follows： c′i=cΠ(i), i=0,1 ..., (K-1).Wherein, output sequence number i and input sequence number Π (i) relation meet following secondary shape Formula, i.e.,：Π (i)=(f1·i+f2·i2) modK, Π (i)=(f1·i+f2·i2)mod K.Parameter f1And f2It is big depending on block Small K.
The rate-matched of the code word bits sequence of Turbo coding outputs is as shown in figure 11, the transmission channel of Turbo codings The process of rate-matched is：First by three message bit streamsAndIt is interleaved respectively, then carries out bit receipts Collection, is finally the generation of circular buffer, is finally the bit sequence e that bit selection obtains transmissionk。
Bit streamIt is interleaved according to specific sub-block interleaver, its corresponding output sequence point It is not defined asL, L, L,The sub-block of each bit stream is handed over Knit device unified definition as follows：WithThe input bit of the sub-block interleaver of the i-th output sequence of correspondence is represented, D is bit number, i=0,1,2.The output bit sequence generating process of sub-block interleaver is：1,2,...
1) makesFor matrix column number, each row sequence number of matrix from left to right for 0,1,2 ...,
2) gusts of line numberTo meet the minimum integer of following formula：Each row sequence of matrix It is 0,1,2 number from top to bottom ...,
If 3)Then added on headIndividual dummy bit, makes Obtain yk=<NULL>, k=0,1 ..., ND-1.Then,From matrixThe column position of 0th row the 0th starts to write bit sequence y line by linek(from bit y0Start to write).
ForWithCarried out by 4 and 5.
4) is based on shown in table as described belowPattern, carry out matrix column between replace, its Middle P (j) represents the original column position of j-th of conversion row.Enter after replacing between ranksTieing up matrix is：
5) output of block interleavers is after rank transformationThe ratio read by column in dimension matrix Special sequence.The output bit that sub-block interweaves is expressed asWhereinCorresponding to yP(0),Correspond toAndForCarried out by 6.
6) is usedL,The output of sub-block interleaver is represented, whereinSimultaneously
Displacement patternses P definition see the table below：
During bit is collected, the length of correspondence Turbo encoding blocks is Kw=3KΠCircular buffer generate as follows：For k=0 ..., KΠ-1；For k=0 ..., KΠ-1；For k=0 ..., KΠ-1.Described wkTurbo encoding blocks after the coding exactly obtained after Turbo is encoded, carry out rate-matched be exactly The wkMiddle progress bit selection.
In bit selection, according to transmission version number rvidx, sub-block interweave line numberThe soft caching of Turbo encoding blocks Bit length NcbDetermine the initial bits of bit selection：Since the bit of kth 0 Selection, ignores filling bit.
Example 2
This example and the difference of example 1 are that the bit number for retransmitting data is different, when base station 700 is to onboard system 701 The first feedback information for passing after data, receiving onboard system 701 is sent, if feedback information indicates Data reception errors, the number It is as described below according to hybrid repeat method：
2nd, determine to retransmit data bit number, the re-transmission data bit number is equal to order of modulation and default number of resources Product, if the modulation system of default be 16QAM (order of modulation M=4), retransmit data systemic presupposition resource be 1500 Individual constellation symbol, you can to calculate the bit number for retransmitting data equal to 6000.
3rd, according to data bit number 6000 is retransmitted, bit selection is carried out from the first data acquisition system and the second data acquisition system Obtain the re-transmission data.Because the first every part of packet (Turbo encoding blocks) passed in data in original packet has transmitted 864 Bit, in order that of substantially equal (every part of the bit number of every part of packet and verification bag in the original packet in data must be retransmitted Each the difference of total transmitted bit number is within 5 bits in packet and verification bag, and total transmitted bit number refers to institute Have all bits transmitted, including first pass data and retransmit data), then the bit of more options 864 from the first data acquisition system, 10 after the rate-matched for verifying in bag mean allocation, i.e. re-transmission data by d=10 parts of packets and 1 part of remaining bits number The bit number of part packet is calculated as follows：There is d1The bit number of=10 parts of packets is N1=707, d-d1=0 part of packet Bit number be N1- 1=706,d1=mod (N-n, N1- 1)=10, and retransmit number The bit number of verification bag in is N-d1×N1-(d-d1)×(N1- 1)=1570, wherein, N for retransmit data bit number 6000, n be the first bit number 864 for passing any part of packet in data, by the bit number from the first data acquisition system and the Two data acquisition systems, which carry out bit selection, can obtain the re-transmission data that bit number is 6000 bits.The starting of the bit selection Bit index position can be by transmitting version number rvidx, sub-block interweave line numberThe bit of the soft caching of Turbo encoding blocks Length NcbIt is determined that, this method as described in Example 1, is repeated no more here；Or mode can carry out bit selection, example in order Such as, if the index position of the most end of last time selection is y, the initial bits index position of this bit selection is y+1, and is worked as Then continue selection from first bit when tail bit is chosen from data, until having collected required bit number.
Select the above bit re-transmission data of 6000 bits of output to carry out 16QAM modulation, 1500 stars can be obtained Seat modulation symbol, sends the constellation symbol after the modulation.
Example 3
The difference of this example and example 1 is that the definition of first data acquisition system is different, the first data acquisition system bag All bits of verification bag are included, and the second data acquisition system only includes all check bits of original packet.Retransmit the bit number of data Mesh and example 1 it is identical, mode carries out circulation selection in order for bit selection.
Or, first data acquisition system includes all systematic bits of verification bag, and the second data acquisition system includes original packet Check bit and verification bag check bit, now described default positive integer N0 be equal to verification bag in systematic bits number I times of 432, wherein, i is number of retransmissions, if the 1st (or 2 or 3) are secondary to retransmit then i=1 (or 2 or 3).If the 1st re-transmission The bit number of data is 432, and 432 bits are selected from the first data acquisition system, because the first data acquisition system is only comprising verification bag Systematic bits and its bit number is exactly equal to 432 bits, 432 bits that bit selection is obtained are exactly all first data sets All bits in conjunction；If (value can be by systemic presupposition, or receiving terminal to the bit number of the 2nd re-transmission data for 600 Feedback information is indicated, or is determined by allowable resource), its value is less than 432 × 2, so still from the first data acquisition system Selected；Other the like operation can obtain the re-transmission data of corresponding bits.
Or, first data acquisition system includes all systematic bits of verification bag, and the second data acquisition system includes original packet All bits.Or, first data acquisition system includes all systematic bits of verification bag, and the second data acquisition system includes original The check bit of bag.Described bit system of selection is similar with approach described above, repeats no more here.
Example 4
According to the one side of this patent, for wireless data communication system, wherein can be used for a kind of user equipment (UE) Or base station.The user equipment includes：Mobile device, be access terminal, user terminal, subscriber station, subscriber unit, movement Stand, distant station, remote terminal, user agent, user's set, user equipment or some other terms, for sending number to base station According to HARQ retransmission schemes, and also include communication etc. between the user equipment (UE) in Internet of Things.The user equipment also may be used It is mobile phone, automobile, tablet personal computer, various sensing nodes etc..The base station includes access point (AP) or is properly termed as node B (node B), radio network controller (RNC), evolved Node B (Evolved Node B, eNB), base station controller (BSC), base transceiver station (BTS), base station (BS), transceiver function (TF), Radio Router, wireless set, base This service unit (BSS), expansion service unit (ESS), radio base station (RBS), or some other terms.
According to the one side of invention, this example provides a kind of data mixing retransmission processing method, for receiving terminal, receives The transmission data of processing as described in Example 1, the data sent according to transmitting terminal in example 1, receiving terminal (the vehicle-mounted system of this example System) reception processing is carried out, including：
Receive first biography data processing method：First 2160 constellation symbols for passing data are received, planet is entered to 2160 symbol Seat demodulation obtains 8640 Soft Inform ations (log-likelihood ratio information)；Bit system of selection as described in example 1 carries out inverse operation, Solution rate-matched is carried out to 8640 Soft Inform ations and obtains 10 parts of Turbo encoding block Soft Inform ations, every part of Soft Inform ation number All it is 1308,0 is set to without the Soft Inform ation of selected bit position；To 10 parts after the solution rate-matched Turbo encoding block Soft Inform ations are decoded, and pass through CRC sequence (CRC sequences) and/or Turbo code word space pair Decoded result makes decisions (decision method is not limited to approach described above), if all decoded results are correct, to hair Sending end feedback information indicates to be properly received；If decoded result is wrong, when Turbo code error number and total Turbo code block number When purpose ratio is less than or equal to T, then NACK1 is fed back, indicate to retransmit the re-transmission data of 864 bits, and when Turbo code error number When being more than T with total Turbo code block number purpose ratio, then NACK2 is fed back, indicate to retransmit the re-transmission data of 8640 bits, wherein, institute The predetermined threshold value T stated is greater than 0 and the real number less than 1, in this example, T are equal to 0.9.
Receive and retransmit data processing method：The constellation symbol for the corresponding number for retransmitting data is received, to shown constellation symbol It is demodulated the corresponding Soft Inform ation sequence of acquisition；Re-transmission data bit system of selection as described in example 1 carries out inverse operation, if Only number is the bit sequence of 864 Soft Inform ation verification bags, then solves rate-matched and obtain the school that Soft Inform ation number is all 1308 Bag is tested, if described retransmit the bit data included in data in original packet, solution rate-matched obtains Turbo in corresponding original packet The Soft Inform ation of code block, 0 is set to without the Soft Inform ation of selected bit position；Merging previous receipt and current reception By solve the original packet Soft Inform ation after rate-matched and verification bag Soft Inform ation, if for example, this reception is the 2nd weight Data are passed, j-th of Turbo encoding block Soft Inform ation isWhereinIt is ith weight Pass j-th of Turbo encoding block Soft Inform ation, LLR in datajIt is the soft data of j-th of Turbo encoding block after soft data merges, j =0,1, L, 9, and verification bag soft data is also to merge acquisition by same treatment method；Then again to described 10 parts solution speed Turbo encoding blocks Soft Inform ation and verification bag Soft Inform ation after rate matching are decoded, and obtain source data packet, by verification bag is institute There is the XOR result (single-parity check coding) of Turbo encoding blocks, so the verification bag falls within described Turbo code word sky Between, Turbo decodings can also be carried out, the coding/decoding method can be carried out using step as described below (alternative manner)：1st, first to d =10 parts of Turbo encoding blocks Soft Inform ations and verification bag Soft Inform ation carry out Turbo decodings；2nd, Turbo decodings are made decisions, retained The Turbo encoding block Soft Inform ations of decoding error, correctly or if reaching maximum iteration (being to the maximum 5 times) are exited if decoding Iteration；3rd, decoded by packet encoder and the Turbo encoding block Soft Inform ations of decoding error are modified, return to the 1st step.And pass through CRC sequence (CRC sequences) and/or Turbo code word space make decisions that (decision method is not limited to decoded result In approach described above), if all Turbo code decoded results are correct, indicate correctly to connect to transmitting terminal feedback information ACK Receive；If decoded result is wrong, when Turbo code error number is less than or equal to T with total Turbo code block number purpose ratio, then NACK1 is fed back, indicates to retransmit the re-transmission data of 864 bits, and when Turbo code error number and total Turbo code block number purpose ratio When value is more than T, then NACK2 is fed back, indicate to retransmit the re-transmission data of 8640 bits, wherein, described predetermined threshold value T is greater than 0 And the real number less than 1, in this example, T are equal to 0.9.
Example 5
According to the one side of this patent, for LTE mobile communication system or following 5th Generation Mobile Communication System, number It is that base station sends data (downlink transfer business datum) to mobile subscriber according to transmission direction, or data transfer direction is mobile uses Family sends data (uplink business datum) to base station.The mobile subscriber includes：Mobile device, be access terminal, user Terminal, subscriber station, subscriber unit, movement station, distant station, remote terminal, user agent, user's set, user equipment or some Other terms.The base station includes access point (AP) or is properly termed as node B (node B), radio network controller (RNC), evolved Node B (Evolved Node B, eNB), base station controller (BSC), base transceiver station (BTS), base station (BS), transceiver function (TF), Radio Router, wireless set, basic service unit (BSS), expansion service list First (ESS), radio base station (RBS), or some other terms.
According to an aspect of the present invention, this example provides a kind of data mixing retransmission processing method, for receiving terminal, connects Receive the transmission data transmitted by processing transmitting terminal as described below：The bit number of source data packet is 16000, is divided into 16 parts of bit numbers Mesh is all the sub-block of 1000 bits, and the CRC sequences that bit number is 8 bits, every 2 parts of additions are added to every one's share of expenses for a joint undertaking data block Sub-block is 1 part of packet after CRC sequences, therefore a total of 8 parts of packets, to all addition CRC sequences in 8 parts of packets It is Turbo encoding blocks, the ratio of every part of packet after the coding of 3036 bits that sub-block afterwards, which carries out Turbo codings and obtains number, Special number is 6072, is all Turbo encoding blocks after coding comprising 2 parts of bit numbers, is encoded in the Turbo codings and example 1 Method is identical, and 8 parts of bit numbers all constitute original packet for 6072 packet；Turbo encoding blocks after being encoded to this 16 parts It is the Turbo encoding blocks after 3/4 rate-matched, i.e., the Turbo codings after every part rate matching to carry out bit selection and obtain code check The bit number of block is 1344, while the bit number that will also realize that every part of transmission packet is 1344 × 2=2688, and first biography The total bit number mesh of data is 1344 × 16=21504, uses modulation system for QPSK (QPSK), order of modulation etc. In 2, constellation modulation symbol number is 10752.If carrying out bit selection by version number is retransmitted, foundation is retransmitted as described in example 1 In the method that the parameters such as version number determine the initial bits of each transmission data, this example, when head passes data, st0=63, such as scheme Initial bits 1603 shown in 16 (a), each Turbo encoding block wherein shown in Figure 16 (a), which passes through sub-block, to be interweaved and compares Spy collects the code word obtained；And the bit selection starting index position of the 1st time, 2 times, 3 times re-transmission data of correspondence is respectively st1 =1599, st2=831, st3=2367.Carried out according to sequential bits selection mode, then the 0th time (first) transmission data middling speed The bit selection starting index position of Turbo encoding blocks after rate matching is 0, such as shown in Figure 17 (a)；In 1st transmission data The index-location values that the bit selection starting index position of Turbo encoding blocks after rate-matched is equal to the 0th time add 1, and right The complementation of Turbo encoding block total bit numbers mesh 3036 (allows starting index-location values to be less than 3036)；2nd transmission data medium-rate The index-location values that the bit selection starting index position of Turbo encoding blocks after matching somebody with somebody is equal to the 1st time plus 1, and Turbo is encoded The complementation of block total bit number mesh 3036；The bit selection starting index of Turbo encoding blocks after 3rd transmission data medium-rate matching The index-location values that position is equal to the 2nd time add 1, and to the complementation of Turbo encoding block total bit numbers mesh 3036.
According to above-described transmission data, this example provides a kind of data mixing retransmission processing method, connect for data Receive side (being mobile subscriber when descending, be base station when up), comprise the following steps：
1, the transmission data of receiving end/sending end；10752 constellation symbols received are demodulated, 21504 are obtained Soft information value (log-likelihood ratio), is divided into Soft Inform ation block (8 parts of soft data bags, every part of soft data that 16 number mesh are all 1344 Include 2 parts of Soft Inform ation blocks), carry out solution rate-matched and obtain corresponding Turbo code soft data block.
2, the transmission data received are decoded；16 parts of Soft Inform ation blocks after the solution rate-matched are carried out Turbo is decoded, and is obtained 16 parts of decoded information blocks, that is, is obtained having 2 parts of solutions in 8 parts of decoding data bags, every part of decoding data bag Code block of information.
3, by CRC sequences and/or whether belong to the modes such as Turbo code code word space and adjudicate the 8 parts of solutions received The correctness of code packet.If the decoded result mistake, to transmitting terminal send feedback information, by the feedback information and first biography Data determine re-transmission data bit number, and one of selection in the following manner obtains the re-transmission data：A, the re-transmission data are from Selected in one data acquisition system；B, the re-transmission data are selected from the second data acquisition system and/or the first data acquisition system；Wherein, institute It is at least to include the bit set of verification packet system bit to state the first data acquisition system, and second data acquisition system is at least to include original The bit set of beginning bag check bit, original packet includes many parts of packets, and the verification bag is to carry out bag volume to the original packet Code is obtained.
In the packet encoder, if check code is encoded using single-parity check, i.e., described verification bag is only comprising 1 son verification Bag.That is, verification bag is that verification is wrapped for that can be expressed as P0=S0 ⊕ S1 ⊕ ... ⊕ S7, wherein P0, S0, and S1 ..., S7 are described D=8 parts of packets in original packet, the bit number of every part of packet is 6072, includes 2 parts of Turbo encoding blocks.Such as Figure 15 institutes Show, the systematic bits of verification bag 1501 carry out single-parity check coding by the systematic bits of 8 parts of packets (S0, S1 ..., S7) Obtain, the check bit of verification bag 1501 carries out single-parity check volume by the check bit of 8 parts of packets (S0, S1 ..., S7) Code is obtained, and the systematic bits of every part of packet are made up of the systematic bits for belonging to all Turbo encoding blocks of the packet, and former Beginning packet system bit is that the systematic bits of all packets are constituted, and the check bit of every part of packet is by belonging to the institute of the packet The check bit for having Turbo encoding blocks is constituted, and original packet check bit is that the check bit of all packets is constituted.
In step 3, if the transmission data errors block rate of the reception is more than T (i-1) and less than Ti, send feedback information i, For indicating that retransmitting data bit number is equal to Di；Wherein, Ti is i-th of element of predetermined threshold value set, and 0<T(i-1)< Ti, i=[2,3,4], feedback information i are i-th of elements in feedback information set, and Di is default re-transmission data bit number set In i-th of element, Di is greater than 0 integer, and D (i-1)<Di；The transmission data errors block rate of the reception is the reception Transmit the error code block number and the ratio for receiving all code block numbers in transmission data in data.In this example, predetermined threshold value Collection is combined into [0 0.2 0.4 0.7 1], and feedback information collection is combined into [ACK, NACK0, NACK1, NACK2, NACK3], is preset and is retransmitted Data bit number collection is combined into [0,2688,8000,16000,21504].If transmission data errors block rate of the reception etc. In T0 (i.e. equal to 0), send feedback information 0 (i.e. ACK) indicates that retransmitting data bit number is equal to D0 (i.e. equal to 0).
In step 3, including：If the transmission data of the reception are correct, feedback information 0 (ACK), instruction correctly connects Receive；If the errored block rate of the transmission data of the reception is more than 0 and less than T, send feedback information 1 (NACK1) indicates to retransmit number It is equal to the first any part of packet bit number passed in data according to bit number, i.e., equal to 2688；If the transmission number of the reception According to errored block rate be more than or equal to T, send feedback information 2 (NACK2) indicates to retransmit data bit number and is equal to the first data that pass Bit number, i.e., equal to 21504；Wherein, T=0.9, errored block rate is the wrong Turbo code block received in transmission data Number and the ratio of all Turbo code block numbers (being equal to 16) received in transmission data.
Or, it is described in step 3, can include：If the transmission data of the reception are correct, feedback information 0 (ACK), indicate to be properly received；If the errored block rate of the transmission data of the reception is more than 0 and less than T0, send feedback information 1 (NACK1), indicate that retransmitting data bit number is equal to the first any part of packet bit number passed in data, i.e., equal to 2688； If the errored block rate of the transmission data of the reception is more than or equal to T0 and less than T1, feedback letter 2 (NACK2) is sent, indicates to retransmit Data bit number is equal to Q0=15000；If the errored block rate of the transmission data of the reception is more than or equal to T1, feedback letter is sent 3 (NACK3) are ceased, indicate that retransmitting data bit number is equal to the first bit number for passing data, i.e., equal to 21504；Wherein, T0= 0.3, T1=0.6, errored block rate is the wrong Turbo code block number received in transmission data and all Turbo code block number (etc. In ratio 16).
Example 6
The difference of this example and 1~example of example 5 is channel coding method, and channel coding method used is that LDPC is compiled Yard, either Polar is encoded or convolutional encoding.
The full name of LDPC code is low density parity check code (Low Density Parity Check Code, LDPC), it The class proposed by Robert doctors G.Gallager in 1963 has the linear block codes of sparse check matrix, does not only have Approach the superperformance of Shannon limits, and decoding complexity is relatively low, flexible structure, be widely used at present deep space communication, The fields such as fiber optic communication, satellite digital video and audio broadcasting.Structured LDPC code be by size be (mb × z) × (nb × z) Parity check matrix H definition, wherein parity check matrix H be by size for mb × nb basis matrix Hb, spreading factor z and Tri- variables of basic permutation matrix P are determined.Information sequence length k=(nb-mb) × z, code word size n=nb × z, code check r= k/n.All elements are replaced as full 0 square formation or basic permutation matrix P hb in basis matrix HbijAfter secondary power matirx is expanded Parity check matrix H, wherein hbijIt is the element in Hb.Basis matrix Hb is defined as follows,
Parity check matrix H is defined as follows after extension,
Wherein, if hbijEqual to -1, thenIt is z × z full 0 matrixes, is otherwise basic permutation matrix P hbijPower square Battle array, basic permutation matrix P is defined as follows,
LDPC code described above is the coding on two element field, includes the LDPC codings in polynary domain, it is assumed that GF (2) in domain (two element field) and domain GF (q) (q=2p) on check matrix corresponding to the LDCP codes that construct be H respectively2And Hq。H2In element It is 0 or 1, and HqIt is by element 0,1 ..., q-1 compositions, HqIn each element be H2The synthesis of middle p element.If set Domain GF (q) (q=2p) on a value a it is associated with 1 × p binary vector, then this vector substitute into HqIn, It can be obtained by HqBinary representation.In contrast to two element field LDPC code, polynary domain LDPC bipartite graph structure does not change, Short number of turns purpose increase between node is not resulted in, so that decoding performance is significantly improved.On this polynary domain Code construction can increase decoding complexity, but this increase is worth for the raising of decoding performance.LDPC code Decoding algorithm include following three major types：Hard decision decoding, Soft decision decoding and hybrid decoding.1. Hard decision decoding is by reception Sequence of real numbers first carries out hard decision, and obtained hard decision sequence delivery finally is entered into row decoding to Hard decision decoding device.2. soft sentence Certainly decoding can make full use of the channel information (Soft Inform ation) of reception, and channel information utilization rate is greatly improved, can be with Obtain outstanding error performance.3. the characteristics of hybrid decoding combines Soft decision decoding and Hard decision decoding.
Polarization code (Polar Code) has the building method determined, and is the first, is also known unique a kind of The channel coding method of channel capacity " can be reached " by Strict Proof.To N=2nIndividual independent binary system channel W, its Middle n is natural number.So-called combining channel operation and channel cutting operation are carried out, so as to obtain N number of front and rear polarization letter relied on Road.These polarisation channels are compared to the channel without polarization originally, and in the case where keeping constant with capacity, capacity can show pole Change phenomenon：The capacity increase of a part of channel, the capacity of another part channel reduces.Also, in theory it has been proved that to close Infinite multiple channels are carried out after polarization operations, i.e., when N is intended to infinity, and the capacity of a part of channel will tend to 1, and remaining The capacity of channel will tend to 0, meanwhile, the ratio that the channel that capacity is 1 accounts for total number of channels is just the discrete letter of former binary system The capacity in road.This phenomenon is referred to as channel-polarization (Channel Polarization).On the basis of channel-polarization, only need To tend to the free bit of 1 channel carrying information in a part of capacity, and remaining capacity tend to 1 channel with And capacity tends to the fixed bit of 0 channel to sending and receiving end all always.Represented with K for being transferred from the channel by bit Number, thus form the mapping relations one by one by K information bit to N number of transmission bit, this mapping is that polarization is compiled Code.Dependence between decoding end, each bit introduced during according to channel-polarization, is referred to as serial offset using a kind of (SC) algorithm enters row decoding, and coding and decoding complexity is O (NlogN).Polar codes employed in this example are：One The information sequence that a bit number is K0 is transmitted in channel, then only needing to the selection from N0 polarisation channel has minimal error This partial polarization channel is referred to as information channel, remaining channel then transmits one by K0 of probable value to transmit information sequence The fixed sequence program that a little receiving terminal and transmitting terminal agreements are known, the fixed sequence program is usually set as full null sequence, the part is believed Road is referred to as fixed channel.After the fixed channel of information channel and fixed sequence program is determined, because the number of information sequence is K0, and It is actual that N0 information have sent by N0 time slot of channel, one can be regarded as from K0 dimension spaces to the mapping of N0 dimension spaces, The mapping is exactly Polarization Coding, and code check is R0=K0/N0.In the polarization code, polarization code systematic bits refer to：Own after coding K0 bits in the Polarization Coding block of N0 bits.Wherein, the K0 bits are the order K0 bits since R1 bits, if Tail bit is reached also less than K0 bits, then is continued since first bit order, wherein R1 is greater than or equal to 0 integer；Or In the N0 bits of Polarization Coding block described in person, carry out arriving minispread greatly by the size of disturbance degree, most preceding K0 bits are exactly system Bit, described disturbance degree size refers to the J bit associated with ith bit in Polarization Coding block, is polarization as shown in figure 20 One example of coding, if code check is 1/2, from inputMiddle selection reliability highest 4 is inputted as information sequence Row, output polarization encoding block is 8 bit x1~x8, then the 1st bit x in output polarization encoding block1Disturbance degree size be 8, x2 Disturbance degree size be 4, the rear 5 bit x of Polarization Coding block3~x8Disturbance degree size be respectively [4 2422 1], then this When Polarization Coding block in systematic bits be [x1,x2,x3,x5], the input port of Polarization Coding is
In the cataloged procedure of convolutional code, to input information bits carry out group coding, the coding output bit of each code character It is not only relevant with the information bit of the packet, it is relevant also with the information bit of other packets of previous instant.And, in convolutional code Decoding during, obtain decoding information in the packet that can be not only received from current time, will also be from the packet of forward-backward correlation Middle extraction relevant information.Just because of the correlation that each group is taken full advantage of in the cataloged procedure of convolutional code so that convolutional code With fairly good performance gain.Convolutional code described in this example uses the tail biting convolutional encoding method defined in LTE system, about Shu Changdu is that the tail biting convolutional encoding that 7, code check is 1/3 is as shown in figure 12.The initial value of the shift register of encoder is set to The last corresponding value of 6 information bits of inlet flow so that shift register it is initial identical with end-state.Therefore, s is used0, s1,s2,...,s5The shift register of presentation code device, then shift register initial value is arranged to：si=c(K-1-i).Coding The output stream of deviceWithFirst, second, and third verification data stream is corresponded to respectively.Three data flows are also To be interleaved, then be collected by bit respectively through subcode block interleaver, the packet encoder method in this example is in bit Carried out after collecting, obtain the verification bag of corresponding bits number.
Example 7
According to the one side of this patent, for LTE mobile communication system or following 5th Generation Mobile Communication System, number It is that base station sends data (downlink transfer business datum) to mobile subscriber according to transmission direction, or data transfer direction is mobile uses Family sends data (uplink business datum) to base station.The mobile subscriber includes：Mobile device, be access terminal, user Terminal, subscriber station, subscriber unit, movement station, distant station, remote terminal, user agent, user's set, user equipment or some Other terms.The base station includes access point (AP) or is properly termed as node B (node B), radio network controller (RNC), evolved Node B (Evolved Node B, eNB), base station controller (BSC), base transceiver station (BTS), base station (BS), transceiver function (TF), Radio Router, wireless set, basic service unit (BSS), expansion service list First (ESS), radio base station (RBS), or some other terms.
According to an aspect of the present invention, this example provides a kind of data processing method, for transmitting terminal, the source number of processing It is as follows according to wrapping：The bit number of source data packet is that 3968, CRC sequence bits number is I=16 bits, and modulation system is QPSK, Order of modulation is 2, and encoder bit rate is 1/2.Process step includes following：
1st, segmentation is carried out to source data packet and obtains H1=8 one's share of expenses for a joint undertaking data blocks, be 496 ratios per the bit number of one's share of expenses for a joint undertaking data block It is special；
2nd, the CRC sequences that length is I=16 bits are added respectively to the H1=8 one's shares of expenses for a joint undertaking data block, bit number is obtained All it is the sub-block after 512 addition CRC sequences；
3rd, carry out Polarization Coding respectively to the H1=8 one's shares of expenses for a joint undertaking data block after the addition CRC sequences and obtain H1=8 parts of polarization Encoding block；
4th, to the H1=8 parts of Polarization Coding block whole bits or partial bit carry out packet encoder and obtain H2=1 parts Son verification is wrapped, and the H1=8 parts of Polarization Coding block and H2=1 one's shares of expenses for a joint undertaking verification bag constitute first biography data.
The vectorial μ that one length is N=1024NIt is G by generator matrixNPolar codes coding after obtain a length and be N vector xN：
xN=μNGN
Wherein, generator matrix GNMeet following formula：
F is F2N Kronecker powers, and F2Obtained by following formula：
And BNIt is bit reversal permutation matrix.IfSo elementEqual to element μbn...b2b1, its The subscript that middle b1 ..., bn are 0 or 1, b1b2...bn and bn...b2b1 are binary number expression.Cataloged procedure is foundation Export bit (being less than or equal to 1024) and 1024 inputs of polarization decomposing (Gaussian approximation scheduling algorithm) acquisition are carried out to channel parameter Reliability value, according to reliability just from vectorial μNMiddle selection highest 512 input is equal to subnumber after every part of addition CRC sequence According to 512 bits of block, then the output bit of one group of 1024 bit, as Polarization Coding block can be obtained.
In this example, in step 4, to most preceding 512 bits of the H1=8 parts of Polarization Coding block (i.e. equal to system Bit number, i.e. sub-block bit number add CRC sequence bits number) carry out packet encoder obtain H2=1 parts of bit numbers be The son verification bag of 512 bits, 0 ⊕ S ' of P0=S ', 1 ⊕ ... ⊕ S ' 7, S ', 0~S ' 7 are corresponded in Polarization Coding block S0~S7 respectively Most preceding 512 bit.Because verification packet length is 512 bits, then in order that obtaining always transmission data bit rate is equal to 1/2, so each The bit number of Polarization Coding block is 1024-512/8=960 bits.During Polarization Coding, it is thus necessary to determine that defeated for most preceding 64 Exit port is without port, by carrying out the reliability that channel-polarization calculates each input port, foundation to rear 960 output port Reliability size sorts, and the sub-block for then adding every part after CRC inputs respective input mouthful, you can obtain correspondence polarization Encoding block, bit number is all 960.Packet encoder is conducive to connecting all Polarization Coding blocks, can be utilized in receiving terminal The relation enters row decoding or iterative decoding, and each Polarization Coding block can be updated using the information of other encoding blocks, can Greatly to obtain coding gain, i.e., short code block is configured to by a channel coding blocks using simple code method, and then obtain Code length gain, and due to being simple XOR relation, the decoding complexity of receiving terminal is simultaneously little.
The Polarization Coding block and H2=1 parts of bit numbers that H1=8 part bit numbers after the Polarization Coding are 960 be 512 verification bag constitutes first biography data, and the first bit number for passing data is 8192, and QPSK modulation acquisition 4096 is carried out to it Individual constellation symbol, sends 4096 constellation symbols.
By above-described embodiment and example, the throughput performance of communication system is improved, so as to improve connecing for communication system Robustness is received, it is more excellent relative to traditional data encoding scheme performance.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be shown to be performed different from order herein The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (31)

1. a kind of data mixing retransmission processing method, for transmitting terminal, it is characterised in that including：
The feedback information of receiving terminal is received, according to the feedback information, data processing is carried out one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC is added respectively to many one's share of expenses for a joint undertaking data blocks CRC sequences, are then respectively channel encoded acquisition by many parts of channel coding blocks to the sub-block after the addition CRC sequences The original packet of composition, packet encoder is carried out to the original packet and obtains verification bag, many parts of channel codings block sum check bag is entered The selection of row bit obtains first biography data；Or,
It is determined that retransmitting data bit number, the re-transmission is selected from the first data acquisition system according to the re-transmission data bit number Data, or select from the first data acquisition system and the second data acquisition system the re-transmission data；
First data acquisition system at least includes the bit set of verification packet system bit；
Second data acquisition system at least includes the bit set of original packet check bit；
The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
2. the method as described in claim 1, it is characterised in that if the feedback information indicates to receive mistake, by re-transmission number According to being handled.
3. method as claimed in claim 2, it is characterised in that：When the re-transmission data bit number is less than or equal to N0 When, the re-transmission data are selected from the first data acquisition system；Wherein, N0 is positive integer.
4. the method as described in claim 1, it is characterised in that：Packet encoder is carried out to the original packet, including：
The bit set that the E bits of the same index of the E part packets included to the original packet are constituted carries out check code, The verification set that n parts of length are e bits is obtained, index constitutes i-th of son verification for i n-bit in the n parts of verification set Bag, i=0,1 ..., (e-1) obtains e one's shares of expenses for a joint undertaking verification bag, and the verification includes the e one's shares of expenses for a joint undertaking verification bag, wherein, E is described Number of data packets in original packet, n is the packet bit number in the original packet, and e is greater than 0 integer, and the verification is compiled Code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
5. method as claimed in claim 4, it is characterised in that when check code is encoded using single-parity check, the school Test bag and include 1 son verification bag.
6. the method as described in claim 1, it is characterised in that first data acquisition system includes at least one of：
Verify all bits, all systematic bits of verification bag of bag.
7. the method as described in claim 1, it is characterised in that second data acquisition system includes at least one of：
It is all that all check bits of original packet, all bits of original packet, all check bits of original packet and verification are wrapped Check bit.
8. method as claimed in claim 3, it is characterised in that any part of packet bit number in data is passed headed by the N0 T times or verification bag in T times of any one's share of expenses for a joint undertaking verification packet system bit number, wherein, T is positive integer.
9. method as claimed in claim 3, it is characterised in that when the re-transmission data bit number is more than N0, from first The re-transmission data are selected in data acquisition system and the second data acquisition system, are determined to retransmit each one's share of expenses for a joint undertaking in data according at least one of Verify the bit number of bag and the bit number of each part packet：Head pass number of data packets in data total bit number mesh, original packet, The bit number of any data bag, re-transmission data total bit number mesh, order of modulation, re-transmission data resource number in original packet；Its In, N0 is positive integer.
10. method as claimed in claim 9, it is characterised in that the total bit number of many one's share of expenses for a joint undertaking verification bags in the re-transmission data Mesh is equal to the first data total bit number mesh that passes and retransmits all many parts of packets total bit number purpose differences in data with described；Or Person, equal to the retransmission resource number and the order of modulation product with it is described re-transmission data in all many parts of packets always than The difference of special number；Or, it is total equal to the re-transmission data total bit number mesh and all many parts of packets in the re-transmission data The difference of bit number.
11. the method as described in claim 1, it is characterised in that the re-transmission data bit number includes at least one of：
The product of retransmission resource number and order of modulation；Head passes data total bit number mesh；A default positive integer.
12. the method as described in claim 1, it is characterised in that also include：The transmitting terminal receives the feedback letter of receiving terminal Breath, if the feedback information indicates garbled-reception, the re-transmission data bit number is greater than or equal to first pass in data Any part of packet bit number and pass data total bit number one integer of purpose less than or equal to first.
13. method as claimed in claim 12, it is characterised in that the feedback information at least includes 2 kinds of error conditions, is used for At least indicate that it is one below to retransmit data bit number：Head passes data total bit number mesh, the first any number evidence passed in data The bit number of bag.
14. the method as described in claim 1, it is characterised in that also include：
The transmitting terminal receives the feedback information of receiving terminal, and data bit number set is retransmitted from default according to the feedback information It is middle to determine to retransmit data bit number, wherein, presetting the set of re-transmission data bit number includes a element, presets and retransmits data In bit number set first element value be equal to 0, and the i-th -1 element value be less than the i-th element value, i=2 ..., (a-1), a is big In 1 integer.
15. method as claimed in claim 14, it is characterised in that in the default re-transmission data bit number set, second Element value is equal to the first bit number for passing any part of packet in data.
16. method as claimed in claim 14, it is characterised in that in the default re-transmission data bit number set, i-th yuan Plain value adds Δ D equal to the i-th -1 element value, wherein, i=2 ..., (a-1), Δ D is greater than 1 integer.
17. method as claimed in claim 14, it is characterised in that in the default re-transmission data bit number set, second Element value is more than or equal to the first bit number for passing any part of packet in data, and tail element value is more than or equal to first pass Data total bit number mesh.
18. the method as described in claim 1, it is characterised in that if the feedback information indicates that data receiver is correct, by source Data packet mode is handled.
19. the method as any one of claim 1 to 18, it is characterised in that E number evidences are included in the original packet Channel coding blocks after Cj parts of codings are included in bag, wherein jth part packet；The original packet check bit is that own in original packet The check bit of channel coding blocks, the verification packet system bit is that original packet systematic bits progress packet encoder is obtained, original packet Systematic bits are the systematic bits of all channel coding blocks in original packet, and verification bag check bit is that original packet check bit is carried out Packet encoder is obtained；Wherein, E is positive integer, j=0,1 ..., (E-1), Cj is positive integer；The channel coding is following coding staff One of formula：Turbo codings, LDPC codings, convolutional encoding, Polar coding.
20. a kind of data mixing retransmission processing method, for receiving terminal, it is characterised in that including：
The transmission data of receiving end/sending end are gone forward side by side capable decoded；
If the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used to indicate that the transmitting terminal is pressed One of in the following manner carries out data processing：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC is added respectively to many one's share of expenses for a joint undertaking data blocks CRC sequences, are then respectively channel encoded acquisition by many parts of channel coding blocks to the sub-block after the addition CRC sequences The original packet of composition, packet encoder is carried out to the original packet and obtains verification bag, many parts of channel codings block sum check bag is entered The selection of row bit obtains first biography data；Or,
It is determined that retransmitting data bit number, the re-transmission is selected from the first data acquisition system according to the re-transmission data bit number Data, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system is at least Bit set including verifying packet system bit；Second data acquisition system at least includes the sets of bits of original packet check bit Close；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
21. method as claimed in claim 20, it is characterised in that also include：
If the transmission data errors block rate of the reception is equal to 0, send feedback information 0, for indicating transmitting terminal by source data packet Mode is handled；Otherwise, if the transmission data errors block rate of the reception is more than T (i-1) and less than or equal to Ti, feedback is sent Information i, for indicating that retransmitting data bit number is equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and T (i- 1)<Ti, feedback information i are i-th of elements in default feedback information set, and Di is default retransmits in data bit number set D I-th of element, Di is greater than 0 integer, and D (i-1)<Di；Predetermined threshold value set T includes a element and wherein first and tail member Element is worth respectively equal to 0 and 1, and presetting feedback information set includes a element, and presetting the set of re-transmission data bit number includes a Element, a is greater than 1 integer, and the errored block rate is that all errored block numbers received in Q parts of transmission data are received with described The ratio of all channel coding blocks numbers in Q parts of transmission data, wherein, Q is positive integer.
22. method as claimed in claim 21, it is characterised in that in the default re-transmission data bit number set D, i-th Element value adds Δ D equal to the i-th -1 element value, wherein, i=2 ..., (a-1), Δ D is greater than 1 integer.
23. method as claimed in claim 21, it is characterised in that in the default re-transmission data bit number set D, second Element value D1 is equal to the first bit number for passing any part of packet in data, and D (a-1) is more than or equal to head and passes the total bit of data Number.
24. a kind of data mixing retransmission process device, is arranged at transmitting terminal, it is characterised in that including：
First receiving module, is set to the feedback information of receiving terminal；
Head passes data processing module, including：Cutting unit, is set to carry out source data packet many one's share of expenses for a joint undertaking data blocks of segmentation acquisition； Adding device, is set to add cyclic redundancy check (CRC) sequence respectively to many one's share of expenses for a joint undertaking data blocks；Channel encoding unit, if It is set to be respectively channel encoded the sub-block after the addition CRC sequences and obtains the original being made up of many parts of channel coding blocks Begin bag；Packet encoder unit, is set to carry out the original packet packet encoder acquisition verification bag；First bit selecting unit, is set First biography data are obtained to carry out bit selection to many parts of channel coding block sum checks bag；
Data processing module is retransmitted, including：Determining unit, is set to determine to retransmit data bit number；The selection of second bit is single Member, is set to select the re-transmission data from the first data acquisition system according to the re-transmission data bit number, or from first The re-transmission data are selected in data acquisition system and the second data acquisition system；
First data acquisition system at least includes the bit set of verification packet system bit；Second data acquisition system at least includes The bit set of original packet check bit；The original packet includes many parts of packets, and the verification bag is that the original packet is entered Row packet encoder is obtained.
25. device as claimed in claim 24, it is characterised in that：The second bit selecting unit, is also configured to when described When retransmitting data bit number less than or equal to N0, the re-transmission data are selected from the first data acquisition system；Wherein, N0 is just Integer.
26. device as claimed in claim 24, it is characterised in that：The re-transmission data processing module also includes packet encoder list Member；The packet encoder unit includes check code subelement and verification bag obtains subelement；
The check code subelement, is set to the E bit structures of the same index of the E part packets included to the original packet Into bit set carry out check code, obtain the verification set of n part length for e bits；
The verification bag obtains subelement, is set to index in the n parts of verification set and constitutes i-th of son verification for i n-bit Bag, i=0,1 ..., (e-1) obtains e one's shares of expenses for a joint undertaking verification bag, and the verification includes the e one's shares of expenses for a joint undertaking verification bag, wherein, E is described Number of data packets in original packet, n is the packet bit number in the original packet, and e is greater than 0 integer, and the verification is compiled Code is using one of following coded system：Single-parity check coding, Bose-Chaudhuri-Hocquenghem Code, RM codings, RS codings.
27. device as claimed in claim 25, it is characterised in that the second bit selecting unit, is also configured to when described When retransmitting data bit number more than N0, the re-transmission data are selected from the first data acquisition system and the second data acquisition system, according to At least one of determines to retransmit the bit number of the bit number of each one's share of expenses for a joint undertaking verification bag and each part packet in data：Head passes number According to the bit number of any data bag, re-transmission data total bit number in number of data packets, original packet in total bit number mesh, original packet Mesh, order of modulation, re-transmission data resource number；Wherein, N0 is positive integer.
28. device as claimed in claim 24, it is characterised in that the second bit selecting unit, is also configured to when reception The feedback information of receiving terminal indicates garbled-reception, then the re-transmission data bit number is greater than or equal to first pass in data The bit number of any part of packet and pass data total bit number one integer of purpose less than or equal to first.
29. device as claimed in claim 24, it is characterised in that the second bit selecting unit, also sets up according to reception The feedback information of receiving terminal determines re-transmission data bit number from default re-transmission data bit number set, wherein, preset weight Passing the set of data bit number includes a element, presets the header element value in re-transmission data bit number set equal to 0, and the I-1 element values are less than the i-th element value, and i=2 ..., (a-1), a is greater than 1 integer.
30. a kind of data mixing retransmission process device, is arranged at receiving terminal, it is characterised in that including：
Second receiving module, the transmission data for being set to receiving end/sending end are gone forward side by side capable decoded；
Feedback module, if being set to the decoded result mistake, to transmitting terminal send feedback information, the feedback information is used to refer to Show that the transmitting terminal is handled one of in the following manner：
Segmentation is carried out to source data packet and obtains many one's share of expenses for a joint undertaking data blocks, CRC is added respectively to many one's share of expenses for a joint undertaking data blocks CRC sequences, are then respectively channel encoded acquisition by many parts of channel coding blocks to the sub-block after the addition CRC sequences The original packet of composition, packet encoder is carried out to the original packet and obtains verification bag, many parts of channel codings block sum check bag is entered The selection of row bit obtains first biography data；Or,
It is determined that retransmitting data bit number, the re-transmission is selected from the first data acquisition system according to the re-transmission data bit number Data, or select from the first data acquisition system and the second data acquisition system the re-transmission data；First data acquisition system is at least Bit set including verifying packet system bit；Second data acquisition system at least includes the sets of bits of original packet check bit Close；The original packet includes many parts of packets, and the verification bag is to carry out packet encoder acquisition to the original packet.
31. device according to claim 30, it is characterised in that the feedback module, is also configured to：If the reception Transmit data errors block rate and be equal to 0, send feedback information 0, for indicating that transmitting terminal is handled by source data packet mode；It is no Then, if the transmission data errors block rate of the reception is more than T (i-1) and less than or equal to Ti, send feedback information i, for indicating Retransmit data bit number and be equal to Di；Wherein, Ti is predetermined threshold value set T i-th of element, and T (i-1)<Ti, feedback information I is i-th of element in default feedback information set, and Di is i-th of element in default re-transmission data bit number set D, and Di is Integer more than 0, and D (i-1)<Di；Predetermined threshold value set T includes a element and wherein first and tail element value is respectively equal to 0 He 1, presetting feedback information set includes a element, and presetting the set of re-transmission data bit number includes a element, and a is greater than 1 Integer, the errored block rate is that the Q parts of all errored block numbers received in transmission data receive institute in transmission data with described Q parts There is the ratio of channel coding blocks number, wherein, Q is positive integer.
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