CN110417519A - A kind of data transmission method and device - Google Patents

A kind of data transmission method and device Download PDF

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Publication number
CN110417519A
CN110417519A CN201810402561.2A CN201810402561A CN110417519A CN 110417519 A CN110417519 A CN 110417519A CN 201810402561 A CN201810402561 A CN 201810402561A CN 110417519 A CN110417519 A CN 110417519A
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China
Prior art keywords
encoding block
check results
block group
data
transmitting terminal
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Granted
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CN201810402561.2A
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Chinese (zh)
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CN110417519B (en
Inventor
王俊伟
武雨春
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201810402561.2A priority Critical patent/CN110417519B/en
Priority to PCT/CN2019/084149 priority patent/WO2019206197A1/en
Publication of CN110417519A publication Critical patent/CN110417519A/en
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Publication of CN110417519B publication Critical patent/CN110417519B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end

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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

A kind of data transmission method and device, to solve the retransmission technique based on CBG, the lower problem of retransmission efficiency.The described method includes: receiving end receives the re-transmission data that transmitting terminal is sent, the re-transmission data include at least one first encoding block group, and each first encoding block group includes at least one encoding block.The receiving end decodes the encoding block for including in the re-transmission data.The receiving end sends the corresponding decoding check results of N number of second encoding block group to the transmitting terminal, N number of second encoding block group is that the receiving end is determined based on the re-transmission data, when the corresponding decoding check results of at least one encoding block are mistake in a second encoding block group, the corresponding decoding check results of second encoding block group are NAK, and otherwise the corresponding decoding check results of the second encoding block group are ACK.

Description

A kind of data transmission method and device
Technical field
This application involves field of communication technology more particularly to a kind of data transmission methods and device.
Background technique
Next Generation Wireless Technology (next radio, NR) communication system long term evolution (long term evolution, LTE it on the basis of the ACK/NAK feedback technique in) based on transmission block (transport block, TB), introduces based on coding The ACK/NAK feedback technique of block group (code block group, CBG), wherein the data that ACK indicates that confirmation is sent have connect By errorless, NAK indicate confirmation data have been received by but the data there are mistakes.
ACK/NAK feedback technique based on CBG is that transmitting terminal carries out cyclic redundancy check when transmitting TB, by TB Code (cyclic redundancy check, CRC) adds and the TB Jing Guo CRC check is divided into multiple encoding block (code Block, CB).Then each CB is subjected to CRC addition, and several encoding block groups will be divided by multiple CB of CRC addition (code block group, CBG) is scheduled and transmits, and includes at least one CB after CRC check in each CBG. Receiving end is based on CBG and carries out feeding back ACK/NAK information, wherein if there are the CB of check errors in some CBG, is directed to the CBG NAK information is fed back, if all CB verify success in the CBG, is directed to CBG feeding back ACK information.Transmitting terminal is according to receiving HARQ information retransmits the CBG for being fed back to NAK information.
Currently, the retransmission technique based on CBG, retransmission efficiency are lower.
Summary of the invention
The application provides a kind of data transmission method and device, to solve the retransmission technique based on CBG, retransmission efficiency compared with Low problem.
In a first aspect, this application provides a kind of data transmission methods, which comprises receiving end receives transmitting terminal sheet Secondary transmission first retransmit data, and to this receive first re-transmission data in include CB decode, described first It includes right respectively for the decoding check results of NAK in the last received N number of decoding check results of the transmitting terminal for retransmitting data The first CBG answered, N number of decoding check results are the re-transmission data that the receiving end is directed to transmitting terminal last time transmission Feedback, each first CBG includes at least one CB, and the N is the integer greater than 0.The receiving end is to the transmission End sends the corresponding decoding check results of N number of 2nd CBG, and N number of 2nd CBG is the receiving end based on this reception To the first re-transmission data in include CB determine that and the CB for including in the 2nd CBG of any two is not overlapped, when one When the corresponding decoding check results of at least one CB are mistake in a 2nd CBG, the corresponding decoding check results of the 2nd CBG are NAK, otherwise the corresponding decoding check results of the 2nd CBG are ACK.The receiving end receives the second weight that the transmitting terminal retransmits Data are passed, the second re-transmission data include the decoding for being NAK in this received N number of decoding check results of the transmitting terminal Corresponding 2nd CBG of check results.Receiving end is by retransmitting data weight based on first received in the embodiment of the present application Newly determine N number of 2nd CBG, and feed back the corresponding decoding check results of N number of 2nd CBG redefined, due to this N number of the Two CBG are to retransmit determined by data based on first, and first retransmits data as the last received N number of decoding verification of transmitting terminal As a result corresponding first CBG of NAK in, it is seen that the quantity for the first CBG for including in the first re-transmission data is no more than N.When When the quantity for the first CBG for including in first re-transmission data is less than N, the CB number for including of the 2nd CBG less than including in the first CBG CB number so that transmitting terminal can obtain the corresponding decoding check results of N number of 2nd CBG when retransmitting, so that transmitting terminal can be with CB transmission is carried out according to the 2nd CBG, since the CB number for including in the 2nd CBG is reduced compared to the first CBG CB number for including, Therefore the retransmission efficiency of data can preferably be improved.With the first re-transmission data that receiving end receives include CBG1 and CBG2 is Example, wherein CBG1 includes 4 CB for being identified as 0-3, and CBG2 includes 3 CB for identifying 4-6, and receiving end is by CBG1 and CBG2 packet The each CB included repartitions to obtain CBG ' 1, CBG ' 2, CBG ' 3, CBG ' 4, wherein CBG ' 1 include be identified as 0 and 1 CB, CBG ' 2 includes the CB for being identified as 4 and 5 including CB, the CBG ' 3 for being identified as 2 and 3, and CBG ' 4 includes the CB for being identified as 6, if marked as 2 CB decoding error, into the HARQ of transmitting terminal transmission, the corresponding decoding check results of CBG ' 2 are NAK, therefore transmitting terminal is in weight CBG ' 2 is sent when biography, and the corresponding decoding check results of CBG1 are in the HARQ that receiving end is sent to transmitting terminal in the prior art NAK, therefore transmitting terminal needs to send CBG1 when retransmitting, i.e. transmitting terminal needs to retransmit 4 CB, and in the embodiment of the present application Transmitting terminal need to only send 2 CB, it is seen that can reduce the data volume sent when re-transmission.
In a kind of possible design, h the 2nd CBG in N number of 2nd CBG respectively include a CB, described N number of Other the 2nd CBG in addition to the h the 2nd CBG in 2nd CBG respectively include b CB.Wherein, the h meets as follows Formula:
H=mod (P, N).
The P be this receive it is described first re-transmission data in include all CB quantity.The a meets as follows Formula:
The b meets following formula:
It, can be with when receiving end is based on the first re-transmission data based on method described in above-mentioned design and redefines N number of two CBG Keep the CB number for including in each 2nd CBG as uniform as possible, i.e., the CB number that the 2nd CBG of any two includes at most differs 1.Due to The quantity for the first CBG for including in first re-transmission data is usually less than N, can be made in each 2nd CBG by the above method Including CB number all reduced compared to any one the first CBG CB number for including, so that transmitting terminal is when retransmitting, according to the Two CBG carry out CB transmission, can preferably improve the retransmission efficiency of data.
In a kind of possible design, described first retransmits the default mark of carrying in data, and the default mark is for referring to Show that the corresponding decoding check results of N number of 2nd CBG are fed back in the receiving end.In above-mentioned design, receiving end can be The corresponding decoding check results of N number of 2nd CBG are fed back under the instruction of transmitting terminal, to the transmitting terminal so as to unified receiving end The re-transmission rule used with transmitting terminal.
Second aspect, this application provides a kind of data transmission methods, which comprises transmitting terminal is sent to receiving end First retransmits data, and the first re-transmission data include in the last received N number of decoding check results of the transmitting terminal for NAK Corresponding first CBG of decoding check results, N number of decoding check results be the receiving end be directed to the transmitting terminal The re-transmission data feedback that last time sends, each first CBG includes at least one CB, and the N is the integer greater than 0. The transmitting terminal receives the corresponding decoding check results of N number of 2nd CBG that the receiving end is sent, N number of 2nd CBG It is decoded for the receiving end based on the CB for including in the first re-transmission data received to this and this is received The CB for including in the first re-transmission data determines that and the CB for including in the 2nd CBG of any two is not overlapped, when one the When the corresponding decoding check results of at least one CB are mistake in two CBG, the corresponding decoding check results of the 2nd CBG are NAK, Otherwise the corresponding decoding check results of the 2nd CBG are ACK.The first re-transmission data are divided into the N by the transmitting terminal A 2nd CBG.The transmitting terminal retransmits second to the receiving end and retransmits data, and the second re-transmission data include the transmission Hold corresponding 2nd CBG of decoding check results for being NAK in this received N number of decoding check results.The application is implemented The first re-transmission data are divided into N number of 2nd CBG by transmitting terminal in example, and feed back the determining corresponding decoding of N number of 2nd CBG Check results, since N number of 2nd CBG is to retransmit determined by data based on first, and first retransmits data as on transmitting terminal one Corresponding first CBG of NAK in secondary received N number of decoding check results, it is seen that include in the first re-transmission data first The quantity of CBG is not more than N.When the quantity for the first CBG for including in the first re-transmission data is less than N, the CB for including of the 2nd CBG Number is less than the CB number for including in the first CBG.Transmitting terminal carries out CB transmission according to the 2nd CBG when retransmitting, due to wrapping in the 2nd CBG The CB number included is reduced compared to the first CBG CB number for including, therefore can preferably improve the retransmission efficiency of data.
In a kind of possible design, h the 2nd CBG in N number of 2nd CBG respectively include a CB, described N number of Other the 2nd CBG in addition to the h the 2nd CBG in 2nd CBG respectively include b CB.Wherein, the h meets as follows Formula:
H=mod (P, N)；
The P is the quantity for all CB for including in the first re-transmission data.The a meets following formula:
The b meets following formula:
When first re-transmission data are redefined N number of two CBG based on method described in above-mentioned design by transmitting terminal, it can make The CB number for including in each 2nd CBG is as uniform as possible, i.e., the CB number that the 2nd CBG of any two includes at most differs 1.Due to The quantity for the first CBG for including in one re-transmission data is usually less than N, can to wrap in each 2nd CBG by the above method The CB number included is all reduced compared to any one the first CBG CB number for including, thus transmitting terminal retransmit when, according to second CBG carries out CB transmission, can preferably improve the retransmission efficiency of data.
In a kind of possible design, described first, which retransmits data, carries default mark, and the default mark is used to indicate Feed back the corresponding decoding check results of N number of 2nd CBG in the receiving end.In above-mentioned design, transmitting terminal can pass through The mode of default mark is carried in retransmitting data to indicate that the corresponding decoding check results of N number of 2nd CBG are fed back in receiving end, The re-transmission rule used so as to unified receiving end and transmitting terminal.
The third aspect, this application provides a kind of data transmission methods, which comprises receiving end receives transmitting terminal hair First sent retransmits data, and the first re-transmission data are that the transmitting terminal is directed to the original number for being initially sent to the receiving end According to the data retransmitted, the initial data includes G CBG, and each CBG includes at least one CB, and the G is greater than 0 Integer.The receiving end decodes the CB for including in the first re-transmission data, and retransmits data packet according to described first The corresponding decoding verification knot of CB that the corresponding decoding check results of the CB included include to the initial data of storage Fruit carries out corresponding update.When described first retransmits and carry default mark in data, Xiang Suoshu transmitting terminal is sent for the receiving end The corresponding decoding check results of the G CBG, when the corresponding decoding check results of at least one CB are mistake in a CBG It mistakes, the corresponding decoding check results of the CBG are NAK, and otherwise the corresponding decoding check results of the CBG are ACK, the pre- bidding Will is used to indicate the receiving end and feeds back the corresponding decoding check results of the G CBG to the transmitting terminal.The reception It holds and receives the second re-transmission data that the transmitting terminal is sent, the second re-transmission data are translated for G that the transmitting terminal receives It is CBG corresponding to the decoding check results of NAK in code check result.The HARQ feedback that transmitting terminal may send receiving end Some decoding check results in code book are NAK error detection into ACK, and transmitting terminal is caused by the decoding check results to be NAK pairs The CBG answered is not transmitted when retransmitting.Such as, " 1010 " are detected as " 1110 " by transmitting terminal, therefore are existed in second CBG and translated Code mistake CB, but transmitting terminal retransmit when without send the CBG.Receiving end retransmits number first in the embodiment of the present application According to G the first CBG corresponding decoding check results just passed are fed back when carrying default mark to transmitting terminal, pass through this side Formula, receiving end can feed back the G just passed the corresponding decoding check results of the first CBG in later retransmission feedback again, from And transmitting terminal is allowed to correct it after receiving the G corresponding decoding check results of the first CBG that receiving end is fed back again The decoding check results of preceding detection mistake, so as to retransmit the CB for the decoding error missed before to receiving end.Example Such as, " 1010 " are detected as " 1110 " by transmitting terminal, therefore transmitting terminal does not have to send the decoding for including in second CBG when retransmitting The CB of mistake, and during later retransmission, the decoding verification of initial data is fed back in receiving end again under the instruction of transmitting terminal Exist in second CBG as a result, the decoding check results for the initial data for feeding back transmitting terminal again according to receiving end determine The CB of decoding error, so that the CB of the decoding error is sent to receiving end in retransmit next time.
Fourth aspect, this application provides a kind of data transmission methods, comprising: transmitting terminal sends the first number to receiving end According to described first retransmits the default mark of carrying in data, and the default mark is used to indicate the receiving end to the transmitting terminal The corresponding decoding check results of G CBG are fed back, first data are that the transmitting terminal connects for described in initial be sent to The data that the initial data of receiving end is retransmitted, the initial data include G CBG, and each CBG includes at least one CB, institute Stating G is the integer greater than 0.When carrying default mark in first data, the transmitting terminal receives the receiving end and sends The corresponding decoding check results of the G CBG, the corresponding decoding check results of the G CBG are the reception It holds and the CB for including in the first re-transmission data is decoded, and respectively corresponded according to the CB that the first re-transmission data include Decoding check results corresponding update is carried out to the corresponding decoding check results of CB that the initial data of storage includes It obtains afterwards.When the corresponding decoding check results of at least one CB are mistake in a CBG, the corresponding decoding verification of the CBG It as a result is NAK, otherwise the corresponding decoding check results of the CBG are ACK.The transmitting terminal sends the second number to the receiving end According to the second re-transmission data are that the decoding check results in decoding check results that the transmitting terminal receives by NAK are right The CBG answered.Some decoding check results in the HARQ feedback code book that may send receiving end for transmitting terminal are NAK wrong Error detection causes transmitting terminal by the decoding check results to be the problem of corresponding CBG of NAK is not transmitted when retransmitting at ACK. Transmitting terminal during later retransmission by indicating that receiving end feeds back the G just passed the first CBG points again in the embodiment of the present application Not corresponding decoding check results, in this way, transmitting terminal can receive the G a first that receiving end is fed back again After the corresponding decoding check results of CBG, the decoding check results of mistake are detected before correcting, so as to translate what is missed before The CB of code mistake is retransmitted to receiving end.
5th aspect, this application provides a kind of reception devices, comprising: receiving unit, for receiving this hair of transmitting terminal First sent retransmits data, and the first re-transmission data include in the last received N number of decoding check results of the transmitting terminal For corresponding first CBG of decoding check results of NAK, N number of decoding check results are the receiving end for described The re-transmission data feedback that the transmitting terminal last time sends, each first CBG includes at least one CB, and the N is greater than 0 Integer.Decoding unit, the CB for including in this is received to the receiving unit the first re-transmission data are decoded.Hair Unit is sent, for sending the corresponding decoding check results of N number of 2nd CBG to the transmitting terminal, N number of 2nd CBG is The CB for including in the first re-transmission data that the terminal device is received based on this determines, and any two second The CB for including in CBG is not overlapped, should when the corresponding decoding check results of at least one CB are mistake in the 2nd CBG The corresponding decoding check results of 2nd CBG are NAK, and otherwise the corresponding decoding check results of the 2nd CBG are ACK.The reception Unit is also used to receive second from the transmitting terminal and retransmits data, and the second re-transmission data include the transmitting terminal sheet Corresponding 2nd CBG of decoding check results for being NAK in secondary received N number of decoding check results.
In a kind of possible design, h the 2nd CBG in N number of 2nd CBG respectively include a CB, described N number of Other the 2nd CBG in addition to the h the 2nd CBG in 2nd CBG respectively include b CB.Wherein, the h meets as follows Formula:
H=mod (P, N)；
The P be this receive it is described first re-transmission data in include all CB quantity；The a meets as follows Formula:
The b meets following formula:
In a kind of possible design, described first retransmits the default mark of carrying in data, and the default mark is for referring to Show that the terminal device feeds back the corresponding decoding check results of N number of 2nd CBG.
6th aspect, this application provides a kind of sending devices, comprising: transmission unit, for sending first to receiving end Data are retransmitted, the first re-transmission data include translating for NAK in the last received N number of decoding check results of the transmitting terminal Corresponding first CBG of code check result, N number of decoding check results are the receiving end on the transmitting terminal one The re-transmission data feedback of secondary transmission, each first CBG includes at least one CB, and the N is the integer greater than 0.It receives Unit, for receiving the corresponding decoding check results of N number of 2nd CBG from the receiving end, N number of 2nd CBG It is decoded for the receiving end based on the CB for including in the first re-transmission data received to this and this is received The CB for including in the first re-transmission data determines that the CB for including in the 2nd CBG of any two is not overlapped, when one second When the corresponding decoding check results of at least one CB are mistake in CBG, the corresponding decoding check results of the 2nd CBG are NAK, no Then the corresponding decoding check results of the 2nd CBG are ACK.Division unit, for the first re-transmission data to be divided into the N A 2nd CBG.The transmission unit is also used to retransmit second to the receiving end and retransmits data, the second re-transmission data packet Include corresponding 2nd CBG of decoding check results for being NAK in this received N number of decoding check results of the transmitting terminal.
In a kind of possible design, h the 2nd CBG in N number of 2nd CBG respectively include a CB, described N number of Other the 2nd CBG in addition to the h the 2nd CBG in 2nd CBG respectively include b CB.Wherein, the h meets as follows Formula:
H=mod (P, N).
The P is the quantity for the first time retransmitting all CB for including in data.The a meets following formula:
The b meets following formula:
In a kind of possible design, described first, which retransmits data, carries default mark, and the default mark is used to indicate Feed back the corresponding decoding check results of N number of 2nd CBG in the receiving end.
7th aspect, this application provides a kind of reception devices, comprising: receiving unit, for receiving from transmitting terminal First retransmits data, and the first re-transmission data are that the transmitting terminal is directed to the initial data for being initially sent to the terminal device The data retransmitted, the initial data include G CBG, and each CBG includes at least one CB, and the G is whole greater than 0 Number.Decoding unit, for being decoded to the CB for including in the received first re-transmission data of the receiving unit.It updates single Member, the corresponding check results that decode of CB for including according to the first re-transmission data are to the initial data of storage Including the corresponding decoding check results of CB carry out corresponding update.Transmission unit, for being retransmitted in data described first When carrying default mark, Xiang Suoshu transmitting terminal sends the corresponding decoding check results of the G CBG, when in a CBG extremely When few corresponding decoding check results of a CB are mistake, the corresponding decoding check results of the CBG are NAK, and otherwise the CBG is corresponding Decoding check results be ACK.It is G described to transmitting terminal feedback that the default mark is used to indicate the terminal device The corresponding decoding check results of CBG.The receiving unit is also used to receive the transmitting terminal is sent second and retransmits number According to the second re-transmission data are the transmitting terminal receive G and decode the decoding check results institute for being NAK in check results Corresponding CBG.
Eighth aspect, this application provides a kind of sending devices, comprising: transmission unit, for sending first to receiving end Data are retransmitted, first data are that the network equipment is retransmitted for the initial data for being initially sent to the receiving end Data, the initial data includes G CBG, and each CBG includes at least one CB, and the G is the integer greater than 0.It receives single Member, for receiving the G CBG difference from the receiving end when described first retransmits and carry default mark in data Corresponding decoding check results, when the corresponding decoding check results of at least one CB are mistake in a CBG, the CBG is corresponding Decoding check results be NAK, otherwise the corresponding decoding check results of the CBG be ACK.The transmission unit is also used to institute It states receiving end and sends the second re-transmission data, the second re-transmission data are that the NAK in the decoding check results received is right respectively The CBG answered.It is corresponding to the network equipment feedback G CBG that the default mark is used to indicate the receiving end Decode check results.
9th aspect, this application provides a kind of terminal device, which includes transceiver, memory and processor, Program code of the memory for being executed needed for storage processor.Transceiver is used for sending and receiving data.Processor is for executing storage The program code that device is stored, specifically for executing any design, the third aspect or the third of first aspect or first aspect Method described in any design of aspect.
Tenth aspect, this application provides a kind of network equipment, which includes transceiver, memory and processor, Program code of the memory for being executed needed for storage processor.Transceiver is used for sending and receiving data.Processor is for executing storage The program code that device is stored, specifically for executing any design, the fourth aspect or the 4th of second aspect or second aspect Method described in any design of aspect.
Tenth on the one hand, present invention also provides a kind of computer readable storage medium, for being stored as executing above-mentioned the Any design, the third aspect or the third of any one of one side or first aspect design, second aspect or second aspect Computer software instructions used in the function of any design of any design of aspect, fourth aspect or fourth aspect, It is set comprising any one design, second aspect or any of second aspect for executing above-mentioned first aspect or first aspect Meter, any design of the third aspect or the third aspect, designed by the method for any design of fourth aspect or fourth aspect Program.
12nd aspect, the embodiment of the present application provides a kind of computer program product comprising instruction, when it is being calculated When being run on machine, so that computer executes any one design, second aspect or second of above-mentioned first aspect or first aspect Any design of aspect, any design of the third aspect or the third aspect, fourth aspect or any of fourth aspect set The meter method.
Detailed description of the invention
Fig. 1 is a kind of configuration diagram of communication system provided by the present application；
Fig. 2 is that a kind of encoding block provided by the present application constitutes the schematic diagram sent；
Fig. 3 is the schematic diagram of encoding block group division result provided by the present application；
Fig. 4 is the schematic diagram of encoding block group feedback result provided by the present application；
Fig. 5 is the schematic diagram that encoding block group provided by the present application decodes check results；
Fig. 6 is the schematic diagram of encoding block group feedback result provided by the present application；
Fig. 7 is a kind of flow diagram of data transmission method provided by the present application；
Fig. 8 is a kind of flow diagram of data transmission method provided by the present application；
Fig. 9 is the schematic diagram of encoding block group division result provided by the present application；
Figure 10 is the schematic diagram of encoding block group division result provided by the present application；
Figure 11 is the schematic diagram of encoding block group division result provided by the present application；
Figure 12 is a kind of flow diagram of data transmission method provided by the present application；
Figure 13 is a kind of flow diagram of data transmission method provided by the present application；
Figure 14 is a kind of structural schematic diagram of terminal device provided by the present application；
Figure 15 is a kind of structural schematic diagram of the network equipment provided by the present application；
Figure 16 is a kind of structural schematic diagram of device provided by the present application.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application make into One step it is described in detail.
Data transmission method provided by the present application can be applied in communication system.The framework of communication system as shown in Figure 1, Including base station 101 and terminal device 102, transmitting uplink data and downlink are carried out between base station 101 and terminal device 102 Data transmission.The invention relates to communication system can be all kinds of communication systems, for example, it may be long term evolution (long term evolution, LTE) is also possible to the 5th generation (5G) communication system, can also be LTE and 5G mixed architecture.
Wherein, base station 101 can be common base station (such as Node B or eNB), can be new wireless controller (new Radio controller, NR controller), it can be the gNode B (gNB) in 5G system, can be centralized network element (Centralized Unit), can be new wireless base station, can be radio frequency remoto module, can be micro-base station, can be After (relay), it can be distributed net element (Distributed Unit), can be receiving point (transmission Reception point, TRP) or transfer point (transmission point, TP) or any other radio reception device, But the embodiment of the present application is without being limited thereto.The access net includes at least one base station, wherein each base station can cover 1 or more A cell.
Terminal device 102, also referred to as user equipment (user equipment, UE), are that one kind provides a user voice And/or the equipment of data connectivity, for example, handheld device, mobile unit etc. with wireless connecting function.Common terminal For example, mobile phone, tablet computer, laptop, palm PC, mobile internet device (mobile internet Device, MID), wearable device, such as smartwatch, Intelligent bracelet, pedometer etc..
Next Generation Wireless Technology (next radio, NR) communication system long term evolution (long term evolution, LTE it on the basis of the ACK/NAK feedback technique in) based on transmission block (transport block, TB), introduces based on coding The ACK/NAK feedback technique of block group (code block group, CBG), i.e., to UE transmit data when, base station by TB into TB Jing Guo CRC check, is then divided by row cyclic redundancy check code (cyclic redundancy check, CRC) verification Multiple encoding blocks (code block, CB), and CRC check is carried out for each CB block.Base station when carrying out data transmission, Multiple CB blocks are divided into several CBG, is scheduled and transmits, as shown in Figure 2.After UE receives multiple CBG in a TB, point Safety pin carries out CRC checks to all CB for receiving, receiving end according to CBG unit feedback ACK/NAK information, it is, working as When CB in one CBG decodes correct, which is fed back to ACK, and otherwise the CBG is fed back to NAK.Wherein, ACK expression is sent Data received it is errorless, do not need base station re-transmission.NAK indicate data have been received by but the data there are mistakes, need base It stands and retransmits the CBG.The ACK/NAK information that base station receives UE feedback then retransmits the CBG for the CBG for being fed back to NAK, And the CBG for being fed back to ACK, then the CBG is not retransmitted.
Below by taking TB that base station is sent to UE points is 14 CB as an example, to be based between base station and UE CBG just pass, it is anti- Feedback, the process retransmitted are illustrated.Base station is configured high-level signaling to be carried out data transmission in a manner of CBG, and configures CBG Quantity be 4.14 CB are divided into 4 CBG by base station.Wherein, base station can make the CB number in each CBG when dividing CBG As far as possible uniformly, i.e. the CB number of any two CBG at most differs 1.Therefore, 4 CBG divided can be as shown in figure 3, divide It Wei not CBG0={ CB0,CB1,CB2,CB3, CBG1={ CB4,CB5,CB6,CB7, CBG2={ CB8,CB9,CB10, CBG3= {CB11,CB12,CB13}。
UE receives base station and just passes 4 CBG sent, and decodes to the CB for including in 4 CBG.Assuming that UE is determined CB5,CB6And CB12Decoding error, UE send to base station and just pass corresponding hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback code book, which is the corresponding decoding school 4 CBG It tests as a result, as shown in Figure 4, wherein CBG0In 4 CB decode correctly, then CBG0Corresponding decoding check results are ACK. CBG1In CB5,CB6Decoding error, then CBG1Corresponding decoding check results are NAK.CBG2In 4 CB decode correctly, Then CBG2Corresponding decoding check results are ACK.CBG3In CB12Decoding error, then CBG3Corresponding decoding check results are NAK.If indicating NAK with " 0 ", ACK is indicated with " 1 ", then just passing corresponding HARQ feedback code book is " 1010 ".
Base station carries out first time re-transmission, i.e., the decoding that will be received after receiving the just corresponding HARQ feedback code book of biography The corresponding CBG of NAK in check results is retransmitted to UE.As shown in figure 5, retransmitting CBG1={ CB4,CB5,CB6, CB7And CBG3={ CB11,CB12,CB13}。
UE retransmits the CBG of transmission receiving base station for the first time1={ CB4,CB5,CB6,CB7And CBG3={ CB11, CB12,CB13After, to CBG1={ CB4,CB5,CB6,CB7And CBG3={ CB11,CB12,CB13In include CB translated Code, it is assumed that determine CB5And CB12Decoding error, UE send to base station and retransmit corresponding HARQ feedback code book for the first time, and the HARQ is anti- Feedback code book is the corresponding decoding check results of 4 CBG, as shown in Figure 6, wherein due to CBG0And CBG2It was decoded in last time When have determined that including each CB decode correctly, therefore the CBG in retransmitting corresponding HARQ feedback code book for the first time0With And CBG2Corresponding decoding check results are still ACK.And CBG1In CB5Decoding error, then CBG1Corresponding decoding verification knot Fruit is NAK.CBG3In CB12Decoding error, then CBG3Corresponding decoding check results are NAK.Therefore it retransmits and corresponds to for the first time HARQ feedback code book be " 1010 ".
Base station carries out second and retransmits and subsequent heavy after receiving and retransmitting corresponding HARQ feedback code book for the first time It passes, wherein the process of second of re-transmission and later retransmission can be not repeated herein superfluous refering to the process that first time retransmits It states.14 CB can be decoded correct stopping later in UE and retransmitted by base station.Alternatively, base station can also reach in advance in number of retransmissions If maximum retransmission when stop retransmit.
It can be seen that base station when retransmitting data by the above-mentioned retransmission processes based on CBG, for the decoding school received The corresponding CBG of NAK in knot is tested, the CB in the CBG there are decoding error can only be determined, but not can determine that the CBG In which CB decoding correctly, which CB decoding error, therefore base station needs all to retransmit the CB for including in the CBG. If above base station is when retransmit for the first time, the CBG for being NAK for decoding check results1={ CB4,CB5,CB6,CB7, It can only determine CBG1={ CB4,CB5,CB6,CB7In there are the CB of decoding error, but be not aware that the CB of decoding error is CB5,CB6, therefore base station when retransmitting first time by CBG1={ CB4,CB5,CB6,CB7All retransmitted, so that decoding is just True CB4,CB7It is transmitted again, causes retransmission efficiency lower.Also, the corresponding HARQ of the data sent in retransmission processes is anti- It presents in code book, for the CBG for feeding back ACK before, in later retransmission feedback, it is still desirable to be fed back.For example, above UE receives the CBG sent when retransmitting for the first time1={ CB4,CB5,CB6,CB7And CBG3={ CB11,CB12,CB13After, In retransmitting corresponding HARQ feedback code book for the first time, the CBG including being fed back to ACK before0And CBG2, so that There are information redundancies for HARQ feedback code book.
Based on this, the application provides a kind of data transmission method and device, to solve the retransmission technique based on CBG, weight The lower problem of transfer efficiency.Wherein, method and apparatus are based on the same inventive concept, to be solved the problems, such as due to method and device Principle is similar, therefore the implementation of apparatus and method can be with cross-reference, and overlaps will not be repeated.
It is multiple involved in the application, refer to two or more.
In addition, it is necessary to understand, in the description of the present application, the vocabulary such as " first ", " second " are only used for distinguishing description Purpose, be not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.
Data transmission method provided by the present application is specifically described with reference to the accompanying drawing.
It is a kind of data transmission method flow chart provided by the present application referring to Fig. 7.This method can be applied to transmitting terminal to In retransmission processes after the first transmission initial data of receiving end, transmitting terminal can be base station, and receiving end can be terminal, In, transmitting terminal can be configured high-level signaling to be carried out data transmission in a manner of CBG, and the quantity for configuring CBG is N, and N is Integer greater than 0, this method comprises:
S701, transmitting terminal send first to receiving end and retransmit data.The first re-transmission data include on the transmitting terminal Corresponding first CBG of decoding check results for being NAK in primary received N number of decoding check results, N number of decoding school Testing result is the re-transmission data feedback that the receiving end is sent for the transmitting terminal last time, each first CBG packet Include at least one CB.
S702, receiving end receive the first re-transmission data of this transmission of transmitting terminal, and to the first re-transmission that this is received The CB for including in data is decoded.Wherein, receiving end can only decode undecoded correct CB in re-transmission data, It can be decoded to each CB for including in data is retransmitted.
S703, receiving end send HARQ feedback code book to transmitting terminal, which is that N number of 2nd CBG is right respectively The decoding check results answered.Wherein, receiving end can determine N number of 2nd CBG, any two second based on the first re-transmission data The CB for including in CBG is not overlapped.It, should when the corresponding decoding check results of at least one CB are mistake in the 2nd CBG The corresponding decoding check results of 2nd CBG are NAK, and otherwise the corresponding decoding check results of the 2nd CBG are ACK.
In one possible implementation, receiving end can be determined as follows N number of 2nd CBG:
Receiving end determines that the h in N number of 2nd CBG the 2nd CBG include a CB, removes the h second in N number of 2nd CBG Other the 2nd CBG except CBG are respectively corresponded including b CB.H can satisfy following formula:
H=mod (P, N).
Wherein, the quantity for all CB for including in the first re-transmission data.
A can satisfy following formula:
B can satisfy following formula:
Receiving end can determine that the preceding h in N number of 2nd CBG the 2nd CBG include a CB, remove the h in N number of 2nd CBG Other the 2nd CBG except a 2nd CBG respectively include b CB.Therefore, receiving end can be opened from first CB for retransmitting data Begin, be considered as the 2nd CBG per continuous a CB, until the quantity of the 2nd CBG reaches h, later, every continuous b CB is considered as one The CB number for including in a 2nd CBG, the 2nd CBG of any two of them is not overlapped mutually.
Alternatively, receiving end can also determine that the last h in N number of 2nd CBG the 2nd CBG include a CB, N number of 2nd CBG In other the 2nd CBG in addition to the h the 2nd CBG respectively include b CB.Therefore, receiving end can be from re-transmission data First CB starts, and is considered as the 2nd CBG per continuous a CB, until the quantity of the 2nd CBG reaches N-h, later, every company Continuous b CB is considered as the 2nd CBG, and the CB number for including in the 2nd CBG of any two of them is not overlapped mutually.
Certainly, receiving end can also determine that any h in N number of 2nd CBG the 2nd CBG include a CB, N number of 2nd CBG In other the 2nd CBG in addition to the h the 2nd CBG respectively include b CB, the embodiment of the present application is herein to h a second CBG is not specifically limited.
First re-transmission data are divided into N number of 2nd CBG by S704, transmitting terminal.Wherein, transmitting terminal retransmits data for first and draws It is divided into the method for N number of 2nd CBG, determines that the method for N number of 2nd CBG is identical based on the first re-transmission data with receiving end.
S705, transmitting terminal simultaneously retransmit the second re-transmission data to receiving end, and the second re-transmission data include the transmitting terminal Corresponding 2nd CBG of decoding check results for being NAK in this received N number of decoding check results.Transmitting terminal is receiving N When the corresponding decoding check results of a 2nd CBG, N number of decoding check results that receiving end is sent may be properly received, Some may also be decoded check results garbled-reception, such as detected ACK at NAK, or NAK is detected into ACK.Transmitting terminal exists The decoding check results received when being retransmitted according to itself, which are sent, retransmits data.
The embodiment of the present application in order to better understand has data transmission procedure below in conjunction with concrete application scene Body detailed description, as shown in Figure 8.
For convenience, in the embodiment of the present applicationIndicate i-th CBG, j=0,1 when jth time retransmits, 2 ..., wherein j=0 is corresponding just passes, i=1,2 ... NCBG, wherein NCBGFor the quantity for the CBG that transmitting terminal is configured by high-level signaling. Transmitting terminal is configured high-level signaling and is transmitted data in a manner of CBG, and the quantity for configuring CBG is 4, that is, NCBGIt is equal to 4。
14 CB are divided into 4 CBG according to preset rules by S801, transmitting terminal(0), and by 4 CBG(0)To receiving end into Row first transmission.Wherein, preset rules can be that P CB is divided into NCBGA CBG, wherein preceding mod (P, NCBG) a CBG is equal IncludingA CB, remaining CBG includeA CB.Therefore, transmitting terminal is according to the preset rules by 14 4 CBG that CB is divided(0)In, preceding mod (14,4)=2 CBG(0)IncludeA CB, residue 2 A CBG(0)IncludeA CB.Therefore 4 CBG(0), as shown in figure 9, being respectively
S802, receiving end pass 4 CBG of transmission at the beginning of receiving transmitting terminal(0)Later, to 4 CBG(0)In include CB It is decoded, determines CB5,CB6And CB12Decoding error.
S803, receiving end send the first HARQ feedback code book to transmitting terminal, and the first HARQ feedback code book is 4 CBG(0)Point Not corresponding decoding check results.In 4 CB decode correctly, thenCorresponding decoding check results are ACK。In CB5,CB6Decoding error, thenCorresponding decoding check results are NAK.In 4 CB Decoding is correct, thenCorresponding decoding check results are ACK.In CB12Decoding error, thenIt is corresponding Decoding check results be NAK.When each CBG corresponding decoding check results are fed back to transmitting terminal in receiving end, " 0 " table can be used Show NAK, indicate ACK with " 1 ", it is of course also possible to indicate NAK with " 1 ", indicates ACK with " 0 ", the embodiment of the present application is not done here It is specific to limit.NAK is indicated with " 0 " below, " 1 " indicates to be illustrated for ACK.Therefore, the first HARQ feedback code book is “1010”。
S804, transmitting terminal is after the first HARQ feedback code book for receiving receiving end transmission, according to first received HARQ feedback code book carries out first time re-transmission, i.e., retransmits to receiving end in the first HARQ feedback code book received corresponding to NAK CBG(0).By taking the first HARQ feedback code book that transmitting terminal receives is " 1010 " as an example, transmitting terminal is carrying out first time re-transmission When, it willIt is retransmitted to receiving end.
S805, receiving end are receiving transmitting terminal re-transmission Afterwards, right In include CB decoded, determine CB5And CB12Decoding error.
S806, receiving end send the second HARQ feedback code book to transmitting terminal, and the second HARQ feedback code book is 4 CBG(1)Point Not corresponding decoding check results.Wherein, 4 CBG(1)It is directed to for receiving end In include 7 CB divided based on preset rules described in step S801.4 CBG(1)In preceding mod (7,4)=3 CBG(1)IncludingA CB, 1 CBG of residue(1)IncludingA CB.Cause This 4 CBG(1)As shown in Figure 10, respectively In CB5Decoding error, thenCorresponding decoding verification It as a result is NAK.In 2 CB decode correctly, thenCorresponding decoding check results are ACK.In CB12Decoding error, thenCorresponding decoding check results are NAK.In CB decoding it is correct, thenIt is corresponding Decoding check results be ACK.Therefore, the second HARQ feedback code book is " 0101 ".
807, transmitting terminal, will after receiving the second HARQ feedback code book In include 7 CB be divided into 4 CBG based on preset rules described in step S801(1), I.e.
S808, transmitting terminal carry out second according to the second HARQ feedback code book received and retransmit, i.e. re-transmission receives CBG corresponding to NAK in second HARQ feedback code book(1).The the second HARQ feedback code book received with transmitting terminal is that " 0101 " is Example, transmitting terminal, will when carrying out second of re-transmissionTo receiving end into Row retransmits.
When receiving end confirms CB5And CB12When decoding error, transmitting terminal is sent in retransmission processes Totally 4 CB, and transmitting terminal needs in retransmission processes in the prior art Send CBG1={ CB4,CB5,CB6,CB7And CBG3={ CB11,CB12,CB13Totally 7 CB, it is seen that the embodiment of the present application can be with The data volume sent when retransmitting is reduced, so as to preferably improve retransmission efficiency.
S809, receiving end are receiving transmitting terminal re-transmission Afterwards, rightIn include CB decoded, and determine all decoding just Really.
S810, receiving end send third HARQ feedback code book to transmitting terminal, and third HARQ feedback code book is 4 CBG(2)Point Not corresponding decoding check results.Wherein, 4 CBG(2)It is directed to for receiving end In include 4 CB divided based on preset rules described in step S801.4 CBG(2)Wrap 1 CB is included, as shown in figure 11, respectively Due to 4 CBG(2)In include CB decode correctly, then 4 CBG(2)Corresponding decoding check results are equal For ACK.Therefore, third HARQ feedback code book is " 1111 ".
S811, transmitting terminal receives third HARQ feedback code book, and the third HARQ feedback code book received is " 1111 ", knot Beam data transmission.
Some decoding check results in the HARQ feedback code book that transmitting terminal may send receiving end are the inspection of ACK mistake NAK is surveyed into, transmitting terminal is caused to be transmitted the decoding check results again when retransmitting for the corresponding CBG of ACK.Such as, in step In S804, if the first HARQ feedback code book " 1010 " is detected as " 1000 " by transmitting terminal, transmitting terminal can be incited somebody to actionTo connecing Receiving end is retransmitted, whereinIn CB decode correctly, but retransmit when still transmitted. For this problem, transmitting terminal can be sent during later retransmission by receiving end in the embodiment of the present application HARQ feedback Code book detects the decoding check results of mistake before correcting, even transmitting terminal is due to by the first HARQ feedback code book " 1010 " are detected as " 1000 ", thus will It is retransmitted to receiving end, receive can be to incite somebody to action in the HARQ feedback code book of later retransmission feedback CB8,CB9,CB10It is fed back to ACK, so that transmitting terminal can determine CB according to the HARQ feedback code book that later retransmission is fed back8,CB9, CB10Corresponding decoding check results are that decoding is correct.
Referring to Figure 12, for another data transmission method flow chart provided by the present application.This method can be applied to send It holds in the retransmission processes after the first transmission initial data of receiving end, transmitting terminal can be base station, and receiving end can be terminal, Wherein, transmitting terminal can be configured high-level signaling and be carried out data transmission in a manner of CBG, and the quantity for configuring CBG is G, Therefore initial data includes G the first CBG, wherein each first CBG includes at least one CB, and the G is the integer greater than 0. The described method includes:
S1201, transmitting terminal send to receiving end and retransmit data.Retransmitting data is that transmitting terminal is retransmitted for initial data Data.Execute step S1202.
S1202, receiving end is after the re-transmission data for receiving this transmission of transmitting terminal, in this received re-transmission data Including CB decoded, and based on each CB for including in the corresponding initial data updated storage of obtained decoding check results Corresponding decoding check results, for example, for the corresponding decoding check results of certain CB that step S1202 is obtained, by being somebody's turn to do for storage The corresponding decoding check results of CB are updated to the corresponding decoding check results of certain CB that step S1202 is obtained.Wherein, receiving end can Only to be decoded to undecoded correct CB in re-transmission data, or carried out to each CB for including in data is retransmitted Decoding.
Retransmitting in data includes default flag bit, which is the first mark or the second mark.If this is default Flag bit is the first mark, then after executing the step S1202, executes step S1203；If the default flag bit is the second mark Will is sky, then after executing the step S1203, executes step S1205.Wherein, the first mark can be 1, the second mark Will is 0.Alternatively, the first mark or 0, the second mark is 1, and the embodiment of the present application is not specifically limited herein.
S1203, receiving end send the corresponding HARQ feedback code book of the first mark to transmitting terminal, which is G The corresponding decoding check results of a 2nd CBG.Wherein, receiving end can determine G the 2nd CBG based on data are retransmitted.When When the corresponding decoding check results of at least one CB are mistake in one the 2nd CBG, the corresponding decoding check results of the 2nd CBG For NAK, otherwise the corresponding decoding check results of the 2nd CBG are ACK.Execute step S1204.
The method that receiving end determines G the 2nd CBG can determine N number of 2nd CBG's refering to receiving end described in step S703 Method is not repeated herein and repeats.
S1204, transmitting terminal will retransmit each CB in data when retransmitting the default flag bit in data is the first mark G the 2nd CBG are divided into, and retransmits first received to receiving end and indicates that the NAK in corresponding HARQ feedback code book distinguishes Corresponding 2nd CBG.Transmitting terminal, may be by the HARQ of receiving end transmission when reception first indicates corresponding HARQ feedback code book Feedback code book is properly received, it is also possible to connect some decoding check results mistake in the HARQ feedback code book of receiving end transmission It receives, i.e. ACK is detected into NAK, or NAK is detected into ACK, is such as detected as the HARQ feedback code book that content is " 1010 " " 1110 " etc..The HARQ feedback code book that transmitting terminal is received according to itself, which is sent, retransmits data.Wherein, transmitting terminal will retransmit data The method for being divided into G the 2nd CBG determines that the G methods of the 2nd CBG are identical with receiving end in step S1203.
S1205, receiving end send the retransmission request message for carrying the corresponding HARQ feedback code book of the second mark to transmitting terminal, The corresponding HARQ feedback code book of second mark is the G corresponding decoding check results of the first CBG.As the first CBG Including each CB it is updated translate result code be decoding it is correct when, then the corresponding decoding check results of the first CBG are ACK, otherwise the corresponding decoding check results of the first CBG are NAK.Execute step S1206.
S1206 is retransmitted when default flag bit of the transmitting terminal in re-transmission data is the second mark or is sky to receiving end Corresponding first CBG of NAK in the corresponding HARQ feedback code book of the second mark received.Transmitting terminal is marked in reception second When the corresponding HARQ feedback code book of will, the HARQ feedback code book that receiving end is sent may be properly received, it is also possible to by receiving end In the HARQ feedback code book of transmission some decoding check results garbled-reception, i.e. ACK detect at NAK, or by NAK detection at ACK, such as the HARQ feedback code book that content is " 1010 " is detected as " 1110 ".The HARQ that transmitting terminal is received according to itself is anti- It presents code book and sends re-transmission data.
The embodiment of the present application in order to better understand has data transmission procedure below in conjunction with concrete application scene Body detailed description, as shown in figure 13.
For convenience, in the embodiment of the present applicationP-th CBG, q=0,1 when indicating to retransmit for the q times, 2 ..., wherein q=0 is corresponding just passes, p=1,2 ... NCBG, wherein NCBGFor the quantity for the CBG that transmitting terminal is configured by high-level signaling. Transmitting terminal is configured high-level signaling and is transmitted data in a manner of CBG, and the quantity for configuring CBG is 4, that is, NCBGIt is equal to 4。
14 CB are divided into 4 CBG according to preset rules described in step S801 by S1301, transmitting terminal(0), and By 4 CBG(0)First transmission is carried out to receiving end.As shown in Figure 10,4 CBG(0)Respectively
S1302, receiving end pass 4 CBG of transmission at the beginning of receiving transmitting terminal(0)Later, to 4 CBG(0)In include CB It is decoded, determines CB5,CB6And CB12Decoding error, and store the corresponding decoding check results of 14 CB, i.e. CB5,CB6 And CB12Corresponding decoding check results are decoding error, and the corresponding decoding check results of remaining CB are that decoding is correct.
S1303, receiving end send the first HARQ feedback code book to transmitting terminal, and the first HARQ feedback code book is 4 CBG(0)Point Not corresponding decoding check results.NAK is indicated with " 0 " below, " 1 " indicates to be illustrated for ACK.Therefore, the first HARQ is anti- Presenting code book is " 1010 ".
S1304, transmitting terminal is after the first HARQ feedback code book for receiving receiving end transmission, according to first received HARQ feedback code book carries out first time re-transmission, i.e., the CBG corresponding to NAK into the first HARQ feedback code book that receiving end receives(0).By taking the first HARQ feedback code book that transmitting terminal receives is " 1010 " as an example, transmitting terminal, will when retransmit for the first timeIt is retransmitted to receiving end, and will includeRe-transmission data in default flag bit setting For the first mark.
S1305, receiving end are receiving transmitting terminal re-transmission Afterwards, rightIn Including CB decoded, determine CB5And CB12Decoding error, and it is corresponding more according to the decoding check results that step S1305 is obtained The decoding check results of 14 CB newly stored, therefore the corresponding decoding check results of updated 14 CB are as follows: CB5With CB12Corresponding decoding check results are decoding error, and the corresponding decoding check results of remaining CB are that decoding is correct.
S1306, receiving end in the re-transmission data for judging to receive preset flag bit be first mark when, to transmitting terminal hair The second HARQ feedback code book is sent, the second HARQ feedback code book includes 4 CBG(1)Corresponding decoding check results.Wherein, 4 A CBG(1)It is directed to for receiving endIn include 7 A CB is divided based on preset rules described in step S801.As shown in Figure 10,4 CBG(1)Respectively2nd HARQ Feeding back code book is " 0101 ".
S1307, transmitting terminal, will after receiving the second HARQ feedback code book In include 7 CB be divided into 4 CBG based on preset rules described in step S801(1), I.e.
S1308, transmitting terminal carry out second according to the second HARQ feedback code book received and retransmit, i.e. re-transmission receives CBG corresponding to NAK in second HARQ feedback code book(1).The the second HARQ feedback code book received with transmitting terminal is that " 0101 " is Example, transmitting terminal, will when carrying out second of re-transmissionTo receiving end into Row retransmits, and will includeRe-transmission data in default flag bit set It is set to the second mark.
S1309, receiving end are receiving transmitting terminal re-transmission Afterwards, rightIn include CB decoded, determine CB5Decoding error, And the corresponding corresponding decoding check results of 14 CB updated storage of decoding check results obtained according to step S1309, The corresponding decoding check results of updated 14 CB are as follows: CB5Corresponding decoding check results are decoding error, remaining CB Corresponding decoding check results are that decoding is correct.
S1310, receiving end in the re-transmission data for judging to receive preset flag bit be second indicate when, to transmitting terminal Third HARQ feedback code book is sent, third HARQ feedback code book includes 4 CBG(0)Corresponding decoding verification knot Fruit.Wherein, it according to the corresponding decoding check results of updated 14 CB of step S1309, determinesIn Each CB is decoded correctly, thenCorresponding decoding check results are ACK,In CB5Decoding error, thenCorresponding decoding check results are NAK.Therefore, Third HARQ feedback code book is " 1011 ".
S1311, transmitting terminal receive third HARQ feedback code book, and according to the third HARQ feedback code book received Third time re-transmission is carried out, by taking the third HARQ feedback code book that transmitting terminal receives is " 1011 " as an example, transmitting terminal It, will when carrying out second of re-transmissionIt is retransmitted to receiving end, and is includingRe-transmission data in default flag bit be set as the first mark.
S1312, receiving end are receiving transmitting terminal re-transmissionAfterwards, rightIn include CB decoded, determine that all decoding is correct, and will be according to step The corresponding corresponding decoding check results of 14 CB updated storage of the decoding check results that S1312 is obtained, therefore after update The corresponding decoding check results of 14 CB are as follows: the corresponding decoding check results of 14 CB are that decoding is correct.
S1313, receiving end in the re-transmission data for judging to receive preset flag bit be first mark when, to transmitting terminal give birth to At the 4th HARQ feedback code book, the 4th HARQ feedback code book includes 4 CBG(3)Corresponding decoding check results.Its In, 4 CBG(3)It is directed to for receiving endIn include 4 CB be based on step S801 institute What the preset rules stated were divided, respectively 4th HARQ feedback code book is " 1111 ".
S1314, transmitting terminal receives the 4th HARQ feedback code book, and the 4th HARQ feedback code book received is " 1111 ", Terminate data transmission.
Some decoding check results in the HARQ feedback code book that transmitting terminal may send receiving end are the inspection of NAK mistake ACK is surveyed into, transmitting terminal is caused not transmitted the decoding check results when retransmitting for the corresponding CBG of NAK.Such as, in step In S1304, if the first HARQ feedback code book " 1010 " is detected as " 1110 " by transmitting terminal, transmitting terminal can be incited somebody to actionIt is retransmitted to receiving end, whereinIn presence The CB of decoding error is not transmitted when retransmitting but, receiving end is caused to be unable to properly receive the CB of the decoding error.For this A problem, the HARQ feedback code that transmitting terminal can be sent during later retransmission by receiving end in the embodiment of the present application The decoding check results of mistake are detected before this correction, even transmitting terminal is due to the first HARQ feedback code book " 1010 " " 1110 " are detected as, to only willIt is retransmitted to receiving end, without inciting somebody to actionIt is retransmitted.It is the second mark that receiving end can preset flag bit in retransmitting data When, it willCorresponding decoding check results re-start instead in the second HARQ feedback code book Feedback, so that transmitting terminal can be determined according to the second HARQ feedback code bookIt is middle to there is decoding mistake The CB of mistake, and then can be incited somebody to action when retransmitting next timeIt is retransmitted to receiving end, so that Receiving end can receive decoding again
Based on inventive concept same as embodiment of the method described in Fig. 7 to Figure 13, present invention also provides a kind of terminals Equipment, as shown in figure 14, comprising: receiving unit 1401, decoding unit 1402, transmission unit 1403.Wherein, receiving unit 1401 For executing the reception data procedures of step S702 or step S1202, decoding unit 1402 is for executing step S702 or step The decoding process of S1202, transmission unit 1403 is for executing step S703 or step S1203 or step S1205.The terminal It can also include updating unit 1404 in equipment, for executing the renewal process in step S1202, in place of repeating, herein no longer It repeats.
Based on inventive concept same as embodiment of the method described in Fig. 7 to Figure 13, present invention also provides a kind of networks Equipment, as shown in figure 15, comprising: transmission unit 1501, receiving unit 1502, division unit 1503.Wherein, transmission unit 1501 For executing the retransmission processes of step S701 or step S705 or step S1201 or step 1204 or the weight of step S1206 It is transmitted through journey, receiving unit 1502 is used to execute the receive process or the corresponding hair of step S1202 of the corresponding transmitting terminal of step S703 The receive process of sending end, division unit 1503 are used to execute the partition process of step S704 or step S1204, repeat place, this Place repeats no more.
It is schematical, only a kind of logical function partition to the division of module in the embodiment of the present application, it is practical to realize When there may be another division manner, in addition, each functional module in each embodiment of the application can integrate at one It manages in device, is also possible to physically exist alone, can also be integrated in two or more modules in a module.It is above-mentioned integrated Module both can take the form of hardware realization, can also be realized in the form of software function module.
Wherein, when integrated module both can take the form of hardware realization, as shown in figure 16, the embodiment of the present application is also mentioned For a kind of device, which can be applied to terminal device, also can be applied to the network equipment, and the apparatus may include processors 1602.The hardware of the corresponding entity of above-mentioned module can be processor 1602.Processor 1602 can be a central processing mould Block (English: central processing unit, abbreviation CPU), or be digital processing module etc..The device can be with Including transceiver 1601, processor 1602 receives data by transceiver 1601.The device further include: memory 1603 is used for The program that storage processor 1602 executes.Memory 1603 can be nonvolatile memory, such as hard disk (English: hard Disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be easy The property lost memory (English: volatile memory), such as random access memory (English: random-access Memory, abbreviation: RAM).Memory 1603 can be used for carry or store have instruction or data structure form it is desired Program code and can by any other medium of computer access, but not limited to this.
Processor 1602 is used to execute the program code of the storage of memory 1603, is specifically used for executing shown in Fig. 7 or Figure 13 Method described in embodiment.It may refer to method described in Fig. 7 or embodiment illustrated in fig. 13, details are not described herein by the application.
It is not limited in the embodiment of the present application specific between above-mentioned transceiver 1601, processor 1602 and memory 1603 Connect medium.The embodiment of the present application is total to pass through between memory 1603, processor 1602 and transceiver 1601 in Figure 16 Line 1604 connects, and bus indicates that the connection type between other components is only to be schematically illustrated in Figure 16 with thick line, Do not regard it as and is limited.The bus can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, in Figure 16 only It is indicated with a thick line, it is not intended that an only bus or a type of bus.
The embodiment of the invention also provides a kind of computer program products, hold needed for executing above-mentioned processor for being stored as Capable computer software instructions, it includes the programs for execution needed for executing above-mentioned processor.
The embodiment of the present application provides a kind of computer program product comprising instruction, when run on a computer, So that computer executes method described in above-mentioned Fig. 7 to Figure 13.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The application be referring to according to the present processes, equipment (system) and computer program product flow chart and/or Block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/or The combination of process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions to arrive General purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one Machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies Within, then the application is also intended to include these modifications and variations.

Claims (17)

1. a kind of data transmission method, which is characterized in that the described method includes:
Receiving end receives the first re-transmission data of this transmission of transmitting terminal, and the first re-transmission data include one on the transmitting terminal The corresponding first encoding block group of decoding check results for being NAK in secondary received N number of decoding check results, it is described N number of to translate Code check result is the re-transmission data feedback that the receiving end is sent for the transmitting terminal last time, and each described first compiles Code block group includes at least one encoding block, and the N is the integer greater than 0；
The receiving end to this receive first re-transmission data in include encoding block decode；
The receiving end sends the corresponding decoding check results of N number of second encoding block group to the transmitting terminal, and described N number of the Two encoding block groups be the receiving end based on this receive it is described first re-transmission data in include encoding block determine, and The encoding block for including in any two the second encoding block group does not overlap, when at least one encoding block in a second encoding block group When corresponding decoding check results are mistake, which is NAK, otherwise second volume The corresponding decoding check results of code block group are ACK；
The receiving end receives the transmitting terminal retransmits second and retransmits data, and the second re-transmission data include the transmitting terminal The corresponding second encoding block group of decoding check results for being NAK in this received N number of decoding check results.
2. the method as described in claim 1, which is characterized in that h the second encoding block groups in N number of second encoding block group Respectively include a encoding block, in N number of second encoding block group in addition to the h the second encoding block group other second Encoding block group respectively includes b encoding block；
Wherein, the h meets following formula:
H=mod (P, N)；
The P be this receive it is described first re-transmission data in include all encoding blocks quantity；
The a meets following formula:
The b meets following formula:
3. method according to claim 1 or 2, which is characterized in that described first retransmits the default mark of carrying in data, described Default mark is used to indicate the receiving end and feeds back the corresponding decoding check results of N number of second encoding block group.
4. a kind of data transmission method, which is characterized in that the described method includes:
Transmitting terminal to receiving end send first retransmit data, it is described first re-transmission data include the transmitting terminal last time it is received It is the corresponding first encoding block group of decoding check results of NAK in N number of decoding check results, N number of decoding verification knot Fruit is the re-transmission data feedback that the receiving end is sent for the transmitting terminal last time, each first encoding block group packet At least one encoding block is included, the N is the integer greater than 0；
The transmitting terminal receives the corresponding decoding check results of N number of second encoding block group that the receiving end is sent, the N A second encoding block group is that the receiving end is translated based on the encoding block for including in the first re-transmission data received to this The encoding block for including in code and this described first re-transmission data received determines, and the second encoding block of any two The encoding block for including in group does not overlap, when the corresponding decoding check results of at least one encoding block in a second encoding block group When for mistake, which is NAK, otherwise the corresponding decoding school of the second encoding block group Testing result is ACK；
The first re-transmission data are divided into N number of second encoding block group by the transmitting terminal；
The transmitting terminal to the receiving end retransmit second retransmit data, it is described second re-transmission data include the transmitting terminal this The corresponding second encoding block group of decoding check results for being NAK in received N number of decoding check results.
5. method as claimed in claim 4, which is characterized in that h the second encoding block groups in N number of second encoding block group Respectively include a encoding block, in N number of second encoding block group in addition to the h the second encoding block group other second Encoding block group respectively includes b encoding block；
Wherein, the h meets following formula:
H=mod (P, N)；
The P is the quantity for all encoding blocks for including in the first re-transmission data；
The a meets following formula:
The b meets following formula:
6. method as described in claim 4 or 5, which is characterized in that described first, which retransmits data, carries default mark, described pre- Bidding will is used to indicate the receiving end and feeds back the corresponding decoding check results of N number of second encoding block group.
7. a kind of data transmission method, which is characterized in that the described method includes:
The first re-transmission data that receiving end reception transmitting terminal is sent, the first re-transmission data are directed to for the transmitting terminal just to be originated The data that the initial data of the receiving end is retransmitted are given, the initial data includes G encoding block group, each encoding block Group includes at least one encoding block, and the G is the integer greater than 0；
The receiving end decodes the encoding block for including in the first re-transmission data, and retransmits data according to described first Including the corresponding decoding check results encoding block that includes to the initial data of storage of encoding block it is corresponding Decoding check results carry out corresponding update；
When described first retransmits and carry default mark in data, Xiang Suoshu transmitting terminal sends the G coding for the receiving end The corresponding decoding check results of block group, when the corresponding decoding check results of at least one encoding block are in an encoding block group When mistake, the corresponding decoding check results of the encoding block group are NAK, and otherwise the corresponding decoding check results of the encoding block group are ACK；The default mark is used to indicate the receiving end and translates to the transmitting terminal feedback G encoding block group is corresponding Code check result；
The receiving end receives the transmitting terminal is sent second and retransmits data, and described second retransmits data as transmission termination Encoding block group corresponding to decoding check results in the G decoding check results received for NAK.
8. a kind of data transmission method, which is characterized in that the described method includes:
Transmitting terminal sends first to receiving end and retransmits data, and described first retransmits the default mark of carrying in data, the pre- bidding Will is used to indicate the receiving end and feeds back the corresponding decoding check results of G encoding block group to the transmitting terminal；Described One re-transmission data are directed to for the transmitting terminal is initially sent to the data that the initial data of the receiving end is retransmitted, the original Beginning data include G encoding block group, and each encoding block group includes at least one encoding block, and the G is the integer greater than 0；
The transmitting terminal receives the corresponding decoding check results of the G encoding block group that the receiving end is sent, the G The corresponding check results that decode of a encoding block group are the receiving end to the encoding block for including in the first re-transmission data Decoded, and according to it is described first re-transmission data include the corresponding decoding check results of encoding block to described in storage The corresponding decoding check results of the encoding block that initial data includes obtain after carrying out corresponding update；When an encoding block group In the corresponding decoding check results of at least one encoding block be mistake when, the corresponding decoding check results of the encoding block group be NAK, Otherwise the corresponding decoding check results of the encoding block group are ACK；
The transmitting terminal sends second to the receiving end and retransmits data, and the second re-transmission data are that the transmitting terminal receives Decoding check results in for NAK decoding check results corresponding to encoding block group.
9. a kind of terminal device characterized by comprising
Transceiver, for receiving the first re-transmission data of this transmission of transmitting terminal, the first re-transmission data include the transmission The corresponding first encoding block group of decoding check results for being NAK in the last received N number of decoding check results in end, it is described N number of decoding check results are the re-transmission data feedback that the receiving end is sent for the transmitting terminal last time, each described First encoding block group includes at least one encoding block, and the N is the integer greater than 0；
Processor, the encoding block for including in this is received to the transceiver the first re-transmission data decode；
The transceiver is also used to send the corresponding decoding check results of N number of second encoding block group, institute to the transmitting terminal State N number of second encoding block group be the processor based on this receive it is described first re-transmission data in include encoding block it is true Fixed, and the encoding block for including in any two the second encoding block group does not overlap, when at least one in a second encoding block group When the corresponding decoding check results of a encoding block are mistake, which is NAK, otherwise The corresponding decoding check results of second encoding block group are ACK；
The transceiver is also used to receive second from the transmitting terminal and retransmits data, and the second re-transmission data include institute State corresponding second encoding block of decoding check results for being NAK in this received N number of decoding check results of transmitting terminal Group.
10. terminal device as claimed in claim 9, which is characterized in that h second in N number of second encoding block group is compiled Code block group respectively includes a encoding block, its in addition to the h the second encoding block groups in N number of second encoding block group He respectively includes b encoding block at the second encoding block group；
Wherein, the h meets following formula:
H=mod (P, N)；
The P be this receive it is described first re-transmission data in include all encoding blocks quantity；
The a meets following formula:
The b meets following formula:
11. the terminal device as described in claim 9 or 10, which is characterized in that described first retransmits the pre- bidding of carrying in data Will, the default mark are used to indicate the processor and feed back the corresponding decoding verification knot of N number of second encoding block group Fruit.
12. a kind of network equipment, which is characterized in that the network equipment includes:
Transceiver retransmits data for sending first to receiving end, and the first re-transmission data include that the transmitting terminal is last The corresponding first encoding block group of decoding check results for being NAK in received N number of decoding check results, N number of decoding Check results are the re-transmission data feedback that the receiving end is sent for the transmitting terminal last time, each first coding Block group includes at least one encoding block, and the N is the integer greater than 0；Receive N number of second encoding block group from the receiving end Corresponding decoding check results, N number of second encoding block group be the receiving end based on to this receive first Retransmit the encoding block for including in the first re-transmission data that the encoding block for including in data is decoded and this is received Determining, the encoding block for including in any two the second encoding block group does not overlap, when at least one in a second encoding block group When the corresponding decoding check results of a encoding block are mistake, which is NAK, otherwise The corresponding decoding check results of second encoding block group are ACK；
Processor, for the first re-transmission data to be divided into N number of second encoding block group；
The transceiver is also used to retransmit second to the receiving end and retransmits data, and the second re-transmission data include the hair The corresponding second encoding block group of decoding check results for being NAK in this received N number of decoding check results of sending end.
13. the network equipment as claimed in claim 12, which is characterized in that h second in N number of second encoding block group is compiled Code block group respectively includes a encoding block, its in addition to the h the second encoding block groups in N number of second encoding block group He respectively includes b encoding block at the second encoding block group；
Wherein, the h meets following formula:
H=mod (P, N)；
The P is the quantity for the first time retransmitting all encoding blocks for including in data；
The a meets following formula:
The b meets following formula:
14. the network equipment as described in claim 12 or 13, which is characterized in that described first, which retransmits data, carries pre- bidding Will, the default mark are used to indicate the receiving end and feed back the corresponding decoding verification knot of N number of second encoding block group Fruit.
15. a kind of terminal device characterized by comprising
Transceiver, for receiving the first re-transmission data from transmitting terminal, the first re-transmission data are that the transmitting terminal is directed to The data that the initial data of the terminal device is retransmitted initially are sent to, the initial data includes G encoding block group, often A encoding block group includes at least one encoding block, and the G is the integer greater than 0；
Processor, for being decoded to the encoding block for including in the received first re-transmission data of the transceiver, and root Include to the initial data of storage according to the corresponding decoding check results of encoding block that the first re-transmission data include The corresponding decoding check results of encoding block carry out corresponding update；
The transceiver is also used to when described first retransmits and carry default mark in data, and Xiang Suoshu transmitting terminal sends the G The corresponding decoding check results of a encoding block group, when the corresponding decoding verification of at least one encoding block in an encoding block group When being as a result wrong, the corresponding decoding check results of the encoding block group are NAK, otherwise the corresponding decoding verification knot of the encoding block group Fruit is ACK；The default mark is used to indicate the processor and respectively corresponds to the transmitting terminal feedback G encoding block group Decoding check results；
The transceiver is also used to receive the transmitting terminal is sent second and retransmits data, and the second re-transmission data are described Encoding block group corresponding to decoding check results in the G decoding check results that transmitting terminal receives for NAK.
16. a kind of network equipment, which is characterized in that including transceiver and processor；
The transceiver is used for sending and receiving data；
The processor sends the first re-transmission data to receiving end for controlling the transceiver, and first data are described Processor includes G volume for the data that the initial data of the receiving end is retransmitted, the initial data is initially sent to Code block group, each encoding block group include at least one encoding block, and the G is the integer greater than 0；It is retransmitted in data described first When carrying default mark, the corresponding decoding check results of the G encoding block group from the receiving end are received, when one When the corresponding decoding check results of at least one encoding block are mistake in a encoding block group, the corresponding decoding verification of the encoding block group It as a result is NAK, otherwise the corresponding decoding check results of the encoding block group are ACK；And the transceiver is controlled to the receiving end It sends second and retransmits data, the second re-transmission data are encoding block group corresponding to NAK in the decoding check results received；
It is corresponding to the network equipment feedback G encoding block group that the default mark is used to indicate the receiving end Decode check results.
17. a kind of computer readable storage medium, which is characterized in that store program, institute in the computer readable storage medium The described in any item methods of claim 1 to 8 can be realized when being read and executed by one or more processors by stating program.
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