CN109039529A

CN109039529A - Data transmission method and data transmission device

Info

Publication number: CN109039529A
Application number: CN201710431047.7A
Authority: CN
Inventors: 武雨春; 冯淑兰; 王雪松
Original assignee: Huawei Technologies Co Ltd
Current assignee: Suzhou Yudeshui Electric Technology Co Ltd
Priority date: 2017-06-09
Filing date: 2017-06-09
Publication date: 2018-12-18
Anticipated expiration: 2037-06-09
Also published as: WO2018223877A1; CN109039529B

Abstract

This application provides a kind of data transmission method and data transmission device, which includes: the corresponding coded data block of the first redundancy versions RV that receiving device receives the data block that sending ending equipment is sent；The receiving device is decoded according to the corresponding coded data section of the first RV；When decoding failure, which sends request message to the sending ending equipment, and the request message is for requesting the corresponding coded data section of the 2nd RV；The receiving device receives the corresponding coded data section of the 2nd RV that the sending ending equipment is sent according to the request message.Data transmission method and data transmission device provided by the present application are conducive to the success rate for improving decoding.

Description

Data transmission method and data transmission device

Technical field

This application involves the communications fields, and more particularly, to the data transmission method and data biography in the communications field Defeated device.

Background technique

In long term evolution (long term evolution, LTE) communication system, sending ending equipment is automatic using mixing Retransmission request (hybrid automatic repeat request, HARQ) mechanism sends data block to receiving device, specifically Ground, the sending ending equipment encode the data block using Turbo code, and coded data block is obtained, to the coded data block into Row segmentation, obtains multiple coded data sections, and multiple coded data section corresponds to the different redundancy versions of the data block (redundancy version, RV), sending ending equipment successively send each RV in multiple RV according to preset RV transmission sequence Corresponding coded data section, if receiving device does not receive the corresponding coded data section of m-th of RV of sending ending equipment transmission, Or the receiving device receives the corresponding coded data section of m-th of RV, but according to the corresponding coded data of m-th of RV Section decoding failure, then sending ending equipment sends the corresponding coded data section of the m+1 RV, and receiving device is according to the m+1 RV decoding, m are the integer greater than 0.

However, data channel using low density parity check code (low density parity check code, LDPC) in the communication system encoded, the only coded data section that receives of receiving device is as continuous as possible, and receiving device is translated The success rate of code is likely to higher.Therefore, if continuing to use the HARQ mechanism transmission data block in LTE communication system, decoding at Power is lower.

Summary of the invention

The application provides a kind of data transmission method and data transmission device, is conducive to the success rate for improving decoding.

In a first aspect, this application provides a kind of data transmission method, which includes:

Receiving device receives the corresponding coded data block of the first redundancy versions RV for the data block that sending ending equipment is sent；

The receiving device is decoded according to the corresponding coded data section of the first RV；

When the decoding failure, which sends request message to the sending ending equipment, which uses In the corresponding coded data section of the 2nd RV of request；

The receiving device receives the corresponding coded number of the 2nd RV that the sending ending equipment is sent according to the request message According to section.

Data transmission method provided by the embodiments of the present application, when receiving device is according to the corresponding volume of the first RV received When code data segment decoding failure, request message actively is sent to sending ending equipment, to request the corresponding coded data section of the 2nd RV, The receiving device after receiving the corresponding coded data section of the 2nd RV that the sending ending equipment is sent according to the request message, It can be decoded according to the corresponding coded data section of all RV having received, be conducive to the decoding success rate for improving receiving device With decoding flexibility.

Optionally, which can carry the instruction information of the 2nd RV.

It should be understood that the data transmission method both can be used for the scene of transmitting uplink data, downlink data can be used for The scene of transmission.Wherein, under the scene of transmitting uplink data, which can be terminal device, which sets Standby can be the network equipment；Under the scene of downlink data transmission, which can be the network equipment, which sets Standby can be terminal device, and the embodiment of the present application is not construed as limiting this.

Optionally, sending ending equipment sends the corresponding coded data section of the first RV of data block to receiving device, can be with Are as follows: the sending ending equipment sends the instruction information and first coding data section of the first RV to the receiving device, the first RV's It is the corresponding coded data section of the first RV that instruction information, which is used to indicate the first coding data section,.

As an alternative embodiment, under the scene of downlink data transmission, which can be controlled by downlink Channel sends the instruction information of the first RV to the terminal device, and by downstream data channel to the terminal device send this One RV corresponds to coded-bit section, and the embodiment of the present application is not construed as limiting this.

Optionally, which sends the corresponding coded data section of the first RV, Ke Yiwei to the receiving device The data block is transmitted to the receiving device for the first time, or the data can be retransmitted to the receiving device for the sending ending equipment Block, the embodiment of the present application are not construed as limiting this.

It should be understood that receiving the corresponding coded data block of the first RV for the data block that sending ending equipment is sent in receiving device Before, which can carry out coding and rate-matched to the data block, obtain coded data block, and by the coded number Circular buffer is written according to block, wherein the coded data block being written in the circular buffer is divided into the corresponding coded number of multiple RV According to section, sending ending equipment is chosen the corresponding coded data section of some RV every time and is transmitted.

Optionally, the instruction information of the different RV of data block can be serial number of the RV in preset RV sequence, the RV Value, number, the mark of the RV of the RV etc. can uniquely indicate that the instruction information of the RV, the embodiment of the present application do not make this It limits.

It should also be understood that the sending ending equipment and the receiving device can make an appointment multiple RV transmission sequence ( Referred to as RV sequence) and multiple RV in each RV serial number (also referred to as number, number, value etc.), such as association can be passed through View agreement or the sending ending equipment indicate the receiving device, the application by notification message before transmitting the data block Embodiment is not construed as limiting this.

For example, the coded data block 1 in circular buffer is divided into the corresponding coded data section of 4 RV, the value of this 4 RV The RV sequence that respectively RV0, RV1, RV2 and RV3, the sending ending equipment and the receiving device are made an appointment are as follows: RV0-RV2- RV3-RV1, then the sending ending equipment when sending the data block according to RV sequence, successively send the corresponding coded data section of RV0, The corresponding coded data section of RV2, the corresponding coded data section of RV3, the corresponding coded data section of RV1.

Optionally, the number of multiple RV for example can be 4,8,16,32 or other values, this Shen in the embodiment of the present application Please embodiment this is not construed as limiting.

Optionally, the sending ending equipment and the receiving device can make an appointment the corresponding volume of each RV of the data block Initial position of the code data segment in circular buffer, such as can be somebody's turn to do by protocol conventions or the sending ending equipment in transmission Before data block, which is indicated by notification message, the embodiment of the present application is not construed as limiting this.

Optionally, the corresponding coded data section of each RV in multiple RV may include some or all of the data block Bit.

Optionally, in multiple RV, the corresponding coded data section of different RV can not be overlapped, or the corresponding volume of difference RV Code data segment can partly overlap or the continuous RV of any two in the corresponding coded data section of previous RV with RV pairs of the latter The coded data section answered is continuous, and the embodiment of the present application is not construed as limiting this.

Optionally, it is assumed that RV number of the data block is 2ⁿA, which can pass through n bit, Huo Zheke Indicated in a manner of according to differential encoding this 2ⁿAny RV in a RV, or can indicate by other means this 2ⁿIn a RV Any RV, the embodiment of the present application is not construed as limiting this.

In one possible implementation, before the receiving device sends request message to the sending ending equipment, The data transmission method further include: the receiving device is according to the RV for the coded data section having received and the RV sequence of pre-configuration Column, determine the 2nd RV.

In alternatively possible implementation, the receiving device is according to the RV of the coded data section having received and pre- The RV sequence of configuration, determines the 2nd RV, comprising: the receiving device is according to the RV of the coded data section having received and this RV sequence determines before receiving the first RV, there is at least one RV not received；The receiving device by this at least RV most preceding in the RV sequence, is determined as the 2nd RV in one RV.

As an alternative embodiment, which can first determine in the RV sequence institute before the first RV There is at least one RV not received, and using RV most preceding in the RV sequence at least one RV as the 2nd RV.

As another alternative embodiment, the receiving device can by the RV sequence first before the first RV The RV not received is as the 2nd RV.

Data transmission method provided by the embodiments of the present application, receiving device will not connect before the first RV in the RV sequence The most previous RV received requests the corresponding coded data section of the 2nd RV as the 2nd RV, and to sending ending equipment, can make The corresponding coded data section of 2nd RV coded data section corresponding with the RV before the first RV is as continuous as possible, to improve The reliability of decoding success rate and the data transmission of receiving device.

In another possible implementation, the receiving device is according to the RV of the coded data section having received and pre- The RV sequence of configuration, determines the 2nd RV, comprising: the receiving device is according to the RV of the coded data section having received and this RV sequence determines that before receiving the first RV, there is no the RV not received；The receiving device will be somebody's turn to do in the RV sequence Next RV of first RV is determined as the 2nd RV.

Data transmission method provided by the embodiments of the present application, receiving device have received in the RV sequence the first RV it Preceding all RV then using the latter RV of the 2nd RV as the 2nd RV, and request the 2nd RV corresponding to sending ending equipment Coded data section can be such that the corresponding coded data section of the 2nd RV coded data section corresponding with the first RV connects as far as possible It is continuous, to improve the decoding success rate of receiving device and the reliability of data transmission.

Second aspect, this application provides a kind of data transmission method, which includes:

Sending ending equipment sends the corresponding coded data section of the first redundancy versions RV of data block to receiving device；

When receiving device coded data section decoding failure corresponding according to the first RV, the sending ending equipment The request message of receiving device transmission is received, the request message is for requesting the corresponding coded data section of the 2nd RV；

The sending ending equipment sends the corresponding coded data of the 2nd RV according to the request message, to the receiving device Section.

Data transmission method provided by the embodiments of the present application, sending ending equipment is corresponding to the first RV of receiving device transmission Coded data section after, receive receiving device transmission for requesting the 2nd RV corresponding coded data section request to disappear When breath, the corresponding coded data section of the 2nd RV is sent to the receiving device according to the request message, is conducive to improve reception The decoding success rate of end equipment, and decoding flexibility.

Optionally, which can carry the instruction information of the 2nd RV.

In one possible implementation, the 2nd RV is the coded data section being had received according to the receiving device RV and pre-configuration RV sequence determine.

In alternatively possible implementation, the 2nd RV is the receiving end in the RV sequence before the first RV The most previous RV that equipment does not receive.

Data transmission method provided by the embodiments of the present application, sending ending equipment disappear according to the request that the receiving device is sent Breath sends the corresponding coded data section of the 2nd RV to the receiving device, the 2nd RV be by the first RV in the RV sequence it The preceding most previous RV not received is as the 2nd RV, so that the corresponding coded number of the 2nd RV that receiving device receives It is as continuous as possible according to section coded data section corresponding with the RV before the first RV, to improve the successfully decoded of receiving device The reliability of rate and data transmission.

In another possible implementation, the 2nd RV is next RV of the first RV in the RV sequence, wherein The receiving device has received in the RV sequence all RV before the first RV.

Data transmission method provided by the embodiments of the present application, sending ending equipment disappear according to the request that the receiving device is sent Breath sends the corresponding coded data section of the 2nd RV to the receiving device, and the 2nd RV is in the RV sequence under the first RV One RV, and the receiving device has received in the RV sequence all RV before the first RV, so that receiving device connects The corresponding coded data section of the 2nd RV coded data section corresponding with the first RV received is as continuous as possible, connects to improve The reliability of decoding success rate and the data transmission of receiving end equipment.

The third aspect, this application provides a kind of data transmission methods, comprising:

The sending ending equipment receives the feedback message of receiving device transmission, which does not receive for feeding back The corresponding coded data section of first RV；

The sending ending equipment retransmits the corresponding coded data section of the first RV to the receiving device.

Data transmission method provided by the embodiments of the present application, receiving device do not receive the first of sending ending equipment transmission When the corresponding coded data section of RV, which retransmits the corresponding coded data section of the first RV to the receiving device, So that the coded data section that receiving device receives is as continuous as possible, to improve the decoding success rate and data of receiving end The reliability of transmission.

Fourth aspect, this application provides a kind of data transmission methods, comprising:

Receiving device does not receive the corresponding coded number of the first redundancy versions RV of the data block of sending ending equipment transmission When according to section, which sends feedback message to the sending ending equipment, the feedback message for feed back do not receive this The corresponding coded data section of one RV；

The receiving device receives the corresponding volume of the first RV that the sending ending equipment is retransmitted according to the feedback message Code data segment.

Data transmission method provided by the embodiments of the present application, receiving device do not receive the first of sending ending equipment transmission When the corresponding coded data section of RV, feedback message is sent to the sending ending equipment, and receive the sending ending equipment according to the feedback The corresponding coded data section of the first RV of message retransmission, the coded data section that receiving device can be made to receive connect as far as possible It is continuous, to improve the decoding success rate of receiving end and the reliability of data transmission.

5th aspect, this application provides a kind of data transmission devices, for executing above-mentioned first aspect or first aspect Any possible implementation in data transmission method.

6th aspect, this application provides a kind of data transmission devices, for executing above-mentioned second aspect or second aspect Any possible implementation in data transmission method.

7th aspect, this application provides a kind of data transmission devices, for executing the above-mentioned third aspect or the third aspect Any possible implementation in data transmission method.

Eighth aspect, this application provides a kind of data transmission devices, for executing above-mentioned fourth aspect or fourth aspect Any possible implementation in data transmission method.

9th aspect, this application provides a kind of data transmission device, which includes: memory, processing Device, transceiver and it is stored in the computer program that can be run on the memory and on the processor, which is characterized in that the processing Device executes the biography of the data in any possible implementation of above-mentioned first aspect or first aspect when executing the computer program Transmission method.

Optionally, which includes processor, memory can also be realized by chip.

Tenth aspect, this application provides a kind of data transmission device, which includes: memory, processing Device, transceiver and it is stored in the computer program that can be run on the memory and on the processor, which is characterized in that the processing Device executes the biography of the data in any possible implementation of above-mentioned second aspect or second aspect when executing the computer program Transmission method.

Optionally, which includes processor, memory can also be realized by chip.

Tenth on the one hand, and this application provides a kind of data transmission device, which includes: memory, place It manages device, transceiver and is stored in the computer program that can be run on the memory and on the processor, which is characterized in that at this Reason device executes the data in any possible implementation of the above-mentioned third aspect or the third aspect when executing the computer program Transmission method.

Optionally, which includes processor, memory can also be realized by chip.

12nd aspect, this application provides a kind of data transmission device, which includes: memory, place It manages device, transceiver and is stored in the computer program that can be run on the memory and on the processor, which is characterized in that at this Reason device executes the data in any possible implementation of above-mentioned fourth aspect or fourth aspect when executing the computer program Transmission method.

Optionally, which includes processor, memory can also be realized by chip.

13rd aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer Program includes the instruction for executing the method in any possible implementation of first aspect or first aspect.

Fourteenth aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer Program includes the instruction for executing the method in any possible implementation of second aspect or second aspect.

15th aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer Program includes the instruction for executing the method in any possible implementation of the third aspect or the third aspect.

16th aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer Program includes the instruction for executing the method in any possible implementation of fourth aspect or fourth aspect.

17th aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers When row, so that computer executes the method in any possible implementation of above-mentioned first aspect or first aspect.

Tenth octahedral, this application provides a kind of computer program products comprising instruction, when it runs on computers When, so that computer executes the method in any possible implementation of above-mentioned second aspect or second aspect.

19th aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers When row, so that computer executes the method in any possible implementation of the above-mentioned third aspect or the third aspect.

20th face, this application provides a kind of computer program products comprising instruction, when it runs on computers When, so that computer executes the method in any possible implementation of above-mentioned fourth aspect or fourth aspect.

Detailed description of the invention

Fig. 1 is the schematic architectural diagram of communication system provided by the embodiments of the present application；

Fig. 2 is the schematic flow chart of data transmission method provided by the embodiments of the present application；

Fig. 3 is the schematic flow chart of another data transmission method provided by the embodiments of the present application；

Fig. 4 is the schematic flow chart of another data transmission method provided by the embodiments of the present application；

Fig. 5 is the schematic flow chart of another data transmission method provided by the embodiments of the present application；

Fig. 6 is the schematic block diagram of data transmission device provided by the embodiments of the present application；

Fig. 7 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Fig. 8 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Fig. 9 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Figure 10 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Figure 11 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Figure 12 is the schematic block diagram of another data transmission device provided by the embodiments of the present application；

Figure 13 is the schematic block diagram of another data transmission device provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

Fig. 1 shows the schematic architectural diagram of communication system 100 provided by the embodiments of the present application.As shown in Figure 1, the communication System 100 may include that at least one sending ending equipment (sending ending equipment 110 is shown in Fig. 1) and at least one receiving end are set Standby (receiving device 120 is shown in Fig. 1), can between at least one sending ending equipment and at least one receiving device To carry out data transmission.

Optionally, communication system 100 provided by the embodiments of the present application both can be used for the scene of transmitting uplink data, can also With the scene for downlink data transmission.

Wherein, under the scene of transmitting uplink data, which can be terminal device, which sets Standby 120 can be the network equipment；Under the scene of downlink data transmission, which can be the network equipment, the reception End equipment can be terminal device, and the embodiment of the present application is not construed as limiting this.

Optionally, the network equipment can provide communication overlay for specific geographic area, and can be located at the covering UE in region is communicated.The network equipment can be base station (the base transceiver in gsm system or cdma system Station, BTS), it is also possible to the base station (nodeB, NB) in WCDMA system, can also be the evolved base in LTE system Stand (evolved node B, eNB or eNodeB) or cloud Radio Access Network (cloud radio access Network, CRAN) in wireless controller.The network equipment can also for core net, relay station, access point, mobile unit, Public land mobile network (the public land of wearable device, the network side equipment in future 5G network or the following evolution Mobile network, PLMN) in the network equipment etc..

Optionally, terminal device can be mobile or fixed.The terminal device can refer to the accession to terminal, user equipment (user equipment, UE), subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, use Family terminal, terminal, wireless telecom equipment, user agent or user apparatus etc..Access terminal can be cellular phone, wireless electricity Words, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless Local loop, WLL) it stands, personal digital assistant (personal digital assistant, PDA), there is wireless communication function Can handheld device, calculate equipment or be connected to radio modem other processing equipments, mobile unit, wearable set Terminal device in standby, the following 5G network or the terminal device in the PLMN of the following evolution etc..

Fig. 1 schematically illustrates a network equipment and a terminal device, and optionally, which may be used also With include multiple network equipments and each network equipment coverage area in may include other quantity terminal device, this Shen Please embodiment do not limit this.Optionally, which can also include network controller, mobile management entity etc. Other network entities, the embodiment of the present application are without being limited thereto.

Fig. 2 shows the schematic flow charts of data transmission method 200 provided by the embodiments of the present application.The transmission side data Method 200 can be applied to communication system 100 as shown in Figure 1.

S210, sending ending equipment send the corresponding coded data section of the first RV of data block to receiving device；Correspondingly, The receiving device receives the corresponding coded data section of the first RV of sending ending equipment transmission.

It should be understood that the data transmission method 200 both can be used for the scene of transmitting uplink data, lower line number can be used for According to the scene of transmission.Wherein, under the scene of transmitting uplink data, which can set for the terminal device receiving end Standby can be the network equipment；Under the scene of downlink data transmission, which can be the network equipment, which sets Standby can be terminal device, and the embodiment of the present application is not construed as limiting this.

Optionally, in S210, sending ending equipment sends the corresponding coded number of the first RV of data block to receiving device It, can be with according to section are as follows: the sending ending equipment sends the instruction information and first coding data section of the first RV to the receiving device, should It is the corresponding coded data section of the first RV that the instruction information of first RV, which is used to indicate the first coding data section,.

As an alternative embodiment, under the scene of downlink data transmission, which can be controlled by downlink Channel sends the instruction information of the first RV to the terminal device, and by downstream data channel to the terminal device send this One coded-bit section, the embodiment of the present application are not construed as limiting this.

It should be understood that the sending ending equipment can carry out coding and rate-matched to the data block before S210, compiled Code data block, and circular buffer is written into the coded data block, wherein the coded data block being written in the circular buffer is divided For the corresponding coded data section of multiple RV, sending ending equipment is chosen the corresponding coded data section of some RV every time and is transmitted.

Optionally, the instruction information of the different RV of data block for example can for serial number of the RV in preset RV sequence, The value of the RV, mark of the number of the RV, the RV etc. can uniquely indicate the instruction information of the RV, and the embodiment of the present application is to this It is not construed as limiting.

Optionally, it is assumed that RV number of the data block is 2ⁿA, which can pass through n bit, Huo Zheke Indicated in a manner of according to differential encoding this 2ⁿAny RV in a RV, or can indicate by other means this 2ⁿIn a RV Any RV, n is integer greater than 0, and the embodiment of the present application is not construed as limiting this.

S220, the receiving device are decoded according to the corresponding coded data section of the first RV.

S230, when the decoding failure, which sends request message, the request message to the sending ending equipment For requesting the corresponding coded data section of the 2nd RV；Correspondingly, the sending ending equipment receive the receiving device transmission this ask Seek message.

Optionally, which can carry the instruction information of the 2nd RV.

Optionally, before S230, which can be according to the RV of the coded data section having received and prewired The RV sequence set, determines the 2nd RV.

Data transmission method provided by the embodiments of the present application, when receiving device is according to the corresponding volume of the first RV received When code data segment decoding failure, request message actively is sent to sending ending equipment, to request the corresponding coded data section of the 2nd RV, The receiving device exists

After receiving the corresponding coded data section of the 2nd RV that the sending ending equipment is sent according to the request message, Neng Gougen According to the corresponding coded data section decoding of all RV having received, be conducive to the decoding success rate and decoding that improve receiving device Flexibility.

In addition, receiving device is according to the corresponding coded data section of the 2nd RV volume corresponding with the other RV having received Code data segment carries out steadily increase redundancy or merges decoding, can be improved decoding success rate, thus the reliability of improve data transfer.

As an alternative embodiment, which can be according to the RV for the coded data section that this has received and this RV sequence determines before receiving the first RV, there is at least one RV not received；The receiving device by this at least RV most preceding in the RV sequence, is determined as the 2nd RV in one RV.

For example, it is assumed that the RV sequence of data block is RV0-RV2-RV3-RV1, receiving device receives sending ending equipment hair The corresponding coded data section of the RV3 sent, and being decoded according to the corresponding coded data section of the RV3, when the receiving device is according to connecing When the corresponding coded data section decoding failure of the RV3 received, which has received RV0 and RV3, that is, exists and do not connect The RV2 received, then the receiving device sends request message to the sending ending equipment, and the request message is for requesting this RV2 pairs The coded data section answered.That is, receiving device after receiving RV2, has received RV0, RV2, RV3.

In another example, it is assumed that the RV sequence of the data block is RV1-RV2-RV3-RV4-RV5-RV6-RV7, and receiving device connects The corresponding coded data section of RV5 of sending ending equipment transmission is received, and is decoded according to the corresponding coded data section of the RV5, when this When corresponding according to the RV5 received the coded data section decoding failure of receiving device, which is had received That is, there is the RV2 and RV3 not received in RV1, RV4 and RV5, and RV2 is located at before the RV3 in RV sequence, then the receiving end Equipment sends request message to the sending ending equipment, and the request message is for requesting the corresponding coded data section of the RV2.Namely It says, receiving device has received RV1, RV2, RV4 and RV5 after receiving RV2.

It should be understood that in LTE communication system, when receiving device is according to the corresponding coded data of m-th of RV received When section decoding failure, sending ending equipment sends the corresponding coded data section of the m+1 RV, and receiving device is according to the m+1 RV decoding, i.e. receiving device lack the corresponding coded data section of m-th of RV in decoding, and m is the integer greater than 0.

Data transmission method provided by the embodiments of the present application connects in communication system of the data channel using LDPC coding Receiving end equipment is using the most previous RV not received before the first RV in the RV sequence as the 2nd RV, and to sending ending equipment The corresponding coded data section of the 2nd RV is requested, the RV before the corresponding coded data section of the 2nd RV and the first RV can be made Corresponding coded data section is as continuous as possible, to improve the decoding success rate of receiving device and the reliability of data transmission.

As another alternative embodiment, the receiving device can according to the RV of the coded data section that this has received and The RV sequence determines that before receiving the first RV, there is no the RV not received；The receiving device will be in the RV sequence Next RV of first RV is determined as the 2nd RV.

For example, it is assumed that the RV sequence of the data block is RV0-RV2-RV3-RV1, receiving device receives sending ending equipment The corresponding coded data section of the RV3 of transmission, and being decoded according to the corresponding coded data section of the RV3, when the receiving device according to When the corresponding coded data section decoding failure of the RV3 received, the receiving device have received the RV3 before it is all RV has received RV0, RV2 and RV3, then the receiving device sends request message, the request message to the sending ending equipment For requesting next RV of the RV3, the i.e. corresponding coded data section of RV1.That is, receiving device is receiving RV1 Afterwards, RV0, RV2, RV3, RV1 are had received.

S240, the sending ending equipment send the corresponding coding of the 2nd RV according to the request message, to the receiving device Data segment；Correspondingly, which receives the corresponding coded data section of the 2nd RV of sending ending equipment transmission.

Optionally, after S240, if the receiving device receives the sending ending equipment and is sent according to the request message The corresponding coded data section of the 2nd RV, then the receiving device is decoded according to the corresponding coded data section of the 2nd RV.

Optionally, which decodes according to the corresponding coded data section of the 2nd RV, can be with are as follows: the receiving end is set It is standby to the corresponding coded data section of the 2nd RV and the corresponding coded data section progress steadily increase redundancy of the other RV having received Or merging decoding, the embodiment of the present application is not construed as limiting this.

Optionally, which can be corresponding for RV each at least one RV Coded data section, wherein at least one RV can be some or all RV having received, the embodiment of the present application to this not It limits.

Optionally, if the receiving device is successfully decoded according to the corresponding coded data section of the 2nd RV, the transmitting terminal Equipment sends the second feedback message, which is successfully received the data block for feeding back；Correspondingly, the transmitting terminal Equipment receives second feedback message of receiving device transmission, and according to second feedback message, to the receiving device Send other data blocks.

Fig. 3 shows the schematic flow chart of data transmission method 300 provided by the embodiments of the present application, the transmission side data Method 300 can be applied to communication system 100 as shown in Figure 1.

S310, sending ending equipment send the corresponding coded data section of the first RV of data block to receiving device.

It should be understood that the data transmission method 300 both can be used for the scene of transmitting uplink data, lower line number can be used for According to the scene of transmission.Wherein, under the scene of transmitting uplink data, which can set for the terminal device receiving end Standby can be the network equipment；Under the scene of downlink data transmission, which can be the network equipment, which sets Standby can be terminal device, and the embodiment of the present application is not construed as limiting this.

It should also be understood that the S310 in Fig. 3 is similar with the S210 in Fig. 2, therefore, S310 can be real with reference to S210 embodiment It applies, to avoid repeating, details are not described herein again.

S320, the receiving device do not receive the corresponding coded data section of the first RV of sending ending equipment transmission When, which sends feedback message to the sending ending equipment, which does not receive the first RV for feeding back Corresponding coded data section；Correspondingly, which receives the feedback message of receiving device transmission.

S330, the sending ending equipment retransmit the corresponding coded data section of the first RV to the receiving device；Accordingly Ground, the receiving device receive the corresponding coded data of the first RV that the sending ending equipment is retransmitted according to the feedback message Section.

For example, it is assumed that the RV sequence of the data block is RV0-RV2-RV3-RV1, which has received RV0 pairs The corresponding coded data section of the coded data section and RV2 answered, if receiving device does not receive RV3 pairs of sending ending equipment transmission The coded data section answered, then send feedback message to sending ending equipment, which does not receive the RV3 for feedback and correspond to Coded data section, sending ending equipment retransmits the corresponding coded data of the RV3 according to the feedback message, to the receiving device Section.That is, receiving device receives RV0 pairs after receiving the RV3 that sending ending equipment is sent according to the feedback message Coded data section, the corresponding coded data section of RV2 and the corresponding coded data section of RV3 answered.

Optionally, under the scene of downlink data transmission, which sends the first RV to the receiving device Corresponding coded data section, can be with are as follows: the sending ending equipment sends the instruction information of the first RV by down control channel, and leads to It crosses downstream data channel and sends first coding data section, the instruction information of the first RV is used to indicate the first coding data section and is The corresponding coded data section of first RV.

Optionally, under the scene of downlink data transmission, receiving end do not receive really sending ending equipment transmission this The corresponding coded data section of one RV, can be with are as follows: and the receiving end does not receive the instruction information of the first RV in down control channel, The embodiment of the present application is not construed as limiting this.

Optionally, after S330, if the receiving device receives the sending ending equipment and is sent according to the request message The corresponding coded data section of the first RV, then the receiving device is decoded according to the corresponding coded data section of the first RV.

Optionally, which decodes according to the corresponding coded data section of the first RV, can be with are as follows: the receiving end is set It is standby to the corresponding coded data section of the first RV and the corresponding coded data section progress steadily increase redundancy of the other RV having received Or merging decoding, the embodiment of the present application is not construed as limiting this.

Optionally, if the receiving device is successfully decoded according to the corresponding coded data section of the first RV, the transmitting terminal Equipment sends feedback message, which is successfully received the data block for feeding back；Correspondingly, which receives The feedback message that the receiving device is sent, and according to the feedback message, other data blocks are sent to the receiving device.

It should be understood that m-th of RV that receiving device does not receive sending ending equipment transmission is corresponding in LTE communication system Coded data section when, sending ending equipment sends the corresponding coded data section of the m+1 RV, and receiving device is according to the m+1 A RV decoding, i.e. receiving device lack the corresponding coded data section of m-th of RV in decoding, and m is the integer greater than 0.

And data transmission method provided by the embodiments of the present application, in communication system of the data channel using LDPC coding, When sending ending equipment receives receiving device feedback and do not receive the corresponding coded data section of the first RV, to the sending ending equipment The corresponding coded data section of the first RV is retransmitted, the coded data section that receiving device can be made to receive is as continuous as possible, from And improve the decoding success rate of receiving device and the reliability of transmission data.

Fig. 4 shows the schematic flow chart of data transmission method 400 provided by the embodiments of the present application, the transmission side data Method 400 can be applied to communication system 100 as shown in Figure 1, but the embodiment of the present application is not construed as limiting this.

It is assumed that sending ending equipment by data block to be sent through coding and rate-matched after, obtain coded data block, and The coded data block is stored in circular buffer, wherein it is corresponding that the coded data block being stored in the circular buffer is divided into 4 RV Coded data section, 4 RV are respectively RV1, RV2, RV3 and RV4, and the RV sequence that sending ending equipment and receiving device are pre-configured It is classified as RV1-RV2-RV3-RV4.

S401, sending ending equipment send the corresponding coded data section of RV1 of data block to receiving device；Correspondingly, should Receiving device receives the corresponding coded data section of the RV1 of net equipment transmission.

That is, receiving device receives the corresponding coded data section of the RV1.

S402, the receiving device are decoded according to the corresponding coded data section of the RV1.

S403, when receiving device coded data section decoding failure corresponding according to the RV1, the receiving device root According to the corresponding coded data section of the received RV1 and the RV sequence, the instruction information for carrying RV2 is sent to the sending ending equipment The first request message, first request message is for requesting sending ending equipment to send the corresponding coded data section of RV2；Accordingly Ground, the sending ending equipment receive first request message of receiving device transmission.

S404, the sending ending equipment send the corresponding coding of the RV2 according to first request message, to the receiving device Data segment.

It should be understood that in Fig. 4 S401 is similar with the S210 in Fig. 2, the S402 in Fig. 4 is similar with the S220 in Fig. 2, Fig. 4 In S403 is similar with the S230 in Fig. 2, the S404 in Fig. 4 is similar with the S240 in Fig. 2, therefore, S401~S404 can join The embodiment for examining S210~S240 is implemented, and to avoid repeating, details are not described herein again.

S405, when which does not receive the corresponding coded data section of the RV2, the receiving device is to the transmission End equipment feedback is discontinuous to send (discontinuous transmission, DTX), which sets for feeding back the receiving end It is standby not receive the corresponding coded data section of the RV2；Correspondingly, which receives being somebody's turn to do for receiving device transmission DTX。

S406, the sending ending equipment send next RV of the RV2, i.e. RV3, corresponding coded number to the receiving device According to section；Correspondingly, which receives the corresponding coded data section of the RV3 of sending ending equipment transmission.

That is, receiving device receives the corresponding coded data section of the RV3.

S407, the receiving device are decoded according to the corresponding coded data section of the RV3.

S408, when receiving device coded data section decoding failure corresponding according to the RV3, the receiving device root According to the corresponding coded data section of the received RV1 and the corresponding coded data section of RV3 and the RV sequence, determine in the RV3 It does not receive the corresponding coded data section of RV2 before, and sends the second of the instruction information for carrying the RV2 to the sending ending equipment and ask Message is sought, second request message is for requesting the sending ending equipment to retransmit the corresponding coded data section of the RV2；Correspondingly, should Sending ending equipment receives second request message of receiving device transmission.

S409, the sending ending equipment retransmit the corresponding coding of the RV2 according to second request message, to the receiving device Data segment；Correspondingly, which receives the corresponding coded data section of the RV2 of sending ending equipment transmission.

That is, receiving device have received the corresponding coded data section of RV1, the corresponding coded data section of RV2 and The corresponding coded data section of RV3.

It should be understood that in Fig. 4 S406 is similar with the S210 in Fig. 2, the S407 in Fig. 4 is similar with the S220 in Fig. 2, Fig. 4 In S408 is similar with the S230 in Fig. 2, the S409 in Fig. 4 is similar with the S240 in Fig. 2, therefore, S406~S409 can join The embodiment for examining S210~S240 is implemented, and to avoid repeating, details are not described herein again.

S410, the receiving device are successfully decoded according to the corresponding coded data section of the RV2.

Optionally, the receiving device is successfully decoded according to the corresponding coded data section of the RV2, can be with are as follows: the receiving end Equipment is successfully decoded according to the corresponding coded data section of RV2 coded data section corresponding with other RV are had received.Wherein, Other RV received can be RV1 and/or RV2.

S411, the receiving device, should to the sending ending equipment feedback acknowledgment character (acknowledgement, ACK) ACK is successfully received the data block for feeding back；Correspondingly, which receives the ACK of receiving device transmission.

Optionally, after S411, which can send other numbers to the receiving device according to the ACK According to block.

Fig. 5 shows the schematic flow chart of another data transmission method 500 provided by the embodiments of the present application, which passes Transmission method 500 can be applied to communication system 100 as shown in Figure 1.

It is assumed that data block to be sent is passed through coding and rate-matched by sending ending equipment, coded data block is obtained, and will Circular buffer is written in the coded data block, wherein it is corresponding that the coded data block being written in the circular buffer is divided into 4 RV Coded data section, 4 RV are respectively RV1, RV2, RV3 and RV4, and the RV sequence that sending ending equipment and receiving device are pre-configured For RV1-RV2-RV3-RV4.

It should be understood that being only described by taking 4 RV as an example in the embodiment of the present application, which follows coded data block deposit After ring caching, which can be classified into the corresponding coded data section of RV of other quantity, the embodiment of the present application pair This is not construed as limiting.

It should also be understood that being only described so that RV sequence is RV1-RV2-RV3-RV4 as an example in the embodiment of the present application, the data Multiple RV of block can also be sent according to other RV sequences, and the embodiment of the present application is not construed as limiting this.

Optionally, the corresponding coded data section of each RV in 4 RV may include some or all of data block ratio It is special.

Optionally, in 4 RV, the corresponding coded data section of different RV can not be overlapped, or the corresponding coding of difference RV Data segment can partly overlap or the continuous RV of any two in the corresponding coded data section of previous RV it is corresponding with the latter RV Coded data section it is continuous, the embodiment of the present application is not construed as limiting this.

S501, sending ending equipment send the corresponding coded data section of RV1 of data block to receiving device；Correspondingly, should Receiving device receives the corresponding coded data section of the RV1 of net equipment transmission.

S502, the receiving device are decoded according to the corresponding coded data section of the RV1.

S503, when receiving device coded data section decoding failure corresponding according to the RV1, the receiving device to The sending ending equipment feeds back the first negative acknowledge character (negative acknowledgment, NACK), and the first NACK is for feeding back Decoding failure；Correspondingly, which receives the NACK of receiving device transmission.

S504, the sending ending equipment send next RV of the RV1 to the receiving device, i.e., according to the first NACK RV2, corresponding coded data section.

S505, when which does not receive the corresponding coded data section of the RV2, the receiving device is to the transmission End equipment feeds back DTX；Correspondingly, which receives the DTX of sending ending equipment transmission.

S506, the sending ending equipment retransmit the corresponding coded data section of the RV2 to the receiving device；Correspondingly, this connects Receiving end equipment receives the corresponding coded data section of the RV2 of sending ending equipment transmission.

It should be understood that in Fig. 5 S504 is similar with the S310 in Fig. 3, the S505 in Fig. 5 is similar with the S320 in Fig. 3, Fig. 5 In S506 it is similar with the S330 in Fig. 3, therefore, S504~S506 can with reference to S310~S330 embodiment implement, be It avoids repeating, details are not described herein again.

S507, the receiving device are decoded according to the corresponding coded data section of the RV2.

S508, when receiving device coded data section decoding failure corresponding according to the RV2, the receiving device to The sending ending equipment feeds back the 2nd NACK, and the 2nd NACK fails for feedback decoding；Correspondingly,

The sending ending equipment receives the 2nd NACK of receiving device transmission.

S509, the sending ending equipment send next RV of the RV2 to the receiving device, i.e., according to the 2nd NACK RV3, corresponding coded data section；Correspondingly, which receives the corresponding coded data section of the RV3.

S510, the receiving device are successfully decoded according to the corresponding coded data section of the RV3.

S511, the receiving device are successfully received the data for feeding back to the sending ending equipment feeding back ACK, the ACK Block；Correspondingly, which receives the ACK of receiving device transmission.

Optionally, after S511, which can send other numbers to the receiving device according to the ACK According to block.

Data transmission method provided by the embodiments of the present application is described in detail above in conjunction with Fig. 2 to Fig. 5, below in conjunction with figure 6 to Figure 13 describe data transmission device provided by the embodiments of the present application.

Fig. 6 shows the schematic block diagram of data transmission device 600 provided by the embodiments of the present application.The data transmission device 600 include:

Receiving unit 610, the corresponding coding of the first redundancy versions RV of the data block for receiving sending ending equipment transmission Data block；

Decoding unit 620, the corresponding coded data section of the first RV for being received according to the receiving unit 610 are translated Code；

Transmission unit 630, for sending request message to the sending ending equipment, which uses when decoding failure In the corresponding coded data section of the 2nd RV of request；

The receiving unit 610 is also used to receive the request message that the sending ending equipment is sent according to the transmission unit 630, The corresponding coded data section of the 2nd RV sent.

Optionally, data transmission device further include: processing unit, the processing unit are used to send out to the sending ending equipment Before sending request message, according to the RV sequence of the RV for the coded data section having received and pre-configuration, the 2nd RV is determined.

Optionally, which is specifically used for: according to the RV of the coded data section having received and the RV sequence, really It is scheduled on before receiving the first RV, there is at least one RV not received；By at least one RV in the RV sequence Most preceding RV is determined as the 2nd RV.

Optionally, which is specifically used for: according to the RV of the coded data section having received and the RV sequence, really It is scheduled on before receiving the first RV, there is no the RV not received；By next RV of the first RV in the RV sequence, determine For the 2nd RV.

In an optional example, it will be understood by those skilled in the art that data transmission device 600 can be specially above-mentioned Receiving device in embodiment of the method, data processing equipment 600 can be used for executing in above method embodiment with receiving end The corresponding each process of equipment and/or step, to avoid repeating, details are not described herein.

It should be understood that data transmission device 600 here can be embodied in the form of functional unit.Here term " unit " It can refer to specific integrated circuit (application specific integrated circuit, ASIC), electronic circuit, use In the processor (such as shared processor, proprietary processor or group processor etc.) for executing one or more softwares or firmware program With memory, merging logic circuit and/or other appropriate components for supporting described function.

Fig. 7 provides the schematic block diagram of data transmission device 700 provided by the embodiments of the present application.The data transmission device 700 include:

Transmission unit 710, for sending the corresponding coded data of the first redundancy versions RV of data block to receiving device Section；

Receiving unit 720, for receiving the request message of receiving device transmission, which is used to work as the reception When corresponding according to the first RV coded data section decoding failure of end equipment, the corresponding coded data section of the 2nd RV of request；

The transmission unit 710 is also used to the request message received according to the receiving unit 720, to the receiving device Send the corresponding coded data section of the 2nd RV.

Optionally, the 2nd RV is the RV for the coded data section being had received according to the receiving device and the RV of pre-configuration What sequence determined.

Optionally, the 2nd RV be in the RV sequence before the first RV, the receiving device do not receive most before One RV.

Optionally, the 2nd RV is next RV of the first RV in the RV sequence, wherein the receiving device has received All RV before the first RV into the RV sequence.

In an optional example, it will be understood by those skilled in the art that data transmission device 700 can be specially above-mentioned Sending ending equipment in embodiment of the method, data transmission device 700 can be used for executing in above method embodiment with transmitting terminal The corresponding each process of equipment and/or step, to avoid repeating, details are not described herein.

It should be understood that data transmission device 700 here can be embodied in the form of functional unit.Here term " unit " Can refer to ASIC, electronic circuit, for executing one or more softwares or firmware program processor (such as shared processor, Proprietary processor or group processor etc.) and memory, merging logic circuit and/or other suitable group for supporting described function Part.

Fig. 8 provides the schematic block diagram of data transmission device 800 provided by the embodiments of the present application.The data transmission device 800 include:

Transmission unit 810, for sending the corresponding coded data of the first redundancy versions RV of data block to receiving device Section；

Receiving unit 820, for receiving the feedback message of receiving device transmission, which does not connect for feeding back Receive the corresponding coded data section of the first RV；

The transmission unit 810 is also used to retransmit the corresponding coded data section of the first RV to the receiving device.

In an optional example, it will be understood by those skilled in the art that data transmission device 800 can be specially above-mentioned Sending ending equipment in embodiment of the method, data transmission device 800 can be used for executing in above method embodiment with transmitting terminal The corresponding each process of equipment and/or step, to avoid repeating, details are not described herein.

It should be understood that data transmission device 800 here can be embodied in the form of functional unit.Here term " unit " Can refer to ASIC, electronic circuit, for executing one or more softwares or firmware program processor (such as shared processor, Proprietary processor or group processor etc.) and memory, merging logic circuit and/or other suitable group for supporting described function Part.

Fig. 9 provides the schematic block diagram of data transmission device 900 provided by the embodiments of the present application.The data transmission device 900 include:

Transmission unit 910, it is corresponding for not receiving the first redundancy versions RV of data block of sending ending equipment transmission When coded data section, feedback message is sent to the sending ending equipment, which does not receive the first RV pairs for feeding back The coded data section answered；

Receiving unit 920, the feedback message sent for receiving the sending ending equipment according to the transmission unit 910, weight The corresponding coded data section of the first RV newly sent.

In an optional example, it will be understood by those skilled in the art that data transmission device 900 can be specially above-mentioned Receiving device in embodiment of the method, data transmission device 900 can be used for executing in above method embodiment with receiving end The corresponding each process of equipment and/or step, to avoid repeating, details are not described herein.

It should be understood that data transmission device 900 here can be embodied in the form of functional unit.Here term " unit " Can refer to ASIC, electronic circuit, for executing one or more softwares or firmware program processor (such as shared processor, Proprietary processor or group processor etc.) and memory, merging logic circuit and/or other suitable group for supporting described function Part.

Figure 10 provides the schematic block diagram of data transmission device 1000 provided by the embodiments of the present application.Data transmission dress Setting 1000 includes processor 1010, transceiver 1020 and memory 1030.Wherein, processor 1010, transceiver 1020 and storage Device 1030 is communicated with each other by internal connecting path, and for storing instruction, the processor 1010 is for executing for the memory 1030 The instruction of the memory 1030 storage sends signal and/or reception signal to control the transceiver 1020.

Optionally, which includes processor, memory can also be realized by chip.

The processor 1010 is specifically used for: controlling the transceiver 1020 receives the data block that sending ending equipment is sent first The corresponding coded data block of redundancy versions RV；According to the corresponding coded data section decoding of the first RV；When decoding failure, control The transceiver 1020 sends request message to the sending ending equipment, and the request message is for requesting the corresponding coded data of the 2nd RV Section；It controls the transceiver 1020 and receives the sending ending equipment according to the request message, the corresponding coded number of the 2nd RV of transmission According to section.

It should be understood that data transmission device 1000 can be specially the receiving device in above-described embodiment, and can use The corresponding each step of receiving device and/or process in the execution above method.Optionally, which may include Read-only memory and random access memory, and instruction and data is provided to processor.The a part of of memory can also include Nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 1010 can be used The instruction stored in execution memory, and when the processor 1010 executes the instruction stored in memory, the processor 1010 for executing each step corresponding with receiving device in above-described embodiment and/or process.

It should be understood that in the embodiment of the present application, the processor of above-mentioned data transmission device can be central processing unit (central processing unit, CPU), which can also be other general processors, digital signal processor (digital signal processing, DSP), specific integrated circuit (ASIC), field programmable gate array (field- Programmable gate array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor Deng.

Figure 11 shows the schematic block diagram of data transmission device 1100 provided by the embodiments of the present application.Data transmission dress Setting 1100 includes processor 1110, transceiver 1120 and memory 1130.Wherein, processor 1110, transceiver 1120 and storage Device 1130 is communicated with each other by internal connecting path, and for storing instruction, the processor 1110 is for executing for the memory 1130 The instruction of the memory 1130 storage sends signal and/or reception signal to control the transceiver 1120.

Optionally, which includes processor, memory can also be realized by chip.

Processor 1110 is specifically used for: controlling the first redundancy version that the transceiver 1120 sends data block to receiving device The corresponding coded data section of this RV；It controls the transceiver 1120 and receives the request message that the receiving device is sent, which disappears Breath is for when receiving device coded data section decoding failure corresponding according to the first RV, requesting the corresponding volume of the 2nd RV Code data segment；The request message that the transceiver 1120 is received according to the receiving unit is controlled, is sent to the receiving device The corresponding coded data section of 2nd RV.

It should be understood that data transmission device 1100 can be specially the sending ending equipment in above-described embodiment, and can use The corresponding each step of sending ending equipment and/or process in the execution above method.Optionally, which may include Read-only memory and random access memory, and instruction and data is provided to processor.The a part of of memory can also include Nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 1110 can be used The instruction stored in execution memory, and when the processor 1110 executes the instruction stored in memory, the processor 1110 for executing each step corresponding with sending ending equipment in above-described embodiment and/or process.

It should be understood that in the embodiment of the present application, processor can be central processing unit (CPU), and processor can also be Other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) Either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be with It is that microprocessor or the processor are also possible to any conventional processor etc..

Figure 12 provides the schematic block diagram of data transmission device 1200 provided by the embodiments of the present application.Data transmission dress Setting 1200 includes processor 1210, transceiver 1220 and memory 1230.Wherein, processor 1210, transceiver 1220 and storage Device 1230 is communicated with each other by internal connecting path, and for storing instruction, the processor 1210 is for executing for the memory 1230 The instruction of the memory 1230 storage sends signal and/or reception signal to control the transceiver 1220.

Optionally, which includes processor, memory can also be realized by chip.

The processor 1210 is specifically used for: controlling the first redundancy that the transceiver 1220 sends data block to receiving device The corresponding coded data section of version RV；It controls the transceiver 1220 and receives the feedback message that the receiving device is sent, the feedback Message does not receive the corresponding coded data section of the first RV for feeding back；The transceiver 1220 is controlled to the receiving device weight Newly send the corresponding coded data section of the first RV.

It should be understood that data transmission device 1200 can be specially the sending ending equipment in above-described embodiment, and can use The corresponding each step of sending ending equipment and/or process in the execution above method.Optionally, which may include Read-only memory and random access memory, and instruction and data is provided to processor.The a part of of memory can also include Nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 1210 can be used The instruction stored in execution memory, and when the processor 1210 executes the instruction stored in memory, the processor 1210 for executing each step corresponding with sending ending equipment in above-described embodiment and/or process.

It should be understood that in the embodiment of the present application, the processor of above-mentioned data transmission device can be central processing unit (CPU), the processor can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), Field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hard Part component etc..General processor can be microprocessor or the processor is also possible to any conventional processor etc..

Figure 13 shows the schematic block diagram of data transmission device 1300 provided by the embodiments of the present application.Data transmission dress Setting 1300 includes processor 1310, transceiver 1320 and memory 1330.Wherein, processor 1310, transceiver 1320 and storage Device 1330 is communicated with each other by internal connecting path, and for storing instruction, the processor 1310 is for executing for the memory 1330 The instruction of the memory 1330 storage sends signal and/or reception signal to control the transceiver 1320.

Optionally, which includes processor, memory can also be realized by chip.

Processor 1310 is specifically used for: the first redundancy versions RV for not receiving the data block of sending ending equipment transmission is corresponding Coded data section when, control the transceiver 1320 to the sending ending equipment and send feedback message, the feedback message is for feeding back The corresponding coded data section of the first RV is not received；Control the transceiver 1320 receive the sending ending equipment disappeared according to the feedback Breath, the corresponding coded data section of the first RV of retransmission.

It should be understood that data transmission device 1300 can be specially the receiving device in above-described embodiment, and can use The corresponding each step of receiving device and/or process in the execution above method.Optionally, which may include Read-only memory and random access memory, and instruction and data is provided to processor.The a part of of memory can also include Nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 1310 can be used The instruction stored in execution memory, and when the processor 1310 executes the instruction stored in memory, the processor 1310 for executing each step corresponding with receiving device in above-described embodiment and/or process.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (read-only memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (random access memory, RAM), magnetic or disk.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims

1. a kind of data transmission method characterized by comprising

When the decoding failure, the receiving device sends request message, the request message to the sending ending equipment For requesting the corresponding coded data section of the 2nd RV；

The receiving device receives the corresponding volume of the 2nd RV that the sending ending equipment is sent according to the request message Code data segment.

2. data transmission method according to claim 1, which is characterized in that in the receiving device to the transmitting terminal Before equipment sends request message, the data transmission method further include:

The receiving device determines described second according to the RV for the coded data section having received and the RV sequence of pre-configuration RV。

3. data transmission method according to claim 2, which is characterized in that the receiving device is according to having received The RV of coded data section and the RV sequence of pre-configuration, determine the 2nd RV, comprising:

The RV for the coded data section that the receiving device has received according to and the RV sequence are determined receiving Before stating the first RV, there is at least one RV not received；

RV most preceding in the RV sequence at least one described RV is determined as the 2nd RV by the receiving device.

4. data transmission method according to claim 2, which is characterized in that the receiving device is according to having received The RV of coded data section and the RV sequence of pre-configuration, determine the 2nd RV, comprising:

The RV for the coded data section that the receiving device has received according to and the RV sequence are determined receiving Before stating the first RV, there is no the RV not received；

Next RV of first RV described in the RV sequence is determined as the 2nd RV by the receiving device.

5. a kind of data transmission method characterized by comprising

When receiving device coded data section decoding failure corresponding according to the first RV, the sending ending equipment is connect The request message that the receiving device is sent is received, the request message is for requesting the corresponding coded data section of the 2nd RV；

The sending ending equipment sends the corresponding coded number of the 2nd RV according to the request message, to the receiving device According to section.

6. data transmission method according to claim 5, which is characterized in that the 2nd RV is set according to the receiving end What the RV of the standby coded data section having received and the RV sequence of pre-configuration determined.

7. data transmission method according to claim 6, which is characterized in that the 2nd RV is in the RV sequence in institute Before stating the first RV, most previous RV that the receiving device does not receive.

8. data transmission method according to claim 6, which is characterized in that the 2nd RV is described in the RV sequence Next RV of first RV, wherein the receiving device has received all RV before the first RV described in the RV sequence.

9. a kind of data transmission method characterized by comprising

The sending ending equipment receives the feedback message that the receiving device is sent, and the feedback message does not receive for feeding back To the corresponding coded data section of the first RV；

10. a kind of data transmission method characterized by comprising

Receiving device does not receive the corresponding coded data section of the first redundancy versions RV of the data block of sending ending equipment transmission When, the receiving device sends feedback message to the sending ending equipment, and the feedback message does not receive institute for feeding back State the corresponding coded data section of the first RV；

It is corresponding that the receiving device receives the first RV that the sending ending equipment is retransmitted according to the feedback message Coded data section.

11. a kind of data transmission device characterized by comprising

Receiving unit, the corresponding coded data block of the first redundancy versions RV of the data block for receiving sending ending equipment transmission；

Decoding unit, the corresponding coded data section decoding of the first RV for being received according to the receiving unit；

Transmission unit, for sending request message to the sending ending equipment, the request message is used when the decoding failure In the corresponding coded data section of the 2nd RV of request；

The receiving unit is also used to receive the request message that the sending ending equipment is sent according to the transmission unit, hair The corresponding coded data section of the 2nd RV sent.

12. data transmission device according to claim 11, which is characterized in that the data transmission device further include:

Processing unit is used for before sending request message to the sending ending equipment, according to the coded data section having received RV and pre-configuration RV sequence, determine the 2nd RV.

13. data transmission device according to claim 12, which is characterized in that

The processing unit, the RV for the coded data section for being also used to have received according to and the RV sequence, determination are connecing Before receiving the first RV, there is at least one RV not received；And

By RV most preceding in the RV sequence at least one described RV, it is determined as the 2nd RV.

14. data transmission device according to claim 12, which is characterized in that

The processing unit, the RV for the coded data section for being also used to have received according to and the RV sequence, determination are connecing Before receiving the first RV, there is no the RV not received；And

By next RV of the first RV described in the RV sequence, it is determined as the 2nd RV.

15. a kind of data transmission device characterized by comprising

Transmission unit, for sending the corresponding coded data section of the first redundancy versions RV of data block to receiving device；

Receiving unit, for connecing when receiving device coded data section decoding failure corresponding according to the first RV The request message that the receiving device is sent is received, the request message is for requesting the corresponding coded data section of the 2nd RV；

The transmission unit is also used to the request message received according to the receiving unit, sends out to the receiving device Send the corresponding coded data section of the 2nd RV.

16. data transmission device according to claim 15, which is characterized in that the 2nd RV is according to the receiving end What the RV for the coded data section that equipment has received and the RV sequence of pre-configuration determined.

17. data transmission device according to claim 16, which is characterized in that the 2nd RV be in the RV sequence Before first RV, most previous RV that the receiving device does not receive.

18. data transmission device according to claim 16, which is characterized in that the 2nd RV is institute in the RV sequence State next RV of the first RV, wherein the receiving device is all before having received the first RV described in the RV sequence RV。

19. a kind of data transmission device characterized by comprising

Receiving unit, the feedback message sent for receiving the receiving device, the feedback message do not receive for feeding back To the corresponding coded data section of the first RV；

The transmission unit is also used to retransmit the corresponding coded data section of the first RV to the receiving device.

20. a kind of data transmission device characterized by comprising

Transmission unit, the corresponding coded data of the first redundancy versions RV of the data block for not receiving sending ending equipment transmission Duan Shi sends feedback message to the sending ending equipment, and the feedback message does not receive the first RV for feedback and corresponds to Coded data section；

Receiving unit, it is corresponding for receiving the first RV that the sending ending equipment is retransmitted according to the feedback message Coded data section.