CN107483160A

CN107483160A - A kind of retransmission feedback method, base station, terminal and computer-readable medium

Info

Publication number: CN107483160A
Application number: CN201710710103.0A
Authority: CN
Inventors: 马骥超
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2017-08-17
Filing date: 2017-08-17
Publication date: 2017-12-15

Abstract

The embodiment of the invention discloses a kind of retransmission feedback method, base station terminal and computer-readable medium, wherein method includes：Base station determines the feedback system of terminal according to the quality of destination channel, the feedback system is the mixed automatic retransfer HARQ feedback based on transmission block TB or the HARQ feedback based on code block group CBG, and the destination channel is the down channel that the base station sends target data；The base station sends control information and the target data to the terminal, the control information includes resource indication information and feedback configured information, the resource indication information indicates the resource that the target data takes, and the feedback configured information indicates that the terminal feeds back the target data with the feedback system；The base station receives the terminal and is directed to the feedback information that the target data is sent.The embodiment of the present invention determines the feedback system of terminal by the quality of destination channel, can lift descending efficiency of transmission while control signaling expense is reduced.

Description

A kind of retransmission feedback method, base station, terminal and computer-readable medium

Technical field

The present invention relates to communication technical field, more particularly to a kind of retransmission feedback method, base station, terminal and computer-readable Medium.

Background technology

With the commercialization of fourth generation mobile communication technology (4G) and the sustainable growth of mobile service, in world wide The research work for the 5th generation communication technology (5G) is started.5G is a kind of communication of multi-technical fusion, by technology more Repeatedly and innovate to meet the needs of extensive data, connection business.3G (Third Generation) Moblie partnership projects (Third Generation Partnership Project, 3GPP) set up the research project for newly eating dishes without rice or wine to study on 5G (study item, SI).According to divisions of the 5G for vertical scene, 3GPP mainly carries out grinding for new technology of eating dishes without rice or wine in terms of three Study carefully：Enhanced wireless broadband (enhanced mobile broadband, eMBB), low time delay high reliable communication (ultra- Reliable low-latency communications, URLLC) and large-scale machines type communication (massive Machine type communications, mMTC).

EMBB technologies mainly carry：The big flow mobile broadband services such as 3D/ ultra high-definition videos；MMTC technologies mainly carry： Extensive internet of things service；URLLC technologies mainly carry：Such as unmanned, industrial automation needs low time delay, highly reliable company The business connect.Demand in this three large scene be the characteristic such as highly reliable, low time delay, Large Copacity also become 5G technologies demand and Goal in research.

At present, the discussion embodied in standardization effort for 5G technologies is to be directed to new wireless access technology (New Radio Access Technology, NR) this special topic carries out, i.e. and 5G newly eats dishes without rice or wine technology.To by the discussion of the technology, it is determined that The key point such as framework and the signalling between eating dishes without rice or wine of eating dishes without rice or wine under 5G networks.

Technical research for NR, the every aspect of network has been related to it.The standardization of discussion in to(for) NR technologies at present, Job (work item) stage is had been enter into, existing certain interim conclusion.

A variety of improvement hybrid automatic repeat-request (Hybrid Automatic Repeat are have studied in NR conceptual phase ReQuest, HARQ) method, and then improve spectrum efficiency.One of which improved method is exactly to support each transmission block (Transport Block, TB) is fed back based on code block group (Code Block Group, CBG).Because in traditional LTE In system, a TB includes multiple code blocks (Code Block, CB), but can only be fed back based on TB, that is, it is whole to be only capable of feedback TB decoded result；When the TB of reception is not correctly decoded, even if data are wrong in only one of which CB, also to retransmit Whole TB data.In NR systems, data volume or CB numbers that a TB is included can exponentially increase compared to LTE, if still edge With, it is necessary to retransmit many unnecessary CB, the data throughout in NR systems can be caused if the mode fed back based on TB Deteriorate serious.Therefore, in order to lift the handling capacity of NR systems, 3GPP has been reached conclusion and has supported to be transmitted based on CBG in NR systems Feedback system, i.e., when only having in a TB if data are wrong in some CB, it is only necessary to where retransmitting these wrong CB CBG, and without retransmitting whole TB.

At present, transmission/re-transmission based on TB is return back in what situation or scene actually and how to be return back to is based on The method of TB transmission/re-transmission does not determine also.HARQ feedback based on TB and the HARQ feedback based on CBG are applied to different Scene.Switching between HARQ feedback based on TB and the HARQ feedback based on CBG is a major issue, is still subsequently to grind The Main way studied carefully.

The content of the invention

The embodiment of the present invention provides a kind of retransmission feedback method, can be lifted descending while control signaling expense is reduced Efficiency of transmission.

In a first aspect, the embodiments of the invention provide a kind of retransmission feedback method, this method includes：

Base station determines the feedback system of terminal according to the quality of destination channel, and the feedback system is based on transmission block TB's Mixed automatic retransfer HARQ feedback or the HARQ feedback based on code block group CBG, the destination channel are that the base station sends mesh Mark the down channel of data；

The base station sends control information and the target data to the terminal, and the control information indicates comprising resource Information and feedback configured information, the resource indication information indicate the resource that the target data takes, the feedback instruction letter Breath indicates that the terminal feeds back the target data with the feedback system；

The base station receives the terminal and is directed to the feedback information that the target data is sent.

Second aspect, the embodiments of the invention provide another retransmission feedback method, this method includes：

Terminal receives the control information and target data that base station is sent, and the control information is comprising resource indication information and instead Configured information is presented, the resource indication information indicates the resource that the target data takes, the feedback configured information instruction institute The feedback system of terminal is stated, the feedback system is the HARQ feedback based on TB or the HARQ feedback based on CBG, and is described The feedback system that base station determines according to the quality of destination channel, the destination channel are that the base station sends the target data Down channel；

The terminal decodes according to the control information to the target data, obtains decoded result；

The terminal is according to the feedback system and the decoded result to the base station send feedback information, the feedback Information indicates the decoded result of the target data.

The third aspect, the embodiments of the invention provide a kind of base station, the base station includes being used to perform above-mentioned first aspect The unit of method.

Fourth aspect, the embodiments of the invention provide a kind of terminal, the terminal includes being used to perform above-mentioned second aspect The unit of method.

5th aspect, it is described the embodiments of the invention provide another base station, including processor, transceiver and memory Processor, transceiver and memory are connected with each other, wherein, the memory is based on storing and supporting terminal to perform the above method Calculation machine program, the computer program include programmed instruction, and the processor is arranged to call described program instruction, performed The method of above-mentioned first aspect.

6th aspect, the embodiments of the invention provide another terminal, including processor, transceiver, input equipment, output Equipment and memory, the processor, transceiver, input equipment, output equipment and memory are connected with each other, wherein, it is described to deposit Reservoir is used to store the computer program for supporting terminal to perform the above method, and the computer program includes programmed instruction, described Processor is arranged to call described program instruction, the method for performing above-mentioned second aspect.

7th aspect, the embodiments of the invention provide a kind of computer-readable recording medium, the computer-readable storage medium Computer program is stored with, the computer program includes programmed instruction, and described program instruction makes institute when being executed by a processor The method for stating the above-mentioned first aspect of computing device or above-mentioned second aspect.

The embodiment of the present invention determines the feedback system of terminal by the quality of destination channel, reasonably by the HARQ based on TB Feedback and the HARQ feedback based on CBG combine, and can lift descending transmission effect while control signaling expense is reduced Rate.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, it is required in being described below to embodiment to use Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of schematic flow diagram of retransmission feedback method provided in an embodiment of the present invention；

Fig. 2 is a kind of TB provided in an embodiment of the present invention structural representation；

Fig. 3 A are a kind of DCI structural representations in LTE system；

Fig. 3 B are a kind of DCI structural representations in the embodiment of the present invention；

Fig. 4 is a kind of schematic flow diagram for retransmission feedback method that another embodiment of the present invention provides；

Fig. 5 is a kind of schematic flow diagram for retransmission feedback method that another embodiment of the present invention provides；

Fig. 6 is a kind of schematic flow diagram of feedback system for determining terminal provided in an embodiment of the present invention；

Fig. 7 is a kind of schematic flow diagram of the feedback system for determination terminal that another embodiment of the present invention provides；

Fig. 8 is a kind of schematic block diagram of base station provided in an embodiment of the present invention；

Fig. 9 is a kind of terminal schematic block diagram provided in an embodiment of the present invention；

Figure 10 is a kind of schematic block diagram for base station that another embodiment of the present invention provides；

Figure 11 is a kind of schematic block diagram for terminal that another embodiment of the present invention provides；

Figure 12 is a kind of schematic block diagram for terminal that another embodiment of the present invention provides.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

It should be appreciated that ought be in this specification and in the appended claims in use, term " comprising " and "comprising" instruction Described feature, entirety, step, operation, the presence of element and/or component, but it is not precluded from one or more of the other feature, whole Body, step, operation, element, component and/or its presence or addition for gathering.

It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment And be not intended to limit the present invention.As used in description of the invention and appended claims, unless on Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.

It will be further appreciated that the term "and/or" used in description of the invention and appended claims is Refer to any combinations of one or more of the associated item listed and be possible to combine, and including these combinations.

As used in this specification and in the appended claims, term " if " can be according to context quilt Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or " if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".

In the specific implementation, the terminal described in the embodiment of the present invention is including but not limited to such as with touch sensitive surface The mobile phone, laptop computer or tablet PC of (for example, touch-screen display and/or touch pad) etc it is other just Portable device.It is to be further understood that in certain embodiments, the equipment is not portable communication device, but with tactile Touch the desktop computer of sensing surface (for example, touch-screen display and/or touch pad).

In discussion below, the terminal including display and touch sensitive surface is described.It is, however, to be understood that It is that terminal can include one or more of the other physical user-interface device of such as physical keyboard, mouse and/or control-rod.

Terminal supports various application programs, such as one or more of following：Drawing application program, demonstration application journey Sequence, word-processing application, website create application program, disk imprinting application program, spreadsheet applications, game application Program, telephony application, videoconference application, email application, instant messaging applications, exercise Support application program, photo management application program, digital camera application program, digital camera application program, web-browsing application Program, digital music player application and/or video frequency player application program.

The various application programs that can be performed in terminal can use at least one public of such as touch sensitive surface Physical user-interface device.It can adjust and/or change among applications and/or in corresponding application programs and touch sensitive table The corresponding information shown in the one or more functions and terminal in face.So, the public physical structure of terminal is (for example, touch Sensing surface) the various application programs with user interface directly perceived and transparent for a user can be supported.

It is a kind of schematic flow diagram of retransmission feedback method provided in an embodiment of the present invention referring to Fig. 1, this method can wrap Include：

101st, base station determines the feedback system of terminal according to the quality of destination channel；

Above-mentioned feedback system is for mixed automatic retransfer (HARQ) feedback based on transmission block TB or based on code block group CBG's HARQ feedback, above-mentioned destination channel are the down channel that above-mentioned base station sends target data.Above-mentioned target data is just biography data. Above-mentioned terminal can be the equipment that mobile phone, tablet personal computer, personal digital assistant, wearable device etc. can be communicated with base station. The above-mentioned HARQ feedback based on transmission block TB can be fed back in units of TB, i.e., a TB uses a HARQ-ACK Bit feeds back.The above-mentioned HARQ feedback based on code block group CBG can be the feedback in units of CBG, i.e., a CBG uses one HARQ-ACK bit feed back.One TB can include one or more CBG, and a CBG includes one or more CB.Such as Fig. 2 institutes Show, the TB in figure includes 5 CBG, and each CBG includes 4 CB.If at least one CB decodings in multiple CB that a CBG is included Mistake, then the CBG decoding errors.Similarly, if at least one CBG decoding errors, the TB are solved in multiple CBG that a TB is included Code mistake.It is assumed that target data corresponding 2 TB, each TB include 4 CBG, i.e. the first CBG to the 8th CBG, the in this 8 CBG One CBG and the 5th CBG decoding failures, are 11 based on decoded result corresponding to TB HARQ feedback, and the decoded result can use 2 ratios Special position represents that this 2 bits are corresponding in turn to this 2 TB decoded result, and 1 represents decoding failure, and 0 represents successfully decoded；Base Decoded result corresponding to HARQ feedback in CBG is 10001000, and the decoded result can be represented with 8 bits, this 8 bits Position is corresponding in turn to this 8 CBG decoded result, and 1 represents decoding failure, and 0 represents successfully decoded.It is assumed that target data is corresponding 1 TB, 1 TB include 6 CBG, i.e. the first CBG to the 6th CBG, and the first CBG and the 3rd CBG decodes failure in this 6 CBG, is based on Decoded result corresponding to TB HARQ feedback is 1, and the decoded result can be represented with 1 bit, and the value of bit represents to solve for 1 Code failure, it 0 is to represent successfully decoded that the value of bit, which is,；It is 101000 based on decoded result corresponding to CBG HARQ feedback, should Decoded result can represent that this 6 bits are corresponding in turn to this 6 CBG decoded result with 6 bits, and 1 represents that decoding is lost Lose, 0 represents successfully decoded.It is appreciated that being fed back based on TB HARQ feedback in units of TB, each TB solution can be fed back Code result, in order to which base station retransmits the TB of decoding error；Fed back, can be fed back in units of CBG based on CBG HARQ feedback Each CBG decoded result, in order to which base station retransmits the CBG of decoding error.

In traditional LTE system, a TB includes multiple CB, but a TB is only anti-using a HARQ-ACK bit Feedback；When the TB of reception is not correctly decoded, even if the data in only one of which CB are wrong, also to retransmit whole TB's Data, so need to retransmit the data being correctly decoded, reduce the efficiency of transmission of down channel.Newly defined based on CBG in NR Transmission/re-transmission, indicated for the HARQ-ACK bit numbers of a TB uplink feedback at least equal to display or the use that implicitly obtains In the CBG numbers of transmission.That is, the feedback based on CBG needs to feed back the CBG for being used to transmit whole in TB decoding As a result.Compared to the feedback system based on TB, based on CBG feedback system for the expense of control channel resource and opening for signaling Pin is bigger.

It is appreciated that when the quality of destination channel is preferable, terminal is correctly decoded base station and passes through above-mentioned destination channel The probability of the target data of transmission is higher, and opening for signaling and control channel resource can be reduced using the feedback system based on TB Pin；Destination channel it is second-rate when, terminal is correctly decoded the target data that base station is sent by above-mentioned destination channel Probability it is relatively low, i.e., above-mentioned target data needs the probability that retransmits higher, can avoid retransmitting using the feedback system based on CBG Whole TB, lift efficiency of transmission.Therefore, base station can when target channel quality is good using the feedback system based on TB, Using the feedback system based on CBG when target channel quality difference, according to the actual conditions of target channel quality dynamically Switch between, the data transmission performance of down channel can be lifted while control signaling expense as far as possible.

In a kind of optional implementation, above-mentioned base station according to the quality of destination channel determine terminal feedback system it Before, the above method also includes：

Above-mentioned base station obtains the channel quality indicator (CQI) for the above-mentioned destination channel that above-mentioned terminal reports；

Above-mentioned base station determines that the feedback system of terminal includes according to the quality of destination channel：

In the case where above-mentioned CQI is more than predetermined threshold value, above-mentioned base station determines that above-mentioned feedback system is the HARQ based on TB Feedback；

In the case where above-mentioned CQI is not more than above-mentioned predetermined threshold value, above-mentioned base station determines that above-mentioned feedback system is based on CBG HARQ feedback.

Channel quality instruction (Channel Quality Indicator, CQI) is the measurement of the communication quality of wireless channel Standard.That is, CQI is the information instruction of channel quality, the noise of the quality of present channel quality, CQI and channel is represented It is more corresponding than size.In different wireless communication systems, CQI span can be different, the bigger expression channel qualities of CQI Better.The embodiment of the present invention is not construed as limiting to CQI span, and above-mentioned default threshold can be determined according to CQI span Value.Such as CQI span is 0~31, predetermined threshold value could be arranged to 12；CQI span is 1~15, presets threshold It can be 6 or 7 to be worth setting.The CQI of destination channel can reflect the quality of above-mentioned destination channel.Above-mentioned base station obtains above-mentioned terminal The channel quality indicator (CQI) of the above-mentioned destination channel reported can be the channel condition information that above-mentioned base station reports from above-mentioned terminal Above-mentioned CQI is obtained in (Channel State Information, CSI).Above-mentioned predetermined threshold value can be the value pre-set； Setting can also be re-started.Above-mentioned predetermined threshold value can be 6,7,8,9,10,11,12 etc..Above-mentioned CQI is above-mentioned destination channel Newest CQI, the current quality of above-mentioned destination channel can be reflected exactly.It is assumed that predetermined threshold value is 8, the CQI of destination channel For 9, then base station determines that feedback system is the HARQ feedback based on TB.It is assumed that predetermined threshold value is 8, the CQI of destination channel is 6, then Base station determines that feedback system is the HARQ feedback based on CBG.Target can quickly and accurately be determined by the CQI of destination channel The quality of channel, and then select suitable feedback system for terminal.

The embodiment of the present invention determines the feedback system of terminal by the COI and predetermined threshold value result of the comparison of destination channel, The feedback system of terminal can quickly, be reasonably determined, is realized simple.

Above-mentioned base station obtain N number of history corresponding to above-mentioned target data send shared by the data for needing to retransmit in data the One ratio, above-mentioned N number of historical data are what is sent in the first preset duration before current time by above-mentioned destination channel It is just to pass data more recently by the N number of of above-mentioned destination channel transmission just to pass data or above-mentioned N number of historical data；

Above-mentioned first ratio be more than the first preset proportion in the case of, above-mentioned base station determine above-mentioned feedback system be based on CBG HARQ feedback；

In the case where above-mentioned first ratio is not more than above-mentioned first preset proportion, above-mentioned base station determines above-mentioned feedback system For the HARQ feedback based on TB.

Just pass data and refer to the data just passed, retransmit the data that data refer to re-transmission.N number of history hair corresponding to above-mentioned target data It is the data in same HARQ processes to send data and above-mentioned target data.N number of history is sent corresponding to above-mentioned target data The first ratio shared by the data for needing to retransmit in data can be that above-mentioned N number of history sends above-mentioned decoding terminals failure in data History send data shared by ratio.For example, target is passed through in the first preset duration of the base station before current time Channel passes data at the beginning of have sent 5, and it is that history corresponding to target data sends data that data are passed at the beginning of this 5, and data are passed at the beginning of this 5 In 2 data need retransmitted, then the first ratio be 2 to 5.Above-mentioned first preset duration is the duration pre-set, Setting can be re-started.Above-mentioned first preset duration can be 100 microseconds, 2 milliseconds, 5 milliseconds, 10 milliseconds, 20 milliseconds, 100 Millisecond etc..Due to the correlation of channel in time, i.e. the channel situation at current time interior channel feelings for the previous period therewith Condition is similar, therefore can determine destination channel when current by quality of the above-mentioned destination channel in above-mentioned first preset duration The quality at quarter.The N is more than or equal to 1.

It is appreciated that it is to pass through above-mentioned mesh in the first preset duration before current time in above-mentioned N number of historical data In the case of marking the first biography data that channel is sent, above-mentioned first preset duration is default fixed duration, corresponding to this section of duration The number of historical data is uncertain.For example, the first preset duration is 10 milliseconds, base station before current time the The number of the first biography data sent in one preset duration by above-mentioned destination channel can be 3,4,5 etc..Above-mentioned N number of In the case that historical data is the N number of just biography data sent more recently by above-mentioned destination channel, the historical data of base station acquisition Number is fixed, i.e., above-mentioned N is default fixed value.For example, N 5, above-mentioned base station are obtained more recently by destination channel 5 data sent.

Above-mentioned first preset proportion is pre-set, and can also re-start setting.Above-mentioned first preset proportion can be with It is 1:1、1:2、1:3、1:4、1:5、1:6 etc..For example, the first preset proportion is 1:1, if before base station determines current time The first preset duration in pass data at the beginning of send by destination channel 1 or M and all need to retransmit, it is determined that terminal Feedback system is the HARQ feedback based on CBG；Otherwise, it determines the feedback system of terminal is the HARQ feedback based on TB.Illustrate again For, the first preset proportion is 1:4, if base station determine current time before the first preset duration in sent by destination channel First biography data in need the ratio shared by the data that retransmit to be more than 1:4, it is determined that the feedback system of terminal is based on CBG's HARQ feedback；Otherwise, it determines the feedback system of terminal is the HARQ feedback based on TB.

In the embodiment of the present invention, using the correlation of channel in time, it can accurately and rapidly determine that destination channel is worked as The channel quality at preceding moment, and then the feedback system of terminal is determined, realize simple.

Above-mentioned base station obtains M history corresponding to above-mentioned target data and sends the second ratio retransmitted in data shared by data Example, above-mentioned M historical data are the data sent in the second preset duration before current time by above-mentioned destination channel Or the M historical data is the M data sent more recently by the destination channel；

Above-mentioned second ratio be more than the second preset proportion in the case of, above-mentioned base station determine above-mentioned feedback system be based on CBG HARQ feedback；

In the case where above-mentioned second ratio is not more than above-mentioned second preset proportion, above-mentioned base station determines above-mentioned feedback system For the HARQ feedback based on TB.

It is in same HARQ processes that N number of history corresponding to above-mentioned target data, which sends data with above-mentioned target data, Data.Above-mentioned base station obtains the second ratio that M history corresponding to above-mentioned target data is sent in data shared by re-transmission data can To be that above-mentioned base station obtains above-mentioned M history and sends ratio shared by the history transmission data of above-mentioned decoding terminals failure in data Example, above-mentioned M history, which sends data, can both include re-transmission data, can also include and just pass data.It is assumed that base station is at current time Data and 2 re-transmission data are passed at the beginning of have sent 3 by destination channel in the first preset duration before, i.e., pass number at the beginning of this 3 It is that history corresponding to target data sends data according to data are retransmitted with 2, then the second ratio is 2 to 5.Above-mentioned second preset duration For the duration pre-set, setting can also be re-started.

Above-mentioned second preset duration can be 100 microseconds, 2 milliseconds, 5 milliseconds, 10 milliseconds, 20 milliseconds, 100 milliseconds etc..Can It is to be sent in the second preset duration before current time by above-mentioned destination channel in above-mentioned M historical data to understand Data in the case of, above-mentioned second preset duration is default fixed duration, the number of historical data corresponding to this section of duration It is uncertain.For example, the second preset duration is 10 milliseconds, and base station leads in the second preset duration before current time The number for crossing the data that above-mentioned destination channel is sent can be 3,4,5 etc..Above-mentioned M historical data be more recently by In the case of the M data that above-mentioned destination channel is sent, the number for the historical data that base station obtains is fixed, i.e., above-mentioned M is Default fixed value.For example, N 5, above-mentioned base station obtain 5 historical datas sent more recently by destination channel.

Due to the correlation of channel in time, i.e. the channel situation at current time interior channel feelings for the previous period therewith Condition is similar, therefore can determine destination channel when current by quality of the above-mentioned destination channel in above-mentioned second preset duration The quality at quarter.Above-mentioned second preset proportion is pre-set, and can also re-start setting.Above-mentioned second preset proportion can be with It is 1:1、1:2、1:3、1:4、1:5、1:6 etc..For example, the second preset proportion is 1:1, if before base station determines current time The second preset duration in by destination channel send 1 or all re-transmission data of H data, it is determined that terminal it is anti- Feedback mode is the HARQ feedback based on CBG；Otherwise, it determines the feedback system of terminal is the HARQ feedback based on TB.Citing comes again Say, the second preset proportion is 1:4, if base station determines what is sent in the second preset duration before current time by destination channel The ratio shared by data is retransmitted in data and is more than 1:4, it is determined that the feedback system of terminal is the HARQ feedback based on CBG；Otherwise, The feedback system for determining terminal is the HARQ feedback based on TB.The M is more than or equal to 1.Again for example, if base station determines More recently by target HARQ processes send 1 or multiple data retransmit, it is determined that the feedback system of terminal for based on CBG HARQ feedback；Otherwise, it determines the feedback system of terminal is the HARQ feedback based on TB；The target data needs to pass through The target HARQ processes are transmitted.

102nd, above-mentioned base station sends control information and target data to above-mentioned terminal；

Above-mentioned control information includes resource indication information and feedback configured information, and above-mentioned resource indication information indicates above-mentioned mesh The resource that data take is marked, above-mentioned feedback configured information indicates that above-mentioned terminal feeds back above-mentioned target data with above-mentioned feedback system.

Above-mentioned resource indication information indicates that the resource that above-mentioned target data takes can be that the above-mentioned target data of instruction takes Target sub-band；It can also indicate that the target sub-band that above-mentioned target data takes and the resource block taken in above-mentioned target sub-band Group (Resource Block Group, RBG) or resource block (Resource Block, RB).

The subband that target data takes can be indicated by the way of bitmap (bitmap).System band in different system It is wide possible different with number of sub-bands.For example, system bandwidth 20MHz, 4 5MHz subband, i.e. subband 0, subband are included 1st, subband 2, subband 3, above-mentioned resource indication information can take continuous 4 bits in control information, and this 4 bits are pressed Represent subband 0, subband 1, subband 2, subband 3 successively according to sequencing, when target data takes the first two subband, resource instruction Bit corresponding to information is 1100.It is also possible to use the mode of bitmap indicate target sub-band that target data takes with And the RBG taken in above-mentioned target sub-band.Bit corresponding to above-mentioned resource indication information can include Part I and the Two parts, the target sub-band that Part I instruction target data takes, the target sub-band that Part II instruction target data takes Interior RBG.Above-mentioned Part I can indicate the target sub-band that target datas take by multiple continuous bits, above-mentioned the Two parts can indicate the RBG that target data takes in above-mentioned target sub-band by multiple continuous bits.For example, 4 continuous bits are corresponding in turn to the first subband to the 4th subband, 15 companies corresponding to Part II corresponding to Part I Continuous bit is corresponding in turn to the first RBG to the 15th RBG of target sub-band, Part I 1000, represents that the first subband is Target sub-band, Part II 111111000000000, represent to take preceding 6 RBG of target sub-band.In the embodiment of the present invention, Other modes can also be used to indicate the resource that target data takes.

In the embodiment of the present invention, control information can be transmitted by the first form and the second form, the first form bag Containing the first feedback configured information, instruction terminal uses the HARQ feedback based on CBG；Second form is not comprising the first feedback instruction letter Breath, instruction terminal use the HARQ feedback based on TB.For example, if base station sends control letter using the first form to terminal Breath, then terminal is fed back using the feedback system based on CBG；If base station sends control information using the second form to terminal, Then terminal is fed back using the feedback system based on TB.The embodiment of the present invention can define an instruction terminal and be entered based on CBG The form of the control information of row feedback, for example, relative to existing DCI format in LTE system, and a kind of newly-increased DCI format, If the control information sent uses this form, terminal is fed back based on CBG；Otherwise, terminal is fed back based on TB.Together Sample, the embodiment of the present invention can also define a form of the instruction terminal based on the TB control information fed back, if send Control information uses this form, then terminal is fed back based on TB；Otherwise, terminal is fed back based on CBG.

In LTE system, not comprising feedback configured information in control information, terminal is only with the HARQ feedback based on TB. Fig. 3 A are a kind of form of the descending control instruction (Downlink Control Information, DCI) in LTE, and Fig. 3 B are DCI form in the embodiment of the present invention, it can be seen that compared to the DCI in LTE, the DCI in the embodiment of the present invention adds feedback Instructions field, it is feedback configured information in the feedback instructions field.For example, the corresponding bit of instructions field, bit are fed back The wherein side being worth for 0 and 1 represents to be fed back in units of TB, and the opposing party represents to be fed back in units of CBG.Such as Fig. 3 B It is shown, it is resource indication information in resource instructions field, feeds back in instructions field for feedback configured information.It can be referred to by control information Show the resource of end objectives data occupancy in order to which terminal correctly decodes target data；It can also indicate that terminal feedback target number According to mode.Above-mentioned control information is less to the expense for controlling resource, can accurate instruction terminal feedback system.

103rd, above-mentioned base station receives above-mentioned terminal and is directed to the feedback information that above-mentioned target data is sent.

The feedback system that above-mentioned terminal can indicate according to above-mentioned control information feeds back above-mentioned target data.Above-mentioned feedback letter Cease decoded result that can be with instruction terminal to above-mentioned target data.If above-mentioned target data, above-mentioned feedback is successfully decoded in terminal Above-mentioned target data is successfully decoded in information instruction.If terminal decodes above-mentioned target data, above-mentioned feedback information instruction not successfully Above-mentioned base station needs the TB or CBG retransmitted.For example, base station sends above-mentioned target data by a TB, and the TB includes 8 Individual CBG, i.e. the first CBG to the 8th CBG, terminal decode the 3rd CBG not successfully；If the feedback system of terminal is the HATQ based on TB Feed back, then feedback information indicates TB decoding failures, passes through a bit and represents；If the feedback system of terminal is based on CBG HATQ feedbacks, then feedback information indicate the 3rd CBG decoding failures, represented by 8 bits, can be 00100000,1 Decoding failure is represented, 0 represents successfully decoded.

In a kind of optional implementation, above-mentioned base station sends control information and above-mentioned target data bag to above-mentioned terminal Include：

Above-mentioned base station after above-mentioned control information is sent to above-mentioned terminal by control channel, by above-mentioned destination channel to Above-mentioned terminal sends above-mentioned target data.

Above-mentioned control channel can be Physical Downlink Control Channel (Physical Downlink Control Channel, ) or other channels PDCCH.Above-mentioned destination channel can be Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) or other channels.Terminal can pass through before above-mentioned target data is received Above-mentioned control information determines the resource that above-mentioned target data takes, and can be carried out solving after above-mentioned target data is received Code, reduce the stand-by period of terminal.

In the embodiment of the present invention, after base station sends control information, target data corresponding to the control information is sent, in order to Terminal can be decoded receiving the target data in time, improve the efficiency that terminal receives data.

In a kind of optional implementation, above-mentioned base station receives above-mentioned terminal and is directed to the feedback that above-mentioned target data is sent After information, the above method also includes：

Above-mentioned base station determines that above-mentioned target data needs to retransmit according to above-mentioned feedback information；

In the case where above-mentioned feedback system is based on TB HARQ feedback, above-mentioned base station retransmits target TB, above-mentioned target TB is the TB that the instruction of above-mentioned feedback information needs to retransmit；

In the case where above-mentioned feedback system is based on CBG HARQ feedback, above-mentioned base station retransmits target CBG, above-mentioned mesh Mark CBG is the CBG that the instruction of above-mentioned feedback information needs to retransmit.

It can be that above-mentioned feedback information refers to that above-mentioned base station determines that above-mentioned target data needs re-transmission according to above-mentioned feedback information Show at least one TB corresponding to above-mentioned target data or at least one CBG decoding failures.Above-mentioned base station can be according to above-mentioned anti- Feedforward information obtains the TB or CBG for needing to retransmit, i.e., described target TB or the target CBG, and is retransmitted.It is assumed that feedback 2nd TB corresponding to information instruction target data needs to retransmit, then target TB is the 2nd TB, base station based on TB retransmit this second TB.It is assumed that feedback information instruction target data corresponding to the 2nd CBG and the 5th CBG need to retransmit, then target CBG for this second CBG and the 5th CBG, base station retransmits the 2nd CBG and the 5th CBG based on CBG.It is appreciated that unit and the end of base station re-transmission Hold the unit fed back identical.If terminal is fed back in units of TB, base station is retransmitted in units of TB；If terminal with CBG is fed back for unit, then base station is retransmitted in units of CBG.

The embodiment of the present invention determines the unit of base station re-transmission according to the feedback system of terminal, and is retransmitted, and realizes simply, Efficiency of transmission can be improved.

It is above-mentioned to determine that above-mentioned target data needs to retransmit it according to above-mentioned feedback information in a kind of optional implementation Afterwards, the above method also includes：

Above-mentioned base station determines above-mentioned target TB or above-mentioned target CBG according to above-mentioned feedback information；

Above-mentioned base station sends Retransmission control information to above-mentioned terminal, and above-mentioned Retransmission control packet is containing retransmission resource instruction letter Breath, above-mentioned retransmission resource configured information indicate the retransmission resource that above-mentioned target TB or above-mentioned target CBG takes.

Above-mentioned base station determines that above-mentioned target TB or above-mentioned target CBG can be in above-mentioned feedback according to above-mentioned feedback information In the case that mode is the HARQ feedback based on TB, above-mentioned target TB is determined；It is that the HARQ based on CBG is anti-in above-mentioned feedback system In the case of feedback, above-mentioned target CBG is determined.

Above-mentioned retransmission resource configured information can be identical with the implementation of the resource indication information in previous embodiment.On State Retransmission control information and correctly decode above-mentioned target TB or above-mentioned target CBG for instruction terminal.For same data Just pass and retransmit, terminal uses same feedback system.It is assumed that terminal feeds back the first data in units of CBG, first data Just to pass data；Then the terminal is fed back in units of CBG retransmits data corresponding to first data.

The embodiment of the present invention can make it that terminal is quick, weight is correctly received by sending Retransmission control information to terminal Data are passed, improve efficiency and accuracy that terminal receives data.

It is the schematic flow diagram that the embodiment of the present invention provides another retransmission feedback method referring to Fig. 4, this method can wrap Include：

401st, terminal receives the control information and target data that base station is sent；

Above-mentioned control information includes resource indication information and feedback configured information, and above-mentioned resource indication information indicates above-mentioned mesh The resource that data take is marked, above-mentioned feedback configured information indicates the feedback system of above-mentioned terminal, and above-mentioned feedback system is based on TB HARQ feedback or HARQ feedback based on CBG, and the feedback system determined for above-mentioned base station according to the quality of destination channel, Above-mentioned destination channel is the down channel that above-mentioned base station sends above-mentioned target data；

The implementation of above-mentioned resource indication information and above-mentioned feedback configured information is identical with the mode in previous embodiment, It is not described herein in detail.Side in the method and previous embodiment of the feedback system that above-mentioned base station determines according to the quality of destination channel Method is identical.

In a kind of optional implementation, above-mentioned terminal, which receives the control information of base station transmission and target data, to be included：

Above-mentioned target after control channel obtains above-mentioned control information, is being passed through according to above-mentioned control information by blind Detecting Channel receives above-mentioned target data.

It can be that terminal is carried out in PDCCH search space to obtain above-mentioned control information from control channel above by blind Detecting Blind Detecting, trial decoding is carried out to the DCI being likely to occur, obtains above-mentioned control information.Above-mentioned control information can indicate above-mentioned The resource that destination channel takes.Therefore, above-mentioned target data can quickly and accurately be decoded according to above-mentioned control information.It is above-mentioned The DCI being likely to occur can be that terminal determines according to service condition of the control channel in nearest a period of time, determine most probable K DCI of appearance；What the height number that can also be occurred according to various DCI determined.Attempt the whole DCI of decoding, time overhead It is too big.

In the embodiment of the present invention, terminal decodes according to control information to target data, realizes simply, is decoded into power It is higher.

402nd, above-mentioned terminal decodes according to above-mentioned control information to above-mentioned target data, obtains decoded result；

Above-mentioned decoded result can be the decoded result of each TB corresponding to above-mentioned target data；It can also be above-mentioned target Each CBG decoded result corresponding to data.One TB can include multiple CBG, and a CBG includes multiple CB.Such as Fig. 2 institutes Show, the TB in figure includes 5 CBG, and each CBG includes 4 CB.If at least one CB decodings in multiple CB that a CBG is included Mistake, then the CBG decoding errors.Similarly, if at least one CBG decoding errors, the TB are solved in multiple CBG that a TB is included Code mistake.

It is above-mentioned in the case where above-mentioned feedback system is based on TB HARQ feedback in a kind of optional implementation Decoded result is the decoded result of TB corresponding to above-mentioned target data；It is the HARQ feedback based on CBG in above-mentioned feedback system In the case of, above-mentioned decoded result is the decoded result of CBG corresponding to above-mentioned target data.

It is assumed that target data corresponding 5 TB, each TB include 4 CBG, i.e. the first CBG to the 20th CBG, this 20 CBG In the first CBG and the 15th CBG decoding failure, if feedback system is the HARQ based on TB, decoded result 10010, the solution Code result can represent that this 5 bits are corresponding in turn to this 5 TB decoded result with 5 bits, and 1 represents that decoding fails, 0 Represent successfully decoded；If feedback system is the HARQ based on CBG, decoded result 10000000000000100000, the solution Code result can represent that this 20 bits are corresponding in turn to this 20 CBG decoded result with 20 bits, and 1 represents that decoding is lost Lose, 0 represents successfully decoded.Terminal feedback system be based on TB HARQ feedback in the case of, terminal is it needs to be determined that target Each TB decoded result corresponding to data, and generate feedback information according to each TB decoded result；In the feedback side of terminal In the case that formula is the HARQ feedback based on CBG, terminal it needs to be determined that the decoded result of each CBG corresponding to target data, and Decoded result according to each CBG generates feedback information.It is appreciated that the unit of decoded result is not under different feedback systems Together.

In the embodiment of the present invention, terminal determines decoded result corresponding to target data according to feedback system, can improve life Into the speed of feedback information, realize simple.

403rd, above-mentioned terminal according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base station send feedback information, it is above-mentioned Feedback information indicates the decoded result of above-mentioned target data.

Terminal of the embodiment of the present invention is fed back according to the feedback system of base station instruction, reasonably that the HARQ based on TB is anti- Feedback and the HARQ feedback based on CBG combine, and can lift descending transmission effect while control signaling expense is reduced Rate.

In a kind of optional implementation, above-mentioned terminal is according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base Send feedback information of standing includes：

Above-mentioned terminal according to above-mentioned decoded result in the case where determining that above-mentioned target data need not retransmit, to above-mentioned base Stand and send the first feedback information, above-mentioned first feedback information indicates that above-mentioned target data need not retransmit；

Above-mentioned terminal is in the case where determining that above-mentioned target data needs to retransmit according to above-mentioned decoded result, if above-mentioned feedback Mode is the HARQ feedback based on TB, then obtains target TB according to above-mentioned decoded result, and the second feedback letter is sent to above-mentioned base station Breath, above-mentioned target TB are the TB for needing to retransmit corresponding to above-mentioned target data, and above-mentioned second feedback information indicates above-mentioned base station weight Catch and state target TB；If above-mentioned feedback system is the HARQ feedback based on CBG, target CBG is obtained according to above-mentioned decoded result, The 3rd feedback information is sent to above-mentioned base station, above-mentioned target CBG is the CBG for needing to retransmit corresponding to above-mentioned target data, above-mentioned 3rd feedback information indicates that above-mentioned base station retransmits above-mentioned target CBG.

In the case where feedback system is based on TB HARQ feedback, above-mentioned decoded result is corresponding to above-mentioned target data TB decoded result, above-mentioned terminal may determine whether the re-transmission of TB needs by the decoded result and need the TB retransmitted i.e. Target TB；In the case where feedback system is based on CBG HARQ feedback, above-mentioned decoded result is corresponding to above-mentioned target data CBG decoded result, above-mentioned terminal may determine whether the re-transmission of CBG needs by the decoded result and need what is retransmitted CBG is target CBG.

In the embodiment of the present invention, terminal is fed back according to the feedback system of base station instruction, realizes simple, the efficiency of feedback It is higher.

On the basis of previous embodiment, above-mentioned terminal is according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base station After send feedback information, the above method also includes：

Above-mentioned terminal receives the Retransmission control information that above-mentioned base station is sent, and above-mentioned Retransmission control packet refers to containing retransmission resource Show information, above-mentioned retransmission resource configured information instruction retransmits the retransmission resource that data take；

Above-mentioned terminal receives the above-mentioned re-transmission data of above-mentioned base station transmission, above-mentioned re-transmission number according to above-mentioned Retransmission control information According to for above-mentioned target TB or above-mentioned target CBG.

Above-mentioned retransmission resource configured information can be identical with the implementation of the resource indication information in previous embodiment.On State Retransmission control information and be used for the above-mentioned target TB or above-mentioned target CBG of instruction terminal decoding.For example, retransmission resource indicates Information can indicate the RBG that the RBG or target CBG of target TB occupancy take, in order to the above-mentioned target TB of terminal-pair or mesh RBG corresponding to mark CBG is decoded.Above-mentioned terminal receives the above-mentioned re-transmission of above-mentioned base station transmission according to above-mentioned Retransmission control information Data can be the retransmission resource that above-mentioned terminal is specified from above-mentioned Retransmission control information, i.e., the RBG that above-mentioned re-transmission data take, obtain Take above-mentioned re-transmission data.Retransmitting data can be fed back by two ways, and a kind of is by the way of feedback just passes data, separately A kind of is to fix to use the feedback system based on CBG.

In the embodiment of the present invention, terminal receives the re-transmission data of base station transmission according to Retransmission control information, realizes simply, when Between expense it is few, it is ensured that retransmit being properly received for data.

It is above-mentioned in the case where above-mentioned feedback system is based on TB HARQ feedback in a kind of optional implementation Retransmission resource configured information indicates the retransmission resource that above-mentioned target TB takes；It is that the HARQ based on CBG is anti-in above-mentioned feedback system In the case of feedback, above-mentioned retransmission resource configured information indicates the retransmission resource that above-mentioned target CBG takes.

The target sub-band of target TB or target CBG occupancy can be indicated by the way of bitmap and in above-mentioned target The RBG taken in subband.Bit corresponding to above-mentioned retransmission resource configured information can include Part III and Part IV, the Three parts indicate the target sub-band that target TB or target CBG takes, and Part IV instruction target TB or target CBG takes RBG in target sub-band.Above-mentioned Part III can indicate that target TB or target CBG takes by multiple continuous bits Target sub-band, above-mentioned Part IV can indicate target TB or target CBG in above-mentioned mesh by multiple continuous bits Mark the RBG taken in subband.For example, 4 continuous bits corresponding to Part III are corresponding in turn to the first subband to Four subbands, 15 continuous bits corresponding to Part IV are corresponding in turn to the first RBG to the 15th RBG of target sub-band, the Three parts are 1000, and the first subband of expression is target sub-band, Part IV 111111000000000, represents to take target Preceding 6 RBG of band.

In the embodiment of the present invention, retransmission resource configured information is corresponding with the feedback system of terminal, can indicate exactly Retransmit the retransmission resource that data take.

It is the schematic flow diagram that the embodiment of the present invention provides another retransmission feedback method referring to Fig. 5, this method can wrap Include：

501st, base station and terminal, which are established, communicates to connect；

502nd, above-mentioned base station determines the feedback system of above-mentioned terminal according to the quality of destination channel；

503rd, above-mentioned base station sends control information by PDCCH to above-mentioned terminal；

Above-mentioned control information includes resource indication information and feedback configured information, and above-mentioned resource indication information indicates number of targets According to the resource of occupancy, above-mentioned feedback configured information indicates that above-mentioned terminal feeds back above-mentioned target data with above-mentioned feedback system.

504th, above-mentioned base station sends target data by above-mentioned destination channel to above-mentioned terminal；

505th, above-mentioned terminal decodes according to above-mentioned control information to above-mentioned target data, obtains decoded result；

506th, above-mentioned terminal according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base station send feedback information；

Above-mentioned feedback information indicates the decoded result of above-mentioned target data.

507th, above-mentioned base station judges whether to need to retransmit above-mentioned target data according to above-mentioned feedback information；

If so, perform 508；If it is not, perform 510.

508th, above-mentioned base station determines to retransmit the re-transmission money of data and above-mentioned re-transmission data occupancy according to above-mentioned feedback information Source；

Above-mentioned re-transmission data are the TB or CBG that above-mentioned base station retransmits according to the needs that above-mentioned feedback information determines.

509th, above-mentioned base station sends Retransmission control information and above-mentioned re-transmission data to above-mentioned terminal；

Above-mentioned Retransmission control information indicates the above-mentioned retransmission resource that above-mentioned re-transmission data take.

510th, above-mentioned base station sends new data to above-mentioned terminal.

It is that the embodiment of the present invention provides a kind of schematic flow diagram for the feedback system for determining terminal, this method can referring to Fig. 6 Including：

601st, CQI is obtained in the CSI that base station reports from terminal；

Above-mentioned CSI is the newest CSI reported.

602nd, above-mentioned base station judges whether above-mentioned CQI is more than predetermined threshold value；

If so, perform 603；If so, perform 604.

603rd, above-mentioned base station determines that above-mentioned terminal is fed back based on TB；

If newest CQI value is more than above-mentioned predetermined threshold value, show that channel quality is preferable, terminal carries out the error of data decoding Probability is relatively low, therefore can use the feedback system based on TB.Under this feedback system, terminal only needs each TB to feed back 1bit HARQ-ACK information, therefore the expense of system signaling can be saved.

604th, above-mentioned base station determines that above-mentioned terminal is fed back based on CBG.

If newest CQI value is less than or equal to above-mentioned predetermined threshold value, show that channel quality is poor, terminal carries out data solution The error probability of code is higher, therefore can use the feedback system based on CBG, and under this feedback system, each CBG of terminal is anti- 1bit HARQ-ACK information is presented, therefore the CBG data of decoding error need to be only retransmitted during the re-transmission of base station, therefore can be lifted descending Handling capacity.

The embodiment of the present invention determines the feedback system of terminal by the CQI and predetermined threshold value result of the comparison of destination channel, The feedback system of terminal can quickly, be reasonably determined, is realized simple.

It is the schematic flow diagram for the feedback system that the embodiment of the present invention provides another determination terminal referring to Fig. 7, this method It may include：

701st, judge whether reference data retransmits；

If so, perform 702；If it is not, perform 703.

It is transmitted parallel due to having multiple HARQ processes (process) simultaneously under HARQ mechanism, each data A process number can be distributed.Target data is the current data to be sent in base station.Above-mentioned target data and above-mentioned reference data pair Same process number is answered, i.e., above-mentioned target data and above-mentioned reference data are transmitted by same target process.Above-mentioned reference Before data is the above-mentioned target datas of transmission, the last data sent of the target process.It is above-mentioned whether to judge reference data Generation re-transmission can judge whether terminal is correctly decoded above-mentioned reference data.It is appreciated that above-mentioned reference data and above-mentioned mesh Mark data and take same channel, and the time being separated by is very short, due to the correlation of channel in time, it is believed that the channel Quality does not change.Therefore, if above-mentioned reference data retransmits, the probability that target data needs retransmit is higher；Otherwise, The probability that target data needs retransmit is relatively low.

702nd, the feedback system for determining terminal is to be fed back based on CBG；

Above-mentioned reference data retransmits, and shows that channel quality is poor, and the error probability that terminal carries out data decoding is higher, Therefore the feedback system based on CBG can be used.Under this feedback system, each CBG feedbacks 1bit of terminal HARQ-ACK Information, therefore the CBG data of decoding error need to be only retransmitted during the re-transmission of base station, therefore downlink throughput capacity can be lifted.

703rd, the feedback system for determining above-mentioned terminal is to be fed back based on TB.

Above-mentioned reference data does not retransmit, shows that channel quality is preferable, terminal carry out data decoding error probability compared with It is low, therefore the feedback system based on TB can be used.Under this feedback system, terminal only needs each TB feedbacks 1bit's HARQ-ACK information, therefore the expense of system signaling can be saved.

The embodiment of the present invention also provides a kind of base station, and the base station is used for the unit for performing any one of foregoing above-mentioned method. Specifically, it is a kind of schematic block diagram of base station provided in an embodiment of the present invention referring to Fig. 8.The terminal of the present embodiment includes：

Determining unit 801, for determining the feedback system of terminal according to the quality of destination channel, above-mentioned feedback system is base In transmission block TB mixed automatic retransfer HARQ feedback or HARQ feedback based on code block group CBG, above-mentioned destination channel is upper State the down channel that base station sends target data；

Transmitting element 802, for being included to above-mentioned terminal transmission control information and above-mentioned target data, above-mentioned control information Resource indication information and feedback configured information, above-mentioned resource indication information indicates the resource that above-mentioned target data takes, above-mentioned anti- Present configured information and indicate that above-mentioned terminal feeds back above-mentioned target data with above-mentioned feedback system；

Receiving unit 803, the feedback information for being directed to above-mentioned target data for receiving above-mentioned terminal and sending.

Concrete methods of realizing is identical with the method in Fig. 1, is not described herein in detail.

In a kind of optional implementation, as shown in figure 8, above-mentioned base station also includes：

Acquiring unit 804, the channel quality indicator (CQI) of the above-mentioned destination channel reported for obtaining above-mentioned terminal；

Above-mentioned determining unit 801, in the case of being more than predetermined threshold value in above-mentioned CQI, in above-mentioned base station determination It is the HARQ feedback based on TB to state feedback system；In the case where above-mentioned CQI is not more than above-mentioned predetermined threshold value, above-mentioned base station determines Above-mentioned feedback system is the HARQ feedback based on CBG.

In a kind of optional implementation, above-mentioned acquiring unit 804, it is additionally operable to obtain N corresponding to above-mentioned target data Individual history sends the first ratio shared by the data for needing to retransmit in data, and above-mentioned N number of historical data is before current time The first preset duration in the first biography data that are sent by above-mentioned destination channel；

Above-mentioned determining unit 801, in the case of being more than the first preset proportion in above-mentioned first ratio, above-mentioned base Stand and determine that above-mentioned feedback system is the HARQ feedback based on CBG；In above-mentioned first ratio no more than above-mentioned first preset proportion In the case of, above-mentioned base station determines that above-mentioned feedback system is the HARQ feedback based on TB.

In a kind of optional implementation, above-mentioned acquiring unit 804, it is additionally operable to obtain M corresponding to above-mentioned target data Individual history sends the second ratio retransmitted in data shared by data, and above-mentioned M historical data is second before current time The data sent in preset duration by above-mentioned destination channel；

Above-mentioned determining unit 801, in the case of being more than the second preset proportion in above-mentioned second ratio, above-mentioned base Stand and determine that above-mentioned feedback system is the HARQ feedback based on CBG；In above-mentioned second ratio no more than above-mentioned second preset proportion In the case of, above-mentioned base station determines that above-mentioned feedback system is the HARQ feedback based on TB.

In a kind of optional implementation, above-mentioned transmitting element 802, specifically for by control channel to above-mentioned end After end sends above-mentioned control information, above-mentioned target data is sent to above-mentioned terminal by above-mentioned destination channel.

In the embodiment of the present invention, after base station sends control information, target data corresponding to the control information is sent, in order to Terminal can be decoded receiving the target data in time.

In a kind of optional implementation, above-mentioned determining unit 802, it is additionally operable to determine according to above-mentioned feedback information above-mentioned Target data needs to retransmit；

Above-mentioned transmitting element 802, it is additionally operable in the case where above-mentioned feedback system is based on TB HARQ feedback, above-mentioned base It is the TB that the instruction of above-mentioned feedback information needs to retransmit to stand and retransmit target TB, above-mentioned target TB；It is based on CBG in above-mentioned feedback system HARQ feedback in the case of, it is that the instruction of above-mentioned feedback information needs to retransmit that above-mentioned base station, which retransmits target CBG, above-mentioned target CBG, CBG.

The embodiment of the present invention determines the unit of base station re-transmission by the feedback system of terminal, realizes simply, can improve biography Defeated efficiency.

In a kind of optional implementation, above-mentioned determining unit 802, it is additionally operable to determine according to above-mentioned feedback information above-mentioned Target TB or above-mentioned target CBG；

Above-mentioned transmitting element 802, it is additionally operable to send Retransmission control information to above-mentioned terminal, above-mentioned Retransmission control packet contains Retransmission resource configured information, above-mentioned retransmission resource configured information indicate the re-transmission that above-mentioned target TB or above-mentioned target CBG takes Resource.

The embodiment of the present invention can make it that terminal is quick, weight is correctly received by sending Retransmission control information to terminal Pass data.

The embodiment of the present invention also provides a kind of terminal, and the terminal is used for the unit for performing any one of foregoing above-mentioned method. Specifically, it is a kind of schematic block diagram of terminal provided in an embodiment of the present invention referring to Fig. 9.The terminal of the present embodiment includes：

Receiving unit 901, for receiving the control information and target data of base station transmission, above-mentioned control information includes resource Configured information and feedback configured information, above-mentioned resource indication information indicate the resource that above-mentioned target data takes, and above-mentioned feedback refers to Show that information indicates the feedback system of above-mentioned terminal, above-mentioned feedback system is the HARQ feedback based on TB or the HARQ based on CBG Feedback, and the feedback system determined for above-mentioned base station according to the quality of destination channel, above-mentioned destination channel send for above-mentioned base station The down channel of above-mentioned target data；

Decoding unit 902, for being decoded according to above-mentioned control information to above-mentioned target data, obtain decoded result；

Transmitting element 903, for according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base station send feedback information, Above-mentioned feedback information indicates the decoded result of above-mentioned target data.

Specific implementation is identical with the method in Fig. 4, is not described herein in detail.

In a kind of optional implementation, above-mentioned receiving unit 901, specifically for by blind Detecting from control channel After obtaining above-mentioned control information, above-mentioned target data is received by above-mentioned destination channel according to above-mentioned control information.

In a kind of optional implementation, above-mentioned transmitting element 903, specifically for above-mentioned terminal according to above-mentioned decoding As a result in the case of determining above-mentioned target data and need not retransmitting, the first feedback information is sent to above-mentioned base station, above-mentioned first is anti- Feedforward information indicates that above-mentioned target data need not retransmit；Above-mentioned terminal is determining that above-mentioned target data needs according to above-mentioned decoded result In the case of retransmitting, if above-mentioned feedback system is the HARQ feedback based on TB, target TB is obtained according to above-mentioned decoded result, The second feedback information is sent to above-mentioned base station；If above-mentioned feedback system is the HARQ feedback based on CBG, according to above-mentioned decoding knot Fruit obtains target CBG, and the 3rd feedback information is sent to above-mentioned base station；Above-mentioned target TB is that weight is needed corresponding to above-mentioned target data The TB of biography, above-mentioned target CBG are the CBG for needing to retransmit corresponding to above-mentioned target data；Above-mentioned second feedback information instruction is above-mentioned Base station retransmits above-mentioned target TB, and above-mentioned 3rd feedback information indicates that above-mentioned base station retransmits above-mentioned target CBG.

In a kind of optional implementation, above-mentioned receiving unit 901, it is additionally operable to receive the re-transmission control that above-mentioned base station is sent Information processed, above-mentioned Retransmission control packet configured information containing retransmission resource, above-mentioned retransmission resource configured information instruction retransmit data The retransmission resource of occupancy；

Above-mentioned receiving unit 901, it is additionally operable to the above-mentioned re-transmission for receiving above-mentioned base station according to above-mentioned Retransmission control information and sending Data, above-mentioned re-transmission data are above-mentioned target TB or above-mentioned target CBG.

In the embodiment of the present invention, retransmission resource configured information is corresponding with the feedback system of terminal, can accurately indicate weight Pass the retransmission resource that data take.

Figure 10 is referred to, Figure 10 is a kind of base station provided in an embodiment of the present invention, and the base station includes processor 1001, storage Device 1002, transceiver 1003 and bus 1004, above-mentioned processor 1001, memory 1002 and transceiver 1003 pass through bus 1004 It is connected with each other.

Processor 1001 in the base station, the feedback system of terminal is determined according to the quality of destination channel for base station, on It is the mixed automatic retransfer HARQ feedback based on transmission block TB or the HARQ feedback based on code block group CBG to state feedback system, on State the down channel that destination channel sends target data for above-mentioned base station；Above-mentioned base station sends control information and upper to above-mentioned terminal Target data is stated, above-mentioned control information includes resource indication information and feeds back configured information, in above-mentioned resource indication information instruction The resource of target data occupancy is stated, above-mentioned feedback configured information indicates that above-mentioned terminal feeds back above-mentioned number of targets with above-mentioned feedback system According to；Above-mentioned base station receives above-mentioned terminal and is directed to the feedback information that above-mentioned target data is sent.

It is a kind of terminal schematic block diagram that another embodiment of the present invention provides referring to Figure 11.The present embodiment as depicted In terminal can include：One or more processors 1101；One or more input equipments 1102, one or more output are set Standby 1103, transceiver 1106 and memory 1104.Above-mentioned processor 1101, input equipment 1102, output equipment 1103 and storage Device 1104 is connected by bus 1105.Memory 1102 is used to store computer program, and above computer program refers to including program Order, processor 1101 are used for the programmed instruction for performing the storage of memory 1102.Transceiver 1106 is used to send and receive data.Its In, processor 1101 is arranged to call said procedure instruction to perform：Control information and target data that base station is sent are received, Above-mentioned control information includes resource indication information and feedback configured information, and above-mentioned resource indication information indicates that above-mentioned target data accounts for Resource, above-mentioned feedback configured information indicate the feedback system of above-mentioned terminal, and above-mentioned feedback system is that the HARQ based on TB is anti- Feedback or the HARQ feedback based on CBG, and the feedback system determined for above-mentioned base station according to the quality of destination channel, above-mentioned target Channel is the down channel that above-mentioned base station sends above-mentioned target data；Above-mentioned terminal is according to above-mentioned control information to above-mentioned number of targets According to being decoded, decoded result is obtained；Above-mentioned terminal is sent according to above-mentioned feedback system and above-mentioned decoded result to above-mentioned base station Feedback information, above-mentioned feedback information indicate the decoded result of above-mentioned target data.

It should be appreciated that in embodiments of the present invention, alleged processor 1101 can be CPU (Central Processing Unit, CPU), the processor can also be other general processors, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other FPGAs Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at It can also be any conventional processor etc. to manage device.

Input equipment 1102 can include Trackpad, fingerprint adopts sensor and (is used for the finger print information and fingerprint for gathering user Directional information), microphone etc., output equipment 1103 can include display (LCD etc.), loudspeaker etc..

The memory 1104 can include read-only storage and random access memory, and provide instruction to processor 1101 And data.The a part of of memory 1104 can also include nonvolatile RAM.For example, memory 1104 may be used also With the information of storage device type.

In the specific implementation, processor 1101, input equipment 1102, output equipment 1103 described in the embodiment of the present invention The implementation described in the previous embodiment of the method for retransmission feedback provided in an embodiment of the present invention is can perform, also can perform The implementation of terminal described by the embodiment of the present invention, will not be repeated here.

A kind of computer-readable recording medium, above computer readable storage medium are provided in another embodiment of the invention Matter is stored with computer program, and above computer program includes programmed instruction, and said procedure instruction is realized when being executed by processor： Quality according to destination channel determines the feedback system of terminal, and above-mentioned feedback system is the mixed automatic retransfer based on transmission block TB HARQ feedback or the HARQ feedback based on code block group CBG, above-mentioned destination channel are that above-mentioned base station sends the descending of target data Channel；Above-mentioned base station sends control information and above-mentioned target data to above-mentioned terminal, and above-mentioned control information includes resource instruction letter Breath and feedback configured information, above-mentioned resource indication information indicate the resource that above-mentioned target data takes, above-mentioned feedback configured information Indicate that above-mentioned terminal feeds back above-mentioned target data with above-mentioned feedback system；Above-mentioned base station receives above-mentioned terminal and is directed to above-mentioned number of targets According to the feedback information of transmission.

A kind of computer-readable recording medium, above computer readable storage medium are provided in another embodiment of the invention Matter is stored with computer program, and above computer program includes programmed instruction, and said procedure instruction is realized when being executed by processor： Control information and target data that base station is sent are received, above-mentioned control information includes resource indication information and feedback configured information, Above-mentioned resource indication information indicates the resource that above-mentioned target data takes, and above-mentioned feedback configured information indicates the feedback of above-mentioned terminal Mode, above-mentioned feedback system are the HARQ feedback based on TB or the HARQ feedback based on CBG, and are above-mentioned base station foundation target The feedback system that the quality of channel determines, above-mentioned destination channel are the down channel that above-mentioned base station sends above-mentioned target data；On State terminal to decode above-mentioned target data according to above-mentioned control information, obtain decoded result；Above-mentioned terminal is according to above-mentioned anti- Feedback mode and above-mentioned decoded result indicate the decoding of above-mentioned target data to above-mentioned base station send feedback information, above-mentioned feedback information As a result.

Above computer readable storage medium storing program for executing can be the internal storage unit of the above-mentioned terminal of foregoing any embodiment, example Such as the hard disk or internal memory of terminal.Above computer readable storage medium storing program for executing can also be the External memory equipment of above-mentioned terminal, such as The plug-in type hard disk being equipped with above-mentioned terminal, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card) etc..Further, above computer readable storage medium storing program for executing can also be wrapped both Including the internal storage unit of above-mentioned terminal also includes External memory equipment.Above computer readable storage medium storing program for executing is above-mentioned for storing Other programs and data needed for computer program and above-mentioned terminal.Above computer readable storage medium storing program for executing can be also used for temporarily When store the data that has exported or will export.

Figure 12 is illustrated that the block diagram of the part-structure of the mobile phone related to terminal provided in an embodiment of the present invention.Reference chart 12, mobile phone includes：Radio frequency (Radio Frequency, RF) circuit 1210, memory 1220, input block 1230, display unit 1240th, sensor 1250, voicefrequency circuit 1260, Wireless Fidelity (wireless fidelity, WiFi) module 1270, processor The part such as 1280 and power supply 1290.It will be understood by those skilled in the art that the handset structure shown in Figure 12 is not formed pair The restriction of mobile phone, it can include than illustrating more or less parts, either combine some parts or different part cloth Put.

Each component parts of mobile phone is specifically introduced with reference to Figure 12：

RF circuits 1210 can be used for receive and send messages or communication process in, the reception and transmission of signal, especially, by base station After downlink information receives, handled to processor 1280；In addition, it is sent to base station by up data are designed.Generally, RF circuits 1210 include but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition, RF circuits 1210 can also be led to by radio communication and network and other equipment Letter.Above-mentioned radio communication can use any communication standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), WCDMA (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), Email, Short Message Service (Short Messaging Service, SMS) etc..

Memory 1220 can be used for storage software program and module, and processor 1280 is stored in memory by operation 1220 software program and module, so as to perform the various function application of mobile phone and data processing.Memory 1220 can be led To include storing program area and storage data field, wherein, storing program area can storage program area, needed at least one function Application program (such as sound-playing function, image player function etc.) etc.；Storage data field can store uses institute according to mobile phone Data (such as voice data, phone directory etc.) of establishment etc..Stored in addition, memory 1220 can include high random access Device, nonvolatile memory can also be included, a for example, at least disk memory, flush memory device or other volatibility are consolidated State memory device.

Input block 1230 can be used for the numeral or character information for receiving input, and produce with the user of mobile phone set with And the key signals input that function control is relevant.Specifically, input block 1230 may include contact panel 1231 and other inputs Equipment 1232.Contact panel 1231, also referred to as touch-screen, collect touch operation (such as user of the user on or near it Use the behaviour of any suitable object such as finger, stylus or annex on contact panel 1230 or near contact panel 1230 Make), and corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 1230 may include touch detection Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it Contact coordinate is converted into, then gives processor 1280, and the order sent of reception processing device 1280 and can be performed.In addition, The polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave can be used to realize contact panel 1230.Except touch surface Plate 1230, input block 1230 can also include other input equipments 1232.Specifically, other input equipments 1232 can include But it is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc. It is one or more.

Display unit 1240 can be used for display by user input information or be supplied to user information and mobile phone it is each Kind menu.Display unit 1240 may include display panel 1241, optionally, can use liquid crystal display (Liquid Crystal Display, LCD), the form such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) To configure display panel 1241.Further, contact panel 1230 can cover display panel 1241, when contact panel 1230 detects To after the touch operation on or near it, processor 1280 is sent to determine the type of touch event, is followed by subsequent processing device 1280 provide corresponding visual output according to the type of touch event on display panel 1241.Although in fig. 12, touch surface Plate 1230 and display panel 1241 are the parts independent as two to realize the input of mobile phone and input function, but some In embodiment, contact panel 1230 and display panel 1241 can be integrated and realize input and the output function of mobile phone.

Mobile phone may also include at least one sensor 1250, such as optical sensor, motion sensor and other sensors. Specifically, optical sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to ambient light Light and shade adjust the brightness of display panel 1241, proximity transducer can close display panel when mobile phone is moved in one's ear 1241 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (generally three axles) and add The size of speed, size and the direction of gravity are can detect that when static, application (such as the horizontal/vertical screen available for identification mobile phone posture Switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；As for mobile phone also The other sensors such as configurable gyroscope, barometer, hygrometer, thermometer, infrared ray sensor, will not be repeated here.

Voicefrequency circuit 1260, loudspeaker 1261, microphone 1262 can provide the COBBAIF between user and mobile phone.Audio Electric signal after the voice data received conversion can be transferred to loudspeaker 1261, is changed by loudspeaker 1261 by circuit 1260 Exported for voice signal；On the other hand, the voice signal of collection is converted to electric signal by microphone 1262, by voicefrequency circuit 1260 Voice data is converted to after reception, then after voice data output processor 1280 is handled, through RF circuits 1210 to be sent to ratio Such as another mobile phone, or voice data is exported to memory 1220 further to handle.

WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronicses postal by WiFi module 1270 Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Figure 12 is shown WiFi module 1270, but it is understood that, it is simultaneously not belonging to must be configured into for mobile phone, can not change as needed completely Become in the essential scope of invention and omit.

Processor 1280 is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, By running or performing the software program and/or module that are stored in memory 1220, and call and be stored in memory 1220 Interior data, the various functions and processing data of mobile phone are performed, so as to carry out integral monitoring to mobile phone.Optionally, processor 1280 may include one or more processing units；Preferably, processor 1280 can integrate application processor and modulation /demodulation processing Device, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is mainly located Manage radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1280.

Mobile phone also includes the power supply 1290 (such as battery) to all parts power supply, it is preferred that power supply can pass through power supply Management system and processor 1280 are logically contiguous, so as to realize management charging, electric discharge and power consumption pipe by power-supply management system The functions such as reason.

Although being not shown, mobile phone can also include camera, bluetooth module etc., will not be repeated here.

Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein Member and algorithm steps, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This A little functions are performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specially Industry technical staff can realize described function using distinct methods to each specific application, but this realization should not Think beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, the end of foregoing description End and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed terminal and method, it can be passed through Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of said units, only Only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can be tied Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed phase Coupling or direct-coupling or communication connection between mutually can be INDIRECT COUPLING or the communication by some interfaces, device or unit Connection or electricity, the connection of mechanical or other forms.

Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.This hair Unit in bright embodiment terminal can be combined, divided and deleted according to actual needs.

The above-mentioned unit illustrated as separating component can be or may not be physically separate, show as unit The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs Purpose.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.

If above-mentioned integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part to be contributed in other words to prior art, or all or part of the technical scheme can be in the form of software product Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment above method of the present invention Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced Change, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection domain be defined.

Claims

A kind of 1. retransmission feedback method, it is characterised in that including：

Base station determines the feedback system of terminal according to the quality of destination channel, and the feedback system is the mixing based on transmission block TB Autonomous retransmission HARQ feedback or the HARQ feedback based on code block group CBG, the destination channel are that the base station sends number of targets According to down channel；

The base station sends control information to the terminal and the target data, the control information include resource indication information With feedback configured information, the resource indication information indicates the resource that the target data takes, and the feedback configured information refers to Show that the terminal feeds back the target data with the feedback system；

The base station receives the terminal and is directed to the feedback information that the target data is sent.
2. according to the method for claim 1, it is characterised in that the base station determines terminal according to the quality of destination channel Before feedback system, methods described also includes：

The base station obtains the channel quality indicator (CQI) for the destination channel that the terminal reports；

The base station determines that the feedback system of terminal includes according to the quality of destination channel：

In the case where the CQI is more than predetermined threshold value, the base station determines that the feedback system is the HARQ feedback based on TB；

In the case where the CQI is not more than the predetermined threshold value, the base station determines that the feedback system is based on CBG's HARQ feedback.
3. according to the method for claim 1, it is characterised in that the base station determines terminal according to the quality of destination channel Before feedback system, methods described also includes：

The base station obtains first that N number of history corresponding to the target data is sent shared by the data for needing to retransmit in data and compared Example, N number of historical data are the first biography sent in the first preset duration before current time by the destination channel Data or N number of historical data are the N number of just biography data sent more recently by the destination channel；

The base station determines that the feedback system of terminal includes according to the quality of destination channel：

In the case where first ratio is more than the first preset proportion, the base station determines that the feedback system is based on CBG HARQ feedback；

In the case where first ratio is not more than first preset proportion, the base station determines that the feedback system is base In TB HARQ feedback.
4. according to the method for claim 1, it is characterised in that the base station determines terminal according to the quality of destination channel Before feedback system, methods described also includes：

The base station obtains M history corresponding to the target data and sends the second ratio retransmitted in data shared by data, institute M historical data is stated as the data sent in the second preset duration before current time by the destination channel or institute It is the M data sent more recently by the destination channel to state M historical data；

The base station determines that the feedback system of terminal includes according to the quality of destination channel：

In the case where second ratio is more than the second preset proportion, the base station determines that the feedback system is based on CBG HARQ feedback；

In the case where second ratio is not more than second preset proportion, the base station determines that the feedback system is base In TB HARQ feedback.
5. according to the method described in Claims 1-4 any one, it is characterised in that the base station sends to the terminal and controlled Information processed and the target data include：

The base station to the terminal by control channel after the control information is sent, by the destination channel to described Terminal sends the target data.
6. according to the method described in Claims 1-4 any one, it is characterised in that the base station receives the terminal and is directed to After the feedback information that the target data is sent, methods described also includes：

The base station determines that the target data needs to retransmit according to the feedback information；

In the case where the feedback system is based on TB HARQ feedback, the base station retransmits target TB, the target TB and is The feedback information instruction needs the TB retransmitted；

In the case where the feedback system is based on CBG HARQ feedback, the base station retransmits target CBG, the target CBG The CBG for needing to retransmit for feedback information instruction.
7. according to the method for claim 6, it is characterised in that described to determine the target data according to the feedback information After needing re-transmission, methods described also includes：

The base station determines the target TB or the target CBG according to the feedback information；

The base station to the terminal send Retransmission control information, the Retransmission control packet configured information containing retransmission resource, The retransmission resource configured information indicates the retransmission resource that the target TB or target CBG takes.
A kind of 8. retransmission feedback method, it is characterised in that including：

Terminal receives the control information and target data that base station is sent, and the control information includes resource indication information and feedback refers to Show information, the resource indication information indicates the resource that the target data takes, and the feedback configured information indicates the end The feedback system at end, the feedback system are the HARQ feedback based on TB or the HARQ feedback based on CBG, and are the base station The feedback system that quality according to destination channel determines, the destination channel are that the base station sends the descending of the target data Channel；

The terminal decodes according to the control information to the target data, obtains decoded result；

The terminal is according to the feedback system and the decoded result to the base station send feedback information, the feedback information Indicate the decoded result of the target data.
9. according to the method for claim 8, it is characterised in that the terminal receives the control information and target that base station is sent Data include：

The destination channel after control channel obtains the control information, is being passed through according to the control information by blind Detecting Receive the target data.
10. according to the method for claim 9, it is characterised in that in the feedback system for the HARQ feedback based on TB In the case of, the decoded result is the decoded result of TB corresponding to the target data；It is based on CBG's in the feedback system In the case of HARQ feedback, the decoded result is the decoded result of CBG corresponding to the target data.
11. according to the method described in claim 8 to 10 any one, it is characterised in that the terminal is according to the feedback side Formula and the decoded result include to the base station send feedback information：

The terminal is sent out in the case where determining that the target data need not retransmit according to the decoded result to the base station The first feedback information is sent, first feedback information indicates that the target data need not retransmit；

The terminal is in the case where determining that the target data needs to retransmit according to the decoded result, if the feedback system For the HARQ feedback based on TB, then target TB is obtained according to the decoded result, the second feedback information, institute are sent to the base station It is the TB for needing to retransmit corresponding to the target data to state target TB, and second feedback information is indicated described in the base station re-transmission Target TB；If the feedback system is the HARQ feedback based on CBG, target CBG is obtained according to the decoded result, to described Base station sends the 3rd feedback information, and the target CBG is the CBG for needing to retransmit corresponding to the target data, and the described 3rd is anti- Feedforward information indicates that the base station retransmits the target CBG.
12. according to the method for claim 11, it is characterised in that the terminal is according to the feedback system and the decoding As a result to after the base station send feedback information, methods described also includes：

The terminal receives the Retransmission control information that the base station is sent, and the Retransmission control packet is containing retransmission resource instruction letter Breath, the retransmission resource configured information instruction retransmit the retransmission resource that data take；

The terminal receives the re-transmission data of the base station transmission according to the Retransmission control information, and the re-transmission data are The target TB or target CBG.
13. according to the method for claim 12, it is characterised in that in the feedback system for the HARQ feedback based on TB In the case of, the retransmission resource configured information indicates the retransmission resource that the target TB takes；The feedback system be based on In the case of CBG HARQ feedback, the retransmission resource configured information indicates the retransmission resource that the target CBG takes.
14. a kind of base station, it is characterised in that including for performing the method as described in claim 1-7 any claims Unit.
15. a kind of terminal, it is characterised in that including for performing the method as described in claim 8-13 any claims Unit.
A kind of 16. terminal, it is characterised in that including processor, transceiver, input equipment, output equipment and memory, the place Device, transceiver, input equipment, output equipment and memory is managed to be connected with each other, wherein, the memory is used to store computer journey Sequence, the computer program include programmed instruction, and the processor is arranged to call described program instruction, performs such as right It is required that the method described in any one of 8-13.
A kind of 17. base station, it is characterised in that including processor, transceiver and memory, the processor, transceiver and storage Device is connected with each other, wherein, the memory is used to store computer program, and the computer program includes programmed instruction, described Processor is arranged to call described program instruction, performs the method as described in claim any one of 1-7.
A kind of 18. computer-readable recording medium, it is characterised in that the computer-readable storage medium is stored with computer program, The computer program includes programmed instruction, and described program instruction makes the computing device such as right when being executed by a processor It is required that the method described in any one of 1-7 or 8-13.