CN108270525A

CN108270525A - Redundancy versions transmission method and equipment

Info

Publication number: CN108270525A
Application number: CN201611264649.XA
Authority: CN
Inventors: 张长; 赵毅男
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2018-07-10
Anticipated expiration: 2036-12-30
Also published as: CN108270525B

Abstract

The embodiment of the present application provides a kind of redundancy versions transmission method and equipment, sending ending equipment is based on data bit to be transmitted and generates the first RV and sent to receiving device, if receiving device fails to be correctly decoded the part or all of of data to be transmitted bit based on the first RV, receiving device sends feedback information to sending ending equipment, and sending ending equipment generates the 2nd RV according to the feedback information.During being somebody's turn to do, after retransmitting every time, if the incorrectly decoded data to be transmitted bit of receiving device is part or all of, the transmission of feedback information RV that then sending ending equipment is sent according to receiving device, the initial position of the RV and length can adaptively be adjusted according to feedback information, avoid the wasting of resources caused by sending the RV of regular length.

Description

Redundancy versions transmission method and equipment

Technical field

The invention relates to the communication technology more particularly to a kind of redundancy versions transmission method and equipment.

Background technology

In wireless communication system, to ensure spectrum efficiency, generally using link adaptation techniques, such as in long evolving system In (Long Term Evolution, LTE) and the 5th generation (the 5th Generation, 5G) for standardizing etc., are wireless Link adaptation techniques are used in communication system.In link adaptation techniques, generally higher operating point is used to obtain frequency spectrum Gain in efficiency, i.e., the information bit error rate (Information Block Error when sending ending equipment communicates with receiving device Rate, iBLER) it is higher, such as up to 10% or so.Higher iBLER brings more re-transmission, for this purpose, wireless communication system With reference to incremental redundancy (Incremental Redundancy, IR) hybrid automatic repeat-request (Hybrid Automatic Retransmission Request, HARQ) mechanism retransmitted.

Under existing IR HARQ mechanisms, different channel quality informations (Channel Quality Information, CQI) corresponding different modulation and coded format (Modulation and Coding scheme, MCS), different MCS are corresponded to The bit sequence of different length, the bit sequence that the corresponding multiple length of same MCS are identical, initial position is different are different Redundancy versions (Redundancy Version, RV).Wherein, the length of bit sequence can be referred to as RV granularities.In communication process, Sending ending equipment selects corresponding MCS based on initial channel status information, generates multiple length in circular buffer according to MCS Bit sequences identical, that initial position is different, i.e., multiple RV are spent, and selects Initial R V from multiple RV and (is subsequently referred to as RV0), when subsequently retransmitting each time, from circular buffer selecting RV is retransmitted.

Under above-mentioned IR HARQ mechanisms, when causing the CQI reported expired there are CQI measurement errors or delay factor, So that CQI based on when CQI during actual transmissions and selection MCS is not inconsistent, cause to select unsuitable MCS, and then cause It is inaccurate according to the bitstream length of the obtained RV0 of the MCS, and retransmit granularity, i.e., RV granularities are equal to the length of RV0.When RV0's When length is larger, cause to transmit every time, including transmit for the first time and it is subsequent it is each re-transmission can occupy more resource, cause The wasting of resources.

Invention content

The embodiment of the present application provides a kind of redundancy versions transmission method and equipment, is given birth to according to the feedback information of receiving device Into redundancy versions, the wasting of resources is avoided.

In a first aspect, the embodiment of the present application provides a kind of redundancy versions transmission method, this method is from sending ending equipment What angle was described, this method includes：Sending ending equipment is based on data bit to be transmitted and generates the first RV and to receiving terminal Equipment is sent, if receiving device fails to be correctly decoded the part or all of of data to be transmitted bit, receiving terminal based on the first RV Equipment sends feedback information to sending ending equipment, and sending ending equipment generates the 2nd RV according to the feedback information.

In the above method, after retransmitting every time, if the part of the incorrectly decoded data to be transmitted bit of receiving device or complete Portion, then the initial position of transmission of feedback information RV, the RV that sending ending equipment is sent according to receiving device and length can bases Feedback information adaptively adjusts, and avoids the wasting of resources caused by sending the RV of regular length.

In a kind of feasible realization method, the 2nd RV that states is generated based on the data bit to be transmitted.

In a kind of feasible realization method, when first redundancy versions are the redundancy versions of initial transmission, described the Redundancy versions of two redundancy versions for re-transmission for the first time；Alternatively, when first redundancy versions are the redundancy versions retransmitted, it is described It is successively transmitted during adjacent for the sending ending equipment version of retransmitted redundant twice of the first redundancy versions and second redundancy versions Redundancy versions.

In the above method, successively transmission when transmitting RV twice that the first RV and the 2nd RV are that the sending ending equipment is adjacent RV realizes the part or all of of receiving device incorrectly decoded data to be transmitted bit every time, then sending ending equipment is according to connecing The feedback information generation redundancy versions that receiving end equipment is sent, avoid the waste of resource.

In a kind of feasible realization method, the feedback information indicates that the initial position of the 2nd RV includes：The feedback Information indicates the relationship of the initial position of the 2nd RV and the final position of the first RV, and the sending ending equipment is according to institute It states feedback information and sends the 2nd RV, including：The sending ending equipment determines the starting of the 2nd RV according to the relationship Position, and the 2nd RV is sent according to the initial position.

In the above method, receiving terminal is according to the initial position of the 2nd RV and the relationship of the final position of the first RV, to transmission End sets the initial position of the 2nd RV of instruction, and the length of the RV retransmitted every time is avoided to fix.

In a kind of feasible realization method, the sending ending equipment selectes the first modulation with compiling when sending a RV Code mode MCS, the feedback information indicate that the initial position of the 2nd RV includes：The feedback information indicates the first MCS's The difference of index and the index of the 2nd MCS；

The sending ending equipment sends the 2nd RV according to the feedback information and includes：

The sending ending equipment is according to determining the index of the first MCS and the difference of the index of the 2nd MCS The length of 2nd RV sends the 2nd RV according to the length.

In the above method, receiving terminal sets the length for indicating the 2nd RV to transmitting terminal according to the difference of MCS indexes so that hair Sending end equipment determines the length of this RV retransmitted according to length, and the length of the RV retransmitted every time is avoided to fix.

In a kind of feasible realization method, the sending ending equipment selectes the first MCS when sending a RV, described First MCS determines that the feedback information indicates that the initial position of the 2nd RV includes based on the first CQI：The feedback information Indicate the difference of the index and the index of the 2nd CQI of the first CQI；

The sending ending equipment is according to determining the index of the first CQI and the difference of the index of the 2nd CQI The length of 2nd RV sends the 2nd RV according to the length.

In the above method, by dynamic generation RV, flexibly change RV granularities, avoid CQI and selection MCS during actual transmissions When based on CQI be not inconsistent caused by the wasting of resources.

Second aspect, the embodiment of the present application provide a kind of redundancy versions generation method, and this method is from receiving device Angle is described, and this method includes：The first redundancy versions RV that sending ending equipment is sent is received, the first RV is the hair Sending end equipment is generated based on data bit to be transmitted；If the receiving device is based on the incorrectly decoded institutes of the first RV The part or all of of data bit to be transmitted is stated, then sends feedback information to the sending ending equipment, the feedback information is used In at least one of length for indicating the initial position of the 2nd RV, the 2nd RV.

In the above method, after retransmitting every time, if the part of the incorrectly decoded data to be transmitted bit of receiving device or complete Portion then sends feedback information to sending ending equipment, generates redundancy versions according to feedback information for sending ending equipment, avoids resource Waste.

In a kind of feasible realization method, the 2nd RV is generated based on the data bit to be transmitted.

In a kind of feasible realization method, the feedback information indicates that the initial position of the 2nd RV includes：The feedback Information indicates the relationship of the initial position of the 2nd RV and the final position of the first RV.

In a kind of feasible realization method, first modulation is sent with coding mode MCS for the sending ending equipment The MCS selected during one RV,

The receiving device selects the 2nd MCS, sends the feedback information, and the feedback information indicates rising for the 2nd RV Beginning position includes：The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS.

In a kind of feasible realization method, first modulation is sent with coding mode MCS for the sending ending equipment The MCS selected during one RV, the first MCS determined based on the first CQI,

The receiving device determines the 2nd CQI, sends feedback information, and the feedback information indicates the start bit of the 2nd RV Put including：The feedback information indicates the difference of the index and the index of the 2nd CQI of the first CQI.

The third aspect, the embodiment of the present application provide a kind of sending ending equipment, including：

Transceiver is based on number to be transmitted for sending the first redundancy versions RV, the first RV to receiving device According to bit generation；

If part or complete of the receiving device based on the incorrectly decoded data to be transmitted bits of the first RV Portion, then the transceiver be additionally operable to receive the feedback information that the receiving device is sent, the feedback information is used to indicate the The initial position of two RV, at least one of the length of the 2nd RV；

The transceiver is additionally operable to send the 2nd RV to the receiving device.

In a kind of feasible realization method, the feedback information indicates that the initial position of the 2nd RV includes：The feedback Information indicates the relationship of the initial position of the 2nd RV and the final position of the first RV,

The processor is used to determine the initial position of the 2nd RV according to the relationship；

The transceiver is used to send the 2nd RV according to the initial position.

In a kind of feasible realization method, the processor determines to select the first modulation and coding staff during a RV Formula MCS, the feedback information indicate that the initial position of the 2nd RV includes：The feedback information indicates the index of the first MCS With the difference of the index of the 2nd MCS；

The processor is used for according to determining the index of the first MCS and the difference of the index of the 2nd MCS The length of 2nd RV；

The transceiver is used to send the 2nd RV according to the length.

In a kind of feasible realization method, the processor is used to select when the transceiver sends a RV First MCS, the first MCS determine that the feedback information indicates that the initial position of the 2nd RV includes based on the first CQI： The feedback information indicates the difference of the index and the index of the 2nd CQI of the first CQI；

The processor is used for according to determining the index of the first CQI and the difference of the index of the 2nd CQI The length of 2nd RV；

The transceiver is used to send the 2nd RV according to the length.

Fourth aspect, the embodiment of the present application provide a kind of receiving device, including：

The transceiver, for receiving the first redundancy versions RV from sending ending equipment, the first RV is the hair Sending end equipment is generated based on data bit to be transmitted；

If part of the receiving device based on the incorrectly decoded data bits to be transmitted of the first RV or All, the transceiver is used to send feedback information to the sending ending equipment, and the feedback information is used to indicate the 2nd RV's Initial position, at least one of the length of the 2nd RV.

In a kind of feasible realization method, the receiving device further includes：Processor, first modulation and coding Mode MCS is that the sending ending equipment sends the MCS selected during a RV,

The processor is for the 2nd MCS of selection；

For the transceiver for sending the feedback information, the feedback information indicates that the initial position of the 2nd RV includes： The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS.

In a kind of feasible realization method, the receiving device further includes processor, first modulation and coding Mode MCS is that the sending ending equipment sends the MCS selected during a RV, and the first MCS is determined based on the first CQI,

The processor is used to determine the 2nd CQI；

For the transceiver for sending the feedback information, the feedback information indicates that the initial position of the 2nd RV includes： The feedback information is used to indicate the difference of the index and the index of the 2nd CQI of the first CQI.

5th aspect, the embodiment of the present application provide a kind of sending ending equipment, including：

Sending module is based on to be transmitted for sending the first redundancy versions RV, the first RV to receiving device Data bit generation；

Receiving module, if being based on the incorrectly decoded data to be transmitted ratios of the first RV for the receiving device Special is part or all of, then receives the feedback information that the receiving device is sent, and the feedback information is used to indicate the 2nd RV Initial position, the 2nd RV at least one of length；

The sending module is additionally operable to send the 2nd RV according to the feedback information.

Above-mentioned sending ending equipment is used to implement in any possible realization method of as above first aspect or first aspect, Each step applied to sending ending equipment.

6th aspect, the embodiment of the present application provide a kind of receiving device, including：

Receiving module, for receiving the first redundancy versions RV of sending ending equipment transmission, the first RV is the transmission End equipment is generated based on data bit to be transmitted；

Sending module, if being based on the incorrectly decoded data to be transmitted of the first RV for the receiving device Bit it is part or all of, then send feedback information, the feedback information is used to indicate the initial position of the 2nd RV, described second At least one of length of RV.

Above-mentioned receiving device is used to implement in any possible realization method of as above second aspect or second aspect, Each step applied to receiving device.

7th aspect, the embodiment of the present application provide a kind of sending ending equipment, including：Processor, memory, communication interface and System bus, the memory and the communication interface are connected to the processor by the system bus and completed each other Communication, the memory is for storing computer executed instructions, and the communication interface is used for and other equipment communicates, institute Processor is stated for running the computer executed instructions, the sending ending equipment is made to perform as above first aspect or first aspect Any possible realization method each step.

Eighth aspect, the embodiment of the present application provide a kind of receiving device, including：Processor, memory, communication interface and System bus, the memory and the communication interface are connected to the processor by the system bus and completed each other Communication, the memory is for storing computer executed instructions, and the communication interface is used for and other equipment communicates, institute Processor is stated for running the computer executed instructions, the receiving device is made to perform as above second aspect or second aspect Any feasible realization method each step.

9th aspect, the embodiment of the present application provides a kind of computer storage media, for storing above-mentioned sending ending equipment institute Computer software instructions, it includes for causing sending ending equipment to perform any of as above first aspect or first aspect Each step of possible realization method.

Tenth aspect, the embodiment of the present application provides a kind of computer storage media, for storing above-mentioned sending ending equipment institute Computer software instructions, it includes for causing receiving device to perform any of as above first aspect or first aspect Each step of possible realization method.

Tenth on the one hand, and the embodiment of the present application provides a kind of sending ending equipment and includes：Memory and processor, memory are used In storage program instruction, processor is used to call the program instruction in memory, realizes and is sent out described in above-mentioned each method embodiment The function of sending end equipment.

12nd aspect, the embodiment of the present application provide a kind of receiving device and include：Memory and processor, memory are used In storage program instruction, processor is used to call the program instruction in memory, realizes and is connect described in above-mentioned each method embodiment The function of receiving end equipment.

Redundancy versions transmission method provided by the embodiments of the present application and equipment, sending ending equipment are based on data ratio to be transmitted Spy the first RV of generation is simultaneously sent to receiving device, if receiving device fails to be correctly decoded data to be transmitted ratio based on the first RV Special is part or all of, and receiving device sends feedback information to sending ending equipment, and sending ending equipment is given birth to according to the feedback information Into the 2nd RV.During being somebody's turn to do, after retransmitting every time, if the part of the incorrectly decoded data to be transmitted bit of receiving device or complete Portion, then the initial position of transmission of feedback information RV, the RV that sending ending equipment is sent according to receiving device and length can bases Feedback information adaptively adjusts, and avoids the wasting of resources caused by sending the RV of regular length.

Description of the drawings

Fig. 1 is the schematic diagram of circular buffer；

The system architecture schematic diagram that Fig. 2 is applicable in by the application redundancy versions generation method；

Fig. 3 is a kind of signaling diagram of redundancy versions generation method provided by the embodiments of the present application；

Fig. 4 is the schematic diagram of circular buffer in the application another RV generation method；

Fig. 5 is the structure diagram of the application sending ending equipment embodiment one；

Fig. 6 is the structure diagram of the application receiving device embodiment one；

Fig. 7 is the structure diagram of the application sending ending equipment embodiment two；

Fig. 8 is the structure diagram of the application receiving device embodiment two；

Fig. 9 is the structure diagram of the application sending ending equipment embodiment three；

Figure 10 is the structure diagram of the application sending ending equipment example IV；

Figure 11 is the structure diagram of the application sending ending equipment example IV；

Figure 12 is the structure diagram of the application receiving device example IV.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the embodiment of the present application is clearly and completely described.Obviously, institute The embodiment of description is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, Those of ordinary skill in the art's all other embodiments obtained under the premise of not making the creative labor belong to this Shen The range that please be protect.

The network architecture and business scenario of the embodiment of the present application description are to more clearly illustrate that the application is implemented The technical solution of example, does not form the restriction for technical solution provided by the embodiments of the present application, those of ordinary skill in the art It is found that with the differentiation of the network architecture and the appearance of new business scene, technical solution provided by the embodiments of the present application is for similar The technical issues of, it is equally applicable.

Fig. 1 is the schematic diagram of circular buffer.

Please refer to Fig. 1, at present generate RV during, sending ending equipment be based on channel, as channel signal with interference and The channel quality instruction of noise ratio (Signal to Interference plus Noise Ratio, SINR), channel (Channel Quality Indicator, CQI), channel channel state information (Channel State Information, ) etc. CSI corresponding MCS is selected, generates the ratio that multiple length are identical, initial position is different in circular buffer according to MCS Special sequence, i.e., multiple RV, such as RV0, RV1, RV2 and RV3 in figure.When MCS differences, the length of the RV of generation is different.It sends End equipment selects Initial R V (RV0) from circular buffer and carries out first time transmission；If receiving device base after initial transmission In the part or all of of the incorrectly decoded data to be transmitted bits of RV0, then sending ending equipment continues to select from circular buffer RV2 carries out first time re-transmission；If receiving device still fails to be correctly decoded the portion of data to be transmitted bit after retransmitting for the first time Divide or all, then sending ending equipment continues to select RV1 from circular buffer, carry out second of re-transmission, since initial transmission, The order of preference of RV is RV0, RV2, RV1, RV3.The MCS used when transmission for the first time and follow-up transmission every time is based on initial The MCS that channel state information is selected.

However, when CQI measuring errors or delay factor cause the CQI reported expired, CQI and choosing during actual transmissions CQI based on when selecting MCS is not inconsistent, and causes to select unsuitable MCS.When MCS is relatively low, the code check of channel coding accordingly drops It is low, lead to the bit of redundancy versions in circular buffer to increase.And the length of multiple RV in circular buffer is identical, start bit Difference is put, therefore the bit number of each RV is higher, i.e., the length of each RV is bigger than normal.IR HARQ mechanisms are non-adaptive HARQs Mechanism, under the mechanism, when initial transmission fails, the length of the RV retransmitted every time is fixed, cause initial transmission and after Continuous each retransmit can all occupy more resource, cause the wasting of resources.

As a result, in the following evolution of LTE system and other future communication systems, such as the 5th generation (the 5th Generation, 5G) communication system, in the standardisation process of NR etc. of newly eating dishes without rice or wine, asked for the wasting of resources in IR HARQ mechanisms Topic is improved, and is important research direction.The embodiment of the present application provides a kind of redundancy versions transmission method and equipment, transmitting terminal Equipment generates redundancy versions according to the instruction information of receiving device, is achieved in flexibly generating redundancy versions, avoids resource unrestrained Take.

The techniques described herein may be used in the various communication systems there are multiple types terminal, such as global mobile communication System (Global System for Mobile communications, GSM), CDMA (Code Division Multiple Access, CDMA) system, time division multiple acess (Time Division Multiple Access, TDMA) system is wide Band CDMA (Wideband Code Division Multiple Access Wireless, WCDMA), frequency division multiple access (Frequency Division Multiple Addressing, FDMA) system, Orthogonal Frequency Division Multiple Access (Orthogonal Frequency-Division Multiple Access, OFDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS) system, long term evolution (Long Term Evolution, LTE) system, the general land of evolution It wireless access (Evolved-Universal Terrestrial Radio Access, E-UTRA) system and subsequent drills Into system, such as 5G mobile communication system, NR systems and other such communication systems.

The system architecture schematic diagram that Fig. 2 is applicable in by the application redundancy versions generation method.

With reference to Fig. 2, in this system framework, at least there are a sending ending equipment and at least one receiving device, connect Communication connection is established between receiving end equipment and sending ending equipment, sending ending equipment and receiving device are opposite.For example, will When base station is as sending ending equipment, receiving device is user equipment；For another example, it will be sent using base station as during receiving device End equipment is user equipment；For another example, in device-to-device (Device-to-Device, D2D) communication, sending ending equipment is with connecing Receiving end equipment is user equipment.

Wherein, base station can be the base transceiver station (Base Transceiver Station, BTS) in GSM or CDMA, Can also be the base station (NodeB) in WCDMA, can also be in LTE evolved base station (evolutional Node B, ENB) or 5G base stations, the application do not limit.

User equipment, can be catv terminal or wireless terminal, which can refer to provide a user The equipment of voice and/or data connectivity has the portable equipment of wireless connecting function or is connected to radio modem Other processing equipments.Wireless terminal can communicate through wireless access network with one or more core nets, and wireless terminal can To be mobile terminal, such as mobile phone (or for " honeycomb " phone) and the computer with mobile terminal, for example, it may be just Take formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchanged with wireless access network language and/ Or data.For another example, personal communication service (Personal Communication Service, PCS) phone, wireless phone, nothing Line local loop (Wireless Local Loop, WLL) is stood, personal digital assistant (Personal Digital Assistant, PDA) etc. equipment.Wireless terminal is referred to as system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device) or user equipment (User Equipment) etc..

Fig. 3 is a kind of signaling diagram of redundancy versions generation method provided by the embodiments of the present application, this example includes：

101st, sending ending equipment sends the first redundancy versions RV to receiving device.

Specifically, sending ending equipment is based on after data bit to be transmitted generates the first RV, the is sent to receiving device One RV.For example, when transmitting for the first time, sending ending equipment sends initial redundancy version to receiving device, i.e. RV0, at this time the first RV For RV0；When retransmitting for the first time, sending ending equipment sends the first RV retransmitted to receiving device, and the first RV is for the first time at this time The RV of re-transmission；Second when retransmitting, and sending ending equipment sends second of RV retransmitted to receiving device, and the first RV is the at this time The RV of secondary re-transmission.Correspondingly, receiving device receives the first RV.

If the 102nd, part of the receiving device based on the incorrectly decoded data to be transmitted bits of the first RV Or all, then feedback information is sent to the sending ending equipment.

In the embodiment of the present application, the first RV and the 2nd RV are all based on data to be transmitted generation.Assuming that data to be transmitted Bit is 100 bits, is handled by channel coding as 300 bits, then the first RV and the 2nd RV both is from 300 bit, second The effect of RV is to aid in the initial data that receiving device more accurately decodes original data to be transmitted, i.e. 100 bits.

Optionally, receiving device judges whether to be correctly decoded data bit to be transmitted after the first RV is received Partly or entirely, if being correctly decoded the part or all of of data bit to be transmitted, affirmative acknowledgement is sent to sending ending equipment (Acknowledgement, ACK).

Alternatively, if the incorrectly decoded data bit to be transmitted of receiving device is part or all of, set to transmitting terminal Preparation send feedback information, and feedback information includes negative response (Negative ACKnowledgment, NACK) information, alternatively, instead Feedforward information includes nack message and instruction information, and the feedback information is used to indicate the length of the 2nd RV or the start bit of the 2nd RV It at least one of puts, optionally, i.e., described nack message or the instruction information are used to indicate the length or the of the 2nd RV The initial position of two RV.

Feedback information for the instruction initial position of the 2nd RV either explicitly or implicitly, the 2nd RV length etc. in It is at least one.By taking the length that feedback information indicates the 2nd RV as an example, during explicit instruction, receiving device is being sent to transmitting terminal The value of the length of the 2nd RV is carried in the feedback information of equipment；During implicit instruction, receiving device is indirectly by the length of the 2nd RV Degree is indicated to sending ending equipment.For example, receiving device safeguards a corresponding table with sending ending equipment, included in corresponding table The correspondence of the length of NACK and the length of the 2nd RV, when NACK is 2 bit, the length for representing the 2nd RV is 1000 ratios Spy, when NACK is 3 bit, the length for representing the 2nd RV is 2000 bits.Therefore, if receiving device is sent out to sending ending equipment Send the NACK of 2 bits, then it represents that the length of the 2nd RV is 1000 bits.

103rd, the sending ending equipment sends the 2nd RV according to the feedback information.

Sending ending equipment receive receiving terminal it is incorrectly decoded when send feedback information when, generated according to feedback information 2nd RV is simultaneously transmitted.For example, if feedback information indicates initial position and the length of the 2nd RV, sending ending equipment is according to feedback letter The initial position of determining 2nd RV of breath and length and then the 2nd RV of generation；For another example, if feedback information indicates the start bit of the 2nd RV It puts, and the length of the 2nd RV is a preset value, at this point, sending ending equipment determines the start bit of the 2nd RV according to feedback information It puts, and the length of the 2nd RV is determined according to preset value, and then generate the 2nd RV；For another example, if feedback information only indicates the 2nd RV's Length, and the initial position of the 2nd RV is a predeterminated position, at this point, sending ending equipment determines the 2nd RV's according to feedback information Length, and the 2nd RV is generated according to fixed position and length.

RV generation methods provided by the embodiments of the present application, sending ending equipment are based on data bit to be transmitted and generate the first RV And sent to receiving device, if receiving device fails to be correctly decoded the part of data to be transmitted bit or complete based on the first RV Portion, receiving device send feedback information to sending ending equipment, and sending ending equipment generates the 2nd RV according to the feedback information.The mistake Cheng Zhong, after retransmitting every time, if part or all of, the sending ending equipment of the incorrectly decoded data to be transmitted bit of receiving device The initial position of the transmission of feedback information RV, the RV that are sent according to receiving device and length can adaptively be adjusted according to feedback information It is whole, avoid the wasting of resources caused by sending the RV of regular length.

Optionally, in above-described embodiment, the 2nd RV is generated based on the data bit to be transmitted.

Optionally, in above-described embodiment, the first RV and the 2nd RV are passed twice for the sending ending equipment is adjacent The RV successively transmitted during defeated RV, the first RV is the RV formerly transmitted, and the 2nd RV is the RV in rear transmission.It sends End equipment after the first RV is transmitted, if receiving device based on the first RV fail to be correctly decoded data to be transmitted bit part or All, then the transmission of the 2nd RV is carried out.

In the following, to receiving device how by feedback information indicate the 2nd RV initial position and receiving device How to be illustrated respectively by the length of the 2nd RV of feedback information instruction.

Receiving device indicates the initial position of the 2nd RV by feedback information, specifically includes：

In one example, the feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates institute The relationship of the initial position of the 2nd RV and the final position of the first RV is stated, the sending ending equipment is according to the feedback information The 2nd RV is sent, including：The sending ending equipment determines the initial position of the 2nd RV according to the relationship, and according to The initial position sends the 2nd RV.

For RV (RV0), the 2nd RV by the first RV for initial transmission are the RV retransmitted for the first time, during initial transmission, hair Sending end equipment is based on initial channel status information selection MCS and generates RV0.Assuming that rope is selected based on initial channel status information The MCS of n is cited as, is expressed as MCS (n), then Initial R V (RV0) is obtained according to MCS (n), RV0 is the first RV.After transmitting RV0, if Receiving device is part or all of based on the incorrectly decoded data to be transmitted bits of RV0, then sends and feed back to sending ending equipment Information, to indicate the relationship of the initial position of the 2nd RV and the final position of the first RV.Sending ending equipment is according to the relationship The initial position of the RV retransmitted for the first time is determined, for example, the start bit of RV that the final position of RV0 is retransmitted as first time It puts；For another example, the final position of RV0 is deviated by a value according to offset (offset) value, using the final position after offset as the The initial position of the RV once retransmitted.Wherein, deviant is preset value or is indicated by receiving device.

In another example, the feedback information indicates that the initial position of the 2nd RV includes：The feedback information instruction Predeterminated position, the sending ending equipment generate the 2nd RV according to the feedback information, including：The sending ending equipment according to The predeterminated position determines the initial position of the 2nd RV, and generates the 2nd RV according to the initial position.

Specifically, predeterminated position carrying is sent to sending ending equipment by receiving device in feedback information, the default position It puts as the initial position of the 2nd RV.Specifically, can receiving device set a location sets, receiving device from this A predeterminated position is chosen, and the predeterminated position is carried and is sent out in feedback information at random or according to a graded in location sets Give sending ending equipment.

In the above method, receiving terminal sets the initial position of the 2nd RV of instruction to transmitting terminal, avoids every time according to predeterminated position The length of the RV of re-transmission is fixed.

Receiving device indicates the length of the 2nd RV by feedback information, specifically includes：

In one example, the feedback information indicates that the length of the 2nd RV includes：The feedback information indicates institute State the difference of the index and the index of the 2nd MCS of the first MCS, the sending ending equipment sends described the according to the feedback information Two RV include：The sending ending equipment is according to the index and described second of the first MCS；Wherein, first index is the One modulation and the index of coding mode MCS, index of second index for the 2nd MCS, the first MCS is the transmitting terminal Equipment sends the MCS that the first RV is selected, and the 2nd MCS receiving devices are to determine that the 2nd RV is selected MCS。。

For example, the index of the first MCS is 28, it is expressed as MCS (28), the index of the first MCS of feedback information instruction and the The difference of the index of two MCS is 1, then the index of the 2nd MCS is 27, MCS (27) is expressed as, if the length of the corresponding RV of MCS (28) It spends for 8000bit, the length of the corresponding RV of MCS (27) is 8500 bits, and the length of the 2nd RV is 8500-8000=500bit.

For another example, it is assumed that the index of the first MCS is 30, is expressed as MCS (30), feedback information indicate the index of the first MCS with The difference of the index of 2nd MCS is 2, then the index of the 2nd MCS is 28, is expressed as MCS (28), if the corresponding RV of MCS (30) Length is 5400bit, and the length of the corresponding RV of MCS (28) is 8000 bits, then the length of the 2nd RV is 8000-5400= 2600bit.In this example, directly using the difference of MCS (28) and the length of the corresponding RV versions of MCS (30) as the length of the 2nd RV Degree.However, the embodiment of the present application is not limited thereto system, in other feasible realization methods, when the first index and the second rope When the difference drawn is more than 1, the difference of the length of the corresponding RV of the adjacent index of each two can also be first determined, then each difference is asked With, using each difference and length as the 2nd RV.Continuing to continue to use above example, the first index is 30, and the second index is 28, Adjacent index includes：MCS (28) and MCS (29) and MCS (29) and MCS (30).Assuming that the corresponding modulation systems of MCS (28) For 64 phase quadrature amplitude modulations (64Quadrature Amplitude Modulation, 64QAM), the corresponding code checks of MCS (28) It is 64QAM for the corresponding modulation systems of 0.75, MCS (29), code check 0.8, when transmission block (Transport Block, TB) When size is 6000bit, the length that the length of the corresponding RV of MCS (28) is the corresponding RV of 6000/0.75, MCS (29) is 6000/ 0.8, then the difference of the length of the corresponding RV of MCS (28) RVs corresponding with MCS (29) for (6000/0.75)-(6000/0.8)= 8000-7500=500bit.If the corresponding code checks of MCS (30) are also right for the corresponding RV length of 0.8, MCS (29) and MCS (30) The difference of the length of the RV answered is also 500bit, then the length of the 2nd RV is 500+500=1000 bits.However, if MCS (30) is right The code check answered be 0.9, then the difference of the length of the corresponding RV length of MCS (29) RV corresponding with MCS (30) be (6000/0.8)- (6000/0.9) length of=7500-5400=2100bit, the 2nd RV are 500+2100=2600bit.

In another example, the feedback information indicates that the length of the 2nd RV includes：The feedback information instruction is default Value, the sending ending equipment generate the 2nd RV according to the feedback information, including：The sending ending equipment is according to described pre- If value determines the length of the 2nd RV, and generates the 2nd RV according to the length.Wherein, the preset value can be according to first It passes RV length or the first RV length obtains.Receiving device is previously according to first biography RV length generation preset value and preserves, alternatively, often It is secondary receive the first RV after, generated and preset value and preserved according to the length of the first RV.

In the above method, receiving device sets instruction preset value to transmitting terminal so that sending ending equipment makees the preset value For the length of the 2nd RV, the preset value of each retransmit is different, then the length of the 2nd RV is different, avoids the RV's retransmitted every time Length is fixed.

In yet another example, the feedback information indicates that the length of the 2nd RV includes：The feedback information instruction The difference of the index and the index of the 2nd CQI of first CQI, the sending ending equipment is according to being sent the feedback information 2nd RV includes：The sending ending equipment determines institute according to the difference of the index and the index of the 2nd CQI of the first CQI The length of the 2nd RV is stated, the 2nd RV is sent according to the length.Wherein, the first MCS is sent out for the sending ending equipment The MCS selected during a RV, the first MCS is sent to be determined based on the first CQI, the 2nd MCS is the transmission End equipment sends the MCS selected during two RV, and the 2nd MCS is determined based on the 2nd CQI.

Specifically, in downlink transfer, sending ending equipment is base station, receiving device is user equipment, user equipment to report Channel quality indicates (Channel Quality Indicator, CQI), and base station determines MCS according to the CQI and is transmitted；On In row transmission, sending ending equipment is user equipment, receiving device is base station, and UE selects MCS according to CQI.The embodiment of the present application In, which is improved.After improvement, in downlink transmission process, base station is based on the first CQI and selects the first MCS, and then First RV, part or complete of the user equipment based on the incorrectly decoded data to be transmitted bits of the first RV are selected based on the first MCS Portion is measured out present channel the 2nd CQI, and compares the first CQI and the 2nd CQI, by the first CQI and the 2nd CQI Difference base station is reported to by feedback information, the difference that base station is carried according to feedback information determines the 2nd MCS and first The length of the corresponding RV of MCS, the length of the corresponding RV of the 2nd MCS, and according to the length and the 2nd MCS of the corresponding RV of the first MCS The difference of the length of corresponding RV determines the length of the 2nd RV.

Optionally, based on MCS, either CQI determines that the operation of RV is also based on SINR or CSI is determined with reference to above-mentioned RV, the embodiment of the present application are not intended to limit this.

In this method, by dynamic generation RV, flexibly change RV granularities, when avoiding CQI during actual transmissions with selecting MCS Based on CQI be not inconsistent caused by the wasting of resources.

It should be noted that in above-described embodiment, receiving device can explicitly or implicitly pass through feedback information instruction the The initial position of two RV.During explicit instruction, receiving device is directly by feedback information to sending ending equipment instruction the The initial position of two RV and/or length；During implicit instruction, receiving device is indirectly set by feedback information to transmitting terminal The initial position of the 2nd RV of standby instruction and/or length.Using feedback information as negative response (Negative ACKnowledgment, NACK) for information, it is assumed that NACK shares K kinds, and K kind nack messages are divided at least two groups, such as first group, second group and other Group, first group includes M kinds NACK, and second group includes N kinds ANCK.During implicit instruction initial position, the NACK instructions in first group 2nd RV initial positions are related to the first RV final positions, and correlation refers to the initial position of the 2nd RV and the final position of the first RV Between there are certain relationship, the initial position of such as the first RV is exactly the final position of the 2nd RV, alternatively, the stop bit of the first RV The initial position of the 2nd RV is obtained after putting offset, the NACK kinds instruction predeterminated position in second group, predeterminated position and the first RV's Identical or different K >=the M+N of final position of any relationship, predeterminated position and the first RV is not present between final position.If it receives End equipment sends any one NACK in first group of NACK, then it represents that the 2nd RV initial positions and the first RV final position phases It closes, it, will be pre- after sending ending equipment receives the NACK if receiving device sends any one NACK in second group of NACK If initial position of the position as the 2nd RV.For another example, during implicit instruction length, when feedback information occupies 4 bits, the is represented The length of two RV is a preset value；When feedback information occupies 5 bit, the length for representing the 2nd RV is the length of the first RV Half.

Although it should also be noted that, above initial position or the feedback letter for only indicating the 2nd RV from feedback information respectively The angle of the breath only length of the 2nd RV of instruction is described.However, present application example is not limited thereto system, in other embodiment In, feedback information can also indicate the initial position of the 2nd RV and the length of the 2nd RV simultaneously.

In the following, above-mentioned RV generation methods are described in detail with a specific example.Specifically, reference can be made to Fig. 4, Fig. 4 is the schematic diagram of circular buffer in the application another RV generation method.

During initial transmission, MCS that sending ending equipment is selected based on initial channel status information, and generated according to the MCS RV0.For example it is assumed that being the MCS that index is n based on the MCS that initial channel status information is selected, MCS (n) is expressed as, according to The generation method of existing RV determines initial position and the final position of RV0, so as to generate RV0, such as circle fill part in figure It is shown.

After transmitting RV0, if receiving device based on the part or all of of the incorrectly decoded data to be transmitted bits of RV0, Feedback information is sent to sending ending equipment.Specifically, reference can be made to table 1, table 1 are one of feedback information in the application RV generation methods A design table.

Table 1

Table 1 is please referred to, when feedback information is 00, represents that sending ending equipment has correctly received.

When feedback information is 01, the initial position for representing the 2nd RV is the final position of the first RV, through measuring what is obtained The index of MCS is 1 with the difference of the index of MCS initially selected, i.e., is MCS (n-1) through measuring obtained MCS.

When feedback information is 10, the initial position for representing the 2nd RV is the final position of the first RV, through measuring what is obtained The index of MCS is 2 with the difference of the index of MCS initially selected, i.e., is MCS (n-2) through measuring obtained MCS.

When feedback information is 11, the 2nd RV of expression is RV0.

According to table 1, by taking feedback information is 10 as an example, the first MCS is MCS (n), and the 2nd MCS is MCS (n-2), and the 2nd RV is The length of the RV retransmitted for the first time, the 2nd RV are the difference of the length length corresponding with MCS (n) of the corresponding RV of MCS (n-2), It is expressed as Z；If alternatively, the difference (being expressed as X) of the length of the length of the corresponding RV of MCS (n-2) RV corresponding with MCS (n-1), The difference (being expressed as Y) of the length of the length RV corresponding with MCS (n) of the corresponding RV of MCS (n-1), then the length of the 2nd RV is X +Y；Alternatively, it is T that the 2nd RV, which is length, T=X+Y+C, C for a constant or with MCS (n) and MCS (n-2) relevant variable.Its In, X is identical or different with Y, and Z is identical or different with X+Y.2nd RV is as shown in the part that figure medium square is filled.

It should be noted that above-mentioned table 1 is only a citing for defining feedback information, the specific definition side of feedback information Formula can include many kinds, such as table 2 below and table 3, wherein, table 2 is the another of feedback information in the application RV generation methods A design table, table 3 are another design table of feedback information in the application RV generation methods.

Table 2

Please refer to table 2, the first CQI be MCS (n) when feedback information is 00, represent that sending ending equipment has correctly received.

When feedback information is 01, the initial position for representing the 2nd RV is the final position of the first RV, through measuring what is obtained The difference of the CQI of CQI and initial channel is 1, i.e., is CQI (n-1) through measuring obtained CQI.

When feedback information is 10, the initial position for representing the 2nd RV is the final position of the first RV, through measuring what is obtained The index of CQI is 2 with the difference of the index of CQI initially selected, i.e., is CQI (n-2) through measuring obtained CQI.

When feedback information is 11, the 2nd RV of expression is RV0.

According to table 1, by taking feedback information is 10 as an example, the first CQI is CQI (n), and the 2nd CQI is CQI (n-2), and the 2nd RV is The RV retransmitted for the first time is the first MCS according to the MCS that CQI (n) is selected, and is second according to the MCS that CQI (n-2) is selected MCS, then the length of the 2nd RV is the difference of the length length corresponding with the 2nd MCS of the corresponding RV of the first MCS, is expressed as Z；Or Person is the first MCS according to the MCS that CQI (n) is selected, is the 2nd MCS according to the MCS that CQI (n-2) is selected, according to CQI (n- 1) MCS selected is the 3rd MCS, and the difference of the length of the length RV corresponding with the 2nd MCS of the corresponding RV of the 3rd MCS is X, The difference of the length of the length RV corresponding with the first MCS of the corresponding RV of 2nd MCS is Y, then the length of the 2nd RV is X+ ... Y； Alternatively, it is T that the 2nd RV, which is length, T=X+Y+C, C for a constant or with CQI (n) and CQI (n-2) relevant variable.Wherein, X is identical or different with Y, and Z is identical or different with X+Y.

Table 3

Length information (2bits)	Corresponding meaning
		00	MCS(n-1)-MCS(n)
01	MCS(n-2)-MCS(n)
		10	MCS(n-3)-MCS(n)
11	Reserved bit

Please refer to table 3, it is assumed that initial transmission is that selected MCS is MCS (n), when feedback information is 00, is represented through measuring The index of obtained MCS is 1 with the difference of the index of MCS initially selected, i.e. the first MCS is MCS (n), and the 2nd MCS is MCS (n-1)；When length information is 01, represent that the difference through measuring the index of obtained MCS and the index of initially selected MCS is 2, That is the first MCS is MCS (n), and the 2nd MCS is MCS (n-2)；When length information is 10, represent through measuring the obtained index of MCS The difference of the index of MCS with initially selecting is 3, i.e. the first MCS is MCS (n), and the 2nd MCS is MCS (n-3)；Length information is When 11, temporarily as reserved bit.

If just passing, after re-transmission for the first time, receiving terminal is not properly received the RV retransmitted for the first time, needs to carry out second of re-transmission When, it is assumed that through measuring the obtained index of MCS as n-3, which is expressed as MCS (n-3), length information 00, due to for the first time It is MCS (n-2) to retransmit the MCS selected, at this point, the first MCS is MCS (n-2), the 2nd MCS is MCS (n-3), then second of weight Difference of the length of the RV of biography for the length of MCS (n-3) and the corresponding RV of MCS (n-2).In second of RV such as figure retransmitted Shown in the part of tri filling.

In the above method, when the index for the MCS that sending ending equipment is obtained according to receiving device measurement is with last transmit The difference of the index of the MCS selected determines the length of this RV retransmitted.The MCS obtained due to receiving device measurement with Current channel state information is consistent, and the RV of sending ending equipment regular length is avoided to cause the wasting of resources.

In addition, sending ending equipment is upon reception of the feedback information, the 2nd MCS can also be determined according to feedback information, it should 2nd MCS is the MCS that receiving device measures channel.When retransmitting every time, sending ending equipment is according to determining The 2nd MCS, select corresponding order of modulation and transport block size etc., according to this re-transmission RV initial position and length, Carry out this re-transmission.Should during, receiving device will only be selected when measuring the obtained index and initial transmission of MCS The difference of the index of MCS is sent to sending ending equipment so that sending ending equipment determines the 2nd MCS according to difference, which accounts for Channel resource is much smaller than the channel resource that complete 2nd MCS is occupied, therefore saves channel resource to a certain extent.

In addition, in above-described embodiment, sending ending equipment can not also generate the 2nd RV according to feedback information, but voluntarily determine Surely the 2nd RV is generated, i.e., voluntarily generates the 2nd RV after the initial position of determining 2nd RV and length.In this case, transmitting terminal is set Standby the 2nd RV for needing voluntarily to generate to receiving device notice.Specifically, sending ending equipment receives receiving device transmission Feedback information after, the 2nd RV of generation is measured to channel, what the 2nd RV and sending ending equipment were generated according to feedback information 2nd RV is different, then, the 2nd RV that sending ending equipment is generated to receiving device transmission according to channel measurement, and to receiving terminal Equipment send instruction information, with indicate sending ending equipment send the 2nd RV be generated based on channel measurement rather than according to Feedback information generation.For example, the feedback information that receiving device receives indicates that the initial position of the 2nd RV is the end of the first RV Stop bit is put, and the length of the 2nd RV is the half of the length of the first RV, and sending ending equipment measures channel discovery：2nd RV Should be RV0, i.e., the initial position of the 2nd RV is the initial position of RV0, and the length of the 2nd RV is the length of RV0, at this point, sending End equipment sends instruction information to receiving device, and the 2nd RV of instruction is RV0, and transmits the 2nd RV to receiving device, i.e., RV0。

In addition, in above-described embodiment, sending ending equipment is after the 2nd RV is generated, the length that is same as version also according to second, After at least one of punching or rate-matched operation the 2nd RV is sent to receiving device.Such as when needed for the 2nd RV Resource be more than distribute to sending ending equipment transmission resource when, the 2nd RV can be punched or rate-matched at least one It is retransmited after a operation.

Fig. 5 is the structure diagram of the application sending ending equipment embodiment one.Sending ending equipment provided in this embodiment, can To realize that the application is applied to each step of the method for sending ending equipment, details are not described herein for specific implementation process.Specifically, Sending ending equipment 100 provided in this embodiment includes：

Sending module 11 is based on to be transmitted for sending the first redundancy versions RV, the first RV to receiving device Data bit generation；

Receiving module 12, if being based on the incorrectly decoded data to be transmitted of the first RV for the receiving device Bit it is part or all of, then receive the feedback information that the receiving device is sent, the feedback information is used to indicate second The initial position of RV, at least one of the length of the 2nd RV；

The sending module 11 is additionally operable to send the 2nd RV according to the feedback information.

The sending ending equipment that present application example provides generates the first RV based on data bit to be transmitted and is set to receiving terminal Preparation is sent, if receiving device fails to be correctly decoded the part or all of of data to be transmitted bit based on the first RV, receiving terminal is set Preparation send feedback information, and to sending ending equipment, sending ending equipment generates the 2nd RV according to the feedback information.It is heavy every time during being somebody's turn to do After biography, if the incorrectly decoded data to be transmitted bit of receiving device is part or all of, sending ending equipment is according to receiving terminal The initial position of transmission of feedback information RV, the RV that equipment is sent and length can adaptively be adjusted according to feedback information, avoid sending out The wasting of resources caused by sending the RV of regular length.

Optionally, in one embodiment of the application, the 2nd RV is generated based on the data bit to be transmitted.

Fig. 5 is please referred to again, and optionally, in one embodiment of the application, above-mentioned sending ending equipment further includes：Processing module 13, the feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates the initial position of the 2nd RV With the relationship of the final position of the first RV；

The processing module 13, for determining the initial position of the 2nd RV according to the relationship；

The sending module 11, specifically for sending the 2nd RV according to the initial position.

Optionally, in one embodiment of the application, the processing module 13 is additionally operable to select when sending a RV One modulation and coding mode MCS, the feedback information indicate that the initial position of the 2nd RV includes：Described in the feedback information instruction The difference of the index and the index of the 2nd MCS of first MCS；

The processing module 13 is additionally operable to true with the difference of the index of the 2nd MCS according to indexing for the first MCS The length of fixed 2nd RV；

The sending module 11 is additionally operable to send the 2nd RV according to the length.

Optionally, in one embodiment of the application, the processing module 13 is additionally operable to select when sending a RV One MCS, the first MCS determine that the feedback information indicates that the initial position of the 2nd RV includes based on the first CQI：Institute State the difference that feedback information indicates the index and the index of the 2nd CQI of the first CQI；

The processing module 13 is additionally operable to true with the difference of the index of the 2nd CQI according to indexing for the first CQI The length of fixed 2nd RV；

Fig. 6 is the structure diagram of the application receiving device embodiment one.Receiving device provided in this embodiment, can To realize that the application is applied to each step of the method for receiving device, details are not described herein for specific implementation process.Specifically, Receiving device 200 provided in this embodiment includes：

Receiving module 21, for receiving the first redundancy versions RV of sending ending equipment transmission, the first RV is the hair Sending end equipment is generated based on data bit to be transmitted；

Sending module 22, if being based on the incorrectly decoded numbers to be transmitted of the first RV for the receiving device According to the part or all of of bit, then feedback information is sent, the feedback information is used to indicate the initial position of the 2nd RV, described At least one of length of two RV.

Receiving device provided by the embodiments of the present application, receives the first RV that sending ending equipment is sent, and the first RV is hair Sending end equipment is generated based on data bit to be transmitted, if receiving device fails to be correctly decoded number to be transmitted based on the first RV According to the part or all of of bit, receiving device sends feedback information to sending ending equipment, and sending ending equipment is according to the feedback letter The 2nd RV of breath generation.Should during, every time retransmit after, if the part of the incorrectly decoded data to be transmitted bit of receiving device or All, then the initial position of transmission of feedback information RV, the RV that sending ending equipment is sent according to receiving device and length can roots It is adaptively adjusted according to feedback information, avoids the wasting of resources caused by sending the RV of regular length

Optionally, in one embodiment of the application, the feedback information indicates that the initial position of the 2nd RV includes：It is described anti- Feedforward information indicates the relationship of the initial position of the 2nd RV and the final position of the first RV.

Fig. 6 is please referred to again, and optionally, in one embodiment of the application, the receiving device further includes：Processing module 23, the MCS that first modulation is selected when sending a RV for the sending ending equipment with coding mode MCS, the processing mould Block 23, for selecting the 2nd MCS；

The sending module 22, for sending the feedback information, the feedback information indicates the initial position of the 2nd RV Including：The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS.

Optionally, in one embodiment of the application, the receiving device further includes：Processing module 23, described first adjusts The MCS that system is selected when sending a RV for the sending ending equipment with coding mode MCS, the processing module 23, for determining 2nd CQI；

The sending module 22, for sending feedback information, the feedback information indicates that the initial position of the 2nd RV includes： The feedback information indicates the difference of the index and the index of the 2nd CQI of the first CQI.

Fig. 7 is the structure diagram of the application sending ending equipment embodiment two, and transmitting terminal provided by the embodiments of the present application is set Standby 300 include：Processor 31, memory 32, communication interface 33 and system bus 34, the memory 32 and the communication interface 33 are connect with the processor 31 by the system bus 34 and complete mutual communication, and the memory 32 is used to store Computer executed instructions, the communication interface 33 is used for and other equipment communicates, and the processor 31 is described for running Computer executed instructions make the sending ending equipment perform each step for being as above applied to sending ending equipment.

Fig. 8 is the structure diagram of the application receiving device embodiment two, and receiving terminal provided by the embodiments of the present application is set Standby 400 include：Processor 41, memory 42, communication interface 43 and system bus 44, the memory 42 and the communication interface 43 are connect with the processor 41 by the system bus 44 and complete mutual communication, and the memory 42 is used to store Computer executed instructions, the communication interface 43 is used for and other equipment communicates, and the processor 41 is described for running Computer executed instructions make the receiving device perform each step for being as above applied to receiving device.

Fig. 9 is the structure diagram of the application sending ending equipment embodiment three, and transmitting terminal provided by the embodiments of the present application is set Standby 500 include：Transceiver 51 and processor 52, the transceiver 51 are used to send the first redundancy versions RV to receiving device, First RV is generated based on data bit to be transmitted；If the receiving device is not solved correctly based on the first RV The code data to be transmitted bit it is part or all of, then the transceiver 51 is additionally operable to receive what the receiving device was sent Feedback information, the feedback information be used to indicate the initial position of the 2nd RV, the 2nd RV at least one of length；Institute It states transceiver 51 and is additionally operable to send the 2nd RV to the receiving device.

Figure 10 is the structure diagram of the application sending ending equipment example IV, and transmitting terminal provided by the embodiments of the present application is set Standby 600 include：Transceiver 61 and processor 62, the transceiver 61, for receiving the first redundancy version from sending ending equipment This RV, the first RV are that the sending ending equipment is generated based on data bit to be transmitted；If the receiving device base In the part or all of of the incorrectly decoded data bits to be transmitted of the first RV, the transceiver 61 is used for described Sending ending equipment send feedback information, the feedback information be used to indicate the initial position of the 2nd RV, the 2nd RV length At least one of.

Figure 11 is the structure diagram of the application sending ending equipment example IV, and transmitting terminal provided by the embodiments of the present application is set Standby 700 include：Memory 71 and processor 72, for storing program instruction, processor 72 is used to call memory memory 71 Program instruction in 71 realizes the function of sending ending equipment described in above-mentioned each method embodiment.

Figure 12 is the structure diagram of the application receiving device example IV, and receiving terminal provided by the embodiments of the present application is set Standby 800 include：Memory 81 and processor 82, for storing program instruction, processor 82 is used to call memory memory 81 Program instruction in 81 realizes the function of receiving device described in above-mentioned each method embodiment.

Term " first ", " second ", " third " in the description and claims of this application and above-mentioned attached drawing, " The (if present)s such as four " are the objects for distinguishing similar, and specific sequence or precedence are described without being used for.It should manage The data that solution uses in this way can be interchanged in the appropriate case, so as to embodiments herein described herein, can in addition to Sequence other than those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and their any change Shape, it is intended that cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product Or equipment is not necessarily limited to those steps clearly listed or unit, but may include not listing clearly or for these The intrinsic other steps of process, method, product or equipment or unit.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to The relevant hardware of program instruction is crossed to complete.Aforementioned program can be stored in a computer read/write memory medium.The journey Sequence when being executed, performs the step of including above-mentioned each method embodiment；And aforementioned storage medium includes：ROM, RAM, magnetic disc or The various media that can store program code such as person's CD.

Claims

1. a kind of redundancy versions transmission method, which is characterized in that including：

It is based on data bit to be transmitted that sending ending equipment sends the first redundancy versions RV, the first RV to receiving device Generation；

If the receiving device is part or all of based on the incorrectly decoded data to be transmitted bits of the first RV, The sending ending equipment receives the feedback information that the receiving device is sent, and the feedback information is used to indicate rising for the 2nd RV Beginning position, the 2nd RV at least one of length；

The sending ending equipment sends the 2nd RV according to the feedback information.

2. according to the method described in claim 1, it is characterized in that,

2nd RV is generated based on the data bit to be transmitted.

3. method according to claim 1 or 2, which is characterized in that

The feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates the initial position of the 2nd RV With the relationship of the final position of the first RV, the sending ending equipment sends the 2nd RV, packet according to the feedback information It includes：The sending ending equipment determines the initial position of the 2nd RV according to the relationship, and is sent according to the initial position 2nd RV.

4. according to claims 1 to 3 any one of them method, which is characterized in that the method further includes：

The sending ending equipment selectes the first modulation and coding mode MCS, the feedback information instruction when sending a RV The initial position of 2nd RV includes：The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS；

The sending ending equipment determines described second according to the difference of the index and the index of the 2nd MCS of the first MCS The length of RV sends the 2nd RV according to the length.

5. according to claims 1 to 3 any one of them method, which is characterized in that the method further includes：

The sending ending equipment selectes the first MCS when sending a RV, and the first MCS is determined based on the first CQI, The feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates the index and second of the first CQI The difference of the index of CQI；

The sending ending equipment determines described second according to the difference of the index and the index of the 2nd CQI of the first CQI The length of RV sends the 2nd RV according to the length.

6. a kind of RV transmission methods, which is characterized in that including：

It is the sending ending equipment base that receiving device, which receives the first redundancy versions RV, the first RV that sending ending equipment is sent, In data bit to be transmitted generation；

If the receiving device is part or all of based on the incorrectly decoded data bits to be transmitted of the first RV, Feedback information then is sent to the sending ending equipment, the feedback information is used to indicate the initial position of the 2nd RV, described second At least one of length of RV.

7. according to the method described in claim 6, it is characterized in that,

2nd RV is generated based on the data bit to be transmitted.

8. the method described according to claim 6 or 7, which is characterized in that

The feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates the initial position of the 2nd RV With the relationship of the final position of the first RV.

9. according to claim 6~8 any one of them method, which is characterized in that

The MCS that first modulation is selected when sending a RV for the sending ending equipment with coding mode MCS,

The receiving device selects the 2nd MCS, sends the feedback information, and the feedback information indicates the start bit of the 2nd RV Put including：The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS.

10. according to claim 6~8 any one of them method, which is characterized in that

The MCS that first modulation is selected when sending a RV for the sending ending equipment with coding mode MCS, described first MCS determined based on the first CQI,

The receiving device determines the 2nd CQI, sends feedback information, and the feedback information indicates the initial position packet of the 2nd RV It includes：The feedback information indicates the difference of the index and the index of the 2nd CQI of the first CQI.

11. a kind of sending ending equipment, which is characterized in that including：

Transceiver is based on data ratio to be transmitted for sending the first redundancy versions RV, the first RV to receiving device Spy's generation；

If the receiving device is part or all of based on the incorrectly decoded data to be transmitted bits of the first RV, The transceiver is additionally operable to receive the feedback information that the receiving device is sent, and the feedback information is used to indicate the 2nd RV's Initial position, at least one of the length of the 2nd RV；

12. equipment according to claim 11, which is characterized in that

2nd RV is generated based on the data bit to be transmitted.

13. the equipment according to claim 11 or 12, which is characterized in that further include：Processor, the feedback information instruction The initial position of 2nd RV includes：The feedback information indicates the initial position of the 2nd RV and the stop bit of the first RV The relationship put,

The transceiver is used to send the 2nd RV according to the initial position.

14. according to claim 11~13 any one of them equipment, it is characterised in that：

The processor determines to select the first modulation and coding mode MCS during a RV, the feedback information instruction second The initial position of RV includes：The feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS；

The processor is used to determine described second according to the difference of the index and the index of the 2nd MCS of the first MCS The length of RV；

The transceiver is used to send the 2nd RV according to the length.

15. according to claim 11~13 any one of them equipment, which is characterized in that

The processor is used to select the first MCS when the transceiver sends a RV, and the first MCS is based on the What one CQI was determined, the feedback information indicates that the initial position of the 2nd RV includes：The feedback information indicates the first CQI Index and the index of the 2nd CQI difference；

The processor is used to determine described second according to the difference of the index and the index of the 2nd CQI of the first CQI The length of RV；

The transceiver is used to send the 2nd RV according to the length.

16. a kind of receiving device, which is characterized in that including transceiver：

The transceiver, for receiving the first redundancy versions RV from sending ending equipment, the first RV is the transmitting terminal Equipment is generated based on data bit to be transmitted；

If the receiving device is part or all of based on the incorrectly decoded data bits to be transmitted of the first RV, The transceiver is used to send feedback information to the sending ending equipment, and the feedback information is used to indicate the start bit of the 2nd RV It puts, at least one of the length of the 2nd RV.

17. equipment according to claim 16, which is characterized in that

2nd RV is generated based on the data bit to be transmitted.

18. equipment according to claim 16 or 17, which is characterized in that

19. according to claim 16~18 any one of them equipment, which is characterized in that further include：Processor, described first adjusts The MCS that system is selected when sending a RV for the sending ending equipment with coding mode MCS,

The processor is for the 2nd MCS of selection；

For the transceiver for sending the feedback information, the feedback information indicates that the initial position of the 2nd RV includes：It is described Feedback information indicates the difference of the index and the index of the 2nd MCS of the first MCS.

20. according to claim 16~18 any one of them equipment, which is characterized in that the receiving device further includes processing Device, the MCS, the first MCS that first modulation is selected when sending a RV for the sending ending equipment with coding mode MCS It is determined based on the first CQI,

The processor is used to determine the 2nd CQI；

For the transceiver for sending the feedback information, the feedback information indicates that the initial position of the 2nd RV includes：It is described Feedback information is used to indicate the difference of the index and the index of the 2nd CQI of the first CQI.