CN109474382A - A kind of data transmission method, base station and terminal - Google Patents

A kind of data transmission method, base station and terminal Download PDF

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Publication number
CN109474382A
CN109474382A CN201710808037.0A CN201710808037A CN109474382A CN 109474382 A CN109474382 A CN 109474382A CN 201710808037 A CN201710808037 A CN 201710808037A CN 109474382 A CN109474382 A CN 109474382A
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China
Prior art keywords
control signaling
scheduling
passes
terminal
redundancy versions
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CN201710808037.0A
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Chinese (zh)
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CN109474382B (en
Inventor
王加庆
郑方政
孙韶辉
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201710808037.0A priority Critical patent/CN109474382B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of data transmission method, base station and terminals, are related to the communications field, and solving the problems, such as that terminal can not be known to will lead to when just passing code rate in the prior art can not determine that code block segmentation length or HARQ cannot achieve.This method comprises: sending the control signaling that instruction just passes code rate to terminal；If detecting the control signaling transmission failure, continue to send the control signaling that instruction just passes code rate to the terminal.The solution of the present invention ensures that terminal can be successfully received the control signaling that instruction just passes code rate, and avoiding terminal can not know that first pass can not determine the problem of code block segmentation length or HARQ cannot achieve caused by code rate.

Description

A kind of data transmission method, base station and terminal
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method, base station and terminal.
Background technique
As 4G enters extensive commercial stage, the 5th third-generation mobile communication (5G) to face the future has become global development heat Point.Under the joint efforts of global industry and academia, 5G vision is substantially clear with critical capability demand, and international standard is formulated Work has also formally started.HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) is exactly The important technology of one of them.
At present base station need according to just pass code rate carry out code block segmentation or determine HARQ retransmit initial position, if terminal without Method, which is known, just passes code rate, and will lead to can not determine that code block segmentation length or HARQ cannot achieve, this problems demand solves.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of data transmission method, base station and terminals, solve the prior art Middle terminal, which can not be known to will lead to when just passing code rate, can not determine the problem of code block segmentation length or HARQ cannot achieve.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of data transmission method, comprising:
The control signaling that instruction just passes code rate is sent to terminal；
If detecting the control signaling transmission failure, continue to send the control letter that instruction just passes code rate to the terminal It enables.
Optionally, sending the step of instruction just passes the control signaling of code rate to terminal includes:
The control signaling that scheduling just passes redundancy versions is sent to terminal, the control signaling carries implicit or display instruction Just pass the information of code rate.
Optionally, sending the step of scheduling just passes the control signaling of redundancy versions to terminal includes:
The descending control signaling that scheduling just passes redundancy versions is sent to terminal.
Optionally, if detecting the control signaling transmission failure, continue just to pass code rate to terminal transmission instruction The step of control signaling includes:
If detecting, scheduling just passes the descending control signaling transmission failure of redundancy versions, continues to send to the terminal and dispatch Just pass the descending control signaling of redundancy versions.
Optionally, after sending the first descending control signaling for passing redundancy versions of scheduling to terminal, further includes:
If detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and Xiang Suoshu terminal sends scheduling except just Pass the descending control signaling of other retransmitted redundant versions outside redundancy versions.
Optionally, sending the step of scheduling just passes the control signaling of redundancy versions to terminal includes:
The upstream control signaling that scheduling just passes redundancy versions is sent to terminal.
Optionally, if detecting the control signaling transmission failure, continue just to pass code rate to terminal transmission instruction The step of control signaling includes:
If detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to send to the terminal and dispatch Just pass the upstream control signaling of redundancy versions.
Optionally, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to the terminal Before the uplink control signaling step for sending the first biography redundancy versions of scheduling, further includes:
Detection receives the power of signal；
According to the power for receiving signal, judge to dispatch just pass redundancy versions upstream control signaling transmission whether at Function.
Optionally, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to the terminal Before the uplink control signaling step for sending the first biography redundancy versions of scheduling, further includes:
Obtain the decoding result to all code blocks；
According to the decoding to all code blocks as a result, whether the upstream control signaling transmission that scheduling just passes redundancy versions succeeds.
Optionally, sending the step of scheduling just passes the control signaling of redundancy versions to terminal includes:
Scheduling, which is sent, to terminal just passes modulation and coding plan in the down control channel PDCCH, the PDCCH of redundancy versions Slightly MCS is implicit or display instruction just passes code rate.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, comprising:
First sending module, for sending the control signaling that instruction just passes code rate to terminal；
Second sending module, if continuing to send instruction to the terminal for detecting the control signaling transmission failure Just pass the control signaling of code rate.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, including transceiver, memory, place It manages device and is stored in the computer program that can be run on the memory and on the processor；
The transceiver is used to send the control signaling that instruction just passes code rate to terminal；
The processor is used to read the program in memory, executes following process: detecting the control signaling transmission Failure, the transceiver continue to send the control signaling that instruction just passes code rate to the terminal.
Optionally, the transceiver is also used to send the control signaling that scheduling just passes redundancy versions, the control to terminal Signaling carries the information that implicit or display instruction just passes code rate.
Optionally, the transceiver is also used to send the descending control signaling that scheduling just passes redundancy versions to terminal.
Optionally, the processor is also used to execute following process: detecting that scheduling just passes the downlink control of redundancy versions Signalling failure, the transceiver continue to send the descending control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, the processor is also used to execute following process: the transceiver sends scheduling to terminal and just passes redundancy After the descending control signaling of version, detect that scheduling just passes the descending control signaling transmission success of redundancy versions, the transmitting-receiving Machine sends the descending control signaling of other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions to the terminal.
Optionally, the transceiver is also used to send the upstream control signaling that scheduling just passes redundancy versions to terminal.
Optionally, the processor is also used to execute following process: detecting that scheduling just passes the upload control of redundancy versions Signalling failure, the transceiver continue to send the upstream control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, the processor is also used to execute following process: detecting that scheduling just passes the upload control of redundancy versions Signalling failure, before the transceiver continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal, Detection receives the power of signal；
The processor is also used to execute following process: according to the power for receiving signal, judging to dispatch just biography redundancy Whether the upstream control signaling transmission of version succeeds.
Optionally, the processor is also used to execute following process: detecting that scheduling just passes the upload control of redundancy versions Signalling failure, before the transceiver continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal, Obtain the decoding result to all code blocks；
The processor is also used to execute following process: according to the decoding to all code blocks as a result, the first biography of judgement scheduling is superfluous Whether the upstream control signaling transmission of remaining version succeeds.
Optionally, the transceiver is also used to send the down control channel PDCCH that scheduling just passes redundancy versions to terminal, Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in the PDCCH.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of computer readable storage medium, deposit thereon Computer program is contained, as above described in any item data transmission methods are realized when which is executed by processor.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of data transmission method, comprising:
Receive the control signaling that the instruction that base station is sent just passes code rate；
If the control signaling receives successfully, is determined according to the control signaling and just pass code rate；
If the control signaling reception failure, the control signaling that the instruction that the base station is sent just passes code rate is continued to.
Optionally, receiving the step of instruction that base station is sent just passes the control signaling of code rate includes:
The control signaling that the scheduling that base station is sent just passes redundancy versions is received, the control signaling carries implicit or display Indicate the information for just passing code rate.
Optionally, receiving the step of scheduling that base station is sent just passes the control signaling of redundancy versions includes:
Receive the descending control signaling that the scheduling that base station is sent just passes redundancy versions.
Optionally, after the descending control signaling that redundancy versions are passed at the beginning of receiving the scheduling that base station is sent, further includes:
Receive the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions；
If detecting, incorrectly decoded scheduling just passes the descending control signaling of redundancy versions, abandons decoding downlink control letter Enable other retransmitted redundant versions of scheduling.
Optionally, receiving the step of scheduling that base station is sent just passes the control signaling of redundancy versions includes:
Receive the upstream control signaling that the scheduling that base station is sent just passes redundancy versions.
Optionally, receiving the step of scheduling that base station is sent just passes the control signaling of redundancy versions includes:
The scheduling that base station is sent is received just to pass modulation in the down control channel PDCCH, the PDCCH of redundancy versions and compile Code strategy MCS is implicit or display instruction just passes code rate.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of terminal, comprising:
First receiving module, the instruction for receiving base station transmission just pass the control signaling of code rate；
Determining module determines according to the control signaling if receiving successfully for the control signaling and just passes code rate；
Second receiving module, if being used for the control signaling reception failure, at the beginning of continuing to the instruction that the base station is sent Pass the control signaling of code rate.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of terminal, including transceiver, memory, place It manages device and is stored in the computer program that can be run on the memory and on the processor；
The instruction that the transceiver is used to receive base station transmission just passes the control signaling of code rate；
The processor is used to read the program in memory, executes following process: if the control signaling receives successfully, It is determined according to the control signaling and just passes code rate；
If the transceiver is also used to the control signaling reception failure, continues to the instruction that the base station is sent and just pass The control signaling of code rate.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the control signaling of redundancy versions, described Control signaling carries the information that implicit or display instruction just passes code rate.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the descending control signaling of redundancy versions.
Optionally, the transceiver be also used to receive base station transmission scheduling just pass redundancy versions descending control signaling it Afterwards, the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions is received；
The processor is also used to execute following process: if detecting, incorrectly decoded scheduling just passes the downlink of redundancy versions Control signaling then abandons other retransmitted redundant versions of decoding descending control signaling scheduling.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the upstream control signaling of redundancy versions.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the down control channel of redundancy versions Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in PDCCH, the PDCCH.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of computer readable storage medium, deposit thereon Computer program is contained, as above described in any item data transmission methods are realized when which is executed by processor.
The advantageous effects of the above technical solutions of the present invention are as follows:
The data transmission method of the embodiment of the present invention, after the control signaling that instruction just passes code rate is sent to terminal, if inspection Control signaling transmission failure is measured, continues to send the control signaling that instruction just passes code rate to terminal.Ensure that terminal can It is successfully received the control signaling that instruction just passes code rate, avoiding terminal can not know that first pass can not determine code block caused by code rate The problem of segmentation length or HARQ cannot achieve.
Detailed description of the invention
Fig. 1 is the flow chart of data transmission method provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 3 is another structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 4 is another flow chart of data transmission method provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of terminal provided in an embodiment of the present invention；
Fig. 6 is another structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.
In some embodiments of the invention, shown in referring to Fig.1, a kind of data transmission method is provided, comprising:
Step 101, the control signaling that instruction just passes code rate is sent to terminal；
Step 102, if detecting the control signaling transmission failure, continue just to pass code rate to terminal transmission instruction Control signaling.
Wherein, above-mentioned steps 102 are recyclable executes, i.e., after execution step 102, can continue to test control signaling transmission is No success continues to send the control signaling that instruction just passes code rate to terminal, until control if detecting control signaling transmission failure Signalling success.
Wherein, the control signaling that step 101 is sent can be different from the control signaling that step 102 is sent.
The data transmission method of the embodiment of the present invention, after the control signaling that instruction just passes code rate is sent to terminal, if inspection Control signaling transmission failure is measured, continues to send the control signaling that instruction just passes code rate to terminal.Ensure that terminal can It is successfully received the control signaling that instruction just passes code rate, avoiding terminal can not know that first pass can not determine code block caused by code rate The problem of segmentation length or HARQ cannot achieve.
Optionally, above-mentioned steps 101 include:
Step 1011, the control signaling that scheduling just passes redundancy versions is sent to terminal, the control signaling carries implicitly Or display instruction just passes the information of code rate.
At this point, terminal can just pass in the control signaling of redundancy versions according to scheduling, implicit or display instruction just passes code rate Information determines and just passes code rate.Wherein, if detecting, scheduling just passes the control signaling transmission failure of redundancy versions, and base station will continue to The control signaling that scheduling just passes redundancy versions is sent to terminal, ensures that terminal can successfully obtain and just passes code rate.
In addition, above-mentioned steps 101 can also include:
The control signaling for calling other retransmitted redundant versions is sent to terminal, and implicit or display is carried in control signaling and is referred to Show the information for just passing code rate.
For example, bit information can be added in the control signaling for calling other retransmitted redundant versions, believe in the bit of addition The complete MCS (Modulation and Coding Scheme, modulation and coding strategy) for just passing redundancy versions is carried in breath, Or current MCS is indicated by the bit information of addition and just passes the difference of the MCS of redundancy versions, just pass the MCS of redundancy versions Implicit or display instruction just passes code rate.But not limited to this.
Specifically, above-mentioned steps 1011 include:
Scheduling, which is sent, to terminal just passes modulation and coding plan in the down control channel PDCCH, the PDCCH of redundancy versions Slightly MCS is implicit or display instruction just passes code rate.
At this point, scheduling just passes control signaling, that is, PDCCH of redundancy versions, terminal can be according to MCS in PDCCH, by implicit Or the mode of display determines and just passes code rate.Wherein, if detecting, scheduling just passes the PDCCH transmission failure of redundancy versions, base station meeting Continue to send the PDCCH that scheduling just passes redundancy versions to terminal, ensures that terminal can successfully obtain and just pass code rate.
For descending scheduling, optionally, above-mentioned steps 1011 include:
The descending control signaling that scheduling just passes redundancy versions is sent to terminal.
At this point, terminal can just pass the descending control signaling of redundancy versions according to scheduling, determines and just pass code rate.
Above-mentioned steps 102 include:
If detecting, scheduling just passes the descending control signaling transmission failure of redundancy versions, continues to send to the terminal and dispatch Just pass the descending control signaling of redundancy versions.
At this point, if detecting, scheduling just passes the descending control signaling transmission failure of redundancy versions, and base station will continue to terminal The descending control signaling that scheduling just passes redundancy versions is sent, ensures that terminal can be successfully received scheduling and just pass redundancy version This descending control signaling, and then successfully obtain and just pass code rate.
Wherein, the descending control signaling that scheduling just passes redundancy versions can be such as carried in PDCCH, in PDCCH MCS it is implicit or Display instruction just passes code rate.At this point, base station, which sends the first descending control signaling for passing redundancy versions of scheduling to terminal, is carried on PDCCH In, if terminal is not properly received PDCCH, terminal behavior is not send NACK, therefore base station can detect whether to be properly received ACK If NACK is not properly received ACK or NACK, it is determined that the PDCCH that scheduling just passes redundancy versions transmits failure, continues Send the PDCCH that scheduling just passes redundancy versions.
Optionally, after sending the first descending control signaling for passing redundancy versions of scheduling to terminal, further includes:
If detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and Xiang Suoshu terminal sends scheduling except just Pass the descending control signaling of other retransmitted redundant versions outside redundancy versions.
At this point, if detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and base station continues to send out to terminal Send the descending control signaling of other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions.
Wherein, if terminal receives the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission, and not just True decoding scheduling just passes the descending control signaling of redundancy versions, then terminal can abandon decoding descending control signaling scheduling other are heavy Pass redundancy versions.
Wherein, the descending control signaling for dispatching other retransmitted redundant versions can also be carried in PDCCH.It is sent out to terminal base station The PDCCH for sending scheduling just to pass redundancy versions, if terminal is not properly received PDCCH, terminal behavior is not send NACK.Although eventually End is without sending NACK, but noise may be accidentally decoded as NACK by base station, and base station determines that scheduling just passes redundancy versions at this time PDCCH transmission success continues to send the PDCCH for dispatching other retransmitted redundant versions to terminal.Terminal receives scheduling letter at this time Pass through NDI (New Data Indication, new data instruction) or the instruction of retransmitted redundant version, discovery base station hair after order What is sent is to retransmit signal and be not correctly decoded the PDCCH that scheduling just passes redundancy versions, then terminal abandons decoding PDCCH scheduling Other retransmitted redundant versions.
For uplink scheduling, optionally, above-mentioned steps 1011 include:
The upstream control signaling that scheduling just passes redundancy versions is sent to terminal.
At this point, terminal can just pass the upstream control signaling of redundancy versions according to scheduling, determines and just pass code rate.
Above-mentioned steps 102 include:
If detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to send to the terminal and dispatch Just pass the upstream control signaling of redundancy versions.
At this point, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, and base station will continue to terminal The upstream control signaling that scheduling just passes redundancy versions is sent, ensures that terminal can be successfully received scheduling and just pass redundancy version This upstream control signaling, and then successfully obtain and just pass code rate.
Optionally, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to the terminal Before the uplink control signaling step for sending the first biography redundancy versions of scheduling, further includes:
Detection receives the power of signal；
According to the power for receiving signal, judge to dispatch just pass redundancy versions upstream control signaling transmission whether at Function.
At this point, can judge to dispatch the upstream control signaling transmission for just passing redundancy versions by the power level of reception signal Whether succeed.If the power for receiving signal is very low lower than threshold value, that is, the power level of reception signal, then it can determine tune The upstream control signaling that degree just passes redundancy versions transmits failure.
Wherein such as the power of detectable DMRS (Demodulation Reference Signal, demodulated reference signal), sentence Whether the upstream control signaling transmission that disconnected scheduling just passes redundancy versions succeeds, but not limited to this.
Optionally, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, continues to the terminal Before the uplink control signaling step for sending the first biography redundancy versions of scheduling, further includes:
Obtain the decoding result to all code blocks；
According to all code blocks decoding as a result, judge scheduling just pass redundancy versions upstream control signaling transmit whether at Function.
At this point, can be by the decoding to all code blocks (CB, Code Block) as a result, judgement scheduling just passes redundancy versions Whether upstream control signaling transmission succeeds.If then can determine that scheduling just passes redundancy versions to the equal decoding error of all code blocks Upstream control signaling transmission failure.
Wherein, the upstream control signaling that scheduling just passes redundancy versions can be such as carried in PDCCH.At this point, base station is to terminal It sends the first upstream control signaling for passing redundancy versions of scheduling to be carried in PDCCH, if terminal is not properly received PDCCH, terminal Any redundancy versions will not be sent.Base station decoding discovery terminal does not send signal, the DMRS that can be sent by decoding terminal Signal power level just passes redundancy versions as a result, judging whether terminal is properly received to dispatch to the decoding of all code blocks PDCCH.If confirmation terminal does not receive the PDCCH that scheduling just passes redundancy versions, continue just to pass redundancy to terminal transmission scheduling The PDCCH of version.
Below with reference to concrete application scene, the application flow of the data transmission method of the embodiment of the present invention is illustrated such as Under.
The first application scenarios, in existing 4G LTE-turbo HARQ, 4 defining redundancy versions, 4 beginnings Point initiates transmission from fixed starting point every time, but for 5G LDPC code, such retransmission scheme will lead to repetition and Deletion condition is serious, and frame error rate is high.It, can be each based on code rate choice of dynamical is just passed in order to avoid repeating the generation with deletion condition The transmission initial position of retransmitted redundant version.If terminal, which cannot obtain just biography code rate, which will lead to HARQ, cannot achieve.
The data transmission method of the embodiment of the present invention is applied under the scene, base station sends scheduling to terminal and just passes redundancy version MCS is implicit in this PDCCH, PDCCH or display instruction just passes code rate.If terminal is not successfully received scheduling and just passes redundancy versions PDCCH, base station detect the first PDCCH transmission failure for passing redundancy versions of scheduling, will continue to send to dispatch to terminal just to pass redundancy The PDCCH of version, until terminal is properly received the PDCCH that scheduling just passes redundancy versions.Terminal can successfully obtain just biography at this time Code rate, and according to the first transmission initial position for passing code rate and determining each retransmitted redundant version.
Second of application scenarios has in 5G LDPC (Low Density Parity Check, low-density checksum) Two BG (Base Graph, parent map), BG#1 maximum length are that 8448, BG#2 maximum length is 3840.In this application scene In, code block segmentation is carried out based on code rate is just passed.Such as according to 3GPP meeting conclusion, when passing code rate lower than 1/4 originally, using BG#2 Carry out code block segmentation.That is needing to carry out code block segmentations according to 3840, regardless of transmission block is big when passing code rate lower than 1/4 originally Small is how many.Once passing code rate selection BG#2 according to first, inevitable choice BG#2 is retransmitted, at this time the control signaling of Schedule retransmission version In code rate information can not alternatively BG foundation.Terminal needs to solve control signaling acquisition just biography code rate, ability at this time The BG used is determined, so that it is determined that code block segmentation length.If terminal, which cannot obtain just biography code rate, which will lead to, can not determine code block point Cut length.
The data transmission method of the embodiment of the present invention is applied under the scene, base station sends scheduling to terminal and just passes redundancy version MCS is implicit in this PDCCH, PDCCH or display instruction just passes code rate.If terminal is not successfully received scheduling and just passes redundancy versions PDCCH, base station detect the first PDCCH transmission failure for passing redundancy versions of scheduling, will continue to send to dispatch to terminal just to pass redundancy The PDCCH of version, until terminal is properly received the PDCCH that scheduling just passes redundancy versions.Terminal can successfully obtain just biography at this time Code rate, and code block segmentation length is determined according to the first code rate that passes.
The data transmission method of the embodiment of the present invention, after the control signaling that instruction just passes code rate is sent to terminal, if inspection Control signaling transmission failure is measured, continues to send the control signaling that instruction just passes code rate to terminal.Ensure that terminal can It is successfully received the control signaling that instruction just passes code rate, avoiding terminal can not know that first pass can not determine code block caused by code rate The problem of segmentation length or HARQ cannot achieve.
In some embodiments of the invention, referring to shown in Fig. 2, a kind of base station is additionally provided, comprising:
First sending module 201, for sending the control signaling that instruction just passes code rate to terminal；
Second sending module 202, if continuing to refer to terminal transmission for detecting the control signaling transmission failure Show the control signaling for just passing code rate.
The base station of the embodiment of the present invention, after the control signaling that instruction just passes code rate is sent to terminal, if detecting control Signalling failure continues to send the control signaling that instruction just passes code rate to terminal.Ensure that terminal can be properly received The control signaling that code rate is just passed to instruction, avoiding terminal can not know that first pass can not determine code block segmentation length caused by code rate Or HARQ the problem of cannot achieve.
Optionally, first sending module 201 includes:
First sending submodule, for sending the control signaling that scheduling just passes redundancy versions, the control signaling to terminal Carry the information that implicit or display instruction just passes code rate.
Optionally, first sending submodule includes:
First transmission unit, for sending the descending control signaling that scheduling just passes redundancy versions to terminal.
Optionally, second sending module 202 includes:
Second sending submodule, if for detecting that scheduling just passes the descending control signaling transmission failure of redundancy versions, after Continue to the terminal and sends the descending control signaling that scheduling just passes redundancy versions.
Optionally, further includes:
Third sending module sends the downlink control that scheduling just passes redundancy versions to terminal for first transmission unit After signaling, if detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and Xiang Suoshu terminal sends scheduling and removes Just pass the descending control signaling of other retransmitted redundant versions outside redundancy versions.
Optionally, first sending submodule includes:
Second transmission unit, for sending the upstream control signaling that scheduling just passes redundancy versions to terminal.
Optionally, second sending module 202 includes:
Third sending submodule continues for detecting that scheduling just passes the upstream control signaling transmission failure of redundancy versions The upstream control signaling that scheduling just passes redundancy versions is sent to the terminal.
Optionally, further includes:
Detection module, if detecting that scheduling just passes the upstream control signaling of redundancy versions for the third sending submodule Transmission failure, before continuing to send the uplink control signaling step that scheduling just passes redundancy versions to the terminal, detection is received The power of signal；
First judgment module, for judging to dispatch the uplink control for just passing redundancy versions according to the power for receiving signal Whether signalling processed succeeds.
Optionally, further includes:
Obtain module, for it is described detect scheduling just pass redundancy versions upstream control signaling transmission failure, continue to Before the terminal sends the uplink control signaling step that scheduling just passes redundancy versions, the decoding knot to all code blocks is obtained Fruit；
Second judgment module, for according to decoding as a result, judgement scheduling just passes the uplink of redundancy versions to all code blocks Whether control signaling transmission succeeds.
Optionally, first sending submodule includes:
Third transmission unit, it is described for sending the down control channel PDCCH that scheduling just passes redundancy versions to terminal Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in PDCCH.
The base station of the embodiment of the present invention, after the control signaling that instruction just passes code rate is sent to terminal, if detecting control Signalling failure continues to send the control signaling that instruction just passes code rate to terminal.Ensure that terminal can be properly received The control signaling that code rate is just passed to instruction, avoiding terminal can not know that first pass can not determine code block segmentation length caused by code rate Or HARQ the problem of cannot achieve.
It should be noted that wherein all implementations are suitable for the base station in above-mentioned data transmission method embodiment In embodiment, it can also reach same technical effect.
In some embodiments of the invention, it referring to shown in Fig. 3, additionally providing a kind of base station, including transceiver 310, deposits It reservoir 320, processor 300, bus interface and is stored on the memory 320 and can be run on the processor 300 Computer program；
The transceiver 310 is used to send the control signaling that instruction just passes code rate to terminal；
The processor 300 is used to read the program in memory, executes following process: detecting that the control signaling passes Defeated failure, the transceiver 310 continue to send the control signaling that instruction just passes code rate to the terminal.
Wherein, in Fig. 3, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 300 The various circuits for the memory that the one or more processors and memory 320 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 310 can To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided Member.Processor 300, which is responsible for management bus architecture and common processing, memory 320, can store processor 300 and is executing operation When used data.
Optionally, the transceiver 310 is also used to send the control signaling that scheduling just passes redundancy versions, the control to terminal Signaling processed carries the information that implicit or display instruction just passes code rate.
Optionally, the transceiver 310 is also used to send the descending control signaling that scheduling just passes redundancy versions to terminal.
Optionally, the processor 300 is also used to execute following process: detecting that scheduling just passes the downlink control of redundancy versions Signalling failure processed, the transceiver 310 continue to send the descending control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, the processor 300 is also used to execute following process: the transceiver 310 sends scheduling just to terminal After the descending control signaling for passing redundancy versions, detect that scheduling just passes the descending control signaling transmission success of redundancy versions, institute State the downlink control letter that transceiver 310 sends other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions to the terminal It enables.
Optionally, the transceiver 310 is also used to send the upstream control signaling that scheduling just passes redundancy versions to terminal.
Optionally, the processor 300 is also used to execute following process: detecting that scheduling just passes the uplink control of redundancy versions Signalling failure processed, the transceiver 310 continue to send the upstream control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, the processor 300 is also used to execute following process: detecting that scheduling just passes the uplink control of redundancy versions Signalling failure processed, the transceiver 310 continue to send the upstream control signaling that scheduling just passes redundancy versions to the terminal Before, detection receives the power of signal；
The processor 300 is also used to execute following process: according to the power for receiving signal, it is superfluous to judge to dispatch just biography Whether the upstream control signaling transmission of remaining version succeeds.
Optionally, the processor 300 is also used to execute following process: detecting that scheduling just passes the uplink control of redundancy versions Signalling failure processed, the transceiver 310 continue to send the upstream control signaling that scheduling just passes redundancy versions to the terminal Before, the decoding result to all code blocks is obtained；
The processor 300 is also used to execute following process: according to the decoding to all code blocks as a result, judgement scheduling just passes Whether the upstream control signaling transmission of redundancy versions succeeds.
Optionally, the transceiver 310 is also used to send the down control channel that scheduling just passes redundancy versions to terminal Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in PDCCH, the PDCCH.
In some embodiments of the invention, a kind of computer readable storage medium is additionally provided, calculating is stored thereon with Machine program, the program perform the steps of when being executed by processor
The control signaling that instruction just passes code rate is sent to terminal；
If detecting the control signaling transmission failure, continue to send the control letter that instruction just passes code rate to the terminal It enables.
Optionally, it is also performed the steps of when which is executed by processor to terminal and sends scheduling just biography redundancy versions Control signaling, the control signaling carries the information that implicit or display instruction just passes code rate.
Optionally, it is also performed the steps of when which is executed by processor to terminal and sends scheduling just biography redundancy versions Descending control signaling.
Optionally, detect that scheduling just passes redundancy versions if also performing the steps of when the program is executed by processor Descending control signaling transmission failure continues to send the descending control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, it is also performed the steps of when which is executed by processor to terminal and sends scheduling just biography redundancy versions Descending control signaling after, if detect scheduling just pass redundancy versions descending control signaling transmission success, Xiang Suoshu terminal Send the descending control signaling of other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions.
Optionally, it is also performed the steps of when which is executed by processor to terminal and sends scheduling just biography redundancy versions Upstream control signaling.
Optionally, detect that scheduling just passes redundancy versions if also performing the steps of when the program is executed by processor Upstream control signaling transmission failure continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal.
Optionally, detect that scheduling just passes redundancy versions if also performing the steps of when the program is executed by processor Upstream control signaling transmission failure, continue to the terminal send scheduling just pass redundancy versions uplink control signaling step it Before, detection receives the power of signal；According to the power for receiving signal, judge to dispatch the upload control letter for just passing redundancy versions Enable whether transmission succeeds.
Optionally, it is also performed the steps of when which is executed by processor and detects that scheduling just passes the upper of redundancy versions Row control signaling transmission failure, continue to the terminal send scheduling just pass redundancy versions uplink control signaling step it Before, obtain the decoding result to all code blocks；According to the decoding to all code blocks as a result, judgement scheduling just passes the upper of redundancy versions Whether the transmission of row control signaling succeeds.
Optionally, it is also performed the steps of when which is executed by processor to terminal and sends scheduling just biography redundancy versions Down control channel PDCCH, the PDCCH in modulation and coding strategy MCS it is implicit or display instruction just passes code rate.
In some embodiments of the invention, referring to shown in Fig. 4, a kind of data transmission method is additionally provided, comprising:
Step 401, the control signaling that the instruction that base station is sent just passes code rate is received；
Step 402, it if the control signaling receives successfully, is determined according to the control signaling and just passes code rate；
Step 403, if the control signaling reception failure, the control that the instruction that the base station is sent just passes code rate is continued to Signaling processed.
The data transmission method of the embodiment of the present invention, after base station sends the control signaling that instruction just passes code rate to terminal, If detecting control signaling transmission failure, continue to send the control signaling that instruction just passes code rate to terminal.Terminal is to control signaling Reception failure, the instruction that can continue to base station transmission just pass the control signaling of code rate.Ensure that terminal can successfully connect The control signaling that instruction just passes code rate is received, avoiding terminal can not know that first pass can not determine that code block segmentation is long caused by code rate The problem of degree or HARQ cannot achieve.
Optionally, above-mentioned steps 401 include:
Step 4011, the control signaling that the scheduling that base station is sent just passes redundancy versions is received, the control signaling carries Implicit or display instruction just passes the information of code rate.
At this point, terminal can just pass in the control signaling of redundancy versions according to scheduling, implicit or display instruction just passes code rate Information determines and just passes code rate.Wherein, if detecting, scheduling just passes the control signaling transmission failure of redundancy versions, and base station will continue to The control signaling that scheduling just passes redundancy versions is sent to terminal.Terminal can continue to base station hair to control signaling reception failure The scheduling sent just passes the control signaling of redundancy versions.It ensures that terminal can successfully obtain and just passes code rate.
Specifically, above-mentioned steps 4011 include:
The scheduling that base station is sent is received just to pass modulation in the down control channel PDCCH, the PDCCH of redundancy versions and compile Code strategy MCS is implicit or display instruction just passes code rate.
At this point, terminal can be determined by way of implicit or display according to MCS in PDCCH and just pass code rate.Wherein, if inspection The first PDCCH transmission failure for passing redundancy versions of scheduling is measured, base station will continue to send to dispatch to terminal just to pass redundancy versions PDCCH.The PDCCH reception that terminal just passes redundancy versions to scheduling fails, and the scheduling that can continue to base station transmission just passes redundancy The PDCCH of version.It ensures that terminal can successfully obtain and just passes code rate.
For descending scheduling, optionally, above-mentioned steps 4011 include:
Receive the descending control signaling that the scheduling that base station is sent just passes redundancy versions.
At this point, terminal can just pass the descending control signaling of redundancy versions according to scheduling, determines and just pass code rate.
Wherein, if detecting, scheduling just passes the descending control signaling transmission failure of redundancy versions, and base station will continue to terminal Send the descending control signaling that scheduling just passes redundancy versions.The descending control signaling that terminal just passes redundancy versions to scheduling, which receives, to be lost It loses, the scheduling that can continue to base station transmission just passes the descending control signaling of redundancy versions.Ensure that terminal can succeed It receives scheduling and just passes the descending control signaling of redundancy versions, and then successfully obtain and just pass code rate.
Optionally, after the descending control signaling that redundancy versions are passed at the beginning of receiving the scheduling that base station is sent, further includes:
Receive the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions；
If detecting, incorrectly decoded scheduling just passes the descending control signaling of redundancy versions, abandons decoding downlink control letter Enable other retransmitted redundant versions of scheduling.
At this point, if detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and base station continues to send out to terminal Send the descending control signaling of other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions.If terminal receives base station transmission The descending control signaling of other retransmitted redundant versions is dispatched, and incorrectly decoded scheduling just passes the downlink control letter of redundancy versions It enables, then terminal can abandon other retransmitted redundant versions of decoding descending control signaling scheduling.
For uplink scheduling, optionally, above-mentioned steps 4011 include:
Receive the upstream control signaling that the scheduling that base station is sent just passes redundancy versions.
At this point, terminal can just pass the upstream control signaling of redundancy versions according to scheduling, determines and just pass code rate.
Wherein, if detecting, scheduling just passes the upstream control signaling transmission failure of redundancy versions, and base station will continue to terminal Send the upstream control signaling that scheduling just passes redundancy versions.The upstream control signaling that terminal just passes redundancy versions to scheduling, which receives, to be lost It loses, the scheduling that can continue to base station transmission just passes the upstream control signaling of redundancy versions.Ensure that terminal can succeed It receives scheduling and just passes the upstream control signaling of redundancy versions, and then successfully obtain and just pass code rate.
The data transmission method of the embodiment of the present invention, after base station sends the control signaling that instruction just passes code rate to terminal, If detecting control signaling transmission failure, continue to send the control signaling that instruction just passes code rate to terminal.Terminal is to control signaling Reception failure, the instruction that can continue to base station transmission just pass the control signaling of code rate.Ensure that terminal can successfully connect The control signaling that instruction just passes code rate is received, avoiding terminal can not know that first pass can not determine that code block segmentation is long caused by code rate The problem of degree or HARQ cannot achieve.
In some embodiments of the invention, referring to Figure 5, a kind of terminal is additionally provided, comprising:
First receiving module 501, the instruction for receiving base station transmission just pass the control signaling of code rate；
Determining module 502 determines according to the control signaling if receiving successfully for the control signaling and just passes code rate；
Second receiving module 503 continues to the instruction that the base station is sent if being used for the control signaling reception failure Just pass the control signaling of code rate.
The terminal of the embodiment of the present invention, after base station sends the control signaling that instruction just passes code rate to terminal, if detecting Control signaling transmission failure continues to send the control signaling that instruction just passes code rate to terminal.Terminal to control signaling reception failure, The instruction that can continue to base station transmission just passes the control signaling of code rate.Ensure that terminal can be successfully received instruction just The control signaling for passing code rate, avoiding terminal can not know that first pass can not determine code block segmentation length or HARQ caused by code rate The problem of cannot achieve.
Optionally, first receiving module 501 includes:
First receiving submodule, the scheduling for receiving base station transmission just pass the control signaling of redundancy versions, the control Signaling carries the information that implicit or display instruction just passes code rate.
Optionally, first receiving submodule includes:
First receiving unit, the scheduling for receiving base station transmission just pass the descending control signaling of redundancy versions.
Optionally, further includes:
Third receiving module receives the downlink that the scheduling that base station is sent just passes redundancy versions for first receiving unit After control signaling, the downlink for receiving other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions controls letter It enables；
Decoder module is abandoned, if for detecting that incorrectly decoded scheduling just passes the descending control signaling of redundancy versions, Abandon other retransmitted redundant versions of decoding descending control signaling scheduling.
Optionally, first receiving submodule includes:
Second receiving unit, the scheduling for receiving base station transmission just pass the upstream control signaling of redundancy versions.
Optionally, first receiving submodule includes:
Third receiving unit, the scheduling for receiving base station transmission just pass the down control channel PDCCH of redundancy versions, institute It states modulation in PDCCH and coding strategy MCS is implicit or display indicates just biography code rate.
The terminal of the embodiment of the present invention, after base station sends the control signaling that instruction just passes code rate to terminal, if detecting Control signaling transmission failure continues to send the control signaling that instruction just passes code rate to terminal.Terminal to control signaling reception failure, The instruction that can continue to base station transmission just passes the control signaling of code rate.Ensure that terminal can be successfully received instruction just The control signaling for passing code rate, avoiding terminal can not know that first pass can not determine code block segmentation length or HARQ caused by code rate The problem of cannot achieve.
It should be noted that wherein all implementations are suitable for the terminal in above-mentioned data transmission method embodiment In embodiment, it can also reach same technical effect.
In some embodiments of the invention, it referring to shown in Fig. 6, additionally providing a kind of terminal, including transceiver 610, deposits It reservoir 620, processor 600, user interface 630, bus interface and is stored on the memory 620 and can be in the processor The computer program run on 600；
The instruction that the transceiver 610 is used to receive base station transmission just passes the control signaling of code rate；
The processor 600 is used to read program in memory, executes following process: if the control signaling receive at Function determines according to the control signaling and just passes code rate；
If the transceiver 610 is also used to the control signaling reception failure, the instruction that the base station is sent is continued to Just pass the control signaling of code rate.
Wherein, in Fig. 6, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 600 The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 can To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 600, which is responsible for management bus architecture and common processing, memory 620, can store processor 600 and is holding Used data when row operation.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the control signaling of redundancy versions, described Control signaling carries the information that implicit or display instruction just passes code rate.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the descending control signaling of redundancy versions.
Optionally, the transceiver be also used to receive base station transmission scheduling just pass redundancy versions descending control signaling it Afterwards, the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions is received；
The processor is also used to execute following process: if detecting, incorrectly decoded scheduling just passes the downlink of redundancy versions Control signaling then abandons other retransmitted redundant versions of decoding descending control signaling scheduling.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the upstream control signaling of redundancy versions.
Optionally, the scheduling that the transceiver is also used to receive base station transmission just passes the down control channel of redundancy versions Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in PDCCH, the PDCCH.
In some embodiments of the invention, a kind of computer readable storage medium is also provided, computer is stored thereon with Program, the program perform the steps of when being executed by processor
Receive the control signaling that the instruction that base station is sent just passes code rate；
If the control signaling receives successfully, is determined according to the control signaling and just pass code rate；
If the control signaling reception failure, the control signaling that the instruction that the base station is sent just passes code rate is continued to.
Optionally, it is also performed the steps of when which is executed by processor and passes redundancy at the beginning of receiving the scheduling that base station is sent The control signaling of version, the control signaling carry the information that implicit or display instruction just passes code rate.
Optionally, it is also performed the steps of when which is executed by processor and passes redundancy at the beginning of receiving the scheduling that base station is sent The descending control signaling of version.
Optionally, it is also performed the steps of when which is executed by processor and passes redundancy at the beginning of receiving the scheduling that base station is sent After the descending control signaling of version, other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions are received Descending control signaling；If detecting, incorrectly decoded scheduling just passes the descending control signaling of redundancy versions, abandons decoding downlink Other retransmitted redundant versions of control signaling scheduling.
Optionally, it is also performed the steps of when which is executed by processor and passes redundancy at the beginning of receiving the scheduling that base station is sent The upstream control signaling of version.
Optionally, it is also performed the steps of when which is executed by processor and passes redundancy at the beginning of receiving the scheduling that base station is sent Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS in the down control channel PDCCH, the PDCCH of version.
In various embodiments of the present invention, it should be appreciated that magnitude of the sequence numbers of the above procedures are not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (36)

1. a kind of data transmission method characterized by comprising
The control signaling that instruction just passes code rate is sent to terminal；
If detecting the control signaling transmission failure, continue to send the control signaling that instruction just passes code rate to the terminal.
2. data transmission method according to claim 1, which is characterized in that send the control that instruction just passes code rate to terminal The step of signaling includes:
The control signaling that scheduling just passes redundancy versions is sent to terminal, the control signaling carries implicit or display instruction and just passes The information of code rate.
3. data transmission method according to claim 2, which is characterized in that send scheduling to terminal and just pass redundancy versions The step of control signaling includes:
The descending control signaling that scheduling just passes redundancy versions is sent to terminal.
4. data transmission method according to claim 3, which is characterized in that if detecting, the control signaling transmission is lost It loses, continuing to send the step of indicating the just control signaling of biography code rate to the terminal includes:
If detecting the first descending control signaling transmission failure for passing redundancy versions of scheduling, continue to send to dispatch to the terminal just to pass The descending control signaling of redundancy versions.
5. data transmission method according to claim 3, which is characterized in that send scheduling to terminal and just pass redundancy versions After descending control signaling, further includes:
If detecting, scheduling just passes the descending control signaling transmission success of redundancy versions, and it is superfluous except just passing that Xiang Suoshu terminal sends scheduling The descending control signaling of other retransmitted redundant versions outside remaining version.
6. data transmission method according to claim 2, which is characterized in that send scheduling to terminal and just pass redundancy versions The step of control signaling includes:
The upstream control signaling that scheduling just passes redundancy versions is sent to terminal.
7. data transmission method according to claim 6, which is characterized in that if detecting, the control signaling transmission is lost It loses, continuing to send the step of indicating the just control signaling of biography code rate to the terminal includes:
If detecting the first upstream control signaling transmission failure for passing redundancy versions of scheduling, continue to send to dispatch to the terminal just to pass The upstream control signaling of redundancy versions.
8. data transmission method according to claim 7, which is characterized in that if detecting, scheduling just passes the upper of redundancy versions Row control signaling transmission failure, continue to the terminal send scheduling just pass redundancy versions uplink control signaling step it Before, further includes:
Detection receives the power of signal；
According to the power for receiving signal, whether the upstream control signaling transmission for judging to dispatch just biography redundancy versions succeeds.
9. data transmission method according to claim 7, which is characterized in that if detecting, scheduling just passes the upper of redundancy versions Row control signaling transmission failure, continue to the terminal send scheduling just pass redundancy versions uplink control signaling step it Before, further includes:
Obtain the decoding result to all code blocks；
According to the decoding to all code blocks as a result, judging whether the first upstream control signaling transmission for passing redundancy versions of scheduling succeeds.
10. data transmission method according to claim 2, which is characterized in that send scheduling to terminal and just pass redundancy versions Control signaling the step of include:
Scheduling, which is sent, to terminal just passes modulation and coding strategy in the down control channel PDCCH, the PDCCH of redundancy versions MCS is implicit or display instruction just passes code rate.
11. a kind of base station characterized by comprising
First sending module, for sending the control signaling that instruction just passes code rate to terminal；
Second sending module, if continuing just to pass to terminal transmission instruction for detecting the control signaling transmission failure The control signaling of code rate.
12. a kind of base station, including transceiver, memory, processor and it is stored on the memory and can be in the processor The computer program of upper operation；It is characterized in that,
The transceiver is used to send the control signaling that instruction just passes code rate to terminal；
The processor is used to read the program in memory, executes following process: detect the control signaling transmission failure, The transceiver continues to send the control signaling that instruction just passes code rate to the terminal.
13. base station according to claim 12, which is characterized in that
The transceiver is also used to send the control signaling that scheduling just passes redundancy versions to terminal, and the control signaling carries hidden Formula or display instruction just pass the information of code rate.
14. base station according to claim 13, which is characterized in that
The transceiver is also used to send the descending control signaling that scheduling just passes redundancy versions to terminal.
15. base station according to claim 14, which is characterized in that
The processor is also used to execute following process: detecting that scheduling just passes the descending control signaling transmission mistake of redundancy versions It loses, the transceiver continues to send the descending control signaling that scheduling just passes redundancy versions to the terminal.
16. base station according to claim 14, which is characterized in that
The processor is also used to execute following process: the transceiver sends the downlink control that scheduling just passes redundancy versions to terminal After signaling processed, detect that scheduling just passes the descending control signaling transmission success of redundancy versions, the transceiver is to the terminal Send the descending control signaling of other retransmitted redundant versions of the scheduling in addition to just passing redundancy versions.
17. base station according to claim 13, which is characterized in that
The transceiver is also used to send the upstream control signaling that scheduling just passes redundancy versions to terminal.
18. base station according to claim 17, which is characterized in that
The processor is also used to execute following process: detecting that scheduling just passes the upstream control signaling transmission mistake of redundancy versions It loses, the transceiver continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal.
19. base station according to claim 18, which is characterized in that
The processor is also used to execute following process: detecting that scheduling just passes the upstream control signaling transmission mistake of redundancy versions It loses, before the transceiver continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal, detection receives letter Number power；
The processor is also used to execute following process: according to the power for receiving signal, judging to dispatch just biography redundancy versions Upstream control signaling transmission whether succeed.
20. base station according to claim 18, which is characterized in that
The processor is also used to execute following process: detecting that scheduling just passes the upstream control signaling transmission mistake of redundancy versions It loses, before the transceiver continues to send the upstream control signaling that scheduling just passes redundancy versions to the terminal, obtains to all The decoding result of code block；
The processor is also used to execute following process: according to the decoding to all code blocks as a result, judgement scheduling just passes redundancy version Whether this upstream control signaling transmission succeeds.
21. base station according to claim 13, which is characterized in that
The transceiver is also used to send in the down control channel PDCCH, the PDCCH that scheduling just passes redundancy versions to terminal Modulation implicitly or shows that instruction just passes code rate with coding strategy MCS.
22. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor The step of data transmission method as described in any one of claims 1 to 10 is realized when execution.
23. a kind of data transmission method characterized by comprising
Receive the control signaling that the instruction that base station is sent just passes code rate；
If the control signaling receives successfully, is determined according to the control signaling and just pass code rate；
If the control signaling reception failure, the control signaling that the instruction that the base station is sent just passes code rate is continued to.
24. the data transmission method according to claim 23, which is characterized in that receive the instruction that base station is sent and just pass code rate The step of control signaling includes:
The control signaling that the scheduling that base station is sent just passes redundancy versions is received, the control signaling carries implicit or display instruction Just pass the information of code rate.
25. the data transmission method according to claim 24, which is characterized in that receive the scheduling that base station is sent and just pass redundancy version The step of this control signaling includes:
Receive the descending control signaling that the scheduling that base station is sent just passes redundancy versions.
26. the data transmission method according to claim 25, which is characterized in that receive the scheduling that base station is sent and just pass redundancy version After this descending control signaling, further includes:
Receive the descending control signaling of other retransmitted redundant versions of the scheduling of base station transmission in addition to just passing redundancy versions；
If detecting, incorrectly decoded scheduling just passes the descending control signaling of redundancy versions, abandons decoding descending control signaling tune Other retransmitted redundant versions of degree.
27. the data transmission method according to claim 24, which is characterized in that receive the scheduling that base station is sent and just pass redundancy version The step of this control signaling includes:
Receive the upstream control signaling that the scheduling that base station is sent just passes redundancy versions.
28. the data transmission method according to claim 24, which is characterized in that receive the scheduling that base station is sent and just pass redundancy version The step of this control signaling includes:
It receives the scheduling that base station is sent and just passes modulation and coding plan in the down control channel PDCCH, the PDCCH of redundancy versions Slightly MCS is implicit or display instruction just passes code rate.
29. a kind of terminal characterized by comprising
First receiving module, the instruction for receiving base station transmission just pass the control signaling of code rate；
Determining module determines according to the control signaling if receiving successfully for the control signaling and just passes code rate；
Second receiving module continues to the instruction that the base station is sent and just passes code if being used for the control signaling reception failure The control signaling of rate.
30. a kind of terminal, including transceiver, memory, processor and it is stored on the memory and can be in the processor The computer program of upper operation；It is characterized in that,
The instruction that the transceiver is used to receive base station transmission just passes the control signaling of code rate；
The processor is used to read program in memory, executes following process: if the control signaling receive successfully, according to The control signaling, which determines, just passes code rate；
If the transceiver is also used to the control signaling reception failure, continues to the instruction that the base station is sent and just pass code rate Control signaling.
31. the terminal according to claim 30, which is characterized in that at the beginning of the transceiver is also used to receive the scheduling of base station transmission The control signaling of redundancy versions is passed, the control signaling carries the information that implicit or display instruction just passes code rate.
32. the terminal according to claim 31, which is characterized in that at the beginning of the transceiver is also used to receive the scheduling of base station transmission Pass the descending control signaling of redundancy versions.
33. the terminal according to claim 32, which is characterized in that at the beginning of the transceiver is also used to receive the scheduling of base station transmission After the descending control signaling for passing redundancy versions, other retransmitted redundants of the scheduling of base station transmission in addition to just passing redundancy versions are received The descending control signaling of version；
The processor is also used to execute following process: if detecting, incorrectly decoded scheduling just passes the downlink control of redundancy versions Signaling then abandons other retransmitted redundant versions of decoding descending control signaling scheduling.
34. the terminal according to claim 31, which is characterized in that at the beginning of the transceiver is also used to receive the scheduling of base station transmission Pass the upstream control signaling of redundancy versions.
35. the terminal according to claim 31, which is characterized in that at the beginning of the transceiver is also used to receive the scheduling of base station transmission It is modulated in the down control channel PDCCH, the PDCCH of biography redundancy versions and coding strategy MCS is implicit or display indicates first biography Code rate.
36. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor Data transmission method when execution as described in any one of claim 23 to 28.
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