CN106888072A

CN106888072A - Data transmission method and device

Info

Publication number: CN106888072A
Application number: CN201710183469.7A
Authority: CN
Inventors: 张伟; 李明菊; 张云飞
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2017-06-23
Anticipated expiration: 2037-03-24
Also published as: CN106888072B

Abstract

A kind of data transmission method, methods described includes：Determine the addition manner of transmission block TB cyclic redundancy check (CRC)s；Addition manner according to identified transport block cyclic redundancy check determines the length of transport block cyclic redundancy check；Based on the length of the transport block cyclic redundancy check, calculate transport block cyclic redundancy check bit, and using the transport block cyclic redundancy check bit as transmission block a part；Transmission block comprising the transport block cyclic redundancy check bit is processed, and by the data is activation after treatment to receiving device.The present invention also provides a kind of data transmission device.The present invention can lift efficiency of transmission, reduce the false alarm rate of transmission block, improve the robustness of system.

Description

Data transmission method and device

Technical field

The present invention relates to communication technique field, more particularly to a kind of data transmission method and device.

Background technology

In 3GPP Long Term Evolutions (Long Term Evolution, LTE) encoding scheme, to the biography from logic channel Defeated piece (transport block, TB) adds by transport block cyclic redundancy check (Cyclic Redundancy Check, CRC) Plus, code block segmentation, code block (code block, CB) CRC addition, channel coding, rate-matched, code block cascade etc. A series of bit operating, is sent to subsequent treatment module.In receiver side, corresponding inverse operation is completed, it is, solution code block Cascade, solution rate-matched, channel decoding, the CRC of verification code block, the verification of removal code block cyclic redundancy, transmission block circulation Redundancy check etc. is operated, and demodulation obtains the data message of transmission block, and is sent to logic channel.

It is assumed that transport block length is A, then the transport block length B=A+L after transport block cyclic redundancy check is added；Each is passed Defeated piece contains the check bit that length is L, verifies whether the transmission block correctly demodulates for receiver side.

In LTE system, the length of transport block cyclic redundancy check is fixed, equal to 24 bits.Transmission block cyclic redundancy The length of verification, just determines the false-alarm probability of the transmission block.As a rule, the false-alarm probability FA of transport block cyclic redundancy check =2^-L, L represents the length of transport block cyclic redundancy check, and L numerical value is bigger, then the false-alarm probability of transmission block is lower, and false-alarm is brought Erroneous retransmissions loss it is smaller, the efficiency of transmission of system is higher.

Enhancing with people to wireless communication needs, present 5th third-generation mobile communication technology (5th-Generation, During access technology of 5G) newly eating dishes without rice or wine (New Radio Access Technology, NR) is studied in high gear, in NR Enhancing mobile broadband (enhanced mobile broadband, eMBB) scene refers in existing mobile broadband service scene On the basis of, further lifted for performances such as Consumer's Experiences, the interpersonal ultimate attainment communication experiences of main or pursuit. EMBB scenes are mainly directed towards local hot spot areas, provide the user high message transmission rate, meet the high flow of network Density requirement.

Compared to LTE, the transport block length of eMBB scenes can be greatly increased.In this case, if there is transmission block circulation The empty detection of redundancy check, a transmission block for incorrect reception is sent and gives media access control by physical layer error ground Media Access Control (MAC) layer, will so bring the automatic repeat request (Automatic of MAC layer Repeat Request, ARQ) retransmit, cause the very big wasting of resources.

As a rule, the false-alarm probability FA=2 of transport block cyclic redundancy check^-L, L represents transport block cyclic redundancy check Length, L numerical value is bigger, then the false-alarm probability of transmission block is lower, and the erroneous retransmissions loss that false-alarm is brought is smaller.It is empty for L=24 Alarm probability is probably 6e-8, compared to (the Hybrid Automatic Repeat of hybrid automatic repeat-request under eMBB scenes ReQuest, HARQ) 1e-6 to the 1e-9 that requires under+ARQ mechanism or so FER, it is very not low, it is necessary to further carry Rise.

The content of the invention

In view of the foregoing, it is necessary to which a kind of data transmission method and device are provided, efficiency of transmission can be lifted, transmission is reduced The false alarm rate of block, improves the robustness of system.

A kind of data transmission method, is applied to transmission equipment, and methods described includes：

Determine the addition manner of transmission block TB cyclic redundancy check (CRC)s；

Addition manner according to identified transport block cyclic redundancy check determines the length of transport block cyclic redundancy check；

Based on the length of the transport block cyclic redundancy check, transport block cyclic redundancy check bit is calculated, and will be described Transport block cyclic redundancy check bit as transmission block a part；

Transmission block comprising the transport block cyclic redundancy check bit is processed, and by the data is activation after treatment To receiving device.

According to the preferred embodiment of the present invention, the addition manner of the determination transport block cyclic redundancy check includes：

By way of static state, the addition manner of pre-defined transport block cyclic redundancy check is obtained；Or

Determine that according to communication scheduling strategy the CRC of transmission block adds from the first database of preset configuration Add mode；Or

The addition manner of the selected transport block cyclic redundancy check that the receiving device sends is received, and according to described The addition manner of the selected transport block cyclic redundancy check of receiving device, determines transmission from the first database being pre-configured with The addition manner of block CRC, addition side of first database comprising at least one transport block cyclic redundancy check Formula.

According to the preferred embodiment of the present invention, determined to pass from the first database of preset configuration according to communication scheduling strategy After the addition manner of defeated piece of CRC, or according to the selected transmission block cyclic redundancy school of the receiving device The addition manner tested, from the first database of preset configuration after the addition manner of determination transport block cyclic redundancy check, institute Stating method also includes：

Semi-static configuration information is sent to the receiving device so that the receiving device is from the second data being pre-configured with The addition manner of transport block cyclic redundancy check is determined in storehouse；Or

To the receiving device so that the receiving device is from pre- by way of sending dynamic signaling or control information The addition manner of transport block cyclic redundancy check is determined in the second database for first configuring, second database includes at least one Plant the addition manner of transport block cyclic redundancy check.

According to the preferred embodiment of the present invention, the addition manner of identified transport block cyclic redundancy check includes：In transmission One end addition transport block cyclic redundancy check of block；Or add transport block cyclic redundancy check at the two ends of transmission block.

According to the preferred embodiment of the present invention, the addition manner of transport block cyclic redundancy check determined by the basis determines The length of transport block cyclic redundancy check includes：

When the length of transmission block is less than or equal to the first preset value, and identified transport block cyclic redundancy check adds Add mode is, when transport block cyclic redundancy check is added in one end of transmission block, to determine the length of the transport block cyclic redundancy check It is the first preset length to spend；

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the length for determining the transport block cyclic redundancy check is when transport block cyclic redundancy check is added in one end of transmission block Second preset length, second preset length is more than first preset length；Or

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is when transport block cyclic redundancy check is added at the two ends of transmission block, it is determined that adding the first transmission respectively at the two ends of transmission block Block CRC and the second transport block cyclic redundancy check, and first transport block cyclic redundancy check length and institute The length sum for stating the second transport block cyclic redundancy check is more than first preset length.

According to the preferred embodiment of the present invention, the length computation first based on first transport block cyclic redundancy check is transmitted The calculation of block cyclic redundancy check bits and the length computation second based on second transport block cyclic redundancy check are passed Defeated piece of calculation of cyclic redundancy check bits include it is following one or more：

The first transport block cyclic redundancy check bit or institute are calculated in order since first bit of transmission block State the second transport block cyclic redundancy check bit；

Calculated in reverse order since last bit of transmission block the first transport block cyclic redundancy check bit or The second transport block cyclic redundancy check bit.

According to the preferred embodiment of the present invention, the addition manner of the transport block cyclic redundancy check is used for the biography of upstream data Defeated piece and/or the transmission block of downlink data.

A kind of data transmission method, is applied to receiving device, and methods described includes：

Receive the data that transmission equipment sends；

Based on the length of the transport block cyclic redundancy check, to the transport block cyclic redundancy check bit in the data Verified；

When the transport block cyclic redundancy check bit check is correct, the transmission block in the data is obtained.

According to the preferred embodiment of the present invention, the addition manner of the determination transport block cyclic redundancy check includes following one kind Or it is various：

The addition manner of pre-defined transport block cyclic redundancy check is obtained by way of static state；Or

The semi-static configuration information that the transmission equipment sends is received, and is matched somebody with somebody from advance according to the semi-static configuration information The addition manner of transport block cyclic redundancy check is determined in the second database put；Or

The dynamic signaling of the transmission equipment transmission or the mode of control information are received, and according to dynamic signaling or control The side of information processed determines the addition manner of transport block cyclic redundancy check, second number from the second database being pre-configured with According to addition manner of the storehouse comprising at least one transport block cyclic redundancy check.

According to the preferred embodiment of the present invention, before the data that transmission equipment sends are received, methods described also includes：

By signaling by the addition manner of selected transport block cyclic redundancy check notify to the transmission equipment for The transmission equipment determines the addition manner of transport block cyclic redundancy check, the signaling issue mode include it is following a kind of or Person is various：Dynamic is issued, is semi-statically configured transmitting signaling downwards.

A kind of data transmission device, runs on transmission equipment, and described device includes：

Determining module, the addition manner for determining transmission block TB cyclic redundancy check (CRC)s；

The addition manner that the determining module is additionally operable to the transport block cyclic redundancy check according to determined by determines transmission block The length of CRC；

Computing module, for the length based on the transport block cyclic redundancy check, calculates transport block cyclic redundancy check Bit, and using the transport block cyclic redundancy check bit as transmission block a part；

Processing module, for processing the transmission block comprising the transport block cyclic redundancy check bit, and will place Data is activation after reason is to receiving device.

According to the preferred embodiment of the present invention, the determining module determines the addition manner bag of transport block cyclic redundancy check Include：

According to the preferred embodiment of the present invention, described device also includes：

Sending module, for determining following for transmission block from the first database of preset configuration according to communication scheduling strategy After the addition manner of ring redundancy check, or in the addition according to the selected transport block cyclic redundancy check of the receiving device Mode, determines after the addition manner of transport block cyclic redundancy check from the first database of preset configuration, sends semi-static Configuration information gives the receiving device so that the receiving device determines that transmission block is circulated from the second database being pre-configured with The addition manner of redundancy check；Or

By sending dynamic signaling or control information to the receiving device so that the receiving device is from being pre-configured with The second database in determine the addition manner of transport block cyclic redundancy check, second database is transmitted comprising at least one The addition manner of block CRC.

According to the preferred embodiment of the present invention, the addition of determining module transport block cyclic redundancy check according to determined by Mode determines that the length of transport block cyclic redundancy check includes：

A kind of data transmission device, runs on receiving device, and described device includes：

Data reception module, the data for receiving the transmission of transmission equipment；

Mode determining module, the addition manner for determining transmission block TB cyclic redundancy check (CRC)s；

The addition manner that the mode determining module is additionally operable to the transport block cyclic redundancy check according to determined by determines to pass The defeated piece of length of CRC；

Correction verification module, for the length based on the transport block cyclic redundancy check, follows to the transmission block in the data Ring redundancy check bits are verified；

Acquisition module, for when the transport block cyclic redundancy check bit check is correct, in obtaining the data Transmission block.

According to the preferred embodiment of the present invention, the mode determining module determines the addition manner of transport block cyclic redundancy check Including it is following one or more：

Data transmission blocks, for before the data that transmission equipment sends are received, by signaling by selected transmission The addition manner of block CRC is notified to the transmission equipment so that the transmission equipment determines transmission block cyclic redundancy The addition manner of verification, the signaling issue mode include it is following one or more：Dynamic is issued, is semi-statically configured signaling Issue.

Found out by above technical scheme, present invention determine that the addition manner of transmission block TB cyclic redundancy check (CRC)s；According to institute The addition manner of the transport block cyclic redundancy check of determination determines the length of transport block cyclic redundancy check；Based on the transmission block The length of CRC, calculates transport block cyclic redundancy check bit.The present invention can lift efficiency of transmission, improve system Robustness.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.

Fig. 1 is the flow chart of the first preferred embodiment of data transmission method of the present invention.

Fig. 2 is the position signal of the first transport block cyclic redundancy check of the invention and the second transport block cyclic redundancy check Figure.

Fig. 3 is a schematic diagram for transmission block in one embodiment of the invention.

Fig. 4 is the flow chart of the second preferred embodiment of data transmission method of the present invention.

Fig. 5 is the functional block diagram of the first preferred embodiment of data transmission device of the present invention.

Fig. 6 is the functional block diagram of the second preferred embodiment of data transmission device of the present invention.

Fig. 7 is the structural representation of the transmission equipment of the preferred embodiment that the present invention realizes data transmission method.

Fig. 8 is the structural representation of the receiving device of the preferred embodiment that the present invention realizes data transmission method.

Main element symbol description

Specific embodiment

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

It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable The present invention is further detailed explanation to apply mode.

In the preferred embodiment of invention, transmission equipment is communicated with receiving device.When the transmission equipment is base station, institute It is terminal device to state receiving device.Certainly in other embodiments, the transmission equipment is not limited to base station, the receiving device It is not limited to terminal device.For example, the transmission equipment and the receiving device can also be the network equipment, the network equipment Including but not limited to single network server, the server group of multiple webserver composition or based on cloud computing (Cloud Computing the cloud being made up of a large amount of main frames or the webserver), wherein, cloud computing is one kind of Distributed Calculation, by one One super virtual computer of the computer collection composition of group's loose couplings.

The base station (for example, access point) can refer in access network in the air on interface by one or more sectors with The equipment of wireless terminal communications.The air frame that base station can be used to receive mutually is changed with IP packets, used as wireless terminal The remainder of the router and the remainder of access network between, wherein access network may include Internet protocol (IP) network.Base Attribute management of the tunable to air interface is gone back at station.For example, base station can be base station (BTS, Base in GSM or CDMA Transceiver Station), or WCDMA in base station (NodeB), can also be the evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the application is not limited.

The terminal device be it is a kind of can according to the instruction being previously set or store, carry out automatically numerical computations and/or The equipment of information processing, its hardware includes but is not limited to microprocessor, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), programmable gate array (Field-Programmable Gate Array, FPGA), number Word processing device (Digital Signal Processor, DSP), embedded device etc., the application is not limited.

The terminal device, can be that wireless terminal can also be catv terminal, and wireless terminal can be directed to user and carry For voice and/or the equipment of data connectivity, portable equipment with wireless connecting function or wireless modulation-demodulation is connected to Other processing equipments of device.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) and Individual or multiple core nets are communicated, and wireless terminal can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and Computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted shifting Dynamic device, they exchange language and/or data with wireless access network.For example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, WLL (WLL, Wireless Local Loop) stand, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Nothing Line terminal is referred to as system, subscri er unit (Subscriber Unit), subscriber station (Subscriber Station), moves Dynamic station (Mobile Station), mobile station (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device) or subscriber's installation (User Equipment)。

As shown in figure 1, being the flow chart of the first preferred embodiment of data transmission method of the present invention.According to different need Ask, the order of step can change in the flow chart, some steps can be omitted.

S10, the transmission equipment determines the addition manner of transmission block TB cyclic redundancy check (CRC)s.

In at least one embodiment of the present invention, the transmission block includes the transmission block and/or lower line number of upstream data According to transmission block, the addition manner of the transport block cyclic redundancy check can be used for the transmission block of upstream data and/or descending The transmission block of data.

The addition manner of the transport block cyclic redundancy check include it is following one or more：Add in one end of transmission block Plus transport block cyclic redundancy check, the two ends addition transport block cyclic redundancy check in transmission block.Identified transmission block circulation The addition manner of redundancy check can add transport block cyclic redundancy check in one end of transmission block, or at the two ends of transmission block Addition transport block cyclic redundancy check.

In at least one embodiment of the present invention, the transmission equipment determines the addition side of transport block cyclic redundancy check Formula include it is following one or more：

First way：The transmission equipment obtains pre-defined transport block cyclic redundancy check by way of static state Addition manner, and the transport block cyclic redundancy check that will be obtained addition manner as identified transmission block cyclic redundancy school The addition manner tested.For example, the addition manner of transport block cyclic redundancy check is pre-defined in the protocol, for example, the agreement It is wireless 5G standard agreements etc..

The second way：The transmission equipment determines biography according to communication scheduling strategy from the first database for pre-setting The defeated piece of addition manner of CRC, addition of first database comprising at least one transport block cyclic redundancy check Mode.The communication scheduling strategy includes, but are not limited to：Length according to transmission block determines the addition side of CRC Formula or addition manner of CRC etc. is determined according to the error probability of transmission block.

The third mode：The transmission equipment receives the transmission block of the receiving device selection that the receiving device sends The addition manner of CRC, and the addition manner of the transport block cyclic redundancy check selected according to the receiving device is true Determine the addition manner of transport block cyclic redundancy check.

The receiving device by signal the transmission equipment its select transport block cyclic redundancy check addition Mode, the signaling issue mode include it is following one or more：Dynamic is issued, is semi-statically configured transmitting signaling downwards.

The addition manner of the transport block cyclic redundancy check that the transmission equipment directly can select the receiving device As the addition manner of identified transport block cyclic redundancy check.The transmission equipment can also select the receiving device Transport block cyclic redundancy check addition manner as reference, and communication scheduling strategy etc. is combined, from the of preset configuration The addition manner of transport block cyclic redundancy check is determined in one database.

In at least one embodiment of the present invention, when using the second way or the third mode, according to communication Scheduling strategy determines after the addition manner of the CRC of transmission block from the first database of preset configuration, or in root According to the addition manner of the selected transport block cyclic redundancy check of the receiving device, from the first database of preset configuration really Determine after the addition manner of transport block cyclic redundancy check, the transmission equipment sends semi-static configuration information and set to the reception It is standby, so that the receiving device determines the addition manner of transport block cyclic redundancy check from the second database being pre-configured with； Or the transmission equipment is by sending dynamic signaling or control information to the receiving device, so that the receiving device is from pre- The addition manner of transport block cyclic redundancy check is determined in the second database for first configuring, second database includes at least one Plant the addition manner of transport block cyclic redundancy check.

The semi-static configuration information includes the addition side of transport block cyclic redundancy check determined by the transmission equipment The information of formula.The dynamic signaling or control information include transport block cyclic redundancy check determined by the transmission equipment The information of addition manner.The transport block cyclic redundancy check that the receiving device determines from the second database being pre-configured with Addition manner is identical with the addition manner of the transport block cyclic redundancy check that the transmission equipment determines, so described transmission equipment With the receiving device to the addition manner of the CRC of the transmission block of the transmission block and/or downlink data of upstream data Both sides reach an agreement, and are processed with to upstream data and/or downlink data.

S11, transmission equipment addition manner of transport block cyclic redundancy check according to determined by determines that transmission block is followed The length of ring redundancy check.

In at least one embodiment of the present invention, the transmission equipment obtains the length of transmission block, when the length of transmission block Degree is less than or equal to the first preset value, and the addition manner of identified transport block cyclic redundancy check is the one of transmission block During the addition transport block cyclic redundancy check of end, the transmission equipment determines that the length of the transport block cyclic redundancy check is first Preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16,24 etc., certainly Can be other numerical value.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the transmission equipment determines the transmission block cyclic redundancy when transport block cyclic redundancy check is added in one end of transmission block The length of verification is the second preset length, and second preset length is more than first preset length.Wherein, described second is pre- If the possibility value of length is 24,32,48 etc., naturally it is also possible to be other numerical value.For example, when first preset length When value is 16, the value of second preset length is 24,32,48 etc..

In at least one embodiment of the present invention, the transmission equipment obtains the length of transmission block, when the length of transmission block Degree is less than or equal to first preset value, and the addition manner of identified transport block cyclic redundancy check is in transmission block One end addition transport block cyclic redundancy check when, the transmission equipment determines that the length of the transport block cyclic redundancy check is First preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16,24 etc. Deng, naturally it is also possible to it is other numerical value.Transmission block so can be reduced by increasing the defeated piece of length of CRC False alarm rate, improves the robustness of system.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that, when transport block cyclic redundancy check is added at the two ends of transmission block, the transmission equipment determines to distinguish at the two ends of transmission block Add the first transport block cyclic redundancy check and the second transport block cyclic redundancy check, and the first transmission block cyclic redundancy school The length tested is more than first preset length with the length sum of second transport block cyclic redundancy check.Can so lead to Crossing increases the length and the defeated piece of number of CRC of defeated piece of CRC and reduces the false alarm rate of transmission block, improves The robustness of system.

As shown in Fig. 2 when first transport block cyclic redundancy check is located at the head end of transmission block, second transmission Block CRC is located at the tail end of transmission block.When first transport block cyclic redundancy check is located at the tail end of transmission block When, second transport block cyclic redundancy check is located at the head end of transmission block.The length of first transport block cyclic redundancy check Degree can be with identical with the length of second transport block cyclic redundancy check, it is also possible to different.

S12, the transmission equipment is based on the length of the transport block cyclic redundancy check, calculates transmission block cyclic redundancy school Test bit, and using the transport block cyclic redundancy check bit as transmission block a part.

In at least one embodiment of the present invention, the transmission equipment is based on the length of the transport block cyclic redundancy check Degree, and according to the generator polynomial of check bit, transport block cyclic redundancy check bit is calculated, by the transmission block cyclic redundancy Check bit is transmitted as a part for transmission block.The generation method of the transport block cyclic redundancy check bit can be with LTE is identical, it is also possible to different from LTE.It is herein prior art, the present invention is no longer described in detail.

It should be noted that：The transmission block of length computation first circulation based on first transport block cyclic redundancy check is superfluous The calculation of remaining check bit and the transmission block of length computation second based on second transport block cyclic redundancy check are circulated The calculation of redundancy check bits include it is following one or more：

The first transport block cyclic redundancy check bit or institute are calculated in order since first bit of transmission block State the second transport block cyclic redundancy check bit.For example, as shown in figure 3, the bit data of a transmission block be followed successively by B1, B2、…、BN.The first transport block cyclic redundancy check bit or institute are calculated in order since first bit of transmission block The second transport block cyclic redundancy check bit is stated, the first transport block cyclic redundancy check ratio is calculated to BN as since B1 Special or described second transport block cyclic redundancy check bit.

Calculated in reverse order since last bit of transmission block the first transport block cyclic redundancy check bit or The second transport block cyclic redundancy check bit.For example, bit data for transmission block be B1, B2 ..., BN.From transmission First bit of block starts to calculate the first transport block cyclic redundancy check bit in reverse order or second transmission block is followed Ring redundancy check bits, the first transport block cyclic redundancy check bit or second biography are calculated as since BN to B1 Defeated piece of cyclic redundancy check bits.

Preferably, the transmission equipment calculates first transmission block and follows in order since first bit of transmission block Ring redundancy check bits and the second transport block cyclic redundancy check bit.Calculating transmission block cyclic redundancy can so be reduced The complexity of check bit.

Preferably, the transmission equipment calculates first transmission block and follows in order since first bit of transmission block Ring redundancy check bits, calculate second transport block cyclic redundancy check in reverse order since last bit of transmission block Bit.Or the transmission equipment calculates the second transmission block cyclic redundancy in order since first bit of transmission block Check bit, calculates the first transport block cyclic redundancy check bit in reverse order since last bit of transmission block. So can be with the robustness of lifting system, and without increasing the memory buffers area of the transmitting equipment and the receiving device.

S13, the receiving device is processed the transmission block comprising the transport block cyclic redundancy check bit, and will Data is activation after treatment gives the receiving device.

In at least one embodiment of the present invention, the transmission block comprising the transport block cyclic redundancy check bit is entered The processing method of row treatment can be identical with LTE, it is also possible to different from LTE.It is herein prior art, the present invention is no longer described in detail.

Preferably, the transmission equipment receives the downlink data that the receiving device sends, and based on identified transmission The addition manner of block CRC is verified to the transmission block of downlink data.

Present invention determine that the addition manner of transmission block TB cyclic redundancy check (CRC)s；Circulated according to identified transmission block superfluous The addition manner of remaining verification determines the length of transport block cyclic redundancy check；Length based on the transport block cyclic redundancy check Degree, calculates transport block cyclic redundancy check bit.The present invention can lift efficiency of transmission, improve the robustness of system.

As shown in figure 4, being the flow chart of the second preferred embodiment of data transmission method of the present invention.According to different need Ask, the order of step can change in the flow chart, some steps can be omitted.

S20, the receiving device receives the data that the transmission equipment sends.

S21, the receiving device determines the addition manner of transmission block TB cyclic redundancy check (CRC)s.

In at least one embodiment of the present invention, the receiving device determines the addition side of transport block cyclic redundancy check Formula include it is following one or more：

The addition manner of pre-defined transport block cyclic redundancy check is obtained by way of static state；

The semi-static configuration information that the transmission equipment sends is received, and is matched somebody with somebody from advance according to the semi-static configuration information The addition manner of transport block cyclic redundancy check is determined in the second database put；

S22, receiving device addition manner of transport block cyclic redundancy check according to determined by determines that transmission block is followed The length of ring redundancy check.

In at least one embodiment of the present invention, the receiving device obtains the length of transmission block, when the length of transmission block Degree is less than or equal to the first preset value, and the addition manner of identified transport block cyclic redundancy check is the one of transmission block During the addition transport block cyclic redundancy check of end, the receiving device determines that the length of the transport block cyclic redundancy check is first Preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16,24 etc., certainly Can be other numerical value.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the receiving device determines the transmission block cyclic redundancy when transport block cyclic redundancy check is added in one end of transmission block The length of verification is the second preset length, and second preset length is more than first preset length.Wherein, described second is pre- If the possibility value of length is 24,32,48 etc., naturally it is also possible to be other numerical value.For example, when first preset length When value is 16, the value of second preset length is 24,32,48 etc..

In at least one embodiment of the present invention, the receiving device obtains the length of transmission block, when the length of transmission block Degree is less than or equal to first preset value, and the addition manner of identified transport block cyclic redundancy check is in transmission block One end addition transport block cyclic redundancy check when, the receiving device determines that the length of the transport block cyclic redundancy check is First preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16,24 etc. Deng, naturally it is also possible to it is other numerical value.Transmission block so can be reduced by increasing the defeated piece of length of CRC False alarm rate, improves the robustness of system.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that, when transport block cyclic redundancy check is added at the two ends of transmission block, the receiving device determines to distinguish at the two ends of transmission block Add the first transport block cyclic redundancy check and the second transport block cyclic redundancy check, and the first transmission block cyclic redundancy school The length tested is more than first preset length with the length sum of second transport block cyclic redundancy check.Can so lead to Crossing increases the length and the defeated piece of number of CRC of defeated piece of CRC and reduces the false alarm rate of transmission block, improves The robustness of system.

S23, the receiving device is based on the length of the transport block cyclic redundancy check, to the transmission block in the data Cyclic redundancy check bits are verified.

In at least one embodiment of the present invention, the receiving device is based on the length of the transport block cyclic redundancy check Degree, and according to the generator polynomial of check bit, transport block cyclic redundancy check bit is verified.The transmission block is followed The method of calibration of ring redundancy check bits can be identical with LTE, it is also possible to different from LTE.It is herein prior art, the present invention is not Describe in detail again.

It should be noted that：The transmission block of length check first circulation based on first transport block cyclic redundancy check is superfluous The verification mode of remaining check bit and the transmission block of length check second based on second transport block cyclic redundancy check are circulated The verification mode of redundancy check bits include it is following one or more：

The first transport block cyclic redundancy check bit or institute are verified in order since first bit of transmission block State the second transport block cyclic redundancy check bit.For example, as shown in figure 3, the bit data of a transmission block be followed successively by B1, B2、…、BN.The first transport block cyclic redundancy check bit or institute are verified in order since first bit of transmission block The second transport block cyclic redundancy check bit is stated, the first transport block cyclic redundancy check ratio is verified to BN as since B1 Special or described second transport block cyclic redundancy check bit.

Verified in reverse order since last bit of transmission block the first transport block cyclic redundancy check bit or The second transport block cyclic redundancy check bit.For example, bit data for transmission block be B1, B2 ..., BN.From transmission First bit of block starts to verify the first transport block cyclic redundancy check bit in reverse order or second transmission block is followed Ring redundancy check bits, the first transport block cyclic redundancy check bit or second biography are verified as since BN to B1 Defeated piece of cyclic redundancy check bits.

Preferably, the receiving device verifies first transmission block and follows in order since first bit of transmission block Ring redundancy check bits and the second transport block cyclic redundancy check bit.Calculating transmission block cyclic redundancy can so be reduced The complexity of check bit.

Preferably, the receiving device verifies first transmission block and follows in order since first bit of transmission block Ring redundancy check bits, verify second transport block cyclic redundancy check in reverse order since last bit of transmission block Bit.Or the receiving device verifies the second transmission block cyclic redundancy in order since first bit of transmission block Check bit, verifies the first transport block cyclic redundancy check bit in reverse order since last bit of transmission block. So can be with the robustness of lifting system, and without increasing the memory buffers area of the transmitting equipment and the receiving device.

S24, when transport block cyclic redundancy check bit check is correct, the receiving device obtains the biography in the data Defeated piece.

In at least one embodiment of the present invention, when the transport block cyclic redundancy check bit check in the data just When really, the receiving device obtains the transmission block in the data；When the transport block cyclic redundancy check bit in the data When verifying incorrect, the receiving device does not obtain the transmission block in the data.

It should be noted that being circulated comprising the first transport block cyclic redundancy check bit and the second transmission block in the data Redundancy check bits, only to the first transport block cyclic redundancy check bit and the second transport block cyclic redundancy check bit all schools Test correct, just can determine that transport block cyclic redundancy check bit check is correct.

Preferably, the addition manner of receiving device transport block cyclic redundancy check based on determined by is to downlink data In transmission block processed, and the downlink data after treatment is sent to the receiving device.

The present invention receives the data that transmission equipment sends；Determine the addition manner of transmission block TB cyclic redundancy check (CRC)s；Root The length of transport block cyclic redundancy check is determined according to the addition manner of identified transport block cyclic redundancy check；Based on the biography The defeated piece of length of CRC, verifies to the transport block cyclic redundancy check bit in the data；When the biography When defeated piece of cyclic redundancy check bits verification is correct, the transmission block in the data is obtained.The present invention can lift efficiency of transmission, carry The robustness of system high.

As shown in figure 5, the functional block diagram of the first preferred embodiment of data transmission device of the present invention.The data transfer Device 11 includes determining module 100, sending module 101, computing module 102, processing module 103 and receiver module 104.The present invention Alleged module refers to that a kind of performed by the processing equipment of base station and can complete the series of computation of fixing function Machine program segment, its storage is in the storage device of base station.In the present embodiment, the function on each module is by follow-up implementation Described in detail in example.

The determining module 100 determines the addition manner of transmission block TB cyclic redundancy check (CRC)s.

In at least one embodiment of the present invention, the determining module 100 determines adding for transport block cyclic redundancy check Add mode include it is following one or more：

First way：The determining module 100 obtains pre-defined transmission block cyclic redundancy by way of static state The addition manner of verification, and the addition manner of the transport block cyclic redundancy check that will be obtained is superfluous as the circulation of identified transmission block The addition manner of remaining verification.For example, the addition manner of transport block cyclic redundancy check is pre-defined in the protocol, for example, described Agreement is wireless 5G standard agreements etc..

The second way：The determining module 100 is true from the first database for pre-setting according to communication scheduling strategy Determine the addition manner of transport block cyclic redundancy check, first database includes at least one transport block cyclic redundancy check Addition manner.The communication scheduling strategy includes, but are not limited to：Length according to transmission block determines the addition of CRC Mode or addition manner of CRC etc. is determined according to the error probability of transmission block.

The third mode：The determining module 100 receives the biography of the receiving device selection that the receiving device sends The defeated piece of addition manner of CRC, and according to the receiving device select transport block cyclic redundancy check addition side Formula determines the addition manner of transport block cyclic redundancy check.

The addition side of the transport block cyclic redundancy check that the determining module 100 directly can select the receiving device Formula as identified transport block cyclic redundancy check addition manner.The determining module 100 can also set the reception The addition manner of the transport block cyclic redundancy check of alternative combines communication scheduling strategy etc. as reference, from pre- establishing The addition manner of transport block cyclic redundancy check is determined in the first database put.

In at least one embodiment of the present invention, when using the second way or the third mode, according to communication Scheduling strategy determines after the addition manner of the CRC of transmission block from the first database of preset configuration, or in root According to the addition manner of the selected transport block cyclic redundancy check of the receiving device, from the first database of preset configuration really Determine after the addition manner of transport block cyclic redundancy check, the sending module 101 sends semi-static configuration information and connect to described Receiving unit, so that the receiving device determines the addition side of transport block cyclic redundancy check from the second database being pre-configured with Formula；Or the sending module 101 is by sending dynamic signaling or control information to the receiving device, so that the reception sets The standby addition manner that transport block cyclic redundancy check is determined from the second database being pre-configured with, second database is included The addition manner of at least one transport block cyclic redundancy check.

The determining module 100 determines that transmission block is circulated according to the addition manner of identified transport block cyclic redundancy check The length of redundancy check.

In at least one embodiment of the present invention, the determining module 100 obtains the length of transmission block, when transmission block Length is less than or equal to the first preset value, and the addition manner of identified transport block cyclic redundancy check is in transmission block During the addition transport block cyclic redundancy check of one end, the determining module 100 determines the length of the transport block cyclic redundancy check It is the first preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16,24 etc., Can certainly be other numerical value.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that, when transport block cyclic redundancy check is added in one end of transmission block, the determining module 100 determines the transmission block circulation The length of redundancy check is the second preset length, and second preset length is more than first preset length.Wherein, described The possibility value of two preset lengths is 24,32,48 etc., naturally it is also possible to be other numerical value.For example, when the described first default length When the value of degree is 16, the value of second preset length is 24,32,48 etc..

In at least one embodiment of the present invention, the determining module 100 obtains the length of transmission block, when transmission block Length is less than or equal to first preset value, and the addition manner of identified transport block cyclic redundancy check is in transmission During one end addition transport block cyclic redundancy check of block, the determining module 100 determines the transport block cyclic redundancy check Length is first preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16th, 24 etc., naturally it is also possible to be other numerical value.Biography so can be reduced by increasing the defeated piece of length of CRC Defeated piece of false alarm rate, improves the robustness of system.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the determining module 100 is determined at the two ends of transmission block when transport block cyclic redundancy check is added at the two ends of transmission block The first transport block cyclic redundancy check and the second transport block cyclic redundancy check are added respectively, and first transmission block circulation is superfluous The length of remaining verification is more than first preset length with the length sum of second transport block cyclic redundancy check.So may be used With by the false alarm rate for increasing the length and the defeated piece of number of CRC of defeated piece of CRC to reduce transmission block, The robustness of raising system.

The computing module 102 is based on the length of the transport block cyclic redundancy check, calculates transmission block cyclic redundancy school Test bit, and using the transport block cyclic redundancy check bit as transmission block a part.

In at least one embodiment of the present invention, the computing module 102 is based on the transport block cyclic redundancy check Length, and according to the generator polynomial of check bit, transport block cyclic redundancy check bit is calculated, by transmission block circulation Redundancy check bits are transmitted as a part for transmission block.The generation method of the transport block cyclic redundancy check bit can With identical with LTE, it is also possible to different from LTE.It is herein prior art, the present invention is no longer described in detail.

The first transport block cyclic redundancy check bit or institute are calculated in order since first bit of transmission block State the second transport block cyclic redundancy check bit.

Calculated in reverse order since last bit of transmission block the first transport block cyclic redundancy check bit or The second transport block cyclic redundancy check bit.Preferably, the computing module 102 is since first bit of transmission block The first transport block cyclic redundancy check bit and the second transport block cyclic redundancy check bit are calculated in order.So The complexity for calculating transport block cyclic redundancy check bit can be reduced.

Preferably, the computing module 102 calculates first transmission in order since first bit of transmission block Block cyclic redundancy check bits, calculate the second transmission block cyclic redundancy in reverse order since last bit of transmission block Check bit.Or the computing module 102 calculates second transmission block in order since first bit of transmission block Cyclic redundancy check bits, calculate the first transmission block cyclic redundancy school in reverse order since last bit of transmission block Test bit.So can be with the robustness of lifting system, and without increasing the storage of the transmitting equipment and the receiving device Buffer area.

103 pairs of transmission blocks comprising the transport block cyclic redundancy check bit of the processing module are processed, and will Data is activation after treatment gives the receiving device.

Preferably, the receiver module 104 receives the downlink data that the receiving device sends, and based on identified biography The defeated piece of addition manner of CRC is verified to the transmission block of downlink data.

As shown in fig. 6, the functional block diagram of the second preferred embodiment of data transmission device of the present invention.The data transfer Device 21 includes mode determining module 201, length determination modul 202, correction verification module 203, acquisition module 204, data is activation mould Block 205.Module alleged by the present invention refers to that a kind of performed by the processor of terminal device and can complete to fix work( The series of computation machine program segment of energy, its storage is in the memory of terminal device.In the present embodiment, on the work(of each module To can be described in detail in follow-up embodiment.

The data reception module 200 receives the data that the transmission equipment sends.

The mode determining module 201 determines the addition manner of transmission block TB cyclic redundancy check (CRC)s.

In at least one embodiment of the present invention, the mode determining module 201 determines transport block cyclic redundancy check Addition manner include it is following one or more：

The length determination modul 202 determines transmission block according to the addition manner of identified transport block cyclic redundancy check The length of CRC.

In at least one embodiment of the present invention, the length determination modul 202 obtains the length of transmission block, works as transmission The length of block is less than or equal to the first preset value, and the addition manner of identified transport block cyclic redundancy check is in transmission During one end addition transport block cyclic redundancy check of block, the length determination modul 202 determines the transmission block cyclic redundancy school The length tested is the first preset length.Wherein described first preset value is more than 0.The possibility value of first preset length is 16th, 24 etc., naturally it is also possible to be other numerical value.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the length determination modul 202 determines the transmission block when transport block cyclic redundancy check is added in one end of transmission block The length of CRC is the second preset length, and second preset length is more than first preset length.Wherein, institute The possibility value for stating the second preset length is 24,32,48 etc., naturally it is also possible to be other numerical value.

In at least one embodiment of the present invention, the length determination modul 202 obtains the length of transmission block, works as transmission The length of block be less than or equal to first preset value, and identified transport block cyclic redundancy check addition manner be During one end addition transport block cyclic redundancy check of transmission block, the length determination modul 202 determines that the transmission block circulation is superfluous The length of remaining verification is first preset length.Wherein described first preset value is more than 0.The possibility of first preset length Value is 16,24 etc., naturally it is also possible to be other numerical value.So can by increase the defeated piece of length of CRC come The false alarm rate of transmission block is reduced, the robustness of system is improved.

When transmission block length be more than first preset value, and identified transport block cyclic redundancy check addition side Formula is that the length determination modul 202 is determined in transmission block when transport block cyclic redundancy check is added at the two ends of transmission block The first transport block cyclic redundancy check and the second transport block cyclic redundancy check are added in two ends respectively, and first transmission block is followed The length of ring redundancy check is more than first preset length with the length sum of second transport block cyclic redundancy check.This Sample can be by the void that increases the length and the defeated piece of number of CRC of defeated piece of CRC to reduce transmission block Alert rate, improves the robustness of system.

The correction verification module 203 is based on the length of the transport block cyclic redundancy check, to the transmission block in the data Cyclic redundancy check bits are verified.

In at least one embodiment of the present invention, the correction verification module 203 is based on the transport block cyclic redundancy check Length, and according to the generator polynomial of check bit, transport block cyclic redundancy check bit is verified.To the transmission The method of calibration of block cyclic redundancy check bits can be identical with LTE, it is also possible to different from LTE.It is herein prior art, this hair It is bright no longer to describe in detail.

The first transport block cyclic redundancy check bit or institute are verified in order since first bit of transmission block State the second transport block cyclic redundancy check bit.

Verified in reverse order since last bit of transmission block the first transport block cyclic redundancy check bit or The second transport block cyclic redundancy check bit.

Preferably, the correction verification module 203 verifies first transmission in order since first bit of transmission block Block cyclic redundancy check bits and the second transport block cyclic redundancy check bit.Calculating transmission block circulation can so be reduced The complexity of redundancy check bits.

Preferably, the correction verification module 203 verifies first transmission in order since first bit of transmission block Block cyclic redundancy check bits, verify the second transmission block cyclic redundancy in reverse order since last bit of transmission block Check bit.Or the correction verification module 203 verifies second transmission block in order since first bit of transmission block Cyclic redundancy check bits, verify the first transmission block cyclic redundancy school in reverse order since last bit of transmission block Test bit.So can be with the robustness of lifting system, and without increasing the storage of the transmitting equipment and the receiving device Buffer area.

When transport block cyclic redundancy check bit check is correct, the acquisition module 204 obtains the biography in the data Defeated piece.

In at least one embodiment of the present invention, when the transport block cyclic redundancy check bit check in the data just When really, the acquisition module 204 obtains the transmission block in the data；When the transport block cyclic redundancy check ratio in the data When spy's verification is incorrect, the acquisition module 204 does not obtain the transmission block in the data.

Preferably, the addition manner pair of the transport block cyclic redundancy check based on determined by of the data transmission blocks 205 Transmission block in downlink data is processed, and the downlink data after treatment is sent into the receiving device.

The above-mentioned integrated unit realized in the form of software function module, can store and be deposited in an embodied on computer readable In storage media.Above-mentioned software function module storage is in a storage medium, including some instructions are used to so that a computer Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each The part steps of embodiment methods described.

As shown in fig. 7, Fig. 7 is the structural representation of the transmission equipment of the preferred embodiment that the present invention realizes data transmission method Figure.The transmission equipment 1 includes, but are not limited to：Storage device 12 and processing equipment 13.The transmission equipment 1 can also include Other elements.

The storage device 12 is used to store the program and various data of a kind of data transmission method, and is set in the transmission High speed is realized in standby 1 running, the access of program or data is automatically completed.The storage device 12 can be transmission equipment 1 external memory storage and/or internal storage.Further, the storage device 12 can be no material object in integrated circuit The circuit with store function of form, such as RAM (Random-Access Memory, random access memory), FIFO (First In First Out) etc..Or, the storage device 12 can also be the memory with physical form, such as interior Deposit bar, TF cards (Trans-flash Card) etc..

The processing equipment 13, also known as central processing unit (CPU, Central Processing Unit), is one piece of super large The integrated circuit of scale, is the arithmetic core (Core) and control core (Control Unit) of transmission equipment 1.The treatment sets Standby 13 operating systems that can perform the transmission equipment 1 and types of applications program, the program code of installation etc., for example data are passed Defeated device 11.

With reference to Fig. 1, the storage device 12 in the transmission equipment 1 stores multiple instruction to realize a kind of data transfer Method, the processing equipment 13 can perform the multiple instruction so as to realize：Determine adding for transmission block TB cyclic redundancy check (CRC)s Add mode；Addition manner according to identified transport block cyclic redundancy check determines the length of transport block cyclic redundancy check； Based on the length of the transport block cyclic redundancy check, transport block cyclic redundancy check bit is calculated, and the transmission block is followed Ring redundancy check bits as transmission block a part；Transmission block comprising the transport block cyclic redundancy check bit is carried out Treatment, and by the data is activation after treatment to receiving device.

According to the preferred embodiment of the present invention, determined to pass from the first database of preset configuration according to communication scheduling strategy After the addition manner of defeated piece of CRC, or according to the selected transmission block cyclic redundancy school of the receiving device The addition manner tested, from the first database of preset configuration after the addition manner of determination transport block cyclic redundancy check, institute The multiple instruction for stating the execution of processing equipment 13 also includes：

Specifically, the processing equipment 13 refers to phase in Fig. 1 correspondence embodiments to the concrete methods of realizing of above-mentioned instruction The description of step is closed, be will not be described here.

As shown in fig. 7, Fig. 7 is the structural representation of the terminal device of the preferred embodiment that the present invention realizes data transmission method Figure.The receiving device 2 includes, but are not limited to：Memory 22 and processor 23.The receiving device 2 can also include other Element.

The memory 22 is used to store the program and various data of a kind of data transmission method, and in the receiving device High speed is realized in 2 runnings, the access of program or data is automatically completed.The memory 22 can be receiving device 2 External memory storage and/or internal storage.Further, the memory 22 can not have physical form in integrated circuit Circuit with store function, such as RAM (Random-Access Memory, random access memory), FIFO (First In First Out) etc..Or, the memory 22 can also be the memory with physical form, such as memory bar, TF cards (Trans-flash Card) etc..

The processor 23, also known as central processing unit (CPU, Central Processing Unit), is one piece of super large rule The integrated circuit of mould, is the arithmetic core (Core) and control core (Control Unit) of receiving device 2.The processor 23 The operating system of the executable receiving device 2 and types of applications program, the program code of installation etc., such as data transfer dress Put 21.

With reference to Fig. 4, the memory 22 in the receiving device 2 stores multiple instruction to realize a kind of transmission side data Method, the processor 23 can perform the multiple instruction so as to realize：Receive the data that transmission equipment sends；Determine transmission block TB The addition manner of cyclic redundancy check (CRC)；Addition manner according to identified transport block cyclic redundancy check determines transmission block The length of CRC；Based on the length of the transport block cyclic redundancy check, to the transmission block circulation in the data Redundancy check bits are verified；When the transport block cyclic redundancy check bit check is correct, in the acquisition data Transmission block.

According to the preferred embodiment of the present invention, before the data that transmission equipment sends are received, the processor 23 performs institute Stating multiple instruction also includes：

In several embodiments provided by the present invention, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the module Divide, only a kind of division of logic function there can be other dividing mode when actually realizing.

The module that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as module The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of module therein can be according to the actual needs selected to realize the mesh of this embodiment scheme 's.

In addition, during each functional module in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of software function module to realize.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.The right that any attached associated diagram mark in claim should not be considered as involved by limitation will Ask.Furthermore, it is to be understood that " including " word is not excluded for other units or step, odd number is not excluded for plural number.Stated in system claims Multiple units or device can also be realized by software or hardware by a unit or device.Second grade word is used for table Show title, and be not offered as any specific order.

Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although reference Preferred embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to of the invention Technical scheme is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.

Claims

1. a kind of data transmission method, is applied to transmission equipment, it is characterised in that methods described includes：

Determine the addition manner of transport block cyclic redundancy check；

Based on the length of the transport block cyclic redundancy check, transport block cyclic redundancy check bit is calculated, and by the transmission Block cyclic redundancy check bits as transmission block a part；

Transmission block comprising the transport block cyclic redundancy check bit is processed, and the data is activation after treatment is connect Receiving unit.

2. data transmission method as claimed in claim 1, it is characterised in that the determination transport block cyclic redundancy check adds Add mode includes：

The addition side of the CRC of transmission block is determined from the first database of preset configuration according to communication scheduling strategy Formula；Or

The addition manner of the selected transport block cyclic redundancy check that the receiving device sends is received, and according to the reception The addition manner of the selected transport block cyclic redundancy check of equipment, determines that transmission block is followed from the first database being pre-configured with The addition manner of ring redundancy check, addition manner of first database comprising at least one transport block cyclic redundancy check.

3. data transmission method as claimed in claim 2, it is characterised in that according to communication scheduling strategy from preset configuration In first database after the addition manner of the CRC of determination transmission block, or according to selected by the receiving device Transport block cyclic redundancy check addition manner, determine transport block cyclic redundancy check from the first database of preset configuration Addition manner after, methods described also includes：

Semi-static configuration information is sent to the receiving device so that the receiving device is from the second database being pre-configured with Determine the addition manner of transport block cyclic redundancy check；Or

By sending dynamic signaling or control information to the receiving device so that the receiving device is from for being pre-configured with The addition manner of transport block cyclic redundancy check is determined in two databases, second database includes at least one transmission block and follows The addition manner of ring redundancy check.

4. data transmission method as claimed in claim 1, it is characterised in that identified transport block cyclic redundancy check adds Add mode includes：Transport block cyclic redundancy check is added in one end of transmission block；Or transmission block two ends addition transmission block follow Ring redundancy check.

5. data transmission method as claimed in claim 4, it is characterised in that transmission block cyclic redundancy determined by the basis The addition manner of verification determines that the length of transport block cyclic redundancy check includes：

When transmission block length be less than or equal to the first preset value, and identified transport block cyclic redundancy check addition side Formula is that the length for determining the transport block cyclic redundancy check is when transport block cyclic redundancy check is added in one end of transmission block First preset length；

When the length of transmission block is more than first preset value, and the addition manner of identified transport block cyclic redundancy check is When transport block cyclic redundancy check is added in one end of transmission block, the length for determining the transport block cyclic redundancy check is second Preset length, second preset length is more than first preset length；Or

When the length of transmission block is more than first preset value, and the addition manner of identified transport block cyclic redundancy check is When transport block cyclic redundancy check is added at the two ends of transmission block, it is determined that add the first transmission block respectively at the two ends of transmission block following Ring redundancy check and the second transport block cyclic redundancy check, and the length of first transport block cyclic redundancy check and described The length sum of two transport block cyclic redundancy checks is more than first preset length.

6. data transmission method as described in claim 5, characterized in that, being based on the first transmission block cyclic redundancy The calculation of length computation the first transport block cyclic redundancy check bit of verification and based on second transmission block circulate it is superfluous The calculation of length computation the second transport block cyclic redundancy check bit of remaining verification include it is following one or more：

Calculate the first transport block cyclic redundancy check bit or described in order since first bit of transmission block Two transport block cyclic redundancy check bits；

Calculate the first transport block cyclic redundancy check bit or described in reverse order since last bit of transmission block Second transport block cyclic redundancy check bit.

7. a kind of data transmission method, is applied to receiving device, it is characterised in that methods described includes：

Receive the data that transmission equipment sends；

Determine the addition manner of transport block cyclic redundancy check；

Based on the length of the transport block cyclic redundancy check, the transport block cyclic redundancy check bit in the data is carried out Verification；

8. data transmission method as claimed in claim 7, it is characterised in that the determination transport block cyclic redundancy check adds Add mode include it is following one or more：

Receive the semi-static configuration information that the transmission equipment sends, and according to the semi-static configuration information from being pre-configured with The addition manner of transport block cyclic redundancy check is determined in second database；Or

The dynamic signaling of the transmission equipment transmission or the mode of control information are received, and according to dynamic signaling or control letter The side of breath determines the addition manner of transport block cyclic redundancy check, second database from the second database being pre-configured with Addition manner comprising at least one transport block cyclic redundancy check.

9. data transmission method as claimed in claim 7, characterized in that, receive data that transmission equipment sends it Before, methods described also includes：

The addition manner of selected transport block cyclic redundancy check is notified to the transmission equipment for described by signaling Transmission equipment determines the addition manner of transport block cyclic redundancy check, the signaling issue mode include it is following a kind of or many Kind：Dynamic is issued, is semi-statically configured transmitting signaling downwards.

10. a kind of data transmission device, runs on transmission equipment, it is characterised in that described device includes：

Determining module, the addition manner for determining transport block cyclic redundancy check；

The addition manner that the determining module is additionally operable to the transport block cyclic redundancy check according to determined by determines that transmission block is circulated The length of redundancy check；

Processing module, for processing the transmission block comprising the transport block cyclic redundancy check bit, and by after treatment Data is activation to receiving device.

11. data transmission devices as claimed in claim 10, it is characterised in that the determining module determines that transmission block circulation is superfluous The addition manner of remaining verification includes：

12. data transmission devices as claimed in claim 11, it is characterised in that described device also includes：

Sending module, for determining that the circulation of transmission block is superfluous from the first database of preset configuration according to communication scheduling strategy After the addition manner of remaining verification, or in the addition side according to the selected transport block cyclic redundancy check of the receiving device Formula, determines after the addition manner of transport block cyclic redundancy check from the first database of preset configuration, sends semi-static matching somebody with somebody Confidence is ceased to the receiving device so that the receiving device determines that transmission block circulation is superfluous from the second database being pre-configured with The addition manner of remaining verification；Or

13. data transmission devices as claimed in claim 10, it is characterised in that identified transport block cyclic redundancy check Addition manner includes：Transport block cyclic redundancy check is added in one end of transmission block；Or add transmission block at the two ends of transmission block CRC.

14. data transmission devices as claimed in claim 13, it is characterised in that the determining module is transmitted according to determined by The addition manner of block CRC determines that the length of transport block cyclic redundancy check includes：

15. data transmission devices as described in claim 14, characterized in that, being circulated based on first transmission block superfluous The calculation of length computation the first transport block cyclic redundancy check bit of remaining verification and based on second transmission block circulation The calculation of length computation the second transport block cyclic redundancy check bit of redundancy check include it is following one or more：

A kind of 16. data transmission devices, run on receiving device, it is characterised in that described device includes：

Mode determining module, the addition manner for determining transport block cyclic redundancy check；

The length determination modul, the addition manner for the transport block cyclic redundancy check according to determined by determines that transmission block is followed The length of ring redundancy check；

Correction verification module, it is superfluous to the transmission block circulation in the data for the length based on the transport block cyclic redundancy check Remaining check bit is verified；

Acquisition module, for when the transport block cyclic redundancy check bit check is correct, obtaining the transmission in the data Block.

17. data transmission devices as claimed in claim 16, it is characterised in that the mode determining module determines that transmission block is followed The addition manner of ring redundancy check include it is following one or more：

18. data transmission devices as claimed in claim 16, characterized in that, described device also includes：

Data transmission blocks, for before the data that transmission equipment sends are received, being followed selected transmission block by signaling The addition manner of ring redundancy check is notified to the transmission equipment so that the transmission equipment determines transport block cyclic redundancy check Addition manner, the signaling issue mode include it is following one or more：Dynamic is issued, is semi-statically configured under signaling Hair.