CN102571266A - Method and device for checking cyclic redundancy of transmission block - Google Patents

Method and device for checking cyclic redundancy of transmission block Download PDF

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CN102571266A
CN102571266A CN2011100006396A CN201110000639A CN102571266A CN 102571266 A CN102571266 A CN 102571266A CN 2011100006396 A CN2011100006396 A CN 2011100006396A CN 201110000639 A CN201110000639 A CN 201110000639A CN 102571266 A CN102571266 A CN 102571266A
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crc
transmission block
data
check information
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CN102571266B (en
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贺传峰
王宗杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

本发明实施例提供一种传输块循环冗余校验方法及装置，所述方法包括：接收高层发送的传输块；对所述传输块中的部分数据进行循环冗余校验码CRC计算，得到CRC校验信息；将所述CRC校验信息与所述传输块附着在一起，并将附着所述CRC校验信息的传输块发送给接收端。本发明实施例通过对一个传输块包含的不同数据的重要性不同，在对该传输块的CRC计算时，选择该传输块的其中的一部分重要数据进行CRC计算，减少了由于传输块中不重要数据传输错误造成的不必要重传，降低重传次数，节省网络资源。

Embodiments of the present invention provide a transmission block cyclic redundancy check method and device, the method comprising: receiving a transmission block sent by a high layer; performing cyclic redundancy check code CRC calculation on part of the data in the transmission block to obtain CRC check information: attach the CRC check information to the transport block, and send the transport block attached with the CRC check information to the receiving end. According to the importance of different data contained in a transmission block, in the embodiment of the present invention, when calculating the CRC of the transmission block, some important data in the transmission block are selected for CRC calculation, which reduces the number of unimportant data in the transmission block. Unnecessary retransmissions caused by data transmission errors reduce the number of retransmissions and save network resources.

Description

A kind of method of transport block cyclic redundancy check and device
Technical field
The present invention relates to communication technical field, particularly a kind of method of transport block cyclic redundancy check and device.
Background technology
At WCDMA (WCDMA; Wideband Code Division Multiple Access) in the system; In order to improve message transmission rate, introduced high speed downlink packet access (HSDPA, High SpeedDownlink Packet Access) technology and high speed uplink packet and inserted (High Speed Uplink PacketAccess; HSUPA) technology, said HSDPA and HSUPA are referred to as HSPA.
Through HSPA bearer service data the time; CS voice in the WCDMA system generally are to adopt AMR (AMR, Adaptive Multi-Rate) coding, encode the speech into three substreams; Three substreams are represented the different importance of information in the speech coding; And different mistake tolerances, every substreams need use different service quality (QoS, Quality of Service) to guarantee.In three substreams, A is most important for son stream, and secondly son flows B, and C is least important for son stream.Need higher correctness during son stream A interface transmission aloft.
Because the CS speech business can be carried on the HSPA (CS over HSPA); Adopted mixed automatic repeat request (HARQ among the HSPA; Hybrid Automatic Repeat Request) in this process; ABC three substreams of AMR speech frame just are integrated into together at the PDCP layer, are delivered to physical layer, carry through a transmission block.Physical layer comprises that to this transmission block of A, B, C stream carries out CRC (CRC, Cyclic Redundancy Check) and calculates and append to data block, sends through after the chnnel coding; After receiving terminal carries out channel-decoding, the data block that obtains is carried out that same CRC calculates and compared with additional CRC, if equate; Show to receive correctly that receiving terminal returns affirmation (ACK, Acknowledgement) signal; If it is unequal; Show the reception mistake, receiving terminal returns does not confirm (NACK, Not Acknowledge) signal.Receive ack signal when making a start, just send new data, otherwise resend data packets for transmission last time.
In the existing implementation,, therefore, will cause whole AMR speech frame to retransmit, cause the waste of transfer resource when the CRC check mistake of this transmission block because three substreams of AMR speech frame are incorporated in a transport block transmission in physical layer.
Summary of the invention
The embodiment of the invention provides a kind of method and device of transport block cyclic redundancy check, to solve the number of retransmissions problem of higher of transmission block, saves Internet resources.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of transport block cyclic redundancy check method, and said method comprises:
Receive the high-rise transmission block that sends;
Partial data in the said transmission block is carried out CRC CRC calculate, obtain CRC check information;
With said CRC check information with said transmission block attached to, and will adhere to said CRC check transmission of Information piece and send to receiving terminal.
The embodiment of the invention also provides a kind of transport block cyclic redundancy check method, and said method comprises:
Confirm the size of said transmission block;
Data to receiving are decoded, and obtain a transmission block and a CRC checking information;
If it is pre-conditioned to judge that the size of said transmission block satisfies, then obtain the partial data in the said transmission block;
Said partial data is carried out CRC CRC calculate, obtain the second CRC check information;
If judge that the first CRC check information equates with the second CRC check information, confirm that then transmission is correct, feedback acknowledgment is replied.
The embodiment of the invention provides a kind of method of transport block cyclic redundancy check again, and said method comprises:
Confirm the size of said transmission block;
Data to receiving are decoded, and obtain a transmission block and a CRC checking information;
Satisfy when pre-conditioned if judge the size of said transmission block, then whole transmission block is carried out CRC and calculate, obtain the second CRC check information;
If judge that said second a CRC check information and a CRC checking information are unequal, then obtain the partial data in the said transmission block;
Said partial data is carried out CRC CRC calculate, obtain the 3rd CRC check information;
If judge that the first CRC check information equates with the 3rd CRC check information, confirm that then said transmission is correct, feedback acknowledgment is replied.
Accordingly, the embodiment of the invention provides a kind of device of transport block cyclic redundancy check, and said device comprises:
Receiving element is used to receive the high-rise transmission block that sends;
Verification unit is used for the partial data of said transmission block is carried out CRC CRC calculating, obtains CRC check information;
Adhesion unit, be used for said CRC check information with said transmission block attached to;
Transmitting element is used for sending to receiving terminal with adhering to said CRC check transmission of Information piece.
The embodiment of the invention also provides a kind of transport block cyclic redundancy check device, and said device comprises:
Confirm the unit, confirm the size of said transmission block;
Decoding unit is used for the data that receive are decoded, and obtains a transmission block and a CRC checking information;
Acquiring unit is used for satisfying when pre-conditioned in the size of judging said transmission block, obtains the partial data in the said transmission block;
First verification unit is used for that said partial data is carried out CRC CRC and calculates, and obtains the second CRC check information;
First feedback unit is used for when judging that the first CRC check information equates with the second CRC check information, confirms that transmission is correct, and feedback acknowledgment is replied.
The embodiment of the invention provides a kind of device of transport block cyclic redundancy check again, and said device comprises:
Confirm the unit, be used for confirming the size of said transmission block;
Decoding unit is used for the data that receive are decoded, and obtains a transmission block and a CRC checking information;
First verification unit is used for satisfying when pre-conditioned in the size of judging said transmission block, whole transmission block is carried out CRC calculate, and obtains the second CRC check information;
Acquiring unit is used for obtaining the partial data in the said transmission block judging that said second a CRC check information and a CRC checking information are unequal;
Second verification unit is used for that said partial data is carried out CRC CRC and calculates, and obtains the 3rd CRC check information;
Feedback unit is used for when judging that the said first CRC check information equates with the 3rd CRC check information, confirming that said transmission is correct that feedback acknowledgment is replied.
Can know by the foregoing description; In the embodiment of the invention, different through the importance of different pieces of information that a transmission block is comprised, when the CRC to this transmission block calculates; Select a part of significant data wherein of this transmission block to carry out CRC calculating; Reduced because the unnecessary re-transmission that inessential data transmission fault causes in the transmission block reduces number of retransmissions, saved Internet resources.
Description of drawings
The flow chart of the method for a kind of transport block cyclic redundancy check that Fig. 1 provides for the embodiment of the invention 1;
The flow chart of the method for a kind of transport block cyclic redundancy check that Fig. 2 provides for the embodiment of the invention 2;
The flow chart of the method for a kind of transport block cyclic redundancy check that Fig. 3 provides for the embodiment of the invention 3;
The flow chart of first application example of the method for a kind of transport block cyclic redundancy check that Fig. 4 provides for the embodiment of the invention 4;
The flow chart of second application example of the method for a kind of transport block cyclic redundancy check that Fig. 5 provides for the embodiment of the invention 5;
The structural representation of the device of a kind of transport block cyclic redundancy check that Fig. 6 provides for the embodiment of the invention 1;
The structural representation of the device of a kind of transport block cyclic redundancy check that Fig. 7 provides for the embodiment of the invention 2;
The structural representation of the device of a kind of transport block cyclic redundancy check that Fig. 8 provides for the embodiment of the invention 3.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and execution mode.
See also Fig. 1, the flow chart of the method for a kind of transport block cyclic redundancy check that provides for the embodiment of the invention 1, said method comprises:
101: receive the high-rise transmission block that sends;
Wherein, This high level can be packet data convergence protocol (PDCP, Packet Data ConvergenceProtocol) layer, Radio Link control (RLC, Radio Link Control) layer, medium access control (MAC; Mdium Access Control) layer etc. but is not limited to this.
102: the partial data in the said transmission block is carried out CRC (CRC, cyclicredundancy check code) calculate, obtain CRC check information; Wherein, Partial data in the said transmission block can be the data of some bit numbers with definite starting and ending position; 5 bits that begin such as the original position from said transmission block, 10 bits or 20 are than top grade, the significant data that just carries in this transmission block etc., but be not limited to this.
103: with said CRC check information with said transmission block attached to, and will adhere to said CRC check transmission of Information piece and send to receiving terminal.
In the embodiment of the invention; Importance through different pieces of information that a transmission block is comprised is different; When again this transmission block loaded information being carried out CRC calculating, select a part of significant data in this transmission block to carry out CRC calculating, reduced the re-transmission of the whole transmission block that causes because of the non-significant data error of transmission in the transmission block; Thereby reduced number of retransmissions, saved transfer resource.
Preferably, said method can also comprise: if confirm that data carried by data is AMR (AMR, an Adaptive Multi Rate) speech frame in the said transmission block, then obtain the sub-flow data of A in the said AMR speech frame at least;
Wherein, the sub-flow data of A that obtains at least in the said AMR speech frame comprises: the number of coded bits of calculating said AMR speech frame according to the size of said transmission block; Confirm corresponding codes structure type number according to the number of coded bits of said AMR speech frame; Confirm the bit number of said A stream according to said coding structure style number.For descending, can perhaps strengthen the bit number that dedicated channel E-DCH (Enhanced Dedicated Channel) transmission block table and AMR coded data distribution table can be confirmed said A stream according to high speed downlink shared channel HS-DSCH (HighSpeed Downlink Shared Channel) the transmission block table of storage.For up, can confirm the bit number of said A stream according to strengthening dedicated channel E-DCH (EnhancedDedicated Channel) transmission block table and AMR coded data distribution table, but be not limited to this.
Saidly partial data in the said transmission block is carried out CRC CRC calculate, obtain CRC check information and be: the sub-flow data of said A is carried out CRC CRC calculate, obtain CRC check information.
Wherein, confirm that data carried by data is that AMR AMR speech frame specifically comprises in the said transmission block: data carried by data is the notice of AMR speech frame in the high-rise said transmission block that sends of reception; Confirm that according to said notice data carried by data is the AMR speech frame in the said transmission block.
That is to say; In this embodiment; Carry data instance with HS-DSCH, packet data convergence protocol PDCP layer lumps together ABC three substreams and forms the receiving terminal that a transmission block passes to physical layer, and high-rise simultaneously these data of receiving terminal through indication notice physical layer are the AMR speech frame; The receiving terminal of physical layer is according to transmission block size and AMR (AMR; Adaptive Multi Rate) coded data distribution table (table 1) and HS-DSCH transmission block table (table 2) can be confirmed the bit number of said A stream, and carry out adhering to of CRC bit, and send the said transmission block after adhering to.
Table 1 is at present to the A stream (Class A) of the AMR speech data of various type of codings, the data distribution of B stream Class B and C stream (Class C):
Table 1:AMR coded data distributes
Figure BDA0000042708740000071
One of form that the transmission block that table 2 possibly adopt for HS-DSCH is big or small; Add after PDCP, RLC, the added header of each layer of MAC according to the information bit of various AMR speech codings in the table 1; The data block length that passes to physical layer will be mapped to transmission block according to table 2, and the AMR number of speech frames that therefore passes to physical layer has one-to-one relationship according to the transmission block size shown in block length and the table 2.
Table 2HS-DSCH transmission block form
Figure BDA0000042708740000072
Figure BDA0000042708740000081
In the embodiment of the invention; Importance through different pieces of information that a transmission block is comprised is different; When the CRC to this transmission block calculates, select a part of significant data wherein of this transmission block to carry out CRC calculating, reduced because the unnecessary re-transmission that inessential data transmission fault causes in the transmission block; Reduce number of retransmissions, save Internet resources.
Also see also Fig. 2, the flow chart of a kind of transport block cyclic redundancy check method that provides for the embodiment of the invention 2, said method comprises:
201: the size (TBS, Transport Block Set) of confirming said transmission block;
A kind of definite mode is: directly receive the fast size of said transmission that control channel sends; For descending; Said control channel can comprise: high speed descending sharing channel (HS-DSCH; High SpeedDownlink Shared Channel), HS-DSCH shared control channel (HS-SCCH, Shared ControlChannel for HS-DSCH); For up, said control channel can be to strengthen dedicated channel E-DCH etc.
Another kind of definite mode is: according to the big or small blind Detecting data channel of pre-configured transmission block; Such as; Following behavior example can detect high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH, High SpeedPhysical Downlink Shared Channel) etc.; And the transmission block that blind check is measured is confirmed the size of said transmission block through CRC check.But be not limited to this.
If the transmission block data carried by data is the AMR speech frame, then the big or small blind Detecting data channel according to pre-configured transmission block is specially: the big or small blind Detecting data channel of the transmission block that adopts of the AMR of institute speech frame then.But be not limited to this, can also comprise other definite mode, the embodiment of the invention does not limit.
202: the data to receiving are decoded, and obtain a transmission block and a CRC checking information;
Specifically can decode, obtain a transmission block and a CRC checking information the data that receive from high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH.
201 and 202 do not have sequencing in time, can carry out simultaneously yet, can successively carry out yet.
203:, then obtain the partial data in the said transmission block if it is pre-conditioned to judge that the size of said transmission block satisfies; Wherein, this partial data is the significant data that carries in the transmission block.
Wherein, be the size that satisfies the transmission block of AMR AMR speech frame employing if satisfy pre-conditioned, then obtain the A stream in the said transmission block at least;
204: said partial data is carried out CRC CRC calculate, obtain the second CRC check information; Wherein, said partial data can be the A stream that obtains at least in the said transmission block, but is not limited to this.
205: if judge that the first CRC check information equates with the second CRC check information, confirm that then said transmission is correct, feedback acknowledgment is replied.
Preferably, said method can also comprise: if the judgement first CRC check information and the second CRC check information are unequal, then whole transmission block are carried out CRC and calculate, obtain the 3rd CRC check information;
If judge that said the 3rd CRC check information equates with a CRC checking information, confirm that then transmission is correct, feedback acknowledgment is replied; Otherwise error of transmission is fed back non-affirmation and is replied.
Preferably, said method can also comprise:
Do not satisfy the transmission block size that AMR AMR speech frame is adopted if judge said transmission block size, then whole transmission block is carried out CRC and calculate, obtain the 4th CRC check information;
If judge that said the 4th CRC check information equates with the first CRC check information, confirm that then transmission is correct, feedback acknowledgment is replied; Otherwise, then confirm error of transmission, feed back non-affirmation and reply.
Also see also Fig. 3, the flow chart of the method for a kind of transport block cyclic redundancy check that provides for the embodiment of the invention 3, said method comprises:
301: the size of confirming said transmission block;
302: the data to receiving are decoded, and obtain a transmission block and a CRC checking information;
Wherein, 301 and 302 do not have sequencing in time, can carry out simultaneously yet, can successively carry out yet, and this enforcement does not limit.
303: satisfy when pre-conditioned if judge the size of said transmission block, then whole transmission block is carried out CRC and calculate, obtain the second CRC check information;
304:, then obtain the partial data in the said transmission block if said second a CRC check information of judgement and a CRC checking information are unequal;
305: said partial data is carried out CRC CRC calculate, obtain the 3rd CRC check information;
306: if judge that the first CRC check information equates with the 3rd CRC check information, confirm that then said transmission is correct, feedback acknowledgment is replied.
Preferably, in this embodiment, if judge that it is the size that satisfies the transmission block of AMR AMR speech frame employing that the size of said transmission block satisfies pre-conditioned; The partial data that then obtains in the said transmission block is: obtain the sub-flow data of A in the said transmission block at least; Saidly said partial data is carried out CRC CRC be calculated as: the sub-flow data of said A is carried out CRC CRC calculate, obtain the 3rd CRC check information.
Concrete implementation procedure based on Fig. 2 and Fig. 3 sees Fig. 4 and Fig. 5 for details:
Also see also Fig. 4; First application example of a kind of method for transport block cyclic redundancy check that provides for the embodiment of the invention 4; Among this embodiment; It is pre-conditioned that the size of said transmission block satisfies is example with the size that satisfies the transmission block that AMR AMR speech frame adopts, and what then obtain partial data in the said transmission block is example with what obtain the sub-flow data of A in the said transmission block at least.A kind of processing procedure for receiving terminal is:
401: confirm transmission block size TBS information; Wherein, the mode of confirming said TBS information comprises:
A kind of mode is: can carry by control channel, and like HS-SCCH, E-DPCCH, promptly receiving terminal receives the TBS information of control channel transmission.
Another kind of mode; For HS-SCCH less pattern or E-DPCCH; Because HS-SCCH or E-DPCCH channel do not send when just passing, receiving terminal can detect data channel HS-PDSCH or E-DPDCH according to pre-configured TBS information, and promptly receiving terminal is according to several kinds of TBS information blind Detecting data channel HS-PDSCH or the E-DPDCH of configuration; Judging the TBS that this transmission block uses through verification to CRC; Such as four kinds of TBS of configuration, possibly need four CRC checks, could from check results, confirm the TBS that this transmission block uses.
When having one of the TBS that possibly adopt to equate among the pre-configured TBS with the AMR speech frame; When the TBS that equates at one of TBS that uses these and AMR speech frame to adopt detects the HS-PDSCH channel; When CRC check, need the A stream of the extraction of verification simultaneously and the CRC of whole transmission block; And with data channel in detected CRC compare; As equating that with one of them of the CRC of A stream that extracts and whole data block then the TBS of definite this transmission block detects employed TBS for this.
For example pre-configured TBS comprises four kinds of TBS1, TBS2, TBS3, TBS4; And wherein one of TBS2 and AMR speech frame TBS that possibly adopt equates; Then when using TBS2 that the HS-PDSCH channel is carried out in the blind detection process; When the transmission block that blind check is gone out carries out CRC check, need the A stream that verification simultaneously extracts and the CRC of whole transmission block, and with data channel in detected CRC compare; As equating that with one of them of the CRC of A stream that extracts and whole data block then the TBS of definite this transmission block detects employed TBS2 for this.
402: the data to receiving are decoded, and obtain transmission block and corresponding C RC0 checking information; If be descending, then receive the data of HS-PDSCH, if up, receive the data of E-DCH etc.
Wherein, 401 and 302 do not have sequencing in time, can carry out simultaneously, can successively carry out yet, and this enforcement does not limit.
403: whether the size of judging said transmission block satisfies the size of the transmission block that AMR AMR speech frame adopts, if satisfy (one of TBS that to be said TBS possibly adopt with the AMR speech frame equates), then carries out 304; Otherwise, carry out 309;
404: from transmit soon, extract A stream according to TBS;
405: said A stream is carried out CRC CRC calculate, obtain the CRC1 check information;
406: judge whether said CRC1 equates with CRC0,, then carry out 407 if equate; Otherwise, carry out 409;
407, confirm that said transmission is correct, feedback acknowledgment is replied;
408: whole transmission block is carried out CRC calculate, obtain the CRC2 check information;
409: judge whether said CRC2 equates with CRC0,, then carry out 407 if equate; Otherwise, carry out 410
410: confirm that said transmission is correct, feedback acknowledgment is replied.
In this embodiment, judge whether the size of said transmission block satisfies the size of the transmission block of AMR AMR speech frame employing, if satisfy; Earlier said A stream is carried out CRC CRC and calculate, and whether the CRC that relatively calculates equate with the CRC that receives, if equal; Reply with regard to feedback acknowledgment, otherwise, the CRC of whole transmission block calculated again; And whether the CRC that relatively calculates whole transmission block equate with the CRC that receives, if equate, replys with regard to feedback acknowledgment; Otherwise, feed back non-affirmation and reply.If do not satisfy, then calculatings need be carried out CRC to whole transmission block and calculates, and whether the CRC that relatively calculates equate with the CRC that receives, if equal, reply with regard to feedback acknowledgment, otherwise, feed back non-affirmation and reply.It is different through the importance of different pieces of information that a transmission block is comprised to be present embodiment; When the CRC of this transmission block calculates; Select a part of significant data wherein of this transmission block to carry out CRC calculating; Carry out transmission block according to this CRC and whether receive the right judgement foundation, can reduce because a part of Internet resources are saved in the unnecessary re-transmission that inessential data transmission fault causes in the transmission block.
Also see also Fig. 5; Second application example of a kind of method for transport block cyclic redundancy check that provides for the embodiment of the invention 5; Among this embodiment; It is pre-conditioned that the size of said transmission block satisfies is example with the size that satisfies the transmission block that AMR AMR speech frame adopts still, and what then obtain partial data in the said transmission block is example with what obtain the sub-flow data of A in the said transmission block at least.Another kind of processing procedure for the receiving terminal of physical layer is:
501: confirm transmission block size TBS information;
502: the data to receiving are decoded, and obtain transmission block and corresponding C RC0 checking information;
Wherein, 501 and 502 can not have sequencing in time, can carry out simultaneously yet, certainly, can confirm the size of transmission block earlier yet, the data that receive are decoded etc. again.
503: whether the size of judging said transmission block satisfies the size of the transmission block that AMR AMR speech frame adopts, if satisfy (one of TBS that to be said TBS possibly adopt with the AMR speech frame equates), then carries out 504; Otherwise, carry out 508;
504: whole transmission block is carried out CRC calculate, obtain the CRC1 check information;
505: judge whether said CRC1 equates with CRC0,, then carry out 506 if equate; Otherwise, carry out 507;
506: confirm that said transmission is correct, feedback acknowledgment is replied;
507: from transmit soon, extract A stream according to TBS;
508: said A stream is carried out CRC CRC calculate, obtain the CRC2 check information;
509: judge whether said CRC2 equates with CRC0,, then carry out 506 if equate; Otherwise, carry out 510;
510: confirm that said transmission is incorrect, feed back non-affirmation and reply.
In the embodiment of the invention, judge whether the size of said transmission block satisfies the size of the transmission block of AMR AMR speech frame employing, if satisfy; Calculate earlier the CRC of whole transmission block, and whether the CRC that relatively calculates whole transmission block equate with the CRC that receives, if equal; Reply with regard to feedback acknowledgment, otherwise, said A stream is carried out CRC CRC calculate; And whether the CRC that relatively calculates A stream equates with the CRC that receives; If equate, reply with regard to feedback acknowledgment, reply otherwise feed back non-affirmation.It is different through the importance of different pieces of information that a transmission block is comprised to be present embodiment; When the CRC of this transmission block calculates; Select a part of significant data wherein of this transmission block to carry out CRC calculating; Carry out transmission block according to this CRC and whether receive the right judgement foundation, can reduce because a part of Internet resources are saved in the unnecessary re-transmission that inessential data transmission fault causes in the transmission block.
Based on the implementation procedure of said method, the embodiment of the invention 1 also provides a kind of device of transport block cyclic redundancy check, and its structural representation sees Fig. 6 for details; Said device comprises: receiving element 61; Verification unit 62, adhesion unit 63 and transmitting element 64, wherein; Receiving element 61 is used to receive the high-rise transmission block that sends; Verification unit 62 is used for the partial data of said transmission block is carried out CRC CRC calculating, obtains CRC check information; Adhesion unit 63, be used for said CRC check information with said transmission block attached to; Transmitting element 64 is used for sending to receiving terminal with adhering to said CRC check transmission of Information piece.
Preferably, said device can also comprise: confirm unit and acquiring unit, wherein, confirm the unit, be used for confirming whether said transmission block data carried by data satisfies AMR AMR speech frame; Acquiring unit is used in the definite result who confirms the unit obtaining the sub-flow data of A in the said AMR speech frame at least when satisfying.
Wherein, said definite unit comprises: receiving element and definite subelement, and wherein, receiving element is used for receiving high-rise said transmission block data carried by data of sending the notice that is the AMR speech frame; Confirm subelement, be used for confirming that according to said notice said transmission block data carried by data is the AMR speech frame.
Preferably, said acquiring unit comprises: computing unit, code signal confirm that unit and bit number confirm the unit, and wherein, computing unit is used for calculating according to the size of said transmission block the number of coded bits of said AMR speech frame; Code signal is confirmed the unit, is used for confirming corresponding codes structure type number according to the number of coded bits of said AMR speech frame; Bit number is confirmed the unit, is used for confirming according to said coding structure style number the bit number of said A stream.
Accordingly, also see also Fig. 7, a kind of structural representation of transport block cyclic redundancy check device also is provided for the embodiment of the invention 2; Said device comprises: confirm unit 71, decoding unit 72; Acquiring unit 73, the first verification unit 74 and first feedback unit 75, wherein; The size of said transmission block is confirmed in said definite unit 72; Said decoding unit 71 is used for the data that receive are decoded, and obtains a transmission block and a CRC checking information; Said acquiring unit 73 is used for satisfying when pre-conditioned in the size of judging said transmission block, obtains the partial data in the said transmission block; Said first verification unit 74 is used for that said partial data is carried out CRC CRC and calculates, and obtains the second CRC check information; Said first feedback unit 75 is used for when judging that the first CRC check information equates with the second CRC check information, confirms that transmission is correct, and feedback acknowledgment is replied.
Preferably, said acquiring unit specifically is used for when the size of judging said transmission block satisfies transmission block that AMR AMR speech frame adopts big or small, obtaining the sub-flow data of A in the said transmission block at least.
Preferably, said device can also comprise: first judging unit, said second verification unit; Second judging unit and said second feedback unit; Wherein, first judging unit is used to judge whether the first CRC check information equates with the second CRC check information; The judged result that equates is sent to said feedback unit, unequal judged result is sent to second verification unit; Said second verification unit is used for when receiving the unequal judged result of first judging unit transmission, whole transmission block being carried out CRC calculating, and obtains the 3rd CRC check information; Second judging unit is used to judge whether said the 3rd CRC check information equates with a CRC checking information, and the judged result that equates is sent said first feedback unit, and unequal judged result is sent to second feedback unit; Said second feedback unit is used for sending non-affirmation and replying receiving second judging unit when sending unequal judged result.
Wherein, said definite unit comprises: receiving element; And/or, detecting unit and the 3rd verification unit; Wherein, receiving element is used to receive the fast size of said transmission that control channel sends; Detecting unit is used for the size according to pre-configured transmission block, the blind Detecting data channel; The size of the transmission block that specifically can be adopted according to pre-configured AMR speech frame, blind Detecting data channel (such as high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH); The 3rd verification unit, and the transmission block that blind check is measured obtains the size of said transmission block through CRC check.
Accordingly, also see also Fig. 8, a kind of structural representation of transport block cyclic redundancy check device also is provided for the embodiment of the invention 3; Said device comprises: confirm unit 82, decoding unit 81, the first verification unit 83; Acquiring unit 84, the second verification unit 85 and feedback unit 86, wherein; Confirm unit 81, be used for confirming the size of said transmission block; Decoding unit 82 is used for the data that receive are decoded, and obtains a transmission block and a CRC checking information; First verification unit 83; Be used for satisfying when pre-conditioned that (a kind of embodiment is the size that satisfies the transmission block that AMR AMR speech frame adopts in the size of judging said transmission block; But be not limited to this), then whole transmission block is carried out CRC and calculate, obtain the second CRC check information; Acquiring unit 84 is used for judging that said second a CRC check information and a CRC checking information are unequal, obtains partial data in the said transmission block (flow such as A that obtains transmission block at least etc.); Second verification unit 85 is used for that said partial data (such as the A stream that obtains transmission block at least etc.) is carried out CRC CRC and calculates, and obtains the 3rd CRC check information; Feedback unit 83 is used for when judging that the said first CRC check information equates with the 3rd CRC check information, confirming that said transmission is correct that feedback acknowledgment is replied.
Preferably, in this embodiment, said first verification unit is used for satisfying in the size of judging said transmission block and pre-conditionedly is: the size that satisfies the transmission block that AMR AMR speech frame adopts;
Said acquiring unit, the partial data that is used for obtaining said transmission block is for obtain the sub-flow data of A in the said transmission block at least;
Said second verification unit is used for that the sub-flow data of said A is carried out CRC CRC and calculates, and obtains the 3rd CRC check information.
Preferably, in the above embodiment of the present invention, part significant data in the transmission block is calculated the method for CRC; Being not limited only to the CS speech business that HSPA carries the AMR coding, also can be other business or bearing mode, perhaps other communication systems; Like LTE, WiMax, systems such as TD-SCDMA; Its implementation procedure is similar to the above embodiments, specifically sees for details above-mentionedly, is not giving unnecessary details at this.
In the embodiment of the invention; Importance through different pieces of information that a transmission block is comprised is different; When the CRC of this transmission block calculates, select a part of significant data wherein of this transmission block to carry out CRC and calculate, carry out transmission block according to this CRC and whether receive the right judgement foundation; Can reduce because a part of Internet resources are saved in the unnecessary re-transmission that inessential data transmission fault causes in the transmission block.
Also need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (21)

1.一种传输块循环冗余校验方法，其特征在于，包括：1. A transport block cyclic redundancy check method, characterized in that, comprising: 接收高层发送的传输块；Receive transport blocks sent by higher layers; 对所述传输块中的部分数据进行循环冗余校验码CRC计算，得到CRC校验信息；Carrying out cyclic redundancy check code CRC calculation on the partial data in the transmission block to obtain CRC check information; 将所述CRC校验信息与所述传输块附着在一起，并将附着所述CRC校验信息的传输块发送给接收端。Attach the CRC check information to the transport block, and send the transport block attached with the CRC check information to the receiving end. 2.根据权利要求1所述的方法，其特征在于，还包括：2. The method according to claim 1, further comprising: 若确定所述传输块中承载的数据为自适应多速率AMR语音帧，则至少获取所述AMR语音帧中的A子流数据；If it is determined that the data carried in the transport block is an adaptive multi-rate AMR voice frame, then at least obtain the A substream data in the AMR voice frame; 所述对所述传输块中的部分数据进行循环冗余校验码CRC计算，得到CRC校验信息为：对所述A子流数据进行循环冗余校验码CRC计算，得到CRC校验信息。The performing the CRC calculation on the partial data in the transmission block to obtain the CRC check information is: performing the CRC calculation on the A substream data to obtain the CRC check information . 3.根据权利要求2所述的方法，其特征在于，所述确定所述传输块中承载的数据为自适应多速率AMR语音帧具体包括：3. The method according to claim 2, wherein the determining that the data carried in the transport block is an adaptive multi-rate AMR voice frame specifically comprises: 接收高层发送的所述传输块中承载的数据为AMR语音帧的通知；receiving a notification that the data carried in the transport block sent by the upper layer is an AMR voice frame; 根据所述通知确定所述传输块中承载的数据为AMR语音帧。According to the notification, it is determined that the data carried in the transport block is an AMR voice frame. 4.根据权利要求2所述的方法，其特征在于，所述至少获取所述AMR语音帧中的A子流数据包括：4. The method according to claim 2, wherein said at least obtaining the A substream data in the AMR speech frame comprises: 按照所述传输块的大小计算所述AMR语音帧的编码比特数；Calculate the number of coded bits of the AMR speech frame according to the size of the transport block; 根据所述AMR语音帧的编码比特数确定所述A子流的比特数。Determine the number of bits of the A substream according to the number of coded bits of the AMR speech frame. 5.一种传输块循环冗余校验方法，其特征在于，包括：5. A transmission block cyclic redundancy check method, characterized in that, comprising: 确定所述传输块的大小；determining the size of the transport block; 对接收到的数据进行解码，得到传输块和第一CRC检验信息；Decoding the received data to obtain the transport block and the first CRC check information; 若判断所述传输块的大小满足预设条件，则获取所述传输块中的部分数据；If it is judged that the size of the transmission block satisfies a preset condition, then acquiring part of the data in the transmission block; 对所述部分数据进行循环冗余校验码CRC计算，得到第二CRC校验信息；Performing CRC calculation on the partial data to obtain second CRC check information; 若判断第一CRC校验信息与第二CRC校验信息相等，则确定传输正确，反馈确认应答。If it is judged that the first CRC check information is equal to the second CRC check information, it is determined that the transmission is correct, and an acknowledgment response is fed back. 6.根据权利要求5所述的方法，其特征在于，若判断所述传输块的大小满足预设条件，则获取所述传输块中的部分数据具体包括：6. The method according to claim 5, wherein if it is judged that the size of the transmission block satisfies a preset condition, obtaining part of the data in the transmission block specifically includes: 若判断所述传输块的大小满足自适应多速率AMR语音帧采用的传输块的大小，则至少获取所述传输块中的A子流数据。If it is judged that the size of the transport block satisfies the size of the transport block adopted by the adaptive multi-rate AMR voice frame, at least acquire the A substream data in the transport block. 7.根据权利要求5或6所述的方法，其特征在于，所述方法还包括：7. The method according to claim 5 or 6, wherein the method further comprises: 若判断第一CRC校验信息与第二CRC校验信息不相等，则对整个传输块进行CRC计算，得到第三CRC校验信息；If it is judged that the first CRC check information is not equal to the second CRC check information, the CRC calculation is performed on the entire transmission block to obtain the third CRC check information; 若判断所述第三CRC校验信息与第一CRC检验信息相等，则确定传输正确，反馈确认应答；否则传输错误，反馈非确认应答。If it is judged that the third CRC check information is equal to the first CRC check information, it is determined that the transmission is correct, and an acknowledgment response is fed back; otherwise, a non-acknowledgment response is fed back. 8.根据权利要求5或6所述的方法，其特征在于，所述方法还包括：8. The method according to claim 5 or 6, wherein the method further comprises: 若判断所述传输块大小不满足自适应多速率AMR语音帧所采用的传输块大小，则对整个传输块进行CRC计算，得到第四CRC校验信息；If it is judged that the transmission block size does not meet the transmission block size adopted by the adaptive multi-rate AMR voice frame, then the entire transmission block is carried out to CRC calculation to obtain the fourth CRC check information; 若判断所述第四CRC校验信息与第一CRC校验信息相等，则确定传输正确，反馈确认应答；否则，则确定传输错误，反馈非确认应答。If it is judged that the fourth CRC check information is equal to the first CRC check information, it is determined that the transmission is correct, and an acknowledgment is fed back; otherwise, it is determined that the transmission is wrong, and a non-acknowledgment is fed back. 9.根据权利要求5或6所述的方法，其特征在于，所述确定所述传输块的大小包括：9. The method according to claim 5 or 6, wherein the determining the size of the transport block comprises: 接收控制信道发送的所述传输快的大小；或者receive the size of the transmission block sent by the control channel; or 按照预先配置的传输块的大小，盲检测数据信道，并根据对盲检测到的传输块进行的CRC校验，确定所述传输块的大小。According to the pre-configured size of the transmission block, the data channel is blindly detected, and the size of the transmission block is determined according to the CRC check performed on the blindly detected transmission block. 10.一种传输块循环冗余校验的方法，其特征在于，包括：10. A method for transmission block cyclic redundancy check, characterized in that, comprising: 确定所述传输块的大小；determining the size of the transport block; 对接收到的数据进行解码，得到传输块和第一CRC检验信息；Decoding the received data to obtain the transport block and the first CRC check information; 若判断所述传输块的大小满足预设条件时，则对整个传输块进行CRC计算，得到第二CRC校验信息；If it is judged that the size of the transmission block satisfies the preset condition, performing CRC calculation on the entire transmission block to obtain second CRC check information; 若判断所述第二CRC校验信息与第一CRC检验信息不相等，则获取所述传输块中的部分数据；If it is judged that the second CRC check information is not equal to the first CRC check information, then acquire part of the data in the transmission block; 对所述部分数据进行循环冗余校验码CRC计算，得到第三CRC校验信息；Performing cyclic redundancy check code CRC calculation on the partial data to obtain third CRC check information; 若判断第一CRC校验信息与第三CRC校验信息相等，则确定所述传输正确，反馈确认应答。If it is judged that the first CRC check information is equal to the third CRC check information, it is determined that the transmission is correct, and an acknowledgment response is fed back. 11.根据权利要求10所述的方法，其特征在于，所述满足预设条件为满足自适应多速率AMR语音帧采用的传输块的大小；11. method according to claim 10 is characterized in that, described meeting preset condition is to meet the size of the transmission block that adaptive multi-rate AMR speech frame adopts; 所述获取所述传输块中的部分数据为至少获取所述传输块中的A子流数据；The acquiring part of the data in the transport block is at least acquiring the A substream data in the transport block; 所述对所述部分数据进行循环冗余校验码CRC计算为：对所述A子流数据进行循环冗余校验码CRC计算，得到第三CRC校验信息。The performing CRC calculation on the partial data is: performing CRC calculation on the A substream data to obtain third CRC information. 12.一种传输块循环冗余校验的装置，其特征在于，包括：12. A device for transmission block cyclic redundancy check, characterized in that, comprising: 接收单元，用于接收高层发送的传输块；a receiving unit, configured to receive a transport block sent by a higher layer; 校验单元，用于对所述传输块中的部分数据进行循环冗余校验码CRC计算，得到CRC校验信息；A check unit, configured to perform cyclic redundancy check code CRC calculation on part of the data in the transmission block to obtain CRC check information; 附着单元，用于将所述CRC校验信息与所述传输块附着在一起；an attaching unit, configured to attach the CRC check information to the transport block; 发送单元，用于将附着所述CRC校验信息的传输块发送给接收端。A sending unit, configured to send the transport block attached with the CRC check information to the receiving end. 13.根据权利要求12所述的装置，其特征在于，还包括：13. The device of claim 12, further comprising: 确定单元，用于确定所述传输块中承载的数据是否满足自适应多速率AMR语音帧；A determining unit, configured to determine whether the data carried in the transport block satisfies an adaptive multi-rate AMR voice frame; 获取单元，用于在确定单元的确定结果为满足时，至少获取所述AMR语音帧中的A子流数据。The acquiring unit is configured to at least acquire the A substream data in the AMR speech frame when the determining result of the determining unit is satisfied. 14.根据权利要求13所述的装置，其特征在于，所述确定单元包括：14. The device according to claim 13, wherein the determining unit comprises: 接收单元，用于接收高层发送的所述传输块中承载的数据为AMR语音帧的通知；A receiving unit, configured to receive a notification sent by a higher layer that the data carried in the transport block is an AMR voice frame; 确定子单元，用于根据所述通知确定所述传输块中承载的数据为AMR语音帧。The determining subunit is configured to determine, according to the notification, that the data carried in the transport block is an AMR voice frame. 15.根据权利要求13所述的装置，其特征在于，所述获取单元包括：15. The device according to claim 13, wherein the acquiring unit comprises: 计算单元，用于按照所述传输块的大小计算所述AMR语音帧的编码比特数；A calculation unit, configured to calculate the number of coded bits of the AMR speech frame according to the size of the transport block; 编码信号确定单元，用于根据所述AMR语音帧的编码比特数确定对应的编码结构类型号；An encoded signal determination unit, configured to determine a corresponding encoding structure type number according to the number of encoded bits of the AMR speech frame; 比特数确定单元，用于根据所述编码结构类型号确定所述A子流的比特数。A bit number determining unit, configured to determine the bit number of the A substream according to the coding structure type number. 16.一种传输块循环冗余校验装置，其特征在于，包括：16. A transport block cyclic redundancy check device, characterized in that it comprises: 确定单元，确定所述传输块的大小；a determining unit, configured to determine the size of the transport block; 解码单元，用于对接收到的数据进行解码，得到传输块和第一CRC检验信息；a decoding unit, configured to decode the received data to obtain the transport block and the first CRC check information; 获取单元，用于在判断所述传输块的大小满足预设条件时，获取所述传输块中的部分数据；an acquiring unit, configured to acquire part of the data in the transport block when judging that the size of the transport block satisfies a preset condition; 第一校验单元，用于对所述部分数据进行循环冗余校验码CRC计算，得到第二CRC校验信息；The first check unit is configured to perform CRC calculation on the partial data to obtain second CRC check information; 第一反馈单元，用于在判断第一CRC校验信息与第二CRC校验信息相等时，确定传输正确，反馈确认应答。The first feedback unit is configured to determine that the transmission is correct when judging that the first CRC check information is equal to the second CRC check information, and feed back an acknowledgment response. 17.根据权利要求16所述的装置，其特征在于，所述获取单元，具体用于在判断所述传输块的大小满足自适应多速率AMR语音帧采用的传输块的大小时，至少获取所述传输块中的A子流数据。17. The device according to claim 16, wherein the acquiring unit is specifically configured to acquire at least the size of the transport block adopted by the adaptive multi-rate AMR voice frame when judging that the size of the transport block meets the size of the transport block adopted by the adaptive multi-rate AMR speech frame. A substream data in the transport block described above. 18.根据权利要求16或17所述的装置，其特征在于，还包括：18. The device according to claim 16 or 17, further comprising: 第一判断单元，用于判断第一CRC校验信息与第二CRC校验信息是否相等，将相等的判断结果发送给所述反馈单元，将不相等的判断结果发送给第二校验单元；The first judgment unit is used to judge whether the first CRC check information is equal to the second CRC check information, send the equal judgment result to the feedback unit, and send the unequal judgment result to the second check unit; 所述第二校验单元，用于在接收到第一判断单元发送的不相等的判断结果时，对整个传输块进行CRC计算，得到第三CRC校验信息；The second checking unit is configured to perform CRC calculation on the entire transmission block to obtain third CRC checking information when receiving the unequal judgment result sent by the first judging unit; 第二判断单元，用于判断所述第三CRC校验信息与第一CRC检验信息是否相等，并将相等的判断结果发送所述第一反馈单元，将不相等的判断结果发送给第二反馈单元；The second judgment unit is used to judge whether the third CRC check information is equal to the first CRC check information, and send the equal judgment result to the first feedback unit, and send the unequal judgment result to the second feedback unit unit; 所述第二反馈单元，用于在接收到第二判断单元发送不相等的判断结果时，发送非确认应答。The second feedback unit is configured to send a non-confirmation response when receiving an unequal judgment result sent by the second judging unit. 19.根据权利要求16或17所述的装置，其特征在于，所述确定单元包括：19. The device according to claim 16 or 17, wherein the determining unit comprises: 接收单元，用于接收控制信道发送的所述传输快的大小；a receiving unit, configured to receive the size of the transmission block sent by the control channel; 和/或and / or 检测单元，用于按照预先配置的传输块的大小，盲检测数据信道；a detection unit, configured to blindly detect a data channel according to a pre-configured size of a transport block; 第三校验单元，并对盲检测到的传输块通过CRC校验，得到所述传输块的大小。The third checking unit is configured to perform a CRC check on the blindly detected transport block to obtain the size of the transport block. 20.一种传输块循环冗余校验的装置，其特征在于，包括：20. A device for transmission block cyclic redundancy check, characterized in that it comprises: 确定单元，用于确定所述传输块的大小；a determining unit, configured to determine the size of the transport block; 解码单元，用于对接收到的数据进行解码，得到传输块和第一CRC检验信息；a decoding unit, configured to decode the received data to obtain the transport block and the first CRC check information; 第一校验单元，用于在判断所述传输块的大小满足预设条件时，对整个传输块进行CRC计算，得到第二CRC校验信息；The first verification unit is configured to perform CRC calculation on the entire transmission block to obtain second CRC verification information when judging that the size of the transmission block satisfies a preset condition; 获取单元，用于在判断所述第二CRC校验信息与第一CRC检验信息不相等，获取所述传输块中的部分数据；An acquisition unit, configured to acquire part of the data in the transmission block after judging that the second CRC check information is not equal to the first CRC check information; 第二校验单元，用于对所述部分数据进行循环冗余校验码CRC计算，得到第三CRC校验信息；The second check unit is configured to perform cyclic redundancy check code CRC calculation on the partial data to obtain third CRC check information; 反馈单元，用于在判断所述第一CRC校验信息与第三CRC校验信息相等时，确定所述传输正确，反馈确认应答。The feedback unit is configured to determine that the transmission is correct when judging that the first CRC check information is equal to the third CRC check information, and feed back an acknowledgment response. 21.根据权利要求20所述的装置，其特征在于，所述第一校验单元，用于在判断所述传输块的大小满足预设条件为：满足自适应多速率AMR语音帧采用的传输块的大小；21. The device according to claim 20, wherein the first checking unit is configured to determine that the size of the transmission block satisfies a preset condition: satisfying the transmission rate adopted by the adaptive multi-rate AMR speech frame block size; 所述获取单元，用于获取所述传输块中的部分数据为至少获取所述传输块中的A子流数据；The acquiring unit is configured to acquire part of the data in the transport block by acquiring at least A substream data in the transport block; 所述第二校验单元，用于对所述A子流数据进行循环冗余校验码CRC计算，得到第三CRC校验信息。The second check unit is configured to perform CRC calculation on the A substream data to obtain third CRC check information.
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CN110445583A (en) * 2019-08-12 2019-11-12 珠海市伟高变频科技有限公司 Method of calibration, check system and the computer readable storage medium of data transmission
CN111654884A (en) * 2020-05-22 2020-09-11 Oppo广东移动通信有限公司 A data processing method and related equipment

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