CN101399649A - Data transmission method, system and device - Google Patents
Data transmission method, system and device Download PDFInfo
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- CN101399649A CN101399649A CNA2007101615592A CN200710161559A CN101399649A CN 101399649 A CN101399649 A CN 101399649A CN A2007101615592 A CNA2007101615592 A CN A2007101615592A CN 200710161559 A CN200710161559 A CN 200710161559A CN 101399649 A CN101399649 A CN 101399649A
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Abstract
The embodiment of the invention discloses a method for transmitting data. The method comprises the following steps: receiving a status report of an automatic repeat request (ARQ); determining whether the data requested repeating in the ARQ status report transmits a self-adapting repeat request (HARQ) in progress or not, if so, HARQ transmission of the data is rejected to be triggered; if not, HARQ transmission of the data is triggered. The embodiment of the invention simultaneously discloses a system and equipment for transmitting data. By adopting the method, the system and the equipment of the embodiment of the invention, data redundancy transmission during communicating process can be avoided.
Description
Technical field
The present invention relates to mobile communication technology, data transferring method, system and equipment in particularly a kind of communication system.
Background technology
In data communication system, usually adopt automatic repeat requests (ARQ, Automatic RepeatRequest) technology to carry out error control.So-called ARQ technology is meant to add certain redundant bit position in the data code groups of transmitting terminal emission, makes this code character have certain error detecing capability; After receiving the data code groups that transmits by channel when receiving terminal, according to the coding rule of this code character the data code groups that receives is carried out error detection, and generate answer signal, feed back to transmitting terminal according to the error detection result; Transmitting terminal thinks have those group data of mistake to retransfer with receiving terminal, till the correct reception of receiving terminal according to the answer signal that receives.
If the code character that transmitting terminal sends possesses the EDC error detection and correction ability simultaneously, then this ARQ is called mixed self-adapting repeat requests (HARQ, Hybrid Automatic Repeat Request), briefly, HARQ is meant and earlier the wrong code character that detects is carried out error correction, if can correct mistake wherein, thereby obtain correct code character, then accept this group data; If can not correct mistake wherein, the answer signal of retransmitting to the transmitting terminal feedback request then.In the HARQ system, the answer signal that receiving terminal feeds back to transmitting terminal comprises affirmation, and (ACK is Acknowledgment) with non-affirmation (NACK, NotAcknowledgment) two kinds, wherein, ACK represents that receiving terminal correctly receives data, and transmitting terminal can send new data; And NACK represents that receiving terminal fails correctly to receive data, and the request transmitting terminal retransmits the last data that send.
HARQ compares with ARQ, and difference is: in the practical application, HARQ is applied to bottom and retransmits, and ARQ is applied to high-rise the re-transmission; And a HARQ process is just controlled at the error detection of data, and ARQ is the error detection control at a plurality of data.Current, ARQ and HARQ technology have obtained extensive use in practice, below with the land radio access web (EUTRAN of evolution, Evolved Universal Terrestrial Radio Access Network) be example, ARQ and HARQ The Application of Technology mode be described in further detail:
Fig. 1 is the user face protocol stack schematic diagram of existing EUTRAN system.As shown in Figure 1, the EUTRAN system is mainly by packet data convergence protocol (PDCP, Packet Data ConvergenceProtocol), wireless chain control layer (RLC, Radio Link Control), media access control layer (MAC, Media Access Control) and four layers of composition of physical layer (PHY, Physical Layer).Wherein, in data communication process, the HARQ function is carried out in the MAC layer, and the ARQ function is carried out in rlc layer.
Transmitting terminal ARQ function execution apparatus in the network sends a plurality of data hereinafter to be referred as transmitting terminal ARQ to receiving terminal ARQ, as data 1, data 2 and data 3.Transmitting terminal ARQ at first is sent to transmitting terminal HARQ function execution apparatus with data 1, data 2 and data 3, hereinafter to be referred as transmitting terminal HARQ; Transmitting terminal HARQ is sent to receiving terminal HARQ with data 1, data 2 and data 3 respectively by different HARQ processes; Receiving terminal HARQ judges whether the data that receive are correct, if correct, then to transmitting terminal HARQ feeding back ACK, if incorrect, then feeds back NACK; After transmitting terminal HARQ receives ACK, send new data,, then before receiving terminal HARQ resends, transmit wrong data if receive NACK to receiving terminal HARQ.If the number of retransmissions at a certain data has reached predefined maximum retransmission, and these data still correctly are not sent to receiving terminal HARQ, then transmitting terminal HARQ will ask high-rise ARQ again to self sending these data.
Receiving terminal HARQ can reset the data delivery that correctly receives to the rearrangement buffer memory of receiving terminal ARQ, receiving terminal ARQ is after carrying out data rearrangement, can judge which loss of data by self mechanism, in case discovery loss of data, then send the ARQ status report to transmitting terminal ARQ, request retransmits the data of losing.Can include in this ARQ status report at the ACK information of the data of correct reception and at failing the nack message of the correct data that receive.After transmitting terminal ARQ receives the ARQ status report, the data that correctly receive are deleted from self buffer memory, send new data simultaneously, and retransmit for failing the correct data that receive.If receiving terminal ARQ correctly receives all data, then both can be to transmitting terminal ARQ loopback ARQ status report, also can not loopback ARQ status report.
Though such scheme can be realized error control in the data transfer procedure having certain defective simultaneously by using ARQ and HARQ technology.Such as: because receiving terminal is not known the state of transmitting terminal, so, transmitting terminal HARQ might occur and reach predefined maximum retransmission, still do not finish correct transmission to a certain data, trigger to retransmit to transmitting terminal ARQ, after the HARQ that promptly triggers a new round transmits; Receiving terminal ARQ also sends the ARQ status report to transmitting terminal ARQ owing to find this loss of data, triggers the re-transmission at these data; Transmitting terminal ARQ transmits according to the HARQ that this ARQ status report triggers a new round.Like this, cause the transmission that repeats at same data, redundant retransmission promptly takes place, the waste interface-free resources influences systematic function.
Summary of the invention
The embodiment of the invention provides a kind of data transferring method, can avoid the redundancy of data to transmit.
The embodiment of the invention provides a kind of data communication system, can avoid the redundancy of data to transmit.
The embodiment of the invention provides a kind of data transfer equipment, can avoid the redundancy of data to transmit.
The technical scheme of the embodiment of the invention is achieved in that
A kind of data transferring method comprises:
Receive automatic repeat requests ARQ status report, judge whether the data of request retransmission in the described ARQ status report are carrying out self adaptation repeat requests HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
A kind of data communication system comprises: transmitting terminal ARQ function execution apparatus and receiving terminal ARQ function execution apparatus;
Described receiving terminal ARQ function execution apparatus is used for sending the ARQ status report to described transmitting terminal ARQ function execution apparatus;
Described transmitting terminal ARQ function execution apparatus, be used to receive ARQ status report from described receiving terminal ARQ function execution apparatus, judge whether the data of request retransmission in the described ARQ status report are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
A kind of data transfer equipment comprises: receiving element and performance element;
Described receiving element is used to receive the ARQ status report from receiving terminal ARQ function execution apparatus;
Described performance element is used for judging whether the data of described ARQ status report request retransmission are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
As seen, adopt the technical scheme of the embodiment of the invention, receive the ARQ status report, when the data of request retransmission were being carried out the HARQ transmission in determining this ARQ status report, the HARQ that does not trigger at these data transmitted.Compared with prior art, the described scheme of the embodiment of the invention has been carried out the situation that HARQ transmits in a certain data, no longer accept HARQ, thereby avoided repeated trigger, avoided the redundancy of data to transmit same data according to these data of ARQ status report triggering.
Description of drawings
Fig. 1 is the user face protocol stack schematic diagram of existing EUTRAN system.
Fig. 2 is the flow chart of the inventive method embodiment.
Fig. 3 is the flow chart of first preferred embodiment of the inventive method.
Fig. 4 is the flow chart of second preferred embodiment of the inventive method.
Fig. 5 is the composition structural representation of system embodiment of the present invention.
Fig. 6 is the composition structural representation of present device embodiment.
Embodiment
In the embodiment of the present invention, receive the ARQ status report, judge whether the data of request retransmission in this ARQ status report are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at these data; Otherwise the HARQ that triggers at these data transmits.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 2 is the flow chart of the inventive method embodiment.The equipment that receives the ARQ status report in the present embodiment is transmitting terminal ARQ function execution apparatus, as base station in the network or user terminal etc.As shown in Figure 2, this method may further comprise the steps:
Step 201: transmitting terminal ARQ function execution apparatus receives the ARQ status report from receiving terminal ARQ function execution apparatus.
For ease of describing, below abbreviate transmitting terminal ARQ function execution apparatus as transmitting terminal ARQ, abbreviate receiving terminal ARQ function execution apparatus as receiving terminal ARQ.
Wherein, carry the feedback information of receiving terminal ARQ to the data that receive spontaneous sending end ARQ in the ARQ status report, illustrate that promptly which data that transmitting terminal ARQ mails to receiving terminal ARQ are correctly received, which is not correctly received, such as losing in transport process etc.
Step 202: when the data of transmitting terminal ARQ request retransmission in determining this ARQ status report were being carried out the HARQ transmission, the HARQ that refusal triggers at these data transmitted.
According to introduction of the prior art as can be known, at receiving terminal ARQ before transmitting terminal ARQ sends the ARQ status report, transmitting terminal HARQ function execution apparatus, hereinafter to be referred as transmitting terminal HARQ, may trigger the HARQ of a new round to transmitting terminal ARQ, so, in this step, transmitting terminal ARQ is after receiving the ARQ status report, check at first wherein whether the data of request retransmission are carrying out the HARQ transmission, if carrying out the HARQ transmission, then the new HARQ that does not trigger at these data according to this ARQ status report transmits.Certainly, when not carrying out the HARQ transmission for the data of determining request retransmission in the ARQ status report, the HARQ that triggers at these data by prior art transmits.
As seen, adopt said method, avoided in the prior art because the data redundancy that transmitting terminal HARQ and the dual triggering HARQ of receiving terminal ARQ cause transmission problem.
Need to prove that the data described in the embodiment of the invention are generally protocol Data Unit (PDU, Protocol Data Unit), but, if a PDU can not once be sent, also this PDU can be carried out segmentation, and a plurality of segmentations of this PDU be sent respectively by HARQ.Because the described scheme of the embodiment of the invention is identical to the processing mode of PDU or PDU segmentation, so, be that PDU is that example describes only in the embodiment of the invention with described data for ease of describing.
Under the normal condition, in carrying out the HARQ transport process, HARQ normally receives if the PDU that retransmits is received end, and then receiving terminal HARQ can send ACK to transmitting terminal HARQ; After receiving terminal HARQ receives ACK, stop re-transmission, then transmit new PDU this PDU; HARQ does not correctly receive if the PDU that retransmits when reaching maximum retransmission, is received end yet, and then transmitting terminal HARQ is to the HARQ of a transmitting terminal ARQ triggering new round, process shown in the repeating step 201～202.
But in the prior art, receiving terminal HARQ mistake might occur to the ACK and the NACK of transmitting terminal HARQ feedback.The NACK that sends to transmitting terminal HARQ such as, receiving terminal HARQ may be mistranslated when the decoding is ACK, like this, transmitting terminal HARQ will occur because wrong receive ACK and stop to transmit at the HARQ of a certain PDU, thereby cause packet loss; Perhaps, the ACK that receiving terminal HARQ sends to transmitting terminal HARQ is mistranslated when decoding is NACK, and in this case, transmitting terminal HARQ is because the wrong HARQ that receiving NACK and proceeding this PDU transmits, thereby start once invalid re-transmission, reduce the throughput of system.
At this problem, provide following settling mode in the embodiment of the invention:
1) for the situation of NACK being thought by mistake ACK:
After transmitting terminal HARQ receives the ACK of receiving terminal HARQ feedback, stop HARQ and transmit; But actual conditions are that the PDU of this HARQ correspondence correctly is not sent to receiving terminal HARQ; Afterwards, receiving terminal ARQ finds that by existing detection mode this PDU loses, and sends ARQ status report, this PDU of request retransmission to transmitting terminal ARQ once more; Transmitting terminal ARQ determines that the HARQ transmission of this PDU correspondence stops, and retransmits this PDU.
2) for the situation of ACK being thought by mistake NACK:
Transmitting terminal HARQ retransmits this PDU to receiving terminal HARQ after receiving the NACK of receiving terminal HARQ feedback; Retransmit through one or many, after receiving terminal HARQ correctly receives this PDU, it is submitted to receiving terminal ARQ, and send ACK to transmitting terminal HARQ, but because transmitting terminal HARQ receives is NACK, so continue to retransmit this PDU; Receiving terminal ARQ sends the ARQ status report to transmitting terminal ARQ after knowing that this PDU is by correct the reception, wherein carry the ACK information about this PDU; Transmitting terminal ARQ detects this PDU and is still carrying out the HARQ transmission, stops this HARQ and transmits.
Below by preferred embodiment, scheme of the present invention is described in further detail:
Preferred embodiment one:
Fig. 3 is the flow chart of first preferred embodiment of the inventive method.In the present embodiment, one by transmitting terminal HARQ trigger at PDU, during the HARQ transmission as PDU X, if transmitting terminal ARQ receives the ARQ status report at the NACK of this PDU X, then the new HARQ that does not trigger at this PDU X according to this ARQ status report transmits.Receive HARQ ACK up to transmitting terminal HARQ, after end HARQ transmits,, just PDU X is retransmitted if transmitting terminal ARQ receives the status report from the request retransmission PDU X of receiving terminal ARQ once more.
Suppose that receiving terminal HARQ is ACK with the NACK mistranslation in the present embodiment.As shown in Figure 3, may further comprise the steps:
Step 301: transmitting terminal HARQ and receiving terminal HARQ carry out transmitting at the HARQ of PDU X.
Step 302: in a certain moment, the number of retransmissions of PDU X reaches the HARQ maximum retransmission, and receiving terminal HARQ sends NACK to transmitting terminal HARQ.
Step 303: after transmitting terminal HARQ receives this NACK, send local (Local) NACK, request retransmission PDU X to transmitting terminal ARQ.
Step 304: transmitting terminal ARQ sends PDU X to transmitting terminal HARQ, and the HARQ that triggers a new round transmits.
Step 305: receiving terminal ARQ detects PDU X according to existing mode and loses, and sends ARQ status report, request retransmission PDU X to transmitting terminal ARQ.
Certainly, can also carry ACK information in the ARQ status report of this step at the PDU of correct reception.
Step 306: after transmitting terminal ARQ receives this ARQ status report, find also not stop, then not retransmitting PDU X at the HARQ transmission of PDU X.
Step 307: transmitting terminal HARQ receives the ACK from receiving terminal HARQ, stops HARQ and transmits.
In this step, the ACK that transmitting terminal HARQ receives should be NACK, but owing to mistake has appearred in reasons such as transmission or decoding.
After transmitting terminal HARQ receives ACK, take for receiving terminal HARQ and correctly received PDU X, transmit so stop HARQ.
Step 308: receiving terminal ARQ detects PDU X according to existing mode and is not still correctly received, and sends ARQ status report, request retransmission PDU X to transmitting terminal ARQ.
Step 309: after transmitting terminal ARQ receives this ARQ status report, judge whether the HARQ transmission at PDU X stops, if stop, then retransmitting PDU X, subsequent process repeating step 304～309.
In this step, how transmitting terminal ARQ judges that transmitting the mode that whether has stopped at the HARQ of PDU X is prior art, is not described herein.
In embodiment illustrated in fig. 3, for ease of describing, only to carry a NACK in the ARQ status report, the NACK that is corresponding PDU X is that example describes, but those skilled in the art will be appreciated that, in actual applications, can carry a plurality of NACK simultaneously in the ARQ status report at different PDU, in this case, whether the PDU that transmitting terminal ARQ only need judge each NACK correspondence respectively transmits and get final product carrying out HARQ, if carrying out the HARQ transmission, then do not carry out the re-transmission of this PDU, do not transmit if carry out HARQ, then retransmit this PDU according to prior art, the HARQ that promptly triggers at this PDU transmits.
Preferred embodiment two:
Fig. 4 is the flow chart of second preferred embodiment of the inventive method.In the present embodiment, one by transmitting terminal HARQ trigger at PDU, during the HARQ transmission as PDU X, if transmitting terminal ARQ receives the ARQ status report at the NACK of this PDU X, then the new HARQ that does not trigger at this PDU X according to this ARQ status report transmits.But if transmit in the also unclosed process at this HARQ, transmitting terminal ARQ receives the ACK at this PDU X from receiving terminal ARQ, then finishes this HARQ and transmits.
Suppose that receiving terminal HARQ is NACK with the ACK mistranslation in the present embodiment.As shown in Figure 4, may further comprise the steps:
Step 401: transmitting terminal HARQ and receiving terminal HARQ carry out transmitting at the HARQ of PDU X.
Step 402: in a certain moment, the number of retransmissions of PDU X reaches the HARQ maximum retransmission, and receiving terminal HARQ sends NACK to transmitting terminal HARQ.
Step 403: after transmitting terminal HARQ receives this NACK, send LocalNACK, request retransmission PDU X to transmitting terminal ARQ.
Step 404: transmitting terminal ARQ sends PDU X to transmitting terminal HARQ, and the HARQ that triggers a new round transmits.
Step 405: receiving terminal ARQ detects PDU X according to existing mode and loses, and sends ARQ status report, request retransmission PDU X to transmitting terminal ARQ.
Certainly, can also carry ACK message in the ARQ status report of this step at the PUD of correct reception.
Step 406: after transmitting terminal ARQ receives this ARQ status report, find also not stop, then not retransmitting PDU X at the HARQ transmission of PDU X.
Step 407: receiving terminal HARQ sends NACK to transmitting terminal HARQ.
Transmitting terminal HARQ continues to retransmit PDU X.
Step 408: after receiving terminal HARQ correctly receives PDU X, it is submitted to receiving terminal ARQ.
Step 409: receiving terminal ARQ sends the ARQ status report to transmitting terminal ARQ.
Carry ACK in the ARQ status report at PDU X.
Step 410: transmitting terminal HARQ receives the NACK that sends from receiving terminal HARQ.
In this step, the NACK that transmitting terminal HARQ receives should be ACK, but owing to mistake has appearred in reasons such as transmission or decoding.
After transmitting terminal HARQ receives NACK, take for receiving terminal HARQ and also correctly do not receive PDU X, transmit so proceed HARQ, but actual reception end HARQ has correctly received PDU X.
Step 411: after transmitting terminal ARQ receives the ARQ status report, find that PDU X is still carrying out the HARQ transmission, stops this HARQ and transmits.
In this step, how transmitting terminal ARQ finds that transmitting the mode that whether has stopped at the HARQ of PDU X is prior art, is not described herein.
Based on said method, Fig. 5 is the composition structural representation of system embodiment of the present invention.As shown in Figure 5, this system comprises: transmitting terminal ARQ function execution apparatus 51 and receiving terminal ARQ function execution apparatus 52;
Receiving terminal ARQ function execution apparatus 52 is used for sending the ARQ status report to transmitting terminal ARQ function execution apparatus 51;
Transmitting terminal ARQ function execution apparatus 51, be used to receive ARQ status report from receiving terminal ARQ function execution apparatus 52, judge whether the data of request retransmission in the ARQ status report are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at these data; Otherwise the HARQ that triggers at these data transmits.
Further comprise in this system: transmitting terminal HARQ function execution apparatus 53 and receiving terminal HARQ function execution apparatus 54: receiving terminal HARQ function execution apparatus 54 is used for sending the wrong affirmation information that receives to transmitting terminal HARQ function execution apparatus 53; Transmitting terminal HARQ function execution apparatus 53, be used for transmitting number of times and reach predefined maximum retransmission at the HARQ of data, and when these data correctly are not sent to receiving terminal HARQ function execution apparatus 54 yet, to these data of transmitting terminal ARQ actuating equipment 51 request retransmission.
Above-mentioned transmitting terminal HARQ function execution apparatus 53 and receiving terminal HARQ function execution apparatus 54 also can be further used for:
Receiving terminal HARQ function execution apparatus 54 is to the correct confirmation of receipt information of transmitting terminal HARQ function execution apparatus 53 feedbacks; Transmitting terminal HARQ function execution apparatus 53 stops to transmit at the HARQ of data after receiving correct confirmation of receipt information.Wherein, transmitting terminal ARQ function execution apparatus 51 is further used for, and receives the ARQ status report from receiving terminal ARQ function execution apparatus 52 once more, and the HARQ of the data of request retransmission transmits when having stopped in determining this ARQ status report, retransmits this data.
Perhaps: receiving terminal HARQ function execution apparatus 54 receives error check information to transmitting terminal HARQ function execution apparatus 53 feedbacks; And after correct reception data, give receiving terminal ARQ function execution apparatus 52 with data delivery; Transmitting terminal HARQ function execution apparatus 53 receives the reception error check information of receiving terminal HARQ function execution apparatus 54 feedbacks, retransmits these data to receiving terminal HARQ function execution apparatus 54.Wherein, transmitting terminal ARQ function execution apparatus 51 is further used for, and receives the ARQ status report from receiving terminal ARQ function execution apparatus 52 once more, when definite HARQ transmission at the data that correctly received does not stop yet, stops HARQ and transmits.
Middle transmitting terminal ARQ function execution apparatus 51, receiving terminal ARQ function execution apparatus 52, transmitting terminal HARQ function execution apparatus 53 and receiving terminal HARQ function execution apparatus 54 embodiment illustrated in fig. 5 can show as various concrete forms in actual applications, such as being base station or user terminal, in a word, be that the equipment that can finish the described function of the embodiment of the invention gets final product.
Fig. 6 is the composition structural representation of present device embodiment.As shown in Figure 6, this equipment comprises: receiving element 61 and performance element 62;
Receiving element 61 is used to receive the ARQ status report from receiving terminal ARQ function execution apparatus 52;
Further comprise in this equipment: trigger element 63, be used for request according to originating end HARQ function execution apparatus 51, the HARQ that triggers at data transmits.
Wherein, performance element 62 is further used for, when receiving element 61 receives ARQ status report from receiving terminal ARQ function execution apparatus 52 once more, when the HARQ of the data of determining request retransmission transmission has stopped, retransmit this data, promptly the HARQ that triggers at these data by trigger element 63 transmits; Perhaps, when receiving element 61 receives ARQ status report from receiving terminal ARQ function execution apparatus 52 once more, determining that HARQ at the data that correctly received transmits when not stopping yet, stops this HARQ transmission.
As seen, adopt the technical scheme of the embodiment of the invention, avoided the redundancy in the data transfer procedure to transmit and unnecessary transmission, saved interface-free resources, improved systematic function.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1, a kind of data transferring method is characterized in that, this method comprises:
Receive automatic repeat requests ARQ status report, judge whether the data of request retransmission in the described ARQ status report are carrying out self adaptation repeat requests HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
2, method according to claim 1 is characterized in that, before this method, further comprises:
Reach predefined maximum retransmission when the HARQ of described data transmits number of times, and described data are not when transmitting correctly yet, transmitting terminal HARQ function execution apparatus is to the described data of transmitting terminal ARQ function execution apparatus request retransmission;
Described transmitting terminal ARQ function execution apparatus sends described data to described transmitting terminal HARQ function execution apparatus, and the HARQ that triggers at described data transmits.
3, method according to claim 1 is characterized in that, before this method, further comprises:
Receiving terminal ARQ function execution apparatus detects described transmitting terminal ARQ function execution apparatus data that send, that lose in transport process, send ARQ status report, the described data of losing of request repeat to described transmitting terminal ARQ function execution apparatus.
4, method according to claim 1 is characterized in that, in the described HARQ transport process, further comprises:
Transmitting terminal HARQ function execution apparatus receives the correct confirmation of receipt information at described data of receiving terminal HARQ function execution apparatus feedback, stops to transmit at the HARQ of described data;
Transmitting terminal ARQ function execution apparatus receives the ARQ status report from receiving terminal ARQ function execution apparatus;
Described transmitting terminal ARQ function execution apparatus determines that the HARQ transmission of the data correspondence of request retransmission in the described ARQ status report stops, and retransmits described data.
5, method according to claim 1 is characterized in that, in the described HARQ transport process, further comprises:
Transmitting terminal HARQ function execution apparatus receives the reception error check information of receiving terminal HARQ function execution apparatus feedback, retransmits described data to described receiving terminal HARQ function execution apparatus;
The described data of the correct reception of described receiving terminal HARQ function execution apparatus are submitted to described receiving terminal ARQ function execution apparatus;
Transmitting terminal ARQ function execution apparatus receives the ARQ status report from described receiving terminal ARQ function execution apparatus;
Described transmitting terminal ARQ function execution apparatus detects the data of confirming correct reception in the described ARQ status report and is still carrying out the HARQ transmission, stops described HARQ and transmits.
6, a kind of data communication system is characterized in that, this system comprises: transmitting terminal ARQ function execution apparatus and receiving terminal ARQ function execution apparatus;
Described receiving terminal ARQ function execution apparatus is used for sending the ARQ status report to described transmitting terminal ARQ function execution apparatus;
Described transmitting terminal ARQ function execution apparatus, be used to receive ARQ status report from described receiving terminal ARQ function execution apparatus, judge whether the data of request retransmission in the described ARQ status report are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
7, system according to claim 6 is characterized in that, further comprises in this system: transmitting terminal HARQ function execution apparatus and receiving terminal HARQ function execution apparatus;
Described receiving terminal HARQ function execution apparatus is used for sending the wrong affirmation information that receives to described transmitting terminal HARQ function execution apparatus;
Described transmitting terminal HARQ function execution apparatus, be used for transmitting number of times and reach predefined maximum retransmission at the HARQ of described data, and when described data correctly are not sent to described receiving terminal HARQ function execution apparatus yet, to the described data of described transmitting terminal ARQ function execution apparatus request retransmission; And, retransmit described data according to the triggering of described transmitting terminal ARQ function execution apparatus;
Described transmitting terminal ARQ function execution apparatus sends described data according to the request of described transmitting terminal HARQ function execution apparatus to described transmitting terminal HARQ function execution apparatus, and the HARQ that triggers at described data transmits.
8, system according to claim 6, it is characterized in that, described transmitting terminal ARQ function execution apparatus is further used for, receive ARQ status report once more from described receiving terminal ARQ function execution apparatus, the HARQ of the data of request retransmission transmits when having stopped in determining described ARQ status report, retransmits described data;
And/or, receive ARQ status report once more from described receiving terminal ARQ function execution apparatus, when the HARQ of the data that correctly received in determining at described ARQ status report transmits and do not stop yet, stop described HARQ and transmit.
9, a kind of data transfer equipment is characterized in that, this equipment comprises: receiving element and performance element;
Described receiving element is used to receive the ARQ status report from receiving terminal ARQ function execution apparatus;
Described performance element is used for judging whether the data of described ARQ status report request retransmission are carrying out the HARQ transmission, if then refusal triggers the HARQ transmission at described data; Otherwise the HARQ that triggers at described data transmits.
10, equipment according to claim 9 is characterized in that, further comprises in this equipment: trigger element, be used for request according to transmitting terminal HARQ function execution apparatus, and the HARQ that triggers at described data transmits.
11, equipment according to claim 9, it is characterized in that, described performance element is further used for, when described receiving element receives ARQ status report from receiving terminal ARQ function execution apparatus once more, the HARQ of the data of request retransmission transmits when having stopped in determining described ARQ status report, retransmits described data;
And/or, when described receiving element receives ARQ status report from described receiving terminal ARQ function execution apparatus once more, when the HARQ of the data that correctly received transmits and do not stopped yet, stop described HARQ transmission in determining at described ARQ status report.
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| CN102611537A (en) * | 2011-01-25 | 2012-07-25 | 华为技术有限公司 | Retransmission method and retransmission device of data package |
| WO2014194616A1 (en) * | 2013-06-03 | 2014-12-11 | Tencent Technology (Shenzhen) Company Limited | Systems and methods for data transmission |
| WO2015113259A1 (en) * | 2014-01-29 | 2015-08-06 | 华为技术有限公司 | Data processing method, communication device and system |
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| CN102244560A (en) * | 2010-05-14 | 2011-11-16 | 华为技术有限公司 | Data packet transmission method and equipment for ensuring macro block data integrity in video stream |
| CN102611537A (en) * | 2011-01-25 | 2012-07-25 | 华为技术有限公司 | Retransmission method and retransmission device of data package |
| WO2012100670A1 (en) * | 2011-01-25 | 2012-08-02 | 华为技术有限公司 | Method and apparatus for data packet retransmission |
| CN102611537B (en) * | 2011-01-25 | 2015-09-09 | 华为技术有限公司 | A kind of repeating method of packet and device |
| WO2014194616A1 (en) * | 2013-06-03 | 2014-12-11 | Tencent Technology (Shenzhen) Company Limited | Systems and methods for data transmission |
| US9872198B2 (en) | 2013-06-03 | 2018-01-16 | Tencent Technology (Shenzhen) Company Limited | Systems and methods for data transmission |
| WO2015113259A1 (en) * | 2014-01-29 | 2015-08-06 | 华为技术有限公司 | Data processing method, communication device and system |
| CN104981999A (en) * | 2014-01-29 | 2015-10-14 | 华为技术有限公司 | Data processing method, communication device and system |
| US10154416B2 (en) | 2014-01-29 | 2018-12-11 | Huawei Technologies Co., Ltd | Data processing method, and communications device and system |
| CN104981999B (en) * | 2014-01-29 | 2019-10-18 | 华为技术有限公司 | A kind of data processing method, communication equipment and system |
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