CN101060388A - Hybrid data automatic forward method and device - Google Patents
Hybrid data automatic forward method and device Download PDFInfo
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- CN101060388A CN101060388A CN 200610035073 CN200610035073A CN101060388A CN 101060388 A CN101060388 A CN 101060388A CN 200610035073 CN200610035073 CN 200610035073 CN 200610035073 A CN200610035073 A CN 200610035073A CN 101060388 A CN101060388 A CN 101060388A
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Abstract
The disclosed data mixed HARQ method comprises: transmitting data; receiving data and returning state report; distinguishing the feedback message, and continuing the next data if last transmission is right, and notifying the decision message to the receive end; on receive end, checking whether the transmission end decides rightly, and feeding the 'no' result to the transmission end for re-transmission. This invention improves system performance.
Description
Technical field
The present invention relates to the error-control technique that the data communication field data transmit, in particular, the present invention relates to a kind of data mixture automatic retransmission method and device.
Background technology
In data communication system, normal automatic request retransmission (the Automatic Repeat Request that adopts, ARQ) technology is carried out error control, this technology adds certain redundancy ratio special envoy in the information of emission it has certain error detecing capability, carry out error detection at receiving terminal to received signal according to the rule of correspondence, and the error detection result is formed answer signal feed back to transmitting terminal, transmitting terminal confirms that wrong information retransmits to receiving terminal according to answer signal, till code character does not have error code.If the code character that transmitting terminal sends has the ability of error correction and error detection simultaneously, then be called hybrid ARQ (Hybrid-ARQ, HARQ).The ARQ technology has obtained to use widely in to the not high business of delay requirement.Recently, insert in the high-speed downlink packet of 3-G (Generation Three mobile communication system) that (High-Speed Downlink Packet Access HSDPA) and in the up enhancement techniques, also adopts the H-ARQ technology to carry out error control, to improve systematic function.
Figure 1 shows that the protocol stack architecture of R6, in the R6 system, ARQ is positioned at radio network controller (Radio Network Controller, RNC) Radio Link control (Radio Link Control, RLC) layer, and HARQ is positioned at medium access control (the Media Access Control of NodeB, MAC) layer, be illustrated in figure 2 as long-term evolving network (Long Term Evolution, LTE) protocol stack architecture, (Evolution Universal Terrestrial Radio AccessNetwork is EUTRAN) in the system, because the evolution of system architecture at the universal land radio access web of evolution, the rlc layer that originally is in RNC moves down into NodeB, rlc layer can individualism, also can be also laminated with MAC, and the HARQ of ARQ in the rlc layer and MAC layer is positioned at NodeB like this.
In the HARQ system, receiving terminal is given the affirmation packets of information of transmitting terminal and is drawn together ACK and NACK, and ACK represents that receiving terminal correctly receives data, and transmitting terminal can send new data; It is wrong that NACK represents that receiving terminal detects data, and the request transmitting terminal retransmits last data, and confirmation must be with lower error rate transmission.If confirmation is made mistakes, then can bring to seriously influence to systematic function, for example if ACK is mistranslated and is NACK, then transmitting terminal will start once invalid re-transmission, reduce the throughput of system; If NACK is mistranslated and is ACK, transmitting terminal HARQ buffer memory will be deleted these data, thereby form packet loss, and cause the ARQ re-transmission.In the EUTRAN system, the division cascade once more when supporting that ARQ retransmits will be if will cause systematic function to reduce for confirmation ACK causes ARQ to retransmit unacknowledged information NACK erroneous judgement because of transmitting terminal.
Summary of the invention
The technical problem that the present invention solves provides a kind of data mixture automatic retransmission method and device, and the packet loss to prevent that transmitting terminal from forming when unacknowledged information NACK erroneous judgement is confirmation ACK improves systematic function.
For addressing the above problem, data mixture automatic retransmission method of the present invention comprises:
A, transmitting terminal send data;
B, receiving terminal receive data and to the transmitting terminal condition report feedback;
C, transmitting terminal differentiate the feedback information of the status report of receiving terminal feedback, and send follow-up supervention and give next data in that decision data is correct, when sending next data with the determination information notice receiving terminal of transmitting terminal;
D, receiving terminal check whether decision error of transmitting terminal according to the described determination information of transmitting terminal feedback, and notify transmitting terminal to carry out data re-transmission in check result when being.
Wherein, the determination information of the receiving terminal of notice described in step c transmitting terminal is: when sending next data, add described determination information in the New Development data.
In addition, sending next data among the step c also comprises before: buffer memory is judged the data that correctly send.
Alternatively, steps d specifically comprises:
D11, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
D12, receiving terminal check whether decision error of transmitting terminal according to described determination information, and in check result for being that the back notifies transmitting terminal to carry out data re-transmission.
Alternatively, steps d specifically comprises:
D21, receiving terminal receive new data and check whether carry determination information in the described new data, if check result is to carry determination information in the described new data, then execution in step d22 is not carry determination information in the described new data as if check result, then execution in step d23;
D22, receiving terminal check whether decision error of transmitting terminal according to described determination information, and in check result for being back execution in step d23;
D23, notice transmitting terminal carry out data re-transmission.
Wherein, correctly receive then feedback acknowledgment information of data as if receiving terminal in the condition report feedback of step b receiving terminal feedback, otherwise, do not feed back.
Correspondingly, the another kind of data mixture automatic retransmission method of the present invention, this method mainly comprises:
A, transmitting terminal send data;
B, receiving terminal receive data and to the transmitting terminal condition report feedback;
C, transmitting terminal are differentiated the feedback information of the status report of receiving terminal feedback, and in the correct transmission of decision data or data transmission errors but transmitting terminal data retransmission number of times has reached the follow-up supervention of maximum retransmission gives next data, the determination information of notice receiving terminal transmitting terminal when sending next data;
D, receiving terminal according to the described determination information of transmitting terminal feedback check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and be that the high-rise request retransmission unit automatically of notice receiving terminal when being carries out the automatic request retransmission of data in check result.
Wherein, the determination information of the receiving terminal of notice described in step C transmitting terminal is: when sending next data, add described determination information in the New Development data.
Alternatively, step D specifically comprises:
D11, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
D12, receiving terminal according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and in check result for being that notice receiving terminal high-rise automatic request retransmission unit in back carries out the automatic request retransmission of data.
Alternatively, step D specifically comprises:
D21, receiving terminal receive new data and check whether carry determination information in the described new data, if check result is to carry determination information in the described new data, then execution in step D22 is not carry determination information in the described new data as if check result, then execution in step D23;
D22, receiving terminal according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and in check result for being back execution in step D23;
D23, the high-rise request retransmission unit automatically of notice receiving terminal carry out the automatic request retransmission of data.
Wherein, correctly receive then feedback acknowledgment information of data as if receiving terminal in the condition report feedback of step B receiving terminal feedback, otherwise, do not feed back.
Correspondingly, a kind of data mixing automatic retransmission device of the present invention comprises data mixing automatic retransmission transmitting terminal and data mixing automatic retransmission receiving terminal, and wherein said data mixing automatic retransmission transmitting terminal comprises:
Transmitting element is used to send data;
Receiving element is used to receive the status report that the data mixing automatic retransmission receiving terminal feeds back;
Encapsulation unit is used in the New Development data encapsulation correct transmission of decision data or data transmission errors but transmitting terminal data retransmission number of times has reached the determination information of maximum retransmission;
The judgment processing unit, be used to differentiate the feedback information of the status report of receiving terminal feedback, judge whether correctly to send data or judgment data and send wrong transmitting terminal data retransmission number of times and whether reached maximum retransmission, and in judged result for after being, the indication encapsulation unit encapsulates;
Described data mixing automatic retransmission receiving terminal comprises:
Receiving element is used to receive data;
Feedback unit is used for to the transmitting terminal condition report feedback;
The determination information acquiring unit is used for decapsulation and receives data to obtain determination information;
Check processing unit, be used for according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and be that the high-rise request retransmission unit automatically that the notice transmitting terminal carries out data re-transmission or notice receiving terminal when being carries out the automatic request retransmission of data in check result.
Wherein, described inspection processing unit specifically comprises:
Inspection unit is used for receiving terminal and checks that whether decision error or data retransmission number of times have reached maximum retransmission to transmitting terminal;
Indicating member, if the inspection unit testing result is for being, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
Wherein, the determination information acquiring unit includes:
Judging unit is used for judging whether the new data of reception carries determination information;
Acquiring unit for after being, obtains the determination information that carries in the new data in judgment unit judges.
Alternatively, described detection processing unit specifically comprises:
Inspection unit, if the judgment unit judges result is for being, whether the inspection transmitting terminal decision error;
Indicating member, if the inspection unit check result for be or the judgment unit judges result for not, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
Compared with prior art, the present invention has following beneficial effect:
At first, after transmitting terminal correctly sends according to feedback information decision data in the status report of receiving terminal feedback among the present invention, in the New Development data, carry determination information, receiving terminal is checked whether decision error of transmitting terminal according to described determination information, then notify transmitting terminal to carry out data re-transmission or the high-rise request retransmission unit automatically of notice receiving terminal carries out the automatic request retransmission of data if be checked through the transmitting terminal decision error, thereby prevent the packet loss that transmitting terminal forms when unacknowledged information NACK erroneous judgement is confirmation ACK, improve the performance of system;
Secondly, judging that transmitting terminal data transmission errors and data retransmission number of times are above after the maximum retransmission among the present invention, transmitting terminal also can carry determination information in the New Development data, receiving terminal can notify the high-rise request retransmission unit automatically of receiving terminal to carry out the automatic request retransmission of data according to described determination information, also can improve the performance of system;
Once more, among the present invention in the status report of receiving terminal feedback if receiving terminal correctly receives then feedback acknowledgment information of data, otherwise do not feed back, for example unacknowledged information NACK can be mapped as 0 (DTX) during practical application, confirmation ACK is mapped as 1/-1; By adjusting the mapping relations of NACK/ACK, can reduce the signaling of feedback.
Description of drawings
Fig. 1 is the protocol stack architecture of prior art R6;
Fig. 2 is a prior art LTE protocol stack architecture;
Fig. 3 is the realization flow figure of mixed automatic retransferring method first embodiment of the present invention;
Fig. 4 is the realization flow figure of mixed automatic retransferring method second embodiment of the present invention;
Fig. 5 is the realization flow figure of mixed automatic retransferring method the 3rd embodiment of the present invention;
Fig. 6 is the realization flow figure of mixed automatic retransferring method the 4th embodiment of the present invention;
Fig. 7 is the composition schematic diagram of mixing automatic retransmission device of the present invention;
Fig. 8 is a kind of specific implementation schematic diagram of checking processing unit among Fig. 7;
Fig. 9 is a kind of specific implementation schematic diagram of checking processing unit among Fig. 7;
Figure 10 is an embodiment schematic diagram of the present invention's transmitting terminal and receiving terminal interaction data when carrying out data mixing automatic retransmission.
Embodiment
Core of the present invention is that transmitting terminal will send to receiving terminal to the determination information whether data correctly send, receiving terminal is checked whether decision error of transmitting terminal according to described determination information, and when being checked through the transmitting terminal decision error, indicate the transmitting terminal data retransmission or indicate the high-rise automatic request retransmission of request retransmission unit starting automatically of receiving terminal, by the packet loss that prevents that the transmitting terminal decision error from causing, the present invention can further improve systematic function, in addition, correctly receive then feedback acknowledgment information of data as if receiving terminal in the status report of receiving terminal feedback among the present invention, otherwise do not feed back, specifically, unacknowledged information NACK can be mapped as 0 (DTX), confirmation ACK is mapped as 1/-1; By adjusting the mapping relations of NACK/ACK, can reduce the signaling of feedback, be described in detail below.
With reference to figure 3, Fig. 4 is respectively the realization flow figure of mixed automatic retransferring method first embodiment of the present invention and second embodiment, specifically carries out data mixing automatic retransmission and may further comprise the steps:
Step s11, transmitting terminal sends data;
Step s12, receiving terminal receives data and to the transmitting terminal condition report feedback, can adopt aforementioned mapping relations for the mapping of affirmation information of carrying in the condition report feedback and unacknowledged information in the present embodiment, promptly unacknowledged information NACK is mapped as 0 (DTX), and confirmation ACK is mapped as 1/-1;
Step s13, transmitting terminal is differentiated the feedback information of the status report of receiving terminal feedback, and send follow-up supervention and give next data in that decision data is correct, the determination information of notice receiving terminal transmitting terminal when sending next data, during specific implementation, can when sending next data, in the New Development data, add described determination information, send receiving terminal then to;
Step s14, receiving terminal is checked whether decision error of transmitting terminal according to the described determination information of transmitting terminal feedback, and in check result for being that time notice transmitting terminal carries out data re-transmission, during specific implementation, receiving terminal can adopt dual mode to check and then start transmitting terminal when being checked through the transmitting terminal mistake and carry out data re-transmission among the present invention:
With reference to figure 3, the execution mode according to first embodiment of the invention specifically may further comprise the steps:
Step s1411, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
Step s1412, receiving terminal is checked whether decision error of transmitting terminal according to described determination information, if, execution in step s1413, otherwise, execution in step s1414;
Step s1413, the notice transmitting terminal carries out data re-transmission;
Step s1414 does not notify transmitting terminal.
With reference to figure 4, execution mode according to a second embodiment of the present invention specifically may further comprise the steps:
Step s1421, receiving terminal receives new data and checks whether carry determination information in the described new data, is to carry determination information in the described new data as if check result, then execution in step s1422, as if check result is not carry determination information in the described new data, then execution in step s1423;
S1422, receiving terminal check whether decision error of transmitting terminal according to described determination information, if, execution in step s1423, otherwise, execution in step s1424;
Step s1423, the notice transmitting terminal carries out data re-transmission;
Step s14124 does not notify transmitting terminal.
With reference to figure 5, Fig. 6 is respectively the realization flow figure of mixed automatic retransferring method first embodiment of the present invention and second embodiment, specifically carries out data mixing automatic retransmission and may further comprise the steps:
Step s21, transmitting terminal sends data;
Step s22, receiving terminal receives data and to the transmitting terminal condition report feedback, similarly, can adopt aforementioned mapping relations for the mapping of affirmation information of carrying in the condition report feedback and unacknowledged information in the present embodiment, be that unacknowledged information NACK can be mapped as 0 (DTX), confirmation ACK can be mapped as 1/-1;
Step s23, transmitting terminal is differentiated the feedback information of the status report of receiving terminal feedback, and in the correct transmission of decision data or data transmission errors but transmitting terminal data retransmission number of times has reached the follow-up supervention of maximum retransmission gives next data, the determination information of notice receiving terminal transmitting terminal when sending next data, can be when sending next data during specific implementation, in the New Development data, add described determination information, send receiving terminal then to;
Step s24, receiving terminal checks that according to the described determination information of transmitting terminal feedback whether decision error or data retransmission number of times have reached maximum retransmission to transmitting terminal, and be to be that the high-rise request retransmission unit automatically of time notice receiving terminal carries out the automatic request retransmission of data in check result, in the present embodiment, receiving terminal can adopt dual mode to check equally and then start transmitting terminal when being checked through the transmitting terminal mistake and carry out data re-transmission:
With reference to figure 5, the execution mode according to third embodiment of the invention specifically may further comprise the steps:
S2411, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
S2412, receiving terminal check that according to described determination information whether decision error or data retransmission number of times have reached maximum retransmission to transmitting terminal, if check result is for being, execution in step s2413, the high-rise request retransmission unit automatically of notice receiving terminal carries out the automatic request retransmission of data; Otherwise, execution in step s2414;
Step s2413, the high-rise request retransmission unit automatically of notice receiving terminal carries out the automatic request retransmission of data;
Step s2414 does not notify receiving terminal high-rise request retransmission unit automatically.
With reference to figure 6, the execution mode according to fourth embodiment of the invention specifically may further comprise the steps:
Step s2421, receiving terminal receives new data and checks whether carry determination information in the described new data, is to carry determination information in the described new data as if check result, then execution in step s2422, as if check result is not carry determination information in the described new data, then execution in step s2423;
S2422, receiving terminal according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, if, execution in step s2423, otherwise, execution in step s2424;
S2423, the high-rise request retransmission unit automatically of notice receiving terminal carries out the automatic request retransmission of data;
S2424 does not notify transmitting terminal.
With reference to figure 7, this figure is a kind of composition schematic diagram of mixing automatic retransmission device of the present invention, specifically mainly comprises:
Data mixing automatic retransmission transmitting terminal 1: the transmitting terminal of data mixing automatic retransmission described in the present invention comprises:
Transmitting element 11 is used to send data;
Receiving element 12 is used to receive the status report that the data mixing automatic retransmission receiving terminal feeds back;
Data mixing automatic retransmission receiving terminal 2: the receiving terminal of data mixing automatic retransmission described in the present invention comprises:
Receiving element 21, receiving element 21 is described among the present invention is used to receive data;
Determination information acquiring unit 23, the acquiring unit of determination information described in the present invention 23 is mainly used in decapsulation and receives data to obtain determination information, during specific implementation, described determination information acquiring unit 23 can include judging unit, described judging unit is mainly used in checks in the new data that receives whether carry determination information, and acquiring unit, be checked through at judging unit and continue to obtain described determination information when in the new data determination information being arranged;
Check processing unit 24, check described in the present invention that processing unit 24 is mainly used in according to described determination information and check that whether decision error or data retransmission number of times have reached maximum retransmission to transmitting terminal, and in check result when being, indication feedback unit notice transmitting terminal decision error, or the high-rise request retransmission unit automatically of directly notifying transmitting terminal to carry out data re-transmission or notice receiving terminal carries out the automatic request retransmission of data, during specific implementation, described feedback unit 22 functions can be integrated in checks processing unit 24 realizations, promptly check after processing unit 24 receives data and promptly judge whether to receive correct data, and the status report of Data Receiving fed back to transmitting terminal, and described inspection processing unit also judge transmitting terminal to the feedback information of last data of receiving terminal feedback judge whether correctly, and when the transmitting terminal decision error, indicate transmitting terminal.
Following detailed inspection processing unit, with reference to figure 8, this figure is that the present invention checks that a kind of embodiment of processing unit forms schematic diagram, specifically comprises:
First indicating member 2412, described indicating member 242 are mainly used in if the inspection unit testing result is for being, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
In addition, with reference to figure 9, this figure is that the present invention checks that the another kind of embodiment of processing unit forms schematic diagram, specifically comprises:
Second inspection unit 2421, if the judgment unit judges result is for being, whether the inspection transmitting terminal decision error;
Second indicating member 2422, if inspection unit 2421 check results for be or the judgment unit judges result for not, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
With a concrete example principle of the invention is further specified below.
With reference to Figure 10, this figure is an embodiment schematic diagram of the present invention's transmitting terminal and receiving terminal interaction data when carrying out data mixing automatic retransmission.
The HARQ receiving terminal is received error block (No. 1), feedback NACK;
The HARQ transmitting terminal is received ACK if judge, be that data correctly send, this data block of buffer memory (No. 1) then, and in the data block (No. 2) of New Development, add the determination information of transmitting terminal, perhaps after receiving NACK and surpassing maximum retransmission (No. 3), also can in the data block (No. 4) of New Development, add determination information;
The HARQ receiving terminal is received correct data block (No. 2), judge whether decision error of HARQ transmitting terminal according to determination information, if determine the HARQ transmitting terminal NACK erroneous judgement is ACK, then notify the HARQ transmitting terminal, promptly send the false dismissal indication to the HARQ transmitting terminal, if surpass the reason of maximum retransmission, then do not send out the false dismissal indication.
The HARQ transmitting terminal is received the false dismissal indication, retransmits this data block (No. 1).
Need illustrate, in the present embodiment, when the HARQ transmitting terminal is received ACK, also these data of buffer memory not, the HARQ receiving terminal is received behind the determination information of HARQ transmitting terminal according to described determination information and is judged whether decision error of HARQ transmitting terminal, if the transmitting terminal decision error is not then sent out the false dismissal indication, but notice receiving terminal ARQ this loss of data of unit starts ARQ and retransmits.
In addition,, can give tacit consent to sending the false dismissal indication, repeat no more here if the HARQ receiving terminal is not received the determination information (being the decision data drop-out) of transmitting terminal in new data.
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 improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1, a kind of data mixture automatic retransmission method is characterized in that, comprising:
A, transmitting terminal send data;
B, receiving terminal receive data and to the transmitting terminal condition report feedback;
C, transmitting terminal differentiate the feedback information of the status report of receiving terminal feedback, and send follow-up supervention and give next data in that decision data is correct, when sending next data with the determination information notice receiving terminal of transmitting terminal;
D, receiving terminal check whether decision error of transmitting terminal according to the described determination information of transmitting terminal feedback, and notify transmitting terminal to carry out data re-transmission in check result when being.
2, data mixture automatic retransmission method according to claim 1 is characterized in that, the determination information of the receiving terminal of notice described in step c transmitting terminal is: when sending next data, add described determination information in the New Development data.
3, data mixture automatic retransmission method according to claim 2 is characterized in that, send next data among the step c and also comprise before: buffer memory is judged the data that correctly send.
4, according to claim 2 or 3 described data mixture automatic retransmission methods, it is characterized in that steps d specifically comprises:
D11, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
D12, receiving terminal check whether decision error of transmitting terminal according to described determination information, and in check result for being that the back notifies transmitting terminal to carry out data re-transmission.
5, according to claim 2 or 3 described data mixture automatic retransmission methods, it is characterized in that steps d specifically comprises:
D21, receiving terminal receive new data and check whether carry determination information in the described new data, if check result is to carry determination information in the described new data, then execution in step d22 is not carry determination information in the described new data as if check result, then execution in step d23;
D22, receiving terminal check whether decision error of transmitting terminal according to described determination information, and in check result for being back execution in step d23;
D23, notice transmitting terminal carry out data re-transmission.
6, data mixture automatic retransmission method according to claim 1 is characterized in that, correctly receives then feedback acknowledgment information of data as if receiving terminal in the condition report feedback of step b receiving terminal feedback, otherwise, do not feed back.
7, a kind of data mixture automatic retransmission method is characterized in that, comprising:
A, transmitting terminal send data;
B, receiving terminal receive data and to the transmitting terminal condition report feedback;
C, transmitting terminal are differentiated the feedback information of the status report of receiving terminal feedback, and in the correct transmission of decision data or data transmission errors but transmitting terminal data retransmission number of times has reached the follow-up supervention of maximum retransmission gives next data, the determination information of notice receiving terminal transmitting terminal when sending next data;
D, receiving terminal according to the described determination information of transmitting terminal feedback check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and be that the high-rise request retransmission unit automatically of notice receiving terminal when being carries out the automatic request retransmission of data in check result.
8, data mixture automatic retransmission method according to claim 7 is characterized in that, the determination information of the receiving terminal of notice described in step C transmitting terminal is: when sending next data, add described determination information in the New Development data.
9, according to claim 7 or 8 described data mixture automatic retransmission methods, it is characterized in that step D specifically comprises:
D11, receiving terminal receive new data and resolve the determination information that obtains the transmitting terminal feedback;
D12, receiving terminal according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and in check result for being that notice receiving terminal high-rise automatic request retransmission unit in back carries out the automatic request retransmission of data.
10, according to claim 7 or 8 described data mixture automatic retransmission methods, it is characterized in that step D specifically comprises:
D21, receiving terminal receive new data and check whether carry determination information in the described new data, if check result is to carry determination information in the described new data, then execution in step D22 is not carry determination information in the described new data as if check result, then execution in step D23;
D22, receiving terminal according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and in check result for being back execution in step D23;
D23, the high-rise request retransmission unit automatically of notice receiving terminal carry out the automatic request retransmission of data.
11, data mixture automatic retransmission method according to claim 7 is characterized in that, correctly receives then feedback acknowledgment information of data as if receiving terminal in the condition report feedback of step B receiving terminal feedback, otherwise, do not feed back.
12, a kind of data mixing automatic retransmission device comprises data mixing automatic retransmission transmitting terminal and data mixing automatic retransmission receiving terminal, it is characterized in that, described data mixing automatic retransmission transmitting terminal comprises:
Transmitting element is used to send data;
Receiving element is used to receive the status report that the data mixing automatic retransmission receiving terminal feeds back;
Encapsulation unit is used in the New Development data encapsulation correct transmission of decision data or data transmission errors but transmitting terminal data retransmission number of times has reached the determination information of maximum retransmission;
The judgment processing unit, be used to differentiate the feedback information of the status report of receiving terminal feedback, judge whether correctly to send data or judgment data and send wrong transmitting terminal data retransmission number of times and whether reached maximum retransmission, and in judged result for after being, the indication encapsulation unit encapsulates;
Described data mixing automatic retransmission receiving terminal comprises:
Receiving element is used to receive data;
Feedback unit is used for to the transmitting terminal condition report feedback;
The determination information acquiring unit is used for decapsulation and receives data to obtain determination information;
Check processing unit, be used for according to described determination information check transmitting terminal whether decision error or data retransmission number of times reached maximum retransmission, and be that the high-rise request retransmission unit automatically that the notice transmitting terminal carries out data re-transmission or notice receiving terminal when being carries out the automatic request retransmission of data in check result.
13, data mixing automatic retransmission device according to claim 12 is characterized in that, described inspection processing unit specifically comprises:
Inspection unit is used for receiving terminal and checks that whether decision error or data retransmission number of times have reached maximum retransmission to transmitting terminal;
Indicating member, if the inspection unit testing result is for being, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
14, data mixing automatic retransmission device according to claim 12 is characterized in that, the determination information acquiring unit includes:
Judging unit is used for judging whether the new data of reception carries determination information;
Acquiring unit for after being, obtains the determination information that carries in the new data in judgment unit judges.
15, data mixing automatic retransmission device according to claim 14 is characterized in that, described detection processing unit specifically comprises:
Inspection unit, if the judgment unit judges result is for being, whether the inspection transmitting terminal decision error;
Indicating member, if the inspection unit check result for be or the judgment unit judges result for not, the high-rise automatic request retransmission unit that the indication transmitting terminal carries out data re-transmission or indication receiving terminal carries out the automatic request retransmission of data.
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| CN 200610035073 CN101060388A (en) | 2006-04-19 | 2006-04-19 | Hybrid data automatic forward method and device |
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Cited By (9)
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| CN101394299A (en) * | 2008-10-13 | 2009-03-25 | 北京邮电大学 | Application of network encoding and constellation overlapped encoding combination in mobile communication |
| CN101521808A (en) * | 2008-02-26 | 2009-09-02 | 立积电子股份有限公司 | Error resilient video transmission system and method using instantaneous receiver feedback |
| WO2010025679A1 (en) * | 2008-09-05 | 2010-03-11 | 华为技术有限公司 | Method for processing abnormality during the radio link control data block transmission |
| CN107710721A (en) * | 2015-08-21 | 2018-02-16 | 华为技术有限公司 | A kind of information processing method, device and system |
| CN107733585A (en) * | 2016-08-12 | 2018-02-23 | 中兴通讯股份有限公司 | The sending, receiving method and device of HARQ information |
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