CN103023625A - Method and device for triggering and structuring automatic retransmission query state report - Google Patents
Method and device for triggering and structuring automatic retransmission query state report Download PDFInfo
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- CN103023625A CN103023625A CN2011102814157A CN201110281415A CN103023625A CN 103023625 A CN103023625 A CN 103023625A CN 2011102814157 A CN2011102814157 A CN 2011102814157A CN 201110281415 A CN201110281415 A CN 201110281415A CN 103023625 A CN103023625 A CN 103023625A
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Abstract
The invention discloses a method and a device for triggering and structuring an automatic retransmission query state report. The method comprises the following steps of: judging whether remainder vent bandwidths exist by an ARQ (automatic retransmission query) state report sending terminal after finishing downlink scheduling or uplink scheduling, and in the case that the remainder vent bandwidths exist and are greater than a first predetermined bandwidth, triggering and structuring the ARQ state report; and judging whether the remainder vent bandwidths meet an ARQ state report sending need, if so, sending the ARQ state report, or else, cancelling the sending of the ARQ state report. According to the invention, on the basis of no additional bandwidth expense, the timeliness of the ARQ state report is further improved, and the retransmission time delay of the ARQ is reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device that triggers the structure automatic retransmission request status report.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in the system, transmitting for data, introduced ARQ (Automatic Repeat-Request, HARQ) function, the ARQ function is divided into transmitting terminal and receiving terminal, receiving terminal can send the ARQ status report of data receiver under certain condition to transmitting terminal, wherein, comprised the information which data is which data normally received and be not received, the status report that transmitting terminal (being ARQ status report receiving terminal) is sent according to receiving terminal (being ARQ status report transmitting terminal) carries out data re-transmission, and then reaches the purpose of transmitting.Because the ARQ status report can directly affect the time that ARQ carries out data re-transmission, and then affects the delay time and jitter of upper layer application, so the promptness of ARQ status report is extremely important.
At present, the condition that triggers receiving terminal structure ARQ status report in the LTE system is, receive the ARQ status report request indication P that transmitting terminal sends, the regulation transmitting terminal can send ARQ status report request indication P in the agreement " 3GPP TS 36.322 " in following two kinds of situations: the one, and transmitting terminal sent the request of ARQ status report from last time, the new PDU number that sends reaches threshold value N, perhaps, the new data of transmission size accumulative total reaches threshold value M; The 2nd, all data cached being sent out of transmitting terminal are finished;
Said method mainly is the poll triggering receiving terminal structure ARQ status report by transmitting terminal, and this poll is subject to threshold value M and N, if it is very large that threshold value configures, and can cause the ARQ status report untimely, the traffic affecting delay time and jitter; If the threshold value configuration is very little, can cause again frequently carrying out the ARQ status report, the waste bandwidth of air-interface.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of method and device that triggers the structure automatic retransmission request status report, is used for solving that prior art exists because the untimely or too frequent problem of bringing of ARQ status report.
Purpose of the present invention mainly is achieved through the following technical solutions:
The invention provides a kind of method that triggers structure HARQ ARQ status report, comprising:
Steps A: after finishing downlink or uplink scheduling, ARQ status report transmitting terminal has judged whether the residue bandwidth of air-interface, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report;
Step B: judge whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then send the ARQ status report, otherwise cancellation sends the ARQ status report.
Further, described triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
Further, trigger for forward direction, ARQ status report transmitting terminal is evolved base station eNB, and described steps A specifically comprises:
After eNB finishes descending scheduling, judged whether residue downlink space interface bandwidth, if have and greater than the first bandwidth value, then according to pre-defined rule the terminal of using the ARQ function is sorted, and according to ordering successively successively for the terminal constructions ARQ status report of each described use ARQ function and trigger execution in step B.
Further, for reverse triggering, described ARQ status report transmitting terminal is for using the terminal of ARQ function, and described steps A specifically comprises:
The terminal of using the ARQ function is distributed to residue ascending idle port bandwidth in the base station by the second bandwidth value after being the complete bandwidth of all terminal distribution, until all residue ascending idle port allocated bandwidth are complete or all use the terminal of ARQ function all to be assigned with;
Use the terminal of ARQ function after finishing uplink scheduling, judged whether residue ascending idle port bandwidth, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report.
Wherein, described pre-defined rule is that eNB sent the time order and function order of ARQ status report last time.
Described the first bandwidth value sends the minimum value that needs more than or equal to the ARQ status report.
Described the second bandwidth value is more than or equal to the first bandwidth value.
The present invention also provides a kind of device that triggers structure HARQ ARQ status report, comprising: first judges processing unit and the second judgement processing unit, wherein,
Described first judges processing unit, be used for finish descending or on behind the dispatching, judged whether the residue bandwidth of air-interface, when being determined with and during greater than predetermined bandwidth of air-interface value, triggering structure ARQ status report and also trigger described the second judgement processing unit;
Described second judges processing unit, is used for judging whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then send the ARQ status report, otherwise cancellation sends the ARQ status report.
Further, described triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
Further, trigger for forward direction, described first judges that processing unit specifically is used for, after evolved base station is finished descending scheduling, judged whether residue downlink space interface bandwidth, if have and greater than the first bandwidth value, then according to pre-defined rule the terminal of using the ARQ function is sorted, and according to ordering successively successively for the terminal constructions ARQ status report of each described use ARQ function and trigger described second and judge processing unit.
Further, for reverse triggering, described first judges that processing unit specifically is used for, after evolved base station is being the complete bandwidth of all terminal distribution, residue ascending idle port bandwidth is distributed to the terminal of using the ARQ function by the second bandwidth value, until all residue ascending idle port allocated bandwidth are complete or all use the terminal of ARQ function all to be assigned with; And terminal is after finishing uplink scheduling, judged whether residue ascending idle port bandwidth, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report.
Beneficial effect of the present invention is as follows:
The present invention further promotes the promptness of ARQ status report on the basis of not bringing the extra bandwidth expense, reduced the retransmission delay time of ARQ.
Other features and advantages of the present invention will be set forth in the following description, and becoming apparent from specification of part perhaps understood by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Fig. 1 is in the described method of the embodiment of the invention, and forward direction triggers the schematic flow sheet of structure ARQ status report;
Fig. 2 is in the described method of the embodiment of the invention, oppositely triggers the schematic flow sheet of structure ARQ status report;
Fig. 3 is the structural representation of the described device of the embodiment of the invention.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing consists of the application's part, and is used for explaining together with embodiments of the present invention principle of the present invention.
1 and 2 pair of described method of the embodiment of the invention is elaborated at first by reference to the accompanying drawings.
The described method of the embodiment of the invention mainly comprises: after finishing downlink or uplink scheduling, ARQ status report transmitting terminal has judged whether the residue bandwidth of air-interface, when being determined with and during greater than the first bandwidth value structure ARQ status report; Judge whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then trigger sending the ARQ status report, otherwise cancellation sends the ARQ status report.Wherein, described triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
Trigger structure ARQ status report for forward direction, ARQ status report transmitting terminal is eNB (evolved base station), ARQ status report receiving terminal is for using the UE (terminal) of ARQ function, specifically as shown in Figure 1, Fig. 1 is the schematic flow sheet that forward direction triggers structure ARQ status report, can comprise the steps:
Step 101:eNB carries out descending scheduling according to current channel situation to each UE;
After step 102:eNB finishes descending scheduling, if the downlink space interface bandwidth has residue, judge that whether residue downlink space interface bandwidth is more than or equal to K (K is the minimum amount of bandwidth that the ARQ status report sends to be needed), if, execution in step 103, otherwise flow process finishes;
Step 103:eNB travels through all UE, selects the UE that uses the ARQ function and consists of alternative UE group;
Step 104: the time order and function that sent the ARQ status report according to eNB last time sorts to corresponding UE in the alternative UE group, and is more forward with the UE ordering that the current time is poor larger;
Step 105:eNB takes out the UE that comes foremost from alternative UE group, and for the carrying of the ARQ among UE structure ARQ status report;
Step 106: judge whether residue downlink space interface bandwidth satisfies the ARQ status report and send needs (different ARQ status reports is because how much different content is, and it is also different that it sends the bandwidth that needs), if so, and execution in step 107, otherwise flow process finishes;
Step 107:eNB uses remaining bandwidth to be this UE structure ARQ status report, new remaining bandwidth=former remaining bandwidth-ARQ status report occupied bandwidth;
Step 109: judge in the alternative UE group whether also have UE, if so, forward step 105 to, otherwise flow process finishes.
For reverse triggering structure ARQ status report, ARQ status report transmitting terminal is for using the UE of ARQ function, and as shown in Figure 2, Fig. 2 is the schematic flow sheet that oppositely triggers structure ARQ status report, specifically can comprise:
Step 201:eNB carries out upstream bandwidth to each UE and distributes;
Step 202: after finishing upstream bandwidth and distributing, judged whether residue ascending idle port bandwidth, if having and size or more than or equal to S (S is more than or equal to K), then execution in step 203, otherwise, execution in step 205;
Step 203: travel through all UE, select the UE that uses the ARQ function and consist of alternative UE group;
Step 204: will remain the ascending idle port bandwidth and be divided into big or small I the part of S that be;
Whether step 205:I more than or equal to the UE number in the alternative UE group, if so, and execution in step 206; Otherwise execution in step 208;
Step 206: each UE that is followed successively by in the alternative UE group distributes the residue ascending idle port bandwidth that size is S;
Step 207: from alternative UE group, select at random I UE, for each UE that selects distributes the residue ascending idle port bandwidth that size is S; Above step 202 to 207 mainly is in order to increase the frequency of occurrences of up residue bandwidth of air-interface;
Step 208:UE carries out uplink scheduling;
Step 209: after uplink scheduling is finished, use the UE of ARQ function to judge whether residue ascending idle port bandwidth, if having and size greater than K, then execution in step 210, otherwise flow process finishes;
Step 210: use the UE of ARQ function to trigger structure ARQ status report;
Step 211: whether residue ascending idle port bandwidth satisfies the required bandwidth of ARQ status report, if so, execution in step 211, otherwise cancellation sends the ARQ status report, and flow process finishes;
Step 212: send the ARQ status report.
Be elaborated below in conjunction with 3 pairs of described devices of the embodiment of the invention of accompanying drawing.
As shown in Figure 3, Fig. 3 is the structural representation of the described device of the embodiment of the invention, specifically can comprise: first judges processing unit and the second judgement processing unit, wherein,
First judges processing unit, be used for finish descending or on behind the dispatching, judged whether the residue bandwidth of air-interface, when being determined with and during greater than predetermined bandwidth of air-interface value, triggering structure ARQ status report and also trigger the second judgement processing unit;
Second judges processing unit, is used for judging whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then send the ARQ status report, otherwise cancellation sends the ARQ status report.
Wherein, triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
Then trigger for forward direction, first judges that processing unit specifically is used for, after evolved base station is finished descending scheduling, judged whether residue downlink space interface bandwidth, if have and greater than the first bandwidth value, then according to pre-defined rule the terminal of using the ARQ function is sorted, and successively use the terminal constructions ARQ status report of ARQ function for each successively and trigger the second judgement processing unit according to ordering.
For reverse triggering, first judges that processing unit specifically is used for, after evolved base station is being the complete bandwidth of all terminal distribution, residue ascending idle port bandwidth is distributed to the terminal of using the ARQ function by the second bandwidth value, until all residue ascending idle port allocated bandwidth are complete or all use the terminal of ARQ function all to be assigned with; And after terminal is finished uplink scheduling, judged whether residue ascending idle port bandwidth, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report.
In sum, the embodiment of the invention provides a kind of method and device that triggers the structure automatic retransmission request status report, on the basis of not bringing the extra bandwidth expense, further promotes the promptness of ARQ status report, has reduced the retransmission delay time of ARQ.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (11)
1. a method that triggers structure HARQ ARQ status report is characterized in that, comprising:
Steps A: after finishing downlink or uplink scheduling, ARQ status report transmitting terminal has judged whether the residue bandwidth of air-interface, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report;
Step B: judge whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then send the ARQ status report, otherwise cancellation sends the ARQ status report.
2. method according to claim 1 is characterized in that, described triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
3. method according to claim 2 is characterized in that, triggers for forward direction, and ARQ status report transmitting terminal is evolved base station eNB, and described steps A specifically comprises:
After eNB finishes descending scheduling, judged whether residue downlink space interface bandwidth, if have and greater than the first bandwidth value, then according to pre-defined rule the terminal of using the ARQ function is sorted, and according to ordering successively successively for the terminal constructions ARQ status report of each described use ARQ function and trigger execution in step B.
4. method according to claim 2 is characterized in that, for reverse triggering, described ARQ status report transmitting terminal is for using the terminal of ARQ function, and described steps A specifically comprises:
The terminal of using the ARQ function is distributed to residue ascending idle port bandwidth in the base station by the second bandwidth value after being the complete bandwidth of all terminal distribution, until all residue ascending idle port allocated bandwidth are complete or all use the terminal of ARQ function all to be assigned with;
Use the terminal of ARQ function after finishing uplink scheduling, judged whether residue ascending idle port bandwidth, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report.
5. method according to claim 3 is characterized in that, described pre-defined rule is that eNB sent the time order and function order of ARQ status report last time.
6. according to claim 1 or 3 or 4 described methods, it is characterized in that, described the first bandwidth value sends the minimum value that needs more than or equal to the ARQ status report.
7. method according to claim 4 is characterized in that, described the second bandwidth value is more than or equal to the first bandwidth value.
8. a device that triggers structure HARQ ARQ status report is characterized in that, comprising: first judges processing unit and the second judgement processing unit, wherein,
Described first judges processing unit, be used for finish descending or on behind the dispatching, judged whether the residue bandwidth of air-interface, when being determined with and during greater than predetermined bandwidth of air-interface value, triggering structure ARQ status report and also trigger described the second judgement processing unit;
Described second judges processing unit, is used for judging whether the residue bandwidth of air-interface satisfies the ARQ status report and send needs, if satisfy, then send the ARQ status report, otherwise cancellation sends the ARQ status report.
9. device according to claim 8 is characterized in that, described triggering structure ARQ status report comprises: forward direction triggers and oppositely triggers.
10. device according to claim 9, it is characterized in that, trigger for forward direction, described first judges that processing unit specifically is used for, after evolved base station is finished descending scheduling, judged whether residue downlink space interface bandwidth, if having and greater than the first bandwidth value, then according to pre-defined rule the terminal of using the ARQ function is sorted, and according to ordering successively successively for the terminal constructions ARQ status report of each described use ARQ function and trigger described second and judge processing unit.
11. device according to claim 9, it is characterized in that, for reverse triggering, described first judges that processing unit specifically is used for, after evolved base station is being the complete bandwidth of all terminal distribution, residue ascending idle port bandwidth is distributed to the terminal of using the ARQ function by the second bandwidth value, until all residue ascending idle port allocated bandwidth are complete or all use the terminal of ARQ function all to be assigned with; And after terminal is finished uplink scheduling, judged whether residue ascending idle port bandwidth, when being determined with and during greater than the first bandwidth value, triggering structure ARQ status report.
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| CN101047484A (en) * | 2006-06-21 | 2007-10-03 | 华为技术有限公司 | Transmission layer retransmission method and system |
| CN101217791A (en) * | 2008-01-15 | 2008-07-09 | 中兴通讯股份有限公司 | Allocation request method of the connectable upstream bandwidth based on ARQ |
| CN101663907A (en) * | 2007-03-19 | 2010-03-03 | 艾利森电话股份有限公司 | Using an uplink grant as trigger of first or second type of cqi report |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1700627A (en) * | 2004-05-18 | 2005-11-23 | 华为技术有限公司 | A method for transmitting status report |
| CN101047484A (en) * | 2006-06-21 | 2007-10-03 | 华为技术有限公司 | Transmission layer retransmission method and system |
| CN101663907A (en) * | 2007-03-19 | 2010-03-03 | 艾利森电话股份有限公司 | Using an uplink grant as trigger of first or second type of cqi report |
| CN101217791A (en) * | 2008-01-15 | 2008-07-09 | 中兴通讯股份有限公司 | Allocation request method of the connectable upstream bandwidth based on ARQ |
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