CN102595603A - Transmission control method and device of buffer state report (BSR) - Google Patents
Transmission control method and device of buffer state report (BSR) Download PDFInfo
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- CN102595603A CN102595603A CN2012100151036A CN201210015103A CN102595603A CN 102595603 A CN102595603 A CN 102595603A CN 2012100151036 A CN2012100151036 A CN 2012100151036A CN 201210015103 A CN201210015103 A CN 201210015103A CN 102595603 A CN102595603 A CN 102595603A
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Abstract
The invention discloses a transmission control method and a transmission control device of buffer state report (BSR), wherein the method and device are used for adjusting physical resources which transmit BSR to increase transmission chances of the BSR, so that the transmission success rate of the BSR is improved. The transmission control method of BSR comprises the steps of: distributing a physical uplink shared channel (PUSCH) resource for a terminal when a schedule requirement (SR) transmitted by the terminal is received, and sending a UL-GRANT which carries a PUSCH resource indication distributed for the terminal to the terminal; detecting a decoding result of BSR transmitted by the terminal via the PUSCH resource; judging whether the sending of the UL-GRANT is continued or not, and adjusting PUSCH resource positions distributed for the terminal.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of buffer status report (Buffer Status Reports, transfer control method BSR) and device.
Background technology
(Transfer Control Protocol, TCP) in the professional transmission course, transmitting terminal needs receiving terminal to feed back just can continue new transfer to transmission control protocol, if feedback does not have the timely transmitting terminal that arrives, then can cause sending out receiving to hold and carry out the TCP re-transmission.In the LTE system; If current do not have a uplink service; Then descending TCP traffic transmission feedback will make the terminal produce conventional buffer status report (Buffer Status Reports, BSR), after timer retxBSR-Timer is overtime; Dispatch request (the Scheduling Request that trigger through conventional BSR at the terminal; SR) obtain uplink scheduling permission (UL-GRANT), and BSR is reported to the base station, to obtain the feedback information that further UL-GRANT transmits descending TCP at corresponding physical uplink link sharing channel (PUSCH).
After if the terminal obtains UL-GRANT through SR; BSR on corresponding PUSCH through the automatic repeat requests (Hybrid-ARQ of mix; HARQ) still bust this of the transmission of maximum transmission times need wait for that then retxBSR-Timer triggers SR after overtime again and obtains UL-GRANT.Because the up feedback information that can't transmit descending TCP in terminal; Descending TCP can only carry out TCP at this section before timer retxBSR-Timer is overtime and retransmit in the period; Owing to regulation timer retxBSR-Timer minimal time delay in the agreement is 320ms, therefore bigger shake will appear in descending TCP business simultaneously.
Provide below and specify.
In the LTE system, the terminal needed elder generation through reporting BSR to obtain the UL-GRANT that the base station issues before carrying out transmitting uplink data, and terminal to report BSR obtains UL-GRANT has following two kinds of situation:
As shown in Figure 1; If current have no UL-GRANT; The conventional BSR that the terminal produces will trigger SR and start timer retxBSR-Timer (the retxBSR-Timer duration is confirmed by agreement TS36.331); The base station is terminal distribution PUSCH resource and issues UL-GRANT that the terminal is at the corresponding PUSCH resource reporting BSR of UL-GRANT, if BSR is through the still error of transmission of transmission of HARQ maximum transmission times (being generally 4 times) after receiving SR; Need wait until that then retxBSR-Timer obtains UL-GRANT by conventional BSR triggering SR after overtime again, and any uplink will not be carried out at the terminal before retxBSR-Timer is overtime.If the terminal is correct in the corresponding PUSCH transmitted over resources of UL-GRANT, then the BSR at terminal can be known in the base station, and then continues the terminal distribution ascending resource and issue UL-GRANT.
As shown in Figure 2; If currently had a continuous UL-GRANT; Timer periodicBSR-Timer (TS36.321 agreement regulation will be restarted in the terminal after reporting BSR; Be used for regulation BSR on call time) with retxB SR-Timer (duration of periodicB SR-Timer and retxB SR-Timer by TS36.331 definite); The terminal will produce BSR again and upload this BSR in the corresponding PUSCH resource of UL-GRANT behind any timer expiry, the base station with this BSR known and the BSR of knowing before comprehensive after, continue the terminal distribution resource and issue UL-GRANT.
In sum; As shown in Figure 3, if after the terminal obtains UL-GRANT through SR, the transmission of BSR process HARQ maximum transmission times on corresponding PUSCH; Still bust this; Therefore then BSR can't be known in the base station, also can not give the terminal distribution ascending resource, and the terminal is uploaded BSR again and need be waited for that retxBSR-Timer is overtime again and afterwards trigger SR and obtain UL-GRANT.Therefore, can have influence on business transmission during the retxBSR-Timer timing.For example; Because the up feedback information that can't transmit descending TCP in terminal; Descending TCP can only carry out TCP at this section before timer retxBSR-Timer is overtime and retransmit in the period; Owing to regulation timer retxBSR-Timer minimal time delay in the agreement is 320ms, therefore bigger shake will appear in descending TCP business simultaneously.
Summary of the invention
The embodiment of the invention provides transfer control method and the device of a kind of BSR, in order to the physical resource through adjustment transmission BSR, increases the transmission opportunity of BSR, thereby improves the transmission success rate of BSR.
The transfer control method of a kind of BSR that the embodiment of the invention provides comprises:
When receiving the dispatch request SR that send at the terminal, be terminal distribution Physical Uplink Shared Channel PUSCH resource, and issue UL-GRANT to the terminal, wherein carry PUSCH resource indication into this terminal distribution;
The decode results of sense terminals through PUSCH BSR that resource is transmitted judges whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result.
The transmission control unit of a kind of BSR that the embodiment of the invention provides comprises:
The initial treatment unit is used for when receiving the dispatch request SR that send at the terminal, being terminal distribution Physical Uplink Shared Channel PUSCH resource, and issues UL-GRANT to the terminal, wherein carries the PUSCH resource indication into this terminal distribution;
Detect processing unit, be used for the decode results of sense terminals, judge whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result through PUSCH BSR that resource is transmitted.
The embodiment of the invention through when receiving the dispatch request SR that send at the terminal, is terminal distribution Physical Uplink Shared Channel PUSCH resource, and issues UL-GRANT to the terminal, wherein carries the PUSCH resource into this terminal distribution; Sense terminals is through the decode results of PUSCH BSR that resource is transmitted; Judge whether to be adjusted into the PUSCH resource of terminal distribution according to testing result; Physical resource through adjustment transmission BSR; Increase the transmission opportunity of BSR, thereby improved the transmission success rate of BSR, increased the transmission robustness of the up BSR in terminal; Thereby can under the relatively poor situation of uplink signal-channel quality, dwindle up TCP traffic transmission time delay, eliminate the professional transmission of the descending TCP unsteadiness of bringing because of up feedback is untimely.And the technical scheme that the embodiment of the invention provides is easy to realize, is convenient to product up-gradation.
Description of drawings
Fig. 1 is not for to exist the BSR under the Ul-Grant situation to report sketch map;
Fig. 2 exists the BSR under the Ul-Grant situation to report sketch map;
Fig. 3 is the professional laser propagation effect sketch map of TCP in the prior art;
The professional laser propagation effect sketch map of TCP that Fig. 4 provides for the embodiment of the invention;
The overall procedure sketch map of the transfer control method of the BSR that Fig. 5 provides for the embodiment of the invention;
The idiographic flow sketch map of the transfer control method of the BSR that Fig. 6 provides for the embodiment of the invention;
The structural representation of the transmission control unit of the BSR that Fig. 7 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides transfer control method and the device of a kind of BSR, in order to the physical resource through adjustment transmission BSR, increases the transmission opportunity of BSR, thereby improves the transmission success rate of BSR.
The transmission result of BSR on PUSCH that the embodiment of the invention triggers through monitoring SR; Take adaptive mode to increase the transmission opportunity of BSR; And the physical resource of adjustment transmission BSR, before timer retxBSR-Timer is overtime, report opportunity of success thereby improve BSR, as shown in Figure 4.
Below in conjunction with accompanying drawing the technical scheme that the embodiment of the invention provides is elaborated.
As shown in Figure 5, the transfer control method of a kind of buffer status report BSR that the embodiment of the invention provides comprises step:
S101, when receiving the dispatch request SR that send at the terminal, be terminal distribution Physical Uplink Shared Channel PUSCH resource, and issue UL-GRANT and give the terminal, wherein carry PUSCH resource indication into this terminal distribution;
S102, sense terminals be through the decode results of PUSCH BSR that resource is transmitted, judges whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result.
Preferably, when UL-GRANT successfully was handed down to said terminal, sense terminals was through the decode results of PUSCH BSR that resource is transmitted.
Preferably, when UL-GRANT successfully is handed down to said terminal, make the corresponding BSR transmission counter in this terminal add 1;
The decode results of said sense terminals through PUSCH BSR that resource is transmitted judges whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result, comprising:
Whether judge the terminal correctly through PUSCH resource transmission BSR, if, then make the corresponding BSR transmission counter O reset in this terminal, and end operation; Otherwise, do not reach at the corresponding BSR transmission counter in this terminal under the situation of preset count threshold, continue as terminal distribution UL-GRANT and be adjusted into the PUSCH resource of this terminal distribution.
Preferably, saidly judge that the terminal whether correctly through PUSCH resource transmission BSR, comprising:
Judge that through the automatic repeat requests HARQ maximum retransmission of up mixing whether the terminal is all correctly through PUSCH resource transmission BSR, if explain that then the terminal is correctly through PUSCH resource transmission BSR; Otherwise, explain that the terminal is incorrect in PUSCH resource transmission BSR.
Preferably, when confirm the PUSCH resource location that continues to issue UL-GRANT and be adjusted into terminal distribution according to testing result after, also comprise:
Again sense terminals is through the decode results of the PUSCH BSR that resource is transmitted that redistributes.
As shown in Figure 6, the idiographic flow of the transfer control method of the BSR that the embodiment of the invention provides comprises:
The SR of S201, base station receiving terminal;
S202, base station will be the quantity (PRB_NUM) of the PRB of terminal distribution, and value is PRB_SRASSIGN, and (value is MCS_SRASSIGN for Modulation and Coding Scheme, MCS) grade (MCS_NUM) for the adjustment coded system of terminal distribution.
S203, base station are the up PUSCH resource of terminal distribution, comprise PRB and MCS grade.Wherein, the quantity of the PRB of distribution is designated as PRB_SRASSIGN, and the MCS grade is designated as MCS_SRASSIGN.
S204, judge whether UL-GRANT issues successfully (for the terminal distribution resource can think that UL-GRANT issues successfully), if, execution in step S205 then, otherwise, finish.
S205, after UL-GRANT successfully issues; The counter BSR_TransCounter at base station initiated this terminal; Make the count value of counter BSR_TransCounter add 1; And the transmission situation of the packet that comprises BSR of sense terminals transmission on the corresponding PUSCH resource of UL-GRANT, i.e. execution in step S206:
S206, judge whether the packet comprise BSR through ascending HARQ maximum retransmission (for example can be 4 times) transmission (UlHARQ_MaxTxNum), all transmit correctly, if, execution in step S209 then, otherwise, execution in step S207.
If S207 comprises after the transmission of packet through ascending HARQ maximum retransmission (UlHARQ_MaxTxNum) of BSR, still pass mistake, whether the count value of then judging counter BSR_TransCounter is greater than BSR_MaxTransTHR; Wherein, BSR_MaxTransTHR representes the count threshold (for example: 10 times) preset, if, execution in step S209 then; Otherwise, execution in step S208.
S208, when the count value of counter BSR_TransCounter is not more than BSR_MaxTransTHR; The base station will continue as this terminal distribution PUSCH resource, and wherein, the quantity of the PRB of distribution is PRB_SRASSIGN+PRB_Increase; Wherein, When PRB_Increase represented at every turn for terminal distribution PRB, the PRB quantity of increase for example can increase by 1～5 at every turn; MCS grade value is MCS_SRASSIGN+MCS_Decrease, and when wherein MCS_Decrease represented at every turn for terminal distribution MCS grade, the grade of increase for example can increase by 1～5 grade at every turn.
If S209 comprises after the transmission of packet through ascending HARQ maximum retransmission (UlHARQ_MaxTxNum) of BSR; Still pass wrong; And when the count value of counter BSR_TransCounter during greater than BSR_MaxTransTHR; Counter BSR_TransCounter stops counting and the count value zero clearing of BSR_TransCounter.
Perhaps; If the packet that comprises BSR is through after ascending HARQ maximum retransmission (for example can the be 4 times) transmission (UlHARQ_MaxTxNum), the data packet transmission that comprises BSR is correct, and counter BSR_TransCounter is stopped; And, the zero clearing of BSR_TransCounter count value.
Adjusted to after the PUSCH resource of terminal distribution at step S208; When issuing UL-GRANT for the terminal once more; And after successfully issuing; The base station makes counter BSR_TransCounter count value add 1, and the transmission correctness of the packet that comprises BSR on the corresponding PUSCH resource of UL-GRANT of sending out according to the terminal carries out above-mentioned processing.
And the base station receives before the SR at terminal that the base station is not this terminal distribution PUSCH resource.
Referring to Fig. 7, the transmission control unit of a kind of buffer status report BSR that the embodiment of the invention provides comprises:
Detect processing unit 12, be used for the decode results of sense terminals, judge whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result through PUSCH BSR that resource is transmitted.
Preferably, said detection processing unit 12, when UL-GRANT successfully was handed down to said terminal, sense terminals was through the decode results of PUSCH BSR that resource is transmitted.
Preferably, said detection processing unit 12 specifically is used for:
When UL-GRANT successfully is handed down to said terminal, make the corresponding BSR transmission counter in this terminal add 1; Whether judge the terminal correctly through PUSCH resource transmission BSR, if, then make the corresponding BSR transmission counter O reset in this terminal, and end operation; Otherwise, do not reach at the corresponding BSR transmission counter in this terminal under the situation of preset count threshold, continue as terminal distribution UL-GRANT and be adjusted into the PUSCH resource of this terminal distribution.
Preferably, said detection processing unit 12 is judged when whether the terminal correctly passes through PUSCH resource transmission BSR, specifically is used for:
Judge that through the automatic repeat requests HARQ maximum retransmission of up mixing whether the terminal is all correctly through PUSCH resource transmission BSR, if explain that then the terminal is correctly through PUSCH resource transmission BSR; Otherwise, explain that the terminal is incorrect in PUSCH resource transmission BSR.
Preferably, said detection processing unit 12 when confirm the PUSCH resource location that continues to issue UL-GRANT and be adjusted into terminal distribution according to testing result after, also is used for:
Again sense terminals is through the decode results of the PUSCH BSR that resource is transmitted that redistributes.
In sum, the embodiment of the invention is taked adaptive mode to increase the transmission opportunity of BSR, and is adjusted the physical resource that transmits BSR through the transmission result of BSR on PUSCH that monitoring SR triggers, thereby improves the transmission success rate of BSR.Increase the transmission robustness of the up BSR in terminal, thereby can under the relatively poor situation of uplink signal-channel quality, dwindle up TCP traffic transmission time delay, eliminated the professional transmission of the descending TCP unsteadiness of bringing because of up feedback is untimely.And the technical scheme that the embodiment of the invention provides is easy to realize, is convenient to product up-gradation.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the transfer control method of a buffer status report BSR is characterized in that, this method comprises:
When receiving the dispatch request SR that send at the terminal, be terminal distribution Physical Uplink Shared Channel PUSCH resource, and issue UL-GRANT to the terminal, wherein carry PUSCH resource indication into this terminal distribution;
The decode results of sense terminals through PUSCH BSR that resource is transmitted judges whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result.
2. method according to claim 1 is characterized in that, when UL-GRANT successfully was handed down to said terminal, sense terminals was through the decode results of PUSCH BSR that resource is transmitted.
3. method according to claim 2 is characterized in that, when UL-GRANT successfully is handed down to said terminal, makes the corresponding BSR transmission counter in this terminal add 1;
The decode results of said sense terminals through PUSCH BSR that resource is transmitted judges whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result, comprising:
Whether judge the terminal correctly through PUSCH resource transmission BSR, if, then make the corresponding BSR transmission counter O reset in this terminal, and end operation; Otherwise, do not reach at the corresponding BSR transmission counter in this terminal under the situation of preset count threshold, continue as terminal distribution UL-GRANT and be adjusted into the PUSCH resource of this terminal distribution.
4. method according to claim 3 is characterized in that, saidly judges that the terminal whether correctly through PUSCH resource transmission BSR, comprising:
Judge that through the automatic repeat requests HARQ maximum retransmission of up mixing whether the terminal is all correctly through PUSCH resource transmission BSR, if explain that then the terminal is correctly through PUSCH resource transmission BSR; Otherwise, explain that the terminal is incorrect in PUSCH resource transmission BSR.
5. according to the described method of the arbitrary claim of claim 1-4, it is characterized in that, when confirm the PUSCH resource location that continues to issue UL-GRANT and be adjusted into terminal distribution according to testing result after, also comprise:
Again sense terminals is through the decode results of the PUSCH BSR that resource is transmitted that redistributes.
6. the transmission control unit of a buffer status report BSR is characterized in that, this device comprises:
The initial treatment unit is used for when receiving the dispatch request SR that send at the terminal, being terminal distribution Physical Uplink Shared Channel PUSCH resource, and issues UL-GRANT to the terminal, wherein carries the PUSCH resource indication into this terminal distribution;
Detect processing unit, be used for the decode results of sense terminals, judge whether to continue the PUSCH resource location that issues UL-GRANT and be adjusted into terminal distribution according to testing result through PUSCH BSR that resource is transmitted.
7. device according to claim 6 is characterized in that, said detection processing unit, and when UL-GRANT successfully was handed down to said terminal, sense terminals was through the decode results of PUSCH BSR that resource is transmitted.
8. device according to claim 7 is characterized in that, said detection processing unit specifically is used for:
When UL-GRANT successfully is handed down to said terminal, make the corresponding BSR transmission counter in this terminal add 1; Whether judge the terminal correctly through PUSCH resource transmission BSR, if, then make the corresponding BSR transmission counter O reset in this terminal, and end operation; Otherwise, do not reach at the corresponding BSR transmission counter in this terminal under the situation of preset count threshold, continue as terminal distribution UL-GRANT and be adjusted into the PUSCH resource of this terminal distribution.
9. device according to claim 8 is characterized in that, said detection processing unit is judged when whether the terminal correctly passes through PUSCH resource transmission BSR, specifically is used for:
Judge that through the automatic repeat requests HARQ maximum retransmission of up mixing whether the terminal is all correctly through PUSCH resource transmission BSR, if explain that then the terminal is correctly through PUSCH resource transmission BSR; Otherwise, explain that the terminal is incorrect in PUSCH resource transmission BSR.
10. according to the described device of the arbitrary claim of claim 6-9, it is characterized in that said detection processing unit when confirm the PUSCH resource location that continues to issue UL-GRANT and be adjusted into terminal distribution according to testing result after, also is used for:
Again sense terminals is through the decode results of the PUSCH BSR that resource is transmitted that redistributes.
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| CN201210015103.6A CN102595603B (en) | 2012-01-17 | 2012-01-17 | Transmission control method and device of buffer state report (BSR) |
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| CN201210015103.6A CN102595603B (en) | 2012-01-17 | 2012-01-17 | Transmission control method and device of buffer state report (BSR) |
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| CN103814615A (en) * | 2013-09-11 | 2014-05-21 | 华为技术有限公司 | Data transmission method and user equipment |
| CN107347197A (en) * | 2016-05-06 | 2017-11-14 | 普天信息技术有限公司 | A kind of business transmitting method and device |
| WO2020087369A1 (en) * | 2018-10-31 | 2020-05-07 | Oppo广东移动通信有限公司 | Counting method, terminal device, and apparatus |
| CN111757512A (en) * | 2019-03-28 | 2020-10-09 | 成都鼎桥通信技术有限公司 | Uplink scheduling method and device |
| RU2741327C1 (en) * | 2017-09-29 | 2021-01-25 | Хуавей Текнолоджиз Ко., Лтд. | Terminal device and method of processing scheduling request |
| CN115918219A (en) * | 2020-08-24 | 2023-04-04 | Oppo广东移动通信有限公司 | Information transmission method, device, equipment and storage medium |
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| CN111757512B (en) * | 2019-03-28 | 2022-09-13 | 成都鼎桥通信技术有限公司 | Uplink scheduling method and device |
| CN115918219A (en) * | 2020-08-24 | 2023-04-04 | Oppo广东移动通信有限公司 | Information transmission method, device, equipment and storage medium |
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| Publication number | Publication date |
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| CN102595603B (en) | 2014-07-30 |
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