CN101557581A - Method for acquiring cache state report, device and equipment thereof - Google Patents
Method for acquiring cache state report, device and equipment thereof Download PDFInfo
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- CN101557581A CN101557581A CNA2009101386357A CN200910138635A CN101557581A CN 101557581 A CN101557581 A CN 101557581A CN A2009101386357 A CNA2009101386357 A CN A2009101386357A CN 200910138635 A CN200910138635 A CN 200910138635A CN 101557581 A CN101557581 A CN 101557581A
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Abstract
The embodiment of the invention discloses a method for acquiring cache state report, a device and equipment thereof, which relates to the technical field of communication and aims at improving the effectiveness of the uplink resource scheduling conducted by a base station; the method comprises the steps of: receiving a first cache state report from user equipment and acquiring the transmission information of the first cache state report; receiving a second cache state report from the user equipment and acquiring the transmission information of the second cache state report; utilizing the transmission information of the second cache state report to acquire the initial transmission information of the second cache state report when the second cache state report is a retransmitted cache state report; and acquiring a latest cache state report transmitted by the user equipment according to the transmission information of the first cache state report and the initial transmission information of the second cache state report, and taking the latest cache state report as the cache state report of the uplink resource scheduling. The embodiment of the invention is applied to the uplink resource scheduling technology of the base station.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, device and equipment that obtains buffer status report.
Background technology
LTE (Long Term Evolution, Long Term Evolution) is UMTS (Universal MobileTelecommunications System, a universal mobile telecommunications system) Long Term Evolution project.In the prior art, user equipment (UE) comes to report data volume in the medium formation to be sent of the buffer memory of UE side to the base station by BSR (Buffer State Report, buffer status report), so that ascending resource scheduling is carried out according to described BSR in the base station.Wherein, the mode that reports of BSR can be divided into two kinds: a kind of is to report short BSR, this buffer status that reports mode can only report a logic channel grouping; Another is to report long BSR, this buffer status that reports mode can report four logic channel groupings.
By the BSR that UE reports, the base station can obtain following at least information:
1), whether current UE have signaling to need to send, if having, then sends the BSR of logic channel grouping 0 to the base station;
2), whether current UE have VOIP (Voice over IP is by the IP network transfers voice information) business datum to need to send, if having, then sends the BSR of logic channel grouping 1 to the base station;
3), current UE other business datum amount to be sent.
As seen from the above, can obtain accurately and safeguard that the BSR that is reported by UE is one of key factor that influences the base station scheduling performance.In the prior art, the base station generally is that the way of the BSR that receives before adopting the BSR that the up-to-date UE that receives is reported to replace it is safeguarded the BSR that UE reports.That is to say that after receiving the BSR that UE reports, the base station is used the up-to-date BSR that receives and covered the BSR that had before received, carries out ascending resource scheduling according to up-to-date BSR then at every turn.
But, BSR is as a kind of special MAC CE (Control Element, controller) is encapsulated in MAC PDU (Protocol Data Unit, protocol Data Unit) reports in, and owing to reasons such as signal attenuations, described MAC PDU may bust this in transmission course, and this just causes the base station can not correctly solve this MAC PDU.For addressing this problem, adopt HARQ (Hybrid AutomaticRepeat-Request mixes automatic repeat requests) technology to solve the problem of MAC PDU bust this in the prior art, adopt 8 HARQ processes to realize usually.Make UE like this after sending data, do not need to wait for affirmation (ACK) feedback of base station, just can continue to adopt next HARQ process to send data with a HARQ process.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
In the BSR maintenance scheme in the prior art, because the BSR that UE sends may retransmit, therefore, the BSR that the UE always of the BSR that the base station newly receives sends recently, and the scheduling of ascending resource need could be carried out more accurately according to the BSR that UE sends recently in the base station.
Summary of the invention
The embodiment of the invention provides a kind of method, device, equipment that obtains buffer status report, can improve the validity that ascending resource scheduling is carried out in the base station.
The embodiment of the invention adopts following technical scheme:
A kind of method of obtaining buffer status report comprises:
Reception comes from first buffer status report of subscriber equipment, obtains the transmission information of described first buffer status report;
Reception comes from second buffer status report of subscriber equipment, obtains the transmission information of described second buffer status report;
When described second buffer status report during, utilize the transmission information of described second buffer status report to obtain the initial transmission information of described second buffer status report for the buffer status report that retransmits;
According to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, obtain the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
A kind of device that obtains buffer status report comprises:
Receiving element is used to receive first buffer status report and second buffer status report that come from subscriber equipment;
Acquiring unit is used to obtain the transmission information of first buffer status report that described receiving element receives and the transmission information of second buffer status report that described receiving element receives;
The initial transmission information acquiring unit is used for when described second buffer status report during for the buffer status report that retransmits, utilizes the transmission information of described second buffer status report to obtain the initial transmission information of described second buffer status report;
The buffer status report determining unit, be used for according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, obtain the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
A kind of base station comprises: comprise described arbitrary device as claim 6-9.
The method of obtaining buffer status report, device, equipment that the embodiment of the invention provides according to first buffer status report and second buffer status report by the subscriber equipment transmission that receive, obtain the transmission information of above-mentioned two buffer status reports respectively.Obtain the initial transmission information of described second buffer status report then according to the transmission information of described second buffer status report.At last, according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, the buffer status report that obtains the transmission recently of described subscriber equipment is as the buffer status report that carries out ascending resource scheduling.
This shows, in the technical scheme of the embodiment of the invention, be to carry out ascending resource scheduling, and the buffer status report that described subscriber equipment sends recently can react the current demand of subscriber equipment more accurately according to the buffer status report that subscriber equipment sends recently.Therefore, utilize the technical scheme of the embodiment of the invention, for the uplink scheduling resource of user equipment allocation more can meet the current demand of subscriber equipment, improved the validity that ascending resource scheduling is carried out in the base station.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the applied network system of method of obtaining buffer status report of the embodiment of the invention;
Fig. 2 obtains the schematic flow sheet of the method for buffer status report for the embodiment of the invention one;
Fig. 3 obtains the structural representation of the device of buffer status report for the embodiment of the invention two;
Fig. 4 obtains the structural representation of the equipment of buffer status report for the embodiment of the invention two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, the applied network system of the method for obtaining buffer status report of the embodiment of the invention comprises: subscriber equipment (UE) 11 and base station 12.Wherein, subscriber equipment 11 is used for sending buffer status report to base station 12.After base station 12 receives buffer status report, subscriber equipment 11 is carried out ascending resource scheduling according to buffer status report.
In actual applications, described base station can also be other other equipment with function of the above-mentioned equipment that obtains buffer status report.
Based on above-mentioned network system, the embodiment of the invention one provides a kind of method of obtaining buffer status report.As shown in Figure 2, this method comprises the steps:
Step 21, base station receive first buffer status report that is sent by subscriber equipment, obtain the transmission information of described first buffer status report.
Wherein, described first buffer status report is meant the current buffer status report that receives in base station.And for the LTE system, a radio frames has ten subframes.Every 1ms subframe numbers adds up once, and every 10ms radio frame number adds up once.
Exemplary, the transport packet of described first buffer status report is drawn together the initial transmission information of frame number, subframe numbers and described first buffer status report of described first buffer status report of transmission.At this, described initial transmission information is meant frame number and the subframe numbers that is obtained when sending for the first time described first buffer status report, the parameter that calculates in the following manner:
L
1＝F
1×a+S
1；
Wherein, described L
1The initial transmission information of representing described first buffer status report, F
1The frame number of expression transmission first buffer status report, S
1The subframe numbers of expression transmission first buffer status report, a is a constant, the multiple relation in the expression radio frames between frame and the subframe.Exemplary, but a value is 10.
Exemplary, the transport packet of second buffer status report is drawn together the frame number and the subframe numbers of described second buffer status report of transmission.
Exemplary, after buffer status report sent successfully, the base station obtained the frame number and the subframe numbers of the radio frames of this buffer status report of transmission.Therefore, the affiliated frame number of each buffer status report that is obtained in step 21 and step 23 and subframe numbers all are to refer to frame number and the subframe numbers of each buffer status report when successfully sending.
In the step 23, the base station can at first obtain the number of retransmissions of described second buffer status report so, to determine whether described second buffer status report is the buffer status report of re-transmission.
Owing to reasons such as transmission channel quality are relatively poor, some buffer status report may need to send and repeatedly could send success.For each buffer status report that sends by subscriber equipment, the number of times that the base station can obtain its re-transmission also promptly this buffer status report need repeat to send several times and could successfully be received by the base station, at this described number of times is designated as number of retransmissions.For example, when certain state cache report once sent successfully, there was not re-transmission in this buffer status report, and its number of retransmissions is recorded as 0; When certain buffer status report has sent when just sending successfully 3 times, its pairing number of retransmissions is 2.
When the number of retransmissions of described second buffer status report is 0, described base station can be according to mode of the prior art, described second buffer status report is covered first buffer status report, and utilize described second buffer status report to carry out ascending resource scheduling for subscriber equipment.Certainly, in this case, ascending resource scheduling also can be carried out according to the processing mode of the following embodiment of the invention in described base station.
When the number of retransmissions of described second buffer status report during, can obtain the initial transmission information of described second buffer status report according to the transmission information of the number of retransmissions and described second buffer status report of described second buffer status report more than or equal to 1 time.At this, described initial transmission information is meant frame number and the subframe numbers that is obtained when sending for the first time described second buffer status report, and the account form of the initial transmission information of described second buffer status report is:
L
2＝F
2×a+S
2-b×R；
Wherein, described L
2The initial transmission information of representing described second buffer status report, F
2The frame number of expression transmission second buffer status report, S
2The subframe numbers of expression transmission second buffer status report, R represents the number of retransmissions of described second buffer status report, a is a constant, the multiple relation in the expression radio frames between frame and the subframe, b is a constant, expression retransmits the time interval of buffer status report.Exemplary, but a value is 10, but the b value is 8.
In this step, described base station is with the value L of the initial transmission information of described first buffer status report
1Value L with the initial transmission information of described second buffer status report
2Compare, select L then
1Or L
2Bigger buffer status report carries out ascending resource scheduling.
By embodiment shown in Figure 2 as can be seen, the base station obtains the transmission information of above-mentioned two buffer status reports respectively according to first buffer status report and second buffer status report by the subscriber equipment transmission that receive.Obtain the initial transmission information of described second buffer status report then according to the transmission information of described second buffer status report.At last, according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, the buffer status report that obtains the transmission recently of described subscriber equipment is as the buffer status report that carries out ascending resource scheduling.
Therefore, in the technical scheme of the embodiment of the invention, be to carry out ascending resource scheduling, and the buffer status report that described subscriber equipment sends recently can react the current demand of subscriber equipment more accurately according to the buffer status report that subscriber equipment sends recently.Therefore, utilize the technical scheme of the embodiment of the invention, for the uplink scheduling resource of user equipment allocation more can meet the current demand of subscriber equipment, improved the validity that ascending resource scheduling is carried out in the base station.
As shown in Figure 3, the embodiment of the invention two also provides a kind of device that obtains buffer status report, comprising: receiving element 31, acquiring unit 32, initial transmission information acquiring unit 33 and buffer status report determining unit 34.
Wherein, receiving element 31 is used for receiving respectively first buffer status report and second buffer status report that come from subscriber equipment; Acquiring unit 32 is used to obtain the transmission information of described first buffer status report and the transmission information of described second buffer status report; Initial transmission information acquiring unit 33 is used for when described second buffer status report during for the buffer status report that retransmits, utilizes the transmission information of described second buffer status report to obtain the initial transmission information of described second buffer status report; Buffer status report determining unit 34, be used for according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, obtain the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
Wherein, the transport packet of described first buffer status report is drawn together the initial transmission information of frame number, subframe numbers and described first buffer status report of described first buffer status report of transmission.The transport packet of described second buffer status report is drawn together the frame number and the subframe numbers of described second buffer status report of transmission.
Wherein, as shown in Figure 4, described initial transmission information acquiring unit 33 can comprise: number of retransmissions acquisition module 331 is used for obtaining the number of retransmissions of described second buffer status report when described second buffer status report is the buffer status report that retransmits; Initial transmission information acquisition module 332 is used for the transmission information according to described number of retransmissions and described second buffer status report, obtains the initial transmission information of described second buffer status report.
Again as shown in Figure 4, described buffer status report determining unit 34 comprises: comparison module 341 is used for the value of the initial transmission information of the value of the initial transmission information of described first buffer status report and described second buffer status report is compared; Buffer status report determination module 342 is used for according to comparative result, obtains the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
By embodiment two provided technical scheme as can be seen, the base station obtains the transmission information of above-mentioned two buffer status reports respectively according to first buffer status report and second buffer status report that are sent by subscriber equipment that receive.Obtain the initial transmission information of described second buffer status report then according to the transmission information of described second buffer status report.At last, according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, the buffer status report that obtains the transmission recently of described subscriber equipment is as the buffer status report that carries out ascending resource scheduling.
Therefore, in the technical scheme of the embodiment of the invention, the base station be according to subscriber equipment send recently buffer status report carry out ascending resource scheduling, and the buffer status report that described subscriber equipment sends recently can react the current demand of subscriber equipment more accurately.Therefore, utilize the technical scheme of the embodiment of the invention, the base station is the current demand that the uplink scheduling resource of user equipment allocation more can meet subscriber equipment, has improved the validity that ascending resource scheduling is carried out in the base station.
The embodiment of the invention three also provides a kind of base station, comprises the described device that obtains buffer status report of Fig. 3 or Fig. 4.
In sum, in the technical scheme of the embodiment of the invention, the base station is to carry out ascending resource scheduling according to the buffer status report that subscriber equipment sends recently, and the buffer status report that described subscriber equipment sends recently can react the current demand of subscriber equipment more accurately.Therefore, utilize the technical scheme of the embodiment of the invention, the base station is the current demand that the uplink scheduling resource of user equipment allocation more can meet subscriber equipment, has improved the validity that ascending resource scheduling is carried out in the base station.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (10)
1, a kind of method of obtaining buffer status report is characterized in that, comprising:
Reception comes from first buffer status report of subscriber equipment, obtains the transmission information of described first buffer status report;
Reception comes from second buffer status report of described subscriber equipment, obtains the transmission information of described second buffer status report;
When described second buffer status report during, utilize the transmission information of described second buffer status report to obtain the initial transmission information of described second buffer status report for the buffer status report that retransmits;
According to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, obtain the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
2, method according to claim 1 is characterized in that, the transport packet of described first buffer status report is drawn together frame number, subframe numbers and the initial transmission information of described first buffer status report of transmission; The transport packet of described second buffer status report is drawn together the frame number and the subframe numbers of described second buffer status report of transmission.
3, method according to claim 2 is characterized in that, the account form of the initial transmission information of described first buffer status report is:
L
1＝F
1×a+S
1；
Wherein, described L
1The initial transmission information of representing described first buffer status report, F
1The frame number of expression transmission first buffer status report, S
1The subframe numbers of expression transmission first buffer status report, a is a constant, the multiple relation in the expression radio frames between frame and the subframe.
4, method according to claim 2, it is characterized in that, when described second buffer status report during for the buffer status report that retransmits, the initial transmission information of utilizing the transmission information of described second buffer status report to obtain described second buffer status report comprises:
Obtain the number of retransmissions of described second buffer status report;
According to the transmission information of described number of retransmissions and described second buffer status report, obtain the initial transmission information of described second buffer status report; The account form of the initial transmission information of described second buffer status report is:
L
2＝F
2×a+S
2-b×R；
Wherein, described L
2The initial transmission information of representing described second buffer status report, F
2The frame number of expression transmission second buffer status report, S
2The subframe numbers of expression transmission second buffer status report, R represents the number of retransmissions of described second buffer status report, a is a constant, the multiple relation in the expression radio frames between frame and the subframe, b is a constant, expression retransmits the time interval of buffer status report.
5, method according to claim 4 is characterized in that, describedly obtains buffer status report that described subscriber equipment sends recently and is specially as the buffer status report of ascending resource scheduling:
According to the value of the initial transmission information of the value of the initial transmission information of described first buffer status report and described second buffer status report, obtain the buffer status report of the buffer status report of value as ascending resource scheduling with big initial transmission information.
6, a kind of device that obtains buffer status report is characterized in that, comprising:
Receiving element is used for receiving respectively first buffer status report and second buffer status report that come from subscriber equipment;
Acquiring unit is used to obtain the transmission information of first buffer status report that described receiving element receives and the transmission information of described second buffer status report;
The initial transmission information acquiring unit is used for when described second buffer status report during for the buffer status report that retransmits, utilizes the transmission information of described second buffer status report to obtain the initial transmission information of described second buffer status report;
The buffer status report determining unit, be used for according to the transmission information of described first buffer status report and the initial transmission information of described second buffer status report, obtain the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.。
7, device according to claim 6 is characterized in that, the transport packet of described first buffer status report is drawn together the affiliated frame number of described first buffer status report, subframe numbers and initial transmission information; The transport packet of described second buffer status report is drawn together affiliated frame number of described second buffer status report and subframe numbers.
8, device according to claim 7 is characterized in that, described initial transmission information acquiring unit comprises:
The number of retransmissions acquisition module is used for obtaining the number of retransmissions of described second buffer status report when described second buffer status report is the buffer status report that retransmits;
The initial transmission information acquisition module is used for the transmission information according to described number of retransmissions and described second buffer status report, obtains the initial transmission information of described second buffer status report.
9, device according to claim 8 is characterized in that, described resource allocation unit comprises:
Comparison module is used for the value of the initial transmission information of the value of the initial transmission information of described first buffer status report and described second buffer status report is compared;
The buffer status report determination module is used for the comparative result according to described comparison module, obtains the buffer status report of the buffer status report of described subscriber equipment transmission recently as ascending resource scheduling.
10, a kind of base station is characterized in that, comprises described arbitrary device as claim 6-9.
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| CNA2009101386357A CN101557581A (en) | 2009-05-12 | 2009-05-12 | Method for acquiring cache state report, device and equipment thereof |
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| CNA2009101386357A CN101557581A (en) | 2009-05-12 | 2009-05-12 | Method for acquiring cache state report, device and equipment thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072447A1 (en) * | 2009-12-17 | 2011-06-23 | Nokia Siemens Networks Oy | Reporting buffering information |
| CN102264132A (en) * | 2010-05-26 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for distributing uplink shared channel resources |
| CN102740281A (en) * | 2012-06-20 | 2012-10-17 | 华为技术有限公司 | Data transmission method, communication equipment and communication system |
| CN102802263A (en) * | 2011-05-25 | 2012-11-28 | 中兴通讯股份有限公司 | MAC (media access control) layer uplink dynamic scheduling method and device |
| CN102884851A (en) * | 2011-05-09 | 2013-01-16 | 华为技术有限公司 | Service scheduling method and base station |
| WO2014040301A1 (en) * | 2012-09-17 | 2014-03-20 | 华为技术有限公司 | Scheduling method, base station, user equipment and system |
| WO2024060208A1 (en) * | 2022-09-23 | 2024-03-28 | Huawei Technologies Co., Ltd. | Methods, system, and apparatus for retransmission in large propagation delay wireless communications |
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2009
- 2009-05-12 CN CNA2009101386357A patent/CN101557581A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8767614B2 (en) | 2009-12-17 | 2014-07-01 | Nokia Siemens Networks Oy | Reporting buffering information |
| WO2011072447A1 (en) * | 2009-12-17 | 2011-06-23 | Nokia Siemens Networks Oy | Reporting buffering information |
| CN102264132A (en) * | 2010-05-26 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for distributing uplink shared channel resources |
| CN102884851B (en) * | 2011-05-09 | 2016-01-27 | 华为技术有限公司 | Business scheduling method and base station |
| CN102884851A (en) * | 2011-05-09 | 2013-01-16 | 华为技术有限公司 | Service scheduling method and base station |
| CN102802263A (en) * | 2011-05-25 | 2012-11-28 | 中兴通讯股份有限公司 | MAC (media access control) layer uplink dynamic scheduling method and device |
| CN102740281B (en) * | 2012-06-20 | 2015-12-16 | 华为技术有限公司 | Data transmission method for uplink, communication equipment and communication system |
| CN102740281A (en) * | 2012-06-20 | 2012-10-17 | 华为技术有限公司 | Data transmission method, communication equipment and communication system |
| CN103828411A (en) * | 2012-09-17 | 2014-05-28 | 华为技术有限公司 | Scheduling method, base station, user equipment and system |
| WO2014040301A1 (en) * | 2012-09-17 | 2014-03-20 | 华为技术有限公司 | Scheduling method, base station, user equipment and system |
| US9801200B2 (en) | 2012-09-17 | 2017-10-24 | Huawei Technologies Co., Ltd. | Scheduling method, base station, user equipment, and system |
| CN103828411B (en) * | 2012-09-17 | 2018-06-15 | 华为技术有限公司 | Dispatching method, base station, user equipment and system |
| WO2024060208A1 (en) * | 2022-09-23 | 2024-03-28 | Huawei Technologies Co., Ltd. | Methods, system, and apparatus for retransmission in large propagation delay wireless communications |
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