CN102833857A - Method, system and device for transmitting and scheduling uplink data - Google Patents
Method, system and device for transmitting and scheduling uplink data Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for transmitting and scheduling uplink data. The method comprises the following steps of: determining uplink resource size distributed to UE (user equipment) for reporting a state report of a buffer area and transmitting uplink business data when a scheduling request transmitted by the UE is received; informing the UE the determined uplink resource size to report a BSR (business for social responsibility) and transmit the uplink data by the UE when scheduling of the UE is carried out in the scheduling is determined, or else, determining whether the scheduling of the UE is carried out when waiting to enter into the next scheduling. The transmission delay that the UE transmits the uplink data is reduced.
Description
Technical field
The present invention relates to communication technical field, refer to that especially a kind of upstream data sends dispatching method, system and device.
Background technology
Current Long Term Evolution (Long Term Evolution, LTE) in the system, user terminal (User Equipment, when UE) needing to send upstream data, handle according to the mode of Fig. 1:
Step (1): when data arrive, to the base station send dispatch request (Scheduling Request, SR).
Step (2): handle according to the SR that receives the base station.
The base station detects after the SR, distributes less bandwidth to give UE.This process is the uplink authorization processing procedure of base station, licenses to the certain bandwidth of UE, be used for UE report Buffer Status Report (Buffer Status Report, BSR).
Step (3): be used for the uplink authorization information transmission that BSR reports.
Send downlink signaling, will be used for the uplink authorization that BSR reports and send to UE.
Step (4): UE reports BSR.
Step (5): handle according to the BSR that receives the base station.
After the base station receives BSR, distribute certain bandwidth to give UE, be used to send data.This process is the uplink authorization processing procedure that the data of base station are sent.
Step (6): the uplink authorization information transmission that is used to send data.
Send downlink signaling, the uplink authorization that will be used to send data sends to UE.
Step (7): UE sends upstream data according to the bandwidth of distributing.
The base station sends to receiving terminal with upstream data.
Because the above-mentioned up sequential relationship that LTE system uplink data are sent, the above time of 12ms could send data the process UE that upstream data sends from eating dishes without rice or wine at least.The time prolongation that causes upstream data to send can not be satisfied the requirement of quick transmit ascending data.
Summary of the invention
The embodiment of the invention provides a kind of upstream data to send dispatching method, system and device, in order to solve the long problem of UE upstream data forward delay interval in the prior art.
Beneficial effect of the present invention is following:
The upstream data that the embodiment of the invention provides sends dispatching method, system and device, when receiving the dispatch request of user terminal UE transmission, confirms to distribute to the ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE; When the scheduling confirming when epicycle is dispatched to carry out to said UE,,, otherwise determine whether to carry out scheduling when waiting for the next round scheduling again to UE so that UE reports BSR and sends upstream data with the ascending resource size notice UE that determines.This method responds based on the dispatch request of type of service to UE; And branch is used in the ascending resource size that reports Buffer Status Report and transmission uplink business data simultaneously; Notice is given UE; Avoid the time of BSR negotiation, reduced the scheduling time delay of upstream data, promoted the experience effect the when user uses.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the realization flow figure that UE sends upstream data in the prior art;
Fig. 2 is the signaling process figure that upstream data sends dispatching method in the embodiment of the invention;
Fig. 3 is the flow chart that upstream data sends dispatching method in the embodiment of the invention;
Fig. 4 is the structural representation that upstream data sends dispatching patcher in the embodiment of the invention;
Fig. 5 is the structural representation that upstream data sends dispatching device in the embodiment of the invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides a kind of upstream data to send dispatching method, and the realization signaling process of this method is as shown in Figure 2, comprises the steps:
Step S11:UE sends dispatch request (SR) and gives the base station.
When UE has upstream data to send, send SR to the base station, the request uplink scheduling.
Step S12: when the base station receives the dispatch request of user terminal UE transmission, confirm to distribute to the ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE.
The professional affiliated type of service of UE request scheduling is confirmed according to the dispatch request that receives in the base station.
Scheduling time length when being scheduled according to the historical speed of the type of service of UE request scheduling and UE last time, that confirms to distribute to UE is used to report Buffer Status Report and the ascending resource size of sending uplink business data.
Step S13: when the scheduling confirming when epicycle is dispatched to carry out to UE, with the ascending resource size notice UE that determines.
(QoS Class Identifier QCI), determines whether that execution is to the scheduling of said UE when epicycle dispatch according to the quality of service class sign of the business of UE request scheduling.
When the scheduling confirming when epicycle is dispatched to carry out to UE,,, otherwise wait for that next round determines whether to carry out the scheduling to UE again when dispatching so that UE reports Buffer Status Report (BSR) and sends upstream data with the ascending resource size notice UE that determines.
Step S14:UE reports the concurrent line data of serving of BSR.
The said method base station directly is used in the ascending resource that upstream data sends and BSR reports for UE divides; After the base station detects SR; Not only satisfy the demand (reporting only needs 2 bytes of BSR) that reports BSR for the uplink authorization of UE; According to type of service, give the certain bandwidth of UE, make the upstream data of UE very fast transmission to come up.Avoid the negotiations process of step (3) shown in Figure 1 in the prior art, (4), (5), reduced the forward delay interval of upstream data.
Above-mentioned upstream data sends dispatching method, and the concrete handling process of base station is as shown in Figure 3, comprises the steps:
Step S101: the base station receives the dispatch request that user terminal UE sends.
When the base station receives the dispatch request of UE transmission, dispatch request is resolved, obtain the traffic type information of the business of request scheduling.
Step S102: the professional affiliated type of service of confirming the UE request scheduling.
Wherein, type of service comprises bit rate (Guaranteed Bit Rate, GBR) the professional and non-GBR business of guaranteeing.
The base station confirms that the business of UE request scheduling has and whether has GBR professional, if having, thinks that the type of service of request scheduling of this UE is that GBR is professional, otherwise thinks that the type of service of this UE request scheduling is non-GBR (Non-GBR) business.
If determine type of service is that GBR is professional, execution in step S103; If determine type of service is that non-GBR is professional, execution in step S105.
Step S103: confirm the scheduling time length and the professional historical speed of GBR when the UE last time is scheduled.
After determining the type of service of UE, just can give the size of the ascending resource of UE according to corresponding business type dispensed, specifically can be the size of distributing to the uplink data block of UE.
When the business of UE request scheduling is that GBR is professional, the scheduling time length when being scheduled with the UE last time according to the professional historical speed of GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data.
(unit: method bps) can have multiple, is example with a kind of account form of filtering, the historical speed Rate that GBR is professional to calculate the professional historical speed of GBR
HisCalculate through formula:
Rate
His＝Rate
His-Last*0.95+TBSize
Last*0.05；
Wherein: TBSize
LastThe upstream data block size that distributes when being scheduled for the UE last time;
Rate
His-LastThe professional historical speed of the GBR that confirms of distributing when being scheduled for the UE last time, the time T (unit: s) that promptly the last this UE is scheduled.
Step S104: calculate the upstream data block size of distributing to UE.
It is multiple that dispensed also can have for the method for the upstream data block size of UE, for example: the upstream data block size TBSize of GBR traffic assignments (unit: bit) can calculate through formula:
TBSize＝Rate
His*T
Wherein: Rate
HisBe the professional historical speed of GBR;
Scheduling time length when T was scheduled for the UE last time.
Step S105: confirm the scheduling time length and the professional historical speed of non-GBR when the UE last time is scheduled.
Professional right and wrong GBR business when the UE request scheduling; Scheduling time length when being scheduled with the UE last time according to the professional historical speed of non-GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data.
(unit: method bps) can have multiple, is example with a kind of account form of filtering, the historical speed Rate that non-GBR is professional to calculate the professional historical speed of non-GBR
HisCalculate through formula:
Rate
His＝Rate
His-Last*0.95+TBSize
Last*0.05；
Wherein: TBSize
LastThe upstream data block size that distributes when being scheduled for the UE last time;
Rate
His-LastThe professional historical speed of confirming of non-GBR of distributing when being scheduled for the UE last time, the time T (unit: s) that promptly the last this UE is scheduled.
Step S106: calculate the upstream data block size of distributing to UE.
It is multiple that dispensed also can have for the method for the upstream data block size of UE, for example: the upstream data block size TBSize of non-GBR traffic assignments (unit: bit) calculate through formula:
TBSize＝Rate
His*T
Wherein: Rate
HisBe the professional historical speed of non-GBR;
Scheduling time length when T was scheduled for the UE last time.
Step S107: the quality of service class sign QCI according to the business of UE request scheduling determines whether that execution is to the scheduling of this UE when epicycle dispatch.
Carry out QCI when judging whether dispatch, need to determine whether epicycle to dispatch this UE the scheduling of UE into the needs epicycle according to the quality of service class sign QCI of the business of UE.
If, execution in step S109, otherwise, execution in step S108.
Judge whether that according to the QCI of the business of UE request scheduling needs dispatch this UE immediately in this step, for example: when comprise in the current business of UE request scheduling QCI be 4,6,8,9 professional the time, thinking does not need to dispatch immediately, otherwise thinks and need dispatch immediately.
Step S108: the ascending resource size that will distribute to UE is carried out buffer memory, determines whether to carry out the scheduling to UE when waiting for the next round scheduling again.
Being used as the ascending resource of distributing to UE the buffer size of UE and preserving, is the UE scheduling of non-zero according to the normal buffer state.
Step S109: with the ascending resource size notice UE that determines.
With the ascending resource size notice UE that determines, so that UE reports BSR and sends upstream data.Promptly, be used as BSR to the data block size of the needs scheduling of distributing to UE and be kept in the UE instance according to the TBSize size of calculating.
When the scheduling confirm to need carried out UE, this dispatches this UE immediately.If (Transmission Time Interval TTI) dispatches this UE success to this Transmission Time Interval, sends the uplink scheduling result through DCI0 and sends to UE.
Preferably, according to the resource size of the TBSize size of calculating, with the limit priority UE scheduling of this UE as the epicycle scheduling as these scheduling needs.When with the subframe being the unit scheduling, dispatch as this subframe limit priority UE.
Step S110: the BSR that reception UE reports and the upstream data of transmission.
Behind the ascending resource size notice UE that determines, also comprise:, determine whether to carry out scheduling when waiting for the next round scheduling again UE if epicycle scheduling failure then will be distributed to the ascending resource size of UE and carry out buffer memory.
When with the subframe being the unit scheduling,, then postpone to sub-frame processing down, following sub-frame if this subframe can't be dispatched.If UE then is still limit priority in next subframe as limit priority UE scheduling.
Said method, receive the dispatch request of UE after, distribute certain bandwidth to be used to report Buffer Status Report and send uplink business data to UE, avoided reporting the mutual upstream data forward delay interval that brings of process because of BSR.
The upstream data that provides based on the embodiment of the invention sends dispatching method, and the embodiment of the invention also provides a kind of upstream data to send dispatching patcher, and this system configuration is as shown in Figure 4, comprises base station 1 and user terminal 2.Wherein:
The ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE when being used to receive the dispatch request of user terminal UE transmission, is confirmed to distribute in base station 1; When the scheduling confirming when epicycle is dispatched to carry out to UE,,, otherwise determine whether to carry out scheduling when waiting for the next round scheduling again to UE so that UE reports BSR and sends upstream data with the ascending resource size notice UE that determines.
The upstream data that provides based on the embodiment of the invention sends dispatching method and system; The embodiment of the invention also provides a kind of upstream data to send dispatching device; This device can be arranged in the base station 10, and the structure of this device is as shown in Figure 5, comprising: resource distribution module 10 and scheduling of resource module 11.
Resource distribution module 10 when being used to receive the dispatch request of user terminal UE transmission, confirms to distribute to the ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE.
Scheduling of resource module 11; Be used for when the scheduling confirming when epicycle is dispatched to carry out to said UE; With the big or small notice of the ascending resource of determining UE,, otherwise wait for that next round determines whether to carry out the scheduling to UE again when dispatching so that UE reports BSR and sends upstream data.
Preferably, above-mentioned resource distribution module 10 comprises: type is confirmed submodule 101 and resource allocation submodule 102.
Type is confirmed submodule 101, when being used to receive the dispatch request of user terminal UE transmission, confirms the professional affiliated type of service of UE request scheduling.
Resource allocation submodule 102 is used for the scheduling time length when being scheduled according to the historical speed of the type of service of UE request scheduling and UE last time, and that confirms to distribute to UE is used to report Buffer Status Report and the ascending resource size of sending uplink business data.
Preferably; Above-mentioned resource allocation submodule 101; Specifically be used for: professional if the business of UE request scheduling is GBR; Scheduling time length when being scheduled with the UE last time according to the professional historical speed of GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data; If the professional right and wrong GBR of UE request scheduling is professional; Scheduling time length when being scheduled with the UE last time according to the professional historical speed of non-GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data.
Preferably, above-mentioned scheduling of resource module 11 comprises: scheduled submodule 111 and scheduled for executing submodule 112.
Scheduled submodule 111 is used for the quality of service class sign QCI according to the business of UE request scheduling, determines whether when epicycle is dispatched, to carry out the scheduling to said UE.
Scheduled for executing submodule 112 is used for being judged as when being when the scheduled submodule, with the ascending resource size notice UE that determines, so that UE reports BSR and sends upstream data; Otherwise, the ascending resource size of distributing to UE is carried out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again to UE.
Preferably; Above-mentioned scheduled for executing submodule 112 also is used for: behind the ascending resource size notice UE that determines, if epicycle scheduling failure; Then will distribute to the ascending resource size of UE and carry out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again said UE.
The upstream data that the embodiment of the invention provides sends dispatching method, system and device, is applicable to the LTE system, responds based on the dispatch request of type of service to UE, to reduce the scheduling time delay of upstream data, promotes the experience effect that the user uses the LTE system.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of accompanying claims of the present invention.
Claims (14)
1. a upstream data sends dispatching method, it is characterized in that, comprising:
When receiving the dispatch request of user terminal UE transmission, confirm to distribute to the ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE;
When the scheduling confirming when epicycle is dispatched to carry out to said UE,,, otherwise determine whether to carry out scheduling when waiting for the next round scheduling again to UE so that UE reports BSR and sends upstream data with the ascending resource size notice UE that determines.
2. the method for claim 1 is characterized in that, the said ascending resource size that is used to report Buffer Status Report and transmission uplink business data of confirming to distribute to UE specifically comprises:
According to the dispatch request that receives, confirm the professional affiliated type of service of UE request scheduling;
Scheduling time length when being scheduled according to the historical speed of the type of service of UE request scheduling and UE last time, that confirms to distribute to UE is used to report Buffer Status Report and the ascending resource size of sending uplink business data.
3. method as claimed in claim 2 is characterized in that, said type of service comprises the professional and non-GBR business of bit rate GBR that guarantees;
Confirm that the big or small process of ascending resource of distributing to UE specifically comprises:
If it is professional that the business of UE request scheduling is GBR, the scheduling time length when being scheduled with the UE last time according to the professional historical speed of GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data;
If the professional right and wrong GBR of UE request scheduling is professional; Scheduling time length when being scheduled with the UE last time according to the professional historical speed of non-GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data.
4. method as claimed in claim 3 is characterized in that, said upstream data block size TBSize calculates through formula:
TBSize＝Rate
His*T；
Wherein: Rate
HisBe the professional historical speed of the professional or non-GBR of GBR;
Scheduling time length when T was scheduled for the UE last time.
5. method as claimed in claim 4 is characterized in that, the professional historical speed Rate of the professional or non-GBR of GBR
HisCalculate through formula:
Rate
His＝Rate
His-Last*0.95+TBSize
Last*0.05；
Wherein: TBSize
LastThe upstream data block size that distributes when being scheduled for the UE last time;
Rate
His-LastThe professional historical speed of the professional or non-GBR of the GBR that confirms that distributes when being scheduled for the UE last time.
6. like the arbitrary described method of claim 1-5, it is characterized in that, carry out process, specifically comprise the scheduling of said UE:
Quality of service class sign QCI according to the business of UE request scheduling determines whether that execution is to the scheduling of said UE when epicycle dispatch; If, with the ascending resource size notice UE that determines, so that UE reports BSR and sends upstream data; Otherwise, the ascending resource size of distributing to UE is carried out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again to UE.
7. method as claimed in claim 6 is characterized in that, and is said with behind the ascending resource size notice UE that determines, and also comprises:
If epicycle scheduling failure then will be distributed to the ascending resource size of UE and carry out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again to said UE.
8. a upstream data sends dispatching device, it is characterized in that, comprising:
Resource distribution module when being used to receive the dispatch request of user terminal UE transmission, confirms to distribute to the ascending resource size that is used to report Buffer Status Report and transmission uplink business data of UE;
The scheduling of resource module is used for when the scheduling confirming when epicycle is dispatched to carry out to said UE, with the ascending resource size notice UE that determines, so that UE reports BSR and sends upstream data, otherwise determines whether to carry out the scheduling to UE when waiting for the next round scheduling again.
9. device as claimed in claim 8 is characterized in that, said resource distribution module comprises:
Type is confirmed submodule, when being used to receive the dispatch request of user terminal UE transmission, confirms the professional affiliated type of service of UE request scheduling;
The resource allocation submodule is used for the scheduling time length when being scheduled according to the historical speed of the type of service of UE request scheduling and UE last time, and that confirms to distribute to UE is used to report Buffer Status Report and the ascending resource size of sending uplink business data.
10. device as claimed in claim 9 is characterized in that, said resource allocation submodule specifically is used for:
If it is professional that the business of UE request scheduling is GBR, the scheduling time length when being scheduled with the UE last time according to the professional historical speed of GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data;
If the professional right and wrong GBR of UE request scheduling is professional; Scheduling time length when being scheduled with the UE last time according to the professional historical speed of non-GBR calculates and distributes to the upstream data block size that UE is used to report Buffer Status Report and transmission uplink business data.
11. device as claimed in claim 8 is characterized in that, said scheduling of resource module comprises:
The scheduled submodule is used for the quality of service class sign QCI according to the business of UE request scheduling, determines whether when epicycle is dispatched, to carry out the scheduling to said UE;
The scheduled for executing submodule is used for being judged as when being when the scheduled submodule, with the ascending resource size notice UE that determines, so that UE reports BSR and sends upstream data; Otherwise, the ascending resource size of distributing to UE is carried out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again to UE.
12. device as claimed in claim 11 is characterized in that, said scheduled for executing submodule also is used for:
Said with behind the ascending resource size notice UE that determines, if epicycle scheduling failure then will be distributed to the ascending resource size of UE and carry out buffer memory, determine whether to carry out scheduling when waiting for the next round scheduling again to said UE.
13. a base station is characterized in that, comprising: send dispatching device like the arbitrary described upstream data of claim 8-12.
14. a upstream data sends dispatching patcher, it is characterized in that, comprises user terminal UE and base station as claimed in claim 13.
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