CN104581970A - Adaptive-scheduling method and equipment - Google Patents
Adaptive-scheduling method and equipment Download PDFInfo
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- CN104581970A CN104581970A CN201410742716.9A CN201410742716A CN104581970A CN 104581970 A CN104581970 A CN 104581970A CN 201410742716 A CN201410742716 A CN 201410742716A CN 104581970 A CN104581970 A CN 104581970A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an adaptive-scheduling method and equipment. The method comprises the following steps: firstly, a base station determines a target scheduling manner according to a current scheduling manner of a to-be-scheduled terminal UE, further determines scheduling information, and finally determines whether the UE is required to be changed into the target scheduling manner or not, thereby realizing that the scheduling is performed by adopting a reasonable method according to PDCCH resource overhead and current channel quality of the UE, improving the user capacity of the base station, reducing the time delay of a voice data packet, and improving the quality of connection.
Description
Technical field
The embodiment of the present application relates to communication technical field, particularly a kind of self-adapting dispatching method.The embodiment of the present application also relates to a kind of adaptive scheduling equipment simultaneously.
Background technology
VoLTE is the end-to-end speech solution of framework on LTE (Long Term Evolution, Long Term Evolution) network under all-IP (Internet Protocol, procotol) condition.VoIP (Voice overInternet Protocol, the networking telephone) VoP has and periodically arrives, the relatively-stationary feature of bag size, both common dynamic dispatching can be adopted, also semi-continuous scheduling can be adopted, semi-continuous scheduling refers to and adopts semi-continuous scheduling to VOIP active period initial transmission voice packet, to SID (system identification) bag and the retransmission packet employing dynamic dispatching of quiet period.The output rule of VoP as shown in Figure 1, in the transient state stage, does not have voice packet to need scheduling, now can carry out the dynamic dispatching of other business; In the talk spurt state stage, user converses, and can produce a packet of samples by every 20ms, because user speech message produces measurable, so can semi-persistent scheduling be used, avoid all carrying out dynamic dispatching at every turn, thus probably can obtain the voice transfer capability improving of about 20%; In the Silent period stage, theory only has 160ms background sound symbol once, does not have speech data to dispatch.
According to 3GPP (The 3rd Generation Partnership Project, third generation partner program) agreement regulation, the advantage of dynamic dispatching is up-downgoing MCS (Modulation and Coding Scheme, modulation and coding strategy) rate range is 0 ~ 28, as shown in Table 7.1.7.1-1 and Table 8.6.1-1 in 36.213, inferior position needs each scheduling all will issue DCI (Downlink Control Information, Downlink Control Information), PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) resource overhead is large.The MCS rate range of semi-continuous scheduling is 0 ~ 15, and as shown in 36.213Table 9.2-1, but issue DCI when it is advantageous that and only in each SPS activation or need discharge, PDCCH resource expense is little.As shown in Table 1, the contrast of SPS scheduling with dynamic dispatching is given.When channel condition is fabulous, when same scheduling 15 prb, the MCS grade of dynamic dispatching is 28, and the tbsize of scheduling is 11064.And the MCS grade of SPS scheduling is 15, by tabling look-up TBSIZE is 4264, the Resource Block of dynamic dispatching is almost 2.5 times of SPS scheduling.
| Scheduling type | Dynamic dispatching | Semi-continuous scheduling |
| Pdcch resource overhead | Greatly | Little |
| MCS rate range | 0～28 | 0～15 |
The contrast of table 1, SPS scheduling and dynamic dispatching
As shown in Table 1, the implementation of prior art uses dynamic dispatching when speech business starts, if current SPS switch is for opening, and UE supports SPS scheduling, then configuration UE carries out SPS scheduling, no longer changes afterwards; If SPS switch is cut out or UE do not support that SPS dispatches, then use dynamic dispatching.
Inventor is realizing finding in process of the present invention, existing scheme implementation is single, very flexible, but does not consider base station PDCCH resource actual overhead and the current channel quality of UE, reasonable distribution can be made to channel resource, reduce the population size of base station.
Summary of the invention
The present invention proposes a kind of self-adapting dispatching method, in order to solve the single and problem not easily adjusted of terminal UE scheduling mode in prior art, the method comprises:
Base station is according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE;
Described base station is according to described target dispatch mode determination schedule information, and described schedule information at least comprises the MCS class information of described UE and the PDCCH resource accounting information of described base station;
Based on described schedule information, described base station determines that described UE is the need of changing to described target dispatch mode;
If so, described UE is changed to described target dispatch mode by described base station;
If not, described base station keeps the current scheduling mode of described UE.
Correspondingly, the invention allows for a kind of base station, comprising:
Determination module, treats the current scheduling mode determination target dispatch mode of dispatch terminal UE for basis;
Acquisition module, for according to described target dispatch mode determination schedule information, described schedule information at least comprises the MCS class information of described UE and the PDCCH resource accounting information of described base station;
Judge module, for determining that based on described schedule information described UE is the need of changing to described target dispatch mode;
Processing module, for changing to described target dispatch mode when the judged result of described judge module is for being by described UE; And the current scheduling mode of described UE is kept when the judged result of described judge module is no.
As can be seen here, by applying technical scheme of the present invention, base station is first according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE, and determine schedule information further, finally determining that UE is the need of changing to target dispatch mode based on schedule information, achieving and adopting rational method to dispatch according to PDCCH resource expense and the current channel quality of UE, improve the user capacity of base station, reduce the time delay of VoP, improve speech quality.
Accompanying drawing explanation
Fig. 1 is VOIP business model schematic diagram in prior art;
Fig. 2 is the schematic flow sheet of a kind of self-adapting dispatching method that the present invention proposes;
Fig. 3 is by the adaptive schematic flow sheet that should be SPS and dispatch of dynamic dispatching in the specific embodiment of the invention;
Fig. 4 dispatches the adaptive schematic flow sheet that should be dynamic dispatching by SPS in the specific embodiment of the invention;
Fig. 5 is the structural representation of a kind of base station that the present invention proposes.
Embodiment
For solving the problem proposed in background technology, the present invention is based on TD-LTE mobile communication system, the adaptive algorithm of a kind of dynamic dispatching and semi-continuous scheduling is proposed for the voice service scheduling in VoLTE voice solution, this algorithm synthesis considers the quality of dynamic dispatching and semi-continuous scheduling, by judging PDCCH (the Physical Downlink Control Channel of community, Physical Downlink Control Channel) resource occupation amount and current MCS (the modulation and coding scheme of UE, modulating-coding grade) grade achieves the self adaptation of dynamic dispatching and semi-continuous scheduling, be intended to the resource overhead reducing control channel, improve system user capacity.
As shown in Figure 2, be the schematic flow sheet of a kind of self-adapting dispatching method that the present invention proposes, comprise the following steps:
S201, base station is according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE.
S202, described base station is according to described target dispatch mode determination schedule information, and described schedule information at least comprises the MCS class information of described UE and the PDCCH resource accounting information of described base station.
S203, based on described schedule information, described base station determines that described UE is the need of changing to described target dispatch mode, if so, goes to S204, if not, goes to S205.
Based on the SPS scheduling existed at present and these two kinds of scheduling modes of dynamic dispatching, the present invention is directed to following two kinds of situations and propose different processing procedures respectively, specific as follows:
(1) when described current scheduling mode is SPS scheduling
In this case, target dispatch mode is dynamic dispatching, according to described MCS class information and described PDCCH resource accounting information, first base station judges whether the MCS grade of described UE is greater than the first default thresholding, and whether the PDCCH resource accounting of described base station is less than the second default thresholding; Then determine to need the scheduling mode to current to change if judged result is.
(2) when described current scheduling mode is dynamic dispatching
In this case, described target dispatch mode is SPS scheduling, and described schedule information also comprises: SPS switching-state information, indicates described UE whether to support the support information of SPS; According to described SPS switching-state information and described support information, base station judges whether described SPS switch is opened and whether described UE supports SPS, and continue to judge whether the MCS grade of described UE is less than the first default thresholding according to described MCS class information when judged result is and is, and whether the PDCCH resource accounting of described base station is greater than the 3rd default thresholding; That described judge module determines that described UE needs to change to described target dispatch mode if judged result is.
Particularly, in the particular embodiment, when speech business starts, use dynamic dispatching, if current SPS switch is cut out or UE do not support SPS, then use dynamic dispatching always; If SPS switch is for opening, then carry out again judging whether to carry out SPS scheduling.Judgement scheme is as follows: arrange SPS and dynamic dispatching self adaptation timer is N, the PDCCH resource accounting thresholding of the adaptive SPS of the should be scheduling of dynamic dispatching is A, it is B that SPS dispatches the adaptive PDCCH resource accounting thresholding that should be dynamic dispatching, the MCS level threshold of UE is C, judges from during dynamic dispatching self adaptation timer N time-out at each SPS based on different scheduling modes:
(1) the adaptive flow chart that should be SPS scheduling of dynamic dispatching as shown in Figure 3, and wherein the condition of demand fulfillment is that PDCCH resource accounting is greater than thresholding A and the MCS grade of current UE is less than thresholding C;
(2) the adaptive flow chart that should be dynamic dispatching of SPS scheduling as shown in Figure 4, and wherein the condition of demand fulfillment is that PDCCH resource accounting is less than thresholding C, and the MCS grade of current UE is greater than thresholding C.SPS unsuccessfully caused because of PRB Resourse Distribute if exist dispatches failed process not within the consideration of this algorithm
S204, if so, described UE is changed to described target dispatch mode by described base station.
S205, if not, described base station keeps the current scheduling mode of described UE.
Can find out according to above flow process, the dynamic dispatching proposed by application the present invention and the adaptive algorithm of semi-continuous scheduling, UE, in better employing dynamic dispatching, improves the utilance of interface-free resources; Dispatch at mid point or the not good enough SPS of employing, decrease the expense of PDCCH resource, thus improve the flexibility of voice service scheduling on the whole, improve the user capacity of base station.
For reaching above technical purpose, the invention allows for a kind of base station, as shown in Figure 5, comprising:
Determination module 510, treats the current scheduling mode determination target dispatch mode of dispatch terminal UE for basis;
Acquisition module 520, for according to described target dispatch mode determination schedule information, described schedule information at least comprises the MCS class information of described UE and the PDCCH resource accounting information of described base station;
Judge module 530, for determining that based on described schedule information described UE is the need of changing to described target dispatch mode;
Processing module 540, for changing to described target dispatch mode when the judged result of described judge module is for being by described UE; And the current scheduling mode of described UE is kept when the judged result of described judge module is no.
In concrete application scenarios, when described current scheduling mode is SPS scheduling, described target dispatch mode is dynamic dispatching; Described judge module specifically for:
Judge whether the MCS grade of described UE is greater than the first default thresholding according to described MCS class information and described PDCCH resource accounting information, and whether the PDCCH resource accounting of described base station is less than the second default thresholding; And determine when judged result is and is to need the scheduling mode to current to change.
In concrete application scenarios, when described current scheduling mode is dynamic dispatching, described target dispatch mode is SPS scheduling, and described schedule information also comprises: SPS switching-state information, indicates described UE whether to support the support information of SPS;
Described judge module, specifically for judging according to described SPS switching-state information and described support information whether described SPS switch is opened and whether described UE supports SPS, and continue to judge whether the MCS grade of described UE is less than the first default thresholding according to described MCS class information when judged result is and is, and whether the PDCCH resource accounting of described base station is greater than the 3rd default thresholding;
That described judge module determines that described UE needs to change to described target dispatch mode if judged result is.
In concrete application scenarios, also comprise:
Timing module, for indicating described determination module again according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE after the time period of presetting.
In concrete application scenarios, described timing module, specifically for arranging timer, and indicate when at described timer expiry described determination module according to described in treat the current scheduling mode determination target dispatch mode of dispatch terminal UE and described timer made zero;
Wherein, the time span of described set timer is consistent with the time span in the described default time period.
By applying technical scheme of the present invention, base station is first according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE, and determine schedule information further, finally determine that UE is the need of changing to target dispatch mode based on schedule information, achieve and adopt rational method to dispatch according to PDCCH resource expense and the current channel quality of UE, improve the user capacity of base station, reduce the time delay of VoP, improve speech quality.
Through the above description of the embodiments, those skilled in the art can be well understood to the application can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the application can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the application in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram preferably implementing scene, the module in accompanying drawing or flow process might not be that enforcement the application is necessary.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can carry out being distributed in the device of enforcement scene according to implementing scene description, also can carry out respective change and being arranged in the one or more devices being different from this enforcement scene.The module of above-mentioned enforcement scene can merge into a module, also can split into multiple submodule further.
Above-mentioned the application's sequence number, just to describing, does not represent the quality implementing scene.
Be only the several concrete enforcement scene of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of all should fall into the protection range of the application.
Claims (10)
1. a self-adapting dispatching method, is characterized in that, comprising:
Base station is according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE;
Described base station is according to described target dispatch mode determination schedule information, and described schedule information at least comprises the MCS class information of described UE and the physical downlink control channel PDCCH resource accounting information of described base station;
Based on described schedule information, described base station determines that described UE is the need of changing to described target dispatch mode;
If so, described UE is changed to described target dispatch mode by described base station;
If not, described base station keeps the current scheduling mode of described UE.
2. the method for claim 1, is characterized in that, when described current scheduling mode is SPS scheduling, described target dispatch mode is dynamic dispatching, and described base station determines whether to need to change to described target dispatch mode based on described schedule information, is specially:
According to described MCS class information and described PDCCH resource accounting information, described base station judges whether the MCS grade of described UE is greater than the first default thresholding, and whether the PDCCH resource accounting of described base station is less than the second default thresholding;
Then determine to need the scheduling mode to current to change if judged result is.
3. the method for claim 1, it is characterized in that, when described current scheduling mode is dynamic dispatching, described target dispatch mode is SPS scheduling, described schedule information also comprises: SPS switching-state information, indicates described UE whether to support the support information of SPS;
Described base station determines whether to need to change to described target dispatch mode based on described schedule information, is specially:
According to described SPS switching-state information and described support information, described base station judges whether described SPS switch is opened and whether described UE supports SPS, and continue to judge whether the MCS grade of described UE is less than the first default thresholding according to described MCS class information when judged result is and is, and whether the PDCCH resource accounting of described base station is greater than the 3rd default thresholding;
That described judge module determines that described UE needs to change to described target dispatch mode if judged result is.
4. the method for claim 1, is characterized in that, after described base station is determined to need or do not need to modify to current scheduling mode, also comprises:
Described base station is after the time period of presetting, and basis treats the current scheduling mode determination target dispatch mode of dispatch terminal UE again.
5. method as claimed in claim 4, is characterized in that, described base station, after the time period of presetting, again according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE, is specially:
Described base station arranges timer; Wherein, the time span of described set timer is consistent with the time span in the described default time period;
Described timer, when described timer expiry, according to the described current scheduling mode determination target dispatch mode treating dispatch terminal UE, and makes zero by described base station.
6. a base station, is characterized in that, comprising:
Determination module, treats the current scheduling mode determination target dispatch mode of dispatch terminal UE for basis;
Acquisition module, for according to described target dispatch mode determination schedule information, described schedule information at least comprises the MCS class information of described UE and the physical downlink control channel PDCCH resource accounting information of described base station;
Judge module, for determining that based on described schedule information described UE is the need of changing to described target dispatch mode;
Processing module, for changing to described target dispatch mode when the judged result of described judge module is for being by described UE; And the current scheduling mode of described UE is kept when the judged result of described judge module is no.
7. base station as claimed in claim 6, is characterized in that, when described current scheduling mode is SPS scheduling, described target dispatch mode is dynamic dispatching; Described judge module specifically for:
Judge whether the MCS grade of described UE is greater than the first default thresholding according to described MCS class information and described PDCCH resource accounting information, and whether the PDCCH resource accounting of described base station is less than the second default thresholding; And determine when judged result is and is to need the scheduling mode to current to change.
8. base station as claimed in claim 6, it is characterized in that, when described current scheduling mode is dynamic dispatching, described target dispatch mode is SPS scheduling, described schedule information also comprises: SPS switching-state information, indicates described UE whether to support the support information of SPS;
Described judge module, specifically for judging according to described SPS switching-state information and described support information whether described SPS switch is opened and whether described UE supports SPS, and continue to judge whether the MCS grade of described UE is less than the first default thresholding according to described MCS class information when judged result is and is, and whether the PDCCH resource accounting of described base station is greater than the 3rd default thresholding;
That described judge module determines that described UE needs to change to described target dispatch mode if judged result is.
9. base station as claimed in claim 6, is characterized in that, also comprise:
Timing module, for indicating described determination module again according to the current scheduling mode determination target dispatch mode treating dispatch terminal UE after the time period of presetting.
10. base station as claimed in claim 9, is characterized in that,
Described timing module, specifically for arranging timer, and indicate when at described timer expiry described determination module according to described in treat the current scheduling mode determination target dispatch mode of dispatch terminal UE and described timer made zero;
Wherein, the time span of described set timer is consistent with the time span in the described default time period.
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| CN106550476A (en) * | 2017-01-17 | 2017-03-29 | 北京佰才邦技术有限公司 | A kind of resource regulating method and base station and terminal |
| CN107659620A (en) * | 2017-09-04 | 2018-02-02 | 广州市百果园信息技术有限公司 | VOIP lines service process collocation methods and device |
| CN108293254A (en) * | 2015-11-30 | 2018-07-17 | 华为技术有限公司 | Controlling equipment, scheduled equipment, resource regulating method and device |
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| CN104581970B (en) | 2018-05-29 |
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