CN104581970B - A kind of self-adapting dispatching method and equipment - Google Patents

A kind of self-adapting dispatching method and equipment Download PDF

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Publication number
CN104581970B
CN104581970B CN201410742716.9A CN201410742716A CN104581970B CN 104581970 B CN104581970 B CN 104581970B CN 201410742716 A CN201410742716 A CN 201410742716A CN 104581970 B CN104581970 B CN 104581970B
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mode
base station
sps
target dispatch
scheduling
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CN104581970A (en
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王桂英
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • 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
    • 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

Abstract

The invention discloses a kind of self-adapting dispatching methods, base station determines target dispatch mode according to the current scheduling mode for treating dispatch terminal UE first, and further determine that scheduling information, it is finally based on scheduling information and determines whether UE needs to be changed to target dispatch mode, it realizes and is scheduled according to the current channel quality of PDCCH resource expense and UE using rational method, the user capacity of base station is improved, the time delay of VoP is reduced, improves speech quality.

Description

A kind of self-adapting dispatching method and equipment
Technical field
The invention relates to field of communication technology, more particularly to a kind of self-adapting dispatching method.The embodiment of the present application Also relate to a kind of adaptive scheduling equipment.
Background technology
VoLTE is framework full IP (Internet on LTE (Long Term Evolution, Long Term Evolution) network Protocol, procotol) under the conditions of end-to-end speech solution.VoIP(Voice over Internet Protocol, the networking telephone) VoP has and periodically reaches, the characteristics of bag size is relatively fixed, both may be employed general Logical dynamic dispatching, can also use semi-continuous scheduling, and semi-continuous scheduling refers to adopt VOIP activation phase initial transmission voice packets With semi-continuous scheduling, the SID (system identification) of quiet period is wrapped and is retransmitted bag using dynamic dispatching.VoP it is defeated Go out rule as shown in Figure 1, in the transient state stages, no voice packet needs to dispatch, and can carry out other business at this time Dynamic dispatching；In the talk spurt state stages, user is conversing, and a sampling bag can be generated per 20ms, due to user Voice message generates predictable, it is possible to using semi-persistent scheduling, avoid carrying out dynamic dispatching every time, so as to probably can be with Obtain 20% or so voice transfer capability improving；In the Silent period stages, theory only has the background sounds of 160ms once Symbol is dispatched without voice data.
It is assisted according to 3GPP (The 3rd Generation Partnership Project, third generation partner program) View regulation, the advantage of dynamic dispatching are uplink and downlink MCS (Modulation and Coding Scheme, modulation and coding plan Slightly) rate range is 0~28, and as shown in Table 7.1.7.1-1 and Table 8.6.1-1 in 36.213, inferior position is to need often Secondary scheduling will issue DCI (Downlink Control Information, Downlink Control Information), PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) resource overhead is big.The MCS rate ranges of semi-continuous scheduling For 0~15, as shown in 36.213Table 9.2-1, but it is advantageous that only DCI need to be issued when each SPS is activated or is discharged, PDCCH resource expense is small.As shown in Table 1, the comparison of SPS scheduling and dynamic dispatching is given.When channel condition is fabulous, together In the case that sample dispatches 15 prb, the MCS grades of dynamic dispatching are 28, and the tbsize of scheduling is 11064.And SPS scheduling MCS grades are 15, by table 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 overheads Greatly It is small
MCS rate ranges 0~28 0~15
Table 1, the comparison of SPS scheduling and dynamic dispatching
As shown in Table 1, the implementation of the prior art is to start with dynamic dispatching in speech business, if currently SPS switches is open, and UE supports SPS scheduling, then configure UE and carry out SPS scheduling, no longer change afterwards；If SPS switches are pass It closes or UE does not support SPS to dispatch, then using dynamic dispatching.
Inventor has found that currently existing scheme realization method is single, very flexible, but does not examine in the implementation of the present invention Consider base station PDCCH resource actual overhead and the current channel qualities of UE, it is impossible to reasonable distribution not made to channel resource, reduced The population size of base station.
The content of the invention
The present invention proposes a kind of self-adapting dispatching method, to solve terminal UE scheduling mode in the prior art it is single and The problem of being not easy to adjust, this method include：
Base station determines target dispatch mode according to the current scheduling mode for treating dispatch terminal UE；
The base station determines scheduling information according to the target dispatch mode, and the scheduling information is including at least the UE's MCS class informations and the PDCCH resource accounting information of the base station；
The base station determines whether the UE needs to be changed to the target dispatch mode based on the scheduling information；
If so, the UE is changed to the target dispatch mode by the base station；
If it is not, the base station keeps the current scheduling mode of the UE.
Correspondingly, the invention also provides a kind of base station, including：
Determining module, for determining target dispatch mode according to the current scheduling mode for treating dispatch terminal UE；
Acquisition module, for determining scheduling information according to the target dispatch mode, the scheduling information includes at least institute State the MCS class informations of UE and the PDCCH resource accounting information of the base station；
Judgment module, for determining whether the UE needs to be changed to the target dispatch side based on the scheduling information Formula；
Processing module, for the UE to be changed to the target dispatch when being in the judging result of the judgment module Mode；And the current scheduling mode of the UE is kept when the judging result of the judgment module is no.
It can be seen that by applying the technical scheme of the present invention, base station is first according to the current scheduling for treating dispatch terminal UE Mode determines target dispatch mode, and further determines that scheduling information, is finally based on scheduling information and determines whether UE needs to change For target dispatch mode, realize and adjusted according to the current channel quality of PDCCH resource expense and UE using rational method Degree, improves the user capacity of base station, reduces the time delay of VoP, improve speech quality.
Description of the drawings
Fig. 1 is VOIP business models schematic diagram in the prior art；
Fig. 2 is a kind of flow diagram of self-adapting dispatching method proposed by the present invention；
Fig. 3 is by the adaptive flow diagram that should be SPS scheduling of dynamic dispatching in the specific embodiment of the invention；
Fig. 4 is to dispatch the adaptive flow diagram that should be dynamic dispatching by SPS in the specific embodiment of the invention；
Fig. 5 is a kind of structure diagram of base station proposed by the present invention.
Specific embodiment
To solve the problems, such as proposed in background technology, the present invention is based on TD-LTE mobile communication system, for VoLTE languages Voice service scheduling in sound solution proposes the adaptive algorithm of a kind of dynamic dispatching and semi-continuous scheduling, and the algorithm is comprehensive The quality for considering dynamic dispatching and semi-continuous scheduling is closed, by PDCCH (the Physical Downlink for judging cell Control Channel, Physical Downlink Control Channel) resource occupation amount and current MCS (the modulation and of UE Coding scheme, modulating-coding grade) grade realizes the adaptive of dynamic dispatching and semi-continuous scheduling, it is intended to reduce control The resource overhead of channel processed improves system user capacity.
As shown in Fig. 2, for a kind of flow diagram of self-adapting dispatching method proposed by the present invention, comprise the following steps：
S201, base station determine target dispatch mode according to the current scheduling mode for treating dispatch terminal UE.
S202, the base station determine scheduling information according to the target dispatch mode, and the scheduling information includes at least institute State the MCS class informations of UE and the PDCCH resource accounting information of the base station.
S203, the base station determine whether the UE needs to be changed to the target dispatch side based on the scheduling information Formula, if so, S204 is gone to, if it is not, going to S205.
Based on presently, there are SPS scheduling and dynamic dispatching both scheduling modes, the present invention be directed to following two situations Different processing procedures is proposed respectively, it is specific as follows：
(1) when the current scheduling mode is dispatched for SPS
In this case, target dispatch mode is dynamic dispatching, and base station is first according to MCS class informations and described PDCCH resource accounting information judges whether the MCS grades of the UE are more than default first thresholding and the base station Whether PDCCH resource accounting is less than default second thresholding；If judging result is to be, it is determined that is needed to current dispatching party Formula is modified.
(2) when the current scheduling mode is dynamic dispatching
In this case, the target dispatch mode is dispatched for SPS, and the scheduling information further includes：SPS on off states are believed Breath, indicates whether the UE supports the support information of SPS；Believed according to the SPS switching-state informations and the support base station Breath judges whether the SPS switches are opened and whether the UE supports SPS, and continues when judging result is to be according to institute It states MCS class informations and judges whether the MCS grades of the UE are less than the PDCCH moneys of default first thresholding and the base station Whether source accounting is more than default 3rd thresholding；If judging result is to be, the judgment module determines that the UE needs to change For the target dispatch mode.
Specifically, in the particular embodiment, speech business starts with dynamic dispatching, if current SPS switches are pass It closes or UE does not support SPS, then use dynamic dispatching always；If SPS switches are opening, then carry out judging whether to SPS Scheduling.Judgement scheme is as follows：It is N to set SPS and the adaptive timer of dynamic dispatching, and dynamic dispatching is adaptive to should be what SPS was dispatched PDCCH resource accounting thresholding is A, and it is B, the MCS of UE etc. that SPS, which dispatches the adaptive PDCCH resource accounting thresholding that should be dynamic dispatching, Grade thresholding is C, is judged in each SPS timer N time-out adaptive from dynamic dispatching based on different scheduling modes：
(1) the adaptive flow chart that should be SPS scheduling of dynamic dispatching is as shown in figure 3, it is PDCCH wherein to need the condition met Resource accounting is more than thresholding A and the MCS grades of current UE are less than thresholding C；
(2) SPS dispatches the adaptive flow chart that should be dynamic dispatching as shown in figure 4, it is PDCCH wherein to need the condition met Resource accounting is less than thresholding C, and the MCS grades of current UE are more than thresholding C.If in the presence of the SPS caused by the failure of PRB resource allocations The processing of failure is dispatched not within the considerations of this algorithm
S204, if so, the UE is changed to the target dispatch mode by the base station.
S205, if it is not, the base station keeps the current scheduling mode of the UE.
According to more than flow can be seen that by application dynamic dispatching proposed by the present invention and semi-continuous scheduling it is adaptive Algorithm, UE is in the better utilization rate for using dynamic dispatching, improving interface-free resources；At midpoint or almost using SPS scheduling, reduce The expense of PDCCH resource, so as on the whole improve the flexibility of voice service scheduling, the user for improving base station holds Amount.
To reach more than technical purpose, the invention also provides a kind of base station, as shown in figure 5, including：
Determining module 510, for determining target dispatch mode according to the current scheduling mode for treating dispatch terminal UE；
Acquisition module 520, for determining scheduling information according to the target dispatch mode, the scheduling information includes at least The MCS class informations of the UE and the PDCCH resource accounting information of the base station；
Judgment module 530, for determining whether the UE needs to be changed to the target dispatch based on the scheduling information Mode；
Processing module 540, for the UE to be changed to the target when being in the judging result of the judgment module Scheduling mode；And the current scheduling mode of the UE is kept when the judging result of the judgment module is no.
In specific application scenarios, when the current scheduling mode is dispatched for SPS, the target dispatch mode is State is dispatched；The judgment module is specifically used for：
Judge whether the MCS grades of the UE are big according to the MCS class informations and the PDCCH resource accounting information Whether the PDCCH resource accounting in default first thresholding and the base station is less than default second thresholding；And judging to tie Fruit is to determine to need to be modified current scheduling mode when being.
In specific application scenarios, when the current scheduling mode is dynamic dispatching, the target dispatch mode is SPS is dispatched, and the scheduling information further includes：SPS switching-state informations, indicate whether the UE supports the support information of SPS；
The judgment module, described in being judged according to the SPS switching-state informations and the support information Whether SPS switches are opened and whether the UE supports SPS, and continue when judging result is to be according to the MCS grades Information judge the MCS grades of the UE whether be less than default first thresholding and the base station PDCCH resource accounting whether More than default 3rd thresholding；
If judging result is to be, the judgment module determines that the UE needs to be changed to the target dispatch mode.
In specific application scenarios, further include：
Timing module, for indicating that basis treats dispatch terminal UE's to the determining module again after the default period Current scheduling mode determines target dispatch mode.
In specific application scenarios, the timing module specifically for setting timer, and surpasses in the timer Constantly indicate that the determining module treats that the current scheduling mode of dispatch terminal UE determines target dispatch mode and incites somebody to action according to The timer zero；
Wherein, the time span that the timer is set is consistent with the time span in the default period.
By applying the technical scheme of the present invention, base station determines mesh according to the current scheduling mode for treating dispatch terminal UE first Scheduling mode is marked, and further determines that scheduling information, scheduling information is finally based on and determines whether UE needs to be changed to target dispatch Mode is realized and is scheduled according to the current channel quality of PDCCH resource expense and UE using rational method, improves base The user capacity stood reduces the time delay of VoP, improves speech quality.
Through the above description of the embodiments, those skilled in the art can be understood that the application can lead to Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software.Based on such understanding, this Shen Technical solution please can be embodied in the form of software product, which can be stored in a non-volatile memories Medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in, it is used including some instructions so that a computer equipment (can be Personal computer, server or network equipment etc.) perform each implement scene of the application described in method.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Flow is not necessarily implemented necessary to the application.
It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also carry out one or more dresses that respective change is disposed other than this implement scene In putting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
Above-mentioned the application sequence number is for illustration only, does not represent the quality of implement scene.
Disclosed above is only several specific implementation scenes of the application, and still, the application is not limited to this, Ren Heben What the technical staff in field can think variation should all fall into the protection domain of the application.

Claims (6)

1. a kind of self-adapting dispatching method, which is characterized in that including：
Base station determines target dispatch mode according to the current scheduling mode for treating dispatch terminal UE；
The base station determines scheduling information according to the target dispatch mode, and the scheduling information includes at least the MCS of the UE Class information and the physical downlink control channel PDCCH resource accounting information of the base station；
The base station determines whether the UE needs to be changed to the target dispatch mode based on the scheduling information；
If so, the UE is changed to the target dispatch mode by the base station；
If it is not, the base station keeps the current scheduling mode of the UE；
When the current scheduling mode is dispatched for SPS, the target dispatch mode is dynamic dispatching, and the base station is based on described Scheduling information determines the need for being changed to the target dispatch mode, is specially：
The base station judges that the MCS grades of the UE are according to the MCS class informations and the PDCCH resource accounting information It is no whether to be less than default second thresholding more than the PDCCH resource accounting of default first thresholding and the base station；
If judging result is to be, it is determined that needs to be modified current scheduling mode；
When the current scheduling mode is dynamic dispatching, the target dispatch mode is dispatched for SPS, and the scheduling information is also wrapped It includes：SPS switching-state informations, indicate whether the UE supports the support information of SPS；
The base station determines the need for being changed to the target dispatch mode based on the scheduling information, is specially：
The base station according to the SPS switching-state informations and the support information judge the SPS switch whether open with And whether the UE supports SPS, and continuation judges the UE according to the MCS class informations when judging result is to be Whether MCS grades are less than default first thresholding and whether the PDCCH resource accounting of the base station is more than default 3rd Limit；
If judging result is to be, the judgment module determines that the UE needs to be changed to the target dispatch mode.
2. the method as described in claim 1, which is characterized in that determine to need in the base station or need not be to current tune After degree mode is modified, further include：
The base station determines target dispatch according to the current scheduling mode for treating dispatch terminal UE again after the default period Mode.
3. method as claimed in claim 2, which is characterized in that the base station is after the default period, and basis is treated again The current scheduling mode of dispatch terminal UE determines target dispatch mode, is specially：
The base station sets timer；Wherein, the time span that the timer is set in the default period when Between length it is consistent；
The base station determines target dispatch in the timer expiry, according to the current scheduling mode for treating dispatch terminal UE Mode, and the timer is zeroed.
4. a kind of base station, which is characterized in that including：
Determining module, for determining target dispatch mode according to the current scheduling mode for treating dispatch terminal UE；
Acquisition module, for determining scheduling information according to the target dispatch mode, the scheduling information includes at least the UE MCS class informations and the base station physical downlink control channel PDCCH resource accounting information；
Judgment module, for determining whether the UE needs to be changed to the target dispatch mode based on the scheduling information；
Processing module, for the UE to be changed to the target dispatch side when being in the judging result of the judgment module Formula；And the current scheduling mode of the UE is kept when the judging result of the judgment module is no；
When the current scheduling mode is dispatched for SPS, the target dispatch mode is dynamic dispatching；The judgment module is specific For：
It is pre- to judge whether the MCS grades of the UE are more than according to the MCS class informations and the PDCCH resource accounting information If the first thresholding and the base station PDCCH resource accounting whether be less than default second thresholding；It is and equal in judging result It determines to need to be modified current scheduling mode during to be；
When the current scheduling mode is dynamic dispatching, the target dispatch mode is dispatched for SPS, and the scheduling information is also wrapped It includes：SPS switching-state informations, indicate whether the UE supports the support information of SPS；
The judgment module, specifically for judging that the SPS is opened according to the SPS switching-state informations and the support information Whether pass opens and whether the UE supports SPS, and continues to be sentenced according to the MCS class informations when judging result is to be Whether the MCS grades of the disconnected UE are less than default first thresholding and whether the PDCCH resource accounting of the base station is more than in advance If the 3rd thresholding；
If judging result is to be, the judgment module determines that the UE needs to be changed to the target dispatch mode.
5. base station as claimed in claim 4, which is characterized in that further include：
Timing module, for indicating that basis treats that dispatch terminal UE's is current to the determining module again after the default period Scheduling mode determines target dispatch mode.
6. base station as claimed in claim 5, which is characterized in that
The timing module specifically for setting timer, and is indicating the determining module root in the timer expiry Target dispatch mode is determined according to the current scheduling mode for treating dispatch terminal UE and the timer is zeroed；
Wherein, the time span that the timer is set is consistent with the time span in the default period.
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KR102138111B1 (en) * 2015-11-30 2020-07-27 후아웨이 테크놀러지 컴퍼니 리미티드 Scheduling device, scheduling device, and resource scheduling method and device
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
CN109302750A (en) * 2017-07-24 2019-02-01 中国移动通信集团广东有限公司 Method of adjustment, device, equipment and the storage medium of adaptive convergence scheduling feature
CN107659620B (en) * 2017-09-04 2020-07-07 广州市百果园信息技术有限公司 VOIP line service process configuration method and device
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