CN109548161A - A kind of method, apparatus and terminal device of wireless resource scheduling - Google Patents
A kind of method, apparatus and terminal device of wireless resource scheduling Download PDFInfo
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- CN109548161A CN109548161A CN201811543040.5A CN201811543040A CN109548161A CN 109548161 A CN109548161 A CN 109548161A CN 201811543040 A CN201811543040 A CN 201811543040A CN 109548161 A CN109548161 A CN 109548161A
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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
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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
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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
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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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
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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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
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention be suitable for wireless communication technical field, provide a kind of method and device of wireless resource scheduling, comprising: obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；According to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, will sort described in forward preset quantity to controlling equipment as initial clustering point device；Using not as described in the initial clustering point device to controlling equipment as equipment to be clustered；By the equipment to be clustered, the cluster initial clustering point device nearest to distance forms cluster；The coordinate value iteration of each cluster is updated, when the coordinate value of each cluster does not change or reaches maximum number of iterations, the scheduling radio resource to controlling equipment.The cluster to be formed is clustered to controlling equipment by priority size is similar, according to the cluster scheduling radio resources of formation, in the case where guaranteeing each to controlling equipment business service quality, and can take into account fairness.
Description
Technical field
The invention belongs to the method, apparatus and end of the technical field of wireless communication more particularly to a kind of wireless resource scheduling
End equipment.
Background technique
With the arrival of 5G technology, i.e. the 5th third-generation mobile communication technology.But 5G, unlike 4G, 3G, 2G, 5G is not
It is independent, completely new wireless access technology, but to the technology of existing wireless access technology (including 2G, 3G, 4G and WiFi)
The general name of solution after evolution and some newly-increased complementarity wireless access technologys are integrated.In 5G system, it will exist
Using multiple standards, the user equipment of multiple types exists, such as 4G, 5G, wifi or satellite communication etc..Various criterion simultaneously
It is also different with the type of service of the user equipment of standard, such as video traffic, live broadcast service, game service etc., due to each use
Data caused by channel circumstance locating for the length difference of the business data packet of family equipment and each user equipment is different pass
The problem of defeated delay is different, these factors will cause user's scheduling fairness.
Traditional solution is that system is analyzed and simulated based on domain knowledge and experience, so that making has
It is targetedly regular.The effect of the method depends primarily on the design phase, once design is completed, system will be according to being previously set
Rule running.Under current network environment, flow shows the development trend of diversification and mobilism, and network and money
The framework in source all becomes more complicated, therefore this method is faced with increasing challenge, is not able to satisfy complicated network and money
Communication requirement under the framework of source.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method of wireless resource scheduling and terminal device, it is existing to solve
There is the problem of battery health is predicted in technology.
The first aspect of the embodiment of the present invention provides a kind of method of wireless resource scheduling, comprising:
Obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
According to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, will sort forward pre-
If quantity it is described to controlling equipment as initial clustering point device, by not as described in the initial clustering point device wait adjust
Equipment is spent as equipment to be clustered；
By the equipment to be clustered, the cluster initial clustering point device nearest to distance forms cluster；
The coordinate value iteration of each cluster is updated, when the coordinate value of each cluster does not change or reach greatest iteration time
Number, the scheduling radio resource to controlling equipment.
The second aspect of the embodiment of the present invention provides a kind of device of wireless resource scheduling, comprising:
Acquiring unit, for obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
Selecting unit, according to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, will arrange
The forward preset quantity of sequence it is described to controlling equipment as initial clustering point device, the initial clustering point device will be used as
It is described to controlling equipment as equipment to be clustered；
Cluster cell, for by the equipment to be clustered, the cluster initial clustering point device nearest to distance to be formed
Cluster；
Calculating and scheduling unit are updated for the coordinate value iteration to each cluster, when the coordinate value of each cluster does not become
Change or reach maximum number of iterations, the scheduling radio resource to controlling equipment.
The third aspect of the embodiment of the present invention provides a kind of terminal device, including memory, processor and is stored in
In the memory and the computer program that can run on the processor, when the processor executes the computer program
The step of realizing above-mentioned first aspect and/or second aspect the method.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, and the computer program realizes above-mentioned first aspect and/or second party when being executed by processor
The step of face the method.
Existing beneficial effect is the embodiment of the present invention compared with prior art: waiting for dispatching concentration each wait adjust according to system
The channel circumstance of equipment, business datum length and average transmission delay are spent, is calculated each to the dispatching priority of controlling equipment,
Therefrom select preset quantity to controlling equipment as initial clustering point device, to dispatching concentration, other wait for controlling equipment to cluster.
Intelligent selection user equipment is scheduled in the user equipment with different delayed time, is guaranteeing each user apparatus service
Service quality, and fairness can be taken into account, so that different channels environment and different data lengths have the user of different delayed time all
The fair acquisition transmission opportunity of energy.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of method implementation flow chart of wireless resource scheduling provided in an embodiment of the present invention；
Fig. 2 is the implementation process signal of step 101 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
Figure；
Fig. 3 is the implementation process signal of step S103 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
Figure；
Fig. 4 is the implementation process signal of step S301 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
Figure；
Fig. 5 is the implementation process signal of step S104 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
Figure；
Fig. 6 is a kind of schematic diagram of the device of wireless resource scheduling provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of wireless resource scheduling device/terminal device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this description of the invention merely for the sake of description specific embodiment
And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
Wireless communication of the present invention, which refers to, carries out letter using the characteristic that electromagnetic wave signal can be propagated in free space
Cease a kind of communication mode of exchange.And wirelessly communicate and need to be scheduled distribution to radio resource by communication system end, in order to
Under complicated network environment, the fairness of multi-subscriber dispatching is solved the problems, such as, the present invention proposes a kind of wireless resource scheduling
Method, referring to Figure 1, Fig. 1 are a kind of method implementation flow charts of wireless resource scheduling provided in an embodiment of the present invention.Such as Fig. 1
Shown in a kind of method of wireless resource scheduling include:
S101, obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment.
Wherein described to controlling equipment includes but is not limited to the communication equipments such as mobile terminal.The priority refers to described more
A sequencing that priority scheduling is enjoyed to controlling equipment.It is all according to communication system within unified dispatching cycle of communication system
Described to be delayed to the channel circumstance of controlling equipment, business datum length and average transmission, training is the multiple to controlling equipment,
Respective dispatching priority is obtained, and is ranked up according to priority.
Illustratively, within a dispatching cycle, if described good to controlling equipment channel condition, its transmission is prolonged
When it is also smaller, will make its priority improve；If described poor to controlling equipment channel condition, signal-to-noise ratio is lower for a long time,
It cannot get transmission opportunity, then the average transmission delay to controlling equipment just will increase, its priority can equally improved,
Obtain transmission opportunity.When the acquisition of long grouping user is more serviced than short grouping user, the average transmission of short grouping user
Delay will will increase, its priority can similarly improved, and obtain transmission opportunity.High described preferential to controlling equipment of priority
Scheduling radio resources, guarantee its communication quality, and priority is lower described to controlling equipment, need to wait for priority it is high it is described to
After the completion of controlling equipment scheduling, then carry out the scheduling of radio resource.
S102, according to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, sequence is leaned on
Preceding preset quantity it is described to controlling equipment as initial clustering point device, by the institute not as the initial clustering point device
It states to controlling equipment as equipment to be clustered.
Described in the initial clustering point device refers to corresponding to the cluster point chosen before the cluster to controlling equipment
To controlling equipment.And the selection of the initial clustering point device preset quantity is incited somebody to action according to different clustering algorithms or artificial decision
The class for being divided into preset quantity to controlling equipment in cluster set.In the present invention for the initial clustering point device
Choose, according to it is the multiple in controlling equipment priority orders choose preset quantity priority it is high described in controlling equipment.
Wherein, cluster refers to the process of that the set by physics or abstract object is divided into and is referred to as poly- by multiple classes that similar object forms
Class, by clustering the set that cluster generated is one group of data object, these objects and the object in the same cluster are similar to each other, with
Object in other clusters is different.Similar channel circumstance, business datum length and average transmission are delayed in the present embodiment
Cluster to controlling equipment into same a cluster, i.e., will similar in priority to controlling equipment cluster to together.
S103, by the equipment to be clustered, the cluster initial clustering point device nearest to distance forms cluster.
According to the initial clustering point that step S102 is obtained, by the waiting transmission delay of the equipment to be clustered and averagely
Transmission delay calculates the equipment to be clustered at a distance from the initial clustering point device as coordinate value.It is described to be clustered to set
The standby cluster initial clustering point device nearest to distance, forms cluster.Cluster described herein refers to the multiple wait adjust
It spends equipment to complete after clustering, and forms the similar collection to controlling equipment of multiple priority sizes and be collectively referred to as cluster.It is being formed
After cluster, the cluster formed according to cluster is to controlling equipment scheduling radio resources.
S104 updates the coordinate value iteration of each cluster, when each cluster coordinate value maximum that do not change or reach changes
Generation number, the scheduling radio resource to controlling equipment.
The coordinate value of each cluster refers to each cluster for clustering to be formed to controlling equipment in step s 103, the institute in cluster
Need the average value size of controlling equipment coordinate value.
Wherein, the coordinate value iteration of each cluster is updated, including two repetition steps:
Step 1: the coordinate value of obtained each cluster will be iterated to calculate every time by referring to, replace last iterative calculation
The coordinate value of obtained each cluster forms new cluster point.
Step 2: according to the new coordinate value for clustering point, described clustered again to controlling equipment to distance is nearest is gathered
Class point forms new cluster.
Realize that the iteration of the coordinate value of cluster updates by step 1 and step 2.Each cluster is obtained in the present invention new
Cluster, calculate a cluster point coordinate value using new cluster, clustered to controlling equipment to distance by new cluster point coordinate value by described
Nearest cluster point forms new cluster, and so on update each cluster coordinate value, until each cluster coordinate value is not sent out
Changing reaches maximum number of iterations, that is, completes cluster.
When each cluster coordinate value does not change or reach maximum number of iterations, obtained according to step S101 excellent
First grade sequence is to described to controlling equipment scheduling radio resources.High described of priority wirelessly provides to controlling equipment priority scheduling
Source, guarantees its communication quality, and priority is lower described to controlling equipment, needs to wait for high described to controlling equipment tune of priority
After the completion of degree, then carry out the scheduling of radio resource.The radio resource includes but is not limited to frequency, power, time, space, code
The communication resources such as resource.And the scheduling is the distribution principle of a kind of pair of wireless communication resources, refers specifically to the item in finite bandwidth
Under part, wirelessly to provide quality of service guarantee to controlling equipment in network, basic point of departure is distributed not in network traffic
Uniformly, for the characteristic of channel due to channel is weak and interference when fluctuations, flexible allocation and dynamic adjust wireless transmission means
Divide the available resources with network, farthest improves wireless frequency spectrum utilization rate.
In embodiments of the present invention, according to described to the channel circumstance of controlling equipment, business datum length and transmission delay,
The priority size to controlling equipment is obtained, priority size is similar described after controlling equipment clusters cluster, root
Priority size according to each cluster described in each cluster to, to controlling equipment scheduling radio resources, ensure that in limited wireless money
The fairness of resource is distributed under source.
Optionally, step S101 in above-mentioned embodiment illustrated in fig. 1 is realized especially by following steps S201 to S207, is asked
Referring to fig. 2, Fig. 2 is the implementation process signal of step S101 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
Figure.As shown in Fig. 2, step S101 includes:
S201 is obtained each to the channel equalization matrix of controlling equipment.
The channel equalization refers to the equilibrium to the characteristic of channel, i.e. the balanced device of receiving end generates opposite with the characteristic of channel
Characteristic, for reducing or eliminating the time-varying multipath transmisstion characteristic because of channel caused by intersymbol interference.And channel equalization is to pass through
Balanced device is realized in terminal receiver, including MMSE receiver, CCMC receiver etc., and the present invention uses MMSE receiver,
This is without limitation.For MMSE receiver, each channel equalization matrix to controlling equipment of the present embodiment can pass through letter
Numerical expressionEach channel equalization matrix to controlling equipment is obtained, wherein HpIndicate channel square
Battle array,Indicate that the conjugate matrices of channel matrix, I indicate that unit matrix, Es indicate to receive power.
S202 obtains each transmission signal to controlling equipment according to the channel equalization matrix.
Each channel equalization matrix to controlling equipment is obtained according to step S201, passes through functional expression:Each transmission signal by channel equalization to controlling equipment is obtained, wherein
It indicates to send power, r, which is represented, receives signal, and n indicates that noise, s indicate to send signal.
S203 obtains each signal-to-noise ratio to controlling equipment according to the transmission signal.
The signal-to-noise ratio refers to the ratio of signal and noise in an electronic equipment or electronic system.Here signal
Refer to the electronic signal for needing to be handled by this equipment from device external, noise refers to by generating after the equipment
Original signal in not existing random extra (or information), and this kind of signal not with the variation of original signal and
Variation.It is to determine dispatching concentration each to the communication quality of controlling equipment that the present embodiment, which calculates signal-to-noise ratio,.It is of the present invention
Multiple signal-to-noise ratio to controlling equipment can obtain the multiple hair by channel equalization to controlling equipment according to step S202
The number of delivering letters obtains the ratio for sending signal power and noise power, passes through the functional expression of signal-to-noise ratioThe multiple signal-to-noise ratio to controlling equipment of dispatching concentration is obtained, whereinIt indicates
The m row of matrix G, m maximum value are the quantity of communication system antenna, and n maximum value is the multiple number to controlling equipment antenna
Amount, hn,mRepresenting matrix HPM column, hn,jRepresenting matrix HPJth column, j be not equal to m, N0Indicate noise power spectral density.
S204 obtains the transmission rate to controlling equipment according to the signal-to-noise ratio.
The transmission rate refers to the number of the data volume of transmitted per unit time.The present embodiment dispatching concentration is each wait adjust
Spend the transmission rate of equipment, can be obtained according to step S203 institute it is each described in signal-to-noise ratio to controlling equipment, pass through functional expression: R
=log2(1+γn,m), obtain each transmission rate to controlling equipment.
S205 obtains each business datum length to controlling equipment, according to each biography to controlling equipment
Defeated rate obtains each waiting transmission delay to controlling equipment.
Wherein the business datum length refers to the data length for the various communication services that wireless communication provides, and business number
According to length corresponding data can be obtained by communication system.It waits transmission delay to refer under conditions of finite bandwidth, is set wait dispatch
Delay caused by standby waiting system scheduling radio resources.The business datum length currently to controlling equipment is assumed in the present embodiment
For Fi, wherein i indicates i-th of dispatching concentration to controlling equipment, and i maximum value is the quantity to controlling equipment, the present embodiment
Each waiting transmission delay to controlling equipment, can be according to the transmission speed to controlling equipment each in step S204
Rate passes through functional expression:Each waiting transmission delay to controlling equipment is obtained, wherein FjAnd RjIt indicates
System is selected the multiple to be not equal to j-th in the controlling equipment business datum length and transmission rate and j to controlling equipment
I, j maximum value are the quantity to controlling equipment.
S206 is obtained according to each waiting transmission delay to controlling equipment and dynamic update is each described
Average transmission to controlling equipment is delayed.
Transmission delay refers in message transmitting procedure since the distance to be passed through is remote or some failures lead to transmission not
The time for thering is end of achieving the goal on time to generate.And the delay of average transmission described in the present embodiment refers to that some waits for that controlling equipment is every
It is secondary from transmit a signal to destination receive signal caused by average time.It is obtained according to step S205 described to controlling equipment
Transmission delay is waited, functional expression is passed through:Obtain and dynamic update in it is each described to
The average transmission of controlling equipment is delayed, and wherein T indicates time constant,Show that each average transmission to controlling equipment is prolonged
When,Indicate that each average transmission to controlling equipment is delayed at t time point.
S207 is delayed according to each average transmission to controlling equipment, obtains each described to controlling equipment
Dispatching priority.
Each waiting transmission delay and average transmission to controlling equipment is obtained according to step S205 and S206
Delay, passes through functional expression:Obtain each dispatching priority to controlling equipment.
In embodiments of the present invention, according to described to the channel circumstance of controlling equipment, business datum length and transmission delay,
The priority size to controlling equipment is obtained, the cluster for the subsequent equipment to be clustered provides foundation.
Optionally, on the basis of embodiment shown in Fig. 2, step S203 in above-mentioned embodiment illustrated in fig. 1, especially by with
Lower step S301 to S303 is realized, refers to Fig. 3, Fig. 3 is a kind of method of wireless resource scheduling provided in an embodiment of the present invention
The implementation process schematic diagram of middle step S103.As shown in figure 3, step S103 includes:
S301, by each waiting transmission delay T to controlling equipmentiIt is delayed with the average transmissionCombination
At coordinate value.
In step S207, priority size is obtained according to each to the waiting transmission delay and average transmission of controlling equipment
Delay calculates priority.And it is described there is mobility to controlling equipment, and because of factors shadows such as channel circumstance, business datum length
It rings, so that reality does not have relevance apart from the adjacent priority size to controlling equipment.Therefore the present embodiment passes through each wait adjust
Spend the waiting transmission delay T of equipmentiWith average transmission delay TiAs coordinate value, calculate each to controlling equipment and initial clustering
The priority similarity distance of point device.
Specifically, as shown in figure 4, Fig. 4 is step in a kind of method of wireless resource scheduling provided in an embodiment of the present invention
The implementation process schematic diagram of S301, step S301 include step S401 to S402:
S401 generates the coordinate value of each initial clustering point device.
According to the waiting transmission delay and average transmission delay of initial clustering point device, the initial clustering point device is generated
Coordinate value.The coordinate value of each initial clustering point device is denoted asWherein k
Maximum value is initial clustering point device quantity.Tk-1For the waiting transmission delay of initial clustering point device,For initial clustering point
The average transmission of equipment is delayed.
S402 generates the coordinate value of each equipment to be clustered.
According to the waiting transmission delay and average transmission delay of equipment to be clustered, the seat of the initial clustering point device is generated
Scale value.The coordinate value of each equipment to be clustered is recorded asWherein p maximum value is
To the quantity of controlling equipment, Tp-1For the waiting transmission delay of equipment to be clustered,It is delayed for the average transmission of equipment to be clustered.
S302 calculates separately the distance between each equipment to be clustered and each initial clustering point device.
It should be noted that the distance of the present embodiment meaning is not showing between equipment to be clustered and initial clustering point device
Actual distance from, but it is a kind of according to it is multiple between controlling equipment wait transmission delays and average transmission delay be coordinate it is excellent
First grade phase knowledge and magnanimity distance, including but not limited to Euclidean distance and manhatton distance etc..And transmission delay and average transmission is waited to prolong
When be the basis calculated to controlling equipment priority, therefore really to calculate priority size similar to be clustered for coordinates computed value
Equipment, the cluster between subsequent equipment to be clustered and initial clustering point device provide foundation.
As an embodiment of the present invention, distance uses Euclidean distance.Specifically, it is calculated using the following equation Euclidean distance:
According to above-mentioned formula, dispatching concentration equipment to be clustered is obtained at a distance from initial clustering point device.
S303, according to the calculated result of the distance, by each equipment to be clustered cluster to distance recently described in
Initial clustering point device forms cluster.
The equipment to be clustered clusters the initial clustering point device nearest to distance, and apart from it is nearest represent it is described to
It clusters equipment and the initial clustering point device priority size is close, so each cluster and one group of priority that are formed are big
It is small similar to controlling equipment set.
In embodiments of the present invention, according to the priority size, priority size is similar to controlling equipment progress
Cluster is clustered, provides foundation for wireless resource scheduling.
Optionally, on the basis of embodiment shown in Fig. 3, step S104 in above-mentioned embodiment illustrated in fig. 1, as shown in figure 5,
Fig. 5 is the implementation process schematic diagram of step S104 in a kind of method of wireless resource scheduling provided in an embodiment of the present invention, including
Step S501 to S502.
S501 iterates to calculate the coordinate value of each cluster.
Pass through functional expression: Ti'=∑ Tm/ M (m=1,2 ..., M) andObtain each race
Coordinate value, wherein M represents the quantity to controlling equipment that each cluster includes, TmRepresent in each cluster m-th etc. it is to be passed
Defeated delay,M-th of average transmission delay in each cluster is represented, m is integer and maximum value is M.
S502 will iterate to calculate the obtained coordinate value every time, replace the coordinate that last iterative calculation obtains
Value, the maximum number of iterations until coordinate value of each cluster does not change or reaches then dispatch the nothing to controlling equipment
Line resource.
When the coordinate value of iterative calculation to each cluster does not change or reach maximum number of iterations, indicate all
Priority size is similar to be completed to cluster to controlling equipment, forms several clusters.According to the size of each cluster priority, scheduling to
The radio resource of controlling equipment.While guaranteeing communication quality, the fairness of wireless resource scheduling is also ensured.
In embodiments of the present invention, it ensure that according to k-means algorithm according to the initial clustering point device chosen in advance
The cluster result of k-means algorithm is divided according to fairness, is avoided because caused by random selection initial clustering point
Locally optimal solution problem is caused, the fairness problem of wireless resource scheduling is increased.
It should be noted that the present embodiment improves traditional k-means, due to traditional k-means algorithm
Selection to initial mass center is very sensitive, it is possible to cause locally optimal solution, and be unable to get global optimal solution, in order to gram
This problem is taken, the present embodiment improves traditional k-means algorithm, in step S201 into S207, according to system
Channel circumstance, business datum length and the average transmission delay of needed controlling equipment, calculate excellent to the scheduling of controlling equipment
First grade sequence, therefrom select preset quantity after controlling equipment is as initial clustering point.Further according to traditional k-means algorithm
Clustering to controlling equipment for initial clustering point device unselected to dispatching concentration, cluster does not change or reaches most
Big the number of iterations completes the scheduling for treating controlling equipment radio resource.It avoids in traditional k-means algorithm and randomly chooses just
Begin to cluster point and cause locally optimal solution problem.Using in the present invention, in the Service Quality for guaranteeing each user apparatus service
Amount, and fairness can be taken into account, so that different channels environment and different data lengths have the user of different delayed time can be fair
Acquisition transmission opportunity.
If the present invention provides a kind of devices 6 of wireless resource scheduling by Fig. 6, Fig. 6 is referred to, Fig. 6 is the embodiment of the present invention
A kind of schematic diagram of the device of the wireless resource scheduling provided, as shown in Figure 6 a kind of square law device of wireless resource scheduling include:
Acquiring unit 61, for obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
Selecting unit 62, for described being arranged from high to low to controlling equipment according to the dispatching priority to multiple
Sequence will sort described in forward preset quantity to controlling equipment as initial clustering point device；It will be not as described initial poly-
Class point device it is described to controlling equipment as equipment to be clustered；
Cluster cell 63, for by the equipment to be clustered, cluster to be to apart from the nearest initial clustering point device, shape
Cluster.
Calculating and scheduling unit 64 are updated for the coordinate value iteration to each cluster, when the coordinate value of each cluster does not occur
Change or reach maximum number of iterations, the scheduling radio resource to controlling equipment.
Optionally, acquiring unit 61 are specifically used for:
It obtains each to the channel equalization matrix of controlling equipment；
According to the channel equalization matrix, each transmission signal to controlling equipment is obtained；
According to the transmission signal, each signal-to-noise ratio to controlling equipment is obtained；
According to the signal-to-noise ratio, each transmission rate to controlling equipment is obtained；
Each business datum length to controlling equipment is obtained, according to each transmission speed to controlling equipment
Rate obtains each waiting transmission delay to controlling equipment；
According to each waiting transmission delay to controlling equipment, obtain and dynamic update it is each described wait adjust
Spend the average transmission delay of equipment；
It is delayed according to each average transmission to controlling equipment, obtains each scheduling to controlling equipment
Priority.
Optionally, the cluster cell 63, is specifically used for:
By each waiting transmission delay T to controlling equipmentiWith average transmission delay TiIt is combined into coordinate
Value；
Calculate separately the distance between each equipment to be clustered and each initial clustering point device；
According to the calculated result of the distance, each equipment to be clustered is clustered to initial poly- apart from recently described
Class point device forms cluster.
Optionally, the calculating and scheduling unit 64, are specifically used for:
Iterate to calculate the coordinate value of each cluster；
The obtained coordinate value will be iterated to calculate every time, replaces the coordinate value that last iterative calculation obtains, directly
The coordinate value to each cluster does not change or reaches maximum number of iterations, then wireless money of the scheduling to controlling equipment
Source.
The device of wireless resource scheduling provided by the invention, can be selected in the user equipment of different condition it is described to
Controlling equipment is scheduled, and is guaranteeing each service quality to controlling equipment business, and can take into account fairness, so that
Different channels environment and different data lengths have the acquisition transmission opportunity that can be fair to controlling equipment of different delayed time.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Fig. 7 is a kind of device/terminal device schematic diagram for wireless resource scheduling that one embodiment of the invention provides.Such as figure
Shown in 7, a kind of device/terminal device 7 of wireless resource scheduling of the embodiment includes: processor 70, memory 71 and deposits
Store up the computer program 72 that can be run in the memory 71 and on the processor 70, such as a kind of wireless resource scheduling
Program.The processor 70 realizes that above-mentioned a kind of each method of wireless resource scheduling is real when executing the computer program 72
Apply the step in example, such as step S101 to S104 shown in FIG. 1.Alternatively, the processor 70 executes the computer program
The function of each unit in above-mentioned each Installation practice, such as the function of unit 61 to 64 shown in Fig. 6 are realized when 72.
Illustratively, the computer program 72 can be divided into one or more units, one or more of
Unit is stored in the memory 71, and is executed by the processor 70, to complete the present invention.One or more of lists
Member can be the series of computation machine program instruction section that can complete specific function, and the instruction segment is for describing the computer journey
Implementation procedure of the sequence 72 in a kind of device/terminal device 7 of wireless resource scheduling.For example, the computer program 72
Acquiring unit, selecting unit, cluster cell, calculating and scheduling unit can be divided into, each unit concrete function is as follows:
Acquiring unit, for obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
Selecting unit, for according to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment,
It will sort described in forward preset quantity to controlling equipment as initial clustering point device；It will not be used as the initial clustering point
Equipment it is described to controlling equipment as equipment to be clustered；
Cluster cell, for by the equipment to be clustered, the cluster initial clustering point device nearest to distance to be formed
Cluster.
Calculating and scheduling unit are updated for the coordinate value iteration to each cluster, when the coordinate value of each cluster does not become
Change or reach maximum number of iterations, the scheduling radio resource to controlling equipment.
A kind of device/terminal device 7 of wireless resource scheduling can be desktop PC, notebook, palm electricity
Brain and cloud server etc. calculate equipment.A kind of device/terminal device of wireless resource scheduling may include, but not only limit
In processor 70, memory 71.It will be understood by those skilled in the art that Fig. 7 be only a kind of wireless resource scheduling device/
The example of terminal device 7 does not constitute the restriction to a kind of device/terminal device 7 of wireless resource scheduling, may include than figure
Show more or fewer components, perhaps the certain components of combination or different components, such as a kind of wireless resource scheduling
Device/terminal device can also include input-output equipment, network access equipment, bus etc..
Alleged processor 70 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 71 can be a kind of internal storage unit of device/terminal device 7 of wireless resource scheduling,
Such as the hard disk or memory of a kind of device/terminal device 7 of wireless resource scheduling.The memory 71 is also possible to described one kind
The External memory equipment of device/terminal device 7 of wireless resource scheduling, such as a kind of device/end of wireless resource scheduling
The plug-in type hard disk being equipped in end equipment 7, intelligent memory card (Smart Media Card, SMC), secure digital (Secure
Digital, SD) card, flash card (Flash Card) etc..Further, the memory 71 can also both include described one kind
The internal storage unit of device/terminal device 7 of wireless resource scheduling also includes External memory equipment.The memory 71 is used for
Store other program sum numbers needed for device/terminal device of the computer program and a kind of wireless resource scheduling
According to.The memory 71 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..Computer-readable Jie
Matter may include: can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk,
Magnetic disk, CD, computer storage, read-only memory (Read-Only Memory, ROM), random access memory (Random
Access Memory, RAM), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the meter
The content that calculation machine readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice,
It such as does not include electric carrier signal and telecommunications according to legislation and patent practice, computer-readable medium in certain jurisdictions
Signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
Between protection scope of the present invention.
Claims (10)
1. a kind of method of wireless resource scheduling, which comprises the following steps:
Obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
According to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, by the forward present count that sorts
Amount it is described to controlling equipment as initial clustering point device, will not set as described in the initial clustering point device wait dispatch
It is standby to be used as equipment to be clustered；
By the equipment to be clustered, the cluster initial clustering point device nearest to distance forms cluster；
The coordinate value iteration of each cluster is updated, when the coordinate value of each cluster does not change or reaches maximum number of iterations,
The scheduling radio resource to controlling equipment.
2. the method as described in claim 1, which is characterized in that it is described obtain it is multiple in controlling equipment each to controlling equipment
Dispatching priority, comprising:
It obtains each to the channel equalization matrix of controlling equipment；
According to the channel equalization matrix, each transmission signal to controlling equipment is obtained；
According to the transmission signal, each signal-to-noise ratio to controlling equipment is obtained；
According to the signal-to-noise ratio, each transmission rate to controlling equipment is obtained；
Each business datum length to controlling equipment is obtained to be obtained according to each transmission rate to controlling equipment
Obtain each waiting transmission delay to controlling equipment；
According to each waiting transmission delay to controlling equipment, obtains and dynamic update is each described to controlling equipment
Average transmission delay；
It is delayed according to each average transmission to controlling equipment, obtains each dispatching priority to controlling equipment
Grade.
3. method according to claim 2, which is characterized in that described by the equipment to be clustered, cluster is nearest to distance
The initial clustering point device forms cluster, comprising:
By each waiting transmission delay T to controlling equipmentiWith average transmission delay TiIt is combined into coordinate value；
Calculate separately the distance between each equipment to be clustered and each initial clustering point device；
According to the calculated result of the distance, each equipment to be clustered is clustered to the initial clustering point nearest to distance
Equipment forms cluster.
4. method as claimed in claim 3, described by each waiting transmission delay T to controlling equipmentiWith it is described
Average transmission delayIt is combined into coordinate value, comprising:
Generate the coordinate value of each initial clustering point deviceWherein k is positive
Integer, maximum value are the quantity of the initial clustering point device；
Generate the coordinate value of each equipment to be clusteredWherein p is positive integer, most
Big value is the quantity of the equipment to be clustered；
Correspondingly, calculating separately the distance between each equipment to be clustered and each initial clustering point device, comprising:
Pass through functional expression:Calculate separately it is each it is described to
Cluster the distance between equipment and each initial clustering point device.
5. method as claimed in claim 3, which is characterized in that the coordinate value iteration to each cluster updates, when each cluster
Coordinate value does not change or reaches maximum number of iterations, the scheduling radio resource to controlling equipment, comprising:
Pass through functional expression: Ti'=∑ Tm/ M (m=1,2 ..., M) andIterate to calculate each cluster
Coordinate value, wherein M represents the quantity to controlling equipment that each cluster includes, TmRepresent in each cluster m-th etc. it is to be transmitted
Delay,M-th of average transmission delay in each cluster is represented, m maximum value is M；
The obtained coordinate value will be iterated to calculate every time, replaces the coordinate value that last iterative calculation obtains, until every
The coordinate value of a cluster does not change or reaches maximum number of iterations, then radio resource of the scheduling to controlling equipment.
6. a kind of device of wireless resource scheduling characterized by comprising
Acquiring unit, for obtain it is multiple in controlling equipment each to the dispatching priority of controlling equipment；
Selecting unit, according to the dispatching priority to it is multiple it is described be ranked up from high to low to controlling equipment, sequence is leaned on
Preceding preset quantity it is described to controlling equipment as initial clustering point device, by the institute not as the initial clustering point device
It states to controlling equipment as equipment to be clustered；
Cluster cell, for by the equipment to be clustered, the cluster initial clustering point device nearest to distance to form cluster；
Calculate and scheduling unit, updated for the coordinate value iteration to each cluster, do not change when the coordinate value of each cluster or
Person reaches maximum number of iterations, the scheduling radio resource to controlling equipment.
7. a kind of device of wireless resource scheduling as claimed in claim 6, which is characterized in that the acquiring unit is specifically used for:
It obtains each to the channel equalization matrix of controlling equipment；
According to the channel equalization matrix, each transmission signal to controlling equipment is obtained；
According to the transmission signal, each signal-to-noise ratio to controlling equipment is obtained；
According to the signal-to-noise ratio, each transmission rate to controlling equipment is obtained；
Each business datum length to controlling equipment is obtained to be obtained according to each transmission rate to controlling equipment
Obtain each waiting transmission delay to controlling equipment；
According to each waiting transmission delay to controlling equipment, it obtains and dynamic updates each described set wait dispatch
Standby average transmission delay；
It is delayed according to each average transmission to controlling equipment, obtains each dispatching priority to controlling equipment
Grade.
8. a kind of device of wireless resource scheduling as claimed in claim 6, which is characterized in that the cluster cell is specifically used for:
Calculate separately the distance between each equipment to be clustered and each initial clustering point device；
According to the calculated result of the distance, each equipment to be clustered is clustered to the initial clustering point nearest to distance
Equipment forms cluster.
9. a kind of device/terminal device of wireless resource scheduling, including memory, processor and storage are in the memory
And the computer program that can be run on the processor, which is characterized in that when the processor executes the computer program
It realizes such as the step of any one of claim 1 to 5 the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 5 of realization the method.
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