CN107959517A - A kind of method and system of the wireless power cloud based on large-scale antenna array - Google Patents
A kind of method and system of the wireless power cloud based on large-scale antenna array Download PDFInfo
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- CN107959517A CN107959517A CN201711097417.4A CN201711097417A CN107959517A CN 107959517 A CN107959517 A CN 107959517A CN 201711097417 A CN201711097417 A CN 201711097417A CN 107959517 A CN107959517 A CN 107959517A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0426—Power distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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Abstract
The invention discloses a kind of method and system of the wireless power cloud based on large-scale antenna array, it is related to wireless communication technology field.This method includes：Found idle energy factors and define the calculation formula of the idle energy factors of antenna in large-scale antenna array；Status information is uploaded to Cloud Server by the antenna in large-scale antenna array；Cloud Server calculates the idle energy factors of each antenna according to status information, and the antenna for selecting specified number is added in antenna resources pond；For Cloud Server according to the dispatching algorithm based on idle energy factors, dynamically selecting can occupied antenna；As can occupied antenna registered in Cloud Server, Cloud Server according to using need for registration after antenna assignment power resource, until the antenna use after delivered power resource.The present invention realizes the cloud of wireless network power domain, efficiently solves the growing contradiction between non-renewable resources scarcity in network of various businesses quantity.
Description
Technical field
The present invention relates to wireless communication technology field, is specifically a kind of wireless power based on large-scale antenna array
The method and system of cloud.
Background technology
The application range of the network information is communicated and expanded extremely by 5G (the 5th third-generation mobile communication technology) from current " people-net "
The more extensive fields such as " people-net-thing " communication for coordination, super-intensive connection Internet of Things, car networking and industry internet.Future
5~10 years, the long term growth direction of Networks and Communications technology was all things on earth interconnection, and connection quantity develops into hundred billion grades from 10,000,000,000 grades.
Therefore, it is expected to become a kind of network infrastructure covered on a large scale towards the arrowband Internet of Things of low-power consumption, super large connectivity application.
In the 5G epoch, the resource of wireless communication industry can have very much, can by other means optimize, mend mostly
Fill and perfect.But non-renewable wireless scarce resource only having time (time domain), frequency spectrum (frequency domain) and the energy (power domain),
They are the sunlight, air and water of the communications industry.During 4G networks are to 5G e-learning qualities, multifarious magnanimity decimal
According to business (such as：Sensor, wearable device, table kind equipment etc.) demand and be on the verge of scarcity Radio Resource formed it is abnormal tight
High contradiction, such as：It has been difficult that the continuous frequency spectrum resource for finding more than 300MHz is used as support, flow heat below 6GHz frequency ranges
Point peak value and average it is unknowable with time, geographical diversity, and network system and the power consumption of radio frequency link hardware it is increasing,
Easily there is the problems such as load imbalance.Therefore, the various resources in " cloud " wireless network are to solve the problems, such as these key.
At present, large-scale antenna array (massive MIMO) adds antenna aperature, can be reduced by relevant merging
Transmission power needed for uplink downlink, meets the requirement of following " green communications ".In the industry verified base station transmitting power with
The antenna number of base station is inversely proportional, and when channel status is undesirable, then the square root with antenna number is inversely proportional.Meanwhile channel is anti-
It is only related to the number of users of each cell to present expense, it is unrelated with antenna for base station number.Therefore in theory, it is big in following 5G networks
The number of antennas of scale aerial array will tend to be infinite, therefore plan the resource pool of these antenna, it is in optimized selection
Seem particularly necessary.Wherein several antennas are selected to carry out data transmission according to the idle condition of resource, while also should be by one
The base station equipment of all large-scale antenna arrays in region carries out resource pool.At present, this Radio Resource pond technology (bag
Include antenna, base station etc.) it is widely used.However, resource pool technical resource selection algorithm not consider plant capacity and
The requirement of power, can not make full use of the limited power load of single resource, the maximized power system capacity for balancing resource and institute
The energy efficiency needed.
Therefore, how to propose a kind of wireless power cloud scheme based on large-scale antenna array of optimization, be this area
Technical staff's urgent problem to be solved.
The content of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technology, there is provided a kind of based on large-scale antenna array
The method and system of wireless power cloud, realize wireless network power domain cloud, can make full use of the limited work(of single resource
Rate load, efficiently solves the growing contradiction between non-renewable resources scarcity in network of various businesses quantity.
To achieve the above objectives, the present invention provides a kind of method of the wireless power cloud based on large-scale antenna array,
This method comprises the following steps：
S1, found an idle energy factors Eidle, for representing to include in cell frequency the factor of dump power；And
The calculation formula of the idle energy factors of each antenna is in definition large-scale antenna array：Its
In, Pi、P′iThe maximum effective transmission power of i-th antenna and allocated power are represented in antenna resources ponds respectively；SNRiTable
Show the signal-to-noise ratio of i-th of antenna；SpectrumiRepresent the bandwidth of the shared frequency spectrum of i-th of antenna；S is i-th of antenna
Number of users；
Each antenna in S2, large-scale antenna array sends the status information of oneself to base station controller, base station control
Status information is uploaded to Cloud Server by device processed by gateway；
S3, Cloud Server, according to the calculation formula of the idle energy factors of definition, are counted according to the status information of each antenna
Calculate the idle energy factors of each antenna；And the order according to idle energy factors from large to small, pick out specified number
Antenna is added in antenna resources pond；
S4, Cloud Server are dynamically selected according to the dispatching algorithm based on idle energy factors from current antenna resource pool
Take out can occupied antenna, and broadcast the selection result；
S5, as can be after occupied antenna, which is uploaded to Cloud Server by current status information and is registered；Cloud
Server is according to being the antenna assignment power resource after registration using needs, until delivered power provides after the antenna use
Source.
Based on the above technical solutions, in step S2, the status information that each antenna is sent includes：Maximum effectively hair
Penetrate power, allocated power, signal-to-noise ratio, signal strength, spectral bandwidth, number of users.
Based on the above technical solutions, step S4 specifically includes below scheme：
The status information of oneself is passed through respective base station controller and gateway by the antenna in S41, current antenna resource pool
Cloud Server is uploaded to, and the information for can be used and choosing wheel number, not receiving notice number is carried in the status information；
S42, Cloud Server judge can be used for the antenna whenever the status information for receiving antenna upload according to status information
Choose whether wheel number is the first round or does not receive whether notice number is equal to default maximum times, if so, being transferred to step
S43；Otherwise, it is transferred to step S44；
S43, determine whether the Antenna selection for can occupied day using idle energy factors as unique factor of judgment
Line；And the usable selection wheel number of the antenna is transferred to step S45 from increasing 1；
S44, using idle energy factors, signal strength, spectral bandwidth, number of users as factor of judgment come determine whether by
The Antenna selection is can occupied antenna；And the usable selection wheel number of the antenna is transferred to step S45 from increasing 1；
Can be after occupied antenna if S45, the antenna are chosen for, Cloud Server is by gateway to the base station where the antenna
Control message is sent, specifying the antenna to become can occupied antenna；Meanwhile the state of the antenna is believed in the base station where the antenna
Breath is broadcast to other antennas in large-scale antenna array in the form of noticing；, will be certainly if other described antennas do not receive notice
Oneself does not receive notice number from increasing 1.
Based on the above technical solutions, in step S43, determined using idle energy factors as unique factor of judgment
Whether by the Antenna selection for can occupied antenna, specifically include following operation：By the idle energy factors of the antenna and currently
The idle energy factors of the not selected antenna of remaining in antenna resources pond are compared, if the idle energy factors of the antenna are
Maximum, then being by the Antenna selection can occupied antenna；Otherwise, not being by the Antenna selection can occupied antenna.
Based on the above technical solutions, in step S44, by idle energy factors, signal strength, spectral bandwidth, use
Amount as factor of judgment come determine whether by the Antenna selection for can occupied antenna, specifically include following operation：
1) threshold value T (n) is calculated using improved annealing algorithm, which is：
Wherein, P be antenna become can occupied antenna percentage；R takes turns number for current choose；G is to be taken turns in nearest 1/p
In it is elected can occupied antenna antenna set；N represents n-th of antenna；E’idleRepresent the idle energy of n-th of antenna because
Son；
2) according to signal strength, spectral bandwidth, the random random number generated between one 0~1 of ranking operation of number of users；
The random number of generation is compared with threshold value T (n), if less than the threshold value T (n), then being by the Antenna selection can occupied day
Line；Otherwise, not being by the Antenna selection can occupied antenna.
Based on the above technical solutions, this method further includes the dynamic renewal operation of antenna resources pond：1), it is not added to
After antenna in antenna resources pond receives notice, according to the state information acquisition carried in notice, be taken as can be occupied to currently selected
With the signal strength of antenna；If the signal strength for the antenna not being added in antenna resources pond is more than the signal strength got,
Then by the base station controller and gateway where it, sent to Cloud Server and add request, and it is carried in addition request
The status information of itself and idle energy factors；2), Cloud Server judges to send according to the idle energy factors added in asking
The empty accounting of the antenna of request is added whether within default Tidle threshold, if so, the antenna then is added to antenna resources
Chi Zhong.
Based on the above technical solutions, if in current antenna resource pool can occupied antenna accounting be less than 50%,
Then current antenna resource pool no longer receives the addition of other antennas.
Based on the above technical solutions, in step S3, the specified number is a preset value, the preset value according to
The actual performance of Cloud Server is configured.
The present invention also provides a kind of system of the wireless power cloud based on large-scale antenna array using the above method,
The system includes Cloud Server, large-scale antenna array, some base station controllers and some gateways；In large-scale antenna array
Each antenna corresponds to a base station controller, and each base station controller corresponds to a gateway；
Each antenna in the large-scale antenna array is sent by corresponding base station controller, gateway to Cloud Server
Status information；The Cloud Server is used for：Idle energy factors are founded, and define the sky of each antenna in large-scale antenna array
The calculation formula of not busy energy factors；After each antenna in large-scale antenna array uploads status information, according to each antenna
Status information calculate the idle energy factors of each antenna, pick out finger according to the order of idle energy factors from large to small
The antenna for determining number is added in antenna resources pond；And according to the dispatching algorithm based on idle energy factors, from antenna resources pond
In dynamically select can occupied antenna；Selecting can be after occupied antenna, according to using the antenna assignment work(that needs to select
Rate resource, until delivered power resource after the antenna use.
Based on the above technical solutions, the specified number is a preset value, and the preset value is according to Cloud Server
Actual performance be configured.
The beneficial effects of the present invention are：
(1) present invention is directed to power resource non-renewable in cordless communication network and proposes what a resource cloud was shared
Scheme.Pass through one of design generally applicable idle energy factors Eidle, by free time energy factors EidleWith cloud algorithm phase
With reference to an antenna selection scheduling algorithm based on idle energy factors is proposed, the remaining work(of the network hardware can be fully shared
Rate resource, so as to make full use of the limited power load of single resource, efficiently solves that various businesses quantity is growing and net
Contradiction in network between non-renewable resources scarcity.Wireless Communication Equipment utilizes above-mentioned cloud technology, can give full play to 5G nets
Wide covering, big link and the characteristic of low cost of network, while the interference to mainstream Wireless Communication Equipment is maximumlly reduced, efficiently
Rate utilizes limited and rare Internet resources, and solid foundation has been established for future 5G network Developments.
(2) wireless power cloud method and system of the invention has very strong flexibility and adaptability, is applicable not only to
Extensive antenna equipment, can equally be well applied to other Wireless Communication Equipment, applied widely.
Brief description of the drawings
Fig. 1 is the flow chart of the method for the wireless power cloud based on large-scale antenna array in the embodiment of the present invention；
Fig. 2 is the particular flow sheet of step S4 in the embodiment of the present invention；
Fig. 3 is the structural representation of the system of the wireless power cloud based on large-scale antenna array in the embodiment of the present invention
Figure.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of side of the wireless power cloud based on large-scale antenna array
Method, this method comprise the following steps：
Step S1, an idle energy factors E is foundedidle, for represent in cell frequency comprising dump power because
Element；As idle energy factors EidleWhen being applied in large-scale antenna array, each antenna in large-scale antenna array is defined
The calculation formula of idle energy factors is：Wherein, Pi、P′iThe is represented in antenna resources ponds respectively
The maximum effective transmission power and allocated power, both differences of a (i is positive integer) antennas of i are the remaining work(of the antenna
Rate；SNRiRepresent the signal-to-noise ratio of the antenna；SpectrumiRepresent the bandwidth of frequency spectrum shared by the antenna；S is the user of the antenna
Number；And the unit of idle energy factors is mw/Hz.
Step S2, each antenna in large-scale antenna array sends the status information of oneself to base station controller, base
Status information is uploaded to Cloud Server by station control by gateway.
During practical operation, the status information that each antenna is sent includes：Maximum effective transmission power, allocated power,
The information such as signal-to-noise ratio, signal strength, spectral bandwidth, number of users.
Step S3, Cloud Server is according to the status information of each antenna, according to the idle energy factors defined in step S1
Calculation formula, calculate the idle energy factors E of each antennaidle；And according to idle energy factors EidleFrom large to small suitable
Sequence, the antenna for picking out specified number are added in antenna resources pond.It is understood that the specified number is default for one
Value, can rationally be set according to the actual performance of Cloud Server.
Step S4, Cloud Server is according to the dispatching algorithm based on idle energy factors, the dynamic from current antenna resource pool
Ground select can occupied antenna, and broadcast the selection result.
During practical operation, step S4 specifically includes below scheme：
Step S41, the antenna in current antenna resource pool by the status information of oneself by respective base station controller and
Gateway is uploaded to Cloud Server, further includes can be used in the status information that antenna uploads and chooses wheel number, do not receive notice number (such as
NO_ROUND information).
Step S42, Cloud Server judges the antenna after the status information of antenna upload is received according to status information
It can be used and choose whether wheel number is the first round or does not receive whether notice number (such as NO_ROUND) is equal to default maximum time
Number (such as MAX_ROUND), if so, being transferred to step S43；Otherwise, it is transferred to step S44.
Step S43, determine whether using idle energy factors as unique factor of judgment by the Antenna selection for can be occupied
Use antenna；And the usable selection wheel number of the antenna is transferred to step S45 from increasing 1.Specifically, its determination process is：Should
The idle energy factors of antenna compared with the idle energy factors of the not selected antenna of remaining in current antenna resource pool,
If the idle energy factors of the antenna are maximum, being by the Antenna selection can occupied antenna；Otherwise, not by the Antenna selection
For can occupied antenna.
Step S44, idle energy factors, signal strength, spectral bandwidth, number of users are determined to be as factor of judgment
It is no by the Antenna selection for can occupied antenna；And the usable selection wheel number of the antenna is transferred to step S45 from increasing 1.Specifically
For, its determination process is：
1) threshold value T (n) is calculated using improved annealing algorithm, which is：
Wherein, P be antenna become can the percentage of occupied antenna (for example, there is 100 antennas in antenna resources pond, P is
10%, then showing to have in antenna resources pond 10 antennas can become can occupied antenna)；R takes turns number for current choose；G is most
In near 1/p wheels it is elected can occupied antenna antenna set；N is the numbering of antenna, represents n-th of antenna；E’idleRepresent
The idle energy factors of n-th of antenna；
2) according to signal strength, spectral bandwidth, the random random number generated between one 0~1 of ranking operation of number of users；
The random number is compared with threshold value T (n), if less than the threshold value T (n), then being by the Antenna selection can occupied antenna；It is no
Then, not being by the Antenna selection can occupied antenna.
If step S45, be chosen for can be after occupied antenna for the antenna, Cloud Server passes through where gateway to the antenna
Base station sends control message, and specifying the antenna to become can occupied antenna；Meanwhile the base station where the antenna is by the shape of the antenna
Other antennas that state information is broadcast in the form of noticing in large-scale antenna array (include not in current antenna resource pool
Antenna)；If other described antennas do not receive notice, oneself is not received into notice number (such as NO_ROUND) from increasing 1.
Step S5, as can be after occupied antenna, which be uploaded to current status information in the base where the antenna
Stand, and current status information is uploaded to by Cloud Server by the base station and is registered；Cloud Server according to using need be
Antenna assignment power resource (i.e. using the antenna) after registration, handles the mass data of the antenna equipment, until the antenna makes
The delivered power resource after.
Further, in order to improve the scalability in antenna resources pond and pardon so that antenna resources scheduling rationally has
Effect, in one embodiment, this method further include the dynamic renewal operation of antenna resources pond：
1) after, the antenna not being added in antenna resources pond receives notice, according to the state information acquisition carried in notice
To it is currently selected be taken as can occupied antenna signal strength；If the signal strength for the antenna not being added in antenna resources pond is big
In the signal strength got, then by the base station controller and gateway where it, sent to Cloud Server and add request, and
Status information (including maximum effective transmission power, allocated power, signal-to-noise ratio, the letter of its own are carried in addition request
The information such as number intensity, spectral bandwidth, number of users) and idle energy factors.
2), according to the idle energy factors added in asking, the sky for judging to send the antenna for adding request accounts for Cloud Server
Whether within default Tidle threshold (it is less than or equal to idle threshold than (the sky accounting is calculated by idle energy factors)
Value), if so, then recording the numbering of the antenna, and add it in antenna resources pond.It is understood that the Tidle threshold
Self-defined setting can be carried out according to being actually needed.
Further, on the basis of the dynamic renewal operation of above-mentioned antenna resources pond, in order to effectively to adding resource
The antenna amount in pond is rationally controlled so that antenna resources scheduling is more rationally effective.Above-mentioned antenna resources pond dynamic updates
Operation further includes following process flow：If the accounting of occupied antenna number is less than 50% in current antenna resource pool, work as the day before yesterday
Line resource pool no longer receives the addition of other antennas.
The embodiment of the present invention is by the way of a kind of connection of optical fiber is changed into different colours in real time according to different faults type, soon
Light trackside failure is intuitively directly presented on user at the moment by speed using patterned way.Open and tie up transmission network is daily
During shield, light trackside occurs wrong even or when physical layer, logical layer failure, quicklook can pass through on topological diagram
The color change of optical fiber connection is presented directly to user, quickly finds and position failure easy to user.
It is shown in Figure 3, the embodiment of the present invention also provide it is a kind of using the above method based on large-scale antenna array
The system of wireless power cloud, the system include Cloud Server, large-scale antenna array, some base station controllers and some nets
Close.
Wherein, each antenna in large-scale antenna array corresponds to a base station controller, and each base station controller corresponds to
One gateway；Each antenna in the large-scale antenna array is sent out by corresponding base station controller, gateway to Cloud Server
Send status information；The Cloud Server is used for：Idle energy factors are founded, and define each antenna in large-scale antenna array
The calculation formula of idle energy factors；After each antenna in large-scale antenna array uploads status information, according to each day
The status information of line calculates the idle energy factors of each antenna, is picked out according to the order of idle energy factors from large to small
The antenna of number is specified to be added in antenna resources pond；And according to the dispatching algorithm based on idle energy factors, from antenna resources
Dynamically being selected in pond can occupied antenna；Selecting can be after occupied antenna, according to using the antenna assignment that needs to select
Power resource, until delivered power resource after the antenna use.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.
The content not being described in detail in this specification belongs to the prior art known to professional and technical personnel in the field.
Claims (10)
- A kind of 1. method of the wireless power cloud based on large-scale antenna array, it is characterised in that this method includes following step Suddenly：S1, found an idle energy factors Eidle, for representing to include in cell frequency the factor of dump power；And define The calculation formula of the idle energy factors of each antenna is in large-scale antenna array：Wherein, Pi、P′iThe maximum effective transmission power of i-th antenna and allocated power are represented in antenna resources ponds respectively；SNRiRepresent the The signal-to-noise ratio of i antenna；SpectrumiRepresent the bandwidth of the shared frequency spectrum of i-th of antenna；S is the user of i-th of antenna Number；Each antenna in S2, large-scale antenna array sends the status information of oneself to base station controller, base station controller Status information is uploaded to by Cloud Server by gateway；S3, Cloud Server, according to the calculation formula of the idle energy factors of definition, are calculated according to the status information of each antenna The idle energy factors of each antenna；And the order according to idle energy factors from large to small, pick out the antenna of specified number It is added in antenna resources pond；S4, Cloud Server are dynamically selected according to the dispatching algorithm based on idle energy factors from current antenna resource pool Can occupied antenna, and broadcast the selection result；S5, as can be after occupied antenna, which is uploaded to Cloud Server by current status information and is registered；Cloud service Device is according to being the antenna assignment power resource after registration using needs, until delivered power resource after the antenna use.
- 2. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 1, it is characterised in that：Step In S2, the status information that each antenna is sent includes：Maximum effective transmission power, allocated power, signal-to-noise ratio, signal are strong Degree, spectral bandwidth, number of users.
- 3. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 2, it is characterised in that step S4 specifically includes below scheme：Antenna in S41, current antenna resource pool uploads the status information of oneself by respective base station controller and gateway To Cloud Server, and the information for can be used and choosing wheel number, not receiving notice number is carried in the status information；S42, Cloud Server judge the usable selection of the antenna according to status information whenever the status information for receiving antenna upload Whether wheel number is the first round or does not receive whether notice number is equal to default maximum times, if so, being transferred to step S43；It is no Then, it is transferred to step S44；S43, determine whether the Antenna selection for can occupied antenna using idle energy factors as unique factor of judgment；And By the usable selection wheel number of the antenna from increasing 1, step S45 is transferred to；S44, determine whether idle energy factors, signal strength, spectral bandwidth, number of users by the day as factor of judgment Line selection is taken as can occupied antenna；And the usable selection wheel number of the antenna is transferred to step S45 from increasing 1；Can be after occupied antenna if S45, the antenna are chosen for, Cloud Server is sent by gateway to the base station where the antenna Control message, specifying the antenna to become can occupied antenna；Meanwhile the base station where the antenna by the status information of the antenna with Notice form is broadcast to other antennas in large-scale antenna array；If other described antennas do not receive notice, by oneself Notice number is not received from increasing 1.
- 4. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 3, it is characterised in that step In S43, using idle energy factors as unique factor of judgment come determine whether by the Antenna selection for can occupied antenna, specifically Including following operation：By the idle energy factors of remaining not selected antenna in the idle energy factors of the antenna and current antenna resource pool It is compared, if the idle energy factors of the antenna are maximum, being by the Antenna selection can occupied antenna；Otherwise, will not The Antenna selection is can occupied antenna.
- 5. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 3, it is characterised in that step In S44, idle energy factors, signal strength, spectral bandwidth, number of users are determined whether the antenna as factor of judgment Be chosen for can occupied antenna, specifically include following operation：1) threshold value T (n) is calculated using improved annealing algorithm, which is：<mrow> <mi>T</mi> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <mfrac> <mi>P</mi> <mrow> <mn>1</mn> <mo>-</mo> <mi>P</mi> <mo>*</mo> <mrow> <mo>(</mo> <mi>r</mi> <mi> </mi> <mi>mod</mi> <mfrac> <mn>1</mn> <mi>P</mi> </mfrac> <mo>)</mo> </mrow> </mrow> </mfrac> <mo>*</mo> <mi>n</mi> <mo>*</mo> <msubsup> <mi>E</mi> <mrow> <mi>i</mi> <mi>d</mi> <mi>l</mi> <mi>e</mi> </mrow> <mo>&prime;</mo> </msubsup> </mrow> </mtd> <mtd> <mtable> <mtr> <mtd> <mrow> <mi>i</mi> <mi>f</mi> </mrow> </mtd> <mtd> <mrow> <mi>n</mi> <mo>&Element;</mo> <mi>G</mi> </mrow> </mtd> </mtr> </mtable> </mtd> </mtr> <mtr> <mtd> <mrow> <mn>0</mn> <mo>,</mo> </mrow> </mtd> <mtd> <mrow> <mi>o</mi> <mi>t</mi> <mi>h</mi> <mi>e</mi> <mi>r</mi> <mi>w</mi> <mi>i</mi> <mi>s</mi> <mi>e</mi> </mrow> </mtd> </mtr> </mtable> </mfenced> </mrow>Wherein, P be antenna become can occupied antenna percentage；R takes turns number for current choose；G be in nearest 1/p wheels not It is elected can occupied antenna antenna set；N represents n-th of antenna；E’idleRepresent the idle energy factors of n-th of antenna；2) according to signal strength, spectral bandwidth, the random random number generated between one 0~1 of ranking operation of number of users；Will be raw Into random number compared with threshold value T (n), if less than the threshold value T (n), then by the Antenna selection for can occupied antenna；It is no Then, not being by the Antenna selection can occupied antenna.
- 6. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 3, it is characterised in that the party Method further includes the dynamic renewal operation of antenna resources pond：1) after, the antenna not being added in antenna resources pond receives notice, according to the state information acquisition carried in notice to work as Before be chosen for can occupied antenna signal strength；Obtained if the signal strength for the antenna not being added in antenna resources pond is more than The signal strength got, then by the base station controller and gateway where it, send to Cloud Server and add request, and add at this Enter to carry the status information of its own and idle energy factors in request；2), according to the idle energy factors added in asking, the empty accounting for judging to send the antenna for adding request is Cloud Server It is no within default Tidle threshold, if so, then the antenna is added in antenna resources pond.
- 7. the method for the wireless power cloud based on large-scale antenna array as claimed in claim 6, it is characterised in that：If work as In preceding antenna resource pool can occupied antenna accounting be less than 50%, then current antenna resource pool no longer receive other antennas plus Enter.
- 8. the method for the wireless power cloud based on large-scale antenna array as any one of claim 1 to 7, it is special Sign is：In step S3, the specified number is a preset value, which is set according to the actual performance of Cloud Server Put.
- A kind of 9. wireless power cloud based on large-scale antenna array using method any one of claim 1 to 7 System, it is characterised in that：The system includes Cloud Server, large-scale antenna array, some base station controllers and some gateways； Each antenna in large-scale antenna array corresponds to a base station controller, and each base station controller corresponds to a gateway；Each antenna in the large-scale antenna array sends state by corresponding base station controller, gateway to Cloud Server Information；The Cloud Server is used for：Idle energy factors are founded, and define the idle energy of each antenna in large-scale antenna array Measure the calculation formula of the factor；After each antenna in large-scale antenna array uploads status information, according to the shape of each antenna State information calculates the idle energy factors of each antenna, and specified is picked out according to the order of idle energy factors from large to small Several antennas is added in antenna resources pond；And according to the dispatching algorithm based on idle energy factors, moved from antenna resources pond Selecting to state can occupied antenna；Select to need to provide for the antenna assignment power selected after occupied antenna according to using Source, until delivered power resource after the antenna use.
- 10. the system of the wireless power cloud based on large-scale antenna array as claimed in claim 9, it is characterised in that：Institute It is a preset value to state specified number, which is configured according to the actual performance of Cloud Server.
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