CN110460998A - A kind of dynamic spectrum sharing method and device - Google Patents
A kind of dynamic spectrum sharing method and device Download PDFInfo
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- CN110460998A CN110460998A CN201810435715.8A CN201810435715A CN110460998A CN 110460998 A CN110460998 A CN 110460998A CN 201810435715 A CN201810435715 A CN 201810435715A CN 110460998 A CN110460998 A CN 110460998A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
Abstract
The embodiment of the present invention provides a kind of dynamic spectrum sharing method and device.The method includes receiving the spectrum allocation request of base station to be allocated；Dividing frequency is sent to the base station to be allocated according to the current frequency state of all associated base stations in the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table；Wherein, the isolation frequency distribution table includes the associated base stations that at least one belongs to not homologous ray with the base station to be allocated, and isolation frequency corresponding with the associated base stations, and the associated base stations are less than default isolation radius at a distance from base station to be allocated, the embodiment of the present invention passes through the frequency of the isolation frequency distribution table corresponding with base station to be allocated prestored and current each associated base stations, obtain the dividing frequency of the base station to be allocated, so as to must faster instruct dynamic frequency selection and the optimization carrier wave selection of sensory perceptual system, further decrease dynamic spectrum it is shared in interference, increase the utilization rate of frequency spectrum.
Description
Technical field
The present embodiments relate to wireless communication technology field more particularly to a kind of dynamic spectrum sharing method and devices.
Background technique
With the broadband development of wireless traffic, the extensive use of mobile Internet, Internet of Things in vertical industry, Duo Zhongduo
Demand sharp increase of the radio traffic of sample to radio spectrum resources, in the case that frequency spectrum use develops to higher frequency section, still
There are huge notches.Static, fixed frequency point allocation and sharing method, frequency spectrum service efficiency is not high, and therefore, it is necessary to borrow
The mode of power-assist state frequency spectrum share, the service efficiency of Lai Tigao frequency spectrum resource.
Under dynamic spectrum shared mechanism, under spectrum sharing mechanisms, base station can be needed based on interference altogether with the judgement of frequency point
Analysis is deposited to realize, although due to general base station or the position of website in deployment just it has been determined that wireless communication system exists
The attenuation outside a channel of filter is sent and received, but neighboring trace, spuious and obstruction interference influence can not be completely removed.In view of being
Between system under the scene of incomplete co-sited, due to near-far interference will lead on certain positions between two systems adjacent frequency interference effect also compared with
Greatly.
In the prior art and scheme, it is to rely on STATIC SIMULATION result or engineering experience, is unsuitable for dynamic spectrum and shares field
Scape keeps the utilization rate of frequency spectrum too low.
Summary of the invention
The embodiment of the present invention provides a kind of dynamic spectrum sharing method and device, to solve in the prior art dependent on quiet
State simulation result or engineering experience are unsuitable for dynamic spectrum and share scene, keep the utilization rate of frequency spectrum too low.
In a first aspect, the embodiment of the invention provides a kind of dynamic spectrum sharing methods, comprising:
Receive the spectrum allocation request of base station to be allocated；
Own according to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table
The current frequency state of associated base stations sends dividing frequency to the base station to be allocated；Wherein, the isolation frequency distribution table packet
Include at least one associated base stations for belonging to not homologous ray with the base station to be allocated, and it is corresponding with the associated base stations every
Off-frequency rate, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
Second aspect, the embodiment of the invention provides a kind of devices shared for dynamic spectrum, comprising:
Receiving module, for receiving the spectrum allocation request of base station to be allocated；
Searching module, for basis and the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency
The current frequency state of all associated base stations sends dividing frequency to the base station to be allocated in distribution table；Wherein, the isolation
Frequency distribution table includes the associated base stations that at least one belongs to not homologous ray with the base station to be allocated, and to it is described related
The corresponding isolation frequency in base station, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
The third aspect, the embodiment of the invention also provides a kind of electronic equipment, comprising:
Processor, memory, communication interface and bus；Wherein,
The processor, memory, communication interface complete mutual communication by the bus；
The communication interface is for the information transmission between the communication equipment of the electronic equipment；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out following method:
Receive the spectrum allocation request of base station to be allocated；
Own according to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table
The current frequency state of associated base stations sends dividing frequency to the base station to be allocated；Wherein, the isolation frequency distribution table packet
Include at least one associated base stations for belonging to not homologous ray with the base station to be allocated, and it is corresponding with the associated base stations every
Off-frequency rate, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
Fourth aspect, the embodiment of the invention also provides a kind of storage mediums, are stored thereon with computer program, the calculating
Machine program realizes following method when being executed by processor:
Receive the spectrum allocation request of base station to be allocated；
Own according to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table
The current frequency state of associated base stations sends dividing frequency to the base station to be allocated；Wherein, the isolation frequency distribution table packet
Include at least one associated base stations for belonging to not homologous ray with the base station to be allocated, and it is corresponding with the associated base stations every
Off-frequency rate, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
Dynamic spectrum sharing method provided in an embodiment of the present invention and device, it is corresponding with base station to be allocated by what is prestored
The frequency of isolation frequency distribution table and current each associated base stations, obtains the dividing frequency of the base station to be allocated, so as to more
Fast the dynamic frequency selection for instructing sensory perceptual system and optimization carrier wave selection, further decrease dynamic spectrum it is shared in interference,
Increase the utilization rate of frequency spectrum.
Detailed description of the invention
Fig. 1 is the dynamic spectrum sharing method flow chart of the embodiment of the present invention；
Fig. 2 is another dynamic spectrum sharing method flow chart of the embodiment of the present invention；
Fig. 3 is the apparatus structure schematic diagram of the embodiment of the present invention shared for dynamic spectrum；
Fig. 4 is another apparatus structure schematic diagram shared for dynamic spectrum of the embodiment of the present invention；
Fig. 5 is the electronic devices structure schematic diagram of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the dynamic spectrum sharing method flow chart of the embodiment of the present invention, as shown in Figure 1, which comprises
Step S01, the spectrum allocation request of base station to be allocated is received.
The embodiment of the present invention is used for the frequency spectrum share between multiple systems, and the multisystem that can be used for various frameworks shares network,
Such as the radio private network of three-level structure, including geographic information database, location resource allocation center and base station.Wherein, described
Geographic information database be used for multiple systems carry out integrated management, including at least have Industry system management module, authorization frequency point/
Shared spectrum management module, interference analysis module, frequency spectrum distribution module, accounting module, frequency spectrum use statistical analysis module sum number
According to synchronization module；For coordinating in respective system, in region, each base station frequency use, geography are believed at the location resource allocation center
Cease database and base station information interaction etc.；The base station is then used for spectral frequencies application, perception, complaint, debugging and release etc..
In order to express easily, in the following embodiments, it is all illustrated by taking the radio private network of the three-level structure as an example.
When base stations to be allocated newly accessed with the presence of system or the more frequency spectrum resources of needs, the base to be allocated
Standing-meeting sends corresponding spectrum allocation request to geographic information database.
Step S02, it is distributed according to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency
The current frequency state of all associated base stations sends dividing frequency to the base station to be allocated in table；Wherein, the isolation frequency
Distribution table includes the associated base stations that at least one belongs to not homologous ray with the base station to be allocated, and with the associated base stations
Corresponding isolation frequency, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
The geographic information database is by extracting from database and to prestore to spectrum allocation request parsing being received
Isolation frequency distribution table corresponding with the base station to be allocated, wherein the distribution table includes at least one and the base station to be allocated
Belong to not homologous ray associated base stations and the corresponding isolation frequency of each associated base stations.If by where the base station to be allocated
System be known as this system, and other systems are known as different system, then the associated base stations belong to different system, and associated base stations with
The distance of base station to be allocated meets preset isolation radius, and the isolation radius can be preset constant, be also possible to
The value being set separately according to the actual needs or according to the correlation between not homologous ray.Such as table 1 is as follows, is under system A
Base station A1 isolation frequency distribution table:
| Isolation frequency | Site list |
| f1 | S3 |
| f2 | S4, S5, S6 |
| … | … |
| fn | Sm, Sm+1 ... ... |
Wherein, base station S3, S4, S5, the S6 ... for including in site list are the associated base stations of the base station to be allocated；With
The isolation frequency of associated base stations colleague is then isolation frequency corresponding with each associated base stations, i.e., isolation frequency corresponding with the S3
Rate is f1, and isolation frequency corresponding with described S4, S5, S6 is that the value of each isolation frequency of f2 ... ... can be according to actual need
It is set, can also be according to preset intersubband every carrying out incremental mode, such as intersubband is divided into Δ f, then f1=Δ
F, f2=2* Δ f ... ..., fn=n* Δ f.
If in order in the isolation frequency distribution table, must more comprehensively show the base station to be allocated with it is all different
The relationship of the base station of system can also will be greater than the different system base-station of the isolation radius in table at a distance from base station to be allocated
Also it counts into the isolation frequency distribution table, and isolation frequency corresponding to these base stations is f0=0.
Further according to the frequency state of current each associated base stations, make the dividing frequency for distributing to base station to be allocated meet with it is every
The frequency phase-difference of the requirement of the isolation frequency of a associated base stations, i.e., current each associated base stations is not less than corresponding isolation frequency,
Such as dividing frequency is F, and the frequency of S3 is F3, and the frequency of S4 is F4, then | F-F3 | >=f1, | F-F4 | >=f2.
If not finding the dividing frequency for fully meeting isolation frequency requirement, can look for according to the actual needs
Influence out it is the smallest can dividing frequency as the base station to be allocated dividing frequency or veto this secondary frequencies distribution request with etc.
To the subsequent dividing frequency discharged by other base stations.
Preserve the isolation frequency distribution table of each base station under all systems in network in the geographical data bank, and can be with
It is updated in real time according to the variation for sending and receiving radio-frequency performance index of the foundation of new base station and each base station, thus
Enable each base station as far as possible the not interference by different system associated base stations.
The embodiment of the present invention passes through the isolation frequency distribution table corresponding to base station to be allocated that prestores and currently each related
The frequency of base station obtains the dividing frequency of the base station to be allocated, so as to must faster instruct the dynamic frequency of sensory perceptual system to select
Select and optimize carrier wave selection, further decrease dynamic spectrum it is shared in interference, increase the utilization rate of frequency spectrum.
Fig. 2 is another dynamic spectrum sharing method flow chart of the embodiment of the present invention, as shown in Fig. 2, the step S01
Before, the method also includes:
Step S05, the performance parameter of each equipment in all systems in network is obtained；Wherein, all systems include wait divide
With this system where base station and the different system where at least one described associated base stations.
In order to obtain the isolation frequency distribution table of each base station, all systems in the geographic information database meeting collection network
The performance parameter of each equipment under system, the system comprises this system and all different systems, the equipment is base station or end
The equipment such as end, and the performance parameter of the equipment includes that the equipment such as base station and the terminal of each system send and receive radio frequency
Can index, specifically include that working band range, system bandwidth, subband bandwidth, subcarrier spacing, transmission power, feeder loss,
Receiving sensitivity, antenna gain, receiver noise system, transmitter maximum power, adjacentchannel selectivity, neighboring trace inhibit than, it is spuious
Radiation feature etc., and located position and the covering radius of each base station.
Step S06, according to the performance parameter of each equipment in this system and all different systems, described this system is respectively obtained
With the isolation of system look-up table of each different systems.
According to the performance parameter of each equipment in all systems, transmission performance between available all devices, Jin Erke
It among these also include the system of this system Yu all different systems to obtain the isolation of system look-up table between any two system
The isolation of system look-up table of look-up table and two different systems is isolated.Such as table 2 is as follows, is this system A and different system
The isolation of system look-up table of B:
| Isolation frequency | Guard space |
| f0 | d0 |
| f1 | d1 |
| f2 | d2 |
| … | … |
Wherein, guard space is arbitrary equipment and arbitrary equipment phase under different system B under this system A under different isolation frequencies
Do not generate the minimum range of interference mutually, only when two equipment the distance between be not less than guard space when, just think that this is
Between system A and different system B mutual interference will not be generated during dynamic spectrum is shared.
Step S07, according to all isolation of system look-up tables corresponding with described this system and the base station to be allocated
Geography information obtains the isolation frequency distribution table of the base station to be allocated.
According to the geography information of each base station under the isolation of system look-up table between system, and corresponding two systems, pass through
The base station distance for calculating two base stations for adhering to not homologous ray separately can find corresponding two from the isolation of system look-up table
A base station needs the isolation frequency met, and two base stations just associated base stations each other.For example, the base station A1 of this system A and different
The distance between base station S1, S2, S3, S4 of system B are respectively D1, D2, D3, D4, if finding D1, D2 >=d0 from upper table,
D3 is in the section [d1, d0], and D4 is in the section of [d1, d2], then the isolation frequency of available base station A1 and S1 and S2 is f0,
Isolation frequency with S3 is f1, and the isolation frequency with S4 is f2.
In to all isolation of system look-up tables there are two base station relationship carry out as described above analyze after, so that it may
To obtain the isolation frequency of each base station and corresponding all associated base stations in network, each base station can be obtained by after combination
Isolation frequency distribution table.For example, by A1 in conjunction with the isolation frequency of all corresponding associated base stations, so that it may obtain table 1 as above
Shown in isolation frequency distribution table.
The embodiment of the present invention passes through the performance parameter for obtaining each equipment in all systems in network, to obtain all systems
Then isolation of system look-up table between system obtains the isolation frequency distribution table of the base station according to the position of each base station, further according to
The frequency of the corresponding isolation frequency distribution table in base station to be allocated and current each associated base stations, obtains the distribution of the base station to be allocated
Frequency further decreases dynamic frequency so as to must faster instruct dynamic frequency selection and the optimization carrier wave selection of sensory perceptual system
Interference during spectrum is shared, increases the utilization rate of frequency spectrum.
Based on the above embodiment, further, the step S06, specifically:
According to the performance parameter of all devices under described this system and any different system, described this system and different system are obtained
The path isolated relation table of all interference paths between system；Wherein, the receiving end of the interference path and transmitting terminal are respectively described
The second equipment under the first equipment and the different system under this system；
The isolation of system look-up table of described this system and different systems is obtained according to all path isolated relation tables.
It, first will be according to all devices in two systems during calculating the isolation of system look-up table between two systems
Performance parameter finds out all interference path between two systems；Wherein, the interference path is distinct device in two systems
Between transmission path, such as this system A and different system B interference path be from the first equipment under this system A be transmitting terminal
The second equipment under to different system B is receiving end, or from second equipment be transmitting terminal to first equipment be reception
The transmission path at end.Such as system A includes base station A1, terminal E1, system B include base station S1 and terminal R1, then two are
Interference path under system shares 8, the interference road of the interference path I1 of respectively base station A1 to base station S1, base station S1 to base station A1
The interference path I4 of diameter I2, terminal E1 to terminal R1 interference path I3, terminal R1 to terminal E1, interference of the base station A1 to terminal R1
Path I5, terminal R1 the interference path I6 to base station A1, the interference path I7 and terminal E1 to base station S1 of base station S1 to terminal E1
Interference path I8.Certainly, whether synchronized according between system, in actual deployment scene, selecting really generate interference
Interference path.For example, if being able to confirm that between this system A and different system B is synchronization system, it can be assumed that interference path
I1, I2, I3 and I4 will not generate interference, it is only necessary to consider interference path I5, I6, I7 and I8.
It is isolated by the path of the available interference path of parsing of the performance parameter to every interference path both ends and is closed
It is table.
Further, the path isolated relation table of the interference path to following formula by parsing to obtain:
MCLf≥PI(f)-I (f),
Wherein, the f is isolation frequency, the MCLfWhen for isolation frequency being f, first equipment and the second equipment room
Insulated degree requirement, the I (f) be the acceptable jamming power in the receiving end, the PI(f) it is being isolated for the receiving end
The power that frequency receives when being f from the transmitting terminal.
For geographic information database according to the location of interference path terminal device, scene and working frequency range, selection is suitable
Propagation model, then interference path is parsed with following formula:
MCLf≥PI(f)-I (f),
The wherein MCLfWhen for isolation frequency being f, the insulated degree requirement of the transmitting terminal of the interference path to receiving end；
I (f) is the acceptable jamming power in the receiving end, and it is preset which can be receiving end, can also pass through reception
The performance parameter at end obtains；The PI(f) function received when isolation frequency is f from the transmitting terminal for the receiving end
Rate specifically can send the performance parameters such as power according to the propagation model of selection and the maximum of transmitting terminal and obtain.
Wherein, when isolation frequency is 0, PI(f)=Pt(f), wherein the PtIt (f) is by transmitting terminal with interior transmitting
The reception power that power obtains；
When isolation frequency is greater than 0,The wherein PACIFor side channel
Interference, the PSEFor stray radiation interference, the PIMFor Intermodulation Interference.
Isolation distance is converted to by calculating the insulated degree requirement under different isolation frequency f, then by insulated degree requirement, so that it may
To obtain the isolation frequency under the interference path-isolation distance curve, and then obtain path isolated relation table.Such as following table indicates
The path isolated relation table of each interference path under this system A to different system B:
WhereinWhen for isolation frequency being f0, the isolation distance of interference path Ii.
After the path isolated relation table of all interference paths is merged, between available this system A and different system B is
System isolation look-up table, needs to consider coverage radius of cell when merging, i.e., sets terminal there are when terminal in interference path
It is set in cell edge, then the isolation distance of the interference path need to add corresponding coverage radius of cell R, be carried out by following formula
Merge:
Wherein, RaAnd RbThe coverage radius of cell of cell where respectively terminal E1 and R1.I.e. under identical isolation frequency
Compare the isolation distance of each interference path, and is maximized as the guard space between system.Finally obtain table 2 as described above
Isolation of system look-up table.
The embodiment of the present invention passes through the path isolated relation table of each equipment pair between calculating any two system, after remerging
The isolation of system look-up table between system is obtained, the isolation frequency distribution table of all base stations is then obtained, further according to isolation frequency
The frequency of rate distribution table and current each associated base stations, obtains the dividing frequency of base station to be allocated, so as to must faster instruct
The dynamic frequency selection of sensory perceptual system and optimization carrier wave selection, further decrease dynamic spectrum it is shared in interference, increase frequency spectrum
Utilization rate.
Based on the above embodiment, further, the step S07, specifically:
It is obtained described radius being isolated according to described this system and the isolation of system look-up table of different systems；
According to the geography information of base station to be allocated, obtain in the second equipment all under the different system in isolation radius
Associated base stations of the base station as the base station to be allocated；
According to the geography information of corresponding with the different system isolation of system look-up table and each associated base stations, obtain each
The corresponding isolation frequency of associated base stations, thus composition isolation frequency distribution sublist corresponding with the different system；
Each different system is corresponded into the isolation frequency distribution table that isolation frequency molecule table merges into the base station to be allocated.
According to the guard space in the isolation of system look-up table between obtained all systems, by the maximum of wherein guard space
Value is specifically obtained by following formula as the isolation radius between two systems:
D=max (d0,d1,d2,..,dn)；
D=d under normal circumstances0, i.e., with the noiseless distance of frequency concurrent multiplexing.
It, can be by base station to be allocated in the model that radius is isolated according to the location information of base station to be allocated, and isolation radius
The base station of the different system of interior correspondence is enclosed as associated base stations.
Base station to be allocated is calculated separately at a distance from associated base stations, and the corresponding system of the different system where with associated base stations
The isolation frequency of the associated base stations is obtained in isolation look-up table, so that composition isolation frequency distribution corresponding with the different system is sub
Table.
All isolation frequency distribution sublists can be obtained by the isolation frequency distribution of the base station to be allocated in conjunction with after
Table.
Such as network includes this system A, different system B1 and B2, wherein A packet embrace base station A1 to be allocated, B1 include base station S1,
S4, S7, B2 include base station S2, S3, S5, S6.A is D1 with the radius of being isolated of B1, and A is D2 with the radius of being isolated of B2, then with A1
Centered on there are the base station S4 of B1 within the scope of D1, the base station S3 centered on A1 within the scope of D2 there are B2, then S3 and S4 are
The associated base stations of A1.Calculating separately the distance between A1 and S3, S4 is l3, l4.From the isolation of system look-up table of A1 and B1
To d2≤l4≤d3, then the corresponding isolation frequency of S4 is f2, so that isolation frequency distribution sublist Z1 corresponding with B1 has been obtained, and
Obtain d1≤l3≤d2 from the isolation of system look-up table of A1 and B2, then the corresponding isolation frequency of S3 be f1, thus obtained with
The corresponding isolation frequency of B2 is distributed sublist Z2.It can be obtained by the institute as shown in table 1 in above-described embodiment after Z1 and Z2 is combined
State the isolation frequency distribution table of base station to be allocated.
The path isolated relation table of each equipment pair of the embodiment of the present invention, the isolation of system obtained between system after remerging are looked into
Look for table, then obtain the isolation frequency distribution table of all base stations, further according to isolation frequency distribution table to it is current each related
The frequency of base station obtains the dividing frequency of the base station to be allocated, so as to must faster instruct the dynamic frequency of sensory perceptual system to select
Select and optimize carrier wave selection, further decrease dynamic spectrum it is shared in interference, increase the utilization rate of frequency spectrum.
Fig. 3 is the apparatus structure schematic diagram of the embodiment of the present invention shared for dynamic spectrum, as shown in figure 3, the dress
It sets and includes at least: receiving module 10 and searching module 11；Wherein,
The receiving module 10 is used to receive the spectrum allocation request of base station to be allocated；The searching module 11 is used for basis
It is current with all associated base stations in the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table
Frequency state send dividing frequency to the base station to be allocated；Wherein, the isolation frequency distribution table include at least one with
The base station to be allocated belongs to the associated base stations of not homologous ray, and isolation frequency corresponding with the associated base stations, and institute
It states associated base stations and is less than default isolation radius at a distance from base station to be allocated.Specifically,
When base stations to be allocated newly accessed with the presence of system or the more frequency spectrum resources of needs, the base to be allocated
Standing-meeting sends corresponding spectrum allocation request to receiving module 10.
Spectrum allocation request is sent to searching module 11 by the receiving module 10, by searching module 11 by receiving
Spectrum allocation request parsing extracts the isolation frequency distribution table corresponding with the base station to be allocated prestored from database,
Described in distribution table include that at least one with the base station to be allocated belongs to not homologous ray associated base stations and each dependency basis
It stands corresponding isolation frequency.If the system where the base station to be allocated is known as this system, and other systems are known as different system,
Then the associated base stations belong to different system, and associated base stations meet preset isolation radius, institute at a distance from base station to be allocated
Stating isolation radius can be preset constant, be also possible to according to the actual needs or according to the correlation between not homologous ray
Property and the value being set separately.
Further according to the frequency state of current each associated base stations, make the dividing frequency for distributing to base station to be allocated meet with it is every
The frequency phase-difference of the requirement of the isolation frequency of a associated base stations, i.e., current each associated base stations is not less than corresponding isolation frequency.
If not finding the dividing frequency for fully meeting isolation frequency requirement, can look for according to the actual needs
Influence out it is the smallest can dividing frequency of the dividing frequency as the base station to be allocated.
Preserve the isolation frequency distribution table of each base station under all systems in network in the geographical data bank, and can be with
It is updated in real time according to the variation for sending and receiving radio-frequency performance index of the foundation of new base station and each base station, thus
Enable each base station as far as possible the not interference by different system associated base stations.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
The embodiment of the present invention passes through the isolation frequency distribution table corresponding to base station to be allocated that prestores and currently each related
The frequency of base station obtains the dividing frequency of the base station to be allocated, so as to must faster instruct the dynamic frequency of sensory perceptual system to select
Select and optimize carrier wave selection, further decrease dynamic spectrum it is shared in interference, increase the utilization rate of frequency spectrum.
Fig. 4 is another apparatus structure schematic diagram shared for dynamic spectrum of the embodiment of the present invention, as shown in figure 4, institute
It states device to include at least: the receiving module 10, the searching module 11, acquisition module 12, the first analysis module 13 and second
Analysis module 14；Wherein,
The acquisition module 12 is used to obtain the performance parameter of each equipment in all systems in network；Wherein, all systems
System includes this system where base station to be allocated and the different system where at least one described associated base stations；The first analysis mould
Block 13 is used for the performance parameter according to each equipment in this system and all different systems, respectively obtain described this system with it is each different
Isolation of system look-up table between system；Second analysis module 14 be used for according to all systems corresponding with described this system every
Geography information from look-up table and the base station to be allocated obtains the isolation frequency distribution table of the base station to be allocated.Specifically
Ground,
In order to obtain the isolation frequency distribution table of each base station, in the meeting of acquisition module 12 collection network under all systems
The performance parameter of each equipment, the system comprises this system and all different systems, the equipment is base station or terminal etc.
Equipment, and the radio-frequency performance that sends and receives that the performance parameter of the equipment includes the equipment such as base station and the terminal of each system refers to
Mark, and located position and the covering radius of each base station.
First analysis module 13 can be according to each equipment in all systems obtained in the acquisition module 12
Performance parameter, transmission performance between available all devices, and then the isolation of system between available any two system is looked into
Table is looked for, among these also includes the isolation of system look-up table of this system and all different systems and two different systems are
System isolation look-up table.
Under isolation of system look-up table between the system obtained according to first analysis module 13, and corresponding two systems
The geography information of each base station, second analysis module 14 adhere to the base station distance of two base stations of not homologous ray separately by calculating
It can find the isolation frequency that corresponding two base stations need to meet from the isolation of system look-up table, and two base stations
Just associated base stations each other.
Second analysis module 14 in all isolation of system look-up tables there are two base station relationship carry out such as
After the upper analysis, so that it may the isolation frequency of each base station and corresponding all associated base stations in network is obtained, after combination
It can be obtained by the isolation frequency distribution table of each base station.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
The embodiment of the present invention passes through the performance parameter for obtaining each equipment in all systems in network, to obtain all systems
Then isolation of system look-up table between system obtains the isolation frequency distribution table of the base station according to the position of each base station, further according to
The frequency of the corresponding isolation frequency distribution table in base station to be allocated and current each associated base stations, obtains the distribution of the base station to be allocated
Frequency further decreases dynamic frequency so as to must faster instruct dynamic frequency selection and the optimization carrier wave selection of sensory perceptual system
Interference during spectrum is shared, increases the utilization rate of frequency spectrum.
Based on the above embodiment, further, first analysis module is specifically used for, according to described this system and any
The performance parameter of all devices under different system obtains described this system with the path of all interference paths of different systems and pass is isolated
It is table；Wherein, the receiving end of the interference path and transmitting terminal are respectively the first equipment under described this system and the different system
The second equipment under system；It is searched according to the isolation of system that all path isolated relation tables obtain described this system and different systems
Table.
First analysis module calculate two systems between isolation of system look-up table during, first will be according to two
The performance parameter of all devices under system finds out all interference path between two systems；Wherein, the interference path is two
Transmission path under a system between distinct device.
First analysis module can be with by the parsing to every interference path transmitting terminal and the performance parameter of receiving end
Obtain the path isolated relation table of the interference path.
Further, the path isolated relation table of the interference path to following formula by parsing to obtain:
MCLf≥PI(f)-I (f),
Wherein, the f is isolation frequency, the MCLfWhen for isolation frequency being f, first equipment and the second equipment room
Insulated degree requirement, the I (f) be the acceptable jamming power in the receiving end, the PI(f) it is being isolated for the receiving end
The power that frequency receives when being f from the transmitting terminal.
First analysis module is closed according to the location of interference path terminal device, scene and working frequency range, selection
Then suitable propagation model parses interference path with following formula:
MCLf≥PI(f)-I (f),
The wherein MCLfWhen for isolation frequency being f, the insulated degree requirement of the transmitting terminal of the interference path to receiving end；
I (f) is the acceptable jamming power in the receiving end, and it is preset which can be receiving end, can also pass through reception
The performance parameter at end obtains；The PI(f) function received when isolation frequency is f from the transmitting terminal for the receiving end
Rate specifically can send the performance parameters such as power according to the propagation model of selection and the maximum of transmitting terminal and obtain.
Wherein, when isolation frequency is 0, PI(f)=Pt(f), wherein the PtIt (f) is by transmitting terminal with interior transmitting
The reception power that power obtains；
When isolation frequency is greater than 0,The wherein PACIIt is dry for side channel
It disturbs, the PSEFor stray radiation interference, the PIMFor Intermodulation Interference.
First analysis module turns by calculating the insulated degree requirement under different isolation frequency f, then by insulated degree requirement
It is changed to isolation distance, so that it may obtain isolation frequency-isolation distance curve under the interference path, and then obtain path isolation and close
It is table.
After the path isolated relation table of all interference paths is merged, the available this system A of the first analysis module
Isolation of system look-up table between different system B needs to consider coverage radius of cell when merging, i.e., deposits in interference path
It is in cell edge by terminal profile, then the isolation distance of the interference path need to be plus corresponding MPS process half in terminal
Diameter R, is merged by following formula:
Wherein, RaAnd RbThe coverage radius of cell of cell where respectively terminal E1 and R1.I.e. under identical isolation frequency
Compare the isolation distance of each interference path, and is maximized as the guard space between system.Isolation of system is finally obtained to look into
Look for table.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
The embodiment of the present invention passes through the isolation frequency distribution table corresponding to base station to be allocated that prestores and currently each related
The frequency of base station obtains the dividing frequency of the base station to be allocated, so as to must faster instruct the dynamic frequency of sensory perceptual system to select
Select and optimize carrier wave selection, further decrease dynamic spectrum it is shared in interference, increase the utilization rate of frequency spectrum.
Fig. 5 is the electronic devices structure schematic diagram of the embodiment of the present invention.As shown in figure 5, the electronic equipment, comprising: place
Manage device (processor) 601, memory (memory) 602 and bus 603；
Wherein, the processor 601 and the memory 602 complete mutual communication by the bus 603；
The processor 601 is used to call the program instruction in the memory 602, to execute above-mentioned each method embodiment
Provided method, for example, receive the spectrum allocation request of base station to be allocated；According to corresponding with the base station to be allocated
The current frequency state of all associated base stations is to described to be allocated in isolation frequency distribution table and the isolation frequency distribution table
Base station sends dividing frequency；Wherein, the isolation frequency distribution table includes that at least one belongs to not with the base station to be allocated
The associated base stations of homologous ray, and isolation frequency corresponding with the associated base stations, and the associated base stations and base station to be allocated
Distance be less than default isolation radius.
Further, the embodiment of the present invention discloses a kind of computer program product, and the computer program product includes depositing
The computer program in non-transient computer readable storage medium is stored up, the computer program includes program instruction, when described
When program instruction is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, connects
Receive the spectrum allocation request of base station to be allocated；According to isolation frequency distribution table corresponding with the base station to be allocated and it is described every
The current frequency state of all associated base stations sends dividing frequency to the base station to be allocated in off-frequency rate distribution table；Wherein, institute
Stating isolation frequency distribution table includes the associated base stations that at least one belongs to not homologous ray with the base station to be allocated, and with institute
The corresponding isolation frequency of associated base stations is stated, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
Further, the embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient calculating
Machine readable storage medium storing program for executing stores computer instruction, and the computer instruction makes the computer execute above-mentioned each method embodiment institute
The method of offer, for example, receive the spectrum allocation request of base station to be allocated；According to it is corresponding with the base station to be allocated every
The current frequency state of all associated base stations is to the base to be allocated in off-frequency rate distribution table and the isolation frequency distribution table
It stands and sends dividing frequency；Wherein, the isolation frequency distribution table includes that at least one with the base station to be allocated belongs to difference
The associated base stations of system, and isolation frequency corresponding with the associated base stations, and the associated base stations and base station to be allocated
Distance is less than default isolation radius.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as electronic equipment described above are only schematical, wherein it is described as illustrated by the separation member
Unit may or may not be physically separated, and component shown as a unit may or may not be object
Manage unit, it can it is in one place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying wound
In the case where the labour for the property made, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of dynamic spectrum sharing method characterized by comprising
Receive the spectrum allocation request of base station to be allocated；
According to all related to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency distribution table
The current frequency state in base station sends dividing frequency to the base station to be allocated；Wherein, the isolation frequency distribution table includes extremely
Few one belongs to the associated base stations of not homologous ray, and isolation corresponding with associated base stations frequency with the base station to be allocated
Rate, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
2. the method according to claim 1, wherein the method also includes:
Obtain the performance parameter of each equipment in all systems in network；Wherein, where all systems include base station to be allocated
Different system where this system and at least one described associated base stations；
According to the performance parameter of each equipment in this system and all different systems, described this system and each different system are respectively obtained
Between isolation of system look-up table；
It is obtained according to the geography information of all isolation of system look-up tables corresponding with described this system and the base station to be allocated
The isolation frequency distribution table of the base station to be allocated.
3. according to the method described in claim 2, it is characterized in that, described according to each equipment in this system and all different systems
Performance parameter, respectively obtain the isolation of system look-up table of described this system Yu each different systems, specifically:
According to the performance parameter of all devices under described this system and any different system, described this system and different systems are obtained
The path isolated relation table of all interference paths；Wherein, the receiving end of the interference path and transmitting terminal are respectively described and are
The second equipment under the first equipment and the different system under system；
The isolation of system look-up table of described this system and different systems is obtained according to all path isolated relation tables.
4. according to the method described in claim 3, it is characterized in that, the path isolated relation table of the interference path passes through under
Formula parses to obtain:
MCLf≥PI(f)-I (f),
Wherein, the f is isolation frequency, the MCLfWhen for isolation frequency being f, first equipment and the second equipment room every
It is required from degree, the I (f) is the acceptable jamming power in the receiving end, the PIIt (f) is the receiving end in isolation frequency
For the power received when f from the transmitting terminal.
5. according to the method described in claim 2, it is characterized in that, it is described according to all systems corresponding with described this system every
Geography information from look-up table and the base station to be allocated obtains the isolation frequency distribution table of the base station to be allocated, specifically
Are as follows:
It is obtained described radius being isolated according to described this system and the isolation of system look-up table of different systems；
According to the geography information of base station to be allocated, the base in the second equipment all under the different system in isolation radius is obtained
The associated base stations stood as the base station to be allocated；
According to the geography information of corresponding with the different system isolation of system look-up table and each associated base stations, each correlation is obtained
The corresponding isolation frequency in base station, thus composition isolation frequency distribution sublist corresponding with the different system；
Each different system is corresponded into the isolation frequency distribution table that isolation frequency molecule table merges into the base station to be allocated.
6. a kind of device shared for dynamic spectrum characterized by comprising
Receiving module, for receiving the spectrum allocation request of base station to be allocated；
Searching module, for being distributed according to the corresponding isolation frequency distribution table in base station to be allocated and the isolation frequency
The current frequency state of all associated base stations sends dividing frequency to the base station to be allocated in table；Wherein, the isolation frequency
Distribution table includes the associated base stations that at least one belongs to not homologous ray with the base station to be allocated, and with the associated base stations
Corresponding isolation frequency, and the associated base stations are less than default isolation radius at a distance from base station to be allocated.
7. device according to claim 6, which is characterized in that described device further include:
Acquisition module, for obtaining the performance parameter of each equipment in all systems in network；Wherein, all systems include wait divide
With this system where base station and the different system where at least one described associated base stations；
First analysis module respectively obtains described for the performance parameter according to each equipment in this system and all different systems
The isolation of system look-up table of this system and each different systems；
Second analysis module, for according to all isolation of system look-up tables corresponding with described this system and described to be allocated
The geography information of base station obtains the isolation frequency distribution table of the base station to be allocated.
8. device according to claim 7, which is characterized in that first analysis module is specifically used for, according to described
The performance parameter of system and all devices under any different system obtains described this system and all interference paths of different systems
Path isolated relation table；Wherein, the receiving end of the interference path and transmitting terminal are respectively the first equipment under described this system
With the second equipment under the different system；It is according to what all path isolated relation tables obtained described this system and different systems
System isolation look-up table.
9. a kind of electronic equipment, which is characterized in that including memory and processor, the processor and the memory pass through always
Line completes mutual communication；The memory is stored with the program instruction that can be executed by the processor, the processor tune
Method as claimed in claim 1 to 5 is able to carry out with described program instruction.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
Processor realizes method as claimed in claim 1 to 5 when executing.
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| CN107018512A (en) * | 2016-01-28 | 2017-08-04 | 普天信息技术有限公司 | The shared method and system of frequency resource is realized under a kind of spectrum sharing mechanisms |
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| WO2010076773A2 (en) * | 2008-12-29 | 2010-07-08 | France Telecom | Resource allocation method and system |
| CN105636059A (en) * | 2014-10-29 | 2016-06-01 | 电信科学技术研究院 | Method and device for allocating frequency spectrums |
| CN106358200A (en) * | 2015-07-17 | 2017-01-25 | 普天信息技术有限公司 | Frequency spectrum sharing method of cognitive radio system and management terminal |
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