CN108566285A - A kind of electric power wireless private network high reliability planing method avoiding self-interference - Google Patents
A kind of electric power wireless private network high reliability planing method avoiding self-interference Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
Abstract
The invention discloses a kind of electric power wireless private network high reliability planing methods avoiding self-interference, the ability of customer service survival when the present invention improves base station or transmission network failure by using the overlapping covering of base station signal, and the cell of overlapping is merged to avoid co-channel interference；It is identical in base station number again by the deployment of optimizing tissue base station, average distance between sites when overlapping covering are increased, network reliability is improved under the premise of ensureing network performance；The present invention will cause to interfere with each other between solving the base station of the prior art with frequency overlapping covering, and alien frequencies overlapping covering may be restricted by frequency resource the problem of can not implementing.
Description
Technical field
The invention belongs to communicating for power information technical field, the coverage planning side in especially a kind of electric power wireless private network
Method.
Background technology
With the development that deepens continuously of intelligent grid construction, energy communication service type becomes increasingly abundant, network coverage
Expand year by year with construction scale.In order to support the core missions and target of intelligent grid construction, need to build the wide access of covering
Flexible terminal accesses net.
Optical Access Network has many advantages, such as high bandwidth, anti-interference, damage-retardation ruin, are safe and reliable, is that user experience is optimal
Access means.But Optical Access Network is big in the presence of laying difficulty, the construction period is long, failure recovery time is long, cost of investment is high
The problems such as, it also cannot be satisfied the demand of magnanimity access or mobile access class so that wireless technology system becomes intelligent acess
Necessary complement.
The reliability and safety of electric power monitoring system and its communication network for producing control are paid much attention in electric system
Property.[2005] 5 command of Electricity Monitoring Commission, [2006] No. 34 texts of electricity prison safety, state [2015] No. 36 texts, state can net fortune inspection [2016] safely
No. 576 texts etc. are successively distinctly claimed, and electric power monitoring system should be with the safety of other data networks of electric power enterprise and external information net
Isolation, therefore wireless private network is the only way which must be passed of electric system terminal access network construction.
In practical engineering application, if base station because burst power failure, equipment fault, cable damage lead to base station failure,
Or because the reasons such as covering, interference and key index exception must arrange maintenance down, then under normal base station layout, the base station institute
The terminal of access will go offline, and power business is seriously affected generation.Market in urgent need is a kind of carrying out the cell of overlapping
Merge to ensure that service feature is unaffected, the reliability for improving network while ensure that the electric power wireless private network of network performance
Planing method.
Invention content
To solve the deficiencies in the prior art, it is an object of the invention to propose a kind of electric power wireless private network covering method；This
Invention will cause to interfere with each other between solving base station with frequency overlapping covering, and alien frequencies overlapping covering may be restricted nothing by frequency resource
The problem of method is implemented.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of electric power wireless private network high reliability planing method avoiding self-interference, includes the following steps：
Step 1 collects demand to client, carries out link budget；
Step 2 prepares map, service distribution and propagation model；
Step 3, the selection of high reliability network framework；
If desired dilatation is carried out to having base station, then networking structure a pair of core net, base station, transmission network is selected to carry out public ginseng
Optimization；If desired base station is created, then networking structure two is selected to carry out public ginseng optimization to core net, base station, transmission network；
Networking structure one：
The cell of base station is denoted asWherein NIDFor Physical Cell Identifier, according to 3GPP TS36.201, NID=3NID(1)+
NID(2), wherein NID(2)PSSI is identified for main synchronizing sequence, mark ID of the cell of a base station in base station is indicated, routinely takes
Value is { 0,1,2 }；Three cell directions of base station refer to three cells that base station PSSI is 0,1 and 2 respectively in antenna main lobe
Deflection of the heart line direction relative to direct north (0 °)；
It is in the layout of single overlay network：Base station is successively according to 0 °, 120 °, 240 ° of three entire honeycombs of cell directional structure vectorical structure
Network；Base station covering radius is denoted as r, and r is also the diameter of cell, and base station spacing is denoted as d, and region overlay area is denoted as S, in region
Base station number is denoted as N；
The method of increase base station is in single overlay network：Existing base station is known as backbone base station, and newly-increased base station is known as holding
Calamity base station；Disaster tolerance base station is Chong Die with the covering of backbone base station；Cell is merged, then is set by the station spacing between calculation base station
Set base station；
The computational methods of one station spacing of networking structure are：Disaster tolerance base station to backbone base station spacing dDWith the pass of radius of society r
System is：
Network base station quantity ND=2N, overlay area area S and base station number NDRelationship be：
Increase N number of disaster tolerance base station in the cellular network that networking structure is made of N number of backbone base station to obtain, disaster tolerance base station is suitable
A distance d is translated after reconfiguring adjacent backbone base stationDIt obtains；
Due to dDThe 81.7% of station spacing when only all 2N base stations are uniformly distributed；Station spacing when being uniformly distributed is seen below
Formula：
Networking structure two:
The method of newly-built base station is：Existing base station is known as backbone base station, and newly-increased base station is known as disaster tolerance base station；Backbone base station
Including two kinds of deflections, the first is 90 °, 210 ° and 330 °；Second is 30 °, 150 ° and 270 °；The base station of two kinds of deflections
Alternately deployment constitutes backbone network；Disaster tolerance base station also includes two kinds of deflections, the first is 90 °, 210 ° and 330 °, is for second
30 °, 150 ° and 270 °；The disaster tolerance base station of two kinds of deflections is also alternately disposed；There are two around the first each backbone base station
The first disaster tolerance base station and second of disaster tolerance base station, there are two second of disaster tolerance bases around each second of backbone base station
It stands and the first disaster tolerance base station；The Chong Die part in base station cell is done in calamity base station cell with adjacent bone to merge；Lead to again
Cross the station spacing setting base station between calculation base station；
Networking structure two calculate station spacing method be：Due to symmetry, the first backbone base station and adjacent second appearance
The distance between calamity base station and the distance between second of backbone base station and the first adjacent disaster tolerance base station, are denoted as d1,
Value is d1=r.The distance between the first backbone base station and the first disaster tolerance base station and second backbone base station with second
The distance between disaster tolerance base station is denoted as d2, value is
Due to d1And d2The quantitative proportion of two kinds of station spacings is 1:2, therefore average station spacing is：
Step 4, emulation of coverage capability；If index meets electric power wireless private network demand and design requirement, network is further carried out
The Monte Carlo simulation of performance, if being unsatisfactory for re-starting step 3；
Step 5, Monte Carlo simulation；If index meets electric power wireless private network demand and design requirement, terminate to plan,
Output planning work ginseng, the network coverage and network performance prediction result, if being unsatisfactory for re-starting step 3.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, step 1 are collected to client
After demand, link budget is carried out；
Include specifically two steps.
Step a：According to the rate requirement of electric power wireless private network business uplink and downlink, radio frequency bandwidth, thermal noise power spectrum density,
Receiver noise factor, receiver sensitivity, transmission power, schedulable resource, antenna gain, penetration loss, more than shadow fading
Amount, interference margins, network edge received field strength and signal-to-noise ratio design thresholding, and calculating business uplink and downlink allows path loss MAPL.
Step b：Base station based on electric power wireless private network and terminal antenna hang high, carrier frequency and MAPL estimation electric power without
Line private network list overlay network base distance between sites.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, step 2 prepare map, industry
Business distribution and propagation model；
It needs to carry out planning simulation for objective area after estimation electric power wireless private network station spacing, need with preparing target
The grid or map vector in area obtain terminal traffic distribution and are corrected to propagation model.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, in step 3, networking structure
The method of one cell combining is；Disaster tolerance base station intermittent is placed in the boundary position at 3 adjacent bone butt stations, and makes antenna court
To 0 °, 120 ° and 240 °；Disaster tolerance base station cell uses the identical configuration in backbone base station cell merged with it；Disaster tolerance base station
120 ° of cells and 0 ° of small area overlapping at adjacent bone butt station simultaneously merge；240 ° of cells of disaster tolerance base station and adjacent bone butt station
120 ° of small area overlappings simultaneously merge, and 0 ° of cell of disaster tolerance base station and 240 ° of small area overlappings at adjacent bone butt station simultaneously merge.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, in step 3, networking structure
The method of two cell combinings is：30 ° of disaster tolerance base station cell and 150 ° of small area overlappings at adjacent bone butt station simultaneously merge；Disaster tolerance base station
150 ° of cells and 30 ° of small area overlappings at adjacent bone butt station and merge, 270 ° of cells and the adjacent bone butt station of disaster tolerance base station
90 ° of small area overlappings and merge；330 ° of cells of disaster tolerance base station and 210 ° of small area overlappings at adjacent bone butt station simultaneously merge, disaster tolerance
210 ° of base stations of base station and 330 ° of small area overlappings at adjacent bone butt station simultaneously merge, 90 ° of cells and the adjacent backbone of disaster tolerance base station
270 ° of small area overlappings of base station simultaneously merge.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, step 4, emulation of coverage capability；
In planning area, the backbone base station based on deployment and disaster tolerance base station, in conjunction with the grating map in planning area, by grid
It carries out emulation of coverage capability and calculates the indexs such as field strength, signal-to-noise ratio, the business uplink and downlink rate in planning area, count in each of target area
Total coverage rate of a index；If each index meets electric power wireless private network demand and design requirement, internetworking is further carried out
The Monte Carlo simulation of energy, if being unsatisfactory for re-starting step 3.
A kind of electric power wireless private network high reliability planing method avoiding self-interference above-mentioned, step 5, Monte Carlo are imitative
Very；
In planning area, the backbone base station based on deployment and disaster tolerance base station, in conjunction with the grating map and business in planning area
The distributed model of terminal, by Monte Carlo simulation analog service access procedure, in overlay area, inner iteration increases service terminal
The indexs such as terminal access later, business uplink and downlink rate, business service quality, count target area each index it is total
Coverage rate；If each index meets electric power wireless private network demand and design requirement, terminate to plan, output planning work ginseng, network cover
Lid and network performance prediction result, if being unsatisfactory for re-starting step 3.
The invention has the beneficial effects that：This method improves base station or transmission network by using the overlapping covering of base station signal
The ability that customer service is survived when network failure, and the cell of base station overlapping is merged to avoid co-channel interference.Again by excellent
Change the deployment of tissue base station, it is identical in base station number, average distance between sites when overlapping covering are increased, are being ensured
Network reliability is improved under the premise of network performance.
Description of the drawings
Fig. 1 is a kind of flow chart of embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of embodiment of electric power wireless private network of the present invention；
Fig. 3 is the schematic diagram of cellular communication system routine networking typical deployed mode and partial mulching；
Fig. 4 is the schematic diagram that the cell of base station overlapping of the present invention merges；
Fig. 5 is a kind of structure chart of embodiment of networking structure one of the present invention；
Fig. 6 is a kind of structure chart of embodiment of networking structure two of the present invention.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Fig. 2, electric power wireless private network, including：The remote radio unit (RRU) (RRU) being placed in target coverage area,
The Base Band Unit (BBU) being placed in central machine room, the optical fiber being connected between remote radio unit (RRU) and Base Band Unit；One base
Tape cell can usually support multiple remote radio unit (RRU)s.
As shown in Figure 1, a kind of electric power wireless private network high reliability planing method avoiding self-interference, which is characterized in that packet
Include following steps：
Step 1 collects demand to client, carries out link budget；
Electric power wireless private network service terminal position is fixed, and upper row major, low speed packet services are more, link budget principle
Different from conventional link budget input, principle is identical, including following two steps：
Step a：According to the rate requirement of electric power wireless private network business uplink and downlink, radio frequency bandwidth, thermal noise power spectrum density,
Receiver noise factor, receiver sensitivity, transmission power, schedulable resource, antenna gain, penetration loss, more than shadow fading
Amount, interference margins, network edge received field strength and signal-to-noise ratio design thresholding, and calculating business uplink and downlink allows path loss MAPL.
Step b：Base station based on electric power wireless private network and terminal antenna hang high, carrier frequency and MAPL estimation electric power without
Line private network list overlay network base distance between sites.
Step 2 prepares map, service distribution and propagation model；
It needs to carry out planning simulation for objective area after estimation electric power wireless private network station spacing, need with preparing target
The grid or map vector in area obtain terminal traffic distribution and are corrected to propagation model.
If desired dilatation is carried out to having base station, then networking structure a pair of core net, base station, transmission network is selected to carry out public ginseng
Optimization；If desired base station is created, then networking structure two is selected to carry out public ginseng optimization to core net, base station, transmission network；
Networking structure one：
The cell of base station is denoted asWherein NIDFor Physical Cell Identifier, according to 3GPP TS36.201, NID=3NID(1)+
NID(2), wherein NID(2)PSSI is identified for main synchronizing sequence, mark ID of the cell of a base station in base station is indicated, routinely takes
Value is { 0,1,2 }；Three cell directions of base station refer to three cells that base station PSSI is 0,1 and 2 respectively in antenna main lobe
Deflection of the heart line direction relative to direct north (0 °)；
As shown in the schematic diagram of Fig. 3 cellular communication system routine networking typical deployed modes and partial mulching；Single nerve of a covering
It is in the layout of network：Base station is successively according to 0 °, 120 °, 240 ° of three entire cellular networks of cell directional structure vectorical structure；Base station covering half
Diameter is denoted as r, and r is also the diameter of cell, and base station spacing is denoted as d, and region overlay area is denoted as S, and base station number is denoted as N in region；
Primary synchronization signal identifies (PSSI) with intuitive distinguishing cell.Cell name A1 indicates the 1st cell of base station A.
The same terminal can be made to receive more than one base station signal by increasing base station density in the lte networks
Lead to terminal lost contact to avoid base station fault, improves communication reliability.The method of increase base station is in single overlay network：Have
Base station is known as backbone base station, and newly-increased base station is known as disaster tolerance base station；Disaster tolerance base station is Chong Die with the covering of backbone base station；Cell is carried out
Merge, then base station is arranged by the station spacing between calculation base station；
In order to improve the reliability of network so that at arbitrary base station or its return path failure, whole network covering
It is unaffected, it needs to increase base station redundancy in a network.It the base station of redundancy should be with the completely overlapped covering in original base station.This literary grace
The interference between original covering is avoided with cell combining technology.The principle of cell combining is shown in Fig. 4, can select single using supporting
The base station of one frequency networks (SFN) or adaptive single-frequency network (ASFN) technology is realized.Due to the network tool before and after disaster tolerance
There are an identical overlay area and total number of users, therefore number of cells 3N before and after disaster tolerance in network and radius of society r are constant.
Since each cell needs to repeat to cover once, each cell must comply with original radius of society to accommodate user and avoid doing again
It disturbs, therefore network disaster tolerance problem is converted into the problem of how increasing base station in the hexagonal mesh plane of Fig. 2, makes each six side
Shape grid occurs and the merging of 2 cells only occurs.
Do not changing original site, the siting of station method for doubling redundant cover is shown in Fig. 5；To avoid being more than
One times of over-redundancy, the boundary position for being placed in 3 adjacent bone butt stations of disaster tolerance base station intermittent, disaster tolerance base station are each small
The backbone base station that Qu Yuqi is faced is merged close to cell, merges the identical configuration of cell using with it.This side
Method may be implemented two layers of covering and neither omit nor waste.
In order to avoid disaster tolerance base station and backbone inter base station interference, cell combining is carried out；The side of one cell combining of networking structure
Method is；Disaster tolerance base station intermittent is placed in the boundary position at 3 adjacent bone butt stations, and make antenna towards 0 °, 120 ° and
240°；Disaster tolerance base station cell uses the identical configuration in backbone base station cell merged with it；120 ° of disaster tolerance base station cell with
0 ° of small area overlapping at adjacent bone butt station simultaneously merges；240 ° of cells of disaster tolerance base station and 120 ° of small area overlappings at adjacent bone butt station
And merge, 0 ° of cell of disaster tolerance base station and 240 ° of small area overlappings at adjacent bone butt station simultaneously merge.
The computational methods of one station spacing of networking structure are：Disaster tolerance base station to backbone base station spacing dDWith the pass of radius of society r
System is：
Network base station quantity ND=2N, overlay area area S and base station number NDRelationship be：
Increase N number of disaster tolerance base station in the cellular network that networking structure is made of N number of backbone base station to obtain, disaster tolerance base station is suitable
A distance d is translated after reconfiguring adjacent backbone base stationDIt obtains；
Due to dDThe 81.7% of station spacing when only all 2N base stations are uniformly distributed；Station spacing when being uniformly distributed is seen below
Formula：
Since base station fault is often dug the regional effects such as disconnected for power failure, optical cable, increases station spacing and be conducive to increase
Independence between disaster tolerance base station and backbone base station.When network allows backbone base station with disaster tolerance base station collaborative planning, Ke Yitong
Both combined optimizations site position is crossed to realize more uniform distribution.
Networking structure two:
The method of newly-built base station is：Existing base station is known as backbone base station, and newly-increased base station is known as disaster tolerance base station；Backbone base station
Including two kinds of deflections, the first is 90 °, 210 ° and 330 °；Second is 30 °, 150 ° and 270 °；The base station of two kinds of deflections
Alternately deployment constitutes backbone network；Disaster tolerance base station also includes two kinds of deflections, the first is 90 °, 210 ° and 330 °, is for second
30 °, 150 ° and 270 °；The disaster tolerance base station of two kinds of deflections is also alternately disposed；There are two around the first each backbone base station
The first disaster tolerance base station and second of disaster tolerance base station, there are two second of disaster tolerance bases around each second of backbone base station
It stands and the first disaster tolerance base station；The Chong Die part in base station cell is done in calamity base station cell with adjacent bone to merge；Lead to again
Cross the station spacing setting base station between calculation base station；
Fig. 6 of network coverage structure is compared with Fig. 5, overlay area area S, radius of society r, total number of base amount 2N and merging
Cell total quantity 3N afterwards is constant, but base station relative position changes.Backbone base station include two kinds of deflections, one kind for 90 °,
210 ° and 330 °, such as base station D, another kind is 30 °, 150 ° and 270 °, such as base station E.Disaster tolerance base station deployment is backbone base station three
The position that cell is had a common boundary, the backbone base station that each cell is faced with it is merged close to cell.But three in Fig. 6 backbone networks
Cell boundary position ratio Fig. 5 reduces half because without spacer portion administration's disaster tolerance base station.
In order to avoid interference, the method for two cell combining of networking structure is：30 ° of disaster tolerance base station cell and adjacent bone butt station
150 ° of small area overlappings and merge；150 ° of cells of disaster tolerance base station and 30 ° of small area overlappings at adjacent bone butt station simultaneously merge, disaster tolerance
270 ° of cells of base station and 90 ° of small area overlappings at adjacent bone butt station simultaneously merge；330 ° of cells of disaster tolerance base station and adjacent backbone
210 ° of small area overlappings of base station simultaneously merge, and 210 ° of base stations of disaster tolerance base station and 330 ° of small area overlappings at adjacent bone butt station simultaneously close
And 90 ° of cells of disaster tolerance base station and 270 ° of small area overlappings at adjacent bone butt station and merge.
Networking structure two calculate station spacing method be：There are two kinds of stations in the repeat region confined by black heavy line
Spacing d1And d2；Due to symmetry, the distance between the first backbone base station and adjacent second of disaster tolerance base station and second
The distance between backbone base station and the first adjacent disaster tolerance base station, are denoted as d1, value d1=r.The first backbone base station and the
A kind of the distance between disaster tolerance base station and the distance between second of backbone base station and second of disaster tolerance base station are denoted as d2,
Its value is
Due to d1And d2The quantitative proportion of two kinds of station spacings is 1:2, therefore average station spacing is：
The structure that Fig. 6 is carried is identical with Fig. 5 in covering degree of overlapping and anti-interference ability, and base distance between sites are carried
It is high by 5.2%, reach and be uniformly distributed the 85.9% of station spacing, increases reliability of disaster tolerance.
Step 4, emulation of coverage capability；
In planning area, the backbone base station based on deployment and disaster tolerance base station, in conjunction with the grating map in planning area, by grid
It carries out emulation of coverage capability and calculates the indexs such as field strength, signal-to-noise ratio, the business uplink and downlink rate in planning area, count in each of target area
Total coverage rate of a index.If each index meets electric power wireless private network demand and design requirement, internetworking is further carried out
The Monte Carlo simulation of energy, if being unsatisfactory for re-starting step 3.
Step 5, Monte Carlo simulation；
In planning area, the backbone base station based on deployment and disaster tolerance base station, in conjunction with the grating map and business in planning area
The distributed model of terminal, by Monte Carlo simulation analog service access procedure, in overlay area, inner iteration increases service terminal
The indexs such as terminal access later, business uplink and downlink rate, business service quality, count target area each index it is total
Coverage rate.If each index meets electric power wireless private network demand and design requirement, terminate to plan, output planning work ginseng, network cover
Lid and network performance prediction result, if being unsatisfactory for re-starting step 3.
The energy of customer service survival when this method improves base station or transmission network failure using the overlapping covering of base station signal
Power, while the cell that base station is overlapped being merged to ensure that service feature is unaffected, the anti-interference of cell is realized and is held
Calamity.This method passes through the deployment of optimizing tissue base station, average station when increase overlapping cover identical in base station number
Between distance, improve the effect of overlapping covering, the reliability for improving network while ensure that network performance；It is embodied as electric power industry
Business provides highly reliable guarantee, realizes the function of non-interrupting service during base station Single Point of Faliure or transmission fault.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (7)
1. a kind of electric power wireless private network high reliability planing method avoiding self-interference, which is characterized in that include the following steps：
Step 1 collects demand to client, carries out link budget；
Step 2 prepares map, service distribution and propagation model；
Step 3, the selection of high reliability network framework；
If desired dilatation is carried out to having base station, then selects networking structure a pair of core net, base station, the public ginseng of transmission network progress excellent
Change；If desired base station is created, then networking structure two is selected to carry out public ginseng optimization to core net, base station, transmission network；
Networking structure one：
The cell of base station is denoted asWherein NIDFor Physical Cell Identifier, according to 3GPP TS36.201, NID=3NID(1)+NID(2),
Wherein NID(2)Identify PSSI for main synchronizing sequence, indicate mark ID of the cell in base station of a base station, conventional value be 0,
1、2}；Three cell directions of base station refer to three cells that base station PSSI is 0,1 and 2 respectively antenna main lobe centerline direction
Deflection relative to direct north (0 °)；
The layout of single overlay network is：Base station is successively according to 0 °, 120 °, 240 ° of three entire cellular networks of cell directional structure vectorical structure；
Base station covering radius is denoted as r, and r is also the diameter of cell, and base station spacing is denoted as d, and region overlay area is denoted as S, base station in region
Quantity is denoted as N；
The method of increase base station is in single overlay network：Existing base station is known as backbone base station, and newly-increased base station is known as disaster tolerance base
It stands；Disaster tolerance base station is Chong Die with the covering of backbone base station；Cell is merged, then base is arranged by the station spacing between calculation base station
It stands；
The computational methods of one station spacing of networking structure are：Disaster tolerance base station to backbone base station spacing dDRelationship with radius of society r is：
Network base station quantity ND=2N, overlay area area S and base station number NDRelationship be：
Increase N number of disaster tolerance base station in the cellular network that networking structure is made of N number of backbone base station to obtain, disaster tolerance base station be equivalent to by
Adjacent backbone base station translates a distance d after reconfiguringDIt obtains；
Due to dDThe 81.7% of station spacing when only all 2N base stations are uniformly distributed；Station spacing when being uniformly distributed sees below formula：
Networking structure two:
The method of newly-built base station is：Existing base station is known as backbone base station, and newly-increased base station is known as disaster tolerance base station；Backbone base station includes
Two kinds of deflections, the first is 90 °, 210 ° and 330 °；Second is 30 °, 150 ° and 270 °；The base station alternating of two kinds of deflections
Deployment constitutes backbone network；Disaster tolerance base station also include two kinds of deflections, the first be 90 °, 210 ° and 330 °, second for 30 °,
150 ° and 270 °；The disaster tolerance base station of two kinds of deflections is also alternately disposed；There are two first around the first each backbone base station
Kind of disaster tolerance base station and second of disaster tolerance base station, exist around each second of backbone base station two second of disaster tolerance base stations with
One the first disaster tolerance base station；The Chong Die part in base station cell is done in calamity base station cell with adjacent bone to merge；Pass through meter again
Base station is arranged in the station spacing calculated between base station；
Networking structure two calculate station spacing method be：Due to symmetry, the first backbone base station and adjacent second of disaster tolerance base
It the distance between stands and the distance between second of backbone base station and the first adjacent disaster tolerance base station, is denoted as d1, value is
d1=r.The distance between the first backbone base station and the first disaster tolerance base station and second of backbone base station and second of disaster tolerance
The distance between base station is denoted as d2, value is
Due to d1And d2The quantitative proportion of two kinds of station spacings is 1:2, therefore average station spacing is：
Step 4, emulation of coverage capability；If index meets electric power wireless private network demand and design requirement, network performance is further carried out
Monte Carlo simulation, if being unsatisfactory for re-starting step 3；
Step 5, Monte Carlo simulation；If index meets electric power wireless private network demand and design requirement, terminate to plan, export
Work ginseng, the network coverage and network performance prediction result are planned, if being unsatisfactory for re-starting step 3.
2. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, feature
It is, step 1, to after client's collection demand, carries out link budget；
Include specifically two steps：
Step a：According to the rate requirement of electric power wireless private network business uplink and downlink, radio frequency bandwidth, thermal noise power spectrum density, receive
Machine noise coefficient, transmission power, schedulable resource, antenna gain, penetration loss, shadow fading loss, is done receiver sensitivity
Surplus, network edge received field strength and signal-to-noise ratio design thresholding are disturbed, calculating business uplink and downlink allows path loss MAPL.
Step b：Base station and terminal antenna based on electric power wireless private network hang high, carrier frequency and MAPL estimation electric power is wirelessly special
The single overlay network base distance between sites of net.
3. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, step 2,
Prepare map, service distribution and propagation model；
It needs to carry out planning simulation for objective area after estimation electric power wireless private network station spacing, needs to prepare objective area
Grid or map vector obtain terminal traffic distribution and are corrected to propagation model.
4. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, feature
It is, in step 3, the method for one cell combining of networking structure is；Disaster tolerance base station intermittent is placed in 3 adjacent bone butts
The boundary position stood, and make antenna towards 0 °, 120 ° and 240 °；Disaster tolerance base station cell uses the backbone base station cell merged with it
Identical configuration；120 ° of disaster tolerance base station cell and 0 ° of small area overlapping at adjacent bone butt station simultaneously merge；Disaster tolerance base station
240 ° of cells and 120 ° of small area overlappings at adjacent bone butt station simultaneously merge, 0 ° of cell and the adjacent bone butt station of disaster tolerance base station
240 ° of small area overlappings simultaneously merge.
5. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, feature
It is, in step 3, the method for two cell combining of networking structure is：150 ° of 30 ° of disaster tolerance base station cell and adjacent bone butt station
Small area overlapping simultaneously merges；150 ° of cells of disaster tolerance base station and 30 ° of small area overlappings at adjacent bone butt station simultaneously merge, disaster tolerance base station
270 ° of cells and 90 ° of small area overlappings at adjacent bone butt station simultaneously merge；330 ° of cells of disaster tolerance base station and adjacent bone butt station
210 ° of small area overlappings simultaneously merge, and 210 ° of base stations of disaster tolerance base station and 330 ° of small area overlappings at adjacent bone butt station simultaneously merge, disaster tolerance
90 ° of cells of base station and 270 ° of small area overlappings at adjacent bone butt station simultaneously merge.
6. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, feature
It is, step 4, emulation of coverage capability；
In planning area, the backbone base station based on deployment and disaster tolerance base station are carried out in conjunction with the grating map in planning area by grid
Emulation of coverage capability calculates the indexs such as field strength, signal-to-noise ratio, the business uplink and downlink rate in planning area, counts each finger in target area
The total coverage rate of target；If each index meets electric power wireless private network demand and design requirement, network performance is further carried out
Monte Carlo simulation, if being unsatisfactory for re-starting step 3.
7. a kind of electric power wireless private network high reliability planing method avoiding self-interference according to claim 1, feature
It is, step 5, Monte Carlo simulation；
In planning area, the backbone base station based on deployment and disaster tolerance base station, in conjunction with the grating map and service terminal in planning area
Distributed model, by Monte Carlo simulation analog service access procedure, after overlay area inner iteration increases service terminal
Terminal access, the indexs such as business uplink and downlink rate, business service quality, count total covering in each index of target area
Rate；If each index meets electric power wireless private network demand and design requirement, terminate to plan, output planning work ginseng, the network coverage and
Network performance prediction result, if being unsatisfactory for re-starting step 3.
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