CN103152743B - A kind of method and device of automatic detection and distribution physical-layer cell identifier - Google Patents
A kind of method and device of automatic detection and distribution physical-layer cell identifier Download PDFInfo
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- CN103152743B CN103152743B CN201110401288.XA CN201110401288A CN103152743B CN 103152743 B CN103152743 B CN 103152743B CN 201110401288 A CN201110401288 A CN 201110401288A CN 103152743 B CN103152743 B CN 103152743B
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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
- H04W16/12—Fixed resource partitioning
Abstract
The present invention provides a kind of automatic detection and the method and device of distribution physical-layer cell identifier, and wherein method includes：The parameter for obtaining the layout data of the cell of base station and setting the cell to distribute automatically required for physical-layer cell identifier PCI；The division of cluster is carried out to the network area of the base station according to the layout data and the parameter, obtains border cluster and central area cluster；Obtain the available PCI scopes of the central area cluster, and the PCI scopes pre-set for the border cluster；The PCI scopes pre-set according to the available PCI scopes of the central area cluster and the border cluster, PCI is distributed automatically for the cell of the base station.The solution of the present invention can reduce the PCI conflicts of minizone and obscure.
Description
Technical field
The present invention relates to the 3G (Third Generation) Moblie Long Term Evolution 3GPP LTE systems of wireless communication field, one is particularly related to
Kind automatic detection and the method and device for distributing physical-layer cell identifier.
Background technology
L1 marks (PCI, or Phy-CID, Physical Cell Identity) are physical-layer cell identifier in other words
The important configuration parameters of wireless area in LTE system, share 504 cell IDs.And the quantity of wireless area will be far longer than
The scope of PCI marks, therefore the PCI multiplexings between cell are exactly inevitable.But provide PCI not in 3GPP technical specifications
It can conflict, obscure, conflict is that the PCI of two neighbor cells can not be identical, obscures two adjacent sub-cells for referring to a cell
PCI can not be identical, otherwise UE None- identifieds cell, therefore PCI multiplexing just needs to follow Lothrus apterus, aliasing free principle.Such as
Fruit PCI is not within the scope of or do not have cell PCI, then base station can not provide business.How PCI multiplexing is efficiently completed,
Ensure that it is to need to solve the problems, such as in LTE system that PCI resource is saved while Lothrus apterus is obscured.Current method is all to use people
The method of work planning is the good PCI of base station planning, and the PCI of planning needs guarantee to conflict to obscure.Needed when clashing and obscuring
Network optimization personnel are wanted to re-start PCI optimization.Cell is numerous in network, using manually planning, can increase the probability of error,
The reliability arranged net is reduced, while increases the human input of the network planning and optimization, increases the O＆M cost of operator.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of automatic detection and distribution physical-layer cell identifier method and
Device, can solve the finiteness of PCI numbers and the contradictory problems of huge number of cells.
In order to solve the above technical problems, embodiments of the invention provide a kind of automatic detection and distribution physical-layer cell identifier
Method, including：
Obtain the layout data of the cell of base station and set the cell to distribute automatically needed for physical-layer cell identifier PCI
The parameter wanted；
The division of cluster is carried out to the network area of the base station according to the layout data and the parameter, obtains border
Cluster and central area cluster；
Obtain the available PCI scopes of the central area cluster, and the PCI scopes pre-set for the border cluster；
The PCI scopes pre-set according to the available PCI scopes of the central area cluster and the border cluster, are described
The cell of base station distributes PCI automatically.
Wherein, it is described that drawing for cluster is carried out to the network area of the base station according to the layout data and the parameter
The step of dividing, obtaining border cluster and central area cluster includes：
The network area scope of the base station is obtained according to the layout data；
The border cluster that the network area is divided into space according to the parameter and the center in addition to the border cluster
Region；
The central area is divided into multiple central area clusters.
Wherein, the described the step of central area is divided into multiple central area clusters, includes：
Obtain the cell cluster area for including multiple cells；
The central area is divided into multiple central area clusters according to the cell cluster area.
Wherein, described the step of obtaining the cell cluster area for including multiple cells, includes：
Obtain the cell average area of the central area；
Obtain the cell average area and be multiplied by the first product that minimum number of cells obtains in cluster；
Obtain cluster minimum widith and be multiplied by the second product that cluster minimum constructive height obtains；
First product and the greater in second product are taken, as the cell cluster area.
Wherein, also include after the described the step of central area is divided into multiple central area clusters：
Coordinate setting is carried out to the multiple central area cluster；
The coordinate of the multiple central area cluster is ranked up according to preset order；
The numbering being multiplexed to the multiple central area cluster after sequence is set, and the cluster of multiplexing uses identical PCI
Scope.
Wherein, described the step of being ranked up according to preset order to the coordinate of the multiple central area cluster, includes：
The coordinate of the multiple central area cluster is ranked up according to incremental order；
The step of numbering that the multiple central area cluster after described pair of sequence is multiplexed is set includes：
If the coordinate of Far Left central area cluster is x=1 in the central area, if described central area the top cluster
Coordinate is y=1；The numbering that the multiple central area cluster is multiplexed=((X-1) mod 2)+((y-1) mod 2) × 2.
Wherein, described the step of obtaining the central area cluster available PCI scopes, includes：
Obtain the PCI scopes of the base station；
According to the PCI scopes of the base station, and cluster multiplexing number, the available PCI scopes of the central area cluster are obtained.
Wherein, the PCI models pre-set according to the available PCI scopes of the central area cluster and the border cluster
The step of enclosing, PCI is distributed automatically for the cell of the base station includes：
The physical location information and PCI of all cells of the base station are obtained, and needs to redistribute PCI cell
Physical location information；
Border or central area cluster according to where cell physical location information inquires about cell, and obtain the border cluster
PCI scopes or the central area cluster available PCI scope；
Count the PCI of the cell in the cluster where cell access times；
According to the access times of the PCI, to need the cell for redistributing PCI to distribute PCI automatically.
Wherein, the access times according to the PCI, to need the cell for redistributing PCI to distribute PCI step automatically
Suddenly include：
If there is the PCI that access times are 0, select the PCI that access times are 0, for need to redistribute PCI cell oneself
Dynamic distribution PCI；Otherwise, new cell is selected to be more than anti-collision thresholding, and new cell and institute with the minizone distance using the PCI
The distance for having other cells uses less than the PCI that the anti-number for obscuring thresholding is less than or equal to twice to the new cell, described new small
Area is to need to redistribute PCI cell.
, wherein it is desired to the cell for redistributing PCI determines in the following manner：
Base station is changed by neighboring BS relationship, cell parameter change triggers carry out the detection that PCI conflicts are obscured, and it is mixed to obtain conflict
The PCI values and type of message that the cell confused is obscured information, conflict；And conflict is chosen to obscure number at most and called in cell
Establish the cell that the minimum cell of number redistributes PCI as described in；
Or
Base station is restarting, X2 oral sexes mutually and by way of switch triggering or cycle detection detect PCI conflicts and obscured, and obtains
The PCI values and type of message that the cell obscured that must conflict is obscured information, conflict；And it is most and small to choose conflict to obscure number
The minimum cell of call setup number redistributes PCI cell as described in area.
Wherein, the cell that PCI is redistributed described in determination is reported network management system by the base station, by the network management system
Reassign the selection of PCI cell；Or the base station itself is selected and needs the cell for redistributing PCI and report institute
Network management system is stated, PCI is redistributed for the cell for redistributing PCI by the network management system.
Wherein, also include after the step of cell for the base station distributes PCI automatically：
PCI allocation results are illustrated in the monitoring of the network management system, and obtain the configuration mode of user's selection, and will
Terminal in current area is moved out, and resets the PCI of cell according to the configuration mode of selection after user confirms, and
The PCI for resetting cell is synchronized into network element to come into force；Or the PCI allocation results are handed down to the base station, by
The base station resets the PCI of cell, and result will be set to report the network management system, updates corresponding PCI and by automatically
Distribution PCI result is illustrated in the monitoring；
Or
PCI allocation results are illustrated in the monitoring of the network management system, and reset the PCI of cell automatically immediately,
The cell PCI reset is synchronized into network element to come into force；Or the PCI allocation results are handed down to the base station, and by institute
The PCI that base station resets cell is stated, result will be set to report the network management system, update corresponding PCI, and will distribute automatically
PCI result is illustrated in the monitoring.
The present invention also provides a kind of automatic detection and distributes the device of physical-layer cell identifier, including：
First obtains module, for the cell that obtains base station layout data and set the cell to distribute physics automatically
Parameter required for layer cell identifiers PCI；
Division module, for carrying out cluster to the network area of the base station according to the layout data and the parameter
Division, obtains border cluster and central area cluster；
Second obtains module, for obtaining the available PCI scopes of the central area cluster, and it is advance for the border cluster
The PCI scopes of setting；
PCI distribute modules, for being pre-set according to the available PCI scopes of the central area cluster and the border cluster
PCI scopes, distribute PCI automatically for the cell of the base station.
Wherein, the division module includes：
First obtains submodule, for obtaining the network area scope of the base station according to the layout data；
First division submodule, for by border cluster that the network area is divided into space and being removed according to the parameter
Central area outside the border cluster；
Second division submodule, for the central area to be divided into multiple central area clusters.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, by the way that the network area of base station is divided into border cluster and central area cluster, wherein border cluster
The east of network area, south, west and northern 4 border clusters as described in, and PCI scopes are set for border cluster, and central area cluster is automatic
Distribute PCI so that the PCI conflicts of minizone and obscure reductions, the lance for solving the finiteness of PCI numbers and huge number of cells
Shield problem so that reliability enhancing of arranging net, the human input of the network planning and optimization reduce, and reduce operation maintenance into
This.
Brief description of the drawings
Fig. 1 is the automatic detection of the present invention and the method flow schematic diagram of distribution physical-layer cell identifier；
Fig. 2 is that cluster divides schematic flow sheet in method of the invention；
Fig. 3 is PCI allocation flow schematic diagrames in method of the invention；
Fig. 4 is the handling process schematic diagram of PCI conflicts confusion message in method of the invention；
Fig. 5 is the schematic flow sheet of existing network guard system interaction in base station in method of the invention；
Fig. 6 is PCI invalid values or unallocated PCI handling process schematic diagram in method of the invention；
Fig. 7 is the automatic detection of the present invention and the apparatus structure schematic diagram of distribution physical-layer cell identifier.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As shown in figure 1, a kind of automatic detection of embodiments of the invention and the method for distribution physical-layer cell identifier, including：
Step 11, obtain the layout data of the cell of base station and set the cell to distribute physical-layer cell identifier automatically
Parameter required for PCI；
Step 12, the division of cluster is carried out to the network area of the base station according to the layout data and the parameter,
Obtain border cluster and central area cluster；
Step 13, the available PCI scopes of the central area cluster, and the PCI pre-set for the border cluster are obtained
Scope；
Step 14, the PCI models pre-set according to the available PCI scopes of the central area cluster and the border cluster
Enclose, PCI is distributed automatically for the cell of the base station.
In the embodiment, the parameter preferably includes：Network boundary parameter and cluster size relevant parameter；The network area
Domain scope is determined by the most border cell center of the base station plus border cell radius；By by the network area of base station
Border cluster and central area cluster, wherein border the cluster such as east of the network area, south, west and northern 4 border clusters are divided into, and
For border cluster, PCI scopes are set, and central area cluster distributes PCI automatically so that the PCI of minizone conflicts and obscures reduction, solves
The certainly finiteness of PCI numbers and the contradictory problems of huge number of cells.
In embodiment of the method shown in above-mentioned Fig. 1, it is preferred that above-mentioned steps 12 include：
Step 121, the network area scope of the base station is obtained according to the layout data；
Step 122, the network area is divided into and except the border cluster by border cluster in space according to the parameter
Outer central area；
Step 123, the central area is divided into multiple central area clusters.
Further, the step 123 includes：Obtain the cell cluster area for including multiple cells；The central area is pressed
Multiple central area clusters are divided into according to the cell cluster area.
Wherein, the step of obtaining the cell cluster area comprising multiple cells includes：The cell for obtaining the central area is put down
Equal area；Specifically, central area cell average area=central area area/central area cell number；Further obtain
The cell average area is multiplied by the first product that minimum number of cells obtains in cluster；And obtain cluster minimum widith and be multiplied by cluster most
The second product that low height obtains；First product and the greater in second product are taken, as the cell cluster face
Product；Take the maximum of minimum number of cells × central area cell average area and cluster minimum widith × cluster minimum constructive height in cluster
Value, it is then assumed that cluster is square, the width and height of cluster are calculated, central area has now been divided into some square clusters.
Further, in the above method, after the described the step of central area is divided into multiple central area clusters also
Including：Coordinate setting is carried out to the multiple central area cluster；Coordinate according to preset order to the multiple central area cluster
It is ranked up；The numbering being multiplexed to the multiple central area cluster after sequence is set, and the cluster of multiplexing uses identical PCI
Scope.
Further, described the step of being ranked up according to preset order to the coordinate of the multiple central area cluster, wraps
Include：The coordinate of the multiple central area cluster is ranked up according to incremental order；
The step of numbering that the multiple central area cluster after described pair of sequence is multiplexed is set includes：If in described
The coordinate of Far Left central area cluster is x=1 in heart district domain, if the coordinate of described central area the top cluster is y=1；It is described
The numbering that multiple central area clusters are multiplexed=((X-1) mod 2)+((y-1) mod 2) × 2.
In the above-mentioned methodical embodiment of institute, in the step 13, the available PCI scopes of the central area cluster are obtained
The step of include：Obtain the PCI scopes of the base station；According to the PCI scopes of the base station, and cluster multiplexing number, institute is obtained
State the available PCI scopes of central area cluster.As webmaster can obtain the PCI scopes of different base station, then being calculated for each cluster can
With PCI scopes, computational methods are：PCI scopes/cluster multiplexing number, PCI quantity needs to be more than minimum PCI quantity in cluster in cluster, no
Then need to re-start minimum PCI quantity in the division or modification cluster of cluster, available PCI is then distributed evenly over multiplexing cluster
In.
In another embodiment of the invention, above-mentioned steps 14 can include：
The physical location information and PCI of all cells of the base station are obtained, and needs to redistribute PCI cell
Physical location information；
Border or central area cluster according to where cell physical location information inquires about cell, and obtain the border cluster
PCI scopes or the central area cluster available PCI scope；
Count the PCI of the cell in the cluster where cell access times；
According to the access times of the PCI, to need the cell for redistributing PCI to distribute PCI automatically.
Further, the access times according to the PCI, to need the cell for redistributing PCI to distribute PCI automatically
The step of include：If have access times be 0 PCI, select access times for 0 PCI, to need to redistribute the small of PCI
Area distributes PCI automatically；Otherwise, new cell is selected to be more than anti-collision thresholding, and new cell with the minizone distance using the PCI
Used with the distance of all other cell less than the PCI that the anti-number for obscuring thresholding is less than or equal to twice to the new cell, it is described
New cell is to need to redistribute PCI cell.
Further, it is necessary to which the cell for redistributing PCI determines in the following manner：Base station changed by neighboring BS relationship,
Cell parameter change triggers carry out the detection that PCI conflicts are obscured, and obtain the PCI that the cell that conflict is obscured is obscured information, conflict
Value and type of message；And choose conflict obscure number at most and in cell the minimum cell of call setup number as described heavy
New distribution PCI cell；Either base station restarting, X2 oral sexes mutually and switch triggering or cycle detection by way of detect
PCI conflicts are obscured, and obtain PCI values and type of message that the cell that conflict is obscured is obscured information, conflict；And choose conflict mixed
The number that confuses is at most and the minimum cell of call setup number redistributes PCI cell as described in cell.
Wherein, the cell that PCI is redistributed described in determination is reported network management system by the base station, by the network management system
Reassign the selection of PCI cell；Or the base station itself is selected and needs the cell for redistributing PCI and report institute
Network management system is stated, PCI is redistributed for the cell for redistributing PCI by the network management system.
Below in conjunction with the detailed implementation of specific brief description of the drawings above method embodiment：
First specific implementation embodiment：
To realize the automatic assigning process of the PCI of the division of the cell cluster of above-mentioned base station and cell in network management system, such as
Shown in Fig. 2, this method includes：
Step S101：By network management system import base station all layout datas, planning do not plan cell PCI or
A base station and cell are newly increased by network management system in operational network；
Step S102：Related cluster allocation of parameters (i.e. above-mentioned automatic distribution physics is imported or set by network management system
Parameter required for layer cell identifiers PCI), including network boundary parameter and cluster size relevant parameter, wherein, network boundary parameter
Including：Border cell radius, border width and boundary height, cluster size relevant parameter include：Cluster multiplexing factor, cell cluster are minimum
Width, cell cluster minimum constructive height, cell cluster Breadth Maximum, cell cluster maximum height, cell maximum quantity in cluster, cell is most in cluster
Minimum available PCI quantity in smallest number, cluster, meet minimal number of beeline requirement of cell etc. in cluster；
Step S103：Network management system obtains the network area for the base station that webmaster is managed according to layout data：Most border is small
District center position adds border cell radius；
Step S104：The division of cluster is carried out by network management system, according to the geographical location information of cell such as border width and
Network range is divided into the border cluster of east, south, west, north four by boundary height, it is remaining centered on region, border cluster uses advance
The border PCI scopes of setting；
Step S105：Central area is carried out to the division of cluster：It is central area face to calculate central area cell average area
Product/central area cell number, cell cluster area is then calculated, method is to take minimum number of cells × central area cell in cluster
The maximum of average area and cluster minimum widith × cluster minimum constructive height, it is then assumed that cluster is square, calculate the width and height of cluster
Degree, has now been divided into some square clusters by central area；
Step S106：Cell number in cluster is counted, cell number needs to be more than minimum cell number in cluster, and is less than cluster
Interior largest cell number, when counting minimum number, including minizone distance does not count less than the cell of beeline requirement, that is, neglect
Slightly apart from small cell, the probability for preventing cell large increase PCI from conflicting, need to reset the size of cluster if being unsatisfactory for
Or cell minimum number and beeline requirement, repartition；
Step S107：Central area cluster is subjected to coordinate setting, the central area Far Left cluster coordinate is x=1, described
Central area the top cluster coordinate is y=1；Then according to from left to right, progress coordinate is incremented by from top to bottom；Then it is multiplexed
The numbering of cluster is set, and specific method is cluster multiplexing numbering=((x-1) mod2)+((y-1) mod 2) × 2, and the cluster of multiplexing uses phase
Same PCI scopes；
Step S108：Network management system obtains the PCI scopes of different base station, then calculates available PCI scope, meter for each cluster
Calculation method is：PCI scopes/cluster multiplexing number, PCI quantity needs to be more than minimum PCI quantity in cluster in cluster, otherwise needs to enter again
Available PCI, is then distributed evenly in multiplexing cluster by minimum PCI quantity in the division of row cluster or modification cluster；For a base
The computational methods for the central area cluster stood are identical with this；
Step S109：The automatic distribution functions of PCI in enabled network management system；
Step S110：PCI automatic distribution is carried out in network management system.
As shown in figure 3, PCI automatic allocation flow can include：
Step S111：Network management system obtain base station network area all cell physical locations and PCI information and
Need to redistribute the geographical location information of PCI cell；
Step S112：Cluster where distribution PCI cell geographical position inquiry cell as needed, so as to obtain in cluster
PCI scopes, PCI access times in the cluster are counted, are arranged by order from big to small；
Step S113：Select first untapped PCI (i.e. access times for 0 PCI), if without untapped PCI,
New cell is then selected to be more than anti-collision thresholding, and new cell and every other cell with the minizone distance using the PCI
Distance uses less than the PCI that the anti-number for obscuring thresholding is less than or equal to twice to the new cell, often distributes a PCI, updates PCI
Access times；
Step S114：Webmaster updates respective cell PCI, and PCI allocation results are illustrated in the Surveillance center of network management system.
Second specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Figure 4, Figure 5, this method include：
Step S201：PCI self-optimization functions are enabled in network management system；
Step S202：Base station is changed by neighboring BS relationship, cell parameter change triggers carry out the detection that PCI conflicts are obscured,
Testing result is reported into network management system, reports information to include the cell that conflict is obscured and information (cell ECGI), conflict is obscured
PCI values, type of message (conflict or obscure)；
Step S203：Network management system receives the message that base station reports, and then selects occurrence number at most and is exhaled in cell
Cry and establish the minimum cell of number as the cell for redistributing PCI；
Step S204：The reporting district information for needing to redistribute PCI to SON Surveillance center, is treated user by network management system
Continued executing with after confirmation；
Step S205：Network management system obtains all cell physical locations of base station and PCI information and needs to divide again
The physical location information of cell with PCI；
Step S206：Cluster according to where cell physical location inquires about cell, so as to obtain PCI scopes in cluster, statistics should
PCI access times in cluster, arranged by order from big to small；
Step S207：Untapped PCI is selected first, if without untapped PCI, selects new cell should with using
PCI minizone distance is more than anti-collision thresholding, and the distance of new cell and every other cell obscures thresholding less than anti-
The PCI that number is less than or equal to twice uses to the new cell, often distributes a PCI, updates PCI access times；
Step S208：PCI allocation results are illustrated in SON monitoring by network management system, (vertical after user's option and installment mode
I.e., the manual and scheduled time) web influence caused by PCI possibility is redistributed in prompting, and the UE in current area is moved out, use
After the confirmation of family cell PCI is reset according to the mode of being pre-configured with；
Step S209：The cell parameter reset is synchronized to that network element comes into force or webmaster is by distribution by network management system
PCI is handed down to base station, and base station resets cell PCI, and result will be set to report webmaster.
Step S210：If webmaster sets PCI, then the automatic allocation results of PCI are directly illustrated in SON monitoring by webmaster
On, if base station sets PCI, then the result that webmaster updates corresponding PCI and distributes PCI automatically is illustrated in SON monitoring.
3rd specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Figure 4, Figure 5, this method include：
Step S301：Step S201 with the above-mentioned second specific implementation embodiment enables PCI self-optimization functions on webmaster；
Step S302：Base station is by restarting, X2 oral sexes are mutual and switch triggering detection PCI conflicts are obscured, by information reporting
Network management system；
Step S303-S310 is the same as the step S203-S210 in the above-mentioned second specific implementation embodiment.
4th specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Figure 4, Figure 5, this method include：
Step S401：With the step S201 of the above-mentioned second specific implementation embodiment；
Step S402：Testing result is reported network management system by base station by way of cycle detection；
Step S403-S410 is the same as the step S203-S210 in the above-mentioned second specific implementation embodiment.
5th specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Figure 4, Figure 5, this method include：
Step S501：With the step S201 of the above-mentioned second specific implementation embodiment；
Step S502：Base station detection PCI conflicts confusion result reports webmaster, detection mode include it is above-mentioned second and third, four tools
Body realizes step S202 in embodiment, the detection method of S302, S402 description；
Step S503：With the step S203 in the above-mentioned second specific implementation embodiment；
Step S504：Network management system will need the reporting district information redistributed to SON Surveillance center；
Step S505：With the step S111 of embodiment one；
Step S506：With the step S112 of embodiment one；
Step S507：With the step S113 of embodiment one；
Step S508：PCI allocation results are illustrated in SON monitoring by network management system, and reconfigure PCI immediately；
Step S509：The cell parameter reset is synchronized to that network element comes into force or webmaster is by distribution by network management system
PCI is handed down to base station, and base station resets cell PCI, and result will be set to report network management system；
Step S510：If webmaster sets PCI, then directly the automatic allocation results of PCI are illustrated in SON monitoring, such as
Fruit is that base station sets PCI, then the result that network management system updates corresponding PCI and distributes PCI automatically is illustrated in SON monitoring.
6th specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Fig. 4, Fig. 5, Fig. 6, this method includes：
Step S601：Detected when restarting that either cell PCI changes or by way of being periodically detected base station
Whether whether PCI values distributed or be invalid value, and testing result is reported into webmaster, reports parameter to include the cell ECGI of invalid value
(Eutran Cell Goal Identify), i.e. Mobile Country Code MCC MCC, Mobile Network Code MNC, base station IDs, cell ID；
Step S204 to step S210 of the following steps with the above-mentioned second specific implementation embodiment.
7th specific implementation embodiment of the above method of the present invention：
Still to realize the PCI Automatic Optimal mistakes of the division of the cell cluster of above-mentioned base station and cell in network management system
Journey, as shown in Fig. 4, Fig. 5, Fig. 6, this method includes：
Step S601s of the step S701 with the above-mentioned 6th specific implementation embodiment；
Step S504 to step S510 of the following steps with the above-mentioned 5th specific implementation embodiment.
As shown in fig. 7, embodiments of the invention also provide a kind of automatic detection and distribution physics with the above method correspondingly
The device 70 of layer cell identifiers, including：
First obtains module, for the cell that obtains base station layout data and set the cell to distribute physics automatically
Parameter required for layer cell identifiers PCI；
Division module, for carrying out cluster to the network area of the base station according to the layout data and the parameter
Division, obtains border cluster and central area cluster；
Second obtains module, for obtaining the available PCI scopes of the central area cluster, and it is advance for the border cluster
The PCI scopes of setting；
PCI distribute modules, for being pre-set according to the available PCI scopes of the central area cluster and the border cluster
PCI scopes, distribute PCI automatically for the cell of the base station.
Wherein, the division module includes：
First obtains submodule, for obtaining the network area scope of the base station according to the layout data；
First division submodule, for by border cluster that the network area is divided into space and being removed according to the parameter
Central area outside the border cluster；
Second division submodule, for the central area to be divided into multiple central area clusters.
Further, all features adapt to the embodiment for the device in above method embodiment, can also reach phase
Same technique effect, will not be repeated here.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (11)
1. a kind of method of automatic detection and distribution physical-layer cell identifier, it is characterised in that including：
Obtain the layout data of the cell of base station and set the cell to distribute automatically required for physical-layer cell identifier PCI
Parameter；
The division of cluster is carried out to the network area of the base station according to the layout data and the parameter, obtain border cluster and
Central area cluster；
Obtain the available PCI scopes of the central area cluster, and the PCI scopes pre-set for the border cluster；
The PCI scopes pre-set according to the available PCI scopes of the central area cluster and the border cluster, it is the base station
Cell distribute PCI automatically；It is described that cluster is carried out to the network area of the base station according to the layout data and the parameter
Division, the step of obtaining border cluster and central area cluster includes：
The network area scope of the base station is obtained according to the layout data；
The border cluster that the network area is divided into space according to the parameter and the central area in addition to the border cluster；
The central area is divided into multiple central area clusters；It is described that the central area is divided into multiple central area clusters
The step of include：
Obtain the cell cluster area for including multiple cells；
The central area is divided into multiple central area clusters according to the cell cluster area.
2. according to the method for claim 1, it is characterised in that the step for obtaining the cell cluster area comprising multiple cells
Suddenly include：
Obtain the cell average area of the central area；
Obtain the cell average area and be multiplied by the first product that minimum number of cells obtains in cluster；
Obtain cluster minimum widith and be multiplied by the second product that cluster minimum constructive height obtains；
First product and the greater in second product are taken, as the cell cluster area.
3. method according to claim 1 or 2, it is characterised in that described that the central area is divided into multiple centers
Also include after the step of region cluster：
Coordinate setting is carried out to the multiple central area cluster；
The coordinate of the multiple central area cluster is ranked up according to preset order；
The numbering being multiplexed to the multiple central area cluster after sequence is set, and the cluster of multiplexing uses identical PCI scopes.
4. according to the method for claim 3, it is characterised in that it is described according to preset order to the multiple central area cluster
Coordinate the step of being ranked up include：
The coordinate of the multiple central area cluster is ranked up according to incremental order；
The step of numbering that the multiple central area cluster after described pair of sequence is multiplexed is set includes：
If the coordinate of Far Left central area cluster is x=1 in the central area, if the coordinate of described central area the top cluster
For y=1；The numbering that the multiple central area cluster is multiplexed=((X-1) mod 2)+((y-1) mod 2) × 2.
5. according to the method for claim 1, it is characterised in that described to obtain the available PCI scopes of central area cluster
The step of include：
Obtain the PCI scopes of the base station；
According to the PCI scopes of the base station, and cluster multiplexing number, the available PCI scopes of the central area cluster are obtained.
6. method according to claim 1 or 5, it is characterised in that described according to the available PCI models of the central area cluster
The step of enclosing and PCI scopes that the border cluster is pre-set, PCI is distributed automatically for the cell of the base station includes：
The physical location information and PCI of all cells of the base station are obtained, and needs to redistribute the thing of PCI cell
Manage positional information；
Border or central area cluster according to where cell physical location information inquires about cell, and obtain the border cluster
The available PCI scope of PCI scopes or the central area cluster；
Count the PCI of the cell in the cluster where cell access times；
According to the access times of the PCI, to need the cell for redistributing PCI to distribute PCI automatically.
7. according to the method for claim 6, it is characterised in that the access times according to the PCI, to need again
The step of distribution PCI cell distributes PCI automatically includes：
If have access times be 0 PCI, select access times for 0 PCI, to need the cell for redistributing PCI to divide automatically
With PCI；Otherwise, select new cell to be more than anti-collision thresholding with the minizone distance using the PCI, and new cell and it is all its
The distance of its cell uses less than the PCI that the anti-number for obscuring thresholding is less than or equal to twice to the new cell, and the new cell is
Need to redistribute PCI cell.
8. according to the method for claim 7, it is characterised in that need the cell for redistributing PCI true in the following manner
It is fixed：
Base station is changed by neighboring BS relationship, cell parameter change triggers carry out the detection that PCI conflicts are obscured, and obtains what conflict was obscured
The PCI values and type of message that cell is obscured information, conflict；And select conflict obscure number at most and cell in call setup
The minimum cell of number redistributes PCI cell as described in；
Or
Base station is restarting, X2 oral sexes mutually and by way of switch triggering or cycle detection detect PCI conflicts and obscured, and is rushed
The PCI values and type of message that the prominent cell obscured is obscured information, conflict；And conflict is chosen to obscure number at most and in cell
The minimum cell of call setup number redistributes PCI cell as described in.
9. according to the method for claim 8, it is characterised in that the base station will redistribute the small of PCI described in determination
Area reports network management system, by the network management system reassign the selection of PCI cell；Or the base station is selected itself
Need to redistribute PCI cell and report the network management system, be the cell for redistributing PCI by the network management system
Redistribute PCI.
10. according to the method for claim 9, it is characterised in that the cell for the base station distributes PCI step automatically
Also include after rapid：
PCI allocation results are illustrated in the monitoring of the network management system, and obtain the configuration mode of user's selection, and will be current
Terminal in cell is moved out, and the PCI of cell is reset according to the configuration mode of selection after user confirms, and by institute
State and reset the PCI of cell and be synchronized to network element and come into force；Or the PCI allocation results are handed down to the base station, by described
Base station resets the PCI of cell, and result will be set to report the network management system, updates corresponding PCI and will distribute automatically
PCI result is illustrated in the monitoring；
Or
PCI allocation results are illustrated in the monitoring of the network management system, and reset the PCI of cell automatically immediately, by weight
Newly-installed cell PCI is synchronized to network element and come into force；Or the PCI allocation results are handed down to the base station, and by the base
Station resets the PCI of cell, and result will be set to report the network management system, update corresponding PCI, and will distribute PCI automatically
Result be illustrated in the monitoring.
A kind of 11. device of automatic detection and distribution physical-layer cell identifier, it is characterised in that including：
First obtains module, for the cell that obtains base station layout data and to set the cell to distribute physical layer automatically small
Parameter required for area mark PCI；
Division module, for carrying out drawing for cluster to the network area of the base station according to the layout data and the parameter
Point, obtain border cluster and central area cluster；
Second obtains module, is pre-set for obtaining the available PCI scopes of the central area cluster, and for the border cluster
PCI scopes；
PCI distribute modules, for what is pre-set according to the available PCI scopes of the central area cluster and the border cluster
PCI scopes, PCI is distributed automatically for the cell of the base station；The division module includes：
First obtains submodule, for obtaining the network area scope of the base station according to the layout data；
First division submodule, for the network area to be divided into border cluster in space and except described according to the parameter
Central area outside the cluster of border；
Second division submodule, for the central area to be divided into multiple central area clusters, specifically, obtaining comprising multiple
The cell cluster area of cell；The central area is divided into multiple central area clusters according to the cell cluster area.
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| CN201110401288.XA CN103152743B (en) | 2011-12-06 | 2011-12-06 | A kind of method and device of automatic detection and distribution physical-layer cell identifier |
| PCT/CN2012/076607 WO2013082926A1 (en) | 2011-12-06 | 2012-06-07 | A method and apparatus for automatically detecting and allocating physical cell identity |
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| CN103607719B (en) * | 2013-11-06 | 2017-02-08 | 广东省电信规划设计院有限公司 | Cell PCI setting method in LTE network and system thereof |
| CN105792162B (en) * | 2014-12-24 | 2019-04-16 | 成都鼎桥通信技术有限公司 | Cell parameter configuration method and mobile base station in mobile communication system |
| KR102004414B1 (en) * | 2015-03-25 | 2019-07-26 | 노키아 솔루션스 앤드 네트웍스 오와이 | Method and system for cell identifier optimization |
| CN107241735B (en) * | 2016-03-29 | 2020-04-14 | 大唐移动通信设备有限公司 | Physical cell mark distribution method and device |
| CN108235334B (en) * | 2016-12-22 | 2020-10-16 | 中国移动通信集团公司 | Neighbor cell planning and checking method and device |
| CN111479300B (en) * | 2019-01-24 | 2021-07-20 | 大唐移动通信设备有限公司 | Method and device for updating neighbor relation |
| EP4011142A4 (en) * | 2019-08-07 | 2022-08-10 | Telefonaktiebolaget LM Ericsson (publ) | Method and system for physical layer sub-cell identity allocation in a wireless network |
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| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
| JP2010268463A (en) * | 2009-05-14 | 2010-11-25 | Ntt Docomo Inc | Method and device for allocating physical layer cell identifier |
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| CN101742484B (en) * | 2008-11-07 | 2013-01-16 | 中兴通讯股份有限公司 | Method for allocating physical cell identity (PCI) and base station |
| CN101772097B (en) * | 2009-01-06 | 2012-04-25 | 华为技术有限公司 | Method and system for allocating physical cell identifiers |
| CN101784055B (en) * | 2009-01-16 | 2015-06-10 | 中兴通讯股份有限公司 | Peripheral component interconnect (PCI) automatic distribution method and device |
| KR101577289B1 (en) * | 2009-10-09 | 2015-12-14 | 삼성전자주식회사 | Method and apparatus for allocating physical cell identifier in wireless communication system |
| CN101720096B (en) * | 2009-11-27 | 2012-03-28 | 西安电子科技大学 | Self-configuration method of physical district ID in LTE cellular network |
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| JP2010268463A (en) * | 2009-05-14 | 2010-11-25 | Ntt Docomo Inc | Method and device for allocating physical layer cell identifier |
| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
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