CN108207000B

CN108207000B - PCI code configuration method and device for base station

Info

Publication number: CN108207000B
Application number: CN201611183639.3A
Authority: CN
Inventors: 王珏
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-12-20
Filing date: 2016-12-20
Publication date: 2020-12-01
Anticipated expiration: 2036-12-20
Also published as: CN108207000A

Abstract

The invention discloses a PCI code configuration method and a device of a base station, wherein the method comprises the following steps: when the PCI code group is distributed, the geographical position of a base station to be distributed with the PCI code is obtained; checking whether the geographical location of the base station belongs to one of the squared areas; if yes, selecting at least three continuous PCI codes to be allocated to the base station; the three continuous PCI codes are the PCI codes which are not allocated to use in the PCI code group corresponding to the area to which the geographical position of the base station belongs. The method of the invention can improve the distribution speed of the PCI codes, reduce the possible conflict and confusion of the PCI codes and reduce the cost.

Description

PCI code configuration method and device for base station

Technical Field

The invention relates to the technical field of communication, in particular to a PCI code configuration method and a PCI code configuration device for a base station.

Background

In the specification, a Self-organizing Network (SON) technology is newly added in a 3rd Generation Partnership Project (3 GPP) specification, and in the specification, a Time Division Long Term Evolution (TD-LTE) system can replace manual operation of a conventional Network through autonomous Self-organizing functions of Self-planning, Self-installation, Self-configuration, Self-optimization, Self-healing, Self-backhaul and the like of a radio access Network, so that participation of operation and maintenance personnel can be greatly reduced, and Network construction and operation and maintenance cost of an operator can be reduced.

The self-configuration can greatly reduce the process that an engineer repeats manual parameter configuration in the network opening process, and the network construction cost and difficulty are reduced. PCI (Physical layer Cell Identity) self-configuration is used for the configuration of PCI codes, and each base station can automatically select the PCI through the self-configuration by the system.

The existing PCI self-configuration method is usually realized in a centralized manner, that is, OM (operation management) issues PCI codes allocated to cells for enodebs (Evolved Node bs). The current centralized PCI code allocation can be manually allocated by an operator or current network operation and maintenance personnel, and can also be automatically allocated by an SON management central station. The automatic discovery of PCI code conflict/confusion is realized by eNodeB, and the new PCI code conflict/confusion allocation is realized by SON management central station (hereinafter referred to as management station).

The main principle of the process of newly building a network and reconfiguring PCI in the whole network is to reduce the appearance of the same PCI code at adjacent geographic positions and prevent the cells with the same PCI code from being added into adjacent cells. The coverage radius of a base station cell of an LTE system is about 350 meters generally, adjacent base station cells can be layered according to distances according to different base station spacing distances, 1 layer of cell is arranged in one spacing distance, 2 layers of cells are arranged in 2 spacing distances, adjacent 1-3 layers of adjacent cells are often added when the base station is added with the adjacent cells, when the number of base stations in an administrative geographical area is dense, the problem of PCI code conflict/confusion is difficult to ensure by manual distribution, and the problem of PCI code distribution is obvious.

The management station can uniformly calculate and distribute the PCI codes for all base stations in the administrative geographical area according to the existing adjacent cell relation and the base station geographical position distance, but the PCI code collision/confusion problem can not be ensured when the adjacent cell is newly added.

For the convenience of management of the existing network operation and maintenance, the PCI codes of cells in the same base station usually adopt sequential digital sequences, and for example, 3 LTE cells in one base station can be respectively configured with the PCI codes of {101, 102, 103 }. When the management station calculates the PCI codes, the PCI codes can only be distributed from a limited unused PCI code table, and the newly given PCI codes and the PCI codes of other cells in the base station still can not be ensured to be sequential digital sequences, so that the management of the operation and maintenance of the current network is inconvenient.

Therefore, the management station provides a group of conflict-free and confusion PCI codes after calculating a plurality of parameters, all PCI code data need to be screened and calculated every time, and the calculation is time-consuming and complex.

In addition, the conflict-free confusion PCI codes calculated by the management station cannot be planned with other cells in the same base station in a unified way, and the use status of the PCI in the current network is not met.

Disclosure of Invention

In view of the above problems, the present invention provides a PCI code configuring method and apparatus for a base station, which overcomes or at least partially solves the above problems.

To this end, in a first aspect, the present invention provides a PCI code configuring method for a base station, including:

the PCI code configuration device acquires the geographical position of a base station to be allocated with the PCI codes when the PCI codes are allocated;

the PCI code configuration device checks whether the geographic position of the base station belongs to one of the divided nine-grid areas;

if yes, the PCI code allocation device selects at least three continuous PCI codes to allocate to the base station; the three continuous PCI codes are the PCI codes which are not allocated to use in the PCI code group corresponding to the area to which the geographical position of the base station belongs.

Optionally, after the step of the PCI code configuring device checking whether the geographic location of the base station belongs to one of the divided nine-grid areas, the method further includes:

if the geographic position of the base station does not belong to one of the divided nine-grid areas, the PCI code configuration device divides the nine-grid according to the geographic position of the base station to obtain nine-grid areas corresponding to the nine-block PCI code groups one by one; the geographic position of the base station belongs to one of the divided nine-grid areas;

the PCI code allocation device selects at least three continuous PCI codes to allocate to the base station; and the three continuous PCI codes are the PCI codes which are not allocated for use in the PCI code group corresponding to the area to which the geographical position of the base station belongs.

Optionally, before the step of selecting at least three consecutive PCI codes by the PCI code configuring device to be allocated to the base station, the method further includes:

the PCI code configuration device checks whether the PCI codes which are not allocated to use exist in the PCI code groups corresponding to the area to which the geographical position of the base station belongs;

if yes, the PCI code allocation device executes the step of selecting at least three continuous PCI codes to allocate to the base station;

otherwise, the PCI code configuration device sends prompt information for prompting that no PCI code is available to the terminal held by the operator.

Optionally, before the step of obtaining the geographical location of the base station to which the PCI code is to be allocated, the method further includes:

the PCI code configuration device groups all PCI codes according to a mode of 54 PCI codes in a group to obtain 9 PCI code groups and a standby code group;

wherein, the PCI codes in each PCI group are continuous in sequence.

Optionally, the step of dividing the nine-square grid by the PCI code configuring device according to the geographical location of the base station to obtain nine-square grid regions corresponding to nine-block PCI code groups one to one includes:

determining a geographical area center position, wherein the distance between the geographical area center position and the geographical position of the base station is within a preset range;

determining the coverage density of part or all base stations in the geographic area according to the central position of the geographic area;

obtaining and determining nine block geographic position ranges in the nine-grid according to the geographic area center position and the coverage density to obtain a nine-grid area;

and the obtained nine palates and nine PCI code groups are in one-to-one correspondence.

Optionally, the obtaining the geographic location of the base station to which the PCI code is to be allocated includes:

sending a geographical position information acquisition request to the base station;

and receiving the geographical position information fed back by the base station according to the geographical position acquisition request.

searching a prestored work parameter table with the base station according to the identification of the base station;

and acquiring the geographical position information of the base station from the work parameter table of the base station.

Optionally, each cell region in all the nine-cell regions corresponds to one PCI code group;

the PCI code groups of each grid region in each nine-grid region are not repeated;

the PCI code groups of any two nine-grid regions belonging to the same-position grid region are the same.

In a second aspect, the present invention provides a PCI code configuring apparatus for a base station, including:

the acquisition unit is used for acquiring the geographical position of the base station to be allocated with the PCI code when the PCI code group is allocated;

the checking unit is used for checking whether the geographic position of the base station belongs to one of the divided Sudoku areas;

a selecting unit, configured to select at least three consecutive PCI codes when the checking unit determines that the geographic location of the base station belongs to one of the divided nine-grid regions, where the three consecutive PCI codes are PCI codes that are not allocated for use in a PCI code group corresponding to the region to which the geographic location of the base station belongs;

and the distribution unit is used for distributing the at least three continuous PCI codes selected by the selection unit to the base station.

Optionally, the apparatus further comprises:

the nine-grid division unit is used for dividing the nine-grid according to the geographical position of the base station to obtain nine-grid areas which are in one-to-one correspondence with nine-block PCI code groups when the check unit determines that the geographical position of the base station does not belong to one of the divided nine-grid areas; and the geographic position of the base station belongs to one of the divided nine-grid areas.

Optionally, the selecting unit is further configured to

Checking whether the PCI codes which are not allocated for use exist in the PCI code groups corresponding to the area to which the geographical position of the base station belongs; if so, selecting at least three continuous PCI codes, wherein the three continuous PCI codes are PCI codes which are not distributed and used in a PCI code group corresponding to the area to which the geographical position of the base station belongs;

correspondingly, the device further comprises: a transmitting unit;

the sending unit is further configured to send a prompt message for prompting that no PCI code is available to the terminal held by the operator when the selecting unit does not select at least three consecutive PCI codes.

Optionally, the apparatus further comprises: a code-group allocation unit for allocating a code group,

the code group allocation unit is used for grouping all PCI codes according to a mode of a group of 54 PCI codes before the acquisition unit to obtain 9 PCI code groups and a standby code group;

wherein, the PCI codes in each PCI group are continuous in sequence.

Optionally, the Sudoku division unit is specifically used for

Optionally an acquisition unit, in particular for

In a third aspect, the present invention further provides a management center, where the management center includes any one of the above PCI code configuring apparatuses for a base station.

According to the technical scheme, the method and the device for configuring the PCI codes of the base station determine the PCI codes to be allocated currently by combining the geographical position of the base station to be allocated with the PCI codes, so that the allocation speed of the PCI codes can be improved, possible conflicts and confusion of the PCI codes can be reduced, and the cost can be effectively saved.

Drawings

Fig. 1 is a flowchart illustrating a PCI code configuring method of a base station according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a PCI code configuring method of a base station according to another embodiment of the present invention;

FIGS. 3A-3D are schematic diagrams of a Sudoku area in an embodiment of the invention;

fig. 4 is an architecture diagram of a conventional 4x4 cellular network;

fig. 5 is an architecture diagram of a conventional 3x3 cellular network;

fig. 6 is a schematic diagram of a 4x4 cellular network shown in an embodiment of the present invention;

fig. 7 is a schematic diagram of a 3x3 cellular networking shown in an embodiment of the invention;

fig. 8 is a schematic structural diagram of a PCI code configuring apparatus of a base station according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention.

At present, the 3GPP protocol specifies 504 PCI codes with pseudo-random numbers, which are identifiers of cell identification and channel Synchronization of the TD-LTE network, and are determined by PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) together, and if the PCI codes of base stations in the system are not properly configured, the first influence is cell Synchronization, and the second influence is cell interference.

Therefore, in practical networking application, different cells with the same PCI code must appear in the PCI code configuration with a limited number, and in order to avoid inter-cell interference and correctly identify each neighboring cell, the PCI code configuration needs to satisfy the following two conditions:

1) no conflict: any two adjacent cells with the same frequency cannot use the same PCI code;

2) not to be confused: no two cells of the same frequency in all the neighbourhoods of a cell can use the same PCI code.

The first condition ensures that the UE distinguishes different neighboring cells because the UE (User Equipment) cannot distinguish two neighboring cells with the same frequency and the same PCI code. The second condition ensures that the current cell can correctly identify two adjacent cells, because the UE reports the measurement report after entering the cell edge zone, the measurement report identifies different cells by PCI codes, and if two same-frequency adjacent cells of the current serving cell have the same PCI code, the serving cell cannot distinguish which adjacent cell the UE measurement report is for, and therefore cannot make a correct handover decision, and the UE cannot normally handover between cells.

In the prior art, a PCI code self-configuration method generally adopts a centralized type and a distributed type, wherein the centralized type is formed by OM (orthogonal component management) to issue PCI codes distributed to cells for eNodeB (evolved node B) in a unified manner; the distribution firstly provides a candidate PCI list by OM, then the eNodeB excludes some unsuitable PCI codes, and finally the eNodeB randomly selects the PCI codes from the remaining list as the PCI codes of the own cell. Compared with distributed type and centralized type, the centralized type O & M is simpler and easier to do work and needs less workload of manual participation.

For this reason, the present application is directed to an improvement of the PCI code self-configuration method in the centralized distribution manner, and refer to the following descriptions of fig. 1 to 4. The execution subjects of the method in the embodiment of the invention are all management stations/management centers.

As shown in fig. 1, fig. 1 is a flowchart illustrating a PCI code configuring method for a base station according to an embodiment of the present invention, where an execution main body of the following method is a PCI code configuring device, and the method according to the embodiment includes the following steps:

101. and when the PCI code group is distributed, acquiring the geographical position of the base station to be distributed with the PCI code.

For example, the management station may send a request for obtaining geographical location information to the base station; and receiving the geographical position information fed back by the base station according to the geographical position acquisition request.

Or, the prestored working parameter table with the base station can be searched through the identifier of the base station; and acquiring the geographical position information of the base station from the work parameter table of the base station. As exemplified by the work reference tables set forth below.

102. Checking whether the geographic position of the base station belongs to one of the divided nine-grid areas;

103. if the area belongs to one of the divided nine-grid areas in the step 102, selecting at least three continuous PCI codes to be allocated to the base station; the three continuous PCI codes are the PCI codes which are not allocated to use in the PCI code group corresponding to the area to which the geographical position of the base station belongs.

Optionally, if the geographical location of the base station in the foregoing step 102 does not belong to one of the divided nine-grid regions, the method shown in fig. 1 further includes the following step 104:

104: dividing the nine-square grids according to the geographical position of the base station to obtain nine-square grid areas corresponding to nine-block PCI code groups one by one; and the geographic position of the base station belongs to one of the divided nine-grid areas.

105. Selecting at least three continuous PCI codes to be allocated to the base station; and the three continuous PCI codes are the PCI codes which are not allocated for use in the PCI code group corresponding to the area to which the geographical position of the base station belongs.

That is, the management station including the PCI code configuring apparatus first checks whether the geographical area including the base station is divided into the nine-grid area, and if the center position of one geographical area is not automatically selected, the nine-grid area is divided.

Further searching for an unused PCI code group according to the position of the base station of the PCI code to be distributed in the 9 grids, and waiting for manual processing if no information indicating that no available PCI code is found; if an automatically assigned available PCI code is found.

It should be noted that, in this embodiment, before executing step 103, the method further includes the following step 103a, which is not shown in the figure:

103 a: checking whether the PCI codes which are not allocated for use exist in the PCI code groups corresponding to the area to which the geographical position of the base station belongs;

if yes, execute the above step 103; otherwise, sending a prompt message for prompting that no PCI code is available to a terminal held by an operator so that the operator can adjust by adopting the PCI code of the standby block.

The PCI code allocation method of the base station in the embodiment determines the PCI code to be allocated currently in combination with the geographical position of the base station to which the PCI code is to be allocated, so that the allocation speed of the PCI code can be increased, possible conflicts and confusion of the PCI code can be reduced, and the cost can be effectively saved.

It is understood that in the method shown in fig. 1, the executing agents are all management stations or management centers including PCI code configuring devices. For example, when a base station to which a PCI code has been allocated detects a PCI code collision/confusion event, the base station may trigger the management station to execute the above method flow; or, the management station actively initiates PCI code conflict/confusion detection, and if a PCI code conflict/confusion event exists, the method flow is executed; or, the management station actively initiates the redistribution of the PCI code and executes the above method flow.

In an alternative implementation, the method shown in fig. 1 may further include the following step 100 before step 101, as shown in fig. 2:

100. grouping all PCI codes according to a mode of 54 PCI codes to obtain 9 PCI code groups and a standby code group;

wherein, the PCI codes in each PCI group are continuous in sequence.

For example, the range of PCI codes currently being 0-503, the PCI codes for this range may be divided into 9 blocks of blocks (i.e., nine code groups) and 1 spare block (i.e., one spare code group), the 9 blocks of blocks having 54 sequential PCI codes per block, and no PCI codes assigned to the spare blocks.

1, partitioning: 1 to 54;

and 2, partitioning: 55-108;

3, partitioning: 109-162;

4, partitioning: 163-216;

5, partitioning: 217-270;

6, partitioning: 271-324;

7, partitioning: 325-;

8, partitioning: 379-432;

9, partitioning: 433 and 486;

a standby block: 0,487-503.

The above-mentioned 54 PCI codes per block are allocated 3 sequence codes by one base station, and 18 base stations can be allocated. The spare blocks can be used for cell coverage base station/blind repair use.

In another alternative implementation, step 104 in the method shown in fig. 1 may include sub-steps 1041 to 1044, which are not shown in the following figures.

1041. And determining the center position of the geographic area, wherein the distance between the center position of the geographic area and the geographic position of the base station is within a preset range.

In this embodiment, the geographic area center position may also be a suitable base station geographic position, or may also be a prominent marker or other building marker.

The determined center position of the geographic area may be any one of the corresponding nine-check grid areas, as shown in fig. 3A and 3C, the determined center position of the geographic area may be any one of the areas to which the numbers 1 to 9 belong, and this embodiment does not limit this, and is adjusted as needed.

1042. And determining the coverage density of part or all of the base stations in the geographic area according to the central position of the geographic area.

In this embodiment, the coverage density of the base station may be determined according to information of the base station in an employee table (e.g., table one and table two below) stored in the management station in advance, and then the following formula one is used to calculate, so as to obtain the coverage density of the base station, for example, the distance between any two adjacent base stations in the geographic area may be selected to calculate, and then the coverage densities of all the base stations in the geographic area may be better determined.

In practical application, the management station may also send a work parameter table acquisition request to the base station in advance, so that the base station sends the internally stored work parameter table to the manager according to the work parameter table acquisition request, and the management station determines the coverage density of part or all of the base stations in the geographic area according to the work parameter table.

1043. And obtaining and determining the range of the geographic positions of the nine blocks in the nine-grid according to the central position and the coverage density of the geographic area to obtain the nine-grid area.

1044. And the obtained nine palates and nine PCI code groups are in one-to-one correspondence.

In this embodiment, the position of each cell in two adjacent nine-grid cells that are arbitrarily expanded is relatively fixed (as shown in fig. 3B and fig. 3D), and the PCI code in the same cell may not fix the relative position.

Namely, each grid region in all the nine-grid regions corresponds to one PCI code group; the PCI code groups of each grid region in each nine-grid region are not repeated; the PCI code groups of any two nine-grid regions belonging to the same-position grid region are the same. The PCI code groups corresponding to each nine-grid region in any adjacent nine-grid region are the same.

It should be noted that, the management station stores the work parameter tables of all base stations in advance, determines the distance between the base stations according to the information in the work parameter tables, and allocates the PCI code to the base station by using the above method. The following table I and table II are both preset work attendance table structures, and various information is listed in the work attendance table structures.

The first table and the I-ginseng table have the structures:

watch two

In addition, 2 base station inter-cell distance algorithms (formula one) are calculated:

the first formula explains that:

a equals Lat 1-Lat 2 is the difference between two latitudes;

b is the difference between two longitude points Lng1-Lng 2;

lat1/Lng1 represents latitude and longitude of point A (base station A), Lat2/Lng2 represents latitude and longitude of point B (base station B);

6378.137 is the radius of the earth in kilometers;

the calculation result S is in kilometers.

For better understanding of the embodiments of the present invention, the detailed description will be made with reference to fig. 1 and fig. 2 and fig. 3A to fig. 3D, fig. 4, fig. 5, fig. 6 and fig. 7 described below.

The existing network base station deployment can be equivalent to a cellular network, and one PCI code block can allocate 18 base stations, namely, the cellular network layout capable of being formed into 4x4 (shown in fig. 4) at maximum, and the cellular network layout capable of being formed into 3x3 at minimum (shown in fig. 5) is provided. The remaining unused 6 PCI codes (spare codes) can be used for indoor coverage base station/blind repair.

Fig. 3A and 3C show any one of the nine-grid regions, and each grid region in the nine-grid region may correspond to a set of PCI code groups. In a specific application, the nine-grid region shown in fig. 3A can be arbitrarily expanded in geographic location, as shown in fig. 3B, fig. 3B shows an expansion of one nine-grid region of fig. 3A, where in the expansion, the PCI code group corresponding to each grid region in the nine-grid region is unchanged, that is, in fig. 3B, assuming that "1" corresponds to the first PCI code group, the nine-grid region is expanded by nine or more, and the positions of "1" in all the expanded nine-grid regions are fixed, that is, the position of the first PCI code group is fixed, but all PCI codes in the first PCI code group can be arbitrarily allocated in a manner of three sequential codes, without defining the positions of PCI codes in the PCI code group. Accordingly, see fig. 3C and 3D.

That is to say, the 9 divided PCI blocks are configured cyclically in a nine-square grid manner, each PCI block is fixed in the position of the nine-square grid, the PCI codes belonging to the PCI blocks can be configured arbitrarily, and each base station is sequentially allocated according to three sequential codes.

It can be seen from fig. 3B that base stations in any block, adding a new neighbor cell with the same PCI code, span at least the other 2 blocks, and PCI code collision problems may occur if the cell layout of the 4x4 is to exceed at least 8 layers. If the 3x3 cellular network layout is constructed, PCI code collision problems may occur beyond at least 6 layers.

Therefore, in the embodiment of the invention, the distance between the base stations is selected according to different coverage densities of the base stations in different administrative geographical areas, and the coverage range of the base station which can be allocated by one PCI code block can be calculated:

first, high density coverage: the base station spacing is usually 300-

a) The addition of the source cell to the same PCI code triggers a collision requiring the addition of at least 8 layers as shown in figure 6. The minimum base station distance reaches 2400 m, and the super-far adjacent cells which belong to the super-far adjacent cells cannot be added;

b) the source cell is added to 2 cells with the same PCI code to trigger confusion, 3 layers of calculation are added at most according to the adjacent cells, the middle circle position in the graph 6 is the position of the base station where the source cell is located, the adjacent cells at the circle positions at two sides are added with the position of the base station with the maximum distance of 3 layers, and the source cell can be seen not to be added to 2A base station cells which are closest to the source cell.

Second, medium density coverage, typically 500-800 m base station spacing, low density coverage: the typical base station spacing is 800-1200 meters;

for medium-density and low-density, the neighboring cell distance is far higher than that of a high-density coverage base station, and the PCI code collision/confusion problem is more difficult to occur.

Each block of the 3x3 cellular network shown in fig. 7 can cover an area of at least 1Km by 1Km at the minimum, each block of the 4x4 cellular network shown in fig. 6 can cover an area of at least 1.2Km by 1.2Km at the minimum, and 54 cells of 18 base stations can be deployed in each block, so that the requirement of the existing network can be completely met.

As shown in fig. 8, fig. 8 is a schematic structural diagram of a PCI code configuring apparatus for a base station according to an embodiment of the present invention, where the apparatus of this embodiment may include: the device comprises an acquisition unit 81, a checking unit 82, a selection unit 83 and a distribution unit 84;

the obtaining unit 81 is configured to obtain a geographic location of a base station to which the PCI code is to be allocated when the PCI code group is allocated;

the checking unit 82 is used for checking whether the geographic position of the base station belongs to one of the divided squared regions;

the selecting unit 83 is configured to select at least three consecutive PCI codes when the checking unit 82 determines that the geographic location of the base station belongs to one of the divided nine-grid regions, where the three consecutive PCI codes are PCI codes that are not allocated for use in the PCI code group corresponding to the region to which the geographic location of the base station belongs;

the allocating unit 84 is configured to allocate the at least three consecutive PCI codes selected by the selecting unit to the base station.

In addition, the selecting unit 83 is further configured to check whether there is an unallocated PCI code in the PCI code group corresponding to the area to which the geographical location of the base station belongs; if so, selecting at least three continuous PCI codes, wherein the three continuous PCI codes are PCI codes which are not distributed and used in a PCI code group corresponding to the area to which the geographical position of the base station belongs;

at this time, the aforementioned apparatus may further include a transmitting unit not shown in the drawings; the sending unit is further configured to send a prompt message for prompting that no PCI code is available to the terminal held by the operator when the selecting unit does not select at least three consecutive PCI codes.

In an alternative implementation, the aforementioned apparatus may further include a squared figure dividing unit not shown in the figure,

the nine-grid division unit is used for dividing the nine-grid according to the geographical position of the base station to obtain nine-grid areas corresponding to nine-block PCI code groups one by one when the check unit 82 determines that the geographical position of the base station does not belong to one of the divided nine-grid areas; and the geographic position of the base station belongs to one of the divided nine-grid areas.

In another alternative implementation, the apparatus further includes a code group allocation unit not shown in the figure;

the code group allocation unit is used for grouping all PCI codes according to a mode of one group of 54 PCI codes before the acquisition unit to obtain 9 PCI code groups and a standby code group;

wherein, the PCI codes in each PCI group are continuous in sequence.

For example, the grid division unit can be specifically used for

In addition, the aforementioned obtaining unit may be specifically configured to send a geographic location information obtaining request to the base station; and receiving the geographical position information fed back by the base station according to the geographical position acquisition request.

Or, the obtaining unit is specifically configured to search a pre-stored work parameter table associated with the base station according to the identifier of the base station; and acquiring the geographical position information of the base station from the work parameter table of the base station.

In this embodiment, each cell region in all the nine-cell regions corresponds to one PCI code group;

The device of the embodiment can improve the distribution speed of the PCI codes, reduce the possible conflicts of the PCI codes and reduce the occurrence of the PCI code conflict problem to a certain extent. The PCI self-configuration method is more suitable for networking deployment of the TD-LTE network system, and the aim of saving network optimization labor cost is fulfilled.

The apparatus shown in fig. 8 may perform the scheme of any one of the method embodiments shown in fig. 1 to fig. 7, and the embodiment is not described in detail with reference to the above description.

The device of the embodiment can lock the position of a specific fault on the receiving link, realizes automatic positioning, realizes one-click positioning information acquisition for an operator, shortens the period of fault position acquisition, and reduces the cost of searching fault position information.

In addition, an embodiment of the present invention further provides a management central station, where the management central station may include any of the PCI code configuring apparatuses described above.

Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.

Those skilled in the art will appreciate that the steps of the embodiments may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for configuring PCI codes of a base station, comprising:

if yes, the PCI code allocation device selects at least three continuous PCI codes to allocate to the base station; the three continuous PCI codes are not distributed and used in the PCI code group corresponding to the area to which the geographical position of the base station belongs;

after the step of the PCI code configuring device checking whether the geographical location of the base station belongs to one of the divided nine-grid areas, the method further comprises:

the PCI code allocation device selects at least three continuous PCI codes to allocate to the base station; the three continuous PCI codes are PCI codes which are not allocated to use in the PCI code groups corresponding to the area to which the geographical position of the base station belongs;

before the step of obtaining the geographical location of the base station to which the PCI code is to be allocated, the method further includes:

wherein, the PCI codes in each PCI group are continuous in sequence.

2. The method of claim 1, wherein before the step of the PCI code configuring means selecting at least three consecutive PCI codes to be allocated to the base station, the method further comprises:

3. The method of claim 1, wherein the step of the PCI code configuring device dividing the nine-square grid according to the geographical location of the base station to obtain nine-square grid regions corresponding to nine-block PCI code groups one-to-one comprises:

4. The method of claim 1, wherein obtaining the geographical location of the base station to which the PCI code is to be assigned comprises:

5. The method of claim 1, wherein obtaining the geographical location of the base station to which the PCI code is to be assigned comprises:

6. The method of claim 1, wherein each of all nine-grid regions corresponds to one PCI code group;

7. An apparatus for configuring a PCI code of a base station, comprising:

the distribution unit is used for distributing the at least three continuous PCI codes selected by the selection unit to the base station;

the device further comprises:

the nine-grid division unit is used for dividing the nine-grid according to the geographical position of the base station to obtain nine-grid areas which are in one-to-one correspondence with nine-block PCI code groups when the check unit determines that the geographical position of the base station does not belong to one of the divided nine-grid areas; the geographic position of the base station belongs to one of the divided nine-grid areas;

the device further comprises: a code-group allocation unit for allocating a code group,

wherein, the PCI codes in each PCI group are continuous in sequence.

8. The apparatus of claim 7, wherein the selecting unit is further configured to select the selected cell

correspondingly, the device further comprises: a transmitting unit;

9. Device according to claim 7, characterized by a Sudoku partitioning unit, in particular for

10. Device according to claim 7, characterized by an acquisition unit, in particular for

11. Device according to claim 8, characterized by an acquisition unit, in particular for

12. The apparatus of claim 7, wherein each of all nine-grid regions corresponds to one PCI code group;

13. A management center comprising the PCI code configuring apparatus of the base station of any one of the above claims 7 to 12.