CN106332098A - Method and device for distributing physical cell ID (PCI) - Google Patents
Method and device for distributing physical cell ID (PCI) Download PDFInfo
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- CN106332098A CN106332098A CN201510386786.XA CN201510386786A CN106332098A CN 106332098 A CN106332098 A CN 106332098A CN 201510386786 A CN201510386786 A CN 201510386786A CN 106332098 A CN106332098 A CN 106332098A
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- base station
- pci
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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
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention discloses a method of distributing a physical cell ID (PCI). The method comprises steps: neighborhood information sent by a small cell is received; and by using the neighborhood information, a PCI is distributed for the small cell, wherein the PCI distributed for the small cell does not conflict with the PCI of the small cell in the neighborhood information and does not conflict with PCIs of specific neighbor small cells; the specific neighbor small cells are other neighbor small cells except the small cell in the neighborhood of a large cell; and the large cell is a large cell in the neighborhood information. The invention also discloses a device for distributing the PCI.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of distribution Physical Cell Identifier (PCI, Physical
Cell ID) method and device.
Background technology
Long Term Evolution (LTE, Long Term Evolution) little base station (Small Cell, Picocell or
Nanocell) it is the LTE base station of a kind of miniaturization, has that volume is little, low, easy deployment is installed to launch power
Feature, it is adaptable to the regions such as family, venue, building with realize focus supplement, coverage hole supplement, smart
The purpose really covered.
The little base station of LTE must PCI allocation in deployment.PCI is the crucial ginseng of LTE base station physical layer work
Number, it directly determines cell synchronous sequence, and affects the scrambling mode of multiple physical channel.
Existing LTE base station PCI distribution method mainly has: manual allocation, centralization based on graph theory are automatic
Distribution, the distribution intercepted based on base station, measure based on terminal and the mode such as the distribution that reports.But, by this
When a little methods of salary distribution are applied to LTE little base station, due to the feature of the little base station of LTE self so that these distribution
Mode is commonly present PCI collision problem, thus produces network design difficulty, it is difficult to obtain network topology, switching
Process is complicated and operates at least one problem in these problems relatively big with cost difficulty.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of method distributing PCI and dress
Put.
For reaching above-mentioned purpose, the technical scheme of the embodiment of the present invention is achieved in that
Embodiments provide a kind of method distributing PCI, including:
Receive the neighboring BS information that little base station sends；
Utilize described neighboring BS information, distribute PCI for described little base station；Wherein,
The PCI of not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station conflicts, and not with
The PCI conflict of the little base station of special neighbourhood；The little base station of described special neighbourhood be macro base station adjacent area in except described little
Other adjacent little base station outside base station；Described macro base station is the macro base station in described neighboring BS information.
In such scheme, described not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station
PCI conflicts, for:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
In such scheme, the PCI punching of described not little with the special neighbourhood base station of PCI for the distribution of described little base station
Prominent, for:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
In such scheme, described utilize described neighboring BS information, before described little base station distribution PCI, described
Method also includes:
Determine the macro base station adjacent area in described neighboring BS information；
Correspondingly, during for described little base station distribution PCI, described method also includes:
Evolved-the universal mobile communications of the neighbor base station in the neighboring BS information of all little base station that utilization receives
System Terrestial wireless access network Cell Global Identifier (ECGI, E-UTRAN Cell Global Identifier)
And PCI, it is thus achieved that the PCI of other the adjacent little base station in addition to described little base station of each described macro base station adjacent area.
In such scheme, the described macro base station adjacent area determined in described neighboring BS information, including:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
The embodiment of the present invention additionally provides a kind of device distributing PCI, including: receive unit and allocation unit；
Wherein,
Described reception unit, for receiving the neighboring BS information that little base station sends；
Described allocation unit, is used for utilizing described neighboring BS information, distributes PCI for described little base station；Wherein,
PCI for not medium and small with the described neighboring BS information base station of PCI of described little base station distribution conflicts, and not with specific
In the adjacent area that the PCI conflict little base station of described special neighbourhood is macro base station of adjacent little base station in addition to described little base station
Other adjacent little base station；Described macro base station is the macro base station in described neighboring BS information.
In such scheme, described not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station
PCI conflicts, for:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
In such scheme, the PCI punching of described not little with the special neighbourhood base station of PCI for the distribution of described little base station
Prominent, for:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
In such scheme, described device also includes determining unit, for determining the grand base in described neighboring BS information
Stand adjacent area；
Correspondingly, described allocation unit, when being additionally operable to as described little base station distribution PCI, utilize the institute received
There is ECGI and PCI of neighbor base station in the neighboring BS information of little base station, it is thus achieved that each described macro base station adjacent area
The PCI of other the adjacent little base station in addition to described little base station.
In such scheme, described determine unit, specifically for:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
The method and device of the distribution PCI that the embodiment of the present invention provides, receives the neighboring BS information that little base station sends；
Utilize described neighboring BS information, distribute PCI for described little base station；Wherein, for the PCI of described little base station distribution
The PCI of not medium and small with described neighboring BS information base station conflicts, and the PCI punching of not little with described special neighbourhood base station
Prominent, the little base station of described special neighbourhood be macro base station adjacent area in other adjacent little base station in addition to described little base station；
Described macro base station is the macro base station in described neighboring BS information, so, can be automatically obtained the distribution of little base station PCI,
And the problem that PCI conflict can be effectively prevented from.
Accompanying drawing explanation
In accompanying drawing (it is not necessarily drawn to scale), similar reference can be at different views
Described in similar parts.The similar reference numerals with different letter suffix can represent the difference of similar component
Example.Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is a kind of typical macro base station and LTE little base station networking scene schematic diagram；
Fig. 2 is the method flow schematic diagram that the embodiment of the present invention one distributes PCI；
Fig. 3 be the embodiment of the present invention two be little base station distribution PCI process flow schematic diagram；
Fig. 4 is the embodiment of the present invention two macro base station system and little base station system topological structure schematic diagram；
Fig. 5 is the apparatus structure schematic diagram that the embodiment of the present invention 31 kinds distributes PCI；
Fig. 6 is the apparatus structure schematic diagram of the embodiment of the present invention three another kind of distribution PCI.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment again.
Before describing the embodiment of the present invention, first learn about the method for salary distribution of existing LTE base station PCI in detail,
At present, mainly there is the following four method of salary distribution:
1, manual allocation mode: optimized personnel by the network planning and manually arrange the PCI of each base station, is being arranged
During avoid the problems such as PCI conflict.
2, the automatic method of salary distribution of centralization based on graph theory: network topology is being obtained ahead of time, particularly adjacent
On the premise of cell relation, by coloring algorithm or other algorithms based on graph theory, it is the distribution of each community automatically
PCI。
3, the method for salary distribution intercepted based on base station: the PCI of adjacent area around is intercepted in base station, then divides according to PCI
Registration then, uses distributed algorithm to select a suitable PCI.
4, measure and the method for salary distribution that reports based on terminal: base station is reported by the measurement of terminal and finds that adjacent area makes
PCI.If oneself is identical with the PCI of other adjacent areas, then can select other PCI voluntarily or report
Collision problem is solved to NM server.If the base station find that there have two or more adjacent area to employ to be conflicting
PCI, it indicates that unique mark-ECGI of terminal to report adjacent area.Base station is PCI and ECGI of conflict adjacent area
It is reported to NM server, NM server solves PCI collision problem.
When these methods of salary distribution are applied to the little base station of LTE, being these methods of salary distribution of employing is that LTE is little
During the distribution PCI of base station, due to the feature of the little base station of LTE self so that these methods of salary distribution are commonly present PCI
Collision problem, thus produce network design difficulty, it is difficult to obtaining network topology, handoff procedure is complicated and grasps
Make at least one problem in these problems relatively big with cost difficulty.Specifically:
1, the coverage of the little base station of the shortcoming of manual allocation mode: LTE is little, so can a large amount of portions in network
The administration little base station of LTE, therefore uses manual allocation PCI, then can be greatly increased the difficulty of network design.It addition,
The little base station of LTE of family type is disposed by user, it is impossible to use manual allocation PCI.
2, shortcoming based on the graph theory centralization method of salary distribution: this method of salary distribution needs to obtain network topology structure,
But, the coverage of little base station is little, and quantity is big, and deployment way is flexible, so being difficult to obtain network topology
Structure.
3, the distribution of mode is intercepted based on base station: owing to the little base station of LTE is mainly used in mending blind or concurrent heating, and
Form covering continuously together with macro station, therefore often cannot mutually intercept between the little base station of LTE.If as
The little base station selected identical PCI of two LTE of macro station adjacent area, then there will be the problem that switching is complicated.Lift
For individual example, Fig. 1 gives a typical macro base station and LTE little base station networking scene, such as Fig. 1 institute
Showing, the little base station of LTE B and C, usually used as mending blind or concurrent heating, is deployed in around macro base station A.If adopted
With based on the PCI distribution intercepted, then apart from each other, so can not listen by frame due to the little base station of LTE B and C
To the other side, it is thus possible to identical PCI can be assigned with.If the little base station of LTE B and C is assigned with identical
PCI, then the adjacent area of macro base station A occurs in that PCI confusion, so macro base station A cannot utilize PCI to retrieve only
The adjacent area of one, it is therefore desirable to LTE little base station A instruction terminal measures the ECGI of given PCI adjacent area further,
Thus select adjacent area according to ECGI.Such that handoff procedure is complicated, handover delay is big, consequently, it is possible to
Cause switching call drop, affect network performance.
4, measure and the distribution of reporting schemes based on terminal: in scene as shown in Figure 1, terminal is by LTE
PCI and ECGI of little base station B and C reports macro base station A.If the little base station of LTE B's and C
PCI conflicts, and in the ideal case, macro base station A is it appeared that this problem, and reports network management system solution
Certainly PCI conflict, is that the little base station of LTE B and C distributes PCI again.But, the shortcoming of this settling mode
Being, macro base station and little base station are typically the equipment of different vendor, adhere to different network management systems separately, so working as
Macro base station A is found that when PCI conflicts, and can not notify the network management system of little base station.Therefore PCI cannot be solved
The problem of conflict.If transformation macro base station network management system, so that it can communicate with little base station network management system,
Then cost and operation easier are the biggest.
Based on this, in various embodiments of the present invention: receive the neighboring BS information that little base station sends；Utilize institute
State neighboring BS information, distribute PCI for described little base station；Wherein, for described little base station distribution PCI not with institute
State the PCI conflict of the medium and small base station of neighboring BS information, and the PCI of not little with special neighbourhood base station conflicts；Described spy
Determine other adjacent little base station in addition to described little base station in the adjacent area that adjacent little base station is macro base station；Described grand base
Stand as the macro base station in described neighboring BS information.
Embodiment one
The method of the present embodiment distribution PCI, as in figure 2 it is shown, comprise the following steps:
Step 201: receive the neighboring BS information that little base station sends；
Here, described little base station can be the little base station of LTE etc..
Described neighboring BS information may include that the frequency point information of neighbor base station, PCI and ECGI.
Wherein, for frequency point information and PCI, described little base station can be obtained by cell synchronization channels；Right
In ECGI, described little base station can be obtained by cell broadcast messages.
Step 202: utilize described neighboring BS information, distributes PCI for described little base station.
Wherein, the PCI for not medium and small with the described neighboring BS information base station of PCI of described little base station distribution conflicts,
And the PCI of not little with special neighbourhood base station conflicts；The little base station of described special neighbourhood be macro base station adjacent area in remove
Other adjacent little base station outside described little base station；Described macro base station is the macro base station in described neighboring BS information.
Here, owing to the PCI of the adjacent little base station of LTE must be different, handoff failure can otherwise be caused.
The LTE little base station PCI interfered must stagger by mould 3, pilot signal otherwise can be caused to interfere, shadow
Ring data service.
Based on this, the described PCI of not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station
Conflict, particularly as follows:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
The described PCI for not little with the special neighbourhood base station of PCI of described little base station distribution conflicts, particularly as follows:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
In one embodiment, described utilize described neighboring BS information, before described little base station distribution PCI, should
Method can also include:
Determine the macro base station adjacent area in described neighboring BS information；
Correspondingly, during for described little base station distribution PCI, the method can also include:
Evolved-the universal mobile communications of the neighbor base station in the neighboring BS information of all little base station that utilization receives
System Terrestial wireless access network Cell Global Identifier ECGI and PCI, it is thus achieved that each described macro base station adjacent area
The PCI of other the adjacent little base station in addition to described little base station.
Wherein, the described macro base station adjacent area determined in described neighboring BS information, specifically include:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
Here, during actual application, owing to little base station and macro base station use alien frequencies to dispose, the least base station and Hong Ji
Stand and use different frequencies, therefore can utilize frequency point information, determine the macro base station in described neighboring BS information
Adjacent area.Now in advance the frequency that macro base station uses can be stored the Network Management Equipment to little base station system, for
The Network Management Equipment of described little base station system utilizes frequency point information, determines that the macro base station in described neighboring BS information is adjacent
District.
During actual application, comparing little base station, the quantity of macro base station is fewer, so for ensureing performance of handoffs,
It is usually by manually configuring its macro base station adjacent area for little base station, therefore can utilize the neighboring BS relationship of configuration, come
Determine the macro base station adjacent area in described neighboring BS information.
During actual application, can be that macro base station divides different ECGI scopes with little base station, such that it is able to root
According to the scope belonging to the ECGI of neighbor base station each in neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area.
During actual application, step 201～202 is performed by the Network Management Equipment of little base station system, by little base station system
Self it is automatically obtained the distribution of PCI, so, does not interferes with the normal operation of macro base station system.
The method of the distribution PCI that the embodiment of the present invention provides, receives the neighboring BS information that little base station sends；Utilize
Described neighboring BS information, distributes PCI for described little base station；Wherein, for described little base station distribution PCI not with
The PCI of the medium and small base station of described neighboring BS information conflicts, and the PCI of not little with special neighbourhood base station conflicts, described
The little base station of special neighbourhood be macro base station adjacent area in other adjacent little base station in addition to described little base station；Described grand
Base station is the macro base station in described neighboring BS information, so, can be automatically obtained the distribution of little base station PCI, and energy
The problem being effectively prevented from PCI conflict.
Embodiment two
The present embodiment, on the basis of embodiment one, is specifically described as the process of little base station distribution PCI.Such as figure
Shown in 3, this process comprises the following steps:
Step 301: after the start of little base station, the eating dishes without rice or wine of little base station intercepts all peripheral cells of block search, obtains
Take neighboring BS information；
Here, described neighboring BS information includes: the frequency of neighbor base station, PCI and ECGI.Wherein, little base station
Frequency and the PCI of neighbor base station is obtained by cell synchronization channels；Adjacent area base is obtained by cell broadcast messages
The ECGI stood.
Step 302: little base station sends PCI distribution request to the Network Management Equipment of little base station system；
Here, described PCI request carries the neighboring BS information that little base station obtains.
Wherein, during actual application, the neighboring BS information carried in PCI request can show in the form of a list,
This list is properly termed as the list L of the peripheral cell (neighbor base station) that little base station search arrives, this list L bag
Frequency containing peripheral cell, PCI and ECGI information.
During actual application, as shown in Figure 4, little base station B and C, usually used as mending blind or concurrent heating, is deployed in grand
Around the A of base station, now, little base station B and C can report the neighboring BS information self obtained, and macro base station
A is the neighbor base station of little base station B and C simultaneously, so little base station B and C all can be by the frequency of macro base station A
Point, PCI and ECGI information reporting give the Network Management Equipment (small station webmaster) of described little base station system.Meanwhile,
Owing to little base station B and C is apart from each other, so little base station B and C mutually intercepts less than the other side, the most not
The frequency of the other side, PCI and ECGI information can be reported.
Step 303: after the Network Management Equipment of described little base station system receives PCI distribution request, determine list L
In which adjacent area be macro base station adjacent area；
Here it is possible to utilize the frequency point information in list L, ECGI or preset the neighbour of (being pre-configured with)
Cell relation judges in list L, which adjacent area is macro base station adjacent area.Specifically:
1, for the mode utilizing frequency point information to judge, owing to little base station and macro base station use alien frequencies to dispose, i.e.
Little base station and macro base station use different frequencies, therefore can utilize frequency point information, and which judges in list L
A little adjacent areas are macro base station adjacent area.Now in advance the frequency that macro base station uses can be stored and to described little base station be
The Network Management Equipment of system, the Network Management Equipment for described little base station system utilizes frequency point information, judges list L
In which adjacent area be macro base station adjacent area.
2, for utilizing the mode of the judgement of ECGI, can be that macro base station divides different ECGI with little base station
Scope, so that the Network Management Equipment of little base station system can be according to the ECGI of neighbor base station each in list L
Affiliated scope, judges in list L, which adjacent area is macro base station adjacent area.
3, for the mode utilizing the neighboring BS relationship preset to judge, owing to comparing little base station, the quantity of macro base station
Fewer, so for ensureing performance of handoffs, being usually by manually configuring its macro base station adjacent area for little base station, because of
The Network Management Equipment of this described little base station system can utilize default neighboring BS relationship, and which judges in list L
Adjacent area is macro base station adjacent area.Specifically, the neighbor base station mated with described neighboring BS relationship in list L is
Macro base station adjacent area.
Wherein, in list L, other adjacent area in addition to macro base station adjacent area is adjacent area, little base station.
Step 304: the Network Management Equipment of described little base station system utilizes described neighboring BS information, and combine and determine
Macro base station adjacent area, distributes PCI for described little base station.
Specifically, in the assignment procedure, step 1: the Network Management Equipment of described little base station system is first described little
Distribution one PCI, this PCI to avoid the PCI of adjacent area, base station medium and small with list L to conflict in base station, i.e. can not
Repeat and avoid mould 3 to conflict as far as possible.In other words, the PCI for the distribution of described little base station is medium and small with list L
The PCI of adjacent area, base station differs, and the P mould 3 of the PCI of adjacent area, base station medium and small with list L differs.
Step 2: the ECGI to each the macro base station adjacent area in list L, all in inquiring about little base station system
The neighboring BS information that little base station reports, retrieves adjacent area, the little base station ECGI list N with this macro base station ECGI,
Wherein, list N comprises the ECGI of peripheral cell, frequency and PCI information.If in list N, its
The PCI that the PCI of its adjacent area, little base station is distributed with step 1 sends and conflicts, i.e. the two identical (duplicating)
Time, then adjust the PCI of this little base station so that it is be i.e. avoided that the PCI of adjacent area, base station medium and small with list L conflicts,
It is avoided that again the PCI with other adjacent area, little base station in list N conflicts simultaneously.
For giving an example, as shown in Figure 4, upper from little base station B and C of the Network Management Equipment of described little base station
The neighboring BS information (base station Neighboring Cell List) of report is found that macro base station A, and retrieves the little base of macro base station A
Stand and adjacent area ECGI list N contains ECGI, frequency and the PCI information of little base station B and C.Now,
When distributing PCI for little base station B and C, then need the PCI avoiding repeating into little base station B and C distribution.
From the above description, it will be seen that the PCI allocative decision that the embodiment of the present invention provides, little base station
PCI distribution self is completed by little base station system.Specifically, little base station is not only intercepted peripheral base station and (is included grand
Base station) PCI, the ECGI of peripheral base station to be intercepted (including macro base station)；Little base station is by adjacent cell
PCI and ECGI reports the Network Management Equipment of little base station system, by the Network Management Equipment of described little base station system
It is that PCI is distributed in little base station according to these information unification.
The PCI allocative decision that the embodiment of the present invention provides, is a kind of little base station system side of automatically distributing PCI
Method, does not interferes with the normal operation of macro base station system (including macro station webmaster), can efficiently solve PCI
The problem of conflict.
Embodiment three
For the method realizing the embodiment of the present invention, the present embodiment provides a kind of device distributing PCI, such as Fig. 5
Shown in, this device includes: receive unit 51 and allocation unit 52；Wherein,
Described reception unit 51, for receiving the neighboring BS information that little base station sends；
Described allocation unit 52, is used for utilizing described neighboring BS information, distributes PCI for described little base station；Wherein,
PCI for not medium and small with the described neighboring BS information base station of PCI of described little base station distribution conflicts, and not with specific
The PCI conflict of adjacent little base station；The little base station of described special neighbourhood be macro base station adjacent area in except described little base station
Other outer adjacent little base station；Described macro base station is the macro base station in described neighboring BS information.
Here, described little base station can be the little base station of LTE etc..
Described neighboring BS information may include that the frequency point information of neighbor base station, PCI and ECGI.
Wherein, for frequency point information and PCI, described little base station can be obtained by cell synchronization channels；Right
In ECGI, described little base station can be obtained by cell broadcast messages.
Owing to the PCI of the adjacent little base station of LTE must be different, handoff failure otherwise can be caused.Mutually
The LTE little base station PCI of interference must stagger by mould 3, pilot signal otherwise can be caused to interfere, affect number
According to business.
Based on this, the described PCI of not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station
Conflict, particularly as follows:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
The described PCI for not little with the special neighbourhood base station of PCI of described little base station distribution conflicts, particularly as follows:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
In one embodiment, as shown in Figure 6, this device can also comprise determining that unit 53, is used for determining
Macro base station adjacent area in described neighboring BS information；
Correspondingly, described allocation unit 52, when being additionally operable to as described little base station distribution PCI, utilization receives
Neighbor base station in the neighboring BS information of all little base stations evolved-UMTS land is wireless connects
Networking Cell Global Identifier ECGI and PCI, it is thus achieved that each described macro base station adjacent area except described little base station
The PCI of other outer adjacent little base station.
Wherein, described determine unit 53, specifically for:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
During actual application, this device is positioned in the Network Management Equipment of little base station system, by little base station system self certainly
The dynamic distribution realizing PCI, so, does not interferes with the normal operation of macro base station system.
Here, during actual application, owing to little base station and macro base station use alien frequencies to dispose, the least base station and Hong Ji
Stand and use different frequency, the most described determine that unit 53 can utilize frequency point information, determine described adjacent area
Macro base station adjacent area in information.Now can in advance the frequency that macro base station uses be stored to little base station system
For described, Network Management Equipment, determines that unit 53 utilizes frequency point information, determines the grand base in described neighboring BS information
Stand adjacent area.
During actual application, comparing little base station, the quantity of macro base station is fewer, so for ensureing performance of handoffs,
It is usually by manually configuring its macro base station adjacent area for little base station, the most described determines that unit 53 can utilize configuration
Neighboring BS relationship, determine the macro base station adjacent area in described neighboring BS information.
During actual application, can be that macro base station divides different ECGI scopes with little base station, so that institute
State and determine that unit 53 can determine institute according to the scope belonging to the ECGI of neighbor base station each in neighboring BS information
State the macro base station adjacent area in neighboring BS information.
During actual application, described reception unit 51 can be realized by the receiver in the device of distribution PCI, described
Allocation unit 52 can by the central processing unit (CPU, Central Processing Unit) in the device of PCI,
Microprocessor (MCU, Micro Control Unit), digital signal processor (DSP, Digital Signal
Processor) or programmable logic array (FPGA, Field-Programmable Gate Array) combine
Transceiver implementation；Described determine that unit 53 can be by CPU, MCU, DSP or the FPGA in the device of PCI
Realize.
The device of the distribution PCI that the embodiment of the present invention provides, described reception unit 51 receives what little base station sent
Neighboring BS information；Described allocation unit 52 utilizes described neighboring BS information, distributes PCI for described little base station；Wherein,
PCI for not medium and small with the described neighboring BS information base station of PCI of described little base station distribution conflicts, and not with specific
The PCI conflict of adjacent little base station, the little base station of described special neighbourhood be macro base station adjacent area in except described little base station
Other outer adjacent little base station；Described macro base station is the macro base station in described neighboring BS information, so, and can be automatically
Realize the distribution of little base station PCI, and the problem that PCI conflict can be effectively prevented from.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.And, the present invention can use and wherein include calculating one or more
The computer-usable storage medium of machine usable program code (includes but not limited to disk memory and optical storage
Device etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention
Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or side
Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frame
Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing device is to produce a machine so that by computer or other can
The instruction that the processor of programming data processing equipment performs produces for realizing in one flow process or multiple of flow chart
The device of the function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device
In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream
The function specified in journey and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention
Enclose.
Claims (10)
1. the method distributing Physical Cell Identifier PCI, it is characterised in that described method includes:
Receive the neighboring BS information that little base station sends；
Utilize described neighboring BS information, distribute PCI for described little base station；Wherein,
The PCI of not medium and small with the described neighboring BS information base station of PCI for the distribution of described little base station conflicts, and not with
The PCI conflict of the little base station of special neighbourhood；The little base station of described special neighbourhood be macro base station adjacent area in except described little
Other adjacent little base station outside base station；Described macro base station is the macro base station in described neighboring BS information.
Method the most according to claim 1, it is characterised in that described for described little base station distribution
The PCI of not medium and small with the described neighboring BS information base station of PCI conflicts, for:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
Method the most according to claim 1, it is characterised in that described for described little base station distribution
The PCI of not little with the special neighbourhood base station of PCI conflicts, for:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
Method the most according to claim 1, it is characterised in that described utilize described neighboring BS information, for
Before described little base station distribution PCI, described method also includes:
Determine the macro base station adjacent area in described neighboring BS information；
Correspondingly, during for described little base station distribution PCI, described method also includes:
Evolved-the universal mobile communications of the neighbor base station in the neighboring BS information of all little base station that utilization receives
System Terrestial wireless access network Cell Global Identifier ECGI and PCI, it is thus achieved that each described macro base station adjacent area
The PCI of other the adjacent little base station in addition to described little base station.
Method the most according to claim 4, it is characterised in that described determine in described neighboring BS information
Macro base station adjacent area, including:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
6. the device distributing PCI, it is characterised in that described device includes: receive unit and distribution is single
Unit；Wherein,
Described reception unit, for receiving the neighboring BS information that little base station sends；
Described allocation unit, is used for utilizing described neighboring BS information, distributes PCI for described little base station；Wherein,
PCI for not medium and small with the described neighboring BS information base station of PCI of described little base station distribution conflicts, and not with specific
The PCI conflict of adjacent little base station；The little base station of described special neighbourhood be macro base station adjacent area in except described little base station
Other outer adjacent little base station；Described macro base station is the macro base station in described neighboring BS information.
Device the most according to claim 6, it is characterised in that described for described little base station distribution
The PCI of not medium and small with the described neighboring BS information base station of PCI conflicts, for:
The PCI of PCI base station medium and small with described neighboring BS information for the distribution of described little base station differs, and with institute
The mould 3 of the PCI stating the medium and small base station of neighboring BS information differs.
Device the most according to claim 6, it is characterised in that described for described little base station distribution
The PCI of not little with the special neighbourhood base station of PCI conflicts, for:
PCI for the distribution of described little base station differs with the PCI of other adjacent little base station described.
Device the most according to claim 6, it is characterised in that described device also includes determining unit,
For determining the macro base station adjacent area in described neighboring BS information；
Correspondingly, described allocation unit, when being additionally operable to as described little base station distribution PCI, utilize the institute received
There is ECGI and PCI of neighbor base station in the neighboring BS information of little base station, it is thus achieved that each described macro base station adjacent area
The PCI of other the adjacent little base station in addition to described little base station.
Device the most according to claim 9, it is characterised in that described determine unit, specifically for:
Utilize the frequency point information of each neighbor base station in described neighboring BS information, determine the grand base in described neighboring BS information
Stand adjacent area；Or,
Utilize the neighboring BS relationship of configuration, determine the macro base station adjacent area in described neighboring BS information；Or,
Utilize the ECGI of each neighbor base station in described neighboring BS information, determine that the macro base station in described neighboring BS information is adjacent
District.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386786.XA CN106332098B (en) | 2015-06-30 | 2015-06-30 | Method and device for distributing physical cell identification |
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| CN201510386786.XA CN106332098B (en) | 2015-06-30 | 2015-06-30 | Method and device for distributing physical cell identification |
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| CN106332098B CN106332098B (en) | 2019-12-13 |
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| CN109587764A (en) * | 2018-12-30 | 2019-04-05 | 广东超讯通信技术股份有限公司 | A kind of method, small base station and the storage medium of small base station select frequency automatically |
| WO2023072074A1 (en) * | 2021-10-26 | 2023-05-04 | 中兴通讯股份有限公司 | Pci allocation method, base station, electronic device, and computer-readable storage medium |
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|---|---|
| CN106332098B (en) | 2019-12-13 |
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