CN102651876A - Method and system for realizing configuration of physics community identifications (PCI) - Google Patents
Method and system for realizing configuration of physics community identifications (PCI) Download PDFInfo
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- CN102651876A CN102651876A CN2011100446837A CN201110044683A CN102651876A CN 102651876 A CN102651876 A CN 102651876A CN 2011100446837 A CN2011100446837 A CN 2011100446837A CN 201110044683 A CN201110044683 A CN 201110044683A CN 102651876 A CN102651876 A CN 102651876A
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Abstract
The invention provides a method and a system for realizing configuration of physics community identifications (PCI). The method comprises the following steps that: a standard amount of PCIs are grouped by a management subsystem to form at least two subgroups; the PCIs used in an adjacent community are removed from the subgroups applied to a current community, and an available PCI list is generated; and the management subsystem sends the generated available PCI list to a base station to be selected by the community in the base station. According to the method and the system, the PCI configuration can be accurately realized in real time.
Description
Technical field
The present invention relates to radio network technique, relate in particular to the method and system that realize Physical Cell Identifier (PCI, Physical Cell Identifiers) configuration.
Background technology
In Long Term Evolution (LTE, Long Term Evolution) network, PCI plays an important role in switching, gravity treatment and reduction presence of intercell interference as the key mark of sub-district.In the LTE standard; The span of having stipulated PCI is 0-503, and 504 values, and each sub-district identifies with a PCI; Huge number of cells differs greatly in PCI number that this is limited and the wireless network, will inevitably cause a plurality of sub-districts to use the situation of identical PCI.
Because PCI is the sub-district important parameter; Quality of services for users and user's perception meeting are produced bigger influence; Therefore, carry out PCI configuration and need follow often that exempting from as follows conflicts/exempt from obscures condition: exempt from conflict, promptly current area can not be identical with the PCI of each neighbor cell; Exempt to obscure, promptly each neighbor cell PCI between any two of current area can not be identical.
Based on above-mentioned condition, existing P CI allocation plan comprises following two kinds:
Scheme 1:
Manual configuration: when promptly the sub-district is activated, artificial for activating PCI who meets the demands of sub-district appointment.
Scheme 2:
Automatically distribute an interim PCI: promptly distribute a provisional PCI for current area at random, send to affiliated base station, this sub-district, to guarantee that current area can outwards provide basic service by the ADMINISTRATION SUBSYSTEM in the network; Afterwards; UE in the base station notice current area scope measures, and obtains the PCI of the neighbor cell of current area, differentiates this provisional PCI by the base station and whether satisfies the condition of exempting to conflict/exempting to obscure; If do not satisfy; Then the request management subsystem is specified a new PCI for current area again, so back and forth, and till PCI meets the demands.Fig. 1 is evolved universal terrestrial radio access network (E-UTRAN; Evolved Universal Terrestrial Radio Access Network) topology diagram; Wherein, UE is connected with affiliated base station through air interface, can connect through X2 interface between base station and the base station; Automatic Neighboring Relation (ANR, Automatic Neighbour Relation) function is supported in the base station.
Existing P CI collocation method, method two can guarantee that the promptness of distributing, method one can guarantee the accuracy of distributing, but these two kinds of methods can not have both the requirement of accuracy and promptness simultaneously, even possibly affect greatly quality of wireless network.It is embodied in:
Scheme 1:
Manual assignment: the PCI of manual assignment is more accurate; Basically can guarantee to exempt from the requirement that conflicts and exempt to obscure, but because the artificial treatment mode strengthens O&M cost, and the promptness difficulty or ease guarantee; Especially after coming into operation in a large amount of family base stations, the mode of manual assignment will be difficult to meet the demands.
Scheme 2:
Automatically distribute an interim PCI: this method is carried out Random assignment by ADMINISTRATION SUBSYSTEM, need not manual configuration, can in time realize distributing; But owing to need to obtain the information of neighbor cell PCI by the measurement of a large amount of UE in the network; And the PCI of each sub-district selects from 504 standard PCI at random at random; If the provisional PCI that selects does not at random meet the demands; Before it was differentiated renewal, this provisional PCI was inaccurate, can cause network to have a strong impact on so.
It is thus clear that there is the defective that can not have both accuracy and promptness simultaneously in existing P CI allocation plan.
Summary of the invention
The invention provides a kind of method of the PCI of realization configuration, this method can be carried out the PCI configuration in time, exactly.
The invention provides a kind of realization PCI system configured, this system can carry out the PCI configuration in time, exactly.
The invention provides a kind of ADMINISTRATION SUBSYSTEM, this ADMINISTRATION SUBSYSTEM can carry out the PCI configuration in time, exactly.
A kind of method that realizes the PCI configuration, this method comprises:
ADMINISTRATION SUBSYSTEM divides into groups to the PCI of standard quantity, forms at least two groupings;
ADMINISTRATION SUBSYSTEM is rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist;
ADMINISTRATION SUBSYSTEM sends to the base station with the PCI freelist that generates, and supplies the sub-district under the base station to select.
A kind of realization PCI system configured, this system comprises ADMINISTRATION SUBSYSTEM and base station;
Said ADMINISTRATION SUBSYSTEM is used for the PCI of standard quantity is divided into groups, and forms at least two groupings; ADMINISTRATION SUBSYSTEM is also rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist, and the PCI freelist that generates is sent to the base station;
Said base station is used for the PCI freelist that the receiving management subsystem sends, and supplies the sub-district under the base station to select.
A kind of ADMINISTRATION SUBSYSTEM, this ADMINISTRATION SUBSYSTEM comprise packet configuration unit, freelist generation unit and freelist transmitting element;
Said packet configuration unit is used for the PCI of standard quantity is divided into groups, and forms at least two groupings;
Said freelist generation unit is used for rejecting the neighbor cell PCI of usefulness from the grouping that current area is suitable for, and generates the PCI freelist, sends to said freelist transmitting element;
Said freelist transmitting element is used for the PCI freelist is sent to the base station, supplies the sub-district under the base station to select.
Can find out that from such scheme the present invention is configured by ADMINISTRATION SUBSYSTEM, need not manual configuration, can in time realize distributing.And ADMINISTRATION SUBSYSTEM is divided at least two groupings with the PCI of standard quantity, to dwindle the scope of each cell selecting PCI, reduces to conflict mutually, obscure the probability of sub-district, has improved the accuracy of PCI; And ADMINISTRATION SUBSYSTEM is also rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist, selects for the sub-district under the base station, has further improved the accuracy of PCI.Like this, the present invention program has realized in time, has carried out exactly the PCI configuration.
Description of drawings
Fig. 1 is the E-UTRAN topology diagram;
Fig. 2 realizes the method indicative flowchart of PCI configuration for the present invention;
Fig. 3 realizes the method flow diagram instance of PCI configuration for the present invention;
Fig. 4 realizes PCI system configured structural representation for the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, to further explain of the present invention.
The present invention is configured by ADMINISTRATION SUBSYSTEM, need not manual configuration, can in time realize distributing.Referring to Fig. 2, for the present invention realizes the method indicative flowchart that PCI disposes, this method may further comprise the steps:
For the LTE system, said standard quantity is 504.
Particularly, ADMINISTRATION SUBSYSTEM can divide into groups according to certain rule, for example, according to base station type or cell frequency, the PCI of standard quantity is divided into groups.
Illustrate with the LTE system; If divide into groups by base station type, the base station type of sub-district comprises two kinds of macro base station and family base stations, then 504 PCI is divided into two groups; The sub-district of macro base station is suitable for one of them divides into groups, and the sub-district of family base station is suitable for another grouping.
Store the positional information of each sub-district in the ADMINISTRATION SUBSYSTEM, which neighbor cell from this information, can obtain the current area periphery has; And ADMINISTRATION SUBSYSTEM has also been stored each sub-district PCI of usefulness.
Afterwards, a PCI just can be selected for respective cell in the base station from the PCI freelist, activate this sub-district, and will report to ADMINISTRATION SUBSYSTEM for the PCI of this cell selecting.
Among the present invention, ADMINISTRATION SUBSYSTEM is divided at least two groupings with the PCI of standard quantity, to dwindle the scope of each cell selecting PCI, reduces to conflict mutually, obscure the probability of sub-district, has improved the accuracy of PCI; And ADMINISTRATION SUBSYSTEM is also rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist, selects for the sub-district under the base station, has further improved the accuracy of PCI.Like this, the present invention program has realized in time, has carried out exactly the PCI configuration.
For the probability that further reduces to conflict, obscure, after the flow process of Fig. 2, also can further improve the accuracy of PCI configuration, for example, can adopt following dual mode.
Mode one:
Current base station under the current area is obtained the neighboring BS information of current area, and said neighboring BS information comprises the PCI of each first order neighbor cell.Said neighboring BS information can comprise the E-UTRAN Cell Global Identifier (ECGI, E-UTRAN Cell Global Identifier) of each neighbor cell, comes from which sub-district to identify it.
Current base station under the current area is carried out as judging according to neighboring BS information:
The PCI of current area and the PCI of each first order neighbor cell are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of each first order neighbor cell of current area is compared in twos,, then notify among both the base station under the simple first order neighbor cell of neighboring BS relationship to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect if identical.According to the characteristics of X2 interface, current base station can through and each first order neighbor cell under X2 interface between the base station, obtain the neighboring BS relationship of first order neighbor cell; The simple first order neighbor cell of neighboring BS relationship, the first order neighbor cell that just the adjacent area number is little.Said notice ADMINISTRATION SUBSYSTEM carries out PCI to be reselected, and just, confirms from both, to determine a first order neighbor cell by ADMINISTRATION SUBSYSTEM, notifies the affiliated base station of determining of first order neighbor cell to carry out PCI then and reselects.
In this mode, the base station can adopt several different methods to obtain the neighboring BS information of current area, and for example: the UE in the notice current area of base station scans, and obtains the information of first order neighbor cell.Said first order neighbor cell, just with the adjacent sub-district of current area, other minizone of middle nothing is separated.
Mode two:
Current base station under the current area is obtained the neighboring BS information of current area through X2 interface; Said neighboring BS information comprises the potential neighbor cell of each first order of current area and the PCI of the potential neighbor cell in the second level; The potential neighbor cell of the said first order is each sub-district of the adjacent base station subordinate of current base station; The adjacent base station of said current base station is a first order adjacent base station; Just with the adjacent base station of current base station, middle do not have other base station at interval, and the potential neighbor cell in the said second level is the neighbor cell of each sub-district of said first order adjacent base station subordinate.According to the characteristics of X 2 interface between base stations, through X2 interface, each base station can obtain and preserve the PCI of each sub-district of its adjacent base station subordinate, and each base station can also provide the PCI of each each sub-district of adjacent base station subordinate of its preservation according to request.Said neighboring BS information can also comprise the identification information of potential neighbor cell of each first order and the potential neighbor cell in the second level, to identify which sub-district which base station it comes from.In this mode,, the base station under the current area is called current base station for the ease of explanation.
Current base station under the current area is carried out as judging according to neighboring BS information:
The PCI of current area and the PCI of the potential neighbor cell of each first order are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of the potential neighbor cell of each first order of current area is compared in twos; If it is identical; Then notify base station under the potential neighbor cell of the simple first order of neighboring BS relationship among both to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect;
The PCI of current area and the PCI of its potential neighbor cell in second level are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical.
Mode one can be selected a utilization separately with mode two, also can merge utilization together.
Through the instance of Fig. 3 the present invention is realized that the method for PCI configuration describes below, the flow process of Fig. 3 may further comprise the steps:
Step 301, ADMINISTRATION SUBSYSTEM are carried out PCI and are divided into groups.
ADMINISTRATION SUBSYSTEM divides into groups to 504 PCI, and the method for grouping can be according to base station type, cell frequency etc.
Divide into groups according to base station type, help when PCI clash, when obscuring, affected sub-district is limited in the controlled scope, prevents that large tracts of land, big quantity sub-district from all changing the risk of PCI.As: the PCI that is used for macro base station is divided into one group, and the PCI that is used for family base station is divided into one group, like this, even PCI is frequently changed in family base station, also can not exert an influence to macro base station.
Divide into groups according to frequency, can avoid the identical situation of different frequency sub-district PCI; Conflict, when obscuring, can only verify homogeneous-frequency adjacent-domain in checking.
Step 302, ADMINISTRATION SUBSYSTEM are rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist.
Then, ADMINISTRATION SUBSYSTEM sends to the current base station under the sub-district of waiting to activate with the PCI freelist that generates.
The PCI freelist need comprise more than one PCI, is clashing, when obscuring, can be current area and in time change other available PCI guaranteeing.Under the extreme case, as the PCI freelist that obtains can be divided into groups by the PCI that the keeper is suitable for current area to adjust for empty.
Step 303, the current base station of waiting to activate under the sub-district is selected a PCI at random from the PCI freelist, activate the sub-district.
Afterwards, the base station can be activated the PCI that uses the sub-district and conflict, obscures detection each, is specially step 304 to 306.
The base station obtains the first order adjacent cell information of current area under the step 304, current area.
Said current area sub-district just current to be activated, the affiliated base station of current area is current base station just, and said first order adjacent cell information comprises the PCI of each first order neighbor cell.
Step 305, ADMINISTRATION SUBSYSTEM are obtained first and the potential adjacent cell information of secondary of current area.
Said first with the potential adjacent cell information of secondary comprise the potential neighbor cell of each first order of current area and the PCI of the potential neighbor cell in the second level.Current base station is obtained first and the potential adjacent cell information of secondary of current area through X2 interface; The potential neighbor cell of the said first order is each sub-district of the adjacent base station subordinate of current base station; The adjacent base station of said current base station is a first order adjacent base station, and the potential neighbor cell in the said second level is the neighbor cell of each sub-district of said first order adjacent base station subordinate.Here, the PCI that obtains the potential neighbor cell of two-stage compares, and can further reduce conflict, obscure the probability of happening of situation.
Step 304 is conflicted, obscures the foundation of detection to 305 as step 306.
Step 306, current base station are carried out the PCI conflict, are obscured detection, and revise.
This step specifically comprises:
The PCI of current area and the PCI of each first order neighbor cell are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of each first order neighbor cell of current area is compared in twos,, then notify among both the base station under the simple first order neighbor cell of neighboring BS relationship to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect if identical;
The PCI of current area and the PCI of the potential neighbor cell of each first order are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of the potential neighbor cell of each first order of current area is compared in twos; If it is identical; Then notify base station under the potential neighbor cell of the simple first order of neighboring BS relationship among both to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect;
The PCI of current area and the PCI of its potential neighbor cell in second level are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical.
Referring to Fig. 4, be a kind of realization PCI system configured structural representation provided by the invention, this system comprises ADMINISTRATION SUBSYSTEM and base station;
Said ADMINISTRATION SUBSYSTEM is used for the PCI of standard quantity is divided into groups, and forms at least two groupings; ADMINISTRATION SUBSYSTEM is rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist, and the PCI freelist that generates is sent to the base station;
Said base station is used for the PCI freelist that the receiving management subsystem sends, and supplies the sub-district under the base station to select.
Alternatively, said ADMINISTRATION SUBSYSTEM comprises packet configuration unit, freelist generation unit and freelist transmitting element;
Said packet configuration unit is used for the PCI of standard quantity is divided into groups, and forms at least two groupings;
Said freelist generation unit is used for rejecting the neighbor cell PCI of usefulness from the grouping that current area is suitable for, and generates the PCI freelist, sends to said freelist transmitting element;
Said freelist transmitting element is used for the PCI freelist is sent to the base station, selects for the sub-district under the base station.
Alternatively, said base station comprises that the first neighboring BS information acquiring unit and first detects amending unit;
The said first neighboring BS information acquiring unit is used to obtain the neighboring BS information of current area, and said neighboring BS information comprises the PCI of each first order neighbor cell;
Said first detects amending unit, is used for the PCI of current area and the PCI of each first order neighbor cell are compared, if both are identical, then from the PCI freelist of current area, reselects PCI for current area;
The PCI of each first order neighbor cell of current area is compared in twos,, then notify among both the base station under the simple first order neighbor cell of neighboring BS relationship to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect if identical.
Alternatively, said base station comprises that the second neighboring BS information acquiring unit and second detects amending unit;
The said second neighboring BS information acquiring unit; Be used for obtaining the neighboring BS information of current area through X2 interface; Said neighboring BS information comprises the potential neighbor cell of each first order of current area and the PCI of the potential neighbor cell in the second level; The potential neighbor cell of the said first order is each sub-district of the adjacent base station subordinate of current base station, and the adjacent base station of said current base station is a first order adjacent base station, and the potential neighbor cell in the said second level is the neighbor cell of each sub-district of said first order adjacent base station subordinate;
Said second detects amending unit, is used for the PCI of current area and the PCI of the potential neighbor cell of each first order are compared, if both are identical, then from the PCI freelist of current area, reselects PCI for current area;
The PCI of the potential neighbor cell of each first order of current area is compared in twos; If it is identical; Then notify base station under the potential neighbor cell of the simple first order of neighboring BS relationship among both to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect;
The PCI of current area and the PCI of its potential neighbor cell in second level are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical.
The present invention can be applicable to the LTE network, and the network of other similar structures.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. method that realizes Physical Cell Identifier PCI configuration is characterized in that this method comprises:
ADMINISTRATION SUBSYSTEM divides into groups to the PCI of standard quantity, forms at least two groupings;
ADMINISTRATION SUBSYSTEM is rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist;
ADMINISTRATION SUBSYSTEM sends to the base station with the PCI freelist that generates, and supplies the sub-district under the base station to select.
2. the method for claim 1 is characterized in that, said ADMINISTRATION SUBSYSTEM sends to the PCI freelist that generates after the base station, and this method also comprises:
Current base station under the current area is obtained the neighboring BS information of current area, and said neighboring BS information comprises the PCI of each first order neighbor cell;
Current base station under the current area is carried out as judging according to neighboring BS information:
The PCI of current area and the PCI of each first order neighbor cell are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of each first order neighbor cell of current area is compared in twos,, then notify among both the base station under the simple first order neighbor cell of neighboring BS relationship to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect if identical.
3. method as claimed in claim 2 is characterized in that, the method that said base station obtains the first order neighboring BS information of current area comprises:
UE in the notice current area of base station scans, and obtains the information of first order neighbor cell.
4. the method for claim 1 is characterized in that, said ADMINISTRATION SUBSYSTEM sends to the PCI freelist that generates after the base station, and this method also comprises:
Current base station under the current area is obtained the neighboring BS information of current area through X2 interface; Said neighboring BS information comprises the potential neighbor cell of each first order of current area and the PCI of each potential neighbor cell in the second level; The potential neighbor cell of the said first order is each sub-district of the adjacent base station subordinate of current base station; The adjacent base station of said current base station is a first order adjacent base station, and the potential neighbor cell in the said second level is the neighbor cell of each sub-district of said first order adjacent base station subordinate;
Current base station under the current area is carried out as judging according to neighboring BS information:
The PCI of current area and the PCI of the potential neighbor cell of each first order are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical;
The PCI of the potential neighbor cell of each first order of current area is compared in twos; If it is identical; Then notify base station under the potential neighbor cell of the simple first order of neighboring BS relationship among both to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect;
The PCI of current area and the PCI of its potential neighbor cell in second level are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical.
5. like each described method in the claim 1 to 4, it is characterized in that said ADMINISTRATION SUBSYSTEM divides into groups to comprise to the PCI of standard quantity: ADMINISTRATION SUBSYSTEM is according to base station type or cell frequency, and the PCI of standard quantity is divided into groups.
6. realize the PCI system configured for one kind, it is that this system comprises ADMINISTRATION SUBSYSTEM and base station;
Said ADMINISTRATION SUBSYSTEM is used for the PCI of standard quantity is divided into groups, and forms at least two groupings; ADMINISTRATION SUBSYSTEM is also rejected the neighbor cell PCI of usefulness from the grouping that current area is suitable for, generate the PCI freelist, and the PCI freelist that generates is sent to the base station;
Said base station is used for the PCI freelist that the receiving management subsystem sends, and supplies the sub-district under the base station to select.
7. system as claimed in claim 6 is characterized in that, said ADMINISTRATION SUBSYSTEM comprises packet configuration unit, freelist generation unit and freelist transmitting element;
Said packet configuration unit is used for the PCI of standard quantity is divided into groups, and forms at least two groupings;
Said freelist generation unit is used for rejecting the neighbor cell PCI of usefulness from the grouping that current area is suitable for, and generates the PCI freelist, sends to said freelist transmitting element;
Said freelist transmitting element is used for the PCI freelist is sent to the base station, selects for the sub-district under the base station.
8. system as claimed in claim 7 is characterized in that, said base station comprises that the first neighboring BS information acquiring unit and first detects amending unit;
The said first neighboring BS information acquiring unit is used to obtain the neighboring BS information of current area, and said neighboring BS information comprises the PCI of each first order neighbor cell;
Said first detects amending unit, is used for the PCI of current area and the PCI of each first order neighbor cell are compared, if both are identical, then from the PCI freelist of current area, reselects PCI for current area; The PCI of each first order neighbor cell of current area is compared in twos,, then notify among both the base station under the simple first order neighbor cell of neighboring BS relationship to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect if identical.
9. system as claimed in claim 7 is characterized in that, said base station comprises that the second neighboring BS information acquiring unit and second detects amending unit;
The said second neighboring BS information acquiring unit; Be used for obtaining the neighboring BS information of current area through X2 interface; Said neighboring BS information comprises the potential neighbor cell of each first order of current area and the PCI of each potential neighbor cell in the second level; The potential neighbor cell of the said first order is each sub-district of the adjacent base station subordinate of current base station, and the adjacent base station of said current base station is a first order adjacent base station, and the potential neighbor cell in the said second level is the neighbor cell of each sub-district of said first order adjacent base station subordinate;
Said second detects amending unit, is used for the PCI of current area and the PCI of the potential neighbor cell of each first order are compared, if both are identical, then from the PCI freelist of current area, reselects PCI for current area; The PCI of the potential neighbor cell of each first order of current area is compared in twos; If it is identical; Then notify base station under the potential neighbor cell of the simple first order of neighboring BS relationship among both to carry out PCI and reselect, perhaps notify ADMINISTRATION SUBSYSTEM to carry out PCI and reselect; The PCI of current area and the PCI of its potential neighbor cell in second level are compared,, then from the PCI freelist of current area, reselect PCI for current area if both are identical.
10. an ADMINISTRATION SUBSYSTEM of realizing PCI is characterized in that, this ADMINISTRATION SUBSYSTEM comprises packet configuration unit, freelist generation unit and freelist transmitting element;
Said packet configuration unit is used for the PCI of standard quantity is divided into groups, and forms at least two groupings;
Said freelist generation unit is used for rejecting the neighbor cell PCI of usefulness from the grouping that current area is suitable for, and generates the PCI freelist, sends to said freelist transmitting element;
Said freelist transmitting element is used for the PCI freelist is sent to the base station, supplies the sub-district under the base station to select.
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| CN103200582A (en) * | 2013-03-12 | 2013-07-10 | 中兴通讯股份有限公司 | Method and device for arrangement of physical cellular identities |
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| WO2016045337A1 (en) * | 2014-09-28 | 2016-03-31 | 中兴通讯股份有限公司 | Physical cell id allocation method, device and system |
| CN105792162A (en) * | 2014-12-24 | 2016-07-20 | 成都鼎桥通信技术有限公司 | Cell parameter configuration method in mobile communication system and mobile base station |
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| CN105247916A (en) * | 2013-05-29 | 2016-01-13 | 日本电气株式会社 | Wireless communication system, base station, and control method therefor |
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| CN103945397A (en) * | 2014-04-02 | 2014-07-23 | 京信通信系统（中国）有限公司 | Method, device and system for scale networking adjacent region configuration |
| WO2016045337A1 (en) * | 2014-09-28 | 2016-03-31 | 中兴通讯股份有限公司 | Physical cell id allocation method, device and system |
| CN105530646B (en) * | 2014-09-28 | 2019-05-07 | 中兴通讯股份有限公司 | Physical Cell Identifier distribution method, apparatus and system |
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