CN102740300A

CN102740300A - Automatic distribution method and device of physical-layer cell identities (PCIs)

Info

Publication number: CN102740300A
Application number: CN2012102204682A
Authority: CN
Inventors: 韩小琴
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2012-10-17
Anticipated expiration: 2032-06-29
Also published as: CN102740300B

Abstract

The invention provides an automatic distribution method and device of physical-layer cell identities (PCIs). The method comprises the following steps of: calculating the multiplexing coefficients of cells to be distributed with the PCIs and all cells using the PCIs already to each of a plurality of PCIs respectively, wherein the multiplexing coefficients are used for representing the relative position relationships of a first cell to be distributed with the PCI and the cells using the PCIs already; determining the maximum multiplexing coefficient of each PCI; and selecting a preset number of PCIs to the cells from the PCIs according to the descending sequence of all the determined maximum multiplexing coefficients. According to the automatic distribution method and device of the PCIs, the problems of high distribution error rate of PCIs and high network operation and maintenance cost in a related technology are solved, so that the probability of errors is lowered, and the reliability of network distribution is enhanced. Meanwhile, the human input of network planning and network optimization is reduced, and the operation and maintenance cost of an operator is lowered.

Description

The auto-allocation method of physical-layer cell identifier and device

Technical field

The present invention relates to the communications field, in particular to the auto-allocation method and the device of a kind of physical-layer cell identifier (Physical Cell Identity abbreviates PCI as).

Background technology

The sub-district physical label is L1 sign (Phy-CID in other words; Physical Cell Identity; Abbreviate PCI as) be the important configuration parameters of wireless area in Long Term Evolution (Long-Term Evolution the abbreviates LTE as) system, have 504 sub-district physical labels.And the quantity of wireless area will be far longer than the scope of PCI sign, and therefore, the PCI between the sub-district is multiplexing to be exactly inevitable.But regulation PCI can not conflict, obscure in third generation mobile gpp (3rd Generation partnership project the abbreviates 3GPP as) technical specification; Wherein, conflict is that the PCI of two neighbor cells is identical, and the PCI that obscures two neighbor cells that promptly refer to a sub-district is identical; Otherwise subscriber equipment (User Equipment; Abbreviate UE as) can't discern the sub-district, therefore, multiplexing just need the following of PCI do not have conflict, aliasing free principle.If PCI is not within scope or do not have sub-district PCI, then the base station can't provide professional.How to accomplish the multiplexing of PCI efficiently, when guaranteeing not have conflict, obscuring, saving the PCI resource is the problem that need solve in the LTE system.Present method all is that the method for employing artificial planning is the good PCI of base station planning, and the PCI of planning need guarantee can not conflict, can not obscure.Clashing, needing when obscuring network optimization personnel to carry out the optimization of PCI again.Yet the sub-district is numerous in the network, adopts artificial planning PCI, can increase probability of errors, reduces the reliability of arranging net, and simultaneously, the human input of network planning network optimization is big, improves the O&M cost of operator.

To above-mentioned problem one of at least in the correlation technique, effective solution is not proposed as yet at present.

Summary of the invention

The invention provides a kind of auto-allocation method and device of physical-layer cell identifier, with the problem that the distribution error rate is high, the network O&M cost is high that solves PCI in the correlation technique at least.

According to an aspect of the present invention; The auto-allocation method of a kind of PCI is provided; It comprises: for each PCI among a plurality of PCI; Calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively, wherein, reuse is used to represent sub-district and the relative position relation that uses the sub-district of this PCI; Confirm the maximum multiplexing coefficient of each PCI; From a plurality of PCI, select a preset number PCI to give the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining.

Preferably; For each PCI among a plurality of PCI; Calculate respectively before the reuse of the sub-district of PCI to be allocated and all sub-districts of having used this PCI, the auto-allocation method of above-mentioned PCI also comprises: from untapped PCI, select one or more PCI to give the sub-district.

Preferably, calculate the reuse of all sub-districts of using this PCI according to one of following information: used the distance between the sub-district of all sub-districts and PCI to be allocated of this PCI; Use the distance between the sub-district of all sub-districts and PCI to be allocated of this PCI and used all sub-districts of this PCI and the relative angle weights between the sub-district.

Preferably; Calculate the reuse of all sub-districts of using this PCI: R=D+K*A according to following formula; Wherein, R is for using the reuse of all sub-districts of this PCI, and D is for using all sub-districts of this PCI and the distance between the sub-district; A is pre-configured value for using all sub-districts of this PCI and the relative angle weights between the sub-district, K.

Preferably, a plurality of PCI are the PCI except the PCI that produces conflict or obscure.

Preferably, all sub-districts are the sub-district with the identical frequency in sub-district.

Preferably; From a plurality of PCI, selecting a preset number PCI to after the above-mentioned sub-district according to the order from big to small of all maximum multiplexing coefficients of determining; The auto-allocation method of above-mentioned PCI also comprises: preset number greater than 1 situation under, a preset number PCI and/or the PCI that from untapped PCI, selects are sent to the base station under the sub-district; The base station is PCI of above-mentioned cell selecting from the untapped PCI of a preset number PCI and/or selection.

Preferably, the auto-allocation method of above-mentioned PCI also comprises: the base station is detected through the user mode that X2 sets up and X2 upgrades PCI; Detect in the base station under the situation of sub-district of PCI to be allocated, the base station is available PCI of above-mentioned cell selecting according to testing result from a preset number PCI and or the PCI that from untapped PCI, selects, and the result that will select reports webmaster.

Preferably; For each PCI among a plurality of PCI; Webmaster calculates the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively, and wherein, reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI; Webmaster is confirmed the maximum multiplexing coefficient of each PCI; Webmaster selects a preset number PCI to give the sub-district from a plurality of PCI according to the order from big to small of all maximum multiplexing coefficients of determining.

Preferably; From a plurality of PCI, select a preset number PCI to after the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining at webmaster; The auto-allocation method of above-mentioned PCI also comprises: be that webmaster will send to the network element of this sub-district for the PCI of above-mentioned cell allocation under 1 the situation in preset number.

Preferably, the auto-allocation method of above-mentioned PCI also comprises: the base station is detected through the user mode that X2 sets up and X2 upgrades PCI; Be under 1 the situation in preset number, and detect in the base station under the situation of sub-district of PCI to be allocated that the base station reports webmaster with testing result, webmaster is above-mentioned cell allocation PCI according to testing result.

Preferably; Webmaster comprises for cell allocation PCI according to testing result: webmaster confirm testing result be clash or situation about obscuring under; Webmaster is selected the sub-district of a sub-district as PCI to be allocated from the sub-district centering that clashes or obscure; Wherein, this sub-district clashes for sub-district centering or to obscure number of times maximum, and a minimum sub-district of call setup number; Webmaster is this cell allocation PCI.

Preferably, the auto-allocation method of above-mentioned PCI also comprises: the base station is detected through the user mode that X2 sets up and X2 upgrades PCI; Preset number greater than 1 situation under, and detect the sub-district in the base station and do not have under the situation of available PCI, the base station reports webmaster with testing result, webmaster is that PCI is redistributed in above-mentioned sub-district according to testing result.

Preferably, webmaster is after the above-mentioned cell allocation PCI, and the auto-allocation method of above-mentioned PCI also comprises: webmaster will for the PCI information exhibition of above-mentioned cell allocation in the self-organizing network monitoring; Webmaster issues the PCI into this cell allocation after receiving the instruction of confirming to continue.

Preferably, webmaster is after the cell allocation PCI, and the auto-allocation method of above-mentioned PCI also comprises: webmaster will for the PCI information exhibition of above-mentioned cell allocation in the self-organizing network monitoring; Webmaster issues the PCI into this cell allocation.

According to a further aspect in the invention; The automatic allocation device of a kind of PCI is provided; It comprises: computing module, be used for each PCI to a plurality of PCI, and calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively; Wherein, reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI; Determination module is used for confirming the maximum multiplexing coefficient of each PCI; Distribution module is used for selecting a preset number PCI to give above-mentioned sub-district according to the order from big to small of all maximum multiplexing coefficients of determining from a plurality of PCI.

In the present invention, for each PCI among a plurality of PCI, calculate the sub-district of PCI to be allocated respectively and used the reuse between first sub-district of all sub-districts and PCI to be allocated of this PCI; This reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI, and reuse is high more, and reliability is high more; The probability that promptly clashes, obscures is more little, then, confirms the maximum multiplexing coefficient of each PCI; At last, from a plurality of PCI, select a preset number PCI to give the sub-district, with the reliability of the PCI that guarantees to greatest extent to distribute according to the order from big to small of all maximum multiplexing coefficients of determining; Distribute probability of errors thereby reduce PCI, improve the reliability of arranging net, simultaneously; Reduce the human input of network planning network optimization, reduced the O&M cost of operator.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart according to the auto-allocation method of the PCI of the embodiment of the invention;

Fig. 2 is the structured flowchart according to the automatic allocation device of the PCI of the embodiment of the invention;

Fig. 3 is the flow chart according to the auto-allocation method of the another kind of PCI of the embodiment of the invention;

Fig. 4 is the flow chart according to the automatic method of distributing of PCI tabulation of the embodiment of the invention;

Fig. 5 is according to the embodiment of the invention and interaction diagrams SON monitoring;

Fig. 6 is the structured flowchart according to the distributor of the another kind of PCI of the embodiment of the invention;

Fig. 7 is the sketch map according to the relativeness of the deflection of two sub-districts of use in the PCI distribution of the embodiment of the invention;

Fig. 8 is the flow chart according to the PCI original allocation of the embodiment of the invention;

Fig. 9 is the process chart according to the conflict confusion message of the embodiment of the invention; And

Figure 10 is according to the PCI invalid value of the embodiment of the invention or the process chart of unallocated PCI.

Embodiment

Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.

Present embodiment provides the auto-allocation method of a kind of PCI, and is as shown in Figure 1, and the auto-allocation method of this PCI comprises that step S102 is to step S106.

Step S102: for each PCI among a plurality of PCI; Calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively; Wherein, reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI.

Step S104: the maximum multiplexing coefficient of confirming each PCI.

Step S106: from a plurality of PCI, select a preset number PCI to give the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining.

Through above-mentioned steps,, calculate the reuse between the sub-district of all sub-districts used this PCI and PCI to be allocated respectively for each PCI among a plurality of PCI; This reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI, and reuse is high more, and reliability is high more; It is more little promptly to clash the probability of obscuring, and then, confirms the maximum multiplexing coefficient of each PCI; At last, from a plurality of PCI, select a preset number PCI to give the sub-district, with the reliability of the PCI that guarantees to greatest extent to distribute according to the order from big to small of all maximum multiplexing coefficients of determining; Distribute probability of errors thereby reduce PCI, improve the reliability of arranging net, simultaneously; Reduce the human input of network planning network optimization, reduced the O&M cost of operator.

Preferably, before the distribution of carrying out above-mentioned PCI, obtain the cell information of the sub-district of PCI to be allocated earlier; For example; Information such as sub-district ID, frequency, longitude and latitude, deflection and former PCI value, and the above-mentioned cell information that has used the sub-district of this PCI, for example; Information such as sub-district ID, frequency, longitude and latitude and deflection are so that calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI exactly.

Preferably, the distribution method of above-mentioned PCI can be used under the scene of untapped PCI not having, and also can use existing under the scene of untapped PCI, has satisfied the demand of different application scene.

For improving the efficient that PCI distributes; Improve the reliability that PCI distributes; In this preferred embodiment; For each PCI among a plurality of PCI, calculate respectively before the reuse of the sub-district of PCI to be allocated and all sub-districts of having used this PCI, from untapped PCI, select one or more PCI to give the sub-district of above-mentioned PCI to be allocated.When having untapped PCI among all PCI (being existing 504 PCI), preferentially from untapped PCI cell selecting PCI promptly.For example, under the scene that is a PCI of above-mentioned cell allocation, preferentially judge whether to exist untapped PCI; If exist; Then can in untapped PCI, select a PCI to give above-mentioned sub-district, if do not exist, then through coming to be cell allocation PCI according to reuse in the auto-allocation method of above-mentioned PCI; At this moment, above-mentioned preset number is 1; When being that above-mentioned sub-district estimates to distribute under the scene of a plurality of PCI, preferentially judge whether to exist untapped PCI, if exist; Whether the number of the untapped PCI that judge to exist again greater than the number of estimating to distribute PCI, if greater than, then can directly be that above-mentioned cell selecting is estimated an individual PCI from untapped PCI; Candidate PCI as the sub-district; If fruit less than, then can select whole untapped PCI after, again through being cell selecting PCI according to reuse in the distribution method of above-mentioned PCI; At this moment, above-mentioned preset number is the number that the number that is expected to be cell allocation PCI deducts the untapped PCI that has selected.

Preferably; Also can not judge whether to exist untapped PCI, directly through coming to be cell selecting PCI according to reuse in the distribution method of above-mentioned PCI, at this moment; If be expected to be 1 PCI of cell allocation; Then preset number is 1, distributes a plurality of PCI if be expected to be PCI, and then above-mentioned preset number is identical with the number of expectation.

For improving the reliability that PCI distributes, in this preferred embodiment, calculate the reuse of all sub-districts of using this PCI according to one of following information: used all sub-districts of this PCI and the distance between the sub-district; Use all sub-districts and the distance between the sub-district of this PCI and used all sub-districts of this PCI and the relative angle weights between the sub-district.

In above-mentioned preferred embodiment; The number of untapped PCI that can in all PCI, not have untapped PCI or existence is less than need be for the number of the PCI of cell allocation the time; Calculate all sub-districts of using this PCI and the reuse of PCI to be allocated sub-district through above-mentioned information; Guarantee the reliability that PCI distributes, reduced the probability that PCI conflict occurs, obscures.

Preferably, in the process of the reuse of calculating all sub-districts of using this PCI and PCI to be allocated sub-district through above-mentioned information, can adopt following mode to realize; R=D+K*A; Wherein, R is for using the reuse of all sub-districts of this PCI, and D is for using all sub-districts of this PCI and the distance between the above-mentioned sub-district; A is pre-configured value for using all sub-districts of this PCI and the relative angle weights between the above-mentioned sub-district, K.

In order to improve the reliability that PCI distributes further; In this preferred embodiment; Above-mentioned a plurality of PCI is the PCI except the PCI that produces conflict or obscure, and promptly above-mentioned a plurality of PCI are the parts among all PCI, for example; Above-mentioned a plurality of PCI is that all PCI deduct the PC that produces conflict or obscure, to improve the reliability that PCI distributes effectively.

For distributing PCI exactly, effectively, in this preferred embodiment, above-mentioned all sub-districts of having used a plurality of PCI for the sub-district of the identical frequency in sub-district.

In order to satisfy the demand of different application scene; In this preferred embodiment; From a plurality of PCI, selecting a preset number PCI to after the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining; Preset number greater than 1 situation under, a preset number PCI and/or the PCI that from untapped PCI, selects are sent to the base station under the sub-district; The base station from the untapped PCI of a preset number PCI and/or selection (for example; When directly being a plurality of subsequent use PCI of above-mentioned cell selecting from untapped PCI; Then be from the untapped PCI that selects, to use for PCI of cell selecting; Selecting through reuse under the situation of PCI at the direct said method of using, then is from a preset number PCI, to use for PCI of above-mentioned cell selecting, if there is untapped PCI; And under the situation of the number of untapped PCI less than the number of the above-mentioned subsequent use PCI in sub-district; Then earlier from untapped PCI, select PCI, select PCI through the reuse in the said method again, use for PCI of above-mentioned cell selecting this moment from the untapped PCI of a preset number PCI and selection) be PCI of cell selecting.Promptly behind the base station under a preset number PCI and/or the PCI that from untapped PCI, selects being sent to the sub-district; Use for PCI of cell selecting from the PCI of distributing by the base station; Realized that to a plurality of subsequent use PCI of cell allocation the i.e. distributed allocation of PCI is in the time of need reselecting the PCI of use in this sub-district; A PCI can be reselected for the sub-district in the base station from above-mentioned subsequent use PCI; For example, in network operation process, when the base station detects above-mentioned sub-district and need reselect PCI and use (for example; Detect the sub-district of conflict, the sub-district of obscuring, PCI inefficacy etc.), a PCI then can directly be reselected for this sub-district in the base station from above-mentioned subsequent use PCI.

In order to ensure the user mode of the PCI of network cell, in this preferred embodiment, the auto-allocation method of above-mentioned PCI also comprises: the base station is set up with the user mode of X2 renewal to PCI through X2 and is detected; Detect in the base station under the situation of sub-district of PCI to be allocated, the base station is available PCI of above-mentioned cell selecting according to testing result from a preset number PCI and or the PCI that from untapped PCI, selects, and the result that will select reports webmaster.

In above-mentioned preferred embodiment, in network operation process, in order to realize the optimization of network PCI; The base station is set up with the user mode of X2 renewal to PCI through X2 and is detected, and can be to detect whether conflict is arranged, obscure appearance, and whether the PCI failure phenomenon of certain sub-district is arranged; When detecting above-mentioned any phenomenon, (for example, detecting sub-district that conflict, the sub-district of obscuring, PCI lost efficacy etc.); Be under the scene of distributed allocation of PCI in this sub-district; Promptly this cell allocation has subsequent use PCI, and then the base station is directly reselected a PCI and used for this sub-district from a preset number PCI and or the PCI (being subsequent use PCI) that from untapped PCI, selects, then; Result after the base station will be distributed reports webmaster, and webmaster is illustrated in allocation result in the SON control centre.

In order effectively to reduce the network O&M cost that PCI distributes; Improve the accuracy rate that low PCI distributes; In this preferred embodiment, for each PCI among a plurality of PCI, webmaster calculates the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively; Wherein, reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI; Above-mentioned webmaster is confirmed the maximum multiplexing coefficient of each PCI; Above-mentioned webmaster selects a preset number PCI to give the sub-district from a plurality of PCI according to the order from big to small of all maximum multiplexing coefficients of determining.

In above-mentioned preferred embodiment, realize to distribute automatically PCI through network, avoid planning the PCI of base station, thereby effectively reduce the network O&M cost that PCI distributes through manual work, improve the accuracy rate that low PCI distributes.

In order to improve the flexibility of present embodiment; In this preferred embodiment; From a plurality of PCI, select a preset number PCI to after the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining at webmaster; Be that webmaster will send to the network element of sub-district for the PCI of cell allocation under 1 the situation in preset number.In the time of promptly need be for 1 PCI of cell allocation of above-mentioned PCI to be allocated, webmaster be given the network element of sub-district synchronously with the PCI of distributing, and promptly the centralised allocation mode comes to be cell allocation PCI.

In network operation process, in order to realize the optimization of network PCI, in this preferred embodiment, the auto-allocation method of above-mentioned PCI also comprises: the base station is detected through the user mode that X2 sets up and X2 upgrades PCI; Be under 1 the situation in preset number, and detect in the base station under the situation of sub-district of above-mentioned PCI to be allocated that the base station reports webmaster with testing result, webmaster is cell allocation PCI according to testing result.

In above-mentioned preferred embodiment, in network operation process, in order to realize the optimization of network PCI; The base station is set up with the user mode of X2 renewal to PCI through X2 and is detected, and can be to detect whether conflict is arranged, obscure appearance, and whether the PCI failure phenomenon of certain sub-district is arranged; When detecting above-mentioned any phenomenon; (for example, detecting sub-district that conflict, the sub-district of obscuring, PCI lost efficacy etc.) is under the scene of centralised allocation of PCI in this sub-district; The base station reports webmaster with testing result, and being come according to testing result by webmaster is that PCI is redistributed in above-mentioned sub-district.

In order to improve the reliability that PCI distributes; In this preferred embodiment; Webmaster is that above-mentioned cell allocation PCI comprises according to testing result: webmaster confirm testing result be clash or situation about obscuring under, webmaster is selected the sub-district of a sub-district as above-mentioned PCI to be allocated from the sub-district centering that clashes or obscure, wherein; The sub-district of this PCI to be allocated clashes for sub-district centering or to obscure number of times maximum, and a minimum sub-district of call setup number; Webmaster is the cell allocation PCI of this PCI to be allocated.

In above-mentioned preferred embodiment; When the phenomenon of detect conflict in the base station, obscuring occurs; When the PCI of the sub-district of conflict occurs, obscuring is the centralised allocation mode; The base station reports webmaster with testing result (including the right information in sub-district that clashes, obscures), webmaster from the sub-district centering select one to clash or to obscure number of times maximum, and the minimum sub-district of call setup number is as the sub-district of PCI to be allocated; To be this cell allocation PCI again, to reduce the probability that PCI conflict occurs, obscures.

In network operation process, in order to realize the optimization of network PCI, in this preferred embodiment, the auto-allocation method of above-mentioned PCI also comprises: the base station is detected through the user mode that X2 sets up and X2 upgrades PCI; Preset number greater than 1 situation under, and detect the sub-district in the base station and do not have under the situation of available PCI, the base station reports webmaster with testing result, webmaster is that a preset number PCI is redistributed in the sub-district according to testing result.Promptly detecting sub-district that need to distribute PCI, and the PCI of this sub-district is the distributed allocation mode, detecting this sub-district does not have under the situation of subsequent use PCI, and the base station reports webmaster with testing result, is that PCI is redistributed in above-mentioned sub-district by webmaster.

In order to satisfy the demand of different application scene, in this preferred embodiment, webmaster is after the cell allocation PCI of above-mentioned PCI to be allocated, webmaster will for the PCI information exhibition of above-mentioned cell allocation in the self-organizing network monitoring; Webmaster issues the PCI information into cell allocation, when being the centralised allocation mode, the PCI information of distributing is handed down to the base station, when being the distributed allocation mode, the PCI information of distributing is handed down to the base station at place, above-mentioned sub-district; Perhaps webmaster will for the PCI information exhibition of above-mentioned cell allocation in the self-organizing network monitoring; Webmaster issues the PCI into cell allocation after receiving the instruction that confirm to continue, and the PCI information exhibition that is about to above-mentioned cell allocation is after in the self-organizing network monitoring; When the user confirms to continue next step; Then webmaster issues the PCI into above-mentioned cell allocation, and when the user stopped, the user can select to carry out manual allocation PCI; At this moment, the flow process of above-mentioned distribution PCI finishes.

Preferably, in the LTE network, self-organizing network (self organizing network has been proposed; Abbreviate SON as) notion; Be that network parameter can dispose and adjust automatically, the distribution method of above-mentioned PCI can be carried out alternately with self-organizing network, monitors the PCI information that shows distribution through SON; The user can select whether to proceed the flow process of above-mentioned distribution method as required, to reduce the cost of network O&M.

In this preferred embodiment; The automatic allocation device of a kind of preferred PCI is provided, and as shown in Figure 2, the distributor of this PCI comprises: computing module 202; Be used for each PCI for a plurality of PCI; Calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively, wherein, reuse is used to represent the sub-district of above-mentioned PCI to be allocated and the relative position relation that uses the sub-district of this PCI; Determination module 204 is connected to computing module 202, is used for confirming the maximum multiplexing coefficient of each PCI; Distribution module 206 is connected to determination module 204, is used for selecting a preset number PCI to give the sub-district according to the order from big to small of all maximum multiplexing coefficients of determining from a plurality of PCI.

In above-mentioned preferred embodiment, for each PCI among a plurality of PCI, computing module 202 calculates the reuse between the sub-district of all sub-districts of having used this PCI and PCI to be allocated respectively; This reuse is used to represent the sub-district of PCI to be allocated and the relative position relation that uses the sub-district of this PCI, and reuse is high more, and reliability is high more; It is more little promptly to clash the probability of obscuring, and determination module 204 is confirmed the maximum multiplexing coefficient of each PCI, then; Distribution module 206 selects a preset number PCI to give the sub-district from a plurality of PCI according to the order from big to small of all maximum multiplexing coefficients of determining, with the reliability of the PCI that guarantees to greatest extent to distribute, thereby reduces probability of errors; Improve the reliability of arranging net; Simultaneously, reduce the human input of network planning network optimization, reduced the O&M cost of operator.

For improving the efficient that PCI distributes, improve the reliability that PCI distributes, in this preferred embodiment, above-mentioned distribution module 206 also is used for selecting one or more PCI to give the sub-district of above-mentioned PCI to be allocated from untapped PCI.

For improving the reliability that PCI distributes; In this preferred embodiment; Computing module 202 also is used for calculating all sub-districts of using this PCI and the reuse of PCI to be allocated sub-district according to one of following information: used all sub-districts of this PCI and the distance between the sub-district; Use all sub-districts and the distance between the sub-district of this PCI and used all sub-districts of this PCI and the relative angle weights between the sub-district.

Preferably, in the process of the reuse of calculating all sub-districts of using this PCI through above-mentioned information, computing module 202; Also be used for adopting following mode to realize, R=D+K*A, wherein; R is for using the reuse of all sub-districts of this PCI; D is for using all sub-districts of this PCI and the distance between the sub-district, and A is pre-configured value for using all sub-districts of this PCI and the relative angle weights between the sub-district, K.

In order to satisfy the demand of different application scene; In this preferred embodiment; The automatic allocation device of above-mentioned PCI also comprises: first sending module, be connected to distribution module 206, and be used for selecting a preset number PCI to after the sub-district from a plurality of PCI in order from big to small according to all maximum multiplexing coefficients of determining; Preset number greater than 1 situation under; A preset number PCI and/or the PCI that from untapped PCI, selects are sent to the base station under the sub-district, so as the base station from the untapped PCI of a preset number PCI and/or above-mentioned selection (for example, when directly being a plurality of subsequent use PCI of above-mentioned cell selecting from untapped PCI; Then be from the untapped PCI that selects, to use for PCI of cell selecting; Selecting through reuse under the situation of PCI at the direct said method of using, then is from a preset number PCI, to use for PCI of above-mentioned cell selecting, if there is untapped PCI; And under the situation of the number of untapped PCI less than the number of the above-mentioned subsequent use PCI in sub-district; Then earlier from untapped PCI, select PCI, select PCI through the reuse in the said method again, use for PCI of above-mentioned cell selecting this moment from the untapped PCI of a preset number PCI and selection) be PCI of cell selecting.

In order to improve the flexibility of present embodiment; In this preferred embodiment, the automatic allocation device of above-mentioned PCI also comprises: second sending module is connected to distribution module 206; Be under 1 the situation in preset number; To send to the network element at place, sub-district for the PCI of above-mentioned cell allocation, for example, the base station at place, above-mentioned sub-district.

In order to improve the reliability that PCI distributes; In this preferred embodiment, the automatic allocation device of above-mentioned PCI also comprises: select module, be used for after receiving the testing result that the base station reports; Confirm testing result be clash or situation about obscuring under; Be under the scene of centralised allocation of PCI in this sub-district, select the sub-district of a sub-district from the sub-district centering that clashes or obscure, wherein as above-mentioned PCI to be allocated; The sub-district of this PCI to be allocated clashes for sub-district centering or to obscure number of times maximum, and a minimum sub-district of call setup number; Above-mentioned distribution module 206 also is used to the cell allocation PCI of this PCI to be allocated.

In order to satisfy the demand of different application scene, in this preferred embodiment, the automatic allocation device of above-mentioned PCI also comprises: display module, be connected to distribution module 206, and be used for monitoring at self-organizing network for the PCI information exhibition of above-mentioned cell allocation; First sending module or second sending module are connected to display module, also are used to issue the PCI information into cell allocation.Perhaps first sending module or second sending module are connected to display module, after also being used to receive the instruction of confirming continuation, issue the PCI into above-mentioned cell allocation.

Below in conjunction with accompanying drawing above-mentioned each preferred embodiment is described in detail.

The distribution method of above-mentioned PCI mainly is used in two kinds of scenes; First kind is the automatic distribution of the whole network or part website PCI when initially arranging net; Second kind is the PCI optimization in the network operation process; Comprise following several kinds of situation again: newly dispose the automatic distribution of a base station or a sub-district PCI; The redistributing of PCI when PCI clashes redistributing of PCI when obscuring and sub-district and do not have PCI or PCI to be invalid value in the network operation process, distributing for the PCI in the network operation process has dual mode again, and a kind of is that NMS is concentrated to conflict or the sub-district of obscuring distributing an available PCI automatically; A kind of in addition is that NMS is that the base station issues available PCI list, when clash obscure or occur PCI for distribute or when invalid base station oneself in available PCI list, select the available PCI use.

In the present embodiment, be example to distribute 1 PCI, Fig. 3 is the flow chart that distributes automatically according to the PCI of the embodiment of the invention, and is as shown in Figure 3, this PCI automatically distributively flow process comprise that step S302 is to step S310.

S302: webmaster obtains the cell information of the sub-district (sub-district that is equivalent to above-mentioned PCI to be allocated) that needs distribution PCI, for example, and information such as sub-district ID, frequency, longitude and latitude, deflection and former PCI value.

S304: webmaster obtains all and the cell information of the identical frequency in sub-district of PCI to be allocated, for example, and information such as sub-district ID, frequency, longitude and latitude and deflection.

S306: with PCI is index; According to PCI (being equivalent to above-mentioned a plurality of PCI) access times order from small to large (can certainly be order from big to small; Promptly the size according to the PCI access times is arranged in order) arrange; Judge whether to exist untapped PCI, if there is untapped PCI (being that multiplexing number is 0), then therefrom selecting a multiplexing number is that 0 PCI uses for new sub-district (sub-district that is equivalent to PCI to be allocated); If there is not untapped PCI, then go to step S308.

S308: for above-mentioned a plurality of PCI, webmaster calculates new sub-district successively and uses the reuse of all sub-districts of each PCI, and reuse is high more between the sub-district, and then the reliability of multiplexing PCI is high more.Calculation Method is: R _AB=D _AB+ K*A _AB, wherein the value of K is configured through NMS by the user, D _ABExpression sub-district A need calculate A according to longitude and latitude to the air line distance of sub-district B _ABThe relative angle weights of expression district A and sub-district B, the relative angle weights carry out value according to the table 1 in the appendix, preferably; For allocation algorithm, the user can select also to be based on distance and angle based on distance as required and carry out the multiplexing of PCI, the influence coefficient of K value representation angle; Find out the highest sub-district of reuse of each PCI, then, to the above-mentioned reuse of finding out according to big minispread; Judge whether also to have untreated PCI, if having, repeating step S308 then; If do not exist, then go to step S310.

Step S310: webmaster is selected the highest reuse from the reuse of finding out, and the PCI that this reuse corresponding district is used is distributed to the sub-district of PCI to be allocated.Preferably; Webmaster comes into force perhaps to network element newly assigned PCI automatically synchronously, and webmaster is handed down to the base station with the PCI that distributes; Sub-district PCI is reset in the base station, and the result will be set report webmaster (automatic distribution does not need synchronously to give network element for the PCI that initially arranges net, and has assigned the back and by hand the whole table of all configuration datas has been synchronized to network element by the user and comes into force); If the base station is provided with PCI, then webmaster upgrades corresponding PCI and the automatic distribution result of PCI is illustrated in the SON monitoring.

In the present embodiment, be example to distribute the PCI tabulation, Fig. 4 is the flow chart that the PCI tabulation according to the embodiment of the invention distributes automatically, and is as shown in Figure 4, this PCI tabulation automatically distributively flow process comprise that step S402 is to step S410.

S402: webmaster obtains the cell information that needs to distribute the PCI tabulation, for example, and information such as sub-district ID, frequency, longitude and latitude, deflection and former PCI value.

S404: webmaster obtains all and the cell information of the identical frequency in PCI to be allocated tabulation sub-district, for example, and information such as sub-district ID, frequency, longitude and latitude and deflection.

S406: with PCI is index; According to PCI (being equivalent to above-mentioned a plurality of PCI) access times order from small to large (can certainly be order from big to small; Promptly the size according to the PCI access times is arranged in order) arrange, judge whether to exist untapped PCI, if there is untapped PCI (being that multiplexing number is 0); Judge that whether (N representes the PCI number in the PCI tabulation greater than N for the number of untapped PCI; Can dispose), if therefrom selecting N multiplexing number is that 0 PCI uses for new sub-district (sub-district that is equivalent to above-mentioned PCI to be allocated); If do not have untapped PCI or exist untapped PCI number, then go to step S408 less than N.

Step S408: for to above-mentioned a plurality of PCI, webmaster calculates the reuse matrix of new sub-district and all sub-districts of using each PCI successively, and the reusability coefficient is high more between the sub-district, and then the reliability of multiplexing PCI is high more.Calculation Method is: R _AB=D _AB+ K*A _AB, wherein the value of K is disposed by the backstage, D _ABExpression sub-district A need calculate A according to longitude and latitude to the air line distance of sub-district B _ABThe relative angle weights of expression district A and sub-district B, the relative angle weights carry out value according to the table 1 in the appendix, find out the highest sub-district of reuse of each PCI; Then, the above-mentioned reuse of finding out according to big minispread, is judged whether also to exist untreated PCI; If have; Then repeating step S408 if do not exist, then goes to step S410.

Step S410: webmaster selects top n or N-M the high PCI of reuse to use for new sub-district from the reuse of finding out, and above-mentioned M is the untapped PCI number of selecting.Preferably; Webmaster comes into force perhaps to network element newly assigned PCI automatically synchronously, and webmaster is handed down to the base station with the PCI that distributes; Sub-district PCI is reset in the base station, and the result will be set report webmaster (automatic distribution does not need synchronously to give network element for the PCI that initially arranges net, and has assigned the back and by hand the whole table of all configuration datas has been synchronized to network element by the user and comes into force); If the base station is provided with PCI, then webmaster upgrades corresponding PCI and the automatic distribution result of PCI is illustrated in the SON monitoring.

Fig. 5 is according to the embodiment of the invention and interaction diagrams SON monitoring, and is as shown in Figure 5, should comprise step S502 step S14 with interaction flow of SON monitoring.

Step S502:SON monitoring unit is received the allocation result message that allocation units send.

Step S504: judge whether to be controlled mode, if then go to step S506, if not, then go to step S512.

Step S506: whether judges is confirmed to continue, if, then go to step S508, if not, then flow process finishes.

Step S508: judge whether need to revise allocation result, if not, then go to step S510, if the PCI that then user is provided with is as the PCI that comes into force.

Step S510: the PCI that will distribute automatically is as the PCI that comes into force.

Step S512: issue the unit and reset sub-district PCI and coming into force to the base station synchronously, simultaneously the result is illustrated in the SON Surveillance center, perhaps webmaster issues the base station with the PCI that distributes, and the base station reports webmaster with the result after resetting the PCI of sub-district.

Step S514: if PCI is reset in the base station, webmaster upgrades corresponding PCI and the automatic distribution result of PCI is illustrated in the SON monitoring.

Fig. 6 is the structured flowchart according to the distributor of the another kind of PCI of the embodiment of the invention; As shown in Figure 6; The distributor of this PCI comprises: receiving element 602; Allocation units 604 (being equivalent to aforementioned calculation module 202, determination module 204 and distribution module 206) issue unit 606 (being equivalent to above-mentioned first sending module and second sending module) and SON control unit 608.

In the present embodiment, with reference to figure 3, Fig. 5, Fig. 6 and Fig. 7, Fig. 8 is the flow chart according to the PCI original allocation of the embodiment of the invention, and is as shown in Figure 8, and the flow process of this PCI original allocation comprises that step S802 is to step S820.

Step S802: import the engineering parameter of all base stations through webmaster, comprise the longitude and latitude, antenna tilt, sector of all sub-districts etc.

Step S804: all layout data that import the base station through network management system; Need set the switch that PCI distributes automatically in the layout data; Perhaps increasing a base station and sub-district (can import through the projecting parameter template, also can add by hand) newly through network management system in the operational network.

Step S806: webmaster reads the automatic dispense switch of PCI of sub-district, if open, is that the sub-district is distributed PCI automatically according to the following step then, if close, then changes step S820.

Step S808 to step S816 with the step S308 among Fig. 3 to step S316.

Step S808: allocation units obtain the cell information that needs to distribute PCI, comprise information such as sub-district ID, frequency, longitude and latitude, deflection and former PCI value.

Step S810: webmaster obtains all and the cell information (comprising information such as sub-district ID, frequency, longitude and latitude and deflection) of the identical frequency in sub-district of PCI to be allocated.

Step S812: with PCI is index; According to PCI (being equivalent to above-mentioned a plurality of PCI) access times order from small to large (can certainly be order from big to small; Promptly the size according to the PCI access times is arranged in order) arrange; Judge whether to exist untapped PCI, if there is untapped PCI (being that multiplexing number is 0), the PCI of (promptly using) uses for new sub-district (sub-district that is equivalent to PCI to be allocated) then therefrom to select a multiplexing number to be 0; If there is not untapped PCI, then goes to step S814 and select a PCI to carry out multiplexing.

Step S814: for above-mentioned a plurality of PCI, webmaster calculates new sub-district successively and uses the reuse matrix of all sub-districts of this PCI, and the reusability coefficient is high more between the sub-district, and then the reliability of multiplexing PCI is high more.Calculation Method is: R _AB=D _AB+ K*A _AB, wherein the value of K is disposed by the backstage, D _ABExpression sub-district A need calculate A according to longitude and latitude to the air line distance of sub-district B _ABThe relative angle weights of expression district A and sub-district B, the relative angle weights carry out value according to the table 1 in the appendix, preferably; For allocation algorithm; The user can select also to be based on distance and angle based on distance as required and carry out the multiplexing of PCI, and the influence coefficient of K value representation angle is with the deflection vector of " A arrow " expression sub-district A; The deflection vector of " B arrow " expression sub-district B; " AB arrow " expression from the sub-district A to the sub-district B line vector, " BA arrows " expression from the sub-district B to the sub-district A line vector, A vows with B and vows that being defined as A in the same way vows and the homonymy of B arrow at the AB line; A vows with B and vows that being defined as the A arrow dorsad vows that with B two sub-district deflection graphs of a relation are as shown in Figure 7 in the both sides of AB line.Select the PCI that reuse is the highest after calculating the relative angle weights.

Step S816: repeating step S814, calculate the reuse of new sub-district and all sub-districts, therefrom select a PCI that reuse is the highest then and use for new sub-district.

Step S818: webmaster upgrades respective cell PCI the PCI allocation result is illustrated in the SON Surveillance center (if then need come into force allocation result synchronously or be issued to network element in the newly-increased sub-district in the running to the base station; Network element reports webmaster with the result after being provided with successfully, and webmaster is illustrated in the result in the SON Surveillance center).

Step S820: judge whether also to exist the sub-district of PCI to be allocated, if be still waiting to distribute the sub-district of PCI, then repeating step S806 is to S818, if do not exist, then flow process finishes.

In the present embodiment, with reference to figure 3, Fig. 5, Fig. 6 and Fig. 7, Fig. 9 is the process chart according to the conflict confusion message of the embodiment of the invention, and is as shown in Figure 9, and this handling process comprises that step S902 is to step S920.

Step S902: on webmaster, enable the PCI self-optimization function.

Step S904: the detection that the base station is set up through X2 and X2 renewal carrying out PCI conflicts, obscures (also need be carried out the maintenance of available PCI list state when X2 foundation is upgraded with X2; If certain PCI in this sub-district PCI tabulation has been used in the adjacent area of other sub-districts of our station or certain sub-district; Then this PCI is changed to and uses); Judge it is centralised allocation or distributed allocation during detection; If centralised allocation reports webmaster with testing result, the sub-district that reporting information comprises conflict, obscure is to information (sub-district overall identification (Eutran Cell Goal Identify abbreviates ECGI as)); Conflict, the PCI value of obscuring; Type of message (conflict or obscure), if distributed allocation, base station oneself is selected an available PCI (not being used) and is reported webmaster (type of message is a distributed allocation) from available PCI list.

Step S906: the webmaster receiving element receives the message that the base station reports; Judge type of message, if conflict obscures, then from sub-district centering select to occur conflict obscure number of times at most and the sub-district the minimum sub-district of call setup number as the sub-district of redistributing PCI; Go to step S908; If distributed allocation, the then direct PCI that the base station is reported then changes step S920 as new PCI.

Step S908: needs are redistributed the reporting district information SON Surveillance center of PCI, wait for user's decision-making, if the user confirms to continue, then go to step S910, if the user stops, then flow process finishes.

Step S910: with step S808 to S816.

Step S918: judge whether also to exist the sub-district of PCI to be allocated, if be still waiting to distribute the sub-district of PCI, repeating step S910 if do not exist, then goes to step S920 to S918.

Step S920: the PCI information exhibition that webmaster will upgrade goes to Fig. 5 in the SON monitoring.

In the present embodiment, with reference to figure 3, Fig. 5, Fig. 6 and Fig. 7, Fig. 9 is that this handling process can also comprise the steps according to the process chart of the conflict confusion message of the embodiment of the invention.

Step S1 to S3 with step S902 to S906.

Step S4: the reporting district information SON Surveillance center that needs is redistributed PCI.

Step S5: with step S910 to S918.

Step S6: cell information and new PCI that webmaster is redistributed PCI with needs are illustrated in the SON monitoring.

Step S7: webmaster issues that the unit comes into force the cell parameter of resetting synchronously to the base station and is illustrated in the SON Surveillance center execution result or webmaster is handed down to the base station with the PCI that distributes, and sub-district PCI is reset in the base station, and the result will be set report webmaster.

Step S8: if the base station is provided with PCI, then webmaster upgrades corresponding PCI and the automatic distribution result of PCI is illustrated in the SON monitoring.

In the present embodiment, with reference to figure 4, Fig. 5, Fig. 6 and Fig. 7, below be the handling process of the PCI tabulation detect-message of the embodiment of the invention, this handling process comprises the steps.

Step S1: on webmaster, enable the PCI self-optimization function.

Step S2: the base station is set up through X2 and is upgraded and carry out the renewal of available PCI list, if there is not PCI to use, then reports the PCI unavailable message of tabulating to webmaster.

Step S3: the webmaster receiving element receives the information that the base station reports, and PCI is tabulated unavailable information reporting to SON Surveillance center, treats that the user makes a strategic decision, and the user confirms then to continue next step, and the user stops then flow process end.

Step S4: the webmaster receiving element sends to allocation units with message, and allocation units obtain the cell information that needs to distribute the PCI tabulation, comprise information such as sub-district ID, frequency, longitude and latitude, deflection and former PCI value.

Step S5: allocation units obtain all and the cell information (comprising sub-district ID, frequency, longitude and latitude and deflection) of the identical frequency in PCI to be allocated tabulation sub-district.

Step S6: with PCI is index; Arrange according to PCI access times order from small to large; Therefrom select N multiplexing number be 0 PCI of (promptly using) to use that (N representes the PCI number in the PCI tabulation for new sub-district; Can dispose), if but there is not untapped PCI or exists untapped PCI number less than N, then select N or N-M (the untapped PCI number that the M representative has been selected) PCI to carry out multiplexing according to following step.

Step S7: for above-mentioned a plurality of PCI, webmaster calculates new sub-district successively and uses the reuse matrix of all sub-districts of this PCI, and the reusability coefficient is high more between the sub-district, and then the reliability of multiplexing PCI is high more.Calculation Method is: R _AB=D _AB+ K*A _AB, wherein the value of K is disposed by the backstage, D _ABExpression sub-district A need calculate A according to longitude and latitude to the air line distance of sub-district B _ABThe relative angle weights of expression district A and sub-district B; The relative angle weights carry out value according to the table 1 in the appendix; With the deflection vector of " A arrows " expression sub-district A, " B arrows " represented the deflection vector of sub-district B, " AB arrow " represent from the sub-district A to the sub-district B line vector; " BA arrow " expression from the sub-district B to the sub-district A line vector, A vows with B and vows that being defined as A in the same way vows with B and vow the homonymy at the AB line; A vows with B and vows that being defined as the A arrow dorsad vows that with B two sub-district deflection graphs of a relation are as shown in Figure 8 in the both sides of AB line.Find out a highest sub-district of reuse after calculating the relative angle weights.

Step S8: repeating step S6, calculate the reuse of new sub-district and all sub-districts, therefrom select the high PCI of a top n or N-M reuse to use for new sub-district then.

Step S9: webmaster reports SON Surveillance center with the PCI list information of redistributing, and waits for user's decision-making, if confirm to continue, then continues next step, if stop, then flow process finishes.

Step S10: webmaster issues the unit: the PCI tabulation of resetting the sub-district also comes into force to the base station synchronously; Simultaneously execution result is illustrated in the SON Surveillance center or webmaster is handed down to the base station with the PCI tabulation that distributes; Sub-district PCI tabulation is reset in the base station, and the result will be set report webmaster.

Step S11: if the base station is provided with the PCI tabulation, then webmaster upgrades corresponding PCI tabulation and automatic distribution result is illustrated in the SON monitoring.

Step S12: if also have the sub-district that needs to distribute the PCI tabulation, repeating step S3 is to step S10.

In the present embodiment, with reference to figure 4, Fig. 5, Fig. 6 and Fig. 7, below be that this handling process can also comprise the steps according to the handling process of the another kind of PCI tabulation detect-message of the embodiment of the invention.

Step S1 to S7 with above-mentioned execution mode step S1 to S3.

Step S8: webmaster reports SON Surveillance center with the PCI list information of redistributing.

Step S9: webmaster issues the unit: the PCI tabulation of resetting the sub-district also comes into force to the base station synchronously; Simultaneously execution result is illustrated in the SON Surveillance center or webmaster is handed down to the base station with the PCI tabulation that distributes; Sub-district PCI tabulation is reset in the base station, and the result will be set report webmaster.

Step S10: if the base station is provided with the PCI tabulation, then webmaster upgrades corresponding PCI tabulation and automatic distribution result is illustrated in the SON monitoring.

Step S11: if also have the sub-district that needs to distribute the PCI tabulation, repeating step S3 is to step S5.

In the present embodiment, with reference to figure 3, Fig. 5, Fig. 6 and Fig. 7, Figure 10 is that shown in figure 10, this handling process comprises that step S1002 is to step S1006 according to the PCI invalid value of the embodiment of the invention or the process chart of unallocated PCI.

Step S1002: is restarting or whether sub-district PCI detects whether the PCI value distributes or be invalid when changing or through the mode that periodically detects the base station; Need judge during detection that the PCI allocation model is centralized or distributed; If centralizedly then testing result is reported webmaster, report parameter to comprise sub-district, the sub-district overall identification (Eutran Cell Goal Identify abbreviates ECGI as) of invalid value; Be travelling carriage national code (Mobile Country Code; Abbreviate MCC as), mobile network code, MNC (Mobile Network Code abbreviates MNC as), Base Station Identification (Identifier abbreviates ID as), sub-district ID; If distributed allocation then selects a PCI to report webmaster (PCI that comprises selection in the message) from available PCI list.

Step S1004: the webmaster receiving element receives the message that the base station reports; Judge type of message, judge whether to be centralised allocation, if centralised allocation; Then carry out step S904 in the execution mode to S908; If distributed allocation, then directly with the PCI that reports as new PCI, continuation execution in step S1006.

Step S1006: cell information and new PCI that webmaster is redistributed PCI with needs are illustrated in the SON monitoring, go to Fig. 5.

In the present embodiment, with reference to figure 3, Fig. 5, Fig. 6 and Fig. 7, Figure 10 is that this handling process can also comprise the steps according to the PCI invalid value of the embodiment of the invention or the process chart of unallocated PCI.

Step S1 to S12 with step S1002 to S1004.

Subsequent step arrives S912 with S910.

Table 1 relative angle weight table

Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the auto-allocation method of a physical-layer cell identifier PCI is characterized in that, comprising:

For each PCI among a plurality of PCI, calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively, wherein, said reuse is used to represent said sub-district and the relative position relation that uses the sub-district of this PCI;

Confirm the maximum multiplexing coefficient of said each PCI;

From said a plurality of PCI, select a preset number PCI to give said sub-district according to the order from big to small of all maximum multiplexing coefficients of determining.

2. method according to claim 1 is characterized in that, for each PCI among said a plurality of PCI, calculates respectively before the reuse of the sub-district of said PCI to be allocated and all sub-districts of having used this PCI, also comprises:

From untapped PCI, select one or more PCI to give said sub-district.

3. method according to claim 1 is characterized in that, calculates the reuse of all sub-districts of using this PCI according to one of following information:

Said all sub-districts of this PCI and the distance between the said sub-district used;

Said all sub-districts and distance between the said sub-district and said all sub-districts of this PCI and the relative angle weights between the said sub-district of having used that used this PCI.

4. method according to claim 3 is characterized in that, calculates the reuse of all sub-districts of using this PCI according to following formula:

R=D+K*A; Wherein, Said R is for using the reuse of all sub-districts of this PCI; Said D is said all sub-districts of this PCI and the distance between the said sub-district used, and said A is said all sub-districts of this PCI and the relative angle weights between the said sub-district of having used, and said K is pre-configured value.

5. method according to claim 1 is characterized in that, said a plurality of PCI are the PCI except the PCI that produces conflict or obscure.

6. method according to claim 1 is characterized in that,

Said all sub-districts are the sub-district with the identical frequency in said sub-district.

7. method according to claim 2 is characterized in that, from said a plurality of PCI, is selecting a preset number PCI to after the said sub-district according to the order from big to small of all maximum multiplexing coefficients of determining, also comprises:

Said preset number greater than 1 situation under, a said preset number PCI and/or the PCI that from said untapped PCI, selects are sent to the base station under the said sub-district;

Said base station is PCI of said cell selecting from the untapped PCI of a said preset number PCI and/or selection.

8. method according to claim 7 is characterized in that, said method also comprises:

Said base station is detected through the user mode that X2 sets up and X2 upgrades PCI;

Detect in said base station under the situation of said sub-district; Said base station is available PCI of said cell selecting from the untapped PCI of a said preset number PCI and/or said selection according to said testing result, and the result that will select reports webmaster.

9. according to each described method in the claim 1 to 8, it is characterized in that,

For each PCI among said a plurality of PCI; Webmaster calculates the sub-district of said PCI to be allocated and the reuse of using all sub-districts of this PCI respectively; Wherein, said reuse is used to represent the sub-district of said PCI to be allocated and the relative position relation that uses the sub-district of this PCI;

Said webmaster is confirmed the maximum multiplexing coefficient of said each PCI;

Said webmaster selects a preset number PCI to give said sub-district from said a plurality of PCI according to the order from big to small of all maximum multiplexing coefficients of determining.

10. method according to claim 9 is characterized in that, from said a plurality of PCI, selects a preset number PCI to after the said sub-district according to the order from big to small of all maximum multiplexing coefficients of determining at said webmaster, also comprises:

Be that said webmaster will send to the network element of said sub-district for the PCI of said cell allocation under 1 the situation in said preset number.

11. method according to claim 9 is characterized in that, said method also comprises:

The base station is detected through the user mode that X2 sets up and X2 upgrades PCI;

Be under 1 the situation in said preset number, and detect under the situation of said sub-district in said base station that said base station reports said webmaster with said testing result, said webmaster is said cell allocation PCI according to said testing result.

12. method according to claim 11 is characterized in that, said webmaster is that said cell allocation PCI comprises according to said testing result:

Said webmaster confirm said testing result be clash or situation about obscuring under; Said webmaster selects a sub-district as said sub-district from the sub-district centering that clashes or obscure; Wherein, Said sub-district is that said sub-district centering clashes or to obscure number of times maximum, and a minimum sub-district of call setup number;

Said webmaster is said cell allocation PCI.

13. method according to claim 9 is characterized in that, said method also comprises:

Said preset number greater than 1 situation under; And detecting said sub-district in said base station does not have under the situation of available PCI; Said base station reports said webmaster with said testing result, and said webmaster is that PCI is redistributed in said sub-district according to said testing result.

14., it is characterized in that said webmaster is after the said cell allocation PCI, also comprises according to claim 12 or 13 described methods:

Said webmaster will for the PCI information exhibition of said cell allocation in the self-organizing network monitoring;

Said webmaster issues the PCI into said cell allocation after receiving the instruction of confirming to continue.

15., it is characterized in that said webmaster is after the said cell allocation PCI, also comprises according to claim 12 or 13 described methods:

Said webmaster issues the PCI information into said cell allocation.

16. the automatic allocation device of a physical-layer cell identifier PCI is characterized in that, comprising:

Computing module; Be used for each PCI to a plurality of PCI; Calculate the sub-district of PCI to be allocated and the reuse of using all sub-districts of this PCI respectively, wherein, said reuse is used to represent the sub-district of said PCI to be allocated and the relative position relation that uses the sub-district of this PCI;

Determination module is used for confirming the maximum multiplexing coefficient of said each PCI;

Distribution module is used for selecting a preset number PCI to give said sub-district according to the order from big to small of all maximum multiplexing coefficients of determining from said a plurality of PCI.