CN104144430A - Physical cell identity optimizing method and device - Google Patents
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Abstract
The invention provides a physical cell identity optimizing method and device. The method comprises the steps that when mod 3 interference of a physical cell identity exists in a first cell under a first station is detected, an optimized zone which at least comprises the first zone covered by the first station is determined; a mod 3 interference result on the first cell from a second cell is computed under the situation of cells in the optimized zone with different set physical cell identities, wherein the second cell is adjacent to the first cell, and the value of the second cell is the same as the value obtained after mod 3 is identified on a physical cell of the first cell; according to the mod 3 interference result, target configuration results of the physical cell identities of the cells of the optimized zone are determined; and according to the target configuration results, the physical cell identities of the cells in the optimized cell are configured. According to the whole interference results in the optimized zone, the physical cell identities of the multiple cells in the optimized zone are adjusted.
Description
Technical field
The present invention relates to wireless technical field, relate in particular to a kind of Physical Cell Identifier optimization method and device.
Background technology
Timesharing Long Term Evolution TD-LTE system adopts interference randomization, disturbs the mechanism such as elimination, interference coordination effectively to control co-channel interference.In LTE system, a lot of physical channels or signal, such as main synchronizing sequence PSS, secondary synchronization sequences SSS, Physical Control Format Indicator Channel PCFICH etc., frequency domain position is all relevant with Physical Cell Identifier PCI at that time, and therefore the reasonability of PCI planning is very important.If PCI planning is bad, can cause larger adjacent area to disturb, thereby reduce cell throughout, increase propagation delay time.Such as identical for fear of the main synchronizing sequence PSS between neighbor cell, when planning PCI, need to consider that the PCI of PCI mould 3 distributes, and the identical interference causing of PSS is one of main source of current LTE internal system interference.
TD-SCDMA system adopts N frequency point networking, and it is multiplexing that common signal channel can be realized the alien frequencies of N frequency, to reduce interference.And in TD-LTE system, under the complete identical networking of control channel, disturb more serious.For reference signal RS, TD-LTE system is the in the situation that of the configuration of 2 antenna ports, and can realize PCI mould 3 and do not wait time, stagger in RS position.Under network zero load, it is 3 inter-frequency networking that RS signal is equivalent to N; But under network full load conditions, RS signal is subject to the interference of other cell datas Yu community coverage enhancement technology RE, the identical networking that the actual N of being equivalent to is 1.
Desirable PCI planning chart as shown in Figure 1.
Cover and can not arrange rule so in Ru Tu1Zhong community in real network planning Zhong community, but must consider that the PCI that mould 3 is identical with mould 6 can not be distributed in direct air exercise He Tongzhan community.
Can find that by test some can orientate the network problem disturbing in system as, cross after covering problem having got rid of peripheral cell, now should check the PCI of peripheral cell, be confirmed whether to exist the identical and interference that causes of mould 3 between the PCI of adjacent area.Emphasis should be noted that the neighbor cell that those adjacent boundaries are grown, and avoids the value of PCI mould 3 to equate between it as far as possible.
Antenna-feedback system connects and instead can cause the overlay area of community different from planning simultaneously, also can cause similar problem.During by drive test or the PCI of drive test post analysis Serving cell get figure ready whether can be very easy to find PCI value in the each cell coverage area in certain base station identical with layout data, if there is situation about putting upside down, be likely because antenna-feedback system connects counter causing.
Common above-mentioned PCI interference problem can be by adjusting simply problem points community the mode of PCI avoided.But because the secondary synchronization sequences SSS of Gong Zhan community must be identical, above-mentioned adjustment can only be by exchanging and realize with the PCI of different directions community, station, but this is easy to cause the mould 3 of PCI after adjustment and other adjacent cells of periphery identical, as shown in Figure 2, if there is isotype interference at other direction in the community that in Fig. 2, PCI is 5, no matter it and exchange with that in other Liang Ge communities, station, owing to all having upset original PCI overall planning, all can run into equally the problem of new isotype interference.
The at present planning of PCI and to optimize be mainly manual the carrying out of micro-judgment by network optimization personnel, not only inefficiency but also be difficult to ensure for irregular website layout and its effect of complex scene.
Summary of the invention
The object of this invention is to provide a kind of Physical Cell Identifier optimization method and device, according to the overall interference result of optimizing in region, adjust the Physical Cell Identifier of optimizing multiple communities in region.
To achieve these goals, the embodiment of the present invention provides a kind of Physical Cell Identifier optimization method, and described method comprises:
In the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determine the optimization region of the first area that at least comprises that described the first base station covers;
Calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Disturb result according to described mould 3, determine the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Configure the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
Above-mentioned Physical Cell Identifier optimization method, wherein, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Nei Ge community, the described optimization of described calculating region is under different Physical Cell Identifier facilities, and the second community disturbs result specifically to comprise to the mould 3 of described the first community:
Reference Signal Received Power value to Nei Ge community, described optimization region is sampled, and obtains multiple the first sampled points taking described the first community as Serving cell;
According to the information of described multiple the first sampled points, calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
Probability of interference value summation by described the second community to described the first community, obtains described the second community the mould 3 of described the first community is disturbed to result.
Above-mentioned Physical Cell Identifier optimization method, wherein, when described the first community is Serving cell, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
Above-mentioned Physical Cell Identifier optimization method, wherein, described probability of interference value is specially:
The ratio of the number of the second sampled point in described multiple the first sampled point numbers, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold.
Above-mentioned Physical Cell Identifier optimization method, wherein, described target configuration result is specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
Above-mentioned Physical Cell Identifier optimization method, wherein, described optimization region also comprises the second area that the neighbor base station of described the first base station covers.
Above-mentioned Physical Cell Identifier optimization method, wherein, Nei Ge community, the described optimization of described calculating region is under different Physical Cell Identifier facilities, and the second community disturbs result to be specially to the mould 3 of described the first community:
Obtain Nei Ge community, described optimization region under different Physical Cell Identifier facilities by ergodic algorithm or genetic algorithm, result is disturbed to the mould 3 of described the first community in the second community.
To achieve these goals, the embodiment of the present invention also provides a kind of Physical Cell Identifier optimization device, and described device comprises:
Optimize region determination module, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determine the optimization region of the first area that at least comprises described the first base station covering;
Computing module, for calculating Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Configuration result determination module, for disturbing result according to described mould 3, determines the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Configuration module, for configuring the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
Above-mentioned Physical Cell Identifier optimization device, wherein, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Described computing module specifically comprises:
Sampling module, for the Reference Signal Received Power value of Nei Ge community, described optimization region is sampled, obtains multiple the first sampled points taking described the first community as Serving cell;
The first calculating sub module, for according to the information of described multiple the first sampled points, calculates Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
The second calculating sub module, for the probability of interference value summation to described the first community by described the second community, obtains the second community the mould 3 of described the first community is disturbed to result.
Above-mentioned Physical Cell Identifier optimization device, wherein, when described the first community is Serving cell, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
Above-mentioned Physical Cell Identifier optimization device, wherein, described probability of interference value is specially:
The ratio of the number of the second sampled point in described multiple the first sampled point numbers, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold.
Above-mentioned Physical Cell Identifier optimization device, wherein, described target configuration result is specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
Above-mentioned Physical Cell Identifier optimization device, wherein, described optimization region also comprises the second area that the neighbor base station of described the first base station covers.
Above-mentioned Physical Cell Identifier optimization device, wherein, described computing module is specially:
Obtain Nei Ge community, described optimization region under different Physical Cell Identifier facilities by ergodic algorithm or genetic algorithm, result is disturbed to the mould 3 of described the first community in the second community.
The embodiment of the present invention, adopt the conventional definite mode of interference value in similar GSM and the optimization of TD network and structure optimization, for Physical Cell Identifier PCI common mode and two kinds of situations of non-common mode of community, in conjunction with minizone position relationship and covering overlapping degree, overall interference result in calculation optimization region, and according to disturbing result adjustment to optimize the Physical Cell Identifier of multiple communities in region, realized the rear region overall interference of optimizing of adjustment and be worth minimum target, in guarantee system, interference level is minimum.
Brief description of the drawings
Fig. 1 is the desirable planning chart of Physical Cell Identifier;
Fig. 2 is the optimal way schematic diagram of Physical Cell Identifier in prior art;
The schematic flow sheet of the Physical Cell Identifier optimization method that Fig. 3 provides for the embodiment of the present invention;
The optimization region that Fig. 4 provides for the embodiment of the present invention and the division schematic diagram of protection zone;
The structural representation of the Physical Cell Identifier optimization device that Fig. 5 provides for the embodiment of the present invention.
Embodiment
For technical problem, technical scheme and advantage that the embodiment of the present invention will be solved are clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The embodiment of the present invention provides a kind of Physical Cell Identifier optimization method, and described method as shown in Figure 3, comprising:
Step 31, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determines the optimization region of the first area that at least comprises that described the first base station covers;
Step 32, calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Step 33, disturbs result according to described mould 3, determines the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Step 34, configures the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
In embodiments of the present invention, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, Nei Ge community, calculation optimization region is under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, according to the Physical Cell Identifier of multiple communities in the overall interference result adjustment optimization region of optimizing in region, reach object of the present invention.
Introduce in detail step by step the Physical Cell Identifier optimization method that the embodiment of the present invention provides below.
First perform step 31, generally, a base station is divided into 3 communities by we, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, mould 3 disturbs the interference that refers to that Physical Cell Identifier PCI mould 3 between adjacent area is identical and cause, and determines the optimization region of the first area that at least comprises that described the first base station covers.
In embodiments of the present invention, determine and optimize behind region, only the PCI that optimizes Nei community, region is optimized to adjustment, relatively, the community PCI of the peripheral region of described optimization community does not adjust.In practical operation, when having determined behind optimization region, the microzonation of optimizing 2 to 3 layers of area peripheral edge can be divided into protection zone, as shown in Figure 2, in the time that optimization Nei community, region PCI optimizes and revises, in protection zone, the PCI of community does not do and changes.
Determining behind optimization region, enter step 32, calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community.
Wherein, preferably, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Step 32 specifically comprises:
Step 321, samples to the Reference Signal Received Power value of Nei Ge community, described optimization region, obtains multiple the first sampled points taking described the first community as Serving cell;
Step 322, according to the information of described multiple the first sampled points, calculates Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
Step 323, by described the second community probability of interference value summation to described the first community under different Physical Cell Identifier facilities of Nei Ge community, described optimization region,, obtain described the second community the mould 3 of described the first community disturbed to result
Step 321 is by the traversal frequency sweep to optimization region (or switching statistics), measurement report MR data acquisition, in the sampled point obtaining (synchronization collects), be defined as Serving cell with reference to signal received power RSRP Qiang community, the first sampled point that corresponding sampled point Wei Gai community is Serving cell, be described the first community while being Serving cell, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
Example is as shown in table 1, and WeiA1 community is as two the first sampled points corresponding to Serving cell:
Two the first sampled points of table 1 WeiA1 community
Step 32 also comprises:
Step 322, according to the information of described multiple the first sampled points, calculates Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
Nei Ge community, described optimization region has 6 at different Physical Cell Identifier facilities
mkind, wherein m is the base station number of optimizing in region, illustrates as follows.
< example 1>
As shown in Figure 5, optimizing region is the region that base station A covers, and base station A comprises 3 communities, is respectively: community A1, A2He community, community A3.
The PCI configuring condition of optimizing so community in region has 6 kinds, and m=1 is as shown in table 2.
| ? | Mould 3 values are 0 | Mould 3 values are 1 | Mould 3 values are 2 | Interference value |
| Former configuration | A1 | A2 | A3 | S |
| Prioritization scheme 1 | A2 | A1 | A3 | S1 |
| Prioritization scheme 2 | A3 | A1 | A2 | S2 |
| Prioritization scheme 3 | A1 | A3 | A2 | S3 |
| Prioritization scheme 4 | A2 | A3 | A1 | S4 |
| Prioritization scheme 5 | A3 | A2 | A1 | S5 |
Table 2 is optimized the PCI configuring condition of Nei Ge community, region
In the method providing in the embodiment of the present invention, need in calculation optimization region under different PCI configuring conditions the probability of interference value of the second community to described the first community.Also do not come to a conclusion in the Serving cell of TD-LTE network and the level difference value interval of neighboring interval at present, in embodiments of the present invention, preferably, ratio by the number of the second sampled point in described multiple the first sampled point numbers is defined as probability of interference value, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold, wherein, the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community.Illustrate as follows.
< example 2>
In table 1, provide LiaoA1 community as two the first sampled points corresponding to Serving cell, now, A1 is the first community, only having B1 community is (adjacent area, WeiA1 community, B1 community, the second community, value after the Physical Cell Identifier mould 3 of Qie Yu A1 community is identical), the probability of interference value P of the second community B1 to the first community A1
(A1, B1)for:
P
(A1, B1)the number of number/the first sampled point of the=the second sampled point, the second sampled point is the first sampled point that the difference of the level of the second community B1 and described the first A1 community, community is less than setting threshold.
Suppose that setting threshold W is 10dB, only there are two the first sampled points shown in table 1 A1 community as Serving cell: sampled point 1 and sampled point 2, wherein, only in sampled point 1, the difference of the level of the second community B1 and the first A1 community, community is less than setting threshold 10dB, optimize Nei Ge community, region PCI when constant, the second community B1 is specially the probability of interference value of the first community A1:
P
（A1，B1）=1/2=0.5。
When calculating Nei Ge community, described optimization region under different Physical Cell Identifier facilities, described the second community to the probability of interference value of described the first community after, execution step 323, probability of interference value summation by described the second community to described the first community, obtains described the second community the final mould 3 of described the first community is disturbed to result.
Now, execution step 33, disturbs result according to described mould 3, determines the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region.
Correspondingly, the result of target configuration described in step 33 is just specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
If former allocation plan interference value minimum, does not have better prioritization scheme.
In actual mechanical process, also can calculate the probability of interference value of San community to described the first community, San community is to optimize other whole communities except the first community in region, probability of interference value according to San community to described the first community, formation interference matrix is as shown in table 3, further, the probability of interference of all communities that have PCI mould 3 identical (conflict) in above-mentioned interference matrix is sued for peace, be defined as PCI mould 3 interference values.Be the total mould in i community 3 interference value S (i)=∑ P (A1, n), wherein n is all adjacent areas identical with cell i mould 3.
| ? | CELL?A1 | CELL?A2 | CELL?A3 | CELB1 | ……CELL?j |
| Community A1 | / | P(A1,A2) | P(A1,A3) | P(A1,B1) | ……P(A1,j) |
| Community A2 | P(A2,A1) | / | P(A2,A3) | P(A2,B1) | ……P(A2,j) |
| Community A3 | P(A3,A1) | P(A3,A2) | / | P(A3,B1) | ……P(A3,j) |
| Community B1 | P(B1,A1) | P(B1,A2) | P(B1,A3) | / | ……P(B1,j) |
| …… | …… | …… | …… | …… | ………… |
| CELL?i | P(i,1) | P(i,2) | P(i,3) | P(i,B1) | ……P(i,j) |
Table 3 interference matrix
Wherein P
(i, j)represent, in first sample point of cell i as service area, to occur that the level of community j and community j and cell i is less than the ratio of the second sample point of setting threshold, interval be (0,1].
Illustrate as follows.
< example 3>
Suppose that setting threshold W is 10dB, only there are two the first sampled points shown in table 1 A1 community as Serving cell: sampled point 1 and sampled point 2:
P(A1,A2)=2/2=1；
P(A1,A3)=2/2=1；
P (A1, B1)=1/2=0.5 (one of them sampled point level difference value is greater than W);
P (A1, B2)=0/2=0 (sampled point level difference value is greater than W);
P (A1, C2)=0/2=0 (sampled point level difference value is greater than W);
Thus, can the be optimized correlation interference matrix of all communities in region.
Above-mentioned sample data is because only have B1 community identical with A1 mould 3, S (A1)=P (A1, B1)=0.5.
If the PCI value of B1 and B2 is exchanged, there is S (A1)=P (A1, B2)=0, just realize the object that the embodiment of the present invention is carried out PCI optimization.
In said method, mention, optimize the first area that region at least comprises that the first base station covers, more time, described optimization is not limited in this in region, also comprises the second area of the neighbor base station covering of described the first base station.
In the time being multiple base station in optimization region, optimizing Nei Ge community, region and have 6 at different Physical Cell Identifier facilities
mkind, wherein m is the base station number of optimizing in region.Can find out, in the time that the numerical value of m is larger, operand page increases substantially, and now can calculate or genetic algorithm (set just when calculating thresholding and regulate calculating pressure) is calculated by traversal.
When disturbing result according to described mould 3, determine after the target configuration result of Physical Cell Identifier of Nei Ge community, described optimization region, perform step 34, configure the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
The embodiment of the present invention; disturb result to contrast by the mould 3 of optimizing all PCI schemes in base station, region and the generation of base station, protection zone; disturb accumulative total by community correlation; obtain the PCI scheme of least interference value; thereby the possibility of producing new interference after fundamentally avoiding Liao Gongzhan community PSS to adjust, has realized PCI global optimization.
The embodiment of the present invention also provides a kind of Physical Cell Identifier optimization device, and described device as shown in Figure 5, comprising:
Optimize region determination module, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determine the optimization region of the first area that at least comprises described the first base station covering;
Computing module, for calculating Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Configuration result determination module, for disturbing result according to described mould 3, determines the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Configuration module, for configuring the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
Above-mentioned Physical Cell Identifier optimization device, wherein, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Described computing module specifically comprises:
Sampling module, for the Reference Signal Received Power value of Nei Ge community, described optimization region is sampled, obtains multiple the first sampled points taking described the first community as Serving cell;
The first calculating sub module, for according to the information of described multiple the first sampled points, calculates Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
The second calculating sub module, for the probability of interference value summation to described the first community by described the second community, obtains the second community the mould 3 of described the first community is disturbed to result.
Above-mentioned Physical Cell Identifier optimization device, wherein, when described the first community is Serving cell,, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
Above-mentioned Physical Cell Identifier optimization device, wherein, described probability of interference value is specially:
The ratio of the number of the second sampled point in described multiple the first sampled point numbers, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold.
Above-mentioned Physical Cell Identifier optimization device, wherein, described target configuration result is specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
Above-mentioned Physical Cell Identifier optimization device, wherein, described optimization region also comprises the second area that the neighbor base station of described the first base station covers.
Above-mentioned Physical Cell Identifier optimization device, wherein, described computing module is specially:
Obtain Nei Ge community, described optimization region under different Physical Cell Identifier facilities by ergodic algorithm or genetic algorithm, result is disturbed to the mould 3 of described the first community in the second community.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. a Physical Cell Identifier optimization method, is characterized in that, described method comprises:
In the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determine the optimization region of the first area that at least comprises that described the first base station covers;
Calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Disturb result according to described mould 3, determine the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Configure the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
2. Physical Cell Identifier optimization method as claimed in claim 1, is characterized in that, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Nei Ge community, the described optimization of described calculating region is under different Physical Cell Identifier facilities, and the second community disturbs result specifically to comprise to the mould 3 of described the first community:
Reference Signal Received Power value to Nei Ge community, described optimization region is sampled, and obtains multiple the first sampled points taking described the first community as Serving cell;
According to the information of described multiple the first sampled points, calculate Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
Probability of interference value summation by described the second community to described the first community, obtains described the second community the mould 3 of described the first community is disturbed to result.
3. Physical Cell Identifier optimization method as claimed in claim 2, is characterized in that, when described the first community is Serving cell, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
4. Physical Cell Identifier optimization method as claimed in claim 2, is characterized in that, described probability of interference value is specially:
The ratio of the number of the second sampled point in described multiple the first sampled point numbers, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold.
5. Physical Cell Identifier optimization method as claimed in claim 2, is characterized in that, described target configuration result is specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
6. the Physical Cell Identifier optimization method as described in claim 1 to 5 any one, is characterized in that, described optimization region also comprises the second area that the neighbor base station of described the first base station covers.
7. Physical Cell Identifier optimization method as claimed in claim 6, is characterized in that, Nei Ge community, the described optimization of described calculating region is under different Physical Cell Identifier facilities, and the second community disturbs result to be specially to the mould 3 of described the first community:
Obtain Nei Ge community, described optimization region under different Physical Cell Identifier facilities by ergodic algorithm or genetic algorithm, result is disturbed to the mould 3 of described the first community in the second community.
8. a Physical Cell Identifier optimization device, is characterized in that, described device comprises:
Optimize region determination module, in the time detecting that the first community under the first base station exists the mould 3 of Physical Cell Identifier to disturb, determine the optimization region of the first area that at least comprises described the first base station covering;
Computing module, for calculating Nei Ge community, described optimization region under different Physical Cell Identifier facilities, result is disturbed to the mould 3 of described the first community in the second community, wherein said the second community is the adjacent area of described the first community, and identical with the value after the Physical Cell Identifier mould 3 of described the first community;
Configuration result determination module, for disturbing result according to described mould 3, determines the target configuration result of the Physical Cell Identifier of Nei Ge community, described optimization region;
Configuration module, for configuring the Physical Cell Identifier of Nei Ge community, described optimization region by described target configuration result.
9. Physical Cell Identifier optimization device as claimed in claim 8, is characterized in that, described mould 3 disturb result be specially the probability of interference of described the second community to described the first community and;
Described computing module specifically comprises:
Sampling module, for the Reference Signal Received Power value of Nei Ge community, described optimization region is sampled, obtains multiple the first sampled points taking described the first community as Serving cell;
The first calculating sub module, for according to the information of described multiple the first sampled points, calculates Nei Ge community, described optimization region under different Physical Cell Identifier facilities, the probability of interference value of described the second community to described the first community;
The second calculating sub module, for the probability of interference value summation to described the first community by described the second community, obtains the second community the mould 3 of described the first community is disturbed to result.
10. Physical Cell Identifier optimization device as claimed in claim 9, is characterized in that, when described the first community is Serving cell, the Reference Signal Received Power value of described the first community is maximum in described the first sampled point.
11. Physical Cell Identifier optimization devices as claimed in claim 9, is characterized in that, described probability of interference value is specially:
The ratio of the number of the second sampled point in described multiple the first sampled point numbers, described the second sampled point is the first sampled point that the difference of the level of described the second community and described the first community is less than setting threshold.
12. Physical Cell Identifier optimization devices as claimed in claim 9, is characterized in that, described target configuration result is specially:
The configuring condition of the Physical Cell Identifier of the probability of interference of described the second community to described the first community and hour the most corresponding Nei Ge community, described optimization region.
13. Physical Cell Identifier optimization devices as described in claim 8 to 12 any one, is characterized in that, described optimization region also comprises the second area that the neighbor base station of described the first base station covers.
14. Physical Cell Identifier optimization devices as claimed in claim 13, is characterized in that, described computing module is specially:
Obtain Nei Ge community, described optimization region under different Physical Cell Identifier facilities by ergodic algorithm or genetic algorithm, result is disturbed to the mould 3 of described the first community in the second community.
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