CN104144430B - A kind of Physical Cell Identifier optimization method and device - Google Patents
A kind of Physical Cell Identifier optimization method and device Download PDFInfo
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Abstract
The invention provides a kind of Physical Cell Identifier optimization method and device, methods described to include：When detecting that the first community under first base station has the interference of mould 3 of Physical Cell Identifier, it is determined that the optimization region of the first area including at least first base station covering；Each cell in the optimization region is calculated under different Physical Cell Identifier facilities, second community disturbs result to the mould 3 of the first community, wherein described second community is the adjacent area of the first community, and identical with the value after the Physical Cell Identifier mould 3 of the first community；Result is disturbed according to the mould 3, determines the target configuration result of the Physical Cell Identifier of each cell in the optimization region；By the Physical Cell Identifier of each cell in the target configuration result configuration optimization region.The present invention can be according to the overall interference result in optimization region, the Physical Cell Identifier of multiple cells in adjusting and optimizing region.
Description
Technical field
The present invention relates to wireless technical field, more particularly to a kind of Physical Cell Identifier optimization method and device.
Background technology
Timesharing Long Term Evolution TD-LTE system is using mechanism such as interference randomization, interference elimination, interference coordinations come effectively
Control co-channel interference.In LTE system, many 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, therefore PCI is planned
Reasonability it is critically important.If PCI planning is bad, bigger adjacent area can be caused to disturb, so as to reduce cell throughout, increase
Propagation delay time.For example in order to avoid the main synchronizing sequence PSS between neighbor cell is identical, need to consider PCI moulds 3 when planning PCI
PCI distribution, and PSS it is identical caused by interference be one of main source of current LTE system internal interference.
TD-SCDMA system uses N frequency point networkings, and common signal channel can realize the alien frequencies multiplexing of N number of frequency, dry to reduce
Disturb.And in TD-LTE system, under the complete identical networking of control channel, interference is more serious.For reference signal RS, TD-LTE
System is in the case where 2 antenna ports configure, it is possible to achieve RS positions are staggered when PCI moulds 3 do not wait.Under network zero load, RS
Signal is equivalent to the inter-frequency networking that N is 3；But under network full load conditions, MPS process of the RS signals by other cell data domains
Enhancing technology RE interference, it is actual equivalent to the identical networking that N is 1.
Preferable PCI planning charts are as shown in Figure 1.
MPS process in real network planning can not possibly be as so regular such as the cell arrangement in Fig. 1, but must examine
Considering mould 3 and the identical PCI of mould 6 can not distribute in the cell in direct air exercise and with station.
By test it can be found that some can be positioned as the network problem disturbed in system, peripheral cell mistake is being eliminated
After covering problem, should now check the PCI of peripheral cell, be confirmed whether to exist mould 3 between the PCI of adjacent area it is identical caused by do
Disturb.Emphasis should be noted that the longer neighbor cell of those adjacent boundaries, avoid the value of PCI moulds 3 equal as far as possible in-between.
Simultaneously antenna-feedback system it is reversed can cause cell overlay area it is different from planning, will also result in similar to the problem of.It is logical
When crossing drive test or the PCI of drive test post analysis serving cell gets figure ready and can be very easy to find in each cell coverage area in certain base station
Whether PCI values identical with layout data, if there is reverse situation, it is likely that be due to antenna-feedback system it is reversed caused by.
Usual above-mentioned PCI interference problems can be being avoided by way of simply adjusting the PCI of problem points cell.But
The secondary synchronization sequences SSS for being due to co-sited cell must be identical, and above-mentioned adjustment can only be mutual by the PCI with station different directions cell
Realization is changed, but this easily causes the PCI after adjustment and the mould 3 of other adjacent cells of periphery is identical, if as shown in Fig. 2
The cell that PCI is 5 in Fig. 2 exists in other direction to be disturbed with mould, no matter it and with that exchange stood in other two cells,
Due to having upset original PCI overall plannings, the problem of new same mould disturbs all can be equally run into.
At present PCI planning and optimization mainly carried out by hand by the micro-judgment of network optimization personnel, not only efficiency is low
It is lower and for irregular website layout and its effect of complex scene it is difficult to ensure that.
The content of the invention
It is an object of the invention to provide a kind of Physical Cell Identifier optimization method and device, according to the entirety in optimization region
Result is disturbed, the Physical Cell Identifier of multiple cells in adjusting and optimizing region.
To achieve these goals, the embodiments of the invention provide a kind of Physical Cell Identifier optimization method, methods described
Including：
When detecting that the first community under first base station has the interference of mould 3 of Physical Cell Identifier, it is determined that comprising at least
The optimization region of the first area of the first base station covering；
Each cell in the optimization region is calculated under different Physical Cell Identifier facilities, second community is to institute
State first community mould 3 disturb result, wherein the second community be the first community adjacent area, and with the first community
Physical Cell Identifier mould 3 after value it is identical；
Result is disturbed according to the mould 3, determines the target configuration of the Physical Cell Identifier of each cell in the optimization region
As a result；
By the Physical Cell Identifier of each cell in the target configuration result configuration optimization region.
Above-mentioned Physical Cell Identifier optimization method, wherein, the interference of mould 3 result is specially the second community to institute
State the sum of the probability of interference of first community；
Each cell calculated in the optimization region is under different Physical Cell Identifier facilities, second community
Result is disturbed to specifically include the mould 3 of the first community：
The Reference Signal Received Power value of each cell in the optimization region is sampled, obtained with the first community
For multiple first sampled points of serving cell；
According to the information of the multiple first sampled point, each cell calculated in the optimization region is small in different physics
Under area's mark facilities, probability of interference value of the second community to the first community；
The second community is summed to the probability of interference value of the first community, obtains the second community to described the
The mould 3 of one cell disturbs result.
Above-mentioned Physical Cell Identifier optimization method, wherein, when the first community is serving cell, the first community
Reference Signal Received Power value it is maximum in first sampled point.
Above-mentioned Physical Cell Identifier optimization method, wherein, the probability of interference value is specially：
Ratio of the number of second sampled point in the multiple first sampled point number, second sampled point is described
Second community and the difference of the level of the first community are less than the first sampled point of given threshold.
Above-mentioned Physical Cell Identifier optimization method, wherein, the target configuration result is specially：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in it is each
The configuring condition of the Physical Cell Identifier of cell.
Above-mentioned Physical Cell Identifier optimization method, wherein, the optimization region is also neighbouring including the first base station
The second area of base station covering.
Above-mentioned Physical Cell Identifier optimization method, wherein, each cell calculated in the optimization region is in difference
Physical Cell Identifier facilities under, second community disturbs the mould 3 of the first community result to be specially：
Each cell optimized in region is obtained in different Physical Cell Identifier by ergodic algorithm or genetic algorithm
Under facilities, second community disturbs result to the mould 3 of the first community.
To achieve these goals, the embodiment of the present invention additionally provides a kind of Physical Cell Identifier optimization device, the dress
Put including：
Optimize area determination module, detect that the first community under first base station has the mould of Physical Cell Identifier for working as
During 3 interference, it is determined that the optimization region of the first area including at least first base station covering；
Computing module, for calculating each cell in the optimization region in different Physical Cell Identifier facilities
Under, second community disturbs result to the mould 3 of the first community, wherein the second community is the adjacent area of the first community,
It is and identical with the value after the Physical Cell Identifier mould 3 of the first community；
Configuration result determining module, for disturbing result according to the mould 3, determine the thing of each cell in the optimization region
Manage the target configuration result of cell ID；
Configuration module, for being marked by the physical area of each cell in the target configuration result configuration optimization region
Know.
Above-mentioned Physical Cell Identifier optimization device, wherein, the interference of mould 3 result is specially the second community to institute
State the sum of the probability of interference of first community；
The computing module specifically includes：
Sampling module, for being sampled to the Reference Signal Received Power value of each cell in the optimization region, obtain
Multiple first sampled points using the first community as serving cell；
First calculating sub module, for the information according to the multiple first sampled point, calculate in the optimization region
Each cell is under different Physical Cell Identifier facilities, probability of interference value of the second community to the first community；
Second calculating sub module, for the second community to be summed to the probability of interference value of the first community, obtain
Second community disturbs result to the mould 3 of the first community.
Above-mentioned Physical Cell Identifier optimization device, wherein, when the first community is serving cell, the first community
Reference Signal Received Power value it is maximum in first sampled point.
Above-mentioned Physical Cell Identifier optimization device, wherein, the probability of interference value is specially：
Ratio of the number of second sampled point in the multiple first sampled point number, second sampled point is described
Second community and the difference of the level of the first community are less than the first sampled point of given threshold.
Above-mentioned Physical Cell Identifier optimization device, wherein, the target configuration result is specially：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in it is each
The configuring condition of the Physical Cell Identifier of cell.
Above-mentioned Physical Cell Identifier optimization device, wherein, the optimization region is also neighbouring including the first base station
The second area of base station covering.
Above-mentioned Physical Cell Identifier optimization device, wherein, the computing module is specially：
Each cell optimized in region is obtained in different Physical Cell Identifier by ergodic algorithm or genetic algorithm
Under facilities, second community disturbs result to the mould 3 of the first community.
The embodiment of the present invention, determined using the interference value commonly used in similar GSM and TD networks optimization and structure optimization
Mode, two kinds of situations of Physical Cell Identifier PCI common modes and non-common mode for cell, with reference to minizone position relationship and covering
Overlapping degree, the overall interference result in calculation optimization region, and according to multiple cells in interference result adjusting and optimizing region
Physical Cell Identifier, optimize the minimum target of region overall interference value after realizing adjustment, interference level is minimum in guarantee system.
Brief description of the drawings
Fig. 1 is the preferable planning chart of Physical Cell Identifier；
Fig. 2 is the optimal way schematic diagram of Physical Cell Identifier in the prior art；
Fig. 3 is the schematic flow sheet of Physical Cell Identifier optimization method provided in an embodiment of the present invention；
Fig. 4 is the division schematic diagram in optimization region and protection zone provided in an embodiment of the present invention；
Fig. 5 is the structural representation that Physical Cell Identifier provided in an embodiment of the present invention optimizes device.
Embodiment
To make technical problems to be solved of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
The embodiments of the invention provide a kind of Physical Cell Identifier optimization method, methods described as shown in figure 3, including：
Step 31, when detecting that the first community under first base station has the interference of mould 3 of Physical Cell Identifier, it is determined that extremely
Include the optimization region of the first area of first base station covering less；
Step 32, each cell in the optimization region is calculated under different Physical Cell Identifier facilities, second
Cell disturbs result to the mould 3 of the first community, wherein the second community is the adjacent area of the first community, and with it is described
Value after the Physical Cell Identifier mould 3 of first community is identical；
Step 33, result is disturbed according to the mould 3, determines the mesh of the Physical Cell Identifier of each cell in the optimization region
Mark configuration result；
Step 34, by the Physical Cell Identifier of each cell in the target configuration result configuration optimization region.
In embodiments of the present invention, when detect the first community under first base station exist Physical Cell Identifier mould 3 it is dry
When disturbing, each cell in calculation optimization region is under different Physical Cell Identifier facilities, and second community is to described first
The mould 3 of cell disturbs result, small according to the physics of multiple cells in the overall interference result adjusting and optimizing region in optimization region
Area identifies, and has reached the purpose of the present invention.
Physical Cell Identifier optimization method provided in an embodiment of the present invention is discussed in detail step by step below.
Step 31 is first carried out, generally, a base station is divided into 3 cells by us, when detecting the first base
When the mould 3 that first community under standing has Physical Cell Identifier disturbs, the interference of mould 3 refers to Physical Cell Identifier PCI between adjacent area
Disturbed caused by mould 3 is identical, it is determined that the optimization region of the first area including at least first base station covering.
In embodiments of the present invention, it is determined that behind optimization region, tune only is optimized to the PCI of the cell in optimization region
Whole, relatively, the cell PCI of the peripheral region of the optimization cell does not adjust.In practical operation, optimize area when determining
Behind domain, the cell for optimizing 2 to 3 layers of area peripheral edge can be divided into protection zone, as shown in Fig. 2 small in optimization region
The PCI of cell, which is not done, when area PCI is optimized and revised, in protection zone changes.
After optimization region is determined, into step 32, each cell in the optimization region is calculated in different physics
Under cell ID facilities, second community disturbs result to the mould 3 of the first community, wherein the second community is described
The adjacent area of first community, and it is identical with the value after the Physical Cell Identifier mould 3 of the first community.
Wherein it is preferred to it is specially probability of interference of the second community to the first community that the mould 3, which disturbs result,
Sum；
Step 32 specifically includes：
Step 321, the Reference Signal Received Power value of each cell in the optimization region is sampled, obtained with described
First community is multiple first sampled points of serving cell；
Step 322, according to the information of the multiple first sampled point, each cell in the optimization region is calculated in difference
Physical Cell Identifier facilities under, probability of interference value of the second community to the first community；
Step 323, by each cell in the optimization region described the under different Physical Cell Identifier facilities
Two cells are summed to the probability of interference value of the first community, obtain the second community and the mould 3 of the first community is disturbed
As a result
Step 321 is being obtained by the traversal frequency sweep (or switching counts) to optimizing region, measurement report MR data acquisitions
Sampled point（Synchronization collects）In, it is serving cell by cell definitions most strong Reference Signal Received Power RSRP,
Corresponding sampled point is the first sampled point that the cell is serving cell, i.e., when described first community is serving cell, described
The Reference Signal Received Power value of one cell is maximum in first sampled point.
Such as shown in table 1, be A1 cells as two the first sampled points corresponding to serving cell：
Table 1 is two the first sampled points of A1 cells
Step 32 also includes：
Step 322, according to the information of the multiple first sampled point, each cell in the optimization region is calculated in difference
Physical Cell Identifier facilities under, probability of interference value of the second community to the first community；
Each cell in the optimization region shares 6 in different Physical Cell Identifier facilitiesmKind, wherein m is excellent
Change the base station number in region, be illustrated below.
<Example 1>
As shown in figure 4, optimization region is the region of base station A coverings, base station A includes 3 cells, is respectively：It is cell A1, small
Area A2 and cell A3.
The PCI configuring conditions for so optimizing cell in region share 6 kinds, m=1, as shown in table 2.
| The value of mould 3 is 0 | The value of mould 3 is 1 | The value of mould 3 is 2 | Interference value | |
| First wife puts | 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 optimizes the PCI configuring conditions of each cell in region
, it is necessary in calculation optimization region under different PCI configuring conditions in method provided in an embodiment of the present invention, second is small
Probability of interference value of the area to the first community.The level difference value section of the serving cell of TD-LTE networks and neighboring interval is also at present
Do not come to a conclusion, in embodiments of the present invention, it is preferable that by the number of the second sampled point in the multiple first sampled point number
Ratio be defined as probability of interference value, second sampled point is the second community and the difference of the level of the first community
Less than the first sampled point of given threshold, wherein, second community be the first community adjacent area, and with the first community
Value after Physical Cell Identifier mould 3 is identical.It is illustrated below.
<Example 2>
In table 1, A1 cells are given as two the first sampled points corresponding to serving cell, now, A1 is first small
Area, only B1 cells are second community（B1 cells are A1 cells adjacent area, and with the value after the Physical Cell Identifier mould 3 of A1 cells
It is identical）, then probability of interference value Ps of the second community B1 to first community A1（A1, B1）For：
P（A1, B1）The number of the sampled point of the number of=the second sampled point/first, the second sampled point is second community B1 and institute
The difference for stating the level of first community A1 cells is less than the first sampled point of given threshold.
It is assumed that given threshold W is 10dB, A1 cells only have two the first sampled points shown in table 1 as serving cell：Adopt
Sampling point 1 and sampled point 2, wherein, second community B1 and the level of first community A1 cells difference are less than only in sampled point 1
Given threshold 10dB, then when each cell PCI in optimization region is constant, probability of interference of the second community B1 to first community A1
Value is specially：
P（A1, B1）=1/2=0.5。
When calculate it is described optimization region in each cell under different Physical Cell Identifier facilities, described second
After cell is to the probability of interference value of the first community, step 323 is performed, the second community is done to the first community
Probable value summation is disturbed, the second community is obtained and result is disturbed to the final mould 3 of the first community.
Now, step 33 is performed, result is disturbed according to the mould 3, determines that the physics of each cell in the optimization region is small
The target configuration result of area's mark.
Correspondingly, target configuration result is specially just described in step 33：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in it is each
The configuring condition of the Physical Cell Identifier of cell.
Without more preferable prioritization scheme if former allocation plan interference value minimum.
In actual mechanical process, probability of interference value of the 3rd cell to the first community, the 3rd cell can also be calculated
For other whole cells in optimization region in addition to first community, the probability of interference according to the 3rd cell to the first community
Value, formation interference matrix is as shown in table 3, further, identical to PCI moulds 3 be present in above-mentioned interference matrix（Conflict）It is all
The probability of interference summation of cell, is defined as the interference value of PCI moulds 3.The i.e. total interference value S (i) of the mould 3=∑ P of i cells (A1,
N), wherein n is and all adjacent areas of the identical of cell i mould 3.
| CELL A1 | CELL A2 | CELL A3 | CELB1 | ……CELL j | |
| Cell A1 | / | P(A1,A2) | P(A1,A3) | P(A1,B1) | ……P(A1,j) |
| Cell A2 | P(A2,A1) | / | P(A2,A3) | P(A2,B1) | ……P(A2,j) |
| Cell A3 | P(A3,A1) | P(A3,A2) | / | P(A3,B1) | ……P(A3,j) |
| Cell 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) |
The interference matrix of table 3
Wherein P（I, j）Represent that cell i as in the first sample point of service area, cell j and cell j and cell i occurs
Level be less than given threshold the second sample point ratio, interval is（0,1].
It is illustrated below.
<Example 3>
It is assumed that given threshold W is 10dB, A1 cells only have two the first sampled points shown in table 1 as serving cell：Adopt
Sampling point 1 and sampled point 2, then：
P(A1,A2)=2/2=1；
P(A1,A3)=2/2=1；
P (A1, B1)=1/2=0.5 (one of sampled point level difference value is more than W)；
P (A1, B2)=0/2=0 (sampled point level difference value is more than W)；
P (A1, C2)=0/2=0 (sampled point level difference value is more than W)；
Thus, it is possible to obtain optimizing the correlation interference matrix of all cells in region.
Above-mentioned example data are because only that B1 cells are identical with A1 moulds 3, then S (A1)=P (A1, B1)=0.5.
If B1 and B2 PCI values exchanged, there is S (A1)=P (A1, B2)=0, be achieved that the embodiment of the present invention is carried out
The purpose of PCI optimizations.
Mention in the above-mentioned methods, optimization region comprises at least the first area of first base station covering, when more, institute
State and be not limited to that in optimization region, include the second area of the neighbor base station covering of the first base station.
When it is multiple base stations to optimize in region, each cell optimized in region sets feelings in different Physical Cell Identifier
Condition shares 6mKind, wherein m is the base station number in optimization region.As can be seen that when m numerical value is larger, operand page is significantly
Degree improves, and can now be counted by traveling through calculating or genetic algorithm (setting just when calculating thresholding regulating calculation pressure)
Calculate.
When disturbing result according to the mould 3, determine that the target of the Physical Cell Identifier of each cell in the optimization region is matched somebody with somebody
After putting result, step 34 is performed, by the Physical Cell Identifier of each cell in the target configuration result configuration optimization region.
The embodiment of the present invention, disturbed by mould 3 caused by optimizing all PCI schemes of origin base station and protection zone base station
As a result contrasted, carrying out interference by cell correlation adds up, and the PCI schemes of least interference value is obtained, so as to fundamentally
The possibility that new interference is produced after co-sited cell PSS is adjusted is avoided, realizes PCI global optimizations.
The embodiment of the present invention additionally provides a kind of Physical Cell Identifier optimization device, described device as shown in figure 5, including：
Optimize area determination module, detect that the first community under first base station has the mould of Physical Cell Identifier for working as
During 3 interference, it is determined that the optimization region of the first area including at least first base station covering；
Computing module, for calculating each cell in the optimization region in different Physical Cell Identifier facilities
Under, second community disturbs result to the mould 3 of the first community, wherein the second community is the adjacent area of the first community,
It is and identical with the value after the Physical Cell Identifier mould 3 of the first community；
Configuration result determining module, for disturbing result according to the mould 3, determine the thing of each cell in the optimization region
Manage the target configuration result of cell ID；
Configuration module, for being marked by the physical area of each cell in the target configuration result configuration optimization region
Know.
Above-mentioned Physical Cell Identifier optimization device, wherein, the interference of mould 3 result is specially the second community to institute
State the sum of the probability of interference of first community；
The computing module specifically includes：
Sampling module, for being sampled to the Reference Signal Received Power value of each cell in the optimization region, obtain
Multiple first sampled points using the first community as serving cell；
First calculating sub module, for the information according to the multiple first sampled point, calculate in the optimization region
Each cell is under different Physical Cell Identifier facilities, probability of interference value of the second community to the first community；
Second calculating sub module, for the second community to be summed to the probability of interference value of the first community, obtain
Second community disturbs result to the mould 3 of the first community.
Above-mentioned Physical Cell Identifier optimization device, wherein, when the first community is serving cell, described first is small
The Reference Signal Received Power value in area is maximum in first sampled point.
Above-mentioned Physical Cell Identifier optimization device, wherein, the probability of interference value is specially：
Ratio of the number of second sampled point in the multiple first sampled point number, second sampled point is described
Second community and the difference of the level of the first community are less than the first sampled point of given threshold.
Above-mentioned Physical Cell Identifier optimization device, wherein, the target configuration result is specially：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in it is each
The configuring condition of the Physical Cell Identifier of cell.
Above-mentioned Physical Cell Identifier optimization device, wherein, the optimization region is also neighbouring including the first base station
The second area of base station covering.
Above-mentioned Physical Cell Identifier optimization device, wherein, the computing module is specially：
Each cell optimized in region is obtained in different Physical Cell Identifier by ergodic algorithm or genetic algorithm
Under facilities, second community disturbs result to the mould 3 of the first community.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (14)
1. a kind of Physical Cell Identifier optimization method, it is characterised in that methods described includes：
When detecting that the first community under first base station has the interference of mould 3 of Physical Cell Identifier, it is determined that including at least described
The optimization region of the first area of first base station covering；
Each cell in the optimization region is calculated under different Physical Cell Identifier facilities, second community is to described the
The mould 3 of one cell disturbs result, wherein, it is specially that the second community is done to the first community that the mould 3, which disturbs result,
Disturb the sum of probability, the second community is the adjacent area of the first community, and with the Physical Cell Identifier mould 3 of the first community
Value afterwards is identical；
Result is disturbed according to the mould 3, determines the target configuration result of the Physical Cell Identifier of each cell in the optimization region；
By the Physical Cell Identifier of each cell in the target configuration result configuration optimization region.
2. Physical Cell Identifier optimization method as claimed in claim 1, it is characterised in that described to calculate in the optimization region
Each cell under different Physical Cell Identifier facilities, second community disturbs the mould 3 of the first community result tool
Body includes：
The Reference Signal Received Power value of each cell in the optimization region is sampled, obtained using the first community as clothes
Multiple first sampled points for cell of being engaged in；
According to the information of the multiple first sampled point, each cell calculated in the optimization region is marked in different physical areas
Know under facilities, probability of interference value of the second community to the first community；
The second community is summed to the probability of interference value of the first community, it is small to described first to obtain the second community
The mould 3 in area disturbs result.
3. Physical Cell Identifier optimization method as claimed in claim 2, it is characterised in that the first community is serving cell
When, the Reference Signal Received Power value of the first community is maximum in first sampled point.
4. Physical Cell Identifier optimization method as claimed in claim 2, it is characterised in that the probability of interference value is specially：
Ratio of the number of second sampled point in the multiple first sampled point number, second sampled point are described second
Cell and the difference of the level of the first community are less than the first sampled point of given threshold.
5. Physical Cell Identifier optimization method as claimed in claim 2, it is characterised in that the target configuration result is specific
For：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in each cell
Physical Cell Identifier configuring condition.
6. the Physical Cell Identifier optimization method as described in any one of claim 1 to 5, it is characterised in that the optimization region
The second area that also neighbor base station including the first base station covers.
7. Physical Cell Identifier optimization method as claimed in claim 6, it is characterised in that described to calculate in the optimization region
Each cell under different Physical Cell Identifier facilities, second community disturbs the mould 3 of the first community result tool
Body is：
Each cell in the optimization region is obtained by ergodic algorithm or genetic algorithm to set in different Physical Cell Identifier
In the case of, second community disturbs result to the mould 3 of the first community.
8. a kind of Physical Cell Identifier optimizes device, it is characterised in that described device includes：
Optimize area determination module, it is dry for the mould 3 of Physical Cell Identifier when the first community that detect under first base station be present
When disturbing, it is determined that the optimization region of the first area including at least first base station covering；
Computing module, for calculating each cell in the optimization region under different Physical Cell Identifier facilities, the
Two cells disturb result to the mould 3 of the first community, wherein, the interference of mould 3 result is specially the second community to institute
State the sum of the probability of interference of first community, the second community is the adjacent area of the first community, and with the first community
Value after Physical Cell Identifier mould 3 is identical；
Configuration result determining module, for disturbing result according to the mould 3, determine that the physics of each cell in the optimization region is small
The target configuration result of area's mark；
Configuration module, for the Physical Cell Identifier by each cell in the target configuration result configuration optimization region.
9. Physical Cell Identifier as claimed in claim 8 optimizes device, it is characterised in that the computing module specifically includes：
Sampling module, for being sampled to the Reference Signal Received Power value of each cell in the optimization region, obtain with institute
State multiple first sampled points that first community is serving cell；
First calculating sub module, for the information according to the multiple first sampled point, calculate each small in the optimization region
Area is under different Physical Cell Identifier facilities, probability of interference value of the second community to the first community；
Second calculating sub module, for the second community to be summed to the probability of interference value of the first community, obtain second
Cell disturbs result to the mould 3 of the first community.
10. Physical Cell Identifier as claimed in claim 9 optimizes device, it is characterised in that the first community is small to service
Qu Shi, the Reference Signal Received Power value of the first community are maximum in first sampled point.
11. Physical Cell Identifier as claimed in claim 9 optimizes device, it is characterised in that the probability of interference value is specially：
Ratio of the number of second sampled point in the multiple first sampled point number, second sampled point are described second
Cell and the difference of the level of the first community are less than the first sampled point of given threshold.
12. Physical Cell Identifier as claimed in claim 9 optimizes device, it is characterised in that the target configuration result is specific
For：
The second community to the probability of interference of the first community with it is minimum when the corresponding optimization region in each cell
Physical Cell Identifier configuring condition.
13. the Physical Cell Identifier optimization device as described in any one of claim 8 to 12, it is characterised in that the optimization area
The domain second area that also neighbor base station including the first base station covers.
14. Physical Cell Identifier as claimed in claim 13 optimizes device, it is characterised in that the computing module is specially：
Each cell in the optimization region is obtained by ergodic algorithm or genetic algorithm to set in different Physical Cell Identifier
In the case of, second community disturbs result to the mould 3 of the first community.
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| CN104507109B (en) * | 2014-12-22 | 2019-04-05 | 北京胜普多邦通信技术有限公司 | A method of the LTE cell PCI optimization based on MR measurement |
| CN105792242B (en) * | 2014-12-22 | 2020-01-21 | 中兴通讯股份有限公司 | Method and device for optimizing cell PCI |
| CN106612502B (en) * | 2015-10-22 | 2019-11-12 | 普天信息技术有限公司 | A kind of acquisition methods and system of Physical Cell Identifier PCI |
| CN106817186B (en) * | 2015-11-30 | 2019-05-10 | 中国移动通信集团广东有限公司 | A kind of method and device of Physical Cell Identifier PCI interference self-optimizing |
| CN106899980B (en) * | 2015-12-31 | 2019-03-29 | 中国移动通信集团设计院有限公司 | A kind of determination method and device of road overlapping coverage |
| CN107124727B (en) * | 2016-02-24 | 2020-05-12 | 中国移动通信集团福建有限公司 | PCI optimization method and device |
| CN107182062A (en) * | 2016-03-11 | 2017-09-19 | 中国移动通信集团广东有限公司 | Physical area optimization method and device in LTE network |
| CN105764069B (en) * | 2016-04-11 | 2019-05-03 | 长讯通信服务有限公司 | A kind of LTE network PCI planning Multipurpose Optimal Method |
| CN109561436B (en) * | 2017-09-26 | 2021-04-30 | 中国移动通信集团公司 | Physical layer cell identity (PCI) optimization method, equipment, computer readable storage medium and device |
| CN110830101B (en) * | 2018-08-10 | 2021-07-27 | 展讯半导体(南京)有限公司 | Cell ID determining and acquiring method, network equipment, terminal and readable medium |
| CN112243238B (en) * | 2019-07-17 | 2022-06-14 | 中国移动通信集团浙江有限公司 | Cell PCI optimization method, device, equipment and computer storage medium |
| CN112020005B (en) * | 2020-09-03 | 2022-08-16 | 中国联合网络通信集团有限公司 | Method, device and system for solving Long Term Evolution (LTE) network mode three-interference |
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