CN102082615B - Method and equipment for indentifying interference source cell and adjusting antenna downward inclination angle of cell - Google Patents

Method and equipment for indentifying interference source cell and adjusting antenna downward inclination angle of cell Download PDF

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CN102082615B
CN102082615B CN2009102386636A CN200910238663A CN102082615B CN 102082615 B CN102082615 B CN 102082615B CN 2009102386636 A CN2009102386636 A CN 2009102386636A CN 200910238663 A CN200910238663 A CN 200910238663A CN 102082615 B CN102082615 B CN 102082615B
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sub
frequency
interference
subjected
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CN102082615A (en
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于志文
啜钢
郭同文
刘圣
赵良毕
王文博
胡欲晓
李勇
李欣然
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China Mobile Group Beijing Co Ltd
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China Mobile Group Beijing Co Ltd
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Abstract

The invention discloses a method and equipment for indentifying an interference source cell and adjusting the antenna downward inclination angle of a cell. The main content is as follows: an interference model of inter-cell downlink pilot time slot (DwPTS) to uplink pilot time slot (UpPTS) is taken as a standard for an interference prioritization scheme; and an interfered cell and the interference source cell are determined according to the interference model, thus reducing the interference power of the interfered cell through adjusting the antenna downward inclination angle of the interference source cell, and reducing the inter-cell uplink synchronization interference under the condition of avoiding the problem existing in an UpPTS Shifting scheme exists.

Description

Determine the method and apparatus of the Downtilt of interference source sub-district, adjustment sub-district
Technical field
The present invention relates to the communications field, relate in particular to the method and apparatus of the Downtilt of a kind of definite interference source sub-district, adjustment sub-district.
Background technology
Have special time slot in the frame structure of TD-SCDMA, as shown in Figure 1, descending pilot frequency time slot (DwPTS) is protection time slot (GP) and uplink pilot time slot (UpPTS) afterwards.At base station A, because the down-bound pilot frequency signal of other same base station frequently arrives base station A through transmission after a while, therefore, when the uplink synchronizing signals (SYNC_UL) of base station A in uplink pilot time slot mobile terminal receive emission, also can receive other down-bound pilot frequency signal simultaneously with the frequency base station, the uplink synchronous interference problem occurs, finally may cause portable terminal access base station A failure.
In order to solve the uplink synchronous interference problem, the TD-SCDMA standard of CCSA has proposed uplink pilot time slot switching (UpPTS Shifting) scheme.The main thought of UpPTS Shifting scheme is: the uplink pilot time slot of base station A is passed a period of time backward, do not take uplink pilot time slot when making other down-bound pilot frequency signal arrive base station A, base station A is received the interference of uplink synchronizing signals with the down-bound pilot frequency signal of frequency base station to avoid other with the frequency base station.
Though can reducing uplink synchronous, UpPTS Shifting scheme disturbs, but, also there is following problem in UpPTS Shifting scheme: because in the UpPTS Shifting scheme, the uplink pilot time slot of base station A is passed a period of time backward can take business time-slots such as TS1 and TS2, therefore, meeting reduces transmission system institute energy loaded service amount, and promptly UpPTS Shifting scheme is that cost reduction uplink synchronous is disturbed to sacrifice the uplink capacity; Even solve the problem that the uplink capacity reduces by uplink pilot time slot and the synchronic crack of TS1 technology, owing to also can have interference between uplink pilot time slot and the TS1, therefore, the problem that can additionally cause uplink synchronous to disturb again.
Summary of the invention
The embodiment of the invention provides the method and apparatus of a kind of definite interference source sub-district, with the sub-district of determining UpPTS is caused interference.
The method of a kind of definite uplink pilot time slot UpPTS interference source sub-district, described method comprises:
In per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on UpPTS;
With the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence, greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district.
The equipment of a kind of definite uplink pilot time slot UpPTS interference source sub-district, described equipment comprises:
The interference power determination module is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on UpPTS;
Be subjected to the interfered cell determination module, be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Interference source sub-district determination module is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district.
The beneficial effect of the embodiment of the invention is as follows:
Since the embodiment of the invention with minizone DwPTS to the interference model of UpPTS foundation as the interference optimization scheme, determine to be subjected to interfered cell and interference source sub-district according to described interference model, therefore, the uplink synchronous that can reduce the minizone being handled in the interference source sub-district of accurately determining disturbs.
The embodiment of the invention also provides a kind of method and apparatus of adjusting the Downtilt of sub-district, to solve between the sub-district uplink synchronous interference problem that transmits and cause during in the UpPTS received signal at DwPTS.
A kind of method of adjusting the Downtilt of sub-district, described method comprises:
In per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on uplink pilot time slot UpPTS;
With the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence, greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district;
Adjust the Downtilt of interference source sub-district, wherein: after the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
A kind of equipment of adjusting the Downtilt of sub-district is characterized in that, described equipment comprises:
The interference power determination module is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on uplink pilot time slot UpPTS;
Be subjected to the interfered cell determination module, be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Interference source sub-district determination module is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district;
First adjusting module, be used to adjust the Downtilt of interference source sub-district, wherein: after the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
The beneficial effect of the embodiment of the invention is as follows:
Since the embodiment of the invention with minizone DwPTS to the interference model of UpPTS foundation as the interference optimization scheme, determine to be subjected to interfered cell and interference source sub-district according to described interference model, and then reduce being subjected to the interference power of interfered cell by the Downtilt of adjusting the interference source sub-district, under the situation of the problem of avoiding UpPTS Shifting scheme to exist, reduced the uplink synchronous of minizone and disturbed.
Description of drawings
Fig. 1 is a special time slot structural representation in the background technology;
Fig. 2 is a method schematic diagram of determining the interference source sub-district in the embodiment of the invention one;
Fig. 3 is a method schematic diagram of adjusting the Downtilt of sub-district in the embodiment of the invention two;
Fig. 4 is a method schematic diagram of adjusting the Downtilt of sub-district in the embodiment of the invention three;
Fig. 5 is the device structure schematic diagram that the embodiment of the invention five is determined the interference source sub-district;
Fig. 6 (a), 6(b) and 6(c) be the structural representation of equipment of adjusting the Downtilt of sub-district in the embodiment of the invention six.
Embodiment
In order to realize the object of the invention, the embodiment of the invention is measured the uplink synchronous interference of sub-district in twos, set up the interference model of the signal of DwPTS transmission between the sub-district to the UpPTS received signal, thereby orient the sub-district that is subjected to serious interference and as the sub-district of interference source, and then can be by the Downtilt as the sub-district in source is adjusted, the uplink synchronous that reduces between the sub-district is disturbed.
Below in conjunction with Figure of description the embodiment of the invention is described in detail.
As shown in Figure 2, for determining the method schematic diagram of interference source sub-district in the embodiment of the invention one, the method for present embodiment one may further comprise the steps:
Step 101: in per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the DwPTS emission interference power to another sub-district received signal on UpPTS.
Setting regions in this step can be the TD-SCDMA sub-district.
Corresponding base station, per three sub-districts has a plurality ofly with base station frequently in the setting regions, and the distance between the base station is not less than 22.5Km, forms the condition of disturbing between the sub-district to satisfy.
The signal transmission of sub-district is meant antenna transmission signal and the received signal by the sub-district.
At two sub-districts (cell i and sub-district j), sub-district j transmits at DwPTS, and this signal is gone up the arrival cell i through the UpPTS that is transmitted in after a while, takies the part or all of UpPTS of cell i; Similarly, cell i also can transmit at DwPTS, and this signal also can arrive sub-district j through transmission after a while on UpPTS, take the part or all of UpPTS of sub-district j.
Step 102: with the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell.
After the execution in step 101, can determine any one sub-district and be subjected to the disturbed condition of other sub-districts, and then in step 102, orient the sub-district that integral body is subjected to serious interference, be referred to as to be subjected to interfered cell at UpPTS.First threshold value here can rule of thumb be worth definite.
Step 103: determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence.
Greater than second threshold value, wherein second threshold value is less than first threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district, and second threshold value also can rule of thumb be worth definite.
By the method for the embodiment of the invention one, set up the model that minizone DwPTS and UpPTS transmission is disturbed, accurately the location is to other area interference serious disturbance cell-of-origins.
Embodiment two:
As shown in Figure 3, for adjusting the method schematic diagram of the Downtilt of sub-district in the embodiment of the invention two, the method for present embodiment two may further comprise the steps:
Step 201: in per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the DwPTS emission interference power to another sub-district received signal on UpPTS.
Step 202: with the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell.
Step 203: determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence.
Step 204: the Downtilt of adjusting the interference source sub-district.
After the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
In order to reduce the interference between the sub-district, need adjust the Downtilt of interference source sub-district, for example: by default a plurality of tilt angled downs are carried out emulation, determine an angle of declination that can reduce, utilize the angle of declination of determining to adjust the Downtilt of interference source sub-district the interference power that is subjected to interfered cell of correspondence.
Method by the embodiment of the invention two, set up the model that minizone DwPTS and UpPTS transmission is disturbed, Downtilt to the interference source sub-district is adjusted, and reaches reduction interference source sub-district with alternative UpPTS Shifting technology the uplink synchronous that is subjected to interfered cell is disturbed.Because the UpPTS of two pairs of TD-SCDMA network cells of embodiment of the invention interference positions and optimizes, the UpPTS that has fundamentally reduced the TD-SCDMA network disturbs.
Each step to the embodiment of the invention two is elaborated below.
It is as follows in the step 201 interference power to be carried out the mode of modeling:
Need in the step 201 to suppose to determine sub-district j interference power to the UpPTS received signal of cell i when DwPTS transmits, its calculating parameter can comprise the duration that sub-district j arrives the UpPTS that takies after the cell i at transmitting power and this signal of the signal of DwPTS emission.Particularly, determine interference power by following formula (1) and formula (2):
I i,j=Interference i,j×α i,j （1）
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji （2）
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
Suppose that the quantity of sub-district is M in the setting regions, then travel through in M the sub-district behind any two sub-districts execution formula (1) and formula (2), can access the interference matrix model shown in the following formula (3):
I = I 11 I 12 . . . I 1 M I 21 I 22 . . . L 2 M . . . . . . . . . I M 1 I M 2 . . . I MM - - - ( 3 )
Wherein, I I, iThe signal of DwPTS transmission of representing a certain sub-district self is to the interference power of UpPTS received signal.
In step 202, can utilize above-mentioned interference matrix model to determine to be subjected to interfered cell, specific practice is:
At first, the interference matrix model shown in the traversal formula (3) is sued for peace to each row element, obtains I i = Σ j = 1 M I i , j .
Interference power sum when each row element sum represents that a sub-district is subjected to other area interference.
Then, value and first threshold value that the summation of each row element is obtained compare, and write down greater than the row of first threshold value number.
Number determine to be subjected to interfered cell according to the row of record.
In this step, also can be according to I iDescending sequence arrangement is selected N maximum I iRow number, wherein, N is the positive integer that is not more than M.
The concrete mode of determining the interference source sub-district in step 203 is:
At first, determine to be subjected to a row element in the matrix of interfered cell in formula (3).
Then, respectively this row element and second threshold value being compared, if be not more than second threshold value, represent that the sub-district that the generation of this element correspondence disturbs is less to the interference that produced by interfered cell, is not the interference source sub-district; Otherwise, represent that the sub-district of the generation interference of this element correspondence is the interference source sub-district.
After being subjected to interfered cell to carry out aforesaid operations each, can obtain the interference source sub-district that each is subjected to the interfered cell correspondence.
Step 101～step 103 of embodiment one is identical with step 201～step 203 among the embodiment two.
Embodiment three:
The embodiment of the invention three is after embodiment two adjusts the angle of declination of interference source sub-district, further the frequency of interference source sub-district is adjusted, to reach the purpose that disturb the uplink synchronous of corresponding district further reduction interference source base station.
As shown in Figure 4, be the method schematic diagram of the embodiment of the invention three, wherein, step 301～step 304 is identical with step 204 with the step 201 of embodiment two.
Step 305: behind the Downtilt of adjusting the interference source sub-district, when also existing big uplink synchronous to disturb between the sub-district, adjust the frequency of interference source sub-district.
After the frequency of interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the frequency adjustment before to the interference power that is subjected to interfered cell of correspondence.
Behind the Downtilt of adjusting the interference source sub-district, also existing big uplink synchronous to disturb between the sub-district is meant: the Downtilt of interference source sub-district is adjusted to set angle (as the minimum value of angle of declination adjusting range), and after the Downtilt adjustment of interference source sub-district to the interference power that is subjected to interfered cell of correspondence greater than second threshold value.
After the execution in step 301～step 304, upgraded by interfered cell, promptly the part sub-district of determining in step 302 that is subjected to interfered cell is owing to adjust the Downtilt of the interference source sub-district of correspondence, the interference power sum that it is subjected to is less than first threshold value, therefore, this part sub-district no longer is to be subjected to interfered cell.
If after the Downtilt of interference source sub-district is adjusted, this interference source sub-district to the interference power that is subjected to interfered cell of correspondence also greater than second set point, then can execution in step 305, further reduce the interference power that be subjected to by interfered cell.
In present embodiment two, the concrete mode of adjusting the frequency of interference source sub-district is:
The first step: determine the available frequency set of described interference source sub-district.
In the present embodiment, all there is an available frequency set each sub-district, wherein comprises a plurality of frequencies.Be provided with the available frequency set that comprises three frequencies in the existing network, the frequency that use each sub-district in the network is in these three frequencies.
Second step: the frequency that does not adopt current interference source sub-district in gathering at described available frequency respectively, determine that the interference source sub-district is when using the frequency of described not employing, to the interference power that is subjected to interfered cell of correspondence.
In this step, travel through other frequencies that does not adopt current interference source sub-district in the available frequency set, determine the interference power that when using other frequencies, respectively corresponding district is caused.
The 3rd step: the interference power that is subjected to interfered cell to correspondence before respectively the frequency adjustment being carried out to the interference power that is subjected to interfered cell of correspondence and interference source sub-district in the interference source sub-district when using the described frequency that does not adopt compares.
Can the purpose of this step be the interference power that reduce when making an inventory other frequencies of use corresponding district, if can reduce interference power, then needs to carry out the frequency adjustment; Otherwise, just do not carry out necessity that frequency is adjusted.
The 4th step: determine a frequency that does not adopt according to comparative result, and utilize the described frequency of determining that does not adopt to adjust the frequency of described interference source sub-district.
The interference source sub-district before after the frequency adjustment interference power that is subjected to interfered cell of correspondence being carried out the frequency adjustment less than the interference source sub-district to the interference power that is subjected to interfered cell of correspondence.
If find to have a plurality of adjustable frequencies, then can therefrom choose one wantonly, or select the frequency of interference source sub-district the interference power minimum that is subjected to interfered cell of correspondence according to the comparative result in the 3rd step.
Further, the embodiment of the invention two is also considered after the frequency of an interference source sub-district is adjusted, the frequency that belongs to two other sub-district of same base station with this interference source sub-district also needs to adjust, and frequency that require to adjust the frequency of interference source sub-district and described other two sub-districts of adjustment simultaneously is different in twos, there to be the problem of strong interference between the sub-district of avoiding using same frequency.
Particularly, in the present embodiment two to belong to the frequency adjustment process of other two sub-districts of same base station as follows with the interference source sub-district:
The first step: determine first sub-district and second sub-district in described other two sub-districts.
Following two conditions are satisfied in first sub-district and second sub-district:
First condition: the first adjacent cells of cells quantity is more than the second adjacent cells of cells quantity.
Second condition: the main lobe angle mean value of first sub-district and neighbor cell is greater than the main lobe angle mean value of second sub-district and neighbor cell.
Because first sub-district has above-mentioned feature, therefore, need at first be the frequency that adjustment is determined in first sub-district, guarantee that first sub-district can be than the frequency of the second cell selecting optimum.
Second step: the frequency of determining each adjacent sub-district use of first sub-district.
More preferably, first adjacent cells of cells that relates in this step is to have the sub-district of multiplexing repulsion frequently together with first sub-district.
The 3rd step: at each frequency except that the frequency that the interference source sub-district is adjusted in the available frequency set, determine in first adjacent cells of cells quantity of the adjacent sub-district that a frequency in the frequency of use and the available frequency set except that the frequency of interference source sub-district adjustment is different respectively.
The 4th step: select the frequency that frequency need be adjusted as first sub-district in other frequencies from available frequency set except that the frequency of interference source sub-district adjustment, wherein: in first adjacent cells of cells, the quantity of the adjacent sub-district that the frequency of use is different with selecting frequency is maximum.
Because the not simultaneous interference of frequency of sub-district is less, therefore, this step wishes to be that a frequency is found in first sub-district, make the sub-district adjacent can use the frequency of first sub-district as few as possible with first sub-district, after that is to say that first subdistrict frequency point is adjusted, different with the frequency of neighbor cell as much as possible, reduce the purpose of disturbing to reach.
The 5th step: from the set of available frequency, remove the frequency that need adjust as the interference source sub-district and the frequency that need adjust as first sub-district other frequencies in frequency of selection, the frequency that need adjust as second sub-district.
By the scheme of the embodiment of the invention two, further reduced the synchronous interference of UpPTS between the sub-district, when the frequency that carries out the sub-district is adjusted, also the frequency with other two sub-districts of base station is adjusted, avoid producing extra interference.
Embodiment four:
The concrete excessively example of embodiment of the invention four-way is described the scheme of the embodiment of the invention two and embodiment three.
Suppose to exist in the setting regions in the present embodiment four 6 sub-districts, be respectively 1～sub-district, sub-district 6,1～sub-district, sub-district 3 belongs to the sub-district under the same base station, 4～sub-district, sub-district 6 belongs to the sub-district under the same base station, and the available frequency set of each sub-district is identical, available frequency set F={F1, F2, F3}.
The scheme of the embodiment of the invention four is as follows:
The first step: determine that the sub-district is at the transmitting power of DwPTS, the horizontal gain and the vertical gain of the path loss between the sub-district, each sub-district in twos, and obtain in 6 sub-districts by formula (1) and formula (2), interference power model between any two, as shown in Equation (4).
I = I 11 I 12 I 13 I 14 I 15 I 16 I 21 I 22 I 23 I 24 I 25 I 26 . . . . . . . . . I 61 I 62 I 63 I 64 I 65 I 66 - - - ( 4 )
Second step:, determine that sub-district 1 and sub-district 5 are to be subjected to interfered cell by to each row element summation of formula (4).
The 3rd step: first row and each element and second set point of fifth line in the formula (4) are compared, be set to 0 less than the element of second set point, the element that is not less than second set point is constant, obtain following two matrixes:
I 1=[0 0 0 I 14 0 I 16]
I 5=[0 0 I 53 0 0 0]
Above-mentioned two matrix notations: the interference source sub-district that is subjected to interfered cell 1 correspondence is sub-district 4 and sub-district 6, and the interference source sub-district that is subjected to interfered cell 5 correspondences is sub-district 3.
The 4th step: in order to reduce the interference that be subjected to by interfered cell 1, need to adjust the Downtilt of interference source sub-district 4, then determine sub-district 4 when the interference power to sub-district 1 is not more than second threshold value, the angle of declination that sub-district 4 need be adjusted.Suppose that the Downtilt before sub-district 4 is adjusted is α, then by determining can to reduce the interference power to sub-district 1 after the emulation testing when the Downtilt of sub-district 4 is adjusted into β, then the Downtilt with sub-district 4 is adjusted into β.
The method of Downtilt of adjusting sub-district 6 is identical with the adjustment at the Downtilt of sub-district 4.
Similarly, in order to reduce the interference that sub-district 5 is subjected to, adjust the Downtilt of sub-district 3.
Suppose that the interference power sum that sub-district 1 is subjected to is less than first threshold value by after the angle of declination adjustment, therefore, sub-district 1 no longer is to be subjected to interfered cell; And the interference power sum that sub-district 5 is subjected to still is not less than first threshold value, then needs to carry out follow-up frequency adjustment operation.
The 6th step: the frequency of supposing the 3 current uses of interference source sub-district is F1, is I to the interference power that is subjected to interfered cell 5 F1, the frequency of sub-district 3 can be adjusted into F2 or F3.
The 7th step: when frequency F2 is used in interference source sub-district 3, be I to the interference power that is subjected to interfered cell 5 F2When frequency F3 is used in interference source sub-district 3, be I to the interference power that is subjected to interfered cell 5 F3
The 8th step: determine interference source sub-district 3 adjusted frequencies according to following three kinds of comparative results:
1, I F1≤ I F2And I F1≤ I F3, expression interference source sub-district 3 uses frequency F1 to being subjected to the interference power minimum of interfered cell 5, does not need to adjust frequency;
2, I F2＜I F1≤ I F3|| I F2＜I F3≤ I F1, expression interference source sub-district 3 uses frequency F2 to being subjected to the interference power minimum of interfered cell 5, and the frequency of interference source sub-district 3 is adjusted into F2;
3, I F3＜I F1≤ I F2|| I F3＜I F2≤ I F1, expression interference source sub-district 3 uses frequency F3 to being subjected to the interference power minimum of interfered cell 5, and the frequency of interference source sub-district 3 is adjusted into F3.
The 9th step: the frequency of interference source sub-district 3 is adjusted into F3 by F1.
The tenth step: 1～sub-district, sub-district 3 is positioned at same base station, and therefore, after the frequency that uses when sub-district 3 was adjusted, the frequency of sub-district 1 and sub-district 2 also needed to adjust.
The 11 step: suppose the adjacent number of cells of the adjacent number of cells of sub-district 1 more than sub-district 2, the main lobe angle mean value of sub-district 1 and adjacent sub-district is greater than the main lobe angle mean value of sub-district 2 with adjacent sub-district.
The 12 step: determine to have the set of cells W of multiplexing repulsion frequently together with sub-district 1.
Suppose that sub-district 6 is the sub-districts among the set W, then following two conditions need be satisfied in sub-district 6:
First condition:
Distance between sub-district 1 and the sub-district 6 is not more than the maximum jamming range of sub-district 1 or the maximum jamming range of sub-district 6, promptly must satisfy formula (5) between sub-district 1 and the sub-district 6:
Distance(1,6)≤max(D 1,D 6) （5）
Wherein: the distance between Distance (1,6) expression sub-district 1 and the sub-district 6; D 1The maximum jamming range of expression sub-district 1; D 6The maximum jamming range of expression sub-district 6.
Second condition:
There is coincidence in the zone of the zone of sub-district 1 and sub-district 6, promptly must satisfy formula group (6) between sub-district 1 and the sub-district 6:
| Bearing ( 1 ) - Bearing ( 6 ) | ≤ 0.5 × [ HBWD ( 1 ) + HBWD ( 6 ) ] | Bearing ( 1 ) - Bearing ( 6 ) | ≥ 360 - 0.5 × [ HBWD ( 1 ) + HBWD ( 6 ) ] | Angle ( 1,6 ) - Bearing ( 1 ) | ≤ 0.5 × HBWD ( 1 ) | Angle ( 1,6 ) - Bearing ( 1 ) | ≥ 360 - 0.5 × HBWD ( 1 ) | Angle ( 1,6 ) - Bearing ( 6 ) | ≤ 0.5 × HBWD ( 6 ) | Angle ( 1,6 ) - Bearing ( 6 ) | ≥ 306 - 0.5 × HBWD ( 6 ) - - - ( 6 )
Wherein: the antenna azimuth of Bearing (1) expression sub-district 1; The antenna azimuth of Bearing (6) expression sub-district 6; The antenna angle of Angle (1,6) expression sub-district 1 and sub-district 6; The horizontal lobe width of antenna of HBWD (1) expression sub-district 1; The horizontal lobe width of antenna of HBWD (6) expression sub-district 6.
The 13 step: determine the frequency of each sub-district among the set of cells W, supposing has 3 sub-districts among the set of cells W, and its frequency is respectively { F3, F2, F3}.
The 14 step: because sub-district 3 has been used frequency F3, therefore, sub-district 1 optional frequency is F1 or F2.If frequency F1 is selected in sub-district 1, then the number of cells different with the frequency of sub-district 1 is 3 among the set of cells W; If frequency F2 is selected in sub-district 1, then the number of cells different with the frequency of sub-district 1 is 2 among the set of cells W, therefore, occurs with situation frequently in order to reduce neighbor cell, and the frequency of sub-district 1 is adjusted into F1.
The 15 step: last untapped frequency F2 is needed the frequency adjusted as sub-district 2, and the frequency of sub-district 2 is adjusted into F2.
Embodiment five:
The embodiment of the invention five also provides the equipment of a kind of definite UpPTS interference source sub-district, as shown in Figure 5, described equipment comprises interference power determination module 11, is subjected to interfered cell determination module 12 and interference source sub-district determination module 13, wherein: interference power determination module 11 is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on UpPTS; Be subjected to interfered cell determination module 12 be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell; Interference source sub-district determination module 13 is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district.
Described interference power determination module 11 also is used in per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
Described interference power determination module 11 also is used for determining by following two formula the interference power of described another sub-district received signal on UpPTS:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j at the signal of DwPTS emission to cell i at U pThe interference power of the last received signal of PTS, i and j are positive integer, its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
Embodiment six:
The embodiment of the invention six also provides a kind of equipment of adjusting the Downtilt of sub-district, shown in Fig. 6 (a), described equipment comprises interference power determination module 21, is subjected to interfered cell determination module 22, interference source sub-district determination module 23 and first adjusting module 24, wherein: interference power determination module 21 is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the DwPTS emission interference power to another sub-district received signal on UpPTS; Be subjected to interfered cell determination module 22 be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell; Interference source sub-district determination module 23 is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district; First adjusting module 24 is used to adjust the Downtilt of interference source sub-district, wherein: after the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
Described interference power determination module 21 also is used in per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
Described interference power determination module 21 also is used for determining by following two formula the interference power of described another sub-district received signal on UpPTS:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
The equipment of the Downtilt of described adjustment sub-district also comprises second adjusting module 25, be used for being adjusted to set angle when the Downtilt of interference source sub-district, and after the Downtilt adjustment of interference source sub-district to the interference power that is subjected to interfered cell of correspondence during greater than second threshold value, further adjust the frequency of interference source sub-district, after the frequency of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the frequency adjustment before to the interference power that is subjected to interfered cell of correspondence.
The equipment of the Downtilt of described adjustment sub-district also comprises the 3rd adjusting module 26, be used for determining to belong to other two sub-districts of same base station with described interference source sub-district, and from described available frequency set, determine described other two frequencies that the sub-district need be adjusted, and utilize the frequency of determining to adjust other two sub-districts, wherein: the frequency of adjusting the interference source sub-district is different in twos with the frequency of adjusting described other two sub-districts.
Shown in Fig. 6 (b), described second adjusting module 25 comprises: use submodule 31, comparison sub-module 32 and definite submodule 33, wherein: use submodule 31 to be used for determining the available frequency set of interference source sub-district, and the frequency that does not adopt at current interference source sub-district in the described available frequency set respectively, determine that the interference source sub-district is when using the frequency of described not employing, to the interference power that is subjected to interfered cell of correspondence; The interference power that is subjected to interfered cell to correspondence before comparison sub-module 32 is used for respectively the interference source sub-district carried out the frequency adjustment to the interference power that is subjected to interfered cell of correspondence and interference source sub-district when using the described frequency that does not adopt compares; Determine that submodule 33 is used for determining a frequency that does not adopt according to comparative result, and the described frequency of utilize determining that does not adopt adjusts the frequency of described interference source sub-district, wherein: the interference source sub-district before after the frequency adjustment interference power that is subjected to interfered cell of correspondence being carried out the frequency adjustment less than the interference source sub-district to the interference power that is subjected to interfered cell of correspondence.
Shown in Fig. 6 (c), described the 3rd adjusting module 26 comprises: microzonation divides submodule 41, adjacent number of cells to determine submodule 42, the first operation submodule 43 and the second operation submodule 44, wherein: microzonation divides submodule 41 to be used for determining first sub-district and second sub-district of described other two sub-districts, wherein: the first adjacent cells of cells quantity is more than the second adjacent cells of cells quantity, and the main lobe angle mean value of first sub-district and neighbor cell is greater than the main lobe angle mean value of second sub-district and neighbor cell; Adjacent number of cells determines that submodule 42 is used at available frequency set each frequency except that the frequency that the interference source sub-district is adjusted, determine in first adjacent cells of cells quantity of the adjacent sub-district that a frequency in the frequency of use and the available frequency set except that the frequency of interference source sub-district adjustment is different respectively; The first operation submodule 43 is used for selecting the frequency that frequency need be adjusted as first sub-district from available frequency set other frequencies except that the frequency of interference source sub-district adjustment, wherein, in first adjacent cells of cells, the quantity of the adjacent sub-district that the frequency of use is different with selecting frequency is maximum; The second operation submodule 44 be used for from the set of available frequency remove the frequency that need adjust as the interference source sub-district and the frequency that need adjust as first sub-district other frequencies frequency of selection, the frequency that need adjust as second sub-district.
The embodiment of the invention six is the big volume descriptions to the equipment of the Downtilt of adjusting the sub-district, and the equipment of the Downtilt of the adjustment sub-district of the embodiment of the invention can also comprise the logic module of carrying out embodiment two～embodiment four directions case.
By the method and apparatus that the embodiment of the invention provides, by setting up the model that minizone DwPTS and UpPTS transmission is disturbed, accurately the location is to other area interference serious disturbance cell-of-origins; And then adopt the scheme that the frequency of the Downtilt of interference source sub-district and interference source sub-district is adjusted, substitute UpPTS Shifting scheme and reduce uplink synchronous and disturb; Simultaneously, the embodiment of the invention, has fundamentally reduced the uplink synchronous of TD-SCDMA network and has disturbed location and optimization that UpPTS disturbs the minizone DwPTS of TD-SCDMA network.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (21)

1. the method for definite uplink pilot time slot UpPTS interference source sub-district is characterized in that described method comprises:
In per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on UpPTS;
With the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence, greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district.
2. the method for claim 1 is characterized in that,
In per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
3. method as claimed in claim 2 is characterized in that, determines the interference power of described another sub-district received signal on UpPTS by following two formula:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
4. a method of adjusting the Downtilt of sub-district is characterized in that, described method comprises:
In per two sub-districts in setting regions, determine that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on uplink pilot time slot UpPTS;
With the interference power sum that is subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Determine that respectively each is subjected to the interference source sub-district of interfered cell correspondence, greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district;
Adjust the Downtilt of interference source sub-district, wherein: after the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
5. method as claimed in claim 4 is characterized in that,
In per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
6. method as claimed in claim 5 is characterized in that, determines the interference power of described another sub-district received signal on UpPTS by following two formula:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
7. as the arbitrary described method of claim 4～6, it is characterized in that adjust after the Downtilt of interference source sub-district, described method also comprises:
Downtilt when the interference source sub-district is adjusted to set angle, and after the Downtilt adjustment of interference source sub-district to the interference power that is subjected to interfered cell of correspondence during greater than second threshold value, further adjust the frequency of interference source sub-district, after the frequency of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the frequency adjustment before to the interference power that is subjected to interfered cell of correspondence.
8. method as claimed in claim 7 is characterized in that, adjusts the frequency of interference source sub-district, comprising:
Determine the available frequency set of interference source sub-district, and the frequency that does not adopt at current interference source sub-district in the described available frequency set respectively, determine that the interference source sub-district is when using the frequency of described not employing, to the interference power that is subjected to interfered cell of correspondence;
The interference power that is subjected to interfered cell to correspondence before respectively the frequency adjustment being carried out to the interference power that is subjected to interfered cell of correspondence and interference source sub-district in the interference source sub-district when using the described frequency that does not adopt compares;
Determine a frequency that does not adopt according to comparative result, and the described frequency of utilize determining that does not adopt adjusts the frequency of described interference source sub-district, wherein: the interference source sub-district before after the frequency adjustment interference power that is subjected to interfered cell of correspondence being carried out the frequency adjustment less than the interference source sub-district to the interference power that is subjected to interfered cell of correspondence.
9. method as claimed in claim 8 is characterized in that,
A described frequency that does not adopt of determining is: the interference source sub-district is to the frequency of the interference power minimum that is subjected to interfered cell of correspondence.
10. method as claimed in claim 8 is characterized in that, adjusts after the frequency of interference source sub-district, and described method also comprises:
Determine to belong to other two sub-districts of same base station with described interference source sub-district, and from described available frequency set, determine described other two frequencies that the sub-district need be adjusted, and utilize the frequency of determining to adjust other two sub-districts, wherein: the frequency of adjusting the interference source sub-district is different in twos with the frequency of adjusting described other two sub-districts.
11. method as claimed in claim 10 is characterized in that, determines described other two frequencies that the sub-district need be adjusted, and comprising:
Determine first sub-district and second sub-district in described other two sub-districts, wherein: the first adjacent cells of cells quantity is more than the second adjacent cells of cells quantity, and the main lobe angle mean value of first sub-district and neighbor cell is greater than the main lobe angle mean value of second sub-district and neighbor cell;
At each frequency except that the frequency that the interference source sub-district is adjusted in the available frequency set, determine in first adjacent cells of cells quantity of the adjacent sub-district that a frequency in the frequency of use and the available frequency set except that the frequency of interference source sub-district adjustment is different respectively;
Select the frequency that frequency need be adjusted as first sub-district in other frequencies from available frequency set except that the frequency of interference source sub-district adjustment, wherein, in first adjacent cells of cells, the quantity of the adjacent sub-district that the frequency of use is different with selecting frequency is maximum;
Frequency of selection in other frequencies the frequency that from the set of available frequency, removes the frequency that need adjust as the interference source sub-district and need adjust as first sub-district, the frequency that need adjust as second sub-district.
12. the equipment of definite uplink pilot time slot UpPTS interference source sub-district is characterized in that described equipment comprises:
The interference power determination module is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on UpPTS;
Be subjected to the interfered cell determination module, be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Interference source sub-district determination module is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district.
13. equipment as claimed in claim 12 is characterized in that,
Described interference power determination module, also be used in per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
14. equipment as claimed in claim 13 is characterized in that,
Described interference power determination module also is used for determining by following two formula the interference power of described another sub-district received signal on UpPTS:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
15. an equipment of adjusting the Downtilt of sub-district is characterized in that, described equipment comprises:
The interference power determination module is used for per two sub-districts in setting regions, determines that one of them sub-district is in the signal of the descending pilot frequency time slot DwPTS emission interference power to another sub-district received signal on uplink pilot time slot UpPTS;
Be subjected to the interfered cell determination module, be used for the interference power sum that will be subjected to greater than the sub-district of first threshold value as being subjected to interfered cell;
Interference source sub-district determination module is used for respectively determining that each is subjected to the interference source sub-district of interfered cell correspondence, and greater than second threshold value, described first threshold value is greater than second threshold value to the interference power that is subjected to interfered cell of correspondence in described interference source sub-district;
First adjusting module, be used to adjust the Downtilt of interference source sub-district, wherein: after the Downtilt of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the Downtilt adjustment before to the interference power that is subjected to interfered cell of correspondence.
16. equipment as claimed in claim 15 is characterized in that,
Described interference power determination module, also be used in per two sub-districts, at the duration that transmitting power and this signal of the signal of DwPTS emission arrives the UpPTS that takies behind another sub-district, determine the interference power of another sub-district received signal on UpPTS according to a sub-district.
17. equipment as claimed in claim 16 is characterized in that,
Described interference power determination module also is used for determining by following two formula the interference power of described another sub-district received signal on UpPTS:
I i,j=Interference i,j×α i,j
Interference i,j=P DwPTS+Sectory i_Gain+Sectory j_Gain-Pathloss ji
Wherein: I I, jExpression sub-district j is in the signal of the DwPTS emission interference power to cell i received signal on UpPTS, and i and j are positive integer, and its value is the number of cells in 1～setting regions; α I, jThe signal of expression sub-district j emission is at the duration that arrives the UpPTS that takies after the cell i; Interference I, jPower when the signal of expression sub-district j emission arrives cell i; P DwPTSThe transmitting power that expression sub-district j transmits; Sectory i_ Gain and Sectory j_ Gain represents the antenna transmission gain of the antenna receiving gain and the sub-district j of cell i respectively; Pathloss JiThe path loss of signal from sub-district j to cell i of expression sub-district j emission.
18., it is characterized in that the equipment of the Downtilt of described adjustment sub-district also comprises as the arbitrary described equipment of claim 15～17:
Second adjusting module, be used for being adjusted to set angle when the Downtilt of interference source sub-district, and after the Downtilt adjustment of interference source sub-district to the interference power that is subjected to interfered cell of correspondence during greater than second threshold value, further adjust the frequency of interference source sub-district, after the frequency of described interference source sub-district is adjusted, to the interference power that is subjected to interfered cell of correspondence less than the frequency adjustment before to the interference power that is subjected to interfered cell of correspondence.
19. equipment as claimed in claim 18 is characterized in that, described second adjusting module comprises:
Use submodule, be used for determining the available frequency set of interference source sub-district, and the frequency that does not adopt at current interference source sub-district in the described available frequency set respectively, determine that the interference source sub-district is when using the frequency of described not employing, to the interference power that is subjected to interfered cell of correspondence;
Comparison sub-module, the interference power that is subjected to interfered cell to correspondence before being used for respectively the interference source sub-district carried out the frequency adjustment to the interference power that is subjected to interfered cell of correspondence and interference source sub-district when using the described frequency that does not adopt compares;
Determine submodule, be used for determining a frequency that does not adopt according to comparative result, and the described frequency of utilize determining that does not adopt adjusts the frequency of described interference source sub-district, wherein: the interference source sub-district before after the frequency adjustment interference power that is subjected to interfered cell of correspondence being carried out the frequency adjustment less than the interference source sub-district to the interference power that is subjected to interfered cell of correspondence.
20. equipment as claimed in claim 19 is characterized in that, the equipment of the Downtilt of described adjustment sub-district also comprises:
The 3rd adjusting module, be used for determining to belong to other two sub-districts of same base station with described interference source sub-district, and from described available frequency set, determine described other two frequencies that the sub-district need be adjusted, and utilize the frequency of determining to adjust other two sub-districts, wherein: the frequency of adjusting the interference source sub-district is different in twos with the frequency of adjusting described other two sub-districts.
21. equipment as claimed in claim 20 is characterized in that, described the 3rd adjusting module comprises:
Microzonation divides submodule, be used for determining first sub-district and second sub-district of described other two sub-districts, wherein: the first adjacent cells of cells quantity is more than the second adjacent cells of cells quantity, and the main lobe angle mean value of first sub-district and neighbor cell is greater than the main lobe angle mean value of second sub-district and neighbor cell;
Adjacent number of cells is determined submodule, be used at available frequency set each frequency except that the frequency that the interference source sub-district is adjusted, determine in first adjacent cells of cells quantity of the adjacent sub-district that a frequency in the frequency of use and the available frequency set except that the frequency of interference source sub-district adjustment is different respectively;
The first operation submodule, be used for from available frequency set other frequencies except that the frequency of interference source sub-district adjustment, selecting the frequency that frequency need be adjusted as first sub-district, wherein, in first adjacent cells of cells, the quantity of the adjacent sub-district that the frequency of use is different with selecting frequency is maximum;
The second operation submodule, be used for from the set of available frequency remove the frequency that need adjust as the interference source sub-district and the frequency that need adjust as first sub-district other frequencies frequency of selection, the frequency that need adjust as second sub-district.
CN2009102386636A 2009-11-30 2009-11-30 Method and equipment for indentifying interference source cell and adjusting antenna downward inclination angle of cell Active CN102082615B (en)

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