CN101662776A - Method and device for allocating cell frequency - Google Patents
Method and device for allocating cell frequency Download PDFInfo
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Abstract
The invention discloses a method and a device for allocating cell frequency, which are used for solving the problem that the prior frequency planning optimization technology cannot well avoid interference with a user. The method for allocating the cell frequency comprises the following steps: determining reference reset frequency of each cell according to the current frequency of each cell in thesame frequency band in a reference area, and the times for mutually switching users in each cell with the users in an adjacent cell in a reference time period, wherein the reference reset frequency ineach cell is an allocation frequency which can improve the current total same/adjacent frequency interference of each cell; and determining an improvement amount on the current same/adjacent frequency interference of each cell respectively when the frequency of each cell is the reference reset frequency while the frequency of the adjacent cell is the current frequency, and resetting the frequencyof each cell in turn according to the volume order of the improvement amount on the current same/adjacent frequency interference of each cell.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly the configuring technical of cell frequency.
Background technology
In GSM (Global System for Mobile communication, global system for mobile communications) network, the quality of frequency planning directly has influence on the performance performance of network.The technology that is currently applied to GSM network plan optimization mainly contains three kinds: based on the channeling technology of legacy cellular theory; Automatic Frequency Planning technology based on coverage prediction; Based on the automatic frequency optimization technology of measuring statistics.
Wherein, established the theoretical foundation of frequency planning based on the channeling technology of legacy cellular theory.In the GSM network, the channeling technology makes same frequency cover different zone (zone of a base station covering or the zone that a part covered of this base station), use the zone of same frequency to need each other at intervals, co-channel interference is suppressed in the index of permission to satisfy.
Automatic Frequency Planning technology based on coverage prediction is used in the prior art in large quantities, but because the error that electronic chart and propagation model exist and can not truly reflect the distribution situation of user's traffic, use the resulting frequency planning result of this technology and can not farthest avoid interference for the user based on the prediction that covers.
Carry out the Automatic Optimal of frequency based on the automatic frequency optimization technology actual measurement statistics Network Based of measuring statistics, it is very good to improve effect, but the measurement statistics that this technology adopts is generally terminal survey report, because obtaining of terminal survey report is very complicated, so also more complicated of the realization of this technology.And, existing each big Wireless Telecom Equipment producer all has an own cover to obtain the method for terminal survey report and the method that the employing terminal survey report carries out frequency optimization usually, therefore the automatic frequency optimization instrument that producer provided often can only be applied on the communication equipment of this producer production, and can not be applied on the communication equipment of other manufacturer production.
As seen, existing GSM network plan optimization technology can not be avoided the interference for the user preferably, perhaps realize comparatively complicated, can not be applied on the various communication equipments.
Summary of the invention
The embodiment of the invention proposes the collocation method and the device of cell frequency, can not avoid problem for user's interference preferably in order to solve existing frequency planning optimisation technique.
The embodiment of the invention provides a kind of collocation method of cell frequency, comprising:
According to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Determine respectively when the frequency of described each sub-district is current frequency for the frequency of its adjacent area of reference reset frequency, current to each sub-district with the/adjacent improvement amount of disturbing frequently, and according to described current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn.
The embodiment of the invention provides a kind of inking device of cell frequency, comprising:
Acquiring unit is used for obtaining in the reference zone number of times information of switching mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section;
First determining unit, be used for the number of times that switches mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Second determining unit is used for determining respectively when the frequency of described each sub-district is current frequency for the frequency of its adjacent area of reference reset frequency, and is current with the/adjacent improvement amount of disturbing frequently to each sub-district;
The replacement processing unit is used for according to described current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district the frequency of each sub-district of resetting in regular turn.
The embodiment of the invention also provides the collocation method of another kind of cell frequency, comprising:
According to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
The frequency of each sub-district is reset to it with reference to reset frequency.
The embodiment of the invention also provides the inking device of another kind of cell frequency, comprising:
Acquiring unit is used for obtaining in the reference zone number of times information of switching mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section;
Determining unit, be used for the number of times that switches mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
The replacement processing unit is used for the frequency of each sub-district is reset to it with reference to reset frequency.
Technical solution of the present invention adopts genetic algorithm and greedy algorithm, frequency configuration information according to the number of times that switches mutually with user in user and the adjacent area in each sub-district of frequency range in the reference zone and each sub-district, the frequency of each sub-district of resetting, same/adjacent the interference frequently of same/preceding all sub-districts of the adjacent replacement of interference ratio frequently of all sub-districts, replacement back to be improved a lot, thereby reduced interference user in the sub-district.
Description of drawings
Fig. 1 is the collocation method flow chart of cell frequency in the embodiment of the invention;
Fig. 2 determines the method flow diagram of each sub-district with reference to reset frequency in the embodiment of the invention;
Fig. 3 is a method flow diagram of determining one group of possibility reset frequency in the embodiment of the invention;
Fig. 4 is the method flow diagram of each cell frequency of replacement in the embodiment of the invention;
Fig. 5 is a method flow diagram of determining the interim group of frequencies in newly-built base station in the embodiment of the invention;
Fig. 6 is the structural representation of a kind of inking device of cell frequency in the embodiment of the invention;
Fig. 7 is the structural representation of the inking device of another kind of cell frequency in the embodiment of the invention.
Embodiment
The embodiment of the invention has proposed the collocation method and the device of cell frequency.Usually, OMCR (Operate﹠amp; Maintenance Centre for Radio, the radio operation maintenance centre) write down (the Key Performance Indicator of the KPI of each network element in the network on, Key Performance Indicator) statistics, these data have comprised the number of times information of user's user's switching in the adjacent area in each sub-district and the frequency configuration information of each sub-district.Technical solution of the present invention adopts genetic algorithm and greedy algorithm exactly, frequency configuration information according to the number of times that switches mutually with user in user and the adjacent area in each sub-district of frequency range in the reference zone and each sub-district, the frequency of each sub-district of resetting, same/adjacent the interference frequently of same/preceding all sub-districts of the adjacent replacement of interference ratio frequently of all sub-districts, replacement back to be improved a lot, thereby reduced interference user in the sub-district; And, required data and information when technical solution of the present invention utilizes prior art just can obtain to reset cell frequency, therefore compare existing frequency optimization Technology Need acquisition terminal measurement report, technical solution of the present invention is more simple and easy to do, can directly be applied on the various communication equipments.In addition, technical solution of the present invention can be carried out the frequency replacement to the whole network sub-district, also can carry out frequency to the sub-district in certain zone and reset, and can solve the frequency selection problem of newly-built base station, meets the steady requirement of safeguarding of carrier network.
Wherein, the switching in the embodiment of the invention can be that GSM switches, and also can be different from the switching that GSM switches.
Wherein, the GSM switching can be again that PBGT (Power Budget Gauge Threshold, the switching of measuring thresholding based on power budget) switches or quality switching or level switching etc.
In addition, the embodiment of the invention has defined with/adjacent same/adjacent the disturbed condition frequently that disturbs reference value to reflect the sub-district frequently, the sub-district same/adjacent frequently disturb reference value big more show the sub-district same/it is adjacent that disturbed condition is serious more frequently.Same/adjacent reference value of frequently disturbing can use formula (1) to determine:
D＝W*N1+N2????????????????????????(1)
Wherein, D represent the sub-district same/it is adjacent that frequently to disturb reference value, W be weighted value, N1 is the number of times that the user is switched mutually in user and the homogeneous-frequency adjacent-domain in the sub-district, N2 is the number of times that the user is switched mutually in user and all neighbour's frequency adjacent areas in the sub-district.Wherein, the W weighted value is generally 10.
Consult shown in Figure 1ly, switch to example with GSM, the cell frequency collocation method that the embodiment of the invention provides comprises the following steps:
S101, according to the number of times that switches with the mutual GSM of user in user and the adjacent area in above-mentioned each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of above-mentioned each sub-district, the reference reset frequency of above-mentioned each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
S102, when determining in reference zone to be current frequency for the frequency of its each adjacent area of reference reset frequency respectively with the frequency of each sub-district of frequency range, current to each sub-district with the/adjacent improvement amount of disturbing frequently, and according to above-mentioned current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn.
Step S101, S102 respectively as first process, second process of this method, are described in detail these two processes below:
One, according to the number of times that switches with the mutual GSM of user in user and the adjacent area in above-mentioned each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of above-mentioned each sub-district, the reference reset frequency of above-mentioned each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district.
Wherein, the GSM switching can be that PBGT switches or quality switching or level switching etc.Reference zone can be a LAC (Location Area Code, lane place coding) or whole network's coverage area etc.The reference time section can be the rationally long time, such as busy continuous two weeks.
This process adopts genetic algorithm, consults shown in Figure 2ly, and this process comprises the steps:
S201, in reference zone with selecting a sub-district in all sub-districts of frequency range as first sub-district, with first sub-district be zequin determine one group may reset frequency, this group may reset frequency comprises a possibility reset frequency of each sub-district.
Consult shown in Figure 3ly, S201 further comprises the steps:
S301, according to the number of times that the mutual GSM of user in user and the adjacent area in first sub-district in the current frequency of first sub-district and each adjacent area and the reference time section switches, determine maximumly to improve first sub-district current with/adjacent first sub-district of disturbing frequently may reset frequency.
Preferably, can determine first sub-district possibility reset frequency according to following frequency selection purposes principle:
Frequency selection purposes principle: 1, when having the untapped network planning BCCH in adjacent area (Broadcast ControlChannel, Broadcast Control Channel) frequency, select adjacent area untapped network planning BCCH frequency; 2, when network planning BCCH frequency all used by the adjacent area and with this sub-district in the minimum adjacent area of the mutual GSM switching times of user and this sub-district adjacent frequently the time, select with this sub-district in the frequency of the inferior few adjacent area of the mutual GSM switching times of user, the rest may be inferred; 3, when network planning BCCH frequency all used by the adjacent area and with this sub-district in the minimum adjacent area of the mutual GSM switching times of user during with frequency, select the frequency of this sub-district with this sub-district; 4, when network planning BCCH frequency all used by the adjacent area and with this sub-district in the minimum adjacent area of the mutual GSM switching times of user not with this sub-district with adjacent frequently the time, select with this sub-district in the frequency of the minimum adjacent area of the mutual GSM switching times of user.Wherein, the user has carried out the GSM switching in the sub-district beyond user and the reference zone in this sub-district, the same adjacent of sub-district (can guarantee that like this interference of this reference zone and the whole network can both get a promotion) frequently beyond then should avoiding selecting reference zone, and the BCCH group of frequencies of head and tail is handled frequently as the neighbour.
For the convenience of implementing, technical solution of the present invention is provided with switching matrix in the reference time section for each sub-district, with the frequency that shows this sub-district and its adjacent area and the mutual GSM of user switches in user and its adjacent area in this sub-district in the reference time section number of times.The switching matrix that is sub-district A1 in the reference time section as shown in table 1 below:
Table 1
| The sub-district | ??A1 | ??A2 | ??A3 | ??A4 | ??A5 | ??A6 | ??A7 |
| Frequency (BCCH frequency) | ??2 | ??1 | ??2 | ??3 | ??6 | ??5 | ??4 |
| Mutual GSM switching times | ??90 | ??24 | ??35 | ??15 | ??28 | ??20 |
A2, A3, A4, A5, A6, A7 represent the adjacent area of sub-district A1 respectively in the table 1.This switching matrix shows that the current frequency of sub-district A1, A2, A3, A4, A5, A6, A7 is respectively BCCH frequency 2,1,2,3,6,5,4; In the reference time section, the number of times that the mutual GSM of user switches among user and sub-district A2, A3, A4, A5, A6, the A7 among the A1 of sub-district is respectively 90,24,35,15,28,20.
Now the number of times that for example the mutual GSM of user in two sub-districts in the reference time section is switched describes, such as: in the reference time section, user user in the A2 of sub-district initiates 40 GSM switchings among the A1 of sub-district, and user user in the A1 of sub-district initiates 50 GSM switchings among the A2 of sub-district, and the number of times that the mutual GSM of user switches among user and the sub-district A2 among the A1 of sub-district is 50+40=90 time so.
Preferably, technical solution of the present invention can determine that according to the frequency selection purposes principle first sub-district may reset frequency in conjunction with the switching matrix of first sub-district in the reference time section.
Arbitrary adjacent area of S302, selection first sub-district is second sub-district, when the frequency of first sub-district is first sub-district possibility reset frequency, according to the number of times that first sub-district may reset frequency, the mutual GSM of user switches in user and the adjacent area in second sub-district in the current frequency of second sub-district and other each adjacent area and the reference time section, it is current with/adjacent second sub-district possibility reset frequency that disturbs frequently to determine maximumly to improve second sub-district.
Technical solution of the present invention can determine that second sub-district may reset frequency according to the said frequencies selection principle.Preferably, can (this moment, second sub-district be in the switching matrix of reference time section at the switching matrix of reference time section in conjunction with second sub-district, the frequency of first sub-district has become first sub-district possibility reset frequency), determine that according to the frequency selection purposes principle second sub-district may reset frequency.
Arbitrary adjacent area of S303, selection second sub-district is the 3rd sub-district, when the frequency of first sub-district, second sub-district is respectively separately possible reset frequency, according to the number of times that first sub-district may reset frequency, second sub-district may reset frequency, the mutual GSM of user switches in user and the adjacent area in the 3rd sub-district in the current frequency of the 3rd sub-district and other each adjacent area and the reference time section, it is current with/adjacent the 3rd sub-district possibility reset frequency that disturbs frequently to determine maximumly to improve the 3rd sub-district;
Afterwards, arbitrary adjacent area of selecting the 3rd sub-district is the 4th sub-district, when the frequency of first sub-district, second sub-district, the 3rd sub-district is respectively separately possible reset frequency, according to the number of times that first sub-district may reset frequency, second sub-district may reset frequency, the 3rd sub-district may reset frequency, the mutual GSM of user switches in user and the adjacent area in the 4th sub-district in the current frequency of the 4th sub-district and other each adjacent area and the reference time section, it is current with/adjacent the 4th sub-district possibility reset frequency that disturbs frequently to determine maximumly to improve the 4th sub-district;
And the like, up to for determined with each sub-district of frequency range in the reference zone may reset frequency, and possible the reset frequency of all sub-districts is called one group of possible reset frequency.
So far, determined with first sub-district to be one group of possibility reset frequency of zequin.
S202, respectively with in the reference zone other at least one be zequin with frequency range sub-district (as being zequin with second sub-district, being zequin, being zequin etc. with the 4th sub-district with the 3rd sub-district), determine that other many groups may reset frequencies.
Definite method at each starting point is identical with aforementioned S301～S303, no longer describes in detail here.
S203, respectively determine every group may reset frequency current with/adjacent total improvement amount of disturbing frequently to all sub-districts, and determine that a group of total improvement amount maximum may reset frequency be first group of refinement frequency.
S204, when the frequency of each sub-district be that first group of refinement is during with the respective frequencies in the frequency, according to determining second group of refinement frequency with the described identical method of S201～S203; When the frequency of each sub-district is that second group of refinement is during with the respective frequencies in the frequency, according to determining the 3rd group of refinement frequency with the described identical method of S201～S203; And the like, determine last group refinement frequency by repeatedly iterating refinement computing (such as 10 times), and determine that the reference reset frequency of each sub-district is the respective frequencies in last group refinement usefulness frequency.
Certainly, also can determine with reference to reset frequency, and be not limited to the method that above-mentioned steps S201～S204 describes with other method.Such as after S203, the reference reset frequency that can directly determine each sub-district is first group of refinement with the respective frequencies in the frequency, and does not carry out that S204 is described to iterate the refinement computing.
Determine after the reference reset frequency of each sub-district, can be directly the frequency of each sub-district be reset to it with reference to reset frequency, also can continue to carry out following second process.If directly the frequency of each sub-district is reset to it with reference to reset frequency, because the reference reset frequency of each sub-district is to improve the current same/adjacent configuration frequency of disturbing frequently always in each sub-district, therefore the frequency with each sub-district resets to it with reference to reset frequency, not only can reduce interference to user in the sub-district, and simple and easy to do, can directly be applied on the various communication equipments.
When two, determining in reference zone to be current frequency for the frequency of its each adjacent area of reference reset frequency respectively with the frequency of each sub-district of frequency range, current to each sub-district with the/adjacent improvement amount of disturbing frequently, and according to above-mentioned current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn.
This process adopts greedy algorithm, consults shown in Figure 4ly, and this process comprises the steps:
S401, when determining in reference zone to be current frequency for the frequency of its each adjacent area of reference reset frequency with the frequency of each sub-district of frequency range, current to each sub-district with the/adjacent improvement amount of disturbing frequently.
Specifically can determine according to formula (1).
Still be depicted as the example explanation with table 1, sub-district A1 current with/adjacent frequently disturb reference value to be: 10*40+ (50+30)=480, the reference reset frequency of supposing sub-district A1 is a BCCH frequency 6, according to formula (1) as can be known, when the frequency of sub-district A1 is that the frequency of BCCH frequency 6, each adjacent area is when being current frequency, sub-district A1 same/adjacent frequently disturb reference value to be: 10*15+20=170, compare sub-district A1 current with/it is adjacent that frequently to disturb the improvement amount of reference value be 480-170=310.
Promptly determining each sub-district currently during, at first,, utilizing formula (1) to determine same/adjacent reference value D1 that frequently disturbs that this sub-district is current according to the current frequency of this sub-district and its adjacent area with the/adjacent improvement amount of disturbing frequently; Then, the frequency of this sub-district is regarded as with reference to reset frequency, and its adjacent area frequency still is current frequency, utilizes formula (1) to determine the same/adjacent reference value D2 that frequently disturbs of this sub-district under this kind state; At last, determine currently to this sub-district be with/adjacent improvement the amount of disturbing frequently: D1-D2.
S402, sorted according to correspondence improvement amount order from big to small in the sub-district, suppose after the ordering the sub-district in proper order for sub-district B1, sub-district B2, sub-district B3,,,,,, sub-district Bi, i is the total number in sub-district.The improvement amount maximum of sub-district B1 wherein, the improvement amount of sub-district B2 is time big, and the like.
S403, the frequency of sub-district B1 is reset to the reference reset frequency of sub-district B1, and the switching matrix of the adjacent area of sub-district B1 is upgraded, the frequency that is about to sub-district B1 in the switching matrix of adjacent area is updated to the reference reset frequency of sub-district B1.
S404, after the frequency of replacement sub-district B1, according to the frequency of sub-district B2 and its adjacent area (this moment sub-district B1 frequency frequency of postpone of attaching most importance to, other cell frequency is constant) and the reference time section in the number of times of the mutual GSM switching of user in user and the adjacent area among the B2 of sub-district, determine maximumly to improve and reset back sub-district B2 with the/adjacent final reference reset frequency that disturbs frequently, and whether the final reference reset frequency of judging sub-district B2 can improve same/adjacent interference frequently of the preceding sub-district B2 that resets, if then the frequency with sub-district B2 resets to the final reference reset frequency; Otherwise the frequency of sub-district B2 is reset to its current frequency (can certainly keep the frequency of sub-district B2 constant).
S405, at replacement sub-district B1, after the frequency of sub-district B2, according to the frequency of sub-district B3 and its adjacent area (this moment sub-district B1, the attach most importance to frequency of postpone of the frequency of sub-district B2, other cell frequency is constant), and the number of times of the mutual GSM switching of user in user and the adjacent area among the B3 of sub-district in the reference time section, determine maximumly to improve and reset back sub-district B3 with the/adjacent final reference reset frequency that disturbs frequently, and whether the final reference reset frequency of judging sub-district B3 can improve same/adjacent interference frequently of the preceding sub-district B3 that resets, if then the frequency with sub-district B3 resets to the final reference reset frequency; Otherwise the frequency of sub-district B3 is reset to its current frequency (can certainly keep the frequency of sub-district B3 constant).And the like, up to the frequency of sub-district Bi of having reset.
Preferably, step S404, S405 can determine the final reference reset frequency of sub-district according to the frequency selection purposes principle.
In addition, can also utilize technical solution of the present invention is newly-built base station selected frequency.
In the networking process, there is a large amount of newly-built base stations to put into effect successively, this moment, operator did not wish to carry out big frequency adjustment, big fluctuation occurred to avoid network.And utilize technical solution of the present invention can reach this purpose.At first, by the analysis to periphery adjacent area, newly-built base station, can determine an interim group of frequencies of newly-built base station, interim group of frequencies comprises the frequency of each sub-district in the newly-built base station coverage area.Then, newly-built base station can put into effect according to interim group of frequencies, and the adjacent area is optimized, and obtains the number of times information that mutual GSM switches between each community user in the newly-built base station coverage area.At last, be sub-district reset frequency in the newly-built base station coverage area according to the collocation method of aforementioned cell frequency.
Wherein, determine that the method for the interim group of frequencies in newly-built base station is as described below:
Consulting shown in Figure 5ly, is example with the newly-built base station of 900M, and there are three sub-districts newly-built base station.With newly-built base station is that center, direct north are starting point, every the standardized radiation areas of 120 degree, finds 2 from nearest 2 base stations (being required to be 900M) of newly-built base station distance in each radiation areas, can find 6 altogether.All sub-districts of base station 5, base station 6 all are the adjacent area of sub-district, newly-built base station (this sub-district needs neighbor base station 5 and base station 6) in the radiation areas 1, and the like.There are line (as the dotted line between newly-built base station among Fig. 5 and the base station 4) always separately in newly-built base station and these six base stations of periphery, and two sub-districts of three antenna in cell of each peripheral base station and direct-connected wire clamp angle minimum all are defined as the adjacent area of three sub-districts, newly-built base station.
At each sub-district of newly-built base station, as there is adjacent area untapped network planning BCCH frequency, then chooses the frequency of untapped network planning BCCH frequency as this sub-district; If network planning BCCH frequency is all used by the adjacent area, then sorted by telephone traffic in its adjacent area, choose the frequency of the adjacent area frequency of telephone traffic minimum as this sub-district.
With a specific embodiment technical solution of the present invention is described below:
Suppose that network planning BCCH frequency point ranges is 1 to 6, existing 3 sub-district A1, A4, A7, its switching matrix in the reference time section is as follows:
Table 2
| The sub-district | ??A1 | ??A2 | ??A3 | ??A4 | ??A5 | ??A6 | ??A7 |
| Frequency (BCCH frequency) | ??2 | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 |
| Mutual GSM switching times | ??50 | ??40 | ??30 | ??25 | ??20 | ??15 |
Table 2 is the switching matrix of sub-district A1 in the reference time section.According to formula (1) as can be known sub-district A1 current with/it is adjacent that frequently to disturb reference value be 10*40+ (50+30)=480, can determine that according to the frequency selection purposes principle replacement reference frequency of sub-district A1 is a BCCH frequency 6, to sub-district A1 current with/it is adjacent that frequently to disturb the improvement amount of reference value be 310.
Table 3
| The sub-district | ??A4 | ??A1 | ??A3 | ??B1 | ??B2 | ??B3 | ??B4 |
| Frequency (BCCH frequency) | ??3 | ??2 | ??2 | ??3 | ??1 | ??5 | ??6 |
| Mutual GSM switching times | ??30 | ??50 | ??25 | ??40 | ??30 | ??25 |
Table 3 is the switching matrix of sub-district A4 in the reference time section.According to formula (1) as can be known sub-district A4 current with/it is adjacent that frequently to disturb reference value be 10*25+ (50+30)=330, can determine that according to the frequency selection purposes principle replacement reference frequency of sub-district A4 is a BCCH frequency 4, to sub-district A4 current with/it is adjacent that frequently to disturb the improvement amount of reference value be 275.
Table 4
| The sub-district | ??A7 | ??A1 | ??C1 | ??C2 | ??B2 | ??C3 | ??C4 |
| Frequency (BCCH frequency) | ??6 | ??2 | ??2 | ??3 | ??1 | ??5 | ??4 |
| Mutual GSM switching times | ??15 | ??50 | ??45 | ??40 | ??30 | ??20 |
Table 4 is the switching matrix of sub-district A7 in the reference time section.According to formula (1) as can be known sub-district A7 current with/it is adjacent that frequently to disturb reference value be 10*30=300, the replacement reference frequency that can determine sub-district A7 according to the frequency selection purposes principle is its current frequency (BCCH frequency 6), to sub-district A7 current with/it is adjacent that frequently to disturb the improvement amount of reference value be 0.
Because improvement amount 310＞275＞0, therefore, the sub-district A1 frequency of should resetting earlier, the sub-district A4 frequency of resetting then, the sub-district replacement A7 frequency of resetting at last, this process is as follows:
At first, the frequency of replacement sub-district A1 is with reference to reset frequency-BCCH frequency 6, the switching matrix of sub-district A1 sees Table 5 after resetting, as seen, it is 10*15+20=170 that same/adjacent frequency of replacement back sub-district A1 disturbs reference value, same/adjacent frequency less than the preceding sub-district A1 that resets disturbs reference value 480, and the improvement amount is 310, shows to reset rationally:
Table 5
| The sub-district | ??A1 | ??A2 | ??A3 | ??A4 | ??A5 | ??A6 | ??A7 |
| Frequency (BCCH frequency) | ??6 | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 |
| Mutual GSM switching times | ??50 | ??40 | ??30 | ??25 | ??20 | ??15 |
After the frequency of replacement sub-district A1, the switching matrix of sub-district A4 changes, and sees Table 6 (this moment, the frequency of sub-district A4 became BCCH frequency 6):
Table 6
| The sub-district | ??A4 | ??A1 | ??A3 | ??B1 | ??B2 | ??B3 | ??B4 |
| Frequency (BCCH frequency) | ??3 | ??6 | ??2 | ??3 | ??1 | ??5 | ??6 |
| Mutual GSM switching times | ??30 | ??50 | ??25 | ??40 | ??30 | ??25 |
Next, under the state behind the A1 of replacement sub-district, can determine that according to the frequency selection purposes principle final reference reset frequency of sub-district A4 is a BCCH frequency 4, because BCCH frequency 4 can improve same/adjacent interference frequently of the preceding sub-district A4 that resets, the frequency of the sub-district A4 that therefore can reset is a BCCH frequency 4.
After the frequency of replacement sub-district A1, A4, the switching matrix of sub-district A4 sees Table 7:
Table 7
| The sub-district | ??A4 | ??A1 | ??A3 | ??B1 | ??B2 | ??B3 | ??B4 |
| Frequency (BCCH frequency) | ??4 | ??6 | ??2 | ??3 | ??1 | ??5 | ??6 |
| Mutual GSM switching times | ??30 | ??50 | ??25 | ??40 | ??30 | ??25 |
After the frequency of replacement sub-district A1, A4, the switching matrix of sub-district A7 sees Table 8:
Table 8
| The sub-district | ??A7 | ??A1 | ??C1 | ??C2 | ??B2 | ??C3 | ??C4 |
| Frequency (BCCH frequency) | ??6 | ??6 | ??2 | ??3 | ??1 | ??5 | ??4 |
| Mutual GSM switching times | ??15 | ??50 | ??45 | ??40 | ??30 | ??20 |
As seen, sub-district A7 at present with/it is adjacent that frequently to disturb reference value be 10*15+30=180, (and if the frequency of sub-district A1 still is a BCCH frequency 2, sub-district A7 at present with/it is adjacent that frequently to disturb reference value be 3), therefore no matter sub-district A7 frequency is reset is what, can not improve same/adjacent reference value of frequently disturbing of the preceding sub-district A7 that resets, therefore keep the frequency of sub-district A7 constant.
After sub-district A1, A4, the A7 frequency reset so far, these three sub-districts altogether with/adjacent improved (480-170)+(330-55)=585 before frequently disturbing reference value to compare replacement, the improvement amount is bigger.
As seen, it is each sub-district reset frequency that this specific embodiment utilizes technical solution of the present invention, has not only reduced the interference to user in the sub-district, and simple and easy to do, can directly be applied on the various communication equipments.
Consult shown in Figure 6ly, the embodiment of the invention also proposes a kind of inking device of cell frequency, comprising:
Acquiring unit 601 is used for obtaining in the reference zone number of times information with the mutual GSM switching of user in above-mentioned each sub-district user in the current frequency information of each sub-district of frequency range and the reference time section and the adjacent area;
First determining unit 602, be used for the number of times that switches with the mutual GSM of user in above-mentioned each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of above-mentioned each sub-district, the reference reset frequency of above-mentioned each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Second determining unit 603 is used for determining respectively when the frequency of above-mentioned each sub-district is current frequency for the frequency of its adjacent area of reference reset frequency, and is current with the/adjacent improvement amount of disturbing frequently to each sub-district;
Consult shown in Figure 7ly, the embodiment of the invention also provides the inking device of another kind of cell frequency, comprising:
Acquiring unit 701 is used for obtaining in the reference zone number of times information with the mutual GSM switching of user in above-mentioned each sub-district user in the current frequency information of each sub-district of frequency range and the reference time section and the adjacent area;
Determining unit 702, be used for the number of times that switches with the mutual GSM of user in above-mentioned each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of above-mentioned each sub-district, the reference reset frequency of above-mentioned each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Technical solution of the present invention adopts genetic algorithm and greedy algorithm, according to the number of times that switches with the mutual GSM of user in user and the adjacent area in each sub-district of frequency range in the reference zone and the frequency configuration information of each sub-district, the frequency of each sub-district of resetting, same/adjacent the interference frequently of same/preceding all sub-districts of the adjacent replacement of interference ratio frequently of all sub-districts, replacement back to be improved a lot, thereby reduced interference user in the sub-district; And, required data and information when technical solution of the present invention utilizes prior art just can obtain to reset cell frequency, therefore compare existing frequency optimization Technology Need acquisition terminal measurement report, technical solution of the present invention is more simple and easy to do, can directly be applied on the various communication equipments.In addition, technical solution of the present invention can be carried out the frequency replacement to the whole network sub-district, also can carry out frequency to the sub-district in certain zone and reset, and can solve the frequency selection problem of newly-built base station, meets the steady requirement of safeguarding of carrier 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 (13)
1, a kind of collocation method of cell frequency is characterized in that, comprising:
According to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Determine respectively when the frequency of described each sub-district is current frequency for the frequency of its adjacent area of reference reset frequency, current to each sub-district with the/adjacent improvement amount of disturbing frequently, and according to described current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn.
2, the method for claim 1 is characterized in that, with the same/adjacent same/adjacent disturbed condition frequently that disturbs reference value to represent the sub-district frequently of sub-district, wherein, determines the same/adjacent reference value of frequently disturbing of sub-district according to following formula:
D＝W*N1+N2
Wherein, D represents the same/adjacent reference value of frequently disturbing of sub-district, and the D value is big more to show that the same/adjacent interference frequently of sub-district is serious more, and W is a weighted value, N1 is the number of times that the user is switched mutually in user and the homogeneous-frequency adjacent-domain in the sub-district, and N2 is the number of times that the user is switched mutually in user and all the adjacent adjacent areas frequently in the sub-district.
3, method as claimed in claim 1 or 2 is characterized in that, described switching comprises that global system for mobile communications GSM switches.
4, method as claimed in claim 1 or 2, it is characterized in that, according to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine in the reference zone further to comprise with the reference reset frequency of each sub-district of frequency range:
With at least one sub-district is the possible reset frequency that zequin is determined each sub-district, wherein, when determining the possible reset frequency of each sub-district, according to the current frequency of this sub-district and the calculating frequency of adjacent area, and the number of times that the user is switched mutually in user and the adjacent area in this sub-district in the reference time section, determine the possible reset frequency of this sub-district, described adjacent area comprises the adjacent area that at least one has determined the possibility reset frequency, and the calculating frequency of having determined the adjacent area of possibility reset frequency is the possible reset frequency of this adjacent area, determines that the calculating frequency of the adjacent area of possibility reset frequency is the current frequency of this adjacent area;
According to each sub-district might reset frequency determine the reference reset frequency of each sub-district.
5, method as claimed in claim 1 or 2 is characterized in that, described according to current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn further comprises:
According to current with the/adjacent order from big to small of disturbing the improvement amount frequently to each sub-district, the frequency of each sub-district of resetting in regular turn.
6, a kind of inking device of cell frequency is characterized in that, comprising:
Acquiring unit is used for obtaining in the reference zone number of times information of switching mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section;
First determining unit, be used for the number of times that switches mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
Second determining unit is used for determining respectively when the frequency of described each sub-district is current frequency for the frequency of its adjacent area of reference reset frequency, and is current with the/adjacent improvement amount of disturbing frequently to each sub-district;
The replacement processing unit is used for according to described current with the/adjacent size order that disturbs the improvement amount frequently to each sub-district the frequency of each sub-district of resetting in regular turn.
7, device as claimed in claim 6 is characterized in that, described switching comprises that GSM switches.
8, a kind of collocation method of cell frequency is characterized in that, comprising:
According to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
The frequency of each sub-district is reset to it with reference to reset frequency.
9, method as claimed in claim 8 is characterized in that, with the same/adjacent same/adjacent disturbed condition frequently that disturbs reference value to represent the sub-district frequently of sub-district, wherein, determines the same/adjacent reference value of frequently disturbing of sub-district according to following formula:
D＝W*N1+N2
Wherein, D represents the same/adjacent reference value of frequently disturbing of sub-district, and the D value is big more to show that the same/adjacent interference frequently of sub-district is serious more, and W is a weighted value, N1 is the number of times that the user is switched mutually in user and the homogeneous-frequency adjacent-domain in the sub-district, and N2 is the number of times that the user is switched mutually in user and all the adjacent adjacent areas frequently in the sub-district.
10, method as claimed in claim 8 or 9 is characterized in that, described switching comprises that GSM switches.
11, method as claimed in claim 8 or 9, it is characterized in that, according to the number of times that switches mutually with user in user and the adjacent area in described each sub-district in the current frequency of each sub-district of frequency range and the reference time section in the reference zone, determine in the reference zone further to comprise with the reference reset frequency of each sub-district of frequency range:
With at least one sub-district is the possible reset frequency that zequin is determined each sub-district, wherein, when determining the possible reset frequency of each sub-district, according to the current frequency of this sub-district and the calculating frequency of adjacent area, and the number of times that the user is switched mutually in user and the adjacent area in this sub-district in the reference time section, determine the possible reset frequency of this sub-district, described adjacent area comprises the adjacent area that at least one has determined the possibility reset frequency, and the calculating frequency of having determined the adjacent area of possibility reset frequency is the possible reset frequency of this adjacent area, determines that the calculating frequency of the adjacent area of possibility reset frequency is the current frequency of this adjacent area;
According to each sub-district might reset frequency determine the reference reset frequency of each sub-district.
12, a kind of inking device of cell frequency is characterized in that, comprising:
Acquiring unit is used for obtaining in the reference zone number of times information of switching mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section;
Determining unit, be used for the number of times that switches mutually with user in described each sub-district user and the adjacent area in the current frequency of each sub-district of frequency range and the reference time section according in the reference zone, determine the reference reset frequency of described each sub-district, the reference reset frequency of described each sub-district is for improving the current total same/adjacent configuration frequency of disturbing frequently in each sub-district;
The replacement processing unit is used for the frequency of each sub-district is reset to it with reference to reset frequency.
13, device as claimed in claim 12 is characterized in that, described switching comprises that GSM switches.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300214A (en) * | 2010-06-28 | 2011-12-28 | 鼎桥通信技术有限公司 | Strong neighbor list generating method and device as well as channel selecting method and device |
| CN102595341A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Switching method of cluster call under semi-interworking scene and base station subsystem |
| WO2012129940A1 (en) * | 2011-03-30 | 2012-10-04 | 京信通信系统（中国）有限公司 | Dynamic optimization method, device and wireless communication system for wireless communication network |
| WO2012171503A1 (en) * | 2011-06-17 | 2012-12-20 | 华为技术有限公司 | Method and device for cell changing in heterogeneous network |
| CN105722114A (en) * | 2014-12-04 | 2016-06-29 | 中国移动通信集团公司 | Method and apparatus for analyzing downlink interference of LTE network |
| CN107343281A (en) * | 2017-06-30 | 2017-11-10 | 杭州清本科技有限公司 | Frequency spectrum planing method and computer-readable storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128473A (en) * | 1997-12-22 | 2000-10-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for frequency plan revision within a cellular telephone system using downlink interference estimates |
| CN1171472C (en) * | 2001-09-14 | 2004-10-13 | 上海大唐移动通信设备有限公司 | Frequency optimizing method |
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- 2008-08-29 CN CN2008101192287A patent/CN101662776B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102300214A (en) * | 2010-06-28 | 2011-12-28 | 鼎桥通信技术有限公司 | Strong neighbor list generating method and device as well as channel selecting method and device |
| WO2012129940A1 (en) * | 2011-03-30 | 2012-10-04 | 京信通信系统（中国）有限公司 | Dynamic optimization method, device and wireless communication system for wireless communication network |
| WO2012171503A1 (en) * | 2011-06-17 | 2012-12-20 | 华为技术有限公司 | Method and device for cell changing in heterogeneous network |
| CN102595341A (en) * | 2012-02-21 | 2012-07-18 | 中兴通讯股份有限公司 | Switching method of cluster call under semi-interworking scene and base station subsystem |
| CN102595341B (en) * | 2012-02-21 | 2017-10-10 | 中兴通讯股份有限公司 | The switching method and base station sub-system of trunked call under a kind of half interworking scene |
| CN105722114A (en) * | 2014-12-04 | 2016-06-29 | 中国移动通信集团公司 | Method and apparatus for analyzing downlink interference of LTE network |
| CN105722114B (en) * | 2014-12-04 | 2019-02-05 | 中国移动通信集团公司 | A kind of analysis method and device of the interference of LTE network downlink |
| CN107343281A (en) * | 2017-06-30 | 2017-11-10 | 杭州清本科技有限公司 | Frequency spectrum planing method and computer-readable storage medium |
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