CN104754614A - Method and device for optimizing antenna feed parameters of conformal antenna feeder system - Google Patents
Method and device for optimizing antenna feed parameters of conformal antenna feeder system Download PDFInfo
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Abstract
The invention discloses a method and a device for optimizing antenna feed parameters of a conformal antenna feeder system. The method comprises the steps of finding out a TD-SCDMA coordination optimizing database sample form to obtain M groups of data, and finding out a TD-SCDMA coordination optimization database sample form to obtain N groups of data, wherein each group of data of the M groups of data and the N groups of data includes the antenna feeder parameters of K types and K antenna feeder parameter values, and each type of feeder antenna corresponds to one antenna feeder parameter value; associating the M groups of data and N groups of data to obtain at least one group of associated data sets with the consistent K antenna feeder parameter values of the antenna feeder parameters of K types in the M groups of data and the N groups of data; determining a group of optimal antenna feeder parameter values adapted to the preset optimization demand from the at least one group of associated data sets according to the preset optimization demand, in order to adjust the conformal antenna feeder system according to the optimal antenna feeder parameter values.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of antenna-feed parameter optimization method and device of shared antenna antenna-feedback system.
Background technology
In the construction and Optimization Work of current TD-LTE, we are faced with complicated network structure degree and improve constantly, the fact that Radio Resource day is becoming tight., user day by day intensive in residential block is under the environment of radiation effect growing interest, the deployment of macrocellular network is subject to increasing resistance, site and terrace resource are also tending towards nervous, under this kind of background, the application of shared antenna alleviates this contradiction to a certain extent, and TD-SCDMA and TD-LTE shared antenna refers to and closes behind road the signal of TD-SCDMA and TD-LTE through the same face antenna transmission.Adopt shared antenna scheme can make not increase antenna amount, two cover system common antenna when building.
When building TD-LTE network, adopting TD-SCDMA and TD-LTE shared antenna mode, introducing and close road antenna, simplify construction process, reduce quantities and lower deployment cost.
But also there are some drawbacks, be especially embodied in complexity, covering power difference aspect that overall network is optimized.First, during TD-SCDMA and TD-LTE shared antenna, the deflection of antenna, the common parameters such as angle of declination are consistent, but the optimization of two kinds of network formats and the index of covering and demand all different, in addition because TD-SCDMA and TD-LTE Network Dept. uses frequency range there are differences, such as: TD-LTE adopts the networking of D frequency range, TD-SCDMA uses A frequency range or F-band, because frequency range interval is larger, penetration loss is variant, then under shared antenna condition, the network coverage radius of TD-LTE is different with the network coverage radius with site TD-SCDMA network, later stage is optimized and proposes challenge.
When antenna height is 40 meters, when angle of declination is adjusted to 5 degree from 0 degree, on the impact of TD-SCDMA network may be: effectively covering radius from 500 meters be contracted to 420 meters, community average signal strength RSCP is promoted to-80dBm from-85dBm, overlapping coverage 0.3 is down to 0.2, and average carrier/interface ratio (C/I) is promoted to 15dB from 12dB.To the TD-LTE community of common antenna feeder, the angle of declination of 5 degree can promote community SINR index, 13dB is increased to from 10dB, because the downloading rate of TD-LTE has stronger positive correlation with SINR index within the specific limits, under constant situation is made an uproar at the end, the average download rate of LTE community is approximately promoted to 35M/s from 28M/s, and covering radius is reduced to 350 meters from 400 meters, still can meet covering demand.If but Downtilt is adjusted to 10 degree, the result that may occur is: the covering radius of TD-LTE is reduced to 300 meters, the covering demand of this community still can be met; But the covering radius of TD-SCDMA is reduced to 350 meters, because TD-SCDMA network average headway is 400 meters, therefore cause covering cavity and occur, worsening appears in community indices.
For current TD-SCDMA and TD-LTE shared antenna antenna-feedback system, for complexity, covering power difference impact and cause covering cavity occur, there is the problems such as deterioration in community property indices, is not also optimized method to the antenna parameter of TD-SCDMA and TD-LTE shared antenna antenna-feedback system at present.
Summary of the invention
Embodiments provide a kind of antenna-feed parameter optimization method and device of shared antenna antenna-feedback system, for being optimized the antenna parameter of TD-SCDMA and TD-LTE shared antenna antenna-feedback system.
On the one hand, embodiments provide a kind of antenna-feed parameter optimization method of shared antenna antenna-feedback system, comprise: search TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-LTE cooperate optimization database sample table to obtain N group data, wherein, each group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer;
Associate described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data;
Preset optimization demand based on one and concentrate the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation from described at least one group of associated data, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value.
As shown from the above technical solution, based on TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table, carry out computing according to TD-SCDMA and the TD-LTE optimization aim determined to database to search, obtain the cooperate optimization antenna parameter meeting network optimization requirement.Avoid and manually adjustment and measurement is repeatedly carried out to antenna parameter, improve the optimization efficiency of the antenna parameter of shared antenna antenna-feedback system, the antenna parameter determined can be made more excellent, and occur therefore, it is possible to avoid covering cavity, community property indices parameter improves simultaneously.
Preferably, each the group data in described TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table also comprise the performance index parameter value corresponding with described K antenna-feed parameter value of described K kind antenna-feed parameter.
Preferably, described in search TD-SCDMA cooperate optimization database sample table to obtain M group data, comprising: the first performance threshold value determining TD-SCDMA community, described shared antenna antenna-feedback system place; The M group data meeting described first performance threshold value are searched in described TD-SCDMA cooperate optimization database sample table.In TD-SCDMA cooperate optimization database table sample, search the data meeting TD-SCDMA community main performance thresholding, ensure that the antenna-feed parameter after optimization can meet the demand of TD-SCDMA community.
Preferably, described in search TD-LTE cooperate optimization database sample table to obtain N group data, comprising: the second performance threshold value determining TD-LTE community, described shared antenna antenna-feedback system place; The N group data meeting described second performance threshold value are searched in described TD-LTE cooperate optimization database sample table.In TD-LTE cooperate optimization database table sample, search the data meeting TD-LTE community main performance thresholding, ensure that the antenna-feed parameter after optimization can meet the demand of TD-LTE community.
Preferably, described TD-SCDMA cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up.
According to the network characterization parameter of the structure such as road test data, model emulation data and webmaster statistics TD-SCDMA community, antenna-feed parameter and the inter-related database of subzone network performance, improve later stage antenna parameter optimization efficiency, also improve the accuracy of antenna parameter.
Preferably, described TD-LTE cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up.
According to the network characterization parameter of the structure such as road test data, model emulation data and webmaster statistics TD-LTE community, antenna-feed parameter and the inter-related database of subzone network performance, improve later stage antenna parameter optimization efficiency, also improve the accuracy of antenna parameter.
Preferably, describedly preset optimization demand based on one and to concentrate from described at least one group of associated data and determine the optimum antenna-feed parameter value with a group of described default optimization demand adaptation, comprising:
The Cooperative Optimization Algorithm corresponding according to described default optimization demand concentrates often group associated data to calculate to described at least one group of associated data respectively, obtains corresponding cooperate optimization coefficient value;
One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
Technical scheme in the embodiment of the present invention can calculate according to the specific cooperate optimization parameter calculation formula of different choice optimizing task, obtain the antenna prioritization scheme meeting optimization demand most, therefore antenna parameter can meet network TD-SCDMA network community demand or TD-LTE network cell demand according to the actual requirements and more.
Preferably, corresponding cooperate optimization coefficient value is determined according to following formula: M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i), wherein, M is cooperate optimization coefficient value, a, b, c investigates Factors Weighting value, R is the effective covering radius in community, RSRP is community average reception level, SINR is the average carrier/interface ratio in community, f, g, h is performance index normalized function, get r, s, i is for optimizing challenging value, described default optimization demand be TD-SCDMA priority covering or TD-SCDMA quality preferential time, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-SCDMA priority covering, a>b and a>c, described default optimization demand be TD-SCDMA speed preferential time, c>b and c>a, be when TD-LTE quality is preferential or TD-LTE speed is preferential in described default optimization demand, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-LTE priority covering, a>b and a>c, described default optimization demand be TD-LTE speed preferential time, c>b and c>a.Computing formula in the embodiment of the present invention can calculate fast to be determined and satisfies the demands and one of optimum group of antenna parameter.
Preferably, preset optimization demand based on one and to concentrate from described at least one group of associated data described and determine with one group of described default optimization demand adaptation after optimum antenna-feed parameter value, described method also comprises: after adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.Be increased to constantly to improve basic database in corresponding cooperate optimization database by the antenna parameter after optimizing, therefore antenna for base station carries out the effect meeting constantly lifting of cooperate optimization.
Second aspect, embodiments provides a kind of antenna-feed parameter optimization device of shared antenna antenna-feedback system, comprising:
Search unit, for searching TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-LTE cooperate optimization database sample table to obtain N group data, wherein, each the group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer;
Associative cell, for associating described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data;
Determining unit, concentrates the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value for presetting optimization demand based on one from described at least one group of associated data.
As shown from the above technical solution, based on TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table, carry out computing according to TD-SCDMA and the TD-LTE optimization aim determined to database to search, obtain the cooperate optimization antenna parameter meeting network optimization requirement.Avoid and manually adjustment and measurement is repeatedly carried out to antenna parameter, improve the optimization efficiency of the antenna parameter of shared antenna antenna-feedback system, the antenna parameter determined can be made more excellent, and occur therefore, it is possible to avoid covering cavity, community property indices parameter improves simultaneously.
Preferably, each the group data in described TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table also comprise the performance index parameter value corresponding with described K antenna-feed parameter value of described K kind antenna-feed parameter.
Preferably, described in search unit, specifically comprise: the first thresholding determination module, for determining the first performance threshold value of TD-SCDMA community, described shared antenna antenna-feedback system place; First searches module, in described TD-SCDMA cooperate optimization database sample table, search the M group data meeting described first performance threshold value.In TD-SCDMA cooperate optimization database table sample, search the data meeting TD-SCDMA community main performance thresholding, ensure that the antenna-feed parameter after optimization can meet the demand of TD-SCDMA community.
Preferably, described in search unit, specifically comprise: the second thresholding determination module, for determining the second performance threshold value of TD-LTE community, described shared antenna antenna-feedback system place; Second searches module, for searching the N group data meeting described second performance threshold value in described TD-LTE cooperate optimization database sample table.In TD-LTE cooperate optimization database table sample, search the data meeting TD-LTE community main performance thresholding, ensure that the antenna-feed parameter after optimization can meet the demand of TD-LTE community.
Preferably, described TD-SCDMA cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up.
According to the network characterization parameter of the structure such as road test data, model emulation data and webmaster statistics TD-SCDMA community, antenna-feed parameter and the inter-related database of subzone network performance, improve later stage antenna parameter optimization efficiency, also improve the accuracy of antenna parameter.
Preferably, described TD-LTE cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up.
According to the network characterization parameter of the structure such as road test data, model emulation data and webmaster statistics TD-LTE community, antenna-feed parameter and the inter-related database of subzone network performance, improve later stage antenna parameter optimization efficiency, also improve the accuracy of antenna parameter.
Preferably, described determining unit, comprising: the Cooperative Optimization Algorithm corresponding according to described default optimization demand concentrates often group associated data to calculate to described at least one group of associated data respectively, obtains corresponding cooperate optimization coefficient value; One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
Technical scheme in the embodiment of the present invention can calculate according to the specific cooperate optimization parameter calculation formula of different choice optimizing task, obtain the antenna prioritization scheme meeting optimization demand most, therefore antenna parameter can meet network TD-SCDMA network community demand or TD-LTE network cell demand according to the actual requirements and more.
Preferably, corresponding cooperate optimization coefficient value is determined according to following formula: M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i), wherein, M is cooperate optimization coefficient value, a, b, c investigates Factors Weighting value, R is the effective covering radius in community, RSRP is community average reception level, SINR is the average carrier/interface ratio in community, f, g, h is performance index normalized function, get r, s, i is for optimizing challenging value, described default optimization demand be TD-SCDMA priority covering or TD-SCDMA quality preferential time, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-SCDMA priority covering, a>b and a>c, described default optimization demand be TD-SCDMA speed preferential time, c>b and c>a, be when TD-LTE quality is preferential or TD-LTE speed is preferential in described default optimization demand, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-LTE priority covering, a>b and a>c, described default optimization demand be TD-LTE speed preferential time, c>b and c>a.Computing formula in the embodiment of the present invention can calculate fast to be determined and satisfies the demands and one of optimum group of antenna parameter.
Preferably, described device also comprises: updating block, for after adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.Be increased to constantly to improve basic database in corresponding cooperate optimization database by the antenna parameter after optimizing, therefore antenna for base station carries out the effect meeting constantly lifting of cooperate optimization.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the antenna-feed parameter optimization method of shared antenna antenna-feedback system in the embodiment of the present invention;
Fig. 2 is the relation table between the covering radius of the antenna height of certain D frequency range TD-LTE try net in the embodiment of the present invention, angle of declination and TD-LTE community;
Fig. 3 is the structural representation of the antenna-feed parameter optimization device of shared antenna antenna-feedback system in the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Based on TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table, according to TD-SCDMA and the TD-LTE optimization aim determined, computing is carried out to database and search, obtain the cooperate optimization antenna parameter meeting network optimization requirement.Avoid and manually adjustment and measurement is repeatedly carried out to antenna parameter, improve the optimization efficiency of the antenna parameter of shared antenna antenna-feedback system, also make the antenna parameter determined more excellent.
Be described in detail the present invention program below by specific embodiment, certainly, the present invention is not limited to following examples.
Shown in figure 1, Fig. 1 is the flow chart of the antenna-feed parameter optimization method of shared antenna antenna-feedback system in the embodiment of the present invention, and flow process comprises the steps:
Step 11: search TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-LTE cooperate optimization database sample table to obtain N group data, wherein, each group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer.
Step 12: associate described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data.
Step 13: preset optimization demand based on one and concentrate the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation from described at least one group of associated data, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value.
Introduce the execution mode of TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table in establishment step 11 below.
First, determine the network characterization parameter of TD-SCDMA and TD-LTE co-space feedback system, the network characterization parameter of the shared antenna antenna-feedback system that needs are determined comprises the characteristic conditions such as the characteristic condition such as working frequency range, the network equipment, overlay area, station spacing of TD-SCDMA network, and the working frequency range of TD-LTE network, the network equipment, overlay area, station spacing.
Then, 1, based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up, each the group data in the TD-SCDMA cooperate optimization database sample table of foundation also comprise the performance index parameter value corresponding with the antenna-feed parameter value of antenna-feed parameter.Specifically, according to the TD-SCDMA network characteristic parameter of the TD-SCDMA network determined, at the history drive test data of correspondence under the TD-SCDMA network characteristic parameter of correspondence, network management data, the parameter value with TD-SCDMA network characteristic parameter is obtained in the data such as model emulation data, and the many group antenna-feed parameter value corresponding with the parameter value of TD-SCDMA performance index parameter, in order to set up TD-SCDMA cooperate optimization database sample table.The parameter type that the TD-SCDMA cooperate optimization database sample table set up comprises is with reference to shown in following table 1, and table 1 is TD-SCDMA sample argument type list.
2, based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up, each the group data in the TD-LTE cooperate optimization database sample table of foundation also comprise the performance index parameter value corresponding with the antenna-feed parameter value of antenna-feed parameter.Specifically, according to the TD-LTE network characterization parameter of the TD-LTE network determined, history drive test data corresponding under the TD-LTE network characterization parameter of correspondence, network management data, the parameter value with TD-LTE network characterization parameter is obtained, in order to set up TD-LTE cooperate optimization database sample table in the data such as model emulation data.The parameter type that the TD-LTE cooperate optimization database sample table set up comprises is with reference to shown in following table 2, and table 2 is TD-LTE argument type list.
Table 1:
Table 2:
Optionally, in a step 11, search TD-SCDMA cooperate optimization database sample table to obtain the data that M group data are the performance threshold of the TD-SCDMA community meeting described shared antenna antenna-feedback system, search TD-LTE cooperate optimization database sample table to obtain the data that N group data are the performance threshold of the TD-LTE community meeting described shared antenna antenna-feedback system.
Specifically, search TD-SCDMA cooperate optimization database sample table to comprise with the step obtaining M group data: the first performance threshold value determining TD-SCDMA community, described shared antenna antenna-feedback system place; The M group data meeting described first performance threshold value are searched in described TD-SCDMA cooperate optimization database sample table.
Based on principle of uniformity, search TD-LTE cooperate optimization database sample table and comprise with the step obtaining N group data: the second performance threshold value determining TD-LTE community, described shared antenna antenna-feedback system place; The N group data meeting described second performance threshold value are searched in described TD-LTE cooperate optimization database sample table.
In specific implementation process, the first performance threshold and the second performance threshold are arranged according to actual performance demand, and such as, the first performance threshold can be: TD-SCDMA coverage radius of cell is no less than 400 meters, and average reception level RSCP is not less than-90dBm; First performance threshold can be: TD-LTE coverage radius of cell is no less than 300 meters, the average RSRP in community is not less than-95dBm, the average SINR in community is not less than 6dB.Certainly, can arrange according to actual performance demand in embody rule process, therefore the present invention does not limit.
In step 13, preset optimization demand can be TD-SCDMA priority covering, TD-SCDMA quality preferentially, TD-LTE priority covering, TD-LTE speed is preferential etc.Build the Cooperative Optimization Algorithm of cooperate optimization coefficient according to default optimization demand, concentrate often group associated data to calculate to described at least one group of associated data respectively, obtain corresponding cooperate optimization coefficient value; One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
The cooperate optimization computing formula corresponding with cooperate optimization coefficient below for different default optimization demand structures is illustrated.
1, when TD-SCDMA priority covering, corresponding TD-SCDMA priority covering coefficient is M
2=a
1× f (R, r)+b
1× g (RSCP, s)+c
1× h (SINR, i), wherein, a
1, b
1, c
1for investigation Factors Weighting value during TD-SCDMA priority covering, a
1>b
1and a
1>c
1.Such as, a can be set to based on experience value
1=0.5, b
1=0.3, c
1=0.2.R is the effective covering radius in TD-SCDMA community, RSCP is TD-SCDMA community average reception level, and SINR is the average carrier/interface ratio in TD-SCDMA community, and r=600m is the optimization challenging value of R, s=-75dBm is the optimization challenging value of RSCP, and i=17dB is the optimization challenging value of SINR.
F, g, h are performance index normalized function, when R meets or exceeds optimization challenging value r, and f(R, r)=1, when R does not reach r, linearly score.In like manner, when RSCP meets or exceeds optimization challenging value s, g(R, r)=1, when RSCP does not reach optimization challenging value s, carry out Linear Score.When SINR reaches optimization challenging value i, h(SINR, i)=1, when SINR does not reach optimization challenging value i, according to linear score.
2, when TD-SCDMA quality is preferential, corresponding TD-SCDMA quality preferred number is M
2=a
2× (R, r)+b
2(RSCP, s)+c
2(SINR, i), wherein, a
2, b
2, c
2for TD-SCDMA quality preferential time investigation Factors Weighting value, c
2>b
2and c
2>a
2, such as, a can be set to based on experience value
2=0.2, b
2=0.3, c
2=0.5.R is the effective covering radius in TD-SCDMA community, RSCP is TD-SCDMA community average reception level, and SINR is the average carrier/interface ratio in TD-SCDMA community, and r=600m is the optimization challenging value of R, s=-75dBm is the optimization challenging value of RSCP, and i=17dB is the optimization challenging value of SINR.F, g, h are performance index normalized function, M
2the account form of middle f, g, h is with reference to M
1the account form of middle f, g, h, succinct in order to specification, does not repeat them here.
3, during TD-LTE priority covering, corresponding TD-LTE priority covering coefficient is M
3=a
3× (R, r)+b
3(RSCP, s)+c
3(SINR, i), wherein, a
3, b
3, c
3for the investigation Factors Weighting value of TD-LTE priority covering, a
3>b
3and a
3>c
3, such as, a can be set to based on experience value
3=0.5, b
3=0.3, c
3=0.2.R is the effective covering radius in TD-LTE community, and RSCP is TD-LTE community average reception level, and SINR is the average carrier/interface ratio in TD-LTE community, and r=500m is the optimization challenging value of R, and s=-90dBm is the optimization challenging value of RSCP, and i=15dB is the optimization challenging value of SINR.F, g, h are performance index normalized function, M
3the account form of middle f, g, h is with reference to M
1the account form of middle f, g, h, succinct in order to specification, does not repeat them here.
4, when TD-LTE speed is preferential, the TD-LTE speed preferred number of corresponding correspondence is M
4=a
4× (R, r0+b
4(RSCP, s)+c
4(SINR, i), wherein, a
4, b
4, c
4for the investigation Factors Weighting value of TD-LTE speed, a
4>b
4and a
4>c
4, such as, a can be set to based on experience value
4=0.2, b
4=0.3, c
4=0.5.R is the effective covering radius in TD-LTE community, and RSCP is TD-LTE community average reception level, and SINR is the average carrier/interface ratio in TD-LTE community, and r=500m is the optimization challenging value of R, and s=-90dBm is the optimization challenging value of RSCP, and i=15dB is the optimization challenging value of SINR.F, g, h are performance index normalized function, M
4the account form of middle f, g, h is with reference to M
1the account form of middle f, g, h, succinct in order to specification, does not repeat them here.
According to one group of optimum antenna feeder value that step 13 is determined, corresponding optimizing and revising (antenna height, Downtilt, antenna gain, half-power angle etc.) is carried out to antenna for base station.
In specific implementation process, the technical scheme provided in the embodiment of the present invention also comprises: after adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table can be made to carry out upgrading and revising according to actual antennas parameter requirements, make the effect of next cooperate optimization better.
Suppose, certain shared antenna antenna-feedback system comprises TD-SCDMA cooperate optimization database sample table as shown in table 3 below, and the TD-LTE cooperate optimization database sample table shown in table 4.
Table 3
Table 4
And hypothesis comprises the performance requirement of the proposition of shared antenna antenna-feedback system:
(1) TD-LTE coverage radius of cell is no less than 250 meters, and TD-SCDMA coverage radius of cell is no less than 300 meters;
(2) SINR of TD-LTE community is greater than 16dB, and the average carrier/interface ratio in community of TD-SCDMA community is greater than 16dB;
(3) RSRP of TD-LTE community is greater than negative 90dbm, TD-SCDMA average reception level and is greater than negative 85dbm.
Below based on above-mentioned hypothesis, the technical scheme in the embodiment of the present invention is illustrated, but is not used in restriction the present invention.
After antenna-feed parameter optimal startup, first, the TD-SCDMA community of shared antenna antenna-feedback system and the network characterization parameter value of TD-LTE community that need optimization is determined, then, determine above-mentioned performance threshold (1), (2), (3), then, his-and-hers watches 3 and table 4 carry out screening and associating calculating, obtain the 2nd group of data, the 3rd group of data can meet above-mentioned performance threshold (1), (2), (3) antenna-feed parameter of the 2nd group of data in sky, the 3rd group of data is consistent, and in table 3 with table 4.
If presetting optimization demand is that TD-LTE speed is preferential, computing formula according to TD-LTE speed preferred number M4 calculates the 2nd group of antenna-feed parameter, the cooperate optimization coefficient value obtaining the 2nd group of antenna-feed parameter is 0.7, and the 3rd group of antenna-feed parameter is calculated, the cooperate optimization coefficient value obtaining the 3rd group of antenna-feed parameter is 0.6.Therefore, optimum according to the antenna-feed parameter value that the cooperate optimization coefficient value calculated is determined in the 2nd group of associated data as shown in table 5 below, with reference to the antenna height of certain the D frequency range TD-LTE try net shown in figure 2, angle of declination and TD-LTE community covering radius between relation table, and according to the antenna-feed parameter value shown in table 5, the selection of antenna model and the adjustment of antenna-feed parameter can be carried out.
Table 5
| Highly | Angle of declination | Gain | Transmitting power | Wave beam forming | MIMO |
| 35m | 10 degree | 12dbi | 35dbm | Be | Be |
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of antenna-feed parameter optimization device of shared antenna antenna-feedback system, shown in figure 3, comprises following structure:
Search unit 301, for searching TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-LTE cooperate optimization database sample table to obtain N group data, wherein, each the group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer;
Associative cell 302, for associating described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data;
Determining unit 303, concentrates the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value for presetting optimization demand based on one from described at least one group of associated data.
Preferably, each the group data in described TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table also comprise the performance index parameter value corresponding with described K antenna-feed parameter value of described K kind antenna-feed parameter.
Preferably, described in search unit 301, specifically comprise:
First thresholding determination module, for determining the first performance threshold value of TD-SCDMA community, described shared antenna antenna-feedback system place;
First searches module, in described TD-SCDMA cooperate optimization database sample table, search the M group data meeting described first performance threshold value.
Preferably, described in search unit 301, specifically comprise:
Second thresholding determination module, for determining the second performance threshold value of TD-LTE community, described shared antenna antenna-feedback system place;
Second searches module, for searching the N group data meeting described second performance threshold value in described TD-LTE cooperate optimization database sample table.
Preferably, described TD-SCDMA cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up.
Preferably, described TD-LTE cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up.
Preferably, described determining unit 303, comprising:
The Cooperative Optimization Algorithm corresponding according to described default optimization demand concentrates often group associated data to calculate to described at least one group of associated data respectively, obtains corresponding cooperate optimization coefficient value;
One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
Preferably, according to following formula:
M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i) determines corresponding cooperate optimization coefficient value;
Wherein, M is cooperate optimization coefficient value, and a, b, c investigate Factors Weighting value, and R is the effective covering radius in community, and RSRP is community average reception level, and SINR is the average carrier/interface ratio in community, and f, g, h are performance index normalized function, get r, and s, i are optimization challenging value,
Described default optimization demand be TD-SCDMA priority covering or TD-SCDMA quality preferential time, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-SCDMA priority covering, a>b and a>c, described default optimization demand be TD-SCDMA speed preferential time, c>b and c>a
Be when TD-LTE quality is preferential or TD-LTE speed is preferential in described default optimization demand, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-LTE priority covering, a>b and a>c, described default optimization demand be TD-LTE speed preferential time, c>b and c>a.
Preferably, described device also comprises:
Updating block, for after adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.
Various variation pattern in the antenna-feed parameter optimization method of the shared antenna antenna-feedback system in previous embodiment and instantiation are equally applicable to the antenna-feed parameter optimization device of the shared antenna antenna-feedback system of the present embodiment, by the detailed description of the aforementioned antenna-feed parameter optimization method to shared antenna antenna-feedback system, those skilled in the art clearly can know the implementation method of the antenna-feed parameter optimization device of shared antenna antenna-feedback system in the present embodiment, so succinct in order to specification, be not described in detail in this.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.The present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
According to defining herein, computer-readable medium does not comprise the computer readable media (transitory media) of non-standing, as data-signal and the carrier wave of modulation.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (18)
1. an antenna-feed parameter optimization method for shared antenna antenna-feedback system, is characterized in that, comprising:
Search TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-SCDMA cooperate optimization database sample table to obtain N group data, wherein, each group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer;
Associate described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data;
Preset optimization demand based on one and concentrate the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation from described at least one group of associated data, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value.
2. the method for claim 1, it is characterized in that, each the group data in described TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table also comprise the performance index parameter value corresponding with described K antenna-feed parameter value of described K kind antenna-feed parameter.
3. method as claimed in claim 2, is characterized in that, described in search TD-SCDMA cooperate optimization database sample table to obtain M group data, comprising:
Determine the first performance threshold value of TD-SCDMA community, described shared antenna antenna-feedback system place;
The M group data meeting described first performance threshold value are searched in described TD-SCDMA cooperate optimization database sample table.
4. method as claimed in claim 2, is characterized in that, described in search TD-LTE cooperate optimization database sample table to obtain N group data, comprising:
Determine the second performance threshold value of TD-LTE community, described shared antenna antenna-feedback system place;
The N group data meeting described second performance threshold value are searched in described TD-LTE cooperate optimization database sample table.
5. the method as described in claim arbitrary in claim 1-4, it is characterized in that, described TD-SCDMA cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up.
6. the method as described in claim arbitrary in claim 1-4, it is characterized in that, described TD-LTE cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up.
7. the method as described in claim arbitrary in claim 1-4, is characterized in that, describedly presets optimization demand based on one and to concentrate from described at least one group of associated data and determine the optimum antenna-feed parameter value with a group of described default optimization demand adaptation, comprising:
The Cooperative Optimization Algorithm corresponding according to described default optimization demand concentrates often group associated data to calculate to described at least one group of associated data respectively, obtains corresponding cooperate optimization coefficient value;
One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
8. method as claimed in claim 7, is characterized in that, according to following formula:
M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i) determines corresponding cooperate optimization coefficient value;
Wherein, M is cooperate optimization coefficient value, and a, b, c investigate Factors Weighting value, and R is the effective covering radius in community, and RSRP is community average reception level, and SINR is the average carrier/interface ratio in community, and f, g, h are performance index normalized function, get r, and s, i are optimization challenging value,
Described default optimization demand be TD-SCDMA priority covering or TD-SCDMA quality preferential time, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-SCDMA priority covering, a>b and a>c, described default optimization demand be TD-SCDMA speed preferential time, c>b and c>a
Be when TD-LTE quality is preferential or TD-LTE speed is preferential in described default optimization demand, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-LTE priority covering, a>b and a>c, described default optimization demand be TD-LTE speed preferential time, c>b and c>a.
9. the method for claim 1, is characterized in that, presets optimization demand and to concentrate from described at least one group of associated data described and determine that with one group of described default optimization demand adaptation after optimum antenna-feed parameter value, described method also comprises based on one:
After adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.
10. an antenna-feed parameter optimization device for shared antenna antenna-feedback system, is characterized in that, comprising:
Search unit, for searching TD-SCDMA cooperate optimization database sample table to obtain M group data, and search TD-LTE cooperate optimization database sample table to obtain N group data, wherein, each the group data in described M group data and described N group data comprise K antenna-feed parameter value of K kind antenna-feed parameter, wherein, often kind of corresponding antenna-feed parameter value of antenna-feed parameter, M, N be more than or equal to 1 integer, K be more than or equal to 1 integer;
Associative cell, for associating described M group data and described N group data, to obtain the described M group data at least one group associated data set consistent with K antenna-feed parameter value of the described K kind antenna-feed parameter in described N group data;
Determining unit, concentrates the one group of optimum antenna-feed parameter value determined with described default optimization demand adaptation, to make to adjust described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value for presetting optimization demand based on one from described at least one group of associated data.
11. devices as claimed in claim 10, it is characterized in that, each the group data in described TD-SCDMA cooperate optimization database sample table and TD-LTE cooperate optimization database sample table also comprise the performance index parameter value corresponding with described K antenna-feed parameter value of described K kind antenna-feed parameter.
12. devices as claimed in claim 11, is characterized in that, described in search unit, specifically comprise:
First thresholding determination module, for determining the first performance threshold value of TD-SCDMA community, described shared antenna antenna-feedback system place;
First searches module, in described TD-SCDMA cooperate optimization database sample table, search the M group data meeting described first performance threshold value.
13. devices as claimed in claim 11, is characterized in that, described in search unit, specifically comprise:
Second thresholding determination module, for determining the second performance threshold value of TD-LTE community, described shared antenna antenna-feedback system place;
Second searches module, for searching the N group data meeting described second performance threshold value in described TD-LTE cooperate optimization database sample table.
14. devices as described in claim arbitrary in claim 11-13, it is characterized in that, described TD-SCDMA cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-SCDMA community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-SCDMA performance index parameter and the basic database table sample set up.
15. devices as described in claim arbitrary in claim 11-13, it is characterized in that, described TD-LTE cooperate optimization database sample table is specially: based on the network characterization parameter of the TD-LTE community, described shared antenna antenna-feedback system place determined, the corresponding relation of antenna-feed parameter and TD-LTE performance index parameter and the basic database table sample set up.
16. devices as described in claim arbitrary in claim 11-13, it is characterized in that, described determining unit, comprising:
The Cooperative Optimization Algorithm corresponding according to described default optimization demand concentrates often group associated data to calculate to described at least one group of associated data respectively, obtains corresponding cooperate optimization coefficient value;
One group of antenna-feed parameter value in one group of associated data of cooperate optimization coefficient value optimum is selected to be described optimum antenna-feed parameter value.
17. devices as claimed in claim 16, is characterized in that, according to following formula:
M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i) determines corresponding cooperate optimization coefficient value;
Wherein, M is cooperate optimization coefficient value, and a, b, c investigate Factors Weighting value, and R is the effective covering radius in community, and RSRP is community average reception level, and SINR is the average carrier/interface ratio in community, and f, g, h are performance index normalized function, get r, and s, i are optimization challenging value,
Described default optimization demand be TD-SCDMA priority covering or TD-SCDMA quality preferential time, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-SCDMA priority covering, a>b and a>c, described default optimization demand be TD-SCDMA speed preferential time, c>b and c>a
Be when TD-LTE quality is preferential or TD-LTE speed is preferential in described default optimization demand, RSRP, SINR, R is respectively the performance index parameter value in TD-SCDMA cooperate optimization database, when described default optimization demand is TD-LTE priority covering, a>b and a>c, described default optimization demand be TD-LTE speed preferential time, c>b and c>a.
18. devices as claimed in claim 10, it is characterized in that, described device also comprises:
Updating block, for after adjusting described shared antenna antenna-feedback system based on described optimum antenna-feed parameter value, the current antenna-feed parameter based on described shared antenna antenna-feedback system upgrades described TD-SCDMA cooperate optimization database sample table or TD-LTE cooperate optimization database sample table.
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