CN104754614B - A kind of antenna-feed parameter optimization method and device of shared antenna antenna-feeder system - Google Patents

Abstract

The invention discloses a method and device for optimizing antenna parameters of a common-antenna antenna-feed system. The method for optimizing antenna parameters of a common-antenna antenna-feed system includes: searching for a TD‑SCDMA collaborative optimization database sample table to obtain M groups of data, and Search the TD-SCDMA collaborative optimization database sample table to obtain N sets of data, wherein, each set of data in the M sets of data and the N sets of data includes K antenna feed parameter values of K kinds of antenna feed parameters, wherein, Each antenna parameter corresponds to an antenna parameter value; associating the M sets of data with the N sets of data to obtain K of the K antenna parameters in the M sets of data and the N sets of data At least one group of associated data sets with consistent antenna feeder parameter values; based on a preset optimization requirement, a set of optimal antenna feeder parameter values adapted to the preset optimization requirement is determined from the at least one group of associated data sets, so as to Adjusting the common-antenna antenna feed system based on the optimal antenna feed parameter value.

Description

An antenna feed parameter optimization method and device for a common antenna antenna feed system

technical field

The invention relates to the field of electronic technology, in particular to a method and device for optimizing antenna parameters of a common-antenna antenna-feed system.

Background technique

In the current TD-LTE construction and optimization work, we are faced with the fact that the complexity of the network structure is constantly increasing and the wireless resources are becoming increasingly tense. In an environment where residential areas are becoming denser and users are increasingly concerned about the impact of radiation, the deployment of macro-cellular networks is facing increasing resistance, and site and space resources are also becoming tighter. In this context, the application of common antennas To a certain extent, this contradiction is alleviated. The common antenna of TD-SCDMA and TD-LTE means that the signals of TD-SCDMA and TD-LTE are combined and transmitted through the same antenna. Using the common antenna scheme can make the number of antennas not increase during construction, and the two systems share antennas.

When constructing the TD-LTE network, TD-SCDMA and TD-LTE share the same antenna mode and introduce combined antenna, which simplifies the construction process and reduces the engineering quantity and deployment cost.

But there are also some disadvantages, especially in the complexity of overall network optimization and the difference in coverage capabilities. First of all, when TD-SCDMA and TD-LTE share the same antenna, the common parameters such as the direction angle and downtilt angle of the antenna are the same, but the optimization and coverage indicators and requirements of the two network standards are different. In addition, because TD-SCDMA and TD - There are differences in the frequency bands used by the LTE network department. For example, TD-LTE uses D-band to build a network, and TD-SCDMA uses A-band or F-band. Due to the large frequency band interval, the penetration loss is different. Under the condition of common antennas, TD- The network coverage radius of LTE is different from the network coverage radius of TD-SCDMA network at the same site, which poses a challenge to later optimization.

When the antenna height is 40 meters and the downtilt angle is adjusted from 0 degrees to 5 degrees, the impact on the TD-SCDMA network may be: the effective coverage radius is reduced from 500 meters to 420 meters, and the average signal strength RSCP of the cell is increased from -85dBm to - 80dBm, the overlapping coverage is reduced from 0.3 to 0.2, and the average carrier-to-interference ratio (C/I) is increased from 12dB to 15dB. For a TD-LTE cell with a common antenna feeder, a downtilt angle of 5 degrees will increase the SINR index of the cell from 10dB to 13dB. Since the download rate of TD-LTE has a strong positive correlation with the SINR index within a certain range, when With the noise floor unchanged, the average download rate of the LTE cell is increased from 28M/s to 35M/s, and the coverage radius is reduced from 400 meters to 350 meters, which can still meet the coverage requirements. However, if the antenna downtilt is adjusted to 10 degrees, the possible result is: the coverage radius of TD-LTE is reduced to 300 meters, which can still meet the coverage requirements of the cell; but the coverage radius of TD-SCDMA is reduced to 350 meters, due to The average distance between TD-SCDMA networks is 400 meters, which leads to the occurrence of coverage holes and the deterioration of various indicators of the cell.

For the current TD-SCDMA and TD-LTE common-antenna antenna feeder system, the coverage holes caused by the influence of complexity and coverage difference, and the deterioration of various performance indicators of the cell, there is no solution for TD-SCDMA and TD -A method for optimizing antenna parameters of an LTE common-antenna antenna-feed system.

Contents of the invention

Embodiments of the present invention provide a method and device for optimizing antenna parameters of a common-antenna antenna-feed system, which are used for optimizing antenna parameters of a TD-SCDMA and TD-LTE common-antenna antenna-feed system.

On the one hand, an embodiment of the present invention provides a method for optimizing antenna parameters of a common-antenna antenna-feed system, including: searching for a TD-SCDMA collaborative optimization database sample table to obtain M sets of data, and searching for a TD-LTE collaborative optimization database sample table Obtaining N sets of data, wherein the M sets of data and each set of data in the N sets of data include K antenna parameter values of K antenna parameters, wherein each antenna parameter corresponds to an antenna feed Parameter value, M, N are integers greater than or equal to 1, K is an integer greater than or equal to 1;

Associating the M sets of data with the N sets of data to obtain at least one set of associated data sets in which the M sets of data are consistent with the K antenna feeder parameter values of the K antenna feeder parameters in the N sets of data ;

Based on a preset optimization requirement, a set of optimal antenna feeder parameter values adapted to the preset optimization requirement is determined from the at least one set of associated data sets, so that the optimal antenna feeder parameter value is adjusted based on the optimal antenna feeder parameter value. Common antenna antenna feed system.

It can be seen from the above technical scheme that based on the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table, the database is searched according to the determined TD-SCDMA and TD-LTE optimization objectives, and the collaborative optimization requirements that meet the network optimization requirements are obtained. Optimize antenna parameters. It avoids repeated adjustment and testing of antenna parameters manually, improves the optimization efficiency of antenna parameters in the common antenna antenna feed system, and can make the determined antenna parameters better, so it can avoid coverage holes, and various performance index parameters of the cell improve.

Preferably, each set of data in the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table also includes performance corresponding to the K antenna feeder parameter values of the K antenna feeder parameters Indicator parameter value.

Preferably, said searching the TD-SCDMA collaborative optimization database sample table to obtain M groups of data includes: determining the first performance threshold of the TD-SCDMA cell where the common antenna feeder system is located; Searching for M sets of data satisfying the first performance threshold in the optimized database sample table. In the TD-SCDMA collaborative optimization database table, the data that meets the main performance threshold of the TD-SCDMA cell is searched to ensure that the optimized antenna parameters can meet the requirements of the TD-SCDMA cell.

Preferably, said searching the TD-LTE collaborative optimization database sample table to obtain N sets of data includes: determining the second performance threshold of the TD-LTE cell where the common antenna feeder system is located; Searching for N sets of data satisfying the second performance threshold in the optimized database sample table. In the TD-LTE collaborative optimization database table, the data that meets the main performance threshold of the TD-LTE cell is searched to ensure that the optimized antenna parameters can meet the requirements of the TD-LTE cell.

Preferably, the TD-SCDMA collaborative optimization database sample table is specifically: based on the determined corresponding relationship between the network characteristic parameters of the TD-SCDMA cell where the common-antenna antenna feeder system is located, antenna feeder parameters, and TD-SCDMA performance index parameters The established basic database table sample.

According to the road test data, model simulation data and network management statistical data, etc., construct a database of TD-SCDMA cell network characteristic parameters, antenna feeder parameters and cell network performance, which improves the efficiency of antenna parameter optimization in the later stage, and also improves the accuracy of antenna parameters. Spend.

Preferably, the TD-LTE collaborative optimization database sample table is specifically: based on the determined network characteristic parameters of the TD-LTE cell where the common antenna feeder system is located, the corresponding relationship between the antenna feeder parameters and the TD-LTE performance index parameters The established basic database table sample.

According to the road test data, model simulation data and network management statistical data, etc., the network characteristic parameters of the TD-LTE cell, the antenna feeder parameters and the network performance of the cell are interrelated databases, which improve the efficiency of antenna parameter optimization in the later stage, and also improve the accuracy of antenna parameters. Spend.

Preferably, the determining a set of optimal antenna feed parameter values adapted to the preset optimization requirement from the at least one set of associated data sets based on a preset optimization requirement includes:

Calculating each set of associated data in the at least one set of associated data sets according to the collaborative optimization algorithm corresponding to the preset optimization requirement to obtain a corresponding collaborative optimization coefficient value;

A group of antenna feeder parameter values in a group of associated data with an optimal collaborative optimization coefficient value is selected as the optimal antenna feeder parameter value.

The technical solution in the embodiment of the present invention can be calculated according to different optimization tasks by selecting a specific collaborative optimization parameter calculation formula to obtain the antenna optimization solution that best meets the optimization requirements, so the antenna parameters can be more in line with the network TD-SCDMA network according to actual needs Cell requirements or TD-LTE network cell requirements.

Preferably, according to the following formula: M=a×f(R, r)+b×g(RSCP, s)+c×h(SINR, i) determine the corresponding collaborative optimization coefficient value; wherein, M is the collaborative optimization coefficient a, b, and c are the weighted values of the investigation factors, R is the effective coverage radius of the cell, RSRP is the average receiving level of the cell, SINR is the average carrier-to-interference ratio of the cell, f, g, and h are the normalization functions of performance indicators, and take r, s, and i are optimization challenge values. When the preset optimization requirement is TD-SCDMA coverage priority or TD-SCDMA quality priority, RSRP, SINR, and R are the performance index parameter values in the TD-SCDMA collaborative optimization database respectively , when the preset optimization requirement is TD-SCDMA coverage priority, a>b and a>c, when the preset optimization requirement is TD-SCDMA rate priority, c>b and c>a, in the When the preset optimization requirement is TD-LTE quality priority or TD-LTE rate priority, RSRP, SINR, and R are respectively the performance index parameter values in the TD-SCDMA collaborative optimization database, and the preset optimization requirement is TD-LTE coverage When priority is given, a>b and a>c, and when the preset optimization requirement is TD-LTE rate priority, c>b and c>a. The calculation formula in the embodiment of the present invention can quickly calculate and determine a set of antenna parameters that meet requirements and are optimal.

Preferably, after determining a set of optimal antenna feeder parameter values adapted to the preset optimization requirement from the at least one set of associated data sets based on a preset optimization requirement, the method further includes: After the common antenna feeder system is adjusted based on the optimal antenna feeder parameter value, update the TD-SCDMA collaborative optimization database sample table or TD-LTE collaborative optimization based on the current antenna feeder parameters of the common antenna feeder system Optimize database sample tables. The optimized antenna parameters are added to the corresponding collaborative optimization database to continuously improve the basic database, so the effect of collaborative optimization of base station antennas will continue to improve.

In the second aspect, an embodiment of the present invention provides an antenna feed parameter optimization device for a common antenna antenna feed system, including:

A search unit is used to search for a TD-SCDMA collaborative optimization database sample table to obtain M groups of data, and to search for a TD-LTE collaborative optimization database sample table to obtain N groups of data, wherein the M group of data and the N group of data Each set of data includes K antenna parameter values of K antenna parameters, where each antenna parameter corresponds to an antenna parameter value, M, N are integers greater than or equal to 1, and K is an integer greater than or equal to 1 ;

An associating unit, configured to associate the M sets of data with the N sets of data, so as to obtain at least one of the M sets of data that is consistent with the K antenna parameter values of the K types of antenna feed parameters in the N sets of data. A set of linked datasets;

A determining unit, configured to determine from the at least one set of associated data sets based on a preset optimization requirement, a set of optimal antenna feeder parameter values adapted to the preset optimization requirement, so that based on the optimal antenna feeder The parameter value adjusts the common antenna antenna feed system.

It can be seen from the above technical scheme that based on the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table, the database is searched according to the determined TD-SCDMA and TD-LTE optimization goals, and the collaborative optimization requirements that meet the network optimization requirements are obtained. Optimize antenna parameters. It avoids repeated adjustment and testing of antenna parameters manually, improves the optimization efficiency of antenna parameters in the common antenna antenna feed system, and can make the determined antenna parameters better, so it can avoid coverage holes, and various performance index parameters of the cell improve.

Preferably, each set of data in the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table also includes performance corresponding to the K antenna feeder parameter values of the K antenna feeder parameters Indicator parameter value.

Preferably, the search unit specifically includes: a first threshold determination module, configured to determine the first performance threshold of the TD-SCDMA cell where the common antenna feeder system is located; the first search module, in the TD- Searching for M sets of data satisfying the first performance threshold in the sample table of the SCDMA collaborative optimization database. In the TD-SCDMA collaborative optimization database table, the data that meets the main performance threshold of the TD-SCDMA cell is searched to ensure that the optimized antenna parameters can meet the requirements of the TD-SCDMA cell.

Preferably, the search unit specifically includes: a second threshold determination module, configured to determine a second performance threshold of the TD-LTE cell where the common antenna feeder system is located; Find N sets of data that meet the second performance threshold in the TD-LTE collaborative optimization database sample table. In the TD-LTE collaborative optimization database table, the data that meets the main performance threshold of the TD-LTE cell is searched to ensure that the optimized antenna parameters can meet the requirements of the TD-LTE cell.

Preferably, the TD-SCDMA collaborative optimization database sample table is specifically: based on the determined corresponding relationship between the network characteristic parameters of the TD-SCDMA cell where the common-antenna antenna feeder system is located, antenna feeder parameters, and TD-SCDMA performance index parameters The established basic database table sample.

According to the road test data, model simulation data and network management statistical data, etc., construct a database of TD-SCDMA cell network characteristic parameters, antenna feeder parameters and cell network performance, which improves the efficiency of antenna parameter optimization in the later stage, and also improves the accuracy of antenna parameters. Spend.

Preferably, the TD-LTE collaborative optimization database sample table is specifically: based on the determined corresponding relationship between the network characteristic parameters of the TD-LTE cell where the common antenna feeder system is located, antenna feeder parameters and TD-LTE performance index parameters The established basic database table sample.

According to the road test data, model simulation data and network management statistical data, etc., the network characteristic parameters of the TD-LTE cell, the antenna feeder parameters and the network performance of the cell are interrelated databases, which improve the efficiency of antenna parameter optimization in the later stage, and also improve the accuracy of antenna parameters. Spend.

Preferably, the determination unit includes: respectively calculating each set of associated data in the at least one set of associated data sets according to the collaborative optimization algorithm corresponding to the preset optimization requirement, to obtain the corresponding collaborative optimization coefficient value; select the collaborative optimization A set of antenna feed parameter values in a set of associated data with the optimal coefficient value is the optimal antenna feed parameter value.

The technical solution in the embodiment of the present invention can be calculated according to different optimization tasks by selecting a specific collaborative optimization parameter calculation formula to obtain the antenna optimization solution that best meets the optimization requirements, so the antenna parameters can be more in line with the network TD-SCDMA network according to actual needs Cell requirements or TD-LTE network cell requirements.

Preferably, according to the following formula: M=a×f(R, r)+b×g(RSCP, s)+c×h(SINR, i) determine the corresponding collaborative optimization coefficient value; wherein, M is the collaborative optimization coefficient a, b, and c are the weighted values of the investigation factors, R is the effective coverage radius of the cell, RSRP is the average receiving level of the cell, SINR is the average carrier-to-interference ratio of the cell, f, g, and h are the normalization functions of performance indicators, and take r, s, and i are optimization challenge values. When the preset optimization requirement is TD-SCDMA coverage priority or TD-SCDMA quality priority, RSRP, SINR, and R are the performance index parameter values in the TD-SCDMA collaborative optimization database respectively , when the preset optimization requirement is TD-SCDMA coverage priority, a>b and a>c, when the preset optimization requirement is TD-SCDMA rate priority, c>b and c>a, in the When the preset optimization requirement is TD-LTE quality priority or TD-LTE rate priority, RSRP, SINR, and R are respectively the performance index parameter values in the TD-SCDMA collaborative optimization database, and the preset optimization requirement is TD-LTE coverage When priority is given, a>b and a>c, and when the preset optimization requirement is TD-LTE rate priority, c>b and c>a. The calculation formula in the embodiment of the present invention can quickly calculate and determine a set of antenna parameters that meet requirements and are optimal.

Preferably, the device further includes: an updating unit, configured to update the current antenna feeder parameters of the common antenna feeder system after adjusting the common antenna feeder system based on the optimal antenna feeder parameter value The TD-SCDMA collaborative optimization database sample table or the TD-LTE collaborative optimization database sample table. The optimized antenna parameters are added to the corresponding collaborative optimization database to continuously improve the basic database, so the effect of collaborative optimization of base station antennas will continue to improve.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a flow chart of an antenna feeder parameter optimization method for a common antenna feeder system according to an embodiment of the present invention;

Fig. 2 is the relationship table between the antenna height, downtilt angle and the coverage radius of TD-LTE sub-district of certain D frequency band TD-LTE test network in the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an antenna feeder parameter optimization device for a common antenna antenna feeder system according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Based on the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table, the database is searched according to the determined TD-SCDMA and TD-LTE optimization goals, and the collaborative optimization antenna parameters that meet the network optimization requirements are obtained. It avoids manual adjustment and testing of the antenna parameters repeatedly, improves the optimization efficiency of the antenna parameters of the common-antenna antenna feed system, and makes the determined antenna parameters more optimal.

The solution of the present invention will be described in detail below through specific examples. Of course, the present invention is not limited to the following examples.

Referring to FIG. 1, FIG. 1 is a flow chart of an antenna feeder parameter optimization method for a common antenna antenna feeder system according to an embodiment of the present invention. The process includes the following steps:

Step 11: Find the TD-SCDMA collaborative optimization database sample table to obtain M groups of data, and search the TD-LTE collaborative optimization database sample table to obtain N groups of data, wherein each of the M groups of data and the N groups of data A set of data includes K antenna parameter values of K types of antenna parameters, wherein each antenna parameter corresponds to one antenna parameter value, M and N are integers greater than or equal to 1, and K is an integer greater than or equal to 1.

Step 12: Associating the M sets of data with the N sets of data to obtain at least one set of the M sets of data consistent with the K antenna parameter values of the K antenna feed parameters in the N sets of data Associated datasets.

Step 13: Determine a set of optimal antenna feeder parameter values from the at least one set of associated data sets based on a preset optimization requirement, so that based on the optimal antenna feeder parameter value Adjust the common antenna antenna feed system.

The implementation manner of establishing the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table in step 11 is introduced below.

First, determine the network characteristic parameters of the TD-SCDMA and TD-LTE common antenna feeder system. The network characteristic parameters of the common antenna feeder system that need to be determined include the operating frequency band, network equipment, coverage area, and station distance of the TD-SCDMA network. Conditions, as well as characteristic conditions such as the operating frequency band, network equipment, coverage area, and station distance of the TD-LTE network.

Then, 1, based on the network characteristic parameters of the TD-SCDMA sub-district where the common antenna antenna feeder system is located, the basic database form set up based on the corresponding relationship between the antenna feeder parameters and the TD-SCDMA performance index parameters, the TD-SCDMA set up Each set of data in the collaborative optimization database sample table also includes performance index parameter values corresponding to the antenna feeder parameter values of the antenna feeder parameters. Specifically, according to the determined TD-SCDMA network characteristic parameters of the TD-SCDMA network, the corresponding TD-SCDMA network characteristic parameters are obtained from the corresponding historical drive test data, network management data, model simulation data and other data. - Parameter values of SCDMA network characteristic parameters, and multiple sets of antenna feeder parameter values corresponding to parameter values of TD-SCDMA performance index parameters, used to establish a TD-SCDMA collaborative optimization database sample table. The parameter types included in the established TD-SCDMA collaborative optimization database sample table are shown in Table 1 below, and Table 1 is a table of TD-SCDMA sample parameter types.

2. Based on the determined network characteristic parameters of the TD-LTE cell where the common antenna feeder system is located, the basic database table established based on the corresponding relationship between the antenna feeder parameters and the TD-LTE performance index parameters, and the established TD-LTE collaborative optimization Each set of data in the database sample table also includes performance index parameter values corresponding to the antenna feeder parameter values of the antenna feeder parameters. Specifically, according to the determined TD-LTE network characteristic parameters of the TD-LTE network, the corresponding historical drive test data, network management data, model simulation data and other data corresponding to the TD-LTE network characteristic parameters are obtained from the TD-LTE The parameter value of the characteristic parameter of the LTE network is used to establish a sample table of the TD-LTE collaborative optimization database. The parameter types included in the established TD-LTE collaborative optimization database sample table are shown in Table 2 below, and Table 2 is a table of TD-LTE parameter types.

Table 1:

Table 2:

Optionally, in step 11, look up the TD-SCDMA collaborative optimization database sample table to obtain M groups of data to meet the performance threshold data of the TD-SCDMA cell of the common antenna feeder system, search the TD-LTE collaborative optimization database The sample table to obtain N sets of data is the data meeting the performance threshold of the TD-LTE cell of the common antenna feeder system.

Specifically, the step of searching the TD-SCDMA cooperative optimization database sample table to obtain M groups of data includes: determining the first performance threshold of the TD-SCDMA cell where the common antenna feeder system is located; Searching for M sets of data satisfying the first performance threshold in the optimized database sample table.

Based on the same principle, the step of searching the TD-LTE collaborative optimization database sample table to obtain N groups of data includes: determining the second performance threshold of the TD-LTE cell where the common antenna feeder system is located; Searching for N sets of data satisfying the second performance threshold in the optimized database sample table.

In the specific implementation process, the first performance threshold and the second performance threshold are set according to actual performance requirements. For example, the first performance threshold can be: TD-SCDMA cell coverage radius is not less than 400 meters, and the average receiving level RSCP is not low The first performance threshold may be: TD-LTE cell coverage radius is not less than 300 meters, the average RSRP of the cell is not lower than -95dBm, and the average SINR of the cell is not lower than 6dB. Of course, it can be set according to actual performance requirements in a specific application process, so the present invention is not limited thereto.

In step 13, the preset optimization requirement may be TD-SCDMA coverage priority, TD-SCDMA quality priority, TD-LTE coverage priority, TD-LTE rate priority and so on. Construct a collaborative optimization algorithm for collaborative optimization coefficients according to preset optimization requirements, respectively calculate each group of associated data in the at least one group of associated data sets, and obtain corresponding collaborative optimization coefficient values; select a group of associations with the best value for collaborative optimization coefficients A set of antenna feed parameter values in the data is the optimal antenna feed parameter value.

The collaborative optimization calculation formulas corresponding to the collaborative optimization coefficients constructed according to different preset optimization requirements are illustrated below with examples.

1. When TD-SCDMA coverage is prioritized, the corresponding TD-SCDMA coverage priority coefficient is M ₂ =a ₁ ×f(R,r)+b ₁ ×g(RSCP,s)+c ₁ ×h(SINR,i ), where a ₁ , b ₁ , and c ₁ are the weighted values of consideration factors when TD-SCDMA coverage is prioritized, and a ₁ >b ₁ and a ₁ >c ₁ . For example, a ₁ =0.5, b ₁ =0.3, and c ₁ =0.2 can be set according to empirical values. R is the effective coverage radius of TD-SCDMA cell, RSCP is the average receiving level of TD-SCDMA cell, SINR is the average carrier-to-interference ratio of TD-SCDMA cell, r=600m is the optimization challenge value of R, s=-75dBm is the optimization of RSCP Challenge value, i=17dB is the optimal challenge value of SINR.

f, g, h are performance index normalization functions, when R reaches or exceeds the optimization challenge value r, f(R, r) = 1, and when R does not reach r, perform linear scoring. Similarly, when the RSCP reaches or exceeds the optimal challenge value s, g(R, r)=1, and when the RSCP does not reach the optimal challenge value s, linear scoring is performed. When the SINR reaches the optimal challenge value i, h(SINR, i)=1, and when the SINR does not reach the optimal challenge value i, linear scoring is used.

2. When TD-SCDMA quality is prioritized, the corresponding TD-SCDMA quality priority coefficient is M ₂ =a ₂ ×(R,r)+b ₂ (RSCP,s)+c ₂ (SINR,i), where a ₂ , b ₂ , c ₂ are the weighted values of consideration factors when TD-SCDMA quality is prioritized, c ₂ >b ₂ and c ₂ >a ₂ , for example, it can be set as a ₂ =0.2, b ₂ =0.3, c ₂ = 0.5. R is the effective coverage radius of TD-SCDMA cell, RSCP is the average receiving level of TD-SCDMA cell, SINR is the average carrier-to-interference ratio of TD-SCDMA cell, r=600m is the optimization challenge value of R, s=-75dBm is the optimization of RSCP Challenge value, i=17dB is the optimal challenge value of SINR. f, g, and h are performance index normalization functions. The calculation methods of f, g, and h in M ₂ refer to the calculation methods of f, g, and h in M _1. For the sake of brevity, details are not repeated here.

3. When TD-LTE coverage is prioritized, the corresponding TD-LTE coverage priority coefficient is M ₃ =a ₃ ×(R,r)+b ₃ (RSCP,s)+c ₃ (SINR,i), where a ₃ , b ₃ , c ₃ are the weighted values of consideration factors for TD-LTE coverage priority, a ₃ >b ₃ and a ₃ >c ₃ , for example, can be set as a ₃ =0.5, b ₃ =0.3, c ₃ according to empirical values = 0.2. R is the effective coverage radius of TD-LTE cell, RSCP is the average receiving level of TD-LTE cell, SINR is the average carrier-to-interference ratio of TD-LTE cell, r=500m is the optimization challenge value of R, s=-90dBm is the optimization of RSCP Challenge value, i=15dB is the optimal challenge value of SINR. f, g, and h are performance index normalization functions. The calculation methods of f, g, and h in M ₃ refer to the calculation methods of f, g, and h in M _1. For the sake of brevity, details are not repeated here.

4. When the TD-LTE rate is prioritized, the corresponding corresponding TD-LTE rate priority coefficient is M ₄ =a ₄ ×(R,r)+b ₄ (RSCP,s)+c ₄ (SINR,i), where, a ₄ , b ₄ , and c ₄ are the weighted values of the consideration factors for the TD-LTE rate, a ₄ >b ₄ and a ₄ >c ₄ , for example, it can be set as a ₄ =0.2, b ₄ =0.3, c ₄ = 0.5. R is the effective coverage radius of TD-LTE cell, RSCP is the average receiving level of TD-LTE cell, SINR is the average carrier-to-interference ratio of TD-LTE cell, r=500m is the optimization challenge value of R, s=-90dBm is the optimization of RSCP Challenge value, i=15dB is the optimal challenge value of SINR. f, g, and h are performance index normalization functions. The calculation methods of f, g, and h in M ₄ refer to the calculation methods of f, g, and h in M _1. For the sake of brevity, details are not repeated here.

According to a set of optimal antenna feed values determined in step 13, the base station antenna is optimized and adjusted accordingly (antenna height, antenna downtilt, antenna gain, half power angle, etc.).

In the specific implementation process, the technical solution provided in the embodiment of the present invention further includes: after adjusting the common-antenna antenna-feeder system based on the optimal antenna-feeder parameter value, based on the current Antenna feeder parameters update the TD-SCDMA collaborative optimization database sample table or TD-LTE collaborative optimization database sample table. The TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table can be updated and corrected according to actual antenna parameter requirements, so that the next collaborative optimization effect will be better.

It is assumed that a common antenna feeder system includes a TD-SCDMA collaborative optimization database sample table shown in Table 3 and a TD-LTE collaborative optimization database sample table shown in Table 4.

table 3

Table 4

And assume that the proposed performance requirements for the common antenna feeder system include:

(1) TD-LTE cell coverage radius is not less than 250 meters, and TD-SCDMA cell coverage radius is not less than 300 meters;

(2) The SINR of the TD-LTE cell is greater than 16dB, and the average carrier-to-interference ratio of the TD-SCDMA cell is greater than 16dB;

(3) The RSRP of the TD-LTE cell is greater than negative 90dbm, and the average receiving level of TD-SCDMA is greater than negative 85dbm.

Based on the above assumptions, the technical solutions in the embodiments of the present invention are illustrated below, but are not intended to limit the present invention.

After the antenna feeder parameter optimization is started, first, determine the network characteristic parameter values of the TD-SCDMA cell and the TD-LTE cell of the common antenna feeder system to be optimized, and then determine the above performance thresholds (1), (2), (3), then, perform screening and correlation calculation on Table 3 and Table 4, and obtain the second set of data and the third set of data that can meet the above performance thresholds (1), (2), (3), and in Table 3 and The antenna feed parameters of the second group data and the third group data in Table 4 are consistent.

If the preset optimization requirement is TD-LTE rate priority, the second group of antenna feeder parameters are calculated according to the calculation formula of TD-LTE rate priority coefficient M ₄ , and the collaborative optimization coefficient value of the second group of antenna feeder parameters is 0.7, and The third group of antenna feeder parameters are calculated, and the collaborative optimization coefficient value of the third group of antenna feeder parameters is 0.6. Therefore, according to the calculated collaborative optimization coefficient value, it is determined that the antenna feed parameter value in the second group of associated data shown in Table 5 is optimal, referring to the antenna height, The relationship table between the downtilt angle and the coverage radius of the TD-LTE cell, as well as the antenna feeder parameter values shown in Table 5, can be used to select the antenna model and adjust the antenna feeder parameters.

table 5

high Lower inclination gain transmit power beamforming MIMO 35m 10 degrees 12dbi 35dbm Yes Yes

Based on the same inventive concept, an embodiment of the present invention also provides an antenna feed parameter optimization device for a common antenna antenna feed system, as shown in FIG. 3 , including the following structure:

The search unit 301 is used to search the TD-SCDMA collaborative optimization database sample table to obtain M groups of data, and to search the TD-LTE collaborative optimization database sample table to obtain N groups of data, wherein the M group of data and the N group of data Each set of data in includes K antenna parameter values of K antenna parameters, where each antenna parameter corresponds to one antenna parameter value, M and N are integers greater than or equal to 1, and K is greater than or equal to 1 integer;

An associating unit 302, configured to associate the M sets of data with the N sets of data, so as to obtain that the M sets of data are consistent with the K antenna feeder parameter values of the K antenna feeder parameters in the N sets of data at least one set of linked datasets;

The determining unit 303 is configured to determine a set of optimal antenna feed parameter values that are compatible with the preset optimization requirement from the at least one set of associated data sets based on a preset optimization requirement, so that based on the optimal antenna Adjust the feeder parameter value of the common antenna feeder system.

Preferably, each set of data in the TD-SCDMA collaborative optimization database sample table and the TD-LTE collaborative optimization database sample table also includes performance corresponding to the K antenna feeder parameter values of the K antenna feeder parameters Indicator parameter value.

Preferably, the search unit 301 specifically includes:

The first threshold determination module is used to determine the first performance threshold of the TD-SCDMA cell where the common antenna feeder system is located;

The first search module searches the TD-SCDMA cooperative optimization database sample table for M sets of data satisfying the first performance threshold.

Preferably, the search unit 301 specifically includes:

The second threshold determination module is used to determine the second performance threshold of the TD-LTE cell where the common antenna feeder system is located;

The second search module is configured to search for N sets of data satisfying the second performance threshold in the TD-LTE collaborative optimization database sample table.

Preferably, the TD-SCDMA collaborative optimization database sample table is specifically: based on the determined corresponding relationship between the network characteristic parameters of the TD-SCDMA cell where the common-antenna antenna feeder system is located, antenna feeder parameters, and TD-SCDMA performance index parameters The established basic database table sample.

Preferably, the TD-LTE collaborative optimization database sample table is specifically: based on the determined network characteristic parameters of the TD-LTE cell where the common antenna feeder system is located, the corresponding relationship between the antenna feeder parameters and the TD-LTE performance index parameters The established basic database table sample.

Preferably, the determining unit 303 includes:

Calculating each set of associated data in the at least one set of associated data sets according to the collaborative optimization algorithm corresponding to the preset optimization requirement to obtain a corresponding collaborative optimization coefficient value;

A group of antenna feeder parameter values in a group of associated data with an optimal collaborative optimization coefficient value is selected as the optimal antenna feeder parameter value.

Preferably, according to the following formula:

M=a×f(R,r)+b×g(RSCP,s)+c×h(SINR,i) determine the corresponding collaborative optimization coefficient value;

Among them, M is the cooperative optimization coefficient value, a, b, and c are the weighted values of the investigation factors, R is the effective coverage radius of the cell, RSRP is the average receiving level of the cell, SINR is the average carrier-to-interference ratio of the cell, f, g, and h are the performance Index normalization function, take r, s, i as optimization challenge value,

When the preset optimization requirement is TD-SCDMA coverage priority or TD-SCDMA quality priority, RSRP, SINR, and R are respectively the performance index parameter values in the TD-SCDMA collaborative optimization database, and the preset optimization requirement is TD - When SCDMA coverage is preferred, a>b and a>c, when the preset optimization requirement is TD-SCDMA rate priority, c>b and c>a,

When the preset optimization requirement is TD-LTE quality priority or TD-LTE rate priority, RSRP, SINR, and R are respectively the performance index parameter values in the TD-SCDMA collaborative optimization database, and the preset optimization requirement is TD - when LTE coverage is preferred, a>b and a>c, when the preset optimization requirement is TD-LTE rate priority, c>b and c>a.

Preferably, the device also includes:

An updating unit, configured to update the TD-SCDMA collaborative optimization database sample based on the current antenna feed parameters of the common antenna feed system after the common antenna feed system is adjusted based on the optimal antenna feed parameter value. Table or TD-LTE collaborative optimization database sample table.

The various changes and specific examples in the method for optimizing the antenna parameters of the common-antenna antenna-feeder system in the foregoing embodiments are also applicable to the antenna-feeder parameter optimization device of the common-antenna antenna-feeder system in this embodiment. The detailed description of the antenna feeder parameter optimization method of the feeder system, those skilled in the art can clearly know the implementation method of the antenna feeder parameter optimization device of the common antenna antenna feeder system in this embodiment, so for the sake of brevity of the description, no more details are given here. .

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. The present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow diagram procedure or procedures and/or block diagram procedures or blocks.

As defined herein, computer readable media excludes non-persistent computer readable media (transitory media), such as modulated data signals and carrier waves.

While preferred embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (18)

1. a kind of antenna-feed parameter optimization method of shared antenna antenna-feeder system, which is characterized in that including：

TD-SCDMA collaborations optimization database sample table is searched to obtain M group data, and searches TD-LTE collaboration optimization databases Sample table is to obtain N group data, wherein each group of data in the M groups data and the N groups data include K kind antenna-feed parameters K antenna-feed parameter value, wherein each antenna-feed parameter corresponds to an antenna-feed parameter value, and M, N are integer more than or equal to 1, and K is Integer more than or equal to 1；

The M groups data and the N groups data are associated with, to obtain the M groups data and the K kinds day in the N groups data The consistent at least one set of associated data set of K antenna-feed parameter value of feedforward parameter；

It determines to be adapted to the default optimization demand from least one set of associated data concentration based on a default optimization demand One group of optimal antenna-feed parameter value, so as to adjust the shared antenna antenna-feeder system based on the optimal antenna-feed parameter value.

2. the method as described in claim 1, which is characterized in that the TD-SCDMA collaborations optimization database sample table and TD-LTE Each group of data in collaboration optimization database sample table further include the K antenna-feed parameter value pair with the K kinds antenna-feed parameter The performance indicator parameter value answered.

3. method as claimed in claim 2, which is characterized in that the lookup TD-SCDMA collaborations optimization database sample table is to obtain M group data are obtained, including：

The first performance threshold value of TD-SCDMA cells where determining the shared antenna antenna-feeder system；

The M group data for meeting the first performance threshold value are searched in the TD-SCDMA cooperates with optimization database sample table.

4. method as claimed in claim 2, which is characterized in that the lookup TD-LTE collaborations optimization database sample table is to obtain N group data, including：

Second performance threshold value of TD-LTE cells where determining the shared antenna antenna-feeder system；

The N group data for meeting second performance threshold value are searched in the TD-LTE cooperates with optimization database sample table.

5. the method as described in any claim in claim 1-4, which is characterized in that the TD-SCDMA collaborations optimization database Sample table is specially：Based on the network characterization parameter of TD-SCDMA cells where the determining shared antenna antenna-feeder system, antenna feeder ginseng Number and the correspondence of TD-SCDMA performance indicator parameters and the basic database table sample established.

6. the method as described in any claim in claim 1-4, which is characterized in that the TD-LTE collaborations optimization database sample Table is specially:Based on the network characterization parameter of TD-LTE cells where the determining shared antenna antenna-feeder system, antenna-feed parameter with And TD-LTE performance indicator parameters correspondence and the basic database table sample established.

7. the method as described in any claim in claim 1-4, which is characterized in that the default optimization demand that is based on is from institute It states at least one set of associated data and concentrates one group of optimal antenna-feed parameter value for determining to be adapted to the default optimization demand, including：

Every group is concentrated at least one set of associated data respectively according to the corresponding Cooperative Optimization Algorithm of the default optimization demand Associated data is calculated, and corresponding collaboration optimized coefficients value is obtained；

One group of antenna-feed parameter value in one group of associated data for selecting collaboration optimized coefficients value optimal is the optimal antenna-feed parameter Value.

8. the method for claim 7, which is characterized in that according to following formula：

M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i) determines corresponding collaboration optimized coefficients value；

Wherein, M is collaboration optimized coefficients value, and a, b, c are to investigate Factors Weighting value, and R is the effective covering radius of cell, and RSRP is small Area's average reception level, SINR are that cell be averaged carrier/interface ratio, and f, g, h are performance indicator normalized function, and it is to optimize to choose to take r, s, i War value,

When the default optimization demand is that TD-SCDMA coverings are preferential or TD-SCDMA mass is preferential, RSRP, SINR, R difference The performance indicator parameter value in optimization database is cooperateed with for TD-SCDMA, is that TD-SCDMA coverings are excellent in the default optimization demand When first, a>B and a>C, when the default optimization demand is that TD-SCDMA rates are preferential, c>B and c>A,

When the default optimization demand is that TD-LTE mass is preferential or TD-LTE rates are preferential, RSRP, SINR, R are respectively TD- Performance indicator parameter value in SCDMA collaboration optimization databases, when the default optimization demand is that TD-LTE coverings are preferential, a> B and a>C, when the default optimization demand is that TD-LTE rates are preferential, c>B and c>a.

9. the method as described in claim 1, which is characterized in that in the default optimization demand that is based on from at least one set After associated data concentrates one group of optimal antenna-feed parameter value for determining to be adapted to the default optimization demand, the method is also wrapped It includes：

After being adjusted to the shared antenna antenna-feeder system based on the optimal antenna-feed parameter value, it is based on the shared antenna day The current antenna-feed parameter of feedback system updates the TD-SCDMA collaborations optimization database sample table or TD-LTE collaboration optimization databases Sample table.

10. a kind of antenna-feed parameter of shared antenna antenna-feeder system optimizes device, which is characterized in that including：

Searching unit, for searching TD-SCDMA collaborations optimization database sample table to obtain M group data, and lookup TD-LTE associations With optimization database sample table to obtain N group data, wherein each group of data in the M groups data and the N groups data include K antenna-feed parameter value of K kind antenna-feed parameters, wherein each antenna-feed parameter corresponds to an antenna-feed parameter value, and M, N are more than or equal to 1 Integer, K is integer more than or equal to 1；

Associative cell, for being associated with the M groups data and the N groups data, to obtain the M groups data and the N groups data In the K kinds antenna-feed parameter the consistent at least one set of associated data set of K antenna-feed parameter value；

Determination unit is determined to preset with described for being based on a default optimization demand from least one set of associated data concentration One group of optimal antenna-feed parameter value of optimization demand adaptation, so as to adjust the shared antenna antenna feeder based on the optimal antenna-feed parameter value System.

11. device as claimed in claim 10, which is characterized in that the TD-SCDMA collaborations optimization database sample table and TD- Each group of data in LTE collaboration optimization database sample tables further include the K antenna-feed parameter value with the K kinds antenna-feed parameter Corresponding performance indicator parameter value.

12. device as claimed in claim 11, which is characterized in that the searching unit specifically includes：

First thresholding determining module, the first performance thresholding for TD-SCDMA cells where determining the shared antenna antenna-feeder system Value；

First searching module searches in the TD-SCDMA cooperates with optimization database sample table and meets the first performance threshold value M group data.

13. device as claimed in claim 11, which is characterized in that the searching unit specifically includes：

Second thresholding determining module, the second performance threshold for TD-LTE cells where determining the shared antenna antenna-feeder system Value；

Second searching module meets second performance threshold for being searched in cooperateing with optimization database sample table in the TD-LTE The N group data of value.

14. the device as described in any claim in claim 11-13, which is characterized in that the TD-SCDMA collaborations optimization number It is specially according to library sample table：Based on the network characterization parameter of TD-SCDMA cells where the determining shared antenna antenna-feeder system, day Feedforward parameter and the correspondence of TD-SCDMA performance indicator parameters and the basic database table sample established.

15. the device as described in any claim in claim 11-13, which is characterized in that the TD-LTE collaborations optimization data Library sample table is specially:Based on the network characterization parameter of TD-LTE cells where the determining shared antenna antenna-feeder system, antenna feeder ginseng Number and the correspondence of TD-LTE performance indicator parameters and the basic database table sample established.

16. the device as described in any claim in claim 11-13, which is characterized in that the determination unit, including：

Every group is concentrated at least one set of associated data respectively according to the corresponding Cooperative Optimization Algorithm of the default optimization demand Associated data is calculated, and corresponding collaboration optimized coefficients value is obtained；

One group of antenna-feed parameter value in one group of associated data for selecting collaboration optimized coefficients value optimal is the optimal antenna-feed parameter Value.

17. device as claimed in claim 16, which is characterized in that according to following formula：

M=a × f (R, r)+b × g (RSCP, s)+c × h (SINR, i) determines corresponding collaboration optimized coefficients value；

Wherein, M is collaboration optimized coefficients value, and a, b, c are to investigate Factors Weighting value, and R is the effective covering radius of cell, and RSRP is small Area's average reception level, SINR are that cell be averaged carrier/interface ratio, and f, g, h are performance indicator normalized function, and it is to optimize to choose to take r, s, i War value,

When the default optimization demand is that TD-SCDMA coverings are preferential or TD-SCDMA mass is preferential, RSRP, SINR, R difference The performance indicator parameter value in optimization database is cooperateed with for TD-SCDMA, is that TD-SCDMA coverings are excellent in the default optimization demand When first, a>B and a>C, when the default optimization demand is that TD-SCDMA rates are preferential, c>B and c>A,

When the default optimization demand is that TD-LTE mass is preferential or TD-LTE rates are preferential, RSRP, SINR, R are respectively TD- Performance indicator parameter value in SCDMA collaboration optimization databases, when the default optimization demand is that TD-LTE coverings are preferential, a> B and a>C, when the default optimization demand is that TD-LTE rates are preferential, c>B and c>a.

18. device as claimed in claim 10, which is characterized in that described device further includes：

Updating unit, for after being adjusted to the shared antenna antenna-feeder system based on the optimal antenna-feed parameter value, base The TD-SCDMA collaborations optimization database sample table or TD-LTE are updated in the current antenna-feed parameter of the shared antenna antenna-feeder system Collaboration optimization database sample table.