CN110677856B - Planning method and device for SSB configuration scheme - Google Patents
Planning method and device for SSB configuration scheme Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a device for planning an SSB configuration scheme, relates to the field of communication, and can be used for planning the SSB configuration scheme by using measurement indexes of an area to be planned, so that the planning complexity of the SSB configuration scheme is reduced. The method comprises the following steps: calculating and generating a native interference matrix of a cell in the region to be planned according to SS-RSRP of the region to be planned; calculating an inter-cell interference coefficient matrix of the region to be planned according to SSB configuration options, parameters of the SSB configuration options and antenna configuration parameters of the cell in the region to be planned; acquiring a weight coefficient matrix of a cell in a region to be planned; calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix; and when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned. The embodiment of the application is applied to an SSB configuration scheme for planning an NR system.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a planning method and a planning device for an SSB configuration scheme.
Background
In the planning and construction of a New Radio (NR) network of a fifth generation mobile communication technology (5G), configuration of parameters of each wireless system is an important factor affecting system performance and system index, and Synchronization Signal (SS)/broadcast channel (PBCH) blocks (SSB) in the NR system carry synchronization information and system information necessary for terminal access, including Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSs), and PBCH. Therefore, planning of the configuration scheme of the SSB in the NR system is proposed.
The SSB in the NR system has a flexible time-frequency resource configuration, where the SSB includes 240 consecutive subcarriers (numbers 0-239), i.e., 20 Resource Blocks (RBs), in the frequency domain; there may be multiple SSBs in one SSB period in the time domain, and in 3GPP TS 38.213, there are 5 cases in total for the time domain position of the SSB; on the beams, NR introduces a dynamic narrow beam technique for the broadcast channel, and different SSBs within one SSB period can use different beams. Therefore, the configuration scheme of the SSB in the NR system includes configuration in three dimensions of time domain, frequency domain, and beam. The flexibility of the SSB configuration scheme will bring many possibilities to the network and also complexity in planning.
Disclosure of Invention
Embodiments of the present invention provide a method and an apparatus for planning an SSB configuration scheme, which can use measurement indexes of an SSB of an area to be planned for planning the SSB configuration scheme, and reduce complexity of planning the SSB configuration scheme.
In a first aspect, a method for planning an SSB configuration scheme is provided, which includes the following steps: acquiring the reference signal received power SS-RSRP of a synchronous signal of a region to be planned; calculating and generating a native interference matrix of a cell in the region to be planned according to SS-RSRP of the region to be planned, wherein the region to be planned comprises at least two cells; acquiring a synchronous signal block SSB configuration option, parameters of the SSB configuration option and antenna configuration parameters of a cell in a region to be planned; calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option of the cell in the region to be planned, the parameters of the SSB configuration option and the antenna configuration parameters; calculating an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix; acquiring a weight coefficient matrix of a cell in a region to be planned, wherein the weight coefficient matrix represents the importance degree of the cell in the region to be planned in an NR system; calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix; and when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned.
In the scheme, the reference signal received power SS-RSRP of the synchronous signal of the area to be planned is obtained; calculating and generating a native interference matrix of a cell in the region to be planned according to SS-RSRP of the region to be planned; acquiring a synchronous signal block SSB configuration option, parameters of the SSB configuration option and antenna configuration parameters of a cell in a region to be planned; calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option of the cell in the region to be planned, the parameters of the SSB configuration option and the antenna configuration parameters; calculating an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix; acquiring a weight coefficient matrix of a cell in a region to be planned; calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix; and when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned. Therefore, firstly, the native interference matrix is generated according to the measurement index SS-RSRP of the region to be planned, the measurement index SS-RSRP of the region to be planned can be used for planning the SSB configuration scheme, and the planning rationality of the SSB configuration scheme of the region to be planned is improved. Secondly, according to SSB configuration options of the cells in the region to be planned, parameters of the SSB configuration options and antenna configuration parameters, an SSB configuration option interference coefficient matrix is calculated, and an inter-cell interference coefficient matrix is further calculated; the SSBs of the adjacent cells in the area to be planned are staggered in time domain, frequency domain and beam direction, and the planning rationality of the SSB configuration scheme of the area to be planned is further improved. And thirdly, calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix, and when the system evaluation index cost is the minimum value, taking the SSB configuration option corresponding to each cell as an SSB configuration scheme of the cell in the region to be planned, thereby reducing the planning complexity of the SSB configuration scheme.
In a second aspect, a planning apparatus for an SSB configuration scheme is provided, which includes: the acquisition module is used for acquiring the reference signal received power SS-RSRP of the synchronous signal of the area to be planned; the calculation module is used for calculating and generating a native interference matrix of a cell in the region to be planned according to the SS-RSRP of the region to be planned acquired by the acquisition module, wherein the region to be planned comprises at least two cells; the acquisition module is also used for acquiring the SSB configuration options of the cells in the area to be planned, the parameters of the SSB configuration options and the antenna configuration parameters; the calculation module is further used for calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option of the cell in the region to be planned, the parameters of the SSB configuration option and the antenna configuration parameters, which are acquired by the acquisition module; the calculation module is also used for calculating an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix; the acquiring module is further used for acquiring a weight coefficient matrix of the cell in the area to be planned, wherein the weight coefficient matrix represents the importance degree of the cell in the area to be planned in the NR system; the calculation module is also used for calculating the system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix; and the processing module is used for taking the SSB configuration option corresponding to each cell as the SSB configuration scheme of the cell in the region to be planned when the system evaluation index cost calculated by the calculating module is the minimum value.
In a third aspect, a planning apparatus for an SSB configuration scheme is provided, which includes a communication interface, a processor, a memory, and a bus; the memory is used for storing computer execution instructions, the processor is connected with the memory through a bus, and when the planning device of the SSB configuration scheme runs, the processor executes the computer execution instructions stored in the memory, so that the planning device of the SSB configuration scheme executes the planning method of the SSB configuration scheme as described in the first aspect.
In a fourth aspect, a computer storage medium is provided, comprising instructions which, when executed on a computer, cause the computer to perform a planning method as described above for the SSB configuration scheme.
In a fifth aspect, a computer program product is provided, which comprises instruction code for performing a planning method of an SSB configuration scheme as described above.
It can be understood that the planning apparatus, the computer storage medium, or the computer program product of any of the SSB configuration schemes provided above are all configured to execute the method corresponding to the first aspect provided above, and therefore, the beneficial effects that can be achieved by the planning apparatus, the computer storage medium, or the computer program product refer to the method of the first aspect above and the beneficial effects of the corresponding schemes in the following detailed description, which are not repeated herein.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic time-frequency resource diagram of an SSB according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a planning method of an SSB configuration scheme according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a method for generating a cell-originated interference matrix in an area to be planned according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a planning apparatus for SSB configuration scheme according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a planning apparatus for SSB configuration according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The SSB includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a broadcast channel PBCH. The application provides a time-frequency resource schematic diagram of an SSB, see fig. 1, where an abscissa represents a number of Orthogonal Frequency Division Multiplexing (OFDM) symbols (OFDM symbol number) of a time domain, and an ordinate represents a number of subcarriers (subcarrier number) of a frequency domain, where a PSS occupies 127 th subcarriers in total in an OFDM position where a symbol is 0; PBCH occupies 240 subcarriers in 0-239 at the OFDM position with 1 symbol, occupies 96 subcarriers in 0-47 and 192-239 at the OFDM position with 2 symbol, and occupies 240 subcarriers in 0-239 at the OFDM position with 3 symbol; the SSS occupies 127 th sub-carrier in the OFDM position of symbol 2, 56-182. Therefore, the SSB adopts flexible resource allocation on time-frequency resources, and includes 240 continuous subcarriers on the frequency domain, occupying 20 total subcarriers; there may be multiple SSBs in one SSB period in the time domain, and in 3GPP TS 38.213, there are 5 cases in total for the time domain position of the SSB; on the beams, NR introduces a dynamic narrow beam technique for the broadcast channel, and different SSBs within one SSB period can use different beams. Therefore, the configuration scheme of the SSB in the NR system includes configuration in three dimensions of time domain, frequency domain, and beam. The flexibility of the SSB configuration scheme will bring many possibilities to the network and also complexity in planning.
In order to solve the above problem, an embodiment of the present application provides a method for planning an SSB configuration scheme, which is shown in fig. 2 and specifically includes the following steps:
201. and acquiring the SS-RSRP (synchronization signal reference receiving power) of the region to be planned, and calculating and generating the native interference matrix of the cell in the region to be planned according to the SS-RSRP of the region to be planned.
First, in the NR planning phase, since no actual network provides measurement data, the native interference matrix can be determined by a static simulation method. And configuring cells to be planned according to the planned station address in a system simulation platform, wherein the area to be planned comprises at least two cells. Therefore, an embodiment of the present application further provides a method for generating a cell-originated interference matrix in an area to be planned, which is shown in fig. 3 and specifically includes the following steps:
and S1, rasterizing the area to be planned to obtain at least one grid.
Specifically, when rasterizing the area to be planned, the grid size is preconfigured, for example, the grid size may be a default value, pre-stored, or obtained by rewriting by a background manager, and for example, the grid size is preconfigured as a grid with a default value of 5m pitch.
S2, acquiring the maximum SS-RSRP of the first grid center position point, and taking the cell corresponding to the beam of the maximum SS-RSRP as the home cell of the first grid.
Specifically, the system simulation platform evaluates the maximum SS-RSRP of the first grid center position point, and uses a cell corresponding to the beam of the maximum SS-RSRP as a home cell of the first grid, where the first grid is any one of at least one grid, for example, the system simulation platform evaluates that there are 3 SS-RSRP parameters, specifically, SS-RSRP, in the first grid aa＞SS-RSRPb＞SS-RSRPcThen SS-RSRPaThe cell corresponding to the beam of (a) is used as the home cell of the first grid a.
And S3, acquiring the target grid number of the target cell which is the home cell in the region to be planned.
S4, acquiring the number of interference grids of the adjacent cells causing interference to the target cell in the area to be planned.
First, when the maximum SS-RSRP in the target grid in the target cell is greater than the target cell service quality threshold and there is an interfering SS-RSRP whose difference from the maximum SS-RSRP is greater than a predetermined threshold in the target grid, it is determined that a cell corresponding to a beam of the interfering SS-RSRP is an adjacent cell, where the target cell service quality threshold and the predetermined threshold are preconfigured, for example, the target cell service quality threshold is preconfigured to-110 dBm, and the predetermined threshold, that is, the overlapping coverage threshold difference between the target cell and the adjacent cell is preconfigured to-6 dB.
For example, the system simulation platform evaluates that there is SS-RSRP in the target grid b in the target cell ia、SS-RSRPb、SS-RSRPc、SS-RSRPdWherein, the service quality threshold of the target cell i is SS-RSRPTHThe predetermined threshold is SS-RSRPdeltaAnd SS-RSRPa、SS-RSRPb、SS-RSRPc、SS-RSRPdThe following conditions are satisfied: (1) SS-RSRPa＞SS-RSRPb＞SS-RSRPc＞SS-RSRPd；(2)SS-RSRPa＞SS-RSRPTH；(3)(SS-RSRPb)-(SS-RSRPa)＞SS-RSRPdeltaOr (SS-RSRP)a)-(SS-RSRPb)＜|SS-RSRPdelta|；(4)(SS-RSRPc)-(SS-RSRPa)＞SS-RSRPdeltaOr (SS-RSRP)a)-(SS-RSRPc)＜|SS-RSRPdelta|；(5)(SS-RSRPd)-(SS-RSRPa)＜SS-RSRPdeltaOr (SS-RSRP)a)-(SS-RSRPd)＞|SS-RSRPdelta|。
Determine SS-RSRP in target grid bbAnd SS-RSRPcTo interfere with SS-RSRP, SS-RSRPbThe cell corresponding to the beam is a first adjacent cell, SS-RSRPcThe cell corresponding to the beam of (a) is a second neighbor cell.
And secondly, acquiring the number of interference grids with interference SS-RSRP in the target cell.
And S5, calculating the interference of the adjacent cell to the target cell according to the target grid number and the interference grid number.
In particular, according to the formula
Calculating the interference of the adjacent cell to the target cell, wherein IjiRepresenting the interference of the neighbor cell j to the target cell i, GiiRepresenting the number of interference grids, GiThe number of the target grids is represented, i is larger than or equal to 1, j is larger than or equal to 1, wherein i and j represent the number of the cells in the area to be planned, for example, when the area to be planned comprises N cells, i is larger than or equal to 1, j is larger than or equal to 1, and i belongs to N and j belongs to N.
And S6, generating a native interference matrix of the cell in the region to be planned according to the interference of the adjacent cell to the target cell.
Specifically, the interference among all the cells in the area to be planned is calculated according to the steps S1-S5, and a native interference matrix of the cells in the area to be planned is generated.
For example, the native interference matrix of a cell in the region to be planned is I, N represents the number of cells in the region to be planned, IjiRepresenting the interference of the neighbor cell j to the target cell iI belongs to N, j belongs to N, and then the native interference matrix of the cell in the region to be planned
202. The method comprises the steps of obtaining a synchronous signal block SSB configuration option, parameters of the SSB configuration option and antenna configuration parameters of a cell in a region to be planned, calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option, the parameters of the SSB configuration option and the antenna configuration parameters of the cell in the region to be planned, and calculating an inter-cell interference coefficient matrix of the region to be planned according to the SSB configuration option interference coefficient matrix.
Firstly, SSB configuration options selectable by each cell in a region to be planned and parameters of each SSB configuration option are determined, wherein the parameters of the SSB configuration options comprise a forming horizontal beam width of an SSB beam, a maximum forming gain of the SSB beam, time-frequency resources of the SSB beam and an ID of the SSB beam. For example, the SSB configuration options selectable by the cell i in the area to be planned have S groups, each SSB configuration option has M SSB beams, and table 1 below gives the SSB configuration options of a possible cell i and parameters of the SSB configuration options:
TABLE 1
And secondly, acquiring antenna configuration parameters according to the actual antenna configuration, wherein the antenna configuration parameters comprise the average shaped horizontal beam width of the downlink single-stream service and the average shaped gain of the downlink single-stream service.
Thirdly, according to the formula
Calculating an SSB configuration option interference coefficient matrix, wherein,
r represents an SSB configuration option interference coefficient matrix, R0Representing an initial SSB configuration option interference coefficient matrix;
representing interference of the second SSB configuration option n with the first SSB configuration option m,
representing the interference of a second SSB configuration option n on a kth SSB wave beam in a first SSB configuration option M, wherein M represents the number of SS wave beams in the first SSB configuration option M, M is more than or equal to 1, M represents an mth SSB configuration option of any cell in a region to be planned, M is more than or equal to 1, n represents an nth SSB configuration option of any cell in the region to be planned, n is more than or equal to 1, for example, M and n are different SSB configuration options of the same cell in the region to be planned, and when S SSB configuration options exist in the cell, S is more than or equal to M and more than 1, and S is more than or equal to n and more than 1; thetamkRepresents the shaped horizontal beamwidth, θ, of the kth SSB beam in the first SSB configuration option mnlRepresents the formed horizontal beamwidth, GA, of the l-th SSB beam in the second SSB configuration option nnlRepresents the maximum forming gain, theta, of the l-th SSB beam in the second SSB configuration option nmrThe shaped horizontal beamwidth of the r-th SSB beam representing the first SSB configuration option m, m ∈ S, n ∈ S, θSMean forming horizontal beam width, GA, representing downlink single-stream serviceSThe average forming gain of the downlink single-stream service is represented, eta represents the average load of a downlink service channel, eta is greater than or equal to 0 and less than or equal to 1, and the eta is 0.75 for example.
Finally, according to formula Pij＝RmnCalculating elements in the inter-cell interference coefficient matrix to obtain the inter-cell interference coefficient matrix, wherein PijRepresenting the interference coefficient between a first cell i and a second cell j, i is more than or equal to 1, j is more than or equal to 1, wherein i and j represent the number of the cells in the area to be planned, for example, when the area to be planned comprises N cells, i is more than or equal to 1, j is more than or equal to 1, and i belongs to N, j belongs to N, RmnIndicating a first cell i configured as the mth SSB configuration option and a second cell configured as the nth SSB configuration optionThe interference coefficient between j is m is more than or equal to 1, n is more than or equal to 1, for example, if the first cell i in the region to be planned has S SSB configuration options, S is more than or equal to m is more than or equal to 1, and if the second cell j in the region to be planned has S SSB configuration options, S is more than or equal to n is more than or equal to 1.
Further, the interference coefficients of all cells in the region to be planned are obtained, and an interference coefficient matrix is generated. For example, the interference coefficient matrix among the cells in the region to be planned is P, N represents the number of the cells in the region to be planned, PijRepresenting the interference coefficient of a first cell i to a second cell j, i belongs to N, j belongs to N, and then representing the interference coefficient matrix between the cells in the region to be planned
203. And acquiring a weight coefficient matrix of a cell in the region to be planned.
The weight coefficient matrix represents the importance degree of a cell in a to-be-planned area in an NR system, elements in the weight coefficient matrix are weight coefficients, and the value range is as follows: the weight coefficient is more than or equal to 0 and less than or equal to 1, the default value is 1, corresponding adjustment can be carried out according to the actual network condition, and the weight coefficient of the unimportant cell is properly reduced. For example, the weight coefficient matrix of the cells in the region to be planned is W, N represents the number of the cells in the region to be planned, WiiRepresenting the weight coefficient of the cell i, then the weight coefficient matrix of the cell in the region to be planned
204. And calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix.
First, a system cost matrix is calculated according to a native interference matrix, an inter-cell interference coefficient matrix, a weight coefficient matrix, and a formula V ═ P × I × W, where V denotes the system cost matrix, P denotes the inter-cell interference coefficient matrix, I denotes the native interference matrix, and W denotes the weight coefficient matrix. For example, a system cost matrix in the region to be planned
Wherein N represents the number of cells in the region to be planned,
Pmnrepresenting the interference coefficient, I, of a first cell m to a second cell nnmRepresenting the interference of the neighbor cell n to the target cell m, WmmAnd representing the weight coefficient of the cell m, i belongs to N, j belongs to N, m belongs to N, and N belongs to N.
Next, a system evaluation index cost is calculated according to the formula S ═ tr (v), where S denotes the system evaluation index cost,
Viirepresenting elements in a system cost matrix within the planned region.
205. And when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned.
Specifically, when the minimum value of the system evaluation index cost is calculated, the minimum value of the system evaluation index cost is optimized through an optimization algorithm, for example, a genetic algorithm, an ant colony algorithm, and the like.
In the scheme, the reference signal received power SS-RSRP of the synchronous signal of the area to be planned is obtained; calculating and generating a native interference matrix of a cell in the region to be planned according to SS-RSRP of the region to be planned; acquiring a synchronous signal block SSB configuration option, parameters of the SSB configuration option and antenna configuration parameters of a cell in a region to be planned; calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option of the cell in the region to be planned, the parameters of the SSB configuration option and the antenna configuration parameters; calculating an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix; acquiring a weight coefficient matrix of a cell in a region to be planned; calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix; and when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned. Therefore, firstly, the native interference matrix is generated according to the measurement index SS-RSRP of the region to be planned, the measurement index SS-RSRP of the region to be planned can be used for planning the SSB configuration scheme, and the planning rationality of the SSB configuration scheme of the region to be planned is improved. Secondly, according to SSB configuration options of the cells in the region to be planned, parameters of the SSB configuration options and antenna configuration parameters, an SSB configuration option interference coefficient matrix is calculated, and an inter-cell interference coefficient matrix is further calculated; the SSBs of the adjacent cells in the area to be planned are staggered in time domain, frequency domain and beam direction, and the planning rationality of the SSB configuration scheme of the area to be planned is further improved. And thirdly, calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix, and when the system evaluation index cost is the minimum value, taking the SSB configuration option corresponding to each cell as an SSB configuration scheme of the cell in the region to be planned, thereby reducing the planning complexity of the SSB configuration scheme.
In the embodiment of the present invention, the planning apparatus of the SSB configuration scheme may be divided into function modules according to the method embodiment, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each function module according to each function, fig. 4 shows a schematic diagram of a possible structure of the planning apparatus of the SSB configuration scheme in the above embodiment, which is used for implementing the planning method of the SSB configuration scheme. Specifically, the method comprises the following steps: an obtaining module 41, configured to obtain a synchronization signal reference signal received power SS-RSRP of a to-be-planned area; a calculating module 42, configured to calculate and generate a native interference matrix of a cell in the region to be planned according to the SS-RSRP of the region to be planned acquired by the acquiring module 41, where the region to be planned includes at least two cells; the obtaining module 41 is further configured to obtain an SSB configuration option, a parameter of the SSB configuration option, and an antenna configuration parameter of a cell in the area to be planned; the calculating module 42 is further configured to calculate an SSB configuration option interference coefficient matrix according to the SSB configuration option, the parameter of the SSB configuration option, and the antenna configuration parameter of the cell in the region to be planned, which are acquired by the acquiring module 41; the calculating module 42 is further configured to calculate an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix; the obtaining module 41 is further configured to obtain a weight coefficient matrix of the cell in the area to be planned, where the weight coefficient matrix represents an importance degree of the cell in the area to be planned in the NR system; the calculating module 42 is further configured to calculate a system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix, and the weight coefficient matrix; a processing module 43, configured to use, when the system evaluation index cost calculated by the calculating module 42 takes a minimum value, an SSB configuration option corresponding to each cell as an SSB configuration scheme for the cell in the region to be planned.
Optionally, the calculation module 42 includes an obtaining sub-module 421, configured to perform rasterization processing on the area to be planned to obtain at least one grid; the obtaining submodule 421 is further configured to obtain a maximum SS-RSRP of a first grid center position point, and use a cell corresponding to a beam of the maximum SS-RSRP as a home cell of the first grid, where the first grid is any one of the at least one grid; the obtaining submodule 421 is further configured to obtain a target grid number of a target cell that is a home cell in the area to be planned; the obtaining submodule 421 is further configured to obtain an interference grid number of an adjacent cell causing interference to the target cell in the to-be-planned area, where when a maximum SS-RSRP in a target grid in the target cell is greater than a serving quality of the target cellWhen an amount threshold exists and interference SS-RSRP exists in the target grid, wherein the difference value between the maximum SS-RSRP and the interference SS-RSRP is larger than a preset threshold value, determining a cell corresponding to a beam of the interference SS-RSRP to be an adjacent cell; a calculating submodule 422, configured to calculate the number of the target grids, the number of the interference grids, and a formula according to the number of the target grids, the number of the interference grids, and the formula acquired by the acquiring submodule 421
Calculating the interference of the neighbor cell to the target cell, wherein IjiRepresenting the interference of the adjacent cell j to the target cell i, i is more than or equal to 1, j is more than or equal to 1, GjiRepresenting the number of said interference grids, GiRepresenting the target grid number; the generating submodule 423 is configured to generate a native interference matrix of the cell in the area to be planned according to the interference, calculated by the calculating submodule 422, of the neighboring cell to the target cell.
Optionally, the calculating module 42 is specifically configured to calculate the formula
Calculating the SSB configuration option interference coefficient matrix, wherein,
r represents the SSB configuration option interference coefficient matrix, R0Representing an initial SSB configuration option interference coefficient matrix;
representing interference of the second SSB configuration option n with the first SSB configuration option m,
representing the interference generated by the second SSB configuration option n to the kth SSB wave beam in the first SSB configuration option M, wherein M represents the number of SS wave beams in the first SSB configuration option M, M is not less than 1, and M represents any cell in the region to be plannedM is more than or equal to 1, n represents the nth SSB configuration option of any cell in the area to be planned, and n is more than or equal to 1; thetamkRepresents a shaped horizontal beamwidth, θ, of a kth SSB beam in the first SSB configuration option mnlRepresents a shaped horizontal beamwidth, GA, of the 1 st SSB beam in the second SSB configuration option nnlRepresents the maximum forming gain, theta, of the 1 st SSB beam in the second SSB configuration option nmrA shaped horizontal beamwidth, θ, of an r-th SSB beam representing the first SSB configuration option mSRepresenting average shaped horizontal beam width, GA, of the downlink single-stream serviceSAnd the average forming gain of the downlink single-flow service is represented, eta represents the average load of a downlink service channel, and eta is more than or equal to 0 and less than or equal to 1.
Optionally, the calculating module 42 is specifically configured to calculate according to the formula Pij＝RmnCalculating elements in the inter-cell interference coefficient matrix to obtain an inter-cell interference coefficient matrix, wherein PijRepresenting the interference coefficient between a first cell i and a second cell j, i ≧ 1, j ≧ 1, RmnAnd representing the interference coefficient between a first cell i configured as the mth SSB configuration option and a second cell j configured as the nth SSB configuration option, wherein m is more than or equal to 1, and n is more than or equal to 1.
Optionally, the calculating module 42 is specifically configured to calculate a system evaluation index cost according to a formula S ═ tr (V), (V ═ P × I × W, S denotes the system evaluation index cost, V denotes a system cost matrix, P denotes the inter-cell interference coefficient matrix, I denotes the native interference matrix, and W denotes the weight coefficient matrix.
In the case of integrated modules, the planning device of the SSB configuration scheme comprises: the device comprises a storage unit, a processing unit and an interface unit. The processing unit is used for controlling and managing the actions of the planning device of the SSB configuration scheme. And the interface unit is responsible for information interaction between the planning device of the SSB configuration scheme and other equipment. And the storage unit is responsible for storing the program codes and data of the planning device of the SSB configuration scheme.
For example, the processing unit is a processor, the storage unit is a memory, and the interface unit is a communication interface. The planning apparatus for SSB configuration scheme is shown in fig. 5, and includes a communication interface 501, a processor 502, a memory 503, and a bus 504, where the communication interface 501 and the processor 502 are connected to the memory 503 through the bus 504.
The processor 502 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an Application-Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to control the execution of programs in accordance with the teachings of the present disclosure.
The Memory 502 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.
The memory 503 is used for storing application program codes for executing the scheme of the application, and the processor 502 controls the execution. The communication interface 501 is used for information interaction with other devices, for example, information interaction between a planning apparatus supporting an SSB configuration scheme and other devices, for example, data acquisition from other devices or data transmission to other devices. The processor 502 is configured to execute application program code stored in the memory 503 to implement the methods described in the embodiments of the present application.
Further, a computing storage medium (or media) is also provided, comprising instructions that when executed perform the planning method operations of the SSB configuration scheme in the above embodiments. Additionally, a computer program product is also provided, comprising the above-described computing storage medium (or media).
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and the function thereof is not described herein again.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art would appreciate that the various illustrative modules, elements, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A method for planning SSB configuration scheme is characterized in that,
acquiring the reference signal received power SS-RSRP of a synchronous signal of a region to be planned;
calculating and generating a native interference matrix of cells in the region to be planned according to SS-RSRP of the region to be planned, wherein the region to be planned comprises at least two cells;
acquiring a synchronous signal block SSB configuration option, parameters of the SSB configuration option and antenna configuration parameters of a cell in the region to be planned; the parameters of the SSB configuration options comprise the forming horizontal beam width of the SSB beam, the maximum forming gain of the SSB beam and the time-frequency resource of the SSB beam; the antenna configuration parameters comprise the average shaped horizontal beam width of the downlink single-stream service and the average shaped gain of the downlink single-stream service;
calculating an SSB configuration option interference coefficient matrix according to the SSB configuration option of the cell in the region to be planned, the parameters of the SSB configuration option and the antenna configuration parameters;
calculating an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix;
acquiring a weight coefficient matrix of a cell in the region to be planned, wherein the weight coefficient matrix represents the importance degree of the cell in the region to be planned in an NR system;
calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix;
when the system evaluation index cost is the minimum value, the SSB configuration option corresponding to each cell is used as the SSB configuration scheme of the cell in the region to be planned;
the generating of the native interference matrix of the cell in the area to be planned according to the SS-RSRP calculation of the area to be planned comprises:
rasterizing the area to be planned to obtain at least one grid;
acquiring the maximum SS-RSRP of a first grid center position point, and taking a cell corresponding to a beam of the maximum SS-RSRP as a home cell of the first grid, wherein the first grid is any one of the at least one grid;
acquiring the number of target grids taking the home cell in the region to be planned as a target cell;
acquiring the number of interference grids of adjacent cells causing interference to a target cell in the region to be planned, wherein when the maximum SS-RSRP in a target grid in the target cell is greater than the target cell service quality threshold and interference SS-RSRP with the difference value greater than a preset threshold exists in the target grid, a cell corresponding to a beam of the interference SS-RSRP is determined to be an adjacent cell;
according to the target grid number, the interference grid number and a formula
Calculating the interference of the neighbor cell to the target cell, wherein IjiRepresenting the interference of the adjacent cell j to the target cell i, i is more than or equal to 1, j is more than or equal to 1, GjiRepresenting the number of said interference grids, GiRepresenting the target grid number;
generating a native interference matrix of the cell in the region to be planned according to the interference of the adjacent cell to the target cell;
the calculating an interference coefficient matrix of an SSB configuration option according to the SSB configuration option, the parameter of the SSB configuration option, and the antenna configuration parameter of the cell in the region to be planned includes:
according to the formula
Calculating the SSB configuration option interference coefficient matrix, wherein,
r represents the SSB configuration option interference coefficient matrix, R0Representing an initial SSB configuration option interference coefficient matrix;
representing interference of the second SSB configuration option n with the first SSB configuration option m,
representing interference generated by the second SSB configuration option n to the kth SSB wave beam in the first SSB configuration option M, wherein M represents the number of SS wave beams in the first SSB configuration option M, M is not less than 1, M represents the mth SSB configuration option of any cell in the area to be planned, M is not less than 1, n represents the nth SSB configuration option of any cell in the area to be planned, and n is not less than 1; thetamkRepresents a shaped horizontal beamwidth, θ, of a kth SSB beam in the first SSB configuration option mnlRepresents a shaped horizontal beamwidth, GA, of the l-th SSB beam in the second SSB configuration option nnlRepresents the maximum forming gain, theta, of the l-th SSB beam in the second SSB configuration option nmrA shaped horizontal beamwidth, θ, of an r-th SSB beam representing the first SSB configuration option mSRepresenting average shaped horizontal beam width, GA, of the downlink single-stream serviceSRepresenting the average forming gain of the downlink single-flow service, wherein eta represents the average load of a downlink service channel, and eta is more than or equal to 0 and less than or equal to 1;
the calculating the inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix comprises:
according to formula Pij＝RmnCalculating elements in the inter-cell interference coefficient matrix to obtain an inter-cell interference coefficient matrix, wherein PijRepresenting the interference coefficient between a first cell i and a second cell j, i ≧ 1, j ≧ 1, RmnRepresenting the interference coefficient between a first cell i configured as an mth SSB configuration option and a second cell j configured as an nth SSB configuration option, wherein m is more than or equal to 1, and n is more than or equal to 1;
the acquiring of the weight coefficient matrix of the cell in the region to be planned includes:
according to the formula
Calculating a weight coefficient matrix of the cell in the region to be planned; wherein W represents a weight coefficient matrix of the cells in the region to be planned, N represents the number of the cells in the region to be planned, and W representsiiRepresenting the weight coefficient of a cell i in the region to be planned;
the calculating system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix and the weight coefficient matrix comprises:
according to the formula
Calculating a system cost matrix in the region to be planned; wherein V represents a system cost matrix in the region to be planned, N represents the number of cells in the region to be planned,
Pmnrepresenting the interference coefficient, I, of a first cell m to a second cell nnmRepresenting the interference of the neighbor cell n to the target cell m, WmmRepresenting the weight coefficient of the cell m, i belongs to N, j belongs to N, m belongs to N, and N belongs to N;
calculating the system evaluation index cost according to the formula S-tr (V), wherein S represents the system evaluation index cost,
Viirepresenting elements in a system cost matrix within the planned region.
2. A planning device for SSB configuration scheme is characterized in that,
the acquisition module is used for acquiring the reference signal received power SS-RSRP of the synchronous signal of the area to be planned;
a calculating module, configured to calculate and generate a native interference matrix of a cell in the region to be planned according to the SS-RSRP of the region to be planned acquired by the acquiring module, where the region to be planned includes at least two cells;
the acquisition module is further configured to acquire a synchronization signal block SSB configuration option, a parameter of the SSB configuration option, and an antenna configuration parameter of the cell in the area to be planned;
the calculation module is further configured to calculate an SSB configuration option interference coefficient matrix according to the SSB configuration option, the parameter of the SSB configuration option, and the antenna configuration parameter of the cell in the region to be planned, which are acquired by the acquisition module;
the calculation module is further configured to calculate an inter-cell interference coefficient matrix of the area to be planned according to the SSB configuration option interference coefficient matrix;
the obtaining module is further configured to obtain a weight coefficient matrix of the cell in the area to be planned, where the weight coefficient matrix represents an importance degree of the cell in the area to be planned in an NR system;
the calculation module is further configured to calculate a system evaluation index cost according to the native interference matrix, the inter-cell interference coefficient matrix, and the weight coefficient matrix;
the processing module is used for taking the SSB configuration option corresponding to each cell as the SSB configuration scheme of the cell in the region to be planned when the system evaluation index cost calculated by the calculating module is the minimum;
the calculation module comprises:
the obtaining sub-module is used for carrying out rasterization processing on the area to be planned to obtain at least one grid;
the obtaining sub-module is further configured to obtain a maximum SS-RSRP of a first grid center position point, and use a cell corresponding to a beam of the maximum SS-RSRP as a home cell of the first grid, where the first grid is any one of the at least one grid;
the obtaining submodule is also used for obtaining the target grid number of the target cell which is the home cell in the area to be planned;
the obtaining sub-module is further configured to obtain the number of interference grids of neighboring cells that cause interference to a target cell in the to-be-planned region, where when a maximum SS-RSRP in a target grid in the target cell is greater than the target cell quality of service threshold and an interfering SS-RSRP whose difference from the maximum SS-RSRP is greater than a predetermined threshold exists in the target grid, a cell corresponding to a beam of the interfering SS-RSRP is determined to be a neighboring cell;
a calculation submodule for calculating the number of the target grids, the number of the interference grids and the formula according to the number of the target grids, the number of the interference grids and the formula obtained by the obtaining submodule
Calculating the interference of the neighbor cell to the target cell, wherein IjiRepresenting the interference of the adjacent cell j to the target cell i, i is more than or equal to 1, j is more than or equal to 1, GjiRepresenting the number of said interference grids, GiRepresenting the target grid number;
the generation submodule is used for generating a native interference matrix of the cell in the area to be planned according to the interference of the adjacent cell to the target cell calculated by the calculation submodule; the calculation module is specifically used for calculating according to a formula
Calculating the SSB configuration option interference coefficient matrix, wherein,
r represents the SSB configuration option interference coefficient matrix, R0Representing an initial SSB configuration option interference coefficient matrix;
representing interference of the second SSB configuration option n with the first SSB configuration option m,
representing interference generated by the second SSB configuration option n to the kth SSB wave beam in the first SSB configuration option M, wherein M represents the number of SS wave beams in the first SSB configuration option M, M is not less than 1, M represents the mth SSB configuration option of any cell in the area to be planned, M is not less than 1, n represents the nth SSB configuration option of any cell in the area to be planned, and n is not less than 1; thetamkRepresents a shaped horizontal beamwidth, θ, of a kth SSB beam in the first SSB configuration option mnlRepresents a shaped horizontal beamwidth, GA, of the l-th SSB beam in the second SSB configuration option nnlRepresents the maximum forming gain, theta, of the l-th SSB beam in the second SSB configuration option nmrA shaped horizontal beamwidth, θ, of an r-th SSB beam representing the first SSB configuration option mSMean forming horizontal beam width, GA, representing downlink single-stream serviceSRepresenting the average forming gain of the downlink single-flow service, wherein eta represents the average load of a downlink service channel, and eta is more than or equal to 0 and less than or equal to 1;
the calculation module is specifically configured to calculate the value according to formula Pij＝RmnCalculating elements in the inter-cell interference coefficient matrix to obtain an inter-cell interference coefficient matrix, wherein PijRepresenting the interference coefficient between a first cell i and a second cell j, i ≧ 1, j ≧ 1, RmnRepresenting that the interference coefficient m is more than or equal to 1 between a first cell i configured as the mth SSB configuration option and a second cell j configured as the nth SSB configuration option, wherein n is more than or equal to 1;
the calculation module is also used for calculating according to a formula
Calculating a weight coefficient matrix of the cell in the region to be planned; wherein W represents a weight coefficient matrix of the cells in the region to be planned, N represents the number of the cells in the region to be planned, and W representsiiRepresenting the weight coefficient of a cell i in the region to be planned;
the calculation module is also used for calculating according to a formula
Calculating a system cost matrix in the region to be planned; wherein V represents a system cost matrix in the region to be planned, N represents the number of cells in the region to be planned,
Pmnrepresenting the interference coefficient, I, of a first cell m to a second cell nnmRepresenting the interference of the neighbor cell n to the target cell m, WmmRepresenting the weight coefficient of the cell m, i belongs to N, j belongs to N, m belongs to N, and N belongs to N;
the calculating module is further configured to calculate the system evaluation index cost according to a formula S ═ tr (v), where S represents the system evaluation index cost,
Viirepresenting elements in a system cost matrix within the planned region.
3. A planning device for an SSB configuration scheme is characterized by comprising a communication interface, a processor, a memory and a bus; the memory is used for storing computer-executable instructions, the processor is connected with the memory through the bus, and when the planning device of the SSB configuration scheme runs, the processor executes the computer-executable instructions stored in the memory, so that the planning device of the SSB configuration scheme executes the planning method of the SSB configuration scheme as claimed in claim 1.
4. A computer storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method for planning an SSB configuration scenario of claim 1.
5. A computer-readable storage medium, storing computer program code, characterized in that when the computer program code runs on a computer, it executes the planning method of SSB configuration scheme according to claim 1.
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