CN111586700B - Method and device for adjusting signal coverage - Google Patents
Method and device for adjusting signal coverage Download PDFInfo
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- CN111586700B CN111586700B CN201910117741.0A CN201910117741A CN111586700B CN 111586700 B CN111586700 B CN 111586700B CN 201910117741 A CN201910117741 A CN 201910117741A CN 111586700 B CN111586700 B CN 111586700B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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Abstract
The embodiment of the invention provides a method and a device for adjusting a signal coverage range, wherein the method comprises the following steps: the base station measures the arrival angle AOA corresponding to each user terminal; determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; according to the target area information, searching corresponding configuration information from a database, wherein the configuration information comprises at least one of the following: antenna weight information and power information; configuring according to the configuration information to adjust the signal coverage area of the base station to a target signal coverage area; and the problem of signal coverage area overlapping is solved, and resources are saved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for adjusting a signal coverage.
Background
In a wireless communication system, each base station may establish at least one cell, and after the cell is established, a user terminal in a signal coverage area of the cell may camp on the cell, and the cell provides a wireless mobile service for the user terminal.
Generally, a base station establishes a cell according to a set of fixed antenna weights, and after the cell is established, the width of a signal coverage area (sector area) of the cell is fixed; along with the development of wireless services, wireless coverage is becoming more and more intensive, and signal coverage areas of cells are overlapped, so that cell resources are wasted.
Disclosure of Invention
The embodiment of the invention provides a method for adjusting a signal coverage range so as to save resources.
Correspondingly, the embodiment of the invention also provides a device for adjusting the signal coverage range, which is used for ensuring the realization and the application of the method.
In order to solve the above problems, the present invention discloses a method for measuring the arrival angle AOA corresponding to each user terminal by a base station; determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; according to the target area information, searching corresponding configuration information from a database, wherein the configuration information comprises at least one of the following: antenna weight information and power information; and configuring according to the configuration information so as to adjust the signal coverage area of the base station to be the target signal coverage area.
Optionally, the base station includes multiple cells, a signal coverage area corresponding to the base station includes signal coverage areas of the multiple cells, the signal coverage area is a sector area, and the target area information includes a target central angle; the determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal includes: aiming at each cell, determining the AOA corresponding to each user terminal accessed to the cell; sequencing all the AOAs to determine the maximum AOA and the minimum AOA; and calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
Optionally, the base station includes multiple cells, a signal coverage area corresponding to the base station includes signal coverage areas of the multiple cells, the signal coverage area is a sector area, and the target area information includes a target radius; the determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal includes: aiming at each cell, determining the AOA corresponding to each user terminal accessed to the cell; respectively determining the distance between each user terminal and the base station according to the AOA corresponding to each user terminal; the maximum distance is determined as the target radius.
Optionally, the database comprises: the mapping information is used for representing the mapping relation between the signal coverage area and the configuration information; the searching for the corresponding configuration information from the database according to the target area information includes: and searching mapping information based on the target area information, and determining corresponding configuration information.
Optionally, the configuring information includes antenna weight information, and the configuring according to the configuring information includes: performing beamforming according to antenna weight information, wherein the antenna weight information comprises: phase weight information and/or amplitude weight information.
Optionally, the configuring information includes power information, and the configuring according to the configuring information includes: and configuring downlink transmitting power according to the power information.
Optionally, after the base station measures the angle of arrival AOA corresponding to each user terminal, the method further includes: judging whether a preset period is reached; if the preset period is reached, determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; and if the preset period is determined not to be reached, executing a step of judging whether the preset period is reached.
The embodiment of the present invention further provides a device for adjusting a signal coverage, which is characterized by comprising: a measuring module, configured to measure, by a base station, an angle of arrival AOA corresponding to each user terminal; the first determining module is used for determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; a second determining module, configured to search, according to the target area information, corresponding configuration information from a database, where the configuration information includes at least one of: antenna weight information and power information; and the configuration module is used for configuring according to the configuration information so as to adjust the signal coverage area of the base station to an area corresponding to the target area information.
Optionally, the base station includes multiple cells, a signal coverage area corresponding to the base station includes signal coverage areas of the multiple cells, the signal coverage area is a sector area, and the target area information includes a target central angle; the first determining module includes: the central angle determining submodule is used for determining the AOA corresponding to each user terminal accessed to each cell aiming at each cell; sequencing all the AOAs to determine the maximum AOA and the minimum AOA; and calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
Optionally, the base station includes multiple cells, a signal coverage area corresponding to the base station includes signal coverage areas of the multiple cells, the signal coverage area is a sector area, and the target area information includes a target radius; the first determining module includes: the radius determining submodule is used for determining the AOA corresponding to each user terminal accessed to each cell aiming at each cell; respectively determining the distance between each user terminal and the base station according to the AOA corresponding to each user terminal; the maximum distance is determined as the target radius.
Optionally, the database comprises: the mapping information is used for representing the mapping relation between the signal coverage area and the configuration information; the second determining module is configured to search mapping information based on the target area information, and determine corresponding configuration information.
Optionally, the configuration information includes antenna weight information, and the configuration module includes: a first information configuration submodule, configured to perform beamforming according to antenna weight information, where the antenna weight information includes: phase weight information and/or amplitude weight information.
Optionally, the configuration information includes power information, and the configuration module includes: and the second information configuration submodule is used for configuring the downlink transmitting power according to the power information.
Optionally, the apparatus further comprises: a judging module, configured to judge whether a preset period is reached after the base station measures an angle of arrival AOA corresponding to each user terminal; the first determining module is configured to, if it is determined that the preset period is reached, perform a step of determining target area information corresponding to a target signal coverage area according to an AOA corresponding to each user terminal; and the judging module is used for executing the step of judging whether the preset period is reached or not if the preset period is not reached.
Compared with the prior art, the embodiment of the invention has the following advantages:
in the embodiment of the invention, a base station measures the arrival angle AOA corresponding to each user terminal, and then determines target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; searching corresponding configuration information from a database according to the target area information, and configuring according to the configuration information so as to adjust the signal coverage area of the base station to the target signal coverage area; and the problem of signal coverage area overlapping is solved, and resources are saved.
Drawings
FIG. 1 is a flowchart illustrating steps of a method for adjusting signal coverage according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an AOA of a user terminal according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of an alternative embodiment of a method for adjusting signal coverage according to the present invention;
FIG. 4 is a diagram illustrating a target central angle corresponding to a cell according to an embodiment of the present invention;
FIG. 5 is a block diagram of an embodiment of a device for adjusting signal coverage according to the present invention;
fig. 6 is a block diagram of an alternative embodiment of a signal coverage adjusting apparatus according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for adjusting a signal coverage area according to the present invention is shown, which may specifically include the following steps:
And 102, determining target area information corresponding to the target signal coverage area according to the AOA corresponding to each user terminal.
In the embodiment of the present invention, a plurality of sets of configuration information may be pre-stored in a database, where the configuration information may include at least one of the following: antenna weight information and power information, wherein the antenna weight information may refer to weight information of a beam, and the power information may refer to a power value of downlink transmission power; and before the base station establishes the cell for the first time, the base station can select one group of configuration information from the stored multiple groups of configuration information according to a preset rule, and configure according to the selected configuration information to establish the cell. The preset rule may be determined according to a requirement, for example, a default set of configuration information is selected, or a set of configuration information is randomly selected, which is not limited in this embodiment of the present invention. After the cell is established, the cell may provide wireless service for the user terminals residing in its signal coverage area.
Because the overlapping of the signal coverage areas causes resource waste, the embodiment of the invention provides a method for adjusting the signal coverage area, which solves the overlapping problem of the signal coverage areas and saves resources by adjusting the signal coverage areas; the signal coverage area of the base station is a sector area centered on the base station, and therefore, the signal coverage area is adjusted, that is, the central angle and/or radius of the sector is adjusted. In the embodiment of the invention, the base station can measure the arrival angle AOA corresponding to each user terminal, and then determines the target area information corresponding to the target signal coverage area according to the AOA corresponding to the user terminal; wherein the target area information may include a target central angle and/or a target radius. Here, a User Equipment (UE) is on a ray starting from a base station (ENB), and a clockwise angle between a ray in a direction due to north of the ENB and the ray may be referred to as AOA, as shown in fig. 2.
And step 104, configuring according to the configuration information so as to adjust the signal coverage area of the base station to be a target signal coverage area.
In the embodiment of the invention, the mapping relation between each group of configuration information and the area information is configured while the configuration information is stored in the database, and the area information comprises a central angle and/or a radius; wherein the database is stored in an OM (Operation-Maintenance) module. Therefore, after the physical layer module of the base station determines the target area information, the target area information can be sent to the OM module; then, the OM module may search the configuration information corresponding to the target area information from the database, and return the configuration information to the physical layer module. And the physical layer module can be configured according to the configuration information so as to adjust the signal coverage area of the base station to the target signal coverage area, thereby further realizing the adjustment of the signal coverage area.
In the embodiment of the invention, a base station measures the arrival angle AOA corresponding to each user terminal, and then determines target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; searching corresponding configuration information from a database according to the target area information, and configuring according to the configuration information so as to adjust the signal coverage area of the base station to the target signal coverage area; and further, the signal coverage area is adjusted, the problem of overlapping of the signal coverage areas is solved, and resources are saved.
Referring to fig. 3, a flowchart illustrating steps of an alternative embodiment of a method for adjusting a signal coverage area according to the present invention is shown, which may specifically include the following steps:
In the embodiment of the invention, the base station can be configured according to default configuration information to establish a cell; for example, when the configuration information includes antenna weight information, if the antenna weight information includes phase weight information of a beam, the phase weight of the beam may be configured according to the phase weight information; if the antenna weight information includes amplitude weight information of the beam, the amplitude weight of the beam may be configured according to the amplitude weight information. For another example, when the configuration information includes power information, the downlink transmission power of the base station may be configured. When a base station needs to establish a plurality of cells, the base station can carry out configuration according to the configuration information corresponding to each cell to establish each cell; the configuration information corresponding to each cell may be the same or different, and may be specifically determined according to a requirement. After the cell is established, the user terminal in the coverage area of the corresponding signal of the cell can be accessed to the cell, and the cell provides wireless service for the user terminal. In the process of providing wireless service in a cell, a base station can receive a signal transmitted by a user terminal through an antenna, and then a physical layer module of the base station can measure the AOA of the user terminal according to the received signal; and subsequently, adjusting the signal coverage range according to the AOA of each user terminal.
In the embodiment of the invention, the coverage area of the signal corresponding to each cell can be periodically adjusted, so that automatic adjustment is realized, and resources are further saved; the adjusted period may be a preset period, and the preset period may be set as required, which is not limited in this embodiment of the present invention. The physical layer module of the base station may further determine whether the preset period is reached, and when it is determined that the preset period is reached, step 303 may be executed; when it is determined that the preset period has not been reached, it may be continuously determined whether the preset period has been reached. The preset period corresponding to each cell may be the same or different, and may be specifically set according to requirements, which is not limited in this embodiment of the present invention. In an example of the present invention, a timer may be used for timing, that is, the timing time of the timer is a preset period, and then whether the preset period is reached may be determined by determining whether the timer is overtime. When the timer times out, it may be determined that the preset period is reached, and when the timer does not time out, it may be determined that the preset period is not reached. Of course, if the preset periods of different cells are different, one timer may be set for each cell.
In this embodiment of the present invention, the adjusting of the signal coverage may include width adjusting and radius adjusting of the signal coverage area, where the width adjusting may be performed by adjusting a central angle, and therefore the target area information in this embodiment of the present invention may include a target central angle and a target radius. The width adjustment may refer to steps 303 to 307, and the radius adjustment may specifically refer to steps 303 and 308 to 313.
Step 303, determining, for each cell, an AOA corresponding to each user terminal accessing the cell.
And step 304, sequencing the AOAs to determine the maximum AOA and the minimum AOA.
And 305, calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
If the base station establishes a plurality of cells, it may respectively adjust the width of a signal coverage area corresponding to each cell when determining a preset period for reaching the cell, specifically as follows:
in the embodiment of the invention, a physical layer module of a base station can determine all user terminals accessed to the cell and then determine the AOA corresponding to each user terminal in the cell; and then, according to the AOA of each user terminal, determining a target central angle of a signal coverage area corresponding to the cell. In the embodiment of the present invention, the minimum width that can cover all the user terminals in the cell, that is, the minimum central angle of the sector area that can cover all the user terminals in the cell, can be determined as the target central angle; it is therefore possible to determine the maximum AOA and the minimum AOA within the cell, then calculate the difference between the maximum AOA and the minimum AOA, and determine the difference as the target central angle. The physical layer module of the base station can sort the AOAs of the user terminals, and then selects the maximum AOA and the minimum AOA; of course, the difference between any two AOAs may be calculated, and the largest difference may be determined as the target central angle. As shown in fig. 4, fig. 4 includes user terminals UE1, UE2, UE3, and UE4, where AOA of UE1 is minimum and AOA of UE4 is maximum, and a difference α between AOA of UE4 and AOA of UE1 may be used as a target central angle.
In the embodiment of the present invention, a plurality of sets of configuration information may be stored in advance in a database of an OM module of the base station, and then mapping information is established based on a mapping relationship between each set of configuration information and the area information, and the mapping information is stored in the database. After the physical layer module of the base station determines the target area information, the target area information can be sent to an OM module, and the OM module can search mapping information based on the target area information and search an identifier of configuration information corresponding to the target area information from the mapping information; and then searching the corresponding configuration information from the database based on the identification of the configuration information.
Step 306, searching mapping information based on the target central angle, and determining corresponding phase weight information.
When the configuration information in the database only includes the phase weight information, a mapping relationship between the central angle and the phase weight information can be set, and then the mapping information is established based on the mapping relationship between each group of phase weight information and the central angle. In an example of the present invention, phase weight information may be set according to a set step length; for example, if the maximum value of the central angle of the coverage area is 30 °, the setting step size may be set to 2 °, then one set of phase weight information may be set every 2 °, and then 15 sets of phase weight information may be set. And then the subsequent OM module can search mapping information based on the target central angle and determine corresponding phase weight information.
And 307, performing beamforming according to the phase weight information.
After determining the phase weight information corresponding to the target central angle, the OM module may return the phase weight information to the physical layer module, and the physical layer module may perform Beam-Forming (BF) according to the phase weight information, for example, configure the corresponding phase weight information for a Beam. The central angles of corresponding signal coverage areas are different due to different groups of phase weight information; therefore, after the beamforming is completed, the central angle of the signal coverage area corresponding to the cell is correspondingly changed to be the target central angle, and the signal coverage area of the base station is changed to be the target signal coverage area (i.e. the width is adjusted).
Step 308, respectively determining the distance between each ue and the base station according to the AOA corresponding to each ue.
In the embodiment of the invention, the radius which can cover the user terminal farthest away from the base station in the cell can be determined as the target radius; therefore, the distance between each ue and the base station can be calculated based on the AOA corresponding to each ue, and then the maximum distance is determined as the target radius. The position of the user terminal can be calculated by calculating the relative position or angle between the user terminal and the anchor node and then utilizing triangulation or other methods; and calculating the distance between the user terminal and the base station based on the position of the user terminal.
In an example of the present invention, one way to adjust the radius may be to adjust the amplitude of the beam, which may specifically refer to steps 310 to 311:
step 310, searching mapping information based on the target radius, and determining corresponding amplitude weight information.
When the configuration information in the database only includes the amplitude weight information, a mapping relationship between the radius and the amplitude weight information can be set, and then the mapping information is established based on the mapping relationship between each group of amplitude weight information and the radius. In an example of the present invention, the amplitude weight information may be set according to a set step length; for example, if the maximum value of the radius of the coverage area is 50km, the set step length may be set to 1000m, then one set of amplitude weight information may be set every 1000m, and then 50 sets of amplitude weight information may be set. And then the subsequent OM module can search mapping information based on the target radius and determine corresponding amplitude weight information.
And 311, performing beamforming according to the amplitude weight information.
After the OM module determines the amplitude weight information corresponding to the target radius, the OM module may return the amplitude weight information to the physical layer module, and the physical layer module may perform Beam-Forming (BF) according to the amplitude weight information, for example, configure the corresponding amplitude weight information for a Beam. The radiuses of corresponding signal coverage areas are different due to different groups of amplitude weight information; therefore, after the beamforming is completed, the radius of the signal coverage area corresponding to the cell is correspondingly changed to be the target radius, and the signal coverage area of the base station is changed to be the target signal coverage area (namely, the radius is adjusted).
In another example of the present invention, one way to adjust the radius may be to adjust the amplitude of the beam, which may be specifically referred to as steps 312 to 313:
step 312, searching mapping information based on the target radius, and determining corresponding power information.
When the configuration information in the database only includes power information, a mapping relationship between the radius and the power information may be set, and then mapping information is established based on the mapping relationship between each group of power information and the radius. In one example of the present invention, the power information may be set according to a set step size; for example, if the maximum value of the radius of the coverage area is 50km, the setting step size may be set to 1000m, then one set of power information may be set every 1000m, and then 50 sets of power information may be set. And then the subsequent OM module can look up mapping information based on the target radius to determine corresponding power information.
Step 313, configuring the downlink transmitting power according to the power information.
In the embodiment of the present invention, the coverage area of the signal corresponding to the base station may be adjusted by configuring the power value of the downlink transmission power as the power information; and the subsequent cell transmits the downlink signal according to the power information.
In the embodiment of the invention, a base station measures the arrival angle AOA corresponding to each user terminal, and then determines target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; searching corresponding configuration information from a database according to the target area information, and configuring according to the configuration information so as to adjust the signal coverage area of the base station to the target signal coverage area; and further, the signal coverage area is adjusted, the problem of overlapping of the signal coverage areas is solved, and resources are saved. Meanwhile, the same frequency interference is reduced, the wireless service quality is improved, and the user experience can also be improved.
Secondly, in the embodiment of the invention, the base station can measure the arrival angle AOA corresponding to each user terminal by the base station, and then determine the target central angle according to the AOA corresponding to each user terminal; and searching mapping information based on the target central angle, determining corresponding phase weight information, performing beam forming according to the phase weight information, and adjusting the width of a signal coverage area to solve the problem of overlapping of signal coverage areas in a long and narrow user dense area and save resources.
Further, in the embodiment of the present invention, the base station may measure the angle of arrival AOA corresponding to each user terminal by the base station, and then determine the target radius according to the AOA corresponding to each user terminal; then, mapping information can be searched based on the target radius, corresponding amplitude weight information is determined, then beam forming is carried out according to the amplitude weight information, and further the radius of a signal coverage area is adjusted; or searching mapping information based on the target radius, determining corresponding power information, and adjusting the coverage of the signal corresponding to the base station by configuring the transmission power of the downlink signal as the power information. And furthermore, the problem of overlapping of signal coverage areas is solved by adjusting the radius of the signal coverage areas, so that resources are saved, and resources are saved.
Thirdly, in the embodiment of the invention, whether the preset period is reached can be judged; if the preset period is reached, executing a step of determining corresponding target area information according to the AOA corresponding to each user terminal; and if the preset period is determined not to be reached, executing a step of judging whether the preset period is reached. And then the range of the signal coverage area is adjusted periodically, so that automatic adjustment is realized, the adjustment efficiency is improved, and the resources are further saved.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 5, a block diagram of a structure of an embodiment of an apparatus for adjusting a signal coverage according to the present invention is shown, and specifically, the apparatus may include the following modules:
a measuring module 501, configured to measure, by a base station, an angle of arrival AOA corresponding to each user terminal;
a first determining module 502, configured to determine, according to the AOA corresponding to each user equipment, target area information corresponding to a target signal coverage area;
a second determining module 503, configured to search, according to the target area information, corresponding configuration information from a database, where the configuration information includes at least one of: antenna weight information and power information;
a configuration module 504, configured according to the configuration information, to adjust a signal coverage area of the base station to an area corresponding to the target area information.
Referring to fig. 6, a block diagram of an alternative embodiment of the apparatus for adjusting a signal coverage according to the present invention is shown, and specifically, the apparatus may include the following modules:
in an optional embodiment of the present invention, the base station includes a plurality of cells, a signal coverage area corresponding to the base station includes signal coverage areas of the plurality of cells, the signal coverage area is a sector area, and the target area information includes a target central angle; the first determining module 502 comprises:
the central angle determining submodule 5021 is used for determining, for each cell, an AOA corresponding to each user terminal accessing the cell; sequencing all the AOAs to determine the maximum AOA and the minimum AOA; and calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
In an optional embodiment of the present invention, the base station includes a plurality of cells, a signal coverage area corresponding to the base station includes signal coverage areas of the plurality of cells, the signal coverage area is a sector area, and the target area information includes a target radius; the first determining module 502 comprises:
the radius determination submodule 5022 is configured to determine, for each cell, an AOA corresponding to each user equipment accessing the cell; respectively determining the distance between each user terminal and the base station according to the AOA corresponding to each user terminal; the maximum distance is determined as the target radius.
In an optional embodiment of the present invention, the database comprises: the mapping information is used for representing the mapping relation between the signal coverage area and the configuration information; the second determining module 503 is configured to find mapping information based on the target area information, and determine corresponding configuration information.
In an optional embodiment of the present invention, the configuration information includes antenna weight information, and the configuration module 504 includes:
a first information configuration sub-module 5041, configured to perform beamforming according to antenna weight information, where the antenna weight information includes: phase weight information and/or amplitude weight information.
In an optional embodiment of the present invention, the configuration information includes power information, and the configuration module 504 includes: the second information configuring sub-module 5042 is configured to configure the transmission power of the downlink signal as the power information, and adjust the coverage area of the signal corresponding to the base station.
In an optional embodiment of the present invention, the apparatus further comprises:
a determining module 505, configured to determine whether a preset period is reached after the base station measures an angle of arrival AOA corresponding to each user terminal;
the first determining module 502 is configured to, if it is determined that the preset period is reached, perform a step of determining target area information corresponding to a target signal coverage area according to an AOA corresponding to each user terminal;
the determining module 505 is configured to, if it is determined that the preset period is not reached, perform a step of determining whether the preset period is reached.
In the embodiment of the invention, a base station measures the arrival angle AOA corresponding to each user terminal, and then determines target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; searching corresponding configuration information from a database according to the target area information, and configuring according to the configuration information so as to adjust the signal coverage area of the base station to the target signal coverage area; and further, the signal coverage area is adjusted, the problem of overlapping of the signal coverage areas is solved, and resources are saved.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of 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, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The method for adjusting a signal coverage and the device for adjusting a signal coverage provided by the present invention are described in detail above, and a specific example is applied in the present document to illustrate the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (14)
1. A method for adjusting signal coverage, comprising:
the base station measures the arrival angle AOA corresponding to each user terminal;
determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; the target area information comprises a target central angle and/or a target radius;
according to the target area information, searching corresponding configuration information from a database, wherein the configuration information comprises at least one of the following: antenna weight information and power information;
and configuring according to the configuration information so as to adjust the signal coverage area of the base station to be the target signal coverage area.
2. The method of claim 1, wherein the base station comprises a plurality of cells, wherein the base station corresponding signal coverage area comprises signal coverage areas of the plurality of cells, and wherein the signal coverage area is a sector area;
the determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal includes:
aiming at each cell, determining the AOA corresponding to each user terminal accessed to the cell;
sequencing all the AOAs to determine the maximum AOA and the minimum AOA;
and calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
3. The method of claim 1, wherein the base station comprises a plurality of cells, wherein the base station corresponding signal coverage area comprises signal coverage areas of the plurality of cells, and wherein the signal coverage area is a sector area;
the determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal includes:
aiming at each cell, determining the AOA corresponding to each user terminal accessed to the cell;
respectively determining the distance between each user terminal and the base station according to the AOA corresponding to each user terminal;
the maximum distance is determined as the target radius.
4. The method of claim 1, wherein the database comprises: the mapping information is used for representing the mapping relation between the signal coverage area and the configuration information;
the searching for the corresponding configuration information from the database according to the target area information includes:
and searching mapping information based on the target area information, and determining corresponding configuration information.
5. The method of claim 1, wherein the configuration information comprises antenna weight information,
the configuring according to the configuration information includes:
performing beamforming according to antenna weight information, wherein the antenna weight information comprises: phase weight information and/or amplitude weight information.
6. The method of claim 1, wherein the configuration information comprises power information, and wherein the configuring according to the configuration information comprises:
and configuring downlink transmitting power according to the power information.
7. The method of claim 1, wherein after the base station measures the angle of arrival AOA corresponding to each ue, the method further comprises:
judging whether a preset period is reached;
if the preset period is reached, determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal;
and if the preset period is determined not to be reached, executing a step of judging whether the preset period is reached.
8. An apparatus for adjusting signal coverage, comprising:
a measuring module, configured to measure, by a base station, an angle of arrival AOA corresponding to each user terminal;
the first determining module is used for determining target area information corresponding to a target signal coverage area according to the AOA corresponding to each user terminal; the target area information comprises a target central angle and/or a target radius;
a second determining module, configured to search, according to the target area information, corresponding configuration information from a database, where the configuration information includes at least one of: antenna weight information and power information;
and the configuration module is used for configuring according to the configuration information so as to adjust the signal coverage area of the base station to an area corresponding to the target area information.
9. The apparatus of claim 8, wherein the base station comprises a plurality of cells, wherein the base station corresponding signal coverage area comprises signal coverage areas of the plurality of cells, and wherein the signal coverage area is a sector area; the first determining module includes:
the central angle determining submodule is used for determining the AOA corresponding to each user terminal accessed to each cell aiming at each cell; sequencing all the AOAs to determine the maximum AOA and the minimum AOA; and calculating the difference value of the maximum AOA and the minimum AOA, and determining the difference value as a target central angle.
10. The apparatus of claim 8, wherein the base station comprises a plurality of cells, wherein the base station corresponding signal coverage area comprises signal coverage areas of the plurality of cells, and wherein the signal coverage area is a sector area; the first determining module includes:
the radius determining submodule is used for determining the AOA corresponding to each user terminal accessed to each cell aiming at each cell; respectively determining the distance between each user terminal and the base station according to the AOA corresponding to each user terminal; the maximum distance is determined as the target radius.
11. The apparatus of claim 8, wherein the database comprises: the mapping information is used for representing the mapping relation between the signal coverage area and the configuration information;
the second determining module is configured to search mapping information based on the target area information, and determine corresponding configuration information.
12. The apparatus of claim 8, wherein the configuration information comprises antenna weight information, and wherein the configuration module comprises:
a first information configuration submodule, configured to perform beamforming according to antenna weight information, where the antenna weight information includes: phase weight information and/or amplitude weight information.
13. The apparatus of claim 8, wherein the configuration information comprises power information, and wherein the configuration module comprises:
and the second information configuration submodule is used for configuring the downlink transmitting power according to the power information.
14. The apparatus of claim 8, further comprising:
a judging module, configured to judge whether a preset period is reached after the base station measures an angle of arrival AOA corresponding to each user terminal;
the first determining module is configured to, if it is determined that the preset period is reached, perform a step of determining target area information corresponding to a target signal coverage area according to an AOA corresponding to each user terminal;
and the judging module is used for executing the step of judging whether the preset period is reached or not if the preset period is not reached.
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