Signal strength adjustment method, base station system, base station and medium

Abstract

The embodiments of the present application provide a signal strength adjustment method, a base station system, a base station and a medium, which relate to the field of communication technology and can reduce the radiation of the signal emitted by the base station to the human body. The technical solution of the present application includes: detecting the infrared radiation radiated by the designated object around the base station, and then determining the target direction of the designated object relative to the base station according to the direction of the infrared radiation radiated by the detected designated object. Then, based on the intensity of the infrared radiation radiated by the designated object, determine the target transmission power; wherein the intensity of the infrared radiation radiated by the designated object is negatively correlated with the target transmission power. Then, adjust the transmission power of the signal in the target direction according to the target transmission power.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a signal strength adjustment method, a base station system, a base station and a medium. Background Art

[0002] At present, beamforming technology has been widely used in fields such as the fifth generation mobile communication technology (5G). For example, the base station can automatically adjust the direction of the transmitted signal based on the beamforming technology according to the user terminal location and the application requirements of the mobile service.

[0003] However, the signals emitted by base stations have certain radiation effects on the human body, especially micro base stations placed on office desks or bedside, which have particularly obvious radiation effects on the human body. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a signal strength adjustment method, a base station system, a base station and a medium to reduce the radiation of the signal transmitted by the base station to the human body. The specific technical solution is as follows:

[0005] In a first aspect of an embodiment of the present application, a signal strength adjustment method is provided, which is applied to a base station. The method includes:

[0006] detecting infrared rays radiated by a designated object around the base station;

[0007] Determining a target direction of the designated object relative to the base station according to the detected direction of infrared rays radiated by the designated object;

[0008] Determine the target transmission power based on the infrared intensity radiated by the designated object; wherein the infrared intensity radiated by the designated object is negatively correlated with the target transmission power;

[0009] The transmission power of the signal in the target direction is adjusted according to the target transmission power.

[0010] Optionally, the detecting infrared rays radiated by a designated object around the base station includes:

[0011] detecting infrared rays radiated by objects around the base station;

[0012] Infrared rays whose signal frequencies belong to a preset frequency range are screened out to obtain infrared rays radiated by the designated object.

[0013] Optionally, determining the target transmission power based on the infrared intensity radiated by the designated object includes:

[0014] Determine the target intensity level to which the infrared intensity radiated by the designated object belongs;

[0015] Determining a target power level corresponding to the target intensity level according to a preset correspondence between intensity levels and power levels;

[0016] Based on a preset correspondence between power level and transmit power, a target transmit power corresponding to the target power level is determined.

[0017] Optionally, adjusting the transmit power of the signal in the target direction according to the target transmit power includes:

[0018] The transmission power of the signal in the target direction is adjusted to the target transmission power.

[0019] Optionally, adjusting the transmit power of the signal in the target direction according to the target transmit power includes:

[0020] In the case where there is a terminal communicating with the base station in the target direction, obtaining a current transmit power used by the base station to communicate with the terminal, calculating a weighted sum of the current transmit power and the target transmit power, and adjusting the transmit power of the signal in the target direction to the calculated weighted sum; or,

[0021] In a case where there is no terminal communicating with the base station in the target direction, the transmission power of the signal in the target direction is adjusted to the target transmission power.

[0022] Optionally, determining the target direction of the designated object relative to the base station according to the detected direction of infrared rays radiated by the designated object includes:

[0023] The direction of the infrared light radiated by the designated object detected in the preset coordinate system is taken as the target direction, wherein the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane.

[0024] According to a second aspect of the embodiments of the present application, a base station system is provided, including: a detection antenna, a beamforming comprehensive calculation module and a digital beamformer;

[0025] The detection antenna is used to detect infrared rays radiated by a designated object around the base station;

[0026] The shaped comprehensive calculation module is used to determine the target direction of the designated object relative to the base station according to the direction of the infrared ray radiated by the designated object detected by the detection antenna; and determine the target transmission power based on the intensity of the infrared ray radiated by the designated object; wherein the intensity of the infrared ray radiated by the designated object is negatively correlated with the target transmission power;

[0027] The digital beam former is used to adjust the transmission power of the signal in the target direction according to the target transmission power determined by the beamforming comprehensive calculation module.

[0028] Optionally, the detection antenna is specifically used to detect infrared rays radiated by objects around the base station;

[0029] The shaped comprehensive calculation module is also used to filter out infrared rays whose signal frequencies belong to a preset frequency range from the infrared rays detected by the detection antenna, and obtain the infrared rays radiated by the designated object.

[0030] Optionally, the shaping comprehensive calculation module is specifically used for:

[0031] Determine the target intensity level to which the infrared intensity radiated by the designated object belongs;

[0032] Determining a target power level corresponding to the target intensity level according to a preset correspondence between intensity levels and power levels;

[0033] Based on a preset correspondence between power level and transmit power, a target transmit power corresponding to the target power level is determined.

[0034] Optionally, the digital beamformer is specifically used for:

[0035] The transmission power of the signal in the target direction is adjusted to the target transmission power determined by the shaping comprehensive calculation module.

[0036] Optionally, the shaping comprehensive calculation module is further used to obtain the current transmission power used by the base station to communicate with the terminal when there is a terminal communicating with the base station in the target direction, and calculate the weighted sum of the current transmission power and the target transmission power; the digital beamformer is specifically used to adjust the transmission power of the signal in the target direction to the weighted sum calculated by the shaping comprehensive calculation module; or,

[0037] The digital beam former is specifically used to adjust the transmission power of the signal in the target direction to the target transmission power determined by the beamforming comprehensive calculation module when there is no terminal communicating with the base station in the target direction.

[0038] Optionally, the shaping comprehensive calculation module is specifically used for:

[0039] The direction of the infrared light radiated by the designated object detected in the preset coordinate system is taken as the target direction, wherein the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane.

[0040] Optionally, the system further comprises: an analog beamformer and a signal antenna; the digital beamformer is connected to the analog beamformer via a radio frequency (RF) chain; the digital beamformer is specifically used to:

[0041] The analog beamformer is controlled to transmit a signal through the signal antenna in the target direction according to the adjusted transmission power.

[0042] According to a third aspect of the embodiments of the present application, a base station is provided, including:

[0043] at least one processor; and

[0044] a memory communicatively connected to the at least one processor; wherein,

[0045] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can perform any of the signal strength adjustment methods described above.

[0046] According to a fourth aspect of the embodiments of the present application, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the signal strength adjustment method according to any one of the above items.

[0047] According to a fifth aspect of an embodiment of the present application, a computer program product is provided, including a computer program, which, when executed by a processor, implements the signal strength adjustment method according to any one of the above items.

[0048] Beneficial effects of the embodiments of the present application:

[0049] The signal strength adjustment method, base station system, base station and medium provided in the embodiments of the present application, the base station determines the target direction of the designated object relative to the base station based on the detected infrared direction radiated by the designated object, and determines the target transmission power based on the infrared intensity radiated by the designated object, and adjusts the transmission power in the target direction based on this. Since the infrared intensity is negatively correlated with the target transmission power, and the higher the infrared intensity, the closer the distance between the designated object and the base station, the smaller the transmission power, and the smaller the radiation of the signal to the designated object, that is, in the embodiments of the present application, the closer the person is to the base station, the smaller the transmission power in the direction of the person, and the smaller the radiation of the signal to the human body. Therefore, the embodiments of the present application can reduce the radiation of the signal to the human body according to the distance between the person and the base station.

[0050] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0052] Figure 1 A flow chart of a signal strength adjustment method provided in an embodiment of the present application;

[0053] Figure 2 An exemplary schematic diagram of an antenna provided in an embodiment of the present application;

[0054] Figure 3 A flowchart of another signal strength adjustment method provided in an embodiment of the present application;

[0055] Figure 4 An exemplary schematic diagram of a base station system structure provided in an embodiment of the present application;

[0056] Figure 5 An exemplary schematic diagram of another base station system structure provided in an embodiment of the present application;

[0057] Figure 6 An exemplary schematic diagram of a base station structure provided for an embodiment of the present application. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0059] Currently, base stations can only adjust the signal strength of base station transmission according to pre-configured business rules, for example, according to the location of the mobile phone and the needs of mobile services. However, the signal transmitted by the base station has a certain radiation to the human body, and the greater the signal strength transmitted by the base station, the greater the radiation to the human body.

[0060] In order to reduce the radiation of the signal transmitted by the base station to the human body, the embodiment of the present application provides a signal strength adjustment method. The method is applied to the base station, wherein the base station can be set at a location close to the user, for example, the base station can be placed on a desk or in a bedroom. Accordingly, the base station can be a small base station, such as a micro base station. Figure 1 As shown, the signal strength adjustment method includes the following steps:

[0061] S101. Detect infrared rays radiated by designated objects around a base station.

[0062] It is understandable that the radiation generated by the signal transmitted by the base station may have an impact on some objects, which are referred to as designated objects. In the embodiment of the present application, it is necessary to reduce the radiation generated by the signal transmitted by the base station to the designated objects. For example, the designated objects include: people, instruments and / or meters, etc.

[0063] In one implementation, the base station may be configured with a detection antenna for detecting infrared rays, and the base station may periodically detect infrared rays radiated by designated objects around the base station through the detection antenna.

[0064] S102: Determine a target direction of the designated object relative to the base station according to the detected direction of infrared rays radiated by the designated object.

[0065] In one implementation, the base station may use the direction of the infrared rays radiated by the detected designated object as the target direction. For example, if the base station detects the infrared rays radiated by a person in the (x, y, z) direction, the (x, y, z) direction is used as the target direction.

[0066] S103: Determine the target transmission power based on the infrared intensity radiated by the designated object.

[0067] Among them, the infrared intensity radiated by the specified object is negatively correlated with the target transmission power.

[0068] It can be understood that the higher the infrared intensity of the designated object detected by the base station, the closer the distance between the designated object and the base station, and the greater the radiation of the signal transmitted by the base station on the designated object, so the target transmission power is set to be smaller; correspondingly, the lower the infrared intensity of the designated object detected by the base station, the farther the distance between the designated object and the base station, and the smaller the radiation of the signal transmitted by the base station on the designated object, that is, the signal transmitted by the base station has less impact on the designated object, so in order to ensure the communication stability in the target direction, the target transmission power can be set to be larger.

[0069] S104: Adjust the transmission power of the signal in the target direction according to the target transmission power.

[0070] In one implementation, the base station can transmit signals in the target direction based on the target transmit power through the signal antenna based on the beamforming technology. Among them, the beamforming technology is a signal preprocessing technology based on the antenna array. By adjusting the weighting coefficient of each array element in the antenna array, a directional beam is generated. This method can obtain obvious array gain.

[0071] In the signal strength adjustment method provided in the embodiment of the present application, the base station determines the target direction of the designated object relative to the base station based on the detected infrared direction radiated by the designated object, and determines the target transmission power based on the infrared intensity radiated by the designated object, and adjusts the transmission power in the target direction based on this. Since the infrared intensity is negatively correlated with the target transmission power, and the higher the infrared intensity, the closer the distance between the designated object and the base station, the smaller the transmission power, and the smaller the radiation of the signal to the designated object, that is, in the embodiment of the present application, the closer the person is to the base station, the smaller the transmission power in the direction of the person, and the smaller the radiation of the signal to the human body. Therefore, the embodiment of the present application can reduce the radiation of the signal to the human body according to the distance between the person and the base station.

[0072] In the embodiment of the present application, before detecting infrared radiation from a designated object around the base station in S101, data modeling needs to be completed in advance, and the result obtained by the data modeling can be sent to the base station by the manufacturer or operator of the base station. The specific data modeling process is as follows:

[0073] (1) Establish a preset coordinate system.

[0074] Taking the center point of the base station or the center point of the signal antenna as the coordinate origin, establish the X-axis and Y-axis on the horizontal plane, and establish the Z-axis perpendicular to the horizontal plane to obtain a preset coordinate system.

[0075] The signal antenna includes multiple sub-antennas, and the sub-antenna direction of the signal antenna in the preset coordinate system is determined. The sub-antenna directions are different, and the sub-antenna directions can be represented by vectors. The signal antenna is linearly scattered, and the shape formed can be spherical or hemispherical, etc. The center point of the signal antenna is the center of the sphere or the center of the bottom surface of the hemispherical.

[0076] For example, see Figure 2 , Figure 2 The cylindrical object on the left is the signal antenna of the base station, and the signal antenna is installed on a fixed pole. The curves on the right side of the signal antenna are used to indicate the direction of the signal emitted by the signal antenna.

[0077] (2) Establish the corresponding relationship between the detection antenna and the signal antenna.

[0078] Optionally, the number of sub-antennas of the detection antenna is the same as the number of sub-antennas of the signal antenna; and in a preset coordinate system, the directions of the sub-antennas of the detection antenna and the directions of the sub-antennas of the signal antenna correspond one-to-one.

[0079] Alternatively, the number of sub-antennas of the detection antenna is different from the number of sub-antennas of the signal antenna; and in the preset coordinate system, the directions of the sub-antennas of the detection antenna and the directions of the sub-antennas of the signal antenna correspond to each other in a certain ratio. For example, the directions of every two sub-antennas of the detection antenna correspond to the directions of one sub-antenna of the signal antenna, and the directions of the corresponding sub-antennas are close.

[0080] (3) Set the signal antenna transmission strength level.

[0081] A plurality of power levels are set for the signal transmission power of the base station. The more power levels there are, the higher the adjustment accuracy of the transmission power of the base station is. The number of the set power levels can be set according to actual needs.

[0082] Each power level corresponds to a transmit power, and the transmit power corresponding to each power level is within the power range between the maximum transmit power and the minimum transmit power of the base station. Optionally, the higher the power level, the greater the corresponding transmit power; correspondingly, the lower the power level, the smaller the corresponding transmit power.

[0083] For example, the corresponding relationship between the transmission power and the power level is shown in Table 1:

[0084] Table 1

[0085] Transmit power (unit: Watt, W) Power level 1 First level 2 Second level 3 Third Level … … K Grade K

[0086] (4) Set the detection antenna signal sensing strength level.

[0087] Since the infrared intensity of an object decreases as the radiation distance increases, the higher the infrared intensity detected by the detection antenna of the base station, the closer the infrared radiation source is to the base station, and the lower the infrared intensity detected by the corresponding detection antenna, the farther the infrared radiation source is from the base station. Multiple infrared intensity levels can be pre-set, each infrared intensity level corresponds to a certain infrared intensity range, and the higher the infrared intensity level, the higher the corresponding infrared intensity.

[0088] (5) The relationship between the power level of the signal antenna transmission power and the intensity level of the infrared light sensed by the detection antenna.

[0089] Each power level is associated with each intensity level to obtain the corresponding relationship between the power level and the intensity level. Taking a person as an example, the higher the infrared intensity of the person's radiation received by the base station, the closer the person is to the base station, and the higher the radiation of the signal transmitted by the base station to the person, in order to reduce the radiation of the signal transmitted by the base station to the person, the transmission power of the base station can be reduced; on the contrary, the lower the infrared intensity of the person's radiation received by the base station, the farther the person is from the base station, and the lower the radiation of the signal transmitted by the base station to the person, in order to improve the communication quality, the transmission power of the base station can be appropriately increased.

[0090] Therefore, the higher the infrared intensity level, the lower the power level of the transmission power; the lower the infrared intensity level, the higher the power level of the transmission power. That is, the intensity level is negatively correlated with the power level.

[0091] For example, the corresponding relationship between the intensity level of infrared rays and the power level of base station transmission power is shown in Table 2:

[0092] Table 2

[0093] Strength level Power level Grade K First level Grades K-1 Second level Grades K-2 Third Level … … First level Grade K

[0094] (6) Balance the transmission strength of the signal antenna.

[0095] Taking a person as an example, assuming that the person is close to the base station, the transmission power in the direction of the person needs to be reduced. However, assuming that there is a terminal communicating with the base station in the direction of the person, too low a transmission power will affect the stability of communication between the base station and the terminal.

[0096] In order to balance this contradiction, weights can be set separately for the transmission power determined based on the infrared intensity and the transmission power determined based on the terminal position, and the weights can be recorded in a comprehensive relationship table to facilitate the subsequent determination of the transmission power based on the weights of the two transmission powers.

[0097] (7)Data recording.

[0098] The corresponding relationship between the intensity level of infrared rays and the power level of the transmitting power, the corresponding relationship between the power level and the transmitting power, and the comprehensive relationship table are stored in the memory.

[0099] In one embodiment of the present application, the method of detecting infrared rays radiated by designated objects around the base station in the above S101 includes: detecting infrared rays radiated by objects around the base station, and then screening out infrared rays whose signal frequencies belong to a preset frequency range to obtain infrared rays radiated by the designated objects.

[0100] The preset frequency range is the frequency range of infrared radiation emitted by the object whose radiation needs to be reduced. For example, the preset frequency range is the frequency range of infrared radiation emitted by a person. The preset frequency range can be obtained from a public data source or can be obtained by pre-measurement.

[0101] It can be understood that all objects in nature can radiate infrared rays to the surroundings, so the base station can receive infrared rays radiated by various surrounding objects. Since each object radiates infrared rays at different frequencies, the base station can filter out infrared rays radiated by a specified object by the infrared frequency.

[0102] By adopting the above method, the base station can accurately screen out the infrared rays radiated by the designated object through the detected frequencies of each infrared ray, thereby reducing the influence of the infrared rays radiated by non-designated objects on adjusting the transmission power of the base station.

[0103] In one embodiment of the present application, the above S102 determines the target direction of the designated object relative to the base station based on the direction of the infrared light radiated by the designated object, which can be implemented as follows: the direction of the infrared light radiated by the designated object in the preset coordinate system is used as the target direction.

[0104] Among them, the preset coordinate system is established in the above data modeling process, the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane.

[0105] In one implementation, the base station detects infrared rays through a detection antenna, and determines a sub-antenna in the detection antenna that has the same direction as the infrared rays radiated by the detected designated object, then determines the sub-antenna corresponding to the sub-antenna in the signal antenna, and uses the direction of the determined sub-antenna in the signal antenna as the target direction.

[0106] By adopting the above method, the embodiment of the present application can obtain the direction of the designated object relative to the base station based on the detected infrared radiation of the designated object, thereby accurately controlling the transmission power in the direction of the designated object and reducing the impact on signal reception and transmission in other directions.

[0107] In one embodiment of the present application, see Figure 3 The method of determining the target transmission power based on the infrared intensity radiated by the designated object in the above S103 includes the following two steps:

[0108] S1031. Determine the target intensity level to which the infrared intensity radiated by the designated object belongs.

[0109] In the above data modeling process, multiple infrared intensity ranges are set, and each infrared intensity level corresponds to a certain infrared intensity range. The base station can determine the infrared intensity range to which the infrared intensity radiated by the specified object belongs, and then use the intensity level corresponding to the determined infrared intensity range as the target intensity level.

[0110] S1032. Determine a target power level corresponding to the target intensity level according to a preset correspondence between intensity levels and power levels.

[0111] In one implementation, a target power level corresponding to the target intensity level is obtained according to a preset correspondence between the intensity level of infrared rays obtained in a data modeling process and the power level of the transmission power.

[0112] For example, in conjunction with Table 2, assuming that the target intensity level is the first level, the target power level is the Kth level.

[0113] S1033: Determine a target transmit power corresponding to the target power level based on a preset correspondence between the power level and the transmit power.

[0114] For example, in combination with Table 1, assuming that the target power level is the first level, the target transmit power is determined to be 1W.

[0115] By adopting the above method, the embodiment of the present application can automatically determine the transmission power in the direction of the designated object according to the detected infrared intensity of the designated object. This method can adjust the transmission power of the base station in real time according to the infrared intensity of the designated object in the environment where the base station is located, making the beamforming function more accurate and more intelligent, and expanding the application range of the embodiment of the present application.

[0116] For example, when a base station is installed in an indoor scene such as an office desk or bedroom, when a person is close to the base station, the base station detects that the infrared intensity radiated by the person is high and can reduce the transmission power in the direction of the person, thereby reducing the radiation of the emitted signal to the person, making the operation of the base station more environmentally friendly.

[0117] For another example, when the base station is installed near a precision instrument or meter factory, the base station detects the infrared radiation radiated by the instrument or meter and can reduce the transmission power in the direction of the instrument or meter, thereby reducing the interference of the emitted signal to the instrument or meter.

[0118] In one embodiment of the present application, the manner of adjusting the transmit power of the signal in the target direction according to the target transmit power in the above S104 includes the following two methods:

[0119] Method 1: Adjust the transmission power of the signal in the target direction to the target transmission power.

[0120] In one implementation, the base station may transmit a signal in a target direction at a target transmit power through a signal antenna based on beamforming technology.

[0121] Method 2: When there is a terminal communicating with the base station in the target direction, the current transmission power used by the base station and the terminal for communication is obtained; the transmission power of the signal in the target direction is adjusted to the weighted sum of the current transmission power and the target transmission power. Alternatively, when there is no terminal communicating with the base station in the target direction, the transmission power of the signal in the target direction is adjusted to the target transmission power.

[0122] In one implementation, when there is a terminal communicating with the base station in the target direction, the weights corresponding to the current transmit power and the target transmit power can be obtained from the comprehensive relationship table obtained in the above data modeling process, and then the weighted sum of the current transmit power and the target transmit power is calculated to obtain the calculation result. Based on the beamforming technology, the signal is transmitted in the target direction through the signal antenna according to the calculation result.

[0123] Alternatively, in the case where there is no terminal communicating with the base station in the target direction, the base station may transmit a signal in the target direction through a signal antenna according to a target transmit power based on the beamforming technology.

[0124] For example, if the current transmit power is 5 W, the target transmit power is 1 W, and the weights of the current transmit power and the target transmit power are both 0.5, then the transmit power in the target direction is determined to be 5×0.5+1×0.5=3 W.

[0125] By adopting the above method, the embodiment of the present application can balance the requirements of terminal communication for transmission power and the requirements of the designated object for transmission power, thereby reducing the impact on the communication stability between the base station and the terminal while reducing the radiation to the designated object.

[0126] Based on the same inventive concept, corresponding to the above method embodiment, the embodiment of the present application provides a base station system, such as Figure 4 As shown, the system includes: a detection antenna 401, a beamforming comprehensive calculation module 402 and a digital beamformer 403;

[0127] A detection antenna 401 is used to detect infrared radiation from a designated object around the base station;

[0128] The shaped comprehensive calculation module 402 is used to determine the target direction of the designated object relative to the base station according to the direction of the infrared ray radiated by the designated object detected by the detection antenna 401; and determine the target transmission power based on the intensity of the infrared ray radiated by the designated object; wherein the intensity of the infrared ray radiated by the designated object is negatively correlated with the target transmission power;

[0129] The digital beam former 403 is used to adjust the transmission power of the signal in the target direction according to the target transmission power determined by the beamforming comprehensive calculation module 402.

[0130] In the base station system provided in the embodiment of the present application, the base station determines the target direction of the designated object relative to the base station based on the detected infrared direction radiated by the designated object, and determines the target transmission power based on the infrared intensity radiated by the designated object, and adjusts the transmission power in the target direction based on this. Since the infrared intensity is negatively correlated with the target transmission power, and the higher the infrared intensity, the closer the distance between the designated object and the base station, the smaller the transmission power, and the smaller the radiation of the signal to the designated object, that is, in the embodiment of the present application, the closer the person is to the base station, the smaller the transmission power in the direction of the person, and the smaller the radiation of the signal to the human body. Therefore, the embodiment of the present application can reduce the radiation of the signal to the human body according to the distance between the person and the base station.

[0131] Optionally, the detection antenna 401 is specifically used to detect infrared rays radiated by objects around the base station;

[0132] The shaping comprehensive calculation module 402 is also used to filter out infrared rays whose signal frequencies belong to a preset frequency range from the infrared rays detected by the detection antenna 401, and obtain infrared rays radiated by a designated object.

[0133] Optionally, the shape comprehensive calculation module 402 is specifically used for:

[0134] Determine the target intensity level to which the infrared intensity radiated by the specified object belongs;

[0135] Determine a target power level corresponding to the target intensity level according to a preset correspondence between the intensity level and the power level;

[0136] Based on a preset correspondence between the power level and the transmit power, a target transmit power corresponding to the target power level is determined.

[0137] See also Figure 5 The base station system also includes a memory 404, in which the preset corresponding relationship between the intensity level and the power level and the preset corresponding relationship between the power level and the transmission power are stored.

[0138] Optionally, the digital beamformer 403 is specifically configured to:

[0139] The transmission power of the signal in the target direction is adjusted to the target transmission power determined by the shaping comprehensive calculation module 402.

[0140] Optionally, the beamforming comprehensive calculation module 402 is further used to obtain the current transmission power used by the base station and the terminal for communication when there is a terminal communicating with the base station in the target direction, and calculate the weighted sum of the current transmission power and the target transmission power; the digital beamformer 403 is specifically used to adjust the transmission power of the signal in the target direction to the weighted sum calculated by the beamforming comprehensive calculation module 402; or,

[0141] The digital beam former 403 is specifically used to adjust the transmission power of the signal in the target direction to the target transmission power determined by the beamforming comprehensive calculation module 402 when there is no terminal communicating with the base station in the target direction.

[0142] See also Figure 5 , the respective weights of the current transmit power and the target transmit power are stored in the memory 404.

[0143] Optionally, the shape comprehensive calculation module 402 is specifically used for:

[0144] The direction of the infrared light radiated by the detected designated object in the preset coordinate system is taken as the target direction, wherein the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane.

[0145] Optional, such as Figure 5 As shown, the system further includes: an analog beamformer 406 and a signal antenna 407 ; the digital beamformer 403 is connected to the analog beamformer 406 via a radio frequency (RF) chain 405 ; and the RF chain 405 is a control link of the analog beamformer 406 .

[0146] The digital beamformer 403 is specifically used for:

[0147] The analog beamformer 406 is controlled to transmit a signal through the signal antenna 407 in the target direction according to the adjusted transmission power.

[0148] like Figure 5 As shown, there are n RF chains 405 between the digital beamformer 403 and the analog beamformer 406, and one signal is transmitted through each RF chain 405. Figure 5 Only two RF chains 405 are shown. The detection antenna 401 has n sub-antennas. Figure 5 Only two sub-antennas are shown. Signal antenna 407 has n sub-antennas. Figure 5 Only two sub-antennas are shown.

[0149] In the embodiment of the present application, the digital beamformer 403 and the analog beamformer 406 can realize other functions that they can realize in addition to the above functions. For example, the digital beamformer 403 can also adjust the signal-to-noise ratio of the communication link according to the quality of the communication link between the base station and the terminal.

[0150] The present application also provides a base station, such as Figure 6 As shown, it includes a processor 601, a communication interface 602, a memory 603 and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other through the communication bus 604.

[0151] Memory 603, used for storing computer programs;

[0152] The processor 601 is used to implement the method steps in the above method embodiment when executing the program stored in the memory 603.

[0153] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0154] The communication interface is used for communication between the above electronic device and other devices.

[0155] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0156] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0157] In another embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above signal strength adjustment methods are implemented.

[0158] In another embodiment of the present invention, a computer program product including instructions is provided. When the computer program product is run on a computer, the computer executes any signal strength adjustment method in the above embodiments.

[0159] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk Solid State Disk (SSD)), etc.

[0160] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0161] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0162] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A signal strength adjustment method, characterized in that: Applied to a base station, the method comprises: detecting infrared rays radiated by a designated object around the base station; Determine the target direction of the designated object relative to the base station according to the detected direction of the infrared rays radiated by the designated object, including: taking the detected direction of the infrared rays radiated by the designated object in a preset coordinate system as the target direction, wherein the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane; wherein the direction of the infrared rays radiated by the designated object in the preset coordinate system is determined by the following method: when the number of sub-antennas of the detection antenna is the same as the number of sub-antennas of the signal antenna, and in the preset coordinate system, the direction of the sub-antenna of the detection antenna corresponds to the direction of the sub-antenna of the signal antenna one-to-one; when the number of sub-antennas of the detection antenna is different from the number of sub-antennas of the signal antenna, and in the preset coordinate system, the direction of every two sub-antennas of the detection antenna corresponds to the direction of one sub-antenna of the signal antenna; Determine the target transmission power based on the infrared intensity radiated by the designated object; wherein the infrared intensity radiated by the designated object is negatively correlated with the target transmission power; The transmission power of the signal in the target direction is adjusted according to the target transmission power, including: when there is a terminal communicating with the base station in the target direction, obtaining the current transmission power used by the base station to communicate with the terminal, calculating the weighted sum of the current transmission power and the target transmission power, and adjusting the transmission power of the signal in the target direction to the calculated weighted sum; when there is no terminal communicating with the base station in the target direction, adjusting the transmission power of the signal in the target direction to the target transmission power.

2. The method according to claim 1, characterized in that The detecting infrared rays radiated by a designated object around the base station comprises: detecting infrared rays radiated by objects around the base station; Infrared rays whose signal frequencies belong to a preset frequency range are screened out to obtain infrared rays radiated by the designated object.

3. The method according to claim 1 or 2, characterized in that: The step of determining the target transmission power based on the infrared intensity radiated by the designated object includes: Determine the target intensity level to which the infrared intensity radiated by the designated object belongs; Determining a target power level corresponding to the target intensity level according to a preset correspondence between intensity levels and power levels; Based on a preset correspondence between power level and transmit power, a target transmit power corresponding to the target power level is determined.

4. A base station system, characterized in that: include: Detection antenna, beamforming integrated calculation module and digital beamformer; The detection antenna is used to detect infrared rays radiated by a designated object around the base station; The shaped comprehensive calculation module is used to determine the target direction of the designated object relative to the base station according to the direction of the infrared ray radiated by the designated object detected by the detection antenna, including: taking the direction of the infrared ray radiated by the designated object detected in a preset coordinate system as the target direction, wherein the coordinate origin of the preset coordinate system is the center point of the base station or the center point of the signal antenna in the base station, the X-axis and Y-axis of the preset coordinate system are parallel to the horizontal plane, and the Z-axis of the preset coordinate system is perpendicular to the horizontal plane, wherein the direction of the infrared ray radiated by the designated object in the preset coordinate system is determined by the following method: when the number of sub-antennas of the detection antenna is the same as the number of sub-antennas of the signal antenna, and in the preset coordinate system, the direction of the sub-antenna of the detection antenna corresponds to the direction of the sub-antenna of the signal antenna one-to-one; when the number of sub-antennas of the detection antenna is different from the number of sub-antennas of the signal antenna, and in the preset coordinate system, the direction of every two sub-antennas of the detection antenna corresponds to the direction of one sub-antenna of the signal antenna; based on the intensity of the infrared ray radiated by the designated object, determining the target transmission power; wherein the intensity of the infrared ray radiated by the designated object is negatively correlated with the target transmission power; The shaping comprehensive calculation module is further used to obtain the current transmission power used by the base station to communicate with the terminal when there is a terminal communicating with the base station in the target direction, and calculate the weighted sum of the current transmission power and the target transmission power; the digital beamformer is specifically used to adjust the transmission power of the signal in the target direction to the weighted sum calculated by the shaping comprehensive calculation module; The digital beamformer is used to adjust the transmission power of the signal in the target direction according to the target transmission power determined by the beamforming comprehensive calculation module, including: when there is no terminal communicating with the base station in the target direction, adjusting the transmission power of the signal in the target direction to the target transmission power determined by the beamforming comprehensive calculation module.

5. The system according to claim 4, characterized in that: The detection antenna is specifically used to detect infrared rays radiated by objects around the base station; The shaped comprehensive calculation module is also used to filter out infrared rays whose signal frequencies belong to a preset frequency range from the infrared rays detected by the detection antenna, and obtain the infrared rays radiated by the designated object.

6. The system according to claim 4 or 5, characterized in that: The shaping comprehensive calculation module is specifically used for: Determine the target intensity level to which the infrared intensity radiated by the designated object belongs; Determining a target power level corresponding to the target intensity level according to a preset correspondence between intensity levels and power levels; Based on a preset correspondence between power level and transmit power, a target transmit power corresponding to the target power level is determined.

7. The system according to claim 4, characterized in that The system further comprises: an analog beamformer and a signal antenna; the digital beamformer is connected to the analog beamformer via a radio frequency (RF) chain; the digital beamformer is specifically used for: The analog beamformer is controlled to transmit a signal through the signal antenna in the target direction according to the adjusted transmission power.

8. A base station, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; Memory, used to store computer programs; A processor, for implementing the steps of any method described in claims 1-3 when executing a program stored in a memory.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of any one of the methods of claims 1-3 are implemented.

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