Effective omnidirectional radiation power control method, device and storage medium

Abstract

The embodiments of the present application provide an effective isotropically radiated power control method, apparatus, and storage medium, including: a base station sends a measurement request to a user equipment; the base station receives the beam ID, beam level value, and location information corresponding to the user equipment sent by the user equipment, and determines the base station's downtilt angle based on the base station's location information, the beam ID, beam level value, and location information corresponding to the user equipment; the base station determines an air beam set within a preset range; for any beam A in the air beam set, if the initial effective isotropically radiated power of beam A is greater than the preset threshold, the base station adjusts the initial effective isotropically radiated power of beam A to obtain the target effective isotropically radiated power of beam A. Through the above means, the purpose of adaptively adjusting the effective isotropically radiated power (EIRP) of the beam can be achieved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device and storage medium for controlling effective omnidirectional radiation power. Background Art

[0002] The 2019 World Radiocommunication Conference (WRC-19) organized by the International Telecommunication Union (ITU) defined new terms for 5G high-frequency bands: to prevent base stations from interfering with geostationary satellites in orbit, the maximum effective isotropic radiated power (EIRP) of base stations in the 24.24-27.5 GHz frequency band must be less than 30 dBW per 200 MHz bandwidth per beam.

[0003] EIRP, also known as Equivalent Isotropic Radiated Power (EIRP), is defined as the product of the power supplied to the antenna by a radio transmitter and the absolute gain of the antenna in a given direction.

[0004] Existing technologies use hardware array arrangement to reduce the EIRP energy in a specific direction. The beam shape is related to the physical antenna array layout (e.g., the horizontal and vertical spacing between arrays, and the number of arrays). Existing technologies reduce the EIRP of the grating lobes in the air by changing the physical antenna array arrangement. However, this only suppresses the grating lobes, not the main lobe. According to typical antenna designs, when the antenna downtilt angle is less than 8 degrees, there is a risk that the mainlobe beam EIRP energy will exceed the WRC19 standard. Furthermore, the suppression capabilities of the main and grating lobes are determined by the hardware and cannot be adaptively adjusted, such as with changes in the downtilt angle.

[0005] Electromagnetic field (EMF) power control: To prevent electromagnetic fields from harming human health, it is necessary to control the total transmit power radiated from base stations to the human body. Existing technologies divide space into different grids, then calculate the total transmit power for each grid at a fixed period. If the transmit power exceeds a certain threshold, the power of the grid exceeding the threshold is reduced. However, the corresponding constraint of EMF power control is ground coverage, which cannot solve the WRC19 constraint on air grating lobe energy. Furthermore, EMF requires the use of offline tools to import base station operating parameters, and does not support online automatic calculation. This leads to a high possibility of manual measurement errors and high costs. Summary of the Invention

[0006] The present application discloses a method, device and storage medium for controlling effective isotropic radiation power, which can realize adaptive control of effective isotropic radiation power.

[0007] In the first aspect, an embodiment of the present application provides an effective isotropic radiated power control method, including: a base station sends a measurement request to a user equipment, the measurement request being used to instruct the user equipment to measure and send a beam ID, a beam level value and a location information corresponding to the user equipment; the base station respectively receives the beam ID, the beam level value and the location information corresponding to the user equipment sent by the user equipment, and determines the downtilt angle of the base station according to the location information of the base station, the beam ID, the beam level value and the location information corresponding to the user equipment; the base station determines an air beam set within a preset range according to the downtilt angle of the base station; for any beam A in the air beam set, the base station obtains the initial effective isotropic radiated power of the beam A according to the initial beam antenna gain and the initial transmit power of the beam A; if the initial effective isotropic radiated power of the beam A is greater than a preset threshold, the base station adjusts the initial effective isotropic radiated power of the beam A according to the preset threshold, the initial beam antenna gain and the initial transmit power of the beam A to obtain the target effective isotropic radiated power of the beam A.

[0008] Based on user equipment measurement results, this solution adjusts the beam's antenna gain and / or transmit power to ensure the adjusted EIRP does not exceed a preset threshold when the beam's EIRP exceeds a preset threshold. This achieves adaptive adjustment of the beam's EIRP.

[0009] On the other hand, this solution enables the base station to automatically measure the downtilt angle through an algorithm by having the user equipment report a measurement message, thereby reducing the cost of manual measurement input.

[0010] This solution adaptively controls EIRP based on the different tilt angles of base stations, minimizing coverage degradation for terrestrial users while meeting EIRP thresholds. Furthermore, this solution allows for precise individual control of each beam, achieving a minimum control accuracy of 0.1dBm.

[0011] The location information of the user equipment may be coordinates, longitude and latitude, etc., or grid information, etc.

[0012] The target effective isotropic radiated power of beam A is not greater than the preset threshold.

[0013] In which, the base station sends the measurement request to M user equipments, M is a positive integer, and the base station determines the downtilt angle of the base station according to the location information of the base station, the beam ID corresponding to the user equipment, the beam level value and the location information, including: the base station determines the beam arrival angle corresponding to each user equipment according to the location information of the base station, the location information of each user equipment in the M user equipments and the beam level value; the base station determines the reference beam ID of each user equipment according to the beam ID and the beam level value corresponding to each user equipment, and determines the angle corresponding to the reference beam ID of each user equipment according to the reference beam ID of each user equipment; the base station obtains the initial downtilt angles of the M base stations according to the beam arrival angle corresponding to each user equipment in the M user equipments and the angle corresponding to the reference beam ID of each user equipment; the base station determines the downtilt angle of the base station according to the M initial downtilt angles.

[0014] In which, the base station adjusts the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain of beam A and the initial transmit power to obtain the target effective isotropic radiated power of beam A, including: the base station obtains a first value, wherein the first value is the difference between the preset threshold and the initial effective isotropic radiated power of beam A; the base station adjusts the initial beam antenna gain of beam A to obtain a reference beam antenna gain of beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain; the base station obtains a second value based on the initial beam antenna gain and the reference beam antenna gain; if the second value is not less than the first value, the base station obtains the target effective isotropic radiated power of beam A based on the reference beam antenna gain of beam A and the initial transmit power.

[0015] If the second value is less than the first value, the base station determines the reference transmit power of beam A based on the first value, the second value and the initial transmit power of beam A; the base station obtains the target effective isotropic radiated power of beam A based on the reference beam antenna gain and reference transmit power of beam A.

[0016] In a second aspect, an embodiment of the present application provides an effective isotropic radiation power control device, comprising: a sending module for sending a measurement request to a user equipment, the measurement request being used to instruct the user equipment to measure and send the beam ID, beam level value and location information corresponding to the user equipment; a receiving module for respectively receiving the beam ID, beam level value and location information corresponding to the user equipment sent by the user equipment, and determining the downtilt angle of the device according to the location information of the device, the beam ID, beam level value and location information corresponding to the user equipment; a determination module for determining an air beam set within a preset range according to the downtilt angle of the device; an acquisition module for obtaining the initial effective isotropic radiation power of beam A for any beam A in the air beam set according to the initial beam antenna gain and initial transmission power of beam A; an adjustment module for adjusting the initial effective isotropic radiation power of beam A according to the preset threshold, the initial beam antenna gain and initial transmission power of beam A if the initial effective isotropic radiation power of beam A is greater than a preset threshold, so as to obtain the target effective isotropic radiation power of beam A.

[0017] The target effective isotropic radiated power of beam A is not greater than the preset threshold.

[0018] Among them, the sending module is specifically used to send the measurement request to M user devices, M is a positive integer, and the receiving module is specifically used to: determine the beam arrival angle corresponding to each user device according to the location information of the device, the location information of each user device in the M user devices, and the beam level value; determine the reference beam ID of each user device according to the beam ID and the beam level value corresponding to each user device, and determine the angle corresponding to the reference beam ID of each user device according to the reference beam ID of each user device; obtain the initial downtilt angles of the M devices according to the beam arrival angle corresponding to each user device in the M user devices and the angle corresponding to the reference beam ID of each user device; determine the downtilt angle of the device according to the M initial downtilt angles.

[0019] Among them, the adjustment module is specifically used to: obtain a first value, wherein the first value is the difference between the preset threshold and the initial effective isotropic radiated power of the beam A; adjust the initial beam antenna gain of the beam A to obtain the reference beam antenna gain of the beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain; obtain a second value based on the initial beam antenna gain and the reference beam antenna gain; if the second value is not less than the first value, obtain the target effective isotropic radiated power of the beam A based on the reference beam antenna gain of the beam A and the initial transmit power.

[0020] The device also includes: if the second value is less than the first value, the adjustment module is specifically used to: determine the reference transmit power of beam A based on the first value, the second value and the initial transmit power of beam A; and obtain the target effective isotropic radiated power of beam A based on the reference beam antenna gain and reference transmit power of beam A.

[0021] In a third aspect, a control device is provided that can implement the control method described in the first aspect. For example, the control device can be a chip (such as a baseband chip or a communication chip) or a terminal device. The method can be implemented through software, hardware, or hardware executing corresponding software.

[0022] In one possible implementation, the control device includes a processor and a memory; the processor is configured to support the device in executing the corresponding functions of the control method described above. The memory is coupled to the processor and stores the necessary programs (instructions) and / or data for the device. Optionally, the control device may also include a communication interface to support communication between the device and other network elements.

[0023] In another possible implementation, the control device may include a unit module for executing corresponding actions in the above method.

[0024] In another possible implementation, a processor and a transceiver are coupled to the transceiver. The processor is configured to execute a computer program or instruction to control the transceiver to receive and send information. When the processor executes the computer program or instruction, the processor is further configured to implement the above method. The transceiver may be a transceiver, a transceiver circuit, or an input / output interface. When the control device is a chip, the transceiver may be a transceiver circuit or an input / output interface.

[0025] When the control device is a chip, the sending unit may be an output unit, such as an output circuit or a communication interface; the receiving unit may be an input unit, such as an input circuit or a communication interface. When the control device is a network device, the sending unit may be a transmitter or a transmitter; and the receiving unit may be a receiver or a receiver.

[0026] In a fourth aspect, the present application provides a computer storage medium comprising computer instructions, which, when executed on an electronic device, enables the electronic device to execute a method as provided in any possible implementation of the first aspect.

[0027] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer, enables the computer to execute a method provided in any possible implementation of the first aspect.

[0028] It is understandable that the apparatus described in the second aspect, the control apparatus described in the third aspect, the computer storage medium described in the fourth aspect, or the computer program product described in the fifth aspect are all used to execute any of the methods provided in the first aspect. Therefore, the beneficial effects that can be achieved can be referenced to the beneficial effects of the corresponding methods and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following is an introduction to the drawings used in the embodiments of this application.

[0030] Figure 1a This is a schematic diagram of a scenario of effective omnidirectional radiation power control provided by an embodiment of the present application;

[0031] Figure 1b This is a flow chart of an effective omnidirectional radiation power control method provided by an embodiment of the present application;

[0032] Figure 2 is a schematic diagram of calculating the beam arrival angle provided in an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of calculating a downtilt angle provided in an embodiment of the present application;

[0034] Figure 4 is a schematic diagram of a beam broadening method provided in an embodiment of the present application;

[0035] Figure 5 This is a schematic structural diagram of an effective omnidirectional radiation power control device provided in an embodiment of the present application;

[0036] Figure 6 A schematic structural diagram of another effective omnidirectional radiation power control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The following describes the embodiments of the present application in conjunction with the accompanying drawings. The terms used in the implementation methods of the embodiments of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0038] Reference Figure 1a The above is a schematic diagram of an effective omnidirectional radiation power control scenario provided by an embodiment of the present application. Figure 1aAs shown in the figure, the dashed box shows the beam emitted by the base station before effective isotropically radiated power control is implemented. At this time, the beam is partially directed toward the sky and partially toward the ground. After effective isotropically radiated power control is implemented, as shown by the beam not in the dashed box in the figure, the beam is concentrated toward the ground. This control method can increase the effective isotropically radiated power.

[0039] The specific implementation of this plan will be introduced below.

[0040] Reference Figure 1b FIG. 1 is a flow chart of a method for controlling effective isotropically radiated power provided in an embodiment of the present application. The method for controlling effective isotropically radiated power includes steps 101-105, which are as follows:

[0041] 101. A base station sends a measurement request to a user equipment, where the measurement request is used to instruct the user equipment to measure and send a beam ID, a beam level value, and location information corresponding to the user equipment.

[0042] In which, the base station can send measurement requests to multiple user devices such as mobile phones. For example, the base station sends the measurement request to M user devices, where M is a positive integer. The measurement request is used to instruct each of the M user devices to measure separately and send the beam ID, beam level value and location information corresponding to each user device to the base station.

[0043] Specifically, the base station sends a CSI measurement control message (CSI-ReportConfig->reportQuantity->cri-RSRP) to notify the UE to measure the beam ID and beam level value; after the UE completes the measurement, it reports the measurement results through the PUSCH or PUCCH channel, and the base station parses the results at the corresponding channel position.

[0044] The location information of each user equipment may be the longitude and latitude of each user equipment.

[0045] 102. The base station receives the beam ID, beam level value, and location information corresponding to the user equipment sent by the user equipment, and determines a downtilt angle of the base station according to the location information of the base station, the beam ID, beam level value, and location information corresponding to the user equipment;

[0046] Among them, the base station respectively receives the beam ID, beam level value and location information corresponding to the user equipment sent by the user equipment, and determines the downtilt angle of the base station according to the location information of the base station, the beam ID, beam level value and location information corresponding to the user equipment.

[0047] When there are multiple user devices, the M user devices each measure and send the beam ID, beam level, and location of each user device to the base station. The base station determines the downtilt angle of the base station based on the received information and the location of the base station.

[0048] Specifically, the base station determines the downtilt angle of the base station according to the position of the base station, the beam ID corresponding to each user equipment in the M user equipments, the beam level value, and the position of each user equipment, including 1021-1024, as follows:

[0049] 1021. The base station determines a beam arrival angle corresponding to each user equipment according to a position of the base station, a position of each user equipment among the M user equipments, and a beam level value;

[0050] Each antenna element receives a signal in a certain direction, and a signal phase difference φ is generated between the antenna elements. Based on the phase difference and the antenna element spacing d, the angle between the UE and the antenna can be calculated, which is the beam arrival angle θ. Figure 2 As shown, the base station determines the beam arrival angle corresponding to each user equipment according to the following formula:

[0051] φ=d×sinθ;

[0052] Where φ is the phase difference, which can be measured by the base station; d is the fixed value of the base station antenna hardware; and θ is the beam arrival angle corresponding to the user equipment.

[0053] Furthermore, before obtaining the beam arrival angle corresponding to the user equipment, the method further includes:

[0054] Determine whether the M user equipments are LOS users.

[0055] LOS stands for line of sight, which refers to the line of sight transmission of wireless signals. In other words, under line of sight conditions, wireless signals propagate in a straight line between the transmitter and receiver without obstruction.

[0056] This can be determined by the following methods:

[0057] First, obtain the path loss of each user device;

[0058] Then confirm whether the difference between the path loss of the user equipment and the theoretical path loss is less than a preset value;

[0059] If it is less than a preset value, it is determined that the user equipment is a LOS user.

[0060] Wherein, the path loss of the user equipment = transmit power + transmit antenna gain + receive antenna gain - beam level value;

[0061] Theoretical path loss = 32.4 + 20*log(d) + 20*log(f), where d represents the 3D distance (m) between the base station and the user equipment. The distance between the two points can be calculated using their latitude, longitude, and altitude. The base station's latitude, longitude, and altitude can be obtained using GPS. f represents the frequency (GHz). For example, the preset value can be 1 dB.

[0062] 1022. The base station determines a reference beam ID for each user equipment according to the beam ID and the beam level value corresponding to each user equipment, and determines an angle corresponding to the reference beam ID for each user equipment according to the reference beam ID of each user equipment.

[0063] The reference beam may be an optimal beam.

[0064] The base station uses the measurement results reported by the UE to select CSI beam ID1 and the next-best beam ID2 with the optimal level in the vertical plane of the antenna pattern. It also calculates the optimal beam ID for actual use through interpolation, as shown in Table 1.

[0065] Table 1

[0066]

[0067] The base station pre-stores an optimal transmit / receive beam table, as shown in Table 2, which is used to determine the UE's transmit beam ID pair and angle α. The optimal transmit / receive beam table is calculated based on the known terminal beam pattern and the base station beam pattern and stored in advance in the base station. It can also be obtained through real-time calculation, which is not specifically limited here.

[0068] Table 2

[0069]

[0070] 1023. The base station obtains initial downtilt angles of the M base stations according to a beam arrival angle corresponding to each user equipment in the M user equipments and an angle corresponding to a reference beam ID of each user equipment.

[0071] The base station calculates the downtilt angle β by the beam arrival angle, i.e., the AOA arrival angle + the elevation angle of the strongest beam ID received by the UE, where β = 90° - α - θ; Figure 3 shown.

[0072] Where α is the angle corresponding to the beam ID when the UE is placed vertically (the angle corresponding to each beam of the UE must be stored in the base station in advance); if the angle is not vertical during measurement, the corresponding tilt angle delta value is added.

[0073] 1024. The base station determines a downtilt angle of the base station according to the M initial downtilt angles.

[0074] To reduce the error caused by a single UE, the base station can measure the downtilt angle using multiple UEs, such as three or more, and then take the average of the downtilt angles. This approach makes the measurement results more accurate.

[0075] 103. The base station determines an air beam set within a preset range according to a downtilt angle of the base station;

[0076] The preset range may be, for example, the angle range required by WRC19: pointing to a synchronous satellite within a range of + / - 7.5 degrees, or any other preset range.

[0077] After measuring the downtilt angle, the base station can obtain the interference beam set of all channels that fall within the angle range of interference to the satellite based on the beam table pre-stored in the base station.

[0078] The base station's antenna hardware and beamforming weights determine the beam shape and vertical orientation. Combined with the determined downtilt angle, the actual vertical orientation angle of each beam can be determined.

[0079] By determining the relationship between the constrained ranges of the different latitudes and elevation angles at which the base station is located, the angle of interference with the satellite at the latitude at which the base station is deployed can be determined. All beams within this angle (elevation) range whose beam antenna gain is greater than 0 are considered to be beams with potential interference.

[0080] For example, if the base station is located at 31 degrees north latitude, the vertical pointing range (elevation angle) of the beam with potential interference needs to be 0 to 65 degrees.

[0081] 104. For any beam A in the air beam set, the base station obtains, according to the initial beam antenna gain and initial transmit power of the beam A, the initial effective isotropic radiated power of the beam A;

[0082] Among them, effective isotropic radiated power EIRP (unit: dBm) = beam antenna gain (unit: dBi) + beam transmission power (unit: dBm).

[0083] 105. If the initial effective isotropic radiation power of beam A is greater than a preset threshold, the base station adjusts the initial effective isotropic radiation power of beam A according to the preset threshold, the initial beam antenna gain of beam A and the initial transmission power to obtain the target effective isotropic radiation power of beam A.

[0084] The target effective isotropic radiated power of beam A is not greater than the preset threshold.

[0085] The base station adjusts the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain and the initial transmit power of beam A to obtain the target effective isotropic radiated power of beam A, including:

[0086] The base station obtains a first value, where the first value is a difference between the preset threshold and the initial effective isotropic radiated power of the beam A;

[0087] The base station adjusts the initial beam antenna gain of the beam A to obtain a reference beam antenna gain of the beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain;

[0088] The base station obtains a second value according to the initial beam antenna gain and the reference beam antenna gain;

[0089] If the second value is not less than the first value, the base station obtains the target effective isotropic radiated power of the beam A according to the reference beam antenna gain of the beam A and the initial transmit power.

[0090] The above-mentioned first value can be the difference between the preset threshold and the initial effective isotropic radiated power of beam A.

[0091] The base station adjusts the beam antenna gain of beam A and then obtains a second value based on the initial beam antenna gain and the reference beam antenna gain. The second value may be a difference between the initial beam antenna gain and the reference beam antenna gain. The base station determines whether the second value is not less than the first value. If the second value is not less than the first value, the base station stops adjusting the initial effective isotropically radiated power of beam A.

[0092] If the second value is less than the first value, the base station determines the reference transmit power of beam A based on the first value, the second value and the initial transmit power of beam A; the base station obtains the target effective isotropic radiated power of beam A based on the reference beam antenna gain and reference transmit power of beam A.

[0093] The base station transmits beam A according to the reference transmit power of beam A.

[0094] The base station determines the reference transmit power of beam A based on the first value, the second value, and the initial transmit power of beam A. For example, the base station may obtain the difference between the first value and the second value, and then determine the reference transmit power of beam A based on the difference and the initial transmit power of beam A. The reference transmit power of beam A can be obtained by subtracting the difference from the initial transmit power of beam A. The above difference is a positive number. For example, each channel of SSB / CSIRS / TRS / PDCCH / PDSCH is controlled according to the above method to generate a set of interference beams that need to be reduced in power, which serves as input for subsequent beam-level EIRP control.

[0095] Transmit power adjustment can include adjusting the transmit power of static beams and dynamic beams. Static beams specifically refer to SSB, TRS, and CSI channel beams, which are determined by base station configuration and do not change with the environment or UE movement. Dynamic beams specifically refer to PDCCH and PDSCH channel beams, which not only vary based on base station configuration but also change in real time based on the channel environment measured by the UE.

[0096] The base station can send the power reduction value calculated for each timeslot to the baseband, which then passes it to the AAU's power amplifier module to implement the fallback value for adaptive power control. The BBU can be responsible for calculating the power reduction, weights, and downtilt angles for each beam. The AAU can be responsible for executing transmit power and beam transmission processes.

[0097] In other words, this solution prioritizes adjusting the beam's antenna gain when the effective isotropically radiated power (EIRP) exceeds a preset threshold. If the adjusted gain remains within the threshold, adjustment ceases. If the adjusted gain still exceeds the threshold, the beam's transmit power is adjusted. This approach achieves adaptive adjustment of the beam's effective isotropically radiated power (EIRP).

[0098] Based on user equipment measurement results, this solution adjusts the beam's antenna gain and / or transmit power to ensure the adjusted EIRP does not exceed a preset threshold when the beam's EIRP exceeds a preset threshold. This achieves adaptive adjustment of the beam's EIRP.

[0099] On the other hand, this solution enables the base station to automatically measure the downtilt angle through an algorithm by having the user equipment report a measurement message, thereby reducing the cost of manual measurement input.

[0100] This solution adaptively controls EIRP based on the different tilt angles of base stations, minimizing coverage degradation for terrestrial users while meeting EIRP thresholds. Furthermore, this solution allows for precise individual control of each beam, achieving a minimum control accuracy of 0.1dBm.

[0101] The following is a method of reducing the beam antenna gain provided in an embodiment of the present application.

[0102] Among them, the beam antenna gain control is performed according to the beam level, channel, and main grating lobe. For example, according to the implementation combination shown in Table 3 below, the goal of reducing the air EIRP is achieved.

[0103] Table 3

[0104]

[0105] The base station may determine whether the angle corresponding to beam A corresponds to a grating lobe; if so, the base station determines the reference beam antenna gain for beam A according to Technical Implementation 2 and Technical Implementation 1 as shown in Table 3. 2 & 1 indicate that two technologies are supported and executed in this order. For example, Technical Implementation 2 is executed first. If the calculated value does not meet the EIRP threshold requirement, Technical Implementation 1 is executed.

[0106] If the angle corresponding to the beam A corresponds to the main lobe, if the base station determines that the beam is a static beam, the reference beam antenna gain of the beam A is determined according to the method of technical implementation 1; if the base station determines that the beam is a dynamic beam, the reference beam antenna gain of the beam A is determined according to the methods of technical implementation 1 and technical implementation 3.

[0107] Among them, technical implementation 1 refers to reducing antenna gain by using beam broadening. Figure 4 As shown, disabling some TRX arrays during beam transmission can achieve beam widening. Beam widening reduces the antenna gain, thereby indirectly reducing EIRP (for example, a vertical widening of 1 times reduces beam gain by 3dB).

[0108] Technical Implementation 2 involves reducing antenna gain using static beam nulling. If the calculated antenna gain at the air angle plus the dispatching power exceeds the WRC19 threshold, the total EIRP can be indirectly reduced by suppressing the antenna gain at that beam's air angle (static beam nulling). Static beam nulling uses an amplitude modulation and phase modulation cancellation algorithm to find a cancellation pattern function that forms a null in the specified direction.

[0109] Among them, the array element weight is at the peak beam weight a n Based on the gain a suppression amount p n , as shown below:

[0110] w n =a n +p n ;

[0111] w n represents the final antenna gain, a n represents the basic antenna gain, p n Represents a cancellation function.

[0112] Antenna pattern gain after cancellation algorithm:

[0113] Antenna pattern gain

[0114] Where N is the number of TRXs, u is the multiple of the array spacing relative to the wavelength, u = d / λ, d is the array spacing, and λ is the wavelength.

[0115] Technical Implementation 3 uses dynamic beam zero forcing to reduce antenna gain. Similar to Technical Implementation 2, this also applies zero forcing in a specific direction. However, it uses real-time UE-reported measurement values (primarily the weights of UE PMI / SRS measurement feedback) for beam zero forcing, making it more adaptable to changes in the channel environment.

[0116] The PMI measurement process includes:

[0117] Step 1: The base station notifies the UE to perform measurement through the CSI measurement control message (CSI-ReportConfig->reportQuantity->cri-RI-PMI-CQI);

[0118] Step 2: After measuring the CSI, the UE reports the measurement results in the PUSCH channel;

[0119] Step 3: The base station selects the PMI weight based on the PUSCH analysis and measurement results;

[0120] Step 4: According to the weights used for each beam, perform zero-forcing operation according to the technology to implement 2 static beam zero-forcing.

[0121] The SRS measurement process may include:

[0122] Step 1: The base station instructs the UE to send SRS symbols at a certain position (related measurement parameters SRS-Config) through air interface information elements;

[0123] Step 2: UE sends a signal according to the location indicated by the base station;

[0124] Step 3: The base station measures the real-time channel quality of the SRS symbols at these locations and obtains the channel estimation matrix; and obtains the beamforming weights through singular value SVD decomposition;

[0125] Step 4: Then perform zero-forcing operation according to the technology to achieve 2 static beam zero-forcing.

[0126] This solution uses beam broadening, static beam zero forcing, and dynamic beam zero forcing to precisely control antenna gain for each beam, thereby indirectly controlling EIRP with an accuracy of 0.1dBm. This precise beam-level antenna gain control effectively controls EIRP.

[0127] The embodiment of the present application also provides an effective omnidirectional radiation power control device, such as Figure 5 As shown, it includes a sending module 501, a receiving module 502, a determining module 503, a judging module 504 and an adjusting module 505, which are specifically as follows:

[0128] A sending module 501 is configured to send a measurement request to a user equipment, where the measurement request is used to instruct the user equipment to measure and send a beam ID, a beam level value, and location information corresponding to the user equipment;

[0129] a receiving module 502, configured to respectively receive a beam ID, a beam level value, and location information corresponding to the user equipment sent by the user equipment, and determine a downtilt angle of the device according to the location information of the device, the beam ID, the beam level value, and the location information corresponding to the user equipment;

[0130] a determination module 503, configured to determine an air beam set within a preset range according to a downtilt angle of the device;

[0131] An acquisition module 504 is configured to obtain, for any beam A in the air beam set, an initial effective isotropically radiated power of the beam A according to the initial beam antenna gain and initial transmit power of the beam A;

[0132] The adjustment module 505 is used to adjust the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain and the initial transmission power of beam A if the initial effective isotropic radiated power of beam A is greater than a preset threshold, so as to obtain the target effective isotropic radiated power of beam A.

[0133] The target effective isotropic radiated power of beam A is not greater than the preset threshold.

[0134] The sending module 501 is specifically configured to send the measurement request to M user equipments, where M is a positive integer. The receiving module 502 is specifically configured to:

[0135] Determine a beam arrival angle corresponding to each user equipment according to the location information of the device, the location information of each user equipment among the M user equipments, and a beam level value;

[0136] Determine a reference beam ID for each user equipment according to the beam ID and the beam level value corresponding to each user equipment, and determine an angle corresponding to the reference beam ID for each user equipment according to the reference beam ID of each user equipment;

[0137] Obtaining initial downtilt angles of the M devices according to a beam arrival angle corresponding to each user equipment in the M user equipment and an angle corresponding to a reference beam ID of each user equipment;

[0138] The downtilt angle of the device is determined according to the M initial downtilt angles.

[0139] The adjustment module 505 is specifically configured to:

[0140] Obtaining a first value, wherein the first value is a difference between the preset threshold and the initial effective isotropic radiated power of beam A;

[0141] Adjusting an initial beam antenna gain of the beam A to obtain a reference beam antenna gain of the beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain;

[0142] Obtaining a second value according to the initial beam antenna gain and the reference beam antenna gain;

[0143] If the second value is not less than the first value, the target effective isotropic radiated power of beam A is obtained according to the reference beam antenna gain of beam A and the initial transmit power.

[0144] If the second value is less than the first value, the adjustment module is specifically configured to: determine the reference transmit power of beam A according to the first value, the second value, and the initial transmit power of beam A;

[0145] The target effective isotropic radiated power of beam A is obtained according to the reference beam antenna gain and the reference transmit power of beam A.

[0146] Reference Figure 6 , is a schematic diagram of the structure of another effective omnidirectional radiation power control device provided in an embodiment of the present application. Based on the same concept of the control method in the above embodiment, as Figure 6 As shown, the embodiment of the present application also provides a control device 600, which can be applied to the above Figure 1b In the control method shown in FIG. 6 , the control device 600 includes:

[0147] The sending unit 61 is used to send a measurement request to the user equipment, where the measurement request is used to instruct the user equipment to measure and send the beam ID, beam level value and location information corresponding to the user equipment.

[0148] The receiving unit 62 is configured to respectively receive the beam ID, beam level value, and location information corresponding to the user equipment sent by the user equipment.

[0149] The processing unit 63 is used to determine the downtilt angle of the device according to the location information of the device, the beam ID corresponding to the user equipment, the beam level value and the location information; determine the air beam set within a preset range according to the downtilt angle of the device; for any beam A in the air beam set, obtain the initial effective isotropic radiated power of the beam A according to the initial beam antenna gain and the initial transmit power of the beam A; if the initial effective isotropic radiated power of the beam A is greater than a preset threshold, adjust the initial effective isotropic radiated power of the beam A according to the preset threshold, the initial beam antenna gain and the initial transmit power of the beam A to obtain the target effective isotropic radiated power of the beam A.

[0150] The present application also provides a control device for executing the above control method. Part or all of the above control method can be implemented by hardware or software.

[0151] Optionally, the control device may be a chip or an integrated circuit in specific implementation.

[0152] Optionally, when part or all of the control methods of the above embodiments are implemented through software, the control device includes: a memory for storing programs; a processor for executing the programs stored in the memory, and when the programs are executed, the communication device can implement the communication methods provided by the above embodiments.

[0153] Optionally, the above-mentioned memory may be a physically independent unit or may be integrated with the processor.

[0154] Optionally, when part or all of the control methods of the above embodiments are implemented via software, the control device may include only a processor. The memory for storing the program is located outside the control device, and the processor is connected to the memory via circuits / wires to read and execute the program stored in the memory.

[0155] The processor may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and a NP.

[0156] The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0157] The memory may include volatile memory, such as random-access memory (RAM); the memory may also include non-volatile memory, such as flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory may also include a combination of the above types of memory.

[0158] An embodiment of the present application also provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a computer or a processor, the computer or processor executes one or more steps in any of the above methods.

[0159] The present application also provides a computer program product comprising instructions, which, when executed on a computer or processor, causes the computer or processor to execute one or more steps in any of the above methods.

[0160] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using 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 application 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 via the computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) method. 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 drive (SSD)).

[0161] Those skilled in the art will appreciate that all or part of the process steps in the above-described method embodiments can be implemented by a computer program instructing the relevant hardware. The program can be stored in a computer-readable storage medium, and when executed, the program can include the process steps in the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

[0162] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for controlling effective omnidirectional radiated power, characterized in that: include: The base station sends a measurement request to the user equipment, where the measurement request is used to instruct the user equipment to measure and send a beam ID, a beam level value, and location information corresponding to the user equipment; The base station receives, respectively, the beam ID, the beam level value, and the location information corresponding to the user equipment sent by the user equipment, and determines a downtilt angle of the base station according to the location information of the base station, the beam ID, the beam level value, and the location information corresponding to the user equipment; The base station determines an air beam set within a preset range according to a downtilt angle of the base station; For any beam A in the air beam set, the base station obtains the initial effective isotropic radiated power of the beam A according to the initial beam antenna gain and initial transmit power of the beam A; If the initial effective isotropic radiated power of beam A is greater than a preset threshold, the base station adjusts the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain of beam A and the initial transmit power to obtain the target effective isotropic radiated power of beam A.

2. The method according to claim 1, characterized in that The target effective isotropic radiated power of beam A is not greater than the preset threshold.

3. The method according to claim 1 or 2, characterized in that The base station sends the measurement request to M user equipments, where M is a positive integer. The base station determines the downtilt angle of the base station according to the location information of the base station, the beam ID corresponding to the user equipment, the beam level value, and the location information, including: The base station determines, according to the location information of the base station, the location information of each user equipment among the M user equipments, and the beam level value, a beam arrival angle corresponding to each user equipment; The base station determines, according to the beam ID and the beam level value corresponding to each user equipment, a reference beam ID of each user equipment, and determines, according to the reference beam ID of each user equipment, an angle corresponding to the reference beam ID of each user equipment; The base station obtains, according to a beam arrival angle corresponding to each user equipment in the M user equipments and an angle corresponding to a reference beam ID of each user equipment, M initial downtilt angles of the base station; The base station determines a downtilt angle of the base station according to the M initial downtilt angles.

4. The method according to claim 1 or 2, characterized in that The base station adjusts the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain of beam A, and the initial transmit power to obtain a target effective isotropic radiated power of beam A, including: The base station obtains a first value, where the first value is a difference between the preset threshold and the initial effective isotropic radiated power of the beam A; The base station adjusts the initial beam antenna gain of the beam A to obtain a reference beam antenna gain of the beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain; The base station obtains a second value according to the initial beam antenna gain and the reference beam antenna gain; If the second value is not less than the first value, the base station obtains the target effective isotropic radiated power of the beam A according to the reference beam antenna gain of the beam A and the initial transmit power.

5. The method according to claim 4, characterized in that The method further comprises: If the second value is less than the first value, the base station determines the reference transmit power of the beam A according to the first value, the second value, and the initial transmit power of the beam A; The base station obtains the target effective isotropic radiated power of beam A according to the reference beam antenna gain and reference transmit power of beam A.

6. An effective omnidirectional radiated power control device, characterized in that: include: a sending module, configured to send a measurement request to a user equipment, wherein the measurement request is used to instruct the user equipment to measure and send a beam ID, a beam level value, and location information corresponding to the user equipment; a receiving module, configured to respectively receive a beam ID, a beam level value, and location information corresponding to the user equipment sent by the user equipment, and determine a downtilt angle of the device according to the location information of the device, the beam ID, the beam level value, and the location information corresponding to the user equipment; a determination module, configured to determine an air beam set within a preset range according to a downtilt angle of the device; an acquisition module, configured to obtain, for any beam A in the air beam set, an initial effective isotropically radiated power of the beam A according to the initial beam antenna gain and the initial transmit power of the beam A; An adjustment module is used to adjust the initial effective isotropic radiated power of beam A according to the preset threshold, the initial beam antenna gain and the initial transmit power of beam A if the initial effective isotropic radiated power of beam A is greater than a preset threshold, so as to obtain the target effective isotropic radiated power of beam A.

7. The device according to claim 6, characterized in that The target effective isotropic radiated power of beam A is not greater than the preset threshold.

8. The device according to claim 6 or 7, characterized in that The sending module is specifically configured to send the measurement request to M user equipments, where M is a positive integer. The receiving module is specifically configured to: Determine a beam arrival angle corresponding to each user equipment according to the location information of the device, the location information of each user equipment among the M user equipments, and a beam level value; Determine a reference beam ID for each user equipment according to the beam ID and the beam level value corresponding to each user equipment, and determine an angle corresponding to the reference beam ID for each user equipment according to the reference beam ID of each user equipment; Obtaining M initial downtilt angles of the device according to a beam arrival angle corresponding to each user equipment in the M user equipments and an angle corresponding to a reference beam ID of each user equipment; The downtilt angle of the device is determined according to the M initial downtilt angles.

9. The device according to claim 6 or 7, characterized in that The adjustment module is specifically used to: Obtaining a first value, wherein the first value is a difference between the preset threshold and the initial effective isotropic radiated power of beam A; Adjusting an initial beam antenna gain of the beam A to obtain a reference beam antenna gain of the beam A, wherein the reference beam antenna gain is less than the initial beam antenna gain; Obtaining a second value according to the initial beam antenna gain and the reference beam antenna gain; If the second value is not less than the first value, the target effective isotropic radiated power of beam A is obtained according to the reference beam antenna gain of beam A and the initial transmit power.

10. The device according to claim 9, characterized in that The device further comprises: If the second value is less than the first value, the adjustment module is specifically configured to: determine the reference transmit power of the beam A according to the first value, the second value, and the initial transmit power of the beam A; The target effective isotropic radiated power of beam A is obtained according to the reference beam antenna gain and the reference transmit power of beam A.

11. A control device, characterized in that: The invention comprises a processor and a transceiver, wherein the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the method according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the method according to any one of claims 1 to 5.

Images