CN109995411B - Antenna adjusting method and device - Google Patents
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- CN109995411B CN109995411B CN201910313647.2A CN201910313647A CN109995411B CN 109995411 B CN109995411 B CN 109995411B CN 201910313647 A CN201910313647 A CN 201910313647A CN 109995411 B CN109995411 B CN 109995411B
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Abstract
The invention provides an antenna adjustment method and an antenna adjustment device, which are characterized in that an antenna height difference and a distance between a first antenna of a target network device and a second antenna of an interference source network device and a first zero beam width of a vertical surface of the first antenna are obtained, a target electronic downward inclination angle of the first antenna is determined according to the distance, the antenna height difference and the first zero beam width, and then the current electronic downward inclination angle of the first antenna is adjusted to be the target downward inclination angle according to the target downward inclination angle, so that an upper zero point of the first antenna faces to the second antenna, namely the upper zero point of the first antenna faces to the interference source network device. In this process, when the downtilt angle of the first antenna is the target downtilt angle, the antenna induced voltage is the minimum, and therefore, the upper zero point of the first antenna faces the interference source network device, and the interference signal of the second antenna on the first antenna is the weakest.
Description
Technical Field
The present invention relates to the field of antenna technologies, and in particular, to an antenna adjustment method and apparatus.
Background
With the continuous development of communication technology, more and more network devices are deployed in the same area, and a terminal device can select to access different network devices for communication.
In general, a signal transmitted from a terminal device to a network device is referred to as an uplink signal, a signal transmitted from the network device to the terminal device is referred to as a downlink signal, and signal quality of the uplink signal and the downlink signal is one of important factors affecting communication service quality. In the process of sending the uplink signal, the terminal device sends the uplink signal to the target network device, for the target network device, the other network devices are interference source network devices, the signal sent by the interference source network device is an interference signal, and the uplink signal sent by the terminal device is easily interfered by the interference source network device, so that the uplink signal is submerged in the interference signal of the interference source network device, and further the uplink signal is lost, thereby causing call drop, low rate and the like, and affecting normal communication services. At this time, for the interference source network device whose antenna is a polarization-adjustable antenna, the purpose of suppressing the interference of the interference signal of the interference source network device on the uplink signal is achieved by adjusting the polarization angle of the antenna of the interference source network device.
However, all antennas of the aggressor network device are not polarization-tunable antennas, and in order to suppress an interference signal of the aggressor network device, the antennas of the aggressor network device need to be replaced with polarization-tunable antennas, which results in high replacement cost.
Disclosure of Invention
The invention provides an antenna adjusting method and device, which aim to suppress interference signals by adjusting the electronic downward inclination angle of a first antenna of target network equipment to enable the upper zero point of the first antenna of the target network equipment to face a second antenna of interference source network equipment, namely, by enabling the first zero point of the target network equipment to face the interference source network equipment.
In a first aspect, an embodiment of the present invention provides an antenna adjustment method, including:
obtaining a distance between a first antenna and a second antenna, an antenna height difference between the first antenna and the second antenna, and a first zero beam width of a vertical plane of the first antenna, wherein the first antenna is an antenna of a target network device, and the second antenna is an antenna of an interference source network device;
determining a target electronic downward inclination angle of the first antenna according to the distance, the antenna height difference and the first zero beam width;
and adjusting the electronic downward inclination angle of the first antenna according to the target electronic downward inclination angle so as to enable the upper zero point of the first antenna to face the second antenna.
In one possible design, the first antenna is an array antenna, and the obtaining the first null beamwidth on the vertical plane of the first antenna includes:
acquiring a vertical half-power beam width of the first antenna;
determining the array spacing of the first antenna according to the vertical half-power beam width of the first antenna;
determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna;
and determining the first null point beam width of the vertical surface of the first antenna according to the position of the first null point of the vertical surface of the first antenna.
In one possible design, the determining the array spacing of the first antenna according to the vertical half-power beamwidth of the first antenna includes:
determining a mapping relation between the vertical half-power beam width of the first antenna and the array spacing of the first antenna according to the number of the array elements of the first antenna;
and determining the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
In one possible design, the determining the position of the first null on the vertical plane of the first antenna according to the array pitch of the first antenna includes:
and determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna and the number of the array elements of the first antenna.
In one possible design, the determining a target electronic downtilt angle of the first antenna according to the distance, the antenna height difference, and the first null beam width includes:
tan according to ═ a-1(HAB/SAB) + γ/2, determining a target electronic downtilt angle of the first antenna;
wherein the < a is a target electronic downward inclination angle of the first antenna, and HABFor the antenna height difference, SABThe γ is the first null beamwidth for the distance.
In one possible design, the obtaining the distance between the first antenna and the second antenna includes:
acquiring the longitude and latitude of the first antenna and the longitude and latitude of the second antenna;
and determining the distance between the first antenna and the second antenna according to the longitude and latitude of the first antenna and the longitude and latitude of the second antenna.
In one possible design, the network device of the interference source is a network device in a repeater.
In a second aspect, an embodiment of the present invention provides an antenna adjusting apparatus, including:
an obtaining module, configured to obtain a distance between a first antenna and a second antenna, an antenna height difference between the first antenna and the second antenna, and a first zero beam width of a vertical plane of the first antenna, where the first antenna is an antenna of a target network device, and the second antenna is an antenna of an interference source network device;
the determining module is used for determining a target electronic downward inclination angle of the first antenna according to the distance, the antenna height difference and the first zero beam width;
and the adjusting module is used for adjusting the electronic downward inclination angle of the first antenna according to the target electronic downward inclination angle so as to enable the upper zero point of the first antenna to face the second antenna.
In one possible design, the first antenna is an array antenna, and the obtaining module is configured to obtain a vertical half-power beam width of the first antenna; determining the array spacing of the first antenna according to the vertical half-power beam width of the first antenna; determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna; and determining the first null point beam width of the vertical surface of the first antenna according to the position of the first null point of the vertical surface of the first antenna.
In a feasible design, the obtaining module is configured to determine a mapping relationship between a vertical half-power beam width of the first antenna and an array spacing of the first antenna according to the number of array elements of the first antenna; and determining the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
In a possible design, the obtaining module is configured to determine a position of a first zero point on a vertical plane of the first antenna according to the array pitch of the first antenna and the number of array elements of the first antenna.
In one possible design, the determining module is configured to determine the value of tan according to ═ a ═ tan-1(HAB/SAB) + γ/2, determining a target electronic downtilt angle of the first antenna; wherein the < a is a target electronic downward inclination angle of the first antenna, and HABFor the antenna height difference, SABThe γ is the first null beamwidth for the distance.
In a feasible design, the obtaining module is configured to obtain the longitude and latitude of the first antenna and the longitude and latitude of the second antenna; and determining the distance between the first antenna and the second antenna according to the longitude and latitude of the first antenna and the longitude and latitude of the second antenna.
In one possible design, the network device of the interference source is a network device in a repeater.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method according to the first aspect or the various possible implementations of the first aspect.
In a fourth aspect, embodiments of the present invention provide a storage medium, which stores instructions that, when executed on an electronic device, cause the electronic device to perform the method according to the first aspect or any of the possible implementations of the first aspect.
In a fifth aspect, embodiments of the present invention provide a computer program product, which, when run on an electronic device, causes the electronic device to perform the method according to the first aspect or the various possible implementations of the first aspect.
According to the antenna adjustment method and device provided by the embodiment of the invention, the antenna height difference and distance between the first antenna of the target network device and the second antenna of the interference source network device and the first zero beam width of the vertical surface of the first antenna are obtained, the target electronic downtilt angle of the first antenna is determined according to the distance, the antenna height difference and the first zero beam width, and then the current electronic downtilt angle of the first antenna is adjusted to be the target downtilt angle according to the target downtilt angle, so that the upper zero point of the first antenna faces to the second antenna, namely the upper zero point of the first antenna faces to the interference source network device. In this process, when the downtilt angle of the first antenna is the target downtilt angle, the antenna induced voltage is the minimum, and therefore, the upper zero point of the first antenna faces the interference source network device, and the interference signal of the second antenna on the first antenna is the weakest.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed to be used in the description of the embodiments or the prior art, and obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without inventive labor.
Fig. 1 is a schematic diagram of a network architecture to which an antenna adjustment method according to an embodiment of the present invention is applied;
fig. 2 is a flowchart of an antenna adjustment method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a distance, an antenna height difference, and a first null beam width in an antenna adjustment method according to an embodiment of the present invention;
fig. 4A is a schematic diagram of an HPBW and an FNBW in an antenna adjustment method according to an embodiment of the present invention;
fig. 4B is a schematic diagram of an upper null direction of a first antenna in an antenna adjustment method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an antenna adjustment apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In general, an uplink signal sent by a terminal device to a target network device is inevitably interfered by an interference signal sent by an interference source network device, so that the uplink signal is submerged in the interference signal of the interference source network device, and further, the uplink signal is lost, thereby causing a call drop, a low rate and the like, and affecting a normal communication service. Therefore, the antenna of the interference source network device is required to be a polarization-adjustable antenna, and the purpose of suppressing the interference of the interference signal of the interference source network device on the uplink signal is achieved by adjusting the polarization angle of the antenna of the interference source network device.
However, all antennas of the aggressor network device are not polarization-tunable antennas, and in order to suppress an interference signal of the aggressor network device, the antennas of the aggressor network device need to be replaced with polarization-tunable antennas, which results in high replacement cost.
In view of this, an embodiment of the present invention provides an antenna angle adjusting method, which adjusts an electronic downtilt angle of a first antenna of a target network device, so that an upper zero point of the first antenna faces a second antenna of an interference source network device, that is, the upper zero point of the first antenna of the target network device is aligned with the interference source network device, thereby achieving a purpose of suppressing an interference signal.
Fig. 1 is a schematic diagram of a network architecture to which the antenna adjustment method according to the embodiment of the present invention is applied. Referring to fig. 1, a target network device and an interference source network device exist in the network architecture, where the target network device is, for example, an evolved Node B (eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved Public Land Mobile Network (PLMN) network, or a nodeb in an NR system. May be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection capability, or other processing device connected to a wireless modem. The interference source network device is, for example, a network device in a repeater.
For clarity, in the embodiment of the present invention, the antenna of the target network device is referred to as a first antenna, and the antenna of the interference source network device is referred to as a second antenna. It should be noted that, in the embodiment of the present invention, the target network device and the interference source network device are opposite, for example, the terminal device may access the network device a or the network device B to perform communication, when the terminal device accesses the network device a, the network device a is the target network device, and the network device B is the interference source network device; when the terminal device accesses the network device B, the network device B is a target network device, and the network device a is an interference source network device.
Referring to fig. 1, when a terminal device sends an uplink signal to a target network device, the uplink signal is easily interfered by an interference signal of an interference source network device. In the embodiment of the present invention, by adjusting the electronic downtilt angle of the first antenna of the target network device, the upper zero point of the first antenna of the target network device faces the second antenna of the interference source network device, that is, by aligning the upper zero point of the first antenna of the target network device with the second antenna of the interference source network device, the purpose of suppressing the interference signal is achieved. When the upper zero point of the first antenna of the target network device is aligned with the second antenna of the interference source network device, the electronic downtilt angle of the first antenna of the target network device is the target electronic downtilt angle.
Next, based on the network architecture shown in fig. 1, the antenna adjustment method according to the embodiment of the present invention is described in detail. For example, reference may be made to fig. 2.
Fig. 2 is a flowchart of an antenna adjustment method according to an embodiment of the present invention, which is described in detail in this embodiment from the perspective of an antenna adjustment apparatus, where the antenna adjustment apparatus may be disposed on a target network device or may be disposed on another electronic device. When the antenna adjusting device is arranged on the electronic equipment, the electronic equipment can communicate with the target network equipment and send an instruction to the target network equipment, so that the target network equipment automatically adjusts the electronic downward inclination angle of the first antenna according to the instruction, and the upper zero point of the first antenna of the target network equipment is aligned with the interference source network equipment.
The following describes in detail an antenna adjustment method according to an embodiment of the present invention, taking the antenna adjustment apparatus as an example, where the antenna adjustment apparatus is installed in a target network device. Fig. 2 includes the following steps:
101. the method comprises the steps of obtaining the distance between a first antenna and a second antenna, the height difference of the first antenna and the second antenna, and the first zero beam width of a vertical plane of the first antenna, wherein the first antenna is an antenna of target network equipment, and the second antenna is an antenna of interference source network equipment.
In this step, the antenna adjustment apparatus obtains an antenna height difference and a distance between a first antenna of the target network device and a second antenna of the interference source network device, and a first zero beam width of a vertical plane of the first antenna. For example, the antenna height difference, the distance, and the first null beam width on the vertical plane of the first antenna are stored in a storage medium, and the antenna adjustment device reads data in the storage medium to acquire the antenna height difference, the distance, and the first null beam width on the vertical plane of the first antenna. If so, the antenna modulation device acquires the longitude and latitude of the target network equipment and the longitude and latitude of the interference source network equipment, and determines the distance between the target network equipment and the interference source network equipment according to the longitude and latitude; the antenna modulation device obtains the height of a first antenna of the target network device and the height of a second antenna of the interference source network device, and then obtains the height difference.
102. And determining a target electronic downward inclination angle of the first antenna according to the distance, the antenna height difference and the first zero beam width.
In this step, the antenna adjusting apparatus determines a target electronic downtilt of the first antenna according to the distance, the antenna height difference, and the first zero beam width obtained in step 101, where the target downtilt may be: when the downward inclination angle of the first antenna is the target downward inclination angle, the induced voltage of the antenna is minimum, at this time, the upper zero point of the first antenna faces the second antenna, that is, the upper zero point of the first antenna faces the interference source network device, and the interference signal of the second antenna on the first antenna is weakest.
103. And adjusting the electronic downward inclination angle of the first antenna according to the target electronic downward inclination angle so as to enable the upper zero point of the first antenna to face the second antenna.
In this step, the antenna adjusting apparatus adjusts the current electronic downtilt of the first antenna to the target downtilt according to the target downtilt obtained in step 102, so that the upper zero point of the first antenna faces the second antenna, that is, the upper zero point of the first antenna faces the interference source network device. When the downward inclination angle of the first antenna is the target downward inclination angle, the induced voltage of the antenna is the minimum, so that the upper zero point of the first antenna faces the interference source network device, and the interference signal of the second antenna on the first antenna is the weakest. Moreover, the maximum radiation direction of the first antenna is aligned to the user, and the lobe zero point or lower side lobe of the first antenna is aligned to the interference source network equipment, so that the effect of weakening and even setting the interference signal is achieved, and the interference signal is effectively inhibited.
According to the antenna adjustment method provided by the embodiment of the invention, the antenna height difference and the distance between the first antenna of the target network device and the second antenna of the interference source network device and the first zero beam width of the vertical surface of the first antenna are obtained, the target electronic downtilt angle of the first antenna is determined according to the distance, the antenna height difference and the first zero beam width, and then the current electronic downtilt angle of the first antenna is adjusted to be the target downtilt angle according to the target downtilt angle, so that the upper zero point of the first antenna faces the second antenna, namely the upper zero point of the first antenna faces the interference source network device. In this process, when the downtilt angle of the first antenna is the target downtilt angle, the antenna induced voltage is the minimum, and therefore, the upper zero point of the first antenna faces the interference source network device, and the interference signal of the second antenna on the first antenna is the weakest.
In the following, how to determine the distance between the first antenna of the target network device and the second antenna of the interference source network device, the height difference of the antennas, the beam width, and the like in the above embodiments will be described in detail. For example, please refer to fig. 3.
Fig. 3 is a schematic diagram of a distance, an antenna height difference, and a first null beam width in an antenna adjustment method according to an embodiment of the present invention. In this embodiment, the target network device is a network device a, and the interference source network device is a network device B.
First, the inter-antenna distance is acquired.
In the process of obtaining the distance between the antennas, the antenna adjusting device obtains the distance between the first antenna and the second antenna, obtains the longitude and latitude of the first antenna and the longitude and latitude of the second antenna, and determines the distance between the first antenna and the second antenna according to the longitude and latitude of the first antenna and the longitude and latitude of the second antenna. Referring to fig. 3, the antenna adjusting apparatus obtains the longitude and latitude of the network device a, obtains the longitude and latitude of the network device B, and determines the linear distance S between the first antenna of the network device a and the second antenna of the network device B according to the longitude and latitude of the network device a and the longitude and latitude of the network device BAB. As can be seen from fig. 3: linear distance SABThe shortest straight-line distance between the network device a and the network device is not the shortest straight-line distance in the horizontal direction, which is relative to the height direction.
Let the latitude of the network device a be phi 1 and the longitude be lambda 1, and the latitude of the network device B be phi 2 and the longitude be lambda 2, then the distance S between the first antenna and the second antenna can be calculated by the following formula oneAB：
Second, an antenna height difference is obtained.
Referring to FIG. 3, a network deviceIf the height of the antenna A is H and the height of the network device B is H, the height difference of the antenna can be obtained according to a formula II: hAB＝H-h。
And finally, acquiring the beam width of the first zero point.
When the first antenna is an array antenna, in the process of acquiring the first zero-point beam width, the antenna adjustment device acquires a vertical half-power beam width (HPBW) of the first antenna, determines an array spacing of the first antenna according to the vertical half-power beam width of the first antenna, and the array spacing is denoted as d, and then the antenna adjustment device determines a position of a first zero point on a vertical plane of the first antenna according to the array spacing d of the first antenna, and further determines a first zero-point beam width (FNBW) on the vertical plane of the first antenna according to the position of the first zero point on the vertical plane of the first antenna. For example, referring to fig. 4A and 4B, fig. 4A is a schematic diagram of HPBW and FNBW in an antenna adjustment method provided in an embodiment of the present invention, and fig. 4B is a schematic diagram of an upper zero point direction of a first antenna in an antenna adjustment method provided in an embodiment of the present invention.
Referring to fig. 4A, a maximum ellipse is a main lobe of the first antenna, two small ellipses located beside the main lobe are first side lobes of the first antenna, and ray directions between the side lobes and the main lobe are an upper null direction and a lower null direction of the first antenna, respectively, where the upper null direction refers to a ray direction away from the ground, and the lower null direction refers to a ray direction close to the ground. Referring to fig. 4B, FNBW is, for example, γ, HPBW is, β, and after the antenna adjustment, the upper zero point of the first antenna, that is, the edge far away from the ground in the angle corresponding to the first zero point beam width of the vertical surface of the first antenna, is aligned to the source direction of the interference wave of the second antenna, so that the input voltage of the interference wave is minimum, and the purpose of suppressing the interference signal is achieved.
When the array spacing d of the first antenna is determined according to the vertical half-power beam width of the first antenna, the antenna adjusting device determines a mapping relation between the vertical half-power beam width of the first antenna and the array spacing of the first antenna according to the number of array elements of the first antenna, and then determines the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
When the position of the first zero point on the vertical surface of the first antenna is determined according to the array pitch d of the first antenna, the antenna adjusting device determines the position of the first zero point on the vertical surface of the first antenna according to the array pitch d of the first antenna and the number of array elements of the first antenna. Next, how to determine the first null beamwidth in the vertical plane of the first antenna will be described in detail, taking the number of elements of the first antenna as 8 as an example.
Illustratively, when the first antenna of the target network device is an eight-element uniform linear array (N ═ 8) composed of half-wave elements, the first antenna is an edge-fire array antenna, and N denotes the number of elements of the first antenna. Therefore, the array spacing d can be calculated by the normalized direction function of the uniform linear array through the vertical half-power beam width beta, and the position of the first zero point can be calculated through the array spacing d
Finally, the position of the first zero point according to the vertical plane of the first antenna is calculated
A first null beamwidth gamma is determined for the vertical plane of the first antenna. In the above embodiment, the normalized direction function is shown in formula three:
true value of vertical half power point
Substituting N to 8 into formula three
In the above embodiment, according to the third formula, the relationship between the vertical half-power beam width β and the array pitch d of the first antenna is derived as shown in the fourth formula:
substituting the vertical half-power beam width beta of the antenna of the network equipment disclosed by the antenna manufacturer into the formula four to obtain different array spacing d. For example, see table 1.
TABLE 1 first antenna array spacing d value-taking table
| N | β | d |
| 8 | 7 | 0.9λ |
| 8 | 6.5 | 0.975λ |
| 8 | 8.5 | 0.75λ |
In the embodiment of the invention, the general expression of the normalization factor of the uniform linear array is shown as the following formula five:
when the first antenna is an eight-element uniform linear array, i.e., N is 8, the uniform linear array function is shown in equation six:
wherein the content of the first and second substances,
the first zero of the network device occurs
The linear array comprises an edge emitting array and an end emitting array, and for the edge emitting array, xi is 0,
according to the above, it can be seen that: the formula six can be simplified as the following formula seven:
substituting the array pitch d in table 1 into the formula seven above, the position of the first zero point on the vertical plane of the first antenna is obtained. For example, see table 2.
TABLE 2 location table of first null point on vertical plane of antenna
In the embodiment of the present invention, the first zero beam width γ may be calculated according to the following formula eight:
Table 3 first null point beam width value taking table of antenna vertical plane
After the vertical half-power beam width β of the first antenna of the interfered network device, that is, the target network device is obtained, a first null point beam width γ of a vertical plane of the first antenna may be determined, where a unit is degree. For example, see table 4.
Table 4 number of elements of the first antenna, vertical half-power beam width β, array spacing d, and position of the first null point
Summary of the first null beamwidth γ.
Referring to fig. 3 again, the distance S between the first antenna and the second antennaABHeight difference H of antennaABDetermining a target electronic downward inclination angle of the first antenna by using the first zero beam width gamma of the vertical surface of the first antenna, and assuming that the calculation result retains one digit after the decimal point and the unit is degree, the derivation process is as follows:
because AB// CD, so ═ a';
because the ═ a 'is complementary with the ≤ a ≤ so that the ≤ a' is 180 ° —. a ≤;
because ^ a 'is in triangle DEF, the ^ a' is 180 DEG-theta-gamma/2
Because &thetais also in the right triangle DEC, and SCD＝SABSo that < θ > tan-1 (H)AB/SAB)；
So that ═ a ═ 180 ° -tan--1(HAB/SAB)-∠γ/2；
So that < a' is 180 ° - (180 ° -tan)-1(HAB/SAB)-∠γ/2))；
So that ═ a ═ tan ═-1(HAB/SAB)+γ/2。
From this, formula nine for representing the target electron downtilt angle can be derived:
∠a＝tan-1(HAB/SAB)+γ/2
the following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
Fig. 5 is a schematic structural diagram of an antenna adjustment apparatus according to an embodiment of the present invention, where the antenna adjustment apparatus may be implemented by software and/or hardware. As shown in fig. 5, the antenna adjustment apparatus 100 includes:
an obtaining module 11, configured to obtain a distance between a first antenna and a second antenna, an antenna height difference between the first antenna and the second antenna, and a first zero beam width of a vertical plane of the first antenna, where the first antenna is an antenna of a target network device, and the second antenna is an antenna of an interference source network device;
a determining module 12, configured to determine a target electronic downtilt angle of the first antenna according to the distance, the antenna height difference, and the first zero beam width;
and an adjusting module 13, configured to adjust an electronic downtilt of the first antenna according to the target electronic downtilt, so that an upper zero point of the first antenna faces the second antenna.
In a possible design, the first antenna is an array antenna, and the obtaining module 11 is configured to obtain a vertical half-power beam width of the first antenna; determining the array spacing of the first antenna according to the vertical half-power beam width of the first antenna; determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna; and determining the first null point beam width of the vertical surface of the first antenna according to the position of the first null point of the vertical surface of the first antenna.
In a feasible design, the obtaining module 11 is configured to determine a mapping relationship between a vertical half-power beam width of the first antenna and an array pitch of the first antenna according to the number of array elements of the first antenna; and determining the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
In a possible design, the obtaining module 11 is configured to determine a position of a first null point on a vertical plane of the first antenna according to the array pitch of the first antenna and the number of array elements of the first antenna.
In one possible embodiment, the determination module 12 is configured to determine the value of tan as a function of ═ a-1(HAB/SAB) + γ/2, determining a target electronic downtilt angle of the first antenna; wherein the & lt a is a target electronic downward inclination angle of the first antenna, the HAB is the height difference of the antennas, and SABThe γ is the first null beamwidth for the distance.
In a feasible design, the obtaining module 11 is configured to obtain the longitude and latitude of the first antenna and the longitude and latitude of the second antenna; and determining the distance between the first antenna and the second antenna according to the longitude and latitude of the first antenna and the longitude and latitude of the second antenna.
In one possible design, the network device of the interference source is a network device in a repeater.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 6, the electronic apparatus 200 includes:
at least one processor 21 and memory 22;
the memory 22 stores computer-executable instructions;
the at least one processor 21 executes computer-executable instructions stored by the memory 22 to cause the at least one processor 21 to perform the antenna adjustment method as described above.
For a specific implementation process of the processor 21, reference may be made to the above method embodiments, which implement similar principles and technical effects, and this embodiment is not described herein again.
Optionally, the electronic device 200 further comprises a communication component 23. The processor 21, the memory 22, and the communication unit 23 may be connected by a bus 24.
An embodiment of the present invention further provides a storage medium, where a computer executing instruction is stored in the storage medium, and the computer executing instruction is used to implement the antenna adjustment method described above when being executed by a processor.
Embodiments of the present invention further provide a computer program product, which when running on a computer, causes the computer to execute the above antenna adjustment method.
In the above embodiments, it should be understood that the described apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable an electronic device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the method according to various embodiments of the present invention.
It should be understood that the processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present invention are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in a terminal or server.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An antenna adjustment method, comprising:
obtaining a distance between a first antenna and a second antenna, an antenna height difference between the first antenna and the second antenna, and a first zero beam width of a vertical plane of the first antenna, wherein the first antenna is an antenna of a target network device, and the second antenna is an antenna of an interference source network device;
determining a target electronic downward inclination angle of the first antenna according to the distance, the antenna height difference and the first zero beam width;
adjusting the electronic downward inclination angle of the first antenna according to the target electronic downward inclination angle so that the upper zero point of the first antenna faces the second antenna;
the first antenna is an array antenna, and the obtaining of the first null beam width of the vertical plane of the first antenna includes:
acquiring a vertical half-power beam width of the first antenna;
determining the array spacing of the first antenna according to the vertical half-power beam width of the first antenna;
determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna;
and determining the first null point beam width of the vertical surface of the first antenna according to the position of the first null point of the vertical surface of the first antenna.
2. The method of claim 1, wherein the determining the array spacing of the first antenna based on the vertical half-power beamwidth of the first antenna comprises:
determining a mapping relation between the vertical half-power beam width of the first antenna and the array spacing of the first antenna according to the number of the array elements of the first antenna;
and determining the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
3. The method of claim 1, wherein determining the position of the first null in the vertical plane of the first antenna based on the array spacing of the first antenna comprises:
and determining the position of a first zero point of a vertical plane of the first antenna according to the array spacing of the first antenna and the number of the array elements of the first antenna.
4. The method of claim 1, wherein determining the target electronic downtilt angle of the first antenna based on the distance, the antenna height difference, and the first null beamwidth comprises:
tan according to ═ a-1(HAB/SAB) + gamma/2, determinationA target electronic downtilt angle of the first antenna;
wherein the < a is a target electronic downward inclination angle of the first antenna, and HABFor the antenna height difference, SABThe γ is the first null beamwidth for the distance.
5. The method of claim 1, wherein obtaining the distance between the first antenna and the second antenna comprises:
acquiring the longitude and latitude of the first antenna and the longitude and latitude of the second antenna;
and determining the distance between the first antenna and the second antenna according to the longitude and latitude of the first antenna and the longitude and latitude of the second antenna.
6. The method of any of claims 1-5, wherein the aggressor network device is a network device in a repeater.
7. An antenna adjustment apparatus, comprising:
an obtaining module, configured to obtain a distance between a first antenna and a second antenna, an antenna height difference between the first antenna and the second antenna, and a first zero beam width of a vertical plane of the first antenna, where the first antenna is an antenna of a target network device, and the second antenna is an antenna of an interference source network device;
the determining module is used for determining a target electronic downward inclination angle of the first antenna according to the distance, the antenna height difference and the first zero beam width;
the adjusting module is used for adjusting the electronic downward inclination angle of the first antenna according to the target electronic downward inclination angle so as to enable the upper zero point of the first antenna to face the second antenna;
the acquisition module is specifically configured to:
determining a mapping relation between the vertical half-power beam width of the first antenna and the array spacing of the first antenna according to the number of the array elements of the first antenna;
and determining the array spacing of the first antenna according to the mapping relation and the vertical half-power beam width of the first antenna.
8. An electronic device, comprising:
a memory for storing program instructions;
a processor for invoking and executing program instructions in said memory for performing the method steps of any of claims 1-6.
9. A storage medium having stored therein instructions that, when run on an electronic device, cause the electronic device to perform the method of any one of claims 1-6.
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| CN114285496B (en) * | 2021-12-17 | 2023-07-28 | 中国联合网络通信集团有限公司 | Antenna downtilt angle calibration method and device |
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| CN101237268A (en) * | 2007-11-21 | 2008-08-06 | 北京理工大学 | A lead antenna bundle shaping system and its realization method |
| CN104469803B (en) * | 2013-09-25 | 2017-12-19 | 普天信息技术有限公司 | A kind of vertical beam method of adjustment and device |
| CN105375959B (en) * | 2015-10-14 | 2018-06-26 | 西安交通大学 | Based on the matched distributed disturbance coordination method of beam shape in 3D-MIMO systems |
| CN106937300B (en) * | 2015-12-29 | 2019-11-22 | 上海无线通信研究中心 | A kind of method of dynamic and intelligent adjustment Downtilt |
| CN105974377B (en) * | 2016-05-12 | 2020-01-21 | 中国人民解放军装备学院 | Interference method for digital array radar adaptive zeroing technology |
| CN107171710A (en) * | 2017-04-28 | 2017-09-15 | 中国电子科技集团公司第七研究所 | beam-forming method and system |
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