CN113659340A - Millimeter wave antenna direction control method and device, terminal equipment and medium - Google Patents
Millimeter wave antenna direction control method and device, terminal equipment and medium Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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Abstract
The embodiment of the invention relates to the technical field of millimeter wave communication, and discloses a method and a device for controlling the direction of a millimeter wave antenna, terminal equipment and a medium. The method comprises the following steps: searching an incoming wave direction at the current azimuth angle of the antenna plate to obtain a target incoming wave direction angle; controlling an antenna board to rotate to a target incoming wave azimuth angle from a current azimuth angle, scanning an access base station by adopting an electric phased array beam, and recording the signal quality corresponding to the target incoming wave direction angle; if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target is not met, after the antenna plate is controlled to rotate within the conical scanning range of the electric phase control array of the antenna plate in a preset proportion, the steps are repeated to obtain the signal quality corresponding to the incoming wave direction angle of the next target; if the preset conditions are met, selecting a target signal quality value and a corresponding azimuth angle from the signal qualities corresponding to all recorded target incoming wave direction angles; the antenna board is controlled to rotate. Thereby significantly shortening the time to access the base station.
Description
Technical Field
The present invention relates to the field of millimeter wave communication technologies, and in particular, to a method and an apparatus for controlling a direction of a millimeter wave antenna, a terminal device, and a medium.
Background
CPE (Customer Premise Equipment) is a kind of user terminal Equipment for wireless broadband access. The CPE is generally configured to convert a wireless network signal (e.g., 2G, 3G, 4G, 5G) sent by the base station into a WiFi signal, and a user can access the wireless communication network only by inserting the SIM card and turning on the power supply, so that the cost of laying a wired network (e.g., an optical cable, a copper wire) can be effectively saved. Therefore, the CPE equipment is widely applied to occasions without a wired network, such as rural areas, towns, hospitals, factories, cells and the like.
The fifth generation mobile communication technology (5th generation mobile networks, 5G) is favored by users due to its high communication speed. For example, the transmission speed when data is transmitted by 5G mobile communication is hundreds of times faster than the transmission speed of data by 4G mobile communication technology. And millimeter waves are an important frequency band for implementing 5G mobile communication.
However, when the millimeter wave antenna is applied to the CPE, since the millimeter wave is difficult to refract and reflect, beam alignment must be ensured to ensure communication quality. The electrical phased array beam technology (beamforming) of the antenna can only guarantee base station wireless signal beam alignment and reliable connection for millimeter wave antennas (CPE antenna boards are placed in the X, Y plane, facing the Z direction, as shown in fig. 1) over a cone of theta angles less than +/-60 deg. (i.e., 120 deg.) or +/-45 deg. (i.e., 90 deg.). For example, if the base station is at a position at a theta angle of 90 degrees (in the same horizontal plane as the CPE antenna), or 180 degrees (behind the CPE antenna), the millimeter wave antenna of the CPE cannot receive the millimeter wave signal.
Therefore, the millimeter wave antenna plate needs to be mechanically rotated to find the position of the incoming wave (signal) of the wireless signal, the antenna plate is rotated by the theta angle of 0 ° to 180 ° to receive the right-to-rear incoming wave, and the antenna plate is rotated by the theta angle of 0 ° to-180 ° to receive the left-to-rear incoming wave. The Theta angle of the mechanical rotation is determined by the direction of the incoming wave transmitted by the base station and received by the CPE. The rapid and accurate determination of the theta angle is beneficial to improving the performance of the equipment.
The inventor finds that in the prior art, the search of Theta angle adopts an exhaustive search mode: the antenna plate is mechanically rotated by an angle in turn until the antenna plate rotates by a circle, the signal-to-noise ratio of the beam, the reference signal received power, the reference signal received quality indication and the like are recorded each time, and the rotation angle (namely the theta angle) of the antenna plate is determined according to the maximum value of the signal quality. However, in this method, the terminal device needs to search for the synchronization information (primary synchronization and secondary synchronization reference signals) of the base station to obtain the frequency and MIB (primary broadcast message) of the base station, so it takes a lot of time to determine the rotation angle, and the user experience is poor.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a method, an apparatus, a terminal device, and a medium for controlling a direction of a millimeter wave antenna, so as to solve the problem in the prior art that a large amount of time is required to determine a rotation angle, which results in a long time for the terminal device to access a base station, and affects user experience.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a millimeter wave antenna direction control method, which is applied to a terminal device, and the method includes:
searching an incoming wave direction at the current azimuth angle of an antenna plate of the terminal equipment, and obtaining a target incoming wave direction angle according to a search result;
controlling the antenna board to rotate from the current azimuth angle to the target incoming wave azimuth angle, then performing synchronization and base station access operation by adopting electric phased array beam scanning, and if the synchronization and the base station access are successful, recording the signal quality of the millimeter waves corresponding to the target incoming wave direction angle;
if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target is not met, after the antenna plate is controlled to rotate within the conical scanning range of the electric phase control array of the antenna plate in a preset proportion, the steps are repeated to obtain the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target;
if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is met, selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all the recorded target incoming wave direction angles;
and controlling the antenna plate to rotate to the azimuth corresponding to the target signal quality value.
In addition, the searching for the incoming wave direction at the current azimuth angle of the antenna board of the terminal device includes:
and obtaining the direction angle of the incoming wave by adopting an angle spectrum or coherent estimation.
In addition, the obtaining of the target incoming wave direction angle according to the search result includes:
if the search result includes a plurality of incoming wave direction angles, the target incoming wave direction angle is an incoming wave direction angle corresponding to a maximum possible incoming wave direction in the plurality of incoming wave direction angles.
In addition, the obtaining of the target incoming wave direction angle according to the search result further includes:
and if no incoming wave direction angle exists in the search result, taking the current azimuth angle of the antenna board as the target incoming wave direction angle.
In addition, the preset condition for ending the acquisition of the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is as follows:
the accumulated rotation angle of the antenna plate in the antenna direction control process is more than or equal to one circle; or
And the signal quality of the millimeter waves corresponding to the target incoming wave direction angle is greater than the preset signal quality value.
In addition, the preset ratio is greater than or equal to 1/2 and less than or equal to 1.
In addition, the preset ratio is 1 or 2/3.
In a second aspect, an embodiment of the present invention further provides a device for controlling a direction of a millimeter wave antenna, where the device is configured in a terminal device, and the device includes:
the incoming wave direction angle searching module is used for searching the incoming wave direction in the current azimuth angle of an antenna plate of the terminal equipment and obtaining a target incoming wave direction angle according to a searching result;
the signal quality recording module is used for controlling the antenna board to rotate from the current azimuth angle to the target incoming wave azimuth angle, then carrying out synchronization and base station access operation by adopting electric phased array beam scanning, and recording the signal quality of the millimeter waves corresponding to the target incoming wave direction angle if the synchronization and the base station access are successful;
the rotating module is used for controlling the antenna plate to rotate a conical scanning range of the electric phased array of the antenna plate in a preset proportion if a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is not met;
the circular control module is used for controlling the antenna plate to rotate within a preset proportion of the conical scanning range of the electric phased array of the antenna plate, and then repeatedly executing the steps corresponding to the circular control module to obtain the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target;
the azimuth angle selection module is used for selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all the recorded target incoming wave direction angles if the preset condition of finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is met;
and the base station access module is used for controlling the antenna plate to rotate to the azimuth corresponding to the target signal quality value.
In a third aspect, an embodiment of the present invention further provides a terminal device configured with a millimeter wave antenna board, where the terminal device includes: a memory storing a computer program and a processor running the computer program to implement the millimeter wave antenna direction control method according to any one of the preceding embodiments.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the millimeter wave antenna direction control method according to any embodiment of the present invention.
The method comprises the steps of searching an incoming wave direction at a current azimuth angle of an antenna plate of terminal equipment, obtaining a target incoming wave direction angle according to a search result, controlling the antenna plate to rotate to the target incoming wave azimuth angle from the current azimuth angle, then carrying out synchronization and base station access operation by adopting electric phased array beam scanning, and recording the signal quality of millimeter waves corresponding to the target incoming wave direction angle if the synchronization and the base station access are successful; if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target is not met, after the antenna plate is controlled to rotate within the conical scanning range of the electric phase control array of the antenna plate in a preset proportion, the steps are repeated to obtain the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target; if the preset condition of finishing obtaining the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is met, selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all the recorded target incoming wave direction angles, finally controlling the antenna board to rotate to the azimuth angle corresponding to the target signal quality value, and performing base station access operation by only rotating the antenna board to each target incoming wave direction angle position in the subsequent process of electrically phase control scanning access to the base station because the target incoming wave direction of the millimeter wave antenna board at the current direction angle position is pre-screened out through incoming wave direction estimation, so that the target signal quality value and the azimuth angle corresponding to the target signal quality value can be obtained according to the signal qualities of the millimeter waves corresponding to all the target incoming wave direction angles and the azimuth angles corresponding to the signal qualities, compared with the prior art that the base station is scanned and accessed one angle by one until the scanning is completed for one week, the number of times of scanning and accessing the base station is greatly reduced, so that the determination time of the direction of the antenna board is greatly shortened, the efficiency of accessing the base station by the terminal equipment is improved, and the improvement of user experience is facilitated.
Drawings
Figure 1 is a schematic view of antenna panel azimuth coordinates;
fig. 2 is a schematic flowchart of a millimeter wave antenna direction control method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a millimeter wave antenna direction control device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal 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 of the present invention will be clearly and completely described through embodiments 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.
Fig. 2 is a flowchart of a millimeter wave antenna direction control method according to an embodiment of the present invention. The technical scheme of the embodiment can be applied to direction control of the millimeter wave antenna of the terminal equipment configured with the 5G millimeter wave antenna board. The method may be executed by a millimeter wave antenna direction control apparatus provided in the embodiment of the present invention, and the apparatus may be implemented in a software and/or hardware manner and configured to be applied to a terminal device. Terminal devices include, but are not limited to: CPE, smart phone, tablet computer, notebook computer, palm computer, Personal Digital Assistant (PDA), portable media player, navigation device, wearable device, which are not limited in this embodiment. As shown in fig. 2, the method specifically includes the following steps:
step 201: and searching the incoming wave direction at the current azimuth angle of the antenna plate of the terminal equipment, and obtaining a target incoming wave direction angle according to the search result.
The current azimuth angle of the antenna plate of the terminal device is the angle of the normal direction of the antenna plate at the current placing position on the coordinate axis. In this case, the antenna plate may be mechanically rotated multiple times in one antenna direction control process, and in this antenna direction control process, a current azimuth angle of the antenna plate before any mechanical rotation operation is performed on the antenna plate may be referred to as an initial azimuth angle, which may be denoted by α. The initial azimuth angle α is determined by the initial placement position of the antenna board, and therefore, the initial azimuth angle α of the antenna board is a random angle that changes with the initial placement position of the antenna board.
The direction angle of the incoming wave is the angle of the incoming wave reaching the antenna plate on the coordinate axis. In the step of searching the incoming wave direction at the current azimuth angle of the antenna board of the terminal device, an angle spectrum estimation may be adopted to obtain the incoming wave direction angle, and the angle spectrum estimation is suitable for estimating the incoming wave directivity of the random signal, and is a more common method for estimating the incoming wave directivity of the random signal, and is not described herein again. It can be understood that, in the step of searching the incoming wave direction at the current azimuth angle of the antenna board of the terminal device, the incoming wave direction angle may also be obtained by using a coherent estimation method on the basis of the known incoming wave signal format, and the method for obtaining the incoming wave direction angle is not particularly limited in this embodiment.
The search result of searching the incoming wave direction at the current azimuth angle of the antenna panel of the terminal device may include: the system comprises 1 incoming wave direction angle, a plurality of incoming wave direction angles or a non-incoming wave direction angle, wherein the incoming wave direction angles can be represented by beta 1 and beta 2, and m is a natural number larger than 1. The non-incoming wave direction angle in the search result indicates that the incoming wave signals are all noise signals. Correspondingly, obtaining the target incoming wave direction angle according to the search result specifically includes: if the search result comprises a plurality of incoming wave direction angles, the target incoming wave direction angle is an incoming wave direction angle corresponding to the largest possible incoming wave direction in the plurality of incoming wave direction angles; if the search result only contains one incoming wave direction angle, taking the incoming wave direction angle as a target incoming wave direction angle, wherein the incoming wave direction angle may be the same as the current azimuth angle of the antenna board; and if no incoming wave direction angle exists in the search result, taking the current azimuth angle as a target incoming wave direction angle.
Step 202: and after the antenna board is controlled to rotate to a target incoming wave azimuth angle from the current azimuth angle, carrying out synchronization and base station access operation by adopting electric phased array beam scanning, and if the synchronization and the base station access are successful, recording the signal quality of the millimeter waves corresponding to the target incoming wave direction angle.
After the target incoming wave direction angle is obtained, the millimeter wave antenna plate is controlled to mechanically rotate to the target incoming wave direction angle from the current azimuth angle, so that the gain of the millimeter wave antenna plate is improved, and the possibility of millimeter wave access is greatly improved. If the current azimuth angle of the antenna plate is the initial azimuth angle alpha of the antenna plate, and the incoming wave direction angle of the target is represented by beta, the azimuth angle after the antenna plate is mechanically rotated is beta. When the value of the target incoming wave direction angle β is 0, that is, the search result does not include the incoming wave direction angle, the antenna plate does not need to rotate. And then, the rotated terminal equipment adopts electric phased array beam scanning to try to synchronize and access base station signals, and after the synchronized access base station succeeds, the signal quality of the millimeter waves corresponding to the target incoming wave direction angle is recorded. The signal quality of the millimeter waves may include one or any combination of the following: beam signal-to-noise ratio, reference signal power, and signal quality of the reference signal. If the terminal equipment fails to access the base station, recording that the signal quality of the target incoming wave azimuth angle is zero.
Step 203: and determining whether a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is met, executing the step 204 if the preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is not met, and continuing executing the step 205 if the preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is met.
The preset condition for ending obtaining of the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target may be: the accumulated rotation angle of the antenna board in the antenna direction control process is larger than or equal to one circle. Correspondingly, determining whether a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is met specifically includes: and determining whether the accumulated rotation angle of the antenna board in the current antenna direction control process is greater than or equal to one week, if so, determining that the preset condition for acquiring the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is met, otherwise, determining that the preset condition for acquiring the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is not met. The accumulated rotation angle of the antenna board in the antenna direction control process at this time is the total mechanical rotation angle of the antenna board in the process from the start of mechanical rotation of the antenna board to the determination of the azimuth corresponding to the target signal quality value, that is, the sum of the mechanical angles of each rotation of the antenna board.
As an alternative, the preset condition for ending obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target may be: the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the target is larger than the preset signal quality value. Correspondingly, determining whether a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is met specifically includes: and determining whether the signal quality of the millimeter waves corresponding to the target incoming wave direction angle is greater than a preset signal quality value, if so, determining that a preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is met, otherwise, determining that the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is not met. The preset signal quality value may be selected according to a communication quality requirement of the terminal device, and is not particularly limited herein.
Step 204: and controlling the antenna plate to rotate within the conical scanning range of the electric phased array of the antenna plate with the preset proportion.
The conical scanning range of the electrically controlled array of antenna plates is typically 120 ° or 90 °, and the preset ratio may be greater than or equal to 1/2 and less than or equal to 1. For example, when the conical scanning range of the electrical phased array of the antenna board is 120 ° and the preset ratio is 1, the antenna board is controlled to mechanically rotate 120 °. When the conical scanning range of the electric phase control array of the antenna board is 90 degrees and the preset proportion is 1, the mechanical rotation of the antenna board is controlled to be 90 degrees. Or when the conical scanning range of the electric phased array of the antenna board is 90 degrees and the preset proportion is 1/2 degrees, the antenna board is controlled to rotate 45 degrees mechanically, and when the conical scanning range of the electric phased array of the antenna board is 120 degrees and the preset proportion is 1/2 degrees, the antenna board is controlled to rotate 60 degrees mechanically. Of course, the preset ratio may also be 2/3, etc. When the preset proportion is smaller than 1, the larger the value of the preset proportion is, the fewer the times of signal quality of millimeter waves corresponding to a target incoming wave direction angle required to be acquired in the antenna direction control method are, and the shorter the time consumption of the whole control method is; when the value of the preset proportion is properly increased, the accuracy of antenna direction control can be improved, and the signal quality is improved.
After step 204, the steps 201 to 204 are repeatedly executed until a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is met.
Step 205: and selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all recorded incoming wave direction angles of the target.
Step 206: and controlling the antenna board to rotate to the azimuth angle corresponding to the target signal quality value.
The target signal quality value can be the maximum value in the quality of the recorded millimeter waves, an azimuth corresponding to the target signal quality value is selected, and the azimuth corresponding to the target signal quality value can be represented by epsilon. And the azimuth angle epsilon corresponding to the target signal quality value is the angle recorded after the target incoming wave direction angle beta is synchronized and is determined to be the signal of the base station, so that incoming wave signals or other interference signals of non-signed base stations or base stations of other operators can be eliminated. And after the azimuth corresponding to the target signal quality value is obtained, controlling the antenna board to rotate to the azimuth epsilon corresponding to the target signal quality value, and controlling the terminal equipment to execute conventional millimeter wave wireless access operation.
Table 1 below shows the target signal quality values v measured by the antenna board at its respective current azimuth angle during one antenna direction control process. Where γ represents the respective current azimuth angle of the antenna board. The target incoming wave direction angle beta of the antenna plate under each current azimuth angle is equal to the current azimuth angle, the conical scanning range of the electric phased array beam scanning of the antenna plate is 120 degrees, the preset proportion is 1, and the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is that the accumulated rotating angle of the antenna plate is equal to one circle in the antenna direction control process at this time.
TABLE 1
| v | v1 | v2 | v3 |
| γ | α | α+120 | α+240 |
As can be seen from table 1, in the process of controlling the antenna direction once, the azimuth corresponding to the target signal quality value, i.e. the incoming wave direction angle with better communication quality, can be searched only by mechanically rotating the antenna 3 times (0,120,240). Compared with the prior art that the base station needs to be accessed once at every 1-degree unit angle, the time for accessing the base station is greatly saved.
If the target incoming wave direction angle β can be obtained every time according to the search result, the values of γ in table 1 may be replaced with the corresponding target incoming wave direction angles β.
As shown in table 2 below, in the case that the conical scanning range of the electrically phased array beam scanning of the antenna panel is 90 ° in one antenna direction control process, and the remaining conditions are the same as those in table 1, each current azimuth angle of the antenna panel and the corresponding target signal quality value v thereof are obtained.
TABLE 2
| v | v1 | v2 | v3 | v4 |
| γ | α | α+90 | α+180 | α+270 |
As can be seen from table 2, in one antenna direction control process, the azimuth corresponding to the target signal quality value, i.e. the incoming wave direction angle with better communication quality, can be searched by only mechanically rotating the antenna 4 times (0,90,180, 270). Compared with the prior art that the base station needs to be accessed once at every 1-degree unit angle, the time for accessing the base station is greatly saved.
Compared with the prior art, the embodiment searches out a target incoming wave direction angle at the current azimuth angle of the antenna plate through incoming wave direction estimation, and after the antenna plate is mechanically rotated to the target incoming wave direction angle, the terminal device is accessed to the base station and obtains the signal quality of millimeter waves corresponding to the target incoming wave direction angle and the incoming wave azimuth angle corresponding to the signal quality, then the antenna plate is controlled to mechanically rotate by taking the conical scanning range of the electrical phase control array of the antenna plate as a step length, and the steps of rotating to the target incoming wave direction angle and measuring the millimeter wave signal quality are repeatedly executed until the antenna plate rotates for a circle relative to the initial azimuth angle or the millimeter wave signal quality of the target incoming wave direction angle is greater than a preset signal quality value, the target signal quality with the best signal quality is selected from the millimeter wave signal qualities of all the target incoming wave direction angles, and the antenna plate is controlled to mechanically rotate to the incoming wave direction angle corresponding to the target signal quality, and then controlling the terminal equipment to access the base station. Because the mechanical rotation frequency of the antenna plate of the embodiment is based on the conical scanning range of the electrical phased array of the antenna plate as the step length, compared with the prior art, the mechanical rotation frequency (i.e. the frequency of detecting the incoming wave signal quality) of the antenna plate is greatly reduced, thereby greatly shortening the time consumed by the detection process of the antenna direction and improving the efficiency of accessing the terminal equipment into the base station on the basis of ensuring the communication quality.
Fig. 3 is a block diagram of a millimeter wave antenna direction control device according to this embodiment. The embodiment of the present invention further provides a millimeter wave antenna direction control apparatus 300, configured on a terminal device, for executing the millimeter wave antenna direction control method provided in any of the above embodiments. The device includes:
an incoming wave direction angle searching module 301, configured to search an incoming wave direction in a current azimuth angle of an antenna panel of the terminal device, and obtain a target incoming wave direction angle according to a search result;
a signal quality recording module 302, configured to control the antenna board to rotate from the current azimuth to the target incoming wave azimuth, perform synchronization and access to a base station by using electrically phased array beam scanning, and record signal quality of millimeter waves corresponding to the target incoming wave direction angle if synchronization and access to the base station are successful;
a rotating module 303, configured to control the antenna board to rotate a conical scanning range of the electrical phased array of the antenna board by a preset ratio if a preset condition for ending obtaining of signal quality of a millimeter wave corresponding to a next target incoming wave direction angle is not met;
a cycle control module 304, configured to control the antenna board to rotate a conical scanning range of the electrical phased array of the antenna board by a preset ratio, and then repeatedly execute the steps corresponding to the above modules to obtain signal quality of millimeter waves corresponding to a next target incoming wave direction angle;
an azimuth selecting module 305, configured to select a target signal quality value and an azimuth corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all recorded target incoming wave direction angles if a preset condition that the acquisition of the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is completed is met;
a base station access module 306, configured to control the antenna board to rotate to an azimuth corresponding to the target signal quality value.
Optionally, the incoming wave direction angle searching module 301 is specifically configured to obtain the incoming wave direction angle by using an angle spectrum or coherence estimation.
Optionally, the incoming wave direction angle searching module 301 is specifically configured to, if the search result includes a plurality of incoming wave direction angles, determine that the target incoming wave direction angle is an incoming wave direction angle corresponding to a maximum possible incoming wave direction in the plurality of incoming wave direction angles.
Optionally, the incoming wave direction angle searching module 301 is further configured to take the current azimuth angle of the antenna board as the target incoming wave direction angle if there is no incoming wave direction angle in the search result.
Optionally, the preset condition for ending obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is as follows:
the accumulated rotation angle of the antenna board in the antenna direction control process is more than or equal to one circle; or
The signal quality of the millimeter waves corresponding to the incoming wave direction angle of the target is larger than the preset signal quality value. Preferably, the preset ratio is greater than or equal to 1/2 and less than or equal to 1. Further, the preset ratio is 1 or 2/3.
Compared with the prior art, the millimeter wave antenna direction control device of the embodiment has the advantages that the mechanical rotation frequency of the antenna plate is the step length of the conical scanning range of the electric phase control array of the antenna plate, and compared with the prior art, the mechanical rotation frequency (namely the frequency of detecting the incoming wave signal quality) of the antenna plate is greatly reduced, so that the time consumed in the antenna direction detection process is greatly shortened, and the efficiency of accessing the terminal equipment into the base station is improved on the basis of ensuring the communication quality.
The embodiment of the invention also provides terminal equipment, and the terminal equipment is provided with the millimeter wave antenna board. As shown in fig. 4, the apparatus includes: memory 402, processor 401;
the memory 402 stores instructions executable by the at least one processor 401, and the instructions are executed by the at least one processor 401 to implement the millimeter wave antenna direction control method according to the foregoing embodiments.
The terminal device includes one or more processors 401 and a memory 402, and one processor 401 is taken as an example in fig. 4. The processor 401 and the memory 402 may be connected by a bus or other means, and fig. 4 illustrates the connection by a bus as an example. Memory 402, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The processor 401 executes various functional applications and data processing of the device by running nonvolatile software programs, instructions, and modules stored in the memory 402, that is, implements the above-described millimeter wave antenna direction control method.
The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
One or more modules are stored in memory 402 and, when executed by the one or more processors 401, perform the millimeter wave antenna direction control method of any of the method embodiments described above.
The above-mentioned device can execute the method provided by the embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method, and reference may be made to the method provided by the embodiment of the present invention for technical details that are not described in detail in the embodiment.
Compared with the prior art, the terminal device of the embodiment has the advantages that the mechanical rotation frequency of the antenna plate is the conical scanning range of the electric phased array of the antenna plate as the step length, and compared with the prior art, the mechanical rotation frequency (namely the frequency of detecting the incoming wave signal quality) of the antenna plate is greatly reduced, so that the time consumption of the antenna direction detection process is greatly shortened, and the efficiency of accessing the terminal device into a base station is improved on the basis of ensuring the communication quality.
Embodiments of the present invention also relate to a non-volatile storage medium for storing a computer-readable program for causing a computer to perform some or all of the above-described method embodiments.
That is, those skilled in the art can understand that all or part of the steps in the method according to the above embodiments may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A millimeter wave antenna direction control method is applied to terminal equipment and is characterized by comprising the following steps:
searching an incoming wave direction at the current azimuth angle of an antenna plate of the terminal equipment, and obtaining a target incoming wave direction angle according to a search result;
controlling the antenna board to rotate from the current azimuth angle to the target incoming wave azimuth angle, then performing synchronization and base station access operation by adopting electric phased array beam scanning, and if the synchronization and the base station access are successful, recording the signal quality of the millimeter waves corresponding to the target incoming wave direction angle;
if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target is not met, after the antenna plate is controlled to rotate within the conical scanning range of the electric phase control array of the antenna plate in a preset proportion, the steps are repeated to obtain the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target;
if the preset condition for finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is met, selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all the recorded target incoming wave direction angles;
and controlling the antenna plate to rotate to the azimuth corresponding to the target signal quality value.
2. The millimeter wave antenna direction control method according to claim 1, wherein the searching for the incoming wave direction at the current azimuth angle of the antenna board of the terminal device comprises:
and obtaining the direction angle of the incoming wave by adopting an angle spectrum or coherent estimation.
3. The millimeter wave antenna direction control method according to claim 2, wherein the obtaining of the target incoming wave direction angle according to the search result comprises:
if the search result includes a plurality of incoming wave direction angles, the target incoming wave direction angle is an incoming wave direction angle corresponding to a maximum possible incoming wave direction in the plurality of incoming wave direction angles.
4. The millimeter wave antenna direction control method according to claim 1, wherein the obtaining of the target incoming wave direction angle according to the search result further comprises:
and if no incoming wave direction angle exists in the search result, taking the current azimuth angle of the antenna board as the target incoming wave direction angle.
5. The millimeter wave antenna direction control method according to claim 1, wherein the preset condition for ending the acquisition of the signal quality of the millimeter wave corresponding to the next target incoming wave direction angle is:
the accumulated rotation angle of the antenna plate in the antenna direction control process is more than or equal to one circle; or
And the signal quality of the millimeter waves corresponding to the target incoming wave direction angle is greater than the preset signal quality value.
6. The millimeter wave antenna direction control method according to claim 1, wherein the preset ratio is greater than or equal to 1/2 and less than or equal to 1.
7. The millimeter wave antenna direction control method according to claim 6, wherein the preset ratio is 1 or 2/3.
8. A millimeter wave antenna direction control apparatus disposed in a terminal device, the apparatus comprising:
the incoming wave direction angle searching module is used for searching the incoming wave direction in the current azimuth angle of an antenna plate of the terminal equipment and obtaining a target incoming wave direction angle according to a searching result;
the signal quality recording module is used for controlling the antenna board to rotate from the current azimuth angle to the target incoming wave azimuth angle, then carrying out synchronization and base station access operation by adopting electric phased array beam scanning, and recording the signal quality of the millimeter waves corresponding to the target incoming wave direction angle if the synchronization and the base station access are successful;
the rotating module is used for controlling the antenna plate to rotate a conical scanning range of the electric phased array of the antenna plate in a preset proportion if a preset condition for finishing obtaining the signal quality of the millimeter wave corresponding to the incoming wave direction angle of the next target is not met;
the circular control module is used for controlling the antenna plate to rotate within a preset proportion of the conical scanning range of the electric phased array of the antenna plate, and then repeatedly executing the steps corresponding to the circular control module to obtain the signal quality of the millimeter waves corresponding to the incoming wave direction angle of the next target;
the azimuth angle selection module is used for selecting a target signal quality value and an azimuth angle corresponding to the target signal quality value from the signal qualities of the millimeter waves corresponding to all the recorded target incoming wave direction angles if the preset condition of finishing obtaining the signal quality of the millimeter waves corresponding to the next target incoming wave direction angle is met;
and the base station access module is used for controlling the antenna plate to rotate to the azimuth corresponding to the target signal quality value.
9. A terminal device provided with a millimeter wave antenna board, characterized in that the device comprises: a memory storing a computer program and a processor running the computer program to implement the method of any one of claims 1 to 7.
10. A computer-readable storage medium for storing a computer-readable program for causing a computer to perform the method of any one of claims 1 to 7.
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