CN114976637A - Antenna control method, antenna module and communication equipment - Google Patents
Antenna control method, antenna module and communication equipment Download PDFInfo
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- CN114976637A CN114976637A CN202210718240.XA CN202210718240A CN114976637A CN 114976637 A CN114976637 A CN 114976637A CN 202210718240 A CN202210718240 A CN 202210718240A CN 114976637 A CN114976637 A CN 114976637A
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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
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the application relates to an antenna control method, an antenna module and communication equipment, wherein the antenna control method comprises the following steps: when the signal intensity of the communication equipment is smaller than a first intensity threshold value, acquiring field intensity distribution information of a communication environment where the communication equipment is located; determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment; and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold value. Based on the method, the peak gain of the communication equipment in a specific direction can be improved, and the communication quality of the communication equipment for receiving and transmitting signals in the current communication environment is further improved.
Description
Technical Field
The embodiment of the application relates to the technical field of radio frequency, in particular to an antenna control method, an antenna module and communication equipment.
Background
With the rapid increase of information volume, the demand of users for communication equipment is increasing. However, in the process of communicating with the peer device, the communication quality often changes with the location of the peer device, the shielding of the building, and other reasons. In some cases, the above situation may even cause a noticeable stuck phenomenon during communication, thereby greatly affecting the user experience.
Disclosure of Invention
In view of the above, it is desirable to provide an antenna control method, an antenna module and a communication device capable of improving communication quality.
In a first aspect, the present application provides an antenna control method, including:
when the signal intensity of the communication equipment is smaller than a first intensity threshold value, acquiring field intensity distribution information of a communication environment where the communication equipment is located;
determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment;
and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold.
In a second aspect, the present application provides an antenna module, including:
a plurality of antennas;
the control module is used for acquiring field intensity distribution information of a communication environment where the communication equipment is located when the signal intensity of the communication equipment is smaller than a first intensity threshold value; determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment; and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold.
In a third aspect, the present application provides a communication device comprising the antenna module as described above.
The antenna control method can judge whether the communication equipment is in a weak signal scene according to the current signal strength of the communication equipment and the first strength threshold. And when the communication device is judged to be in a weak signal scene, selecting multiple corresponding antennas according to the communication environment to form a target antenna array, and determining the target phase of each antenna, so that signals transmitted and received by the multiple antennas in the target antenna array are effectively superposed, the peak gain of the communication device in a specific direction is improved, and the communication quality of the communication device in the current communication environment for transmitting and receiving signals is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an application environment diagram of an antenna control method according to an embodiment;
fig. 2 is a flowchart of an antenna control method according to an embodiment;
FIG. 3 is one of the schematic antenna positions of a communication device;
fig. 4 is a diagram illustrating an embodiment of controlling a scanning antenna array to perform beam scanning according to a plurality of scanning phase combinations to obtain electric field intensities in a plurality of directions; acquiring a flow chart of field intensity distribution information according to electric field intensities in multiple directions;
FIG. 5 is a flowchart illustrating steps for determining a target antenna array based on field strength distribution information and a predetermined radiation pattern for each antenna according to one embodiment;
fig. 6 is a flowchart of determining target phases corresponding to respective sub-antennas in the target antenna array according to an embodiment;
FIG. 7 is a flowchart illustrating steps for determining a target antenna array based on a target radiation direction and a predetermined radiation pattern for each antenna, in accordance with one embodiment;
FIG. 8 is a second schematic diagram of the antenna position of a communication device;
fig. 9 is a flowchart of determining a target antenna array according to a target radiation direction and a preset radiation pattern of each candidate antenna according to an embodiment;
fig. 10 is a schematic structural diagram of an antenna module according to an embodiment;
fig. 11 is an internal configuration diagram of a communication device of an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first intensity threshold may be referred to as a second intensity threshold, and similarly, a second intensity threshold may be referred to as a first intensity threshold, without departing from the scope of the present application. The first intensity threshold and the second intensity threshold are both intensity thresholds, but they are not the same intensity threshold.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, e.g., one, two, etc., unless specifically limited otherwise.
Fig. 1 is an application environment diagram of an antenna control method according to an embodiment, and referring to fig. 1, the antenna control method provided in the embodiment of the present application may be applied to the application environment shown in fig. 1. Wherein, the communication device 102 communicates with the peer device 104 through an antenna. The communication device 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things devices, and portable wearable devices. The Internet of things equipment can be an intelligent sound box, an intelligent television, an intelligent air conditioner, intelligent vehicle-mounted equipment and the like. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, and the like. The peer device 104 may be, but is not limited to, a base station, a router, etc.
Fig. 2 is a flowchart of an antenna control method according to an embodiment, which is described in the present application by taking the method as an example for being applied to the communication device 102 in fig. 1. The Antenna types include, but are not limited to, an IFA Antenna (Inverted-F Antenna) or a PIFA Antenna (Planar Inverted-F-shaped Antenna). Referring to fig. 2, the antenna control method includes steps 202 to 206.
Wherein the signal strength of the communication device corresponds to the functionality supported by the antenna. For example, if the antenna is a WIFI antenna, the signal strength is the current WIFI signal strength of the communication device.
In particular, the signal strength is used to evaluate the current communication quality of the communication device. Alternatively, the Signal Strength may be a specific numerical value of an evaluation index such as Received Signal Strength (RSSI) and Received power, or may be a Strength level divided by a preset rule. Illustratively, if the signal strength includes four strength levels, the signal strength is displayed on the user interface from weak to strong as one, two, three and four grids. The first intensity threshold is set in correspondence with the manner of setting the signal intensity. For example, it may be determined that the current signal strength is less than the first strength threshold when the strength level is one or two. The first intensity threshold may be a signal intensity that can guarantee a basic communication function, for example, a function of instantly receiving and sending text messages. The first intensity threshold may also be adaptively adjusted according to the current traffic demand of the communication device, which may be determined according to the type of the application currently running on the communication device. For example, if the currently running application is an e-book type application, it may be determined that the traffic demand is low, and a lower first intensity threshold may be set.
Wherein the target antenna array comprises at least two antennas of the communication device. The field intensity distribution information refers to distribution information of the electric field intensity. It is understood that the electric field intensity of the region closer to the signal emission source is larger, that is, the direction of the counterpart device can be known based on the field intensity distribution information. Accordingly, in the communication process, if the signal gain of the opposite terminal device in the direction is increased, the signal quality of the communication device in the current communication environment can be effectively improved. Therefore, based on the hardware structure of multiple antennas, by controlling at least some of the antennas to transmit and receive signals simultaneously at a target phase, signals in some directions can obtain constructive interference, and signals in other directions can obtain destructive interference, so as to achieve control of the signal transmitting and receiving directions, which may also be referred to as Beamforming (Beamforming). The target phases of different antennas in the target antenna array may be the same or different, and are determined according to the actual communication environment.
Illustratively, fig. 3 is a schematic diagram of antenna positions of a communication device, and referring to fig. 3, the communication device includes two antennas, ANT1 and ANT 2. Table 1 shows peak gains of the ANT1 and ANT2 after the patterns are superimposed when the ANT1 and ANT2 are combined at different phases, and referring to table 1, Port1 indicates the phase where ANT1 transmits and receives a signal, and Port2 indicates the phase where ANT2 transmits and receives a signal. For example, if the phases of the ANT1 and ANT2 transmission and reception signals are both 0, the peak gain of the superimposed field pattern of ANT1 and ANT2 simultaneously transmitting and receiving signals in the form of an antenna array is 0.664dBi, that is, the gain of the superimposed field pattern in the maximum gain direction is 0.664 dBi. When the phase of the ANT1 transmission/reception signal is 0 and the phase of the ANT2 transmission/reception signal is 90, the peak gain of the superimposed field pattern is 2.95dBi, which is increased by 2.286dBi compared with the peak gain of the (0,0) phase combination. Therefore, the peak gain of the target antenna array can be effectively improved by determining the appropriate target phase for each antenna, so that the communication quality of the communication equipment can be improved.
TABLE 1 peak gain after superposition of patterns at different combination phases for ANT1 and ANT2
Specifically, interference can occur between signals radiated by different antennas, wherein if constructive interference of the signals exists in the direction of the opposite terminal device, the signal strength of the communication device can be improved. Moreover, the higher the matching degree between the direction of the constructive interference and the direction of the opposite-end device is, the higher the signal intensity is when the communication device communicates with the opposite-end device. For example, each antenna may be controlled to operate at a corresponding target phase by generating a phase modulation signal. Specifically, the phase modulation signal is used for being transmitted to the phase modulation module connected with each branch antenna so as to instruct the phase modulation module to perform corresponding phase modulation. The phase modulation module may include a plurality of phase shifters, and the respective antennas of the communication device are connected to the respective phase shifters in a one-to-one correspondence. Each phase shifter is used for respectively receiving phase modulation signals carrying corresponding target phase information and carrying out phase modulation on signals transmitted and received by the connected antennas according to the target phase information, so that the directions of constructive interference and destructive interference of the signals are adjusted. It should be noted that, when the target antenna array only includes a part of antennas of the communication device, the remaining antennas of the communication device may be used for receiving other signals, or may not receive signals, and this embodiment is not limited in this embodiment.
In this embodiment, based on a simpler antenna structure, by the above antenna control method, it can be determined whether the communication device is in a weak signal scene according to the current signal strength of the communication device and the first strength threshold. And when the communication equipment is judged to be in a weak signal scene, selecting multiple corresponding antennas according to the communication environment to form a target antenna array, and determining the target phase of each antenna, so that signals transmitted and received by the multiple antennas in the target antenna array are effectively superposed, the peak gain of the communication equipment in a specific direction is improved, the communication quality of the communication equipment for transmitting and receiving signals in the current communication environment is improved, and the communication requirements of users are met. It should be noted that the present embodiment does not limit the reason why the signal strength of the communication device is smaller than the first strength threshold. For example, the reason for the insufficient signal strength may be that only one antenna is currently transmitting and receiving signals, or a communication environment changes when multiple antennas transmit and receive signals together, but as long as the communication device includes multiple antennas, at least part of the antennas of the communication device may be controlled by using the antenna control method of this embodiment.
In one embodiment, the acquiring field intensity distribution information of a communication environment in which the communication device is located includes the following steps: controlling a scanning antenna array to perform beam scanning according to a plurality of scanning phase combinations so as to obtain electric field strengths in a plurality of directions, wherein the plurality of directions are respectively in one-to-one correspondence with the plurality of scanning phase combinations, the scanning antenna array comprises at least two antennas of communication equipment, and the scanning phase combinations comprise phases in one-to-one correspondence with the antennas in the scanning antenna array; and acquiring field intensity distribution information according to the electric field intensities in a plurality of directions.
The beam scanning refers to a process of detecting signal intensities in multiple directions in a communication environment by changing a signal receiving direction of a scanning antenna array. Specifically, by changing the phase of each antenna in the scanning antenna array, the present embodiment can implement adjustment of the signal receiving direction. Taking the example that the scanning antenna array includes two antennas ANT1 and ANT2, the processor first controls ANT1 and ANT2 to transmit and receive signals with the scanning phase combination (α 1, β 1) to obtain the electric field strength in one direction, then controls ANT1 and ANT2 to transmit and receive signals with the scanning phase combination (α 2, β 2) to obtain the electric field strength in the other direction, and so on until the detection of the electric field strengths in all directions to be scanned is completed. It will be appreciated that the number of antennas in the scanning antenna array and the number of scanning phase combinations can be set according to the requirement of scanning accuracy. For example, in the case where the requirement for scanning accuracy is high, a larger number of antennas are selected for scanning, or a larger number of scanning phase combinations are set. In this embodiment, by matching a plurality of antennas in the scanning antenna array, the field intensity distribution information can be accurately obtained without increasing the complexity of each antenna unit.
It will be appreciated that in the ideal case where the antenna is not obscured, the scanning results obtained by beam scanning are affected only by the communication environment. That is, even if different antennas are selected to form the scanning antenna array, the signal strength of the same direction obtained by scanning should be the same. Thus, in the ideal case described above, no special selection of antennas in the scanning antenna array is required, and any antenna in the communication device can be used to form the scanning antenna array. However, in the non-ideal case that part of the antennas are blocked, multiple antennas which are not blocked should be selected to form a scanning antenna array, so as to ensure the accuracy of the field intensity distribution information. In this embodiment, the multiple antennas that are not blocked may be determined in any manner, which is not limited herein. For example, the holding position of the user can be determined according to the touch position of the screen, so as to determine whether the antenna is blocked.
Fig. 4 is a diagram illustrating an embodiment of controlling a scanning antenna array to perform beam scanning according to a plurality of scanning phase combinations to obtain electric field intensities in a plurality of directions; referring to fig. 4, the steps described above include steps 402 to 408 in one embodiment.
Illustratively, the first angular range may be a 360 ° range, and the plurality of directions includes six directions, up, down, left, right, front, and rear, of the communication device. Taking the communication device as a mobile phone as an example, for convenience of the following description, a three-dimensional coordinate is established with the mobile phone as a center. The up direction is a direction pointing from the microphone to the receiver, and may be defined as a (0, 1, 0) direction. The down direction refers to a direction pointing from the earpiece to the microphone and may be defined as a (0, -1, 0) direction. The front direction refers to a direction pointing from the rear cover to the display screen, and may be defined as a (0,0, -1) direction. The rear direction refers to a direction pointing from the display screen to the rear cover, and may be defined as a (0,0, 1) direction. The left direction may be defined as the (-1, 0,0) direction. The right direction is opposite to the left direction and can be defined as a (1, 0,0) direction.
The second angle range is smaller than the first angle range, and the second angle range at least covers the direction corresponding to the maximum value in the plurality of first electric field strengths.
The number of the second scanning phase combinations is larger than that of the first scanning phase combinations. For example, if the direction corresponding to the maximum value of the first electric field strength is the left direction, 9 directions of (-1, 0,0), (-1, 0, 1), (-1, 1, 1), (-1, 0, 1), (-1, -1, 0), (-1, -1, -1), (-1, 0, -1) and (-1, 1, -1) can be further scanned by beams, so as to obtain a finer scanning result.
And step 408, acquiring field intensity distribution information according to the plurality of second electric field intensities.
In this embodiment, based on the plurality of first electric field strengths, the location direction of the peer device may be preliminarily determined, and the location direction of the peer device may be located in the second angle range. Through adopting more second scanning phase place combination of quantity, can carry out the higher beam scanning of density to a plurality of directions in the second angle range to reduce the angle range that needs the scanning, obtain comparatively accurate scanning result with faster beam scanning speed, and then obtain accurate field intensity distribution information.
Further, interpolation calculation may be performed on the electric field intensities in the plurality of directions obtained by the beam scanning to obtain the electric field intensities in the undetected directions. Furthermore, data fitting can be carried out on the electric field intensity in multiple directions obtained by beam scanning so as to obtain a field intensity distribution diagram. Based on the steps, more accurate field intensity distribution information can be obtained, and therefore the accuracy of selecting the target antenna array and calculating the target phase is improved. The embodiments of the present application are not limited to the specific contents of the interpolation algorithm and the data fitting algorithm.
In one embodiment, the determining the target antenna array according to the field intensity distribution information includes the following steps: and determining a target antenna array according to the field intensity distribution information and the preset radiation patterns of all the antennas.
The preset radiation pattern can be understood as the inherent property of the antenna, and the preset radiation pattern does not change under the condition that the structure of the antenna is not changed. The preset radiation pattern can be stored in a memory in advance before the communication equipment leaves a factory, and can be directly called by a processor when needed, so that the target antenna array can be determined quickly and accurately. Specifically, multiple antennas forming the target antenna array may be determined, and then the target phase of each antenna may be determined. For example, the field intensity distribution information may be matched with a preset radiation pattern, and it is determined that the antenna with higher similarity between the preset radiation pattern and the field intensity distribution information constitutes the target antenna array. For example, the target antenna array may be formed by multiple antennas with similarity greater than a similarity threshold. As another example, multiple antennas with high similarity between preset radiation patterns may be selected to form the target antenna array, so as to improve the peak gain after the patterns are superimposed. For another example, when there is a higher similarity between the preset radiation patterns of a greater number of antennas, the preset radiation patterns of the antennas may be further matched with the field strength distribution information, so as to determine that some of the antennas constitute the target antenna array.
It is understood that in other embodiments, multiple antennas forming the target antenna array and the target phase of each antenna may be determined simultaneously. For example, traversal calculation may be performed according to preset radiation patterns and selectable phase combinations of all antennas to obtain the superposed patterns in various combination modes, so that a combination mode with the highest matching degree with field intensity distribution information among a plurality of superposed patterns may be determined to form a target antenna array, and a target phase of each antenna may be determined.
Fig. 5 is a flowchart illustrating steps of determining a target antenna array according to field intensity distribution information and a preset radiation pattern of each branch antenna, referring to fig. 5, wherein the steps include steps 502 to 505 in one embodiment.
The target radiation direction is an incoming wave direction of the signal, and the target radiation direction can also be understood as a direction of the opposite-end device. Therefore, the direction in which the signal intensity is the greatest in the field intensity distribution information can be acquired as the target radiation direction. For example, if the data processing method of fitting data to the electric field intensities in a plurality of directions obtained by beam scanning is adopted, the maximum signal intensity may be determined from a fitting curve obtained by fitting data, and the target radiation direction corresponding to the maximum signal intensity may be estimated from the fitting curve.
Step 504, determining a target antenna array according to the target radiation direction and the preset radiation patterns of the antennas.
In this embodiment, the gains of the antenna in various directions can be obtained according to the preset radiation pattern. Therefore, it can be determined that the antenna with the larger gain in the target radiation direction constitutes the target antenna array, thereby improving the communication quality of the target antenna array.
Fig. 6 is a flowchart illustrating an embodiment of determining target phases corresponding to respective sub-antennas in the target antenna array, and referring to fig. 6, in one embodiment, the steps include steps 602 to 604.
Specifically, the frequencies of the signals transmitted and received by the respective antennas in the target antenna array are the same, but the preset timings of the transmitted signals are not completely the same. For example, at a preset timing, it is possible that a peak position of a signal transmitted by one antenna corresponds to a valley position of a signal transmitted by another antenna. It is understood that, based on the interference principle of waves, when the peak positions of a plurality of signals coincide, the plurality of signals constructively interfere, so that a maximum amplitude can be generated, which is equal to the sum of the amplitudes of the signals. Therefore, it is necessary to adjust the phase of each signal based on a predetermined timing so that the peaks of the signals transmitted by the respective antennas coincide with each other. Accordingly, the target phase difference when adjusting each signal is determined by the preset timing. Taking the example of the target antenna array including three antennas, the target phase difference may be that the phase of the ANT2 transmit signal is 30 ° later than the phase of the ANT1 transmit signal, and the phase of the ANT3 transmit signal is 15 ° later than the phase of the ANT2 transmit signal.
Wherein a difference between the target phases satisfies the target phase difference. That is, the target phase of each antenna can be determined from the target phase difference. For example, taking the phase difference obtained in the previous step as an example, it can be determined that the phase of the ANT1 radiation signal is 0 °, the phase of the ANT2 radiation signal is 30 °, and the phase of the ANT3 radiation signal is 45 °. It is understood that, although the multiple antennas in the target antenna array may generate constructive interference based on the predetermined phase difference, the maximum gain direction of the signal after constructive interference is determined by the predetermined radiation pattern and amplitude of each antenna. Therefore, it is necessary to determine the maximum gain direction after constructive interference based on the preset radiation pattern of each antenna. Moreover, the amplitude of the signal radiated by each antenna can be determined according to the preset radiation pattern and the target radiation direction, so that the maximum gain direction of the target antenna array can be more accurately adjusted, and the maximum gain direction of the target antenna array can point to the target radiation direction. It should be noted that the pointing of the maximum gain direction of the target antenna array to the target radiation direction includes that the maximum gain direction of the target antenna array coincides with the target radiation direction, and also includes that an included angle between the maximum gain direction and the target radiation direction is smaller than an angle error threshold. Therefore, in this step, the target phase and amplitude of each antenna can be further determined based on the preset radiation pattern, so that the signals after constructive interference superposition accurately point to the target radiation direction, and further higher signal gain is obtained, and the communication quality of the communication device is improved.
Fig. 7 is a flowchart illustrating steps of determining a target antenna array according to a target radiation direction and a predetermined radiation pattern of each antenna according to an embodiment, and referring to fig. 7, the steps include steps 702 to 704.
In step 702, multiple antennas located on the same side are determined as candidate antennas.
The middle frame of the communication equipment comprises a plurality of sides which are connected in a circumferential closed mode. In particular, due to the antenna structure, multiple antennas located on the same side typically have more similar patterns. Fig. 8 is a second schematic diagram of antenna positions of a communication device, and referring to fig. 8, the communication device includes three antennas, ANT1, ANT2, and ANT 3. Table 2 shows peak gains of the superimposed patterns when ANT1 and ANT3 are in different combination phases, and referring to table 1, Port1 indicates the phase in which ANT1 transmits and receives a signal, and Port3 indicates the phase in which ANT3 transmits and receives a signal. For example, if the phases of the ANT1 and ANT3 transmission and reception signals are both 0, the peak gain of a pattern formed by superimposing the ANT1 and ANT3 transmission and reception signals in an antenna array is 0.721 dBi. When the phase of the ANT1 transmission/reception signal is 0 and the phase of the ANT3 transmission/reception signal is 90, the peak gain of the superimposed field pattern is 1.52dBi, which is increased by only 0.799dBi compared with the peak gain of the (0,0) phase combination. As can be seen from a comparison between tables 1 and 2, the antenna position has a large influence on the peak gain after the field pattern superposition, and the maximum peak gain of the antenna combination using ANT1 and ANT3 is still 1.43dBi smaller than that of the antenna combination using ANT1 and ANT2, which results in an insignificant improvement in communication quality when ANT1 and ANT3 work together. Therefore, in this embodiment, by selecting multiple antennas located on the same side as the candidate antennas and determining the target antenna array from the candidate antennas, the calculation amount required for determining the target antenna array can be effectively reduced on the premise of not affecting the calculation result, so as to improve the operation efficiency of the antenna control method.
TABLE 2 peak gain after superposition of patterns from ANT1 and ANT3 when combined at different phases
Fig. 9 is a flowchart of determining a target antenna array according to a target radiation direction and a preset radiation pattern of each candidate antenna according to an embodiment, referring to fig. 9, in one embodiment, the step includes step 902 and includes at least one of step 904 and step 906.
And step 902, when the number of the alternative antennas is more than two, acquiring the remaining power of the communication device.
Specifically, since the target antenna array needs to include at least two antennas, if only two alternative antennas are provided, all the alternative antennas may be selected to form the target antenna array. However, if the number of the alternative antennas is greater than two, some or all of the antennas may be selected to form the target antenna array, so that the antennas are controlled more flexibly. It is understood that the larger the number of antennas in the target antenna array, the greater the power consumption of the target antenna array, but the better the directivity of the transmitting and receiving signals. Therefore, appropriate antenna selection can be performed according to the current remaining power, thereby effectively balancing the relationship between power consumption and communication quality.
And 904, when the residual electric quantity is smaller than the electric quantity threshold value, selecting two alternative antennas to form the target antenna array according to the target radiation direction and the preset radiation field pattern of each alternative antenna.
And step 906, when the remaining power is greater than or equal to the power threshold, selecting all the alternative antennas to form a target antenna array.
Specifically, if the remaining power is less than the power threshold, two alternative antennas are selected to form the target antenna array, so that the communication quality of the communication device is improved to a certain extent on the premise of not excessively increasing the power consumption. If the remaining power is greater than or equal to the power threshold, the maximum number of available antennas can be selected to achieve the best network performance and improve the user experience.
In one embodiment, the number of antennas in the target antenna array may be determined according to gain information in the target radiation direction. For example, a gain threshold may be used as an evaluation index, and if the gain of the target antenna array including two antennas in the target radiation direction is greater than or equal to the gain threshold, the target antenna array may be formed by only using the two antennas. For another example, if the difference between the gain of the target antenna array including n antennas in the target radiation direction and the gain of the target antenna array including n +1 antennas in the target radiation direction is smaller than the gain difference threshold, it indicates that the improvement of increasing the gain of the antennas for the target antenna array in the target radiation direction is not great, and the target antenna array may be formed by only using n antennas.
In one embodiment, the antenna control method further includes the steps of: and when the signal strength of the communication equipment is greater than or equal to a second strength threshold value, controlling one target antenna in the multiple antennas of the communication equipment to transmit and receive signals, wherein the second strength threshold value is greater than the first strength threshold value, and the signal strength of the target antenna is greater than or equal to the first strength threshold value. Specifically, if the signal strength of the communication device is greater than or equal to the second strength threshold, it indicates that the current communication environment is better, and even if the signal is transmitted and received through only one antenna, the communication requirement of the user can be satisfied. Therefore, the communication equipment is switched to the working state of single-antenna communication, so that the power consumption of the communication equipment is reduced, and the standby time of the communication equipment is prolonged.
It should be understood that, although the steps in the flowcharts are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in each flowchart may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
Fig. 10 is a schematic structural diagram of an antenna module according to an embodiment, and referring to fig. 10, in an embodiment, the antenna module includes a plurality of antennas and a control module. The control module is used for acquiring field intensity distribution information of a communication environment where the communication equipment is located when the signal intensity of the communication equipment is smaller than a first intensity threshold value; determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment; and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold.
In this embodiment, by adopting the above structure and the control logic of the control module, it can be determined whether the communication device is in a weak signal scene according to the current signal strength of the communication device and the first strength threshold. And when the communication device is judged to be in a weak signal scene, selecting multiple corresponding antennas according to the communication environment to form a target antenna array, and determining the target phase of each antenna, so that signals transmitted and received by the multiple antennas in the target antenna array are effectively superposed, the peak gain of the communication device in a specific direction is improved, and the communication quality of the communication device for transmitting and receiving signals in the current communication environment is improved.
In one embodiment, the control module is further configured to generate a phase modulation signal according to the target antenna array, and the antenna module further includes a phase modulation module, where the phase modulation module is connected to each antenna and the control module, respectively. The phase modulation module is used for receiving the phase modulation signal, and modulating the phase of each antenna when receiving and transmitting the signal according to the phase modulation signal to be a corresponding target phase, so that each antenna in the target antenna array simultaneously receives and transmits the signal with each target phase in one-to-one correspondence. The phase modulation module may include a plurality of phase shifters, and the plurality of phase shifters are respectively connected to the plurality of antennas in a one-to-one correspondence manner. Furthermore, a matching circuit can be connected between the phase shifter and the corresponding antenna to realize impedance matching and improve the radio frequency performance of the antenna module.
In one embodiment, an antenna control apparatus is provided and includes a field intensity distribution acquisition module, a target array determination module, and a signal generation module. The field intensity distribution acquisition module is used for acquiring field intensity distribution information of a communication environment where the communication equipment is located when the signal intensity of the communication equipment is smaller than a first intensity threshold value. The target array determining module is used for determining a target antenna array according to the field intensity distribution information and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment. The signal generating module is used for controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be larger than or equal to the first intensity threshold value.
In one embodiment, the antenna control apparatus further includes a single-antenna control module for controlling one target antenna of the multiple antennas of the communication device to transmit and receive signals when the signal strength of the communication device is greater than or equal to a second strength threshold, the second strength threshold is greater than the first strength threshold, and the signal strength of the target antenna is greater than or equal to the first strength threshold.
The division of the modules in the antenna control apparatus is only for illustration, and in other embodiments, the antenna control apparatus may be divided into different modules as needed to complete all or part of the functions of the antenna control apparatus. For specific limitations of the antenna control device, reference may be made to the above limitations of the antenna control method, which are not described herein again. The modules in the antenna control device can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the communication device, and can also be stored in a memory in the communication device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a communication device is provided, which comprises the antenna module.
In one embodiment, the communication device further comprises a middle frame comprising a plurality of sides connected circumferentially closed. Wherein, at least two antennas of the antenna module are positioned on the same side. In this embodiment, by positioning at least two antennas at the same side, the field similarity between the multiple antennas at the same side can be improved, so as to improve the directivity of the superimposed field and improve the signal strength when the multiple antennas at the same side form the target antenna array.
In one embodiment, the angle between the maximum gain directions of at least two antennas located on the same side is less than 45 °. Specifically, by adjusting an included angle between maximum gain directions of at least two antennas located on the same side, the field pattern similarity of the two antennas can be made higher, so that the directivity of the superimposed field pattern is better, and the signal strength when the multiple antennas located on the same side form the target antenna array is further improved.
In one embodiment, a communication device is provided, which includes a plurality of antennas, a phase modulation module, a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method when executing the computer program.
In one embodiment, a communication device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 11. The communication device comprises a processor, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the communication device is configured to provide computing and control capabilities. The memory of the communication device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the communication device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement an antenna control method. The display screen of the communication equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the communication equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the communication equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the configuration shown in fig. 11 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the communication device to which the present application applies, and that a particular communication device may include more or less components than those shown in the figures, or combine certain components, or have a different arrangement of components.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of the above-described method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases involved in the embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments presented herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.
Claims (13)
1. An antenna control method, comprising:
when the signal intensity of the communication equipment is smaller than a first intensity threshold value, acquiring field intensity distribution information of a communication environment where the communication equipment is located;
determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one to one, wherein the target antenna array comprises at least two antennas of the communication equipment;
and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold.
2. The antenna control method according to claim 1, wherein the obtaining of the field intensity distribution information of the communication environment in which the communication device is located includes:
controlling a scanning antenna array to perform beam scanning according to a plurality of scanning phase combinations to acquire electric field strengths in a plurality of directions, wherein the plurality of directions are respectively in one-to-one correspondence with the plurality of scanning phase combinations, the scanning antenna array comprises at least two antennas of the communication equipment, and the scanning phase combinations comprise phases in one-to-one correspondence with each antenna in the scanning antenna array;
and acquiring the field intensity distribution information according to the electric field intensities in a plurality of directions.
3. The antenna control method according to claim 2, wherein the control scanning antenna array performs beam scanning according to a plurality of scanning phase combinations to obtain electric field strengths in a plurality of directions; acquiring the field intensity distribution information according to the electric field intensities in a plurality of directions, wherein the acquisition comprises the following steps:
controlling the scanning antenna array to perform beam scanning according to a plurality of first scanning phase combinations so as to acquire first electric field intensities in a plurality of directions within a first angle range;
determining a second angle range according to the plurality of first electric field strengths, wherein the second angle range is smaller than the first angle range;
controlling the scanning antenna array to perform beam scanning according to a plurality of second scanning phase combinations to obtain second electric field strengths in a plurality of directions within a second angle range, wherein the number of the second scanning phase combinations is greater than that of the first scanning phase combinations;
and acquiring the field intensity distribution information according to a plurality of second electric field intensities.
4. The antenna control method of claim 1, wherein the determining a target antenna array according to the field strength distribution information comprises:
and determining the target antenna array according to the field intensity distribution information and the preset radiation patterns of all the antennas.
5. The antenna control method according to claim 4, wherein the determining the target antenna array according to the field intensity distribution information and the preset radiation pattern of each branch antenna comprises:
determining a target radiation direction according to the field intensity distribution information, wherein the target radiation direction is an incoming wave direction of a signal;
and determining the target antenna array according to the target radiation direction and the preset radiation pattern of each antenna.
6. The antenna control method according to claim 5, wherein the determining the target antenna array according to the target radiation direction and the preset radiation pattern of each antenna comprises:
determining multiple antennas positioned on the same side as alternative antennas, wherein a middle frame of the communication equipment comprises multiple sides which are connected in a circumferential closed mode;
and determining the target antenna array according to the target radiation direction and the preset radiation pattern of each alternative antenna.
7. The antenna control method according to any one of claims 1 to 6, wherein the determining each target phase corresponding to each branch antenna in the target antenna array includes:
determining a target phase difference according to a preset time sequence of the signals transmitted and received by each branch antenna in the target antenna array so as to generate constructive interference when the signals transmitted and received by each branch antenna have the target phase difference;
and determining each target phase according to the target phase difference, wherein the difference value between the target phases meets the target phase difference.
8. The antenna control method according to any one of claims 1 to 6, wherein the controlling of the branch antennas in the target antenna array to simultaneously transmit and receive signals at each of the target phases in a one-to-one correspondence includes:
and generating a phase modulation signal according to the target antenna array, wherein the phase modulation signal is used for controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals in each target phase in one-to-one correspondence.
9. An antenna module, comprising:
a plurality of antennas;
the control module is used for acquiring field intensity distribution information of a communication environment where the communication equipment is located when the signal intensity of the communication equipment is smaller than a first intensity threshold value; determining a target antenna array according to the field intensity distribution information, and determining each target phase corresponding to each antenna in the target antenna array one by one, wherein the target antenna array comprises at least two antennas of the communication equipment; and controlling each branch antenna in the target antenna array to simultaneously transmit and receive signals with each target phase in one-to-one correspondence so as to enable the signal intensity of the communication equipment to be greater than or equal to the first intensity threshold.
10. The antenna module of claim 9, wherein the control module is further configured to generate a phase modulation signal according to the target antenna array, and further comprising:
and the phase modulation module is respectively connected with the control module and each antenna, and is used for receiving the phase modulation signal and modulating the phase of each antenna for receiving and transmitting the signal according to the phase modulation signal to be the corresponding target phase, so that each antenna in the target antenna array simultaneously receives and transmits the signal with each target phase in one-to-one correspondence.
11. A communication device, characterized in that it comprises an antenna module according to claim 9 or 10.
12. The communications device of claim 11, further comprising:
the middle frame comprises a plurality of sides which are connected in a circumferential closed mode;
at least two antennas of the antenna module are positioned on the same side.
13. A communications device according to claim 11 wherein the angle between the directions of maximum gain of at least two antennas on the same side is less than 45 °.
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| CN115664625A (en) * | 2022-12-13 | 2023-01-31 | 北京紫光青藤微***有限公司 | Clock phase determination method and device, near field communication equipment and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115664625A (en) * | 2022-12-13 | 2023-01-31 | 北京紫光青藤微***有限公司 | Clock phase determination method and device, near field communication equipment and readable storage medium |
| CN115664625B (en) * | 2022-12-13 | 2023-03-10 | 北京紫光青藤微***有限公司 | Clock phase determining method and device, near field communication equipment and readable storage medium |
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