Wireless communication control method and apparatus using element error fitting of millimeter wave array antenna

Abstract

This invention provides a wireless communication control method and apparatus utilizing element error fitting of a millimeter-wave array antenna. The method includes: identifying anomalous element positions based on the synchronization relationship between the received signal sequences of each element obtained from the downlink reference signal received by the millimeter-wave array antenna during normal communication, thus obtaining anomalous elements; constructing local spatial response difference features based on the first received signal of the anomalous element in the received signal sequence and the second received signal of the normal element in the received signal sequence; fitting the offset of each anomalous element relative to the ideal element response based on the projection behavior of the local spatial response difference features in the spatial angular domain, thus obtaining the element error morphology; and activating redundant antenna subarrays if the element error morphology indicates that the millimeter-wave array antenna does not meet preset beam pointing conditions. This invention improves the robustness and stability of millimeter-wave communication systems under complex hardware conditions.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a wireless communication control method and apparatus that utilizes the element error fitting of a millimeter-wave array antenna. Background Technology

[0002] In millimeter-wave wireless communication systems, large-scale array antenna structures are typically employed to improve signal coverage and transmission reliability. A common approach in existing technologies is to pre-calibrate the amplitude and phase response characteristics of each array element and then compensate for transmitted or received signals during communication based on this calibration data to suppress element errors caused by manufacturing tolerances, temperature drift, or aging. However, this method relies on offline calibration and cannot reflect the dynamic error changes of array elements under actual operating conditions in real time. Especially in high-frequency millimeter-wave communication scenarios, environmental disturbances and hardware non-ideals significantly exacerbate the time-varying characteristics of array element responses, causing static calibration-based compensation strategies to fail, resulting in serious problems such as beam pointing offset, gain reduction, and channel estimation distortion. Therefore, how to achieve online sensing and effective suppression of element errors without relying on offline calibration has become an urgent technical challenge. Summary of the Invention

[0003] This invention provides a wireless communication control method and apparatus that utilizes the element error fitting of a millimeter-wave array antenna. It aims to solve the problems of beam pointing offset and gain degradation caused by the inability of static calibration to adapt to dynamic errors, and improve the robustness and stability of millimeter-wave communication systems under complex hardware conditions.

[0004] In a first aspect, the present invention provides a wireless communication control method utilizing element error fitting of a millimeter-wave array antenna, comprising: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, the received signal sequence of each array element is obtained, and the abnormal array element position is identified based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thus obtaining the abnormal array element. Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, local spatial response difference features are constructed. Based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, the offset of each abnormal array element relative to the ideal array element response is fitted to obtain the array element error morphology. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

[0005] In a second aspect, the present invention also provides a wireless communication control device for fitting the element error of a millimeter-wave array antenna, applied to the wireless communication control method for fitting the element error of a millimeter-wave array antenna as described in the first aspect; the wireless communication control device includes: The abnormal array element location module is used to obtain the received signal sequence of each array element based on the downlink reference signal received by the millimeter wave array antenna during normal communication, and to identify the abnormal array element position based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thereby obtaining the abnormal array element. The response difference construction module is used to construct local spatial response difference features based on the first received signal of the abnormal array element in the received signal sequence and the second received signal of the normal array element in the received signal sequence. The error morphology analysis module is used to fit the offset of each abnormal array element relative to the response of the ideal array element based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, so as to obtain the array element error morphology. An array switching module is used to enable redundant antenna subarrays to maintain communication connection with the target user if the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions.

[0006] Thirdly, the present invention also provides an electronic device, comprising: a memory for storing computer software programs; and a processor for reading and executing the computer software programs, thereby realizing the wireless communication control method described above for fitting the array element error of a millimeter-wave array antenna.

[0007] Fourthly, the present invention also provides a non-transitory computer-readable storage medium storing a computer software program, which, when executed by a processor, implements the wireless communication control method described above for fitting the element error of a millimeter-wave array antenna.

[0008] Fifthly, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the wireless communication control method described above for fitting the element error of a millimeter-wave array antenna.

[0009] The wireless communication control method based on element error fitting of a millimeter-wave array antenna provided in this invention utilizes the downlink reference signal received during normal communication of the millimeter-wave array antenna to obtain the received signal sequence of each element, eliminating the need for additional offline calibration. By leveraging the synchronization relationship between the signals of each element, abnormal elements are identified and their locations determined, achieving real-time preliminary localization of element anomalies and solving the problem of not being able to identify element anomalies in real time. Based on the first received signal of the abnormal element and the second received signal of the normal element, a local spatial response difference feature is constructed by comparing the two. This feature is then projected and fitted in the spatial angle domain, transforming the abstract response difference into a quantifiable element error shape, achieving accurate perception of element dynamic errors and solving the problem that static calibration cannot reflect element dynamic errors. The method determines whether the element error shape meets preset beam pointing conditions. If not, redundant antenna subarrays are activated to maintain communication with the target user, completing a closed loop of error suppression and communication stability assurance, mitigating the potential communication interruption risk after static calibration compensation failure. Therefore, the embodiments of the present invention do not rely on offline calibration. They can complete the online sensing and effective suppression of pair element errors by using only the downlink reference signal in the normal communication process. This solves the problems of beam pointing offset, gain reduction and channel estimation distortion caused by static calibration's inability to adapt to dynamic errors, and improves the robustness and stability of millimeter-wave communication systems under complex hardware conditions. Attached Figure Description

[0010] Figure 1 This is a flowchart illustrating the wireless communication control method using element error fitting of a millimeter-wave array antenna provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the wireless communication control device that utilizes the element error fitting of a millimeter-wave array antenna according to an embodiment of the present invention. Figure 3 An embodiment diagram of the electronic device provided in this invention; Figure 4 An embodiment diagram of a computer-readable storage medium provided in accordance with the present invention. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0013] In the description of this invention, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

[0014] Optional, see below Figure 1 , Figure 1 This is a flowchart illustrating the wireless communication control method using element error fitting of a millimeter-wave array antenna provided by the present invention. In this embodiment, the execution entity of the wireless communication control method using element error fitting of a millimeter-wave array antenna is a communication control device. Therefore, the wireless communication control method using element error fitting of a millimeter-wave array antenna includes: Step 10: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, obtain the received signal sequence of each array element, and identify the abnormal array element position based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thereby obtaining the abnormal array element.

[0015] Optionally, the communication control device acquires the downlink reference signal received by the millimeter-wave array antenna during normal communication. The normal communication process refers to a stable data transmission state between the millimeter-wave array antenna and the target user, without any abnormalities such as significant communication interruption or severe signal attenuation. The downlink reference signal refers to a specific signal sent by the base station and used by the millimeter-wave array antenna for auxiliary communication such as channel estimation and synchronization calibration. This signal has a fixed signal format, transmission period, and power parameters.

[0016] Furthermore, based on the downlink reference signal obtained above, the communication control device acquires the received signal sequence of each array element. Here, an array element refers to the basic unit in the millimeter-wave array antenna used to receive and transmit electromagnetic wave signals, and each array element independently completes the signal reception work. The received signal sequence refers to the signal set formed by a single array element continuously receiving the downlink reference signal within a continuous time range. This set contains key information such as the signal amplitude and phase corresponding to each time point. By sampling the receiving channel of each array element in the millimeter-wave array antenna in real time, the received signal sequence of all array elements is acquired synchronously to ensure the time synchronization of the received signal sequence of each array element.

[0017] In one embodiment, the millimeter-wave array antenna comprises 16 elements. A communication control device controls the millimeter-wave array antenna to communicate normally with the target user. The base station continuously transmits a downlink reference signal according to a preset period (e.g., 10 milliseconds). The center frequency of the downlink reference signal is 28 GHz, the signal bandwidth is 100 MHz, and the power is 10 dBm. The communication control device activates the receiving channel of each element and continuously samples the downlink reference signal received by each element at a sampling frequency of 100 MHz for a sampling duration of 1 second. Finally, the received signal sequences corresponding to each of the 16 elements are obtained. Each received signal sequence contains 100,000 sampling points, and each sampling point corresponds to a signal amplitude and phase information. The received signal sequences of the 16 elements are synchronized with the transmission period of the downlink reference signal.

[0018] Furthermore, after obtaining the received signal sequence of each array element, the communication control device identifies the location of the abnormal array element based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, and obtains the abnormal array element as described in steps 101 to 104.

[0019] Step 20: Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, construct local spatial response difference features.

[0020] Optionally, the communication control device extracts the first received signal of the abnormal array element in the received signal sequence. The first received signal refers to the relevant signal segment in the received signal sequence corresponding to the abnormal array element, which is used to construct the local spatial response difference characteristics. This signal segment must contain the core feature information of the received signal of the abnormal array element. At the same time, the communication control device extracts the second received signal of the normal array element in the received signal sequence. The normal array element refers to the array element that is not abnormal in step 10. The second received signal refers to the signal segment in the received signal sequence corresponding to the normal array element that is in the same time interval as the first received signal and has the same signal length, ensuring the comparability of the first received signal and the second received signal.

[0021] Furthermore, based on the first received signal and the second received signal, the communication control device constructs local spatial response difference characteristics, specifically as described in steps 201 to 205.

[0022] Step 30: Based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, fit the offset of each abnormal array element relative to the ideal array element response to obtain the array element error morphology.

[0023] Optionally, the communication control device performs spatial angle domain projection processing on the local spatial response difference characteristics. Here, the spatial angle domain refers to the angular range centered on the millimeter-wave array antenna, used to describe the signal propagation direction and spatial distribution. The projection behavior refers to mapping the local spatial response difference characteristics onto this spatial angle domain to obtain the distribution of the characteristics at different spatial angles. Then, based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, the communication control device fits the offset of each abnormal array element relative to the ideal array element response, obtaining the array element error shape, as described in steps 301 to 304.

[0024] Step 40: If the array element error morphology indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

[0025] Optionally, the communication control device judges the array element error pattern to determine whether it indicates that the millimeter-wave array antenna meets the preset beam pointing conditions. The preset beam pointing conditions refer to the conditions that the beam emitted by the millimeter-wave array antenna can accurately point to the target user, and the beam's gain, directivity, and other parameters meet the requirements of normal communication. Specifically, when all abnormal array element offsets corresponding to the array element error pattern are within the preset allowable range, the millimeter-wave array antenna is indicated to meet the preset beam pointing conditions, and no additional operation is required to maintain the current communication state. When any abnormal array element offset corresponding to the array element error pattern exceeds the preset allowable range, the millimeter-wave array antenna is indicated to not meet the preset beam pointing conditions, and remedial measures need to be taken to maintain the communication connection. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, the communication control device will activate the redundant antenna subarray to maintain the communication connection with the target user. The redundant antenna subarray refers to the backup array element combination pre-set in the millimeter-wave array antenna to deal with the abnormal array element situation. The array elements in this subarray are all in normal working condition, and their quantity and arrangement can meet the beam pointing requirements of normal communication. Activating the redundant antenna subarray specifically means that the communication control device cuts off the signal channel where the abnormal array element is located, switches to the signal channel corresponding to the redundant antenna subarray, controls the redundant antenna subarray to receive and transmit signals, adjusts the beam pointing to the direction of the target user, ensures that the communication connection between the millimeter-wave array antenna and the target user is not interrupted, and maintains stable communication quality.

[0026] Continuing with the above embodiment, the millimeter-wave array antenna comprises 16 array elements. The preset beam pointing condition is that the offset of all array elements does not exceed 0.5 degrees. In the array element error pattern obtained by the communication control device in step 30, three abnormal array elements have offsets of 0.8 degrees, 0.9 degrees, and 1 degree, respectively, all exceeding the preset allowable range, indicating that the millimeter-wave array antenna does not meet the preset beam pointing condition. This millimeter-wave array antenna is pre-configured with a redundant antenna subarray containing four normal array elements. The arrangement of this subarray matches the main array, enabling normal communication with the target user. After detecting the above situation, the communication control device immediately cuts off the receiving and transmitting channels of the three abnormal array elements, activates the signal channel of the redundant antenna subarray, controls the redundant antenna subarray to receive the downlink reference signal sent by the base station and the uplink signal of the target user, and simultaneously adjusts the beam pointing of the redundant antenna subarray to accurately point to the target user, ensuring a continuous and stable communication connection and avoiding problems such as communication interruption and signal attenuation.

[0027] The embodiments of the present invention do not rely on offline calibration. They can complete the online sensing and effective suppression of pair element errors by using only the downlink reference signal in the normal communication process. This solves the problems of beam pointing offset, gain reduction and channel estimation distortion caused by the inability of static calibration to adapt to dynamic errors, and improves the robustness and stability of millimeter wave communication systems under complex hardware conditions.

[0028] Optionally, the processes of steps 101 to 104 include: Step 101: Calculate the instantaneous phase difference between adjacent array elements based on the instantaneous phase values ​​of two adjacent array elements at the same time in the received signal sequence, and obtain the phase difference sequence.

[0029] Optionally, the communication control device extracts the instantaneous phase value at the same moment in each received signal sequence based on the received signal sequence of each array element. The instantaneous phase value refers to the phase parameter corresponding to each sampling point in the received signal sequence, reflecting the phase state of the signal at that moment, and its value ranges from 0 degrees to 360 degrees. Two adjacent array elements refer to two array elements in the millimeter-wave array antenna that are adjacent in a linear arrangement order. "Same moment" refers to the moment when all array elements are at the same sampling time point in their received signal sequences, ensuring that the extracted instantaneous phase values ​​are time-synchronized. For each pair of adjacent array elements, the difference between the instantaneous phase values ​​of the adjacent array elements at the same moment is calculated to obtain the instantaneous phase difference between the adjacent array elements at that moment. The instantaneous phase difference between adjacent array elements refers to the difference between the instantaneous phase values ​​of the received signals of two adjacent array elements at the same moment. The calculation method is to subtract the instantaneous phase value of the previous array element from the instantaneous phase value of the latter array element. If the calculation result is negative, 360 degrees is added to ensure that the phase difference value ranges between 0 degrees and 360 degrees.

[0030] The communication control device performs the above-mentioned instantaneous phase difference calculation for all adjacent array elements at all times in the received signal sequence. The instantaneous phase differences of adjacent array elements at different times of the same adjacent array element group are arranged in chronological order to obtain the phase difference sequence corresponding to the adjacent array element group. The phase difference sequence refers to the ordered set of instantaneous phase differences of adjacent array elements at all times within a continuous time range of the same adjacent array element group. This set can reflect the changing pattern of the instantaneous phase difference between adjacent array elements.

[0031] Step 102: Based on the phase difference sequence and the ideal phase difference values ​​corresponding to the physical spacing between adjacent array elements in the millimeter-wave array antenna and the system operating wavelength, point-by-point difference calculation is performed to obtain the phase deviation sequence.

[0032] Optionally, the communication control device acquires the physical spacing between adjacent array elements in the millimeter-wave array antenna. The physical spacing refers to the straight-line distance between the centers of two adjacent array elements. This distance is an inherent parameter of the millimeter-wave array antenna, determined during antenna design and manufacturing, and can be directly read from a preset parameter storage module. Simultaneously, the communication control device acquires the system operating wavelength of the millimeter-wave array antenna. The system operating wavelength refers to the signal wavelength used by the millimeter-wave array antenna for normal communication. This wavelength is determined by the system operating frequency, calculated as the speed of light divided by the system operating frequency. The speed of light is taken as 3 * 10⁸ meters per second, and the system operating frequency is a preset operating parameter of the millimeter-wave array antenna.

[0033] Based on the physical distance between adjacent array elements and the system operating wavelength obtained above, the communication control device calculates the ideal phase difference value. The ideal phase difference value refers to the instantaneous phase difference value that two adjacent array elements should have when receiving the same downlink reference signal under normal operating conditions. The calculation method is to multiply the physical distance between adjacent array elements by 360 degrees and then divide by the system operating wavelength. The result is the ideal phase difference value, which is a fixed value and corresponds to the phase difference standard when adjacent array elements are operating normally.

[0034] For each phase difference sequence obtained in sub-step 101, the communication control device performs point-by-point difference calculation between each instantaneous phase difference value in the phase difference sequence and the ideal phase difference value calculated above. That is, for each data point in the phase difference sequence, the instantaneous phase difference value corresponding to the data point is subtracted from the ideal phase difference value to obtain the phase deviation value corresponding to the data point. The phase deviation values ​​corresponding to all data points are arranged in chronological order to obtain the phase deviation sequence corresponding to the adjacent array elements.

[0035] Among them, the phase deviation sequence refers to the ordered set of deviations between the instantaneous phase difference and the ideal phase difference value at all times within a continuous time range of the same adjacent array elements. This set can reflect the degree and variation law of the phase difference between adjacent array elements deviating from the ideal state.

[0036] Step 103: Based on the phase deviation sequence and the preset phase deviation allowable interval, perform event detection to obtain the target element position corresponding to the phase deviation out-of-bounds event.

[0037] Optionally, the allowable phase deviation range refers to the range within which the phase deviation value between adjacent array elements is allowed. This range is a preset fixed range, set by technicians based on factors such as the working performance and communication quality requirements of the millimeter-wave array antenna. The upper and lower limits of the range are specific angular values, such as 0 degrees to 5 degrees. Phase deviation values ​​exceeding this range are considered abnormal deviation values.

[0038] For each phase deviation sequence obtained in sub-step 102, the communication control device performs event detection. Event detection refers to judging each phase deviation value in the phase deviation sequence and detecting whether it exceeds the preset phase deviation allowable range. If the phase deviation value at a certain moment exceeds the preset phase deviation allowable range, it is determined that a phase deviation out-of-bounds event has occurred at that moment. Here, a phase deviation out-of-bounds event refers to an event in which the phase deviation between adjacent array elements exceeds the allowable range, indicating that there may be an anomaly in the adjacent array element group.

[0039] For each detected phase deviation out-of-bounds event, the communication control device determines the target element position corresponding to the event. The target element position refers to the specific position of the element that may be abnormal in the adjacent element group where the phase deviation out-of-bounds event occurred. Since the phase deviation out-of-bounds event is caused by the phase difference between two adjacent elements, the target element position corresponding to the event is the position of the two elements in the adjacent element group. The specific position information of the two elements corresponding to each phase deviation out-of-bounds event is recorded.

[0040] Step 104: Based on the linear arrangement order of each array element in the millimeter-wave array antenna, detect the number of times each target array element position occurs in the phase deviation out-of-bounds event, obtain the out-of-bounds occurrence number of each array element, and identify the abnormal array element position based on the out-of-bounds occurrence number of each target array element position, thus obtaining the abnormal array element.

[0041] Optionally, the communication control device acquires the linear arrangement order of each array element in the millimeter-wave array antenna. The linear arrangement order refers to the order in which all array elements in the millimeter-wave array antenna are arranged in a preset straight line direction. This order is a fixed order determined during antenna design and can be directly read through a preset parameter storage module.

[0042] Based on the above linear arrangement, the communication control device counts the target element positions corresponding to all phase deviation out-of-bounds events, detects the number of times each target element position appears in all phase deviation out-of-bounds events, that is, counts the total number of times the position information of each element is recorded as the target element position, and obtains the number of out-of-bounds occurrences for each element. The number of out-of-bounds occurrences refers to the number of times a single element is associated with a phase deviation out-of-bounds event. The more times it occurs, the greater the possibility that the element is abnormal.

[0043] The communication control device identifies abnormal array element positions based on the number of out-of-bounds occurrences at each target array element position, and obtains the abnormal array elements, as detailed in steps 1041 to 1044.

[0044] This invention eliminates the need for additional offline calibration. By utilizing the received signal sequence acquired during normal communication and through stepwise calculation and statistical analysis of phase difference and phase deviation, it achieves real-time and accurate identification of abnormal array element positions, solving the problem of being unable to identify array element anomalies in real time. At the same time, event detection ensures the accuracy and reliability of abnormal array element identification, providing the abnormal array element positions for determining array element error patterns and ensuring communication stability. This improves the real-time response capability of millimeter-wave communication systems to array element anomalies and enhances the robustness and stability of millimeter-wave communication systems under complex hardware conditions.

[0045] Optionally, the process of steps 1041 to 1044 includes: Step 1041: The array element corresponding to the target array element position where the number of out-of-bounds occurrences is greater than the deviation out-of-bounds number threshold is taken as the phase out-of-bounds array element. Based on the phase out-of-bounds array element and the amplitude response value sequence of each array element in the received signal sequence at the downlink reference signal subcarrier, the difference in amplitude response value between the phase out-of-bounds array element and its left and right adjacent array elements at the same subcarrier position is calculated to obtain the amplitude response deviation of each phase out-of-bounds array element.

[0046] Optionally, the deviation out-of-bounds number threshold refers to the standard for determining whether an array element is a phase out-of-bounds array element based on the number of out-of-bounds occurrences. This threshold is a preset fixed value, set by technicians according to the working characteristics of the millimeter-wave array antenna, communication quality requirements, and array element anomaly determination accuracy requirements, and is used to distinguish between normal accidental out-of-bounds occurrences and abnormal frequent out-of-bounds occurrences of array elements.

[0047] The communication control device compares the number of out-of-bounds occurrences of each array element obtained in step 104 with the preset deviation out-of-bounds number threshold. The array element corresponding to the target array element position with an out-of-bounds occurrence count greater than the deviation out-of-bounds number threshold is determined to be a phase out-of-bounds array element. The phase out-of-bounds array element refers to the array element that is initially determined to have phase correlation anomalies due to the excessive number of out-of-bounds occurrences. The probability of its anomaly is much higher than that of the array element whose out-of-bounds occurrence count does not exceed the threshold.

[0048] The communication control device extracts the amplitude response value sequence of each array element in the received signal sequence at the downlink reference signal subcarrier. Here, the downlink reference signal subcarrier refers to the signal carrier in the downlink reference signal that carries signal information and is divided according to a fixed frequency interval. Each downlink reference signal contains multiple subcarriers. The amplitude response value refers to the ratio of the output signal amplitude to the input signal amplitude when the array element receives the corresponding subcarrier signal, which is used to characterize the array element's receiving gain capability for that subcarrier signal. The amplitude response value sequence refers to the ordered set of amplitude response values ​​of a single array element at all subcarrier positions of the downlink reference signal, arranged in the frequency order of the subcarriers, which can reflect the receiving gain characteristics of the array element at different subcarrier frequencies.

[0049] For each phase-crossing array element, the communication control device determines its left and right adjacent array elements. The left and right adjacent array elements refer to the array elements immediately to the left and right of the phase-crossing array element in the linear arrangement sequence of the millimeter-wave array antenna. If the phase-crossing array element is the first array element in the linear arrangement, only the array element immediately to its right is taken as the adjacent array element; if the phase-crossing array element is the last array element in the linear arrangement, only the array element immediately to its left is taken as the adjacent array element.

[0050] The communication control device calculates the difference in amplitude response values ​​between each phase-crossing array element and its left and right adjacent array elements at the same subcarrier position. The calculation method in this embodiment of the invention is as follows: For each phase-crossing array element, select the amplitude response value corresponding to each subcarrier position in its amplitude response value sequence, subtract the amplitude response values ​​of its left and right adjacent array elements at the same subcarrier position, take the absolute value of the two differences, and then calculate the average of the two absolute values. This average value is the amplitude response value difference at the subcarrier position. Arrange the amplitude response value differences of the phase-crossing array element at all subcarrier positions in subcarrier order to obtain the amplitude response deviation of the phase-crossing array element. The amplitude response deviation refers to the set of amplitude response differences between the phase-crossing array element and its adjacent normal array elements at each subcarrier position, which is used to characterize the degree of deviation of the phase-crossing array element from the normal array element in amplitude reception characteristics.

[0051] Step 1042: Determine the upper limit of amplitude response deviation based on the amplitude response deviation of each phase out-of-bounds array element and the preset upper limit of local amplitude response deviation, and obtain the amplitude response deviation array element.

[0052] Optionally, the upper limit of local amplitude response deviation refers to the maximum allowable difference in amplitude response value between phase-crossing array elements and adjacent array elements. This upper limit is a preset fixed value, set by technicians according to the array element performance and amplitude response stability requirements of the millimeter-wave array antenna. An amplitude response deviation exceeding this upper limit indicates that there is an amplitude response anomaly in the array element. The communication control device determines the upper limit of amplitude response deviation for each phase-crossing array element. Optionally, the determination method in this embodiment of the invention is as follows: check the amplitude response value difference corresponding to each subcarrier position in the amplitude response deviation of the phase-crossing array element one by one. If the amplitude response value difference of at least one subcarrier position is greater than the preset upper limit of local amplitude response deviation, then the phase-crossing array element is determined to be an amplitude response deviation array element. If the amplitude response value difference of all subcarrier positions in the amplitude response deviation of the phase-crossing array element is less than or equal to the preset upper limit of local amplitude response deviation, then the phase-crossing array element is determined to be a non-amplitude response deviation array element. Finally, all array elements determined to be amplitude response deviation array elements are summarized to obtain an amplitude response deviation array element set. Here, an amplitude response deviation array element refers to an array element that has both phase-crossing anomaly and amplitude response deviation anomaly.

[0053] Step 1043: Based on the amplitude response deviation array element and the time-domain received signal power value of each array element in the received signal sequence, calculate the peak-to-peak value of the received signal power for each amplitude response deviation array element.

[0054] Optionally, the communication control device extracts the time-domain received signal power value of each array element in the received signal sequence. The time-domain received signal power value refers to the power of the received signal at each time point in the received signal sequence. This value is calculated from the amplitude value of the received signal by squaring the amplitude value of the received signal. It is used to characterize the intensity of the received signal at different times. The time-domain received signal power value is a parameter synchronously acquired when acquiring the received signal sequence in step 10.

[0055] For each amplitude response deviation array element, the communication control device calculates the peak-to-peak value of its received signal power. The peak-to-peak value of the received signal power refers to the difference between the maximum and minimum power values ​​in the time-domain received signal power value sequence of the amplitude response deviation array element. The calculation method is as follows: first, from all the time-domain received signal power values ​​of the amplitude response deviation array element, the largest power value (i.e., peak power) and the smallest power value (i.e., valley power) are selected. Then, the valley power is subtracted from the peak power, and the difference is the peak-to-peak value of the received signal power of the amplitude response deviation array element. This value is used to characterize the degree of fluctuation of the received signal power of the array element. The greater the fluctuation, the more unstable the working state of the array element.

[0056] Step 1044: Array elements whose amplitude response deviation exceeds the preset power fluctuation threshold when the received signal power peak-to-peak value is identified as abnormal array elements.

[0057] Optionally, the power fluctuation threshold refers to the maximum allowable fluctuation value of the amplitude response deviating from the peak-to-peak value of the received signal power of the array element. It is a preset fixed value set by technicians according to the communication stability requirements and signal transmission quality standards of the millimeter-wave array antenna. The peak-to-peak value of the power exceeding this threshold indicates that the array element has a serious abnormal operating state, which will affect the communication quality.

[0058] The communication control device compares the peak-to-peak value of the received signal power of each amplitude response deviation array element with a preset power fluctuation threshold. If the peak-to-peak value of the received signal power of an amplitude response deviation array element is greater than the preset power fluctuation threshold, the array element is determined to have a serious abnormality and is identified as an abnormal array element. If the peak-to-peak value of the received signal power of an amplitude response deviation array element is less than or equal to the preset power fluctuation threshold, the abnormality of the array element is determined not to meet the standard of affecting communication and is not identified as an abnormal array element. Finally, all amplitude response deviation array elements determined to be abnormal are summarized to obtain the abnormal array element set, thus completing the final identification of abnormal array elements.

[0059] This invention enables accurate identification of abnormal array elements, avoiding misjudgments caused by relying solely on phase cross-boundary determination. It improves the accuracy and reliability of abnormal array element identification, providing accurate abnormal array elements for constructing local spatial response difference characteristics and fitting array element error morphology. This enables millimeter-wave communication systems to achieve accurate online identification of array element anomalies without relying on offline calibration, solving the problem that static calibration cannot adapt to dynamic errors and is difficult to accurately identify abnormal array elements. It also improves the robustness and stability of millimeter-wave communication systems under complex hardware conditions.

[0060] Optionally, the process of steps 201 to 205 includes: Step 201: Based on the first received signal and the second received signal, combine three consecutive array elements with the abnormal array element as the center and one normal array element on each side to obtain a three-element array element group.

[0061] Optionally, the communication control device selects one normal array element on each side of the abnormal array element as the center, forming a continuous three-element array combination to obtain a three-element array group. A continuous three-element array group refers to three array elements that are adjacent to each other in the linear arrangement of the millimeter-wave array antenna; that is, the center element is the abnormal array element, the element immediately to its left is a normal array element, and the element immediately to its right is a normal array element. If the abnormal array element is the first array element in the linear arrangement of the millimeter-wave array antenna, only the two normal array elements immediately to its right are selected to form a continuous three-element array combination with the abnormal array element. If the abnormal array element is the last array element in the linear arrangement of the millimeter-wave array antenna, only the two normal array elements immediately to its left are selected to form a continuous three-element array combination with the abnormal array element. If the array element immediately to the left or right of the abnormal array element is also an abnormal array element, the nearest normal array element is selected sequentially to ensure that all elements in the three-element array group except the center element are normal array elements, and each abnormal array element corresponds to an independent three-element array group.

[0062] Step 202: Based on the linear uniform physical arrangement of the three-element array and the millimeter-wave array antenna, analyze the geometric symmetry positional relationship between the two normal array elements on the left and right relative to the abnormal array elements to obtain the geometric symmetry relationship.

[0063] Optionally, the communication control device acquires the linear uniform physical arrangement parameters of the millimeter-wave array antenna. The linear uniform physical arrangement refers to the arrangement of all array elements in the millimeter-wave array antenna in the same straight line direction with fixed equal physical spacing. This arrangement is a fixed arrangement determined during antenna design and manufacturing. The linear uniform physical arrangement parameters include core parameters such as the arrangement direction of the array elements and the fixed physical spacing between adjacent array elements. These arrangement parameters can be directly read through a preset parameter storage module.

[0064] For each three-element array group, the communication control device analyzes the geometric symmetry positional relationship between the two normal array elements on the left and right sides and the central abnormal array element, based on the aforementioned linear uniform physical arrangement parameters, to obtain the geometric symmetry relationship. The geometric symmetry positional relationship refers to the symmetrical position of the two normal array elements on the left and right sides relative to the central abnormal array element in physical space. Since the millimeter-wave array antenna is linearly uniformly arranged and the physical distance between adjacent array elements is fixed, the specific geometric symmetry positional relationship between the two normal array elements on the left and right sides and the central abnormal array element is as follows: the physical distance from the left normal array element to the central abnormal array element is equal to the physical distance from the right normal array element to the central abnormal array element, and the two normal array elements are located on either side of the central abnormal array element, exhibiting a symmetrical distribution. This is achieved by calculating the physical distances from the two normal array elements to the central abnormal array element.

[0065] Step 203: For the signal segment in the received signal sequence that corresponds to the downlink reference signal, the conjugate symmetry of the trajectory of the second received signal of the left and right normal array elements in the complex plane within the signal segment is compared based on the geometric symmetry relationship to obtain the complex plane symmetry state.

[0066] Optionally, the communication control device extracts a signal segment corresponding to the downlink reference signal from the received signal sequence. The signal segment refers to a continuous signal segment in the received signal sequence that specifically corresponds to the downlink reference signal. This signal segment completely corresponds to the transmission period and signal length of the downlink reference signal and can fully reflect the characteristics of the array element receiving the downlink reference signal. It can be identified by recognizing the fixed signal format of the downlink reference signal.

[0067] For each three-element array group, the communication control device, based on the geometric symmetry of the positional relationship, compares the conjugate symmetry of the trajectories of the second received signals of the left and right normal array elements in the aforementioned signal segment on the complex plane to obtain the complex plane symmetry state. Here, the complex plane refers to the plane used to characterize complex signals with the real number axis as the horizontal axis and the imaginary number axis as the vertical axis. The trajectory of the second received signal on the complex plane refers to the continuous trajectory formed by drawing each sampling point of the second received signal as a complex number (the real part is the signal amplitude and the imaginary part is the signal phase) sequentially on the complex plane. Conjugate symmetry means that the trajectories of the second received signals of the two normal array elements on the complex plane are symmetrical about the real number axis, that is, any point on one trajectory can find a corresponding conjugate point on the other trajectory (the real parts are equal and the imaginary parts are opposites).

[0068] Optionally, the comparison method in this embodiment of the invention is as follows: extract the second received signal of each sampling point of the two normal array elements in the signal segment one by one, convert it into coordinate points on the complex plane, check whether the coordinate points of the corresponding sampling points of the two array elements satisfy the conjugate symmetry relationship. If all corresponding sampling points satisfy the conjugate symmetry relationship, the complex plane symmetry state is completely symmetrical; if some sampling points satisfy the conjugate symmetry relationship and some do not, the complex plane symmetry state is partially symmetrical; if all sampling points do not satisfy the conjugate symmetry relationship, the complex plane symmetry state is asymmetrical.

[0069] Step 204: Based on the complex plane symmetry state and the first received signal of the abnormal array element in the same signal segment, identify the geometric deviation relationship between the trajectory of the first received signal on the complex plane and the trajectory of the conjugate symmetry center, and obtain the complex plane deviation relationship.

[0070] Optionally, for each three-element array group, the communication control device determines the conjugate symmetry center trajectory of the second received signals of the left and right normal array elements on the complex plane based on the complex plane symmetry state. The conjugate symmetry center trajectory refers to the continuous trajectory formed by the conjugate symmetry centers corresponding to the trajectories of the second received signals of the left and right normal array elements on the complex plane. If the complex plane symmetry state is completely symmetrical, the conjugate symmetry center trajectory is the trajectory of the perpendicular bisector of the two trajectories. If the complex plane symmetry state is partially symmetrical, the conjugate symmetry center trajectory is the center trajectory corresponding to the sampling points that satisfy the conjugate symmetry relationship. If the complex plane symmetry state is asymmetrical, the conjugate symmetry center trajectory is obtained by fitting the sampling points that satisfy the approximate conjugate symmetry.

[0071] The communication control device extracts the first received signal of the abnormal array element in the three-element array within the same signal segment, and converts each sampling point of the first received signal into a coordinate point on the complex plane, forming the trajectory of the first received signal on the complex plane. Subsequently, the communication control device identifies the geometric deviation relationship between this trajectory and the aforementioned conjugate symmetry center trajectory, obtaining the complex plane deviation relationship. Here, the geometric deviation relationship refers to the positional deviation between the trajectory of the first received signal on the complex plane and the conjugate symmetry center trajectory, including core information such as deviation direction, deviation distance, and deviation degree. By calculating the straight-line distance between each sampling point on the trajectory of the first received signal and the corresponding point on the conjugate symmetry center trajectory, and summarizing all distance information, a complex plane deviation relationship that can completely characterize the deviation between the two is obtained.

[0072] Step 205: Based on the complex plane deviation relationship and the continuous symbol position of the signal segment in the time dimension, construct local spatial response difference features.

[0073] Optionally, the communication control device determines the continuous symbol positions of the signal segment in the time dimension. The continuous symbol positions refer to the sequential positions of each sampling point within the signal segment on the time axis. Each symbol position corresponds to a specific time point, and the sequential arrangement of these positions forms a continuous sequence that reflects the distribution of the signal segment in the time dimension. Subsequently, the communication control device constructs local spatial response difference features based on the complex plane deviation relationship and the continuous symbol positions, as detailed in steps 2051 to 2054.

[0074] This invention uses the signal characteristics of normal array elements as a benchmark. Through geometric symmetry and complex plane trajectory analysis, it accurately quantifies the spatial response differences between abnormal and normal array elements, realizes the scientific construction of local spatial response difference characteristics, effectively supports the accurate perception of array element dynamic errors, improves the online error perception system that does not rely on offline calibration, solves the problem that static calibration cannot reflect array element dynamic errors, and enhances the high robustness and high stability of millimeter-wave communication systems under complex hardware conditions.

[0075] Optionally, the process of steps 2051 to 2054 includes: Step 2051: Based on the complex plane deviation relationship and the continuous symbol position of the signal segment in the time dimension, determine the continuity of the trajectory shape of the complex plane deviation relationship on the continuous symbols, and obtain the deviation trajectory shape.

[0076] Optionally, the communication control device associates the complex plane deviation relationship with the continuous symbol positions one by one, that is, it binds the deviation information (deviation direction, deviation distance) corresponding to each sampling point in the complex plane deviation relationship with the continuous symbol positions of that sampling point in the signal segment, so as to ensure that each symbol position has corresponding deviation information. Subsequently, the communication control device determines the continuity of the trajectory shape of the complex plane deviation relationship on continuous symbols, obtaining the deviation trajectory shape. Trajectory shape continuity refers to whether the changes in the deviation trajectory corresponding to the complex plane deviation relationship at the continuous symbol positions are coherent and without abrupt changes. The deviation trajectory shape refers to the overall change characteristics and presentation form of the deviation trajectory. The determination method is as follows: The deviation information corresponding to two adjacent symbol positions is compared one by one, and the difference between the change angle of the deviation direction and the deviation distance between adjacent symbol positions is calculated. If the change angle of the deviation direction of adjacent symbol positions is less than a preset angle threshold and the difference in deviation distance is less than a preset distance threshold, then the deviation trajectory of that adjacent symbol position is determined to be continuous. If the deviation trajectories of all adjacent symbol positions are continuous, the deviation trajectory shape is continuous. If some adjacent symbol positions have discontinuous or partially continuous deviation trajectories, the deviation trajectory shape is semi-continuous. If all adjacent symbol positions have discontinuous deviation trajectories, the deviation trajectory shape is discrete. The preset angle threshold and preset distance threshold are preset fixed values, set by technicians according to the determination accuracy of the complex plane deviation trajectory and the requirements of array element anomaly characteristics, used to distinguish between continuous and discontinuous trajectory states.

[0077] Step 2052: Based on the deviation trajectory morphology and the beam pointing configuration of the millimeter-wave array antenna, determine the consistency of the repeated occurrence of the deviation trajectory morphology under different beam pointing configurations, and obtain the deviation reproduction characteristics.

[0078] Optionally, the communication control device acquires the beam pointing configuration of the millimeter-wave array antenna. The beam pointing configuration refers to the set of beam pointing parameters used by the millimeter-wave array antenna to achieve signal transmission, including core parameters such as beam pointing angle, beamwidth, and beam gain. This configuration is adjusted or preset in real time by the communication control device according to factors such as the location of the target user and the communication environment.

[0079] Based on the deviation trajectory pattern and the aforementioned beam pointing configuration, the communication control device determines the consistency of the repeated occurrence of the deviation trajectory pattern under different beam pointing configurations, thereby obtaining the deviation reproducibility characteristics. Here, different beam pointing configurations refer to the various different configuration states formed after the communication control device adjusts the beam pointing angle, beamwidth, and other parameters of the millimeter-wave array antenna, including at least three different beam pointing angle configurations; the consistency of repeated occurrence refers to whether the same deviation trajectory pattern can be stably repeated under different beam pointing configurations. Optionally, the determination method in this embodiment of the invention is as follows: the communication control device sequentially switches the beam pointing configuration of the millimeter-wave array antenna. Under each configuration, the complex plane deviation relationship of the abnormal array element is re-acquired, the corresponding deviation trajectory pattern is determined, the number of occurrences of the same deviation trajectory pattern under all different beam pointing configurations is counted, and the ratio of the number of occurrences to the total number of configurations is calculated. If the ratio is greater than a preset consistency threshold, the consistency of repeated occurrence of the deviation trajectory pattern is determined to be high, and the deviation reproduction characteristic is stable reproduction. If the ratio is between the preset consistency threshold and the preset minimum consistency threshold, the consistency of repeated occurrence is determined to be medium, and the deviation reproduction characteristic is unstable reproduction. If the ratio is less than the preset minimum consistency threshold, the consistency of repeated occurrence is determined to be low, and the deviation reproduction characteristic is no reproduction. Wherein, the preset consistency threshold and the preset minimum consistency threshold are both preset fixed values, which are set by technicians according to the determination requirements of deviation reproduction characteristics and the array element error identification accuracy.

[0080] Step 2053: Based on the deviation reproduction characteristics and geometric symmetry relationship, analyze the perturbation direction of the asymmetric response caused by the abnormal array element in the local spatial region to obtain the local dominant perturbation direction.

[0081] Optionally, the deviation reproduction characteristic reflects the stability of the deviation trajectory pattern under different beam pointing configurations. Geometric symmetry refers to the physical spatial symmetry between the two normal array elements on the left and right sides of the three-element array group and the central abnormal array element. Asymmetric response refers to the difference in response between the received signal response of the abnormal array element and the received signal response of the normal array element, which does not satisfy the geometric symmetry relationship.

[0082] The local spatial region refers to the spatial range centered on the three-element array group, covering the three-element array group and a small number of adjacent array elements. This range is determined by the element spacing and beam coverage of the millimeter-wave array antenna. The disturbance direction refers to the direction of signal fluctuation caused by the asymmetric response in the local spatial region.

[0083] Optionally, the communication control device, combining the deviation reproduction characteristics, filters out the complex plane deviation relationship corresponding to the stable reproduction deviation trajectory pattern. Based on the symmetrical distribution law of the left and right normal array elements in the geometric symmetry relationship, it compares the deviation trajectory of the abnormal array element with the conjugate symmetry center trajectory of the normal array element to determine the distribution range of the asymmetric response. Then, based on the changing trend of the position of this distribution range in the local spatial region, it judges the direction of signal fluctuation caused by the asymmetric response. This fluctuation direction is the local dominant disturbance direction. If the deviation reproduction characteristic is stable reproduction, the local dominant disturbance direction is a fixed direction. If the deviation reproduction characteristic is unstable reproduction, the local dominant disturbance direction is a set of multiple directions, among which the direction with the highest frequency is the main disturbance direction. If the deviation reproduction characteristic is no reproduction, a temporary local dominant disturbance direction is obtained by fitting the deviation trajectory pattern under the current beam pointing configuration.

[0084] Step 2054: Based on the local dominant perturbation direction and deviation trajectory morphology, a characterization mapping is performed to obtain the local spatial response difference characteristics.

[0085] Optionally, characterization mapping refers to the process of transforming two physically meaningful parameters—the direction of the local dominant disturbance and the deviation trajectory morphology—into a set of characteristic parameters that can accurately characterize the spatial response differences between abnormal and normal array elements. The communication control device quantizes the direction of the local dominant disturbance, converting it into specific angle values. These angle values ​​are calibrated clockwise from 0 degrees to 360 degrees, based on the linear arrangement direction of the millimeter-wave array antenna. Then, it quantizes the deviation trajectory morphology, converting continuous, semi-continuous, and discrete trajectory morphologies into corresponding quantized values. Simultaneously, information such as the deviation distance and direction variation patterns are converted into supplementary quantized parameters.

[0086] Subsequently, the communication control device merges the quantized local dominant disturbance direction parameters with the deviation trajectory morphology quantization parameters, eliminates redundant parameters, and retains the core parameters that can accurately reflect the spatial response differences, forming a parameter set. This parameter set is the local spatial response difference feature, which can characterize the response difference between abnormal array elements and normal array elements in a local spatial region.

[0087] The embodiments of this invention achieve accurate construction of local spatial response difference features, transforming abstract complex plane deviation information into identifiable feature parameters, providing feature support for the projection fitting of local spatial response difference features in the spatial angle domain, effectively assisting in the accurate perception of array element dynamic errors, improving the online error perception system that does not rely on offline calibration, solving the problem that static calibration cannot reflect array element dynamic errors, and enhancing the high robustness and high stability of millimeter-wave communication systems under complex hardware conditions.

[0088] Optionally, the processes of steps 301 to 304 include: Step 301: Based on the spatial angle range covered by the main serving beam pointing of the millimeter-wave array antenna according to the local spatial response difference characteristics, determine the main beam support range, and select at least two auxiliary beam pointings in the angle region adjacent to the main beam support range based on the preset beam pointing of the millimeter-wave array antenna.

[0089] Optionally, the local spatial response difference feature refers to the set of characteristic parameters that can characterize the spatial response difference between abnormal array elements and normal array elements, constructed by comparing the signals of abnormal array elements and normal array elements; the main service beam pointing refers to the beam pointing of the millimeter-wave array antenna currently used for normal communication with the target user, which is determined according to the real-time location of the target user to ensure the communication quality with the target user.

[0090] The communication control device determines the spatial angle range covered by the main service beam of the millimeter-wave array antenna. This spatial angle range refers to the angular interval within which the main service beam can effectively transmit signals, determined by the beamwidth of the main service beam, which is a preset parameter or a real-time adjustment parameter of the millimeter-wave array antenna. Based on this spatial angle range, the communication control device determines the main beam support range. This main beam support range refers to a sub-interval of spatial angles where the main service beam can stably receive downlink reference signals and where local spatial response differences are representative. This sub-interval is the core part of the spatial angle range covered by the main service beam, eliminating angular areas with severe signal attenuation and indistinct features at the beam edges. The determination method is as follows: with the main service beam pointing angle as the center, the middle 60% to 80% of the spatial angle range covered by the main service beam is selected as the main beam support range. The specific proportion is preset according to beam stability requirements.

[0091] The communication control device acquires the preset beam pointing of the millimeter-wave array antenna. The preset beam pointing refers to multiple beam pointings pre-set by technicians to assist in detecting array element errors. These pointings cover the angular region surrounding the main serving beam pointing, comprehensively capturing the local spatial response differences under different beam directions. Based on the preset beam pointing, at least two auxiliary beam pointings are selected within the angular region adjacent to the main beam support range. The angular region adjacent to the main beam support range refers to the adjacent angular intervals on the left and right sides of the main beam support range, with the width of each adjacent interval matching the width of the main beam support range. The auxiliary beam pointings are beam pointings used for auxiliary detection; at least two are selected and evenly distributed on both sides of the main beam support range to ensure a comprehensive reflection of the impact of different beam pointings on local spatial response differences. During selection, overlap between auxiliary beam pointings and the main serving beam pointing must be avoided, and the angular interval between two adjacent auxiliary beam pointings must be no less than 5 degrees.

[0092] Step 302: During the pointing operation of each auxiliary beam, the corresponding local spatial response difference features are formed based on the signal segments in the received signal sequence that correspond to the downlink reference signal, and the auxiliary beam difference features are obtained.

[0093] Optionally, the communication control device controls the millimeter-wave array antenna to sequentially switch to each auxiliary beam pointing and maintain the working state. The auxiliary beam pointing working period refers to the time period during which the millimeter-wave array antenna adjusts the beam pointing to the auxiliary beam pointing and stably receives the downlink reference signal. The length of this time period is not less than 3 transmission cycles of the downlink reference signal to ensure that the complete downlink reference signal can be obtained.

[0094] During each auxiliary beam pointing operation, the communication control device extracts a signal segment corresponding to the downlink reference signal from the received signal sequence. This signal segment refers to a continuous signal fragment in the received signal sequence specifically corresponding to the downlink reference signal. This signal fragment completely corresponds to the transmission period and signal length of the downlink reference signal, and can fully reflect the characteristics of the array element receiving the downlink reference signal. The extraction method is consistent with the signal segment extraction method in step 203. Based on the extracted signal segments, the communication control device forms local spatial response difference features corresponding to each auxiliary beam pointing, following the same construction method as in steps 20 and 201 to 2054, thus obtaining auxiliary beam difference features. These auxiliary beam difference features refer to the local spatial response difference features constructed based on the first received signal of the abnormal array element and the second received signal of the normal array element during the auxiliary beam pointing operation. Each auxiliary beam pointing corresponds to an independent auxiliary beam difference feature, used for comparative analysis with the local spatial response difference features under the main serving beam.

[0095] Step 303: Compare the local spatial response difference features under the main serving beam with the difference features of each auxiliary beam on the same spatial angle unit to identify the trajectory points that change abruptly with beam switching and obtain the cross-beam trajectory difference.

[0096] Optionally, the communication control device acquires the local spatial response difference features under the main serving beam, which are the local spatial response difference features constructed in step 20 during the main serving beam pointing operation; at the same time, it acquires each auxiliary beam difference feature obtained in step 302 to ensure that the signal segment length, sampling frequency and time interval corresponding to all features remain consistent, thus ensuring the fairness and accuracy of the comparison.

[0097] The communication control device compares the local spatial response difference features under the main serving beam with each auxiliary beam difference feature on the same spatial angle unit using a complex plane trajectory. A spatial angle unit refers to the smallest angle unit divided at fixed angular intervals, with intervals of 1 to 2 degrees, covering the spatial angle range supported by the main beam and the pointing of the auxiliary beams. The complex plane trajectory refers to a continuous trajectory drawn sequentially on the complex plane using each quantized parameter of the local spatial response difference feature as a complex number (real part representing the feature amplitude, imaginary part representing the feature phase). The comparison method is as follows: for each spatial angle unit, the complex plane trajectory points corresponding to the main serving beam feature and the current auxiliary beam feature in that angle unit are extracted, the coordinate differences between the two trajectory points are compared one by one, the straight-line distance between the two trajectory points is calculated, and the phase difference between the two trajectory points is compared simultaneously.

[0098] Based on the comparison results, the communication control device identifies trajectory points that abruptly change with beam switching, obtaining cross-beam trajectory differences. Abruptly changing trajectory points refer to complex plane trajectory points where the main serving beam feature and the auxiliary beam feature are on the same spatial angular unit, with a straight-line distance greater than a preset trajectory change distance threshold and a phase difference greater than a preset phase change threshold. Cross-beam trajectory differences refer to the set of all trajectory points that abruptly change with beam switching. This set includes core information such as the spatial angular position of the abruptly changing trajectory points, trajectory point coordinate differences, and phase differences. The preset trajectory change distance threshold and preset phase change threshold are both preset fixed values, set by technicians based on the recognition accuracy of cross-beam trajectory differences and the requirements of array element error characteristics, used to distinguish between normal trajectory fluctuations and abnormal trajectory changes.

[0099] Step 304: Determine the array element error morphology based on the beam pointing order of abrupt change points in the cross-beam trajectory difference.

[0100] Optionally, the beam pointing order refers to the switching order of the beam pointing corresponding to the mutation point, that is, the switching order of the main serving beam pointing and each auxiliary beam pointing, as well as the specific beam pointing (main serving beam pointing or a certain auxiliary beam pointing) corresponding to each mutation point.

[0101] The communication control device determines the array element error morphology based on the beam pointing sequence of abrupt change points in the cross-beam trajectory difference, as described in steps 3041 to 3044.

[0102] This invention, through the coordinated detection and trajectory comparison of primary and secondary beams, transforms local spatial response differences into cross-beam trajectory differences for analysis, achieving accurate fitting and determination of array element error patterns. This effectively solves the problem that static calibration cannot reflect the dynamic errors of array elements, improves the online error sensing system that does not rely on offline calibration, and helps to complete the closed loop of error suppression and communication stability assurance, thereby enhancing the high robustness and high stability of millimeter-wave communication systems under complex hardware conditions.

[0103] Optionally, the processes of steps 3041 to 3044 include: Step 3041: Based on the beam pointing order of the abrupt change points in the cross-beam trajectory difference, determine whether the abrupt change exhibits discontinuous jumping behavior, locate the specific beam switching boundary where the jump occurs, and obtain the trajectory break location.

[0104] Optionally, cross-beam trajectory difference refers to the set of all trajectory points that change abruptly with beam switching, including core information such as the spatial angular position of the abrupt trajectory points, the coordinate differences of the trajectory points, and the phase differences; beam pointing order refers to the switching order of the beam pointing corresponding to the abrupt point, that is, the switching order of the main serving beam pointing and the various auxiliary beam pointing, as well as the specific beam pointing corresponding to each abrupt point.

[0105] The communication control device sequentially analyzes the beam pointing and abrupt change characteristics corresponding to each abrupt change point according to the beam pointing sequence to determine whether the abrupt change exhibits discontinuous jump behavior. Discontinuous jump behavior refers to abrupt changes in the coordinates, phase, and other characteristics of the trajectory points in the cross-beam trajectory differences. These changes do not exhibit a continuous, gradual change but rather a sudden, significant shift that cannot be explained by normal beam switching patterns. The determination method is as follows: Following the beam pointing switching sequence, the feature differences between abrupt changes corresponding to adjacent beam pointings are calculated one by one, including coordinate distance differences and phase differences. If at least one set of feature differences between abrupt changes corresponding to adjacent beam pointings exceeds a preset jump determination threshold, the abrupt change is determined to exhibit discontinuous jump behavior. If the feature differences between abrupt changes corresponding to all adjacent beam pointings are less than or equal to the preset jump determination threshold, the abrupt change is determined not to exhibit discontinuous jump behavior. The preset jump determination threshold is a fixed value set by technicians based on the normal characteristic fluctuation range of beam switching and the required accuracy of abrupt change identification, used to distinguish between normal feature gradual changes and discontinuous jumps.

[0106] If the sudden change is determined to be a discontinuous jump behavior, the communication control device locates the specific beam switching boundary where the jump occurs, and obtains the trajectory break location. Here, the beam switching boundary refers to the switching node between two adjacent beam directions, that is, the beam direction boundary corresponding to the switching moment when the previous beam direction stops working and the next beam direction starts working; the trajectory break location refers to the beam switching boundary corresponding to the non-continuous jump behavior, as well as the spatial angular position and trajectory characteristics of the sudden change point at the boundary. By matching the sudden change point corresponding to the non-continuous jump with the beam direction switching sequence, the two adjacent beam directions corresponding to the sudden change point are determined, thereby locating the beam switching boundary where the jump occurs, and the relevant information of the boundary and the corresponding sudden change point is recorded as the trajectory break location.

[0107] Step 3042: Based on the analysis of the beam pointing corresponding to the trajectory break location and the physical arrangement of the array elements of the millimeter-wave array antenna, the region of the disturbance source causing the break on the array aperture is obtained, thus obtaining the break projection neighborhood.

[0108] Optionally, the communication control device extracts the beam pointing corresponding to the trajectory break location based on the trajectory break location. The beam pointing corresponding to the trajectory break location refers to the two adjacent beam pointings on both sides of the beam switching boundary where the discontinuous jumping behavior occurs, namely the beam pointing before and after the jump. Both beam pointings are the main serving beam pointing or the auxiliary beam pointing determined in step 301.

[0109] The communication control device simultaneously acquires the physical arrangement parameters of the array elements of the millimeter-wave array antenna. The physical arrangement parameters refer to the core parameters such as the physical position, arrangement method, and physical spacing between adjacent array elements of the millimeter-wave array antenna. These parameters are fixed parameters determined during the antenna design and manufacturing process.

[0110] Based on the beam pointing and array element physical arrangement parameters corresponding to the aforementioned trajectory break location, the communication control device analyzes the region of the disturbance source causing the break on the array aperture to obtain the break projection neighborhood. Here, the disturbance source refers to the root cause of discontinuous jumps and trajectory breaks due to cross-beam trajectory differences, i.e., hardware damage or error corresponding to the abnormal array element; the array aperture refers to the physical space range covered by all array elements in the millimeter-wave array antenna, which is the overall area of ​​the array element physical arrangement. The analysis method in this embodiment is as follows: based on the beam pointing corresponding to the trajectory break location, the signal propagation direction corresponding to that beam pointing is determined. Combined with the array element physical arrangement parameters, the spatial angular characteristics corresponding to the trajectory break location are projected onto the array aperture to determine the projection area. Then, with this projection area as the center, a preset range is expanded to form the break projection neighborhood. Here, the preset range is a preset fixed distance, set by technicians according to the array aperture size and the range of disturbance influence, ensuring that the break projection neighborhood can completely cover the array area where the disturbance source causing the trajectory break is located. The break projection neighborhood refers to the local area on the array aperture related to the trajectory break and where a disturbance source may exist.

[0111] Step 3043: Based on the preset typical hardware fault topology template library, analyze whether the spatial distribution shape of the disturbance in the fracture projection neighborhood matches the geometric pattern described by at least one template to obtain the fault topology matching result.

[0112] Optionally, the preset typical hardware fault topology template library refers to a database pre-established by technicians that stores topology patterns corresponding to various typical array element hardware faults. This template library contains spatial distribution shape templates corresponding to different types of hardware faults (such as array element damage, poor array element contact, abnormal array element phase shift, abnormal array element amplitude attenuation, etc.). Each template clearly describes the geometric pattern and characteristic parameters of the disturbance spatial distribution on the array aperture for that type of fault, and the templates in the library cover all common hardware fault types for millimeter-wave array antennas. The communication control device extracts the spatial distribution shape of the disturbance within the fracture projection neighborhood. The spatial distribution shape of the disturbance refers to the geometric distribution pattern of the signal disturbance caused by the disturbance source (abnormal array element hardware damage) on the array aperture within the fracture projection neighborhood. This pattern is characterized by information such as the degree of signal disturbance and distribution location of each array element within the fracture projection neighborhood. By analyzing the differences in signal response of each array element within the fracture projection neighborhood, the spatial distribution shape of the disturbance is extracted.

[0113] The communication control device compares the extracted spatial distribution shape of the disturbance with the geometric patterns described by each template in the preset typical hardware fault topology template library one by one. It determines whether the spatial distribution shape of the disturbance matches the geometric pattern described by at least one template, and obtains the fault topology matching result. Here, matching means that the geometric features and distribution patterns of the spatial distribution shape of the disturbance match the features and patterns of the geometric pattern described by the template with a degree greater than a preset matching threshold. The fault topology matching result refers to the matching template type and the degree of matching overlap. If at least one template matches the spatial distribution shape of the disturbance, the matching result is that a matching template exists, and the hardware fault type corresponding to the matching template is recorded. If no template matches the spatial distribution shape of the disturbance, the matching result is that no matching template exists, and the disturbance is determined to be an unknown type of hardware fault. The preset matching threshold is a preset fixed percentage, which is set by technicians according to the fault identification accuracy requirements, and is usually not less than 80%.

[0114] Step 3044: Based on the hardware damage type indicated by the fault topology matching result, and combined with the physical location of the abnormal array element in the millimeter-wave array antenna, analyze the structural deviation form of the damage in the amplitude response and phase response to obtain the array element error morphology.

[0115] Optionally, the communication control device extracts the hardware damage type indicated by the fault topology matching result. The hardware damage type refers to the specific array element hardware fault type corresponding to the matching template, such as array element damage, poor array element contact, abnormal array element phase offset, abnormal array element amplitude attenuation, etc. If the fault topology matching result is no matching template, the hardware damage type is determined to be an unknown damage type.

[0116] The communication control device simultaneously acquires the physical location of the abnormal array element in the millimeter-wave array antenna. This physical location is the specific location information determined when identifying the abnormal array element in step 10, namely the specific sequence number and spatial coordinates of the abnormal array element in the linear arrangement of the array. The communication control device can directly call this location information.

[0117] Based on the aforementioned hardware damage types and the physical location of abnormal array elements, the communication control device analyzes the structural deviations exhibited by the damage in amplitude and phase responses to obtain the array element error morphology. Here, amplitude response refers to the ratio of the output signal amplitude to the input signal amplitude when the array element receives a signal, and phase response refers to the difference between the output signal phase and the input signal phase when the array element receives a signal. The structural deviation morphology refers to the fixed and regular deviation pattern of the amplitude and phase responses of abnormal array elements caused by hardware damage compared to the ideal array element response. The analysis method in this embodiment is as follows: based on the typical characteristics of the hardware damage type and the physical location of the abnormal array elements, it is determined that the damage will cause deviations such as attenuation and abnormal gain in the amplitude response, and deviations such as offset and jitter in the phase response. The specific degree and variation pattern of these deviations are quantified, and the amplitude and phase response deviation information of all abnormal array elements is summarized to form a parameter set that can completely reflect the array element error situation, which is the array element error morphology.

[0118] This invention achieves precise determination of array element error morphology through trajectory breakage analysis, projection positioning, template matching, and deviation analysis. It transforms cross-beam trajectory differences into clearly identifiable hardware damage types and response deviation forms, effectively solving the problem that static calibration cannot reflect the dynamic errors of array elements. It also improves the online error sensing system that does not rely on offline calibration, completes the closed loop of error suppression and communication stability assurance, and enhances the high robustness and high stability of millimeter-wave communication systems under complex hardware conditions.

[0119] Furthermore, the wireless communication control device using element error fitting of a millimeter-wave array antenna provided by the present invention will be described below. The wireless communication control device using element error fitting of a millimeter-wave array antenna described below can be referred to in correspondence with the wireless communication control method using element error fitting of a millimeter-wave array antenna described above.

[0120] Optional, refer to Figure 2 , Figure 2 This is a schematic diagram of the wireless communication control device based on element error fitting of a millimeter-wave array antenna provided by the present invention. The wireless communication control device based on element error fitting of a millimeter-wave array antenna includes: The abnormal array element location module 210 is used to obtain the received signal sequence of each array element based on the downlink reference signal received by the millimeter wave array antenna during normal communication, and to identify the abnormal array element position based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thereby obtaining the abnormal array element. The response difference construction module 220 is used to construct local spatial response difference features based on the first received signal of the abnormal array element in the received signal sequence and combined with the second received signal of the normal array element in the received signal sequence. The error morphology analysis module 230 is used to fit the offset of each abnormal array element relative to the response of the ideal array element based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, so as to obtain the array element error morphology. The array switching module 240 is used to enable redundant antenna subarrays to maintain communication connection with the target user if the array element error morphology indicator millimeter-wave array antenna does not meet the preset beam pointing conditions.

[0121] The embodiments of the present invention do not rely on offline calibration. They can complete the online sensing and effective suppression of pair element errors by using only the downlink reference signal in the normal communication process. This solves the problems of beam pointing offset, gain reduction and channel estimation distortion caused by the inability of static calibration to adapt to dynamic errors, and improves the robustness and stability of millimeter wave communication systems under complex hardware conditions.

[0122] Please see Figure 3 , Figure 3 An embodiment diagram of an electronic device provided in accordance with the present invention. For example... Figure 3 As shown, this embodiment of the invention provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor 320. When the processor 320 executes the computer program 311, it performs the following steps: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, the received signal sequence of each array element is obtained, and the abnormal array element position is identified based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thus obtaining the abnormal array element. Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, local spatial response difference features are constructed. Based on the projection behavior of local spatial response difference characteristics in the spatial angle domain, the offset of each abnormal array element relative to the response of the ideal array element is fitted to obtain the array element error morphology. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

[0123] Please see Figure 4 , Figure 4 An embodiment diagram of a computer-readable storage medium provided in accordance with an embodiment of the present invention is shown. Figure 4 As shown, this embodiment provides a computer-readable storage medium 400 on which a computer program 311 is stored. When the computer program 311 is executed by a processor, it performs the following steps: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, the received signal sequence of each array element is obtained, and the abnormal array element position is identified based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thus obtaining the abnormal array element. Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, local spatial response difference features are constructed. Based on the projection behavior of local spatial response difference characteristics in the spatial angle domain, the offset of each abnormal array element relative to the response of the ideal array element is fitted to obtain the array element error morphology. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

[0124] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the wireless communication control method using the element error fitting of a millimeter-wave array antenna provided by the above methods, the method comprising: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, the received signal sequence of each array element is obtained, and the abnormal array element position is identified based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thus obtaining the abnormal array element. Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, local spatial response difference features are constructed. Based on the projection behavior of local spatial response difference characteristics in the spatial angle domain, the offset of each abnormal array element relative to the response of the ideal array element is fitted to obtain the array element error morphology. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

[0125] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0126] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wireless communication control method utilizing element error fitting of a millimeter-wave array antenna, characterized in that, include: Based on the downlink reference signal received by the millimeter-wave array antenna during normal communication, the received signal sequence of each array element is obtained, and the abnormal array element position is identified based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thus obtaining the abnormal array element. Based on the first received signal of the abnormal array element in the received signal sequence, and combined with the second received signal of the normal array element in the received signal sequence, local spatial response difference features are constructed. Based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, the offset of each abnormal array element relative to the response of the ideal array element is fitted to obtain the array element error morphology. If the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions, then the redundant antenna subarray is activated to maintain the communication connection with the target user.

2. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 1, characterized in that, The steps for determining the abnormal array elements include: The instantaneous phase difference between adjacent array elements is calculated based on the instantaneous phase values ​​of two adjacent array elements at the same time in the received signal sequence, and a phase difference sequence is obtained. Based on the phase difference sequence and the ideal phase difference values ​​corresponding to the physical spacing between adjacent array elements in the millimeter-wave array antenna and the system operating wavelength, a point-by-point difference calculation is performed to obtain the phase deviation sequence. Event detection is performed based on the phase deviation sequence and the preset phase deviation allowable interval to obtain the target element position corresponding to the phase deviation out-of-bounds event; Based on the linear arrangement order of each array element in the millimeter-wave array antenna, the number of times each target array element position occurs in the phase deviation out-of-bounds event is detected, the out-of-bounds occurrence count of each array element is obtained, and the abnormal array element position is identified based on the out-of-bounds occurrence count of each target array element position, thus obtaining the abnormal array element.

3. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 2, characterized in that, The method of identifying abnormal array element positions based on the number of out-of-bounds occurrences at each target array element position, and obtaining abnormal array elements, includes: The array element corresponding to the target array element position where the number of out-of-bounds occurrences exceeds the deviation out-of-bounds number threshold is taken as the phase out-of-bounds array element. Based on the phase out-of-bounds array element and the amplitude response value sequence of each array element in the received signal sequence at the downlink reference signal subcarrier, the difference in amplitude response value between the phase out-of-bounds array element and its left and right adjacent array elements at the same subcarrier position is calculated to obtain the amplitude response deviation of each phase out-of-bounds array element. The amplitude response deviation upper limit is determined based on the amplitude response deviation of each phase out-of-bounds array element and the preset local deviation upper limit of the amplitude response, and the amplitude response deviation array element is obtained. Based on the amplitude response deviation array element and the time-domain received signal power value of each array element in the received signal sequence, the peak-to-peak value of the received signal power of each amplitude response deviation array element is calculated. The array element whose amplitude response deviation exceeds the preset power fluctuation threshold when the received signal power peak-to-peak value is determined as the abnormal array element.

4. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 1, characterized in that, The steps for constructing the local spatial response difference features include: Based on the first received signal and the second received signal, three consecutive array elements, with the abnormal array element as the center and one normal array element on each side, are combined to obtain a three-element array element group. Based on the linear and uniform physical arrangement of the three-element array and the millimeter-wave array antenna, the geometric symmetry relationship between the two normal array elements on the left and right relative to the abnormal array elements is analyzed, and the geometric symmetry relationship is obtained. For a signal segment in the received signal sequence that corresponds to the downlink reference signal, the complex plane symmetry state is obtained by comparing the conjugate symmetry of the trajectory of the second received signal of the left and right normal array elements in the complex plane within the signal segment based on the geometric symmetry relationship. Based on the complex plane symmetry state and the first received signal of the abnormal array element in the same signal segment, the geometric deviation relationship between the trajectory of the first received signal on the complex plane and the trajectory of the conjugate symmetry center is identified to obtain the complex plane deviation relationship. Based on the complex plane deviation relationship and the continuous symbol positions of the signal segment in the time dimension, the local spatial response difference features are constructed.

5. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 4, characterized in that, The construction of the local spatial response difference features based on the complex plane deviation relationship and the continuous symbol positions of the signal segment in the time dimension includes: Based on the complex plane deviation relationship and the continuous symbol positions of the signal segment in the time dimension, the continuity of the trajectory shape of the complex plane deviation relationship on the continuous symbols is determined, and the deviation trajectory shape is obtained. Based on the deviation trajectory pattern and the beam pointing configuration of the millimeter-wave array antenna, the consistency of the repeated occurrence of the deviation trajectory pattern under different beam pointing configurations is determined, and the deviation reproduction characteristics are obtained. Based on the deviation reproduction characteristics and the geometric symmetry relationship, the perturbation direction of the asymmetric response caused by the abnormal array element in the local spatial region is analyzed, and the local dominant perturbation direction is obtained. The local spatial response difference characteristics are obtained by characterizing and mapping based on the local dominant perturbation direction and the deviation trajectory morphology.

6. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 1, characterized in that, The steps for determining the error morphology of the array elements include: Based on the local spatial response difference characteristics, the spatial angle range covered by the main serving beam direction of the millimeter-wave array antenna is determined, and at least two auxiliary beam directions are selected in the angle region adjacent to the main beam support range based on the preset beam direction of the millimeter-wave array antenna. During the operation of each auxiliary beam pointing, the corresponding local spatial response difference features are formed based on the signal segments in the received signal sequence that correspond to the downlink reference signal, and the auxiliary beam difference features are obtained. The local spatial response difference features under the main serving beam and the difference features of each auxiliary beam are compared with the complex plane trajectory on the same spatial angle unit to identify the trajectory points that change abruptly with beam switching and obtain the cross-beam trajectory difference. The array element error morphology is determined based on the beam pointing order in which abrupt changes occur in the cross-beam trajectory differences.

7. The wireless communication control method using element error fitting of a millimeter-wave array antenna according to claim 6, characterized in that, The determination of the array element error morphology based on the beam pointing order of abrupt changes in the cross-beam trajectory difference includes: Based on the beam pointing order of the abrupt change points in the cross-beam trajectory difference, determine whether the abrupt change exhibits discontinuous jumping behavior, locate the specific beam switching boundary where the jump occurs, and obtain the trajectory break location. Based on the analysis of the beam pointing corresponding to the trajectory break location and the physical arrangement of the array elements of the millimeter-wave array antenna, the region of the disturbance source that caused the break on the array aperture is obtained, and the break projection neighborhood is obtained. Based on a pre-defined library of typical hardware fault topology templates, the spatial distribution shape of disturbances in the fracture projection neighborhood is analyzed to determine whether it matches the geometric pattern described by at least one template, thus obtaining the fault topology matching result. Based on the hardware damage type indicated by the fault topology matching results, and combined with the physical location of the abnormal array element in the millimeter-wave array antenna, the structural deviation form of the damage in the amplitude response and phase response is analyzed to obtain the array element error morphology.

8. A wireless communication control device utilizing element error fitting of a millimeter-wave array antenna, characterized in that, Applied to the wireless communication control method using element error fitting of a millimeter-wave array antenna as described in any one of claims 1 to 7; The wireless communication control device includes: The abnormal array element location module is used to obtain the received signal sequence of each array element based on the downlink reference signal received by the millimeter wave array antenna during normal communication, and to identify the abnormal array element position based on the mutual synchronization relationship of the signals of each array element in the received signal sequence, thereby obtaining the abnormal array element. The response difference construction module is used to construct local spatial response difference features based on the first received signal of the abnormal array element in the received signal sequence and the second received signal of the normal array element in the received signal sequence. The error morphology analysis module is used to fit the offset of each abnormal array element relative to the response of the ideal array element based on the projection behavior of the local spatial response difference characteristics in the spatial angle domain, so as to obtain the array element error morphology. An array switching module is used to enable redundant antenna subarrays to maintain communication connection with the target user if the array element error pattern indicates that the millimeter-wave array antenna does not meet the preset beam pointing conditions.

9. An electronic device, comprising: Memory, used to store computer software programs; A processor for reading and executing the computer software program, characterized in that, when the processor executes the computer software program, it implements the wireless communication control method for fitting the array element error of a millimeter-wave array antenna as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium, wherein a computer software program is stored therein, characterized in that, When the computer software program is executed by the processor, it implements the wireless communication control method for fitting the array element error of a millimeter-wave array antenna as described in any one of claims 1 to 7.

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