WO2021004485A1 - 一种户外网络设备的调整方法和户外网络设备 - Google Patents

一种户外网络设备的调整方法和户外网络设备 Download PDF

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Publication number
WO2021004485A1
WO2021004485A1 PCT/CN2020/100884 CN2020100884W WO2021004485A1 WO 2021004485 A1 WO2021004485 A1 WO 2021004485A1 CN 2020100884 W CN2020100884 W CN 2020100884W WO 2021004485 A1 WO2021004485 A1 WO 2021004485A1
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base station
target base
outdoor network
control unit
network device
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PCT/CN2020/100884
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English (en)
French (fr)
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王永超
齐义明
王彬
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华为技术有限公司
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Publication of WO2021004485A1 publication Critical patent/WO2021004485A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

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  • This application relates to the field of communication technology, and in particular to an adjustment method of outdoor network equipment and outdoor network equipment used in millimeter wave communication.
  • Millimeter wave refers to electromagnetic waves with a frequency of 30GHz-300GHz and a wavelength of 1mm-10mm. Millimeter wave communication has the advantages of high frequency band, bandwidth of transmission frequency, and stable performance. Millimeter wave communication is an effective means to solve the dense and mutual interference of urban communications. The application in the field of communications has become increasingly widespread.
  • the millimeter wave communication system mostly adopts a distributed architecture, including base stations and outdoor network equipment that communicate with the base station using optical fibers or wirelessly.
  • the outdoor network equipment may be an Outdoor Device Unit (ODU) that supports millimeter waves.
  • ODU Outdoor Device Unit
  • ODU has the characteristics of high operating frequency, short wavelength, and weak signal penetration. To ensure the coverage and gain of the millimeter wave, it is best to maintain line-of-sight transmission between the ODU and the base station.
  • the ODU When adjusting the ODU, the ODU is usually fixed on the outdoor mounting bracket manually. If the communication signal is not ideal, the ODU is manually rotated, and then the ODU is rotated and fixed on the mounting bracket. Due to the narrow sidelobe of the millimeter wave Low, which makes the installation direction of the ODU relative to the base station have a greater impact on the actual communication effect.
  • the current ODU adjustment method is time-consuming and difficult to find the best azimuth angle. Therefore, the effect of ODU adjustment using this method is not ideal.
  • the embodiments of the present application provide a method and device for adjusting outdoor network equipment, which can conveniently and accurately adjust outdoor network equipment.
  • an embodiment of the present application provides a method for adjusting outdoor network equipment.
  • the outdoor network equipment communicates with a target base station.
  • the outdoor network equipment includes: a control unit, a storage unit, and a millimeter wave.
  • Wave antenna module unit and stepping motor the method includes the following steps:
  • the control unit obtains the location information of the target base station
  • the control unit determines the initial installation position of the outdoor network equipment according to the location information of the target base station, and the outdoor network equipment is installed on the mounting bracket according to the initial installation position; at the initial installation position, the control The unit controls the direction of the main lobe of the millimeter wave antenna in the millimeter wave antenna module unit toward the position of the target base station;
  • the control unit controls the stepping motor to rotate within a specified range corresponding to the initial installation position.
  • the outdoor network device is driven to rotate relative to the mounting bracket, and the stepping motor
  • the preset value of the signal quality parameter and the position of the stepping motor after each rotation are stored in the storage unit;
  • the control unit traverses the values of the preset signal quality parameters stored in the storage unit, and determines a target position within the specified range, where the difference between the outdoor network device and the target base station is The strongest signal between;
  • the control unit triggers the stepping motor to rotate to the target position.
  • the user does not need to manually adjust the position of the outdoor network device, and by triggering the stepping motor to rotate to the target position, the signal between the outdoor network device and the target base station can be realized at the target position.
  • the technical solution provided by the embodiment of the present application is more convenient and has higher adjustment accuracy.
  • the method before the control unit obtains the location information of the target base station, the method further includes: the control unit determines a target base station, and the target base station is a base station around the outdoor network device The base station with the strongest signal when communicating with the outdoor network equipment.
  • obtaining the location information of the target base station by the control unit includes:
  • the control unit obtains the location information of the target base station input by the user; or,
  • the control unit obtains the position information of the target base station from the target base station after establishing a communication connection with the target base station.
  • control unit controlling the stepping motor to rotate within a specified range corresponding to the initial installation position includes:
  • the control unit controls the stepping motor to rotate within a specified range centered on the initial installation position.
  • the preset signal command parameters include any one of the following parameters or parameters obtained by calculating any multiple of the following parameters according to a preset formula: reference signal received power, signal Noise ratio.
  • an embodiment of the present application provides an outdoor network device.
  • the outdoor network device communicates with a target base station.
  • the outdoor network device includes a control unit, a storage unit, and a millimeter wave antenna module.
  • the control unit is configured to obtain location information of the target base station
  • the control unit is further configured to determine the initial installation position of the outdoor network equipment according to the location information of the target base station, and the outdoor network equipment is installed on the mounting bracket according to the initial installation position; at the initial installation position , The control unit is further configured to control the main lobe direction of the millimeter wave antenna in the millimeter wave antenna module unit toward the position of the target base station;
  • the control unit is further configured to control the stepping motor to rotate within a specified range corresponding to the initial installation position.
  • the outdoor network device is driven to rotate relative to the mounting bracket, and the The value of the signal quality parameter preset after each rotation of the stepper motor and the position of the stepper motor are stored in the storage unit; traverse the value of the preset signal quality parameter stored in the storage unit, Determining a target location within the specified range, where the signal between the outdoor network device and the target base station is the strongest;
  • the control unit is also used to trigger the stepping motor to rotate to the target position.
  • the user does not need to manually adjust the position of the outdoor network device, and by triggering the stepping motor to rotate to the target position, the signal between the outdoor network device and the target base station can be realized at the target position.
  • the technical solution provided by the embodiment of the present application is more convenient and has higher adjustment accuracy.
  • control unit in terms of acquiring the location information of the target base station, is specifically configured to acquire the location information of the target base station input by the user; or, after establishing a communication connection with the target base station, from Location information of the target base station acquired by the target base station.
  • control unit is specifically configured to control the stepping motor to be centered at the initial installation position in terms of controlling the stepping motor to rotate within a specified range corresponding to the initial installation position. Rotate within the specified range.
  • the preset signal command parameters include any one of the following parameters or parameters obtained by calculating any multiple of the following parameters according to a preset formula: reference signal received power, signal Noise ratio.
  • FIG. 1 is a schematic flowchart of a method for adjusting an outdoor network device according to an embodiment of the application.
  • Fig. 2 is a schematic structural diagram of an outdoor network device provided by another embodiment of the application.
  • the embodiment of the application provides an adjustment method for outdoor network equipment.
  • outdoor network equipment such as ODU
  • ODU is fixed on a mounting bracket to communicate with a target base station.
  • the outdoor network equipment includes: a control unit, a storage unit, and The wave antenna module unit and the stepping motor, as shown in FIG. 1, the adjustment method of outdoor network equipment may include the following steps.
  • the control unit obtains location information of a target base station.
  • the target base station before acquiring the location information of the target base station, it may further include determining the target base station, which is the base station with the strongest signal when communicating with the outdoor network device among the base stations around the outdoor network device.
  • the control unit can obtain the signal strength information of the outdoor network equipment and the surrounding base stations through the millimeter wave antenna module unit. For example, if the control unit obtains the signal strength of it and the surrounding three base stations A1, A2, and A3, respectively , A1, a2, and a3, where a2>a1>a3, then A2 with the highest signal strength is determined as the target base station.
  • obtaining location information of the target base station may include: obtaining location information of the target base station input by a user.
  • the location information of the target base station may also be obtained from the target base station after establishing a communication connection with the target base station.
  • the location information of the target base station may be the longitude and latitude information of the target base station.
  • the control unit determines the initial installation position of the outdoor network equipment according to the location information of the target base station, and the outdoor network equipment is installed on the mounting bracket according to the initial installation position; at the initial installation position, the control unit controls the millimeter wave antenna module unit The main lobe of the millimeter wave antenna is toward the location of the target base station.
  • This step makes the outdoor network equipment roughly face the target base station during the initial installation, which can reduce the range of subsequent stepper motor rotation.
  • the stepper motor only needs to rotate within a smaller range to determine the target position.
  • the control unit controls the stepper motor to rotate within the specified range corresponding to the initial installation position.
  • the stepper motor rotates, it drives the outdoor network equipment to rotate relative to the mounting bracket, and sets the preset signal quality parameter value after each rotation of the stepper motor. And the position of the stepper motor is saved in the storage unit.
  • the stepper motor can be controlled to rotate within a specified range centered on the initial installation position.
  • the specified range can be from the initial position as the center and the horizontal direction rotating 45 degrees clockwise to the initial position as the center horizontal direction rotating 45 degrees counterclockwise, and the initial position as the center, the vertical direction rotating 45 degrees clockwise to The initial position is the center and the vertical direction rotates 45 degrees counterclockwise and the corresponding range is the specified range.
  • each rotation is 3 degrees. It is understandable that in order to improve the accuracy, it can also be rotated by a smaller degree each time, such as 1 degree each time.
  • the angle of rotation can be gradually reduced. For example, if the initial rotation degree of the stepping motor is 3 degrees, when the signal strength of the detected position relative to the position before the movement has increased by more than 5%, the rotation degree is reduced to 50% of the previous rotation angle. For example, it is reduced to 1.5 degrees per rotation. It should be noted that the strength of the signal can be expressed according to the value of the preset signal quality parameter.
  • the preset signal command parameters include any one of the following parameters or parameters obtained by calculating any of the following parameters according to a preset formula: reference signal received power, signal-to-noise ratio .
  • the preset signal command parameter can be the reference signal received power, or the preset signal command parameter can also be the signal to noise ratio, or the preset signal command parameter can be determined by the reference signal received power and the signal to noise ratio at the same time If the reference signal received power is X1 and the signal-to-noise ratio is X2, the preset formula can be X1-0.2*X2, that is, the signal strength between outdoor network equipment and base station can be measured according to the value determined by the formula X1-0.2*X2 .
  • the horizontally rotated position corresponds to 10 points, which are P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, and each position is detected
  • the values of the preset signal command parameters are respectively p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, and p1 ⁇ p10 ⁇ p2 ⁇ p3 ⁇ p9 ⁇ p8 ⁇ p4 ⁇ p5 ⁇ p7 ⁇ p6.
  • the values of the preset signal command parameters detected at each position are respectively It is q1, q2, q3, q4, q5, q6, q7, q8, q9, q10. q1 ⁇ q10 ⁇ q2 ⁇ q3 ⁇ q9 ⁇ q8 ⁇ q4 ⁇ p5 ⁇ p6 ⁇ p7.
  • the control unit traverses the preset signal quality parameter values stored in the storage unit, and determines a target position within the specified range, where the signal between the outdoor network device and the target base station is the strongest.
  • (P6, Q7) is the point with the strongest signal in the horizontal and vertical directions, so the target position can be determined as (P6, Q7).
  • the control unit triggers the stepping motor to rotate to the target position.
  • step S104 it can be known that the stepping motor is triggered to rotate to (P6, Q7), and the adjustment of the outdoor network equipment is realized. And the signal between the outdoor network equipment and the target base station is the strongest at the adjusted position.
  • the user does not need to manually adjust the position of the outdoor network device, and by triggering the stepping motor to rotate to the target position, the signal between the outdoor network device and the target base station can be realized at the target position.
  • the technical solution provided by the embodiment of the present application is more convenient and has higher adjustment accuracy.
  • FIG. 2 is a schematic structural diagram of an outdoor network device provided by an embodiment of the application.
  • the outdoor network device 200 communicates with a target base station, and the outdoor network device 200 includes: a control unit 210 , Storage unit 220, millimeter wave antenna module unit 230 and stepping motor 240.
  • the control unit 210 is configured to obtain location information of the target base station. In some possible implementation manners, before acquiring the location information of the target base station, the control unit 210 is further configured to determine the target base station, where the target base station is the base station around the outdoor network equipment when communicating with the outdoor network equipment. Strong base station.
  • the control unit 210 can obtain the signal strength information between the outdoor network device 200 and surrounding base stations through the millimeter wave antenna module unit 230. For example, if the control unit 210 obtains the signal strength between it and three surrounding base stations A1, A2, and A3 They are a1, a2, and a3, where a2>a1>a3, and A2 with the highest signal strength is determined as the target base station.
  • obtaining location information of the target base station may include: obtaining location information of the target base station input by a user.
  • the location information of the target base station may also be obtained from the target base station after establishing a communication connection with the target base station.
  • the location information of the target base station may be the longitude and latitude information of the target base station.
  • the control unit 210 is also used to determine the initial installation position of the outdoor network equipment according to the location information of the target base station, and the outdoor network equipment is installed on the mounting bracket according to the initial installation position; at the initial installation position, the control unit controls the millimeter wave antenna module
  • the main lobe direction of the millimeter wave antenna in the unit faces the position of the target base station. In this way, when the outdoor network equipment is initially installed, it is roughly oriented toward the target base station, which can reduce the range of subsequent stepper motor rotation.
  • the stepper motor only needs to rotate within a smaller range to determine the target position.
  • the control unit 210 is also used to control the stepping motor 240 to rotate within a specified range corresponding to the initial installation position.
  • the stepping motor 240 rotates, it drives the outdoor network equipment 200 to rotate relative to the mounting bracket.
  • the set value of the signal quality parameter and the position of the stepping motor 240 are stored in the storage unit 220.
  • control unit 210 may control the stepping motor 240 to rotate within a specified range centered on the initial installation position.
  • the specified range can be from the initial position as the center and the horizontal direction rotating 45 degrees clockwise to the initial position as the center horizontal direction rotating 45 degrees counterclockwise, and the initial position as the center, the vertical direction rotating 45 degrees clockwise to The initial position is the center and the vertical direction rotates 45 degrees counterclockwise and the corresponding range is the specified range.
  • each rotation is 3 degrees. It is understandable that in order to improve the accuracy, it can also be rotated by a smaller degree each time, such as 1 degree each time.
  • the angle of rotation can be gradually reduced. For example, if the initial rotation degree of the stepping motor is 3 degrees, when the signal strength of the detected position relative to the position before the movement has increased by more than 5%, the rotation degree is reduced to 50% of the previous rotation angle. For example, it is reduced to 1.5 degrees per rotation. It should be noted that the strength of the signal can be expressed according to the value of the preset signal quality parameter.
  • the preset signal command parameters include any one of the following parameters or parameters obtained by calculating any of the following parameters according to a preset formula: reference signal received power, signal-to-noise ratio .
  • the preset signal command parameter can be the reference signal received power, or the preset signal command parameter can also be the signal to noise ratio, or the preset signal command parameter can be determined by the reference signal received power and the signal to noise ratio at the same time If the reference signal received power is X1 and the signal-to-noise ratio is X2, the preset formula can be X1-0.2*X2, that is, the signal strength between outdoor network equipment and base station can be measured according to the value determined by the formula X1-0.2*X2 .
  • the horizontally rotated position corresponds to 10 points, which are P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, and each position is detected
  • the values of the preset signal command parameters are respectively p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, and p1 ⁇ p10 ⁇ p2 ⁇ p3 ⁇ p9 ⁇ p8 ⁇ p4 ⁇ p5 ⁇ p7 ⁇ p6.
  • the values of the preset signal command parameters detected at each position are respectively It is q1, q2, q3, q4, q5, q6, q7, q8, q9, q10. q1 ⁇ q10 ⁇ q2 ⁇ q3 ⁇ q9 ⁇ q8 ⁇ q4 ⁇ p5 ⁇ p6 ⁇ p7.
  • the control unit 210 is further configured to traverse the preset signal quality parameter values stored in the storage unit 220, and determine a target location within the specified range, where the outdoor network device and the target base station are at the target location. The signal is the strongest.
  • (P6, Q7) is the point with the strongest signal in the horizontal and vertical directions, so the target position can be determined as (P6, Q7).
  • the control unit 210 is also used to trigger the stepping motor 240 to rotate to the target position.
  • control unit 210 is also used to trigger the stepping motor 240 to rotate to (P6, Q7), so that the adjustment of the outdoor network device 200 is realized.
  • the signal between the outdoor network device 200 and the target base station is the strongest.
  • the user does not need to manually adjust the position of the outdoor network device, and by triggering the stepping motor to rotate to the target position, the signal between the outdoor network device and the target base station can be realized at the target position.
  • the technical solution provided by the embodiment of the present application is more convenient and has higher adjustment accuracy.
  • the embodiments of the present application also provide a computer-readable storage medium, and the computer-readable storage medium stores instructions.
  • the outdoor network device When the instructions run on an outdoor network device, the outdoor network device is caused to execute the method described in any of the previous embodiments. Part or all of the steps in the adjustment method of outdoor network equipment.
  • the embodiments of the present application also provide a computer program product, which when the computer program product runs on a computer, enables part or all of the steps of the method for adjusting the outdoor network device.
  • each module in the above device is only a division of logical functions, and may be fully or partially integrated into one physical entity during actual implementation, or may be physically separated.
  • each of the above modules can be separately set up processing elements, or they can be integrated in a certain chip of the terminal for implementation.
  • they can also be stored in the storage element of the controller in the form of program codes and processed by a certain processor.
  • the component calls and executes the functions of the above modules.
  • various modules can be integrated together or implemented independently.
  • the control unit described here may be an integrated circuit chip with communication and signal processing capabilities.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the controller or instructions in the form of software.
  • the control unit may be a general-purpose processor, such as a central processing unit (CPU), or may be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (application-specific integrated circuits). integrated circuit, ASIC), or, one or more microprocessors (digital signal processor, DSP), or, one or more field-programmable gate arrays (FPGA), etc.
  • CPU central processing unit
  • ASIC application-specific integrated circuits
  • DSP digital signal processor
  • FPGA field-programmable gate arrays

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Abstract

本申请实施例公开了一种户外网络设备的调整方法和户外网络设备，所述方法包括：获取目标基站的位置信息；根据目标基站的位置信息确定初始安装位置，根据初始安装位置户外网络设备被安装在户外的安装支架上；在初始安装位置处，毫米波天线模组单元中的毫米波天线的主瓣方向朝向目标基站的位置；控制步进电机在初始安装位置对应的指定范围内转动，保存步进电机每次转动后预设的信号质量参数的值和步进电机的位置；遍历已保存的预设的信号质量参数的值，确定目标位置；触发步进电机转动到目标位置。本申请不需要用户手动调节户外网络设备的位置，通过触发步进电机转到目标位置，相对于人工盲调来说，本申请提供的调整方法更加便捷，调整精度也更高。

Description

一种户外网络设备的调整方法和户外网络设备
本申请要求于2019年07月11日提交中国专利局、申请号为2019106250380、申请名称为“一种户外网络设备的调整方法和户外网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及在毫米波通信时使用的户外网络设备的调整方法和户外网络设备。
背景技术
毫米波是指频率为30GHz-300GHz波长为1mm-10mm的电磁波，毫米波通信具有频段高、传输频带宽、性能稳定等优点，毫米波通信是解决城区通信密集且相互干扰的有效手段，在无线通信领域应用日益广泛。
毫米波通信系统多采用分布式架构，包括基站和与基站利用光纤或者无线方式进行通信的户外网络设备，户外网络设备可以是支持毫米波的室外设备单元(Outdoor Device Unit，ODU)。ODU具有工作频率高、波长短、信号穿透力弱等特点。要保证毫米波的覆盖和增益，ODU与基站之间最好保持视距径传输。
在进行ODU调整时，通常由人工将ODU固定在室外的安装支架上，若通信信号不理想，则人为转动ODU，然后将ODU转动后固定在安装支架上，由于毫米波的波瓣窄副瓣低，这使得ODU相对于基站的安装方向对于实际通信效果影响较大，目前这种ODU的调整方式既费时又很难找到最佳的方位角，因此采用该方法进行ODU调整时效果不理想。
所以，如何方便准确地对ODU进行调整是目前亟待解决的问题。
发明内容
本申请实施例提供了一种户外网络设备的调整方法和装置，能够方便准确地对户外网络设备进行调整。
第一方面，本申请实施例提供了一种户外网络设备的调整方法，在毫米波通信时，所述户外网络设备与目标基站进行通信，所述户外网络设备包括：控制单元、存储单元、毫米波天线模组单元和步进电机，所述方法包括如下步骤：
所述控制单元获取所述目标基站的位置信息；
所述控制单元根据所述目标基站的位置信息确定所述户外网络设备的初始安装位置，根据初始安装位置所述户外网络设备被安装在安装支架上；在所述初始安装位置处，所述控制单元控制所述毫米波天线模组单元中的毫米波天线的主瓣方向朝向所述目标基站的位置；
所述控制单元控制所述步进电机在所述初始安装位置对应的指定范围内转动，所述步进电机转动时带动所述户外网络设备相对于所述安装支架转动，将所述步进电机每次转动后预设的信号质量参数的值和所述步进电机的位置保存在所述存储单元；
所述控制单元遍历所述存储单元中保存的所述预设的信号质量参数的值，确定所述指定范围内的目标位置，在所述目标位置处所述户外网络设备与所述目标基站之间的信号最强；
所述控制单元触发所述步进电机转动到所述目标位置。
采用本申请实施例提供的技术方案，不需要用户手动调节户外网络设备的位置，通过触发步进电机转动到目标位置，能够实现在目标位置处户外网络设备与目标基站之间的信号最强，相对于人工盲调来说，本申请实施例提供的技术方案更加便捷，调整精度也更高。
在一些可能的实施例中，在所述控制单元获取所述目标基站的位置信息之前，所述方法还包括：所述控制单元确定目标基站，所述目标基站是所述户外网络设备周围的基站中与所述户外网络设备进行通信时信号最强的基站。
在一些可能的实施例中，所述控制单元获取所述目标基站的位置信息，包括：
所述控制单元获取用户输入的所述目标基站的位置信息；或者，
所述控制单元在与所述目标基站建立通信连接后，从所述目标基站获取的所述目标基站的位置信息。
在一些可能的实施例中，所述控制单元控制所述步进电机在所述初始安装位置对应的指定范围内转动，包括：
所述控制单元控制所述步进电机在所述初始安装位置为中心的指定范围内转动。
在一些可能的实施例中，所述预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。
第二方面，本申请实施例提供了一种户外网络设备，在毫米波通信时，所述户外网络设备与目标基站进行通信，所述户外网络设备包括：控制单元、存储单元、毫米波天线模组单元和步进电机；
所述控制单元，用于获取所述目标基站的位置信息；
所述控制单元还用于，根据所述目标基站的位置信息确定所述户外网络设备的初始安装位置，根据初始安装位置所述户外网络设备被安装在安装支架上；在所述初始安装位置处，所述控制单元还用于控制所述毫米波天线模组单元中的毫米波天线的主瓣方向朝向所述目标基站的位置；
所述控制单元还用于，控制所述步进电机在所述初始安装位置对应的指定范围内转动，所述步进电机转动时带动所述户外网络设备相对于所述安装支架转动，将所述步进电机每次转动后预设的信号质量参数的值和所述步进电机的位置保存在所述存储单元；遍历所述存储单元中保存的所述预设的信号质量参数的值，确定所述指定范围内的目标位置，在所述目标位置处所述户外网络设备与所述目标基站之间的信号最强；
所述控制单元还用于，触发所述步进电机转动到所述目标位置。
采用本申请实施例提供的技术方案，不需要用户手动调节户外网络设备的位置，通过触发步进电机转动到目标位置，能够实现在目标位置处户外网络设备与目标基站之间的信号最强，相对于人工盲调来说，本申请实施例提供的技术方案更加便捷，调整精度也更高。
在一些可能的实施例中，所述控制单元在获取目标基站的位置信息方面，具体用于获取用户输入的所述目标基站的位置信息；或者，在与所述目标基站建立通信连接后，从所述目标基站获取的所述目标基站的位置信息。
在一些可能的实施例中，所述控制单元在控制所述步进电机在所述初始安装位置对应的指定范围内转动方面，具体用于控制所述步进电机在所述初始安装位置为中心的指定范围内转动。
在一些可能的实施例中，所述预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。
附图说明
图1为本申请的一个实施例提供的一种户外网络设备的调整方法的流程示意图。
图2为本申请的另一个实施例提供的一种户外网络设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例提供的一种户外网络设备的调整方法，在毫米波通信时，户外网络设备，比如ODU固定在安装支架上与目标基站进行通信，户外网络设备包括：控制单元、存储单元、毫米波天线模组单元和步进电机，如图1所示，户外网络设备的调整方法可以包括如下步骤。
S101、控制单元获取目标基站的位置信息。
在一些可能的实施方式中，在获取目标基站的位置信息之前，还可以包括确定目标基站，目标基站是户外网络设备周围的基站中与所述户外网络设备进行通信时信号最强的基站。
其中，控制单元通过毫米波天线模组单元可以获取户外网络设备与周围基站的信号强度信息，举例来说，若控制单元获取到其与周围3个基站A1、A2、和A3的信号强度分别为，a1、a2、和a3，其中a2＞a1＞a3，则将信号强度最大的A2确定为目标基站。
在一些可能的实施方式中，获取目标基站的位置信息可以包括：获取用户输入的目标基站的位置信息。在另外一些可能的实施方式中，目标基站的位置信息也可以在与目标基站建立通信连接后，从目标基站获取目标基站的位置信息，目标基站的位置信息可以是目 标基站的经纬度信息等。
S102、控制单元根据目标基站的位置信息确定户外网络设备的初始安装位置，根据初始安装位置户外网络设备被安装在安装支架上；在初始安装位置处，控制单元控制毫米波天线模组单元中的毫米波天线的主瓣方向朝向目标基站的位置。
该步骤使得户外网络设备在初始安装时，大致朝向目标基站，这样可以减少后续步进电机转动的范围，步进电机只需要在较小的范围内转动就可以确定目标位置。
S103、控制单元控制步进电机在初始安装位置对应的指定范围内转动，步进电机转动时带动户外网络设备相对于安装支架转动，将步进电机每次转动后预设的信号质量参数的值和步进电机的位置保存在存储单元。
在一些可能的实施方式中，可以控制步进电机在初始安装位置为中心的指定范围内转动。
比如，指定的范围可以是从以初始位置为中心水平方向顺时针转动45度至以初始位置为中心水平方向逆时针转动45度，以及以初始位置为中心，垂直方向顺时针转动45度至以初始位置为中心垂直方向逆时针转动45度对应的范围为指定的范围。
具体移动时，可以以固定的角度进行移动，比如每次转动3度。可以理解的，为了提高精度也可以每次转动更小的度数，比如每次转动1度。
可以理解的，越接近目标位置信号强度越强，为了提高精度，在检测到信号越来越强时，可以逐渐减小转动的角度。举例来说若步进电机初始转动度数为3度，在检测到移动后的位置相对于移动前的位置的信号强度增强超过5％时，将转动度数降为前一次转动角度的50％。比如降为每次转动为1.5度。需要说明的是，可以根据预设的信号质量参数的值来表示信号的强弱。
在一些可能的实施方式中，预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。举例来说，预设的信号指令参数可以是参考信号接收功率，或者预设的信号指令参数也可以是信噪比，或者预设的信号指令参数可以同时由参考信号接收功率和信噪比确定，若参考信号接收功率为X1，信噪比为X2，预设公式可以为X1-0.2*X2，即可以根据公式X1-0.2*X2确定的值衡量户外网络设备与基站之间的信号强弱。
举例来说，若以初始安装位置为中心，水平方向转动到的位置对应10个点，分别为P1、P2、P3、P4、P5、P6、P7、P8、P9、P10，每个位置处检测到的预设信号指令参数的值分别为p1、p2、p3、p4、p5、p6、p7、p8、p9、p10，且p1＜p10＜p2＜p3＜p9＜p8＜p4＜p5＜p7＜p6。若垂直方向转动到的位置也对应10个点，分别为Q1、Q2、Q3、Q4、Q5、Q6、Q7、Q8、Q9、Q10，每个位置处检测到的预设信号指令参数的值分别为q1、q2、q3、q4、q5、q6、q7、q8、q9、q10。q1＜q10＜q2＜q3＜q9＜q8＜q4＜p5＜p6＜p7。
S104、控制单元遍历存储单元中保存的预设的信号质量参数的值，确定所述指定范围内的目标位置，在目标位置处户外网络设备与目标基站之间的信号最强。
根据步骤S103中举的示例可知，(P6，Q7)是水平方向和垂直方向信号最强的点，因此目标位置可以确定为(P6，Q7)。
S105、控制单元触发步进电机转动到目标位置。
根据步骤S104中举的示例可知，触发步进电机转动到(P6，Q7)，实现了对户外网络设备的调整。且在调整后的位置户外网络设备与目标基站之间的信号最强。
采用本申请实施例提供的技术方案，不需要用户手动调节户外网络设备的位置，通过触发步进电机转动到目标位置，能够实现在目标位置处户外网络设备与目标基站之间的信号最强，相对于人工盲调来说，本申请实施例提供的技术方案更加便捷，调整精度也更高。
请参阅图2，图2为本申请的一个实施例提供的一种户外网络设备的结构示意图，在毫米波通信时，户外网络设备200与目标基站进行通信，户外网络设备200包括：控制单元210、存储单元220、毫米波天线模组单元230和步进电机240。
控制单元210，用于获取目标基站的位置信息。在一些可能的实施方式中，在获取目标基站的位置信息之前，控制单元210还用于确定目标基站，所述目标基站是所述户外网络设备周围的基站中与户外网络设备进行通信时信号最强的基站。控制单元210通过毫米波天线模组单元230可以获取户外网络设备200与周围基站的信号强度信息，举例来说，若控制单元210获取到其与周围3个基站A1、A2、和A3的信号强度分别为，a1、a2、和a3，其中a2＞a1＞a3，则将信号强度最大的A2确定为目标基站。
在一些可能的实施方式中，获取目标基站的位置信息可以包括：获取用户输入的目标基站的位置信息。在另外一些可能的实施方式中，目标基站的位置信息也可以在与目标基站建立通信连接后，从目标基站获取目标基站的位置信息，目标基站的位置信息可以是目标基站的经纬度信息等。
控制单元210还用于，根据目标基站的位置信息确定户外网络设备的初始安装位置，根据初始安装位置户外网络设备被安装在安装支架上；在初始安装位置处，控制单元控制毫米波天线模组单元中的毫米波天线的主瓣方向朝向所述目标基站的位置。这样，户外网络设备在初始安装时，大致朝向目标基站，这样可以减少后续步进电机转动的范围，步进电机只需要在较小的范围内转动就可以确定目标位置。
控制单元210还用于，控制步进电机240在初始安装位置对应的指定范围内转动，步进电机240转动时带动户外网络设备200相对于安装支架转动，将步进电机240每次转动后预设的信号质量参数的值和步进电机240的位置保存在存储单元220。
在一些可能的实施方式中，控制单元210可以控制步进电机240在初始安装位置为中心的指定范围内转动。
比如，指定的范围可以是从以初始位置为中心水平方向顺时针转动45度至以初始位置为中心水平方向逆时针转动45度，以及以初始位置为中心，垂直方向顺时针转动45度至以初始位置为中心垂直方向逆时针转动45度对应的范围为指定的范围。
具体移动时，可以以固定的角度进行移动，比如每次转动3度。可以理解的，为了提高精度也可以每次转动更小的度数，比如每次转动1度。
可以理解的，越接近目标位置信号强度越强，为了提高精度，在检测到信号越来越强时，可以逐渐减小转动的角度。举例来说若步进电机初始转动度数为3度，在检测到移动后的位置相对于移动前的位置的信号强度增强超过5％时，将转动度数降为前一次转动角度的50％。比如降为每次转动为1.5度。需要说明的是，可以根据预设的信号质量参数的值 来表示信号的强弱。
在一些可能的实施方式中，预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。举例来说，预设的信号指令参数可以是参考信号接收功率，或者预设的信号指令参数也可以是信噪比，或者预设的信号指令参数可以同时由参考信号接收功率和信噪比确定，若参考信号接收功率为X1，信噪比为X2，预设公式可以为X1-0.2*X2，即可以根据公式X1-0.2*X2确定的值衡量户外网络设备与基站之间的信号强弱。
举例来说，若以初始安装位置为中心，水平方向转动到的位置对应10个点，分别为P1、P2、P3、P4、P5、P6、P7、P8、P9、P10，每个位置处检测到的预设信号指令参数的值分别为p1、p2、p3、p4、p5、p6、p7、p8、p9、p10，且p1＜p10＜p2＜p3＜p9＜p8＜p4＜p5＜p7＜p6。若垂直方向转动到的位置也对应10个点，分别为Q1、Q2、Q3、Q4、Q5、Q6、Q7、Q8、Q9、Q10，每个位置处检测到的预设信号指令参数的值分别为q1、q2、q3、q4、q5、q6、q7、q8、q9、q10。q1＜q10＜q2＜q3＜q9＜q8＜q4＜p5＜p6＜p7。
控制单元210还用于遍历存储单元220中保存的预设的信号质量参数的值，确定所述指定范围内的目标位置，在所述目标位置处所述户外网络设备与所述目标基站之间的信号最强。
以前面所举示例为例，(P6，Q7)是水平方向和垂直方向信号最强的点，因此目标位置可以确定为(P6，Q7)。
控制单元210还用于触发步进电机240转动到目标位置。
以前面所举示例为例，控制单元210还用于触发步进电机240转动到(P6，Q7)，这样就实现了对户外网络设备200的调整。在目标位置，户外网络设200与目标基站之间的信号最强。
采用本申请实施例提供的技术方案，不需要用户手动调节户外网络设备的位置，通过触发步进电机转动到目标位置，能够实现在目标位置处户外网络设备与目标基站之间的信号最强，相对于人工盲调来说，本申请实施例提供的技术方案更加便捷，调整精度也更高。
本申请实施例还提供了一种计算机可读存储介质，计算机可读存储介质存储有指令，当所述指令在户外网络设备上运行时，使得所述户外网络设备执行前面任一实施例所述户外网络设备的调整方法的部分步骤或全部步骤。
本申请实施例还提供了一种计算机程序产品，当所述计算机程序产品在计算机上运行时，使得所述户外网络设备的调整方法的部分步骤或全部步骤。
上述具体的方法实施例以及实施例中技术特征的解释、表述、以及多种实现形式的扩展也适用于装置中的方法执行，装置实施例中不予以赘述。
应理解以上装置中的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。例如，以上各个模块可以为单独设立的处理元件，也可以集成在终端的某一个芯片中实现，此外，也可以以程序代码的形式存储于控制器的存储元件中，由处理器的某一个处理元件调用并执行以上各个模块的功能。此外各个模块可以集成在一起，也可以独立实现。这里所述的控制单元可以是一种集成电 路芯片，具有通信和信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过控制器中的硬件的集成逻辑电路或者软件形式的指令完成。该控制单元可以是通用处理器，例如处理器(central processing unit，CPU)，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application-specific integrated circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field-programmable gate array，FPGA)等。
应理解本发明的说明书和权利要求书及上述附图中的标识等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (10)

  1. 一种户外网络设备的调整方法，其特征在于，在毫米波通信时，所述户外网络设备与目标基站进行通信，所述户外网络设备包括：控制单元、存储单元、毫米波天线模组单元和步进电机，所述方法包括如下步骤：
    所述控制单元获取所述目标基站的位置信息；
    所述控制单元根据所述目标基站的位置信息确定所述户外网络设备的初始安装位置，根据初始安装位置所述户外网络设备被安装在安装支架上；在所述初始安装位置处，所述控制单元控制所述毫米波天线模组单元中的毫米波天线的主瓣方向朝向所述目标基站的位置；
    所述控制单元控制所述步进电机在所述初始安装位置对应的指定范围内转动，所述步进电机转动时带动所述户外网络设备相对于所述安装支架转动，将所述步进电机每次转动后预设的信号质量参数的值和所述步进电机的位置保存在所述存储单元；
    所述控制单元遍历所述存储单元中保存的所述预设的信号质量参数的值，确定所述指定范围内的目标位置，在所述目标位置处所述户外网络设备与所述目标基站之间的信号最强；
    所述控制单元触发所述步进电机转动到所述目标位置。
  2. 根据权利要求1所述的方法，其特征在于，在所述控制单元获取所述目标基站的位置信息之前，所述方法还包括：
    所述控制单元确定目标基站，所述目标基站是所述户外网络设备周围的基站中与所述户外网络设备进行通信时信号最强的基站。
  3. 根据权利要求1所述的方法，其特征在于，所述控制单元获取所述目标基站的位置信息，包括：
    所述控制单元获取用户输入的所述目标基站的位置信息；或者，
    所述控制单元在与所述目标基站建立通信连接后，从所述目标基站获取的所述目标基站的位置信息。
  4. 根据权利要求1所述的方法，其特征在于，所述控制单元控制所述步进电机在所述初始安装位置对应的指定范围内转动，包括：
    所述控制单元控制所述步进电机在所述初始安装位置为中心的指定范围内转动。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，
    所述预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。
  6. 一种户外网络设备，其特征在于，在毫米波通信时，所述户外网络设备与目标基站 进行通信，所述户外网络设备包括：控制单元、存储单元、毫米波天线模组单元和步进电机；
    所述控制单元，用于获取所述目标基站的位置信息；
    所述控制单元还用于，根据所述目标基站的位置信息确定所述户外网络设备的初始安装位置，根据初始安装位置所述户外网络设备被安装在安装支架上；在所述初始安装位置处，所述控制单元还用于控制所述毫米波天线模组单元中的毫米波天线的主瓣方向朝向所述目标基站的位置；
    所述控制单元还用于，控制所述步进电机在所述初始安装位置对应的指定范围内转动，所述步进电机转动时带动所述户外网络设备相对于所述安装支架转动，将所述步进电机每次转动后预设的信号质量参数的值和所述步进电机的位置保存在所述存储单元；遍历所述存储单元中保存的所述预设的信号质量参数的值，确定所述指定范围内的目标位置，在所述目标位置处所述户外网络设备与所述目标基站之间的信号最强；
    所述控制单元还用于，触发所述步进电机转动到所述目标位置。
  7. 根据权利要求6所述的户外网络设备，其特征在于，
    所述控制单元还用于，在获取目标基站的位置信息之前，确定目标基站，所述目标基站是所述户外网络设备周围的基站中与所述户外网络设备进行通信时信号最强的基站。
  8. 根据权利要求6所述的户外网络设备，其特征在于，
    所述控制单元在获取目标基站的位置信息方面，具体用于获取用户输入的所述目标基站的位置信息；或者，在与所述目标基站建立通信连接后，从所述目标基站获取的所述目标基站的位置信息。
  9. 根据权利要求6所述的户外网络设备，其特征在于，
    所述控制单元在控制所述步进电机在所述初始安装位置对应的指定范围内转动方面，具体用于控制所述步进电机在所述初始安装位置为中心的指定范围内转动。
  10. 根据权利要求6至9任一项所述的户外网络设备，其特征在于，
    所述预设的信号指令参数包括如下参数中的任意一种或者如下所述参数中任意多种参数按照预设公式计算后得到的参数：参考信号接收功率、信噪比。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110366242B (zh) * 2019-07-11 2021-03-23 华为技术有限公司 一种户外网络设备的调整方法和户外网络设备
CN111163372A (zh) * 2019-12-28 2020-05-15 Oppo广东移动通信有限公司 网络设备
CN111313925B (zh) 2020-01-21 2021-11-09 Oppo广东移动通信有限公司 客户前置设备、天线控制方法和计算机可读存储介质
CN111585667A (zh) * 2020-05-19 2020-08-25 上海中觅通信技术有限公司 一种odu校准系统及odu校准方法
CN112152676A (zh) * 2020-09-21 2020-12-29 上海旷通科技有限公司 用于odu定向天线的调整方法及信息处理方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1337075A (zh) * 1999-01-20 2002-02-20 诺基亚网络有限公司 瞄准无线电链路天线的装置
CN1972010A (zh) * 2005-11-23 2007-05-30 英保达股份有限公司 一种天线自动调整方法及其系统
CN109660941A (zh) * 2019-01-08 2019-04-19 武汉虹信通信技术有限责任公司 终端定位方法和装置
US20190198969A1 (en) * 2017-12-26 2019-06-27 Limited Liability Company "Radio Gigabit" Method for elimination of antenna angular orientation error in point-to-point communication system
CN110366242A (zh) * 2019-07-11 2019-10-22 华为技术有限公司 一种户外网络设备的调整方法和户外网络设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012171205A1 (zh) * 2011-06-16 2012-12-20 华为技术有限公司 相控阵天线对准方法和装置以及相控阵天线
US10511090B2 (en) * 2016-07-11 2019-12-17 Sentenia Systems, Inc. Wireless telecommunication antenna mount and control system
CN107991658B (zh) * 2017-11-24 2020-04-24 上海机电工程研究所 毫米波阵列天线径向距离校准方法
CN107968263A (zh) * 2017-11-27 2018-04-27 张炜 一种自动调节角度的天线
CN108808243A (zh) * 2018-06-15 2018-11-13 深圳臻迪信息技术有限公司 调整天线的方法、装置和无人设备系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1337075A (zh) * 1999-01-20 2002-02-20 诺基亚网络有限公司 瞄准无线电链路天线的装置
CN1972010A (zh) * 2005-11-23 2007-05-30 英保达股份有限公司 一种天线自动调整方法及其系统
US20190198969A1 (en) * 2017-12-26 2019-06-27 Limited Liability Company "Radio Gigabit" Method for elimination of antenna angular orientation error in point-to-point communication system
CN109660941A (zh) * 2019-01-08 2019-04-19 武汉虹信通信技术有限责任公司 终端定位方法和装置
CN110366242A (zh) * 2019-07-11 2019-10-22 华为技术有限公司 一种户外网络设备的调整方法和户外网络设备

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