WO2014114252A1 - Power control method and device, beam forming apparatus - Google Patents

Power control method and device, beam forming apparatus Download PDF

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Publication number
WO2014114252A1
WO2014114252A1 PCT/CN2014/071246 CN2014071246W WO2014114252A1 WO 2014114252 A1 WO2014114252 A1 WO 2014114252A1 CN 2014071246 W CN2014071246 W CN 2014071246W WO 2014114252 A1 WO2014114252 A1 WO 2014114252A1
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WIPO (PCT)
Prior art keywords
power
array
channel
switching module
antenna
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PCT/CN2014/071246
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French (fr)
Chinese (zh)
Inventor
邓长顺
赵凯
古斯塔夫森马蒂亚斯
张辉
Original Assignee
华为技术有限公司
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Publication of WO2014114252A1 publication Critical patent/WO2014114252A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a power control method and apparatus, and a beamforming device. Background technique
  • the switching module When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power synthesis network;
  • the switching module When the beam is turned, the switching module is placed in the second switching position such that the RF channel array and the antenna array are connected by a bypass through channel.
  • the switching module includes a radio frequency switch.
  • the present invention provides a power control device for use in a beamforming technology of a smart antenna, including:
  • the switching module includes a radio frequency switch.
  • the present invention provides a beamforming device for use in a beamforming technology of a smart antenna, comprising: the above power control device.
  • the switching module when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed
  • the straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
  • FIG. 1 is a schematic flowchart of a power control method according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a beamforming device of a smart antenna according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a power control device according to another embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a beamforming device according to another embodiment of the present invention. detailed description
  • the technical solution of the present invention is applied to a beamforming technology of a smart antenna.
  • FIG. 1 is a schematic flowchart of a power control method according to an embodiment of the present invention. As shown in FIG. 1 , the power control method in this embodiment may include:
  • the switching module When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power combining network.
  • FIG. 2 is a schematic structural diagram of a beamforming device of a smart antenna according to an embodiment of the present invention.
  • a beamforming device of a digital domain when beam broadening is required, places a switching module at a first switching position, so that a radio frequency is obtained.
  • the channel array and the antenna array are connected by a power synthesis network.
  • the switching module is specifically implemented by using a radio frequency switch, or the switching module may be specifically implemented by adding a set of microstrip lines with an electrical length of 180 degrees *m through the radio frequency switch.
  • the power synthesis network can be implemented with a special set of bridges, for example
  • Figure 2 shows an antenna array of two antenna elements.
  • Each antenna element is a common microstrip antenna.
  • the spacing of the antenna elements is 0.6 times.
  • the beam width is 40 degrees.
  • the output power of each power amplifier (referred to as power amplifier) is 1.25W, and the attenuation of the filter is 1dB (English: Decibel, abbreviated as dB), then the input power of each antenna unit is 1W.
  • the transmit power of one power amplifier needs to be reduced. For example, to achieve a beamwidth of 65 degrees for a horizontal beam, if the RF channel array and the antenna array are not connected by a power synthesis network, one power amplifier needs to be used. The output power is reduced to 0.0125W, and the input power of the antenna unit connected to the power-reduced power amplifier is only 0.01W. It can be seen that the total output capability of the two amplifiers is reduced from 2.5W to 1.0125W; and the input power of the two antenna units is 1.01W, which causes a huge waste of the output power of the power amplifier.
  • the RF channel array and the antenna array are connected by a power synthesis network, wherein the insertion loss of the power synthesis network is 0.3 dB, at this time, the total input power of the two antenna units is 1.88 W, thereby reducing the output of the power amplifier. Waste of power.
  • the switching module When the beam is turned, the switching module is placed in the second switching position, so that the RF channel array and the antenna array are connected by a bypass through channel.
  • the power synthesis network is equivalent to a fast Fourier transform (FFT), in which case an antenna array is required.
  • FFT fast Fourier transform
  • the input port maintains an equal amplitude excitation, and a phase difference can be achieved according to different pointing requirements. Assuming that a 10 degree beam deflection is required, the output power of one power amplifier needs to be reduced from 1.25W to 0.16W, each antenna unit. The input power is 0.93W. At this time, there is also a huge waste of the output power of the power amplifier.
  • the switching module when the beam is turned, the switching module is placed in a second switching position, so that the RF channel array and the antenna array are connected through a bypass through channel, that is, when a beam is needed
  • the RF channel array and the antenna array do not need to be connected through the power synthesis network. It only needs to adjust the feed phase without reducing the output power of the amplifier. It is assumed that the output capability of each amplifier is 1.25W, filter. The attenuation is ldB, and the input power of each antenna unit is 1W.
  • steps 101 and 102 are not sequential, and may be selected for execution and cannot be executed in parallel.
  • the switching module when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed
  • the straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
  • the switching module can realize that the switching module is placed in the first switching position when the beam is broadened, so that the RF channel array Connected to the antenna array through a power synthesis network; when the beam steering is implemented, the switching module is placed in a second switching position, so that the RF channel array and the antenna array are connected by a bypass through channel, Thereby, the problem of waste of the output power of the power amplifier can be improved.
  • FIG. 3 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention. As shown in FIG. 3, including:
  • the switching module 31 is configured to be placed in the first switching position when the beam is widened, so that the RF channel array and the antenna array are connected by the power synthesis network; when the beam is turned, the second switching position is performed, so that the RF channel is The array and the antenna array are connected by a bypass through channel.
  • the switching module is specifically implemented by using a radio frequency switch, or the switching module may be specifically implemented by adding a set of microstrip lines with an electrical length of 180 degrees *m through the radio frequency switch.
  • the switching module when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed
  • the straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
  • FIG. 4 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention.
  • the power control apparatus includes a processor, a memory, and a communication bus.
  • the processor is connected to the memory through a communication bus, and is stored in the memory.
  • the switching module When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power synthesis network;
  • the switching module When the beam is turned, the switching module is placed in a second switching position such that the array of RF channels and the antenna array are connected by a bypass through channel.
  • the switching module is specifically implemented by using a radio frequency switch, or the switching module is specifically It can be realized by adding a set of microstrip lines with an electrical length of 180 degrees*m through the RF switch.
  • the switching module when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed
  • the straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
  • FIG. 5 is a schematic structural diagram of a beamforming device according to another embodiment of the present invention. As shown in FIG. 5, the system includes: an antenna array 51, a radio frequency channel array 52, and a power control device 53. The power control device 53 is shown in FIG. The power control device shown in FIG. 4 is described in detail with reference to the related description in the power control device shown in FIG. 3 or FIG. 4, and details are not described herein again.
  • the antenna array 51 is used to implement transmission of radio frequency signals into space to form patterns of different shapes. Generally, the antenna array is prior art and will not be described again.
  • the RF channel array 52 is used for modulating the digital signal to the RF operating frequency and amplifying the signal.
  • the RF channel array is prior art and will not be described again.
  • the beamforming device of the embodiment of the present invention can implement the switching module to be placed in the first switching position when the beam is broadened, so that the RF channel array and the antenna array are connected through the power synthesis network; the antenna can be improved by the power synthesis network. Input power of the array, thereby improving the waste of the output power of the power amplifier; further, when implementing beam steering, placing the switching module in a second switching position, such that the RF channel array and the antenna array By connecting through the bypass through-channel, it is only necessary to adjust the feed phase without reducing the output power of the power amplifier to achieve a narrow beam; therefore, it is possible to improve the problem of huge power waste in the existing beamforming equipment.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device implementation described above The example is only illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or integrated into another system, or Some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate.
  • the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit may be stored in the form of a code in a computer readable storage medium.
  • the above code is stored in a computer readable storage medium and includes instructions for causing a processor or hardware circuit to perform some or all of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a universal serial bus interface, a micro high-capacity mobile storage disk without a physical drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, ROM for short), and a random access memory (English: Random Access Memory, referred to as RAM), disk or optical disk, and other media that can store program code.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Disclosed in an embodiment of the present invention are a power control method and device, and a beam forming apparatus. In an embodiment of the present invention, when a beam is broadened, a switching module is placed at a first switching position, such that a radio-frequency channel array can be connected to an aerial array via a power synthesis network; and when the beam deflects, the switching module is placed at a second switching position, such that the radio-frequency channel array can be connected to the aerial array via a bypass straight-through channel, thus solving the problem of substantial power waste in an existing beam former.

Description

功率控制方法及装置、 波束成型设备 本申请要求于 201 3 年 1 月 23 日提交的中国 申请号为 201 31 0025003. 6、发明名称为 "功率控制方法及装置、 波束成型设备" 的中国申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域  Power control method and device, beam forming device The present application claims the Chinese application number submitted on January 23, 201, 201 31 0025003. 6. The invention titled "Power Control Method and Device, Beam Forming Equipment" Priority is hereby incorporated by reference in its entirety. Technical field
本发明实施例涉及通信技术领域， 尤其涉及一种功率控制方法 及装置、 波束成型设备。 背 景技术  The embodiments of the present invention relate to the field of communications technologies, and in particular, to a power control method and apparatus, and a beamforming device. Background technique
近年来在通信基站的设计领域， 为了改善***的性能， 提高系 统的容量， 智能天线技术越来越受到重视。 这类技术往往通过阵列天线 或者多天线切换的方式， 实现灵活可变的波束方向图， 具体可以通过模 拟域或者数字域对天线阵的馈电幅度和相位的加权， 可以实现灵活可变 的波束， 达到一些精准覆盖或者抗干扰的效果。  In recent years, in the field of communication base station design, in order to improve the performance of the system and increase the capacity of the system, smart antenna technology has received more and more attention. Such technologies often implement flexible and variable beam patterns by means of array antennas or multi-antenna switching. Specifically, the amplitude and phase of the antenna array can be weighted by analog or digital domains, and flexible variable beams can be realized. , to achieve some precision coverage or anti-interference effect.
然而， 为了实现天线阵的馈电幅度和相位的加权， 往往需要把 一些功放的输出功率降低，从而导致空口的等效全向辐射功率严重下降， 造成了巨大的功率浪费。 发 明 内 容  However, in order to achieve the weighting of the feeding amplitude and phase of the antenna array, it is often necessary to reduce the output power of some power amplifiers, thereby causing a serious drop in the equivalent omnidirectional radiated power of the air interface, resulting in huge power waste. Invented content
本发明提供一种功率控制方法及装置、 波束成型设备， 用以改善 现有的波束成型设备中存在巨大的功率浪费的问题。  The present invention provides a power control method and apparatus, and a beamforming apparatus for improving the problem of huge power waste in existing beam forming apparatuses.
第一方面， 本发明提供一种功率控制方法， 应用于智能天线的波 束成型技术中， 包括：  In a first aspect, the present invention provides a power control method for use in a beamforming technology of a smart antenna, including:
当波束展宽时， 将切换模块置于第一切换位置， 使得射频通道阵 列与天线阵列之间通过功率合成网络连接；  When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power synthesis network;
当波束转向时， 将所述切换模块置于第二切换位置， 使得所述射 频通道阵列与所述天线阵列之间通过旁路直通通道连接。 基于第一方面， 在第一种可能的实现方式中， 所述切换模块包括 射频开关。 When the beam is turned, the switching module is placed in the second switching position such that the RF channel array and the antenna array are connected by a bypass through channel. Based on the first aspect, in a first possible implementation, the switching module includes a radio frequency switch.
第二方面， 本发明提供一种功率控制装置， 应用于智能天线的波 束成型技术中， 包括：  In a second aspect, the present invention provides a power control device for use in a beamforming technology of a smart antenna, including:
切换模块， 用于当波束展宽时， 置于第一切换位置， 使得射频通 道阵列与天线阵列之间通过功率合成网络连接；当波束转向时， 置于第二 切换位置， 使得所述射频通道阵列与所述天线阵列之间通过旁路直通通 道连接。  a switching module, configured to be placed in the first switching position when the beam is widened, so that the RF channel array and the antenna array are connected by a power synthesis network; when the beam is turned, the second switching position is performed, so that the RF channel array is Connected to the antenna array through a bypass through channel.
基于第二方面， 在第一种可能的实现方式中， 所述切换模块包括 射频开关。  Based on the second aspect, in a first possible implementation manner, the switching module includes a radio frequency switch.
第三方面， 本发明提供一种波束成型设备， 应用于智能天线的波 束成型技术中， 包括： 上述功率控制装置。  In a third aspect, the present invention provides a beamforming device for use in a beamforming technology of a smart antenna, comprising: the above power control device.
本发明实施例通过切换模块能够实现在波束展宽时， 将切换模块 置于第一切换位置， 使得射频通道阵列与天线阵列之间通过功率合成网 络连接;通过功率合成网络能够提高天线阵列的输入功率， 从而可以改善 功放的输出功率的浪费问题； 进一步地， 当在实现波束转向时， 将所述 切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之 间通过旁路直通通道连接， 只需要通过馈电相位的调整而不需要降低功 放的输出功率即可实现窄波束； 因此， 可以改善现有的波束成型设备中 存在巨大的功率浪费的问题。 附 图 说明  In the embodiment of the present invention, when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed The straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved. Attachment
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下 面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下面描述中的附图是本发明的一些实施例， 对于本领域 普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这 些附图获得其他的附图。  In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.
图 1为本发明一实施例提供的功率控制方法的流程示意图； 图 2 为本发明实施例应用的智能天线的波束成型设备的结构示 意图；  1 is a schematic flowchart of a power control method according to an embodiment of the present invention; and FIG. 2 is a schematic structural diagram of a beamforming device of a smart antenna according to an embodiment of the present invention;
图 3为本发明另一实施例提供的功率控制装置的流程示意图； 图 4为本发明另一实施例提供的功率控制装置的流程示意图； 图 5为本发明另一实施例提供的波束成型设备的结构示意图。 具体 实 施 方 式 3 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention; FIG. 4 is a schematic flowchart of a power control device according to another embodiment of the present invention; FIG. 5 is a schematic structural diagram of a beamforming device according to another embodiment of the present invention. detailed description
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结 合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完 整地描述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部 的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。  The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.
本发明的技术方案应用于智能天线的波束成型技术中。  The technical solution of the present invention is applied to a beamforming technology of a smart antenna.
图 1为本发明一实施例提供的功率控制方法的流程示意图，如图 1 所示， 本实施例的功率控制方法可以包括：  FIG. 1 is a schematic flowchart of a power control method according to an embodiment of the present invention. As shown in FIG. 1 , the power control method in this embodiment may include:
101、 当波束展宽时， 将切换模块置于第一切换位置， 使得射频通 道阵列与天线阵列之间通过功率合成网络连接。  101. When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power combining network.
图 2 为本发明实施例应用的智能天线的波束成型设备的结构示意 图， 如图 2所示的数字域的波束成型设备， 当需要波束展宽时， 将切换 模块置于第一切换位置， 使得射频通道阵列与天线阵列之间通过功率合 成网络连接。  2 is a schematic structural diagram of a beamforming device of a smart antenna according to an embodiment of the present invention. As shown in FIG. 2, a beamforming device of a digital domain, when beam broadening is required, places a switching module at a first switching position, so that a radio frequency is obtained. The channel array and the antenna array are connected by a power synthesis network.
其中， 切换模块具体通过射频开关来实现， 或者切换模块具体还 可以通过射频开关加一组电长度为 180度 *m的微带线来实现。  The switching module is specifically implemented by using a radio frequency switch, or the switching module may be specifically implemented by adding a set of microstrip lines with an electrical length of 180 degrees *m through the radio frequency switch.
其中， 功率合成网络可以用一组特殊设计的电桥来实现， 例如 Among them, the power synthesis network can be implemented with a special set of bridges, for example
Butler矩阵， Butler矩阵为现有技术， 不再赘述。 Butler matrix, Butler matrix is prior art and will not be described again.
如图 2所示为 2个天线单元的天线阵列， 每一个天线单元都是一 个常见的微带天线， 天线单元的间距为 0.6倍波长， 在等幅同相馈电时 波束宽度为 40度，每个功率放大器（简称为功放）的输出功率都是 1.25W, 滤波器的衰减为 1分贝 （英文： Decibel , 简称 dB ) , 则每一个天线单元 的输入功率为 1W。  Figure 2 shows an antenna array of two antenna elements. Each antenna element is a common microstrip antenna. The spacing of the antenna elements is 0.6 times. When the equal-amplitude in-phase is fed, the beam width is 40 degrees. The output power of each power amplifier (referred to as power amplifier) is 1.25W, and the attenuation of the filter is 1dB (English: Decibel, abbreviated as dB), then the input power of each antenna unit is 1W.
当需要实现波束展宽时， 需要降低一路功放的发射功率， 例如， 要实现一个水平波束 65度的波束宽度时，如果射频通道阵列与天线阵列 之间没有通过功率合成网络连接， 则需要将一路功放的输出功率降低到 0.0125W, 与功率降低的功放连接的天线单元的输入功率只有 0.01W,由 此可知， 两个功放的总的输出能力从 2.5W 降低到了 1.0125W; 而两个 天线单元的的输入功率 1.01W,从而造成了功放的输出功率的巨大浪费。 When beam broadening is required, the transmit power of one power amplifier needs to be reduced. For example, to achieve a beamwidth of 65 degrees for a horizontal beam, if the RF channel array and the antenna array are not connected by a power synthesis network, one power amplifier needs to be used. The output power is reduced to 0.0125W, and the input power of the antenna unit connected to the power-reduced power amplifier is only 0.01W. It can be seen that the total output capability of the two amplifiers is reduced from 2.5W to 1.0125W; and the input power of the two antenna units is 1.01W, which causes a huge waste of the output power of the power amplifier.
如果射频通道阵列与天线阵列之间通过功率合成网络连接， 其中， 功率合成网络的插损为 0.3dB , 此时， 两个天线单元的的输入总功率为 1.88W, 因此可以降低对功放的输出功率的浪费。  If the RF channel array and the antenna array are connected by a power synthesis network, wherein the insertion loss of the power synthesis network is 0.3 dB, at this time, the total input power of the two antenna units is 1.88 W, thereby reducing the output of the power amplifier. Waste of power.
102、 当波束转向时， 将所述切换模块置于第二切换位置， 使得所 述射频通道阵列与所述天线阵列之间通过旁路直通通道连接。  102. When the beam is turned, the switching module is placed in the second switching position, so that the RF channel array and the antenna array are connected by a bypass through channel.
当需要波束转向时， 如果射频通道阵列与天线阵列之间还通过 功率合成网络连接， 则功率合成网络相当于一个快速傅立叶变换（英文: fast Fourier transform , 简称 FFT ) , 此时， 需要在天线阵列的输入口保 持等幅度的激励， 并且根据不同的指向要求能实现一个相位差， 假设需 要实现一个 10度波束的偏转， 需要将一路功放的输出功率从 1.25W降 低为 0.16W, 每个天线单元的输入功率为 0.93W, 此时， 也会存在功放 的输出功率的巨大浪费。  When beam steering is required, if the RF channel array and the antenna array are connected by a power synthesis network, the power synthesis network is equivalent to a fast Fourier transform (FFT), in which case an antenna array is required. The input port maintains an equal amplitude excitation, and a phase difference can be achieved according to different pointing requirements. Assuming that a 10 degree beam deflection is required, the output power of one power amplifier needs to be reduced from 1.25W to 0.16W, each antenna unit. The input power is 0.93W. At this time, there is also a huge waste of the output power of the power amplifier.
如图 2所示， 当波束转向时， 将所述切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之间通过旁路直通通道连接， 也 就是说， 当需要波束转向时， 射频通道阵列与天线阵列之间不需要通过 功率合成网络连接， 只需要通过馈电相位的调整而不需要降低功放的输 出功率，假设每个功放的输出能力都是 1.25W, 滤波器的衰减为 ldB, 则 每一个天线单元的输入功率为 1W。  As shown in FIG. 2, when the beam is turned, the switching module is placed in a second switching position, so that the RF channel array and the antenna array are connected through a bypass through channel, that is, when a beam is needed When steering, the RF channel array and the antenna array do not need to be connected through the power synthesis network. It only needs to adjust the feed phase without reducing the output power of the amplifier. It is assumed that the output capability of each amplifier is 1.25W, filter. The attenuation is ldB, and the input power of each antenna unit is 1W.
需要说明的是， 上述步骤 101 和步骤 102没有先后顺序之分， 可 以选择执行， 不能并行执行。  It should be noted that the above steps 101 and 102 are not sequential, and may be selected for execution and cannot be executed in parallel.
本发明实施例通过切换模块能够实现在波束展宽时， 将切换模块 置于第一切换位置， 使得射频通道阵列与天线阵列之间通过功率合成网 络连接;通过功率合成网络能够提高天线阵列的输入功率， 从而可以改善 功放的输出功率的浪费问题； 进一步地， 当在实现波束转向时， 将所述 切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之 间通过旁路直通通道连接， 只需要通过馈电相位的调整而不需要降低功 放的输出功率即可实现窄波束； 因此， 可以改善现有的波束成型设备中 存在巨大的功率浪费的问题。  In the embodiment of the present invention, when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed The straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
需要说明的是， 对于模拟域的波束成型设备， 通过切换模块能够 实现在波束展宽时， 将切换模块置于第一切换位置， 使得射频通道阵列 与天线阵列之间通过功率合成网络连接； 当在实现波束转向时， 将所述 切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之 间通过旁路直通通道连接， 从而可以改善功放的输出功率的浪费问题。 It should be noted that, for the beamforming device in the analog domain, the switching module can realize that the switching module is placed in the first switching position when the beam is broadened, so that the RF channel array Connected to the antenna array through a power synthesis network; when the beam steering is implemented, the switching module is placed in a second switching position, so that the RF channel array and the antenna array are connected by a bypass through channel, Thereby, the problem of waste of the output power of the power amplifier can be improved.
图 3 为本发明另一实施例提供的功率控制装置的流程示意图； 如 图 3所示， 包括：  FIG. 3 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention; as shown in FIG. 3, including:
切换模块 31 , 用于当波束展宽时， 置于第一切换位置， 使得射频 通道阵列与天线阵列之间通过功率合成网络连接；当波束转向时， 置于第 二切换位置， 使得所述射频通道阵列与所述天线阵列之间通过旁路直通 通道连接。  The switching module 31 is configured to be placed in the first switching position when the beam is widened, so that the RF channel array and the antenna array are connected by the power synthesis network; when the beam is turned, the second switching position is performed, so that the RF channel is The array and the antenna array are connected by a bypass through channel.
其中， 切换模块具体通过射频开关来实现， 或者切换模块具体还 可以通过射频开关加一组电长度为 180度 *m的微带线来实现。  The switching module is specifically implemented by using a radio frequency switch, or the switching module may be specifically implemented by adding a set of microstrip lines with an electrical length of 180 degrees *m through the radio frequency switch.
需要说明的是， 通过切换模块的切换实现功率控制的原理可以参 考图 1所示实施例中的相关内容， 不再赘述。  It should be noted that the principle of the power control by the switching of the switching module can refer to the related content in the embodiment shown in FIG. 1 and will not be described again.
本发明实施例通过切换模块能够实现在波束展宽时， 将切换模块 置于第一切换位置， 使得射频通道阵列与天线阵列之间通过功率合成网 络连接;通过功率合成网络能够提高天线阵列的输入功率， 从而可以改善 功放的输出功率的浪费问题； 进一步地， 当在实现波束转向时， 将所述 切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之 间通过旁路直通通道连接， 只需要通过馈电相位的调整而不需要降低功 放的输出功率即可实现窄波束； 因此， 可以改善现有的波束成型设备中 存在巨大的功率浪费的问题。  In the embodiment of the present invention, when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed The straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
图 4 为本发明另一实施例提供的功率控制装置的流程示意图， 如 图 4所示， 所述功率控制装置包括处理器、 存储器和通信总线， 处理器 通过通信总线与存储器连接，存储器中保存有实现功率控制方法的指令； 进一步地， 所述功率控制装置还包括切换模块、 功率合成网络和 旁路直通通道；  FIG. 4 is a schematic flowchart of a power control apparatus according to another embodiment of the present invention. As shown in FIG. 4, the power control apparatus includes a processor, a memory, and a communication bus. The processor is connected to the memory through a communication bus, and is stored in the memory. There is an instruction for implementing a power control method; further, the power control device further includes a switching module, a power synthesis network, and a bypass through channel;
当处理器调取存储器中的指令时， 可以执行如下步骤：  When the processor retrieves instructions in memory, the following steps can be performed:
当波束展宽时， 将切换模块置于第一切换位置， 使得射频通道阵 列与天线阵列之间通过功率合成网络连接；  When the beam is widened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected by a power synthesis network;
当波束转向时， 将所述切换模块置于第二切换位置， 使得所述射 频通道阵列与所述天线阵列之间通过旁路直通通道连接。  When the beam is turned, the switching module is placed in a second switching position such that the array of RF channels and the antenna array are connected by a bypass through channel.
其中， 切换模块具体通过射频开关来实现， 或者切换模块具体还 可以通过射频开关加一组电长度为 180度 *m的微带线来实现。 The switching module is specifically implemented by using a radio frequency switch, or the switching module is specifically It can be realized by adding a set of microstrip lines with an electrical length of 180 degrees*m through the RF switch.
需要说明的是， 通过切换模块的切换实现功率控制的原理可以参 考图 1所示实施例中的相关内容， 不再赘述。  It should be noted that the principle of the power control by the switching of the switching module can refer to the related content in the embodiment shown in FIG. 1 and will not be described again.
本发明实施例通过切换模块能够实现在波束展宽时， 将切换模块 置于第一切换位置， 使得射频通道阵列与天线阵列之间通过功率合成网 络连接;通过功率合成网络能够提高天线阵列的输入功率， 从而可以改善 功放的输出功率的浪费问题； 进一步地， 当在实现波束转向时， 将所述 切换模块置于第二切换位置， 使得所述射频通道阵列与所述天线阵列之 间通过旁路直通通道连接， 只需要通过馈电相位的调整而不需要降低功 放的输出功率即可实现窄波束； 因此， 可以改善现有的波束成型设备中 存在巨大的功率浪费的问题。  In the embodiment of the present invention, when the beam is broadened, the switching module is placed in the first switching position, so that the RF channel array and the antenna array are connected through the power synthesis network; the power of the antenna array can be improved by the power synthesis network. Therefore, the waste of the output power of the power amplifier can be improved; further, when the beam steering is implemented, the switching module is placed in the second switching position, so that the radio frequency channel array and the antenna array are bypassed The straight-through channel connection only needs to realize the narrow beam by adjusting the feed phase without reducing the output power of the power amplifier; therefore, the problem of huge power waste in the existing beamforming equipment can be improved.
图 5 为本发明另一实施例提供的波束成型设备的结构示意图， 如 图 5所示， 包括： 天线阵列 51、 射频通道阵列 52和功率控制装置 53 ; 其中， 功率控制装置 53为图 3或图 4所示的功率控制装置， 详细 内容参考图 3或图 4所示的功率控制装置中的相关描述， 不再赘述。  FIG. 5 is a schematic structural diagram of a beamforming device according to another embodiment of the present invention. As shown in FIG. 5, the system includes: an antenna array 51, a radio frequency channel array 52, and a power control device 53. The power control device 53 is shown in FIG. The power control device shown in FIG. 4 is described in detail with reference to the related description in the power control device shown in FIG. 3 or FIG. 4, and details are not described herein again.
关于天线阵列 51 , 用于实现射频信号到空间的传输， 以形成不同 形状的方向图， 通常， 天线阵列为现有技术， 不再赘述。  The antenna array 51 is used to implement transmission of radio frequency signals into space to form patterns of different shapes. Generally, the antenna array is prior art and will not be described again.
射频通道阵列 52 , 用于将数字信号调制到射频工作频率上并将信 号放大， 射频通道阵列为现有技术， 不再赘述。  The RF channel array 52 is used for modulating the digital signal to the RF operating frequency and amplifying the signal. The RF channel array is prior art and will not be described again.
本发明实施例波束成型设备可以通过切换模块能够实现在波束展 宽时， 将切换模块置于第一切换位置， 使得射频通道阵列与天线阵列之 间通过功率合成网络连接;通过功率合成网络能够提高天线阵列的输入 功率， 从而可以改善功放的输出功率的浪费问题； 进一步地， 当在实现 波束转向时， 将所述切换模块置于第二切换位置， 使得所述射频通道阵 列与所述天线阵列之间通过旁路直通通道连接， 只需要通过馈电相位的 调整而不需要降低功放的输出功率即可实现窄波束； 因此， 可以改善现 有的波束成型设备中存在巨大的功率浪费的问题。  The beamforming device of the embodiment of the present invention can implement the switching module to be placed in the first switching position when the beam is broadened, so that the RF channel array and the antenna array are connected through the power synthesis network; the antenna can be improved by the power synthesis network. Input power of the array, thereby improving the waste of the output power of the power amplifier; further, when implementing beam steering, placing the switching module in a second switching position, such that the RF channel array and the antenna array By connecting through the bypass through-channel, it is only necessary to adjust the feed phase without reducing the output power of the power amplifier to achieve a narrow beam; therefore, it is possible to improve the problem of huge power waste in the existing beamforming equipment.
所属领域的技术人员可以清楚地了解到， 为描述的方便和简洁， 上述描述的***， 装置和单元的具体工作过程， 可以参考前述方法实施 例中的对应过程， 在此不再赘述。  A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
在本申请所提供的几个实施例中， 应该理解到， 所揭露的***， 装置和方法， 可以通过其它的方式实现。 例如， 以上所描述的装置实施 例仅仅是示意性的， 例如， 所述单元的划分， 仅仅为一种逻辑功能划分， 实际实现时可以有另外的划分方式， 例如多个单元或组件可以结合或者 可以集成到另一个***， 或一些特征可以忽略， 或不执行。 另一点， 所 显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接 口， 装置或单元的间接耦合或通信连接， 可以是电性， 机械或其它的形 式。 In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device implementation described above The example is only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated into another system, or Some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开 的， 作为单元显示的部件可以是或者也可以不是物理单元， 即可以位于 一个地方， 或者也可以分布到多个网络单元上。 可以根据实际的需要选 择其中的部分或者全部单元来实现本实施例方案的目的。  The units described as separate components may or may not be physically separate. The components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理 单元中， 也可以是各个单元单独物理存在， 也可以两个或两个以上单元 集成在一个单元中。 上述集成的单元既可以釆用硬件的形式实现， 也可 以釆用硬件加软件功能单元的形式实现。  In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
上述以软件功能单元的形式实现的集成的单元， 可以以代码的形 式存储在一个计算机可读取存储介质中。 上述代码存储在一个计算机可 读存储介质中， 包括若干指令用以使处理器或硬件电路执行本发明各个 实施例所述方法的部分或全部步骤。 而前述的存储介质包括： 通用串行 总线接口的无需物理驱动器的微型高容量移动存储盘、 移动硬盘、 只读 存储器（英文： Read-Only Memory, 简称 ROM ) 、 随机存取存储器（英 文： Random Access Memory, 简称 RAM ) 、 磁碟或者光盘等各种可以 存储程序代码的介质。  The above-described integrated unit implemented in the form of a software functional unit may be stored in the form of a code in a computer readable storage medium. The above code is stored in a computer readable storage medium and includes instructions for causing a processor or hardware circuit to perform some or all of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a universal serial bus interface, a micro high-capacity mobile storage disk without a physical drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, ROM for short), and a random access memory (English: Random Access Memory, referred to as RAM), disk or optical disk, and other media that can store program code.
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而 非对其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域 的普通技术人员应当理解： 其依然可以对前述各实施例所记载的技术方 案进行修改， 或者对其中部分技术特征进行等同替换； 而这些修改或者 替换， 并不使相应技术方案的本质脱离本发明各实施例技术方案的保护 范围。  It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the technical scope of the technical solutions of the embodiments of the present invention.

Claims

权 利 要 求 书 Claim
1、 一种功率控制方法， 应用于智能天线的波束成型技术中， 其特征在于， 包括： 当波束展宽时， 将切换模块置于第一切换位置， 使得射频通道阵列与天线 阵列之间通过功率合成网络连接； 当波束转向时， 将所述切换模块置于第二切换位置， 使得所述射频通道阵 列与所述天线阵列之间通过旁路直通通道连接。  A power control method, which is applied to a beamforming technology of a smart antenna, comprising: placing a switching module in a first switching position when the beam is widened, so that a power is passed between the RF channel array and the antenna array; Synthesizing a network connection; when the beam is turned, placing the switching module in a second switching position such that the RF channel array and the antenna array are connected by a bypass through channel.
2、根据权利要求 1所述的方法， 其特征在于， 所述切换模块包括射频开关。  2. The method according to claim 1, wherein the switching module comprises a radio frequency switch.
3、 一种功率控制装置， 应用于智能天线的波束成型技术中， 其特征在于， 包括： 切换模块， 用于当波束展宽时， 置于第一切换位置， 使得射频通道阵列与 天线阵列之间通过功率合成网络连接；当波束转向时， 置于第二切换位置， 使得 所述射频通道阵列与所述天线阵列之间通过旁路直通通道连接。 A power control device for use in a beamforming technology of a smart antenna, comprising: a switching module, configured to be placed in a first switching position when the beam is broadened, such that between the RF channel array and the antenna array Connected by the power synthesis network; when the beam is turned, placed in the second switching position, so that the RF channel array and the antenna array are connected by a bypass through channel.
4、根据权利要求 3所述的装置， 其特征在于， 所述切换模块包括射频开关。  The device according to claim 3, wherein the switching module comprises a radio frequency switch.
5、 一种波束成型设备， 应用于智能天线的波束成型技术中， 其特征在于， 包括： 如权利要求 3或 4所述的功率控制装置。 A beamforming device for use in a beamforming technology of a smart antenna, comprising: the power control device according to claim 3 or 4.
PCT/CN2014/071246 2013-01-23 2014-01-23 Power control method and device, beam forming apparatus WO2014114252A1 (en)

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