WO2022002099A1 - Standing wave detection method, standing wave detection apparatus, and network device - Google Patents
Standing wave detection method, standing wave detection apparatus, and network device Download PDFInfo
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- WO2022002099A1 WO2022002099A1 PCT/CN2021/103365 CN2021103365W WO2022002099A1 WO 2022002099 A1 WO2022002099 A1 WO 2022002099A1 CN 2021103365 W CN2021103365 W CN 2021103365W WO 2022002099 A1 WO2022002099 A1 WO 2022002099A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/04—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
- G01R27/06—Measuring reflection coefficients; Measuring standing-wave ratio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Definitions
- the present disclosure relates to the field of communication technology.
- Base Station refers to a radio transceiver station that transmits information with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.
- Base Station refers to a radio transceiver station that transmits information with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.
- a standing wave detection method of a network device comprising: detecting a power level of a reflected signal (REV); detecting a power level of a forward signal (FWD); The power level of the reflected signal and the power level of the forward signal obtain the standing wave ratio corresponding to the multiple transmission channels of the network device, wherein the step of detecting the power level of the reflected signal includes: The multiple transmission channels of the network device send out standing wave detection signals; and the power level of the reflected signal is acquired through the multiple reception channels of the network device; the step of detecting the power level of the forward signal
- the method includes: controlling multiple transmit channels of the network device to send standing wave detection signals, and controlling one of the multiple receive channels to obtain the power level of the forward signal through an antenna calibration network.
- a standing wave detection apparatus for a network device, including: a storage medium, in which an executable program is stored; one or more processors, the one or more processing The controller can call the executable program to implement the standing wave detection method described above.
- a network device including an antenna calibration network, a standing wave detection device, a plurality of transmission channels and a plurality of reception channels, wherein the antenna calibration network is connected to the plurality of reception channels , the standing wave detection device is the aforementioned standing wave detection device.
- FIG. 1 is a schematic diagram of the connection relationship between a receiving and sending channel and a detection channel in the related art
- FIG. 2 is a schematic diagram of the connection relationship between a plurality of receiving and sending channels and detection channels in the related art
- FIG. 3 is a schematic diagram of the principle of implementing standing wave detection by receiving and transmitting channels and an antenna calibration network according to an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of another principle of implementing standing wave detection through receiving and transmitting channels and an antenna calibration network according to an embodiment of the present disclosure.
- standing wave detection In order to detect the performance of the base station in real time, it is often necessary to perform standing wave detection on the base station, that is, send a continuous sine wave (ie standing wave detection signal) or a single tone signal through the transmission channel of the base station, receive the reflected wave, and according to the forward signal FWD and The reflected signal REV is processed and analyzed to obtain information such as the standing wave ratio, and then the connection situation of the antenna-feeder cable and the fault situation of the base station.
- a continuous sine wave ie standing wave detection signal
- FWD forward signal
- the reflected signal REV is processed and analyzed to obtain information such as the standing wave ratio, and then the connection situation of the antenna-feeder cable and the fault situation of the base station.
- the standing wave detection signal is sent by the transmit channel TX, while the forward signal FWD and the reflected signal REV are both acquired by a separate detection channel ORX.
- the detection channel ORX obtains the forward signal FWD through the forward signal acquisition device, the reflected signal REV received by the receiving channel RX1 is transferred to the detection channel ORX through the switch, and the detection channel ORX receives the reflected signal REV and the forward signal in turn through the switch. to signal FWD.
- the number of detection channels used by the detection channel ORX is usually small.
- the number of transmission and reception channels of the base station has greatly increased compared with the previous ones.
- the reflected signal REV detection circuit and switch corresponding to the detection channel ORX will occupy a huge space, and the detection time will be long and the detection efficiency will be low.
- a method for detecting standing waves of a network device including the following steps S1 to S3:
- step S1 the power level of the reflected signal REV is detected
- step S2 the power level of the forward signal FWD is detected
- step S3 according to the detected power level of the reflected signal REV and the power level of the forward signal FWD, the standing wave ratios corresponding to the multiple transmission channels TX of the network device are obtained.
- step S1 of detecting the power level of the reflected signal REV includes the following steps S11 to S12:
- step S11 a standing wave detection signal is sent through a plurality of transmission channels TX of the network device.
- step S12 obtain the power level of the reflected signal REV through multiple receiving channels RX of the network device;
- the step S2 of detecting the power level of the forward signal FWD includes:
- step S21 control multiple transmission channels TX of the network device to send standing wave detection signals
- step S22 one of the receiving channels RX is controlled to obtain the power level of the forward signal FWD through the antenna calibration network (AC network) of the network device.
- AC network antenna calibration network
- FIG. 3 shows a circuit connection method corresponding to a radio frequency interface of the network device when the standing wave detection method provided by the present disclosure is used to detect the network device.
- the network device includes multiple transmit channels TX and multiple receive channels RX. For each radio frequency interface, there is one transmit channel TX and one receive channel RX corresponding to it.
- the receiving channel RX is also multiplexed to obtain the power level of the reflected signal REV in the standing wave detection in addition to the normal signal receiving work
- the antenna calibration network is also multiplexed to obtain each The power level of the forward signal FWD corresponding to each radio frequency interface. That is, in the present disclosure, by multiplexing the receiving channel RX and the antenna calibration network, the solution of using the detection channel ORX to realize the standing wave detection in the related art is replaced, and the detection channel ORX and the detection channel in the network device (eg, the base station) are omitted.
- the corresponding circuit structure of the signal acquisition device and switching device of the ORX simplifies the device structure of the network equipment, improves the utilization rate of the network equipment space, and reduces the wiring area and cost of the network equipment.
- multiple receiving channels RX can simultaneously receive the power levels of the reflected signals REV corresponding to multiple radio frequency interfaces without passing the switch structure shown in FIG. 2 .
- the channels are switched one by one, thereby improving the standing wave detection efficiency of network equipment and enabling efficient detection of network equipment (eg, 5G base stations).
- the network device may include 64 receive channels RX (RX1 to RX64) and 64 transmit channels TX (TX1) to TX64), corresponding to 64 RF interfaces (RF interface 1 to RF interface 64).
- the antenna calibration network is an n-in-one calibration network for compensating for the phase and amplitude difference between radio paths, and the embodiments of the present disclosure do not make any difference to how the antenna calibration network obtains the power level of the forward signal FWD.
- the antenna calibration network is connected to a channel corresponding to each radio frequency interface through a plurality of forward signal acquisition devices 23 .
- the forward signal acquisition device 23 may be a coupler.
- the embodiments of the present disclosure do not specifically limit how the transmit channel TX and the receive channel RX are connected to the radio frequency interface of the network device.
- the network device further includes a plurality of circulators 30 , and both the transmit channel TX and the receive channel RX can communicate with all the circulators 30 through the circulators 30 .
- the standing wave detection signal sent by the transmission channel TX can be unidirectionally transmitted to the radio frequency interface of the network device through the circulator 30, and the power level of the reflected signal REV returned by the radio frequency interface of the network device can pass through the radio frequency interface of the network device.
- the circulator 30 transmits unidirectionally to the transmit channel TX.
- a receiving channel RX1 can selectively conduct with the antenna calibration network or the radio frequency interface of the network device through the first selection switch 11 .
- the step S1 of detecting the power level of the forward signal FWD further includes, before sending the standing wave detection signal: controlling the one receiving channel RX1 to conduct with the antenna calibration network (that is, controlling the first selection switch 11 to The receiving channel RX1 is connected to the antenna calibration network);
- the step S2 of detecting the power level of the reflected signal REV also includes, before sending the standing wave detection signal: controlling a plurality of the receiving channels RX to pass through the corresponding circulators 300 and corresponding The radio frequency interface is turned on (that is, control the selection switches corresponding to the receiving channels RX1 to RX64 (see Figure 4), and connect the receiving channels RX1 to RX64 with the corresponding radio frequency interface, so as to realize that all the receiving channels RX are connected to the corresponding radio frequency interface turn on).
- the step S2 of detecting the power level of the reflected signal REV further includes, before sending the standing wave detection signal: controlling a plurality of the receiving channels RX to calibrate with the antenna The network is turned on (ie, the first selection switch 11 is controlled to connect the corresponding receiving channel RX to the antenna calibration network, so that all the receiving channels RX are connected to the antenna calibration network).
- the step S1 of detecting the power level of the FWD also includes, before sending the standing wave detection signal: controlling a receiving channel RX (that is, the receiving channel RX connected to the first selection switch 11 ) to communicate with the network through the circulator 30 The RF interface of the device is turned on.
- the step S3 of obtaining the standing wave ratios corresponding to the multiple transmission channels TX of the network device may include the following steps S31 to S33:
- step S31 the forward detection power linearity value is obtained from the power of the forward signal FWD, and the reverse detection power linearity value is obtained from the power of the reflected signal REV.
- step S32 a reflection coefficient is obtained according to the linear value of the forward detection power and the linear value of the reverse detection power.
- step S33 the standing wave ratio of the network device is obtained according to the reflection coefficient.
- step S31 the power of the forward signal FWD is obtained from the receiving channel RX gain of the antenna calibration network and the power level of the detected forward signal FWD, and the power of the reflected signal REV is obtained by
- the gain of each receive channel is obtained from the transmit channel TX gain of the antenna calibration network and the power level of the detected reflected signal REV, specifically:
- the standing wave detection method further includes the step S0 of acquiring the standing wave signal level to calibrate the standing wave detection signal, including the following steps S01 and S02:
- step S01 a transmission channel TX of the network device is controlled to send out a standing wave detection signal (the power is denoted as P actx ).
- step S02 multiple receiving channels RX of the network device are controlled to obtain the standing wave signal level (the power is recorded as an array P rx (i)) through the antenna calibration network.
- the transmit channel TX gain G actx of the antenna calibration network and the receive channel RX gain G acrx of the antenna calibration network are both measured in the production testing stage.
- step S31 the calculation formula for calculating the linear value of the forward detection power and the linear value of the reverse detection power is as follows:
- step S32 the calculation formula for calculating the reflection coefficient is as follows:
- step S33 the formula for calculating the standing wave ratio of the network device is as follows:
- i the channel number.
- the network device includes 64 radio frequency interfaces and corresponding 64 receiving channels RX and 64 transmitting channels TX, i can take 1 to 64, and finally the value of the standing wave ratio VSWR corresponding to the 64 channels can be calculated.
- a standing wave detection apparatus for a network device, including: a storage medium, in which an executable program is stored; one or more processors, the one or more The processor can call the executable program to implement the standing wave detection method described in the previous embodiment. Therefore, by multiplexing the receiving channel RX and the antenna calibration network, instead of using the detection channel ORX to realize the standing wave detection scheme in the related art, the structure of the network equipment is simplified, the wiring area and cost of the network equipment are reduced, and the performance of the network equipment is improved. Standing wave detection efficiency.
- a network device including an antenna calibration network, a standing wave detection device, multiple transmit channels TX and multiple receive channels RX, the antenna calibration network and the multiple receive channels connected, the standing wave detection device is the standing wave detection device described in the previous embodiment.
- the receiving channel RX is also used to obtain the power level of the reflected signal REV in the standing wave detection in addition to the normal signal receiving work.
- the antenna calibration network also Used to obtain the power level of the forward signal FWD corresponding to each radio interface. That is, in the present disclosure, by multiplexing the receiving channel RX and the antenna calibration network, the solution of using the detection channel ORX to realize standing wave detection in the related art is replaced, and the detection channel ORX in the network device and the detection channel ORX used by the transmitter are omitted.
- Corresponding circuit structures such as signal acquisition device and switch device for channel TX and receiving channel RX to acquire signals, thereby simplifying the device structure of network equipment, improving the utilization rate of network equipment space, and reducing the wiring area and cost of network equipment.
- multiple receiving channels RX can simultaneously receive the power level of the reflected signal REV corresponding to multiple radio frequency interfaces, which improves the standing wave detection efficiency of network equipment and can achieve high efficiency of network equipment. detection.
- the network device may be a base station (eg, a 5G base station).
- This embodiment of the present disclosure does not specifically limit how the antenna calibration network acquires the power level of the forward signal FWD.
- the antenna calibration network is connected to a channel corresponding to each radio frequency interface through a plurality of forward signal acquisition devices 23 .
- the forward signal acquisition device 23 may be a coupler.
- the network device further includes a first selection switch, the first selection switch 11 is connected to a receiving channel RX, and the receiving channel RX is selectively connected to the receiving channel RX through the first selection switch 11 .
- the antenna calibration network or the radio frequency interface of the network device is connected.
- the network device further includes a plurality of circulators 30 , and each of the transmit channels TX and each of the receive channels RX is connected to the radio frequency interface of the network device through the corresponding circulator 30 .
- the standing wave detection signal sent by the transmission channel TX can be unidirectionally transmitted to the radio frequency interface of the network device through the circulator 30 , and the reflected signal REV returned by the radio frequency interface of the network device can be unidirectionally transmitted through the circulator 30 . to the transmit channel TX.
- the network device further includes a plurality of transmitting devices 21 and a plurality of receiving devices 22, each of which The transmitting channel TX is connected to the circulator 30 through the transmitting device 21 , and each receiving channel RX is connected to the circulator 30 through the receiving device 22 , so as to be stabilized by the transmitting device 21 and the receiving device 22 Signal quality of transmit channel TX and receive channel RX.
- the embodiments of the present disclosure do not specifically limit the types of the transmitting device 21 and the receiving device 22.
- the transmitting device 21 may be a power amplifier (PA, Power Amplifier)
- the receiving device 22 may be a low noise Amplifier (LNA) or Switching Low Noise Amplifier (DSLNA).
- the network device in order to realize a multiplexed antenna calibration network (AC network), the network device further includes a second selection switch 12 and a third selection switch 13,
- the transmission channel TX is selectively connected to the circulator 30 or the third selection switch 13 through the second selection switch 12
- the antenna calibration network is selectively connected to the transmission through the third selection switch 13 .
- the channel TX or the receiving channel RX is connected, so that the antenna calibration network can respectively complete the task of antenna calibration and the task of network equipment standing wave detection in different time periods through the switch.
- the network device provided by the present disclosure replaces the solution of using the detection channel ORX to realize standing wave detection in the related art by multiplexing the receiving channel RX and the antenna calibration network, and omits the detection channel ORX, the signal acquisition device, and the switch device in the network device. and other corresponding circuit structures, thereby simplifying the equipment structure of the network equipment, improving the utilization rate of the network equipment space, and reducing the wiring area and cost of the network equipment.
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Abstract
The present application provides a standing wave detection method and a standing wave detection apparatus for a network device, and a network device. The standing wave detection method comprises: measuring a power level of a reflected signal and a power level of a forward signal of a network device; and obtaining, according to the measured power level of the reflected signal and power level of the forward signal, standing wave ratios corresponding to a plurality of transmit channels of the network device. Steps for measuring a power level of a reflected signal comprises: sending standing wave detection signals through a plurality of transmit channels of a network device; and obtaining a power level of a reflected signal through a plurality of receive channels of the network device. Steps for measuring a power level of a forward signal comprises: controlling a plurality of transmit channels of a network device to send standing wave detection signals; and controlling a receive channel to obtain a power level of a forward signal via an antenna calibration network.
Description
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求于2020年6月30提交的中国专利申请NO.202010616791.6的优先权,该中国专利申请的全部内容通过引用结合在本申请中。This application claims priority to Chinese patent application No. 202010616791.6 filed on June 30, 2020, the entire contents of which are incorporated herein by reference.
本公开涉及通信技术领域。The present disclosure relates to the field of communication technology.
基站(Base Station)是指在一定的无线电覆盖区中,通过移动通信交换中心,与移动电话终端之间进行信息传递的无线电收发信电台。随着通信技术的高速发展以及5G通信时代的到来,基站的收发通道与过去相比增加了数十倍之多,各通道对应的控制电路及检测电路也随之增多,使得基站内部设备结构冗杂,空间利用率较低。Base Station (Base Station) refers to a radio transceiver station that transmits information with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. With the rapid development of communication technology and the arrival of the 5G communication era, the number of transmission and reception channels of the base station has increased by dozens of times compared with the past, and the corresponding control circuits and detection circuits of each channel have also increased, making the internal equipment structure of the base station complicated. , the space utilization rate is low.
因此,如何简化基站的电路结构,提高基站的空间利用率,成为本领域亟待解决的技术问题。Therefore, how to simplify the circuit structure of the base station and improve the space utilization rate of the base station has become an urgent technical problem to be solved in the art.
发明内容SUMMARY OF THE INVENTION
作为本公开的第一个方面,提供一种网络设备的驻波检测方法,包括:检测反射信号(REV)的功率电平;检测前向信号(FWD)的功率电平;以及根据检测到的所述反射信号的功率电平和所述前向信号的功率电平得到所述网络设备的多个发射通道对应的驻波比,其中,所述检测反射信号的功率电平的步骤包括:通过所述网络设备的所述多个发射通道发出驻波检测信号;以及,通过所述网络设备的多个接收通道获取所述反射信号的功率电平;所述检测前向信号的功率电平的步骤包括:控制所述网络设备的多个发射通道发出驻波检测信号,以及,控制所述多个接收通道中的一个接收通道通过天线校准网络获取所述前向信号的功率电平。As a first aspect of the present disclosure, there is provided a standing wave detection method of a network device, comprising: detecting a power level of a reflected signal (REV); detecting a power level of a forward signal (FWD); The power level of the reflected signal and the power level of the forward signal obtain the standing wave ratio corresponding to the multiple transmission channels of the network device, wherein the step of detecting the power level of the reflected signal includes: The multiple transmission channels of the network device send out standing wave detection signals; and the power level of the reflected signal is acquired through the multiple reception channels of the network device; the step of detecting the power level of the forward signal The method includes: controlling multiple transmit channels of the network device to send standing wave detection signals, and controlling one of the multiple receive channels to obtain the power level of the forward signal through an antenna calibration network.
作为本公开的第二个方面,提供一种网络设备的驻波检测装置,包括:存储介质,所述存储介质中存储有可执行程序;一个或多个处理器,所述一个或多个 处理器能够调用所述可执行程序,以实现前面所述的驻波检测方法。As a second aspect of the present disclosure, there is provided a standing wave detection apparatus for a network device, including: a storage medium, in which an executable program is stored; one or more processors, the one or more processing The controller can call the executable program to implement the standing wave detection method described above.
作为本公开的第三个方面,提供一种网络设备,包括天线校准网络、驻波检测装置、多个发射通道和多个接收通道,其中,所述天线校准网络与多个所述接收通道连接,所述驻波检测装置为前面所述的驻波检测装置。As a third aspect of the present disclosure, a network device is provided, including an antenna calibration network, a standing wave detection device, a plurality of transmission channels and a plurality of reception channels, wherein the antenna calibration network is connected to the plurality of reception channels , the standing wave detection device is the aforementioned standing wave detection device.
附图是用来提供对本公开的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本公开,但并不构成对本公开的限制。在附图中:The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and together with the following detailed description, are used to explain the present disclosure, but not to limit the present disclosure. In the attached image:
图1是相关技术中一条收、发通道与检测通道之间的连接关系示意图;1 is a schematic diagram of the connection relationship between a receiving and sending channel and a detection channel in the related art;
图2是相关技术中多条收、发通道与检测通道之间的连接关系示意图;2 is a schematic diagram of the connection relationship between a plurality of receiving and sending channels and detection channels in the related art;
图3是根据本公开的实施例的通过收、发通道和天线校准网络实现驻波检测的原理示意图;3 is a schematic diagram of the principle of implementing standing wave detection by receiving and transmitting channels and an antenna calibration network according to an embodiment of the present disclosure;
图4是根据本公开的实施例的通过收、发通道和天线校准网络实现驻波检测的另一原理示意图。FIG. 4 is a schematic diagram of another principle of implementing standing wave detection through receiving and transmitting channels and an antenna calibration network according to an embodiment of the present disclosure.
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本公开,并不用于限制本公开。The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.
为实时检测基站性能,常需要对基站进行驻波检测,即,通过基站的发射通道发送连续的正弦波(即驻波检测信号)或单音信号,接收反射波,并根据前向信号FWD和反射信号REV进行处理分析,以获得驻波比等信息,进而得到天馈线缆的连接情况和基站的故障情况。In order to detect the performance of the base station in real time, it is often necessary to perform standing wave detection on the base station, that is, send a continuous sine wave (ie standing wave detection signal) or a single tone signal through the transmission channel of the base station, receive the reflected wave, and according to the forward signal FWD and The reflected signal REV is processed and analyzed to obtain information such as the standing wave ratio, and then the connection situation of the antenna-feeder cable and the fault situation of the base station.
在现有的基站驻波检测方案中,驻波检测信号由发射通道TX发出,而前向信号FWD和反射信号REV均通过单独的检测通道ORX获取。如图1所示,检测通道ORX通过前向信号获取装置获取前向信号FWD,接收通道RX1接收的反射信号REV通过开关转至检测通道ORX,检测通道ORX通过开关切换轮流接收反射信号REV和前向信号FWD。In the existing base station standing wave detection scheme, the standing wave detection signal is sent by the transmit channel TX, while the forward signal FWD and the reflected signal REV are both acquired by a separate detection channel ORX. As shown in Figure 1, the detection channel ORX obtains the forward signal FWD through the forward signal acquisition device, the reflected signal REV received by the receiving channel RX1 is transferred to the detection channel ORX through the switch, and the detection channel ORX receives the reflected signal REV and the forward signal in turn through the switch. to signal FWD.
在相关技术中,检测通道ORX用于检测的通道数量通常较少,然而,随着5G通信时代的到来,基站的收发通道数量与之前相比产生了极大的增长。如图2所示,若仍采用现有的驻波检测方案,则与检测通道ORX对应的反射信号REV检测电路和开关将占用巨大的空间,且检测所需时间较长,检测效率低下。In the related art, the number of detection channels used by the detection channel ORX is usually small. However, with the advent of the 5G communication era, the number of transmission and reception channels of the base station has greatly increased compared with the previous ones. As shown in FIG. 2 , if the existing standing wave detection scheme is still used, the reflected signal REV detection circuit and switch corresponding to the detection channel ORX will occupy a huge space, and the detection time will be long and the detection efficiency will be low.
为解决上述技术问题,作为本公开的一个方面,提供一种网络设备(如,基站)的驻波检测方法,包括以下步骤S1至S3:In order to solve the above technical problems, as an aspect of the present disclosure, a method for detecting standing waves of a network device (eg, a base station) is provided, including the following steps S1 to S3:
在步骤S1中,检测反射信号REV的功率电平;In step S1, the power level of the reflected signal REV is detected;
在步骤S2中,检测前向信号FWD的功率电平;In step S2, the power level of the forward signal FWD is detected;
在步骤S3中,根据检测到的所述反射信号REV的功率电平和所述前向信号 FWD的功率电平得到所述网络设备的多个发射通道TX对应的驻波比。In step S3, according to the detected power level of the reflected signal REV and the power level of the forward signal FWD, the standing wave ratios corresponding to the multiple transmission channels TX of the network device are obtained.
其中,检测反射信号REV的功率电平的步骤S1包括以下步骤S11至S12:Wherein, the step S1 of detecting the power level of the reflected signal REV includes the following steps S11 to S12:
在步骤S11中,通过所述网络设备的多个发射通道TX发出驻波检测信号;以及,In step S11, a standing wave detection signal is sent through a plurality of transmission channels TX of the network device; and,
在步骤S12中,通过所述网络设备的多个接收通道RX获取所述反射信号REV的功率电平;In step S12, obtain the power level of the reflected signal REV through multiple receiving channels RX of the network device;
检测前向信号FWD的功率电平的步骤S2包括:The step S2 of detecting the power level of the forward signal FWD includes:
在步骤S21中,控制所述网络设备的多个发射通道TX发出驻波检测信号;以及,In step S21, control multiple transmission channels TX of the network device to send standing wave detection signals; and,
在步骤S22中,控制一个所述接收通道RX通过所述网络设备的天线校准网络(AC网络)获取所述前向信号FWD的功率电平。In step S22, one of the receiving channels RX is controlled to obtain the power level of the forward signal FWD through the antenna calibration network (AC network) of the network device.
如图3所示为利用本公开提供的驻波检测方法检测网络设备时网络设备的一个射频接口对应的电路接法。网络设备包括多个发射通道TX和多个接收通道RX,对于每一射频接口,均有一条发射通道TX和一条接收通道RX与之对应。FIG. 3 shows a circuit connection method corresponding to a radio frequency interface of the network device when the standing wave detection method provided by the present disclosure is used to detect the network device. The network device includes multiple transmit channels TX and multiple receive channels RX. For each radio frequency interface, there is one transmit channel TX and one receive channel RX corresponding to it.
在本公开中,接收通道RX在完成正常的信号接收工作以外,还复用于获取驻波检测中的反射信号REV的功率电平,天线校准网络除正常校准功能外,还复用于获取每个射频接口对应的前向信号FWD的功率电平。即,本公开中通过复用接收通道RX和天线校准网络,代替了相关技术中利用检测通道ORX实现驻波检测的方案,省去了网络设备(如,基站)中的检测通道ORX以及检测通道ORX的信号获取装置、开关装置等相应的电路结构,从而简化了网络设备的设备结构,提高了网络设备空间的利用率,降低了网络设备的布线面积和成本。In the present disclosure, the receiving channel RX is also multiplexed to obtain the power level of the reflected signal REV in the standing wave detection in addition to the normal signal receiving work, and the antenna calibration network is also multiplexed to obtain each The power level of the forward signal FWD corresponding to each radio frequency interface. That is, in the present disclosure, by multiplexing the receiving channel RX and the antenna calibration network, the solution of using the detection channel ORX to realize the standing wave detection in the related art is replaced, and the detection channel ORX and the detection channel in the network device (eg, the base station) are omitted. The corresponding circuit structure of the signal acquisition device and switching device of the ORX simplifies the device structure of the network equipment, improves the utilization rate of the network equipment space, and reduces the wiring area and cost of the network equipment.
并且,如图4所示,由于接收通道RX与发射通道TX数量对应,多条接收通道RX可以同时接收多个射频接口对应的反射信号REV的功率电平,不必通过图2所示的开关结构逐个切换通道,从而提高了网络设备驻波检测效率,能够实现网络设备(如,5G基站)的高效检测。Moreover, as shown in FIG. 4 , since the number of receiving channels RX corresponds to the number of transmitting channels TX, multiple receiving channels RX can simultaneously receive the power levels of the reflected signals REV corresponding to multiple radio frequency interfaces without passing the switch structure shown in FIG. 2 . The channels are switched one by one, thereby improving the standing wave detection efficiency of network equipment and enabling efficient detection of network equipment (eg, 5G base stations).
本公开实施例对接收通道RX和发射通道TX的数量不作具体限定,例如,如图4所示,所述网络设备可以包括64个接收通道RX(RX1至RX64)和64个发射通道TX(TX1至TX64),对应于64个射频接口(射频接口1至射频接口64)。The embodiments of the present disclosure do not specifically limit the number of receive channels RX and transmit channels TX. For example, as shown in FIG. 4 , the network device may include 64 receive channels RX (RX1 to RX64) and 64 transmit channels TX (TX1) to TX64), corresponding to 64 RF interfaces (RF interface 1 to RF interface 64).
需要说明的是,天线校准网络是用于对无线电路径之间的相位和幅度差进行补偿的n路合一校准网络,本公开实施例对天线校准网络如何获取前向信号FWD的功率电平不作具体限定,例如,如图3所示,天线校准网络通过多个前向信号获取装置23与每个射频接口对应的通道连接。如图4所示,该前向信号获取装置23可以是耦合器。It should be noted that the antenna calibration network is an n-in-one calibration network for compensating for the phase and amplitude difference between radio paths, and the embodiments of the present disclosure do not make any difference to how the antenna calibration network obtains the power level of the forward signal FWD. Specifically defined, for example, as shown in FIG. 3 , the antenna calibration network is connected to a channel corresponding to each radio frequency interface through a plurality of forward signal acquisition devices 23 . As shown in FIG. 4 , the forward signal acquisition device 23 may be a coupler.
本公开实施例对所述发射通道TX和所述接收通道RX如何与所述网络设备的射频接口连接不作具体限定。例如,在一些实施方式中,如图3、图4所示, 所述网络设备还包括多个环形器30,所述发射通道TX和所述接收通道RX均可通过所述环形器30与所述网络设备的射频接口连接。所述发射通道TX发出的驻波检测信号能够通过所述环形器30单向传输至所述网络设备的射频接口,所述网络设备的射频接口返回的反射信号REV的功率电平能够通过所述环形器30单向传输至所述发射通道TX。The embodiments of the present disclosure do not specifically limit how the transmit channel TX and the receive channel RX are connected to the radio frequency interface of the network device. For example, in some embodiments, as shown in FIG. 3 and FIG. 4 , the network device further includes a plurality of circulators 30 , and both the transmit channel TX and the receive channel RX can communicate with all the circulators 30 through the circulators 30 . Connect the radio frequency interface of the network equipment. The standing wave detection signal sent by the transmission channel TX can be unidirectionally transmitted to the radio frequency interface of the network device through the circulator 30, and the power level of the reflected signal REV returned by the radio frequency interface of the network device can pass through the radio frequency interface of the network device. The circulator 30 transmits unidirectionally to the transmit channel TX.
如图3、图4所示,在一个可选的实施方式中,一个接收通道RX1可-通过第一选择开关11选择性地与所述天线校准网络或者所述网络设备的射频接口导通。相应地,检测前向信号FWD的功率电平的步骤S1还包括在发出驻波检测信号之前进行的:控制所述一个接收通道RX1与天线校准网络导通(即,控制第一选择开关11将接收通道RX1与天线校准网络导通);检测反射信号REV的功率电平的步骤S2还包括在发出驻波检测信号之前进行的:控制多个所述接收通道RX通过相应的环形器300与相应的射频接口导通(即,控制接收通道RX1至RX64对应的选择开关(见图4),将接收通道RX1至RX64与对应的射频接口导通,以实现所有接收通道RX均与对应的射频接口导通)。As shown in FIG. 3 and FIG. 4 , in an optional implementation manner, a receiving channel RX1 can selectively conduct with the antenna calibration network or the radio frequency interface of the network device through the first selection switch 11 . Correspondingly, the step S1 of detecting the power level of the forward signal FWD further includes, before sending the standing wave detection signal: controlling the one receiving channel RX1 to conduct with the antenna calibration network (that is, controlling the first selection switch 11 to The receiving channel RX1 is connected to the antenna calibration network); the step S2 of detecting the power level of the reflected signal REV also includes, before sending the standing wave detection signal: controlling a plurality of the receiving channels RX to pass through the corresponding circulators 300 and corresponding The radio frequency interface is turned on (that is, control the selection switches corresponding to the receiving channels RX1 to RX64 (see Figure 4), and connect the receiving channels RX1 to RX64 with the corresponding radio frequency interface, so as to realize that all the receiving channels RX are connected to the corresponding radio frequency interface turn on).
替代性地,在另一个可选的实施方式中,检测反射信号REV的功率电平的步骤S2还包括在发出驻波检测信号之前进行的:控制多个所述接收通道RX与所述天线校准网络导通(即,控制第一选择开关11将对应的接收通道RX与所述天线校准网络导通,以实现所有接收通道RX均与所述天线校准网络导通)。检测FWD的功率电平的步骤S1还包括在发出驻波检测信号之前进行的:控制一个接收通道RX(即与第一选择开关11连接的接收通道RX)通过所述环形器30与所述网络设备的射频接口导通。Alternatively, in another optional embodiment, the step S2 of detecting the power level of the reflected signal REV further includes, before sending the standing wave detection signal: controlling a plurality of the receiving channels RX to calibrate with the antenna The network is turned on (ie, the first selection switch 11 is controlled to connect the corresponding receiving channel RX to the antenna calibration network, so that all the receiving channels RX are connected to the antenna calibration network). The step S1 of detecting the power level of the FWD also includes, before sending the standing wave detection signal: controlling a receiving channel RX (that is, the receiving channel RX connected to the first selection switch 11 ) to communicate with the network through the circulator 30 The RF interface of the device is turned on.
本公开实施例对如何得到多个发射通道TX(或多个射频接口)对应的驻波比不作具体限定。例如,在一些实施方式中,得到所述网络设备的多个发射通道TX对应的驻波比的步骤S3可包括以下步骤S31至S33:The embodiment of the present disclosure does not specifically limit how to obtain the standing wave ratios corresponding to the multiple transmit channels TX (or multiple radio frequency interfaces). For example, in some embodiments, the step S3 of obtaining the standing wave ratios corresponding to the multiple transmission channels TX of the network device may include the following steps S31 to S33:
在步骤S31中,通过前向信号FWD的功率得到前向检测功率线性值,通过反射信号REV的功率得到反向检测功率线性值。In step S31, the forward detection power linearity value is obtained from the power of the forward signal FWD, and the reverse detection power linearity value is obtained from the power of the reflected signal REV.
在步骤S32中,根据所述前向检测功率线性值和所述反向检测功率线性值得到反射系数。In step S32, a reflection coefficient is obtained according to the linear value of the forward detection power and the linear value of the reverse detection power.
在步骤S33中,根据所述反射系数得到所述网络设备的驻波比。In step S33, the standing wave ratio of the network device is obtained according to the reflection coefficient.
其中,在步骤S31中,所述前向信号FWD的功率由所述天线校准网络的接收通道RX增益与所述检测到的前向信号FWD的功率电平得到,所述反射信号REV的功率由各个接收通道的增益所述天线校准网络的发射通道TX增益与所述检测到的反射信号REV的功率电平得到,具体地:Wherein, in step S31, the power of the forward signal FWD is obtained from the receiving channel RX gain of the antenna calibration network and the power level of the detected forward signal FWD, and the power of the reflected signal REV is obtained by The gain of each receive channel is obtained from the transmit channel TX gain of the antenna calibration network and the power level of the detected reflected signal REV, specifically:
前向信号FWD的功率可由计算式P
f=P
acrx(i)-G
acrx得到,其中P
acrx(i)为检测到的FWD的功率电平,G
acrx为所述接收通道RX的增益,i表示通道编号。
The power of the forward signal FWD can be obtained by the calculation formula P f =P acrx (i)-G acrx , where P acrx (i) is the power level of the detected FWD, G acrx is the gain of the receiving channel RX, i Indicates the channel number.
反射信号REV的功率由计算式P
r=P
rx’(i)-G
rx(i)得到,其中P
rx’(i)为所述检测到的反射信号REV的功率电平,G
rx(i)为所述反射信号REV的接收通道RX增益。
The power of the reflected signal REV is obtained by the calculation formula P r =P rx '(i)-G rx (i), where P rx '(i) is the detected power level of the reflected signal REV, and G rx (i ) is the receive channel RX gain of the reflected signal REV.
在一些实施方式中,所述驻波检测方法还包括获取驻波信号电平,以对所述 驻波检测信号进行校准的步骤S0,包括以下步骤S01和S02:In some embodiments, the standing wave detection method further includes the step S0 of acquiring the standing wave signal level to calibrate the standing wave detection signal, including the following steps S01 and S02:
在步骤S01中,控制所述网络设备的一个发射通道TX发出驻波检测信号(功率记为P
actx)。
In step S01, a transmission channel TX of the network device is controlled to send out a standing wave detection signal (the power is denoted as P actx ).
在步骤S02中,控制所述网络设备的多个接收通道RX通过所述天线校准网络获取驻波信号电平(功率记为数组P
rx(i))。
In step S02, multiple receiving channels RX of the network device are controlled to obtain the standing wave signal level (the power is recorded as an array P rx (i)) through the antenna calibration network.
P(i)和P
actx均用于校准所述驻波检测信号,反射信号REV的接收通道RX增益G
rx(i)由计算式G
rx(i)=P
rx(i)-(P
actx+G
actx)得到,其中,P
rx(i)为多个接收通道通过所述天线校准网络接收检测到的所述驻波信号电平的功率,P
actx为所述发射通道发出驻波检测信号的功率,G
actx为所述天线校准网络的发射通道增益。
Both P(i) and P actx are used to calibrate the standing wave detection signal, and the receiving channel RX gain G rx (i) of the reflected signal REV is calculated by the formula G rx (i)=P rx (i)-(P actx + G actx ) is obtained, wherein P rx (i) is the power of the standing wave signal level detected by the multiple receiving channels through the antenna calibration network, and P actx is the power of the standing wave detection signal sent by the transmitting channel power, G actx is the transmit channel gain of the antenna calibration network.
所述天线校准网络的发射通道TX增益G
actx以及所述天线校准网络的接收通道RX增益G
acrx均在生产测试阶段测得。
The transmit channel TX gain G actx of the antenna calibration network and the receive channel RX gain G acrx of the antenna calibration network are both measured in the production testing stage.
可选地,在步骤S31中,计算前向检测功率线性值和反向检测功率线性值的计算式如下:Optionally, in step S31, the calculation formula for calculating the linear value of the forward detection power and the linear value of the reverse detection power is as follows:
步骤S32中,计算反射系数的计算式如下:In step S32, the calculation formula for calculating the reflection coefficient is as follows:
步骤S33中,计算所述网络设备的驻波比的计算式如下:In step S33, the formula for calculating the standing wave ratio of the network device is as follows:
将前面的计算式代入驻波比计算式中可得:Substitute the previous formula into the standing wave ratio formula to get:
P
r-P
f=P
rx(i)-G
rx(i)-[P
acrx(i)-G
acrx],需要说明的是,在前面所有计算式中,i表示通道编号。例如,当网络设备包括64个射频接口以及对应的64个接收通道RX和64个发射通道TX时,i取1至64,最终能够计算得到64个通道对应的驻波比VSWR的值。
P r -P f =P rx (i)-G rx (i)-[P acrx (i)-G acrx ], it should be noted that, in all the preceding calculation formulas, i represents the channel number. For example, when the network device includes 64 radio frequency interfaces and corresponding 64 receiving channels RX and 64 transmitting channels TX, i can take 1 to 64, and finally the value of the standing wave ratio VSWR corresponding to the 64 channels can be calculated.
作为本公开的第二个方面,还提供一种网络设备的驻波检测装置,包括:存储介质,所述存储介质中存储有可执行程序;一个或多个处理器,所述一个或多 个处理器能够调用所述可执行程序,以实现前面实施例中所述的驻波检测方法。从而,通过复用接收通道RX和天线校准网络,代替相关技术中利用检测通道ORX实现驻波检测的方案,在简化网络设备设备结构、降低网络设备布线面积和成本的同时,提高了网络设备的驻波检测效率。As a second aspect of the present disclosure, there is also provided a standing wave detection apparatus for a network device, including: a storage medium, in which an executable program is stored; one or more processors, the one or more The processor can call the executable program to implement the standing wave detection method described in the previous embodiment. Therefore, by multiplexing the receiving channel RX and the antenna calibration network, instead of using the detection channel ORX to realize the standing wave detection scheme in the related art, the structure of the network equipment is simplified, the wiring area and cost of the network equipment are reduced, and the performance of the network equipment is improved. Standing wave detection efficiency.
作为本公开的第三个方面,还提供一种网络设备,包括天线校准网络、驻波检测装置、多个发射通道TX和多个接收通道RX,所述天线校准网络与多个所述接收通道连接,所述驻波检测装置为前面实施例中所述的驻波检测装置。As a third aspect of the present disclosure, a network device is also provided, including an antenna calibration network, a standing wave detection device, multiple transmit channels TX and multiple receive channels RX, the antenna calibration network and the multiple receive channels connected, the standing wave detection device is the standing wave detection device described in the previous embodiment.
在本公开提供的网络设备中,接收通道RX在完成正常的信号接收工作以外,还复用于获取驻波检测中的反射信号REV的功率电平,天线校准网络除正常校准功能外,还复用于获取每个射频接口对应的前向信号FWD的功率电平。即,本公开中通过复用接收通道RX和天线校准网络,代替了相关技术中利用检测通道ORX实现驻波检测的方案,省去了网络设备中的检测通道ORX以及检测通道ORX用于由发射通道TX和接收通道RX获取信号的信号获取装置、开关装置等相应的电路结构,从而简化了网络设备的设备结构,提高了网络设备空间的利用率,降低了网络设备的布线面积和成本。In the network device provided by the present disclosure, the receiving channel RX is also used to obtain the power level of the reflected signal REV in the standing wave detection in addition to the normal signal receiving work. In addition to the normal calibration function, the antenna calibration network also Used to obtain the power level of the forward signal FWD corresponding to each radio interface. That is, in the present disclosure, by multiplexing the receiving channel RX and the antenna calibration network, the solution of using the detection channel ORX to realize standing wave detection in the related art is replaced, and the detection channel ORX in the network device and the detection channel ORX used by the transmitter are omitted. Corresponding circuit structures such as signal acquisition device and switch device for channel TX and receiving channel RX to acquire signals, thereby simplifying the device structure of network equipment, improving the utilization rate of network equipment space, and reducing the wiring area and cost of network equipment.
并且,由于接收通道RX与发射通道TX数量对应,多条接收通道RX可以同时接收多个射频接口对应的反射信号REV的功率电平,提高了网络设备驻波检测效率,能够实现网络设备的高效检测。In addition, since the number of receiving channels RX corresponds to the number of transmitting channels TX, multiple receiving channels RX can simultaneously receive the power level of the reflected signal REV corresponding to multiple radio frequency interfaces, which improves the standing wave detection efficiency of network equipment and can achieve high efficiency of network equipment. detection.
本公开实施例对所述网络设备的种类不作具体限定,例如,所述网络设备可以是基站(如,5G基站)。本公开实施例对天线校准网络如何获取前向信号FWD的功率电平不作具体限定。例如,如图3所示,天线校准网络通过多个前向信号获取装置23与每个射频接口对应的通道连接。如图4所示,该前向信号获取装置23可以是耦合器。This embodiment of the present disclosure does not specifically limit the type of the network device, for example, the network device may be a base station (eg, a 5G base station). This embodiment of the present disclosure does not specifically limit how the antenna calibration network acquires the power level of the forward signal FWD. For example, as shown in FIG. 3 , the antenna calibration network is connected to a channel corresponding to each radio frequency interface through a plurality of forward signal acquisition devices 23 . As shown in FIG. 4 , the forward signal acquisition device 23 may be a coupler.
本公开实施例对所述发射通道TX和所述接收通道RX如何与所述网络设备的射频接口连接不作具体限定。例如,如图3、图4所示,所述网络设备还包括第一选择开关,所述第一选择开关11与一个接收通道RX连接,该接收通道RX通过第一选择开关11选择性地与所述天线校准网络或者所述网络设备的射频接口连接。所述网络设备还包括多个环形器30,每个所述发射通道TX和每个所述接收通道RX均通过对应的环形器30与所述网络设备的射频接口连接。所述发射通道TX发出的驻波检测信号能够通过所述环形器30单向传输至所述网络设备的射频接口,所述网络设备的射频接口返回的反射信号REV能够通过所述环形器30单向传输至所述发射通道TX。The embodiments of the present disclosure do not specifically limit how the transmit channel TX and the receive channel RX are connected to the radio frequency interface of the network device. For example, as shown in FIG. 3 and FIG. 4 , the network device further includes a first selection switch, the first selection switch 11 is connected to a receiving channel RX, and the receiving channel RX is selectively connected to the receiving channel RX through the first selection switch 11 . The antenna calibration network or the radio frequency interface of the network device is connected. The network device further includes a plurality of circulators 30 , and each of the transmit channels TX and each of the receive channels RX is connected to the radio frequency interface of the network device through the corresponding circulator 30 . The standing wave detection signal sent by the transmission channel TX can be unidirectionally transmitted to the radio frequency interface of the network device through the circulator 30 , and the reflected signal REV returned by the radio frequency interface of the network device can be unidirectionally transmitted through the circulator 30 . to the transmit channel TX.
在一些可选的实施方式中,为进一步提高驻波检测信号和反射信号REV的信号质量,如图3所示,所述网络设备还包括多个发射装置21和多个接收装置22,每个所述发射通道TX通过所述发射装置21与所述环形器30连接,每个所述接收通道RX通过所述接收装置22与所述环形器30连接,从而通过发射装置 21和接收装置22稳定发射通道TX和接收通道RX的信号质量。本公开实施例对该发射装置21和接收装置22的种类不作具体限定,例如,如图4所示,该发射装置21可以为功率放大器(PA,Power Amplifier),该接收装置22可以为低噪声放大器(LNA)或者开关低噪声放大器(DSLNA)。In some optional embodiments, in order to further improve the signal quality of the standing wave detection signal and the reflected signal REV, as shown in FIG. 3 , the network device further includes a plurality of transmitting devices 21 and a plurality of receiving devices 22, each of which The transmitting channel TX is connected to the circulator 30 through the transmitting device 21 , and each receiving channel RX is connected to the circulator 30 through the receiving device 22 , so as to be stabilized by the transmitting device 21 and the receiving device 22 Signal quality of transmit channel TX and receive channel RX. The embodiments of the present disclosure do not specifically limit the types of the transmitting device 21 and the receiving device 22. For example, as shown in FIG. 4, the transmitting device 21 may be a power amplifier (PA, Power Amplifier), and the receiving device 22 may be a low noise Amplifier (LNA) or Switching Low Noise Amplifier (DSLNA).
本公开实施例对网络设备的其他电路结构不作具体限定。例如,在一些可选的实施方式中,如图3、图4所示,为实现复用天线校准网络(AC网络),所述网络设备还包括第二选择开关12和第三选择开关13,所述发射通道TX通过第二选择开关12选择性地与所述环形器30或者所述第三选择开关13连接,所述天线校准网络通过所述第三选择开关13选择性地与所述发射通道TX或者所述接收通道RX连接,从而通过切换开关使天线校准网络在不同时段分别完成天线校准任务和网络设备驻波检测任务。The embodiments of the present disclosure do not specifically limit other circuit structures of the network device. For example, in some optional embodiments, as shown in FIG. 3 and FIG. 4 , in order to realize a multiplexed antenna calibration network (AC network), the network device further includes a second selection switch 12 and a third selection switch 13, The transmission channel TX is selectively connected to the circulator 30 or the third selection switch 13 through the second selection switch 12 , and the antenna calibration network is selectively connected to the transmission through the third selection switch 13 . The channel TX or the receiving channel RX is connected, so that the antenna calibration network can respectively complete the task of antenna calibration and the task of network equipment standing wave detection in different time periods through the switch.
本公开提供的网络设备通过复用接收通道RX和天线校准网络,代替了相关技术中利用检测通道ORX实现驻波检测的方案,省去了网络设备中的检测通道ORX以及信号获取装置、开关装置等相应的电路结构,从而简化了网络设备的设备结构,提高了网络设备空间的利用率,降低了网络设备的布线面积和成本。The network device provided by the present disclosure replaces the solution of using the detection channel ORX to realize standing wave detection in the related art by multiplexing the receiving channel RX and the antenna calibration network, and omits the detection channel ORX, the signal acquisition device, and the switch device in the network device. and other corresponding circuit structures, thereby simplifying the equipment structure of the network equipment, improving the utilization rate of the network equipment space, and reducing the wiring area and cost of the network equipment.
可以理解的是,以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式,然而本公开并不局限于此。对于本领域内的普通技术人员而言,在不脱离本公开的精神和实质的情况下,可以做出各种变型和改进,这些变型和改进也视为本公开的保护范围。It should be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also regarded as the protection scope of the present disclosure.
Claims (10)
- 一种网络设备的驻波检测方法,包括:A standing wave detection method for network equipment, comprising:检测反射信号的功率电平;Detect the power level of the reflected signal;检测前向信号的功率电平;以及detecting the power level of the forward signal; and根据检测到的所述反射信号的功率电平和所述前向信号的功率电平得到所述网络设备的多个发射通道对应的驻波比,其中,According to the detected power level of the reflected signal and the power level of the forward signal, the standing wave ratio corresponding to the multiple transmission channels of the network device is obtained, wherein,所述检测反射信号的功率电平的步骤包括:通过所述网络设备的所述多个发射通道发出驻波检测信号;以及,通过所述网络设备的多个接收通道获取所述反射信号的功率电平;The step of detecting the power level of the reflected signal includes: sending a standing wave detection signal through the multiple transmit channels of the network device; and acquiring the power of the reflected signal through multiple receive channels of the network device level;所述检测前向信号的功率电平的步骤包括:控制所述网络设备的所述多个发射通道发出驻波检测信号;以及,控制一个所述接收通道通过天线校准网络获取所述前向信号的功率电平。The step of detecting the power level of the forward signal includes: controlling the plurality of transmitting channels of the network device to send out standing wave detection signals; and controlling one of the receiving channels to obtain the forward signal through an antenna calibration network power level.
- 根据权利要求1所述的驻波检测方法,其中,The standing wave detection method according to claim 1, wherein,所述检测反射信号的功率电平的步骤还包括在发出驻波检测信号之前进行的:The step of detecting the power level of the reflected signal further includes, before sending the standing wave detection signal:控制所述多个接收通道通过环形器与所述网络设备的相应射频接口导通;controlling the plurality of receiving channels to conduct with the corresponding radio frequency interface of the network device through the circulator;所述检测前向信号的功率电平的步骤还包括在发出驻波检测信号之前进行的:The step of detecting the power level of the forward signal further includes, before sending the standing wave detection signal:控制所述一个接收通道与所述天线校准网络导通。The one receiving channel is controlled to be connected to the antenna calibration network.
- 根据权利要求1或2所述的驻波检测方法,其中,所述得到所述网络设备的多个发射通道对应的驻波比的步骤包括:The standing wave detection method according to claim 1 or 2, wherein the step of obtaining the standing wave ratios corresponding to multiple transmission channels of the network device comprises:通过所述前向信号的功率得到前向检测功率线性值,通过所述反射信号的功率得到反向检测功率线性值;The forward detection power linear value is obtained by the power of the forward signal, and the reverse detection power linear value is obtained by the power of the reflected signal;根据所述前向检测功率线性值和所述反向检测功率线性值得到反射系数;obtaining a reflection coefficient according to the linear value of the forward detection power and the linear value of the reverse detection power;根据所述反射系数得到所述网络设备的驻波比;obtaining the standing wave ratio of the network device according to the reflection coefficient;其中,所述前向信号的功率由所述天线校准网络的接收通道增益与检测到的所述前向信号的功率电平得到,所述反射信号的功率由各个接收通道的增益与检测到的所述反射信号的功率电平得到。The power of the forward signal is obtained from the gain of the receiving channel of the antenna calibration network and the detected power level of the forward signal, and the power of the reflected signal is obtained from the gain of each receiving channel and the detected power level. The power level of the reflected signal is obtained.
- 根据权利要求3所述的驻波检测方法,其中,所述前向信号的功率由计算式P f=P acrx(i)-G acrx得到,其中P acrx(i)为检测到的前向信号的功率电平,G acrx为所述天线校准网络的接收通道增益,i表示通道编号; The standing wave detection method according to claim 3, wherein the power of the forward signal is obtained by the calculation formula P f =P acrx (i)-G acrx , wherein P acrx (i) is the detected forward signal The power level of , G acrx is the receiving channel gain of the antenna calibration network, i represents the channel number;所述反射信号的功率由计算式P r=P rx’(i)-G rx(i)得到,其中P rx’(i)为检测到的反射信号的功率电平,G rx(i)为所述接收通道的增益。 The power of the reflected signal is obtained by the calculation formula P r =P rx '(i)-G rx (i), where P rx '(i) is the detected power level of the reflected signal, and G rx (i) is the gain of the receive channel.
- 根据权利要求4所述的驻波检测方法,其中,所述驻波检测方法还包括获取驻波信号电平的步骤,包括:The standing wave detection method according to claim 4, wherein the standing wave detection method further comprises the step of acquiring the standing wave signal level, comprising:控制所述网络设备的一个发射通道发出驻波校准信号;Controlling a transmission channel of the network device to send out a standing wave calibration signal;控制所述网络设备的多个接收通道通过所述天线校准网络获取驻波信号电平;Controlling multiple receiving channels of the network device to obtain standing wave signal levels through the antenna calibration network;所述反射信号的接收通道增益G rx(i)由计算式G rx(i)=P rx(i)-(P actx+G actx)得到,其中,P rx(i)为所述驻波信号电平的功率,P actx为所述发射通道发出驻波检测信号的功率,G actx为所述天线校准网络的发射通道增益。 The receiving channel gain G rx (i) of the reflected signal is obtained by the calculation formula G rx (i)=P rx (i)-(P actx +G actx ), where P rx (i) is the standing wave signal level power, P actx is the power of the standing wave detection signal sent by the transmit channel, and G actx is the transmit channel gain of the antenna calibration network.
- 一种网络设备的驻波检测装置,包括:A standing wave detection device for network equipment, comprising:存储介质,所述存储介质中存储有可执行程序;a storage medium, in which an executable program is stored;一个或多个处理器,所述一个或多个处理器能够调用所述可执行程序,以实现权利要求1至5中任意一项所述的驻波检测方法。One or more processors, the one or more processors can call the executable program to implement the standing wave detection method according to any one of claims 1 to 5 .
- 一种网络设备,包括天线校准网络、驻波检测装置、多个发射通道和多个接收通道,其中,所述天线校准网络与多个所述接收通道连接,所述驻波检测装置为权利要求6所述的驻波检测装置。A network device, comprising an antenna calibration network, a standing wave detection device, a plurality of transmission channels and a plurality of reception channels, wherein the antenna calibration network is connected with a plurality of the reception channels, and the standing wave detection device is in the claim The standing wave detection device described in 6.
- 根据权利要求7所述的网络设备,其中,所述网络设备还包括第一选择开关,所述第一选择开关与所述一个接收通道连接,该接收通道通过所述第一选择开关选择性地与所述天线校准网络或者所述网络设备的相应的射频接口连接;所述网络设备还包括多个环形器,每个所述发射通道和每个所述接收通道均通过对应的环形器与所述网络设备的相应的射频接口连接。The network device of claim 7, wherein the network device further comprises a first selection switch, the first selection switch is connected to the one receiving channel, the receiving channel is selectively selected by the first selection switch connected with the antenna calibration network or the corresponding radio frequency interface of the network device; the network device further includes a plurality of circulators, each of the transmitting channels and each of the receiving channels is connected to the corresponding radio frequency through the corresponding circulator Connect to the corresponding radio frequency interface of the network device.
- 根据权利要求8所述的网络设备,其中,所述网络设备还包括多个发射装置和多个接收装置,每个所述发射通道通过所述发射装置与所述环形器连接,每个所述接收通道通过所述接收装置与所述环形器连接。The network device according to claim 8, wherein the network device further comprises a plurality of transmitting devices and a plurality of receiving devices, each of the transmitting channels is connected to the circulator through the transmitting device, and each of the transmitting devices is connected to the circulator. The receiving channel is connected to the circulator through the receiving device.
- 根据权利要求9所述的网络设备,其中,所述发射装置为功率放大器,所述接收装置为低噪声放大器。The network device according to claim 9, wherein the transmitting device is a power amplifier, and the receiving device is a low noise amplifier.
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