WO2023273894A1 - 驻波检测方法、装置、射频设备及存储介质 - Google Patents

驻波检测方法、装置、射频设备及存储介质 Download PDF

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WO2023273894A1
WO2023273894A1 PCT/CN2022/099037 CN2022099037W WO2023273894A1 WO 2023273894 A1 WO2023273894 A1 WO 2023273894A1 CN 2022099037 W CN2022099037 W CN 2022099037W WO 2023273894 A1 WO2023273894 A1 WO 2023273894A1
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signal
radio frequency
reverse
power
frequency device
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PCT/CN2022/099037
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English (en)
French (fr)
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吴维
程聪
李洋
朱道虹
田珅
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中兴通讯股份有限公司
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Publication of WO2023273894A1 publication Critical patent/WO2023273894A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters

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  • the embodiments of the present application relate to the technical field of communications, and in particular to a standing wave detection method, device, radio frequency device, and storage medium.
  • the standing wave ratio refers to the ratio of the power of the forward signal to the power of the reverse signal, which is used to reflect the communication quality of the radio frequency equipment.
  • the standing wave ratio of the radio frequency equipment can be obtained by standing wave detection, so as to evaluate the communication quality of the radio frequency equipment .
  • the standing wave detection is mainly by adding an additional standing wave detection circuit to the hardware of the radio frequency equipment.
  • the forward signal is collected first, and then the switch is switched to collect the reverse signal so as to periodically operate.
  • Standing wave detection circuit to detect standing wave ratio.
  • An embodiment of the present application provides a standing wave detection method, including: setting a detection signal in the radio frequency signal of the radio frequency device; collecting the forward signal and the reverse signal of the detection signal in one signal collection; determining according to the collected time difference The forward signal and the reverse signal of the detection signal; acquiring the power of the forward signal and the power of the reverse signal; determining the radio frequency according to the power of the forward signal and the power of the reverse signal The SWR of the device.
  • the embodiment of the present application also provides a standing wave detection device, including: a setting module, configured to set a detection signal in a radio frequency signal of a radio frequency device; a collection module, used to collect the forward direction of the detection signal in one signal collection signal and reverse signal; the first determination module is used to determine the forward signal and reverse signal of the detection signal according to the collected time difference; the acquisition module is used to obtain the power of the forward signal and the reverse signal power; a second determining module, configured to determine the standing wave ratio of the radio frequency device according to the power of the forward signal and the power of the reverse signal.
  • a setting module configured to set a detection signal in a radio frequency signal of a radio frequency device
  • a collection module used to collect the forward direction of the detection signal in one signal collection signal and reverse signal
  • the first determination module is used to determine the forward signal and reverse signal of the detection signal according to the collected time difference
  • the acquisition module is used to obtain the power of the forward signal and the reverse signal power
  • a second determining module configured to determine the standing wave
  • the embodiment of the present application also provides a radio frequency device, including a data transmitting module, a power distribution module, an antenna and a data receiving module; the data transmitting module is used to set a detection signal in the radio frequency signal; the power distribution module is used to The forward signal of the detection signal is sent to the data receiving module, and the reverse signal of the forward signal reflected by the antenna is sent to the data receiving module; During collection, the forward signal and the reverse signal are collected, the forward signal and the reverse signal of the detection signal are determined according to the collected time difference, the power of the forward signal and the power of the reverse signal are obtained, and according to the The power of the forward signal and the power of the reverse signal determine the standing wave ratio of the radio frequency device.
  • the embodiment of the present application also provides a computer-readable storage medium, storing a computer program, and implementing the above-mentioned standing wave detection method when the computer program is executed by a processor.
  • Fig. 1 is a schematic flow chart of the standing wave detection method provided by the embodiment of the present application.
  • Fig. 2 is a schematic diagram of the module structure of the standing wave detection device provided by the embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a radio frequency device provided by an embodiment of the present application.
  • Fig. 4 is a structural example diagram of a radio frequency device including a standing wave detection circuit in the present application
  • Fig. 5 is a structural example diagram of a radio frequency device provided by an embodiment of the present application.
  • the main purpose of the embodiment of the present application is to provide a standing wave detection method, device, radio frequency device and storage medium, which can reduce the hardware cost and design difficulty of the radio frequency device due to the standing wave detection requirement.
  • it relates to a standing wave detection method, by setting the detection signal in the radio frequency signal of the radio frequency device, collecting the forward signal and the reverse signal of the detection signal in one signal collection, and determining the detection signal according to the collected time difference The forward signal and the reverse signal, and then determine the standing wave ratio of the radio frequency device according to the power of the forward signal and the reverse signal. Since the forward signal and reverse signal of the detection signal can be collected at the same time in one signal collection, and then the forward signal and reverse signal of the detection signal can be determined according to the time difference of collection, there is no need to collect the forward signal through switching And the reverse signal, so the corresponding standing wave detection circuit can be reduced, thereby reducing the hardware cost and design difficulty of the radio frequency equipment due to the need for standing wave detection.
  • S101 Set a detection signal in a radio frequency signal of a radio frequency device.
  • the radio frequency equipment may be, for example, AAU (Active Antenna Unit, active antenna unit), RRU (Radio Remote Unit, remote radio frequency unit) and other equipment that need to perform standing wave detection.
  • AAU Active Antenna Unit, active antenna unit
  • RRU Radio Remote Unit, remote radio frequency unit
  • the embodiment of the present application does not limit the specific radio frequency equipment.
  • setting the detection signal in the radio frequency signal of the radio frequency device includes: adding a preset identifier to the radio frequency signal of the radio frequency device, and using the signal added with the preset identifier as the detection signal.
  • the preset identifier may be added to a time slot of the radio frequency signal.
  • a preset identifier is added to a GP (Guard Period, guard interval) time slot of the radio frequency signal. Since the GP time slot can be customized, a preset identifier can be added to the GP time slot as a detection signal.
  • the preset identification can be a user-defined signal, which is used to identify the signal for detecting the standing wave.
  • the preset identification is a single tone pulse.
  • the specific preset flag can be set according to actual needs, which is not limited in the embodiment of the present application, for example, it can also be other self-defined signals such as chord tone pulses.
  • the detection signal By adding a preset logo to the radio frequency signal, the detection signal can be identified to complete the setting of the detection signal; and by setting the detection signal in the radio frequency signal, the collection of the forward signal and reverse signal of the detection signal can be facilitated, thereby facilitating Detection of standing waves.
  • S102 Collect a forward signal and a reverse signal of the detection signal in one signal collection.
  • the forward signal of the detection signal refers to the signal emitted by the radio frequency device
  • the reverse signal of the detection signal refers to the signal reflected back by the antenna of the radio frequency device.
  • the radio frequency device includes a data receiving module, and both the forward signal and the reverse signal of the detection signal are collected by the data receiving module of the radio frequency device.
  • the embodiment of the present application does not limit the specific circuit of the radio frequency device, it only needs to collect the forward signal and the reverse signal of the detection signal in one signal collection.
  • Collecting the forward signal and reverse signal of the detection signal in one signal collection refers to collecting the forward signal and reverse signal of the detection signal within the time period of one signal collection.
  • the time length of signal collection can be made longer than the collection time difference between the forward signal and the reverse signal, so that the radio frequency equipment can collect the forward signal and the reverse signal of the detection signal within the time period of one signal collection, realizing the forward signal.
  • One-time acquisition of forward and reverse signals For example, if the acquisition time difference between the forward signal and the reverse signal of the detection signal of a certain radio frequency device is between 10 ns and 500 ns, the time length of the signal acquisition of the radio frequency device can be greater than 500 ns, so that the radio frequency device can collect the signal at one time. Detect the forward signal and reverse signal of the signal.
  • the radio frequency device only collects the two signals, and does not determine which is the forward signal of the detection signal and which is the reverse signal of the detection signal , need to be determined after distinguishing according to the following steps.
  • S103 Determine a forward signal and a reverse signal of the detection signal according to the collected time difference.
  • the forward signal of the detection signal is collected on the way from the radio frequency equipment to the antenna, and the reverse signal of the detection signal is collected after the forward signal is transmitted to the antenna and reflected back, the forward signal of the detection signal is more than The reverse signal is collected earlier, that is to say, the detection signal collected first is the forward signal of the detection signal, and the detection signal collected later is the reverse signal of the detection signal.
  • the forward signal and reverse signal of the detection signal are determined by the collected time difference, and the two signals of the detection signal collected by the radio frequency device in one signal collection can be distinguished, thereby determining the forward signal and reverse signal of the detection signal, There is no need for an additional detection circuit to separately collect the forward signal and the reverse signal used for standing wave detection by switching the switch, thereby reducing the difficulty of circuit design and hardware cost of the radio frequency equipment.
  • S105 Determine the standing wave ratio of the radio frequency device according to the power of the forward signal and the power of the reverse signal.
  • the standing wave detection method by setting the detection signal in the radio frequency signal of the radio frequency device, the forward signal and the reverse signal of the detection signal are collected in one signal collection, and the forward direction signal and the reverse signal of the detection signal are determined according to the collected time difference. Signal and reverse signal, and then determine the standing wave ratio of the radio frequency equipment according to the power of the forward signal and reverse signal.
  • the forward signal and reverse signal of the detection signal can be collected at the same time in one signal collection, and then the forward signal and reverse signal of the detection signal can be determined according to the time difference of collection, there is no need to collect the forward signal through switching And the reverse signal, so the corresponding standing wave detection circuit can be reduced, thereby reducing the hardware cost and design difficulty of the radio frequency equipment due to the need for standing wave detection.
  • a standing wave detection device 200 including a setting module 201, an acquisition module 202, a first determination module 203, an acquisition module 204 and a second determination module 205, the functions of each module are detailed described as follows:
  • a setting module 201 configured to set a detection signal in the radio frequency signal of the radio frequency device
  • a collection module 202 configured to collect a forward signal and a reverse signal of the detection signal in one signal collection
  • the first determining module 203 is configured to determine a forward signal and a reverse signal of the detection signal according to the collected time difference;
  • An acquisition module 204 configured to acquire the power of the forward signal and the power of the reverse signal
  • the second determination module 205 is configured to determine the standing wave ratio of the radio frequency device according to the power of the forward signal and the power of the reverse signal.
  • the identification module 201 is specifically configured to add a preset identification to the radio frequency signal of the radio frequency device, and use the signal added with the preset identification as a detection signal.
  • the identification module 201 is also configured to add a preset identification in the GP time slot of the radio frequency signal of the radio frequency device.
  • this embodiment is an apparatus embodiment corresponding to the foregoing method embodiments, and this embodiment can be implemented in cooperation with the foregoing method embodiments.
  • the relevant technical details mentioned in the foregoing method embodiments are still valid in this embodiment, and will not be repeated here in order to reduce repetition.
  • the relevant technical details mentioned in this embodiment may also be applied to the foregoing method embodiments.
  • modules involved in this embodiment are logical modules.
  • a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units combination is realized.
  • units that are not closely related to solving the technical problem proposed in the present application are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.
  • a radio frequency device 300 as shown in FIG. 3 , including: a data transmission module 301, a power distribution module 302, an antenna 303, and a data receiving module 304.
  • a data transmission module 301 a data transmission module 301
  • a power distribution module 302 an antenna 303
  • a data receiving module 304 The functions of each module are described in detail as follows:
  • the data transmission module 301 is used to set the detection signal in the radio frequency signal
  • the power distribution module 302 is used to send the forward signal of the detection signal to the data receiving module 304, and send the reverse signal reflected by the antenna 303 to the data receiving module 304;
  • the data receiving module 304 is used to collect the forward signal and reverse signal of the detection signal in one signal collection, determine the forward signal and reverse signal of the detection signal according to the collected time difference, and obtain the power of the forward signal and the power of the reverse signal. Power, according to the power of the forward signal and the power of the reverse signal, determine the standing wave ratio of the radio frequency equipment.
  • the data transmitting module 301 is specifically configured to add a preset identifier to the radio frequency signal of the radio frequency device, and use the signal added with the preset identifier as a detection signal.
  • the data transmitting module 301 is specifically configured to add a preset identifier in the GP time slot of the radio frequency signal of the radio frequency device.
  • the power distribution module 302 includes a coupler and a circulator
  • the coupler is used to send the forward signal of the detection signal to the data receiving module 304 and the circulator;
  • the circulator is used to send the forward signal to the antenna 303 , and send the reverse signal reflected by the antenna 303 to the data receiving module 304 .
  • the power distribution module 302 includes a coupler and a circulator, which can better distinguish the forward signal and the reverse signal of the detection signal, reduce mutual interference between the forward signal and the reverse signal, and obtain a more accurate standing wave ratio.
  • the power distribution module 302 also includes a low noise amplifier
  • the circulator is used to send the reverse signal reflected by the forward signal to the low noise amplifier through the antenna 303;
  • the low noise amplifier is used to send the reverse signal to the data receiving module 304 .
  • the power distribution module 302 also includes a low-noise amplifier, because the low-noise amplifier can reduce the noise of the signal and improve the signal-to-noise ratio, so the acquisition quality of the reverse signal can be higher, which is conducive to obtaining a more accurate standing wave ratio.
  • FIG. 4 is a structural example diagram of a radio frequency device including a standing wave detection circuit in the related art.
  • the radio frequency equipment needs to include data receiving module, amplifier, coupler, circulator, filter and antenna, switch, attenuator, low noise amplifier and data receiving module.
  • Its realization of standing wave detection includes two processes: 1. The collection of forward signal power: the forward signal reaches the data receiving module from the data transmitting module through the amplifier, coupler and switch 1 to obtain the power of the forward signal; 2.
  • Reverse Collection of signal power that is, the forward signal passes through the amplifier, coupler, circulator, filter and antenna, and is reflected at the antenna to form a reverse signal, and the reverse signal passes through the circulator, switch 2, attenuator, and switch 1 to reach the data receiver module; and then by comparing the power of the forward signal with the power of the reverse signal, the standing wave ratio is obtained.
  • the radio frequency device includes a data receiving module, an amplifier, a coupler, a circulator, a filter and an antenna, a low noise amplifier and a data receiving module.
  • the process of realizing standing wave detection is as follows: add a single-tone pulse to the GP time slot transmitted by the data transmitting module to form a detection signal; the forward signal of the detection signal reaches the data receiving module through the amplifier and coupler from the data transmitting module; The signal passes through the circulator, filter and antenna from the coupler, and is reflected at the antenna to form a reverse signal of the detection signal.
  • the reverse signal reaches the data transmitting module through the circulator and low-noise amplifier; the data receiving module collects it once in one signal collection
  • the forward signal and reverse signal of the detection signal are detected, and the forward signal and reverse signal of the detection signal are distinguished according to the collected time difference, and then the standing wave ratio is obtained according to the comparison of the power of the forward signal and the power of the reverse signal.
  • the radio frequency device of the embodiment of the present application can collect the forward signal and the reverse signal of the detection signal in one signal collection, the detection can be determined according to the time difference of the collection.
  • the forward signal and reverse signal of the signal do not need to be switched to collect the forward signal and reverse signal, so the example in Figure 5 does not need the circuit of switch 1, attenuator and switch 2 as shown in Figure 4, That is to say, the circuits and chips required for standing wave detection are reduced, thereby reducing the increased hardware cost and design difficulty of radio frequency equipment due to standing wave detection.
  • the radio frequency equipment of the embodiment of the present application reduces the hardware cost and design difficulty due to the need for standing wave detection, and is related to the number of channels of the radio frequency equipment itself. The more difficult the design is, taking a 64T AAU as an example can reduce nearly a hundred components.
  • this embodiment is an equipment embodiment corresponding to the foregoing method embodiments, and this embodiment can be implemented in cooperation with the foregoing method embodiments.
  • the relevant technical details mentioned in the foregoing method embodiments are still valid in this embodiment, and will not be repeated here in order to reduce repetition.
  • the relevant technical details mentioned in this embodiment may also be applied to the foregoing method embodiments.
  • modules involved in this embodiment are logical modules.
  • a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units. Combination of units.
  • units that are not closely related to solving the technical problem proposed in the present application are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.
  • it relates to a computer readable storage medium storing a computer program.
  • the above method embodiments are implemented when the computer program is executed by the processor.
  • a storage medium includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

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Abstract

本申请实施例涉及通信技术领域，公开了一种驻波检测方法、装置、射频设备及存储介质，驻波检测方法包括：在射频设备的射频信号中设置检测信号；在一次信号采集中采集所述检测信号的前向信号和反向信号；根据采集的时间差确定所述检测信号的前向信号和反向信号；获取所述前向信号的功率和所述反向信号的功率；根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。

Description

驻波检测方法、装置、射频设备及存储介质
相关申请的交叉引用
本申请基于申请号为“202110720027.8”、申请日为2021年6月28日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信技术领域，特别涉及一种驻波检测方法、装置、射频设备及存储介质。
背景技术
驻波比，是指前向信号的功率与反向信号的功率之比，用于反映射频设备的通信质量，可以通过驻波检测来获得射频设备的驻波比，从而评估射频设备的通信质量。
目前，驻波检测主要是通过在射频设备的硬件上增加额外的驻波检测电路，在射频设备的运行过程中，先采集前向信号，再通过开关切换至采集反向信号这样周期性地操作驻波检测电路来检测驻波比。
然而，这种检测驻波比的方法需要增加额外的芯片和电路，提高了射频设备的硬件成本和设计难度。
发明内容
本申请实施例提供了一种驻波检测方法，包括：在射频设备的射频信号中设置检测信号；在一次信号采集中采集所述检测信号的前向信号和反向信号；根据采集的时间差确定所述检测信号的前向信号和反向信号；获取所述前向信号的功率和所述反向信号的功率；根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
本申请实施例还提供了一种驻波检测装置，包括：设置模块，用于在射频设备的射频信号中设置检测信号；采集模块，用于在一次信号采集中采集所述检测信号的前向信号和反向信号；第一确定模块，用于根据采集的时间差确定所述检测信号的前向信号和反向信号；获取模块，用于获取所述前向信号的功率和所述反向信号的功率；第二确定模块，用于根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
本申请实施例还提供了一种射频设备，包括数据发射模块、功率分配模块、天线和数据接收模块；所述数据发射模块用于在射频信号中设置检测信号；所述功率分配模块用于将所述检测信号的前向信号发送至所述数据接收模块，并将所述前向信号经所述天线反射的反向信号发送至所述数据接收模块；所述数据接收模块用于在一次信号采集中采集所述前向信号和所述反向信号，根据采集的时间差确定所述检测信号的前向信号和反向信号，获取所述前向信号的功率和反向信号的功率，根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
本申请实施例还提供了一种计算机可读存储介质，存储有计算机程序，所述计算机程序 被处理器执行时实现上述的驻波检测方法。
附图说明
图1是本申请实施例提供的驻波检测方法的流程示意图；
图2是本申请实施例提供的驻波检测装置的模块结构示意图；
图3是本申请实施例提供的射频设备的结构示意图；
图4是本申请包括驻波检测电路的射频设备的结构示例图；
图5是本申请实施例提供的射频设备的结构示例图。
具体实施方式
本申请实施例的主要目的在于提出一种驻波检测方法、装置、射频设备及存储介质，可以减少射频设备因驻波检测需要而增加的硬件成本和设计难度。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
在一个实施例中，涉及一种驻波检测方法，通过在射频设备的射频信号中设置检测信号，在一次信号采集中采集检测信号的前向信号和反向信号，根据采集的时间差确定检测信号的前向信号和反向信号，再根据前向信号和反向信号的功率确定射频设备的驻波比。由于检测信号的前向信号和反向信号可以在一次信号采集中同时采集到，再根据采集的时间差就可以确定检测信号的前向信号和反向信号，不需要通过开关切换来采集前向信号和反向信号，因此可以减少相应的驻波检测电路，从而可以减少射频设备因驻波检测需要而增加的硬件成本和设计难度。
本申请实施例提供的驻波检测方法的具体流程如图1所示，包括以下步骤：
S101：在射频设备的射频信号中设置检测信号。
射频设备例如可以是AAU(Active Antenna Unit，有源天线单元)、RRU(Radio Remote Unit，远端射频单元)等需要进行驻波检测的设备，本申请实施例对具体的射频设备不做限制。
在一个具体的例子，在射频设备的射频信号中设置检测信号，包括：在射频设备的射频信号中加入预设标识，将加入预设标识的信号作为检测信号。而在射频设备的射频信号中加入预设标识时，可以在射频信号的时隙中加入预设标识。可选地，在射频信号的GP(Guard Period，保护时间间隔)时隙中加入预设标识。由于GP时隙可以自定义，因此可以在GP时隙加入预设标识，以作为检测信号。预设标识可以是自定义的一个信号，用于标识检测驻波的信号。可选地，预设标识为单音脉冲。具体的预设标识可以根据实际需要进行设置，本申请实施例对此不做限制，例如还可以是和弦音脉冲等其它自定义的信号。
通过在射频信号中加入预设标识，可以标识出检测信号，完成检测信号的设置；而通过在射频信号中设置检测信号，则可以方便检测信号的前向信号和反向信号的采集，进而方便驻波的检测。
S102：在一次信号采集中采集检测信号的前向信号和反向信号。
检测信号的前向信号是指射频设备向外发射的信号，而检测信号的反向信号是指由于经过射频设备的天线反射回来的信号。可选地，射频设备包括数据接收模块，检测信号的前向信号和反向信号均通过射频设备的数据接收模块进行采集。本申请实施例对射频设备具体的电路不做限制，只需要在一次信号采集中可以采集到检测信号的前向信号和反向信号即可。
在一次信号采集中采集检测信号的前向信号和反向信号，是指在一次信号采集的时间段内采集检测信号的前向信号和反向信号。可选地，可以使信号采集的时间长度大于前向信号与反向信号的采集时间差，从而使射频设备在一次信号采集的时间段内采集到检测信号的前向信号和反向信号，实现前向信号和反向信号的一次性采集。例如，若某个射频设备的检测信号的前向信号与反向信号的采集时间差在10ns～500ns之间，则可以设备射频设备信号采集的时间长度大于500ns，即可以使射频设备一次性采集到检测信号的前向信号和反向信号。
应当理解的是，在采集到检测信号的前向信号和反向信号时，射频设备只是采集到该两个信号，并未确定哪个是检测信号的前向信号，哪个是检测信号的反向信号，需要根据下面的步骤区分后确定。
S103：根据采集的时间差确定检测信号的前向信号和反向信号。
由于检测信号的前向信号是从射频设备发射至天线的途中进行采集的，而检测信号的反向信号是前向信号发射至天线后反射回来后进行采集的，因此检测信号的前向信号比反向信号更早被采集到，也即是说，先采集到的检测信号为检测信号的前向信号，后采集到的检测信号为检测信号的反向信号。
通过采集的时间差来确定检测信号的前向信号和反向信号，可以将射频设备在一次信号采集中采集的检测信号的两个信号进行区分，从而确定检测信号的前向信号和反向信号，不需要额外的检测电路通过开关的切换来分别采集用于驻波检测的前向信号和反向信号，从而降低了射频设备电路设计的难度和硬件成本。
S104：获取前向信号的功率和反向信号的功率。
S105：根据前向信号的功率和反向信号的功率确定射频设备的驻波比。
本申请实施例提供的驻波检测方法，通过在射频设备的射频信号中设置检测信号，在一次信号采集中采集检测信号的前向信号和反向信号，根据采集的时间差确定检测信号的前向信号和反向信号，再根据前向信号和反向信号的功率确定射频备的驻波比。由于检测信号的前向信号和反向信号可以在一次信号采集中同时采集到，再根据采集的时间差就可以确定检测信号的前向信号和反向信号，不需要通过开关切换来采集前向信号和反向信号，因此可以减少相应的驻波检测电路，从而可以减少射频设备因驻波检测需要而增加的硬件成本和设计难度。
此外，本领域技术人员可以理解，上面各种方法的步骤划分，只是为了描述清楚，实现时可以合并为一个步骤或者对某些步骤进行拆分，分解为多个步骤，只要包括相同的逻辑关系，都在本申请的保护范围内；对算法中或者流程中添加无关紧要的修改或者引入无关紧要的设计，但不改变其算法和流程的核心设计都在本申请的保护范围内。
在一个实施例中，涉及一种驻波检测装置200，如图2所示，包括设置模块201、采集模块202、第一确定模块203、获取模块204和第二确定模块205，各模块功能详细说明如下：
设置模块201，用于在射频设备的射频信号中设置检测信号；
采集模块202，用于在一次信号采集中采集检测信号的前向信号和反向信号；
第一确定模块203，用于根据采集的时间差确定检测信号的前向信号和反向信号；
获取模块204，用于获取前向信号的功率和反向信号的功率；
第二确定模块205，用于根据前向信号的功率和反向信号的功率确定射频设备的驻波比。
进一步地，标识模块201具体用于在射频设备的射频信号中加入预设标识，将加入预设标识的信号作为检测信号。
进一步地，标识模块201还用于在射频设备的射频信号的GP时隙中加入预设标识。
不难发现，本实施例为与前述方法的实施例相对应的装置实施例，本实施例可与前述方法的实施例互相配合实施。前述方法的实施例中提到的相关技术细节在本实施例中依然有效，为了减少重复，这里不再赘述。相应地，本实施例中提到的相关技术细节也可应用在前述方法的实施例中。
值得一提的是，本实施例中所涉及到的各模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以多个物理单元的组合实现。此外，为了突出本申请的创新部分，本实施例中并没有将与解决本申请所提出的技术问题关系不太密切的单元引入，但这并不表明本实施例中不存在其它的单元。
在一个实施例中，涉及一种射频设备300，如图3所示，包括：数据发射模块301、功率分配模块302、天线303和数据接收模块304，各模块功能详细说明如下：
数据发射模块301用于在射频信号中设置检测信号；
功率分配模块302用于将检测信号的前向信号发送至数据接收模块304，并将前向信号经天线303反射的反向信号发送至数据接收模块304；
数据接收模块304用于在一次信号采集中采集检测信号的前向信号和反向信号，根据采集的时间差确定检测信号的前向信号和反向信号，获取前向信号的功率和反向信号的功率，根据前向信号的功率和反向信号的功率确定射频设备的驻波比。
进一步地，数据发射模块301具体用于在射频设备的射频信号中加入预设标识，将加入预设标识的信号作为检测信号。
进一步地，数据发射模块301具体用于在射频设备的射频信号的GP时隙中加入预设标识。
进一步地，功率分配模块302包括耦合器和环形器；
耦合器用于将检测信号的前向信号发送至数据接收模块304和环形器；
环形器用于将前向信号发送至天线303，并将前向信号经天线303反射的反向信号发送至数据接收模块304。
功率分配模块302包括耦合器和环形器，可以使检测信号的前向信号和反向信号能更好地区分，减少前向信号与反向信号的互相干扰，从而得到更加准确的驻波比。
进一步地，功率分配模块302还包括低噪放大器；
环形器用于将前向信号经天线303反射的反向信号发送至低噪放大器；
低噪放大器用于将反向信号发送至数据接收模块304。
功率分配模块302还包括低噪放大器，由于低噪放大器可以减少信号的噪声，提高信噪 比，因此可以使反向信号的采集质量更高，有利于得到更加准确的驻波比。
为了更加清楚说明本申请实施例的方案，下面以具体的示例进行说明。
请参考图4，其为相关技术中包括驻波检测电路的射频设备的结构示例图。如图4所示，射频设备需要包括数据接收模块、放大器、耦合器、环形器、滤波器和天线、开关、衰减器、低噪放大器以及数据接收模块。其实现驻波检测包括两个过程：一、前向信号功率的采集：前向信号从数据发射模块经过放大器、耦合器和开关1到达数据接收模块，获取前向信号的功率；二、反向信号功率的采集：即前向信号经过放大器、耦合器、环形器、滤波器和天线，在天线处反射形成反向信号，反向信号经过环形器、开关2、衰减器、开关1到达数据接收模块；然后通过前向信号的功率与反向信号的功率的比较，得到驻波比。
请参考图5，其为本申请实施例的射频设备的结构示例图。如图5所示，射频设备包括数据接收模块、放大器、耦合器、环形器、滤波器和天线、低噪放大器以及数据接收模块。其实现驻波检测的过程为：在数据发射模块发射的GP时隙中加入单音脉冲，形成检测信号；检测信号的前向信号从数据发射模块经过放大器、耦合器到达数据接收模块；前向信号从耦合器经过环形器、滤波和天线，在天线处反射形成检测信号的反向信号，反向信号经环形器和低噪放大器到达数据发射模块；数据接收模块在一次信号采集中一次性采集到检测信号的前向信号和反向信号，根据采集的时间差区分出检测信号的前向信号和反向信号，再根据前向信号的功率和反向信号的功率的比较，得到驻波比。
从图4和图5的示例的比较可以看出，由于本申请实施例的射频设备可以在一次信号采集中采集到检测信号的前向信号和反向信号，再根据采集的时间差就可以确定检测信号的前向信号和反向信号，不需要通过开关切换来采集前向信号和反向信号，因此图5的示例不需要如图4所示的开关1、衰减器和开关2部分的电路，也即减少了因驻波检测所需的电路和芯片，从而减少了射频设备因驻波检测需要而增加的硬件成本和设计难度。
采用本申请实施例的射频设备在减少因驻波检测需要而增加的硬件成本和设计难度，与射频设备本身的通道数相关，通道数越多，减少因驻波检测需要而增加的硬件成本和设计难度越多，以一款64T AAU为例可减少近百颗器件。
不难发现，本实施例为与前述方法的实施例相对应的设备实施例，本实施例可与前述方法的实施例互相配合实施。前述方法的实施例中提到的相关技术细节在本实施例中依然有效，为了减少重复，这里不再赘述。相应地，本实施例中提到的相关技术细节也可应用在前述方法的实施例中。
值得一提的是，本实施例中所涉及到的各模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以以多个物理单元的组合实现。此外，为了突出本申请的创新部分，本实施例中并没有将与解决本申请所提出的技术问题关系不太密切的单元引入，但这并不表明本实施例中不存在其它的单元。
在一个实施例中，涉及一种计算机可读存储介质，存储有计算机程序。计算机程序被处理器执行时实现上述方法实施例。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部 或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施例是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种驻波检测方法，包括：
    在射频设备的射频信号中设置检测信号；
    在一次信号采集中采集所述检测信号的前向信号和反向信号；
    根据采集的时间差确定所述检测信号的前向信号和反向信号；
    获取所述前向信号的功率和所述反向信号的功率；
    根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
  2. 根据权利要求1所述的驻波检测方法，其中，所述在射频设备的射频信号中设置检测信号，包括：
    在射频设备的射频信号中加入预设标识，将加入所述预设标识的信号作为所述检测信号。
  3. 根据权利要求2所述的驻波检测方法，其中，所述在射频设备的射频信号中加入预设标识，包括：
    在所述射频设备的射频信号的GP时隙中加入所述预设标识。
  4. 一种驻波检测装置，包括：
    设置模块，用于在射频设备的射频信号中设置检测信号；
    采集模块，用于在一次信号采集中采集所述检测信号的前向信号和反向信号；
    第一确定模块，用于根据采集的时间差确定所述检测信号的前向信号和反向信号；
    获取模块，用于获取所述前向信号的功率和所述反向信号的功率；
    第二确定模块，用于根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
  5. 一种射频设备，包括数据发射模块、功率分配模块、天线和数据接收模块；
    所述数据发射模块用于在射频信号中设置检测信号；
    所述功率分配模块用于将所述检测信号的前向信号发送至所述数据接收模块，并将所述前向信号经所述天线反射的反向信号发送至所述数据接收模块；
    所述数据接收模块用于在一次信号采集中采集所述前向信号和所述反向信号，根据采集的时间差确定所述检测信号的前向信号和所述反向信号，获取所述前向信号的功率和所述反向信号的功率，根据所述前向信号的功率和所述反向信号的功率确定所述射频设备的驻波比。
  6. 根据权利要求5所述的射频设备，其中，所述数据发射模块具体用于在所述射频设备的射频信号中加入预设标识，将加入所述预设标识的信号作为所述检测信号。
  7. 根据权利要求6所述的射频设备，其中，所述数据发射模块具体用于在所述射频设备的射频信号的GP时隙中加入所述预设标识。
  8. 根据权利要求5至权利要求7任一项所述的射频设备，其中，所述功率分配模块包括耦合器和环形器；
    所述耦合器用于将所述检测信号的前向信号发送至所述数据接收模块和所述环形器；
    所述环形器用于将所述前向信号发送至所述天线，并将所述前向信号经所述天线反射的反向信号发送至所述数据接收模块。
  9. 根据权利要求8所述的射频设备，其中，所述功率分配模块还包括低噪放大器；
    所述环形器用于将所述前向信号经所述天线反射的反向信号发送至所述低噪放大器；
    所述低噪放大器用于将所述反向信号发送至所述数据接收模块。
  10. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至3任一项所述的驻波检测方法。
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