WO2020114126A1 - 光链路诊断方法、及相应的设备和存储介质 - Google Patents

光链路诊断方法、及相应的设备和存储介质 Download PDF

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Publication number
WO2020114126A1
WO2020114126A1 PCT/CN2019/112600 CN2019112600W WO2020114126A1 WO 2020114126 A1 WO2020114126 A1 WO 2020114126A1 CN 2019112600 W CN2019112600 W CN 2019112600W WO 2020114126 A1 WO2020114126 A1 WO 2020114126A1
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Prior art keywords
optical signal
optical
link
peer device
communication link
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PCT/CN2019/112600
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English (en)
French (fr)
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王超
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中兴通讯股份有限公司
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Publication of WO2020114126A1 publication Critical patent/WO2020114126A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0791—Fault location on the transmission path

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to an optical link diagnosis method, and corresponding equipment and storage media.
  • the communication network (3G/4G/5G) uses a lot of distributed base station architecture, and the RRU (Remote Radio Unit) and BBU (Building Baseband Unit, indoor baseband processing unit) are connected by high-speed optical fiber to realize baseband digital signals Transmission, the transmission rate can reach 10Gb/s.
  • RRU Remote Radio Unit
  • BBU Building Baseband Unit, indoor baseband processing unit
  • One BBU can support multiple RRUs, and the BBU and RRU multi-channel solution can solve the indoor coverage of large venues.
  • BBU and RRU base station equipment
  • the technical problem to be solved by the present invention is to provide an optical link diagnosis method, and corresponding equipment and storage medium, to at least solve the problem of difficult positioning of the optical link fault.
  • an optical link diagnosis method in an embodiment of the present invention includes: detecting a broken link of an optical link with a peer device; building an optical signal communication link with the peer device; Obtain diagnostic information of the peer device according to the optical signal communication link.
  • an optical link diagnosis method in an embodiment of the present invention includes: constructing an optical signal communication link with the peer device; according to the optical signal communication link, diagnosing the local device The information is sent to the peer device.
  • an indoor baseband processing unit in an embodiment of the present invention, wherein the indoor baseband processing unit includes a memory and a processor, the memory stores an optical link diagnosis computer program, and the processor executes The computer program to implement the steps of the method as described in any one of the BBU side.
  • a remote radio frequency module in an embodiment of the present invention includes a memory and a processor, the memory stores an optical link diagnosis computer program, and the processor executes the computer program to achieve normal use. Any one of the methods described on the RRU side.
  • an optical link diagnostic device in an embodiment of the present invention, wherein the diagnostic device includes a memory and a processor, the memory stores a first computer program and a second computer program; the processing The processor executes the first computer program to implement the steps of the method as described in any one of the BBU side; the processor executes the second computer program to implement any of the method as the one of the RRU side ⁇ The method.
  • a computer-readable storage medium in an embodiment of the present invention, wherein the storage medium stores a first computer program and/or a second computer program; the first computer program may be at least one Executed by a processor to implement the steps of the method as described in any one of the BBU side; the second computer program may be executed by at least one processor to implement the method as described in any one of the side of the RRU of.
  • a computer program product in an embodiment of the present invention includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions.
  • the program instructions When the program instructions are executed by a computer, the computer is caused to execute the methods described in the above aspects.
  • FIG. 1 is a flowchart of an optical link diagnosis method in Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a BBU-RRU preset module in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the topology of the BBU-RRU communication network in the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the effect of low-speed communication between BBU and RRU in the embodiment of the present invention.
  • FIG. 5 is a flowchart of the optical link diagnosis method in Embodiment 2 of the present invention.
  • FIG. 6 is a diagnosis flowchart of the optical link diagnostic device in Embodiment 3 of the present invention.
  • An embodiment of the present invention provides an optical link diagnosis method. As shown in FIG. 1, the method includes: S101, detecting a broken link of an optical link with a peer device; S102, constructing with the peer device Optical signal communication link; S103, acquiring diagnostic information of the peer device according to the optical signal communication link.
  • the method in the embodiment of the present invention can be applied to a communication network using a distributed base station architecture, such as 3G, 4G, or 5G; in the communication network, it can be cascaded in the manner of BBU-RRU1-RRU2-RRU3; that is, communication
  • the network includes cascading between BBU-RRUs, and may also include cascading between RRU-RRUs; if used to diagnose optical links between BBU-RRUs, the method in the embodiment of the present invention may be used to In the local device composed of the indoor baseband processing unit BBU, the remote device is the remote radio module RRU; if it is used to diagnose the optical link between RRU1-RRU2, the method in the embodiment of the present invention may be composed of the RRU1.
  • the opposite device is RRU2.
  • a new optical signal communication link is rebuilt to form a downstream device (that is, the peer device) through the optical signal communication link.
  • the optical link faults can be located based on the collected diagnostic information, thereby effectively solving the problem of difficult positioning of the optical link fault; the collected diagnostic information can include optical link related information, device information, and so on.
  • the method in the embodiment of the present invention may be implemented in the form of a program module, that is, each step of the method in the embodiment of the present invention is implemented through each program module.
  • the method may further include: acquiring diagnostic information of the local device (that is, BBU diagnostic information); based on the diagnostic information of the local device and the diagnostic information of the peer device To determine the optical link diagnostic information of the optical link broken link; through the operation and maintenance center, transparently transmit the broken link diagnostic information to the network management center.
  • diagnostic information of the local device that is, BBU diagnostic information
  • the optical modules residing on the BBU and RRU when the BBU-RRU is working normally, the optical modules residing on the BBU and RRU generate ultra-short light pulses (light pulses are the light that the light source emits intermittently at a certain time interval) for high-speed communication.
  • the high-speed channel cannot work normally, it is determined that the BBU-RRU communication link (that is, the optical link) is broken. At this time, it is difficult to troubleshoot and cause a high rate of erroneous hardware repair; and the method in the embodiment of the present invention can be applied to BBU Can effectively solve these problems.
  • an optical signal communication link can be constructed on the underlying physical link between the devices at both ends; for example, the following modules can be preset in the underlying physical link between the devices at both ends: photoelectric conversion, electro-optical Conversion, optical transmitter, optical receiver, light source, driver, modulator, switch optical port, photodetector, amplifier, related circuit, optical repeater.
  • BBU-RRU uses BBU-RRU as an example to describe the embodiments of the present invention by means of program modules.
  • the BBU-RRU preset modules are shown in Figure 2; Figure 2 shows the BBU sending optical signals to the RRU; set the BBU module in the figure in the RRU, and set the RRU module in the figure In the BBU, the RRU can send optical signals to the BBU.
  • an RRU diagnostic module and an RRU optical module can also be set in the RRU; a BBU alarm collection module, a BBU diagnostic module, and a BBU optical module can also be set in the BBU.
  • the RRU diagnostic module runs on the RRU and is used to collect RRU diagnostic information. Can control the RRU optical port to transmit optical signals to the BBU.
  • the RRU optical module is responsible for photoelectric conversion and is used to transmit modulated optical signals at a corresponding rate. At the same time, it can also convert the optical signals sent from the BBU side into electrical signals.
  • the BBU alarm collection module runs on the BBU and is used to detect the BBU-RRU broken link alarm, that is, to detect the broken link of the optical link with the peer device.
  • the BBU diagnostic module runs on the BBU and is used to collect BBU diagnostic information. Can control the switch BBU optical port, transmit signals to RRU, used to collect BBU-RRU upper and lower optical link diagnostic information, analyze the root cause of the broken link, give further troubleshooting suggestions, and finally in NMC (NetWork Management Center, network management center) The interface of the diagnostic information display module is displayed.
  • the BBU optical module is responsible for photoelectric conversion and is used to transmit modulated optical signals at a corresponding rate. At the same time, the optical signals sent from the RRU side are converted into electrical signals.
  • OMC Operaation and Maintenance Center, operation and maintenance center
  • the NMC alarm monitoring module is responsible for monitoring the alarm reported by the BBU. When the BBU-RRU link is restored, the alarm is cancelled.
  • the NMC diagnostic information display module is used to display detailed diagnostic information of BBU-RRU upper and lower optical links, and provide troubleshooting reference for O&M personnel.
  • the acquiring diagnostic information of the peer device according to the optical signal communication link may include: receiving the optical signal in the optical signal communication link as bit data ; According to the bit data, determine the diagnostic information of the peer device (RRU diagnostic information).
  • the receiving the optical signal in the optical signal communication link as bit data may optionally include: analog timing; according to the timing, receiving the optical signal in the optical signal communication link as bit data.
  • the UART Universal Asynchronous Receiver/Transmitter
  • the CPU Central Processing Unit
  • the determining the diagnosis information of the peer device according to the bit data optionally includes: restoring the bit data to the diagnosis information of the peer device according to a preset frame format.
  • the transmission speed of the optical signal communication link is less than the transmission speed of the optical link, that is, after the optical links of the devices at both ends are broken, a new optical communication link is re-established ( Optical signal communication link) to complete the collection and analysis of optical link related information and device information on downstream devices; for example, the optical and non-optical signals generated when the peer device uses the optical module to open and close, at the local device
  • the light and non-light signals are composed of 0 and 1 codes, where 0 and 1 are bit data, and the diagnostic information is sent and received through software simulation timing to achieve the purpose of low-speed communication; that is, in some embodiments, the Constructing an optical signal communication link with the peer device includes: detecting an optical signal sent by the peer device; and constructing the optical signal communication link according to the optical signal.
  • the RRU sending process may include: Step 11, frame RRU diagnostic information to be sent according to a preset frame format; Step 12, send bits according to the frame format by turning on and off the optical module; Among them, bit 0: turn off the optical module, the binary 0 is represented by the non-light state; bit is 1: turn on the optical module to send the optical signal, and the binary 1 is represented by the bright state.
  • the BBU receiving process may include: step 21, receiving bit data by detecting light signals with and without light; step 22, restoring bit data to bytes according to a preset frame format, that is, obtaining RRU diagnostic information; step 23, The verification is passed, and the obtained RRU diagnostic information is saved for future use.
  • An embodiment of the present invention provides an optical link diagnosis method. As shown in FIG. 5, the method includes: S201, constructing an optical signal communication link with the peer device; S202, according to the optical signal communication link, Sending the diagnosis information of the local device to the peer device.
  • the embodiment of the present invention may be in a local device composed of a remote radio frequency module RRU, and the peer device may be an indoor baseband processing unit BBU.
  • the sending diagnostic information of the local device to the peer device according to the optical signal communication link includes: acquiring the diagnostic information of the local device;
  • the optical signal communication link transmits the bit data of the diagnostic information of the local device to the peer device through an optical signal according to a preset frame format.
  • the sending of the bit data of the diagnostic information of the local device to the peer device through an optical signal includes: analog timing; according to the timing, the bit The data is sent to the peer device through an optical signal.
  • the building of an optical signal communication link with the peer device includes: controlling the optical port of the local device to switch to send an optical signal; according to the optical signal and the The peer device builds an optical signal communication link.
  • the method further includes: receiving the optical signal in the optical signal communication link as bit data; obtaining the diagnosis request of the peer device according to the bit data; according to the The diagnosis request triggers sending the diagnosis information of the local device to the peer device according to the optical signal communication link.
  • receiving the optical signal in the optical signal communication link as bit data may include: analog timing; according to the timing, receiving the optical signal in the optical signal communication link as bit data.
  • obtaining the diagnosis request of the peer device according to the bit data may include: restoring the bit data into a diagnosis request according to a preset frame format.
  • constructing an optical signal communication link with the peer device includes: detecting an optical signal sent by the peer device; constructing the optical signal communication link according to the optical signal .
  • Embodiment 1 For specific implementation of the embodiments of the present invention, refer to Embodiment 1, which has corresponding technical effects.
  • the embodiments of the present invention provide an optical link diagnostic device, which mainly describes the interaction between the BBU and the RRU through a software module; in Embodiment 1 and Embodiment 2 In the specific implementation process, the corresponding technical details can be referred to this embodiment; in the case of BBU-RRU broken link, the diagnostic device uses a special low-speed channel to automatically diagnose the RRU fault analyzer for the optical link. During the transmission of information, it is mainly realized by the CPU simulating UART on both sides of BBU and RRU.
  • BBU establishes and maintains the monitoring task of uploading broken chain information of RRU. After receiving the broken chain, the starting signal sent by RRU completes the reception and storage of RRU diagnostic information.
  • the BBU receives the bit data by detecting the light and light signals, and restores the bit stream to bytes according to the data coding rules and frame format agreed by the BBU and RRU to obtain RRU diagnostic information.
  • the BBU After receiving the message that the NMS reads the data, the BBU should comprehensively diagnose the RRU and BBU diagnostic information after the link is broken and the diagnostic information on both sides before the link is broken, and then transmit the result information (optical link diagnostic information) to the NMC network management. , NMC network management presents the diagnosis results.
  • the diagnostic device in the embodiment of the present invention may include an RRU diagnostic module, an RRU optical module, a BBU alarm collection module, a BBU diagnostic module, a BBU optical module, an NMC alarm monitoring module, and a diagnostic information display module.
  • RRU optical module responsible for photoelectric conversion, used to transmit the modulated optical signal of the corresponding rate, and at the same time, convert the optical signal sent from the BBU side into an electrical signal.
  • the RRU diagnostic information is transmitted to the BBU by continuously switching the optical port.
  • RRU diagnostic module runs on the RRU and is used to collect RRU diagnostic information, including optical module over-temperature, over-distance, over-rate, and excessive light attenuation.
  • the judgment basis is as follows: excessive temperature and excessive optical attenuation: the local end obtains excessive temperature and The status information of the received power is too low, and the received power of the optical port is too low, which is equivalent to the light attenuation to a certain extent.
  • the local end obtains distance and rate information, performs fiber optic ranging, and at the same time obtains the optical port rate configured by the OMC server.
  • the value of the optical fiber ranging value is greater than the preset multiple of the single-mode transmission distance, which is considered to be used for over-range, for example, 1.5 times. For cases where fiber ranging is not supported, it is considered that it is not used beyond the range. Whether the RRU side is out of range, use the RRU side optical module transmission distance and the BBU side fiber distance measurement result comparison.
  • the nominal 10G optical module allows the use rate: 6.144G ⁇ 10.13376G
  • BBU optical module responsible for photoelectric conversion, used to transmit the modulated optical signal at the corresponding rate, and at the same time, convert the optical signal sent from the RRU side into an electrical signal. In the case of a broken link, information is transmitted to the RRU (such as a diagnosis request) by continuously switching on and off the optical port.
  • BBU diagnostic module runs on the BBU to collect BBU diagnostic information.
  • the BBU issues a diagnostic request, starts collecting RRU optical port information on the low-speed channel, and periodically polls whether the collection is complete. If the polling collection fails, the NMC network management diagnosis fails. If the polling succeeds, the internal interface is called to obtain RRU diagnostic information, and the organization responds with a reply message to the network management.
  • BBU alarm collection module runs on the BBU and is used to detect the BBU-RRU broken link alarm.
  • call the BBU diagnostic module to obtain diagnostic information including the BBU and RRU side of the optical link, that is, obtain the optical link diagnostic information of the optical link broken link, and give specific criteria.
  • Pass Report an optical link broken link alarm carry a guiding conclusion, add it to the alarm information, and report it to the NMC network management.
  • Step 301 The BBU alarm collection module detects that the optical link receiving link fault has changed from False to True, triggering the collection of BBU-RRU optical link diagnostic information;
  • Step 302 The BBU collects the local optical port over-temperature, over-range, over-rate, and excessive light attenuation status information, and starts a polling timer to collect over-temperature, over-range, and over-range RRU optical ports through the low-speed channel.
  • Step 303 If the polling collection fails, organize the diagnosis conclusion of the BBU side and report it to the OMC server as an additional text; the polling succeeds, get the RRU side information, and organize the complete BBU-RRU optical link diagnosis In conclusion, the information is reported to the OMC server as additional text;
  • Step 304 The OMC server reports the alarm to the NMC, and the operation and maintenance personnel observe the "RRU broken link alarm" in the NMC alarm monitoring module, which can be obtained from the additional information of the alarm Concluding guidance, if you want to further obtain the original data supporting the diagnosis conclusion, select the alarm and perform "RRU failure analysis”;
  • Step 305 The NMC server sends the "RRU failure analysis” request to the OMC server, and OMC constructs the BBU-RRU The link diagnosis request is sent to the BBU;
  • Step 306 The BBU diagnosis module collects the raw diagnostic data of the local optical port and the connected RRU optical port through the low-speed channel.
  • optical port location can assist the fault location of the optical link, including: optical port location, Fiber optic ranging, optical port configuration rate, normal serial rate, (9um) single-mode fiber km-level transmission distance, (9um) single-mode fiber 100m-level transmission distance, manufacturer name, device model, laser wavelength, transmission rate deviation upper limit, Transmission rate deviation lower limit, device barcode, production date, supported digital diagnostic type, transceiver temperature, transceiver voltage value, TX bias current, TX transmit power, RX receive power, remote device model, remote device SN 3. The major version number of the remote device, the reason for the last reset of the remote device, the input voltage of the remote device, and the cumulative error codes of the LCV of the remote device.
  • Step 307 The BBU diagnosis module returns the collected original diagnosis data to the OMC server, and the OMC server further returns to the NMC.
  • the operation and maintenance personnel can view the original diagnosis data in the NMC diagnosis information display module to assist in troubleshooting the optical link.
  • Step 308 The operation and maintenance personnel perform troubleshooting based on the optical link diagnostic information.
  • the "RRU broken link alarm" of the NMC alarm monitoring module disappears, and the BBU-RRU link resumes high-speed communication.
  • the embodiment of the present invention provides an automatic diagnosis method of an optical link in the case of a BBU-RRU broken link.
  • the method is constructed by switching the BBU and RRU optical ports when the high-speed communication channel of the BBU-RRU is broken.
  • a low-speed communication channel to transmit important optical link diagnostic information, help O&M personnel narrow down the troubleshooting scope, accurately locate the problem, and quickly repair the optical link failure.
  • An embodiment of the present invention provides an indoor baseband processing unit.
  • the indoor baseband processing unit includes a memory and a processor.
  • the memory stores an optical link diagnosis computer program.
  • the processor executes the computer program to implement the implementation. The steps in any one of the methods described in Example 1 to Example 3 are used on the BBU side.
  • An embodiment of the present invention provides a remote radio frequency module.
  • the remote radio frequency module includes a memory and a processor.
  • the memory stores an optical link diagnosis computer program.
  • the processor executes the computer program to implement the implementation. Steps of any one of the methods described in any one of Examples 1 to 3 for the RRU side.
  • An embodiment of the present invention provides an optical link diagnostic device.
  • the diagnostic device includes a memory and a processor.
  • the memory stores a first computer program and a second computer program.
  • the processor executes the first computer program.
  • the processor executes the second computer program to implement the first embodiment to the third embodiment for the RRU side Any one of the steps of the method.
  • An embodiment of the present invention provides a computer-readable storage medium, where the storage medium stores a first computer program and/or a second computer program; the first computer program may be executed by at least one processor to implement, for example, Steps 1 to 3 are used for the steps of the method described in any one of the BBU side; the second computer program may be executed by at least one processor to implement the method for the RRU side as in the first embodiment to the third embodiment Any one of the method steps.
  • An embodiment of the present invention provides a computer program product.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, Causing the computer to execute the method in any of the above method embodiments.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform, and of course, can also be implemented by hardware, but in many cases the former is better Implementation.
  • the technical solutions of the present invention can be embodied in the form of software products in essence or part of contributions to the existing technology, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk,
  • the CD-ROM includes several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present invention.

Abstract

本发明公开了一种光链路诊断方法、及相应的设备和存储介质，所述方法包括：监测到与对端设备之间光链路的断链；与所述对端设备构建光信号通信链路；根据所述光信号通信链路，获取所述对端设备的诊断信息。

Description

光链路诊断方法、及相应的设备和存储介质
交叉引用
本发明要求在2018年12月5日提交至中国专利局、申请号为201811483561.6、发明名称为“光链路诊断方法、及相应的设备和存储介质”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本发明涉及通信技术领域，特别是涉及一种光链路诊断方法、及相应的设备和存储介质。
背景技术
通信网络(3G/4G/5G)大量使用分布式基站架构，RRU(Remote Radio Unit，远端射频模块)和BBU(Building Baseband Unit，室内基带处理单元)之间通过高速光纤连接，实现基带数字信号传输，传输速率可达10Gb/s。一个BBU可以支持多个RRU，采用BBU和RRU多通道方案，可以很好地解决大型场馆的室内覆盖。
目前全球运行的基站设备(BBU和RRU)共有超过100万台，而现网光链路故障问题在外场是BBU和RRU的非常常见的问题，故障原因很多，在故障发生时刻，很难定位到故障根因，已经是一个历史难题。
针对在一些情形下光链路的故障定位难题，本领域未给出有效的解决方案。
发明内容
为了克服上述缺陷，本发明要解决的技术问题是提供一种光链路诊断方法、及相应的设备和存储介质，用以至少解决光链路故障定位困难的问题。
为解决上述技术问题，本发明实施例中的一种光链路诊断方法，包括：监测到与对端设备之间光链路的断链；与所述对端设备构建光信号通信链路；根据所述光信号通信链路，获取所述对端设备的诊断信息。
为解决上述技术问题，本发明实施例中的一种光链路诊断方法，包括：与所述对端设备构建光信号通信链路；根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备。
为解决上述技术问题，本发明实施例中的一种室内基带处理单元，其中，所述室内基带处理单元包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如用于BBU侧的任意一项所述方法的步骤。
为解决上述技术问题，本发明实施例中的一种远端射频模块包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如用于RRU侧的中任意一项所述方法的。
为解决上述技术问题，本发明实施例中的一种光链路诊断器，其中，所述诊断器包括存储器和处理器，所述存储器存储有第一计算机程序和第二计算机程序；所述处理器执行所述第一计算机程序，以实现如用于BBU侧的任意一项所述方法的步骤；所述处理器执行所述第二计算机程序，以实现如用于RRU侧的中任意一项所述方法的。
为解决上述技术问题，本发明实施例中的一种计算机可读存储介质，其中，所述存储介质存储有第一计算机程序和/或第二计算机程序；所述第一计算机程序可被至少一个处理器执行，以实现如用于BBU侧的任意一项所述方法的步骤；所述第二计算机程序可被至少一个处理器执行，以实现如用于RRU侧的中任意一项所述方法的。
为解决上述技术问题，本发明实施例中的一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行以上各个方面所述的方法。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1是本发明实施例一中的光链路诊断方法的流程图；
图2是本发明实施例中BBU-RRU预置的模块示意图；
图3是本发明实施例中BBU-RRU的通信网络中的拓扑示意图；
图4是本发明实施例中BBU和RRU之间低速通信的效果示意图；
图5是本发明实施例二中的光链路诊断方法的流程图；
图6是本发明实施例三中的光链路诊断器的诊断流程图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身没有特定的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
使用用于区分元件的诸如“第一”、“第二”等前缀仅为了有利于本发明的说明，其本身没有特定的意义。
实施例一
本发明实施例提供一种光链路诊断方法，如图1所示，所述方法包括：S101，监测到与对端设备之间光链路的断链；S102，与所述对端设备构建光信号通信链路；S103，根据所述光信号通信链路，获取所述对端设备的诊断信息。
本发明实施例中的方法可以应用于采用分布式基站架构的通信网络中，例如3G、4G或5G；在通信网络中可以采用BBU-RRU1-RRU2-RRU3的方式级联；也就是说，通信网络包括了BBU-RRU之间的级联，也可以包括RRU-RRU之间的级联；如果用于诊断BBU-RRU之间的光链路时，本发明实施例中的方法可以用于由室内基带处理单元BBU构成的本端设备中，对端设备为远端射频模块RRU；如果用于诊断RRU1-RRU2之间的光链路时，本发明实施例中的方法可以由RRU1构成的本端设备中，对端设备为RRU2。
本发明实施例中方法在本端设备与对端设备的光链路断链后，重修组建一个新的光信号通信链路，从而可以通过光信号通信链路完成下游设备(即对端设备)上诊断信息的收集，进而可以根据收集的诊断信息定位光链路故障，进而有效解决光链路故障定位困难的问题；其中收集的诊断信息可以包括光链路相关信息、设备信息等。
本发明实施例中方法可以采用程序模块的形式实现，即通过各个程序模块来实现本发明实施例中方法的各个步骤。
在本发明实施例的一些实施方式中，所述方法还可以包括：获取本端设备的诊断信息(即BBU诊断信息)；根据所述本端设备的诊断信息和所述对端设备的诊断信息，确定所述光链路断链的光链路诊断信息；通过操作维护中心，将所述断链诊断信息透传给网络管理中心。
例如，在BBU-RRU正常工作时，驻留在BBU、RRU上的光模块通过产生超短光脉冲(光脉冲就是光源按着一定时间间隔时断时续的发光)进行高速通信，当这种高速通道无法正常工作时，则认定BBU-RRU通讯链路(即光链路)断链，此时存在故障排查困难，并导致硬件误返修率高；而本发明实施例中方法可以应用于BBU中，从而可以有效解决这些问题。
例如，在具体实现过程中，可以在两端设备之间的底层物理链路上构建光信号通信链路；例如，可以在两端设备的底层物理链路中预置以下模块：光电转换、电光转换、光发送机、光接收机、光源、驱动器、调制器、开关光口、光检测器、放大器、相关电路、光中继器。
以下以BBU-RRU为例，通过程序模块的方式，来对本发明实施例的进行描述。
BBU-RRU预置的各个模块如图2所示；图2中示出的是BBU向RRU发送光信号的情况；将图中的BBU中的模块设置在RRU中，将图中的RRU模块设置在BBU中，即可实现RRU向BBU发送光信号。具体地，RRU中还可以在设置RRU诊断模块、RRU光模块；BBU中也可以设置BBU告警采集模块、BBU诊断模块、BBU光模块。
如图3中BBU-RRU的通信网络中的拓扑示意图所示，其中：RRU诊断模块，运行于RRU上，用于搜集RRU诊断信息。可控制开关RRU光口，向BBU传输光信号。
RRU光模块，负责光电转换，用于发射相应速率的调制光信号，同时，也可以把BBU侧发送过来的光信号转换成电信号。
BBU告警采集模块，运行于BBU上，用于检测BBU-RRU断链告警，即用于监测到与对端设备之间光链路的断链。
BBU诊断模块，运行于BBU上，用于搜集BBU诊断信息。可控制开关BBU光口，向RRU传输信号，用于采集BBU-RRU上下级光链路诊断信息，分析断链根因，给出进一步排查建议，最终在NMC(NetWork Management Center，网络管理中心)诊断信息显示模块界面显示。
BBU光模块，负责光电转换，用于发射相应速率的调制光信号，同时，把 RRU侧发送过来的光信号转换成电信号。
OMC(Operation and Maintenance Center，操作维护中心)，负责将BBU的告警和诊断消息透传到NMC。
NMC告警监控模块，负责监控BBU上报的告警，当BBU-RRU链路恢复后，告警取消。
NMC诊断信息显示模块，用于显示BBU-RRU上下级光链路诊断详细信息，为运维人员提供排障参考。
在本发明实施例的一些实施方式中，所述根据所述光信号通信链路，获取所述对端设备的诊断信息，可以包括：将所述光信号通信链路中光信号接收为比特数据；根据所述比特数据，确定所述对端设备的诊断信息(RRU诊断信息)。
其中，所述将所述光信号通信链路中光信号接收为比特数据，可选地包括：模拟时序；根据所述时序，将所述光信号通信链路中光信号接收为比特数据。例如，通过两端设备的两侧CPU(Central Processing Unit，中央处理器)模拟UART(Universal Asynchronous Receiver/Transmitter，通用异步收发传输器)实现模拟时序。
其中，所述根据所述比特数据，确定所述对端设备的诊断信息，可选地包括：根据预设的帧格式，将所述比特数据还原为所述对端设备的诊断信息。
在本发明实施例中，光信号通信链路的传输速度要小于光链路的传输速度，也就是说，在两端设备的光链路断链后，重新组建一个新的光通信链路(即光信号通信链路)，来完成下游设备上的光链路相关信息、设备信息的收集分析；例如，在对端设备利用光模块打开关闭时产生的有光、无光信号，在本地设备将有光、无光信号组成0、1编码，其中0、1为比特数据，并通过软件模拟时序来收发诊断信息，从而达到低速通信的目的；也就是说，在一些实施方式中，所述与所述对端设备构建光信号通信链路，包括：检测所述对端设备发出的光信号；根据所述光信号构建所述光信号通信链路。
例如，RRU发送流程可以包括：步骤11，将待发送的RRU诊断信息按照预设的帧格式组帧；步骤12，按照帧格式将bit(比特)位通过打开、关闭光模块的方式发送出去；其中bit为0：关闭光模块，由无光状态表示二进制0；bit为1：打开光模块发送光信号，由有光状态表示二进制1。
BBU接收流程可以包括：步骤21，通过检测有光、无光的光信号接收bit数据；步骤22，按照预设的帧格式将bit数据还原为字节数，即得到RRU诊断信息；步骤23，校验通过，将得到的RRU诊断信息保存，待取用。
上述流程的效果，如图4所示。
实施例二
本发明实施例提供一种光链路诊断方法，如图5所示，所述方法包括：S201，与所述对端设备构建光信号通信链路；S202，根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备。
本发明实施例可以在由远端射频模块RRU构成的本端设备中，对端设备可以是室内基带处理单元BBU。
在本发明实施例的一些实施方式中，所述根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备，包括：获取所述本端设备的诊断信息；在所述光信号通信链路，按照预设的帧格式，将所述本端设备的诊断信息的比特数据通过光信号发送给所述对端设备。
在本发明实施例的一些实施方式中，所述将所述本端设备的诊断信息的比特数据通过光信号发送给所述对端设备，包括：模拟时序；根据所述时序，将所述比特数据通过光信号发送给所述对端设备。
在本发明实施例的一些实施方式中，所述与所述对端设备构建光信号通信链路，包括：控制开关本端设备的光口，以发送光信号；根据所述光信号与所述对端设备构建光信号通信链路。
在本发明实施例的一些实施方式中，所述方法还包括：将所述光信号通信链路中光信号接收为比特数据；根据所述比特数据，获取对端设备的诊断请求；根据所述诊断请求，触发根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备。
其中，将所述光信号通信链路中光信号接收为比特数据可以包括：模拟时序；根据所述时序，将所述光信号通信链路中光信号接收为比特数据。
其中，根据所述比特数据，获取对端设备的诊断请求可以包括：根据预设的帧格式，将所述比特数据还原为诊断请求。
在本发明实施例的一些实施方式中，与所述对端设备构建光信号通信链路，包括：检测所述对端设备发出的光信号；根据所述光信号构建所述光信号通信链路。
本发明实施例在具体实现是可以参阅实施例一，具有相应的技术效果。
实施例三
为了使实施例一和实施例二更加清楚，本发明实施例提供一种光链路诊断器，主要通过软件模块的方式，描述BBU和RRU之间的交互；在实施例一和 实施例二的具体实现过程中，相应的技术细节可以参阅本实施例；所述诊断器在BBU-RRU断链情况下，借助特殊低速通道对光链路进行自动诊断的RRU故障分析器，该诊断器在诊断信息的传输过程中，主要通过BBU和RRU两侧CPU模拟UART实现。
例如：BBU建立并维持对RRU的断链信息上传的监测任务，收到断链后RRU发出的起始信号完成RRU诊断信息的接收和储存。
BBU通过检测有光、无光信号接收bit数据，按照BBU和RRU约定的数据编码规则和帧格式，将bit流还原为字节，得到RRU诊断信息。
BBU在接到网管读取数据的消息后，应将断链后RRU、BBU诊断信息及断链前的两侧的诊断信息综合诊断后，将结果信息(光链路诊断信息)传到NMC网管，由NMC网管呈现诊断结果。
详细地，本发明实施例中诊断器可以包括RRU诊断模块、RRU光模块、BBU告警采集模块、BBU诊断模块、BBU光模块，以及NMC的告警监控模块、诊断信息显示模块。各部分在网络中的具体体现如图3示意。其中：RRU光模块：负责光电转换，用于发射相应速率的调制光信号，同时，把BBU侧发送过来的光信号转换成电信号。在断链情况下，通过不停开关光口的方式，对BBU传递RRU诊断信息。
RRU诊断模块：运行于RRU上，用于搜集RRU诊断信息，包括光模块超温、超距离、超速率、光衰过大问题，判定依据如下：超温和光衰过大：本端获取超温和接收功率过低的状态信息，光口接收功率过低，一定程度上和光衰过大等价。
光衰过大判据：获取光模块数字诊断信息，当前(接收侧)光模块接收功率P(RX)，以及对端(发射侧)光模块输出功率P(TX)，求R1＝P(TX)-P(RX)-1dBm(两对熔纤插头)。根据光纤长度计算光纤损耗R2＝光纤长度L*0.5dBm(每KM衰减)，如R1<R2，判定光链路光衰过大。不支持光纤测距的，判定光衰未过大。
超距和超速：本端获取距离和速率信息，进行光纤测距，同时获取OMC服务器配置的光口速率。
超距判断：光纤测距值的值大于单模传输距离的预设倍数，认为超距使用，例如1.5倍。对于不支持光纤测距的情况，认为未超距使用。RRU侧是否超距，使用RRU侧光模块传输距离和BBU侧光纤测距的结果比较。
超速判断：使用硬件给出的光模块支持范围表，实测调整，例如：
a.标称10G光模块允许使用速率：6.144G～10.1376G
b.标称6G光模块允许使用速率：2.4576G～6.144G
BBU光模块：负责光电转换，用于发射相应速率的调制光信号，同时，把RRU侧发送过来的光信号转换成电信号。在断链情况下，通过不停开关光口的方式，对RRU传递信息(例如诊断请求)。
BBU诊断模块：运行于BBU上，用于搜集BBU诊断信息，在光链路断链情况下，BBU下发诊断请求，开始在低速通道采集RRU光口信息，并定时轮询采集是否结束，如果轮询收集失败，回复NMC网管诊断失败；轮询成功，则调用内部接口得到RRU诊断信息，组织应答消息回复给网管。
BBU告警采集模块：运行于BBU上，用于检测BBU-RRU断链告警。在光链路断链情况下，调用BBU诊断模块，得到包括光链路的BBU和RRU侧的诊断信息，即得到光链路断链的光链路诊断信息，并给出具体判据，通过上报光链路断链告警，携带指导性结论，添加在告警信息中，并上报给NMC网管。BBU和RRU多光纤连接时，由于告警是挂在BBU侧光口下，所以只需要获取到此光口连接的RRU光口信息即可。
该诊断器的处理流程如图6所示，包括如下步骤：步骤301：BBU告警采集模块检测到光口接收链路故障由False跳变为True，触发BBU-RRU光链路诊断信息的收集；步骤302：BBU收集本端光口超温、超距、超速率、光衰过大状态信息，并启动一个轮询定时器，通过低速通道收集对接的RRU光口的超温、超距、超速率、光衰过大状态信息；步骤303：如果轮询收集失败，则组织BBU侧诊断结论，作为附加文本上报OMC服务器；轮询成功，得到RRU侧信息，组织完整BBU-RRU光链路诊断结论，将这些信息作为附加文本上报OMC服务器；步骤304：OMC服务器将告警上报到NMC，运维人员在NMC的告警监控模块，观测到“RRU断链告警”后，从告警附加信息中可以得到结论性的指导意见，如果要进一步获取支撑诊断结论的原始数据，选中该告警，执行“RRU故障分析”；步骤305：NMC服务器将“RRU故障分析”请求发送到OMC服务器，OMC构造BBU-RRU链路诊断请求，发送至BBU；步骤306：BBU诊断模块通过低速通道收集本端光口和对接的RRU光口的诊断原始数据，这些数据可以辅助光链路故障定位，包括：光口位置、光纤测距、光口配置速率、正常串行速率、(9um)单模光纤km级传输距离、(9um)单模光纤100m级传输距离、厂商名称、器件型号、激光波长、传输速率偏差上限、传输速率偏差下限、器件条码、生产日期、支持的数字诊断类型、收发器温度、收发器电压值、TX偏置电流、TX发送功率、RX接收功率、远端设备型号、远端设备整机SN、远端设备大版本号、 远端设备上一次复位原因、远端设备输入电压、远端设备LCV误码累计。
步骤307：BBU诊断模块将收集完毕的诊断原始数据返回给OMC服务器，OMC服务器进一步返回给NMC，运维人员在NMC诊断信息显示模块可以查看到诊断原始数据，以辅助排查光链路故障。
步骤308：运维人员根据光链路诊断信息进行故障排查，当故障消除后，NMC告警监控模块的“RRU断链告警”消失，BBU-RRU链路恢复高速通信。
本发明实施例提供了一种BBU-RRU断链情况下的光链路自动诊断方法，该方法是在BBU-RRU的高速通信通道已断的情况下，通过开关BBU、RRU光口的方式构建一条低速通信通道，以传输重要的光链路诊断信息，帮助运维人员缩小故障排查范围，准确定位问题，迅速修复光链路故障。
实施例四
本发明实施例提供一种室内基带处理单元，所述室内基带处理单元包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如实施例一至实施例三中用于BBU侧的任意一项所述方法的步骤。
实施例五
本发明实施例提供一种远端射频模块，所述远端射频模块包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如实施例一至实施例三中用于RRU侧的中任意一项所述方法的步骤。
实施例六
本发明实施例提供一种光链路诊断器，所述诊断器包括存储器和处理器，所述存储器存储有第一计算机程序和第二计算机程序；所述处理器执行所述第一计算机程序，以实现如实施例一至实施例三中用于BBU侧的任意一项所述方法的步骤；所述处理器执行所述第二计算机程序，以实现如实施例一至实施例三中用于RRU侧的中任意一项所述方法的步骤。
实施例七
本发明实施例提供一种计算机可读存储介质，其中，所述存储介质存储有第一计算机程序和/或第二计算机程序；所述第一计算机程序可被至少一个处理器执行，以实现如实施例一至实施例三中用于BBU侧的任意一项所述方法的步骤；所述第二计算机程序可被至少一个处理器执行，以实现如实施例一至实施例三中用于RRU侧的中任意一项所述方法的步骤。
需要说明的是，实施例四至实施例七在具体实现时，可以参阅上述各个实施例，具有相应的技术效果。
实施例八
本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任意方法实施例中的方法。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。

Claims (14)

  1. 一种光链路诊断方法，其中，所述方法包括：
    监测到与对端设备之间光链路的断链；
    与所述对端设备构建光信号通信链路；
    根据所述光信号通信链路，获取所述对端设备的诊断信息。
  2. 如权利要求1所述的方法，其中，所述根据所述光信号通信链路，获取所述对端设备的诊断信息，包括：
    将所述光信号通信链路中光信号接收为比特数据；
    根据所述比特数据，确定所述对端设备的诊断信息。
  3. 如权利要求2所述的方法，其中，所述将所述光信号通信链路中光信号接收为比特数据，包括：
    模拟时序；
    根据所述时序，将所述光信号通信链路中光信号接收为比特数据。
  4. 如权利要求2所述的方法，其中，所述根据所述比特数据，确定所述对端设备的诊断信息，包括：
    根据预设的帧格式，将所述比特数据还原为所述对端设备的诊断信息。
  5. 如权利要求1所述的方法，其中，所述与所述对端设备构建光信号通信链路，包括：
    检测所述对端设备发出的光信号；
    根据所述光信号构建所述光信号通信链路。
  6. 如权利要求1-5中任意一项所述的方法，其中，所述本端设备为室内基带处理单元，所述对端设备为远端射频模块；
    所述方法还包括：
    获取本端设备的诊断信息；
    根据所述本端设备的诊断信息和所述对端设备的诊断信息，确定所述光链路断链的光链路诊断信息；
    通过操作维护中心，将所述断链诊断信息透传给网络管理中心。
  7. 一种光链路诊断方法，其中，所述方法包括：
    与所述对端设备构建光信号通信链路；
    根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备。
  8. 如权利要求7所述的方法，其中，所述根据所述光信号通信链路，将本端设备的诊断信息发送给所述对端设备，包括：
    获取所述本端设备的诊断信息；
    在所述光信号通信链路，按照预设的帧格式，将所述本端设备的诊断信息的比特数据通过光信号发送给所述对端设备。
  9. 如权利要求8所述的方法，其中，所述将所述本端设备的诊断信息的比特数据通过光信号发送给所述对端设备，包括：
    模拟时序；
    根据所述时序，将所述比特数据通过光信号发送给所述对端设备。
  10. 如权利要求7-9中任意一项所述的方法，其中，所述本端设备为远端射频模块，所述对端设备为室内基带处理单元；
    所述与所述对端设备构建光信号通信链路，包括：
    控制开关本端设备的光口，以发送光信号；
    根据所述光信号与所述对端设备构建光信号通信链路。
  11. 一种室内基带处理单元，其中，所述室内基带处理单元包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如权利要求1-6中任意一项所述方法的步骤。
  12. 一种远端射频模块，其中，所述远端射频模块包括存储器和处理器，所述存储器存储有光链路诊断计算机程序，所述处理器执行所述计算机程序，以实现如权利要求7-10中任意一项所述方法的步骤。
  13. 一种光链路诊断器，其中，所述诊断器包括存储器和处理器，所述存储器存储有第一计算机程序和第二计算机程序；
    所述处理器执行所述第一计算机程序，以实现如权利要求1-6中任意一项所 述方法的步骤；
    所述处理器执行所述第二计算机程序，以实现如权利要求7-10中任意一项所述方法的步骤。
  14. 一种计算机可读存储介质，其中，所述存储介质存储有第一计算机程序和/或第二计算机程序；
    所述第一计算机程序可被至少一个处理器执行，以实现如权利要求1-6中任意一项所述方法的步骤；
    所述第二计算机程序可被至少一个处理器执行，以实现如权利要求7-10中任意一项所述方法的步骤。
PCT/CN2019/112600 2018-12-05 2019-10-22 光链路诊断方法、及相应的设备和存储介质 WO2020114126A1 (zh)

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