CN101111046A - Method and system for locating noise problems - Google Patents
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Abstract
一种杂音问题定位方法和系统。所述方法包括:在语音数据流经通讯系统中多个接口的情况下,分别获取所述多个接口中流经的所述语音数据;将所述分别获取的语音数据分别转换为相同格式的语音数据;对所述相同格式的各语音数据进行比较,根据比较结果确定导致杂音的语音帧;根据所述确定出的导致杂音的语音帧进行问题定位。本发明实施方式可及时、准确的检测出导致杂音的异常帧,并能够根据该异常帧及时、准确进行问题定位,从而提高了杂音问题定位准确性,提高了杂音问题定位效率,提高了设备的可维护性。
A noise problem location method and system. The method includes: when the voice data flows through multiple interfaces in the communication system, respectively acquiring the voice data flowing through the multiple interfaces; converting the respectively acquired voice data into voices of the same format Data; comparing each speech data in the same format, and determining the speech frame causing the noise according to the comparison result; and locating the problem according to the determined speech frame causing the noise. The embodiment of the present invention can timely and accurately detect the abnormal frame that causes the noise, and can timely and accurately locate the problem according to the abnormal frame, thereby improving the accuracy of the noise problem location, improving the noise problem location efficiency, and improving the reliability of the equipment. maintainability.
Description
技术领域technical field
本发明涉及网络通讯技术领域,具体涉及一种杂音问题定位方法和系统。The invention relates to the technical field of network communication, in particular to a method and system for locating noise problems.
背景技术Background technique
随着移动通信技术的不断发展,移动用户对语音质量等通信性能方面的要求越来越高。因此,在出现语音质量等通信性能方面的问题时,需要根据杂音迅速定位问题所在,从而有利于解决杂音问题。With the continuous development of mobile communication technology, mobile users have higher and higher requirements on communication performance such as voice quality. Therefore, when a communication performance problem such as voice quality occurs, it is necessary to quickly locate the problem according to the noise, so as to help solve the noise problem.
目前,杂音问题定位方法主要包括如下两种:At present, the noise problem location methods mainly include the following two types:
方法一、利用测量报告。Method 1. Use the measurement report.
获取测量报告中的误码率,根据误码率可以确定出杂音是否由无线环境恶劣导致,从而可以推测出空口质量是否有问题。Obtain the bit error rate in the measurement report. According to the bit error rate, it can be determined whether the noise is caused by the bad wireless environment, so that it can be inferred whether there is a problem with the air interface quality.
方法二、利用语音监听工具监听语音。Method 2: Use the voice monitoring tool to monitor the voice.
维护人员利用语音监听工具在设备之间的接口处监听通话过程,维护人员判断监听到的语音是否有杂音,并根据判断结果来确定该接口以上或以下是否存在问题。The maintenance personnel use the voice monitoring tool to monitor the call process at the interface between the devices. The maintenance personnel judge whether there is any noise in the monitored voice, and determine whether there is a problem above or below the interface according to the judgment result.
在对现有技术的研究和实践过程中,发明人发现上述现有技术至少存在如下问题:During the research and practice of the prior art, the inventor found that the above prior art has at least the following problems:
方法一只能够推测出空口质量是否存在问题。而且由于测量报告是一个统计后指标,因此,利用测量报告不能够确定出杂音是由哪个TDMA(TimeDivision Multiple Access,时分多址)帧引起的,进而也就不能够针对引起杂音的TDMA帧来进行后续的问题定位。The only method is to guess whether there is a problem with the air quality. And because the measurement report is a post-statistical index, therefore, it is impossible to determine which TDMA (TimeDivision Multiple Access, Time Division Multiple Access) frame the noise is caused by using the measurement report, and then it is not possible to perform an operation on the TDMA frame causing the noise. Subsequent problem positioning.
方法二需要由人工来判断是否存在杂音,不同人对杂音的感觉不同,会导致不同的判断结果,从而使杂音问题定位不准确。而且,人工的参与会导致杂音问题定位效率低,从而使设备的可维护性差。另外,语音监听工具的实现原理与实际通讯系统中网络设备的实现原理不完全相同,从而进一步使杂音问题定位不准确。例如,目前通常使用的语音监听工具可以将A接口、Abis接口的语音帧实时转换成语音,现有的语音监听工具在转换过程中不会丢弃标识为IDLE的语音帧,但是,实际通讯系统中的BTS(Base Transceiver Station,基站收发信台)会丢弃标识为IDLE的语音帧。也许BTS丢弃的语音帧导致了杂音,但是,利用语音监听工具却不能够检测到杂音。Method 2 needs to manually judge whether there is noise. Different people have different feelings about noise, which will lead to different judgment results, so that the positioning of noise problems is not accurate. Moreover, manual participation will lead to low noise problem location efficiency, thus making the maintainability of the equipment poor. In addition, the implementation principle of the voice monitoring tool is not exactly the same as that of the network equipment in the actual communication system, which further makes the positioning of the noise problem inaccurate. For example, currently commonly used voice monitoring tools can convert the voice frames of the A interface and the Abis interface into voice in real time. The existing voice monitoring tools will not discard voice frames marked as IDLE during the conversion process. However, in actual communication systems The BTS (Base Transceiver Station, Base Transceiver Station) will discard the voice frame marked as IDLE. Perhaps the voice frames dropped by the BTS are causing the noise, but the noise cannot be detected with voice monitoring tools.
发明内容Contents of the invention
本发明实施方式提供一种杂音问题定位方法和系统,可及时、准确的检测出导致杂音的异常帧,并能够根据该异常帧及时、准确进行问题定位,从而提高了杂音问题定位准确性,提高了杂音问题定位效率,提高了设备的可维护性。Embodiments of the present invention provide a method and system for locating noise problems, which can timely and accurately detect abnormal frames that cause noise, and can promptly and accurately locate problems based on the abnormal frames, thereby improving the accuracy of noise problem location and improving This improves the efficiency of locating noise problems and improves the maintainability of equipment.
本发明实施方式提供的一种杂音问题定位方法,包括:A method for locating noise problems provided by an embodiment of the present invention includes:
在语音数据流经通讯系统中多个接口的情况下,分别获取所述多个接口中流经的所述语音数据;In the case that the voice data flows through multiple interfaces in the communication system, respectively acquiring the voice data flowing through the multiple interfaces;
将所述分别获取的语音数据分别转换为相同格式的语音数据;Converting the respectively acquired voice data into voice data of the same format;
对所述相同格式的各语音数据进行比较,根据比较结果确定导致杂音的语音帧;Comparing each voice data in the same format, determining the voice frame that causes noise according to the comparison result;
根据所述确定出的导致杂音的语音帧进行问题定位。Problem location is performed according to the determined speech frames that cause noise.
本发明实施方式还提供一种杂音定位系统,应用于语音数据流经多个接口的通讯系统中,所述系统包括:The embodiment of the present invention also provides a noise positioning system, which is applied to a communication system in which voice data flows through multiple interfaces, and the system includes:
多个获取模块,一个获取模块获取一个接口中流经的语音数据;Multiple acquisition modules, one acquisition module acquires voice data flowing through an interface;
一个或多个转换模块,用于将所述获取模块分别获取的语音数据分别转换为相同格式的语音数据,并输出;One or more conversion modules, used to convert the voice data respectively acquired by the acquisition module into voice data of the same format, and output them;
比较模块,用于对所述相同格式的语音数据分别进行比较,并输出比较结果;A comparison module, used to compare the voice data in the same format respectively, and output the comparison result;
定位模块,用于根据比较模块输出的比较结果确定导致杂音的语音帧,并根据所述确定出的导致杂音的语音帧进行问题定位。The locating module is configured to determine the speech frame causing the noise according to the comparison result output by the comparing module, and locate the problem according to the determined speech frame causing the noise.
通过上述技术方案的描述可知,通过对不同接口获得的语音数据进行比较,例如进行比特级比较,可及时、准确的检测出导致杂音的异常帧;通过根据该异常帧进行问题定位,可及时、准确的确定出导致杂音出现的原因,从而提高了杂音问题定位准确性,提高了杂音问题定位效率,最终提高了设备的可维护性。From the description of the above technical solution, it can be seen that by comparing the voice data obtained by different interfaces, such as bit-level comparison, the abnormal frame that causes noise can be detected in time and accurately; by positioning the problem according to the abnormal frame, it can be timely, Accurately determine the cause of the noise, thereby improving the accuracy of noise problem location, improving the noise problem location efficiency, and finally improving the maintainability of the equipment.
附图说明Description of drawings
图1是本发明实施方式的获取流经各接口中的语音数据示意图;Fig. 1 is a schematic diagram of obtaining voice data flowing through each interface in an embodiment of the present invention;
图2是本发明实施方式的比较流经各接口中的语音数据示意图;Fig. 2 is a schematic diagram of voice data that compares flows through each interface according to an embodiment of the present invention;
图3是本发明实施方式的语音数据比特级比较结果示意图;Fig. 3 is the schematic diagram of the bit-level comparison result of voice data in the embodiment of the present invention;
图4是本发明实施方式的还原后的语音帧的波形对比示意图。FIG. 4 is a schematic diagram of waveform comparison of restored speech frames according to an embodiment of the present invention.
具体实施方式Detailed ways
在通讯系统的终端通话过程中,语音数据往往会流经通讯系统中的多个接口,而且语音数据的最小单位一般为语音帧。如果获得了语音数据流经的多个接口中的语音数据,并对各接口中流经的语音数据进行比较,例如进行比特级对比,则能够确定出不同接口的语音数据中的发生了变化的语音帧,从而能够准确的定位导致杂音的语音帧;利用导致杂音的语音帧能够准确的定位导致杂音的语音帧形成的原因,从而能够对杂音问题进行准确定位。During a terminal call in a communication system, voice data often flows through multiple interfaces in the communication system, and the smallest unit of voice data is generally a voice frame. If the voice data in multiple interfaces through which the voice data flows is obtained, and the voice data flowing through each interface is compared, for example, a bit-level comparison is performed, the changed voice in the voice data of different interfaces can be determined frame, so that the speech frame that causes the noise can be accurately located; the cause of the speech frame that causes the noise can be accurately located by using the speech frame that causes the noise, so that the noise problem can be accurately located.
下面对本发明实施方式的杂音问题定位方法进行说明。The noise problem locating method according to the embodiment of the present invention will be described below.
首先,需要获取通讯系统的多个接口中流经的语音数据。这里的接口可以为两个、三个、四个或者更多数量的接口。接口可以为终端与基站之间的接口、可以为基站与语音数据流经的网络侧设备之间的接口、也可以为语音数据流经的网络侧设备之间的接口等,例如,接口可以为Um接口、Abis接口、Asub接口以及A接口等等;当应用到WCDMA系统中时,所述接口也可以是WCDMA系统中的Uu接口、Iu接口、Iur接口、Iub接口等。这里的接口在不同的通讯系统中会有所不同,本发明实施方式不限制接口的具体表现形式,也不限制多个接口的数量。First, it is necessary to obtain voice data flowing through multiple interfaces of the communication system. The interfaces here can be two, three, four or more interfaces. The interface may be an interface between the terminal and the base station, an interface between the base station and the network-side device through which the voice data flows, or an interface between the network-side devices through which the voice data flows, etc. For example, the interface may be Um interface, Abis interface, Asub interface, A interface, etc.; when applied to a WCDMA system, the interface may also be a Uu interface, an Iu interface, an Iur interface, an Iub interface, etc. in a WCDMA system. The interfaces here are different in different communication systems, and the embodiment of the present invention does not limit the specific expression form of the interfaces, nor does it limit the number of multiple interfaces.
获取接口中流经的语音数据的方式有多种,本发明实施方式可以采用现有的各种语音数据抓取手段,包括市场上专业的语音数据抓取工具来获取接口中流经的语音数据,也可以定制化的实现语音数据抓取。本发明实施方式不限制获取接口中流经语音数据的具体实现过程。There are many ways to obtain the voice data flowing through the interface. The implementation of the present invention can use various existing voice data capture means, including professional voice data capture tools on the market to obtain the voice data flowing through the interface. Voice data capture can be customized. The embodiment of the present invention does not limit the specific implementation process of acquiring the voice data flowing through the interface.
在获取了多个接口中流经的语音数据后,需要将获取到的各语音数据转换为统一格式的语音数据,以方便进行语音数据的对比,这种对比通常是比特级的。这里的统一格式可以根据语音数据对比的具体需求来确定,例如,统一格式可以为语音帧自动比较工具进行语音对比时支持的格式。如果语音帧自动比较工具具有语音数据格式转换功能,则本发明实施方式中的语音数据格式转换过程可以由语音帧自动比较工具来实现。当然,语音数据格式转换过程也可以由独立于语音帧自动比较工具的其他设备来实现。本发明实施方式可以采用现有的支持语音数据格式转换的多种工具来实现语音数据格式转换,本发明实施方式不限制语音数据格式转换的具体实现过程,也不限制格式转换后的语音数据的具体格式。After acquiring the voice data flowing through multiple interfaces, it is necessary to convert the acquired voice data into voice data in a unified format, so as to facilitate the comparison of the voice data, which is usually at the bit level. The unified format here can be determined according to the specific requirements of voice data comparison. For example, the unified format can be a format supported by the voice frame automatic comparison tool for voice comparison. If the speech frame automatic comparison tool has a speech data format conversion function, the speech data format conversion process in the embodiment of the present invention can be realized by the speech frame automatic comparison tool. Of course, the voice data format conversion process can also be implemented by other devices independent of the voice frame automatic comparison tool. The embodiment of the present invention can adopt the various tools of existing support voice data format conversion to realize voice data format conversion, the embodiment of the present invention does not limit the specific implementation process of voice data format conversion, does not limit the voice data after the format conversion specific format.
上述格式转换后的语音数据可以分别存储在不同的语音文件中,即一个接口对应一个语音文件。当然,多个接口也可以对应一个语音文件,例如多个接口分别对应的格式转换后的语音数据分段存储在同一个语音文件中。The voice data converted from the above format can be stored in different voice files, that is, one interface corresponds to one voice file. Of course, multiple interfaces may also correspond to one voice file, for example, the format-converted voice data corresponding to multiple interfaces are stored in segments in the same voice file.
在进行了语音数据格式转换后,需要对具有相同格式的、不同接口对应的语音数据进行比特级比较。比较过程可以为两两比较,例如,接口1、接口2、接口3分别对应格式转换后的语音数据1、语音数据2、语音数据3,两两比较可以为语音数据1和语音数据2、以及语音数据2与语音数据3的比较,两两比较也可以为语音数据1和语音数据2、以及语音数据1和语音数据3的比较。这里的比特级比较可以利用现有的各种语音帧自动比较工具,例如,利用滑窗方式对相同格式的各语音数据进行逐比特比较。本发明实施方式不限制语音数据比特级比较的具体实现过程。After voice data format conversion is performed, it is necessary to perform bit-level comparison on voice data corresponding to different interfaces with the same format. The comparison process can be a pairwise comparison. For example, interface 1, interface 2, and interface 3 respectively correspond to voice data 1, voice data 2, and voice data 3 after format conversion, and the pairwise comparison can be voice data 1 and voice data 2, and The comparison between the voice data 2 and the voice data 3 may also be the comparison between the voice data 1 and the voice data 2, and the voice data 1 and the voice data 3. The bit-level comparison here can use various existing automatic speech frame comparison tools, for example, use a sliding window method to compare each speech data in the same format bit by bit. The embodiment of the present invention does not limit the specific implementation process of the voice data bit-level comparison.
本发明实施方式进行语音数据比特级比较的原则可以包括:在上行方向,可以以靠近终端的接口对应的格式转换后的语音数据作为比较的基准;在下行方向,可以以靠近核心网侧的接口对应的格式转换后的语音数据作为比较的基准。The principle of bit-level comparison of voice data in the embodiments of the present invention may include: in the uplink direction, the format-converted voice data corresponding to the interface close to the terminal can be used as a benchmark for comparison; in the downlink direction, the interface close to the core network side can be used The corresponding format-converted speech data is used as a benchmark for comparison.
通过比特级比较可以确定出语音数据的不同,例如,可以确定出是否丢失了语音帧、及语音帧中的比特位是否发生改变、是否出现了拼接帧等异常现象,从而可以根据比特级比较结果得出的异常现象直接确定出导致杂音的语音帧。当然,也可以将发生异常现象的语音帧还原为语音,然后,根据还原为语音的波形确定出发生异常现象的语音帧是否为导致杂音的语音帧。The difference of voice data can be determined by bit-level comparison. For example, it can be determined whether a voice frame is lost, whether the bits in the voice frame have changed, and whether abnormal phenomena such as splicing frames have occurred, so that the results can be compared according to the bit level. The resulting anomalies directly determine the speech frame causing the noise. Certainly, it is also possible to restore the speech frame in which the abnormal phenomenon occurs to speech, and then determine whether the speech frame in which the abnormal phenomenon occurs is a speech frame causing noise according to the waveform restored to speech.
在确定出导致杂音的语音帧后,可以根据导致杂音的语音帧确定出产生杂音的语音帧的网元,从而对杂音问题进行准确的定位。例如,在下行方向,A接口对应的格式转换后的语音帧、Asub接口对应的格式转换后的语音帧、以及Abis接口对应的格式转换后的语音帧均相同,但是,Um接口对应的格式转换后的语音帧与其它接口对应的格式转换后的语音帧不同,则基本可以确定导致杂音的语音帧是BTS产生的,BTS出现了问题。After the noise-causing voice frame is determined, the network element of the noise-causing voice frame can be determined according to the noise-causing voice frame, so as to accurately locate the noise problem. For example, in the downlink direction, the format-converted speech frames corresponding to the A interface, the format-converted speech frames corresponding to the Asub interface, and the format-converted speech frames corresponding to the Abis interface are the same, but the format-converted speech frames corresponding to the Um interface If the converted speech frame is different from the format-converted speech frame corresponding to other interfaces, it can be basically determined that the speech frame causing the noise is generated by the BTS, and a problem has occurred in the BTS.
下面以两个具体的杂音问题定位为例、结合附图1、2、3、4对本发明实施方式提供的杂音问题定位方法进行详细说明。The method for locating the noise problem provided by the embodiments of the present invention will be described in detail below by taking two specific noise problem locating as examples and referring to the accompanying drawings 1 , 2 , 3 , and 4 .
杂音问题定位例1、缺帧杂音问题。Noise problem positioning example 1, frame missing noise problem.
图1中的通讯系统包括:MS(Mobile Station,移动台)、BTS、BSC(BaseStation Controller,基站控制器)和MSC/VLR(Mobile services Switching Centre或Mobile Switching Centre,移动交换中心/Visitor Location Register,拜访用户位置寄存器)。MS与基站之间的接口为UM接口,BTS与BSC之间的接口为Abis接口,BSC与TC(Transcoder,码变换器)板之间的接口为Asub接口,TC和MSC/VLR之间的接口为A接口,Asub接口为内部接口。在MS通讯过程中,在上行方向,MS发送的语音数据通过Um接口传输至基站,基站将接收到的语音数据传输至BTS,BTS通过Abis接口将语音数据传输至BSC,BSC通过Asub接口和A接口将语音数据传输至MSC/VLR。也就是说,上行方向的语音数据流经Um接口、Abis接口、Asub接口和A接口。下行方向的语音数据的流向与上行方向的语音数据的流向正好相反。The communication system in Figure 1 includes: MS (Mobile Station, mobile station), BTS, BSC (BaseStation Controller, base station controller) and MSC/VLR (Mobile services Switching Center or Mobile Switching Centre, Mobile Switching Center/Visitor Location Register, Visiting Subscriber Location Register). The interface between MS and base station is UM interface, the interface between BTS and BSC is Abis interface, the interface between BSC and TC (Transcoder, code converter) board is Asub interface, and the interface between TC and MSC/VLR It is the A interface, and the Asub interface is the internal interface. During MS communication, in the uplink direction, the voice data sent by the MS is transmitted to the base station through the Um interface, and the base station transmits the received voice data to the BTS, and the BTS transmits the voice data to the BSC through the Abis interface, and the BSC communicates with the A through the Asub interface. The interface transmits voice data to MSC/VLR. That is to say, voice data in the uplink direction flows through the Um interface, the Abis interface, the Asub interface and the A interface. The flow direction of the voice data in the downlink direction is just opposite to the flow direction of the voice data in the uplink direction.
本发明实施方式可以在UM接口、Abis接口、Asub接口和A接口分别抓取语音数据,可以通过设置语音数据抓取工具来实现。这里的语音数据抓取工具如Huawei T300、NetHawk、K1205、K1297、Huawei MTB等等。例如利用抓取工具Huawei T300来抓取流经Um接口的语音帧,即语音数据;利用NetHawk或K1205或K1297或Huawei MTB来分别抓取流经Abis接口、Asub口和A接口的语音帧。The embodiment of the present invention can capture voice data at the UM interface, the Abis interface, the Asub interface and the A interface respectively, which can be realized by setting a voice data capture tool. The voice data capture tools here are Huawei T300, NetHawk, K1205, K1297, Huawei MTB and so on. For example, use the capture tool Huawei T300 to capture voice frames flowing through the Um interface, that is, voice data; use NetHawk or K1205 or K1297 or Huawei MTB to capture voice frames flowing through the Abis interface, Asub interface, and A interface respectively.
在利用语音数据抓取工具分别获取到流经UM接口、Abis接口、Asub接口和A接口的语音数据后,对流经各接口的语音数据分别进行格式转换。例如根据GSM08.60或者08.61协议将流经Um接口、Abis接口、Asub接口、A接口的语音数据转换成统一的TRAU帧格式或PCM码流格式的语音数据。转换后的语音数据可以以表1所示的方式存储在各接口分别对应的语音文件中。After the voice data flowing through the UM interface, the Abis interface, the Asub interface and the A interface are obtained respectively by using the voice data capture tool, format conversion is performed on the voice data flowing through each interface. For example, according to the GSM08.60 or 08.61 protocol, the voice data flowing through the Um interface, the Abis interface, the Asub interface, and the A interface are converted into voice data in a unified TRAU frame format or PCM code stream format. The converted voice data can be stored in the voice files corresponding to each interface in the manner shown in Table 1.
表1语音文件中存储的语音数据Voice data stored in the voice file in Table 1
表1中,字符“#”表示该行为注释行,字符“@”表示解释字段,即对语音数据中的字段进行解释。如果语音帧中需要增加扩展字段时,只需在上述表1所示的语音文件中增加“@”头即可。In Table 1, the character "#" indicates the comment line of the behavior, and the character "@" indicates the explanation field, which is to explain the fields in the voice data. If an extension field needs to be added in the speech frame, it is only necessary to add the "@" header to the speech file shown in Table 1 above.
表1中各个字段的含义如表2所示:The meaning of each field in Table 1 is shown in Table 2:
表2Table 2
在将流经各接口的语音数据转换为统一格式、并存储在语音文件中之后,可以利用现有的语音帧自动比较工具对语音文件中的、统一格式的语音数据进行自动比特级对比,或者也可以按接收到的用户指令进行比特级对比。如图2中,将Um接口对应的格式转换后的语音帧、Abis接口对应的格式转换后的语音帧、Asub接口对应的格式转换后的语音帧和A接口对应的格式转换后的语音帧分别输入语音帧自动比较工具中。针对上行方向的语音帧,语音帧自动比较工具可以将Abis接口、Asub接口以及A接口对应的格式转换后的语音帧分别与Um接口对应的格式转换后的语音帧进行同步,即进行自动搜索定位处理。然后,语音帧自动比较工具利用滑窗技术将Abis接口、Asub接口以及A接口对应的格式转换后的语音帧分别与Um接口对应的格式转换后的语音帧进行逐比特比较。语音帧自动比较工具输出其比较出的不一致语音帧的位置、以及不一致的语音帧的内容。After the voice data flowing through each interface is converted into a unified format and stored in a voice file, the existing voice frame automatic comparison tool can be used to perform automatic bit-level comparison of the voice data in the voice file and in a unified format, or Bit-level comparisons may also be performed on received user commands. As shown in Fig. 2, the voice frame after the format conversion corresponding to the Um interface, the voice frame after the format conversion corresponding to the Abis interface, the voice frame after the format conversion corresponding to the Asub interface, and the voice frame after the format conversion corresponding to the A interface are respectively Input into speech frame automatic comparison tool. For voice frames in the uplink direction, the voice frame automatic comparison tool can synchronize the format-converted voice frames corresponding to the Abis interface, Asub interface, and A interface with the format-converted voice frames corresponding to the Um interface, that is, to automatically search and locate deal with. Then, the voice frame automatic comparison tool compares the format-converted voice frames corresponding to the Abis interface, the Asub interface, and the A interface with the format-converted voice frames corresponding to the Um interface, bit by bit, using the sliding window technology. The speech frame automatic comparison tool outputs the position of the inconsistent speech frame and the content of the inconsistent speech frame.
例如,语音帧自动比较工具输出的比较结果如附图3所示。For example, the comparison result output by the speech frame automatic comparison tool is shown in FIG. 3 .
图3中左侧为Um接口对应的格式转换后的语音帧,图3中右侧为Abis接口对应的格式转换后的语音帧。图3中右侧的IDLE帧是不下发给MS的语音帧,图3中右侧的SPEECH帧是应该下发给MS的语音帧,但是,由于SPEECH帧帧头中的000017f0(下行EFR语音帧的帧头为000017f0)被错误的标记为00001df0,而IDLE帧的帧头为00001df0,从而使基站将SPEECH帧识别为IDLE帧,导致基站将SPEECH帧丢弃。这样,流经Um接口的语音数据中少了一帧。The left side of FIG. 3 is the format-converted speech frame corresponding to the Um interface, and the right side of FIG. 3 is the format-converted speech frame corresponding to the Abis interface. The IDLE frame on the right side in Figure 3 is a voice frame that is not sent to the MS, and the SPEECH frame on the right side in Figure 3 is a voice frame that should be delivered to the MS. However, due to the 000017f0 (downlink EFR voice frame The frame header is 000017f0) is incorrectly marked as 00001df0, and the frame header of the IDLE frame is 00001df0, so that the base station recognizes the SPEECH frame as an IDLE frame, causing the base station to discard the SPEECH frame. In this way, one frame is missing in the voice data flowing through the Um interface.
本发明实施方式可以将比较出的不一致的语音帧转换为PCM格式码流来确认是否出现了杂音。例如,将图3中Abis接口的语音帧和Um接口的语音帧口转换为PCM格式码流,并获得两个PCM格式码流的波形。使用Cool Edit工具输出的两个PCM格式码流的波形如附图4所示。从图4中可以明显看出,Um接口对应的波形为杂音波形。从不一致的语音帧转换出来的声音波形可以明显获知MS端发生了杂音。The embodiments of the present invention can convert the inconsistent speech frames obtained by comparison into PCM format code streams to confirm whether there is noise. For example, convert the voice frame of the Abis interface and the voice frame of the Um interface in Figure 3 into a PCM format code stream, and obtain the waveforms of the two PCM format code streams. The waveforms of the two PCM format streams output using the Cool Edit tool are shown in Figure 4. It can be clearly seen from Fig. 4 that the waveform corresponding to the Um interface is a noise waveform. From the sound waveform converted from the inconsistent speech frames, it can be clearly known that there is noise on the MS side.
在确定出SPEECH帧帧头中的000017f0被错误的标记为00001df0之后,本发明实施方式可以确定出TC板出现了问题。从而及时准确的实现了杂音问题定位。进一步的,本发明实施方式还可以结合GSM0860、0861协议、TRX语音处理模块及TC板处理原理进一步分析导致SPEECH帧帧头被错误标记的原因。After it is determined that 000017f0 in the frame header of the SPEECH frame is incorrectly marked as 00001df0, the embodiment of the present invention may determine that a problem occurs with the TC board. In this way, the positioning of the noise problem can be realized in a timely and accurate manner. Furthermore, the embodiment of the present invention can further analyze the reason why the SPEECH frame header is wrongly marked in combination with the GSM0860, 0861 protocol, TRX voice processing module and TC board processing principle.
针对下行方向的语音帧,语音帧自动比较工具可以将Um接口、Abis接口以及Asub接口对应的格式转换后的语音帧分别与A接口对应的格式转换后的语音帧进行同步,即进行自动搜索定位处理。然后,语音帧自动比较工具利用滑窗技术将Um接口、Abis接口以及Asub接口对应的格式转换后的语音帧分别与A接口对应的格式转换后的语音帧进行逐比特比较。语音帧自动比较工具输出其比较出的不一致语音帧的位置、以及不一致的语音帧的内容。根据语音帧字段比较工具输出的信息确定杂音帧以及确定产生杂音帧的网元的具体实现过程与上述实施例的描述基本相同,在此不再详细说明。For voice frames in the downlink direction, the voice frame automatic comparison tool can synchronize the format-converted voice frames corresponding to the Um interface, Abis interface, and Asub interface with the format-converted voice frames corresponding to the A interface, that is, to automatically search and locate deal with. Then, the speech frame automatic comparison tool compares the format-converted speech frames corresponding to the Um interface, Abis interface, and Asub interface with the format-converted speech frames corresponding to the A interface by using the sliding window technology bit by bit. The speech frame automatic comparison tool outputs the position of the inconsistent speech frame and the content of the inconsistent speech frame. The specific implementation process of determining the noise frame and determining the network element generating the noise frame according to the information output by the voice frame field comparison tool is basically the same as the description of the above embodiment, and will not be described in detail here.
杂音问题定位例2、切换杂音问题。Noise problem positioning example 2, switching noise problem.
本发明实施方式可以在切换的源信道Abis接口、切换的目标信道Abis接口、以及Asub接口分别设置语音数据抓取工具。这里的语音数据抓取工具如NetHawk、K1205、K1297、Huawei MTB等等。In the embodiment of the present invention, voice data grabbing tools can be respectively set on the Abis interface of the switched source channel, the Abis interface of the switched target channel, and the Asub interface. The voice data capture tools here are NetHawk, K1205, K1297, Huawei MTB, etc.
在利用语音数据抓取工具分别获取到流经切换的源信道Abis接口、切换的目标信道Abis接口、以及Asub接口的语音数据后,对流经各接口的语音数据分别进行格式转换。例如根据GSM08.60或者08.61协议将流经Abis接口、Asub接口的语音数据转换成统一的TRAU帧格式或PCM码流格式的语音数据。转换后的语音数据可以以表1所示的方式存储在各接口分别对应的语音文件中。After the voice data flowing through the switched source channel Abis interface, the switched target channel Abis interface, and the Asub interface are respectively obtained by using the voice data capture tool, format conversion is performed on the voice data flowing through each interface. For example, according to the GSM08.60 or 08.61 protocol, the voice data flowing through the Abis interface and the Asub interface are converted into voice data in a unified TRAU frame format or PCM code stream format. The converted voice data can be stored in the voice files corresponding to each interface in the manner shown in Table 1.
在将流经各接口的语音数据转换为统一格式后,利用现有的语音帧自动比较工具对统一格式的语音数据进行自动比特级对比。即,将切换的源信道Abis接口对应的格式转换后的语音帧、切换的目标信道Abis接口对应的格式转换后的语音帧分别与Asub接口对应的格式转换后的语音帧进行同步,并利用滑窗技术进行逐比特的比较。设定语音帧自动比较工具输出其比较出的结果为:After the voice data flowing through each interface is converted into a unified format, an automatic bit-level comparison is performed on the voice data in the unified format by using an existing voice frame automatic comparison tool. That is, the format-converted speech frames corresponding to the switched source channel Abis interface and the format-converted speech frames corresponding to the switched target channel Abis interface are respectively synchronized with the format-converted speech frames corresponding to the Asub interface, and use the sliding The window technique performs a bit-by-bit comparison. Set the voice frame automatic comparison tool to output the comparison result as follows:
在上行方向,切换的源信道Abis接口的最后一个语音帧如表3所示;In the uplink direction, the last voice frame of the switched source channel Abis interface is shown in Table 3;
表3table 3
在上行方向,切换的目标信道Abis接口的第一个语音帧如表4所示;In the uplink direction, the first voice frame of the switched target channel Abis interface is shown in Table 4;
表4Table 4
在上行方向,Asub接口的语音帧如表5所示;In the uplink direction, the voice frame of the Asub interface is shown in Table 5;
表5table 5
需要说明的是:00 00 88 00为TRAU帧的同步头和C比特,表示该TRAU帧为SP帧即语音帧。00 00 88 08为TRAU帧的同步头和C比特,表示该TRAU帧为BFI帧即坏帧。It should be noted that: 00 00 88 00 is the sync header and C bit of the TRAU frame, indicating that the TRAU frame is an SP frame, that is, a voice frame. 00 00 88 08 is the sync header and C bit of the TRAU frame, indicating that the TRAU frame is a BFI frame, that is, a bad frame.
从上述表3、表4、表5可以看出,Asub接口语音帧中的加粗部分即“00 0088 00 A2 29 A9 EE 95 36 F0 23 C”部分与切换的源信道Abis接口的最后一个语音帧中的加粗部分相同;Asub接口语音帧中的斜体部分即“9B FC 09 EA 45 CBFB C7 2B A5 E2 D5 22 BA 3E D7 5B D5 D4 E1 36 81 B6 AD 01 E8 44 8B 41 80 249A FF”与切换的目标信道Abis接口的表示目标信道上的数据和Asub口的第一个语音帧中的斜体部分相同。从而可以得出,表5中Asub接口的语音帧是源信道Abis接口的最后一个语音帧和目标信道Abis接口的第一个语音帧“拼接”而成的。正是这个拼接的语音帧导致MS端出现了杂音。It can be seen from the above Table 3, Table 4, and Table 5 that the bold part in the voice frame of the Asub interface is "00 0088 00 A2 29 A9 EE 95 36 F0 23 C" and the last voice of the switched source channel Abis interface The bold part in the frame is the same; the italic part in the Asub interface voice frame is "9B FC 09 EA 45 CBFB C7 2B A5 E2 D5 22 BA 3E D7 5B D5 D4 E1 36 81 B6 AD 01 E8 44 8B 41 80 249A FF" It is the same as the italic part in the first voice frame of the Abis interface indicating the data on the target channel and the Asub interface of the switched target channel. Therefore, it can be concluded that the speech frame of the Asub interface in Table 5 is formed by "splicing" the last speech frame of the Abis interface of the source channel and the first speech frame of the Abis interface of the target channel. It is this spliced voice frame that causes noise on the MS side.
在确定出流经Asub接口的语音帧为拼接的语音帧后,本发明实施方式可以确定出BSC出现了问题。从而及时准确的实现了杂音问题定位。After determining that the speech frames flowing through the Asub interface are spliced speech frames, the embodiment of the present invention can determine that a problem has occurred in the BSC. In this way, the positioning of the noise problem can be realized in a timely and accurate manner.
上述例2是针对上行方向描述的,针对下行方向,语音帧自动比较工具将切换的源信道Abis接口对应的格式转换后的语音帧、切换的目标信道Abis接口对应的格式转换后的语音帧分别与Asub接口对应的格式转换后的语音帧进行同步,并利用滑窗技术进行逐比特的比较。如果Asub接口对应的格式转换后的某个语音帧在切换的源信道Abis接口对应的格式转换后的语音帧、切换的目标信道Abis接口对应的格式转换后的语音帧中均未出现,则出现丢帧现象,可确定出BSC出现问题。具体实现过程与上行方向的实现过程基本相同,在此不再详细说明。The above example 2 is described for the uplink direction. For the downlink direction, the voice frame automatic comparison tool converts the format-converted voice frames corresponding to the switched source channel Abis interface and the format-converted voice frames corresponding to the switched target channel Abis interface. Synchronize with the format-converted speech frame corresponding to the Asub interface, and use the sliding window technology to perform bit-by-bit comparison. If the format-converted voice frame corresponding to the Asub interface does not appear in the format-converted voice frame corresponding to the switched source channel Abis interface, or the format-converted voice frame corresponding to the switched target channel Abis interface, then the If the frame is lost, it can be determined that there is a problem with the BSC. The specific implementation process is basically the same as the implementation process in the uplink direction, and will not be described in detail here.
下面对本发明实施方式提供的杂音问题定位系统进行说明。The noise problem locating system provided by the embodiments of the present invention will be described below.
本发明实施方式提供的杂音问题定位系统应用于语音数据流经多个接口的通讯系统中,该系统包括:多个获取模块、一个或多个转换模块、比较模块和定位模块。The noise problem locating system provided by the embodiments of the present invention is applied to a communication system in which voice data flows through multiple interfaces, and the system includes: multiple acquisition modules, one or more conversion modules, comparison modules and location modules.
一个获取模块取一个接口中流经的语音数据。这里的接口可以为UM接口、Abis接口、Asub接口和A接口等等。这里的获取模块可以为Huawei T300、NetHawk、K1205、K1297、Huawei MTB等等。An acquisition module acquires voice data flowing through an interface. The interface here may be a UM interface, an Abis interface, an Asub interface, an A interface, and so on. The acquisition modules here can be Huawei T300, NetHawk, K1205, K1297, Huawei MTB, etc.
转换模块将获取模块获取的语音数据分别转换为相同格式的语音数据,并输出。转换模块可以为一个或多个。一个转换模块可以对一个获取模块获取的语音数据进行转换,一个转换模块也可以对多个获取模块获取的语音数据进行转换。如果转换模块只有一个,则该转换模块需要对所有的获取模块获取的语音数据进行格式转换。语音数据转换后的格式可以为其中一个获取模块获取的语音数据的格式,也可以和其中任何一个获取模块获取的语音数据的格式均不相同。转换模块可以和获取模块合设在同一个设备中,也可以独立设置。The conversion module converts the voice data acquired by the acquisition module into voice data of the same format, and outputs them. There can be one or more conversion modules. One conversion module can convert the voice data acquired by one acquisition module, and one conversion module can also convert the voice data acquired by multiple acquisition modules. If there is only one conversion module, the conversion module needs to perform format conversion on the voice data obtained by all the acquisition modules. The format of the converted voice data may be the format of the voice data acquired by one of the acquisition modules, or may be different from the format of the voice data acquired by any one of the acquisition modules. The conversion module and the acquisition module can be set together in the same device, or can be set independently.
比较模块接收转换模块输出的格式转换后的语音数据,并对格式转换后的语音数据进行比特级比较,并输出比较结果。这里的比较可以为两两比较,两两比较的具体实现方式有多种,具体如上述方法实施方式中的描述。这里比特模块可以为现有的语音帧自动比较工具。比较模块进行语音数据比特级比较的原则可以包括:在上行方向,可以以靠近终端的接口对应的格式转换后的语音数据作为比较的基准;在下行方向,可以以靠近核心网侧的接口对应的格式转换后的语音数据作为比较的基准。比较模块输出的比较结果可以为不一致的语音帧的位置、以及不一致的语音帧的内容。The comparison module receives the format-converted voice data output by the conversion module, performs bit-level comparison on the format-converted voice data, and outputs the comparison result. The comparison here may be a pairwise comparison, and there are many specific implementation manners of the pairwise comparison, which are specifically as described in the foregoing method implementation manners. The bit module here can be an automatic comparison tool for existing speech frames. The principles for the comparison module to perform bit-level comparison of voice data may include: in the uplink direction, the converted voice data in the format corresponding to the interface close to the terminal can be used as a benchmark for comparison; in the downlink direction, the voice data corresponding to the interface close to the core network side can be used The format-converted speech data is used as a benchmark for comparison. The comparison result output by the comparison module may be the position of the inconsistent speech frame and the content of the inconsistent speech frame.
定位模块接收比较模块输出的比较结果,定位模块根据比较模块输出的比较结果可以确定出导致杂音的异常帧,并根据确定出的异常帧进行问题定位。定位模块可以根据比较模块输出的比较结果确定出是否丢失了语音帧、及语音帧中的比特位是否发生了改变、是否出现了拼接帧等异常现象,从而定位模块可以根据异常现象直接确定出导致杂音的语音帧。定位模块进行问题定位的具体实现过程如上述方法实施方式的描述。The location module receives the comparison result output by the comparison module, and the location module can determine the abnormal frame that causes the noise according to the comparison result output by the comparison module, and locates the problem according to the determined abnormal frame. The positioning module can determine whether the voice frame is lost, whether the bits in the voice frame have changed, whether there are abnormal phenomena such as splicing frames according to the comparison result output by the comparing module, so that the positioning module can directly determine the cause of the abnormal phenomenon according to the abnormal phenomenon. Noisy speech frames. The specific implementation process of the problem location by the location module is as described in the above method implementation.
定位模块也可以将发生异常现象的语音帧还原为语音,然后,根据还原为语音的波形确定出发生异常现象的语音帧是否为导致杂音的语音帧。此时,定位模块包括:还原子模块。The positioning module can also restore the speech frame with abnormal phenomenon to speech, and then determine whether the speech frame with abnormal phenomenon is a speech frame that causes noise according to the waveform restored to speech. At this time, the positioning module includes: a reduction sub-module.
还原子模块可以将比较模块输出的不相同的语音帧均还原为语音,并输出还原的语音波形。还原子模块输出的语音波形可以为数据文件的形式,同时,还原子模块还可以将语音波形输出到屏幕显示。The restoration sub-module can restore the different speech frames output by the comparison module to speech, and output the restored speech waveform. The voice waveform output by the restoration sub-module can be in the form of a data file, and at the same time, the voice waveform output by the restoration sub-module can be displayed on the screen.
定位模块还可以进一步包括:定位子模块。The positioning module may further include: a positioning sub-module.
定位子模块根据还原子模块输出的语音波形确定导致杂音的语音帧,例如,定位子模块比较图4中的语音帧波形的幅度,在确定出异常语音帧的波形幅度超出另一语音帧波形幅度预定值时,确定出图4右图中的语音帧为导致杂音的语音帧。定位子模块根据确定出的导致杂音的语音帧进行问题定位。定位模块进行问题定位的具体实现过程如上述方法实施方式的描述。The positioning sub-module determines the voice frame that causes noise according to the voice waveform output by the reduction sub-module, for example, the positioning sub-module compares the amplitude of the voice frame waveform in Figure 4, and when it is determined that the waveform amplitude of the abnormal voice frame exceeds the waveform amplitude of another voice frame When the value is predetermined, it is determined that the speech frame in the right diagram of FIG. 4 is the speech frame that causes noise. The locating sub-module performs problem locating according to the determined speech frames that cause noise. The specific implementation process of the problem location by the location module is as described in the above method implementation.
所述定位子模块的功能,也可以通过直接目测等人工手段将异常语音帧的波形和另一语音帧波形幅度预定值进行比较来完成。这个时候系统中可以不专门设置定位子模块。The function of the positioning sub-module can also be accomplished by comparing the waveform of the abnormal speech frame with the predetermined value of the waveform amplitude of another speech frame by manual means such as direct visual inspection. At this time, the positioning sub-module may not be specially set in the system.
虽然通过实施例描绘了本发明,本领域普通技术人员知道,本发明有许多变形和变化而不脱离本发明的精神,本发明的申请文件的权利要求包括这些变形和变化。Although the present invention has been described by way of example, those of ordinary skill in the art know that there are many variations and changes in the present invention without departing from the spirit of the invention, and the claims of the application document of the present invention include these variations and changes.
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Cited By (6)
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WO2011091684A1 (en) * | 2010-02-01 | 2011-08-04 | 中兴通讯股份有限公司 | Device and method for locating voice transmission problems |
CN102324229A (en) * | 2011-09-08 | 2012-01-18 | 中国科学院自动化研究所 | Method and system for detecting abnormal use of voice input equipment |
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WO2011091684A1 (en) * | 2010-02-01 | 2011-08-04 | 中兴通讯股份有限公司 | Device and method for locating voice transmission problems |
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CN102324229B (en) * | 2011-09-08 | 2012-11-28 | 中国科学院自动化研究所 | Method and system for detecting abnormal use of voice input equipment |
CN102695206A (en) * | 2012-05-28 | 2012-09-26 | 大唐移动通信设备有限公司 | Method and device for detecting voice service noise |
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CN111787476A (en) * | 2020-06-12 | 2020-10-16 | Oppo广东移动通信有限公司 | A kind of audio detection method and device, equipment, storage medium |
CN111787476B (en) * | 2020-06-12 | 2022-02-01 | Oppo广东移动通信有限公司 | Audio detection method and device, equipment and storage medium |
CN117395185A (en) * | 2023-12-07 | 2024-01-12 | 广州市炬元互联网科技有限公司 | Data processing method, device, equipment and medium of Asub interface |
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