CN109787814B - Method, system and terminal for positioning communication fault - Google Patents
Method, system and terminal for positioning communication fault Download PDFInfo
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- CN109787814B CN109787814B CN201811593256.2A CN201811593256A CN109787814B CN 109787814 B CN109787814 B CN 109787814B CN 201811593256 A CN201811593256 A CN 201811593256A CN 109787814 B CN109787814 B CN 109787814B
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Abstract
The invention discloses a method, a system and a terminal for positioning a communication fault, and belongs to the technical field of communication. The method comprises the following steps: when a communication fault occurs in a voice channel, a terminal sends a loopback point setting command of a first loopback point to equipment to which the first loopback point belongs through a signaling channel corresponding to the voice channel, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier; sending a test voice signal to the equipment to which the first loopback point belongs through the voice channel; and receiving and playing the test voice signal looped back by the first loop-back point to prompt that a voice channel between the terminal and the first loop-back point is not in fault.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a system, and a terminal for locating a communication fault.
Background
At present, many communication networks operating on the network are distributed communication networks composed of various devices, and program-controlled switching technology is adopted to realize communication. For example, a time-division multiplexing-based program-controlled switching network is built inside many ships, and main devices include network element devices, user terminal devices, radio stations, access devices, and the like. The network element device is used as the core of the whole communication network and can realize the functions of access, transmission and exchange. The user terminal equipment and the access equipment are respectively accessed to the network element equipment. The access device also accesses various types of radio stations through various station interfaces. Under normal condition, user can initiate the connection command of voice service channel through any user terminal equipment, the program control exchange network can automatically complete the time slot connection action in each equipment in the voice channel, and finally, the voice communication is completed with the opposite terminal through radio station.
In the above-mentioned communication networks a complete voice channel covers the voice channel connection from the subscriber terminal equipment to all relevant equipment within the radio station. If audio transceiving faults (such as voice signals are intermittent or voice signals cannot be received by the other party) occur, the faults are difficult to locate due to the fact that numerous equipment manufacturers and communication equipment are involved, and distributed deployment and location dispersion of all the equipment are achieved. At present, when a fault occurs in the program control switching network during operation, a loopback test method is generally adopted to locate the fault. Loopback testing is actually the self-sending and self-receiving testing of signals realized by software or hardware. The general sequence of operations for the loopback test method is: firstly, hardware loopback is carried out on an interface of access equipment by using a hardware short-circuit terminal at a Digital Distribution Frame (DDF), and whether a fault is in the access equipment is judged through the running state or alarm of the access equipment; if the access equipment has no fault, the loopback test is carried out on the transmission network element equipment, and the fault positioning step is as follows: firstly, providing a test instrument, and connecting the test instrument with an interface of network element equipment at a digital distribution frame DDF; secondly, determining a channel and a time slot which need to be looped back, a single board and a loop-back direction by adopting a station-by-station and section-by-section loop-back method, and controlling the equipment single board to finish software loop-back or perform hardware loop-back at an opposite-end digital distribution frame DDF; and thirdly, starting a test instrument to perform loopback test on the internal access of the transmission network element equipment so as to verify the effectiveness of the whole transmission channel in the program control exchange network.
In the process of implementing the invention, the inventor finds that the fault positioning method at least has the following problems: 1. only the internal fault points of the network element equipment are checked, the internal fault points of the access equipment cannot be checked, and the coverage range of fault checking is small; 2. the loopback method can cause the interruption of other normal services, the network element equipment simultaneously provides access, transmission and exchange functions for a plurality of user terminal equipment, when a certain user terminal equipment has communication faults and starts test work, all service bandwidths with correlation in the tested network element equipment are occupied, and the normal communication of other user terminals is influenced; 3. a service channel is established between the test instrument and the network element equipment to complete the test, and as the communication fault occurs when the specific service is realized, and the service channel using scene for the test is different from the service channel using scene corresponding to the communication fault, the fault site is changed, and the purpose of positioning the fault can not be achieved; 4. the maintainer must know the specific route of the service and the hardware connection between the devices clearly, so as to avoid delaying the fault location time and misoperation, and the requirement on the maintainer is higher.
Disclosure of Invention
The embodiment of the invention provides a method, a system and a terminal for positioning communication faults, which can support the fault positioning of each communication device including network element equipment and access equipment on a voice channel, and adopt voice channel resources in service to perform fault positioning, can reserve a fault site, and do not occupy voice channels of other user terminals. The technical scheme is as follows:
in a first aspect, a method for locating a communication fault is provided, where the method includes:
when a voice channel has a communication fault, a terminal sends a loopback point setting command of a first loopback point to a device to which the first loopback point belongs through a signaling channel corresponding to the voice channel, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier;
sending a test voice signal to the equipment to which the first loopback point belongs through the voice channel;
and receiving and playing the test voice signal looped back by the first loop-back point to prompt that a voice channel between the terminal and the first loop-back point is not in fault.
Optionally, the sending a test speech signal to the device to which the first loopback point belongs through the voice channel includes:
receiving a loopback point setting success response fed back by the equipment to which the first loopback point belongs through the signaling channel;
and under the indication that the loopback point successfully answers, sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
Optionally, the sending the test speech signal to the device to which the first loopback point belongs through the voice channel includes:
acquiring the test voice signal, wherein the test voice signal is a single tone signal generated by the terminal or a voice signal recorded by a microphone of the terminal;
and sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
Optionally, the method further comprises:
when the test voice signal looped back by the first loop-back point is not received and played, sending a loop-back point setting command of the second loop-back point to equipment to which the second loop-back point belongs through the signaling channel, wherein the loop-back point setting command of the second loop-back point comprises a current service identifier of the voice channel and an identifier of the second loop-back point, and the loop-back point setting command of the second loop-back point is used for indicating the second loop-back point to loop back the received voice signal through the voice channel indicated by the current service identifier;
sending a test voice signal to the equipment to which the second loopback point belongs through the voice channel;
and receiving and playing the test voice signal looped back by the second loop back point to prompt that a voice channel between the first loop back point and the second loop back point is in failure.
Optionally, the method further comprises:
sending a loopback point cancel command of the first loopback point to the device to which the first loopback point belongs through the signaling channel, wherein the loopback point cancel command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point cancel command of the first loopback point is used for indicating the first loopback point to close a loopback function of the voice channel indicated by the current service identifier;
and receiving a loopback point cancellation success response fed back by the equipment to which the first loopback point belongs through the signaling channel.
Optionally, the method further comprises:
sending a loopback point setting command of a third loopback point to equipment to which the third loopback point belongs through the signaling channel, wherein the loopback point setting command of the third loopback point comprises a current service identifier of the voice channel and an identifier of the third loopback point, and the loopback point setting command of the third loopback point is used for indicating the third loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier;
sending a test voice signal to the equipment to which the third loopback point belongs through the voice channel;
and receiving and playing the test voice signal looped back by the third loop-back point to prompt that a voice channel between the terminal and the third loop-back point is not in fault.
In a second aspect, a terminal is provided, which includes:
a sending module, configured to send, by a terminal through a signaling channel corresponding to a voice channel, a loopback point setting command of a first loopback point to a device to which the first loopback point belongs when a communication failure occurs in the voice channel, where the loopback point setting command of the first loopback point includes a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used to instruct the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier;
the sending module is further configured to send a test speech signal to the device to which the first loopback point belongs through the voice channel;
the receiving module is used for receiving the test voice signal looped back by the first loop back point;
and the playing module is used for playing the test voice signal looped back by the first loop-back point so as to prompt that a voice channel between the terminal and the first loop-back point is not in fault.
Optionally, the sending module is configured to,
receiving a loopback point setting success response fed back by the equipment to which the first loopback point belongs through the signaling channel;
and under the indication that the loopback point successfully answers, sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
Optionally, the sending module is configured to,
acquiring the test voice signal, wherein the test voice signal is a single tone signal generated by the terminal or a voice signal recorded by a microphone of the terminal;
and sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
In a third aspect, a system for locating a communication fault is provided, the system comprising:
the terminals comprise at least one loopback point;
the network element equipment comprises at least one loopback point;
the access equipment comprises at least one loopback point;
the terminal is configured to send a loopback point setting command of a first loopback point to a device to which the first loopback point belongs through a signaling channel corresponding to a voice channel when a communication failure occurs in the voice channel, where the loopback point setting command of the first loopback point includes a current service identifier of the voice channel and an identifier of the first loopback point, and the device to which the first loopback point belongs is any one of the terminal, the network element device, and the access device;
the equipment to which the first loopback point belongs is used for receiving a loopback point setting command of the loopback point and controlling the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier under the indication of the loopback point setting command of the loopback point;
the terminal is further configured to send a test voice signal to the device to which the first loopback point belongs through the voice channel, and receive and play the test voice signal looped back by the first loopback point, so as to prompt that the voice channel between the terminal and the first loopback point is not in fault.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: when a communication fault occurs in a voice channel, a terminal sends a loopback point setting command to equipment to which a first loopback point belongs through a signaling channel corresponding to the voice channel, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier; sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel; if the voice channel between the terminal and the first loopback point fails, the first loopback point cannot loop the test voice signal through the voice channel; therefore, the positioning of the communication fault is directly realized in the voice channel of the fault, the service configuration is not changed temporarily, the fault site can be reserved, the voice channels of other user terminals are not occupied, the fault positioning can be completed quickly and conveniently, and compared with the common fault positioning means at the present stage, a large amount of manpower and material resource investment is reduced; moreover, the equipment to which the first loopback point belongs is not limited to the network element equipment, and fault location of each communication equipment including the network element equipment on the voice channel is supported, so that the efficiency and effectiveness of fault location are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a voice channel provided by an embodiment of the present invention;
fig. 3 and fig. 4 are both flowcharts of a method for locating a communication fault according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
To facilitate understanding of the technical solutions provided by the embodiments of the present invention, a system architecture of the technical solutions is first introduced. The system can be a distributed communication system consisting of a plurality of communication devices and can operate in a communication network inside a ship platform. Illustratively, referring to fig. 1, the system includes M user terminals 101, N network element devices 102, P access devices 103, and Q wireless terminal devices 104.M, N, P, and Q are positive integers.
The user terminal 101 is a terminal-type device having a man-machine operation function. The user can initiate the connection action of the voice service channel on the user terminal 101 through a key, and complete information intercommunication with the opposite terminal user terminal 101 through wireless. The user terminal 101 accesses the Network element device 102 through an ISDN (Integrated Services Digital Network) interface, and can convert a voice input of a user into a Digital signal and send the Digital signal to the Network element device 102. The user may complete the radio station voice communication service on any of the user terminal 101 devices. To implement various functions, the user terminal 101 is equipped with a keypad, MIC (Microphone) input, speaker output, and tone generation modules.
The network element device 102 integrates various functional modules such as switching, inter-station information transmission, user terminal and access device access. The network element device 102 implements inter-station interconnection and information interaction through an optical interface of an STM-N (Synchronous Transport Module level N), completes access of the user terminal 101 through an ISDN interface, and completes access of the access device 103 through an E1 interface. The network element equipment 102 may switch the digitized voice signal input by the user terminal 101 equipment to the corresponding access equipment 103.
The access device 103 is a management agent device of the wireless terminal 104 in the communication system, and accesses the network element device 102 through the E1 interface, and simultaneously provides a plurality of analog audio interfaces, such as four-wire audio, two-wire audio, etc., to connect with various wireless terminals 104, so as to complete information exchange and physical interface electrical conversion of the audio interface from digital voice to analog audio, and forward the voice signal to the wireless terminal 104.
The wireless terminal 104 modulates the voice signals of various analog audio interfaces, and finally transmits the modulated voice signals to the wireless terminal through the antenna, so that the whole voice signal transmission process is completed. The receiving process of the voice is the reverse of the above description.
As mentioned before, the communication interface between the user terminal 101 and the network element device 102 is ISDN. The ISDN interface conforms to ANSI 1.601-1992 and ETSI ETR080 (1996)/ITU-T G.961 2B + D U interface standards. The ISDN interface uses the standard ISDN 2B + D port, including the B channel and the D signal. Wherein, the B channel (64 kbit/s) is a voice channel and is used for transmitting digital voice; the D channel (16 kbit/s) is a signaling channel for transmitting call control signals (control signals transmitted for completing a call connection). The call control protocol to which the call control signals follow may be referred to the standard ISDN interface protocol for establishment and release of voice links. The call control protocol may satisfy the following requirements: for the physical layer, the method conforms to the relevant regulations in GJB3307-98 'military ISDN user-network interface technical requirement' and the information industry department YDN 034.1-97 'ISDN user-network interface specification first layer technical specification'; for the data link layer, the method conforms to the relevant regulations in ITU-T Q.921LAPD protocol ISDN user-network interface link layer protocol; for the network layer, the relevant provisions in ITU-T Q.931 protocol "third layer basic call control protocol" are met. The E1 interface between the network element device 102 and the access device 103 is similar to the ISDN interface protocol in its applicable interface protocol, and the E1 interface includes 30B channels and 1D channel, which is not described in detail herein.
It should be noted that the communication system shown in fig. 1 is an exemplary communication system, and the technical solution provided in the embodiment of the present invention may also be applied to communication systems with other structures.
In the embodiment of the invention, the loopback point of each communication device is reasonably designed according to the functional level and the hardware module of each communication device in the communication system. The user terminal 101 comprises a user interface for communicating with the network element device 102. The loopback point in the user terminal 101 may be provided at the user interface. The network element device 102 includes a user terminal access interface, a switching module, a transmission module, and a wireless terminal access interface, and all the modules are interconnected through a communication bus inside the device. The loopback points in the network element device 102 may be respectively disposed at the user terminal access interface, the switching module, and the wireless terminal access interface. The access device 103 comprises a main control module and an interface control module, which are interconnected through an internal communication bus. Loopback points in the access device 103 may be respectively disposed at the main control module and the interface control module. The wireless terminal 104 includes a wireless interface. No loopback point may be provided in wireless terminal 104. That is, 7 loopback points out of four kinds of communication devices constituting the communication network: loop-back point 1 to loop-back point 7 (see fig. 2). The arrangement of a plurality of loopback points can support the gradual sectional fault detection of the whole voice channel.
Next, a loop-back point in each communication device in the communication system shown in fig. 1 will be described along the transmission path of a voice signal on a voice path. Referring to fig. 2, a typical communication device on a voice path may include a user terminal a-101, a first network element device a-102, a second network element device B-102, an access device a-103, and a wireless terminal a-104. The loopback point in the user terminal A-101 is at the user interface 201; a loopback point in the first network element equipment A-102 is in the user terminal access interface 202 and the switching module 203; a loopback point in the second network element equipment B-102 is at the switching module 204 and the wireless terminal access interface 205; the loopback points in access devices a-103 are at master control module 206 and interface control module 207.
For the hardware implementation of each loopback point, a loopback function of an ASIC (Application Specific Integrated Circuit) chip on each board (communication device) can be selectively utilized. The loopback function of an ASIC chip is typically set by the chip manufacturer for testing the device or board. If the ASIC chip has no time slot level loopback capability, dedicated internal Logic needs to be programmed through a CPLD (Complex Programmable Logic Device) chip to realize loopback control of the loopback point. In the above device, the loop back point of the user interface in the user terminal 101 is realized by controlling the loop back function in the ISDN interface chip MC 145572. MC145572 is a standard ISDN interface transceiver, and can support two application scenarios of LT (Line Termination) and NT (Network Termination), and a set of control Register sets is provided inside a chip, including a loopback control Register BR6 (Byte Register 6; the loopback point of the switching module in the network element device 102 may implement loopback through the time slot crossing function of the switching chip ZL 50023. ZL50023 is a non-blocking switching matrix chip supporting 4096 channels to 4096 channels and can realize large-capacity channel switching. The loop back of the signal can be realized by only switching the input time slot corresponding to the voice signal to the same output time slot. The loopback points of the user terminal access interface and the wireless terminal access interface in the network element device 102 are respectively realized through an ISDN interface chip MC145572 and the loopback function inside the CPLD; the loopback point of the main control module in the access device 103 also realizes loopback through the time slot crossing function of the switching chip ZL 50023. The loopback point of the interface control module in the access device 103 realizes the loopback control function through the internal logic of the CPLD chip on the control board.
Fig. 3 illustrates a method for locating a communication fault according to an embodiment of the present invention, which is suitable for the communication system illustrated in fig. 1. Referring to fig. 3, the method flow includes the following steps.
And step 11, when the voice channel has communication fault, the terminal sends a loopback point setting command of the first loopback point to the equipment to which the first loopback point belongs through the signaling channel corresponding to the voice channel.
The device to which the first loopback point belongs is a device on a voice channel, such as the terminal 101, the network element device 102, or the access device 103 shown in fig. 1. As can be seen from the foregoing, the device to which the first loopback point belongs includes at least one loopback point. The loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier.
And step 12, the terminal sends a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
And step 13, determining whether the test voice signal looped back by the first loop-back point is received.
When receiving the test voice signal looped back by the first loop-back point, executing step 14; when the test voice signal looped back by the first loop-back point is not played, the staff cannot hear the voice played at the end point, and the voice channel between the terminal and the first loop-back point is determined to have a fault.
And step 14, playing the test voice signal looped back by the first loop-back point to prompt that the voice channel between the terminal and the first loop-back point is not in fault.
And the staff hear the voice played by the terminal and determine that the voice channel between the terminal and the first loopback point has no fault.
In this method, the terminal may be the user terminal 101 shown in fig. 1 as an input-output man-machine interface of the loopback control. The device to which the first loopback point belongs may be any one of the user terminal 101, the network element device 102, and the access device 103 shown in fig. 1. The user specifies the identity of the loopback point (e.g., loopback point 1, 1., loopback point 6, or loopback point 7) via the keypad of the user terminal 101 and issues a loopback setting command. After recognizing the command, the user terminal 101 makes a judgment based on the identifier of the loopback point, and if the loopback point corresponding to the identifier of the loopback point is the internal loopback of the device, the voice time slot loopback can be completed through a control instruction in the ISDN interface chip; if the loopback point is inside other equipment, informing the other equipment of completing control through a signaling channel (such as a D channel) of the ISDN interface; the network element device 102 receives the loopback point setting command transmitted from the D channel, then determines that the loopback point corresponding to the identifier of the loopback point is the loopback point inside the device, notifies an internal related module to complete loopback operation if the loopback point is not the loopback point inside the device, and forwards the loopback point setting command to the access device 103 through a signaling channel (e.g., D channel) inside an E1 interface between the access device 103 and the loopback point. After receiving the loopback point setting command transmitted from the D channel, the access device 103 controls the internal related module to complete the loopback operation.
The voice channel between the communication devices uses the B channel in the ISDN interface and the E1 interface; the signaling channel uses the D channel in the ISDN interface and E1 interface, and the interface protocol of the ISDN interface and E1 interface is based on the Q.921/931 protocol format. Table 1 below shows the format of the loopback point set command. Referring to table 1, the loopback point set command may include 12 fields, respectively: information unit length, B-channel number, source ISDN number, frame count, information unit identification, service number, network number, communication plan version number, destination ISDN number, loopback mode, loopback point identification, and reserved fields. Wherein, the length of the information unit represents the length of the loopback point setting command; the B channel number represents the identity of the voice channel; the source ISDN number represents the identity of the terminal; the frame count represents the sequence number of the signaling frame; the information unit identification represents the type of the information unit; the service number represents a service identifier; the network number represents the number of the wireless network type used by the service; the communication plan version number indicates the current protocol version; the destination ISDN number represents the identification of the receiving equipment of the loopback point setting command; the loopback mode can be 1 or 2, wherein 1 represents that the command is a loopback setting command, and 2 represents that the command is a loopback canceling command; the loopback point identifier may be 0,1,.. 7, 0 is taken to indicate that the command is invalid, 1 is taken to indicate that the loopback point is a user interface in the user terminal, 2 is taken to indicate that the loopback point is a user terminal access interface in the network element device, 3 is taken to indicate that the loopback point is an exchange module in the front-end network element device (the network element device closest to the user terminal in the voice channel), 4 is taken to indicate that the loopback point is an exchange module in the rear-end network element device (the network element device farthest from the user terminal in the voice channel), 5 is taken to indicate that the loopback point is a wireless terminal access interface in the network element device, 6 is taken to indicate that the loopback point is a main control module in the access device, and 7 is taken to indicate that the loopback point is an interface control module in the access device.
TABLE 1
Exemplarily, after the device to which the first loopback point belongs receives the loopback point setting command of the first loopback point through the signaling channel, a loopback point setting success response is fed back to the terminal through the signaling channel. Accordingly, step 12 includes the following steps.
And step 121, the terminal receives a loopback point setting success response fed back by the equipment to which the first loopback point belongs through the signaling channel.
And step 122, the terminal sends a test voice signal to the equipment to which the first loopback point belongs through the voice channel under the indication that the loopback point successfully sets the response.
Wherein step 122 may include the following steps.
Firstly, a terminal acquires a test voice signal.
Illustratively, the terminal may acquire the test voice signal in two ways. In the first mode, the terminal can generate a tone signal as a test voice signal through a tone generation module; for example, a tone signal having a frequency of 1 KHz. By using the tone as an auxiliary judgment means, the user can conveniently judge the detection result by judging whether the user can listen to the tone, so that the identifiability of the result is improved. In a second mode, the terminal can record local voice as a test voice signal through a microphone; such as the user's voice. Based on this, the test voice signal is a tone signal generated by the terminal or a voice signal recorded by a microphone of the terminal.
And secondly, the terminal sends a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
Illustratively, the user terminal 101 sends a test voice signal to the network element device 102 or the access device 103 through the B channel.
Table 2 below shows the format of the loopback point setting success response. Referring to table 2, the loopback point setting success response may include 13 fields, 12 of which are the same as 12 fields of the loopback point setting command, and the remaining 1 field is a loopback setting result for indicating whether the loopback point is successfully set. The loop back setting result field can be 1,2,3 or 4, the loop back point setting success is shown when 1 is taken, the loop back point setting failure is shown when 2 is taken, the loop back cancellation success is shown when 3 is taken, and the loop back cancellation failure is shown when 4 is taken.
TABLE 2
In step 13, when the staff determines that the voice channel between the terminal and the first loopback point is faulty, the terminal may further perform loopback tests on other loopback points on the voice channel between the device to which the first loopback point belongs and the terminal, so as to narrow the fault range and realize step-by-step segment fault detection on the whole voice channel. For example, when the voice channel shown in fig. 2 fails, the user performs loop-back tests of steps 11 to 13 on the loop-back point 5 in the network element device B-102 (the device to which the first loop-back point belongs) by using the user terminal a-101. Then, the user can perform the loopback test on the loopback point 4 in the network element device B-102 (the device to which the second loopback point belongs) by using the user terminal a-101, and can also perform the loopback test on the loopback point 3 and the loopback point 2 in the network element device a-102 (the device to which the third loopback point belongs). It can be seen that the device to which the first loopback point belongs and the device to which the second loopback point belongs are the same device. Obviously, the device to which the first loopback point belongs and the device to which the second loopback point belongs may also be different devices. Based on this, the method further comprises step 15-step 17, see fig. 4.
And step 15, when the test voice signal looped back by the first loop back point is not played, the terminal sends a loop back point setting command of the second loop back point to the equipment to which the second loop back point belongs through the signaling channel.
The second loopback point is located on a voice channel between the terminal and the first loopback point, or the first loopback point and the second loopback point belong to the same device. The loopback point setting command of the second loopback point is used for indicating the second loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier.
And the equipment to which the second loopback point belongs receives the loopback point setting command of the second loopback point through the signaling channel.
And step 16, the terminal sends a test voice signal to the equipment to which the second loopback point belongs through a voice channel.
And step 17, the terminal determines whether the test voice signal looped back by the second loop-back point is received.
And when the test voice signal looped back by the second loop point is received, playing the test voice signal looped back by the second loop point to prompt that the voice channel between the terminal and the second loop point is not in fault and the voice channel between the first loop point and the second loop point is in fault. And when the test voice signal looped back by the second loop point is not played, determining that a voice channel between the terminal and the second loop point is in failure.
The execution principle of step 15 to step 17 is the same as that of step 11 to step 14, and the description thereof is omitted.
In step 14, when the test voice signal looped back by the first loop-back point is played, the staff determines that the voice channel between the terminal and the first loop-back point is not in fault. At this time, referring to fig. 4, the method further includes step 18 and step 19.
And step 18, the terminal sends a loopback point canceling command of the first loopback point to the equipment to which the first loopback point belongs through the signaling channel.
The loopback point cancel command of the first loopback point comprises the current service identification of the voice channel and the identification of the first loopback point. The loopback point cancel command is used for indicating the first loopback point to close the loopback function of the voice channel indicated by the current service identifier.
The device to which the first loopback point belongs receives the loopback point cancel command of the first loopback point through the signaling channel and restores the normal operation state of the voice channel corresponding to the current service identifier.
The format of the loop-back point cancel command is the same as that of the loop-back point set command, and is not described herein again.
And the equipment to which the first loopback point belongs sends a loopback point cancellation success response to the terminal through the signaling channel.
And step 19, the terminal receives a loopback point cancellation success response fed back by the equipment to which the first loopback point belongs through the signaling channel.
Similar to the loopback point setting command, the loopback point canceling command is also the same execution flow, and is not described herein again. The format of the loop-back point canceling successful response is the same as the format of the loop-back point setting successful response, and is not described herein again.
Illustratively, when it is determined that the voice channel between the terminal and the first loopback point has no fault and the fault of the voice channel still exists, the fault can be continuously located, so as to implement the step-by-step segmented fault detection on the whole voice channel. For example, referring to fig. 2, the communication device closest to the user terminal 101 on the voice channel may be selected as the first device for performing the loopback test, such as the user terminal 101 itself. When the loopback test of the user terminal 101 is finished and the user terminal 101 has no fault, the communication device closest to the user terminal 101 and not tested can be continuously selected as the second device for performing the loopback test, such as the network element device a-102. Based on this, referring to fig. 4, the method further comprises steps 20-22.
And 20, the terminal sends a loopback point setting command of the third loopback point to the equipment to which the third loopback point belongs through the signaling channel.
The first loopback point is positioned on a voice channel between the terminal and the third loopback point or the first loopback point and the third loopback point belong to the same communication equipment. The device to which the third loopback point belongs comprises at least one loopback point, the loopback point setting command of the third loopback point comprises the current service identifier of the voice channel and the identifier of the third loopback point, and the loopback point setting command of the third loopback point is used for indicating the third loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier.
And step 21, the terminal sends a test voice signal to the equipment to which the third loopback point belongs through a voice channel.
And step 22, the terminal determines whether the test voice signal looped back by the third loop-back point is received.
And after receiving the test voice signal looped back by the third loop point, playing the test voice signal looped back by the third loop point to prompt that a voice channel between the terminal and the third loop point is not in fault. When the test voice signal looped back by the equipment to which the third loop-back point belongs is not received, the working personnel cannot hear the played voice signal and determine that the voice channel between the first loop-back point and the third loop-back point has a fault.
The execution principle of steps 20 to 22 is the same as that of steps 11 to 14, and the description is omitted here.
The working usage flow of the whole loopback positioning fault is described below by taking a certain voice service as an example: first, all the devices in the communication system shown in fig. 1 are powered on, and the initialization configuration of the devices and services is completed; secondly, the user presses the corresponding service key on the user terminal 101, the user terminal 101 informs the network element device 102 and the access device 103 of completing the voice channel connection of the service through signaling, dynamically selects the corresponding device according to the service template attribute of the communication plan, determines the corresponding audio channel resource, and each device sequentially completes the connection action of the corresponding time slot; step three, under normal conditions, a user presses a PTT (Push To Talk) button on the user terminal 101, and local voice can be sent out through the wireless terminal device 104; when the PTT button is released, the user can listen to the communication voice of the opposite terminal; step four, if a fault occurs, if the voice of the opposite party can not be received, the user presses a loopback control key to enter loopback control operation under the condition that the current service is operated on the user terminal 101: the user inputs the identifier of the loopback point, presses the loopback control key, and controls the corresponding equipment (the user terminal 101, the network element equipment 102 or the access equipment 103) to complete the voice loopback control shown in step 11, step 14 or step 19; fifthly, the user presses a tone sending button on the user terminal 101, the user terminal 101 starts to send a 1KHz tone signal to the wireless terminal (step 12, step 15 or step 20), and if the loopback is successful, the tone signal can be heard on a receiver of the equipment; if the single tone signal can not be heard, it can be judged that the fault point is between the user terminal 101 and the loopback point corresponding to the loopback mark; sixthly, if the fault point positioning cannot be finished in the one-time loopback, the previous loopback can be cancelled (step 17 and step 18), then loopback control and result judgment are carried out by continuously finding a loopback point in a fault interval, segmented loopback is carried out on the communication voice channel from near to far (step 19 to step 21), or loopback point selection can be carried out by adopting a bisection method (step 14 to step 16), and the fault point is further positioned; and seventhly, after the fault location is successful, the user takes corresponding fault removal measures.
When a communication fault occurs in a voice channel, a terminal sends a loopback point setting command of a first loopback point to a device to which the first loopback point belongs through a signaling channel corresponding to the voice channel, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier; sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel; if the voice channel between the terminal and the first loopback point is in fault, the first loopback point cannot loop back the test voice signal through the voice channel; therefore, the positioning of the communication fault is directly realized in the voice channel of the fault, the service configuration is not changed temporarily, the fault site can be reserved, the voice channels of other user terminals are not occupied, the fault positioning can be completed quickly and conveniently, and compared with the common fault positioning means at the present stage, a large amount of manpower and material resource investment is reduced; moreover, the equipment to which the first loopback point belongs is not limited to the network element equipment, and the fault location of each communication equipment including the network element equipment on the voice channel is supported, so that the efficiency and the effectiveness of the fault location are improved.
Fig. 5 shows a terminal according to an embodiment of the present invention, and referring to fig. 5, the terminal 50 includes: a sending module 51, a receiving module 52 and a playing module 53.
The sending module 51 is configured to send a loopback point setting command of the first loopback point to the device to which the first loopback point belongs through a signaling channel corresponding to the voice channel when the voice channel has a communication fault, where the loopback point setting command of the first loopback point includes a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used to instruct the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier.
The sending module 51 is further configured to send the test speech signal to the device to which the first loopback point belongs through the voice channel.
And a receiving module 52, configured to receive the test voice signal looped back by the first loop-back point.
The playing module 53 is configured to play the test voice signal looped back by the first loop-back point to prompt that the voice channel between the terminal and the first loop-back point is not faulty.
Exemplarily, the sending module 51 is configured to receive, through a signaling channel, a loopback point setting success response fed back by a device to which the first loopback point belongs; and under the indication that the loopback point sets a successful response, sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
The sending module 51 is configured to obtain a test voice signal, where the test voice signal is a tone signal generated by the terminal or a voice signal recorded by a microphone of the terminal; and sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
It should be noted that: in the terminal provided in the foregoing embodiment, when positioning a communication fault, only the division of each functional module is described as an example, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the embodiments of the method for positioning a terminal and a communication fault provided by the embodiments belong to the same concept, and specific implementation processes thereof are described in the embodiments of the method for positioning a terminal and a communication fault, which are not described herein again.
Based on the system architecture shown in fig. 1, an embodiment of the present invention provides a system for locating a communication fault, where the system includes: a plurality of terminals (equivalent to user terminals), wherein each terminal comprises at least one loopback point; the network element equipment comprises at least one loopback point; and, a number of access devices.
The terminal is used for sending a loopback point setting command of a first loopback point to equipment to which the first loopback point belongs through a signaling channel corresponding to a voice channel when the voice channel has a communication fault, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the equipment to which the first loopback point belongs is any one of a terminal, network element equipment and access equipment.
The equipment to which the first loopback point belongs is used for receiving a loopback point setting command of the loopback point and controlling the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier under the indication of the loopback point setting command of the loopback point.
The terminal is also used for sending a test voice signal to the equipment to which the first loopback point belongs through the voice channel, receiving and playing the test voice signal looped back by the first loopback point so as to prompt that the voice channel between the terminal and the first loopback point is not in fault.
Exemplarily, the terminal is configured to receive, through the signaling channel, a loopback point setting success response fed back by the device to which the first loopback point belongs; and under the indication that the loopback point sets a successful response, sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
Exemplarily, the terminal is configured to obtain a test voice signal, where the test voice signal is a single tone signal generated by the terminal or a voice signal recorded by a microphone of the terminal; and sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel.
Illustratively, the terminal is further configured to, when the test speech signal looped back by the first loopback point is not played, send a loopback point setting command of the second loopback point to the device to which the second loopback point belongs through the signaling channel, where the loopback point setting command of the second loopback point includes a current service identifier of the voice channel and an identifier of the second loopback point.
Correspondingly, the device to which the second loopback point belongs is configured to receive the loopback point setting command of the second loopback point, and control the second loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier under the instruction of the loopback point setting command of the second loopback point.
Correspondingly, the terminal is also used for sending a test voice signal to the equipment to which the second loopback point belongs through the voice channel, receiving and playing the test voice signal looped back by the second loopback point so as to prompt that the voice channel between the first loopback point and the second loopback point has a fault.
When a communication fault occurs in a voice channel, a terminal sends a loopback point setting command of a first loopback point to a device to which the first loopback point belongs through a signaling channel corresponding to the voice channel, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back a received voice signal through the voice channel indicated by the current service identifier; sending a test voice signal to the equipment to which the first loopback point belongs through a voice channel; if the voice channel between the terminal and the first loopback point is in fault, the first loopback point cannot loop back the test voice signal through the voice channel; therefore, the positioning of the communication fault is directly realized in the voice channel of the fault, the service configuration is not changed temporarily, the fault site can be reserved, the voice channels of other user terminals are not occupied, the fault positioning can be completed quickly and conveniently, and compared with the common fault positioning means at the present stage, a large amount of manpower and material resource investment is reduced; moreover, the equipment to which the first loopback point belongs is not limited to the network element equipment, and the fault location of each communication equipment including the network element equipment on the voice channel is supported, so that the efficiency and the effectiveness of the fault location are improved.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for locating a communication fault, the method comprising:
when a communication fault occurs in a voice channel, a user terminal acquires an identifier of a loopback point appointed by a user;
judging based on the identifier of the loopback point, and determining whether the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal;
if the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal, completing voice time slot loopback through a control instruction in an ISDN interface chip, if the loopback point corresponding to the identifier of the loopback point is not the internal loopback of the user terminal, sending a loopback point setting command of the first loopback point to a device to which the first loopback point belongs through a signaling channel of an ISDN interface, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and the identifier of the first loopback point, the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier, and the loopback point setting command comprises: information unit length, B-channel number, source ISDN number, frame count, information unit identification, service number, network number, communication plan version number, destination ISDN number, loopback mode, loopback point identification, and reserved fields, the frame count represents the sequence number of the signaling frame, the information unit identifier represents the type of the information unit, the service number represents the service identifier, and the communication plan version number represents the current protocol version; the equipment to which the first loopback point belongs comprises first network element equipment connected with the user terminal, second network element equipment connected with the first network element equipment, and access equipment connected with the second network element equipment, wherein the access equipment is also connected with wireless terminal equipment; a loopback point in the user terminal is at a user interface of the user terminal, a loopback point in the first network element equipment is at a user terminal access interface and an exchange module of the first network element equipment, a loopback point in the second network element equipment is at an exchange module and a wireless terminal access interface of the second network element equipment, and a loopback point in the access equipment is at a main control module and an interface control module of the access equipment;
sending a test voice signal to the equipment to which the first loopback point belongs through the voice channel; wherein, the voice channel uses the B channel in ISDN interface and E1 interface; the signaling channel uses a D channel in an ISDN interface and an E1 interface;
and receiving and playing the test voice signal looped back by the first loop-back point to prompt that a voice channel between the user terminal and the first loop-back point has no fault.
2. The method of claim 1, wherein said sending a test speech signal to the device to which the first loopback point belongs via the voice channel comprises:
receiving a loopback point setting success response fed back by the equipment to which the first loopback point belongs through the signaling channel;
and sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel under the indication that the loopback point sets a successful response.
3. The method according to claim 2, wherein said sending the test speech signal to the device to which the first loopback point belongs via the voice channel comprises:
acquiring the test voice signal, wherein the test voice signal is a single tone signal generated by the user terminal or a voice signal recorded by a microphone of the user terminal;
and sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
4. The method of claim 1, further comprising:
when the test voice signal looped back by the first loop-back point is not received and played, sending a loop-back point setting command of the second loop-back point to equipment to which the second loop-back point belongs through the signaling channel, wherein the loop-back point setting command of the second loop-back point comprises a current service identifier of the voice channel and an identifier of the second loop-back point, and the loop-back point setting command of the second loop-back point is used for indicating the second loop-back point to loop back the received voice signal through the voice channel indicated by the current service identifier;
sending a test voice signal to the equipment to which the second loopback point belongs through the voice channel;
and receiving and playing the test voice signal looped back by the second loop back point to prompt that a voice channel between the first loop back point and the second loop back point is in failure.
5. The method of claim 1, further comprising:
sending a loopback point cancel command of the first loopback point to the device to which the first loopback point belongs through the signaling channel, wherein the loopback point cancel command of the first loopback point comprises a current service identifier of the voice channel and an identifier of the first loopback point, and the loopback point cancel command of the first loopback point is used for indicating the first loopback point to close a loopback function of the voice channel indicated by the current service identifier;
and receiving a loopback point cancellation success response fed back by the equipment to which the first loopback point belongs through the signaling channel.
6. The method of claim 5, further comprising:
sending a loopback point setting command of a third loopback point to equipment to which the third loopback point belongs through the signaling channel, wherein the loopback point setting command of the third loopback point comprises a current service identifier of the voice channel and an identifier of the third loopback point, and the loopback point setting command of the third loopback point is used for indicating the third loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier;
sending a test voice signal to the equipment to which the third loopback point belongs through the voice channel;
and receiving and playing the test voice signal looped back by the third loop-back point to prompt that a voice channel between the user terminal and the third loop-back point has no fault.
7. A user terminal, characterized in that the user terminal comprises:
the sending module is used for acquiring the identifier of the loopback point appointed by the user terminal when the communication fault occurs in the voice channel; judging based on the identifier of the loopback point, and determining whether the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal; if the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal, completing voice time slot loopback through a control instruction in an ISDN interface chip, if the loopback point corresponding to the identifier of the loopback point is not the internal loopback of the user terminal, sending a loopback point setting command of the first loopback point to a device to which the first loopback point belongs through a signaling channel of an ISDN interface, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and the identifier of the first loopback point, the loopback point setting command of the first loopback point is used for indicating the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier, and the loopback point setting command comprises: the method comprises the steps of obtaining a signaling frame, wherein the signaling frame comprises an information unit length, a B channel number, a source ISDN number, a frame count, an information unit identifier, a service number, a network number, a communication plan version number, a destination ISDN number, a loopback mode, a loopback point identifier and a reserved field, wherein the frame count represents a sequence number of a signaling frame, the information unit identifier represents the type of the information unit, the service number represents a service identifier, and the communication plan version number represents a current protocol version; the equipment to which the first loopback point belongs comprises first network element equipment connected with the user terminal, second network element equipment connected with the first network element equipment, and access equipment connected with the second network element equipment, wherein the access equipment is also connected with wireless terminal equipment; a loopback point in the user terminal is at a user interface of the user terminal, a loopback point in the first network element equipment is at a user terminal access interface and an exchange module of the first network element equipment, a loopback point in the second network element equipment is at an exchange module and a wireless terminal access interface of the second network element equipment, and a loopback point in the access equipment is at a main control module and an interface control module of the access equipment;
the sending module is further configured to send a test speech signal to the device to which the first loopback point belongs through the voice channel; wherein, the voice channel uses the B channel in ISDN interface and E1 interface; the signaling channel uses the D channel in the ISDN interface and the E1 interface;
the receiving module is used for receiving the test voice signal looped back by the first loop-back point;
and the playing module is used for playing the test voice signal looped back by the first loop-back point so as to prompt that a voice channel between the user terminal and the first loop-back point is not in fault.
8. The user terminal of claim 7, wherein the sending module is configured to,
receiving a loopback point setting success response fed back by the equipment to which the first loopback point belongs through the signaling channel;
and under the indication that the loopback point successfully answers, sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
9. The user terminal of claim 8, wherein the sending module is configured to,
acquiring the test voice signal, wherein the test voice signal is a single tone signal generated by the user terminal or a voice signal recorded by a microphone of the user terminal;
and sending the test voice signal to the equipment to which the first loopback point belongs through the voice channel.
10. A system for locating a communication fault, the system comprising:
the user terminals comprise at least one loopback point;
the network element equipment comprises at least one loopback point;
the access equipment comprises at least one loopback point;
the user terminal is used for acquiring the identifier of the loopback point appointed by the user when the voice channel has communication failure; judging based on the identifier of the loopback point, and determining whether the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal; if the loopback point corresponding to the identifier of the loopback point is the internal loopback of the user terminal, completing voice time slot loopback through a control instruction inside an ISDN interface chip, if the loopback point corresponding to the identifier of the loopback point is not the internal loopback of the user terminal, sending a loopback point setting command of the first loopback point to a device to which the first loopback point belongs through a signaling channel of an ISDN interface, wherein the loopback point setting command of the first loopback point comprises a current service identifier of the voice channel and the identifier of the first loopback point, the device to which the first loopback point belongs is any one of the user terminal, the network element device and the access device, and the loopback point setting command comprises: information unit length, B-channel number, source ISDN number, frame count, information unit identification, service number, network number, communication plan version number, destination ISDN number, loopback mode, loopback point identification, and reserved fields, the frame count represents the sequence number of the signaling frame, the information unit identifier represents the type of the information unit, the service number represents the service identifier, and the communication plan version number represents the current protocol version; the equipment to which the first loopback point belongs comprises first network element equipment connected with the user terminal, second network element equipment connected with the first network element equipment, and access equipment connected with the second network element equipment, wherein the access equipment is also connected with wireless terminal equipment; a loopback point in the user terminal is at a user interface of the user terminal, a loopback point in the first network element equipment is at a user terminal access interface and an exchange module of the first network element equipment, a loopback point in the second network element equipment is at an exchange module and a wireless terminal access interface of the second network element equipment, and a loopback point in the access equipment is at a main control module and an interface control module of the access equipment;
the equipment to which the first loopback point belongs is used for receiving a loopback point setting command of the loopback point and controlling the first loopback point to loop back the received voice signal through the voice channel indicated by the current service identifier under the indication of the loopback point setting command of the loopback point;
the user terminal is also used for sending a test voice signal to the equipment to which the first loopback point belongs through the voice channel, wherein the voice channel uses a B channel in an ISDN interface and an E1 interface; the signaling channel uses a D channel in an ISDN interface and an E1 interface; and receiving and playing the test voice signal looped back by the first loop-back point to prompt that a voice channel between the user terminal and the first loop-back point has no fault.
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