CN110519123B - Method and system for detecting use state of DSP - Google Patents

Method and system for detecting use state of DSP Download PDF

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CN110519123B
CN110519123B CN201910783354.0A CN201910783354A CN110519123B CN 110519123 B CN110519123 B CN 110519123B CN 201910783354 A CN201910783354 A CN 201910783354A CN 110519123 B CN110519123 B CN 110519123B
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dsp
use state
information value
information
core network
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CN110519123A (en
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徐华
吴闽华
徐从元
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Shenzhen Genew Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/50Testing arrangements

Abstract

The invention discloses a method and a system for detecting the use state of a DSP, which comprises the following steps: monitoring whether the use state of each DSP is changed; when the change of the use state of one path of DSP is monitored, acquiring an information value of preset extension information corresponding to the changed use state of the DSP; and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP. Therefore, when the superior maintenance management software is used, the information of the DSP use condition of each call can be recorded, and the information can be called at any time when needed, so that the requirement of problem positioning can be met, and the function of statistical management can be realized.

Description

Method and system for detecting use state of DSP
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a method and a system for detecting a DSP use state.
Background
MSAN, Multi-Service Access Network, Integrated services Access Network. As the demand for telecommunication services increases, the provision of high-capacity, high-rate, high-quality integrated services (voice, data, video, multimedia, etc.) is becoming the direction of the development of access networks. The telecommunication network is moving towards intellectualization, broadband and integration, and operators have established more perfect backbone networks.
However, in the communication session of MSAN devices, different call types are different for DSP usage, such as voice call, fax, Modem communication, etc., and DSP is different for EC, NLP, PLC, etc. parameter settings, since this is dynamically completed by DSP and these information will not be carried in standard signaling, there is a certain difficulty for maintenance department, firstly, when there is a problem in a call on a certain path, the usage information of DSP during the call at that time cannot be timely obtained, secondly, the usage condition of DSP of terminal customer cannot be obtained based on statistics of these information.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for detecting a DSP use state, aiming at solving the problem in the prior art that DSP use information cannot be obtained in time when a problem occurs in MSAN device communication.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method of detecting DSP usage status, comprising:
monitoring whether the use state of each DSP is changed;
when the change of the use state of one path of DSP is monitored, acquiring an information value of preset extension information corresponding to the changed use state of the path of DSP;
and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP.
The method for detecting the use state of the DSP, wherein before monitoring whether the use state of each DSP is changed, the method further comprises the following steps:
and presetting the extension information of the use state of each DSP, and configuring an information value for the extension information of the use state of each DSP.
The method for detecting the use state of the DSP, wherein the monitoring whether the use state of each path of DSP changes specifically includes:
acquiring the information value of the expansion information of the use state of each DSP in real time;
and judging whether the use state of each DSP is changed or not according to the information value.
The method for detecting the use state of the DSP, wherein the determining whether the use states of the DSPs change according to the information value specifically includes:
comparing the first information value at the current moment with the information value at the previous moment;
and when the first information value at the current moment is different from the information value at the previous moment, judging that the use state of the DSP changes.
The method for detecting the usage state of the DSP, wherein the obtaining the information value of the extension information of the usage state of each channel of the DSP in real time specifically includes:
and acquiring the information value of the extension information of the use state of each DSP in real time through the DSP chip.
The method for detecting the use state of the DSP, wherein the sending the obtained information value to the core network device through an SIP message, so that the core network device further includes, before obtaining the use state of the DSP:
the message header of the SIP information presets a storage bit of an information value of the extension information.
The method for detecting the use state of the DSP, wherein the sending the obtained information value to the core network device through an SIP message, so that the core network device obtains the use state of the DSP specifically includes:
storing the acquired information value in the storage bit, and replacing the information value of the original storage bit;
and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP.
The method for detecting the use state of the DSP is characterized in that the same storage bit is used on the core network equipment.
A computer readable storage medium, wherein the computer readable storage medium stores one or more programs, which are executable by one or more processors to implement steps in a method for detecting DSP usage status as described in any one of the above.
A system for detecting DSP use status, comprising: the system comprises access network equipment and an upper computer, wherein the upper computer comprises a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps in the method for detecting DSP use status as described in any one of the above.
Has the beneficial effects that: compared with the prior art, the invention provides a method and a system for detecting the use state of a DSP, wherein the method comprises the following steps: monitoring whether the use state of each DSP is changed; when the change of the use state of one path of DSP is monitored, acquiring an information value of preset extension information corresponding to the changed use state of the path of DSP; and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP. Therefore, when the superior maintenance management software is used, the information of the DSP use condition of each call can be recorded, and the information can be called at any time when needed, so that the requirement of problem positioning can be met, and the function of statistical management can be realized.
Drawings
FIG. 1 is a flowchart illustrating a method for detecting a DSP use status according to a preferred embodiment of the present invention.
FIG. 2 is a schematic diagram of a system for detecting the usage status of a DSP according to a preferred embodiment of the present invention.
Detailed Description
The present invention provides a method and a system for detecting a DSP use state, and in order to make the purpose, technical solution, and effect of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention will be further explained by the description of the embodiments in conjunction with the drawings.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for detecting a DSP use status according to a preferred embodiment of the present invention. The method comprises the following steps:
s100, monitoring whether the use state of each DSP changes;
specifically, the Access network device adopted by the present invention is preferably an MSAN device, wherein an MSAN (Multi-Service Access Node) is a narrowband and broadband integrated Access network device, and is also a carrier-grade soft-switch media Access gateway, which supports seamless Access of an NGN/IMS network, supports a Service Multi-routing function between a PSTN network and the NGN/IMS network, and implements smooth evolution from narrowband Access to the NGN/IMS network.
SIP: session Initiation Protocol, is a multimedia communication Protocol established by IETF (Internet Engineering Task Force) for establishing, modifying and terminating multimedia sessions or calls of one or more participants. The multimedia session may be a multimedia conference, a remote teaching, an internet phone, and various other applications. The SIP protocol may be used to initiate sessions and may also be used to invite members to join sessions that have been established in other ways. The SIP protocol transparently supports name mapping and redirection services, facilitating intelligent network and personal mobile services. Once the session is established, the media stream will be transported directly in the bearer layer using the RTP protocol. The SIP protocol is defined in detail in RFC 3261.
The SIP message, SIP protocol, is a text-based protocol, using the UTF-8 character set (RFC2279[7]), see the definition of RFC 3261. A SIP message may be either a request from the client to the server or a response from the server to the client. The request (7.1) or reply (7.2) messages are based on the RFC2822 format, even though there is a difference in character set and syntax detail. (SIP allow packet header field is not a standard RFC2822 packet header field). Both message types consist of a start line, one or more header fields, and an optional message chinese.
General message as start line
Message packet header
CRLF
[ message text ]
Start line as request line/status line
The start line, each header line, the empty line, must be made up of carriage returns and line Changes (CRLF). Even if the message body is not available, an empty line must follow. Except for the differences in character sets, many SIP messages and header fields are formatted as HTTP/1.1. We do not repeat its syntax and semantics here, we use [ HX.Y ] to flag the description of section X.Y of the HTTP/1.1 specification (RFC2616[8 ]). SIP is not a superset or extension of HTTP.
Further, extension refers to a message header which is not defined in a standard protocol and is allowed to be autonomously defined based on a protocol format; the access network device and the uplink core network device extend many message headers to fulfill the corresponding functional requirements.
And (4) DSP: digital Signal Processing, i.e. Digital Signal Processing technology, mainly performs conversion Processing on narrowband and broadband messages in access network equipment, thereby realizing the mutual conversion between narrowband PCM messages and g.711 messages at the IP side.
Illustratively, the monitoring whether the use state of each DSP changes specifically includes:
s101, acquiring information values of the expansion information of the use states of all paths of DSPs in real time;
and S102, judging whether the use state of each DSP is changed or not according to the information value.
Specifically, the invention can obtain the information of the DSP use condition of each call when the superior maintenance management software records by monitoring the DSP use state and reporting through SIP messages when the use state changes, so that maintenance personnel can call at any time when needing problem positioning, thereby facilitating the management of users.
For example, the determining whether the usage status of each DSP changes according to the information value specifically includes:
s1021, comparing the first information value of the current moment with the information value of the previous moment;
and S1022, when the first information value at the current moment is different from the information value at the previous moment, determining that the using state of the DSP changes.
Certainly, in practical application, the DSP use state of each call is detected, and reported states, such as voice to fax, DSP use mode conversion from spech mode to PT mode, and the like, can be obtained in real time through the DSP chip and automatically detected.
In this embodiment, in the communication session of the access network device, different call types are different for the DSP to use, for example, voice call, fax, Modem communication, etc., and the DSP is different for parameter settings of EC, NLP, PLC, etc., but because this is dynamically completed by the DSP and these information is not carried in the standard signaling, there is a certain difficulty for the maintenance department. Therefore, in an implementation manner of this embodiment, before monitoring whether the usage state of each DSP changes, the method further includes:
and S10, presetting the extension information of the use state of each DSP, and configuring information values for the extension information of the use state of each DSP.
In this embodiment, as shown in the following table, the extension information of the DSP use state specifically includes: echo Cancellation (EC), non-linear echo cancellation (NLP), and packet loss Processing (PLC).
Figure BDA0002177246140000051
Next, each of the extension information mentioned above will be specifically explained.
EC: echo cancellation, Echo (Echo) includes acoustic Echo and line Echo. The acoustic echo refers to an echo generated by reflecting sound back when the sound meets an obstacle, for example, a person who places a microphone of a phone on one side on a desk and speaks on the other side can usually hear own sound when talking, which is caused by the fact that the sound of the receiver is reflected into the microphone through the desk, and is the acoustic echo. Because normal voice or acoustic echo cannot be distinguished, the DSP of the current VOIP does not support the elimination of the acoustic echo. Line echo is caused by the two-four wire conversion of the device, because the impedance of the two-four wire conversion coils cannot be perfectly matched, and echo cancellation is generally referred to as line echo cancellation.
NLP: a nonlinear Processor. EC cannot completely cancel the echo, i.e. there is a residual echo, for a variety of reasons. In order to improve the EC performance, after the residual echo power is reduced to a certain degree, some non-linear processing is performed on the residual echo power, so that the residual echo power can be further reduced.
PLC: packet Loss compensation. The voice packet IP data is transmitted by adopting an RTP protocol, the DSP chip detects the serial number of an RTP message, if the message is found to be lost, the voice data is automatically generated according to a certain compensation mode and is sent to a TDM side. The voice quality is influenced by the occurrence of packet loss of a network or equipment, the packet loss is difficult to avoid in the actual environment, the influence of the packet loss on the voice quality can be reduced by compensating the lost signals through the PLC, and the success rate of FoIP and MoIP under the condition of packet loss is improved.
In practical applications, the extended information of the DSP usage information may further include Speed, Low Speed modem, High Speed modem, data, EC (echo cancellation), NLP (non-linear processor), 2833transmission (client), 2833reception (receiver), and PLC (packet loss compensation).
In this embodiment, each binary data is composed according to the extension information, and the binary data is defined as ter-media, where for a single call of the access network device, the binary data of the ter-media may be set to 000000000, which corresponds to the extension information of the DSP use information, and represents parameter values of speech (speech), Low Speed modem (Low Speed modem), High Speed modem (High Speed modem), data (data), EC (echo cancellation), NLP (non-linear processor), 2833transmission (client), 2833reception (receiver), and PLC (packet loss compensation), respectively.
Further, when the path of the voice mode is changed, the binary data of the ter-media is changed correspondingly, for example, in the voice mode, the binary data of the ter-media is changed to 100011101; in facsimile mode, the binary data for the ter-media is changed to 110010001; in the communication mode, the binary data of ter-media is changed to 101000001. It should be noted that the ter-media is the storage bit to which reference is made below, and will be described and explained in detail below.
S200, when the change of the use state of one path of DSP is monitored, acquiring the information value of the preset extension information corresponding to the changed use state of the DSP.
In particular, since different call types are different for the DSP in the communication session of the access network device, such as voice call, fax, Modem communication, etc., the DSP is different for the parameter settings of EC, NLP, PLC, etc., but because this is done dynamically by the DSP and these information are not carried in the standard signaling, there is a certain difficulty for the maintenance department. Therefore, in an implementation manner of this embodiment, before the sending the obtained information value to the core network device through the SIP message, the method for obtaining the use state of the DSP by the core network device further includes:
s20, the message head of the SIP information presets the storage position of the information value of the extension information. It can also be said that the extended message headers of the access network device and the core network device are extended according to a preset protocol. In practical applications, the same storage location is used on the core network device. Therefore, the core network equipment can be ensured to receive the use states of all paths of DSPs.
Specifically, since the standard SIP signaling is defined in the SIP standard protocol, but there is no extended signaling, the standard SIP signaling does not carry such information on the premise of no extension; standard signaling does not include this information. In practical application, the invention allows the self-defined message header expanded based on the protocol format, and the access network equipment and the core network equipment expand a plurality of message headers to fulfill the corresponding functional requirements.
Further, the sending the obtained information value to the core network device through the SIP message so that the obtaining, by the core network device, the use state of each DSP specifically includes:
s201, storing the acquired information value in the storage bit, and replacing the information value of the original storage bit;
s202, sending the acquired information value to core network equipment through an SIP message, so that the core network equipment acquires the use state of the DSP.
Specifically, when the use state of the DSP is detected to change each time, the acquired new information value is stored in the storage bit, and the information value of the original storage bit is replaced by the new information value, so that the DSP is ensured to be updated timely, and the accuracy of the DSP information is improved. Further, the updated DSP information is stored in the SIP message, and the obtained information value is sent to the core network equipment through the SIP message, so that the core network equipment obtains the use state of the DSP.
And S300, sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP.
Specifically, when the change of the use state of the DSP is monitored, the extension information of the DSP use information is sent to the core network equipment so as to realize the extension of the SIP message header. In this way, the operator can know the following specific use cases of the end user: for example, 1), it can be known whether the user has many voice calls or fax or Modem communication according to statistics; 2) and whether the modes and the parameter usages are matched or not is judged according to each call, and if not, the reason needs to be traced. Moreover, the method can also help to position the problem, and when positioning is carried out, whether the use condition of the DSP in the communication process is correct or not can be called and checked: if the problem is correct, the reason is eliminated, and if the problem is incorrect, the problem is continuously traced, so that the problem positioning speed can be increased; the speed of positioning to solve the problem is very important for operators.
In summary, the present invention addresses the above-mentioned problems and satisfies the client requirements, and we extend the SIP message header, define the extension information of the specific DSP use case, and report the extension information through the SIP message when the DSP use state of each call changes, so that the DSP use case information of each call can be recorded by the upper maintenance management software, and can be called at any time when needed, which can not only satisfy the problem location requirement, but also realize the function of statistical management.
Based on the method for detecting the usage state of the DSP, the present invention further provides a computer-readable storage medium, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the steps in the method for detecting the usage state of the DSP according to the foregoing embodiment.
Based on the method for detecting the use state of the DSP, the invention also provides a system for detecting the use state of the DSP, which comprises the following steps: the access network equipment is communicated with the upper computer. As shown in fig. 2, the upper computer includes at least one processor (processor) 20; a display screen 21; and a memory (memory)22, and may further include a communication Interface (Communications Interface)23 and a bus 24. The processor 20, the display 21, the memory 22 and the communication interface 23 can communicate with each other through the bus 24. The display screen 21 is configured to display a user guidance interface preset in the initial setting mode. The communication interface 23 may transmit information. The processor 20 may call logic instructions in the memory 22 to perform the methods in the embodiments described above.
Furthermore, the logic instructions in the memory 22 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 22, which is a computer-readable storage medium, may be configured to store a software program, a computer-executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 30 executes the functional application and data processing, i.e. implements the method in the above-described embodiments, by executing the software program, instructions or modules stored in the memory 22.
The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by use of the server side, and the like. Further, the memory 22 may include a high speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be transient storage media.
In addition, the specific processes loaded and executed by the storage medium and the instruction processors in the server are described in detail in the method, and are not stated herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. A method for detecting the use state of a DSP, comprising:
presetting extension information of each DSP use state, and configuring information values for the extension information of each DSP use state;
monitoring whether the use state of each DSP is changed;
when the change of the use state of one path of DSP is monitored, acquiring an information value of preset extension information corresponding to the changed use state of the path of DSP;
and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP.
2. The method according to claim 1, wherein the monitoring whether the usage status of each DSP is changed specifically comprises:
acquiring the information value of the expansion information of the use state of each DSP in real time;
and judging whether the use state of each DSP is changed or not according to the information value.
3. The method for detecting the usage status of a DSP according to claim 2, wherein the determining whether the usage status of each DSP has changed according to the information value specifically includes:
comparing the first information value at the current moment with the information value at the previous moment;
and when the first information value at the current moment is different from the information value at the previous moment, judging that the use state of the DSP is changed.
4. The method for detecting the usage status of a DSP according to claim 2, wherein the obtaining the information value of the extension information of the usage status of each DSP in real time specifically includes:
and acquiring the information value of the extension information of the use state of each DSP in real time through the DSP chip.
5. The method according to claim 1, wherein the step of sending the obtained information value to the core network device via an SIP message, so that the core network device further includes, before obtaining the usage state of the DSP:
the message header of the SIP information presets a storage bit of an information value of the extension information.
6. The method according to claim 5, wherein the sending the obtained information value to the core network device through an SIP message so that the core network device obtains the usage state of the DSP specifically comprises:
storing the acquired information value in the storage bit, and replacing the information value of the original storage bit;
and sending the acquired information value to the core network equipment through an SIP message so that the core network equipment acquires the use state of the DSP.
7. The method of claim 5, wherein the same memory location is used on the core network device.
8. A computer readable storage medium, storing one or more programs, which are executable by one or more processors to implement the steps of the method for detecting the usage status of a DSP according to any one of claims 1 to 7.
9. A system for detecting a usage status of a DSP, comprising: the system comprises access network equipment and an upper computer, wherein the upper computer comprises a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps of the method for detecting the usage status of a DSP according to any one of claims 1 to 7.
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CN101309277A (en) * 2008-06-19 2008-11-19 华为技术有限公司 SIP terminal, method and system for uploading state, method and apparatus for processing the uploaded state
CN101741993A (en) * 2008-11-11 2010-06-16 华为终端有限公司 Method, equipment and system for carrying data service of point of sale (POS)terminal by IP network
CN106899957A (en) * 2017-01-13 2017-06-27 深圳市万普拉斯科技有限公司 The bearing calibration of IMS registration state and device

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