WO2010017758A1 - Procédé de commande de gain de signal, système de communication, passerelle multimédia et dispositif de commande de passerelle multimédia - Google Patents

Procédé de commande de gain de signal, système de communication, passerelle multimédia et dispositif de commande de passerelle multimédia Download PDF

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Publication number
WO2010017758A1
WO2010017758A1 PCT/CN2009/073169 CN2009073169W WO2010017758A1 WO 2010017758 A1 WO2010017758 A1 WO 2010017758A1 CN 2009073169 W CN2009073169 W CN 2009073169W WO 2010017758 A1 WO2010017758 A1 WO 2010017758A1
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WO
WIPO (PCT)
Prior art keywords
gain
signal
media gateway
control information
adjusted
Prior art date
Application number
PCT/CN2009/073169
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English (en)
Chinese (zh)
Inventor
林扬波
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010017758A1 publication Critical patent/WO2010017758A1/fr
Priority to US13/026,934 priority Critical patent/US20110134785A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers

Definitions

  • the present invention relates to the field of mobile communications, and in particular to the technique of gain control of a (media) gateway control protocol. Background technique
  • MGC Media Gateway Controller
  • MG Media Gateway
  • MG Media Gateway
  • the MGC is responsible for the service control function.
  • the MG is responsible for the media bearer function, thereby separating the service control plane and the media bearer plane, thereby fully sharing network resources, simplifying equipment upgrades and service expansion, and reducing development and maintenance costs.
  • H.248/MeGaCo Gateway Control Protocol
  • MGCP Media Gateway Control Protocol
  • H.248/ MeGaCo is based on the development of MGCP.
  • MGCP version 1 was developed by the IETF in October 1999 and revised in January 2003.
  • H.248/MeGaCo version 1 was jointly developed by the ITU and the IETF in November 2000 and revised in June 2003
  • H.248 Version 2 was developed by the ITU in May 2002 and revised in March 2004.
  • H.248 version 3 was developed by the ITU in September 2005 and revised in May 2008.
  • the signal is used by the MGC to instruct the MG to perform certain resource operations, such as playback.
  • the signal is executed at the Termination or Stream level, and execution on the terminal indicates that all streams on the terminal are applicable at the same time.
  • a list of signals can be used to represent a series of operations that need to be performed in sequence, with gaps between operations.
  • MGC The signal and/or signal list is included in the signal descriptor for delivery to the MG.
  • the list of signals and/or signals in the signal descriptors issued at the same time is synchronized.
  • the execution of the signal may be based on a certain gain. There is a need to adjust its gain in the application, but there is no gain adjustment mechanism in the prior art, so the MG cannot adjust the gain.
  • Embodiments of the present invention provide a method for implementing gain adjustment by extending a (media) gateway control protocol, a system, a media gateway, and a controller thereof, to implement MG adjustment gain.
  • a signal gain control method includes the following steps: The media gateway receives control information from a media gateway controller that adjusts a gain of a signal based on a direct setting manner or a relative current value increment manner; the media gateway according to the control information pair The corresponding signal is used for gain adjustment.
  • a media gateway comprising: a receiving unit, configured to receive, from a media gateway controller, control information for adjusting a gain of a signal based on a direct setting manner or a relative current value increment manner; and an adjusting unit, corresponding to the control information The signal is adjusted for gain.
  • a communication system comprising: a media gateway controller, configured to send, to a media gateway, control information that adjusts a gain of a signal based on a direct setting manner or a relative current value increment manner.
  • the media gateway is configured to receive the control information, and perform gain adjustment on the corresponding signal according to the control information.
  • a media gateway controller comprising: a sending module, configured to send, to the media gateway, control information for adjusting a gain of a signal according to a direct setting manner or a relative current value increment manner, where the control information is used to control a media gateway Gain adjustment is performed on the corresponding signal.
  • the media gateway receives control information from the media gateway controller that adjusts the gain of the signal based on a direct setting manner or a relative current value increment manner; the media gateway is configured according to The control information adjusts the gain of the corresponding signal, so that the media gateway can adjust the gain of the signal according to the direct setting mode or the current incremental mode.
  • FIG. 1 is a schematic diagram of networking of an MG and an MGC used in an embodiment of the present invention
  • FIG. 2 is a flow chart of an embodiment of a gain adjustment method of the present invention
  • FIG. 3 is a schematic structural diagram of a system according to an embodiment of the present invention. detailed description
  • FIG. 1 it is a networking diagram of a media gateway controller MGC and a media gateway MG in a service and bearer separation architecture according to an embodiment of the present invention.
  • the gateway control protocol is the main protocol for communication between the MG and the MGC.
  • H.248/MeGaCo Gateway Control Protocol
  • MGCP Media Gateway Control Protocol
  • H.248/ MeGaCo is based on the development of MGCP.
  • terminals various resources on the MG are abstractly represented as terminals (Termination).
  • the terminal is further divided into physical terminals and temporary (Ephemeral) terminals.
  • the former represents some semi-permanent physical entities, such as TDM time slots, etc., and the latter represents public resources released after temporary applications, such as RTP flows.
  • the MG as a whole is represented by a special terminal called a root terminal.
  • the association between terminals is abstracted as a context.
  • the context can contain multiple terminals, thus describing the interrelationships between the terminals in terms of topology. For a terminal that has not been associated with another terminal, it is included by a special context called a Null context.
  • Termination and Context operations This operation is done through the request (Request) and response (Reply) of the command between the MGC and the MG.
  • Command types include Add, Modify, Subtract, Move, AuditValue, AuditCapabilities, Notify, and ServiceChange.
  • Command parameters also known as descriptors, are classified as Property, Signal, Event, Statistic, etc. In order to facilitate the logical aggregation of parameters into packages based on business relevance.
  • the MGC's control of the MG can be directed to the flow on the terminal or terminal.
  • the terminal state ( TerminationState ) descriptor is used to include non-stream specific features on the terminal, such as service state (ServiceState ), event buffer control ( EventBufferControl ), and so on.
  • a feature specific to the terminal upstream is included by a Media descriptor, which may contain a number of Stream descriptors.
  • Each stream descriptor is for a single stream and contains local control (LocalControl), local (Local) and remote (Remote) descriptors.
  • the local control descriptor is used to include flow-related control information such as mode (Mode), reserved group (ReservedGroup), and reserved value (ReserveValue).
  • the local and remote descriptors are respectively used to include features of the stream received by the local end and the remote end, such as an address and a port, a codec algorithm, and the like, and the description form of the SDP is specifically adopted.
  • the method for adjusting a gain includes the following steps.
  • the media gateway receives, from the media gateway controller, control information that adjusts a gain of the signal based on a direct setting manner or a relative current incremental manner.
  • the media gateway performs gain adjustment on the corresponding signal according to the control information.
  • Embodiment 1 of the embodiment of the present invention is a diagrammatic representation of Embodiment 1 of the embodiment of the present invention.
  • adding a parameter to a specific signal indicates that the gain of the specific signal is adjusted, and the parameter is named as a gain adjustment parameter.
  • a specific signal such as Play, Play Collect, PlayRecord, etc.
  • the MGC needs to indicate to the MG to adjust the gain of the specific signal
  • the MGC sends the Play signal and its gain adjustment parameter to the MG, and the MG
  • the Play signal and its gain adjustment parameters adjust the gain of the Play signal on the MG.
  • the gain adjustment parameter may specifically be: 1.
  • Gain Delta (identified as gd) parameter, whose value represents the increment of the signal to be adjusted relative to the current gain, that is, the gain is adjusted relative to the current value increment.
  • This parameter can be an integer (Integer) type in decibel or as a percentage.
  • the meaning of the value is: Take a positive value to represent the decibel or percentage relative to the current gain; take a negative value to represent the decibel or percentage relative to the current gain; take 0 to be relative to the current gain. The default is 0.
  • Absolute Gain (marked as ag) parameter, whose value represents the absolute value of the signal to be adjusted, that is, the gain is adjusted based on the direct setting mode.
  • This parameter can be an integer (Integer) type in decibel.
  • Embodiment 2 of the embodiment of the present invention is a diagrammatic representation of Embodiment 2 of the embodiment of the present invention.
  • Gain Adjustment Information (gai).
  • the signal further includes the following parameters:
  • the adjustment object can be a signal identifier (signal Identifier, identifier si), a signal list identifier (Signal List Identifier, identifier sli), a media resource identifier (Media)
  • Resource Identifier identified as mri
  • mri Resource Identifier
  • the adjustment information can be represented by a parameter.
  • the parameter is named as the gain adjustment parameter.
  • Gain Delta identified as gd
  • This parameter can be an integer (Integer) type in decibel or as a percentage.
  • the meaning of the value is: Take a positive value to represent the decibel or percentage relative to the current gain; take a negative value to represent the decibel or percentage relative to the current gain; take 0 to be relative to the current gain. The default is 0.
  • Absolute Gain (marked as ag) parameter, whose value represents the absolute value of the signal to be adjusted, that is, the gain is adjusted based on the direct setting mode.
  • This parameter can be an integer
  • the MGC may send the above gai signal to the MG, and set the parameters si, sli, and/or mri of the signal to the corresponding signal identifier and signal list.
  • the identifier or the media resource identifier, and the parameter gd of the signal is set to be an increment of the gain to be adjusted relative to the current gain, or the parameter ag of the signal is set to be an absolute value of the gain to be adjusted.
  • a schematic structural diagram of a system includes: a media gateway 21, and a media gateway controller 22.
  • the media gateway 21 may further include: a receiving unit 211, a calculating unit 212, and an adjusting unit 213.
  • the media gateway controller 22 sends control information for adjusting the gain of the signal based on the direct setting mode or the current value increment mode to the receiving unit 211 of the media gateway 21; the adjusting unit 213, according to the control information received by the receiving unit 211 Gain adjustment is performed on the corresponding signal.
  • the adjustment manner is specifically: the calculating unit 212 calculates the to-be-adjusted gain according to the control information and the current gain of the signal.
  • the adjusting unit 213 adjusts the gain of the corresponding signal according to the generation adjustment gain calculated by the calculating unit 212.
  • the adjustment mode is specifically: the adjusting unit 213 directly adjusts the gain of the signal to the to-be-adjusted gain, and the computing unit is not required in the media gateway 21. 212.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)

Abstract

La présente invention porte, dans un mode de réalisation, sur un procédé de commande de gain de signal, sur un système de communication, sur une passerelle multimédia (MG) et sur un dispositif de commande de passerelle multimédia (MGC). La passerelle multimédia (MG) reçoit d'un dispositif de commande de passerelle multimédia (MGC) les informations de commande pour régler le gain de signal sur la base du mode de configuration directe ou du mode incrémental par rapport à la valeur actuelle du MCG. La passerelle multimédia (MG) effectue le réglage de gain sur le signal correspondant qui doit être réglé selon les informations de commande. Le dispositif de commande de passerelle multimédia (MGC) envoie les informations de commande à la passerelle multimédia (MG) par l'intermédiaire du protocole de commande de passerelle (multimédia) étendu pour mettre en œuvre le réglage de gain.
PCT/CN2009/073169 2008-08-14 2009-08-10 Procédé de commande de gain de signal, système de communication, passerelle multimédia et dispositif de commande de passerelle multimédia WO2010017758A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/026,934 US20110134785A1 (en) 2008-08-14 2011-02-14 Signal gain control method, system, media gateway and media gateway controller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810142465.5 2008-08-14
CN 200810142465 CN101651663A (zh) 2008-08-14 2008-08-14 信号增益控制方法、系统、媒体网关及其控制器

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US13/026,934 Continuation US20110134785A1 (en) 2008-08-14 2011-02-14 Signal gain control method, system, media gateway and media gateway controller

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WO2010017758A1 true WO2010017758A1 (fr) 2010-02-18

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CN102123212B (zh) * 2011-03-18 2015-08-12 中兴通讯股份有限公司 为普通终端提供会议电话功能的方法及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048769A1 (fr) * 2004-11-03 2006-05-11 Telefonaktiebolaget Lm Ericsson (Publ) Nouveau descripteur de typologie h.248.1
CN101022545A (zh) * 2006-02-14 2007-08-22 华为技术有限公司 一种通过h.248协议实现多媒体播放的方法及系统
CN101068289A (zh) * 2007-06-21 2007-11-07 中兴通讯股份有限公司 在接入网关中实现语音音量自动调节的方法和装置
CN101207651A (zh) * 2006-12-18 2008-06-25 中兴通讯股份有限公司 调节音量和静音方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048769A1 (fr) * 2004-11-03 2006-05-11 Telefonaktiebolaget Lm Ericsson (Publ) Nouveau descripteur de typologie h.248.1
CN101022545A (zh) * 2006-02-14 2007-08-22 华为技术有限公司 一种通过h.248协议实现多媒体播放的方法及系统
CN101207651A (zh) * 2006-12-18 2008-06-25 中兴通讯股份有限公司 调节音量和静音方法
CN101068289A (zh) * 2007-06-21 2007-11-07 中兴通讯股份有限公司 在接入网关中实现语音音量自动调节的方法和装置

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