WO2007054011A1 - Procede de commutation de l'etat de terminaison dans une passerelle media - Google Patents

Procede de commutation de l'etat de terminaison dans une passerelle media Download PDF

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Publication number
WO2007054011A1
WO2007054011A1 PCT/CN2006/002841 CN2006002841W WO2007054011A1 WO 2007054011 A1 WO2007054011 A1 WO 2007054011A1 CN 2006002841 W CN2006002841 W CN 2006002841W WO 2007054011 A1 WO2007054011 A1 WO 2007054011A1
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WO
WIPO (PCT)
Prior art keywords
terminal
service
media gateway
change command
state
Prior art date
Application number
PCT/CN2006/002841
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English (en)
French (fr)
Inventor
Yangbo Lin
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CN2006800119103A priority Critical patent/CN101156398B/zh
Publication of WO2007054011A1 publication Critical patent/WO2007054011A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0016Arrangements providing connection between exchanges
    • H04Q3/0025Provisions for signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/102Gateways
    • H04L65/1023Media gateways
    • H04L65/103Media gateways in the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/102Gateways
    • H04L65/1033Signalling gateways
    • H04L65/104Signalling gateways in the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/102Gateways
    • H04L65/1043Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1101Session protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H04M7/0081Network operation, administration, maintenance, or provisioning
    • H04M7/0084Network monitoring; Error detection; Error recovery; Network testing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/12Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/125Details of gateway equipment
    • H04M7/1255Details of gateway equipment where the switching fabric and the switching logic are decomposed such as in Media Gateway Control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0016Arrangements providing connection between exchanges
    • H04Q3/0062Provisions for network management
    • H04Q3/0087Network testing or monitoring arrangements

Definitions

  • the present invention relates to packet network technology, and in particular to a method and system for switching a termination state in a media gateway. Background of the invention
  • the Next Generation Network is a service convergence network that provides a variety of services such as fixed mobile voice, data and video services on a packet network.
  • the Media Gateway Controller (MGC) and Media Gateway (MG) are two key components in a packet network.
  • the media gateway is responsible for the service bearer function, which mainly converts media of different access modes into media suitable for transmission over an Internet Protocol (IP) network, such as Real-time Transport Protocol (RTP/RTCP). flow.
  • IP Internet Protocol
  • RTP/RTCP Real-time Transport Protocol
  • the media gateway controller is responsible for the call control function, thereby separating the call control plane and the service bearer plane, thereby fully sharing network resources, upgrading equipment and expanding services, and greatly reducing development and maintenance costs.
  • FIG 1 is a schematic diagram of a relatively common MG and MGC networking.
  • the Media Gateway Control Protocol is the main protocol for communication between the MG and the MGC.
  • GCP Gateway Control Protocol
  • MGCP Media Gateway Control Protocol
  • MGCP Media Gateway Control Protocol
  • Termination The terminal is further divided into physical terminals and temporary (Ephemeral) terminals.
  • the former represents some physical entities with semi-permanent existence, such as time division multiplexing.
  • TDM Time Division Multiplex
  • RTP Real-time Transport Protocol
  • Context can contain multiple terminals, so Topology is used to describe the relationship between multiple terminals in a context. For a terminal that has not been associated with other terminals, one is called empty. (Null) The special context of the context is included.
  • the MG creates and releases the context according to the commands of the MGC.
  • the context is created by adding the first terminal to the context, and is released by removing the last terminal from the context.
  • Command parameters include Add, Modify, Subtract, Move, AuditValue, AuditCapabilities, Notify, and ServiceChange.
  • Command parameter also known as descriptor
  • the media gateway control protocol allows the terminal to have optional attributes, events, signals, and statistics through the package, and implements support for terminals having different characteristics.
  • the add command is used by the MGC to indicate to the MG to add a terminal to a context.
  • the modification command is used by the MGC to indicate to the MG that the attributes, events, and signals of the terminal are changed;
  • the pruning command is used by the MGC to indicate to the MG that the connection between the terminal and the context in which it is located is returned, and the statistics about the terminal are returned.
  • a command unlinks the last terminal in a context from its context, it also deletes the context.
  • the move command is used by the MGC to indicate to the MG that a terminal is being transferred from its current context to another context, but cannot be used to remove the terminal from the null context, nor can it be used to transfer the terminal to an empty context.
  • Audit value command is used by the MGC to the MG
  • the current value of the attributes, events, signals, and statistics associated with the terminal is requested and returned by the MG to the MGC.
  • the audit capability command is used by the MGC to request from the MG and the MG returns to the MGC all possible values related to terminal attributes, events, signals, etc. supported by the MG.
  • the MG may use the notification command to report the events occurring in the MG to the MGC.
  • the service change command allows the MG to notify the MGC that the terminal or terminal group is about to leave the service or return to the service, the MGC indicates that the terminal or terminal group that should quit the service or return to the service, the MG notifies the MGC terminal or the terminal group that the capability has changed, and the MGC will change the MG.
  • the control is transferred to another MGC, etc., where the terminal ID parameter specifies the terminal that exits the service or returns to the service. When the "Root" terminal ID is used, this command will be applied to the entire MG.
  • the terminal can be in one of the following three service states: InService, OutOfService, and Test.
  • InService indicates that the terminal is available or is being used for normal communication
  • the status of the OutOfService indicates that the terminal is unavailable for communication
  • the Test status indicates that the terminal is being tested. Switching between terminal service states is generally changed through service
  • the ServiceChange command includes a series of parameters such as Method, Reason, and Delay.
  • the Method parameter can be Graceful, Forced, Restarted, Disconnected, Handoff, or Failover. Elegance means that the entire MG or one of the terminals will exit the service after the specified delay; forcibly means that the entire MG or one of the terminals suddenly exits the service; the restart means that the entire MG or one of the terminals will be The service is resumed after the specified delay; the interruption means that the MG loses communication with an MGC but then resumes communication with the same MGC; the handover means that the MGC will hand over control of one MG to another MGC; the failure refers to the primary MG.
  • the failure will be taken over by the standby MG, or the MG finds that the primary MGC has failed and seeks control of the standby MGC.
  • the Reason parameter provides further explanation for the Method parameter, and the Delay parameter provides the specified delay for the above method. Other parameters are not mentioned here.
  • the service status of the terminal in the MG can be switched by using the ServiceChange command.
  • the service status of the entire MG or one of the terminals can be switched to the InService state by the MG or by the MGC using the Restart of the ServiceChange command; it can be used by the MG or by the MGC.
  • the Graceful or Forced mode of the ServiceChange command switches the service state of the entire MG or one of the terminals to the OutOfService state.
  • the MG uses the ServiceChange command.
  • the Disconnected mode, and the Handoff mode of the ServiceChange command used by the MGC and the MG can actually switch the service state of the MG to the InService state.
  • the Modify command can be issued to switch the service state of the terminal to the test state, because this is by the MGC.
  • the test is initiated, so the MGC knows the current service status of the terminal.
  • the MG performs the 112 line detection, but currently there is no effective means to switch the terminal to the test.
  • the service status is notified to the MGC in a timely manner.
  • the MGC can use the AuditValue command to obtain the service status of the terminal, the real-time status of the service status of the terminal of the MG in the MGC cannot be guaranteed, and the MGC and the MG may not be consistent with the record of the service status of the terminal. And cause problems such as call loss.
  • the switch is currently switched to the OutOfService state, and then it is determined according to the need. To switch to the in-service state (InService), this is actually a redundant switch for the terminal that needs to be restored after the test, thus bringing operational complexity. Summary of the invention
  • the invention discloses a method and a system for switching the state of a terminal in a media gateway.
  • the media gateway and the media gateway controller ensure that the record of the service state of the terminal is consistent.
  • a method for switching a terminal status in a media gateway comprising: transmitting a service change command request for a terminal in a media gateway between a media gateway controller and a media gateway under the media gateway controller, in the service change command clearing Carrying a parameter for indicating that the terminal enters a test state; the media gateway instructs the terminal to perform testing according to the parameter used to indicate that the terminal enters a test state.
  • a system for switching a terminal state in a media gateway comprising: a media gateway controller and a media gateway under its control; wherein: the media gateway controller and the media gateway transmit a service change command request for the terminal in the media gateway,
  • the service change command request carries a parameter for indicating that the terminal enters a test state; the media gateway instructs the terminal to perform testing according to the parameter used to indicate that the terminal enters the test.
  • the present invention also discloses a method and system for switching the state of a terminal in a media gateway, avoiding redundant handover when the terminal ends the test and restores the service state.
  • a method for switching a state of a terminal in a media gateway comprising: transmitting a service change command request for a terminal in a media gateway between a media gateway controller and a media gateway under the media gateway controller, and carrying the request in the service change command request a parameter for indicating that the terminal enters a test state; the media gateway instructs the terminal to perform testing according to the parameter used to indicate that the terminal enters the test state; after the terminal completes the test, according to the terminal needs to resume service or needs to exit Service, by passing a pin between the media gateway controller and the media gateway
  • the service change command request to the terminal directly switches the service status of the terminal to the in-service state or the exit service state.
  • a terminal state system in a switching media gateway comprising a media gateway controller and a media gateway under its jurisdiction, after the terminal in the media gateway completes the test, according to the terminal needs to restore the service or needs to exit the service respectively, the service state of the terminal
  • the service state of the terminal is directly switched to the in-service state or the out-of-service state by transmitting a service change command for the terminal between the media gateway controller and the media gateway.
  • the method and system for implementing the terminal service state in the switching media gateway of the present invention have the following beneficial effects:
  • the terminal when the media gateway tests the terminal therein, the terminal can be switched to the test conveniently and in time.
  • the status information is notified to the media gateway controller to ensure that the record in the media gateway is consistent with the record of the terminal service status in the media gateway controller.
  • the service state of the terminal can be directly switched to the in-service state or the exiting service state as needed, thereby avoiding redundant state switching steps, and thus operating the cylinder It works.
  • Figure 1 is a schematic diagram of a MG and MGC networking.
  • FIG. 2 is a schematic diagram of the handover of the terminal to the test state initiated by the MG in the first embodiment of the present invention.
  • Figure 3 is a diagram showing the switching of the terminal to the test state initiated by the MGC in the second embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a terminal initiated by the MG to switch a terminal to a test state in the third embodiment of the present invention.
  • FIG. 5 is a diagram of switching a terminal to a test state initiated by an MGC in a fourth embodiment of the present invention. Schematic diagram.
  • Fig. 6 is a diagram showing a state in which a terminal is switched from a test state to a service state initiated by an MG in the fifth embodiment of the present invention.
  • Figure 7 is a diagram showing the switching of a terminal from a test state to a service state initiated by an MGC in a sixth embodiment of the present invention.
  • Figure 8 is a diagram showing the MG initiating a handover of a terminal from a test state to an exit service state in the seventh embodiment of the present invention.
  • Figure 9 is a diagram showing the switching of a terminal from a test state to an exit service state initiated by an MGC in an eighth embodiment of the present invention. Mode for carrying out the invention
  • the service state of the terminal is switched to the test by extending the parameter value of the service change command (Test). ) state, and allows the MGC and MG to synchronize the record of the monthly service status of the terminal in time.
  • ServiceChange service change
  • Test parameter value of the service change command
  • the reason (Reason) parameter of the service change command is extended, and the restart is further described in the restart mode.
  • the reason is that the terminal is being tested.
  • the Test state is essentially a special InService state, except that the terminal is not in the normal communication but serves the test. So switching the Terminal Services state to the Test state is similar to switching to the service.
  • the (InService) state is implemented by the Restart of the ServiceChange command. It is necessary to extend the value of the Reason parameter to further indicate that it is switched to the Test state. For example, you can name the extension of the Reason parameter as Testing.
  • Fig. 2 is a diagram showing the switching of the terminal to the test state initiated by the MG in the first embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in Fig. 1, and includes the MGC and the MG under its jurisdiction.
  • the MG when the MG needs to test one (or some) of the terminals, the MG sends a service change to the terminal to control its own MGC.
  • the (Res) and Reason (Reason) parameters take the test (Testing), and other parameters are not described here.
  • the MGC After obtaining the service change (ServiceChange) command request, the MGC switches the service state of the terminal to the test state and sends a service change to the MG.
  • FIG. 3 is a schematic diagram showing the switching of the terminal to the test state initiated by the MGC in the second embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in FIG. 1, and includes the MGC and the MG under its jurisdiction.
  • the MGC when the MGC needs to instruct the MG to test one (or some) of the terminals, the MGC sends a Service Change command request for the terminal to the MG, with a Method parameter.
  • the value is Restart (Res) and the Reason (Reason) parameter is Test (Testing). Other parameters are not described here.
  • the MGC After the MG obtains the service change (ServiceChange) command request, the MG The MGC sends a service change (ServiceChange) command response, and simultaneously starts the corresponding terminal on the MG to perform the testing process. After receiving the command response from the MG, the MGC switches the service state of the corresponding terminal in the MG to a Test state.
  • ServiceChange service change
  • the method of the ServiceChange command may be extended, and the value of one parameter directly indicates that the terminal is being tested. For example, you can name the extension of the (Method) parameter as Testing.
  • Fig. 4 is a diagram showing the MG-initiated handover of the terminal to the test state in the third embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in Fig. 1, and includes the MGC and the MG under its jurisdiction.
  • the MG when the MG needs to test one of the terminals (or some), the MG sends a ServiceChange command request for the terminal to the MGC controlling itself, and the Method parameter is taken. The value is Testing, and other parameters are not described here.
  • the MGC switches the service state of the corresponding terminal to a test state, and sends a service change (ServiceChange) command response to the MG.
  • ServiceChange ServiceChange
  • FIG. 5 is a schematic diagram showing switching of a terminal to a test state initiated by an MGC in a fourth embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in FIG. 1, and includes the MGC and the MG under its jurisdiction.
  • the MGC when the MGC needs to instruct the MG to test one (or some) of the terminals, the MGC sends a service change (ServiceChange) command request to the MG to the MG, and the method (Method) parameter is taken. The value is Testing, and other parameters are not described here.
  • the MG After receiving the service change command request, the MG sends a service change (ServiceChange) command response to the MGC, and simultaneously starts the corresponding terminal on the MG to perform a test process.
  • ServiceChange ServiceChange
  • the MGC After receiving the command response from the MG, the MGC switches the service state of the corresponding terminal in the MG to a test state. After the terminal test is completed, it is necessary to switch its service status to other service status according to different requirements. Because the Test state is essentially a special InService state, the switch from the Test state to the other service state can also be defined by the extended protocol, using a similar slave service. The way in which the (InService) state switches to other service states is as follows:
  • Fig. 6 is a diagram showing the state in which the terminal is switched from the test state to the in-service state initiated by the MG in the fifth embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in Fig. 1, and includes the MGC and the MG under its jurisdiction.
  • the MG may send a service change (ServiceChange) command request for the terminal to the MGC, and the method (Method) parameter takes a value of restart (Restart), and other parameters are not here.
  • ServiceChange service change
  • Method Method
  • Restart restart
  • the MGC changes the state of the corresponding terminal in the MG to the in-service state (InService).
  • the MGC returns a service change command response to the MG, and the corresponding terminal in the B' MG restores the monthly service. This allows the MGC and the MG to synchronize the records of the service status of the terminal (in the service at this time).
  • FIG. 7 is a diagram showing a state in which a terminal is switched from a test state to a service state initiated by an MGC in the sixth embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in FIG. 1, and includes the MGC and the MG under its jurisdiction.
  • the MGC may send a service change (ServiceChange) command request to the MG, and the method (Method) parameter takes a value of restart (Restart), and other parameters are not here.
  • ServiceChange ServiceChange
  • Method Method
  • Restart restart
  • the MGC When the MGC receives the service change command response returned by the MG, the state of the corresponding terminal in the MG is changed to the in-service state (InService).
  • InService the in-service state
  • the (ServiceChange) command gracefully (Graceful) or Forced (Forced) mode switches the service state of the terminal to the OutOfService state.
  • Figure 8 is a diagram showing the MG-initiated handover of the terminal from the test state to the exit service state in the seventh embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in Fig. 1, and includes the MGC and the MG under its jurisdiction.
  • the MG may send a service change (ServiceChange) command request to the MGC, and the method (Method) parameter is graceful (Graceful) or mandatory.
  • ServiceChange ServiceChange
  • Method Method
  • the MGC delays or immediately changes the state of the corresponding terminal in the MG to the OutOfService state.
  • the MGC returns a service change command response to the MG, and the corresponding terminal in the MG delays or immediately exits the service.
  • FIG. 9 is a diagram showing the switching of a terminal from a test state to an exit service state initiated by an MGC in an eighth embodiment of the present invention.
  • the system structure of this embodiment is the same as that shown in Fig. 1, and includes the MGC and the MG under its jurisdiction.
  • the MGC may send a service change command request to the MG for the terminal, and the method parameter is graceful or forced. Other parameters are not described here.
  • the MG returns a service change command response to the MGC, and will respond to the terminal exit delay or immediate service.
  • the MGC receives the service change command response returned by the MG, the state of the corresponding terminal in the MG is delayed or immediately changed to the exit service.
  • the present invention is based on The service requirement of the terminal end test directly determines the switching mode of the service state, that is, the terminal service state is switched from the test state to the service (InService) directly through the service change (ServiceChange) command restart (Restrat) mode, the terminal The state of the service is switched from the Test state to the OutOfService state directly through the Graceful or Forced mode of the ServiceChange command.
  • the MG when the MG tests one of the terminals (or some), it can conveniently and timely notify the MGC of the information that the terminal has been switched to the test state to ensure the MG. Consistent with the record in the MGC regarding the status of the terminal service.
  • the media gateway controller instructs the media gateway to test one (or some) of the terminals, it may adopt a form that is consistent with other terminal state switching.
  • the service state of the terminal after the end of the terminal test, the service state of the terminal can be directly switched to the InService state or the OutOfServic state as needed, thereby avoiding unnecessary state switching steps, and thus the operation is simple. effective.

Description

一种切换媒体网关中终端状态的方法和系统 技术领域
本发明涉及分组网络技术, 具体来说, 涉及一种切换媒体网关中终 端 (Termination )状态的方法和系统。 发明背景
下一代网络( NGN )是一个以分组网络为承载,提供固定移动话音、 数据和视频业务等多种业务的业务融合网络。 媒体网关控制器 (MGC, Media Gateway Controller )和媒体网关 (MG, Media Gateway )是分组 网络中的两个关键构件。 媒体网关负责业务承载功能, 主要是将不同的 接入方式的媒体转化为适合在互联网协议(IP, Internet Protocol ) 网络 上传送的媒体, 例如实时传输协议 ( Real-time Transport Protocol , RTP/RTCP ) 流。 而媒体网关控制器负责呼叫控制功能, 藉此实现呼叫 控制平面和业务承载平面的分离, 从而充分共享网络资源, 筒化设备升 级和业务扩展, 大大降低开发和维护成本。
图 1是目前比较常见的一种 MG和 MGC组网的示意图。 媒体网关 控制协议是 MG和 MGC之间通信的主要协议, 如图 1所示, 目前应用 较为广泛的有两种协议:网关控制协议( GCP, Gateway Control Protocol ), 例如 H.248/MeGaCo, 和媒体网关控制协议 ( MGCP , Media Gateway Control Protocol )。
以 H.248 协议为例, MG 上的各种资源被抽象表示为终端
( Termination )。 终端又分为物理(Physical )终端和临时(Ephemeral ) 终端, 前者代表一些具有半永久存在性的物理实体, 例如时分复用
( TDM, Time Division Multiplex )通道等, 后者代表一些在使用时申请 的且在使用后释放的公共资源, 例如实时传输协议(RTP , Real-time Transport Protocol ) 流等。 终端之间的組合被抽象表示为上下文
( Context )„ 上下文中可包含多个终端, 因而以拓朴 ( Topology ) 来描 述一个上下文中的多个终端之间的相互关系。 对于还未与其它终端发生 关联的终端, 由一个称为空 (Null )上下文的特殊上下文来包含。 MG 根据 MGC的命令创建和释放上下文。 上下文通过添加第一个终端到该 上下文中而被创建, 通过从该上下文中移除最后一个终端而被释放。
基于协议的这种抽象模型, 呼叫的接续实际上就是对终端和上下文 的操作。 这种操作通过 MGC和 MG之间的命令 ( Command )请求和响 应来完成。命令类型包括添加 ( Add )、修改( Modify )、删减( Subtract )、 移动(Move )、 审计值( AuditValue )、 审计能力 ( AuditCapabilities )、 通 报( Notify )、 服务改变 ( ServiceChange )。 命令参数, 也称为描述符
( Descriptor ),被分类为属性( Property )、信号( Signal )、 事件 ( Event )、 统计( Statistic )。 具有业务相关性的参数逻辑上聚合成为包(Package ), 媒体网关控制协议通过包允许终端具有可选的属性、事件、信号和统计, 实现了对具有不同特点的终端的支持。
其中, 添加命令用于 MGC向 MG指示向一个上下文中添加终端, 使用添加命令向一个上下文添加第一个终端时, 同时也就相当于创建了 一个上下文。 修改命令用于 MGC向 MG指示更改终端的属性、 事件和 信号; 删减命令用于 MGC向 MG指示解除一个终端与它所处上下文间 的连接, 并返回有关这个终端的统计信息, 当使用该命令解除一个上下 文中最后一个终端与它所处上下文间的联系时, 同时也就相当于删除了 该上下文。 移动命令用于 MGC向 MG指示将一个终端从它当前所在上 下文中转移到另一个上下文中, 但不能用于将终端从空上下文中移走, 也不能用于将终端转移到空上下文中。 审计值命令用于由 MGC向 MG 请求并由 MG向 MGC返回与终端相关的属性、 事件、 信号和统计的当 前值。 审计能力命令用于 MGC向 MG请求并由 MG向 MGC返回 MG 所支持的关于终端属性、 事件及信号等的所有可能值。 MG可使用通报 命令向 MGC报告该 MG中发生的事件。 服务改变命令允许 MG通知 MGC, 终端或终端组将要退出服务或返回服务、 MGC指示应退出服务 或返回服务的终端或终端组、 MG通知 MGC终端或终端组的能力已发 生改变、 MGC将对 MG的控制转移到另一个 MGC等, 其中的终端 ID 参数规定了退出服务或返回服务的终端, 当采用 "根(Root ) "终端 ID时, 则此命令将作用于整个 MG。
根据 H.248协议中终端状态 ( TerminationState )描述符的服务状态
( ServiceState )属性的定义, 终端可以处于以下三种良务状态之一种: 在服务中 ( InService )、 退出服务 ( OutOfService )和测试 ( Test )。 其中, 在服务中 (InService )状态表示该终端可用于或正用于正常通信, 退出 服务 ( OutOfService )状态表示该终端不可用于通信, 测试 ( Test )状态 表示该终端正被测试中。 终端服务状态之间的切换一般是通过服务改变
( ServiceChange )来进行的 (其中, 切换到 Test状态是由 Modify命令 来进行的;)。
服务改变( ServiceChange )命令包括方式( Method )、原因( Reason )、 延时( Delay )等一系列参数。方式( Method )参数可取值优雅( Graceful )、 强制 ( Forced )、 重启( Restart )、 中断(Disconnected ), 移交(Handoff) 或失效(Failover )。 其中, 优雅指整个 MG或其中的某个终端将在指定 的延时之后退出服务; 强制指整个 MG或其中的某个终端突发地退出服 务; 重启指整个 MG或其中的某个终端将在指定的延时之后恢复服务; 中断指 MG与某个 MGC失去通信但随后又与同一 MGC恢复了通信; 移交指 MGC将对某个 MG的控制移交给另一个 MGC;失效指主用 MG 失效将由备用 MG接管, 或 MG发现主用 MGC失效而寻求备用 MGC 的控制。 原因 (Reason )参数为上述方式(Method )参数提供进一步的 说明, 而延时 (Delay )参数为上述方式 (Method )提供指定的延时, 其它参数这里不做赞述。
由此可见, 通过使用服务改变 (ServiceChange )命令可以切换 MG 中终端的服务状态。 例如, 可以由 MG 或由 MGC 使用服务改变 ( ServiceChange )命令的重启 ( Restart )方式将整个 MG或其中的某个 终端的服务状态切换到在服务中 (InService )状态; 可以由 MG 或由 MGC使用服务改变(ServiceChange )命令的优雅 ( Graceful )方式或强 制 (Forced )方式将整个 MG或其中的某个终端的服务状态切换到退出 服务( OutOfService )状态; 另外由 MG使用服务改变( ServiceChange ) 命令的中断( Disconnected )方式, 以及由 MGC和 MG配合使用服务改 变 (ServiceChange )命令的移交(Handoff ) 方式, 实际上也可将 MG 的服务状态切换到在服务中 (InService )状态。
当 MGC需要指示 MG对其中的某个终端进行某种测试, 例如进行 导通检测时, 可以下发修改(Modify )命令将该终端的服务状态切换到 测试(Test )状态, 因为这是由 MGC发起的测试, 所以 MGC了解该终 端当前的服务状态。 然而当 MG自己发起的对其中的某个终端进行的某 种测试, 例如通过网管系统或维护后台指示 MG进行 112线路检测时, 目前却缺乏有效手段可以将该终端已被切换到测试 ( Test )服务状态及 时通知给 MGC。 虽然 MGC可以使用审计值( AuditValue )命令来获取 终端所处的服务状态, 但不能保障 MGC中关于该 MG的终端的服务状 态的实时性, 并可能因为 MGC与 MG关于该终端服务状态的记录不一 致而造成呼损等问题。 另外在现有技术中, 对终端的测试结束后, 目前 是先统一切换到退出服务(OutOfService )状态, 再根据需要决定是否 要切换到在服务中 (InService )状态, 这对测试后即需恢复服务的终端 实际上做了多余切换, 因而带来了操作上的复杂性。 发明内容
本发明公开了一种切换媒体网关中终端状态的方法和系统, 在对终 端进行测试时, 保证媒体网关和媒体网关控制器关于终端的服务状态的 记录一致。
一种切换媒体网关中终端状态的方法, 包括: 在媒体网关控制器与 该媒体网关控制器管辖的媒体网关之间传递针对媒体网关中终端的服 务改变命令请求, 在该服务改变命令清求中携带用于指示该终端进入测 试状态的参数; 所述媒体网关根据所述用于指示该终端进入测试状态的 参数指示终端进行测试。
一种切换媒体网关中终端状态的系统, 包括媒体网关控制器及其管 辖的媒体网关; 其中: 所述媒体网关控制器与所述媒体网关之间传递针 对媒体网关中终端的服务改变命令请求 , 在该服务改变命令请求中携带 用于指示该终端进入测试状态的参数; 所述媒体网关根据所述用于指示 该终端进入测试的参数指示终端进行测试。
本发明还公开了一种切换媒体网关中终端状态的方法和系统, 在对 终端结束测试恢复服务状态时, 避免多余的切换。
一种切换媒体网关中终端状态的方法, 包括: 在媒体网关控制器与 该媒体网关控制器管辖的媒体网关之间传递针对媒体网关中终端的服 务改变命令请求, 在该服务改变命令请求中携带用于指示该终端进入测 试状态的参数; 所述媒体网关根据所迷用于指示该终端进入测试状态的 参数指示终端进行测试; 在对该终端完成测试之后, 根据该终端需要恢 复服务或需要退出服务, 通过在媒体网关控制器与媒体网关之间传递针 对该终端的服务改变命令请求直接切换该终端的服务状态为在服务中 状态或退出服务状态。
一种切换媒体网关中终端状态系统, 包括媒体网关控制器及其管辖 的媒体网关, 在对媒体网关中的终端完成测试之后, 根据该终端需要恢 复服务或需要退出服务分别将该终端的服务状态, 通过在媒体网关控制 器与媒体网关之间传递针对该终端的服务改变命令请求直接切换该终 端的服务状态为在服务中状态或退出服务状态。
实施本发明的切换媒体网关中终端服务状态的方法和系统, 具有如 下有益效果: 在本发明中, 当媒体网关对其中的终端进行测试时, 可以 方便、 及时地将该终端已被切换到测试状态的信息通知给媒体网关控制 器, 以保证媒体网关中与媒体网关控制器中关于该终端服务状态的记录 一致。
另外, 采用本发明的方法和系统, 当终端测试结束后, 可以^ ^据需 要直接将该终端的服务状态切换到在服务中状态或退出服务状态, 避免 了多余的状态切换步驟, 因而操作筒便有效。 附图简要说明
图 1是一种 MG和 MGC组网的示意图。
图 2是本发明第一实施例中由 MG发起的将终端切换到测试状态的 示意图。
图 3是本发明第二实施例中由 MGC发起的将终端切换到测试状态 的示意图。
图 4是本发明第三实施例中由 MG发起的将终端切换到测试状态的 示意图。
图 5是本发明第四实施例中由 MGC发起的将终端切换到测试状态 的示意图。
图 6是本发明第五实施例中由 MG发起的将终端从测试状态切换到 在服务中状态的示意图。
图 7是本发明第六实施例中由 MGC发起的将终端从测试状态切换 到在服务中状态的示意图。
图 8是本发明第七实施例中由 MG发起的将终端从测试状态切换到 退出服务状态的示意图。
图 9是本发明第八实施例中由 MGC发起的将终端从测试状态切换 到退出服务状态的示意图。 实施本发明的方式
以下结合附图及实施例,对本发明进行进一步详细说明。应当理解, 此处所描述的具体实施例仅仅用于解释本发明, 并不用于限定本发明。
因 为终端服务状态之间 的切换一般是通过服务改变 ( ServiceChange ) 命令来进行的, 在本发明中, 通过扩展服务改变 ( ServiceChange )命令的参数取值来实现将终端的服务状态切换到测试 ( Test )状态, 并让 MGC和 MG之间能及时同步关于该终端所处月良务 状态的记录。
进一步, 在本发明中, 还通过区分终端在测试结束后是要恢复服务 还是退出服务, 直接实现将终端的服务状态从测试(Test )状态切换到 在服务中 (InService )或退出服务( OutOfService )状态。 试状态的具体内容。
在本发明的第一种方法中, 扩展服务改变(ServiceChange )命令的 原因 (Reason ) 参数取值, 对重启 (Restart )方式进一步说明该次重启 的原因是该终端正在测试中。
测试( Test )状态从本质上来讲也是一种特殊的在服务中( InService ) 状态, 只不过这时终端不是月艮务于正常的通信而是服务于测试。 因此可 以将终端服务状态切换到测试 (Test ) 状态类似于切换到在服务中
( InService )状态,采用服务改变( ServiceChange )命令的重启( Restart ) 方式来实现, 需要通过对原因 (Reason )参数取值进行扩展以进一步说 明是切换到测试(Test )状态。 例如可以将该原因 (Reason )参数的扩 展取值命名为测试中 ( Testing )。
图 2示出了本发明第一实施例中由 MG发起的将终端切换到测试状 态的示意图。 本实施例的系统结构与图 1所示的结构相同, 包括 MGC 及其管辖的 MG。 如图 2所示, 当 MG需要对其中的某个(或某些)终 端进行测试时, MG 向控制自己的 MGC发送针对该终端的服务改变
( ServiceChange ) 命令请求, 附带方式 ( Method ) 参数取值为重启
( Restart )、 原因 (Reason ) 参数取值为测试中 (Testing ), 其它参数这 里不做赘述。 MGC在得到该服务改变 ( ServiceChange )命令请求后 , 将该终端的服务状态切换为测试(Test )状态, 并向 MG发送服务改变
( ServiceChange )命令响应。 此时, 对该 MG上的对应终端启动测试过 程。
图 3示出了本发明第二实施例中由 MGC发起的将终端切换到测试 状态的示意图。本实施例的系统结构与图 1所示的结构相同, 包括 MGC 及其管辖的 MG。如图 3所示, 当 MGC需要指示 MG对其中的某个(或 某些)终端进行测试时, MGC 向该 MG发送针对该终端的 良务改变 ( ServiceChange ) 命令请求, 附带方式 (Method ) 参数取值为重启 ( Restart )、 原因 (Reason ) 参数取值为测试中 (Testing ), 其它参数这 里不做赘述。 MG在得到该服务改变(ServiceChange )命令请求后, 向 MGC发送服务改变( ServiceChange )命令响应, 并同时启动该 MG上 的对应终端进行测试过程。 当 MGC接收到来自 MG的命令响应后, 将 该 MG中对应终端的服务状态切换为测试( Test )状态。
在本发明的第二种方法中, 可以扩展服务改变(ServiceChange )命 令的方式 ( Method )参数取值, 以一个参数取值直接表示该终端正在测 试中。例如可以将该( Method )参数的扩展取值命名为测试中( Testing )。
图 4示出了本发明第三实施例中由 MG发起的将终端切换到测试状 态的示意图。 本实施例的系统结构与图 1所示的结构相同, 包括 MGC 及其管辖的 MG。 如图 4所示, 当 MG需要对其中的某个(或某些)终 端进行测试时, MG 向控制自己的 MGC发送针对该终端的服务改变 ( ServiceChange )命令请求, 附带方式 ( Method ) 参数取值为测试中 ( Testing ) , 其它参数这里不做赘述。 MGC 收到该服务改变 ( ServiceChange )命令请求后 , 将该对应终端的服务状态切换为测试 ( Test )状态, 并向 MG发送服务改变 ( ServiceChange )命令响应。 MG 收到该服务改变命令响应后 , 对该对应终端启动测试过程。
图 5示出了本发明第四实施例中由 MGC发起的将终端切换到测试 状态的示意图。本实施例的系统结构与图 1所示的结构相同, 包括 MGC 及其管辖的 MG。如图 5所示, 当 MGC需要指示 MG对其中的某个(或 某些)终端进行测试时, MGC 向该 MG发送针对该终端的服务改变 ( ServiceChange )命令请求, 附带方式 ( Method ) 参数取值为测试中 ( Testing ) , 其它参数这里不做赘述。 MG 在得到该服务改变 ( ServiceChange )命令请求后, 向 MGC发送服务改变( ServiceChange ) 命令响应, 并同时启动该 MG上的对应终端进行测试过程。 当 MGC接 收到来自 MG的命令响应后,将该 MG中对应终端的服务状态切换为测 试(Test )状态。 在终端测试完成后, 需要根据不同的需求将其服务状态切换到其他 的服务状态。 因为测试(Test )状态从本质上来讲也是一种特殊的在服 务中 (InService )状态, 所以终端服务状态从测试(Test )状态切换到 其它服务状态也可以通过扩展协议定义, 采用类似从在服务中 ( InService )状态切换到其它服务状态的方式, 具体如下:
若终端的测试结束后该终端需要恢复服务用于正常的通信, 可以使 用服务改变 ( ServiceChange )命令的重启 (Restart )方式将终端的服务 状态切换到在服务中 (InService )状态。
图 6示出了本发明第五实施例中由 MG发起的将终端从测试状态切 换到在服务中状态的示意图。 本实施例的系统结构与图 1所示的结构相 同, 包括 MGC及其管辖的 MG。 如图 6所示, 当 MG的终端的测试完 成后, MG可以向 MGC发送针对该终端的服务改变 (ServiceChange ) 命令请求, 附带方式(Method )参数取值为重启(Restart ), 其它参数这 里不做赘述。 则 MGC 将该 MG 中对应终端的状态改成在服务中 ( InService )状态。 MGC向 MG返回服务改变命令响应, 贝' J MG中的 对应终端恢复月良务。 从而使 MGC和 MG之间能及时同步关于该终端所 处服务状态 (此时处于在服务中)的记录。
图 7示出了本发明第六实施例中由 MGC发起的将终端从测试状态 切换到在服务中状态的示意图。 本实施例的系统结构与图 1所示的结构 相同, 包括 MGC及其管辖的 MG。 如图 7所示, 当 MG的终端的测试 完成后, MGC可以向 MG发送针对该终端的服务改变( ServiceChange ) 命令请求, 附带方式(Method )参数取值为重启(Restart ), 其它参数这 里不做赘述。 MG向 MGC返回服务改变命令响应, 并将对应终端恢复 服务。 当 MGC接收到该 MG返回的服务改变命令响应, 则将该 MG中 对应的终端的状态改成在服务中. ( InService )状态。从而使 MGC和 MG 之间能及时同步关于该终端所处服务状态(此时处于在服务中)的记录。 若终端的测试结束后该终端无需要恢复服务, 可以使用服务改变
( ServiceChange )命令的优雅(Graceful )方式或强制(Forced )方式将 终端的服务状态切换到退出服务( OutOfService )状态。
图 8所示是本发明第七实施例中由 MG发起的将终端从测试状态切 换到退出服务状态的示意图。 本实施例的系统结构与图 1所示的结构相 同, 包括 MGC及其管辖的 MG。 如图 8所示, 当 MG的终端的测试完 成后, MG可以向 MGC发送针对该终端的服务改变 (ServiceChange ) 命令请求, 附带方式 (Method ) 参数取值为优雅 (Graceful ) 或强制
( Forced ), 其它参数这里不做赞述。 则 MGC将该 MG中对应的终端的 状态延时或立即改成退出服务(OutOfService )状态。 MGC向 MG返回 服务改变命令响应, 则 MG中的对应终端延时或立即退出服务。
图 9是本发明第八实施例中由 MGC发起的将终端从测试状态切换 到退出服务状态的示意图。本实施例的系统结构与图 1所示的结构相同, 包括 MGC及其管辖的 MG。 如图 9所示, 当 MG的终端的测试完成后, MGC可以向 MG发送针对该终端的服务改变 ( ServiceChange )命令请 求, 附带方式(Method )参数取值为优雅(Graceful )或强制(Forced ), 其它参数这里不做赘述。 MG向 MGC返回服务改变命令响应, 并将对 应终端退出延时或立即月良务。 当 MGC接收到该 MG返回的服务改变命 令响应, 则将该 MG 中对应的终端的状态延时或立即改成退出服务
( OutOfService )状态。
本发明通过对月良务改变(ServiceChange )命令进行扩展, 即增加一 个表示 MG终端处于测试中的参数取值, 来实现将终端的服务状态切换 到测试(Test )状态, 并让 MGC和 MG及时同步关于对应终端服务状 态的记录。 该表示 MG 终端处于测试中的参数取值可以是服务改变 ( ServiceChange ) 命令的重启 (Restart ) 方式下的一个新增的原因 ( Reason )参数取值, 也可以是服务改变(ServiceChange )命令的一个 新增的方式(Method参数取值。 进一步, 本发明根据终端结束测试的服 务需求直接决定其服务状态的切换方式, 即终端服务状态从测试(Test ) 状态切换到在服务中 (InService )直接通过服务改变 (ServiceChange ) 命令的重启 (Restrat ) 方式实现, 终端服务状态从测试 (Test )状态切 换到退出服务(OutOfService )状态直接通过服务改变(ServiceChange ) 命令的优雅 ( Graceful ) 方式或强制 ( Forced ) 方式来实现。
在本发明中, 当 MG对其中的某个(或某些)终端进行测试时, 可 以很方便且及时地将该终端已被切换到测试(Test )状态的信息通知给 MGC, 以保证 MG中与 MGC中关于该终端服务状态的记录一致。 同时 在本发明中, 当媒体网关控制器指示媒体网关对其中的某个(或某些) 终端进行测试时, 可以采用与其它终端状态切换相统一的形式。 另外在 本发明中, 当终端测试结束后, 可以根据需要直接将该终端的服务状态 切换到在服务中 (InService )状态或退出服务( OutOfServic )状态, 避 免了多余的状态切换步骤, 因而操作简便有效。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡 在本发明的精神和原则之内所作的任何修改、 等同替换和改进等, 均应 包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种切换媒体网关中终端状态的方法, 其特征在于, 包括: 在媒体网关控制器与该媒体网关控制器管辖的媒体网关之间传递 针对媒体网关中终端的服务改变命令请求, 在该服务改变命令请求中携 带用于指示该终端进入测试状态的参数;
所述媒体网关根据所述用于指示该终端进入测试状态的参数指示 终端进行测试。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述在该服务改变 命令请求中携带用于指示该终端进入测试状态的参数包括:
设置在服务改变命令请求中用于标识该终端处于测试状态的原因 参数值;
将所述服务改变命令倩求中的原因参数的值设置为所述用于表示 该终端处于测试状态的原因参数值, 并将所述服务改变命令请求中的方 式参数的值设置为重启。
3、 根据权利要求 1 所述的方法, 其特征在于, 所述在该服务改变 命令请求中携带用于指示该终端进入测试状态的参数包括:
设置在服务改变命令请求中用于标识该终端处于测试状态的方式 参数值;
将所述服务改变命令请求中的方式参数的值设置为所述用于表示 该终端处于测试状态的方式参数值。
4、 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述 在媒体网关控制器与该媒体网关控制器管辖的媒体网关之间传递针对 媒体网关中终端的服务改变命令请求包括:
所述媒体网关控制器向所述媒体网关发送针对该终端的服务改变 命令请求; 所述媒
关控制器;
所述媒体网关控制器在接收到所述服务改变命令响应之后, 将所述 媒体网关中所述终端的服务状态切换成测试状态。
5、 根据权利要求 1至 3 中任一项所述的方法, 其特征在于, 在媒 体网关控制器与该媒体网关控制器管辖的媒体网关之间传递针对媒体 网关中终端的服务改变命令请求包括:
所述媒体网关向所述媒体网关控制器发送针对该终端的服务改变 命令请求;
所述媒体网关控制器发送针对该终端的服务改变命令响应给所述 媒体网关;
所述媒体网关控制器在接收到所述服务改变命令请求之后, 将所述 媒体网关中所述终端的服务状态切换成测试状态。
6、 根据权利要求 1所述的方法, 其特征在于, 进一步包括: 在对媒体网关中的终端完成测试之后, 根据该终端需要恢复服务或 需要退出服务, 通过在媒体网关控制器与媒体网关之间传递针对该终端 的服务改变命令请求直接切换该终端的服务状态为在服务中状态或退 出服务状态。
7、 一种切换媒体网关中终端状态的方法, 其特征在于, 包括: 在对媒体网关中的终端完成测试之后, 根据该终端需要恢复服务或 需要退出服务分别将该终端的服务状态, 通过在媒体网关控制器与媒体 网关之间传递针对该终端的服务改变命令请求直接切换该终端的服务 状态为在服务中状态或退出服务状态。
8、 根据权利要求 Ί所述的方法, 其特征在于, 当终端需要恢复服 务时, 切换该终端的服务状态包括: 所述媒体网关控制器向媒体网关发送针对该终端的服务改变命令 请求, 并将该服务改变命令请求中的方式参数的值设置为重启;
所述媒体网关在接收到针对该终端的服务改变命令请求后, 发送针 对该终端的服务改变命令响应至所述媒体网关控制器, 并使该终端恢复 服务;
所述媒体网关控制器在接收到针对该终端的服务改变命令响应后 , 将其关于的该终端的服务状态从测试状态切换成在服务中状态。
9、 根据权利要求 7所述的方法, 其特征在于, 当终端需要恢复服 务时, 切换该终端的服务状态包括:
所述媒体网关向媒体网关控制器发送针对该终端的服务改变命令 请求, 并将该服务改变命令请求中的方式参数的值设置为重启;
所述媒体网关控制器在接收到针对该终端的服务改变命令请求后, 发送针对该终端的服务改变命令响应至所述媒体网关, 并将其关于该终 端的服务状态从测试状态切换成在服务中状态;
所述媒体网关接收到针对该终端的服务改变命令响应后 , 使该终端 恢复服务。
10、 根据权利要求 7所述的方法, 其特征在于, 当终端需要退出服 务时, 切换该终端的服务状态包括:
所述媒体网关控制器向该媒体网关发送针对该终端的服务改变命 令请求, 并将该服务改变命令请求中的方式参数的值设置为优雅或强 制; 关控制器, 并使该终端退出服务;
所述媒体网关控制器在接收到针对该终端的服务改变命令响应之 后, 将其关于该终端的服务状态从测试状态切换成退出服务状态。
11、 根据权利要求 7所述的方法, 其特征在于, 当终端需要退出服 务时, 切换该终端的服务状态包括:
所述媒体网关向媒体网关控制器发送针对该终端的服务改变命令 请求, 并将该服务改变命令请求中的方式参数的值设置为优雅或强制; 所述媒体网关控制器在接收到针对该终端的服务改变命令请求后, 发送针对该终端的服务改变命令响应至所述媒体网关, 并将其关于该终 端的服务状态从测试状态切换成退出服务状态;
所述媒体网关接收到针对该终端的服务改变命令响应后, 使该终端 退出服务。
12、 根据权利要求 7所述的方法, 其特征在于, 所述媒体网关中对 应终端的服务状态被切换成退出服务状态为即时或延时进行。
13、 一种切换媒体网关中终端状态系统, 包括媒体网关控制器及其 管辖的媒体网关, 其特征在于:
所述媒体网关控制器与所述媒体网关之间传递针对媒体网关中终 端的服务改变命令请求, 在该服务改变命令请求中携带用于指示该终端 进入测试状态的参数;
所述媒体网关根据所述用于指示该终端进入测试的参数指示终端 进行测试。
14、 根据权利要求 13 所述的系统, 其特征在于, 所述媒体网关控 制器向所述媒体网关发送针对该终端的服务改变命令请求; 所述媒体网 关发送针对该终端的服务改变命令响应给所述媒体网关控制器; 所述媒 体网关控制器在接收到针对该终端的服务改变命令响应之后, 将该终端 的服务状态切换成测试状态。
15、 根据权利要求 13 所述的系统, 其特征在于, 所述媒体网关向 所述媒体网关控制器发送针对该终端的服务改变命令请求; 所述媒体网 关控制器发送针对该终端的服务改变命令响应给所述媒体网关; 所述媒 体网关控制器在接收到针对该终端的服务改变命令请求之后, 将该终端 的服务状态切换成测试状态。
16、 根据权利要求 13 所述的系统, 其特征在于, 在对媒体网关中 的终端完成测试之后, 根据该终端需要恢复服务或需要退出服务分别将 该终端的服务状态, 通过在媒体网关和媒体网关控制器之间传递针对该 终端的服务改变命令请求, 直接将该终端的状态切换为在服务中状态或 退出服务状态。
17、 一种切换媒体网关中终端状态系统, 包括媒体网关控制器及其 管辖的媒体网关, 其特征在于:
在对媒体网关中的终端完成测试之后 , 根据该终端需要恢复服务或 需要退出服务分别将该终端的服务状态, 通过在媒体网关控制器与媒体 网关之间传递针对该终端的服务改变命令请求直接切换该终端的服务 状态为在服务中状态或退出服务状态。
18、 根据权利要求 17所述的系统, 其特征在于, 所述媒体网关控 制器向媒体网关发送针对该终端的服务改变命令请求, 并将该服务改变 命令请求中的方式参数的值设置为重启; 所述媒、体网关在接收到针对该 终端的服务改变命令请求后 , 发送针对该终端的服务改变命令响应至所 述媒体网关控制器, 并使该终端恢复服务; 所述媒体网关控制器在接收 到针对该终端的服务改变命令响应后, 将其关于的该终端的服务状态从 测试状态切换成在服务中状态。
19、 根据权利要求 17所述的系统, 其特征在于, 所述媒体网关向 媒体网关控制器发送针对该终端的服务改变命令请求, 并将该服务改变 命令请求中的方式参数的值设置为重启; 所述媒体网关控制器在接收到 针对该终端的服务改变命令请求后, 发送针对该终端的服务改变命令响 应至所述媒体网关, 并将其关于该终端的服务状态从测试状态切换成在 服务中状态; 所述媒体网关接收到针对该终端的服务改变命令响应后, 使该终端恢复服务。
20、 根据权利要求 17所述的系统, 其特征在于, 所述媒体网关控 制器向该媒体网关发送针对该终端的服务改变命令请求, 并将该服务改 变命令请求中的方式参数的值设置为优雅或强制; 所述媒体网关发送针 对该终端的服务改变命令响应至所述媒体网关控制器, 并使该终端退出 服务; 所述媒体网关控制器在接收到针对该终端的服务改变命令响应之 后, 将其关于该终端的服务状态从测试状态切换成退出服务状态。
21、 根据权利要求 17 所述的系统, 其特征在于, 所述媒体网关向 媒体网关控制器发送针对该终端的服务改变命令请求, 并将该服务改变 命令请求中的方式参数的值设置为优雅或强制; 所述媒体网关控制器在 接收到针对该终端的服务改变命令请求后 , 发送针对该终端的服务改变 命令响应至所述媒体网关, 并将其关于该终端的服务状态从测试状态切 换成退出服务状态; 所述媒体网关接收到针对该终端的服务改变命令响 应后, 使该终端退出服务。
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US7693141B2 (en) 2005-11-11 2010-04-06 Huawei Technologies Co., Ltd. Method and system for switching the state of a termination in a media gateway
CN102752293A (zh) * 2012-06-21 2012-10-24 中兴通讯股份有限公司 一种在下一代网络中支持用户线路测试的实现方法及系统

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US7693141B2 (en) 2010-04-06
CN1964365B (zh) 2011-06-22
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CN101156398A (zh) 2008-04-02
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