WO2009079836A1 - A method for realizing channel associated re-offhook line signaling in next generation network - Google Patents

A method for realizing channel associated re-offhook line signaling in next generation network Download PDF

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Publication number
WO2009079836A1
WO2009079836A1 PCT/CN2007/003662 CN2007003662W WO2009079836A1 WO 2009079836 A1 WO2009079836 A1 WO 2009079836A1 CN 2007003662 W CN2007003662 W CN 2007003662W WO 2009079836 A1 WO2009079836 A1 WO 2009079836A1
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WIPO (PCT)
Prior art keywords
called
hook
user
gateway
softswitch
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PCT/CN2007/003662
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French (fr)
Chinese (zh)
Inventor
Sanxing Ren
Original Assignee
Zte Corporation
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Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2007/003662 priority Critical patent/WO2009079836A1/en
Priority to CN200780051029.0A priority patent/CN101606369B/en
Publication of WO2009079836A1 publication Critical patent/WO2009079836A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • 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
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1106—Call signalling protocols; H.323 and related

Definitions

  • the present invention relates to the field of next generation network (NGN), and in particular to a method for implementing off-road off-hook line signaling in a next-generation network.
  • NTN next generation network
  • method BACKGROUND OF THE INVENTION
  • So-called channel-dependent signaling is an inter-exchange signaling, that is, transmitting voice information and corresponding signaling on the same path, and the control signal required for the voice channel is from the voice channel itself or There is a fixed connection signaling path to pass.
  • the channel signaling consists of two parts: line signaling and register signaling: Line signaling mainly transmits the contents of occupation, response, and disconnection of some related trunks; the signaling of the register is passed through the two exchanges.
  • FIG. 1 is a basic interaction flow of inter-office signaling in a public switched telephone network (PSTN), where 1, 2, 9 and 10 are line signaling, and 3, 4, 5, 6 7, 7 and 8 are register signaling.
  • PSTN public switched telephone network
  • SS Softswitch
  • MG media gateway
  • the event is used to define a series of softswitch SSs that require the associated signaling of the media gateway MG to detect, and the signal is used to define that the series media gateway detects that it needs to report soft.
  • FIG. 2 illustrates the implementation of an associated basic call flow in an NGN network.
  • the SS controls the MG to implement the associated signaling interaction through the H.248 protocol.
  • the caller control release mode In the PSTN, there are three ways to release the call after the call is completed: the caller control release mode, the called control release mode, and the mutual control release mode.
  • the caller control release mode if the caller hangs up first, the caller is idle and the called party hears the busy tone. If the called party hangs up first, if the called party picks up the phone within a certain time range, an off-hook signal will be generated to the calling party, and the calling party and the called party re-enter the call.
  • FIG. 3 is a flow chart showing the implementation of the off-hook line signal in the caller control release mode after a call in the PSTN.
  • the inter-path connection in the PSTN does not require the intervention of the media gateway control protocol H.248, and can be completed by an off-hook line signaling.
  • the ITU-T Recommendation H.248.28 of the Media Gateway Control Protocol H.248 specification provides a specification for implementing inter-office signaling through the H.248 protocol between the softswitch SS and the media gateway MG.
  • the off-hook line signaling of the associated signaling is not supported between the softswitch SS and the media gateway MG.
  • the object of the present invention is to solve the problem that the prior art does not support the interaction of the off-hook line signaling between the softswitch SS and the media gateway MG.
  • the main idea of the present invention is to define an off-hook event and signal in the relevant protocol, so that the calling user and the called user establish a call through the associated signaling, and after the call, if the called party is on-hook, the soft The exchange notification informs the gateway where the controlled party is located to detect the off-hook event. If the callee's user picks up the phone again within a certain period of time, the gateway of the controlled user's gateway sends a softswitch report to the off-hook event, and the softswitch receives the call.
  • Step S402 adding an off-hook in the H.248 related protocol
  • step S404 after the call between the calling user and the called user ends, the interaction between the softswitch and the gateway is performed according to the presence or absence of the off-hook signal.
  • the off-hook event and signal are extended in an existing packet of the H.248 related protocol, or the off-hook event and signal are extended in the newly defined packet.
  • the existing package is a channel-related signaling related package defined in the H.248 series protocol, including a bcas package, an icas package, and the like.
  • a package is added to the rules that the Hagging complies with when implementing the associated line signaling.
  • the release mode after the call between the calling user and the called user ends includes: the caller control release mode, the called control release mode, and the mutual control release mode. In the caller 4 air system release mode, if the calling user hangs up first, the called user listens to the busy tone.
  • the interaction of the off-hook associated line signaling includes the following processing: the called user hangs up, and the second gateway where the called user is located is soft-switched. Reporting the called hang-up event; the softswitch notifies the first gateway where the calling user is located to send the called hang-up signal; the softswitch notifies the second gateway to detect the called-off-off-off event; if the called user picks up the phone again within a certain time, The second gateway reports the called and off-hook event to the softswitch; the softswitch notifies the first gateway to send the called and then picks up the off-hook signal, and simultaneously detects the calling user's on-hook event; the softswitch notifies the second gateway to detect the called user's on-hook event, the main The calling user and the called user re-enter the call.
  • the interaction of the off-hook line signaling includes the following processing: the calling user's GUI, the first gateway where the calling user is located to the softswitch Reporting the caller's on-hook event; the softswitch notifies the second gateway where the called user is located to send the caller's on-hook signal; the softswitch notifies the first gateway to detect the caller's off-hook event; if the calling user picks up the phone again within a certain period of time, The first gateway reports the caller to the off-hook event to the softswitch; the softswitch notifies the second gateway to send the caller's off-hook signal, and simultaneously detects the called user's on-hook event; the softswitch notifies the first gateway to detect the caller's on-hook event, the master The calling user and the called user
  • FIG. 1 is a diagram showing a basic interaction flow of inter-office signaling in a PSTN according to the prior art
  • FIG. 2 is a diagram showing a basic call flow in an NGN network according to the prior art.
  • FIG. 3 is a flow chart showing the implementation of the off-hook line signal in the caller control release mode after the call in the PSTN according to the prior art;
  • FIG. 4 is a diagram showing the implementation of the follow-up path in the next generation network according to the present invention;
  • FIG. 5 is a flowchart showing a signaling interaction of an off-hook after the called user hangs up in the call control release mode according to the first embodiment of the present invention;
  • 6 is a flow chart showing the signaling interaction of the calling subscriber to hang up after the hang-up in the called controlled release mode according to the second embodiment of the present invention.
  • Step S402 adding a re-off-hook event and signal in the H.248 related protocol
  • step S404 after the call between the calling user and the called user ends, The interaction of the re-off-hook line signaling between the softswitch and the gateway is implemented according to the presence or absence of the off-hook signal.
  • the off-hook event and signal are extended in an existing packet of the H.248 related protocol, or the off-hook event and signal are extended in the newly defined packet.
  • the existing package is a channel-related signaling related package defined in the H.248 series protocol, including a bcas package, an icas package, and the like.
  • a rule is added to the rules that the two parties adhere to when implementing the associated line signaling.
  • the release mode after the call between the calling user and the called user ends is as follows: the caller control release mode, the called control release mode, and the mutual control mode. In the caller control release mode, if the calling user hangs up first, the called user hears the busy tone.
  • the interaction of the off-hook associated line signaling includes the following processing: the called user hangs up, and the second gateway where the called user is located is soft-switched. Reporting the called hang-up event; the softswitch notifies the first gateway where the calling user is located to send the called hang-up signal; the softswitch notifies the second gateway to detect the called-off-off-off event; if the called user picks up the phone again within a certain time, The second gateway reports the called and off-hook event to the softswitch; the softswitch notifies the first gateway to send the called and then picks up the off-hook signal, and simultaneously detects the calling user's on-hook event; the softswitch notifies the second gateway to detect the called user's on-hook event, the main The calling user and the called user re-enter the call.
  • the off-line alternate line signaling interaction includes the following processing: The calling user hangs up, and the first gateway where the calling user is located reports to the softswitch Calling the hang-up event; the softswitch notifies the second gateway where the called user is located to send the calling hang-up signal; the softswitch notifies the first gateway to detect the calling-off-off-off event; if the calling user picks up the phone again within a certain time, the first The gateway reports the caller's off-hook event to the softswitch; the softswitch notifies the second gateway to send the caller's off-hook signal, and detects the called user's on-hook event; the softswitch notifies the first gateway to detect the caller's on-hook event, the calling user Re-enter the call with the called user.
  • FIG. 5 is a flowchart showing a signaling interaction of a called subscriber to hang up and then off-hook in a caller control release mode according to a first embodiment of the present invention.
  • the softswitch In the second step, the softswitch notifies the gateway A where the calling user is located to send the called hang up ( icas /cb) signal; the third step, the softswitch notifies the gateway B to detect the called off-hook (bcas/reans) event; the fourth step, if the called user picks up the phone again within a certain time, the gateway B goes to the softswitch. In the fifth step, the softswitch informs the gateway A to send the called and then off-hook (bcas/reans) signal, and simultaneously detects the calling user's hang up (icas/cf) event, and the sixth step.
  • FIG. 6 is a flowchart showing a signaling interaction of a caller who hangs up and then goes off-hook in the called control release mode according to the second embodiment of the present invention. Referring to FIG. 6, an embodiment in which the calling party hangs up and then goes off-hook after the calling party and the called party enter the call in the called release mode under the condition that the negotiated good events and signals have been defined.
  • the calling user sends a client machine, and the gateway A reports the calling party icas/cb event to the softswitch.
  • the softswitch notifies the gateway B to send the calling hangs (icas/cb) signal; , the softswitch notifies the gateway A to detect the caller's off-hook (bcas/reans) event;
  • the gateway A sends a call to the softswitch to pick up the call (bcas/reans) event; in the fifth step, the softswitch notifies the gateway B to send the caller.
  • Off-hook (bcas/reans) signal simultaneously detecting the called user hangs (icas/cf) event, and the sixth step, the softswitch notifies gateway A to detect the calling user hangs (icas/cf) event, and the calling and called user re-enters call.
  • the above is to expand the off-hook event and ⁇ in the bcas package as an example, but it should be understood that the above-mentioned off-hook events and signals can be extended in existing packages (eg bcas, icas, etc.), or new The defined package is implemented, but when the new definition package is adopted, the rule adhered to by the two parties is added with a new package.
  • the caller control or the called control is realized by extending the H.248 protocol.

Abstract

A method for realizing channel associated re-offhook line signaling interaction in next generation network is provided, which includes the following steps: s402, adding re-offhook event and signal in H.248 correlative protocol; s404, after the call between the caller and the callee is ended, the re-offhook channel associated line signaling interaction between a soft switch and a gateway is realized according to whether there is a re-offhook signal or not. By expending the content about channel associated realization in H.248 protocol, the invention realizes the detecting and reporting of the re-offhook signal in the caller control release mode or the callee control release mode, then realizes the channel associated user re-offhook function in next generation network.

Description

用于在下一代网络中实现  Used to implement in next generation networks
随 ^^ 摘机线路信令的方法 技术领域 本发明涉及下一弋网络 ( next generation network, 简称 NGN ) 领域， 尤其涉及一种用于在下一代网络中实现随路再摘机线路信令的方法。 背景技术 所谓的随路信令是一种交换局间的信令， 即， 在同一通路上传递话音信 息和与其相应的信令， 将话路所需要的控制信号由该话路本身或与之有固定 联系的信令通路来传递。 随路信令由线路信令和记发器信令两部分组成： 线 路信令主要传送一些相关中继线的占用、 应答、 拆线等内容； 记发器信令是 通过两个交换局中的"记发器 "之间传送的， 它的主要功能是传递地址信息。 以中国一号随路为例， 说明一个随路信令在 PSTN网络中的实现。 图 1 是在公共开关电话网络（ public switched telephone network, 简称 PSTN ) 中 局间随路信令基本交互流程， 其中的 1、 2、 9和 10是线路信令， 而 3、 4、 5、 6、 7和 8是记发器信令。 在现有 NGN网络中， 软交换（ Softswitch, SS )通过 H.248协议定义一 系列包、 事件和信号来控制媒体网关 （ media gateway, 简称 MG ) 实现随路 信令的对接。 包用来定义随路类型的终结点上的相关操作， 事件用来定义一 系列软交换 SS需要媒体网关 MG检测的随路相关信令， 以及信号用来定义 ―系列媒体网关检测到需要上报软交换 SS的随路相关信令。 相关 H.248包包 4舌 icas、 bcas和 r2包，其中， bcas包中定义了占用（sz ), 占用证实 （sza ) 以及摘机 （ans ) 等事件和信号， 实现这些随路信令的检测 和上报软交换 SS; icas包中定义了前向挂机 ( cf ), 后向挂机（cb ) 以及被叫 状态（sis )等事件和信号， 实现这些随路信令的检测和上报软交换 SS; 以及 r2包中定义了记发器相关事件和信号 （ addr ) 的检测和上报软交换 SS。 图 2示出了实现一个 NGN网络中的随路基本呼叫流程。 其中， SS通过 H.248协议控制 MG实现随路信令交互。 在 PSTN中， 主被叫通话完成后的释放有三种方式： 分别是主叫控制释 放方式， 被叫控制释放方式和互不控制释放方式。 在主叫控制释放方式下， 如果主叫先挂机， 则主叫空闲， 被叫听忙音。 如果被叫先挂机， 则在一定时间范围内如果被叫再摘机， 会产生一个再摘机 信号给主叫， 主被叫重新进入通话。 在被叫控制释放方式下， 如果被叫先挂机， 则被叫空闲， 主叫听忙音。 如果主叫先挂机， 则在一定时间范围内如果主叫再摘机， 会产生一个再摘机 信号给被叫， 主被叫重新进入通话。 在互不控制释放方式下，不论主叫还是被叫先桂机，另外一方都听忙音。 图 3是示出在 PSTN中通话后在主叫控制释放方式下实现再摘机线路信 号的流程。 PSTN中的随路对接， 不需要媒体网关控制协议 H.248的介入， 通过一个再摘机线路信令就可以完成。 而在 NGN中，媒体网关控制协议 H.248规范之 ITU-T Recommendation H.248.28给出了软交换 SS和媒体网关 MG之间通过 H.248协议实现局间随 路信令的相关规范。 对于再摘机， 在目前 NGN的框架下， 不支持随路信令的再摘机线路信 令在软交换 SS和媒体网关 MG之间的交互。 发明内容 本发明的目的在于解决现有技术中不支持在软交换 SS和媒体网关 MG 之间交互再摘机线路信令的问题。 本发明的主要思想为在相关协议中定义再摘机事件和信号，使得主叫用 户和被叫用户之间通过随路信令建立呼叫， 并且在通话后， 如果通话被控一 方挂机， 则软交换通知通话被控方所在网关检测再摘机事件， 如果在一定时 间内通话被控方用户再次摘机， 则被控方用户所在网关发向软交换上报再摘 机事件， 软交换收到被控方用户网关的再摘机事件后， 向主控方用户所在网 关发送再摘机信号， 则主叫用户和被叫用户再次通话。 根据本发明，提供了一种用于在下一代网络中实现随路再摘机线路信令 的方法， 该方法包括以下处理： 步骤 S402, 在 H.248相关协议中增加再摘机 事件和信号； 以及步骤 S404, 在主叫用户和被叫用户通话结束之后， 根据所 述再摘机信号的有无实现软交换和网关之间的所述再摘机随路线路信令的交 互。 其中， 在 H.248相关协议的现有包中扩展所述再摘机事件和信号， 或者 在新定义的包中扩展所述再摘机事件和信号。 优选地， 现有包是 H.248系列协议中定义的随路信令相关包， 包括 bcas 包、 icas 包等。 此外， 采用新定义包时， 对接汉方在实现随路线路信令时遵 守的规则就增加了一个包。 主叫用户和被叫用户通话结束之后的释放方式包括： 主叫控制释放方 式、 被叫控制释放方式、 以及互不控制释放方式。 在主叫 4空制释放方式下， 如果主叫用户先挂机， 则被叫用户听忙音。 此外， 在主叫控制释放方式下， 如果被叫用户先挂机， 则再摘机随路线 路信令的交互包括以下处理： 所述被叫用户挂机， 被叫用户所在的第二网关 向软交换上报被叫挂机事件； 软交换通知主叫用户所在的第一网关发送被叫 挂机信号； 软交换通知第二网关检测被叫再摘机事件； 如果被叫用户在一定 时间内再次摘机， 则第二网关向软交换上报被叫再摘机事件； 软交换通知第 一网关发送被叫再摘机信号， 同时检测主叫用户挂机事件； 软交换通知第二 网关检测被叫用户挂机事件,主叫用户和被叫用户重新进入通话。 在被叫控制释放方式下， 如果被叫用户先挂机， 则主叫用户听忙音。 此外， 在被叫控制幹放方式下， 如果主叫用户先挂机， 则再摘机随路线 路信令的交互包括以下处理： 主叫用户桂机， 主叫用户所在的第一网关向软 交换上报主叫挂机事件； 软交换通知被叫用户所在的第二网关发送主叫挂机 信号； 软交换通知第一网关检测主叫再摘机事件； 如果主叫用户在一定时间 内再次摘机， 则第一网关向软交换上报主叫再摘机事件； 软交换通知第二网 关发送主叫再摘机信号， 同时检测被叫用户挂机事件； 软交换通知第一网关 检测主叫用户挂机事件,主叫用户和被叫用户重新进入通话。 另外， 在互不控制释放方式下， 无论主叫用户或被叫用户先挂机， 另外 一方都听忙音。 本发明通过扩展 H.248协议，实现了主叫控制或被叫控制释放方式下的 随路信令再摘机信号功能。 本发明的其它特征和优点将在随后的说明书中阐述， 并且， 部分地从说 明书中变得显而易见， 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解， 并且构成说明书的一部分， 与本 发明的实施例一起用于解释本发明， 并不构成对本发明的限制。 在附图中： 图 1是示出根据现有技术的在 PSTN中局间随路信令的基本交互流程； 图 2 是示出根据现有技术的实现一个 NGN 网络中的随路基本呼叫流 程； 图 3是示出根据现有技术的在 PSTN中通话后在主叫控制释放方式下实 现再摘机线路信号的流程； 图 4 是示出根据本发明的在下一代网络中实现随路再摘机线路信令的 方法的流程图； 图 5 是示出根据本发明第一实施例的在主叫控制释放方式下的被叫用 户挂机后再摘机的信令交互的流程图； 以及 图 6 是示出根据本发明第二实施例的在被叫控制释放方式下的主叫用 户挂机后再摘机的信令交互的流程图。 具体实施方式 TECHNICAL FIELD The present invention relates to the field of next generation network (NGN), and in particular to a method for implementing off-road off-hook line signaling in a next-generation network. method. BACKGROUND OF THE INVENTION So-called channel-dependent signaling is an inter-exchange signaling, that is, transmitting voice information and corresponding signaling on the same path, and the control signal required for the voice channel is from the voice channel itself or There is a fixed connection signaling path to pass. The channel signaling consists of two parts: line signaling and register signaling: Line signaling mainly transmits the contents of occupation, response, and disconnection of some related trunks; the signaling of the register is passed through the two exchanges. The recorder is "transmitted", its main function is to pass address information. Taking China's No.1 road as an example, an implementation of a channel-dependent signaling in a PSTN network is illustrated. Figure 1 is a basic interaction flow of inter-office signaling in a public switched telephone network (PSTN), where 1, 2, 9 and 10 are line signaling, and 3, 4, 5, 6 7, 7 and 8 are register signaling. In the existing NGN network, the Softswitch (SS) defines a series of packets, events, and signals through the H.248 protocol to control the media gateway (MG) to implement the interworking signaling. The packet is used to define the related operations on the endpoint of the path type. The event is used to define a series of softswitch SSs that require the associated signaling of the media gateway MG to detect, and the signal is used to define that the series media gateway detects that it needs to report soft. Exchange the associated signaling of the SS. Related H.248 packets 4 tongue icas, bcas and r2 packages, wherein the bcas package defines events and signals such as occupancy (sz), occupancy verification (sza) and off-hook (ans), to achieve these associated signaling Detecting and reporting softswitch SS; icas package defines events and signals such as forward hang up ( cf ), backward hang up (cb ) and called state (sis ) to implement detection and reporting of these associated signaling softswitch SS And the detection and reporting soft-switching SS of the register-related events and signals (addr) are defined in the r2 package. Figure 2 illustrates the implementation of an associated basic call flow in an NGN network. The SS controls the MG to implement the associated signaling interaction through the H.248 protocol. In the PSTN, there are three ways to release the call after the call is completed: the caller control release mode, the called control release mode, and the mutual control release mode. In the caller control release mode, if the caller hangs up first, the caller is idle and the called party hears the busy tone. If the called party hangs up first, if the called party picks up the phone within a certain time range, an off-hook signal will be generated to the calling party, and the calling party and the called party re-enter the call. In the controlled release mode of the called party, if the called party hangs up first, the called party is idle, and the calling party listens to the busy tone. If the calling party hangs up first, if the calling party picks up the phone again within a certain time range, an off-hook signal will be generated to the called party, and the calling party and the called party re-enter the call. In the uncontrolled release mode, the other party listens to the busy tone regardless of whether the caller or the caller is first. FIG. 3 is a flow chart showing the implementation of the off-hook line signal in the caller control release mode after a call in the PSTN. The inter-path connection in the PSTN does not require the intervention of the media gateway control protocol H.248, and can be completed by an off-hook line signaling. In the NGN, the ITU-T Recommendation H.248.28 of the Media Gateway Control Protocol H.248 specification provides a specification for implementing inter-office signaling through the H.248 protocol between the softswitch SS and the media gateway MG. For the off-hook, in the current NGN framework, the off-hook line signaling of the associated signaling is not supported between the softswitch SS and the media gateway MG. SUMMARY OF THE INVENTION The object of the present invention is to solve the problem that the prior art does not support the interaction of the off-hook line signaling between the softswitch SS and the media gateway MG. The main idea of the present invention is to define an off-hook event and signal in the relevant protocol, so that the calling user and the called user establish a call through the associated signaling, and after the call, if the called party is on-hook, the soft The exchange notification informs the gateway where the controlled party is located to detect the off-hook event. If the callee's user picks up the phone again within a certain period of time, the gateway of the controlled user's gateway sends a softswitch report to the off-hook event, and the softswitch receives the call. After the off-hook event of the controlling user gateway sends an off-hook signal to the gateway where the master user is located, the calling user and the called user talk again. According to the present invention, there is provided a method for implementing off-road off-hook line signaling in a next-generation network, the method comprising the following steps: Step S402, adding an off-hook in the H.248 related protocol And the step S404, after the call between the calling user and the called user ends, the interaction between the softswitch and the gateway is performed according to the presence or absence of the off-hook signal. . Wherein, the off-hook event and signal are extended in an existing packet of the H.248 related protocol, or the off-hook event and signal are extended in the newly defined packet. Preferably, the existing package is a channel-related signaling related package defined in the H.248 series protocol, including a bcas package, an icas package, and the like. In addition, when the new definition package is adopted, a package is added to the rules that the Hanfang complies with when implementing the associated line signaling. The release mode after the call between the calling user and the called user ends includes: the caller control release mode, the called control release mode, and the mutual control release mode. In the caller 4 air system release mode, if the calling user hangs up first, the called user listens to the busy tone. In addition, in the caller control release mode, if the called user hangs up first, the interaction of the off-hook associated line signaling includes the following processing: the called user hangs up, and the second gateway where the called user is located is soft-switched. Reporting the called hang-up event; the softswitch notifies the first gateway where the calling user is located to send the called hang-up signal; the softswitch notifies the second gateway to detect the called-off-off-off event; if the called user picks up the phone again within a certain time, The second gateway reports the called and off-hook event to the softswitch; the softswitch notifies the first gateway to send the called and then picks up the off-hook signal, and simultaneously detects the calling user's on-hook event; the softswitch notifies the second gateway to detect the called user's on-hook event, the main The calling user and the called user re-enter the call. In the controlled release mode of the called party, if the called user hangs up first, the calling user hears the busy tone. In addition, in the called control dry mode, if the calling user hangs up first, the interaction of the off-hook line signaling includes the following processing: the calling user's GUI, the first gateway where the calling user is located to the softswitch Reporting the caller's on-hook event; the softswitch notifies the second gateway where the called user is located to send the caller's on-hook signal; the softswitch notifies the first gateway to detect the caller's off-hook event; if the calling user picks up the phone again within a certain period of time, The first gateway reports the caller to the off-hook event to the softswitch; the softswitch notifies the second gateway to send the caller's off-hook signal, and simultaneously detects the called user's on-hook event; the softswitch notifies the first gateway to detect the caller's on-hook event, the master The calling user and the called user re-enter the call. In addition, in the uncontrolled release mode, the calling user or the called user hangs up first, and the other party listens to the busy tone. The invention realizes the caller control or the called control release mode by extending the H.248 protocol. Follow-up signaling and off-hook signal function. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawings: FIG. 1 is a diagram showing a basic interaction flow of inter-office signaling in a PSTN according to the prior art; FIG. 2 is a diagram showing a basic call flow in an NGN network according to the prior art. FIG. 3 is a flow chart showing the implementation of the off-hook line signal in the caller control release mode after the call in the PSTN according to the prior art; FIG. 4 is a diagram showing the implementation of the follow-up path in the next generation network according to the present invention; FIG. 5 is a flowchart showing a signaling interaction of an off-hook after the called user hangs up in the call control release mode according to the first embodiment of the present invention; 6 is a flow chart showing the signaling interaction of the calling subscriber to hang up after the hang-up in the called controlled release mode according to the second embodiment of the present invention. detailed description
以下结合附图对本发明的优选实施例进行说明， 应当理解， 此处所描述 的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。 图 4 是示出根据本发明的在下一代网络中实现随路再摘机线路信号交 互的方法的流程图。 参照图 4， 该方法包括以下处理： 步骤 S402, 在 H.248相关协议中增加 再摘机事件和信号； 以及步骤 S404, 在主叫用户和被叫用户通话结束之后， 根据所述再摘机信号的有无实现软交换和网关之间的所述再摘机随路线路信 令的交互。 其中， 在 H.248相关协议的现有包中扩展所述再摘机事件和信号， 或者 在新定义的包中扩展所述再摘机事件和信号。 优选地， 现有包是 H.248系列协议中定义的随路信令相关包， 包括 bcas 包、 icas 包等。 此夕卜， 采用新定义包时， 对接双方在实现随路线路信令时遵 守的规则就增加了一个包。 主叫用户和被叫用户通话结束之后的释放方式包括： 主叫控制释放方 式、 被叫控制释放方式、 以及互不控制锋放方式。 在主叫控制释放方式下， 如果主叫用户先挂机， 则被叫用户听忙音。 此外， 在主叫控制释放方式下， 如果被叫用户先挂机， 则再摘机随路线 路信令的交互包括以下处理： 所述被叫用户挂机， 被叫用户所在的第二网关 向软交换上报被叫挂机事件； 软交换通知主叫用户所在的第一网关发送被叫 挂机信号； 软交换通知第二网关检测被叫再摘机事件； 如果被叫用户在一定 时间内再次摘机， 则第二网关向软交换上报被叫再摘机事件； 软交换通知第 一网关发送被叫再摘机信号， 同时检测主叫用户挂机事件； 软交换通知第二 网关检测被叫用户挂机事件,主叫用户和被叫用户重新进入通话。 在被叫控制释放方式下， 如果被叫用户先挂机， 则主叫用户听忙音。 此外， 在被叫控制释放方式下， 如果主叫用户先挂机， 则再摘机随路线 路信令的交互包括以下处理： 主叫用户挂机， 主叫用户所在的第一网关向软 交换上报主叫挂机事件； 软交换通知被叫用户所在的第二网关发送主叫挂机 信号； 软交换通知第一网关检测主叫再摘机事件； 如果主叫用户在一定时间 内再次摘机， 则第一网关向软交换上报主叫再摘机事件； 软交换通知第二网 关发送主叫再摘机信号， 同时检测被叫用户挂机事件； 软交换通知第一网关 检测主叫用户挂机事件，主叫用户和被叫用户重新进入通话。 另夕卜， 在互不控制释放方式下， 无论主叫用户或被叫用户先挂机， 另外 一方都听忙音。 下面， 参照图 5和图 6具体描述本发明的实施例。 其中， 在第一实施例 和第二实施例中， 为了陈述方便， 以在 H.248协议中的 bcas包中增加再摘机 事件和信号为例， 将再摘机定义为 reans。 第一实施例 图 5 是示出根据本发明第一实施例的在主叫控制释放方式下的被叫用 户挂机后再摘机的信令交互的流程图。 参照图 5， 示出了在已经定义协商好 reans事件和信号的条件下， 在主 叫释放方式下， 主被叫用户进入通话之后被叫用户挂机后再摘机的实施例。 第一步， 被叫用户挂机， 被叫用户所在的网关 B 向软交换上报被叫挂 机 ( icas/cb ) 事件； 第二步， 软交换通知主叫用户所在的网关 A发送被叫挂机（ icas/cb )信 号; 第三步， 软交换通知网关 B检测被叫再摘机（ bcas/reans ) 事件； 第四步， 如果被叫用户在一定时间内再次摘机， 则网关 B 向软交换上 艮再摘机 ( bcas/reans ) 事件； 第五步， 软交换通知网关 A发送被叫再摘机（bcas/reans )信号， 同时 检测主叫用户挂机（ icas/cf ) 事件， 以及 第六步， 软交换通知网关 B检测被叫用户挂机（icas/cb ) 事件，然后主 被叫用户重新进入通话。 第二实施例 图 6 是示出根据本发明第二实施例的在被叫控制释放方式下的主叫用 户挂机后再摘机的信令交互的流程图。 参照图 6, 示出了在已经定义协商好 reans事件和信号条件下， 在被叫 释放方式下， 主被叫用户进入通话之后主叫用户挂机后再摘机的实施例。 第一步， 主叫用户桂机， 网关 A向软交换上报主叫桂机（icas/cb )事件； 第二步， 软交换通知网关 B发送主叫挂机（ icas/cb )信号； 第三步， 软交换通知网关 A检测主叫再摘机（ bcas/reans ) 事件; 第四步， 如果主叫用户在一定时间内再次摘机， 则网关 A 向软交换上 4艮主叫再摘机 ( bcas/reans ) 事件； 第五步， 软交换通知网关 B发送主叫再摘机 ( bcas/reans )信号， 同时 检测被叫用户挂机 ( icas/cf ) 事件， 以及 第六步， 软交换通知网关 A检测主叫用户挂机 ( icas/cf )事件，主被叫用 户重新进入通话。 以上以在 bcas 包中扩展再摘机事件和^ (言号为例， 但应该理解， 上述再 摘机事件和信号可以在现有包中扩展（如： bcas, icas等）， 也可以采用新定 义的包来实现， 但在采用新定义包时， 对接双方实现时遵守的规则就增加了 一个包。 通过本发明的技术方案， 通过扩展 H.248协议， 实现了主叫控制或被叫 控制释放方式下的随路信令再摘机事件的检测和上报， 以及再摘机信号的发 送。 以上仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域 的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则 之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围 之内。 The preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. 4 is a flow chart showing a method of implementing on-road off-hook line signal interaction in a next generation network in accordance with the present invention. Referring to FIG. 4, the method includes the following steps: Step S402, adding a re-off-hook event and signal in the H.248 related protocol; and step S404, after the call between the calling user and the called user ends, The interaction of the re-off-hook line signaling between the softswitch and the gateway is implemented according to the presence or absence of the off-hook signal. Wherein, the off-hook event and signal are extended in an existing packet of the H.248 related protocol, or the off-hook event and signal are extended in the newly defined packet. Preferably, the existing package is a channel-related signaling related package defined in the H.248 series protocol, including a bcas package, an icas package, and the like. Furthermore, when a new definition packet is adopted, a rule is added to the rules that the two parties adhere to when implementing the associated line signaling. The release mode after the call between the calling user and the called user ends is as follows: the caller control release mode, the called control release mode, and the mutual control mode. In the caller control release mode, if the calling user hangs up first, the called user hears the busy tone. In addition, in the caller control release mode, if the called user hangs up first, the interaction of the off-hook associated line signaling includes the following processing: the called user hangs up, and the second gateway where the called user is located is soft-switched. Reporting the called hang-up event; the softswitch notifies the first gateway where the calling user is located to send the called hang-up signal; the softswitch notifies the second gateway to detect the called-off-off-off event; if the called user picks up the phone again within a certain time, The second gateway reports the called and off-hook event to the softswitch; the softswitch notifies the first gateway to send the called and then picks up the off-hook signal, and simultaneously detects the calling user's on-hook event; the softswitch notifies the second gateway to detect the called user's on-hook event, the main The calling user and the called user re-enter the call. In the controlled release mode of the called party, if the called user hangs up first, the calling user hears the busy tone. In addition, in the controlled release mode, if the calling user hangs up first, the off-line alternate line signaling interaction includes the following processing: The calling user hangs up, and the first gateway where the calling user is located reports to the softswitch Calling the hang-up event; the softswitch notifies the second gateway where the called user is located to send the calling hang-up signal; the softswitch notifies the first gateway to detect the calling-off-off-off event; if the calling user picks up the phone again within a certain time, the first The gateway reports the caller's off-hook event to the softswitch; the softswitch notifies the second gateway to send the caller's off-hook signal, and detects the called user's on-hook event; the softswitch notifies the first gateway to detect the caller's on-hook event, the calling user Re-enter the call with the called user. In addition, in the uncontrolled release mode, the calling party or the called user hangs up first, and the other party listens to the busy tone. Next, an embodiment of the present invention will be specifically described with reference to FIGS. 5 and 6. In the first embodiment and the second embodiment, for the convenience of the description, the off-hook is added to the bcas package in the H.248 protocol. For example, the event and signal are defined as reans. First Embodiment FIG. 5 is a flowchart showing a signaling interaction of a called subscriber to hang up and then off-hook in a caller control release mode according to a first embodiment of the present invention. Referring to FIG. 5, an embodiment in which the called party hangs up and then goes off-hook after the calling party and the called party enter the call under the condition that the negotiated good events and signals have been defined. In the first step, the called user hangs up, and the gateway B where the called user is located reports the called hangs (icas/cb) event to the softswitch. In the second step, the softswitch notifies the gateway A where the calling user is located to send the called hang up ( icas /cb) signal; the third step, the softswitch notifies the gateway B to detect the called off-hook (bcas/reans) event; the fourth step, if the called user picks up the phone again within a certain time, the gateway B goes to the softswitch In the fifth step, the softswitch informs the gateway A to send the called and then off-hook (bcas/reans) signal, and simultaneously detects the calling user's hang up (icas/cf) event, and the sixth step. The softswitch notifies the gateway B to detect the called user's hang up (icas/cb) event, and then the primary called party re-enters the call. Second Embodiment FIG. 6 is a flowchart showing a signaling interaction of a caller who hangs up and then goes off-hook in the called control release mode according to the second embodiment of the present invention. Referring to FIG. 6, an embodiment in which the calling party hangs up and then goes off-hook after the calling party and the called party enter the call in the called release mode under the condition that the negotiated good events and signals have been defined. In the first step, the calling user sends a client machine, and the gateway A reports the calling party icas/cb event to the softswitch. In the second step, the softswitch notifies the gateway B to send the calling hangs (icas/cb) signal; , the softswitch notifies the gateway A to detect the caller's off-hook (bcas/reans) event; In the fourth step, if the calling user picks up the phone again within a certain time, the gateway A sends a call to the softswitch to pick up the call (bcas/reans) event; in the fifth step, the softswitch notifies the gateway B to send the caller. Off-hook (bcas/reans) signal, simultaneously detecting the called user hangs (icas/cf) event, and the sixth step, the softswitch notifies gateway A to detect the calling user hangs (icas/cf) event, and the calling and called user re-enters call. The above is to expand the off-hook event and ^ in the bcas package as an example, but it should be understood that the above-mentioned off-hook events and signals can be extended in existing packages (eg bcas, icas, etc.), or new The defined package is implemented, but when the new definition package is adopted, the rule adhered to by the two parties is added with a new package. By the technical solution of the invention, the caller control or the called control is realized by extending the H.248 protocol. The detection and reporting of the off-channel signaling off-hook event in the release mode, and the transmission of the off-hook signal. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and is intended by those skilled in the art. It is to be understood that various modifications and changes may be made without departing from the spirit and scope of the invention.

Claims

权 利 要 求 书 Claim
1. 一种在下一代网络中实现随路再摘机线路信令的方法， 其特征在于， 所 述方法包括以下处理： A method for implementing off-road off-hook line signaling in a next-generation network, the method comprising the following:
步骤 S402, 在 H.248相关协议中增加再摘机事件和信号， 以及 步骤 S404, 在主叫用户和被叫用户通话结束之后， 据所述再摘 机信号的有无实现软交换和媒体网关之间的所述再摘机随路线路信令的 交互。  Step S402, adding an off-hook event and signal in the H.248 related protocol, and step S404, after the call between the calling user and the called user ends, implementing the softswitch and the media gateway according to whether the off-hook signal is present or not The interaction between the off-hook and the line signaling is performed.
2. 根据权利要求 1所述的方法， 其特征在于， 在 H.248相关协议的现有包 中扩展所述再摘机事件和信号， 或者在新定义的包中扩展所述再摘机事 件和信号。 2. The method according to claim 1, wherein the off-hook event and signal are extended in an existing packet of an H.248-related protocol, or the off-hook event is extended in a newly defined packet. And signal.
3. 根据权利要求 2所述的方法， 其特征在于， 所述现有包是 H.248系列协 议中定义的随路信令相关包， 包括 bcas包、 icas包。 The method according to claim 2, wherein the existing packet is a related channel signaling related packet defined in the H.248 series protocol, and includes a bcas packet and an icas packet.
4. 根据权利要求 1至 3中任一项所述的方法， 其特征在于， 所述主叫用户 和所述被叫用户通话结束之后的释放方式包括： 主叫控制释放方式、 被 叫控制释放方式、 以及互不控制幹放方式。 The method according to any one of claims 1 to 3, wherein the release mode after the call is terminated by the calling user and the called user includes: a call release control release mode, and a called control release release Ways, and do not control the dry release method.
5. 根椐权利要求 4所述的方法， 其特征在于， 在所述主叫控制释放方式下， 如果所述主叫用户先挂机， 则所述被叫用户听忙音。 5. The method according to claim 4, wherein in the calling control release mode, if the calling user hangs up first, the called user hears a busy tone.
6. 根据权利要求 4所述的方法， 其特征在于， 在所述主叫控制释放方式下， 如果所述被叫用户先挂机， 则所述再摘机随路线路信令的交互包括以下 处理： The method according to claim 4, wherein, in the calling control release mode, if the called user hangs up first, the interaction of the off-hook associated line signaling includes the following processing :
所述被叫用户挂机，所述被叫用户所在的第二网关向所述软交换上 报被叫挂机事件；  The called user hangs up, and the second gateway where the called user is located reports the called on-hook event to the softswitch;
所述软交换通知所述主叫用户所在的第一网关发送被叫挂机信号； 所述软交换通知所述第二网关检测被叫再摘机事件；  The softswitch notifies the first gateway where the calling user is located to send a called on-hook signal; the softswitch notifies the second gateway to detect a called off-hook event;
如果所述被叫用户在一定时间内再次摘机，则所述第二网关向所述 软交换上报所述被叫再摘机事件； 所述软交换通知所述第一网关发送被叫再摘机信号， 同时检测主 用户挂机事件； If the called user picks up the phone again within a certain time, the second gateway reports the called and then picks up the event to the softswitch; The softswitch notifies the first gateway to send a called off-hook signal, and simultaneously detects an on-hook event of the primary user;
所述软交换通知所述第二网关检测被叫用户挂机事件,所述主叫用 户和所述被叫用户重新进入通话。  The softswitch notifies the second gateway to detect an on-hook event of the called user, and the calling user and the called user re-enter the call.
7. 根据权利要求 4所述的方法， 其特征在于， 在所述被叫控制释放方式下， 如果所述被叫用户先挂机， 则所述主叫用户听忙音。 The method according to claim 4, wherein, in the called controlled release mode, if the called user hangs up first, the calling user listens to a busy tone.
8. 根据权利要求 4所述的方法， 其特征在于， 在所述被叫控制释放方式下， 如果所述主叫用户先挂机， 则所述再摘机随路线路信令的交互包括以下 处理： The method according to claim 4, wherein, in the called controlled release mode, if the calling user hangs up first, the interaction of the off-hook associated line signaling includes the following processing :
所述主叫用户挂机，所述主叫用户所在的第一网关向所述软交换上 报主叫桂机事件；  The calling user hangs up, and the first gateway where the calling user is located reports the calling and calling event to the softswitch;
所述软交换通知所述被叫用户所在的第二网关发送主叫挂机信号； 所述软交换通知所述第一网关检测主叫再摘机事件；  The softswitch notifies the second gateway where the called user is located to send a caller hang-up signal; the softswitch notifies the first gateway to detect a caller-off-off-off event;
如果所述主叫用户在一定时间内再次摘机，则所述第一网关向所述 软交换上报所述主叫再摘机事件；  If the calling user picks up the phone again within a certain time, the first gateway reports the caller to the off-hook event to the softswitch;
所述软交换通知所述第二网关发送主叫再摘机信号， 同时检测被叫 用户挂机事件；  The softswitch notifies the second gateway to send a callback and off-hook signal, and simultaneously detects an on-hook event of the called user;
所述软交换通知所述第一网关检测主叫用户挂机事件,所述主叫用 户和所述被叫用户重新进入通话。  The softswitch notifies the first gateway to detect a call-in event of the calling user, and the calling user and the called user re-enter the call.
9. 根据权利要求 4所述的方法， 其特征在于， 在所述互不控制释放方式下， 无论所述主叫用户或所述被叫用户先挂机， 另外一方都听忙音。 9. The method according to claim 4, wherein in the mutual uncontrolled release mode, the other party listens to the busy tone regardless of whether the calling user or the called user hangs up first.
PCT/CN2007/003662 2007-12-18 2007-12-18 A method for realizing channel associated re-offhook line signaling in next generation network WO2009079836A1 (en)

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