WO2012055254A1

WO2012055254A1 - Method, gateway and system for reporting user state in next generation network

Info

Publication number: WO2012055254A1
Application number: PCT/CN2011/076123
Authority: WO
Inventors: 孙红军; 黄湖
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-10-29
Filing date: 2011-06-22
Publication date: 2012-05-03
Also published as: CN102457820A; CN102457820B

Abstract

A method, gateway and system for reporting the user state in the Next Generation Network (NGN) are provided by the present invention, which are used for solving the problem that when the ring-back tone is played for the calling user in the NGN, the gateway can not use the standard H.248 protocol to report the state of the called user and can not define the state of the called user accurately. With the present invention, by using the existing control framework of the NGN and the feature that the H.248 protocol packet can be extended flexibly, and by extending the parameter in the ring-back tone (rt) detection event of the H.248 protocol packet, such as the call setup procedure tone detection packet (cd packet), the functions for detecting and reporting the state of the called user is achieved conveniently and rapidly, and the state of the called user can be defined accurately to enable the user to obtain the detailed information of the opposite party.

Description

Method, gateway and system for NGN network user status report

The present invention relates to the field of communications technologies, and in particular, to a method, a gateway, and a system for NGN (Next Generation Network) user status reporting. Background technique

The ring back tone is a kind of prompt tone commonly used during a voice call. During the voice call call initiation process, the ring back tone is generally used to play the ring back tone to the caller after the called party rings. The network element that plays the ring back tone may be the calling end office, the tandem office, the called end office, and the voice media server. In the CRBT service application, before the ringback tone is sent to the calling party, the status of the called user needs to be detected. If the called party is in an idle state, the ringing tone is played to the calling party; if the called party is already in the off-hook, voice call If other non-idle states are not available, the ringer cannot be played to the caller. You need to give the caller a busy tone, "The user you dialed is busy, please dial later", "The user you dialed is on a call, please do not hang up", etc. Voice prompts.

In an NGN network, there are multiple types of gateways. For an access gateway of an end office, the user refers to the user phone that is connected to the gateway; for the gateway relay gateway used for the relay tandem, the user refers to the relay. The user's phone connected to the PSTN network device connected to the gateway; For the media server used to provide voice notification, the user refers to all the user phones that use this device as the voice media server. In the NGN network, the control function is separated from the media function, and the softswitch that undertakes the control function and the gateway that undertakes the voice call connection function of the user exchange messages through the media gateway control protocol-ITU-T H.248 protocol to complete the call service to the user. set up.

At present, when the ringback tone is played by the calling user in the NGN network, the gateway cannot report the called user status using the standard H.248 protocol, and cannot accurately define the status of the called user, so that the user cannot obtain the detailed information of the other party. Not rich enough. Summary of the invention

The main purpose of the present invention is to provide a method, a gateway and a system for reporting user status of an NGN network, which are used to solve the problem that when the ringback tone is played by the calling user in the NGN network, the gateway cannot use the standard H.248 protocol to call the called party. User status, the problem of not being able to precisely define the status of the called user.

In order to achieve the above object, the present invention provides a method for NGN network user status reporting, including:

The gateway receives an indication message sent by the softswitch device, indicating that the gateway detects the status of the called user, where the indication message carries an H.248 protocol packet detection event;

Detecting the status of the called user according to the indication message;

The extended parameter that is carried in the H.248 protocol packet detection event is reported to the softswitch device by the response message, so that the softswitch device controls the playback according to the called user status indication. The device delivers the corresponding tone to the calling user.

Preferably, the called user status includes: a non-calling user busy state, a call state, an idle state, and/or an error state, where the non-calling user busy state includes: an off-hook state, a user dialing state, a ringback tone, and The busy tone state; the tone includes: a ring tone, a busy tone, and/or a wait tone.

Preferably, when the called user status is a non-calling user busy state, the value of the extended parameter is 0; when the called user status is a call state, the extended parameter has a value of 1; When the called user state is in an idle state, the extended parameter has a value of 2; when the called user state is an error state, the extended parameter has a value of 3.

Preferably, the controlled playback device comprises a media server and/or the gateway.

The invention also provides a gateway for NGN network user status report, including:

An indication message receiving module, configured to receive an indication message sent by the softswitch device, indicating that the gateway detects a status of the called user, where the indication message carries an H.248 protocol packet detection event; a user status detection module, configured to detect a status of the called user according to the indication message; a status parameter reporting module, configured to carry the detected extended user parameter in the H.248 protocol packet detection event The response message is reported to the softswitch device, so that the softswitch device instructs the controlled playback device to deliver a corresponding tone to the calling user according to the called user status.

The invention also provides a system for NGN network user status reporting, including a softswitch device and a gateway, wherein:

The softswitch device is configured to send, to the gateway, an indication message indicating that the gateway detects a status of the called user when the call connection is established, where the indication message carries an H.248 protocol packet detection event; and receiving the gateway The reported response message, the extended parameter in the H.248 protocol packet detection event of the response message carries the detected status of the called user, and the controlled playback device transmits the corresponding signal tone to the calling user according to the status of the called user. ;

The gateway is configured to receive an indication message sent by the softswitch device, detect a status of the called user according to the indication message, and carry the extended status of the detected called user in the H.248 protocol packet detection event. The parameter is reported to the softswitch device by using a response message.

Preferably, the called user status includes: a non-calling user busy state, a call state, an idle state, and/or an error state, where the non-calling user busy state includes: an off-hook state, a user dialing state, a ringback tone, and Busy tone status.

Preferably, the gateway is a gateway as described above. Method, gateway and system for utilizing NGN network user status report according to the present invention The existing control framework of the NGN network and the H.248 protocol packet can be flexibly extended by extending the parameters in the ringback tone (rt) detection event of the H.248 protocol packet, such as the call setup process tone detection packet (cd packet). The detection and reporting function of the called user state can be conveniently and quickly realized, and the state of the called user can be precisely defined, so that the user can obtain the detailed information of the other party; meanwhile, the method has wide applicability, and is not only applicable to the color ring tones. Business, and applicable to all application scenarios that may need to detect user status. This method only needs to newly expand a parameter when extending the parameters of the standard H.248 call setup process tone detection packet, making full use of different parameter values to represent the characteristics of different user states, covering all possible user states, enriching Gateway function. DRAWINGS

1 is a schematic flow chart of an embodiment of a NGN network user status report according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a gateway of an NGN network user status report according to the present invention; FIG. 3 is a system implementation of an NGN network user status report according to the present invention; Example structure diagram. detailed description

The solution of the embodiment of the present invention is to implement the function of detecting and reporting the state of the called user conveniently and quickly by extending the parameters in the detection event of the H.248 protocol packet, such as the call setup process tone detection packet. Loopback tone detection events, etc.

As shown in FIG. 1 , an embodiment of the present invention provides a method for reporting a user status of an N GN network, including:

Step S101: The gateway receives an indication message sent by the softswitch device, indicating that the gateway detects the status of the called user, and the indication message carries the H.248 protocol packet detection event.

The method running environment of the present embodiment involves a softswitch (ie, a softswitch device in this embodiment) and a gateway as a media connection network element in the NGN network, and cannot use the standard H after detecting the user state in the prior art gateway. The feature of the .248 protocol for reporting, this embodiment implements a method for reporting the user status of the gateway in the NGN network by extending the H.248 protocol. Law.

In this embodiment, the gateway is the gateway where the called user is located. In this embodiment, when the ringback tone needs to be sent to the calling user during the establishment of the voice call, the gateway of the called user is detected by the softswitch device to detect the called user. State, if the called user is in an idle state, the controlled switching device is instructed by the softswitch device to play the ring back tone to the calling user or to play the customized ring tone of the called user; if the called user is already in a call state, Give the calling user a busy tone or the called user is busy and other prompt voices.

In the H.248 standard protocol, different services are implemented by using different protocol packets. In this embodiment, the call setup process tone detection packet in the H.248 protocol packet is taken as an example for description. The standard H.248 protocol defines a call setup process tone detection packet (cd packet) that can detect various tone sounds required during call setup, such as busy tone, ring back tone, and wait tone.

In this embodiment, before the ringback tone is sent to the calling user, the softswitch device sends an indication message to the gateway, and carries the ringback tone detection event of the call setup process tone detection packet defined by the H.248 protocol in the indication message to indicate The gateway detects the status of the called user.

Step S102: Detecting a status of the called user according to the indication message;

Step S103: The extended parameter that is carried in the H.248 protocol packet detection event is reported to the softswitch device by the response message, so that the softswitch device indicates the controlled playback device according to the called user status. Ask the user to deliver the corresponding tone.

In the foregoing step S102 and the step S103, the gateway where the called user is located detects the status of the called user according to the indication message sent by the softswitch, and reports the detected status of the called user to the softswitch. The called user status in this embodiment includes: a non-calling user busy state, a call state, an idle state, and/or an error state, etc., wherein the non-calling user busy state includes: an off-hook state, a user dialing state, a ringback tone, and Busy tone and other status.

In this embodiment, the reporting of the status information of the called user is implemented by extending the H.248 protocol. The call setup process tone detection packet is taken as an example, specifically: call setup using the standard H.248 protocol. The process sound detection packet (cd packet), by extending the parameter (cd/rt{substate=x}) in the cd packet detection ringback tone event (cd/rt), the gateway carries the detected user state in the tone detection packet. The extended parameters in the ringback tone detection event are reported to the softswitch device by the response message. Where cd is the standard H.248 protocol call setup process tone detection packet; rt is the tone detection event of the standard call setup procedure packet; substate is the extended parameter of this embodiment, used to identify the called user state; "x" It is a parameter value. Different parameter values represent different user states. For example: 0 can represent non-calling user busy status, 1 means call status, 2 means idle status, 3 means error status, etc. Parameter values include but are not limited to the above list Several status values, parameter values can be increased according to different needs to identify more possible called user status.

When the softswitch device receives the status of the called user reported by the gateway, the softswitch device instructs the controlled playback device to deliver the corresponding tone to the calling user according to different states of the called user. In this embodiment, the controlled playback device includes a media server or a called user gateway or other gateway; wherein the tone includes: a ring tone, a busy tone, and/or a wait tone. For example, if the called user is in the idle state, the calling party will be given a ring tone; if the called state is off, the user will be busy; in the voice call state, the user will be placed "the user you dialed is busy, please dial later" or "The user you are dialing is on a call, please do not hang up" and other voice announcements.

In this embodiment, the control framework of the existing NGN network and the H.248 protocol packet can be flexibly extended, and the parameter can be extended by expanding the parameters in the ringback tone detection event of the H.248 protocol packet, such as the call setup process tone detection packet. The method for detecting and reporting the status of the called user is quickly implemented. At the same time, this method has wide applicability and is not only applicable to the CRBT service. This method can be used for all application scenarios that may need to detect the user status. This method only needs to newly expand a parameter when extending the parameters of the standard H.248 call setup process tone detection packet, and fully utilizes different parameter values to represent different user state characteristics, covering all possible user states. As shown in FIG. 2, an embodiment of the present invention provides a gateway for NGN network user status reporting, including: an indication message receiving module 201, a user status detecting module 202, and a status parameter reporting module. Block 203, wherein:

The indication message receiving module 201 is configured to receive an indication message sent by the softswitch device, indicating that the gateway detects the status of the called user, and the indication message carries the H.248 protocol packet detection event;

The user status detection module 202 is configured to detect the status of the called user according to the indication message; the status parameter reporting module 203 is configured to: carry the detected extended user parameter in the H.248 protocol packet detection event by the response The message is reported to the softswitch device, so that the softswitch device indicates that the controlled playback device delivers the corresponding tone to the calling user according to the status of the called user.

In this embodiment, the gateway where the called user is located detects the status of the called user according to the indication message sent by the softswitch, and reports the detected status of the called user to the softswitch. The called user status in this embodiment includes: a non-calling user busy state, a call state, an idle state, and/or an error state, etc., wherein the non-calling user busy state includes: an off-hook state, a user dialing state, a ringback tone, and Busy tone status. In this embodiment, the reporting of the status information of the called user is implemented by extending the H.248 protocol. The call setup process tone detection packet is taken as an example, specifically: a call setup process tone detection packet (cd package using the standard H.248 protocol). By extending the parameter ( cd/rt{substate=x} ) in the cd packet detection ringback tone event (cd/rt), the gateway carries the detected user state in the ringback tone detection event of the tone detection packet. The extended parameters are reported to the softswitch device by the response message. Where cd is the standard H.248 protocol call setup process tone detection packet; rt is the tone detection event of the standard call setup procedure packet; substate is the extended parameter of this embodiment, used to identify the called user state; "x" It is a parameter value. Different parameter values represent different user states. For example: 0 can represent non-calling user busy status, 1 means call status, 2 means idle status, 3 means error status, etc. Parameter values include but are not limited to the above list Several status values, parameter values can be increased according to different needs to identify more possible called user status.

When the softswitch device receives the status of the called user reported by the gateway, the softswitch device instructs the controlled playback device to deliver the corresponding tone to the calling user according to different states of the called user. In this embodiment, the controlled playback device includes a media server or a called user gateway or other gateway; wherein the tone includes: a ring tone, a busy tone, and/or a wait tone. For example, if the called user is in the idle state, the calling party will be given a ring tone; if the called state is off, the user will be busy; in the voice call state, the user will be placed "the user you dialed is busy, please dial later" or "The user you are dialing is on a call, please do not hang up" and other voice announcements. As shown in FIG. 3, an embodiment of the present invention provides a system for NGN network user status reporting, including a softswitch device 301 and a gateway 302, where:

The softswitch device 301 is configured to send, to the gateway 302, an indication message indicating that the gateway detects the status of the called user, when the call connection is established, the indication message carries the H.248 protocol packet detection event, and the response message reported by the gateway 302 is received. The extended parameter in the H.248 protocol packet detection event of the response message carries the detected state of the called user, and the controlled playback device is instructed to play the corresponding signal tone to the calling user according to the state of the called user; The gateway 302 is configured to receive the indication message sent by the softswitch device 301, detect the status of the called user according to the indication message, and send the detected extended user parameter in the H.248 protocol packet detection event by using the response message. Reported to the softswitch device 301.

The called user status includes: a non-calling user busy state, a call state, an idle state, and/or an error state, etc., wherein the non-calling user busy state includes: an off-hook state, a user dialing state, a listening ringback tone, and a busy tone state.

In this embodiment, gateway 302 is a gateway as described above.

The method, the gateway and the system for reporting the user status of the NGN network in the embodiment of the present invention utilize the existing control framework of the NGN network and the flexible extension of the H.248 protocol packet by using the H.248 protocol packet, such as call setup process tone detection. The extended parameter of the ringback tone detection event of the packet can conveniently and quickly realize the detection and reporting function of the called user state, and can accurately define the state of the called user, so that the user obtains the detailed information of the other party; It has wide applicability, not only for CRBT service, but also for all application scenarios that may need to detect user status. This method enriches the gateway function by extending all possible user states by extending the parameters of the standard H.248 call setup process tone detection packet.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and equivalent structural or process changes made by the present specification and drawings may be directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

Claim

A method for a next-generation network NGN user status report, comprising: receiving, by the gateway, an indication message sent by the softswitch device, indicating that the gateway detects the status of the called user, where the indication message carries H.248 Protocol packet detection event;

Detecting the status of the called user according to the indication message;

Transmitting the detected called user status to the softswitch device by using the response message in the extended parameter of the H.248 protocol packet detection event, so that the softswitch device is controlled to be placed according to the called user status indication The audio device delivers the corresponding tone to the calling user.

2. The method according to claim 1, wherein the called user status comprises: a non-calling user busy state, a call state, an idle state, and/or an error state, wherein the non-calling user busy state comprises: an off-hook state The user dials the state, listens to the ring back tone, and the busy tone state; the tone includes: a ring tone, a busy tone, and/or a wait tone.

3. The method according to claim 2, wherein when the called user status is a non-calling user busy state, the value of the extended parameter is 0; when the called user status is a calling state, The extended parameter has a value of 1; when the called user state is an idle state, the extended parameter has a value of 2; and when the called user state is an error state, the extended parameter has a value of 3.

4. The method of claim 3, wherein the controlled playback device comprises a media server and/or the gateway.

The gateway of the NGN network user status 4 is characterized in that the method includes: an indication message receiving module, configured to receive an indication message sent by the softswitch device, indicating that the gateway detects the status of the called user, where the indication message carries There are H.248 protocol packet detection events; a user status detection module, configured to detect a status of the called user according to the indication message; a status parameter reporting module, configured to carry the detected extended user parameter in the H.248 protocol packet detection event The response message is reported to the softswitch device, so that the softswitch device instructs the controlled playback device to deliver a corresponding tone to the calling user according to the called user status.

The gateway according to claim 5, wherein the called user status comprises: a non-calling user busy state, a call state, an idle state, and/or an error state, wherein the non-calling user busy state comprises: an off-hook state The user dials the state, listens to the ring back tone, and the busy tone state; the tone includes: a ring tone, a busy tone, and/or a wait tone.

7. A gateway according to claim 5 or 6, wherein said controlled playback device comprises a media server and / or said gateway.

8. A system for NGN network user status reporting, comprising: a softswitch device and a gateway, wherein:

The softswitch device is configured to send, to the gateway, an indication message indicating that the gateway detects a status of the called user when the call connection is established, where the indication message carries an H.248 protocol packet detection event; and receiving the gateway The reported response message, the extended parameter in the H.248 protocol packet detection event of the response message carries the detected status of the called user, and the controlled playback device transmits the corresponding signal to the calling user according to the status of the called user. Tone

The gateway is configured to receive an indication message sent by the softswitch device, detect a status of the called user according to the indication message, and carry the extended status of the detected called user in the H.248 protocol packet detection event. The parameter is reported to the softswitch device by a response message.

9. The system according to claim 8, wherein the called user status comprises: The user busy state, the call state, the idle state, and/or the error state, wherein the non-calling user busy state includes: an off-hook state, a user dialing state, a ringback tone, and a busy tone state.

The system according to claim 8 or 9, wherein the gateway is the gateway according to any one of claims 5-7.