WO2009074014A1 - Method, device and system for triggering packet domain connection during circuit domain call - Google Patents

Method, device and system for triggering packet domain connection during circuit domain call Download PDF

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Publication number
WO2009074014A1
WO2009074014A1 PCT/CN2008/001957 CN2008001957W WO2009074014A1 WO 2009074014 A1 WO2009074014 A1 WO 2009074014A1 CN 2008001957 W CN2008001957 W CN 2008001957W WO 2009074014 A1 WO2009074014 A1 WO 2009074014A1
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WO
WIPO (PCT)
Prior art keywords
communication device
packet
circuit domain
domain
module
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2008/001957
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English (en)
French (fr)
Inventor
Yana Bi
Bo Yang
Wei Yu
Hao Zhang
Xin Jin
Jianfeng Tang
Rongrong Yu
Xiaoqing Huang
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China Mobile Communications Group Co Ltd
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China Mobile Communications Corp
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Application filed by China Mobile Communications Corp filed Critical China Mobile Communications Corp
Publication of WO2009074014A1 publication Critical patent/WO2009074014A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, device, and system for triggering a packet domain connection during a circuit domain call. Background technique
  • the media sharing technology during the call enables the two parties in the circuit domain to establish a packet domain connection as needed, and uses the packet domain connection to send the media content on the mobile terminal to the peer end, thereby realizing the sharing of media content between the mobile terminals.
  • the shared media content may be video, audio and pictures recorded in real time by the mobile terminal, or may be video, audio and pictures stored locally by the mobile terminal.
  • the call is triggered to trigger the online mode, and the connection with the PS domain is removed at the end of the call.
  • the user terminal In the first mode, the user terminal is always online. Not only does the terminal side have a large energy consumption problem, but also the resources and IP addresses of the network side. Compared with the probability of the user initiating the media sharing service, the online is not always good. s solution.
  • the call-through triggering online will bring the connection establishment invalidity to the PS domain.
  • the peak value of the telephone service occurs, it will bring a peak impact to the PS domain. Therefore, it is also necessary to consider the probability of media sharing service occurring on the established PS domain connection.
  • each CS domain call is accompanied by the process of establishing and tearing down the PS domain connection, which will undoubtedly increase the power consumption of the terminal side.
  • the prior art also provides a solution for short message triggering PS domain connection.
  • the program and the current network The medium multimedia MMS and the p us h Mail (email push service) use SMS to trigger the PS domain connection similarly, which will not bring unnecessary overhead to the network side and the terminal side; and, the default mobile terminal is not connected to the PS domain.
  • the state when the sharing initiator initiates the PS domain service, activates the user terminal to initiate a connection request to the network side, that is, sends a sharing request message to the media sharing application server (Application Server, AS).
  • AS media sharing application server
  • the AS sends a special binary message to the shared recipient to prompt the sharing recipient to make a network connection and register with the AS.
  • the above-mentioned short message triggering the PS domain connection scheme is a mature terminal PS domain network connection activation scheme on the live network, and the technical implementation is relatively simple.
  • the media sharing service has higher real-time requirements than the MMS and Push Mail of the existing network.
  • the SMS triggers the implementation of the PS domain connection scheme
  • the transmission quality of the SMS transmission channel cannot be guaranteed.
  • the transmission quality problem is particularly obvious during special periods (such as holidays).
  • the SMS triggers the PS domain connection the following lengths are included: (1) The activation time of the calling network connection; (2) The activation time of the called network connection; (3) The length of the short message transmission; (4) The length of the signaling interaction established by the application layer session, therefore, the delay of the media sharing service is large. . Summary of the invention
  • the embodiment of the invention provides a method for triggering a packet domain connection during a circuit domain call, which is used to enhance the reliability of triggering a packet domain connection and shorten the end-to-end packet domain connection establishment duration.
  • the method includes:
  • the first communication device sends a circuit domain signaling signal to the second communication device during the circuit domain call with the second communication device, where the circuit domain signaling signal includes trigger indication information for establishing a packet domain connection;
  • the second communication device triggers the local device to establish a packet domain connection with the first communication device through the packet network according to the trigger indication information.
  • the embodiment of the present invention further provides a communication device, which is used to enhance the reliability of triggering a packet domain connection and shorten the end-to-end packet domain connection establishment duration.
  • the communication device includes:
  • a communication module configured to perform circuit domain communication with other communication devices
  • a generating module configured to perform a circuit domain call between the communication module and the other communication device Generating a circuit domain signaling signal, where the circuit domain signaling signal includes trigger indication information for establishing a packet domain connection;
  • a message sending module configured to send, to the other communications device, the circuit domain signaling signal generated by the generating module.
  • the embodiment of the present invention further provides a communication device, which is used to enhance the reliability of triggering a packet domain connection and shorten the end-to-end packet domain connection establishment duration.
  • the communication device includes:
  • a receiving module configured to receive, during a circuit domain call with another communication device, a circuit domain signaling signal sent by the other communications device, where the circuit domain signaling signal includes trigger indication information for establishing a packet domain connection;
  • a triggering module configured to trigger, according to the trigger indication information, the device to establish a packet domain connection with the other communications device by using a packet network.
  • the embodiment of the present invention further provides a communication system for enhancing the reliability of triggering a packet domain connection and shortening the end-to-end packet domain connection establishment duration.
  • the communication system includes a first communication device and a second communication device, where:
  • a first communication device configured to send a circuit domain signaling signal to the second communications device during the circuit domain call with the second communications device, where the circuit domain signaling signal includes triggering indication information for establishing a packet domain connection;
  • a second communication device configured to trigger, according to the trigger indication information, the device to establish a packet domain connection with the first communication device by using a packet network.
  • the first communications device sends a circuit domain signaling signal to the second communications device during the circuit domain call with the second communications device, where the circuit domain signaling signal includes triggering to establish a packet domain connection.
  • the second communication device triggers the device to establish a packet domain connection with the first communication device through the packet network according to the trigger indication information, so as to use the existing circuit domain connection and the circuit domain letter during the circuit domain call
  • Let the signal trigger the packet domain connection so that the operation of triggering the packet domain connection does not need to occupy additional network resources and addresses, and does not need to additionally increase the terminal power consumption.
  • the existing domain domain connection is used to trigger the packet domain connection by using the circuit domain signaling signal.
  • FIG. 1 is a flowchart of a process for triggering a packet domain connection during a circuit domain call according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a process for triggering a packet domain connection between a mobile terminal A and a mobile terminal B during a circuit domain call according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of bearer loading of a circuit domain signaling signal protocol stack according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a packet domain connection triggered by a DTMF message according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a packet domain connection triggered by a Facility message according to an embodiment of the present invention
  • FIG. 7A is a schematic diagram of a communication device according to an embodiment of the present invention. Schematic;
  • FIG. 7B is a schematic structural diagram of another communication device according to an embodiment of the present invention.
  • FIG. 7C is a schematic structural diagram of still another communication device according to an embodiment of the present invention.
  • FIG. 8A is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 8B is a schematic structural diagram of another communication device according to an embodiment of the present invention.
  • FIG. 8C is a schematic structural diagram of still another communication device according to an embodiment of the present invention.
  • FIG. 8D is a schematic structural diagram of still another communication device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a communication system in a specific example according to an embodiment of the present invention. detailed description
  • a process of triggering a packet domain connection during a circuit domain call is as follows:
  • Step 11 The first communications device sends a circuit domain signaling signal to the second communications device during the circuit domain call with the second communications device, where the circuit domain signaling signal includes triggering indication information for establishing a packet domain connection.
  • Step 12 The second communications device triggers the local device to establish a packet domain connection with the first communications device by using the packet network according to the triggering indication information.
  • the first communication device may send a circuit domain signaling signal to the second communication device according to the indication of the user after receiving the indication that the user initiates the packet domain service.
  • the circuit domain signaling signal may further include identification information of an application logic used by the user to initiate a packet domain service.
  • the second communication device may notify the application logic on the device based on the underlying established packet domain connection and the corresponding application on the first communication device according to the identification information of the application logic.
  • the logic communicates.
  • the second communication device also transmits a response message confirming receipt of the circuit domain signaling signal to the corresponding application logic on the first communication device.
  • the application logic on the first communication device After receiving the response message, the application logic on the first communication device sends an application layer signaling message to the corresponding application logic on the second communication device.
  • the first communication device and the second communication device may be terminal devices, such as mobile terminals, PCs, etc., of course, may also be intermediate processing devices in the network.
  • Step 21 Mobile terminal A Receiving an indication that the user initiates the packet domain service, and generating, according to the indication of the user, a circuit domain signaling signal that is sent to the mobile terminal B, where the circuit domain signaling signal includes triggering indication information for establishing a packet domain connection and used by the user to initiate the packet domain service. Identification information of the application logic.
  • Step 22 The mobile terminal A transmits the generated circuit domain signaling signal to the mobile terminal B.
  • Step 23 The mobile terminal B triggers itself to establish a packet domain connection with the mobile terminal A through the packet network according to the trigger indication information of the established packet domain connection in the received circuit domain signaling signal, on the premise that the user accepts the media sharing.
  • Step 24 According to the identification information of the application logic, notify the application logic on the mobile terminal B to communicate with the corresponding application logic on the mobile terminal A based on the packet domain connection established by the underlying layer, and correspond to the corresponding application logic on the mobile terminal A.
  • the application logic sends a response message confirming that the circuit domain signaling signal has been received.
  • Step 25 After receiving the response message, the mobile terminal A sends an application layer signaling message to the corresponding application logic on the mobile terminal B.
  • the circuit domain signaling signals in the flow shown in Figures 1 and 2 are special signals that can be end-to-end transmitted and can be perceived by the terminal. Since the end-to-end transmission of the signaling signal of the circuit domain is segmented by different protocols, it is necessary to examine the bearer of the signals of different protocols in each segment.
  • the circuit domain signaling signal is carried by the Non Access Stratum (NAS) protocol between the terminal equipment and the Mobile Service Switch Center (MSC), and the BICC is used in the 3G core network (independent of Bearer Independent Call Control protocol (bearer protocol), its bearer stack bearer is shown in Figure 3.
  • NAS Non Access Stratum
  • MSC Mobile Service Switch Center
  • the circuit domain signaling signal may be a DTMF (Dual Tone Multi-Frequency) message or a Facility message.
  • the sharing initiator (first communication device) user triggers the media sharing service
  • the circuit domain signaling signal is used to send an indication to the calling peer (second communication device) to trigger the packet domain connection.
  • the shared recipient user receives such an indication and can choose whether or not to accept such an indication. Whether the shared recipient user accepts the indication is also returned to the shared originator user via the circuit domain signaling signal.
  • the second communication device may determine, according to the received circuit domain signaling signal, whether to accept the corresponding packet domain connection establishment request; when determining to accept the packet domain connection establishment request, triggering establishment of the packet domain connection, and receiving the request indication Information is also returned to the first communication device via the circuit domain signaling signal.
  • the DTMF message When the circuit domain signaling signal is a DTMF message, the DTMF message includes trigger indication information for establishing a packet domain connection.
  • the MSC of the second communication device side receives the DTMF message, if the MSC does not use the DTMF message. The message is sent to the second communication device, and the MSC converts the DTMF message into a DTMF audio signal, the DTMF audio signal includes trigger indication information for establishing a packet domain connection, and then filtering the DTMF message.
  • the DTMF audio signal is carried by the APM (Application Transport Mechanism) message of the BICC, and the DTMF audio signal is mixed with the voice signal sent by the first communication device to the second communication device to become a mixed voice signal. And sending to the second communication device, the second communication device extracting the DTMF audio signal from the received mixed voice signal, thereby obtaining a touch for establishing a packet domain connection. Send instructions.
  • APM Application Transport Mechanism
  • the second communication device extracting the DTMF audio signal from the received mixed voice signal, thereby obtaining a touch for establishing a packet domain connection.
  • Send instructions since the DTMF audio signal is extracted from the mixed speech signal, new hardware support needs to be added, so new hardware needs to be added to the second communication device to support the extraction of the DTMF audio signal from the mixed speech signal.
  • the MSC on the second communication device side directly sends the DTMF message to the second communication device, and the second communication device can directly obtain the trigger for establishing the packet domain connection from the DTMF message.
  • the user of the first communication device can send an indication of initiating the packet domain service by using a button or a menu option.
  • the indication for initiating the packet domain service is sent by using a button
  • the DTMF value corresponding to the button needs to be preset, and The first communication device stores a correspondence between the button and the DTMF value.
  • the first communication device can obtain the DTMF value corresponding to the button by querying the corresponding relationship, thereby The DTMF value yields the corresponding DTMF message.
  • the Facility message is a two-way message (Mobile to Network and Network to Mobile). Because of the current TD network, the MSC sends a Facility message from the access network to the core network.
  • the conversion of the bearer message is not yet defined.
  • the triggering indication information of the packet domain connection needs to be established by using the Facility message bearer. Therefore, the mapping conversion relationship of the Facility message from the access network to the bearer message of the core network needs to be set in advance.
  • the trigger indication information is also required to be carried through a reserved field of the Facility message.
  • the embodiment of the present invention further provides a first communication device, which is configured as shown in FIG. 7A, and includes: a communication module 71, a generation module 72, and a message sending module 73.
  • the communication module 71 is used for The communication device performs a circuit domain call;
  • the generating module 72 is configured to generate a circuit domain signaling signal, where the circuit domain signaling signal includes a triggering indication for establishing a packet domain connection, in the process that the communication module 71 performs a circuit domain call with another communication device.
  • a message sending module 73 configured to send the circuit domain signaling signal generated by the generating module 72 to the other communications device.
  • the communication device may further include: a first receiving module 74, configured to: when the communication module 71 performs a circuit domain call with another communication device, receive an indication that the user initiates a packet domain service; and the generating module 72 is configured according to The indication generates the circuit domain signaling signal.
  • the circuit domain signaling signal further includes the identification information of the application logic used by the user to initiate the packet domain service
  • the communication device may further include: an identifier information providing module 75, configured to use the application logic used by the user to initiate the packet domain service.
  • the identification information is provided to the generating module 72.
  • the circuit domain signaling signal generated by the generating module 72 further includes identification information of the application logic.
  • the communication device may further include a second receiving module 76, configured to receive a response message sent by the other communication device to confirm that the circuit domain signaling signal has been received.
  • a second receiving module 76 configured to receive a response message sent by the other communication device to confirm that the circuit domain signaling signal has been received.
  • the communication device may further include a first application logic module 77, configured to send an application layer signaling message to the corresponding application logic on the other communication device after the second receiving module 76 receives the response message.
  • a first application logic module 77 configured to send an application layer signaling message to the corresponding application logic on the other communication device after the second receiving module 76 receives the response message.
  • the communication device and the other communication device may be terminal devices, such as mobile terminals, PCs, etc., of course, may also be intermediate processing devices in the network.
  • the embodiment of the present invention further provides a second communication device, which is configured as shown in FIG. 8A, and includes: a receiving module 81 and a triggering module 82.
  • the receiving module 81 is configured to perform circuit with other communication devices.
  • the circuit domain signaling signal sent by the other communication device is received, and the circuit domain signaling signal includes triggering indication information for establishing a packet domain connection.
  • the triggering module 82 is configured to trigger the device to pass according to the triggering indication information.
  • the packet network establishes a packet domain connection with other communication devices that transmit the circuit domain signaling signals.
  • the circuit domain signaling signal further includes the identification information of the application logic used by the user of the other communication device to initiate the packet domain service.
  • the communication device may further include a message parsing module 83, configured to receive The circuit domain signaling signal received by the module 81 is parsed to obtain the triggering indication information for establishing the packet domain connection and the identification information of the application logic.
  • the communication device may further include a second application logic module 84 for using the triggering module 82.
  • the notification and according to the identification information of the application logic obtained by the message parsing module 83, triggers the corresponding application logic to communicate with the application logic on the other communication device through the underlying packet domain connection.
  • the communication device may further include a response message sending module 85, configured to send, to the application logic on the other communications device, a response message confirming that the circuit domain signaling signal has been received; the communications device An application layer signaling message receiving module 86 may be further included for receiving the It is an application layer signaling message sent by the communication device.
  • a response message sending module 85 configured to send, to the application logic on the other communications device, a response message confirming that the circuit domain signaling signal has been received
  • An application layer signaling message receiving module 86 may be further included for receiving the It is an application layer signaling message sent by the communication device.
  • the communication device and the other communication device may be terminal devices, such as mobile terminals, PCs, etc., of course, may also be intermediate processing devices in the network.
  • the communication device may further include a determining module 87, configured to determine, according to the received circuit domain signaling signal, whether to accept a corresponding packet domain connection establishment request; and, the sending module 88, configured to determine to accept the packet
  • the notification triggering module 82 triggers the establishment of the packet domain connection, and returns the indication information of the acceptance request to the other communication device through the circuit domain signaling signal.
  • the circuit domain signaling signal may be a DTMF message or a Facility message, and the specific implementation manner is described in the foregoing method embodiment for triggering a packet domain connection during a circuit domain call. The same, no longer repeat here.
  • an embodiment of the present invention further provides a communication system, which has a structure as shown in FIG. 9, and includes: a first communication device 91 and a second communication device 92, wherein: the first communication device 91 is configured to During the circuit domain call, the second communication device 92 sends a circuit domain signaling signal to the second communication device 92, where the circuit domain signaling signal includes trigger indication information for establishing a packet domain connection; and the second communication device 92 is configured to: Based on the received trigger indication information, the device is triggered to establish a packet domain connection with the first communication device 91 through the packet network.
  • the first communication device 91 can adopt the structure of the first communication device provided in the foregoing embodiment of the present invention
  • the second communication device 92 can use the structure of the second communication device provided in the foregoing embodiment of the present invention. I won't go into details here.
  • the generating module in the mobile terminal A is implemented by the CS domain signaling processing module, and the first application logic module is implemented by the PS domain application logic, and other modules are not shown.
  • the trigger module in the mobile terminal B is implemented by the CS domain signaling processing module, and the second application logic module is implemented by the PS domain application logic, and other modules are not shown.
  • the CS domain signaling processing module in the mobile terminal A and the mobile terminal B can generate a circuit domain signaling signal, and carry trigger indication information for establishing a packet domain connection in the circuit domain signaling signal.
  • the circuit domain signaling signal may also include identification information of the corresponding application logic.
  • CS domain signaling The processing module can trigger itself to establish a packet domain connection with the initiator according to the trigger indication information.
  • the program can be stored in a computer readable storage medium, and the storage medium can include: ROM, RAM. , disk or CD, etc.
  • the end-to-end packet domain connection establishment duration includes: 1) end-to-end signaling transmission delay, which is 4 ⁇ small; 2) both PDP (Packet Data Protocol) establishment time, The two sides establish a PDP channel almost simultaneously; 3) the signaling interaction duration established by the application layer session.
  • the first communications device sends a circuit domain signaling signal to the second communications device during the circuit domain call with the second communications device, where the circuit domain signaling signal includes triggering to establish a packet domain connection.
  • the second communication device triggers the device to establish a packet domain connection with the first communication device through the packet network according to the trigger indication information, so as to use the existing circuit domain connection and the circuit domain letter during the circuit domain call
  • the signal triggers the packet domain connection, so that the operation of triggering the packet domain connection does not need to occupy additional network resources and IP addresses, and does not need to additionally increase the terminal power consumption.
  • the existing domain domain connection is used to trigger the packet domain connection through the circuit domain signaling signal, which is not required to be triggered by the short message transmission channel compared with the prior art short message triggering packet domain connection, and the circuit domain signaling channel is fast and reliable.
  • the advantages of the trigger operation are significantly enhanced, and the end-to-end packet domain connection establishment time is significantly shortened.

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Description

电路域通话期间触发分组域连接的方法、 设备及系统 技术领域
本发明涉及通信技术领域， 尤其涉及电路域通话期间触发分组域连接的 方法、 设备及系统。 背景技术
随着移动通信系统的宽带化发展趋势， 新的多媒体数据增值业务不断涌 现，其中包括与电路域（ CS域， Circuit Switch domain )话音结合的分组域（ PS 域， Packet Switch domain ) 业务。 通话过程中的媒体共享技术使电路域通话 的双方能够根据需要随时建立分组域连接， 并利用该分组域连接将移动终端 上的媒体内容发送给对端， 从而实现移动终端之间媒体内容的共享。 共享的 媒体内容可以是移动终端实时摄录的视频、 音频和图片， 也可以是该移动终 端本地存储的视频、 音频和图片。
媒体共享技术中， 用户在线模式有如下两种：
一、 一直在线方式， 用户一直与 PS域保持连接状态。
二、 电话打通触发在线方式， 在电话结束时拆除与 PS域的连接。
上述媒体共享技术中的用户在线模式存在如下不足：
对于第一种方式， 用户终端始终在线， 不仅终端侧存在能耗大的问题， 还占用了网络侧的资源和 IP地址，相对于用户发起媒体共享业务的概率来说， 始终在线并不是很好的解决方案。
对于第二种方式，电话打通触发在线会给 PS域带来连接建立无效的问题。 对网络侧来说， 当电话业务出现峰值的时候，会给 PS域带来峰值沖击， 因此， 同样需要考虑所建立的 PS域连接上发生媒体共享业务的概率。对终端侧来说， 每次 CS域通话都伴随 PS域连接建立和拆除的过程， 无疑会增加终端侧的功 耗。
此外， 现有技术还提供了短信触发 PS域连接的解决方案。 该方案与现网 中多媒体彩信和 push Mail (电子邮件推送业务）采用短信触发 PS域连接的 方案类似， 不会给网络侧和终端侧带来不必要的开销； 并且， 默认移动终端 与 PS域处于非连接状态， 当共享发起方发起 PS域业务时， 才激活用户终端 向网络侧发起连接请求， 即向媒体共享应用服务器 （ Application Server, AS ) 发送共享请求消息。 当 AS判断共享接受方不在线时， AS会向共享接受方发 送特殊的二进制短信来提示共享接受方进行网络连接并向 AS注册。
上述短信触发 PS域连接的方案是现网成熟的终端 PS域网络连接激活方 案， 技术实现比较简单， 但是， 媒体共享业务与现网的彩信、 Push Mail相比， 对实时性要求较高。 该短信触发 PS域连接方案实施时， 短信传输通道的传输 质量不能得到保证， 在特殊时段（如节假日 ）传输质量问题尤为明显； 另夕卜， 由于短信触发 PS域连接时包含如下几段时长： （ 1 ) 主叫网络连接激活时长； ( 2 )被叫网络连接激活时长； （3 )短信传输时长； （4 )应用层会话建立的信 令交互时长， 因此， 造成媒体共享业务时延较大。 发明内容
本发明实施例提供一种电路域通话期间触发分组域连接的方法， 用以增 强触发分组域连接的可靠性， 缩短端到端的分组域连接建立时长， 该方法包 括：
第一通信设备在与第二通信设备进行电路域通话的过程中， 向第二通信 设备发送电路域信令信号， 所述电路域信令信号包括建立分组域连接的触发 指示信息；
第二通信设备根据所述触发指示信息， 触发本设备通过分组网络与第一 通信设备建立分组域连接。
本发明实施例还提供一种通信设备， 用以增强触发分组域连接的可靠性， 缩短端到端的分组域连接建立时长， 该通信设备包括：
通信模块， 用于与其它通信设备进行电路域通话；
生成模块， 用于在通信模块与所述其它通信设备进行电路域通话的过程 中， 生成电路域信令信号， 所述电路域信令信号包括建立分组域连接的触发 指示信息； 以及
消息发送模块， 用于向所述其它通信设备发送所述生成模块生成的所述 电路域信令信号。
本发明实施例还提供一种通信设备， 用以增强触发分组域连接的可靠性， 缩短端到端的分组域连接建立时长， 该通信设备包括：
接收模块， 用于在与其它通信设备进行电路域通话的过程中， 接收所述 其它通信设备发送的电路域信令信号， 所述电路域信令信号包括建立分组域 连接的触发指示信息；
触发模块， 用于根据所述触发指示信息， 触发本设备通过分组网络与所 述其他通信设备建立分组域连接。
本发明实施例还提供一种通信系统， 用以增强触发分组域连接的可靠性， 缩短端到端的分组域连接建立时长， 该通信系统包括第一通信设备和第二通 信设备， 其中：
第一通信设备， 用于在与第二通信设备进行电路域通话的过程中， 向第 二通信设备发送电路域信令信号， 所述电路域信令信号包括建立分组域连接 的触发指示信息；
第二通信设备， 用于根据所述触发指示信息， 触发本设备通过分组网络 与第一通信设备建立分组域连接。
本发明实施例中， 第一通信设备在与第二通信设备进行电路域通话的过 程中， 向第二通信设备发送电路域信令信号， 所述电路域信令信号包括建立 分组域连接的触发指示信息； 第二通信设备根据所述触发指示信息， 触发本 设备通过分组网络与第一通信设备建立分组域连接， 从而在电路域通话过程 中， 利用已有的电路域连接， 通过电路域信令信号触发分组域连接， 使触发 分组域连接的操作不必额外占用网络资源和地址， 不必额外增加终端功耗。 利用已有的电路域连接通过电路域信令信号触发分组域连接， 与现有技术中 短信触发分组域连接相比， 不必另行通过短信传输通道进行触发， 并且， 由 于电路域信令通道快速可靠的优点， 使触发操作可靠性明显增强， 端到端的 分组域连接建立时长明显缩短。 附图说明
图 1为本发明实施例中电路域通话期间触发分组域连接的处理流程图； 图 2为本发明实施例中移动终端 A与移动终端 B在电路域通话期间触发 分组域连接的处理流程图；
图 3为本发明实施例中电路域信令信号协议栈承载示意图；
图 4、 图 5为本发明实施例中通过 DTMF消息触发分组域连接示意图； 图 6为本发明实施例中通过 Facility消息触发分组域连接示意图； 图 7A为本发明实施例中一种通信设备的结构示意图；
图 7B为本发明实施例中另一种通信设备的结构示意图；
图 7C为本发明实施例中又另一种通信设备的结构示意图；
图 8A为本发明实施例中一种通信设备的结构示意图；
图 8B为本发明实施例中另一种通信设备的结构示意图；
图 8C为本发明实施例中又另一种通信设备的结构示意图；
图 8D为本发明实施例中再另一种通信设备的结构示意图；
图 9为本发明实施例中通信系统的结构示意图；
图 10为本发明实施例中通信系统在一个具体实例中的结构示意图。 具体实施方式
下面结合说明书附图对本发明实施例进行详细说明。
如图 1 所示， 本发明实施例中， 电路域通话期间触发分组域连接的处理 流程如下：
步骤 11、 第一通信设备在与第二通信设备进行电路域通话的过程中， 向 第二通信设备发送电路域信令信号， 该电路域信令信号包括建立分组域连接 的触发指示信息； 步骤 12、 第二通信设备根据该触发指示信息， 触发本设备通过分组网络 与第一通信设备建立分组域连接。
图 1 所示流程中， 第一通信设备可以在接收到用户发起分组域业务的指 示后， 根据用户的指示， 向第二通信设备发送电路域信令信号。
所述电路域信令信号中还可以包括该用户发起分组域业务所用的应用逻 辑的标识信息。 第二通信设备在触发与第一通信设备的分组域连接后， 可以 根据该应用逻辑的标识信息， 通知本设备上的该应用逻辑基于底层建立的分 组域连接与第一通信设备上对应的应用逻辑进行通信。
第二通信设备还向第一通信设备上对应的应用逻辑发送确认已收到所述 电路域信令信号的应答消息。 第一通信设备上的该应用逻辑接收到该应答消 息后， 向第二通信设备上对应的应用逻辑发送应用层信令消息。
第一通信设备和第二通信设备可以是终端设备， 如移动终端、 PC机等， 当然， 也可以是网絡中的中间处理设备。
以第一通信设备和第二通信设备都是移动终端为例， 如图 2 所示， 移动 终端 A与移动终端 B在电路域通话期间触发分组域连接的处理流程如下： 步骤 21、 移动终端 A接收用户发起分组域业务的指示， 根据用户的该指 示， 生成向移动终端 B发送的电路域信令信号， 该电路域信令信号包括建立 分组域连接的触发指示信息以及用户发起分组域业务所用的应用逻辑的标识 信息。
步骤 22、 移动终端 A向移动终端 B传送生成的电路域信令信号。
步骤 23、 移动终端 B根据接收的电路域信令信号中的建立分组域连接的 触发指示信息， 在其用户接受媒体共享的前提下， 触发自身通过分组网络与 移动终端 A建立分组域连接。
步骤 24、 才艮据所述应用逻辑的标识信息， 通知在移动终端 B上的应用逻 辑基于底层建立的分组域连接与移动终端 A上对应的应用逻辑进行通信， 并 向移动终端 A上对应的应用逻辑发送确认已收到所述电路域信令信号的应答 消息。 步骤 25、 移动终端 A收到该应答消息后， 向移动终端 B上对应的应用逻 辑发送应用层信令消息。
图 1和图 2所示流程中的电路域信令信号， 是能够端到端传输的可被终 端感知的特殊信号。 由于电路域信令信号端到端的传输被不同的协议分段， 因此需要考察各段不同协议对信号的承载。 电路域信令信号在终端设备到移 动业务交换中心（ MSC, Mobile Service Switch Center )之间釆用非接入层（ Non Access Stratum, NAS )协议承载， 在 3G核心网络中则采用 BICC (独立于承 载的呼叫控制协议， Bearer Independent Call Control protocol )协议 ? 载， 其协 议栈承载详见图 3所示。
本发明实施例中， 电路域信令信号可以是 DTMF ( Dual Tone Multi-Frequency, 双音多频） 消息， 也可以是 Facility (设备） 消息。 当共享 发起方 （第一通信设备） 用户触发媒体共享业务时， 利用电路域信令信号向 通话对端 （第二通信设备）发送触发分组域连接的指示。 共享接受方用户收 到这样的指示， 可以选择是否接受这样的指示。 共享接受方用户是否接受该 指示也通过电路域信令信号返回给共享发起方用户。 即第二通信设备可以根 据接收到的电路域信令信号， 确定是否接受对应的分组域连接建立请求； 在 确定接受该分组域连接建立请求时， 触发建立分组域连接， 并将接受请求的 指示信息也通过电路域信令信号返回给第一通信设备。
当电路域信令信号为 DTMF消息时， 该 DTMF消息包括建立分组域连接 的触发指示信息，如图 4所示，第二通信设备侧的 MSC接收到该 DTMF消息， 如果该 MSC不将该 DTMF消息发送至第二通信设备， 则该 MSC将该 DTMF 消息转换成 DTMF音频信号， 该 DTMF音频信号中包括建立分组域连接的触 发指示信息， 然后过滤掉该 DTMF消息。 在 3G核心网络中 DTMF音频信号 通过 BICC的 APM ( Application Transport Mechanism, 应用层传输机制） 消 息承载， 该 DTMF音频信号与第一通信设备向第二通信设备发送的语音信号 进行混合成为混合语音信号， 再发送给第二通信设备， 第二通信设备从接收 到的混合语音信号中提取出 DTMF音频信号， 从而获得建立分组域连接的触 发指示信息。 在这种情况下， 由于从混合语音信号中提取 DTMF音频信号， 需要增加新的硬件支持， 因此需要在第二通信设备上增加新的硬件来支持从 混合语音信号中提取 DTMF音频信号。
如图 5所示，第二通信设备侧的 MSC接收到该 DTMF消息后，将该 DTMF 消息直接发送给第二通信设备， 第二通信设备可以直接从该 DTMF消息中获 取建立分组域连接的触发指示信息。
上述两种情况下， 第一通信设备的用户可以通过按键或者菜单选项来发 送发起分组域业务的指示， 在通过按键发送发起分组域业务的指示时， 需要 预先设置按键对应的 DTMF取值， 并在第一通信设备中存储按键与 DTMF取 值之间的对应关系， 当第一通信设备接收到用户的按键信息后， 通过查询该 对应关系， 可以获得该按键对应的 DTMF取值， 从而根据该 DTMF取值产生 相应的 DTMF消息。
当电路域信令信号为 Facility消息时，如图 6所示， Facility消息是双向的 消息 （ Mobile to Network和 Network to Mobile ), 由于目前 TD网络中， MSC 对 Facility消息从接入网向核心网的承载消息的转换尚未定义， 而本发明实施 例中， 需要利用 Facility消息承载建立分组域连接的触发指示信息， 所以需要 预先设置 Facility消息从接入网向核心网的承载消息的映射转换关系。 另外， 还需要通过 Facility消息的预留字段， 来携带所述触发指示信息。
基于同一发明构思， 本发明实施例还提供第一种通信设备， 其结构如图 7A所示， 包括： 通信模块 71、 生成模块 72和消息发送模块 73; 其中， 通信 模块 71， 用于与其它通信设备进行电路域通话； 生成模块 72, 用于在通信模 块 71与其它通信设备进行电路域通话的过程中， 生成电路域信令信号， 该电 路域信令信号包括建立分组域连接的触发指示信息； 以及， 消息发送模块 73 , 用于向上述其它通信设备发送生成模块 72生成的电路域信令信号。
如图 7B所示， 该通信设备还可以包括： 第一接收模块 74, 用于在通信 模块 71与其它通信设备进行电路域通话的过程中， 接收用户发起分组域业务 的指示； 生成模块 72根据所述指示， 生成该电路域信令信号。 所述电路域信令信号中还包括用户发起分组域业务所用的应用逻辑的标 识信息， 则该通信设备还可以包括： 标识信息提供模块 75， 用于将用户发起 分组域业务所用的应用逻辑的标识信息提供给生成模块 72 ,生成模块 72生成 的电路域信令信号中还包括该应用逻辑的标识信息。
如图 7C所示， 该通信设备还可以包括第二接收模块 76， 用于接收其它 通信设备发送的确认已收到所述电路域信令信号的应答消息。
该通信设备还可以包括第一应用逻辑模块 77 ,用于在第二接收模块 76接 收到所述应答消息后， 向上述其它通信设备上对应的应用逻辑发送应用层信 令消息。
该通信设备与所述其它通信设备可以为终端设备，如移动终端、 PC机等， 当然， 也可以是网络中的中间处理设备。
基于同一发明构思， 本发明实施例还提供第二种通信设备， 其结构如图 8A所示， 包括： 接收模块 81、 触发模块 82; 其中， 接收模块 81 , 用于在与 其它通信设备进行电路域通话的过程中， 接收其它通信设备发送的电路域信 令信号， 该电路域信令信号包括建立分组域连接的触发指示信息； 触发模块 82， 用于根据该触发指示信息， 触发本设备通过分组网络与发送该电路域信 令信号的其他通信设备建立分组域连接。
所述电路域信令信号中还包括所述其他通信设备的用户发起分组域业务 所用的应用逻辑的标识信息， 如图 8B所示， 该通信设备还可以包括消息解析 模块 83， 用于对接收模块 81接收到的电路域信令信号进行解析， 获得其中的 建立分组域连接的触发指示信息和应用逻辑的标识信息； 该通信设备还可以 包括第二应用逻辑模块 84， 用于根据触发模块 82的通知， 并根据消息解析模 块 83解析获得的应用逻辑的标识信息， 触发对应的应用逻辑通过底层建立的 分组域连接与其它通信设备上的该应用逻辑进行通信。
如图 8C所示， 该通信设备还可以包括应答消息发送模块 85 , 用于向所 述其他通信设备上的该应用逻辑发送确认已收到所述电路域信令信号的应答 消息； 该通信设备还可以包括应用层信令消息接收模块 86 , 用于接收所述其 它通信设备发送的应用层信令消息。
该通信设备与所述其它通信设备可以为终端设备，如移动终端、 PC机等， 当然， 也可以是网络中的中间处理设备。
如图 8D所示， 该通信设备还可以包括确定模块 87, 用于根据接收的电 路域信令信号， 确定是否接受对应的分组域连接建立请求； 以及， 发送模块 88, 用于在确定接受分组域连接建立请求时， 通知触发模块 82触发建立分组 域连接， 并将接受请求的指示信息通过电路域信令信号返回给所述其他通信 设备。
上述两种通信设备的实施例中，所述电路域信令信号可以是 DTMF消息， 也可以是 Facility消息， 其具体实施方式与前述电路域通话期间触发分组域连 接的方法实施例中所描述的相同， 此处不再赘述。
基于同一发明构思， 本发明实施例还提供一种通信系统， 其结构如图 9 所示， 包括： 第一通信设备 91和第二通信设备 92, 其中： 第一通信设备 91 , 用于在与第二通信设备 92进行电路域通话的过程中， 向第二通信设备 92发 送电路域信令信号， 该电路域信令信号包括建立分组域连接的触发指示信息； 第二通信设备 92, 用于根据接收的该触发指示信息， 触发本设备通过分组网 络与第一通信设备 91建立分组域连接。
其中， 第一通信设备 91可以采用上述本发明实施例中提供的第一种通信 设备的结构， 第二通信设备 92可以釆用上述本发明实施例中提供的第二种通 信设备的结构， 此处不再赘述。
仍以移动终端为例， 如图 10所示， 移动终端 A中生成模块通过 CS域信 令处理模块实现， 第一应用逻辑模块通过 PS域应用逻辑实现， 其它模块未画 出。移动终端 B中触发模块通过 CS域信令处理模块实现，第二应用逻辑模块 通过 PS域应用逻辑实现， 其它模块未画出。
其中， 移动终端 A和移动终端 B中的 CS域信令处理模块能够生成电路 域信令信号， 并在该电路域信令信号中携带建立分组域连接的触发指示信息。 该电路域信令信号还可以包含对应的应用逻辑的标识信息。 同时， CS域信令 处理模块能够根据触发指示信息， 触发自身与发起方建立分组域连接。
本领域普通技术人员可以理解上述实施例方法中的全部或部分步骤是可 以通过程序来指令相关硬件来完成的， 该程序可以存储于一计算机可读存储 介质中， 存储介质可以包括： ROM、 RAM, 磁盘或光盘等。
本发明实施例中， 端到端的分组域连接建立时长包括： 1 ) 端到端信令发 送时延， 此时延 4艮小； 2 ) 双方 PDP ( Packet Data Protocol, 数据包协议） 建 立时间， 双方几乎同时建立 PDP通道； 3 )应用层会话建立的信令交互时长。
本发明实施例中， 第一通信设备在与第二通信设备进行电路域通话的过 程中， 向第二通信设备发送电路域信令信号， 所述电路域信令信号包括建立 分组域连接的触发指示信息； 第二通信设备根据所述触发指示信息， 触发本 设备通过分组网络与第一通信设备建立分组域连接， 从而在电路域通话过程 中， 利用已有的电路域连接， 通过电路域信令信号触发分组域连接， 使触发 分组域连接的操作不必额外占用网络资源和 IP地址，不必额外增加终端功耗。 利用已有的电路域连接通过电路域信令信号触发分组域连接， 与现有技术中 短信触发分组域连接相比， 不必另行通过短信传输通道进行触发， 并且， 由 于电路域信令通道快速可靠的优点， 使触发操作可靠性明显增强， 端到端的 分组域连接建立时长明显缩短。
最后应说明的是： 以上实施例仅用以说明本发明实施例中的技术方案而 非限制， 尽管参照较佳实施例对本发明进行了详细说明， 本领域的普通技术 人员应当理解， 可以对本发明实施例中的技术方案进行修改或者等同替换， 而不脱离本发明实施例中技术方案的精神和范围。

Claims

权 利 要 求
1、 一种电路域通话期间触发分组域连接的方法， 其特征在于， 该方法包 括：
第一通信设备在与第二通信设备进行电路域通话的过程中， 向第二通信 设备发送电路域信令信号， 所述电路域信令信号包括建立分组域连接的触发 指示信息；
第二通信设备根据所述触发指示信息， 触发本设备通过分组网络与第一 通信设备建立分组域连接。
2、 如权利要求 1所述的方法， 其特征在于， 所述电路域信令信号中还包 括第一通信设备的用户发起分组域业务所用的应用逻辑的标识信息；
第二通信设备触发与第一通信设备建立分组域连接后， 根据所述应用逻 辑的标识信息， 通知本设备上的对应应用逻辑基于建立的分组域连接与第一 通信设备上对应的应用逻辑进行通信。
3、 如权利要求 2所述的方法， 其特征在于， 还包括： 第二通信设备向第 一通信设备上所述应用逻辑发送确认已收到所述电路域信令信号的应答消 息；
该方法进一步包括：
第一通信设备上的所述应用逻辑接收到所述应答消息后， 向第二通信设 备上的对应应用逻辑发送应用层信令消息。
4、 如权利要求 1所述的方法， 其特征在于， 所述第二通信设备接收到双 音多频 DTMF音频信号与第一通信设备向第二通信设备发送的语音信号的混 合语音信号， 并从所述混合语音信号中提取出所述 DTMF 音频信号， 所述 DTMF音频信号中包括建立分组域连接的触发指示信息。
5、 如权利要求 1所述的方法， 其特征在于， 所述第二通信设备接收到双 音多频 DTMF消息，所述 DTMF消息中包括建立分组域连接的触发指示信息。
6、 如权利要求 1所述的方法， 其特征在于， 所述第二通信设备接收到设 备 Facility消息， 所述 Facility消息的预留字段携带建立分组域连接的触发指 示信息。
7、 一种通信设备， 其特征在于， 包括：
通信模块， 用于与其它通信设备进行电路域通话；
生成模块， 用于在所述通信模块与所述其它通信设备进行电路域通话的 过程中， 生成电路域信令信号， 所述电路域信令信号包括建立分组域连接的 触发指示信息； 以及
消息发送模块， 用于向所述其它通信设备发送所述生成模块生成的所述 电路域信令信号。
8、 如权利要求 7所述的通信设备， 其特征在于， 还包括：
标识信息提供模块， 用于将用户发起分组域业务所用的应用逻辑的标识 信息提供给所述生成模块， 所述生成模块生成的电路域信令信号中还包括该 应用逻辑的标识信息；
第二接收模块， 用于接收所述其它通信设备发送的确认已收到所述电路 域信令信号的应答消息；
第一应用逻辑模块， 用于在所述第二接收模块接收到所述应答消息后， 向所述其他通信设备上对应的应用逻辑发送应用层信令消息。
9、 一种通信设备， 其特征在于， 包括：
接收模块， 用于在与其它通信设备进行电路域通话的过程中， 接收所述 其它通信设备发送的电路域信令信号， 所述电路域信令信号包括建立分组域 连接的触发指示信息；
触发模块， 用于根据接收到的所述触发指示信息， 触发本设备通过分组 网络与所述其他通信设备建立分组域连接。
10、 如权利要求 9所述的通信设备， 其特征在于， 还包括：
消息解析模块， 用于对所述接收模块接收到的电路域信令信号进行解析， 获得其中的建立分组域连接的触发指示信息和应用逻辑的标识信息， 所述应 用逻辑是所述其他通信设备的用户发起分组域业务所用的应用逻辑； 第二应用逻辑模块， 用于根据所述触发模块的通知， 并根据所述消息解 析模块解析获得的所述应用逻辑的标识信息， 触发所述应用逻辑通过建立的 分组域连接与所述其它通信设备上的该应用逻辑进行通信。
11、 如权利要求 10所述的通信设备， 其特征在于， 还包括：
应答消息发送模块， 用于向所述其他通信设备上的所述应用逻辑发送确 认已收到所述电路域信令信号的应答消息；
应用层信令消息接收模块， 用于接收所述其它通信设备发送的应用层信 令消息。
12、 如权利要求 9至 11任一项所述的通信设备， 其特征在于， 还包括： 确定模块， 用于根据所述电路域信令信号， 确定是否接受对应的分组域 连接建立请求；
发送模块， 用于在确定接受所述分组域连接建立请求时， 将接受请求的 指示信息通过电路域信令信号返回给所述其他通信设备。
13、 一种通信系统， 其特征在于， 包括第一通信设备和第二通信设备， 其中：
第一通信设备， 用于在与第二通信设备进行电路域通话的过程中， 向第 二通信设备发送电路域信令信号， 所述电路域信令信号包括建立分组域连接 的触发指示信息；
第二通信设备， 用于根据所述触发指示信息， 触发本设备通过分组网络 与第一通信设备建立分组域连接。
PCT/CN2008/001957 2007-11-30 2008-12-01 Method, device and system for triggering packet domain connection during circuit domain call Ceased WO2009074014A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1611084A (zh) * 2001-06-29 2005-04-27 诺基亚公司 电路交换通信和分组交换通信
CN1770913A (zh) * 2004-11-02 2006-05-10 北京三星通信技术研究有限公司 接收多媒体广播与组播业务的方法
WO2006059353A1 (en) * 2004-12-03 2006-06-08 Telecom Italia S.P.A. Enabling combinational services in a communications network

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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CN101394588A (zh) * 2007-09-21 2009-03-25 华为技术有限公司 一种实现分组域中会话业务的方法和系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1611084A (zh) * 2001-06-29 2005-04-27 诺基亚公司 电路交换通信和分组交换通信
CN1770913A (zh) * 2004-11-02 2006-05-10 北京三星通信技术研究有限公司 接收多媒体广播与组播业务的方法
WO2006059353A1 (en) * 2004-12-03 2006-06-08 Telecom Italia S.P.A. Enabling combinational services in a communications network

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