WO2009033423A1 - Procédé, central et dispositif pour transfert de conversation entre terminaux - Google Patents
Procédé, central et dispositif pour transfert de conversation entre terminaux Download PDFInfo
- Publication number
- WO2009033423A1 WO2009033423A1 PCT/CN2008/072320 CN2008072320W WO2009033423A1 WO 2009033423 A1 WO2009033423 A1 WO 2009033423A1 CN 2008072320 W CN2008072320 W CN 2008072320W WO 2009033423 A1 WO2009033423 A1 WO 2009033423A1
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- WIPO (PCT)
- Prior art keywords
- terminal
- session
- switching
- peer
- determining unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000011664 signaling Effects 0.000 claims abstract description 79
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000004891 communication Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- 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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/428—Arrangements for placing incoming calls on hold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Definitions
- the present invention relates to the field of communications, and in particular, to a session switching method between terminals, and a switch and apparatus using the session switching method.
- the technical solution for solving the terminal handover of the call is as follows: First, the current call is interrupted, that is, the communication between the first terminal and the counterpart terminal is interrupted, and communication is continued after the second terminal establishes communication with the counterpart terminal. For example, in the first example mentioned above, a user is talking in the office, but must attend the conference room at this moment, and the user must keep a conversation with the other party, then the user needs to use the conference room phone to continue the call. With the existing technology, the user will first interrupt the office call, then establish a new connection with the other party through the conference room phone, and then continue the call after the new connection is established.
- the main technical problem to be solved by the embodiments of the present invention is to provide a session switching method, a switch, and a device between terminals, so that when a user's session is switched between multiple terminals, the session is not interrupted.
- the current call of the user is not interrupted.
- an embodiment of the present invention provides a session switching method between terminals, including the following steps:
- An embodiment of the present invention further provides a switch, including:
- a switching unit configured to perform a session switching
- a first determining unit configured to determine, in a process of performing a session between the first terminal and the peer terminal, whether to receive handover signaling of the second terminal that is not in the session, and if yes, instructing the switching unit to The session between the terminal and the peer terminal is switched to a session between the second terminal and the peer terminal.
- An embodiment of the present invention further provides a switching apparatus, including:
- a switching unit configured to perform a session switching
- the first determining unit is configured to determine, during the session of the first terminal and the peer terminal, whether to receive the handover signaling of the second terminal that is not in the session, and if yes, instruct the switching unit to: The session between the peer terminals is switched to a session between the second terminal and the peer terminal.
- the session is switched between the second terminal and the peer terminal, so that the user When a session is switched between multiple terminals, it is not necessary to interrupt the user's current call.
- FIG. 1 is a flow chart of a specific embodiment of a session switching method between terminals according to the present invention
- FIG. 2 is a schematic diagram of a first terminal and a second terminal belonging to the same switch in a specific implementation manner of a session switching method between terminals according to the present invention
- 3 is a schematic diagram of a first terminal and a second terminal belonging to different switches in a specific implementation manner of a session switching method between terminals according to the present invention
- FIG. 4 is a flow chart showing a specific implementation manner of a session switching method between terminals according to the present invention.
- FIG. 5 is a structural diagram of a specific embodiment of a switch according to the present invention.
- FIG. 6 is a block diagram of a specific embodiment of a switching device in accordance with the present invention.
- the switch receives the signaling sent by the first terminal.
- the switch determines whether the received signaling sent by the first terminal is an on-hook signaling. If the signaling sent by the first terminal is on-hook signaling, the process proceeds to step 103, otherwise, the process returns to step 101.
- the switch temporarily keeps information about the current session and starts a timer. That is to say, the session is not removed temporarily, all or part of the information of the session is retained, and then the timer is started.
- the switch Before the timer expires, the switch receives the signaling sent by the second terminal, and determines whether the signaling received from the second terminal is the handover signaling. If the switch receives the handover signaling from the second terminal before the timer expires, the process proceeds to step 105. If the switch does not receive the handover signaling from the second terminal when the timer expires, the process proceeds to step 106.
- the handover signaling used may be off-hook signaling, and the user does not need to dial other access codes to automatically switch, making the user more convenient to use; for a terminal that does not need to go off-hook (such as a mobile phone), the handover signaling can be a short access code signaling, in the seamless implementation At the same time, it will not cause any inconvenience to the user.
- the switch switches the session between the first terminal and the opposite terminal to between the second terminal and the opposite terminal.
- the first terminal and the second terminal may belong to the same switch or may belong to different switches.
- the switch can change the information previously saved for the session, and change the information of the first terminal to the information of the second terminal, such as changing the route. Information, destination address, etc.
- the first terminal and the second terminal belong to different switches, for example, as shown in FIG.
- the switch 1 to which the first terminal belongs may send the saved session information to the switch 2 to which the second terminal belongs, and The switch 2 is notified that the session is switched between the second terminal and the opposite terminal, and the switch 2 controls the session between the second terminal and the opposite terminal.
- the user can continue the call through the second terminal, so that when the user's session is switched between multiple terminals, the user's current session does not need to be interrupted, thereby providing a better conference experience for the user.
- the timer expires, and the switch to which the first terminal belongs does not receive the handover signaling sent by the second terminal, and directly disconnects the session between the first terminal and the opposite terminal.
- the present embodiment provides a seamless call switching method, wherein the meaning of "seamless" means: session information such as signaling flow, media stream, charging, authentication, etc. are not in the process of call switching. Loss, that is, to maintain all session information; or as needed, only to ensure that some of the information will not be lost, that is, to maintain part of the session information.
- the first terminal and the second terminal that perform the handover respectively access the associated switch, and communicate with another terminal through the switching network, where the first terminal and the second terminal may belong to the same Switches can also belong to different switches.
- the type of the user terminal is not limited, and may be a wireless terminal or a wired terminal, as long as the switch supports, such as a mobile phone, a fixed telephone, a soft phone (such as a personal digital assistant), a notebook, a personal computer (PC), etc.
- the switching network of the present embodiment may be a public switched telephone network (Public Internet Switching Network (PSTN)), a softswitch network, and a global mobile communication system (Globa l) Sys tem for Mobi le communication, referred to as "GSM,”, “The Third Genera”("3G”) or Voice over IP (“VoIP”)-based communication
- PSTN Public Internet Switching Network
- GSM global mobile communication system
- 3G Third Genera
- VoIP Voice over IP
- An embodiment of the session switching method between the terminals of the present invention is substantially the same as the embodiment shown in FIG. 1, except that in the embodiment shown in FIG. 1, if the switch receives the In the case of the handover signaling of the second terminal, the session switching is performed immediately; in the embodiment, the associated terminal is set in advance for the first terminal, and if the switch receives the handover signaling from the second terminal during the session hold, Further determining whether the second terminal is associated with the first terminal, if associated, performing session switching.
- the terminal associated with the first terminal may be one or more, and the information of the associated terminal may exist in the switch to which the first terminal belongs, or may exist in other storage devices, and the switch belongs to the first terminal.
- the device obtains information about the associated terminal.
- the associated terminal may be the second terminal and the third terminal, as shown in Table 1:
- An embodiment of the session switching method between the terminals of the present invention differs from the embodiment shown in FIG. 1 in that, in the embodiment shown in FIG. 1, after receiving the on-hook signaling from the first terminal, the switch In the present embodiment, after receiving the on-hook signaling from the first terminal, the switch first determines whether the first terminal subscribes to the service of switching the session between the terminals, if the first terminal subscribes to the terminal. When switching the service of the session, the session is held and the timing is started. If the first terminal does not subscribe to the service of switching the session between the terminals, the session is directly removed. Determining whether the first terminal subscribes to the service of switching the session between the terminals, so that the user can independently select whether or not to perform the session switching, is more humanized, and can better protect the interests of the operator.
- An embodiment of the session switching method between the terminals of the present invention is substantially the same as the embodiment shown in FIG. 1 , and the difference is that, in the embodiment shown in FIG. 1 , after the first terminal hangs up, the switching is performed; In the present embodiment, when the first terminal is not on-hook, that is, when the first terminal is still in a call state, session switching is performed.
- the specific process is shown in Figure 4.
- the switch receives the signaling sent by the second terminal during the process of the first terminal and the peer terminal. It should be noted that, if the first terminal and the second terminal belong to the same switch, the switch can directly receive the signaling sent by the second terminal; if the first terminal and the second terminal belong to different switches, the switch can pass The switch to which the second terminal belongs receives the signaling sent by the second terminal.
- the switch determines whether the signaling received from the second terminal is handover signaling. If the signaling of the second terminal is the handover signaling, the process proceeds to step 403; otherwise, the process proceeds to step 406.
- the switch determines whether the first terminal subscribes to the service of switching the session between the terminals. If the first terminal subscribes to the service for switching the session between the terminals, then step 404 is entered, otherwise step 406 is entered.
- the switch determines whether the second terminal is associated with the first terminal.
- the information about the associated terminal stored by the switch to which the first terminal belongs is used to determine whether the second terminal is associated with the first terminal. If so, the process proceeds to step 405; otherwise, the process proceeds to step 406.
- the switch switches the session between the first terminal and the opposite terminal to the second terminal and the opposite terminal, so that the second terminal continues the current call.
- the switch maintains a session between the first terminal and the peer terminal.
- the user uses the first terminal to perform the current call, and if the hang-up is not performed, the second terminal directly initiates the handover signaling, and then switches the current call to the second terminal.
- This embodiment is particularly applicable to the case where the first terminal is a mobile phone, because when the session is successfully switched to the second After the terminal, the system will disconnect the session between the first terminal and the peer terminal. If the first terminal is a mobile phone, it can enter the standby state without hanging up. If the first terminal is a fixed phone, it needs to hang up, otherwise it will always hear. busy tone.
- the corresponding step body is not limited to the switch, but may be completed by another switching device independent of the switch, and the switching device will be mentioned in the following embodiments. To.
- FIG. 5 A structural diagram of a specific implementation of a switch of the present invention is shown in FIG. 5, and includes a switching unit 51 for performing session switching.
- the first determining unit 52 is configured to determine a session process between the first terminal and the peer terminal. Whether the handover signaling of the second terminal that is not in the session is received, and if yes, instructing the switching unit to switch the session between the first terminal and the opposite terminal to the second terminal and the opposite terminal The conversation between. This allows the user to switch their session between multiple terminals without interrupting the user's current session.
- the handover signaling may be off-hook signaling or access code signaling.
- the switch may further include a session holding unit 53 for maintaining the session for a predetermined period of time.
- the second determining unit 54 is configured to determine whether the indication from the first terminal is received during the process of the session of the first terminal. The signaling, if received, instructs the session holding unit to maintain the session of the first terminal for a predetermined period of time; the first determining unit 52 is further configured to determine whether the handover signaling of the second terminal is received during the session holding period. If yes, the switching unit is instructed to switch the session between the first terminal and the peer terminal to the session between the second terminal and the peer terminal.
- the service control unit 57 may include a first determining unit and a second determining unit, where the service control unit 57 is mainly used to determine whether to receive the signaling indicating the on-hook to determine whether to maintain the session during the first terminal session, and determine Whether the handover signaling of the second terminal is received in the case of maintaining the session to decide whether to perform handover of the session.
- the switch may further include a communication basic unit 58 for receiving communication signaling from the user side and the network side, completing the connection and disconnection of the call, which is a basic function of the switch.
- the communication basic unit sends the received signaling information (such as handover signaling, on-hook signaling, etc.) to the service control unit for processing.
- the switch may also include a session management unit 59 for completing the creation, teardown, and modification of the session and synchronizing the processing results of the session to the session data unit.
- the above-described switching unit and session holding unit may be included in the session management unit.
- the switch may also include a session data unit 510 for storing all current sessions in the system, which are accessible by the service control unit and the session management unit.
- Each session includes the following information: user information, terminal information, current communication status, signaling information, media information, charging information, and authentication information of the two parties.
- the switch can also include a service data unit 511 for storing service information of the terminal, i.e., storing one or more other terminal information associated with the terminal.
- the session data unit and the service data unit may also be independent of the switch, such as in a separate storage unit, and only need to be able to perform data interaction with the switch.
- the switch may further include a third determining unit 55, configured to determine, according to the terminal information stored by the service data unit, whether the second terminal is a terminal associated with the first terminal; the switching unit 51 determines to receive at the first determining unit 52.
- the second terminal determines that the second terminal is the terminal associated with the first terminal, the session between the first terminal and the peer terminal is switched to the second terminal and the pair. The session of the terminal.
- the switch may further include a fourth determining unit 56, configured to determine whether the first terminal subscribes to the service for switching the session between the terminals; the switching unit 51 determines, at the first determining unit 52, the handover signaling of the second terminal, and the The determining unit 56 determines that the first terminal subscribes to the service of the switching between the terminals, and switches the session between the first terminal and the opposite terminal to the session between the second terminal and the opposite terminal.
- a fourth determining unit 56 configured to determine whether the first terminal subscribes to the service for switching the session between the terminals; the switching unit 51 determines, at the first determining unit 52, the handover signaling of the second terminal, and the The determining unit 56 determines that the first terminal subscribes to the service of the switching between the terminals, and switches the session between the first terminal and the opposite terminal to the session between the second terminal and the opposite terminal.
- each unit in the embodiment is a logical unit. In actual applications, it may exist in different physical modules, or may exist in the same physical module.
- FIG. 6 is a structural diagram of a specific implementation of a switching apparatus according to the present invention, including: a switching unit 61, configured to perform a session switching; a first determining unit 62, configured to determine the first terminal and the opposite terminal Whether the handover signaling of the second terminal not in the session is received during the session, if Upon receiving, the switching unit instructs the switching unit to switch the session between the first terminal and the opposite terminal to a session between the second terminal and the opposite terminal.
- the handover signaling may be off-hook signaling or access code signaling.
- the switching device may further include: a session holding unit 63, configured to hold the session for a predetermined duration; and a second determining unit 64, configured to determine, during the process of the session of the first terminal, whether to receive the first terminal The signal indicating the on-hook signaling, if received, instructs the session holding unit to maintain the session of the first terminal for a predetermined period of time; the first determining unit 62 is further configured to determine whether to receive the handover signaling of the second terminal during the session holding period. If received, the switch unit 61 is instructed to switch the session between the first terminal and the peer terminal to the session between the second terminal and the peer terminal.
- the switching device may further include: a third determining unit 65, configured to determine whether the second terminal is a terminal associated with the first terminal; the switching unit determines, at the first determining unit 62, that the handover signaling of the second terminal is received, and the When the third determining unit 65 determines that the second terminal is the terminal associated with the first terminal, the session between the first terminal and the opposite terminal is switched to the session between the second terminal and the opposite terminal.
- a third determining unit 65 configured to determine whether the second terminal is a terminal associated with the first terminal
- the switching unit determines, at the first determining unit 62, that the handover signaling of the second terminal is received, and the When the third determining unit 65 determines that the second terminal is the terminal associated with the first terminal, the session between the first terminal and the opposite terminal is switched to the session between the second terminal and the opposite terminal.
- the switching device may further include: a fourth determining unit 66, configured to determine whether the first terminal subscribes to the service for switching the session between the terminals; the switching unit 61 determines, at the first determining unit, that the handover signaling of the second terminal is received, and The fourth determining unit 66 determines that the first terminal subscribes to the service of the switching between the terminals, and switches the session between the first terminal and the opposite terminal to the session between the second terminal and the opposite terminal.
- a fourth determining unit 66 configured to determine whether the first terminal subscribes to the service for switching the session between the terminals
- the switching unit 61 determines, at the first determining unit, that the handover signaling of the second terminal is received
- the fourth determining unit 66 determines that the first terminal subscribes to the service of the switching between the terminals, and switches the session between the first terminal and the opposite terminal to the session between the second terminal and the opposite terminal.
- each unit in the embodiment is a logical unit. In actual applications, it may exist in different physical modules, or may exist in the same physical module.
- the first terminal is The session between the peer terminals is switched between the second terminal and the peer terminal, so that when the user's session is switched between the multiple terminals, the current call of the user does not need to be interrupted.
- the session is maintained for a predetermined duration; during the hold session, if the second terminal is received Switching signaling, the session between the first terminal and the peer terminal is switched to the Between the second terminal and the opposite terminal.
- the terminal that does not have the automatic on-hook function (such as a fixed line) will not be in a call state after the session is switched.
- the associated terminal is set in advance for the first terminal, and when the handover information of the second terminal is received, it is determined whether the second terminal is associated with the first terminal, and if so, the session is switched to the second terminal.
- the first terminal subscribes to the service of switching the session between the terminals, and if yes, the session is switched to the second terminal, so that the user can independently select whether the session switching needs to be performed, is more user-friendly, and can be better. Guarantee the interests of operators.
- the handover signaling used may be off-hook signaling, and the user does not need to dial other access codes to automatically switch, making the user more convenient to use; for a terminal that does not need to go off-hook (for example, the mobile phone), the handover signaling may be a short access code signaling, and the seamless handover may not cause inconvenience to the user.
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Description
终端之间的会话切换方法、 交换机及装置 技术领域
本发明涉及通信领域， 特别涉及终端之间的会话切换方法， 以及釆用该 会话切换方法的交换机及装置。
背景技术
在现实中， 都会遇到这样的场景， 当某用户 A使用第一终端与另一用户 B 正在通话时， 但由于某种原因， 用户 A想使用第二终端与用户 B继续进行通 信， 则需要把第一终端切换到第二终端进行通信。 比如： 1 )某用户正在办公 室通话， 但此刻必须到会议室开会， 而此用户又必须与对方继续通话， 则该 用户需要使用会议室电话继续通话， 也就是说该用户需要把当前通话从办公 室电话切换到会议室电话； 2 )用户当前的办公室电话不适宜透露一些保密信 息， 如公司商业机密、 信用卡密码等， 需要用手机与对方继续通话， 则需要 把办公室电话切换到手机， 再进行通话； 3 ) 当终端的通信能力不足时， 需要 切换到某一功能丰富的终端继续通话。
目前， 解决通话的终端切换， 所釆用的技术方案如下： 首先中断当前通 话， 即中断第一终端与对方终端的通信， 在建立第二终端与对方终端通信之 后再继续通信。 比如上面提到的第一个例子， 某用户正在办公室通话， 但此 刻必须到会议室开会， 而此用户又必须与对方保持通话， 则该用户需要使用 会议室电话继续通话。 釆用现有技术， 那么用户将先中断办公室通话， 然后， 通过会议室电话与对方建立新的连接， 在新的连接建立完成之后再继续通话。
然而， 本发明的发明人发现， 釆用现有技术方案， 需要中断当前通话， 将给用户带来不便。
发明内容
本发明实施方式要解决的主要技术问题是提供一种终端之间的会话切换 方法、 交换机及装置， 使得用户的会话在多个终端之间切换时， 不必中断用
户当前的通话。
为解决上述技术问题， 本发明的实施方式提供了一种终端之间的会话切 换方法， 包括以下步骤：
在第一终端与对端终端的会话过程中， 收到不在该会话中的第二终端的 切换信令；
将该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端 之间的会话。
本发明的实施方式还提供了一种交换机， 包括：
切换单元， 用于进行会话的切换；
第一判断单元， 用于判断在第一终端与对端终端的会话进行的过程中， 是否收到不在该会话中的第二终端的切换信令， 如果收到则指示切换单元将 该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的 会话。
本发明的实施方式还提供了一种切换装置， 包括：
切换单元， 用于进行会话的切换；
第一判断单元， 用于判断在第一终端与对端终端的会话过程中， 是否收 到不在该会话中的第二终端的切换信令， 如果收到则指示切换单元将该第一 终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会话。
在第一终端与对端终端的会话过程中， 如果收到原先不在该会话中的第 二终端的切换信令， 则将该会话切换到该第二终端与对端终端之间， 使得用 户的会话在多个终端之间切换时， 不必中断用户当前的通话。
附图说明
图 1 是根据本发明的终端之间的会话切换方法的一种具体实施方式的流 程图；
图 2 是根据本发明的终端之间的会话切换方法的一种具体实施方式中第 一终端与第二终端归属同一交换机的示意图；
图 3是根据本发明的终端之间的会话切换方法的一种具体实施方式中第 一终端与第二终端归属不同交换机的示意图；
图 4 是根据本发明的终端之间会话切换方法的一种具体实施方式的流程 图；
图 5是根据本发明的交换机的具体实施方式的结构图；
图 6是根据本发明的切换装置的具体实施方式的结构图。
具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发 明的实施方式作进一步地详细描述。
在本发明一种终端之间的会话切换方法的一种具体实施方式中， 在第一 终端与对端终端的会话正在进行时， 如果收到原先不在该会话中的第二终端 的切换信令， 则将该会话切换到该第二终端与该对端终端之间。 具体流程如 图 1所示。
101、 在第一终端与对端终端会话的过程中， 交换机接收第一终端发送的 信令。
102、 交换机判断收到的第一终端发送的信令是否为挂机信令。 如果第一 终端发送的信令为挂机信令， 则进入步骤 103 , 否则返回步骤 1 01。
103、 交换机暂时保持当前会话的信息， 并启动定时器。 也就是说， 暂时 不拆除会话， 将会话的所有信息或部分信息保留下来， 然后， 启动定时器。
104、 在定时器超时前， 交换机接收第二终端所发的信令， 并判断收到来 自第二终端的信令是否为切换信令。 如果在定时器超时前， 交换机收到来自 第二终端的切换信令， 则进入步骤 105 , 如果在定时器超时时， 交换机未收到 来自第二终端的切换信令， 则进入步骤 106。
对于需要摘机的终端（如固定电话 ),所使用的切换信令可以是摘机信令， 无需用户拨打其它接入码， 自动切换， 使得用户使用起来更方便； 对于无需 摘机的终端（如手机）， 该切换信令可以是简短的接入码信令， 在实现无缝切
换的同时， 同样不会为用户的使用带来不便。
105、 交换机将第一终端与对端终端之间的会话切换到第二终端与对端终 端之间。 第一终端和第二终端可以属于同一个交换机， 也可以属于不同交换 机。 对于属于同一个交换机的情况， 举例而言， 如图 2 所示， 该交换机可以 将之前为该会话保存的信息进行更改， 将其中第一终端的信息更改为第二终 端的信息， 如更改路由信息、 目的地址等。 对于第一终端和第二终端属于不 同交换机的情况， 举例而言， 如图 3所示， 该第一终端所属的交换机 1 可以 将所保存的会话信息发送给第二终端所属的交换机 2 ,并通知交换机 2该会话 切换到第二终端与对端终端之间， 由交换机 2 来控制第二终端与对端终端的 会话。
在完成会话切换之后， 用户可以通过第二终端继续通话， 使得用户的会 话在多个终端之间切换时， 不必中断用户当前的会话， 为用户带来更好的会 话体验。
106、 定时器超时， 第一终端所属的交换机未收到第二终端发送的切换信 令， 直接拆除第一终端与对端终端之间的会话。
可见， 本实施方式提供了一种无缝的通话切换方法， 其中 "无缝" 的含 义是指： 信令流、 媒体流、 计费、 鉴权等会话信息在通话的切换过程中均不 会造成丟失， 即保持所有的会话信息； 或者根据需要， 仅保证其中部分信息 不会丟失， 即保持部分会话信息。
需要说明的是， 在本实施方式中， 进行切换的第一终端、 第二终端分别 接入所属交换机， 通过交换网络， 与另一终端进行通信， 其中， 第一终端和 第二终端可以归属同一交换机， 也可以归属不同交换机。 另外， 用户终端的 类型不受限制， 可以是无线终端、 也可以是有线终端， 只要交换机支持即可， 比如手机、 固定电话、 软手机（如个人数字助理）、 笔记本、 个人电脑 （PC ) 等； 本实施方式的交换网络可以是公共交换电话网络 （ Publ ic Swi tched Te lephone Ne twork , 简称 "PSTN" )、软交换网络、全球移动通信系统（ Globa l
Sys tem for Mobi le communica t ion,简称" GSM，，)、第三代移动通信 ( The Thi rd Genera t ion, 简称 "3G" )或基于分组语音 ( Voice over IP, 简称 "VoIP" ) 的通信网络。
本发明终端之间的会话切换方法的一种实施方式与图 1 所示的实施方式 大致相同， 其区别在于， 在图 1 所示的实施方式中， 如果在会话保持期间， 交换机收到来自第二终端的切换信令， 则立即执行会话切换； 而在本实施方 式中， 要预先为第一终端设置相关联的终端， 在会话保持期间交换机如果收 到来自第二终端的切换信令， 则进一步判断该第二终端是否与第一终端相关 联， 如果相关联， 则执行会话切换。
其中， 第一终端相关联的终端可以是一个或多个， 相关联终端的信息可 以存在第一终端所属的交换机中， 也可以存在其他存储设备中， 并由第一终 端所属的交换机从该存储设备中获取相关联终端的信息。 比如， 对于第一终 端， 其相关联的终端可以是第二终端与第三终端， 如表 1所示：
表 1
本发明终端之间的会话切换方法的一种实施方式与图 1 所示的实施方式 的区别在于， 在图 1 所示的实施方式中， 交换机在收到来自第一终端的挂机 信令后， 直接进行会话保持； 而在本实施方式中， 交换机在收到来自第一终 端的挂机信令后， 首先判断第一终端是否签约了在终端间切换会话的业务， 如果第一终端签约了在终端间切换会话的业务， 则执行会话保持并启动定时
器， 如果第一终端没有签约在终端间切换会话的业务， 则直接拆除会话。 对 第一终端是否签约了在终端间切换会话的业务进行判定， 可以使用户能够自 主选择是否需要进行会话切换， 显得更人性化， 同时能够更好地保障运营商 的利益。
本发明终端之间的会话切换方法的一种实施方式与图 1 所示的实施方式 大致相同， 其区别在于， 在图 1所示的实施方式中， 是在第一终端挂机之后， 进行切换； 而在本实施方式中， 是在第一终端没有挂机的情景下， 即第一终 端仍处于通话状态时， 进行会话切换。 具体流程如图 4所示。
401、 交换机在第一终端与对端终端会话的过程中， 接收第二终端的所发 的信令。 需要说明的是， 如果第一终端与第二终端属于同一个交换机， 则该 交换机可以直接接收第二终端所发的信令； 如果第一终端与第二终端属于不 同交换机， 则该交换机可以通过该第二终端所属的交换机接收第二终端发送 的信令。
402、 交换机判断收到来自第二终端的信令是否为切换信令。 如果收到第 二终端的信令为切换信令， 则进入步骤 403 , 否则进入步骤 406。
403、 交换机判断第一终端是否签约了在终端间切换会话的业务。 如果第 一终端签约了在终端间切换会话的业务，则进入步骤 404 ,否则进入步骤 406。
404、 交换机判断该第二终端是否与第一终端相关联。 通过第一终端所属 交换机存储的相关联终端的信息， 来判断该第二终端是否与第一终端相关联， 如果相关联， 则进入步骤 405 , 否则进入步骤 406。
405、 交换机将第一终端与对端终端之间的会话切换到第二终端与该对端 终端之间， 从而使第二终端继续当前的通话。
406、 交换机维持第一终端与对端终端之间的会话。
在本实施方式中， 用户使用第一终端进行当前通话， 并在不进行挂机的 情况下， 直接由第二终端发起切换信令， 之后， 把当前通话切换到第二终端。 本实施方式特别适用于第一终端为手机的情况， 因为当会话成功切换到第二
终端之后， 系统会拆除第一终端与对端终端之间的会话， 如果第一终端是手 机则无需挂机操作就可以进入待机状态， 如果第一终端是固定话机则需挂机， 否则会一直听到忙音。
需要说明的是， 在上述方法实施例中， 相应步骤主体并不仅仅局限于交 换机， 也可以是由另一个独立于交换机的切换装置完成相应步骤， 该切换装 置将会在下面的实施例中提到。
本发明一种交换机的具体实施方式的结构图如图 5 所示， 包括切换单元 51 , 用于进行会话的切换； 第一判断单元 52 , 用于判断在第一终端与对端终 端的会话过程中， 是否收到不在该会话中的第二终端的切换信令， 如果收到 则指示切换单元将该第一终端与该对端终端之间的会话切换为该第二终端与 该对端终端之间的会话。 使得用户在多个终端之间切换其会话时， 不必中断 用户当前的会话。 该切换信令可以是摘机信令或接入码信令。
该交换机还可以包括会话保持单元 53 , 用于在预定时长内保持会话； 第 二判断单元 54 , 用于判断在第一终端的会话进行的过程中， 是否收到来自该 第一终端的表示挂机的信令， 如果收到则指示会话保持单元在预定时长内保 持该第一终端的会话； 该第一判断单元 52 , 还用于判断在会话保持期间， 是 否收到第二终端的切换信令， 如果收到则指示切换单元将该第一终端与该对 端终端的会话切换为该第二终端与该对端终端的会话。 其中， 业务控制单元 57可以包括第一判断单元与第二判断单元，该业务控制单元 57主要用来在第 一终端会话过程中判断是否接收到表示挂机的信令以决定是否保持会话， 以 及判断保持会话的情况下是否接收到第二终端的切换信令， 以决定是否进行 会话的切换。
该交换机还可以包括通信基本单元 58 , 用于接收来自用户侧和网络侧的 通信信令， 完成通话的接续、 拆线， 它是交换机的基本功能。 在本实施方式 中， 通信基本单元将接收到的信令信息 （如切换信令、 挂机信令等）发送给 业务控制单元处理。
该交换机还可以包括会话管理单元 59 , 用于完成会话的创建、 拆除和更 改， 并将会话的处理结果同步到会话数据单元。 上述的切换单元和会话保持 单元可以包含在该会话管理单元中。
该交换机还可以包括会话数据单元 510 , 用于保存系统中当前的所有会 话， 可被业务控制单元和会话管理单元访问。 其中， 每一个会话中包含如下 信息： 通信双方的用户信息、 终端信息、 当前的通信状态、 信令信息、 媒体 信息、 计费信息以及鉴权信息等。
该交换机还可以包括业务数据单元 511 , 用于存储终端的业务信息， 即存 储和该终端相关联的一个或多个其它终端信息。 其中， 会话数据单元和业务 数据单元也可以独立于交换机之外， 如存在于独立的存储单元中， 只需与交 换机之间能够进行数据交互即可。
该交换机还可以包括第三判断单元 55 , 用于根据业务数据单元所存储的 终端信息， 来判断第二终端是否为与第一终端关联的终端； 该切换单元 51在 第一判断单元 52确定收到第二终端的切换信令， 且第三判断单元 55确定第 二终端是与第一终端关联的终端时， 将该第一终端与该对端终端的会话切换 为该第二终端与该对端终端的会话。
该交换机还可以包括第四判断单元 56 , 用于判断第一终端是否签约了在 终端间切换会话的业务； 切换单元 51在第一判断单元 52确定收到第二终端 的切换信令， 且第四判断单元 56确定第一终端签约了在终端间切换会话的业 务时， 将第一终端与该对端终端的会话切换为该第二终端与该对端终端的会 话。
需要说明的是， 本实施方式中的各单元均为逻辑单元， 在实际应用中， 可以存在于不同的物理模块中， 也可以存在于同一个物理模块中。
本发明一种切换装置的具体实施方式的结构图如图 6 所示， 包括： 切换 单元 61 , 用于进行会话的切换； 第一判断单元 62 , 用于判断在第一终端与对 端终端的会话过程中， 是否收到不在该会话中的第二终端的切换信令， 如果
收到则指示切换单元将该第一终端与该对端终端之间的会话切换为该第二终 端与该对端终端之间的会话。 该切换信令可以是摘机信令或接入码信令。
该切换装置还可以包括： 会话保持单元 63 , 用于在预定时长内保持会话； 第二判断单元 64 , 用于在第一终端的会话进行的过程中， 判断是否收到来自 该第一终端的表示挂机的信令， 如果收到则指示会话保持单元在预定时长内 保持该第一终端的会话； 第一判断单元 62还用于在会话保持期间， 判断是否 收到第二终端的切换信令， 如果收到则指示切换单 61元将该第一终端与该对 端终端的会话切换为该第二终端与该对端终端的会话。
该切换装置还可以包括： 第三判断单元 65 , 用于判断第二终端是否为与 第一终端关联的终端； 切换单元在第一判断单元 62确定收到第二终端的切换 信令， 且第三判断单元 65确定第二终端是与第一终端关联的终端时， 将该第 一终端与该对端终端的会话切换为该第二终端与该对端终端的会话。
该切换装置还可以包括： 第四判断单元 66 , 用于判断第一终端是否签约 了在终端间切换会话的业务； 切换单元 61在第一判断单元确定收到第二终端 的切换信令， 且第四判断单元 66确定第一终端签约了在终端间切换会话的业 务时， 将该第一终端与该对端终端的会话切换为该第二终端与该对端终端的 会话。
需要说明的是， 本实施方式中的各单元均为逻辑单元， 在实际应用中， 可以存在于不同的物理模块中， 也可以存在于同一个物理模块中。
综上所述， 在本发明的实施方式中， 在第一终端与对端终端的会话过程 中， 如果收到原先不在该会话中的第二终端的切换信令， 则将该第一终端与 该对端终端之间的会话切换到该第二终端与该对端终端之间， 使得用户的会 话在多个终端之间切换时， 不必中断用户当前的通话。
在该第一终端的会话进行的过程中， 如果收到来自该第一终端的表示挂 机的信令， 则在预定时长内保持该会话； 在该保持会话期间， 如果收到来自 该第二终端的切换信令， 则将该第一终端与该对端终端之间的会话切换到该
第二终端与该对端终端之间。 通过先挂机后切换的方式， 使得没有自动挂机 功能的终端 （如固定电话） 不会在会话切换后仍处于通话状态。
预先为第一终端设置相关联的终端， 在收到第二终端的切换信息时， 判 断该第二终端是否与该第一终端相关联， 如果是则将该会话切换到该第二终 端。 通过预先设置允许切换的终端， 可以提高会话切换的安全性。
先判断第一终端是否签约了在终端间切换会话的业务， 如果是则将该会 话切换到该第二终端， 从而使得用户能够自主选择是否需要进行会话切换， 更人性化， 同时能够更好地保障运营商的利益。
对于需要摘机的终端（如固定电话 ),所使用的切换信令可以是摘机信令， 无需用户拨打其它接入码， 自动切换， 使得用户使用起来更方便； 对于无需 摘机的终端（如手机）， 该切换信令可以是简短的接入码信令， 在实现无缝切 换的同时， 同样不会为用户的使用带来不便。
虽然通过参照本发明的某些优选实施方式， 已经对本发明进行了图示和 描述， 但本领域的普通技术人员应该明白， 可以在形式上和细节上对其作各 种改变， 而不偏离本发明的精神和范围。
Claims
1. 一种终端之间的会话切换方法， 其特征在于， 包括以下步骤： 在第一终端与对端终端的会话过程中， 收到不在该会话中的第二终端的切 换信令；
将该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之 间的会话。
2. 根据权利要求 1所述的终端之间的会话切换方法， 其特征在于， 所述将 该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会 话的步骤之前， 还包括以下步骤：
在所述第一终端与对端终端的会话进行过程中， 接收来自该第一终端的表 示挂机的信令；
在收到所述表示挂机的信令后的预定时长内保持该会话；
在保持该会话的期间内， 接收来自所述第二终端的切换信令。
3. 根据权利要求 1所述的终端之间的会话切换方法， 其特征在于， 所述将 该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会 话的步骤具体为：
确定所述第二终端为与所述第一终端关联的终端后， 将该第一终端与该对 端终端之间的会话切换为该第二终端与该对端终端之间的会话。
4. 根据权利要求 1所述的终端之间的会话切换方法， 其特征在于， 所述将 该第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会 话的步骤具体为：
确定所述第一终端签约了在终端间切换会话的业务后， 将该第一终端与该 对端终端之间的会话切换为该第二终端与该对端终端之间的会话。
5. 一种交换机， 其特征在于， 包括：
切换单元（51 ), 用于进行会话的切换；
第一判断单元（52 ), 用于判断在第一终端与对端终端的会话过程中， 是否
收到不在该会话中的第二终端的切换信令， 如果收到则指示所述切换单元将该 第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会 话。
6. 根据权利要求 5所述的交换机， 其特征在于， 还包括：
会话保持单元（53 ), 用于在预定时长内保持会话；
第二判断单元（54 ), 用于判断在所述第一终端的会话进行的过程中， 判断 是否收到来自该第一终端的表示挂机的信令， 如果收到则指示所述会话保持单 元在预定时长内保持该第一终端的会话；
所述第一判断单元（52 )还用于判断在所述会话保持期间， 判断是否收到 所述第二终端的切换信令， 如果收到则指示所述切换单元将该第一终端与该对 端终端的会话切换为该第二终端与该对端终端的会话。
7. 根据权利要求 5所述的交换机， 其特征在于， 还包括：
第三判断单元（55 ), 用于判断所述第二终端是否为与所述第一终端关联的 终端；
所述切换单元（51 )在所述第一判断单元（52 )确定收到所述第二终端的 切换信令， 且所述第三判断单元（55 )确定所述第二终端是与所述第一终端关 联的终端时， 将该第一终端与该对端终端的会话切换为该第二终端与该对端终 端的会话。
8. 根据权利要求 5所述的交换机， 其特征在于， 还包括：
第四判断单元（56 ), 用于判断所述第一终端是否签约了在终端间切换会话 的业务；
所述切换单元（51 )在所述第一判断单元（52 )确定收到所述第二终端的 切换信令， 且所述第四判断单元（56 )确定所述第一终端签约了所述在终端间 切换会话的业务时， 将该第一终端与该对端终端的会话切换为该第二终端与该 对端终端的会话。
9. 一种切换装置， 其特征在于， 包括：
切换单元（61 ), 用于进行会话的切换；
第一判断单元（62 ), 用于判断在第一终端与对端终端的会话过程中， 是否 收到不在该会话中的第二终端的切换信令， 如果收到则指示所述切换单元将该 第一终端与该对端终端之间的会话切换为该第二终端与该对端终端之间的会 话。
10. 根据权利要求 9所述的切换装置， 其特征在于， 还包括：
会话保持单元（63 ), 用于在预定时长内保持会话；
第二判断单元（64 ), 用于在所述第一终端的会话进行的过程中， 判断是否 收到来自该第一终端的表示挂机的信令， 如果收到则指示所述会话保持单元在 预定时长内保持该第一终端的会话；
所述第一判断单元（62 )还用于在所述会话保持期间， 判断是否收到所述 第二终端的切换信令， 如果收到则指示所述切换单元（61 )将该第一终端与该 对端终端的会话切换为该第二终端与该对端终端的会话。
11. 根据权利要求 9所述的切换装置， 其特征在于， 还包括：
第三判断单元（65 ), 用于判断所述第二终端是否为与所述第一终端关联的 终端；
所述切换单元（61 )在所述第一判断单元（62 )确定收到所述第二终端的 切换信令， 且所述第三判断单元（65 )确定所述第二终端是与所述第一终端关 联的终端时， 将该第一终端与该对端终端的会话切换为该第二终端与该对端终 端的会话。
12. 根据权利要求 9所述的切换装置， 其特征在于， 还包括：
第四判断单元（66 ), 用于判断所述第一终端是否签约了在终端间切换会话 的业务；
所述切换单元（61 )在所述第一判断单元（62 )确定收到所述第二终端的 切换信令， 且所述第四判断单元（66 )确定所述第一终端签约了所述在终端间 切换会话的业务时， 将该第一终端与该对端终端的会话切换为该第二终端与该
对端终端的会话,
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| BRPI0816671 BRPI0816671A2 (pt) | 2007-09-11 | 2008-09-10 | Método, comutador e aparelho para comutar uma sessão entre terminais. |
| EP08800832A EP2175606A1 (en) | 2007-09-11 | 2008-09-10 | A method, an exchange and a device for conversation handover between the terminals |
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| CN200710076952.1 | 2007-09-11 | ||
| CNA2007100769521A CN101123651A (zh) | 2007-09-11 | 2007-09-11 | 终端之间的会话切换方法、交换机及装置 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2008/072320 WO2009033423A1 (fr) | 2007-09-11 | 2008-09-10 | Procédé, central et dispositif pour transfert de conversation entre terminaux |
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| Country | Link |
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| EP (1) | EP2175606A1 (zh) |
| CN (1) | CN101123651A (zh) |
| BR (1) | BRPI0816671A2 (zh) |
| WO (1) | WO2009033423A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101123651A (zh) * | 2007-09-11 | 2008-02-13 | 华为技术有限公司 | 终端之间的会话切换方法、交换机及装置 |
| CN102316301B (zh) | 2010-06-29 | 2014-05-07 | 华为终端有限公司 | 会议切换的方法、系统及设备 |
| CN102394992B (zh) * | 2011-11-07 | 2014-10-08 | 杭州华为企业通信技术有限公司 | 一种终端通话切换方法和装置 |
| US9294455B2 (en) * | 2013-06-04 | 2016-03-22 | Google Inc. | Maintaining video conference session continuity during transfer of session to alternative device |
| CN105188039B (zh) * | 2015-06-16 | 2018-09-11 | 中国联合网络通信集团有限公司 | 一种通话切换方法、装置和系统 |
| WO2016204867A1 (en) | 2015-06-18 | 2016-12-22 | Ipc Systems, Inc. | Systems, methods and computer program products for controlling the audio levels of multiple simultaneous communication channels |
| CN107872566A (zh) * | 2016-09-28 | 2018-04-03 | 中兴通讯股份有限公司 | 一种终端的通话切换方法、系统及终端 |
| CN109413284B (zh) * | 2017-08-15 | 2021-10-22 | 中国移动通信有限公司研究院 | 一种通话切换的方法和设备 |
| TW202008768A (zh) * | 2018-08-07 | 2020-02-16 | 立新 陳 | 無縫移轉通話之系統與方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378090A (en) * | 2001-07-24 | 2003-01-29 | Motorola Inc | Mobility and call management data transfer in an inter-system handover |
| CN101009650A (zh) * | 2006-01-03 | 2007-08-01 | 阿尔卡特朗讯公司 | 用于提供无缝会话移动性的方法 |
| US20070189220A1 (en) * | 2006-02-15 | 2007-08-16 | Alcatel Lucent | Method of Providing Session Mobility |
| CN101026882A (zh) * | 2007-01-17 | 2007-08-29 | 华为技术有限公司 | 一种切换检测装置、会话切换系统及方法 |
| CN101123651A (zh) * | 2007-09-11 | 2008-02-13 | 华为技术有限公司 | 终端之间的会话切换方法、交换机及装置 |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378090A (en) * | 2001-07-24 | 2003-01-29 | Motorola Inc | Mobility and call management data transfer in an inter-system handover |
| CN101009650A (zh) * | 2006-01-03 | 2007-08-01 | 阿尔卡特朗讯公司 | 用于提供无缝会话移动性的方法 |
| US20070189220A1 (en) * | 2006-02-15 | 2007-08-16 | Alcatel Lucent | Method of Providing Session Mobility |
| CN101026882A (zh) * | 2007-01-17 | 2007-08-29 | 华为技术有限公司 | 一种切换检测装置、会话切换系统及方法 |
| CN101123651A (zh) * | 2007-09-11 | 2008-02-13 | 华为技术有限公司 | 终端之间的会话切换方法、交换机及装置 |
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| EP2175606A1 (en) | 2010-04-14 |
| BRPI0816671A2 (pt) | 2015-03-17 |
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