CN109756850B - Method and system for controlling group calling in mobile communication system - Google Patents
Method and system for controlling group calling in mobile communication system Download PDFInfo
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Abstract
The invention discloses a control method and a system of group calling in a mobile communication system.A terminal provides a module for selecting exiting group calling or ending group calling, a terminal provides a module for detecting the calling state of an existing affiliated group, and the terminal provides a module for exiting group calling or rejoining group calling after refusing to join. The invention solves the problems that the user can directly end the group calling when hanging up the group calling, can not select to exit the group calling or hang up the group calling, the user can not continuously obtain the calling state of the affiliated group and the user can not rejoin the group calling after exiting the group calling. The invention can freely select whether to exit the group call or hang up the group call when the user hangs up the group call, and can detect the control method of the call state of the affiliated group; when the user exits the group call or refuses to join the group call, the user needs to join the group call again.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and a system for controlling group call in a mobile communication system.
Background
At present, the GSM-R is mainly adopted in railway mobile communication in China, and traditional dispatching communication and train control services are borne. However, GSM-R is a narrow-band communication system, and cannot meet new service requirements of continuously expanded mobile video monitoring, remote real-time monitoring of train condition information, optimal control and automatic driving, intelligent trains, railway internet of things, passenger service and the like except for traditional scheduling communication and train control services due to limitations such as low bandwidth and limited system carrying capacity.
The LTE-R can provide a network with high bandwidth, rapidness, reliability and low time delay, and can provide safe voice and data services at the same time, and the technical characteristics of the LTE-R accord with the requirements of the next generation railway wireless communication system. LTE-R has become the key research direction of the evolution of the next generation wireless communication system of the railway in China.
MCPTT (Mission Critical Push to Talk) is a trunking communication solution based on LTE proposed by 3GPP, and can meet the basic requirements of a railway dispatching communication system for voice call services.
However, the group call service in the MCPTT scheme of 3GPP is mainly oriented to public safety networks, and the group call control method thereof cannot meet the requirement of the railway service for the group call mechanism. In the current MCPTT system, a user can directly end group calling when hanging up the group calling, and can not select to quit the group calling or hang up the group calling; the user cannot continuously obtain the call state of the already affiliated group; the user can not rejoin the group call after exiting the group call.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when a user hangs up the group call, the group call can be directly ended, the user can not select to exit the group call or hang up the group call, the user can not continuously obtain the call state of the affiliated group, and the user can not rejoin the group call when exiting the group call or refusing to join the group call again.
The invention provides a terminal control method of group calling in mobile communication system, which comprises terminal providing module for selecting exiting group calling or ending group calling, terminal providing module for detecting calling state of existing attached group and terminal providing module for exiting group calling or rejoining group calling after refusing to join.
Preferably, the module for the terminal to provide the option of exiting the group call or ending the group call comprises: step A1, the terminal obtains the user type through the group configuration file; when a terminal judges that a user is a 'common user' in a signaling for initiating or joining a group call, an identity identification field brought by the user and an identification field of whether the user is an initiator of the group call are added to inform a server terminal to confirm, the user type is confirmed after the user type confirmed by a terminal receiving server is consistent with the user type judged by the terminal, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the terminal is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, the terminal only provides the option of exiting the group call; when the terminal judges that the user is an authorized management user in the group calling call joining signaling, the terminal adds an identity identification field brought by the user to inform the server terminal to confirm, after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, the terminal indicates that the user is an authorized management user of the group calling, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal only provides the option of exiting the group call; step A2, after the terminal sends out the command of "exiting group calling" or "ending group calling", adding field in the original group calling release message to indicate whether it is "exiting group calling"; if the group call release message of the terminal contains an instruction of exiting the group call, the terminal receives an individual release response message sent by the server to exit the group call; if the group calling release message does not contain the indication of exiting the group calling, the terminal receives the original group calling release flow sent by the server and releases the group calling.
Further, the terminal providing a call state module for detecting an attached group includes: the terminal sends a group call state subscription request message of an attached group to the server, and the terminal receives a group call state subscription request response message sent by the server; when the call state in the attached group changes, the terminal receives a group call state notification message sent by the server, and after receiving the notification message, the terminal updates the group call list.
Further, the module for the terminal to exit the group call or refuse to join the group call to be rejoined includes: when a user selects to rejoin a group call through a group call list in progress of the terminal, the terminal judges that the user is an 'ordinary user' instruction, the terminal adds an identity identification field brought by the user and an identification field of whether the user is an initiator of the group call in a signaling for rejoining the group call to inform a server end to confirm, the terminal receives the user type after the user type confirmed by a server is consistent with the user type judged by the terminal, the terminal confirms the user type, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, informing the terminal to provide the option of exiting the group calling; after the terminal judges that the user is an authorized management user instruction, the terminal adds an identity identification field brought by the user in a signaling for rejoining the group call to inform the server terminal to confirm, after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, the terminal confirms that the user is an authorized management user of the group call, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal is informed to provide the option of exiting the group call.
Furthermore, the method of the invention is a group calling terminal control method based on the MCPTT structure.
Further, the present invention also provides a terminal device of group call in a mobile communication system, including a computer program, where the program can be executed to implement the terminal control method of group call described above.
The invention also provides a server control method of group calling in mobile communication system, the control method includes that the server receiving terminal provides a module for exiting group calling or ending group calling, the server receiving terminal provides a module for detecting the calling state of the affiliated group, and the server receiving terminal provides a module for exiting group calling or rejoining the group calling after refusing to join, the server end in the method divides the user into normal user and authorized management user.
Preferably, the module for the server receiving terminal to provide the option of exiting the group call or ending the group call comprises: after receiving the identity identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identity identification field brought by the user and sends the confirmed information to the terminal; if the group call release message contains an instruction of exiting the group call, the server sends an individual release response message to the terminal; if the group calling release message does not contain the instruction of exiting the group calling, the server sends the original group calling release flow to the terminal to release the group calling.
Further, the server receiving terminal providing a call state module for detecting an attached group includes: the server receives a group call state subscription request message of an attached group sent by the terminal, and sends a group call state subscription request response message to the terminal; when the call state in the attached group changes, the server sends a group call state notification message to the terminal, so that the terminal updates the ongoing group call list after receiving the notification message.
Further, the module for the server receiving terminal to provide exiting group call or rejoin group call after refusing to join includes: after receiving the identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identification field brought by the user and sends the confirmed information to the terminal.
Further, the group call server control method is a group call server control method based on the MCPTT architecture.
Further, the present invention also provides a server apparatus of group call in a mobile communication system, including a computer program, where the program can be executed to implement the server control method of group call described above.
Further, the present invention provides a method for controlling group call in a mobile communication system, wherein the method includes the terminal control method of group call in the mobile communication system and the server control method of group call in the mobile communication system.
Further, the present invention provides a group call system in a mobile communication system, comprising a terminal and a server, characterized in that the terminal comprises a computer program, said program can be executed for implementing the above-mentioned group call terminal method of the mobile communication system; a computer program is included in the server, and the program can be executed to implement the group call server control method of the mobile communication system.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the problems that the user can directly end the group calling when hanging up the group calling, can not select to exit the group calling or hang up the group calling, the user can not continuously obtain the calling state of the affiliated group and the user can not rejoin the group calling after exiting the group calling. The invention can freely select whether to exit the group call or hang up the group call when the user hangs up the group call, and can detect the control method of the call state of the affiliated group; when the user exits the group call or refuses to join the group call, the user needs to join the group call again.
Drawings
FIG. 1 is a flow chart of a call control method for an authorized management subscriber according to an embodiment of the present invention;
fig. 2 is a signaling flow diagram of group call release according to an embodiment of the present invention;
fig. 3 is a signaling flow diagram of a user selecting to exit a group call according to an embodiment of the present invention;
fig. 4 is a flow chart of group call state subscription and notification to which a user has attached according to an embodiment of the present invention.
Detailed Description
The embodiment provides a terminal control method of group calling in a mobile communication system, which comprises a terminal providing a module for selecting to exit the group calling or finish the group calling, a terminal providing a module for detecting the calling state of the existing affiliated group, and a terminal providing a module for exiting the group calling or rejoining the group calling after refusing to join. The terminal provides a module for selecting to quit group calling or ending group calling, which comprises: step A1, the terminal obtains the user type through the group configuration file; when the terminal judges that the user is a 'common user' in the signaling for initiating or joining the group call, the identity identification field brought by the user and the identification field of whether the user is the initiator of the group call are added to inform the server end to confirm, the user type is confirmed after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, and when the user type is inconsistent with the user type judged by the terminal, the terminal judges that the user type is the user type sent by the terminal receiving server; if the terminal is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, the terminal only provides the option of exiting the group call; when the terminal judges that the user is an authorized management user in the group calling call joining signaling, the terminal adds an identity identification field brought by the user to inform the server terminal to confirm, after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, the terminal indicates that the user is an authorized management user of the group calling, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal only provides the option of exiting the group call; step A2, after the terminal sends out the command of "exiting group calling" or "ending group calling", adding field in the original group calling release message to indicate whether it is "exiting group calling"; if the group call release message of the terminal contains an instruction of exiting the group call, the terminal receives an individual release response message sent by the server to exit the group call; if the group calling release message does not contain the indication of exiting the group calling, the terminal receives the original group calling release flow sent by the server and releases the group calling.
The terminal provides a call state module for detecting the attached group, comprising: the terminal sends a group call state subscription request message of an attached group to the server, and the terminal receives a group call state subscription request response message sent by the server; when the call state in the attached group changes, the terminal receives a group call state notification message sent by the server, and after receiving the notification message, the terminal updates the group call list.
The module for the terminal to quit the group call or refuse to join the group call to be rejoined comprises: when a user selects to rejoin a group call through a group call list in progress of the terminal, the terminal judges that the user is an 'ordinary user' instruction, the terminal adds an identity identification field brought by the user and an identification field of whether the user is an initiator of the group call in a signaling for rejoining the group call to inform a server end to confirm, the terminal receives the user type after the user type confirmed by a server is consistent with the user type judged by the terminal, the terminal confirms the user type, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, informing the terminal to provide the option of exiting the group calling; after the terminal judges that the user is an authorized management user instruction, the terminal adds an identity identification field brought by the user in a call establishment signaling in a signaling for rejoining the group call to inform a server terminal to confirm, confirms that the user is an authorized management user of the group call after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, and judges that the user type is the user type sent by the terminal receiving server when the user type is inconsistent with the user type judged by the terminal; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal is informed to provide the option of exiting the group call. The method is a group calling terminal control method based on the MCPTT framework.
The present embodiment further provides a terminal device for group call in a mobile communication system, which includes a computer program, where the program can be executed to implement the terminal control method for group call described above.
The embodiment also provides a server control method for group calling in a mobile communication system, the control method comprises that a server receiving terminal provides a module for exiting group calling or ending group calling, the server receiving terminal provides a module for detecting the calling state of an affiliated group, and the server receiving terminal provides a module for exiting group calling or rejoining the group calling after refusing to join, in the method, the server end divides users into ordinary users and authorized management users.
The server receiving terminal provides a module for selecting to quit the group call or finish the group call, which comprises: after receiving the identity identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identity identification field brought by the user and sends the confirmed information to the terminal; if the group call release message contains an instruction of exiting the group call, the server sends an individual release response message to the terminal; if the group calling release message does not contain the instruction of exiting the group calling, the server sends the original group calling release flow to the terminal to release the group calling.
The server receiving terminal provides a call state module for detecting the attached group, which comprises: the server receives a group call state subscription request message of an attached group sent by the terminal, and sends a group call state subscription request response message to the terminal; when the call state in the attached group changes, the server sends a group call state notification message to the terminal, so that the terminal updates the ongoing group call list after receiving the notification message.
The module for the server receiving terminal to provide exiting group calling or rejoin group calling after refusing to join includes: after receiving the identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identification field brought by the user and sends the confirmed information to the terminal. The group calling server control method is a group calling server control method based on an MCPTT framework.
The present embodiment further provides a server apparatus of a group call in a mobile communication system, including a computer program, where the program can be executed to implement the server control method of a group call described above.
The present embodiment provides a method for controlling group call in a mobile communication system, where the method includes the above-mentioned terminal control method for group call in the mobile communication system and the server control method for group call in the mobile communication system.
The present embodiment provides a group call system in a mobile communication system, comprising a terminal and a server, wherein the terminal comprises a computer program, and the program can be executed to implement the group call terminal method in the mobile communication system; a computer program is included in the server, and the program can be executed to implement the group call server control method of the mobile communication system.
Fig. 1 is a flowchart of a call control method for an authorization management user according to an embodiment of the present invention.
(1) The MCPTT group configuration management server divides the users in each group into two types of 'ordinary users' and 'authorized management users' according to the application strategy;
(2) after the terminal finishes the registration process of the MCPTT, all MCPTT groups configured by the user and the user type in each group are obtained through a group configuration file obtaining flow;
(3) in the answering process of the group calling, if the terminal judges that the user belongs to an authorized management user, a field is added in the joining signaling to indicate that the user type is an authorized management user, and the MCPTT server adds a corresponding field in a response signaling in the joining process to confirm that the user belongs to the authorized management user.
(4) If the process in the step (3) successfully confirms that the user belongs to the authorized management user, providing options of ending the group call and exiting the group call on the user interaction interface; otherwise, the user interaction interface only provides an option to exit the group call.
Fig. 2 is a signaling flow diagram of group call release according to an embodiment of the present invention. When the user interaction interface selects 'finish group calling', the MCPTT terminal 1 sends SIP BYE information to the MCPTT server, after the server confirms that the group calling release condition is met, the server replies 200OK information to the MCPTT terminal 1, sends SIP BYE information to other group calling participating users to inform the group calling release, and the MCPTT terminal 2 and the MCPTT terminal 3 reply 200OK confirmation to the MCPTT server and inform the user interaction interface that the group calling is finished. The MCPTT server then releases the corresponding media resource.
Fig. 3 is a signaling flowchart illustrating a user selecting to exit a group call according to an embodiment of the present invention. When a user selects 'exit group calling' at a user interaction interface, the MCPTT terminal 1 sends a SIP BYE message containing a quick group call field to the MCPTT server, and when the MCPTT server judges that the SIP BYE is a 'exit group calling' signaling, the MCPTT server does not send the SIP BYE message to other group calling participants any more, only replies a 200OK confirmation message to the MCPTT terminal 1, and releases corresponding media resources with the MCPTT terminal 1.
Fig. 4 is a flow chart of subscription and notification of group call status to which a user is attached according to an embodiment of the present invention.
After the MCPTT terminal completes the group attachment process, a group calling state subscription request message is sent to the MCPTT server, and all the attached group calling states are subscribed;
the MCPTT server sends a group call state subscription request response message to the MCPTT terminal;
when the call state of one or more groups in the subscription group list changes, the MCPTT server sends a group call state notification message to the terminal;
after receiving the group call state notification message sent by the MCPTT, the terminal updates a local group call list and updates a user interaction interface.
The embodiment of the invention provides a control system for a mobile communication system user to exit a group call or refuse to join the group call needing to be rejoined, which comprises a computer program, wherein the program can be executed to realize the control method for the mobile communication system terminal to exit the group call and rejoin the group call.
The invention solves the problems that the user can directly end the group calling when hanging up the group calling, can not select to exit the group calling or hang up the group calling, the user can not continuously obtain the calling state of the affiliated group and the user can not rejoin the group calling after exiting the group calling. The invention can freely select whether to exit the group call or hang up the group call when the user hangs up the group call, and can detect the control method of the call state of the affiliated group; when the user exits the group call or refuses to join the group call, the user needs to join the group call again. It is also a simple variation of the embodiments of the present invention to simply use other alternative message flows to complete exiting a group call or to obtain an ongoing group call list.
The present invention has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made by those skilled in the art without departing from the spirit of the present invention based on the knowledge of the skilled person.
Claims (8)
1. A terminal control method of group calling in mobile communication system is characterized in that the control method comprises that the terminal provides a module for selecting to exit group calling or finish group calling, the terminal provides a module for detecting the calling state of the attached group, and the terminal provides a module for exiting group calling or rejoining group calling after refusing to join;
the terminal provides a module for selecting to quit group calling or ending group calling, which comprises:
step A1, the terminal obtains the user type through the group configuration file; when a terminal judges that a user is a 'common user' in a signaling for initiating or joining a group call, an identity identification field brought by the user and an identification field of whether the user is an initiator of the group call are added to inform a server terminal to confirm, the user type is confirmed after the user type confirmed by a terminal receiving server is consistent with the user type judged by the terminal, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the terminal is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, the terminal only provides the option of exiting the group call;
when the terminal judges that the user is an authorized management user in the group calling call joining signaling, the terminal adds an identity identification field brought by the user to inform the server terminal to confirm, after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, the terminal indicates that the user is an authorized management user of the group calling, and when the user type is inconsistent, the terminal judges that the user type is the user type sent by the terminal receiving server; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal only provides the option of exiting the group call;
step A2, after the terminal sends out the command of "exiting group calling" or "ending group calling", adding field in the original group calling release message to indicate whether it is "exiting group calling";
if the group call release message of the terminal contains an instruction of exiting the group call, the terminal receives an individual release response message sent by the server to exit the group call; if the group call release message does not contain the indication of exiting the group call, the terminal receives the original group call release flow sent by the server and releases the group call;
the terminal provides a call state module for detecting the attached group, comprising:
the terminal sends a group call state subscription request message of an attached group to the server, and the terminal receives a group call state subscription request response message sent by the server; when the call state in the attached group changes, the terminal receives a group call state notification message sent by the server, and after receiving the notification message, the terminal updates the group call list in progress;
the module that the terminal provides to quit the group call or need to join the group call again after refusing to join includes:
after the terminal judges that the user is a 'common user' instruction, the terminal adds an identity identification field brought by the user and an identification field whether the user is an initiator of the group call in a signaling for rejoining the group call to inform the server terminal to confirm, confirms the user type after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, and judges the user type to be the user type sent by the terminal receiving server when the user type is inconsistent with the user type judged by the terminal; if the user is the initiator of the group call, the terminal provides options of 'exiting the group call' and 'ending the group call'; otherwise, informing the terminal to provide the option of exiting the group calling;
after the terminal judges that the user is an authorized management user instruction, the terminal adds an identity identification field brought by the user in a re-joining group calling signaling to inform a server terminal to confirm, confirms that the user is an authorized management user of the group calling after the user type confirmed by the terminal receiving server is consistent with the user type judged by the terminal, and judges that the user type is the user type sent by the terminal receiving server when the user type is inconsistent with the user type judged by the terminal; if the user is an authorized management user, the terminal provides options of exiting the group call and ending the group call; otherwise, the terminal is informed to provide the option of exiting the group call.
2. The method of claim 1, wherein the method is a group call terminal control method based on MCPTT structure.
3. A terminal device of a group call in a mobile communication system, characterized in that it comprises a computer program executable for implementing the method according to any of claims 1-2.
4. A server control method of group calling in mobile communication system is characterized in that the control method comprises that a server receiving terminal provides a module for selecting to exit group calling or finish group calling, the server receiving terminal provides a module for detecting the calling state of an affiliated group, and the server receiving terminal provides a module for exiting group calling or rejoins the group calling after refusing to join, in the method, the server end divides users into ordinary users and authorized management users;
the server receiving terminal provides a module for selecting to quit the group call or finish the group call, which comprises: after receiving the identity identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identity identification field brought by the user and sends the confirmed information to the terminal;
if the group call release message contains an instruction of exiting the group call, the server sends an individual release response message to the terminal; if the group calling release message does not contain the indication of exiting the group calling, the server sends the original group calling release flow to the terminal to release the group calling;
the server receiving terminal provides a call state module for detecting the attached group, which comprises:
the server receives a group call state subscription request message of an attached group sent by the terminal, and sends a group call state subscription request response message to the terminal; when the call state in the attached group changes, the server sends a group call state notification message to the terminal, so that the terminal updates the group call list after receiving the notification message;
the module for the server receiving terminal to provide exiting group calling or rejoin group calling after refusing to join includes: after receiving the identification field brought by the user and sent by the terminal, the server adds a corresponding field in a response signaling in the joining process to confirm the identification field brought by the user and sends the confirmed information to the terminal.
5. The method of claim 4, wherein the method is a group call server control method based on MCPTT structure.
6. A server arrangement for group calls in a mobile communications system, comprising a computer program executable to implement the method of any one of claims 4 to 5.
7. A method for controlling a group call in a mobile communication system, the method comprising the terminal control method for a group call in a mobile communication system according to any one of claims 1 to 2 and the server control method for a group call in a mobile communication system according to any one of claims 4 to 5.
8. A group call system in a mobile communication system comprising a server and a terminal, characterized in that a computer program is included in the terminal, said program being executable for implementing the method according to any of claims 1-2; comprising a computer program in a server, said program being executable for implementing the method according to any of claims 4-5.
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