CN110858802A

CN110858802A - Half-duplex single call right management method and core network cluster control function body

Info

Publication number: CN110858802A
Application number: CN201810962728.0A
Authority: CN
Inventors: 陈钢
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2020-03-03
Anticipated expiration: 2038-08-22
Also published as: CN110858802B

Abstract

The invention discloses a half-duplex single call right management method and a core network cluster control function body. The half-duplex single call right management method comprises the following steps: receiving a first message for requesting to grant a talk right of a first terminal, wherein the first message comprises the talk right priority of the first terminal; judging whether the speaking right is in an idle state, if so, granting the speaking right of the first terminal, and informing the first terminal and/or a second terminal conversing with the first terminal that the first terminal is granted the speaking right; if not, judging whether the speaking right priority of the first terminal is higher than that of the second terminal; if so, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and informing the first terminal and/or the second terminal conversing with the first terminal that the first terminal is granted the speaking right. Through the mode, the invention can realize cross-core network half-duplex single-call service talk right management and avoid service interconnection and intercommunication failure.

Description

Half-duplex single call right management method and core network cluster control function body

Technical Field

The invention relates to the field of communication, in particular to a half-duplex single call right management method and a core network cluster control function body.

Background

Currently, for a cross-core network (a first core network and a second core network belong to different core networks respectively), a half-duplex single-call flow is not specified, and particularly, speech right management including speech right decision, speech right preemption and the like is not defined, for example, where a speech right management control point is and how to decide is not defined. In addition, the core network lacks the speech right priority information of the opposite-end core network user, and speech right preemption is difficult to perform. These problems may cause the interconnection and interworking problem of half-duplex single call service across the core network, resulting in that the half-duplex single call service cannot perform the right of speech preemption or the service fails.

Disclosure of Invention

The invention mainly solves the technical problem of providing a half-duplex speech right management method, a core network cluster control function body and a storage device, which can realize the speech right management of a cross-core network half-duplex single-call service, improve the speech right preemption success rate and avoid the service interconnection and intercommunication failure.

In order to solve the technical problems, the invention adopts a technical scheme that: a half-duplex single call right management method is provided, which comprises the following steps: a cluster control function body of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, and the first message is used for requesting to grant the speaking right of the first terminal; judging whether the speaking right is in an idle state, if so, granting the speaking right of the first terminal, and informing the first terminal and/or a second terminal conversing with the first terminal that the speaking right of the first terminal is granted; if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal; if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and informing the first terminal and/or a second terminal in conversation with the first terminal that the first terminal is granted the speaking right; wherein the first terminal and the second terminal respectively belong to different core networks.

In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a cluster control function of a core network, comprising: a processor, a memory, a communication circuit, the processor coupled to the memory and the communication circuit; wherein the memory is for storing program instructions for implementing the method as described above; the processor and the communication circuitry are configured to execute program instructions stored by the memory to implement the method as described above.

In order to solve the technical problem, the invention adopts another technical scheme that: there is provided an apparatus having a storage function, storing program instructions executable to implement the steps in the method as described above.

The invention has the beneficial effects that: different from the prior art, the invention judges whether to grant the speech right of the first terminal or not according to the current speech right state and the priority level of the first terminal after receiving the first message requesting to grant the speech right of the first terminal, thereby realizing the speech right management of the cross-core network half-duplex single-call service, improving the speech right preemption success rate and avoiding the service interconnection and intercommunication failure.

Drawings

Fig. 1 is a schematic flow chart of a half-duplex single-call-right management method according to a first embodiment of the present invention;

fig. 2 is a schematic flow chart of a half-duplex single-call right management method according to a second embodiment of the present invention;

fig. 3 is a schematic flow chart of a half-duplex single-call right management method according to a third embodiment of the present invention;

fig. 4 is a schematic flow chart of a half-duplex single-call right management method according to a fourth embodiment of the present invention;

fig. 5 is a flowchart illustrating a fifth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 6 is a flowchart illustrating a sixth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 7 is a flowchart illustrating a seventh embodiment of a half-duplex single-call right management method according to the present invention;

fig. 8 is a schematic flow chart of an eighth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 9 is a schematic flow chart of a ninth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 10 is a flowchart illustrating a tenth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 11 is a schematic flow chart of an eleventh embodiment of a half-duplex single-call right management method according to the present invention;

fig. 12 is a flowchart illustrating a twelfth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 13 is a schematic flowchart of a thirteenth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 14 is a flowchart illustrating a fourteenth embodiment of a half-duplex single-call right management method according to the present invention;

fig. 15 is a schematic structural diagram of a core network cluster control function provided in the present invention;

fig. 16 is a schematic structural diagram of a device with a storage function provided in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, fig. 1 is a flowchart illustrating a half-duplex single-call-right management method according to a first embodiment of the present invention. The half-duplex single call right management method provided by the invention comprises the following steps:

s101: a cluster control function of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, and the first message is used for requesting to grant the speaking right of the first terminal.

In a specific implementation scenario, a first terminal and a second terminal that are in communication with each other belong to different core networks, and a talk right is managed by a first core network TCF (trunk Control Function). Whether the first terminal or the second terminal needs to acquire the talk right or release the talk right is determined by the first core network TCF whether to grant the talk right or release the talk right. In other implementation scenarios, the second core network TCF may also decide whether to grant the talk burst or release the talk burst.

In this implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a called terminal and belongs to the called home core network, and the second terminal belongs to the calling home core network for the calling terminal. In this implementation scenario, the TCF of the calling home core network manages the talk right. In other implementation scenarios, the called home core network may manage the talk right.

In this implementation scenario, if the called terminal needs to acquire the talk right, it sends a talk right application request to the called home core network TCF, and the called home core network TCF responds to the talk right application request to generate a first message, where the first message includes the talk right priority of the called terminal. The called home core network TCF sends a first message to the calling home core network TCF to request the calling home core network to grant the called terminal the speaking right. The calling home core network receives the first message, reads the content of the first message and obtains the information that the called terminal applies for the authorized speaking right.

In another implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a calling terminal and belongs to the calling home core network, and the second terminal belongs to the called home core network for the called terminal. In this implementation scenario, the calling home core network TCF manages the talk right. In other implementation scenarios, the called home core network may manage the talk right.

When a calling terminal needs to acquire the speaking right, a speaking right application request is sent to a TCF (core network control) to which the calling terminal belongs, the speaking right application request is a first message, and the speaking right application request comprises the speaking right priority of the calling terminal. The calling attributive core network TCF receives the speaking right application request and obtains the information of the calling terminal applying the authorized speaking right.

S102: and judging whether the talk right is in an idle state or not.

In a specific implementation scenario, if neither the first terminal nor the second terminal occupies the talk right, the talk right is in an idle state.

S103: and if the speaking right is in an idle state, the speaking right of the first terminal is granted, and the first terminal and/or a second terminal which has conversation with the first terminal is notified that the speaking right of the first terminal is granted.

In a specific implementation scenario, if the talk right is in the idle state, the first core network TCF grants the talk right to the first terminal in response to the first message, and notifies the first terminal and the second terminal having a session with the first terminal that the first terminal is granted the talk right, so that the first terminal and the second terminal adjust their settings accordingly according to the notification. In other implementation scenarios, only the first terminal or only the second terminal may be notified.

In this implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a called terminal and belongs to the called home core network, and the second terminal belongs to the calling home core network for the calling terminal. The calling home core network TCF manages the talk right.

And the TCF of the core network of the calling home determines that the current speech right is in an idle state, the core network of the calling home responds to the first message to grant the speech right of the called terminal, and sends a first success message to the TCF of the core network of the called home, so that the TCF of the core network of the called home informs the called terminal of the granted speech right.

In another implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a calling terminal and belongs to the calling home core network, and the second terminal belongs to the called home core network for the called terminal. The calling home core network TCF manages the talk right.

And the calling attributive core network TCF judges that the current speech right is in an idle state, the calling attributive core network responds to the first message to grant the speech right of the calling terminal, and sends an authorization notification message to the called attributive core network TCF, so that the called attributive core network TCF notifies the called terminal, and the calling terminal is granted the speech right.

S104: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In a specific implementation scenario, the talk burst is not in the idle state, and since the first core network TCF has determined that the first terminal has made a talk burst application in step S101, it may be determined that the second terminal occupies the talk burst. The first core network TCF acquires the speaking right priority of the second terminal, and judges whether the speaking right priority of the first terminal is higher than that of the second terminal or not by combining the speaking right priority of the first terminal included in the first message.

And the TCF judges whether the speaking right priority of the called terminal is higher than that of the calling terminal.

And the TCF judges whether the speaking right priority of the calling terminal is higher than that of the called terminal.

S105: and if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and informing the first terminal and/or the second terminal in conversation with the first terminal that the first terminal is granted with the speaking right.

In a specific implementation scenario, if the talk right priority of the first terminal is higher than the talk right priority of the second terminal, the talk right of the second terminal is released, the talk right of the first terminal is granted, and the first terminal and the second terminal having a session with the first terminal are notified that the first terminal is granted the talk right, so that the first terminal and the second terminal adjust their settings according to the notification. In other implementation scenarios, only the first terminal or only the second terminal may be notified.

And under the condition that the speaking right priority of the called terminal is higher than that of the calling terminal, the calling attribution core network grants the speaking right of the called terminal and sends a first success message to the called attribution core network, so that the called attribution core network informs the called terminal of the granted speaking right.

And under the condition that the speaking right priority of the calling terminal is higher than that of the called terminal, the calling attribution core network grants the speaking right of the calling terminal and sends an authorization notification message to the second core network TCF, so that the called attribution core network TCF notifies the called terminal that the calling terminal is granted the speaking right.

As can be seen from the above description, in this embodiment, under the condition of a cross-core-network half-duplex single call, one core network TCF is selected to manage the talk right, when the talk right is idle, the core network TCF grants the talk right of the first terminal in response to a received first message requesting to grant the talk right of the first terminal, and when the talk right is occupied by the second terminal, the core network TCF grants the talk right of the first terminal under the condition that the talk right priority of the first terminal is higher than the talk right priority of the second terminal, and notifies the first terminal and/or the second terminal after granting the talk right of the first terminal, thereby defining and implementing a cross-core-network half-duplex single call traffic right management rule, improving the talk right preemption success rate, and avoiding a traffic interconnection and interworking failure.

Referring to fig. 2, fig. 2 is a schematic flow chart of a half-duplex single-call-right management method according to a second embodiment of the present invention, and the half-duplex single-call-right management method includes:

s201: a cluster control function of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, and the first message is used for requesting to grant the speaking right of the first terminal.

S202: and judging whether the talk right is in an idle state or not.

In this implementation scenario, steps S201 to S202 provided in this embodiment are substantially similar to steps S101 to S102 in the first embodiment of the half-duplex talk right management method provided in the present invention, and are not described herein again.

S203: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In this implementation scenario, step S203 in this embodiment is substantially similar to step S104 in the first embodiment of the half-duplex talk right management method in this embodiment, and is not described herein again.

S204: and if the speaking right priority of the first terminal is lower than or equal to the speaking right priority of the second terminal, refusing to grant the speaking right of the first terminal, and informing the first terminal and/or the second terminal in conversation with the first terminal that the first terminal is refused to grant the speaking right.

In a specific implementation scenario, if the talk right priority of the first terminal is lower than or equal to the talk right priority of the second terminal, the first terminal is denied the talk right, and the first terminal and the second terminal having a session with the first terminal are notified that the first terminal is denied the talk right, so that the first terminal and the second terminal correspondingly maintain their own settings according to the notification. In other implementation scenarios, only the first terminal or only the second terminal may be notified.

And when the speaking right priority of the called terminal is lower than or equal to the speaking right priority of the calling terminal, the TCF refuses to grant the speaking right of the called terminal.

And when the speaking right priority of the calling terminal is lower than or equal to that of the called terminal, the TCF refuses to grant the speaking right of the calling terminal.

As can be seen from the above description, in this embodiment, when the talk right is occupied by the second terminal, after the core network TCF responds to the received first message requesting to grant the talk right of the first terminal, the core network TCF refuses to grant the talk right of the first terminal when the talk right priority of the first terminal is lower than or equal to the talk right priority of the second terminal, and notifies the first terminal and/or the second terminal, thereby defining and implementing the management rule of the talk right of the half-duplex single-call service across the core network, improving the success rate of the talk right preemption, and avoiding the failure of service interconnection and interworking.

Referring to fig. 3, a flow chart of a half-duplex single-call right management method according to a third embodiment of the present invention is schematically illustrated, and the half-duplex single-call right management method according to the present invention includes:

s301: a cluster control function of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, and the first message is used for requesting to grant the speaking right of the first terminal.

S302: and judging whether the talk right is in an idle state or not.

S303: and if the speaking right is in an idle state, the speaking right of the first terminal is granted, and the first terminal and/or a second terminal which has conversation with the first terminal is notified that the speaking right of the first terminal is granted.

S304: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

S305: and if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and informing the first terminal and/or the second terminal in conversation with the first terminal that the first terminal is granted with the speaking right.

In this implementation scenario, steps S301 to S305 provided in this embodiment are substantially similar to steps S101 to S105 in the first embodiment of the half-duplex talk right management method provided in the present invention, and are not described herein again.

S306: and receiving a second message, wherein the second message is used for applying for releasing the speaking right of the first terminal.

In a specific implementation scenario, the first terminal is granted the talk burst in step S303 or in no-want S305, and now the first terminal needs to release the talk burst, a second message for applying for releasing the talk burst of the first terminal is sent to the first core network TCF. And after receiving the second message, the first core network TCF acquires information that the first terminal applies for releasing the speaking right.

After the calling core network TCF grants the called terminal speech right, the called terminal needs to release the speech right, then sends a speech right release request to the called home core network TCF, after receiving the speech right release request, the called home core network TCF responds to the speech right release request to generate a second message and sends the second message to the calling home core network TCF, and after receiving the second message, the calling home core network TCF obtains the information of the called terminal applying for releasing the speech right.

After the calling core network TCF grants the calling terminal speech right, the calling terminal needs to release the speech right, then sends a speech right release request to the calling home core network TCF, the speech right release request is a second message, and the calling home core network TCF obtains the information of the called terminal applying for releasing the speech right after receiving the second message.

S307: and releasing the speaking right of the first terminal, and informing the first terminal and/or the second terminal that the speaking right of the first terminal is released.

In a specific implementation scenario, the first core network TCF responds to the second message to release the talk burst of the first terminal, and notifies the first terminal and the second terminal having a session with the first terminal that the talk burst of the first terminal is released, so that the first terminal and the second terminal correspondingly maintain their own settings according to the notification. In other implementation scenarios, only the first terminal or only the second terminal may be notified.

The calling home core network TCF responds to the second message to release the speaking right of the called terminal and sends a second success message to the TCF of the called home core network, so that the TCF of the called home core network informs the called terminal of the released speaking right.

The calling home core network TCF responds to the second message to release the speaking right of the calling terminal and sends a speaking right release message to the called home core network TCF, so that the called home core network TCF informs the called terminal and the calling terminal is released from the speaking right.

As can be seen from the above description, in this implementation scenario, when the first core network TCF receives a second message requesting to release the talk right of the first terminal when the first terminal occupies the talk right, the first core network TCF responds to the second message to release the talk right of the first terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 4, fig. 4 is a schematic flow chart of a fourth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s401: the method comprises the steps that a cluster control function body of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal and is used for requesting to grant the speaking right of the first terminal, and the first message is generated by the cluster control function body of a second core network in response to a speaking right application request of the first terminal and is sent to the cluster control function body of the first core network.

In a specific implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a called terminal and belongs to the called home core network, and the second terminal belongs to the calling home core network for the calling terminal. The calling home core network TCF manages the talk right. In other implementation scenarios, the called home core network TCF may also decide whether to grant the talk burst or release the talk burst.

In this implementation scenario, the called user terminal needs to acquire the speech right, and then sends a speech right application request to the called home core network TCF, and the called home core network TCF responds to the speech right application request to generate a first message and sends the first message to the calling home core network TCF. In this implementation scenario, the first message includes, in addition to the priority of the called terminal, a speech right application request identifier, a global session identifier, and a first session description protocol.

In this implementation scenario, the first message is a re-INVITE message, the speech right application request identifier is used to indicate that the re-INVITE message is used to provide a speech right application request to the calling home core network TCF, and the global session identifier is a common identifier of the called terminal, the calling home core network TCF, and the called home core network TCF participating in the session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the called terminal. The first session description protocol is used to define the media stream direction of the called terminal, and in this implementation scenario, the called terminal applies for the right of speech, so in the first session description protocol, the media stream direction of the called terminal is the sending-only direction.

S402: and sending a first temporary response message to the cluster control function body of the second core network to inform the cluster control function body of the second core network that the first message is successfully received.

In a specific implementation scenario, after receiving a first message sent by a called home core network TCF, a calling home core network TCF sends a first temporary response message to the called home core network TCF, so as to notify that the called home core network TCF has successfully received the first message. In this implementation scenario, the first interim message is a 100trying message.

S403: and judging whether the talk right is in an idle state or not.

In this implementation scenario, step S403 provided in this embodiment is substantially similar to step S102 in the first embodiment of the half-duplex talk right management method provided in the present invention, and is not described herein again.

S404: and if the speaking right is in an idle state, granting the speaking right of the first terminal, and sending a first success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal that the speaking right is granted.

In a specific implementation scenario, if the speech right is in an idle state, the calling home core network TCF grants the speech right to the called terminal, and sends a first success message to the called home core network TCF to notify the called home core network TCF that the called terminal has been granted the speech right, so that the called home core network TCF can notify the called terminal that it has been granted the speech right. In this implementation scenario, the first successful message is a 200OK message.

In this implementation scenario, the first success message further includes a second session description protocol, where the second session description protocol is used to define a direction of a media stream of the calling terminal, and in this implementation scenario, the talk right is granted to the called terminal, and the calling terminal does not have the talk right, so in the second session description protocol, the media stream direction of the calling terminal is defined as a receiving-only direction.

S405: and receiving a first confirmation message sent by the cluster control function body of the second core network.

In a specific implementation scenario, after receiving the first success message and notifying the called terminal that the called terminal has been granted the talk right, the called home core network TCF sends a first confirmation message to the calling home core network TCF to notify the calling home core network TCF that the called terminal knows that the called terminal has been granted the talk right. After receiving the ACK message, the TCF confirms that the called terminal knows that it has been granted the talk right. In this implementation scenario, the first acknowledgement message is an ACK message.

S406: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In this implementation scenario, step S406 in this embodiment is substantially similar to step S104 in the first embodiment of the half-duplex talk right management method in the present invention, and is not described herein again.

S407: and if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and sending a first success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal of the granted speaking right.

In a specific implementation scenario, if the talk right priority of the called terminal is higher than the talk right priority of the calling terminal, the TCF releases the talk right of the calling terminal, grants the talk right of the called terminal, and sends a first success message to the TCF to notify the TCF of the called home core network that the called terminal has been granted the talk right, so that the TCF can notify the called terminal that the talk right has been granted. In this implementation scenario, the first successful message is a 200OK message.

In this implementation scenario, the first success message further includes a second session description protocol, where the second session description protocol is used to define a direction of a media stream of the calling terminal, and in this implementation scenario, the talk right is granted to the called terminal, and the calling terminal does not have the talk right, so in the second session description protocol, the media stream direction of the calling terminal is defined as a receiving direction.

S408: and receiving a first confirmation message sent by the cluster control function body of the second core network.

In this implementation scenario, step S408 provided in this embodiment is substantially similar to step S405 in this embodiment, and is not described here again.

As can be seen from the above description, when receiving a speech right application from a called terminal belonging to another core network, the TCF in this embodiment grants a speech right to the called terminal if the current speech right is idle, and grants a speech right to the called terminal if the calling terminal occupies the speech right and the priority of the speech right of the called terminal is higher than that of the calling terminal, thereby defining and implementing a speech right management rule of a half-duplex single-call service across core networks, improving a success rate of speech right preemption, and avoiding a failure in service interconnection and interworking. The first temporary response message and the first confirmation message confirm that the information is successfully received, thereby improving reliability.

Referring to fig. 5, fig. 5 is a schematic flow chart of a fifth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s501: the method comprises the steps that a cluster control function body of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal and is used for requesting to grant the speaking right of the first terminal, and the first message is generated by the cluster control function body of a second core network in response to a speaking right application request of the first terminal and is sent to the cluster control function body of the first core network.

S502: and sending a first temporary response message to the cluster control function body of the second core network to inform the cluster control function body of the second core network that the first message is successfully received.

S503: and judging whether the talk right is in an idle state or not.

In this implementation scenario, steps S501 to S503 provided in this embodiment are substantially similar to steps S401 to S403 in the fourth embodiment of the half-duplex talk right management method provided in the present invention, and are not described herein again.

S504: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In this implementation scenario, step S504 provided in this embodiment is substantially similar to step S406 in the fourth embodiment of the half-duplex talk right management method provided in the present invention, and is not described herein again.

S505: if the speaking right priority of the first terminal is lower than or equal to the speaking right priority of the second terminal, refusing to grant the speaking right of the first terminal, and sending a first refusing authorization message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal that the speaking right is refused to be granted.

In a specific implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a called terminal and belongs to the called home core network, and the second terminal belongs to the calling home core network for the calling terminal. The calling home core network TCF manages the talk right.

The speaking right priority of the called terminal is lower than or equal to the speaking right priority of the calling terminal, the calling home core network TCF refuses to grant the speaking right of the called terminal, the speaking right is still occupied by the calling terminal, the calling home core network TCF sends a first authorization refusing message to the called home core network TCF, the first authorization refusing message comprises a 4XX/5XX/6XX message, such as a 603Decline message, the specific content of the authorization refusing message is determined according to the actual situation, and the detailed description is omitted here.

S506: and receiving a first confirmation message sent by the cluster control function body of the second core network.

After receiving the first refusal authorization message, the called home core network TCF informs the called terminal that the speaking right application is refused, and sends a first confirmation message to the calling home core network TCF to inform the calling home core network TCF that the called terminal knows that the speaking right application is refused. In this implementation scenario, the first acknowledgement message is an ACK message, and after receiving the ACK message, the TCF confirms that the called terminal knows that its speech right application is rejected.

As can be seen from the above description, in this embodiment, after the TCF responds to the received first message requesting to grant the talk right of the called terminal, if the talk right is occupied by the second terminal, the TCF refuses to grant the talk right of the called terminal under the condition that the talk right priority of the called terminal is lower than or equal to the talk right priority of the second terminal, and notifies the called terminal and/or the second terminal, thereby defining and implementing the talk right management rule of the half-duplex single-call service across the core network, improving the success rate of the talk right preemption, and avoiding the failure of service interconnection and interworking.

Referring to fig. 6, fig. 6 is a schematic flow chart of a sixth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s601: the method comprises the steps that a cluster control function body of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal and is used for requesting to grant the speaking right of the first terminal, and the first message is generated by the cluster control function body of a second core network in response to a speaking right application request of the first terminal and is sent to the cluster control function body of the first core network.

S602: and sending a first temporary response message to the cluster control function body of the second core network to inform the cluster control function body of the second core network that the first message is successfully received.

S603: and judging whether the talk right is in an idle state or not.

S604: and if the speaking right is in an idle state, granting the speaking right of the first terminal, and sending a first success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal that the speaking right is granted.

S605: and receiving a first confirmation message sent by the cluster control function body of the second core network.

S606: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

S607: and if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and sending a first success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal of the granted speaking right.

S608: and receiving a first confirmation message sent by the cluster control function body of the second core network.

In this implementation scenario, steps S601 to 608 provided in this embodiment are substantially similar to steps S401 to S408 in the fourth embodiment of the half-duplex talk right management method provided in the present invention, and are not described herein again.

S609: and receiving a second message, wherein the second message is used for applying for releasing the speaking right of the first terminal, and the second message is generated by the trunking control function of the second core network in response to the speaking right release request of the first terminal and is sent to the trunking control function of the first core network.

After the calling home core network TCF grants the speaking right of the called terminal, the called terminal needs to release the speaking right, the called terminal sends a speaking right release request to the called home core network TCF, and the called home core network TCF responds to the speaking right release request to generate a second message after receiving the speaking right release request. In this implementation scenario, the second message includes a talk burst release request identifier, a global call identifier, and a third session description protocol.

In this implementation scenario, the second message is a re-INVITE message, the speech right release request identifier is used to indicate that the re-INVITE message is for a speech right release request, and the global session identifier is a common identifier of the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the called terminal. The third session description protocol is used to define the media stream direction of the called terminal, and in this implementation scenario, the called terminal applies for releasing the talk right, so in the third session description protocol, the media stream direction of the called terminal is inactive.

S610: sending a second temporary response message to the cluster control function of the second core network to notify the cluster control function of the second home core network that the second message has been successfully received.

In a specific implementation scenario, after receiving the second message sent by the called home core network TCF, the calling home core network TCF sends a second temporary response message to the called home core network TCF, so as to notify the called home core network TCF that the second message has been successfully received. In this implementation scenario, the second temporary response message is a 100trying message.

S611: and releasing the speaking right of the first terminal, and sending a second success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the released speaking right of the first terminal.

In a specific implementation scenario, after receiving the second message, the TCF learns, according to the content of the second message, that the called terminal applies for releasing the talk right, and then releases the talk right of the called terminal, and sends a second success message to the TCF to notify the TCF of the called home core network, so that the TCF can notify the called terminal that the talk right is released. In this implementation scenario, the second success message is a 200OK message.

In this implementation scenario, the second success message further includes a fourth session description protocol, where the fourth session description protocol is used to define a direction of a media stream of the calling terminal, and in this implementation scenario, the calling terminal does not occupy a talk right, and the called terminal applies for releasing the talk right, so in the fourth session description protocol, the direction of the media stream of the calling terminal is defined as inactive.

S612: and receiving a second confirmation message sent by the trunking control function body of the second core network, wherein the second confirmation message is a speaking right application request sent by the trunking control function body of the second core network after informing the first terminal that the speaking right of the first terminal is released.

In a specific implementation scenario, the called home core network TCF receives the second success message and notifies the called terminal, and after the talk right of the called terminal is released, the called home core network TCF sends a second confirmation message to the calling home core network TCF to notify the calling home core network TCF that the called terminal knows that the talk right of the called terminal has been granted. In this implementation scenario, the second acknowledgement message is an ACK message, and after receiving the ACK message, the TCF confirms that the called terminal knows that the talk right is released.

As can be seen from the above description, in this embodiment, when the TCF receives a second message requesting to release the talk right of the called terminal when the called terminal occupies the talk right, the TCF responds to the second message to release the talk right of the called terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 7, fig. 7 is a schematic flow chart of a seventh embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s701: the trunking control function of the first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, is used for requesting to grant the speaking right of the first terminal, and is sent to the trunking control function of the first core network by the first terminal.

In a specific implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a calling terminal and belongs to the calling home core network, and the second terminal belongs to the called home core network for the called terminal. The calling home core network TCF manages the talk right. In other implementation scenarios, the called home core network TCF may also decide whether to grant the talk burst or release the talk burst.

In this implementation scenario, when the calling terminal needs to acquire the right of speech, it sends a request for applying the right of speech to the TCF.

S702: and judging whether the talk right is in an idle state or not.

In this implementation scenario, step S702 provided in this embodiment is substantially similar to step S102 in the first embodiment of the half-duplex talk right management method provided in the present invention, and is not described herein again.

S703: and if the speaking right is in an idle state, granting the speaking right of the first terminal, and sending an authorization notification message to the cluster control function body of the second core network, so that the cluster control function body of the second core network notifies the second terminal that the speaking right of the first terminal is granted.

In a specific implementation scenario, when the current speech right is in an idle state, after receiving a speech right application request, the TCF of the calling home core network grants the speech right of the calling terminal in response to the speech right application request, and sends an authorization notification message to the TCF of the called home core network, so that the TCF of the called home core network notifies the called terminal that the calling terminal is granted the speech right. The authorization notification message comprises a speaking right application notification identifier, a global session identifier and a fifth session description protocol.

In this implementation scenario, the authorization notification message is a re-INVITE message, the speech right application notification identifier is used to indicate that the re-INVITE message is used for speech right application notification, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the called terminal, the calling home core network TCF, and the called home core network TCF corresponding to the calling terminal. The fifth session description protocol is used to define the media stream direction of the calling terminal, and in this implementation scenario, the calling terminal applies for the talk right, so in the fifth session description protocol, the media stream direction of the calling terminal is the sending-only direction.

S704: and receiving a third temporary response message sent by the trunking control function of the second core network, where the third temporary response message is used to notify the trunking control function of the first core network that the authorization notification message is successfully received.

In a specific implementation scenario, after receiving the authorization notification message sent by the calling home core network TCF, the called home core network TCF sends a third temporary response message to the calling home core network TCF, so as to notify the calling home core network TCF that the authorization notification message has been successfully received. In this implementation scenario, the third temporary response message is a 100trying message.

S705: and receiving a third success message sent by the trunking control function of the second core network, where the third success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right.

In a specific implementation scenario, after receiving the authorization notification message, the called home core network TCF reads the content thereof, notifies the called terminal that the calling terminal is granted the talk right, and sends a third success message to the calling home core network TCF to notify the calling home core network TCF that the calling terminal has been notified that the calling terminal is granted the talk right. In this implementation scenario, the third success message is a 200OK message.

In this implementation scenario, the third success message further includes a sixth session description protocol, where the sixth session description protocol is used to define the direction of the media stream of the called terminal, and in this implementation scenario, the calling terminal applies for granting the right of speech, so in the sixth session description protocol, the media stream direction of the called terminal is defined as the receiving-only direction.

S706: and sending a third confirmation message to the cluster control function of the second core network to inform the cluster control function of the second core network that the third success message is successfully received.

In a specific implementation scenario, after receiving the third success message, the calling home core network TCF sends a third confirmation message to the called home core network TCF to notify the called home core network TCF that the third success message is received. In this implementation scenario, the third acknowledgement message is an ACK message, and after receiving the ACK message, the TCF confirms that the called terminal knows that the calling terminal is granted the talk right.

S707; and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In this implementation scenario, step S707 provided in this embodiment is substantially similar to step S104 in the first embodiment of the half-duplex talk right management method provided in this invention, and is not described herein again.

S708: if the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and sending an authorization notification message to the cluster control function body of the second core network, so that the cluster control function body of the second core network notifies the second terminal that the speaking right of the first terminal is granted.

In a specific implementation scenario, if the priority of the calling terminal is higher than that of the called terminal, the TCF releases the talk right of the called terminal, grants the talk right of the calling terminal, and sends an authorization notification message to the TCF to notify the TCF of the called home core network that the calling terminal has been granted the talk right, so that the TCF can notify the called terminal that the calling terminal has been granted the talk right. The authorization notification message comprises a speaking right application notification identifier, a global session identifier and a fifth session description protocol.

S709: and receiving a third temporary response message sent by the trunking control function of the second core network, where the third temporary response message is used to notify the trunking control function of the first core network that the authorization notification message is successfully received.

S710: and receiving a third success message sent by the trunking control function of the second core network, where the third success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right.

S711: and sending a third confirmation message to the cluster control function of the second core network to inform the cluster control function of the second core network that the third success message is successfully received.

In this implementation scenario, steps S709 to S711 provided in this embodiment are substantially similar to steps S704 to S706 in this embodiment, and are not described herein again.

As can be seen from the above description, in this embodiment, when receiving a speech right application from a calling terminal, a TCF in a core network to which the calling terminal belongs grants the speech right to the calling terminal if the current speech right is idle, and grants the speech right to the calling terminal if the called terminal occupies the speech right and the priority of the speech right of the calling terminal is higher than that of the speech right of the called terminal, so that a speech right management rule of a half-duplex single-call service across core networks is defined and implemented, the success rate of speech right preemption is improved, and service interconnection and interworking failure is avoided. The third temporary response message and the third confirmation message confirm that the information is successfully received, thereby improving reliability.

Referring to fig. 8, fig. 8 is a schematic flow chart of an eighth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s801: the trunking control function of the first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, is used for requesting to grant the speaking right of the first terminal, and is sent to the trunking control function of the first core network by the first terminal.

S802: and judging whether the talk right is in an idle state or not.

In this implementation scenario, steps S801 to S802 provided in this embodiment are substantially similar to steps S701 to S702 in the seventh embodiment of the half-duplex single-call right management method provided in the present invention, and are not described herein again.

S803: and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

In this implementation scenario, step S803 provided in this embodiment is substantially similar to step S707 in the seventh embodiment of the half-duplex single-call right management method provided in this invention, and is not described herein again.

S804: and if the speaking right priority of the first terminal is lower than or equal to the speaking right priority of the second terminal, refusing to grant the speaking right of the first terminal, and sending a second refusing authorization message to the trunking control function body of the second core network, so that the trunking control function body of the second core network informs the second terminal that the speaking right of the first terminal is refused to be granted.

In a specific implementation scenario, the first core network is a calling home core network, the second core network is a called home core network, the first terminal is a calling terminal and belongs to the calling home core network, and the second terminal belongs to the called home core network for the called terminal. The calling home core network TCF manages the talk right.

And if the speaking right priority of the calling terminal is lower than or equal to the speaking right priority of the called terminal, the calling attribution core network TCF refuses to grant the speaking right of the calling terminal, the speaking right is still occupied by the called terminal, and the calling attribution core network TCF sends a second refusing authorization message to the called attribution core network TCF. In other implementation scenarios, the right to speak for the calling terminal may be denied only, and the called terminal is not notified.

As can be seen from the above description, in this embodiment, after receiving the first message for requesting to grant the talk right of the calling terminal, if the talk right is occupied by the called terminal, the TCF of the calling home core network denies to grant the talk right of the calling terminal under the condition that the talk right priority of the calling terminal is lower than or equal to the talk right priority of the called terminal, and notifies the calling terminal and/or the called terminal, thereby defining and implementing the cross-core network half-duplex single-call traffic right management rule, improving the talk right preemption success rate, and avoiding the traffic interconnection and interworking failure.

Referring to fig. 9, fig. 9 is a schematic flow chart of a ninth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s901: the trunking control function of the first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, is used for requesting to grant the speaking right of the first terminal, and is sent to the trunking control function of the first core network by the first terminal.

S902: and judging whether the talk right is in an idle state or not.

S903: and if the speaking right is in an idle state, granting the speaking right of the first terminal, and sending an authorization notification message to the cluster control function body of the second core network, so that the cluster control function body of the second core network notifies the second terminal that the speaking right of the first terminal is granted.

S904: and receiving a third temporary response message sent by the cluster control function of the second core network, where the third temporary response message is used to notify the first core network that the authorization notification message is successfully received.

S905: and receiving a third success message sent by the trunking control function of the second core network, where the third success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right.

S906: and sending a third confirmation message to the cluster control function of the second core network to inform the cluster control function of the second core network that the third success message is successfully received.

S907; and if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal.

S908: if the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and sending an authorization notification message to the cluster control function body of the second core network, so that the cluster control function body of the second core network notifies the second terminal that the speaking right of the first terminal is granted.

S909: and receiving a third temporary response message sent by the trunking control function of the second core network, where the third temporary response message is used to notify the trunking control function of the first core network that the authorization notification message is successfully received.

S910: and receiving a third success message sent by the trunking control function of the second core network, where the third success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right.

S911: and sending a third confirmation message to the cluster control function of the second core network to inform the cluster control function of the second core network that the third success message is successfully received.

In this implementation scenario, steps S901 to S911 provided in this embodiment are substantially similar to steps S701 to S711 in the seventh embodiment of the half-duplex single-call right management method provided in the present invention, and are not described herein again.

S912: and receiving a second message, wherein the second message is used for applying for releasing the speaking right of the first terminal, and the second message is a speaking right release request sent by the first terminal to the trunking control function body of the first core network.

In a specific implementation scenario, after the calling home core network TCF grants the calling terminal the talk right, the calling terminal needs to release the talk right, and then the calling terminal sends a talk right release request to the calling home core network TCF.

S913: and releasing the speaking right of the first terminal, and sending a speaking right release message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the second terminal that the speaking right of the first terminal is released.

After receiving the second message, the calling home core network TCF obtains, according to the content of the second message, that the calling terminal applies for releasing the talk right, and then responds to the second message to release the talk right of the calling terminal, and sends a talk right release message to the called home core network TCF, so that the called home core network TCF notifies the called terminal that the calling terminal is released with the talk right. The authorization notification message comprises a talk burst release notification identifier, a global session identifier and a seventh session description protocol.

In this implementation scenario, the authorization notification message is a re-INVITE message, the speech right release notification identifier is used to indicate that the re-INVITE message is for speech right release notification, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the called terminal, the calling home core network TCF, and the called home core network TCF corresponding to the calling terminal. The seventh session description protocol is used to define the media stream direction of the calling terminal, and in this implementation scenario, the calling terminal applies for releasing the talk right, so in the fifth session description protocol, the media stream direction of the calling terminal is inactive.

S914: receiving a fourth temporary response message sent by the trunking control function of the second core network, where the fourth temporary response message is sent by the trunking control function of the second core network to notify that the talk burst release has been successfully received.

In a specific implementation scenario, after receiving the talk right release message sent by the calling home core network TCF, the called home core network TCF sends a fourth temporary response message to the calling home core network TCF, so as to notify the calling home core network TCF that the talk right release message has been successfully received. In this implementation scenario, the fourth temporary response message is a 100trying message.

S915: and receiving a fourth success message sent by the trunking control function of the second core network, where the fourth success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is released.

In a specific implementation scenario, after receiving the talk right release message, the called home core network TCF reads the content thereof, notifies the called terminal that the calling terminal is released of the talk right, and sends a fourth success message to the calling home core network TCF to notify the calling home core network TCF that the called terminal has been notified that the calling terminal is released of the talk right. In this implementation scenario, the fourth success message is a 200OK message.

In this implementation scenario, the fourth success message further includes an eighth session description protocol, where the eighth session description protocol is used to define a direction of a media stream of the called terminal, and in this implementation scenario, the calling terminal applies for releasing the talk right, so in the eighth session description protocol, the media stream direction of the called terminal is defined as inactive.

S916: and sending a fourth confirmation message to the cluster control function of the second core network to notify the cluster control function of the second core network that the fourth success message is successfully received.

In a specific implementation scenario, after receiving the fourth success message, the calling home core network TCF sends a fourth confirmation message to the called home core network TCF to notify the called home core network TCF that the fourth success message is received. In this implementation scenario, the fourth acknowledgement message is an ACK message, and after receiving the ACK message, the TCF confirms that the called terminal knows that the calling terminal is released.

As can be seen from the above description, in this embodiment, when the calling terminal occupies the talk right, the TCF receives a second message requesting to release the talk right of the calling terminal, and then responds to the second message to release the talk right of the calling terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 10, fig. 10 is a schematic flow chart of a tenth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method according to the present invention includes:

s1001: and the calling home core network TCF receives a re-INVITE message sent by the called home core network TCF.

In a specific implementation scenario, the calling terminal and the called terminal belong to different core networks, and the call right is managed by a Trunk Control Function (TCF) of the calling home core network. Whether the called terminal or the calling terminal needs to acquire the speech right or release the speech right is determined by the TCF (core network control function) of the calling home core network whether to grant the speech right or release the speech right.

In this implementation scenario, when a called terminal needs to obtain a talk right, it sends a talk right application request to a called home core network TCF (trunked control Function), and after receiving the talk right application request, the called home core network TCF responds to the talk right application request to generate a re-INVITE message and sends the re-INVITE message to a calling home core network TCF. The re-INVITE message comprises the speaking right priority of the called terminal, the speaking right application request identification, the global session identification and the session description protocol.

In this implementation scenario, the speech right application request identifier is used to indicate that the re-INVITE message is for a speech right application request, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the called terminal. The session description protocol is used to define the media stream direction of the called terminal, and in this implementation scenario, the called terminal applies for the talk right, so in the session description protocol, the media stream direction of the called terminal is the sending-only direction.

S1002: the calling home core network TCF sends a 100trying temporary response message to the called home core network TCF.

In a specific implementation scenario, after receiving a re-INVITE message sent by a called home core network TCF, a calling home core network TCF sends a 100trying temporary response message to the called home core network TCF, so as to notify that the called home core network TCF re-INVITE message has been successfully received.

S1003: and the calling home core network TCF grants the speaking right of the called terminal.

In a specific implementation scenario, if the talk right is in an idle state, the TCF grants the talk right to the called terminal.

S1004: the calling home core network TCF sends a 200OK message to the called core network TCF.

In a specific implementation scenario, the calling home core network TCF sends a 200OK message to the called home core network TCF to notify the called home core network TCF that the called terminal has been granted the talk right, so that the called home core network TCF can notify the called terminal that it has been granted the talk right.

In this implementation scenario, the 200OK message further includes a session protocol, where the session protocol is used to define the direction of the media stream of the calling terminal, and in this implementation scenario, the talk right is granted to the called terminal, and the calling terminal does not have the talk right, so in the session protocol, the direction of the media stream of the calling terminal is defined as the receiving direction.

S1005: and the calling home core network TCF receives the ACK message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the 200OK message and notifying the called terminal that the called terminal has been granted the talk right, the TCF sends an ACK message to the TCF to notify the TCF to which the calling terminal has been granted the talk right. After receiving the ACK message, the TCF confirms that the called terminal knows that it has been granted the talk right.

S1006: and the calling home core network receives the re-INVITE message sent by the called home core network TCF.

In a specific implementation scenario, after the TCF grants the talk right to the called terminal, the called terminal needs to release the talk right. The called terminal sends a talk right release request to the called home core network TCF, and the called home core network TCF responds to the talk right release request to generate re-INVITE message after receiving the talk right release request. In this implementation scenario, the re-INVITE message includes a talk burst release request identifier, a global call identifier, and a session description protocol.

In this implementation scenario, the talk right release request identifier is used to indicate that the re-INVITE message is for a talk right release request, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the called terminal. The session description protocol is used to define the media stream direction of the called terminal, and in this implementation scenario, the called terminal applies for releasing the talk right, so in the session description protocol, the media stream direction of the called terminal is inactive.

S1007: the calling home core network TCF sends a 100trying temporary response message to the called home core network TCF.

S1008: and the calling home core network TCF releases the called terminal speaking right.

In a specific implementation scenario, after receiving the re-INVITE message, the TCF determines, according to the content of the re-INVITE message, that the called terminal applies for releasing the talk right, and then releases the talk right of the called terminal.

S1009: the calling home core network TCF sends a 200OK message to the called core network TCF.

The calling home core network TCF sends a 200OK message to the called home core network TCF to inform the called home core network TCF that the speaking right of the called terminal is released, so that the called home core network TCF can inform the called terminal that the speaking right is released.

In this implementation scenario, the 200OK message further includes a session protocol, where the session protocol is used to define the direction of the media stream of the calling terminal, and in this implementation scenario, the calling terminal does not occupy the talk right and the called terminal applies for releasing the talk right, so that in the session protocol, the direction of the media stream of the calling terminal is defined as inactive.

S1010: and the calling home core network TCF receives the ACK message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the 200OK message and notifying the called terminal that the talk right is released, the TCF sends an ACK message to the TCF, so as to notify the TCF to which the calling terminal knows that the called terminal has been granted the talk right. After receiving the ACK message, the TCF confirms that the called terminal knows that its talk right is released.

It can be known from the above description that, when the speech right is in the idle state, if the called terminal proposes the speech right application, the calling home core network TCF grants the speech right to the called terminal, and when the called terminal occupies the speech right, if the called terminal proposes the speech right release, the calling home core network TCF releases the speech right of the called terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 11, fig. 11 is a schematic flow chart of an eleventh embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method includes:

s1101: and the calling home core network TCF grants the calling terminal the speaking right.

In this implementation scenario, when the calling terminal needs to acquire the talk right, it sends a talk right application request to a TCF (trunked control Function), and after receiving the talk right application request, the TCF responds to the talk right application request and grants the talk right of the calling terminal.

S1102: and the calling home core network TCF sends a re-INVITE message to the called home core network TCF.

In a specific implementation scenario, the calling home core network TCF sends a re-INVITE message to the called home core network TCF, where the re-INVITE message includes a session right application notification identifier, a global session identifier, and a session description protocol.

In this implementation scenario, the talk right application notification identifier is used to indicate that the re-INVITE message is used for the talk right application notification, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the calling terminal. The session description protocol is used to define the media stream direction of the calling terminal, and in this implementation scenario, the calling terminal applies for the talk right, so in the session description protocol, the media stream direction of the calling terminal is the sending-only direction.

S1103: the calling home core network TCF receives a 100trying temporary response message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the re-INVITE message sent by the calling home core network TCF, the called home core network TCF sends a 100trying temporary response message to the calling home core network TCF, so as to notify that the re-INVITE message of the calling home core network TCF has been successfully received.

S1104: and the calling home core network TCF receives the 200OK message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the re-INVITE message, the TCF reads the content thereof, notifies the called terminal that the calling terminal is granted the talk right, and sends a 200OK message to the TCF to notify the TCF that the TCF has notified the called terminal that the calling terminal is granted the talk right.

In this implementation scenario, the 200OK message further includes a session protocol, where the session protocol is used to define the direction of the media stream of the calling terminal, and in this implementation scenario, the calling terminal applies for the right of speech, so in the session protocol, the media stream direction of the calling terminal is defined as the sending-only direction.

S1105: and the calling home core network TCF sends an ACK message to the called home core network TCF.

In a specific implementation scenario, after receiving the 200OK message, the calling home core network TCF sends an ACK message to the called home core network TCF to notify the called home core network TCF200OK that the message is received. In this implementation scenario, after receiving the ACK message, the TCF confirms that the called terminal knows that the calling terminal is granted the talk right.

1106: and the TCF of the calling home core network releases the speaking right of the calling terminal.

In a specific implementation scenario, after the TCF grants the talk right of the calling terminal, the calling terminal needs to release the talk right. The calling terminal makes a speaking right release request to the calling home core network TCF, and the calling home core network TCF responds to the speaking right release request to release the speaking right of the calling terminal.

S1107: and the calling home core network TCF sends a re-INVITE message to the called home core network TCF.

In a specific implementation scenario, the TCF responds to the talk right release request to release the talk right of the calling terminal, and sends a re-INVITE message to the TCF, so that the TCF notifies the called terminal that the talk right of the calling terminal is released. The re-INVITE message includes a talk burst release notification flag, a global session flag, and a session description protocol.

In this implementation scenario, the talk right release notification identifier is used to indicate that the re-INVITE message is used for the talk right release notification, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the calling terminal. The session description protocol is used to define the media stream direction of the calling terminal, and in this implementation scenario, the calling terminal applies for releasing the talk right, so in the session description protocol, the media stream direction of the calling terminal is inactive.

S1108: the calling home core network TCF receives a 100trying temporary response message sent by the called home core network TCF.

S1109: and the calling home core network TCF receives the 200OK message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the re-INVITE message, the TCF reads the content thereof, notifies the called terminal that the calling terminal is released from the talk right, and sends a 200OK message to the TCF to notify the TCF that the TCF has notified the called terminal that the calling terminal is released from the talk right.

In this implementation scenario, the 200OK message further includes a session protocol, where the session protocol is used to define the direction of the media stream of the calling terminal, and in this implementation scenario, the calling terminal applies for releasing the talk right, so that in the session protocol, the media stream direction of the calling terminal is defined as inactive.

S1110: and the calling home core network TCF sends an ACK message to the called home core network TCF.

In a specific implementation scenario, after receiving the 200OK message, the calling home core network TCF sends an ACK message to the called home core network TCF to notify the called home core network TCF200OK that the message is received. In this implementation scenario, after receiving the ACK message, the TCF confirms that the called terminal knows that the calling terminal is released.

It can be known from the above description that, when the speech right is in the idle state, if the calling terminal proposes the speech right application, the calling home core network TCF grants the speech right to the calling terminal, and when the calling terminal occupies the speech right, if the calling terminal proposes the speech right release, the calling home core network TCF releases the speech right of the calling terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 12, fig. 12 is a schematic flowchart of a twelfth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method includes:

s1201: and the calling home core network TCF receives a re-INVITE message sent by the called home core network TCF.

S1202: the calling home core network TCF sends a 100trying temporary response message to the called home core network TCF.

In this implementation scenario, steps S1201 to S1202 provided in this embodiment are substantially similar to steps S1001 to S1002 in the tenth embodiment of the half-duplex single-call right management method provided in the present invention, and are not described herein again.

S1203: and the TCF judges that the speaking right priority of the called terminal is higher than that of the calling terminal, grants the speaking right of the called terminal and releases the speaking right of the calling terminal.

In a specific implementation scenario, the re-INVITE message received by the TCF in step S1201 includes the priority of the talk right of the called terminal, and the TCF acquires the priority of the talk right of the calling terminal, compares the priority of the talk right of the called terminal with the priority of the talk right of the calling terminal, and determines whether the priority of the talk right of the called terminal is higher than the priority of the talk right of the calling terminal. If the speaking right priority of the called terminal is higher than that of the calling terminal, the TCF releases the speaking right of the calling terminal and grants the speaking right of the called terminal.

S1204: the calling home core network TCF sends a 200OK message to the called core network TCF.

S1205: and the calling home core network TCF receives the ACK message sent by the called home core network TCF.

In this implementation scenario, steps S1204 to S1205 provided in this embodiment are substantially similar to steps S1004 to S1005 in the tenth embodiment of the half-duplex single-call right management method provided in the present invention, and are not described herein again.

As can be seen from the above description, in this embodiment, when the talk right is occupied by the calling terminal, if the called terminal submits the talk right application, and the TCF determines that the talk right of the called terminal is higher than the talk right of the calling terminal, the talk right is granted to the called terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 13, fig. 13 is a schematic flow chart of a thirteenth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method includes:

s1301: and the TCF judges that the speaking right priority of the called terminal is lower than or equal to that of the calling terminal, grants the speaking right of the calling terminal and releases the speaking right of the called terminal.

In a specific implementation scenario, a called terminal occupies a speech right, when the calling terminal needs to acquire the speech right, a speech right application request is sent to a calling home core network TCF (trunk Control Function), after receiving the speech right application request, the calling home core network TCF acquires the speech right priority of the called terminal and compares the speech right priority of the calling terminal with the speech right priority of the called terminal, and if the speech right priority of the called terminal is lower than or equal to the speech right priority of the calling terminal, grants the speech right of the calling terminal and releases the speech right of the called terminal.

S1302: and the calling home core network TCF sends a re-INVITE message to the called home core network TCF.

In a specific implementation scenario, the calling home core network TCF sends a re-INVITE message to the called home core network TCF, where the re-INVITE message includes a talk right release notification identifier, a global session identifier, and a session description protocol.

In this implementation scenario, the talk right application notification identifier is used to indicate that the re-INVITE message is used for the talk right release notification, and the global session identifier is a common identifier of the calling terminal, the called terminal, the calling home core network TCF, and the called home core network TCF participating in the current session, and is used to indicate the calling terminal, the calling home core network TCF, and the called home core network TCF corresponding to the calling terminal. The session description protocol is used to define the media stream direction of the calling terminal, and in this implementation scenario, the calling terminal applies for the talk right, so in the session description protocol, the media stream direction of the calling terminal is the sending-only direction.

S1303: the calling home core network TCF receives a 100trying temporary response message sent by the called home core network TCF.

S1304: and the calling home core network TCF receives the 200OK message sent by the called home core network TCF.

S1305: and the calling home core network TCF sends an ACK message to the called home core network TCF.

In this implementation scenario, steps S1303 to S1305 provided in this embodiment are substantially similar to steps S1103 to S1105 in the eleventh embodiment of the half-duplex single-call right management method provided in this invention, and are not described here again.

As can be seen from the above description, in this embodiment, when the talk right is occupied by the called terminal, if the calling terminal submits the talk right application, and the TCF of the calling home core network determines that the talk right of the called party is higher than the talk right of the called terminal, the talk right is granted to the calling terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 14, fig. 14 is a schematic flow chart of a fourteenth embodiment of a half-duplex single-call right management method according to the present invention, where the half-duplex single-call right management method includes:

s1401: and the calling home core network TCF receives a re-INVITE message sent by the called home core network TCF.

S1402: the calling home core network TCF sends a 100trying temporary response message to the called home core network TCF.

In this implementation scenario, steps S1401 to S1402 provided in this embodiment are substantially similar to steps S1001 to S1002 in the tenth embodiment of the half-duplex single-call right management method provided in the present invention, and are not described herein again.

S1403: and the TCF judges that the speaking right priority of the called terminal is lower than or equal to that of the calling terminal, and rejects the speaking right application of the called terminal.

In a specific implementation scenario, the re-INVITE message received by the calling home core network TCF in step S1401 includes the talk right priority of the called terminal, and the calling home core network TCF obtains the talk right priority of the calling terminal, compares the talk right priority of the called terminal with the talk right priority of the calling terminal, and determines whether the talk right priority of the called terminal is higher than the talk right priority of the calling terminal. If the speaking right priority of the called terminal is lower than or equal to the speaking right priority of the calling terminal, the calling attributive core network TCF refuses to grant the speaking right of the called terminal.

S1404: and the calling home core network TCF sends a 4XX/5XX/6XX message to the called home core network TCF.

In a specific implementation scenario, the calling home core network TCF sends a denial authorization message to the called home core network TCF, where the denial authorization message includes a 4XX/5XX/6XX message, such as a 603Decline message, and the content of the denial authorization message is determined according to an actual situation.

S1405: and the calling home core network TCF receives the ACK message sent by the called home core network TCF.

In a specific implementation scenario, after receiving the 4XX/5XX/6XX message and notifying the called terminal that it has been denied the talk right, the called home core network TCF sends an ACK message to the calling home TCF to notify the calling home TCF that the called terminal has been made aware that it has been denied the talk right. After receiving the ACK message, the TCF confirms that the called terminal knows that it has been denied the right to speak.

As can be seen from the above description, in this embodiment, when the talk right is occupied by the calling terminal, if the called terminal submits the talk right application, and the TCF determines that the talk right of the called terminal is lower than or equal to the talk right of the calling terminal, the TCF refuses to grant the talk right of the called terminal. Therefore, the speech right management rule of the cross-core network half-duplex single-call service is defined and realized, the speech right preemption success rate is improved, and the service interconnection and intercommunication failure is avoided.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a core network cluster control function according to the present invention. The core network cluster control function 10 comprises a processor 11, a memory 12 and a communication circuit 13, the processor 11 being coupled to the memory 12 and the communication circuit 13, the memory being configured to store program instructions, the processor and the communication circuit being configured to execute the program instructions stored by the memory to implement the method as follows.

When a first terminal and a second terminal belong to different core networks respectively, a communication circuit 13 of a core network cluster control function 10 receives a first message, wherein the first message comprises a speaking right priority of the first terminal, and the first message is used for requesting to grant a speaking right of the first terminal; the processor 11 determines whether the talk right is in an idle state, if the processor 11 determines that the talk right is in the idle state, the core network cluster control function 10 grants the talk right of the first terminal, and the communication circuit 13 notifies the first terminal and/or a second terminal having a session with the first terminal that the first terminal is granted the talk right. If the processor 11 determines that the speaking right does not belong to the idle state, it is further determined whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal. If the processor 11 determines that the talk right priority of the first terminal is higher than the talk right priority of the second terminal, the core network cluster control function 10 releases the talk right of the second terminal and grants the talk right of the first terminal, and the communication circuit 13 notifies the first terminal and/or the second terminal having a conversation with the first terminal that the first terminal is granted the talk right. If the processor 11 determines that the speaking right priority of the first terminal is lower than or equal to the speaking right priority of the second terminal, the core network cluster control function 10 refuses to grant the speaking right of the first terminal, and the communication circuit 13 informs the first terminal and/or the second terminal having a conversation with the first terminal that the first terminal is refused to grant the speaking right.

In addition, the communication circuit 13 receives a second message, where the second message is used to apply for releasing the talk right of the first terminal; the core network cluster control function 10 releases the talk right of the first terminal, and the communication circuit 13 informs the first terminal and/or the second terminal that the talk right of the first terminal is released.

As can be seen from the above description, in this embodiment, the core network cluster control function determines whether to execute the speech right application and the speech right release application provided by the terminal according to the preset rules for granting the speech right and releasing the speech right, so as to define and implement the speech right management rule of the cross-core network half-duplex single-call service, improve the success rate of speech right preemption, and avoid the failure of service interconnection and interworking.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a device with a storage function according to the present invention. The means 20 with memory function has stored therein at least one program instruction 21, the program instruction 21 being for performing the method as shown in fig. 1-14. In one embodiment, the apparatus with storage function may be a storage chip in a terminal, a hard disk, or a removable hard disk or other readable and writable storage tool such as a flash disk, an optical disk, or the like, and may also be a server or the like.

As can be seen from the above description, the program stored in the embodiment of the apparatus with storage function of the present invention can perform talk right management in a cross-core network half-duplex single call service, thereby increasing the success rate of talk right preemption and avoiding service interconnection and interworking failure.

Different from the problem of interconnection and intercommunication of half-duplex single call service across a core network caused by no provision of half-duplex single call flow in the prior art, the half-duplex single call right management method provided by the invention can define a call right management control rule, acquire priority information of a user terminal, perform call right preemption according to the priority information, improve the success rate of call right preemption and avoid service interconnection and intercommunication failure.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A half-duplex single call right management method, comprising:

a cluster control function body of a first core network receives a first message, wherein the first message comprises a speaking right priority of a first terminal, and the first message is used for requesting to grant the speaking right of the first terminal;

judging whether the speaking right is in an idle state, if so, granting the speaking right of the first terminal, and informing the first terminal and/or a second terminal conversing with the first terminal that the speaking right of the first terminal is granted;

if the speaking right does not belong to the idle state, judging whether the speaking right priority of the first terminal is higher than the speaking right priority of the second terminal;

if the speaking right priority of the first terminal is higher than that of the second terminal, releasing the speaking right of the second terminal, granting the speaking right of the first terminal, and informing the first terminal and/or a second terminal in conversation with the first terminal that the first terminal is granted the speaking right;

wherein the first terminal and the second terminal respectively belong to different core networks.

2. The method of claim 1, further comprising:

and if the speaking right priority of the first terminal is lower than or equal to the speaking right priority of the second terminal, refusing to grant the speaking right of the first terminal, and informing the first terminal and/or the second terminal in conversation with the first terminal that the first terminal is refused to grant the speaking right.

3. The method of claim 1, further comprising:

receiving a second message, wherein the second message is used for applying for releasing the speaking right of the first terminal;

and releasing the speaking right of the first terminal, and informing the first terminal and/or the second terminal that the speaking right of the first terminal is released.

4. The method according to any of claims 1-3, wherein the first terminal belongs to a second core network, and the second terminal belongs to the first core network;

the first message is generated by the cluster control function of the second core network in response to the speaking right application request of the first terminal and is sent to the cluster control function of the first core network;

the notifying the first terminal and/or a second terminal having a session with the first terminal that the first terminal is granted a talk right includes:

sending a first success message to the cluster control function body of the second core network, so that the cluster control function body of the second core network informs the first terminal that the first terminal is granted the talk right;

the notifying the first terminal and/or a second terminal having a session with the first terminal that the first terminal is denied a talk right includes:

sending a first authorization rejection message to the trunking control function of the second core network, so that the trunking control function of the second core network notifies the first terminal that the first terminal is denied the right of speaking;

the second message is generated by the trunking control function of the second core network in response to the talk burst release request of the first terminal and is sent to the trunking control function of the first core network;

the notifying the first terminal and/or the second terminal that the first terminal is released from the talk right includes:

and sending a second success message to the cluster control function of the second core network, so that the cluster control function of the second core network informs the first terminal of the release of the talk right.

5. The method of claim 4, wherein after receiving the first message, the cluster control function of the first core network comprises:

sending a first temporary response message to the cluster control function of the second core network to notify the cluster control function of the second core network that the first message is successfully received;

after the sending the first success message to the trunking control function of the second core network/sending the first authorization rejection message to the trunking control function of the second core network, the method includes:

and receiving a first confirmation message sent by the trunking control function body of the second core network, wherein the first confirmation message is sent after the trunking control function body of the second core network notifies the first terminal of being granted the talk right/refusing to grant the talk right.

6. The method of claim 4,

the first message also comprises a speaking right application request identifier, a global session identifier and a first session description protocol, wherein the first session description protocol defines the media stream direction of the first terminal as a sending-only direction;

the first successful message comprises a second session description protocol, and the media stream direction of the second terminal is defined as a receiving-only direction in the second session description protocol.

7. The method of claim 4,

after receiving the second message, the method includes:

sending a second temporary response message to the trunking control function of the second core network to notify the trunking control function of the second home core network that the second message has been successfully received;

after sending the second success message to the cluster control function of the second core network, the method includes:

and receiving a second confirmation message sent by the trunking control function of the second core network, where the second confirmation message is sent after the trunking control function of the second core network notifies the first terminal that the talk right of the first terminal is released.

8. The method of claim 7, wherein the second message comprises: a speaking right release request identifier, a global session identifier and a third session description protocol, wherein the third session description protocol defines the media stream direction of the first terminal as inactive;

the second success message includes: a fourth session description protocol, which defines the media stream direction of the second terminal as inactive.

9. The method according to any of claims 1-3, wherein the first terminal belongs to a first core network and the second terminal belongs to the second core network;

the first message is a speaking right application request sent by the first terminal to a cluster control function body of the first core network;

sending an authorization notification message to the trunking control function of the second core network, so that the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right;

receiving a third success message sent by the trunking control function of the second core network, where the third success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is granted the talk right;

sending a second authorization rejection message to the trunking control function of the second core network, so that the trunking control function of the second core network notifies the second terminal that the first terminal is denied the right of speaking;

the second message is a talk right release request sent by the first terminal to the trunking control function of the first core network;

sending a talk right release message to the cluster control function of the second core network, so that the cluster control function of the second core network notifies the second terminal that the talk right of the first terminal is released;

and receiving a fourth success message sent by the trunking control function of the second core network, where the fourth success message is sent after the trunking control function of the second core network notifies the second terminal that the first terminal is released.

10. The method of claim 9,

after sending the authorization notification message to the cluster control function of the second core network, the method includes:

receiving a third temporary response message sent by the trunking control function of the second core network, where the third temporary response message is used to notify the trunking control function of the first core network that the authorization notification message is successfully received;

after receiving the third successful message sent by the cluster control function of the second core network, the method includes:

and sending a third confirmation message to the cluster control function of the second core network to inform the cluster control function of the second core network that the third success message is successfully received.

11. The method of claim 9,

the authorization notification message includes: a speaking right application notification identifier, a global call identifier and a fifth session description protocol, wherein the fifth session description protocol defines the media stream direction of the first terminal as a sending-only direction;

the third success message includes: a sixth session description protocol that defines a media stream direction of the second terminal as a receive-only direction.

12. The method of claim 9,

after sending the talk burst release message to the trunking control function of the second core network, the method includes:

receiving a fourth temporary response message sent by the trunking control function of the second core network, where the fourth temporary response message is sent by the trunking control function of the second core network to notify that the talk burst release has been successfully received;

after receiving the fourth successful message sent by the cluster control function of the second core network, the method includes:

and sending a fourth confirmation message to the cluster control function of the second core network to notify the cluster control function of the second core network that the fourth success message is successfully received.

13. The method of claim 12,

the talk burst release message includes: a speaking right release notification identifier, a global session identifier and a seventh session description protocol, wherein the seventh session description protocol defines that the media stream direction of the first terminal is inactive;

the fourth successful message comprises: an eighth session description protocol, which defines a media stream direction of the second terminal as inactive.

14. A cluster control function of a core network, comprising: a processor, a memory, a communication circuit, the processor coupled to the memory and the communication circuit;

wherein the memory is for storing program instructions for implementing the method of any one of claims 1-13;

the processor and the communication circuitry are configured to execute program instructions stored by the memory to implement the method of any of claims 1-13.

15. An apparatus having storage functionality, wherein program instructions are stored, which program instructions are executable to implement the steps in the method according to any one of claims 1 to 13.