CN113133130B

CN113133130B - Communication method and device

Info

Publication number: CN113133130B
Application number: CN201911401945.3A
Authority: CN
Inventors: 周志宏; 范晨; 袁乃华; 陈迎; 强婕; 郑岚
Original assignee: Chengdu TD Tech Ltd
Current assignee: Chengdu TD Tech Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2022-05-20
Anticipated expiration: 2039-12-30
Also published as: CN113133130A

Abstract

The embodiment of the application provides a communication method and a communication device, wherein the method comprises the following steps: the G-TCF equipment sends first information to the first gateway TCF equipment through the second communication link, and the first gateway TCF equipment distributes the first information to the second gateway TCF equipment and the subnet TCF equipment under the first gateway through the third communication link and the fourth communication link. And the second gateway TCF equipment distributes the first information to the subnet TCF equipment under the second gateway through a fifth communication link. The first information only needs to be sent once between the G-TCF equipment and the first gateway office TCF equipment and between the first gateway office TCF equipment and the second gateway office TCF equipment, so that the number of times of information sending is reduced, and the information sending efficiency is improved. Also, the number of communication links for transmitting information is reduced, thereby avoiding waste of communication resources.

Description

Communication method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a communication method and device.

Background

In the B-TrunC standard, when multiple subnetworks are networked with each other, as shown in fig. 1, a gateway needs to be introduced. In the networking scenario shown in fig. 1, when a group is established, according to the B-TrunC standard, a group-cluster control function TCF (G-TCF) device needs to know subnets where all user terminals in the group are located, and establishes a related group resource by sending a message to each subnet.

For the networking scenario shown in fig. 1, for example, when a user in the subnet 11, the subnet 12, the subnet 21, and the subnet 23 establishes a group, the subnet 11 is a group home, and when the subnet 11 interacts with the subnet 21 and the subnet 23, the TCF device of the subnet 11 sends data to the gateway 2 through the gateway 1, the gateway 2 sends data to the subnet 21, the TCF device of the subnet 11 sends data to the gateway 2 through the gateway 1 again, and the gateway 2 sends data to the subnet 22. Therefore, gateway 1 needs to send data twice to gateway 2. That is, when sending data to N subnets under the gateway 2, the TCT device of the subnet 11 needs to send data to the gateway 2N times through the gateway 1, resulting in repeated sending of data.

Therefore, when data interaction is performed between subnets located under different gateway offices, the problem of repeated transmission of data between the gateway offices exists, and the efficiency of data transmission in a group is affected.

Disclosure of Invention

The embodiment of the application provides a communication method and device, so that the number of times of information sending in a group is reduced, and the information sending efficiency is improved.

In a first aspect, an embodiment of the present application provides a communication method applied to a group-cluster control function TCF (G-TCF), where the method includes:

a group-cluster control function TCF (G-TCF) device receives first information sent by a first terminal device, wherein the first information is information sent by the first terminal device to other terminal devices in a target group, a subnet to which the terminal device in the target group belongs includes a subnet in which the first terminal device is located, a first subnet, a second subnet and a third subnet, the first subnet and the second subnet belong to a first gateway office, the first subnet TCF device is directly connected with the G-TCF device, the second subnet TCF device is not directly connected with the G-TCF device, the first gateway office TCF device is directly connected with the G-TCF device, the third subnet belongs to a second gateway office, and the second gateway office TCF device is not directly connected with the G-TCF device;

the G-TCF device sends the first information to the first subnet TCF device through a first communication link and to the first gateway TCF device through a second communication link, the first communication link is a communication link established according to the first signaling, and the first signaling includes identification information of the first subnet TCF device; the second communication link is a communication link established according to a second signaling, and the second signaling includes identification information of the second subnet TCF device and identification information of the third subnet TCF device.

Optionally, before the G-TCF device sends the first information to the first gateway office TCF device through the second communication link, the method further includes:

and the G-TCF equipment sends the first signaling to the first subnet TCF equipment and sends the second signaling to the first gateway TCF equipment, wherein the first signaling is used for indicating the establishment of the first communication link, and the second signaling is used for indicating the establishment of the second communication link.

Optionally, the method further includes:

the G-TCF equipment receives a group joining request signaling from a fifth subnet TCF equipment, the group joining request signaling is generated by the fifth subnet TCF equipment according to a received signaling of requesting to join the target group from a second terminal equipment, the group joining request signaling is used for indicating the second terminal equipment to request to join the target group, and the group joining request signaling comprises identification information of the fifth subnet TCF equipment;

the G-TCF device sends a sixth signaling to the first gateway office TCF device according to the group join request signaling, where the sixth signaling includes identification information of the fifth subnet TCF device, the sixth signaling is used to instruct the first gateway office TCF device to send a seventh signaling to the gateway office TCF device to which the fifth subnet belongs, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the gateway office TCF device to which the fifth subnet belongs and the fifth subnet TCF device.

In a second aspect, an embodiment of the present application provides a communication method, which is applied to a first gateway office TCF device, and the method includes:

the first gateway office TCF equipment receives first information from the G-TCF equipment through a second communication link, wherein the first information is information sent to other terminal equipment by first terminal equipment in a target group;

the first gateway office TCF equipment distributes the first information to second gateway office TCF equipment through a third communication link and distributes the first information to second subnet TCF equipment through a fourth communication link; the third signaling is a communication link established according to a third signaling, the third signaling includes identification information of a third subnet TCF device, the fourth signaling is a communication link established according to a fourth signaling, and the fourth signaling includes identification information of a second subnet TCF device.

Optionally, before the first gateway office TCF device distributes the first information to the second gateway office TCF device through the third communication link and distributes the first information to the second subnet TCF device through the fourth communication link, the method further includes:

the first gateway office TCF equipment receives a second signaling from the G-TCF equipment;

and the first gateway office TCF equipment sends the third signaling to the second gateway office TCF equipment according to the second signaling, and sends the fourth signaling to the second subnet TCF equipment.

Optionally, the method further includes:

the first gateway office TCF device receives a sixth signaling from the G-TCF device, where the sixth signaling includes identification information of a fifth subnet TCF device, the fifth subnet is a subnet to which a second terminal device belongs, the second terminal device is a terminal device that requests to join a target group, the sixth signaling is used to instruct the first gateway office TCF device to send a seventh signaling to the second gateway office TCF device, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct establishment of a communication link between the second gateway office TCF device and the fifth subnet TCF device;

and the first gateway office TCF equipment sends a seventh signaling to the second gateway office TCF equipment according to the sixth signaling.

In a third aspect, an embodiment of the present application provides a communication method, which is applied to a second gateway office TCF device, where the method includes:

the second gateway office TCF equipment receives first information from the first gateway office TCF equipment through a third communication link;

and the second gateway office TCF equipment sends the first information to third subnet TCF equipment through a fifth communication link, wherein the fifth communication link is a communication link established according to a fifth signaling, and the fifth signaling comprises the identification information of the third subnet TCF equipment.

Optionally, before the second gateway office TCF device sends the first information to the third subnet TCF device through the fifth communication link according to the first information, the method further includes:

the second gateway office TCF equipment receives a third signaling sent by the first gateway office TCF equipment;

and the second gateway office TCF equipment sends a fifth signaling to the third subnet TCF equipment according to the third signaling.

Optionally, the method further includes:

the second gateway office TCF device receives a seventh signaling sent by the first gateway office TCF device, where the seventh signaling includes identification information of a fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device;

the second gateway office TCF equipment sends an eighth signaling to fifth subnet TCF equipment according to the seventh signaling;

and the second gateway office TCF equipment sends the first information to second terminal equipment through a communication link between the second gateway office TCF equipment and the fifth subnet TCF equipment.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including:

the receiving module is used for receiving first information sent by first terminal equipment, wherein the first information is information sent by the first terminal equipment to other terminal equipment in a target group, a subnet to which the terminal equipment in the target group belongs comprises a subnet in which the first terminal equipment is located, a first subnet, a second subnet and a third subnet, the first subnet and the second subnet belong to a first gateway office, the first subnet TCF equipment is directly connected with the G-TCF equipment, the second subnet TCF equipment is not directly connected with the G-TCF equipment, the first gateway office TCF equipment is directly connected with the G-TCF equipment, the third subnet belongs to a second gateway office, and the second gateway office TCF equipment is not directly connected with the G-TCF equipment;

a sending module, configured to send the first information to the first subnet TCF device through a first communication link and to the first gateway TCF device through a second communication link, where the first communication link is a communication link established according to the first signaling, and the first signaling includes identification information of the first subnet TCF device; the second communication link is a communication link established according to a second signaling, and the second signaling includes identification information of the second subnet TCF device and identification information of the third subnet TCF device.

Optionally, the sending module is further configured to send the first signaling to the first subnet TCF device, and send the second signaling to the first gateway TCF device, where the first signaling is used to indicate that the first communication link is established, and the second signaling is used to indicate that the second communication link is established.

Optionally, the receiving module is further configured to receive a group join request signaling from a fifth subnet TCF device, where the group join request signaling is generated by the fifth subnet TCF device according to a received signaling that requests to join the target group from a second terminal device, the group join request signaling is used to indicate that the second terminal device requests to join the target group, and the group join request signaling includes identification information of the fifth subnet TCF device;

the sending module is further configured to send a sixth signaling to the first gateway office TCF device according to the group join request signaling, where the sixth signaling includes identification information of the fifth subnet TCF device, the sixth signaling is used to instruct the first gateway office TCF device to send a seventh signaling to the gateway office TCF device to which the fifth subnet belongs, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the gateway office TCF device to which the fifth subnet belongs to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct establishment of a communication link between the gateway office TCF device to which the fifth subnet belongs and the fifth subnet TCF device.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which is applied to a first gateway office TCF device, where the apparatus includes:

the receiving module is used for receiving first information from the G-TCF equipment through a second communication link, wherein the first information is information sent to other terminal equipment by first terminal equipment in a target group;

the sending module is used for distributing the first information to second gateway bureau TCF equipment through a third communication link and distributing the first information to second subnet TCF equipment through a fourth communication link; the third signaling is a communication link established according to a third signaling, the third signaling includes identification information of the third subnet TCF device, the fourth signaling is a communication link established according to a fourth signaling, and the fourth signaling includes identification information of the second subnet TCF device.

Optionally, the receiving module is further configured to receive a second signaling from the G-TCF device;

the sending module is further configured to send the third signaling to the second gateway office TCF device according to the second signaling, and send the fourth signaling to the second subnet TCF device.

Optionally, the receiving module is further configured to receive a sixth signaling from the G-TCF device, where the sixth signaling includes identification information of a fifth subnet TCF device, the fifth subnet is a subnet to which a second terminal device belongs, the second terminal device is a terminal device that requests to join a target group, the sixth signaling is used to instruct the first gateway TCF device to send a seventh signaling to the second gateway TCF device, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway TCF device and the fifth subnet TCF device;

the sending module is further configured to send a seventh signaling to the second gateway office TCF device according to the sixth signaling.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, which is applied to a second gateway office TCF device, where the apparatus includes:

a receiving module, configured to receive first information from a first gateway office TCF device through a third communication link;

a sending module, configured to send, by the second gateway office TCF device, the first information to a third subnet TCF device through a fifth communication link, where the fifth communication link is a communication link established according to a fifth signaling, and the fifth signaling includes identification information of the third subnet TCF device.

Optionally, the second receiving module is further configured to receive a third signaling sent by the first gateway office TCF device;

the sending module is further configured to send a fifth signaling to the third subnet TCF device according to the third signaling.

Optionally, the receiving module is further configured to receive a seventh signaling sent by the first gateway office TCF device, where the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device;

the sending module is further configured to send an eighth signaling to a fifth subnet TCF device according to the seventh signaling; and the second gateway office TCF equipment sends the first information to second terminal equipment through a communication link between the second gateway office TCF equipment and the fifth subnet TCF equipment.

In a seventh aspect, an embodiment of the present application provides an electronic device, including: at least one processor and memory;

the memory stores computer-executable instructions; the at least one processor executes computer-executable instructions stored by the memory to perform the method of any of the first, second, or third aspects of the embodiments of the present application.

In an eighth aspect, the present application provides a computer-readable storage medium, in which program instructions are stored, and when executed by a processor, the program instructions implement the method of any one of the first aspect, the second aspect, or the third aspect of the embodiments of the present invention.

In a ninth aspect, the present application provides a program product, where the program product includes a computer program, the computer program is stored in a readable storage medium, and the computer program can be read by at least one processor of an electronic device from the readable storage medium, and the computer program is executed by the at least one processor to enable the electronic device to implement the method according to any one of the first aspect, the second aspect, or the third aspect of the embodiments of the present application.

The embodiment of the application provides a communication method and device, wherein first information is sent to first gateway office TCF equipment through a G-TCF equipment through a second communication link, and the first gateway office TCF equipment distributes the first information to the second gateway office TCF equipment and subnet TCF equipment under the first gateway office through a third communication link and a fourth communication link. And the second gateway TCF equipment distributes the first information to the subnet TCF equipment under the second gateway through a fifth communication link. The first information is only required to be sent once between the G-TCF equipment and the first gateway office TCF equipment and between the first gateway office TCF equipment and the second gateway office TCF equipment, so that the number of information sending times is reduced, and the information sending efficiency is improved. And, the number of communication links for transmitting information is reduced, thereby avoiding waste of communication resources.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a networking scenario provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a networking scenario provided in another embodiment of the present application;

fig. 3 is a flowchart of a communication method according to an embodiment of the present application;

fig. 4 is a flowchart of a communication method according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a networking scenario provided by another embodiment of the present application;

fig. 6 is a flowchart of a communication method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a networking scenario provided by another embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to another embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device according to another embodiment of the present application;

fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 12 is a block diagram for a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the B-Trunc system, any terminal equipment registered under G-TCF equipment initiates a group calling request to the G-TCF equipment to request to establish a group. The terminal equipment which initiates the group call request to the G-TCF equipment is marked as first terminal equipment. The G-TCF equipment judges whether the first terminal equipment has the authority of establishing the group or not, if the first terminal equipment has the authority of establishing the group, a response message is replied to the first terminal equipment to inform the first terminal equipment that the group can be established, wherein the group established by the first terminal equipment is called a target group. After the target group is established, the first terminal device sends first information to be sent to other terminal devices in the target group to the G-TCF device.

The target group established by the first terminal device may include a plurality of subnets, and the subnets may be located in different gateway offices, or the same gateway office, or one gateway office includes at least two subnets, which is not limited in this application. The target group established by the first terminal device may be, for example, the target group shown in fig. 2, as shown in fig. 2, the target group includes a subnet where the first terminal device is located, a first subnet 11, a second subnet 12, and a third subnet 13. The first subnet 11 and the second subnet 12 are located in the first gateway office 21, the third subnet 13 is located in the second gateway office 22, the subnet where the first terminal device is located may be located under the first gateway office 21 or the second gateway office 22 or other gateway offices, and fig. 2 shows that the subnet where the first terminal device is located in the second gateway office 22.

In the B-TrunC system, the terminal devices under each subnet are managed and scheduled by the TCF device, that is, the first subnet TCF device, the second subnet TCF device, and the third subnet TCF device are respectively used for managing the terminal devices in the first subnet, the terminal devices in the second subnet, and the terminal devices in the third subnet. The gateway office TCF device is used for managing the TCF device of the sub-network under the gateway office, the first gateway office TCF device is used for managing and scheduling the first sub-network TCF device and the second sub-network TCF device, and the second gateway office TCF device is used for managing and scheduling the third sub-network TCF device. It should be noted that, if there are other subnets under the first gateway, the TCF device of the first gateway is also used to manage and schedule TCF devices of other subnets, and the TCF device of the second gateway is similar to the above.

After networking, the G-TCF device determines that, in fig. 2, the G-TCF device is also a fourth subnet TCF device, which is a subnet under the first gateway and is directly connected to the first subnet. Thus, the first subnet TCF device is directly connected to the G-TCF device. And the second sub-network TCF equipment is not directly connected with the G-TCF equipment, the first gateway office TCF equipment is directly connected with the G-TCF equipment, and the second gateway office TCF equipment is not directly connected with the G-TCF equipment. The terminal device under the fourth subnet may be in the established group, or no terminal device is in the established group.

After the target group is established, as shown in fig. 2, when the first terminal device sends the first information to other terminal devices in the target group, the terminal device located under the subnet where the first terminal device is located does not need to transmit the first information through the G-TCF device. For the terminal equipment under the fourth subnet, the fourth subnet TCF equipment is the G-TCF equipment, so after the G-TCF equipment receives the first information, the G-TCF equipment directly distributes the first information to the terminal equipment under the subnet. For the terminal equipment located under the first subnet, the first subnet TCF equipment is directly connected with the G-TCF equipment, and after the G-TCF equipment receives the first information, the G-TCF equipment forwards the first information to the subnet TCF equipment corresponding to the subnet where the terminal equipment is located.

For the above-described case that the first information does not need to pass through the gateway TCF device when being transmitted, the method in the prior art may be adopted to transmit the first information, and the application is not limited thereto. For terminal devices that need to pass through the gateway TCF device to obtain the first information, for example, the terminal devices under the second subnet and the third subnet in fig. 2, the method for obtaining the first information is referred to in the embodiment of the present application.

Fig. 3 is a flowchart of a communication method according to an embodiment of the present application, and as shown in fig. 3, the method according to the embodiment may include:

s1011, after the target group is established, the G-TCF device sends the first signaling to the first subnet TCF device, and correspondingly, the first subnet TCF device receives the first signaling.

In this embodiment, as shown in fig. 2, after the target group is established, in the target group, the G-TCF device sends a first signaling to the first subnet TCF device to establish a communication link between the G-TCF device and the first subnet TCF device, which is denoted as a first communication link. The second communication link is used for the G-TCF device to transmit the first information to the first subnet TCF device. The first signaling includes identification information of the first subnet TCF device.

S1012, sending a second signaling to the first gateway office TCF device, and the corresponding first gateway office TCF device receiving the second signaling.

In this embodiment, as shown in fig. 2, after the target group is established, in the target group, the G-TCF device sends a second signaling to the first gateway office TCF device to establish a communication link between the G-TCF device and the first gateway office TCF device, which is denoted as a second communication link. The second communication link is used to transmit the first information. The second signaling includes identification information of the second subnet TCF device and identification information of the third subnet TCF device. If, in the networking scenario shown in fig. 2, the second gateway office further includes other subnets, and a terminal device under the subnet is located in the target group, the second signaling preferably includes identification information of the subnet TCF device corresponding to the subnet.

S102, the first gateway office TCF equipment sends a third signaling to the second gateway office TCF equipment, and correspondingly, the second gateway office TCF equipment receives the third signaling.

It should be noted that, in the embodiment of the present application, the execution sequence of S1011 and S1012 is not limited, and S1011 may be executed first, and then S1012 is executed, or S1012 is executed first, and then S1013 is executed, or both of them are executed simultaneously.

S103, the first gateway office TCF equipment sends a fourth signaling to the second subnet TCF equipment; accordingly, the second subnet TCF device receives the fourth signaling.

In this embodiment, after receiving the second signaling, the first gateway office TCF device obtains, according to the second signaling, the identification information of the subnet TCF device corresponding to the subnet located under the first gateway office 11 and the identification information of the subnet TCF device corresponding to the subnet located under another gateway office. Because the identification information of the subnet TCF device includes the identification information of the gateway TCF device corresponding thereto, the gateway TCF device for managing and scheduling the subnet TCF device can be determined by the identification information of the subnet TCF device. For example, if the identification information of the TCF device in the second gateway office is 22, the identification information of the TCF device in the subnet corresponding to the subnet under the second gateway office 22 is "22 xx", where "xx" is any number or letter or other identifier, and the identification information of the TCF device in the subnet corresponding to each subnet under the second gateway office 22 is unique and different from each other, for example, the identification information of the TCF device in the third subnet is 2201.

In fig. 2, the first gateway TCF device acquires, according to the second signaling, identification information of the second subnet TCF device located under the first gateway 11 and identification information of the third subnet TCF device located under the second gateway 22. And acquiring the identification information of the second gateway office TCF equipment through the identification information of the third subnet TCF equipment. Therefore, the first gateway office TCF device sends the third signaling to the second subnet TCF device, establishing the third communication link, and sends the fourth signaling to the second gateway office TCF device, establishing the fourth communication link. The third signaling includes identification information of the third subnet TCF device, and the fourth signaling includes identification information of the second subnet TCF device.

It should be noted that, in this embodiment of the application, the order in which the first gateway office TCF device sends the third signaling to the second gateway office TCF device and sends the fourth signaling to the second subnet TCF device is not limited.

And S104, the second gateway office TCF equipment sends a fifth signaling to the third subnet TCF equipment.

In this embodiment, after receiving the third signaling, according to the third signaling, the second gateway office TCF device obtains the identification information of the third subnet TCF device, and sends a fifth signaling to the third subnet 13, so as to establish a fifth communication link between the second gateway office TCF device and the third subnet TCF device.

After the communication link is established, the G-TCF device receives the first information sent by the first terminal device, and transmits the first information according to the established communication link.

S1051, G-TCF equipment transmits the signal to first subnet TCF equipment through a first communication link; accordingly, the first subnet TCF device receives the first information.

In this embodiment, the existing actual number may be referred to in the manner that the G-TCF device sends the first information release to the first subnet TCF device through the first communication link, and details are not described here again.

S1052, the G-TCF equipment sends first information to the TCF equipment of the first gateway office through a second communication link; correspondingly, the first gateway office TCF device receives the first information.

In this embodiment, the G-TCF device sends the first information to the first gateway office TCF device through the second communication link. In the target group, after receiving the information sent by the first terminal device, the G-TCF device sends the received information to the first gateway office TCF device through the second communication link.

S106, the first gateway office TCF equipment distributes the first information to the second gateway office TCF equipment through the third communication link, and correspondingly, the second gateway office TCF equipment receives the first information.

S107, the first gateway office TCF equipment distributes the first information to the second subnet TCF equipment through a fourth communication link; accordingly, the second subnet TCF device receives the first information.

In this embodiment, in S101, the first gateway office TCF device receives the second signaling, and acquires the identification information of the subnet TCF device located under the first gateway office 11 and the identification information of the other gateway office TCF devices corresponding to the second gateway office according to the second signaling. Therefore, the first gateway TCF device may determine the subnet TCF device and the gateway TCF device that receive the first information, and further determine the number of subnet TCF devices and the number of gateway TCF devices that receive the first information. Therefore, after receiving the first information, the first gateway TCF device distributes the first information to the subnet TCF device and the gateway TCF device that receive the first information. For example, in fig. 2, the first gateway TCF device distributes the first information to the second gateway TCF device through the third communication link, and distributes the first information to the second subnet TCF device through the fourth communication link.

Because the first gateway office TCF device has the function of distributing information, the G-TCF device only needs to send the received information to the first gateway office TCF device once through the second communication link, and does not need to send the information for multiple times according to the number of the subnet TCF devices that are not directly connected to the G-TCF device. The number of information sending times is reduced, and the information sending efficiency is improved.

It should be noted that, in this embodiment of the application, the order in which the first gateway office TCF device sends the first information to the second gateway office TCF device and sends the first information to the second subnet TCF device is not limited.

S108, the second gateway office TCF equipment sends first information to the third subnet TCF equipment through a fifth communication link; accordingly, the third subnet TCF device receives the first information.

In this embodiment, in S102, the second gateway office TCF device obtains, according to the third signaling, the identification information of the subnet TCF device corresponding to the subnet located under the second gateway office 22, so as to determine the subnet TCF device that receives the first information. Thus, the second gateway office TCF device determines the number of sub-network TCF devices located under the second gateway office 22 receiving the first information. Therefore, after receiving the first message, the second gateway office TCF device sends the first message to each subnet TCF device according to the number of subnet TCF devices that are under the second gateway office 21 and receive the first message. For example, in fig. 2, the subnet TCF device receiving the first information only has the third subnet TCF device, and the second gateway TCF device sends the first message to the subnet TCF device under the gateway via the fifth communication link after receiving the first message. If there are at least two sub-network TCF devices receiving the first information in the second gateway office 22, the second gateway office TCF device needs to distribute the first information according to the number of the sub-network TCF devices receiving the first information after receiving the first information.

Since the second gateway office TCF device has the function of distributing information, the first gateway office TCF device only needs to send the received information to the second gateway office TCF device once through the third communication link, and does not need to send the information multiple times according to the number of the subnet TCF devices receiving the first information under the second gateway office 21. The number of information sending times is reduced, and the information sending efficiency is improved.

In this embodiment, the G-TCF device sends the first information to the first gateway TCF device through the second communication link, and the first gateway TCF device distributes the first information to the second gateway TCF device and the subnet TCF device under the first gateway TCF device through the third communication link and the fourth communication link. And the second gateway TCF equipment distributes the first information to the subnet TCF equipment under the second gateway through a fifth communication link. The first information is only required to be sent once between the G-TCF equipment and the first gateway office TCF equipment and between the first gateway office TCF equipment and the second gateway office TCF equipment, so that the number of information sending times is reduced, and the information sending efficiency is improved. And, the number of communication links for transmitting information is reduced, thereby avoiding waste of communication resources.

After the target group is established, a new terminal device requests to join the target group, and the new terminal device is marked as a second terminal device. The second terminal device may be located in the subnet where the first terminal device is located, or in the first subnet, or in the second subnet, or in the third subnet, or in the fifth subnet, where the fifth subnet is located under the second gateway 22 or under the third gateway 23. The embodiment of the present application does not limit this to the first four cases.

For the fourth case, when the fifth subnet is located under the second gateway 22, as shown in fig. 4, on the basis of the embodiment shown in fig. 3, the method of this embodiment includes:

s201, the G-TCF device receives a group joining request signaling from the fifth subnet TCF device.

In this embodiment, when the second terminal device in the fifth subnet requests to join the target group, the signaling requesting to join the target group is sent to the fifth subnet TCF device, and the fifth subnet TCF device sends the group join request signaling to the G-TCF device according to the received signaling requesting to join the target group sent by the second terminal device, and has requested to join the target group. Wherein, the group join request signaling includes identification information of the fifth subnet TCF device.

S202, the G-TCF equipment sends a sixth signaling to the first gateway office TCF equipment;

in this embodiment, as shown in fig. 5, after the second terminal device joins the target group, the G-TCF device obtains the identification information of the fifth subnet TCF device according to the group join request signaling, so as to determine that the fifth subnet is located under the second gateway 22. On the basis of fig. 3, the second communication link is already established, so that the communication link between the G-TCF device and the first gateway TCF device does not need to be established.

The G-TCF device sends a sixth signaling to the first gateway TCF device, where the sixth signaling includes identification information of the fifth subnet TCF device, so as to notify the first gateway TCF device, and under the second gateway 22, there is a terminal device in the new subnet to join the target group, and the sixth signaling further instructs the first gateway TCF device to send a seventh signaling to the second gateway TCF device.

S203, the first gateway office TCF equipment sends a seventh signaling to the second gateway office TCF equipment;

in this embodiment, after receiving the sixth signaling, the first gateway office TCF device determines that the fifth subnet is located in the second gateway office 22 according to the identification information of the fifth subnet TCF device in the sixth signaling, and on the basis of fig. 3, the third communication link is already established. Therefore, the first gateway office TCF device may determine, according to the identification information of the fifth subnet TCF device, that the communication link has been established with the second gateway office TCF device, and does not need to establish the communication link between the first gateway office TCF device and the second gateway office TCF device.

The first gateway office TCF device sends a seventh signaling to the second gateway office TCF device, where the seventh signaling includes identification information of the fifth subnet TCF device, and the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device.

S204, the second gateway office TCF device sends an eighth signaling to the fifth subnet TCF device.

In this embodiment, after receiving the seventh signaling, the second gateway office TCF device acquires the identifier information of the fifth subnet TCF device, and determines, according to the identifier information of the fifth subnet TCF device, that no communication link is established between the second gateway office TCF device and the fifth subnet TCF device. Therefore, the second gateway office TCF device sends an eighth signaling to the fifth subnet TCF device, where the eighth signaling includes the identification information of the fifth subnet TCF device, and the eighth signaling is used to indicate to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device, and is denoted as a sixth communication link.

S205, the second gateway office TCF device sends the first information to the fifth subnet TCF device through the sixth communication link.

In this embodiment, after the second terminal device joins the target group, it may receive information that the first terminal device sends to other terminal devices in the target group after the second terminal device joins the target group. The "first information" mentioned in fig. 3 may be information that is sent by the first terminal device to other terminal devices in the target group after the second terminal device joins the target group.

After receiving the first information, the second gateway office TCF device forwards the first information according to the method described in S108, where one of the information is sent to the third subnet TCF device, and the other information is sent to the fifth subnet TCF device.

It should be noted that, for a terminal device that is already currently located in the target group, when the terminal device moves to a fifth subnet under the second gateway 22 and no terminal device in the fifth subnet is located in the target group, the process of the terminal device acquiring the information sent by the first terminal device may refer to the embodiment shown in fig. 4.

It should be noted that, when the positions of the terminal devices in the same subnet in the target group are changed, so that there is no terminal device in the target group in the subnet, the subnet TCF device corresponding to the subnet sends a signaling to the G-TCF, so as to cancel the communication link between the subnet TCF device corresponding to the subnet and the gateway TCF device corresponding to the gateway described in the subnet. The signaling procedure for canceling the communication link between the sub-network TCF device corresponding to the sub-network and the gateway TCF device corresponding to the gateway to which the sub-network belongs may refer to the signaling procedure in the embodiment shown in fig. 4, and is not described herein again.

For the fourth case, when the fifth subnet is located under the third gateway 23, as shown in fig. 6, on the basis of the embodiment shown in fig. 3, the method of this embodiment includes:

s301, the G-TCF device receives the group join request signaling from the fifth subnet TCF device.

S302, the G-TCF equipment sends a sixth signaling to the first gateway office TCF equipment;

in this embodiment, as shown in fig. 7, after the second terminal device joins the target group, the G-TCF device obtains the identification information of the fifth subnet TCF device according to the group join request signaling, so as to determine that the fifth subnet is located under the third gateway 23. On the basis of fig. 3, the second communication link is already established, so that the communication link between the G-TCF device and the first gateway TCF device does not need to be established.

The G-TCF device sends a sixth signaling to the first gateway office TCF device, where the sixth signaling includes identification information of the fifth subnet TCF device, so that the first gateway office TCF device can be notified that a terminal device located in a new subnet joins the target group, and the new subnet is located under the second gateway office 23. The sixth signaling is further configured to instruct the first gateway office TCF device to send a seventh signaling to the third gateway office TCF device.

S303, the first gateway office TCF equipment sends a seventh signaling to the third gateway office TCF equipment;

in this embodiment, after receiving the sixth signaling, the first gateway office TCF device determines, according to the identifier information of the fifth subnet TCF device included in the sixth signaling, the gateway office of the fifth subnet, that is, the third gateway office 23, so as to determine the identifier information of the third gateway office TCF device. The first gateway office TCF device determines that there is no communication link with the third gateway office TCF device. Therefore, the first gateway office TCF device sends a seventh signaling to the third gateway office TCF device, where the seventh signaling includes the identification information of the fifth subnet TCF device, and a communication link between the first gateway office TCF device and the third gateway office TCF device is established according to the seventh signaling and is denoted as a sixth communication link. And, the seventh signaling is used to instruct the third gateway office TCF device to send the eighth signaling to the fifth subnet TCF device.

S304, the third gateway office TCF device sends a fifth signaling to the fifth subnet TCF device.

In this embodiment, after receiving the seventh signaling, the third gateway TCF device acquires the identification information of the fifth subnet TCF device, thereby determining that no communication link is established with the fifth subnet TCF device. And sending an eighth signaling to the fifth subnet TCF device, indicating to establish a communication link between the second gateway TCF device and the fifth subnet TCF device, and recording as a sixth communication link. Wherein the eighth signaling includes identification information of the fifth subnet TCF device.

S305, the first gateway office TCF equipment sends first information to the third gateway office TCF equipment through a sixth communication link; correspondingly, the third gateway office TCF device receives the first information.

After receiving the first information, the first gateway TCF device sends the first information to the second gateway TCF device through the third communication link, to the second subnet TCF device through the fourth communication link, and to the third gateway TCF device through the sixth communication link according to the methods described in S106 and S107.

S306, the third gateway office TCF device sends the first information to the fifth subnet TCF device through the sixth communication link.

In this embodiment, after receiving the first information, the third gateway office TCF device sends the first information to the fifth subnet TCF device through the sixth communication link according to the method shown in S108. If a new terminal device in the subnet under the third gateway office 23 joins the target group, the third gateway office TCF device receives the first information, and then sends the first information to the fifth subnet TCF device and the subnet TCF device corresponding to the new subnet by using the method shown in S108.

It should be noted that, for the terminal device that is currently located in the target group, when the terminal device moves to the fifth subnet under the third gateway 23 and no terminal device in the fifth subnet is located in the target group, the process of the terminal device acquiring the information sent by the first terminal device may refer to the embodiment shown in fig. 6.

It should be noted that, when the position of the terminal device in the same subnet in the target group changes, so that there is no terminal device in the target group under the subnet, and there is no terminal device in the target group in other subnets under the gateway office described in the subnet, the subnet TCF device corresponding to the subnet sends a signaling to the G-TCF, so as to cancel the communication link between the subnet TCF device corresponding to the subnet and the gateway office TCF device corresponding to the gateway office to which the subnet belongs, and the communication link between the gateway office TCF device corresponding to the gateway office to which the subnet belongs and the first gateway office TCF device. The signaling procedure for canceling the communication link may refer to the signaling procedure in the embodiment shown in fig. 6, and is not described herein again.

Fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application, where the device of this embodiment is applied to a group-cluster control function TCF (G-TCF) device, as shown in fig. 8, the device of this embodiment may include: a receiving module 81 and a first transmitting module 82. Wherein the content of the first and second substances,

the receiving module 81 is configured to receive first information sent by a first terminal device, where the first information is information sent by the first terminal device to other terminal devices in a target group, a subnet to which the terminal device in the target group belongs includes a subnet in which the first terminal device is located, a first subnet, a second subnet, and a third subnet, the first subnet and the second subnet belong to a first gateway office, the first subnet TCF device is directly connected to the G-TCF device, the second subnet TCF device is not directly connected to the G-TCF device, the first gateway office TCF device is directly connected to the G-TCF device, the third subnet belongs to a second gateway office, and the second gateway office TCF device is not directly connected to the G-TCF device;

a sending module 82, configured to send first information to a first subnet TCF device through a first communication link and to a first gateway TCF device through a second communication link by a G-TCF device, where the first communication link is a communication link established according to a first signaling, and the first signaling includes identification information of the first subnet TCF device; the second communication link is a communication link established according to a second signaling, and the second signaling includes identification information of the second subnet TCF device and identification information of the third subnet TCF device.

Optionally, the sending module 82 is further configured to send a first signaling to the first subnet TCF device by the G-TCF device, and send a second signaling to the first gateway TCF device, where the first signaling is used to indicate that the first communication link is established, and the second signaling is used to indicate that the second communication link is established.

Optionally, the receiving module 81 is further configured to receive a group join request signaling from a fifth subnet TCF device, where the group join request signaling is generated by the fifth subnet TCF device according to a received signaling that requests to join the target group from a second terminal device, the group join request signaling is used to indicate that the second terminal device requests to join the target group, and the group join request signaling includes identification information of the fifth subnet TCF device;

the sending module 82 is further configured to send a sixth signaling to the first gateway office TCF device according to the group join request signaling, where the sixth signaling includes identification information of the fifth subnet TCF device, the sixth signaling is used to instruct the first gateway office TCF device to send a seventh signaling to the gateway office TCF device to which the fifth subnet belongs, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the gateway office TCF device to which the fifth subnet belongs to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the gateway office TCF device to which the fifth subnet belongs and the fifth subnet TCF device.

The apparatus of this embodiment may be configured to implement the technical solutions executed by the G-TCF devices in the foregoing embodiments of the methods, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 9 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, where the apparatus according to this embodiment is applied to a first gateway office TCF device, as shown in fig. 9, the apparatus according to this embodiment may include: a receiving module 91 and a transmitting module 92. Wherein the content of the first and second substances,

a receiving module 91, configured to receive first information from a G-TCF device through a second communication link, where the first information is information sent by a first terminal device in a target group to another terminal device;

a sending module 92, configured to distribute the first information to a second gateway office TCF device through a third communication link, and distribute the first information to a second subnet TCF device through a fourth communication link; the third signaling is a communication link established according to a third signaling, the third signaling includes identification information of the third subnet TCF device, the fourth signaling is a communication link established according to a fourth signaling, and the fourth signaling includes identification information of the second subnet TCF device.

Optionally, the receiving module 91 is further configured to receive a second signaling from the G-TCF device;

the sending module 92 is further configured to send the third signaling to the second gateway office TCF device according to the second signaling, and send the fourth signaling to the second subnet TCF device.

Optionally, the receiving module 91 is further configured to receive a sixth signaling from the G-TCF device, where the sixth signaling includes identification information of a fifth subnet TCF device, the fifth subnet is a subnet to which a second terminal device belongs, the second terminal device is a terminal device that requests to join a target group, the sixth signaling is used to instruct the first gateway TCF device to send a seventh signaling to the second gateway TCF device, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway TCF device and the fifth subnet TCF device;

the sending module 92 is further configured to send a seventh signaling to the second gateway office TCF device according to the sixth signaling.

The apparatus of this embodiment may be configured to execute the technical solution executed by the first gateway office TCF device in each of the above-mentioned exemplary method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 10 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application, where the apparatus according to the present embodiment is applied to a second gateway office TCF device, as shown in fig. 10, the apparatus according to the present embodiment may include: a receiving module 101 and a transmitting module 102. Wherein the content of the first and second substances,

a receiving module 101, configured to receive first information from a first gateway office TCF device through a third communication link;

a sending module 102, configured to send the first information to a third subnet TCF device through a fifth communication link, where the fifth communication link is a communication link established according to a fifth signaling, and the fifth signaling includes identification information of the third subnet TCF device.

Optionally, the receiving module is further configured to receive a third signaling sent by the first gateway office TCF device;

The apparatus of this embodiment may be configured to execute the technical solution executed by the second gateway office TCF device in each of the above-mentioned exemplary method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 11, the electronic device according to the embodiment may include: at least one processor 111 and a memory 112. Fig. 11 shows an electronic device as an example of a processor, wherein,

and a memory 112 for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory 112 may comprise a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

In some embodiments, the processor 111 is configured to execute the instructions stored in the memory 112 to perform:

receiving first information sent by first terminal equipment, wherein the first information is information sent by the first terminal equipment in a target group to other terminal equipment, a subnet to which the terminal equipment in the target group belongs comprises a first subnet, a second subnet and a third subnet, the first subnet and the second subnet belong to a first gateway office, the first subnet TCF equipment is directly connected with G-TCF equipment, the second subnet TCF equipment is not directly connected with G-TCF equipment, the first gateway office TCF equipment is directly connected with the G-TCF equipment, the third subnet belongs to a second gateway office, and the second gateway office TCF equipment is not directly connected with the G-TCF equipment;

sending first information to a first subnet TCF device and to a first gateway TCF device through a second communication link, wherein the first communication link is a communication link established according to a first signaling, and the first signaling comprises identification information of the first subnet TCF device; the second communication link is a communication link established according to a second signaling, and the second signaling includes identification information of the second subnet TCF device and identification information of the third subnet TCF device.

Optionally, before sending the first information to the first gateway office TCF device through the second communication link, the following steps are further performed:

the G-TCF equipment sends a first signaling to the first subnet TCF equipment and sends a second signaling to the first gateway TCF equipment, wherein the first signaling is used for indicating the establishment of the first communication link, and the second signaling is used for indicating the establishment of the second communication link.

Optionally, the following is further performed:

receiving a group joining request signaling from the fifth subnet TCF device, wherein the group joining request signaling is generated by the fifth subnet TCF device according to a received signaling requesting to join the target group from the second terminal device, the group joining request signaling is used for indicating the second terminal device to request to join the target group, and the group joining request signaling includes identification information of the fifth subnet TCF device;

and sending a sixth signaling to the first gateway TCF device according to the group join request signaling, wherein the sixth signaling comprises identification information of a fifth subnet TCF device, the third signaling is used for indicating the first gateway TCF device to send a seventh signaling to the gateway TCF device to which the fifth subnet belongs, the seventh signaling comprises the identification information of the fifth subnet TCF device, the seventh signaling is used for indicating the gateway TCF device to which the fifth subnet belongs to send an eighth signaling to the fifth subnet TCF device, the eighth signaling comprises the identification information of the fifth subnet TCF device, and the eighth signaling is used for indicating establishment of a communication link between the gateway TCF device to which the fifth subnet belongs and the fifth subnet TCF device.

For a specific implementation process, reference may be made to the scheme of the G-TCF device in the foregoing method embodiment, and the technical effects are similar, which are not described herein again.

In some embodiments, processor 111 is configured to execute instructions stored by memory 112 to perform:

receiving first information from the G-TCF equipment through a second communication link, wherein the first information is information sent to other terminal equipment by first terminal equipment in the target group;

distributing the first information to a second gateway bureau TCF device through a third communication link and distributing the first information to a second subnet TCF device through a fourth communication link; the third signaling is a communication link established according to a third signaling, the third signaling includes identification information of the third subnet TCF device, the fourth signaling is a communication link established according to a fourth signaling, and the fourth signaling includes identification information of the second subnet TCF device.

Optionally, before distributing the first information to the second gateway office TCF device through the third communication link and distributing the first information to the second subnet TCF device through the fourth communication link, further performing

Receiving second signaling from the G-TCF device;

and sending a third signaling to the second gateway office TCF equipment according to the second signaling, and sending a fourth signaling to the second subnet TCF equipment.

Optionally, further performing:

receiving a sixth signaling from the G-TCF device, where the sixth signaling includes identification information of a fifth subnet TCF device, the fifth subnet is a subnet to which the second terminal device belongs, the second terminal device is a terminal device that requests to join the target group, the sixth signaling is used to instruct the first gateway TCF device to send a seventh signaling to the second gateway TCF device, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway TCF device and the fifth subnet TCF device;

and sending a seventh signaling to the second gateway office TCF equipment according to the sixth signaling.

For a specific implementation process, reference may be made to the scheme of the TCF device in the first gateway office in the foregoing method embodiment, and the technical effects are similar and will not be described herein again.

receiving first information from a first gateway office (TCF) device through a third communication link;

and the fifth communication link sends the first information to the third subnet TCF device, the fifth communication link is a communication link established according to a fifth signaling, and the fifth signaling comprises the identification information of the third subnet TCF device.

Optionally, before the second gateway office TCF device sends the first information to the third subnet TCF device through the fifth communication link according to the first information, the following is further performed:

Optionally, the following is further performed:

receiving a seventh signaling sent by the first gateway office TCF device, where the seventh signaling includes identification information of a fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device;

transmitting an eighth signaling to the fifth subnet TCF device according to the seventh signaling;

and sending the first information to the second terminal equipment through a communication link between the second gateway office TCF equipment and the fifth subnet TCF equipment.

For a specific implementation process, reference may be made to the scheme of the TCF device in the second gateway office in the foregoing method embodiment, and the technical effects are similar and will not be described herein again.

The processor 111 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present Application.

Alternatively, in a specific implementation, if the memory 112 and the processor 111 are implemented independently, the memory 112 and the processor 111 may be connected to each other through a bus and perform communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The buses may be divided into address buses, data buses, control buses, etc., but do not represent only one bus or one type of bus.

Alternatively, in a specific implementation, if the memory 112 and the processor 111 are integrated on a chip, the memory 112 and the processor 111 may perform the same communication through an internal interface.

Optionally, the electronic device of this embodiment further includes a communication interface 113, and the processor 111 is configured to control the communication interface 113 to implement the receiving and sending functions described above.

Fig. 12 is a block diagram for a communication device according to an embodiment of the present application. Referring to fig. 12, the communication device includes a processing component 31, which further includes one or more processors, and memory resources, represented by memory 32, for storing instructions, such as applications, that are executable by the processing component 31. The application programs stored in memory 32 may include one or more modules that each correspond to a set of instructions. Furthermore, the processing component 31 is configured to execute instructions to perform the data transmission method shown in any of the embodiments described above.

The communication device may also include a power component 33 configured to perform power management of the communication device, a wired or wireless network interface 34 configured to connect the communication device to a network, and an input output (I/O) interface 35. The communication device may operate based on an operating system stored in memory 33, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media capable of storing program codes, such as Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and the like.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of communication, the method comprising:

the G-TCF device sends the first information to the first subnet TCF device through a first communication link and to the first gateway TCF device through a second communication link, the first communication link is a communication link established according to a first signaling, and the first signaling comprises identification information of the first subnet TCF device; the second communication link is a communication link established according to a second signaling, and the second signaling includes identification information of a second subnet TCF device and identification information of a third subnet TCF device;

the first gateway office TCF equipment receives first information from the G-TCF equipment through the second communication link, wherein the first information is information sent to other terminal equipment by first terminal equipment in a target group;

the first gateway office TCF equipment distributes the first information to second gateway office TCF equipment through a third communication link and distributes the first information to second subnet TCF equipment through a fourth communication link; the third communication link is a communication link established according to a third signaling, the third signaling includes identification information of a third subnet TCF device, the fourth communication link is a communication link established according to a fourth signaling, and the fourth signaling includes identification information of a second subnet TCF device;

2. The method of claim 1, wherein before the G-TCF device sends the first information to the first gateway office TCF device over the second communication link, the method further comprises:

3. The method of claim 1, further comprising:

4. The method of claim 1, wherein before the first gateway office TCF device distributes the first information to a second gateway office TCF device via a third communication link and the first information to a second subnet TCF device via a fourth communication link, further comprising:

5. The method of claim 1, further comprising:

the first gateway office TCF receives a sixth signaling from the G-TCF device, where the sixth signaling includes identification information of a fifth subnet TCF device, the fifth subnet is a subnet to which a second terminal device belongs, the second terminal device is a terminal device that requests to join a target group, the sixth signaling is used to instruct the first gateway office TCF device to send a seventh signaling to the second gateway office TCF device, the seventh signaling includes identification information of the fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling to the fifth subnet TCF device, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device;

and the first gateway office TCF sends a seventh signaling to the second gateway office TCF equipment according to the sixth signaling.

6. The method of claim 1, wherein before the second gateway office TCF device sends the first information to a third subnet TCF device over a fifth communication link, the method further comprises:

7. The method of claim 1, further comprising:

the second gateway office TCF device receives a seventh signaling sent by the first gateway office TCF device, where the seventh signaling includes identification information of a fifth subnet TCF device, the seventh signaling is used to instruct the second gateway office TCF device to send an eighth signaling, the eighth signaling includes identification information of the fifth subnet TCF device, and the eighth signaling is used to instruct to establish a communication link between the second gateway office TCF device and the fifth subnet TCF device;

8. An electronic device, comprising: a memory for storing program instructions and at least one processor for invoking the program instructions in the memory to perform the communication method of any one of claims 1-7.

9. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program; the computer program, when executed, implements a communication method as claimed in any one of claims 1-7.