WO2016095510A1

WO2016095510A1 - Path selection method, device and system

Info

Publication number: WO2016095510A1
Application number: PCT/CN2015/084000
Authority: WO
Inventors: 蔡云
Original assignee: 华为技术有限公司
Priority date: 2014-12-15
Filing date: 2015-07-14
Publication date: 2016-06-23
Also published as: CN105763456A

Abstract

Disclosed in the present invention are a path selection method, device and system. The present invention relates to the technical field of communications, and can solve the problem in the prior art about the large load of a first device due to the need of the first device to transmit shared data to each reception device when the first device connects with a large number of reception devices and simultaneously transmits the shared data. The specific solution comprises: a network device receives a data sharing request message sent by the first device, determines a relay device and a reception device from a second device and a third device according to pre-set rules, generates path information, and transmits a data sharing acknowledge message to the first device, the second device and the third device. The present invention is used for path selection.

Description

Path selection method, device and system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a path selection method, device, and system.

Background technique

With the continuous development of network technology, resource sharing has become a common demand of network users. WebRTC (Web Real-Time Communication) is a browser-based real-time multimedia communication technology. Real-time multimedia communication technology mainly includes real-time video communication technology and real-time audio communication technology.

Generally, the division from the perspective of the number of receiving devices can be divided into a two-party conference mode and a multi-party conference mode. The two-party conference mode is that the first device is connected to the receiving device, the first device transmits the shared data to the receiving device, and the receiving device receives the shared data sent by the first device. The multi-party conference mode is that the first device simultaneously connects at least two receiving devices. Optionally, in the multi-party conference mode, the shared data is transmitted by using the WebRTC technology, and the first device is configured to transmit the shared data point-to-point to all the receiving devices, that is, a first device and each receiving device are established. Linking, and the shared data is transmitted by the first device to each receiving device, thereby realizing the transmission of the shared data in the multi-party conference mode. However, in the prior art, when the first device connects a larger number of receiving devices and simultaneously performs shared data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is compared. Big problem.

Summary of the invention

The embodiment of the present invention provides a path selection method, device, and system, which can solve the problem in the prior art when the path selection device connects a large number of receiving devices and simultaneously performs shared data transmission, because the path selection device needs to transmit the shared data to Each receiving device causes a problem that the path selection device has a large load.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, the present invention provides a path selection method, which is applied to a network device, and the method includes:

Receiving, by the network device, a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device;

Determining, by the network device, the relay device and the receiving device in the second device and the third device according to a preset rule, and generating path information, where the path information is used to indicate that the first device is in the middle Transmitting, by the device, the shared data, the relay device transmitting the shared data transmitted by the first device to the receiving device;

The network device sends a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes the path information.

With reference to the first aspect, in a first possible implementation, the determining, by the network device, the relay device and the receiving device in the second device and the third device according to the preset rule, including:

The network device acquires a distribution amount of the second device and a distribution amount of the third device, where a distribution amount of the second device is used to indicate a maximum number of devices that can establish a connection with the second device, where The distribution amount of the third device is used to indicate the maximum number of devices that can establish a connection with the third device;

The network device uses, as the relay device, a device with a large amount of distribution in the second device and the third device, and uses a device with a smaller distribution amount in the second device and the third device as The receiving device.

With reference to the first aspect, in a second possible implementation, the determining, by the network device, the relay device and the receiving device in the second device and the third device according to a preset rule, including:

The network device acquires a relay delay of the second device and a relay delay of the third device, where a relay delay of the second device is used to indicate that the first device uses the shared data Transmitted to the second device, where the second device transmits the shared data to the third device, and the relay delay of the third device is used to indicate that the first device will Transmitting, by the third device, the time when the shared data is transmitted by the third device to the second device;

The network device uses, as the relay device, a device with a smaller relay delay in the second device and the third device, and delays a relay in the second device and the third device. A large device acts as the receiving device.

With reference to the first possible implementation of the first aspect or the second possible implementation of the first aspect, in a third possible implementation, the method further includes:

The network device sends a first transmission message to the first device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device, so that the first device sends the The relay device transmits the shared data.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the method includes:

Receiving, by the network device, first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data;

The network device sends a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device receives the The device transmits the shared data.

In a second aspect, the present invention provides a path selection method, which is applied to a path selection device, where the path selection device is specifically a first device, and the method includes:

The first device sends a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device and the device according to a preset rule. Determining the relay device and the receiving device in the third device, and generating path information, where the path information is used to indicate that the first device transmits shared data to the relay device, and the relay device The shared data transmitted by the device is transmitted to the receiving device;

The first device receives a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes the path information.

In combination with the second aspect, in a first possible implementation manner,

Receiving, by the first device, a first transmission message sent by the network device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device;

The first device establishes a connection with the relay device according to the first transmission message, and transmits the shared data to the relay device.

In a third aspect, the present invention provides a network device, including:

a receiving unit, configured to receive a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device;

a processing unit, configured to be in the second device and the third device according to a preset rule Determining a relay device and a receiving device, and generating path information, the path information being used to indicate that the first device transmits shared data to the relay device, and the relay device transmits the shared data by the first device Transmitting to the receiving device;

And a sending unit, configured to send a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes the path information.

In combination with the third aspect, in a first possible implementation manner,

The network device further includes an obtaining unit, configured to acquire a distribution amount of the second device and a distribution amount of the third device, where the distribution amount of the second device is used to indicate that the connection with the second device is The maximum number of devices, the amount of distribution of the third device is used to indicate the maximum number of devices capable of establishing a connection with the third device;

The processing unit is further configured to use, as the relay device, a device with a large amount of distribution in the second device and the third device, and distribute the amount in the second device and the third device. A small device acts as the receiving device.

In combination with the third aspect, in a second possible implementation manner,

The acquiring unit is further configured to acquire a relay delay of the second device and a relay delay of the third device, where a relay delay of the second device is used to indicate that the first device Transmitting the shared data to the second device, and then using the second device to transmit the shared data to the third device, where the relay delay of the third device is used to indicate the Transmitting, by the first device, the shared data to the third device, and then using the third device to transmit the shared data to the second device;

The processing unit is further configured to use, as the relay device, a device with a smaller relay delay in the second device and the third device, and the second device and the third device A device having a large delay is used as the receiving device.

In conjunction with the first possible implementation of the third aspect or the second possible implementation of the third aspect, in a third possible implementation manner,

The sending unit is further configured to send a first transmission message to the first device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device, so that the first The device transmits the shared data to the relay device.

Combined with the third possible implementation of the third aspect, in the fourth possible implementation In the formula,

The receiving unit is further configured to receive first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data;

The sending unit is further configured to send a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device Transmitting the shared data to the receiving device.

In a fourth aspect, the present invention provides a path selection device, where the path selection device is specifically a first device, including:

a sending unit, configured to send a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device according to a preset rule. And determining, by the third device, the relay device and the receiving device, and generating path information, where the path information is used to instruct the first device to transmit shared data to the relay device, where the relay device The shared data transmitted by the first device is transmitted to the receiving device;

And a receiving unit, configured to receive a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes the path information.

In combination with the fourth aspect, in a first possible implementation manner,

The receiving unit is further configured to receive a first transmission message that is sent by the network device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device;

The first device further includes a connection unit, configured to establish a connection with the relay device according to the first transmission message;

The sending unit is further configured to transmit the shared data to the relay device.

In a fifth aspect, the present invention provides a transmission system, including a network device, a path selection device, and at least two other devices;

The network device is the network device described in any one of the possible implementation manners of the third aspect or the third aspect;

The first device is the path selection device described in the fourth aspect or any one of the possible implementation manners of the fourth aspect.

A path selection method, device, and system provided by the embodiment of the present invention, the network device receives a data sharing request message sent by the first device, determines a relay device and a receiving device in the second device and the third device according to a preset rule, and generates The path information sends a data sharing confirmation message to the first device, the second device, and the third device. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected to simultaneously share data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is large.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic flowchart of a path selection method according to an embodiment of the present invention;

2 is a schematic flowchart of another path selection method according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of still another path selection method according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a path selection device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another path selection device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a transmission system according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts, All fall within the scope of protection of the present invention.

The embodiment of the invention provides a path selection method, which is applied to a network device. In this embodiment, the three devices share data as an example. The three devices are path selection devices (the path selection device may also be the specific device in each embodiment of the present invention), the second device and the second device. The three devices, but the present invention is not limited to three devices. The path selection method provided by the embodiment of the present invention, as shown in FIG. 1, may include the following steps:

The network device receives the data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device.

Optionally, the network device may be a WebRTC server, or may be another server. The first device may be an electronic device such as a laptop or a tablet. The present invention is not specifically limited.

Optionally, the data sharing request message may include an identifier of the first device, an identifier of the second device, and an identifier of the third device. The content of the data sharing request message is not specifically limited by the present invention.

102. The network device determines the relay device and the receiving device in the second device and the third device according to a preset rule, and generates path information.

Optionally, the relay device and the receiving device may be determined in the second device and the third device in two ways. In the first mode, it can be determined according to the distribution amount of the device; in the second mode, it can be determined according to the relay delay of the device.

Optionally, in one manner, the network device can be determined according to the amount of distribution. The distribution of a device is used to indicate the maximum number of devices that can establish a connection with the device. Specifically, the network device can obtain the distribution amount of the second device and the distribution amount of the third device; the device with the larger distribution amount in the second device and the third device is used as the relay device, and the second device and the third device are A device with a small amount of distribution is used as a receiving device. The relay device is configured to receive the shared data transmitted by the first device, and transmit the received shared data to the receiving device. The distribution amount of the second device is used to indicate the maximum number of devices that can establish a connection with the second device, and the distribution amount of the third device is used to indicate the maximum number of devices that can establish a connection with the third device.

Alternatively, in the second mode, the network device may be determined according to the relay delay. The relay delay of a device is used to indicate that the device receives shared data, and then the device will share The time it takes to transfer data to another device. Specifically, the network device may obtain the relay delay of the second device and the relay delay of the third device; and use the device with the smaller relay delay in the second device and the third device as the relay device, and the second device A device with a large relay delay in the device and the third device functions as a receiving device. The relay delay of the second device is used to indicate the time used by the first device to transmit the shared data to the second device, and then the second device transmits the shared data to the third device, and the relay delay of the third device And a time for instructing the first device to transmit the shared data to the third device, and then transmitting, by the third device, the shared data to the second device.

Optionally, the path information is a transmission path of the shared data. The path information is used to instruct the first device to transmit the shared data to the relay device, and the relay device transmits the received shared data transmitted by the first device to the receiving device.

103. The network device sends a data sharing confirmation message to the first device, the second device, and the third device.

The data sharing confirmation message includes path information. After the first device, the second device, and the third device receive the data sharing confirmation message, because the data sharing confirmation message includes the path information when the shared data is transmitted, the first device may transmit the shared data to the relay according to the path information. After receiving the shared data transmitted by the first device, the relay device transmits the received shared data transmitted by the first device to the receiving device according to the data sharing confirmation message. At this time, the first device can transmit the shared data to the Second device and third device.

Optionally, the first device transmits the shared data to the relay device according to the path information, specifically:

The network device sends a first transmission message to the first device. Preferably, the first transmission message may be sent by the network device to the first device together with the data sharing confirmation message, where the first transmission message is used to indicate the first device and the relay. A connection is established between the devices so that the first device transmits the shared data to the relay device.

Optionally, the relay device transmits the received shared data to the receiving device according to the path information, including:

The network device receives the first state information sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data, and the network device sends the information to the relay device. The second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device transmits the shared data to the receiving device.

According to the path selection method provided by the embodiment of the present invention, the network device receives the data sharing request message sent by the first device, determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information, and The first device, the second device, and the third device send a data sharing confirmation message. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected to simultaneously share data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is large.

Based on the embodiment corresponding to FIG. 1, the embodiment of the present invention provides another path selection method, which is optionally applied to data sharing in a multi-party conference mode. The multi-party conference mode is a first device connecting at least two receiving devices, wherein the first device is configured to transmit the shared data point-to-point to all the receiving devices, that is, a link is established between the first device and each receiving device. The shared data is transmitted by the first device to each receiving device, thereby implementing shared data transmission in the multi-party conference mode. However, in the prior art, the WebRTC technology can only support the first device to connect a small number of receiving devices to simultaneously transmit shared data. When the first device connects a larger number of receiving devices for shared data transmission, the first device needs to The shared data is transmitted to each receiving device, which causes the first device to load a large amount. The shared data may be a video resource, may be an audio resource, etc., and the present invention is not specifically limited. Optionally, in this embodiment, N devices are taken as an example, where N is an integer greater than 3. When N=5, the five devices are the first device, the second device, and the third device, respectively. The fourth device and the fifth device. When the first device transmits the shared data to the other device, the path selection method provided by the embodiment of the present invention is as shown in FIG. 2, and the method may include:

201. The network device receives a data sharing request message of the first device.

The data sharing request message is used to request to transmit the shared data to the second device, the third device, the fourth device, and the fifth device.

Optionally, the network device may be a WebRTC server, or may be another server. The first device may be an electronic device such as a notebook computer or a tablet computer. The present invention is not specifically limited.

Optionally, the data sharing request message may include an identifier of the first device, an identifier of the second device, an identifier of the third device, an identifier of the fourth device, and an identifier of the fifth device, where the data sharing request message is included The content is not specifically limited in the present invention.

202. The network device determines the relay device and the receiving device in the second device, the third device, the fourth device, and the fifth device according to the preset rule, and generates path information.

Optionally, when the shared data transmission is performed, when the number of devices receiving the shared data is greater than or equal to 4, the number of the relay device and the receiving device may be more than one, where the number of the relay device and the receiving device is Values, the invention is not specifically limited. In this embodiment, two relay devices and two receiving devices are taken as an example, but the present invention is not limited thereto.

Optionally, the relay device and the receiving device may be determined in the second device, the third device, the fourth device, and the fifth device in two manners. In the first mode, it is determined by the distribution amount of the device that the distribution amount of one device is used to indicate the maximum number of devices capable of establishing a connection with the device. In the second mode, the relay delay of the device may be determined, and the relay delay of one device is used to indicate the time taken by the device to receive the shared data, and then the shared data is transmitted by the device to the other device. Specifically, in one mode, the network device can obtain the distribution amount of each device; the device with a larger amount of distribution among the devices is used as the relay device, and the device with a smaller amount of distribution among the devices is used as the receiving device, where The amount of distribution of each device is used to indicate the maximum number of devices that can establish connections with other devices. In the second mode, the network device can obtain the relay delay of each device; the device with the smaller relay delay in each device is used as the relay device, and the device with the larger relay delay in each device is received. device.

Preferably, when the relay device and the receiving device are determined in the second device, the third device, the fourth device, and the fifth device, the distribution amount of each device and the relay delay may be combined to determine the relay. Equipment and receiving equipment. Specifically, when the distribution of the multiple devices is greater than or equal to the preset threshold, the device with a smaller relay delay in each device can be used as the relay device, and the device with a larger relay delay can be used as the receiving device. Optionally, the preset threshold may be set by using an actual situation. Here, the value of the preset threshold is not specifically implemented by the present invention. limit.

Optionally, each device that needs to share data may be in the same network or may not be in the same network. In this embodiment, the first device, the second device, and the third device are respectively in the same network. The two application scenarios in which the second device, the fourth device, and the fifth device are not in the same network are taken as an example for description.

In the first application scenario, that is, the first device, the second device, and the third device are in the same network, and the second device can be used as the first relay device, and the third device is used as the receiving device, where A relay device is configured to receive the shared data transmitted by the first device, and transmit the received shared data to the receiving device. The process of specifically determining the first relay device and the receiving device is as follows:

In the first step, the network device acquires the distribution amount of the first device, the second device, and the third device. The distribution amount of the first device is used to indicate the maximum number of devices that can establish a connection with the first device, and the distribution amount of the second device is used to indicate the maximum number of devices that can establish a connection with the second device. The distribution amount is used to indicate the maximum number of devices that can establish a connection with the third device.

Optionally, the amount of distribution of each device can be obtained through the access bandwidth of each device. In this embodiment, if the access bandwidth of the first device is 120M, when the shared data transmission is performed, the access bandwidth required for transmitting the shared data to each device is 40M, and the distribution amount of the first device is 3, Similarly, the distribution amount of the second device can be set to 4, the distribution amount of the third device is 2, the distribution amount of the fourth device is 2, and the distribution amount of the fifth device is 2. Of course, it can also be calculated by other methods. The distribution amount of each device is not specifically limited in the present invention.

In the second step, when the second device distribution amount and the third device distribution amount are greater than a preset threshold, the second device and the third device having the larger distribution amount are used as the first relay device, and the second device and The device with a smaller amount of distribution in the third device serves as the receiving device. Further, in this embodiment, the distribution amount of the second device is 4, and the distribution amount of the third device is 2, that is, the distribution amount of the second device is greater than the distribution amount of the third device, and the second device is confirmed as the first device. A relay device, the third device is confirmed as a receiving device. At this time, the first device may transmit the shared data to the second device, and the second device transmits the received shared data to the third device.

Optionally, when the first device, the second device, and the third device are in the same network, the second device and the third device are combined with the preset threshold, and may be combined with the second device. The first relay device and the receiving device are determined according to the delay and the relay delay of the third device. Specifically, the device with a smaller relay delay in the second device and the third device is used as the first relay device, and the device with a larger relay delay in the second device and the third device is used as the receiving device. The relay delay of the second device is used to indicate the time used by the first device to transmit the shared data to the second device, and then the second device transmits the shared data to the third device, and the relay delay of the third device And a time for instructing the first device to transmit the shared data to the third device, and then transmitting, by the third device, the shared data to the second device.

In the second application scenario, the second device, the fourth device, and the fifth device are not in the same network, and the fourth device is used as the second relay device, and the fifth device is used as the first receiving device. The second relay device is configured to receive the shared data transmitted by the second device, and transmit the received shared data to the first receiving device. The process of specifically determining the second relay device and the first receiving device is as follows:

In the first step, the network can obtain the routing information of the second device to other devices through the traceroute tool. Of course, the routing information of the second device to other devices can also be obtained by other means, and the present invention does not impose specific restrictions. . Optionally, in this embodiment, routing information of the second device to other devices may be as shown in Table 1.

Table 1

In the second step, after determining the routing information of the second device to the other devices, the common routing point in the routing point of the second device to the other devices is obtained in the routing information, where the public routing point has two Or routing points used by more than two devices.

As shown in Table 1, it can be seen that in the routing points of the second device to the fourth device, two routing points are the same as the two routing points in the routing points of the second device to the fifth device, then the two The routing points are public routing points. As shown in Table 2: The two public roads are a little public route point 1 and public route point 2, respectively.

Table 2

目的设备名称Destination device name	公共路由点1Public routing point 1	公共路由点2Public routing point 2
目的设备名称Destination device name	公共路由点1Public routing point 1	公共路由点2Public routing point 2	第四设备Fourth device	180.180.100.1180.180.100.1	182.162.110.8182.162.110.8
第五设备Fifth device	180.180.100.1180.180.100.1	182.162.110.8182.162.110.8	第四设备Fourth device	180.180.100.1180.180.100.1	182.162.110.8182.162.110.8

Further, after determining the common routing points of the second device to the fourth device and the second device to the fifth device, the network device may obtain, by using the traceroute tool, the second device separately transmitting the shared data to the network of the fourth device and the fifth device. The delay, the fourth device transmits the shared data to the network of the fifth device and the network delay of the fifth device transmitting the shared data to the fourth device. Optionally, as shown in Table 3, Table 4 and Table 5.

As shown in Table 3, it can be seen that the second device reaches the network delay of the fourth device through the public routing point 1 and the public routing point 2, respectively, and the second device reaches the first through the public routing point 1 and the public routing point 2, respectively. Network delay of five devices.

table 3

As shown in Table 4, it can be seen that the fourth device reaches the network delay of the fifth device through the public routing point 1 and the public routing point 2, respectively.

table 5

As shown in Table 4, it can be seen that the fifth device reaches the network delay of the fourth device through the public routing point 1 and the public routing point 2, respectively.

Table 6

Further, the relay delay of the fourth device may be the sum of the network delay used by the second device to transmit the shared data to the fourth device and the network delay used by the fourth device to transmit the shared data to the fifth device; The relay delay of the five devices may be the sum of the network delay used by the second device to transmit the shared data to the fifth device and the network delay used by the fifth device to transmit the shared data to the fourth device. The relay delay of the fourth device is used to indicate the time that the second device transmits the shared data to the fourth device, and then the fourth device transmits the shared data to the fifth device; the relay delay of the fifth device And a time for instructing the second device to transmit the shared data to the fifth device, and then transmitting, by the fifth device, the shared data to the fourth device.

In the third step, when the distribution amount of the fourth device and the distribution amount of the fifth device are greater than or equal to the preset threshold, the device with the smaller relay delay in the fourth device and the fifth device is used as the second relay device. The device with a larger relay delay in the fourth device and the fifth device is used as the first receiving device. Further, as shown in Table 3, Table 4 and Table 5, it can be seen by comparison that the relay delay of the fourth device is smaller than the relay delay of the fifth device, and the fourth device is confirmed as The second relay device is confirmed as the first receiving device by the fifth device.

In this embodiment, the first device transmits the shared data to the second device, and the third device, in the process of the fifth device, determines the two relay devices and the two receiving devices, and then generates the path. information.

Preferably, the path information may indicate that the first device transmits the shared data to the second device, and the second device, as the first relay device, transmits the received shared data sent by the first device to the third device and the fourth device. The fourth device, as the second relay device, transmits the shared data sent by the second device to the fifth device; in this way, the first device can transmit the shared data to the second device, the third device, The fourth device and the fifth device perform the transmission of the shared data by setting the first relay device and the second relay device in the process of transmitting the shared data, and the first device no longer transmits the shared data to each of the receiving devices, which can be solved. In the prior art, when the first device connects a large number of receiving devices and simultaneously performs shared data transmission, the first device needs to transmit the shared data to each receiving device, which causes a problem that the load of the first device is large.

Optionally, the path information may also indicate that the first device transmits the shared data to the second device, and the second device, as the first relay device, transmits the received shared data sent by the first device to the third device and the first device. The fourth device is used as the second relay device to transmit the shared data sent by the second device to the fifth device, and the third device can serve as the third relay device and receive the shared data sent by the second device. Transmitting to the fifth device; in this way, for the fifth device, receiving both the shared data sent by the third device and the shared data sent by the fourth device, even in the case of packet loss, the fifth The device can also share data normally.

203. The network device sends a data sharing confirmation message to the first device, the second device, the third device, the fourth device, and the fifth device.

The data sharing confirmation message includes path information. After each device receives the data sharing confirmation message, since the data sharing confirmation message includes path information, each device can receive the shared data or transmit the shared data according to the path information.

In this embodiment, the path information may be: first, the first device transmits the shared data to the second device; secondly, the second device serves as the first relay device, and the received first device sends the shared Data transmission to the third device and the fourth device; finally, the first The four devices serve as the second relay device, and transmit the shared data sent by the second device to the fifth device.

204. The network device sends a first transmission message to the first device.

Preferably, the first transmission message may be sent by the network device to the first device together with the data sharing confirmation message. The first transmission message is used to indicate that a connection is established between the first device and the first relay device.

Optionally, before the network device sends the first transmission message to the first device, the network device may first receive the first transmission request message sent by the first device, where the first transmission request message is used to request to transmit the shared data to the second device. Then, the network device sends a first transmission message to the first device, where the first device establishes a connection with the second device according to the first transmission message, and transmits the shared data to the second device. Optionally, the first transmission message may include IP (Internet Protocol) address information of the second device, and may also include routing point information of the second device, where the first device may use the IP address information and the second device The connection is established, and the connection between the routing point information and the second device may also be established. The present invention is not specifically limited.

205. The network device receives the first state information sent by the second device.

The first status information is used to indicate that the second device is in a state of receiving shared data. That is, the second device is receiving the shared data transmitted by the first device.

206. The network device sends a second transmission message to the second device.

The second transmission message is used to indicate that the second device and the third device establish a connection between the second device and the fourth device.

Optionally, before the network device sends the second transmission message to the second device, the network device may first receive the second transmission request message sent by the second device, where the second transmission request message is used to request to transmit the shared data to the third device and the fourth device. . Then, the network device sends a second transmission message to the second device, and the second device establishes a connection with the third device and the fourth device according to the second transmission message, and transmits the shared data to the third device and the fourth device. Optionally, the second transmission message may include the IP address information of the third device and the fourth device, and may also include routing point information of the third device and the fourth device, where the second device may separately use the IP address information and the third device. And establishing a connection between the fourth device, and establishing a connection between the third device and the fourth device by using the routing point information, where the present invention does not specifically limit.

207. The network device receives second state information sent by the fourth device.

The second status information is used to indicate that the fourth device is in a state of receiving shared data. That is, the fourth device is receiving the shared data transmitted by the second device.

208. The network device sends a third transmission message to the fourth device.

The third transmission message is used to indicate that a connection is established between the fourth device and the fifth device.

Optionally, before the network device sends the third transmission message to the fourth device, the network device may first receive the third transmission request message sent by the fourth device, where the third transmission request message is used to request to transmit the shared data to the fifth device. Then, the network device sends a third transmission message to the fourth device, and the fourth device establishes a connection with the fifth device according to the third transmission message, and transmits the shared data to the fifth device. Optionally, the third transmission message may include the IP address information of the fifth device, and may also include the routing point information of the fifth device, where the fourth device may establish a connection with the fifth device by using the IP address information, or may be configured by using a route. The point information is established with the fifth device, and the present invention is not specifically limited.

According to the path selection method provided by the embodiment of the present invention, the network device receives the data sharing request message sent by the first device, and determines the relay device and the receiving device in the second device, the third device, the fourth device, and the fifth device according to the preset rule. And generating path information, and sending a data sharing confirmation message to the first device, the second device, the third device, the fourth device, and the fifth device. In this way, the first device can transmit the shared data to the first relay device according to the path information, and then the first relay device transmits the shared data to the third device and the second relay device, and the second relay device And transmitting the received shared data to the fifth device, so that the shared data can be transmitted by selecting the first relay device and the second relay, and the first device no longer transmits the shared data to each receiving device, thereby The load of the first device is reduced, which can solve the problem that when the first device connects a large number of receiving devices and simultaneously performs shared data transmission, the first device needs to transmit the shared data to each receiving device, which may result in The problem that the load of the first device is large.

With reference to the embodiment corresponding to FIG. 1 and FIG. 2, the embodiment of the present invention provides a path selection method, which is applied to a path selection device, that is, a first device. As shown in FIG. 3, the path selection method includes:

301. The first device sends a data sharing request message to the network device.

Specifically, the first device sends a data sharing request message to the network device, so that the network device determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information. The data sharing request message is used to request to transmit the shared data to the second device and the third device, where the path information is used to instruct the first device to transmit the shared data to the relay device, and the relay device transmits the shared data transmitted by the first device to the Receiving device.

302. The first device receives a data sharing confirmation message sent by the network device.

The data sharing confirmation message includes path information.

303. The first device receives the first transmission message sent by the network device.

Specifically, the first device receives the first transmission message sent by the network device, where the first transmission message is used to indicate that the connection between the first device and the relay device is established.

304. The first device establishes a connection with the relay device according to the first transmission message, and transmits the shared data to the relay device.

In the path selection method provided by the embodiment of the present invention, the first device sends a data sharing request message to the network device, so that the network device determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information. The first device receives a data sharing confirmation message sent by the network device. In this way, the first device can transmit the shared data to the first relay device according to the path information, and then the first relay device transmits the shared data to the third device and the second relay device, and the second relay device And transmitting the received shared data to the fifth device, so that the shared data can be transmitted by selecting the first relay device and the second relay, and the first device no longer transmits the shared data to each receiving device, thereby The load of the first device is reduced, which can solve the problem that when the first device connects a large number of receiving devices and simultaneously performs shared data transmission, the first device needs to transmit the shared data to each receiving device, which may result in The problem that the load of the first device is large.

The embodiment of the invention provides a network device, which is optionally applied to data sharing in a multi-party conference mode. As shown in FIG. 4, the network device 40 can include:

The receiving unit 401 is configured to receive a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device.

The processing unit 402 is configured to determine the relay device and the receiving device in the second device and the third device according to the preset rule, and generate path information, where the path information is used to instruct the first device to transmit the shared data to the relay device, and the relay The device transmits the shared data transmitted by the first device to the receiving device.

The sending unit 403 is configured to send a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes path information.

Optionally, the network device 40 further includes an obtaining unit 404, configured to acquire a distribution amount of the second device and a distribution amount of the third device, where the distribution amount of the second device is used to indicate a maximum of the device that can establish a connection with the second device. The quantity, the amount of distribution of the third device is used to indicate the maximum number of devices that can establish a connection with the third device.

The processing unit 402 is further configured to use, as the receiving device, a device with a large amount of distribution in the second device and the third device as a relay device, and a device with a smaller amount of distribution in the second device and the third device.

Optionally, the obtaining unit 404 is further configured to obtain a relay delay of the second device and a relay delay of the third device, where the relay delay of the second device is used to instruct the first device to transmit the shared data to the first The time when the second device transmits the shared data to the third device, and the relay delay of the third device is used to instruct the first device to transmit the shared data to the third device, and then the third device shares the data. The time it takes for data to be transferred to the second device.

The processing unit 402 is further configured to use, as the relay device, a device with a smaller relay delay in the second device and the third device as the relay device, and a device with a larger relay delay in the second device and the third device as the receiving device.

Optionally, the sending unit 403 is further configured to send, to the first device, a first transmission message, where the first transmission message is used to indicate that the first device establishes a connection with the relay device, so that the first device transmits the sharing to the relay device. data.

Optionally, the receiving unit 401 is further configured to receive first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data.

The sending unit 403 is further configured to send a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device transmits the shared data to the receiving device.

The network device provided by the embodiment of the present invention, the receiving unit receives the number sent by the first device According to the sharing request message, the processing unit determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information, and the sending unit sends data sharing to the first device, the second device, and the third device. Confirm the message. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected to simultaneously share data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is large.

Based on the embodiment corresponding to FIG. 3, the embodiment of the present invention provides a path selection device 50, that is, a first device 50. As shown in FIG. 5, the first device 50 includes:

The sending unit 501 is configured to send a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device and the third device according to the preset rule. Determining the relay device and the receiving device, and generating path information, the path information is used to instruct the first device 50 to transmit the shared data to the relay device, and the relay device transmits the shared data transmitted by the first device 50 to the receiving device.

The receiving unit 502 is configured to receive a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes path information.

Optionally, the receiving unit 502 is further configured to receive a first transmission message sent by the network device, where the first transmission message is used to indicate that the first device 50 establishes a connection with the relay device.

The first device 50 further includes a connection unit 503, configured to establish a connection with the relay device according to the first transmission message;

The sending unit 501 is further configured to transmit the shared data to the relay device.

In the path selection device provided by the embodiment of the present invention, the sending unit sends a data sharing request message to the network device, so that the network device determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information. The receiving unit receives a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes path information. In this way, the first device can transmit the shared data to the relay device according to the path information, and then relay The device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be transmitted by selecting the relay device, and the first device no longer establishes a connection with each receiving device, and the shared data is shared. It is transmitted to each receiving device, thereby reducing the load of the first device, and can solve the problem that the first device needs to transmit the shared data when the first device connects a larger number of receiving devices and simultaneously performs shared data transmission. To each receiving device, the problem of a large amount of load on the first device is caused.

The embodiment of the present invention provides a network device 60. As shown in FIG. 6, the device may be embedded or itself a computer, such as a general-purpose computer, a mobile phone terminal, or a tablet device. The network device 60 includes: at least one processor. 601. Memory 602, bus 603, transmitter 604, and receiver 605. The at least one processor 601, memory 602, transmitter 604, and receiver 605 are connected by bus 603 and communicate with each other.

The bus 603 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 603 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus. among them:

The memory 602 is used to store application code of the inventive scheme, and the application code for executing the inventive scheme is stored in a memory and controlled by the processor 601 for execution.

The memory can be a read only memory ROM or other type of static storage device that can store static information and instructions, a random access memory RAM or other type of dynamic storage device that can store information and instructions, or can be electrically erasable or programmable. Read-only memory EEPROM, CD-ROM or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used for Any other medium that carries or stores the desired program code in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto. These memories are connected to the processor via a bus.

The processor 601 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one configured to implement the embodiment of the present invention. Or multiple integrated circuits.

The receiver 605 is configured to receive a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device.

The processor 601 is further configured to determine the relay device and the receiving device in the second device and the third device according to the preset rule, and generate path information, where the path information is used to instruct the first device to transmit the shared data to the relay device, where The device transmits the shared data transmitted by the first device to the receiving device.

The transmitter 604 is further configured to send a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes path information.

Optionally, the processor 601 is further configured to acquire a distribution amount of the second device and a distribution amount of the third device, where the distribution amount of the second device is used to indicate a maximum number of devices that can establish a connection with the second device, and third. The amount of distribution of the device is used to indicate the maximum number of devices that can establish a connection with the third device.

The processor 601 is further configured to use, as the receiving device, a device with a large amount of distribution in the second device and the third device as a relay device, and a device with a smaller amount of distribution in the second device and the third device.

Optionally, the processor 601 is further configured to obtain a relay delay of the second device and a relay delay of the third device, where the relay delay of the second device is used to instruct the first device to transmit the shared data to the first The time when the second device transmits the shared data to the third device, and the relay delay of the third device is used to instruct the first device to transmit the shared data to the third device, and then the third device shares the data. The time it takes for data to be transferred to the second device.

The processor 601 is further configured to use, as the relay device, a device with a smaller relay delay in the second device and the third device as the relay device, and a device with a larger relay delay in the second device and the third device as the receiving device.

Optionally, the transmitter 604 is further configured to send a first transmission message to the first device, where the first transmission message is used to indicate that the first device establishes a connection with the relay device, so that the first device transmits the sharing to the relay device. data.

Optionally, the receiver 605 is further configured to receive first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data.

The transmitter 604 is further configured to send a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device transmits the shared data to the receiving device.

The network device provided by the embodiment of the present invention, the processor receives the data sharing request message sent by the first device, determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information, A device, a second device, and a third device send a data sharing confirmation message. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected to simultaneously share data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is large.

The embodiment of the present invention provides a path selection device 70, that is, a first device 70. As shown in FIG. 7, the device may be embedded or itself a computer, such as a general-purpose computer, a mobile phone terminal, or a portable device such as a tablet. The device 70 includes: at least one processor 701, a memory 702, a bus 703, a transmitter 704, and a receiver 705. The at least one processor 701, the memory 702, the transmitter 704, and the receiver 705 are connected and completed by a bus 703. Communication.

The bus 703 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 703 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus. among them:

The memory 702 is for storing application code of the inventive scheme, and the application code for executing the inventive scheme is stored in a memory and controlled by the processor 701 for execution.

The memory can be a read only memory ROM or other type of static storage device that can store static information and instructions, a random access memory RAM or other type of dynamic storage device that can store information and instructions, or can be electrically erasable or programmable. ROM EEPROM, CD-ROM or other CD storage, CD storage (including compact discs, laser discs, CDs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used for carrying or storing Any other medium having the desired program code in the form of an instruction or data structure and accessible by a computer, but is not limited thereto. These memories are connected to the processor via a bus.

The processor 701 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

The transmitter 704 is configured to send a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device and the third device according to the preset rule. Determining the relay device and the receiving device, and generating path information, the path information is used to instruct the first device 70 to transmit the shared data to the relay device, and the relay device transmits the shared data transmitted by the first device 70 to the receiving device.

The receiver 705 is configured to receive a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes path information.

Optionally, the receiver 705 is further configured to receive a first transmission message sent by the network device, where the first transmission message is used to indicate that the first device 70 establishes a connection with the relay device.

The processor 701 is configured to establish a connection with the relay device according to the first transmission message.

The transmitter 704 is further configured to transmit the shared data to the relay device.

In the path selection device provided by the embodiment of the present invention, the transmitter sends a data sharing request message to the network device, so that the network device determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information. The receiver receives a data sharing confirmation message sent by the network device, and the data sharing confirmation message includes path information. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected simultaneously for shared data transmission, since the first device needs to share the number According to transmission to each receiving device, the load of the first device is large.

The embodiment of the present invention provides a transmission system 80, as shown in FIG. 8, including a network device 801, a path selection device 802, and at least two other devices 803.

The network device 801 is the network device 801 described in the embodiment corresponding to FIG. 4 or FIG. 6.

The path selection device 802 is the path selection device 802 described in the embodiment corresponding to FIG. 5 or FIG.

In the transmission system provided by the embodiment of the present invention, the network device receives the data sharing request message sent by the first device, and determines the relay device and the receiving device in the second device and the third device according to the preset rule, and generates path information, and the network The device sends a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes path information. In this way, the first device can transmit the shared data to the relay device according to the path information, and then the relay device transmits the received shared data transmitted by the first device to the receiving device, so that the shared device can be shared by selecting the relay device. The transmission of the data, the first device no longer establishes a connection with each of the receiving devices, and transmits the shared data to each of the receiving devices, thereby reducing the load of the first device, and solving the prior art as the first device When a large number of receiving devices are connected to simultaneously share data transmission, since the first device needs to transmit the shared data to each receiving device, the load of the first device is large.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A path selection method, which is applied to a network device, and the method includes:

Receiving, by the network device, a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device;

Determining, by the network device, the relay device and the receiving device in the second device and the third device according to a preset rule, and generating path information, where the path information is used to indicate that the first device is in the middle Transmitting, by the device, the shared data, the relay device transmitting the shared data transmitted by the first device to the receiving device;

The network device sends a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes the path information.
The method according to claim 1, wherein the determining, by the network device, the relay device and the receiving device in the second device and the third device according to a preset rule, including:

The network device acquires a distribution amount of the second device and a distribution amount of the third device, where a distribution amount of the second device is used to indicate a maximum number of devices that can establish a connection with the second device, where The distribution amount of the third device is used to indicate the maximum number of devices that can establish a connection with the third device;

The network device uses, as the relay device, a device with a large amount of distribution in the second device and the third device, and uses a device with a smaller distribution amount in the second device and the third device as The receiving device.
The method according to claim 1, wherein the determining, by the network device, the relay device and the receiving device in the second device and the third device according to a preset rule, including:

The network device acquires a relay delay of the second device and a relay delay of the third device, where a relay delay of the second device is used to indicate that the first device uses the shared data Transmitted to the second device, where the second device transmits the shared data to the third device, and the relay delay of the third device is used to indicate that the first device will Transmitting the shared data to the third device, and then the third device The time taken for the shared data to be transmitted to the second device;

The network device uses, as the relay device, a device with a small relay delay in the second device and the third device, and delays a relay in the second device and the third device. The device acts as the receiving device.
The method according to claim 2 or 3, wherein the method further comprises:

The network device sends a first transmission message to the first device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device, so that the first device sends the The relay device transmits the shared data.
The method of claim 4 wherein said method comprises:

Receiving, by the network device, first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data;

The network device sends a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device receives the The device transmits the shared data.
A path selection method, which is applied to a path selection device, where the path selection device is specifically a first device, and the method includes:

The first device sends a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device and the device according to a preset rule. Determining the relay device and the receiving device in the third device, and generating path information, where the path information is used to indicate that the first device transmits shared data to the relay device, and the relay device The shared data transmitted by the device is transmitted to the receiving device;

The first device receives a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes the path information.
The method of claim 6 wherein:

Receiving, by the first device, a first transmission message sent by the network device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device;

Establishing, by the first device, the first transmission message and the relay device Connecting and transmitting the shared data to the relay device.
A network device, comprising:

a receiving unit, configured to receive a data sharing request message sent by the first device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device;

a processing unit, configured to determine, in the second device and the third device, a relay device and a receiving device according to a preset rule, and generate path information, where the path information is used to indicate that the first device is to the The relay device transmits the shared data, and the relay device transmits the shared data transmitted by the first device to the receiving device;

And a sending unit, configured to send a data sharing confirmation message to the first device, the second device, and the third device, where the data sharing confirmation message includes the path information.
A network device according to claim 8, wherein

The network device further includes an obtaining unit, configured to acquire a distribution amount of the second device and a distribution amount of the third device, where the distribution amount of the second device is used to indicate that the connection with the second device is The maximum number of devices, the amount of distribution of the third device is used to indicate the maximum number of devices capable of establishing a connection with the third device;

The processing unit is further configured to use, as the relay device, a device with a large amount of distribution in the second device and the third device, and distribute a small amount in the second device and the third device The device acts as the receiving device.
A network device according to claim 8, wherein

The acquiring unit is further configured to acquire a relay delay of the second device and a relay delay of the third device, where a relay delay of the second device is used to indicate that the first device Transmitting the shared data to the second device, and then using the second device to transmit the shared data to the third device, where the relay delay of the third device is used to indicate the Transmitting, by the first device, the shared data to the third device, and then using the third device to transmit the shared data to the second device;

The processing unit is further configured to use, as the relay device, a device with a smaller relay delay in the second device and the third device, and the second device and the third device A device having a large delay is used as the receiving device.
A network device according to claim 9 or 10, characterized in that

The sending unit is further configured to send a first transmission message to the first device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device, so that the first The device transmits the shared data to the relay device.
The network device according to claim 11, wherein

The receiving unit is further configured to receive first state information that is sent by the relay device, where the first state information is used to indicate that the relay device is in a state of receiving the shared data;

The sending unit is further configured to send a second transmission message to the relay device, where the second transmission message is used to indicate that a connection is established between the relay device and the receiving device, so that the relay device Transmitting the shared data to the receiving device.
A path selection device, wherein the path selection device is a first device, including:

a sending unit, configured to send a data sharing request message to the network device, where the data sharing request message is used to request to transmit the shared data to the second device and the third device, so that the network device is in the second device according to a preset rule. And determining, by the third device, the relay device and the receiving device, and generating path information, where the path information is used to instruct the first device to transmit shared data to the relay device, where the relay device The shared data transmitted by the first device is transmitted to the receiving device;

And a receiving unit, configured to receive a data sharing confirmation message sent by the network device, where the data sharing confirmation message includes the path information.
The path selection device according to claim 13, wherein

The receiving unit is further configured to receive a first transmission message that is sent by the network device, where the first transmission message is used to indicate that a connection is established between the first device and the relay device;

The first device further includes a connection unit, configured to establish a connection with the relay device according to the first transmission message;

The sending unit is further configured to transmit the shared data to the relay device.
A transmission system, comprising: a network device, a path selection device, and at least two other devices;

The network device is the network device according to any one of claims 8-12;

The first device is the path selection device of any one of claims 13-14.