CN111246311A - Data transmission method and device, storage medium and electronic equipment - Google Patents
Data transmission method and device, storage medium and electronic equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6408—Unicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6402—Address allocation for clients
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- H—ELECTRICITY
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
Abstract
The disclosure relates to a data transmission method, a device, a storage medium and an electronic device, wherein a first network device can send a service request message to a server after receiving the service request message sent by a terminal, wherein the service request message comprises access address information of a target service requested by the terminal; receiving a data packet of the target service sent by the server through second network equipment according to the access address information; determining a target data transmission mode of the data packet, wherein the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device; and sending the data packet to the terminal through the target data transmission mode.
Description
Technical Field
The present disclosure relates to the field of data transmission, and in particular, to a method and an apparatus for data transmission, a storage medium, and an electronic device.
Background
Data transmission modes commonly used in the communication field include a unicast transmission mode and a multicast (or referred to as multicast) transmission mode, in practical application scenarios, such as sports events, concerts, major ceremonies and other activities, there will be a large number of video remote live broadcasting, services such as 360-degree AR/VR remote and live broadcast, at this time, often there will be a plurality of users in the same area watching the same content simultaneously, if traditional unicast transmission (i.e. sending a single piece of data for each user) is adopted, a large amount of transmission resource waste will be caused, but if a multicast transmission mode is adopted, in a 5G network, each cell can only provide services for 2-3 VR users at the same time, if a 4G-era multicast technology is adopted, a large amount of changes need to be made to the network architecture, the core network and the wireless network need to make different configurations for unicast and multicast, this not only affects the development of multicast services, but also seriously affects the transmission efficiency of data.
Disclosure of Invention
The disclosure provides a data transmission method, a data transmission device, a storage medium and an electronic device.
In a first aspect, a method for data transmission is provided, where the method is applied to a first network device, and the method includes: after receiving a service request message sent by a terminal, sending the service request message to a server, wherein the service request message comprises access address information of a target service requested by the terminal; receiving a data packet of the target service, which is sent by the server through second network equipment according to the access address information; determining a target data transmission mode of the data packet, wherein the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device; and sending the data packet to the terminal in the target data transmission mode.
In a second aspect, a method for data transmission is provided, which is applied to a server, and the method includes: receiving a service request message sent by a first network device through a second network device, wherein the service request message comprises access address information of a target service requested by a terminal initiating the service request message; determining a data packet of the target service according to the access address information; sending the data packet to the second network equipment so that the second network equipment can send the data packet to the first network equipment, and the first network equipment can send the data packet to the terminal according to a target data transmission mode; the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
In a third aspect, an apparatus for data transmission is provided, where the apparatus is applied to a first network device, and the apparatus includes: the system comprises a first sending module, a second sending module and a third sending module, wherein the first sending module is used for sending a service request message to a server after receiving the service request message sent by a terminal, and the service request message comprises access address information of a target service requested by the terminal; the first receiving module is used for receiving the data packet of the target service, which is sent by the server through the second network equipment according to the access address information; a first determining module, configured to determine a target data transmission mode of the data packet, where the target data transmission mode includes a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device; and the second sending module is used for sending the data packet to the terminal through the target data transmission mode.
In a fourth aspect, an apparatus for data transmission is provided, where the apparatus is applied to a server, and the apparatus includes: a third receiving module, configured to receive a service request message sent by a first network device through a second network device, where the service request message includes access address information of a target service requested by a terminal that initiated the service request message; the second determining module is used for determining the data packet of the target service according to the access address information; a third sending module, configured to send the data packet to the second network device, so that the second network device sends the data packet to the first network device, so that the first network device sends the data packet to the terminal according to a target data transmission manner; the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
In a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of the disclosure.
In a sixth aspect, a computer readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to the second aspect of the disclosure.
In a seventh aspect, an electronic device is provided, which is applied to a first network device, and includes: a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the disclosure.
In an eighth aspect, an electronic device applied to a server is provided, including: a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method of the second aspect of the disclosure.
According to the technical scheme, after receiving a service request message sent by a terminal, a first network device sends the service request message to a server through a second network device, wherein the service request message comprises access address information of a target service requested by the terminal; receiving a data packet of the target service sent by the server through the second network device according to the access address information; determining a target data transmission mode of the data packet, wherein the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device; the data packet is sent to the terminal through the target data transmission mode, that is, the first network device (e.g., a base station) may determine the corresponding data transmission mode according to the number of terminals actually requesting the target service in a period of time, or may determine the target data transmission mode according to the transmission mode indication information sent by the second network device (e.g., a gateway), so that no change is needed to the network structure no matter the unicast transmission mode or the multicast transmission mode is adopted, and the core network and the wireless network may adopt the same architecture and protocol for unicast and multicast/multicast, and may also flexibly control the switching of unicast and multicast/multicast services, and improve the transmission efficiency of data.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a first method of data transmission in accordance with an exemplary embodiment;
FIG. 2 is a flow chart illustrating a second method of data transmission in accordance with an exemplary embodiment;
FIG. 3 is a block diagram illustrating an apparatus for a first type of data transfer in accordance with an exemplary embodiment;
FIG. 4 is a block diagram illustrating an apparatus for a second type of data transfer in accordance with an exemplary embodiment;
FIG. 5 is a block diagram illustrating an apparatus for a third data transfer in accordance with an example embodiment;
FIG. 6 is a block diagram illustrating an apparatus for a fourth data transfer in accordance with an example embodiment;
FIG. 7 is a block diagram illustrating an apparatus for a fifth type of data transmission in accordance with an exemplary embodiment;
FIG. 8 is a block diagram illustrating an apparatus for a sixth type of data transmission in accordance with an exemplary embodiment;
FIG. 9 is a block diagram illustrating a first type of electronic device, according to an example embodiment;
fig. 10 is a block diagram illustrating a second electronic device according to an example embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
First, an application scenario of the present disclosure is introduced, the present disclosure is mainly applied to a transmission scenario of communication data, for example, in sports events, concerts, and other activities, there will be a large amount of video remote live broadcast services, at this time, there will be a plurality of users watching the same content at the same time in the same area, if a traditional unicast transmission is adopted (i.e. sending one piece of data for each user separately), a large amount of transmission resources will be wasted, but if a multicast transmission mode is adopted, each cell in a 5G network can only provide services for 2-3 VR users at the same time, if a multicast technology in the 4G era is adopted, a large amount of changes need to be made to a network architecture, a core network and a wireless network both need to perform different configurations for unicast and multicast, which causes adverse effects on application of multicast services, which not only affects development of multicast services, the transmission efficiency of data is also seriously affected.
In order to solve the above existing problems, the present disclosure provides a method, an apparatus, a storage medium, and an electronic device for data transmission, where a first network device (e.g., a base station) may determine a corresponding data transmission mode according to the number of terminals actually requesting the target service in a period of time, or may also determine the target data transmission mode according to transmission mode indication information sent by a second network device (e.g., a gateway), so that no change is needed to be made to a network structure no matter a unicast transmission mode or a multicast transmission mode is adopted, and a core network and a wireless network may adopt the same architecture and protocol for unicast and multicast/multicast, and may also flexibly control switching of unicast and multicast/multicast services, thereby improving data transmission efficiency.
Specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a method for data transmission according to an exemplary embodiment, which is applied to a first network device (e.g., a base station), and includes the following steps as shown in fig. 1:
in step 101, after receiving a service request message sent by a terminal, the service request message is sent to a server, where the service request message includes access address information of a target service requested by the terminal.
In an actual application scenario, when a user selects a specific target service (e.g., clicks on network music or clicks on a video file) on a terminal, the terminal initiates a service request, specifically, the terminal sends the service request message to the first network device, and the first network device forwards the service request message to a second network device (e.g., a gateway), and then the second network device forwards the service request to a server, so that the second network device establishes a connection with the server, where the service request message includes access address information (e.g., an IP address and a port number, or a URL address) of the target service requested by the terminal, and the server generally refers to a server in which a core network provides the specific service and an application.
In step 102, a data packet of the target service sent by the server through the second network device according to the access address information is received.
In step 103, determining a target data transmission mode of the data packet, where the target data transmission mode includes a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
The multicast transmission method also includes a multicast transmission method, that is, the multicast transmission method and the multicast transmission method in the communication field may be regarded as the same data transmission method.
In this step, if the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in the first preset time period, the first network device may determine the target data transmission mode as the multicast transmission mode when determining that the number of terminals is greater than or equal to a preset number threshold, or may determine the target data transmission mode as the unicast transmission mode when determining that the number of terminals is less than the preset number threshold; in addition, if the target data transmission mode is determined by the first network device according to the transmission mode indication information sent by the second network device, the first network device may receive the transmission mode indication information sent by the second network device, where the transmission mode indication information is the transmission mode indication information determined by the second network device according to the transmission mode identifier sent by the server (e.g., a multicast or unicast service tag marked by the server for the data packet of the target service), and then determine the target data transmission mode according to the transmission mode indication information.
In step 104, the data packet is sent to the terminal via the target data transmission mode.
Before data transmission, to ensure the security of data transmission, data to be transmitted is generally encrypted (which may also be referred to as data scrambling), in this disclosure, if it is determined that a multicast transmission mode is used for data transmission, the first network device may encrypt the data packet by using a terminal group identifier corresponding to a terminal identifier list of multiple terminals requesting the target service, or if it is determined that a unicast transmission mode is used for data transmission, encrypt the data packet by using a terminal identifier of a single terminal requesting the target service, and then send the encrypted data packet to the terminal by using the target data transmission mode.
By adopting the method, the first network equipment can determine the corresponding data transmission mode according to the number of the terminals actually requesting the target service in a period of time, or can also determine the target data transmission mode according to the transmission mode indication information sent by the second network equipment, so that no matter the unicast transmission mode or the multicast transmission mode is adopted, the network structure is not required to be changed, the core network and the wireless network can adopt the same architecture and protocol aiming at unicast and multicast/multicast, the switching of unicast and multicast/multicast services can be flexibly controlled, and the transmission efficiency of data is improved.
Fig. 2 is a flowchart illustrating a method of data transmission applied to a server according to an exemplary embodiment, and the method includes the following steps, as shown in fig. 2:
in step 201, a service request message sent by a first network device through a second network device is received, where the service request message includes access address information of a target service requested by a terminal that initiated the service request message.
In an actual application scenario, when a user selects a specific target service (e.g., clicks on network music or clicks on a video file) on a terminal, the terminal initiates a service request, specifically, the terminal sends the service request message to the first network device, and then the first network device forwards the service request message to the second network device, and then the second network device forwards the service request message to a server, so that the second network device establishes a connection with the server, where the service request message includes access address information (e.g., an IP address and a port number, or a URL address) of the target service requested by the terminal, and the server generally refers to a server in which a core network provides the specific service and application.
In step 202, a data packet of the target service is determined according to the access address information.
In addition, after acquiring the access address information, the server may further determine a service type of the target service according to the access address information, where the service type includes a multicast service (or referred to as a multicast service) or a unicast service, and a specific communication manner of the multicast/multicast service and the unicast service may refer to related descriptions in the prior art, which is not described herein again.
In general, an operator may sign a contract with a service/application provider, identify a service source of a multicast or multicast service, and send address information of the multicast or multicast service to a server, so that, after receiving access address information of the target service, the server may determine the service type of the target service by determining whether the access address information recorded in a preset database corresponds to a multicast or multicast service identifier.
Here, the server may further obtain a data packet corresponding to the target service according to the access address information.
In step 203, the data packet is sent to the second network device, so that the second network device sends the data packet to the first network device, so that the first network device sends the data packet to the terminal according to the target data transmission mode.
The target data transmission mode includes a multicast transmission mode (or referred to as a multicast transmission mode) or a unicast transmission mode, and the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
Based on the description in step 202, the server may determine the service type of the target service according to the access address information, and then, the server may determine a target data transmission mode corresponding to the target service according to the service type, so that the server may send the data packet and a transmission mode identifier for indicating the target data transmission mode to the second network device, so that the second network device sends the data packet to the first network device, and send transmission mode indication information to the first network device according to the transmission mode identifier, where the transmission mode indication information is used to indicate the first network device to send the data packet to the terminal according to the target data transmission mode.
By adopting the method, after the server returns the data packet of the target service to the first network equipment, the first network equipment can determine the corresponding data transmission mode according to the number of the terminals actually requesting the target service in a period of time, or can determine the target data transmission mode according to the transmission mode indication information sent by the second network equipment, so that no change is needed to be made on the network structure no matter the unicast transmission mode or the multicast transmission mode is adopted, and the core network and the wireless network can adopt the same architecture and protocol aiming at the unicast and the multicast, can also flexibly control the switching of the unicast and the multicast/multicast services, and improve the transmission efficiency of the data.
Fig. 3 is a flowchart illustrating a data transmission method according to an exemplary embodiment, in this embodiment, the first network device is taken as a base station, and the second network device is taken as a gateway, and as shown in fig. 3, the method includes the following steps:
in step 301, after receiving a service request message sent by a terminal, a base station sends the service request message to a server through a gateway.
In an actual application scenario, when a user selects a specific target service (e.g., clicks on network music or clicks on a video file) on a terminal, the terminal initiates a service request, specifically, the terminal sends the service request message to a base station, and the base station forwards the service request message to a gateway, and then the gateway forwards the service request message to a server, so that the gateway establishes a connection with the server, where the service request message includes access address information (e.g., an IP address and a port number, or a URL address) of the target service requested by the terminal, and the server generally refers to a server in which a core network provides the specific service and application.
In step 302, the server determines the data packet of the target service and the service type of the target service according to the access address information.
The service type includes a multicast service (or referred to as a multicast service) or a unicast service, where the specific communication modes of the multicast/multicast service and the unicast service may refer to related descriptions in the prior art and are not described herein again.
In general, an operator may sign a contract with a service/application provider, identify a service source of a multicast or multicast service, and send address information of the multicast or multicast service to a server, so that, after receiving access address information of the target service, the server may determine the service type of the target service by determining whether the access address information recorded in a preset database corresponds to a multicast or multicast service identifier.
Here, the server may further obtain a data packet corresponding to the target service according to the access address information.
In step 303, the server determines a target data transmission mode corresponding to the target service according to the service type.
The target data transmission mode may include a unicast transmission mode or a multicast/multicast transmission mode.
In this step, if the service type indicates that the target service is a multicast/multicast service, it may be determined that the target data transmission mode corresponding to the target service is the multicast/multicast transmission mode, and if the service type indicates that the target service is a unicast service, it may be determined that the target data transmission mode corresponding to the target service is the unicast transmission mode.
In step 304, the server sends the data packet and a transmission mode identifier indicating the target data transmission mode to the gateway.
The transmission mode identifier may be a service label on the data packet, where the service label may be represented by a specific character or number, for example, a unicast service is represented by 0, and a multicast service is represented by 1.
In a possible implementation manner, the server may mark a multicast service label on a data packet of the target service when determining that the target service is a multicast service, and therefore, the transmission mode identifier may be a service label on the data packet, that is, when the server sends the data packet to the gateway and the transmission mode identifier is used to indicate the target data transmission mode, the server may send the data packet of the target service marked with a specific service label to the gateway.
In addition, in order to save system resources, before the server sends the data packet to the gateway, it may be determined whether a plurality of service request messages sent by the gateway for the target service are received within a third preset time period; if a plurality of service request messages sent by the gateway for the target service are received within a third preset time period, only one piece of response information may be sent to the gateway for the plurality of service request messages, where the response information includes the data packet of the target service and the transmission mode identifier.
In step 305, the gateway sends the data packet to the base station, and sends the transmission mode indication information to the base station according to the transmission mode identifier.
Wherein, the transmission mode indication information is used to instruct the base station to send the data packet to the terminal according to the target data transmission mode.
In this step, after receiving the data packet, the gateway may generate the transmission mode indication information according to the transmission mode identifier carried in the data packet, and then send the data packet and the transmission mode indication information to the base station, so that the base station may determine, according to the transmission mode indication information, a target data transmission mode when sending the target service data packet to the terminal, for example, different indication identifiers may be carried in the transmission mode indication information, so that the base station may determine the corresponding target data transmission mode according to the indication identifiers.
In step 306, the base station determines the target data transmission scheme for the data packet.
The target data transmission mode comprises a multicast/multicast transmission mode or a unicast transmission mode, and is determined by the base station according to the number of terminals requesting to access the target service in a first preset time period; alternatively, the base station determines the target data transmission method according to the transmission method indication information sent by the gateway (as described in step 305), that is, the base station may determine the target data transmission method through any one of the following two methods.
In a first mode, when a plurality of users (or terminals) request to access the same target service within a period of time, in order to save system resources and improve data transmission efficiency, a base station controls the target data transmission mode of the target service, and a multicast transmission mode may be used for data transmission, so that in the first mode, if the target data transmission mode is determined by the base station according to the number of terminals requesting to access the target service within a first preset time period, the base station determines that the target data transmission mode is the multicast transmission mode when determining that the number of terminals is greater than or equal to a preset number threshold, and if the number of terminals is less than the preset number threshold, the base station determines that the target data transmission mode is the unicast transmission mode.
The service request message may further include terminal identification information of a terminal that sent the service request message, so that the base station may determine which terminals requesting to access the target service in the first preset time period are all present according to the terminal identification information carried in the service request message received in the first preset time period, and the base station may count the number of the terminals, thereby determining the number of the terminals.
In addition, when determining the target data transmission mode, the present disclosure may also use the gateway to generate transmission mode indication information according to a transmission mode identifier (such as a multicast/multicast service tag or a unicast service tag) carried in a data packet sent by the server, and then the gateway indicates the target data transmission mode of the base station through the transmission mode indication information, which is specifically described in the second mode.
And if the target data transmission mode is determined by the base station according to the transmission mode indication information sent by the gateway, the base station may receive the transmission mode indication information sent by the gateway, where the transmission mode indication information is the transmission mode indication information determined by the gateway according to the transmission mode identifier sent by the server, and then determine the target data transmission mode according to the transmission mode indication information.
For example, if the indication flag carried by the transmission method indication information is 1, it is determined that the target data transmission method is a multicast data transmission method, and if the indication flag carried by the transmission method indication information is 0, it is determined that the target data transmission method is a unicast data transmission method.
In step 307, if the gateway determines that there are multiple terminals sending the request message for accessing the target service to the base station within the second preset time period, the base station receives the terminal identifier list sent by the gateway.
The terminal identifier list is a list composed of a plurality of identifiers of the terminal.
In general, the gateway may determine that the target service requested to be accessed by the terminal is the same according to the same access address information in the service request message sent by the terminal, and may further determine whether a plurality of terminals sending the request message for accessing the target service to the base station in the second preset time period include multiple terminals.
In step 308, if the target data transmission mode is the multicast transmission mode, the base station encrypts the data packet according to the terminal group identifier corresponding to the terminal identifier list, and if the target data transmission mode is the unicast transmission mode, the base station encrypts the data packet according to the terminal identifier.
Before data is transmitted, to ensure the security of the transmitted data, data to be transmitted is generally encrypted (which may also be referred to as data scrambling). Here, the specific representation form of the terminal group identifier may be set according to actual service requirements, and the present disclosure does not limit the specific representation form of the terminal group identifier.
In addition, if the base station determines to transmit data in a unicast transmission mode, the base station may encrypt the data packet by using a single terminal identifier carried in the current service request message.
In step 309, the base station sends the encrypted data packet to the terminal through the target data transmission method.
In step 310, the terminal receives the data packet and decodes the data packet by using the self identifier or the group identifier.
In a possible implementation manner of this step, the terminal may first perform inverse operation on the encrypted data packet by using the self identifier of the terminal and the group identifier, so that, after receiving the encrypted data packet of the target service again in the following, the data packet may be decoded by using the target identifier (i.e., the self identifier and/or the group identifier) on which the inverse operation is successful.
By adopting the method, the base station can determine the corresponding data transmission mode according to the number of the terminals actually requesting the target service in a period of time, or can also determine the target data transmission mode according to the transmission mode indication information sent by the gateway, so that no matter the unicast transmission mode or the multicast transmission mode is adopted, the network structure does not need to be changed, the core network and the wireless network can adopt the same architecture and protocol aiming at unicast and multicast/multicast, the switching of the unicast and multicast/multicast services can be flexibly controlled, and the transmission efficiency of the data is improved.
Fig. 4 is a block diagram illustrating an apparatus for data transmission according to an exemplary embodiment, which is applied to a first network device, and as shown in fig. 4, the apparatus includes:
a first sending module 401, configured to send a service request message to a server after receiving the service request message sent by a terminal, where the service request message includes access address information of a target service requested by the terminal;
a first receiving module 402, configured to receive a data packet of the target service sent by the server through a second network device according to the access address information;
a first determining module 403, configured to determine a target data transmission mode of the data packet, where the target data transmission mode includes a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the number of terminals that request to access the target service in a first preset time period, of the first network device; or, the first network device determines according to the transmission mode indication information sent by the second network device;
a second sending module 404, configured to send the data packet to the terminal through the target data transmission manner.
Optionally, if the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in a first preset time period, the first determining module 403 is configured to determine that the target data transmission mode is the multicast transmission mode if the number of terminals is greater than or equal to a preset number threshold; or, if the number of the terminals is smaller than the preset number threshold, determining that the target data transmission mode is the unicast transmission mode.
Optionally, if the target data transmission mode is determined by the first network device according to the transmission mode indication information sent by the second network device, the first determining module 403 is configured to receive the transmission mode indication information sent by the second network device, where the transmission mode indication information is the transmission mode indication information determined by the second network device according to the transmission mode identifier sent by the server; and determining the target data transmission mode according to the transmission mode indication information.
Optionally, fig. 5 is a block diagram of a data transmission apparatus according to the embodiment shown in fig. 4, and as shown in fig. 5, the apparatus further includes:
a second receiving module 405, configured to receive a terminal identifier list sent by the second network device, where the terminal identifier list is a terminal identifier list corresponding to multiple terminals that send request messages requesting to access the target service to the first network device within a second preset time period;
an encryption module 406, configured to encrypt data of the data packet according to a terminal group identifier corresponding to the terminal identifier list if the target data transmission mode is the multicast transmission mode;
the second sending module 404 is configured to send the encrypted data packet to the terminal through the target data transmission manner.
By adopting the device, the first network equipment can determine the corresponding data transmission mode according to the number of the terminals actually requesting the target service in a period of time, or can also determine the target data transmission mode according to the transmission mode indication information sent by the second network equipment, so that no matter a unicast transmission mode or a multicast transmission mode is adopted, the network structure is not required to be changed, the core network and the wireless network can adopt the same architecture and protocol aiming at unicast and multicast/multicast, the switching of unicast and multicast/multicast services can be flexibly controlled, and the transmission efficiency of data is improved.
Fig. 6 is a block diagram illustrating an apparatus for data transmission according to an exemplary embodiment, which is applied to a server, and as shown in fig. 6, the apparatus includes:
a third receiving module 601, configured to receive a service request message sent by a first network device through a second network device, where the service request message includes access address information of a target service requested by a terminal that initiates the service request message;
a second determining module 602, configured to determine a data packet of the target service according to the access address information;
a third sending module 603, configured to send the data packet to the second network device, so that the second network device sends the data packet to the first network device, and the first network device sends the data packet to the terminal according to a target data transmission manner; the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
Optionally, fig. 7 is a block diagram of an apparatus for data transmission according to the embodiment shown in fig. 6, and as shown in fig. 7, the apparatus further includes:
a third determining module 604, configured to determine a service type of the target service according to the access address information, where the service type includes a multicast service or a unicast service;
a fourth determining module 605, configured to determine, according to the service type, the target data transmission mode corresponding to the target service;
the third sending module 603 is configured to send the data packet and a transmission mode identifier for indicating the target data transmission mode to the second network device, so that the second network device sends the data packet to the first network device, and sends transmission mode indication information to the first network device according to the transmission mode identifier, where the transmission mode indication information is used to indicate the first network device to send the data packet to the terminal according to the target data transmission mode.
Optionally, fig. 8 is a block diagram of an apparatus for data transmission according to the embodiment shown in fig. 7, and as shown in fig. 8, the apparatus further includes:
a fifth determining module 606, configured to determine whether multiple service request messages sent by the second network device for the target service are received within a third preset time period;
the third sending module 603 is configured to send a piece of response information to the second network device for a plurality of service request messages sent by the second network device for the target service if the plurality of service request messages sent by the second network device for the target service are received within a third preset time period, where the response information includes the data packet of the target service and the transmission mode identifier.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
By adopting the device, after the server returns the data packet of the target service to the first network equipment, the first network equipment can determine the corresponding data transmission mode according to the number of the terminals actually requesting the target service in a period of time, or can determine the target data transmission mode according to the transmission mode indication information sent by the second network equipment, so that no change is needed to be made on the network structure no matter the unicast transmission mode or the multicast transmission mode is adopted, and the core network and the wireless network can adopt the same architecture and protocol aiming at the unicast and the multicast, can flexibly control the switching of the unicast and the multicast/multicast services, and improve the transmission efficiency of the data.
Fig. 9 is a block diagram illustrating an electronic device 900 according to an example embodiment, where the electronic device 900 may be applied to a first network device (e.g., a base station), and as shown in fig. 9, the electronic device 900 may include: a processor 901 and a memory 902. The electronic device 900 may also include one or more of a multimedia component 903, an input/output (I/O) interface 904, and a communications component 905.
The processor 901 is configured to control the overall operation of the electronic device 900, so as to complete all or part of the steps in the data transmission method. The memory 902 is used to store various types of data to support operation of the electronic device 900, such as instructions for any application or method operating on the electronic device 900 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and the like. The Memory 902 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 903 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 902 or transmitted through the communication component 905. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 904 provides an interface between the processor 901 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 905 is used for wired or wireless communication between the electronic device 900 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 905 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described data transmission method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the data transmission method described above is also provided. For example, the computer readable storage medium may be the memory 902 described above comprising program instructions that are executable by the processor 901 of the electronic device 900 to perform the data transfer method described above.
Fig. 10 is a block diagram illustrating an electronic device 1000 according to an example embodiment, for example, the electronic device 1000 may be provided as a server. Referring to fig. 10, the electronic device 1000 includes a processor 1022, which may be one or more in number, and a memory 1032 for storing computer programs executable by the processor 1022. The computer programs stored in memory 1032 may include one or more modules that each correspond to a set of instructions. Further, the processor 1022 may be configured to execute the computer program to perform the above-described data transmission method.
Additionally, the electronic device 1000 may also include a power component 1026 and a communication component 1050, the power component 1026 may be configured to perform power management for the electronic device 1000, and the communication component 1050 may be configured to enable communication for the electronic device 1000, e.g., wired or wireless communication. In addition, the electronic device 1000 may also include input/output (I/O) interfaces 1058. The electronic device 1000 may operate based on an operating system stored in memory 1032, such as a Windows Server, Mac OS XTM, UnixTM, Linux, and the like.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the data transmission method described above is also provided. For example, the computer readable storage medium may be the memory 1032 comprising program instructions executable by the processor 1022 of the electronic device 1000 to perform the data transmission method described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method of data transmission when executed by the programmable apparatus.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (18)
1. A data transmission method applied to a first network device, the method comprising:
after receiving a service request message sent by a terminal, sending the service request message to a server, wherein the service request message comprises access address information of a target service requested by the terminal;
receiving a data packet of the target service, which is sent by the server through second network equipment according to the access address information;
determining a target data transmission mode of the data packet, wherein the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device;
and sending the data packet to the terminal in the target data transmission mode.
2. The method according to claim 1, wherein if the target data transmission mode is determined by the first network device according to the number of terminals requesting access to the target service in a first preset time period, the determining the target data transmission mode of the data packet comprises:
if the number of the terminals is larger than or equal to a preset number threshold, determining that the target data transmission mode is the multicast transmission mode; alternatively, the first and second electrodes may be,
and if the number of the terminals is smaller than the preset number threshold, determining that the target data transmission mode is the unicast transmission mode.
3. The method of claim 1, wherein if the target data transmission mode is determined by the first network device according to the transmission mode indication information sent by the second network device, the determining the target data transmission mode of the data packet comprises:
receiving the transmission mode indication information sent by the second network device, wherein the transmission mode indication information is transmission mode indication information determined by the second network device according to the transmission mode identifier sent by the server;
and determining the target data transmission mode according to the transmission mode indication information.
4. The method according to any one of claims 1 to 3, wherein before said sending said data packet to said terminal by said target data transmission mode, said method further comprises:
receiving a terminal identification list sent by the second network device, wherein the terminal identification list is a terminal identification list corresponding to a plurality of terminals which send request messages requesting to access the target service to the first network device within a second preset time period;
if the target data transmission mode is the multicast transmission mode, carrying out data encryption on the data packet according to a terminal group identifier corresponding to the terminal identifier list;
the sending the data packet to the terminal through the target data transmission mode comprises:
and sending the encrypted data packet to the terminal in the target data transmission mode.
5. A data transmission method, applied to a server, the method comprising:
receiving a service request message sent by a first network device through a second network device, wherein the service request message comprises access address information of a target service requested by a terminal initiating the service request message;
determining a data packet of the target service according to the access address information;
sending the data packet to the second network equipment so that the second network equipment can send the data packet to the first network equipment, and the first network equipment can send the data packet to the terminal according to a target data transmission mode; the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
6. The method of claim 5, wherein prior to said sending said data packet to said second network device, said method further comprises:
determining the service type of the target service according to the access address information, wherein the service type comprises multicast service or unicast service;
determining the target data transmission mode corresponding to the target service according to the service type;
the sending the data packet to the second network device comprises:
and sending the data packet and a transmission mode identifier for indicating the target data transmission mode to the second network equipment so that the second network equipment can send the data packet to the first network equipment, and sending the transmission mode indication information to the first network equipment according to the transmission mode identifier, wherein the transmission mode indication information is used for indicating the first network equipment to send the data packet to the terminal according to the target data transmission mode.
7. The method of claim 6, wherein prior to said sending the data packet and the transport identifier indicating the target data transport to the second network device, the method further comprises:
determining whether a plurality of service request messages sent by the second network device for the target service are received within a third preset time period;
the sending the data packet and the transmission mode identifier for indicating the target data transmission mode to the second network device includes:
if a plurality of service request messages sent by the second network device for the target service are received within a third preset time period, sending a piece of response information to the second network device for the plurality of service request messages, wherein the response information comprises a data packet of the target service and the transmission mode identifier.
8. A data transmission apparatus, applied to a first network device, the apparatus comprising:
the system comprises a first sending module, a second sending module and a third sending module, wherein the first sending module is used for sending a service request message to a server after receiving the service request message sent by a terminal, and the service request message comprises access address information of a target service requested by the terminal;
the first receiving module is used for receiving the data packet of the target service, which is sent by the server through the second network equipment according to the access address information;
a first determining module, configured to determine a target data transmission mode of the data packet, where the target data transmission mode includes a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network device according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device;
and the second sending module is used for sending the data packet to the terminal through the target data transmission mode.
9. The apparatus according to claim 8, wherein if the target data transmission mode is determined by the first network device according to a number of terminals requesting to access the target service within a first preset time period, the first determining module is configured to determine that the target data transmission mode is the multicast transmission mode if the number of terminals is greater than or equal to a preset number threshold; or, if the number of the terminals is smaller than the preset number threshold, determining that the target data transmission mode is the unicast transmission mode.
10. The apparatus according to claim 8, wherein if the target data transmission mode is determined by the first network device according to transmission mode indication information sent by the second network device, the first determining module is configured to receive the transmission mode indication information sent by the second network device, where the transmission mode indication information is transmission mode indication information determined by the second network device according to a transmission mode identifier sent by the server; and determining the target data transmission mode according to the transmission mode indication information.
11. The apparatus of any one of claims 8 to 10, further comprising:
a second receiving module, configured to receive a terminal identifier list sent by the second network device, where the terminal identifier list is a terminal identifier list corresponding to multiple terminals that send request messages requesting to access the target service to the first network device within a second preset time period;
the encryption module is used for encrypting the data packet according to the terminal group identifier corresponding to the terminal identifier list if the target data transmission mode is the multicast transmission mode;
and the second sending module is used for sending the encrypted data packet to the terminal through the target data transmission mode.
12. A data transmission apparatus, applied to a server, the apparatus comprising:
a third receiving module, configured to receive a service request message sent by a first network device through a second network device, where the service request message includes access address information of a target service requested by a terminal that initiated the service request message;
the second determining module is used for determining the data packet of the target service according to the access address information;
a third sending module, configured to send the data packet to the second network device, so that the second network device sends the data packet to the first network device, so that the first network device sends the data packet to the terminal according to a target data transmission manner; the target data transmission mode comprises a multicast transmission mode or a unicast transmission mode, and the target data transmission mode is determined by the first network equipment according to the number of terminals requesting to access the target service in a first preset time period; or, the first network device determines according to the transmission mode indication information sent by the second network device.
13. The apparatus of claim 12, further comprising:
a third determining module, configured to determine a service type of the target service according to the access address information, where the service type includes a multicast service or a unicast service;
a fourth determining module, configured to determine, according to the service type, the target data transmission mode corresponding to the target service;
the third sending module is configured to send the data packet and a transmission mode identifier for indicating the target data transmission mode to the second network device, so that the second network device sends the data packet to the first network device, and sends the transmission mode indication information to the first network device according to the transmission mode identifier, where the transmission mode indication information is used to indicate the first network device to send the data packet to the terminal according to the target data transmission mode.
14. The apparatus of claim 13, further comprising:
a fifth determining module, configured to determine whether multiple service request messages sent by the second network device for the target service are received within a third preset time period;
the third sending module is configured to send a piece of response information to the second network device for a plurality of service request messages sent by the second network device for the target service if the plurality of service request messages sent by the second network device for the target service are received within a third preset time period, where the response information includes the data packet of the target service and the transmission mode identifier.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
16. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 5 to 7.
17. An electronic device, applied to a first network device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 4.
18. An electronic device, applied to a server, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 5 to 7.
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