CN112235771A - Service downloading method and device for reducing network load - Google Patents

Service downloading method and device for reducing network load Download PDF

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Publication number
CN112235771A
CN112235771A CN202011117948.7A CN202011117948A CN112235771A CN 112235771 A CN112235771 A CN 112235771A CN 202011117948 A CN202011117948 A CN 202011117948A CN 112235771 A CN112235771 A CN 112235771A
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CN
China
Prior art keywords
terminal
request message
server
target server
service
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CN202011117948.7A
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Chinese (zh)
Inventor
张子敬
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SHENZHEN CHINO-E COMMUNICATION CO LTD
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SHENZHEN CHINO-E COMMUNICATION CO LTD
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Priority to CN202011117948.7A priority Critical patent/CN112235771A/en
Publication of CN112235771A publication Critical patent/CN112235771A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup

Abstract

The invention provides a service downloading method and equipment for reducing network load, wherein the method comprises the following steps: a 5G core network receives a request message sent by a terminal, wherein the terminal is a 5G terminal with D2D connection capability, the request message contains a service to be acquired, and the request message carries D2D link information of the terminal; discovering and selecting a media server within a network coverage range, wherein the media server is a D2D connection-capable server; selecting a target server, feeding back information of the target server to the terminal, and sending link information of the terminal to the target server; and instructing the terminal and the target server to perform D2D connection to acquire the service to be acquired. The invention can shunt the data traffic of the 5G mobile cellular network, and the terminal can complete the acquisition of the media resources in a D2D direct connection mode without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system.

Description

Service downloading method and device for reducing network load
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a service downloading method and device for reducing network load.
Background
5G D2D (Device-to-Device) terminal direct technology means that a nearby terminal can perform data transmission by direct communication in a short distance without forwarding through a base station. Due to the advantages of short distance and direct connection, the D2D technology can improve the use efficiency of wireless resources and expand the network coverage, so that a great deal of research is carried out in the 5G construction, and the D2D technology can be applied to more scenes in the future to improve the user experience.
When a terminal acquires a specific service resource, the traditional scheme is that a service request is forwarded to a corresponding service server through a central network, the service server responds to the service request and provides a resource downloading service for the terminal, and resource data completes downloading of data resources through a central network node, which generates little service pressure on a central network element and the service server.
The scheme of the invention provides a service downloading method and equipment for reducing network load under the background.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a method and a device for downloading a service that reduces network load, and to provide a solution to how to offload data traffic of a 5G mobile cellular network and reduce network load.
In order to achieve the purpose, the invention adopts the following technical scheme:
a first aspect of the present invention provides a service downloading method for reducing network load, where the method includes:
a 5G core network receives a request message sent by a terminal, wherein the terminal is a 5G terminal with D2D connection capability, the request message contains a service to be acquired, and the request message carries D2D link information of the terminal;
discovering and selecting a media server within a network coverage range, wherein the media server is a D2D connection-capable server;
selecting a target server, feeding back information of the target server to the terminal, and sending link information of the terminal to the target server;
and instructing the terminal and the target server to perform D2D connection to acquire the service to be acquired.
In the preferred embodiment provided in the first aspect, the request message further carries location information of the terminal; the selected target server is selected based on the location information of the terminal.
In the preferred embodiment provided in the first aspect, the request message further carries a list of media servers discovered by the terminal; the selected target server is selected based on a list of discovered media servers.
A second aspect of the present invention provides a service downloading method for reducing network load, where the method includes:
generating a request message and sending the request message so that a 5G core network receives the request message, wherein the request message contains a service to be acquired, and meanwhile, the request message carries D2D link information of the terminal;
receiving information fed back by the 5G core network, wherein the fed back information comprises information of a target server, and indicating the connection with a target server D2D to acquire the service to be acquired;
and according to the information fed back by the 5G core network, connecting with a target server D2D to acquire the service to be acquired.
In a preferred embodiment provided in the second aspect, the request message further carries location information of the terminal.
In a preferred embodiment provided by the second aspect, the request message further carries a list of media servers discovered by the terminal.
A third aspect of the present invention provides a 5GC server, comprising:
a receiving module, configured to receive a request message sent by a terminal, where the terminal is a 5G terminal with a D2D connection capability, the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
the system comprises a searching module, a searching module and a display module, wherein the searching module is used for searching media servers in a coverage range, and the media servers are servers with D2D connection capability;
the determining module is used for determining a target server from the media servers in the searching range;
and the sending module is used for feeding back the information of the target server to the terminal, sending the link information of the terminal to the target server, and indicating the terminal and the target server to carry out D2D connection so as to acquire the service to be acquired.
In a preferred embodiment provided in the third aspect, the request message further carries location information of the terminal; the selected target server is selected based on the location information of the terminal.
In a preferred embodiment provided in the third aspect, the request message further carries a list of media servers discovered by the terminal; the selected target server is selected based on a list of discovered media servers.
A fourth aspect of the present invention provides a terminal, including:
a message generating and sending module, configured to generate and send a request message, so that a 5G core network receives the request message, where the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
the receiving module is used for receiving information fed back by the 5G core network, wherein the fed back information comprises information of a target server and indicates to be connected with the target server D2D to acquire the service to be acquired;
and the connection module is used for connecting with the target server D2D according to the information fed back by the 5G core network so as to acquire the service to be acquired.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a service downloading method and equipment for reducing network load, wherein the method comprises the following steps: a 5G core network receives a request message sent by a terminal, wherein the terminal is a 5G terminal with D2D connection capability, the request message contains a service to be acquired, and the request message carries D2D link information of the terminal; discovering and selecting a media server within a network coverage range, wherein the media server is a D2D connection-capable server; selecting a target server, feeding back information of the target server to the terminal, and sending link information of the terminal to the target server; and instructing the terminal and the target server to perform D2D connection to acquire the service to be acquired. The invention can shunt the data traffic of the 5G mobile cellular network, and the terminal can complete the acquisition of the media resources in a D2D direct connection mode without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system.
Drawings
FIG. 1 is a timing diagram of a method of the present invention.
FIG. 2 is a schematic block diagram of the flow of the first method of the present invention.
FIG. 3 is a schematic block diagram of a second process of the present invention.
Fig. 4 is a block diagram schematically illustrating a structure of a 5GC server according to the present invention.
Fig. 5 is a block diagram schematically illustrating a structure of a terminal according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a first aspect of the present invention provides a service downloading method for reducing network load, where the method includes the following steps:
s11, a 5G core network receives a request message sent by a terminal, wherein the terminal is a 5G terminal with D2D connection capability, the request message contains a service to be acquired, and the request message carries D2D link information of the terminal;
s12, discovering and selecting a media server in a network coverage range, wherein the media server is a server with D2D connection capability;
s13, selecting a target server, feeding back the information of the target server to the terminal, and sending the link information of the terminal to the target server;
s14, the terminal is indicated to carry out D2D connection with the target server to obtain the service to be obtained.
Example one
By acquiring the geographic positions of the terminal and the media server, the 5G core network server selects the optimal target server according to the distance between the terminal and the target server and the load condition of the media server, for example, the media server with the shortest distance to the terminal or the smallest load can be selected as the selected target server.
And then 5, the GC server synchronizes the D2D link information of the terminal and the target server, and after synchronization is completed, the terminal can directly perform D2D direct communication with the target server, so as to acquire the service to be acquired by the terminal.
Therefore, when the terminal sends the request message, the terminal needs to carry the position information of the terminal; because the D2D link information needs to be synchronized with the selected target Server subsequently, the request message of the terminal also needs to carry the D2D link information of the terminal to the 5G core network Server (5GC Server), wherein the terminal D2D link information includes information used for D2D connection, such as a physical identifier, a D2D link frequency band, and channel resources; the 5G core network server refers to a 5G core network element, and may be AMF, SMF or UPF. Can be determined according to the deployment situation of the existing network.
Example two
According to a discovery D2D device list reported by a terminal, a 5GC core network server selects an optimal media server for service, and according to a principle similar to that of the embodiment, when the terminal sends a request message, the request message needs to carry D2D link information of the terminal; in addition, a discovery D2D device list of the terminal is also required to be carried, and the 5GC core network server selects the optimal media server from the discovery D2D device list reported by the terminal.
It should be noted that, there are many kinds of media servers in the discovery D2D device list carried by the terminal in the request message, and the terminal can only discover these media servers, but does not know the specific use of the specific media server, so a 5GC core network server is needed to help the terminal to identify;
certainly, the purpose of the media server may also be sent to the terminal through message interaction, but in order to better manage the media server, participation of the 5GC core network server is required, for example, how the server confirms the security of the terminal, a plurality of media servers may be deployed in one area, how to share the load, and management of the 5GC core network server is also required.
In summary, the data traffic of the 5G mobile cellular network can be shunted by the invention, the media server is only deployed in the hot spot area of the media service demand, and the 5G terminal completes the acquisition of the media resource in a direct connection manner of D2D without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system.
Referring to fig. 2, a second aspect of the present invention provides a method for downloading a service to reduce a network load, where the method includes the following steps:
s21, generating a request message and sending the request message so that the 5G core network receives the request message, wherein the request message contains the service to be acquired, and the request message carries the D2D link information of the terminal;
s22, receiving information fed back by the 5G core network, wherein the fed back information comprises information of a target server and indicates to be connected with the target server D2D to acquire the service to be acquired;
s23, according to the information fed back by the 5G core network, connecting with the target server D2D to obtain the service to be obtained.
The terminal carries the D2D link information, the position information and the discovered D2D device list of the terminal in the request message and sends the request message to the 5G core network server, and the 5G core network server acquires the service, the position information or/and the discovered D2D device list according to the terminal; selecting a target server for the terminal, sending D2D link information of the terminal to the target server, sending the information of the target server to the terminal, and indicating the terminal to be connected with the target server D2D to obtain a service to be obtained; and the terminal is connected with the target server D2D according to the information fed back by the 5G core network server, and acquires the service to be acquired from the target server.
It should be noted that, there are many kinds of media servers in the list of discovery D2D devices in the request message carried by the terminal, and the terminal can only discover these media servers, but does not know the specific use of the specific media server, so a 5GC core network server is needed to help the terminal to identify;
certainly, the purpose of the media server may also be sent to the terminal through message interaction, but in order to better manage the media server, participation of the 5GC core network server is required, for example, how the server confirms the security of the terminal, a plurality of media servers may be deployed in one area, how to share the load, and management of the 5GC core network server is also required.
In summary, the data traffic of the 5G mobile cellular network can be shunted by the invention, the media server is only deployed in the hot spot area of the media service demand, and the 5G terminal completes the acquisition of the media resource in a direct connection manner of D2D without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system.
Referring to fig. 3, a third aspect of the present invention provides a 5GC server, comprising:
a receiving module 101, configured to receive a request message sent by a terminal, where the terminal is a 5G terminal with a D2D connection capability, the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
a search module 102, configured to search for a media server within a coverage range, where the media server is a server with D2D connection capability;
a determining module 103, configured to determine a target server from the media servers in the search range;
a sending module 104, configured to feed back information of the target server to the terminal, send link information of the terminal to the target server, and instruct the terminal and the target server to perform D2D connection to obtain the service to be obtained.
By acquiring the geographic positions of the terminal and the media server, the 5G core network server selects the optimal target server according to the distance between the terminal and the target server and the load condition of the media server, for example, the media server with the shortest distance to the terminal or the smallest load can be selected as the selected target server.
And then 5, the GC server synchronizes the D2D link information of the terminal and the target server, and after synchronization is completed, the terminal can directly perform D2D direct communication with the target server, so as to acquire the service to be acquired by the terminal.
Therefore, when the terminal sends the request message, the terminal needs to carry the position information of the terminal; because the D2D link information needs to be synchronized with the selected target Server subsequently, the request message of the terminal also needs to carry the D2D link information of the terminal to the 5G core network Server (5GC Server), wherein the terminal D2D link information includes information used for D2D connection, such as a physical identifier, a D2D link frequency band, and channel resources; the 5G core network server refers to a 5G core network element, and may be AMF, SMF or UPF. Can be determined according to the deployment situation of the existing network.
Through a discovery D2D device list reported by a terminal, a 5GC core network server selects an optimal media server for service, and the principle is the same as that of the optimal media server, and when the terminal is required to send a request message, the request message needs to carry D2D link information of the terminal; in addition, a discovery D2D device list of the terminal is also required to be carried, and the 5GC core network server selects the optimal media server from the discovery D2D device list reported by the terminal.
It should be noted that, there are many kinds of media servers in the discovery D2D device list carried by the terminal in the request message, and the terminal can only discover these media servers, but does not know the specific use of the specific media server, so a 5GC core network server is needed to help the terminal to identify;
certainly, the purpose of the media server may also be sent to the terminal through message interaction, but in order to better manage the media server, participation of the 5GC core network server is required, for example, how the server confirms the security of the terminal, a plurality of media servers may be deployed in one area, how to share the load, and management of the 5GC core network server is also required.
In summary, the data traffic of the 5G mobile cellular network can be shunted by the invention, the media server is only deployed in the hot spot area of the media service demand, and the 5G terminal completes the acquisition of the media resource in a direct connection mode of D2D without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system
Referring to fig. 4, a fourth aspect of the present invention provides a terminal, including:
a message generating and sending module 201, configured to generate and send a request message, so that a 5G core network receives the request message, where the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
a receiving module 202, configured to receive information fed back by a 5G core network, where the information fed back includes information of a target server, and indicates to connect to the target server D2D to obtain the service to be obtained;
the connection module 203 is configured to connect with the target server D2D according to the information fed back by the 5G core network to obtain the service to be obtained.
The terminal carries the D2D link information, the position information and the discovered D2D device list of the terminal in the request message and sends the request message to the 5G core network server, and the 5G core network server acquires the service, the position information or/and the discovered D2D device list according to the terminal; selecting a target server for the terminal, sending D2D link information of the terminal to the target server, sending the information of the target server to the terminal, and indicating the terminal to be connected with the target server D2D to obtain a service to be obtained; and the terminal is connected with the target server D2D according to the information fed back by the 5G core network server, and acquires the service to be acquired from the target server.
It should be noted that, there are many kinds of media servers in the list of discovery D2D devices in the request message carried by the terminal, and the terminal can only discover these media servers, but does not know the specific use of the specific media server, so a 5GC core network server is needed to help the terminal to identify;
certainly, the purpose of the media server may also be sent to the terminal through message interaction, but in order to better manage the media server, participation of the 5GC core network server is required, for example, how the server confirms the security of the terminal, a plurality of media servers may be deployed in one area, how to share the load, and management of the 5GC core network server is also required.
In summary, the data traffic of the 5G mobile cellular network can be shunted by the invention, the media server is only deployed in the hot spot area of the media service demand, and the 5G terminal completes the acquisition of the media resource in a direct connection manner of D2D without the participation of a base station, thereby reducing the network load and improving the overall performance of the 5G system.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. A method for downloading traffic to reduce network load, the method comprising:
a 5G core network receives a request message sent by a terminal, wherein the terminal is a 5G terminal with D2D connection capability, the request message contains a service to be acquired, and the request message carries D2D link information of the terminal;
discovering and selecting a media server within a network coverage range, wherein the media server is a D2D connection-capable server;
selecting a target server, feeding back information of the target server to the terminal, and sending link information of the terminal to the target server;
and instructing the terminal and the target server to perform D2D connection to acquire the service to be acquired.
2. The method according to claim 1, wherein the request message further carries location information of the terminal; the selected target server is selected based on the location information of the terminal.
3. The method according to claim 1, wherein the request message further carries a list of media servers discovered by the terminal; the selected target server is selected based on a list of discovered media servers.
4. A method for downloading traffic to reduce network load, the method comprising:
generating a request message and sending the request message so that a 5G core network receives the request message, wherein the request message contains a service to be acquired, and meanwhile, the request message carries D2D link information of the terminal;
receiving information fed back by the 5G core network, wherein the fed back information comprises information of a target server, and indicating the connection with a target server D2D to acquire the service to be acquired;
and according to the information fed back by the 5G core network, connecting with a target server D2D to acquire the service to be acquired.
5. The method according to claim 4, wherein the request message further carries location information of the terminal.
6. The method according to claim 4, wherein the request message further carries a list of local terminal discovery media servers.
7. A5 GC server, characterized in that the server comprises:
a receiving module, configured to receive a request message sent by a terminal, where the terminal is a 5G terminal with a D2D connection capability, the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
the system comprises a searching module, a searching module and a display module, wherein the searching module is used for searching media servers in a coverage range, and the media servers are servers with D2D connection capability;
the determining module is used for determining a target server from the media servers in the searching range;
and the sending module is used for feeding back the information of the target server to the terminal, sending the link information of the terminal to the target server, and indicating the terminal and the target server to carry out D2D connection so as to acquire the service to be acquired.
8. The 5GC server according to claim 7, wherein the request message further carries location information of the terminal; the selected target server is selected based on the location information of the terminal.
9. The central network node according to claim 7, wherein the request message further carries a list of local terminal discovery media servers; the selected target server is selected based on a list of discovered media servers.
10. A terminal, characterized in that the terminal comprises:
a message generating and sending module, configured to generate and send a request message, so that a 5G core network receives the request message, where the request message includes a service to be acquired, and the request message carries D2D link information of the terminal;
the receiving module is used for receiving information fed back by the 5G core network, wherein the fed back information comprises information of a target server and indicates to be connected with the target server D2D to acquire the service to be acquired;
and the connection module is used for connecting with the target server D2D according to the information fed back by the 5G core network so as to acquire the service to be acquired.
CN202011117948.7A 2020-10-19 2020-10-19 Service downloading method and device for reducing network load Pending CN112235771A (en)

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