WO2021104405A1

WO2021104405A1 - Communication method and device

Info

Publication number: WO2021104405A1
Application number: PCT/CN2020/131956
Authority: WO
Inventors: 林霖; 汪学斌; 林涛
Original assignee: 华为技术有限公司
Priority date: 2019-11-29
Filing date: 2020-11-26
Publication date: 2021-06-03
Also published as: CN112887103A; CN112887103B

Abstract

Disclosed are a communication method and device. The method comprises: receiving an information acquisition request from a terminal device, wherein the information acquisition request carries indication information for indicating whether a service is a service of a dedicated connection; when the indication information indicates that the service is the service of a dedicated connection, sending the information acquisition request to a gateway, wherein the information acquisition request is used for acquiring information corresponding to the service; receiving the information from the gateway; and sending the information to the terminal device. By means of the embodiments of the present invention, the capability of an operator to control an Internet service can be improved, so that differentiated pricing can be carried out.

Description

Communication method and equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on November 29, 2019, the application number is 201911207427.8, and the application name is "a communication method and equipment", the entire content of which is incorporated into this application by reference.

Technical field

The embodiment of the present invention relates to the field of communication technology, and in particular to a communication method and device.

Background technique

Currently, operators provide undifferentiated networks that are reachable based on Internet Protocol (IP) for all terminal devices. Therefore, when a terminal device accesses Internet services, the terminal device can obtain the IP address of all services, and the Internet service/content delivery network (CDN) can also obtain the IP address of the accessed terminal device. It can be seen that when a terminal device accesses Internet services, after the operator provides the network route reachability, there is no more control point over the service, which reduces the operator's ability to control the service.

Summary of the invention

The embodiment of the present invention discloses a communication method and equipment, which are used to improve the control ability of the operator over the Internet service.

The first aspect discloses a communication method that receives an information acquisition request from a terminal device that carries indication information for indicating whether the service is a dedicated connection service, and when the indication information indicates that the service is a dedicated connection service, the gateway Send an information acquisition request for acquiring information corresponding to the service, receive the information from the gateway, and send the information to the terminal device. Only when the service is a dedicated connection service, the service is allowed to be transmitted through the gateway, which can improve the operator's ability to control Internet services. In addition, when the service is a dedicated connection service, the service is allowed to be transmitted through the gateway so that the gateway can charge for the dedicated connection service.

As a possible implementation manner, receiving an information acquisition request from a terminal device, the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service, may be receiving an IP address acquisition request from the terminal device, the IP address acquisition request The request carries first indication information used to indicate whether the service is a dedicated connection service. When the instruction information indicates that the service is a dedicated connection service, send an information acquisition request to the gateway. The information acquisition request is used to obtain information corresponding to the service. It can be a situation where the first indication information indicates that the service is a dedicated connection service. Next, send an IP address acquisition request to the gateway, and the IP address acquisition request is used to acquire the IP address corresponding to the service device where the service is located. Receiving the information corresponding to the service from the gateway may be the IP address corresponding to the service device where the service is received from the gateway. Sending the information corresponding to the service to the terminal device may be sending to the terminal device the IP address corresponding to the service device where the service is located. When the service is a dedicated connection service, the IP address corresponding to the service device where the service is located can be obtained through the gateway, so that the data of the service can be obtained through the IP address.

As a possible implementation manner, receiving an information acquisition request from a terminal device, the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service, or receiving a data acquisition request from the terminal device, the data acquisition request It carries second indication information used to indicate whether the service is a dedicated connection service. When the instruction information indicates that the service is a dedicated connection service, an information acquisition request is sent to the gateway. The information acquisition request is used to obtain information corresponding to the service. It may also be a service that indicates that the service is a dedicated connection in the second indication information. In the case of sending a data acquisition request to the gateway, the data acquisition request is used to acquire the data corresponding to the service from the service device corresponding to the IP address. Receiving the information corresponding to the service from the gateway may also be receiving the data corresponding to the service from the gateway. Sending the information corresponding to the service to the terminal device may also be sending the data corresponding to the service to the terminal device. When the service is a dedicated connection service, the data corresponding to the service can be obtained through the gateway, so that the dedicated connection service can be charged.

As a possible implementation manner, the first indication information may be the domain name of the service. The first indication information is used to indicate that the service is a dedicated connection service, and the domain name of the service may be a designated domain name, so that the service connection mode can be determined by the domain name of the service.

As a possible implementation manner, the second indication information may be the destination IP address of the data acquisition request, the second indication information is used to indicate that the service is a dedicated connection service, and the destination IP address of the data acquisition request may be a designated IP address , So that the service connection mode can be determined by the IP address corresponding to the service device where the service is located.

As a possible implementation manner, the first indication information may be the source IP address of the IP address acquisition request, the first indication information is used to indicate that the service is a dedicated connection service, and the source IP address of the IP address acquisition request may be Specify the IP address so that the connection mode of the service can be determined by the IP address of the terminal device.

As a possible implementation, the second indication information may be the source IP address of the data acquisition request, the second indication information is used to indicate that the service is a dedicated connection service, and the source IP address of the data acquisition request may be a specified IP Address so that the connection mode of the service can be determined by the IP address of the terminal device.

As a possible implementation manner, the IP address acquisition request may be a domain name system (domain name system, DNS) request, or a hypertext transfer protocol (hypertext transfer protocol, HTTP) DNS request.

As a possible implementation, when the destination IP address of the IP address acquisition request is the set IP address, the IP address acquisition request is determined to be an HTTP DNS request, so that the IP address acquisition request can be determined through the IP address of the control center Types of.

The second aspect discloses a communication method that receives an information acquisition request from a control device, the service corresponding to the information acquisition request is a dedicated connection service, and in the case that the service is a designated service, the information corresponding to the service is obtained according to the information acquisition request , To send the information corresponding to the service to the control device. Only when the business is a designated business can the information corresponding to the business be acquired, and the number of acquired businesses can be limited, thereby avoiding excessive load.

As a possible implementation manner, receiving an information acquisition request from a control device may be receiving an IP address acquisition request from the control device, and the IP address acquisition request carries an identifier of the service. In the case that the business is a designated business, obtaining the information corresponding to the business according to the information acquisition request can be, in the case that the business corresponding to the identifier is a designated business, sending an IP address acquisition request to the control center, and receiving the information from the control center The first IP address response, the first IP address response carries the first IP address, and the first IP address is the IP address of the service device where the service is determined by the control center according to the gateway. Sending the information corresponding to the service to the control device may be sending a second IP address response to the control device, and the second IP address response carries the first IP address or the IP address corresponding to the first IP address. It can be seen that when the business is a designated business, the IP address of the service device where the business is located can be obtained from the control center.

As a possible implementation manner, receiving the information acquisition request from the control device may also be receiving the data acquisition request from the control device. In the case that the service is a designated service, the information corresponding to the service is obtained according to the information obtaining request, or the service corresponding to the first IP address when the data obtaining request and the service corresponding to the IP address obtaining request are the same service The service device sends a data acquisition request, and receives a data response from the service device that carries business data. Sending information corresponding to the service to the control device may also be sending a data response to the control device. It can be seen that when the business is a designated business, the data of the business can be obtained from the service device.

As a possible implementation, to send an IP address acquisition request to the control center, the source IP address of the IP address acquisition request can be replaced from the second IP address to the third IP address, and then the replaced IP address is sent to the control center Get the request. To send a second IP address response to the control device, you can first replace the destination IP address of the first IP address response from the third IP address to the second IP address to obtain the second IP address response, and then send the second IP address response to the control device . The second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway. Before sending the IP address acquisition request to the control center, first replace the source IP address of the IP address acquisition request from the IP address of the terminal device with the IP address of the gateway to ensure that the Internet service provider/CDN service provider cannot see the IP address of the terminal device address.

As a possible implementation manner, the correspondence between the service identifier and the second IP address and the first IP address or the IP address corresponding to the first IP address may be recorded. In the case where the business corresponding to the data acquisition request and the IP address acquisition request is the same business, the data acquisition request is sent to the service device corresponding to the first IP address, and the corresponding relationship and the source IP address and destination IP of the data acquisition request can be firstly sent Address, confirm that the business corresponding to the data acquisition request and the IP address acquisition request is the same business, then replace the source IP address of the data acquisition request from the second IP address with the third IP address, and change the source port of the data acquisition request from the first port Replace with the second port, and finally send the replaced data acquisition request to the service device corresponding to the first IP address, the first port is the port of the terminal device, and the second port is the port of the gateway. To send a data response to the control device, you can first replace the destination IP address of the data response from the third IP address to the second IP address, and replace the destination port of the data response from the second port to the first port, and then send it to the control device Data response after replacement. Before sending the data acquisition request to the control center, first replace the source IP address of the data acquisition request from the IP address of the terminal device with the IP address of the gateway to ensure that the Internet service provider/CDN service provider cannot see the IP address of the terminal device.

As a possible implementation manner, the destination IP address of the first IP address response is replaced by the third IP address with the second IP address to obtain the second IP address response, which can be that the destination IP address of the first IP address response is changed from the first IP address to the second IP address. The third IP address is replaced with a second IP address, and the first IP address is replaced with a fourth IP address to obtain a second IP address response. The fourth IP address is an IP address allocated by the gateway to identify whether the service is a dedicated connection service. Replace the source IP address of the data acquisition request from the second IP address to the third IP address, and replace the source port of the data acquisition request from the first port to the second port, which can be the source IP address of the data acquisition request from the second The IP address is replaced with the third IP address, the source port of the data acquisition request is replaced from the first port to the second port, and the destination IP address of the data acquisition request is replaced with the first IP address from the fourth IP address. Replace the destination IP address of the data response from the third IP address to the second IP address, and replace the destination port of the data response from the second port to the first port, which can replace the source IP address of the data response with the first IP address Is the fourth IP address, the destination IP address of the data response is replaced from the third IP address to the second IP address, and the destination port of the data response is replaced from the second port to the first port. Before sending the IP address response to the control device, first replace the IP address of the service device where the service is located with the IP address assigned by the gateway to identify whether the service is a dedicated connection service, and before sending the data response to the control device, The source IP address of the data response is replaced by the IP address of the service device where the service is located with the IP address assigned by the gateway to identify whether the service is a dedicated connection service, which can ensure that the terminal device cannot see the Internet service provider/CDN service provider IP address.

As a possible implementation manner, when the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, the broadband used by the terminal device and the service device can be charged according to the minimum limit traffic, and the terminal device and the service device When the broadband traffic used between the service equipment is greater than or equal to the minimum limit traffic, the broadband used by the terminal equipment and the service equipment can be billed according to the broadband usage traffic between the terminal equipment and the service equipment. It can be seen that when the service is a dedicated connection service, when the usage flow rate is lower than the minimum limit flow rate, the billing is based on the lowest flow rate instead of the actual usage flow rate. Therefore, Internet service providers can be avoided /CDN service provider fills a large amount of general-purpose connection service content in the dedicated connection service channel.

As a possible implementation manner, when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum limit bandwidth, the broadband used by the terminal device and the service device can be charged according to the minimum limit bandwidth, and the minimum limit bandwidth is The bandwidth corresponding to the lowest limit traffic; when the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the lowest limit bandwidth, the use of the bandwidth between the terminal device and the service device can be used for the terminal device and the service device The broadband is billed. It can be seen that when the service is a dedicated connection service, when the bandwidth used is lower than the bandwidth corresponding to the lowest limit flow, the billing is based on the bandwidth corresponding to the lowest limit flow, rather than the actual bandwidth used. Therefore, it is possible to prevent Internet service providers/CDN service providers from filling a large amount of general connection service content in the dedicated connection service channel.

As a possible implementation manner, the first IP address acquisition request may be a DNS request or an HTTP DNS request.

The third aspect discloses a communication method that receives an IP address acquisition request from a control device, replaces the source IP address of the IP address acquisition request from a second IP address with a third IP address, and sends the replaced IP address acquisition to the control center Request, receive the first IP address response from the control center, replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with the fourth IP address to get the second IP address response, sending a second IP address response to the control device. The service corresponding to the IP address acquisition request is a dedicated connection service, the second IP address is the IP address of the terminal device, the third IP address is the IP address of the gateway, the first IP address response carries the first IP address, and the first IP address is The control center determines the IP address of the service device where the service is located according to the gateway, and the fourth IP address is an IP address allocated by the gateway for identifying whether the service is a dedicated connection service. Before sending the IP address acquisition request to the control center, first replace the source IP address of the IP address acquisition request from the IP address of the terminal device with the IP address of the gateway to ensure that the Internet service provider/CDN service provider cannot see the IP address of the terminal device address. Before sending the IP address response to the control device, first replace the IP address of the service device where the service is located with the IP address assigned by the gateway to identify whether the service is a dedicated connection service, which can ensure that the terminal device cannot see the Internet service provider/ The IP address of the CDN service provider.

As a possible implementation manner, the IP address acquisition request carries the identifier of the service, and the corresponding relationship between the identifier and the second IP address and the fourth IP address can be recorded, and the data acquisition request from the control device is received according to the corresponding relationship. And the source IP address and destination IP address of the data acquisition request, determine that the business corresponding to the data acquisition request and the IP address acquisition request is the same business, replace the source IP address of the data acquisition request from the second IP address with the third IP address, and change The source port of the data acquisition request is replaced from the first port to the second port, the destination IP address of the data acquisition request is replaced from the fourth IP address to the first IP address, and the replaced data is sent to the service device corresponding to the first IP address Get the request, receive the data response from the service device, replace the source IP address of the data response from the first IP address to the fourth IP address, replace the destination IP address of the data response from the third IP address to the second IP address, and change The destination port of the data response is replaced from the second port to the first port, and the replaced data response is sent to the control device. The first port is the port of the terminal device, the second port is the port of the gateway, and the data response carries the data of the service. Before sending the data acquisition request to the control center, first replace the source IP address of the data acquisition request from the IP address of the terminal device with the IP address of the gateway to ensure that the Internet service provider/CDN service provider cannot see the IP address of the terminal device. Before sending the data response to the control device, replace the source IP address of the data response from the IP address of the service device where the service is located with the IP address assigned by the gateway to identify whether the service is a dedicated connection service, which can ensure that the terminal device cannot See the IP address of the Internet service provider/CDN service provider.

In a fourth aspect, a communication device is disclosed, including:

A receiving unit, configured to receive an information acquisition request from a terminal device, where the information acquisition request carries indication information for indicating whether the service is a dedicated connection service;

A sending unit, configured to send the information acquisition request to the gateway when the indication information indicates that the service is a dedicated connection service, where the information acquisition request is used to obtain information corresponding to the service;

The receiving unit is further configured to receive the information from the gateway;

The sending unit is further configured to send the information to the terminal device.

As a possible implementation manner, the receiving unit receives an information acquisition request from a terminal device, where the information acquisition request carries indication information for indicating whether the service is a dedicated connection service, including:

Receiving an IP address acquisition request from a terminal device, where the IP address acquisition request carries first indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, the sending unit sends the information acquisition request to the gateway, where the information acquisition request is used to acquire information corresponding to the service including:

In a case where the first indication information indicates that the service is a dedicated connection service, sending the IP address obtaining request to a gateway, where the IP address obtaining request is used to obtain the IP address corresponding to the service device where the service is located;

The receiving unit receiving the information from the gateway includes:

Receiving the IP address from the gateway;

The sending unit sending the information to the terminal device includes:

Sending the IP address to the terminal device.

As a possible implementation manner, the receiving unit receives an information acquisition request from a terminal device, where the information acquisition request carries indication information for indicating whether the service is a dedicated connection service, and further includes:

Receiving a data acquisition request from the terminal device, the data acquisition request carrying second indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, the sending unit sends the information acquisition request to the gateway, where the information acquisition request is used to acquire information corresponding to the service and further includes:

In the case where the second indication information indicates that the service is a dedicated connection service, the data acquisition request is sent to the gateway, and the data acquisition request is used to obtain the data acquisition request from the service device corresponding to the IP address. Data corresponding to the business;

The receiving unit receiving the information from the gateway further includes:

Receiving the data from the gateway;

The sending unit sending the information to the terminal device further includes:

Sending the data to the terminal device.

As a possible implementation manner, the first indication information is the domain name of the service, and the first indication information used to indicate that the service is a dedicated connection service includes:

The domain name is a designated domain name.

As a possible implementation manner, the second indication information is the destination IP address of the data acquisition request, and the second indication information used to indicate that the service is a dedicated connection service includes:

The destination IP address of the data acquisition request is a designated IP address.

As a possible implementation manner, the first indication information is the source IP address of the IP address acquisition request, and the first indication information used to indicate that the service is a dedicated connection service includes:

The source IP address of the IP address acquisition request is a designated IP address.

As a possible implementation manner, the second indication information is the source IP address of the data acquisition request, and the second indication information used to indicate that the service is a dedicated connection service includes:

The source IP address of the data acquisition request is the designated IP address.

As a possible implementation manner, the IP address acquisition request is a DNS request or an HTTP DNS request.

As a possible implementation manner, the device further includes:

The determining unit is configured to determine that the IP address acquisition request is an HTTP DNS request when the destination IP address of the IP address acquisition request is a set IP address.

In a fifth aspect, a communication device is disclosed, including:

The receiving unit is configured to receive an information acquisition request from the control device, and the service corresponding to the information acquisition request is a dedicated connection service;

An obtaining unit, configured to obtain information corresponding to the service according to the information obtaining request when the service is a designated service;

The sending unit is configured to send the information to the control device.

As a possible implementation manner, the receiving unit is specifically configured to receive an IP address acquisition request from a control device, where the IP address acquisition request carries an identifier of the service;

The acquiring unit is specifically used for:

In the case that the service corresponding to the identifier is a designated service, sending the IP address acquisition request to the control center;

Receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the service device where the service is determined by the control center according to the gateway IP address;

The sending unit is specifically configured to send a second IP address response to the control device, where the second IP address response carries the first IP address or an IP address corresponding to the first IP address.

As a possible implementation manner, the receiving unit is specifically further configured to receive a data acquisition request from the control device;

The acquiring unit is specifically further used for:

In a case where the service corresponding to the data acquisition request and the IP address acquisition request is the same service, sending the data acquisition request to the service device corresponding to the first IP address;

Receiving a data response from the service device that carries the data of the service;

The sending unit is specifically further configured to send the data response to the control device.

As a possible implementation manner, the sending, by the obtaining unit, of the IP address obtaining request to the control center includes:

Replacing the source IP address of the IP address acquisition request with a second IP address with a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

Send a replacement IP address acquisition request to the control center;

The sending unit sending the second IP address response to the control device includes:

Replacing the destination IP address of the first IP address response from the third IP address with the second IP address to obtain a second IP address response;

Sending the second IP address response to the control device.

As a possible implementation manner, the device further includes:

A recording unit, configured to record the correspondence between the identifier and the second IP address and the first IP address or the IP address corresponding to the first IP address;

When the service corresponding to the data obtaining request and the IP address obtaining request are the same service, the obtaining unit sending the data obtaining request to the service device corresponding to the first IP address includes:

Determining that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and the first port Is the port of the terminal device, and the second port is the port of the gateway;

Sending a replacement data acquisition request to the service device corresponding to the first IP address;

The sending unit sending the data response to the control device includes:

Replacing the destination IP address of the data response from the third IP address to the second IP address, and replacing the destination port of the data response from the second port to the first port;

Send the replaced data response to the control device.

As a possible implementation manner, the sending unit replacing the destination IP address of the first IP address response from the third IP address to the second IP address, and obtaining the second IP address response includes:

Replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with the fourth IP address to obtain the second IP address response, so The fourth IP address is an IP address allocated by the gateway to identify whether the service is a dedicated connection service;

The obtaining unit replacing the source IP address of the data obtaining request from the second IP address to the third IP address, and replacing the source port of the data obtaining request from the first port to the second port includes:

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and acquire the data The requested destination IP address is replaced by the fourth IP address with the first IP address;

The sending unit replaces the destination IP address of the data response from the third IP address to the second IP address, and replaces the destination port of the data response from the second port to the first port include:

Replacing the source IP address of the data response from the first IP address to the fourth IP address, and replacing the destination IP address of the data response from the third IP address to the second IP address, The destination port of the data response is replaced by the second port with the first port.

As a possible implementation manner, the device further includes:

The first billing unit is configured to, when the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, use the terminal device and the service device according to the minimum limit traffic. Broadband billing;

The first billing unit is further configured to: when the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, according to the difference between the terminal device and the service device The broadband usage traffic is billed for the broadband used by the terminal equipment and the service equipment.

As a possible implementation manner, the device further includes:

The second billing unit is configured to, when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum limit bandwidth, use the terminal device and the service device according to the minimum limit bandwidth. Broadband is billed, and the minimum restricted bandwidth is the bandwidth corresponding to the minimum restricted traffic;

The second charging unit is further configured to: in the case that the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum bandwidth, according to the difference between the terminal device and the service device Using the bandwidth used by the broadband, billing is performed on the broadband used by the terminal device and the service device.

As a possible implementation manner, the first IP address acquisition request is a DNS request or an HTTP DNS request.

In a sixth aspect, a communication device is disclosed, including:

The receiving unit is configured to receive an IP address obtaining request from the control device, and the service corresponding to the IP address obtaining request is a dedicated connection service;

The replacement unit is configured to replace the source IP address of the IP address acquisition request from a second IP address to a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the gateway's IP address;

The sending unit is used to send a replacement IP address acquisition request to the control center;

The receiving unit is further configured to receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is determined by the control center according to the gateway The IP address of the service device where the business is located;

The replacement unit is further configured to replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with a fourth IP address To obtain a second IP address response, where the fourth IP address is an IP address allocated by the gateway for identifying whether the service is a dedicated connection service;

The sending unit is further configured to send the second IP address response to the control device.

As a possible implementation manner, the IP address acquisition request carries a service identifier, and the device further includes:

A recording unit, configured to record the correspondence between the identifier and the second IP address and the fourth IP address;

The receiving unit is further configured to receive a data acquisition request from the control device;

A determining unit, configured to determine that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

The replacement unit is further configured to replace the source IP address of the data acquisition request from the second IP address to the third IP address, and replace the source port of the data acquisition request from the first port to the first port. The second port is to replace the destination IP address of the data acquisition request from the fourth IP address to the first IP address, the first port is the port of the terminal device, and the second port is the The port of the gateway;

The sending unit is further configured to send a replacement data acquisition request to the service device corresponding to the first IP address;

The receiving unit is further configured to receive a data response from the service device, the data response carrying data of the service;

The replacement unit is further configured to replace the source IP address of the data response from the first IP address with the fourth IP address, and replace the destination IP address of the data response with the third IP address For the second IP address, replace the destination port of the data response from the second port to the first port;

The sending unit is further configured to send a replaced data response to the control device.

As a possible implementation manner, the device further includes:

A seventh aspect discloses a communication device. The communication device may be a user plane function (UPF) network element or a module (for example, a chip) in a UPF network element. The communication device may also be a broadband remote access server (broadband remote access server, BRAS) or a module (for example, chip) in the BRAS. The communication device includes a processor, a memory, an input interface, and an output interface. The input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send information to those other than the communication device. The other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor is caused to execute the communication method disclosed in the first aspect or any one of the embodiments of the first aspect.

An eighth aspect discloses a communication device, which may be a gateway (gateway, GW) or a module (for example, a chip) in the GW. The communication device includes a processor, a memory, an input interface, and an output interface. The input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send information to those other than the communication device. The other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor is caused to execute the communication method disclosed in the second aspect or any one of the second aspect.

A ninth aspect discloses a communication device, which may be a GW or a module (for example, a chip) in the GW. The communication device includes a processor, a memory, an input interface, and an output interface. The input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send information to those other than the communication device. The other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor is caused to execute the communication method disclosed in the third aspect or any one of the embodiments of the third aspect.

In a tenth aspect, a computer-readable storage medium is disclosed. The computer-readable storage medium stores a computer program or computer instruction, and when the computer program or computer instruction runs, it implements the first aspect or any implementation of the first aspect The communication method disclosed in the method, or the communication method disclosed in the second aspect or any actual manner of the second aspect, or the communication method disclosed in the third aspect or any embodiment of the third aspect.

An eleventh aspect discloses a communication system, which includes the communication device of the seventh aspect described above and the communication device of the eighth aspect described above.

A twelfth aspect discloses a communication system, which includes the communication device of the seventh aspect and the communication device of the ninth aspect.

Description of the drawings

FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention;

Figure 2 is a schematic diagram of another network architecture disclosed in an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a communication method disclosed in an embodiment of the present invention;

4 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 6 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 7 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 8 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 9 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 10 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 11 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 12 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 13 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

14 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

15 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

16 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

FIG. 17 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

18 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention;

19 is a schematic structural diagram of a communication device disclosed in an embodiment of the present invention;

20 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

FIG. 21 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

22 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

FIG. 23 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention;

Fig. 24 is a schematic structural diagram of a GW disclosed in an embodiment of the present invention.

Detailed ways

The embodiment of the present invention discloses a communication method and equipment, which are used to improve the control ability of the operator over the Internet service. Detailed descriptions are given below.

In order to better understand a communication method and device disclosed in the embodiment of the present invention, the following first describes the network architecture used in the embodiment of the present invention. Please refer to FIG. 1. FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention. As shown in Figure 1, the network architecture may include terminal equipment, optical network terminal (ONT), optical line terminal (OLT), BRAS, GW, control center, and service equipment. The network architecture may be the network architecture of a fixed network. When the service is a universally connected service, that is, when the service is a low-value service, the path of the service can be terminal equipment-ONT-OLT-BRAS-control center or terminal equipment-ONT-OLT-BRAS-service equipment. When the service is a dedicated connection service, that is, when the service is a high-value service, the path of the service can be terminal equipment-ONT-OLT-BRAS-gateway-control center or terminal equipment-ONT-OLT-BRAS-gateway-service equipment .

Please refer to FIG. 2, which is a schematic structural diagram of another network architecture disclosed in an embodiment of the present invention. As shown in Figure 2, the network architecture may include terminal equipment, radio access network (RAN) equipment, UPF network elements, GW, control center, and service equipment. The network architecture may be the network architecture of a mobile network. When the business is a universally connected business, the path of the business can be terminal equipment-RAN equipment-UPF network element-control center or terminal equipment-RAN equipment-UPF network element-service equipment. In the case where the service is a dedicated connection service, the path of the service may be terminal equipment-RAN equipment-UPF network element-gateway-control center or terminal equipment-RAN equipment-UPF network element-gateway-service equipment.

The terminal equipment can be a handheld terminal, a notebook computer, a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, and a tablet computer , Wireless modem (modem), handheld device (handheld), laptop computer (laptop computer), cordless phone (cordless phone) or wireless local loop (wireless local loop, WLL) station, machine type communication (machine type communication, MTC) terminal or other devices that can access the network. The terminal device accesses the DN by establishing a session between the terminal device-RAN device-UPF network element-data network (data, network, DN), that is, a protocol data unit (protocol data unit, PDU) session.

The OLT is used to connect to the ONT. It is a user-end device in the optical fiberization of the access network, and can be a home optical modem.

ONT, used to connect the user-end equipment in the optical fiber trunk.

BRAS is a new type of access gateway for broadband network applications. It is a bridge between the broadband access network and the backbone network, providing basic access means and management functions of the broadband access network. It is located at the edge of the network, provides broadband access services, realizes the convergence and forwarding of multiple services, and can meet the requirements of different users for transmission capacity and bandwidth utilization. It is the core equipment for broadband user access.

RAN equipment is a device that provides wireless access for terminal devices, and is mainly responsible for functions such as radio resource management on the air interface side, quality of service (QoS) flow management, data compression, and encryption. The RAN equipment may include various forms of base stations, such as macro base stations, micro base stations (also called small stations), relay stations, and access points. The RAN device may also include a wireless fidelity (WiFi) access point (AP). The RAN equipment may also include a worldwide interoperability for microwave access (WiMax) base station (BS).

The UPF network element is mainly responsible for processing user messages, such as forwarding and charging. User messages can be received from the DN and transmitted to the UE through the RAN equipment; user messages can also be received from the UE through the RAN equipment and forwarded to the DN. The transmission resources and scheduling functions of the UPF network element to provide services for the UE are managed and controlled by the SMF network element.

The GW can be a connection gateway, and when the service is a dedicated connection service, that is, a high-value service, it can realize the user's Internet access and broadband billing. The GW can be deployed on the BRAS, or it can be independent.

The control center is used to dispatch terminal equipment requests to specific service equipment, manage service equipment, etc.

Service equipment, used to provide Internet services for terminal equipment. The service device can be a server, an acceleration node, or other devices.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, the following first introduces the application scenarios used in the embodiments of the present invention. When Internet users go online and access Internet services, operators, Internet service providers, and CDN service providers may be involved.

Operators are used to deploy basic networks and provide Internet access capabilities for subscribers. After the user's terminal device is connected to the Internet, the operator will assign one or more IPs to the user's terminal device for accessing Internet services, such as web traffic and video viewing. The basic network can be a fixed network, a mobile network, etc. Operators can be telecom operators, mobile operators, China Unicom operators, etc.

Internet service providers connect their services to the Internet by purchasing bandwidth from operators to provide services to Internet users. The vast majority of Internet service providers will rent services provided by CDN service providers in order to improve user experience. Internet service providers can be video providers, shopping providers, and so on.

CDN service providers are used to cache the content that users need to access to service devices that are closer to the user's terminal device to improve the user's access speed and download rate. CDN service providers also need to purchase bandwidth from operators, connect service devices to the Internet, and send content to users' terminal devices.

Among them, ONT, OLT, BRAS, RAN equipment, UPF network elements and gateways belong to operators, and control centers and service equipment belong to CDN service providers. Various business data in the service equipment belong to the Internet service provider.

Currently, operators provide undifferentiated networks that are reachable based on IP addresses for all users' terminal devices. When a user accesses Internet services on the Internet, the user gets the IP address of all services, and the Internet service provider/CDN service provider can see the IP address of the terminal device of the accessed user. The standard transmission control protocol (TCP)/IP protocol can be used to complete the communication between the terminal device and the Internet service/CDN service. In this process, the operator has no control point for the service after providing the network route reachability.

Therefore, Internet services are also called over-the-top (OTT) services. That is, Internet companies have gone beyond operators to develop various services based on the open Internet, such as video and data services, emphasizing the irrelevance of services to the Internet.

Under the OTT business model, operators can only profit by selling bandwidth to Internet service providers/CDN service providers.

After the Internet service provider/CDN service provider purchases the bandwidth, they can fill the bandwidth with services, such as web page caching, downloading, live video streaming, and video on demand. These businesses can be high-value businesses or low-value businesses. However, due to the large gap between the bandwidth used between high-value services and low-value services, operators cannot determine whether the transmitted services are high-value services or low-value services, which reduces the operator’s control and innovation on services ability. For example, operators want to reduce bandwidth costs for virtual reality (VR) services, which can increase user bandwidth usage, but cannot control OTT vendors to use low-cost bandwidth to provide services such as web pages and downloads, thereby reducing service costs.

Based on the network architecture shown in FIG. 1 and FIG. 2, please refer to FIG. 3. FIG. 3 is a schematic flowchart of a communication method disclosed in an embodiment of the present invention. As shown in Fig. 3, the communication method may include the following steps.

301. The terminal device sends an information acquisition request to the control device.

When the user needs to obtain business information from the Internet, he can operate the terminal device so that the terminal device sends an information acquisition request to the control device. The information acquisition request may carry indication information used to indicate whether the service is a dedicated connection service. Services can include dedicated connection services and general connection services. The dedicated connection business is the business that needs to pass through the gateway, that is, the high-value business. The business of universal connection is the business that does not need to go through the gateway, namely the low-value business. The IP quintuple can include a source IP address, a destination IP address, a source port, a destination port, and a transport layer protocol. The source IP address of the information acquisition request is the IP address of the terminal device, and the source port is the port of the terminal device. The control device can be a BRAS, a UPF network element, or a device with other equivalent functions.

302. In a case where the indication information indicates that the service is a dedicated connection service, the control device sends an information acquisition request to the gateway.

After the control device receives the information acquisition request from the terminal device, it can determine, according to the instruction information carried in the information acquisition request, whether the service corresponding to the information acquisition request is a dedicated connection service or a general connection service. In the case where the indication information indicates that the service corresponding to the information acquisition request is a dedicated connection service, the control information may send the information acquisition request to the gateway. The information acquisition request can acquire the information corresponding to the service, that is, the information acquisition request can acquire the information corresponding to the service from the device corresponding to the destination IP address of the information acquisition request.

Correspondingly, when the indication information indicates that the service corresponding to the information acquisition request is a universal connection service, the control device can send the information acquisition request to the device corresponding to the destination IP address of the information acquisition request, that is, it does not need to pass through the gateway.

303. When the service is a designated service, the gateway obtains information corresponding to the service according to the information obtaining request.

The information acquisition request may also carry the identifier of the service corresponding to the information acquisition request. After the gateway receives the information acquisition request from the control device, it may first determine whether the service corresponding to the information acquisition request is a designated service according to the identifier carried in the information acquisition request. In the case of determining that the service corresponding to the information obtaining request is the designated service according to the identifier carried in the information obtaining request, it indicates that the gateway allows the service corresponding to the information obtaining request to pass through the gateway. The gateway obtains the information corresponding to the service according to the information obtaining request, which may be obtaining the information corresponding to the service from the device corresponding to the destination IP address of the information obtaining request. Correspondingly, if it is determined according to the identifier carried in the information acquisition request that the service corresponding to the information acquisition request is not a designated service, it indicates that the gateway does not allow the service corresponding to the information acquisition request to pass through the gateway, and the gateway may discard the information acquisition request. In addition, it can also send information that the service is not allowed to pass to the control device. The service identifier can be the domain name of the service or other information about the service, which is not limited here. The designated business can be a specific business or a business that meets certain conditions, such as the same type of business.

The control device can be connected to multiple gateways, and different gateways can allow different services or services that meet different conditions to pass. In one case, a white list can be set at each gateway, and each gateway can allow the services in the white list to pass. At this time, the designated business is any business in the whitelist. In another case, a condition can be set at each gateway, and each gateway can allow services that meet the condition to pass. For example, certain types of services can be allowed to pass. At this time, the designated business is a business that meets certain conditions for a specific business.

304. The gateway sends information corresponding to the service to the control device.

After obtaining the information corresponding to the service according to the information obtaining request, the gateway may send the obtained information corresponding to the service to the control device.

305. The control device sends information corresponding to the service to the terminal device.

After receiving the information corresponding to the service from the gateway, the control device can send the information corresponding to the service to the terminal device.

Optionally, step 301 may include:

3011. The terminal device sends an IP address acquisition request to the control device.

When a user needs to obtain business data from the Internet, he first needs to obtain the IP address corresponding to the service device where the business is located, that is, obtain the IP address corresponding to the service device where the business data is located, and then obtain it from the service device corresponding to the IP address Business data. Therefore, the terminal device can first send an IP address acquisition request to the control device. Correspondingly, the control device can receive an IP address acquisition request from the terminal device. That is, the IP address acquisition request is a request to acquire the IP address corresponding to the service device where the business is located. The information acquisition request carrying indication information used to indicate whether the service is a dedicated connection service may include: the IP address acquisition request carries first indication information used to indicate whether the service is a dedicated connection service. The IP address acquisition request can be a DNS request, HTTP DNS request, or other request, which is not limited here. The IP address corresponding to the service device where the business is located may be the IP address of the service device where the business is located, or may be the IP address corresponding to the IP address of the service device where the business is located. The service device can be a server, an acceleration node, or other devices with equivalent functions.

Step 302 may include:

3021. In a case where the first indication information indicates that the service is a dedicated connection service, the control device sends an IP address acquisition request to the gateway.

Correspondingly, the gateway receives the IP address acquisition request from the control device. The information obtaining request used to obtain the information corresponding to the service may include: the IP address obtaining request is used to obtain the IP address corresponding to the service device where the service is located.

The first indication information may be the domain name of the service. The first indication information indicates that the service is a dedicated connection service, and the domain name of the service may be a designated domain name. Different domain names can be set for different connected services, so that different domain names can be used to determine whether the service is a dedicated connection service or a general connection service. For example, the domain name of the universal connection service used to obtain a certain video source is xxx.com, and the domain name of the dedicated connection service used to obtain this video source is VR.xxx.com. The control device may pre-store the domain name in the domain name used to obtain the service of the dedicated connection.

The first indication information may also be the source IP address of the IP address acquisition request. The first indication information indicates that the service is a dedicated connection service, or it may be that the source IP address of the IP address acquisition request is a designated IP address. Two IP addresses can be deployed for each terminal device, one IP address can be used to obtain dedicated connection services, and the other IP address can be used to obtain general connection services. In the case that the service that the terminal device needs to obtain is a dedicated connection service, the source IP address of the IP address obtaining request may be set as the IP address used to obtain the dedicated connection service. In the case that the service that the terminal device needs to obtain is a universal connection service, the source IP address of the IP address acquisition request may be set as the IP address used to obtain the universal connection service. The control device may pre-store the IP address of the terminal device for obtaining the service of the dedicated connection. At this time, the designated IP address is the IP address of the terminal device used to obtain the service of the dedicated connection.

Step 303 may include:

3031. In the case that the service corresponding to the service identifier is a designated service, the gateway sends an IP address acquisition request to the control center;

3032. The control center sends a first IP address response to the gateway.

After the gateway receives the IP address acquisition request from the control device, if the service corresponding to the service identifier is a designated service, it indicates that the gateway allows the service corresponding to the IP address acquisition request to pass through the gateway, and the gateway can send the IP address acquisition to the control center request. After the control center receives the IP address acquisition request from the gateway, it can determine the first IP address of the service device where the service is located according to the gateway. You can first determine all service devices that can provide the service according to the service identifier, and then select a service device from all the determined service devices according to the gateway, and then determine the IP address of the selected service device as the first service device where the service is located. An IP address, and then a first IP address response carrying the first IP address can be sent to the gateway. When the control center selects the service device, it can select the service device that is closest to the gateway, or the service device that is close to the gateway but has a small load, and can also be selected based on the distance to the gateway and other factors , No restrictions here. The control center is the control center corresponding to the destination IP address of the IP address acquisition request.

Optionally, after the gateway receives the IP address acquisition request from the control device, it may first replace the source IP address of the IP address acquisition request from the second IP address to the third IP address, and then may send the replacement source IP address to the control center The subsequent IP address acquisition request can ensure that the Internet service provider/CDN service provider cannot see the IP address of the terminal device. The second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway.

Step 304 may include:

3041. The gateway sends a first IP address response to the control device.

After the gateway receives the first IP address response from the control center, it can send the second IP address response to the control device. The second IP address response carries the first IP address or the IP address corresponding to the first IP address. The gateway may record the correspondence between the service identifier and the second IP address and the first IP address, and may also record the correspondence between the second IP address and the IP address corresponding to the first IP address.

Optionally, after the gateway receives the first IP address response from the control center, it can first replace the destination IP address of the first IP address response from the third IP address to the second IP address to obtain the second IP address response, and then Send a second IP address response to the control device. The second IP address response carries the first IP address. At this time, the gateway records the correspondence between the service identifier and the second IP address and the first IP address.

Optionally, when the destination IP address of the first IP address response is replaced by the third IP address to the second IP address to obtain the second IP address response, not only can the destination IP address of the first IP address response be replaced by the third IP address The address is replaced with the second IP address, and the first IP address carried in the first IP address response can be replaced with the fourth IP address to obtain the second IP address response, which can ensure that the user of the terminal device cannot see the Internet service provider/CDN The IP address of the service provider. The fourth IP address is the IP address assigned by the gateway to identify whether the service is a dedicated connection service, that is, the fourth IP address is the IP address of the service where the service is a dedicated connection, which can ensure that the service is identified as a dedicated connection through the IP address Business. The second IP address response carries the fourth IP address corresponding to the first IP address. At this time, the gateway may record the correspondence between the first IP address and the fourth IP address. At the same time, the correspondence between the service identifier and the second IP address and the fourth IP address can also be recorded.

Step 305 may include:

3051. The control device sends a second IP address response to the terminal device.

After receiving the second IP address response from the gateway, the control device may send the second IP address response to the terminal device.

Optionally, step 301 may also include:

3012. The terminal device sends a data acquisition request to the control device.

After receiving the second IP address response from the control device, the terminal device can parse the second IP address response to obtain the IP address corresponding to the service device where the business is located. Then, a data acquisition request can be sent to the control device with this IP address as the destination IP address, so as to acquire the data of the service from the service device corresponding to the IP address. The information acquisition request carrying indication information for indicating whether the service is a dedicated connection service may also include: the data acquisition request carrying second indication information for indicating whether the service is a dedicated connection service.

Step 302 may also include:

3022. In a case where the second indication information indicates that the service is a dedicated connection service, the control device sends a data acquisition request to the gateway.

Correspondingly, the gateway receives the data acquisition request from the control device. The information acquisition request used to acquire information corresponding to the service may also include: the data acquisition request is used to obtain service data from the service device corresponding to the IP address.

The second indication information may be the destination IP address of the data acquisition request. The second indication information is used to indicate that the service is a dedicated connection service, and may be that the destination IP address of the data acquisition request is a designated IP address. A service device can be deployed with only the IP address of the dedicated connection service, or only the IP address of the service with general connection, or both the IP address of the service with dedicated connection and the IP address of the service with general connection. . In the case that the control center receives the IP address acquisition request from the gateway, it can assign the service IP address of the dedicated connection service of the service device to the service. At this time, the designated IP address is the first IP address. It is also possible to deploy an IP address for each service device. This IP address can be the IP address of a dedicated connection service or the IP address of a general connection service. After the gateway receives the first IP address response, the dedicated IP address can be used. The IP address of the connected service replaces the first IP address. Such as the fourth IP address. At this time, the designated IP address is the fourth IP address.

The second indication information may also be the source IP address of the data acquisition request. The second indication information is used to indicate that the service is a dedicated connection service, and may also be that the source IP address of the data acquisition request is a designated IP address. Two IP addresses can be deployed for each terminal device, one IP address can be used to obtain dedicated connection services, and the other IP address can be used to obtain general connection services. In the case that the service that the terminal device needs to obtain is a dedicated connection service, the source IP address of the IP address obtaining request may be set as the IP address used to obtain the dedicated connection service. In the case that the service that the terminal device needs to obtain is a service of a general connection, the source IP address of the IP address obtaining request can be set as the IP address used to obtain the service of the general connection. The control device may pre-store the IP address of the terminal device for obtaining the service of the dedicated connection. At this time, the designated IP address is the IP address of the terminal device used to obtain the service of the dedicated connection.

Step 303 may also include:

3032. In a case where the business corresponding to the data acquisition request and the IP address acquisition request are the same business, the gateway sends a data acquisition request to the service device corresponding to the first IP address;

3033. The service device sends a data response carrying service data to the gateway.

After the gateway receives the data acquisition request from the control device, if the service corresponding to the data acquisition request and the IP address acquisition request is the same service, it indicates that the gateway allows the service corresponding to the information acquisition request to pass through the gateway, and the gateway can send the first IP address The service device corresponding to the address sends a data acquisition request. After receiving the data acquisition request from the gateway, the service device can acquire the data of the service, and then can send a data response carrying the data of the service to the gateway.

After the gateway receives the data acquisition request from the control device, it can first determine that the business corresponding to the data acquisition request and the IP address acquisition request is the same business according to the corresponding relationship between the recorded identifier and the source IP address and destination IP address of the data acquisition request. . When the source IP address and the destination IP address of the data acquisition request are the same as the two IP addresses in the corresponding relationship, it is determined that the services corresponding to the data acquisition request and the IP address acquisition request are the same business.

Optionally, after the gateway receives the data acquisition request from the control device, it may first replace the source IP address of the data acquisition request from the second IP address with the third IP address, and replace the source port of the data acquisition request with the first port. It is the second port, and then sends the replaced data acquisition request to the service device corresponding to the first IP address. The first port is the port of the terminal device, and the second port is the port of the gateway. The replaced data acquisition request may carry the service identifier, so that the service device can obtain the data of the service according to the service identifier.

Optionally, when the gateway replaces the source IP address of the data acquisition request from the second IP address with the third IP address, and replaces the source port of the data acquisition request from the first port to the second port, the source of the data acquisition request can be changed The IP address is replaced from the second IP address to the third IP address, the source port of the data acquisition request is replaced from the first port to the second port, and the destination IP address of the data acquisition request is replaced from the fourth IP address to the first IP address .

Step 304 may also include:

3042. The gateway sends a data response to the control device.

After the gateway receives the data response from the service device, it can send the data response to the control device. The data response carries business data.

Optionally, after the gateway receives the data response from the service device, it can first replace the destination IP address of the data response from the third IP address to the second IP address, and replace the destination port of the data response from the second port to the first. Port, and then send the replaced data response to the control device.

Optionally, when the gateway replaces the destination IP address of the data response from the third IP address to the second IP address, and replaces the destination port of the data response from the second port to the first port, the source IP address of the data response can be replaced by The first IP address is replaced with the fourth IP address, the destination IP address of the data response is replaced from the third IP address to the second IP address, and the destination port of the data response is replaced from the second port to the first port, which can ensure The user of the terminal device cannot see the IP address of the Internet service provider/CDN service provider.

Step 305 may also include:

3052. The control device sends a data response to the terminal device.

After the control device receives the data response from the gateway, it can send the data response to the terminal device. The terminal device receives the data response from the control device.

In the OTT business model, because operators cannot control the content of services transmitted in broadband and the users who transmit them, the cost is required when Internet service providers/CDN service providers need to purchase broadband with large bandwidth for transmission of high-value services Higher. In order to reduce the purchase cost of Internet service providers/CDN service providers, it is possible to improve the control capabilities of operators in broadband. In the case where the operator monitors that the transmitted service is a high-value service, that is, a dedicated connection service, charging can be performed separately. In the case of monitoring the transmitted low-value service, that is, the service of the universal connection, the existing charging method can be used for charging.

Optionally, in the communication between the terminal device and the service device, that is, when the terminal device obtains service data from the service device, that is, when the terminal device is surfing the Internet, the gateway can access the broadband that the terminal device and the service device use. Perform billing. The minimum limit flow can be set. When the broadband flow used between the terminal device and the service device is less than the minimum limit flow, the broadband used by the terminal device and the service device can be billed according to the minimum limit flow. When the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, the broadband used by the terminal device and the service device is billed according to the broadband usage traffic between the terminal device and the service device. That is, when the Internet traffic of the terminal device is less than the minimum limit flow, billing is based on the minimum limit flow, and when the Internet traffic of the terminal device is greater than or equal to the minimum limit flow, the billing is based on the actual usage flow. Among them, the minimum restricted traffic is specified by the operator according to the business needs. For example, the minimum traffic limit for a dedicated connection service for 4K video is 20 Mbps, and the minimum traffic limit for a dedicated connection service for 8K VR video is 80 Mbps. Operators can provide a variety of dedicated connections with different minimum flow rates at the same time for CDN service providers to choose according to their needs.

Through this billing method, it is economically avoided that CDN manufacturers fill a large amount of low-value (low-bandwidth) content in high-value connections.

Optionally, the lowest limit traffic can be set, and the lowest limit bandwidth corresponding to the lowest limit traffic can be calculated first. In the case that the bandwidth of the broadband used between the terminal device and the service device is less than the minimum limit bandwidth, the terminal device and The broadband used by the service equipment is billed. In the case that the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum bandwidth, the broadband used by the terminal device and the service device is billed according to the bandwidth used between the terminal device and the service device. That is, when the Internet access bandwidth of the terminal device is less than the lowest limit bandwidth corresponding to the lowest limit traffic, billing is based on the lowest limit bandwidth, and when the Internet traffic of the terminal device is greater than or equal to the lowest limit bandwidth, billing is based on the actual bandwidth used.

Based on the network architecture shown in FIG. 1 and FIG. 2, please refer to FIG. 4. FIG. 4 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in Fig. 4, the communication method may include the following steps.

401. The terminal device sends an IP address acquisition request carrying the first indication information to the control device.

Among them, step 401 is similar to step 3011. For detailed description, please refer to step 3011, which will not be repeated here.

402. In a case where the first indication information indicates that the service is a dedicated connection service, the control device sends an IP address acquisition request to the gateway.

Wherein, step 402 is the same as step 3021, for detailed description, please refer to step 3021, which will not be repeated here.

403. The gateway replaces the source IP address of the IP address acquisition request with the third IP address from the second IP address.

After the gateway receives the IP address acquisition request from the control device, it can first replace the source IP address of the IP address acquisition request from the second IP address to the third IP address, which can ensure that the Internet service provider/CDN service provider cannot see the terminal device IP address. The second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway.

404. The gateway sends a replacement IP address acquisition request to the control center.

After the gateway replaces the source IP address of the IP address acquisition request from the second IP address to the third IP address, it may send the replaced IP address acquisition request to the control center.

405. The control center sends a first IP address response carrying the first IP address to the gateway.

Among them, step 405 is similar to step 3032, and for detailed description, please refer to the description corresponding to step 3032, which will not be repeated here.

406. The gateway replaces the destination IP address of the IP address response from the third IP address with the second IP address, and replaces the first IP address with the fourth IP address, to obtain the second IP address response.

407. The gateway sends a second IP address response to the control device.

For detailed description of step 406 and step 407, reference may be made to the corresponding description of step 3041.

408. The gateway records the correspondence between the service identifier and the second IP address and the fourth IP address.

The gateway replaces the destination IP address of the first IP address response from the third IP address to the second IP address, and replaces the first IP address to the fourth IP address to obtain the second IP address response, and can record the service ID and the first IP address. Correspondence between the second IP address and the fourth IP address.

409. The control device sends a second IP address response to the terminal device.

410. The terminal device sends a data acquisition request carrying the second indication information to the control device.

Wherein, step 410 is similar to step 3012. For detailed description, please refer to step 3012, which will not be repeated here.

411. In a case where the second indication information indicates that the service is a dedicated connection service, the control device sends a data acquisition request to the gateway.

Among them, step 411 is similar to step 3022, and for detailed description, please refer to step 3022, which will not be repeated here.

412. The gateway determines that the services corresponding to the data acquisition request and the IP address acquisition request are the same business according to the correspondence relationship and the source IP address and the destination IP address of the data acquisition request.

413. The gateway replaces the source IP address of the data acquisition request from the second IP address with the third IP address, the source port from the first port to the second port, and the destination IP address from the fourth IP address to the first IP address.

414. The gateway sends the replaced data acquisition request to the service device corresponding to the first IP address.

For the detailed description of step 412 to step 414, please refer to the corresponding description of step 3032.

415. The service device sends a data response carrying service data to the gateway.

Among them, step 415 is similar to step 3033. For detailed description, please refer to step 3033, which will not be repeated here.

416. The gateway replaces the source IP address of the data response from the first IP address to the fourth IP address, the destination IP address from the third IP address to the second IP address, and the destination port from the second port to the first port.

417. The gateway sends the replaced data response to the control device.

For step 416 and step 417, reference may be made to the description corresponding to step 3042.

418. The control device sends the replaced data response to the terminal device.

After the control device receives the replaced data response from the gateway, it can send the replaced data response to the terminal device. The terminal device receives the replaced data response from the control device.

Optionally, when the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, the broadband used by the terminal device and the service device can be billed according to the minimum limit traffic; use between the terminal device and the service device In the case that the broadband traffic is greater than or equal to the minimum limit traffic, the broadband used by the terminal equipment and the service equipment can be billed according to the broadband usage traffic between the terminal equipment and the service equipment.

Optionally, the lowest limit bandwidth corresponding to the lowest limit traffic can be calculated. When the bandwidth of the broadband used between the terminal device and the service device is less than the lowest limit bandwidth, the bandwidth used by the terminal device and the service device can be performed according to the lowest limit bandwidth. Billing; when the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum bandwidth, the broadband used by the terminal device and the service device is billed according to the bandwidth used between the terminal device and the service device .

For the detailed description of each part above, reference may be made to the corresponding description in the previous embodiment.

Based on the network architecture shown in FIG. 1, please refer to FIG. 5. FIG. 5 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in Fig. 5, the communication method may include the following steps.

The IP address of the service device where the business is located is IP1. The IP address of the terminal device is IP2. The IP address of the gateway is IP3. The IP address provided in the gateway with the service proxy function is IP4, which is the IP address of the service used for the dedicated connection. The IP address of the control center is IP5. The BRAS stores the IP address with proxy function set in the gateway. The first indication information is the domain name of the service, and the second indication information is IP4.

501. The terminal device sends an IP address acquisition request to the BRAS through the ONT and the OLT.

When the terminal device needs service data, it can first send an IP address acquisition request to the BRAS through the ONT and OLT. The source IP address of the IP address acquisition request is IP2. The destination IP address of the IP address acquisition request is IP5. The IP address acquisition request carries the domain name of the service. For example, the domain name can be xxx.com or VR.xxx.com.

The terminal device may first send an IP address acquisition request to the ONT. After receiving the IP address acquisition request from the terminal device, the ONT can send an IP address acquisition request to the OLT. The OLT receives the IP address acquisition request from the ONT, and can send the IP address acquisition request to the BRAS.

502. When the service corresponding to the domain name is a universal connection service, the BRAS sends an IP address acquisition request to the control center.

After the BRAS receives the IP address acquisition request from the OLT, it can resolve the domain name of the service. In the case that the service corresponding to the resolved domain name is a universal connection service, the BRAS may send an IP address acquisition request to the control center.

Optionally, after the BRAS receives the IP address acquisition request from the OLT, it can first determine whether the packet corresponding to the IP address acquisition request is DNS, and resolves only when it determines that the packet corresponding to the IP address acquisition request is DNS The domain name of the business.

503. The control center sends an IP address response carrying IP1 to the terminal device through the BRAS, OLT and ONT.

After the control center receives the IP address acquisition request from the BRAS, it indicates that the service is a universal connection service. It can select the service device with the best service quality according to the IP address IP2 of the terminal device, and then send an IP address response carrying IP1 to the BRAS. IP1 is the IP address of the selected service device. After the BRAS receives the IP address response from the control center, it can send the IP address response to the OLT. After receiving the IP address response from the BRAS, the OLT can send an IP address response to the ONT. After receiving the IP address response from the OLT, the ONT can send an IP address response to the terminal device.

When selecting the service equipment with the best service quality, you can select the service equipment with the closest distance to the terminal equipment, or select the service equipment with a short distance from the terminal equipment and a small load. It can also be based on the distance from the terminal equipment and other services. Factors are selected.

504. The terminal device obtains service data from the service device corresponding to IP1 through the ONT, OLT, and BRAS.

After receiving the IP address response from the ONT, the terminal device can obtain IP1 according to the IP address response, that is, it can resolve IP1 from the domain name. Afterwards, a data acquisition request can be initiated to the service device corresponding to IP1 through the ONT, OLT, and BRAS. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the BRAS, OLT, and ONT. The data acquisition request may be an HTTP request.

505. When the service corresponding to the domain name is a dedicated connection service, the BRAS sends an IP address acquisition request to the gateway.

When the service corresponding to the resolved domain name is a dedicated connection service, it indicates that the service can pass through the gateway, and the BRAS can send an IP address acquisition request to the gateway.

506. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

After the gateway receives the IP address acquisition request from the BRAS, it can replace the source IP address of the IP address acquisition request from IP2 to IP3, and then can send the replaced IP address acquisition request to the control center, which can guarantee the Internet service provider/CDN service The vendor cannot see the IP address of the terminal device.

507. The control center sends an IP address response carrying IP1 to the gateway.

After the control center receives the replaced IP address acquisition request from the gateway, it can select the service device with the best service quality according to the gateway, and then return an IP address response carrying IP1 to the gateway. When selecting the service device with the best service quality, you can choose the service device that is closest to the gateway, or the service device that is closer to the gateway and has a smaller load, and can also be based on the distance to the gateway and other factors. Select. IP1 in step 503 and step 507 can be the same IP address or different IP addresses.

508. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and IP1 to IP4, and sends the replaced IP address response to the terminal device through the BRAS, OLT and ONT.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and replace the IP1 carried in the IP address response with IP4, and then send the replacement to the terminal device through the BRAS, OLT and ONT. The IP address response can ensure that the terminal device cannot see the IP address of the Internet service provider/CDN service provider. In addition, the correspondence between IP1 and IP4 can also be recorded.

509. The terminal device sends a data acquisition request to the BRAS through the ONT and the OLT.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address response. Afterwards, a data acquisition request can be sent to the BRAS through the ONT and OLT. The source IP address of the data acquisition request is IP2, the destination IP address is IP4, the source port is the port of the terminal device, and the destination port is the port of the service device.

510. The BRAS determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

511. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the destination IP address from IP4 to IP1, and the source port from the terminal device port to the gateway port, and sends the replaced data to the service device corresponding to IP1 Get the request.

After the gateway receives the data acquisition request, it can replace the source IP address of the data acquisition request from IP2 to IP3. According to the correspondence between IP4 and IP1, the destination IP address can be replaced from IP4 to IP1, so that service data can be obtained from the service device corresponding to IP1. And replace the source port from the port of the terminal device with the port of the gateway. After that, the replaced data acquisition request can be sent to the service device corresponding to IP1.

512. The service device sends a data response to the gateway.

513. The gateway replaces the destination IP address of the data response from IP3 to IP2, the source IP address from IP1 to IP4, the destination port from the gateway port to the terminal device port, and the replacement is sent to the terminal device through the BRAS, OLT and ONT. Data response.

Among them, step 501 to step 504 are the flow of the universal connection service. Step 501, Step 505-Step 513 are dedicated connection service procedures, which can ensure that the user of the terminal device cannot see the IP address of the ISP/CDN service provider, and at the same time, it can ensure that the ISP/CDN service provider cannot see the terminal. The IP address of the device.

For detailed descriptions related to the above steps, reference may be made to the corresponding descriptions in the above embodiments.

Based on the network architecture shown in FIG. 1, please refer to FIG. 6. FIG. 6 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 6, the communication method may include the following steps.

A service device can be deployed with only the IP address of the dedicated connection service, or only the IP address of the service with general connection, or both the IP address of the service with dedicated connection and the IP address of the service with general connection. . The IP address of the service of the dedicated connection of the service device may be IP4, and the IP address of the service of the general connection of the service device may be IP1. Therefore, the service can be identified as a dedicated connection service through the IP address of the service device. Operators can automatically or manually send all service equipment to the BRAS the IP addresses of dedicated connection services. The first indication information may be the domain name of the service, and the second indication information may be IP4, that is, the IP address of the service device where the service is located. The IP address of the terminal device is IP2, the IP address of the gateway is IP3, and the IP address of the control center is IP5.

601. The terminal device sends an IP address acquisition request to the BRAS through the ONT and the OLT.

Wherein, step 601 is the same as step 501. For detailed description, please refer to step 501, which will not be repeated here.

602. When the service corresponding to the domain name is a universal connection service, the BRAS sends an IP address acquisition request to the control center.

Wherein, step 602 is the same as step 502. For detailed description, please refer to step 502, which will not be repeated here.

603. The control center sends an IP address response carrying IP1 to the terminal device through the BRAS, OLT and ONT.

Among them, step 603 is similar to step 503. For detailed description, please refer to step 503, which will not be repeated here. In addition, when the control center selects the service device, it selects the service device deployed with the universal connection service, that is, it selects from the service device corresponding to the IP address of the service deployed with the universal connection, that is, it selects from the service equipment deployed with the universal connection The service device corresponding to the service IP address of the service device includes the service device that needs to obtain the service data selected, so as to ensure that the selected service device is deployed with the service data to be obtained.

604. The terminal device obtains service data from the service device corresponding to IP1 through the ONT, OLT, and BRAS.

Wherein, step 604 is the same as step 504. For detailed description, please refer to step 504, which will not be repeated here.

605. When the service corresponding to the domain name is a dedicated connection service, the BRAS sends an IP address acquisition request to the gateway.

Wherein, step 605 is the same as step 505. For detailed description, please refer to step 505, which will not be repeated here.

606. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

Wherein, step 606 is the same as step 506. For detailed description, please refer to step 506, which will not be repeated here.

607. The control center sends an IP address response carrying IP4 to the gateway.

After the control center receives the replaced IP address acquisition request from the gateway, it indicates that the service is a dedicated connection service. The service device with the best service quality can be selected according to the gateway, and then the IP address response carrying IP4 is returned to the gateway. When selecting the service device with the best service quality, you can choose the service device that is closest to the gateway, or the service device that is closer to the gateway and has a smaller load, and can also be based on the distance to the gateway and other factors. Select. When the control center selects the service equipment, it selects the service equipment with the dedicated connection service, that is, it selects from the service equipment corresponding to the IP address of the service where the dedicated connection is deployed, that is, from the service where the dedicated connection is deployed The service device corresponding to the IP address of the selected service device includes the service device that needs to obtain the service data, so as to ensure that the selected service device is deployed with the service data to be obtained. Among them, the dedicated connection service and the general connection service can be deployed on one service device or on different service devices.

608. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and sends the replaced IP address response to the terminal device through the BRAS, OLT and ONT.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and then send the replaced IP address response to the terminal device through the BRAS, OLT and ONT.

609. The terminal device sends a data acquisition request to the BRAS through the ONT and the OLT.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address. Afterwards, a data acquisition request can be sent to the BRAS through the ONT and OLT. The source IP address of the data acquisition request is IP2, the destination IP address is IP4, the source port is the port of the terminal device, and the destination port is the port of the service device.

610. The BRAS determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

611. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP4.

After the gateway receives the data acquisition request, it can replace the source IP address of the data acquisition request from IP2 to IP3, and replace the source port from the port of the terminal device to the port of the gateway. Then send the replaced data acquisition request to the service device corresponding to IP4.

612. The service device sends a data response to the gateway.

613. The gateway replaces the destination IP address of the data response from IP3 to IP2, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data response to the terminal device through the BRAS, OLT and ONT.

Among them, step 601-step 604 are the flow of the universal connection service. Step 601, step 605-step 613 are the processes of dedicated connection services.

Based on the network architecture shown in FIG. 1, please refer to FIG. 7. FIG. 7 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 7, the communication method may include the following steps.

Two IP addresses can be deployed for each terminal device. One IP address is the IP address used to obtain the dedicated connection service, which is IP4, and the other IP address is the IP address used to obtain the general connection service, which is IP2. Therefore, the service can be identified as a dedicated connection service through the IP address of the terminal device. Operators can divide a separate virtual local area network (VLAN) for users who use dedicated connection services, and assign separate IP addresses. All terminal devices can be used to obtain dedicated connection services automatically or manually. The IP address is delivered to the BRAS. The first indication information and the second indication information are IP4. The IP address of the service device where the business is located is IP1. The IP address of the gateway is IP3. The IP address of the control center is IP5.

701. The terminal device sends an IP address acquisition request to the BRAS through the ONT and the OLT.

In the case that the service that the terminal device needs to obtain is a universal connection service, an IP address obtaining request can be sent to the BRAS through the ONT and OLT. The source IP address of the IP address acquisition request is IP2, and the destination IP address of the IP address acquisition request is IP5.

The terminal device can send an IP address acquisition request to the ONT. The ONT receives the IP address acquisition request from the terminal device, and can send the IP address acquisition request to the OLT. The OLT receives the IP address acquisition request from the ONT, and can send the IP address acquisition request to the BRAS.

702. When the source IP address of the IP address acquisition request is IP2, the BRAS sends an IP address acquisition request to the control center.

After the BRAS receives the IP address acquisition request from the OLT, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. When the source IP address is IP2, it indicates that the service is a universal connection service, and the BRAS can The control center sends an IP address acquisition request.

703. The control center sends an IP address response carrying IP1 to the terminal device through the BRAS, OLT, and ONT.

Among them, step 703 is the same as step 503. For detailed description, please refer to step 503, which will not be repeated here.

704. The terminal device obtains service data from the service device corresponding to IP1 through the ONT, OLT, and BRAS.

After receiving the IP address response from the ONT, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the ONT, OLT, and BRAS. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the BRAS, OLT, and ONT. The data acquisition request may be an HTTP request. The source IP address of the data acquisition request is IP2, and the destination IP address is IP1.

705. The terminal device sends an IP address acquisition request to the BRAS through the ONT and the OLT.

In the case that the service that the terminal device needs to obtain is a dedicated connection service, the ONT and OLT can send an IP address obtaining request to the BRAS. The source IP address of the IP address acquisition request is IP4, and the destination IP address is IP5.

706. When the source IP address of the IP address acquisition request is IP4, the BRAS sends an IP address acquisition request to the gateway.

After the BRAS receives the IP address acquisition request from the OLT, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. When the source IP address is IP4, it indicates that the service is a dedicated connection service, and the BRAS can send The gateway sends an IP address acquisition request.

707. The gateway replaces the source IP address of the IP address acquisition request from IP4 to IP3, and sends the replaced IP address acquisition request to the control center.

708. The control center sends an IP address response carrying IP1 to the gateway.

Wherein, step 708 is the same as step 507. For detailed description, please refer to step 507, which will not be repeated here. In addition, IP1 in step 703 and step 708 may be the same IP address or different IP addresses.

709. The gateway replaces the destination IP address of the IP address response from IP3 to IP4, and sends the replaced IP address response to the terminal device through the BRAS, OLT, and ONT.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP4, and then send the replaced IP address response to the terminal device through the BRAS, OLT and ONT.

710. The terminal device sends a data acquisition request to the BRAS through the ONT and the OLT.

After the terminal device receives the replaced IP address response, it can obtain IP1 according to the replaced IP address response. Afterwards, a data acquisition request can be sent to the BRAS through the ONT and OLT. The source IP address of the data acquisition request is IP4, the destination IP address is IP1, the source port is the port of the terminal device, and the destination port is the port of the service device.

711. The BRAS determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

712. The gateway replaces the source IP address of the data acquisition request from IP4 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

713. The service device sends a data response to the gateway.

714. The gateway replaces the destination IP address of the data response from IP3 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data response to the terminal device through the BRAS, OLT and ONT.

Among them, step 701 to step 704 are the flow of the universal connection service. Steps 705-714 are the processes of dedicated connection services.

At present, when some Internet service providers/CDN service providers support the HTTP DNS scheduling function, the HTTP protocol can be used to complete the resolution of domain names and IP addresses, which can avoid problems such as domain name hijacking in the DNS protocol. Please refer to FIG. 8, which is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in Figure 8, in solution 1, the IP address of the HTTP DNS control center of the Internet service provider/CDN service provider can be configured to the BRAS in advance. After the BRAS receives the IP address acquisition request from the terminal device through the ONT and OLT, You can determine whether the IP address acquisition request is a DNS request or an HTTP DNS request according to the destination IP address of the IP address acquisition request. The destination IP address of the IP address acquisition request belongs to the stored IP address of the HTTP DNS server of the Internet service provider/CDN service provider In this case, it can be determined that the IP address acquisition request is an HTTP DNS request, which can be processed in accordance with a similar DNS protocol. The data acquisition request is an HTTP GET request, and the data response is an HTTP response. In scheme 2, the terminal device uses the DNS protocol, that is, the IP address acquisition request sent by the terminal device is a DNS request. The control center uses the HTTP protocol, that is, the IP address response sent by the control center is an HTTP DNS response. Therefore, after the gateway receives the IP address acquisition request, it can convert the IP address acquisition request from a DNS request to an HTTP DNS request, and then send the converted IP address acquisition request to the control center. After the gateway receives the IP address response from the control center, it can convert the IP address response from the HIIP DNS response to the DNS response, and then send it to the terminal device. The data acquisition request is an HTTP GET request, and the data response is an HTTP response. For the detailed description of the scheme 1 and scheme 2, please refer to the corresponding description in the embodiment corresponding to FIG. 5.

When the terminal device is a mobile terminal, there are many types of external networks that the terminal device can access, such as the Internet, a wireless application protocol (WAP) network, and an enterprise private network. In 4G mobile networks, terminal devices can use access point names (APN) to distinguish access network types. You can access the specific network of a specific operator by setting the mobile network + APN parameters on the mobile phone. In a 5G mobile network, terminal devices can use data network name (DNN) to distinguish access network types. The purpose and setting method of DNN are similar to APN. A terminal can access multiple APN/DNN at the same time, and access different networks on demand. Every time an APN/DNN is connected, the mobile network will assign an IP address of the corresponding network of the APN/DNN to the terminal device. The terminal device selects an IP address to initiate a request according to the needs, and then can access the APN/DNN network corresponding to the IP address.

Based on the network architecture shown in FIG. 2, please refer to FIG. 9. FIG. 9 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 9, the communication method may include the following steps.

The IP address of the service device where the business is located is IP1. The IP address of the terminal device is IP2. The IP address of the gateway is IP3. The IP address with proxy function set in the gateway is IP4, which is an IP address used for a dedicated connection service. The IP address of the control center is IP5. The UPF network element stores an IP address with proxy function set in the gateway. The first indication information is the domain name of the service, and the second indication information is IP4.

The following takes 5G as an example for description. Operators do not add DNNs and use DNN1 to uniformly carry the traffic of dedicated connection services and the traffic of general connection services. The 5G core network anchors the PDU session of DNN1 to the provincial UPF according to the network plan.

901. The terminal device sends an IP address acquisition request to the UPF network element through the RAN device.

When the terminal device needs to obtain service data, it may first send an IP address obtaining request to the UPF network element through the RAN device. The source IP address of the IP address acquisition request is IP2. The destination IP address of the IP address acquisition request is IP5. The IP address acquisition request carries the domain name of the service.

The terminal device may first send an IP address acquisition request to the RAN device through the wireless interface. After the RAN device receives the IP address acquisition request from the terminal device, it can package the IP address acquisition request in the PDU session of the terminal device, and send the IP address acquisition request to the provincial UPF network element through the tunnel protocol.

902. When the service corresponding to the domain name is a universal connection service, the UPF network element sends an IP address acquisition request to the control center.

After the UPF network element receives the IP address acquisition request from the RAN device, that is, after opening the tunnel, it can resolve the domain name of the service in the IP address acquisition request. In the case where the service corresponding to the resolved domain name is a universal connection service, the UPF network element may send an IP address acquisition request to the control center.

Optionally, after the UPF network element receives the IP address acquisition request from the RAN device, it may first determine whether the packet corresponding to the IP address acquisition request is DNS, and if it is determined that the packet corresponding to the IP address acquisition request is DNS , To resolve the IP address to obtain the domain name of the service in the request.

903. The control center sends an IP address response carrying IP1 to the terminal device through the UPF network element and the RAN device.

After the control center receives the IP address acquisition request from the UPF network element, it indicates that the service is a universal connection service. The service device with the best service quality can be selected according to the IP address IP2 of the terminal device, and then the UPF network element and the RAN device are used to send the service The device sends an IP address response carrying IP1. IP1 is the IP address of the selected service device. After the UPF network element receives the IP address response from the control center, it can send the IP address response to the RAN device. After receiving the IP address response from the UPF network element, the RAN device can send the IP address response to the terminal device.

904. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the UPF network element.

After receiving the IP address response from the RAN device, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the RAN device and the UPF network element. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the UPF network element and the RAN device.

905. When the service corresponding to the domain name is a dedicated connection service, the UPF network element sends an IP address acquisition request to the gateway.

When the service corresponding to the resolved domain name is a dedicated connection service, it indicates that the service can pass through the gateway, and the UPF network element can send an IP address acquisition request to the gateway.

906. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

907. The control center sends an IP address response carrying IP1 to the gateway.

After the control center receives the replaced IP address acquisition request from the gateway, it can select the service device with the best service quality according to the gateway, and then return an IP address response carrying IP1 to the gateway. When selecting the service device with the best service quality, you can choose the service device that is closest to the gateway, or the service device that is closer to the gateway and has a smaller load, and can also be based on the distance to the gateway and other factors. Select. IP1 in step 903 and step 907 may be the same IP address or different IP addresses.

908. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and IP1 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and replace the IP1 carried in the IP address response with IP4, and then send the replacement to the terminal device through the UPF network element and the RAN device After the IP address responds. In addition, the correspondence between IP1 and IP4 can also be recorded.

909. The terminal device sends a data acquisition request to the UPF network element through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address response. After that, a data acquisition request can be sent to the UPF network element through the RAN device. The source IP address of the data acquisition request is IP2, the destination IP address is IP4, the source port is the port of the terminal device, and the destination port is the port of the service device.

910. The UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

911. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the destination IP address from IP4 to IP1, and the source port from the terminal device port to the gateway port, and sends the replaced data to the service device corresponding to IP1 Get the request.

912. The service device sends a data response to the gateway.

913. The gateway replaces the destination IP address of the data response from IP3 to IP2, the source IP address is replaced from IP1 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and the replacement is sent to the terminal device through the UPF network element and the RAN device. After the data response.

Among them, step 901-step 904 are the flow of the universal connection service. Step 901, step 905-step 913 are the processes of dedicated connection services, which can ensure that the user of the terminal device cannot see the IP address of the ISP/CDN service provider, and at the same time, it can ensure that the ISP/CDN service provider cannot see the terminal The IP address of the device.

Based on the network architecture shown in FIG. 2, please refer to FIG. 10. FIG. 10 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 10, the communication method may include the following steps.

A service device can be deployed with only the IP address of the dedicated connection service, or only the IP address of the service with general connection, or both the IP address of the service with dedicated connection and the IP address of the service with general connection. . The IP address of the service of the dedicated connection of the service device may be IP4, and the IP address of the service of the general connection of the service device may be IP1. Therefore, the service can be identified as a dedicated connection service through the IP address of the service device. The operator can automatically or manually deliver the IP addresses of all service devices for dedicated connection services to the UPF network element. The first indication information may be the domain name of the service, and the second indication information may be IP4, that is, the IP address of the service device where the service is located. The IP address of the terminal device is IP2, the IP address of the gateway is IP3, and the IP address of the control center is IP5.

1001. A terminal device sends an IP address acquisition request to a UPF network element through a RAN device.

Among them, step 1001 is the same as step 901. For detailed description, please refer to step 901, which is not repeated here.

1002. When the service corresponding to the domain name is a universal connection service, the UPF network element sends an IP address acquisition request to the control center.

Wherein, step 1002 is the same as step 902, for detailed description, please refer to step 902, which will not be repeated here.

1003. The control center sends an IP address response carrying IP1 to the terminal device through the UPF network element and the RAN device.

Among them, step 1003 is similar to step 903. For a detailed description, please refer to step 903, which will not be repeated here. In addition, when the control center selects the service device, it selects the service device deployed with the universal connection service, that is, it selects from the service device corresponding to the IP address of the service deployed with the universal connection, that is, it selects from the service equipment deployed with the universal connection The service device corresponding to the service IP address of the service device includes the service device that needs to obtain the service data selected, so as to ensure that the selected service device is deployed with the service data to be obtained.

1004. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the UPF network element.

Wherein, step 1004 is the same as step 904. For detailed description, please refer to step 904, which will not be repeated here.

1005. In a case where the service corresponding to the domain name is a dedicated connection service, the UPF network element sends an IP address acquisition request to the gateway.

Wherein, step 1005 is the same as step 905, for detailed description, please refer to step 905, which will not be repeated here.

1006. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

1007. The control center sends an IP address response carrying IP4 to the gateway.

1008. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and sends the replaced IP address response to the terminal device through the UPF network element and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and then send the replaced IP address response to the terminal device through the UPF network element and the RAN device.

1009. The terminal device sends a data acquisition request to the UPF network element through the RAN device.

1010. The UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

1011. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, and the source port is replaced by the port of the terminal device with the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP4.

1012. The service device sends a data response to the gateway.

1013. The gateway replaces the destination IP address of the data response from IP3 to IP2, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data response to the terminal device through the UPF network element and the RAN device.

Among them, step 1001-step 1004 are the processes of the universal connection service. Step 1001, step 1005 to step 1013 are the processes of dedicated connection services.

Based on the network architecture shown in FIG. 2, please refer to FIG. 11. FIG. 11 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 11, the communication method may include the following steps.

Two IP addresses can be deployed for each terminal device. One IP address is the IP address used to obtain the dedicated connection service, which is IP4, and the other IP address is the IP address used to obtain the general connection service, which is IP2. Therefore, the service can be identified as a dedicated connection service through the IP address of the terminal device. Operators can allocate separate VLANs for users using dedicated connection services, and assign separate IP addresses, and all terminal devices can be automatically or manually issued to the BRAS as IP addresses for obtaining dedicated connection services. The first indication information and the second indication information are IP4. The IP address of the service device where the business is located is IP1. The IP address of the gateway is IP3. The IP address of the control center is IP5.

The following takes 5G as an example for description. On the basis of DNN1 carrying the traffic of the service of the general connection, DNN2 is newly added to specifically carry the traffic of the service of the dedicated connection. After the terminal device is turned on, it can access DNN1 and DNN2 at the same time. DNN1 can be assigned IP address IP2, and DNN2 can be assigned IP address IP4. The 5G core network can anchor the PDU session to the provincial UPF.

1101. The terminal device sends an IP address acquisition request to the UPF network element through the RAN device.

In the case that the service that the terminal device needs to obtain is a universal connection service, the RAN device may send an IP address obtaining request to the UPF network element. The source IP address of the IP address acquisition request is IP2, and the destination IP address of the IP address acquisition request is IP5.

1102. When the source IP address of the IP address acquisition request is IP2, the UPF network element sends the IP address acquisition request to the control center.

After the UPF network element receives the IP address acquisition request from the RAN device, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. When the source IP address is IP2, it indicates that the service is a universal connection service. The UPF network element can send an IP address acquisition request to the control center.

1103. The control center sends an IP address response carrying IP1 to the terminal device through the UPF network element and the RAN device.

Among them, step 1103 is similar to step 903. For detailed description, please refer to step 903, which will not be repeated here.

1104. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the UPF network element.

After receiving the IP address response from the RAN device, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the RAN device and the UPF network element. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the UPF network element and the RAN device. The data acquisition request may be an HTTP request. The source IP address of the data acquisition request is IP2, and the destination IP address is IP1.

1105. The terminal device sends an IP address acquisition request to the UPF network element through the RAN device.

In the case that the service that the terminal device needs to obtain is a dedicated connection service, the RAN device may send an IP address obtaining request to the UPF network element. The source IP address of the IP address acquisition request is IP4, and the destination IP address of the IP address acquisition request is IP5.

1106. When the source IP address of the IP address acquisition request is IP4, the UPF network element sends an IP address acquisition request to the gateway.

After the UPF network element receives the IP address acquisition request from the RAN device, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. When the source IP address is IP4, it indicates that the service is a dedicated connection service. The UPF network element may send an IP address acquisition request to the gateway.

1107. The gateway replaces the source IP address of the IP address acquisition request from IP4 to IP3, and sends the replaced IP address acquisition request to the control center.

1108. The control center sends an IP address response carrying IP1 to the gateway.

Among them, step 1108 is the same as step 1007. For detailed description, please refer to step 1007, which will not be repeated here. In addition, IP1 in step 1103 and step 1108 may be the same IP address or different IP addresses.

1109. The gateway replaces the destination IP address of the IP address response from IP3 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP4, and then can send the replaced IP address response to the terminal device through the UPF network element and the RAN device.

1110. The terminal device sends a data acquisition request to the UPF network element through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address response. After that, a data acquisition request can be sent to the UPF network element through the RAN device. The source IP address of the data acquisition request is IP4, the destination IP address is IP1, the source port is the port of the terminal device, and the destination port is the port of the service device.

1111. The UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

1112. The gateway replaces the source IP address of the data acquisition request from IP4 to IP3, and replaces the source port of the terminal device with the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1113. The service device sends a data response to the gateway.

1114. The gateway replaces the destination IP address of the data response from IP3 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data response to the terminal device through the UPF network element and the RAN device.

Among them, step 1101 to step 1104 are the processes of the universal connection service. Steps 1105-steps 1114 are the processes of dedicated connection services.

Based on the network architecture shown in FIG. 2, please refer to FIG. 12. FIG. 12 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 12, the communication method may include the following steps.

The following takes 5G as an example for description. On the basis of DNN1 carrying the traffic of the service of the general connection, DNN2 is newly added to specifically carry the traffic of the service of the dedicated connection. After the terminal device is turned on, it can access DNN1 and DNN2 at the same time. DNN1 can be assigned IP address IP2, and DNN2 can be assigned IP address IP4. The 5G core network can anchor the PDU session to the provincial UPF. In order to reduce the impact of dedicated connection service traffic on the backbone network bandwidth between prefecture-level and provincial centers, the 5G mobile network starts the construction of UPF network element edge nodes, which can offload the dedicated connection service traffic to prefectures/districts County-level UPF network element. According to the network plan, the 5G core network can anchor the PDU session of DNN1 carrying the traffic of the general connection to the provincial UPF network element, and can anchor the PDU session of the DNN2 carrying the traffic of the dedicated connection to the city/city/ UPF network element at district and county level.

1201. The terminal device sends an IP address acquisition request to a provincial UPF network element through a RAN device.

In the case that the service that the terminal device needs to obtain is a universal connection service, the RAN device may send an IP address obtaining request to the provincial UPF network element. The source IP address of the IP address acquisition request is IP2, and the destination IP address of the IP address acquisition request is IP5.

The terminal device may first send an IP address acquisition request to the RAN device through the wireless interface. After the RAN device receives the IP address acquisition request from the terminal device, it can extract the source IP address in the IP address acquisition request. In the case that the source IP address in the IP address acquisition request is IP2, it indicates that the acquired service is a universally connected service. The RAN device can package the IP address acquisition request in the PDU session of the terminal device and send it to the provincial level through the tunnel protocol. The UPF network element sends an IP address acquisition request.

1202. The provincial UPF network element sends an IP address acquisition request to the control center.

After the provincial UPF network element receives the IP address acquisition request from the RAN device, it can send the IP address acquisition request to the control center.

1203. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element and the RAN device.

Among them, step 1203 is similar to step 903. For a detailed description, please refer to step 903, which will not be repeated here.

1204. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the provincial UPF network element.

After receiving the IP address response from the RAN device, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the RAN device and the provincial UPF network element. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the provincial UPF network element and the RAN device. The data acquisition request may be an HTTP request. The source IP address of the data acquisition request is IP2, and the destination IP address is IP1.

1205. The terminal device sends an IP address acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

In the case that the service that the terminal device needs to obtain is a dedicated connection service, the RAN device can send an IP address obtaining request to the UPF network element at the prefecture/district/county level. The source IP address of the IP address acquisition request is IP4, and the destination IP address of the IP address acquisition request is IP5.

The terminal device may first send an IP address acquisition request to the RAN device through the wireless interface. After the RAN device receives the IP address acquisition request from the terminal device, it can extract the source IP address in the IP address acquisition request. When the source IP address in the IP address acquisition request is IP4, it indicates that the acquired service is a dedicated connection service. The RAN device can package the IP address acquisition request in the PDU session of the terminal device and send it to the city through the tunnel protocol. / The district/county level UPF network element sends an IP address acquisition request.

1206. The UPF network element at the prefecture/district/county level sends an IP address acquisition request to the gateway.

1207. The gateway replaces the source IP address of the IP address acquisition request from IP4 to IP3, and sends the replaced IP address acquisition request to the control center.

1208. The control center sends an IP address response carrying IP1 to the gateway.

Among them, step 1208 is similar to step 1007. For detailed description, please refer to step 1007, which will not be repeated here. In addition, IP1 in step 1203 and step 1208 may be the same IP address or different IP addresses.

1209. The gateway replaces the destination IP address of the IP address response from IP3 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP4, and then can send the replaced IP to the terminal device through the UPF network element and RAN device at the city/district/county level Address response.

1210. The terminal device sends a data acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP1 according to the replaced IP address response. After that, a data acquisition request can be sent to the UPF network element at the prefecture/district/county level through the RAN device. The source IP address of the data acquisition request is IP4, the destination IP address is IP1, the source port is the port of the terminal device, and the destination port is the port of the service device.

1211. The UPF network element at the prefecture/district/county level sends a data acquisition request to the gateway.

1212. The gateway replaces the source IP address of the data acquisition request from IP4 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1213. The service device sends a data response to the gateway.

1214. The gateway replaces the destination IP address of the data response from IP3 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data to the terminal device through the UPF network element of the city/district and county level and the RAN device response.

Among them, step 1201 to step 1204 are the procedures of the universal connection service. Steps 1205-step 1214 are the processes of dedicated connection services.

Figures 13-15 take 5G as an example for illustration. Operators do not add DNNs and use DNN1 to uniformly carry the traffic of dedicated connection services and the traffic of general connection services. In order to reduce the impact of dedicated connection service traffic on the backbone network bandwidth between prefecture-level and provincial centers, the 5G mobile network starts the construction of UPF network element edge nodes, which can offload the dedicated connection service traffic to prefectures/districts County-level UPF network element. In order to ensure the user's simple surfing process, the PDU sessions of DNN1 that carry all the users' surfing traffic are anchored to the provincial UPF network element. When the service is a general connection service, the offloading is processed locally; when the service is a dedicated connection service, it is forwarded to the city/district/county level UPF network element for processing.

Based on the network architecture shown in FIG. 2, please refer to FIG. 13. FIG. 13 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 13, the communication method may include the following steps.

1301. A terminal device sends an IP address acquisition request to a provincial UPF network element through a RAN device.

In the case that the terminal device needs to obtain the service, the RAN device may first send an IP address obtaining request to the provincial UPF network element. The source IP address of the IP address acquisition request is IP2. The destination IP address of the IP address acquisition request is IP5. The IP address acquisition request carries the domain name of the service.

1302. When the service corresponding to the domain name is a universal connection service, the provincial UPF network element sends an IP address acquisition request to the control center.

After the provincial UPF network element receives the IP address acquisition request from the RAN device, that is, after opening the tunnel, it can resolve the domain name of the service in the IP address acquisition request. In the case that the service corresponding to the resolved domain name is a universal connection service, an IP address acquisition request may be sent to the control center.

Optionally, after the provincial UPF network element receives the IP address acquisition request from the RAN device, it may first determine whether the packet corresponding to the IP address acquisition request is DNS, and after determining that the packet corresponding to the IP address acquisition request is DNS In this case, the IP address acquisition request is sent to the control center.

1303. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element and the RAN device.

After the control center receives the IP address acquisition request from the provincial UPF network element, it indicates that the service is a universally connected service. It can select the service device with the best service quality according to the provincial UPF network element, and then pass the provincial UPF network element and RAN The device sends an IP address response carrying IP1 to the terminal device. IP1 is the IP address of the selected service device. After the provincial UPF network element receives the IP address response from the control center, it can send the IP address response to the RAN device. After receiving the IP address response from the provincial UPF network element, the RAN device can send the IP address response to the terminal device.

1304. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the provincial UPF network element.

After receiving the IP address response from the RAN device, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the RAN device and the provincial UPF network element. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the provincial UPF network element and the RAN device.

1305. In the case that the service corresponding to the domain name is a dedicated connection service, the provincial UPF network element sends an IP address acquisition request to the gateway through the prefecture/district/county UPF network element.

1306. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

1307. The control center sends an IP address response carrying IP1 to the gateway.

After the control center receives the replaced IP address acquisition request from the gateway, it can select the service device with the best service quality according to the gateway, and then return an IP address response carrying IP1 to the gateway. When selecting the service device with the best service quality, you can choose the service device that is closest to the gateway, or the service device that is closer to the gateway and has a smaller load, and can also be based on the distance to the gateway and other factors. Select. IP1 in step 1303 and step 1307 can be the same IP address or different IP addresses.

1308. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and IP1 to IP4, and sends the replaced IP address to the terminal device through the UPF network element at the prefecture/district/county level, the UPF network element at the provincial level, and the RAN device. response.

1309. The terminal device sends a data acquisition request to the provincial UPF network element through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address response. After that, a data acquisition request can be sent to the provincial UPF network element through the RAN device. The source IP address of the data acquisition request is IP2, the destination IP address is IP4, the source port is the port of the terminal device, and the destination port is the port of the service device.

1310. The provincial UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway through the prefecture/district/county UPF network element.

1311. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the destination IP address from IP4 to IP1, and the source port from the terminal device port to the gateway port, and sends the replaced data to the service device corresponding to IP1 Get the request.

1312. The service device sends a data response to the gateway.

1313. The gateway replaces the destination IP address of the data response from IP3 to IP2, the source IP address from IP1 to IP4, and the destination port from the gateway to the port of the terminal device through the UPF network element and province The level UPF network element and the RAN device send the replaced data response to the terminal device.

Among them, step 1301 to step 1304 are the procedures of the universal connection service. Step 1301, step 1305-step 1315 are the dedicated connection business processes, which can ensure that the user of the terminal device cannot see the IP address of the ISP/CDN service provider, and at the same time, it can ensure that the ISP/CDN service provider cannot see the terminal The IP address of the device.

Based on the network architecture shown in FIG. 2, please refer to FIG. 14. FIG. 14 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 14, the communication method may include the following steps.

1401. A terminal device sends an IP address acquisition request to a provincial UPF network element through a RAN device.

Among them, step 1401 is the same as step 1301. For detailed description, please refer to step 1301, which will not be repeated here.

1402. When the service corresponding to the domain name is a universal connection service, the provincial UPF network element sends an IP address acquisition request to the control center.

Among them, step 1402 is the same as step 1302. For detailed description, please refer to step 1302, which will not be repeated here.

1403. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element and the RAN device.

Among them, step 1403 is the same as step 1303. For detailed description, please refer to step 1303, which will not be repeated here. In addition, when the control center selects the service device, it selects the service device deployed with the universal connection service, that is, it selects from the service device corresponding to the IP address of the service deployed with the universal connection, that is, it selects from the service equipment deployed with the universal connection The service device corresponding to the service IP address of the service device includes the service device that needs to obtain the service data selected, so as to ensure that the selected service device is deployed with the service data to be obtained.

1404. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the provincial UPF network element.

Among them, step 1404 is the same as step 1304. For detailed description, please refer to step 1304, which will not be repeated here.

1405. In the case that the service corresponding to the domain name is a dedicated connection service, the provincial UPF network element sends an IP address acquisition request to the gateway through the city/district/county UPF network element.

Among them, step 1405 is the same as step 1305. For detailed description, please refer to step 1305, which will not be repeated here.

1406. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

1407. The control center sends an IP address response carrying IP4 to the gateway.

1408. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level, the UPF network element at the provincial level, and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and then send it to the terminal device through the UPF network element at the city/district/county level, the provincial UPF network element and the RAN equipment Send the replaced IP address response.

1409. The terminal device sends a data acquisition request to the provincial UPF network element through the RAN device.

1410. The provincial UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway through the prefecture/district/county UPF network element.

1411. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, and replaces the source port of the terminal device with the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1412. The service device sends a data response to the gateway.

1413. The gateway replaces the destination IP address of the data response from IP3 to IP2, and the destination port is replaced by the port of the gateway to the port of the terminal device, and then the UPF network element at the prefecture/district/county level, the provincial UPF network element, and the RAN equipment to the terminal The device sends a data response after replacement.

Among them, step 1401-step 1404 are the flow of the universal connection service. Step 1401, step 1405-step 1413 are the processes of dedicated connection services.

Based on the network architecture shown in FIG. 2, please refer to FIG. 15. FIG. 15 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 15, the communication method may include the following steps.

1501. A terminal device sends an IP address acquisition request to a provincial UPF network element through a RAN device.

1502. When the source IP address of the IP address acquisition request is IP2, the provincial UPF network element sends an IP address acquisition request to the control center.

After the provincial UPF network element receives the IP address acquisition request from the RAN device, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. When the source IP address is IP2, it indicates that the service is a universal connection service, and the provincial UPF network element can send an IP address acquisition request to the control center.

1503. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element and the RAN device.

Among them, step 1503 is similar to step 1303. For detailed description, please refer to step 1303, which will not be repeated here.

1504. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device and the provincial UPF network element.

After receiving the IP address response from the RAN device, the terminal device can obtain IP1 according to the IP address response, and then can initiate a data acquisition request to the service device corresponding to IP1 through the RAN device and the provincial UPF network element. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the provincial UPF network element and the RAN device. The source IP address of the data acquisition request is IP2, and the destination IP address is IP1.

1505. The terminal device sends an IP address acquisition request to the provincial UPF network element through the RAN device.

In the case that the service that the terminal device needs to obtain is a dedicated connection service, the RAN device may send an IP address obtaining request to the provincial UPF network element. The source IP address of the IP address acquisition request is IP4, and the destination IP address of the IP address acquisition request is IP5.

1506. In the case where the source IP address of the IP address acquisition request is IP4, the provincial UPF network element sends the IP address acquisition request to the gateway through the city/district/county UPF network element.

1507. The gateway replaces the source IP address of the IP address acquisition request from IP4 to IP3, and sends the replaced IP address acquisition request to the control center.

1508. The control center sends an IP address response carrying IP1 to the gateway.

Among them, step 1508 is the same as step 1307. For detailed description, please refer to step 1307, which will not be repeated here. In addition, IP1 in step 1503 and step 1508 may be the same IP address or different IP addresses.

1509. The gateway replaces the destination IP address of the IP address response from IP3 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level, the UPF network element at the provincial level, and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP4, and then send it to the terminal through the city/district/county UPF network element, provincial UPF network element, and RAN equipment The device sends a response with the replaced IP address.

1510. The terminal device sends a data acquisition request to the provincial UPF network element through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP1 according to the replaced IP address response. After that, a data acquisition request can be sent to the provincial UPF network element through the RAN device. The source IP address of the data acquisition request is IP4, the destination IP address is IP1, the source port is the port of the terminal device, and the destination port is the port of the service device.

1511. The provincial UPF network element determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway through the prefecture/district/county UPF network element.

1512. The gateway replaces the source IP address of the data acquisition request from IP4 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1513. The service device sends a data response to the gateway.

1514. The gateway replaces the destination IP address of the data response from IP3 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and then the UPF network element at the prefecture/district/county level, the provincial UPF network element, and the RAN equipment to the terminal The device sends a data response after replacement.

Among them, step 1501-step 1504 are the flow of the universal connection service. Steps 1505-step 1514 are the processes of dedicated connection services.

Figures 16-18 take 5G as an example for illustration. Operators do not add DNNs and use DNN1 to uniformly carry the traffic of dedicated connection services and the traffic of general connection services. In order to reduce the impact of dedicated connection service traffic on the backbone network bandwidth between prefecture-level and provincial centers, the 5G mobile network starts the construction of UPF network element edge nodes, which can offload the dedicated connection service traffic to prefectures/districts County-level UPF network element. In order to ensure that the user's Internet access process is simple, the PDU session of DNN1 that carries all user Internet traffic is anchored to the UPF network element at the prefecture/district/county level. When the service is a dedicated connection service, the offloading is processed locally; when the service is a general connection service, it is forwarded to the provincial UPF network element for processing.

Based on the network architecture shown in FIG. 2, please refer to FIG. 16. FIG. 16 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 16, the communication method may include the following steps.

1601. A terminal device sends an IP address acquisition request to a UPF network element at the prefecture/district/county level through a RAN device.

In the case that the terminal device needs to obtain the service, the RAN device may first send an IP address obtaining request to the UPF network element at the prefecture/district/county level. The source IP address of the IP address acquisition request is IP2. The destination IP address of the IP address acquisition request is IP5. The IP address acquisition request carries the domain name of the service.

The terminal device may first send an IP address acquisition request to the RAN device through the wireless interface. After the RAN device receives the IP address acquisition request from the terminal device, it can package the IP address acquisition request in the PDU session of the terminal device, and send the IP address acquisition request to the UPF network element at the prefecture/district/county level through the tunnel protocol.

1602. When the service corresponding to the domain name is a universal connection service, the UPF network element at the prefecture/district/county level sends an IP address acquisition request to the control center through the provincial UPF network element.

After the city/district/county UPF network element receives the IP address acquisition request from the RAN device, that is, after opening the tunnel, it can resolve the domain name of the service in the IP address acquisition request. In the case that the service corresponding to the resolved domain name is a universal connection service, the IP address acquisition request can be sent to the control center through the provincial UPF network element. That is, first send an IP address acquisition request to the provincial UPF network element. After the provincial UPF network element receives the IP address acquisition request from the prefecture/district/county UPF network element, it can send the IP address acquisition request to the control center.

Optionally, after the UPF network element at the prefecture/district/county level receives the IP address acquisition request from the RAN device, it can first determine whether the packet corresponding to the IP address acquisition request is DNS, and after determining the packet corresponding to the IP address acquisition request In the case of DNS, the IP address is resolved to obtain the domain name of the service in the request.

1603. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element, the prefecture/district/county UPF network element, and the RAN device.

After the control center receives the IP address acquisition request from the provincial UPF network element, it indicates that the service is a universally connected service. It can select the service device with the best service quality according to the provincial UPF network element, and then pass the provincial UPF network element, local The UPF network element at the city/district/county level and the RAN device send an IP address response carrying IP1 to the terminal device. IP1 is the IP address of the selected service device. After the provincial UPF network element receives the IP address response from the control center, it can send the IP address response to the prefecture/district/county UPF network element. After receiving the IP address response from the UPF network element, the city/district/county UPF network element may send an IP address response to the RAN device. After receiving the IP address response from the UPF network element at the prefecture/district/county level, the RAN device can send an IP address response to the terminal device.

1604. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device, the UPF network element at the prefecture/district/county level, and the provincial UPF network element.

After the terminal device receives the IP address response from the RAN device, it can get IP1 according to the IP address response, and then can initiate data to the service device corresponding to IP1 through the RAN device, city/district/county UPF network element, and provincial UPF network element Get the request. After receiving the data acquisition request, the service device can return a data response carrying service data to the terminal device through the provincial UPF network element, the prefecture/district/county UPF network element, and the RAN device.

1605. When the service corresponding to the domain name is a dedicated connection service, the UPF network element at the prefecture/district/county level sends an IP address acquisition request to the gateway.

1606. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

1607. The control center sends an IP address response carrying IP1 to the gateway.

After the control center receives the replaced IP address acquisition request from the gateway, it can select the service device with the best service quality according to the gateway, and then return an IP address response carrying IP1 to the gateway. When selecting the service device with the best service quality, you can choose the service device that is closest to the gateway, or the service device that is closer to the gateway and has a smaller load, and can also be based on the distance to the gateway and other factors. Select. IP1 in step 1603 and step 1607 can be the same IP address or different IP addresses.

1608. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and IP1 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and replace the IP1 carried in the IP address response with IP4, and then pass the UPF network element, city/district and county level UPF The network element and the RAN device send the replaced IP address response to the terminal device. In addition, the correspondence between IP1 and IP4 can also be recorded.

1609. The terminal device sends a data acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

After the terminal device receives the replaced IP address response, it can obtain IP4 according to the replaced IP address response. After that, a data acquisition request can be sent to the UPF network element at the prefecture/district/county level through the RAN device. The source IP address of the data acquisition request is IP2, the destination IP address is IP4, the source port is the port of the terminal device, and the destination port is the port of the service device.

1610. The UPF network element at the prefecture/district/county level determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

1611. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the destination IP address from IP4 to IP1, and the source port from the terminal device port to the gateway port, and sends the replaced data to the service device corresponding to IP1 Get the request.

1612. The service device sends a data response to the gateway.

1613. The gateway replaces the destination IP address of the data response from IP3 to IP2, the source IP address from IP1 to IP4, and the destination port from the gateway to the port of the terminal device through the UPF network element of the city/district and county level and the RAN The device sends the replaced data response to the terminal device.

Among them, step 1601 to step 1604 are the procedures of the universal connection service. Step 1601, step 1605-step 1613 are the dedicated connection business processes, which can ensure that the user of the terminal device cannot see the IP address of the Internet service provider/CDN service provider, and it can also ensure that the Internet service provider/CDN service provider cannot see the terminal The IP address of the device.

Based on the network architecture shown in FIG. 2, please refer to FIG. 17. FIG. 17 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 17, the communication method may include the following steps.

1701. The terminal device sends an IP address acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

Among them, step 1701 is the same as step 1601. For detailed description, please refer to step 1601, which will not be repeated here.

1702. When the service corresponding to the domain name is a universal connection service, the UPF network element at the prefecture/district/county level sends an IP address acquisition request to the control center through the provincial UPF network element.

Among them, step 1702 is the same as step 1602. For detailed description, please refer to step 1602, which will not be repeated here.

1703. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element, the prefecture/district/county UPF network element, and the RAN device.

Among them, step 1704 is the same as step 1604. For detailed description, please refer to step 1604, which will not be repeated here. In addition, when the control center selects the service device, it selects the service device deployed with the universal connection service, that is, it selects from the service device corresponding to the IP address of the service deployed with the universal connection, that is, it selects from the service equipment deployed with the universal connection The service device corresponding to the service IP address of the service device includes the service device that needs to obtain the service data selected, so as to ensure that the selected service device is deployed with the service data to be obtained.

1704. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device, the UPF network element at the prefecture/district/county level, and the provincial UPF network element.

Among them, step 1704 is the same as step 1604. For detailed description, please refer to step 1604, which will not be repeated here.

1705. When the service corresponding to the domain name is a dedicated connection service, the UPF network element at the prefecture/district/county level sends an IP address acquisition request to the gateway.

Among them, step 1705 is the same as step 1605. For detailed description, please refer to step 1605, which will not be repeated here.

1706. The gateway replaces the source IP address of the IP address acquisition request from IP2 to IP3, and sends the replaced IP address acquisition request to the control center.

1707. The control center sends an IP address response carrying IP4 to the gateway.

1708. The gateway replaces the destination IP address of the IP address response from IP3 to IP2, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level and the RAN device.

After the gateway receives the IP address response from the control center, it can replace the destination IP address of the IP address response from IP3 to IP2, and then send the replaced IP address to the terminal device through the UPF network element of the city/district and county level and the RAN device response.

1709. The terminal device sends a data acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

1710. The UPF network element at the prefecture/district/county level determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

1711. The gateway replaces the source IP address of the data acquisition request from IP2 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1712. The service device sends a data response to the gateway.

1713. The gateway replaces the destination IP address of the data response from IP3 to IP2, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data to the terminal device through the UPF network element of the city/district and county level and the RAN device response.

Among them, step 1701 to step 1704 are the procedures of the universal connection service. Step 1701, step 1705-step 1713 are the processes of dedicated connection services.

Based on the network architecture shown in FIG. 2, please refer to FIG. 18. FIG. 18 is a schematic flowchart of another communication method disclosed in an embodiment of the present invention. As shown in FIG. 18, the communication method may include the following steps.

1801. The terminal device sends an IP address acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

In the case that the service that the terminal device needs to obtain is a universal connection service, the RAN device may send an IP address obtaining request to the UPF network element at the prefecture/district/county level. The source IP address of the IP address acquisition request is IP2, and the destination IP address of the IP address acquisition request is IP5.

1802. When the source IP address of the IP address acquisition request is IP2, the UPF network element at the prefecture/district/county level sends the IP address acquisition request to the control center through the provincial UPF network element.

After the UPF network element at the city/district/county level receives the IP address acquisition request from the RAN device, it can extract the source IP address of the IP address acquisition request from the IP address acquisition request. In the case where the source IP address is IP2, it indicates that the service is a universal connection service, and the UPF network element at the prefecture/district/county level can send an IP address acquisition request to the control center through the provincial UPF network element.

1803. The control center sends an IP address response carrying IP1 to the terminal device through the provincial UPF network element, the prefecture/district/county UPF network element, and the RAN device.

Among them, step 1803 is similar to step 1603. For detailed description, please refer to step 1603, which will not be repeated here.

1804. The terminal device obtains service data from the service device corresponding to IP1 through the RAN device, the UPF network element at the prefecture/district/county level, and the provincial UPF network element.

Among them, step 1804 is the same as step 1604. For detailed description, please refer to step 1604, which will not be repeated here.

1805. The terminal device sends an IP address acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

1806. When the source IP address of the IP address acquisition request is IP4, the UPF network element at the prefecture/district/county level sends an IP address acquisition request to the gateway.

1807. The gateway replaces the source IP address of the IP address acquisition request from IP4 to IP3, and sends the replaced IP address acquisition request to the control center.

1808. The control center sends an IP address response carrying IP1 to the gateway.

Among them, step 1808 is the same as step 1507. For detailed description, please refer to step 1507, which will not be repeated here. In addition, IP1 in step 1803 and step 1808 may be the same IP address or different IP addresses.

1809. The gateway replaces the destination IP address of the IP address response from IP3 to IP4, and sends the replaced IP address response to the terminal device through the UPF network element at the prefecture/district/county level and the RAN device.

1810. The terminal device sends a data acquisition request to the UPF network element at the prefecture/district/county level through the RAN device.

1811. The UPF network element at the prefecture/district/county level determines that the service is a dedicated connection service according to IP4, and sends a data acquisition request to the gateway.

1812. The gateway replaces the source IP address of the data acquisition request from IP4 to IP3, the source port is replaced from the port of the terminal device to the port of the gateway, and sends the replaced data acquisition request to the service device corresponding to IP1.

1813. The service device sends a data response to the gateway.

1814. The gateway replaces the destination IP address of the data response from IP3 to IP4, and the destination port is replaced by the port of the gateway to the port of the terminal device, and sends the replaced data to the terminal device through the UPF network element and RAN device at the city/district/county level response.

Among them, step 1801 to step 1804 are the flow of the universal connection service. Steps 1805-step 1814 are the processes of dedicated connection services.

Among them, in the above several embodiments, after the gateway receives the IP address acquisition request, it can first determine whether the service is a designated service, that is, whether the service is a service allowed by the gateway. When it is determined that the business is a designated business, the subsequent steps are executed. Correspondingly, after the gateway receives the data acquisition request, it can first determine whether the business corresponding to the data acquisition request and the business corresponding to the previously received IP address acquisition request are the same business, and if it is determined to be the same business, it can execute Next steps.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 19. FIG. 19 is a schematic structural diagram of a communication device disclosed in an embodiment of the present invention. As shown in FIG. 19, the communication device may include:

The receiving unit 1901 is configured to receive an information acquisition request from a terminal device, where the information acquisition request carries indication information for indicating whether the service is a dedicated connection service;

The sending unit 1902 is configured to send an information acquisition request to the gateway when the indication information indicates that the service is a dedicated connection service, and the information acquisition request is used to obtain information corresponding to the service;

The receiving unit 1901 is further configured to receive information corresponding to the service from the gateway;

The sending unit 1902 is also used to send information corresponding to the service to the terminal device.

In an embodiment, the receiving unit 1901 receives an information acquisition request from a terminal device, and the information acquisition request carries indication information for indicating whether the service is a dedicated connection service, including:

When the indication information indicates that the service is a dedicated connection service, the sending unit 1902 sends an information acquisition request to the gateway. The information acquisition request is used to acquire information corresponding to the service, including:

When the first indication information indicates that the service is a dedicated connection service, send an IP address acquisition request to the gateway, and the IP address acquisition request is used to acquire the IP address corresponding to the service device where the service is located;

The information corresponding to the service received by the receiving unit 1901 from the gateway includes:

Receive the IP address corresponding to the service device where the business is located from the gateway;

The sending unit 1902 sending information corresponding to the service to the terminal device includes:

Send the IP address corresponding to the service device where the service is located to the terminal device.

In an embodiment, the receiving unit 1901 receives an information acquisition request from a terminal device, and the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service further includes:

Receiving a data acquisition request from a terminal device, where the data acquisition request carries second indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, the sending unit 1902 sends an information acquisition request to the gateway. The information acquisition request for acquiring information corresponding to the service further includes:

When the second indication information indicates that the service is a dedicated connection service, sending a data acquisition request to the gateway, where the data acquisition request is used to obtain data corresponding to the service from the service device corresponding to the IP address;

The receiving unit 1901 receiving information corresponding to the service from the gateway further includes:

Receive data corresponding to the service from the gateway;

The sending unit 1902 sending information corresponding to the service to the terminal device further includes:

Send the data corresponding to the service to the terminal device.

In an embodiment, the first indication information is the domain name of the service, and the first indication information used to indicate that the service is a dedicated connection service includes:

The domain name of this business is the designated domain name.

In an embodiment, the second indication information is the destination IP address of the data acquisition request, and the second indication information is used to indicate that the service is a dedicated connection service including:

The destination IP address of the data acquisition request is the designated IP address.

In an embodiment, the first indication information is the source IP address of the IP address acquisition request, and the first indication information used to indicate that the service is a dedicated connection service includes:

The source IP address of the IP address acquisition request is the specified IP address.

In an embodiment, the second indication information is the source IP address of the data acquisition request, and the second indication information is used to indicate that the service is a dedicated connection service including:

In an embodiment, the IP address acquisition request is a DNS request or an HTTP DNS request.

In an embodiment, the communication device may further include:

The determining unit 1903 is configured to determine that the IP address acquisition request is an HTTP DNS request when the destination IP address of the IP address acquisition request is a set IP address.

More detailed descriptions of the foregoing receiving unit 1901, sending unit 1902, and determining unit 1903 can be obtained directly by referring to the relevant description of the UPF network element or BRAS in the foregoing method embodiment, and will not be repeated here.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 20. FIG. 20 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. As shown in FIG. 20, the communication device may include:

The receiving unit 2001 is configured to receive an information acquisition request from the control device, and the service corresponding to the information acquisition request is a dedicated connection service;

The obtaining unit 2001 is configured to obtain information corresponding to the service according to the information obtaining request when the service is a designated service;

The sending unit 2003 is configured to send information corresponding to the service to the control device.

In one embodiment, the receiving unit 2001 is specifically configured to receive an IP address acquisition request from the control device, and the IP address acquisition request carries an identifier of the service;

The acquiring unit 2002 is specifically used for:

In the case that the business corresponding to the identifier is a designated business, send an IP address acquisition request to the control center;

Receiving a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the IP address of the service device where the service is determined by the control center according to the gateway;

The sending unit 2003 is specifically configured to send a second IP address response to the control device, where the second IP address response carries the first IP address or the IP address corresponding to the first IP address.

In an embodiment, the receiving unit 2001 is specifically further configured to receive a data acquisition request from the control device;

The acquiring unit 2002 is also specifically used for:

In the case where the business corresponding to the data acquisition request and the IP address acquisition request are the same business, sending the data acquisition request to the service device corresponding to the first IP address;

Receive a data response from the service device that carries the data of the service;

The sending unit 2003 is specifically also used to send a data response to the control device.

In an embodiment, the obtaining unit 2002 sending an IP address obtaining request to the control center includes:

Replace the source IP address of the IP address acquisition request from the second IP address with the third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

Send a replacement IP address acquisition request to the control center;

The sending unit 2003 sending the second IP address response to the control device includes:

Replace the destination IP address of the first IP address response from the third IP address with the second IP address to obtain the second IP address response;

Send a second IP address response to the control device.

In an embodiment, the communication device may further include:

The recording unit 2004 is used to record the correspondence between the identifier and the second IP address and the first IP address or the IP address corresponding to the first IP address;

When the service corresponding to the data obtaining request and the IP address obtaining request are the same service, the obtaining unit 2003 sending the data obtaining request to the service device corresponding to the first IP address includes:

According to the corresponding relationship and the source IP address and destination IP address of the data acquisition request, it is determined that the business corresponding to the data acquisition request and the IP address acquisition request is the same business;

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, and replace the source port of the data acquisition request from the first port to the second port. The first port is the port of the terminal device, and the second port is The port of the gateway;

Sending the replaced data acquisition request to the service device corresponding to the first IP address;

The sending unit 2003 sends a data response to the control device including:

Replace the destination IP address of the data response from the third IP address to the second IP address, and replace the destination port of the data response from the second port to the first port;

Send the replaced data response to the control device.

In one embodiment, the sending unit 2003 replaces the destination IP address of the first IP address response from the third IP address with the second IP address, and obtaining the second IP address response includes:

Replace the destination IP address of the first IP address response from the third IP address with the second IP address, replace the first IP address with the fourth IP address, and get the second IP address response. The fourth IP address is used by the gateway. The IP address used to identify whether the service is a dedicated connection service;

The obtaining unit 2002 replacing the source IP address of the data obtaining request from the second IP address to the third IP address, and replacing the source port of the data obtaining request from the first port to the second port includes:

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and replace the destination IP address of the data acquisition request with the fourth IP address Replace with the first IP address;

The sending unit 2003 replacing the destination IP address of the data response from the third IP address to the second IP address, and replacing the destination port of the data response from the second port to the first port includes:

Replace the source IP address of the data response from the first IP address to the fourth IP address, replace the destination IP address of the data response from the third IP address to the second IP address, and replace the destination port of the data response from the second port to the second IP address The first port.

In an embodiment, the communication device may further include a charging unit 2005, wherein:

The billing unit 2005 is used to charge the broadband used by the terminal device and the service device according to the minimum limit flow when the broadband traffic used between the terminal device and the service device is less than the minimum limit flow; the billing unit 2005 also When the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, the broadband used by the terminal device and the service device is billed according to the broadband usage traffic between the terminal device and the service device; or

The billing unit 2005 is used to charge the broadband used by the terminal device and the service device according to the minimum bandwidth when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum bandwidth, and the minimum bandwidth is the minimum bandwidth The bandwidth corresponding to the traffic; the billing unit 2005 is also used for when the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum limit bandwidth, according to the bandwidth of the broadband used between the terminal device and the service device, Charge the broadband used by terminal equipment and service equipment.

In an embodiment, the first IP address acquisition request is a DNS request or an HTTP DNS request.

More detailed descriptions of the foregoing receiving unit 2001, obtaining unit 2002, sending unit 2003, recording unit 2004, and charging unit 2005 can be obtained directly by referring to the relevant description of the gateway in the foregoing method embodiment, and will not be repeated here.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 21. FIG. 21 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. As shown in FIG. 21, the communication device may include:

The receiving unit 2101 is configured to receive an IP address obtaining request from the control device, and the service corresponding to the IP address obtaining request is a dedicated connection service;

The replacement unit 2102 is configured to replace the source IP address of the IP address acquisition request from the second IP address to the third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

The sending unit 2103 is configured to send a replacement IP address acquisition request to the control center;

The receiving unit 2101 is further configured to receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the IP address of the service device where the service is determined by the control center according to the gateway;

The replacement unit 2102 is further configured to replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with the fourth IP address to obtain the second IP address response, 4. The IP address is the IP address allocated by the gateway to identify whether the service is a dedicated connection service;

The sending unit 2103 is further configured to send a second IP address response to the control device.

In an embodiment, the IP address acquisition request carries a service identifier, and the communication device may further include:

The recording unit 2104 is configured to record the correspondence between the identifier and the second IP address and the fourth IP address;

The receiving unit 2101 is also configured to receive a data acquisition request from the control device;

The determining unit 2105 is configured to determine that the business corresponding to the data acquisition request and the IP address acquisition request is the same business according to the correspondence and the source IP address and the destination IP address of the data acquisition request;

The replacement unit 2102 is further configured to replace the source IP address of the data acquisition request from the second IP address with the third IP address, and replace the source port of the data acquisition request from the first port to the second port, and change the purpose of the data acquisition request The IP address is replaced by the fourth IP address with the first IP address, the first port is the port of the terminal device, and the second port is the port of the gateway;

The sending unit 2103 is further configured to send the replaced data acquisition request to the service device corresponding to the first IP address;

The receiving unit 2101 is also configured to receive a data response from the service device, and the data response carries data of the service;

The replacement unit 2102 is also used to replace the source IP address of the data response from the first IP address to the fourth IP address, replace the destination IP address of the data response from the third IP address to the second IP address, and change the destination of the data response The port is replaced with the first port from the second port;

The sending unit 2103 is also used to send the replaced data response to the control device.

In an embodiment, the communication device may further include a charging unit 2106, wherein:

The billing unit 2106 is configured to charge the broadband used by the terminal device and the service device according to the minimum limit flow when the broadband traffic used between the terminal device and the service device is less than the minimum limit flow; the billing unit 2106 also When the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, the broadband used by the terminal device and the service device is billed according to the broadband usage traffic between the terminal device and the service device; or

The billing unit 2106 is used to charge the broadband used by the terminal device and the service device according to the minimum bandwidth when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum bandwidth, and the minimum bandwidth is the minimum bandwidth The bandwidth corresponding to the traffic; the billing unit 2106 is also used for the terminal device and the service device when the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum limit bandwidth, according to the bandwidth of the broadband used between the terminal device and the service device, to the terminal The broadband used by the equipment and service equipment is billed.

More detailed descriptions of the foregoing receiving unit 2101, replacing unit 2102, sending unit 2103, recording unit 2104, determining unit 2105, and charging unit 2106 can be obtained directly by referring to the relevant description of the gateway in the foregoing method embodiment, and will not be repeated here.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 22. FIG. 22 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. As shown in FIG. 22, the communication device may include a processor 2201, a memory 2202, an input interface 2203, an output interface 2204, and a bus 2205. The memory 2202 may exist independently, and may be connected to the processor 2201 through the bus 2205. The memory 2202 may also be integrated with the processor 2201. Among them, the bus 2205 is used to realize the connection between these components.

In one embodiment, the communication device may be a UPF network element or a module (for example, a chip) in a UPF network element, the communication device may be a BRAS or a module (for example, a chip) in the BRAS, and a computer stored in the memory 2202 When the program instructions are executed, the processor 2201 is used to perform the operations performed by the determining unit 1903 in the above-mentioned embodiment, the input interface 2203 is used to perform the operations performed by the receiving unit 1901 in the above-mentioned embodiment, and the output interface 2204 is used to perform the above-mentioned embodiment The operation performed by the sending unit 1902. The foregoing UPF network element or modules in the UPF network element may also be used to execute various methods executed by the UPF network element in the foregoing method embodiments, and details are not described herein again. The foregoing BRAS or the modules in the BRAS may also be used to execute various methods executed by the BRAS in the foregoing method embodiments, and details are not described herein again.

In one embodiment, the communication device may be a GW or a module (for example, a chip) in the GW. When the computer program instructions stored in the memory 2202 are executed, the processor 2201 is used to execute the acquiring unit 2002, the recording unit 2004, and the The charging unit 2005 performs operations in the foregoing embodiment, the input interface 2203 is used to perform the operations performed by the receiving unit 2001 in the foregoing embodiment, and the output interface 2204 is used to perform the operations performed by the sending unit 2003 in the foregoing embodiment. The foregoing GW or the modules in the GW may also be used to execute various methods executed by the GW in the foregoing method embodiments, and details are not described herein again.

In one embodiment, the communication device may be a GW or a module (for example, a chip) in the GW. When the computer program instructions stored in the memory 2202 are executed, the processor 2201 is configured to execute the replacement unit 2102 and the recording unit 2104 to determine The operation performed by the unit 2105 and the charging unit 2106 in the foregoing embodiment, the input interface 2203 is used to perform the operation performed by the receiving unit 2101 in the foregoing embodiment, and the output interface 2204 is used to perform the operation performed by the sending unit 2103 in the foregoing embodiment. The foregoing GW or the modules in the GW may also be used to execute various methods executed by the GW in the foregoing method embodiments, and details are not described herein again.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 23. FIG. 23 is a schematic structural diagram of another communication device disclosed in an embodiment of the present invention. As shown in FIG. 23, the communication device may include an input interface 2301, a logic circuit 2302, and an output interface 2303. The input interface 2301 and the output interface 2303 are connected through a logic circuit 2302. The input interface 2301 is used to receive information from other communication devices, and the output interface 2303 is used to output, schedule, or send information to other communication devices. The logic circuit 2302 is used to perform operations other than the operations of the input interface 2301 and the output interface 2303, for example, to implement the functions implemented by the processor 2201 in the foregoing embodiment. Wherein, the communication device may be a UPF network element or a module in a UPF network element, a BRAS or a module in a BRAS, or a GW or a module in a GW. Among them, more detailed descriptions of the input interface 2301, the logic circuit 2302, and the output interface 2303 can be obtained directly by referring to the relevant description of the UPF network element, BRAS or GW in the above method embodiment, and will not be repeated here.

Based on the network architecture shown in FIG. 1 or FIG. 2, please refer to FIG. 24. FIG. 24 is a schematic structural diagram of a GW disclosed in an embodiment of the present invention. As shown in FIG. 24, the GW may include a gateway processing module 2401, a service IP mapping management 2402, a terminal connection management 2403, a service gateway IP pool 2404, and a terminal gateway IP pool 2405.

The GW is responsible for the identification, establishment, and maintenance of dedicated connection services.

The gateway processing module 2401 includes a DNS proxy, an HTTP DNS proxy, and a connection proxy. among them:

The DNS proxy is responsible for proxying the DNS interaction process and replacing the IP address in the DNS protocol as needed;

The HTTP DNS proxy is responsible for proxying the HTTP DNS interaction process and replacing the IP address in the HTTP DNS protocol as needed;

The connection agent is responsible for replacing the IP address or port in the IP message of the non-DNS protocol according to the mapping relationship in the service IP mapping management 2402 and the terminal connection management 2403 according to the rules.

The service IP mapping management 2402 is used to dynamically/statically establish and manage the mapping relationship between the IP address of the specific Internet service equipment and the IP address of the service GW.

The terminal connection management 2403 is used to dynamically establish and manage the connection of the dedicated connection service.

The service gateway IP pool 2404 is used to provide mapped IP addresses of Internet service equipment. When the terminal device accesses the service through the GW, the destination IP address is the IP address in the service gateway IP pool 2404 instead of the IP address of the real Internet service device. The service gateway IP address pool 2404 can use the private network address or the public network address of the operator's intranet.

The terminal gateway IP pool 2405 is used to provide an IP address for the proxy terminal device to initiate a request to the proxy service device. When the terminal device accesses the service through the GW, the source IP address is the IP address in the terminal gateway IP pool 2405, rather than the real terminal device's IP address. The IP address in the terminal gateway IP pool 2405 is a public network address.

In the case that the terminal device in the fixed network has the IP address for the dedicated connection service, and the terminal device in the mobile network has the APN/DNN for obtaining the dedicated connection service, the GW does not need to provide service gateway IP pool and service IP mapping management Features.

The logical functional entities connected to the GW are given here, and these functional entities can be implemented on different boards and logical network elements during specific implementation.

The embodiment of the present invention also discloses a computer-readable storage medium with an instruction stored thereon, and the method in the foregoing method embodiment is executed when the instruction is executed.

The embodiment of the present invention also discloses a computer program product containing instructions, which execute the method in the foregoing method embodiment when the instruction is executed.

The embodiment of the present invention also discloses a communication system. The communication system includes a UPF network element and a GW, or a BRAS and a GW. For a specific description, reference may be made to the relevant description in the above method embodiment.

The specific implementations described above further describe the purpose, technical solutions, and beneficial effects of the application in detail. It should be understood that the foregoing are only specific implementations of the application and are not intended to limit the scope of the application. The scope of protection, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of this application shall be included in the scope of protection of this application.

Claims

A communication method, characterized in that it comprises:

Receiving an information acquisition request from a terminal device, the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service;

In a case where the indication information indicates that the service is a dedicated connection service, sending the information acquisition request to the gateway, where the information acquisition request is used to acquire information corresponding to the service;

Receiving the information from the gateway;

Sending the information to the terminal device.
The method according to claim 1, wherein the receiving an information acquisition request from a terminal device, the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service, comprises:

Receiving an IP address acquisition request from a terminal device, where the IP address acquisition request carries first indication information for indicating whether the service is a dedicated connection service;

In a case where the indication information indicates that the service is a dedicated connection service, sending the information acquisition request to a gateway, where the information acquisition request is used to acquire information corresponding to the service includes:

In a case where the first indication information indicates that the service is a dedicated connection service, sending the IP address obtaining request to a gateway, where the IP address obtaining request is used to obtain the IP address corresponding to the service device where the service is located;

The receiving the information from the gateway includes:

Receiving the IP address from the gateway;

The sending the information to the terminal device includes:

Sending the IP address to the terminal device.
The method according to claim 2, wherein the receiving an information acquisition request from a terminal device, the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service, further comprises:

Receiving a data acquisition request from the terminal device, the data acquisition request carrying second indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, sending the information acquisition request to a gateway, where the information acquisition request is used to acquire information corresponding to the service, further includes:

In the case where the second indication information indicates that the service is a dedicated connection service, the data acquisition request is sent to the gateway, and the data acquisition request is used to obtain the data acquisition request from the service device corresponding to the IP address. Data corresponding to the business;

The receiving the information from the gateway further includes:

Receiving the data from the gateway;

The sending the information to the terminal device further includes:

Sending the data to the terminal device.
The method according to claim 2 or 3, wherein the first indication information is a domain name of the service, and the first indication information used to indicate that the service is a dedicated connection service includes:

The domain name is a designated domain name.
The method according to claim 4, wherein the second indication information is a destination IP address of the data acquisition request, and the second indication information used to indicate that the service is a dedicated connection service includes:

The destination IP address of the data acquisition request is a designated IP address.
The method according to claim 2 or 3, wherein the first indication information is the source IP address of the IP address acquisition request, and the first indication information is used to indicate that the service is a dedicated connection service including :

The source IP address of the IP address acquisition request is a designated IP address.
The method according to claim 6, wherein the second indication information is a source IP address of the data acquisition request, and the second indication information used to indicate that the service is a dedicated connection service comprises:

The source IP address of the data acquisition request is the designated IP address.
The method according to any one of claims 2-7, wherein the IP address acquisition request is a Domain Name System DNS request or a Hypertext Transfer Protocol HTTP DNS request.
The method according to claim 8, wherein the method further comprises:

In a case where the destination IP address of the IP address acquisition request is a set IP address, it is determined that the IP address acquisition request is an HTTP DNS request.
A communication method, characterized in that it comprises:

Receiving an information acquisition request from the control device, where the service corresponding to the information acquisition request is a dedicated connection service;

In the case that the business is a designated business, acquiring information corresponding to the business according to the information acquisition request;

Sending the information to the control device.
The method according to claim 10, wherein said receiving an information acquisition request from a control device comprises:

Receiving an IP address acquisition request from a control device, where the IP address acquisition request carries an identifier of the service;

In the case that the business is a designated business, acquiring information corresponding to the business according to the information acquisition request includes:

In the case that the service corresponding to the identifier is a designated service, sending the IP address acquisition request to the control center;

Receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the service device where the service is determined by the control center according to the gateway IP address;

The sending the information to the control device includes:

A second IP address response is sent to the control device, where the second IP address response carries the first IP address or the IP address corresponding to the first IP address.
The method according to claim 11, wherein said receiving an information acquisition request from a control device further comprises:

Receiving a data acquisition request from the control device;

In the case that the business is a designated business, acquiring information corresponding to the business according to the information acquisition request further includes:

In a case where the service corresponding to the data acquisition request and the IP address acquisition request is the same service, sending the data acquisition request to the service device corresponding to the first IP address;

Receiving a data response from the service device that carries the data of the service;

The sending the information to the control device further includes:

Send the data response to the control device.
The method according to claim 12, wherein the sending the IP address acquisition request to the control center comprises:

Replacing the source IP address of the IP address acquisition request with a second IP address with a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

Send a replacement IP address acquisition request to the control center;

The sending a second IP address response to the control device includes:

Replacing the destination IP address of the first IP address response from the third IP address with the second IP address to obtain a second IP address response;

Sending the second IP address response to the control device.
The method according to claim 13, wherein the method further comprises:

Record the correspondence between the identifier and the second IP address and the first IP address or the IP address corresponding to the first IP address;

When the service corresponding to the data acquisition request and the IP address acquisition request is the same service, sending the data acquisition request to the service device corresponding to the first IP address includes:

Determining that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and the first port Is the port of the terminal device, and the second port is the port of the gateway;

Sending a replacement data acquisition request to the service device corresponding to the first IP address;

The sending the data response to the control device includes:

Replacing the destination IP address of the data response from the third IP address to the second IP address, and replacing the destination port of the data response from the second port to the first port;

Send the replaced data response to the control device.
The method according to claim 14, wherein the replacing the destination IP address of the first IP address response from the third IP address to the second IP address, and obtaining the second IP address response comprises :

Replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with the fourth IP address to obtain the second IP address response, so The fourth IP address is an IP address allocated by the gateway to identify whether the service is a dedicated connection service;

The replacing the source IP address of the data acquisition request from the second IP address to the third IP address, and replacing the source port of the data acquisition request from the first port to the second port includes:

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and acquire the data The requested destination IP address is replaced by the fourth IP address with the first IP address;

The replacing the destination IP address of the data response from the third IP address to the second IP address, and replacing the destination port of the data response from the second port to the first port includes:

Replacing the source IP address of the data response from the first IP address to the fourth IP address, and replacing the destination IP address of the data response from the third IP address to the second IP address, The destination port of the data response is replaced by the second port with the first port.
The method according to any one of claims 12-15, wherein the method further comprises:

In the case that the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, charging the broadband used by the terminal device and the service device according to the minimum limit traffic;

In the case that the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, the terminal device is Billing is performed with the broadband used by the service equipment.
The method according to any one of claims 12-15, wherein the method further comprises:

In the case that the bandwidth of the broadband used between the terminal device and the service device is less than the minimum restricted bandwidth, the broadband used by the terminal device and the service device is charged according to the minimum restricted bandwidth, and the minimum Restricted bandwidth is the bandwidth corresponding to the lowest restricted traffic;

In the case where the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum limit bandwidth, the terminal device is Billing is performed with the broadband used by the service equipment.
The method according to any one of claims 11-17, wherein the first IP address acquisition request is a Domain Name System DNS request or a Hypertext Transfer Protocol HTTP DNS request.
A communication method, characterized in that it comprises:

Receiving an IP address acquisition request from the control device, where the service corresponding to the IP address acquisition request is a dedicated connection service;

Replacing the source IP address of the IP address acquisition request with a second IP address with a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

Send a replacement IP address acquisition request to the control center;

Receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the service device where the service is determined by the control center according to the gateway IP address;

Replacing the destination IP address of the first IP address response from the third IP address with the second IP address, and replacing the first IP address with a fourth IP address to obtain a second IP address response, The fourth IP address is an IP address allocated by the gateway for identifying whether the service is a dedicated connection service;

Sending the second IP address response to the control device.
The method according to claim 19, wherein the IP address acquisition request carries a service identifier, and the method further comprises:

Record the correspondence between the identifier and the second IP address and the fourth IP address;

Receiving a data acquisition request from the control device;

Determining that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and acquire the data The requested destination IP address is replaced with the first IP address from the fourth IP address, the first port is the port of the terminal device, and the second port is the port of the gateway;

Sending a replacement data acquisition request to the service device corresponding to the first IP address;

Receiving a data response from the service device, the data response carrying data of the service;

Replacing the source IP address of the data response from the first IP address to the fourth IP address, and replacing the destination IP address of the data response from the third IP address to the second IP address, Replacing the destination port of the data response from the second port to the first port;

Send the replaced data response to the control device.
The method according to claim 20, wherein the method further comprises:

In the case that the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, charging the broadband used by the terminal device and the service device according to the minimum limit traffic;

In the case that the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, the terminal device is treated according to the broadband usage traffic between the terminal device and the service device Billing is performed with the broadband used by the service equipment.
The method according to claim 20, wherein the method further comprises:

In the case that the bandwidth of the broadband used between the terminal device and the service device is less than the minimum restricted bandwidth, the broadband used by the terminal device and the service device is charged according to the minimum restricted bandwidth, and the minimum Restricted bandwidth is the bandwidth corresponding to the lowest restricted traffic;

In the case where the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum limit bandwidth, the terminal device is Billing is performed with the broadband used by the service equipment.
A communication device, characterized in that it comprises:

A receiving unit, configured to receive an information acquisition request from a terminal device, where the information acquisition request carries indication information for indicating whether the service is a dedicated connection service;

A sending unit, configured to send the information acquisition request to the gateway when the indication information indicates that the service is a dedicated connection service, where the information acquisition request is used to obtain information corresponding to the service;

The receiving unit is further configured to receive the information from the gateway;

The sending unit is further configured to send the information to the terminal device.
The apparatus according to claim 23, wherein the receiving unit receives an information acquisition request from a terminal device, and the information acquisition request carries indication information for indicating whether the service is a dedicated connection service, including:

Receiving an IP address acquisition request from a terminal device, where the IP address acquisition request carries first indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, the sending unit sends the information acquisition request to the gateway, where the information acquisition request is used to acquire information corresponding to the service including:

In a case where the first indication information indicates that the service is a dedicated connection service, sending the IP address obtaining request to a gateway, where the IP address obtaining request is used to obtain the IP address corresponding to the service device where the service is located;

The receiving unit receiving the information from the gateway includes:

Receiving the IP address from the gateway;

The sending unit sending the information to the terminal device includes:

Sending the IP address to the terminal device.
The apparatus according to claim 24, wherein the receiving unit receives an information acquisition request from a terminal device, and the information acquisition request carrying indication information for indicating whether the service is a dedicated connection service further comprises:

Receiving a data acquisition request from the terminal device, the data acquisition request carrying second indication information for indicating whether the service is a dedicated connection service;

When the indication information indicates that the service is a dedicated connection service, the sending unit sends the information acquisition request to the gateway, where the information acquisition request is used to acquire information corresponding to the service and further includes:

In the case where the second indication information indicates that the service is a dedicated connection service, the data acquisition request is sent to the gateway, and the data acquisition request is used to obtain the data acquisition request from the service device corresponding to the IP address. Data corresponding to the business;

The receiving unit receiving the information from the gateway further includes:

Receiving the data from the gateway;

The sending unit sending the information to the terminal device further includes:

Sending the data to the terminal device.
The apparatus according to claim 24 or 25, wherein the first indication information is a domain name of the service, and the first indication information used to indicate that the service is a dedicated connection service includes:

The domain name is a designated domain name.
The apparatus according to claim 26, wherein the second indication information is a destination IP address of the data acquisition request, and the second indication information is used to indicate that the service is a dedicated connection service including:

The destination IP address of the data acquisition request is a designated IP address.
The apparatus according to claim 24 or 25, wherein the first indication information is a source IP address of the IP address acquisition request, and the first indication information is used to indicate that the service is a dedicated connection service include:

The source IP address of the IP address acquisition request is a designated IP address.
The apparatus according to claim 28, wherein the second indication information is a source IP address of the data acquisition request, and the second indication information is used to indicate that the service is a dedicated connection service comprising:

The source IP address of the data acquisition request is the designated IP address.
The device according to any one of claims 24-29, wherein the IP address acquisition request is a Domain Name System DNS request or a Hypertext Transfer Protocol HTTP DNS request.
The device according to claim 30, wherein the device further comprises:

The determining unit is configured to determine that the IP address acquisition request is an HTTP DNS request when the destination IP address of the IP address acquisition request is a set IP address.
A communication device, characterized in that it comprises:

The receiving unit is configured to receive an information acquisition request from the control device, and the service corresponding to the information acquisition request is a dedicated connection service;

An obtaining unit, configured to obtain information corresponding to the service according to the information obtaining request when the service is a designated service;

The sending unit is configured to send the information to the control device.
The apparatus according to claim 32, wherein the receiving unit is specifically configured to receive an IP address acquisition request from a control device, and the IP address acquisition request carries an identifier of the service;

The acquiring unit is specifically used for:

In the case that the service corresponding to the identifier is a designated service, sending the IP address acquisition request to the control center;

Receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is the service device where the service is determined by the control center according to the gateway IP address;

The sending unit is specifically configured to send a second IP address response to the control device, where the second IP address response carries the first IP address or an IP address corresponding to the first IP address.
The apparatus according to claim 33, wherein the receiving unit is specifically further configured to receive a data acquisition request from the control device;

The acquiring unit is specifically further used for:

In a case where the service corresponding to the data acquisition request and the IP address acquisition request is the same service, sending the data acquisition request to the service device corresponding to the first IP address;

Receiving a data response from the service device that carries the data of the service;

The sending unit is specifically further configured to send the data response to the control device.
The device according to claim 34, wherein the obtaining unit sending the IP address obtaining request to the control center comprises:

Replacing the source IP address of the IP address acquisition request with a second IP address with a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the IP address of the gateway;

Send a replacement IP address acquisition request to the control center;

The sending unit sending the second IP address response to the control device includes:

Replacing the destination IP address of the first IP address response from the third IP address with the second IP address to obtain a second IP address response;

Sending the second IP address response to the control device.
The device according to claim 35, wherein the device further comprises:

A recording unit, configured to record the correspondence between the identifier and the second IP address and the first IP address or the IP address corresponding to the first IP address;

When the service corresponding to the data obtaining request and the IP address obtaining request are the same service, the obtaining unit sending the data obtaining request to the service device corresponding to the first IP address includes:

Determining that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and the first port Is the port of the terminal device, and the second port is the port of the gateway;

Sending a replacement data acquisition request to the service device corresponding to the first IP address;

The sending unit sending the data response to the control device includes:

Replacing the destination IP address of the data response from the third IP address to the second IP address, and replacing the destination port of the data response from the second port to the first port;

Send the replaced data response to the control device.
The device according to claim 36, wherein the sending unit replaces the destination IP address of the first IP address response from the third IP address with the second IP address to obtain the second IP address The response includes:

Replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with the fourth IP address to obtain the second IP address response, so The fourth IP address is an IP address allocated by the gateway to identify whether the service is a dedicated connection service;

The obtaining unit replacing the source IP address of the data obtaining request from the second IP address to the third IP address, and replacing the source port of the data obtaining request from the first port to the second port includes:

Replace the source IP address of the data acquisition request from the second IP address with the third IP address, replace the source port of the data acquisition request from the first port with the second port, and acquire the data The requested destination IP address is replaced by the fourth IP address with the first IP address;

The sending unit replaces the destination IP address of the data response from the third IP address to the second IP address, and replaces the destination port of the data response from the second port to the first port include:

Replacing the source IP address of the data response from the first IP address to the fourth IP address, and replacing the destination IP address of the data response from the third IP address to the second IP address, The destination port of the data response is replaced by the second port with the first port.
The device according to any one of claims 34-37, wherein the device further comprises:

The first billing unit is configured to, when the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, use the terminal device and the service device according to the minimum limit traffic. Broadband billing;

The first billing unit is further configured to: when the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, according to the difference between the terminal device and the service device The broadband usage traffic is billed for the broadband used by the terminal equipment and the service equipment.
The device according to any one of claims 34-37, wherein the device further comprises:

The second billing unit is configured to, when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum limit bandwidth, use the terminal device and the service device according to the minimum limit bandwidth. Broadband is billed, and the minimum restricted bandwidth is the bandwidth corresponding to the minimum restricted traffic;

The second charging unit is further configured to: in the case that the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum bandwidth, according to the difference between the terminal device and the service device Using the bandwidth used by the broadband, billing is performed on the broadband used by the terminal device and the service device.
The device according to any one of claims 33-39, wherein the first IP address acquisition request is a Domain Name System DNS request or a Hypertext Transfer Protocol HTTP DNS request.
A communication device, characterized in that it comprises:

The receiving unit is configured to receive an IP address obtaining request from the control device, and the service corresponding to the IP address obtaining request is a dedicated connection service;

The replacement unit is configured to replace the source IP address of the IP address acquisition request from a second IP address to a third IP address, where the second IP address is the IP address of the terminal device, and the third IP address is the gateway's IP address;

The sending unit is used to send a replacement IP address acquisition request to the control center;

The receiving unit is further configured to receive a first IP address response from the control center, where the first IP address response carries a first IP address, and the first IP address is determined by the control center according to the gateway The IP address of the service device where the business is located;

The replacement unit is further configured to replace the destination IP address of the first IP address response from the third IP address with the second IP address, and replace the first IP address with a fourth IP address To obtain a second IP address response, where the fourth IP address is an IP address allocated by the gateway for identifying whether the service is a dedicated connection service;

The sending unit is further configured to send the second IP address response to the control device.
The device according to claim 41, wherein the IP address acquisition request carries a service identifier, and the device further comprises:

A recording unit, configured to record the correspondence between the identifier and the second IP address and the fourth IP address;

The receiving unit is further configured to receive a data acquisition request from the control device;

A determining unit, configured to determine that the service corresponding to the data obtaining request and the IP address obtaining request is the same service according to the corresponding relationship and the source IP address and the destination IP address of the data obtaining request;

The replacement unit is further configured to replace the source IP address of the data acquisition request from the second IP address to the third IP address, and replace the source port of the data acquisition request from the first port to the first port. The second port is to replace the destination IP address of the data acquisition request from the fourth IP address to the first IP address, the first port is the port of the terminal device, and the second port is the The port of the gateway;

The sending unit is further configured to send a replacement data acquisition request to the service device corresponding to the first IP address;

The receiving unit is further configured to receive a data response from the service device, the data response carrying data of the service;

The replacement unit is further configured to replace the source IP address of the data response from the first IP address with the fourth IP address, and replace the destination IP address of the data response with the third IP address For the second IP address, replace the destination port of the data response from the second port to the first port;

The sending unit is further configured to send a replaced data response to the control device.
The device according to claim 42, wherein the device further comprises:

The first billing unit is configured to, when the broadband traffic used between the terminal device and the service device is less than the minimum limit traffic, use the terminal device and the service device according to the minimum limit traffic. Broadband billing;

The first billing unit is further configured to: when the broadband traffic used between the terminal device and the service device is greater than or equal to the minimum limit traffic, according to the difference between the terminal device and the service device The broadband usage traffic is billed for the broadband used by the terminal equipment and the service equipment.
The device according to claim 42, wherein the device further comprises:

The second billing unit is configured to, when the bandwidth of the broadband used between the terminal device and the service device is less than the minimum limit bandwidth, use the terminal device and the service device according to the minimum limit bandwidth. Broadband is billed, and the minimum restricted bandwidth is the bandwidth corresponding to the minimum restricted traffic;

The second charging unit is further configured to: in the case that the bandwidth of the broadband used between the terminal device and the service device is greater than or equal to the minimum bandwidth, according to the difference between the terminal device and the service device Using the bandwidth used by the broadband, billing is performed on the broadband used by the terminal device and the service device.
A communication device, characterized by comprising a processor, a memory, an input interface and an output interface, the input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send When other communication devices other than the communication device output information, the processor invokes the computer program stored in the memory to implement the method according to any one of claims 1-22.
A communication system, characterized in that it comprises:

The communication device according to any one of claims 23-31 and the communication device according to any one of claims 32-40; or

The communication device according to any one of claims 23-31 and the communication device according to any one of claims 41-44.
A computer-readable storage medium, characterized in that a computer program or computer instruction is stored in the computer-readable storage medium, and when the computer program or computer instruction is executed, it implements any one of claims 1-22 The method described.