CN103929784A - A user bandwidth control method, device and system - Google Patents

Abstract

The invention discloses a user bandwidth control method, device and system. The method includes: a policy management platform receives user agent UA information of a user terminal reported by an entrance server, and determines the user terminal according to the corresponding relationship between the UA information and the terminal type. The corresponding terminal type, and according to the determined terminal type and the preset bandwidth calculation rules, determine the network bandwidth required by the user terminal, and send a bandwidth control command to the AP/AC access network element according to the determined network bandwidth, indicating The AP/AC access network element performs corresponding bandwidth adjustment, wherein the UA information is obtained by the ingress server after parsing the received authentication message from the user terminal. Through the scheme of the present invention, it is possible to analyze UA information from the authentication message reported by the user terminal, determine and adjust the corresponding network bandwidth according to the UA information of the user terminal, and improve the utilization rate of wireless resources.

Description

A user bandwidth control method, device and system

technical field

The present invention relates to the technical field of wireless communication, in particular to a user bandwidth control method, device and system based on WLAN (Wireless Local Area Networks, wireless local area network).

Background technique

With the increasing popularity of smart terminals, such as smart phones and tablet computers, using WiFi (Wireless Fidelity, wireless fidelity) to log in to the Internet has gradually become one of the most important ways for users to use the Internet. Users can not only log in to the WLAN network through terminals such as computers, but also use terminals such as smart phones to log in to the WLAN network.

As shown in Figure 1, it is a schematic diagram of a WLAN network authentication process when a user terminal uses a WLAN network to log in to the Internet in the prior art, and the authentication process mainly includes the following steps:

Step 101: When using the WLAN network, the user terminal sends an HTTP Request (Hypertext Transfer Protocol request) message to the AP/AC (Wireless Access Point/Access Controller, wireless access point/access control point) access network element;

Step 102: The AP/AC access network element forwards the HTTP Request message to the Portal (entrance) server;

Step 103: the Portal server returns an HTTP Response (hypertext transfer protocol response) message to the user terminal according to the received HTTP Request message, and establishes a communication connection with the user terminal;

Step 104: the user terminal initiates an Https Post U/P (user password and identity information report under the secure hypertext transfer protocol) authentication message to the Portal server, which carries the user name information of the user terminal and the password information of the user terminal;

Step 105: The Portal server receives the authentication message, and returns a ReqAuth (request authorization) message to the AP/AC access network element;

Step 106: The AP/AC access network element initiates an Access Request (access request) message to the Radius (Remote Authentication Dial In UserService, remote authentication dial in user service) server;

Step 107: The Radius server performs awakening authentication on the user terminal, and returns an Access Accept (successful access, successful authentication) message to the AP/AC access network element after the authentication is successful;

Step 108: The AP/AC access network element returns an Ack Auth (authorization confirmation) message to the Portal server;

Step 109: the Portal server displays the corresponding page to the user terminal, and returns the Http Responseportal-url (HTTP Uniform Resource Locator response from the portal server) message;

Step 110: The Portal server sends an AFF Ack Auth (confirmation authorization) message to the AP/AC access network element, notifying the AP/AC access network element to release the user terminal;

Step 111 and Step 112: The AP/AC access network element reports the billing information to the billing system through the Radius server, and the billing system completes the billing operation of the user terminal based on the service usage information of the user terminal, WLAN usage time, traffic, etc. .

The applicant found that, in the above-mentioned authentication process, when the user terminal uses the WLAN service to log in to the Portal server to fill in the user name and password, no matter what type of terminal the user terminal belongs to or what terminal service it uses, the Radius server cannot obtain the information of the user terminal. information such as the terminal type of the user terminal, that is, the user terminal can only be allocated a fixed network bandwidth according to the user number used by the user terminal for WLAN network authentication; however, since different user terminals correspond to different usage scenarios, therefore, correspondingly The corresponding network bandwidth requirements are also different. If each user terminal is allocated a fixed network bandwidth according to the existing WLAN network bandwidth allocation method, due to the limitation of the AP capacity, it will inevitably lead to a problem under the coverage of the busy AP. Some user terminals cannot log in normally, and the bandwidth services of user terminals cannot be increased as required under the coverage of idle APs, that is, wireless resources cannot be effectively used; at the same time, due to the co-channel interference characteristics of WLAN networks, the capacity of APs cannot pass the simple Therefore, it is necessary to provide a new network bandwidth allocation method to perform different policy control according to different user terminals and improve the utilization rate of wireless resources.

Contents of the invention

Embodiments of the present invention provide a user bandwidth control method, device and system to solve the problem in the prior art of low utilization of wireless resources caused by allocating fixed network bandwidth to user terminals.

A user bandwidth control method, comprising:

The policy management platform receives the UA (User Agent, user agent) information of the user terminal reported by the Portal server, wherein the UA information is obtained by the Portal server analyzing the received authentication message from the user terminal;

The policy management platform determines the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determines the network bandwidth required by the user terminal according to the determined terminal type and preset bandwidth calculation rules. bandwidth, and, according to the determined network bandwidth, sending a bandwidth control instruction to the AP/AC access network element, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

A user bandwidth control method, the method comprising:

The Portal server receives the authentication message reported by the user terminal; and,

Parse the UA information from the authentication message, and report the parsed UA information to the policy management platform, and the policy management platform performs the following operations according to the received UA information:

determining the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determining the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, and, Sending a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

A policy management platform comprising:

The information receiving module is used to receive the UA information of the user terminal reported by the Portal server, wherein the UA information is obtained by the Portal server analyzing the received authentication message from the user terminal;

A terminal determination module, configured to determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type;

A bandwidth determination module, configured to determine the network bandwidth required by the user terminal according to the determined terminal type and preset bandwidth calculation rules;

An instruction sending module, configured to send a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, and instruct the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

A Portal server, comprising:

The receiving module is used to receive the authentication message reported by the user terminal;

A parsing module, configured to parse out the UA information from the received authentication message;

The sending module is used to report the parsed UA information to the policy management platform, and the policy management platform performs the following operations according to the received UA information:

determining the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determining the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, and, Sending a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

A user bandwidth control system, comprising:

The Portal server is used to receive the authentication message reported by the user terminal, and analyze the UA information from the authentication message, and report the resolved UA information to the policy management platform;

The policy management platform is configured to receive the UA information of the user terminal reported by the Portal server, and determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and, according to the determined terminal type and the predetermined Determine the network bandwidth required by the user terminal according to the set bandwidth calculation rule, and send a bandwidth control command to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element to The bandwidth control instructions described above perform the corresponding bandwidth adjustments.

The beneficial effects of the present invention are as follows:

Embodiments of the present invention provide a user bandwidth control method, device, and system. The Portal server parses the UA information from the authentication message from the user terminal, and reports the parsed UA information to the policy management platform; the policy management platform according to The corresponding relationship between the UA information and the terminal type determines the terminal type corresponding to the user terminal, and determines the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rule, and, according to the determined network bandwidth , sending a bandwidth control instruction to the AP/AC access network element, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction. Through the technical scheme of the present invention, it is possible to analyze UA information from the authentication message reported by the user terminal, determine and adjust the corresponding network bandwidth according to the UA information of the user terminal, and improve the utilization rate of wireless resources.

Description of drawings

FIG. 1 is a schematic diagram of a WLAN network authentication process in the prior art;

FIG. 2 is a schematic flowchart of the user bandwidth control method described in Embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of the WLAN network authentication process described in Embodiment 1 of the present invention;

Fig. 4 is a schematic structural diagram of the Portal server described in Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of the policy management platform described in Embodiment 3 of the present invention;

FIG. 6 is a schematic structural diagram of the user bandwidth control system in Embodiment 4 of the present invention.

Detailed ways

The embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

Embodiment one:

As shown in FIG. 2, it is a schematic flowchart of the user bandwidth control method described in Embodiment 1 of the present invention, and the method includes the following steps:

Step 201: the Portal server receives the authentication message reported by the user terminal, parses the UA information from the authentication message, and reports the parsed UA information to the policy management platform.

Specifically, the UA information is the terminal information of the user terminal, for example, the terminal type of the user terminal, the terminal screen size and other information.

It should be noted that the authentication message is sent by the user terminal to the Portal server after the user terminal sends the HTTP Request message to the Portal server through the AP/AC access network element and receives the HTTP Response message returned by the Portal server. There is user name information and user number information of the user terminal, which are not limited in this embodiment of the present invention.

Step 202: The policy management platform receives the UA information of the user terminal reported by the Portal server, and determines the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and, according to the determined terminal type and the predetermined The set bandwidth calculation rule determines the network bandwidth required by the user terminal.

Specifically, the corresponding relationship between the UA information stored on the policy management platform and the terminal type is uploaded in real time or regularly by systems such as BOSS (Business & Operation Support System) and/or BI (Business Intelligence, business intelligence system) Yes, this embodiment of the present invention does not make any limitation thereto.

Specifically, the policy management platform determines the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, which may include:

The policy management platform determines the service information corresponding to the user terminal stored locally according to the determined terminal type, and according to the determined terminal type of the user terminal and the service information corresponding to the user terminal (such as broadband type such as WLAN) data service information), and determine the network bandwidth required by the user terminal according to the preset bandwidth calculation rules; wherein, the service information of the user terminal stored in the policy management platform is determined by BOSS and/or BI, etc. The system uploads in real time or at regular intervals, which is not limited in this embodiment of the present invention.

It should be noted that after the policy management platform determines the terminal type corresponding to the user terminal and before determining the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rules, the method may further include The following steps:

The policy management platform sends the terminal type of the determined user terminal to the Portal server, and receives the bandwidth policy application request sent by the Radius server, wherein the bandwidth policy application request is received by the Radius server according to the received information from the AP/AC interface. The access request (AccessRequest) of the network element is sent after the wake-up authentication of the user terminal; in addition, the access request received by the Radius server from the AP/AC access network element is an AP/AC access Sent by the network element after receiving the request authorization (Req Auth) message from the Portal server.

Further, the policy management platform may determine the network bandwidth required by the user terminal according to the bandwidth policy application request after receiving the bandwidth policy application request sent by the Radius server.

Step 203: The policy management platform sends a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

Specifically, the bandwidth control instruction may carry bandwidth policy level information, uplink bandwidth and downlink bandwidth information, etc., which is not limited in this embodiment of the present invention.

Further, the method may also include the following steps:

The policy management platform sends the determined service information corresponding to the user terminal to a charging system, and the charging system charges the user terminal.

Specifically, as shown in FIG. 3 , it is a schematic diagram of a WLAN network authentication process corresponding to the user bandwidth control method described in Embodiment 1 of the present invention. At this time, the WLAN network authentication process may include the following steps:

Step 301: When using the WLAN network, the user terminal sends an HTTPRequest message to the AP/AC access network element;

Step 302: The AP/AC access network element forwards the HTTP Request message to the Portal server;

Step 303: the Portal server returns an HTTP Response message to the user terminal according to the received HTTP Request message, and establishes a communication connection with the user terminal;

Step 304: the user terminal initiates an Https Post U/P authentication message to the Portal server;

Step 305: the Portal server receives the Https Post U/P authentication message reported by the user terminal, and parses out the UA information from the authentication message, and reports the parsed UA information to the policy management platform;

Step 306: The policy management platform receives the UA information of the user terminal reported by the Portal server, and determines the corresponding terminal type of the user terminal according to the correspondence between the locally stored UA information and the terminal type, that is, performs terminal type matching;

Step 307: the policy management platform sends the determined terminal type of the user terminal to the Portal server;

Step 308: The Portal server performs corresponding adaptation according to the terminal type information of the user terminal, and returns a Req Auth message to the AP/AC access network element;

Step 309: The AP/AC access network element initiates an Access Request message to the Radius server;

Step 310: the Radius server performs wake-up authentication on the user terminal;

Step 311: the Radius server sends a bandwidth policy application request to the policy management platform;

Step 312: The policy management platform determines the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rules, that is, performs bandwidth policy calculation;

Step 313: The policy management platform issues a bandwidth policy to the Radius server according to the determined network bandwidth, that is, issues a bandwidth control command to the Radius server;

Step 314: The Radius server returns an Access Accept message to the AP/AC access network element, and forwards the bandwidth control command to the AP/AC access network element;

Step 315: The AP/AC access network element returns an AckAuth message to the Portal server, that is, reports authentication information and policy execution information to the Portal server;

Step 316: the Portal server displays the corresponding page to the user terminal;

Step 317: The Portal server sends an AFF Ack Auth message to the AP/AC access network element, notifying the AP/AC access network element to release the user terminal;

Steps 318 and 319: The AP/AC access network element reports the charging information to the billing system through the Radius server, and the billing system completes the charging operation of the user terminal based on the service usage information of the user terminal, WLAN usage time, traffic, etc.

Embodiment 1 of the present invention provides a user bandwidth control method. The Portal server parses out the UA information from the authentication message from the user terminal, and reports the parsed UA information to the policy management platform; According to the corresponding relationship between terminal types, determine the terminal type corresponding to the user terminal, and determine the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rules, and, according to the determined network bandwidth, send a message to the AP The /AC access network element sends a bandwidth control instruction, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction. Through the technical solution described in Embodiment 1 of the present invention, after the Portal server is transformed, the Portal server can be parsed out of the UA information from the Https Post U/P authentication message reported by the user terminal, and then the policy management platform can according to the user terminal Determine and adjust the corresponding network bandwidth based on UA information, which makes up for the defect in the prior art that user terminal type information cannot be obtained during WLAN network authentication, and achieves the purpose of allocating network bandwidth to user terminals based on terminal type information , improving the utilization rate of WLAN wireless resources.

Embodiment two:

As shown in Figure 4, it is the structural representation of Portal server described in the second embodiment of the present invention, and described Portal server comprises receiving module 11, parsing module 12 and sending module 13, wherein:

The receiving module 11 is used to receive the authentication message reported by the user terminal; it should be noted that the authentication message is that the user terminal sends an HTTPRequest message to the Portal server through the AP/AC access network element and receives the Portal server to return After the HTTP Response message, it is sent to the Portal server, which also carries the user name information and user number information of the user terminal, which is not limited in this embodiment of the present invention.

The parsing module 12 is used to parse out UA information from the received authentication message; specifically, the UA information is the terminal information of the user terminal, for example, the terminal type of the user terminal, the terminal screen size and other information.

The sending module 13 is used to report the parsed UA information to the policy management platform, and the policy management platform performs the following operations according to the received UA information:

determining the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determining the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, and, Sending a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

Embodiment three:

As shown in Figure 5, it is a schematic structural diagram of the policy management platform described in Embodiment 3 of the present invention. The policy management platform may be a server or other equipment, which is not limited in this embodiment of the present invention. Specifically, the policy The management platform includes an information receiving module 21, a terminal determining module 22, a bandwidth determining module 23 and an instruction issuing module 24, wherein:

The information receiving module 21 is used to receive the UA information of the user terminal reported by the Portal server, wherein the UA information is obtained by the Portal server analyzing the received authentication message from the user terminal; specifically, the The UA information is the terminal information of the user terminal, for example, the terminal type of the user terminal, the terminal screen size and other information.

The terminal determination module 22 is configured to determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type; specifically, the correspondence between the UA information and the terminal type is provided by BOSS and/or BI and other systems upload in real time or at regular intervals, which is not limited in this embodiment of the present invention.

The bandwidth determination module 23 is used to determine the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rule; type, determine the service information corresponding to the user terminal stored locally, and determine the user terminal according to the determined terminal type of the user terminal and the service information corresponding to the user terminal according to a preset bandwidth calculation rule Required network bandwidth; wherein, the service information of the user terminal stored locally is uploaded in real time or regularly by systems such as BOSS and/or BI, which is not limited in this embodiment of the present invention.

The instruction sending module 24 is configured to send a bandwidth control instruction to the AP/AC access network element according to the determined network bandwidth, and instruct the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction.

Further, the policy management platform also includes a business reporting module 25:

The service reporting module 25 is configured to send the determined service information corresponding to the user terminal to a charging system, and the charging system charges the user terminal.

Embodiment four:

As shown in FIG. 6, it is a schematic structural diagram of the user bandwidth control system described in Embodiment 4 of the present invention. The system includes a Portal server 31 and a policy management platform 32, and also includes an AP/AC access network element, a Radius server, Billing system, BOSS system and BI system, etc., among which:

The Portal server 31 is used to receive the authentication message reported by the user terminal, and analyze the UA information from the authentication message, and report the resolved UA information to the policy management platform 32; it should be noted that the The authentication message is sent by the user terminal to the Portal server 31 after the user terminal sends an HTTP Request message to the Portal server 31 through the AP/AC access network element and receives the HTTP Response message returned by the Portal server 31. User name information and user number information, etc., are not limited in this embodiment of the present invention.

The policy management platform 32 is configured to receive the UA information of the user terminal reported by the Portal server, and determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and, according to the determined terminal type, and a preset bandwidth calculation rule, determine the network bandwidth required by the user terminal, and send a bandwidth control command to the AP/AC access network element according to the determined network bandwidth, instructing the AP/AC access network element Perform corresponding bandwidth adjustment according to the bandwidth control instruction.

Specifically, the policy management platform 32 may be configured to determine locally stored service information corresponding to the user terminal according to the determined terminal type, and to , according to a preset bandwidth calculation rule, determine the network bandwidth required by the user terminal; wherein, the service information of the user terminal stored locally is uploaded in real time or regularly by systems such as BOSS and/or BI, and this The embodiment of the invention does not make any limitation on this.

Furthermore, the policy management platform 32 can also be used to determine the network bandwidth required by the user terminal after determining the terminal type corresponding to the user terminal and before determining the network bandwidth required by the user terminal according to the determined terminal type and the preset bandwidth calculation rules. The determined terminal type of the user terminal is sent to the Portal server 31, and receives the bandwidth policy application request sent by the Radius server, wherein the bandwidth policy application request is that the Radius server receives the access from the AP/AC access network element. Access Request (AccessRequest), which is sent after wake-up authentication of the user terminal; in addition, the access request received by the Radius server from the AP/AC access network element is that the AP/AC access network element receives Sent after the request authorization (Req Auth) message from the Portal server 31.

Further, the policy management platform 32 may also be configured to send the determined service information corresponding to the user terminal to a charging system, and the charging system charges the user terminal.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A user bandwidth control method, characterized in that the method comprises: The policy management platform receives the user agent UA information of the user terminal reported by the entrance Portal server, wherein the UA information is obtained by the Portal server analyzing the received authentication message from the user terminal; The policy management platform determines the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determines the network bandwidth required by the user terminal according to the determined terminal type and preset bandwidth calculation rules. bandwidth, and, according to the determined network bandwidth, send a bandwidth control instruction to the access point/access control point AP/AC access network element, instructing the AP/AC access network element to perform corresponding bandwidth adjustment. 2. The user bandwidth control method according to claim 1, wherein the policy management platform determines the network bandwidth required by the user terminal according to the determined terminal type and preset bandwidth calculation rules, specifically comprising : The policy management platform determines the service information corresponding to the user terminal stored locally according to the determined terminal type, and according to the determined terminal type of the user terminal and the service information corresponding to the user terminal, according to the preset A bandwidth calculation rule, determining the network bandwidth required by the user terminal; Wherein, the service information of the user terminal stored in the policy management platform is uploaded in real time or periodically by the business operation support system BOSS and/or the business intelligence system BI. 3. The user bandwidth control method according to claim 2, wherein the method further comprises: The policy management platform sends the determined service information corresponding to the user terminal to a charging system, and the charging system charges the user terminal. 4. A user bandwidth control method, characterized in that the method comprises: The ingress Portal server receives the authentication message reported by the user terminal; and, Parse the user agent UA information from the authentication message, and report the parsed UA information to the policy management platform, and the policy management platform performs the following operations according to the received UA information: determining the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determining the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, and, According to the determined network bandwidth, send a bandwidth control instruction to an access point/access control point AP/AC access network element, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction. 5. A policy management platform, characterized in that it comprises: The information receiving module is used to receive the user agent UA information of the user terminal reported by the entrance Portal server, wherein the UA information is obtained by the Portal server analyzing the received authentication message from the user terminal; A terminal determination module, configured to determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type; A bandwidth determination module, configured to determine the network bandwidth required by the user terminal according to the determined terminal type and preset bandwidth calculation rules; An instruction sending module, configured to send a bandwidth control instruction to an access point/access control point AP/AC access network element according to the determined network bandwidth, and instruct the AP/AC access network element to follow the bandwidth control instruction Perform bandwidth adjustments accordingly. 6. The strategy management platform as claimed in claim 5, characterized in that, The bandwidth determining module is specifically configured to determine locally stored service information corresponding to the user terminal according to the determined terminal type, and according to the determined terminal type of the user terminal and the service information corresponding to the user terminal, according to Pre-set bandwidth calculation rules to determine the network bandwidth required by the user terminal; Wherein, the service information of the user terminal stored locally is uploaded in real time or periodically by the business operation support system BOSS and/or the business intelligence system BI. 7. The strategy management platform as claimed in claim 6, characterized in that, the strategy management platform also includes a business reporting module: The service reporting module is configured to send the determined service information corresponding to the user terminal to a charging system, and the charging system charges the user terminal. 8. A kind of entrance Portal server, is characterized in that, comprises: The receiving module is used to receive the authentication message reported by the user terminal; A parsing module, configured to parse out user agent UA information from the received authentication message; The sending module is used to report the parsed UA information to the policy management platform, and the policy management platform performs the following operations according to the received UA information: determining the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and determining the network bandwidth required by the user terminal according to the determined terminal type and a preset bandwidth calculation rule, and, According to the determined network bandwidth, send a bandwidth control instruction to an access point/access control point AP/AC access network element, instructing the AP/AC access network element to perform corresponding bandwidth adjustment according to the bandwidth control instruction. 9. A user bandwidth control system, characterized in that the system comprises: The entrance Portal server is used to receive the authentication message reported by the user terminal, and parse out the user agent UA information from the authentication message, and report the parsed UA information to the policy management platform; The policy management platform is configured to receive the UA information of the user terminal reported by the Portal server, and determine the terminal type corresponding to the user terminal according to the correspondence between the locally stored UA information and the terminal type, and, according to the determined terminal type and the predetermined Determine the network bandwidth required by the user terminal according to the set bandwidth calculation rule, and send a bandwidth control instruction to the access point/access control point AP/AC access network element according to the determined network bandwidth, instructing the The AP/AC access network element performs corresponding bandwidth adjustment according to the bandwidth control instruction. 10. The user bandwidth control system according to claim 9, wherein: The policy management platform is specifically configured to determine locally stored service information corresponding to the user terminal according to the determined terminal type, and according to the determined terminal type of the user terminal and the service information corresponding to the user terminal, according to Pre-set bandwidth calculation rules to determine the network bandwidth required by the user terminal; wherein, the service information of the user terminal stored in the policy management platform is provided by the business operation support system BOSS and/or the business intelligence system BI uploaded in real time or at regular intervals.