WO2014101147A1

WO2014101147A1 - Bandwidth parameter adjustment method, gateway and enforcement functional entity

Info

Publication number: WO2014101147A1
Application number: PCT/CN2012/087926
Authority: WO
Inventors: 郭书蕾; 路陈红
Original assignee: 华为技术有限公司
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2014-07-03
Also published as: CN104025606A

Abstract

Provided are a bandwidth parameter adjustment method, a gateway and an enforcement functional entity, which relate to the field of communications. The method comprises: according to interaction information between a terminal and a server when the terminal requests a hyper text transfer protocol (HTTP) video service to the server, acquiring a demand bandwidth parameter of the video service; and sending the acquired demand bandwidth parameter of the video service to an enforcement functional entity, so as to enable the enforcement functional entity to adjust a bandwidth parameter of the video service according to the demand bandwidth parameter. By acquiring a demand bandwidth parameter of a video service according to the interaction information between a terminal and a server when the terminal requests an HTTP video service to the server, and sending the demand bandwidth parameter to an enforcement functional entity, so as to enable the enforcement functional entity to adjust a bandwidth parameter of the video service according to the demand bandwidth parameter, the present invention solves the problem in the prior art that the bandwidth cannot be flexibly adjusted according to different video services, thereby achieving the purpose of optimizing the network performance.

Description

Description of the bandwidth parameter adjustment method, gateway and executive function entity

The present invention relates to the field of communications, and in particular, to a bandwidth parameter adjustment method, a gateway, and an execution function entity. Background technique

With the continuous development of the communication field, video services have gradually become one of the most popular network services. Especially in the field of wireless broadband communication, video traffic has gradually become a major component of mobile broadband traffic. Since the bandwidth required for the video service is often large, in order to ensure the smooth transmission of the video service, it is often necessary to perform separate bandwidth guarantee for the video service.

The existing bandwidth parameter adjustment method mainly detects the type of network service. If the current network service is detected as a video service, the bandwidth parameter of the video service is adjusted to a fixed value.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems: The existing bandwidth parameter adjustment method, all video services, whose adjusted bandwidth parameter values are fixed. Because different video services often have large differences in bandwidth parameters due to different video content, the existing technologies cannot flexibly adjust bandwidth according to different video services, which has a great impact on network transmission performance. If the bandwidth parameter value is too large, and the bandwidth parameter required by the video service is small, bandwidth resources are wasted. If the bandwidth parameter value is too small, and the bandwidth parameter required by the video service is large, the video service transmission may occur. Not smooth, affecting the playback effect. Summary of the invention

In order to solve the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, the embodiment of the present invention provides a bandwidth parameter adjustment method, a gateway, and an execution function entity. The technical solution is as follows:

In a first aspect, a method for adjusting a bandwidth parameter is provided, where the method includes:

Obtaining a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server;

Sending the obtained required bandwidth parameter of the video service to the execution function entity, so that the The line function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter; the interaction information includes: a first request sent by the terminal when requesting, by the terminal, the page or fragment information corresponding to the video service, a second sent by the server to the terminal in response to the first request, and after the terminal receives the response to the first request, requesting, by the server, a video file corresponding to the video service Any one or more of the requests.

In a first possible implementation manner of the first aspect, the interaction information includes: the first request, where the first request carries video identification information corresponding to the video service;

And obtaining the required bandwidth parameter of the video service according to the interaction information between the two, when the terminal requests the Hypertext Transfer Protocol (HTTP) video service from the server, including:

Detecting, according to the video identification information corresponding to the video service that is carried in the first request, whether a video file corresponding to the video service is stored in the local cache;

If it is detected that the video file corresponding to the video service is stored in the local cache, the required bandwidth parameter of the video service corresponding to the video file is obtained from the local cache;

The video identification information includes: one or two of a uniform resource locator URL and a video file identifier of the video file.

In a second possible implementation manner of the first aspect, the interaction information includes: the response to the first request;

Detecting whether the response to the first request includes video feature information, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

If it is detected that the response to the first request includes video feature information, the ratio of the video file size and the video playing duration is used as a required bandwidth parameter of the video service, or the video code is used. The rate is a demand bandwidth parameter of the video service.

In a third possible implementation manner of the first aspect, the interaction information includes: the second request, where the second request carries video identification information corresponding to the video service;

Detecting, according to the video identification information corresponding to the video service that is carried in the second request, whether a video file corresponding to the video service is stored in the local cache; If it is detected that the video file corresponding to the video service is stored in the local cache, the required bandwidth parameter of the video service corresponding to the video file is obtained from the local cache;

The video identification information includes: one or two of a uniform resource locator URL and a video file identifier of the video file;

Or,

Detecting whether the second feature includes video feature information, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

If the video feature information is included in the second request, the ratio of the video file size to the video playback duration is used as the required bandwidth parameter of the video service, or the video code rate is used as the video. The demand bandwidth parameter of the service.

In combination with the first possible implementation manner or the third possible implementation manner of the first aspect, in a fourth possible implementation, if the video file corresponding to the video service is not stored in the local cache, the method is further Includes:

Receiving a video file corresponding to the second request;

And parsing the received video file to obtain video feature information of the video file, where the video feature information includes: a video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

The ratio of the video file size to the video playback duration is used as a required bandwidth parameter of the video service, or the video code rate is used as a required bandwidth parameter of the video service.

The required bandwidth parameter is stored in the local cache corresponding to the video file.

With reference to the fourth possible implementation manner of the foregoing aspect, in a fifth possible implementation manner, after the required bandwidth parameter of the obtained video service is sent to the execution function entity, the method further includes:

Forwarding the locally cached video file to the terminal;

Detecting whether the video file is forwarded or not, and if it is detected that the video file is forwarded, sending the service end information of the video service to the execution function entity, so that the execution function entity according to the service end information The bandwidth parameter of the video service is restored to the state before the adjustment.

In a second aspect, a method for adjusting a bandwidth parameter is provided, where the method includes:

Receiving a required bandwidth parameter of the hypertext transfer protocol HTTP video service sent by the gateway; determining a target bandwidth parameter of the video service according to the required bandwidth parameter; Adjusting a bandwidth parameter of the video service according to the determined target bandwidth parameter. In a first possible implementation manner of the second aspect, the determining, by the required bandwidth parameter, the target bandwidth parameter of the video service, includes:

Determining, according to the required bandwidth parameter, a target bandwidth parameter of the video service according to a predetermined policy;

Or,

Forwarding the required bandwidth parameter to the rule function entity, so that the rule function entity determines a target bandwidth parameter of the video service according to the required bandwidth parameter according to the predetermined policy;

Receiving a target bandwidth parameter of the video service returned by the rule function entity;

The predetermined policy includes:

Comparing the required bandwidth parameter with a locally stored user subscription bandwidth parameter, and using one of the smaller values as the target bandwidth parameter;

Or comparing the required bandwidth parameter with a locally stored service support bandwidth parameter, and using a smaller one of the values as the target bandwidth parameter;

Or comparing the required bandwidth parameter with a maximum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and using one of the smaller values as the target bandwidth parameter; or, the required bandwidth The parameter is compared with the minimum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and the smaller one of the parameters is used as the target bandwidth parameter.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation, the adjusting the bandwidth parameter of the video service according to the target bandwidth parameter includes:

Detecting whether the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service;

If the target bandwidth parameter is greater than the original bandwidth parameter of the video service, the bandwidth adjustment request is sent to the bandwidth control node, where the bandwidth adjustment request includes the target bandwidth parameter, so that the bandwidth control node The current bandwidth parameter of the video service is adjusted from the original bandwidth parameter to the target bandwidth parameter.

With the second possible implementation of the second aspect, in a third possible implementation, after the sending the bandwidth adjustment request to the bandwidth control node, the method further includes:

Receiving service end information of the video service sent by the gateway;

Sending a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes original bandwidth information of the video service, so that the bandwidth control node uses the current bandwidth of the video service. The parameters are restored to the original bandwidth parameters.

In a third aspect, a gateway is provided, where the gateway includes:

a parameter obtaining module, configured to acquire a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the terminal;

a first sending module, configured to send, by the parameter obtaining module, a required bandwidth parameter of the video service to an execution function entity, so that the execution function entity adjusts a bandwidth parameter of the video service according to the required bandwidth parameter;

The interaction information includes: a first request sent by the terminal to the server for requesting a page or fragment information corresponding to the video service, a response sent by the server to the terminal, and a response to the first request, And receiving, by the terminal, any one or more of the second requests sent when the video file corresponding to the video service is requested by the server after receiving the response of the first request.

In a first possible implementation manner of the third aspect, the parameter obtaining module includes: a first detecting unit, configured to detect, according to the video identification information corresponding to the video service carried in the first request, whether the local cache is used Storing a video file corresponding to the video service;

The first obtaining unit is configured to: if the first detecting unit detects that the video file corresponding to the video service is stored in the local cache, obtain the video service requirement corresponding to the video file from the local cache Bandwidth parameter

In a second possible implementation manner of the third aspect, the parameter obtaining module includes: a second detecting unit, configured to detect whether the response to the first request includes video feature information, and the video feature The information includes: video capacity information or video code rate, and the video capacity information includes: a video file size and a video playing duration;

a second acquiring unit, configured to: if the second detecting unit detects that the response to the first request includes video feature information, use a ratio of the video file size and a video playing duration as the video The required bandwidth parameter of the service, or the video bit rate is used as a required bandwidth parameter of the video service.

In a third possible implementation manner of the third aspect, the parameter obtaining module includes: a third detecting unit, configured to detect, according to the video identification information corresponding to the video service carried in the second request, whether the local cache is used Storing a video file corresponding to the video service;

a third acquiring unit, configured to: if the third detecting unit detects that the view is stored in a local cache The video file corresponding to the frequency service obtains the required bandwidth parameter of the video service corresponding to the video file from the local cache;

The parameter obtaining module further includes:

a fourth detecting unit, configured to detect whether the second request includes video feature information, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration ;

a fourth acquiring unit, configured to use, when the fourth detecting unit detects that the second request includes video feature information, a ratio of the video file size to a video playing duration as a required bandwidth parameter of the video service Or, the video code rate is used as a required bandwidth parameter of the video service.

With reference to the first possible implementation manner or the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the gateway further includes:

a receiving module, configured to: if the first detecting unit detects that the video file corresponding to the video service is not stored in the local cache, and the third detecting unit detects that the video service is not stored in the local cache a video file, receiving a video file corresponding to the second request;

The parameter obtaining module further includes:

a parsing unit, configured to parse the received video file, and obtain video feature information of the video file, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and Video playback time;

a fifth obtaining unit, configured to use, as a required bandwidth parameter of the video service, a ratio of the video file size and a video playing duration obtained by the parsing unit, or use the video bit rate obtained by the parsing unit as The required bandwidth parameter of the video service;

And a storage unit, configured to store the required bandwidth parameter acquired by the fifth acquiring unit and the video file received by the receiving module in a local cache.

In conjunction with the fourth possible implementation of the third aspect, in a fifth possible implementation, the gateway further includes:

a second sending module, configured to forward the locally cached video file to the terminal after the first sending module sends the required bandwidth parameter of the video service acquired by the parameter obtaining module to the executing function entity ;

a detecting module, configured to detect whether the video file is forwarded; a third sending module, configured to: if the detecting module detects that the video file is forwarded, send the service end information of the video service to the execution function entity, so that the execution function entity is configured according to the service end information. The bandwidth parameter of the video service is restored to the state before the adjustment.

A fourth aspect provides a gateway, where the gateway includes: a processor and a transmitter;

The processor is configured to acquire a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server;

The processor is further configured to: send, by the transmitter, the required bandwidth parameter of the obtained video service to the execution function entity, so that the execution function entity adjusts a bandwidth parameter of the video service according to the required bandwidth parameter. ;

In a first possible implementation manner of the fourth aspect, the processor is configured to detect, according to the video identification information corresponding to the video service that is carried in the first request, whether the video service is stored in the local cache. Video file

The processor is further configured to: if it is detected that the video file corresponding to the video service is stored in the local cache, obtain a required bandwidth parameter of the video service that is stored in the local cache corresponding to the video file;

In a second possible implementation manner of the fourth aspect, the processor is configured to detect whether the response to the first request includes video feature information, where the video feature information includes: video capacity information or a video code rate, the video capacity information includes: a video file size and a video playing duration; the processor is further configured to: if it is detected that the response to the first request includes video feature information, The ratio of the video file size to the video playback duration is used as the required bandwidth parameter of the video service, or the video bit rate is used as the required bandwidth parameter of the video service.

In a third possible implementation manner of the fourth aspect, the processor is configured to detect, according to the video identification information corresponding to the video service that is carried in the second request, whether the video service is stored in the local cache. Video file The processor is further configured to: if it is detected that the video file corresponding to the video service is stored in the local cache, obtain a required bandwidth parameter of the video service that is stored in the local cache corresponding to the video file;

The processor is configured to detect whether video feature information is included in the second request, where the video feature information includes: video capacity information or video code rate, where the video capacity information includes: a video file size and a video playing duration ;

The processor is further configured to: if a video feature information is included in the second request, use a ratio of the video file size and a video playback duration as a required bandwidth parameter of the video service, or The video bit rate is used as a demand bandwidth parameter of the video service.

With reference to the first possible implementation manner or the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the gateway further includes: a receiver and a memory;

The receiver is configured to: if the processor detects that the video file corresponding to the video service is not stored in the local cache, receive the video file corresponding to the second request;

The processor is configured to parse the received video file, and obtain video feature information of the video file, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file Size and length of video playback;

The processor is further configured to use the obtained ratio of the video file size and the video playback duration as the required bandwidth parameter of the video service, or use the video code rate acquired by the parsing unit as the video. Demand bandwidth parameter of the service;

The processor is further configured to store the acquired required bandwidth parameter in the memory corresponding to the received video file.

With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation, the processor, after the required bandwidth parameter of the video service that is acquired by the transmitter is sent to an execution function entity Controlling, by the transmitter, the locally buffered video file to be forwarded to the terminal;

The processor is configured to detect whether the video file is forwarded;

The processor, if it is detected that the forwarding of the video file is completed, controlling the transmitter to send the service end information of the video service to the execution function entity, so that the execution function entity ends according to the service The information restores the bandwidth parameter of the video service to the state before the adjustment. The fifth aspect provides an execution function entity, where the execution function entity includes: a parameter receiving module, configured to receive a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway;

a target parameter determining module, configured to determine a target bandwidth parameter of the video service according to the required bandwidth parameter received by the parameter receiving module;

And an adjusting module, configured to adjust a bandwidth parameter of the video service according to the target bandwidth parameter determined by the target parameter determining module.

In a first possible implementation manner of the fifth aspect, the target parameter determining module includes: a first determining unit, configured to determine, according to the required bandwidth parameter, a target bandwidth parameter of the video service according to a predetermined policy;

a sending unit, configured to forward the required bandwidth parameter to the rule function entity, so that the rule function entity determines a target bandwidth parameter of the video service according to the required bandwidth parameter according to the predetermined policy;

a receiving unit, configured to receive a target bandwidth parameter of the video service returned by the rule function entity;

The predetermined policy includes:

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the adjusting module includes:

a detecting unit, configured to detect whether the target bandwidth parameter determined by the target parameter determining module is greater than an original bandwidth parameter of the locally stored video service;

a requesting unit, configured to send a bandwidth adjustment request to the bandwidth control node, if the detecting unit detects that the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service, where the bandwidth adjustment request includes a target bandwidth parameter, such that the bandwidth control node will view the video industry The current bandwidth parameter of the service is adjusted by the original bandwidth parameter to the target bandwidth parameter.

With reference to the second possible implementation manner of the fifth aspect, in a third possible implementation, the performing functional entity further includes:

An end information receiving module, configured to receive service end information of the video service sent by the gateway;

a requesting module, configured to send a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes original bandwidth information of the video service, so that the bandwidth control node recovers current bandwidth parameters of the video service To the original bandwidth parameter.

In a sixth aspect, an execution function entity is provided, where the execution function entity includes: a receiver and a processor;

The receiver is configured to receive a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway;

The processor is configured to determine a target bandwidth parameter of the video service according to a required bandwidth parameter received by the receiver;

The processor is configured to adjust a bandwidth parameter of the video service according to the determined target bandwidth parameter.

In a first possible implementation manner of the sixth aspect, the performing functional entity further includes: a transmitter, configured to determine, according to the required bandwidth parameter, a target bandwidth parameter of the video service according to a predetermined policy ;

The processor is further configured to control the transmitter to forward the required bandwidth parameter to a rule function entity, so that the rule function entity determines a target bandwidth parameter of the video service according to the required bandwidth parameter according to a predetermined policy. ;

The receiver is configured to receive a target bandwidth parameter of the video service returned by the rule function entity;

The predetermined policy includes:

Or comparing the required bandwidth parameter with a maximum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and using the smaller one of the values as the target bandwidth parameter; Or comparing the required bandwidth parameter with a minimum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and using the smaller one of the values as the target bandwidth parameter.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the processor is configured to detect whether the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service.

The processor is configured to: if it is detected that the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service, control the transmitter to send a bandwidth adjustment request to the bandwidth control node, where the bandwidth adjustment request is The target bandwidth parameter is included, so that the bandwidth control node adjusts a current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation, the receiver is further configured to receive service end information of the video service sent by the gateway; And controlling the transmitter to send a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes original bandwidth information of the video service, so that the bandwidth control node sets a current bandwidth parameter of the video service. Restore to the original bandwidth parameter.

In a seventh aspect, a bandwidth parameter adjustment system is provided, where the system includes:

A gateway as in the third aspect above, and the execution functional entity as described in the fifth aspect above. The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

Obtaining a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the terminal, and sending the required bandwidth parameter to the execution function entity, so that the execution function entity according to the required bandwidth The parameters adjust the bandwidth parameters of the video service, and solve the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and the network performance is optimized. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a flowchart of a method for adjusting a bandwidth parameter according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for adjusting a bandwidth parameter according to another embodiment of the present invention; FIG. 3 is a flowchart of another embodiment of the present invention. Method flow chart of bandwidth parameter adjustment method; 4 is a flowchart of a method for adjusting a bandwidth parameter according to an embodiment of the present invention; FIG. 5 is a flowchart of a method for adjusting a bandwidth parameter according to another embodiment of the present invention; FIG. 6 is a gateway according to an embodiment of the present invention; Schematic diagram of the structure;

FIG. 7 is a schematic structural diagram of a gateway according to another embodiment of the present invention;

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

FIG. 9 is a schematic structural diagram of a gateway according to another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an execution function entity according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an execution function entity according to another embodiment of the present invention;

FIG. 12 is a schematic structural diagram of an execution function entity according to an embodiment of the present invention; FIG.

FIG. 13 is a schematic structural diagram of an execution function entity according to another embodiment of the present invention;

FIG. 14 is a system configuration diagram of a bandwidth parameter adjustment system according to an embodiment of the present invention. detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Referring to FIG. 1 , a flowchart of a method for adjusting a bandwidth parameter according to an embodiment of the present invention is provided. The method for adjusting a bandwidth parameter may include:

Step 101: Obtain a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server.

The interaction information may include: a first request sent by the terminal to the server for requesting the page or the fragmentation information corresponding to the video service, a response sent by the server to the terminal to the first request, and the terminal receiving the first request Any one or more of the second requests sent when the video file corresponding to the video service is requested from the server after the response.

Step 102: Send the obtained required bandwidth parameter of the video service to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter.

In summary, the bandwidth parameter adjustment method provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transmission protocol HTTP video service from the server, and the requirement is obtained. The bandwidth parameter is sent to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and the network performance is optimized. For further description of the bandwidth parameter adjustment method corresponding to FIG. 1 above, please refer to FIG. 2, which is a flowchart of a method for adjusting a bandwidth parameter according to another embodiment of the present invention. The bandwidth parameter adjustment method may be applied to adjust a bandwidth parameter corresponding to an HTTP video service in a dedicated video optimization gateway, where the video optimization gateway may be deployed close to a gateway or node in an existing network, or the bandwidth parameter The adjustment method can be applied to a gateway or node in an existing network.

The bandwidth parameters corresponding to the HTTP video service are adjusted. For example, the method for adjusting a bandwidth parameter may include:

Step 201: The gateway obtains a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server.

The gateway can be independently deployed, a video optimized gateway for transmission performance optimization of video services, or a gateway or node common to existing networks. The gateway obtains the requirement of the video service according to the interaction information between the two parties when requesting the hypertext transfer protocol HTTP video service from the terminal. The bandwidth parameter may be as follows:

First, the first request may carry video identification information corresponding to the video service. When the interaction information includes the first request, the gateway detects, according to the video identification information corresponding to the video service carried in the first request, whether a video file corresponding to the video service is stored in the local cache; if the local cache is detected to be stored If there is a video file corresponding to the video service, the gateway obtains a required bandwidth parameter of the video service corresponding to the video file from the local cache. The video identification information includes: a uniform resource locator URL and a video file of the video file. One or both of the identifiers, the video file identifier may be a video file ID (IDentification, serial number).

Second, when the interaction information includes a response to the first request, the gateway detects whether the response to the first request includes video feature information, where the video feature information includes: video capacity information or a video code rate, where The video capacity information includes: a video file size and a video playing duration; if it is detected that the response to the first request includes video feature information, the gateway uses the ratio of the video file size and the video playing duration as the required bandwidth of the video service. The parameter, or, the video bit rate is used as the required bandwidth parameter of the video service. Third, the second request may also carry video identification information corresponding to the video service. When the interaction information includes the second request, the gateway detects, according to the video identification information corresponding to the video service carried in the second request, whether a video file corresponding to the video service is stored in the local cache; if it is detected that the local cache is stored The video file corresponding to the video service, the gateway obtains the required bandwidth parameter of the video service corresponding to the video file from the local cache, where the video identification information includes: a uniform resource locator URL and a video file identifier of the video file. One or two.

Fourth, the gateway may detect whether the second request includes video feature information, where the video feature information includes: video capacity information or video code rate, where the video capacity information includes: a video file size and a video playing duration; If the second request includes the video feature information, the gateway uses the ratio of the video file size and the video playing duration as the required bandwidth parameter of the video service, or uses the video bit rate as the required bandwidth parameter of the video service.

The fifth, further, if the gateway detects, according to the first request and/or the second request, that the video file corresponding to the video service is not stored in the local cache, the gateway may further receive the video file corresponding to the second request, and Parsing the received video file to obtain video feature information of the video file, where the video feature information includes: video capacity information or video code rate, where the video capacity information includes: a video file size and a video playing duration; the gateway will video files The ratio of the size and the length of the video playing time is used as the required bandwidth parameter of the video service, or the video bit rate is used as the required bandwidth parameter of the video service. Finally, the gateway stores the required bandwidth parameter in the local cache corresponding to the video file. .

It should be noted that each of the above five acquisition methods may be used separately to obtain the required bandwidth parameter of the video service, or multiple of them may be used in combination in a certain order.

Step 202: The gateway sends the obtained required bandwidth parameter of the video service to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter. The execution function entity may be an existing one. Policy and billing execution functional entities.

Step 203: The gateway forwards the video file corresponding to the video service that is locally cached to the terminal, and detects whether the video file is forwarded.

To improve the efficiency of the wireless air interface of the video service, the gateway can cache the video file corresponding to the video service to the local device, and then forward the cached video file to the terminal.

Step 204: If it is detected that the video file is forwarded, the gateway sends the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the adjustment according to the service end information. status.

When the video service ends, the gateway may send the service of the video service to the execution function entity. Ending the information, so that the execution function entity restores the bandwidth parameter of the video service to the state before the adjustment, so as to save network bandwidth resources.

In summary, the bandwidth parameter adjustment method provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transmission protocol HTTP video service from the server, and the requirement is obtained. The bandwidth parameter is sent to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and the network performance is optimized. In addition, the bandwidth parameter adjustment method provided by the embodiment of the present invention, when the video service ends, sends the service end information of the video service to the execution function entity, so that the execution function entity sends the video service according to the service end information. The bandwidth parameter is restored to the state before the adjustment, which solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. For further description of the process of acquiring the required bandwidth parameter of the video service in the bandwidth parameter adjustment method corresponding to FIG. 2, refer to FIG. 3, which is a flowchart of a method for adjusting a bandwidth parameter according to an embodiment of the present invention. . For example, the method for adjusting the bandwidth parameter provided by the embodiment of the present invention may include:

Step 301: The gateway detects, according to the first request that the terminal sends the page or the fragmentation information corresponding to the video service, whether the video file corresponding to the video service is stored in the local cache. Specifically, the terminal requests the video service from the server. The specific process may be as follows: The terminal sends a first request sent to the server when requesting the page or fragment information corresponding to the video service, and the server returns a response to the first request to the terminal, where the terminal receives the first request. After the response, the server sends a second request for the video file corresponding to the video service, and after receiving the second request, the server returns the video file corresponding to the video service to the terminal.

The first request may carry video identification information corresponding to the video service. The gateway detects, according to the video identification information corresponding to the video service carried in the first request, whether a video file corresponding to the video service is stored in the local cache. The video identification information includes: a uniform resource locator URL and a video of the video file. One or both of the file identifiers.

Step 302: If it is detected, according to the first request, that the video file corresponding to the video service is stored in the local cache, the gateway obtains a required bandwidth parameter of the video service corresponding to the video file from the local cache. The gateway also stores the required bandwidth parameter of the video service when the video file corresponding to the video service is stored in the local cache. For details, see steps 309 and 310.

Step 303: If it is detected, according to the first request, that the video file corresponding to the video service is not stored in the local cache, the gateway detecting whether the response to the first request returned by the server includes the video feature information;

The video feature information includes: a video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

Step 304: If it is detected that the response to the first request includes video feature information, the gateway acquires a required bandwidth parameter of the video service according to the video feature information.

Specifically, the gateway may use the ratio of the video file size and the video playing duration as the required bandwidth parameter of the video service, or use the video bit rate as the required bandwidth parameter of the video service.

Step 305: If it is detected that the response to the first request does not include the video feature information, the gateway may detect, according to the video identification information corresponding to the video service carried in the second request, whether the video is stored in the local cache. Video file corresponding to the business;

The video identification information includes: one or two of a uniform resource locator URL and a video file identifier of the video file. The gateway may detect, according to one or both of the uniform resource locator URL and the video file identifier of the video file, whether the video file corresponding to the video service is stored in the local cache.

Step 306: If it is detected that the video file corresponding to the video service is stored in the local cache, the gateway obtains a required bandwidth parameter of the video service corresponding to the video file from the local cache.

The gateway also stores the required bandwidth parameter of the video service when the video file corresponding to the video service is stored in the local cache. For details, see steps 309 and 310.

Step 307: If it is detected that the video file corresponding to the video service is not stored in the local cache, the gateway detects whether the second request includes the video feature information.

The video feature information includes: a video capacity information or a video bit rate, where the video capacity information includes: a video file size and a video playing duration.

Step 308: If it is detected that the second request includes video feature information, the gateway acquires a required bandwidth parameter of the video service according to the video feature information.

Step 309, if the gateway detects, according to the second request, that the video service is not stored in the local cache. And corresponding to the video file, the gateway may further receive the video file corresponding to the second request. Step 310, the gateway parses the received video file, obtains video feature information of the video file, and acquires the video service according to the video feature information. Demand bandwidth parameter, and storing the required bandwidth parameter in the local cache corresponding to the video file;

Specifically, the video feature information includes: a video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration; the gateway may use a ratio of a video file size and a video playing duration as the video service. The required bandwidth parameter, or the video bit rate is used as the required bandwidth parameter of the video service.

Step 311: The gateway sends the obtained required bandwidth parameter of the video service to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter. The execution function entity may be an existing one. Policy and billing execution functional entities.

Step 312: The gateway forwards the video file corresponding to the locally cached video service to the terminal, and detects whether the video file is forwarded.

Step 313, if it is detected that the video file is forwarded, the gateway sends the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the adjustment according to the service end information. status.

When the video service ends, the gateway may send the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the state before the adjustment, so as to save the network bandwidth resource. .

In summary, the bandwidth parameter adjustment method provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transmission protocol HTTP video service from the server, and the requirement is obtained. The bandwidth parameter is sent to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and the network performance is optimized. In addition, the bandwidth parameter adjustment method provided by the embodiment of the present invention, when the video service ends, sends the service end information of the video service to the execution function entity, so that the execution function entity sends the video service according to the service end information. The bandwidth parameter is restored to the state before the adjustment, which solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. Referring to FIG. 4, it is a flowchart of a method for adjusting a bandwidth parameter provided by an embodiment of the present invention, where the method can be applied to a policy and charging execution function entity deployed on a gateway or node in an existing network. Adjust the bandwidth parameters corresponding to the HTTP video service. The bandwidth parameter adjustment method may include:

Step 401: Receive a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway.

Step 402: Determine a target bandwidth parameter of the video service according to the required bandwidth parameter. Step 403: Adjust a bandwidth parameter of the video service according to the determined target bandwidth parameter.

In summary, the bandwidth parameter adjustment method provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter. The invention solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and achieves the purpose of optimizing network performance. For a more detailed description of the bandwidth parameter adjustment method corresponding to FIG. 4, please refer to FIG. 5, which is a flowchart of a method for adjusting a bandwidth parameter according to another embodiment of the present invention. The method can be applied to adjust the bandwidth parameters corresponding to the HTTP video service in the policy and charging execution function entity deployed on the gateway or node in the existing network. The bandwidth parameter adjustment method may include: Step 501: The function entity receives a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway;

The policy and charging execution function entity receives the required bandwidth parameter of the HTTP video service requested by the terminal sent by the gateway. The video optimization gateway may be a dedicated video optimization gateway, or may be a certain gateway or node in the existing network, such as a GGSN (Gateway GPRS Support Node) or a PGW in the 3G network ( Packet Gateway, Packet Gateway, or PDN-GW (Packet Data Network Gateway) in the LTE network.

Step 502: The performing functional entity determines a target bandwidth parameter of the video service according to the received required bandwidth parameter.

Specifically, the policy and charging execution function entity may determine a target bandwidth parameter of the video service according to the required bandwidth parameter and the predetermined policy;

Or,

The policy and charging execution function entity may also forward the required bandwidth parameter to the policy and charging rule function entity, so that the policy and charging rule function entity combines the predetermined policy according to the required bandwidth parameter. Slightly determining a target bandwidth parameter of the video service, and receiving a target bandwidth parameter of the video service returned by the policy and the charging rule function entity;

The predetermined policy may include:

Comparing the required bandwidth parameter with the locally stored user subscription bandwidth parameter, and using one of the smaller values as the target bandwidth parameter;

Or comparing the required bandwidth parameter with the locally stored service support bandwidth parameter, and using one of the smaller values as the target bandwidth parameter;

Or comparing the required bandwidth parameter with a maximum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and using the smaller one as the target bandwidth parameter;

Alternatively, the required bandwidth parameter is compared with the minimum value of the locally stored user subscription bandwidth parameter and the service support bandwidth parameter, and the smaller one is used as the target bandwidth parameter.

Step 503: The execution function entity detects whether the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service.

Specifically, if the bearer corresponding to the video service is a GBR (Guest Guaranteed Bit Rate) bearer, the original bandwidth parameter of the video service is the GBR value of the corresponding bearer of the video service, and the policy and the charging execution function entity detect Whether the target bandwidth parameter is greater than the GBR value of the bearer of the locally stored video service. If the target bandwidth parameter is greater than the GBR value, the GBR value needs to be adjusted, otherwise it is not adjusted.

If the bearer corresponding to the video service is a non-GBR bearer, the original bandwidth parameter of the video service is the GBR_mini value of the corresponding bearer of the video service, and the policy and charging execution function entity detects whether the target bandwidth parameter is greater than the locally stored video. If the target bandwidth parameter is greater than the GBR_mini value, the GBR_mini value needs to be adjusted. Otherwise, the GBR_mini value is not adjusted.

Step 504: If the target bandwidth parameter is greater than the original bandwidth parameter of the locally stored video service, the execution function entity sends a bandwidth adjustment request to the bandwidth control node, where the bandwidth adjustment request includes the target bandwidth parameter, so that the bandwidth control node sends the video service. The current bandwidth parameter is adjusted from the original bandwidth parameter to the target bandwidth parameter;

If the target bandwidth parameter is greater than the GBR value or the GBR_mini value of the bearer of the video service, the performing function entity sends a bandwidth adjustment request carrying the target bandwidth parameter to the bandwidth control node, so that the bandwidth control node carries the video service. The GBR value or the GBR_mini value is reset to the value of the target bandwidth parameter.

The bandwidth control node may be an SGSN in a 3G network (Serving GPRS SUPPORT) The NODE, the GPRS service support node, or the MME (Mobility Management Entity), or the bandwidth control node may be an S-GW (Signaling Gateway) in the LTE network.

Step 505: The function entity receives the service end information of the video service sent by the gateway, and sends a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes the original bandwidth information of the video service, so that the bandwidth control node sends the video service. The current bandwidth parameter is restored to the original bandwidth parameter.

Specifically, when the execution function entity sends the bandwidth adjustment request carrying the target bandwidth parameter to the bandwidth control node, the bandwidth adjustment identifier of the video service may be set to be adjusted locally, and the original GBR of the video service is saved. The value or the GBR_mini value, when the execution function entity receives the service end information of a video service sent by the gateway, first checks whether the bandwidth adjustment identifier of the video service is set to be adjusted, and if yes, sends the video to the bandwidth control node. The bandwidth recovery request of the GBR value or the GBR_mini value is carried in the service, so that the bandwidth control node restores the current GBR value or the GBR_mini value of the video service to the original GBR value or GBR_mini value.

In summary, the bandwidth parameter adjustment method provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter. The problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art is solved, and the network performance is optimized. In addition, the bandwidth parameter adjustment method provided by the embodiment of the present invention, when the video service ends, the video service is The bandwidth parameter is restored to the state before the adjustment, which solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. Corresponding to the bandwidth parameter adjustment method shown in FIG. 1, FIG. 6 is a schematic structural diagram of a gateway according to an embodiment of the present invention. The gateway may include:

The parameter obtaining module 601 is configured to acquire a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the Hypertext Transfer Protocol (HTTP) video service from the server;

The first sending module 602 is configured to send the required bandwidth parameter of the video service obtained by the parameter obtaining module 601 to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter;

The interaction information includes: a first request sent by the terminal to the server for requesting a page or fragment information corresponding to the video service, and a response of the server to the first request sent by the server, and the terminal receives the The response to the first request is followed by any one or more of the second requests sent when the video file corresponding to the video service is requested from the server.

In summary, the gateway provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server, and sends the required bandwidth parameter. The function entity is executed, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and the network performance is optimized. In order to further describe the gateway corresponding to the foregoing FIG. 6, FIG. 7 is a schematic structural diagram of a gateway according to another embodiment of the present invention. The gateway may include:

The parameter obtaining module 701 is configured to acquire a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the Hypertext Transfer Protocol (HTTP) video service from the server;

The first sending module 702 is configured to send the required bandwidth parameter of the video service obtained by the parameter obtaining module 701 to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter;

The interaction information includes: a first request sent by the terminal to the server for requesting a page or fragment information corresponding to the video service, a response sent by the server to the terminal to the first request, and a response of the terminal to the first request to the server Any one or more of the second requests sent when the video file corresponding to the video service is requested.

The parameter obtaining module 701 includes:

The first detecting unit 701a is configured to detect, according to the video identification information corresponding to the video service carried in the first request, whether a video file corresponding to the video service is stored in the local cache.

The first obtaining unit 701b is configured to: if the first detecting unit 701a detects that the video file corresponding to the video service is stored in the local cache, obtain a required bandwidth parameter of the video service corresponding to the video file from the local cache;

The parameter acquisition module 701 further includes:

The second detecting unit 701c is configured to detect whether the response to the first request includes video feature information, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playback duration; The second obtaining unit 701d is configured to: if the second detecting unit 701c detects that the response to the first request includes video feature information, use a ratio of a video file size and a video playing duration as a required bandwidth parameter of the video service, Or, the video bit rate is used as the required bandwidth parameter of the video service.

The parameter acquisition module 701 includes:

The third detecting unit 701e is configured to detect, according to the video identification information corresponding to the video service carried in the second request, whether a video file corresponding to the video service is stored in the local cache.

The third obtaining unit 701f is configured to: if the third detecting unit 701e detects that the video file corresponding to the video service is stored in the local cache, obtain a required bandwidth parameter of the video service corresponding to the video file from the local cache;

The parameter acquisition module 701 further includes:

The fourth detecting unit 701g is configured to detect whether the second feature includes video feature information, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

The fourth obtaining unit 701h is configured to: if the fourth detecting unit 701g detects that the second request includes the video feature information, the ratio of the video file size and the video playing duration is used as the required bandwidth parameter of the video service, or The video bit rate is used as the demand bandwidth parameter of the video service.

The gateway also includes:

The receiving module 703 is configured to: if the first detecting unit 701a detects that the video file corresponding to the video service is not stored in the local cache, and the third detecting unit 701e detects that the video file corresponding to the video service is not stored in the local cache, the receiving module 701 a video file corresponding to the second request;

The parameter acquisition module 701 further includes:

The parsing unit 701i is configured to parse the received video file, and obtain video feature information of the video file. The video feature information includes: video capacity information or a video bit rate, where the video capacity information includes: a video file size and a video playing duration;

The fifth obtaining unit 701j is configured to use the ratio of the video file size and the video playing duration obtained by the parsing unit 701i as the required bandwidth parameter of the video service, or use the video bit rate obtained by the parsing unit 701i as the required bandwidth of the video service. Parameter

The storage unit 701k is configured to store the required bandwidth parameter acquired by the fifth obtaining unit 701j and the video file received by the receiving module 703 in a local cache. The gateway also includes:

The second sending module 704 is configured to: after the first sending module 702 sends the required bandwidth parameter of the video service acquired by the parameter obtaining module 701 to the executing function entity, forward the locally cached video file to the terminal;

a detecting module 705, configured to detect whether the video file is forwarded;

The third sending module 706 is configured to: if the detecting module 705 detects that the video file is forwarded, send the service end information of the video service to the executing function entity, so that the executing function entity restores the bandwidth parameter of the video service according to the service ending information to Adjust the previous state.

In summary, the gateway provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server, and sends the required bandwidth parameter. The function entity is executed, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, thereby achieving the purpose of optimizing network performance; The gateway provided by the embodiment of the present invention, when the video service ends, sends the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the adjustment according to the service end information. The state solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. Corresponding to the bandwidth parameter adjustment method shown in FIG. 1, FIG. 8 is a schematic structural diagram of a gateway according to an embodiment of the present invention. The gateway may include: a processor 801 and a transmitter 802, and a processor 801. The required bandwidth parameter for acquiring a video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server;

The processor 801 is further configured to control the transmitter 802 to send the required bandwidth parameter of the obtained video service to the execution function entity, so that the function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter;

The interaction information includes: a first request sent by the terminal to the server for requesting a page or fragment information corresponding to the video service, a response of the server to the first request sent by the server, and a response of the terminal to the first request, and then requesting a video from the server Any one or more of the second requests sent when the video file corresponding to the service is sent.

In summary, the gateway provided by the embodiment of the present invention obtains the required bandwidth of the video service by using the interaction information between the two when the terminal requests the hypertext transmission protocol HTTP video service from the server. And the required bandwidth parameter is sent to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art. Optimize network performance for the purpose. For a further description of the gateway corresponding to FIG. 8, FIG. 9 is a schematic structural diagram of a gateway according to another embodiment of the present invention, where the gateway may include: a processor 901 and a transmitter 902;

The processor 901 is configured to acquire a required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server;

The processor 901 is further configured to control the transmitter 902 to send the required bandwidth parameter of the obtained video service to the execution function entity, so that the function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter;

The processor 901 is configured to detect, according to the video identification information corresponding to the video service carried in the first request, whether a video file corresponding to the video service is stored in the local cache.

The processor 901 is further configured to: if the video file corresponding to the video service is stored in the local cache, obtain a required bandwidth parameter of the video service corresponding to the video file from the local cache;

The processor 901 is configured to detect whether the video feature information is included in the response to the first request, where the video feature information includes: video capacity information or a video code rate, where the video capacity information includes: a video file size and a video playing duration;

The processor 901 is further configured to: if the video feature information is included in the response to the first request, use a ratio of the video file size d and the video playback duration as a required bandwidth parameter of the video service, or set the video code rate. As a demand bandwidth parameter for video services.

The processor 901 is configured to detect, according to the video identification information corresponding to the video service carried in the second request, whether a video file corresponding to the video service is stored in the local cache.

The processor 901 is further configured to: if the video file corresponding to the video service is stored in the local cache, And obtaining, by the local cache, a required bandwidth parameter of the video service corresponding to the video file, where the video identification information includes: one or two of a uniform resource locator URL and a video file identifier of the video file;

The processor 901 is configured to detect whether the second feature includes video feature information, where the video feature information includes: a video capacity information or a video bit rate, where the video capacity information includes: a video file size and a video playing duration;

The processor 901 is further configured to: if the video feature information is included in the second request, use a ratio of the video file size and the video playing duration as a required bandwidth parameter of the video service, or use the video bit rate as a video service requirement. Bandwidth parameter.

The gateway further includes: a receiver 903 and a memory 904;

The receiver 903 is configured to: if the processor 901 detects that the video file corresponding to the video service is not stored in the local cache, receive the video file corresponding to the second request;

The processor 901 is configured to parse the received video file to obtain video feature information of the video file, where the video feature information includes: a video capacity information or a video bit rate, where the video capacity information includes: a video file size and a video playing duration;

The processor 901 is further configured to use the ratio of the acquired video file size and the video playback duration as the required bandwidth parameter of the video service, or use the video code rate obtained by the parsing unit as the required bandwidth parameter of the video service.

The processor 901 is further configured to store the acquired required bandwidth parameter in the memory 904 corresponding to the received video file.

The processor 901 is configured to: after the transmitter 902 sends the required bandwidth parameter of the acquired video service to the execution function entity, control the transmitter 902 to forward the locally cached video file to the terminal;

The processor 902 is configured to detect whether the video file is forwarded.

The processor 902 is configured to: if it is detected that the video file forwarding is completed, the control transmitter 902 sends the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the pre-adjustment according to the service end information. status.

In summary, the gateway provided by the embodiment of the present invention obtains the required bandwidth parameter of the video service according to the interaction information between the two when the terminal requests the hypertext transfer protocol HTTP video service from the server, and sends the required bandwidth parameter. The function entity is executed, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter, and solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, thereby achieving the purpose of optimizing network performance; Inventive embodiment And providing, by the gateway, the service end information of the video service to the execution function entity, so that the execution function entity restores the bandwidth parameter of the video service to the state before the adjustment according to the service end information, The problem of wasting network bandwidth resources after the end of the video service is solved, and the purpose of saving network bandwidth resources is achieved. Corresponding to the bandwidth parameter adjustment method shown in FIG. 4, please refer to FIG. 10, which is a schematic structural diagram of an execution function entity according to an embodiment of the present invention. The execution function entity may include:

The parameter receiving module 1001 is configured to receive a required bandwidth parameter of the hypertext transfer protocol HTTP video service sent by the gateway;

The target parameter determining module 1002 is configured to determine a target bandwidth parameter of the video service according to the required bandwidth parameter received by the parameter receiving module 1001.

The adjusting module 1003 is configured to adjust a bandwidth parameter of the video service according to the target bandwidth parameter determined by the target parameter determining module 1002.

In summary, the performing functional entity provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter to solve the problem. In the prior art, the problem that the bandwidth cannot be flexibly adjusted according to different video services is achieved, and the purpose of optimizing network performance is achieved. For further description of the execution function entity corresponding to FIG. 10, reference is made to FIG. 11 , which is a schematic structural diagram of an execution function entity according to another embodiment of the present invention. The execution function entity may include:

The parameter receiving module 1101 is configured to receive a required bandwidth parameter of the hypertext transfer protocol HTTP video service sent by the gateway;

The target parameter determining module 1102 is configured to determine a target bandwidth parameter of the video service according to the required bandwidth parameter received by the parameter receiving module 1101.

The adjusting module 1103 is configured to adjust a bandwidth parameter of the video service according to the target bandwidth parameter determined by the target parameter determining module 1102.

The target parameter determination module 1102 includes:

The first determining unit 1102a is configured to determine, according to the required bandwidth parameter, a target bandwidth parameter of the video service according to the predetermined policy;

The sending unit 1102b is configured to forward the required bandwidth parameter to the rule function entity, so that the rule function The energy entity determines the target bandwidth parameter of the video service according to the required bandwidth parameter, and the receiving unit 1102c is configured to receive the target bandwidth parameter of the video service returned by the rule function entity, where the predetermined policy includes:

The adjustment module 1103 includes:

The detecting unit 1103a is configured to detect whether the target bandwidth parameter determined by the target parameter determining module is greater than an original bandwidth parameter of the locally stored video service;

The requesting unit 1103b is configured to: if the detecting unit 1103a detects that the target bandwidth parameter is greater than the original bandwidth parameter of the locally stored video service, send a bandwidth adjustment request to the bandwidth control node, where the bandwidth adjustment request includes the target bandwidth parameter, so that the bandwidth control is performed. The node adjusts the current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

The executive function entity also includes:

The end information receiving module 1104 is configured to receive service end information of the video service sent by the gateway, and the requesting module 1105 is configured to send a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes the original bandwidth information of the video service, so that the bandwidth is used. The control node restores the current bandwidth parameter of the video service to the original bandwidth parameter.

In summary, the performing functional entity provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter to solve the problem. In the prior art, the problem that the bandwidth cannot be flexibly adjusted according to different video services is achieved, and the network performance is optimized. In addition, the execution function entity provided by the embodiment of the present invention also uses the bandwidth of the video service when the video service ends. The parameter is restored to the state before the adjustment, which solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. Corresponding to the bandwidth parameter adjustment method shown in FIG. 4, please refer to FIG. 12, which is a schematic structural diagram of an execution function entity according to an embodiment of the present invention. The execution function entity may include: a receiver 1201 and a processor 1202;

a receiver 1201, configured to receive a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway;

The processor 1202 is configured to determine a target bandwidth parameter of the video service according to the required bandwidth parameter received by the receiver 1201.

The processor 1202 is configured to adjust a bandwidth parameter of the video service according to the determined target bandwidth parameter. In summary, the performing functional entity provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter to solve the problem. In the prior art, the problem that the bandwidth cannot be flexibly adjusted according to different video services is achieved, and the purpose of optimizing network performance is achieved. For further description of the execution function entity corresponding to FIG. 12, reference is made to FIG. 13 , which is a schematic structural diagram of an execution function entity according to another embodiment of the present invention. The execution function entity may include: a receiver 1301 and processing. 1302;

a receiver 1301, configured to receive a required bandwidth parameter of a hypertext transfer protocol HTTP video service sent by a gateway;

The processor 1302 is configured to determine a target bandwidth parameter of the video service according to the required bandwidth parameter received by the receiver 1301.

The processor 1302 is configured to adjust a bandwidth parameter of the video service according to the determined target bandwidth parameter. The executive function entity further includes: a transmitter 1303;

The processor 1302 is configured to determine, according to the required bandwidth parameter, a target bandwidth parameter of the video service according to a predetermined policy;

The processor 1302 is further configured to control the transmitter 1303 to forward the required bandwidth parameter to the rule function entity, so that the rule function entity determines the target bandwidth parameter of the video service according to the required bandwidth parameter and the predetermined policy;

The receiver 1301 is configured to receive a target bandwidth parameter of the video service returned by the rule function entity, where the predetermined policy includes:

Comparing the required bandwidth parameter with the locally stored user subscription bandwidth parameter, and using the smaller one as the target bandwidth parameter; Or comparing the required bandwidth parameter with the locally stored service support bandwidth parameter, and using the smaller one as the target bandwidth parameter;

The processor 1302 is configured to detect whether the target bandwidth parameter is greater than an original bandwidth parameter of the locally stored video service.

The processor 1302 is configured to: if the target bandwidth parameter is greater than the original bandwidth parameter of the locally stored video service, the control transmitter 1303 sends a bandwidth adjustment request to the bandwidth control node, where the bandwidth adjustment request includes the target bandwidth parameter, so that the bandwidth is used. The control node adjusts the current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

The receiver 1301 is further configured to receive the service end information of the video service sent by the gateway. The processor 1302 is configured to control the transmitter 1303 to send a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request includes the original bandwidth information of the video service. So that the bandwidth control node restores the current bandwidth parameters of the video service to the original bandwidth parameters.

In summary, the performing functional entity provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter to solve the problem. In the prior art, the problem that the bandwidth cannot be flexibly adjusted according to different video services is achieved, and the network performance is optimized. In addition, the execution function entity provided by the embodiment of the present invention also uses the bandwidth of the video service when the video service ends. The parameter is restored to the state before the adjustment, which solves the problem of waste of network bandwidth resources after the end of the video service, and achieves the purpose of saving network bandwidth resources. Referring to FIG. 14, a system configuration diagram of a bandwidth parameter adjustment system according to an embodiment of the present invention is shown. The bandwidth parameter adjustment system may include a gateway as shown in FIG. 7 and a function entity as shown in FIG.

In summary, the bandwidth parameter adjustment system provided by the embodiment of the present invention determines the target bandwidth parameter of the video service according to the required bandwidth parameter of the video service sent by the gateway, and adjusts the bandwidth parameter of the video service according to the target bandwidth parameter. The invention solves the problem that the bandwidth cannot be flexibly adjusted according to different video services in the prior art, and achieves the purpose of optimizing the network performance. In addition, the embodiment of the present invention provides The bandwidth parameter adjustment system restores the bandwidth parameter of the video service to the state before the adjustment at the end of the video service, and solves the problem that the network bandwidth resource is wasted after the end of the video service, thereby achieving the purpose of saving network bandwidth resources. A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

claims

1. A bandwidth parameter adjustment method, characterized in that the method includes:

Obtain the required bandwidth parameters of the video service based on the interaction information between the terminal and the server when requesting Hypertext Transfer Protocol HTTP video service;

Send the obtained required bandwidth parameter of the video service to the execution function entity, so that the execution function entity adjusts the bandwidth parameter of the video service according to the required bandwidth parameter;

The interactive information includes: a first request sent when the terminal requests the page or fragmentation information corresponding to the video service from the server, a response to the first request sent by the server to the terminal, Any one or more of the second requests sent when the terminal requests the video file corresponding to the video service from the server after receiving the response to the first request.

2. The method according to claim 1, characterized in that the interaction information includes: the first request, the first request carries video identification information corresponding to the video service;

The required bandwidth parameters of the video service are obtained based on the interactive information between the terminal and the server when the terminal requests the Hypertext Transfer Protocol HTTP video service, including:

Detect whether the video file corresponding to the video service is stored in the local cache according to the video identification information corresponding to the video service carried in the first request;

If it is detected that the video file corresponding to the video service is stored in the local cache, the required bandwidth parameter of the video service stored corresponding to the video file is obtained from the local cache;

Wherein, the video identification information includes: one or both of the uniform resource locator URL of the video file and the video file identification.

3. The method according to claim 1, characterized in that the interactive information includes: the response to the first request;

Detect whether the response to the first request contains video feature information. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and video playback duration;

If it is detected that the response to the first request contains video feature information, then the video The ratio of the video file size and the video playback duration is used as the required bandwidth parameter of the video service, or the video bit rate is used as the required bandwidth parameter of the video service.

4. The method according to claim 1, characterized in that, the interaction information includes: the second request, the second request carries video identification information corresponding to the video service;

Detect whether the video file corresponding to the video service is stored in the local cache according to the video identification information corresponding to the video service carried in the second request;

Wherein, the video identification information includes: one or both of the uniform resource locator URL of the video file and the video file identification;

or,

Detect whether the second request contains video feature information. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and video playback duration;

If it is detected that the second request contains video feature information, the ratio of the video file size to the video playback duration is used as the required bandwidth parameter of the video service, or the video bit rate is used as the video The required bandwidth parameters of the business.

5. The method according to claim 2 or 4, characterized in that, if it is detected that the video file corresponding to the video service is not stored in the local cache, the method further includes:

Receive the video file corresponding to the second request;

Analyze the received video file and obtain the video feature information of the video file. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and video playback duration;

Use the ratio of the video file size to the video playback duration as the required bandwidth parameter of the video service, or use the video bit rate as the required bandwidth parameter of the video service;

The required bandwidth parameter is stored in a local cache corresponding to the video file.

6. The method according to claim 5, characterized in that, after sending the obtained required bandwidth parameters of the video service to the execution function entity, the method further includes:

Forward the locally cached video file to the terminal;

Detect whether the forwarding of the video file is completed. If it is detected that the forwarding of the video file is completed, the service end information of the video service is sent to the execution function entity, so that the execution function entity transfers the video service according to the service end information. The bandwidth parameters of the video service are restored to the state before adjustment.

7. A bandwidth parameter adjustment method, characterized in that the method includes:

Receive the required bandwidth parameters of the Hypertext Transfer Protocol HTTP video service sent by the gateway; determine the target bandwidth parameters of the video service according to the required bandwidth parameters;

Adjust the bandwidth parameter of the video service according to the determined target bandwidth parameter.

8. The method according to claim 7, wherein the determining the target bandwidth parameter of the video service according to the required bandwidth parameter includes:

Determine the target bandwidth parameters of the video service according to the required bandwidth parameters in combination with a predetermined strategy; or,

Forward the required bandwidth parameter to the rule function entity, so that the rule function entity determines the target bandwidth parameter of the video service according to the required bandwidth parameter in combination with a predetermined policy;

Receive the target bandwidth parameter of the video service returned by the rule function entity;

Wherein, the predetermined strategy includes:

Compare the required bandwidth parameter with the locally stored user subscription bandwidth parameter, and use the smaller one as the target bandwidth parameter;

Or, compare the required bandwidth parameter with a locally stored service support bandwidth parameter, and use the smaller one as the target bandwidth parameter;

Or, compare the required bandwidth parameter with the maximum value of locally stored user subscription bandwidth parameters and service support bandwidth parameters, and use the smaller one as the target bandwidth parameter; or, use the required bandwidth parameter The parameter is compared with the minimum value among the locally stored user subscription bandwidth parameters and service support bandwidth parameters, and the smaller one is used as the target bandwidth parameter.

9. The method according to claim 8, wherein the adjusting the bandwidth parameter of the video service according to the target bandwidth parameter includes: Detect whether the target bandwidth parameter is greater than the locally stored original bandwidth parameter of the video service;

If the target bandwidth parameter is greater than the locally stored original bandwidth parameter of the video service, a bandwidth adjustment request is sent to the bandwidth control node, and the bandwidth adjustment request includes the target bandwidth parameter, so that the bandwidth control node Adjust the current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

10. The method according to claim 9, characterized in that, after sending the bandwidth adjustment request to the bandwidth control node, the method further includes:

Receive the service end information of the video service sent by the gateway;

Send a bandwidth restoration request to the bandwidth control node, where the bandwidth restoration request contains the original bandwidth information of the video service, so that the bandwidth control node restores the current bandwidth parameters of the video service to the original bandwidth parameters.

11. A gateway, characterized in that the gateway includes:

A parameter acquisition module, configured to acquire the required bandwidth parameters of the video service based on the interactive information between the terminal and the server when the terminal requests the Hypertext Transfer Protocol HTTP video service;

The first sending module is configured to send the required bandwidth parameters of the video service obtained by the parameter acquisition module to the execution function entity, so that the execution function entity adjusts the bandwidth parameters of the video service according to the required bandwidth parameters;

12. The gateway according to claim 11, wherein the parameter acquisition module includes: a first detection unit configured to detect local cache according to the video identification information corresponding to the video service carried in the first request. Whether the video file corresponding to the video service is stored in;

The first acquisition unit is configured to acquire the demand for the video service stored corresponding to the video file from the local cache if the first detection unit detects that the video file corresponding to the video service is stored in the local cache. bandwidth parameters; Wherein, the video identification information includes: one or both of a uniform resource locator URL of the video file and a video file identification.

13. The gateway according to claim 11, wherein the parameter acquisition module includes: a second detection unit configured to detect whether the response to the first request contains video feature information, Video feature information includes: video capacity information or video bit rate, and the video capacity information includes: video file size and video playback duration;

The second acquisition unit is configured to, if the second detection unit detects that the response to the first request contains video feature information, use the ratio of the video file size to the video playback duration as the video The required bandwidth parameter of the service, or the video bit rate is used as the required bandwidth parameter of the video service.

14. The gateway according to claim 11, characterized in that the parameter acquisition module includes: a third detection unit, configured to detect local cache according to the video identification information corresponding to the video service carried in the second request Whether the video file corresponding to the video service is stored in;

The third acquisition unit is configured to acquire the demand for the video service stored corresponding to the video file from the local cache if the third detection unit detects that the video file corresponding to the video service is stored in the local cache. bandwidth parameters;

The parameter acquisition module also includes:

The fourth detection unit is used to detect whether the second request contains video feature information. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and video playback duration. ;

The fourth acquisition unit is configured to use the ratio of the video file size to the video playback duration as the required bandwidth parameter of the video service if the fourth detection unit detects that the second request contains video feature information. , or, use the video bit rate as the required bandwidth parameter of the video service.

15. The gateway according to claim 12 or 14, characterized in that, the gateway further includes: a receiving module, configured to: if the first detection unit detects that the video corresponding to the video service is not stored in the local cache, file, and the third detection unit detects that the view is not stored in the local cache. video file corresponding to the video service, then receive the video file corresponding to the second request;

The parameter acquisition module also includes:

An analysis unit, configured to analyze the received video file and obtain the video feature information of the video file. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and Video playback duration;

The fifth acquisition unit is configured to use the ratio of the video file size and video playback time acquired by the analysis unit as the required bandwidth parameter of the video service, or use the video code rate acquired by the analysis unit as The required bandwidth parameters of the video service;

A storage unit, configured to store the required bandwidth parameter obtained by the fifth obtaining unit and the video file received by the receiving module in a local cache.

16. The gateway according to claim 15, characterized in that, the gateway further includes: a second sending module, configured to use the first sending module to obtain the required bandwidth of the video service obtained by the parameter acquisition module. After the parameters are sent to the execution function entity, the locally cached video file is forwarded to the terminal;

A detection module, used to detect whether the video file is forwarded;

The third sending module is configured to send the service end information of the video service to the execution function entity if the detection module detects that the video file forwarding is completed, so that the execution function entity can execute the operation according to the service end information. Restore the bandwidth parameters of the video service to the state before adjustment.

17. A gateway, characterized in that the gateway includes: a processor and a transmitter;

The processor is configured to obtain the required bandwidth parameters of the video service based on the interaction information between the terminal and the server when the terminal requests the Hypertext Transfer Protocol HTTP video service;

The processor is also configured to control the transmitter to send the obtained required bandwidth parameters of the video service to the execution function entity, so that the execution function entity adjusts the bandwidth parameters of the video service according to the required bandwidth parameters. ;

18. The gateway according to claim 17, characterized in that,

The processor is configured to detect whether the video file corresponding to the video service is stored in the local cache according to the video identification information corresponding to the video service carried in the first request;

The processor is further configured to, if it is detected that a video file corresponding to the video service is stored in the local cache, obtain the required bandwidth parameter of the video service stored corresponding to the video file from the local cache;

19. The gateway according to claim 17, characterized in that,

The processor is configured to detect whether the response to the first request contains video feature information. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file. Size and video playback duration;

The processor is further configured to, if it is detected that the response to the first request contains video feature information, use the ratio of the video file size to the video playback duration as the required bandwidth parameter of the video service. , or, use the video bit rate as the required bandwidth parameter of the video service.

20. The gateway according to claim 17, characterized in that,

The processor is configured to detect whether the video file corresponding to the video service is stored in the local cache according to the video identification information corresponding to the video service carried in the second request;

The processor is configured to detect whether the second request contains video feature information. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file size and video playback duration. ;

The processor is further configured to, if it is detected that the second request contains video feature information, use the ratio of the video file size and the video playback duration as the required bandwidth parameter of the video service, or, use the The video bit rate is used as the required bandwidth parameter of the video service.

21. The gateway according to claim 18 or 20, characterized in that the gateway further includes: a receiver and a memory;

The receiver is configured to receive the video file corresponding to the second request if the processor detects that the video file corresponding to the video service is not stored in the local cache;

The processor is configured to parse the received video file and obtain video feature information of the video file. The video feature information includes: video capacity information or video bit rate. The video capacity information includes: video file Size and video playback duration;

The processor is further configured to use the obtained ratio of the video file size and the video playback duration as the required bandwidth parameter of the video service, or use the video code rate obtained by the parsing unit as the video The required bandwidth parameters of the business;

The processor is also configured to store the obtained required bandwidth parameter in correspondence with the received video file in the memory.

22. The gateway according to claim 21, characterized in that,

The processor is configured to control the transmitter to forward the locally cached video file to the terminal after the transmitter sends the obtained required bandwidth parameter of the video service to the execution function entity;

The processor is used to detect whether the video file is forwarded;

The processor is configured to, if it detects that the video file forwarding is completed, control the transmitter to send the service end information of the video service to the execution function entity, so that the execution function entity ends the service according to the The information restores the bandwidth parameters of the video service to the state before adjustment.

23. An execution function entity, characterized in that, the execution function entity includes:

Parameter receiving module, used to receive the required bandwidth parameters of the Hypertext Transfer Protocol HTTP video service sent by the gateway;

A target parameter determination module, configured to determine the target bandwidth parameter of the video service according to the required bandwidth parameter received by the parameter receiving module;

An adjustment module, configured to adjust the bandwidth parameter of the video service according to the target bandwidth parameter determined by the target parameter determination module.

24. The execution function entity according to claim 23, characterized in that the target parameter determination module includes:

The first determination unit is configured to determine the target bandwidth parameter of the video service according to the required bandwidth parameter and in combination with a predetermined strategy;

A sending unit, configured to forward the required bandwidth parameter to the rule function entity, so that the rule function entity determines the target bandwidth parameter of the video service based on the required bandwidth parameter and in combination with a predetermined policy;

A receiving unit, configured to receive the target bandwidth parameter of the video service returned by the rule function entity;

Wherein, the predetermined strategy includes:

25. The execution function entity according to claim 24, characterized in that the adjustment module includes:

A detection unit, configured to detect whether the target bandwidth parameter determined by the target parameter determination module is greater than the locally stored original bandwidth parameter of the video service;

A request unit, configured to send a bandwidth adjustment request to the bandwidth control node if the detection unit detects that the target bandwidth parameter is greater than the locally stored original bandwidth parameter of the video service, and the bandwidth adjustment request contains the The target bandwidth parameter is configured so that the bandwidth control node adjusts the current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

26. The execution function entity according to claim 25, characterized in that the execution function entity further includes:

An end information receiving module, configured to receive a service end information of the video service sent by the gateway. interest;

A request module, configured to send a bandwidth recovery request to the bandwidth control node, where the bandwidth recovery request contains the original bandwidth information of the video service, so that the bandwidth control node can restore the current bandwidth parameters of the video service. to the original bandwidth parameters.

27. An execution function entity, characterized in that the execution function entity includes: a receiver and a processor;

The receiver is used to receive the bandwidth parameters required by the Hypertext Transfer Protocol HTTP video service sent by the gateway;

The processor is configured to determine the target bandwidth parameter of the video service according to the required bandwidth parameter received by the receiver;

The processor is configured to adjust the bandwidth parameter of the video service according to the determined target bandwidth parameter.

28. The execution function entity according to claim 27, characterized in that the execution function entity further includes: a transmitter;

The processor is configured to determine the target bandwidth parameter of the video service according to the required bandwidth parameter and in combination with a predetermined strategy;

The processor is also configured to control the transmitter to forward the required bandwidth parameter to a rule function entity, so that the rule function entity determines the target bandwidth parameter of the video service based on the required bandwidth parameter and a predetermined policy. ;

The receiver is configured to receive the target bandwidth parameter of the video service returned by the rule function entity;

Wherein, the predetermined strategy includes:

Or, compare the required bandwidth parameter with the maximum value of locally stored user subscription bandwidth parameters and service support bandwidth parameters, and use the smaller one as the target bandwidth parameter; or, use the required bandwidth parameter Parameters and locally stored user subscription bandwidth parameters and service support bands The minimum value among the wide parameters is compared, and the smaller one is used as the target bandwidth parameter.

29. The execution function entity according to claim 28, characterized in that,

The processor is configured to detect whether the target bandwidth parameter is greater than the locally stored original bandwidth parameter of the video service;

The processor is configured to, if it is detected that the target bandwidth parameter is greater than the locally stored original bandwidth parameter of the video service, control the transmitter to send a bandwidth adjustment request to the bandwidth control node, where in the bandwidth adjustment request The target bandwidth parameter is included so that the bandwidth control node adjusts the current bandwidth parameter of the video service from the original bandwidth parameter to the target bandwidth parameter.

30. The execution function entity according to claim 29, characterized in that,

The receiver is also used to receive the service end information of the video service sent by the gateway; the processor is used to control the transmitter to send a bandwidth recovery request to the bandwidth control node, and the bandwidth recovery The request includes the original bandwidth information of the video service, so that the bandwidth control node restores the current bandwidth parameter of the video service to the original bandwidth parameter.

31. A bandwidth parameter adjustment system, characterized in that the system includes:

The gateway as described in any one of claims 11 to 16 and the execution function entity as described in any one of claims 23 to 26.