Strategic control method and device of application
A technology for policy control and application services, applied in the field of communication, can solve problems such as inability to meet policy control of data application services such as QoS and billing, inability of PCRF to make policy decisions, and inability to deliver data application service information, etc.
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Embodiment 1
[0169] Embodiment 1: Song-on-Demand
[0170] Song-on-demand usually uses RTSP as the flow control protocol, and data application service data flow is transmitted in RTP mode. Through RTSP signaling, the user terminal can implement operations such as start, pause, and termination of on-demand broadcasting. The following table shows an example of RTSP signaling for the on-demand process:
[0171]
[0172]
[0173] Among them, process 1 shows that the user terminal requests the media server to extract the service flow description, and the media server returns information according to the request; process 2 shows that the user terminal and the media server respectively set the port numbers used for transmitting the service stream; process 3 shows that the user terminal starts The process of ordering songs; process 4 indicates that the user terminal requests to suspend the on-demand service; process 5 indicates that the user terminal requests to terminate the on-...
Embodiment 2
[0220] Embodiment 2: FTP download.
[0221] FTP download is the most commonly used data application service. When users perform FTP services, they only need to negotiate the transmission port number, and there is no SDP negotiation process. In addition, because the service provider or network operator for the FTP download service adopts a web-based protocol, it is considered that when the data application service information is delivered in this embodiment, XML description is used to deliver the information, and the HTTP protocol is used to transfer the information.
[0222] The FTP download service carried out on the telecommunications network can be provided by Sohu (ASP1) and NetEase (ASP2), but there are differences in the charging methods adopted by ASP1 and ASP2 for providing FTP downloads. The billing method is based on the downloaded content. Therefore, when implementing policy control on the FTP download service, the issued application service information should...
Embodiment 3
[0247] Embodiment three: FTP download. see Figure 10 shown, including the following steps:
[0248] 1) The FTP application negotiation is completed between the client and ASP1;
[0249] 2) ASP1 sends the application service information corresponding to the download service to PCRF, and the sent information includes the ASP-Identifier, indicating that the FTP download service is provided by ASP1;
[0250] 3) PCRF receives the application service information issued by ASP1, and ASP1 provides FTP download service according to ASP-Identifier perception, and combines application service information and other information (operator policy, user subscription information, access network type) to formulate the service Corresponding policies, such as allocating QoS for the FTP download service provided by ASP1, formulating billing policies, gate control policies, etc.;
[0251] 4) PCRF sends the policy to PCEF for execution;
[0252] 5) According to the policy, the PCEF ...
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