摘要:
A method for controlling the transmission of a media stream comprising a plurality of consecutive stream elements Is described. The method comprises the step of obtaining (32) a media description of the media stream, the media description indicating an initial element of the stream elements. A request for the initial stream element is sent (34) and a session control procedure is initiated (36) for a session. The media stream is associated (38) with the session in the session control procedure. The transmission of a subsequent element of the stream elements is controlled in accordance with a control rule of the session. Devices and further methods embodying the invention are also described.
摘要:
The present disclosure relates to a technique for scheduling resource reservations of services in a service providing network. A method embodiment comprises the steps of receiving a resource reservation request indicating a preferred time period for delivery of a requested service available in the network; and scheduling resource reservation of the requested service based on statistical information related to resource utilizations or reservations of one or more services available in the network and the preferred time period for delivery of the requested service.
摘要:
A technique is disclosed for controlling data packet transmissions from a server to a client having a client buffer in accordance with a waiting mode and a dynamic mode. The waiting mode is performed before packets containing data encoded subject to a current bit rate have reached the client buffer; the dynamic mode is performed otherwise. In the waiting mode, down-switches to lower bit rates are allowed but up-switches to higher bit rates are disabled. In the dynamic mode, up-switches and down-switches are both allowed, with adjustments in the bit rate of packets controlled based, in part, on the amount of data contained within the client buffer when packets containing data encoded subject to the current bit rate first reached the client buffer. The two modes help avoid unnecessary rate switches.
摘要:
A technique is disclosed for controlling data packet transmissions from a server to a client having a client buffer in accordance with a waiting mode and a dynamic mode. The waiting mode is performed before packets containing data encoded subject to a current bit rate have reached the client buffer; the dynamic mode is performed otherwise. In the waiting mode, down-switches to lower bit rates are allowed but up-switches to higher bit rates are disabled. In the dynamic mode, up-switches and down-switches are both allowed, with adjustments in the bit rate of packets controlled based, in part, on the amount of data contained within the client buffer when packets containing data encoded subject to the current bit rate first reached the client buffer. The two modes help avoid unnecessary rate switches.
摘要:
The present invention relates to a client entity being capable of communicating over a communication network. The client entity comprises a receiver (101) for receiving scheduled data and for receiving a quality indicator indicating a quality of the scheduled data, a quality monitor (103) for monitoring the quality of the scheduled data upon the basis of the quality indicator, a processor (105) for providing a data replacement request if the quality of the scheduled data fails to meet a quality requirement, and a transmitter (107) for transmitting the data replacement request towards the communication network to request replacement data representing another version of the scheduled data.
摘要:
A technique for determining usage of encrypted media content is described. A method implementation of this technique comprises the steps of obtaining a short-term key for decrypting the media content, obtaining a long-term key for decrypting the short-term key, decrypting the short-term key based on the long-term key, decrypting the media content based on the decrypted short-term key, and logging a parameter relating to the short-term key as a basis for determining media content usage. The short-term key may be a Traffic Encryption Key, TEK, and the long-term key may be a Service Encryption Key, SEK.
摘要:
This invention relates to a method for streaming a media file to an end user using a hypertext transfer protocol HTTP, wherein a proxy monitors HTTP messages for detecting a streaming of the media file using HTTP. When a HTTP message is received, the proxy determines bearer parameters required for streaming the media file and determines whether a bearer meeting an appropriate service quality is necessary. If necessary, the proxy triggers a provision of the bearer meeting with said appropriate service quality.