A method, apparatus and computer program product for utilizing network coding for multi-resolution multicast is presented. A network source partitions source content into a base layer and one or more refinement layers. The network source receives a respective one or more push-back messages from one or more network destination receivers, the push-back messages identifying the one or more refinement layers suited for each one of the one or more network destination receivers. The network source computes a network code involving the base layer and the one or more refinement layers for at least one of the one or more network destination receivers, and transmits the network code to the one or more network destination receivers in accordance with the push-back messages.

A data packet transmission method—that includes: obtaining, by a terminal, N application programs that are running; and if the N application programs include an application program including a low-latency service; determining whether an unlicensed frequency band is in a congestion state; and instructing a network device to schedule a data packet of the terminal to a licensed frequency band for transmission when the unlicensed frequency band is in a congestion state. When determining that the N running application programs include the application program including the low-latency service, the terminal may instruct the network device to schedule the data packet of the terminal to the licensed frequency band for transmission, so as to transmit a data packet of the low-latency service by using the licensed frequency band. Resources in the licensed frequency band are centrally scheduled by the network device, instead of being used through contention.

In various embodiments, an electronic device comprising a communication circuit, a processor, and a memory is disclosed. The memory may store instructions that, when executed, cause the processor to transmit, to a network, a first session initiation protocol (SIP) invite message including at least one dummy value by using the communication circuit, obtain channel state information by using the communication circuit, determine a codec for performing a packet based call on the basis of channel state information, and transmit, to the network, a second SIP invite message including information of the determined codec by using the communication circuit. Various other embodiments are also possible which are known from the specification.

A method, computer program, and computer system is provided for multi-instance Network-Based Media Processing (NBMP) function execution. A function call corresponding to an NBMP request is received. A function is retrieved from among a function group having a function descriptor, the retrieved function corresponding to the received function call. One or more instances of the retrieved function are executed.

A method, computer program, and computer system is provided for multi-instance Network-Based Media Processing (NBMP) function execution. A function call corresponding to an NBMP request is received. A function is retrieved from among a function group having a function descriptor, the retrieved function corresponding to the received function call. One or more instances of the retrieved function are executed.

A method and respective system for determining quality of experience parameters of an encrypted video stream received at a client device is provided. The method comprises extracting, from one or more encrypted video streams sent over a network from a content server to a plurality of client devices, a first instance of at least one stream-related feature. A first instance of at least one quality-related label of a plurality of quality-related labels is determined based on applying a trained classifier to the first instance of the at least one stream-related feature, wherein each of the plurality of quality-related labels corresponds to a respective experience parameter of the quality of experience parameters of the encrypted video stream received at the client device.

A method and respective system for determining quality of experience parameters of an encrypted video stream received at a client device is provided. The method comprises extracting, from one or more encrypted video streams sent over a network from a content server to a plurality of client devices, a first instance of at least one stream-related feature. A first instance of at least one quality-related label of a plurality of quality-related labels is determined based on applying a trained classifier to the first instance of the at least one stream-related feature, wherein each of the plurality of quality-related labels corresponds to a respective experience parameter of the quality of experience parameters of the encrypted video stream received at the client device.

A display device includes a display, a network interface for connection with a access point, an external device interface configured to receive image data from an external device, and a processor configured to acquire information on the external device connected to the external device interface, receive an information set of a plurality of search devices connected through an Internet network from the access point, and display a test screen for checking connection of the external device on the display when any one of the plurality of search devices matches the external device based on the information on the external device and the information set.

A display device includes a display, a network interface for connection with a access point, an external device interface configured to receive image data from an external device, and a processor configured to acquire information on the external device connected to the external device interface, receive an information set of a plurality of search devices connected through an Internet network from the access point, and display a test screen for checking connection of the external device on the display when any one of the plurality of search devices matches the external device based on the information on the external device and the information set.

A media content processing management method according to an embodiment of the disclosure includes: obtaining, from a network based media processing (NBMP) source, workflow information for media content processing; identifying whether to use a feedback task, based on the workflow information, obtaining, from a function repository, function information about a function of the feedback task or about a function of at least one media task for the media content processing, based on the workflow information, obtaining task information based on at least one of the workflow information and the function information, delivering the task information to each of tasks, obtaining client feedback information, and updating the task information based on the client feedback information, wherein the task information includes at least one of input information, output information, configuration information, or connection information of each of the tasks, and the connection information includes connection information of a media processing task and the feedback task, the media processing task using client assistance information from among the at least one media task.