Techniques for modular multimedia broadcast and multicast service (MBMS) delivery

    公开(公告)号:US11297467B2

    公开(公告)日:2022-04-05

    申请号:US16425498

    申请日:2019-05-29

    Abstract: Aspects of the present disclosure provide a system, method, and apparatus for providing multimedia broadcast and multicast service (MBMS) operations in a wireless communication system. In some aspects of the present disclosure, the system, method and apparatus may provide flexibility for an application server to select one or more MBMS service delivery functionalities supported by a network device for transmission of multimedia content to a mobile device. The MBMS service delivery functionalities selected by the application server may be a subset of a plurality of MBMS service delivery functionalities supported by the network device.

    Time signaling for media streaming
    15.
    发明授权

    公开(公告)号:US10986402B2

    公开(公告)日:2021-04-20

    申请号:US16505598

    申请日:2019-07-08

    Abstract: Systems and techniques are described for processing media content, such as samples of sparse media content whose sample durations can be unknown at the time of decoding the samples, include obtaining, at a current time instance, a current fragment comprising at least a current time component. From the current time component, a modified duration is obtained for at least one media sample, the modified duration indicating a time duration by which a presentation of a previous media sample of a previous fragment is to be extended or reduced in relation to the current time instance. The at least one media sample is presented for a time duration based on the modified duration.

    RANDOM ACCESS AT RESYNC POINTS OF DASH SEGMENTS

    公开(公告)号:US20210105542A1

    公开(公告)日:2021-04-08

    申请号:US17061152

    申请日:2020-10-01

    Abstract: A device for retrieving media includes a memory configured to store media data of a media presentation; and one or more processors implemented in circuitry and configured to: retrieve a manifest file for a media presentation indicating that container parsing of media data of a bitstream can be started at a resync point of a segment of a representation of the media presentation, the resync point being at a position other than a start of the segment and representing a point at which the container parsing of the media data of the bitstream can be started; use the manifest file to form a request to retrieve the media data of the representation starting at the resync point; send the request to initiate retrieval of the media data of the media presentation starting at the resync point; and present the retrieved media data.

    REPAIR MECHANISM FOR ADAPTIVE BIT RATE MULTICAST

    公开(公告)号:US20210099371A1

    公开(公告)日:2021-04-01

    申请号:US17039442

    申请日:2020-09-30

    Abstract: An example device for retrieving media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: receive data indicating a packet loss signaling mechanism, the packet loss signaling mechanism comprising at least one of that segments are sent in chunks, that transport object identifiers (TOIs) are sequential, or that a last packet of an object assigned to a TOI has a specific flag set in a header of the last packet, a base URL, a maximum latency, or a synchronization point in a file delivery header; detect loss of a packet using the at least one of the packet loss signaling mechanisms, the lost packet including missing media data; generate a byte range request for the missing media data using information of the file delivery header; and deliver a proper media object to a media application.

    Transporting coded audio data
    19.
    发明授权

    公开(公告)号:US10693936B2

    公开(公告)日:2020-06-23

    申请号:US15246370

    申请日:2016-08-24

    Abstract: In one example, a device for retrieving audio data includes one or more processors configured to receive availability data representative of a plurality of available adaptation sets, the available adaptation sets including a scene-based audio adaptation set and one or more object-based audio adaptation sets, receive selection data identifying which of the scene-based audio adaptation set and the one or more object-based audio adaptation sets are to be retrieved, and provide instruction data to a streaming client to cause the streaming client to retrieve data for each of the adaptation sets identified by the selection data, and a memory configured to store the retrieved data for the audio adaptation sets.

    File format based streaming with dash formats based on LCT

    公开(公告)号:US10454985B2

    公开(公告)日:2019-10-22

    申请号:US15058963

    申请日:2016-03-02

    Abstract: In one example, a device includes one or more media decoders configured to decode media data, a network interface configured to receive a layered coding transport (LCT) Session Instance Description (LSID), the LSID including information representing a plurality of LCT sessions, each of the LCT sessions including data of a respective one of a plurality of representations of a DASH media presentation and data of one or more of the LCT sessions, and a processor configured to initiate consumption of one or more of the representations of the DASH media presentation using the LSID and without using a manifest file for the DASH media presentation, wherein to initiate consumption, the processor is configured to receive, via the network interface, packets of the LCT sessions including portions of data of the one or more of the representations; and provide data of the packets to the one or more media decoders.

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