H04N21/2383

BROADBAND DIGITAL ACCESS (BDA) ARCHITECTURE FOR EXTENDING DIGITAL BROADBAND COMMUNICATIONS IN AN HFC NETWORK
20230118298 · 2023-04-20 ·

A broadband digital access (BDA) architecture includes a BDA hub device in a headend/hub and one or more BDA node modules in one or more HFC nodes to enable digital communications between the headend/hub and the HFC node(s) in a CATV/HFC network. The BDA hub device and the BDA node module(s) are connected by one or more downstream optical fibers and one or more upstream optical fibers to enable digital optical communications therebetween. The BDA hub device provides an analog RF interface with equipment in the headend/hub and the BDA node module provides an analog RF interface with subscriber locations via one or more coaxial cables.

Apparatus and method for media streaming

A system that incorporates teachings of the subject disclosure may include, for example, dividing a media content item into a plurality of media content segments, at each media content segment of the plurality of media content segments, applying motion estimation between at least two video frames of the media content segment to determine a content weight for the media content segment, determining a bit rate for the media content segment according to the determined content weight for the media content segment, and encoding the media content segment at the determined bit rates to generate a data stream for the media content segment, whereby a plurality of data streams for the plurality of media content segments of the media content are generated, and transmitting the plurality of data streams for the plurality of media content segments of the media content to the one or more media devices. Other embodiments are disclosed.

Apparatus and method for media streaming

A system that incorporates teachings of the subject disclosure may include, for example, dividing a media content item into a plurality of media content segments, at each media content segment of the plurality of media content segments, applying motion estimation between at least two video frames of the media content segment to determine a content weight for the media content segment, determining a bit rate for the media content segment according to the determined content weight for the media content segment, and encoding the media content segment at the determined bit rates to generate a data stream for the media content segment, whereby a plurality of data streams for the plurality of media content segments of the media content are generated, and transmitting the plurality of data streams for the plurality of media content segments of the media content to the one or more media devices. Other embodiments are disclosed.

Advanced data cell resource mapping

An example method of mapping a plurality of modulation symbols of a plurality of physical layer pipes present in a frame to a resource grid of data cells for the frame is described. The modulation symbols of the plurality of physical layer pipes are represented by a two-dimensional array comprising the modulation symbol values for the plurality of physical layer pipes and the resource grid of data cells is represented by a one-dimensional sequentially indexed array.

Advanced data cell resource mapping

An example method of mapping a plurality of modulation symbols of a plurality of physical layer pipes present in a frame to a resource grid of data cells for the frame is described. The modulation symbols of the plurality of physical layer pipes are represented by a two-dimensional array comprising the modulation symbol values for the plurality of physical layer pipes and the resource grid of data cells is represented by a one-dimensional sequentially indexed array.

Receiver and reception method for receiving payload data and emergency information

A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system comprises a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.

Receiver and reception method for receiving payload data and emergency information

A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system comprises a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.

Coding weighted angular prediction for intra coding
11627312 · 2023-04-11 · ·

A method and apparatus for decoding JVET video, including receiving a bitstream, and parsing said bitstream to identify a syntax element indicating an intra direction mode to use for generating at least one predictor. The intra direction mode is a first intra direction mode in a plurality of intra direction modes that includes at least one weighted intra direction mode that corresponds to a non-weighted intra direction mode. The syntax element may identify whether to use a non-weighted or weighted intra direction mode to generate the at least one predictor. Thus, the coding unit may be coded in accordance with the at least one generated predictor associated with the selected intra direction mode.

Coding weighted angular prediction for intra coding
11627312 · 2023-04-11 · ·

A method and apparatus for decoding JVET video, including receiving a bitstream, and parsing said bitstream to identify a syntax element indicating an intra direction mode to use for generating at least one predictor. The intra direction mode is a first intra direction mode in a plurality of intra direction modes that includes at least one weighted intra direction mode that corresponds to a non-weighted intra direction mode. The syntax element may identify whether to use a non-weighted or weighted intra direction mode to generate the at least one predictor. Thus, the coding unit may be coded in accordance with the at least one generated predictor associated with the selected intra direction mode.

COOPERATIVE ACCESS FRONTHAUL (CAF) ATSC BROADCAST USING LDM FOR SFN DENSIFICATION

Some aspects of this disclosure are direct to a system that includes a first scheduler configured to receive an input packet and generate a first packet to be transmitted using a first radio unit (RU). The system further includes a second scheduler configured to receive the first packet from the first scheduler and generate a second packet. The second packet is to be transmitted using a second RU. The system further includes a first fronthaul operated using evolved Common Public Radio Interface (eCPRI) protocol and configured to direct the first packet to the first RU to be transmitted on a first channel having a first frequency. The system further includes a second fronthaul operated using the eCPRI protocol and configured to direct the second packet to the second RU to be transmitted on a second channel having a second frequency different from the first frequency.