Abstract: The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with.

Abstract: A wireless communication system includes one or more base stations, and one or more user devices, UEs. The base station transmits data to a UE being served by the base station, the data including control data and user data, the user data including at least first user data and second user data, the first user data associated with a first service and second data associated with second service, the first and second services having one or more different transmission requirements. Responsive to receiving in the control data a grant for a feedback transmission, the UE sends a feedback to the base station, the feedback indicating for one or more data blocks of the data a successful or non-successful reception at the UE. The control data includes a first downlink assignment index (DAI) associated with the first data, and a second DAI associated with the second data.

Abstract: The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.

Abstract: A wireless communication system includes one or more base stations, and a plurality of UEs for a sidelink communication using sidelink resources. The UEs includes a transmitting UE and a receiving UE using a subset of the sidelink resources of the wireless communication system. The receiving UE sends over the sidelink a sidelink feedback to the transmitting UE. The sidelink feedback indicates for a data transmission a successful or non-successful reception at the receiving UE. The transmitting UE reports the sidelink feedback to a base station. The base station provides to the transmitting UE, responsive to the sidelink feedback, sidelink resources for a possible retransmission of a data packet over the sidelink to the receiving UE. The reporting of the sidelink feedback to the base station by the transmitting UE is activated or deactivated responsive to one or more conditions.

Abstract: Portion- or tile-based video streaming concepts are described.

Abstract: A user equipment, UE, for a wireless communication network, performs Semi-Persistent Scheduled, SPS, transmissions of messages using SPS, e.g., data or control messages, in the wireless communication network with a certain SPS interval and during a certain SPS overall time duration. The UE selects the certain SPS overall time duration for the certain SPS interval from one of a plurality of sets of SPS overall time durations, each set including a plurality of SPS overall time durations.

Abstract: An apparatus for a wireless communication system is describes. The wireless communication system includes one or more base stations and a plurality of user devices, UEs. The apparatus is configured to be connected to one or more UEs via a sidelink for a sidelink communication with the one or more UEs, the apparatus and the one or more UEs forming a group of UEs and using a set of group resources to be used for the sidelink communication within the group of UEs. In case a base station does not provide resource allocation configuration or assistance, the apparatus is configured to select resources from a set of resources provided by the wireless communication system so as to alter or completely change the set of group resources to be used for the sidelink communication within the group of UEs.

Abstract: A video data stream having a video encoded thereinto and is described. It includes first timing information on first coded picture buffer, CPB, removal times to be applied at decoder side in case of buffering a complete version of the video data stream, and second timing information on second CPB removal times to be applied at decoder side for buffering a reduced version of the video data stream, differing from the video data stream by removal of a portion of the video data stream from the complete version of the video data stream. Corresponding video encoders, video decoders, network nodes, apparatuses for managing the coded picture buffer, CPB, of a video decoder, and apparatuses for splicing together video data streams are also referred to.

Abstract: A user device, UE, for a wireless communication system, is described. The UE may transmit and/or receive over a sidelink, SL, in the wireless communication system. Responsive to detecting one or more collisions on one or more resources used or reserved to be used by a further UE for one or more transmissions over the SL, the UE may transmit a collision indication, Cl, and an assistance information, like an assistance information message, AIM, the assistance information indicating one or more preferred and/or not preferred resources for a transmission by the further UE.

Abstract: A section-specific video data stream is derived by reducing a video data stream pertaining an entire scene with conservation of conformance by use of a file format and incorporating slices into which tiles of a set of tiles are encoded which forms the section, are incorporated into a set of one or more source tracks and a set of one or more gathering tracks including construction instructions is used in order to indicate a synthesis of the section-specific video data stream by signaling replacements of certain portions of the slices and instructing to copy certain portions of the slices. Further, there is described a concept pertaining an indication of a position of a region of interest.

Abstract: A file parser for generating an output video bitstream from a file according to an embodiment is provided. The file parser is configured to receive the file being an input video bitstream, wherein the input video bitstream has a video encoded therein. The input video bitstream has a sample group, the sample group having a network abstraction layer unit; and/or the input video bitstream has an indication that an access unit of a plurality of access units of the input video bitstream or a sample of a plurality of samples of the input video bitstream, which does not have the network abstraction layer unit, should have the network abstraction layer unit. The file parser is configured to generate the output video bitstream from the input video bitstream depending on the sample group.

Abstract: A user equipment for a mobile communication network is provided. The mobile communication network has a radio access network including a plurality of cells and being configured to serve the user equipment within a cell. To receive a data packet from the radio access network, the user equipment is configured to receive a plurality of different versions of the data packet transmitted by the radio access network to the user equipment in parallel via different physical resources. To provide a data packet to the radio access network, the user equipment is configured to provide a plurality of different versions of the data packet and to transmit the plurality of different versions of the data packet to the radio access network in parallel via different physical resources.

Abstract: A video decoder (151) for decoding an encoded video signal comprising encoded picture data to reconstruct a plurality of pictures of a video sequence of a video. The video decoder (151) comprises an input interface (160) configured for receiving the encoded video signal comprising the encoded picture data. Moreover, the video decoder (151) comprises a data decoder (170) configured for reconstructing the plurality of pictures of the video sequence depending on the encoded picture data. Moreover, further video decoders, video encoders, systems, methods for encoding and decoding, computer programs and encoded video signals according to embodiments are provided.

Abstract: Sub-picture extraction is rendered less complex by providing each slice with start position information which indicates a starting position from which onwards the picture is, along a coding path, encoded into the respective slice, relative to an onset position at which the coding path starts traversing a segment the starting position is located in. Alternatively or additionally, sub-picture extraction processes are treated like choosing one layer out of a multi-layer datastream.

Abstract: Interpolation between explicitly signaled CPB (or HRD) parameters at selected bit rates is used to achieve a good compromise between CPB parameter transmission capacity and CPB parametrization effectiveness and may be, particularly, made in an effective manner.

Abstract: A video encoder is disclosed that is configured to encode a slice of a current picture into a data stream by partitioning the slice into rows of Coding Tree Units (CTUs), select a CTU dependency offset for the slice out of a plurality of CTU dependency offsets, the CTU dependency offset indicating a minimum CTU offset between consecutive CTU rows to be obeyed by a decoder when decoding CTU rows in parallel, and signal the CTU dependency offset in the data stream. The CTU dependency offset is selected based on a slice type of the slice.

Abstract: Transmitter of a (type a) user equipment, UE, wherein the transmitter is configured for a sidelink transmission without sidelink reception; wherein the transmitter is configured to perform random resource selection for the sidelink transmission in a resource pool with random resource selection enabled, wherein the random resource selection is limited to a resource pool with disabled physical sidelink feedback channel.

Abstract: A base station for a wireless communication network comprising a plurality of logical radio access networks, wherein the base station is configured to communicate with a plurality of users to be served by the base station for accessing one or more of the logical radio access networks, and the base station is configured to selectively control the physical resources of the wireless communication network assigned to the logical radio access networks and/or to control access of the users or user groups to one or more of the logical radio access networks, wherein, during a first operation mode of the wireless communication network, the base station is configured to allow access of users or user groups of one or more of the logical radio access networks (e.g.

Abstract: A user device, UE, for a wireless communication system, is described, which skips a certain number of control channel monitoring occasions, MOs, like physical downlink control channel, PDCCH, MOs, or a physical sidelink control channel, PSCCH, MOs, in accordance with a certain control channel MO skipping pattern.

Abstract: An apparatus (200) for receiving an input video data stream according to an embodiment is provided. The input video data stream has a video encoded thereinto. The apparatus (200) is configured to generate an output video data stream from the input video data stream.