Abstract: In a communication system, a transmitter is configured to change a transmission characteristic used for the communication with a receiver, wherein a receiver is configured to determine a reception quality of a communication link between the transmitter and the receiver and to transmit a feedback information to the transmitter indicating whether a reception quality has changed or in which direction the reception quality has changed, or whether a transmission characteristic should be maintained, wherein the transmitter is configured to further change the transmission characteristic used for the communication with the receiver in dependence on the feedback information received from the receiver.

Abstract: Concepts for a video coding are described. A first aspect provides a concept for determining an interlayer reference picture for inter-predicting a picture of a multi-layered video data stream. A second aspect provides a concept for the usage of an interlayer prediction tool in multi-layered video data streams. A third aspect is concerned with a determination of a maximum temporal sublayer of an OLS or a maximum temporal sublayer to be decoded.

Abstract: A user device, UE, for a wireless communication network, is described. The wireless communication network includes a plurality of user devices, UEs. The UE is to communicate with one or more network entities of the wireless communication network, like a base station or another UE. Responsive to a trigger for a transmission, the UE is to obtain resources for the transmission. The UE is to receive from one or more further UEs one or more reports or assistance information messages, AIMs, the report or AIM including resource allocation related assistance information. Dependent on a type of resource allocation related assistance information contained in the received report or AIM and/or dependent on a certain criterium, the UE is to decide how to use the received report or AIM for obtaining resources for the transmission.

Abstract: A user device, UE, for a wireless communication network is described that acts as a relaying entity so as to provide functionality to support connectivity between one or more transmitting entities and one or more receiving entities of the wireless communication network. The UE is to sets up one or more logical channels and/or one or more data bearers for a transmission of data from the UE to the one or more receiving entities based on the origin of the data.

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.

Abstract: A first aspect provides concepts for handling coded layer video sequence boundaries in multilayered video bitstreams having inter-layer references. A second aspect provides concepts for handling, signaling and deriving of picture output timing, e.g. with respect to an access unit specific signaling and an output layer specific signaling of a number of repetitions of a picture output.

Abstract: A video encoder for providing an encoded video representation, wherein the video encoder is configured to provide a video stream comprising encoded parameter information describing a plurality of encoding parameters, encoded video content information and one or more merge identifiers indicating whether and/or how the encoded video representation can be merged with another encoded video representation.

Abstract: The present invention concerns file parsers, file generators encoders, decoders, clients, servers and methods using parameter sets for coded video sequences. Said parameter sets may have decoding parameter information and may be conveyed in-band or out-of band. Some embodiments provide solutions to problems being related with correctly initializing a decoder for decoding coded video sequences in open GOP switching scenarios. Some embodiments may provide for hierarchical track switching levels.

Abstract: A user device, UE, for a wireless communication system is described. The wireless communication system including a plurality of user devices, UEs. Responsive to a trigger for a transmission, the UE obtains a candidate resource set for the transmission by selecting resources for the transmission within a selection window following the trigger. The UE selects the resources by taking into consideration sensing results obtained by the UE during a sensing window preceding the trigger, and the sensing results indicate whether certain resources are available or unavailable for the transmission. The UE receives from one or more further UEs one or more reports or assistance information messages, AIMS, including resource allocation related assistance information, and considers a received report or AIM for selecting resources for the transmission when one or more predefined conditions are met.

Abstract: For transmitting a panorama video having a resolution higher than a decoder can decode, at a transmitter side, encoded data coding different (groups of) spatial segments of a video picture of a video stream are packetized into separate substreams, to obtain a group of separate substreams. At a receiver side, from the group of separate substreams a proper subset of the separate substreams is extracted and combined to a data stream containing encoded data coding respectively a proper subset of the spatial segments or groups of subsequent spatial segments of the video picture of the video stream. Thus, a decoder may decode only a subregion of the video picture of the video stream, the subregion being defined by the spatial segments or groups of spatial segments coded in the encoded data contained in the data stream.

Abstract: An interleaved multi-layered video data stream with interleaved decoding units of different layers is provided with further timing control information in addition to the timing control information reflecting the interleaved decoding unit arrangement. The additional timing control information pertains to either a fallback position according to which all decoding units of an access unit are treated at the decoded buffer access unit-wise, or a fallback position according to which an intermediate procedure is used: the interleaving of the DUs of different layers is reversed according to the additionally sent timing control information, thereby enabling a DU-wise treatment at the decoder's buffer, however, with no interleaving of decoding units relating to different layers. Both fallback positions may be present concurrently. Various advantageous embodiments and alternatives are the subject of the various claims attached herewith.

Abstract: Scene description data having first data defining a 3D object and second data triggering an animation of the 3D object. The second data triggers an application of the animation to the 3D object and has a parameter discriminating between several animation modes of the application.

Abstract: A concept for a video data stream extraction is presented which is more efficient namely which is, for example, able to more efficiently deal with video content of a type unknown to the recipient with videos of different type differing, for instance, in view-port-to-picture-plane projection, etc., or which lessens the extraction process complexity. Further, a concept is described using which a juxtaposition of different versions of a video scene, the versions differing in scene resolution, may be provided more efficiently to a recipient.

Abstract: A concept for transmitting information from a client to a server is described, the client being for streaming visual content from the server and for integrating the visual content into a 3D scene of a user application, and the client being for obtaining a rendered view of the 3D scene.

Abstract: A user device, UE, for a wireless communication network is described that communicates with one or more network entities of the wireless communication network, like a base station or another UE. The UE receives from a network entity a transmission, the transmission including a control region, like a Physical Sidelink Control Channel, PSCCH, and a data region, like a Physical Sidelink Shared Channel, PSSCH. The transmission includes a first control message, like a 1st-stage SCI, in the control region, and a second control message, like a 2nd-stage SCI, in the data region. The second control message includes control data and occupies some or all of the resources allocated in the data region of the transmission, or is associated with control data included in at least a part of the data region of the transmission.

Abstract: A user equipment, UE, for a wireless communication network including one or more base stations, performs a transmission to a base station using a grant-free, GF, transmission scheme. The transmission being performed in accordance with a GF transmission configuration. The UE receives from the base station a certain signaling. The certain signaling indicates that the base station failed to identify the UE from the transmission. Responsive to the certain signaling from the base station, the UE retransmits the transmission in accordance with a GF retransmission configuration. The GF retransmission configuration is different from the GF transmission configuration.

Abstract: An apparatus for a wireless communication system is configured to be connected to at least one user device, UE, of the wireless communication system via a sidelink for a sidelink communication with the at least one UE. For a unicast transmission to the UE, the apparatus is configured to transmit a sidelink frame having a certain frame duration, a first part of the sidelink frame including a control signaling, the control signaling indicating to the UE whether a feedback is to be returned to the apparatus, the feedback indicating a successful reception of data at the UE and/or a sidelink channel condition. In case the feedback from the UE is desired, the apparatus is configured to transmit in the first part of the frame, using the control signaling, the indication that the feedback is to be provided by the UE such that a duration of the control signaling is shorter, by a remaining duration, than the frame duration, and receive from the UE, during the remaining duration, the feedback.

Abstract: A video decoder for decoding an encoded video signal including encoded picture data and indication data of a picture of a video to reconstruct the picture of the video is provided. The video decoder includes an interface configured for receiving the encoded video signal, and a data decoder configured for reconstructing the picture of the video by decoding the encoded picture data using the indication data. The picture is partitioned into a plurality of coding areas. One or more coding areas of the plurality of coding areas include two or more coding tree units of the plurality of coding tree units, wherein each coding area of the one or more coding areas which includes two or more coding tree units exhibits a coding order for the two or more coding tree units of the coding area.

Abstract: A video data stream is rendered reducible in a manner so that the reduction leads to a restriction of pictures of the reduced video data stream to merely a predetermined subarea of the pictures of the original video data stream and in a manner so that transcoding, such as re-quantization, may be avoided and a conformance of the reduced video data stream relative to the codec underlying the original video data stream be maintained. This is achieved by providing the video data stream with information including an indication of the predetermined subarea and replacement indices for redirecting the indices included by the payload portion so as to refer to, and/or replacement parameters for adjusting the first set of coding parameter settings so as to result in, a second set of coding parameter settings.

Abstract: A video encoder according to embodiments is provided. The video encoder is configured for encoding a plurality of pictures of a video by generating an encoded video signal, wherein each of the plurality of pictures has original picture data. The video encoder has a data encoder configured for generating the encoded video signal having encoded picture data, wherein the data encoder is configured to encode the plurality of pictures of the video into the encoded picture data. Moreover, the video encoder has an output interface configured for outputting the encoded picture data of each of the plurality of pictures. Furthermore, a video decoders, systems, methods for encoding and decoding, computer programs and encoded video signals according to embodiments are provided.