Koninklijke KPN (KKPNY) USPTO patentsUtility application

In a communication network with separate data planes including a control plane and a user plane, an application function is provided as a combination of an application function control plane (AF-CP) part operating in the network's control plane and an application function user plane (AF-UP) part operating in the network's user plane.

A system (1) is configured to associate each of multiple sets of cell groups to at least one of multiple successive time periods and for each successive time period, associate each of multiple mobile devices (11-15) to one cell group of the set associated with the time period.

A method is described of forming a bitstream by an encoder apparatus comprising: a processor of the encoder apparatus receiving a projected video frame including one or more pixel regions, the one or more pixel regions representing pixels of spherical video data projected onto one or more 2D projection surfaces of a projection model, the projection model being adapted to project spherical video data onto a rectangular 2D surface of a video frame; the processor generating a plurality of different candidate video frames on the basis of the received projected video frame, each candidate video frame being formed by applying at least one operation to one or more groups of pixels in one or more pixel regions of the projected video frame, wherein said at least operation includes a shift, mirror and/or rotation operation; and, wherein said operation is different for each of said plurality of different candidate video frames; the processor applying a rate distortion analysis to each of the candidate video frames to determine a rate distortion cost for each of the candidate video frames; and, the processor selecting a candidate video frame from said plurality of candidate video frames on the basis of the rate distortion cost; and, generating an output bitstream on the basis of the selected candidate video frame.

A method of forming a video signal by a decoder device is described wherein the method comprises receiving a bit-stream and decoder information, the decoder information signaling the decoder device the presence of one or more resolution components in the bitstream for forming a video signal, a resolution component representing a spatially subsampled version, preferably a polyphase subsampled version, of a first video signal having a first resolution, the one or more resolution components being part of a resolution component group, the group comprising a plurality of resolution components on the basis of which the first video signal is reconstructable; and, the decoder device parsing the bitstream and decoding the one or more resolution components into video frames on the basis of the decoder information.

A method of scheduling transmissions to client devices comprises receiving feedback (f1a-f3d) about a plurality of candidate downlink frequency resources (91-94) from a plurality of client devices and/or measuring channel qualities of a plurality of candidate uplink frequency resources (95-98) from receptions of transmissions, e.g. of the feedback, by the plurality of client devices.

A projection metadata system and method are provided for providing projection metadata to a rendering system for use in rendering a panoramic scene.

An encoder system and computer-implemented method may be provided for generating a video stream for a streaming client.

A user device (15) may be arranged to control insertion of personalized content into multicast content.

A method for processing spherical video data is described including a data processor providing spherical video data in the form of projected video frames to an input of an encoder process, a projected video frame including one or more pixel regions, the one or more pixel regions representing pixels of spherical video data projected onto one or more 2D projection surfaces of a projection model, preferably an equirectangular or a 3D polyhedron projection model, for projecting spherical video data onto a rectangular 2D surface of a video frame; wherein the providing of spherical video data may comprise: generating a set of modified projected video frames on the basis of a projected video frame, the generating including applying different shift and/or rotation operations to pixels, preferably one or more pixel regions, of the selected projected video frame; applying an image analysis algorithm to the modified projected video frames, the image analysis algorithm determining an image analysis parameter for a least part of the modified projected video frames, the image analysis parameter being indicative for the encoding efficiency and/or image quality; and, selecting a modified projected video frame from the set of modified projected video frames, the selected modified projected video frame being associated with an image analysis parameter indicative of the best encoding efficiency and/or image quality.

The invention relates to methods of enabling a media orchestration.

A system and method are provided for determining a size of a virtual object in a virtual environment.

The invention relates to a system and method of transferring user data from a communication module to a data processing centre over a telecommunications network.

Methods and devices are provided for use in streaming a Virtual Reality [VR] video to a VR rendering device.

A method for selectively updating a dynamic manifest file is described, wherein the method may comprise: selecting one or more metadata elements of a manifest file used by a client, the one or more selected metadata elements being associated with a subset of representations of the set of representations defined in the manifest file; transmitting a request message identifying the selected one or more metadata, and, optionally, said manifest file identifier, to a network node, the request message being configured to trigger the network node to generate a response message on the basis of the information in the request message; and, receiving the response message from the network node, wherein the response message comprises: location information, preferably an URL or a part thereof, for retrieving a selectively updated version of the dynamic manifest file used by the client, wherein the selectively updated version only comprises new segment identifiers associated with the one or more selected metadata elements; or, wherein the response message comprises: update information, preferably a patch, configured to selectively update the dynamic manifest file used by the client apparatus, wherein the update information only comprises new segment identifiers associated with the one or more selected metadata elements.

A method of establishing a connection between a remote User Equipment, UE, and a telecommunication network via a relay capable UE, wherein said telecommunication network comprises a core network and an access network, and wherein said connection is established using a Remote Radio Access Bearer between the remote UE, via a relay capable UE, via an access node in the access network, and the core network.

A device (1) is configured to derive a first security key based on information relating to a first node (17), to request use of or to use a further device (9) as a relay to the mobile communication network and to determine whether the further device is connected to the first node and/or receive a message when another device, e.g. the first node, has determined that the further device is not connected to the first node.

Methods and devices are provided for use in a streaming process (130) of a Virtual Reality [VR] video to a VR rendering device (120).

A client device is facilitated to synchronize streaming and processing a second stream to streaming and processing a first stream.