Abstract: During an adaptive streaming session of video content, an access latency is obtained by a client device (100A) running the adaptive streaming session in order to adapt the quality of the requested video content when necessary.

Abstract: During an adaptive streaming session of video content, an access latency is obtained by a client device (100A) running the adaptive streaming session in order to adapt the quality of the requested video content when necessary.

Abstract: A method and device for packet processing implemented by a packet processing device is described. The packet processing device is connected to a communication network from which the packet processing device receives and/or transmits packets in a context of network service chaining. The method includes obtaining a set of packets, each packet of the set of packets comprising at least one specific characteristic; grouping the packets of the set of packets according to the at least one specific characteristic, and delivering at least two subsets of packets; and adding, to at least one of the subsets of packets, metadata common to the packets of the at least one subset of packets.

Abstract: During an adaptive streaming session of video content, an access latency is obtained by a client device (100A) running the adaptive streaming session in order to adapt the quality of the requested video content when necessary.

Abstract: A mechanism allowing a client application at a client device to operate multiple connection paths with a transfer protocol by implementing a master connection at an application layer and slave connections at a network layer, wherein requests for resources associated with the master connection are distributed over the slave connections established on distinct network interfaces of the client device.

Abstract: The invention concerns a method for adapting the downloading behavior of a client terminal configured to receive a multimedia content from at least one server, said multimedia content being defined by at least one representation, wherein it comprises the steps of: requesting (S0) a first part of said multimedia content with a given representation; detecting (S1) if a cache between is located along the transmission path the client terminal and a server, based on the request of said first part; in case (S3) a cache is detected, requesting a second part of said multimedia content with a representation depending on at least one performance criterion.

Abstract: Cache (DANE) located along a transmission path between client terminals (CT) and at least one server (SE) and configured to receive requests from client terminals (CT) for segments of a multimedia content available at several representations, which comprises: —an interface of connection (1) for receiving, from a first client terminal, a first request for a preferred representation and at least one alternative representation of a given segment of said multimedia content; —a matching module (5) configured to determine if at least one ongoing representation of said given segment, already requested by the cache from a server for a further client terminal, matches the preferred representation or an alternative representation of the first request.

Abstract: The invention concerns a device of a network configured for implementing a method for distributing available bandwidth of said network (N1) amongst ongoing traffic sessions of devices (C1, C2, C3) of the network (N1). Said device comprises: —a communication module (2) to collect status messages from devices (C1, C2, C3) of the network running at least one traffic session; —a ranking module (5) configured to rank said ongoing traffic sessions according to parameters of devices and traffic sessions retrieved from status messages; —a calculator (6) configured to determine bandwidth to be allocated to each ranked traffic session in function of the available bandwidth, a rank of the ranked traffic sessions and a type of the ranked traffic session; —a comparator (7) able to check whether the determined bandwidth to be allocated to a traffic session of the device is different from zero.

Abstract: Method for providing a content part of a multimedia content to a client terminal, corresponding cache. According to the invention, the method for providing a content part of a multimedia content to a client terminal, one or more caches being arranged along the transmission path between the client terminal and a remote server, several representations of said content part being available, comprises: —receiving (S0) at a first cache (R), from the client terminal, a request for a given representation of said content part belonging to a set of allowable representations selected among said available representations of the content part, said request further comprising a list of alternative representations of the set and auxiliary information for specifying the scope of the request; —checking (S1) at said first cache (R) if said given representation is stored in the cache; —in case said given representation is not cached, browsing (S2) at said first cache (R) alternative representations listed.

Abstract: First type cache adapted to be arranged between a client terminal and at least one server, which: is configured to receive, from the client terminal, a request for a first representation of a segment of a multimedia content, said multimedia content being available in a plurality of representations, and comprises a module configured to send a response to the client terminal which comprises: one alternative representation of said segment, which is cached by said first type cache; first additional information preventing a second type cache—arranged between the first type cache and the client terminal—from caching the alternative representation of said response; and second additional information identifying the alternative representation of said response, allowing a further first type cache to cache said alternative representation.

Abstract: Method for retrieving, by a client terminal, a content part of a multimedia content, a cache being arranged along the transmission path between the client terminal and a server, several representations of said content part being available, comprising: A/ sending a request for a first representation of said content part belonging to a set of allowable representations selected among said available representations of the content part; B/ in case said first representation is not cached, receiving a response message from said cache indicating that the first representation is not cached; and wherein, upon receipt of a response message, steps A/ and B/ are successively repeated with an alternative representation of said content part, different from the first representation, until one requested alternative representation has been received by the client terminal from said cache or until all allowable representations of the set have been requested.

Abstract: The present invention concerns a device and a method at the device, the device comprising a first interface to a first network comprising an adaptive streaming server, a second interface to a second network comprising at least one adaptive streaming client device, a stream identifier for detecting at least one streaming content requested by the at least one adaptive streaming client device, the at least one streaming content being available at more than one data rate, a bandwidth manager for selecting a data rate among the more than one data rate, a scheduler for transmitting at the second interface the at least one streaming content to the at least one client device at a data rate above said selected data rate but below any higher data rate available for said streaming content.

Abstract: A device is intended to process three-dimensional content for a server. The three-dimensional content comprises at least two image sequences obtained from different angles, wherein a three-dimensional rendering is associated to a level of disparity between said at least two image sequences. This processing device is configured to generate from a content at least two different content versions corresponding to different levels of disparity adapted to different transmission bit rates, wherein the disparity level decreases with said transmission bit rate. A server comprising the processing device, a three-dimensional content-obtaining device, and a content receiver comprising three-dimensional content-obtaining device are further disclosed.

Abstract: A cache arranged between client terminals and at least one server, said cache being configured to receive, from client terminals, requests for at least a first representation of a segment of a multimedia content available in a plurality of representations, comprising: a communication module configured to receiving, in a first period of time, a plurality of requests for a given segment from the client terminals, each request specifying one first representation and at least one alternative representation of said given segment; a module of relevancy configured to determining at least one main relevant requested representation amongst the representations of the requests received during the first period of time; and wherein the communication module is further configured to request said main relevant representation from a remote server.

Abstract: A network element adapted to be connected to a communication network includes a set of devices, the devices being configured to receive one set of available services. The network element is a bandwidth manager that is configured to obtain, for couples defined by a service of the set of services and a device of the set of devices, a bandwidth for each flow between the service and the device of the couples; obtain a priority for the flows to be delivered between the services and the devices of the couples; solve a 0-1 Knapsack problem by applying the obtained bandwidths and priorities and by considering an available downlink bandwidth associated with the communication network, to identify one or more allowable flows to be delivered between services of the set of services and devices of the set of devices; and allow the identified one or more allowable flows to be delivered to the corresponding devices of the communication network.

Abstract: A device of a network configured for implementing a method for distributing available bandwidth of the network amongst ongoing traffic sessions of devices of the network is described. The device includes a communication module, a ranking module, a calculator and a comparator. The communication module collects status messages from devices of the network running at least one traffic session. The ranking module is configured to rank the ongoing traffic sessions according to parameters of devices and traffic sessions retrieved from status messages. The calculator is configured to determine bandwidth to be allocated to each ranked traffic session in function of the available bandwidth, a rank of the ranked traffic sessions and a type of the ranked traffic sessions. The comparator checks whether the determined bandwidth to be allocated to a traffic session of the device is different from zero such that available bandwidth can be distributed amongst ongoing traffic sessions.

Abstract: A method and apparatus for delivering content via adaptive streaming technique over multiple communication paths between a client and a server are described. The method includes measuring a first, and respectively a second, available bit rate on the first, and respectively second, path, determining a requested bit rate from the measured first and second available bit rates, sending a first request via the first path for receiving a first part of the chunk of content identified by the time index i and by the requested bit rate and a second request via the second path for receiving a second part of the chunk of content, the first and second chunks of content being complementary, the size of each of the chunks being computed from the available bit rate and receiving the requested first, and respectively second, part via the first, and respectively second, path.

Abstract: The invention discloses a method for reception of an audio-visual program transmitted via portions over a network, the method using a real-time transport protocol and a real-time control protocol between a server and a receiver, the audio-visual program being available on the server in a plurality of versions corresponding to the program coded in different resolutions and enabling its transmission at different bitrates according to requests of the receiver. The method comprising a regular measurement of the bandwidth of the network by the receiver in order to adjust the transmission bitrate according to the state of the network.

Abstract: This invention relates to a system, server and client for multiplexed streaming of multimedia content comprising at least one server being capable of transmitting multimedia content in a streaming environment through one or more data paths to a client, wherein the multimedia content is de-multiplexed by the server into a plurality of sub-streams with each sub-stream comprising a unique mark such that the client is capable of multiplexing said sub-streaming into a continuous stream. Furthermore, the invention relates to a method for multiplexed streaming of multimedia content.

Abstract: Method of transmission of data between a server and a client, said transmission using a multihoming protocol, as SCTP, over a network comprising at least one principal link and one secondary link connecting the server and the client, said method comprising the steps of: a) set-up of a connection between the server and the client; b) allocation of a bandwidth over the principal link to the transmission of data from the server to the client; c) transmission of data from the server to the client over the principal link as long as said allocated bandwidth is not fully used; and d) if the allocated bandwidth has been fully used, transmission of data from the server to the client over the secondary link.