Patent application number | Description | Published |
20100083334 | CONTROL DEVICE AND METHOD FOR OPTIMIZING ZAPPING TIME BETWEEN BROADCASTED CONTENTS IN AN OPPORTUNISTIC WAY - A control device (D), for a broadcast network (BN) intended for broadcasting contents of P channels to user terminals (T), comprises i) a management means (MM) arranged for grouping the P channels into K groups (with K≦N) according to at least one chosen criterion, and for associating a weighting factor to each of these groups, and ii) a grouping means (GM) arranged for grouping the contents according to the groups to which belong their respective channels in order these groups of content(s) be broadcasted according to a priority law depending on their associated weighting factors. | 04-01-2010 |
20100287593 | METHOD OF TRANSMITTING DATA FROM AN INFRASTRUCTURE OF A RADIO-COMMUNICATION NETWORK TO USER EQUIPMENT, AND EQUIPMENT FOR IMPLEMENTING THE METHOD - Within a user device to which a radio communication network infrastructure transmits data carried by a sequence of frames broadcast to the user device, each frame comprising a first section comprising data and a second section comprising redundancy information associated with the data of a predetermined number B of previous frames in the sequence, a number of consecutive lost frames is compared to a threshold dependent on the number B of previous frames with which said redundancy information is associated and encoding parameters that generate said redundancy information, and a request to retransmit at least one of the consecutive lost frames is sent to the radio communication network infrastructure if the number of consecutive lost frames exceeds said threshold. | 11-11-2010 |
20120057641 | TRANSMITTING METHOD AND A RECEIVING METHOD OF A MODULATED DATA STREAM - The present invention relates to a transmitting and a receiving methods of a modulated data stream (MOD). It is characterized in that at the transmitting side, it comprises the steps of: Generating a mixed data stream (MD) on the basis of mixing a first data stream (HP) with a second data stream (LP); Encoding said first data stream (HP) and said mixed data stream (MD); Generating a modulated data stream (MOD) on the basis of mapping said mixed data stream (MD). At the receiving side, it comprises the steps of: Generating a demapped data stream on the basis of demapping said modulated data stream (MOD); Generating a first and a second deinterleaved data streams on the basis of deinterleaving said demapped data stream; Decoding said first deinterleaved data stream; Generating an a priori information on the basis of mixing a part of the first decoded deinterleaved data stream with a mixing vector; and Decoding said second deinterleaved data stream using said a priori information. | 03-08-2012 |
20120093144 | OPTIMIZED METHOD OF TRANSMITTING LAYERED CONTENTS TO MOBILE TERMINALS AND VIA A RADIO INFRASTRUCTURE WITH ACCESS PROCEDURE OF TDM/TDMA/OFDMA TYPE, AND ASSOCIATED PROCESSING DEVICE - A method is devoted to the transmission, via a wave-based transmission infrastructure (RC) using an access method relying on multiplexing that is at least time division multiplexing, of content from at least one channel, each piece of content being arranged into one base data layer and at least one enhancement data layer, respectively associated with different transmission time slices, and broken down into portions transmitted during the time slices respectively associated with their layers. This method comprises i) the insertion, in a chosen location of each portion of a base data layer to be transmitted, within a chosen network layer, of at least one learning sequence processed according to a configuration scheme identical to that used to process said enhancement data layer, and ii) upon receiving a portion of a base data layer of a piece of content within a terminal (TC), extracting said learning sequence inserted into a chosen network layer, then estimating the reception quality based on that extracted learning sequence, and allowing it to use the next portion of said content's said enhancement data layer whenever the estimated quality is above a chosen threshold. | 04-19-2012 |
20120275468 | METHOD FOR TRANSMISSION OF LAYERED MULTIMEDIA CONTENTS TO HETEROGENEOUS TERMINALS VIA A TDM/TDMA MULTIPLEXING INFRASTRUCTURE, AND ASSOCIATED PROCESSING DEVICE AND DECODER - A transmission device (ET) is intended to be a component of a time multiplexing (RC) transmission infrastructure with at least one channel and in different transmission time slots, of multimedia contents, such multimedia contents being arranged in at least two complementary data layers. Said device (D) is responsible, in the presence of an association of a time slot to each complementary layer constituting a channel multimedia content, i) for separating the complementary layers of each multimedia content to be transmitted, ii) for chopping up the separated complementary layers into portions of selected sizes, and iii) for incorporating each portion of a layer into a burst so as to transmit each burst during a time slot associated to the layer comprising the portion it integrates. | 11-01-2012 |
20130077605 | METHOD FOR TRANSMITTING VIDEO CONTENTS FROM A SERVER TO A TERMINAL OF A USER WITHIN SERVICE PERIODS OF A RADIO TRANSPORT CHANNEL - The invention related to a method for transmitting video contents from a server to a terminal of a user within service periods (S) of a radio transport channel, each video content being encoded by using scalable codec technology for integrating a scalable codec base layer (b | 03-28-2013 |
20140004870 | METHOD FOR PROVIDING A MINIMUM COVERAGE FOR MULTIMEDIA TRANSMISSION IN PRESENCE OF SWITCHED OFF CELLS | 01-02-2014 |