Abstract: A method for multicasting multimedia content to receivers, the method comprising: receiving, by a multicast middleware (MCMF) from a server (BMS), manifest files to access contents according to different adaptive bitrate streaming communication protocols, one of the manifest files being consistent with the MPEG-DASH protocol and describing media segments of a content, another of the manifest files being a master playlist consistent with the HLS protocol and defining locations where media playlists to access the media segments of the content are available; receiving, by the middleware from the server, the media segments of the content, transmitted in a multicast session, receiving, by the middleware from the server, the playlists, the received playlists referencing the media segments transmitted in the multicast session, and currently received by the middleware; and storing by the middleware the manifest files, the media segments and the playlists, to make them available to receivers (UD, UD1, UD2).

Abstract: A method for managing at least one communication network, including a first network including a mobility management entity. The method includes broadcasting, on a multicast IP address, an announcement message carrying an identifier of the mobility management entity; and receiving at least one attachment message from at least one entity for coordinating the broadcast in the first network or at least a second network of the at least one communication network, carrying an identifier of the broadcast coordination entity sending the attachment message.

Abstract: A method for multicasting multimedia content to receivers, the method comprising: receiving, by a multicast middleware (MCMF) from a server (BMS), manifest files to access contents according to different adaptive bitrate streaming communication protocols, one of the manifest files being consistent with the MPEG-DASH protocol and describing media segments of a content, another of the manifest files being a master playlist consistent with the HLS protocol and defining locations where media playlists to access the media segments of the content are available; receiving, by the middleware from the server, the media segments of the content, transmitted in a multicast session, receiving, by the middleware from the server, the playlists, the received playlists referencing the media segments transmitted in the multicast session, and currently received by the middleware; and storing by the middleware the manifest files, the media segments and the playlists, to make them available to receivers (UD, UD1, UD2).

Abstract: A method for accessing a service delivering content from a user terminal includes: transmitting a Uniform Resource Locator to a client module of the terminal, the URL including an identifier of a requested content and a command specifying a request or condition related to delivery to the user terminal of the requested content, if the requested content is available in the user terminal according to the specified condition, receiving the requested content from the client module, and if the requested content is not available in the user terminal according to the specified condition, transmitting the URL to a service broadcasting server.

Abstract: A method of retrieving a file, the method including: receiving a portion of a content transmitted in accordance with a multicast protocol via a file delivery service, wherein the content includes data fragments forming a file; receiving a file delivery table (FDT) from the file delivery service; reading in the file delivery table location attributes indicating locations of the data fragments in the file; and determining from the location attributes locations of non-corrupted data fragments in the content portion.

Abstract: A method for playing back an item of multimedia content by user devices, the method including steps of: receiving segments of an item of multimedia content by a server, storing the received segments in a buffer memory, transmitting a segment request from a multimedia player of a user device to the server, and transmitting, in response, a requested segment from the server to the multimedia player, if the segment is present in the buffer memory, transmitting a request for synchronization data from the multimedia player to the server, and transmitting, in response to the request, synchronization data from the server to the multimedia player, the data including an identifier of a last segment received, and a datum defining the time of receipt of the last segment by the user's device.

Abstract: The invention relates to a method for transmitting data, comprising the steps of: encoding data to be transmitted in the form of source symbols (S) grouped into a data block (DB), distributing the source symbols of the data block in sub-blocks (SB), calculating for each sub-block a respective repair symbol (R1-R9) by a linear combination of source symbols of the sub-block, and transmitting the data block in a stream of data blocks, by successively transmitting each sub-block of the data block, each sub-block being transmitted by transmitting the source symbols of the sub-block, followed by the repair symbol of the sub-block.

Abstract: A method for accessing a service delivering content from a user terminal includes: transmitting a Uniform Resource Locator to a client module of the terminal, the URL including an identifier of a requested content and a command specifying a request or condition related to delivery to the user terminal of the requested content, if the requested content is available in the user terminal according to the specified condition, receiving the requested content from the client module, and if the requested content is not available in the user terminal according to the specified condition, transmitting the URL to a service broadcasting server.

Abstract: A method of retrieving a file, the method including: receiving a portion of a content transmitted in accordance with a multicast protocol via a file delivery service, wherein the content includes data fragments forming a file; receiving a file delivery table (FDT) from the file delivery service; reading in the file delivery table location attributes indicating locations of the data fragments in the file; and determining from the location attributes locations of non-corrupted data fragments in the content portion.

Abstract: There is provided an LTE device configured to connect to an LTE network, connect to or provide a LAN, and to provide eMBMS services over the LAN.

Abstract: A method for playing back an item of multimedia content by user devices, the method including steps of: receiving segments of an item of multimedia content by a server, storing the received segments in a buffer memory, transmitting a segment request from a multimedia player of a user device to the server, and transmitting, in response, a requested segment from the server to the multimedia player, if the segment is present in the buffer memory, transmitting a request for synchronization data from the multimedia player to the server, and transmitting, in response to the request, synchronization data from the server to the multimedia player, the data including an identifier of a last segment received, and a datum defining the time of receipt of the last segment by the user's device.

Abstract: There is provided an LTE device configured to connect to an LTE network, connect to or provide a LAN, and to provide eMBMS services over the LAN.

Abstract: The invention concerns a method for compressing and decompressing a structured document, associated with at least a tree diagram structure defining a document structure and comprising nested structure elements, associated with a type of information, and representing sets of data, the method comprising steps which consists in: performing a syntactic analysis of the structure diagram and standardizing it so as to obtain a single predefined sequence of the elements of the diagram; compiling the standardized diagram to obtain finite automata, each automaton comprising states interconnected by transitions respectively representing the elements of the structure; and compressing the document, and executing at least a compression algorithm associated with a type of information, when a set of data having the type of information is encountered in the document.

Abstract: The invention concerns a method for compressing and decompressing a structured document, associated with at least a tree diagram structure defining a document structure and comprising nested structure elements, associated with a type of information, and representing sets of data, the method comprising steps which consists in: performing a syntactic analysis of the structure diagram and standardizing it so as to obtain a single predefined sequence of the elements of the diagram; compiling the standardized diagram to obtain finite automata, each automaton comprising states interconnected by transitions respectively representing the elements of the structure; and compressing the document, and executing at least a compression algorithm associated with a type of information, when a set of data having the type of information is encountered in the document.

Abstract: A method for the acquisition of structured data to be memorized by a terminal, the structured data being periodically broadcasted in the form of sets of structured data flows, the method comprising: receiving a starting data flow available at an address known by the terminal and comprising information for accessing at least one selected set of structured data flows, associated to an update piece of information, determining according to the update piece of information if the selected set has been updated, and if the selected set has been updated: receiving structured data flows of the selected set, and updating the data memorized by the terminal with the updated data received.

Abstract: There is provided a method of displaying additional content by a user terminal, comprising: receiving by the terminal digital content items of video broadcasting services, the digital content items comprising video programs, displaying by the terminal a content item selected from the received digital content items, receiving by the terminal additional content items associated with one of the video broadcasting services and with context data, and displaying by the terminal a content item selected from the received additional content items if a current context of the terminal corresponds to the context data of the content item.

Abstract: A method for encoding a group of several structured fragments includes analyzing structure schemas of the fragments in order to obtain sequences of executable instructions for each component of the schemas. The instruction sequences are executed on the structured fragments so as to obtain an encoded binary stream containing the control codes and the information elements values of the fragments. The values of the information elements of the fragments in data blocks are distributed as a function of the respective types of the elements. The respective positions in the structure block are stored in a pointer table for each fragment and in the data blocks of the control codes and the information element values of the fragment. Compression algorithms are applied to the blocks adapted to the contents thereof, and the contents of the pointer table and data blocks are concatenated into an encoded binary container.

Abstract: The invention relates to a method of compressing a structured document having a tree-like structure comprising elements nested in each other, each element comprising attributes and a value field which may comprise other elements, the method comprising defining a simplified type comprising only a part of attributes of an original type, and for each element of the original type, replacing the type identifier in the element with an identifier of the simplified type when the element differs from a previous element having the original type only in the attribute values or presences of the simplified type attributes.

Abstract: The method applies to a structured document (D) presenting a hierarchical structure defined by a structure schema, the document combining a main structured set (1) of information including information subsets (1.1, 1.2, 1.3, . . . , 1.2.2.2), at least some of the information subsets being structured and being capable of including information subsets of lower hierarchical level, each information subset being associated in the higher level information set with a respective information type (T). The method comprises the steps of: dividing the document into structured portions (P1, P2, P3) capable of being handled individually, namely a main portion (P1) and at least one secondary portion (P2, P3), the main portion containing at least the main set (1) of information, and the secondary portion containing an information subset (1.2.1, 1.2.

Abstract: The method applies to a structured document presenting a hierarchical structure defined by a structure schema, the document combining a main structured set of information including information subsets at least some of the information subsets being structured and being capable of including information subsets of lower hierarchical level, each information subset being associated in the higher level information set with a respective information type.