Abstract: A content delivery system for delivering an audio and/or video content to a mobile terminal is deployed on top of a mobile network and includes plural edge cache servers arranged using a star or hierarchical topology. The edge cache servers are connected to respective aggregation nodes of the mobile network such that a configurable breakout function of the nodes enables routing thereto packets addressed to an anycast addressing associated with the servers. When receiving a request, from the mobile terminal, for obtaining a manifest file of the audio and/or video content, an edge cache controller of the content delivery system creates a session identifier including a unicast addressing part pointing to the controller, and redirects the mobile terminal to the anycast addressing of the servers. The servers then obtain the session identifier from the mobile terminal and use the unicast addressing contained therein to receive context information from the controller.

Abstract: This document describes an adaptive bitrate streaming method allowing streaming an audio video (AV) content to a client device using a multi content delivery network (CDN) approach. Each CDN stores multiple versions of a content that can be requested in the form of a succession of consecutive files using HTTP requests. The method is based on a use of an intermediate module, called diversity module, between an AV player of the client device and each CDN of a plurality of CDN. For each file of a version of a content requested by the AV player, the diversity module requests a manifest file to each CDN and estimates a bitrate of each CDN using reception performances of the manifest files. Each file is requested by the diversity module in the form of a succession of groups of segments structured according to a pattern comprising a predetermined number of segments.

Abstract: A gateway connects a first communication network comprising at least one terminal intended to consume multimedia contents and a second communication network via which the gateway is intended to receive the multimedia contents in a stream form. The gateway detects (400) a use of a unicast connection intended for transmitting a multimedia content from an original server to a terminal of said network via the gateway; seeks (403) a connection redirection rule according to information exchanged by the original server and the terminal; establishes (406) a multicast connection in order to receive the multimedia content; receives (407) the multimedia content in the form of a stream according to the multicast connection; and transmits (409) to the terminal the multimedia content in the form of a stream according to the unicast connection.

Abstract: An adaptive bitrate streaming method streams audio video (AV) to a client using a multi content delivery network (CDN) approach. Each CDN stores versions of content that can be requested in a succession of consecutive files using HTTP requests. The method is based on use of an intermediate module between an AV player of the client and each CDN. For each file of a version requested by the AV player, the intermediate module requests a manifest file to each CDN and estimates a bitrate of each CDN using reception performances of the manifest files. Each file is requested by the intermediate module in a succession of segment groups according to a pattern including a predetermined number of segments. Each group includes one set of segments for each CDN, each set including segments to be requested to the CDN to which they correspond proportional to the bitrate of this CDN.

Abstract: A gateway connects a first communication network comprising at least one terminal intended to consume multimedia contents and a second communication network via which the gateway is intended to receive the multimedia contents in a stream form. The gateway detects (400) a use of a unicast connection intended for transmitting a multimedia content from an original server to a terminal of said network via the gateway; seeks (403) a connection redirection rule according to information exchanged by the original server and the terminal; establishes (406) a multicast connection in order to receive the multimedia content; receives (407) the multimedia content in the form of a stream according to the multicast connection; and transmits (409) to the terminal the multimedia content in the form of a stream according to the unicast connection.