Traditional streaming sequentially downloads content fragments one by one from one CDN. The disclosed streaming method concurrently downloads content fragments from multiple CDNs. It first creates a sequence of bundles of fragments, and then downloads a subsequent bundle by spreading requests to download the fragments within the bundle to multiple CDNs simultaneously with each CDN acting as a channel to download a different fragment. Depending on business needs, various request dispatching strategies can be deployed. When there is a volume based pricing contract with a CDN, a dispatch strategy is to send more requests to the CDN in order to reach contract volume therefore reduce unit cost. Another strategy is to send the request for the earliest fragment to the fastest CDN in order to reduce latency and possibility of buffer underrun. Fault tolerance can be provided by re-routing a request failed at a CDN to another CDN.

A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

A broadcast reception device receives a digital broadcast service capable of executing an application cooperating with a broadcast program, and is provided with: a broadcast reception unit which receives broadcast waves of the digital broadcast service; a separation unit which separates video information relating to the broadcast program and application-related information from the received broadcast waves; a broadcast video decoding unit which decodes the video information relating to the broadcast program; an application acquisition unit which acquires an application on the basis of location information included in the application-related information; an application execution unit which executes the acquired application and acquires additional data from a server device; a video conversion unit which converts broadcast program video decoded by the broadcast decoding unit into high-quality video having a higher quality than the video using the acquired additional data; and a display unit which is able to display the high-quality video.

A system for recovering channel bonded program streams may include filters and a collator. The filters may be configured to receive data streams that include multiple chunks of transport stream packets, and marker information items that are indicative of boundaries of the chunks, over multiple bonded channels, and to individually filter the data streams based at least on a utilized program identifier. The collator may be configured to collate the filtered data streams based at least on the marker information items to recover a program stream corresponding to the utilized program identifier. In one or more implementations, the filters may replace, or augment, the marker information items with marker packets that include a program identifier that is not being used for transmitted programs and/or that is reserved for marker packets. The collator may collate the filtered data streams based at least on the marker packets.

In a communication network, a client has a plurality of network interfaces connecting it to a server able to deliver data streams on multicast groups. The client obtains a first request for subscription to a multicast group allowing to obtain a data stream. The client replaces the first subscription request with a plurality of second requests for subscription to a plurality of multicast subgroups able to supply data sub-streams which, once combined, allow to reconstruct the data stream. Each second subscription request is transmitted over a network interface with which the request was associated, so as to favour use of each available network interface. The client receives, over each network interface, a data sub-stream corresponding to the second subscription request transmitted over said network interface and reconstructs the data stream from the data sub-streams.

Methods and devices for dynamically designated first and second subsets of a plurality of frequency channels as upstream and downstream channels, respectively, for performing wired communications using virtual segmentation between a network controller and an endpoint device. performing virtual segmentation to service an endpoint device. Communications are performed between the network controller and the endpoint device through a wired communication medium using the upstream and downstream channels. The first subset and second subsets of the plurality of channels are designated as upstream channels and downstream channels, respectively, based at least in part on one or both of upstream and downstream channel demand and channel availability.

Preserving transmission properties of real-time scenes in an environment when an increasing number of users join a session may be provided. A plurality of metrics associated with transmission of scenes having a Coarse Grain (CG) layer and a Fine Grain (FG) layer may be determined. Then a current client, based on a first one of a plurality of metrics, may be revoked. One of the following may then be performed: blocking a new client based on a second one of a plurality of metrics; and allowing the new client based on the second one of a plurality of metrics.

A transmitting system and a method of transmitting digital broadcast signal are provided. The method of transmitting digital broadcasting signal in a transmitter includes multiplexing mobile data and main data, transmitting a transmission frame including the multiplexed mobile and main data, where a parade of data group is transmitted during slots, where each slot includes specified number of mobile data packets, a first scalable number of mobile data packets, and a second scalable number of main data packets, where the data group including a plurality of regions and the fifth region of the plurality of regions includes the first scalable number of mobile data packets, and where the data group is assigned to one of the slots in such a manner that slots of consecutive slot number carry data groups of inconsecutive group number.

Aspects of the subject disclosure may include, for example, obtaining, over a first mobile network, first media content from a media content server, and detecting a travel route associated with the communication device. Further embodiments can include identifying a group of mobile networks associated with the travel route in which the group of mobile networks comprise the first mobile network. Additional embodiments can include determining a network condition associated with a second mobile network of the group of mobile networks, and identifying a portion of the travel route associated with the network condition. Also, embodiments can include adjusting the obtaining of the first media content from the media content server according to the network condition. Other embodiments are disclosed.

A system comprising a plurality of peer caches associated with a corresponding plurality of content owners; shared ledger logic having a channel for each content owner of a plurality of content owners, the shared ledger logic to maintain a shared ledger data structure and to perform the operations of: in response to receipt of a first content title, responsively recording a first ledger entry for the first content title which is visible to a first content owner which owns the first content title; receiving an encryption key from the content owner, wherein the first content title comprises an encrypted content title encrypted with the key; storing the encrypted content title on one or more network storage devices; and when the encrypted content title reaches an edge cache, using the key to decrypt the encrypted content title and updating the first ledger entry to identify the edge cache.