Techniques are provided for managing the transfer of data over a network. Multiple channels may be established for accommodating various categories of data transfers, and the amount of network bandwidth allocated to each channel may be dynamically adjusted to accommodate any of numerous performance objectives.

Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that can improve transmission efficiency. An encoded signal is generated based on realtime data indicated by a waveform L using a predetermined fixed bit rate as a maximum code amount Sx and the encoded signal into which non-realtime data with an insufficient code amount is inserted is transmitted at the fixed bit rate, as indicated by a range Z12, when a code amount of the generated encoded signal is insufficient for the maximum code amount Sx. The present technology can be applied to broadcasting communication.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that can improve transmission efficiency. An encoded signal is generated based on realtime data indicated by a waveform L using a predetermined fixed bit rate as a maximum code amount Sx and the encoded signal into which non-realtime data with an insufficient code amount is inserted is transmitted at the fixed bit rate, as indicated by a range Z12, when a code amount of the generated encoded signal is insufficient for the maximum code amount Sx. The present technology can be applied to broadcasting communication.

To secure easiness of component selection at a reception side. A transmission stream is generated in which a first transmission packet including a predetermined component and a second transmission packet including signaling information related to the predetermined component are multiplexed in a time division manner.

To secure easiness of component selection at a reception side. A transmission stream is generated in which a first transmission packet including a predetermined component and a second transmission packet including signaling information related to the predetermined component are multiplexed in a time division manner.

Disclosed is a reception device configured to acquire second metadata including a flag, the flag indicating whether or not there is a component stream transmitted from a server via the Internet for a service. The reception device is also configured to acquire first metadata based on the second metadata, the first metadata including information related to a component stream for the service transmitted in a broadcast signal using an Internet Protocol (IP) transmission scheme. Finally, the reception device is configured to access the component stream transmitted in the broadcast signal based on the first metadata, and control reproduction of the component stream transmitted in the broadcast signal.

Methods and systems are provided for increasing bandwidth efficiency in satellite communications. In some embodiments, a satellite communications method is provided that comprises receiving, at a gateway ground station and as part of a downlink transmission from a satellite, a combined source signal comprising a plurality of source signals with an overlapping bandwidth, and extracting, from the downlink transmission, information specifying at least one predetermined modulation method. The method also includes generating, based on the at least one predetermined modulation method and from the combined source signal, a plurality of estimated waveforms corresponding to the plurality of source signals, separating, by signal cancellation and using the plurality of estimated waveforms, the plurality of source signals from the combined source signal, and routing, with a terrestrial network, the plurality of source signals to one or more user ground terminals.

The present technology relates to a distribution device, a distribution method, a reception device, a reception method, a program, and a content distribution system that enable signaling of an ROI identifier of a video distributed by at least one of broadcast distribution or net distribution.

A distribution device according to a first aspect of the present technology includes a segment filing unit configured to make a video stream of each of areas obtained by imaging an imaging range divided into a plurality of the areas into a segment file, a distribution unit configured to supply the segment file of the video stream of each of the areas to a reception side by at least one of net distribution or broadcast distribution, and a notification unit configured to notify, in a case where an ROI including one or more of the areas is set to the imaging range, the reception side of an ROI identifier for identifying the belonging ROI as attribute information related to the segment file corresponding to the area included in the ROI. The present technology can be applied to streaming distribution using DASH.