Abstract:
Disclosed are an OFDM transmission method and apparatus. In the present invention, channel bonding information includes at least one of information indicating whether or not a channel through which the transport frame is transmitted is a bonded channel, information indicating how many channels form the bonded channel, and information about a transmission frequency of each of the bonded channels.
Abstract:
There are provided a method and apparatus for controlling an electronic device. The apparatus for controlling an electronic device includes a marker recognition unit configured to recognize the marker of the electronic device and a control unit configured to perform communication with the electronic device based on the marker and control the electronic device using a Graphic User Interface (GUI) program received from the electronic device.
Abstract:
A method for transmitting broadcast and data streams in an HFC-based cable network includes a first transmission step of a broadcast transmission apparatus sending broadcast and data service streams in an IP-based stream or RF signal form through an optical section up to a cell node that is a contact point between the optical section and a cable section of a cable network and a second transmission step of the cell node converting the broadcast and data service streams into one of RF signal, IP-based stream, and RF/IP convergence service stream forms depending on a service type of a subscriber terminal and sending the converted broadcast and data service streams to the subscriber terminal through the cable section.
Abstract:
Disclosed are a method for transmitting and receiving data and an apparatus thereof, and more particularly, a method for transmitting and receiving data and an apparatus thereof in an orthogonal frequency division multiplexing (OFDM) system. The method for transmitting data in an OFDM system according to the present invention includes encoding and modulating data to be transmitted, configuring the modulated data by a frame constituted by N (an integer larger than 0) OFDM symbols, and transmitting the configured frame, in which the frame includes a first OFDM symbol including a pilot symbol and a second OFDM symbol including lower-order modulated than the modulated data.
Abstract:
Disclosed are a method and an apparatus for a scalable broadcast. The method includes scalably dividing a broadcast frequency band into segments, scalably dividing a video image into segments, and linking the segment of the broadcast frequency band to the scalably divided video image, and broadcasting the linked segments to at least one receiving apparatus.
Abstract:
A transmitting and receiving apparatus and method for separating multiple broadcast signals from each other in a terrestrial cloud broadcast system are provided. A terrestrial cloud broadcast signal transmitting apparatus may include a plurality of transmitters for transmitting a plurality of terrestrial cloud broadcast signals, wherein each of the plurality of transmitters includes, an encoder encoding input data to generate a code word and a scrambler scrambling the generated code word using a scramble sequence uniquely allocated for each transmitter so that the plurality of terrestrial cloud broadcast signals are distinguished from each other.
Abstract:
A method of a base station may comprise: transmitting, to a terminal, a higher layer message including a first table mapping between cell groups and indicators each indicating the cell groups; transmitting, to the terminal, multi-cell scheduling control information; transmitting, to the terminal, data through multiple cells based on the higher layer message and the multi-cell scheduling control information; and receiving, from the terminal, a response message for the data transmitted through the multiple cells based on the multi-cell scheduling control information, wherein the multi-cell scheduling control information includes first information indicating one cell group at least among the cell groups and uplink resource allocation information.
Abstract:
Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.
Abstract:
An operation method of a terminal in a communication system may comprise: performing a monitoring operation to receive BWP configuration information for common downlink communication; in response to receiving the BWP configuration information from the base station, configuring a common frequency region for the common downlink communication based on the BWP configuration information; receiving DCI including scheduling information of the common downlink communication from the base station; and performing the common downlink communication with the base station in the common frequency region by using a frequency resource indicated by the scheduling information, wherein the common downlink communication is communication between the base station and a plurality of terminals including the terminal.
Abstract:
An operation method of a terminal in a communication system may comprise: receiving, from a base station, a higher layer message including information indicating that first DCI including a HARQ feedback enabled/disabled indicator is configured; receiving the first DCI from the base station; receiving first downlink data from the base station based on first scheduling information included in the first DCI; and determining whether to transmit a first HARQ response for the first downlink data based on the HARQ feedback enabled/disabled indicator included in the first DCI.