Abstract:
Disclosed is an apparatus for transmitting a broadcast signal, including: an input formatting module configured to demultiplex an input stream into at least one Data Pipe (DP); a BICM (Bit Interleaved Coding and Modulation) module configured to perform error correction processing on data of the DP; a frame building module configured to map the data of the DP to symbols within a frame; an OFDM generation module configured to generate a transmission signal by inserting a preamble into the frame and performing OFDM modulation; and a transmission parameter control module configured to set at least one transmission parameter and control transmission signal processing of the frame building module and the OFDM generation module.
Abstract:
The present invention provides a broadcast signal transmitting method. The method for transmitting a broadcast signal according to the present invention may comprise: a step of encoding data pipe (DP) data according to a code rate, the step of encoding DP data comprising a sub-step of forward error correction (FEC) encoding the DP data, a sub-step of bit-interleaving the FEC encoded DP data, and a sub-step of mapping the bit-interleaved DP data to constellation according to the code rate; a step of generating at least one signal frame by mapping the encoded DP data; and a step of modulating data of the generated signal frame by an orthogonal frequency division multiplexing (OFDM) scheme and transmitting a broadcast signal including the modulated data of the signal frame.
Abstract:
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, a frame builder for building at least one signal frame included in a super frame, wherein each of signal frames includes the encoded service data and the encoded signaling data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein each of the modulated signal frame includes a preamble having basic transmission parameters, wherein a length of the preamble is extendable and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.
Abstract:
Disclosed is an apparatus for transmitting a broadcast signal, comprising: an input formatting module configured to de-multiplex an input stream into at least one Data Pipe (DP); a BICM module configured to perform error correction processing on data of the at least one DP; a signal frame building module configured to map the data of the DP to symbols within a signal frame; and an OFDM generation module configured to generate a transmission broadcast signal by inserting a preamble into the signal frame and performing OFDM modulation, wherein the OFDM generation module comprises a pilot signal insertion module configured to insert a pilot signal comprising Continual Pilots (CP) and Scattered Pilots (SP) into the transmission broadcast signal, and wherein the CPs are inserted into every symbol of the signal frame, and location and number of the CPs are determined based on a Fast Fourier Transform (FFT) size.
Abstract:
The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, a frame builder for building at least one signal frame including the encoded service data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame, wherein each of the at least one signal frame includes a preamble having signaling data, wherein the signaling data includes size of FFT, information of whether the signal frame including EAC message or not and information relating to the service data of the signal frame.
Abstract:
Provided are a method for operating a device in a wireless communication system, and a device using the method. The method: receives configuration information with respect to a first beam and a second beam from a transmitter; generates beam mismatch information by measuring the first beam and the second beam, on the basis of the configuration information; and transmits the beam mismatch information to the transmitter, wherein the first beam and the second beam satisfy a predetermined condition, and the beam mismatch information indicates a degree of mismatch of the first beam relative to the matching position of the first beam, on the basis of the first reception strength and the first phase value of the first beam and the second reception strength and the second phase value of the second beam.
Abstract:
Provided are a method and an apparatus for transmitting data in a wireless communication system. Logical channels or data streams are divided into two groups according to Qos characteristics and sorted in ascending order of the target MCS. The logical channels or data streams arranged in ascending order of the target MCS are transmitted through a plurality of shared channels scheduled by one DCI. The MCSs of the two groups are one of a first type MCS index indicating both modulation order information and code rate information and a second type MCS index indicating modulation order information, and are limited to the same type of MCS indexes.
Abstract:
The present disclosure relates to relay communication based on a sidelink in a wireless communication system, and a method for operating a first terminal may include performing direct communication with a second terminal based on a sidelink, when a path between the first terminal and the second terminal is predicted to be blocked and another relay device providing a relay service is discovered, transmitting, to the relay device, a first message for requesting the relay service for the first terminal and the second terminal, receiving, from the relay device, a second message for accepting the request for the relay service, and performing relay communication with the second terminal, and the first message may include information on the second terminal.
Abstract:
Positioning is performed based on a signal from a terminal in a wireless communication system. A method of operating a terminal may comprise transmitting a first message requesting addition of a positioning reference signal (PRS) source to a base station, receiving, from the base station, a second message including information related to at least one other terminal to transmit a PRS, receiving at least one PRS transmitted by the at least one other terminal through a resource allocated by the base station, and performing an operation for positioning based on the at least one PRS.
Abstract:
Provided is a method for operating a terminal in a wireless communication system, the method comprising: receiving, from a serving base station, a location request message including at least one of positioning reference signal (PRS) information of a neighbor base station and cell ID information of the neighbor base station; receiving a PRS of the serving base station from the serving base station; receiving a PRS from the neighbor base station based on the received location request message; estimating a location of the terminal based on the PRS received from the serving base station and the PRS received from the neighbor base station; and transmitting the estimated location of the terminal to the serving base station.