Abstract:
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding data of PLPs (Physical Layer Pips); building at least one signal frame by mapping the encoded data of the PLPs; and modulating data in the built signal frame by OFDM (Orthogonal Frequency Division Multiplexing) method and transmitting the broadcast signals having the modulated data.
Abstract:
The disclosed method for processing a digital broadcast signal comprises encoding signaling information for mobile service data of the mobile service, the signaling information including first signaling data which includes transmission parameters and second signaling data which contains cross layer information between a physical layer and a upper layer, formatting a data group including known data, the first signal data and the mobile service data and transmitting the digital broadcast signal including data in the data group, wherein the mobile service in the digital broadcast signal is transmitted via first transmission mode or second transmission mode, wherein the slot is a basic time period for multiplexing of the mobile service data and main service data according to the first or second transmission mode, wherein the first signaling data includes slot indicating information identifying whether the slot is a slot for the first transmission mode or a slot for the second transmission mode.
Abstract:
Provided are a method by which a terminal transmits a physical uplink shared channel in a wireless communication system, and an apparatus. The terminal receives a logical channel MCS-related value for each of a plurality of logical channels and a physical channel MCS value for each of a plurality of PUSCHs. The terminal uses the logical channel MCS-related value and the physical channel MCS value so as to transmit each of the plurality of logical channels only through a PUSCH having a physical channel MCS value not exceeding a corresponding logical channel MCS value.
Abstract:
A multi-transmission time interval (TTI) multi-modulation and coding scheme (MCS) scheduling downlink control information (DCI) transmission method and device is provided. A user equipment (UE) receives one piece of downlink control information for scheduling of both a first shared channel and a second shared channel. The downlink control information includes a reference modulation and coding scheme (MCS) index and a first offset value for the reference MCS index. The UE communicates with the network through the first shared channel to which a first MCS index is applied, and after communicating through the first shared channel, communicates with the network through the second shared channel to which a second MCS index greater than the first MCS index is applied. The first MCS index is based on the reference MCS index, and the second MCS index is based on the reference MCS index and the first offset value.
Abstract:
Provided is a method performed by a UE in a wireless communication system including receiving at least one synchronization signal from a base station (BS), receiving system information from the BS, receiving a radio resource control (RRC) message from the BS, wherein the RRC message includes information on a number of data allocation offset index group candidates related to a data allocation offset, receiving downlink control Information (DCI) from the BS, wherein the DCI includes information on a data allocation offset index related to the data allocation offset.
Abstract:
A transmitting system, receiving system, and a method of processing broadcast signals are disclosed. The method for processing a broadcast signal in a broadcast receiver comprises receiving a DTV signal including a data group, the data group including mobile service data, segmented known data sequences, long known data sequences and transmission parameter data, compensating carrier frequency offset of the DTV signal and channel-equalizing the carrier frequency offset compensated DTV signal using at least one of the long known data sequences and segmented known data sequences in the data group of the DTV signal, wherein the channel-equalizing includes performing a Error Correction (FEC) decoding on data located between the segmented known data sequences, and. estimating Channel Impulse Response (CIR) using the FEC decoded data as known data.
Abstract:
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals comprises encoding DP (data pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building at least one signal frame including the time interleaved DP data, modulating data in the built at least one signal frame by an OFDM scheme and transmitting the broadcast signals having the modulated data, wherein the at least one signal frame includes emergency alert information.
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:
The present invention provides a method for transmitting a broadcast signal. The method for transmitting the broadcast signal according to the present invention may comprise the steps of: formatting input streams into multiple data pipes (DPs); encoding data of the multiple DPs according to a code rate for each DP; generating at least one signal frame by mapping the encoded data of the multiple DPs; and modulating data of the generated signal frame in an orthogonal frequency division multiplexing (OFDM) scheme, and transmitting the broadcast signal including data of the modulated signal frame.
Abstract:
The present invention provides a method of transmitting broadcast signals. The method includes, formatting input streams into Data Pipe, DP, data; Low-Density Parity-Check, LDPC, encoding the DP data according to a code rate; bit interleaving the LDPC encoded DP data; mapping the bit interleaved DP data onto constellations according to one of QAM (Quadrature Amplitude Modulation), NUQ (Non-Uniform QAM) or NUC (Non-Uniform Constellation); Multi-Input Multi-Output, MIMO, encoding the mapped DP data by using a MIMO encoding matrix having a MIMO encoding parameter; building at least one signal frame by mapping the MIMO encoded DP data; and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.