摘要:
A method and apparatus for channel decoding in a communication system using a Low-Density Parity-Check (LDPC) code is provided. The method includes demodulating a signal transmitted from a transmitter; determining if there are any punctured parity bits in the demodulated signal; determining positions of the punctured parity bits by estimating information about a puncturing pattern when there are punctured parity bits; and decoding data using the positions of the punctured parity bits, wherein the information about the puncturing pattern includes a puncturing pattern obtained by considering a modulation scheme.
摘要:
A method for encoding a channel in a communication system using a Low-Density Parity-Check (LDPC) code is provided. The method includes determining a number of parity bits for puncturing; dividing the parity bits at predetermined intervals, and determining a number of puncturing parity bits, which are subjected to puncturing within the predetermined intervals; determining a modulation scheme; determining positions of puncturing parity bits corresponding to the determined number of the puncturing parity bits within the predetermined intervals according to the modulation scheme; repeatedly performing puncturing on puncturing parity bits corresponding to the determined positions at the predetermined intervals; and transmitting remaining bits except for the punctured bits according to the modulation scheme.
摘要:
The invention is directed to a method performed by a user equipment, UE, for receiving data in a communication system, the method comprising: identifying a hybrid automatic repeat request, HARQ, process identifier, ID, using a number of HARQ processes, interval information, and time information, wherein the number of HARQ processes is for a periodic resource allocation and the interval information is a periodic resource allocation interval, and wherein the time information is based on a system frame number, and receiving data for the HARQ process ID, in a first transmission, based on the periodic resource allocation and the interval information.
摘要:
The invention is directed to a method performed by a user equipment, UE, for receiving data in a communication system, the method comprising: identifying a hybrid automatic repeat request, HARQ, process identifier, ID, using a number of HARQ processes, interval information, and time information, wherein the number of HARQ processes is for a periodic resource allocation and the interval information is a periodic resource allocation interval, and wherein the time information is based on a system frame number, and receiving data for the HARQ process ID, in a first transmission, based on the periodic resource allocation and the interval information.
摘要:
An apparatus and method for configuring a broadcast service data in a digital broadcasting communication system are provided. The method includes mapping a first zone, corresponding to broadcast service data of a first type, and a second zone, corresponding to broadcast service data of a second type, in a frame individually. Preferably, the broadcast service data included in the first zone and the second zone is sliced into sub-slices according to a different number of service slicings for each zone.
摘要:
The invention provides a method for transmitting a channel quality indicator, CQI, by a mobile station in a wireless communication system, the method comprising: receiving a reference signal from a base station; obtaining a sub-band CQI for each of at least one sub-band based on the reference signal, in case that a report for the sub-band CQI is configured by the base station; and transmitting the sub-band CQI for each of at least one sub-band, wherein the at least one sub-band is configured for CQI report, between the base station and the mobile station.
摘要:
An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.