摘要:
A method for transmitting data in a communication system using a Low Density Parity Check (LDPC) matrix. The method includes generating an LDPC codeword by encoding information data bits, interleaving the LDPC codeword, mapping the interleaved LDPC codeword to a modulation signal, and generating a mapped signal by mapping the LDPC codeword bits separately to a bit corresponding to a real part and a bit corresponding to an imaginary part of said modulation signal, among bits constituting the modulation signal, generating a modulation signal by high-order-modulating the mapped signal and Radio Frequency (RF)-processing the modulation signal, and transmitting the RF-processed signal via a transmission antenna.
摘要:
A method for a channel decoding in a communication system using a Low-Density Parity-Check (LDPC) code, the method comprising: demodulating a signal transmitted from a transmitter; determining a position of a shortened bit by estimating information on a shortening pattern of an LDPC code from the demodulated signal from the demodulating step; and decoding data using the determined position of the shortened bit. Hereby a method for channel decoding supporting various code lengths from a given LDPC code in the DVB-S2 system is provided.
摘要:
The present disclosure relates to a method performed by a base station of a wireless communication system and to an apparatus for performing same. The method may comprise the steps of: confirming that a first bandwidth, which is smaller than a preconfigured bandwidth, is used in a frequency band operated by the base station; and transmitting, to a terminal, configuration information for CORESET having an index of 0, on the basis of the first bandwidth, wherein the CORESET having an index of 0 may include a plurality of resource element groups (REGs) to which a control channel element (CCE) is mapped, and the CCE may be mapped to the plurality of REGs according to one of non-interleaved mapping and interleaved mapping using the number of resource blocks (RBs) included in the first bandwidth.
摘要:
The present disclosure relates to a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for transmitting information in a wireless communication system, according to an embodiment of the present disclosure, includes a CQI table configuration method, an MCS table configuration method, and an LBRM, PT-RS, and processing time determination method related thereto. A method by which a user equipment (UE) receives a phase tracking reference signal (PT-RS) in a wireless communication system, according to an embodiment of the present disclosure, comprises the step of confirming whether both a first parameter related to the time density of a PT-RS and a second parameter related to the frequency density of the PT-RS are set by the UE through upper layer signaling.
摘要:
The present invention related to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present invention relates to a method and an apparatus for encoding a channel in a communication or broadcasting system supporting parity-check matrices having various sizes are provided. The method for a channel coding performed by an apparatus in a wireless communication system, the method comprising: identifying, using at least one processor of the apparatus, a number of input bits; identifying, using the at least one processor of the apparatus, a number of code blocks based on the number of the input bits and a maximum number of information bits corresponding to a largest parity-check matrix; identifying, using the at least one processor of the apparatus, a size of a code block based on the number of code blocks; identifying, using the at least one processor of the apparatus, the code block based on at least a part of the input bits and the size of the code block; identifying, using the at least one processor of the apparatus, a parity-check matrix based on the size of the code block; encoding, using an encoder of the apparatus, the code block based at least in part on the parity-check matrix; and transmitting, using a transceiver of the apparatus, at least a part of the encoded code block.
摘要:
Disclosed are a communication technique which merges, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. A method for a terminal of a communication system may comprise the steps of: receiving, from a base station, information indicating LBRM; identifying a parameter related to the maximum number of layers for one transport block; identifying the maximum number of layers for the one transport block on the basis of the parameter; identifying a transport block size to which the LBRM is applied, on the basis of the determined maximum number of layers; and transmitting or receiving data to or from the base station on the basis of the transport block size.
摘要:
A method of channel encoding in a communication system or a broadcasting system and an apparatus for performing the method are provided. The method includes identifying a block size, identifying a parity check matrix corresponding to the block size based on a base matrix, and performing an encoding procedure based on the parity check matrix, wherein a column index corresponds to a non-zero element in a row of the base matrix, and a plurality of rows of the base matrix have values as column indices according to a mathematical expression.
摘要:
The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes performing radio resource control (RRC) signaling with a base station, determining a code rate based on an RRC configuration according to the RRC signaling, and determining a size of data using the code rate.