# US 2021/0242983 A1 · Transmission apparatus, reception apparatus, communication method, and integrated circuit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242983 A1 - Document ID: US20210242983A1 - Status: Published application - Kind: A1 - Application number: 17/237,083 - Filed: 2021-04-22 - Published: 2021-08-05 - Earliest claimed: 2019-01-14 - Assignees: Sharp Kabushiki Kaisha; FG Innovation Company Limited - Applicants: Sharp Kabushiki Kaisha; FG Innovation Company Limited - Inventors: Tomoki YOSHIMURA; Shoichi SUZUKI; Tatsushi AIBA; Liqing LIU; Wataru OUCHI; Takashi HAYASHI; Kimihiko IMAMURA - Web page: https://patentgrep.com/patent/US20210242983A1 ## CPC - H04L 1/0061: {Error detection codes} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 1/00: Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)} - H04L 1/0066: {Parallel concatenated codes} - H04L 1/0071: {Use of interleaving (interleaving per se H03M13/27)} - H04L 1/0076: {Distributed coding, e.g. network coding, involving channel coding (coding in both space and time H04L1/0618; cooperative diversity H04B7/022)} - H04L 5/0042: {Intra-user or intra-terminal allocation} - H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence) - H04L 27/2647: {Arrangements specific to the receiver only (equalisation H04L27/01)} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A terminal apparatus includes a coding unit configured to divide a transport block into one or more code blocks and generate coded bit(s) by coding the one or more code blocks; and a transmitter configured to transmit the coded bit(s) by using a channel, wherein multiplex bit(s) are given based on at least coupling of the coded bit(s) generated by coding of the one or more code blocks, the coding unit maps the multiplex bit(s) to a matrix in a first-axis prioritized manner and reads the multiplex bit(s) from the matrix in the first-axis prioritized manner or in a second-axis prioritized manner, and whether the first axis or the second axis is prioritized in a case that the multiplex bit(s) are read from the matrix is given based on at least whether a signal waveform applied to a prescribed channel is an OFDM. ## Claims ### Claim 1 A transmission apparatus comprising: code block segmentation circuitry configured to divide information bits including a transport block and a Cyclic Redundancy Check (CRC) into a plurality of code blocks with a first size in a case that a second size of the information bits is larger than a third size; and encoding circuitry configured to generate encoded bits by applying a Low Density Parity Check (LDPC) coding for each of the plurality of code blocks, wherein the third size is given based on a generation method for a matrix for the LDPC coding, the third size is a first value in a case that the generation method for the matrix for the LDPC coding is a first generation method, and the third size is a second value which is different from the first value in a case that the generation method for the matrix for the LDPC coding is a second generation method which is different from the first generation method. ### Claim 2 (depends on 1) The transmission apparatus according to claim 1, wherein a second CRC is added to each of the plurality of code blocks. ### Claim 3 (depends on 1) The transmission apparatus according to claim 1, wherein the generation method for the LDPC coding is given based on information included in a control channel. ### Claim 4 (depends on 1) The transmission apparatus according to claim 1, wherein, the encoded bits are generated using the matrix for the LDPC coding. ### Claim 5 (depends on 1) The transmission apparatus according to claim 1, wherein, the encoded bits are generated using an equation where the matrix for the LDPC coding multiplied by a second matrix is equal to 0. ### Claim 6 A reception apparatus comprising: decoding circuitry configured to decode encoded bits into a plurality of code blocks and configured to output information bits including a transport block and a Cyclic Redundancy Check (CRC), the encoded bits being encoded with a Low Density Parity Check (LPDC) coding, wherein the information bits including the transport block and the CRC are divided into the plurality of code blocks with a first size in a case that a second size of the information bits is larger than a third size, the third size is given based on a generation method for a matrix for the LDPC coding, the third size is a first value in a case that the generation method for the matrix for the LDPC coding is a first generation method, and the third size is a second value which is different from the first value in a case that the generation method for the matrix for the LDPC coding is a second generation method which is different from the first generation method. ### Claim 7 (depends on 6) The reception apparatus according to claim 6, wherein a second CRC is added to each of the plurality of code blocks. ### Claim 8 (depends on 6) The reception apparatus according to claim 6, wherein the generation method for the LDPC coding is given based on information included in a control channel. ### Claim 9 (depends on 6) The transmission apparatus according to claim 6, wherein, the encoded bits are generated using the matrix for the LDPC coding. ### Claim 10 (depends on 6) The reception apparatus according to claim 6, wherein, the encoded bits are generated using an equation where the matrix for the LDPC coding multiplied by a second matrix is equal to 0. ### Claim 11 A method for a transmission apparatus, the method comprising: dividing information bits including a transport block and a Cyclic Redundancy Check (CRC) into a plurality of code blocks with a first size in a case that a second size of the information bits is larger than a third size; and generating encoded bits by applying a Low Density Parity Check (LDPC) coding for each of the plurality of code blocks, wherein the third size is given based on a generation method for a matrix for the LDPC coding, the third size is a first value in a case that the generation method for the matrix for the LDPC coding is a first generation method, and the third size is a second value which is different from the first value in a case that the generation method for the matrix for the LDPC coding is a second generation method which is different from the first generation method. ### Claim 12 A method for a reception apparatus, the method comprising: decoding encoded bits into a plurality of code blocks; and outputting information bits including a transport block and a Cyclic Redundancy Check (CRC), the encoded bits being encoded with a Low Density Parity Check (LPDC) coding, wherein the information bits including the transport block and the CRC are divided into the plurality of code blocks with a first size in a case that a second size of the information bits is larger than a third size, the third size is given based on a generation method for a matrix for the LDPC coding, the third size is a first value in a case that the generation method for the matrix for the LDPC coding is a first generation method, and the third size is a second value which is different from the first value in a case that the generation method for the matrix for the LDPC coding is a second generation method which is different from the first generation method.