Data transmission method and apparatus
A disclosure of the present specification provides a method for transmitting data by a transmitter. The method may comprise the steps of: when a transport block (TB) is divided into n data blocks, adding additional information after each of the n data blocks; and adding a cyclic redundancy check (CRC) after the last additional information. Here, the CRC may be generated on the basis of the n data blocks, and the n pieces of additional information added after each of data blocks.
1. An encoding device comprising:
at least one processor; and
at least one memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
generating, based on data, an information sequence which is input to a polar code; and
performing channel-encoding for the information sequence based on the polar code,
wherein the information sequence includes data blocks 0 to N−1 related to the data and parity blocks 0 to N−1 in the order of data block 0 , parity block 0 , data block 1 , parity block 1 , . . . , data block N−1, parity block N−1, where N is an integer larger than 1, and
wherein each parity block n of the parity blocks 0 to N−1 is generated based on bits included in data blocks 0 to n−1 and bits included in data block n only, among the data blocks 0 to N−1.
2. The encoding device according to claim 1 ,
wherein each parity block n of the parity blocks 0 to N−1 includes at least one cyclic redundancy check (CRC) bit.
3. The encoding device according to claim 1 ,
wherein each parity block n of the parity blocks 0 to N−1 is a single parity bit.
4. The encoding device according to claim 3 ,
wherein the information sequence further includes a cyclic redundancy check (CRC) block at an end of the information sequence.
5. The encoding according to claim 1 ,
wherein each parity block n of the parity blocks 0 to N−1 includes no parity bit which is generated based on parity blocks 0 to n−1, parity blocks n+1 to N−1, and data blocks n+1 to N−1.
6. A non-transitory computer readable storage medium storing at least one computer program comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations for an encoding device, the operations comprising:
generating, based on data, an information sequence which is input to a polar code; and
performing channel-encoding for the information sequence based on the polar code,
wherein the information sequence includes data blocks 0 to N−1 related to the data and parity blocks 0 to N−1 in the order of data block 0 , parity block 0 , data block 1 , parity block 1 , . . . , data block N−1, parity block N−1, where N is an integer larger than 1, and
wherein each parity block n of the parity blocks 0 to N−1 is generated based on bits included in data blocks 0 to n−1 and bits included in data block n only, among the data blocks 0 to N−1.
7. The non-transitory computer readable storage medium according to claim 6 ,
wherein each parity block n of the parity blocks 0 to N−1 includes at least one cyclic redundancy check (CRC) bit.
8. The non-transitory computer readable storage medium according to claim 6 ,
wherein each parity block n of the parity blocks 0 to N−1 is a single parity bit.
9. The non-transitory computer readable storage medium according to claim 8 ,
wherein the information sequence further includes a cyclic redundancy check (CRC) block at an end of the information sequence.
10. The non-transitory computer readable storage medium according to claim 6 ,
wherein each parity block n of the parity blocks 0 to N−1 includes no parity bit which is generated based on parity blocks 0 to n−1, parity blocks n+1 to N−1, and data blocks n+1 to N−1.
11. A decoding device comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving an encoded information sequence related to data; and
performing decoding on the encoded information sequence based on a polar code to obtain an information sequence,
wherein the information sequence includes data blocks 0 to N−1 related to the data and parity blocks 0 to N−1 in the order of data block 0 , parity block 0 , data block 1 , parity block 1 , . . . , data block N−1, parity block N−1, where N is an integer larger than 1, and
wherein each parity block n of the parity blocks 0 to N−1 is related to bits included in data blocks 0 to n−1 and bits included in data block n only, among the data blocks 0 to N−1.
12. The decoding device according to claim 11 , comprising:
wherein each parity block n of the parity blocks 0 to N−1 includes at least one cyclic redundancy check (CRC) bit.
13. The decoding device according to claim 11 ,
wherein each parity block n of the parity blocks 0 to N−1 is a single parity bit.
14. The decoding device according to claim 13 ,
wherein the information sequence further includes a cyclic redundancy check (CRC) block at an end of the information sequence.
15. The decoding device according to claim 11 ,
wherein each parity block n of the parity blocks 0 to N−1 includes no parity bit which is related to parity blocks 0 to n−1, parity blocks n+1 to N−1, and data blocks n+1 to N−1.
16. A non-transitory computer readable storage medium storing at least one computer program comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations for a decoding device, the operations comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving an encoded information sequence related to data; and
performing decoding on the encoded information sequence based on a polar code to obtain an information sequence,
wherein the information sequence includes data blocks 0 to N−1 related to the data and parity blocks 0 to N−1 in the order of data block 0 , parity block 0 , data block 1 , parity block 1 , . . . , data block N−1, parity block N−1, where N is an integer larger than 1, and
wherein each parity block n of the parity blocks 0 to N−1 is related to bits included in data blocks 0 to n−1 and bits included in data block n only, among the data blocks 0 to N−1.
17. The non-transitory computer readable storage medium according to claim 16 , comprising:
wherein each parity block n of the parity blocks 0 to N−1 includes at least one cyclic redundancy check (CRC) bit.
18. The non-transitory computer readable storage medium according to claim 16 ,
wherein each parity block n of the parity blocks 0 to N−1 is a single parity bit.
19. The non-transitory computer readable storage medium according to claim 18 ,
wherein the information sequence further includes a cyclic redundancy check (CRC) block at an end of the information sequence.
20. The non-transitory computer readable storage medium according to claim 16 ,
wherein each parity block n of the parity blocks 0 to N−1 includes no parity bit which is related to parity blocks 0 to n−1, parity blocks n+1 to N−1, and data blocks n+1 to N−1.