Patent ID: 11876727
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A transmission method comprising:
reordering cells with a matrix having N columns for block interleaving, the cells being generated using low-density parity check (LDPC) coding;
inputting the cells into a convolutional delay circuit via a first switch after the cells are reordered, the convolutional delay circuit comprising:
M branches; and
first in, first out (FIFO) registers to delay cells, a number of the FIFO registers provided in an M'th branch is M'-1, M' being an integer from 1 to M;
outputting the cells from the convolutional delay circuit via a second switch such that each of the cells is classified in any one of M interleaving units; and
transmitting a radio wave according to the cells output from the convolutional delay circuit via the second switch, wherein
the first switch and the second switch each connect to an identical branch of the M branches, and
the first switch and the second switch each connect to an L+1th branch or a first branch when N cells are input into the convolutional delay circuit while the first switch and the second switch each connect to an Lth branch, L being an integer from 1 to M.