| 摘要 |
A method for performing time and cell de-interleaving on an interleaved signal including a plurality of cells is provided. The method includes: providing a first memory for storing the cells, the first memory written and read each time in a unit of one cell group, the cell group including K cells, where K is a positive integer greater than 1; providing a second memory for storing the cells read from the first memory; reading the cells from the first memory, and writing the cells to the second memory according to a writing rule of a plurality of permutation rules, K consecutive cells written to the second memory being from the same cell group; and reading the cells from the second memory according to a reading rule of the permutation rules, to cause the cells read from the second memory to be complete with time de-interleaving and cell de-interleaving. |
| 主权项 |
1. A time and cell de-interleaving circuit, located at a signal receiver of a communications system, performing time de-interleaving and cell de-interleaving on an interleaved signal, the interleaved signal comprising a plurality of cells, the time and cell de-interleaving circuit comprising:
a first memory, storing the cells; a storage control circuit, controlling an access operation of the first memory, the access operation performed in a unit of one cell group, the cell group comprising K units, where K is a positive integer greater than 1; a second memory, storing the cells read from the first memory; and a rule generating unit, generating a plurality of permutation rules, writing the cells read from the first memory to the second memory according to a writing rule of the permutation rules, and reading the cells from the second memory according to a reading rule of the permutation rules, such that the cells read from the second memory are complete with cell de-interleaving and time de-interleaving. |
