HARQ for advanced channel codes
US10790934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2017 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Aug 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/13
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method (2200) and apparatus for transmitting data using low density parity check, LDPC, encoding and hybrid automatic repeat request-incremental redundancy, HARQ-IR, is disclosed. The method may comprise selecting (2206) a protograph sub-matrix from a family of protograph matrices based on one or more of an initial code rate, an information block size, a maximum retransmission count or a maximum number of redundancy versions, wherein the selected protograph sub-matrix supports HARQ-IR. A parity check matrix may be determined based on the selected protograph sub-matrix (2208). One or more data blocks may be encoded using LDPC based on the parity check matrix (2218) and the LDPC encoded data block may be transmitted (2220) to an LDPC HARQ-IR configured receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.