Convolutional code rate matching method and wireless communication apparatus
US11876538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Jul 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0069
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A convolutional code rate matching method and a communication apparatus are provided. A puncturing pattern of a second codeword at a second code rate is obtained based on a puncturing pattern of a first codeword at a first code rate. A second puncturing location set of the second codeword is a subset of a first puncturing location set of the first codeword. When a transmit device decreases a code rate from the first code rate to the second code rate, a redundant bit is sent at a location of a complementary set of the second puncturing location set relative to the first puncturing location set. Compared with the first puncturing location set, the second puncturing location set may obtain more incremental redundant bits, to decrease a channel encoding rate. This can improve decoding performance of a convolutional code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.