Soft buffer partition for superposition coding
US9973305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Jun 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When the codeword level interference cancellation (CW-IC) is used at the receiver in conjunction with the superposition coding scheme at the transmitter, it is helpful if the soft buffer at the receiver is reserved not only for the desired transport blocks (TBs) but also for the interfering TBs handled by the CW-IC. In so doing, the soft channel bits of interfering TBs at multiple (re)transmissions can be combined to enhance the success rate of data decoding. A soft buffer partition method for the soft channel bits of the desired and interfering TBs in the superposition coding scheme is proposed. The proposed method has a full flexibility in adjusting the soft buffer sizes for the desired and interfering TBs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.