Selective quantization of decision metrics in wireless communication
US8867673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Apr 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/067
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for quantizing decision metrics (e.g., log likelihood ratios (LLRs)) for reduction of memory requirements in wireless communication is described. The method includes selecting a quantization algorithm. The quantization algorithm may be selected as a function of a characteristic of a decision metric representative of a transport block received over a communication channel, a characteristic of the transport block, or a condition of the communication channel. The method further includes quantizing the decision metric using the selected quantization algorithm to generate at least one quantized decision metric representative of the transport block. The method further includes storing the quantized decision metric and an indicia of the selected quantization algorithm to enable recovery of the decision metric representative of the transport block prior to decoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.