Cross QAM modulation-based symbol mapping method and apparatus in a mobile communication system
US7933352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2008 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Dec 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0086
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for determining a bit pattern of a symbol in a wireless communication system using a cross modulation scheme. The method includes generating symbols with the cross modulation scheme, classifying positions of coding symbols by reliabilities of at least 3 classes according to an average bit error rate BER(ave) of symbols generated with the cross modulation scheme and a bit error rate BER based on transmission positions of the coding symbols in a modulation symbol during transmission of a packet with the cross modulation scheme, and determining a bit pattern such that higher-priority symbols are inserted into higher-reliability positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.