Device and method for data encoding and frequency diversity in mobile communications system
US6310923A · kind A · utility
22Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A code set generating method in a mobile communications system having Nf frequency channels and Np phase channels. In the method, a code length Nc is obtained by Nf.times.Np, a minimum distance Nd between codewords in a code set and frequency diversity Nfd are determined, code sets are detected according to Nc, Nd, and Nfd, a code set is selected, which shows such a Hamming distance distribution among code words that minimizes demodulation errors from the detected code sets, and the code set is stored in a mapping table of a demodulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.