CDMA radio communication system using chip interleaving
US6636723B1 · kind B1 · utility
18Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1999 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Jul 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a CDMA transmission, a quality of each symbol of a frame is held constant by interleaving spread chip, while overhead and interference amounts in other cells are reduced by easing a rate of transmission power control. Further, transmission power is decreased by discontinuing transmission at the time the quality is satisfied, thereby increasing the system capacity. Furthermore, it is possible to achieve more remarkable effect by performing inverse transmission power control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.