Radio communication systems
US6668030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Dec 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03726
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile telephone system includes a base station which establishes a link with a selected mobile station. The received signal from the mobile station will include a noise component as well as a possible interference component from another mobile station operating at the same frequency in another cell. The base station has a trellis based equalization system which operates on the assumption that the received signal includes components which have a predominantly Gaussian characteristic. A switch controller determines when the interference component (which is non-gaussian) in the received signal becomes a dominant component and operates to switch a spatio-temporal filter into the circuit instead of the trellis based equalization system, to improve the bit error rate performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.