Interference cancellation in a spread spectrum communication system
US6985515B2 · kind B2 · utility
1Cited by
49References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2004 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Aug 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70701
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A code division multiple access communication system transmits a pilot and traffic signal over a shared spectrum. The pilot and traffic signal have an associated code and are received over the shared spectrum. The received signals are sampled and the samples are delayed to produce a window. A weighted value for each despread pilot code window sample is determined using an adaptive algorithm. Each window sample is despread with a traffic code. Each despread traffic code window sample is weighted according to a weight corresponding to its respective pilot code sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.