Computationally parsimonious forward link receiver for DS-CDMA systems and method for same
US6470044B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1999 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jan 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70701
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver has been provided, with a pre-whitening filter, to improve the probability of recovering a received signal in the presence of colored noise. Colored noise can be multipath or transmission signals to other receivers in the same spectral bandpass. The receiver system uses colored noise statistics to provide an optimal estimation in the despreading of the transmitted information. Auxiliary systems in the receiver cancel the pilot, or system acquisition symbols, improving even further the probability or recovering information in the despreading of transmitted signal. A method of pre-whitening a signal received in the presence of colored noise is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.