Wireless receiver and method employing forward/backward recursive covariance based filter coefficient generation
US7130342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03159
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless receiver and method employs a forward/backward recursive covariance based filter coefficient generation scheme for equalizing a received wireless signal, such as a CDMA signal or other suitable signal. A forward/backward recursive covariance based filter coefficient generating circuit (206) includes a forward recursion portion (300) that receives data representing channel estimates (18) of a communication channel, and data representing an auto-covariance matrix (22). The forward recursion portion (300) produces a set of output values (306) from each iteration stage (400a–400n) of the forward recursion portion (300). The set of output values (306) are stored and a backward recursion portion (302) obtains the set of output values (306) and also receives the data representing the auto-covariance matrix (22), and generates filter coefficients (208) based on this information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.