Method and apparatus for efficient estimation of interference in a wireless receiver
US8295417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Aug 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/712
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for determining an impairment covariance matrix for use in an interference-suppressing CDMA receiver are disclosed. In several of the disclosed embodiments, precise information regarding signal propagation delays is not needed. An exemplary method includes the selection of a plurality of processing delays for processing a received CDMA signal. Net channel coefficients for the processing delays are estimated and used to calculate an impairment covariance matrix. The impairment covariance matrix is calculated as a function of the estimated net channel coefficients and the processing delays, without estimating a propagation medium channel response for the received signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.