CDMA receiver
US7170925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Feb 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/7071
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discriminating the received data on the basis of the combined signal, (1) a weighting unit provided for every path measures power of delayed received waves that arrive via its own path and, if the reception power is less than a set level (breakpoint level), subjects an output signal to weighting conforming to the reception power; (2) a RAKE combiner combines signals output from the weighting units of the respective paths; and (3) a data discrimination unit discriminates receive data based upon the output signal of the combiner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.