Rake receiver with embedded decision feedback equalizer
US6690715B2 · kind B2 · utility
24Cited by
9References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 30, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0349
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The performance of a RAKE receiver for indoor multipath WLAN applications on direct sequence spread spectrum signals having relatively short codeword lengths is enhanced by embedding a decision feedback equalizer structure in the signal processing path through the receiver's channel matched filter and codeword correlator. The decision feedback equalizer serves to cancel both inter-codeword interference (ISI) or “bleed-over” between codewords, and intra-codeword chip interference (ICI) or smearing of the energy within the chips of a respective codeword.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.