Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-06-25
2010-10-26
Ha, Dac V (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S349000, C370S465000, C455S506000, C455S065000
Reexamination Certificate
active
07822101
ABSTRACT:
According to methods and apparatus taught herein, a parametric model of received signal impairment correlations includes a parametric model term that accounts for a dominant receiver but does not result in any significant increase in parametric modeling complexity. In more detail, the parametric model models the dominant interferer as a spatial interferer, which is hypothesized as a point source of interference emanating along single-path channels to each of two or more receiver antennas. The dominant interferer thus is represented in terms of its spatial correlation across receiver antennas. The dominant interferer model term may be included in an overall model fitting process, or it may be fitted separately. Regardless, the spatial modeling approach taught herein may be used for WCDMA and other systems, and may be embodied in essentially any type of linear equalizer receiver structure.
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Coats & Bennett P.L.L.C.
Ha Dac V
Telefonaktiebolaget LM Ericsson (publ)
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