Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-08-09
2011-08-09
Corrielus, Jean B (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S142000, C370S335000, C370S342000
Reexamination Certificate
active
07995641
ABSTRACT:
As taught herein channelization code power estimates are generated for a number of data channels in a received CDMA signal based on a joint determination process. Joint processing in this context yields improved estimation of data channel code powers and corresponding estimations of noise variance. These improvements arise from exploitation of joint processing of measured data value correlations across two or more data channel codes represented in the received signal. In one or more embodiments, joint determination of data channel code powers comprises forming a correlation matrix as a weighted average of correlations determined for a plurality of data channels. In one or more other embodiments, joint determination of data channel code powers comprises jointly fitting the correlation matrices for a plurality of data channels in a least squares error estimation process.
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Bottomley Gregory E.
Cairns Douglas A.
Wang Yi-Pin Eric
Coats & Bennett PLLC
Corrielus Jean B
Telefonaktiebolaget LM Ericsson (publ)
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