Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-01-23
2007-01-23
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S150000, C375S346000
Reexamination Certificate
active
10332144
ABSTRACT:
In maximum delay time setting section106, a delay time width W′ used for cancelling the interference is set using the delay profile. In the present embodiment, delay spread is calculated and a delay wave included in the delay spread is set as W′. First, the delay spread is calculated in delay spread calculating section1061of maximum delay time setting section106. That is to say, the standard deviation of the delay profile is calculated. The calculated delay spread is outputted to maximum delay time determining section1062. The maximum delay time (window width) W′ is determined in maximum delay time determining section1062based on the delay spread. Therefore, the delay wave included in the maximum delay time which is determined by such a way is set to be an object of interference cancellation in joint detection. Thus, besides interference cancellation performance, optimization of calculation scale can be planned without losing performance of RAKE combining.
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Hiramatsu Katsuhiko
Nishio Akihiko
Fan Chieh M.
Perilla Jason M.
Stevens Davis Miller & Mosher LLP
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