CDMA baseband receiver capable of establishing...

Details CDMA baseband receiver capable of establishing... CDMA baseband receiver capable of establishing...

2005-10-11

2005-10-11

Le, Amanda T. (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S143000, C370S335000, C370S342000

Reexamination Certificate

active

06954485

ABSTRACT:
A CDMA baseband receiver includes a first correlating unit, a long code phase candidate outputting section and a long code determining section. The first correlating unit calculates first correlation values from a spread modulation signal and a short code which is common to base stations. The long code phase candidate outputting section outputs selected long code phase candidates corresponding to ones selected from the first correlation values, based on the spread modulation signal, and determined long codes. The selected long code phase candidates are other than long code phase candidates for known ones of the base stations. The long code determining section generates the determined long codes for unknown ones of the base stations from the spread modulation signal, the short code, and long codes generated based on the selected long code phase candidates. Each long code is peculiar to one base station.

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