Rach receiving apparatus

Details Rach receiving apparatus Rach receiving apparatus

2005-08-09

2005-08-09

Chin, Stephen (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

06928103

ABSTRACT:
The present invention provides an RACH receiving apparatus in which the components can be constructed in a small scale.The RACH receiving apparatus performs a demodulation processing so as to divide it into two stages of a first demodulation processing for multiplying reception data of complex-modulated RACH by sign codes subjected to an arithmetic processing with long codes and phase rotations in a code register multiplying unit, and a second demodulation processing for adding multiplication results every chips and multiplying addition results by signature codes in a signature multiplying unit.

REFERENCES:
patent: 6724806 (2004-04-01), Okumura et al.
patent: 9-200179 (1997-07-01), None

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