Apparatus for mapping and spreading data symbols in mobile...

Details Apparatus for mapping and spreading data symbols in mobile... Apparatus for mapping and spreading data symbols in mobile...

2008-01-29

2008-01-29

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S261000

Reexamination Certificate

active

07324581

ABSTRACT:
The present invention discloses an apparatus for mapping and spreading data symbols in a mobile communication system which can improve efficiency of the system by performing data symbol mapping and spreading processes by using binary operations. The apparatus maps and spreads data symbols by using binary operations when quadrature phase shift keying modulation is performed in a mobile communication time division duplex mode.

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