Apparatus and method for performing a demodulation operation...

Details Apparatus and method for performing a demodulation operation... Apparatus and method for performing a demodulation operation...

2004-03-23

2008-11-11

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

07450632

ABSTRACT:
An apparatus and method for demodulating signals transmitted from one or more Node-Bs using transmit diversity methods determined on a Node-B basis in a mobile communication system based on code division multiple access (CDMA). In the apparatus, a plurality of fingers assigned on a path-by-path basis discriminates among multipath signals received from the one or more Node-Bs. A combiner selectively combines signals output from the fingers according to the use of transmit diversity. A transmit diversity signal processor demodulates the signals combined by the combiner on the basis of one transmit diversity method determined by a transmit diversity controller. The transmit diversity controller determines the transmit diversity method through transmit diversity information received from the Node-Bs, and controls the transmit diversity signal processor according to the determined transmit diversity method.

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