Patent ID: 6987798
Filing Date: 2006-01-17
Classification: H04B,H04J

Abstract:
1. A system for demodulating signals received through packet data channels using information on the packet data channels in a wireless packet data communication system, in which the information is received through packet data control channels and the communication system supports code division multiplexing, the system for demodulating signals comprising: a plurality of fingers for processing signals received from a transmitter as inputs, for performing despreading with pre-assigned spreading codes and outputting the despread chip signals; a chip combiner for combining the chip signals output from the plurality of fingers; and a multiple Walsh demodulator for generating Walsh symbols performing Walsh decovering of each of the chip signals combined by the chip combiner using all Walsh codes available to the packet data channels, and when decoding of the packet data control channels is completed and information on multiple Walsh codes assigned to the packet data channels is obtained, selecting and outputting at least one Walsh symbol corresponding to the multiple Walsh codes from among the Walsh symbols.