Patent ID: 6822999
Filing Date: 2004-11-23
Classification: H04B

Abstract:
A high-speed cell searching apparatus for a communication system comprising;a distributed sample acquisition (DSA) spreading section for producing scrambling sequences in a complex form using at least two first main sequences, spreading and scrambling a data using a spreading sequence and the scrambling sequences, and sampling respective states of the at least two first main sequences; a sample spreading section for modulating respective state sample values outputted from the DSA spreading section into code symbols, and spreading the modulated symbols using at least two first igniter sequences; a sample despreading section for producing at least two second igniter sequences, and despreading and demodulating the input state signals using the second igniter sequences; and a DSA despreading section for producing at least two second main sequences, and descrambling and despreading the data by descrambling sequences in a complex form produced using the state samples outputted from the sample despreading section and the second main sequences and the despreading sequences.