Patent ID: 6738412
Filing Date: 2004-05-18
Classification: H04B

Abstract:
A mobile communications device comprising:control means for controlling communication; and communications means for establishing data communication with respect to a cell station, said communications means comprising: first chip clock signal generation means for generating a first chip clock signal Fc; transceiver means for effecting transmission of information; and sync detection and maintaining means for preparing a delay profile, said sync detection and maintaining means including: despreading code generation means for generating a first despreading code C on the basis of the first chip clock signal Fc output from the first chip clock signal generation means and despreading information output from the control means; chip clock signal generation means for generating a chip clock signal fc on the basis of the first chip clock signal Fc output from the first chip clock signal generation means; operation clock signal generation means for generating an operation clock signal fs on the basis of the clock rate value output from the control means; latch means for generating a second despreading code Câ€² by means of latching the first despreading code C; a parallel correlator which extracts a correlation output P from a signal S received by the transceiver means on the basis of the second despreading code Câ€² and the operation clock signal fs; and computation means for preparing a delay profile on the basis of the correlation output P.