Patent ID: 8837436

Claim:
A mobile terminal for use in a code division multiple access (CDMA) mobile communication system, in which a base station transmits a control signal formed such that a long code assigned to said base station and a short code are mapped in a first section of said control signal and a first short period code and a second short period code are mapped in a second, long code masked section of said control signal, said mobile terminal comprising: a timing synchronizer to receive a baseband signal obtained by frequency down-converting a radio frequency (RF) signal and calculate a correlation value for said baseband signal by using said first short period code to establish slot timing synchronization, wherein a symbol length of said first short period code has a smaller value than a symbol length of said short code, and a group code detector to detect said second short period code by generating candidate short period codes and for each generated candidate short period code determining a correlation value of that candidate short period code and said second, long code masked section and determining the candidate short code for which the correlation has a maximum value, the second short period code corresponding to a classification of the long code mapped in said first section.