Patent ID: 8335245
Filing Date: 2012-12-18
Classification: H04B,H04W

Abstract:
1. A mobile terminal used in a code division multiple access mobile communication system, in which a base station transmits a control signal via a perch channel formed such that a long period code assigned to said base station and a first short period code are mapped in a first section of one slot of said perch channel and a predetermined short period code is mapped in a second section of said one slot, said mobile terminal comprising: a radio frequency (RF) unit for converting a received signal of a carrier frequency received from an antenna to a baseband signal; and a correlator connected to said RF unit and arranged to receive said baseband signal, the correlator including a code generator for generating said predetermined short period code and arranged to calculate a correlation value for said baseband signal by using said predetermined short period code to establish slot timing synchronization, wherein a symbol length of said predetermined short period code has a smaller value than a symbol length of said first short period, and wherein in said second section are mapped a second short period code, and a third short period code being one of a plurality of short period codes each corresponding to classification of the long period code spreading said first section.