Patent ID: 6370130
Filing Date: 2002-04-09
Classification: H04B

Abstract:
A DS-CDMA cellular mobile radio of a spread spectrum communication system having a plurality of different long code sequences corresponding to all cells in the communication system, one or more short code sequences for a common control channel common to the cells and a plurality of different short codes corresponding to mobile stations for traffic channels, a transmission signal being spread by said codes, a receiver comprising:one or more of first matched filters for calculating correlation of a received signal with said long code sequences and for despreading said received signal spread by said long code sequences; one or more of second matched filters for calculating correlation of said received signal with said short code sequences for said common control channel and for despreading said received signal spread by said short code sequences; and one or more of third matched filters for calculating correlation of said received signal with said short code sequences for said traffic channel and for despreading said received signal spread by said short code sequences; and one or more of fourth matched filters for calculating correlation of said received signal selectively with said long code sequences, said short code sequences for said common control channel for said short code sequences for said traffic channel.